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1 | ./reptyr/reptyr.c | /*
* Copyright (C) 2011 by Nelson Elhage
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
*/
#include <fcntl.h>
#include <unistd.h>
#include <sys/types.h>
#include <sys/select.h>
#include <sys/ioctl.h>
#include <stdio.h>
#include <stdlib.h>
#include <errno.h>
#include <string.h>
#include <stdarg.h>
#include <termios.h>
#include <signal.h>
#include "reptyr.h"
#ifndef __linux__
#error reptyr is currently Linux-only.
#endif
static int verbose = 0;
void _debug(const char *pfx, const char *msg, va_list ap) {
if (pfx)
fprintf(stderr, "%s", pfx);
vfprintf(stderr, msg, ap);
fprintf(stderr, "\n");
}
void die(const char *msg, ...) {
va_list ap;
va_start(ap, msg);
_debug("[!] ", msg, ap);
va_end(ap);
exit(1);
}
void debug(const char *msg, ...) {
va_list ap;
if (!verbose)
return;
va_start(ap, msg);
_debug("[+] ", msg, ap);
va_end(ap);
}
void error(const char *msg, ...) {
va_list ap;
va_start(ap, msg);
_debug("[-] ", msg, ap);
va_end(ap);
}
void setup_raw(struct termios *save) {
struct termios set;
if (tcgetattr(0, save) < 0)
die("Unable to read terminal attributes: %m");
set = *save;
cfmakeraw(&set);
if (tcsetattr(0, TCSANOW, &set) < 0)
die("Unable to set terminal attributes: %m");
}
void resize_pty(int pty) {
struct winsize sz;
if (ioctl(0, TIOCGWINSZ, &sz) < 0)
return;
ioctl(pty, TIOCSWINSZ, &sz);
}
int writeall(int fd, const void *buf, ssize_t count) {
ssize_t rv;
while (count > 0) {
rv = write(fd, buf, count);
if (rv < 0) {
if (errno == EINTR)
continue;
return rv;
}
count -= rv;
buf += rv;
}
return 0;
}
volatile sig_atomic_t winch_happened = 0;
void do_winch(int signal) {
winch_happened = 1;
}
void do_proxy(int pty) {
char buf[4096];
ssize_t count;
fd_set set;
while (1) {
if (winch_happened) {
winch_happened = 0;
/*
* FIXME: If a signal comes in after this point but before
* select(), the resize will be delayed until we get more
* input. signalfd() is probably the cleanest solution.
*/
resize_pty(pty);
}
FD_ZERO(&set);
FD_SET(0, &set);
FD_SET(pty, &set);
if (select(pty+1, &set, NULL, NULL, NULL) < 0) {
if (errno == EINTR)
continue;
fprintf(stderr, "select: %m");
return;
}
if (FD_ISSET(0, &set)) {
count = read(0, buf, sizeof buf);
if (count < 0)
return;
writeall(pty, buf, count);
}
if (FD_ISSET(pty, &set)) {
count = read(pty, buf, sizeof buf);
if (count < 0)
return;
writeall(1, buf, count);
}
}
}
void usage(char *me) {
fprintf(stderr, "Usage: %s [-s] PID\n", me);
fprintf(stderr, " %s -l|-L [COMMAND [ARGS]]\n", me);
fprintf(stderr, " -l Create a new pty pair and print the name of the slave.\n");
fprintf(stderr, " if there are command-line arguments after -l\n");
fprintf(stderr, " they are executed with REPTYR_PTY set to path of pty.\n");
fprintf(stderr, " -L Like '-l', but also redirect the child's stdio to the slave.\n");
fprintf(stderr, " -s Attach fds 0-2 on the target, even if it is not attached to a tty.\n");
fprintf(stderr, " -h Print this help message and exit.\n");
fprintf(stderr, " -v Print the version number and exit.\n");
fprintf(stderr, " -V Print verbose debug output.\n");
}
void check_yama_ptrace_scope(void) {
int fd = open("/proc/sys/kernel/yama/ptrace_scope", O_RDONLY);
if (fd >= 0) {
char buf[256];
int n;
n = read(fd, buf, sizeof buf);
close(fd);
if (n > 0) {
if (!atoi(buf)) {
return;
}
}
} else if (errno == ENOENT)
return;
fprintf(stderr, "The kernel denied permission while attaching. If your uid matches\n");
fprintf(stderr, "the target's, check the value of /proc/sys/kernel/yama/ptrace_scope.\n");
fprintf(stderr, "For more information, see /etc/sysctl.d/10-ptrace.conf\n");
}
int main(int argc, char **argv) {
struct termios saved_termios;
struct sigaction act;
int pty;
int arg = 1;
int do_attach = 1;
int force_stdio = 0;
int unattached_script_redirection = 0;
if (argc < 2) {
usage(argv[0]);
return 2;
}
if (argv[arg][0] == '-') {
switch(argv[arg][1]) {
case 'h':
usage(argv[0]);
return 0;
case 'l':
do_attach = 0;
break;
case 'L':
do_attach = 0;
unattached_script_redirection = 1;
break;
case 's':
arg++;
force_stdio = 1;
break;
case 'v':
printf("This is reptyr version %s.\n", REPTYR_VERSION);
printf(" by Nelson Elhage <nelhage@nelhage.com>\n");
printf("http://github.com/nelhage/reptyr/\n");
return 0;
case 'V':
arg++;
verbose = 1;
break;
default:
usage(argv[0]);
return 1;
}
}
if (do_attach && arg >= argc) {
fprintf(stderr, "%s: No pid specified to attach\n", argv[0]);
usage(argv[0]);
return 1;
}
if ((pty = open("/dev/ptmx", O_RDWR|O_NOCTTY)) < 0)
die("Unable to open /dev/ptmx: %m");
if (unlockpt(pty) < 0)
die("Unable to unlockpt: %m");
if (grantpt(pty) < 0)
die("Unable to grantpt: %m");
if (do_attach) {
pid_t child = atoi(argv[arg]);
int err;
if ((err = attach_child(child, ptsname(pty), force_stdio))) {
fprintf(stderr, "Unable to attach to pid %d: %s\n", child, strerror(err));
if (err == EPERM) {
check_yama_ptrace_scope();
}
return 1;
}
} else {
printf("Opened a new pty: %s\n", ptsname(pty));
fflush(stdout);
if (argc > 2) {
if(!fork()) {
setenv("REPTYR_PTY", ptsname(pty), 1);
if (unattached_script_redirection) {
int f;
setpgid(0, getppid());
setsid();
f = open(ptsname(pty), O_RDONLY, 0); dup2(f, 0); close(f);
f = open(ptsname(pty), O_WRONLY, 0); dup2(f, 1); dup2(f,2); close(f);
}
close(pty);
execvp(argv[2], argv+2);
exit(1);
}
}
}
setup_raw(&saved_termios);
memset(&act, 0, sizeof act);
act.sa_handler = do_winch;
act.sa_flags = 0;
sigaction(SIGWINCH, &act, NULL);
resize_pty(pty);
do_proxy(pty);
tcsetattr(0, TCSANOW, &saved_termios);
return 0;
}
|
2 | ./reptyr/attach.c | /*
* Copyright (C) 2011 by Nelson Elhage
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
*/
#include <sys/types.h>
#include <dirent.h>
#include <sys/syscall.h>
#include <sys/mman.h>
#include <stdio.h>
#include <string.h>
#include <stdlib.h>
#include <fcntl.h>
#include <errno.h>
#include <termios.h>
#include <sys/ioctl.h>
#include <sys/wait.h>
#include <signal.h>
#include <limits.h>
#include <time.h>
#include <sys/time.h>
#include <sys/stat.h>
#include "ptrace.h"
#include "reptyr.h"
#define TASK_COMM_LENGTH 16
struct proc_stat {
pid_t pid;
char comm[TASK_COMM_LENGTH+1];
char state;
pid_t ppid, sid, pgid;
dev_t ctty;
};
#define do_syscall(child, name, a0, a1, a2, a3, a4, a5) \
ptrace_remote_syscall((child), ptrace_syscall_numbers((child))->nr_##name, \
a0, a1, a2, a3, a4, a5)
int parse_proc_stat(int statfd, struct proc_stat *out) {
char buf[1024];
int n;
unsigned dev;
lseek(statfd, 0, SEEK_SET);
if (read(statfd, buf, sizeof buf) < 0)
return errno;
n = sscanf(buf, "%d (%16[^)]) %c %d %d %d %u",
&out->pid, out->comm,
&out->state, &out->ppid, &out->sid,
&out->pgid, &dev);
if (n == EOF)
return errno;
if (n != 7) {
return EINVAL;
}
out->ctty = dev;
return 0;
}
int read_proc_stat(pid_t pid, struct proc_stat *out) {
char stat_path[PATH_MAX];
int statfd;
int err;
snprintf(stat_path, sizeof stat_path, "/proc/%d/stat", pid);
statfd = open(stat_path, O_RDONLY);
if (statfd < 0) {
error("Unable to open %s: %s", stat_path, strerror(errno));
return -statfd;
}
err = parse_proc_stat(statfd, out);
close(statfd);
return err;
}
static void do_unmap(struct ptrace_child *child, child_addr_t addr, unsigned long len) {
if (addr == (unsigned long)-1)
return;
do_syscall(child, munmap, addr, len, 0, 0, 0, 0);
}
int *get_child_tty_fds(struct ptrace_child *child, int statfd, int *count) {
struct proc_stat child_status;
struct stat tty_st, st;
char buf[PATH_MAX];
int n = 0, allocated = 0;
int *fds = NULL;
DIR *dir;
struct dirent *d;
int *tmp = NULL;
debug("Looking up fds for tty in child.");
if ((child->error = parse_proc_stat(statfd, &child_status)))
return NULL;
debug("Resolved child tty: %x", (unsigned)child_status.ctty);
if (stat("/dev/tty", &tty_st) < 0) {
child->error = errno;
error("Unable to stat /dev/tty");
return NULL;
}
snprintf(buf, sizeof buf, "/proc/%d/fd/", child->pid);
if ((dir = opendir(buf)) == NULL)
return NULL;
while ((d = readdir(dir)) != NULL) {
if (d->d_name[0] == '.') continue;
snprintf(buf, sizeof buf, "/proc/%d/fd/%s", child->pid, d->d_name);
if (stat(buf, &st) < 0)
continue;
if (st.st_rdev == child_status.ctty
|| st.st_rdev == tty_st.st_rdev) {
if (n == allocated) {
allocated = allocated ? 2 * allocated : 2;
tmp = realloc(fds, allocated * sizeof *tmp);
if (tmp == NULL) {
child->error = errno;
error("Unable to allocate memory for fd array.");
free(fds);
fds = NULL;
goto out;
}
fds = tmp;
}
debug("Found an alias for the tty: %s", d->d_name);
fds[n++] = atoi(d->d_name);
}
}
out:
*count = n;
closedir(dir);
return fds;
}
void move_process_group(struct ptrace_child *child, pid_t from, pid_t to) {
DIR *dir;
struct dirent *d;
pid_t pid;
char *p;
int err;
if ((dir = opendir("/proc/")) == NULL)
return;
while ((d = readdir(dir)) != NULL) {
if (d->d_name[0] == '.') continue;
pid = strtol(d->d_name, &p, 10);
if (*p) continue;
if (getpgid(pid) == from) {
debug("Change pgid for pid %d", pid);
err = do_syscall(child, setpgid, pid, to, 0, 0, 0, 0);
if (err < 0)
error(" failed: %s", strerror(-err));
}
}
closedir(dir);
}
int do_setsid(struct ptrace_child *child) {
int err = 0;
struct ptrace_child dummy;
err = do_syscall(child, fork, 0, 0, 0, 0, 0, 0);
if (err < 0)
return err;
debug("Forked a child: %ld", child->forked_pid);
err = ptrace_finish_attach(&dummy, child->forked_pid);
if (err < 0)
goto out_kill;
dummy.state = ptrace_after_syscall;
memcpy(&dummy.user, &child->user, sizeof child->user);
if (ptrace_restore_regs(&dummy)) {
err = dummy.error;
goto out_kill;
}
err = do_syscall(&dummy, setpgid, 0, 0, 0, 0, 0, 0);
if (err < 0) {
error("Failed to setpgid: %s", strerror(-err));
goto out_kill;
}
move_process_group(child, child->pid, dummy.pid);
err = do_syscall(child, setsid, 0, 0, 0, 0, 0, 0);
if (err < 0) {
error("Failed to setsid: %s", strerror(-err));
move_process_group(child, dummy.pid, child->pid);
goto out_kill;
}
debug("Did setsid()");
out_kill:
kill(dummy.pid, SIGKILL);
ptrace_detach_child(&dummy);
ptrace_wait(&dummy);
do_syscall(child, wait4, dummy.pid, 0, WNOHANG, 0, 0, 0);
return err;
}
int ignore_hup(struct ptrace_child *child, unsigned long scratch_page) {
int err;
if (ptrace_syscall_numbers(child)->nr_signal != -1) {
err = do_syscall(child, signal, SIGHUP, (unsigned long)SIG_IGN, 0, 0, 0, 0);
} else {
struct sigaction act = {
.sa_handler = SIG_IGN,
};
err = ptrace_memcpy_to_child(child, scratch_page,
&act, sizeof act);
if (err < 0)
return err;
err = do_syscall(child, rt_sigaction,
SIGHUP, scratch_page,
0, 8, 0, 0);
}
return err;
}
/*
* Wait for the specific pid to enter state 'T', or stopped. We have to pull the
* /proc file rather than attaching with ptrace() and doing a wait() because
* half the point of this exercise is for the process's real parent (the shell)
* to see the TSTP.
*
* In case the process is masking or ignoring SIGTSTP, we time out after a
* second and continue with the attach -- it'll still work mostly right, you
* just won't get the old shell back.
*/
void wait_for_stop(pid_t pid, int fd) {
struct timeval start, now;
struct timespec sleep;
struct proc_stat st;
gettimeofday(&start, NULL);
while (1) {
gettimeofday(&now, NULL);
if ((now.tv_sec > start.tv_sec && now.tv_usec > start.tv_usec)
|| (now.tv_sec - start.tv_sec > 1)) {
error("Timed out waiting for child stop.");
break;
}
/*
* If anything goes wrong reading or parsing the stat node, just give
* up.
*/
if (parse_proc_stat(fd, &st))
break;
if (st.state == 'T')
break;
sleep.tv_sec = 0;
sleep.tv_nsec = 10000000;
nanosleep(&sleep, NULL);
}
}
int copy_tty_state(pid_t pid, const char *pty) {
char buf[PATH_MAX];
int fd, err = EINVAL;
struct termios tio;
int i;
for (i = 0; i < 3 && err; i++) {
err = 0;
snprintf(buf, sizeof buf, "/proc/%d/fd/%d", pid, i);
if ((fd = open(buf, O_RDONLY)) < 0) {
err = -fd;
continue;
}
if (!isatty(fd)) {
err = ENOTTY;
goto retry;
}
if (tcgetattr(fd, &tio) < 0) {
err = -errno;
}
retry:
close(fd);
}
if (err)
return err;
if ((fd = open(pty, O_RDONLY)) < 0)
return -errno;
if (tcsetattr(fd, TCSANOW, &tio) < 0)
err = errno;
close(fd);
return -err;
}
int check_pgroup(pid_t target) {
pid_t pg;
DIR *dir;
struct dirent *d;
pid_t pid;
char *p;
int err = 0;
struct proc_stat pid_stat;
debug("Checking for problematic process group members...");
pg = getpgid(target);
if (pg < 0) {
error("Unable to get pgid (does process %d exist?)", (int)target);
return pg;
}
if ((dir = opendir("/proc/")) == NULL)
return errno;
while ((d = readdir(dir)) != NULL) {
if (d->d_name[0] == '.') continue;
pid = strtol(d->d_name, &p, 10);
if (*p) continue;
if (pid == target) continue;
if (getpgid(pid) == pg) {
/*
* We are actually being somewhat overly-conservative here
* -- if pid is a child of target, and has not yet called
* execve(), reptyr's setpgid() strategy may suffice. That
* is a fairly rare case, and annoying to check for, so
* for now let's just bail out.
*/
if ((err = read_proc_stat(pid, &pid_stat))) {
memcpy(pid_stat.comm, "???", 4);
}
error("Process %d (%.*s) shares %d's process group. Unable to attach.\n"
"(This most commonly means that %d has a suprocesses).",
(int)pid, TASK_COMM_LENGTH, pid_stat.comm, (int)target, (int)target);
err = EINVAL;
goto out;
}
}
out:
closedir(dir);
return err;
}
int attach_child(pid_t pid, const char *pty, int force_stdio) {
struct ptrace_child child;
unsigned long scratch_page = -1;
int *child_tty_fds = NULL, n_fds, child_fd, statfd;
int i;
int err = 0;
long page_size = sysconf(_SC_PAGE_SIZE);
char stat_path[PATH_MAX];
long mmap_syscall;
if ((err = check_pgroup(pid))) {
return err;
}
if ((err = copy_tty_state(pid, pty))) {
if (err == ENOTTY && !force_stdio) {
error("Target is not connected to a terminal.\n"
" Use -s to force attaching anyways.");
return err;
}
}
snprintf(stat_path, sizeof stat_path, "/proc/%d/stat", pid);
statfd = open(stat_path, O_RDONLY);
if (statfd < 0) {
error("Unable to open %s: %s", stat_path, strerror(errno));
return -statfd;
}
kill(pid, SIGTSTP);
wait_for_stop(pid, statfd);
if (ptrace_attach_child(&child, pid)) {
err = child.error;
goto out_cont;
}
if (ptrace_advance_to_state(&child, ptrace_at_syscall)) {
err = child.error;
goto out_detach;
}
if (ptrace_save_regs(&child)) {
err = child.error;
goto out_detach;
}
mmap_syscall = ptrace_syscall_numbers(&child)->nr_mmap2;
if (mmap_syscall == -1)
mmap_syscall = ptrace_syscall_numbers(&child)->nr_mmap;
scratch_page = ptrace_remote_syscall(&child, mmap_syscall, 0,
page_size, PROT_READ|PROT_WRITE,
MAP_ANONYMOUS|MAP_PRIVATE, 0, 0);
if (scratch_page > (unsigned long)-1000) {
err = -(signed long)scratch_page;
goto out_unmap;
}
debug("Allocated scratch page: %lx", scratch_page);
if (force_stdio) {
child_tty_fds = malloc(3 * sizeof(int));
if (!child_tty_fds) {
err = ENOMEM;
goto out_unmap;
}
n_fds = 3;
child_tty_fds[0] = 0;
child_tty_fds[1] = 1;
child_tty_fds[2] = 2;
} else {
child_tty_fds = get_child_tty_fds(&child, statfd, &n_fds);
if (!child_tty_fds) {
err = child.error;
goto out_unmap;
}
}
if (ptrace_memcpy_to_child(&child, scratch_page, pty, strlen(pty)+1)) {
err = child.error;
error("Unable to memcpy the pty path to child.");
goto out_free_fds;
}
child_fd = do_syscall(&child, open,
scratch_page, O_RDWR|O_NOCTTY,
0, 0, 0, 0);
if (child_fd < 0) {
err = child_fd;
error("Unable to open the tty in the child.");
goto out_free_fds;
}
debug("Opened the new tty in the child: %d", child_fd);
err = ignore_hup(&child, scratch_page);
if (err < 0)
goto out_close;
err = do_syscall(&child, getsid, 0, 0, 0, 0, 0, 0);
if (err != child.pid) {
debug("Target is not a session leader, attempting to setsid.");
err = do_setsid(&child);
} else {
do_syscall(&child, ioctl, child_tty_fds[0], TIOCNOTTY, 0, 0, 0, 0);
}
if (err < 0)
goto out_close;
err = do_syscall(&child, ioctl, child_fd, TIOCSCTTY, 0, 0, 0, 0);
if (err < 0) {
error("Unable to set controlling terminal.");
goto out_close;
}
debug("Set the controlling tty");
for (i = 0; i < n_fds; i++)
do_syscall(&child, dup2, child_fd, child_tty_fds[i], 0, 0, 0, 0);
err = 0;
out_close:
do_syscall(&child, close, child_fd, 0, 0, 0, 0, 0);
out_free_fds:
free(child_tty_fds);
out_unmap:
do_unmap(&child, scratch_page, page_size);
ptrace_restore_regs(&child);
out_detach:
ptrace_detach_child(&child);
if (err == 0) {
kill(child.pid, SIGSTOP);
wait_for_stop(child.pid, statfd);
}
kill(child.pid, SIGWINCH);
out_cont:
kill(child.pid, SIGCONT);
close(statfd);
return err < 0 ? -err : err;
}
|
3 | ./reptyr/ptrace.c | /*
* Copyright (C) 2011 by Nelson Elhage
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
*/
#include <sys/ptrace.h>
#include <asm/ptrace.h>
#include <sys/types.h>
#include <sys/user.h>
#include <sys/wait.h>
#include <unistd.h>
#include <stdlib.h>
#include <stdio.h>
#include <errno.h>
#include <string.h>
#include <sys/syscall.h>
#include <sys/mman.h>
#include <assert.h>
#include <stddef.h>
#include "ptrace.h"
/*
* RHEL 5's kernel supports these flags, but their libc doesn't ship a ptrace.h
* that defines them. Define them here, and if our kernel doesn't support them,
* we'll find out when PTRACE_SETOPTIONS fails.
*/
#ifndef PTRACE_O_TRACESYSGOOD
#define PTRACE_O_TRACESYSGOOD 0x00000001
#endif
#ifndef PTRACE_O_TRACEFORK
#define PTRACE_O_TRACEFORK 0x00000002
#endif
#ifndef PTRACE_EVENT_FORK
#define PTRACE_EVENT_FORK 1
#endif
#define min(x, y) ({ \
typeof(x) _min1 = (x); \
typeof(y) _min2 = (y); \
_min1 < _min2 ? _min1 : _min2; })
static long __ptrace_command(struct ptrace_child *child, enum __ptrace_request req,
void *, void*);
#define ptrace_command(cld, req, ...) _ptrace_command(cld, req, ## __VA_ARGS__, NULL, NULL)
#define _ptrace_command(cld, req, addr, data, ...) __ptrace_command((cld), (req), (void*)(addr), (void*)(data))
struct ptrace_personality {
size_t syscall_rv;
size_t syscall_arg0;
size_t syscall_arg1;
size_t syscall_arg2;
size_t syscall_arg3;
size_t syscall_arg4;
size_t syscall_arg5;
size_t reg_ip;
};
static struct ptrace_personality *personality(struct ptrace_child *child);
#if defined(__amd64__)
#include "arch/amd64.h"
#elif defined(__i386__)
#include "arch/i386.h"
#elif defined(__arm__)
#include "arch/arm.h"
#else
#error Unsupported architecture.
#endif
#ifndef ARCH_HAVE_MULTIPLE_PERSONALITIES
int arch_get_personality(struct ptrace_child *child) {
return 0;
}
struct syscall_numbers arch_syscall_numbers[] = {
#include "arch/default-syscalls.h"
};
#endif
static struct ptrace_personality *personality(struct ptrace_child *child) {
return &arch_personality[child->personality];
}
struct syscall_numbers *ptrace_syscall_numbers(struct ptrace_child *child) {
return &arch_syscall_numbers[child->personality];
}
int ptrace_attach_child(struct ptrace_child *child, pid_t pid) {
memset(child, 0, sizeof *child);
child->pid = pid;
if (ptrace_command(child, PTRACE_ATTACH) < 0)
return -1;
return ptrace_finish_attach(child, pid);
}
int ptrace_finish_attach(struct ptrace_child *child, pid_t pid) {
memset(child, 0, sizeof *child);
child->pid = pid;
kill(pid, SIGCONT);
if (ptrace_wait(child) < 0)
goto detach;
if (arch_get_personality(child))
goto detach;
if (ptrace_command(child, PTRACE_SETOPTIONS, 0,
PTRACE_O_TRACESYSGOOD|PTRACE_O_TRACEFORK) < 0)
goto detach;
return 0;
detach:
/* Don't clobber child->error */
ptrace(PTRACE_DETACH, child->pid, 0, 0);
return -1;
}
int ptrace_detach_child(struct ptrace_child *child) {
if (ptrace_command(child, PTRACE_DETACH, 0, 0) < 0)
return -1;
child->state = ptrace_detached;
return 0;
}
int ptrace_wait(struct ptrace_child *child) {
if (waitpid(child->pid, &child->status, 0) < 0) {
child->error = errno;
return -1;
}
if (WIFEXITED(child->status) || WIFSIGNALED(child->status)) {
child->state = ptrace_exited;
} else if (WIFSTOPPED(child->status)) {
int sig = WSTOPSIG(child->status);
if (sig & 0x80) {
child->state = (child->state == ptrace_at_syscall) ?
ptrace_after_syscall : ptrace_at_syscall;
} else {
if (sig == SIGTRAP && (((child->status >> 8) & PTRACE_EVENT_FORK) == PTRACE_EVENT_FORK))
ptrace_command(child, PTRACE_GETEVENTMSG, 0, &child->forked_pid);
if (child->state != ptrace_at_syscall)
child->state = ptrace_stopped;
}
} else {
child->error = EINVAL;
return -1;
}
return 0;
}
int ptrace_advance_to_state(struct ptrace_child *child,
enum child_state desired) {
int err;
while (child->state != desired) {
switch(desired) {
case ptrace_after_syscall:
case ptrace_at_syscall:
if (WIFSTOPPED(child->status) && WSTOPSIG(child->status) == SIGSEGV) {
child->error = EAGAIN;
return -1;
}
err = ptrace_command(child, PTRACE_SYSCALL, 0, 0);
break;
case ptrace_running:
return ptrace_command(child, PTRACE_CONT, 0, 0);
case ptrace_stopped:
err = kill(child->pid, SIGSTOP);
if (err < 0)
child->error = errno;
break;
default:
child->error = EINVAL;
return -1;
}
if (err < 0)
return err;
if (ptrace_wait(child) < 0)
return -1;
}
return 0;
}
int ptrace_save_regs(struct ptrace_child *child) {
if (ptrace_advance_to_state(child, ptrace_at_syscall) < 0)
return -1;
if (ptrace_command(child, PTRACE_GETREGS, 0, &child->user) < 0)
return -1;
arch_fixup_regs(child);
if (arch_save_syscall(child) < 0)
return -1;
return 0;
}
int ptrace_restore_regs(struct ptrace_child *child) {
int err;
err = ptrace_command(child, PTRACE_SETREGS, 0, &child->user);
if (err < 0)
return err;
return arch_restore_syscall(child);
}
unsigned long ptrace_remote_syscall(struct ptrace_child *child,
unsigned long sysno,
unsigned long p0, unsigned long p1,
unsigned long p2, unsigned long p3,
unsigned long p4, unsigned long p5) {
unsigned long rv;
if (ptrace_advance_to_state(child, ptrace_at_syscall) < 0)
return -1;
#define setreg(r, v) do { \
if (ptrace_command(child, PTRACE_POKEUSER, \
personality(child)->r, \
(v)) < 0) \
return -1; \
} while (0)
if (arch_set_syscall(child, sysno) < 0)
return -1;
setreg(syscall_arg0, p0);
setreg(syscall_arg1, p1);
setreg(syscall_arg2, p2);
setreg(syscall_arg3, p3);
setreg(syscall_arg4, p4);
setreg(syscall_arg5, p5);
if (ptrace_advance_to_state(child, ptrace_after_syscall) < 0)
return -1;
rv = ptrace_command(child, PTRACE_PEEKUSER,
personality(child)->syscall_rv);
if (child->error)
return -1;
setreg(reg_ip, *(unsigned long*)((void*)&child->user +
personality(child)->reg_ip));
#undef setreg
return rv;
}
int ptrace_memcpy_to_child(struct ptrace_child *child, child_addr_t dst, const void *src, size_t n) {
unsigned long scratch;
while (n >= sizeof(unsigned long)) {
if (ptrace_command(child, PTRACE_POKEDATA, dst, *((unsigned long*)src)) < 0)
return -1;
dst += sizeof(unsigned long);
src += sizeof(unsigned long);
n -= sizeof(unsigned long);
}
if (n) {
scratch = ptrace_command(child, PTRACE_PEEKDATA, dst);
if (child->error)
return -1;
memcpy(&scratch, src, n);
if (ptrace_command(child, PTRACE_POKEDATA, dst, scratch) < 0)
return -1;
}
return 0;
}
int ptrace_memcpy_from_child(struct ptrace_child *child, void *dst, child_addr_t src, size_t n) {
unsigned long scratch;
while (n) {
scratch = ptrace_command(child, PTRACE_PEEKDATA, src);
if (child->error) return -1;
memcpy(dst, &scratch, min(n, sizeof(unsigned long)));
dst += sizeof(unsigned long);
src += sizeof(unsigned long);
if (n >= sizeof(unsigned long))
n -= sizeof(unsigned long);
else
n = 0;
}
return 0;
}
static long __ptrace_command(struct ptrace_child *child, enum __ptrace_request req,
void *addr, void *data) {
long rv;
errno = 0;
rv = ptrace(req, child->pid, addr, data);
child->error = errno;
return rv;
}
#ifdef BUILD_PTRACE_MAIN
int main(int argc, char **argv) {
struct ptrace_child child;
pid_t pid;
if (argc < 2) {
printf("Usage: %s pid\n", argv[0]);
return 1;
}
pid = atoi(argv[1]);
assert(!ptrace_attach_child(&child, pid));
assert(!ptrace_save_regs(&child));
printf("mmap = %lx\n", ptrace_remote_syscall(&child, mmap_syscall, 0,
4096, PROT_READ|PROT_WRITE,
MAP_ANONYMOUS|MAP_PRIVATE, 0, 0));
reset_user_struct(&child.user);
assert(!ptrace_restore_regs(&child));
assert(!ptrace_detach_child(&child));
return 0;
}
#endif
|
4 | ./pgmp/sandbox/hello/hello.c | /* A test program to study the mpz_t structure.
*
* Copyright (C) 2011 Daniele Varrazzo
*/
#include <stdio.h>
#include <gmp.h>
int
main(int argc, char **argv)
{
mpz_t z1, z2;
mpz_init_set_ui(z1, ~((unsigned long int)0));
mpz_init(z2);
mpz_add_ui(z2, z1, 1);
mpz_out_str(stdout, 10, z2);
printf("\n");
return 0;
}
|
5 | ./pgmp/src/pgmp_utils.c | /* pgmp_utils -- misc utility module
*
* Copyright (C) 2011 Daniele Varrazzo
*
* This file is part of the PostgreSQL GMP Module
*
* The PostgreSQL GMP Module is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public License as
* published by the Free Software Foundation; either version 3 of the License,
* or (at your option) any later version.
*
* The PostgreSQL GMP Module is distributed in the hope that it will be
* useful, but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser
* General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with the PostgreSQL GMP Module. If not, see
* http://www.gnu.org/licenses/.
*/
#include "pgmp_utils.h"
#if PG_VERSION_NUM < 90000
#include "nodes/nodes.h" /* for IsA */
#include "nodes/execnodes.h" /* for AggState */
/*
* AggCheckCallContext - test if a SQL function is being called as an aggregate
*
* The function is available from PG 9.0. This allows compatibility with
* previous versions.
*/
int
AggCheckCallContext(FunctionCallInfo fcinfo, MemoryContext *aggcontext)
{
if (fcinfo->context && IsA(fcinfo->context, AggState))
{
if (aggcontext) {
*aggcontext = ((AggState *) fcinfo->context)->aggcontext;
}
return AGG_CONTEXT_AGGREGATE;
}
#if PG_VERSION_NUM >= 80400
if (fcinfo->context && IsA(fcinfo->context, WindowAggState))
{
if (aggcontext) {
/* different from PG 9.0: in PG 8.4 there is no aggcontext */
*aggcontext = ((WindowAggState *) fcinfo->context)->wincontext;
}
return AGG_CONTEXT_WINDOW;
}
#endif
/* this is just to prevent "uninitialized variable" warnings */
if (aggcontext) {
*aggcontext = NULL;
}
return 0;
}
#endif
|
6 | ./pgmp/src/pmpz_agg.c | /* pmpz_agg -- mpz aggregation functions
*
* Copyright (C) 2011 Daniele Varrazzo
*
* This file is part of the PostgreSQL GMP Module
*
* The PostgreSQL GMP Module is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public License as
* published by the Free Software Foundation; either version 3 of the License,
* or (at your option) any later version.
*
* The PostgreSQL GMP Module is distributed in the hope that it will be
* useful, but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser
* General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with the PostgreSQL GMP Module. If not, see
* http://www.gnu.org/licenses/.
*/
#include "pmpz.h"
#include "pgmp_utils.h" /* for AggCheckCallContext on PG < 9.0 */
#include "pgmp-impl.h"
#include "fmgr.h"
/* Convert an inplace accumulator into a pmpz structure.
*
* This function is strict, so don't care about NULLs
*/
PGMP_PG_FUNCTION(_pmpz_from_agg)
{
mpz_t *a;
a = (mpz_t *)PG_GETARG_POINTER(0);
PGMP_RETURN_MPZ(*a);
}
/* Macro to create an accumulation function from a gmp operator.
*
* This function can't be strict because the internal state is not compatible
* with the base type.
*/
#define PMPZ_AGG(op, BLOCK, rel) \
\
PGMP_PG_FUNCTION(_pmpz_agg_ ## op) \
{ \
mpz_t *a; \
const mpz_t z; \
MemoryContext oldctx; \
MemoryContext aggctx; \
\
if (UNLIKELY(!AggCheckCallContext(fcinfo, &aggctx))) \
{ \
ereport(ERROR, \
(errcode(ERRCODE_DATA_EXCEPTION), \
errmsg("_mpz_agg_" #op " can only be called in accumulation"))); \
} \
\
if (PG_ARGISNULL(1)) { \
if (PG_ARGISNULL(0)) { \
PG_RETURN_NULL(); \
} \
else { \
PG_RETURN_POINTER(PG_GETARG_POINTER(0)); \
} \
} \
\
PGMP_GETARG_MPZ(z, 1); \
\
oldctx = MemoryContextSwitchTo(aggctx); \
\
if (LIKELY(!PG_ARGISNULL(0))) { \
a = (mpz_t *)PG_GETARG_POINTER(0); \
BLOCK(op, rel); \
} \
else { /* uninitialized */ \
a = (mpz_t *)palloc(sizeof(mpz_t)); \
mpz_init_set(*a, z); \
} \
\
MemoryContextSwitchTo(oldctx); \
\
PG_RETURN_POINTER(a); \
}
#define PMPZ_AGG_OP(op, rel) \
mpz_ ## op (*a, *a, z)
PMPZ_AGG(add, PMPZ_AGG_OP, 0)
PMPZ_AGG(mul, PMPZ_AGG_OP, 0)
PMPZ_AGG(and, PMPZ_AGG_OP, 0)
PMPZ_AGG(ior, PMPZ_AGG_OP, 0)
PMPZ_AGG(xor, PMPZ_AGG_OP, 0)
#define PMPZ_AGG_REL(op, rel) \
do { \
if (mpz_cmp(*a, z) rel 0) { \
mpz_set(*a, z); \
} \
} while (0)
PMPZ_AGG(min, PMPZ_AGG_REL, >)
PMPZ_AGG(max, PMPZ_AGG_REL, <)
|
7 | ./pgmp/src/pmpq_io.c | /* pmpq_io -- mpq Input/Output functions
*
* Copyright (C) 2011 Daniele Varrazzo
*
* This file is part of the PostgreSQL GMP Module
*
* The PostgreSQL GMP Module is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public License as
* published by the Free Software Foundation; either version 3 of the License,
* or (at your option) any later version.
*
* The PostgreSQL GMP Module is distributed in the hope that it will be
* useful, but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser
* General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with the PostgreSQL GMP Module. If not, see
* http://www.gnu.org/licenses/.
*/
#include "pmpq.h"
#include "pmpz.h"
#include "pgmp-impl.h"
#include "fmgr.h"
#include "utils/builtins.h" /* for numeric_out */
#include <string.h>
/*
* Input/Output functions
*/
PGMP_PG_FUNCTION(pmpq_in)
{
char *str;
mpq_t q;
str = PG_GETARG_CSTRING(0);
mpq_init(q);
if (0 != mpq_set_str(q, str, 0))
{
ereport(ERROR,
(errcode(ERRCODE_INVALID_TEXT_REPRESENTATION),
errmsg("invalid input syntax for mpq: \"%s\"",
str)));
}
ERROR_IF_DENOM_ZERO(mpq_denref(q));
mpq_canonicalize(q);
PGMP_RETURN_MPQ(q);
}
PGMP_PG_FUNCTION(pmpq_in_base)
{
int base;
char *str;
mpq_t q;
base = PG_GETARG_INT32(1);
if (!(base == 0 || (2 <= base && base <= PGMP_MAXBASE_IO)))
{
ereport(ERROR, (
errcode(ERRCODE_INVALID_PARAMETER_VALUE),
errmsg("invalid base for mpq input: %d", base),
errhint("base should be between 2 and %d", PGMP_MAXBASE_IO)));
}
str = TextDatumGetCString(PG_GETARG_POINTER(0));
mpq_init(q);
if (0 != mpq_set_str(q, str, base))
{
const char *ell;
const int maxchars = 50;
ell = (strlen(str) > maxchars) ? "..." : "";
ereport(ERROR, (
errcode(ERRCODE_INVALID_TEXT_REPRESENTATION),
errmsg("invalid input for mpq base %d: \"%.*s%s\"",
base, 50, str, ell)));
}
ERROR_IF_DENOM_ZERO(mpq_denref(q));
mpq_canonicalize(q);
PGMP_RETURN_MPQ(q);
}
PGMP_PG_FUNCTION(pmpq_out)
{
const mpq_t q;
char *buf;
PGMP_GETARG_MPQ(q, 0);
/* Allocate the output buffer manually - see mpmz_out to know why */
buf = palloc(3 /* add sign, slash and null */
+ mpz_sizeinbase(mpq_numref(q), 10)
+ mpz_sizeinbase(mpq_denref(q), 10));
PG_RETURN_CSTRING(mpq_get_str(buf, 10, q));
}
PGMP_PG_FUNCTION(pmpq_out_base)
{
const mpq_t q;
int base;
char *buf;
PGMP_GETARG_MPQ(q, 0);
base = PG_GETARG_INT32(1);
if (!((-36 <= base && base <= -2) ||
(2 <= base && base <= PGMP_MAXBASE_IO)))
{
ereport(ERROR, (
errcode(ERRCODE_INVALID_PARAMETER_VALUE),
errmsg("invalid base for mpq output: %d", base),
errhint("base should be between -36 and -2 or between 2 and %d",
PGMP_MAXBASE_IO)));
}
/* Allocate the output buffer manually - see mpmz_out to know why */
buf = palloc(3 /* add sign, slash and null */
+ mpz_sizeinbase(mpq_numref(q), ABS(base))
+ mpz_sizeinbase(mpq_denref(q), ABS(base)));
PG_RETURN_CSTRING(mpq_get_str(buf, base, q));
}
/*
* Cast functions
*/
static Datum _pmpq_from_long(long in);
PGMP_PG_FUNCTION(pmpq_from_int2)
{
int16 in = PG_GETARG_INT16(0);
return _pmpq_from_long(in);
}
PGMP_PG_FUNCTION(pmpq_from_int4)
{
int32 in = PG_GETARG_INT32(0);
return _pmpq_from_long(in);
}
static Datum
_pmpq_from_long(long in)
{
mpq_t q;
mpz_init_set_si(mpq_numref(q), in);
mpz_init_set_si(mpq_denref(q), 1L);
PGMP_RETURN_MPQ(q);
}
static Datum _pmpq_from_double(double in);
PGMP_PG_FUNCTION(pmpq_from_float4)
{
double in = (double)PG_GETARG_FLOAT4(0);
return _pmpq_from_double(in);
}
PGMP_PG_FUNCTION(pmpq_from_float8)
{
double in = PG_GETARG_FLOAT8(0);
return _pmpq_from_double(in);
}
static Datum
_pmpq_from_double(double in)
{
mpq_t q;
mpq_init(q);
mpq_set_d(q, in);
PGMP_RETURN_MPQ(q);
}
/* to convert from int8 we piggyback all the mess we've made for mpz */
Datum pmpz_from_int8(PG_FUNCTION_ARGS);
PGMP_PG_FUNCTION(pmpq_from_int8)
{
mpq_t q;
mpz_t tmp;
mpz_from_pmpz(tmp,
(pmpz *)DirectFunctionCall1(pmpz_from_int8,
PG_GETARG_DATUM(0)));
/* Make a copy of the num as MPQ will try to realloc on it */
mpz_init_set(mpq_numref(q), tmp);
mpz_init_set_si(mpq_denref(q), 1L);
PGMP_RETURN_MPQ(q);
}
/* To convert from numeric we convert the numeric in str, then work on that */
PGMP_PG_FUNCTION(pmpq_from_numeric)
{
mpq_t q;
char *sn, *pn;
sn = DatumGetCString(DirectFunctionCall1(numeric_out,
PG_GETARG_DATUM(0)));
if ((pn = strchr(sn, '.')))
{
char *sd, *pd;
/* Convert "123.45" into "12345" and produce "100" in the process. */
pd = sd = (char *)palloc(strlen(sn));
*pd++ = '1';
while (pn[1])
{
pn[0] = pn[1];
++pn;
*pd++ = '0';
}
*pd = *pn = '\0';
if (0 != mpz_init_set_str(mpq_numref(q), sn, 10)) {
goto error;
}
mpz_init_set_str(mpq_denref(q), sd, 10);
mpq_canonicalize(q);
}
else {
/* just an integer */
if (0 != mpz_init_set_str(mpq_numref(q), sn, 10)) {
goto error;
}
mpz_init_set_si(mpq_denref(q), 1L);
}
PGMP_RETURN_MPQ(q);
error:
ereport(ERROR, (
errcode(ERRCODE_NUMERIC_VALUE_OUT_OF_RANGE),
errmsg("can't convert numeric value to mpq: \"%s\"", sn)));
PG_RETURN_NULL();
}
PGMP_PG_FUNCTION(pmpq_from_mpz)
{
mpq_t q;
mpz_t tmp;
/* Make a copy of the num as MPQ will try to realloc on it */
PGMP_GETARG_MPZ(tmp, 0);
mpz_init_set(mpq_numref(q), tmp);
mpz_init_set_si(mpq_denref(q), 1L);
PGMP_RETURN_MPQ(q);
}
PGMP_PG_FUNCTION(pmpq_to_mpz)
{
const mpq_t q;
mpz_t z;
PGMP_GETARG_MPQ(q, 0);
mpz_init(z);
mpz_set_q(z, q);
PGMP_RETURN_MPZ(z);
}
#define PMPQ_TO_INT(type) \
\
Datum pmpz_to_ ## type (PG_FUNCTION_ARGS); \
\
PGMP_PG_FUNCTION(pmpq_to_ ## type) \
{ \
const mpq_t q; \
mpz_t z; \
\
PGMP_GETARG_MPQ(q, 0); \
\
mpz_init(z); \
mpz_set_q(z, q); \
\
return DirectFunctionCall1(pmpz_to_ ## type, (Datum)pmpz_from_mpz(z)); \
}
PMPQ_TO_INT(int2)
PMPQ_TO_INT(int4)
PMPQ_TO_INT(int8)
PGMP_PG_FUNCTION(pmpq_to_float4)
{
const mpq_t q;
PGMP_GETARG_MPQ(q, 0);
PG_RETURN_FLOAT4((float4)mpq_get_d(q));
}
PGMP_PG_FUNCTION(pmpq_to_float8)
{
const mpq_t q;
PGMP_GETARG_MPQ(q, 0);
PG_RETURN_FLOAT8((float8)mpq_get_d(q));
}
PGMP_PG_FUNCTION(pmpq_to_numeric)
{
const mpq_t q;
int32 typmod;
unsigned long scale;
mpz_t z;
char *buf;
int sbuf, snum;
PGMP_GETARG_MPQ(q, 0);
typmod = PG_GETARG_INT32(1);
/* Parse precision and scale from the type modifier */
if (typmod >= VARHDRSZ) {
scale = (typmod - VARHDRSZ) & 0xffff;
}
else {
scale = 15;
}
if (scale) {
/* Convert q into a scaled z */
char *cmult;
mpz_t mult;
/* create 10000... with as many 0s as the scale */
cmult = (char *)palloc(scale + 2);
memset(cmult + 1, '0', scale);
cmult[0] = '1';
cmult[scale + 1] = '\0';
mpz_init_set_str(mult, cmult, 10);
pfree(cmult);
mpz_init(z);
mpz_mul(z, mpq_numref(q), mult);
sbuf = mpz_sizeinbase(z, 10); /* size of the output buffer */
mpz_tdiv_q(z, z, mpq_denref(q));
snum = mpz_sizeinbase(z, 10); /* size of the number */
}
else {
/* Just truncate q into an integer */
mpz_init(z);
mpz_set_q(z, q);
sbuf = snum = mpz_sizeinbase(z, 10);
}
/* If the numer is 0, everything is a special case: bail out */
if (mpz_cmp_si(z, 0) == 0) {
return DirectFunctionCall3(numeric_in,
CStringGetDatum("0"),
ObjectIdGetDatum(0), /* unused 2nd value */
Int32GetDatum(typmod));
}
/* convert z into a string */
buf = palloc(sbuf + 3); /* add sign, point and null */
mpz_get_str(buf, 10, z);
if (scale) {
char *end, *p;
/* Left pad with 0s the number if smaller than the buffer */
if (snum < sbuf) {
char *num0 = buf + (buf[0] == '-'); /* start of the num w/o sign */
memmove(num0 + (sbuf - snum), num0, snum + 1);
memset(num0, '0', sbuf - snum);
}
end = buf + strlen(buf);
/* Add the decimal point in the right place */
memmove(end - scale + 1, end - scale, scale + 1);
end[-scale] = '.';
/* delete trailing 0s or they will be used to add extra precision */
if (typmod < VARHDRSZ) { /* scale was not specified */
for (p = end; p > (end - scale) && *p == '0'; --p) {
*p = '\0';
}
/* Don't leave a traliling point */
if (*p == '.') {
*p = '\0';
}
}
}
/* use numeric_in to build the value from the string and to apply the
* typemod (which may result in overflow) */
return DirectFunctionCall3(numeric_in,
CStringGetDatum(buf),
ObjectIdGetDatum(0), /* unused 2nd value */
Int32GetDatum(typmod));
}
/*
* Constructor and accessors to num and den
*/
PGMP_PG_FUNCTION(pmpq_mpz_mpz)
{
const mpz_t num;
const mpz_t den;
mpq_t q;
/* We must take a copy of num and den because they may be modified by
* canonicalize */
PGMP_GETARG_MPZ(num, 0);
PGMP_GETARG_MPZ(den, 1);
ERROR_IF_DENOM_ZERO(den);
/* Put together the input and canonicalize */
mpz_init_set(mpq_numref(q), num);
mpz_init_set(mpq_denref(q), den);
mpq_canonicalize(q);
PGMP_RETURN_MPQ(q);
}
PGMP_PG_FUNCTION(pmpq_int4_int4)
{
int32 num = PG_GETARG_INT32(0);
int32 den = PG_GETARG_INT32(1);
mpq_t q;
/* Put together the input and canonicalize */
mpz_init_set_si(mpq_numref(q), (long)num);
mpz_init_set_si(mpq_denref(q), (long)den);
ERROR_IF_DENOM_ZERO(mpq_denref(q));
mpq_canonicalize(q);
PGMP_RETURN_MPQ(q);
}
PGMP_PG_FUNCTION(pmpq_numeric_numeric)
{
char *sn;
char *sd;
mpq_t q;
sn = DatumGetCString(DirectFunctionCall1(numeric_out, PG_GETARG_DATUM(0)));
if (0 != mpz_init_set_str(mpq_numref(q), sn, 10))
{
ereport(ERROR, (
errcode(ERRCODE_NUMERIC_VALUE_OUT_OF_RANGE),
errmsg("can't handle numeric value at numerator: %s", sn),
errhint("the mpq components should be integers")));
}
sd = DatumGetCString(DirectFunctionCall1(numeric_out, PG_GETARG_DATUM(1)));
if (0 != mpz_init_set_str(mpq_denref(q), sd, 10))
{
ereport(ERROR, (
errcode(ERRCODE_NUMERIC_VALUE_OUT_OF_RANGE),
errmsg("can't handle numeric value at denominator: %s", sd),
errhint("the mpq components should be integers")));
}
ERROR_IF_DENOM_ZERO(mpq_denref(q));
mpq_canonicalize(q);
PGMP_RETURN_MPQ(q);
}
PGMP_PG_FUNCTION(pmpq_num)
{
const mpq_t q;
mpz_t z;
PGMP_GETARG_MPQ(q, 0);
mpz_init_set(z, mpq_numref(q));
PGMP_RETURN_MPZ(z);
}
PGMP_PG_FUNCTION(pmpq_den)
{
const mpq_t q;
mpz_t z;
PGMP_GETARG_MPQ(q, 0);
mpz_init_set(z, mpq_denref(q));
PGMP_RETURN_MPZ(z);
}
|
8 | ./pgmp/src/pmpz_roots.c | /* pmpz_roots -- root extraction functions
*
* Copyright (C) 2011 Daniele Varrazzo
*
* This file is part of the PostgreSQL GMP Module
*
* The PostgreSQL GMP Module is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public License as
* published by the Free Software Foundation; either version 3 of the License,
* or (at your option) any later version.
*
* The PostgreSQL GMP Module is distributed in the hope that it will be
* useful, but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser
* General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with the PostgreSQL GMP Module. If not, see
* http://www.gnu.org/licenses/.
*/
#include "pmpz.h"
#include "pgmp-impl.h"
#include "fmgr.h"
#include "funcapi.h"
#if PG_VERSION_NUM >= 90300
#include <access/htup_details.h> /* for heap_form_tuple */
#endif
/* Functions with a more generic signature are defined in pmpz.arith.c */
#if __GMP_MP_RELEASE >= 40200
PGMP_PG_FUNCTION(pmpz_rootrem)
{
const mpz_t z1;
mpz_t zroot;
mpz_t zrem;
unsigned long n;
PGMP_GETARG_MPZ(z1, 0);
PMPZ_CHECK_NONEG(z1);
PGMP_GETARG_ULONG(n, 1);
PMPZ_CHECK_LONG_POS(n);
mpz_init(zroot);
mpz_init(zrem);
mpz_rootrem (zroot, zrem, z1, n);
PGMP_RETURN_MPZ_MPZ(zroot, zrem);
}
#endif
PGMP_PG_FUNCTION(pmpz_sqrtrem)
{
const mpz_t z1;
mpz_t zroot;
mpz_t zrem;
PGMP_GETARG_MPZ(z1, 0);
mpz_init(zroot);
mpz_init(zrem);
mpz_sqrtrem(zroot, zrem, z1);
PGMP_RETURN_MPZ_MPZ(zroot, zrem);
}
|
9 | ./pgmp/src/pgmp.c | /* pgmp -- PostgreSQL GMP module
*
* Copyright (C) 2011 Daniele Varrazzo
*
* This file is part of the PostgreSQL GMP Module
*
* The PostgreSQL GMP Module is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public License as
* published by the Free Software Foundation; either version 3 of the License,
* or (at your option) any later version.
*
* The PostgreSQL GMP Module is distributed in the hope that it will be
* useful, but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser
* General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with the PostgreSQL GMP Module. If not, see
* http://www.gnu.org/licenses/.
*/
#include <gmp.h>
#include "postgres.h"
#include "fmgr.h"
#include "pgmp-impl.h"
PG_MODULE_MAGIC;
void _PG_init(void);
void _PG_fini(void);
static void *_pgmp_alloc(size_t alloc_size);
static void *_pgmp_realloc(void *ptr, size_t old_size, size_t new_size);
static void _pgmp_free(void *ptr, size_t size);
/* A couple of constant limbs used to create constant mp? data
* from the content of varlena data */
const mp_limb_t _pgmp_limb_0 = 0;
const mp_limb_t _pgmp_limb_1 = 1;
/*
* Module initialization and cleanup
*/
void
_PG_init(void)
{
/* A vow to the gods of the memory allocation */
mp_set_memory_functions(
_pgmp_alloc, _pgmp_realloc, _pgmp_free);
}
void
_PG_fini(void)
{
}
/*
* GMP custom allocation functions using PostgreSQL memory management.
*
* In order to store data into the database, the structure must be contiguous
* in memory. GMP instead allocated the limbs dynamically. This means that to
* convert from mpz_p to the varlena a memcpy would be required.
*
* But we don't like memcpy... So we allocate enough space to add the varlena
* header and we return an offsetted pointer to GMP, so that we can always
* scrubble a varlena header in front of the limbs and just ask the database
* to store the result.
*/
static void *
_pgmp_alloc(size_t size)
{
return PGMP_MAX_HDRSIZE + (char *)palloc(size + PGMP_MAX_HDRSIZE);
}
static void *
_pgmp_realloc(void *ptr, size_t old_size, size_t new_size)
{
return PGMP_MAX_HDRSIZE + (char *)repalloc(
(char *)ptr - PGMP_MAX_HDRSIZE,
new_size + PGMP_MAX_HDRSIZE);
}
static void
_pgmp_free(void *ptr, size_t size)
{
pfree((char *)ptr - PGMP_MAX_HDRSIZE);
}
/* Return the version of the library as an integer
*
* Parse the format from the variable gmp_version instead of using the macro
* __GNU_PG_VERSION* in order to detect the runtime version instead of the
* version pgmp was compiled against (although if I'm not entirely sure it is
* working as expected).
*/
PGMP_PG_FUNCTION(pgmp_gmp_version)
{
int maj = 0, min = 0, patch = 0;
const char *p;
/* Parse both A.B.C and A.B formats. */
maj = atoi(gmp_version);
if (NULL == (p = strchr(gmp_version, '.'))) {
goto end;
}
min = atoi(p + 1);
if (NULL == (p = strchr(p + 1, '.'))) {
goto end;
}
patch = atoi(p + 1);
end:
PG_RETURN_INT32(maj * 10000 + min * 100 + patch);
}
|
10 | ./pgmp/src/pmpq_arith.c | /* pmpq_arith -- mpq arithmetic functions
*
* Copyright (C) 2011 Daniele Varrazzo
*
* This file is part of the PostgreSQL GMP Module
*
* The PostgreSQL GMP Module is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public License as
* published by the Free Software Foundation; either version 3 of the License,
* or (at your option) any later version.
*
* The PostgreSQL GMP Module is distributed in the hope that it will be
* useful, but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser
* General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with the PostgreSQL GMP Module. If not, see
* http://www.gnu.org/licenses/.
*/
#include "pmpq.h"
#include "pmpz.h"
#include "pgmp-impl.h"
#include "fmgr.h"
#include "access/hash.h" /* for hash_any */
/*
* Unary operators
*/
PGMP_PG_FUNCTION(pmpq_uplus)
{
const pmpq *pq1;
pmpq *res;
pq1 = PGMP_GETARG_PMPQ(0);
res = (pmpq *)palloc(VARSIZE(pq1));
memcpy(res, pq1, VARSIZE(pq1));
PG_RETURN_POINTER(res);
}
#define PMPQ_UN(op, CHECK) \
\
PGMP_PG_FUNCTION(pmpq_ ## op) \
{ \
const mpq_t q; \
mpq_t qf; \
\
PGMP_GETARG_MPQ(q, 0); \
CHECK(q); \
\
mpq_init(qf); \
mpq_ ## op (qf, q); \
\
PGMP_RETURN_MPQ(qf); \
}
PMPQ_UN(neg, PMPQ_NO_CHECK)
PMPQ_UN(abs, PMPQ_NO_CHECK)
PMPQ_UN(inv, PMPQ_CHECK_DIV0)
/*
* Binary operators
*/
/* Template to generate binary operators */
#define PMPQ_OP(op, CHECK2) \
\
PGMP_PG_FUNCTION(pmpq_ ## op) \
{ \
const mpq_t q1; \
const mpq_t q2; \
mpq_t qf; \
\
PGMP_GETARG_MPQ(q1, 0); \
PGMP_GETARG_MPQ(q2, 1); \
CHECK2(q2); \
\
mpq_init(qf); \
mpq_ ## op (qf, q1, q2); \
\
PGMP_RETURN_MPQ(qf); \
}
PMPQ_OP(add, PMPQ_NO_CHECK)
PMPQ_OP(sub, PMPQ_NO_CHECK)
PMPQ_OP(mul, PMPQ_NO_CHECK)
PMPQ_OP(div, PMPQ_CHECK_DIV0)
/* Functions defined on bit count */
#define PMPQ_BIT(op) \
\
PGMP_PG_FUNCTION(pmpq_ ## op) \
{ \
const mpq_t q; \
unsigned long b; \
mpq_t qf; \
\
PGMP_GETARG_MPQ(q, 0); \
PGMP_GETARG_ULONG(b, 1); \
\
mpq_init(qf); \
mpq_ ## op (qf, q, b); \
\
PGMP_RETURN_MPQ(qf); \
}
PMPQ_BIT(mul_2exp)
PMPQ_BIT(div_2exp)
/*
* Comparison operators
*/
PGMP_PG_FUNCTION(pmpq_cmp)
{
const mpq_t q1;
const mpq_t q2;
PGMP_GETARG_MPQ(q1, 0);
PGMP_GETARG_MPQ(q2, 1);
PG_RETURN_INT32(mpq_cmp(q1, q2));
}
#define PMPQ_CMP_EQ(op, rel) \
\
PGMP_PG_FUNCTION(pmpq_ ## op) \
{ \
const mpq_t q1; \
const mpq_t q2; \
\
PGMP_GETARG_MPQ(q1, 0); \
PGMP_GETARG_MPQ(q2, 1); \
\
PG_RETURN_BOOL(mpq_equal(q1, q2) rel 0); \
}
PMPQ_CMP_EQ(eq, !=) /* note that the operators are reversed */
PMPQ_CMP_EQ(ne, ==)
#define PMPQ_CMP(op, rel) \
\
PGMP_PG_FUNCTION(pmpq_ ## op) \
{ \
const mpq_t q1; \
const mpq_t q2; \
\
PGMP_GETARG_MPQ(q1, 0); \
PGMP_GETARG_MPQ(q2, 1); \
\
PG_RETURN_BOOL(mpq_cmp(q1, q2) rel 0); \
}
PMPQ_CMP(gt, >)
PMPQ_CMP(ge, >=)
PMPQ_CMP(lt, <)
PMPQ_CMP(le, <=)
/* The hash of an integer mpq is the same of the same number as mpz.
* This allows cross-type hash joins with mpz and builtins.
*/
PGMP_PG_FUNCTION(pmpq_hash)
{
const mpq_t q;
Datum nhash;
PGMP_GETARG_MPQ(q, 0);
nhash = pmpz_get_hash(mpq_numref(q));
if (mpz_cmp_si(mpq_denref(q), 1L) == 0) {
return nhash;
}
PG_RETURN_INT32(
DatumGetInt32(nhash) ^ hash_any(
(unsigned char *)LIMBS(mpq_denref(q)),
NLIMBS(mpq_denref(q)) * sizeof(mp_limb_t)));
}
/* limit_den */
static void limit_den(mpq_ptr q_out, mpq_srcptr q_in, mpz_srcptr max_den);
PGMP_PG_FUNCTION(pmpq_limit_den)
{
const mpq_t q_in;
const mpz_t max_den;
mpq_t q_out;
PGMP_GETARG_MPQ(q_in, 0);
if (PG_NARGS() >= 2) {
PGMP_GETARG_MPZ(max_den, 1);
}
else {
mpz_init_set_si((mpz_ptr)max_den, 1000000);
}
if (mpz_cmp_si(max_den, 1) < 0)
{
ereport(ERROR, ( \
errcode(ERRCODE_INVALID_PARAMETER_VALUE), \
errmsg("max_den should be at least 1"))); \
}
mpq_init(q_out);
limit_den(q_out, q_in, max_den);
PGMP_RETURN_MPQ(q_out);
}
/*
* Set q_out to the closest fraction to q_in with denominator at most max_den
*
* Ported from Python library: see
* http://hg.python.org/cpython/file/v2.7/Lib/fractions.py#l206
* for implementation notes.
*/
static void
limit_den(mpq_ptr q_out, mpq_srcptr q_in, mpz_srcptr max_den)
{
mpz_t p0, q0, p1, q1;
mpz_t n, d;
mpz_t a, q2;
mpz_t k;
mpq_t b1, b2;
mpq_t ab1, ab2;
if (mpz_cmp(mpq_denref(q_in), max_den) <= 0) {
mpq_set(q_out, q_in);
return;
}
/* p0, q0, p1, q1 = 0, 1, 1, 0 */
mpz_init_set_si(p0, 0);
mpz_init_set_si(q0, 1);
mpz_init_set_si(p1, 1);
mpz_init_set_si(q1, 0);
/* n, d = self._numerator, self._denominator */
mpz_init_set(n, mpq_numref(q_in));
mpz_init_set(d, mpq_denref(q_in));
mpz_init(a);
mpz_init(q2);
for (;;) {
/* a = n // d */
mpz_tdiv_q(a, n, d);
/* q2 = q0+a*q1 */
mpz_set(q2, q0);
mpz_addmul(q2, a, q1);
if (mpz_cmp(q2, max_den) > 0) { break; }
/* p0, q0, p1, q1 = p1, q1, p0+a*p1, q2 */
mpz_swap(p0, p1);
mpz_addmul(p1, a, p0);
mpz_swap(q0, q1);
mpz_swap(q1, q2);
/* n, d = d, n-a*d */
mpz_swap(n, d);
mpz_submul(d, a, n);
}
/* k = (max_denominator - q0) // q1 */
mpz_init(k);
mpz_sub(k, max_den, q0);
mpz_tdiv_q(k, k, q1);
/* bound1 = Fraction(p0+k*p1, q0+k*q1) */
mpq_init(b1);
mpz_addmul(p0, k, p1);
mpz_set(mpq_numref(b1), p0);
mpz_addmul(q0, k, q1);
mpz_set(mpq_denref(b1), q0);
mpq_canonicalize(b1);
/* bound2 = Fraction(p1, q1) */
mpq_init(b2);
mpz_set(mpq_numref(b2), p1);
mpz_set(mpq_denref(b2), q1);
mpq_canonicalize(b2);
/* if abs(bound2 - self) <= abs(bound1 - self): */
mpq_init(ab1);
mpq_sub(ab1, b1, q_in);
mpq_abs(ab1, ab1);
mpq_init(ab2);
mpq_sub(ab2, b2, q_in);
mpq_abs(ab2, ab2);
if (mpq_cmp(ab2, ab1) <= 0) {
/* return bound2 */
mpq_set(q_out, b2);
}
else {
/* return bound1 */
mpq_set(q_out, b1);
}
}
|
11 | ./pgmp/src/pmpz_rand.c | /* pmpz_rand -- mpz random numbers
*
* Copyright (C) 2011 Daniele Varrazzo
*
* This file is part of the PostgreSQL GMP Module
*
* The PostgreSQL GMP Module is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public License as
* published by the Free Software Foundation; either version 3 of the License,
* or (at your option) any later version.
*
* The PostgreSQL GMP Module is distributed in the hope that it will be
* useful, but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser
* General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with the PostgreSQL GMP Module. If not, see
* http://www.gnu.org/licenses/.
*/
#include "pmpz.h"
#include "pgmp-impl.h"
#include "fmgr.h"
#include "utils/memutils.h" /* for TopMemoryContext */
/* The state of the random number generator.
*
* Currently this variable is reset when the library is loaded: this means at
* every session but would break if the library starts being preloaded. So,
* TODO: check if there is a way to explicitly allocate this structure per
* session.
*/
gmp_randstate_t *pgmp_randstate;
/* Clear the random state if set
*
* This macro should be invoked with the TopMemoryContext set as current
* memory context
*/
#define PGMP_CLEAR_RANDSTATE \
do { \
if (pgmp_randstate) { \
gmp_randclear(*pgmp_randstate); \
pfree(pgmp_randstate); \
pgmp_randstate = NULL; \
} \
} while (0)
/* Exit with an error if the random state is not set */
#define PGMP_CHECK_RANDSTATE \
do { \
if (!pgmp_randstate) { \
ereport(ERROR, ( \
errcode(ERRCODE_INVALID_PARAMETER_VALUE), \
errmsg("random state not initialized") )); \
} \
} while (0)
/*
* Random state initialization
*/
#define PGMP_RANDINIT(f, INIT) \
\
PGMP_PG_FUNCTION(pgmp_ ## f) \
{ \
gmp_randstate_t *state; \
MemoryContext oldctx; \
\
/* palloc and init of the global variable should happen */ \
/* in the global memory context. */ \
oldctx = MemoryContextSwitchTo(TopMemoryContext); \
\
state = palloc(sizeof(gmp_randstate_t)); \
INIT(f); \
\
/* set the global variable to the initialized state */ \
PGMP_CLEAR_RANDSTATE; \
pgmp_randstate = state; \
\
MemoryContextSwitchTo(oldctx); \
\
PG_RETURN_NULL(); \
}
#define PGMP_RANDINIT_NOARG(f) gmp_ ## f (*state)
PGMP_RANDINIT(randinit_default, PGMP_RANDINIT_NOARG)
#if __GMP_MP_RELEASE >= 40200
PGMP_RANDINIT(randinit_mt, PGMP_RANDINIT_NOARG)
#endif
#define PGMP_RANDINIT_ACE(f) \
do { \
const mpz_t a; \
unsigned long c; \
mp_bitcnt_t e; \
\
PGMP_GETARG_MPZ(a, 0); \
PGMP_GETARG_ULONG(c, 1); \
PGMP_GETARG_ULONG(e, 2); \
\
gmp_ ## f (*state, a, c, e); \
} while (0)
PGMP_RANDINIT(randinit_lc_2exp, PGMP_RANDINIT_ACE)
#define PGMP_RANDINIT_SIZE(f) \
do { \
mp_bitcnt_t size; \
\
PGMP_GETARG_ULONG(size, 0); \
\
if (!gmp_ ## f (*state, size)) { \
ereport(ERROR, ( \
errcode(ERRCODE_INVALID_PARAMETER_VALUE), \
errmsg("failed to initialized random state with size %lu", \
size) )); \
} \
} while (0)
PGMP_RANDINIT(randinit_lc_2exp_size, PGMP_RANDINIT_SIZE)
PGMP_PG_FUNCTION(pgmp_randseed)
{
const mpz_t seed;
MemoryContext oldctx;
PGMP_CHECK_RANDSTATE;
PGMP_GETARG_MPZ(seed, 0);
/* Switch to the global memory cx in case gmp_randseed allocates */
oldctx = MemoryContextSwitchTo(TopMemoryContext);
gmp_randseed(*pgmp_randstate, seed);
MemoryContextSwitchTo(oldctx);
PG_RETURN_NULL();
}
/*
* Random numbers functions
*/
#define PMPZ_RAND_BITCNT(f) \
\
PGMP_PG_FUNCTION(pmpz_ ## f) \
{ \
unsigned long n; \
mpz_t ret; \
\
PGMP_CHECK_RANDSTATE; \
\
PGMP_GETARG_ULONG(n, 0); \
\
mpz_init(ret); \
mpz_ ## f (ret, *pgmp_randstate, n); \
\
PGMP_RETURN_MPZ(ret); \
}
PMPZ_RAND_BITCNT(urandomb)
PMPZ_RAND_BITCNT(rrandomb)
PGMP_PG_FUNCTION(pmpz_urandomm)
{
const mpz_t n;
mpz_t ret;
PGMP_CHECK_RANDSTATE;
PGMP_GETARG_MPZ(n, 0);
mpz_init(ret);
mpz_urandomm(ret, *pgmp_randstate, n);
PGMP_RETURN_MPZ(ret);
}
|
12 | ./pgmp/src/pmpz_arith.c | /* pmpz_arith -- mpz arithmetic functions
*
* Copyright (C) 2011 Daniele Varrazzo
*
* This file is part of the PostgreSQL GMP Module
*
* The PostgreSQL GMP Module is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public License as
* published by the Free Software Foundation; either version 3 of the License,
* or (at your option) any later version.
*
* The PostgreSQL GMP Module is distributed in the hope that it will be
* useful, but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser
* General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with the PostgreSQL GMP Module. If not, see
* http://www.gnu.org/licenses/.
*/
#include "pmpz.h"
#include "pgmp-impl.h"
#include "fmgr.h"
#include "funcapi.h"
#include "access/hash.h" /* for hash_any */
#if PG_VERSION_NUM >= 90300
#include <access/htup_details.h> /* for heap_form_tuple */
#endif
/*
* Unary operators
*/
PGMP_PG_FUNCTION(pmpz_uplus)
{
const pmpz *pz1;
pmpz *res;
pz1 = PGMP_GETARG_PMPZ(0);
res = (pmpz *)palloc(VARSIZE(pz1));
memcpy(res, pz1, VARSIZE(pz1));
PG_RETURN_POINTER(res);
}
/* Template to generate unary functions */
#define PMPZ_UN(op, CHECK) \
\
PGMP_PG_FUNCTION(pmpz_ ## op) \
{ \
const mpz_t z1; \
mpz_t zf; \
\
PGMP_GETARG_MPZ(z1, 0); \
CHECK(z1); \
\
mpz_init(zf); \
mpz_ ## op (zf, z1); \
\
PGMP_RETURN_MPZ(zf); \
}
PMPZ_UN(neg, PMPZ_NO_CHECK)
PMPZ_UN(abs, PMPZ_NO_CHECK)
PMPZ_UN(sqrt, PMPZ_CHECK_NONEG)
PMPZ_UN(com, PMPZ_NO_CHECK)
/*
* Binary operators
*/
/* Operators defined (mpz, mpz) -> mpz.
*
* CHECK2 is a check performed on the 2nd argument.
*/
#define PMPZ_OP(op, CHECK2) \
\
PGMP_PG_FUNCTION(pmpz_ ## op) \
{ \
const mpz_t z1; \
const mpz_t z2; \
mpz_t zf; \
\
PGMP_GETARG_MPZ(z1, 0); \
PGMP_GETARG_MPZ(z2, 1); \
CHECK2(z2); \
\
mpz_init(zf); \
mpz_ ## op (zf, z1, z2); \
\
PGMP_RETURN_MPZ(zf); \
}
PMPZ_OP(add, PMPZ_NO_CHECK)
PMPZ_OP(sub, PMPZ_NO_CHECK)
PMPZ_OP(mul, PMPZ_NO_CHECK)
PMPZ_OP(tdiv_q, PMPZ_CHECK_DIV0)
PMPZ_OP(tdiv_r, PMPZ_CHECK_DIV0)
PMPZ_OP(cdiv_q, PMPZ_CHECK_DIV0)
PMPZ_OP(cdiv_r, PMPZ_CHECK_DIV0)
PMPZ_OP(fdiv_q, PMPZ_CHECK_DIV0)
PMPZ_OP(fdiv_r, PMPZ_CHECK_DIV0)
PMPZ_OP(divexact, PMPZ_CHECK_DIV0)
PMPZ_OP(and, PMPZ_NO_CHECK)
PMPZ_OP(ior, PMPZ_NO_CHECK)
PMPZ_OP(xor, PMPZ_NO_CHECK)
PMPZ_OP(gcd, PMPZ_NO_CHECK)
PMPZ_OP(lcm, PMPZ_NO_CHECK)
PMPZ_OP(remove, PMPZ_NO_CHECK) /* TODO: return value not returned */
/* Operators defined (mpz, mpz) -> (mpz, mpz). */
#define PMPZ_OP2(op, CHECK2) \
\
PGMP_PG_FUNCTION(pmpz_ ## op) \
{ \
const mpz_t z1; \
const mpz_t z2; \
mpz_t zf1; \
mpz_t zf2; \
\
PGMP_GETARG_MPZ(z1, 0); \
PGMP_GETARG_MPZ(z2, 1); \
CHECK2(z2); \
\
mpz_init(zf1); \
mpz_init(zf2); \
mpz_ ## op (zf1, zf2, z1, z2); \
\
PGMP_RETURN_MPZ_MPZ(zf1, zf2); \
}
PMPZ_OP2(tdiv_qr, PMPZ_CHECK_DIV0)
PMPZ_OP2(cdiv_qr, PMPZ_CHECK_DIV0)
PMPZ_OP2(fdiv_qr, PMPZ_CHECK_DIV0)
/* Functions defined on unsigned long */
#define PMPZ_OP_UL(op, CHECK1, CHECK2) \
\
PGMP_PG_FUNCTION(pmpz_ ## op) \
{ \
const mpz_t z; \
unsigned long b; \
mpz_t zf; \
\
PGMP_GETARG_MPZ(z, 0); \
CHECK1(z); \
\
PGMP_GETARG_ULONG(b, 1); \
CHECK2(b); \
\
mpz_init(zf); \
mpz_ ## op (zf, z, b); \
\
PGMP_RETURN_MPZ(zf); \
}
PMPZ_OP_UL(pow_ui, PMPZ_NO_CHECK, PMPZ_NO_CHECK)
PMPZ_OP_UL(root, PMPZ_CHECK_NONEG, PMPZ_CHECK_LONG_POS)
PMPZ_OP_UL(bin_ui, PMPZ_NO_CHECK, PMPZ_CHECK_LONG_NONEG)
/* Functions defined on bit count
*
* mp_bitcnt_t is defined as unsigned long.
*/
#define PMPZ_OP_BITCNT PMPZ_OP_UL
PMPZ_OP_BITCNT(mul_2exp, PMPZ_NO_CHECK, PMPZ_NO_CHECK)
PMPZ_OP_BITCNT(tdiv_q_2exp, PMPZ_NO_CHECK, PMPZ_NO_CHECK)
PMPZ_OP_BITCNT(tdiv_r_2exp, PMPZ_NO_CHECK, PMPZ_NO_CHECK)
PMPZ_OP_BITCNT(cdiv_q_2exp, PMPZ_NO_CHECK, PMPZ_NO_CHECK)
PMPZ_OP_BITCNT(cdiv_r_2exp, PMPZ_NO_CHECK, PMPZ_NO_CHECK)
PMPZ_OP_BITCNT(fdiv_q_2exp, PMPZ_NO_CHECK, PMPZ_NO_CHECK)
PMPZ_OP_BITCNT(fdiv_r_2exp, PMPZ_NO_CHECK, PMPZ_NO_CHECK)
/* Unary predicates */
#define PMPZ_PRED(pred) \
\
PGMP_PG_FUNCTION(pmpz_ ## pred) \
{ \
const mpz_t op; \
\
PGMP_GETARG_MPZ(op, 0); \
\
PG_RETURN_BOOL(mpz_ ## pred ## _p(op)); \
}
PMPZ_PRED(even)
PMPZ_PRED(odd)
PMPZ_PRED(perfect_power)
PMPZ_PRED(perfect_square)
/*
* Comparison operators
*/
PGMP_PG_FUNCTION(pmpz_cmp)
{
const mpz_t z1;
const mpz_t z2;
PGMP_GETARG_MPZ(z1, 0);
PGMP_GETARG_MPZ(z2, 1);
PG_RETURN_INT32(mpz_cmp(z1, z2));
}
#define PMPZ_CMP(op, rel) \
\
PGMP_PG_FUNCTION(pmpz_ ## op) \
{ \
const mpz_t z1; \
const mpz_t z2; \
\
PGMP_GETARG_MPZ(z1, 0); \
PGMP_GETARG_MPZ(z2, 1); \
\
PG_RETURN_BOOL(mpz_cmp(z1, z2) rel 0); \
}
PMPZ_CMP(eq, ==)
PMPZ_CMP(ne, !=)
PMPZ_CMP(gt, >)
PMPZ_CMP(ge, >=)
PMPZ_CMP(lt, <)
PMPZ_CMP(le, <=)
/* The hash of an mpz fitting into a int64 is the same of the PG builtin.
* This allows cross-type hash joins int2/int4/int8.
*/
PGMP_PG_FUNCTION(pmpz_hash)
{
const mpz_t z;
PGMP_GETARG_MPZ(z, 0);
return pmpz_get_hash(z);
}
Datum
pmpz_get_hash(mpz_srcptr z)
{
int64 z64;
if (0 == pmpz_get_int64(z, &z64)) {
return DirectFunctionCall1(hashint8, Int64GetDatumFast(z64));
}
PG_RETURN_INT32(hash_any(
(unsigned char *)LIMBS(z),
NLIMBS(z) * sizeof(mp_limb_t)));
}
/*
* Misc functions... each one has its own signature, sigh.
*/
PGMP_PG_FUNCTION(pmpz_sgn)
{
const mpz_t n;
PGMP_GETARG_MPZ(n, 0);
PG_RETURN_INT32(mpz_sgn(n));
}
PGMP_PG_FUNCTION(pmpz_divisible)
{
const mpz_t n;
const mpz_t d;
PGMP_GETARG_MPZ(n, 0);
PGMP_GETARG_MPZ(d, 1);
/* GMP 4.1 doesn't guard for zero */
#if __GMP_MP_RELEASE < 40200
if (UNLIKELY(MPZ_IS_ZERO(d))) {
PG_RETURN_BOOL(MPZ_IS_ZERO(n));
}
#endif
PG_RETURN_BOOL(mpz_divisible_p(n, d));
}
PGMP_PG_FUNCTION(pmpz_divisible_2exp)
{
const mpz_t n;
mp_bitcnt_t b;
PGMP_GETARG_MPZ(n, 0);
PGMP_GETARG_ULONG(b, 1);
PG_RETURN_BOOL(mpz_divisible_2exp_p(n, b));
}
PGMP_PG_FUNCTION(pmpz_congruent)
{
const mpz_t n;
const mpz_t c;
const mpz_t d;
PGMP_GETARG_MPZ(n, 0);
PGMP_GETARG_MPZ(c, 1);
PGMP_GETARG_MPZ(d, 2);
/* GMP 4.1 doesn't guard for zero */
#if __GMP_MP_RELEASE < 40200
if (UNLIKELY(MPZ_IS_ZERO(d))) {
PG_RETURN_BOOL(0 == mpz_cmp(n, c));
}
#endif
PG_RETURN_BOOL(mpz_congruent_p(n, c, d));
}
PGMP_PG_FUNCTION(pmpz_congruent_2exp)
{
const mpz_t n;
const mpz_t c;
mp_bitcnt_t b;
PGMP_GETARG_MPZ(n, 0);
PGMP_GETARG_MPZ(c, 1);
PGMP_GETARG_ULONG(b, 2);
PG_RETURN_BOOL(mpz_congruent_2exp_p(n, c, b));
}
PGMP_PG_FUNCTION(pmpz_powm)
{
const mpz_t base;
const mpz_t exp;
const mpz_t mod;
mpz_t zf;
PGMP_GETARG_MPZ(base, 0);
PGMP_GETARG_MPZ(exp, 1);
PMPZ_CHECK_NONEG(exp);
PGMP_GETARG_MPZ(mod, 2);
PMPZ_CHECK_DIV0(mod);
mpz_init(zf);
mpz_powm(zf, base, exp, mod);
PGMP_RETURN_MPZ(zf);
}
|
13 | ./pgmp/src/pmpz.c | /* pmpz -- PostgreSQL data type for GMP mpz
*
* Copyright (C) 2011 Daniele Varrazzo
*
* This file is part of the PostgreSQL GMP Module
*
* The PostgreSQL GMP Module is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public License as
* published by the Free Software Foundation; either version 3 of the License,
* or (at your option) any later version.
*
* The PostgreSQL GMP Module is distributed in the hope that it will be
* useful, but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser
* General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with the PostgreSQL GMP Module. If not, see
* http://www.gnu.org/licenses/.
*/
#include "pmpz.h"
#include "pgmp-impl.h"
#include "fmgr.h"
/* To be referred to to represent the zero */
extern const mp_limb_t _pgmp_limb_0;
/*
* Create a pmpz structure from the content of a mpz.
*
* The function relies on the limbs being allocated using the GMP custom
* allocator: such allocator leaves PGMP_MAX_HDRSIZE bytes *before* the
* returned pointer. We scrubble that area prepending the pmpz header.
*/
pmpz *
pmpz_from_mpz(mpz_srcptr z)
{
pmpz *res;
int size = SIZ(z);
res = (pmpz *)((char *)LIMBS(z) - PMPZ_HDRSIZE);
if (LIKELY(0 != size))
{
size_t slimbs;
int sign;
if (size > 0) {
slimbs = size * sizeof(mp_limb_t);
sign = 0;
}
else {
slimbs = -size * sizeof(mp_limb_t);
sign = PMPZ_SIGN_MASK;
}
SET_VARSIZE(res, PMPZ_HDRSIZE + slimbs);
res->mdata = sign; /* implicit version: 0 */
}
else
{
/* In the zero representation there are no limbs */
SET_VARSIZE(res, PMPZ_HDRSIZE);
res->mdata = 0; /* version: 0 */
}
return res;
}
/*
* Initialize a mpz from the content of a datum
*
* NOTE: the function takes a pointer to a const and changes the structure.
* This allows to define the structure as const in the calling function and
* avoid the risk to change it inplace, which may corrupt the database data.
*
* The structure populated doesn't own the pointed data, so it must not be
* changed in any way and must not be cleared.
*/
void
mpz_from_pmpz(mpz_srcptr z, const pmpz *pz)
{
int nlimbs;
mpz_ptr wz;
if (UNLIKELY(0 != (PMPZ_VERSION(pz)))) {
ereport(ERROR, (
errcode(ERRCODE_DATA_EXCEPTION),
errmsg("unsupported mpz version: %d", PMPZ_VERSION(pz))));
}
/* discard the const qualifier */
wz = (mpz_ptr)z;
nlimbs = (VARSIZE(pz) - PMPZ_HDRSIZE) / sizeof(mp_limb_t);
if (LIKELY(nlimbs != 0))
{
ALLOC(wz) = nlimbs;
SIZ(wz) = PMPZ_NEGATIVE(pz) ? -nlimbs : nlimbs;
LIMBS(wz) = (mp_limb_t *)pz->data;
}
else
{
/* in the datum there is just the varlena header
* so let's just refer to some static const */
ALLOC(wz) = 1;
SIZ(wz) = 0;
LIMBS(wz) = (mp_limb_t *)&_pgmp_limb_0;
}
}
|
14 | ./pgmp/src/pmpz_theor.c | /* pmpz_theor -- number theoretic functions
*
* Copyright (C) 2011 Daniele Varrazzo
*
* This file is part of the PostgreSQL GMP Module
*
* The PostgreSQL GMP Module is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public License as
* published by the Free Software Foundation; either version 3 of the License,
* or (at your option) any later version.
*
* The PostgreSQL GMP Module is distributed in the hope that it will be
* useful, but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser
* General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with the PostgreSQL GMP Module. If not, see
* http://www.gnu.org/licenses/.
*/
#include "pmpz.h"
#include "pgmp-impl.h"
#include "fmgr.h"
#include "funcapi.h"
#if PG_VERSION_NUM >= 90300
#include <access/htup_details.h> /* for heap_form_tuple */
#endif
/* Function with a more generic signature are defined in pmpz.arith.c */
PGMP_PG_FUNCTION(pmpz_probab_prime_p)
{
const mpz_t z1;
int reps;
PGMP_GETARG_MPZ(z1, 0);
reps = PG_GETARG_INT32(1);
PG_RETURN_INT32(mpz_probab_prime_p(z1, reps));
}
PGMP_PG_FUNCTION(pmpz_nextprime)
{
const mpz_t z1;
mpz_t zf;
PGMP_GETARG_MPZ(z1, 0);
mpz_init(zf);
#if __GMP_MP_RELEASE < 40300
if (UNLIKELY(mpz_sgn(z1) < 0)) {
mpz_set_ui(zf, 2);
}
else
#endif
{
mpz_nextprime(zf, z1);
}
PGMP_RETURN_MPZ(zf);
}
PGMP_PG_FUNCTION(pmpz_gcdext)
{
const mpz_t z1;
const mpz_t z2;
mpz_t zf;
mpz_t zs;
mpz_t zt;
PGMP_GETARG_MPZ(z1, 0);
PGMP_GETARG_MPZ(z2, 1);
mpz_init(zf);
mpz_init(zs);
mpz_init(zt);
mpz_gcdext(zf, zs, zt, z1, z2);
PGMP_RETURN_MPZ_MPZ_MPZ(zf, zs, zt);
}
PGMP_PG_FUNCTION(pmpz_invert)
{
const mpz_t z1;
const mpz_t z2;
mpz_t zf;
int ret;
PGMP_GETARG_MPZ(z1, 0);
PGMP_GETARG_MPZ(z2, 1);
mpz_init(zf);
ret = mpz_invert(zf, z1, z2);
if (ret != 0) {
PGMP_RETURN_MPZ(zf);
}
else {
PG_RETURN_NULL();
}
}
#define PMPZ_INT32(f) \
\
PGMP_PG_FUNCTION(pmpz_ ## f) \
{ \
const mpz_t z1; \
const mpz_t z2; \
\
PGMP_GETARG_MPZ(z1, 0); \
PGMP_GETARG_MPZ(z2, 1); \
\
PG_RETURN_INT32(mpz_ ## f (z1, z2)); \
}
PMPZ_INT32(jacobi)
PMPZ_INT32(legendre)
PMPZ_INT32(kronecker)
#define PMPZ_ULONG(f) \
\
PGMP_PG_FUNCTION(pmpz_ ## f) \
{ \
unsigned long op; \
mpz_t ret; \
\
PGMP_GETARG_ULONG(op, 0); \
\
mpz_init(ret); \
mpz_ ## f (ret, op); \
\
PGMP_RETURN_MPZ(ret); \
}
PMPZ_ULONG(fac_ui)
PMPZ_ULONG(fib_ui)
PMPZ_ULONG(lucnum_ui)
#define PMPZ_ULONG_MPZ2(f) \
\
PGMP_PG_FUNCTION(pmpz_ ## f) \
{ \
unsigned long op; \
mpz_t ret1; \
mpz_t ret2; \
\
PGMP_GETARG_ULONG(op, 0); \
\
mpz_init(ret1); \
mpz_init(ret2); \
mpz_ ## f (ret1, ret2, op); \
\
PGMP_RETURN_MPZ_MPZ(ret1, ret2); \
}
PMPZ_ULONG_MPZ2(fib2_ui)
PMPZ_ULONG_MPZ2(lucnum2_ui)
|
15 | ./pgmp/src/pmpz_io.c | /* pmpz_io -- mpz Input/Output functions
*
* Copyright (C) 2011 Daniele Varrazzo
*
* This file is part of the PostgreSQL GMP Module
*
* The PostgreSQL GMP Module is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public License as
* published by the Free Software Foundation; either version 3 of the License,
* or (at your option) any later version.
*
* The PostgreSQL GMP Module is distributed in the hope that it will be
* useful, but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser
* General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with the PostgreSQL GMP Module. If not, see
* http://www.gnu.org/licenses/.
*/
#include "pmpz.h"
#include "pgmp-impl.h"
#include "fmgr.h"
#include "utils/builtins.h" /* for numeric_out */
#include <math.h> /* for isinf, isnan */
/*
* Input/Output functions
*/
PGMP_PG_FUNCTION(pmpz_in)
{
char *str;
mpz_t z;
str = PG_GETARG_CSTRING(0);
if (0 != mpz_init_set_str(z, str, 0))
{
const char *ell;
const int maxchars = 50;
ell = (strlen(str) > maxchars) ? "..." : "";
ereport(ERROR, (
errcode(ERRCODE_INVALID_TEXT_REPRESENTATION),
errmsg("invalid input for mpz: \"%.*s%s\"",
maxchars, str, ell)));
}
PGMP_RETURN_MPZ(z);
}
PGMP_PG_FUNCTION(pmpz_in_base)
{
int base;
char *str;
mpz_t z;
base = PG_GETARG_INT32(1);
if (!(base == 0 || (2 <= base && base <= PGMP_MAXBASE_IO)))
{
ereport(ERROR, (
errcode(ERRCODE_INVALID_PARAMETER_VALUE),
errmsg("invalid base for mpz input: %d", base),
errhint("base should be between 2 and %d", PGMP_MAXBASE_IO)));
}
str = TextDatumGetCString(PG_GETARG_POINTER(0));
if (0 != mpz_init_set_str(z, str, base))
{
const char *ell;
const int maxchars = 50;
ell = (strlen(str) > maxchars) ? "..." : "";
ereport(ERROR, (
errcode(ERRCODE_INVALID_TEXT_REPRESENTATION),
errmsg("invalid input for mpz base %d: \"%.*s%s\"",
base, 50, str, ell)));
}
PGMP_RETURN_MPZ(z);
}
PGMP_PG_FUNCTION(pmpz_out)
{
const mpz_t z;
char *buf;
PGMP_GETARG_MPZ(z, 0);
/* We must allocate the output buffer ourselves because the buffer
* returned by mpz_get_str actually starts a few bytes before (because of
* the custom GMP allocator); Postgres will try to free the pointer we
* return in printtup() so with the offsetted pointer a segfault is
* granted. */
buf = palloc(mpz_sizeinbase(z, 10) + 2); /* add sign and null */
PG_RETURN_CSTRING(mpz_get_str(buf, 10, z));
}
PGMP_PG_FUNCTION(pmpz_out_base)
{
const mpz_t z;
int base;
char *buf;
PGMP_GETARG_MPZ(z, 0);
base = PG_GETARG_INT32(1);
if (!((-36 <= base && base <= -2) ||
(2 <= base && base <= PGMP_MAXBASE_IO)))
{
ereport(ERROR, (
errcode(ERRCODE_INVALID_PARAMETER_VALUE),
errmsg("invalid base for mpz output: %d", base),
errhint("base should be between -36 and -2 or between 2 and %d",
PGMP_MAXBASE_IO)));
}
/* Allocate the output buffer manually - see mpmz_out to know why */
buf = palloc(mpz_sizeinbase(z, ABS(base)) + 2); /* add sign and null */
PG_RETURN_CSTRING(mpz_get_str(buf, base, z));
}
/*
* Cast functions
*/
static Datum _pmpz_from_long(long in);
static Datum _pmpz_from_double(double in);
PGMP_PG_FUNCTION(pmpz_from_int2)
{
int16 in = PG_GETARG_INT16(0);
return _pmpz_from_long(in);
}
PGMP_PG_FUNCTION(pmpz_from_int4)
{
int32 in = PG_GETARG_INT32(0);
return _pmpz_from_long(in);
}
PGMP_PG_FUNCTION(pmpz_from_int8)
{
int64 in = PG_GETARG_INT64(0);
#if PGMP_LONG_64
return _pmpz_from_long(in);
#elif PGMP_LONG_32
int neg = 0;
uint32 lo;
uint32 hi;
mpz_t z;
if (LIKELY(in != INT64_MIN))
{
if (in < 0) {
neg = 1;
in = -in;
}
lo = in & 0xFFFFFFFFUL;
hi = in >> 32;
if (hi) {
mpz_init_set_ui(z, hi);
mpz_mul_2exp(z, z, 32);
mpz_add_ui(z, z, lo);
}
else {
mpz_init_set_ui(z, lo);
}
if (neg) {
mpz_neg(z, z);
}
}
else {
/* this would overflow the long */
mpz_init_set_si(z, 1L);
mpz_mul_2exp(z, z, 63);
mpz_neg(z, z);
}
PGMP_RETURN_MPZ(z);
#endif
}
static Datum
_pmpz_from_long(long in)
{
mpz_t z;
mpz_init_set_si(z, in);
PGMP_RETURN_MPZ(z);
}
PGMP_PG_FUNCTION(pmpz_from_float4)
{
float4 in = PG_GETARG_FLOAT4(0);
return _pmpz_from_double(in);
}
PGMP_PG_FUNCTION(pmpz_from_float8)
{
float8 in = PG_GETARG_FLOAT8(0);
return _pmpz_from_double(in);
}
static Datum
_pmpz_from_double(double in)
{
mpz_t z;
if (isinf(in) || isnan(in)) {
ereport(ERROR, (
errcode(ERRCODE_NUMERIC_VALUE_OUT_OF_RANGE),
errmsg("can't convert float value to mpz: \"%f\"", in)));
}
mpz_init_set_d(z, in);
PGMP_RETURN_MPZ(z);
}
PGMP_PG_FUNCTION(pmpz_from_numeric)
{
char *str;
char *p;
mpz_t z;
/* convert the numeric into string. */
str = DatumGetCString(DirectFunctionCall1(numeric_out,
PG_GETARG_DATUM(0)));
/* truncate the string if it contains a decimal dot */
if ((p = strchr(str, '.'))) { *p = '\0'; }
if (0 != mpz_init_set_str(z, str, 10))
{
/* here str may have been cropped, but I expect this error
* only triggered by NaN, so not in case of regular number */
ereport(ERROR, (
errcode(ERRCODE_NUMERIC_VALUE_OUT_OF_RANGE),
errmsg("can't convert numeric value to mpz: \"%s\"", str)));
}
PGMP_RETURN_MPZ(z);
}
PGMP_PG_FUNCTION(pmpz_to_int2)
{
const mpz_t z;
int16 out;
PGMP_GETARG_MPZ(z, 0);
if (!mpz_fits_sshort_p(z)) {
ereport(ERROR, (
errcode(ERRCODE_NUMERIC_VALUE_OUT_OF_RANGE),
errmsg("numeric value too big to be converted to int2 data type")));
}
out = mpz_get_si(z);
PG_RETURN_INT16(out);
}
PGMP_PG_FUNCTION(pmpz_to_int4)
{
const mpz_t z;
int32 out;
PGMP_GETARG_MPZ(z, 0);
if (!mpz_fits_sint_p(z)) {
ereport(ERROR, (
errcode(ERRCODE_NUMERIC_VALUE_OUT_OF_RANGE),
errmsg("numeric value too big to be converted to int4 data type")));
}
out = mpz_get_si(z);
PG_RETURN_INT32(out);
}
PGMP_PG_FUNCTION(pmpz_to_int8)
{
const mpz_t z;
int64 ret = 0;
PGMP_GETARG_MPZ(z, 0);
if (0 != pmpz_get_int64(z, &ret)) {
ereport(ERROR, (
errcode(ERRCODE_NUMERIC_VALUE_OUT_OF_RANGE),
errmsg("numeric value too big to be converted to int8 data type")));
}
PG_RETURN_INT64(ret);
}
/* Convert an mpz into and int64.
*
* return 0 in case of success, else a nonzero value
*/
int
pmpz_get_int64(mpz_srcptr z, int64 *out)
{
#if PGMP_LONG_64
if (mpz_fits_slong_p(z)) {
*out = mpz_get_si(z);
return 0;
}
#elif PGMP_LONG_32
switch (SIZ(z)) {
case 0:
*out = 0LL;
return 0;
break;
case 1:
*out = (int64)(LIMBS(z)[0]);
return 0;
break;
case -1:
*out = -(int64)(LIMBS(z)[0]);
return 0;
break;
case 2:
if (LIMBS(z)[1] < 0x80000000L) {
*out = (int64)(LIMBS(z)[1]) << 32
| (int64)(LIMBS(z)[0]);
return 0;
}
break;
case -2:
if (LIMBS(z)[1] < 0x80000000L) {
*out = -((int64)(LIMBS(z)[1]) << 32
| (int64)(LIMBS(z)[0]));
return 0;
}
else if (LIMBS(z)[0] == 0 && LIMBS(z)[1] == 0x80000000L) {
*out = -0x8000000000000000LL;
return 0;
}
break;
}
#endif
return -1;
}
PGMP_PG_FUNCTION(pmpz_to_float4)
{
const mpz_t z;
double out;
PGMP_GETARG_MPZ(z, 0);
out = mpz_get_d(z);
PG_RETURN_FLOAT4((float4)out);
}
PGMP_PG_FUNCTION(pmpz_to_float8)
{
const mpz_t z;
double out;
PGMP_GETARG_MPZ(z, 0);
out = mpz_get_d(z);
PG_RETURN_FLOAT8((float8)out);
}
|
16 | ./pgmp/src/pmpz_bits.c | /* pmpz_bits -- bit manipulation functions
*
* Copyright (C) 2011 Daniele Varrazzo
*
* This file is part of the PostgreSQL GMP Module
*
* The PostgreSQL GMP Module is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public License as
* published by the Free Software Foundation; either version 3 of the License,
* or (at your option) any later version.
*
* The PostgreSQL GMP Module is distributed in the hope that it will be
* useful, but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser
* General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with the PostgreSQL GMP Module. If not, see
* http://www.gnu.org/licenses/.
*/
#include "pmpz.h"
#include "pgmp-impl.h"
#include "fmgr.h"
#include "funcapi.h"
/* Function with a more generic signature are defined in pmpz.arith.c */
/* Macro to get and return mp_bitcnt_t
*
* the value is defined as unsigned long, so it doesn't fit into an int8 on 64
* bit platform. We'll convert them to/from mpz in SQL.
*/
#define PGMP_GETARG_BITCNT(tgt,n) \
do { \
mpz_t _tmp; \
PGMP_GETARG_MPZ(_tmp, n); \
\
if (!(mpz_fits_ulong_p(_tmp))) { \
ereport(ERROR, ( \
errcode(ERRCODE_INVALID_PARAMETER_VALUE), \
errmsg("argument doesn't fit into a bitcount type") )); \
} \
\
tgt = mpz_get_ui(_tmp); \
} while (0)
#define PGMP_RETURN_BITCNT(n) \
do { \
mpz_t _rv; \
mpz_init_set_ui(_rv, n); \
PGMP_RETURN_MPZ(_rv); \
} while (0)
/* Return the largest possible mp_bitcnt_t. Useful for testing the return
* value of a few other bit manipulation functions as the value depends on the
* server platform.
*/
PGMP_PG_FUNCTION(pgmp_max_bitcnt)
{
mp_bitcnt_t ret;
ret = ~((mp_bitcnt_t)0);
PGMP_RETURN_BITCNT(ret);
}
PGMP_PG_FUNCTION(pmpz_popcount)
{
const mpz_t z;
mp_bitcnt_t ret;
PGMP_GETARG_MPZ(z, 0);
ret = mpz_popcount(z);
PGMP_RETURN_BITCNT(ret);
}
PGMP_PG_FUNCTION(pmpz_hamdist)
{
const mpz_t z1;
const mpz_t z2;
mp_bitcnt_t ret;
PGMP_GETARG_MPZ(z1, 0);
PGMP_GETARG_MPZ(z2, 1);
ret = mpz_hamdist(z1, z2);
PGMP_RETURN_BITCNT(ret);
}
#define PMPZ_SCAN(f) \
\
PGMP_PG_FUNCTION(pmpz_ ## f) \
{ \
const mpz_t z; \
mp_bitcnt_t start; \
\
PGMP_GETARG_MPZ(z, 0); \
PGMP_GETARG_BITCNT(start, 1); \
\
PGMP_RETURN_BITCNT(mpz_ ## f(z, start)); \
}
PMPZ_SCAN(scan0)
PMPZ_SCAN(scan1)
/* inplace bit fiddling operations */
#define PMPZ_BIT(f) \
\
PGMP_PG_FUNCTION(pmpz_ ## f) \
{ \
const mpz_t z; \
mp_bitcnt_t idx; \
mpz_t ret; \
\
PGMP_GETARG_MPZ(z, 0); \
PGMP_GETARG_BITCNT(idx, 1); \
\
mpz_init_set(ret, z); \
mpz_ ## f(ret, idx); \
PGMP_RETURN_MPZ(ret); \
}
PMPZ_BIT(setbit)
PMPZ_BIT(clrbit)
#if __GMP_MP_RELEASE >= 40200
PMPZ_BIT(combit)
#endif
PGMP_PG_FUNCTION(pmpz_tstbit)
{
const mpz_t z;
mp_bitcnt_t idx;
int32 ret;
PGMP_GETARG_MPZ(z, 0);
PGMP_GETARG_BITCNT(idx, 1);
ret = mpz_tstbit(z, idx);
PG_RETURN_INT32(ret);
}
|
17 | ./pgmp/src/pmpq.c | /* pmpq -- PostgreSQL data type for GMP mpq
*
* Copyright (C) 2011 Daniele Varrazzo
*
* This file is part of the PostgreSQL GMP Module
*
* The PostgreSQL GMP Module is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public License as
* published by the Free Software Foundation; either version 3 of the License,
* or (at your option) any later version.
*
* The PostgreSQL GMP Module is distributed in the hope that it will be
* useful, but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser
* General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with the PostgreSQL GMP Module. If not, see
* http://www.gnu.org/licenses/.
*/
#include "pmpq.h"
#include "pgmp-impl.h"
#include "fmgr.h"
/* To be referred to to represent the zero */
extern const mp_limb_t _pgmp_limb_0;
extern const mp_limb_t _pgmp_limb_1;
/*
* Create a pmpq structure from the content of a mpq
*
* The function is not const as the numerator will be realloc'd to make room
* to the denom limbs after it. For this reason this function must never
* receive directly data read from the database.
*/
pmpq *
pmpq_from_mpq(mpq_ptr q)
{
pmpq *res;
mpz_ptr num = mpq_numref(q);
mpz_ptr den = mpq_denref(q);
int nsize = SIZ(num);
if (LIKELY(0 != nsize))
{
/* Make enough room after the numer to store the denom limbs */
int nalloc = ABS(nsize);
int dsize = SIZ(mpq_denref(q));
if (nalloc >= dsize)
{
LIMBS(num) = _mpz_realloc(num, nalloc + dsize);
res = (pmpq *)((char *)LIMBS(num) - PMPQ_HDRSIZE);
SET_VARSIZE(res,
PMPQ_HDRSIZE + (nalloc + dsize) * sizeof(mp_limb_t));
/* copy the denom after the numer */
memcpy(res->data + nalloc, LIMBS(den), dsize * sizeof(mp_limb_t));
/* Set the number of limbs and order and implicitly version 0 */
res->mdata = PMPQ_SET_SIZE_FIRST(PMPQ_SET_NUMER_FIRST(0), nalloc);
}
else {
LIMBS(den) = _mpz_realloc(den, nalloc + dsize);
res = (pmpq *)((char *)LIMBS(den) - PMPQ_HDRSIZE);
SET_VARSIZE(res,
PMPQ_HDRSIZE + (nalloc + dsize) * sizeof(mp_limb_t));
/* copy the numer after the denom */
memcpy(res->data + dsize, LIMBS(num), nalloc * sizeof(mp_limb_t));
/* Set the number of limbs and order and implicitly version 0 */
res->mdata = PMPQ_SET_SIZE_FIRST(PMPQ_SET_DENOM_FIRST(0), dsize);
}
/* Set the sign */
if (nsize < 0) { res->mdata = PMPQ_SET_NEGATIVE(res->mdata); }
}
else
{
res = (pmpq *)((char *)LIMBS(num) - PMPQ_HDRSIZE);
SET_VARSIZE(res, PMPQ_HDRSIZE);
res->mdata = 0;
}
return res;
}
/*
* Initialize a mpq from the content of a datum
*
* NOTE: the function takes a pointer to a const and changes the structure.
* This allows to define the structure as const in the calling function and
* avoid the risk to change it inplace, which may corrupt the database data.
*
* The structure populated doesn't own the pointed data, so it must not be
* changed in any way and must not be cleared.
*/
void
mpq_from_pmpq(mpq_srcptr q, const pmpq *pq)
{
/* discard the const qualifier */
mpq_ptr wq = (mpq_ptr)q;
mpz_ptr num = mpq_numref(wq);
mpz_ptr den = mpq_denref(wq);
if (UNLIKELY(0 != (PMPQ_VERSION(pq)))) {
ereport(ERROR, (
errcode(ERRCODE_DATA_EXCEPTION),
errmsg("unsupported mpq version: %d", PMPQ_VERSION(pq))));
}
if (0 != PMPQ_NLIMBS(pq))
{
mpz_ptr fst, snd;
if (PMPQ_NUMER_FIRST(pq)) {
fst = num; snd = den;
}
else {
fst = den; snd = num;
}
/* We have data from numer and denom into the datum */
ALLOC(fst) = SIZ(fst) = PMPQ_SIZE_FIRST(pq);
LIMBS(fst) = (mp_limb_t *)pq->data;
ALLOC(snd) = SIZ(snd) = PMPQ_SIZE_SECOND(pq);
LIMBS(snd) = (mp_limb_t *)pq->data + ALLOC(fst);
if (PMPQ_NEGATIVE(pq)) { SIZ(num) = -SIZ(num); }
}
else {
/* in the datum there is not 1/0,
* so let's just refer to some static const */
ALLOC(num) = 1;
SIZ(num) = 0;
LIMBS(num) = (mp_limb_t *)(&_pgmp_limb_0);
ALLOC(den) = 1;
SIZ(den) = 1;
LIMBS(den) = (mp_limb_t *)(&_pgmp_limb_1);
}
}
|
18 | ./pgmp/src/pmpq_agg.c | /* pmpq_agg -- mpq aggregation functions
*
* Copyright (C) 2011 Daniele Varrazzo
*
* This file is part of the PostgreSQL GMP Module
*
* The PostgreSQL GMP Module is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public License as
* published by the Free Software Foundation; either version 3 of the License,
* or (at your option) any later version.
*
* The PostgreSQL GMP Module is distributed in the hope that it will be
* useful, but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser
* General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with the PostgreSQL GMP Module. If not, see
* http://www.gnu.org/licenses/.
*/
#include "pmpq.h"
#include "pgmp_utils.h" /* for AggCheckCallContext on PG < 9.0 */
#include "pgmp-impl.h"
#include "fmgr.h"
/* Convert an inplace accumulator into a pmpq structure.
*
* This function is strict, so don't care about NULLs
*/
PGMP_PG_FUNCTION(_pmpq_from_agg)
{
mpq_t *a;
a = (mpq_t *)PG_GETARG_POINTER(0);
PGMP_RETURN_MPQ(*a);
}
/* Macro to create an accumulation function from a gmp operator.
*
* This function can't be strict because the internal state is not compatible
* with the base type.
*/
#define PMPQ_AGG(op, BLOCK, rel) \
\
PGMP_PG_FUNCTION(_pmpq_agg_ ## op) \
{ \
mpq_t *a; \
const mpq_t q; \
MemoryContext oldctx; \
MemoryContext aggctx; \
\
if (UNLIKELY(!AggCheckCallContext(fcinfo, &aggctx))) \
{ \
ereport(ERROR, \
(errcode(ERRCODE_DATA_EXCEPTION), \
errmsg("_mpq_agg_" #op " can only be called in accumulation"))); \
} \
\
if (PG_ARGISNULL(1)) { \
if (PG_ARGISNULL(0)) { \
PG_RETURN_NULL(); \
} \
else { \
PG_RETURN_POINTER(PG_GETARG_POINTER(0)); \
} \
} \
\
PGMP_GETARG_MPQ(q, 1); \
\
oldctx = MemoryContextSwitchTo(aggctx); \
\
if (LIKELY(!PG_ARGISNULL(0))) { \
a = (mpq_t *)PG_GETARG_POINTER(0); \
BLOCK(op, rel); \
} \
else { /* uninitialized */ \
a = (mpq_t *)palloc(sizeof(mpq_t)); \
mpq_init(*a); \
mpq_set(*a, q); \
} \
\
MemoryContextSwitchTo(oldctx); \
\
PG_RETURN_POINTER(a); \
}
#define PMPQ_AGG_OP(op, rel) \
mpq_ ## op (*a, *a, q)
PMPQ_AGG(add, PMPQ_AGG_OP, 0)
PMPQ_AGG(mul, PMPQ_AGG_OP, 0)
#define PMPQ_AGG_REL(op, rel) \
do { \
if (mpq_cmp(*a, q) rel 0) { \
mpq_set(*a, q); \
} \
} while (0)
PMPQ_AGG(min, PMPQ_AGG_REL, >)
PMPQ_AGG(max, PMPQ_AGG_REL, <)
|
19 | ./little-cms/utils/samples/vericc.c | //---------------------------------------------------------------------------------
//
// Little Color Management System
// Copyright (c) 1998-2010 Marti Maria Saguer
//
// Permission is hereby granted, free of charge, to any person obtaining
// a copy of this software and associated documentation files (the "Software"),
// to deal in the Software without restriction, including without limitation
// the rights to use, copy, modify, merge, publish, distribute, sublicense,
// and/or sell copies of the Software, and to permit persons to whom the Software
// is furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO
// THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
// LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
// OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
// WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
//
//---------------------------------------------------------------------------------
//
#include "lcms2.h"
#include <string.h>
#include <math.h>
static
int PrintUsage(void)
{
fprintf(stderr, "Sets profile version\n\nUsage: vericc --r<version> iccprofile.icc\n");
return 0;
}
int main(int argc, char *argv[])
{
cmsHPROFILE hProfile;
char* ptr;
cmsFloat64Number Version;
if (argc != 3) return PrintUsage();
ptr = argv[1];
if (strncmp(ptr, "--r", 3) != 0) return PrintUsage();
ptr += 3;
if (!*ptr) { fprintf(stderr, "Wrong version number\n"); return 1; }
Version = atof(ptr);
hProfile = cmsOpenProfileFromFile(argv[2], "r");
if (hProfile == NULL) { fprintf(stderr, "'%s': cannot open\n", argv[2]); return 1; }
cmsSetProfileVersion(hProfile, Version);
cmsSaveProfileToFile(hProfile, "$$tmp.icc");
cmsCloseProfile(hProfile);
remove(argv[2]);
rename("$$tmp.icc", argv[2]);
return 0;
}
|
20 | ./little-cms/utils/samples/mktiff8.c | //
// Little cms
// Copyright (C) 1998-2010 Marti Maria
//
// Permission is hereby granted, free of charge, to any person obtaining
// a copy of this software and associated documentation files (the "Software"),
// to deal in the Software without restriction, including without limitation
// the rights to use, copy, modify, merge, publish, distribute, sublicense,
// and/or sell copies of the Software, and to permit persons to whom the Software
// is furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO
// THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
// LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
// OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
// WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
// Creates a devicelink that decodes TIFF8 Lab files
#include "lcms2.h"
#include <stdlib.h>
#include <math.h>
static
double DecodeAbTIFF(double ab)
{
if (ab <= 128.)
ab += 127.;
else
ab -= 127.;
return ab;
}
static
cmsToneCurve* CreateStep(void)
{
cmsToneCurve* Gamma;
cmsUInt16Number* Table;
int i;
double a;
Table = calloc(4096, sizeof(cmsUInt16Number));
if (Table == NULL) return NULL;
for (i=0; i < 4096; i++) {
a = (double) i * 255. / 4095.;
a = DecodeAbTIFF(a);
Table[i] = (cmsUInt16Number) floor(a * 257. + 0.5);
}
Gamma = cmsBuildTabulatedToneCurve16(0, 4096, Table);
free(Table);
return Gamma;
}
static
cmsToneCurve* CreateLinear(void)
{
cmsUInt16Number Linear[2] = { 0, 0xffff };
return cmsBuildTabulatedToneCurve16(0, 2, Linear);
}
// Set the copyright and description
static
cmsBool SetTextTags(cmsHPROFILE hProfile)
{
cmsMLU *DescriptionMLU, *CopyrightMLU;
cmsBool rc = FALSE;
DescriptionMLU = cmsMLUalloc(0, 1);
CopyrightMLU = cmsMLUalloc(0, 1);
if (DescriptionMLU == NULL || CopyrightMLU == NULL) goto Error;
if (!cmsMLUsetASCII(DescriptionMLU, "en", "US", "Little cms Tiff8 CIELab")) goto Error;
if (!cmsMLUsetASCII(CopyrightMLU, "en", "US", "Copyright (c) Marti Maria, 2010. All rights reserved.")) goto Error;
if (!cmsWriteTag(hProfile, cmsSigProfileDescriptionTag, DescriptionMLU)) goto Error;
if (!cmsWriteTag(hProfile, cmsSigCopyrightTag, CopyrightMLU)) goto Error;
rc = TRUE;
Error:
if (DescriptionMLU)
cmsMLUfree(DescriptionMLU);
if (CopyrightMLU)
cmsMLUfree(CopyrightMLU);
return rc;
}
int main(int argc, char *argv[])
{
cmsHPROFILE hProfile;
cmsPipeline *AToB0;
cmsToneCurve* PreLinear[3];
cmsToneCurve *Lin, *Step;
fprintf(stderr, "Creating lcmstiff8.icm...");
remove("lcmstiff8.icm");
hProfile = cmsOpenProfileFromFile("lcmstiff8.icm", "w");
// Create linearization
Lin = CreateLinear();
Step = CreateStep();
PreLinear[0] = Lin;
PreLinear[1] = Step;
PreLinear[2] = Step;
AToB0 = cmsPipelineAlloc(0, 3, 3);
cmsPipelineInsertStage(AToB0,
cmsAT_BEGIN, cmsStageAllocToneCurves(0, 3, PreLinear));
cmsSetColorSpace(hProfile, cmsSigLabData);
cmsSetPCS(hProfile, cmsSigLabData);
cmsSetDeviceClass(hProfile, cmsSigLinkClass);
cmsSetProfileVersion(hProfile, 4.2);
cmsWriteTag(hProfile, cmsSigAToB0Tag, AToB0);
SetTextTags(hProfile);
cmsCloseProfile(hProfile);
cmsFreeToneCurve(Lin);
cmsFreeToneCurve(Step);
cmsPipelineFree(AToB0);
fprintf(stderr, "Done.\n");
return 0;
}
|
21 | ./little-cms/utils/samples/itufax.c | //
// Little cms
// Copyright (C) 1998-2003 Marti Maria
//
// Permission is hereby granted, free of charge, to any person obtaining
// a copy of this software and associated documentation files (the "Software"),
// to deal in the Software without restriction, including without limitation
// the rights to use, copy, modify, merge, publish, distribute, sublicense,
// and/or sell copies of the Software, and to permit persons to whom the Software
// is furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO
// THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
// LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
// OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
// WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
#include "lcms.h"
// This is a sample on how to build a profile for decoding ITU T.42/Fax JPEG
// streams. The profile has an additional ability in the input direction of
// gamut compress values between 85 < a < -85 and -75 < b < 125. This conforms
// the default range for ITU/T.42 -- See RFC 2301, section 6.2.3 for details
// L* = [0, 100]
// a* = [û85, 85]
// b* = [û75, 125]
// These functions does convert the encoding of ITUFAX to floating point
static
void ITU2Lab(WORD In[3], LPcmsCIELab Lab)
{
Lab -> L = (double) In[0] / 655.35;
Lab -> a = (double) 170.* (In[1] - 32768.) / 65535.;
Lab -> b = (double) 200.* (In[2] - 24576.) / 65535.;
}
static
void Lab2ITU(LPcmsCIELab Lab, WORD Out[3])
{
Out[0] = (WORD) floor((double) (Lab -> L / 100.)* 65535. + 0.5);
Out[1] = (WORD) floor((double) (Lab -> a / 170.)* 65535. + 32768. + 0.5);
Out[2] = (WORD) floor((double) (Lab -> b / 200.)* 65535. + 24576. + 0.5);
}
// These are the samplers-- They are passed as callbacks to cmsSample3DGrid()
// then, cmsSample3DGrid() will sweel whole Lab gamut calling these functions
// once for each node. In[] will contain the Lab PCS value to convert to ITUFAX
// on InputDirection, or the ITUFAX value to convert to Lab in OutputDirection
// You can change the number of sample points if desired, the algorithm will
// remain same. 33 points gives good accurancy, but you can reduce to 22 or less
// is space is critical
#define GRID_POINTS 33
static
int InputDirection(register WORD In[], register WORD Out[], register LPVOID Cargo)
{
cmsCIELab Lab;
cmsLabEncoded2Float(&Lab, In);
cmsClampLab(&Lab, 85, -85, 125, -75); // This function does the necessary gamut remapping
Lab2ITU(&Lab, Out);
return TRUE;
}
static
int OutputDirection(register WORD In[], register WORD Out[], register LPVOID Cargo)
{
cmsCIELab Lab;
ITU2Lab(In, &Lab);
cmsFloat2LabEncoded(Out, &Lab);
return TRUE;
}
// The main entry point. Just create a profile an populate it with required tags.
// note that cmsOpenProfileFromFile("itufax.icm", "w") will NOT delete the file
// if already exists. This is for obvious safety reasons.
int main(int argc, char *argv[])
{
LPLUT AToB0, BToA0;
cmsHPROFILE hProfile;
fprintf(stderr, "Creating itufax.icm...");
unlink("itufax.icm");
hProfile = cmsOpenProfileFromFile("itufax.icm", "w");
AToB0 = cmsAllocLUT();
BToA0 = cmsAllocLUT();
cmsAlloc3DGrid(AToB0, GRID_POINTS, 3, 3);
cmsAlloc3DGrid(BToA0, GRID_POINTS, 3, 3);
cmsSample3DGrid(AToB0, InputDirection, NULL, 0);
cmsSample3DGrid(BToA0, OutputDirection, NULL, 0);
cmsAddTag(hProfile, icSigAToB0Tag, AToB0);
cmsAddTag(hProfile, icSigBToA0Tag, BToA0);
cmsSetColorSpace(hProfile, icSigLabData);
cmsSetPCS(hProfile, icSigLabData);
cmsSetDeviceClass(hProfile, icSigColorSpaceClass);
cmsAddTag(hProfile, icSigProfileDescriptionTag, "ITU T.42/Fax JPEG CIEL*a*b*");
cmsAddTag(hProfile, icSigCopyrightTag, "No Copyright, use freely.");
cmsAddTag(hProfile, icSigDeviceMfgDescTag, "Little cms");
cmsAddTag(hProfile, icSigDeviceModelDescTag, "ITU T.42/Fax JPEG CIEL*a*b*");
cmsCloseProfile(hProfile);
cmsFreeLUT(AToB0);
cmsFreeLUT(BToA0);
fprintf(stderr, "Done.\n");
return 0;
}
|
22 | ./little-cms/utils/samples/mkcmy.c | //
// Little cms
// Copyright (C) 1998-2003 Marti Maria
//
// Permission is hereby granted, free of charge, to any person obtaining
// a copy of this software and associated documentation files (the "Software"),
// to deal in the Software without restriction, including without limitation
// the rights to use, copy, modify, merge, publish, distribute, sublicense,
// and/or sell copies of the Software, and to permit persons to whom the Software
// is furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
//
// THIS SOFTWARE IS PROVIDED "AS-IS" AND WITHOUT WARRANTY OF ANY KIND,
// EXPRESS, IMPLIED OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY
// WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE.
//
// IN NO EVENT SHALL MARTI MARIA BE LIABLE FOR ANY SPECIAL, INCIDENTAL,
// INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND,
// OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS,
// WHETHER OR NOT ADVISED OF THE POSSIBILITY OF DAMAGE, AND ON ANY THEORY OF
// LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE
// OF THIS SOFTWARE.
//
// Version 1.12
#include "lcms.h"
typedef struct {
cmsHPROFILE hLab;
cmsHPROFILE hRGB;
cmsHTRANSFORM Lab2RGB;
cmsHTRANSFORM RGB2Lab;
} CARGO, FAR* LPCARGO;
// Our space will be CIE primaries plus a gamma of 4.5
static
int Forward(register WORD In[], register WORD Out[], register LPVOID Cargo)
{
LPCARGO C = (LPCARGO) Cargo;
WORD RGB[3];
cmsCIELab Lab;
cmsLabEncoded2Float(&Lab, In);
printf("%g %g %g\n", Lab.L, Lab.a, Lab.b);
cmsDoTransform(C ->Lab2RGB, In, &RGB, 1);
Out[0] = 0xFFFF - RGB[0]; // Our CMY is negative of RGB
Out[1] = 0xFFFF - RGB[1];
Out[2] = 0xFFFF - RGB[2];
return TRUE;
}
static
int Reverse(register WORD In[], register WORD Out[], register LPVOID Cargo)
{
LPCARGO C = (LPCARGO) Cargo;
WORD RGB[3];
RGB[0] = 0xFFFF - In[0];
RGB[1] = 0xFFFF - In[1];
RGB[2] = 0xFFFF - In[2];
cmsDoTransform(C ->RGB2Lab, &RGB, Out, 1);
return TRUE;
}
static
void InitCargo(LPCARGO Cargo)
{
Cargo -> hLab = cmsCreateLabProfile(NULL);
Cargo -> hRGB = cmsCreate_sRGBProfile();
Cargo->Lab2RGB = cmsCreateTransform(Cargo->hLab, TYPE_Lab_16,
Cargo ->hRGB, TYPE_RGB_16,
INTENT_RELATIVE_COLORIMETRIC,
cmsFLAGS_NOTPRECALC);
Cargo->RGB2Lab = cmsCreateTransform(Cargo ->hRGB, TYPE_RGB_16,
Cargo ->hLab, TYPE_Lab_16,
INTENT_RELATIVE_COLORIMETRIC,
cmsFLAGS_NOTPRECALC);
}
static
void FreeCargo(LPCARGO Cargo)
{
cmsDeleteTransform(Cargo ->Lab2RGB);
cmsDeleteTransform(Cargo ->RGB2Lab);
cmsCloseProfile(Cargo ->hLab);
cmsCloseProfile(Cargo ->hRGB);
}
int main(void)
{
LPLUT AToB0, BToA0;
CARGO Cargo;
cmsHPROFILE hProfile;
fprintf(stderr, "Creating lcmscmy.icm...");
InitCargo(&Cargo);
hProfile = cmsCreateLabProfile(NULL);
AToB0 = cmsAllocLUT();
BToA0 = cmsAllocLUT();
cmsAlloc3DGrid(AToB0, 25, 3, 3);
cmsAlloc3DGrid(BToA0, 25, 3, 3);
cmsSample3DGrid(AToB0, Reverse, &Cargo, 0);
cmsSample3DGrid(BToA0, Forward, &Cargo, 0);
cmsAddTag(hProfile, icSigAToB0Tag, AToB0);
cmsAddTag(hProfile, icSigBToA0Tag, BToA0);
cmsSetColorSpace(hProfile, icSigCmyData);
cmsSetDeviceClass(hProfile, icSigOutputClass);
cmsAddTag(hProfile, icSigProfileDescriptionTag, "CMY ");
cmsAddTag(hProfile, icSigCopyrightTag, "Copyright (c) HP, 2007. All rights reserved.");
cmsAddTag(hProfile, icSigDeviceMfgDescTag, "Little cms");
cmsAddTag(hProfile, icSigDeviceModelDescTag, "CMY space");
_cmsSaveProfile(hProfile, "lcmscmy.icm");
cmsFreeLUT(AToB0);
cmsFreeLUT(BToA0);
cmsCloseProfile(hProfile);
FreeCargo(&Cargo);
fprintf(stderr, "Done.\n");
return 0;
}
|
23 | ./little-cms/utils/samples/wtpt.c | //
// Little cms
// Copyright (C) 1998-2000 Marti Maria
//
// THIS SOFTWARE IS PROVIDED "AS-IS" AND WITHOUT WARRANTY OF ANY KIND,
// EXPRESS, IMPLIED OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY
// WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE.
//
// IN NO EVENT SHALL MARTI MARIA BE LIABLE FOR ANY SPECIAL, INCIDENTAL,
// INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND,
// OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS,
// WHETHER OR NOT ADVISED OF THE POSSIBILITY OF DAMAGE, AND ON ANY THEORY OF
// LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE
// OF THIS SOFTWARE.
//
//
// This library is free software; you can redistribute it and/or
// modify it under the terms of the GNU Lesser General Public
// License as published by the Free Software Foundation; either
// version 2 of the License, or (at your option) any later version.
//
// This library is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
// Lesser General Public License for more details.
//
// You should have received a copy of the GNU Lesser General Public
// License along with this library; if not, write to the Free Software
// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
// Example: how to show white points of profiles
#include "lcms.h"
static
void ShowWhitePoint(LPcmsCIEXYZ WtPt)
{
cmsCIELab Lab;
cmsCIELCh LCh;
cmsCIExyY xyY;
char Buffer[1024];
_cmsIdentifyWhitePoint(Buffer, WtPt);
printf("%s\n", Buffer);
cmsXYZ2Lab(NULL, &Lab, WtPt);
cmsLab2LCh(&LCh, &Lab);
cmsXYZ2xyY(&xyY, WtPt);
printf("XYZ=(%3.1f, %3.1f, %3.1f)\n", WtPt->X, WtPt->Y, WtPt->Z);
printf("Lab=(%3.3f, %3.3f, %3.3f)\n", Lab.L, Lab.a, Lab.b);
printf("(x,y)=(%3.3f, %3.3f)\n", xyY.x, xyY.y);
printf("Hue=%3.2f, Chroma=%3.2f\n", LCh.h, LCh.C);
printf("\n");
}
int main (int argc, char *argv[])
{
printf("Show media white of profiles, identifying black body locus. v2\n\n");
if (argc == 2) {
cmsCIEXYZ WtPt;
cmsHPROFILE hProfile = cmsOpenProfileFromFile(argv[1], "r");
printf("%s\n", cmsTakeProductName(hProfile));
cmsTakeMediaWhitePoint(&WtPt, hProfile);
ShowWhitePoint(&WtPt);
cmsCloseProfile(hProfile);
}
else
{
cmsCIEXYZ xyz;
printf("usage:\n\nIf no parameters are given, then this program will\n");
printf("ask for XYZ value of media white. If parameter given, it must be\n");
printf("the profile to inspect.\n\n");
printf("X? "); scanf("%lf", &xyz.X);
printf("Y? "); scanf("%lf", &xyz.Y);
printf("Z? "); scanf("%lf", &xyz.Z);
ShowWhitePoint(&xyz);
}
return 0;
}
|
24 | ./little-cms/utils/samples/roundtrip.c | //
// Little cms
// Copyright (C) 1998-2011 Marti Maria
//
// Permission is hereby granted, free of charge, to any person obtaining
// a copy of this software and associated documentation files (the "Software"),
// to deal in the Software without restriction, including without limitation
// the rights to use, copy, modify, merge, publish, distribute, sublicense,
// and/or sell copies of the Software, and to permit persons to whom the Software
// is furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO
// THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
// LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
// OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
#include "lcms2.h"
#include <math.h>
static
double VecDist(cmsUInt8Number bin[3], cmsUInt8Number bout[3])
{
double rdist, gdist, bdist;
rdist = fabs((double) bout[0] - bin[0]);
gdist = fabs((double) bout[1] - bin[1]);
bdist = fabs((double) bout[2] - bin[2]);
return (sqrt((rdist*rdist + gdist*gdist + bdist*bdist)));
}
int main(int argc, char* argv[])
{
int r, g, b;
cmsUInt8Number RGB[3], RGB_OUT[3];
cmsHTRANSFORM xform;
cmsHPROFILE hProfile;
double err, SumX=0, SumX2=0, Peak = 0, n = 0;
if (argc != 2) {
printf("roundtrip <RGB icc profile>\n");
return 1;
}
hProfile = cmsOpenProfileFromFile(argv[1], "r");
xform = cmsCreateTransform(hProfile,TYPE_RGB_8, hProfile, TYPE_RGB_8, INTENT_RELATIVE_COLORIMETRIC, cmsFLAGS_NOOPTIMIZE);
for (r=0; r< 256; r++) {
printf("%d \r", r);
for (g=0; g < 256; g++) {
for (b=0; b < 256; b++) {
RGB[0] = r;
RGB[1] = g;
RGB[2] = b;
cmsDoTransform(xform, RGB, RGB_OUT, 1);
err = VecDist(RGB, RGB_OUT);
SumX += err;
SumX2 += err * err;
n += 1.0;
if (err > Peak)
Peak = err;
}
}
}
printf("Average %g\n", SumX / n);
printf("Max %g\n", Peak);
printf("Std %g\n", sqrt((n*SumX2 - SumX * SumX) / (n*(n-1))));
cmsCloseProfile(hProfile);
cmsDeleteTransform(xform);
return 0;
} |
25 | ./little-cms/utils/samples/mkgrayer.c | //
// Little cms
// Copyright (C) 1998-2003 Marti Maria
//
// Permission is hereby granted, free of charge, to any person obtaining
// a copy of this software and associated documentation files (the "Software"),
// to deal in the Software without restriction, including without limitation
// the rights to use, copy, modify, merge, publish, distribute, sublicense,
// and/or sell copies of the Software, and to permit persons to whom the Software
// is furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO
// THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
// LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
// OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
// WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
#include "lcms.h"
static
int Forward(register WORD In[], register WORD Out[], register LPVOID Cargo)
{
cmsCIELab Lab;
cmsLabEncoded2Float(&Lab, In);
if (fabs(Lab.a) < 3 && fabs(Lab.b) < 3) {
double L_01 = Lab.L / 100.0;
WORD K;
if (L_01 > 1) L_01 = 1;
K = (WORD) floor(L_01* 65535.0 + 0.5);
Out[0] = Out[1] = Out[2] = K;
}
else {
Out[0] = 0xFFFF; Out[1] = 0; Out[2] = 0;
}
return TRUE;
}
int main(int argc, char *argv[])
{
LPLUT BToA0;
cmsHPROFILE hProfile;
fprintf(stderr, "Creating interpol2.icc...");
unlink("interpol2.icc");
hProfile = cmsOpenProfileFromFile("interpol2.icc", "w8");
BToA0 = cmsAllocLUT();
cmsAlloc3DGrid(BToA0, 17, 3, 3);
cmsSample3DGrid(BToA0, Forward, NULL, 0);
cmsAddTag(hProfile, icSigBToA0Tag, BToA0);
cmsSetColorSpace(hProfile, icSigRgbData);
cmsSetPCS(hProfile, icSigLabData);
cmsSetDeviceClass(hProfile, icSigOutputClass);
cmsAddTag(hProfile, icSigProfileDescriptionTag, "Interpolation test");
cmsAddTag(hProfile, icSigCopyrightTag, "Copyright (c) HP 2007. All rights reserved.");
cmsAddTag(hProfile, icSigDeviceMfgDescTag, "Little cms");
cmsAddTag(hProfile, icSigDeviceModelDescTag, "Interpolation test profile");
cmsCloseProfile(hProfile);
cmsFreeLUT(BToA0);
fprintf(stderr, "Done.\n");
return 0;
}
|
26 | ./little-cms/utils/common/xgetopt.c | /*
getopt.c
*/
#include <errno.h>
#include <string.h>
#include <stdio.h>
int xoptind = 1; /* index of which argument is next */
char *xoptarg; /* pointer to argument of current option */
int xopterr = 0; /* allow error message */
static char *letP = NULL; /* remember next option char's location */
char SW = '-'; /* DOS switch character, either '-' or '/' */
/*
Parse the command line options, System V style.
Standard option syntax is:
option ::= SW [optLetter]* [argLetter space* argument]
*/
int xgetopt(int argc, char *argv[], char *optionS)
{
unsigned char ch;
char *optP;
if (SW == 0) {
SW = '/';
}
if (argc > xoptind) {
if (letP == NULL) {
if ((letP = argv[xoptind]) == NULL ||
*(letP++) != SW) goto gopEOF;
if (*letP == SW) {
xoptind++; goto gopEOF;
}
}
if (0 == (ch = *(letP++))) {
xoptind++; goto gopEOF;
}
if (':' == ch || (optP = strchr(optionS, ch)) == NULL)
goto gopError;
if (':' == *(++optP)) {
xoptind++;
if (0 == *letP) {
if (argc <= xoptind) goto gopError;
letP = argv[xoptind++];
}
xoptarg = letP;
letP = NULL;
} else {
if (0 == *letP) {
xoptind++;
letP = NULL;
}
xoptarg = NULL;
}
return ch;
}
gopEOF:
xoptarg = letP = NULL;
return EOF;
gopError:
xoptarg = NULL;
errno = EINVAL;
if (xopterr)
perror ("get command line option");
return ('?');
}
|
27 | ./little-cms/utils/common/vprf.c | //---------------------------------------------------------------------------------
//
// Little Color Management System
// Copyright (c) 1998-2010 Marti Maria Saguer
//
// Permission is hereby granted, free of charge, to any person obtaining
// a copy of this software and associated documentation files (the "Software"),
// to deal in the Software without restriction, including without limitation
// the rights to use, copy, modify, merge, publish, distribute, sublicense,
// and/or sell copies of the Software, and to permit persons to whom the Software
// is furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO
// THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
// LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
// OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
// WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
//
//---------------------------------------------------------------------------------
//
#include "utils.h"
int Verbose = 0;
static char ProgramName[256] = "";
void FatalError(const char *frm, ...)
{
va_list args;
va_start(args, frm);
fprintf(stderr, "[%s fatal error]: ", ProgramName);
vfprintf(stderr, frm, args);
fprintf(stderr, "\n");
va_end(args);
exit(1);
}
// Show errors to the end user (unless quiet option)
static
void MyErrorLogHandler(cmsContext ContextID, cmsUInt32Number ErrorCode, const char *Text)
{
if (Verbose >= 0)
fprintf(stderr, "[%s]: %s\n", ProgramName, Text);
UTILS_UNUSED_PARAMETER(ErrorCode);
UTILS_UNUSED_PARAMETER(ContextID);
}
void InitUtils(const char* PName)
{
strncpy(ProgramName, PName, sizeof(ProgramName));
ProgramName[sizeof(ProgramName)-1] = 0;
cmsSetLogErrorHandler(MyErrorLogHandler);
}
// Virtual profiles are handled here.
cmsHPROFILE OpenStockProfile(cmsContext ContextID, const char* File)
{
if (!File)
return cmsCreate_sRGBProfileTHR(ContextID);
if (cmsstrcasecmp(File, "*Lab2") == 0)
return cmsCreateLab2ProfileTHR(ContextID, NULL);
if (cmsstrcasecmp(File, "*Lab4") == 0)
return cmsCreateLab4ProfileTHR(ContextID, NULL);
if (cmsstrcasecmp(File, "*Lab") == 0)
return cmsCreateLab4ProfileTHR(ContextID, NULL);
if (cmsstrcasecmp(File, "*LabD65") == 0) {
cmsCIExyY D65xyY;
cmsWhitePointFromTemp( &D65xyY, 6504);
return cmsCreateLab4ProfileTHR(ContextID, &D65xyY);
}
if (cmsstrcasecmp(File, "*XYZ") == 0)
return cmsCreateXYZProfileTHR(ContextID);
if (cmsstrcasecmp(File, "*Gray22") == 0) {
cmsToneCurve* Curve = cmsBuildGamma(ContextID, 2.2);
cmsHPROFILE hProfile = cmsCreateGrayProfileTHR(ContextID, cmsD50_xyY(), Curve);
cmsFreeToneCurve(Curve);
return hProfile;
}
if (cmsstrcasecmp(File, "*Gray30") == 0) {
cmsToneCurve* Curve = cmsBuildGamma(ContextID, 3.0);
cmsHPROFILE hProfile = cmsCreateGrayProfileTHR(ContextID, cmsD50_xyY(), Curve);
cmsFreeToneCurve(Curve);
return hProfile;
}
if (cmsstrcasecmp(File, "*srgb") == 0)
return cmsCreate_sRGBProfileTHR(ContextID);
if (cmsstrcasecmp(File, "*null") == 0)
return cmsCreateNULLProfileTHR(ContextID);
if (cmsstrcasecmp(File, "*Lin2222") == 0) {
cmsToneCurve* Gamma = cmsBuildGamma(0, 2.2);
cmsToneCurve* Gamma4[4];
cmsHPROFILE hProfile;
Gamma4[0] = Gamma4[1] = Gamma4[2] = Gamma4[3] = Gamma;
hProfile = cmsCreateLinearizationDeviceLink(cmsSigCmykData, Gamma4);
cmsFreeToneCurve(Gamma);
return hProfile;
}
return cmsOpenProfileFromFileTHR(ContextID, File, "r");
}
// Help on available built-ins
void PrintBuiltins(void)
{
fprintf(stderr, "\nBuilt-in profiles:\n\n");
fprintf(stderr, "\t*Lab2 -- D50-based v2 CIEL*a*b\n"
"\t*Lab4 -- D50-based v4 CIEL*a*b\n"
"\t*Lab -- D50-based v4 CIEL*a*b\n"
"\t*XYZ -- CIE XYZ (PCS)\n"
"\t*sRGB -- sRGB color space\n"
"\t*Gray22 - Monochrome of Gamma 2.2\n"
"\t*Gray30 - Monochrome of Gamma 3.0\n"
"\t*null - Monochrome black for all input\n"
"\t*Lin2222- CMYK linearization of gamma 2.2 on each channel\n");
}
// Auxiliar for printing information on profile
static
void PrintInfo(cmsHPROFILE h, cmsInfoType Info)
{
char* text;
int len;
len = cmsGetProfileInfoASCII(h, Info, "en", "US", NULL, 0);
if (len == 0) return;
text = malloc(len * sizeof(char));
if (text == NULL) return;
cmsGetProfileInfoASCII(h, Info, "en", "US", text, len);
if (strlen(text) > 0)
printf("%s\n", text);
free(text);
}
// Displays the colorant table
static
void PrintColorantTable(cmsHPROFILE hInput, cmsTagSignature Sig, const char* Title)
{
cmsNAMEDCOLORLIST* list;
int i, n;
if (cmsIsTag(hInput, Sig)) {
printf("%s:\n", Title);
list = cmsReadTag(hInput, Sig);
if (list == NULL) {
printf("(Unavailable)\n");
return;
}
n = cmsNamedColorCount(list);
for (i=0; i < n; i++) {
char Name[cmsMAX_PATH];
cmsNamedColorInfo(list, i, Name, NULL, NULL, NULL, NULL);
printf("\t%s\n", Name);
}
printf("\n");
}
}
void PrintProfileInformation(cmsHPROFILE hInput)
{
PrintInfo(hInput, cmsInfoDescription);
PrintInfo(hInput, cmsInfoManufacturer);
PrintInfo(hInput, cmsInfoModel);
PrintInfo(hInput, cmsInfoCopyright);
if (Verbose > 2) {
PrintColorantTable(hInput, cmsSigColorantTableTag, "Input colorant table");
PrintColorantTable(hInput, cmsSigColorantTableOutTag, "Input colorant out table");
}
printf("\n");
}
// -----------------------------------------------------------------------------
void PrintRenderingIntents(void)
{
cmsUInt32Number Codes[200];
char* Descriptions[200];
cmsUInt32Number n, i;
fprintf(stderr, "%ct<n> rendering intent:\n\n", SW);
n = cmsGetSupportedIntents(200, Codes, Descriptions);
for (i=0; i < n; i++) {
fprintf(stderr, "\t%u - %s\n", Codes[i], Descriptions[i]);
}
fprintf(stderr, "\n");
}
// ------------------------------------------------------------------------------
cmsBool SaveMemoryBlock(const cmsUInt8Number* Buffer, cmsUInt32Number dwLen, const char* Filename)
{
FILE* out = fopen(Filename, "wb");
if (out == NULL) {
FatalError("Cannot create '%s'", Filename);
return FALSE;
}
if (fwrite(Buffer, 1, dwLen, out) != dwLen) {
FatalError("Cannot write %ld bytes to %s", dwLen, Filename);
return FALSE;
}
if (fclose(out) != 0) {
FatalError("Error flushing file '%s'", Filename);
return FALSE;
}
return TRUE;
}
// ------------------------------------------------------------------------------
// Return a pixel type on depending on the number of channels
int PixelTypeFromChanCount(int ColorChannels)
{
switch (ColorChannels) {
case 1: return PT_GRAY;
case 2: return PT_MCH2;
case 3: return PT_MCH3;
case 4: return PT_CMYK;
case 5: return PT_MCH5;
case 6: return PT_MCH6;
case 7: return PT_MCH7;
case 8: return PT_MCH8;
case 9: return PT_MCH9;
case 10: return PT_MCH10;
case 11: return PT_MCH11;
case 12: return PT_MCH12;
case 13: return PT_MCH13;
case 14: return PT_MCH14;
case 15: return PT_MCH15;
default:
FatalError("What a weird separation of %d channels?!?!", ColorChannels);
return -1;
}
}
// ------------------------------------------------------------------------------
// Return number of channels of pixel type
int ChanCountFromPixelType(int ColorChannels)
{
switch (ColorChannels) {
case PT_GRAY: return 1;
case PT_RGB:
case PT_CMY:
case PT_Lab:
case PT_YUV:
case PT_YCbCr: return 3;
case PT_CMYK: return 4 ;
case PT_MCH2: return 2 ;
case PT_MCH3: return 3 ;
case PT_MCH4: return 4 ;
case PT_MCH5: return 5 ;
case PT_MCH6: return 6 ;
case PT_MCH7: return 7 ;
case PT_MCH8: return 8 ;
case PT_MCH9: return 9 ;
case PT_MCH10: return 10;
case PT_MCH11: return 11;
case PT_MCH12: return 12;
case PT_MCH13: return 12;
case PT_MCH14: return 14;
case PT_MCH15: return 15;
default:
FatalError("Unsupported color space of %d channels", ColorChannels);
return -1;
}
}
|
28 | ./little-cms/utils/jpgicc/jpgicc.c | //---------------------------------------------------------------------------------
//
// Little Color Management System
// Copyright (c) 1998-2010 Marti Maria Saguer
//
// Permission is hereby granted, free of charge, to any person obtaining
// a copy of this software and associated documentation files (the "Software"),
// to deal in the Software without restriction, including without limitation
// the rights to use, copy, modify, merge, publish, distribute, sublicense,
// and/or sell copies of the Software, and to permit persons to whom the Software
// is furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO
// THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
// LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
// OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
// WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
//
// This program does apply profiles to (some) JPEG files
#include "utils.h"
#include "jpeglib.h"
#include "iccjpeg.h"
// Flags
static cmsBool BlackPointCompensation = FALSE;
static cmsBool IgnoreEmbedded = FALSE;
static cmsBool GamutCheck = FALSE;
static cmsBool lIsITUFax = FALSE;
static cmsBool lIsPhotoshopApp13 = FALSE;
static cmsBool lIsEXIF;
static cmsBool lIsDeviceLink = FALSE;
static cmsBool EmbedProfile = FALSE;
static const char* SaveEmbedded = NULL;
static int Intent = INTENT_PERCEPTUAL;
static int ProofingIntent = INTENT_PERCEPTUAL;
static int PrecalcMode = 1;
static int jpegQuality = 75;
static cmsFloat64Number ObserverAdaptationState = 0;
static char *cInpProf = NULL;
static char *cOutProf = NULL;
static char *cProofing = NULL;
static FILE * InFile;
static FILE * OutFile;
static struct jpeg_decompress_struct Decompressor;
static struct jpeg_compress_struct Compressor;
static struct my_error_mgr {
struct jpeg_error_mgr pub; // "public" fields
void* Cargo; // "private" fields
} ErrorHandler;
cmsUInt16Number Alarm[4] = {128,128,128,0};
// Out of mem
static
void OutOfMem(size_t size)
{
FatalError("Out of memory on allocating %d bytes.", size);
}
static
void my_error_exit (j_common_ptr cinfo)
{
char buffer[JMSG_LENGTH_MAX];
(*cinfo->err->format_message) (cinfo, buffer);
FatalError(buffer);
}
/*
Definition of the APPn Markers Defined for continuous-tone G3FAX
The application code APP1 initiates identification of the image as
a G3FAX application and defines the spatial resolution and subsampling.
This marker directly follows the SOI marker. The data format will be as follows:
X'FFE1' (APP1), length, FAX identifier, version, spatial resolution.
The above terms are defined as follows:
Length: (Two octets) Total APP1 field octet count including the octet count itself, but excluding the APP1
marker.
FAX identifier: (Six octets) X'47', X'33', X'46', X'41', X'58', X'00'. This X'00'-terminated string "G3FAX"
uniquely identifies this APP1 marker.
Version: (Two octets) X'07CA'. This string specifies the year of approval of the standard, for identification
in the case of future revision (for example, 1994).
Spatial Resolution: (Two octets) Lightness pixel density in pels/25.4 mm. The basic value is 200. Allowed values are
100, 200, 300, 400, 600 and 1200 pels/25.4 mm, with square (or equivalent) pels.
NOTE û The functional equivalence of inch-based and mm-based resolutions is maintained. For example, the 200 ╫ 200
*/
static
cmsBool IsITUFax(jpeg_saved_marker_ptr ptr)
{
while (ptr)
{
if (ptr -> marker == (JPEG_APP0 + 1) && ptr -> data_length > 5) {
const char* data = (const char*) ptr -> data;
if (strcmp(data, "G3FAX") == 0) return TRUE;
}
ptr = ptr -> next;
}
return FALSE;
}
// Save a ITU T.42/Fax marker with defaults on boundaries. This is the only mode we support right now.
static
void SetITUFax(j_compress_ptr cinfo)
{
unsigned char Marker[] = "G3FAX\x00\0x07\xCA\x00\xC8";
jpeg_write_marker(cinfo, (JPEG_APP0 + 1), Marker, 10);
}
// Build a profile for decoding ITU T.42/Fax JPEG streams.
// The profile has an additional ability in the input direction of
// gamut compress values between 85 < a < -85 and -75 < b < 125. This conforms
// the default range for ITU/T.42 -- See RFC 2301, section 6.2.3 for details
// L* = [0, 100]
// a* = [û85, 85]
// b* = [û75, 125]
// These functions does convert the encoding of ITUFAX to floating point
// and vice-versa. No gamut mapping is performed yet.
static
void ITU2Lab(const cmsUInt16Number In[3], cmsCIELab* Lab)
{
Lab -> L = (double) In[0] / 655.35;
Lab -> a = (double) 170.* (In[1] - 32768.) / 65535.;
Lab -> b = (double) 200.* (In[2] - 24576.) / 65535.;
}
static
void Lab2ITU(const cmsCIELab* Lab, cmsUInt16Number Out[3])
{
Out[0] = (cmsUInt16Number) floor((double) (Lab -> L / 100.)* 65535. );
Out[1] = (cmsUInt16Number) floor((double) (Lab -> a / 170.)* 65535. + 32768. );
Out[2] = (cmsUInt16Number) floor((double) (Lab -> b / 200.)* 65535. + 24576. );
}
// These are the samplers-- They are passed as callbacks to cmsStageSampleCLut16bit()
// then, cmsSample3DGrid() will sweel whole Lab gamut calling these functions
// once for each node. In[] will contain the Lab PCS value to convert to ITUFAX
// on PCS2ITU, or the ITUFAX value to convert to Lab in ITU2PCS
// You can change the number of sample points if desired, the algorithm will
// remain same. 33 points gives good accurancy, but you can reduce to 22 or less
// is space is critical
#define GRID_POINTS 33
static
int PCS2ITU(register const cmsUInt16Number In[], register cmsUInt16Number Out[], register void* Cargo)
{
cmsCIELab Lab;
cmsLabEncoded2Float(&Lab, In);
cmsDesaturateLab(&Lab, 85, -85, 125, -75); // This function does the necessary gamut remapping
Lab2ITU(&Lab, Out);
return TRUE;
UTILS_UNUSED_PARAMETER(Cargo);
}
static
int ITU2PCS( register const cmsUInt16Number In[], register cmsUInt16Number Out[], register void* Cargo)
{
cmsCIELab Lab;
ITU2Lab(In, &Lab);
cmsFloat2LabEncoded(Out, &Lab);
return TRUE;
UTILS_UNUSED_PARAMETER(Cargo);
}
// This function does create the virtual input profile, which decodes ITU to the profile connection space
static
cmsHPROFILE CreateITU2PCS_ICC(void)
{
cmsHPROFILE hProfile;
cmsPipeline* AToB0;
cmsStage* ColorMap;
AToB0 = cmsPipelineAlloc(0, 3, 3);
if (AToB0 == NULL) return NULL;
ColorMap = cmsStageAllocCLut16bit(0, GRID_POINTS, 3, 3, NULL);
if (ColorMap == NULL) return NULL;
cmsPipelineInsertStage(AToB0, cmsAT_BEGIN, ColorMap);
cmsStageSampleCLut16bit(ColorMap, ITU2PCS, NULL, 0);
hProfile = cmsCreateProfilePlaceholder(0);
if (hProfile == NULL) {
cmsPipelineFree(AToB0);
return NULL;
}
cmsWriteTag(hProfile, cmsSigAToB0Tag, AToB0);
cmsSetColorSpace(hProfile, cmsSigLabData);
cmsSetPCS(hProfile, cmsSigLabData);
cmsSetDeviceClass(hProfile, cmsSigColorSpaceClass);
cmsPipelineFree(AToB0);
return hProfile;
}
// This function does create the virtual output profile, with the necessary gamut mapping
static
cmsHPROFILE CreatePCS2ITU_ICC(void)
{
cmsHPROFILE hProfile;
cmsPipeline* BToA0;
cmsStage* ColorMap;
BToA0 = cmsPipelineAlloc(0, 3, 3);
if (BToA0 == NULL) return NULL;
ColorMap = cmsStageAllocCLut16bit(0, GRID_POINTS, 3, 3, NULL);
if (ColorMap == NULL) return NULL;
cmsPipelineInsertStage(BToA0, cmsAT_BEGIN, ColorMap);
cmsStageSampleCLut16bit(ColorMap, PCS2ITU, NULL, 0);
hProfile = cmsCreateProfilePlaceholder(0);
if (hProfile == NULL) {
cmsPipelineFree(BToA0);
return NULL;
}
cmsWriteTag(hProfile, cmsSigBToA0Tag, BToA0);
cmsSetColorSpace(hProfile, cmsSigLabData);
cmsSetPCS(hProfile, cmsSigLabData);
cmsSetDeviceClass(hProfile, cmsSigColorSpaceClass);
cmsPipelineFree(BToA0);
return hProfile;
}
#define PS_FIXED_TO_FLOAT(h, l) ((float) (h) + ((float) (l)/(1<<16)))
static
cmsBool ProcessPhotoshopAPP13(JOCTET FAR *data, int datalen)
{
int i;
for (i = 14; i < datalen; )
{
long len;
unsigned int type;
if (!(GETJOCTET(data[i] ) == 0x38 &&
GETJOCTET(data[i+1]) == 0x42 &&
GETJOCTET(data[i+2]) == 0x49 &&
GETJOCTET(data[i+3]) == 0x4D)) break; // Not recognized
i += 4; // identifying string
type = (unsigned int) (GETJOCTET(data[i]<<8) + GETJOCTET(data[i+1]));
i += 2; // resource type
i += GETJOCTET(data[i]) + ((GETJOCTET(data[i]) & 1) ? 1 : 2); // resource name
len = ((((GETJOCTET(data[i]<<8) + GETJOCTET(data[i+1]))<<8) +
GETJOCTET(data[i+2]))<<8) + GETJOCTET(data[i+3]);
i += 4; // Size
if (type == 0x03ED && len >= 16) {
Decompressor.X_density = (UINT16) PS_FIXED_TO_FLOAT(GETJOCTET(data[i]<<8) + GETJOCTET(data[i+1]),
GETJOCTET(data[i+2]<<8) + GETJOCTET(data[i+3]));
Decompressor.Y_density = (UINT16) PS_FIXED_TO_FLOAT(GETJOCTET(data[i+8]<<8) + GETJOCTET(data[i+9]),
GETJOCTET(data[i+10]<<8) + GETJOCTET(data[i+11]));
// Set the density unit to 1 since the
// Vertical and Horizontal resolutions
// are specified in Pixels per inch
Decompressor.density_unit = 0x01;
return TRUE;
}
i += len + ((len & 1) ? 1 : 0); // Alignment
}
return FALSE;
}
static
cmsBool HandlePhotoshopAPP13(jpeg_saved_marker_ptr ptr)
{
while (ptr) {
if (ptr -> marker == (JPEG_APP0 + 13) && ptr -> data_length > 9)
{
JOCTET FAR* data = ptr -> data;
if(GETJOCTET(data[0]) == 0x50 &&
GETJOCTET(data[1]) == 0x68 &&
GETJOCTET(data[2]) == 0x6F &&
GETJOCTET(data[3]) == 0x74 &&
GETJOCTET(data[4]) == 0x6F &&
GETJOCTET(data[5]) == 0x73 &&
GETJOCTET(data[6]) == 0x68 &&
GETJOCTET(data[7]) == 0x6F &&
GETJOCTET(data[8]) == 0x70) {
ProcessPhotoshopAPP13(data, ptr -> data_length);
return TRUE;
}
}
ptr = ptr -> next;
}
return FALSE;
}
typedef unsigned short uint16_t;
typedef unsigned char uint8_t;
typedef unsigned int uint32_t;
#define INTEL_BYTE_ORDER 0x4949
#define XRESOLUTION 0x011a
#define YRESOLUTION 0x011b
#define RESOLUTION_UNIT 0x128
// Read a 16-bit word
static
uint16_t read16(uint8_t* arr, int pos, int swapBytes)
{
uint8_t b1 = arr[pos];
uint8_t b2 = arr[pos+1];
return (swapBytes) ? ((b2 << 8) | b1) : ((b1 << 8) | b2);
}
// Read a 32-bit word
static
uint32_t read32(uint8_t* arr, int pos, int swapBytes)
{
if(!swapBytes) {
return (arr[pos] << 24) |
(arr[pos+1] << 16) |
(arr[pos+2] << 8) |
arr[pos+3];
}
return arr[pos] |
(arr[pos+1] << 8) |
(arr[pos+2] << 16) |
(arr[pos+3] << 24);
}
static
int read_tag(uint8_t* arr, int pos, int swapBytes, void* dest)
{
// Format should be 5 over here (rational)
uint32_t format = read16(arr, pos + 2, swapBytes);
// Components should be 1
uint32_t components = read32(arr, pos + 4, swapBytes);
// Points to the value
uint32_t offset;
// sanity
if (components != 1) return 0;
if (format == 3)
offset = pos + 8;
else
offset = read32(arr, pos + 8, swapBytes);
switch (format) {
case 5: // Rational
{
double num = read32(arr, offset, swapBytes);
double den = read32(arr, offset + 4, swapBytes);
*(double *) dest = num / den;
}
break;
case 3: // uint 16
*(int*) dest = read16(arr, offset, swapBytes);
break;
default: return 0;
}
return 1;
}
// Handler for EXIF data
static
cmsBool HandleEXIF(struct jpeg_decompress_struct* cinfo)
{
jpeg_saved_marker_ptr ptr;
uint32_t ifd_ofs;
int pos = 0, swapBytes = 0;
uint32_t i, numEntries;
double XRes = -1, YRes = -1;
int Unit = 2; // Inches
for (ptr = cinfo ->marker_list; ptr; ptr = ptr ->next) {
if ((ptr ->marker == JPEG_APP0+1) && ptr ->data_length > 6) {
JOCTET FAR* data = ptr -> data;
if (memcmp(data, "Exif\0\0", 6) == 0) {
data += 6; // Skip EXIF marker
// 8 byte TIFF header
// first two determine byte order
pos = 0;
if (read16(data, pos, 0) == INTEL_BYTE_ORDER) {
swapBytes = 1;
}
pos += 2;
// next two bytes are always 0x002A (TIFF version)
pos += 2;
// offset to Image File Directory (includes the previous 8 bytes)
ifd_ofs = read32(data, pos, swapBytes);
// Search the directory for resolution tags
numEntries = read16(data, ifd_ofs, swapBytes);
for (i=0; i < numEntries; i++) {
uint32_t entryOffset = ifd_ofs + 2 + (12 * i);
uint32_t tag = read16(data, entryOffset, swapBytes);
switch (tag) {
case RESOLUTION_UNIT:
if (!read_tag(data, entryOffset, swapBytes, &Unit)) return FALSE;
break;
case XRESOLUTION:
if (!read_tag(data, entryOffset, swapBytes, &XRes)) return FALSE;
break;
case YRESOLUTION:
if (!read_tag(data, entryOffset, swapBytes, &YRes)) return FALSE;
break;
default:;
}
}
// Proceed if all found
if (XRes != -1 && YRes != -1)
{
// 1 = None
// 2 = inches
// 3 = cm
switch (Unit) {
case 2:
cinfo ->X_density = (UINT16) floor(XRes + 0.5);
cinfo ->Y_density = (UINT16) floor(YRes + 0.5);
break;
case 1:
cinfo ->X_density = (UINT16) floor(XRes * 2.54 + 0.5);
cinfo ->Y_density = (UINT16) floor(YRes * 2.54 + 0.5);
break;
default: return FALSE;
}
cinfo ->density_unit = 1; /* 1 for dots/inch, or 2 for dots/cm.*/
}
}
}
}
return FALSE;
}
static
cmsBool OpenInput(const char* FileName)
{
int m;
lIsITUFax = FALSE;
InFile = fopen(FileName, "rb");
if (InFile == NULL) {
FatalError("Cannot open '%s'", FileName);
}
// Now we can initialize the JPEG decompression object.
Decompressor.err = jpeg_std_error(&ErrorHandler.pub);
ErrorHandler.pub.error_exit = my_error_exit;
ErrorHandler.pub.output_message = my_error_exit;
jpeg_create_decompress(&Decompressor);
jpeg_stdio_src(&Decompressor, InFile);
for (m = 0; m < 16; m++)
jpeg_save_markers(&Decompressor, JPEG_APP0 + m, 0xFFFF);
// setup_read_icc_profile(&Decompressor);
fseek(InFile, 0, SEEK_SET);
jpeg_read_header(&Decompressor, TRUE);
return TRUE;
}
static
cmsBool OpenOutput(const char* FileName)
{
OutFile = fopen(FileName, "wb");
if (OutFile == NULL) {
FatalError("Cannot create '%s'", FileName);
}
Compressor.err = jpeg_std_error(&ErrorHandler.pub);
ErrorHandler.pub.error_exit = my_error_exit;
ErrorHandler.pub.output_message = my_error_exit;
Compressor.input_components = Compressor.num_components = 4;
jpeg_create_compress(&Compressor);
jpeg_stdio_dest(&Compressor, OutFile);
return TRUE;
}
static
cmsBool Done(void)
{
jpeg_destroy_decompress(&Decompressor);
jpeg_destroy_compress(&Compressor);
return fclose(InFile) + fclose(OutFile);
}
// Build up the pixeltype descriptor
static
cmsUInt32Number GetInputPixelType(void)
{
int space, bps, extra, ColorChannels, Flavor;
lIsITUFax = IsITUFax(Decompressor.marker_list);
lIsPhotoshopApp13 = HandlePhotoshopAPP13(Decompressor.marker_list);
lIsEXIF = HandleEXIF(&Decompressor);
ColorChannels = Decompressor.num_components;
extra = 0; // Alpha = None
bps = 1; // 8 bits
Flavor = 0; // Vanilla
if (lIsITUFax) {
space = PT_Lab;
Decompressor.out_color_space = JCS_YCbCr; // Fake to don't touch
}
else
switch (Decompressor.jpeg_color_space) {
case JCS_GRAYSCALE: // monochrome
space = PT_GRAY;
Decompressor.out_color_space = JCS_GRAYSCALE;
break;
case JCS_RGB: // red/green/blue
space = PT_RGB;
Decompressor.out_color_space = JCS_RGB;
break;
case JCS_YCbCr: // Y/Cb/Cr (also known as YUV)
space = PT_RGB; // Let IJG code to do the conversion
Decompressor.out_color_space = JCS_RGB;
break;
case JCS_CMYK: // C/M/Y/K
space = PT_CMYK;
Decompressor.out_color_space = JCS_CMYK;
if (Decompressor.saw_Adobe_marker) // Adobe keeps CMYK inverted, so change flavor
Flavor = 1; // from vanilla to chocolate
break;
case JCS_YCCK: // Y/Cb/Cr/K
space = PT_CMYK;
Decompressor.out_color_space = JCS_CMYK;
if (Decompressor.saw_Adobe_marker) // ditto
Flavor = 1;
break;
default:
FatalError("Unsupported color space (0x%x)", Decompressor.jpeg_color_space);
return 0;
}
return (EXTRA_SH(extra)|CHANNELS_SH(ColorChannels)|BYTES_SH(bps)|COLORSPACE_SH(space)|FLAVOR_SH(Flavor));
}
// Rearrange pixel type to build output descriptor
static
cmsUInt32Number ComputeOutputFormatDescriptor(cmsUInt32Number dwInput, int OutColorSpace)
{
int IsPlanar = T_PLANAR(dwInput);
int Channels = 0;
int Flavor = 0;
switch (OutColorSpace) {
case PT_GRAY:
Channels = 1;
break;
case PT_RGB:
case PT_CMY:
case PT_Lab:
case PT_YUV:
case PT_YCbCr:
Channels = 3;
break;
case PT_CMYK:
if (Compressor.write_Adobe_marker) // Adobe keeps CMYK inverted, so change flavor to chocolate
Flavor = 1;
Channels = 4;
break;
default:
FatalError("Unsupported output color space");
}
return (COLORSPACE_SH(OutColorSpace)|PLANAR_SH(IsPlanar)|CHANNELS_SH(Channels)|BYTES_SH(1)|FLAVOR_SH(Flavor));
}
// Equivalence between ICC color spaces and lcms color spaces
static
int GetProfileColorSpace(cmsHPROFILE hProfile)
{
cmsColorSpaceSignature ProfileSpace = cmsGetColorSpace(hProfile);
return _cmsLCMScolorSpace(ProfileSpace);
}
static
int GetDevicelinkColorSpace(cmsHPROFILE hProfile)
{
cmsColorSpaceSignature ProfileSpace = cmsGetPCS(hProfile);
return _cmsLCMScolorSpace(ProfileSpace);
}
// From TRANSUPP
static
void jcopy_markers_execute(j_decompress_ptr srcinfo, j_compress_ptr dstinfo)
{
jpeg_saved_marker_ptr marker;
/* In the current implementation, we don't actually need to examine the
* option flag here; we just copy everything that got saved.
* But to avoid confusion, we do not output JFIF and Adobe APP14 markers
* if the encoder library already wrote one.
*/
for (marker = srcinfo->marker_list; marker != NULL; marker = marker->next) {
if (dstinfo->write_JFIF_header &&
marker->marker == JPEG_APP0 &&
marker->data_length >= 5 &&
GETJOCTET(marker->data[0]) == 0x4A &&
GETJOCTET(marker->data[1]) == 0x46 &&
GETJOCTET(marker->data[2]) == 0x49 &&
GETJOCTET(marker->data[3]) == 0x46 &&
GETJOCTET(marker->data[4]) == 0)
continue; /* reject duplicate JFIF */
if (dstinfo->write_Adobe_marker &&
marker->marker == JPEG_APP0+14 &&
marker->data_length >= 5 &&
GETJOCTET(marker->data[0]) == 0x41 &&
GETJOCTET(marker->data[1]) == 0x64 &&
GETJOCTET(marker->data[2]) == 0x6F &&
GETJOCTET(marker->data[3]) == 0x62 &&
GETJOCTET(marker->data[4]) == 0x65)
continue; /* reject duplicate Adobe */
jpeg_write_marker(dstinfo, marker->marker,
marker->data, marker->data_length);
}
}
static
void WriteOutputFields(int OutputColorSpace)
{
J_COLOR_SPACE in_space, jpeg_space;
int components;
switch (OutputColorSpace) {
case PT_GRAY: in_space = jpeg_space = JCS_GRAYSCALE;
components = 1;
break;
case PT_RGB: in_space = JCS_RGB;
jpeg_space = JCS_YCbCr;
components = 3;
break; // red/green/blue
case PT_YCbCr: in_space = jpeg_space = JCS_YCbCr;
components = 3;
break; // Y/Cb/Cr (also known as YUV)
case PT_CMYK: in_space = JCS_CMYK;
jpeg_space = JCS_YCCK;
components = 4;
break; // C/M/Y/components
case PT_Lab: in_space = jpeg_space = JCS_YCbCr;
components = 3;
break; // Fake to don't touch
default:
FatalError("Unsupported output color space");
return;
}
if (jpegQuality >= 100) {
// avoid destructive conversion when asking for lossless compression
jpeg_space = in_space;
}
Compressor.in_color_space = in_space;
Compressor.jpeg_color_space = jpeg_space;
Compressor.input_components = Compressor.num_components = components;
jpeg_set_defaults(&Compressor);
jpeg_set_colorspace(&Compressor, jpeg_space);
// Make sure to pass resolution through
if (OutputColorSpace == PT_CMYK)
Compressor.write_JFIF_header = 1;
// Avoid subsampling on high quality factor
jpeg_set_quality(&Compressor, jpegQuality, 1);
if (jpegQuality >= 70) {
int i;
for(i=0; i < Compressor.num_components; i++) {
Compressor.comp_info[i].h_samp_factor = 1;
Compressor.comp_info[i].v_samp_factor = 1;
}
}
}
static
void DoEmbedProfile(const char* ProfileFile)
{
FILE* f;
size_t size, EmbedLen;
cmsUInt8Number* EmbedBuffer;
f = fopen(ProfileFile, "rb");
if (f == NULL) return;
size = cmsfilelength(f);
EmbedBuffer = (cmsUInt8Number*) malloc(size + 1);
EmbedLen = fread(EmbedBuffer, 1, size, f);
fclose(f);
EmbedBuffer[EmbedLen] = 0;
write_icc_profile (&Compressor, EmbedBuffer, EmbedLen);
free(EmbedBuffer);
}
static
int DoTransform(cmsHTRANSFORM hXForm, int OutputColorSpace)
{
JSAMPROW ScanLineIn;
JSAMPROW ScanLineOut;
//Preserve resolution values from the original
// (Thanks to Robert Bergs for finding out this bug)
Compressor.density_unit = Decompressor.density_unit;
Compressor.X_density = Decompressor.X_density;
Compressor.Y_density = Decompressor.Y_density;
// Compressor.write_JFIF_header = 1;
jpeg_start_decompress(&Decompressor);
jpeg_start_compress(&Compressor, TRUE);
if (OutputColorSpace == PT_Lab)
SetITUFax(&Compressor);
// Embed the profile if needed
if (EmbedProfile && cOutProf)
DoEmbedProfile(cOutProf);
ScanLineIn = (JSAMPROW) malloc(Decompressor.output_width * Decompressor.num_components);
ScanLineOut = (JSAMPROW) malloc(Compressor.image_width * Compressor.num_components);
while (Decompressor.output_scanline <
Decompressor.output_height) {
jpeg_read_scanlines(&Decompressor, &ScanLineIn, 1);
cmsDoTransform(hXForm, ScanLineIn, ScanLineOut, Decompressor.output_width);
jpeg_write_scanlines(&Compressor, &ScanLineOut, 1);
}
free(ScanLineIn);
free(ScanLineOut);
jpeg_finish_decompress(&Decompressor);
jpeg_finish_compress(&Compressor);
return TRUE;
}
// Transform one image
static
int TransformImage(char *cDefInpProf, char *cOutProf)
{
cmsHPROFILE hIn, hOut, hProof;
cmsHTRANSFORM xform;
cmsUInt32Number wInput, wOutput;
int OutputColorSpace;
cmsUInt32Number dwFlags = 0;
cmsUInt32Number EmbedLen;
cmsUInt8Number* EmbedBuffer;
cmsSetAdaptationState(ObserverAdaptationState);
if (BlackPointCompensation) {
dwFlags |= cmsFLAGS_BLACKPOINTCOMPENSATION;
}
switch (PrecalcMode) {
case 0: dwFlags |= cmsFLAGS_NOOPTIMIZE; break;
case 2: dwFlags |= cmsFLAGS_HIGHRESPRECALC; break;
case 3: dwFlags |= cmsFLAGS_LOWRESPRECALC; break;
default:;
}
if (GamutCheck) {
dwFlags |= cmsFLAGS_GAMUTCHECK;
cmsSetAlarmCodes(Alarm);
}
// Take input color space
wInput = GetInputPixelType();
if (lIsDeviceLink) {
hIn = cmsOpenProfileFromFile(cDefInpProf, "r");
hOut = NULL;
hProof = NULL;
}
else {
if (!IgnoreEmbedded && read_icc_profile(&Decompressor, &EmbedBuffer, &EmbedLen))
{
hIn = cmsOpenProfileFromMem(EmbedBuffer, EmbedLen);
if (Verbose) {
fprintf(stdout, " (Embedded profile found)\n");
PrintProfileInformation(hIn);
fflush(stdout);
}
if (hIn != NULL && SaveEmbedded != NULL)
SaveMemoryBlock(EmbedBuffer, EmbedLen, SaveEmbedded);
free(EmbedBuffer);
}
else
{
// Default for ITU/Fax
if (cDefInpProf == NULL && T_COLORSPACE(wInput) == PT_Lab)
cDefInpProf = "*Lab";
if (cDefInpProf != NULL && cmsstrcasecmp(cDefInpProf, "*lab") == 0)
hIn = CreateITU2PCS_ICC();
else
hIn = OpenStockProfile(0, cDefInpProf);
}
if (cOutProf != NULL && cmsstrcasecmp(cOutProf, "*lab") == 0)
hOut = CreatePCS2ITU_ICC();
else
hOut = OpenStockProfile(0, cOutProf);
hProof = NULL;
if (cProofing != NULL) {
hProof = OpenStockProfile(0, cProofing);
if (hProof == NULL) {
FatalError("Proofing profile couldn't be read.");
}
dwFlags |= cmsFLAGS_SOFTPROOFING;
}
}
if (!hIn)
FatalError("Input profile couldn't be read.");
if (!hOut)
FatalError("Output profile couldn't be read.");
// Assure both, input profile and input JPEG are on same colorspace
if (cmsGetColorSpace(hIn) != _cmsICCcolorSpace(T_COLORSPACE(wInput)))
FatalError("Input profile is not operating in proper color space");
// Output colorspace is given by output profile
if (lIsDeviceLink) {
OutputColorSpace = GetDevicelinkColorSpace(hIn);
}
else {
OutputColorSpace = GetProfileColorSpace(hOut);
}
jpeg_copy_critical_parameters(&Decompressor, &Compressor);
WriteOutputFields(OutputColorSpace);
wOutput = ComputeOutputFormatDescriptor(wInput, OutputColorSpace);
xform = cmsCreateProofingTransform(hIn, wInput,
hOut, wOutput,
hProof, Intent,
ProofingIntent, dwFlags);
if (xform == NULL)
FatalError("Cannot transform by using the profiles");
DoTransform(xform, OutputColorSpace);
jcopy_markers_execute(&Decompressor, &Compressor);
cmsDeleteTransform(xform);
cmsCloseProfile(hIn);
cmsCloseProfile(hOut);
if (hProof) cmsCloseProfile(hProof);
return 1;
}
// Simply print help
static
void Help(int level)
{
fprintf(stderr, "little cms ICC profile applier for JPEG - v3.2 [LittleCMS %2.2f]\n\n", LCMS_VERSION / 1000.0);
switch(level) {
default:
case 0:
fprintf(stderr, "usage: jpgicc [flags] input.jpg output.jpg\n");
fprintf(stderr, "\nflags:\n\n");
fprintf(stderr, "%cv - Verbose\n", SW);
fprintf(stderr, "%ci<profile> - Input profile (defaults to sRGB)\n", SW);
fprintf(stderr, "%co<profile> - Output profile (defaults to sRGB)\n", SW);
PrintRenderingIntents();
fprintf(stderr, "%cb - Black point compensation\n", SW);
fprintf(stderr, "%cd<0..1> - Observer adaptation state (abs.col. only)\n", SW);
fprintf(stderr, "%cn - Ignore embedded profile\n", SW);
fprintf(stderr, "%ce - Embed destination profile\n", SW);
fprintf(stderr, "%cs<new profile> - Save embedded profile as <new profile>\n", SW);
fprintf(stderr, "\n");
fprintf(stderr, "%cc<0,1,2,3> - Precalculates transform (0=Off, 1=Normal, 2=Hi-res, 3=LoRes) [defaults to 1]\n", SW);
fprintf(stderr, "\n");
fprintf(stderr, "%cp<profile> - Soft proof profile\n", SW);
fprintf(stderr, "%cm<0,1,2,3> - SoftProof intent\n", SW);
fprintf(stderr, "%cg - Marks out-of-gamut colors on softproof\n", SW);
fprintf(stderr, "%c!<r>,<g>,<b> - Out-of-gamut marker channel values\n", SW);
fprintf(stderr, "\n");
fprintf(stderr, "%cq<0..100> - Output JPEG quality\n", SW);
fprintf(stderr, "\n");
fprintf(stderr, "%ch<0,1,2,3> - More help\n", SW);
break;
case 1:
fprintf(stderr, "Examples:\n\n"
"To color correct from scanner to sRGB:\n"
"\tjpgicc %ciscanner.icm in.jpg out.jpg\n"
"To convert from monitor1 to monitor2:\n"
"\tjpgicc %cimon1.icm %comon2.icm in.jpg out.jpg\n"
"To make a CMYK separation:\n"
"\tjpgicc %coprinter.icm inrgb.jpg outcmyk.jpg\n"
"To recover sRGB from a CMYK separation:\n"
"\tjpgicc %ciprinter.icm incmyk.jpg outrgb.jpg\n"
"To convert from CIELab ITU/Fax JPEG to sRGB\n"
"\tjpgicc in.jpg out.jpg\n\n",
SW, SW, SW, SW, SW);
break;
case 2:
PrintBuiltins();
break;
case 3:
fprintf(stderr, "This program is intended to be a demo of the little cms\n"
"engine. Both lcms and this program are freeware. You can\n"
"obtain both in source code at http://www.littlecms.com\n"
"For suggestions, comments, bug reports etc. send mail to\n"
"marti@littlecms.com\n\n");
break;
}
exit(0);
}
// The toggles stuff
static
void HandleSwitches(int argc, char *argv[])
{
int s;
while ((s=xgetopt(argc,argv,"bBnNvVGgh:H:i:I:o:O:P:p:t:T:c:C:Q:q:M:m:L:l:eEs:S:!:D:d:")) != EOF) {
switch (s)
{
case 'b':
case 'B':
BlackPointCompensation = TRUE;
break;
case 'd':
case 'D': ObserverAdaptationState = atof(xoptarg);
if (ObserverAdaptationState < 0 ||
ObserverAdaptationState > 1.0)
FatalError("Adaptation state should be 0..1");
break;
case 'v':
case 'V':
Verbose = TRUE;
break;
case 'i':
case 'I':
if (lIsDeviceLink)
FatalError("Device-link already specified");
cInpProf = xoptarg;
break;
case 'o':
case 'O':
if (lIsDeviceLink)
FatalError("Device-link already specified");
cOutProf = xoptarg;
break;
case 'l':
case 'L':
if (cInpProf != NULL || cOutProf != NULL)
FatalError("input/output profiles already specified");
cInpProf = xoptarg;
lIsDeviceLink = TRUE;
break;
case 'p':
case 'P':
cProofing = xoptarg;
break;
case 't':
case 'T':
Intent = atoi(xoptarg);
break;
case 'N':
case 'n':
IgnoreEmbedded = TRUE;
break;
case 'e':
case 'E':
EmbedProfile = TRUE;
break;
case 'g':
case 'G':
GamutCheck = TRUE;
break;
case 'c':
case 'C':
PrecalcMode = atoi(xoptarg);
if (PrecalcMode < 0 || PrecalcMode > 2)
FatalError("Unknown precalc mode '%d'", PrecalcMode);
break;
case 'H':
case 'h': {
int a = atoi(xoptarg);
Help(a);
}
break;
case 'q':
case 'Q':
jpegQuality = atoi(xoptarg);
if (jpegQuality > 100) jpegQuality = 100;
if (jpegQuality < 0) jpegQuality = 0;
break;
case 'm':
case 'M':
ProofingIntent = atoi(xoptarg);
break;
case 's':
case 'S': SaveEmbedded = xoptarg;
break;
case '!':
if (sscanf(xoptarg, "%hu,%hu,%hu", &Alarm[0], &Alarm[1], &Alarm[2]) == 3) {
int i;
for (i=0; i < 3; i++) {
Alarm[i] = (Alarm[i] << 8) | Alarm[i];
}
}
break;
default:
FatalError("Unknown option - run without args to see valid ones");
}
}
}
int main(int argc, char* argv[])
{
InitUtils("jpgicc");
HandleSwitches(argc, argv);
if ((argc - xoptind) != 2) {
Help(0);
}
OpenInput(argv[xoptind]);
OpenOutput(argv[xoptind+1]);
TransformImage(cInpProf, cOutProf);
if (Verbose) { fprintf(stdout, "\n"); fflush(stdout); }
Done();
return 0;
}
|
29 | ./little-cms/utils/jpgicc/iccjpeg.c | /*
* iccprofile.c
*
* This file provides code to read and write International Color Consortium
* (ICC) device profiles embedded in JFIF JPEG image files. The ICC has
* defined a standard format for including such data in JPEG "APP2" markers.
* The code given here does not know anything about the internal structure
* of the ICC profile data; it just knows how to put the profile data into
* a JPEG file being written, or get it back out when reading.
*
* This code depends on new features added to the IJG JPEG library as of
* IJG release 6b; it will not compile or work with older IJG versions.
*
* NOTE: this code would need surgery to work on 16-bit-int machines
* with ICC profiles exceeding 64K bytes in size. If you need to do that,
* change all the "unsigned int" variables to "INT32". You'll also need
* to find a malloc() replacement that can allocate more than 64K.
*/
#include "iccjpeg.h"
#include <stdlib.h> /* define malloc() */
/*
* Since an ICC profile can be larger than the maximum size of a JPEG marker
* (64K), we need provisions to split it into multiple markers. The format
* defined by the ICC specifies one or more APP2 markers containing the
* following data:
* Identifying string ASCII "ICC_PROFILE\0" (12 bytes)
* Marker sequence number 1 for first APP2, 2 for next, etc (1 byte)
* Number of markers Total number of APP2's used (1 byte)
* Profile data (remainder of APP2 data)
* Decoders should use the marker sequence numbers to reassemble the profile,
* rather than assuming that the APP2 markers appear in the correct sequence.
*/
#define ICC_MARKER (JPEG_APP0 + 2) /* JPEG marker code for ICC */
#define ICC_OVERHEAD_LEN 14 /* size of non-profile data in APP2 */
#define MAX_BYTES_IN_MARKER 65533 /* maximum data len of a JPEG marker */
#define MAX_DATA_BYTES_IN_MARKER (MAX_BYTES_IN_MARKER - ICC_OVERHEAD_LEN)
/*
* This routine writes the given ICC profile data into a JPEG file.
* It *must* be called AFTER calling jpeg_start_compress() and BEFORE
* the first call to jpeg_write_scanlines().
* (This ordering ensures that the APP2 marker(s) will appear after the
* SOI and JFIF or Adobe markers, but before all else.)
*/
void
write_icc_profile (j_compress_ptr cinfo,
const JOCTET *icc_data_ptr,
unsigned int icc_data_len)
{
unsigned int num_markers; /* total number of markers we'll write */
int cur_marker = 1; /* per spec, counting starts at 1 */
unsigned int length; /* number of bytes to write in this marker */
/* Calculate the number of markers we'll need, rounding up of course */
num_markers = icc_data_len / MAX_DATA_BYTES_IN_MARKER;
if (num_markers * MAX_DATA_BYTES_IN_MARKER != icc_data_len)
num_markers++;
while (icc_data_len > 0) {
/* length of profile to put in this marker */
length = icc_data_len;
if (length > MAX_DATA_BYTES_IN_MARKER)
length = MAX_DATA_BYTES_IN_MARKER;
icc_data_len -= length;
/* Write the JPEG marker header (APP2 code and marker length) */
jpeg_write_m_header(cinfo, ICC_MARKER,
(unsigned int) (length + ICC_OVERHEAD_LEN));
/* Write the marker identifying string "ICC_PROFILE" (null-terminated).
* We code it in this less-than-transparent way so that the code works
* even if the local character set is not ASCII.
*/
jpeg_write_m_byte(cinfo, 0x49);
jpeg_write_m_byte(cinfo, 0x43);
jpeg_write_m_byte(cinfo, 0x43);
jpeg_write_m_byte(cinfo, 0x5F);
jpeg_write_m_byte(cinfo, 0x50);
jpeg_write_m_byte(cinfo, 0x52);
jpeg_write_m_byte(cinfo, 0x4F);
jpeg_write_m_byte(cinfo, 0x46);
jpeg_write_m_byte(cinfo, 0x49);
jpeg_write_m_byte(cinfo, 0x4C);
jpeg_write_m_byte(cinfo, 0x45);
jpeg_write_m_byte(cinfo, 0x0);
/* Add the sequencing info */
jpeg_write_m_byte(cinfo, cur_marker);
jpeg_write_m_byte(cinfo, (int) num_markers);
/* Add the profile data */
while (length--) {
jpeg_write_m_byte(cinfo, *icc_data_ptr);
icc_data_ptr++;
}
cur_marker++;
}
}
/*
* Prepare for reading an ICC profile
*/
void
setup_read_icc_profile (j_decompress_ptr cinfo)
{
/* Tell the library to keep any APP2 data it may find */
jpeg_save_markers(cinfo, ICC_MARKER, 0xFFFF);
}
/*
* Handy subroutine to test whether a saved marker is an ICC profile marker.
*/
static boolean
marker_is_icc (jpeg_saved_marker_ptr marker)
{
return
marker->marker == ICC_MARKER &&
marker->data_length >= ICC_OVERHEAD_LEN &&
/* verify the identifying string */
GETJOCTET(marker->data[0]) == 0x49 &&
GETJOCTET(marker->data[1]) == 0x43 &&
GETJOCTET(marker->data[2]) == 0x43 &&
GETJOCTET(marker->data[3]) == 0x5F &&
GETJOCTET(marker->data[4]) == 0x50 &&
GETJOCTET(marker->data[5]) == 0x52 &&
GETJOCTET(marker->data[6]) == 0x4F &&
GETJOCTET(marker->data[7]) == 0x46 &&
GETJOCTET(marker->data[8]) == 0x49 &&
GETJOCTET(marker->data[9]) == 0x4C &&
GETJOCTET(marker->data[10]) == 0x45 &&
GETJOCTET(marker->data[11]) == 0x0;
}
/*
* See if there was an ICC profile in the JPEG file being read;
* if so, reassemble and return the profile data.
*
* TRUE is returned if an ICC profile was found, FALSE if not.
* If TRUE is returned, *icc_data_ptr is set to point to the
* returned data, and *icc_data_len is set to its length.
*
* IMPORTANT: the data at **icc_data_ptr has been allocated with malloc()
* and must be freed by the caller with free() when the caller no longer
* needs it. (Alternatively, we could write this routine to use the
* IJG library's memory allocator, so that the data would be freed implicitly
* at jpeg_finish_decompress() time. But it seems likely that many apps
* will prefer to have the data stick around after decompression finishes.)
*
* NOTE: if the file contains invalid ICC APP2 markers, we just silently
* return FALSE. You might want to issue an error message instead.
*/
boolean
read_icc_profile (j_decompress_ptr cinfo,
JOCTET **icc_data_ptr,
unsigned int *icc_data_len)
{
jpeg_saved_marker_ptr marker;
int num_markers = 0;
int seq_no;
JOCTET *icc_data;
unsigned int total_length;
#define MAX_SEQ_NO 255 /* sufficient since marker numbers are bytes */
char marker_present[MAX_SEQ_NO+1]; /* 1 if marker found */
unsigned int data_length[MAX_SEQ_NO+1]; /* size of profile data in marker */
unsigned int data_offset[MAX_SEQ_NO+1]; /* offset for data in marker */
*icc_data_ptr = NULL; /* avoid confusion if FALSE return */
*icc_data_len = 0;
/* This first pass over the saved markers discovers whether there are
* any ICC markers and verifies the consistency of the marker numbering.
*/
for (seq_no = 1; seq_no <= MAX_SEQ_NO; seq_no++)
marker_present[seq_no] = 0;
for (marker = cinfo->marker_list; marker != NULL; marker = marker->next) {
if (marker_is_icc(marker)) {
if (num_markers == 0)
num_markers = GETJOCTET(marker->data[13]);
else if (num_markers != GETJOCTET(marker->data[13]))
return FALSE; /* inconsistent num_markers fields */
seq_no = GETJOCTET(marker->data[12]);
if (seq_no <= 0 || seq_no > num_markers)
return FALSE; /* bogus sequence number */
if (marker_present[seq_no])
return FALSE; /* duplicate sequence numbers */
marker_present[seq_no] = 1;
data_length[seq_no] = marker->data_length - ICC_OVERHEAD_LEN;
}
}
if (num_markers == 0)
return FALSE;
/* Check for missing markers, count total space needed,
* compute offset of each marker's part of the data.
*/
total_length = 0;
for (seq_no = 1; seq_no <= num_markers; seq_no++) {
if (marker_present[seq_no] == 0)
return FALSE; /* missing sequence number */
data_offset[seq_no] = total_length;
total_length += data_length[seq_no];
}
if (total_length <= 0)
return FALSE; /* found only empty markers? */
/* Allocate space for assembled data */
icc_data = (JOCTET *) malloc(total_length * sizeof(JOCTET));
if (icc_data == NULL)
return FALSE; /* oops, out of memory */
/* and fill it in */
for (marker = cinfo->marker_list; marker != NULL; marker = marker->next) {
if (marker_is_icc(marker)) {
JOCTET FAR *src_ptr;
JOCTET *dst_ptr;
unsigned int length;
seq_no = GETJOCTET(marker->data[12]);
dst_ptr = icc_data + data_offset[seq_no];
src_ptr = marker->data + ICC_OVERHEAD_LEN;
length = data_length[seq_no];
while (length--) {
*dst_ptr++ = *src_ptr++;
}
}
}
*icc_data_ptr = icc_data;
*icc_data_len = total_length;
return TRUE;
}
|
30 | ./little-cms/utils/linkicc/linkicc.c | //---------------------------------------------------------------------------------
//
// Little Color Management System
// Copyright (c) 1998-2011 Marti Maria Saguer
//
// Permission is hereby granted, free of charge, to any person obtaining
// a copy of this software and associated documentation files (the "Software"),
// to deal in the Software without restriction, including without limitation
// the rights to use, copy, modify, merge, publish, distribute, sublicense,
// and/or sell copies of the Software, and to permit persons to whom the Software
// is furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO
// THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
// LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
// OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
// WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
//
//---------------------------------------------------------------------------------
#include "utils.h"
// ---------------------------------------------------------------------------------
static char* Description = "Devicelink profile";
static char* Copyright = "No copyright, use freely";
static int Intent = INTENT_PERCEPTUAL;
static char* cOutProf = "devicelink.icc";
static int PrecalcMode = 1;
static int NumOfGridPoints = 0;
static cmsFloat64Number ObserverAdaptationState = 1.0; // According ICC 4.2 this is the default
static cmsBool BlackPointCompensation = FALSE;
static cmsFloat64Number InkLimit = 400;
static cmsBool lUse8bits = FALSE;
static cmsBool TagResult = FALSE;
static cmsBool KeepLinearization = FALSE;
static cmsFloat64Number Version = 4.3;
// The manual
static
int Help(int level)
{
switch (level) {
default:
case 0:
fprintf(stderr, "\nlinkicc: Links profiles into a single devicelink.\n");
fprintf(stderr, "\n");
fprintf(stderr, "usage: linkicc [flags] <profiles>\n\n");
fprintf(stderr, "flags:\n\n");
fprintf(stderr, "%co<profile> - Output devicelink profile. [defaults to 'devicelink.icc']\n", SW);
PrintRenderingIntents();
fprintf(stderr, "%cc<0,1,2> - Precision (0=LowRes, 1=Normal, 2=Hi-res) [defaults to 1]\n", SW);
fprintf(stderr, "%cn<gridpoints> - Alternate way to set precision, number of CLUT points\n", SW);
fprintf(stderr, "%cd<description> - description text (quotes can be used)\n", SW);
fprintf(stderr, "%cy<copyright> - copyright notice (quotes can be used)\n", SW);
fprintf(stderr, "\n%ck<0..400> - Ink-limiting in %% (CMYK only)\n", SW);
fprintf(stderr, "%c8 - Creates 8-bit devicelink\n", SW);
fprintf(stderr, "%cx - Creatively, guess deviceclass of resulting profile.\n", SW);
fprintf(stderr, "%cb - Black point compensation\n", SW);
fprintf(stderr, "%ca<0..1> - Observer adaptation state (abs.col. only)\n\n", SW);
fprintf(stderr, "%cl - Use linearization curves (may affect accuracy)\n", SW);
fprintf(stderr, "%cr<v.r> - Profile version. (CAUTION: may change the profile implementation)\n", SW);
fprintf(stderr, "\n");
fprintf(stderr, "Colorspaces must be paired except Lab/XYZ, that can be interchanged.\n\n");
fprintf(stderr, "%ch<0,1,2,3> - More help\n", SW);
break;
case 1:
PrintBuiltins();
break;
case 2:
fprintf(stderr, "\nExamples:\n\n"
"To create 'devicelink.icm' from a.icc to b.icc:\n"
"\tlinkicc a.icc b.icc\n\n"
"To create 'out.icc' from sRGB to cmyk.icc:\n"
"\tlinkicc -o out.icc *sRGB cmyk.icc\n\n"
"To create a sRGB input profile working in Lab:\n"
"\tlinkicc -x -o sRGBLab.icc *sRGB *Lab\n\n"
"To create a XYZ -> sRGB output profile:\n"
"\tlinkicc -x -o sRGBLab.icc *XYZ *sRGB\n\n"
"To create a abstract profile doing softproof for cmyk.icc:\n"
"\tlinkicc -t1 -x -o softproof.icc *Lab cmyk.icc cmyk.icc *Lab\n\n"
"To create a 'grayer' sRGB input profile:\n"
"\tlinkicc -x -o grayer.icc *sRGB gray.icc gray.icc *Lab\n\n"
"To embed ink limiting into a cmyk output profile:\n"
"\tlinkicc -x -o cmyklimited.icc -k 250 cmyk.icc *Lab\n\n");
break;
case 3:
fprintf(stderr, "This program is intended to be a demo of the little cms\n"
"engine. Both lcms and this program are freeware. You can\n"
"obtain both in source code at http://www.littlecms.com\n"
"For suggestions, comments, bug reports etc. send mail to\n"
"info@littlecms.com\n\n");
}
exit(0);
}
// The toggles stuff
static
void HandleSwitches(int argc, char *argv[])
{
int s;
while ((s = xgetopt(argc,argv,"a:A:BbC:c:D:d:h:H:k:K:lLn:N:O:o:r:R:T:t:V:v:xX8y:Y:")) != EOF) {
switch (s) {
case 'a':
case 'A':
ObserverAdaptationState = atof(xoptarg);
if (ObserverAdaptationState < 0 ||
ObserverAdaptationState > 1.0)
FatalError("Adaptation state should be 0..1");
break;
case 'b':
case 'B':
BlackPointCompensation = TRUE;
break;
case 'c':
case 'C':
PrecalcMode = atoi(xoptarg);
if (PrecalcMode < 0 || PrecalcMode > 2) {
FatalError("Unknown precalc mode '%d'", PrecalcMode);
}
break;
case 'd':
case 'D':
// Doing that is correct and safe: Description points to memory allocated in the command line.
// same for Copyright and output devicelink.
Description = xoptarg;
break;
case 'h':
case 'H':
Help(atoi(xoptarg));
return;
case 'k':
case 'K':
InkLimit = atof(xoptarg);
if (InkLimit < 0.0 || InkLimit > 400.0) {
FatalError("Ink limit must be 0%%..400%%");
}
break;
case 'l':
case 'L': KeepLinearization = TRUE;
break;
case 'n':
case 'N':
if (PrecalcMode != 1) {
FatalError("Precalc mode already specified");
}
NumOfGridPoints = atoi(xoptarg);
break;
case 'o':
case 'O':
cOutProf = xoptarg;
break;
case 'r':
case 'R':
Version = atof(xoptarg);
if (Version < 2.0 || Version > 4.3) {
fprintf(stderr, "WARNING: lcms was not aware of this version, tag types may be wrong!\n");
}
break;
case 't':
case 'T':
Intent = atoi(xoptarg); // Will be validated latter on
break;
case 'V':
case 'v':
Verbose = atoi(xoptarg);
if (Verbose < 0 || Verbose > 3) {
FatalError("Unknown verbosity level '%d'", Verbose);
}
break;
case '8':
lUse8bits = TRUE;
break;
case 'y':
case 'Y':
Copyright = xoptarg;
break;
case 'x':
case 'X': TagResult = TRUE;
break;
default:
FatalError("Unknown option - run without args to see valid ones.\n");
}
}
}
// Set the copyright and description
static
cmsBool SetTextTags(cmsHPROFILE hProfile)
{
cmsMLU *DescriptionMLU, *CopyrightMLU;
cmsBool rc = FALSE;
cmsContext ContextID = cmsGetProfileContextID(hProfile);
DescriptionMLU = cmsMLUalloc(ContextID, 1);
CopyrightMLU = cmsMLUalloc(ContextID, 1);
if (DescriptionMLU == NULL || CopyrightMLU == NULL) goto Error;
if (!cmsMLUsetASCII(DescriptionMLU, "en", "US", Description)) goto Error;
if (!cmsMLUsetASCII(CopyrightMLU, "en", "US", Copyright)) goto Error;
if (!cmsWriteTag(hProfile, cmsSigProfileDescriptionTag, DescriptionMLU)) goto Error;
if (!cmsWriteTag(hProfile, cmsSigCopyrightTag, CopyrightMLU)) goto Error;
rc = TRUE;
Error:
if (DescriptionMLU)
cmsMLUfree(DescriptionMLU);
if (CopyrightMLU)
cmsMLUfree(CopyrightMLU);
return rc;
}
int main(int argc, char *argv[])
{
int i, nargs, rc;
cmsHPROFILE Profiles[257];
cmsHPROFILE hProfile;
cmsUInt32Number dwFlags;
cmsHTRANSFORM hTransform = NULL;
// Here we are
fprintf(stderr, "little cms ICC device link generator - v2.2 [LittleCMS %2.2f]\n", LCMS_VERSION / 1000.0);
fflush(stderr);
// Initialize
InitUtils("linkicc");
rc = 0;
// Get the options
HandleSwitches(argc, argv);
// How many profiles to link?
nargs = (argc - xoptind);
if (nargs < 1)
return Help(0);
if (nargs > 255) {
FatalError("Holy profile! what are you trying to do with so many profiles!?");
goto Cleanup;
}
// Open all profiles
memset(Profiles, 0, sizeof(Profiles));
for (i=0; i < nargs; i++) {
Profiles[i] = OpenStockProfile(0, argv[i + xoptind]);
if (Profiles[i] == NULL) goto Cleanup;
if (Verbose >= 1) {
PrintProfileInformation(Profiles[i]);
}
}
// Ink limiting
if (InkLimit != 400.0) {
cmsColorSpaceSignature EndingColorSpace = cmsGetColorSpace(Profiles[nargs-1]);
Profiles[nargs++] = cmsCreateInkLimitingDeviceLink(EndingColorSpace, InkLimit);
}
// Set the flags
dwFlags = cmsFLAGS_KEEP_SEQUENCE;
switch (PrecalcMode) {
case 0: dwFlags |= cmsFLAGS_LOWRESPRECALC; break;
case 2: dwFlags |= cmsFLAGS_HIGHRESPRECALC; break;
case 1:
if (NumOfGridPoints > 0)
dwFlags |= cmsFLAGS_GRIDPOINTS(NumOfGridPoints);
break;
default:
{
FatalError("Unknown precalculation mode '%d'", PrecalcMode);
goto Cleanup;
}
}
if (BlackPointCompensation)
dwFlags |= cmsFLAGS_BLACKPOINTCOMPENSATION;
if (TagResult)
dwFlags |= cmsFLAGS_GUESSDEVICECLASS;
if (KeepLinearization)
dwFlags |= cmsFLAGS_CLUT_PRE_LINEARIZATION|cmsFLAGS_CLUT_POST_LINEARIZATION;
if (lUse8bits) dwFlags |= cmsFLAGS_8BITS_DEVICELINK;
cmsSetAdaptationState(ObserverAdaptationState);
// Create the color transform. Specify 0 for the format is safe as the transform
// is intended to be used only for the devicelink.
hTransform = cmsCreateMultiprofileTransform(Profiles, nargs, 0, 0, Intent, dwFlags|cmsFLAGS_NOOPTIMIZE);
if (hTransform == NULL) {
FatalError("Transform creation failed");
goto Cleanup;
}
hProfile = cmsTransform2DeviceLink(hTransform, Version, dwFlags);
if (hProfile == NULL) {
FatalError("Devicelink creation failed");
goto Cleanup;
}
SetTextTags(hProfile);
cmsSetHeaderRenderingIntent(hProfile, Intent);
if (cmsSaveProfileToFile(hProfile, cOutProf)) {
if (Verbose > 0)
fprintf(stderr, "Ok");
}
else
FatalError("Error saving file!");
cmsCloseProfile(hProfile);
Cleanup:
if (hTransform != NULL) cmsDeleteTransform(hTransform);
for (i=0; i < nargs; i++) {
if (Profiles[i] != NULL) cmsCloseProfile(Profiles[i]);
}
return rc;
}
|
31 | ./little-cms/utils/matlab/icctrans.c | //
// Little cms
// Copyright (C) 1998-2010 Marti Maria, Ignacio Ruiz de Conejo
//
// Permission is hereby granted, free of charge, to any person obtaining
// a copy of this software and associated documentation files (the "Software"),
// to deal in the Software without restriction, including without limitation
// the rights to use, copy, modify, merge, publish, distribute, sublicense,
// and/or sell copies of the Software, and to permit persons to whom the Software
// is furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO
// THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
// LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
// OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
// WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
#include "mex.h"
#include "lcms2.h"
#include "string.h"
#include "stdarg.h"
// xgetopt() interface -----------------------------------------------------
static int xoptind;
static char *xoptarg;
static int xopterr;
static char *letP;
static char SW = '-';
// ------------------------------------------------------------------------
static int Verbose ; // Print some statistics
static char *cInProf; // Input profile
static char *cOutProf; // Output profile
static char *cProofing; // Softproofing profile
static int Intent; // Rendering Intent
static int ProofingIntent; // RI for proof
static int PrecalcMode; // 0 = Not, 1=Normal, 2=Accurate, 3=Fast
static cmsBool BlackPointCompensation;
static cmsBool lIsDeviceLink;
static cmsBool lMultiProfileChain; // Multiple profile chain
static cmsHPROFILE hInput, hOutput, hProof;
static cmsHTRANSFORM hColorTransform;
static cmsHPROFILE hProfiles[255];
static int nProfiles;
static cmsColorSpaceSignature InputColorSpace, OutputColorSpace;
static int OutputChannels, InputChannels, nBytesDepth;
// Error. Print error message and abort
static
cmsBool FatalError(const char *frm, ...)
{
va_list args;
char Buffer[1024];
va_start(args, frm);
vsprintf(Buffer, frm, args);
mexErrMsgTxt(Buffer);
va_end(args);
return FALSE;
}
// This is the handler passed to lcms
static
void MatLabErrorHandler(cmsContext ContextID, cmsUInt32Number ErrorCode,
const char *Text)
{
mexErrMsgTxt(Text);
}
//
// Parse the command line options, System V style.
//
static
void xoptinit()
{
xoptind = 1;
xopterr = 0;
letP = NULL;
}
static
int xgetopt(int argc, char *argv[], char *optionS)
{
unsigned char ch;
char *optP;
if (SW == 0) {
SW = '/';
}
if (argc > xoptind) {
if (letP == NULL) {
if ((letP = argv[xoptind]) == NULL ||
*(letP++) != SW) goto gopEOF;
if (*letP == SW) {
xoptind++; goto gopEOF;
}
}
if (0 == (ch = *(letP++))) {
xoptind++; goto gopEOF;
}
if (':' == ch || (optP = strchr(optionS, ch)) == NULL)
goto gopError;
if (':' == *(++optP)) {
xoptind++;
if (0 == *letP) {
if (argc <= xoptind) goto gopError;
letP = argv[xoptind++];
}
xoptarg = letP;
letP = NULL;
} else {
if (0 == *letP) {
xoptind++;
letP = NULL;
}
xoptarg = NULL;
}
return ch;
}
gopEOF:
xoptarg = letP = NULL;
return EOF;
gopError:
xoptarg = NULL;
if (xopterr)
FatalError ("get command line option");
return ('?');
}
// Return Mathlab type by depth
static
size_t SizeOfArrayType(const mxArray *Array)
{
switch (mxGetClassID(Array)) {
case mxINT8_CLASS: return 1;
case mxUINT8_CLASS: return 1;
case mxINT16_CLASS: return 2;
case mxUINT16_CLASS: return 2;
case mxSINGLE_CLASS: return 4;
case mxDOUBLE_CLASS: return 0; // Special case -- lcms handles double as size=0
default:
FatalError("Unsupported data type");
return 0;
}
}
// Get number of pixels of input array. Supported arrays are
// organized as NxMxD, being N and M the size of image and D the
// number of components.
static
size_t GetNumberOfPixels(const mxArray* In)
{
int nDimensions = mxGetNumberOfDimensions(In);
const int *Dimensions = mxGetDimensions(In);
switch (nDimensions) {
case 1: return 1; // It is just a spot color
case 2: return Dimensions[0]; // A scanline
case 3: return Dimensions[0]*Dimensions[1]; // A image
default:
FatalError("Unsupported array of %d dimensions", nDimensions);
return 0;
}
}
// Allocates the output array. Copies the input array modifying the pixel
// definition to match "OutputChannels".
static
mxArray* AllocateOutputArray(const mxArray* In, int OutputChannels)
{
mxArray* Out = mxDuplicateArray(In); // Make a "deep copy" of Input array
int nDimensions = mxGetNumberOfDimensions(In);
const int* Dimensions = mxGetDimensions(In);
int InputChannels = Dimensions[nDimensions-1];
// Modify pixel size only if needed
if (InputChannels != OutputChannels) {
int i, NewSize;
int *ModifiedDimensions = (int*) mxMalloc(nDimensions * sizeof(int));
memmove(ModifiedDimensions, Dimensions, nDimensions * sizeof(int));
ModifiedDimensions[nDimensions - 1] = OutputChannels;
switch (mxGetClassID(In)) {
case mxINT8_CLASS: NewSize = sizeof(char); break;
case mxUINT8_CLASS: NewSize = sizeof(unsigned char); break;
case mxINT16_CLASS: NewSize = sizeof(short); break;
case mxUINT16_CLASS: NewSize = sizeof(unsigned short); break;
default:
case mxDOUBLE_CLASS: NewSize = sizeof(double); break;
}
// NewSize = 1;
for (i=0; i < nDimensions; i++)
NewSize *= ModifiedDimensions[i];
mxSetDimensions(Out, ModifiedDimensions, nDimensions);
mxFree(ModifiedDimensions);
mxSetPr(Out, mxRealloc(mxGetPr(Out), NewSize));
}
return Out;
}
// Does create a format descriptor. "Bytes" is the sizeof type in bytes
//
// Bytes Meaning
// ------ --------
// 0 Floating point (double)
// 1 8-bit samples
// 2 16-bit samples
static
cmsUInt32Number MakeFormatDescriptor(cmsColorSpaceSignature ColorSpace, int Bytes)
{
int IsFloat = (Bytes == 0 || Bytes == 4) ? 1 : 0;
int Channels = cmsChannelsOf(ColorSpace);
return FLOAT_SH(IsFloat)|COLORSPACE_SH(_cmsLCMScolorSpace(ColorSpace))|BYTES_SH(Bytes)|CHANNELS_SH(Channels)|PLANAR_SH(1);
}
// Opens a profile or proper built-in
static
cmsHPROFILE OpenProfile(const char* File)
{
cmsContext ContextID = 0;
if (!File)
return cmsCreate_sRGBProfileTHR(ContextID);
if (cmsstrcasecmp(File, "*Lab2") == 0)
return cmsCreateLab2ProfileTHR(ContextID, NULL);
if (cmsstrcasecmp(File, "*Lab4") == 0)
return cmsCreateLab4ProfileTHR(ContextID, NULL);
if (cmsstrcasecmp(File, "*Lab") == 0)
return cmsCreateLab4ProfileTHR(ContextID, NULL);
if (cmsstrcasecmp(File, "*LabD65") == 0) {
cmsCIExyY D65xyY;
cmsWhitePointFromTemp( &D65xyY, 6504);
return cmsCreateLab4ProfileTHR(ContextID, &D65xyY);
}
if (cmsstrcasecmp(File, "*XYZ") == 0)
return cmsCreateXYZProfileTHR(ContextID);
if (cmsstrcasecmp(File, "*Gray22") == 0) {
cmsToneCurve* Curve = cmsBuildGamma(ContextID, 2.2);
cmsHPROFILE hProfile = cmsCreateGrayProfileTHR(ContextID, cmsD50_xyY(), Curve);
cmsFreeToneCurve(Curve);
return hProfile;
}
if (cmsstrcasecmp(File, "*Gray30") == 0) {
cmsToneCurve* Curve = cmsBuildGamma(ContextID, 3.0);
cmsHPROFILE hProfile = cmsCreateGrayProfileTHR(ContextID, cmsD50_xyY(), Curve);
cmsFreeToneCurve(Curve);
return hProfile;
}
if (cmsstrcasecmp(File, "*srgb") == 0)
return cmsCreate_sRGBProfileTHR(ContextID);
if (cmsstrcasecmp(File, "*null") == 0)
return cmsCreateNULLProfileTHR(ContextID);
if (cmsstrcasecmp(File, "*Lin2222") == 0) {
cmsToneCurve* Gamma = cmsBuildGamma(0, 2.2);
cmsToneCurve* Gamma4[4];
cmsHPROFILE hProfile;
Gamma4[0] = Gamma4[1] = Gamma4[2] = Gamma4[3] = Gamma;
hProfile = cmsCreateLinearizationDeviceLink(cmsSigCmykData, Gamma4);
cmsFreeToneCurve(Gamma);
return hProfile;
}
return cmsOpenProfileFromFileTHR(ContextID, File, "r");
}
static
cmsUInt32Number GetFlags()
{
cmsUInt32Number dwFlags = 0;
switch (PrecalcMode) {
case 0: dwFlags = cmsFLAGS_NOOPTIMIZE; break;
case 2: dwFlags = cmsFLAGS_HIGHRESPRECALC; break;
case 3: dwFlags = cmsFLAGS_LOWRESPRECALC; break;
case 1: break;
default: FatalError("Unknown precalculation mode '%d'", PrecalcMode);
}
if (BlackPointCompensation)
dwFlags |= cmsFLAGS_BLACKPOINTCOMPENSATION;
return dwFlags;
}
// Create transforms
static
void OpenTransforms(int argc, char *argv[])
{
cmsUInt32Number dwIn, dwOut, dwFlags;
if (lMultiProfileChain) {
int i;
cmsHTRANSFORM hTmp;
nProfiles = argc - xoptind;
for (i=0; i < nProfiles; i++) {
hProfiles[i] = OpenProfile(argv[i+xoptind]);
}
// Create a temporary devicelink
hTmp = cmsCreateMultiprofileTransform(hProfiles, nProfiles,
0, 0, Intent, GetFlags());
hInput = cmsTransform2DeviceLink(hTmp, 4.2, 0);
hOutput = NULL;
cmsDeleteTransform(hTmp);
InputColorSpace = cmsGetColorSpace(hInput);
OutputColorSpace = cmsGetPCS(hInput);
lIsDeviceLink = TRUE;
}
else
if (lIsDeviceLink) {
hInput = cmsOpenProfileFromFile(cInProf, "r");
hOutput = NULL;
InputColorSpace = cmsGetColorSpace(hInput);
OutputColorSpace = cmsGetPCS(hInput);
}
else {
hInput = OpenProfile(cInProf);
hOutput = OpenProfile(cOutProf);
InputColorSpace = cmsGetColorSpace(hInput);
OutputColorSpace = cmsGetColorSpace(hOutput);
if (cmsGetDeviceClass(hInput) == cmsSigLinkClass ||
cmsGetDeviceClass(hOutput) == cmsSigLinkClass)
FatalError("Use %cl flag for devicelink profiles!\n", SW);
}
/*
if (Verbose) {
mexPrintf("From: %s\n", cmsTakeProductName(hInput));
if (hOutput) mexPrintf("To : %s\n\n", cmsTakeProductName(hOutput));
}
*/
OutputChannels = cmsChannelsOf(OutputColorSpace);
InputChannels = cmsChannelsOf(InputColorSpace);
dwIn = MakeFormatDescriptor(InputColorSpace, nBytesDepth);
dwOut = MakeFormatDescriptor(OutputColorSpace, nBytesDepth);
dwFlags = GetFlags();
if (cProofing != NULL) {
hProof = OpenProfile(cProofing);
dwFlags |= cmsFLAGS_SOFTPROOFING;
}
hColorTransform = cmsCreateProofingTransform(hInput, dwIn,
hOutput, dwOut,
hProof, Intent,
ProofingIntent,
dwFlags);
}
static
void ApplyTransforms(const mxArray *In, mxArray *Out)
{
double *Input = mxGetPr(In);
double *Output = mxGetPr(Out);
size_t nPixels = GetNumberOfPixels(In);;
cmsDoTransform(hColorTransform, Input, Output, nPixels );
}
static
void CloseTransforms(void)
{
int i;
if (hColorTransform) cmsDeleteTransform(hColorTransform);
if (hInput) cmsCloseProfile(hInput);
if (hOutput) cmsCloseProfile(hOutput);
if (hProof) cmsCloseProfile(hProof);
for (i=0; i < nProfiles; i++)
cmsCloseProfile(hProfiles[i]);
hColorTransform = NULL; hInput = NULL; hOutput = NULL; hProof = NULL;
}
static
void HandleSwitches(int argc, char *argv[])
{
int s;
xoptinit();
while ((s = xgetopt(argc, argv,"C:c:VvbBI:i:O:o:T:t:L:l:r:r:P:p:Mm")) != EOF) {
switch (s){
case 'b':
case 'B':
BlackPointCompensation = TRUE;
break;
case 'c':
case 'C':
PrecalcMode = atoi(xoptarg);
if (PrecalcMode < 0 || PrecalcMode > 3)
FatalError("Unknown precalc mode '%d'", PrecalcMode);
break;
case 'v':
case 'V':
Verbose = TRUE;
break;
case 'i':
case 'I':
if (lIsDeviceLink)
FatalError("Device-link already specified");
cInProf = xoptarg;
break;
case 'o':
case 'O':
if (lIsDeviceLink)
FatalError("Device-link already specified");
cOutProf = xoptarg;
break;
case 't':
case 'T':
Intent = atoi(xoptarg);
// if (Intent > 3) Intent = 3;
if (Intent < 0) Intent = 0;
break;
case 'l':
case 'L':
cInProf = xoptarg;
lIsDeviceLink = TRUE;
break;
case 'p':
case 'P':
cProofing = xoptarg;
break;
case 'r':
case 'R':
ProofingIntent = atoi(xoptarg);
// if (ProofingIntent > 3) ProofingIntent = 3;
if (ProofingIntent < 0) ProofingIntent = 0;
break;
case 'm':
case 'M':
lMultiProfileChain = TRUE;
break;
default:
FatalError("Unknown option.");
}
}
// For multiprofile, need to specify -m
if (xoptind < argc) {
if (!lMultiProfileChain)
FatalError("Use %cm for multiprofile transforms", SW);
}
}
// -------------------------------------------------- Print some fancy help
static
void PrintHelp(void)
{
mexPrintf("(MX) little cms ColorSpace conversion tool - v2.0\n\n");
mexPrintf("usage: icctrans (mVar, flags)\n\n");
mexPrintf("mVar : Matlab array.\n");
mexPrintf("flags: a string containing one or more of following options.\n\n");
mexPrintf("\t%cv - Verbose\n", SW);
mexPrintf("\t%ci<profile> - Input profile (defaults to sRGB)\n", SW);
mexPrintf("\t%co<profile> - Output profile (defaults to sRGB)\n", SW);
mexPrintf("\t%cl<profile> - Transform by device-link profile\n", SW);
mexPrintf("\t%cm<profiles> - Apply multiprofile chain\n", SW);
mexPrintf("\t%ct<n> - Rendering intent\n", SW);
mexPrintf("\t%cb - Black point compensation\n", SW);
mexPrintf("\t%cc<0,1,2,3> - Optimize transform (0=Off, 1=Normal, 2=Hi-res, 3=Lo-Res) [defaults to 1]\n", SW);
mexPrintf("\t%cp<profile> - Soft proof profile\n", SW);
mexPrintf("\t%cr<0,1,2,3> - Soft proof intent\n", SW);
mexPrintf("\nYou can use following built-ins as profiles:\n\n");
mexPrintf("\t*Lab2 -- D50-based v2 CIEL*a*b\n"
"\t*Lab4 -- D50-based v4 CIEL*a*b\n"
"\t*Lab -- D50-based v4 CIEL*a*b\n"
"\t*XYZ -- CIE XYZ (PCS)\n"
"\t*sRGB -- IEC6 1996-2.1 sRGB color space\n"
"\t*Gray22 - Monochrome of Gamma 2.2\n"
"\t*Gray30 - Monochrome of Gamma 3.0\n"
"\t*null - Monochrome black for all input\n"
"\t*Lin2222- CMYK linearization of gamma 2.2 on each channel\n\n");
mexPrintf("For suggestions, comments, bug reports etc. send mail to info@littlecms.com\n\n");
}
// Main entry point
void mexFunction(
int nlhs, // Number of left hand side (output) arguments
mxArray *plhs[], // Array of left hand side arguments
int nrhs, // Number of right hand side (input) arguments
const mxArray *prhs[] // Array of right hand side arguments
)
{
char CommandLine[4096+1];
char *pt, *argv[128];
int argc = 1;
if (nrhs != 2) {
PrintHelp();
return;
}
if(nlhs > 1) {
FatalError("Too many output arguments.");
}
// Setup error handler
cmsSetLogErrorHandler(MatLabErrorHandler);
// Defaults
Verbose = 0;
cInProf = NULL;
cOutProf = NULL;
cProofing = NULL;
lMultiProfileChain = FALSE;
nProfiles = 0;
Intent = INTENT_PERCEPTUAL;
ProofingIntent = INTENT_ABSOLUTE_COLORIMETRIC;
PrecalcMode = 1;
BlackPointCompensation = FALSE;
lIsDeviceLink = FALSE;
// Check types. Fist parameter is array of values, second parameter is command line
if (!mxIsNumeric(prhs[0]))
FatalError("Type mismatch on argument 1 -- Must be numeric");
if (!mxIsChar(prhs[1]))
FatalError("Type mismatch on argument 2 -- Must be string");
// Unpack string to command line buffer
if (mxGetString(prhs[1], CommandLine, 4096))
FatalError("Cannot unpack command string");
// Separate to argv[] convention
argv[0] = NULL;
for (pt = strtok(CommandLine, " ");
pt;
pt = strtok(NULL, " ")) {
argv[argc++] = pt;
}
// Parse arguments
HandleSwitches(argc, argv);
nBytesDepth = SizeOfArrayType(prhs[0]);
OpenTransforms(argc, argv);
plhs[0] = AllocateOutputArray(prhs[0], OutputChannels);
ApplyTransforms(prhs[0], plhs[0]);
CloseTransforms();
// Done!
}
|
32 | ./little-cms/utils/transicc/transicc.c | //---------------------------------------------------------------------------------
//
// Little Color Management System
// Copyright (c) 1998-2011 Marti Maria Saguer
//
// Permission is hereby granted, free of charge, to any person obtaining
// a copy of this software and associated documentation files (the "Software"),
// to deal in the Software without restriction, including without limitation
// the rights to use, copy, modify, merge, publish, distribute, sublicense,
// and/or sell copies of the Software, and to permit persons to whom the Software
// is furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO
// THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
// LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
// OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
// WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
//
//---------------------------------------------------------------------------------
//
#include "utils.h"
#ifndef _MSC_VER
# include <unistd.h>
#endif
#ifdef CMS_IS_WINDOWS_
# include <io.h>
#endif
#define MAX_INPUT_BUFFER 4096
// Global options
static cmsBool InHexa = FALSE;
static cmsBool GamutCheck = FALSE;
static cmsBool Width16 = FALSE;
static cmsBool BlackPointCompensation = FALSE;
static cmsBool lIsDeviceLink = FALSE;
static cmsBool lQuantize = FALSE;
static cmsBool lIsFloat = TRUE;
static cmsUInt32Number Intent = INTENT_PERCEPTUAL;
static cmsUInt32Number ProofingIntent = INTENT_PERCEPTUAL;
static int PrecalcMode = 0;
// --------------------------------------------------------------
static char *cInProf = NULL;
static char *cOutProf = NULL;
static char *cProofing = NULL;
static char *IncludePart = NULL;
static cmsHANDLE hIT8in = NULL; // CGATS input
static cmsHANDLE hIT8out = NULL; // CGATS output
static char CGATSPatch[1024]; // Actual Patch Name
static char CGATSoutFilename[cmsMAX_PATH];
static int nMaxPatches;
static cmsHTRANSFORM hTrans, hTransXYZ, hTransLab;
static cmsBool InputNamedColor = FALSE;
static cmsColorSpaceSignature InputColorSpace, OutputColorSpace;
static cmsNAMEDCOLORLIST* InputColorant = NULL;
static cmsNAMEDCOLORLIST* OutputColorant = NULL;
static cmsFloat64Number InputRange, OutputRange;
// isatty replacement
#ifdef _MSC_VER
#define xisatty(x) _isatty( _fileno( (x) ) )
#else
#define xisatty(x) isatty( fileno( (x) ) )
#endif
//---------------------------------------------------------------------------------------------------
// Print usage to stderr
static
void Help(void)
{
fprintf(stderr, "usage: transicc [flags] [CGATS input] [CGATS output]\n\n");
fprintf(stderr, "flags:\n\n");
fprintf(stderr, "%cv<0..3> - Verbosity level\n", SW);
fprintf(stderr, "%ce[op] - Encoded representation of numbers\n", SW);
fprintf(stderr, "\t%cw - use 16 bits\n", SW);
fprintf(stderr, "\t%cx - Hexadecimal\n", SW);
fprintf(stderr, "%cq - Quantize CGATS to 8 bits\n\n", SW);
fprintf(stderr, "%ci<profile> - Input profile (defaults to sRGB)\n", SW);
fprintf(stderr, "%co<profile> - Output profile (defaults to sRGB)\n", SW);
fprintf(stderr, "%cl<profile> - Transform by device-link profile\n", SW);
fprintf(stderr, "\nYou can use '*Lab', '*xyz' and others as built-in profiles\n\n");
PrintRenderingIntents();
fprintf(stderr, "\n");
fprintf(stderr, "%cd<0..1> - Observer adaptation state (abs.col. only)\n\n", SW);
fprintf(stderr, "%cb - Black point compensation\n", SW);
fprintf(stderr, "%cc<0,1,2,3> Precalculates transform (0=Off, 1=Normal, 2=Hi-res, 3=LoRes)\n\n", SW);
fprintf(stderr, "%cn - Terse output, intended for pipe usage\n", SW);
fprintf(stderr, "%cp<profile> - Soft proof profile\n", SW);
fprintf(stderr, "%cm<0,1,2,3> - Soft proof intent\n", SW);
fprintf(stderr, "%cg - Marks out-of-gamut colors on softproof\n\n", SW);
fprintf(stderr, "This program is intended to be a demo of the little cms\n"
"engine. Both lcms and this program are freeware. You can\n"
"obtain both in source code at http://www.littlecms.com\n"
"For suggestions, comments, bug reports etc. send mail to\n"
"info@littlecms.com\n\n");
}
// The toggles stuff
static
void HandleSwitches(int argc, char *argv[])
{
int s;
while ((s = xgetopt(argc, argv,
"bBC:c:d:D:eEgGI:i:L:l:m:M:nNO:o:p:P:QqT:t:V:v:WwxX!:")) != EOF) {
switch (s){
case '!':
IncludePart = xoptarg;
break;
case 'b':
case 'B':
BlackPointCompensation = TRUE;
break;
case 'c':
case 'C':
PrecalcMode = atoi(xoptarg);
if (PrecalcMode < 0 || PrecalcMode > 3)
FatalError("Unknown precalc mode '%d'", PrecalcMode);
break;
case 'd':
case 'D': {
cmsFloat64Number ObserverAdaptationState = atof(xoptarg);
if (ObserverAdaptationState < 0 ||
ObserverAdaptationState > 1.0)
FatalError("Adaptation states should be between 0 and 1");
cmsSetAdaptationState(ObserverAdaptationState);
}
break;
case 'e':
case 'E':
lIsFloat = FALSE;
break;
case 'g':
case 'G':
GamutCheck = TRUE;
break;
case 'i':
case 'I':
if (lIsDeviceLink)
FatalError("icctrans: Device-link already specified");
cInProf = xoptarg;
break;
case 'l':
case 'L':
cInProf = xoptarg;
lIsDeviceLink = TRUE;
break;
// No extra intents for proofing
case 'm':
case 'M':
ProofingIntent = atoi(xoptarg);
if (ProofingIntent > 3)
FatalError("Unknown Proofing Intent '%d'", ProofingIntent);
break;
// For compatibility
case 'n':
case 'N':
Verbose = 0;
break;
// Output profile
case 'o':
case 'O':
if (lIsDeviceLink)
FatalError("icctrans: Device-link already specified");
cOutProf = xoptarg;
break;
// Proofing profile
case 'p':
case 'P':
cProofing = xoptarg;
break;
// Quantize to 16 bits
case 'q':
case 'Q':
lQuantize = TRUE;
break;
// The intent
case 't':
case 'T':
Intent = atoi(xoptarg);
break;
// Verbosity level
case 'V':
case 'v':
Verbose = atoi(xoptarg);
if (Verbose < 0 || Verbose > 3) {
FatalError("Unknown verbosity level '%d'", Verbose);
}
break;
// Wide (16 bits)
case 'W':
case 'w':
Width16 = TRUE;
break;
// Hexadecimal
case 'x':
case 'X':
InHexa = TRUE;
break;
default:
FatalError("Unknown option - run without args to see valid ones.\n");
}
}
// If output CGATS involved, switch to float
if ((argc - xoptind) > 2) {
lIsFloat = TRUE;
}
}
static
void SetRange(cmsFloat64Number range, cmsBool IsInput)
{
if (IsInput)
InputRange = range;
else
OutputRange = range;
}
// Populate a named color list with usual component names.
// I am using the first Colorant channel to store the range, but it works since
// this space is not used anyway.
static
cmsNAMEDCOLORLIST* ComponentNames(cmsColorSpaceSignature space, cmsBool IsInput)
{
cmsNAMEDCOLORLIST* out;
int i, n;
char Buffer[cmsMAX_PATH];
out = cmsAllocNamedColorList(0, 12, cmsMAXCHANNELS, "", "");
if (out == NULL) return NULL;
switch (space) {
case cmsSigXYZData:
SetRange(100, IsInput);
cmsAppendNamedColor(out, "X", NULL, NULL);
cmsAppendNamedColor(out, "Y", NULL, NULL);
cmsAppendNamedColor(out, "Z", NULL, NULL);
break;
case cmsSigLabData:
SetRange(1, IsInput);
cmsAppendNamedColor(out, "L*", NULL, NULL);
cmsAppendNamedColor(out, "a*", NULL, NULL);
cmsAppendNamedColor(out, "b*", NULL, NULL);
break;
case cmsSigLuvData:
SetRange(1, IsInput);
cmsAppendNamedColor(out, "L", NULL, NULL);
cmsAppendNamedColor(out, "u", NULL, NULL);
cmsAppendNamedColor(out, "v", NULL, NULL);
break;
case cmsSigYCbCrData:
SetRange(255, IsInput);
cmsAppendNamedColor(out, "Y", NULL, NULL );
cmsAppendNamedColor(out, "Cb", NULL, NULL);
cmsAppendNamedColor(out, "Cr", NULL, NULL);
break;
case cmsSigYxyData:
SetRange(1, IsInput);
cmsAppendNamedColor(out, "Y", NULL, NULL);
cmsAppendNamedColor(out, "x", NULL, NULL);
cmsAppendNamedColor(out, "y", NULL, NULL);
break;
case cmsSigRgbData:
SetRange(255, IsInput);
cmsAppendNamedColor(out, "R", NULL, NULL);
cmsAppendNamedColor(out, "G", NULL, NULL);
cmsAppendNamedColor(out, "B", NULL, NULL);
break;
case cmsSigGrayData:
SetRange(255, IsInput);
cmsAppendNamedColor(out, "G", NULL, NULL);
break;
case cmsSigHsvData:
SetRange(255, IsInput);
cmsAppendNamedColor(out, "H", NULL, NULL);
cmsAppendNamedColor(out, "s", NULL, NULL);
cmsAppendNamedColor(out, "v", NULL, NULL);
break;
case cmsSigHlsData:
SetRange(255, IsInput);
cmsAppendNamedColor(out, "H", NULL, NULL);
cmsAppendNamedColor(out, "l", NULL, NULL);
cmsAppendNamedColor(out, "s", NULL, NULL);
break;
case cmsSigCmykData:
SetRange(1, IsInput);
cmsAppendNamedColor(out, "C", NULL, NULL);
cmsAppendNamedColor(out, "M", NULL, NULL);
cmsAppendNamedColor(out, "Y", NULL, NULL);
cmsAppendNamedColor(out, "K", NULL, NULL);
break;
case cmsSigCmyData:
SetRange(1, IsInput);
cmsAppendNamedColor(out, "C", NULL, NULL);
cmsAppendNamedColor(out, "M", NULL, NULL);
cmsAppendNamedColor(out, "Y", NULL, NULL);
break;
default:
SetRange(1, IsInput);
n = cmsChannelsOf(space);
for (i=0; i < n; i++) {
sprintf(Buffer, "Channel #%d", i + 1);
cmsAppendNamedColor(out, Buffer, NULL, NULL);
}
}
return out;
}
// Creates all needed color transforms
static
cmsBool OpenTransforms(void)
{
cmsHPROFILE hInput, hOutput, hProof;
cmsUInt32Number dwIn, dwOut, dwFlags;
cmsNAMEDCOLORLIST* List;
int i;
// We don't need cache
dwFlags = cmsFLAGS_NOCACHE;
if (lIsDeviceLink) {
hInput = OpenStockProfile(0, cInProf);
if (hInput == NULL) return FALSE;
hOutput = NULL;
hProof = NULL;
if (cmsGetDeviceClass(hInput) == cmsSigNamedColorClass) {
OutputColorSpace = cmsGetColorSpace(hInput);
InputColorSpace = cmsGetPCS(hInput);
}
else {
InputColorSpace = cmsGetColorSpace(hInput);
OutputColorSpace = cmsGetPCS(hInput);
}
// Read colorant tables if present
if (cmsIsTag(hInput, cmsSigColorantTableTag)) {
List = cmsReadTag(hInput, cmsSigColorantTableTag);
InputColorant = cmsDupNamedColorList(List);
InputRange = 1;
}
else InputColorant = ComponentNames(InputColorSpace, TRUE);
if (cmsIsTag(hInput, cmsSigColorantTableOutTag)){
List = cmsReadTag(hInput, cmsSigColorantTableOutTag);
OutputColorant = cmsDupNamedColorList(List);
OutputRange = 1;
}
else OutputColorant = ComponentNames(OutputColorSpace, FALSE);
}
else {
hInput = OpenStockProfile(0, cInProf);
if (hInput == NULL) return FALSE;
hOutput = OpenStockProfile(0, cOutProf);
if (hOutput == NULL) return FALSE;
hProof = NULL;
if (cmsGetDeviceClass(hInput) == cmsSigLinkClass ||
cmsGetDeviceClass(hOutput) == cmsSigLinkClass)
FatalError("Use %cl flag for devicelink profiles!\n", SW);
InputColorSpace = cmsGetColorSpace(hInput);
OutputColorSpace = cmsGetColorSpace(hOutput);
// Read colorant tables if present
if (cmsIsTag(hInput, cmsSigColorantTableTag)) {
List = cmsReadTag(hInput, cmsSigColorantTableTag);
InputColorant = cmsDupNamedColorList(List);
if (cmsNamedColorCount(InputColorant) <= 3)
SetRange(255, TRUE);
else
SetRange(1, TRUE); // Inks are already divided by 100 in the formatter
}
else InputColorant = ComponentNames(InputColorSpace, TRUE);
if (cmsIsTag(hOutput, cmsSigColorantTableTag)){
List = cmsReadTag(hOutput, cmsSigColorantTableTag);
OutputColorant = cmsDupNamedColorList(List);
if (cmsNamedColorCount(OutputColorant) <= 3)
SetRange(255, FALSE);
else
SetRange(1, FALSE); // Inks are already divided by 100 in the formatter
}
else OutputColorant = ComponentNames(OutputColorSpace, FALSE);
if (cProofing != NULL) {
hProof = OpenStockProfile(0, cProofing);
if (hProof == NULL) return FALSE;
dwFlags |= cmsFLAGS_SOFTPROOFING;
}
}
// Print information on profiles
if (Verbose > 2) {
printf("Profile:\n");
PrintProfileInformation(hInput);
if (hOutput) {
printf("Output profile:\n");
PrintProfileInformation(hOutput);
}
if (hProof != NULL) {
printf("Proofing profile:\n");
PrintProfileInformation(hProof);
}
}
// Input is always in floating point
dwIn = cmsFormatterForColorspaceOfProfile(hInput, 0, TRUE);
if (lIsDeviceLink) {
dwOut = cmsFormatterForPCSOfProfile(hInput, lIsFloat ? 0 : 2, lIsFloat);
}
else {
// 16 bits or floating point (only on output)
dwOut = cmsFormatterForColorspaceOfProfile(hOutput, lIsFloat ? 0 : 2, lIsFloat);
}
// For named color, there is a specialized formatter
if (cmsGetDeviceClass(hInput) == cmsSigNamedColorClass) {
dwOut = dwIn;
dwIn = TYPE_NAMED_COLOR_INDEX;
InputNamedColor = TRUE;
}
// Precision mode
switch (PrecalcMode) {
case 0: dwFlags |= cmsFLAGS_NOOPTIMIZE; break;
case 2: dwFlags |= cmsFLAGS_HIGHRESPRECALC; break;
case 3: dwFlags |= cmsFLAGS_LOWRESPRECALC; break;
case 1: break;
default:
FatalError("Unknown precalculation mode '%d'", PrecalcMode);
}
if (BlackPointCompensation)
dwFlags |= cmsFLAGS_BLACKPOINTCOMPENSATION;
if (GamutCheck) {
cmsUInt16Number Alarm[cmsMAXCHANNELS];
if (hProof == NULL)
FatalError("I need proofing profile -p for gamut checking!");
for (i=0; i < cmsMAXCHANNELS; i++)
Alarm[i] = 0xFFFF;
cmsSetAlarmCodes(Alarm);
dwFlags |= cmsFLAGS_GAMUTCHECK;
}
// The main transform
hTrans = cmsCreateProofingTransform(hInput, dwIn, hOutput, dwOut, hProof, Intent, ProofingIntent, dwFlags);
if (hProof) cmsCloseProfile(hProof);
if (hTrans == NULL) return FALSE;
// PCS Dump if requested
hTransXYZ = NULL; hTransLab = NULL;
if (hOutput && Verbose > 1) {
cmsHPROFILE hXYZ = cmsCreateXYZProfile();
cmsHPROFILE hLab = cmsCreateLab4Profile(NULL);
hTransXYZ = cmsCreateTransform(hInput, dwIn, hXYZ, lIsFloat ? TYPE_XYZ_DBL : TYPE_XYZ_16, Intent, cmsFLAGS_NOCACHE);
if (hTransXYZ == NULL) return FALSE;
hTransLab = cmsCreateTransform(hInput, dwIn, hLab, lIsFloat? TYPE_Lab_DBL : TYPE_Lab_16, Intent, cmsFLAGS_NOCACHE);
if (hTransLab == NULL) return FALSE;
cmsCloseProfile(hXYZ);
cmsCloseProfile(hLab);
}
if (hInput) cmsCloseProfile(hInput);
if (hOutput) cmsCloseProfile(hOutput);
return TRUE;
}
// Free open resources
static
void CloseTransforms(void)
{
if (InputColorant) cmsFreeNamedColorList(InputColorant);
if (OutputColorant) cmsFreeNamedColorList(OutputColorant);
if (hTrans) cmsDeleteTransform(hTrans);
if (hTransLab) cmsDeleteTransform(hTransLab);
if (hTransXYZ) cmsDeleteTransform(hTransXYZ);
}
// ---------------------------------------------------------------------------------------------------
// Get input from user
static
void GetLine(char* Buffer, const char* frm, ...)
{
int res;
va_list args;
va_start(args, frm);
do {
if (xisatty(stdin))
vfprintf(stderr, frm, args);
res = scanf("%4095s", Buffer);
if (res < 0 || toupper(Buffer[0]) == 'Q') { // Quit?
CloseTransforms();
if (xisatty(stdin))
fprintf(stderr, "Done.\n");
exit(0);
}
} while (res == 0);
va_end(args);
}
// Print a value which is given in double floating point
static
void PrintFloatResults(cmsFloat64Number Value[])
{
cmsUInt32Number i, n;
char ChannelName[cmsMAX_PATH];
cmsFloat64Number v;
n = cmsChannelsOf(OutputColorSpace);
for (i=0; i < n; i++) {
if (OutputColorant != NULL) {
cmsNamedColorInfo(OutputColorant, i, ChannelName, NULL, NULL, NULL, NULL);
}
else {
OutputRange = 1;
sprintf(ChannelName, "Channel #%u", i + 1);
}
v = (cmsFloat64Number) Value[i]* OutputRange;
if (lQuantize)
v = floor(v + 0.5);
if (Verbose <= 0)
printf("%.4f ", v);
else
printf("%s=%.4f ", ChannelName, v);
}
printf("\n");
}
// Get a named-color index
static
cmsUInt16Number GetIndex(void)
{
char Buffer[4096], Name[40], Prefix[40], Suffix[40];
int index, max;
const cmsNAMEDCOLORLIST* NamedColorList;
NamedColorList = cmsGetNamedColorList(hTrans);
if (NamedColorList == NULL) return 0;
max = cmsNamedColorCount(NamedColorList)-1;
GetLine(Buffer, "Color index (0..%d)? ", max);
index = atoi(Buffer);
if (index > max)
FatalError("Named color %d out of range!", index);
cmsNamedColorInfo(NamedColorList, index, Name, Prefix, Suffix, NULL, NULL);
printf("\n%s %s %s\n", Prefix, Name, Suffix);
return (cmsUInt16Number) index;
}
// Read values from a text file or terminal
static
void TakeFloatValues(cmsFloat64Number Float[])
{
cmsUInt32Number i, n;
char ChannelName[cmsMAX_PATH];
char Buffer[cmsMAX_PATH];
if (xisatty(stdin))
fprintf(stderr, "\nEnter values, 'q' to quit\n");
if (InputNamedColor) {
// This is named color index, which is always cmsUInt16Number
cmsUInt16Number index = GetIndex();
memcpy(Float, &index, sizeof(cmsUInt16Number));
return;
}
n = cmsChannelsOf(InputColorSpace);
for (i=0; i < n; i++) {
if (InputColorant) {
cmsNamedColorInfo(InputColorant, i, ChannelName, NULL, NULL, NULL, NULL);
}
else {
InputRange = 1;
sprintf(ChannelName, "Channel #%u", i+1);
}
GetLine(Buffer, "%s? ", ChannelName);
Float[i] = (cmsFloat64Number) atof(Buffer) / InputRange;
}
if (xisatty(stdin))
fprintf(stderr, "\n");
}
static
void PrintPCSFloat(cmsFloat64Number Input[])
{
if (Verbose > 1 && hTransXYZ && hTransLab) {
cmsCIEXYZ XYZ = { 0, 0, 0 };
cmsCIELab Lab = { 0, 0, 0 };
if (hTransXYZ) cmsDoTransform(hTransXYZ, Input, &XYZ, 1);
if (hTransLab) cmsDoTransform(hTransLab, Input, &Lab, 1);
printf("[PCS] Lab=(%.4f,%.4f,%.4f) XYZ=(%.4f,%.4f,%.4f)\n", Lab.L, Lab.a, Lab.b,
XYZ.X * 100.0, XYZ.Y * 100.0, XYZ.Z * 100.0);
}
}
// -----------------------------------------------------------------------------------------------
static
void PrintEncodedResults(cmsUInt16Number Encoded[])
{
cmsUInt32Number i, n;
char ChannelName[cmsMAX_PATH];
cmsUInt32Number v;
n = cmsChannelsOf(OutputColorSpace);
for (i=0; i < n; i++) {
if (OutputColorant != NULL) {
cmsNamedColorInfo(OutputColorant, i, ChannelName, NULL, NULL, NULL, NULL);
}
else {
sprintf(ChannelName, "Channel #%u", i + 1);
}
if (Verbose > 0)
printf("%s=", ChannelName);
v = Encoded[i];
if (InHexa) {
if (Width16)
printf("0x%04X ", (int) floor(v + .5));
else
printf("0x%02X ", (int) floor(v / 257. + .5));
} else {
if (Width16)
printf("%d ", (int) floor(v + .5));
else
printf("%d ", (int) floor(v / 257. + .5));
}
}
printf("\n");
}
// Print XYZ/Lab values on verbose mode
static
void PrintPCSEncoded(cmsFloat64Number Input[])
{
if (Verbose > 1 && hTransXYZ && hTransLab) {
cmsUInt16Number XYZ[3], Lab[3];
if (hTransXYZ) cmsDoTransform(hTransXYZ, Input, XYZ, 1);
if (hTransLab) cmsDoTransform(hTransLab, Input, Lab, 1);
printf("[PCS] Lab=(0x%04X,0x%04X,0x%04X) XYZ=(0x%04X,0x%04X,0x%04X)\n", Lab[0], Lab[1], Lab[2],
XYZ[0], XYZ[1], XYZ[2]);
}
}
// --------------------------------------------------------------------------------------
// Take a value from IT8 and scale it accordly to fill a cmsUInt16Number (0..FFFF)
static
cmsFloat64Number GetIT8Val(const char* Name, cmsFloat64Number Max)
{
const char* Val = cmsIT8GetData(hIT8in, CGATSPatch, Name);
if (Val == NULL)
FatalError("Field '%s' not found", Name);
return atof(Val) / Max;
}
// Read input values from CGATS file.
static
void TakeCGATSValues(int nPatch, cmsFloat64Number Float[])
{
// At first take the name if SAMPLE_ID is present
if (cmsIT8GetPatchName(hIT8in, nPatch, CGATSPatch) == NULL) {
FatalError("Sorry, I need 'SAMPLE_ID' on input CGATS to operate.");
}
// Special handling for named color profiles.
// Lookup the name in the names database (the transform)
if (InputNamedColor) {
const cmsNAMEDCOLORLIST* NamedColorList;
int index;
NamedColorList = cmsGetNamedColorList(hTrans);
if (NamedColorList == NULL)
FatalError("Malformed named color profile");
index = cmsNamedColorIndex(NamedColorList, CGATSPatch);
if (index < 0)
FatalError("Named color '%s' not found in the profile", CGATSPatch);
Float[0] = index;
return;
}
// Color is not a spot color, proceed.
switch (InputColorSpace) {
// Encoding should follow CGATS specification.
case cmsSigXYZData:
Float[0] = cmsIT8GetDataDbl(hIT8in, CGATSPatch, "XYZ_X") / 100.0;
Float[1] = cmsIT8GetDataDbl(hIT8in, CGATSPatch, "XYZ_Y") / 100.0;
Float[2] = cmsIT8GetDataDbl(hIT8in, CGATSPatch, "XYZ_Z") / 100.0;
break;
case cmsSigLabData:
Float[0] = cmsIT8GetDataDbl(hIT8in, CGATSPatch, "LAB_L");
Float[1] = cmsIT8GetDataDbl(hIT8in, CGATSPatch, "LAB_A");
Float[2] = cmsIT8GetDataDbl(hIT8in, CGATSPatch, "LAB_B");
break;
case cmsSigRgbData:
Float[0] = GetIT8Val("RGB_R", 255.0);
Float[1] = GetIT8Val("RGB_G", 255.0);
Float[2] = GetIT8Val("RGB_B", 255.0);
break;
case cmsSigGrayData:
Float[0] = GetIT8Val("GRAY", 255.0);
break;
case cmsSigCmykData:
Float[0] = GetIT8Val("CMYK_C", 1.0);
Float[1] = GetIT8Val("CMYK_M", 1.0);
Float[2] = GetIT8Val("CMYK_Y", 1.0);
Float[3] = GetIT8Val("CMYK_K", 1.0);
break;
case cmsSigCmyData:
Float[0] = GetIT8Val("CMY_C", 1.0);
Float[1] = GetIT8Val("CMY_M", 1.0);
Float[2] = GetIT8Val("CMY_Y", 1.0);
break;
case cmsSig1colorData:
case cmsSig2colorData:
case cmsSig3colorData:
case cmsSig4colorData:
case cmsSig5colorData:
case cmsSig6colorData:
case cmsSig7colorData:
case cmsSig8colorData:
case cmsSig9colorData:
case cmsSig10colorData:
case cmsSig11colorData:
case cmsSig12colorData:
case cmsSig13colorData:
case cmsSig14colorData:
case cmsSig15colorData:
{
cmsUInt32Number i, n;
n = cmsChannelsOf(InputColorSpace);
for (i=0; i < n; i++) {
char Buffer[255];
sprintf(Buffer, "%uCLR_%u", n, i+1);
Float[i] = GetIT8Val(Buffer, 100.0);
}
}
break;
default:
{
cmsUInt32Number i, n;
n = cmsChannelsOf(InputColorSpace);
for (i=0; i < n; i++) {
char Buffer[255];
sprintf(Buffer, "CHAN_%u", i+1);
Float[i] = GetIT8Val(Buffer, 1.0);
}
}
}
}
static
void SetCGATSfld(const char* Col, cmsFloat64Number Val)
{
if (lQuantize)
Val = floor(Val + 0.5);
if (!cmsIT8SetDataDbl(hIT8out, CGATSPatch, Col, Val)) {
FatalError("couldn't set '%s' on output cgats '%s'", Col, CGATSoutFilename);
}
}
static
void PutCGATSValues(cmsFloat64Number Float[])
{
cmsIT8SetData(hIT8out, CGATSPatch, "SAMPLE_ID", CGATSPatch);
switch (OutputColorSpace) {
// Encoding should follow CGATS specification.
case cmsSigXYZData:
SetCGATSfld("XYZ_X", Float[0] * 100.0);
SetCGATSfld("XYZ_Y", Float[1] * 100.0);
SetCGATSfld("XYZ_Z", Float[2] * 100.0);
break;
case cmsSigLabData:
SetCGATSfld("LAB_L", Float[0]);
SetCGATSfld("LAB_A", Float[1]);
SetCGATSfld("LAB_B", Float[2]);
break;
case cmsSigRgbData:
SetCGATSfld("RGB_R", Float[0] * 255.0);
SetCGATSfld("RGB_G", Float[1] * 255.0);
SetCGATSfld("RGB_B", Float[2] * 255.0);
break;
case cmsSigGrayData:
SetCGATSfld("GRAY", Float[0] * 255.0);
break;
case cmsSigCmykData:
SetCGATSfld("CMYK_C", Float[0]);
SetCGATSfld("CMYK_M", Float[1]);
SetCGATSfld("CMYK_Y", Float[2]);
SetCGATSfld("CMYK_K", Float[3]);
break;
case cmsSigCmyData:
SetCGATSfld("CMY_C", Float[0]);
SetCGATSfld("CMY_M", Float[1]);
SetCGATSfld("CMY_Y", Float[2]);
break;
case cmsSig1colorData:
case cmsSig2colorData:
case cmsSig3colorData:
case cmsSig4colorData:
case cmsSig5colorData:
case cmsSig6colorData:
case cmsSig7colorData:
case cmsSig8colorData:
case cmsSig9colorData:
case cmsSig10colorData:
case cmsSig11colorData:
case cmsSig12colorData:
case cmsSig13colorData:
case cmsSig14colorData:
case cmsSig15colorData:
{
cmsUInt32Number i, n;
n = cmsChannelsOf(InputColorSpace);
for (i=0; i < n; i++) {
char Buffer[255];
sprintf(Buffer, "%uCLR_%u", n, i+1);
SetCGATSfld(Buffer, Float[i] * 100.0);
}
}
break;
default:
{
cmsUInt32Number i, n;
n = cmsChannelsOf(InputColorSpace);
for (i=0; i < n; i++) {
char Buffer[255];
sprintf(Buffer, "CHAN_%u", i+1);
SetCGATSfld(Buffer, Float[i]);
}
}
}
}
// Create data format
static
void SetOutputDataFormat(void)
{
cmsIT8DefineDblFormat(hIT8out, "%.4g");
cmsIT8SetPropertyStr(hIT8out, "ORIGINATOR", "icctrans");
if (IncludePart != NULL)
cmsIT8SetPropertyStr(hIT8out, ".INCLUDE", IncludePart);
cmsIT8SetComment(hIT8out, "Data follows");
cmsIT8SetPropertyDbl(hIT8out, "NUMBER_OF_SETS", nMaxPatches);
switch (OutputColorSpace) {
// Encoding should follow CGATS specification.
case cmsSigXYZData:
cmsIT8SetPropertyDbl(hIT8out, "NUMBER_OF_FIELDS", 4);
cmsIT8SetDataFormat(hIT8out, 0, "SAMPLE_ID");
cmsIT8SetDataFormat(hIT8out, 1, "XYZ_X");
cmsIT8SetDataFormat(hIT8out, 2, "XYZ_Y");
cmsIT8SetDataFormat(hIT8out, 3, "XYZ_Z");
break;
case cmsSigLabData:
cmsIT8SetPropertyDbl(hIT8out, "NUMBER_OF_FIELDS", 4);
cmsIT8SetDataFormat(hIT8out, 0, "SAMPLE_ID");
cmsIT8SetDataFormat(hIT8out, 1, "LAB_L");
cmsIT8SetDataFormat(hIT8out, 2, "LAB_A");
cmsIT8SetDataFormat(hIT8out, 3, "LAB_B");
break;
case cmsSigRgbData:
cmsIT8SetPropertyDbl(hIT8out, "NUMBER_OF_FIELDS", 4);
cmsIT8SetDataFormat(hIT8out, 0, "SAMPLE_ID");
cmsIT8SetDataFormat(hIT8out, 1, "RGB_R");
cmsIT8SetDataFormat(hIT8out, 2, "RGB_G");
cmsIT8SetDataFormat(hIT8out, 3, "RGB_B");
break;
case cmsSigGrayData:
cmsIT8SetPropertyDbl(hIT8out, "NUMBER_OF_FIELDS", 2);
cmsIT8SetDataFormat(hIT8out, 0, "SAMPLE_ID");
cmsIT8SetDataFormat(hIT8out, 1, "GRAY");
break;
case cmsSigCmykData:
cmsIT8SetPropertyDbl(hIT8out, "NUMBER_OF_FIELDS", 5);
cmsIT8SetDataFormat(hIT8out, 0, "SAMPLE_ID");
cmsIT8SetDataFormat(hIT8out, 1, "CMYK_C");
cmsIT8SetDataFormat(hIT8out, 2, "CMYK_M");
cmsIT8SetDataFormat(hIT8out, 3, "CMYK_Y");
cmsIT8SetDataFormat(hIT8out, 4, "CMYK_K");
break;
case cmsSigCmyData:
cmsIT8SetPropertyDbl(hIT8out, "NUMBER_OF_FIELDS", 4);
cmsIT8SetDataFormat(hIT8out, 0, "SAMPLE_ID");
cmsIT8SetDataFormat(hIT8out, 1, "CMY_C");
cmsIT8SetDataFormat(hIT8out, 2, "CMY_M");
cmsIT8SetDataFormat(hIT8out, 3, "CMY_Y");
break;
case cmsSig1colorData:
case cmsSig2colorData:
case cmsSig3colorData:
case cmsSig4colorData:
case cmsSig5colorData:
case cmsSig6colorData:
case cmsSig7colorData:
case cmsSig8colorData:
case cmsSig9colorData:
case cmsSig10colorData:
case cmsSig11colorData:
case cmsSig12colorData:
case cmsSig13colorData:
case cmsSig14colorData:
case cmsSig15colorData:
{
int i, n;
char Buffer[255];
n = cmsChannelsOf(OutputColorSpace);
cmsIT8SetPropertyDbl(hIT8out, "NUMBER_OF_FIELDS", n+1);
cmsIT8SetDataFormat(hIT8out, 0, "SAMPLE_ID");
for (i=1; i <= n; i++) {
sprintf(Buffer, "%dCLR_%d", n, i);
cmsIT8SetDataFormat(hIT8out, i, Buffer);
}
}
break;
default: {
int i, n;
char Buffer[255];
n = cmsChannelsOf(OutputColorSpace);
cmsIT8SetPropertyDbl(hIT8out, "NUMBER_OF_FIELDS", n+1);
cmsIT8SetDataFormat(hIT8out, 0, "SAMPLE_ID");
for (i=1; i <= n; i++) {
sprintf(Buffer, "CHAN_%d", i);
cmsIT8SetDataFormat(hIT8out, i, Buffer);
}
}
}
}
// Open CGATS if specified
static
void OpenCGATSFiles(int argc, char *argv[])
{
int nParams = argc - xoptind;
if (nParams >= 1) {
hIT8in = cmsIT8LoadFromFile(0, argv[xoptind]);
if (hIT8in == NULL)
FatalError("'%s' is not recognized as a CGATS file", argv[xoptind]);
nMaxPatches = (int) cmsIT8GetPropertyDbl(hIT8in, "NUMBER_OF_SETS");
}
if (nParams == 2) {
hIT8out = cmsIT8Alloc(NULL);
SetOutputDataFormat();
strncpy(CGATSoutFilename, argv[xoptind+1], cmsMAX_PATH-1);
}
if (nParams > 2) FatalError("Too many CGATS files");
}
// The main sink
int main(int argc, char *argv[])
{
cmsUInt16Number Output[cmsMAXCHANNELS];
cmsFloat64Number OutputFloat[cmsMAXCHANNELS];
cmsFloat64Number InputFloat[cmsMAXCHANNELS];
int nPatch = 0;
fprintf(stderr, "LittleCMS ColorSpace conversion calculator - 4.2 [LittleCMS %2.2f]\n", LCMS_VERSION / 1000.0);
InitUtils("transicc");
Verbose = 1;
if (argc == 1) {
Help();
return 0;
}
HandleSwitches(argc, argv);
// Open profiles, create transforms
if (!OpenTransforms()) return 1;
// Open CGATS input if specified
OpenCGATSFiles(argc, argv);
// Main loop: read all values and convert them
for(;;) {
if (hIT8in != NULL) {
if (nPatch >= nMaxPatches) break;
TakeCGATSValues(nPatch++, InputFloat);
} else {
if (feof(stdin)) break;
TakeFloatValues(InputFloat);
}
if (lIsFloat)
cmsDoTransform(hTrans, InputFloat, OutputFloat, 1);
else
cmsDoTransform(hTrans, InputFloat, Output, 1);
if (hIT8out != NULL) {
PutCGATSValues(OutputFloat);
}
else {
if (lIsFloat) {
PrintFloatResults(OutputFloat); PrintPCSFloat(InputFloat);
}
else {
PrintEncodedResults(Output); PrintPCSEncoded(InputFloat);
}
}
}
// Cleanup
CloseTransforms();
if (hIT8in)
cmsIT8Free(hIT8in);
if (hIT8out) {
cmsIT8SaveToFile(hIT8out, CGATSoutFilename);
cmsIT8Free(hIT8out);
}
// All is ok
return 0;
}
|
33 | ./little-cms/utils/psicc/psicc.c | //---------------------------------------------------------------------------------
//
// Little Color Management System
// Copyright (c) 1998-2010 Marti Maria Saguer
//
// Permission is hereby granted, free of charge, to any person obtaining
// a copy of this software and associated documentation files (the "Software"),
// to deal in the Software without restriction, including without limitation
// the rights to use, copy, modify, merge, publish, distribute, sublicense,
// and/or sell copies of the Software, and to permit persons to whom the Software
// is furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO
// THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
// LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
// OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
// WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
//
//---------------------------------------------------------------------------------
#include "utils.h"
// ------------------------------------------------------------------------
static char *cInProf = NULL;
static char *cOutProf = NULL;
static int Intent = INTENT_PERCEPTUAL;
static FILE* OutFile;
static int BlackPointCompensation = FALSE;
static int Undecorated = FALSE;
static int PrecalcMode = 1;
static int NumOfGridPoints = 0;
// The toggles stuff
static
void HandleSwitches(int argc, char *argv[])
{
int s;
while ((s = xgetopt(argc,argv,"uUbBI:i:O:o:T:t:c:C:n:N:")) != EOF) {
switch (s){
case 'i':
case 'I':
cInProf = xoptarg;
break;
case 'o':
case 'O':
cOutProf = xoptarg;
break;
case 'b':
case 'B': BlackPointCompensation =TRUE;
break;
case 't':
case 'T':
Intent = atoi(xoptarg);
if (Intent > 3) Intent = 3;
if (Intent < 0) Intent = 0;
break;
case 'U':
case 'u':
Undecorated = TRUE;
break;
case 'c':
case 'C':
PrecalcMode = atoi(xoptarg);
if (PrecalcMode < 0 || PrecalcMode > 2)
FatalError("ERROR: Unknown precalc mode '%d'", PrecalcMode);
break;
case 'n':
case 'N':
if (PrecalcMode != 1)
FatalError("Precalc mode already specified");
NumOfGridPoints = atoi(xoptarg);
break;
default:
FatalError("Unknown option - run without args to see valid ones.\n");
}
}
}
static
void Help(void)
{
fprintf(stderr, "little cms ICC PostScript generator - v2.0 [LittleCMS %2.2f]\n", LCMS_VERSION / 1000.0);
fprintf(stderr, "usage: psicc [flags]\n\n");
fprintf(stderr, "flags:\n\n");
fprintf(stderr, "%ci<profile> - Input profile: Generates Color Space Array (CSA)\n", SW);
fprintf(stderr, "%co<profile> - Output profile: Generates Color Rendering Dictionary(CRD)\n", SW);
fprintf(stderr, "%ct<0,1,2,3> - Intent (0=Perceptual, 1=Colorimetric, 2=Saturation, 3=Absolute)\n", SW);
fprintf(stderr, "%cb - Black point compensation (CRD only)\n", SW);
fprintf(stderr, "%cu - Do NOT generate resource name on CRD\n", SW);
fprintf(stderr, "%cc<0,1,2> - Precision (0=LowRes, 1=Normal (default), 2=Hi-res) (CRD only)\n", SW);
fprintf(stderr, "%cn<gridpoints> - Alternate way to set precission, number of CLUT points (CRD only)\n", SW);
fprintf(stderr, "\n");
fprintf(stderr, "This program is intended to be a demo of the little cms\n"
"engine. Both lcms and this program are freeware. You can\n"
"obtain both in source code at http://www.littlecms.com\n"
"For suggestions, comments, bug reports etc. send mail to\n"
"info@littlecms.com\n\n");
exit(0);
}
static
void GenerateCSA(void)
{
cmsHPROFILE hProfile = OpenStockProfile(0, cInProf);
size_t n;
char* Buffer;
if (hProfile == NULL) return;
n = cmsGetPostScriptCSA(0, hProfile, Intent, 0, NULL, 0);
if (n == 0) return;
Buffer = (char*) malloc(n + 1);
if (Buffer != NULL) {
cmsGetPostScriptCSA(0, hProfile, Intent, 0, Buffer, n);
Buffer[n] = 0;
fprintf(OutFile, "%s", Buffer);
free(Buffer);
}
cmsCloseProfile(hProfile);
}
static
void GenerateCRD(void)
{
cmsHPROFILE hProfile = OpenStockProfile(0, cOutProf);
size_t n;
char* Buffer;
cmsUInt32Number dwFlags = 0;
if (hProfile == NULL) return;
if (BlackPointCompensation) dwFlags |= cmsFLAGS_BLACKPOINTCOMPENSATION;
if (Undecorated) dwFlags |= cmsFLAGS_NODEFAULTRESOURCEDEF;
switch (PrecalcMode) {
case 0: dwFlags |= cmsFLAGS_LOWRESPRECALC; break;
case 2: dwFlags |= cmsFLAGS_HIGHRESPRECALC; break;
case 1:
if (NumOfGridPoints > 0)
dwFlags |= cmsFLAGS_GRIDPOINTS(NumOfGridPoints);
break;
default: FatalError("ERROR: Unknown precalculation mode '%d'", PrecalcMode);
}
n = cmsGetPostScriptCRD(0, hProfile, Intent, dwFlags, NULL, 0);
if (n == 0) return;
Buffer = (char*) malloc(n + 1);
cmsGetPostScriptCRD(0, hProfile, Intent, dwFlags, Buffer, n);
Buffer[n] = 0;
fprintf(OutFile, "%s", Buffer);
free(Buffer);
cmsCloseProfile(hProfile);
}
int main(int argc, char *argv[])
{
int nargs;
// Initialize
InitUtils("psicc");
HandleSwitches(argc, argv);
nargs = (argc - xoptind);
if (nargs != 0 && nargs != 1)
Help();
if (nargs == 0)
OutFile = stdout;
else
OutFile = fopen(argv[xoptind], "wt");
if (cInProf == NULL && cOutProf == NULL)
Help();
if (cInProf != NULL)
GenerateCSA();
if (cOutProf != NULL)
GenerateCRD();
if (nargs == 1) {
fclose(OutFile);
}
return 0;
}
|
34 | ./little-cms/utils/tificc/tificc.c | //---------------------------------------------------------------------------------
//
// Little Color Management System
// Copyright (c) 1998-2010 Marti Maria Saguer
//
// Permission is hereby granted, free of charge, to any person obtaining
// a copy of this software and associated documentation files (the "Software"),
// to deal in the Software without restriction, including without limitation
// the rights to use, copy, modify, merge, publish, distribute, sublicense,
// and/or sell copies of the Software, and to permit persons to whom the Software
// is furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO
// THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
// LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
// OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
// WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
//
//---------------------------------------------------------------------------------
// This program does apply profiles to (some) TIFF files
#include "lcms2_plugin.h"
#include "tiffio.h"
#include "utils.h"
// Flags
static cmsBool BlackWhiteCompensation = FALSE;
static cmsBool IgnoreEmbedded = FALSE;
static cmsBool EmbedProfile = FALSE;
static int Width = 8;
static cmsBool GamutCheck = FALSE;
static cmsBool lIsDeviceLink = FALSE;
static cmsBool StoreAsAlpha = FALSE;
static int Intent = INTENT_PERCEPTUAL;
static int ProofingIntent = INTENT_PERCEPTUAL;
static int PrecalcMode = 1;
static cmsFloat64Number InkLimit = 400;
static cmsFloat64Number ObserverAdaptationState = 1.0; // According ICC 4.3 this is the default
static const char *cInpProf = NULL;
static const char *cOutProf = NULL;
static const char *cProofing = NULL;
static const char* SaveEmbedded = NULL;
// Console error & warning
static
void ConsoleWarningHandler(const char* module, const char* fmt, va_list ap)
{
char e[512] = { '\0' };
if (module != NULL)
strcat(strcpy(e, module), ": ");
vsprintf(e+strlen(e), fmt, ap);
strcat(e, ".");
if (Verbose) {
fprintf(stderr, "\nWarning");
fprintf(stderr, " %s\n", e);
fflush(stderr);
}
}
static
void ConsoleErrorHandler(const char* module, const char* fmt, va_list ap)
{
char e[512] = { '\0' };
if (module != NULL) {
if (strlen(module) < 500)
strcat(strcpy(e, module), ": ");
}
vsprintf(e+strlen(e), fmt, ap);
strcat(e, ".");
fprintf(stderr, "\nError");
fprintf(stderr, " %s\n", e);
fflush(stderr);
}
// Issue a warning
static
void Warning(const char *frm, ...)
{
va_list args;
va_start(args, frm);
ConsoleWarningHandler("[tificc]", frm, args);
va_end(args);
}
// Out of mememory is a fatal error
static
void OutOfMem(cmsUInt32Number size)
{
FatalError("Out of memory on allocating %d bytes.", size);
}
// -----------------------------------------------------------------------------------------------
// In TIFF, Lab is encoded in a different way, so let's use the plug-in
// capabilities of lcms2 to change the meaning of TYPE_Lab_8.
// * 0xffff / 0xff00 = (255 * 257) / (255 * 256) = 257 / 256
static int FromLabV2ToLabV4(int x)
{
int a;
a = ((x << 8) | x) >> 8; // * 257 / 256
if ( a > 0xffff) return 0xffff;
return a;
}
// * 0xf00 / 0xffff = * 256 / 257
static int FromLabV4ToLabV2(int x)
{
return ((x << 8) + 0x80) / 257;
}
// Formatter for 8bit Lab TIFF (photometric 8)
static
unsigned char* UnrollTIFFLab8(struct _cmstransform_struct* CMMcargo,
register cmsUInt16Number wIn[],
register cmsUInt8Number* accum,
register cmsUInt32Number Stride)
{
wIn[0] = (cmsUInt16Number) FromLabV2ToLabV4((accum[0]) << 8);
wIn[1] = (cmsUInt16Number) FromLabV2ToLabV4(((accum[1] > 127) ? (accum[1] - 128) : (accum[1] + 128)) << 8);
wIn[2] = (cmsUInt16Number) FromLabV2ToLabV4(((accum[2] > 127) ? (accum[2] - 128) : (accum[2] + 128)) << 8);
return accum + 3;
UTILS_UNUSED_PARAMETER(Stride);
UTILS_UNUSED_PARAMETER(CMMcargo);
}
// Formatter for 16bit Lab TIFF (photometric 8)
static
unsigned char* UnrollTIFFLab16(struct _cmstransform_struct* CMMcargo,
register cmsUInt16Number wIn[],
register cmsUInt8Number* accum,
register cmsUInt32Number Stride )
{
cmsUInt16Number* accum16 = (cmsUInt16Number*) accum;
wIn[0] = (cmsUInt16Number) FromLabV2ToLabV4(accum16[0]);
wIn[1] = (cmsUInt16Number) FromLabV2ToLabV4(((accum16[1] > 0x7f00) ? (accum16[1] - 0x8000) : (accum16[1] + 0x8000)) );
wIn[2] = (cmsUInt16Number) FromLabV2ToLabV4(((accum16[2] > 0x7f00) ? (accum16[2] - 0x8000) : (accum16[2] + 0x8000)) );
return accum + 3 * sizeof(cmsUInt16Number);
UTILS_UNUSED_PARAMETER(Stride);
UTILS_UNUSED_PARAMETER(CMMcargo);
}
static
unsigned char* PackTIFFLab8(struct _cmstransform_struct* CMMcargo,
register cmsUInt16Number wOut[],
register cmsUInt8Number* output,
register cmsUInt32Number Stride)
{
int a, b;
*output++ = (cmsUInt8Number) (FromLabV4ToLabV2(wOut[0] + 0x0080) >> 8);
a = (FromLabV4ToLabV2(wOut[1]) + 0x0080) >> 8;
b = (FromLabV4ToLabV2(wOut[2]) + 0x0080) >> 8;
*output++ = (cmsUInt8Number) ((a < 128) ? (a + 128) : (a - 128));
*output++ = (cmsUInt8Number) ((b < 128) ? (b + 128) : (b - 128));
return output;
UTILS_UNUSED_PARAMETER(Stride);
UTILS_UNUSED_PARAMETER(CMMcargo);
}
static
unsigned char* PackTIFFLab16(struct _cmstransform_struct* CMMcargo,
register cmsUInt16Number wOut[],
register cmsUInt8Number* output,
register cmsUInt32Number Stride)
{
int a, b;
cmsUInt16Number* output16 = (cmsUInt16Number*) output;
*output16++ = (cmsUInt16Number) FromLabV4ToLabV2(wOut[0]);
a = FromLabV4ToLabV2(wOut[1]);
b = FromLabV4ToLabV2(wOut[2]);
*output16++ = (cmsUInt16Number) ((a < 0x7f00) ? (a + 0x8000) : (a - 0x8000));
*output16++ = (cmsUInt16Number) ((b < 0x7f00) ? (b + 0x8000) : (b - 0x8000));
return (cmsUInt8Number*) output16;
UTILS_UNUSED_PARAMETER(Stride);
UTILS_UNUSED_PARAMETER(CMMcargo);
}
static
cmsFormatter TiffFormatterFactory(cmsUInt32Number Type,
cmsFormatterDirection Dir,
cmsUInt32Number dwFlags)
{
cmsFormatter Result = { NULL };
int bps = T_BYTES(Type);
int IsTiffSpecial = (Type >> 23) & 1;
if (IsTiffSpecial && !(dwFlags & CMS_PACK_FLAGS_FLOAT))
{
if (Dir == cmsFormatterInput)
{
Result.Fmt16 = (bps == 1) ? UnrollTIFFLab8 : UnrollTIFFLab16;
}
else
Result.Fmt16 = (bps == 1) ? PackTIFFLab8 : PackTIFFLab16;
}
return Result;
}
static cmsPluginFormatters TiffLabPlugin = { {cmsPluginMagicNumber, 2000, cmsPluginFormattersSig, NULL}, TiffFormatterFactory };
// Build up the pixeltype descriptor
static
cmsUInt32Number GetInputPixelType(TIFF *Bank)
{
uint16 Photometric, bps, spp, extra, PlanarConfig, *info;
uint16 Compression, reverse = 0;
int ColorChannels, IsPlanar = 0, pt = 0, IsFlt;
int labTiffSpecial = FALSE;
TIFFGetField(Bank, TIFFTAG_PHOTOMETRIC, &Photometric);
TIFFGetFieldDefaulted(Bank, TIFFTAG_BITSPERSAMPLE, &bps);
if (bps == 1)
FatalError("Sorry, bilevel TIFFs has nothing to do with ICC profiles");
if (bps != 8 && bps != 16 && bps != 32)
FatalError("Sorry, 8, 16 or 32 bits per sample only");
TIFFGetFieldDefaulted(Bank, TIFFTAG_SAMPLESPERPIXEL, &spp);
TIFFGetFieldDefaulted(Bank, TIFFTAG_PLANARCONFIG, &PlanarConfig);
switch (PlanarConfig) {
case PLANARCONFIG_CONTIG: IsPlanar = 0; break;
case PLANARCONFIG_SEPARATE: IsPlanar = 1; break;
default:
FatalError("Unsupported planar configuration (=%d) ", (int) PlanarConfig);
}
// If Samples per pixel == 1, PlanarConfiguration is irrelevant and need
// not to be included.
if (spp == 1) IsPlanar = 0;
// Any alpha?
TIFFGetFieldDefaulted(Bank, TIFFTAG_EXTRASAMPLES, &extra, &info);
// Read alpha channels as colorant
if (StoreAsAlpha) {
ColorChannels = spp;
extra = 0;
}
else
ColorChannels = spp - extra;
switch (Photometric) {
case PHOTOMETRIC_MINISWHITE:
reverse = 1;
// ... fall through ...
case PHOTOMETRIC_MINISBLACK:
pt = PT_GRAY;
break;
case PHOTOMETRIC_RGB:
pt = PT_RGB;
break;
case PHOTOMETRIC_PALETTE:
FatalError("Sorry, palette images not supported");
break;
case PHOTOMETRIC_SEPARATED:
pt = PixelTypeFromChanCount(ColorChannels);
break;
case PHOTOMETRIC_YCBCR:
TIFFGetField(Bank, TIFFTAG_COMPRESSION, &Compression);
{
uint16 subx, suby;
pt = PT_YCbCr;
TIFFGetFieldDefaulted(Bank, TIFFTAG_YCBCRSUBSAMPLING, &subx, &suby);
if (subx != 1 || suby != 1)
FatalError("Sorry, subsampled images not supported");
}
break;
case PHOTOMETRIC_ICCLAB:
pt = PT_LabV2;
break;
case PHOTOMETRIC_CIELAB:
pt = PT_Lab;
labTiffSpecial = TRUE;
break;
case PHOTOMETRIC_LOGLUV: // CIE Log2(L) (u',v')
TIFFSetField(Bank, TIFFTAG_SGILOGDATAFMT, SGILOGDATAFMT_16BIT);
pt = PT_YUV; // *ICCSpace = icSigLuvData;
bps = 16; // 16 bits forced by LibTiff
break;
default:
FatalError("Unsupported TIFF color space (Photometric %d)", Photometric);
}
// Convert bits per sample to bytes per sample
bps >>= 3;
IsFlt = (bps == 0) || (bps == 4);
return (FLOAT_SH(IsFlt)|COLORSPACE_SH(pt)|PLANAR_SH(IsPlanar)|EXTRA_SH(extra)|CHANNELS_SH(ColorChannels)|BYTES_SH(bps)|FLAVOR_SH(reverse) | (labTiffSpecial << 23) );
}
// Rearrange pixel type to build output descriptor
static
cmsUInt32Number ComputeOutputFormatDescriptor(cmsUInt32Number dwInput, int OutColorSpace, int bps)
{
int IsPlanar = T_PLANAR(dwInput);
int Channels = ChanCountFromPixelType(OutColorSpace);
int IsFlt = (bps == 0) || (bps == 4);
return (FLOAT_SH(IsFlt)|COLORSPACE_SH(OutColorSpace)|PLANAR_SH(IsPlanar)|CHANNELS_SH(Channels)|BYTES_SH(bps));
}
// Tile based transforms
static
int TileBasedXform(cmsHTRANSFORM hXForm, TIFF* in, TIFF* out, int nPlanes)
{
tsize_t BufSizeIn = TIFFTileSize(in);
tsize_t BufSizeOut = TIFFTileSize(out);
unsigned char *BufferIn, *BufferOut;
ttile_t i, TileCount = TIFFNumberOfTiles(in) / nPlanes;
uint32 tw, tl;
int PixelCount, j;
TIFFGetFieldDefaulted(in, TIFFTAG_TILEWIDTH, &tw);
TIFFGetFieldDefaulted(in, TIFFTAG_TILELENGTH, &tl);
PixelCount = (int) tw * tl;
BufferIn = (unsigned char *) _TIFFmalloc(BufSizeIn * nPlanes);
if (!BufferIn) OutOfMem(BufSizeIn * nPlanes);
BufferOut = (unsigned char *) _TIFFmalloc(BufSizeOut * nPlanes);
if (!BufferOut) OutOfMem(BufSizeOut * nPlanes);
for (i = 0; i < TileCount; i++) {
for (j=0; j < nPlanes; j++) {
if (TIFFReadEncodedTile(in, i + (j* TileCount),
BufferIn + (j*BufSizeIn), BufSizeIn) < 0) goto cleanup;
}
cmsDoTransform(hXForm, BufferIn, BufferOut, PixelCount);
for (j=0; j < nPlanes; j++) {
if (TIFFWriteEncodedTile(out, i + (j*TileCount),
BufferOut + (j*BufSizeOut), BufSizeOut) < 0) goto cleanup;
}
}
_TIFFfree(BufferIn);
_TIFFfree(BufferOut);
return 1;
cleanup:
_TIFFfree(BufferIn);
_TIFFfree(BufferOut);
return 0;
}
// Strip based transforms
static
int StripBasedXform(cmsHTRANSFORM hXForm, TIFF* in, TIFF* out, int nPlanes)
{
tsize_t BufSizeIn = TIFFStripSize(in);
tsize_t BufSizeOut = TIFFStripSize(out);
unsigned char *BufferIn, *BufferOut;
ttile_t i, StripCount = TIFFNumberOfStrips(in) / nPlanes;
uint32 sw;
uint32 sl;
uint32 iml;
int j;
int PixelCount;
TIFFGetFieldDefaulted(in, TIFFTAG_IMAGEWIDTH, &sw);
TIFFGetFieldDefaulted(in, TIFFTAG_ROWSPERSTRIP, &sl);
TIFFGetFieldDefaulted(in, TIFFTAG_IMAGELENGTH, &iml);
// It is possible to get infinite rows per strip
if (sl == 0 || sl > iml)
sl = iml; // One strip for whole image
BufferIn = (unsigned char *) _TIFFmalloc(BufSizeIn * nPlanes);
if (!BufferIn) OutOfMem(BufSizeIn * nPlanes);
BufferOut = (unsigned char *) _TIFFmalloc(BufSizeOut * nPlanes);
if (!BufferOut) OutOfMem(BufSizeOut * nPlanes);
for (i = 0; i < StripCount; i++) {
for (j=0; j < nPlanes; j++) {
if (TIFFReadEncodedStrip(in, i + (j * StripCount),
BufferIn + (j * BufSizeIn), BufSizeIn) < 0) goto cleanup;
}
PixelCount = (int) sw * (iml < sl ? iml : sl);
iml -= sl;
cmsDoTransform(hXForm, BufferIn, BufferOut, PixelCount);
for (j=0; j < nPlanes; j++) {
if (TIFFWriteEncodedStrip(out, i + (j * StripCount),
BufferOut + j * BufSizeOut, BufSizeOut) < 0) goto cleanup;
}
}
_TIFFfree(BufferIn);
_TIFFfree(BufferOut);
return 1;
cleanup:
_TIFFfree(BufferIn);
_TIFFfree(BufferOut);
return 0;
}
// Creates minimum required tags
static
void WriteOutputTags(TIFF *out, int Colorspace, int BytesPerSample)
{
int BitsPerSample = (8 * BytesPerSample);
int nChannels = ChanCountFromPixelType(Colorspace);
uint16 Extra[] = { EXTRASAMPLE_UNASSALPHA,
EXTRASAMPLE_UNASSALPHA,
EXTRASAMPLE_UNASSALPHA,
EXTRASAMPLE_UNASSALPHA,
EXTRASAMPLE_UNASSALPHA,
EXTRASAMPLE_UNASSALPHA,
EXTRASAMPLE_UNASSALPHA,
EXTRASAMPLE_UNASSALPHA,
EXTRASAMPLE_UNASSALPHA,
EXTRASAMPLE_UNASSALPHA,
EXTRASAMPLE_UNASSALPHA
};
switch (Colorspace) {
case PT_GRAY:
TIFFSetField(out, TIFFTAG_PHOTOMETRIC, PHOTOMETRIC_MINISBLACK);
TIFFSetField(out, TIFFTAG_SAMPLESPERPIXEL, 1);
TIFFSetField(out, TIFFTAG_BITSPERSAMPLE, BitsPerSample);
break;
case PT_RGB:
TIFFSetField(out, TIFFTAG_PHOTOMETRIC, PHOTOMETRIC_RGB);
TIFFSetField(out, TIFFTAG_SAMPLESPERPIXEL, 3);
TIFFSetField(out, TIFFTAG_BITSPERSAMPLE, BitsPerSample);
break;
case PT_CMY:
TIFFSetField(out, TIFFTAG_PHOTOMETRIC, PHOTOMETRIC_SEPARATED);
TIFFSetField(out, TIFFTAG_SAMPLESPERPIXEL, 3);
TIFFSetField(out, TIFFTAG_INKSET, 2);
TIFFSetField(out, TIFFTAG_BITSPERSAMPLE, BitsPerSample);
break;
case PT_CMYK:
TIFFSetField(out, TIFFTAG_PHOTOMETRIC, PHOTOMETRIC_SEPARATED);
TIFFSetField(out, TIFFTAG_SAMPLESPERPIXEL, 4);
TIFFSetField(out, TIFFTAG_INKSET, INKSET_CMYK);
TIFFSetField(out, TIFFTAG_BITSPERSAMPLE, BitsPerSample);
break;
case PT_Lab:
if (BitsPerSample == 16)
TIFFSetField(out, TIFFTAG_PHOTOMETRIC, 9);
else
TIFFSetField(out, TIFFTAG_PHOTOMETRIC, PHOTOMETRIC_CIELAB);
TIFFSetField(out, TIFFTAG_SAMPLESPERPIXEL, 3);
TIFFSetField(out, TIFFTAG_BITSPERSAMPLE, BitsPerSample); // Needed by TIFF Spec
break;
// Multi-ink separations
case PT_MCH2:
case PT_MCH3:
case PT_MCH4:
case PT_MCH5:
case PT_MCH6:
case PT_MCH7:
case PT_MCH8:
case PT_MCH9:
case PT_MCH10:
case PT_MCH11:
case PT_MCH12:
case PT_MCH13:
case PT_MCH14:
case PT_MCH15:
TIFFSetField(out, TIFFTAG_PHOTOMETRIC, PHOTOMETRIC_SEPARATED);
TIFFSetField(out, TIFFTAG_SAMPLESPERPIXEL, nChannels);
if (StoreAsAlpha && nChannels >= 4) {
// CMYK plus extra alpha
TIFFSetField(out, TIFFTAG_EXTRASAMPLES, nChannels - 4, Extra);
TIFFSetField(out, TIFFTAG_INKSET, 1);
TIFFSetField(out, TIFFTAG_NUMBEROFINKS, 4);
}
else {
TIFFSetField(out, TIFFTAG_INKSET, 2);
TIFFSetField(out, TIFFTAG_NUMBEROFINKS, nChannels);
}
TIFFSetField(out, TIFFTAG_BITSPERSAMPLE, BitsPerSample);
break;
default:
FatalError("Unsupported output colorspace");
}
if (Width == 32)
TIFFSetField(out, TIFFTAG_SAMPLEFORMAT, SAMPLEFORMAT_IEEEFP);
}
// Copies a bunch of tages
static
void CopyOtherTags(TIFF* in, TIFF* out)
{
#define CopyField(tag, v) \
if (TIFFGetField(in, tag, &v)) TIFFSetField(out, tag, v)
short shortv;
uint32 ow, ol;
cmsFloat32Number floatv;
char *stringv;
uint32 longv;
CopyField(TIFFTAG_SUBFILETYPE, longv);
TIFFGetField(in, TIFFTAG_IMAGEWIDTH, &ow);
TIFFGetField(in, TIFFTAG_IMAGELENGTH, &ol);
TIFFSetField(out, TIFFTAG_IMAGEWIDTH, ow);
TIFFSetField(out, TIFFTAG_IMAGELENGTH, ol);
CopyField(TIFFTAG_PLANARCONFIG, shortv);
CopyField(TIFFTAG_COMPRESSION, shortv);
if (Width != 32)
CopyField(TIFFTAG_PREDICTOR, shortv);
CopyField(TIFFTAG_THRESHHOLDING, shortv);
CopyField(TIFFTAG_FILLORDER, shortv);
CopyField(TIFFTAG_ORIENTATION, shortv);
CopyField(TIFFTAG_MINSAMPLEVALUE, shortv);
CopyField(TIFFTAG_MAXSAMPLEVALUE, shortv);
CopyField(TIFFTAG_XRESOLUTION, floatv);
CopyField(TIFFTAG_YRESOLUTION, floatv);
CopyField(TIFFTAG_RESOLUTIONUNIT, shortv);
CopyField(TIFFTAG_ROWSPERSTRIP, longv);
CopyField(TIFFTAG_XPOSITION, floatv);
CopyField(TIFFTAG_YPOSITION, floatv);
CopyField(TIFFTAG_IMAGEDEPTH, longv);
CopyField(TIFFTAG_TILEDEPTH, longv);
CopyField(TIFFTAG_TILEWIDTH, longv);
CopyField(TIFFTAG_TILELENGTH, longv);
CopyField(TIFFTAG_ARTIST, stringv);
CopyField(TIFFTAG_IMAGEDESCRIPTION, stringv);
CopyField(TIFFTAG_MAKE, stringv);
CopyField(TIFFTAG_MODEL, stringv);
CopyField(TIFFTAG_DATETIME, stringv);
CopyField(TIFFTAG_HOSTCOMPUTER, stringv);
CopyField(TIFFTAG_PAGENAME, stringv);
CopyField(TIFFTAG_DOCUMENTNAME, stringv);
}
// A replacement for (the nonstandard) filelenght
static
void DoEmbedProfile(TIFF* Out, const char* ProfileFile)
{
FILE* f;
cmsUInt32Number size, EmbedLen;
cmsUInt8Number* EmbedBuffer;
f = fopen(ProfileFile, "rb");
if (f == NULL) return;
size = cmsfilelength(f);
EmbedBuffer = (cmsUInt8Number*) malloc(size + 1);
if (EmbedBuffer == NULL) {
OutOfMem(size+1);
return;
}
EmbedLen = fread(EmbedBuffer, 1, size, f);
if (EmbedLen != size)
FatalError("Cannot read %ld bytes to %s", size, ProfileFile);
fclose(f);
EmbedBuffer[EmbedLen] = 0;
TIFFSetField(Out, TIFFTAG_ICCPROFILE, EmbedLen, EmbedBuffer);
free(EmbedBuffer);
}
static
cmsHPROFILE GetTIFFProfile(TIFF* in)
{
cmsCIExyYTRIPLE Primaries;
cmsFloat32Number* chr;
cmsCIExyY WhitePoint;
cmsFloat32Number* wp;
int i;
cmsToneCurve* Curve[3];
cmsUInt16Number *gmr, *gmg, *gmb;
cmsHPROFILE hProfile;
cmsUInt32Number EmbedLen;
cmsUInt8Number* EmbedBuffer;
if (IgnoreEmbedded) return NULL;
if (TIFFGetField(in, TIFFTAG_ICCPROFILE, &EmbedLen, &EmbedBuffer)) {
hProfile = cmsOpenProfileFromMem(EmbedBuffer, EmbedLen);
// Print description found in the profile
if (Verbose) {
fprintf(stdout, "\n[Embedded profile]\n");
PrintProfileInformation(hProfile);
fflush(stdout);
}
if (hProfile != NULL && SaveEmbedded != NULL)
SaveMemoryBlock(EmbedBuffer, EmbedLen, SaveEmbedded);
if (hProfile) return hProfile;
}
// Try to see if "colorimetric" tiff
if (TIFFGetField(in, TIFFTAG_PRIMARYCHROMATICITIES, &chr)) {
Primaries.Red.x = chr[0];
Primaries.Red.y = chr[1];
Primaries.Green.x = chr[2];
Primaries.Green.y = chr[3];
Primaries.Blue.x = chr[4];
Primaries.Blue.y = chr[5];
Primaries.Red.Y = Primaries.Green.Y = Primaries.Blue.Y = 1.0;
if (TIFFGetField(in, TIFFTAG_WHITEPOINT, &wp)) {
WhitePoint.x = wp[0];
WhitePoint.y = wp[1];
WhitePoint.Y = 1.0;
// Transferfunction is a bit harder....
TIFFGetFieldDefaulted(in, TIFFTAG_TRANSFERFUNCTION,
&gmr,
&gmg,
&gmb);
Curve[0] = cmsBuildTabulatedToneCurve16(NULL, 256, gmr);
Curve[1] = cmsBuildTabulatedToneCurve16(NULL, 256, gmg);
Curve[2] = cmsBuildTabulatedToneCurve16(NULL, 256, gmb);
hProfile = cmsCreateRGBProfileTHR(NULL, &WhitePoint, &Primaries, Curve);
for (i=0; i < 3; i++)
cmsFreeToneCurve(Curve[i]);
if (Verbose) {
fprintf(stdout, "\n[Colorimetric TIFF]\n");
}
return hProfile;
}
}
return NULL;
}
// Transform one image
static
int TransformImage(TIFF* in, TIFF* out, const char *cDefInpProf)
{
cmsHPROFILE hIn, hOut, hProof, hInkLimit = NULL;
cmsHTRANSFORM xform;
cmsUInt32Number wInput, wOutput;
int OutputColorSpace;
int bps = Width / 8;
cmsUInt32Number dwFlags = 0;
int nPlanes;
// Observer adaptation state (only meaningful on absolute colorimetric intent)
cmsSetAdaptationState(ObserverAdaptationState);
if (EmbedProfile && cOutProf)
DoEmbedProfile(out, cOutProf);
if (BlackWhiteCompensation)
dwFlags |= cmsFLAGS_BLACKPOINTCOMPENSATION;
switch (PrecalcMode) {
case 0: dwFlags |= cmsFLAGS_NOOPTIMIZE; break;
case 2: dwFlags |= cmsFLAGS_HIGHRESPRECALC; break;
case 3: dwFlags |= cmsFLAGS_LOWRESPRECALC; break;
case 1: break;
default: FatalError("Unknown precalculation mode '%d'", PrecalcMode);
}
if (GamutCheck)
dwFlags |= cmsFLAGS_GAMUTCHECK;
hProof = NULL;
hOut = NULL;
if (lIsDeviceLink) {
hIn = cmsOpenProfileFromFile(cDefInpProf, "r");
}
else {
hIn = GetTIFFProfile(in);
if (hIn == NULL)
hIn = OpenStockProfile(NULL, cDefInpProf);
hOut = OpenStockProfile(NULL, cOutProf);
if (cProofing != NULL) {
hProof = OpenStockProfile(NULL, cProofing);
dwFlags |= cmsFLAGS_SOFTPROOFING;
}
}
// Take input color space
wInput = GetInputPixelType(in);
// Assure both, input profile and input TIFF are on same colorspace
if (_cmsLCMScolorSpace(cmsGetColorSpace(hIn)) != (int) T_COLORSPACE(wInput))
FatalError("Input profile is not operating in proper color space");
if (!lIsDeviceLink)
OutputColorSpace = _cmsLCMScolorSpace(cmsGetColorSpace(hOut));
else
OutputColorSpace = _cmsLCMScolorSpace(cmsGetPCS(hIn));
wOutput = ComputeOutputFormatDescriptor(wInput, OutputColorSpace, bps);
WriteOutputTags(out, OutputColorSpace, bps);
CopyOtherTags(in, out);
// Ink limit
if (InkLimit != 400.0 &&
(OutputColorSpace == PT_CMYK || OutputColorSpace == PT_CMY)) {
cmsHPROFILE hProfiles[10];
int nProfiles = 0;
hInkLimit = cmsCreateInkLimitingDeviceLink(cmsGetColorSpace(hOut), InkLimit);
hProfiles[nProfiles++] = hIn;
if (hProof) {
hProfiles[nProfiles++] = hProof;
hProfiles[nProfiles++] = hProof;
}
hProfiles[nProfiles++] = hOut;
hProfiles[nProfiles++] = hInkLimit;
xform = cmsCreateMultiprofileTransform(hProfiles, nProfiles,
wInput, wOutput, Intent, dwFlags);
}
else {
xform = cmsCreateProofingTransform(hIn, wInput,
hOut, wOutput,
hProof, Intent,
ProofingIntent,
dwFlags);
}
cmsCloseProfile(hIn);
cmsCloseProfile(hOut);
if (hInkLimit)
cmsCloseProfile(hInkLimit);
if (hProof)
cmsCloseProfile(hProof);
if (xform == NULL) return 0;
// Planar stuff
if (T_PLANAR(wInput))
nPlanes = T_CHANNELS(wInput) + T_EXTRA(wInput);
else
nPlanes = 1;
// Handle tile by tile or strip by strip
if (TIFFIsTiled(in)) {
TileBasedXform(xform, in, out, nPlanes);
}
else {
StripBasedXform(xform, in, out, nPlanes);
}
cmsDeleteTransform(xform);
TIFFWriteDirectory(out);
return 1;
}
// Print help
static
void Help(int level)
{
fprintf(stderr, "little cms ICC profile applier for TIFF - v6.2 [LittleCMS %2.2f]\n\n", LCMS_VERSION / 1000.0);
fflush(stderr);
switch(level) {
default:
case 0:
fprintf(stderr, "usage: tificc [flags] input.tif output.tif\n");
fprintf(stderr, "\nflags:\n\n");
fprintf(stderr, "%cv - Verbose\n", SW);
fprintf(stderr, "%ci<profile> - Input profile (defaults to sRGB)\n", SW);
fprintf(stderr, "%co<profile> - Output profile (defaults to sRGB)\n", SW);
fprintf(stderr, "%cl<profile> - Transform by device-link profile\n", SW);
PrintRenderingIntents();
fprintf(stderr, "%cb - Black point compensation\n", SW);
fprintf(stderr, "%cd<0..1> - Observer adaptation state (abs.col. only)\n", SW);
fprintf(stderr, "%cc<0,1,2,3> - Precalculates transform (0=Off, 1=Normal, 2=Hi-res, 3=LoRes)\n", SW);
fprintf(stderr, "\n");
fprintf(stderr, "%cw<8,16,32> - Output depth. Use 32 for floating-point\n\n", SW);
fprintf(stderr, "%ca - Handle channels > 4 as alpha\n", SW);
fprintf(stderr, "%cn - Ignore embedded profile on input\n", SW);
fprintf(stderr, "%ce - Embed destination profile\n", SW);
fprintf(stderr, "%cs<new profile> - Save embedded profile as <new profile>\n", SW);
fprintf(stderr, "\n");
fprintf(stderr, "%cp<profile> - Soft proof profile\n", SW);
fprintf(stderr, "%cm<n> - Soft proof intent\n", SW);
fprintf(stderr, "%cg - Marks out-of-gamut colors on softproof\n", SW);
fprintf(stderr, "\n");
fprintf(stderr, "%ck<0..400> - Ink-limiting in %% (CMYK only)\n", SW);
fprintf(stderr, "\n");
fprintf(stderr, "%ch<0,1,2,3> - More help\n", SW);
break;
case 1:
fprintf(stderr, "Examples:\n\n"
"To color correct from scanner to sRGB:\n"
"\ttificc %ciscanner.icm in.tif out.tif\n"
"To convert from monitor1 to monitor2:\n"
"\ttificc %cimon1.icm %comon2.icm in.tif out.tif\n"
"To make a CMYK separation:\n"
"\ttificc %coprinter.icm inrgb.tif outcmyk.tif\n"
"To recover sRGB from a CMYK separation:\n"
"\ttificc %ciprinter.icm incmyk.tif outrgb.tif\n"
"To convert from CIELab TIFF to sRGB\n"
"\ttificc %ci*Lab in.tif out.tif\n\n",
SW, SW, SW, SW, SW, SW);
break;
case 2:
PrintBuiltins();
break;
case 3:
fprintf(stderr, "This program is intended to be a demo of the little cms\n"
"engine. Both lcms and this program are freeware. You can\n"
"obtain both in source code at http://www.littlecms.com\n"
"For suggestions, comments, bug reports etc. send mail to\n"
"info@littlecms.com\n\n");
break;
}
fflush(stderr);
exit(0);
}
// The toggles stuff
static
void HandleSwitches(int argc, char *argv[])
{
int s;
while ((s=xgetopt(argc,argv,"aAeEbBw:W:nNvVGgh:H:i:I:o:O:P:p:t:T:c:C:l:L:M:m:K:k:S:s:D:d:")) != EOF) {
switch (s) {
case 'a':
case 'A':
StoreAsAlpha = TRUE;
break;
case 'b':
case 'B':
BlackWhiteCompensation = TRUE;
break;
case 'c':
case 'C':
PrecalcMode = atoi(xoptarg);
if (PrecalcMode < 0 || PrecalcMode > 3)
FatalError("Unknown precalc mode '%d'", PrecalcMode);
break;
case 'd':
case 'D': ObserverAdaptationState = atof(xoptarg);
if (ObserverAdaptationState < 0 ||
ObserverAdaptationState > 1.0)
Warning("Adaptation state should be 0..1");
break;
case 'e':
case 'E':
EmbedProfile = TRUE;
break;
case 'g':
case 'G':
GamutCheck = TRUE;
break;
case 'v':
case 'V':
Verbose = TRUE;
break;
case 'i':
case 'I':
if (lIsDeviceLink)
FatalError("Device-link already specified");
cInpProf = xoptarg;
break;
case 'o':
case 'O':
if (lIsDeviceLink)
FatalError("Device-link already specified");
cOutProf = xoptarg;
break;
case 'l':
case 'L':
if (cInpProf != NULL || cOutProf != NULL)
FatalError("input/output profiles already specified");
cInpProf = xoptarg;
lIsDeviceLink = TRUE;
break;
case 'p':
case 'P':
cProofing = xoptarg;
break;
case 't':
case 'T':
Intent = atoi(xoptarg);
break;
case 'm':
case 'M':
ProofingIntent = atoi(xoptarg);
break;
case 'N':
case 'n':
IgnoreEmbedded = TRUE;
break;
case 'W':
case 'w':
Width = atoi(xoptarg);
if (Width != 8 && Width != 16 && Width != 32)
FatalError("Only 8, 16 and 32 bps are supported");
break;
case 'k':
case 'K':
InkLimit = atof(xoptarg);
if (InkLimit < 0.0 || InkLimit > 400.0)
FatalError("Ink limit must be 0%%..400%%");
break;
case 's':
case 'S': SaveEmbedded = xoptarg;
break;
case 'H':
case 'h': {
int a = atoi(xoptarg);
Help(a);
}
break;
default:
FatalError("Unknown option - run without args to see valid ones");
}
}
}
// The main sink
int main(int argc, char* argv[])
{
TIFF *in, *out;
cmsPlugin(&TiffLabPlugin);
InitUtils("tificc");
HandleSwitches(argc, argv);
if ((argc - xoptind) != 2) {
Help(0);
}
TIFFSetErrorHandler(ConsoleErrorHandler);
TIFFSetWarningHandler(ConsoleWarningHandler);
in = TIFFOpen(argv[xoptind], "r");
if (in == NULL) FatalError("Unable to open '%s'", argv[xoptind]);
out = TIFFOpen(argv[xoptind+1], "w");
if (out == NULL) {
TIFFClose(in);
FatalError("Unable to write '%s'", argv[xoptind+1]);
}
do {
TransformImage(in, out, cInpProf);
} while (TIFFReadDirectory(in));
if (Verbose) { fprintf(stdout, "\n"); fflush(stdout); }
TIFFClose(in);
TIFFClose(out);
return 0;
}
|
35 | ./little-cms/utils/tificc/tifdiff.c | //---------------------------------------------------------------------------------
//
// Little Color Management System
// Copyright (c) 1998-2010 Marti Maria Saguer
//
// Permission is hereby granted, free of charge, to any person obtaining
// a copy of this software and associated documentation files (the "Software"),
// to deal in the Software without restriction, including without limitation
// the rights to use, copy, modify, merge, publish, distribute, sublicense,
// and/or sell copies of the Software, and to permit persons to whom the Software
// is furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO
// THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
// LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
// OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
// WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
//
//---------------------------------------------------------------------------------
//
#include "utils.h"
#include "tiffio.h"
// ------------------------------------------------------------------------
static TIFF *Tiff1, *Tiff2, *TiffDiff;
static const char* TiffDiffFilename;
static const char* CGATSout;
typedef struct {
double n, x, x2;
double Min, Peak;
} STAT, *LPSTAT;
static STAT ColorantStat[4];
static STAT EuclideanStat;
static STAT ColorimetricStat;
static uint16 Channels;
static cmsHPROFILE hLab;
static
void ConsoleWarningHandler(const char* module, const char* fmt, va_list ap)
{
char e[512] = { '\0' };
if (module != NULL)
strcat(strcpy(e, module), ": ");
vsprintf(e+strlen(e), fmt, ap);
strcat(e, ".");
if (Verbose) {
fprintf(stderr, "\nWarning");
fprintf(stderr, " %s\n", e);
fflush(stderr);
}
}
static
void ConsoleErrorHandler(const char* module, const char* fmt, va_list ap)
{
char e[512] = { '\0' };
if (module != NULL)
strcat(strcpy(e, module), ": ");
vsprintf(e+strlen(e), fmt, ap);
strcat(e, ".");
fprintf(stderr, "\nError");
fprintf(stderr, " %s\n", e);
fflush(stderr);
}
static
void Help()
{
fprintf(stderr, "Little cms TIFF compare utility. v1.0\n\n");
fprintf(stderr, "usage: tiffdiff [flags] input.tif output.tif\n");
fprintf(stderr, "\nflags:\n\n");
fprintf(stderr, "%co<tiff> - Output TIFF file\n", SW);
fprintf(stderr, "%cg<CGATS> - Output results in CGATS file\n", SW);
fprintf(stderr, "\n");
fprintf(stderr, "%cv - Verbose (show warnings)\n", SW);
fprintf(stderr, "%ch - This help\n", SW);
fflush(stderr);
exit(0);
}
// The toggles stuff
static
void HandleSwitches(int argc, char *argv[])
{
int s;
while ((s=xgetopt(argc,argv,"o:O:hHvVg:G:")) != EOF) {
switch (s) {
case 'v':
case 'V':
Verbose = TRUE;
break;
case 'o':
case 'O':
TiffDiffFilename = xoptarg;
break;
case 'H':
case 'h':
Help();
break;
case 'g':
case 'G':
CGATSout = xoptarg;
break;
default:
FatalError("Unknown option - run without args to see valid ones");
}
}
}
static
void ClearStatistics(LPSTAT st)
{
st ->n = st ->x = st->x2 = st->Peak = 0;
st ->Min = 1E10;
}
static
void AddOnePixel(LPSTAT st, double dE)
{
st-> x += dE; st ->x2 += (dE * dE); st->n += 1.0;
if (dE > st ->Peak) st ->Peak = dE;
if (dE < st ->Min) st ->Min= dE;
}
static
double Std(LPSTAT st)
{
return sqrt((st->n * st->x2 - st->x * st->x) / (st->n*(st->n-1)));
}
static
double Mean(LPSTAT st)
{
return st ->x/st ->n;
}
// Build up the pixeltype descriptor
static
cmsUInt32Number GetInputPixelType(TIFF *Bank)
{
uint16 Photometric, bps, spp, extra, PlanarConfig, *info;
uint16 Compression, reverse = 0;
int ColorChannels, IsPlanar = 0, pt = 0;
TIFFGetField(Bank, TIFFTAG_PHOTOMETRIC, &Photometric);
TIFFGetFieldDefaulted(Bank, TIFFTAG_BITSPERSAMPLE, &bps);
if (bps == 1)
FatalError("Sorry, bilevel TIFFs has nothig to do with ICC profiles");
if (bps != 8 && bps != 16)
FatalError("Sorry, 8 or 16 bits per sample only");
TIFFGetFieldDefaulted(Bank, TIFFTAG_SAMPLESPERPIXEL, &spp);
TIFFGetFieldDefaulted(Bank, TIFFTAG_PLANARCONFIG, &PlanarConfig);
switch (PlanarConfig)
{
case PLANARCONFIG_CONTIG: IsPlanar = 0; break;
case PLANARCONFIG_SEPARATE: FatalError("Planar TIFF are not supported");
default:
FatalError("Unsupported planar configuration (=%d) ", (int) PlanarConfig);
}
// If Samples per pixel == 1, PlanarConfiguration is irrelevant and need
// not to be included.
if (spp == 1) IsPlanar = 0;
// Any alpha?
TIFFGetFieldDefaulted(Bank, TIFFTAG_EXTRASAMPLES, &extra, &info);
ColorChannels = spp - extra;
switch (Photometric) {
case PHOTOMETRIC_MINISWHITE:
reverse = 1;
case PHOTOMETRIC_MINISBLACK:
pt = PT_GRAY;
break;
case PHOTOMETRIC_RGB:
pt = PT_RGB;
break;
case PHOTOMETRIC_PALETTE:
FatalError("Sorry, palette images not supported (at least on this version)");
case PHOTOMETRIC_SEPARATED:
pt = PixelTypeFromChanCount(ColorChannels);
break;
case PHOTOMETRIC_YCBCR:
TIFFGetField(Bank, TIFFTAG_COMPRESSION, &Compression);
{
uint16 subx, suby;
pt = PT_YCbCr;
TIFFGetFieldDefaulted(Bank, TIFFTAG_YCBCRSUBSAMPLING, &subx, &suby);
if (subx != 1 || suby != 1)
FatalError("Sorry, subsampled images not supported");
}
break;
case 9:
case PHOTOMETRIC_CIELAB:
pt = PT_Lab;
break;
case PHOTOMETRIC_LOGLUV: /* CIE Log2(L) (u',v') */
TIFFSetField(Bank, TIFFTAG_SGILOGDATAFMT, SGILOGDATAFMT_16BIT);
pt = PT_YUV; // *ICCSpace = icSigLuvData;
bps = 16; // 16 bits forced by LibTiff
break;
default:
FatalError("Unsupported TIFF color space (Photometric %d)", Photometric);
}
// Convert bits per sample to bytes per sample
bps >>= 3;
return (COLORSPACE_SH(pt)|PLANAR_SH(IsPlanar)|EXTRA_SH(extra)|CHANNELS_SH(ColorChannels)|BYTES_SH(bps)|FLAVOR_SH(reverse));
}
static
cmsUInt32Number OpenEmbedded(TIFF* tiff, cmsHPROFILE* PtrProfile, cmsHTRANSFORM* PtrXform)
{
cmsUInt32Number EmbedLen, dwFormat = 0;
cmsUInt8Number* EmbedBuffer;
*PtrProfile = NULL;
*PtrXform = NULL;
if (TIFFGetField(tiff, TIFFTAG_ICCPROFILE, &EmbedLen, &EmbedBuffer)) {
*PtrProfile = cmsOpenProfileFromMem(EmbedBuffer, EmbedLen);
if (Verbose) {
fprintf(stdout, "Embedded profile found:\n");
PrintProfileInformation(*PtrProfile);
}
dwFormat = GetInputPixelType(tiff);
*PtrXform = cmsCreateTransform(*PtrProfile, dwFormat,
hLab, TYPE_Lab_DBL, INTENT_RELATIVE_COLORIMETRIC, 0);
}
return dwFormat;
}
static
size_t PixelSize(cmsUInt32Number dwFormat)
{
return T_BYTES(dwFormat) * (T_CHANNELS(dwFormat) + T_EXTRA(dwFormat));
}
static
int CmpImages(TIFF* tiff1, TIFF* tiff2, TIFF* diff)
{
cmsUInt8Number* buf1, *buf2, *buf3=NULL;
int row, cols, imagewidth = 0, imagelength = 0;
uint16 Photometric;
double dE = 0;
double dR, dG, dB, dC, dM, dY, dK;
int rc = 0;
cmsHPROFILE hProfile1 = 0, hProfile2 = 0;
cmsHTRANSFORM xform1 = 0, xform2 = 0;
cmsUInt32Number dwFormat1, dwFormat2;
TIFFGetField(tiff1, TIFFTAG_PHOTOMETRIC, &Photometric);
TIFFGetField(tiff1, TIFFTAG_IMAGEWIDTH, &imagewidth);
TIFFGetField(tiff1, TIFFTAG_IMAGELENGTH, &imagelength);
TIFFGetField(tiff1, TIFFTAG_SAMPLESPERPIXEL, &Channels);
dwFormat1 = OpenEmbedded(tiff1, &hProfile1, &xform1);
dwFormat2 = OpenEmbedded(tiff2, &hProfile2, &xform2);
buf1 = (cmsUInt8Number*)_TIFFmalloc(TIFFScanlineSize(tiff1));
buf2 = (cmsUInt8Number*)_TIFFmalloc(TIFFScanlineSize(tiff2));
if (diff) {
TIFFSetField(diff, TIFFTAG_PHOTOMETRIC, PHOTOMETRIC_MINISBLACK);
TIFFSetField(diff, TIFFTAG_COMPRESSION, COMPRESSION_NONE);
TIFFSetField(diff, TIFFTAG_PLANARCONFIG, PLANARCONFIG_CONTIG);
TIFFSetField(diff, TIFFTAG_IMAGEWIDTH, imagewidth);
TIFFSetField(diff, TIFFTAG_IMAGELENGTH, imagelength);
TIFFSetField(diff, TIFFTAG_SAMPLESPERPIXEL, 1);
TIFFSetField(diff, TIFFTAG_BITSPERSAMPLE, 8);
buf3 = (cmsUInt8Number*)_TIFFmalloc(TIFFScanlineSize(diff));
}
for (row = 0; row < imagelength; row++) {
if (TIFFReadScanline(tiff1, buf1, row, 0) < 0) goto Error;
if (TIFFReadScanline(tiff2, buf2, row, 0) < 0) goto Error;
for (cols = 0; cols < imagewidth; cols++) {
switch (Photometric) {
case PHOTOMETRIC_MINISWHITE:
case PHOTOMETRIC_MINISBLACK:
dE = fabs(buf2[cols] - buf1[cols]);
AddOnePixel(&ColorantStat[0], dE);
AddOnePixel(&EuclideanStat, dE);
break;
case PHOTOMETRIC_RGB:
{
int index = 3 * cols;
dR = fabs(buf2[index+0] - buf1[index+0]);
dG = fabs(buf2[index+1] - buf1[index+1]);
dB = fabs(buf2[index+2] - buf1[index+2]);
dE = sqrt(dR * dR + dG * dG + dB * dB) / sqrt(3.);
}
AddOnePixel(&ColorantStat[0], dR);
AddOnePixel(&ColorantStat[1], dG);
AddOnePixel(&ColorantStat[2], dB);
AddOnePixel(&EuclideanStat, dE);
break;
case PHOTOMETRIC_SEPARATED:
{
int index = 4 * cols;
dC = fabs(buf2[index+0] - buf1[index+0]);
dM = fabs(buf2[index+1] - buf1[index+1]);
dY = fabs(buf2[index+2] - buf1[index+2]);
dK = fabs(buf2[index+3] - buf1[index+3]);
dE = sqrt(dC * dC + dM * dM + dY * dY + dK * dK) / 2.;
}
AddOnePixel(&ColorantStat[0], dC);
AddOnePixel(&ColorantStat[1], dM);
AddOnePixel(&ColorantStat[2], dY);
AddOnePixel(&ColorantStat[3], dK);
AddOnePixel(&EuclideanStat, dE);
break;
default:
FatalError("Unsupported channels: %d", Channels);
}
if (xform1 && xform2) {
cmsCIELab Lab1, Lab2;
size_t index1 = cols * PixelSize(dwFormat1);
size_t index2 = cols * PixelSize(dwFormat2);
cmsDoTransform(xform1, &buf1[index1], &Lab1, 1);
cmsDoTransform(xform2, &buf2[index2], &Lab2, 1);
dE = cmsDeltaE(&Lab1, &Lab2);
AddOnePixel(&ColorimetricStat, dE);
}
if (diff) {
buf3[cols] = (cmsUInt8Number) floor(dE + 0.5);
}
}
if (diff) {
if (TIFFWriteScanline(diff, buf3, row, 0) < 0) goto Error;
}
}
rc = 1;
Error:
if (hProfile1) cmsCloseProfile(hProfile1);
if (hProfile2) cmsCloseProfile(hProfile2);
if (xform1) cmsDeleteTransform(xform1);
if (xform2) cmsDeleteTransform(xform2);
_TIFFfree(buf1); _TIFFfree(buf2);
if (diff) {
TIFFWriteDirectory(diff);
if (buf3 != NULL) _TIFFfree(buf3);
}
return rc;
}
static
void AssureShortTagIs(TIFF* tif1, TIFF* tiff2, int tag, int Val, const char* Error)
{
uint16 v1;
if (!TIFFGetField(tif1, tag, &v1)) goto Err;
if (v1 != Val) goto Err;
if (!TIFFGetField(tiff2, tag, &v1)) goto Err;
if (v1 != Val) goto Err;
return;
Err:
FatalError("%s is not proper", Error);
}
static
int CmpShortTag(TIFF* tif1, TIFF* tif2, int tag)
{
uint16 v1, v2;
if (!TIFFGetField(tif1, tag, &v1)) return 0;
if (!TIFFGetField(tif2, tag, &v2)) return 0;
return v1 == v2;
}
static
int CmpLongTag(TIFF* tif1, TIFF* tif2, int tag)
{
uint32 v1, v2;
if (!TIFFGetField(tif1, tag, &v1)) return 0;
if (!TIFFGetField(tif2, tag, &v2)) return 0;
return v1 == v2;
}
static
void EqualShortTag(TIFF* tif1, TIFF* tif2, int tag, const char* Error)
{
if (!CmpShortTag(tif1, tif2, tag))
FatalError("%s is different", Error);
}
static
void EqualLongTag(TIFF* tif1, TIFF* tif2, int tag, const char* Error)
{
if (!CmpLongTag(tif1, tif2, tag))
FatalError("%s is different", Error);
}
static
void AddOneCGATSRow(cmsHANDLE hIT8, char *Name, LPSTAT st)
{
double Per100 = 100.0 * ((255.0 - Mean(st)) / 255.0);
cmsIT8SetData(hIT8, Name, "SAMPLE_ID", Name);
cmsIT8SetDataDbl(hIT8, Name, "PER100_EQUAL", Per100);
cmsIT8SetDataDbl(hIT8, Name, "MEAN_DE", Mean(st));
cmsIT8SetDataDbl(hIT8, Name, "STDEV_DE", Std(st));
cmsIT8SetDataDbl(hIT8, Name, "MIN_DE", st ->Min);
cmsIT8SetDataDbl(hIT8, Name, "MAX_DE", st ->Peak);
}
static
void CreateCGATS(const char* TiffName1, const char* TiffName2)
{
cmsHANDLE hIT8 = cmsIT8Alloc(0);
time_t ltime;
char Buffer[256];
cmsIT8SetSheetType(hIT8, "TIFFDIFF");
sprintf(Buffer, "Differences between %s and %s", TiffName1, TiffName2);
cmsIT8SetComment(hIT8, Buffer);
cmsIT8SetPropertyStr(hIT8, "ORIGINATOR", "TIFFDIFF");
time( <ime );
strcpy(Buffer, ctime(<ime));
Buffer[strlen(Buffer)-1] = 0; // Remove the nasty "\n"
cmsIT8SetPropertyStr(hIT8, "CREATED", Buffer);
cmsIT8SetComment(hIT8, " ");
cmsIT8SetPropertyDbl(hIT8, "NUMBER_OF_FIELDS", 6);
cmsIT8SetDataFormat(hIT8, 0, "SAMPLE_ID");
cmsIT8SetDataFormat(hIT8, 1, "PER100_EQUAL");
cmsIT8SetDataFormat(hIT8, 2, "MEAN_DE");
cmsIT8SetDataFormat(hIT8, 3, "STDEV_DE");
cmsIT8SetDataFormat(hIT8, 4, "MIN_DE");
cmsIT8SetDataFormat(hIT8, 5, "MAX_DE");
switch (Channels) {
case 1:
cmsIT8SetPropertyDbl(hIT8, "NUMBER_OF_SETS", 3);
AddOneCGATSRow(hIT8, "GRAY_PLANE", &ColorantStat[0]);
break;
case 3:
cmsIT8SetPropertyDbl(hIT8, "NUMBER_OF_SETS", 5);
AddOneCGATSRow(hIT8, "R_PLANE", &ColorantStat[0]);
AddOneCGATSRow(hIT8, "G_PLANE", &ColorantStat[1]);
AddOneCGATSRow(hIT8, "B_PLANE", &ColorantStat[2]);
break;
case 4:
cmsIT8SetPropertyDbl(hIT8, "NUMBER_OF_SETS", 6);
AddOneCGATSRow(hIT8, "C_PLANE", &ColorantStat[0]);
AddOneCGATSRow(hIT8, "M_PLANE", &ColorantStat[1]);
AddOneCGATSRow(hIT8, "Y_PLANE", &ColorantStat[2]);
AddOneCGATSRow(hIT8, "K_PLANE", &ColorantStat[3]);
break;
default: FatalError("Internal error: Bad ColorSpace");
}
AddOneCGATSRow(hIT8, "EUCLIDEAN", &EuclideanStat);
AddOneCGATSRow(hIT8, "COLORIMETRIC", &ColorimetricStat);
cmsIT8SaveToFile(hIT8, CGATSout);
cmsIT8Free(hIT8);
}
int main(int argc, char* argv[])
{
int i;
Tiff1 = Tiff2 = TiffDiff = NULL;
InitUtils("tiffdiff");
HandleSwitches(argc, argv);
if ((argc - xoptind) != 2) {
Help();
}
TIFFSetErrorHandler(ConsoleErrorHandler);
TIFFSetWarningHandler(ConsoleWarningHandler);
Tiff1 = TIFFOpen(argv[xoptind], "r");
if (Tiff1 == NULL) FatalError("Unable to open '%s'", argv[xoptind]);
Tiff2 = TIFFOpen(argv[xoptind+1], "r");
if (Tiff2 == NULL) FatalError("Unable to open '%s'", argv[xoptind+1]);
if (TiffDiffFilename) {
TiffDiff = TIFFOpen(TiffDiffFilename, "w");
if (TiffDiff == NULL) FatalError("Unable to create '%s'", TiffDiffFilename);
}
AssureShortTagIs(Tiff1, Tiff2, TIFFTAG_PLANARCONFIG, PLANARCONFIG_CONTIG, "Planar Config");
AssureShortTagIs(Tiff1, Tiff2, TIFFTAG_BITSPERSAMPLE, 8, "8 bit per sample");
EqualLongTag(Tiff1, Tiff2, TIFFTAG_IMAGEWIDTH, "Image width");
EqualLongTag(Tiff1, Tiff2, TIFFTAG_IMAGELENGTH, "Image length");
EqualShortTag(Tiff1, Tiff2, TIFFTAG_SAMPLESPERPIXEL, "Samples per pixel");
hLab = cmsCreateLab4Profile(NULL);
ClearStatistics(&EuclideanStat);
for (i=0; i < 4; i++)
ClearStatistics(&ColorantStat[i]);
if (!CmpImages(Tiff1, Tiff2, TiffDiff))
FatalError("Error comparing images");
if (CGATSout) {
CreateCGATS(argv[xoptind], argv[xoptind+1]);
}
else {
double Per100 = 100.0 * ((255.0 - Mean(&EuclideanStat)) / 255.0);
printf("Digital counts %g%% equal. mean %g, min %g, max %g, Std %g\n", Per100, Mean(&EuclideanStat),
EuclideanStat.Min,
EuclideanStat.Peak,
Std(&EuclideanStat));
if (ColorimetricStat.n > 0) {
Per100 = 100.0 * ((255.0 - Mean(&ColorimetricStat)) / 255.0);
printf("dE Colorimetric %g%% equal. mean %g, min %g, max %g, Std %g\n", Per100, Mean(&ColorimetricStat),
ColorimetricStat.Min,
ColorimetricStat.Peak,
Std(&ColorimetricStat));
}
}
if (hLab) cmsCloseProfile(hLab);
if (Tiff1) TIFFClose(Tiff1);
if (Tiff2) TIFFClose(Tiff2);
if (TiffDiff) TIFFClose(TiffDiff);
return 0;
}
|
36 | ./little-cms/testbed/testcms2.c | //---------------------------------------------------------------------------------
//
// Little Color Management System
// Copyright (c) 1998-2010 Marti Maria Saguer
//
// Permission is hereby granted, free of charge, to any person obtaining
// a copy of this software and associated documentation files (the "Software"),
// to deal in the Software without restriction, including without limitation
// the rights to use, copy, modify, merge, publish, distribute, sublicense,
// and/or sell copies of the Software, and to permit persons to whom the Software
// is furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO
// THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
// LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
// OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
// WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
//
//---------------------------------------------------------------------------------
//
#ifdef _MSC_VER
# define _CRT_SECURE_NO_WARNINGS 1
#endif
#include "lcms2_internal.h"
// On Visual Studio, use debug CRT
#ifdef _MSC_VER
# include "crtdbg.h"
# include <io.h>
#endif
// A single check. Returns 1 if success, 0 if failed
typedef cmsInt32Number (*TestFn)(void);
// A parametric Tone curve test function
typedef cmsFloat32Number (* dblfnptr)(cmsFloat32Number x, const cmsFloat64Number Params[]);
// Some globals to keep track of error
#define TEXT_ERROR_BUFFER_SIZE 4096
static char ReasonToFailBuffer[TEXT_ERROR_BUFFER_SIZE];
static char SubTestBuffer[TEXT_ERROR_BUFFER_SIZE];
static cmsInt32Number TotalTests = 0, TotalFail = 0;
static cmsBool TrappedError;
static cmsInt32Number SimultaneousErrors;
#define cmsmin(a, b) (((a) < (b)) ? (a) : (b))
// Die, a fatal unexpected error is detected!
static
void Die(const char* Reason)
{
printf("\n\nArrrgggg!!: %s!\n\n", Reason);
fflush(stdout);
exit(1);
}
// Memory management replacement -----------------------------------------------------------------------------
// This is just a simple plug-in for malloc, free and realloc to keep track of memory allocated,
// maximum requested as a single block and maximum allocated at a given time. Results are printed at the end
static cmsUInt32Number SingleHit, MaxAllocated=0, TotalMemory=0;
// I'm hidding the size before the block. This is a well-known technique and probably the blocks coming from
// malloc are built in a way similar to that, but I do on my own to be portable.
typedef struct {
cmsUInt32Number KeepSize;
cmsContext WhoAllocated;
union {
cmsUInt64Number HiSparc;
// '_cmsMemoryBlock' block is prepended by the
// allocator for any requested size. Thus, union holds
// "widest" type to guarantee proper '_cmsMemoryBlock'
// alignment for any requested size.
} alignment;
} _cmsMemoryBlock;
#define SIZE_OF_MEM_HEADER (sizeof(_cmsMemoryBlock))
// This is a fake thread descriptor used to check thread integrity.
// Basically it returns a different threadID each time it is called.
// Then the memory management replacement functions does check if each
// free() is being called with same ContextID used on malloc()
static
cmsContext DbgThread(void)
{
static cmsUInt32Number n = 1;
return (cmsContext) n++;
}
// The allocate routine
static
void* DebugMalloc(cmsContext ContextID, cmsUInt32Number size)
{
_cmsMemoryBlock* blk;
if (size <= 0) {
Die("malloc requested with zero bytes");
}
TotalMemory += size;
if (TotalMemory > MaxAllocated)
MaxAllocated = TotalMemory;
if (size > SingleHit)
SingleHit = size;
blk = (_cmsMemoryBlock*) malloc(size + SIZE_OF_MEM_HEADER);
if (blk == NULL) return NULL;
blk ->KeepSize = size;
blk ->WhoAllocated = ContextID;
return (void*) ((cmsUInt8Number*) blk + SIZE_OF_MEM_HEADER);
}
// The free routine
static
void DebugFree(cmsContext ContextID, void *Ptr)
{
_cmsMemoryBlock* blk;
if (Ptr == NULL) {
Die("NULL free (which is a no-op in C, but may be an clue of something going wrong)");
}
blk = (_cmsMemoryBlock*) (((cmsUInt8Number*) Ptr) - SIZE_OF_MEM_HEADER);
TotalMemory -= blk ->KeepSize;
if (blk ->WhoAllocated != ContextID) {
Die("Trying to free memory allocated by a different thread");
}
free(blk);
}
// Reallocate, just a malloc, a copy and a free in this case.
static
void * DebugRealloc(cmsContext ContextID, void* Ptr, cmsUInt32Number NewSize)
{
_cmsMemoryBlock* blk;
void* NewPtr;
cmsUInt32Number max_sz;
NewPtr = DebugMalloc(ContextID, NewSize);
if (Ptr == NULL) return NewPtr;
blk = (_cmsMemoryBlock*) (((cmsUInt8Number*) Ptr) - SIZE_OF_MEM_HEADER);
max_sz = blk -> KeepSize > NewSize ? NewSize : blk ->KeepSize;
memmove(NewPtr, Ptr, max_sz);
DebugFree(ContextID, Ptr);
return NewPtr;
}
// Let's know the totals
static
void DebugMemPrintTotals(void)
{
printf("[Memory statistics]\n");
printf("Allocated = %u MaxAlloc = %u Single block hit = %u\n", TotalMemory, MaxAllocated, SingleHit);
}
// Here we go with the plug-in declaration
static cmsPluginMemHandler DebugMemHandler = {{ cmsPluginMagicNumber, 2000, cmsPluginMemHandlerSig, NULL },
DebugMalloc, DebugFree, DebugRealloc, NULL, NULL, NULL };
// Utils -------------------------------------------------------------------------------------
static
void FatalErrorQuit(cmsContext ContextID, cmsUInt32Number ErrorCode, const char *Text)
{
Die(Text);
cmsUNUSED_PARAMETER(ContextID);
cmsUNUSED_PARAMETER(ErrorCode);
}
// Print a dot for gauging
static
void Dot(void)
{
fprintf(stdout, "."); fflush(stdout);
}
// Keep track of the reason to fail
static
void Fail(const char* frm, ...)
{
va_list args;
va_start(args, frm);
vsprintf(ReasonToFailBuffer, frm, args);
va_end(args);
}
// Keep track of subtest
static
void SubTest(const char* frm, ...)
{
va_list args;
Dot();
va_start(args, frm);
vsprintf(SubTestBuffer, frm, args);
va_end(args);
}
// Memory string
static
const char* MemStr(cmsUInt32Number size)
{
static char Buffer[1024];
if (size > 1024*1024) {
sprintf(Buffer, "%g Mb", (cmsFloat64Number) size / (1024.0*1024.0));
}
else
if (size > 1024) {
sprintf(Buffer, "%g Kb", (cmsFloat64Number) size / 1024.0);
}
else
sprintf(Buffer, "%g bytes", (cmsFloat64Number) size);
return Buffer;
}
// The check framework
static
void Check(const char* Title, TestFn Fn)
{
printf("Checking %s ...", Title);
fflush(stdout);
ReasonToFailBuffer[0] = 0;
SubTestBuffer[0] = 0;
TrappedError = FALSE;
SimultaneousErrors = 0;
TotalTests++;
if (Fn() && !TrappedError) {
// It is a good place to check memory
if (TotalMemory > 0)
printf("Ok, but %s are left!\n", MemStr(TotalMemory));
else
printf("Ok.\n");
}
else {
printf("FAIL!\n");
if (SubTestBuffer[0])
printf("%s: [%s]\n\t%s\n", Title, SubTestBuffer, ReasonToFailBuffer);
else
printf("%s:\n\t%s\n", Title, ReasonToFailBuffer);
if (SimultaneousErrors > 1)
printf("\tMore than one (%d) errors were reported\n", SimultaneousErrors);
TotalFail++;
}
fflush(stdout);
}
// Dump a tone curve, for easy diagnostic
void DumpToneCurve(cmsToneCurve* gamma, const char* FileName)
{
cmsHANDLE hIT8;
cmsUInt32Number i;
hIT8 = cmsIT8Alloc(gamma ->InterpParams->ContextID);
cmsIT8SetPropertyDbl(hIT8, "NUMBER_OF_FIELDS", 2);
cmsIT8SetPropertyDbl(hIT8, "NUMBER_OF_SETS", gamma ->nEntries);
cmsIT8SetDataFormat(hIT8, 0, "SAMPLE_ID");
cmsIT8SetDataFormat(hIT8, 1, "VALUE");
for (i=0; i < gamma ->nEntries; i++) {
char Val[30];
sprintf(Val, "%u", i);
cmsIT8SetDataRowCol(hIT8, i, 0, Val);
sprintf(Val, "0x%x", gamma ->Table16[i]);
cmsIT8SetDataRowCol(hIT8, i, 1, Val);
}
cmsIT8SaveToFile(hIT8, FileName);
cmsIT8Free(hIT8);
}
// -------------------------------------------------------------------------------------------------
// Used to perform several checks.
// The space used is a clone of a well-known commercial
// color space which I will name "Above RGB"
static
cmsHPROFILE Create_AboveRGB(void)
{
cmsToneCurve* Curve[3];
cmsHPROFILE hProfile;
cmsCIExyY D65;
cmsCIExyYTRIPLE Primaries = {{0.64, 0.33, 1 },
{0.21, 0.71, 1 },
{0.15, 0.06, 1 }};
Curve[0] = Curve[1] = Curve[2] = cmsBuildGamma(DbgThread(), 2.19921875);
cmsWhitePointFromTemp(&D65, 6504);
hProfile = cmsCreateRGBProfileTHR(DbgThread(), &D65, &Primaries, Curve);
cmsFreeToneCurve(Curve[0]);
return hProfile;
}
// A gamma-2.2 gray space
static
cmsHPROFILE Create_Gray22(void)
{
cmsHPROFILE hProfile;
cmsToneCurve* Curve = cmsBuildGamma(DbgThread(), 2.2);
if (Curve == NULL) return NULL;
hProfile = cmsCreateGrayProfileTHR(DbgThread(), cmsD50_xyY(), Curve);
cmsFreeToneCurve(Curve);
return hProfile;
}
// A gamma-3.0 gray space
static
cmsHPROFILE Create_Gray30(void)
{
cmsHPROFILE hProfile;
cmsToneCurve* Curve = cmsBuildGamma(DbgThread(), 3.0);
if (Curve == NULL) return NULL;
hProfile = cmsCreateGrayProfileTHR(DbgThread(), cmsD50_xyY(), Curve);
cmsFreeToneCurve(Curve);
return hProfile;
}
static
cmsHPROFILE Create_GrayLab(void)
{
cmsHPROFILE hProfile;
cmsToneCurve* Curve = cmsBuildGamma(DbgThread(), 1.0);
if (Curve == NULL) return NULL;
hProfile = cmsCreateGrayProfileTHR(DbgThread(), cmsD50_xyY(), Curve);
cmsFreeToneCurve(Curve);
cmsSetPCS(hProfile, cmsSigLabData);
return hProfile;
}
// A CMYK devicelink that adds gamma 3.0 to each channel
static
cmsHPROFILE Create_CMYK_DeviceLink(void)
{
cmsHPROFILE hProfile;
cmsToneCurve* Tab[4];
cmsToneCurve* Curve = cmsBuildGamma(DbgThread(), 3.0);
if (Curve == NULL) return NULL;
Tab[0] = Curve;
Tab[1] = Curve;
Tab[2] = Curve;
Tab[3] = Curve;
hProfile = cmsCreateLinearizationDeviceLinkTHR(DbgThread(), cmsSigCmykData, Tab);
if (hProfile == NULL) return NULL;
cmsFreeToneCurve(Curve);
return hProfile;
}
// Create a fake CMYK profile, without any other requeriment that being coarse CMYK.
// DONT USE THIS PROFILE FOR ANYTHING, IT IS USELESS BUT FOR TESTING PURPOSES.
typedef struct {
cmsHTRANSFORM hLab2sRGB;
cmsHTRANSFORM sRGB2Lab;
cmsHTRANSFORM hIlimit;
} FakeCMYKParams;
static
cmsFloat64Number Clip(cmsFloat64Number v)
{
if (v < 0) return 0;
if (v > 1) return 1;
return v;
}
static
cmsInt32Number ForwardSampler(register const cmsUInt16Number In[], cmsUInt16Number Out[], void* Cargo)
{
FakeCMYKParams* p = (FakeCMYKParams*) Cargo;
cmsFloat64Number rgb[3], cmyk[4];
cmsFloat64Number c, m, y, k;
cmsDoTransform(p ->hLab2sRGB, In, rgb, 1);
c = 1 - rgb[0];
m = 1 - rgb[1];
y = 1 - rgb[2];
k = (c < m ? cmsmin(c, y) : cmsmin(m, y));
// NONSENSE WARNING!: I'm doing this just because this is a test
// profile that may have ink limit up to 400%. There is no UCR here
// so the profile is basically useless for anything but testing.
cmyk[0] = c;
cmyk[1] = m;
cmyk[2] = y;
cmyk[3] = k;
cmsDoTransform(p ->hIlimit, cmyk, Out, 1);
return 1;
}
static
cmsInt32Number ReverseSampler(register const cmsUInt16Number In[], register cmsUInt16Number Out[], register void* Cargo)
{
FakeCMYKParams* p = (FakeCMYKParams*) Cargo;
cmsFloat64Number c, m, y, k, rgb[3];
c = In[0] / 65535.0;
m = In[1] / 65535.0;
y = In[2] / 65535.0;
k = In[3] / 65535.0;
if (k == 0) {
rgb[0] = Clip(1 - c);
rgb[1] = Clip(1 - m);
rgb[2] = Clip(1 - y);
}
else
if (k == 1) {
rgb[0] = rgb[1] = rgb[2] = 0;
}
else {
rgb[0] = Clip((1 - c) * (1 - k));
rgb[1] = Clip((1 - m) * (1 - k));
rgb[2] = Clip((1 - y) * (1 - k));
}
cmsDoTransform(p ->sRGB2Lab, rgb, Out, 1);
return 1;
}
static
cmsHPROFILE CreateFakeCMYK(cmsFloat64Number InkLimit, cmsBool lUseAboveRGB)
{
cmsHPROFILE hICC;
cmsPipeline* AToB0, *BToA0;
cmsStage* CLUT;
cmsContext ContextID;
FakeCMYKParams p;
cmsHPROFILE hLab, hsRGB, hLimit;
cmsUInt32Number cmykfrm;
if (lUseAboveRGB)
hsRGB = Create_AboveRGB();
else
hsRGB = cmsCreate_sRGBProfile();
hLab = cmsCreateLab4Profile(NULL);
hLimit = cmsCreateInkLimitingDeviceLink(cmsSigCmykData, InkLimit);
cmykfrm = FLOAT_SH(1) | BYTES_SH(0)|CHANNELS_SH(4);
p.hLab2sRGB = cmsCreateTransform(hLab, TYPE_Lab_16, hsRGB, TYPE_RGB_DBL, INTENT_PERCEPTUAL, cmsFLAGS_NOOPTIMIZE|cmsFLAGS_NOCACHE);
p.sRGB2Lab = cmsCreateTransform(hsRGB, TYPE_RGB_DBL, hLab, TYPE_Lab_16, INTENT_PERCEPTUAL, cmsFLAGS_NOOPTIMIZE|cmsFLAGS_NOCACHE);
p.hIlimit = cmsCreateTransform(hLimit, cmykfrm, NULL, TYPE_CMYK_16, INTENT_PERCEPTUAL, cmsFLAGS_NOOPTIMIZE|cmsFLAGS_NOCACHE);
cmsCloseProfile(hLab); cmsCloseProfile(hsRGB); cmsCloseProfile(hLimit);
ContextID = DbgThread();
hICC = cmsCreateProfilePlaceholder(ContextID);
if (!hICC) return NULL;
cmsSetProfileVersion(hICC, 4.3);
cmsSetDeviceClass(hICC, cmsSigOutputClass);
cmsSetColorSpace(hICC, cmsSigCmykData);
cmsSetPCS(hICC, cmsSigLabData);
BToA0 = cmsPipelineAlloc(ContextID, 3, 4);
if (BToA0 == NULL) return 0;
CLUT = cmsStageAllocCLut16bit(ContextID, 17, 3, 4, NULL);
if (CLUT == NULL) return 0;
if (!cmsStageSampleCLut16bit(CLUT, ForwardSampler, &p, 0)) return 0;
cmsPipelineInsertStage(BToA0, cmsAT_BEGIN, _cmsStageAllocIdentityCurves(ContextID, 3));
cmsPipelineInsertStage(BToA0, cmsAT_END, CLUT);
cmsPipelineInsertStage(BToA0, cmsAT_END, _cmsStageAllocIdentityCurves(ContextID, 4));
if (!cmsWriteTag(hICC, cmsSigBToA0Tag, (void*) BToA0)) return 0;
cmsPipelineFree(BToA0);
AToB0 = cmsPipelineAlloc(ContextID, 4, 3);
if (AToB0 == NULL) return 0;
CLUT = cmsStageAllocCLut16bit(ContextID, 17, 4, 3, NULL);
if (CLUT == NULL) return 0;
if (!cmsStageSampleCLut16bit(CLUT, ReverseSampler, &p, 0)) return 0;
cmsPipelineInsertStage(AToB0, cmsAT_BEGIN, _cmsStageAllocIdentityCurves(ContextID, 4));
cmsPipelineInsertStage(AToB0, cmsAT_END, CLUT);
cmsPipelineInsertStage(AToB0, cmsAT_END, _cmsStageAllocIdentityCurves(ContextID, 3));
if (!cmsWriteTag(hICC, cmsSigAToB0Tag, (void*) AToB0)) return 0;
cmsPipelineFree(AToB0);
cmsDeleteTransform(p.hLab2sRGB);
cmsDeleteTransform(p.sRGB2Lab);
cmsDeleteTransform(p.hIlimit);
cmsLinkTag(hICC, cmsSigAToB1Tag, cmsSigAToB0Tag);
cmsLinkTag(hICC, cmsSigAToB2Tag, cmsSigAToB0Tag);
cmsLinkTag(hICC, cmsSigBToA1Tag, cmsSigBToA0Tag);
cmsLinkTag(hICC, cmsSigBToA2Tag, cmsSigBToA0Tag);
return hICC;
}
// Does create several profiles for latter use------------------------------------------------------------------------------------------------
static
cmsInt32Number OneVirtual(cmsHPROFILE h, const char* SubTestTxt, const char* FileName)
{
SubTest(SubTestTxt);
if (h == NULL) return 0;
if (!cmsSaveProfileToFile(h, FileName)) return 0;
cmsCloseProfile(h);
h = cmsOpenProfileFromFile(FileName, "r");
if (h == NULL) return 0;
// Do some teste....
cmsCloseProfile(h);
return 1;
}
// This test checks the ability of lcms2 to save its built-ins as valid profiles.
// It does not check the functionality of such profiles
static
cmsInt32Number CreateTestProfiles(void)
{
cmsHPROFILE h;
h = cmsCreate_sRGBProfileTHR(DbgThread());
if (!OneVirtual(h, "sRGB profile", "sRGBlcms2.icc")) return 0;
// ----
h = Create_AboveRGB();
if (!OneVirtual(h, "aRGB profile", "aRGBlcms2.icc")) return 0;
// ----
h = Create_Gray22();
if (!OneVirtual(h, "Gray profile", "graylcms2.icc")) return 0;
// ----
h = Create_Gray30();
if (!OneVirtual(h, "Gray 3.0 profile", "gray3lcms2.icc")) return 0;
// ----
h = Create_GrayLab();
if (!OneVirtual(h, "Gray Lab profile", "glablcms2.icc")) return 0;
// ----
h = Create_CMYK_DeviceLink();
if (!OneVirtual(h, "Linearization profile", "linlcms2.icc")) return 0;
// -------
h = cmsCreateInkLimitingDeviceLinkTHR(DbgThread(), cmsSigCmykData, 150);
if (h == NULL) return 0;
if (!OneVirtual(h, "Ink-limiting profile", "limitlcms2.icc")) return 0;
// ------
h = cmsCreateLab2ProfileTHR(DbgThread(), NULL);
if (!OneVirtual(h, "Lab 2 identity profile", "labv2lcms2.icc")) return 0;
// ----
h = cmsCreateLab4ProfileTHR(DbgThread(), NULL);
if (!OneVirtual(h, "Lab 4 identity profile", "labv4lcms2.icc")) return 0;
// ----
h = cmsCreateXYZProfileTHR(DbgThread());
if (!OneVirtual(h, "XYZ identity profile", "xyzlcms2.icc")) return 0;
// ----
h = cmsCreateNULLProfileTHR(DbgThread());
if (!OneVirtual(h, "NULL profile", "nullcms2.icc")) return 0;
// ---
h = cmsCreateBCHSWabstractProfileTHR(DbgThread(), 17, 0, 0, 0, 0, 5000, 6000);
if (!OneVirtual(h, "BCHS profile", "bchslcms2.icc")) return 0;
// ---
h = CreateFakeCMYK(300, FALSE);
if (!OneVirtual(h, "Fake CMYK profile", "lcms2cmyk.icc")) return 0;
return 1;
}
static
void RemoveTestProfiles(void)
{
remove("sRGBlcms2.icc");
remove("aRGBlcms2.icc");
remove("graylcms2.icc");
remove("gray3lcms2.icc");
remove("linlcms2.icc");
remove("limitlcms2.icc");
remove("labv2lcms2.icc");
remove("labv4lcms2.icc");
remove("xyzlcms2.icc");
remove("nullcms2.icc");
remove("bchslcms2.icc");
remove("lcms2cmyk.icc");
remove("glablcms2.icc");
remove("lcms2link.icc");
remove("lcms2link2.icc");
}
// -------------------------------------------------------------------------------------------------
// Check the size of basic types. If this test fails, nothing is going to work anyway
static
cmsInt32Number CheckBaseTypes(void)
{
// Ignore warnings about conditional expression
#ifdef _MSC_VER
#pragma warning(disable: 4127)
#endif
if (sizeof(cmsUInt8Number) != 1) return 0;
if (sizeof(cmsInt8Number) != 1) return 0;
if (sizeof(cmsUInt16Number) != 2) return 0;
if (sizeof(cmsInt16Number) != 2) return 0;
if (sizeof(cmsUInt32Number) != 4) return 0;
if (sizeof(cmsInt32Number) != 4) return 0;
if (sizeof(cmsUInt64Number) != 8) return 0;
if (sizeof(cmsInt64Number) != 8) return 0;
if (sizeof(cmsFloat32Number) != 4) return 0;
if (sizeof(cmsFloat64Number) != 8) return 0;
if (sizeof(cmsSignature) != 4) return 0;
if (sizeof(cmsU8Fixed8Number) != 2) return 0;
if (sizeof(cmsS15Fixed16Number) != 4) return 0;
if (sizeof(cmsU16Fixed16Number) != 4) return 0;
return 1;
}
// -------------------------------------------------------------------------------------------------
// Are we little or big endian? From Harbison&Steele.
static
cmsInt32Number CheckEndianess(void)
{
cmsInt32Number BigEndian, IsOk;
union {
long l;
char c[sizeof (long)];
} u;
u.l = 1;
BigEndian = (u.c[sizeof (long) - 1] == 1);
#ifdef CMS_USE_BIG_ENDIAN
IsOk = BigEndian;
#else
IsOk = !BigEndian;
#endif
if (!IsOk) {
Fail("\nOOOPPSS! You have CMS_USE_BIG_ENDIAN toggle misconfigured!\n\n"
"Please, edit lcms2.h and %s the CMS_USE_BIG_ENDIAN toggle.\n", BigEndian? "uncomment" : "comment");
return 0;
}
return 1;
}
// Check quick floor
static
cmsInt32Number CheckQuickFloor(void)
{
if ((_cmsQuickFloor(1.234) != 1) ||
(_cmsQuickFloor(32767.234) != 32767) ||
(_cmsQuickFloor(-1.234) != -2) ||
(_cmsQuickFloor(-32767.1) != -32768)) {
Fail("\nOOOPPSS! _cmsQuickFloor() does not work as expected in your machine!\n\n"
"Please, edit lcms.h and uncomment the CMS_DONT_USE_FAST_FLOOR toggle.\n");
return 0;
}
return 1;
}
// Quick floor restricted to word
static
cmsInt32Number CheckQuickFloorWord(void)
{
cmsUInt32Number i;
for (i=0; i < 65535; i++) {
if (_cmsQuickFloorWord((cmsFloat64Number) i + 0.1234) != i) {
Fail("\nOOOPPSS! _cmsQuickFloorWord() does not work as expected in your machine!\n\n"
"Please, edit lcms.h and uncomment the CMS_DONT_USE_FAST_FLOOR toggle.\n");
return 0;
}
}
return 1;
}
// -------------------------------------------------------------------------------------------------
// Precision stuff.
// On 15.16 fixed point, this is the maximum we can obtain. Remember ICC profiles have storage limits on this number
#define FIXED_PRECISION_15_16 (1.0 / 65535.0)
// On 8.8 fixed point, that is the max we can obtain.
#define FIXED_PRECISION_8_8 (1.0 / 255.0)
// On cmsFloat32Number type, this is the precision we expect
#define FLOAT_PRECISSION (0.00001)
static cmsFloat64Number MaxErr;
static cmsFloat64Number AllowedErr = FIXED_PRECISION_15_16;
static
cmsBool IsGoodVal(const char *title, cmsFloat64Number in, cmsFloat64Number out, cmsFloat64Number max)
{
cmsFloat64Number Err = fabs(in - out);
if (Err > MaxErr) MaxErr = Err;
if ((Err > max )) {
Fail("(%s): Must be %f, But is %f ", title, in, out);
return FALSE;
}
return TRUE;
}
static
cmsBool IsGoodFixed15_16(const char *title, cmsFloat64Number in, cmsFloat64Number out)
{
return IsGoodVal(title, in, out, FIXED_PRECISION_15_16);
}
static
cmsBool IsGoodFixed8_8(const char *title, cmsFloat64Number in, cmsFloat64Number out)
{
return IsGoodVal(title, in, out, FIXED_PRECISION_8_8);
}
static
cmsBool IsGoodWord(const char *title, cmsUInt16Number in, cmsUInt16Number out)
{
if ((abs(in - out) > 0 )) {
Fail("(%s): Must be %x, But is %x ", title, in, out);
return FALSE;
}
return TRUE;
}
static
cmsBool IsGoodWordPrec(const char *title, cmsUInt16Number in, cmsUInt16Number out, cmsUInt16Number maxErr)
{
if ((abs(in - out) > maxErr )) {
Fail("(%s): Must be %x, But is %x ", title, in, out);
return FALSE;
}
return TRUE;
}
// Fixed point ----------------------------------------------------------------------------------------------
static
cmsInt32Number TestSingleFixed15_16(cmsFloat64Number d)
{
cmsS15Fixed16Number f = _cmsDoubleTo15Fixed16(d);
cmsFloat64Number RoundTrip = _cms15Fixed16toDouble(f);
cmsFloat64Number Error = fabs(d - RoundTrip);
return ( Error <= FIXED_PRECISION_15_16);
}
static
cmsInt32Number CheckFixedPoint15_16(void)
{
if (!TestSingleFixed15_16(1.0)) return 0;
if (!TestSingleFixed15_16(2.0)) return 0;
if (!TestSingleFixed15_16(1.23456)) return 0;
if (!TestSingleFixed15_16(0.99999)) return 0;
if (!TestSingleFixed15_16(0.1234567890123456789099999)) return 0;
if (!TestSingleFixed15_16(-1.0)) return 0;
if (!TestSingleFixed15_16(-2.0)) return 0;
if (!TestSingleFixed15_16(-1.23456)) return 0;
if (!TestSingleFixed15_16(-1.1234567890123456789099999)) return 0;
if (!TestSingleFixed15_16(+32767.1234567890123456789099999)) return 0;
if (!TestSingleFixed15_16(-32767.1234567890123456789099999)) return 0;
return 1;
}
static
cmsInt32Number TestSingleFixed8_8(cmsFloat64Number d)
{
cmsS15Fixed16Number f = _cmsDoubleTo8Fixed8(d);
cmsFloat64Number RoundTrip = _cms8Fixed8toDouble((cmsUInt16Number) f);
cmsFloat64Number Error = fabs(d - RoundTrip);
return ( Error <= FIXED_PRECISION_8_8);
}
static
cmsInt32Number CheckFixedPoint8_8(void)
{
if (!TestSingleFixed8_8(1.0)) return 0;
if (!TestSingleFixed8_8(2.0)) return 0;
if (!TestSingleFixed8_8(1.23456)) return 0;
if (!TestSingleFixed8_8(0.99999)) return 0;
if (!TestSingleFixed8_8(0.1234567890123456789099999)) return 0;
if (!TestSingleFixed8_8(+255.1234567890123456789099999)) return 0;
return 1;
}
// Linear interpolation -----------------------------------------------------------------------------------------------
// Since prime factors of 65535 (FFFF) are,
//
// 0xFFFF = 3 * 5 * 17 * 257
//
// I test tables of 2, 4, 6, and 18 points, that will be exact.
static
void BuildTable(cmsInt32Number n, cmsUInt16Number Tab[], cmsBool Descending)
{
cmsInt32Number i;
for (i=0; i < n; i++) {
cmsFloat64Number v = (cmsFloat64Number) ((cmsFloat64Number) 65535.0 * i ) / (n-1);
Tab[Descending ? (n - i - 1) : i ] = (cmsUInt16Number) floor(v + 0.5);
}
}
// A single function that does check 1D interpolation
// nNodesToCheck = number on nodes to check
// Down = Create decreasing tables
// Reverse = Check reverse interpolation
// max_err = max allowed error
static
cmsInt32Number Check1D(cmsInt32Number nNodesToCheck, cmsBool Down, cmsInt32Number max_err)
{
cmsUInt32Number i;
cmsUInt16Number in, out;
cmsInterpParams* p;
cmsUInt16Number* Tab;
Tab = (cmsUInt16Number*) malloc(sizeof(cmsUInt16Number)* nNodesToCheck);
if (Tab == NULL) return 0;
p = _cmsComputeInterpParams(DbgThread(), nNodesToCheck, 1, 1, Tab, CMS_LERP_FLAGS_16BITS);
if (p == NULL) return 0;
BuildTable(nNodesToCheck, Tab, Down);
for (i=0; i <= 0xffff; i++) {
in = (cmsUInt16Number) i;
out = 0;
p ->Interpolation.Lerp16(&in, &out, p);
if (Down) out = 0xffff - out;
if (abs(out - in) > max_err) {
Fail("(%dp): Must be %x, But is %x : ", nNodesToCheck, in, out);
_cmsFreeInterpParams(p);
free(Tab);
return 0;
}
}
_cmsFreeInterpParams(p);
free(Tab);
return 1;
}
static
cmsInt32Number Check1DLERP2(void)
{
return Check1D(2, FALSE, 0);
}
static
cmsInt32Number Check1DLERP3(void)
{
return Check1D(3, FALSE, 1);
}
static
cmsInt32Number Check1DLERP4(void)
{
return Check1D(4, FALSE, 0);
}
static
cmsInt32Number Check1DLERP6(void)
{
return Check1D(6, FALSE, 0);
}
static
cmsInt32Number Check1DLERP18(void)
{
return Check1D(18, FALSE, 0);
}
static
cmsInt32Number Check1DLERP2Down(void)
{
return Check1D(2, TRUE, 0);
}
static
cmsInt32Number Check1DLERP3Down(void)
{
return Check1D(3, TRUE, 1);
}
static
cmsInt32Number Check1DLERP6Down(void)
{
return Check1D(6, TRUE, 0);
}
static
cmsInt32Number Check1DLERP18Down(void)
{
return Check1D(18, TRUE, 0);
}
static
cmsInt32Number ExhaustiveCheck1DLERP(void)
{
cmsUInt32Number j;
printf("\n");
for (j=10; j <= 4096; j++) {
if ((j % 10) == 0) printf("%u \r", j);
if (!Check1D(j, FALSE, 1)) return 0;
}
printf("\rResult is ");
return 1;
}
static
cmsInt32Number ExhaustiveCheck1DLERPDown(void)
{
cmsUInt32Number j;
printf("\n");
for (j=10; j <= 4096; j++) {
if ((j % 10) == 0) printf("%u \r", j);
if (!Check1D(j, TRUE, 1)) return 0;
}
printf("\rResult is ");
return 1;
}
// 3D interpolation -------------------------------------------------------------------------------------------------
static
cmsInt32Number Check3DinterpolationFloatTetrahedral(void)
{
cmsInterpParams* p;
cmsInt32Number i;
cmsFloat32Number In[3], Out[3];
cmsFloat32Number FloatTable[] = { //R G B
0, 0, 0, // B=0,G=0,R=0
0, 0, .25, // B=1,G=0,R=0
0, .5, 0, // B=0,G=1,R=0
0, .5, .25, // B=1,G=1,R=0
1, 0, 0, // B=0,G=0,R=1
1, 0, .25, // B=1,G=0,R=1
1, .5, 0, // B=0,G=1,R=1
1, .5, .25 // B=1,G=1,R=1
};
p = _cmsComputeInterpParams(DbgThread(), 2, 3, 3, FloatTable, CMS_LERP_FLAGS_FLOAT);
MaxErr = 0.0;
for (i=0; i < 0xffff; i++) {
In[0] = In[1] = In[2] = (cmsFloat32Number) ( (cmsFloat32Number) i / 65535.0F);
p ->Interpolation.LerpFloat(In, Out, p);
if (!IsGoodFixed15_16("Channel 1", Out[0], In[0])) goto Error;
if (!IsGoodFixed15_16("Channel 2", Out[1], (cmsFloat32Number) In[1] / 2.F)) goto Error;
if (!IsGoodFixed15_16("Channel 3", Out[2], (cmsFloat32Number) In[2] / 4.F)) goto Error;
}
if (MaxErr > 0) printf("|Err|<%lf ", MaxErr);
_cmsFreeInterpParams(p);
return 1;
Error:
_cmsFreeInterpParams(p);
return 0;
}
static
cmsInt32Number Check3DinterpolationFloatTrilinear(void)
{
cmsInterpParams* p;
cmsInt32Number i;
cmsFloat32Number In[3], Out[3];
cmsFloat32Number FloatTable[] = { //R G B
0, 0, 0, // B=0,G=0,R=0
0, 0, .25, // B=1,G=0,R=0
0, .5, 0, // B=0,G=1,R=0
0, .5, .25, // B=1,G=1,R=0
1, 0, 0, // B=0,G=0,R=1
1, 0, .25, // B=1,G=0,R=1
1, .5, 0, // B=0,G=1,R=1
1, .5, .25 // B=1,G=1,R=1
};
p = _cmsComputeInterpParams(DbgThread(), 2, 3, 3, FloatTable, CMS_LERP_FLAGS_FLOAT|CMS_LERP_FLAGS_TRILINEAR);
MaxErr = 0.0;
for (i=0; i < 0xffff; i++) {
In[0] = In[1] = In[2] = (cmsFloat32Number) ( (cmsFloat32Number) i / 65535.0F);
p ->Interpolation.LerpFloat(In, Out, p);
if (!IsGoodFixed15_16("Channel 1", Out[0], In[0])) goto Error;
if (!IsGoodFixed15_16("Channel 2", Out[1], (cmsFloat32Number) In[1] / 2.F)) goto Error;
if (!IsGoodFixed15_16("Channel 3", Out[2], (cmsFloat32Number) In[2] / 4.F)) goto Error;
}
if (MaxErr > 0) printf("|Err|<%lf ", MaxErr);
_cmsFreeInterpParams(p);
return 1;
Error:
_cmsFreeInterpParams(p);
return 0;
}
static
cmsInt32Number Check3DinterpolationTetrahedral16(void)
{
cmsInterpParams* p;
cmsInt32Number i;
cmsUInt16Number In[3], Out[3];
cmsUInt16Number Table[] = {
0, 0, 0,
0, 0, 0xffff,
0, 0xffff, 0,
0, 0xffff, 0xffff,
0xffff, 0, 0,
0xffff, 0, 0xffff,
0xffff, 0xffff, 0,
0xffff, 0xffff, 0xffff
};
p = _cmsComputeInterpParams(DbgThread(), 2, 3, 3, Table, CMS_LERP_FLAGS_16BITS);
MaxErr = 0.0;
for (i=0; i < 0xffff; i++) {
In[0] = In[1] = In[2] = (cmsUInt16Number) i;
p ->Interpolation.Lerp16(In, Out, p);
if (!IsGoodWord("Channel 1", Out[0], In[0])) goto Error;
if (!IsGoodWord("Channel 2", Out[1], In[1])) goto Error;
if (!IsGoodWord("Channel 3", Out[2], In[2])) goto Error;
}
if (MaxErr > 0) printf("|Err|<%lf ", MaxErr);
_cmsFreeInterpParams(p);
return 1;
Error:
_cmsFreeInterpParams(p);
return 0;
}
static
cmsInt32Number Check3DinterpolationTrilinear16(void)
{
cmsInterpParams* p;
cmsInt32Number i;
cmsUInt16Number In[3], Out[3];
cmsUInt16Number Table[] = {
0, 0, 0,
0, 0, 0xffff,
0, 0xffff, 0,
0, 0xffff, 0xffff,
0xffff, 0, 0,
0xffff, 0, 0xffff,
0xffff, 0xffff, 0,
0xffff, 0xffff, 0xffff
};
p = _cmsComputeInterpParams(DbgThread(), 2, 3, 3, Table, CMS_LERP_FLAGS_TRILINEAR);
MaxErr = 0.0;
for (i=0; i < 0xffff; i++) {
In[0] = In[1] = In[2] = (cmsUInt16Number) i;
p ->Interpolation.Lerp16(In, Out, p);
if (!IsGoodWord("Channel 1", Out[0], In[0])) goto Error;
if (!IsGoodWord("Channel 2", Out[1], In[1])) goto Error;
if (!IsGoodWord("Channel 3", Out[2], In[2])) goto Error;
}
if (MaxErr > 0) printf("|Err|<%lf ", MaxErr);
_cmsFreeInterpParams(p);
return 1;
Error:
_cmsFreeInterpParams(p);
return 0;
}
static
cmsInt32Number ExaustiveCheck3DinterpolationFloatTetrahedral(void)
{
cmsInterpParams* p;
cmsInt32Number r, g, b;
cmsFloat32Number In[3], Out[3];
cmsFloat32Number FloatTable[] = { //R G B
0, 0, 0, // B=0,G=0,R=0
0, 0, .25, // B=1,G=0,R=0
0, .5, 0, // B=0,G=1,R=0
0, .5, .25, // B=1,G=1,R=0
1, 0, 0, // B=0,G=0,R=1
1, 0, .25, // B=1,G=0,R=1
1, .5, 0, // B=0,G=1,R=1
1, .5, .25 // B=1,G=1,R=1
};
p = _cmsComputeInterpParams(DbgThread(), 2, 3, 3, FloatTable, CMS_LERP_FLAGS_FLOAT);
MaxErr = 0.0;
for (r=0; r < 0xff; r++)
for (g=0; g < 0xff; g++)
for (b=0; b < 0xff; b++)
{
In[0] = (cmsFloat32Number) r / 255.0F;
In[1] = (cmsFloat32Number) g / 255.0F;
In[2] = (cmsFloat32Number) b / 255.0F;
p ->Interpolation.LerpFloat(In, Out, p);
if (!IsGoodFixed15_16("Channel 1", Out[0], In[0])) goto Error;
if (!IsGoodFixed15_16("Channel 2", Out[1], (cmsFloat32Number) In[1] / 2.F)) goto Error;
if (!IsGoodFixed15_16("Channel 3", Out[2], (cmsFloat32Number) In[2] / 4.F)) goto Error;
}
if (MaxErr > 0) printf("|Err|<%lf ", MaxErr);
_cmsFreeInterpParams(p);
return 1;
Error:
_cmsFreeInterpParams(p);
return 0;
}
static
cmsInt32Number ExaustiveCheck3DinterpolationFloatTrilinear(void)
{
cmsInterpParams* p;
cmsInt32Number r, g, b;
cmsFloat32Number In[3], Out[3];
cmsFloat32Number FloatTable[] = { //R G B
0, 0, 0, // B=0,G=0,R=0
0, 0, .25, // B=1,G=0,R=0
0, .5, 0, // B=0,G=1,R=0
0, .5, .25, // B=1,G=1,R=0
1, 0, 0, // B=0,G=0,R=1
1, 0, .25, // B=1,G=0,R=1
1, .5, 0, // B=0,G=1,R=1
1, .5, .25 // B=1,G=1,R=1
};
p = _cmsComputeInterpParams(DbgThread(), 2, 3, 3, FloatTable, CMS_LERP_FLAGS_FLOAT|CMS_LERP_FLAGS_TRILINEAR);
MaxErr = 0.0;
for (r=0; r < 0xff; r++)
for (g=0; g < 0xff; g++)
for (b=0; b < 0xff; b++)
{
In[0] = (cmsFloat32Number) r / 255.0F;
In[1] = (cmsFloat32Number) g / 255.0F;
In[2] = (cmsFloat32Number) b / 255.0F;
p ->Interpolation.LerpFloat(In, Out, p);
if (!IsGoodFixed15_16("Channel 1", Out[0], In[0])) goto Error;
if (!IsGoodFixed15_16("Channel 2", Out[1], (cmsFloat32Number) In[1] / 2.F)) goto Error;
if (!IsGoodFixed15_16("Channel 3", Out[2], (cmsFloat32Number) In[2] / 4.F)) goto Error;
}
if (MaxErr > 0) printf("|Err|<%lf ", MaxErr);
_cmsFreeInterpParams(p);
return 1;
Error:
_cmsFreeInterpParams(p);
return 0;
}
static
cmsInt32Number ExhaustiveCheck3DinterpolationTetrahedral16(void)
{
cmsInterpParams* p;
cmsInt32Number r, g, b;
cmsUInt16Number In[3], Out[3];
cmsUInt16Number Table[] = {
0, 0, 0,
0, 0, 0xffff,
0, 0xffff, 0,
0, 0xffff, 0xffff,
0xffff, 0, 0,
0xffff, 0, 0xffff,
0xffff, 0xffff, 0,
0xffff, 0xffff, 0xffff
};
p = _cmsComputeInterpParams(DbgThread(), 2, 3, 3, Table, CMS_LERP_FLAGS_16BITS);
for (r=0; r < 0xff; r++)
for (g=0; g < 0xff; g++)
for (b=0; b < 0xff; b++)
{
In[0] = (cmsUInt16Number) r ;
In[1] = (cmsUInt16Number) g ;
In[2] = (cmsUInt16Number) b ;
p ->Interpolation.Lerp16(In, Out, p);
if (!IsGoodWord("Channel 1", Out[0], In[0])) goto Error;
if (!IsGoodWord("Channel 2", Out[1], In[1])) goto Error;
if (!IsGoodWord("Channel 3", Out[2], In[2])) goto Error;
}
_cmsFreeInterpParams(p);
return 1;
Error:
_cmsFreeInterpParams(p);
return 0;
}
static
cmsInt32Number ExhaustiveCheck3DinterpolationTrilinear16(void)
{
cmsInterpParams* p;
cmsInt32Number r, g, b;
cmsUInt16Number In[3], Out[3];
cmsUInt16Number Table[] = {
0, 0, 0,
0, 0, 0xffff,
0, 0xffff, 0,
0, 0xffff, 0xffff,
0xffff, 0, 0,
0xffff, 0, 0xffff,
0xffff, 0xffff, 0,
0xffff, 0xffff, 0xffff
};
p = _cmsComputeInterpParams(DbgThread(), 2, 3, 3, Table, CMS_LERP_FLAGS_TRILINEAR);
for (r=0; r < 0xff; r++)
for (g=0; g < 0xff; g++)
for (b=0; b < 0xff; b++)
{
In[0] = (cmsUInt16Number) r ;
In[1] = (cmsUInt16Number)g ;
In[2] = (cmsUInt16Number)b ;
p ->Interpolation.Lerp16(In, Out, p);
if (!IsGoodWord("Channel 1", Out[0], In[0])) goto Error;
if (!IsGoodWord("Channel 2", Out[1], In[1])) goto Error;
if (!IsGoodWord("Channel 3", Out[2], In[2])) goto Error;
}
_cmsFreeInterpParams(p);
return 1;
Error:
_cmsFreeInterpParams(p);
return 0;
}
// Check reverse interpolation on LUTS. This is right now exclusively used by K preservation algorithm
static
cmsInt32Number CheckReverseInterpolation3x3(void)
{
cmsPipeline* Lut;
cmsStage* clut;
cmsFloat32Number Target[3], Result[3], Hint[3];
cmsFloat32Number err, max;
cmsInt32Number i;
cmsUInt16Number Table[] = {
0, 0, 0, // 0 0 0
0, 0, 0xffff, // 0 0 1
0, 0xffff, 0, // 0 1 0
0, 0xffff, 0xffff, // 0 1 1
0xffff, 0, 0, // 1 0 0
0xffff, 0, 0xffff, // 1 0 1
0xffff, 0xffff, 0, // 1 1 0
0xffff, 0xffff, 0xffff, // 1 1 1
};
Lut = cmsPipelineAlloc(DbgThread(), 3, 3);
clut = cmsStageAllocCLut16bit(DbgThread(), 2, 3, 3, Table);
cmsPipelineInsertStage(Lut, cmsAT_BEGIN, clut);
Target[0] = 0; Target[1] = 0; Target[2] = 0;
Hint[0] = 0; Hint[1] = 0; Hint[2] = 0;
cmsPipelineEvalReverseFloat(Target, Result, NULL, Lut);
if (Result[0] != 0 || Result[1] != 0 || Result[2] != 0){
Fail("Reverse interpolation didn't find zero");
return 0;
}
// Transverse identity
max = 0;
for (i=0; i <= 100; i++) {
cmsFloat32Number in = i / 100.0F;
Target[0] = in; Target[1] = 0; Target[2] = 0;
cmsPipelineEvalReverseFloat(Target, Result, Hint, Lut);
err = fabsf(in - Result[0]);
if (err > max) max = err;
memcpy(Hint, Result, sizeof(Hint));
}
cmsPipelineFree(Lut);
return (max <= FLOAT_PRECISSION);
}
static
cmsInt32Number CheckReverseInterpolation4x3(void)
{
cmsPipeline* Lut;
cmsStage* clut;
cmsFloat32Number Target[4], Result[4], Hint[4];
cmsFloat32Number err, max;
cmsInt32Number i;
// 4 -> 3, output gets 3 first channels copied
cmsUInt16Number Table[] = {
0, 0, 0, // 0 0 0 0 = ( 0, 0, 0)
0, 0, 0, // 0 0 0 1 = ( 0, 0, 0)
0, 0, 0xffff, // 0 0 1 0 = ( 0, 0, 1)
0, 0, 0xffff, // 0 0 1 1 = ( 0, 0, 1)
0, 0xffff, 0, // 0 1 0 0 = ( 0, 1, 0)
0, 0xffff, 0, // 0 1 0 1 = ( 0, 1, 0)
0, 0xffff, 0xffff, // 0 1 1 0 = ( 0, 1, 1)
0, 0xffff, 0xffff, // 0 1 1 1 = ( 0, 1, 1)
0xffff, 0, 0, // 1 0 0 0 = ( 1, 0, 0)
0xffff, 0, 0, // 1 0 0 1 = ( 1, 0, 0)
0xffff, 0, 0xffff, // 1 0 1 0 = ( 1, 0, 1)
0xffff, 0, 0xffff, // 1 0 1 1 = ( 1, 0, 1)
0xffff, 0xffff, 0, // 1 1 0 0 = ( 1, 1, 0)
0xffff, 0xffff, 0, // 1 1 0 1 = ( 1, 1, 0)
0xffff, 0xffff, 0xffff, // 1 1 1 0 = ( 1, 1, 1)
0xffff, 0xffff, 0xffff, // 1 1 1 1 = ( 1, 1, 1)
};
Lut = cmsPipelineAlloc(DbgThread(), 4, 3);
clut = cmsStageAllocCLut16bit(DbgThread(), 2, 4, 3, Table);
cmsPipelineInsertStage(Lut, cmsAT_BEGIN, clut);
// Check if the LUT is behaving as expected
SubTest("4->3 feasibility");
for (i=0; i <= 100; i++) {
Target[0] = i / 100.0F;
Target[1] = Target[0];
Target[2] = 0;
Target[3] = 12;
cmsPipelineEvalFloat(Target, Result, Lut);
if (!IsGoodFixed15_16("0", Target[0], Result[0])) return 0;
if (!IsGoodFixed15_16("1", Target[1], Result[1])) return 0;
if (!IsGoodFixed15_16("2", Target[2], Result[2])) return 0;
}
SubTest("4->3 zero");
Target[0] = 0;
Target[1] = 0;
Target[2] = 0;
// This one holds the fixed K
Target[3] = 0;
// This is our hint (which is a big lie in this case)
Hint[0] = 0.1F; Hint[1] = 0.1F; Hint[2] = 0.1F;
cmsPipelineEvalReverseFloat(Target, Result, Hint, Lut);
if (Result[0] != 0 || Result[1] != 0 || Result[2] != 0 || Result[3] != 0){
Fail("Reverse interpolation didn't find zero");
return 0;
}
SubTest("4->3 find CMY");
max = 0;
for (i=0; i <= 100; i++) {
cmsFloat32Number in = i / 100.0F;
Target[0] = in; Target[1] = 0; Target[2] = 0;
cmsPipelineEvalReverseFloat(Target, Result, Hint, Lut);
err = fabsf(in - Result[0]);
if (err > max) max = err;
memcpy(Hint, Result, sizeof(Hint));
}
cmsPipelineFree(Lut);
return (max <= FLOAT_PRECISSION);
}
// Check all interpolation.
static
cmsUInt16Number Fn8D1(cmsUInt16Number a1, cmsUInt16Number a2, cmsUInt16Number a3, cmsUInt16Number a4,
cmsUInt16Number a5, cmsUInt16Number a6, cmsUInt16Number a7, cmsUInt16Number a8,
cmsUInt32Number m)
{
return (cmsUInt16Number) ((a1 + a2 + a3 + a4 + a5 + a6 + a7 + a8) / m);
}
static
cmsUInt16Number Fn8D2(cmsUInt16Number a1, cmsUInt16Number a2, cmsUInt16Number a3, cmsUInt16Number a4,
cmsUInt16Number a5, cmsUInt16Number a6, cmsUInt16Number a7, cmsUInt16Number a8,
cmsUInt32Number m)
{
return (cmsUInt16Number) ((a1 + 3* a2 + 3* a3 + a4 + a5 + a6 + a7 + a8 ) / (m + 4));
}
static
cmsUInt16Number Fn8D3(cmsUInt16Number a1, cmsUInt16Number a2, cmsUInt16Number a3, cmsUInt16Number a4,
cmsUInt16Number a5, cmsUInt16Number a6, cmsUInt16Number a7, cmsUInt16Number a8,
cmsUInt32Number m)
{
return (cmsUInt16Number) ((3*a1 + 2*a2 + 3*a3 + a4 + a5 + a6 + a7 + a8) / (m + 5));
}
static
cmsInt32Number Sampler3D(register const cmsUInt16Number In[],
register cmsUInt16Number Out[],
register void * Cargo)
{
Out[0] = Fn8D1(In[0], In[1], In[2], 0, 0, 0, 0, 0, 3);
Out[1] = Fn8D2(In[0], In[1], In[2], 0, 0, 0, 0, 0, 3);
Out[2] = Fn8D3(In[0], In[1], In[2], 0, 0, 0, 0, 0, 3);
return 1;
cmsUNUSED_PARAMETER(Cargo);
}
static
cmsInt32Number Sampler4D(register const cmsUInt16Number In[],
register cmsUInt16Number Out[],
register void * Cargo)
{
Out[0] = Fn8D1(In[0], In[1], In[2], In[3], 0, 0, 0, 0, 4);
Out[1] = Fn8D2(In[0], In[1], In[2], In[3], 0, 0, 0, 0, 4);
Out[2] = Fn8D3(In[0], In[1], In[2], In[3], 0, 0, 0, 0, 4);
return 1;
cmsUNUSED_PARAMETER(Cargo);
}
static
cmsInt32Number Sampler5D(register const cmsUInt16Number In[],
register cmsUInt16Number Out[],
register void * Cargo)
{
Out[0] = Fn8D1(In[0], In[1], In[2], In[3], In[4], 0, 0, 0, 5);
Out[1] = Fn8D2(In[0], In[1], In[2], In[3], In[4], 0, 0, 0, 5);
Out[2] = Fn8D3(In[0], In[1], In[2], In[3], In[4], 0, 0, 0, 5);
return 1;
cmsUNUSED_PARAMETER(Cargo);
}
static
cmsInt32Number Sampler6D(register const cmsUInt16Number In[],
register cmsUInt16Number Out[],
register void * Cargo)
{
Out[0] = Fn8D1(In[0], In[1], In[2], In[3], In[4], In[5], 0, 0, 6);
Out[1] = Fn8D2(In[0], In[1], In[2], In[3], In[4], In[5], 0, 0, 6);
Out[2] = Fn8D3(In[0], In[1], In[2], In[3], In[4], In[5], 0, 0, 6);
return 1;
cmsUNUSED_PARAMETER(Cargo);
}
static
cmsInt32Number Sampler7D(register const cmsUInt16Number In[],
register cmsUInt16Number Out[],
register void * Cargo)
{
Out[0] = Fn8D1(In[0], In[1], In[2], In[3], In[4], In[5], In[6], 0, 7);
Out[1] = Fn8D2(In[0], In[1], In[2], In[3], In[4], In[5], In[6], 0, 7);
Out[2] = Fn8D3(In[0], In[1], In[2], In[3], In[4], In[5], In[6], 0, 7);
return 1;
cmsUNUSED_PARAMETER(Cargo);
}
static
cmsInt32Number Sampler8D(register const cmsUInt16Number In[],
register cmsUInt16Number Out[],
register void * Cargo)
{
Out[0] = Fn8D1(In[0], In[1], In[2], In[3], In[4], In[5], In[6], In[7], 8);
Out[1] = Fn8D2(In[0], In[1], In[2], In[3], In[4], In[5], In[6], In[7], 8);
Out[2] = Fn8D3(In[0], In[1], In[2], In[3], In[4], In[5], In[6], In[7], 8);
return 1;
cmsUNUSED_PARAMETER(Cargo);
}
static
cmsBool CheckOne3D(cmsPipeline* lut, cmsUInt16Number a1, cmsUInt16Number a2, cmsUInt16Number a3)
{
cmsUInt16Number In[3], Out1[3], Out2[3];
In[0] = a1; In[1] = a2; In[2] = a3;
// This is the interpolated value
cmsPipelineEval16(In, Out1, lut);
// This is the real value
Sampler3D(In, Out2, NULL);
// Let's see the difference
if (!IsGoodWordPrec("Channel 1", Out1[0], Out2[0], 2)) return FALSE;
if (!IsGoodWordPrec("Channel 2", Out1[1], Out2[1], 2)) return FALSE;
if (!IsGoodWordPrec("Channel 3", Out1[2], Out2[2], 2)) return FALSE;
return TRUE;
}
static
cmsBool CheckOne4D(cmsPipeline* lut, cmsUInt16Number a1, cmsUInt16Number a2, cmsUInt16Number a3, cmsUInt16Number a4)
{
cmsUInt16Number In[4], Out1[3], Out2[3];
In[0] = a1; In[1] = a2; In[2] = a3; In[3] = a4;
// This is the interpolated value
cmsPipelineEval16(In, Out1, lut);
// This is the real value
Sampler4D(In, Out2, NULL);
// Let's see the difference
if (!IsGoodWordPrec("Channel 1", Out1[0], Out2[0], 2)) return FALSE;
if (!IsGoodWordPrec("Channel 2", Out1[1], Out2[1], 2)) return FALSE;
if (!IsGoodWordPrec("Channel 3", Out1[2], Out2[2], 2)) return FALSE;
return TRUE;
}
static
cmsBool CheckOne5D(cmsPipeline* lut, cmsUInt16Number a1, cmsUInt16Number a2,
cmsUInt16Number a3, cmsUInt16Number a4, cmsUInt16Number a5)
{
cmsUInt16Number In[5], Out1[3], Out2[3];
In[0] = a1; In[1] = a2; In[2] = a3; In[3] = a4; In[4] = a5;
// This is the interpolated value
cmsPipelineEval16(In, Out1, lut);
// This is the real value
Sampler5D(In, Out2, NULL);
// Let's see the difference
if (!IsGoodWordPrec("Channel 1", Out1[0], Out2[0], 2)) return FALSE;
if (!IsGoodWordPrec("Channel 2", Out1[1], Out2[1], 2)) return FALSE;
if (!IsGoodWordPrec("Channel 3", Out1[2], Out2[2], 2)) return FALSE;
return TRUE;
}
static
cmsBool CheckOne6D(cmsPipeline* lut, cmsUInt16Number a1, cmsUInt16Number a2,
cmsUInt16Number a3, cmsUInt16Number a4,
cmsUInt16Number a5, cmsUInt16Number a6)
{
cmsUInt16Number In[6], Out1[3], Out2[3];
In[0] = a1; In[1] = a2; In[2] = a3; In[3] = a4; In[4] = a5; In[5] = a6;
// This is the interpolated value
cmsPipelineEval16(In, Out1, lut);
// This is the real value
Sampler6D(In, Out2, NULL);
// Let's see the difference
if (!IsGoodWordPrec("Channel 1", Out1[0], Out2[0], 2)) return FALSE;
if (!IsGoodWordPrec("Channel 2", Out1[1], Out2[1], 2)) return FALSE;
if (!IsGoodWordPrec("Channel 3", Out1[2], Out2[2], 2)) return FALSE;
return TRUE;
}
static
cmsBool CheckOne7D(cmsPipeline* lut, cmsUInt16Number a1, cmsUInt16Number a2,
cmsUInt16Number a3, cmsUInt16Number a4,
cmsUInt16Number a5, cmsUInt16Number a6,
cmsUInt16Number a7)
{
cmsUInt16Number In[7], Out1[3], Out2[3];
In[0] = a1; In[1] = a2; In[2] = a3; In[3] = a4; In[4] = a5; In[5] = a6; In[6] = a7;
// This is the interpolated value
cmsPipelineEval16(In, Out1, lut);
// This is the real value
Sampler7D(In, Out2, NULL);
// Let's see the difference
if (!IsGoodWordPrec("Channel 1", Out1[0], Out2[0], 2)) return FALSE;
if (!IsGoodWordPrec("Channel 2", Out1[1], Out2[1], 2)) return FALSE;
if (!IsGoodWordPrec("Channel 3", Out1[2], Out2[2], 2)) return FALSE;
return TRUE;
}
static
cmsBool CheckOne8D(cmsPipeline* lut, cmsUInt16Number a1, cmsUInt16Number a2,
cmsUInt16Number a3, cmsUInt16Number a4,
cmsUInt16Number a5, cmsUInt16Number a6,
cmsUInt16Number a7, cmsUInt16Number a8)
{
cmsUInt16Number In[8], Out1[3], Out2[3];
In[0] = a1; In[1] = a2; In[2] = a3; In[3] = a4; In[4] = a5; In[5] = a6; In[6] = a7; In[7] = a8;
// This is the interpolated value
cmsPipelineEval16(In, Out1, lut);
// This is the real value
Sampler8D(In, Out2, NULL);
// Let's see the difference
if (!IsGoodWordPrec("Channel 1", Out1[0], Out2[0], 2)) return FALSE;
if (!IsGoodWordPrec("Channel 2", Out1[1], Out2[1], 2)) return FALSE;
if (!IsGoodWordPrec("Channel 3", Out1[2], Out2[2], 2)) return FALSE;
return TRUE;
}
static
cmsInt32Number Check3Dinterp(void)
{
cmsPipeline* lut;
cmsStage* mpe;
lut = cmsPipelineAlloc(DbgThread(), 3, 3);
mpe = cmsStageAllocCLut16bit(DbgThread(), 9, 3, 3, NULL);
cmsStageSampleCLut16bit(mpe, Sampler3D, NULL, 0);
cmsPipelineInsertStage(lut, cmsAT_BEGIN, mpe);
// Check accuracy
if (!CheckOne3D(lut, 0, 0, 0)) return 0;
if (!CheckOne3D(lut, 0xffff, 0xffff, 0xffff)) return 0;
if (!CheckOne3D(lut, 0x8080, 0x8080, 0x8080)) return 0;
if (!CheckOne3D(lut, 0x0000, 0xFE00, 0x80FF)) return 0;
if (!CheckOne3D(lut, 0x1111, 0x2222, 0x3333)) return 0;
if (!CheckOne3D(lut, 0x0000, 0x0012, 0x0013)) return 0;
if (!CheckOne3D(lut, 0x3141, 0x1415, 0x1592)) return 0;
if (!CheckOne3D(lut, 0xFF00, 0xFF01, 0xFF12)) return 0;
cmsPipelineFree(lut);
return 1;
}
static
cmsInt32Number Check3DinterpGranular(void)
{
cmsPipeline* lut;
cmsStage* mpe;
cmsUInt32Number Dimensions[] = { 7, 8, 9 };
lut = cmsPipelineAlloc(DbgThread(), 3, 3);
mpe = cmsStageAllocCLut16bitGranular(DbgThread(), Dimensions, 3, 3, NULL);
cmsStageSampleCLut16bit(mpe, Sampler3D, NULL, 0);
cmsPipelineInsertStage(lut, cmsAT_BEGIN, mpe);
// Check accuracy
if (!CheckOne3D(lut, 0, 0, 0)) return 0;
if (!CheckOne3D(lut, 0xffff, 0xffff, 0xffff)) return 0;
if (!CheckOne3D(lut, 0x8080, 0x8080, 0x8080)) return 0;
if (!CheckOne3D(lut, 0x0000, 0xFE00, 0x80FF)) return 0;
if (!CheckOne3D(lut, 0x1111, 0x2222, 0x3333)) return 0;
if (!CheckOne3D(lut, 0x0000, 0x0012, 0x0013)) return 0;
if (!CheckOne3D(lut, 0x3141, 0x1415, 0x1592)) return 0;
if (!CheckOne3D(lut, 0xFF00, 0xFF01, 0xFF12)) return 0;
cmsPipelineFree(lut);
return 1;
}
static
cmsInt32Number Check4Dinterp(void)
{
cmsPipeline* lut;
cmsStage* mpe;
lut = cmsPipelineAlloc(DbgThread(), 4, 3);
mpe = cmsStageAllocCLut16bit(DbgThread(), 9, 4, 3, NULL);
cmsStageSampleCLut16bit(mpe, Sampler4D, NULL, 0);
cmsPipelineInsertStage(lut, cmsAT_BEGIN, mpe);
// Check accuracy
if (!CheckOne4D(lut, 0, 0, 0, 0)) return 0;
if (!CheckOne4D(lut, 0xffff, 0xffff, 0xffff, 0xffff)) return 0;
if (!CheckOne4D(lut, 0x8080, 0x8080, 0x8080, 0x8080)) return 0;
if (!CheckOne4D(lut, 0x0000, 0xFE00, 0x80FF, 0x8888)) return 0;
if (!CheckOne4D(lut, 0x1111, 0x2222, 0x3333, 0x4444)) return 0;
if (!CheckOne4D(lut, 0x0000, 0x0012, 0x0013, 0x0014)) return 0;
if (!CheckOne4D(lut, 0x3141, 0x1415, 0x1592, 0x9261)) return 0;
if (!CheckOne4D(lut, 0xFF00, 0xFF01, 0xFF12, 0xFF13)) return 0;
cmsPipelineFree(lut);
return 1;
}
static
cmsInt32Number Check4DinterpGranular(void)
{
cmsPipeline* lut;
cmsStage* mpe;
cmsUInt32Number Dimensions[] = { 9, 8, 7, 6 };
lut = cmsPipelineAlloc(DbgThread(), 4, 3);
mpe = cmsStageAllocCLut16bitGranular(DbgThread(), Dimensions, 4, 3, NULL);
cmsStageSampleCLut16bit(mpe, Sampler4D, NULL, 0);
cmsPipelineInsertStage(lut, cmsAT_BEGIN, mpe);
// Check accuracy
if (!CheckOne4D(lut, 0, 0, 0, 0)) return 0;
if (!CheckOne4D(lut, 0xffff, 0xffff, 0xffff, 0xffff)) return 0;
if (!CheckOne4D(lut, 0x8080, 0x8080, 0x8080, 0x8080)) return 0;
if (!CheckOne4D(lut, 0x0000, 0xFE00, 0x80FF, 0x8888)) return 0;
if (!CheckOne4D(lut, 0x1111, 0x2222, 0x3333, 0x4444)) return 0;
if (!CheckOne4D(lut, 0x0000, 0x0012, 0x0013, 0x0014)) return 0;
if (!CheckOne4D(lut, 0x3141, 0x1415, 0x1592, 0x9261)) return 0;
if (!CheckOne4D(lut, 0xFF00, 0xFF01, 0xFF12, 0xFF13)) return 0;
cmsPipelineFree(lut);
return 1;
}
static
cmsInt32Number Check5DinterpGranular(void)
{
cmsPipeline* lut;
cmsStage* mpe;
cmsUInt32Number Dimensions[] = { 3, 2, 2, 2, 2 };
lut = cmsPipelineAlloc(DbgThread(), 5, 3);
mpe = cmsStageAllocCLut16bitGranular(DbgThread(), Dimensions, 5, 3, NULL);
cmsStageSampleCLut16bit(mpe, Sampler5D, NULL, 0);
cmsPipelineInsertStage(lut, cmsAT_BEGIN, mpe);
// Check accuracy
if (!CheckOne5D(lut, 0, 0, 0, 0, 0)) return 0;
if (!CheckOne5D(lut, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff)) return 0;
if (!CheckOne5D(lut, 0x8080, 0x8080, 0x8080, 0x8080, 0x1234)) return 0;
if (!CheckOne5D(lut, 0x0000, 0xFE00, 0x80FF, 0x8888, 0x8078)) return 0;
if (!CheckOne5D(lut, 0x1111, 0x2222, 0x3333, 0x4444, 0x1455)) return 0;
if (!CheckOne5D(lut, 0x0000, 0x0012, 0x0013, 0x0014, 0x2333)) return 0;
if (!CheckOne5D(lut, 0x3141, 0x1415, 0x1592, 0x9261, 0x4567)) return 0;
if (!CheckOne5D(lut, 0xFF00, 0xFF01, 0xFF12, 0xFF13, 0xF344)) return 0;
cmsPipelineFree(lut);
return 1;
}
static
cmsInt32Number Check6DinterpGranular(void)
{
cmsPipeline* lut;
cmsStage* mpe;
cmsUInt32Number Dimensions[] = { 4, 3, 3, 2, 2, 2 };
lut = cmsPipelineAlloc(DbgThread(), 6, 3);
mpe = cmsStageAllocCLut16bitGranular(DbgThread(), Dimensions, 6, 3, NULL);
cmsStageSampleCLut16bit(mpe, Sampler6D, NULL, 0);
cmsPipelineInsertStage(lut, cmsAT_BEGIN, mpe);
// Check accuracy
if (!CheckOne6D(lut, 0, 0, 0, 0, 0, 0)) return 0;
if (!CheckOne6D(lut, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff)) return 0;
if (!CheckOne6D(lut, 0x8080, 0x8080, 0x8080, 0x8080, 0x1234, 0x1122)) return 0;
if (!CheckOne6D(lut, 0x0000, 0xFE00, 0x80FF, 0x8888, 0x8078, 0x2233)) return 0;
if (!CheckOne6D(lut, 0x1111, 0x2222, 0x3333, 0x4444, 0x1455, 0x3344)) return 0;
if (!CheckOne6D(lut, 0x0000, 0x0012, 0x0013, 0x0014, 0x2333, 0x4455)) return 0;
if (!CheckOne6D(lut, 0x3141, 0x1415, 0x1592, 0x9261, 0x4567, 0x5566)) return 0;
if (!CheckOne6D(lut, 0xFF00, 0xFF01, 0xFF12, 0xFF13, 0xF344, 0x6677)) return 0;
cmsPipelineFree(lut);
return 1;
}
static
cmsInt32Number Check7DinterpGranular(void)
{
cmsPipeline* lut;
cmsStage* mpe;
cmsUInt32Number Dimensions[] = { 4, 3, 3, 2, 2, 2, 2 };
lut = cmsPipelineAlloc(DbgThread(), 7, 3);
mpe = cmsStageAllocCLut16bitGranular(DbgThread(), Dimensions, 7, 3, NULL);
cmsStageSampleCLut16bit(mpe, Sampler7D, NULL, 0);
cmsPipelineInsertStage(lut, cmsAT_BEGIN, mpe);
// Check accuracy
if (!CheckOne7D(lut, 0, 0, 0, 0, 0, 0, 0)) return 0;
if (!CheckOne7D(lut, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff)) return 0;
if (!CheckOne7D(lut, 0x8080, 0x8080, 0x8080, 0x8080, 0x1234, 0x1122, 0x0056)) return 0;
if (!CheckOne7D(lut, 0x0000, 0xFE00, 0x80FF, 0x8888, 0x8078, 0x2233, 0x0088)) return 0;
if (!CheckOne7D(lut, 0x1111, 0x2222, 0x3333, 0x4444, 0x1455, 0x3344, 0x1987)) return 0;
if (!CheckOne7D(lut, 0x0000, 0x0012, 0x0013, 0x0014, 0x2333, 0x4455, 0x9988)) return 0;
if (!CheckOne7D(lut, 0x3141, 0x1415, 0x1592, 0x9261, 0x4567, 0x5566, 0xfe56)) return 0;
if (!CheckOne7D(lut, 0xFF00, 0xFF01, 0xFF12, 0xFF13, 0xF344, 0x6677, 0xbabe)) return 0;
cmsPipelineFree(lut);
return 1;
}
static
cmsInt32Number Check8DinterpGranular(void)
{
cmsPipeline* lut;
cmsStage* mpe;
cmsUInt32Number Dimensions[] = { 4, 3, 3, 2, 2, 2, 2, 2 };
lut = cmsPipelineAlloc(DbgThread(), 8, 3);
mpe = cmsStageAllocCLut16bitGranular(DbgThread(), Dimensions, 8, 3, NULL);
cmsStageSampleCLut16bit(mpe, Sampler8D, NULL, 0);
cmsPipelineInsertStage(lut, cmsAT_BEGIN, mpe);
// Check accuracy
if (!CheckOne8D(lut, 0, 0, 0, 0, 0, 0, 0, 0)) return 0;
if (!CheckOne8D(lut, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff)) return 0;
if (!CheckOne8D(lut, 0x8080, 0x8080, 0x8080, 0x8080, 0x1234, 0x1122, 0x0056, 0x0011)) return 0;
if (!CheckOne8D(lut, 0x0000, 0xFE00, 0x80FF, 0x8888, 0x8078, 0x2233, 0x0088, 0x2020)) return 0;
if (!CheckOne8D(lut, 0x1111, 0x2222, 0x3333, 0x4444, 0x1455, 0x3344, 0x1987, 0x4532)) return 0;
if (!CheckOne8D(lut, 0x0000, 0x0012, 0x0013, 0x0014, 0x2333, 0x4455, 0x9988, 0x1200)) return 0;
if (!CheckOne8D(lut, 0x3141, 0x1415, 0x1592, 0x9261, 0x4567, 0x5566, 0xfe56, 0x6666)) return 0;
if (!CheckOne8D(lut, 0xFF00, 0xFF01, 0xFF12, 0xFF13, 0xF344, 0x6677, 0xbabe, 0xface)) return 0;
cmsPipelineFree(lut);
return 1;
}
// Colorimetric conversions -------------------------------------------------------------------------------------------------
// Lab to LCh and back should be performed at 1E-12 accuracy at least
static
cmsInt32Number CheckLab2LCh(void)
{
cmsInt32Number l, a, b;
cmsFloat64Number dist, Max = 0;
cmsCIELab Lab, Lab2;
cmsCIELCh LCh;
for (l=0; l <= 100; l += 10) {
for (a=-128; a <= +128; a += 8) {
for (b=-128; b <= 128; b += 8) {
Lab.L = l;
Lab.a = a;
Lab.b = b;
cmsLab2LCh(&LCh, &Lab);
cmsLCh2Lab(&Lab2, &LCh);
dist = cmsDeltaE(&Lab, &Lab2);
if (dist > Max) Max = dist;
}
}
}
return Max < 1E-12;
}
// Lab to LCh and back should be performed at 1E-12 accuracy at least
static
cmsInt32Number CheckLab2XYZ(void)
{
cmsInt32Number l, a, b;
cmsFloat64Number dist, Max = 0;
cmsCIELab Lab, Lab2;
cmsCIEXYZ XYZ;
for (l=0; l <= 100; l += 10) {
for (a=-128; a <= +128; a += 8) {
for (b=-128; b <= 128; b += 8) {
Lab.L = l;
Lab.a = a;
Lab.b = b;
cmsLab2XYZ(NULL, &XYZ, &Lab);
cmsXYZ2Lab(NULL, &Lab2, &XYZ);
dist = cmsDeltaE(&Lab, &Lab2);
if (dist > Max) Max = dist;
}
}
}
return Max < 1E-12;
}
// Lab to xyY and back should be performed at 1E-12 accuracy at least
static
cmsInt32Number CheckLab2xyY(void)
{
cmsInt32Number l, a, b;
cmsFloat64Number dist, Max = 0;
cmsCIELab Lab, Lab2;
cmsCIEXYZ XYZ;
cmsCIExyY xyY;
for (l=0; l <= 100; l += 10) {
for (a=-128; a <= +128; a += 8) {
for (b=-128; b <= 128; b += 8) {
Lab.L = l;
Lab.a = a;
Lab.b = b;
cmsLab2XYZ(NULL, &XYZ, &Lab);
cmsXYZ2xyY(&xyY, &XYZ);
cmsxyY2XYZ(&XYZ, &xyY);
cmsXYZ2Lab(NULL, &Lab2, &XYZ);
dist = cmsDeltaE(&Lab, &Lab2);
if (dist > Max) Max = dist;
}
}
}
return Max < 1E-12;
}
static
cmsInt32Number CheckLabV2encoding(void)
{
cmsInt32Number n2, i, j;
cmsUInt16Number Inw[3], aw[3];
cmsCIELab Lab;
n2=0;
for (j=0; j < 65535; j++) {
Inw[0] = Inw[1] = Inw[2] = (cmsUInt16Number) j;
cmsLabEncoded2FloatV2(&Lab, Inw);
cmsFloat2LabEncodedV2(aw, &Lab);
for (i=0; i < 3; i++) {
if (aw[i] != j) {
n2++;
}
}
}
return (n2 == 0);
}
static
cmsInt32Number CheckLabV4encoding(void)
{
cmsInt32Number n2, i, j;
cmsUInt16Number Inw[3], aw[3];
cmsCIELab Lab;
n2=0;
for (j=0; j < 65535; j++) {
Inw[0] = Inw[1] = Inw[2] = (cmsUInt16Number) j;
cmsLabEncoded2Float(&Lab, Inw);
cmsFloat2LabEncoded(aw, &Lab);
for (i=0; i < 3; i++) {
if (aw[i] != j) {
n2++;
}
}
}
return (n2 == 0);
}
// BlackBody -----------------------------------------------------------------------------------------------------
static
cmsInt32Number CheckTemp2CHRM(void)
{
cmsInt32Number j;
cmsFloat64Number d, v, Max = 0;
cmsCIExyY White;
for (j=4000; j < 25000; j++) {
cmsWhitePointFromTemp(&White, j);
if (!cmsTempFromWhitePoint(&v, &White)) return 0;
d = fabs(v - j);
if (d > Max) Max = d;
}
// 100 degree is the actual resolution
return (Max < 100);
}
// Tone curves -----------------------------------------------------------------------------------------------------
static
cmsInt32Number CheckGammaEstimation(cmsToneCurve* c, cmsFloat64Number g)
{
cmsFloat64Number est = cmsEstimateGamma(c, 0.001);
SubTest("Gamma estimation");
if (fabs(est - g) > 0.001) return 0;
return 1;
}
static
cmsInt32Number CheckGammaCreation16(void)
{
cmsToneCurve* LinGamma = cmsBuildGamma(DbgThread(), 1.0);
cmsInt32Number i;
cmsUInt16Number in, out;
for (i=0; i < 0xffff; i++) {
in = (cmsUInt16Number) i;
out = cmsEvalToneCurve16(LinGamma, in);
if (in != out) {
Fail("(lin gamma): Must be %x, But is %x : ", in, out);
cmsFreeToneCurve(LinGamma);
return 0;
}
}
if (!CheckGammaEstimation(LinGamma, 1.0)) return 0;
cmsFreeToneCurve(LinGamma);
return 1;
}
static
cmsInt32Number CheckGammaCreationFlt(void)
{
cmsToneCurve* LinGamma = cmsBuildGamma(DbgThread(), 1.0);
cmsInt32Number i;
cmsFloat32Number in, out;
for (i=0; i < 0xffff; i++) {
in = (cmsFloat32Number) (i / 65535.0);
out = cmsEvalToneCurveFloat(LinGamma, in);
if (fabs(in - out) > (1/65535.0)) {
Fail("(lin gamma): Must be %f, But is %f : ", in, out);
cmsFreeToneCurve(LinGamma);
return 0;
}
}
if (!CheckGammaEstimation(LinGamma, 1.0)) return 0;
cmsFreeToneCurve(LinGamma);
return 1;
}
// Curve curves using a single power function
// Error is given in 0..ffff counts
static
cmsInt32Number CheckGammaFloat(cmsFloat64Number g)
{
cmsToneCurve* Curve = cmsBuildGamma(DbgThread(), g);
cmsInt32Number i;
cmsFloat32Number in, out;
cmsFloat64Number val, Err;
MaxErr = 0.0;
for (i=0; i < 0xffff; i++) {
in = (cmsFloat32Number) (i / 65535.0);
out = cmsEvalToneCurveFloat(Curve, in);
val = pow((cmsFloat64Number) in, g);
Err = fabs( val - out);
if (Err > MaxErr) MaxErr = Err;
}
if (MaxErr > 0) printf("|Err|<%lf ", MaxErr * 65535.0);
if (!CheckGammaEstimation(Curve, g)) return 0;
cmsFreeToneCurve(Curve);
return 1;
}
static cmsInt32Number CheckGamma18(void)
{
return CheckGammaFloat(1.8);
}
static cmsInt32Number CheckGamma22(void)
{
return CheckGammaFloat(2.2);
}
static cmsInt32Number CheckGamma30(void)
{
return CheckGammaFloat(3.0);
}
// Check table-based gamma functions
static
cmsInt32Number CheckGammaFloatTable(cmsFloat64Number g)
{
cmsFloat32Number Values[1025];
cmsToneCurve* Curve;
cmsInt32Number i;
cmsFloat32Number in, out;
cmsFloat64Number val, Err;
for (i=0; i <= 1024; i++) {
in = (cmsFloat32Number) (i / 1024.0);
Values[i] = powf(in, (float) g);
}
Curve = cmsBuildTabulatedToneCurveFloat(DbgThread(), 1025, Values);
MaxErr = 0.0;
for (i=0; i <= 0xffff; i++) {
in = (cmsFloat32Number) (i / 65535.0);
out = cmsEvalToneCurveFloat(Curve, in);
val = pow(in, g);
Err = fabs(val - out);
if (Err > MaxErr) MaxErr = Err;
}
if (MaxErr > 0) printf("|Err|<%lf ", MaxErr * 65535.0);
if (!CheckGammaEstimation(Curve, g)) return 0;
cmsFreeToneCurve(Curve);
return 1;
}
static cmsInt32Number CheckGamma18Table(void)
{
return CheckGammaFloatTable(1.8);
}
static cmsInt32Number CheckGamma22Table(void)
{
return CheckGammaFloatTable(2.2);
}
static cmsInt32Number CheckGamma30Table(void)
{
return CheckGammaFloatTable(3.0);
}
// Create a curve from a table (which is a pure gamma function) and check it against the pow function.
static
cmsInt32Number CheckGammaWordTable(cmsFloat64Number g)
{
cmsUInt16Number Values[1025];
cmsToneCurve* Curve;
cmsInt32Number i;
cmsFloat32Number in, out;
cmsFloat64Number val, Err;
for (i=0; i <= 1024; i++) {
in = (cmsFloat32Number) (i / 1024.0);
Values[i] = (cmsUInt16Number) floor(pow(in, g) * 65535.0 + 0.5);
}
Curve = cmsBuildTabulatedToneCurve16(DbgThread(), 1025, Values);
MaxErr = 0.0;
for (i=0; i <= 0xffff; i++) {
in = (cmsFloat32Number) (i / 65535.0);
out = cmsEvalToneCurveFloat(Curve, in);
val = pow(in, g);
Err = fabs(val - out);
if (Err > MaxErr) MaxErr = Err;
}
if (MaxErr > 0) printf("|Err|<%lf ", MaxErr * 65535.0);
if (!CheckGammaEstimation(Curve, g)) return 0;
cmsFreeToneCurve(Curve);
return 1;
}
static cmsInt32Number CheckGamma18TableWord(void)
{
return CheckGammaWordTable(1.8);
}
static cmsInt32Number CheckGamma22TableWord(void)
{
return CheckGammaWordTable(2.2);
}
static cmsInt32Number CheckGamma30TableWord(void)
{
return CheckGammaWordTable(3.0);
}
// Curve joining test. Joining two high-gamma of 3.0 curves should
// give something like linear
static
cmsInt32Number CheckJointCurves(void)
{
cmsToneCurve *Forward, *Reverse, *Result;
cmsBool rc;
Forward = cmsBuildGamma(DbgThread(), 3.0);
Reverse = cmsBuildGamma(DbgThread(), 3.0);
Result = cmsJoinToneCurve(DbgThread(), Forward, Reverse, 256);
cmsFreeToneCurve(Forward); cmsFreeToneCurve(Reverse);
rc = cmsIsToneCurveLinear(Result);
cmsFreeToneCurve(Result);
if (!rc)
Fail("Joining same curve twice does not result in a linear ramp");
return rc;
}
// Create a gamma curve by cheating the table
static
cmsToneCurve* GammaTableLinear(cmsInt32Number nEntries, cmsBool Dir)
{
cmsInt32Number i;
cmsToneCurve* g = cmsBuildTabulatedToneCurve16(DbgThread(), nEntries, NULL);
for (i=0; i < nEntries; i++) {
cmsInt32Number v = _cmsQuantizeVal(i, nEntries);
if (Dir)
g->Table16[i] = (cmsUInt16Number) v;
else
g->Table16[i] = (cmsUInt16Number) (0xFFFF - v);
}
return g;
}
static
cmsInt32Number CheckJointCurvesDescending(void)
{
cmsToneCurve *Forward, *Reverse, *Result;
cmsInt32Number i, rc;
Forward = cmsBuildGamma(DbgThread(), 2.2);
// Fake the curve to be table-based
for (i=0; i < 4096; i++)
Forward ->Table16[i] = 0xffff - Forward->Table16[i];
Forward ->Segments[0].Type = 0;
Reverse = cmsReverseToneCurve(Forward);
Result = cmsJoinToneCurve(DbgThread(), Reverse, Reverse, 256);
cmsFreeToneCurve(Forward);
cmsFreeToneCurve(Reverse);
rc = cmsIsToneCurveLinear(Result);
cmsFreeToneCurve(Result);
return rc;
}
static
cmsInt32Number CheckFToneCurvePoint(cmsToneCurve* c, cmsUInt16Number Point, cmsInt32Number Value)
{
cmsInt32Number Result;
Result = cmsEvalToneCurve16(c, Point);
return (abs(Value - Result) < 2);
}
static
cmsInt32Number CheckReverseDegenerated(void)
{
cmsToneCurve* p, *g;
cmsUInt16Number Tab[16];
Tab[0] = 0;
Tab[1] = 0;
Tab[2] = 0;
Tab[3] = 0;
Tab[4] = 0;
Tab[5] = 0x5555;
Tab[6] = 0x6666;
Tab[7] = 0x7777;
Tab[8] = 0x8888;
Tab[9] = 0x9999;
Tab[10]= 0xffff;
Tab[11]= 0xffff;
Tab[12]= 0xffff;
Tab[13]= 0xffff;
Tab[14]= 0xffff;
Tab[15]= 0xffff;
p = cmsBuildTabulatedToneCurve16(DbgThread(), 16, Tab);
g = cmsReverseToneCurve(p);
// Now let's check some points
if (!CheckFToneCurvePoint(g, 0x5555, 0x5555)) return 0;
if (!CheckFToneCurvePoint(g, 0x7777, 0x7777)) return 0;
// First point for zero
if (!CheckFToneCurvePoint(g, 0x0000, 0x4444)) return 0;
// Last point
if (!CheckFToneCurvePoint(g, 0xFFFF, 0xFFFF)) return 0;
cmsFreeToneCurve(p);
cmsFreeToneCurve(g);
return 1;
}
// Build a parametric sRGB-like curve
static
cmsToneCurve* Build_sRGBGamma(void)
{
cmsFloat64Number Parameters[5];
Parameters[0] = 2.4;
Parameters[1] = 1. / 1.055;
Parameters[2] = 0.055 / 1.055;
Parameters[3] = 1. / 12.92;
Parameters[4] = 0.04045; // d
return cmsBuildParametricToneCurve(DbgThread(), 4, Parameters);
}
// Join two gamma tables in floting point format. Result should be a straight line
static
cmsToneCurve* CombineGammaFloat(cmsToneCurve* g1, cmsToneCurve* g2)
{
cmsUInt16Number Tab[256];
cmsFloat32Number f;
cmsInt32Number i;
for (i=0; i < 256; i++) {
f = (cmsFloat32Number) i / 255.0F;
f = cmsEvalToneCurveFloat(g2, cmsEvalToneCurveFloat(g1, f));
Tab[i] = (cmsUInt16Number) floor(f * 65535.0 + 0.5);
}
return cmsBuildTabulatedToneCurve16(DbgThread(), 256, Tab);
}
// Same of anterior, but using quantized tables
static
cmsToneCurve* CombineGamma16(cmsToneCurve* g1, cmsToneCurve* g2)
{
cmsUInt16Number Tab[256];
cmsInt32Number i;
for (i=0; i < 256; i++) {
cmsUInt16Number wValIn;
wValIn = _cmsQuantizeVal(i, 256);
Tab[i] = cmsEvalToneCurve16(g2, cmsEvalToneCurve16(g1, wValIn));
}
return cmsBuildTabulatedToneCurve16(DbgThread(), 256, Tab);
}
static
cmsInt32Number CheckJointFloatCurves_sRGB(void)
{
cmsToneCurve *Forward, *Reverse, *Result;
cmsBool rc;
Forward = Build_sRGBGamma();
Reverse = cmsReverseToneCurve(Forward);
Result = CombineGammaFloat(Forward, Reverse);
cmsFreeToneCurve(Forward); cmsFreeToneCurve(Reverse);
rc = cmsIsToneCurveLinear(Result);
cmsFreeToneCurve(Result);
return rc;
}
static
cmsInt32Number CheckJoint16Curves_sRGB(void)
{
cmsToneCurve *Forward, *Reverse, *Result;
cmsBool rc;
Forward = Build_sRGBGamma();
Reverse = cmsReverseToneCurve(Forward);
Result = CombineGamma16(Forward, Reverse);
cmsFreeToneCurve(Forward); cmsFreeToneCurve(Reverse);
rc = cmsIsToneCurveLinear(Result);
cmsFreeToneCurve(Result);
return rc;
}
// sigmoidal curve f(x) = (1-x^g) ^(1/g)
static
cmsInt32Number CheckJointCurvesSShaped(void)
{
cmsFloat64Number p = 3.2;
cmsToneCurve *Forward, *Reverse, *Result;
cmsInt32Number rc;
Forward = cmsBuildParametricToneCurve(DbgThread(), 108, &p);
Reverse = cmsReverseToneCurve(Forward);
Result = cmsJoinToneCurve(DbgThread(), Forward, Forward, 4096);
cmsFreeToneCurve(Forward);
cmsFreeToneCurve(Reverse);
rc = cmsIsToneCurveLinear(Result);
cmsFreeToneCurve(Result);
return rc;
}
// --------------------------------------------------------------------------------------------------------
// Implementation of some tone curve functions
static
cmsFloat32Number Gamma(cmsFloat32Number x, const cmsFloat64Number Params[])
{
return (cmsFloat32Number) pow(x, Params[0]);
}
static
cmsFloat32Number CIE122(cmsFloat32Number x, const cmsFloat64Number Params[])
{
cmsFloat64Number e, Val;
if (x >= -Params[2] / Params[1]) {
e = Params[1]*x + Params[2];
if (e > 0)
Val = pow(e, Params[0]);
else
Val = 0;
}
else
Val = 0;
return (cmsFloat32Number) Val;
}
static
cmsFloat32Number IEC61966_3(cmsFloat32Number x, const cmsFloat64Number Params[])
{
cmsFloat64Number e, Val;
if (x >= -Params[2] / Params[1]) {
e = Params[1]*x + Params[2];
if (e > 0)
Val = pow(e, Params[0]) + Params[3];
else
Val = 0;
}
else
Val = Params[3];
return (cmsFloat32Number) Val;
}
static
cmsFloat32Number IEC61966_21(cmsFloat32Number x, const cmsFloat64Number Params[])
{
cmsFloat64Number e, Val;
if (x >= Params[4]) {
e = Params[1]*x + Params[2];
if (e > 0)
Val = pow(e, Params[0]);
else
Val = 0;
}
else
Val = x * Params[3];
return (cmsFloat32Number) Val;
}
static
cmsFloat32Number param_5(cmsFloat32Number x, const cmsFloat64Number Params[])
{
cmsFloat64Number e, Val;
// Y = (aX + b)^Gamma + e | X >= d
// Y = cX + f | else
if (x >= Params[4]) {
e = Params[1]*x + Params[2];
if (e > 0)
Val = pow(e, Params[0]) + Params[5];
else
Val = 0;
}
else
Val = x*Params[3] + Params[6];
return (cmsFloat32Number) Val;
}
static
cmsFloat32Number param_6(cmsFloat32Number x, const cmsFloat64Number Params[])
{
cmsFloat64Number e, Val;
e = Params[1]*x + Params[2];
if (e > 0)
Val = pow(e, Params[0]) + Params[3];
else
Val = 0;
return (cmsFloat32Number) Val;
}
static
cmsFloat32Number param_7(cmsFloat32Number x, const cmsFloat64Number Params[])
{
cmsFloat64Number Val;
Val = Params[1]*log10(Params[2] * pow(x, Params[0]) + Params[3]) + Params[4];
return (cmsFloat32Number) Val;
}
static
cmsFloat32Number param_8(cmsFloat32Number x, const cmsFloat64Number Params[])
{
cmsFloat64Number Val;
Val = (Params[0] * pow(Params[1], Params[2] * x + Params[3]) + Params[4]);
return (cmsFloat32Number) Val;
}
static
cmsFloat32Number sigmoidal(cmsFloat32Number x, const cmsFloat64Number Params[])
{
cmsFloat64Number Val;
Val = pow(1.0 - pow(1 - x, 1/Params[0]), 1/Params[0]);
return (cmsFloat32Number) Val;
}
static
cmsBool CheckSingleParametric(const char* Name, dblfnptr fn, cmsInt32Number Type, const cmsFloat64Number Params[])
{
cmsInt32Number i;
cmsToneCurve* tc;
cmsToneCurve* tc_1;
char InverseText[256];
tc = cmsBuildParametricToneCurve(DbgThread(), Type, Params);
tc_1 = cmsBuildParametricToneCurve(DbgThread(), -Type, Params);
for (i=0; i <= 1000; i++) {
cmsFloat32Number x = (cmsFloat32Number) i / 1000;
cmsFloat32Number y_fn, y_param, x_param, y_param2;
y_fn = fn(x, Params);
y_param = cmsEvalToneCurveFloat(tc, x);
x_param = cmsEvalToneCurveFloat(tc_1, y_param);
y_param2 = fn(x_param, Params);
if (!IsGoodVal(Name, y_fn, y_param, FIXED_PRECISION_15_16))
goto Error;
sprintf(InverseText, "Inverse %s", Name);
if (!IsGoodVal(InverseText, y_fn, y_param2, FIXED_PRECISION_15_16))
goto Error;
}
cmsFreeToneCurve(tc);
cmsFreeToneCurve(tc_1);
return TRUE;
Error:
cmsFreeToneCurve(tc);
cmsFreeToneCurve(tc_1);
return FALSE;
}
// Check against some known values
static
cmsInt32Number CheckParametricToneCurves(void)
{
cmsFloat64Number Params[10];
// 1) X = Y ^ Gamma
Params[0] = 2.2;
if (!CheckSingleParametric("Gamma", Gamma, 1, Params)) return 0;
// 2) CIE 122-1966
// Y = (aX + b)^Gamma | X >= -b/a
// Y = 0 | else
Params[0] = 2.2;
Params[1] = 1.5;
Params[2] = -0.5;
if (!CheckSingleParametric("CIE122-1966", CIE122, 2, Params)) return 0;
// 3) IEC 61966-3
// Y = (aX + b)^Gamma | X <= -b/a
// Y = c | else
Params[0] = 2.2;
Params[1] = 1.5;
Params[2] = -0.5;
Params[3] = 0.3;
if (!CheckSingleParametric("IEC 61966-3", IEC61966_3, 3, Params)) return 0;
// 4) IEC 61966-2.1 (sRGB)
// Y = (aX + b)^Gamma | X >= d
// Y = cX | X < d
Params[0] = 2.4;
Params[1] = 1. / 1.055;
Params[2] = 0.055 / 1.055;
Params[3] = 1. / 12.92;
Params[4] = 0.04045;
if (!CheckSingleParametric("IEC 61966-2.1", IEC61966_21, 4, Params)) return 0;
// 5) Y = (aX + b)^Gamma + e | X >= d
// Y = cX + f | else
Params[0] = 2.2;
Params[1] = 0.7;
Params[2] = 0.2;
Params[3] = 0.3;
Params[4] = 0.1;
Params[5] = 0.5;
Params[6] = 0.2;
if (!CheckSingleParametric("param_5", param_5, 5, Params)) return 0;
// 6) Y = (aX + b) ^ Gamma + c
Params[0] = 2.2;
Params[1] = 0.7;
Params[2] = 0.2;
Params[3] = 0.3;
if (!CheckSingleParametric("param_6", param_6, 6, Params)) return 0;
// 7) Y = a * log (b * X^Gamma + c) + d
Params[0] = 2.2;
Params[1] = 0.9;
Params[2] = 0.9;
Params[3] = 0.02;
Params[4] = 0.1;
if (!CheckSingleParametric("param_7", param_7, 7, Params)) return 0;
// 8) Y = a * b ^ (c*X+d) + e
Params[0] = 0.9;
Params[1] = 0.9;
Params[2] = 1.02;
Params[3] = 0.1;
Params[4] = 0.2;
if (!CheckSingleParametric("param_8", param_8, 8, Params)) return 0;
// 108: S-Shaped: (1 - (1-x)^1/g)^1/g
Params[0] = 1.9;
if (!CheckSingleParametric("sigmoidal", sigmoidal, 108, Params)) return 0;
// All OK
return 1;
}
// LUT checks ------------------------------------------------------------------------------
static
cmsInt32Number CheckLUTcreation(void)
{
cmsPipeline* lut;
cmsPipeline* lut2;
cmsInt32Number n1, n2;
lut = cmsPipelineAlloc(DbgThread(), 1, 1);
n1 = cmsPipelineStageCount(lut);
lut2 = cmsPipelineDup(lut);
n2 = cmsPipelineStageCount(lut2);
cmsPipelineFree(lut);
cmsPipelineFree(lut2);
return (n1 == 0) && (n2 == 0);
}
// Create a MPE for a identity matrix
static
void AddIdentityMatrix(cmsPipeline* lut)
{
const cmsFloat64Number Identity[] = { 1, 0, 0,
0, 1, 0,
0, 0, 1,
0, 0, 0 };
cmsPipelineInsertStage(lut, cmsAT_END, cmsStageAllocMatrix(DbgThread(), 3, 3, Identity, NULL));
}
// Create a MPE for identity cmsFloat32Number CLUT
static
void AddIdentityCLUTfloat(cmsPipeline* lut)
{
const cmsFloat32Number Table[] = {
0, 0, 0,
0, 0, 1.0,
0, 1.0, 0,
0, 1.0, 1.0,
1.0, 0, 0,
1.0, 0, 1.0,
1.0, 1.0, 0,
1.0, 1.0, 1.0
};
cmsPipelineInsertStage(lut, cmsAT_END, cmsStageAllocCLutFloat(DbgThread(), 2, 3, 3, Table));
}
// Create a MPE for identity cmsFloat32Number CLUT
static
void AddIdentityCLUT16(cmsPipeline* lut)
{
const cmsUInt16Number Table[] = {
0, 0, 0,
0, 0, 0xffff,
0, 0xffff, 0,
0, 0xffff, 0xffff,
0xffff, 0, 0,
0xffff, 0, 0xffff,
0xffff, 0xffff, 0,
0xffff, 0xffff, 0xffff
};
cmsPipelineInsertStage(lut, cmsAT_END, cmsStageAllocCLut16bit(DbgThread(), 2, 3, 3, Table));
}
// Create a 3 fn identity curves
static
void Add3GammaCurves(cmsPipeline* lut, cmsFloat64Number Curve)
{
cmsToneCurve* id = cmsBuildGamma(DbgThread(), Curve);
cmsToneCurve* id3[3];
id3[0] = id;
id3[1] = id;
id3[2] = id;
cmsPipelineInsertStage(lut, cmsAT_END, cmsStageAllocToneCurves(DbgThread(), 3, id3));
cmsFreeToneCurve(id);
}
static
cmsInt32Number CheckFloatLUT(cmsPipeline* lut)
{
cmsInt32Number n1, i, j;
cmsFloat32Number Inf[3], Outf[3];
n1=0;
for (j=0; j < 65535; j++) {
cmsInt32Number af[3];
Inf[0] = Inf[1] = Inf[2] = (cmsFloat32Number) j / 65535.0F;
cmsPipelineEvalFloat(Inf, Outf, lut);
af[0] = (cmsInt32Number) floor(Outf[0]*65535.0 + 0.5);
af[1] = (cmsInt32Number) floor(Outf[1]*65535.0 + 0.5);
af[2] = (cmsInt32Number) floor(Outf[2]*65535.0 + 0.5);
for (i=0; i < 3; i++) {
if (af[i] != j) {
n1++;
}
}
}
return (n1 == 0);
}
static
cmsInt32Number Check16LUT(cmsPipeline* lut)
{
cmsInt32Number n2, i, j;
cmsUInt16Number Inw[3], Outw[3];
n2=0;
for (j=0; j < 65535; j++) {
cmsInt32Number aw[3];
Inw[0] = Inw[1] = Inw[2] = (cmsUInt16Number) j;
cmsPipelineEval16(Inw, Outw, lut);
aw[0] = Outw[0];
aw[1] = Outw[1];
aw[2] = Outw[2];
for (i=0; i < 3; i++) {
if (aw[i] != j) {
n2++;
}
}
}
return (n2 == 0);
}
// Check any LUT that is linear
static
cmsInt32Number CheckStagesLUT(cmsPipeline* lut, cmsInt32Number ExpectedStages)
{
cmsInt32Number nInpChans, nOutpChans, nStages;
nInpChans = cmsPipelineInputChannels(lut);
nOutpChans = cmsPipelineOutputChannels(lut);
nStages = cmsPipelineStageCount(lut);
return (nInpChans == 3) && (nOutpChans == 3) && (nStages == ExpectedStages);
}
static
cmsInt32Number CheckFullLUT(cmsPipeline* lut, cmsInt32Number ExpectedStages)
{
cmsInt32Number rc = CheckStagesLUT(lut, ExpectedStages) && Check16LUT(lut) && CheckFloatLUT(lut);
cmsPipelineFree(lut);
return rc;
}
static
cmsInt32Number Check1StageLUT(void)
{
cmsPipeline* lut = cmsPipelineAlloc(DbgThread(), 3, 3);
AddIdentityMatrix(lut);
return CheckFullLUT(lut, 1);
}
static
cmsInt32Number Check2StageLUT(void)
{
cmsPipeline* lut = cmsPipelineAlloc(DbgThread(), 3, 3);
AddIdentityMatrix(lut);
AddIdentityCLUTfloat(lut);
return CheckFullLUT(lut, 2);
}
static
cmsInt32Number Check2Stage16LUT(void)
{
cmsPipeline* lut = cmsPipelineAlloc(DbgThread(), 3, 3);
AddIdentityMatrix(lut);
AddIdentityCLUT16(lut);
return CheckFullLUT(lut, 2);
}
static
cmsInt32Number Check3StageLUT(void)
{
cmsPipeline* lut = cmsPipelineAlloc(DbgThread(), 3, 3);
AddIdentityMatrix(lut);
AddIdentityCLUTfloat(lut);
Add3GammaCurves(lut, 1.0);
return CheckFullLUT(lut, 3);
}
static
cmsInt32Number Check3Stage16LUT(void)
{
cmsPipeline* lut = cmsPipelineAlloc(DbgThread(), 3, 3);
AddIdentityMatrix(lut);
AddIdentityCLUT16(lut);
Add3GammaCurves(lut, 1.0);
return CheckFullLUT(lut, 3);
}
static
cmsInt32Number Check4StageLUT(void)
{
cmsPipeline* lut = cmsPipelineAlloc(DbgThread(), 3, 3);
AddIdentityMatrix(lut);
AddIdentityCLUTfloat(lut);
Add3GammaCurves(lut, 1.0);
AddIdentityMatrix(lut);
return CheckFullLUT(lut, 4);
}
static
cmsInt32Number Check4Stage16LUT(void)
{
cmsPipeline* lut = cmsPipelineAlloc(DbgThread(), 3, 3);
AddIdentityMatrix(lut);
AddIdentityCLUT16(lut);
Add3GammaCurves(lut, 1.0);
AddIdentityMatrix(lut);
return CheckFullLUT(lut, 4);
}
static
cmsInt32Number Check5StageLUT(void)
{
cmsPipeline* lut = cmsPipelineAlloc(DbgThread(), 3, 3);
AddIdentityMatrix(lut);
AddIdentityCLUTfloat(lut);
Add3GammaCurves(lut, 1.0);
AddIdentityMatrix(lut);
Add3GammaCurves(lut, 1.0);
return CheckFullLUT(lut, 5);
}
static
cmsInt32Number Check5Stage16LUT(void)
{
cmsPipeline* lut = cmsPipelineAlloc(DbgThread(), 3, 3);
AddIdentityMatrix(lut);
AddIdentityCLUT16(lut);
Add3GammaCurves(lut, 1.0);
AddIdentityMatrix(lut);
Add3GammaCurves(lut, 1.0);
return CheckFullLUT(lut, 5);
}
static
cmsInt32Number Check6StageLUT(void)
{
cmsPipeline* lut = cmsPipelineAlloc(DbgThread(), 3, 3);
AddIdentityMatrix(lut);
Add3GammaCurves(lut, 1.0);
AddIdentityCLUTfloat(lut);
Add3GammaCurves(lut, 1.0);
AddIdentityMatrix(lut);
Add3GammaCurves(lut, 1.0);
return CheckFullLUT(lut, 6);
}
static
cmsInt32Number Check6Stage16LUT(void)
{
cmsPipeline* lut = cmsPipelineAlloc(DbgThread(), 3, 3);
AddIdentityMatrix(lut);
Add3GammaCurves(lut, 1.0);
AddIdentityCLUT16(lut);
Add3GammaCurves(lut, 1.0);
AddIdentityMatrix(lut);
Add3GammaCurves(lut, 1.0);
return CheckFullLUT(lut, 6);
}
static
cmsInt32Number CheckLab2LabLUT(void)
{
cmsPipeline* lut = cmsPipelineAlloc(DbgThread(), 3, 3);
cmsInt32Number rc;
cmsPipelineInsertStage(lut, cmsAT_END, _cmsStageAllocLab2XYZ(DbgThread()));
cmsPipelineInsertStage(lut, cmsAT_END, _cmsStageAllocXYZ2Lab(DbgThread()));
rc = CheckFloatLUT(lut) && CheckStagesLUT(lut, 2);
cmsPipelineFree(lut);
return rc;
}
static
cmsInt32Number CheckXYZ2XYZLUT(void)
{
cmsPipeline* lut = cmsPipelineAlloc(DbgThread(), 3, 3);
cmsInt32Number rc;
cmsPipelineInsertStage(lut, cmsAT_END, _cmsStageAllocXYZ2Lab(DbgThread()));
cmsPipelineInsertStage(lut, cmsAT_END, _cmsStageAllocLab2XYZ(DbgThread()));
rc = CheckFloatLUT(lut) && CheckStagesLUT(lut, 2);
cmsPipelineFree(lut);
return rc;
}
static
cmsInt32Number CheckLab2LabMatLUT(void)
{
cmsPipeline* lut = cmsPipelineAlloc(DbgThread(), 3, 3);
cmsInt32Number rc;
cmsPipelineInsertStage(lut, cmsAT_END, _cmsStageAllocLab2XYZ(DbgThread()));
AddIdentityMatrix(lut);
cmsPipelineInsertStage(lut, cmsAT_END, _cmsStageAllocXYZ2Lab(DbgThread()));
rc = CheckFloatLUT(lut) && CheckStagesLUT(lut, 3);
cmsPipelineFree(lut);
return rc;
}
static
cmsInt32Number CheckNamedColorLUT(void)
{
cmsPipeline* lut = cmsPipelineAlloc(DbgThread(), 3, 3);
cmsNAMEDCOLORLIST* nc;
cmsInt32Number i,j, rc = 1, n2;
cmsUInt16Number PCS[3];
cmsUInt16Number Colorant[cmsMAXCHANNELS];
char Name[255];
cmsUInt16Number Inw[3], Outw[3];
nc = cmsAllocNamedColorList(DbgThread(), 256, 3, "pre", "post");
if (nc == NULL) return 0;
for (i=0; i < 256; i++) {
PCS[0] = PCS[1] = PCS[2] = (cmsUInt16Number) i;
Colorant[0] = Colorant[1] = Colorant[2] = Colorant[3] = (cmsUInt16Number) i;
sprintf(Name, "#%d", i);
if (!cmsAppendNamedColor(nc, Name, PCS, Colorant)) { rc = 0; break; }
}
cmsPipelineInsertStage(lut, cmsAT_END, _cmsStageAllocNamedColor(nc, FALSE));
cmsFreeNamedColorList(nc);
if (rc == 0) return 0;
n2=0;
for (j=0; j < 256; j++) {
Inw[0] = (cmsUInt16Number) j;
cmsPipelineEval16(Inw, Outw, lut);
for (i=0; i < 3; i++) {
if (Outw[i] != j) {
n2++;
}
}
}
cmsPipelineFree(lut);
return (n2 == 0);
}
// --------------------------------------------------------------------------------------------
// A lightweight test of multilocalized unicode structures.
static
cmsInt32Number CheckMLU(void)
{
cmsMLU* mlu, *mlu2, *mlu3;
char Buffer[256], Buffer2[256];
cmsInt32Number rc = 1;
cmsInt32Number i;
cmsHPROFILE h= NULL;
// Allocate a MLU structure, no preferred size
mlu = cmsMLUalloc(DbgThread(), 0);
// Add some localizations
cmsMLUsetWide(mlu, "en", "US", L"Hello, world");
cmsMLUsetWide(mlu, "es", "ES", L"Hola, mundo");
cmsMLUsetWide(mlu, "fr", "FR", L"Bonjour, le monde");
cmsMLUsetWide(mlu, "ca", "CA", L"Hola, mon");
// Check the returned string for each language
cmsMLUgetASCII(mlu, "en", "US", Buffer, 256);
if (strcmp(Buffer, "Hello, world") != 0) rc = 0;
cmsMLUgetASCII(mlu, "es", "ES", Buffer, 256);
if (strcmp(Buffer, "Hola, mundo") != 0) rc = 0;
cmsMLUgetASCII(mlu, "fr", "FR", Buffer, 256);
if (strcmp(Buffer, "Bonjour, le monde") != 0) rc = 0;
cmsMLUgetASCII(mlu, "ca", "CA", Buffer, 256);
if (strcmp(Buffer, "Hola, mon") != 0) rc = 0;
if (rc == 0)
Fail("Unexpected string '%s'", Buffer);
// So far, so good.
cmsMLUfree(mlu);
// Now for performance, allocate an empty struct
mlu = cmsMLUalloc(DbgThread(), 0);
// Fill it with several thousands of different lenguages
for (i=0; i < 4096; i++) {
char Lang[3];
Lang[0] = (char) (i % 255);
Lang[1] = (char) (i / 255);
Lang[2] = 0;
sprintf(Buffer, "String #%i", i);
cmsMLUsetASCII(mlu, Lang, Lang, Buffer);
}
// Duplicate it
mlu2 = cmsMLUdup(mlu);
// Get rid of original
cmsMLUfree(mlu);
// Check all is still in place
for (i=0; i < 4096; i++) {
char Lang[3];
Lang[0] = (char)(i % 255);
Lang[1] = (char)(i / 255);
Lang[2] = 0;
cmsMLUgetASCII(mlu2, Lang, Lang, Buffer2, 256);
sprintf(Buffer, "String #%i", i);
if (strcmp(Buffer, Buffer2) != 0) { rc = 0; break; }
}
if (rc == 0)
Fail("Unexpected string '%s'", Buffer2);
// Check profile IO
h = cmsOpenProfileFromFileTHR(DbgThread(), "mlucheck.icc", "w");
cmsSetProfileVersion(h, 4.3);
cmsWriteTag(h, cmsSigProfileDescriptionTag, mlu2);
cmsCloseProfile(h);
cmsMLUfree(mlu2);
h = cmsOpenProfileFromFileTHR(DbgThread(), "mlucheck.icc", "r");
mlu3 = cmsReadTag(h, cmsSigProfileDescriptionTag);
if (mlu3 == NULL) { Fail("Profile didn't get the MLU\n"); rc = 0; goto Error; }
// Check all is still in place
for (i=0; i < 4096; i++) {
char Lang[3];
Lang[0] = (char) (i % 255);
Lang[1] = (char) (i / 255);
Lang[2] = 0;
cmsMLUgetASCII(mlu3, Lang, Lang, Buffer2, 256);
sprintf(Buffer, "String #%i", i);
if (strcmp(Buffer, Buffer2) != 0) { rc = 0; break; }
}
if (rc == 0) Fail("Unexpected string '%s'", Buffer2);
Error:
if (h != NULL) cmsCloseProfile(h);
remove("mlucheck.icc");
return rc;
}
// A lightweight test of named color structures.
static
cmsInt32Number CheckNamedColorList(void)
{
cmsNAMEDCOLORLIST* nc = NULL, *nc2;
cmsInt32Number i, j, rc=1;
char Name[255];
cmsUInt16Number PCS[3];
cmsUInt16Number Colorant[cmsMAXCHANNELS];
char CheckName[255];
cmsUInt16Number CheckPCS[3];
cmsUInt16Number CheckColorant[cmsMAXCHANNELS];
cmsHPROFILE h;
nc = cmsAllocNamedColorList(DbgThread(), 0, 4, "prefix", "suffix");
if (nc == NULL) return 0;
for (i=0; i < 4096; i++) {
PCS[0] = PCS[1] = PCS[2] = (cmsUInt16Number) i;
Colorant[0] = Colorant[1] = Colorant[2] = Colorant[3] = (cmsUInt16Number) (4096 - i);
sprintf(Name, "#%d", i);
if (!cmsAppendNamedColor(nc, Name, PCS, Colorant)) { rc = 0; break; }
}
for (i=0; i < 4096; i++) {
CheckPCS[0] = CheckPCS[1] = CheckPCS[2] = (cmsUInt16Number) i;
CheckColorant[0] = CheckColorant[1] = CheckColorant[2] = CheckColorant[3] = (cmsUInt16Number) (4096 - i);
sprintf(CheckName, "#%d", i);
if (!cmsNamedColorInfo(nc, i, Name, NULL, NULL, PCS, Colorant)) { rc = 0; goto Error; }
for (j=0; j < 3; j++) {
if (CheckPCS[j] != PCS[j]) { rc = 0; Fail("Invalid PCS"); goto Error; }
}
for (j=0; j < 4; j++) {
if (CheckColorant[j] != Colorant[j]) { rc = 0; Fail("Invalid Colorant"); goto Error; };
}
if (strcmp(Name, CheckName) != 0) {rc = 0; Fail("Invalid Name"); goto Error; };
}
h = cmsOpenProfileFromFileTHR(DbgThread(), "namedcol.icc", "w");
if (h == NULL) return 0;
if (!cmsWriteTag(h, cmsSigNamedColor2Tag, nc)) return 0;
cmsCloseProfile(h);
cmsFreeNamedColorList(nc);
nc = NULL;
h = cmsOpenProfileFromFileTHR(DbgThread(), "namedcol.icc", "r");
nc2 = cmsReadTag(h, cmsSigNamedColor2Tag);
if (cmsNamedColorCount(nc2) != 4096) { rc = 0; Fail("Invalid count"); goto Error; }
i = cmsNamedColorIndex(nc2, "#123");
if (i != 123) { rc = 0; Fail("Invalid index"); goto Error; }
for (i=0; i < 4096; i++) {
CheckPCS[0] = CheckPCS[1] = CheckPCS[2] = (cmsUInt16Number) i;
CheckColorant[0] = CheckColorant[1] = CheckColorant[2] = CheckColorant[3] = (cmsUInt16Number) (4096 - i);
sprintf(CheckName, "#%d", i);
if (!cmsNamedColorInfo(nc2, i, Name, NULL, NULL, PCS, Colorant)) { rc = 0; goto Error; }
for (j=0; j < 3; j++) {
if (CheckPCS[j] != PCS[j]) { rc = 0; Fail("Invalid PCS"); goto Error; }
}
for (j=0; j < 4; j++) {
if (CheckColorant[j] != Colorant[j]) { rc = 0; Fail("Invalid Colorant"); goto Error; };
}
if (strcmp(Name, CheckName) != 0) {rc = 0; Fail("Invalid Name"); goto Error; };
}
cmsCloseProfile(h);
remove("namedcol.icc");
Error:
if (nc != NULL) cmsFreeNamedColorList(nc);
return rc;
}
// ----------------------------------------------------------------------------------------------------------
// Formatters
static cmsBool FormatterFailed;
static
void CheckSingleFormatter16(cmsUInt32Number Type, const char* Text)
{
cmsUInt16Number Values[cmsMAXCHANNELS];
cmsUInt8Number Buffer[1024];
cmsFormatter f, b;
cmsInt32Number i, j, nChannels, bytes;
_cmsTRANSFORM info;
// Already failed?
if (FormatterFailed) return;
memset(&info, 0, sizeof(info));
info.OutputFormat = info.InputFormat = Type;
// Go forth and back
f = _cmsGetFormatter(Type, cmsFormatterInput, CMS_PACK_FLAGS_16BITS);
b = _cmsGetFormatter(Type, cmsFormatterOutput, CMS_PACK_FLAGS_16BITS);
if (f.Fmt16 == NULL || b.Fmt16 == NULL) {
Fail("no formatter for %s", Text);
FormatterFailed = TRUE;
// Useful for debug
f = _cmsGetFormatter(Type, cmsFormatterInput, CMS_PACK_FLAGS_16BITS);
b = _cmsGetFormatter(Type, cmsFormatterOutput, CMS_PACK_FLAGS_16BITS);
return;
}
nChannels = T_CHANNELS(Type);
bytes = T_BYTES(Type);
for (j=0; j < 5; j++) {
for (i=0; i < nChannels; i++) {
Values[i] = (cmsUInt16Number) (i+j);
// For 8-bit
if (bytes == 1)
Values[i] <<= 8;
}
b.Fmt16(&info, Values, Buffer, 1);
memset(Values, 0, sizeof(Values));
f.Fmt16(&info, Values, Buffer, 1);
for (i=0; i < nChannels; i++) {
if (bytes == 1)
Values[i] >>= 8;
if (Values[i] != i+j) {
Fail("%s failed", Text);
FormatterFailed = TRUE;
// Useful for debug
for (i=0; i < nChannels; i++) {
Values[i] = (cmsUInt16Number) (i+j);
// For 8-bit
if (bytes == 1)
Values[i] <<= 8;
}
b.Fmt16(&info, Values, Buffer, 1);
f.Fmt16(&info, Values, Buffer, 1);
return;
}
}
}
}
#define C(a) CheckSingleFormatter16(a, #a)
// Check all formatters
static
cmsInt32Number CheckFormatters16(void)
{
FormatterFailed = FALSE;
C( TYPE_GRAY_8 );
C( TYPE_GRAY_8_REV );
C( TYPE_GRAY_16 );
C( TYPE_GRAY_16_REV );
C( TYPE_GRAY_16_SE );
C( TYPE_GRAYA_8 );
C( TYPE_GRAYA_16 );
C( TYPE_GRAYA_16_SE );
C( TYPE_GRAYA_8_PLANAR );
C( TYPE_GRAYA_16_PLANAR );
C( TYPE_RGB_8 );
C( TYPE_RGB_8_PLANAR );
C( TYPE_BGR_8 );
C( TYPE_BGR_8_PLANAR );
C( TYPE_RGB_16 );
C( TYPE_RGB_16_PLANAR );
C( TYPE_RGB_16_SE );
C( TYPE_BGR_16 );
C( TYPE_BGR_16_PLANAR );
C( TYPE_BGR_16_SE );
C( TYPE_RGBA_8 );
C( TYPE_RGBA_8_PLANAR );
C( TYPE_RGBA_16 );
C( TYPE_RGBA_16_PLANAR );
C( TYPE_RGBA_16_SE );
C( TYPE_ARGB_8 );
C( TYPE_ARGB_8_PLANAR );
C( TYPE_ARGB_16 );
C( TYPE_ABGR_8 );
C( TYPE_ABGR_8_PLANAR );
C( TYPE_ABGR_16 );
C( TYPE_ABGR_16_PLANAR );
C( TYPE_ABGR_16_SE );
C( TYPE_BGRA_8 );
C( TYPE_BGRA_8_PLANAR );
C( TYPE_BGRA_16 );
C( TYPE_BGRA_16_SE );
C( TYPE_CMY_8 );
C( TYPE_CMY_8_PLANAR );
C( TYPE_CMY_16 );
C( TYPE_CMY_16_PLANAR );
C( TYPE_CMY_16_SE );
C( TYPE_CMYK_8 );
C( TYPE_CMYKA_8 );
C( TYPE_CMYK_8_REV );
C( TYPE_YUVK_8 );
C( TYPE_CMYK_8_PLANAR );
C( TYPE_CMYK_16 );
C( TYPE_CMYK_16_REV );
C( TYPE_YUVK_16 );
C( TYPE_CMYK_16_PLANAR );
C( TYPE_CMYK_16_SE );
C( TYPE_KYMC_8 );
C( TYPE_KYMC_16 );
C( TYPE_KYMC_16_SE );
C( TYPE_KCMY_8 );
C( TYPE_KCMY_8_REV );
C( TYPE_KCMY_16 );
C( TYPE_KCMY_16_REV );
C( TYPE_KCMY_16_SE );
C( TYPE_CMYK5_8 );
C( TYPE_CMYK5_16 );
C( TYPE_CMYK5_16_SE );
C( TYPE_KYMC5_8 );
C( TYPE_KYMC5_16 );
C( TYPE_KYMC5_16_SE );
C( TYPE_CMYK6_8 );
C( TYPE_CMYK6_8_PLANAR );
C( TYPE_CMYK6_16 );
C( TYPE_CMYK6_16_PLANAR );
C( TYPE_CMYK6_16_SE );
C( TYPE_CMYK7_8 );
C( TYPE_CMYK7_16 );
C( TYPE_CMYK7_16_SE );
C( TYPE_KYMC7_8 );
C( TYPE_KYMC7_16 );
C( TYPE_KYMC7_16_SE );
C( TYPE_CMYK8_8 );
C( TYPE_CMYK8_16 );
C( TYPE_CMYK8_16_SE );
C( TYPE_KYMC8_8 );
C( TYPE_KYMC8_16 );
C( TYPE_KYMC8_16_SE );
C( TYPE_CMYK9_8 );
C( TYPE_CMYK9_16 );
C( TYPE_CMYK9_16_SE );
C( TYPE_KYMC9_8 );
C( TYPE_KYMC9_16 );
C( TYPE_KYMC9_16_SE );
C( TYPE_CMYK10_8 );
C( TYPE_CMYK10_16 );
C( TYPE_CMYK10_16_SE );
C( TYPE_KYMC10_8 );
C( TYPE_KYMC10_16 );
C( TYPE_KYMC10_16_SE );
C( TYPE_CMYK11_8 );
C( TYPE_CMYK11_16 );
C( TYPE_CMYK11_16_SE );
C( TYPE_KYMC11_8 );
C( TYPE_KYMC11_16 );
C( TYPE_KYMC11_16_SE );
C( TYPE_CMYK12_8 );
C( TYPE_CMYK12_16 );
C( TYPE_CMYK12_16_SE );
C( TYPE_KYMC12_8 );
C( TYPE_KYMC12_16 );
C( TYPE_KYMC12_16_SE );
C( TYPE_XYZ_16 );
C( TYPE_Lab_8 );
C( TYPE_ALab_8 );
C( TYPE_Lab_16 );
C( TYPE_Yxy_16 );
C( TYPE_YCbCr_8 );
C( TYPE_YCbCr_8_PLANAR );
C( TYPE_YCbCr_16 );
C( TYPE_YCbCr_16_PLANAR );
C( TYPE_YCbCr_16_SE );
C( TYPE_YUV_8 );
C( TYPE_YUV_8_PLANAR );
C( TYPE_YUV_16 );
C( TYPE_YUV_16_PLANAR );
C( TYPE_YUV_16_SE );
C( TYPE_HLS_8 );
C( TYPE_HLS_8_PLANAR );
C( TYPE_HLS_16 );
C( TYPE_HLS_16_PLANAR );
C( TYPE_HLS_16_SE );
C( TYPE_HSV_8 );
C( TYPE_HSV_8_PLANAR );
C( TYPE_HSV_16 );
C( TYPE_HSV_16_PLANAR );
C( TYPE_HSV_16_SE );
C( TYPE_XYZ_FLT );
C( TYPE_Lab_FLT );
C( TYPE_GRAY_FLT );
C( TYPE_RGB_FLT );
C( TYPE_BGR_FLT );
C( TYPE_CMYK_FLT );
C( TYPE_LabA_FLT );
C( TYPE_RGBA_FLT );
C( TYPE_ARGB_FLT );
C( TYPE_BGRA_FLT );
C( TYPE_ABGR_FLT );
C( TYPE_XYZ_DBL );
C( TYPE_Lab_DBL );
C( TYPE_GRAY_DBL );
C( TYPE_RGB_DBL );
C( TYPE_BGR_DBL );
C( TYPE_CMYK_DBL );
C( TYPE_LabV2_8 );
C( TYPE_ALabV2_8 );
C( TYPE_LabV2_16 );
C( TYPE_GRAY_HALF_FLT );
C( TYPE_RGB_HALF_FLT );
C( TYPE_CMYK_HALF_FLT );
C( TYPE_RGBA_HALF_FLT );
C( TYPE_RGBA_HALF_FLT );
C( TYPE_ARGB_HALF_FLT );
C( TYPE_BGR_HALF_FLT );
C( TYPE_BGRA_HALF_FLT );
C( TYPE_ABGR_HALF_FLT );
return FormatterFailed == 0 ? 1 : 0;
}
#undef C
static
void CheckSingleFormatterFloat(cmsUInt32Number Type, const char* Text)
{
cmsFloat32Number Values[cmsMAXCHANNELS];
cmsUInt8Number Buffer[1024];
cmsFormatter f, b;
cmsInt32Number i, j, nChannels;
_cmsTRANSFORM info;
// Already failed?
if (FormatterFailed) return;
memset(&info, 0, sizeof(info));
info.OutputFormat = info.InputFormat = Type;
// Go forth and back
f = _cmsGetFormatter(Type, cmsFormatterInput, CMS_PACK_FLAGS_FLOAT);
b = _cmsGetFormatter(Type, cmsFormatterOutput, CMS_PACK_FLAGS_FLOAT);
if (f.FmtFloat == NULL || b.FmtFloat == NULL) {
Fail("no formatter for %s", Text);
FormatterFailed = TRUE;
// Useful for debug
f = _cmsGetFormatter(Type, cmsFormatterInput, CMS_PACK_FLAGS_FLOAT);
b = _cmsGetFormatter(Type, cmsFormatterOutput, CMS_PACK_FLAGS_FLOAT);
return;
}
nChannels = T_CHANNELS(Type);
for (j=0; j < 5; j++) {
for (i=0; i < nChannels; i++) {
Values[i] = (cmsFloat32Number) (i+j);
}
b.FmtFloat(&info, Values, Buffer, 1);
memset(Values, 0, sizeof(Values));
f.FmtFloat(&info, Values, Buffer, 1);
for (i=0; i < nChannels; i++) {
cmsFloat64Number delta = fabs(Values[i] - ( i+j));
if (delta > 0.000000001) {
Fail("%s failed", Text);
FormatterFailed = TRUE;
// Useful for debug
for (i=0; i < nChannels; i++) {
Values[i] = (cmsFloat32Number) (i+j);
}
b.FmtFloat(&info, Values, Buffer, 1);
f.FmtFloat(&info, Values, Buffer, 1);
return;
}
}
}
}
#define C(a) CheckSingleFormatterFloat(a, #a)
static
cmsInt32Number CheckFormattersFloat(void)
{
FormatterFailed = FALSE;
C( TYPE_XYZ_FLT );
C( TYPE_Lab_FLT );
C( TYPE_GRAY_FLT );
C( TYPE_RGB_FLT );
C( TYPE_BGR_FLT );
C( TYPE_CMYK_FLT );
C( TYPE_LabA_FLT );
C( TYPE_RGBA_FLT );
C( TYPE_ARGB_FLT );
C( TYPE_BGRA_FLT );
C( TYPE_ABGR_FLT );
C( TYPE_XYZ_DBL );
C( TYPE_Lab_DBL );
C( TYPE_GRAY_DBL );
C( TYPE_RGB_DBL );
C( TYPE_BGR_DBL );
C( TYPE_CMYK_DBL );
C( TYPE_GRAY_HALF_FLT );
C( TYPE_RGB_HALF_FLT );
C( TYPE_CMYK_HALF_FLT );
C( TYPE_RGBA_HALF_FLT );
C( TYPE_RGBA_HALF_FLT );
C( TYPE_ARGB_HALF_FLT );
C( TYPE_BGR_HALF_FLT );
C( TYPE_BGRA_HALF_FLT );
C( TYPE_ABGR_HALF_FLT );
return FormatterFailed == 0 ? 1 : 0;
}
#undef C
#ifndef CMS_NO_HALF_SUPPORT
// Check half float
#define my_isfinite(x) ((x) != (x))
static
cmsInt32Number CheckFormattersHalf(void)
{
int i, j;
for (i=0; i < 0xffff; i++) {
cmsFloat32Number f = _cmsHalf2Float((cmsUInt16Number) i);
if (!my_isfinite(f)) {
j = _cmsFloat2Half(f);
if (i != j) {
Fail("%d != %d in Half float support!\n", i, j);
return 0;
}
}
}
return 1;
}
#endif
static
cmsInt32Number CheckOneRGB(cmsHTRANSFORM xform, cmsUInt16Number R, cmsUInt16Number G, cmsUInt16Number B, cmsUInt16Number Ro, cmsUInt16Number Go, cmsUInt16Number Bo)
{
cmsUInt16Number RGB[3];
cmsUInt16Number Out[3];
RGB[0] = R;
RGB[1] = G;
RGB[2] = B;
cmsDoTransform(xform, RGB, Out, 1);
return IsGoodWord("R", Ro , Out[0]) &&
IsGoodWord("G", Go , Out[1]) &&
IsGoodWord("B", Bo , Out[2]);
}
// Check known values going from sRGB to XYZ
static
cmsInt32Number CheckOneRGB_double(cmsHTRANSFORM xform, cmsFloat64Number R, cmsFloat64Number G, cmsFloat64Number B, cmsFloat64Number Ro, cmsFloat64Number Go, cmsFloat64Number Bo)
{
cmsFloat64Number RGB[3];
cmsFloat64Number Out[3];
RGB[0] = R;
RGB[1] = G;
RGB[2] = B;
cmsDoTransform(xform, RGB, Out, 1);
return IsGoodVal("R", Ro , Out[0], 0.01) &&
IsGoodVal("G", Go , Out[1], 0.01) &&
IsGoodVal("B", Bo , Out[2], 0.01);
}
static
cmsInt32Number CheckChangeBufferFormat(void)
{
cmsHPROFILE hsRGB = cmsCreate_sRGBProfile();
cmsHTRANSFORM xform;
xform = cmsCreateTransform(hsRGB, TYPE_RGB_16, hsRGB, TYPE_RGB_16, INTENT_PERCEPTUAL, 0);
cmsCloseProfile(hsRGB);
if (xform == NULL) return 0;
if (!CheckOneRGB(xform, 0, 0, 0, 0, 0, 0)) return 0;
if (!CheckOneRGB(xform, 120, 0, 0, 120, 0, 0)) return 0;
if (!CheckOneRGB(xform, 0, 222, 255, 0, 222, 255)) return 0;
if (!cmsChangeBuffersFormat(xform, TYPE_BGR_16, TYPE_RGB_16)) return 0;
if (!CheckOneRGB(xform, 0, 0, 123, 123, 0, 0)) return 0;
if (!CheckOneRGB(xform, 154, 234, 0, 0, 234, 154)) return 0;
if (!cmsChangeBuffersFormat(xform, TYPE_RGB_DBL, TYPE_RGB_DBL)) return 0;
if (!CheckOneRGB_double(xform, 0.20, 0, 0, 0.20, 0, 0)) return 0;
if (!CheckOneRGB_double(xform, 0, 0.9, 1, 0, 0.9, 1)) return 0;
cmsDeleteTransform(xform);
return 1;
}
// Write tag testbed ----------------------------------------------------------------------------------------
static
cmsInt32Number CheckXYZ(cmsInt32Number Pass, cmsHPROFILE hProfile, cmsTagSignature tag)
{
cmsCIEXYZ XYZ, *Pt;
switch (Pass) {
case 1:
XYZ.X = 1.0; XYZ.Y = 1.1; XYZ.Z = 1.2;
return cmsWriteTag(hProfile, tag, &XYZ);
case 2:
Pt = cmsReadTag(hProfile, tag);
if (Pt == NULL) return 0;
return IsGoodFixed15_16("X", 1.0, Pt ->X) &&
IsGoodFixed15_16("Y", 1.1, Pt->Y) &&
IsGoodFixed15_16("Z", 1.2, Pt -> Z);
default:
return 0;
}
}
static
cmsInt32Number CheckGamma(cmsInt32Number Pass, cmsHPROFILE hProfile, cmsTagSignature tag)
{
cmsToneCurve *g, *Pt;
cmsInt32Number rc;
switch (Pass) {
case 1:
g = cmsBuildGamma(DbgThread(), 1.0);
rc = cmsWriteTag(hProfile, tag, g);
cmsFreeToneCurve(g);
return rc;
case 2:
Pt = cmsReadTag(hProfile, tag);
if (Pt == NULL) return 0;
return cmsIsToneCurveLinear(Pt);
default:
return 0;
}
}
static
cmsInt32Number CheckText(cmsInt32Number Pass, cmsHPROFILE hProfile, cmsTagSignature tag)
{
cmsMLU *m, *Pt;
cmsInt32Number rc;
char Buffer[256];
switch (Pass) {
case 1:
m = cmsMLUalloc(DbgThread(), 0);
cmsMLUsetASCII(m, cmsNoLanguage, cmsNoCountry, "Test test");
rc = cmsWriteTag(hProfile, tag, m);
cmsMLUfree(m);
return rc;
case 2:
Pt = cmsReadTag(hProfile, tag);
if (Pt == NULL) return 0;
cmsMLUgetASCII(Pt, cmsNoLanguage, cmsNoCountry, Buffer, 256);
return strcmp(Buffer, "Test test") == 0;
default:
return 0;
}
}
static
cmsInt32Number CheckData(cmsInt32Number Pass, cmsHPROFILE hProfile, cmsTagSignature tag)
{
cmsICCData *Pt;
cmsICCData d = { 1, 0, { '?' }};
cmsInt32Number rc;
switch (Pass) {
case 1:
rc = cmsWriteTag(hProfile, tag, &d);
return rc;
case 2:
Pt = cmsReadTag(hProfile, tag);
if (Pt == NULL) return 0;
return (Pt ->data[0] == '?') && (Pt ->flag == 0) && (Pt ->len == 1);
default:
return 0;
}
}
static
cmsInt32Number CheckSignature(cmsInt32Number Pass, cmsHPROFILE hProfile, cmsTagSignature tag)
{
cmsTagSignature *Pt, Holder;
switch (Pass) {
case 1:
Holder = cmsSigPerceptualReferenceMediumGamut;
return cmsWriteTag(hProfile, tag, &Holder);
case 2:
Pt = cmsReadTag(hProfile, tag);
if (Pt == NULL) return 0;
return *Pt == cmsSigPerceptualReferenceMediumGamut;
default:
return 0;
}
}
static
cmsInt32Number CheckDateTime(cmsInt32Number Pass, cmsHPROFILE hProfile, cmsTagSignature tag)
{
struct tm *Pt, Holder;
switch (Pass) {
case 1:
Holder.tm_hour = 1;
Holder.tm_min = 2;
Holder.tm_sec = 3;
Holder.tm_mday = 4;
Holder.tm_mon = 5;
Holder.tm_year = 2009 - 1900;
return cmsWriteTag(hProfile, tag, &Holder);
case 2:
Pt = cmsReadTag(hProfile, tag);
if (Pt == NULL) return 0;
return (Pt ->tm_hour == 1 &&
Pt ->tm_min == 2 &&
Pt ->tm_sec == 3 &&
Pt ->tm_mday == 4 &&
Pt ->tm_mon == 5 &&
Pt ->tm_year == 2009 - 1900);
default:
return 0;
}
}
static
cmsInt32Number CheckNamedColor(cmsInt32Number Pass, cmsHPROFILE hProfile, cmsTagSignature tag, cmsInt32Number max_check, cmsBool colorant_check)
{
cmsNAMEDCOLORLIST* nc;
cmsInt32Number i, j, rc;
char Name[255];
cmsUInt16Number PCS[3];
cmsUInt16Number Colorant[cmsMAXCHANNELS];
char CheckName[255];
cmsUInt16Number CheckPCS[3];
cmsUInt16Number CheckColorant[cmsMAXCHANNELS];
switch (Pass) {
case 1:
nc = cmsAllocNamedColorList(DbgThread(), 0, 4, "prefix", "suffix");
if (nc == NULL) return 0;
for (i=0; i < max_check; i++) {
PCS[0] = PCS[1] = PCS[2] = (cmsUInt16Number) i;
Colorant[0] = Colorant[1] = Colorant[2] = Colorant[3] = (cmsUInt16Number) (max_check - i);
sprintf(Name, "#%d", i);
if (!cmsAppendNamedColor(nc, Name, PCS, Colorant)) { Fail("Couldn't append named color"); return 0; }
}
rc = cmsWriteTag(hProfile, tag, nc);
cmsFreeNamedColorList(nc);
return rc;
case 2:
nc = cmsReadTag(hProfile, tag);
if (nc == NULL) return 0;
for (i=0; i < max_check; i++) {
CheckPCS[0] = CheckPCS[1] = CheckPCS[2] = (cmsUInt16Number) i;
CheckColorant[0] = CheckColorant[1] = CheckColorant[2] = CheckColorant[3] = (cmsUInt16Number) (max_check - i);
sprintf(CheckName, "#%d", i);
if (!cmsNamedColorInfo(nc, i, Name, NULL, NULL, PCS, Colorant)) { Fail("Invalid string"); return 0; }
for (j=0; j < 3; j++) {
if (CheckPCS[j] != PCS[j]) { Fail("Invalid PCS"); return 0; }
}
// This is only used on named color list
if (colorant_check) {
for (j=0; j < 4; j++) {
if (CheckColorant[j] != Colorant[j]) { Fail("Invalid Colorant"); return 0; };
}
}
if (strcmp(Name, CheckName) != 0) { Fail("Invalid Name"); return 0; };
}
return 1;
default: return 0;
}
}
static
cmsInt32Number CheckLUT(cmsInt32Number Pass, cmsHPROFILE hProfile, cmsTagSignature tag)
{
cmsPipeline* Lut, *Pt;
cmsInt32Number rc;
switch (Pass) {
case 1:
Lut = cmsPipelineAlloc(DbgThread(), 3, 3);
if (Lut == NULL) return 0;
// Create an identity LUT
cmsPipelineInsertStage(Lut, cmsAT_BEGIN, _cmsStageAllocIdentityCurves(DbgThread(), 3));
cmsPipelineInsertStage(Lut, cmsAT_END, _cmsStageAllocIdentityCLut(DbgThread(), 3));
cmsPipelineInsertStage(Lut, cmsAT_END, _cmsStageAllocIdentityCurves(DbgThread(), 3));
rc = cmsWriteTag(hProfile, tag, Lut);
cmsPipelineFree(Lut);
return rc;
case 2:
Pt = cmsReadTag(hProfile, tag);
if (Pt == NULL) return 0;
// Transform values, check for identity
return Check16LUT(Pt);
default:
return 0;
}
}
static
cmsInt32Number CheckCHAD(cmsInt32Number Pass, cmsHPROFILE hProfile, cmsTagSignature tag)
{
cmsFloat64Number *Pt;
cmsFloat64Number CHAD[] = { 0, .1, .2, .3, .4, .5, .6, .7, .8 };
cmsInt32Number i;
switch (Pass) {
case 1:
return cmsWriteTag(hProfile, tag, CHAD);
case 2:
Pt = cmsReadTag(hProfile, tag);
if (Pt == NULL) return 0;
for (i=0; i < 9; i++) {
if (!IsGoodFixed15_16("CHAD", Pt[i], CHAD[i])) return 0;
}
return 1;
default:
return 0;
}
}
static
cmsInt32Number CheckChromaticity(cmsInt32Number Pass, cmsHPROFILE hProfile, cmsTagSignature tag)
{
cmsCIExyYTRIPLE *Pt, c = { {0, .1, 1 }, { .3, .4, 1 }, { .6, .7, 1 }};
switch (Pass) {
case 1:
return cmsWriteTag(hProfile, tag, &c);
case 2:
Pt = cmsReadTag(hProfile, tag);
if (Pt == NULL) return 0;
if (!IsGoodFixed15_16("xyY", Pt ->Red.x, c.Red.x)) return 0;
if (!IsGoodFixed15_16("xyY", Pt ->Red.y, c.Red.y)) return 0;
if (!IsGoodFixed15_16("xyY", Pt ->Green.x, c.Green.x)) return 0;
if (!IsGoodFixed15_16("xyY", Pt ->Green.y, c.Green.y)) return 0;
if (!IsGoodFixed15_16("xyY", Pt ->Blue.x, c.Blue.x)) return 0;
if (!IsGoodFixed15_16("xyY", Pt ->Blue.y, c.Blue.y)) return 0;
return 1;
default:
return 0;
}
}
static
cmsInt32Number CheckColorantOrder(cmsInt32Number Pass, cmsHPROFILE hProfile, cmsTagSignature tag)
{
cmsUInt8Number *Pt, c[cmsMAXCHANNELS];
cmsInt32Number i;
switch (Pass) {
case 1:
for (i=0; i < cmsMAXCHANNELS; i++) c[i] = (cmsUInt8Number) (cmsMAXCHANNELS - i - 1);
return cmsWriteTag(hProfile, tag, c);
case 2:
Pt = cmsReadTag(hProfile, tag);
if (Pt == NULL) return 0;
for (i=0; i < cmsMAXCHANNELS; i++) {
if (Pt[i] != ( cmsMAXCHANNELS - i - 1 )) return 0;
}
return 1;
default:
return 0;
}
}
static
cmsInt32Number CheckMeasurement(cmsInt32Number Pass, cmsHPROFILE hProfile, cmsTagSignature tag)
{
cmsICCMeasurementConditions *Pt, m;
switch (Pass) {
case 1:
m.Backing.X = 0.1;
m.Backing.Y = 0.2;
m.Backing.Z = 0.3;
m.Flare = 1.0;
m.Geometry = 1;
m.IlluminantType = cmsILLUMINANT_TYPE_D50;
m.Observer = 1;
return cmsWriteTag(hProfile, tag, &m);
case 2:
Pt = cmsReadTag(hProfile, tag);
if (Pt == NULL) return 0;
if (!IsGoodFixed15_16("Backing", Pt ->Backing.X, 0.1)) return 0;
if (!IsGoodFixed15_16("Backing", Pt ->Backing.Y, 0.2)) return 0;
if (!IsGoodFixed15_16("Backing", Pt ->Backing.Z, 0.3)) return 0;
if (!IsGoodFixed15_16("Flare", Pt ->Flare, 1.0)) return 0;
if (Pt ->Geometry != 1) return 0;
if (Pt ->IlluminantType != cmsILLUMINANT_TYPE_D50) return 0;
if (Pt ->Observer != 1) return 0;
return 1;
default:
return 0;
}
}
static
cmsInt32Number CheckUcrBg(cmsInt32Number Pass, cmsHPROFILE hProfile, cmsTagSignature tag)
{
cmsUcrBg *Pt, m;
cmsInt32Number rc;
char Buffer[256];
switch (Pass) {
case 1:
m.Ucr = cmsBuildGamma(DbgThread(), 2.4);
m.Bg = cmsBuildGamma(DbgThread(), -2.2);
m.Desc = cmsMLUalloc(DbgThread(), 1);
cmsMLUsetASCII(m.Desc, cmsNoLanguage, cmsNoCountry, "test UCR/BG");
rc = cmsWriteTag(hProfile, tag, &m);
cmsMLUfree(m.Desc);
cmsFreeToneCurve(m.Bg);
cmsFreeToneCurve(m.Ucr);
return rc;
case 2:
Pt = cmsReadTag(hProfile, tag);
if (Pt == NULL) return 0;
cmsMLUgetASCII(Pt ->Desc, cmsNoLanguage, cmsNoCountry, Buffer, 256);
if (strcmp(Buffer, "test UCR/BG") != 0) return 0;
return 1;
default:
return 0;
}
}
static
cmsInt32Number CheckCRDinfo(cmsInt32Number Pass, cmsHPROFILE hProfile, cmsTagSignature tag)
{
cmsMLU *mlu;
char Buffer[256];
cmsInt32Number rc;
switch (Pass) {
case 1:
mlu = cmsMLUalloc(DbgThread(), 5);
cmsMLUsetWide(mlu, "PS", "nm", L"test postscript");
cmsMLUsetWide(mlu, "PS", "#0", L"perceptual");
cmsMLUsetWide(mlu, "PS", "#1", L"relative_colorimetric");
cmsMLUsetWide(mlu, "PS", "#2", L"saturation");
cmsMLUsetWide(mlu, "PS", "#3", L"absolute_colorimetric");
rc = cmsWriteTag(hProfile, tag, mlu);
cmsMLUfree(mlu);
return rc;
case 2:
mlu = (cmsMLU*) cmsReadTag(hProfile, tag);
if (mlu == NULL) return 0;
cmsMLUgetASCII(mlu, "PS", "nm", Buffer, 256);
if (strcmp(Buffer, "test postscript") != 0) return 0;
cmsMLUgetASCII(mlu, "PS", "#0", Buffer, 256);
if (strcmp(Buffer, "perceptual") != 0) return 0;
cmsMLUgetASCII(mlu, "PS", "#1", Buffer, 256);
if (strcmp(Buffer, "relative_colorimetric") != 0) return 0;
cmsMLUgetASCII(mlu, "PS", "#2", Buffer, 256);
if (strcmp(Buffer, "saturation") != 0) return 0;
cmsMLUgetASCII(mlu, "PS", "#3", Buffer, 256);
if (strcmp(Buffer, "absolute_colorimetric") != 0) return 0;
return 1;
default:
return 0;
}
}
static
cmsToneCurve *CreateSegmentedCurve(void)
{
cmsCurveSegment Seg[3];
cmsFloat32Number Sampled[2] = { 0, 1};
Seg[0].Type = 6;
Seg[0].Params[0] = 1;
Seg[0].Params[1] = 0;
Seg[0].Params[2] = 0;
Seg[0].Params[3] = 0;
Seg[0].x0 = -1E22F;
Seg[0].x1 = 0;
Seg[1].Type = 0;
Seg[1].nGridPoints = 2;
Seg[1].SampledPoints = Sampled;
Seg[1].x0 = 0;
Seg[1].x1 = 1;
Seg[2].Type = 6;
Seg[2].Params[0] = 1;
Seg[2].Params[1] = 0;
Seg[2].Params[2] = 0;
Seg[2].Params[3] = 0;
Seg[2].x0 = 1;
Seg[2].x1 = 1E22F;
return cmsBuildSegmentedToneCurve(DbgThread(), 3, Seg);
}
static
cmsInt32Number CheckMPE(cmsInt32Number Pass, cmsHPROFILE hProfile, cmsTagSignature tag)
{
cmsPipeline* Lut, *Pt;
cmsToneCurve* G[3];
cmsInt32Number rc;
switch (Pass) {
case 1:
Lut = cmsPipelineAlloc(DbgThread(), 3, 3);
cmsPipelineInsertStage(Lut, cmsAT_BEGIN, _cmsStageAllocLabV2ToV4(DbgThread()));
cmsPipelineInsertStage(Lut, cmsAT_END, _cmsStageAllocLabV4ToV2(DbgThread()));
AddIdentityCLUTfloat(Lut);
G[0] = G[1] = G[2] = CreateSegmentedCurve();
cmsPipelineInsertStage(Lut, cmsAT_END, cmsStageAllocToneCurves(DbgThread(), 3, G));
cmsFreeToneCurve(G[0]);
rc = cmsWriteTag(hProfile, tag, Lut);
cmsPipelineFree(Lut);
return rc;
case 2:
Pt = cmsReadTag(hProfile, tag);
if (Pt == NULL) return 0;
return CheckFloatLUT(Pt);
default:
return 0;
}
}
static
cmsInt32Number CheckScreening(cmsInt32Number Pass, cmsHPROFILE hProfile, cmsTagSignature tag)
{
cmsScreening *Pt, sc;
cmsInt32Number rc;
switch (Pass) {
case 1:
sc.Flag = 0;
sc.nChannels = 1;
sc.Channels[0].Frequency = 2.0;
sc.Channels[0].ScreenAngle = 3.0;
sc.Channels[0].SpotShape = cmsSPOT_ELLIPSE;
rc = cmsWriteTag(hProfile, tag, &sc);
return rc;
case 2:
Pt = cmsReadTag(hProfile, tag);
if (Pt == NULL) return 0;
if (Pt ->nChannels != 1) return 0;
if (Pt ->Flag != 0) return 0;
if (!IsGoodFixed15_16("Freq", Pt ->Channels[0].Frequency, 2.0)) return 0;
if (!IsGoodFixed15_16("Angle", Pt ->Channels[0].ScreenAngle, 3.0)) return 0;
if (Pt ->Channels[0].SpotShape != cmsSPOT_ELLIPSE) return 0;
return 1;
default:
return 0;
}
}
static
cmsBool CheckOneStr(cmsMLU* mlu, cmsInt32Number n)
{
char Buffer[256], Buffer2[256];
cmsMLUgetASCII(mlu, "en", "US", Buffer, 255);
sprintf(Buffer2, "Hello, world %d", n);
if (strcmp(Buffer, Buffer2) != 0) return FALSE;
cmsMLUgetASCII(mlu, "es", "ES", Buffer, 255);
sprintf(Buffer2, "Hola, mundo %d", n);
if (strcmp(Buffer, Buffer2) != 0) return FALSE;
return TRUE;
}
static
void SetOneStr(cmsMLU** mlu, wchar_t* s1, wchar_t* s2)
{
*mlu = cmsMLUalloc(DbgThread(), 0);
cmsMLUsetWide(*mlu, "en", "US", s1);
cmsMLUsetWide(*mlu, "es", "ES", s2);
}
static
cmsInt32Number CheckProfileSequenceTag(cmsInt32Number Pass, cmsHPROFILE hProfile)
{
cmsSEQ* s;
cmsInt32Number i;
switch (Pass) {
case 1:
s = cmsAllocProfileSequenceDescription(DbgThread(), 3);
if (s == NULL) return 0;
SetOneStr(&s -> seq[0].Manufacturer, L"Hello, world 0", L"Hola, mundo 0");
SetOneStr(&s -> seq[0].Model, L"Hello, world 0", L"Hola, mundo 0");
SetOneStr(&s -> seq[1].Manufacturer, L"Hello, world 1", L"Hola, mundo 1");
SetOneStr(&s -> seq[1].Model, L"Hello, world 1", L"Hola, mundo 1");
SetOneStr(&s -> seq[2].Manufacturer, L"Hello, world 2", L"Hola, mundo 2");
SetOneStr(&s -> seq[2].Model, L"Hello, world 2", L"Hola, mundo 2");
#ifdef CMS_DONT_USE_INT64
s ->seq[0].attributes[0] = cmsTransparency|cmsMatte;
s ->seq[0].attributes[1] = 0;
#else
s ->seq[0].attributes = cmsTransparency|cmsMatte;
#endif
#ifdef CMS_DONT_USE_INT64
s ->seq[1].attributes[0] = cmsReflective|cmsMatte;
s ->seq[1].attributes[1] = 0;
#else
s ->seq[1].attributes = cmsReflective|cmsMatte;
#endif
#ifdef CMS_DONT_USE_INT64
s ->seq[2].attributes[0] = cmsTransparency|cmsGlossy;
s ->seq[2].attributes[1] = 0;
#else
s ->seq[2].attributes = cmsTransparency|cmsGlossy;
#endif
if (!cmsWriteTag(hProfile, cmsSigProfileSequenceDescTag, s)) return 0;
cmsFreeProfileSequenceDescription(s);
return 1;
case 2:
s = cmsReadTag(hProfile, cmsSigProfileSequenceDescTag);
if (s == NULL) return 0;
if (s ->n != 3) return 0;
#ifdef CMS_DONT_USE_INT64
if (s ->seq[0].attributes[0] != (cmsTransparency|cmsMatte)) return 0;
if (s ->seq[0].attributes[1] != 0) return 0;
#else
if (s ->seq[0].attributes != (cmsTransparency|cmsMatte)) return 0;
#endif
#ifdef CMS_DONT_USE_INT64
if (s ->seq[1].attributes[0] != (cmsReflective|cmsMatte)) return 0;
if (s ->seq[1].attributes[1] != 0) return 0;
#else
if (s ->seq[1].attributes != (cmsReflective|cmsMatte)) return 0;
#endif
#ifdef CMS_DONT_USE_INT64
if (s ->seq[2].attributes[0] != (cmsTransparency|cmsGlossy)) return 0;
if (s ->seq[2].attributes[1] != 0) return 0;
#else
if (s ->seq[2].attributes != (cmsTransparency|cmsGlossy)) return 0;
#endif
// Check MLU
for (i=0; i < 3; i++) {
if (!CheckOneStr(s -> seq[i].Manufacturer, i)) return 0;
if (!CheckOneStr(s -> seq[i].Model, i)) return 0;
}
return 1;
default:
return 0;
}
}
static
cmsInt32Number CheckProfileSequenceIDTag(cmsInt32Number Pass, cmsHPROFILE hProfile)
{
cmsSEQ* s;
cmsInt32Number i;
switch (Pass) {
case 1:
s = cmsAllocProfileSequenceDescription(DbgThread(), 3);
if (s == NULL) return 0;
memcpy(s ->seq[0].ProfileID.ID8, "0123456789ABCDEF", 16);
memcpy(s ->seq[1].ProfileID.ID8, "1111111111111111", 16);
memcpy(s ->seq[2].ProfileID.ID8, "2222222222222222", 16);
SetOneStr(&s -> seq[0].Description, L"Hello, world 0", L"Hola, mundo 0");
SetOneStr(&s -> seq[1].Description, L"Hello, world 1", L"Hola, mundo 1");
SetOneStr(&s -> seq[2].Description, L"Hello, world 2", L"Hola, mundo 2");
if (!cmsWriteTag(hProfile, cmsSigProfileSequenceIdTag, s)) return 0;
cmsFreeProfileSequenceDescription(s);
return 1;
case 2:
s = cmsReadTag(hProfile, cmsSigProfileSequenceIdTag);
if (s == NULL) return 0;
if (s ->n != 3) return 0;
if (memcmp(s ->seq[0].ProfileID.ID8, "0123456789ABCDEF", 16) != 0) return 0;
if (memcmp(s ->seq[1].ProfileID.ID8, "1111111111111111", 16) != 0) return 0;
if (memcmp(s ->seq[2].ProfileID.ID8, "2222222222222222", 16) != 0) return 0;
for (i=0; i < 3; i++) {
if (!CheckOneStr(s -> seq[i].Description, i)) return 0;
}
return 1;
default:
return 0;
}
}
static
cmsInt32Number CheckICCViewingConditions(cmsInt32Number Pass, cmsHPROFILE hProfile)
{
cmsICCViewingConditions* v;
cmsICCViewingConditions s;
switch (Pass) {
case 1:
s.IlluminantType = 1;
s.IlluminantXYZ.X = 0.1;
s.IlluminantXYZ.Y = 0.2;
s.IlluminantXYZ.Z = 0.3;
s.SurroundXYZ.X = 0.4;
s.SurroundXYZ.Y = 0.5;
s.SurroundXYZ.Z = 0.6;
if (!cmsWriteTag(hProfile, cmsSigViewingConditionsTag, &s)) return 0;
return 1;
case 2:
v = cmsReadTag(hProfile, cmsSigViewingConditionsTag);
if (v == NULL) return 0;
if (v ->IlluminantType != 1) return 0;
if (!IsGoodVal("IlluminantXYZ.X", v ->IlluminantXYZ.X, 0.1, 0.001)) return 0;
if (!IsGoodVal("IlluminantXYZ.Y", v ->IlluminantXYZ.Y, 0.2, 0.001)) return 0;
if (!IsGoodVal("IlluminantXYZ.Z", v ->IlluminantXYZ.Z, 0.3, 0.001)) return 0;
if (!IsGoodVal("SurroundXYZ.X", v ->SurroundXYZ.X, 0.4, 0.001)) return 0;
if (!IsGoodVal("SurroundXYZ.Y", v ->SurroundXYZ.Y, 0.5, 0.001)) return 0;
if (!IsGoodVal("SurroundXYZ.Z", v ->SurroundXYZ.Z, 0.6, 0.001)) return 0;
return 1;
default:
return 0;
}
}
static
cmsInt32Number CheckVCGT(cmsInt32Number Pass, cmsHPROFILE hProfile)
{
cmsToneCurve* Curves[3];
cmsToneCurve** PtrCurve;
switch (Pass) {
case 1:
Curves[0] = cmsBuildGamma(DbgThread(), 1.1);
Curves[1] = cmsBuildGamma(DbgThread(), 2.2);
Curves[2] = cmsBuildGamma(DbgThread(), 3.4);
if (!cmsWriteTag(hProfile, cmsSigVcgtTag, Curves)) return 0;
cmsFreeToneCurveTriple(Curves);
return 1;
case 2:
PtrCurve = cmsReadTag(hProfile, cmsSigVcgtTag);
if (PtrCurve == NULL) return 0;
if (!IsGoodVal("VCGT R", cmsEstimateGamma(PtrCurve[0], 0.01), 1.1, 0.001)) return 0;
if (!IsGoodVal("VCGT G", cmsEstimateGamma(PtrCurve[1], 0.01), 2.2, 0.001)) return 0;
if (!IsGoodVal("VCGT B", cmsEstimateGamma(PtrCurve[2], 0.01), 3.4, 0.001)) return 0;
return 1;
default:;
}
return 0;
}
// Only one of the two following may be used, as they share the same tag
static
cmsInt32Number CheckDictionary16(cmsInt32Number Pass, cmsHPROFILE hProfile)
{
cmsHANDLE hDict;
const cmsDICTentry* e;
switch (Pass) {
case 1:
hDict = cmsDictAlloc(DbgThread());
cmsDictAddEntry(hDict, L"Name0", NULL, NULL, NULL);
cmsDictAddEntry(hDict, L"Name1", L"", NULL, NULL);
cmsDictAddEntry(hDict, L"Name", L"String", NULL, NULL);
cmsDictAddEntry(hDict, L"Name2", L"12", NULL, NULL);
if (!cmsWriteTag(hProfile, cmsSigMetaTag, hDict)) return 0;
cmsDictFree(hDict);
return 1;
case 2:
hDict = cmsReadTag(hProfile, cmsSigMetaTag);
if (hDict == NULL) return 0;
e = cmsDictGetEntryList(hDict);
if (memcmp(e ->Name, L"Name2", sizeof(wchar_t) * 5) != 0) return 0;
if (memcmp(e ->Value, L"12", sizeof(wchar_t) * 2) != 0) return 0;
e = cmsDictNextEntry(e);
if (memcmp(e ->Name, L"Name", sizeof(wchar_t) * 4) != 0) return 0;
if (memcmp(e ->Value, L"String", sizeof(wchar_t) * 5) != 0) return 0;
e = cmsDictNextEntry(e);
if (memcmp(e ->Name, L"Name1", sizeof(wchar_t) *5) != 0) return 0;
if (e ->Value == NULL) return 0;
if (*e->Value != 0) return 0;
e = cmsDictNextEntry(e);
if (memcmp(e ->Name, L"Name0", sizeof(wchar_t) * 5) != 0) return 0;
if (e ->Value != NULL) return 0;
return 1;
default:;
}
return 0;
}
static
cmsInt32Number CheckDictionary24(cmsInt32Number Pass, cmsHPROFILE hProfile)
{
cmsHANDLE hDict;
const cmsDICTentry* e;
cmsMLU* DisplayName;
char Buffer[256];
cmsInt32Number rc = 1;
switch (Pass) {
case 1:
hDict = cmsDictAlloc(DbgThread());
DisplayName = cmsMLUalloc(DbgThread(), 0);
cmsMLUsetWide(DisplayName, "en", "US", L"Hello, world");
cmsMLUsetWide(DisplayName, "es", "ES", L"Hola, mundo");
cmsMLUsetWide(DisplayName, "fr", "FR", L"Bonjour, le monde");
cmsMLUsetWide(DisplayName, "ca", "CA", L"Hola, mon");
cmsDictAddEntry(hDict, L"Name", L"String", DisplayName, NULL);
cmsMLUfree(DisplayName);
cmsDictAddEntry(hDict, L"Name2", L"12", NULL, NULL);
if (!cmsWriteTag(hProfile, cmsSigMetaTag, hDict)) return 0;
cmsDictFree(hDict);
return 1;
case 2:
hDict = cmsReadTag(hProfile, cmsSigMetaTag);
if (hDict == NULL) return 0;
e = cmsDictGetEntryList(hDict);
if (memcmp(e ->Name, L"Name2", sizeof(wchar_t) * 5) != 0) return 0;
if (memcmp(e ->Value, L"12", sizeof(wchar_t) * 2) != 0) return 0;
e = cmsDictNextEntry(e);
if (memcmp(e ->Name, L"Name", sizeof(wchar_t) * 4) != 0) return 0;
if (memcmp(e ->Value, L"String", sizeof(wchar_t) * 5) != 0) return 0;
cmsMLUgetASCII(e->DisplayName, "en", "US", Buffer, 256);
if (strcmp(Buffer, "Hello, world") != 0) rc = 0;
cmsMLUgetASCII(e->DisplayName, "es", "ES", Buffer, 256);
if (strcmp(Buffer, "Hola, mundo") != 0) rc = 0;
cmsMLUgetASCII(e->DisplayName, "fr", "FR", Buffer, 256);
if (strcmp(Buffer, "Bonjour, le monde") != 0) rc = 0;
cmsMLUgetASCII(e->DisplayName, "ca", "CA", Buffer, 256);
if (strcmp(Buffer, "Hola, mon") != 0) rc = 0;
if (rc == 0)
Fail("Unexpected string '%s'", Buffer);
return 1;
default:;
}
return 0;
}
static
cmsInt32Number CheckRAWtags(cmsInt32Number Pass, cmsHPROFILE hProfile)
{
char Buffer[7];
switch (Pass) {
case 1:
return cmsWriteRawTag(hProfile, 0x31323334, "data123", 7);
case 2:
if (!cmsReadRawTag(hProfile, 0x31323334, Buffer, 7)) return 0;
if (strncmp(Buffer, "data123", 7) != 0) return 0;
return 1;
default:
return 0;
}
}
// This is a very big test that checks every single tag
static
cmsInt32Number CheckProfileCreation(void)
{
cmsHPROFILE h;
cmsInt32Number Pass;
h = cmsCreateProfilePlaceholder(DbgThread());
if (h == NULL) return 0;
cmsSetProfileVersion(h, 4.3);
if (cmsGetTagCount(h) != 0) { Fail("Empty profile with nonzero number of tags"); return 0; }
if (cmsIsTag(h, cmsSigAToB0Tag)) { Fail("Found a tag in an empty profile"); return 0; }
cmsSetColorSpace(h, cmsSigRgbData);
if (cmsGetColorSpace(h) != cmsSigRgbData) { Fail("Unable to set colorspace"); return 0; }
cmsSetPCS(h, cmsSigLabData);
if (cmsGetPCS(h) != cmsSigLabData) { Fail("Unable to set colorspace"); return 0; }
cmsSetDeviceClass(h, cmsSigDisplayClass);
if (cmsGetDeviceClass(h) != cmsSigDisplayClass) { Fail("Unable to set deviceclass"); return 0; }
cmsSetHeaderRenderingIntent(h, INTENT_SATURATION);
if (cmsGetHeaderRenderingIntent(h) != INTENT_SATURATION) { Fail("Unable to set rendering intent"); return 0; }
for (Pass = 1; Pass <= 2; Pass++) {
SubTest("Tags holding XYZ");
if (!CheckXYZ(Pass, h, cmsSigBlueColorantTag)) return 0;
if (!CheckXYZ(Pass, h, cmsSigGreenColorantTag)) return 0;
if (!CheckXYZ(Pass, h, cmsSigRedColorantTag)) return 0;
if (!CheckXYZ(Pass, h, cmsSigMediaBlackPointTag)) return 0;
if (!CheckXYZ(Pass, h, cmsSigMediaWhitePointTag)) return 0;
if (!CheckXYZ(Pass, h, cmsSigLuminanceTag)) return 0;
SubTest("Tags holding curves");
if (!CheckGamma(Pass, h, cmsSigBlueTRCTag)) return 0;
if (!CheckGamma(Pass, h, cmsSigGrayTRCTag)) return 0;
if (!CheckGamma(Pass, h, cmsSigGreenTRCTag)) return 0;
if (!CheckGamma(Pass, h, cmsSigRedTRCTag)) return 0;
SubTest("Tags holding text");
if (!CheckText(Pass, h, cmsSigCharTargetTag)) return 0;
if (!CheckText(Pass, h, cmsSigCopyrightTag)) return 0;
if (!CheckText(Pass, h, cmsSigProfileDescriptionTag)) return 0;
if (!CheckText(Pass, h, cmsSigDeviceMfgDescTag)) return 0;
if (!CheckText(Pass, h, cmsSigDeviceModelDescTag)) return 0;
if (!CheckText(Pass, h, cmsSigViewingCondDescTag)) return 0;
if (!CheckText(Pass, h, cmsSigScreeningDescTag)) return 0;
SubTest("Tags holding cmsICCData");
if (!CheckData(Pass, h, cmsSigPs2CRD0Tag)) return 0;
if (!CheckData(Pass, h, cmsSigPs2CRD1Tag)) return 0;
if (!CheckData(Pass, h, cmsSigPs2CRD2Tag)) return 0;
if (!CheckData(Pass, h, cmsSigPs2CRD3Tag)) return 0;
if (!CheckData(Pass, h, cmsSigPs2CSATag)) return 0;
if (!CheckData(Pass, h, cmsSigPs2RenderingIntentTag)) return 0;
SubTest("Tags holding signatures");
if (!CheckSignature(Pass, h, cmsSigColorimetricIntentImageStateTag)) return 0;
if (!CheckSignature(Pass, h, cmsSigPerceptualRenderingIntentGamutTag)) return 0;
if (!CheckSignature(Pass, h, cmsSigSaturationRenderingIntentGamutTag)) return 0;
if (!CheckSignature(Pass, h, cmsSigTechnologyTag)) return 0;
SubTest("Tags holding date_time");
if (!CheckDateTime(Pass, h, cmsSigCalibrationDateTimeTag)) return 0;
if (!CheckDateTime(Pass, h, cmsSigDateTimeTag)) return 0;
SubTest("Tags holding named color lists");
if (!CheckNamedColor(Pass, h, cmsSigColorantTableTag, 15, FALSE)) return 0;
if (!CheckNamedColor(Pass, h, cmsSigColorantTableOutTag, 15, FALSE)) return 0;
if (!CheckNamedColor(Pass, h, cmsSigNamedColor2Tag, 4096, TRUE)) return 0;
SubTest("Tags holding LUTs");
if (!CheckLUT(Pass, h, cmsSigAToB0Tag)) return 0;
if (!CheckLUT(Pass, h, cmsSigAToB1Tag)) return 0;
if (!CheckLUT(Pass, h, cmsSigAToB2Tag)) return 0;
if (!CheckLUT(Pass, h, cmsSigBToA0Tag)) return 0;
if (!CheckLUT(Pass, h, cmsSigBToA1Tag)) return 0;
if (!CheckLUT(Pass, h, cmsSigBToA2Tag)) return 0;
if (!CheckLUT(Pass, h, cmsSigPreview0Tag)) return 0;
if (!CheckLUT(Pass, h, cmsSigPreview1Tag)) return 0;
if (!CheckLUT(Pass, h, cmsSigPreview2Tag)) return 0;
if (!CheckLUT(Pass, h, cmsSigGamutTag)) return 0;
SubTest("Tags holding CHAD");
if (!CheckCHAD(Pass, h, cmsSigChromaticAdaptationTag)) return 0;
SubTest("Tags holding Chromaticity");
if (!CheckChromaticity(Pass, h, cmsSigChromaticityTag)) return 0;
SubTest("Tags holding colorant order");
if (!CheckColorantOrder(Pass, h, cmsSigColorantOrderTag)) return 0;
SubTest("Tags holding measurement");
if (!CheckMeasurement(Pass, h, cmsSigMeasurementTag)) return 0;
SubTest("Tags holding CRD info");
if (!CheckCRDinfo(Pass, h, cmsSigCrdInfoTag)) return 0;
SubTest("Tags holding UCR/BG");
if (!CheckUcrBg(Pass, h, cmsSigUcrBgTag)) return 0;
SubTest("Tags holding MPE");
if (!CheckMPE(Pass, h, cmsSigDToB0Tag)) return 0;
if (!CheckMPE(Pass, h, cmsSigDToB1Tag)) return 0;
if (!CheckMPE(Pass, h, cmsSigDToB2Tag)) return 0;
if (!CheckMPE(Pass, h, cmsSigDToB3Tag)) return 0;
if (!CheckMPE(Pass, h, cmsSigBToD0Tag)) return 0;
if (!CheckMPE(Pass, h, cmsSigBToD1Tag)) return 0;
if (!CheckMPE(Pass, h, cmsSigBToD2Tag)) return 0;
if (!CheckMPE(Pass, h, cmsSigBToD3Tag)) return 0;
SubTest("Tags using screening");
if (!CheckScreening(Pass, h, cmsSigScreeningTag)) return 0;
SubTest("Tags holding profile sequence description");
if (!CheckProfileSequenceTag(Pass, h)) return 0;
if (!CheckProfileSequenceIDTag(Pass, h)) return 0;
SubTest("Tags holding ICC viewing conditions");
if (!CheckICCViewingConditions(Pass, h)) return 0;
SubTest("VCGT tags");
if (!CheckVCGT(Pass, h)) return 0;
SubTest("RAW tags");
if (!CheckRAWtags(Pass, h)) return 0;
SubTest("Dictionary meta tags");
// if (!CheckDictionary16(Pass, h)) return 0;
if (!CheckDictionary24(Pass, h)) return 0;
if (Pass == 1) {
cmsSaveProfileToFile(h, "alltags.icc");
cmsCloseProfile(h);
h = cmsOpenProfileFromFileTHR(DbgThread(), "alltags.icc", "r");
}
}
/*
Not implemented (by design):
cmsSigDataTag = 0x64617461, // 'data' -- Unused
cmsSigDeviceSettingsTag = 0x64657673, // 'devs' -- Unused
cmsSigNamedColorTag = 0x6E636f6C, // 'ncol' -- Don't use this one, deprecated by ICC
cmsSigOutputResponseTag = 0x72657370, // 'resp' -- Possible patent on this
*/
cmsCloseProfile(h);
remove("alltags.icc");
return 1;
}
// Error reporting -------------------------------------------------------------------------------------------------------
static
void ErrorReportingFunction(cmsContext ContextID, cmsUInt32Number ErrorCode, const char *Text)
{
TrappedError = TRUE;
SimultaneousErrors++;
strncpy(ReasonToFailBuffer, Text, TEXT_ERROR_BUFFER_SIZE-1);
cmsUNUSED_PARAMETER(ContextID);
cmsUNUSED_PARAMETER(ErrorCode);
}
static
cmsInt32Number CheckBadProfiles(void)
{
cmsHPROFILE h;
h = cmsOpenProfileFromFileTHR(DbgThread(), "IDoNotExist.icc", "r");
if (h != NULL) {
cmsCloseProfile(h);
return 0;
}
h = cmsOpenProfileFromFileTHR(DbgThread(), "IAmIllFormed*.icc", "r");
if (h != NULL) {
cmsCloseProfile(h);
return 0;
}
// No profile name given
h = cmsOpenProfileFromFileTHR(DbgThread(), "", "r");
if (h != NULL) {
cmsCloseProfile(h);
return 0;
}
h = cmsOpenProfileFromFileTHR(DbgThread(), "..", "r");
if (h != NULL) {
cmsCloseProfile(h);
return 0;
}
h = cmsOpenProfileFromFileTHR(DbgThread(), "IHaveBadAccessMode.icc", "@");
if (h != NULL) {
cmsCloseProfile(h);
return 0;
}
h = cmsOpenProfileFromFileTHR(DbgThread(), "bad.icc", "r");
if (h != NULL) {
cmsCloseProfile(h);
return 0;
}
h = cmsOpenProfileFromFileTHR(DbgThread(), "toosmall.icc", "r");
if (h != NULL) {
cmsCloseProfile(h);
return 0;
}
h = cmsOpenProfileFromMemTHR(DbgThread(), NULL, 3);
if (h != NULL) {
cmsCloseProfile(h);
return 0;
}
h = cmsOpenProfileFromMemTHR(DbgThread(), "123", 3);
if (h != NULL) {
cmsCloseProfile(h);
return 0;
}
if (SimultaneousErrors != 9) return 0;
return 1;
}
static
cmsInt32Number CheckErrReportingOnBadProfiles(void)
{
cmsInt32Number rc;
cmsSetLogErrorHandler(ErrorReportingFunction);
rc = CheckBadProfiles();
cmsSetLogErrorHandler(FatalErrorQuit);
// Reset the error state
TrappedError = FALSE;
return rc;
}
static
cmsInt32Number CheckBadTransforms(void)
{
cmsHPROFILE h1 = cmsCreate_sRGBProfile();
cmsHTRANSFORM x1;
x1 = cmsCreateTransform(NULL, 0, NULL, 0, 0, 0);
if (x1 != NULL) {
cmsDeleteTransform(x1);
return 0;
}
x1 = cmsCreateTransform(h1, TYPE_RGB_8, h1, TYPE_RGB_8, 12345, 0);
if (x1 != NULL) {
cmsDeleteTransform(x1);
return 0;
}
x1 = cmsCreateTransform(h1, TYPE_CMYK_8, h1, TYPE_RGB_8, 0, 0);
if (x1 != NULL) {
cmsDeleteTransform(x1);
return 0;
}
x1 = cmsCreateTransform(h1, TYPE_RGB_8, h1, TYPE_CMYK_8, 1, 0);
if (x1 != NULL) {
cmsDeleteTransform(x1);
return 0;
}
// sRGB does its output as XYZ!
x1 = cmsCreateTransform(h1, TYPE_RGB_8, NULL, TYPE_Lab_8, 1, 0);
if (x1 != NULL) {
cmsDeleteTransform(x1);
return 0;
}
cmsCloseProfile(h1);
{
cmsHPROFILE hp1 = cmsOpenProfileFromFile("test1.icc", "r");
cmsHPROFILE hp2 = cmsCreate_sRGBProfile();
x1 = cmsCreateTransform(hp1, TYPE_BGR_8, hp2, TYPE_BGR_8, INTENT_PERCEPTUAL, 0);
cmsCloseProfile(hp1); cmsCloseProfile(hp2);
if (x1 != NULL) {
cmsDeleteTransform(x1);
return 0;
}
}
return 1;
}
static
cmsInt32Number CheckErrReportingOnBadTransforms(void)
{
cmsInt32Number rc;
cmsSetLogErrorHandler(ErrorReportingFunction);
rc = CheckBadTransforms();
cmsSetLogErrorHandler(FatalErrorQuit);
// Reset the error state
TrappedError = FALSE;
return rc;
}
// ---------------------------------------------------------------------------------------------------------
// Check a linear xform
static
cmsInt32Number Check8linearXFORM(cmsHTRANSFORM xform, cmsInt32Number nChan)
{
cmsInt32Number n2, i, j;
cmsUInt8Number Inw[cmsMAXCHANNELS], Outw[cmsMAXCHANNELS];
n2=0;
for (j=0; j < 0xFF; j++) {
memset(Inw, j, sizeof(Inw));
cmsDoTransform(xform, Inw, Outw, 1);
for (i=0; i < nChan; i++) {
cmsInt32Number dif = abs(Outw[i] - j);
if (dif > n2) n2 = dif;
}
}
// We allow 2 contone of difference on 8 bits
if (n2 > 2) {
Fail("Differences too big (%x)", n2);
return 0;
}
return 1;
}
static
cmsInt32Number Compare8bitXFORM(cmsHTRANSFORM xform1, cmsHTRANSFORM xform2, cmsInt32Number nChan)
{
cmsInt32Number n2, i, j;
cmsUInt8Number Inw[cmsMAXCHANNELS], Outw1[cmsMAXCHANNELS], Outw2[cmsMAXCHANNELS];;
n2=0;
for (j=0; j < 0xFF; j++) {
memset(Inw, j, sizeof(Inw));
cmsDoTransform(xform1, Inw, Outw1, 1);
cmsDoTransform(xform2, Inw, Outw2, 1);
for (i=0; i < nChan; i++) {
cmsInt32Number dif = abs(Outw2[i] - Outw1[i]);
if (dif > n2) n2 = dif;
}
}
// We allow 2 contone of difference on 8 bits
if (n2 > 2) {
Fail("Differences too big (%x)", n2);
return 0;
}
return 1;
}
// Check a linear xform
static
cmsInt32Number Check16linearXFORM(cmsHTRANSFORM xform, cmsInt32Number nChan)
{
cmsInt32Number n2, i, j;
cmsUInt16Number Inw[cmsMAXCHANNELS], Outw[cmsMAXCHANNELS];
n2=0;
for (j=0; j < 0xFFFF; j++) {
for (i=0; i < nChan; i++) Inw[i] = (cmsUInt16Number) j;
cmsDoTransform(xform, Inw, Outw, 1);
for (i=0; i < nChan; i++) {
cmsInt32Number dif = abs(Outw[i] - j);
if (dif > n2) n2 = dif;
}
// We allow 2 contone of difference on 16 bits
if (n2 > 0x200) {
Fail("Differences too big (%x)", n2);
return 0;
}
}
return 1;
}
static
cmsInt32Number Compare16bitXFORM(cmsHTRANSFORM xform1, cmsHTRANSFORM xform2, cmsInt32Number nChan)
{
cmsInt32Number n2, i, j;
cmsUInt16Number Inw[cmsMAXCHANNELS], Outw1[cmsMAXCHANNELS], Outw2[cmsMAXCHANNELS];;
n2=0;
for (j=0; j < 0xFFFF; j++) {
for (i=0; i < nChan; i++) Inw[i] = (cmsUInt16Number) j;
cmsDoTransform(xform1, Inw, Outw1, 1);
cmsDoTransform(xform2, Inw, Outw2, 1);
for (i=0; i < nChan; i++) {
cmsInt32Number dif = abs(Outw2[i] - Outw1[i]);
if (dif > n2) n2 = dif;
}
}
// We allow 2 contone of difference on 16 bits
if (n2 > 0x200) {
Fail("Differences too big (%x)", n2);
return 0;
}
return 1;
}
// Check a linear xform
static
cmsInt32Number CheckFloatlinearXFORM(cmsHTRANSFORM xform, cmsInt32Number nChan)
{
cmsInt32Number i, j;
cmsFloat32Number In[cmsMAXCHANNELS], Out[cmsMAXCHANNELS];
for (j=0; j < 0xFFFF; j++) {
for (i=0; i < nChan; i++) In[i] = (cmsFloat32Number) (j / 65535.0);;
cmsDoTransform(xform, In, Out, 1);
for (i=0; i < nChan; i++) {
// We allow no difference in floating point
if (!IsGoodFixed15_16("linear xform cmsFloat32Number", Out[i], (cmsFloat32Number) (j / 65535.0)))
return 0;
}
}
return 1;
}
// Check a linear xform
static
cmsInt32Number CompareFloatXFORM(cmsHTRANSFORM xform1, cmsHTRANSFORM xform2, cmsInt32Number nChan)
{
cmsInt32Number i, j;
cmsFloat32Number In[cmsMAXCHANNELS], Out1[cmsMAXCHANNELS], Out2[cmsMAXCHANNELS];
for (j=0; j < 0xFFFF; j++) {
for (i=0; i < nChan; i++) In[i] = (cmsFloat32Number) (j / 65535.0);;
cmsDoTransform(xform1, In, Out1, 1);
cmsDoTransform(xform2, In, Out2, 1);
for (i=0; i < nChan; i++) {
// We allow no difference in floating point
if (!IsGoodFixed15_16("linear xform cmsFloat32Number", Out1[i], Out2[i]))
return 0;
}
}
return 1;
}
// Curves only transforms ----------------------------------------------------------------------------------------
static
cmsInt32Number CheckCurvesOnlyTransforms(void)
{
cmsHTRANSFORM xform1, xform2;
cmsHPROFILE h1, h2, h3;
cmsToneCurve* c1, *c2, *c3;
cmsInt32Number rc = 1;
c1 = cmsBuildGamma(DbgThread(), 2.2);
c2 = cmsBuildGamma(DbgThread(), 1/2.2);
c3 = cmsBuildGamma(DbgThread(), 4.84);
h1 = cmsCreateLinearizationDeviceLinkTHR(DbgThread(), cmsSigGrayData, &c1);
h2 = cmsCreateLinearizationDeviceLinkTHR(DbgThread(), cmsSigGrayData, &c2);
h3 = cmsCreateLinearizationDeviceLinkTHR(DbgThread(), cmsSigGrayData, &c3);
SubTest("Gray float optimizeable transform");
xform1 = cmsCreateTransform(h1, TYPE_GRAY_FLT, h2, TYPE_GRAY_FLT, INTENT_PERCEPTUAL, 0);
rc &= CheckFloatlinearXFORM(xform1, 1);
cmsDeleteTransform(xform1);
if (rc == 0) goto Error;
SubTest("Gray 8 optimizeable transform");
xform1 = cmsCreateTransform(h1, TYPE_GRAY_8, h2, TYPE_GRAY_8, INTENT_PERCEPTUAL, 0);
rc &= Check8linearXFORM(xform1, 1);
cmsDeleteTransform(xform1);
if (rc == 0) goto Error;
SubTest("Gray 16 optimizeable transform");
xform1 = cmsCreateTransform(h1, TYPE_GRAY_16, h2, TYPE_GRAY_16, INTENT_PERCEPTUAL, 0);
rc &= Check16linearXFORM(xform1, 1);
cmsDeleteTransform(xform1);
if (rc == 0) goto Error;
SubTest("Gray float non-optimizeable transform");
xform1 = cmsCreateTransform(h1, TYPE_GRAY_FLT, h1, TYPE_GRAY_FLT, INTENT_PERCEPTUAL, 0);
xform2 = cmsCreateTransform(h3, TYPE_GRAY_FLT, NULL, TYPE_GRAY_FLT, INTENT_PERCEPTUAL, 0);
rc &= CompareFloatXFORM(xform1, xform2, 1);
cmsDeleteTransform(xform1);
cmsDeleteTransform(xform2);
if (rc == 0) goto Error;
SubTest("Gray 8 non-optimizeable transform");
xform1 = cmsCreateTransform(h1, TYPE_GRAY_8, h1, TYPE_GRAY_8, INTENT_PERCEPTUAL, 0);
xform2 = cmsCreateTransform(h3, TYPE_GRAY_8, NULL, TYPE_GRAY_8, INTENT_PERCEPTUAL, 0);
rc &= Compare8bitXFORM(xform1, xform2, 1);
cmsDeleteTransform(xform1);
cmsDeleteTransform(xform2);
if (rc == 0) goto Error;
SubTest("Gray 16 non-optimizeable transform");
xform1 = cmsCreateTransform(h1, TYPE_GRAY_16, h1, TYPE_GRAY_16, INTENT_PERCEPTUAL, 0);
xform2 = cmsCreateTransform(h3, TYPE_GRAY_16, NULL, TYPE_GRAY_16, INTENT_PERCEPTUAL, 0);
rc &= Compare16bitXFORM(xform1, xform2, 1);
cmsDeleteTransform(xform1);
cmsDeleteTransform(xform2);
if (rc == 0) goto Error;
Error:
cmsCloseProfile(h1); cmsCloseProfile(h2); cmsCloseProfile(h3);
cmsFreeToneCurve(c1); cmsFreeToneCurve(c2); cmsFreeToneCurve(c3);
return rc;
}
// Lab to Lab trivial transforms ----------------------------------------------------------------------------------------
static cmsFloat64Number MaxDE;
static
cmsInt32Number CheckOneLab(cmsHTRANSFORM xform, cmsFloat64Number L, cmsFloat64Number a, cmsFloat64Number b)
{
cmsCIELab In, Out;
cmsFloat64Number dE;
In.L = L; In.a = a; In.b = b;
cmsDoTransform(xform, &In, &Out, 1);
dE = cmsDeltaE(&In, &Out);
if (dE > MaxDE) MaxDE = dE;
if (MaxDE > 0.003) {
Fail("dE=%f Lab1=(%f, %f, %f)\n\tLab2=(%f %f %f)", MaxDE, In.L, In.a, In.b, Out.L, Out.a, Out.b);
cmsDoTransform(xform, &In, &Out, 1);
return 0;
}
return 1;
}
// Check several Lab, slicing at non-exact values. Precision should be 16 bits. 50x50x50 checks aprox.
static
cmsInt32Number CheckSeveralLab(cmsHTRANSFORM xform)
{
cmsInt32Number L, a, b;
MaxDE = 0;
for (L=0; L < 65536; L += 1311) {
for (a = 0; a < 65536; a += 1232) {
for (b = 0; b < 65536; b += 1111) {
if (!CheckOneLab(xform, (L * 100.0) / 65535.0,
(a / 257.0) - 128, (b / 257.0) - 128))
return 0;
}
}
}
return 1;
}
static
cmsInt32Number OneTrivialLab(cmsHPROFILE hLab1, cmsHPROFILE hLab2, const char* txt)
{
cmsHTRANSFORM xform;
cmsInt32Number rc;
SubTest(txt);
xform = cmsCreateTransformTHR(DbgThread(), hLab1, TYPE_Lab_DBL, hLab2, TYPE_Lab_DBL, INTENT_RELATIVE_COLORIMETRIC, 0);
cmsCloseProfile(hLab1); cmsCloseProfile(hLab2);
rc = CheckSeveralLab(xform);
cmsDeleteTransform(xform);
return rc;
}
static
cmsInt32Number CheckFloatLabTransforms(void)
{
return OneTrivialLab(cmsCreateLab4ProfileTHR(DbgThread(), NULL), cmsCreateLab4ProfileTHR(DbgThread(), NULL), "Lab4/Lab4") &&
OneTrivialLab(cmsCreateLab2ProfileTHR(DbgThread(), NULL), cmsCreateLab2ProfileTHR(DbgThread(), NULL), "Lab2/Lab2") &&
OneTrivialLab(cmsCreateLab4ProfileTHR(DbgThread(), NULL), cmsCreateLab2ProfileTHR(DbgThread(), NULL), "Lab4/Lab2") &&
OneTrivialLab(cmsCreateLab2ProfileTHR(DbgThread(), NULL), cmsCreateLab4ProfileTHR(DbgThread(), NULL), "Lab2/Lab4");
}
static
cmsInt32Number CheckEncodedLabTransforms(void)
{
cmsHTRANSFORM xform;
cmsUInt16Number In[3];
cmsCIELab Lab;
cmsCIELab White = { 100, 0, 0 };
cmsHPROFILE hLab1 = cmsCreateLab4ProfileTHR(DbgThread(), NULL);
cmsHPROFILE hLab2 = cmsCreateLab4ProfileTHR(DbgThread(), NULL);
xform = cmsCreateTransformTHR(DbgThread(), hLab1, TYPE_Lab_16, hLab2, TYPE_Lab_DBL, INTENT_RELATIVE_COLORIMETRIC, 0);
cmsCloseProfile(hLab1); cmsCloseProfile(hLab2);
In[0] = 0xFFFF;
In[1] = 0x8080;
In[2] = 0x8080;
cmsDoTransform(xform, In, &Lab, 1);
if (cmsDeltaE(&Lab, &White) > 0.0001) return 0;
cmsDeleteTransform(xform);
hLab1 = cmsCreateLab2ProfileTHR(DbgThread(), NULL);
hLab2 = cmsCreateLab4ProfileTHR(DbgThread(), NULL);
xform = cmsCreateTransformTHR(DbgThread(), hLab1, TYPE_LabV2_16, hLab2, TYPE_Lab_DBL, INTENT_RELATIVE_COLORIMETRIC, 0);
cmsCloseProfile(hLab1); cmsCloseProfile(hLab2);
In[0] = 0xFF00;
In[1] = 0x8000;
In[2] = 0x8000;
cmsDoTransform(xform, In, &Lab, 1);
if (cmsDeltaE(&Lab, &White) > 0.0001) return 0;
cmsDeleteTransform(xform);
hLab2 = cmsCreateLab2ProfileTHR(DbgThread(), NULL);
hLab1 = cmsCreateLab4ProfileTHR(DbgThread(), NULL);
xform = cmsCreateTransformTHR(DbgThread(), hLab1, TYPE_Lab_DBL, hLab2, TYPE_LabV2_16, INTENT_RELATIVE_COLORIMETRIC, 0);
cmsCloseProfile(hLab1); cmsCloseProfile(hLab2);
Lab.L = 100;
Lab.a = 0;
Lab.b = 0;
cmsDoTransform(xform, &Lab, In, 1);
if (In[0] != 0xFF00 ||
In[1] != 0x8000 ||
In[2] != 0x8000) return 0;
cmsDeleteTransform(xform);
hLab1 = cmsCreateLab4ProfileTHR(DbgThread(), NULL);
hLab2 = cmsCreateLab4ProfileTHR(DbgThread(), NULL);
xform = cmsCreateTransformTHR(DbgThread(), hLab1, TYPE_Lab_DBL, hLab2, TYPE_Lab_16, INTENT_RELATIVE_COLORIMETRIC, 0);
cmsCloseProfile(hLab1); cmsCloseProfile(hLab2);
Lab.L = 100;
Lab.a = 0;
Lab.b = 0;
cmsDoTransform(xform, &Lab, In, 1);
if (In[0] != 0xFFFF ||
In[1] != 0x8080 ||
In[2] != 0x8080) return 0;
cmsDeleteTransform(xform);
return 1;
}
static
cmsInt32Number CheckStoredIdentities(void)
{
cmsHPROFILE hLab, hLink, h4, h2;
cmsHTRANSFORM xform;
cmsInt32Number rc = 1;
hLab = cmsCreateLab4ProfileTHR(DbgThread(), NULL);
xform = cmsCreateTransformTHR(DbgThread(), hLab, TYPE_Lab_8, hLab, TYPE_Lab_8, 0, 0);
hLink = cmsTransform2DeviceLink(xform, 3.4, 0);
cmsSaveProfileToFile(hLink, "abstractv2.icc");
cmsCloseProfile(hLink);
hLink = cmsTransform2DeviceLink(xform, 4.3, 0);
cmsSaveProfileToFile(hLink, "abstractv4.icc");
cmsCloseProfile(hLink);
cmsDeleteTransform(xform);
cmsCloseProfile(hLab);
h4 = cmsOpenProfileFromFileTHR(DbgThread(), "abstractv4.icc", "r");
xform = cmsCreateTransformTHR(DbgThread(), h4, TYPE_Lab_DBL, h4, TYPE_Lab_DBL, INTENT_RELATIVE_COLORIMETRIC, 0);
SubTest("V4");
rc &= CheckSeveralLab(xform);
cmsDeleteTransform(xform);
cmsCloseProfile(h4);
if (!rc) goto Error;
SubTest("V2");
h2 = cmsOpenProfileFromFileTHR(DbgThread(), "abstractv2.icc", "r");
xform = cmsCreateTransformTHR(DbgThread(), h2, TYPE_Lab_DBL, h2, TYPE_Lab_DBL, INTENT_RELATIVE_COLORIMETRIC, 0);
rc &= CheckSeveralLab(xform);
cmsDeleteTransform(xform);
cmsCloseProfile(h2);
if (!rc) goto Error;
SubTest("V2 -> V4");
h2 = cmsOpenProfileFromFileTHR(DbgThread(), "abstractv2.icc", "r");
h4 = cmsOpenProfileFromFileTHR(DbgThread(), "abstractv4.icc", "r");
xform = cmsCreateTransformTHR(DbgThread(), h4, TYPE_Lab_DBL, h2, TYPE_Lab_DBL, INTENT_RELATIVE_COLORIMETRIC, 0);
rc &= CheckSeveralLab(xform);
cmsDeleteTransform(xform);
cmsCloseProfile(h2);
cmsCloseProfile(h4);
SubTest("V4 -> V2");
h2 = cmsOpenProfileFromFileTHR(DbgThread(), "abstractv2.icc", "r");
h4 = cmsOpenProfileFromFileTHR(DbgThread(), "abstractv4.icc", "r");
xform = cmsCreateTransformTHR(DbgThread(), h2, TYPE_Lab_DBL, h4, TYPE_Lab_DBL, INTENT_RELATIVE_COLORIMETRIC, 0);
rc &= CheckSeveralLab(xform);
cmsDeleteTransform(xform);
cmsCloseProfile(h2);
cmsCloseProfile(h4);
Error:
remove("abstractv2.icc");
remove("abstractv4.icc");
return rc;
}
// Check a simple xform from a matrix profile to itself. Test floating point accuracy.
static
cmsInt32Number CheckMatrixShaperXFORMFloat(void)
{
cmsHPROFILE hAbove, hSRGB;
cmsHTRANSFORM xform;
cmsInt32Number rc1, rc2;
hAbove = Create_AboveRGB();
xform = cmsCreateTransformTHR(DbgThread(), hAbove, TYPE_RGB_FLT, hAbove, TYPE_RGB_FLT, INTENT_RELATIVE_COLORIMETRIC, 0);
cmsCloseProfile(hAbove);
rc1 = CheckFloatlinearXFORM(xform, 3);
cmsDeleteTransform(xform);
hSRGB = cmsCreate_sRGBProfileTHR(DbgThread());
xform = cmsCreateTransformTHR(DbgThread(), hSRGB, TYPE_RGB_FLT, hSRGB, TYPE_RGB_FLT, INTENT_RELATIVE_COLORIMETRIC, 0);
cmsCloseProfile(hSRGB);
rc2 = CheckFloatlinearXFORM(xform, 3);
cmsDeleteTransform(xform);
return rc1 && rc2;
}
// Check a simple xform from a matrix profile to itself. Test 16 bits accuracy.
static
cmsInt32Number CheckMatrixShaperXFORM16(void)
{
cmsHPROFILE hAbove, hSRGB;
cmsHTRANSFORM xform;
cmsInt32Number rc1, rc2;
hAbove = Create_AboveRGB();
xform = cmsCreateTransformTHR(DbgThread(), hAbove, TYPE_RGB_16, hAbove, TYPE_RGB_16, INTENT_RELATIVE_COLORIMETRIC, 0);
cmsCloseProfile(hAbove);
rc1 = Check16linearXFORM(xform, 3);
cmsDeleteTransform(xform);
hSRGB = cmsCreate_sRGBProfileTHR(DbgThread());
xform = cmsCreateTransformTHR(DbgThread(), hSRGB, TYPE_RGB_16, hSRGB, TYPE_RGB_16, INTENT_RELATIVE_COLORIMETRIC, 0);
cmsCloseProfile(hSRGB);
rc2 = Check16linearXFORM(xform, 3);
cmsDeleteTransform(xform);
return rc1 && rc2;
}
// Check a simple xform from a matrix profile to itself. Test 8 bits accuracy.
static
cmsInt32Number CheckMatrixShaperXFORM8(void)
{
cmsHPROFILE hAbove, hSRGB;
cmsHTRANSFORM xform;
cmsInt32Number rc1, rc2;
hAbove = Create_AboveRGB();
xform = cmsCreateTransformTHR(DbgThread(), hAbove, TYPE_RGB_8, hAbove, TYPE_RGB_8, INTENT_RELATIVE_COLORIMETRIC, 0);
cmsCloseProfile(hAbove);
rc1 = Check8linearXFORM(xform, 3);
cmsDeleteTransform(xform);
hSRGB = cmsCreate_sRGBProfileTHR(DbgThread());
xform = cmsCreateTransformTHR(DbgThread(), hSRGB, TYPE_RGB_8, hSRGB, TYPE_RGB_8, INTENT_RELATIVE_COLORIMETRIC, 0);
cmsCloseProfile(hSRGB);
rc2 = Check8linearXFORM(xform, 3);
cmsDeleteTransform(xform);
return rc1 && rc2;
}
// TODO: Check LUT based to LUT based transforms for CMYK
// -----------------------------------------------------------------------------------------------------------------
// Check known values going from sRGB to XYZ
static
cmsInt32Number CheckOneRGB_f(cmsHTRANSFORM xform, cmsInt32Number R, cmsInt32Number G, cmsInt32Number B, cmsFloat64Number X, cmsFloat64Number Y, cmsFloat64Number Z, cmsFloat64Number err)
{
cmsFloat32Number RGB[3];
cmsFloat64Number Out[3];
RGB[0] = (cmsFloat32Number) (R / 255.0);
RGB[1] = (cmsFloat32Number) (G / 255.0);
RGB[2] = (cmsFloat32Number) (B / 255.0);
cmsDoTransform(xform, RGB, Out, 1);
return IsGoodVal("X", X , Out[0], err) &&
IsGoodVal("Y", Y , Out[1], err) &&
IsGoodVal("Z", Z , Out[2], err);
}
static
cmsInt32Number Chack_sRGB_Float(void)
{
cmsHPROFILE hsRGB, hXYZ, hLab;
cmsHTRANSFORM xform1, xform2;
cmsInt32Number rc;
hsRGB = cmsCreate_sRGBProfileTHR(DbgThread());
hXYZ = cmsCreateXYZProfileTHR(DbgThread());
hLab = cmsCreateLab4ProfileTHR(DbgThread(), NULL);
xform1 = cmsCreateTransformTHR(DbgThread(), hsRGB, TYPE_RGB_FLT, hXYZ, TYPE_XYZ_DBL,
INTENT_RELATIVE_COLORIMETRIC, 0);
xform2 = cmsCreateTransformTHR(DbgThread(), hsRGB, TYPE_RGB_FLT, hLab, TYPE_Lab_DBL,
INTENT_RELATIVE_COLORIMETRIC, 0);
cmsCloseProfile(hsRGB);
cmsCloseProfile(hXYZ);
cmsCloseProfile(hLab);
MaxErr = 0;
// Xform 1 goes from 8 bits to XYZ,
rc = CheckOneRGB_f(xform1, 1, 1, 1, 0.0002926, 0.00030352, 0.00025037, 0.0001);
rc &= CheckOneRGB_f(xform1, 127, 127, 127, 0.2046329, 0.212230, 0.175069, 0.0001);
rc &= CheckOneRGB_f(xform1, 12, 13, 15, 0.0038364, 0.0039928, 0.00385212, 0.0001);
rc &= CheckOneRGB_f(xform1, 128, 0, 0, 0.0940846, 0.0480030, 0.00300543, 0.0001);
rc &= CheckOneRGB_f(xform1, 190, 25, 210, 0.3203491, 0.1605240, 0.46817115, 0.0001);
// Xform 2 goes from 8 bits to Lab, we allow 0.01 error max
rc &= CheckOneRGB_f(xform2, 1, 1, 1, 0.2741748, 0, 0, 0.01);
rc &= CheckOneRGB_f(xform2, 127, 127, 127, 53.192776, 0, 0, 0.01);
rc &= CheckOneRGB_f(xform2, 190, 25, 210, 47.043171, 74.564576, -56.89373, 0.01);
rc &= CheckOneRGB_f(xform2, 128, 0, 0, 26.158100, 48.474477, 39.425916, 0.01);
cmsDeleteTransform(xform1);
cmsDeleteTransform(xform2);
return rc;
}
// ---------------------------------------------------
static
cmsBool GetProfileRGBPrimaries(cmsHPROFILE hProfile,
cmsCIEXYZTRIPLE *result,
cmsUInt32Number intent)
{
cmsHPROFILE hXYZ;
cmsHTRANSFORM hTransform;
cmsFloat64Number rgb[3][3] = {{1., 0., 0.},
{0., 1., 0.},
{0., 0., 1.}};
hXYZ = cmsCreateXYZProfile();
if (hXYZ == NULL) return FALSE;
hTransform = cmsCreateTransform(hProfile, TYPE_RGB_DBL, hXYZ, TYPE_XYZ_DBL,
intent, cmsFLAGS_NOCACHE | cmsFLAGS_NOOPTIMIZE);
cmsCloseProfile(hXYZ);
if (hTransform == NULL) return FALSE;
cmsDoTransform(hTransform, rgb, result, 3);
cmsDeleteTransform(hTransform);
return TRUE;
}
static
int CheckRGBPrimaries(void)
{
cmsHPROFILE hsRGB;
cmsCIEXYZTRIPLE tripXYZ;
cmsCIExyYTRIPLE tripxyY;
cmsBool result;
cmsSetAdaptationState(0);
hsRGB = cmsCreate_sRGBProfileTHR(DbgThread());
if (!hsRGB) return 0;
result = GetProfileRGBPrimaries(hsRGB, &tripXYZ,
INTENT_ABSOLUTE_COLORIMETRIC);
cmsCloseProfile(hsRGB);
if (!result) return 0;
cmsXYZ2xyY(&tripxyY.Red, &tripXYZ.Red);
cmsXYZ2xyY(&tripxyY.Green, &tripXYZ.Green);
cmsXYZ2xyY(&tripxyY.Blue, &tripXYZ.Blue);
/* valus were taken from
http://en.wikipedia.org/wiki/RGB_color_spaces#Specifications */
if (!IsGoodFixed15_16("xRed", tripxyY.Red.x, 0.64) ||
!IsGoodFixed15_16("yRed", tripxyY.Red.y, 0.33) ||
!IsGoodFixed15_16("xGreen", tripxyY.Green.x, 0.30) ||
!IsGoodFixed15_16("yGreen", tripxyY.Green.y, 0.60) ||
!IsGoodFixed15_16("xBlue", tripxyY.Blue.x, 0.15) ||
!IsGoodFixed15_16("yBlue", tripxyY.Blue.y, 0.06)) {
Fail("One or more primaries are wrong.");
return FALSE;
}
return TRUE;
}
// -----------------------------------------------------------------------------------------------------------------
// This function will check CMYK -> CMYK transforms. It uses FOGRA29 and SWOP ICC profiles
static
cmsInt32Number CheckCMYK(cmsInt32Number Intent, const char *Profile1, const char* Profile2)
{
cmsHPROFILE hSWOP = cmsOpenProfileFromFileTHR(DbgThread(), Profile1, "r");
cmsHPROFILE hFOGRA = cmsOpenProfileFromFileTHR(DbgThread(), Profile2, "r");
cmsHTRANSFORM xform, swop_lab, fogra_lab;
cmsFloat32Number CMYK1[4], CMYK2[4];
cmsCIELab Lab1, Lab2;
cmsHPROFILE hLab;
cmsFloat64Number DeltaL, Max;
cmsInt32Number i;
hLab = cmsCreateLab4ProfileTHR(DbgThread(), NULL);
xform = cmsCreateTransformTHR(DbgThread(), hSWOP, TYPE_CMYK_FLT, hFOGRA, TYPE_CMYK_FLT, Intent, 0);
swop_lab = cmsCreateTransformTHR(DbgThread(), hSWOP, TYPE_CMYK_FLT, hLab, TYPE_Lab_DBL, Intent, 0);
fogra_lab = cmsCreateTransformTHR(DbgThread(), hFOGRA, TYPE_CMYK_FLT, hLab, TYPE_Lab_DBL, Intent, 0);
Max = 0;
for (i=0; i <= 100; i++) {
CMYK1[0] = 10;
CMYK1[1] = 20;
CMYK1[2] = 30;
CMYK1[3] = (cmsFloat32Number) i;
cmsDoTransform(swop_lab, CMYK1, &Lab1, 1);
cmsDoTransform(xform, CMYK1, CMYK2, 1);
cmsDoTransform(fogra_lab, CMYK2, &Lab2, 1);
DeltaL = fabs(Lab1.L - Lab2.L);
if (DeltaL > Max) Max = DeltaL;
}
cmsDeleteTransform(xform);
if (Max > 3.0) return 0;
xform = cmsCreateTransformTHR(DbgThread(), hFOGRA, TYPE_CMYK_FLT, hSWOP, TYPE_CMYK_FLT, Intent, 0);
Max = 0;
for (i=0; i <= 100; i++) {
CMYK1[0] = 10;
CMYK1[1] = 20;
CMYK1[2] = 30;
CMYK1[3] = (cmsFloat32Number) i;
cmsDoTransform(fogra_lab, CMYK1, &Lab1, 1);
cmsDoTransform(xform, CMYK1, CMYK2, 1);
cmsDoTransform(swop_lab, CMYK2, &Lab2, 1);
DeltaL = fabs(Lab1.L - Lab2.L);
if (DeltaL > Max) Max = DeltaL;
}
cmsCloseProfile(hSWOP);
cmsCloseProfile(hFOGRA);
cmsCloseProfile(hLab);
cmsDeleteTransform(xform);
cmsDeleteTransform(swop_lab);
cmsDeleteTransform(fogra_lab);
return Max < 3.0;
}
static
cmsInt32Number CheckCMYKRoundtrip(void)
{
return CheckCMYK(INTENT_RELATIVE_COLORIMETRIC, "test1.icc", "test1.icc");
}
static
cmsInt32Number CheckCMYKPerceptual(void)
{
return CheckCMYK(INTENT_PERCEPTUAL, "test1.icc", "test2.icc");
}
static
cmsInt32Number CheckCMYKRelCol(void)
{
return CheckCMYK(INTENT_RELATIVE_COLORIMETRIC, "test1.icc", "test2.icc");
}
static
cmsInt32Number CheckKOnlyBlackPreserving(void)
{
cmsHPROFILE hSWOP = cmsOpenProfileFromFileTHR(DbgThread(), "test1.icc", "r");
cmsHPROFILE hFOGRA = cmsOpenProfileFromFileTHR(DbgThread(), "test2.icc", "r");
cmsHTRANSFORM xform, swop_lab, fogra_lab;
cmsFloat32Number CMYK1[4], CMYK2[4];
cmsCIELab Lab1, Lab2;
cmsHPROFILE hLab;
cmsFloat64Number DeltaL, Max;
cmsInt32Number i;
hLab = cmsCreateLab4ProfileTHR(DbgThread(), NULL);
xform = cmsCreateTransformTHR(DbgThread(), hSWOP, TYPE_CMYK_FLT, hFOGRA, TYPE_CMYK_FLT, INTENT_PRESERVE_K_ONLY_PERCEPTUAL, 0);
swop_lab = cmsCreateTransformTHR(DbgThread(), hSWOP, TYPE_CMYK_FLT, hLab, TYPE_Lab_DBL, INTENT_PERCEPTUAL, 0);
fogra_lab = cmsCreateTransformTHR(DbgThread(), hFOGRA, TYPE_CMYK_FLT, hLab, TYPE_Lab_DBL, INTENT_PERCEPTUAL, 0);
Max = 0;
for (i=0; i <= 100; i++) {
CMYK1[0] = 0;
CMYK1[1] = 0;
CMYK1[2] = 0;
CMYK1[3] = (cmsFloat32Number) i;
// SWOP CMYK to Lab1
cmsDoTransform(swop_lab, CMYK1, &Lab1, 1);
// SWOP To FOGRA using black preservation
cmsDoTransform(xform, CMYK1, CMYK2, 1);
// Obtained FOGRA CMYK to Lab2
cmsDoTransform(fogra_lab, CMYK2, &Lab2, 1);
// We care only on L*
DeltaL = fabs(Lab1.L - Lab2.L);
if (DeltaL > Max) Max = DeltaL;
}
cmsDeleteTransform(xform);
// dL should be below 3.0
if (Max > 3.0) return 0;
// Same, but FOGRA to SWOP
xform = cmsCreateTransformTHR(DbgThread(), hFOGRA, TYPE_CMYK_FLT, hSWOP, TYPE_CMYK_FLT, INTENT_PRESERVE_K_ONLY_PERCEPTUAL, 0);
Max = 0;
for (i=0; i <= 100; i++) {
CMYK1[0] = 0;
CMYK1[1] = 0;
CMYK1[2] = 0;
CMYK1[3] = (cmsFloat32Number) i;
cmsDoTransform(fogra_lab, CMYK1, &Lab1, 1);
cmsDoTransform(xform, CMYK1, CMYK2, 1);
cmsDoTransform(swop_lab, CMYK2, &Lab2, 1);
DeltaL = fabs(Lab1.L - Lab2.L);
if (DeltaL > Max) Max = DeltaL;
}
cmsCloseProfile(hSWOP);
cmsCloseProfile(hFOGRA);
cmsCloseProfile(hLab);
cmsDeleteTransform(xform);
cmsDeleteTransform(swop_lab);
cmsDeleteTransform(fogra_lab);
return Max < 3.0;
}
static
cmsInt32Number CheckKPlaneBlackPreserving(void)
{
cmsHPROFILE hSWOP = cmsOpenProfileFromFileTHR(DbgThread(), "test1.icc", "r");
cmsHPROFILE hFOGRA = cmsOpenProfileFromFileTHR(DbgThread(), "test2.icc", "r");
cmsHTRANSFORM xform, swop_lab, fogra_lab;
cmsFloat32Number CMYK1[4], CMYK2[4];
cmsCIELab Lab1, Lab2;
cmsHPROFILE hLab;
cmsFloat64Number DeltaE, Max;
cmsInt32Number i;
hLab = cmsCreateLab4ProfileTHR(DbgThread(), NULL);
xform = cmsCreateTransformTHR(DbgThread(), hSWOP, TYPE_CMYK_FLT, hFOGRA, TYPE_CMYK_FLT, INTENT_PERCEPTUAL, 0);
swop_lab = cmsCreateTransformTHR(DbgThread(), hSWOP, TYPE_CMYK_FLT, hLab, TYPE_Lab_DBL, INTENT_PERCEPTUAL, 0);
fogra_lab = cmsCreateTransformTHR(DbgThread(), hFOGRA, TYPE_CMYK_FLT, hLab, TYPE_Lab_DBL, INTENT_PERCEPTUAL, 0);
Max = 0;
for (i=0; i <= 100; i++) {
CMYK1[0] = 0;
CMYK1[1] = 0;
CMYK1[2] = 0;
CMYK1[3] = (cmsFloat32Number) i;
cmsDoTransform(swop_lab, CMYK1, &Lab1, 1);
cmsDoTransform(xform, CMYK1, CMYK2, 1);
cmsDoTransform(fogra_lab, CMYK2, &Lab2, 1);
DeltaE = cmsDeltaE(&Lab1, &Lab2);
if (DeltaE > Max) Max = DeltaE;
}
cmsDeleteTransform(xform);
xform = cmsCreateTransformTHR(DbgThread(), hFOGRA, TYPE_CMYK_FLT, hSWOP, TYPE_CMYK_FLT, INTENT_PRESERVE_K_PLANE_PERCEPTUAL, 0);
for (i=0; i <= 100; i++) {
CMYK1[0] = 30;
CMYK1[1] = 20;
CMYK1[2] = 10;
CMYK1[3] = (cmsFloat32Number) i;
cmsDoTransform(fogra_lab, CMYK1, &Lab1, 1);
cmsDoTransform(xform, CMYK1, CMYK2, 1);
cmsDoTransform(swop_lab, CMYK2, &Lab2, 1);
DeltaE = cmsDeltaE(&Lab1, &Lab2);
if (DeltaE > Max) Max = DeltaE;
}
cmsDeleteTransform(xform);
cmsCloseProfile(hSWOP);
cmsCloseProfile(hFOGRA);
cmsCloseProfile(hLab);
cmsDeleteTransform(swop_lab);
cmsDeleteTransform(fogra_lab);
return Max < 30.0;
}
// ------------------------------------------------------------------------------------------------------
static
cmsInt32Number CheckProofingXFORMFloat(void)
{
cmsHPROFILE hAbove;
cmsHTRANSFORM xform;
cmsInt32Number rc;
hAbove = Create_AboveRGB();
xform = cmsCreateProofingTransformTHR(DbgThread(), hAbove, TYPE_RGB_FLT, hAbove, TYPE_RGB_FLT, hAbove,
INTENT_RELATIVE_COLORIMETRIC, INTENT_RELATIVE_COLORIMETRIC, cmsFLAGS_SOFTPROOFING);
cmsCloseProfile(hAbove);
rc = CheckFloatlinearXFORM(xform, 3);
cmsDeleteTransform(xform);
return rc;
}
static
cmsInt32Number CheckProofingXFORM16(void)
{
cmsHPROFILE hAbove;
cmsHTRANSFORM xform;
cmsInt32Number rc;
hAbove = Create_AboveRGB();
xform = cmsCreateProofingTransformTHR(DbgThread(), hAbove, TYPE_RGB_16, hAbove, TYPE_RGB_16, hAbove,
INTENT_RELATIVE_COLORIMETRIC, INTENT_RELATIVE_COLORIMETRIC, cmsFLAGS_SOFTPROOFING|cmsFLAGS_NOCACHE);
cmsCloseProfile(hAbove);
rc = Check16linearXFORM(xform, 3);
cmsDeleteTransform(xform);
return rc;
}
static
cmsInt32Number CheckGamutCheck(void)
{
cmsHPROFILE hSRGB, hAbove;
cmsHTRANSFORM xform;
cmsInt32Number rc;
cmsUInt16Number Alarm[3] = { 0xDEAD, 0xBABE, 0xFACE };
// Set alarm codes to fancy values so we could check the out of gamut condition
cmsSetAlarmCodes(Alarm);
// Create the profiles
hSRGB = cmsCreate_sRGBProfileTHR(DbgThread());
hAbove = Create_AboveRGB();
if (hSRGB == NULL || hAbove == NULL) return 0; // Failed
SubTest("Gamut check on floating point");
// Create a gamut checker in the same space. No value should be out of gamut
xform = cmsCreateProofingTransformTHR(DbgThread(), hAbove, TYPE_RGB_FLT, hAbove, TYPE_RGB_FLT, hAbove,
INTENT_RELATIVE_COLORIMETRIC, INTENT_RELATIVE_COLORIMETRIC, cmsFLAGS_GAMUTCHECK);
if (!CheckFloatlinearXFORM(xform, 3)) {
cmsCloseProfile(hSRGB);
cmsCloseProfile(hAbove);
cmsDeleteTransform(xform);
Fail("Gamut check on same profile failed");
return 0;
}
cmsDeleteTransform(xform);
SubTest("Gamut check on 16 bits");
xform = cmsCreateProofingTransformTHR(DbgThread(), hAbove, TYPE_RGB_16, hAbove, TYPE_RGB_16, hAbove,
INTENT_RELATIVE_COLORIMETRIC, INTENT_RELATIVE_COLORIMETRIC, cmsFLAGS_GAMUTCHECK);
cmsCloseProfile(hSRGB);
cmsCloseProfile(hAbove);
rc = Check16linearXFORM(xform, 3);
cmsDeleteTransform(xform);
return rc;
}
// -------------------------------------------------------------------------------------------------------------------
static
cmsInt32Number CheckBlackPoint(void)
{
cmsHPROFILE hProfile;
cmsCIEXYZ Black;
cmsCIELab Lab;
hProfile = cmsOpenProfileFromFileTHR(DbgThread(), "test5.icc", "r");
cmsDetectDestinationBlackPoint(&Black, hProfile, INTENT_RELATIVE_COLORIMETRIC, 0);
cmsCloseProfile(hProfile);
hProfile = cmsOpenProfileFromFileTHR(DbgThread(), "test1.icc", "r");
cmsDetectDestinationBlackPoint(&Black, hProfile, INTENT_RELATIVE_COLORIMETRIC, 0);
cmsXYZ2Lab(NULL, &Lab, &Black);
cmsCloseProfile(hProfile);
hProfile = cmsOpenProfileFromFileTHR(DbgThread(), "lcms2cmyk.icc", "r");
cmsDetectDestinationBlackPoint(&Black, hProfile, INTENT_RELATIVE_COLORIMETRIC, 0);
cmsXYZ2Lab(NULL, &Lab, &Black);
cmsCloseProfile(hProfile);
hProfile = cmsOpenProfileFromFileTHR(DbgThread(), "test2.icc", "r");
cmsDetectDestinationBlackPoint(&Black, hProfile, INTENT_RELATIVE_COLORIMETRIC, 0);
cmsXYZ2Lab(NULL, &Lab, &Black);
cmsCloseProfile(hProfile);
hProfile = cmsOpenProfileFromFileTHR(DbgThread(), "test1.icc", "r");
cmsDetectDestinationBlackPoint(&Black, hProfile, INTENT_PERCEPTUAL, 0);
cmsXYZ2Lab(NULL, &Lab, &Black);
cmsCloseProfile(hProfile);
return 1;
}
static
cmsInt32Number CheckOneTAC(cmsFloat64Number InkLimit)
{
cmsHPROFILE h;
cmsFloat64Number d;
h =CreateFakeCMYK(InkLimit, TRUE);
cmsSaveProfileToFile(h, "lcmstac.icc");
cmsCloseProfile(h);
h = cmsOpenProfileFromFile("lcmstac.icc", "r");
d = cmsDetectTAC(h);
cmsCloseProfile(h);
remove("lcmstac.icc");
if (fabs(d - InkLimit) > 5) return 0;
return 1;
}
static
cmsInt32Number CheckTAC(void)
{
if (!CheckOneTAC(180)) return 0;
if (!CheckOneTAC(220)) return 0;
if (!CheckOneTAC(286)) return 0;
if (!CheckOneTAC(310)) return 0;
if (!CheckOneTAC(330)) return 0;
return 1;
}
// -------------------------------------------------------------------------------------------------------
#define NPOINTS_IT8 10 // (17*17*17*17)
static
cmsInt32Number CheckCGATS(void)
{
cmsHANDLE it8;
cmsInt32Number i;
SubTest("IT8 creation");
it8 = cmsIT8Alloc(DbgThread());
if (it8 == NULL) return 0;
cmsIT8SetSheetType(it8, "LCMS/TESTING");
cmsIT8SetPropertyStr(it8, "ORIGINATOR", "1 2 3 4");
cmsIT8SetPropertyUncooked(it8, "DESCRIPTOR", "1234");
cmsIT8SetPropertyStr(it8, "MANUFACTURER", "3");
cmsIT8SetPropertyDbl(it8, "CREATED", 4);
cmsIT8SetPropertyDbl(it8, "SERIAL", 5);
cmsIT8SetPropertyHex(it8, "MATERIAL", 0x123);
cmsIT8SetPropertyDbl(it8, "NUMBER_OF_SETS", NPOINTS_IT8);
cmsIT8SetPropertyDbl(it8, "NUMBER_OF_FIELDS", 4);
cmsIT8SetDataFormat(it8, 0, "SAMPLE_ID");
cmsIT8SetDataFormat(it8, 1, "RGB_R");
cmsIT8SetDataFormat(it8, 2, "RGB_G");
cmsIT8SetDataFormat(it8, 3, "RGB_B");
SubTest("Table creation");
for (i=0; i < NPOINTS_IT8; i++) {
char Patch[20];
sprintf(Patch, "P%d", i);
cmsIT8SetDataRowCol(it8, i, 0, Patch);
cmsIT8SetDataRowColDbl(it8, i, 1, i);
cmsIT8SetDataRowColDbl(it8, i, 2, i);
cmsIT8SetDataRowColDbl(it8, i, 3, i);
}
SubTest("Save to file");
cmsIT8SaveToFile(it8, "TEST.IT8");
cmsIT8Free(it8);
SubTest("Load from file");
it8 = cmsIT8LoadFromFile(DbgThread(), "TEST.IT8");
if (it8 == NULL) return 0;
SubTest("Save again file");
cmsIT8SaveToFile(it8, "TEST.IT8");
cmsIT8Free(it8);
SubTest("Load from file (II)");
it8 = cmsIT8LoadFromFile(DbgThread(), "TEST.IT8");
if (it8 == NULL) return 0;
SubTest("Change prop value");
if (cmsIT8GetPropertyDbl(it8, "DESCRIPTOR") != 1234) {
return 0;
}
cmsIT8SetPropertyDbl(it8, "DESCRIPTOR", 5678);
if (cmsIT8GetPropertyDbl(it8, "DESCRIPTOR") != 5678) {
return 0;
}
SubTest("Positive numbers");
if (cmsIT8GetDataDbl(it8, "P3", "RGB_G") != 3) {
return 0;
}
SubTest("Positive exponent numbers");
cmsIT8SetPropertyDbl(it8, "DBL_PROP", 123E+12);
if ((cmsIT8GetPropertyDbl(it8, "DBL_PROP") - 123E+12) > 1 ) {
return 0;
}
SubTest("Negative exponent numbers");
cmsIT8SetPropertyDbl(it8, "DBL_PROP_NEG", 123E-45);
if ((cmsIT8GetPropertyDbl(it8, "DBL_PROP_NEG") - 123E-45) > 1E-45 ) {
return 0;
}
SubTest("Negative numbers");
cmsIT8SetPropertyDbl(it8, "DBL_NEG_VAL", -123);
if ((cmsIT8GetPropertyDbl(it8, "DBL_NEG_VAL")) != -123 ) {
return 0;
}
cmsIT8Free(it8);
remove("TEST.IT8");
return 1;
}
// Create CSA/CRD
static
void GenerateCSA(const char* cInProf, const char* FileName)
{
cmsHPROFILE hProfile;
cmsUInt32Number n;
char* Buffer;
cmsContext BuffThread = DbgThread();
FILE* o;
if (cInProf == NULL)
hProfile = cmsCreateLab4Profile(NULL);
else
hProfile = cmsOpenProfileFromFile(cInProf, "r");
n = cmsGetPostScriptCSA(DbgThread(), hProfile, 0, 0, NULL, 0);
if (n == 0) return;
Buffer = (char*) _cmsMalloc(BuffThread, n + 1);
cmsGetPostScriptCSA(DbgThread(), hProfile, 0, 0, Buffer, n);
Buffer[n] = 0;
if (FileName != NULL) {
o = fopen(FileName, "wb");
fwrite(Buffer, n, 1, o);
fclose(o);
}
_cmsFree(BuffThread, Buffer);
cmsCloseProfile(hProfile);
if (FileName != NULL)
remove(FileName);
}
static
void GenerateCRD(const char* cOutProf, const char* FileName)
{
cmsHPROFILE hProfile;
cmsUInt32Number n;
char* Buffer;
cmsUInt32Number dwFlags = 0;
cmsContext BuffThread = DbgThread();
if (cOutProf == NULL)
hProfile = cmsCreateLab4Profile(NULL);
else
hProfile = cmsOpenProfileFromFile(cOutProf, "r");
n = cmsGetPostScriptCRD(DbgThread(), hProfile, 0, dwFlags, NULL, 0);
if (n == 0) return;
Buffer = (char*) _cmsMalloc(BuffThread, n + 1);
cmsGetPostScriptCRD(DbgThread(), hProfile, 0, dwFlags, Buffer, n);
Buffer[n] = 0;
if (FileName != NULL) {
FILE* o = fopen(FileName, "wb");
fwrite(Buffer, n, 1, o);
fclose(o);
}
_cmsFree(BuffThread, Buffer);
cmsCloseProfile(hProfile);
if (FileName != NULL)
remove(FileName);
}
static
cmsInt32Number CheckPostScript(void)
{
GenerateCSA("test5.icc", "sRGB_CSA.ps");
GenerateCSA("aRGBlcms2.icc", "aRGB_CSA.ps");
GenerateCSA("test4.icc", "sRGBV4_CSA.ps");
GenerateCSA("test1.icc", "SWOP_CSA.ps");
GenerateCSA(NULL, "Lab_CSA.ps");
GenerateCSA("graylcms2.icc", "gray_CSA.ps");
GenerateCRD("test5.icc", "sRGB_CRD.ps");
GenerateCRD("aRGBlcms2.icc", "aRGB_CRD.ps");
GenerateCRD(NULL, "Lab_CRD.ps");
GenerateCRD("test1.icc", "SWOP_CRD.ps");
GenerateCRD("test4.icc", "sRGBV4_CRD.ps");
GenerateCRD("graylcms2.icc", "gray_CRD.ps");
return 1;
}
static
cmsInt32Number CheckGray(cmsHTRANSFORM xform, cmsUInt8Number g, double L)
{
cmsCIELab Lab;
cmsDoTransform(xform, &g, &Lab, 1);
if (!IsGoodVal("a axis on gray", 0, Lab.a, 0.001)) return 0;
if (!IsGoodVal("b axis on gray", 0, Lab.b, 0.001)) return 0;
return IsGoodVal("Gray value", L, Lab.L, 0.01);
}
static
cmsInt32Number CheckInputGray(void)
{
cmsHPROFILE hGray = Create_Gray22();
cmsHPROFILE hLab = cmsCreateLab4Profile(NULL);
cmsHTRANSFORM xform;
if (hGray == NULL || hLab == NULL) return 0;
xform = cmsCreateTransform(hGray, TYPE_GRAY_8, hLab, TYPE_Lab_DBL, INTENT_RELATIVE_COLORIMETRIC, 0);
cmsCloseProfile(hGray); cmsCloseProfile(hLab);
if (!CheckGray(xform, 0, 0)) return 0;
if (!CheckGray(xform, 125, 52.768)) return 0;
if (!CheckGray(xform, 200, 81.069)) return 0;
if (!CheckGray(xform, 255, 100.0)) return 0;
cmsDeleteTransform(xform);
return 1;
}
static
cmsInt32Number CheckLabInputGray(void)
{
cmsHPROFILE hGray = Create_GrayLab();
cmsHPROFILE hLab = cmsCreateLab4Profile(NULL);
cmsHTRANSFORM xform;
if (hGray == NULL || hLab == NULL) return 0;
xform = cmsCreateTransform(hGray, TYPE_GRAY_8, hLab, TYPE_Lab_DBL, INTENT_RELATIVE_COLORIMETRIC, 0);
cmsCloseProfile(hGray); cmsCloseProfile(hLab);
if (!CheckGray(xform, 0, 0)) return 0;
if (!CheckGray(xform, 125, 49.019)) return 0;
if (!CheckGray(xform, 200, 78.431)) return 0;
if (!CheckGray(xform, 255, 100.0)) return 0;
cmsDeleteTransform(xform);
return 1;
}
static
cmsInt32Number CheckOutGray(cmsHTRANSFORM xform, double L, cmsUInt8Number g)
{
cmsCIELab Lab;
cmsUInt8Number g_out;
Lab.L = L;
Lab.a = 0;
Lab.b = 0;
cmsDoTransform(xform, &Lab, &g_out, 1);
return IsGoodVal("Gray value", g, (double) g_out, 0.01);
}
static
cmsInt32Number CheckOutputGray(void)
{
cmsHPROFILE hGray = Create_Gray22();
cmsHPROFILE hLab = cmsCreateLab4Profile(NULL);
cmsHTRANSFORM xform;
if (hGray == NULL || hLab == NULL) return 0;
xform = cmsCreateTransform( hLab, TYPE_Lab_DBL, hGray, TYPE_GRAY_8, INTENT_RELATIVE_COLORIMETRIC, 0);
cmsCloseProfile(hGray); cmsCloseProfile(hLab);
if (!CheckOutGray(xform, 0, 0)) return 0;
if (!CheckOutGray(xform, 100, 255)) return 0;
if (!CheckOutGray(xform, 20, 52)) return 0;
if (!CheckOutGray(xform, 50, 118)) return 0;
cmsDeleteTransform(xform);
return 1;
}
static
cmsInt32Number CheckLabOutputGray(void)
{
cmsHPROFILE hGray = Create_GrayLab();
cmsHPROFILE hLab = cmsCreateLab4Profile(NULL);
cmsHTRANSFORM xform;
cmsInt32Number i;
if (hGray == NULL || hLab == NULL) return 0;
xform = cmsCreateTransform( hLab, TYPE_Lab_DBL, hGray, TYPE_GRAY_8, INTENT_RELATIVE_COLORIMETRIC, 0);
cmsCloseProfile(hGray); cmsCloseProfile(hLab);
if (!CheckOutGray(xform, 0, 0)) return 0;
if (!CheckOutGray(xform, 100, 255)) return 0;
for (i=0; i < 100; i++) {
cmsUInt8Number g;
g = (cmsUInt8Number) floor(i * 255.0 / 100.0 + 0.5);
if (!CheckOutGray(xform, i, g)) return 0;
}
cmsDeleteTransform(xform);
return 1;
}
static
cmsInt32Number CheckV4gamma(void)
{
cmsHPROFILE h;
cmsUInt16Number Lin[] = {0, 0xffff};
cmsToneCurve*g = cmsBuildTabulatedToneCurve16(DbgThread(), 2, Lin);
h = cmsOpenProfileFromFileTHR(DbgThread(), "v4gamma.icc", "w");
if (h == NULL) return 0;
cmsSetProfileVersion(h, 4.3);
if (!cmsWriteTag(h, cmsSigGrayTRCTag, g)) return 0;
cmsCloseProfile(h);
cmsFreeToneCurve(g);
remove("v4gamma.icc");
return 1;
}
// cmsBool cmsGBDdumpVRML(cmsHANDLE hGBD, const char* fname);
// Gamut descriptor routines
static
cmsInt32Number CheckGBD(void)
{
cmsCIELab Lab;
cmsHANDLE h;
cmsInt32Number L, a, b;
cmsUInt32Number r1, g1, b1;
cmsHPROFILE hLab, hsRGB;
cmsHTRANSFORM xform;
h = cmsGBDAlloc(DbgThread());
if (h == NULL) return 0;
// Fill all Lab gamut as valid
SubTest("Filling RAW gamut");
for (L=0; L <= 100; L += 10)
for (a = -128; a <= 128; a += 5)
for (b = -128; b <= 128; b += 5) {
Lab.L = L;
Lab.a = a;
Lab.b = b;
if (!cmsGDBAddPoint(h, &Lab)) return 0;
}
// Complete boundaries
SubTest("computing Lab gamut");
if (!cmsGDBCompute(h, 0)) return 0;
// All points should be inside gamut
SubTest("checking Lab gamut");
for (L=10; L <= 90; L += 25)
for (a = -120; a <= 120; a += 25)
for (b = -120; b <= 120; b += 25) {
Lab.L = L;
Lab.a = a;
Lab.b = b;
if (!cmsGDBCheckPoint(h, &Lab)) {
return 0;
}
}
cmsGBDFree(h);
// Now for sRGB
SubTest("checking sRGB gamut");
h = cmsGBDAlloc(DbgThread());
hsRGB = cmsCreate_sRGBProfile();
hLab = cmsCreateLab4Profile(NULL);
xform = cmsCreateTransform(hsRGB, TYPE_RGB_8, hLab, TYPE_Lab_DBL, INTENT_RELATIVE_COLORIMETRIC, cmsFLAGS_NOCACHE);
cmsCloseProfile(hsRGB); cmsCloseProfile(hLab);
for (r1=0; r1 < 256; r1 += 5) {
for (g1=0; g1 < 256; g1 += 5)
for (b1=0; b1 < 256; b1 += 5) {
cmsUInt8Number rgb[3];
rgb[0] = (cmsUInt8Number) r1;
rgb[1] = (cmsUInt8Number) g1;
rgb[2] = (cmsUInt8Number) b1;
cmsDoTransform(xform, rgb, &Lab, 1);
// if (fabs(Lab.b) < 20 && Lab.a > 0) continue;
if (!cmsGDBAddPoint(h, &Lab)) {
cmsGBDFree(h);
return 0;
}
}
}
if (!cmsGDBCompute(h, 0)) return 0;
// cmsGBDdumpVRML(h, "c:\\colormaps\\lab.wrl");
for (r1=10; r1 < 200; r1 += 10) {
for (g1=10; g1 < 200; g1 += 10)
for (b1=10; b1 < 200; b1 += 10) {
cmsUInt8Number rgb[3];
rgb[0] = (cmsUInt8Number) r1;
rgb[1] = (cmsUInt8Number) g1;
rgb[2] = (cmsUInt8Number) b1;
cmsDoTransform(xform, rgb, &Lab, 1);
if (!cmsGDBCheckPoint(h, &Lab)) {
cmsDeleteTransform(xform);
cmsGBDFree(h);
return 0;
}
}
}
cmsDeleteTransform(xform);
cmsGBDFree(h);
SubTest("checking LCh chroma ring");
h = cmsGBDAlloc(DbgThread());
for (r1=0; r1 < 360; r1++) {
cmsCIELCh LCh;
LCh.L = 70;
LCh.C = 60;
LCh.h = r1;
cmsLCh2Lab(&Lab, &LCh);
if (!cmsGDBAddPoint(h, &Lab)) {
cmsGBDFree(h);
return 0;
}
}
if (!cmsGDBCompute(h, 0)) return 0;
cmsGBDFree(h);
return 1;
}
static
int CheckMD5(void)
{
_cmsICCPROFILE* h;
cmsHPROFILE pProfile = cmsOpenProfileFromFile("sRGBlcms2.icc", "r");
cmsProfileID ProfileID1, ProfileID2, ProfileID3, ProfileID4;
h =(_cmsICCPROFILE*) pProfile;
if (cmsMD5computeID(pProfile)) cmsGetHeaderProfileID(pProfile, ProfileID1.ID8);
if (cmsMD5computeID(pProfile)) cmsGetHeaderProfileID(pProfile,ProfileID2.ID8);
cmsCloseProfile(pProfile);
pProfile = cmsOpenProfileFromFile("sRGBlcms2.icc", "r");
h =(_cmsICCPROFILE*) pProfile;
if (cmsMD5computeID(pProfile)) cmsGetHeaderProfileID(pProfile, ProfileID3.ID8);
if (cmsMD5computeID(pProfile)) cmsGetHeaderProfileID(pProfile,ProfileID4.ID8);
cmsCloseProfile(pProfile);
return ((memcmp(ProfileID1.ID8, ProfileID3.ID8, sizeof(ProfileID1)) == 0) &&
(memcmp(ProfileID2.ID8, ProfileID4.ID8, sizeof(ProfileID2)) == 0));
}
static
int CheckLinking(void)
{
cmsHPROFILE h;
cmsPipeline * pipeline;
cmsStage *stageBegin, *stageEnd;
// Create a CLUT based profile
h = cmsCreateInkLimitingDeviceLinkTHR(DbgThread(), cmsSigCmykData, 150);
// link a second tag
cmsLinkTag(h, cmsSigAToB1Tag, cmsSigAToB0Tag);
// Save the linked devicelink
if (!cmsSaveProfileToFile(h, "lcms2link.icc")) return 0;
cmsCloseProfile(h);
// Now open the profile and read the pipeline
h = cmsOpenProfileFromFile("lcms2link.icc", "r");
if (h == NULL) return 0;
pipeline = (cmsPipeline*) cmsReadTag(h, cmsSigAToB1Tag);
if (pipeline == NULL)
{
return 0;
}
pipeline = cmsPipelineDup(pipeline);
// extract stage from pipe line
cmsPipelineUnlinkStage(pipeline, cmsAT_BEGIN, &stageBegin);
cmsPipelineUnlinkStage(pipeline, cmsAT_END, &stageEnd);
cmsPipelineInsertStage(pipeline, cmsAT_END, stageEnd);
cmsPipelineInsertStage(pipeline, cmsAT_BEGIN, stageBegin);
if (cmsTagLinkedTo(h, cmsSigAToB1Tag) != cmsSigAToB0Tag) return 0;
cmsWriteTag(h, cmsSigAToB0Tag, pipeline);
cmsPipelineFree(pipeline);
if (!cmsSaveProfileToFile(h, "lcms2link2.icc")) return 0;
cmsCloseProfile(h);
return 1;
}
// TestMPE
//
// Created by Paul Miller on 30/08/2012.
//
static
cmsHPROFILE IdentityMatrixProfile( cmsColorSpaceSignature dataSpace)
{
cmsContext ctx = 0;
cmsVEC3 zero = {{0,0,0}};
cmsMAT3 identity;
cmsPipeline* forward;
cmsPipeline* reverse;
cmsHPROFILE identityProfile = cmsCreateProfilePlaceholder( ctx);
cmsSetProfileVersion(identityProfile, 4.3);
cmsSetDeviceClass( identityProfile, cmsSigColorSpaceClass);
cmsSetColorSpace(identityProfile, dataSpace);
cmsSetPCS(identityProfile, cmsSigXYZData);
cmsSetHeaderRenderingIntent(identityProfile, INTENT_RELATIVE_COLORIMETRIC);
cmsWriteTag(identityProfile, cmsSigMediaWhitePointTag, cmsD50_XYZ());
_cmsMAT3identity( &identity);
// build forward transform.... (RGB to PCS)
forward = cmsPipelineAlloc( 0, 3, 3);
cmsPipelineInsertStage( forward, cmsAT_END, cmsStageAllocMatrix( ctx, 3, 3, (cmsFloat64Number*)&identity, (cmsFloat64Number*)&zero));
cmsWriteTag( identityProfile, cmsSigDToB1Tag, forward);
cmsPipelineFree( forward);
reverse = cmsPipelineAlloc( 0, 3, 3);
cmsPipelineInsertStage( reverse, cmsAT_END, cmsStageAllocMatrix( ctx, 3, 3, (cmsFloat64Number*)&identity, (cmsFloat64Number*)&zero));
cmsWriteTag( identityProfile, cmsSigBToD1Tag, reverse);
cmsPipelineFree( reverse);
return identityProfile;
}
static
cmsInt32Number CheckFloatXYZ(void)
{
cmsHPROFILE input;
cmsHPROFILE xyzProfile = cmsCreateXYZProfile();
cmsHTRANSFORM xform;
cmsFloat32Number in[3];
cmsFloat32Number out[3];
in[0] = 1.0;
in[1] = 1.0;
in[2] = 1.0;
// RGB to XYZ
input = IdentityMatrixProfile( cmsSigRgbData);
xform = cmsCreateTransform( input, TYPE_RGB_FLT, xyzProfile, TYPE_XYZ_FLT, INTENT_RELATIVE_COLORIMETRIC, 0);
cmsCloseProfile(input);
cmsDoTransform( xform, in, out, 1);
cmsDeleteTransform( xform);
if (!IsGoodVal("Float RGB->XYZ", in[0], out[0], FLOAT_PRECISSION) ||
!IsGoodVal("Float RGB->XYZ", in[1], out[1], FLOAT_PRECISSION) ||
!IsGoodVal("Float RGB->XYZ", in[2], out[2], FLOAT_PRECISSION))
return 0;
// XYZ to XYZ
input = IdentityMatrixProfile( cmsSigXYZData);
xform = cmsCreateTransform( input, TYPE_XYZ_FLT, xyzProfile, TYPE_XYZ_FLT, INTENT_RELATIVE_COLORIMETRIC, 0);
cmsCloseProfile(input);
cmsDoTransform( xform, in, out, 1);
cmsDeleteTransform( xform);
if (!IsGoodVal("Float XYZ->XYZ", in[0], out[0], FLOAT_PRECISSION) ||
!IsGoodVal("Float XYZ->XYZ", in[1], out[1], FLOAT_PRECISSION) ||
!IsGoodVal("Float XYZ->XYZ", in[2], out[2], FLOAT_PRECISSION))
return 0;
// XYZ to RGB
input = IdentityMatrixProfile( cmsSigRgbData);
xform = cmsCreateTransform( xyzProfile, TYPE_XYZ_FLT, input, TYPE_RGB_FLT, INTENT_RELATIVE_COLORIMETRIC, 0);
cmsCloseProfile(input);
cmsDoTransform( xform, in, out, 1);
cmsDeleteTransform( xform);
if (!IsGoodVal("Float XYZ->RGB", in[0], out[0], FLOAT_PRECISSION) ||
!IsGoodVal("Float XYZ->RGB", in[1], out[1], FLOAT_PRECISSION) ||
!IsGoodVal("Float XYZ->RGB", in[2], out[2], FLOAT_PRECISSION))
return 0;
// Now the optimizer should remove a stage
// XYZ to RGB
input = IdentityMatrixProfile( cmsSigRgbData);
xform = cmsCreateTransform( input, TYPE_RGB_FLT, input, TYPE_RGB_FLT, INTENT_RELATIVE_COLORIMETRIC, 0);
cmsCloseProfile(input);
cmsDoTransform( xform, in, out, 1);
cmsDeleteTransform( xform);
if (!IsGoodVal("Float RGB->RGB", in[0], out[0], FLOAT_PRECISSION) ||
!IsGoodVal("Float RGB->RGB", in[1], out[1], FLOAT_PRECISSION) ||
!IsGoodVal("Float RGB->RGB", in[2], out[2], FLOAT_PRECISSION))
return 0;
cmsCloseProfile(xyzProfile);
return 1;
}
/*
Bug reported
1)
sRGB built-in V4.3 -> Lab identity built-in V4.3
Flags: "cmsFLAGS_NOCACHE", "cmsFLAGS_NOOPTIMIZE"
Input format: TYPE_RGBA_FLT
Output format: TYPE_LabA_FLT
2) and back
Lab identity built-in V4.3 -> sRGB built-in V4.3
Flags: "cmsFLAGS_NOCACHE", "cmsFLAGS_NOOPTIMIZE"
Input format: TYPE_LabA_FLT
Output format: TYPE_RGBA_FLT
*/
static
cmsInt32Number ChecksRGB2LabFLT(void)
{
cmsHPROFILE hSRGB = cmsCreate_sRGBProfile();
cmsHPROFILE hLab = cmsCreateLab4Profile(NULL);
cmsHTRANSFORM xform1 = cmsCreateTransform(hSRGB, TYPE_RGBA_FLT, hLab, TYPE_LabA_FLT, 0, cmsFLAGS_NOCACHE|cmsFLAGS_NOOPTIMIZE);
cmsHTRANSFORM xform2 = cmsCreateTransform(hLab, TYPE_LabA_FLT, hSRGB, TYPE_RGBA_FLT, 0, cmsFLAGS_NOCACHE|cmsFLAGS_NOOPTIMIZE);
cmsFloat32Number RGBA1[4], RGBA2[4], LabA[4];
int i;
for (i = 0; i <= 100; i++)
{
RGBA1[0] = i / 100.0F;
RGBA1[1] = i / 100.0F;
RGBA1[2] = i / 100.0F;
RGBA1[3] = 0;
cmsDoTransform(xform1, RGBA1, LabA, 1);
cmsDoTransform(xform2, LabA, RGBA2, 1);
if (!IsGoodVal("Float RGB->RGB", RGBA1[0], RGBA2[0], FLOAT_PRECISSION) ||
!IsGoodVal("Float RGB->RGB", RGBA1[1], RGBA2[1], FLOAT_PRECISSION) ||
!IsGoodVal("Float RGB->RGB", RGBA1[2], RGBA2[2], FLOAT_PRECISSION))
return 0;
}
cmsDeleteTransform(xform1);
cmsDeleteTransform(xform2);
cmsCloseProfile(hSRGB);
cmsCloseProfile(hLab);
return 1;
}
/*
* parametric curve for Rec709
*/
static
double Rec709(double L)
{
if (L <0.018) return 4.5*L;
else
{
double a = 1.099* pow(L, 0.45);
a = a - 0.099;
return a;
}
}
static
cmsInt32Number CheckParametricRec709(void)
{
cmsFloat64Number params[7];
cmsToneCurve* t;
int i;
params[0] = 0.45; /* y */
params[1] = pow(1.099, 1.0 / 0.45); /* a */
params[2] = 0.0; /* b */
params[3] = 4.5; /* c */
params[4] = 0.018; /* d */
params[5] = -0.099; /* e */
params[6] = 0.0; /* f */
t = cmsBuildParametricToneCurve (NULL, 5, params);
for (i=0; i < 256; i++)
{
cmsFloat32Number n = (cmsFloat32Number) i / 255.0F;
cmsUInt16Number f1 = (cmsUInt16Number) floor(255.0 * cmsEvalToneCurveFloat(t, n) + 0.5);
cmsUInt16Number f2 = (cmsUInt16Number) floor(255.0*Rec709((double) i / 255.0) + 0.5);
if (f1 != f2)
{
cmsFreeToneCurve(t);
return 0;
}
}
cmsFreeToneCurve(t);
return 1;
}
#define kNumPoints 10
typedef cmsFloat32Number(*Function)(cmsFloat32Number x);
static cmsFloat32Number StraightLine( cmsFloat32Number x)
{
return (cmsFloat32Number) (0.1 + 0.9 * x);
}
static cmsInt32Number TestCurve( const char* label, cmsToneCurve* curve, Function fn)
{
cmsInt32Number ok = 1;
int i;
for (i = 0; i < kNumPoints*3; i++) {
cmsFloat32Number x = (cmsFloat32Number)i / (kNumPoints*3 - 1);
cmsFloat32Number expectedY = fn(x);
cmsFloat32Number out = cmsEvalToneCurveFloat( curve, x);
if (!IsGoodVal(label, expectedY, out, FLOAT_PRECISSION)) {
ok = 0;
}
}
return ok;
}
static
cmsInt32Number CheckFloatSamples(void)
{
cmsFloat32Number y[kNumPoints];
int i;
cmsToneCurve *curve;
cmsInt32Number ok;
for (i = 0; i < kNumPoints; i++) {
cmsFloat32Number x = (cmsFloat32Number)i / (kNumPoints-1);
y[i] = StraightLine(x);
}
curve = cmsBuildTabulatedToneCurveFloat(NULL, kNumPoints, y);
ok = TestCurve( "Float Samples", curve, StraightLine);
cmsFreeToneCurve(curve);
return ok;
}
static
cmsInt32Number CheckFloatSegments(void)
{
cmsInt32Number ok = 1;
int i;
cmsToneCurve *curve;
cmsFloat32Number y[ kNumPoints];
// build a segmented curve with a sampled section...
cmsCurveSegment Seg[3];
// Initialize segmented curve part up to 0.1
Seg[0].x0 = -1e22f; // -infinity
Seg[0].x1 = 0.1f;
Seg[0].Type = 6; // Y = (a * X + b) ^ Gamma + c
Seg[0].Params[0] = 1.0f; // gamma
Seg[0].Params[1] = 0.9f; // a
Seg[0].Params[2] = 0.0f; // b
Seg[0].Params[3] = 0.1f; // c
Seg[0].Params[4] = 0.0f;
// From zero to 1
Seg[1].x0 = 0.1f;
Seg[1].x1 = 0.9f;
Seg[1].Type = 0;
Seg[1].nGridPoints = kNumPoints;
Seg[1].SampledPoints = y;
for (i = 0; i < kNumPoints; i++) {
cmsFloat32Number x = (cmsFloat32Number) (0.1 + ((cmsFloat32Number)i / (kNumPoints-1)) * (0.9 - 0.1));
y[i] = StraightLine(x);
}
// from 1 to +infinity
Seg[2].x0 = 0.9f;
Seg[2].x1 = 1e22f; // +infinity
Seg[2].Type = 6;
Seg[2].Params[0] = 1.0f;
Seg[2].Params[1] = 0.9f;
Seg[2].Params[2] = 0.0f;
Seg[2].Params[3] = 0.1f;
Seg[2].Params[4] = 0.0f;
curve = cmsBuildSegmentedToneCurve(0, 3, Seg);
ok = TestCurve( "Float Segmented Curve", curve, StraightLine);
cmsFreeToneCurve( curve);
return ok;
}
static
cmsInt32Number CheckReadRAW(void)
{
cmsInt32Number tag_size, tag_size1;
char buffer[4];
cmsHPROFILE hProfile;
SubTest("RAW read on on-disk");
hProfile = cmsOpenProfileFromFile("test1.icc", "r");
if (hProfile == NULL)
return 0;
tag_size = cmsReadRawTag(hProfile, cmsSigGamutTag, buffer, 4);
tag_size1 = cmsReadRawTag(hProfile, cmsSigGamutTag, NULL, 0);
cmsCloseProfile(hProfile);
if (tag_size != 4)
return 0;
if (tag_size1 != 37009)
return 0;
SubTest("RAW read on in-memory created profiles");
hProfile = cmsCreate_sRGBProfile();
tag_size = cmsReadRawTag(hProfile, cmsSigGreenColorantTag, buffer, 4);
tag_size1 = cmsReadRawTag(hProfile, cmsSigGreenColorantTag, NULL, 0);
cmsCloseProfile(hProfile);
if (tag_size != 4)
return 0;
if (tag_size1 != 20)
return 0;
return 1;
}
// --------------------------------------------------------------------------------------------------
// P E R F O R M A N C E C H E C K S
// --------------------------------------------------------------------------------------------------
typedef struct {cmsUInt8Number r, g, b, a;} Scanline_rgb1;
typedef struct {cmsUInt16Number r, g, b, a;} Scanline_rgb2;
typedef struct {cmsUInt8Number r, g, b;} Scanline_rgb8;
typedef struct {cmsUInt16Number r, g, b;} Scanline_rgb0;
static
void TitlePerformance(const char* Txt)
{
printf("%-45s: ", Txt); fflush(stdout);
}
static
void PrintPerformance(cmsUInt32Number Bytes, cmsUInt32Number SizeOfPixel, cmsFloat64Number diff)
{
cmsFloat64Number seconds = (cmsFloat64Number) diff / CLOCKS_PER_SEC;
cmsFloat64Number mpix_sec = Bytes / (1024.0*1024.0*seconds*SizeOfPixel);
printf("%g MPixel/sec.\n", mpix_sec);
fflush(stdout);
}
static
void SpeedTest16bits(const char * Title, cmsHPROFILE hlcmsProfileIn, cmsHPROFILE hlcmsProfileOut, cmsInt32Number Intent)
{
cmsInt32Number r, g, b, j;
clock_t atime;
cmsFloat64Number diff;
cmsHTRANSFORM hlcmsxform;
Scanline_rgb0 *In;
cmsUInt32Number Mb;
if (hlcmsProfileIn == NULL || hlcmsProfileOut == NULL)
Die("Unable to open profiles");
hlcmsxform = cmsCreateTransformTHR(DbgThread(), hlcmsProfileIn, TYPE_RGB_16,
hlcmsProfileOut, TYPE_RGB_16, Intent, cmsFLAGS_NOCACHE);
cmsCloseProfile(hlcmsProfileIn);
cmsCloseProfile(hlcmsProfileOut);
Mb = 256*256*256*sizeof(Scanline_rgb0);
In = (Scanline_rgb0*) malloc(Mb);
j = 0;
for (r=0; r < 256; r++)
for (g=0; g < 256; g++)
for (b=0; b < 256; b++) {
In[j].r = (cmsUInt16Number) ((r << 8) | r);
In[j].g = (cmsUInt16Number) ((g << 8) | g);
In[j].b = (cmsUInt16Number) ((b << 8) | b);
j++;
}
TitlePerformance(Title);
atime = clock();
cmsDoTransform(hlcmsxform, In, In, 256*256*256);
diff = clock() - atime;
free(In);
PrintPerformance(Mb, sizeof(Scanline_rgb0), diff);
cmsDeleteTransform(hlcmsxform);
}
static
void SpeedTest16bitsCMYK(const char * Title, cmsHPROFILE hlcmsProfileIn, cmsHPROFILE hlcmsProfileOut)
{
cmsInt32Number r, g, b, j;
clock_t atime;
cmsFloat64Number diff;
cmsHTRANSFORM hlcmsxform;
Scanline_rgb2 *In;
cmsUInt32Number Mb;
if (hlcmsProfileIn == NULL || hlcmsProfileOut == NULL)
Die("Unable to open profiles");
hlcmsxform = cmsCreateTransformTHR(DbgThread(), hlcmsProfileIn, TYPE_CMYK_16,
hlcmsProfileOut, TYPE_CMYK_16, INTENT_PERCEPTUAL, cmsFLAGS_NOCACHE);
cmsCloseProfile(hlcmsProfileIn);
cmsCloseProfile(hlcmsProfileOut);
Mb = 256*256*256*sizeof(Scanline_rgb2);
In = (Scanline_rgb2*) malloc(Mb);
j = 0;
for (r=0; r < 256; r++)
for (g=0; g < 256; g++)
for (b=0; b < 256; b++) {
In[j].r = (cmsUInt16Number) ((r << 8) | r);
In[j].g = (cmsUInt16Number) ((g << 8) | g);
In[j].b = (cmsUInt16Number) ((b << 8) | b);
In[j].a = 0;
j++;
}
TitlePerformance(Title);
atime = clock();
cmsDoTransform(hlcmsxform, In, In, 256*256*256);
diff = clock() - atime;
free(In);
PrintPerformance(Mb, sizeof(Scanline_rgb2), diff);
cmsDeleteTransform(hlcmsxform);
}
static
void SpeedTest8bits(const char * Title, cmsHPROFILE hlcmsProfileIn, cmsHPROFILE hlcmsProfileOut, cmsInt32Number Intent)
{
cmsInt32Number r, g, b, j;
clock_t atime;
cmsFloat64Number diff;
cmsHTRANSFORM hlcmsxform;
Scanline_rgb8 *In;
cmsUInt32Number Mb;
if (hlcmsProfileIn == NULL || hlcmsProfileOut == NULL)
Die("Unable to open profiles");
hlcmsxform = cmsCreateTransformTHR(DbgThread(), hlcmsProfileIn, TYPE_RGB_8,
hlcmsProfileOut, TYPE_RGB_8, Intent, cmsFLAGS_NOCACHE);
cmsCloseProfile(hlcmsProfileIn);
cmsCloseProfile(hlcmsProfileOut);
Mb = 256*256*256*sizeof(Scanline_rgb8);
In = (Scanline_rgb8*) malloc(Mb);
j = 0;
for (r=0; r < 256; r++)
for (g=0; g < 256; g++)
for (b=0; b < 256; b++) {
In[j].r = (cmsUInt8Number) r;
In[j].g = (cmsUInt8Number) g;
In[j].b = (cmsUInt8Number) b;
j++;
}
TitlePerformance(Title);
atime = clock();
cmsDoTransform(hlcmsxform, In, In, 256*256*256);
diff = clock() - atime;
free(In);
PrintPerformance(Mb, sizeof(Scanline_rgb8), diff);
cmsDeleteTransform(hlcmsxform);
}
static
void SpeedTest8bitsCMYK(const char * Title, cmsHPROFILE hlcmsProfileIn, cmsHPROFILE hlcmsProfileOut)
{
cmsInt32Number r, g, b, j;
clock_t atime;
cmsFloat64Number diff;
cmsHTRANSFORM hlcmsxform;
Scanline_rgb2 *In;
cmsUInt32Number Mb;
if (hlcmsProfileIn == NULL || hlcmsProfileOut == NULL)
Die("Unable to open profiles");
hlcmsxform = cmsCreateTransformTHR(DbgThread(), hlcmsProfileIn, TYPE_CMYK_8,
hlcmsProfileOut, TYPE_CMYK_8, INTENT_PERCEPTUAL, cmsFLAGS_NOCACHE);
cmsCloseProfile(hlcmsProfileIn);
cmsCloseProfile(hlcmsProfileOut);
Mb = 256*256*256*sizeof(Scanline_rgb2);
In = (Scanline_rgb2*) malloc(Mb);
j = 0;
for (r=0; r < 256; r++)
for (g=0; g < 256; g++)
for (b=0; b < 256; b++) {
In[j].r = (cmsUInt8Number) r;
In[j].g = (cmsUInt8Number) g;
In[j].b = (cmsUInt8Number) b;
In[j].a = (cmsUInt8Number) 0;
j++;
}
TitlePerformance(Title);
atime = clock();
cmsDoTransform(hlcmsxform, In, In, 256*256*256);
diff = clock() - atime;
free(In);
PrintPerformance(Mb, sizeof(Scanline_rgb2), diff);
cmsDeleteTransform(hlcmsxform);
}
static
void SpeedTest8bitsGray(const char * Title, cmsHPROFILE hlcmsProfileIn, cmsHPROFILE hlcmsProfileOut, cmsInt32Number Intent)
{
cmsInt32Number r, g, b, j;
clock_t atime;
cmsFloat64Number diff;
cmsHTRANSFORM hlcmsxform;
cmsUInt8Number *In;
cmsUInt32Number Mb;
if (hlcmsProfileIn == NULL || hlcmsProfileOut == NULL)
Die("Unable to open profiles");
hlcmsxform = cmsCreateTransformTHR(DbgThread(), hlcmsProfileIn,
TYPE_GRAY_8, hlcmsProfileOut, TYPE_GRAY_8, Intent, cmsFLAGS_NOCACHE);
cmsCloseProfile(hlcmsProfileIn);
cmsCloseProfile(hlcmsProfileOut);
Mb = 256*256*256;
In = (cmsUInt8Number*) malloc(Mb);
j = 0;
for (r=0; r < 256; r++)
for (g=0; g < 256; g++)
for (b=0; b < 256; b++) {
In[j] = (cmsUInt8Number) r;
j++;
}
TitlePerformance(Title);
atime = clock();
cmsDoTransform(hlcmsxform, In, In, 256*256*256);
diff = clock() - atime;
free(In);
PrintPerformance(Mb, sizeof(cmsUInt8Number), diff);
cmsDeleteTransform(hlcmsxform);
}
static
cmsHPROFILE CreateCurves(void)
{
cmsToneCurve* Gamma = cmsBuildGamma(DbgThread(), 1.1);
cmsToneCurve* Transfer[3];
cmsHPROFILE h;
Transfer[0] = Transfer[1] = Transfer[2] = Gamma;
h = cmsCreateLinearizationDeviceLink(cmsSigRgbData, Transfer);
cmsFreeToneCurve(Gamma);
return h;
}
static
void SpeedTest(void)
{
printf("\n\nP E R F O R M A N C E T E S T S\n");
printf( "=================================\n\n");
fflush(stdout);
SpeedTest16bits("16 bits on CLUT profiles",
cmsOpenProfileFromFile("test5.icc", "r"),
cmsOpenProfileFromFile("test3.icc", "r"), INTENT_PERCEPTUAL);
SpeedTest8bits("8 bits on CLUT profiles",
cmsOpenProfileFromFile("test5.icc", "r"),
cmsOpenProfileFromFile("test3.icc", "r"),
INTENT_PERCEPTUAL);
SpeedTest8bits("8 bits on Matrix-Shaper profiles",
cmsOpenProfileFromFile("test5.icc", "r"),
cmsOpenProfileFromFile("aRGBlcms2.icc", "r"),
INTENT_PERCEPTUAL);
SpeedTest8bits("8 bits on SAME Matrix-Shaper profiles",
cmsOpenProfileFromFile("test5.icc", "r"),
cmsOpenProfileFromFile("test5.icc", "r"),
INTENT_PERCEPTUAL);
SpeedTest8bits("8 bits on Matrix-Shaper profiles (AbsCol)",
cmsOpenProfileFromFile("test5.icc", "r"),
cmsOpenProfileFromFile("aRGBlcms2.icc", "r"),
INTENT_ABSOLUTE_COLORIMETRIC);
SpeedTest16bits("16 bits on Matrix-Shaper profiles",
cmsOpenProfileFromFile("test5.icc", "r"),
cmsOpenProfileFromFile("aRGBlcms2.icc", "r"),
INTENT_PERCEPTUAL);
SpeedTest16bits("16 bits on SAME Matrix-Shaper profiles",
cmsOpenProfileFromFile("aRGBlcms2.icc", "r"),
cmsOpenProfileFromFile("aRGBlcms2.icc", "r"),
INTENT_PERCEPTUAL);
SpeedTest16bits("16 bits on Matrix-Shaper profiles (AbsCol)",
cmsOpenProfileFromFile("test5.icc", "r"),
cmsOpenProfileFromFile("aRGBlcms2.icc", "r"),
INTENT_ABSOLUTE_COLORIMETRIC);
SpeedTest8bits("8 bits on curves",
CreateCurves(),
CreateCurves(),
INTENT_PERCEPTUAL);
SpeedTest16bits("16 bits on curves",
CreateCurves(),
CreateCurves(),
INTENT_PERCEPTUAL);
SpeedTest8bitsCMYK("8 bits on CMYK profiles",
cmsOpenProfileFromFile("test1.icc", "r"),
cmsOpenProfileFromFile("test2.icc", "r"));
SpeedTest16bitsCMYK("16 bits on CMYK profiles",
cmsOpenProfileFromFile("test1.icc", "r"),
cmsOpenProfileFromFile("test2.icc", "r"));
SpeedTest8bitsGray("8 bits on gray-to gray",
cmsOpenProfileFromFile("gray3lcms2.icc", "r"),
cmsOpenProfileFromFile("graylcms2.icc", "r"), INTENT_RELATIVE_COLORIMETRIC);
SpeedTest8bitsGray("8 bits on gray-to-lab gray",
cmsOpenProfileFromFile("graylcms2.icc", "r"),
cmsOpenProfileFromFile("glablcms2.icc", "r"), INTENT_RELATIVE_COLORIMETRIC);
SpeedTest8bitsGray("8 bits on SAME gray-to-gray",
cmsOpenProfileFromFile("graylcms2.icc", "r"),
cmsOpenProfileFromFile("graylcms2.icc", "r"), INTENT_PERCEPTUAL);
}
// -----------------------------------------------------------------------------------------------------
// Print the supported intents
static
void PrintSupportedIntents(void)
{
cmsUInt32Number n, i;
cmsUInt32Number Codes[200];
char* Descriptions[200];
n = cmsGetSupportedIntents(200, Codes, Descriptions);
printf("Supported intents:\n");
for (i=0; i < n; i++) {
printf("\t%u - %s\n", Codes[i], Descriptions[i]);
}
printf("\n");
}
// ZOO checks ------------------------------------------------------------------------------------------------------------
#ifdef CMS_IS_WINDOWS_
static char ZOOfolder[cmsMAX_PATH] = "c:\\colormaps\\";
static char ZOOwrite[cmsMAX_PATH] = "c:\\colormaps\\write\\";
static char ZOORawWrite[cmsMAX_PATH] = "c:\\colormaps\\rawwrite\\";
// Read all tags on a profile given by its handle
static
void ReadAllTags(cmsHPROFILE h)
{
cmsInt32Number i, n;
cmsTagSignature sig;
n = cmsGetTagCount(h);
for (i=0; i < n; i++) {
sig = cmsGetTagSignature(h, i);
if (cmsReadTag(h, sig) == NULL) return;
}
}
// Read all tags on a profile given by its handle
static
void ReadAllRAWTags(cmsHPROFILE h)
{
cmsInt32Number i, n;
cmsTagSignature sig;
cmsInt32Number len;
n = cmsGetTagCount(h);
for (i=0; i < n; i++) {
sig = cmsGetTagSignature(h, i);
len = cmsReadRawTag(h, sig, NULL, 0);
}
}
static
void PrintInfo(cmsHPROFILE h, cmsInfoType Info)
{
wchar_t* text;
cmsInt32Number len;
cmsContext id = DbgThread();
len = cmsGetProfileInfo(h, Info, "en", "US", NULL, 0);
if (len == 0) return;
text = _cmsMalloc(id, len);
cmsGetProfileInfo(h, Info, "en", "US", text, len);
wprintf(L"%s\n", text);
_cmsFree(id, text);
}
static
void PrintAllInfos(cmsHPROFILE h)
{
PrintInfo(h, cmsInfoDescription);
PrintInfo(h, cmsInfoManufacturer);
PrintInfo(h, cmsInfoModel);
PrintInfo(h, cmsInfoCopyright);
printf("\n\n");
}
static
void ReadAllLUTS(cmsHPROFILE h)
{
cmsPipeline* a;
cmsCIEXYZ Black;
a = _cmsReadInputLUT(h, INTENT_PERCEPTUAL);
if (a) cmsPipelineFree(a);
a = _cmsReadInputLUT(h, INTENT_RELATIVE_COLORIMETRIC);
if (a) cmsPipelineFree(a);
a = _cmsReadInputLUT(h, INTENT_SATURATION);
if (a) cmsPipelineFree(a);
a = _cmsReadInputLUT(h, INTENT_ABSOLUTE_COLORIMETRIC);
if (a) cmsPipelineFree(a);
a = _cmsReadOutputLUT(h, INTENT_PERCEPTUAL);
if (a) cmsPipelineFree(a);
a = _cmsReadOutputLUT(h, INTENT_RELATIVE_COLORIMETRIC);
if (a) cmsPipelineFree(a);
a = _cmsReadOutputLUT(h, INTENT_SATURATION);
if (a) cmsPipelineFree(a);
a = _cmsReadOutputLUT(h, INTENT_ABSOLUTE_COLORIMETRIC);
if (a) cmsPipelineFree(a);
a = _cmsReadDevicelinkLUT(h, INTENT_PERCEPTUAL);
if (a) cmsPipelineFree(a);
a = _cmsReadDevicelinkLUT(h, INTENT_RELATIVE_COLORIMETRIC);
if (a) cmsPipelineFree(a);
a = _cmsReadDevicelinkLUT(h, INTENT_SATURATION);
if (a) cmsPipelineFree(a);
a = _cmsReadDevicelinkLUT(h, INTENT_ABSOLUTE_COLORIMETRIC);
if (a) cmsPipelineFree(a);
cmsDetectDestinationBlackPoint(&Black, h, INTENT_PERCEPTUAL, 0);
cmsDetectDestinationBlackPoint(&Black, h, INTENT_RELATIVE_COLORIMETRIC, 0);
cmsDetectDestinationBlackPoint(&Black, h, INTENT_SATURATION, 0);
cmsDetectDestinationBlackPoint(&Black, h, INTENT_ABSOLUTE_COLORIMETRIC, 0);
cmsDetectTAC(h);
}
// Check one specimen in the ZOO
static
cmsInt32Number CheckSingleSpecimen(const char* Profile)
{
char BuffSrc[256];
char BuffDst[256];
cmsHPROFILE h;
sprintf(BuffSrc, "%s%s", ZOOfolder, Profile);
sprintf(BuffDst, "%s%s", ZOOwrite, Profile);
h = cmsOpenProfileFromFile(BuffSrc, "r");
if (h == NULL) return 0;
printf("%s\n", Profile);
PrintAllInfos(h);
ReadAllTags(h);
// ReadAllRAWTags(h);
ReadAllLUTS(h);
cmsSaveProfileToFile(h, BuffDst);
cmsCloseProfile(h);
h = cmsOpenProfileFromFile(BuffDst, "r");
if (h == NULL) return 0;
ReadAllTags(h);
cmsCloseProfile(h);
return 1;
}
static
cmsInt32Number CheckRAWSpecimen(const char* Profile)
{
char BuffSrc[256];
char BuffDst[256];
cmsHPROFILE h;
sprintf(BuffSrc, "%s%s", ZOOfolder, Profile);
sprintf(BuffDst, "%s%s", ZOORawWrite, Profile);
h = cmsOpenProfileFromFile(BuffSrc, "r");
if (h == NULL) return 0;
ReadAllTags(h);
ReadAllRAWTags(h);
cmsSaveProfileToFile(h, BuffDst);
cmsCloseProfile(h);
h = cmsOpenProfileFromFile(BuffDst, "r");
if (h == NULL) return 0;
ReadAllTags(h);
cmsCloseProfile(h);
return 1;
}
static
void CheckProfileZOO(void)
{
struct _finddata_t c_file;
intptr_t hFile;
cmsSetLogErrorHandler(NULL);
if ( (hFile = _findfirst("c:\\colormaps\\*.*", &c_file)) == -1L )
printf("No files in current directory");
else
{
do
{
printf("%s\n", c_file.name);
if (strcmp(c_file.name, ".") != 0 &&
strcmp(c_file.name, "..") != 0) {
CheckSingleSpecimen( c_file.name);
CheckRAWSpecimen( c_file.name);
if (TotalMemory > 0)
printf("Ok, but %s are left!\n", MemStr(TotalMemory));
else
printf("Ok.\n");
}
} while ( _findnext(hFile, &c_file) == 0 );
_findclose(hFile);
}
cmsSetLogErrorHandler(FatalErrorQuit);
}
#endif
#if 0
#define TYPE_709 709
static double Rec709Math(int Type, const double Params[], double R)
{ double Fun;
switch (Type)
{
case 709:
if (R <= (Params[3]*Params[4])) Fun = R / Params[3];
else Fun = pow(((R - Params[2])/Params[1]), Params[0]);
break;
case -709:
if (R <= Params[4]) Fun = R * Params[3];
else Fun = Params[1] * pow(R, (1/Params[0])) + Params[2];
break;
}
return Fun;
}
// Add nonstandard TRC curves -> Rec709
cmsPluginParametricCurves NewCurvePlugin = {
{ cmsPluginMagicNumber, 2000, cmsPluginParametricCurveSig, NULL },
1, {TYPE_709}, {5}, Rec709Math};
#endif
// ---------------------------------------------------------------------------------------
int main(int argc, char* argv[])
{
cmsInt32Number Exhaustive = 0;
cmsInt32Number DoSpeedTests = 1;
cmsInt32Number DoCheckTests = 1;
#ifdef _MSC_VER
_CrtSetDbgFlag ( _CRTDBG_ALLOC_MEM_DF | _CRTDBG_LEAK_CHECK_DF );
#endif
printf("LittleCMS %2.2f test bed %s %s\n\n", LCMS_VERSION / 1000.0, __DATE__, __TIME__);
if ((argc == 2) && strcmp(argv[1], "--exhaustive") == 0) {
Exhaustive = 1;
printf("Running exhaustive tests (will take a while...)\n\n");
}
printf("Installing debug memory plug-in ... ");
cmsPlugin(&DebugMemHandler);
printf("done.\n");
printf("Installing error logger ... ");
cmsSetLogErrorHandler(FatalErrorQuit);
printf("done.\n");
#ifdef CMS_IS_WINDOWS_
// CheckProfileZOO();
#endif
PrintSupportedIntents();
// Create utility profiles
Check("Creation of test profiles", CreateTestProfiles);
if (DoCheckTests)
{
Check("Base types", CheckBaseTypes);
Check("endianess", CheckEndianess);
Check("quick floor", CheckQuickFloor);
Check("quick floor word", CheckQuickFloorWord);
Check("Fixed point 15.16 representation", CheckFixedPoint15_16);
Check("Fixed point 8.8 representation", CheckFixedPoint8_8);
// Forward 1D interpolation
Check("1D interpolation in 2pt tables", Check1DLERP2);
Check("1D interpolation in 3pt tables", Check1DLERP3);
Check("1D interpolation in 4pt tables", Check1DLERP4);
Check("1D interpolation in 6pt tables", Check1DLERP6);
Check("1D interpolation in 18pt tables", Check1DLERP18);
Check("1D interpolation in descending 2pt tables", Check1DLERP2Down);
Check("1D interpolation in descending 3pt tables", Check1DLERP3Down);
Check("1D interpolation in descending 6pt tables", Check1DLERP6Down);
Check("1D interpolation in descending 18pt tables", Check1DLERP18Down);
if (Exhaustive) {
Check("1D interpolation in n tables", ExhaustiveCheck1DLERP);
Check("1D interpolation in descending tables", ExhaustiveCheck1DLERPDown);
}
// Forward 3D interpolation
Check("3D interpolation Tetrahedral (float) ", Check3DinterpolationFloatTetrahedral);
Check("3D interpolation Trilinear (float) ", Check3DinterpolationFloatTrilinear);
Check("3D interpolation Tetrahedral (16) ", Check3DinterpolationTetrahedral16);
Check("3D interpolation Trilinear (16) ", Check3DinterpolationTrilinear16);
if (Exhaustive) {
Check("Exhaustive 3D interpolation Tetrahedral (float) ", ExaustiveCheck3DinterpolationFloatTetrahedral);
Check("Exhaustive 3D interpolation Trilinear (float) ", ExaustiveCheck3DinterpolationFloatTrilinear);
Check("Exhaustive 3D interpolation Tetrahedral (16) ", ExhaustiveCheck3DinterpolationTetrahedral16);
Check("Exhaustive 3D interpolation Trilinear (16) ", ExhaustiveCheck3DinterpolationTrilinear16);
}
Check("Reverse interpolation 3 -> 3", CheckReverseInterpolation3x3);
Check("Reverse interpolation 4 -> 3", CheckReverseInterpolation4x3);
// High dimensionality interpolation
Check("3D interpolation", Check3Dinterp);
Check("3D interpolation with granularity", Check3DinterpGranular);
Check("4D interpolation", Check4Dinterp);
Check("4D interpolation with granularity", Check4DinterpGranular);
Check("5D interpolation with granularity", Check5DinterpGranular);
Check("6D interpolation with granularity", Check6DinterpGranular);
Check("7D interpolation with granularity", Check7DinterpGranular);
Check("8D interpolation with granularity", Check8DinterpGranular);
// Encoding of colorspaces
Check("Lab to LCh and back (float only) ", CheckLab2LCh);
Check("Lab to XYZ and back (float only) ", CheckLab2XYZ);
Check("Lab to xyY and back (float only) ", CheckLab2xyY);
Check("Lab V2 encoding", CheckLabV2encoding);
Check("Lab V4 encoding", CheckLabV4encoding);
// BlackBody
Check("Blackbody radiator", CheckTemp2CHRM);
// Tone curves
Check("Linear gamma curves (16 bits)", CheckGammaCreation16);
Check("Linear gamma curves (float)", CheckGammaCreationFlt);
Check("Curve 1.8 (float)", CheckGamma18);
Check("Curve 2.2 (float)", CheckGamma22);
Check("Curve 3.0 (float)", CheckGamma30);
Check("Curve 1.8 (table)", CheckGamma18Table);
Check("Curve 2.2 (table)", CheckGamma22Table);
Check("Curve 3.0 (table)", CheckGamma30Table);
Check("Curve 1.8 (word table)", CheckGamma18TableWord);
Check("Curve 2.2 (word table)", CheckGamma22TableWord);
Check("Curve 3.0 (word table)", CheckGamma30TableWord);
Check("Parametric curves", CheckParametricToneCurves);
Check("Join curves", CheckJointCurves);
Check("Join curves descending", CheckJointCurvesDescending);
Check("Join curves degenerated", CheckReverseDegenerated);
Check("Join curves sRGB (Float)", CheckJointFloatCurves_sRGB);
Check("Join curves sRGB (16 bits)", CheckJoint16Curves_sRGB);
Check("Join curves sigmoidal", CheckJointCurvesSShaped);
// LUT basics
Check("LUT creation & dup", CheckLUTcreation);
Check("1 Stage LUT ", Check1StageLUT);
Check("2 Stage LUT ", Check2StageLUT);
Check("2 Stage LUT (16 bits)", Check2Stage16LUT);
Check("3 Stage LUT ", Check3StageLUT);
Check("3 Stage LUT (16 bits)", Check3Stage16LUT);
Check("4 Stage LUT ", Check4StageLUT);
Check("4 Stage LUT (16 bits)", Check4Stage16LUT);
Check("5 Stage LUT ", Check5StageLUT);
Check("5 Stage LUT (16 bits) ", Check5Stage16LUT);
Check("6 Stage LUT ", Check6StageLUT);
Check("6 Stage LUT (16 bits) ", Check6Stage16LUT);
// LUT operation
Check("Lab to Lab LUT (float only) ", CheckLab2LabLUT);
Check("XYZ to XYZ LUT (float only) ", CheckXYZ2XYZLUT);
Check("Lab to Lab MAT LUT (float only) ", CheckLab2LabMatLUT);
Check("Named Color LUT", CheckNamedColorLUT);
Check("Usual formatters", CheckFormatters16);
Check("Floating point formatters", CheckFormattersFloat);
#ifndef CMS_NO_HALF_SUPPORT
Check("HALF formatters", CheckFormattersHalf);
#endif
// ChangeBuffersFormat
Check("ChangeBuffersFormat", CheckChangeBufferFormat);
// MLU
Check("Multilocalized Unicode", CheckMLU);
// Named color
Check("Named color lists", CheckNamedColorList);
// Profile I/O (this one is huge!)
Check("Profile creation", CheckProfileCreation);
// Error reporting
Check("Error reporting on bad profiles", CheckErrReportingOnBadProfiles);
Check("Error reporting on bad transforms", CheckErrReportingOnBadTransforms);
// Transforms
Check("Curves only transforms", CheckCurvesOnlyTransforms);
Check("Float Lab->Lab transforms", CheckFloatLabTransforms);
Check("Encoded Lab->Lab transforms", CheckEncodedLabTransforms);
Check("Stored identities", CheckStoredIdentities);
Check("Matrix-shaper transform (float)", CheckMatrixShaperXFORMFloat);
Check("Matrix-shaper transform (16 bits)", CheckMatrixShaperXFORM16);
Check("Matrix-shaper transform (8 bits)", CheckMatrixShaperXFORM8);
Check("Primaries of sRGB", CheckRGBPrimaries);
// Known values
Check("Known values across matrix-shaper", Chack_sRGB_Float);
Check("Gray input profile", CheckInputGray);
Check("Gray Lab input profile", CheckLabInputGray);
Check("Gray output profile", CheckOutputGray);
Check("Gray Lab output profile", CheckLabOutputGray);
Check("Matrix-shaper proofing transform (float)", CheckProofingXFORMFloat);
Check("Matrix-shaper proofing transform (16 bits)", CheckProofingXFORM16);
Check("Gamut check", CheckGamutCheck);
Check("CMYK roundtrip on perceptual transform", CheckCMYKRoundtrip);
Check("CMYK perceptual transform", CheckCMYKPerceptual);
// Check("CMYK rel.col. transform", CheckCMYKRelCol);
Check("Black ink only preservation", CheckKOnlyBlackPreserving);
Check("Black plane preservation", CheckKPlaneBlackPreserving);
Check("Deciding curve types", CheckV4gamma);
Check("Black point detection", CheckBlackPoint);
Check("TAC detection", CheckTAC);
Check("CGATS parser", CheckCGATS);
Check("PostScript generator", CheckPostScript);
Check("Segment maxima GBD", CheckGBD);
Check("MD5 digest", CheckMD5);
Check("Linking", CheckLinking);
Check("floating point tags on XYZ", CheckFloatXYZ);
Check("RGB->Lab->RGB with alpha on FLT", ChecksRGB2LabFLT);
Check("Parametric curve on Rec709", CheckParametricRec709);
Check("Floating Point sampled curve with non-zero start", CheckFloatSamples);
Check("Floating Point segmented curve with short sampled segement", CheckFloatSegments);
Check("Read RAW portions", CheckReadRAW);
}
if (DoSpeedTests)
SpeedTest();
DebugMemPrintTotals();
cmsUnregisterPlugins();
// Cleanup
RemoveTestProfiles();
return TotalFail;
}
|
37 | ./little-cms/src/cmssamp.c | //---------------------------------------------------------------------------------
//
// Little Color Management System
// Copyright (c) 1998-2010 Marti Maria Saguer
//
// Permission is hereby granted, free of charge, to any person obtaining
// a copy of this software and associated documentation files (the "Software"),
// to deal in the Software without restriction, including without limitation
// the rights to use, copy, modify, merge, publish, distribute, sublicense,
// and/or sell copies of the Software, and to permit persons to whom the Software
// is furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO
// THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
// LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
// OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
// WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
//
//---------------------------------------------------------------------------------
//
#include "lcms2_internal.h"
#define cmsmin(a, b) (((a) < (b)) ? (a) : (b))
#define cmsmax(a, b) (((a) > (b)) ? (a) : (b))
// This file contains routines for resampling and LUT optimization, black point detection
// and black preservation.
// Black point detection -------------------------------------------------------------------------
// PCS -> PCS round trip transform, always uses relative intent on the device -> pcs
static
cmsHTRANSFORM CreateRoundtripXForm(cmsHPROFILE hProfile, cmsUInt32Number nIntent)
{
cmsContext ContextID = cmsGetProfileContextID(hProfile);
cmsHPROFILE hLab = cmsCreateLab4ProfileTHR(ContextID, NULL);
cmsHTRANSFORM xform;
cmsBool BPC[4] = { FALSE, FALSE, FALSE, FALSE };
cmsFloat64Number States[4] = { 1.0, 1.0, 1.0, 1.0 };
cmsHPROFILE hProfiles[4];
cmsUInt32Number Intents[4];
hProfiles[0] = hLab; hProfiles[1] = hProfile; hProfiles[2] = hProfile; hProfiles[3] = hLab;
Intents[0] = INTENT_RELATIVE_COLORIMETRIC; Intents[1] = nIntent; Intents[2] = INTENT_RELATIVE_COLORIMETRIC; Intents[3] = INTENT_RELATIVE_COLORIMETRIC;
xform = cmsCreateExtendedTransform(ContextID, 4, hProfiles, BPC, Intents,
States, NULL, 0, TYPE_Lab_DBL, TYPE_Lab_DBL, cmsFLAGS_NOCACHE|cmsFLAGS_NOOPTIMIZE);
cmsCloseProfile(hLab);
return xform;
}
// Use darker colorants to obtain black point. This works in the relative colorimetric intent and
// assumes more ink results in darker colors. No ink limit is assumed.
static
cmsBool BlackPointAsDarkerColorant(cmsHPROFILE hInput,
cmsUInt32Number Intent,
cmsCIEXYZ* BlackPoint,
cmsUInt32Number dwFlags)
{
cmsUInt16Number *Black;
cmsHTRANSFORM xform;
cmsColorSpaceSignature Space;
cmsUInt32Number nChannels;
cmsUInt32Number dwFormat;
cmsHPROFILE hLab;
cmsCIELab Lab;
cmsCIEXYZ BlackXYZ;
cmsContext ContextID = cmsGetProfileContextID(hInput);
// If the profile does not support input direction, assume Black point 0
if (!cmsIsIntentSupported(hInput, Intent, LCMS_USED_AS_INPUT)) {
BlackPoint -> X = BlackPoint ->Y = BlackPoint -> Z = 0.0;
return FALSE;
}
// Create a formatter which has n channels and floating point
dwFormat = cmsFormatterForColorspaceOfProfile(hInput, 2, FALSE);
// Try to get black by using black colorant
Space = cmsGetColorSpace(hInput);
// This function returns darker colorant in 16 bits for several spaces
if (!_cmsEndPointsBySpace(Space, NULL, &Black, &nChannels)) {
BlackPoint -> X = BlackPoint ->Y = BlackPoint -> Z = 0.0;
return FALSE;
}
if (nChannels != T_CHANNELS(dwFormat)) {
BlackPoint -> X = BlackPoint ->Y = BlackPoint -> Z = 0.0;
return FALSE;
}
// Lab will be used as the output space, but lab2 will avoid recursion
hLab = cmsCreateLab2ProfileTHR(ContextID, NULL);
if (hLab == NULL) {
BlackPoint -> X = BlackPoint ->Y = BlackPoint -> Z = 0.0;
return FALSE;
}
// Create the transform
xform = cmsCreateTransformTHR(ContextID, hInput, dwFormat,
hLab, TYPE_Lab_DBL, Intent, cmsFLAGS_NOOPTIMIZE|cmsFLAGS_NOCACHE);
cmsCloseProfile(hLab);
if (xform == NULL) {
// Something went wrong. Get rid of open resources and return zero as black
BlackPoint -> X = BlackPoint ->Y = BlackPoint -> Z = 0.0;
return FALSE;
}
// Convert black to Lab
cmsDoTransform(xform, Black, &Lab, 1);
// Force it to be neutral, clip to max. L* of 50
Lab.a = Lab.b = 0;
if (Lab.L > 50) Lab.L = 50;
// Free the resources
cmsDeleteTransform(xform);
// Convert from Lab (which is now clipped) to XYZ.
cmsLab2XYZ(NULL, &BlackXYZ, &Lab);
if (BlackPoint != NULL)
*BlackPoint = BlackXYZ;
return TRUE;
cmsUNUSED_PARAMETER(dwFlags);
}
// Get a black point of output CMYK profile, discounting any ink-limiting embedded
// in the profile. For doing that, we use perceptual intent in input direction:
// Lab (0, 0, 0) -> [Perceptual] Profile -> CMYK -> [Rel. colorimetric] Profile -> Lab
static
cmsBool BlackPointUsingPerceptualBlack(cmsCIEXYZ* BlackPoint, cmsHPROFILE hProfile)
{
cmsHTRANSFORM hRoundTrip;
cmsCIELab LabIn, LabOut;
cmsCIEXYZ BlackXYZ;
// Is the intent supported by the profile?
if (!cmsIsIntentSupported(hProfile, INTENT_PERCEPTUAL, LCMS_USED_AS_INPUT)) {
BlackPoint -> X = BlackPoint ->Y = BlackPoint -> Z = 0.0;
return TRUE;
}
hRoundTrip = CreateRoundtripXForm(hProfile, INTENT_PERCEPTUAL);
if (hRoundTrip == NULL) {
BlackPoint -> X = BlackPoint ->Y = BlackPoint -> Z = 0.0;
return FALSE;
}
LabIn.L = LabIn.a = LabIn.b = 0;
cmsDoTransform(hRoundTrip, &LabIn, &LabOut, 1);
// Clip Lab to reasonable limits
if (LabOut.L > 50) LabOut.L = 50;
LabOut.a = LabOut.b = 0;
cmsDeleteTransform(hRoundTrip);
// Convert it to XYZ
cmsLab2XYZ(NULL, &BlackXYZ, &LabOut);
if (BlackPoint != NULL)
*BlackPoint = BlackXYZ;
return TRUE;
}
// This function shouldn't exist at all -- there is such quantity of broken
// profiles on black point tag, that we must somehow fix chromaticity to
// avoid huge tint when doing Black point compensation. This function does
// just that. There is a special flag for using black point tag, but turned
// off by default because it is bogus on most profiles. The detection algorithm
// involves to turn BP to neutral and to use only L component.
cmsBool CMSEXPORT cmsDetectBlackPoint(cmsCIEXYZ* BlackPoint, cmsHPROFILE hProfile, cmsUInt32Number Intent, cmsUInt32Number dwFlags)
{
cmsProfileClassSignature devClass;
// Make sure the device class is adequate
devClass = cmsGetDeviceClass(hProfile);
if (devClass == cmsSigLinkClass ||
devClass == cmsSigAbstractClass ||
devClass == cmsSigNamedColorClass) {
BlackPoint -> X = BlackPoint ->Y = BlackPoint -> Z = 0.0;
return FALSE;
}
// Make sure intent is adequate
if (Intent != INTENT_PERCEPTUAL &&
Intent != INTENT_RELATIVE_COLORIMETRIC &&
Intent != INTENT_SATURATION) {
BlackPoint -> X = BlackPoint ->Y = BlackPoint -> Z = 0.0;
return FALSE;
}
// v4 + perceptual & saturation intents does have its own black point, and it is
// well specified enough to use it. Black point tag is deprecated in V4.
if ((cmsGetEncodedICCversion(hProfile) >= 0x4000000) &&
(Intent == INTENT_PERCEPTUAL || Intent == INTENT_SATURATION)) {
// Matrix shaper share MRC & perceptual intents
if (cmsIsMatrixShaper(hProfile))
return BlackPointAsDarkerColorant(hProfile, INTENT_RELATIVE_COLORIMETRIC, BlackPoint, 0);
// Get Perceptual black out of v4 profiles. That is fixed for perceptual & saturation intents
BlackPoint -> X = cmsPERCEPTUAL_BLACK_X;
BlackPoint -> Y = cmsPERCEPTUAL_BLACK_Y;
BlackPoint -> Z = cmsPERCEPTUAL_BLACK_Z;
return TRUE;
}
#ifdef CMS_USE_PROFILE_BLACK_POINT_TAG
// v2, v4 rel/abs colorimetric
if (cmsIsTag(hProfile, cmsSigMediaBlackPointTag) &&
Intent == INTENT_RELATIVE_COLORIMETRIC) {
cmsCIEXYZ *BlackPtr, BlackXYZ, UntrustedBlackPoint, TrustedBlackPoint, MediaWhite;
cmsCIELab Lab;
// If black point is specified, then use it,
BlackPtr = cmsReadTag(hProfile, cmsSigMediaBlackPointTag);
if (BlackPtr != NULL) {
BlackXYZ = *BlackPtr;
_cmsReadMediaWhitePoint(&MediaWhite, hProfile);
// Black point is absolute XYZ, so adapt to D50 to get PCS value
cmsAdaptToIlluminant(&UntrustedBlackPoint, &MediaWhite, cmsD50_XYZ(), &BlackXYZ);
// Force a=b=0 to get rid of any chroma
cmsXYZ2Lab(NULL, &Lab, &UntrustedBlackPoint);
Lab.a = Lab.b = 0;
if (Lab.L > 50) Lab.L = 50; // Clip to L* <= 50
cmsLab2XYZ(NULL, &TrustedBlackPoint, &Lab);
if (BlackPoint != NULL)
*BlackPoint = TrustedBlackPoint;
return TRUE;
}
}
#endif
// That is about v2 profiles.
// If output profile, discount ink-limiting and that's all
if (Intent == INTENT_RELATIVE_COLORIMETRIC &&
(cmsGetDeviceClass(hProfile) == cmsSigOutputClass) &&
(cmsGetColorSpace(hProfile) == cmsSigCmykData))
return BlackPointUsingPerceptualBlack(BlackPoint, hProfile);
// Nope, compute BP using current intent.
return BlackPointAsDarkerColorant(hProfile, Intent, BlackPoint, dwFlags);
}
// ---------------------------------------------------------------------------------------------------------
// Least Squares Fit of a Quadratic Curve to Data
// http://www.personal.psu.edu/jhm/f90/lectures/lsq2.html
static
cmsFloat64Number RootOfLeastSquaresFitQuadraticCurve(int n, cmsFloat64Number x[], cmsFloat64Number y[])
{
double sum_x = 0, sum_x2 = 0, sum_x3 = 0, sum_x4 = 0;
double sum_y = 0, sum_yx = 0, sum_yx2 = 0;
double d, a, b, c;
int i;
cmsMAT3 m;
cmsVEC3 v, res;
if (n < 4) return 0;
for (i=0; i < n; i++) {
double xn = x[i];
double yn = y[i];
sum_x += xn;
sum_x2 += xn*xn;
sum_x3 += xn*xn*xn;
sum_x4 += xn*xn*xn*xn;
sum_y += yn;
sum_yx += yn*xn;
sum_yx2 += yn*xn*xn;
}
_cmsVEC3init(&m.v[0], n, sum_x, sum_x2);
_cmsVEC3init(&m.v[1], sum_x, sum_x2, sum_x3);
_cmsVEC3init(&m.v[2], sum_x2, sum_x3, sum_x4);
_cmsVEC3init(&v, sum_y, sum_yx, sum_yx2);
if (!_cmsMAT3solve(&res, &m, &v)) return 0;
a = res.n[2];
b = res.n[1];
c = res.n[0];
if (fabs(a) < 1.0E-10) {
return cmsmin(0, cmsmax(50, -c/b ));
}
else {
d = b*b - 4.0 * a * c;
if (d <= 0) {
return 0;
}
else {
double rt = (-b + sqrt(d)) / (2.0 * a);
return cmsmax(0, cmsmin(50, rt));
}
}
}
/*
static
cmsBool IsMonotonic(int n, const cmsFloat64Number Table[])
{
int i;
cmsFloat64Number last;
last = Table[n-1];
for (i = n-2; i >= 0; --i) {
if (Table[i] > last)
return FALSE;
else
last = Table[i];
}
return TRUE;
}
*/
// Calculates the black point of a destination profile.
// This algorithm comes from the Adobe paper disclosing its black point compensation method.
cmsBool CMSEXPORT cmsDetectDestinationBlackPoint(cmsCIEXYZ* BlackPoint, cmsHPROFILE hProfile, cmsUInt32Number Intent, cmsUInt32Number dwFlags)
{
cmsColorSpaceSignature ColorSpace;
cmsHTRANSFORM hRoundTrip = NULL;
cmsCIELab InitialLab, destLab, Lab;
cmsFloat64Number inRamp[256], outRamp[256];
cmsFloat64Number MinL, MaxL;
cmsBool NearlyStraightMidrange = TRUE;
cmsFloat64Number yRamp[256];
cmsFloat64Number x[256], y[256];
cmsFloat64Number lo, hi;
int n, l;
cmsProfileClassSignature devClass;
// Make sure the device class is adequate
devClass = cmsGetDeviceClass(hProfile);
if (devClass == cmsSigLinkClass ||
devClass == cmsSigAbstractClass ||
devClass == cmsSigNamedColorClass) {
BlackPoint -> X = BlackPoint ->Y = BlackPoint -> Z = 0.0;
return FALSE;
}
// Make sure intent is adequate
if (Intent != INTENT_PERCEPTUAL &&
Intent != INTENT_RELATIVE_COLORIMETRIC &&
Intent != INTENT_SATURATION) {
BlackPoint -> X = BlackPoint ->Y = BlackPoint -> Z = 0.0;
return FALSE;
}
// v4 + perceptual & saturation intents does have its own black point, and it is
// well specified enough to use it. Black point tag is deprecated in V4.
if ((cmsGetEncodedICCversion(hProfile) >= 0x4000000) &&
(Intent == INTENT_PERCEPTUAL || Intent == INTENT_SATURATION)) {
// Matrix shaper share MRC & perceptual intents
if (cmsIsMatrixShaper(hProfile))
return BlackPointAsDarkerColorant(hProfile, INTENT_RELATIVE_COLORIMETRIC, BlackPoint, 0);
// Get Perceptual black out of v4 profiles. That is fixed for perceptual & saturation intents
BlackPoint -> X = cmsPERCEPTUAL_BLACK_X;
BlackPoint -> Y = cmsPERCEPTUAL_BLACK_Y;
BlackPoint -> Z = cmsPERCEPTUAL_BLACK_Z;
return TRUE;
}
// Check if the profile is lut based and gray, rgb or cmyk (7.2 in Adobe's document)
ColorSpace = cmsGetColorSpace(hProfile);
if (!cmsIsCLUT(hProfile, Intent, LCMS_USED_AS_OUTPUT ) ||
(ColorSpace != cmsSigGrayData &&
ColorSpace != cmsSigRgbData &&
ColorSpace != cmsSigCmykData)) {
// In this case, handle as input case
return cmsDetectBlackPoint(BlackPoint, hProfile, Intent, dwFlags);
}
// It is one of the valid cases!, use Adobe algorithm
// Set a first guess, that should work on good profiles.
if (Intent == INTENT_RELATIVE_COLORIMETRIC) {
cmsCIEXYZ IniXYZ;
// calculate initial Lab as source black point
if (!cmsDetectBlackPoint(&IniXYZ, hProfile, Intent, dwFlags)) {
return FALSE;
}
// convert the XYZ to lab
cmsXYZ2Lab(NULL, &InitialLab, &IniXYZ);
} else {
// set the initial Lab to zero, that should be the black point for perceptual and saturation
InitialLab.L = 0;
InitialLab.a = 0;
InitialLab.b = 0;
}
// Step 2
// ======
// Create a roundtrip. Define a Transform BT for all x in L*a*b*
hRoundTrip = CreateRoundtripXForm(hProfile, Intent);
if (hRoundTrip == NULL) return FALSE;
// Compute ramps
for (l=0; l < 256; l++) {
Lab.L = (cmsFloat64Number) (l * 100.0) / 255.0;
Lab.a = cmsmin(50, cmsmax(-50, InitialLab.a));
Lab.b = cmsmin(50, cmsmax(-50, InitialLab.b));
cmsDoTransform(hRoundTrip, &Lab, &destLab, 1);
inRamp[l] = Lab.L;
outRamp[l] = destLab.L;
}
// Make monotonic
for (l = 254; l > 0; --l) {
outRamp[l] = cmsmin(outRamp[l], outRamp[l+1]);
}
// Check
if (! (outRamp[0] < outRamp[255])) {
cmsDeleteTransform(hRoundTrip);
BlackPoint -> X = BlackPoint ->Y = BlackPoint -> Z = 0.0;
return FALSE;
}
// Test for mid range straight (only on relative colorimetric)
NearlyStraightMidrange = TRUE;
MinL = outRamp[0]; MaxL = outRamp[255];
if (Intent == INTENT_RELATIVE_COLORIMETRIC) {
for (l=0; l < 256; l++) {
if (! ((inRamp[l] <= MinL + 0.2 * (MaxL - MinL) ) ||
(fabs(inRamp[l] - outRamp[l]) < 4.0 )))
NearlyStraightMidrange = FALSE;
}
// If the mid range is straight (as determined above) then the
// DestinationBlackPoint shall be the same as initialLab.
// Otherwise, the DestinationBlackPoint shall be determined
// using curve fitting.
if (NearlyStraightMidrange) {
cmsLab2XYZ(NULL, BlackPoint, &InitialLab);
cmsDeleteTransform(hRoundTrip);
return TRUE;
}
}
// curve fitting: The round-trip curve normally looks like a nearly constant section at the black point,
// with a corner and a nearly straight line to the white point.
for (l=0; l < 256; l++) {
yRamp[l] = (outRamp[l] - MinL) / (MaxL - MinL);
}
// find the black point using the least squares error quadratic curve fitting
if (Intent == INTENT_RELATIVE_COLORIMETRIC) {
lo = 0.1;
hi = 0.5;
}
else {
// Perceptual and saturation
lo = 0.03;
hi = 0.25;
}
// Capture shadow points for the fitting.
n = 0;
for (l=0; l < 256; l++) {
cmsFloat64Number ff = yRamp[l];
if (ff >= lo && ff < hi) {
x[n] = inRamp[l];
y[n] = yRamp[l];
n++;
}
}
// No suitable points
if (n < 3 ) {
cmsDeleteTransform(hRoundTrip);
BlackPoint -> X = BlackPoint ->Y = BlackPoint -> Z = 0.0;
return FALSE;
}
// fit and get the vertex of quadratic curve
Lab.L = RootOfLeastSquaresFitQuadraticCurve(n, x, y);
if (Lab.L < 0.0) { // clip to zero L* if the vertex is negative
Lab.L = 0;
}
Lab.a = InitialLab.a;
Lab.b = InitialLab.b;
cmsLab2XYZ(NULL, BlackPoint, &Lab);
cmsDeleteTransform(hRoundTrip);
return TRUE;
}
|
38 | ./little-cms/src/cmspcs.c | //---------------------------------------------------------------------------------
//
// Little Color Management System
// Copyright (c) 1998-2010 Marti Maria Saguer
//
// Permission is hereby granted, free of charge, to any person obtaining
// a copy of this software and associated documentation files (the "Software"),
// to deal in the Software without restriction, including without limitation
// the rights to use, copy, modify, merge, publish, distribute, sublicense,
// and/or sell copies of the Software, and to permit persons to whom the Software
// is furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO
// THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
// LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
// OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
// WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
//
//---------------------------------------------------------------------------------
//
#include "lcms2_internal.h"
// inter PCS conversions XYZ <-> CIE L* a* b*
/*
CIE 15:2004 CIELab is defined as:
L* = 116*f(Y/Yn) - 16 0 <= L* <= 100
a* = 500*[f(X/Xn) - f(Y/Yn)]
b* = 200*[f(Y/Yn) - f(Z/Zn)]
and
f(t) = t^(1/3) 1 >= t > (24/116)^3
(841/108)*t + (16/116) 0 <= t <= (24/116)^3
Reverse transform is:
X = Xn*[a* / 500 + (L* + 16) / 116] ^ 3 if (X/Xn) > (24/116)
= Xn*(a* / 500 + L* / 116) / 7.787 if (X/Xn) <= (24/116)
PCS in Lab2 is encoded as:
8 bit Lab PCS:
L* 0..100 into a 0..ff byte.
a* t + 128 range is -128.0 +127.0
b*
16 bit Lab PCS:
L* 0..100 into a 0..ff00 word.
a* t + 128 range is -128.0 +127.9961
b*
Interchange Space Component Actual Range Encoded Range
CIE XYZ X 0 -> 1.99997 0x0000 -> 0xffff
CIE XYZ Y 0 -> 1.99997 0x0000 -> 0xffff
CIE XYZ Z 0 -> 1.99997 0x0000 -> 0xffff
Version 2,3
-----------
CIELAB (16 bit) L* 0 -> 100.0 0x0000 -> 0xff00
CIELAB (16 bit) a* -128.0 -> +127.996 0x0000 -> 0x8000 -> 0xffff
CIELAB (16 bit) b* -128.0 -> +127.996 0x0000 -> 0x8000 -> 0xffff
Version 4
---------
CIELAB (16 bit) L* 0 -> 100.0 0x0000 -> 0xffff
CIELAB (16 bit) a* -128.0 -> +127 0x0000 -> 0x8080 -> 0xffff
CIELAB (16 bit) b* -128.0 -> +127 0x0000 -> 0x8080 -> 0xffff
*/
// Conversions
void CMSEXPORT cmsXYZ2xyY(cmsCIExyY* Dest, const cmsCIEXYZ* Source)
{
cmsFloat64Number ISum;
ISum = 1./(Source -> X + Source -> Y + Source -> Z);
Dest -> x = (Source -> X) * ISum;
Dest -> y = (Source -> Y) * ISum;
Dest -> Y = Source -> Y;
}
void CMSEXPORT cmsxyY2XYZ(cmsCIEXYZ* Dest, const cmsCIExyY* Source)
{
Dest -> X = (Source -> x / Source -> y) * Source -> Y;
Dest -> Y = Source -> Y;
Dest -> Z = ((1 - Source -> x - Source -> y) / Source -> y) * Source -> Y;
}
static
cmsFloat64Number f(cmsFloat64Number t)
{
const cmsFloat64Number Limit = (24.0/116.0) * (24.0/116.0) * (24.0/116.0);
if (t <= Limit)
return (841.0/108.0) * t + (16.0/116.0);
else
return pow(t, 1.0/3.0);
}
static
cmsFloat64Number f_1(cmsFloat64Number t)
{
const cmsFloat64Number Limit = (24.0/116.0);
if (t <= Limit) {
return (108.0/841.0) * (t - (16.0/116.0));
}
return t * t * t;
}
// Standard XYZ to Lab. it can handle negative XZY numbers in some cases
void CMSEXPORT cmsXYZ2Lab(const cmsCIEXYZ* WhitePoint, cmsCIELab* Lab, const cmsCIEXYZ* xyz)
{
cmsFloat64Number fx, fy, fz;
if (WhitePoint == NULL)
WhitePoint = cmsD50_XYZ();
fx = f(xyz->X / WhitePoint->X);
fy = f(xyz->Y / WhitePoint->Y);
fz = f(xyz->Z / WhitePoint->Z);
Lab->L = 116.0*fy - 16.0;
Lab->a = 500.0*(fx - fy);
Lab->b = 200.0*(fy - fz);
}
// Standard XYZ to Lab. It can return negative XYZ in some cases
void CMSEXPORT cmsLab2XYZ(const cmsCIEXYZ* WhitePoint, cmsCIEXYZ* xyz, const cmsCIELab* Lab)
{
cmsFloat64Number x, y, z;
if (WhitePoint == NULL)
WhitePoint = cmsD50_XYZ();
y = (Lab-> L + 16.0) / 116.0;
x = y + 0.002 * Lab -> a;
z = y - 0.005 * Lab -> b;
xyz -> X = f_1(x) * WhitePoint -> X;
xyz -> Y = f_1(y) * WhitePoint -> Y;
xyz -> Z = f_1(z) * WhitePoint -> Z;
}
static
cmsFloat64Number L2float2(cmsUInt16Number v)
{
return (cmsFloat64Number) v / 652.800;
}
// the a/b part
static
cmsFloat64Number ab2float2(cmsUInt16Number v)
{
return ((cmsFloat64Number) v / 256.0) - 128.0;
}
static
cmsUInt16Number L2Fix2(cmsFloat64Number L)
{
return _cmsQuickSaturateWord(L * 652.8);
}
static
cmsUInt16Number ab2Fix2(cmsFloat64Number ab)
{
return _cmsQuickSaturateWord((ab + 128.0) * 256.0);
}
static
cmsFloat64Number L2float4(cmsUInt16Number v)
{
return (cmsFloat64Number) v / 655.35;
}
// the a/b part
static
cmsFloat64Number ab2float4(cmsUInt16Number v)
{
return ((cmsFloat64Number) v / 257.0) - 128.0;
}
void CMSEXPORT cmsLabEncoded2FloatV2(cmsCIELab* Lab, const cmsUInt16Number wLab[3])
{
Lab->L = L2float2(wLab[0]);
Lab->a = ab2float2(wLab[1]);
Lab->b = ab2float2(wLab[2]);
}
void CMSEXPORT cmsLabEncoded2Float(cmsCIELab* Lab, const cmsUInt16Number wLab[3])
{
Lab->L = L2float4(wLab[0]);
Lab->a = ab2float4(wLab[1]);
Lab->b = ab2float4(wLab[2]);
}
static
cmsFloat64Number Clamp_L_doubleV2(cmsFloat64Number L)
{
const cmsFloat64Number L_max = (cmsFloat64Number) (0xFFFF * 100.0) / 0xFF00;
if (L < 0) L = 0;
if (L > L_max) L = L_max;
return L;
}
static
cmsFloat64Number Clamp_ab_doubleV2(cmsFloat64Number ab)
{
if (ab < MIN_ENCODEABLE_ab2) ab = MIN_ENCODEABLE_ab2;
if (ab > MAX_ENCODEABLE_ab2) ab = MAX_ENCODEABLE_ab2;
return ab;
}
void CMSEXPORT cmsFloat2LabEncodedV2(cmsUInt16Number wLab[3], const cmsCIELab* fLab)
{
cmsCIELab Lab;
Lab.L = Clamp_L_doubleV2(fLab ->L);
Lab.a = Clamp_ab_doubleV2(fLab ->a);
Lab.b = Clamp_ab_doubleV2(fLab ->b);
wLab[0] = L2Fix2(Lab.L);
wLab[1] = ab2Fix2(Lab.a);
wLab[2] = ab2Fix2(Lab.b);
}
static
cmsFloat64Number Clamp_L_doubleV4(cmsFloat64Number L)
{
if (L < 0) L = 0;
if (L > 100.0) L = 100.0;
return L;
}
static
cmsFloat64Number Clamp_ab_doubleV4(cmsFloat64Number ab)
{
if (ab < MIN_ENCODEABLE_ab4) ab = MIN_ENCODEABLE_ab4;
if (ab > MAX_ENCODEABLE_ab4) ab = MAX_ENCODEABLE_ab4;
return ab;
}
static
cmsUInt16Number L2Fix4(cmsFloat64Number L)
{
return _cmsQuickSaturateWord(L * 655.35);
}
static
cmsUInt16Number ab2Fix4(cmsFloat64Number ab)
{
return _cmsQuickSaturateWord((ab + 128.0) * 257.0);
}
void CMSEXPORT cmsFloat2LabEncoded(cmsUInt16Number wLab[3], const cmsCIELab* fLab)
{
cmsCIELab Lab;
Lab.L = Clamp_L_doubleV4(fLab ->L);
Lab.a = Clamp_ab_doubleV4(fLab ->a);
Lab.b = Clamp_ab_doubleV4(fLab ->b);
wLab[0] = L2Fix4(Lab.L);
wLab[1] = ab2Fix4(Lab.a);
wLab[2] = ab2Fix4(Lab.b);
}
// Auxiliar: convert to Radians
static
cmsFloat64Number RADIANS(cmsFloat64Number deg)
{
return (deg * M_PI) / 180.;
}
// Auxiliar: atan2 but operating in degrees and returning 0 if a==b==0
static
cmsFloat64Number atan2deg(cmsFloat64Number a, cmsFloat64Number b)
{
cmsFloat64Number h;
if (a == 0 && b == 0)
h = 0;
else
h = atan2(a, b);
h *= (180. / M_PI);
while (h > 360.)
h -= 360.;
while ( h < 0)
h += 360.;
return h;
}
// Auxiliar: Square
static
cmsFloat64Number Sqr(cmsFloat64Number v)
{
return v * v;
}
// From cylindrical coordinates. No check is performed, then negative values are allowed
void CMSEXPORT cmsLab2LCh(cmsCIELCh* LCh, const cmsCIELab* Lab)
{
LCh -> L = Lab -> L;
LCh -> C = pow(Sqr(Lab ->a) + Sqr(Lab ->b), 0.5);
LCh -> h = atan2deg(Lab ->b, Lab ->a);
}
// To cylindrical coordinates. No check is performed, then negative values are allowed
void CMSEXPORT cmsLCh2Lab(cmsCIELab* Lab, const cmsCIELCh* LCh)
{
cmsFloat64Number h = (LCh -> h * M_PI) / 180.0;
Lab -> L = LCh -> L;
Lab -> a = LCh -> C * cos(h);
Lab -> b = LCh -> C * sin(h);
}
// In XYZ All 3 components are encoded using 1.15 fixed point
static
cmsUInt16Number XYZ2Fix(cmsFloat64Number d)
{
return _cmsQuickSaturateWord(d * 32768.0);
}
void CMSEXPORT cmsFloat2XYZEncoded(cmsUInt16Number XYZ[3], const cmsCIEXYZ* fXYZ)
{
cmsCIEXYZ xyz;
xyz.X = fXYZ -> X;
xyz.Y = fXYZ -> Y;
xyz.Z = fXYZ -> Z;
// Clamp to encodeable values.
if (xyz.Y <= 0) {
xyz.X = 0;
xyz.Y = 0;
xyz.Z = 0;
}
if (xyz.X > MAX_ENCODEABLE_XYZ)
xyz.X = MAX_ENCODEABLE_XYZ;
if (xyz.X < 0)
xyz.X = 0;
if (xyz.Y > MAX_ENCODEABLE_XYZ)
xyz.Y = MAX_ENCODEABLE_XYZ;
if (xyz.Y < 0)
xyz.Y = 0;
if (xyz.Z > MAX_ENCODEABLE_XYZ)
xyz.Z = MAX_ENCODEABLE_XYZ;
if (xyz.Z < 0)
xyz.Z = 0;
XYZ[0] = XYZ2Fix(xyz.X);
XYZ[1] = XYZ2Fix(xyz.Y);
XYZ[2] = XYZ2Fix(xyz.Z);
}
// To convert from Fixed 1.15 point to cmsFloat64Number
static
cmsFloat64Number XYZ2float(cmsUInt16Number v)
{
cmsS15Fixed16Number fix32;
// From 1.15 to 15.16
fix32 = v << 1;
// From fixed 15.16 to cmsFloat64Number
return _cms15Fixed16toDouble(fix32);
}
void CMSEXPORT cmsXYZEncoded2Float(cmsCIEXYZ* fXYZ, const cmsUInt16Number XYZ[3])
{
fXYZ -> X = XYZ2float(XYZ[0]);
fXYZ -> Y = XYZ2float(XYZ[1]);
fXYZ -> Z = XYZ2float(XYZ[2]);
}
// Returns dE on two Lab values
cmsFloat64Number CMSEXPORT cmsDeltaE(const cmsCIELab* Lab1, const cmsCIELab* Lab2)
{
cmsFloat64Number dL, da, db;
dL = fabs(Lab1 -> L - Lab2 -> L);
da = fabs(Lab1 -> a - Lab2 -> a);
db = fabs(Lab1 -> b - Lab2 -> b);
return pow(Sqr(dL) + Sqr(da) + Sqr(db), 0.5);
}
// Return the CIE94 Delta E
cmsFloat64Number CMSEXPORT cmsCIE94DeltaE(const cmsCIELab* Lab1, const cmsCIELab* Lab2)
{
cmsCIELCh LCh1, LCh2;
cmsFloat64Number dE, dL, dC, dh, dhsq;
cmsFloat64Number c12, sc, sh;
dL = fabs(Lab1 ->L - Lab2 ->L);
cmsLab2LCh(&LCh1, Lab1);
cmsLab2LCh(&LCh2, Lab2);
dC = fabs(LCh1.C - LCh2.C);
dE = cmsDeltaE(Lab1, Lab2);
dhsq = Sqr(dE) - Sqr(dL) - Sqr(dC);
if (dhsq < 0)
dh = 0;
else
dh = pow(dhsq, 0.5);
c12 = sqrt(LCh1.C * LCh2.C);
sc = 1.0 + (0.048 * c12);
sh = 1.0 + (0.014 * c12);
return sqrt(Sqr(dL) + Sqr(dC) / Sqr(sc) + Sqr(dh) / Sqr(sh));
}
// Auxiliary
static
cmsFloat64Number ComputeLBFD(const cmsCIELab* Lab)
{
cmsFloat64Number yt;
if (Lab->L > 7.996969)
yt = (Sqr((Lab->L+16)/116)*((Lab->L+16)/116))*100;
else
yt = 100 * (Lab->L / 903.3);
return (54.6 * (M_LOG10E * (log(yt + 1.5))) - 9.6);
}
// bfd - gets BFD(1:1) difference between Lab1, Lab2
cmsFloat64Number CMSEXPORT cmsBFDdeltaE(const cmsCIELab* Lab1, const cmsCIELab* Lab2)
{
cmsFloat64Number lbfd1,lbfd2,AveC,Aveh,dE,deltaL,
deltaC,deltah,dc,t,g,dh,rh,rc,rt,bfd;
cmsCIELCh LCh1, LCh2;
lbfd1 = ComputeLBFD(Lab1);
lbfd2 = ComputeLBFD(Lab2);
deltaL = lbfd2 - lbfd1;
cmsLab2LCh(&LCh1, Lab1);
cmsLab2LCh(&LCh2, Lab2);
deltaC = LCh2.C - LCh1.C;
AveC = (LCh1.C+LCh2.C)/2;
Aveh = (LCh1.h+LCh2.h)/2;
dE = cmsDeltaE(Lab1, Lab2);
if (Sqr(dE)>(Sqr(Lab2->L-Lab1->L)+Sqr(deltaC)))
deltah = sqrt(Sqr(dE)-Sqr(Lab2->L-Lab1->L)-Sqr(deltaC));
else
deltah =0;
dc = 0.035 * AveC / (1 + 0.00365 * AveC)+0.521;
g = sqrt(Sqr(Sqr(AveC))/(Sqr(Sqr(AveC))+14000));
t = 0.627+(0.055*cos((Aveh-254)/(180/M_PI))-
0.040*cos((2*Aveh-136)/(180/M_PI))+
0.070*cos((3*Aveh-31)/(180/M_PI))+
0.049*cos((4*Aveh+114)/(180/M_PI))-
0.015*cos((5*Aveh-103)/(180/M_PI)));
dh = dc*(g*t+1-g);
rh = -0.260*cos((Aveh-308)/(180/M_PI))-
0.379*cos((2*Aveh-160)/(180/M_PI))-
0.636*cos((3*Aveh+254)/(180/M_PI))+
0.226*cos((4*Aveh+140)/(180/M_PI))-
0.194*cos((5*Aveh+280)/(180/M_PI));
rc = sqrt((AveC*AveC*AveC*AveC*AveC*AveC)/((AveC*AveC*AveC*AveC*AveC*AveC)+70000000));
rt = rh*rc;
bfd = sqrt(Sqr(deltaL)+Sqr(deltaC/dc)+Sqr(deltah/dh)+(rt*(deltaC/dc)*(deltah/dh)));
return bfd;
}
// cmc - CMC(l:c) difference between Lab1, Lab2
cmsFloat64Number CMSEXPORT cmsCMCdeltaE(const cmsCIELab* Lab1, const cmsCIELab* Lab2, cmsFloat64Number l, cmsFloat64Number c)
{
cmsFloat64Number dE,dL,dC,dh,sl,sc,sh,t,f,cmc;
cmsCIELCh LCh1, LCh2;
if (Lab1 ->L == 0 && Lab2 ->L == 0) return 0;
cmsLab2LCh(&LCh1, Lab1);
cmsLab2LCh(&LCh2, Lab2);
dL = Lab2->L-Lab1->L;
dC = LCh2.C-LCh1.C;
dE = cmsDeltaE(Lab1, Lab2);
if (Sqr(dE)>(Sqr(dL)+Sqr(dC)))
dh = sqrt(Sqr(dE)-Sqr(dL)-Sqr(dC));
else
dh =0;
if ((LCh1.h > 164) && (LCh1.h < 345))
t = 0.56 + fabs(0.2 * cos(((LCh1.h + 168)/(180/M_PI))));
else
t = 0.36 + fabs(0.4 * cos(((LCh1.h + 35 )/(180/M_PI))));
sc = 0.0638 * LCh1.C / (1 + 0.0131 * LCh1.C) + 0.638;
sl = 0.040975 * Lab1->L /(1 + 0.01765 * Lab1->L);
if (Lab1->L<16)
sl = 0.511;
f = sqrt((LCh1.C * LCh1.C * LCh1.C * LCh1.C)/((LCh1.C * LCh1.C * LCh1.C * LCh1.C)+1900));
sh = sc*(t*f+1-f);
cmc = sqrt(Sqr(dL/(l*sl))+Sqr(dC/(c*sc))+Sqr(dh/sh));
return cmc;
}
// dE2000 The weightings KL, KC and KH can be modified to reflect the relative
// importance of lightness, chroma and hue in different industrial applications
cmsFloat64Number CMSEXPORT cmsCIE2000DeltaE(const cmsCIELab* Lab1, const cmsCIELab* Lab2,
cmsFloat64Number Kl, cmsFloat64Number Kc, cmsFloat64Number Kh)
{
cmsFloat64Number L1 = Lab1->L;
cmsFloat64Number a1 = Lab1->a;
cmsFloat64Number b1 = Lab1->b;
cmsFloat64Number C = sqrt( Sqr(a1) + Sqr(b1) );
cmsFloat64Number Ls = Lab2 ->L;
cmsFloat64Number as = Lab2 ->a;
cmsFloat64Number bs = Lab2 ->b;
cmsFloat64Number Cs = sqrt( Sqr(as) + Sqr(bs) );
cmsFloat64Number G = 0.5 * ( 1 - sqrt(pow((C + Cs) / 2 , 7.0) / (pow((C + Cs) / 2, 7.0) + pow(25.0, 7.0) ) ));
cmsFloat64Number a_p = (1 + G ) * a1;
cmsFloat64Number b_p = b1;
cmsFloat64Number C_p = sqrt( Sqr(a_p) + Sqr(b_p));
cmsFloat64Number h_p = atan2deg(b_p, a_p);
cmsFloat64Number a_ps = (1 + G) * as;
cmsFloat64Number b_ps = bs;
cmsFloat64Number C_ps = sqrt(Sqr(a_ps) + Sqr(b_ps));
cmsFloat64Number h_ps = atan2deg(b_ps, a_ps);
cmsFloat64Number meanC_p =(C_p + C_ps) / 2;
cmsFloat64Number hps_plus_hp = h_ps + h_p;
cmsFloat64Number hps_minus_hp = h_ps - h_p;
cmsFloat64Number meanh_p = fabs(hps_minus_hp) <= 180.000001 ? (hps_plus_hp)/2 :
(hps_plus_hp) < 360 ? (hps_plus_hp + 360)/2 :
(hps_plus_hp - 360)/2;
cmsFloat64Number delta_h = (hps_minus_hp) <= -180.000001 ? (hps_minus_hp + 360) :
(hps_minus_hp) > 180 ? (hps_minus_hp - 360) :
(hps_minus_hp);
cmsFloat64Number delta_L = (Ls - L1);
cmsFloat64Number delta_C = (C_ps - C_p );
cmsFloat64Number delta_H =2 * sqrt(C_ps*C_p) * sin(RADIANS(delta_h) / 2);
cmsFloat64Number T = 1 - 0.17 * cos(RADIANS(meanh_p-30))
+ 0.24 * cos(RADIANS(2*meanh_p))
+ 0.32 * cos(RADIANS(3*meanh_p + 6))
- 0.2 * cos(RADIANS(4*meanh_p - 63));
cmsFloat64Number Sl = 1 + (0.015 * Sqr((Ls + L1) /2- 50) )/ sqrt(20 + Sqr( (Ls+L1)/2 - 50) );
cmsFloat64Number Sc = 1 + 0.045 * (C_p + C_ps)/2;
cmsFloat64Number Sh = 1 + 0.015 * ((C_ps + C_p)/2) * T;
cmsFloat64Number delta_ro = 30 * exp( -Sqr(((meanh_p - 275 ) / 25)));
cmsFloat64Number Rc = 2 * sqrt(( pow(meanC_p, 7.0) )/( pow(meanC_p, 7.0) + pow(25.0, 7.0)));
cmsFloat64Number Rt = -sin(2 * RADIANS(delta_ro)) * Rc;
cmsFloat64Number deltaE00 = sqrt( Sqr(delta_L /(Sl * Kl)) +
Sqr(delta_C/(Sc * Kc)) +
Sqr(delta_H/(Sh * Kh)) +
Rt*(delta_C/(Sc * Kc)) * (delta_H / (Sh * Kh)));
return deltaE00;
}
// This function returns a number of gridpoints to be used as LUT table. It assumes same number
// of gripdpoints in all dimensions. Flags may override the choice.
int _cmsReasonableGridpointsByColorspace(cmsColorSpaceSignature Colorspace, cmsUInt32Number dwFlags)
{
int nChannels;
// Already specified?
if (dwFlags & 0x00FF0000) {
// Yes, grab'em
return (dwFlags >> 16) & 0xFF;
}
nChannels = cmsChannelsOf(Colorspace);
// HighResPrecalc is maximum resolution
if (dwFlags & cmsFLAGS_HIGHRESPRECALC) {
if (nChannels > 4)
return 7; // 7 for Hifi
if (nChannels == 4) // 23 for CMYK
return 23;
return 49; // 49 for RGB and others
}
// LowResPrecal is lower resolution
if (dwFlags & cmsFLAGS_LOWRESPRECALC) {
if (nChannels > 4)
return 6; // 6 for more than 4 channels
if (nChannels == 1)
return 33; // For monochrome
return 17; // 17 for remaining
}
// Default values
if (nChannels > 4)
return 7; // 7 for Hifi
if (nChannels == 4)
return 17; // 17 for CMYK
return 33; // 33 for RGB
}
cmsBool _cmsEndPointsBySpace(cmsColorSpaceSignature Space,
cmsUInt16Number **White,
cmsUInt16Number **Black,
cmsUInt32Number *nOutputs)
{
// Only most common spaces
static cmsUInt16Number RGBblack[4] = { 0, 0, 0 };
static cmsUInt16Number RGBwhite[4] = { 0xffff, 0xffff, 0xffff };
static cmsUInt16Number CMYKblack[4] = { 0xffff, 0xffff, 0xffff, 0xffff }; // 400% of ink
static cmsUInt16Number CMYKwhite[4] = { 0, 0, 0, 0 };
static cmsUInt16Number LABblack[4] = { 0, 0x8080, 0x8080 }; // V4 Lab encoding
static cmsUInt16Number LABwhite[4] = { 0xFFFF, 0x8080, 0x8080 };
static cmsUInt16Number CMYblack[4] = { 0xffff, 0xffff, 0xffff };
static cmsUInt16Number CMYwhite[4] = { 0, 0, 0 };
static cmsUInt16Number Grayblack[4] = { 0 };
static cmsUInt16Number GrayWhite[4] = { 0xffff };
switch (Space) {
case cmsSigGrayData: if (White) *White = GrayWhite;
if (Black) *Black = Grayblack;
if (nOutputs) *nOutputs = 1;
return TRUE;
case cmsSigRgbData: if (White) *White = RGBwhite;
if (Black) *Black = RGBblack;
if (nOutputs) *nOutputs = 3;
return TRUE;
case cmsSigLabData: if (White) *White = LABwhite;
if (Black) *Black = LABblack;
if (nOutputs) *nOutputs = 3;
return TRUE;
case cmsSigCmykData: if (White) *White = CMYKwhite;
if (Black) *Black = CMYKblack;
if (nOutputs) *nOutputs = 4;
return TRUE;
case cmsSigCmyData: if (White) *White = CMYwhite;
if (Black) *Black = CMYblack;
if (nOutputs) *nOutputs = 3;
return TRUE;
default:;
}
return FALSE;
}
// Several utilities -------------------------------------------------------
// Translate from our colorspace to ICC representation
cmsColorSpaceSignature CMSEXPORT _cmsICCcolorSpace(int OurNotation)
{
switch (OurNotation) {
case 1:
case PT_GRAY: return cmsSigGrayData;
case 2:
case PT_RGB: return cmsSigRgbData;
case PT_CMY: return cmsSigCmyData;
case PT_CMYK: return cmsSigCmykData;
case PT_YCbCr:return cmsSigYCbCrData;
case PT_YUV: return cmsSigLuvData;
case PT_XYZ: return cmsSigXYZData;
case PT_LabV2:
case PT_Lab: return cmsSigLabData;
case PT_YUVK: return cmsSigLuvKData;
case PT_HSV: return cmsSigHsvData;
case PT_HLS: return cmsSigHlsData;
case PT_Yxy: return cmsSigYxyData;
case PT_MCH1: return cmsSigMCH1Data;
case PT_MCH2: return cmsSigMCH2Data;
case PT_MCH3: return cmsSigMCH3Data;
case PT_MCH4: return cmsSigMCH4Data;
case PT_MCH5: return cmsSigMCH5Data;
case PT_MCH6: return cmsSigMCH6Data;
case PT_MCH7: return cmsSigMCH7Data;
case PT_MCH8: return cmsSigMCH8Data;
case PT_MCH9: return cmsSigMCH9Data;
case PT_MCH10: return cmsSigMCHAData;
case PT_MCH11: return cmsSigMCHBData;
case PT_MCH12: return cmsSigMCHCData;
case PT_MCH13: return cmsSigMCHDData;
case PT_MCH14: return cmsSigMCHEData;
case PT_MCH15: return cmsSigMCHFData;
default: return (cmsColorSpaceSignature) (-1);
}
}
int CMSEXPORT _cmsLCMScolorSpace(cmsColorSpaceSignature ProfileSpace)
{
switch (ProfileSpace) {
case cmsSigGrayData: return PT_GRAY;
case cmsSigRgbData: return PT_RGB;
case cmsSigCmyData: return PT_CMY;
case cmsSigCmykData: return PT_CMYK;
case cmsSigYCbCrData:return PT_YCbCr;
case cmsSigLuvData: return PT_YUV;
case cmsSigXYZData: return PT_XYZ;
case cmsSigLabData: return PT_Lab;
case cmsSigLuvKData: return PT_YUVK;
case cmsSigHsvData: return PT_HSV;
case cmsSigHlsData: return PT_HLS;
case cmsSigYxyData: return PT_Yxy;
case cmsSig1colorData:
case cmsSigMCH1Data: return PT_MCH1;
case cmsSig2colorData:
case cmsSigMCH2Data: return PT_MCH2;
case cmsSig3colorData:
case cmsSigMCH3Data: return PT_MCH3;
case cmsSig4colorData:
case cmsSigMCH4Data: return PT_MCH4;
case cmsSig5colorData:
case cmsSigMCH5Data: return PT_MCH5;
case cmsSig6colorData:
case cmsSigMCH6Data: return PT_MCH6;
case cmsSigMCH7Data:
case cmsSig7colorData:return PT_MCH7;
case cmsSigMCH8Data:
case cmsSig8colorData:return PT_MCH8;
case cmsSigMCH9Data:
case cmsSig9colorData:return PT_MCH9;
case cmsSigMCHAData:
case cmsSig10colorData:return PT_MCH10;
case cmsSigMCHBData:
case cmsSig11colorData:return PT_MCH11;
case cmsSigMCHCData:
case cmsSig12colorData:return PT_MCH12;
case cmsSigMCHDData:
case cmsSig13colorData:return PT_MCH13;
case cmsSigMCHEData:
case cmsSig14colorData:return PT_MCH14;
case cmsSigMCHFData:
case cmsSig15colorData:return PT_MCH15;
default: return (cmsColorSpaceSignature) (-1);
}
}
cmsUInt32Number CMSEXPORT cmsChannelsOf(cmsColorSpaceSignature ColorSpace)
{
switch (ColorSpace) {
case cmsSigMCH1Data:
case cmsSig1colorData:
case cmsSigGrayData: return 1;
case cmsSigMCH2Data:
case cmsSig2colorData: return 2;
case cmsSigXYZData:
case cmsSigLabData:
case cmsSigLuvData:
case cmsSigYCbCrData:
case cmsSigYxyData:
case cmsSigRgbData:
case cmsSigHsvData:
case cmsSigHlsData:
case cmsSigCmyData:
case cmsSigMCH3Data:
case cmsSig3colorData: return 3;
case cmsSigLuvKData:
case cmsSigCmykData:
case cmsSigMCH4Data:
case cmsSig4colorData: return 4;
case cmsSigMCH5Data:
case cmsSig5colorData: return 5;
case cmsSigMCH6Data:
case cmsSig6colorData: return 6;
case cmsSigMCH7Data:
case cmsSig7colorData: return 7;
case cmsSigMCH8Data:
case cmsSig8colorData: return 8;
case cmsSigMCH9Data:
case cmsSig9colorData: return 9;
case cmsSigMCHAData:
case cmsSig10colorData: return 10;
case cmsSigMCHBData:
case cmsSig11colorData: return 11;
case cmsSigMCHCData:
case cmsSig12colorData: return 12;
case cmsSigMCHDData:
case cmsSig13colorData: return 13;
case cmsSigMCHEData:
case cmsSig14colorData: return 14;
case cmsSigMCHFData:
case cmsSig15colorData: return 15;
default: return 3;
}
}
|
39 | ./little-cms/src/cmsmtrx.c | //---------------------------------------------------------------------------------
//
// Little Color Management System
// Copyright (c) 1998-2012 Marti Maria Saguer
//
// Permission is hereby granted, free of charge, to any person obtaining
// a copy of this software and associated documentation files (the "Software"),
// to deal in the Software without restriction, including without limitation
// the rights to use, copy, modify, merge, publish, distribute, sublicense,
// and/or sell copies of the Software, and to permit persons to whom the Software
// is furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO
// THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
// LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
// OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
// WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
//
//---------------------------------------------------------------------------------
//
#include "lcms2_internal.h"
#define DSWAP(x, y) {cmsFloat64Number tmp = (x); (x)=(y); (y)=tmp;}
// Initiate a vector
void CMSEXPORT _cmsVEC3init(cmsVEC3* r, cmsFloat64Number x, cmsFloat64Number y, cmsFloat64Number z)
{
r -> n[VX] = x;
r -> n[VY] = y;
r -> n[VZ] = z;
}
// Vector substraction
void CMSEXPORT _cmsVEC3minus(cmsVEC3* r, const cmsVEC3* a, const cmsVEC3* b)
{
r -> n[VX] = a -> n[VX] - b -> n[VX];
r -> n[VY] = a -> n[VY] - b -> n[VY];
r -> n[VZ] = a -> n[VZ] - b -> n[VZ];
}
// Vector cross product
void CMSEXPORT _cmsVEC3cross(cmsVEC3* r, const cmsVEC3* u, const cmsVEC3* v)
{
r ->n[VX] = u->n[VY] * v->n[VZ] - v->n[VY] * u->n[VZ];
r ->n[VY] = u->n[VZ] * v->n[VX] - v->n[VZ] * u->n[VX];
r ->n[VZ] = u->n[VX] * v->n[VY] - v->n[VX] * u->n[VY];
}
// Vector dot product
cmsFloat64Number CMSEXPORT _cmsVEC3dot(const cmsVEC3* u, const cmsVEC3* v)
{
return u->n[VX] * v->n[VX] + u->n[VY] * v->n[VY] + u->n[VZ] * v->n[VZ];
}
// Euclidean length
cmsFloat64Number CMSEXPORT _cmsVEC3length(const cmsVEC3* a)
{
return sqrt(a ->n[VX] * a ->n[VX] +
a ->n[VY] * a ->n[VY] +
a ->n[VZ] * a ->n[VZ]);
}
// Euclidean distance
cmsFloat64Number CMSEXPORT _cmsVEC3distance(const cmsVEC3* a, const cmsVEC3* b)
{
cmsFloat64Number d1 = a ->n[VX] - b ->n[VX];
cmsFloat64Number d2 = a ->n[VY] - b ->n[VY];
cmsFloat64Number d3 = a ->n[VZ] - b ->n[VZ];
return sqrt(d1*d1 + d2*d2 + d3*d3);
}
// 3x3 Identity
void CMSEXPORT _cmsMAT3identity(cmsMAT3* a)
{
_cmsVEC3init(&a-> v[0], 1.0, 0.0, 0.0);
_cmsVEC3init(&a-> v[1], 0.0, 1.0, 0.0);
_cmsVEC3init(&a-> v[2], 0.0, 0.0, 1.0);
}
static
cmsBool CloseEnough(cmsFloat64Number a, cmsFloat64Number b)
{
return fabs(b - a) < (1.0 / 65535.0);
}
cmsBool CMSEXPORT _cmsMAT3isIdentity(const cmsMAT3* a)
{
cmsMAT3 Identity;
int i, j;
_cmsMAT3identity(&Identity);
for (i=0; i < 3; i++)
for (j=0; j < 3; j++)
if (!CloseEnough(a ->v[i].n[j], Identity.v[i].n[j])) return FALSE;
return TRUE;
}
// Multiply two matrices
void CMSEXPORT _cmsMAT3per(cmsMAT3* r, const cmsMAT3* a, const cmsMAT3* b)
{
#define ROWCOL(i, j) \
a->v[i].n[0]*b->v[0].n[j] + a->v[i].n[1]*b->v[1].n[j] + a->v[i].n[2]*b->v[2].n[j]
_cmsVEC3init(&r-> v[0], ROWCOL(0,0), ROWCOL(0,1), ROWCOL(0,2));
_cmsVEC3init(&r-> v[1], ROWCOL(1,0), ROWCOL(1,1), ROWCOL(1,2));
_cmsVEC3init(&r-> v[2], ROWCOL(2,0), ROWCOL(2,1), ROWCOL(2,2));
#undef ROWCOL //(i, j)
}
// Inverse of a matrix b = a^(-1)
cmsBool CMSEXPORT _cmsMAT3inverse(const cmsMAT3* a, cmsMAT3* b)
{
cmsFloat64Number det, c0, c1, c2;
c0 = a -> v[1].n[1]*a -> v[2].n[2] - a -> v[1].n[2]*a -> v[2].n[1];
c1 = -a -> v[1].n[0]*a -> v[2].n[2] + a -> v[1].n[2]*a -> v[2].n[0];
c2 = a -> v[1].n[0]*a -> v[2].n[1] - a -> v[1].n[1]*a -> v[2].n[0];
det = a -> v[0].n[0]*c0 + a -> v[0].n[1]*c1 + a -> v[0].n[2]*c2;
if (fabs(det) < MATRIX_DET_TOLERANCE) return FALSE; // singular matrix; can't invert
b -> v[0].n[0] = c0/det;
b -> v[0].n[1] = (a -> v[0].n[2]*a -> v[2].n[1] - a -> v[0].n[1]*a -> v[2].n[2])/det;
b -> v[0].n[2] = (a -> v[0].n[1]*a -> v[1].n[2] - a -> v[0].n[2]*a -> v[1].n[1])/det;
b -> v[1].n[0] = c1/det;
b -> v[1].n[1] = (a -> v[0].n[0]*a -> v[2].n[2] - a -> v[0].n[2]*a -> v[2].n[0])/det;
b -> v[1].n[2] = (a -> v[0].n[2]*a -> v[1].n[0] - a -> v[0].n[0]*a -> v[1].n[2])/det;
b -> v[2].n[0] = c2/det;
b -> v[2].n[1] = (a -> v[0].n[1]*a -> v[2].n[0] - a -> v[0].n[0]*a -> v[2].n[1])/det;
b -> v[2].n[2] = (a -> v[0].n[0]*a -> v[1].n[1] - a -> v[0].n[1]*a -> v[1].n[0])/det;
return TRUE;
}
// Solve a system in the form Ax = b
cmsBool CMSEXPORT _cmsMAT3solve(cmsVEC3* x, cmsMAT3* a, cmsVEC3* b)
{
cmsMAT3 m, a_1;
memmove(&m, a, sizeof(cmsMAT3));
if (!_cmsMAT3inverse(&m, &a_1)) return FALSE; // Singular matrix
_cmsMAT3eval(x, &a_1, b);
return TRUE;
}
// Evaluate a vector across a matrix
void CMSEXPORT _cmsMAT3eval(cmsVEC3* r, const cmsMAT3* a, const cmsVEC3* v)
{
r->n[VX] = a->v[0].n[VX]*v->n[VX] + a->v[0].n[VY]*v->n[VY] + a->v[0].n[VZ]*v->n[VZ];
r->n[VY] = a->v[1].n[VX]*v->n[VX] + a->v[1].n[VY]*v->n[VY] + a->v[1].n[VZ]*v->n[VZ];
r->n[VZ] = a->v[2].n[VX]*v->n[VX] + a->v[2].n[VY]*v->n[VY] + a->v[2].n[VZ]*v->n[VZ];
}
|
40 | ./little-cms/src/cmserr.c | //---------------------------------------------------------------------------------
//
// Little Color Management System
// Copyright (c) 1998-2012 Marti Maria Saguer
//
// Permission is hereby granted, free of charge, to any person obtaining
// a copy of this software and associated documentation files (the "Software"),
// to deal in the Software without restriction, including without limitation
// the rights to use, copy, modify, merge, publish, distribute, sublicense,
// and/or sell copies of the Software, and to permit persons to whom the Software
// is furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO
// THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
// LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
// OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
// WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
//
//---------------------------------------------------------------------------------
#include "lcms2_internal.h"
// I am so tired about incompatibilities on those functions that here are some replacements
// that hopefully would be fully portable.
// compare two strings ignoring case
int CMSEXPORT cmsstrcasecmp(const char* s1, const char* s2)
{
register const unsigned char *us1 = (const unsigned char *)s1,
*us2 = (const unsigned char *)s2;
while (toupper(*us1) == toupper(*us2++))
if (*us1++ == '\0')
return (0);
return (toupper(*us1) - toupper(*--us2));
}
// long int because C99 specifies ftell in such way (7.19.9.2)
long int CMSEXPORT cmsfilelength(FILE* f)
{
long int p , n;
p = ftell(f); // register current file position
if (fseek(f, 0, SEEK_END) != 0) {
return -1;
}
n = ftell(f);
fseek(f, p, SEEK_SET); // file position restored
return n;
}
// Memory handling ------------------------------------------------------------------
//
// This is the interface to low-level memory management routines. By default a simple
// wrapping to malloc/free/realloc is provided, although there is a limit on the max
// amount of memoy that can be reclaimed. This is mostly as a safety feature to
// prevent bogus or malintentionated code to allocate huge blocks that otherwise lcms
// would never need.
#define MAX_MEMORY_FOR_ALLOC ((cmsUInt32Number)(1024U*1024U*512U))
// User may override this behaviour by using a memory plug-in, which basically replaces
// the default memory management functions. In this case, no check is performed and it
// is up to the plug-in writter to keep in the safe side. There are only three functions
// required to be implemented: malloc, realloc and free, although the user may want to
// replace the optional mallocZero, calloc and dup as well.
cmsBool _cmsRegisterMemHandlerPlugin(cmsPluginBase* Plugin);
// *********************************************************************************
// This is the default memory allocation function. It does a very coarse
// check of amout of memory, just to prevent exploits
static
void* _cmsMallocDefaultFn(cmsContext ContextID, cmsUInt32Number size)
{
if (size > MAX_MEMORY_FOR_ALLOC) return NULL; // Never allow over maximum
return (void*) malloc(size);
cmsUNUSED_PARAMETER(ContextID);
}
// Generic allocate & zero
static
void* _cmsMallocZeroDefaultFn(cmsContext ContextID, cmsUInt32Number size)
{
void *pt = _cmsMalloc(ContextID, size);
if (pt == NULL) return NULL;
memset(pt, 0, size);
return pt;
}
// The default free function. The only check proformed is against NULL pointers
static
void _cmsFreeDefaultFn(cmsContext ContextID, void *Ptr)
{
// free(NULL) is defined a no-op by C99, therefore it is safe to
// avoid the check, but it is here just in case...
if (Ptr) free(Ptr);
cmsUNUSED_PARAMETER(ContextID);
}
// The default realloc function. Again it check for exploits. If Ptr is NULL,
// realloc behaves the same way as malloc and allocates a new block of size bytes.
static
void* _cmsReallocDefaultFn(cmsContext ContextID, void* Ptr, cmsUInt32Number size)
{
if (size > MAX_MEMORY_FOR_ALLOC) return NULL; // Never realloc over 512Mb
return realloc(Ptr, size);
cmsUNUSED_PARAMETER(ContextID);
}
// The default calloc function. Allocates an array of num elements, each one of size bytes
// all memory is initialized to zero.
static
void* _cmsCallocDefaultFn(cmsContext ContextID, cmsUInt32Number num, cmsUInt32Number size)
{
cmsUInt32Number Total = num * size;
// Preserve calloc behaviour
if (Total == 0) return NULL;
// Safe check for overflow.
if (num >= UINT_MAX / size) return NULL;
// Check for overflow
if (Total < num || Total < size) {
return NULL;
}
if (Total > MAX_MEMORY_FOR_ALLOC) return NULL; // Never alloc over 512Mb
return _cmsMallocZero(ContextID, Total);
}
// Generic block duplication
static
void* _cmsDupDefaultFn(cmsContext ContextID, const void* Org, cmsUInt32Number size)
{
void* mem;
if (size > MAX_MEMORY_FOR_ALLOC) return NULL; // Never dup over 512Mb
mem = _cmsMalloc(ContextID, size);
if (mem != NULL && Org != NULL)
memmove(mem, Org, size);
return mem;
}
// Pointers to malloc and _cmsFree functions in current environment
static void * (* MallocPtr)(cmsContext ContextID, cmsUInt32Number size) = _cmsMallocDefaultFn;
static void * (* MallocZeroPtr)(cmsContext ContextID, cmsUInt32Number size) = _cmsMallocZeroDefaultFn;
static void (* FreePtr)(cmsContext ContextID, void *Ptr) = _cmsFreeDefaultFn;
static void * (* ReallocPtr)(cmsContext ContextID, void *Ptr, cmsUInt32Number NewSize) = _cmsReallocDefaultFn;
static void * (* CallocPtr)(cmsContext ContextID, cmsUInt32Number num, cmsUInt32Number size)= _cmsCallocDefaultFn;
static void * (* DupPtr)(cmsContext ContextID, const void* Org, cmsUInt32Number size) = _cmsDupDefaultFn;
// Plug-in replacement entry
cmsBool _cmsRegisterMemHandlerPlugin(cmsPluginBase *Data)
{
cmsPluginMemHandler* Plugin = (cmsPluginMemHandler*) Data;
// NULL forces to reset to defaults
if (Data == NULL) {
MallocPtr = _cmsMallocDefaultFn;
MallocZeroPtr= _cmsMallocZeroDefaultFn;
FreePtr = _cmsFreeDefaultFn;
ReallocPtr = _cmsReallocDefaultFn;
CallocPtr = _cmsCallocDefaultFn;
DupPtr = _cmsDupDefaultFn;
return TRUE;
}
// Check for required callbacks
if (Plugin -> MallocPtr == NULL ||
Plugin -> FreePtr == NULL ||
Plugin -> ReallocPtr == NULL) return FALSE;
// Set replacement functions
MallocPtr = Plugin -> MallocPtr;
FreePtr = Plugin -> FreePtr;
ReallocPtr = Plugin -> ReallocPtr;
if (Plugin ->MallocZeroPtr != NULL) MallocZeroPtr = Plugin ->MallocZeroPtr;
if (Plugin ->CallocPtr != NULL) CallocPtr = Plugin -> CallocPtr;
if (Plugin ->DupPtr != NULL) DupPtr = Plugin -> DupPtr;
return TRUE;
}
// Generic allocate
void* CMSEXPORT _cmsMalloc(cmsContext ContextID, cmsUInt32Number size)
{
return MallocPtr(ContextID, size);
}
// Generic allocate & zero
void* CMSEXPORT _cmsMallocZero(cmsContext ContextID, cmsUInt32Number size)
{
return MallocZeroPtr(ContextID, size);
}
// Generic calloc
void* CMSEXPORT _cmsCalloc(cmsContext ContextID, cmsUInt32Number num, cmsUInt32Number size)
{
return CallocPtr(ContextID, num, size);
}
// Generic reallocate
void* CMSEXPORT _cmsRealloc(cmsContext ContextID, void* Ptr, cmsUInt32Number size)
{
return ReallocPtr(ContextID, Ptr, size);
}
// Generic free memory
void CMSEXPORT _cmsFree(cmsContext ContextID, void* Ptr)
{
if (Ptr != NULL) FreePtr(ContextID, Ptr);
}
// Generic block duplication
void* CMSEXPORT _cmsDupMem(cmsContext ContextID, const void* Org, cmsUInt32Number size)
{
return DupPtr(ContextID, Org, size);
}
// ********************************************************************************************
// Sub allocation takes care of many pointers of small size. The memory allocated in
// this way have be freed at once. Next function allocates a single chunk for linked list
// I prefer this method over realloc due to the big inpact on xput realloc may have if
// memory is being swapped to disk. This approach is safer (although that may not be true on all platforms)
static
_cmsSubAllocator_chunk* _cmsCreateSubAllocChunk(cmsContext ContextID, cmsUInt32Number Initial)
{
_cmsSubAllocator_chunk* chunk;
// 20K by default
if (Initial == 0)
Initial = 20*1024;
// Create the container
chunk = (_cmsSubAllocator_chunk*) _cmsMallocZero(ContextID, sizeof(_cmsSubAllocator_chunk));
if (chunk == NULL) return NULL;
// Initialize values
chunk ->Block = (cmsUInt8Number*) _cmsMalloc(ContextID, Initial);
if (chunk ->Block == NULL) {
// Something went wrong
_cmsFree(ContextID, chunk);
return NULL;
}
chunk ->BlockSize = Initial;
chunk ->Used = 0;
chunk ->next = NULL;
return chunk;
}
// The suballocated is nothing but a pointer to the first element in the list. We also keep
// the thread ID in this structure.
_cmsSubAllocator* _cmsCreateSubAlloc(cmsContext ContextID, cmsUInt32Number Initial)
{
_cmsSubAllocator* sub;
// Create the container
sub = (_cmsSubAllocator*) _cmsMallocZero(ContextID, sizeof(_cmsSubAllocator));
if (sub == NULL) return NULL;
sub ->ContextID = ContextID;
sub ->h = _cmsCreateSubAllocChunk(ContextID, Initial);
if (sub ->h == NULL) {
_cmsFree(ContextID, sub);
return NULL;
}
return sub;
}
// Get rid of whole linked list
void _cmsSubAllocDestroy(_cmsSubAllocator* sub)
{
_cmsSubAllocator_chunk *chunk, *n;
for (chunk = sub ->h; chunk != NULL; chunk = n) {
n = chunk->next;
if (chunk->Block != NULL) _cmsFree(sub ->ContextID, chunk->Block);
_cmsFree(sub ->ContextID, chunk);
}
// Free the header
_cmsFree(sub ->ContextID, sub);
}
// Get a pointer to small memory block.
void* _cmsSubAlloc(_cmsSubAllocator* sub, cmsUInt32Number size)
{
cmsUInt32Number Free = sub -> h ->BlockSize - sub -> h -> Used;
cmsUInt8Number* ptr;
size = _cmsALIGNMEM(size);
// Check for memory. If there is no room, allocate a new chunk of double memory size.
if (size > Free) {
_cmsSubAllocator_chunk* chunk;
cmsUInt32Number newSize;
newSize = sub -> h ->BlockSize * 2;
if (newSize < size) newSize = size;
chunk = _cmsCreateSubAllocChunk(sub -> ContextID, newSize);
if (chunk == NULL) return NULL;
// Link list
chunk ->next = sub ->h;
sub ->h = chunk;
}
ptr = sub -> h ->Block + sub -> h ->Used;
sub -> h -> Used += size;
return (void*) ptr;
}
// Error logging ******************************************************************
// There is no error handling at all. When a funtion fails, it returns proper value.
// For example, all create functions does return NULL on failure. Other return FALSE
// It may be interesting, for the developer, to know why the function is failing.
// for that reason, lcms2 does offer a logging function. This function does recive
// a ENGLISH string with some clues on what is going wrong. You can show this
// info to the end user, or just create some sort of log.
// The logging function should NOT terminate the program, as this obviously can leave
// resources. It is the programmer's responsability to check each function return code
// to make sure it didn't fail.
// Error messages are limited to MAX_ERROR_MESSAGE_LEN
#define MAX_ERROR_MESSAGE_LEN 1024
// ---------------------------------------------------------------------------------------------------------
// This is our default log error
static void DefaultLogErrorHandlerFunction(cmsContext ContextID, cmsUInt32Number ErrorCode, const char *Text);
// The current handler in actual environment
static cmsLogErrorHandlerFunction LogErrorHandler = DefaultLogErrorHandlerFunction;
// The default error logger does nothing.
static
void DefaultLogErrorHandlerFunction(cmsContext ContextID, cmsUInt32Number ErrorCode, const char *Text)
{
// fprintf(stderr, "[lcms]: %s\n", Text);
// fflush(stderr);
cmsUNUSED_PARAMETER(ContextID);
cmsUNUSED_PARAMETER(ErrorCode);
cmsUNUSED_PARAMETER(Text);
}
// Change log error
void CMSEXPORT cmsSetLogErrorHandler(cmsLogErrorHandlerFunction Fn)
{
if (Fn == NULL)
LogErrorHandler = DefaultLogErrorHandlerFunction;
else
LogErrorHandler = Fn;
}
// Log an error
// ErrorText is a text holding an english description of error.
void CMSEXPORT cmsSignalError(cmsContext ContextID, cmsUInt32Number ErrorCode, const char *ErrorText, ...)
{
va_list args;
char Buffer[MAX_ERROR_MESSAGE_LEN];
va_start(args, ErrorText);
vsnprintf(Buffer, MAX_ERROR_MESSAGE_LEN-1, ErrorText, args);
va_end(args);
// Call handler
LogErrorHandler(ContextID, ErrorCode, Buffer);
}
// Utility function to print signatures
void _cmsTagSignature2String(char String[5], cmsTagSignature sig)
{
cmsUInt32Number be;
// Convert to big endian
be = _cmsAdjustEndianess32((cmsUInt32Number) sig);
// Move chars
memmove(String, &be, 4);
// Make sure of terminator
String[4] = 0;
}
|
41 | ./little-cms/src/cmscgats.c | //---------------------------------------------------------------------------------
//
// Little Color Management System
// Copyright (c) 1998-2012 Marti Maria Saguer
//
// Permission is hereby granted, free of charge, to any person obtaining
// a copy of this software and associated documentation files (the "Software"),
// to deal in the Software without restriction, including without limitation
// the rights to use, copy, modify, merge, publish, distribute, sublicense,
// and/or sell copies of the Software, and to permit persons to whom the Software
// is furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO
// THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
// LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
// OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
// WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
//
//---------------------------------------------------------------------------------
//
#include "lcms2_internal.h"
// IT8.7 / CGATS.17-200x handling -----------------------------------------------------------------------------
#define MAXID 128 // Max length of identifier
#define MAXSTR 1024 // Max length of string
#define MAXTABLES 255 // Max Number of tables in a single stream
#define MAXINCLUDE 20 // Max number of nested includes
#define DEFAULT_DBL_FORMAT "%.10g" // Double formatting
#ifdef CMS_IS_WINDOWS_
# include <io.h>
# define DIR_CHAR '\\'
#else
# define DIR_CHAR '/'
#endif
// Symbols
typedef enum {
SNONE,
SINUM, // Integer
SDNUM, // Real
SIDENT, // Identifier
SSTRING, // string
SCOMMENT, // comment
SEOLN, // End of line
SEOF, // End of stream
SSYNERROR, // Syntax error found on stream
// Keywords
SBEGIN_DATA,
SBEGIN_DATA_FORMAT,
SEND_DATA,
SEND_DATA_FORMAT,
SKEYWORD,
SDATA_FORMAT_ID,
SINCLUDE
} SYMBOL;
// How to write the value
typedef enum {
WRITE_UNCOOKED,
WRITE_STRINGIFY,
WRITE_HEXADECIMAL,
WRITE_BINARY,
WRITE_PAIR
} WRITEMODE;
// Linked list of variable names
typedef struct _KeyVal {
struct _KeyVal* Next;
char* Keyword; // Name of variable
struct _KeyVal* NextSubkey; // If key is a dictionary, points to the next item
char* Subkey; // If key is a dictionary, points to the subkey name
char* Value; // Points to value
WRITEMODE WriteAs; // How to write the value
} KEYVALUE;
// Linked list of memory chunks (Memory sink)
typedef struct _OwnedMem {
struct _OwnedMem* Next;
void * Ptr; // Point to value
} OWNEDMEM;
// Suballocator
typedef struct _SubAllocator {
cmsUInt8Number* Block;
cmsUInt32Number BlockSize;
cmsUInt32Number Used;
} SUBALLOCATOR;
// Table. Each individual table can hold properties and rows & cols
typedef struct _Table {
char SheetType[MAXSTR]; // The first row of the IT8 (the type)
int nSamples, nPatches; // Cols, Rows
int SampleID; // Pos of ID
KEYVALUE* HeaderList; // The properties
char** DataFormat; // The binary stream descriptor
char** Data; // The binary stream
} TABLE;
// File stream being parsed
typedef struct _FileContext {
char FileName[cmsMAX_PATH]; // File name if being readed from file
FILE* Stream; // File stream or NULL if holded in memory
} FILECTX;
// This struct hold all information about an open IT8 handler.
typedef struct {
cmsUInt32Number TablesCount; // How many tables in this stream
cmsUInt32Number nTable; // The actual table
TABLE Tab[MAXTABLES];
// Memory management
OWNEDMEM* MemorySink; // The storage backend
SUBALLOCATOR Allocator; // String suballocator -- just to keep it fast
// Parser state machine
SYMBOL sy; // Current symbol
int ch; // Current character
int inum; // integer value
cmsFloat64Number dnum; // real value
char id[MAXID]; // identifier
char str[MAXSTR]; // string
// Allowed keywords & datasets. They have visibility on whole stream
KEYVALUE* ValidKeywords;
KEYVALUE* ValidSampleID;
char* Source; // Points to loc. being parsed
int lineno; // line counter for error reporting
FILECTX* FileStack[MAXINCLUDE]; // Stack of files being parsed
int IncludeSP; // Include Stack Pointer
char* MemoryBlock; // The stream if holded in memory
char DoubleFormatter[MAXID];// Printf-like 'cmsFloat64Number' formatter
cmsContext ContextID; // The threading context
} cmsIT8;
// The stream for save operations
typedef struct {
FILE* stream; // For save-to-file behaviour
cmsUInt8Number* Base;
cmsUInt8Number* Ptr; // For save-to-mem behaviour
cmsUInt32Number Used;
cmsUInt32Number Max;
} SAVESTREAM;
// ------------------------------------------------------ cmsIT8 parsing routines
// A keyword
typedef struct {
const char *id;
SYMBOL sy;
} KEYWORD;
// The keyword->symbol translation table. Sorting is required.
static const KEYWORD TabKeys[] = {
{"$INCLUDE", SINCLUDE}, // This is an extension!
{".INCLUDE", SINCLUDE}, // This is an extension!
{"BEGIN_DATA", SBEGIN_DATA },
{"BEGIN_DATA_FORMAT", SBEGIN_DATA_FORMAT },
{"DATA_FORMAT_IDENTIFIER", SDATA_FORMAT_ID},
{"END_DATA", SEND_DATA},
{"END_DATA_FORMAT", SEND_DATA_FORMAT},
{"KEYWORD", SKEYWORD}
};
#define NUMKEYS (sizeof(TabKeys)/sizeof(KEYWORD))
// Predefined properties
// A property
typedef struct {
const char *id; // The identifier
WRITEMODE as; // How is supposed to be written
} PROPERTY;
static PROPERTY PredefinedProperties[] = {
{"NUMBER_OF_FIELDS", WRITE_UNCOOKED}, // Required - NUMBER OF FIELDS
{"NUMBER_OF_SETS", WRITE_UNCOOKED}, // Required - NUMBER OF SETS
{"ORIGINATOR", WRITE_STRINGIFY}, // Required - Identifies the specific system, organization or individual that created the data file.
{"FILE_DESCRIPTOR", WRITE_STRINGIFY}, // Required - Describes the purpose or contents of the data file.
{"CREATED", WRITE_STRINGIFY}, // Required - Indicates date of creation of the data file.
{"DESCRIPTOR", WRITE_STRINGIFY}, // Required - Describes the purpose or contents of the data file.
{"DIFFUSE_GEOMETRY", WRITE_STRINGIFY}, // The diffuse geometry used. Allowed values are "sphere" or "opal".
{"MANUFACTURER", WRITE_STRINGIFY},
{"MANUFACTURE", WRITE_STRINGIFY}, // Some broken Fuji targets does store this value
{"PROD_DATE", WRITE_STRINGIFY}, // Identifies year and month of production of the target in the form yyyy:mm.
{"SERIAL", WRITE_STRINGIFY}, // Uniquely identifies individual physical target.
{"MATERIAL", WRITE_STRINGIFY}, // Identifies the material on which the target was produced using a code
// uniquely identifying th e material. This is intend ed to be used for IT8.7
// physical targets only (i.e . IT8.7/1 a nd IT8.7/2).
{"INSTRUMENTATION", WRITE_STRINGIFY}, // Used to report the specific instrumentation used (manufacturer and
// model number) to generate the data reported. This data will often
// provide more information about the particular data collected than an
// extensive list of specific details. This is particularly important for
// spectral data or data derived from spectrophotometry.
{"MEASUREMENT_SOURCE", WRITE_STRINGIFY}, // Illumination used for spectral measurements. This data helps provide
// a guide to the potential for issues of paper fluorescence, etc.
{"PRINT_CONDITIONS", WRITE_STRINGIFY}, // Used to define the characteristics of the printed sheet being reported.
// Where standard conditions have been defined (e.g., SWOP at nominal)
// named conditions may suffice. Otherwise, detailed information is
// needed.
{"SAMPLE_BACKING", WRITE_STRINGIFY}, // Identifies the backing material used behind the sample during
// measurement. Allowed values are ôblackö, ôwhiteö, or {"na".
{"CHISQ_DOF", WRITE_STRINGIFY}, // Degrees of freedom associated with the Chi squared statistic
// below properties are new in recent specs:
{"MEASUREMENT_GEOMETRY", WRITE_STRINGIFY}, // The type of measurement, either reflection or transmission, should be indicated
// along with details of the geometry and the aperture size and shape. For example,
// for transmission measurements it is important to identify 0/diffuse, diffuse/0,
// opal or integrating sphere, etc. For reflection it is important to identify 0/45,
// 45/0, sphere (specular included or excluded), etc.
{"FILTER", WRITE_STRINGIFY}, // Identifies the use of physical filter(s) during measurement. Typically used to
// denote the use of filters such as none, D65, Red, Green or Blue.
{"POLARIZATION", WRITE_STRINGIFY}, // Identifies the use of a physical polarization filter during measurement. Allowed
// values are {"yesö, ôwhiteö, ônoneö or ônaö.
{"WEIGHTING_FUNCTION", WRITE_PAIR}, // Indicates such functions as: the CIE standard observer functions used in the
// calculation of various data parameters (2 degree and 10 degree), CIE standard
// illuminant functions used in the calculation of various data parameters (e.g., D50,
// D65, etc.), density status response, etc. If used there shall be at least one
// name-value pair following the WEIGHTING_FUNCTION tag/keyword. The first attribute
// in the set shall be {"name" and shall identify the particular parameter used.
// The second shall be {"value" and shall provide the value associated with that name.
// For ASCII data, a string containing the Name and Value attribute pairs shall follow
// the weighting function keyword. A semi-colon separates attribute pairs from each
// other and within the attribute the name and value are separated by a comma.
{"COMPUTATIONAL_PARAMETER", WRITE_PAIR}, // Parameter that is used in computing a value from measured data. Name is the name
// of the calculation, parameter is the name of the parameter used in the calculation
// and value is the value of the parameter.
{"TARGET_TYPE", WRITE_STRINGIFY}, // The type of target being measured, e.g. IT8.7/1, IT8.7/3, user defined, etc.
{"COLORANT", WRITE_STRINGIFY}, // Identifies the colorant(s) used in creating the target.
{"TABLE_DESCRIPTOR", WRITE_STRINGIFY}, // Describes the purpose or contents of a data table.
{"TABLE_NAME", WRITE_STRINGIFY} // Provides a short name for a data table.
};
#define NUMPREDEFINEDPROPS (sizeof(PredefinedProperties)/sizeof(PROPERTY))
// Predefined sample types on dataset
static const char* PredefinedSampleID[] = {
"SAMPLE_ID", // Identifies sample that data represents
"STRING", // Identifies label, or other non-machine readable value.
// Value must begin and end with a " symbol
"CMYK_C", // Cyan component of CMYK data expressed as a percentage
"CMYK_M", // Magenta component of CMYK data expressed as a percentage
"CMYK_Y", // Yellow component of CMYK data expressed as a percentage
"CMYK_K", // Black component of CMYK data expressed as a percentage
"D_RED", // Red filter density
"D_GREEN", // Green filter density
"D_BLUE", // Blue filter density
"D_VIS", // Visual filter density
"D_MAJOR_FILTER", // Major filter d ensity
"RGB_R", // Red component of RGB data
"RGB_G", // Green component of RGB data
"RGB_B", // Blue com ponent of RGB data
"SPECTRAL_NM", // Wavelength of measurement expressed in nanometers
"SPECTRAL_PCT", // Percentage reflectance/transmittance
"SPECTRAL_DEC", // Reflectance/transmittance
"XYZ_X", // X component of tristimulus data
"XYZ_Y", // Y component of tristimulus data
"XYZ_Z", // Z component of tristimulus data
"XYY_X" // x component of chromaticity data
"XYY_Y", // y component of chromaticity data
"XYY_CAPY", // Y component of tristimulus data
"LAB_L", // L* component of Lab data
"LAB_A", // a* component of Lab data
"LAB_B", // b* component of Lab data
"LAB_C", // C*ab component of Lab data
"LAB_H", // hab component of Lab data
"LAB_DE", // CIE dE
"LAB_DE_94", // CIE dE using CIE 94
"LAB_DE_CMC", // dE using CMC
"LAB_DE_2000", // CIE dE using CIE DE 2000
"MEAN_DE", // Mean Delta E (LAB_DE) of samples compared to batch average
// (Used for data files for ANSI IT8.7/1 and IT8.7/2 targets)
"STDEV_X", // Standard deviation of X (tristimulus data)
"STDEV_Y", // Standard deviation of Y (tristimulus data)
"STDEV_Z", // Standard deviation of Z (tristimulus data)
"STDEV_L", // Standard deviation of L*
"STDEV_A", // Standard deviation of a*
"STDEV_B", // Standard deviation of b*
"STDEV_DE", // Standard deviation of CIE dE
"CHI_SQD_PAR"}; // The average of the standard deviations of L*, a* and b*. It is
// used to derive an estimate of the chi-squared parameter which is
// recommended as the predictor of the variability of dE
#define NUMPREDEFINEDSAMPLEID (sizeof(PredefinedSampleID)/sizeof(char *))
//Forward declaration of some internal functions
static void* AllocChunk(cmsIT8* it8, cmsUInt32Number size);
// Checks whatever c is a separator
static
cmsBool isseparator(int c)
{
return (c == ' ') || (c == '\t') ;
}
// Checks whatever c is a valid identifier char
static
cmsBool ismiddle(int c)
{
return (!isseparator(c) && (c != '#') && (c !='\"') && (c != '\'') && (c > 32) && (c < 127));
}
// Checks whatsever c is a valid identifier middle char.
static
cmsBool isidchar(int c)
{
return isalnum(c) || ismiddle(c);
}
// Checks whatsever c is a valid identifier first char.
static
cmsBool isfirstidchar(int c)
{
return !isdigit(c) && ismiddle(c);
}
// Guess whether the supplied path looks like an absolute path
static
cmsBool isabsolutepath(const char *path)
{
char ThreeChars[4];
if(path == NULL)
return FALSE;
if (path[0] == 0)
return FALSE;
strncpy(ThreeChars, path, 3);
ThreeChars[3] = 0;
if(ThreeChars[0] == DIR_CHAR)
return TRUE;
#ifdef CMS_IS_WINDOWS_
if (isalpha((int) ThreeChars[0]) && ThreeChars[1] == ':')
return TRUE;
#endif
return FALSE;
}
// Makes a file path based on a given reference path
// NOTE: this function doesn't check if the path exists or even if it's legal
static
cmsBool BuildAbsolutePath(const char *relPath, const char *basePath, char *buffer, cmsUInt32Number MaxLen)
{
char *tail;
cmsUInt32Number len;
// Already absolute?
if (isabsolutepath(relPath)) {
strncpy(buffer, relPath, MaxLen);
buffer[MaxLen-1] = 0;
return TRUE;
}
// No, search for last
strncpy(buffer, basePath, MaxLen);
buffer[MaxLen-1] = 0;
tail = strrchr(buffer, DIR_CHAR);
if (tail == NULL) return FALSE; // Is not absolute and has no separators??
len = (cmsUInt32Number) (tail - buffer);
if (len >= MaxLen) return FALSE;
// No need to assure zero terminator over here
strncpy(tail + 1, relPath, MaxLen - len);
return TRUE;
}
// Make sure no exploit is being even tried
static
const char* NoMeta(const char* str)
{
if (strchr(str, '%') != NULL)
return "**** CORRUPTED FORMAT STRING ***";
return str;
}
// Syntax error
static
cmsBool SynError(cmsIT8* it8, const char *Txt, ...)
{
char Buffer[256], ErrMsg[1024];
va_list args;
va_start(args, Txt);
vsnprintf(Buffer, 255, Txt, args);
Buffer[255] = 0;
va_end(args);
snprintf(ErrMsg, 1023, "%s: Line %d, %s", it8->FileStack[it8 ->IncludeSP]->FileName, it8->lineno, Buffer);
ErrMsg[1023] = 0;
it8->sy = SSYNERROR;
cmsSignalError(it8 ->ContextID, cmsERROR_CORRUPTION_DETECTED, "%s", ErrMsg);
return FALSE;
}
// Check if current symbol is same as specified. issue an error else.
static
cmsBool Check(cmsIT8* it8, SYMBOL sy, const char* Err)
{
if (it8 -> sy != sy)
return SynError(it8, NoMeta(Err));
return TRUE;
}
// Read Next character from stream
static
void NextCh(cmsIT8* it8)
{
if (it8 -> FileStack[it8 ->IncludeSP]->Stream) {
it8 ->ch = fgetc(it8 ->FileStack[it8 ->IncludeSP]->Stream);
if (feof(it8 -> FileStack[it8 ->IncludeSP]->Stream)) {
if (it8 ->IncludeSP > 0) {
fclose(it8 ->FileStack[it8->IncludeSP--]->Stream);
it8 -> ch = ' '; // Whitespace to be ignored
} else
it8 ->ch = 0; // EOF
}
}
else {
it8->ch = *it8->Source;
if (it8->ch) it8->Source++;
}
}
// Try to see if current identifier is a keyword, if so return the referred symbol
static
SYMBOL BinSrchKey(const char *id)
{
int l = 1;
int r = NUMKEYS;
int x, res;
while (r >= l)
{
x = (l+r)/2;
res = cmsstrcasecmp(id, TabKeys[x-1].id);
if (res == 0) return TabKeys[x-1].sy;
if (res < 0) r = x - 1;
else l = x + 1;
}
return SNONE;
}
// 10 ^n
static
cmsFloat64Number xpow10(int n)
{
return pow(10, (cmsFloat64Number) n);
}
// Reads a Real number, tries to follow from integer number
static
void ReadReal(cmsIT8* it8, int inum)
{
it8->dnum = (cmsFloat64Number) inum;
while (isdigit(it8->ch)) {
it8->dnum = it8->dnum * 10.0 + (it8->ch - '0');
NextCh(it8);
}
if (it8->ch == '.') { // Decimal point
cmsFloat64Number frac = 0.0; // fraction
int prec = 0; // precision
NextCh(it8); // Eats dec. point
while (isdigit(it8->ch)) {
frac = frac * 10.0 + (it8->ch - '0');
prec++;
NextCh(it8);
}
it8->dnum = it8->dnum + (frac / xpow10(prec));
}
// Exponent, example 34.00E+20
if (toupper(it8->ch) == 'E') {
int e;
int sgn;
NextCh(it8); sgn = 1;
if (it8->ch == '-') {
sgn = -1; NextCh(it8);
}
else
if (it8->ch == '+') {
sgn = +1;
NextCh(it8);
}
e = 0;
while (isdigit(it8->ch)) {
if ((cmsFloat64Number) e * 10L < INT_MAX)
e = e * 10 + (it8->ch - '0');
NextCh(it8);
}
e = sgn*e;
it8 -> dnum = it8 -> dnum * xpow10(e);
}
}
// Parses a float number
// This can not call directly atof because it uses locale dependant
// parsing, while CCMX files always use . as decimal separator
static
cmsFloat64Number ParseFloatNumber(const char *Buffer)
{
cmsFloat64Number dnum = 0.0;
int sign = 1;
// keep safe
if (Buffer == NULL) return 0.0;
if (*Buffer == '-' || *Buffer == '+') {
sign = (*Buffer == '-') ? -1 : 1;
Buffer++;
}
while (*Buffer && isdigit((int) *Buffer)) {
dnum = dnum * 10.0 + (*Buffer - '0');
if (*Buffer) Buffer++;
}
if (*Buffer == '.') {
cmsFloat64Number frac = 0.0; // fraction
int prec = 0; // precission
if (*Buffer) Buffer++;
while (*Buffer && isdigit((int) *Buffer)) {
frac = frac * 10.0 + (*Buffer - '0');
prec++;
if (*Buffer) Buffer++;
}
dnum = dnum + (frac / xpow10(prec));
}
// Exponent, example 34.00E+20
if (*Buffer && toupper(*Buffer) == 'E') {
int e;
int sgn;
if (*Buffer) Buffer++;
sgn = 1;
if (*Buffer == '-') {
sgn = -1;
if (*Buffer) Buffer++;
}
else
if (*Buffer == '+') {
sgn = +1;
if (*Buffer) Buffer++;
}
e = 0;
while (*Buffer && isdigit((int) *Buffer)) {
if ((cmsFloat64Number) e * 10L < INT_MAX)
e = e * 10 + (*Buffer - '0');
if (*Buffer) Buffer++;
}
e = sgn*e;
dnum = dnum * xpow10(e);
}
return sign * dnum;
}
// Reads next symbol
static
void InSymbol(cmsIT8* it8)
{
register char *idptr;
register int k;
SYMBOL key;
int sng;
do {
while (isseparator(it8->ch))
NextCh(it8);
if (isfirstidchar(it8->ch)) { // Identifier
k = 0;
idptr = it8->id;
do {
if (++k < MAXID) *idptr++ = (char) it8->ch;
NextCh(it8);
} while (isidchar(it8->ch));
*idptr = '\0';
key = BinSrchKey(it8->id);
if (key == SNONE) it8->sy = SIDENT;
else it8->sy = key;
}
else // Is a number?
if (isdigit(it8->ch) || it8->ch == '.' || it8->ch == '-' || it8->ch == '+')
{
int sign = 1;
if (it8->ch == '-') {
sign = -1;
NextCh(it8);
}
it8->inum = 0;
it8->sy = SINUM;
if (it8->ch == '0') { // 0xnnnn (Hexa) or 0bnnnn (Binary)
NextCh(it8);
if (toupper(it8->ch) == 'X') {
int j;
NextCh(it8);
while (isxdigit(it8->ch))
{
it8->ch = toupper(it8->ch);
if (it8->ch >= 'A' && it8->ch <= 'F') j = it8->ch -'A'+10;
else j = it8->ch - '0';
if ((long) it8->inum * 16L > (long) INT_MAX)
{
SynError(it8, "Invalid hexadecimal number");
return;
}
it8->inum = it8->inum * 16 + j;
NextCh(it8);
}
return;
}
if (toupper(it8->ch) == 'B') { // Binary
int j;
NextCh(it8);
while (it8->ch == '0' || it8->ch == '1')
{
j = it8->ch - '0';
if ((long) it8->inum * 2L > (long) INT_MAX)
{
SynError(it8, "Invalid binary number");
return;
}
it8->inum = it8->inum * 2 + j;
NextCh(it8);
}
return;
}
}
while (isdigit(it8->ch)) {
if ((long) it8->inum * 10L > (long) INT_MAX) {
ReadReal(it8, it8->inum);
it8->sy = SDNUM;
it8->dnum *= sign;
return;
}
it8->inum = it8->inum * 10 + (it8->ch - '0');
NextCh(it8);
}
if (it8->ch == '.') {
ReadReal(it8, it8->inum);
it8->sy = SDNUM;
it8->dnum *= sign;
return;
}
it8 -> inum *= sign;
// Special case. Numbers followed by letters are taken as identifiers
if (isidchar(it8 ->ch)) {
if (it8 ->sy == SINUM) {
sprintf(it8->id, "%d", it8->inum);
}
else {
sprintf(it8->id, it8 ->DoubleFormatter, it8->dnum);
}
k = (int) strlen(it8 ->id);
idptr = it8 ->id + k;
do {
if (++k < MAXID) *idptr++ = (char) it8->ch;
NextCh(it8);
} while (isidchar(it8->ch));
*idptr = '\0';
it8->sy = SIDENT;
}
return;
}
else
switch ((int) it8->ch) {
// EOF marker -- ignore it
case '\x1a':
NextCh(it8);
break;
// Eof stream markers
case 0:
case -1:
it8->sy = SEOF;
break;
// Next line
case '\r':
NextCh(it8);
if (it8 ->ch == '\n')
NextCh(it8);
it8->sy = SEOLN;
it8->lineno++;
break;
case '\n':
NextCh(it8);
it8->sy = SEOLN;
it8->lineno++;
break;
// Comment
case '#':
NextCh(it8);
while (it8->ch && it8->ch != '\n' && it8->ch != '\r')
NextCh(it8);
it8->sy = SCOMMENT;
break;
// String.
case '\'':
case '\"':
idptr = it8->str;
sng = it8->ch;
k = 0;
NextCh(it8);
while (k < MAXSTR && it8->ch != sng) {
if (it8->ch == '\n'|| it8->ch == '\r') k = MAXSTR+1;
else {
*idptr++ = (char) it8->ch;
NextCh(it8);
k++;
}
}
it8->sy = SSTRING;
*idptr = '\0';
NextCh(it8);
break;
default:
SynError(it8, "Unrecognized character: 0x%x", it8 ->ch);
return;
}
} while (it8->sy == SCOMMENT);
// Handle the include special token
if (it8 -> sy == SINCLUDE) {
FILECTX* FileNest;
if(it8 -> IncludeSP >= (MAXINCLUDE-1)) {
SynError(it8, "Too many recursion levels");
return;
}
InSymbol(it8);
if (!Check(it8, SSTRING, "Filename expected")) return;
FileNest = it8 -> FileStack[it8 -> IncludeSP + 1];
if(FileNest == NULL) {
FileNest = it8 ->FileStack[it8 -> IncludeSP + 1] = (FILECTX*)AllocChunk(it8, sizeof(FILECTX));
//if(FileNest == NULL)
// TODO: how to manage out-of-memory conditions?
}
if (BuildAbsolutePath(it8->str,
it8->FileStack[it8->IncludeSP]->FileName,
FileNest->FileName, cmsMAX_PATH-1) == FALSE) {
SynError(it8, "File path too long");
return;
}
FileNest->Stream = fopen(FileNest->FileName, "rt");
if (FileNest->Stream == NULL) {
SynError(it8, "File %s not found", FileNest->FileName);
return;
}
it8->IncludeSP++;
it8 ->ch = ' ';
InSymbol(it8);
}
}
// Checks end of line separator
static
cmsBool CheckEOLN(cmsIT8* it8)
{
if (!Check(it8, SEOLN, "Expected separator")) return FALSE;
while (it8 -> sy == SEOLN)
InSymbol(it8);
return TRUE;
}
// Skip a symbol
static
void Skip(cmsIT8* it8, SYMBOL sy)
{
if (it8->sy == sy && it8->sy != SEOF)
InSymbol(it8);
}
// Skip multiple EOLN
static
void SkipEOLN(cmsIT8* it8)
{
while (it8->sy == SEOLN) {
InSymbol(it8);
}
}
// Returns a string holding current value
static
cmsBool GetVal(cmsIT8* it8, char* Buffer, cmsUInt32Number max, const char* ErrorTitle)
{
switch (it8->sy) {
case SEOLN: // Empty value
Buffer[0]=0;
break;
case SIDENT: strncpy(Buffer, it8->id, max);
Buffer[max-1]=0;
break;
case SINUM: snprintf(Buffer, max, "%d", it8 -> inum); break;
case SDNUM: snprintf(Buffer, max, it8->DoubleFormatter, it8 -> dnum); break;
case SSTRING: strncpy(Buffer, it8->str, max);
Buffer[max-1] = 0;
break;
default:
return SynError(it8, "%s", ErrorTitle);
}
Buffer[max] = 0;
return TRUE;
}
// ---------------------------------------------------------- Table
static
TABLE* GetTable(cmsIT8* it8)
{
if ((it8 -> nTable >= it8 ->TablesCount)) {
SynError(it8, "Table %d out of sequence", it8 -> nTable);
return it8 -> Tab;
}
return it8 ->Tab + it8 ->nTable;
}
// ---------------------------------------------------------- Memory management
// Frees an allocator and owned memory
void CMSEXPORT cmsIT8Free(cmsHANDLE hIT8)
{
cmsIT8* it8 = (cmsIT8*) hIT8;
if (it8 == NULL)
return;
if (it8->MemorySink) {
OWNEDMEM* p;
OWNEDMEM* n;
for (p = it8->MemorySink; p != NULL; p = n) {
n = p->Next;
if (p->Ptr) _cmsFree(it8 ->ContextID, p->Ptr);
_cmsFree(it8 ->ContextID, p);
}
}
if (it8->MemoryBlock)
_cmsFree(it8 ->ContextID, it8->MemoryBlock);
_cmsFree(it8 ->ContextID, it8);
}
// Allocates a chunk of data, keep linked list
static
void* AllocBigBlock(cmsIT8* it8, cmsUInt32Number size)
{
OWNEDMEM* ptr1;
void* ptr = _cmsMallocZero(it8->ContextID, size);
if (ptr != NULL) {
ptr1 = (OWNEDMEM*) _cmsMallocZero(it8 ->ContextID, sizeof(OWNEDMEM));
if (ptr1 == NULL) {
_cmsFree(it8 ->ContextID, ptr);
return NULL;
}
ptr1-> Ptr = ptr;
ptr1-> Next = it8 -> MemorySink;
it8 -> MemorySink = ptr1;
}
return ptr;
}
// Suballocator.
static
void* AllocChunk(cmsIT8* it8, cmsUInt32Number size)
{
cmsUInt32Number Free = it8 ->Allocator.BlockSize - it8 ->Allocator.Used;
cmsUInt8Number* ptr;
size = _cmsALIGNMEM(size);
if (size > Free) {
if (it8 -> Allocator.BlockSize == 0)
it8 -> Allocator.BlockSize = 20*1024;
else
it8 ->Allocator.BlockSize *= 2;
if (it8 ->Allocator.BlockSize < size)
it8 ->Allocator.BlockSize = size;
it8 ->Allocator.Used = 0;
it8 ->Allocator.Block = (cmsUInt8Number*) AllocBigBlock(it8, it8 ->Allocator.BlockSize);
}
ptr = it8 ->Allocator.Block + it8 ->Allocator.Used;
it8 ->Allocator.Used += size;
return (void*) ptr;
}
// Allocates a string
static
char *AllocString(cmsIT8* it8, const char* str)
{
cmsUInt32Number Size = (cmsUInt32Number) strlen(str)+1;
char *ptr;
ptr = (char *) AllocChunk(it8, Size);
if (ptr) strncpy (ptr, str, Size-1);
return ptr;
}
// Searches through linked list
static
cmsBool IsAvailableOnList(KEYVALUE* p, const char* Key, const char* Subkey, KEYVALUE** LastPtr)
{
if (LastPtr) *LastPtr = p;
for (; p != NULL; p = p->Next) {
if (LastPtr) *LastPtr = p;
if (*Key != '#') { // Comments are ignored
if (cmsstrcasecmp(Key, p->Keyword) == 0)
break;
}
}
if (p == NULL)
return FALSE;
if (Subkey == 0)
return TRUE;
for (; p != NULL; p = p->NextSubkey) {
if (p ->Subkey == NULL) continue;
if (LastPtr) *LastPtr = p;
if (cmsstrcasecmp(Subkey, p->Subkey) == 0)
return TRUE;
}
return FALSE;
}
// Add a property into a linked list
static
KEYVALUE* AddToList(cmsIT8* it8, KEYVALUE** Head, const char *Key, const char *Subkey, const char* xValue, WRITEMODE WriteAs)
{
KEYVALUE* p;
KEYVALUE* last;
// Check if property is already in list
if (IsAvailableOnList(*Head, Key, Subkey, &p)) {
// This may work for editing properties
// return SynError(it8, "duplicate key <%s>", Key);
}
else {
last = p;
// Allocate the container
p = (KEYVALUE*) AllocChunk(it8, sizeof(KEYVALUE));
if (p == NULL)
{
SynError(it8, "AddToList: out of memory");
return NULL;
}
// Store name and value
p->Keyword = AllocString(it8, Key);
p->Subkey = (Subkey == NULL) ? NULL : AllocString(it8, Subkey);
// Keep the container in our list
if (*Head == NULL) {
*Head = p;
}
else
{
if (Subkey != NULL && last != NULL) {
last->NextSubkey = p;
// If Subkey is not null, then last is the last property with the same key,
// but not necessarily is the last property in the list, so we need to move
// to the actual list end
while (last->Next != NULL)
last = last->Next;
}
if (last != NULL) last->Next = p;
}
p->Next = NULL;
p->NextSubkey = NULL;
}
p->WriteAs = WriteAs;
if (xValue != NULL) {
p->Value = AllocString(it8, xValue);
}
else {
p->Value = NULL;
}
return p;
}
static
KEYVALUE* AddAvailableProperty(cmsIT8* it8, const char* Key, WRITEMODE as)
{
return AddToList(it8, &it8->ValidKeywords, Key, NULL, NULL, as);
}
static
KEYVALUE* AddAvailableSampleID(cmsIT8* it8, const char* Key)
{
return AddToList(it8, &it8->ValidSampleID, Key, NULL, NULL, WRITE_UNCOOKED);
}
static
void AllocTable(cmsIT8* it8)
{
TABLE* t;
t = it8 ->Tab + it8 ->TablesCount;
t->HeaderList = NULL;
t->DataFormat = NULL;
t->Data = NULL;
it8 ->TablesCount++;
}
cmsInt32Number CMSEXPORT cmsIT8SetTable(cmsHANDLE IT8, cmsUInt32Number nTable)
{
cmsIT8* it8 = (cmsIT8*) IT8;
if (nTable >= it8 ->TablesCount) {
if (nTable == it8 ->TablesCount) {
AllocTable(it8);
}
else {
SynError(it8, "Table %d is out of sequence", nTable);
return -1;
}
}
it8 ->nTable = nTable;
return (cmsInt32Number) nTable;
}
// Init an empty container
cmsHANDLE CMSEXPORT cmsIT8Alloc(cmsContext ContextID)
{
cmsIT8* it8;
cmsUInt32Number i;
it8 = (cmsIT8*) _cmsMallocZero(ContextID, sizeof(cmsIT8));
if (it8 == NULL) return NULL;
AllocTable(it8);
it8->MemoryBlock = NULL;
it8->MemorySink = NULL;
it8 ->nTable = 0;
it8->ContextID = ContextID;
it8->Allocator.Used = 0;
it8->Allocator.Block = NULL;
it8->Allocator.BlockSize = 0;
it8->ValidKeywords = NULL;
it8->ValidSampleID = NULL;
it8 -> sy = SNONE;
it8 -> ch = ' ';
it8 -> Source = NULL;
it8 -> inum = 0;
it8 -> dnum = 0.0;
it8->FileStack[0] = (FILECTX*)AllocChunk(it8, sizeof(FILECTX));
it8->IncludeSP = 0;
it8 -> lineno = 1;
strcpy(it8->DoubleFormatter, DEFAULT_DBL_FORMAT);
cmsIT8SetSheetType((cmsHANDLE) it8, "CGATS.17");
// Initialize predefined properties & data
for (i=0; i < NUMPREDEFINEDPROPS; i++)
AddAvailableProperty(it8, PredefinedProperties[i].id, PredefinedProperties[i].as);
for (i=0; i < NUMPREDEFINEDSAMPLEID; i++)
AddAvailableSampleID(it8, PredefinedSampleID[i]);
return (cmsHANDLE) it8;
}
const char* CMSEXPORT cmsIT8GetSheetType(cmsHANDLE hIT8)
{
return GetTable((cmsIT8*) hIT8)->SheetType;
}
cmsBool CMSEXPORT cmsIT8SetSheetType(cmsHANDLE hIT8, const char* Type)
{
TABLE* t = GetTable((cmsIT8*) hIT8);
strncpy(t ->SheetType, Type, MAXSTR-1);
t ->SheetType[MAXSTR-1] = 0;
return TRUE;
}
cmsBool CMSEXPORT cmsIT8SetComment(cmsHANDLE hIT8, const char* Val)
{
cmsIT8* it8 = (cmsIT8*) hIT8;
if (!Val) return FALSE;
if (!*Val) return FALSE;
return AddToList(it8, &GetTable(it8)->HeaderList, "# ", NULL, Val, WRITE_UNCOOKED) != NULL;
}
// Sets a property
cmsBool CMSEXPORT cmsIT8SetPropertyStr(cmsHANDLE hIT8, const char* Key, const char *Val)
{
cmsIT8* it8 = (cmsIT8*) hIT8;
if (!Val) return FALSE;
if (!*Val) return FALSE;
return AddToList(it8, &GetTable(it8)->HeaderList, Key, NULL, Val, WRITE_STRINGIFY) != NULL;
}
cmsBool CMSEXPORT cmsIT8SetPropertyDbl(cmsHANDLE hIT8, const char* cProp, cmsFloat64Number Val)
{
cmsIT8* it8 = (cmsIT8*) hIT8;
char Buffer[1024];
sprintf(Buffer, it8->DoubleFormatter, Val);
return AddToList(it8, &GetTable(it8)->HeaderList, cProp, NULL, Buffer, WRITE_UNCOOKED) != NULL;
}
cmsBool CMSEXPORT cmsIT8SetPropertyHex(cmsHANDLE hIT8, const char* cProp, cmsUInt32Number Val)
{
cmsIT8* it8 = (cmsIT8*) hIT8;
char Buffer[1024];
sprintf(Buffer, "%u", Val);
return AddToList(it8, &GetTable(it8)->HeaderList, cProp, NULL, Buffer, WRITE_HEXADECIMAL) != NULL;
}
cmsBool CMSEXPORT cmsIT8SetPropertyUncooked(cmsHANDLE hIT8, const char* Key, const char* Buffer)
{
cmsIT8* it8 = (cmsIT8*) hIT8;
return AddToList(it8, &GetTable(it8)->HeaderList, Key, NULL, Buffer, WRITE_UNCOOKED) != NULL;
}
cmsBool CMSEXPORT cmsIT8SetPropertyMulti(cmsHANDLE hIT8, const char* Key, const char* SubKey, const char *Buffer)
{
cmsIT8* it8 = (cmsIT8*) hIT8;
return AddToList(it8, &GetTable(it8)->HeaderList, Key, SubKey, Buffer, WRITE_PAIR) != NULL;
}
// Gets a property
const char* CMSEXPORT cmsIT8GetProperty(cmsHANDLE hIT8, const char* Key)
{
cmsIT8* it8 = (cmsIT8*) hIT8;
KEYVALUE* p;
if (IsAvailableOnList(GetTable(it8) -> HeaderList, Key, NULL, &p))
{
return p -> Value;
}
return NULL;
}
cmsFloat64Number CMSEXPORT cmsIT8GetPropertyDbl(cmsHANDLE hIT8, const char* cProp)
{
const char *v = cmsIT8GetProperty(hIT8, cProp);
if (v == NULL) return 0.0;
return ParseFloatNumber(v);
}
const char* CMSEXPORT cmsIT8GetPropertyMulti(cmsHANDLE hIT8, const char* Key, const char *SubKey)
{
cmsIT8* it8 = (cmsIT8*) hIT8;
KEYVALUE* p;
if (IsAvailableOnList(GetTable(it8) -> HeaderList, Key, SubKey, &p)) {
return p -> Value;
}
return NULL;
}
// ----------------------------------------------------------------- Datasets
static
void AllocateDataFormat(cmsIT8* it8)
{
TABLE* t = GetTable(it8);
if (t -> DataFormat) return; // Already allocated
t -> nSamples = (int) cmsIT8GetPropertyDbl(it8, "NUMBER_OF_FIELDS");
if (t -> nSamples <= 0) {
SynError(it8, "AllocateDataFormat: Unknown NUMBER_OF_FIELDS");
t -> nSamples = 10;
}
t -> DataFormat = (char**) AllocChunk (it8, ((cmsUInt32Number) t->nSamples + 1) * sizeof(char *));
if (t->DataFormat == NULL) {
SynError(it8, "AllocateDataFormat: Unable to allocate dataFormat array");
}
}
static
const char *GetDataFormat(cmsIT8* it8, int n)
{
TABLE* t = GetTable(it8);
if (t->DataFormat)
return t->DataFormat[n];
return NULL;
}
static
cmsBool SetDataFormat(cmsIT8* it8, int n, const char *label)
{
TABLE* t = GetTable(it8);
if (!t->DataFormat)
AllocateDataFormat(it8);
if (n > t -> nSamples) {
SynError(it8, "More than NUMBER_OF_FIELDS fields.");
return FALSE;
}
if (t->DataFormat) {
t->DataFormat[n] = AllocString(it8, label);
}
return TRUE;
}
cmsBool CMSEXPORT cmsIT8SetDataFormat(cmsHANDLE h, int n, const char *Sample)
{
cmsIT8* it8 = (cmsIT8*) h;
return SetDataFormat(it8, n, Sample);
}
static
void AllocateDataSet(cmsIT8* it8)
{
TABLE* t = GetTable(it8);
if (t -> Data) return; // Already allocated
t-> nSamples = atoi(cmsIT8GetProperty(it8, "NUMBER_OF_FIELDS"));
t-> nPatches = atoi(cmsIT8GetProperty(it8, "NUMBER_OF_SETS"));
t-> Data = (char**)AllocChunk (it8, ((cmsUInt32Number) t->nSamples + 1) * ((cmsUInt32Number) t->nPatches + 1) *sizeof (char*));
if (t->Data == NULL) {
SynError(it8, "AllocateDataSet: Unable to allocate data array");
}
}
static
char* GetData(cmsIT8* it8, int nSet, int nField)
{
TABLE* t = GetTable(it8);
int nSamples = t -> nSamples;
int nPatches = t -> nPatches;
if (nSet >= nPatches || nField >= nSamples)
return NULL;
if (!t->Data) return NULL;
return t->Data [nSet * nSamples + nField];
}
static
cmsBool SetData(cmsIT8* it8, int nSet, int nField, const char *Val)
{
TABLE* t = GetTable(it8);
if (!t->Data)
AllocateDataSet(it8);
if (!t->Data) return FALSE;
if (nSet > t -> nPatches || nSet < 0) {
return SynError(it8, "Patch %d out of range, there are %d patches", nSet, t -> nPatches);
}
if (nField > t ->nSamples || nField < 0) {
return SynError(it8, "Sample %d out of range, there are %d samples", nField, t ->nSamples);
}
t->Data [nSet * t -> nSamples + nField] = AllocString(it8, Val);
return TRUE;
}
// --------------------------------------------------------------- File I/O
// Writes a string to file
static
void WriteStr(SAVESTREAM* f, const char *str)
{
cmsUInt32Number len;
if (str == NULL)
str = " ";
// Length to write
len = (cmsUInt32Number) strlen(str);
f ->Used += len;
if (f ->stream) { // Should I write it to a file?
if (fwrite(str, 1, len, f->stream) != len) {
cmsSignalError(0, cmsERROR_WRITE, "Write to file error in CGATS parser");
return;
}
}
else { // Or to a memory block?
if (f ->Base) { // Am I just counting the bytes?
if (f ->Used > f ->Max) {
cmsSignalError(0, cmsERROR_WRITE, "Write to memory overflows in CGATS parser");
return;
}
memmove(f ->Ptr, str, len);
f->Ptr += len;
}
}
}
// Write formatted
static
void Writef(SAVESTREAM* f, const char* frm, ...)
{
char Buffer[4096];
va_list args;
va_start(args, frm);
vsnprintf(Buffer, 4095, frm, args);
Buffer[4095] = 0;
WriteStr(f, Buffer);
va_end(args);
}
// Writes full header
static
void WriteHeader(cmsIT8* it8, SAVESTREAM* fp)
{
KEYVALUE* p;
TABLE* t = GetTable(it8);
// Writes the type
WriteStr(fp, t->SheetType);
WriteStr(fp, "\n");
for (p = t->HeaderList; (p != NULL); p = p->Next)
{
if (*p ->Keyword == '#') {
char* Pt;
WriteStr(fp, "#\n# ");
for (Pt = p ->Value; *Pt; Pt++) {
Writef(fp, "%c", *Pt);
if (*Pt == '\n') {
WriteStr(fp, "# ");
}
}
WriteStr(fp, "\n#\n");
continue;
}
if (!IsAvailableOnList(it8-> ValidKeywords, p->Keyword, NULL, NULL)) {
#ifdef CMS_STRICT_CGATS
WriteStr(fp, "KEYWORD\t\"");
WriteStr(fp, p->Keyword);
WriteStr(fp, "\"\n");
#endif
AddAvailableProperty(it8, p->Keyword, WRITE_UNCOOKED);
}
WriteStr(fp, p->Keyword);
if (p->Value) {
switch (p ->WriteAs) {
case WRITE_UNCOOKED:
Writef(fp, "\t%s", p ->Value);
break;
case WRITE_STRINGIFY:
Writef(fp, "\t\"%s\"", p->Value );
break;
case WRITE_HEXADECIMAL:
Writef(fp, "\t0x%X", atoi(p ->Value));
break;
case WRITE_BINARY:
Writef(fp, "\t0x%B", atoi(p ->Value));
break;
case WRITE_PAIR:
Writef(fp, "\t\"%s,%s\"", p->Subkey, p->Value);
break;
default: SynError(it8, "Unknown write mode %d", p ->WriteAs);
return;
}
}
WriteStr (fp, "\n");
}
}
// Writes the data format
static
void WriteDataFormat(SAVESTREAM* fp, cmsIT8* it8)
{
int i, nSamples;
TABLE* t = GetTable(it8);
if (!t -> DataFormat) return;
WriteStr(fp, "BEGIN_DATA_FORMAT\n");
WriteStr(fp, " ");
nSamples = atoi(cmsIT8GetProperty(it8, "NUMBER_OF_FIELDS"));
for (i = 0; i < nSamples; i++) {
WriteStr(fp, t->DataFormat[i]);
WriteStr(fp, ((i == (nSamples-1)) ? "\n" : "\t"));
}
WriteStr (fp, "END_DATA_FORMAT\n");
}
// Writes data array
static
void WriteData(SAVESTREAM* fp, cmsIT8* it8)
{
int i, j;
TABLE* t = GetTable(it8);
if (!t->Data) return;
WriteStr (fp, "BEGIN_DATA\n");
t->nPatches = atoi(cmsIT8GetProperty(it8, "NUMBER_OF_SETS"));
for (i = 0; i < t-> nPatches; i++) {
WriteStr(fp, " ");
for (j = 0; j < t->nSamples; j++) {
char *ptr = t->Data[i*t->nSamples+j];
if (ptr == NULL) WriteStr(fp, "\"\"");
else {
// If value contains whitespace, enclose within quote
if (strchr(ptr, ' ') != NULL) {
WriteStr(fp, "\"");
WriteStr(fp, ptr);
WriteStr(fp, "\"");
}
else
WriteStr(fp, ptr);
}
WriteStr(fp, ((j == (t->nSamples-1)) ? "\n" : "\t"));
}
}
WriteStr (fp, "END_DATA\n");
}
// Saves whole file
cmsBool CMSEXPORT cmsIT8SaveToFile(cmsHANDLE hIT8, const char* cFileName)
{
SAVESTREAM sd;
cmsUInt32Number i;
cmsIT8* it8 = (cmsIT8*) hIT8;
memset(&sd, 0, sizeof(sd));
sd.stream = fopen(cFileName, "wt");
if (!sd.stream) return FALSE;
for (i=0; i < it8 ->TablesCount; i++) {
cmsIT8SetTable(hIT8, i);
WriteHeader(it8, &sd);
WriteDataFormat(&sd, it8);
WriteData(&sd, it8);
}
if (fclose(sd.stream) != 0) return FALSE;
return TRUE;
}
// Saves to memory
cmsBool CMSEXPORT cmsIT8SaveToMem(cmsHANDLE hIT8, void *MemPtr, cmsUInt32Number* BytesNeeded)
{
SAVESTREAM sd;
cmsUInt32Number i;
cmsIT8* it8 = (cmsIT8*) hIT8;
memset(&sd, 0, sizeof(sd));
sd.stream = NULL;
sd.Base = (cmsUInt8Number*) MemPtr;
sd.Ptr = sd.Base;
sd.Used = 0;
if (sd.Base)
sd.Max = *BytesNeeded; // Write to memory?
else
sd.Max = 0; // Just counting the needed bytes
for (i=0; i < it8 ->TablesCount; i++) {
cmsIT8SetTable(hIT8, i);
WriteHeader(it8, &sd);
WriteDataFormat(&sd, it8);
WriteData(&sd, it8);
}
sd.Used++; // The \0 at the very end
if (sd.Base)
*sd.Ptr = 0;
*BytesNeeded = sd.Used;
return TRUE;
}
// -------------------------------------------------------------- Higer level parsing
static
cmsBool DataFormatSection(cmsIT8* it8)
{
int iField = 0;
TABLE* t = GetTable(it8);
InSymbol(it8); // Eats "BEGIN_DATA_FORMAT"
CheckEOLN(it8);
while (it8->sy != SEND_DATA_FORMAT &&
it8->sy != SEOLN &&
it8->sy != SEOF &&
it8->sy != SSYNERROR) {
if (it8->sy != SIDENT) {
return SynError(it8, "Sample type expected");
}
if (!SetDataFormat(it8, iField, it8->id)) return FALSE;
iField++;
InSymbol(it8);
SkipEOLN(it8);
}
SkipEOLN(it8);
Skip(it8, SEND_DATA_FORMAT);
SkipEOLN(it8);
if (iField != t ->nSamples) {
SynError(it8, "Count mismatch. NUMBER_OF_FIELDS was %d, found %d\n", t ->nSamples, iField);
}
return TRUE;
}
static
cmsBool DataSection (cmsIT8* it8)
{
int iField = 0;
int iSet = 0;
char Buffer[256];
TABLE* t = GetTable(it8);
InSymbol(it8); // Eats "BEGIN_DATA"
CheckEOLN(it8);
if (!t->Data)
AllocateDataSet(it8);
while (it8->sy != SEND_DATA && it8->sy != SEOF)
{
if (iField >= t -> nSamples) {
iField = 0;
iSet++;
}
if (it8->sy != SEND_DATA && it8->sy != SEOF) {
if (!GetVal(it8, Buffer, 255, "Sample data expected"))
return FALSE;
if (!SetData(it8, iSet, iField, Buffer))
return FALSE;
iField++;
InSymbol(it8);
SkipEOLN(it8);
}
}
SkipEOLN(it8);
Skip(it8, SEND_DATA);
SkipEOLN(it8);
// Check for data completion.
if ((iSet+1) != t -> nPatches)
return SynError(it8, "Count mismatch. NUMBER_OF_SETS was %d, found %d\n", t ->nPatches, iSet+1);
return TRUE;
}
static
cmsBool HeaderSection(cmsIT8* it8)
{
char VarName[MAXID];
char Buffer[MAXSTR];
KEYVALUE* Key;
while (it8->sy != SEOF &&
it8->sy != SSYNERROR &&
it8->sy != SBEGIN_DATA_FORMAT &&
it8->sy != SBEGIN_DATA) {
switch (it8 -> sy) {
case SKEYWORD:
InSymbol(it8);
if (!GetVal(it8, Buffer, MAXSTR-1, "Keyword expected")) return FALSE;
if (!AddAvailableProperty(it8, Buffer, WRITE_UNCOOKED)) return FALSE;
InSymbol(it8);
break;
case SDATA_FORMAT_ID:
InSymbol(it8);
if (!GetVal(it8, Buffer, MAXSTR-1, "Keyword expected")) return FALSE;
if (!AddAvailableSampleID(it8, Buffer)) return FALSE;
InSymbol(it8);
break;
case SIDENT:
strncpy(VarName, it8->id, MAXID-1);
VarName[MAXID-1] = 0;
if (!IsAvailableOnList(it8-> ValidKeywords, VarName, NULL, &Key)) {
#ifdef CMS_STRICT_CGATS
return SynError(it8, "Undefined keyword '%s'", VarName);
#else
Key = AddAvailableProperty(it8, VarName, WRITE_UNCOOKED);
if (Key == NULL) return FALSE;
#endif
}
InSymbol(it8);
if (!GetVal(it8, Buffer, MAXSTR-1, "Property data expected")) return FALSE;
if(Key->WriteAs != WRITE_PAIR) {
AddToList(it8, &GetTable(it8)->HeaderList, VarName, NULL, Buffer,
(it8->sy == SSTRING) ? WRITE_STRINGIFY : WRITE_UNCOOKED);
}
else {
const char *Subkey;
char *Nextkey;
if (it8->sy != SSTRING)
return SynError(it8, "Invalid value '%s' for property '%s'.", Buffer, VarName);
// chop the string as a list of "subkey, value" pairs, using ';' as a separator
for (Subkey = Buffer; Subkey != NULL; Subkey = Nextkey)
{
char *Value, *temp;
// identify token pair boundary
Nextkey = (char*) strchr(Subkey, ';');
if(Nextkey)
*Nextkey++ = '\0';
// for each pair, split the subkey and the value
Value = (char*) strrchr(Subkey, ',');
if(Value == NULL)
return SynError(it8, "Invalid value for property '%s'.", VarName);
// gobble the spaces before the coma, and the coma itself
temp = Value++;
do *temp-- = '\0'; while(temp >= Subkey && *temp == ' ');
// gobble any space at the right
temp = Value + strlen(Value) - 1;
while(*temp == ' ') *temp-- = '\0';
// trim the strings from the left
Subkey += strspn(Subkey, " ");
Value += strspn(Value, " ");
if(Subkey[0] == 0 || Value[0] == 0)
return SynError(it8, "Invalid value for property '%s'.", VarName);
AddToList(it8, &GetTable(it8)->HeaderList, VarName, Subkey, Value, WRITE_PAIR);
}
}
InSymbol(it8);
break;
case SEOLN: break;
default:
return SynError(it8, "expected keyword or identifier");
}
SkipEOLN(it8);
}
return TRUE;
}
static
void ReadType(cmsIT8* it8, char* SheetTypePtr)
{
// First line is a very special case.
while (isseparator(it8->ch))
NextCh(it8);
while (it8->ch != '\r' && it8 ->ch != '\n' && it8->ch != '\t' && it8 -> ch != -1) {
*SheetTypePtr++= (char) it8 ->ch;
NextCh(it8);
}
*SheetTypePtr = 0;
}
static
cmsBool ParseIT8(cmsIT8* it8, cmsBool nosheet)
{
char* SheetTypePtr = it8 ->Tab[0].SheetType;
if (nosheet == 0) {
ReadType(it8, SheetTypePtr);
}
InSymbol(it8);
SkipEOLN(it8);
while (it8-> sy != SEOF &&
it8-> sy != SSYNERROR) {
switch (it8 -> sy) {
case SBEGIN_DATA_FORMAT:
if (!DataFormatSection(it8)) return FALSE;
break;
case SBEGIN_DATA:
if (!DataSection(it8)) return FALSE;
if (it8 -> sy != SEOF) {
AllocTable(it8);
it8 ->nTable = it8 ->TablesCount - 1;
// Read sheet type if present. We only support identifier and string.
// <ident> <eoln> is a type string
// anything else, is not a type string
if (nosheet == 0) {
if (it8 ->sy == SIDENT) {
// May be a type sheet or may be a prop value statement. We cannot use insymbol in
// this special case...
while (isseparator(it8->ch))
NextCh(it8);
// If a newline is found, then this is a type string
if (it8 ->ch == '\n' || it8->ch == '\r') {
cmsIT8SetSheetType(it8, it8 ->id);
InSymbol(it8);
}
else
{
// It is not. Just continue
cmsIT8SetSheetType(it8, "");
}
}
else
// Validate quoted strings
if (it8 ->sy == SSTRING) {
cmsIT8SetSheetType(it8, it8 ->str);
InSymbol(it8);
}
}
}
break;
case SEOLN:
SkipEOLN(it8);
break;
default:
if (!HeaderSection(it8)) return FALSE;
}
}
return (it8 -> sy != SSYNERROR);
}
// Init usefull pointers
static
void CookPointers(cmsIT8* it8)
{
int idField, i;
char* Fld;
cmsUInt32Number j;
cmsUInt32Number nOldTable = it8 ->nTable;
for (j=0; j < it8 ->TablesCount; j++) {
TABLE* t = it8 ->Tab + j;
t -> SampleID = 0;
it8 ->nTable = j;
for (idField = 0; idField < t -> nSamples; idField++)
{
if (t ->DataFormat == NULL){
SynError(it8, "Undefined DATA_FORMAT");
return;
}
Fld = t->DataFormat[idField];
if (!Fld) continue;
if (cmsstrcasecmp(Fld, "SAMPLE_ID") == 0) {
t -> SampleID = idField;
for (i=0; i < t -> nPatches; i++) {
char *Data = GetData(it8, i, idField);
if (Data) {
char Buffer[256];
strncpy(Buffer, Data, 255);
Buffer[255] = 0;
if (strlen(Buffer) <= strlen(Data))
strcpy(Data, Buffer);
else
SetData(it8, i, idField, Buffer);
}
}
}
// "LABEL" is an extension. It keeps references to forward tables
if ((cmsstrcasecmp(Fld, "LABEL") == 0) || Fld[0] == '$' ) {
// Search for table references...
for (i=0; i < t -> nPatches; i++) {
char *Label = GetData(it8, i, idField);
if (Label) {
cmsUInt32Number k;
// This is the label, search for a table containing
// this property
for (k=0; k < it8 ->TablesCount; k++) {
TABLE* Table = it8 ->Tab + k;
KEYVALUE* p;
if (IsAvailableOnList(Table->HeaderList, Label, NULL, &p)) {
// Available, keep type and table
char Buffer[256];
char *Type = p ->Value;
int nTable = (int) k;
snprintf(Buffer, 255, "%s %d %s", Label, nTable, Type );
SetData(it8, i, idField, Buffer);
}
}
}
}
}
}
}
it8 ->nTable = nOldTable;
}
// Try to infere if the file is a CGATS/IT8 file at all. Read first line
// that should be something like some printable characters plus a \n
// returns 0 if this is not like a CGATS, or an integer otherwise. This integer is the number of words in first line?
static
int IsMyBlock(cmsUInt8Number* Buffer, int n)
{
int words = 1, space = 0, quot = 0;
int i;
if (n < 10) return 0; // Too small
if (n > 132)
n = 132;
for (i = 1; i < n; i++) {
switch(Buffer[i])
{
case '\n':
case '\r':
return ((quot == 1) || (words > 2)) ? 0 : words;
case '\t':
case ' ':
if(!quot && !space)
space = 1;
break;
case '\"':
quot = !quot;
break;
default:
if (Buffer[i] < 32) return 0;
if (Buffer[i] > 127) return 0;
words += space;
space = 0;
break;
}
}
return 0;
}
static
cmsBool IsMyFile(const char* FileName)
{
FILE *fp;
cmsUInt32Number Size;
cmsUInt8Number Ptr[133];
fp = fopen(FileName, "rt");
if (!fp) {
cmsSignalError(0, cmsERROR_FILE, "File '%s' not found", FileName);
return FALSE;
}
Size = (cmsUInt32Number) fread(Ptr, 1, 132, fp);
if (fclose(fp) != 0)
return FALSE;
Ptr[Size] = '\0';
return IsMyBlock(Ptr, Size);
}
// ---------------------------------------------------------- Exported routines
cmsHANDLE CMSEXPORT cmsIT8LoadFromMem(cmsContext ContextID, void *Ptr, cmsUInt32Number len)
{
cmsHANDLE hIT8;
cmsIT8* it8;
int type;
_cmsAssert(Ptr != NULL);
_cmsAssert(len != 0);
type = IsMyBlock((cmsUInt8Number*)Ptr, len);
if (type == 0) return NULL;
hIT8 = cmsIT8Alloc(ContextID);
if (!hIT8) return NULL;
it8 = (cmsIT8*) hIT8;
it8 ->MemoryBlock = (char*) _cmsMalloc(ContextID, len + 1);
strncpy(it8 ->MemoryBlock, (const char*) Ptr, len);
it8 ->MemoryBlock[len] = 0;
strncpy(it8->FileStack[0]->FileName, "", cmsMAX_PATH-1);
it8-> Source = it8 -> MemoryBlock;
if (!ParseIT8(it8, type-1)) {
cmsIT8Free(hIT8);
return FALSE;
}
CookPointers(it8);
it8 ->nTable = 0;
_cmsFree(ContextID, it8->MemoryBlock);
it8 -> MemoryBlock = NULL;
return hIT8;
}
cmsHANDLE CMSEXPORT cmsIT8LoadFromFile(cmsContext ContextID, const char* cFileName)
{
cmsHANDLE hIT8;
cmsIT8* it8;
int type;
_cmsAssert(cFileName != NULL);
type = IsMyFile(cFileName);
if (type == 0) return NULL;
hIT8 = cmsIT8Alloc(ContextID);
it8 = (cmsIT8*) hIT8;
if (!hIT8) return NULL;
it8 ->FileStack[0]->Stream = fopen(cFileName, "rt");
if (!it8 ->FileStack[0]->Stream) {
cmsIT8Free(hIT8);
return NULL;
}
strncpy(it8->FileStack[0]->FileName, cFileName, cmsMAX_PATH-1);
it8->FileStack[0]->FileName[cmsMAX_PATH-1] = 0;
if (!ParseIT8(it8, type-1)) {
fclose(it8 ->FileStack[0]->Stream);
cmsIT8Free(hIT8);
return NULL;
}
CookPointers(it8);
it8 ->nTable = 0;
if (fclose(it8 ->FileStack[0]->Stream)!= 0) {
cmsIT8Free(hIT8);
return NULL;
}
return hIT8;
}
int CMSEXPORT cmsIT8EnumDataFormat(cmsHANDLE hIT8, char ***SampleNames)
{
cmsIT8* it8 = (cmsIT8*) hIT8;
TABLE* t;
_cmsAssert(hIT8 != NULL);
t = GetTable(it8);
if (SampleNames)
*SampleNames = t -> DataFormat;
return t -> nSamples;
}
cmsUInt32Number CMSEXPORT cmsIT8EnumProperties(cmsHANDLE hIT8, char ***PropertyNames)
{
cmsIT8* it8 = (cmsIT8*) hIT8;
KEYVALUE* p;
cmsUInt32Number n;
char **Props;
TABLE* t;
_cmsAssert(hIT8 != NULL);
t = GetTable(it8);
// Pass#1 - count properties
n = 0;
for (p = t -> HeaderList; p != NULL; p = p->Next) {
n++;
}
Props = (char **) AllocChunk(it8, sizeof(char *) * n);
// Pass#2 - Fill pointers
n = 0;
for (p = t -> HeaderList; p != NULL; p = p->Next) {
Props[n++] = p -> Keyword;
}
*PropertyNames = Props;
return n;
}
cmsUInt32Number CMSEXPORT cmsIT8EnumPropertyMulti(cmsHANDLE hIT8, const char* cProp, const char ***SubpropertyNames)
{
cmsIT8* it8 = (cmsIT8*) hIT8;
KEYVALUE *p, *tmp;
cmsUInt32Number n;
const char **Props;
TABLE* t;
_cmsAssert(hIT8 != NULL);
t = GetTable(it8);
if(!IsAvailableOnList(t->HeaderList, cProp, NULL, &p)) {
*SubpropertyNames = 0;
return 0;
}
// Pass#1 - count properties
n = 0;
for (tmp = p; tmp != NULL; tmp = tmp->NextSubkey) {
if(tmp->Subkey != NULL)
n++;
}
Props = (const char **) AllocChunk(it8, sizeof(char *) * n);
// Pass#2 - Fill pointers
n = 0;
for (tmp = p; tmp != NULL; tmp = tmp->NextSubkey) {
if(tmp->Subkey != NULL)
Props[n++] = p ->Subkey;
}
*SubpropertyNames = Props;
return n;
}
static
int LocatePatch(cmsIT8* it8, const char* cPatch)
{
int i;
const char *data;
TABLE* t = GetTable(it8);
for (i=0; i < t-> nPatches; i++) {
data = GetData(it8, i, t->SampleID);
if (data != NULL) {
if (cmsstrcasecmp(data, cPatch) == 0)
return i;
}
}
// SynError(it8, "Couldn't find patch '%s'\n", cPatch);
return -1;
}
static
int LocateEmptyPatch(cmsIT8* it8)
{
int i;
const char *data;
TABLE* t = GetTable(it8);
for (i=0; i < t-> nPatches; i++) {
data = GetData(it8, i, t->SampleID);
if (data == NULL)
return i;
}
return -1;
}
static
int LocateSample(cmsIT8* it8, const char* cSample)
{
int i;
const char *fld;
TABLE* t = GetTable(it8);
for (i=0; i < t->nSamples; i++) {
fld = GetDataFormat(it8, i);
if (cmsstrcasecmp(fld, cSample) == 0)
return i;
}
return -1;
}
int CMSEXPORT cmsIT8FindDataFormat(cmsHANDLE hIT8, const char* cSample)
{
cmsIT8* it8 = (cmsIT8*) hIT8;
_cmsAssert(hIT8 != NULL);
return LocateSample(it8, cSample);
}
const char* CMSEXPORT cmsIT8GetDataRowCol(cmsHANDLE hIT8, int row, int col)
{
cmsIT8* it8 = (cmsIT8*) hIT8;
_cmsAssert(hIT8 != NULL);
return GetData(it8, row, col);
}
cmsFloat64Number CMSEXPORT cmsIT8GetDataRowColDbl(cmsHANDLE hIT8, int row, int col)
{
const char* Buffer;
Buffer = cmsIT8GetDataRowCol(hIT8, row, col);
if (Buffer == NULL) return 0.0;
return ParseFloatNumber(Buffer);
}
cmsBool CMSEXPORT cmsIT8SetDataRowCol(cmsHANDLE hIT8, int row, int col, const char* Val)
{
cmsIT8* it8 = (cmsIT8*) hIT8;
_cmsAssert(hIT8 != NULL);
return SetData(it8, row, col, Val);
}
cmsBool CMSEXPORT cmsIT8SetDataRowColDbl(cmsHANDLE hIT8, int row, int col, cmsFloat64Number Val)
{
cmsIT8* it8 = (cmsIT8*) hIT8;
char Buff[256];
_cmsAssert(hIT8 != NULL);
sprintf(Buff, it8->DoubleFormatter, Val);
return SetData(it8, row, col, Buff);
}
const char* CMSEXPORT cmsIT8GetData(cmsHANDLE hIT8, const char* cPatch, const char* cSample)
{
cmsIT8* it8 = (cmsIT8*) hIT8;
int iField, iSet;
_cmsAssert(hIT8 != NULL);
iField = LocateSample(it8, cSample);
if (iField < 0) {
return NULL;
}
iSet = LocatePatch(it8, cPatch);
if (iSet < 0) {
return NULL;
}
return GetData(it8, iSet, iField);
}
cmsFloat64Number CMSEXPORT cmsIT8GetDataDbl(cmsHANDLE it8, const char* cPatch, const char* cSample)
{
const char* Buffer;
Buffer = cmsIT8GetData(it8, cPatch, cSample);
return ParseFloatNumber(Buffer);
}
cmsBool CMSEXPORT cmsIT8SetData(cmsHANDLE hIT8, const char* cPatch, const char* cSample, const char *Val)
{
cmsIT8* it8 = (cmsIT8*) hIT8;
int iField, iSet;
TABLE* t;
_cmsAssert(hIT8 != NULL);
t = GetTable(it8);
iField = LocateSample(it8, cSample);
if (iField < 0)
return FALSE;
if (t-> nPatches == 0) {
AllocateDataFormat(it8);
AllocateDataSet(it8);
CookPointers(it8);
}
if (cmsstrcasecmp(cSample, "SAMPLE_ID") == 0) {
iSet = LocateEmptyPatch(it8);
if (iSet < 0) {
return SynError(it8, "Couldn't add more patches '%s'\n", cPatch);
}
iField = t -> SampleID;
}
else {
iSet = LocatePatch(it8, cPatch);
if (iSet < 0) {
return FALSE;
}
}
return SetData(it8, iSet, iField, Val);
}
cmsBool CMSEXPORT cmsIT8SetDataDbl(cmsHANDLE hIT8, const char* cPatch,
const char* cSample,
cmsFloat64Number Val)
{
cmsIT8* it8 = (cmsIT8*) hIT8;
char Buff[256];
_cmsAssert(hIT8 != NULL);
snprintf(Buff, 255, it8->DoubleFormatter, Val);
return cmsIT8SetData(hIT8, cPatch, cSample, Buff);
}
// Buffer should get MAXSTR at least
const char* CMSEXPORT cmsIT8GetPatchName(cmsHANDLE hIT8, int nPatch, char* buffer)
{
cmsIT8* it8 = (cmsIT8*) hIT8;
TABLE* t;
char* Data;
_cmsAssert(hIT8 != NULL);
t = GetTable(it8);
Data = GetData(it8, nPatch, t->SampleID);
if (!Data) return NULL;
if (!buffer) return Data;
strncpy(buffer, Data, MAXSTR-1);
buffer[MAXSTR-1] = 0;
return buffer;
}
int CMSEXPORT cmsIT8GetPatchByName(cmsHANDLE hIT8, const char *cPatch)
{
_cmsAssert(hIT8 != NULL);
return LocatePatch((cmsIT8*)hIT8, cPatch);
}
cmsUInt32Number CMSEXPORT cmsIT8TableCount(cmsHANDLE hIT8)
{
cmsIT8* it8 = (cmsIT8*) hIT8;
_cmsAssert(hIT8 != NULL);
return it8 ->TablesCount;
}
// This handles the "LABEL" extension.
// Label, nTable, Type
int CMSEXPORT cmsIT8SetTableByLabel(cmsHANDLE hIT8, const char* cSet, const char* cField, const char* ExpectedType)
{
const char* cLabelFld;
char Type[256], Label[256];
int nTable;
_cmsAssert(hIT8 != NULL);
if (cField != NULL && *cField == 0)
cField = "LABEL";
if (cField == NULL)
cField = "LABEL";
cLabelFld = cmsIT8GetData(hIT8, cSet, cField);
if (!cLabelFld) return -1;
if (sscanf(cLabelFld, "%255s %d %255s", Label, &nTable, Type) != 3)
return -1;
if (ExpectedType != NULL && *ExpectedType == 0)
ExpectedType = NULL;
if (ExpectedType) {
if (cmsstrcasecmp(Type, ExpectedType) != 0) return -1;
}
return cmsIT8SetTable(hIT8, nTable);
}
cmsBool CMSEXPORT cmsIT8SetIndexColumn(cmsHANDLE hIT8, const char* cSample)
{
cmsIT8* it8 = (cmsIT8*) hIT8;
int pos;
_cmsAssert(hIT8 != NULL);
pos = LocateSample(it8, cSample);
if(pos == -1)
return FALSE;
it8->Tab[it8->nTable].SampleID = pos;
return TRUE;
}
void CMSEXPORT cmsIT8DefineDblFormat(cmsHANDLE hIT8, const char* Formatter)
{
cmsIT8* it8 = (cmsIT8*) hIT8;
_cmsAssert(hIT8 != NULL);
if (Formatter == NULL)
strcpy(it8->DoubleFormatter, DEFAULT_DBL_FORMAT);
else
strncpy(it8->DoubleFormatter, Formatter, sizeof(it8->DoubleFormatter));
it8 ->DoubleFormatter[sizeof(it8 ->DoubleFormatter)-1] = 0;
}
|
42 | ./little-cms/src/cmsxform.c | //---------------------------------------------------------------------------------
//
// Little Color Management System
// Copyright (c) 1998-2011 Marti Maria Saguer
//
// Permission is hereby granted, free of charge, to any person obtaining
// a copy of this software and associated documentation files (the "Software"),
// to deal in the Software without restriction, including without limitation
// the rights to use, copy, modify, merge, publish, distribute, sublicense,
// and/or sell copies of the Software, and to permit persons to whom the Software
// is furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO
// THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
// LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
// OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
// WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
//
//---------------------------------------------------------------------------------
//
#include "lcms2_internal.h"
// Transformations stuff
// -----------------------------------------------------------------------
// Alarm codes for 16-bit transformations, because the fixed range of containers there are
// no values left to mark out of gamut. volatile is C99 per 6.2.5
static volatile cmsUInt16Number Alarm[cmsMAXCHANNELS] = { 0x7F00, 0x7F00, 0x7F00, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0};
static volatile cmsFloat64Number GlobalAdaptationState = 1;
// The adaptation state may be defaulted by this function. If you don't like it, use the extended transform routine
cmsFloat64Number CMSEXPORT cmsSetAdaptationState(cmsFloat64Number d)
{
cmsFloat64Number OldVal = GlobalAdaptationState;
if (d >= 0)
GlobalAdaptationState = d;
return OldVal;
}
// Alarm codes are always global
void CMSEXPORT cmsSetAlarmCodes(cmsUInt16Number NewAlarm[cmsMAXCHANNELS])
{
int i;
_cmsAssert(NewAlarm != NULL);
for (i=0; i < cmsMAXCHANNELS; i++)
Alarm[i] = NewAlarm[i];
}
// You can get the codes cas well
void CMSEXPORT cmsGetAlarmCodes(cmsUInt16Number OldAlarm[cmsMAXCHANNELS])
{
int i;
_cmsAssert(OldAlarm != NULL);
for (i=0; i < cmsMAXCHANNELS; i++)
OldAlarm[i] = Alarm[i];
}
// Get rid of transform resources
void CMSEXPORT cmsDeleteTransform(cmsHTRANSFORM hTransform)
{
_cmsTRANSFORM* p = (_cmsTRANSFORM*) hTransform;
_cmsAssert(p != NULL);
if (p -> GamutCheck)
cmsPipelineFree(p -> GamutCheck);
if (p -> Lut)
cmsPipelineFree(p -> Lut);
if (p ->InputColorant)
cmsFreeNamedColorList(p ->InputColorant);
if (p -> OutputColorant)
cmsFreeNamedColorList(p ->OutputColorant);
if (p ->Sequence)
cmsFreeProfileSequenceDescription(p ->Sequence);
if (p ->UserData)
p ->FreeUserData(p ->ContextID, p ->UserData);
_cmsFree(p ->ContextID, (void *) p);
}
// Apply transform.
void CMSEXPORT cmsDoTransform(cmsHTRANSFORM Transform,
const void* InputBuffer,
void* OutputBuffer,
cmsUInt32Number Size)
{
_cmsTRANSFORM* p = (_cmsTRANSFORM*) Transform;
p -> xform(p, InputBuffer, OutputBuffer, Size, Size);
}
// Apply transform.
void CMSEXPORT cmsDoTransformStride(cmsHTRANSFORM Transform,
const void* InputBuffer,
void* OutputBuffer,
cmsUInt32Number Size, cmsUInt32Number Stride)
{
_cmsTRANSFORM* p = (_cmsTRANSFORM*) Transform;
p -> xform(p, InputBuffer, OutputBuffer, Size, Stride);
}
// Transform routines ----------------------------------------------------------------------------------------------------------
// Float xform converts floats. Since there are no performance issues, one routine does all job, including gamut check.
// Note that because extended range, we can use a -1.0 value for out of gamut in this case.
static
void FloatXFORM(_cmsTRANSFORM* p,
const void* in,
void* out, cmsUInt32Number Size, cmsUInt32Number Stride)
{
cmsUInt8Number* accum;
cmsUInt8Number* output;
cmsFloat32Number fIn[cmsMAXCHANNELS], fOut[cmsMAXCHANNELS];
cmsFloat32Number OutOfGamut;
cmsUInt32Number i, j;
accum = (cmsUInt8Number*) in;
output = (cmsUInt8Number*) out;
for (i=0; i < Size; i++) {
accum = p -> FromInputFloat(p, fIn, accum, Stride);
// Any gamut chack to do?
if (p ->GamutCheck != NULL) {
// Evaluate gamut marker.
cmsPipelineEvalFloat( fIn, &OutOfGamut, p ->GamutCheck);
// Is current color out of gamut?
if (OutOfGamut > 0.0) {
// Certainly, out of gamut
for (j=0; j < cmsMAXCHANNELS; j++)
fOut[j] = -1.0;
}
else {
// No, proceed normally
cmsPipelineEvalFloat(fIn, fOut, p -> Lut);
}
}
else {
// No gamut check at all
cmsPipelineEvalFloat(fIn, fOut, p -> Lut);
}
// Back to asked representation
output = p -> ToOutputFloat(p, fOut, output, Stride);
}
}
// 16 bit precision -----------------------------------------------------------------------------------------------------------
// Null transformation, only applies formatters. No cachΘ
static
void NullXFORM(_cmsTRANSFORM* p,
const void* in,
void* out, cmsUInt32Number Size,
cmsUInt32Number Stride)
{
cmsUInt8Number* accum;
cmsUInt8Number* output;
cmsUInt16Number wIn[cmsMAXCHANNELS];
cmsUInt32Number i, n;
accum = (cmsUInt8Number*) in;
output = (cmsUInt8Number*) out;
n = Size; // Buffer len
for (i=0; i < n; i++) {
accum = p -> FromInput(p, wIn, accum, Stride);
output = p -> ToOutput(p, wIn, output, Stride);
}
}
// No gamut check, no cache, 16 bits
static
void PrecalculatedXFORM(_cmsTRANSFORM* p,
const void* in,
void* out, cmsUInt32Number Size, cmsUInt32Number Stride)
{
register cmsUInt8Number* accum;
register cmsUInt8Number* output;
cmsUInt16Number wIn[cmsMAXCHANNELS], wOut[cmsMAXCHANNELS];
cmsUInt32Number i, n;
accum = (cmsUInt8Number*) in;
output = (cmsUInt8Number*) out;
n = Size;
for (i=0; i < n; i++) {
accum = p -> FromInput(p, wIn, accum, Stride);
p ->Lut ->Eval16Fn(wIn, wOut, p -> Lut->Data);
output = p -> ToOutput(p, wOut, output, Stride);
}
}
// Auxiliar: Handle precalculated gamut check
static
void TransformOnePixelWithGamutCheck(_cmsTRANSFORM* p,
const cmsUInt16Number wIn[],
cmsUInt16Number wOut[])
{
cmsUInt16Number wOutOfGamut;
p ->GamutCheck ->Eval16Fn(wIn, &wOutOfGamut, p ->GamutCheck ->Data);
if (wOutOfGamut >= 1) {
cmsUInt16Number i;
for (i=0; i < p ->Lut->OutputChannels; i++)
wOut[i] = Alarm[i];
}
else
p ->Lut ->Eval16Fn(wIn, wOut, p -> Lut->Data);
}
// Gamut check, No cachΘ, 16 bits.
static
void PrecalculatedXFORMGamutCheck(_cmsTRANSFORM* p,
const void* in,
void* out, cmsUInt32Number Size, cmsUInt32Number Stride)
{
cmsUInt8Number* accum;
cmsUInt8Number* output;
cmsUInt16Number wIn[cmsMAXCHANNELS], wOut[cmsMAXCHANNELS];
cmsUInt32Number i, n;
accum = (cmsUInt8Number*) in;
output = (cmsUInt8Number*) out;
n = Size; // Buffer len
for (i=0; i < n; i++) {
accum = p -> FromInput(p, wIn, accum, Stride);
TransformOnePixelWithGamutCheck(p, wIn, wOut);
output = p -> ToOutput(p, wOut, output, Stride);
}
}
// No gamut check, CachΘ, 16 bits,
static
void CachedXFORM(_cmsTRANSFORM* p,
const void* in,
void* out, cmsUInt32Number Size, cmsUInt32Number Stride)
{
cmsUInt8Number* accum;
cmsUInt8Number* output;
cmsUInt16Number wIn[cmsMAXCHANNELS], wOut[cmsMAXCHANNELS];
cmsUInt32Number i, n;
_cmsCACHE Cache;
accum = (cmsUInt8Number*) in;
output = (cmsUInt8Number*) out;
n = Size; // Buffer len
// Empty buffers for quick memcmp
memset(wIn, 0, sizeof(wIn));
memset(wOut, 0, sizeof(wOut));
// Get copy of zero cache
memcpy(&Cache, &p ->Cache, sizeof(Cache));
for (i=0; i < n; i++) {
accum = p -> FromInput(p, wIn, accum, Stride);
if (memcmp(wIn, Cache.CacheIn, sizeof(Cache.CacheIn)) == 0) {
memcpy(wOut, Cache.CacheOut, sizeof(Cache.CacheOut));
}
else {
p ->Lut ->Eval16Fn(wIn, wOut, p -> Lut->Data);
memcpy(Cache.CacheIn, wIn, sizeof(Cache.CacheIn));
memcpy(Cache.CacheOut, wOut, sizeof(Cache.CacheOut));
}
output = p -> ToOutput(p, wOut, output, Stride);
}
}
// All those nice features together
static
void CachedXFORMGamutCheck(_cmsTRANSFORM* p,
const void* in,
void* out, cmsUInt32Number Size, cmsUInt32Number Stride)
{
cmsUInt8Number* accum;
cmsUInt8Number* output;
cmsUInt16Number wIn[cmsMAXCHANNELS], wOut[cmsMAXCHANNELS];
cmsUInt32Number i, n;
_cmsCACHE Cache;
accum = (cmsUInt8Number*) in;
output = (cmsUInt8Number*) out;
n = Size; // Buffer len
// Empty buffers for quick memcmp
memset(wIn, 0, sizeof(cmsUInt16Number) * cmsMAXCHANNELS);
memset(wOut, 0, sizeof(cmsUInt16Number) * cmsMAXCHANNELS);
// Get copy of zero cache
memcpy(&Cache, &p ->Cache, sizeof(Cache));
for (i=0; i < n; i++) {
accum = p -> FromInput(p, wIn, accum, Stride);
if (memcmp(wIn, Cache.CacheIn, sizeof(Cache.CacheIn)) == 0) {
memcpy(wOut, Cache.CacheOut, sizeof(Cache.CacheOut));
}
else {
TransformOnePixelWithGamutCheck(p, wIn, wOut);
memcpy(Cache.CacheIn, wIn, sizeof(Cache.CacheIn));
memcpy(Cache.CacheOut, wOut, sizeof(Cache.CacheOut));
}
output = p -> ToOutput(p, wOut, output, Stride);
}
}
// -------------------------------------------------------------------------------------------------------------
// List of used-defined transform factories
typedef struct _cmsTransformCollection_st {
_cmsTransformFactory Factory;
struct _cmsTransformCollection_st *Next;
} _cmsTransformCollection;
// The linked list head
static _cmsTransformCollection* TransformCollection = NULL;
// Register new ways to transform
cmsBool _cmsRegisterTransformPlugin(cmsContext id, cmsPluginBase* Data)
{
cmsPluginTransform* Plugin = (cmsPluginTransform*) Data;
_cmsTransformCollection* fl;
if (Data == NULL) {
// Free the chain. Memory is safely freed at exit
TransformCollection = NULL;
return TRUE;
}
// Factory callback is required
if (Plugin ->Factory == NULL) return FALSE;
fl = (_cmsTransformCollection*) _cmsPluginMalloc(id, sizeof(_cmsTransformCollection));
if (fl == NULL) return FALSE;
// Copy the parameters
fl ->Factory = Plugin ->Factory;
// Keep linked list
fl ->Next = TransformCollection;
TransformCollection = fl;
// All is ok
return TRUE;
}
void CMSEXPORT _cmsSetTransformUserData(struct _cmstransform_struct *CMMcargo, void* ptr, _cmsFreeUserDataFn FreePrivateDataFn)
{
_cmsAssert(CMMcargo != NULL);
CMMcargo ->UserData = ptr;
CMMcargo ->FreeUserData = FreePrivateDataFn;
}
// returns the pointer defined by the plug-in to store private data
void * CMSEXPORT _cmsGetTransformUserData(struct _cmstransform_struct *CMMcargo)
{
_cmsAssert(CMMcargo != NULL);
return CMMcargo ->UserData;
}
// returns the current formatters
void CMSEXPORT _cmsGetTransformFormatters16(struct _cmstransform_struct *CMMcargo, cmsFormatter16* FromInput, cmsFormatter16* ToOutput)
{
_cmsAssert(CMMcargo != NULL);
if (FromInput) *FromInput = CMMcargo ->FromInput;
if (ToOutput) *ToOutput = CMMcargo ->ToOutput;
}
void CMSEXPORT _cmsGetTransformFormattersFloat(struct _cmstransform_struct *CMMcargo, cmsFormatterFloat* FromInput, cmsFormatterFloat* ToOutput)
{
_cmsAssert(CMMcargo != NULL);
if (FromInput) *FromInput = CMMcargo ->FromInputFloat;
if (ToOutput) *ToOutput = CMMcargo ->ToOutputFloat;
}
// Allocate transform struct and set it to defaults. Ask the optimization plug-in about if those formats are proper
// for separated transforms. If this is the case,
static
_cmsTRANSFORM* AllocEmptyTransform(cmsContext ContextID, cmsPipeline* lut,
cmsUInt32Number Intent, cmsUInt32Number* InputFormat, cmsUInt32Number* OutputFormat, cmsUInt32Number* dwFlags)
{
_cmsTransformCollection* Plugin;
// Allocate needed memory
_cmsTRANSFORM* p = (_cmsTRANSFORM*) _cmsMallocZero(ContextID, sizeof(_cmsTRANSFORM));
if (!p) return NULL;
// Store the proposed pipeline
p ->Lut = lut;
// Let's see if any plug-in want to do the transform by itself
for (Plugin = TransformCollection;
Plugin != NULL;
Plugin = Plugin ->Next) {
if (Plugin ->Factory(&p->xform, &p->UserData, &p ->FreeUserData, &p ->Lut, InputFormat, OutputFormat, dwFlags)) {
// Last plugin in the declaration order takes control. We just keep
// the original parameters as a logging.
// Note that cmsFLAGS_CAN_CHANGE_FORMATTER is not set, so by default
// an optimized transform is not reusable. The plug-in can, however, change
// the flags and make it suitable.
p ->ContextID = ContextID;
p ->InputFormat = *InputFormat;
p ->OutputFormat = *OutputFormat;
p ->dwOriginalFlags = *dwFlags;
// Fill the formatters just in case the optimized routine is interested.
// No error is thrown if the formatter doesn't exist. It is up to the optimization
// factory to decide what to do in those cases.
p ->FromInput = _cmsGetFormatter(*InputFormat, cmsFormatterInput, CMS_PACK_FLAGS_16BITS).Fmt16;
p ->ToOutput = _cmsGetFormatter(*OutputFormat, cmsFormatterOutput, CMS_PACK_FLAGS_16BITS).Fmt16;
p ->FromInputFloat = _cmsGetFormatter(*InputFormat, cmsFormatterInput, CMS_PACK_FLAGS_FLOAT).FmtFloat;
p ->ToOutputFloat = _cmsGetFormatter(*OutputFormat, cmsFormatterOutput, CMS_PACK_FLAGS_FLOAT).FmtFloat;
return p;
}
}
// Not suitable for the transform plug-in, let's check the pipeline plug-in
if (p ->Lut != NULL)
_cmsOptimizePipeline(&p->Lut, Intent, InputFormat, OutputFormat, dwFlags);
// Check whatever this is a true floating point transform
if (_cmsFormatterIsFloat(*InputFormat) && _cmsFormatterIsFloat(*OutputFormat)) {
// Get formatter function always return a valid union, but the contents of this union may be NULL.
p ->FromInputFloat = _cmsGetFormatter(*InputFormat, cmsFormatterInput, CMS_PACK_FLAGS_FLOAT).FmtFloat;
p ->ToOutputFloat = _cmsGetFormatter(*OutputFormat, cmsFormatterOutput, CMS_PACK_FLAGS_FLOAT).FmtFloat;
*dwFlags |= cmsFLAGS_CAN_CHANGE_FORMATTER;
if (p ->FromInputFloat == NULL || p ->ToOutputFloat == NULL) {
cmsSignalError(ContextID, cmsERROR_UNKNOWN_EXTENSION, "Unsupported raster format");
_cmsFree(ContextID, p);
return NULL;
}
// Float transforms don't use cachΘ, always are non-NULL
p ->xform = FloatXFORM;
}
else {
if (*InputFormat == 0 && *OutputFormat == 0) {
p ->FromInput = p ->ToOutput = NULL;
*dwFlags |= cmsFLAGS_CAN_CHANGE_FORMATTER;
}
else {
int BytesPerPixelInput;
p ->FromInput = _cmsGetFormatter(*InputFormat, cmsFormatterInput, CMS_PACK_FLAGS_16BITS).Fmt16;
p ->ToOutput = _cmsGetFormatter(*OutputFormat, cmsFormatterOutput, CMS_PACK_FLAGS_16BITS).Fmt16;
if (p ->FromInput == NULL || p ->ToOutput == NULL) {
cmsSignalError(ContextID, cmsERROR_UNKNOWN_EXTENSION, "Unsupported raster format");
_cmsFree(ContextID, p);
return NULL;
}
BytesPerPixelInput = T_BYTES(p ->InputFormat);
if (BytesPerPixelInput == 0 || BytesPerPixelInput >= 2)
*dwFlags |= cmsFLAGS_CAN_CHANGE_FORMATTER;
}
if (*dwFlags & cmsFLAGS_NULLTRANSFORM) {
p ->xform = NullXFORM;
}
else {
if (*dwFlags & cmsFLAGS_NOCACHE) {
if (*dwFlags & cmsFLAGS_GAMUTCHECK)
p ->xform = PrecalculatedXFORMGamutCheck; // Gamut check, no cachΘ
else
p ->xform = PrecalculatedXFORM; // No cachΘ, no gamut check
}
else {
if (*dwFlags & cmsFLAGS_GAMUTCHECK)
p ->xform = CachedXFORMGamutCheck; // Gamut check, cachΘ
else
p ->xform = CachedXFORM; // No gamut check, cachΘ
}
}
}
p ->InputFormat = *InputFormat;
p ->OutputFormat = *OutputFormat;
p ->dwOriginalFlags = *dwFlags;
p ->ContextID = ContextID;
p ->UserData = NULL;
return p;
}
static
cmsBool GetXFormColorSpaces(int nProfiles, cmsHPROFILE hProfiles[], cmsColorSpaceSignature* Input, cmsColorSpaceSignature* Output)
{
cmsColorSpaceSignature ColorSpaceIn, ColorSpaceOut;
cmsColorSpaceSignature PostColorSpace;
int i;
if (nProfiles <= 0) return FALSE;
if (hProfiles[0] == NULL) return FALSE;
*Input = PostColorSpace = cmsGetColorSpace(hProfiles[0]);
for (i=0; i < nProfiles; i++) {
cmsProfileClassSignature cls;
cmsHPROFILE hProfile = hProfiles[i];
int lIsInput = (PostColorSpace != cmsSigXYZData) &&
(PostColorSpace != cmsSigLabData);
if (hProfile == NULL) return FALSE;
cls = cmsGetDeviceClass(hProfile);
if (cls == cmsSigNamedColorClass) {
ColorSpaceIn = cmsSig1colorData;
ColorSpaceOut = (nProfiles > 1) ? cmsGetPCS(hProfile) : cmsGetColorSpace(hProfile);
}
else
if (lIsInput || (cls == cmsSigLinkClass)) {
ColorSpaceIn = cmsGetColorSpace(hProfile);
ColorSpaceOut = cmsGetPCS(hProfile);
}
else
{
ColorSpaceIn = cmsGetPCS(hProfile);
ColorSpaceOut = cmsGetColorSpace(hProfile);
}
if (i==0)
*Input = ColorSpaceIn;
PostColorSpace = ColorSpaceOut;
}
*Output = PostColorSpace;
return TRUE;
}
// Check colorspace
static
cmsBool IsProperColorSpace(cmsColorSpaceSignature Check, cmsUInt32Number dwFormat)
{
int Space1 = T_COLORSPACE(dwFormat);
int Space2 = _cmsLCMScolorSpace(Check);
if (Space1 == PT_ANY) return TRUE;
if (Space1 == Space2) return TRUE;
if (Space1 == PT_LabV2 && Space2 == PT_Lab) return TRUE;
if (Space1 == PT_Lab && Space2 == PT_LabV2) return TRUE;
return FALSE;
}
// ----------------------------------------------------------------------------------------------------------------
static
void SetWhitePoint(cmsCIEXYZ* wtPt, const cmsCIEXYZ* src)
{
if (src == NULL) {
wtPt ->X = cmsD50X;
wtPt ->Y = cmsD50Y;
wtPt ->Z = cmsD50Z;
}
else {
wtPt ->X = src->X;
wtPt ->Y = src->Y;
wtPt ->Z = src->Z;
}
}
// New to lcms 2.0 -- have all parameters available.
cmsHTRANSFORM CMSEXPORT cmsCreateExtendedTransform(cmsContext ContextID,
cmsUInt32Number nProfiles, cmsHPROFILE hProfiles[],
cmsBool BPC[],
cmsUInt32Number Intents[],
cmsFloat64Number AdaptationStates[],
cmsHPROFILE hGamutProfile,
cmsUInt32Number nGamutPCSposition,
cmsUInt32Number InputFormat,
cmsUInt32Number OutputFormat,
cmsUInt32Number dwFlags)
{
_cmsTRANSFORM* xform;
cmsColorSpaceSignature EntryColorSpace;
cmsColorSpaceSignature ExitColorSpace;
cmsPipeline* Lut;
cmsUInt32Number LastIntent = Intents[nProfiles-1];
// If it is a fake transform
if (dwFlags & cmsFLAGS_NULLTRANSFORM)
{
return AllocEmptyTransform(ContextID, NULL, INTENT_PERCEPTUAL, &InputFormat, &OutputFormat, &dwFlags);
}
// If gamut check is requested, make sure we have a gamut profile
if (dwFlags & cmsFLAGS_GAMUTCHECK) {
if (hGamutProfile == NULL) dwFlags &= ~cmsFLAGS_GAMUTCHECK;
}
// On floating point transforms, inhibit cache
if (_cmsFormatterIsFloat(InputFormat) || _cmsFormatterIsFloat(OutputFormat))
dwFlags |= cmsFLAGS_NOCACHE;
// Mark entry/exit spaces
if (!GetXFormColorSpaces(nProfiles, hProfiles, &EntryColorSpace, &ExitColorSpace)) {
cmsSignalError(ContextID, cmsERROR_NULL, "NULL input profiles on transform");
return NULL;
}
// Check if proper colorspaces
if (!IsProperColorSpace(EntryColorSpace, InputFormat)) {
cmsSignalError(ContextID, cmsERROR_COLORSPACE_CHECK, "Wrong input color space on transform");
return NULL;
}
if (!IsProperColorSpace(ExitColorSpace, OutputFormat)) {
cmsSignalError(ContextID, cmsERROR_COLORSPACE_CHECK, "Wrong output color space on transform");
return NULL;
}
// Create a pipeline with all transformations
Lut = _cmsLinkProfiles(ContextID, nProfiles, Intents, hProfiles, BPC, AdaptationStates, dwFlags);
if (Lut == NULL) {
cmsSignalError(ContextID, cmsERROR_NOT_SUITABLE, "Couldn't link the profiles");
return NULL;
}
// Check channel count
if ((cmsChannelsOf(EntryColorSpace) != cmsPipelineInputChannels(Lut)) ||
(cmsChannelsOf(ExitColorSpace) != cmsPipelineOutputChannels(Lut))) {
cmsSignalError(ContextID, cmsERROR_NOT_SUITABLE, "Channel count doesn't match. Profile is corrupted");
return NULL;
}
// All seems ok
xform = AllocEmptyTransform(ContextID, Lut, LastIntent, &InputFormat, &OutputFormat, &dwFlags);
if (xform == NULL) {
return NULL;
}
// Keep values
xform ->EntryColorSpace = EntryColorSpace;
xform ->ExitColorSpace = ExitColorSpace;
xform ->RenderingIntent = Intents[nProfiles-1];
// Take white points
SetWhitePoint(&xform->EntryWhitePoint, (cmsCIEXYZ*) cmsReadTag(hProfiles[0], cmsSigMediaWhitePointTag));
SetWhitePoint(&xform->ExitWhitePoint, (cmsCIEXYZ*) cmsReadTag(hProfiles[nProfiles-1], cmsSigMediaWhitePointTag));
// Create a gamut check LUT if requested
if (hGamutProfile != NULL && (dwFlags & cmsFLAGS_GAMUTCHECK))
xform ->GamutCheck = _cmsCreateGamutCheckPipeline(ContextID, hProfiles,
BPC, Intents,
AdaptationStates,
nGamutPCSposition,
hGamutProfile);
// Try to read input and output colorant table
if (cmsIsTag(hProfiles[0], cmsSigColorantTableTag)) {
// Input table can only come in this way.
xform ->InputColorant = cmsDupNamedColorList((cmsNAMEDCOLORLIST*) cmsReadTag(hProfiles[0], cmsSigColorantTableTag));
}
// Output is a little bit more complex.
if (cmsGetDeviceClass(hProfiles[nProfiles-1]) == cmsSigLinkClass) {
// This tag may exist only on devicelink profiles.
if (cmsIsTag(hProfiles[nProfiles-1], cmsSigColorantTableOutTag)) {
// It may be NULL if error
xform ->OutputColorant = cmsDupNamedColorList((cmsNAMEDCOLORLIST*) cmsReadTag(hProfiles[nProfiles-1], cmsSigColorantTableOutTag));
}
} else {
if (cmsIsTag(hProfiles[nProfiles-1], cmsSigColorantTableTag)) {
xform -> OutputColorant = cmsDupNamedColorList((cmsNAMEDCOLORLIST*) cmsReadTag(hProfiles[nProfiles-1], cmsSigColorantTableTag));
}
}
// Store the sequence of profiles
if (dwFlags & cmsFLAGS_KEEP_SEQUENCE) {
xform ->Sequence = _cmsCompileProfileSequence(ContextID, nProfiles, hProfiles);
}
else
xform ->Sequence = NULL;
// If this is a cached transform, init first value, which is zero (16 bits only)
if (!(dwFlags & cmsFLAGS_NOCACHE)) {
memset(&xform ->Cache.CacheIn, 0, sizeof(xform ->Cache.CacheIn));
if (xform ->GamutCheck != NULL) {
TransformOnePixelWithGamutCheck(xform, xform ->Cache.CacheIn, xform->Cache.CacheOut);
}
else {
xform ->Lut ->Eval16Fn(xform ->Cache.CacheIn, xform->Cache.CacheOut, xform -> Lut->Data);
}
}
return (cmsHTRANSFORM) xform;
}
// Multiprofile transforms: Gamut check is not available here, as it is unclear from which profile the gamut comes.
cmsHTRANSFORM CMSEXPORT cmsCreateMultiprofileTransformTHR(cmsContext ContextID,
cmsHPROFILE hProfiles[],
cmsUInt32Number nProfiles,
cmsUInt32Number InputFormat,
cmsUInt32Number OutputFormat,
cmsUInt32Number Intent,
cmsUInt32Number dwFlags)
{
cmsUInt32Number i;
cmsBool BPC[256];
cmsUInt32Number Intents[256];
cmsFloat64Number AdaptationStates[256];
if (nProfiles <= 0 || nProfiles > 255) {
cmsSignalError(ContextID, cmsERROR_RANGE, "Wrong number of profiles. 1..255 expected, %d found.", nProfiles);
return NULL;
}
for (i=0; i < nProfiles; i++) {
BPC[i] = dwFlags & cmsFLAGS_BLACKPOINTCOMPENSATION ? TRUE : FALSE;
Intents[i] = Intent;
AdaptationStates[i] = GlobalAdaptationState;
}
return cmsCreateExtendedTransform(ContextID, nProfiles, hProfiles, BPC, Intents, AdaptationStates, NULL, 0, InputFormat, OutputFormat, dwFlags);
}
cmsHTRANSFORM CMSEXPORT cmsCreateMultiprofileTransform(cmsHPROFILE hProfiles[],
cmsUInt32Number nProfiles,
cmsUInt32Number InputFormat,
cmsUInt32Number OutputFormat,
cmsUInt32Number Intent,
cmsUInt32Number dwFlags)
{
if (nProfiles <= 0 || nProfiles > 255) {
cmsSignalError(NULL, cmsERROR_RANGE, "Wrong number of profiles. 1..255 expected, %d found.", nProfiles);
return NULL;
}
return cmsCreateMultiprofileTransformTHR(cmsGetProfileContextID(hProfiles[0]),
hProfiles,
nProfiles,
InputFormat,
OutputFormat,
Intent,
dwFlags);
}
cmsHTRANSFORM CMSEXPORT cmsCreateTransformTHR(cmsContext ContextID,
cmsHPROFILE Input,
cmsUInt32Number InputFormat,
cmsHPROFILE Output,
cmsUInt32Number OutputFormat,
cmsUInt32Number Intent,
cmsUInt32Number dwFlags)
{
cmsHPROFILE hArray[2];
hArray[0] = Input;
hArray[1] = Output;
return cmsCreateMultiprofileTransformTHR(ContextID, hArray, Output == NULL ? 1 : 2, InputFormat, OutputFormat, Intent, dwFlags);
}
CMSAPI cmsHTRANSFORM CMSEXPORT cmsCreateTransform(cmsHPROFILE Input,
cmsUInt32Number InputFormat,
cmsHPROFILE Output,
cmsUInt32Number OutputFormat,
cmsUInt32Number Intent,
cmsUInt32Number dwFlags)
{
return cmsCreateTransformTHR(cmsGetProfileContextID(Input), Input, InputFormat, Output, OutputFormat, Intent, dwFlags);
}
cmsHTRANSFORM CMSEXPORT cmsCreateProofingTransformTHR(cmsContext ContextID,
cmsHPROFILE InputProfile,
cmsUInt32Number InputFormat,
cmsHPROFILE OutputProfile,
cmsUInt32Number OutputFormat,
cmsHPROFILE ProofingProfile,
cmsUInt32Number nIntent,
cmsUInt32Number ProofingIntent,
cmsUInt32Number dwFlags)
{
cmsHPROFILE hArray[4];
cmsUInt32Number Intents[4];
cmsBool BPC[4];
cmsFloat64Number Adaptation[4];
cmsBool DoBPC = (dwFlags & cmsFLAGS_BLACKPOINTCOMPENSATION) ? TRUE : FALSE;
hArray[0] = InputProfile; hArray[1] = ProofingProfile; hArray[2] = ProofingProfile; hArray[3] = OutputProfile;
Intents[0] = nIntent; Intents[1] = nIntent; Intents[2] = INTENT_RELATIVE_COLORIMETRIC; Intents[3] = ProofingIntent;
BPC[0] = DoBPC; BPC[1] = DoBPC; BPC[2] = 0; BPC[3] = 0;
Adaptation[0] = Adaptation[1] = Adaptation[2] = Adaptation[3] = GlobalAdaptationState;
if (!(dwFlags & (cmsFLAGS_SOFTPROOFING|cmsFLAGS_GAMUTCHECK)))
return cmsCreateTransformTHR(ContextID, InputProfile, InputFormat, OutputProfile, OutputFormat, nIntent, dwFlags);
return cmsCreateExtendedTransform(ContextID, 4, hArray, BPC, Intents, Adaptation,
ProofingProfile, 1, InputFormat, OutputFormat, dwFlags);
}
cmsHTRANSFORM CMSEXPORT cmsCreateProofingTransform(cmsHPROFILE InputProfile,
cmsUInt32Number InputFormat,
cmsHPROFILE OutputProfile,
cmsUInt32Number OutputFormat,
cmsHPROFILE ProofingProfile,
cmsUInt32Number nIntent,
cmsUInt32Number ProofingIntent,
cmsUInt32Number dwFlags)
{
return cmsCreateProofingTransformTHR(cmsGetProfileContextID(InputProfile),
InputProfile,
InputFormat,
OutputProfile,
OutputFormat,
ProofingProfile,
nIntent,
ProofingIntent,
dwFlags);
}
// Grab the ContextID from an open transform. Returns NULL if a NULL transform is passed
cmsContext CMSEXPORT cmsGetTransformContextID(cmsHTRANSFORM hTransform)
{
_cmsTRANSFORM* xform = (_cmsTRANSFORM*) hTransform;
if (xform == NULL) return NULL;
return xform -> ContextID;
}
// Grab the input/output formats
cmsUInt32Number CMSEXPORT cmsGetTransformInputFormat(cmsHTRANSFORM hTransform)
{
_cmsTRANSFORM* xform = (_cmsTRANSFORM*) hTransform;
if (xform == NULL) return 0;
return xform->InputFormat;
}
cmsUInt32Number CMSEXPORT cmsGetTransformOutputFormat(cmsHTRANSFORM hTransform)
{
_cmsTRANSFORM* xform = (_cmsTRANSFORM*) hTransform;
if (xform == NULL) return 0;
return xform->OutputFormat;
}
// For backwards compatibility
cmsBool CMSEXPORT cmsChangeBuffersFormat(cmsHTRANSFORM hTransform,
cmsUInt32Number InputFormat,
cmsUInt32Number OutputFormat)
{
_cmsTRANSFORM* xform = (_cmsTRANSFORM*) hTransform;
cmsFormatter16 FromInput, ToOutput;
// We only can afford to change formatters if previous transform is at least 16 bits
if (!(xform ->dwOriginalFlags & cmsFLAGS_CAN_CHANGE_FORMATTER)) {
cmsSignalError(xform ->ContextID, cmsERROR_NOT_SUITABLE, "cmsChangeBuffersFormat works only on transforms created originally with at least 16 bits of precision");
return FALSE;
}
FromInput = _cmsGetFormatter(InputFormat, cmsFormatterInput, CMS_PACK_FLAGS_16BITS).Fmt16;
ToOutput = _cmsGetFormatter(OutputFormat, cmsFormatterOutput, CMS_PACK_FLAGS_16BITS).Fmt16;
if (FromInput == NULL || ToOutput == NULL) {
cmsSignalError(xform -> ContextID, cmsERROR_UNKNOWN_EXTENSION, "Unsupported raster format");
return FALSE;
}
xform ->InputFormat = InputFormat;
xform ->OutputFormat = OutputFormat;
xform ->FromInput = FromInput;
xform ->ToOutput = ToOutput;
return TRUE;
}
|
43 | ./little-cms/src/cmsmd5.c | //---------------------------------------------------------------------------------
//
// Little Color Management System
// Copyright (c) 1998-2012 Marti Maria Saguer
//
// Permission is hereby granted, free of charge, to any person obtaining
// a copy of this software and associated documentation files (the "Software"),
// to deal in the Software without restriction, including without limitation
// the rights to use, copy, modify, merge, publish, distribute, sublicense,
// and/or sell copies of the Software, and to permit persons to whom the Software
// is furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO
// THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
// LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
// OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
// WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
//
//---------------------------------------------------------------------------------
#include "lcms2_internal.h"
#ifdef CMS_USE_BIG_ENDIAN
static
void byteReverse(cmsUInt8Number * buf, cmsUInt32Number longs)
{
do {
cmsUInt32Number t = _cmsAdjustEndianess32(*(cmsUInt32Number *) buf);
*(cmsUInt32Number *) buf = t;
buf += sizeof(cmsUInt32Number);
} while (--longs);
}
#else
#define byteReverse(buf, len)
#endif
typedef struct {
cmsUInt32Number buf[4];
cmsUInt32Number bits[2];
cmsUInt8Number in[64];
cmsContext ContextID;
} _cmsMD5;
#define F1(x, y, z) (z ^ (x & (y ^ z)))
#define F2(x, y, z) F1(z, x, y)
#define F3(x, y, z) (x ^ y ^ z)
#define F4(x, y, z) (y ^ (x | ~z))
#define STEP(f, w, x, y, z, data, s) \
( w += f(x, y, z) + data, w = w<<s | w>>(32-s), w += x )
static
void MD5_Transform(cmsUInt32Number buf[4], cmsUInt32Number in[16])
{
register cmsUInt32Number a, b, c, d;
a = buf[0];
b = buf[1];
c = buf[2];
d = buf[3];
STEP(F1, a, b, c, d, in[0] + 0xd76aa478, 7);
STEP(F1, d, a, b, c, in[1] + 0xe8c7b756, 12);
STEP(F1, c, d, a, b, in[2] + 0x242070db, 17);
STEP(F1, b, c, d, a, in[3] + 0xc1bdceee, 22);
STEP(F1, a, b, c, d, in[4] + 0xf57c0faf, 7);
STEP(F1, d, a, b, c, in[5] + 0x4787c62a, 12);
STEP(F1, c, d, a, b, in[6] + 0xa8304613, 17);
STEP(F1, b, c, d, a, in[7] + 0xfd469501, 22);
STEP(F1, a, b, c, d, in[8] + 0x698098d8, 7);
STEP(F1, d, a, b, c, in[9] + 0x8b44f7af, 12);
STEP(F1, c, d, a, b, in[10] + 0xffff5bb1, 17);
STEP(F1, b, c, d, a, in[11] + 0x895cd7be, 22);
STEP(F1, a, b, c, d, in[12] + 0x6b901122, 7);
STEP(F1, d, a, b, c, in[13] + 0xfd987193, 12);
STEP(F1, c, d, a, b, in[14] + 0xa679438e, 17);
STEP(F1, b, c, d, a, in[15] + 0x49b40821, 22);
STEP(F2, a, b, c, d, in[1] + 0xf61e2562, 5);
STEP(F2, d, a, b, c, in[6] + 0xc040b340, 9);
STEP(F2, c, d, a, b, in[11] + 0x265e5a51, 14);
STEP(F2, b, c, d, a, in[0] + 0xe9b6c7aa, 20);
STEP(F2, a, b, c, d, in[5] + 0xd62f105d, 5);
STEP(F2, d, a, b, c, in[10] + 0x02441453, 9);
STEP(F2, c, d, a, b, in[15] + 0xd8a1e681, 14);
STEP(F2, b, c, d, a, in[4] + 0xe7d3fbc8, 20);
STEP(F2, a, b, c, d, in[9] + 0x21e1cde6, 5);
STEP(F2, d, a, b, c, in[14] + 0xc33707d6, 9);
STEP(F2, c, d, a, b, in[3] + 0xf4d50d87, 14);
STEP(F2, b, c, d, a, in[8] + 0x455a14ed, 20);
STEP(F2, a, b, c, d, in[13] + 0xa9e3e905, 5);
STEP(F2, d, a, b, c, in[2] + 0xfcefa3f8, 9);
STEP(F2, c, d, a, b, in[7] + 0x676f02d9, 14);
STEP(F2, b, c, d, a, in[12] + 0x8d2a4c8a, 20);
STEP(F3, a, b, c, d, in[5] + 0xfffa3942, 4);
STEP(F3, d, a, b, c, in[8] + 0x8771f681, 11);
STEP(F3, c, d, a, b, in[11] + 0x6d9d6122, 16);
STEP(F3, b, c, d, a, in[14] + 0xfde5380c, 23);
STEP(F3, a, b, c, d, in[1] + 0xa4beea44, 4);
STEP(F3, d, a, b, c, in[4] + 0x4bdecfa9, 11);
STEP(F3, c, d, a, b, in[7] + 0xf6bb4b60, 16);
STEP(F3, b, c, d, a, in[10] + 0xbebfbc70, 23);
STEP(F3, a, b, c, d, in[13] + 0x289b7ec6, 4);
STEP(F3, d, a, b, c, in[0] + 0xeaa127fa, 11);
STEP(F3, c, d, a, b, in[3] + 0xd4ef3085, 16);
STEP(F3, b, c, d, a, in[6] + 0x04881d05, 23);
STEP(F3, a, b, c, d, in[9] + 0xd9d4d039, 4);
STEP(F3, d, a, b, c, in[12] + 0xe6db99e5, 11);
STEP(F3, c, d, a, b, in[15] + 0x1fa27cf8, 16);
STEP(F3, b, c, d, a, in[2] + 0xc4ac5665, 23);
STEP(F4, a, b, c, d, in[0] + 0xf4292244, 6);
STEP(F4, d, a, b, c, in[7] + 0x432aff97, 10);
STEP(F4, c, d, a, b, in[14] + 0xab9423a7, 15);
STEP(F4, b, c, d, a, in[5] + 0xfc93a039, 21);
STEP(F4, a, b, c, d, in[12] + 0x655b59c3, 6);
STEP(F4, d, a, b, c, in[3] + 0x8f0ccc92, 10);
STEP(F4, c, d, a, b, in[10] + 0xffeff47d, 15);
STEP(F4, b, c, d, a, in[1] + 0x85845dd1, 21);
STEP(F4, a, b, c, d, in[8] + 0x6fa87e4f, 6);
STEP(F4, d, a, b, c, in[15] + 0xfe2ce6e0, 10);
STEP(F4, c, d, a, b, in[6] + 0xa3014314, 15);
STEP(F4, b, c, d, a, in[13] + 0x4e0811a1, 21);
STEP(F4, a, b, c, d, in[4] + 0xf7537e82, 6);
STEP(F4, d, a, b, c, in[11] + 0xbd3af235, 10);
STEP(F4, c, d, a, b, in[2] + 0x2ad7d2bb, 15);
STEP(F4, b, c, d, a, in[9] + 0xeb86d391, 21);
buf[0] += a;
buf[1] += b;
buf[2] += c;
buf[3] += d;
}
// Create a MD5 object
static
cmsHANDLE MD5alloc(cmsContext ContextID)
{
_cmsMD5* ctx = (_cmsMD5*) _cmsMallocZero(ContextID, sizeof(_cmsMD5));
if (ctx == NULL) return NULL;
ctx ->ContextID = ContextID;
ctx->buf[0] = 0x67452301;
ctx->buf[1] = 0xefcdab89;
ctx->buf[2] = 0x98badcfe;
ctx->buf[3] = 0x10325476;
ctx->bits[0] = 0;
ctx->bits[1] = 0;
return (cmsHANDLE) ctx;
}
static
void MD5add(cmsHANDLE Handle, cmsUInt8Number* buf, cmsUInt32Number len)
{
_cmsMD5* ctx = (_cmsMD5*) Handle;
cmsUInt32Number t;
t = ctx->bits[0];
if ((ctx->bits[0] = t + (len << 3)) < t)
ctx->bits[1]++;
ctx->bits[1] += len >> 29;
t = (t >> 3) & 0x3f;
if (t) {
cmsUInt8Number *p = (cmsUInt8Number *) ctx->in + t;
t = 64 - t;
if (len < t) {
memmove(p, buf, len);
return;
}
memmove(p, buf, t);
byteReverse(ctx->in, 16);
MD5_Transform(ctx->buf, (cmsUInt32Number *) ctx->in);
buf += t;
len -= t;
}
while (len >= 64) {
memmove(ctx->in, buf, 64);
byteReverse(ctx->in, 16);
MD5_Transform(ctx->buf, (cmsUInt32Number *) ctx->in);
buf += 64;
len -= 64;
}
memmove(ctx->in, buf, len);
}
// Destroy the object and return the checksum
static
void MD5finish(cmsProfileID* ProfileID, cmsHANDLE Handle)
{
_cmsMD5* ctx = (_cmsMD5*) Handle;
cmsUInt32Number count;
cmsUInt8Number *p;
count = (ctx->bits[0] >> 3) & 0x3F;
p = ctx->in + count;
*p++ = 0x80;
count = 64 - 1 - count;
if (count < 8) {
memset(p, 0, count);
byteReverse(ctx->in, 16);
MD5_Transform(ctx->buf, (cmsUInt32Number *) ctx->in);
memset(ctx->in, 0, 56);
} else {
memset(p, 0, count - 8);
}
byteReverse(ctx->in, 14);
((cmsUInt32Number *) ctx->in)[14] = ctx->bits[0];
((cmsUInt32Number *) ctx->in)[15] = ctx->bits[1];
MD5_Transform(ctx->buf, (cmsUInt32Number *) ctx->in);
byteReverse((cmsUInt8Number *) ctx->buf, 4);
memmove(ProfileID ->ID8, ctx->buf, 16);
_cmsFree(ctx ->ContextID, ctx);
}
// Assuming io points to an ICC profile, compute and store MD5 checksum
// In the header, rendering intentent, attributes and ID should be set to zero
// before computing MD5 checksum (per 6.1.13 in ICC spec)
cmsBool CMSEXPORT cmsMD5computeID(cmsHPROFILE hProfile)
{
cmsContext ContextID;
cmsUInt32Number BytesNeeded;
cmsUInt8Number* Mem = NULL;
cmsHANDLE MD5 = NULL;
_cmsICCPROFILE* Icc = (_cmsICCPROFILE*) hProfile;
_cmsICCPROFILE Keep;
_cmsAssert(hProfile != NULL);
ContextID = cmsGetProfileContextID(hProfile);
// Save a copy of the profile header
memmove(&Keep, Icc, sizeof(_cmsICCPROFILE));
// Set RI, attributes and ID
memset(&Icc ->attributes, 0, sizeof(Icc ->attributes));
Icc ->RenderingIntent = 0;
memset(&Icc ->ProfileID, 0, sizeof(Icc ->ProfileID));
// Compute needed storage
if (!cmsSaveProfileToMem(hProfile, NULL, &BytesNeeded)) goto Error;
// Allocate memory
Mem = (cmsUInt8Number*) _cmsMalloc(ContextID, BytesNeeded);
if (Mem == NULL) goto Error;
// Save to temporary storage
if (!cmsSaveProfileToMem(hProfile, Mem, &BytesNeeded)) goto Error;
// Create MD5 object
MD5 = MD5alloc(ContextID);
if (MD5 == NULL) goto Error;
// Add all bytes
MD5add(MD5, Mem, BytesNeeded);
// Temp storage is no longer needed
_cmsFree(ContextID, Mem);
// Restore header
memmove(Icc, &Keep, sizeof(_cmsICCPROFILE));
// And store the ID
MD5finish(&Icc ->ProfileID, MD5);
return TRUE;
Error:
// Free resources as something went wrong
// "MD5" cannot be other than NULL here, so no need to free it
if (Mem != NULL) _cmsFree(ContextID, Mem);
memmove(Icc, &Keep, sizeof(_cmsICCPROFILE));
return FALSE;
}
|
44 | ./little-cms/src/cmsgmt.c | //---------------------------------------------------------------------------------
//
// Little Color Management System
// Copyright (c) 1998-2012 Marti Maria Saguer
//
// Permission is hereby granted, free of charge, to any person obtaining
// a copy of this software and associated documentation files (the "Software"),
// to deal in the Software without restriction, including without limitation
// the rights to use, copy, modify, merge, publish, distribute, sublicense,
// and/or sell copies of the Software, and to permit persons to whom the Software
// is furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO
// THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
// LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
// OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
// WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
//
//---------------------------------------------------------------------------------
//
#include "lcms2_internal.h"
// Auxiliar: append a Lab identity after the given sequence of profiles
// and return the transform. Lab profile is closed, rest of profiles are kept open.
cmsHTRANSFORM _cmsChain2Lab(cmsContext ContextID,
cmsUInt32Number nProfiles,
cmsUInt32Number InputFormat,
cmsUInt32Number OutputFormat,
const cmsUInt32Number Intents[],
const cmsHPROFILE hProfiles[],
const cmsBool BPC[],
const cmsFloat64Number AdaptationStates[],
cmsUInt32Number dwFlags)
{
cmsHTRANSFORM xform;
cmsHPROFILE hLab;
cmsHPROFILE ProfileList[256];
cmsBool BPCList[256];
cmsFloat64Number AdaptationList[256];
cmsUInt32Number IntentList[256];
cmsUInt32Number i;
// This is a rather big number and there is no need of dynamic memory
// since we are adding a profile, 254 + 1 = 255 and this is the limit
if (nProfiles > 254) return NULL;
// The output space
hLab = cmsCreateLab4ProfileTHR(ContextID, NULL);
if (hLab == NULL) return NULL;
// Create a copy of parameters
for (i=0; i < nProfiles; i++) {
ProfileList[i] = hProfiles[i];
BPCList[i] = BPC[i];
AdaptationList[i] = AdaptationStates[i];
IntentList[i] = Intents[i];
}
// Place Lab identity at chain's end.
ProfileList[nProfiles] = hLab;
BPCList[nProfiles] = 0;
AdaptationList[nProfiles] = 1.0;
IntentList[nProfiles] = INTENT_RELATIVE_COLORIMETRIC;
// Create the transform
xform = cmsCreateExtendedTransform(ContextID, nProfiles + 1, ProfileList,
BPCList,
IntentList,
AdaptationList,
NULL, 0,
InputFormat,
OutputFormat,
dwFlags);
cmsCloseProfile(hLab);
return xform;
}
// Compute K -> L* relationship. Flags may include black point compensation. In this case,
// the relationship is assumed from the profile with BPC to a black point zero.
static
cmsToneCurve* ComputeKToLstar(cmsContext ContextID,
cmsUInt32Number nPoints,
cmsUInt32Number nProfiles,
const cmsUInt32Number Intents[],
const cmsHPROFILE hProfiles[],
const cmsBool BPC[],
const cmsFloat64Number AdaptationStates[],
cmsUInt32Number dwFlags)
{
cmsToneCurve* out = NULL;
cmsUInt32Number i;
cmsHTRANSFORM xform;
cmsCIELab Lab;
cmsFloat32Number cmyk[4];
cmsFloat32Number* SampledPoints;
xform = _cmsChain2Lab(ContextID, nProfiles, TYPE_CMYK_FLT, TYPE_Lab_DBL, Intents, hProfiles, BPC, AdaptationStates, dwFlags);
if (xform == NULL) return NULL;
SampledPoints = (cmsFloat32Number*) _cmsCalloc(ContextID, nPoints, sizeof(cmsFloat32Number));
if (SampledPoints == NULL) goto Error;
for (i=0; i < nPoints; i++) {
cmyk[0] = 0;
cmyk[1] = 0;
cmyk[2] = 0;
cmyk[3] = (cmsFloat32Number) ((i * 100.0) / (nPoints-1));
cmsDoTransform(xform, cmyk, &Lab, 1);
SampledPoints[i]= (cmsFloat32Number) (1.0 - Lab.L / 100.0); // Negate K for easier operation
}
out = cmsBuildTabulatedToneCurveFloat(ContextID, nPoints, SampledPoints);
Error:
cmsDeleteTransform(xform);
if (SampledPoints) _cmsFree(ContextID, SampledPoints);
return out;
}
// Compute Black tone curve on a CMYK -> CMYK transform. This is done by
// using the proof direction on both profiles to find K->L* relationship
// then joining both curves. dwFlags may include black point compensation.
cmsToneCurve* _cmsBuildKToneCurve(cmsContext ContextID,
cmsUInt32Number nPoints,
cmsUInt32Number nProfiles,
const cmsUInt32Number Intents[],
const cmsHPROFILE hProfiles[],
const cmsBool BPC[],
const cmsFloat64Number AdaptationStates[],
cmsUInt32Number dwFlags)
{
cmsToneCurve *in, *out, *KTone;
// Make sure CMYK -> CMYK
if (cmsGetColorSpace(hProfiles[0]) != cmsSigCmykData ||
cmsGetColorSpace(hProfiles[nProfiles-1])!= cmsSigCmykData) return NULL;
// Make sure last is an output profile
if (cmsGetDeviceClass(hProfiles[nProfiles - 1]) != cmsSigOutputClass) return NULL;
// Create individual curves. BPC works also as each K to L* is
// computed as a BPC to zero black point in case of L*
in = ComputeKToLstar(ContextID, nPoints, nProfiles - 1, Intents, hProfiles, BPC, AdaptationStates, dwFlags);
if (in == NULL) return NULL;
out = ComputeKToLstar(ContextID, nPoints, 1,
Intents + (nProfiles - 1),
hProfiles + (nProfiles - 1),
BPC + (nProfiles - 1),
AdaptationStates + (nProfiles - 1),
dwFlags);
if (out == NULL) {
cmsFreeToneCurve(in);
return NULL;
}
// Build the relationship. This effectively limits the maximum accuracy to 16 bits, but
// since this is used on black-preserving LUTs, we are not loosing accuracy in any case
KTone = cmsJoinToneCurve(ContextID, in, out, nPoints);
// Get rid of components
cmsFreeToneCurve(in); cmsFreeToneCurve(out);
// Something went wrong...
if (KTone == NULL) return NULL;
// Make sure it is monotonic
if (!cmsIsToneCurveMonotonic(KTone)) {
cmsFreeToneCurve(KTone);
return NULL;
}
return KTone;
}
// Gamut LUT Creation -----------------------------------------------------------------------------------------
// Used by gamut & softproofing
typedef struct {
cmsHTRANSFORM hInput; // From whatever input color space. 16 bits to DBL
cmsHTRANSFORM hForward, hReverse; // Transforms going from Lab to colorant and back
cmsFloat64Number Thereshold; // The thereshold after which is considered out of gamut
} GAMUTCHAIN;
// This sampler does compute gamut boundaries by comparing original
// values with a transform going back and forth. Values above ERR_THERESHOLD
// of maximum are considered out of gamut.
#define ERR_THERESHOLD 5
static
int GamutSampler(register const cmsUInt16Number In[], register cmsUInt16Number Out[], register void* Cargo)
{
GAMUTCHAIN* t = (GAMUTCHAIN* ) Cargo;
cmsCIELab LabIn1, LabOut1;
cmsCIELab LabIn2, LabOut2;
cmsUInt16Number Proof[cmsMAXCHANNELS], Proof2[cmsMAXCHANNELS];
cmsFloat64Number dE1, dE2, ErrorRatio;
// Assume in-gamut by default.
ErrorRatio = 1.0;
// Convert input to Lab
cmsDoTransform(t -> hInput, In, &LabIn1, 1);
// converts from PCS to colorant. This always
// does return in-gamut values,
cmsDoTransform(t -> hForward, &LabIn1, Proof, 1);
// Now, do the inverse, from colorant to PCS.
cmsDoTransform(t -> hReverse, Proof, &LabOut1, 1);
memmove(&LabIn2, &LabOut1, sizeof(cmsCIELab));
// Try again, but this time taking Check as input
cmsDoTransform(t -> hForward, &LabOut1, Proof2, 1);
cmsDoTransform(t -> hReverse, Proof2, &LabOut2, 1);
// Take difference of direct value
dE1 = cmsDeltaE(&LabIn1, &LabOut1);
// Take difference of converted value
dE2 = cmsDeltaE(&LabIn2, &LabOut2);
// if dE1 is small and dE2 is small, value is likely to be in gamut
if (dE1 < t->Thereshold && dE2 < t->Thereshold)
Out[0] = 0;
else {
// if dE1 is small and dE2 is big, undefined. Assume in gamut
if (dE1 < t->Thereshold && dE2 > t->Thereshold)
Out[0] = 0;
else
// dE1 is big and dE2 is small, clearly out of gamut
if (dE1 > t->Thereshold && dE2 < t->Thereshold)
Out[0] = (cmsUInt16Number) _cmsQuickFloor((dE1 - t->Thereshold) + .5);
else {
// dE1 is big and dE2 is also big, could be due to perceptual mapping
// so take error ratio
if (dE2 == 0.0)
ErrorRatio = dE1;
else
ErrorRatio = dE1 / dE2;
if (ErrorRatio > t->Thereshold)
Out[0] = (cmsUInt16Number) _cmsQuickFloor((ErrorRatio - t->Thereshold) + .5);
else
Out[0] = 0;
}
}
return TRUE;
}
// Does compute a gamut LUT going back and forth across pcs -> relativ. colorimetric intent -> pcs
// the dE obtained is then annotated on the LUT. Values truely out of gamut are clipped to dE = 0xFFFE
// and values changed are supposed to be handled by any gamut remapping, so, are out of gamut as well.
//
// **WARNING: This algorithm does assume that gamut remapping algorithms does NOT move in-gamut colors,
// of course, many perceptual and saturation intents does not work in such way, but relativ. ones should.
cmsPipeline* _cmsCreateGamutCheckPipeline(cmsContext ContextID,
cmsHPROFILE hProfiles[],
cmsBool BPC[],
cmsUInt32Number Intents[],
cmsFloat64Number AdaptationStates[],
cmsUInt32Number nGamutPCSposition,
cmsHPROFILE hGamut)
{
cmsHPROFILE hLab;
cmsPipeline* Gamut;
cmsStage* CLUT;
cmsUInt32Number dwFormat;
GAMUTCHAIN Chain;
int nChannels, nGridpoints;
cmsColorSpaceSignature ColorSpace;
cmsUInt32Number i;
cmsHPROFILE ProfileList[256];
cmsBool BPCList[256];
cmsFloat64Number AdaptationList[256];
cmsUInt32Number IntentList[256];
memset(&Chain, 0, sizeof(GAMUTCHAIN));
if (nGamutPCSposition <= 0 || nGamutPCSposition > 255) {
cmsSignalError(ContextID, cmsERROR_RANGE, "Wrong position of PCS. 1..255 expected, %d found.", nGamutPCSposition);
return NULL;
}
hLab = cmsCreateLab4ProfileTHR(ContextID, NULL);
if (hLab == NULL) return NULL;
// The figure of merit. On matrix-shaper profiles, should be almost zero as
// the conversion is pretty exact. On LUT based profiles, different resolutions
// of input and output CLUT may result in differences.
if (cmsIsMatrixShaper(hGamut)) {
Chain.Thereshold = 1.0;
}
else {
Chain.Thereshold = ERR_THERESHOLD;
}
// Create a copy of parameters
for (i=0; i < nGamutPCSposition; i++) {
ProfileList[i] = hProfiles[i];
BPCList[i] = BPC[i];
AdaptationList[i] = AdaptationStates[i];
IntentList[i] = Intents[i];
}
// Fill Lab identity
ProfileList[nGamutPCSposition] = hLab;
BPCList[nGamutPCSposition] = 0;
AdaptationList[nGamutPCSposition] = 1.0;
IntentList[nGamutPCSposition] = INTENT_RELATIVE_COLORIMETRIC;
ColorSpace = cmsGetColorSpace(hGamut);
nChannels = cmsChannelsOf(ColorSpace);
nGridpoints = _cmsReasonableGridpointsByColorspace(ColorSpace, cmsFLAGS_HIGHRESPRECALC);
dwFormat = (CHANNELS_SH(nChannels)|BYTES_SH(2));
// 16 bits to Lab double
Chain.hInput = cmsCreateExtendedTransform(ContextID,
nGamutPCSposition + 1,
ProfileList,
BPCList,
IntentList,
AdaptationList,
NULL, 0,
dwFormat, TYPE_Lab_DBL,
cmsFLAGS_NOCACHE);
// Does create the forward step. Lab double to device
dwFormat = (CHANNELS_SH(nChannels)|BYTES_SH(2));
Chain.hForward = cmsCreateTransformTHR(ContextID,
hLab, TYPE_Lab_DBL,
hGamut, dwFormat,
INTENT_RELATIVE_COLORIMETRIC,
cmsFLAGS_NOCACHE);
// Does create the backwards step
Chain.hReverse = cmsCreateTransformTHR(ContextID, hGamut, dwFormat,
hLab, TYPE_Lab_DBL,
INTENT_RELATIVE_COLORIMETRIC,
cmsFLAGS_NOCACHE);
// All ok?
if (Chain.hInput && Chain.hForward && Chain.hReverse) {
// Go on, try to compute gamut LUT from PCS. This consist on a single channel containing
// dE when doing a transform back and forth on the colorimetric intent.
Gamut = cmsPipelineAlloc(ContextID, 3, 1);
if (Gamut != NULL) {
CLUT = cmsStageAllocCLut16bit(ContextID, nGridpoints, nChannels, 1, NULL);
if (!cmsPipelineInsertStage(Gamut, cmsAT_BEGIN, CLUT)) {
cmsPipelineFree(Gamut);
Gamut = NULL;
}
else {
cmsStageSampleCLut16bit(CLUT, GamutSampler, (void*) &Chain, 0);
}
}
}
else
Gamut = NULL; // Didn't work...
// Free all needed stuff.
if (Chain.hInput) cmsDeleteTransform(Chain.hInput);
if (Chain.hForward) cmsDeleteTransform(Chain.hForward);
if (Chain.hReverse) cmsDeleteTransform(Chain.hReverse);
if (hLab) cmsCloseProfile(hLab);
// And return computed hull
return Gamut;
}
// Total Area Coverage estimation ----------------------------------------------------------------
typedef struct {
cmsUInt32Number nOutputChans;
cmsHTRANSFORM hRoundTrip;
cmsFloat32Number MaxTAC;
cmsFloat32Number MaxInput[cmsMAXCHANNELS];
} cmsTACestimator;
// This callback just accounts the maximum ink dropped in the given node. It does not populate any
// memory, as the destination table is NULL. Its only purpose it to know the global maximum.
static
int EstimateTAC(register const cmsUInt16Number In[], register cmsUInt16Number Out[], register void * Cargo)
{
cmsTACestimator* bp = (cmsTACestimator*) Cargo;
cmsFloat32Number RoundTrip[cmsMAXCHANNELS];
cmsUInt32Number i;
cmsFloat32Number Sum;
// Evaluate the xform
cmsDoTransform(bp->hRoundTrip, In, RoundTrip, 1);
// All all amounts of ink
for (Sum=0, i=0; i < bp ->nOutputChans; i++)
Sum += RoundTrip[i];
// If above maximum, keep track of input values
if (Sum > bp ->MaxTAC) {
bp ->MaxTAC = Sum;
for (i=0; i < bp ->nOutputChans; i++) {
bp ->MaxInput[i] = In[i];
}
}
return TRUE;
cmsUNUSED_PARAMETER(Out);
}
// Detect Total area coverage of the profile
cmsFloat64Number CMSEXPORT cmsDetectTAC(cmsHPROFILE hProfile)
{
cmsTACestimator bp;
cmsUInt32Number dwFormatter;
cmsUInt32Number GridPoints[MAX_INPUT_DIMENSIONS];
cmsHPROFILE hLab;
cmsContext ContextID = cmsGetProfileContextID(hProfile);
// TAC only works on output profiles
if (cmsGetDeviceClass(hProfile) != cmsSigOutputClass) {
return 0;
}
// Create a fake formatter for result
dwFormatter = cmsFormatterForColorspaceOfProfile(hProfile, 4, TRUE);
bp.nOutputChans = T_CHANNELS(dwFormatter);
bp.MaxTAC = 0; // Initial TAC is 0
// for safety
if (bp.nOutputChans >= cmsMAXCHANNELS) return 0;
hLab = cmsCreateLab4ProfileTHR(ContextID, NULL);
if (hLab == NULL) return 0;
// Setup a roundtrip on perceptual intent in output profile for TAC estimation
bp.hRoundTrip = cmsCreateTransformTHR(ContextID, hLab, TYPE_Lab_16,
hProfile, dwFormatter, INTENT_PERCEPTUAL, cmsFLAGS_NOOPTIMIZE|cmsFLAGS_NOCACHE);
cmsCloseProfile(hLab);
if (bp.hRoundTrip == NULL) return 0;
// For L* we only need black and white. For C* we need many points
GridPoints[0] = 6;
GridPoints[1] = 74;
GridPoints[2] = 74;
if (!cmsSliceSpace16(3, GridPoints, EstimateTAC, &bp)) {
bp.MaxTAC = 0;
}
cmsDeleteTransform(bp.hRoundTrip);
// Results in %
return bp.MaxTAC;
}
// Carefully, clamp on CIELab space.
cmsBool CMSEXPORT cmsDesaturateLab(cmsCIELab* Lab,
double amax, double amin,
double bmax, double bmin)
{
// Whole Luma surface to zero
if (Lab -> L < 0) {
Lab-> L = Lab->a = Lab-> b = 0.0;
return FALSE;
}
// Clamp white, DISCARD HIGHLIGHTS. This is done
// in such way because icc spec doesn't allow the
// use of L>100 as a highlight means.
if (Lab->L > 100)
Lab -> L = 100;
// Check out gamut prism, on a, b faces
if (Lab -> a < amin || Lab->a > amax||
Lab -> b < bmin || Lab->b > bmax) {
cmsCIELCh LCh;
double h, slope;
// Falls outside a, b limits. Transports to LCh space,
// and then do the clipping
if (Lab -> a == 0.0) { // Is hue exactly 90?
// atan will not work, so clamp here
Lab -> b = Lab->b < 0 ? bmin : bmax;
return TRUE;
}
cmsLab2LCh(&LCh, Lab);
slope = Lab -> b / Lab -> a;
h = LCh.h;
// There are 4 zones
if ((h >= 0. && h < 45.) ||
(h >= 315 && h <= 360.)) {
// clip by amax
Lab -> a = amax;
Lab -> b = amax * slope;
}
else
if (h >= 45. && h < 135.)
{
// clip by bmax
Lab -> b = bmax;
Lab -> a = bmax / slope;
}
else
if (h >= 135. && h < 225.) {
// clip by amin
Lab -> a = amin;
Lab -> b = amin * slope;
}
else
if (h >= 225. && h < 315.) {
// clip by bmin
Lab -> b = bmin;
Lab -> a = bmin / slope;
}
else {
cmsSignalError(0, cmsERROR_RANGE, "Invalid angle");
return FALSE;
}
}
return TRUE;
}
|
45 | ./little-cms/src/cmsgamma.c | //---------------------------------------------------------------------------------
//
// Little Color Management System
// Copyright (c) 1998-2013 Marti Maria Saguer
//
// Permission is hereby granted, free of charge, to any person obtaining
// a copy of this software and associated documentation files (the "Software"),
// to deal in the Software without restriction, including without limitation
// the rights to use, copy, modify, merge, publish, distribute, sublicense,
// and/or sell copies of the Software, and to permit persons to whom the Software
// is furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO
// THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
// LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
// OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
// WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
//
//---------------------------------------------------------------------------------
//
#include "lcms2_internal.h"
// Tone curves are powerful constructs that can contain curves specified in diverse ways.
// The curve is stored in segments, where each segment can be sampled or specified by parameters.
// a 16.bit simplification of the *whole* curve is kept for optimization purposes. For float operation,
// each segment is evaluated separately. Plug-ins may be used to define new parametric schemes,
// each plug-in may define up to MAX_TYPES_IN_LCMS_PLUGIN functions types. For defining a function,
// the plug-in should provide the type id, how many parameters each type has, and a pointer to
// a procedure that evaluates the function. In the case of reverse evaluation, the evaluator will
// be called with the type id as a negative value, and a sampled version of the reversed curve
// will be built.
// ----------------------------------------------------------------- Implementation
// Maxim number of nodes
#define MAX_NODES_IN_CURVE 4097
#define MINUS_INF (-1E22F)
#define PLUS_INF (+1E22F)
// The list of supported parametric curves
typedef struct _cmsParametricCurvesCollection_st {
int nFunctions; // Number of supported functions in this chunk
int FunctionTypes[MAX_TYPES_IN_LCMS_PLUGIN]; // The identification types
int ParameterCount[MAX_TYPES_IN_LCMS_PLUGIN]; // Number of parameters for each function
cmsParametricCurveEvaluator Evaluator; // The evaluator
struct _cmsParametricCurvesCollection_st* Next; // Next in list
} _cmsParametricCurvesCollection;
// This is the default (built-in) evaluator
static cmsFloat64Number DefaultEvalParametricFn(cmsInt32Number Type, const cmsFloat64Number Params[], cmsFloat64Number R);
// The built-in list
static _cmsParametricCurvesCollection DefaultCurves = {
9, // # of curve types
{ 1, 2, 3, 4, 5, 6, 7, 8, 108 }, // Parametric curve ID
{ 1, 3, 4, 5, 7, 4, 5, 5, 1 }, // Parameters by type
DefaultEvalParametricFn, // Evaluator
NULL // Next in chain
};
// The linked list head
static _cmsParametricCurvesCollection* ParametricCurves = &DefaultCurves;
// As a way to install new parametric curves
cmsBool _cmsRegisterParametricCurvesPlugin(cmsContext id, cmsPluginBase* Data)
{
cmsPluginParametricCurves* Plugin = (cmsPluginParametricCurves*) Data;
_cmsParametricCurvesCollection* fl;
if (Data == NULL) {
ParametricCurves = &DefaultCurves;
return TRUE;
}
fl = (_cmsParametricCurvesCollection*) _cmsPluginMalloc(id, sizeof(_cmsParametricCurvesCollection));
if (fl == NULL) return FALSE;
// Copy the parameters
fl ->Evaluator = Plugin ->Evaluator;
fl ->nFunctions = Plugin ->nFunctions;
// Make sure no mem overwrites
if (fl ->nFunctions > MAX_TYPES_IN_LCMS_PLUGIN)
fl ->nFunctions = MAX_TYPES_IN_LCMS_PLUGIN;
// Copy the data
memmove(fl->FunctionTypes, Plugin ->FunctionTypes, fl->nFunctions * sizeof(cmsUInt32Number));
memmove(fl->ParameterCount, Plugin ->ParameterCount, fl->nFunctions * sizeof(cmsUInt32Number));
// Keep linked list
fl ->Next = ParametricCurves;
ParametricCurves = fl;
// All is ok
return TRUE;
}
// Search in type list, return position or -1 if not found
static
int IsInSet(int Type, _cmsParametricCurvesCollection* c)
{
int i;
for (i=0; i < c ->nFunctions; i++)
if (abs(Type) == c ->FunctionTypes[i]) return i;
return -1;
}
// Search for the collection which contains a specific type
static
_cmsParametricCurvesCollection *GetParametricCurveByType(int Type, int* index)
{
_cmsParametricCurvesCollection* c;
int Position;
for (c = ParametricCurves; c != NULL; c = c ->Next) {
Position = IsInSet(Type, c);
if (Position != -1) {
if (index != NULL)
*index = Position;
return c;
}
}
return NULL;
}
// Low level allocate, which takes care of memory details. nEntries may be zero, and in this case
// no optimation curve is computed. nSegments may also be zero in the inverse case, where only the
// optimization curve is given. Both features simultaneously is an error
static
cmsToneCurve* AllocateToneCurveStruct(cmsContext ContextID, cmsInt32Number nEntries,
cmsInt32Number nSegments, const cmsCurveSegment* Segments,
const cmsUInt16Number* Values)
{
cmsToneCurve* p;
int i;
// We allow huge tables, which are then restricted for smoothing operations
if (nEntries > 65530 || nEntries < 0) {
cmsSignalError(ContextID, cmsERROR_RANGE, "Couldn't create tone curve of more than 65530 entries");
return NULL;
}
if (nEntries <= 0 && nSegments <= 0) {
cmsSignalError(ContextID, cmsERROR_RANGE, "Couldn't create tone curve with zero segments and no table");
return NULL;
}
// Allocate all required pointers, etc.
p = (cmsToneCurve*) _cmsMallocZero(ContextID, sizeof(cmsToneCurve));
if (!p) return NULL;
// In this case, there are no segments
if (nSegments <= 0) {
p ->Segments = NULL;
p ->Evals = NULL;
}
else {
p ->Segments = (cmsCurveSegment*) _cmsCalloc(ContextID, nSegments, sizeof(cmsCurveSegment));
if (p ->Segments == NULL) goto Error;
p ->Evals = (cmsParametricCurveEvaluator*) _cmsCalloc(ContextID, nSegments, sizeof(cmsParametricCurveEvaluator));
if (p ->Evals == NULL) goto Error;
}
p -> nSegments = nSegments;
// This 16-bit table contains a limited precision representation of the whole curve and is kept for
// increasing xput on certain operations.
if (nEntries <= 0) {
p ->Table16 = NULL;
}
else {
p ->Table16 = (cmsUInt16Number*) _cmsCalloc(ContextID, nEntries, sizeof(cmsUInt16Number));
if (p ->Table16 == NULL) goto Error;
}
p -> nEntries = nEntries;
// Initialize members if requested
if (Values != NULL && (nEntries > 0)) {
for (i=0; i < nEntries; i++)
p ->Table16[i] = Values[i];
}
// Initialize the segments stuff. The evaluator for each segment is located and a pointer to it
// is placed in advance to maximize performance.
if (Segments != NULL && (nSegments > 0)) {
_cmsParametricCurvesCollection *c;
p ->SegInterp = (cmsInterpParams**) _cmsCalloc(ContextID, nSegments, sizeof(cmsInterpParams*));
if (p ->SegInterp == NULL) goto Error;
for (i=0; i< nSegments; i++) {
// Type 0 is a special marker for table-based curves
if (Segments[i].Type == 0)
p ->SegInterp[i] = _cmsComputeInterpParams(ContextID, Segments[i].nGridPoints, 1, 1, NULL, CMS_LERP_FLAGS_FLOAT);
memmove(&p ->Segments[i], &Segments[i], sizeof(cmsCurveSegment));
if (Segments[i].Type == 0 && Segments[i].SampledPoints != NULL)
p ->Segments[i].SampledPoints = (cmsFloat32Number*) _cmsDupMem(ContextID, Segments[i].SampledPoints, sizeof(cmsFloat32Number) * Segments[i].nGridPoints);
else
p ->Segments[i].SampledPoints = NULL;
c = GetParametricCurveByType(Segments[i].Type, NULL);
if (c != NULL)
p ->Evals[i] = c ->Evaluator;
}
}
p ->InterpParams = _cmsComputeInterpParams(ContextID, p ->nEntries, 1, 1, p->Table16, CMS_LERP_FLAGS_16BITS);
if (p->InterpParams != NULL)
return p;
Error:
if (p -> Segments) _cmsFree(ContextID, p ->Segments);
if (p -> Evals) _cmsFree(ContextID, p -> Evals);
if (p ->Table16) _cmsFree(ContextID, p ->Table16);
_cmsFree(ContextID, p);
return NULL;
}
// Parametric Fn using floating point
static
cmsFloat64Number DefaultEvalParametricFn(cmsInt32Number Type, const cmsFloat64Number Params[], cmsFloat64Number R)
{
cmsFloat64Number e, Val, disc;
switch (Type) {
// X = Y ^ Gamma
case 1:
if (R < 0) {
if (fabs(Params[0] - 1.0) < MATRIX_DET_TOLERANCE)
Val = R;
else
Val = 0;
}
else
Val = pow(R, Params[0]);
break;
// Type 1 Reversed: X = Y ^1/gamma
case -1:
if (R < 0) {
if (fabs(Params[0] - 1.0) < MATRIX_DET_TOLERANCE)
Val = R;
else
Val = 0;
}
else
Val = pow(R, 1/Params[0]);
break;
// CIE 122-1966
// Y = (aX + b)^Gamma | X >= -b/a
// Y = 0 | else
case 2:
disc = -Params[2] / Params[1];
if (R >= disc ) {
e = Params[1]*R + Params[2];
if (e > 0)
Val = pow(e, Params[0]);
else
Val = 0;
}
else
Val = 0;
break;
// Type 2 Reversed
// X = (Y ^1/g - b) / a
case -2:
if (R < 0)
Val = 0;
else
Val = (pow(R, 1.0/Params[0]) - Params[2]) / Params[1];
if (Val < 0)
Val = 0;
break;
// IEC 61966-3
// Y = (aX + b)^Gamma | X <= -b/a
// Y = c | else
case 3:
disc = -Params[2] / Params[1];
if (disc < 0)
disc = 0;
if (R >= disc) {
e = Params[1]*R + Params[2];
if (e > 0)
Val = pow(e, Params[0]) + Params[3];
else
Val = 0;
}
else
Val = Params[3];
break;
// Type 3 reversed
// X=((Y-c)^1/g - b)/a | (Y>=c)
// X=-b/a | (Y<c)
case -3:
if (R >= Params[3]) {
e = R - Params[3];
if (e > 0)
Val = (pow(e, 1/Params[0]) - Params[2]) / Params[1];
else
Val = 0;
}
else {
Val = -Params[2] / Params[1];
}
break;
// IEC 61966-2.1 (sRGB)
// Y = (aX + b)^Gamma | X >= d
// Y = cX | X < d
case 4:
if (R >= Params[4]) {
e = Params[1]*R + Params[2];
if (e > 0)
Val = pow(e, Params[0]);
else
Val = 0;
}
else
Val = R * Params[3];
break;
// Type 4 reversed
// X=((Y^1/g-b)/a) | Y >= (ad+b)^g
// X=Y/c | Y< (ad+b)^g
case -4:
e = Params[1] * Params[4] + Params[2];
if (e < 0)
disc = 0;
else
disc = pow(e, Params[0]);
if (R >= disc) {
Val = (pow(R, 1.0/Params[0]) - Params[2]) / Params[1];
}
else {
Val = R / Params[3];
}
break;
// Y = (aX + b)^Gamma + e | X >= d
// Y = cX + f | X < d
case 5:
if (R >= Params[4]) {
e = Params[1]*R + Params[2];
if (e > 0)
Val = pow(e, Params[0]) + Params[5];
else
Val = Params[5];
}
else
Val = R*Params[3] + Params[6];
break;
// Reversed type 5
// X=((Y-e)1/g-b)/a | Y >=(ad+b)^g+e), cd+f
// X=(Y-f)/c | else
case -5:
disc = Params[3] * Params[4] + Params[6];
if (R >= disc) {
e = R - Params[5];
if (e < 0)
Val = 0;
else
Val = (pow(e, 1.0/Params[0]) - Params[2]) / Params[1];
}
else {
Val = (R - Params[6]) / Params[3];
}
break;
// Types 6,7,8 comes from segmented curves as described in ICCSpecRevision_02_11_06_Float.pdf
// Type 6 is basically identical to type 5 without d
// Y = (a * X + b) ^ Gamma + c
case 6:
e = Params[1]*R + Params[2];
if (e < 0)
Val = Params[3];
else
Val = pow(e, Params[0]) + Params[3];
break;
// ((Y - c) ^1/Gamma - b) / a
case -6:
e = R - Params[3];
if (e < 0)
Val = 0;
else
Val = (pow(e, 1.0/Params[0]) - Params[2]) / Params[1];
break;
// Y = a * log (b * X^Gamma + c) + d
case 7:
e = Params[2] * pow(R, Params[0]) + Params[3];
if (e <= 0)
Val = Params[4];
else
Val = Params[1]*log10(e) + Params[4];
break;
// (Y - d) / a = log(b * X ^Gamma + c)
// pow(10, (Y-d) / a) = b * X ^Gamma + c
// pow((pow(10, (Y-d) / a) - c) / b, 1/g) = X
case -7:
Val = pow((pow(10.0, (R-Params[4]) / Params[1]) - Params[3]) / Params[2], 1.0 / Params[0]);
break;
//Y = a * b^(c*X+d) + e
case 8:
Val = (Params[0] * pow(Params[1], Params[2] * R + Params[3]) + Params[4]);
break;
// Y = (log((y-e) / a) / log(b) - d ) / c
// a=0, b=1, c=2, d=3, e=4,
case -8:
disc = R - Params[4];
if (disc < 0) Val = 0;
else
Val = (log(disc / Params[0]) / log(Params[1]) - Params[3]) / Params[2];
break;
// S-Shaped: (1 - (1-x)^1/g)^1/g
case 108:
Val = pow(1.0 - pow(1 - R, 1/Params[0]), 1/Params[0]);
break;
// y = (1 - (1-x)^1/g)^1/g
// y^g = (1 - (1-x)^1/g)
// 1 - y^g = (1-x)^1/g
// (1 - y^g)^g = 1 - x
// 1 - (1 - y^g)^g
case -108:
Val = 1 - pow(1 - pow(R, Params[0]), Params[0]);
break;
default:
// Unsupported parametric curve. Should never reach here
return 0;
}
return Val;
}
// Evaluate a segmented funtion for a single value. Return -1 if no valid segment found .
// If fn type is 0, perform an interpolation on the table
static
cmsFloat64Number EvalSegmentedFn(const cmsToneCurve *g, cmsFloat64Number R)
{
int i;
for (i = g ->nSegments-1; i >= 0 ; --i) {
// Check for domain
if ((R > g ->Segments[i].x0) && (R <= g ->Segments[i].x1)) {
// Type == 0 means segment is sampled
if (g ->Segments[i].Type == 0) {
cmsFloat32Number R1 = (cmsFloat32Number) (R - g ->Segments[i].x0) / (g ->Segments[i].x1 - g ->Segments[i].x0);
cmsFloat32Number Out;
// Setup the table (TODO: clean that)
g ->SegInterp[i]-> Table = g ->Segments[i].SampledPoints;
g ->SegInterp[i] -> Interpolation.LerpFloat(&R1, &Out, g ->SegInterp[i]);
return Out;
}
else
return g ->Evals[i](g->Segments[i].Type, g ->Segments[i].Params, R);
}
}
return MINUS_INF;
}
// Access to estimated low-res table
cmsUInt32Number CMSEXPORT cmsGetToneCurveEstimatedTableEntries(const cmsToneCurve* t)
{
_cmsAssert(t != NULL);
return t ->nEntries;
}
const cmsUInt16Number* CMSEXPORT cmsGetToneCurveEstimatedTable(const cmsToneCurve* t)
{
_cmsAssert(t != NULL);
return t ->Table16;
}
// Create an empty gamma curve, by using tables. This specifies only the limited-precision part, and leaves the
// floating point description empty.
cmsToneCurve* CMSEXPORT cmsBuildTabulatedToneCurve16(cmsContext ContextID, cmsInt32Number nEntries, const cmsUInt16Number Values[])
{
return AllocateToneCurveStruct(ContextID, nEntries, 0, NULL, Values);
}
static
int EntriesByGamma(cmsFloat64Number Gamma)
{
if (fabs(Gamma - 1.0) < 0.001) return 2;
return 4096;
}
// Create a segmented gamma, fill the table
cmsToneCurve* CMSEXPORT cmsBuildSegmentedToneCurve(cmsContext ContextID,
cmsInt32Number nSegments, const cmsCurveSegment Segments[])
{
int i;
cmsFloat64Number R, Val;
cmsToneCurve* g;
int nGridPoints = 4096;
_cmsAssert(Segments != NULL);
// Optimizatin for identity curves.
if (nSegments == 1 && Segments[0].Type == 1) {
nGridPoints = EntriesByGamma(Segments[0].Params[0]);
}
g = AllocateToneCurveStruct(ContextID, nGridPoints, nSegments, Segments, NULL);
if (g == NULL) return NULL;
// Once we have the floating point version, we can approximate a 16 bit table of 4096 entries
// for performance reasons. This table would normally not be used except on 8/16 bits transforms.
for (i=0; i < nGridPoints; i++) {
R = (cmsFloat64Number) i / (nGridPoints-1);
Val = EvalSegmentedFn(g, R);
// Round and saturate
g ->Table16[i] = _cmsQuickSaturateWord(Val * 65535.0);
}
return g;
}
// Use a segmented curve to store the floating point table
cmsToneCurve* CMSEXPORT cmsBuildTabulatedToneCurveFloat(cmsContext ContextID, cmsUInt32Number nEntries, const cmsFloat32Number values[])
{
cmsCurveSegment Seg[3];
// A segmented tone curve should have function segments in the first and last positions
// Initialize segmented curve part up to 0 to constant value = samples[0]
Seg[0].x0 = MINUS_INF;
Seg[0].x1 = 0;
Seg[0].Type = 6;
Seg[0].Params[0] = 1;
Seg[0].Params[1] = 0;
Seg[0].Params[2] = 0;
Seg[0].Params[3] = values[0];
Seg[0].Params[4] = 0;
// From zero to 1
Seg[1].x0 = 0;
Seg[1].x1 = 1.0;
Seg[1].Type = 0;
Seg[1].nGridPoints = nEntries;
Seg[1].SampledPoints = (cmsFloat32Number*) values;
// Final segment is constant = lastsample
Seg[2].x0 = 1.0;
Seg[2].x1 = PLUS_INF;
Seg[2].Type = 6;
Seg[2].Params[0] = 1;
Seg[2].Params[1] = 0;
Seg[2].Params[2] = 0;
Seg[2].Params[3] = values[nEntries-1];
Seg[2].Params[4] = 0;
return cmsBuildSegmentedToneCurve(ContextID, 3, Seg);
}
// Parametric curves
//
// Parameters goes as: Curve, a, b, c, d, e, f
// Type is the ICC type +1
// if type is negative, then the curve is analyticaly inverted
cmsToneCurve* CMSEXPORT cmsBuildParametricToneCurve(cmsContext ContextID, cmsInt32Number Type, const cmsFloat64Number Params[])
{
cmsCurveSegment Seg0;
int Pos = 0;
cmsUInt32Number size;
_cmsParametricCurvesCollection* c = GetParametricCurveByType(Type, &Pos);
_cmsAssert(Params != NULL);
if (c == NULL) {
cmsSignalError(ContextID, cmsERROR_UNKNOWN_EXTENSION, "Invalid parametric curve type %d", Type);
return NULL;
}
memset(&Seg0, 0, sizeof(Seg0));
Seg0.x0 = MINUS_INF;
Seg0.x1 = PLUS_INF;
Seg0.Type = Type;
size = c->ParameterCount[Pos] * sizeof(cmsFloat64Number);
memmove(Seg0.Params, Params, size);
return cmsBuildSegmentedToneCurve(ContextID, 1, &Seg0);
}
// Build a gamma table based on gamma constant
cmsToneCurve* CMSEXPORT cmsBuildGamma(cmsContext ContextID, cmsFloat64Number Gamma)
{
return cmsBuildParametricToneCurve(ContextID, 1, &Gamma);
}
// Free all memory taken by the gamma curve
void CMSEXPORT cmsFreeToneCurve(cmsToneCurve* Curve)
{
cmsContext ContextID;
if (Curve == NULL) return;
ContextID = Curve ->InterpParams->ContextID;
_cmsFreeInterpParams(Curve ->InterpParams);
if (Curve -> Table16)
_cmsFree(ContextID, Curve ->Table16);
if (Curve ->Segments) {
cmsUInt32Number i;
for (i=0; i < Curve ->nSegments; i++) {
if (Curve ->Segments[i].SampledPoints) {
_cmsFree(ContextID, Curve ->Segments[i].SampledPoints);
}
if (Curve ->SegInterp[i] != 0)
_cmsFreeInterpParams(Curve->SegInterp[i]);
}
_cmsFree(ContextID, Curve ->Segments);
_cmsFree(ContextID, Curve ->SegInterp);
}
if (Curve -> Evals)
_cmsFree(ContextID, Curve -> Evals);
if (Curve) _cmsFree(ContextID, Curve);
}
// Utility function, free 3 gamma tables
void CMSEXPORT cmsFreeToneCurveTriple(cmsToneCurve* Curve[3])
{
_cmsAssert(Curve != NULL);
if (Curve[0] != NULL) cmsFreeToneCurve(Curve[0]);
if (Curve[1] != NULL) cmsFreeToneCurve(Curve[1]);
if (Curve[2] != NULL) cmsFreeToneCurve(Curve[2]);
Curve[0] = Curve[1] = Curve[2] = NULL;
}
// Duplicate a gamma table
cmsToneCurve* CMSEXPORT cmsDupToneCurve(const cmsToneCurve* In)
{
if (In == NULL) return NULL;
return AllocateToneCurveStruct(In ->InterpParams ->ContextID, In ->nEntries, In ->nSegments, In ->Segments, In ->Table16);
}
// Joins two curves for X and Y. Curves should be monotonic.
// We want to get
//
// y = Y^-1(X(t))
//
cmsToneCurve* CMSEXPORT cmsJoinToneCurve(cmsContext ContextID,
const cmsToneCurve* X,
const cmsToneCurve* Y, cmsUInt32Number nResultingPoints)
{
cmsToneCurve* out = NULL;
cmsToneCurve* Yreversed = NULL;
cmsFloat32Number t, x;
cmsFloat32Number* Res = NULL;
cmsUInt32Number i;
_cmsAssert(X != NULL);
_cmsAssert(Y != NULL);
Yreversed = cmsReverseToneCurveEx(nResultingPoints, Y);
if (Yreversed == NULL) goto Error;
Res = (cmsFloat32Number*) _cmsCalloc(ContextID, nResultingPoints, sizeof(cmsFloat32Number));
if (Res == NULL) goto Error;
//Iterate
for (i=0; i < nResultingPoints; i++) {
t = (cmsFloat32Number) i / (nResultingPoints-1);
x = cmsEvalToneCurveFloat(X, t);
Res[i] = cmsEvalToneCurveFloat(Yreversed, x);
}
// Allocate space for output
out = cmsBuildTabulatedToneCurveFloat(ContextID, nResultingPoints, Res);
Error:
if (Res != NULL) _cmsFree(ContextID, Res);
if (Yreversed != NULL) cmsFreeToneCurve(Yreversed);
return out;
}
// Get the surrounding nodes. This is tricky on non-monotonic tables
static
int GetInterval(cmsFloat64Number In, const cmsUInt16Number LutTable[], const struct _cms_interp_struc* p)
{
int i;
int y0, y1;
// A 1 point table is not allowed
if (p -> Domain[0] < 1) return -1;
// Let's see if ascending or descending.
if (LutTable[0] < LutTable[p ->Domain[0]]) {
// Table is overall ascending
for (i=p->Domain[0]-1; i >=0; --i) {
y0 = LutTable[i];
y1 = LutTable[i+1];
if (y0 <= y1) { // Increasing
if (In >= y0 && In <= y1) return i;
}
else
if (y1 < y0) { // Decreasing
if (In >= y1 && In <= y0) return i;
}
}
}
else {
// Table is overall descending
for (i=0; i < (int) p -> Domain[0]; i++) {
y0 = LutTable[i];
y1 = LutTable[i+1];
if (y0 <= y1) { // Increasing
if (In >= y0 && In <= y1) return i;
}
else
if (y1 < y0) { // Decreasing
if (In >= y1 && In <= y0) return i;
}
}
}
return -1;
}
// Reverse a gamma table
cmsToneCurve* CMSEXPORT cmsReverseToneCurveEx(cmsInt32Number nResultSamples, const cmsToneCurve* InCurve)
{
cmsToneCurve *out;
cmsFloat64Number a = 0, b = 0, y, x1, y1, x2, y2;
int i, j;
int Ascending;
_cmsAssert(InCurve != NULL);
// Try to reverse it analytically whatever possible
if (InCurve ->nSegments == 1 && InCurve ->Segments[0].Type > 0 && InCurve -> Segments[0].Type <= 5) {
return cmsBuildParametricToneCurve(InCurve ->InterpParams->ContextID,
-(InCurve -> Segments[0].Type),
InCurve -> Segments[0].Params);
}
// Nope, reverse the table.
out = cmsBuildTabulatedToneCurve16(InCurve ->InterpParams->ContextID, nResultSamples, NULL);
if (out == NULL)
return NULL;
// We want to know if this is an ascending or descending table
Ascending = !cmsIsToneCurveDescending(InCurve);
// Iterate across Y axis
for (i=0; i < nResultSamples; i++) {
y = (cmsFloat64Number) i * 65535.0 / (nResultSamples - 1);
// Find interval in which y is within.
j = GetInterval(y, InCurve->Table16, InCurve->InterpParams);
if (j >= 0) {
// Get limits of interval
x1 = InCurve ->Table16[j];
x2 = InCurve ->Table16[j+1];
y1 = (cmsFloat64Number) (j * 65535.0) / (InCurve ->nEntries - 1);
y2 = (cmsFloat64Number) ((j+1) * 65535.0 ) / (InCurve ->nEntries - 1);
// If collapsed, then use any
if (x1 == x2) {
out ->Table16[i] = _cmsQuickSaturateWord(Ascending ? y2 : y1);
continue;
} else {
// Interpolate
a = (y2 - y1) / (x2 - x1);
b = y2 - a * x2;
}
}
out ->Table16[i] = _cmsQuickSaturateWord(a* y + b);
}
return out;
}
// Reverse a gamma table
cmsToneCurve* CMSEXPORT cmsReverseToneCurve(const cmsToneCurve* InGamma)
{
_cmsAssert(InGamma != NULL);
return cmsReverseToneCurveEx(4096, InGamma);
}
// From: Eilers, P.H.C. (1994) Smoothing and interpolation with finite
// differences. in: Graphic Gems IV, Heckbert, P.S. (ed.), Academic press.
//
// Smoothing and interpolation with second differences.
//
// Input: weights (w), data (y): vector from 1 to m.
// Input: smoothing parameter (lambda), length (m).
// Output: smoothed vector (z): vector from 1 to m.
static
cmsBool smooth2(cmsContext ContextID, cmsFloat32Number w[], cmsFloat32Number y[], cmsFloat32Number z[], cmsFloat32Number lambda, int m)
{
int i, i1, i2;
cmsFloat32Number *c, *d, *e;
cmsBool st;
c = (cmsFloat32Number*) _cmsCalloc(ContextID, MAX_NODES_IN_CURVE, sizeof(cmsFloat32Number));
d = (cmsFloat32Number*) _cmsCalloc(ContextID, MAX_NODES_IN_CURVE, sizeof(cmsFloat32Number));
e = (cmsFloat32Number*) _cmsCalloc(ContextID, MAX_NODES_IN_CURVE, sizeof(cmsFloat32Number));
if (c != NULL && d != NULL && e != NULL) {
d[1] = w[1] + lambda;
c[1] = -2 * lambda / d[1];
e[1] = lambda /d[1];
z[1] = w[1] * y[1];
d[2] = w[2] + 5 * lambda - d[1] * c[1] * c[1];
c[2] = (-4 * lambda - d[1] * c[1] * e[1]) / d[2];
e[2] = lambda / d[2];
z[2] = w[2] * y[2] - c[1] * z[1];
for (i = 3; i < m - 1; i++) {
i1 = i - 1; i2 = i - 2;
d[i]= w[i] + 6 * lambda - c[i1] * c[i1] * d[i1] - e[i2] * e[i2] * d[i2];
c[i] = (-4 * lambda -d[i1] * c[i1] * e[i1])/ d[i];
e[i] = lambda / d[i];
z[i] = w[i] * y[i] - c[i1] * z[i1] - e[i2] * z[i2];
}
i1 = m - 2; i2 = m - 3;
d[m - 1] = w[m - 1] + 5 * lambda -c[i1] * c[i1] * d[i1] - e[i2] * e[i2] * d[i2];
c[m - 1] = (-2 * lambda - d[i1] * c[i1] * e[i1]) / d[m - 1];
z[m - 1] = w[m - 1] * y[m - 1] - c[i1] * z[i1] - e[i2] * z[i2];
i1 = m - 1; i2 = m - 2;
d[m] = w[m] + lambda - c[i1] * c[i1] * d[i1] - e[i2] * e[i2] * d[i2];
z[m] = (w[m] * y[m] - c[i1] * z[i1] - e[i2] * z[i2]) / d[m];
z[m - 1] = z[m - 1] / d[m - 1] - c[m - 1] * z[m];
for (i = m - 2; 1<= i; i--)
z[i] = z[i] / d[i] - c[i] * z[i + 1] - e[i] * z[i + 2];
st = TRUE;
}
else st = FALSE;
if (c != NULL) _cmsFree(ContextID, c);
if (d != NULL) _cmsFree(ContextID, d);
if (e != NULL) _cmsFree(ContextID, e);
return st;
}
// Smooths a curve sampled at regular intervals.
cmsBool CMSEXPORT cmsSmoothToneCurve(cmsToneCurve* Tab, cmsFloat64Number lambda)
{
cmsFloat32Number w[MAX_NODES_IN_CURVE], y[MAX_NODES_IN_CURVE], z[MAX_NODES_IN_CURVE];
int i, nItems, Zeros, Poles;
if (Tab == NULL) return FALSE;
if (cmsIsToneCurveLinear(Tab)) return TRUE; // Nothing to do
nItems = Tab -> nEntries;
if (nItems >= MAX_NODES_IN_CURVE) {
cmsSignalError(Tab ->InterpParams->ContextID, cmsERROR_RANGE, "cmsSmoothToneCurve: too many points.");
return FALSE;
}
memset(w, 0, nItems * sizeof(cmsFloat32Number));
memset(y, 0, nItems * sizeof(cmsFloat32Number));
memset(z, 0, nItems * sizeof(cmsFloat32Number));
for (i=0; i < nItems; i++)
{
y[i+1] = (cmsFloat32Number) Tab -> Table16[i];
w[i+1] = 1.0;
}
if (!smooth2(Tab ->InterpParams->ContextID, w, y, z, (cmsFloat32Number) lambda, nItems)) return FALSE;
// Do some reality - checking...
Zeros = Poles = 0;
for (i=nItems; i > 1; --i) {
if (z[i] == 0.) Zeros++;
if (z[i] >= 65535.) Poles++;
if (z[i] < z[i-1]) {
cmsSignalError(Tab ->InterpParams->ContextID, cmsERROR_RANGE, "cmsSmoothToneCurve: Non-Monotonic.");
return FALSE;
}
}
if (Zeros > (nItems / 3)) {
cmsSignalError(Tab ->InterpParams->ContextID, cmsERROR_RANGE, "cmsSmoothToneCurve: Degenerated, mostly zeros.");
return FALSE;
}
if (Poles > (nItems / 3)) {
cmsSignalError(Tab ->InterpParams->ContextID, cmsERROR_RANGE, "cmsSmoothToneCurve: Degenerated, mostly poles.");
return FALSE;
}
// Seems ok
for (i=0; i < nItems; i++) {
// Clamp to cmsUInt16Number
Tab -> Table16[i] = _cmsQuickSaturateWord(z[i+1]);
}
return TRUE;
}
// Is a table linear? Do not use parametric since we cannot guarantee some weird parameters resulting
// in a linear table. This way assures it is linear in 12 bits, which should be enought in most cases.
cmsBool CMSEXPORT cmsIsToneCurveLinear(const cmsToneCurve* Curve)
{
cmsUInt32Number i;
int diff;
_cmsAssert(Curve != NULL);
for (i=0; i < Curve ->nEntries; i++) {
diff = abs((int) Curve->Table16[i] - (int) _cmsQuantizeVal(i, Curve ->nEntries));
if (diff > 0x0f)
return FALSE;
}
return TRUE;
}
// Same, but for monotonicity
cmsBool CMSEXPORT cmsIsToneCurveMonotonic(const cmsToneCurve* t)
{
int n;
int i, last;
cmsBool lDescending;
_cmsAssert(t != NULL);
// Degenerated curves are monotonic? Ok, let's pass them
n = t ->nEntries;
if (n < 2) return TRUE;
// Curve direction
lDescending = cmsIsToneCurveDescending(t);
if (lDescending) {
last = t ->Table16[0];
for (i = 1; i < n; i++) {
if (t ->Table16[i] - last > 2) // We allow some ripple
return FALSE;
else
last = t ->Table16[i];
}
}
else {
last = t ->Table16[n-1];
for (i = n-2; i >= 0; --i) {
if (t ->Table16[i] - last > 2)
return FALSE;
else
last = t ->Table16[i];
}
}
return TRUE;
}
// Same, but for descending tables
cmsBool CMSEXPORT cmsIsToneCurveDescending(const cmsToneCurve* t)
{
_cmsAssert(t != NULL);
return t ->Table16[0] > t ->Table16[t ->nEntries-1];
}
// Another info fn: is out gamma table multisegment?
cmsBool CMSEXPORT cmsIsToneCurveMultisegment(const cmsToneCurve* t)
{
_cmsAssert(t != NULL);
return t -> nSegments > 1;
}
cmsInt32Number CMSEXPORT cmsGetToneCurveParametricType(const cmsToneCurve* t)
{
_cmsAssert(t != NULL);
if (t -> nSegments != 1) return 0;
return t ->Segments[0].Type;
}
// We need accuracy this time
cmsFloat32Number CMSEXPORT cmsEvalToneCurveFloat(const cmsToneCurve* Curve, cmsFloat32Number v)
{
_cmsAssert(Curve != NULL);
// Check for 16 bits table. If so, this is a limited-precision tone curve
if (Curve ->nSegments == 0) {
cmsUInt16Number In, Out;
In = (cmsUInt16Number) _cmsQuickSaturateWord(v * 65535.0);
Out = cmsEvalToneCurve16(Curve, In);
return (cmsFloat32Number) (Out / 65535.0);
}
return (cmsFloat32Number) EvalSegmentedFn(Curve, v);
}
// We need xput over here
cmsUInt16Number CMSEXPORT cmsEvalToneCurve16(const cmsToneCurve* Curve, cmsUInt16Number v)
{
cmsUInt16Number out;
_cmsAssert(Curve != NULL);
Curve ->InterpParams ->Interpolation.Lerp16(&v, &out, Curve ->InterpParams);
return out;
}
// Least squares fitting.
// A mathematical procedure for finding the best-fitting curve to a given set of points by
// minimizing the sum of the squares of the offsets ("the residuals") of the points from the curve.
// The sum of the squares of the offsets is used instead of the offset absolute values because
// this allows the residuals to be treated as a continuous differentiable quantity.
//
// y = f(x) = x ^ g
//
// R = (yi - (xi^g))
// R2 = (yi - (xi^g))2
// SUM R2 = SUM (yi - (xi^g))2
//
// dR2/dg = -2 SUM x^g log(x)(y - x^g)
// solving for dR2/dg = 0
//
// g = 1/n * SUM(log(y) / log(x))
cmsFloat64Number CMSEXPORT cmsEstimateGamma(const cmsToneCurve* t, cmsFloat64Number Precision)
{
cmsFloat64Number gamma, sum, sum2;
cmsFloat64Number n, x, y, Std;
cmsUInt32Number i;
_cmsAssert(t != NULL);
sum = sum2 = n = 0;
// Excluding endpoints
for (i=1; i < (MAX_NODES_IN_CURVE-1); i++) {
x = (cmsFloat64Number) i / (MAX_NODES_IN_CURVE-1);
y = (cmsFloat64Number) cmsEvalToneCurveFloat(t, (cmsFloat32Number) x);
// Avoid 7% on lower part to prevent
// artifacts due to linear ramps
if (y > 0. && y < 1. && x > 0.07) {
gamma = log(y) / log(x);
sum += gamma;
sum2 += gamma * gamma;
n++;
}
}
// Take a look on SD to see if gamma isn't exponential at all
Std = sqrt((n * sum2 - sum * sum) / (n*(n-1)));
if (Std > Precision)
return -1.0;
return (sum / n); // The mean
}
|
46 | ./little-cms/src/cmswtpnt.c | //---------------------------------------------------------------------------------
//
// Little Color Management System
// Copyright (c) 1998-2012 Marti Maria Saguer
//
// Permission is hereby granted, free of charge, to any person obtaining
// a copy of this software and associated documentation files (the "Software"),
// to deal in the Software without restriction, including without limitation
// the rights to use, copy, modify, merge, publish, distribute, sublicense,
// and/or sell copies of the Software, and to permit persons to whom the Software
// is furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO
// THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
// LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
// OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
// WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
//
//---------------------------------------------------------------------------------
//
#include "lcms2_internal.h"
// D50 - Widely used
const cmsCIEXYZ* CMSEXPORT cmsD50_XYZ(void)
{
static cmsCIEXYZ D50XYZ = {cmsD50X, cmsD50Y, cmsD50Z};
return &D50XYZ;
}
const cmsCIExyY* CMSEXPORT cmsD50_xyY(void)
{
static cmsCIExyY D50xyY;
cmsXYZ2xyY(&D50xyY, cmsD50_XYZ());
return &D50xyY;
}
// Obtains WhitePoint from Temperature
cmsBool CMSEXPORT cmsWhitePointFromTemp(cmsCIExyY* WhitePoint, cmsFloat64Number TempK)
{
cmsFloat64Number x, y;
cmsFloat64Number T, T2, T3;
// cmsFloat64Number M1, M2;
_cmsAssert(WhitePoint != NULL);
T = TempK;
T2 = T*T; // Square
T3 = T2*T; // Cube
// For correlated color temperature (T) between 4000K and 7000K:
if (T >= 4000. && T <= 7000.)
{
x = -4.6070*(1E9/T3) + 2.9678*(1E6/T2) + 0.09911*(1E3/T) + 0.244063;
}
else
// or for correlated color temperature (T) between 7000K and 25000K:
if (T > 7000.0 && T <= 25000.0)
{
x = -2.0064*(1E9/T3) + 1.9018*(1E6/T2) + 0.24748*(1E3/T) + 0.237040;
}
else {
cmsSignalError(0, cmsERROR_RANGE, "cmsWhitePointFromTemp: invalid temp");
return FALSE;
}
// Obtain y(x)
y = -3.000*(x*x) + 2.870*x - 0.275;
// wave factors (not used, but here for futures extensions)
// M1 = (-1.3515 - 1.7703*x + 5.9114 *y)/(0.0241 + 0.2562*x - 0.7341*y);
// M2 = (0.0300 - 31.4424*x + 30.0717*y)/(0.0241 + 0.2562*x - 0.7341*y);
WhitePoint -> x = x;
WhitePoint -> y = y;
WhitePoint -> Y = 1.0;
return TRUE;
}
typedef struct {
cmsFloat64Number mirek; // temp (in microreciprocal kelvin)
cmsFloat64Number ut; // u coord of intersection w/ blackbody locus
cmsFloat64Number vt; // v coord of intersection w/ blackbody locus
cmsFloat64Number tt; // slope of ISOTEMPERATURE. line
} ISOTEMPERATURE;
static ISOTEMPERATURE isotempdata[] = {
// {Mirek, Ut, Vt, Tt }
{0, 0.18006, 0.26352, -0.24341},
{10, 0.18066, 0.26589, -0.25479},
{20, 0.18133, 0.26846, -0.26876},
{30, 0.18208, 0.27119, -0.28539},
{40, 0.18293, 0.27407, -0.30470},
{50, 0.18388, 0.27709, -0.32675},
{60, 0.18494, 0.28021, -0.35156},
{70, 0.18611, 0.28342, -0.37915},
{80, 0.18740, 0.28668, -0.40955},
{90, 0.18880, 0.28997, -0.44278},
{100, 0.19032, 0.29326, -0.47888},
{125, 0.19462, 0.30141, -0.58204},
{150, 0.19962, 0.30921, -0.70471},
{175, 0.20525, 0.31647, -0.84901},
{200, 0.21142, 0.32312, -1.0182 },
{225, 0.21807, 0.32909, -1.2168 },
{250, 0.22511, 0.33439, -1.4512 },
{275, 0.23247, 0.33904, -1.7298 },
{300, 0.24010, 0.34308, -2.0637 },
{325, 0.24702, 0.34655, -2.4681 },
{350, 0.25591, 0.34951, -2.9641 },
{375, 0.26400, 0.35200, -3.5814 },
{400, 0.27218, 0.35407, -4.3633 },
{425, 0.28039, 0.35577, -5.3762 },
{450, 0.28863, 0.35714, -6.7262 },
{475, 0.29685, 0.35823, -8.5955 },
{500, 0.30505, 0.35907, -11.324 },
{525, 0.31320, 0.35968, -15.628 },
{550, 0.32129, 0.36011, -23.325 },
{575, 0.32931, 0.36038, -40.770 },
{600, 0.33724, 0.36051, -116.45 }
};
#define NISO sizeof(isotempdata)/sizeof(ISOTEMPERATURE)
// Robertson's method
cmsBool CMSEXPORT cmsTempFromWhitePoint(cmsFloat64Number* TempK, const cmsCIExyY* WhitePoint)
{
cmsUInt32Number j;
cmsFloat64Number us,vs;
cmsFloat64Number uj,vj,tj,di,dj,mi,mj;
cmsFloat64Number xs, ys;
_cmsAssert(WhitePoint != NULL);
_cmsAssert(TempK != NULL);
di = mi = 0;
xs = WhitePoint -> x;
ys = WhitePoint -> y;
// convert (x,y) to CIE 1960 (u,WhitePoint)
us = (2*xs) / (-xs + 6*ys + 1.5);
vs = (3*ys) / (-xs + 6*ys + 1.5);
for (j=0; j < NISO; j++) {
uj = isotempdata[j].ut;
vj = isotempdata[j].vt;
tj = isotempdata[j].tt;
mj = isotempdata[j].mirek;
dj = ((vs - vj) - tj * (us - uj)) / sqrt(1.0 + tj * tj);
if ((j != 0) && (di/dj < 0.0)) {
// Found a match
*TempK = 1000000.0 / (mi + (di / (di - dj)) * (mj - mi));
return TRUE;
}
di = dj;
mi = mj;
}
// Not found
return FALSE;
}
// Compute chromatic adaptation matrix using Chad as cone matrix
static
cmsBool ComputeChromaticAdaptation(cmsMAT3* Conversion,
const cmsCIEXYZ* SourceWhitePoint,
const cmsCIEXYZ* DestWhitePoint,
const cmsMAT3* Chad)
{
cmsMAT3 Chad_Inv;
cmsVEC3 ConeSourceXYZ, ConeSourceRGB;
cmsVEC3 ConeDestXYZ, ConeDestRGB;
cmsMAT3 Cone, Tmp;
Tmp = *Chad;
if (!_cmsMAT3inverse(&Tmp, &Chad_Inv)) return FALSE;
_cmsVEC3init(&ConeSourceXYZ, SourceWhitePoint -> X,
SourceWhitePoint -> Y,
SourceWhitePoint -> Z);
_cmsVEC3init(&ConeDestXYZ, DestWhitePoint -> X,
DestWhitePoint -> Y,
DestWhitePoint -> Z);
_cmsMAT3eval(&ConeSourceRGB, Chad, &ConeSourceXYZ);
_cmsMAT3eval(&ConeDestRGB, Chad, &ConeDestXYZ);
// Build matrix
_cmsVEC3init(&Cone.v[0], ConeDestRGB.n[0]/ConeSourceRGB.n[0], 0.0, 0.0);
_cmsVEC3init(&Cone.v[1], 0.0, ConeDestRGB.n[1]/ConeSourceRGB.n[1], 0.0);
_cmsVEC3init(&Cone.v[2], 0.0, 0.0, ConeDestRGB.n[2]/ConeSourceRGB.n[2]);
// Normalize
_cmsMAT3per(&Tmp, &Cone, Chad);
_cmsMAT3per(Conversion, &Chad_Inv, &Tmp);
return TRUE;
}
// Returns the final chrmatic adaptation from illuminant FromIll to Illuminant ToIll
// The cone matrix can be specified in ConeMatrix. If NULL, Bradford is assumed
cmsBool _cmsAdaptationMatrix(cmsMAT3* r, const cmsMAT3* ConeMatrix, const cmsCIEXYZ* FromIll, const cmsCIEXYZ* ToIll)
{
cmsMAT3 LamRigg = {{ // Bradford matrix
{{ 0.8951, 0.2664, -0.1614 }},
{{ -0.7502, 1.7135, 0.0367 }},
{{ 0.0389, -0.0685, 1.0296 }}
}};
if (ConeMatrix == NULL)
ConeMatrix = &LamRigg;
return ComputeChromaticAdaptation(r, FromIll, ToIll, ConeMatrix);
}
// Same as anterior, but assuming D50 destination. White point is given in xyY
static
cmsBool _cmsAdaptMatrixToD50(cmsMAT3* r, const cmsCIExyY* SourceWhitePt)
{
cmsCIEXYZ Dn;
cmsMAT3 Bradford;
cmsMAT3 Tmp;
cmsxyY2XYZ(&Dn, SourceWhitePt);
if (!_cmsAdaptationMatrix(&Bradford, NULL, &Dn, cmsD50_XYZ())) return FALSE;
Tmp = *r;
_cmsMAT3per(r, &Bradford, &Tmp);
return TRUE;
}
// Build a White point, primary chromas transfer matrix from RGB to CIE XYZ
// This is just an approximation, I am not handling all the non-linear
// aspects of the RGB to XYZ process, and assumming that the gamma correction
// has transitive property in the tranformation chain.
//
// the alghoritm:
//
// - First I build the absolute conversion matrix using
// primaries in XYZ. This matrix is next inverted
// - Then I eval the source white point across this matrix
// obtaining the coeficients of the transformation
// - Then, I apply these coeficients to the original matrix
//
cmsBool _cmsBuildRGB2XYZtransferMatrix(cmsMAT3* r, const cmsCIExyY* WhitePt, const cmsCIExyYTRIPLE* Primrs)
{
cmsVEC3 WhitePoint, Coef;
cmsMAT3 Result, Primaries;
cmsFloat64Number xn, yn;
cmsFloat64Number xr, yr;
cmsFloat64Number xg, yg;
cmsFloat64Number xb, yb;
xn = WhitePt -> x;
yn = WhitePt -> y;
xr = Primrs -> Red.x;
yr = Primrs -> Red.y;
xg = Primrs -> Green.x;
yg = Primrs -> Green.y;
xb = Primrs -> Blue.x;
yb = Primrs -> Blue.y;
// Build Primaries matrix
_cmsVEC3init(&Primaries.v[0], xr, xg, xb);
_cmsVEC3init(&Primaries.v[1], yr, yg, yb);
_cmsVEC3init(&Primaries.v[2], (1-xr-yr), (1-xg-yg), (1-xb-yb));
// Result = Primaries ^ (-1) inverse matrix
if (!_cmsMAT3inverse(&Primaries, &Result))
return FALSE;
_cmsVEC3init(&WhitePoint, xn/yn, 1.0, (1.0-xn-yn)/yn);
// Across inverse primaries ...
_cmsMAT3eval(&Coef, &Result, &WhitePoint);
// Give us the Coefs, then I build transformation matrix
_cmsVEC3init(&r -> v[0], Coef.n[VX]*xr, Coef.n[VY]*xg, Coef.n[VZ]*xb);
_cmsVEC3init(&r -> v[1], Coef.n[VX]*yr, Coef.n[VY]*yg, Coef.n[VZ]*yb);
_cmsVEC3init(&r -> v[2], Coef.n[VX]*(1.0-xr-yr), Coef.n[VY]*(1.0-xg-yg), Coef.n[VZ]*(1.0-xb-yb));
return _cmsAdaptMatrixToD50(r, WhitePt);
}
// Adapts a color to a given illuminant. Original color is expected to have
// a SourceWhitePt white point.
cmsBool CMSEXPORT cmsAdaptToIlluminant(cmsCIEXYZ* Result,
const cmsCIEXYZ* SourceWhitePt,
const cmsCIEXYZ* Illuminant,
const cmsCIEXYZ* Value)
{
cmsMAT3 Bradford;
cmsVEC3 In, Out;
_cmsAssert(Result != NULL);
_cmsAssert(SourceWhitePt != NULL);
_cmsAssert(Illuminant != NULL);
_cmsAssert(Value != NULL);
if (!_cmsAdaptationMatrix(&Bradford, NULL, SourceWhitePt, Illuminant)) return FALSE;
_cmsVEC3init(&In, Value -> X, Value -> Y, Value -> Z);
_cmsMAT3eval(&Out, &Bradford, &In);
Result -> X = Out.n[0];
Result -> Y = Out.n[1];
Result -> Z = Out.n[2];
return TRUE;
}
|
47 | ./little-cms/src/cmshalf.c | //---------------------------------------------------------------------------------
//
// Little Color Management System
// Copyright (c) 1998-2012 Marti Maria Saguer
//
// Permission is hereby granted, free of charge, to any person obtaining
// a copy of this software and associated documentation files (the "Software"),
// to deal in the Software without restriction, including without limitation
// the rights to use, copy, modify, merge, publish, distribute, sublicense,
// and/or sell copies of the Software, and to permit persons to whom the Software
// is furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO
// THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
// LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
// OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
// WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
//
//---------------------------------------------------------------------------------
//
//
#include "lcms2_internal.h"
#ifndef CMS_NO_HALF_SUPPORT
// This code is inspired in the paper "Fast Half Float Conversions"
// by Jeroen van der Zijp
static cmsUInt32Number Mantissa[2048] = {
0x00000000, 0x33800000, 0x34000000, 0x34400000, 0x34800000, 0x34a00000,
0x34c00000, 0x34e00000, 0x35000000, 0x35100000, 0x35200000, 0x35300000,
0x35400000, 0x35500000, 0x35600000, 0x35700000, 0x35800000, 0x35880000,
0x35900000, 0x35980000, 0x35a00000, 0x35a80000, 0x35b00000, 0x35b80000,
0x35c00000, 0x35c80000, 0x35d00000, 0x35d80000, 0x35e00000, 0x35e80000,
0x35f00000, 0x35f80000, 0x36000000, 0x36040000, 0x36080000, 0x360c0000,
0x36100000, 0x36140000, 0x36180000, 0x361c0000, 0x36200000, 0x36240000,
0x36280000, 0x362c0000, 0x36300000, 0x36340000, 0x36380000, 0x363c0000,
0x36400000, 0x36440000, 0x36480000, 0x364c0000, 0x36500000, 0x36540000,
0x36580000, 0x365c0000, 0x36600000, 0x36640000, 0x36680000, 0x366c0000,
0x36700000, 0x36740000, 0x36780000, 0x367c0000, 0x36800000, 0x36820000,
0x36840000, 0x36860000, 0x36880000, 0x368a0000, 0x368c0000, 0x368e0000,
0x36900000, 0x36920000, 0x36940000, 0x36960000, 0x36980000, 0x369a0000,
0x369c0000, 0x369e0000, 0x36a00000, 0x36a20000, 0x36a40000, 0x36a60000,
0x36a80000, 0x36aa0000, 0x36ac0000, 0x36ae0000, 0x36b00000, 0x36b20000,
0x36b40000, 0x36b60000, 0x36b80000, 0x36ba0000, 0x36bc0000, 0x36be0000,
0x36c00000, 0x36c20000, 0x36c40000, 0x36c60000, 0x36c80000, 0x36ca0000,
0x36cc0000, 0x36ce0000, 0x36d00000, 0x36d20000, 0x36d40000, 0x36d60000,
0x36d80000, 0x36da0000, 0x36dc0000, 0x36de0000, 0x36e00000, 0x36e20000,
0x36e40000, 0x36e60000, 0x36e80000, 0x36ea0000, 0x36ec0000, 0x36ee0000,
0x36f00000, 0x36f20000, 0x36f40000, 0x36f60000, 0x36f80000, 0x36fa0000,
0x36fc0000, 0x36fe0000, 0x37000000, 0x37010000, 0x37020000, 0x37030000,
0x37040000, 0x37050000, 0x37060000, 0x37070000, 0x37080000, 0x37090000,
0x370a0000, 0x370b0000, 0x370c0000, 0x370d0000, 0x370e0000, 0x370f0000,
0x37100000, 0x37110000, 0x37120000, 0x37130000, 0x37140000, 0x37150000,
0x37160000, 0x37170000, 0x37180000, 0x37190000, 0x371a0000, 0x371b0000,
0x371c0000, 0x371d0000, 0x371e0000, 0x371f0000, 0x37200000, 0x37210000,
0x37220000, 0x37230000, 0x37240000, 0x37250000, 0x37260000, 0x37270000,
0x37280000, 0x37290000, 0x372a0000, 0x372b0000, 0x372c0000, 0x372d0000,
0x372e0000, 0x372f0000, 0x37300000, 0x37310000, 0x37320000, 0x37330000,
0x37340000, 0x37350000, 0x37360000, 0x37370000, 0x37380000, 0x37390000,
0x373a0000, 0x373b0000, 0x373c0000, 0x373d0000, 0x373e0000, 0x373f0000,
0x37400000, 0x37410000, 0x37420000, 0x37430000, 0x37440000, 0x37450000,
0x37460000, 0x37470000, 0x37480000, 0x37490000, 0x374a0000, 0x374b0000,
0x374c0000, 0x374d0000, 0x374e0000, 0x374f0000, 0x37500000, 0x37510000,
0x37520000, 0x37530000, 0x37540000, 0x37550000, 0x37560000, 0x37570000,
0x37580000, 0x37590000, 0x375a0000, 0x375b0000, 0x375c0000, 0x375d0000,
0x375e0000, 0x375f0000, 0x37600000, 0x37610000, 0x37620000, 0x37630000,
0x37640000, 0x37650000, 0x37660000, 0x37670000, 0x37680000, 0x37690000,
0x376a0000, 0x376b0000, 0x376c0000, 0x376d0000, 0x376e0000, 0x376f0000,
0x37700000, 0x37710000, 0x37720000, 0x37730000, 0x37740000, 0x37750000,
0x37760000, 0x37770000, 0x37780000, 0x37790000, 0x377a0000, 0x377b0000,
0x377c0000, 0x377d0000, 0x377e0000, 0x377f0000, 0x37800000, 0x37808000,
0x37810000, 0x37818000, 0x37820000, 0x37828000, 0x37830000, 0x37838000,
0x37840000, 0x37848000, 0x37850000, 0x37858000, 0x37860000, 0x37868000,
0x37870000, 0x37878000, 0x37880000, 0x37888000, 0x37890000, 0x37898000,
0x378a0000, 0x378a8000, 0x378b0000, 0x378b8000, 0x378c0000, 0x378c8000,
0x378d0000, 0x378d8000, 0x378e0000, 0x378e8000, 0x378f0000, 0x378f8000,
0x37900000, 0x37908000, 0x37910000, 0x37918000, 0x37920000, 0x37928000,
0x37930000, 0x37938000, 0x37940000, 0x37948000, 0x37950000, 0x37958000,
0x37960000, 0x37968000, 0x37970000, 0x37978000, 0x37980000, 0x37988000,
0x37990000, 0x37998000, 0x379a0000, 0x379a8000, 0x379b0000, 0x379b8000,
0x379c0000, 0x379c8000, 0x379d0000, 0x379d8000, 0x379e0000, 0x379e8000,
0x379f0000, 0x379f8000, 0x37a00000, 0x37a08000, 0x37a10000, 0x37a18000,
0x37a20000, 0x37a28000, 0x37a30000, 0x37a38000, 0x37a40000, 0x37a48000,
0x37a50000, 0x37a58000, 0x37a60000, 0x37a68000, 0x37a70000, 0x37a78000,
0x37a80000, 0x37a88000, 0x37a90000, 0x37a98000, 0x37aa0000, 0x37aa8000,
0x37ab0000, 0x37ab8000, 0x37ac0000, 0x37ac8000, 0x37ad0000, 0x37ad8000,
0x37ae0000, 0x37ae8000, 0x37af0000, 0x37af8000, 0x37b00000, 0x37b08000,
0x37b10000, 0x37b18000, 0x37b20000, 0x37b28000, 0x37b30000, 0x37b38000,
0x37b40000, 0x37b48000, 0x37b50000, 0x37b58000, 0x37b60000, 0x37b68000,
0x37b70000, 0x37b78000, 0x37b80000, 0x37b88000, 0x37b90000, 0x37b98000,
0x37ba0000, 0x37ba8000, 0x37bb0000, 0x37bb8000, 0x37bc0000, 0x37bc8000,
0x37bd0000, 0x37bd8000, 0x37be0000, 0x37be8000, 0x37bf0000, 0x37bf8000,
0x37c00000, 0x37c08000, 0x37c10000, 0x37c18000, 0x37c20000, 0x37c28000,
0x37c30000, 0x37c38000, 0x37c40000, 0x37c48000, 0x37c50000, 0x37c58000,
0x37c60000, 0x37c68000, 0x37c70000, 0x37c78000, 0x37c80000, 0x37c88000,
0x37c90000, 0x37c98000, 0x37ca0000, 0x37ca8000, 0x37cb0000, 0x37cb8000,
0x37cc0000, 0x37cc8000, 0x37cd0000, 0x37cd8000, 0x37ce0000, 0x37ce8000,
0x37cf0000, 0x37cf8000, 0x37d00000, 0x37d08000, 0x37d10000, 0x37d18000,
0x37d20000, 0x37d28000, 0x37d30000, 0x37d38000, 0x37d40000, 0x37d48000,
0x37d50000, 0x37d58000, 0x37d60000, 0x37d68000, 0x37d70000, 0x37d78000,
0x37d80000, 0x37d88000, 0x37d90000, 0x37d98000, 0x37da0000, 0x37da8000,
0x37db0000, 0x37db8000, 0x37dc0000, 0x37dc8000, 0x37dd0000, 0x37dd8000,
0x37de0000, 0x37de8000, 0x37df0000, 0x37df8000, 0x37e00000, 0x37e08000,
0x37e10000, 0x37e18000, 0x37e20000, 0x37e28000, 0x37e30000, 0x37e38000,
0x37e40000, 0x37e48000, 0x37e50000, 0x37e58000, 0x37e60000, 0x37e68000,
0x37e70000, 0x37e78000, 0x37e80000, 0x37e88000, 0x37e90000, 0x37e98000,
0x37ea0000, 0x37ea8000, 0x37eb0000, 0x37eb8000, 0x37ec0000, 0x37ec8000,
0x37ed0000, 0x37ed8000, 0x37ee0000, 0x37ee8000, 0x37ef0000, 0x37ef8000,
0x37f00000, 0x37f08000, 0x37f10000, 0x37f18000, 0x37f20000, 0x37f28000,
0x37f30000, 0x37f38000, 0x37f40000, 0x37f48000, 0x37f50000, 0x37f58000,
0x37f60000, 0x37f68000, 0x37f70000, 0x37f78000, 0x37f80000, 0x37f88000,
0x37f90000, 0x37f98000, 0x37fa0000, 0x37fa8000, 0x37fb0000, 0x37fb8000,
0x37fc0000, 0x37fc8000, 0x37fd0000, 0x37fd8000, 0x37fe0000, 0x37fe8000,
0x37ff0000, 0x37ff8000, 0x38000000, 0x38004000, 0x38008000, 0x3800c000,
0x38010000, 0x38014000, 0x38018000, 0x3801c000, 0x38020000, 0x38024000,
0x38028000, 0x3802c000, 0x38030000, 0x38034000, 0x38038000, 0x3803c000,
0x38040000, 0x38044000, 0x38048000, 0x3804c000, 0x38050000, 0x38054000,
0x38058000, 0x3805c000, 0x38060000, 0x38064000, 0x38068000, 0x3806c000,
0x38070000, 0x38074000, 0x38078000, 0x3807c000, 0x38080000, 0x38084000,
0x38088000, 0x3808c000, 0x38090000, 0x38094000, 0x38098000, 0x3809c000,
0x380a0000, 0x380a4000, 0x380a8000, 0x380ac000, 0x380b0000, 0x380b4000,
0x380b8000, 0x380bc000, 0x380c0000, 0x380c4000, 0x380c8000, 0x380cc000,
0x380d0000, 0x380d4000, 0x380d8000, 0x380dc000, 0x380e0000, 0x380e4000,
0x380e8000, 0x380ec000, 0x380f0000, 0x380f4000, 0x380f8000, 0x380fc000,
0x38100000, 0x38104000, 0x38108000, 0x3810c000, 0x38110000, 0x38114000,
0x38118000, 0x3811c000, 0x38120000, 0x38124000, 0x38128000, 0x3812c000,
0x38130000, 0x38134000, 0x38138000, 0x3813c000, 0x38140000, 0x38144000,
0x38148000, 0x3814c000, 0x38150000, 0x38154000, 0x38158000, 0x3815c000,
0x38160000, 0x38164000, 0x38168000, 0x3816c000, 0x38170000, 0x38174000,
0x38178000, 0x3817c000, 0x38180000, 0x38184000, 0x38188000, 0x3818c000,
0x38190000, 0x38194000, 0x38198000, 0x3819c000, 0x381a0000, 0x381a4000,
0x381a8000, 0x381ac000, 0x381b0000, 0x381b4000, 0x381b8000, 0x381bc000,
0x381c0000, 0x381c4000, 0x381c8000, 0x381cc000, 0x381d0000, 0x381d4000,
0x381d8000, 0x381dc000, 0x381e0000, 0x381e4000, 0x381e8000, 0x381ec000,
0x381f0000, 0x381f4000, 0x381f8000, 0x381fc000, 0x38200000, 0x38204000,
0x38208000, 0x3820c000, 0x38210000, 0x38214000, 0x38218000, 0x3821c000,
0x38220000, 0x38224000, 0x38228000, 0x3822c000, 0x38230000, 0x38234000,
0x38238000, 0x3823c000, 0x38240000, 0x38244000, 0x38248000, 0x3824c000,
0x38250000, 0x38254000, 0x38258000, 0x3825c000, 0x38260000, 0x38264000,
0x38268000, 0x3826c000, 0x38270000, 0x38274000, 0x38278000, 0x3827c000,
0x38280000, 0x38284000, 0x38288000, 0x3828c000, 0x38290000, 0x38294000,
0x38298000, 0x3829c000, 0x382a0000, 0x382a4000, 0x382a8000, 0x382ac000,
0x382b0000, 0x382b4000, 0x382b8000, 0x382bc000, 0x382c0000, 0x382c4000,
0x382c8000, 0x382cc000, 0x382d0000, 0x382d4000, 0x382d8000, 0x382dc000,
0x382e0000, 0x382e4000, 0x382e8000, 0x382ec000, 0x382f0000, 0x382f4000,
0x382f8000, 0x382fc000, 0x38300000, 0x38304000, 0x38308000, 0x3830c000,
0x38310000, 0x38314000, 0x38318000, 0x3831c000, 0x38320000, 0x38324000,
0x38328000, 0x3832c000, 0x38330000, 0x38334000, 0x38338000, 0x3833c000,
0x38340000, 0x38344000, 0x38348000, 0x3834c000, 0x38350000, 0x38354000,
0x38358000, 0x3835c000, 0x38360000, 0x38364000, 0x38368000, 0x3836c000,
0x38370000, 0x38374000, 0x38378000, 0x3837c000, 0x38380000, 0x38384000,
0x38388000, 0x3838c000, 0x38390000, 0x38394000, 0x38398000, 0x3839c000,
0x383a0000, 0x383a4000, 0x383a8000, 0x383ac000, 0x383b0000, 0x383b4000,
0x383b8000, 0x383bc000, 0x383c0000, 0x383c4000, 0x383c8000, 0x383cc000,
0x383d0000, 0x383d4000, 0x383d8000, 0x383dc000, 0x383e0000, 0x383e4000,
0x383e8000, 0x383ec000, 0x383f0000, 0x383f4000, 0x383f8000, 0x383fc000,
0x38400000, 0x38404000, 0x38408000, 0x3840c000, 0x38410000, 0x38414000,
0x38418000, 0x3841c000, 0x38420000, 0x38424000, 0x38428000, 0x3842c000,
0x38430000, 0x38434000, 0x38438000, 0x3843c000, 0x38440000, 0x38444000,
0x38448000, 0x3844c000, 0x38450000, 0x38454000, 0x38458000, 0x3845c000,
0x38460000, 0x38464000, 0x38468000, 0x3846c000, 0x38470000, 0x38474000,
0x38478000, 0x3847c000, 0x38480000, 0x38484000, 0x38488000, 0x3848c000,
0x38490000, 0x38494000, 0x38498000, 0x3849c000, 0x384a0000, 0x384a4000,
0x384a8000, 0x384ac000, 0x384b0000, 0x384b4000, 0x384b8000, 0x384bc000,
0x384c0000, 0x384c4000, 0x384c8000, 0x384cc000, 0x384d0000, 0x384d4000,
0x384d8000, 0x384dc000, 0x384e0000, 0x384e4000, 0x384e8000, 0x384ec000,
0x384f0000, 0x384f4000, 0x384f8000, 0x384fc000, 0x38500000, 0x38504000,
0x38508000, 0x3850c000, 0x38510000, 0x38514000, 0x38518000, 0x3851c000,
0x38520000, 0x38524000, 0x38528000, 0x3852c000, 0x38530000, 0x38534000,
0x38538000, 0x3853c000, 0x38540000, 0x38544000, 0x38548000, 0x3854c000,
0x38550000, 0x38554000, 0x38558000, 0x3855c000, 0x38560000, 0x38564000,
0x38568000, 0x3856c000, 0x38570000, 0x38574000, 0x38578000, 0x3857c000,
0x38580000, 0x38584000, 0x38588000, 0x3858c000, 0x38590000, 0x38594000,
0x38598000, 0x3859c000, 0x385a0000, 0x385a4000, 0x385a8000, 0x385ac000,
0x385b0000, 0x385b4000, 0x385b8000, 0x385bc000, 0x385c0000, 0x385c4000,
0x385c8000, 0x385cc000, 0x385d0000, 0x385d4000, 0x385d8000, 0x385dc000,
0x385e0000, 0x385e4000, 0x385e8000, 0x385ec000, 0x385f0000, 0x385f4000,
0x385f8000, 0x385fc000, 0x38600000, 0x38604000, 0x38608000, 0x3860c000,
0x38610000, 0x38614000, 0x38618000, 0x3861c000, 0x38620000, 0x38624000,
0x38628000, 0x3862c000, 0x38630000, 0x38634000, 0x38638000, 0x3863c000,
0x38640000, 0x38644000, 0x38648000, 0x3864c000, 0x38650000, 0x38654000,
0x38658000, 0x3865c000, 0x38660000, 0x38664000, 0x38668000, 0x3866c000,
0x38670000, 0x38674000, 0x38678000, 0x3867c000, 0x38680000, 0x38684000,
0x38688000, 0x3868c000, 0x38690000, 0x38694000, 0x38698000, 0x3869c000,
0x386a0000, 0x386a4000, 0x386a8000, 0x386ac000, 0x386b0000, 0x386b4000,
0x386b8000, 0x386bc000, 0x386c0000, 0x386c4000, 0x386c8000, 0x386cc000,
0x386d0000, 0x386d4000, 0x386d8000, 0x386dc000, 0x386e0000, 0x386e4000,
0x386e8000, 0x386ec000, 0x386f0000, 0x386f4000, 0x386f8000, 0x386fc000,
0x38700000, 0x38704000, 0x38708000, 0x3870c000, 0x38710000, 0x38714000,
0x38718000, 0x3871c000, 0x38720000, 0x38724000, 0x38728000, 0x3872c000,
0x38730000, 0x38734000, 0x38738000, 0x3873c000, 0x38740000, 0x38744000,
0x38748000, 0x3874c000, 0x38750000, 0x38754000, 0x38758000, 0x3875c000,
0x38760000, 0x38764000, 0x38768000, 0x3876c000, 0x38770000, 0x38774000,
0x38778000, 0x3877c000, 0x38780000, 0x38784000, 0x38788000, 0x3878c000,
0x38790000, 0x38794000, 0x38798000, 0x3879c000, 0x387a0000, 0x387a4000,
0x387a8000, 0x387ac000, 0x387b0000, 0x387b4000, 0x387b8000, 0x387bc000,
0x387c0000, 0x387c4000, 0x387c8000, 0x387cc000, 0x387d0000, 0x387d4000,
0x387d8000, 0x387dc000, 0x387e0000, 0x387e4000, 0x387e8000, 0x387ec000,
0x387f0000, 0x387f4000, 0x387f8000, 0x387fc000, 0x38000000, 0x38002000,
0x38004000, 0x38006000, 0x38008000, 0x3800a000, 0x3800c000, 0x3800e000,
0x38010000, 0x38012000, 0x38014000, 0x38016000, 0x38018000, 0x3801a000,
0x3801c000, 0x3801e000, 0x38020000, 0x38022000, 0x38024000, 0x38026000,
0x38028000, 0x3802a000, 0x3802c000, 0x3802e000, 0x38030000, 0x38032000,
0x38034000, 0x38036000, 0x38038000, 0x3803a000, 0x3803c000, 0x3803e000,
0x38040000, 0x38042000, 0x38044000, 0x38046000, 0x38048000, 0x3804a000,
0x3804c000, 0x3804e000, 0x38050000, 0x38052000, 0x38054000, 0x38056000,
0x38058000, 0x3805a000, 0x3805c000, 0x3805e000, 0x38060000, 0x38062000,
0x38064000, 0x38066000, 0x38068000, 0x3806a000, 0x3806c000, 0x3806e000,
0x38070000, 0x38072000, 0x38074000, 0x38076000, 0x38078000, 0x3807a000,
0x3807c000, 0x3807e000, 0x38080000, 0x38082000, 0x38084000, 0x38086000,
0x38088000, 0x3808a000, 0x3808c000, 0x3808e000, 0x38090000, 0x38092000,
0x38094000, 0x38096000, 0x38098000, 0x3809a000, 0x3809c000, 0x3809e000,
0x380a0000, 0x380a2000, 0x380a4000, 0x380a6000, 0x380a8000, 0x380aa000,
0x380ac000, 0x380ae000, 0x380b0000, 0x380b2000, 0x380b4000, 0x380b6000,
0x380b8000, 0x380ba000, 0x380bc000, 0x380be000, 0x380c0000, 0x380c2000,
0x380c4000, 0x380c6000, 0x380c8000, 0x380ca000, 0x380cc000, 0x380ce000,
0x380d0000, 0x380d2000, 0x380d4000, 0x380d6000, 0x380d8000, 0x380da000,
0x380dc000, 0x380de000, 0x380e0000, 0x380e2000, 0x380e4000, 0x380e6000,
0x380e8000, 0x380ea000, 0x380ec000, 0x380ee000, 0x380f0000, 0x380f2000,
0x380f4000, 0x380f6000, 0x380f8000, 0x380fa000, 0x380fc000, 0x380fe000,
0x38100000, 0x38102000, 0x38104000, 0x38106000, 0x38108000, 0x3810a000,
0x3810c000, 0x3810e000, 0x38110000, 0x38112000, 0x38114000, 0x38116000,
0x38118000, 0x3811a000, 0x3811c000, 0x3811e000, 0x38120000, 0x38122000,
0x38124000, 0x38126000, 0x38128000, 0x3812a000, 0x3812c000, 0x3812e000,
0x38130000, 0x38132000, 0x38134000, 0x38136000, 0x38138000, 0x3813a000,
0x3813c000, 0x3813e000, 0x38140000, 0x38142000, 0x38144000, 0x38146000,
0x38148000, 0x3814a000, 0x3814c000, 0x3814e000, 0x38150000, 0x38152000,
0x38154000, 0x38156000, 0x38158000, 0x3815a000, 0x3815c000, 0x3815e000,
0x38160000, 0x38162000, 0x38164000, 0x38166000, 0x38168000, 0x3816a000,
0x3816c000, 0x3816e000, 0x38170000, 0x38172000, 0x38174000, 0x38176000,
0x38178000, 0x3817a000, 0x3817c000, 0x3817e000, 0x38180000, 0x38182000,
0x38184000, 0x38186000, 0x38188000, 0x3818a000, 0x3818c000, 0x3818e000,
0x38190000, 0x38192000, 0x38194000, 0x38196000, 0x38198000, 0x3819a000,
0x3819c000, 0x3819e000, 0x381a0000, 0x381a2000, 0x381a4000, 0x381a6000,
0x381a8000, 0x381aa000, 0x381ac000, 0x381ae000, 0x381b0000, 0x381b2000,
0x381b4000, 0x381b6000, 0x381b8000, 0x381ba000, 0x381bc000, 0x381be000,
0x381c0000, 0x381c2000, 0x381c4000, 0x381c6000, 0x381c8000, 0x381ca000,
0x381cc000, 0x381ce000, 0x381d0000, 0x381d2000, 0x381d4000, 0x381d6000,
0x381d8000, 0x381da000, 0x381dc000, 0x381de000, 0x381e0000, 0x381e2000,
0x381e4000, 0x381e6000, 0x381e8000, 0x381ea000, 0x381ec000, 0x381ee000,
0x381f0000, 0x381f2000, 0x381f4000, 0x381f6000, 0x381f8000, 0x381fa000,
0x381fc000, 0x381fe000, 0x38200000, 0x38202000, 0x38204000, 0x38206000,
0x38208000, 0x3820a000, 0x3820c000, 0x3820e000, 0x38210000, 0x38212000,
0x38214000, 0x38216000, 0x38218000, 0x3821a000, 0x3821c000, 0x3821e000,
0x38220000, 0x38222000, 0x38224000, 0x38226000, 0x38228000, 0x3822a000,
0x3822c000, 0x3822e000, 0x38230000, 0x38232000, 0x38234000, 0x38236000,
0x38238000, 0x3823a000, 0x3823c000, 0x3823e000, 0x38240000, 0x38242000,
0x38244000, 0x38246000, 0x38248000, 0x3824a000, 0x3824c000, 0x3824e000,
0x38250000, 0x38252000, 0x38254000, 0x38256000, 0x38258000, 0x3825a000,
0x3825c000, 0x3825e000, 0x38260000, 0x38262000, 0x38264000, 0x38266000,
0x38268000, 0x3826a000, 0x3826c000, 0x3826e000, 0x38270000, 0x38272000,
0x38274000, 0x38276000, 0x38278000, 0x3827a000, 0x3827c000, 0x3827e000,
0x38280000, 0x38282000, 0x38284000, 0x38286000, 0x38288000, 0x3828a000,
0x3828c000, 0x3828e000, 0x38290000, 0x38292000, 0x38294000, 0x38296000,
0x38298000, 0x3829a000, 0x3829c000, 0x3829e000, 0x382a0000, 0x382a2000,
0x382a4000, 0x382a6000, 0x382a8000, 0x382aa000, 0x382ac000, 0x382ae000,
0x382b0000, 0x382b2000, 0x382b4000, 0x382b6000, 0x382b8000, 0x382ba000,
0x382bc000, 0x382be000, 0x382c0000, 0x382c2000, 0x382c4000, 0x382c6000,
0x382c8000, 0x382ca000, 0x382cc000, 0x382ce000, 0x382d0000, 0x382d2000,
0x382d4000, 0x382d6000, 0x382d8000, 0x382da000, 0x382dc000, 0x382de000,
0x382e0000, 0x382e2000, 0x382e4000, 0x382e6000, 0x382e8000, 0x382ea000,
0x382ec000, 0x382ee000, 0x382f0000, 0x382f2000, 0x382f4000, 0x382f6000,
0x382f8000, 0x382fa000, 0x382fc000, 0x382fe000, 0x38300000, 0x38302000,
0x38304000, 0x38306000, 0x38308000, 0x3830a000, 0x3830c000, 0x3830e000,
0x38310000, 0x38312000, 0x38314000, 0x38316000, 0x38318000, 0x3831a000,
0x3831c000, 0x3831e000, 0x38320000, 0x38322000, 0x38324000, 0x38326000,
0x38328000, 0x3832a000, 0x3832c000, 0x3832e000, 0x38330000, 0x38332000,
0x38334000, 0x38336000, 0x38338000, 0x3833a000, 0x3833c000, 0x3833e000,
0x38340000, 0x38342000, 0x38344000, 0x38346000, 0x38348000, 0x3834a000,
0x3834c000, 0x3834e000, 0x38350000, 0x38352000, 0x38354000, 0x38356000,
0x38358000, 0x3835a000, 0x3835c000, 0x3835e000, 0x38360000, 0x38362000,
0x38364000, 0x38366000, 0x38368000, 0x3836a000, 0x3836c000, 0x3836e000,
0x38370000, 0x38372000, 0x38374000, 0x38376000, 0x38378000, 0x3837a000,
0x3837c000, 0x3837e000, 0x38380000, 0x38382000, 0x38384000, 0x38386000,
0x38388000, 0x3838a000, 0x3838c000, 0x3838e000, 0x38390000, 0x38392000,
0x38394000, 0x38396000, 0x38398000, 0x3839a000, 0x3839c000, 0x3839e000,
0x383a0000, 0x383a2000, 0x383a4000, 0x383a6000, 0x383a8000, 0x383aa000,
0x383ac000, 0x383ae000, 0x383b0000, 0x383b2000, 0x383b4000, 0x383b6000,
0x383b8000, 0x383ba000, 0x383bc000, 0x383be000, 0x383c0000, 0x383c2000,
0x383c4000, 0x383c6000, 0x383c8000, 0x383ca000, 0x383cc000, 0x383ce000,
0x383d0000, 0x383d2000, 0x383d4000, 0x383d6000, 0x383d8000, 0x383da000,
0x383dc000, 0x383de000, 0x383e0000, 0x383e2000, 0x383e4000, 0x383e6000,
0x383e8000, 0x383ea000, 0x383ec000, 0x383ee000, 0x383f0000, 0x383f2000,
0x383f4000, 0x383f6000, 0x383f8000, 0x383fa000, 0x383fc000, 0x383fe000,
0x38400000, 0x38402000, 0x38404000, 0x38406000, 0x38408000, 0x3840a000,
0x3840c000, 0x3840e000, 0x38410000, 0x38412000, 0x38414000, 0x38416000,
0x38418000, 0x3841a000, 0x3841c000, 0x3841e000, 0x38420000, 0x38422000,
0x38424000, 0x38426000, 0x38428000, 0x3842a000, 0x3842c000, 0x3842e000,
0x38430000, 0x38432000, 0x38434000, 0x38436000, 0x38438000, 0x3843a000,
0x3843c000, 0x3843e000, 0x38440000, 0x38442000, 0x38444000, 0x38446000,
0x38448000, 0x3844a000, 0x3844c000, 0x3844e000, 0x38450000, 0x38452000,
0x38454000, 0x38456000, 0x38458000, 0x3845a000, 0x3845c000, 0x3845e000,
0x38460000, 0x38462000, 0x38464000, 0x38466000, 0x38468000, 0x3846a000,
0x3846c000, 0x3846e000, 0x38470000, 0x38472000, 0x38474000, 0x38476000,
0x38478000, 0x3847a000, 0x3847c000, 0x3847e000, 0x38480000, 0x38482000,
0x38484000, 0x38486000, 0x38488000, 0x3848a000, 0x3848c000, 0x3848e000,
0x38490000, 0x38492000, 0x38494000, 0x38496000, 0x38498000, 0x3849a000,
0x3849c000, 0x3849e000, 0x384a0000, 0x384a2000, 0x384a4000, 0x384a6000,
0x384a8000, 0x384aa000, 0x384ac000, 0x384ae000, 0x384b0000, 0x384b2000,
0x384b4000, 0x384b6000, 0x384b8000, 0x384ba000, 0x384bc000, 0x384be000,
0x384c0000, 0x384c2000, 0x384c4000, 0x384c6000, 0x384c8000, 0x384ca000,
0x384cc000, 0x384ce000, 0x384d0000, 0x384d2000, 0x384d4000, 0x384d6000,
0x384d8000, 0x384da000, 0x384dc000, 0x384de000, 0x384e0000, 0x384e2000,
0x384e4000, 0x384e6000, 0x384e8000, 0x384ea000, 0x384ec000, 0x384ee000,
0x384f0000, 0x384f2000, 0x384f4000, 0x384f6000, 0x384f8000, 0x384fa000,
0x384fc000, 0x384fe000, 0x38500000, 0x38502000, 0x38504000, 0x38506000,
0x38508000, 0x3850a000, 0x3850c000, 0x3850e000, 0x38510000, 0x38512000,
0x38514000, 0x38516000, 0x38518000, 0x3851a000, 0x3851c000, 0x3851e000,
0x38520000, 0x38522000, 0x38524000, 0x38526000, 0x38528000, 0x3852a000,
0x3852c000, 0x3852e000, 0x38530000, 0x38532000, 0x38534000, 0x38536000,
0x38538000, 0x3853a000, 0x3853c000, 0x3853e000, 0x38540000, 0x38542000,
0x38544000, 0x38546000, 0x38548000, 0x3854a000, 0x3854c000, 0x3854e000,
0x38550000, 0x38552000, 0x38554000, 0x38556000, 0x38558000, 0x3855a000,
0x3855c000, 0x3855e000, 0x38560000, 0x38562000, 0x38564000, 0x38566000,
0x38568000, 0x3856a000, 0x3856c000, 0x3856e000, 0x38570000, 0x38572000,
0x38574000, 0x38576000, 0x38578000, 0x3857a000, 0x3857c000, 0x3857e000,
0x38580000, 0x38582000, 0x38584000, 0x38586000, 0x38588000, 0x3858a000,
0x3858c000, 0x3858e000, 0x38590000, 0x38592000, 0x38594000, 0x38596000,
0x38598000, 0x3859a000, 0x3859c000, 0x3859e000, 0x385a0000, 0x385a2000,
0x385a4000, 0x385a6000, 0x385a8000, 0x385aa000, 0x385ac000, 0x385ae000,
0x385b0000, 0x385b2000, 0x385b4000, 0x385b6000, 0x385b8000, 0x385ba000,
0x385bc000, 0x385be000, 0x385c0000, 0x385c2000, 0x385c4000, 0x385c6000,
0x385c8000, 0x385ca000, 0x385cc000, 0x385ce000, 0x385d0000, 0x385d2000,
0x385d4000, 0x385d6000, 0x385d8000, 0x385da000, 0x385dc000, 0x385de000,
0x385e0000, 0x385e2000, 0x385e4000, 0x385e6000, 0x385e8000, 0x385ea000,
0x385ec000, 0x385ee000, 0x385f0000, 0x385f2000, 0x385f4000, 0x385f6000,
0x385f8000, 0x385fa000, 0x385fc000, 0x385fe000, 0x38600000, 0x38602000,
0x38604000, 0x38606000, 0x38608000, 0x3860a000, 0x3860c000, 0x3860e000,
0x38610000, 0x38612000, 0x38614000, 0x38616000, 0x38618000, 0x3861a000,
0x3861c000, 0x3861e000, 0x38620000, 0x38622000, 0x38624000, 0x38626000,
0x38628000, 0x3862a000, 0x3862c000, 0x3862e000, 0x38630000, 0x38632000,
0x38634000, 0x38636000, 0x38638000, 0x3863a000, 0x3863c000, 0x3863e000,
0x38640000, 0x38642000, 0x38644000, 0x38646000, 0x38648000, 0x3864a000,
0x3864c000, 0x3864e000, 0x38650000, 0x38652000, 0x38654000, 0x38656000,
0x38658000, 0x3865a000, 0x3865c000, 0x3865e000, 0x38660000, 0x38662000,
0x38664000, 0x38666000, 0x38668000, 0x3866a000, 0x3866c000, 0x3866e000,
0x38670000, 0x38672000, 0x38674000, 0x38676000, 0x38678000, 0x3867a000,
0x3867c000, 0x3867e000, 0x38680000, 0x38682000, 0x38684000, 0x38686000,
0x38688000, 0x3868a000, 0x3868c000, 0x3868e000, 0x38690000, 0x38692000,
0x38694000, 0x38696000, 0x38698000, 0x3869a000, 0x3869c000, 0x3869e000,
0x386a0000, 0x386a2000, 0x386a4000, 0x386a6000, 0x386a8000, 0x386aa000,
0x386ac000, 0x386ae000, 0x386b0000, 0x386b2000, 0x386b4000, 0x386b6000,
0x386b8000, 0x386ba000, 0x386bc000, 0x386be000, 0x386c0000, 0x386c2000,
0x386c4000, 0x386c6000, 0x386c8000, 0x386ca000, 0x386cc000, 0x386ce000,
0x386d0000, 0x386d2000, 0x386d4000, 0x386d6000, 0x386d8000, 0x386da000,
0x386dc000, 0x386de000, 0x386e0000, 0x386e2000, 0x386e4000, 0x386e6000,
0x386e8000, 0x386ea000, 0x386ec000, 0x386ee000, 0x386f0000, 0x386f2000,
0x386f4000, 0x386f6000, 0x386f8000, 0x386fa000, 0x386fc000, 0x386fe000,
0x38700000, 0x38702000, 0x38704000, 0x38706000, 0x38708000, 0x3870a000,
0x3870c000, 0x3870e000, 0x38710000, 0x38712000, 0x38714000, 0x38716000,
0x38718000, 0x3871a000, 0x3871c000, 0x3871e000, 0x38720000, 0x38722000,
0x38724000, 0x38726000, 0x38728000, 0x3872a000, 0x3872c000, 0x3872e000,
0x38730000, 0x38732000, 0x38734000, 0x38736000, 0x38738000, 0x3873a000,
0x3873c000, 0x3873e000, 0x38740000, 0x38742000, 0x38744000, 0x38746000,
0x38748000, 0x3874a000, 0x3874c000, 0x3874e000, 0x38750000, 0x38752000,
0x38754000, 0x38756000, 0x38758000, 0x3875a000, 0x3875c000, 0x3875e000,
0x38760000, 0x38762000, 0x38764000, 0x38766000, 0x38768000, 0x3876a000,
0x3876c000, 0x3876e000, 0x38770000, 0x38772000, 0x38774000, 0x38776000,
0x38778000, 0x3877a000, 0x3877c000, 0x3877e000, 0x38780000, 0x38782000,
0x38784000, 0x38786000, 0x38788000, 0x3878a000, 0x3878c000, 0x3878e000,
0x38790000, 0x38792000, 0x38794000, 0x38796000, 0x38798000, 0x3879a000,
0x3879c000, 0x3879e000, 0x387a0000, 0x387a2000, 0x387a4000, 0x387a6000,
0x387a8000, 0x387aa000, 0x387ac000, 0x387ae000, 0x387b0000, 0x387b2000,
0x387b4000, 0x387b6000, 0x387b8000, 0x387ba000, 0x387bc000, 0x387be000,
0x387c0000, 0x387c2000, 0x387c4000, 0x387c6000, 0x387c8000, 0x387ca000,
0x387cc000, 0x387ce000, 0x387d0000, 0x387d2000, 0x387d4000, 0x387d6000,
0x387d8000, 0x387da000, 0x387dc000, 0x387de000, 0x387e0000, 0x387e2000,
0x387e4000, 0x387e6000, 0x387e8000, 0x387ea000, 0x387ec000, 0x387ee000,
0x387f0000, 0x387f2000, 0x387f4000, 0x387f6000, 0x387f8000, 0x387fa000,
0x387fc000, 0x387fe000
};
static cmsUInt16Number Offset[64] = {
0x0000, 0x0400, 0x0400, 0x0400, 0x0400, 0x0400,
0x0400, 0x0400, 0x0400, 0x0400, 0x0400, 0x0400,
0x0400, 0x0400, 0x0400, 0x0400, 0x0400, 0x0400,
0x0400, 0x0400, 0x0400, 0x0400, 0x0400, 0x0400,
0x0400, 0x0400, 0x0400, 0x0400, 0x0400, 0x0400,
0x0400, 0x0400, 0x0000, 0x0400, 0x0400, 0x0400,
0x0400, 0x0400, 0x0400, 0x0400, 0x0400, 0x0400,
0x0400, 0x0400, 0x0400, 0x0400, 0x0400, 0x0400,
0x0400, 0x0400, 0x0400, 0x0400, 0x0400, 0x0400,
0x0400, 0x0400, 0x0400, 0x0400, 0x0400, 0x0400,
0x0400, 0x0400, 0x0400, 0x0400
};
static cmsUInt32Number Exponent[64] = {
0x00000000, 0x00800000, 0x01000000, 0x01800000, 0x02000000, 0x02800000,
0x03000000, 0x03800000, 0x04000000, 0x04800000, 0x05000000, 0x05800000,
0x06000000, 0x06800000, 0x07000000, 0x07800000, 0x08000000, 0x08800000,
0x09000000, 0x09800000, 0x0a000000, 0x0a800000, 0x0b000000, 0x0b800000,
0x0c000000, 0x0c800000, 0x0d000000, 0x0d800000, 0x0e000000, 0x0e800000,
0x0f000000, 0x47800000, 0x80000000, 0x80800000, 0x81000000, 0x81800000,
0x82000000, 0x82800000, 0x83000000, 0x83800000, 0x84000000, 0x84800000,
0x85000000, 0x85800000, 0x86000000, 0x86800000, 0x87000000, 0x87800000,
0x88000000, 0x88800000, 0x89000000, 0x89800000, 0x8a000000, 0x8a800000,
0x8b000000, 0x8b800000, 0x8c000000, 0x8c800000, 0x8d000000, 0x8d800000,
0x8e000000, 0x8e800000, 0x8f000000, 0xc7800000
};
static cmsUInt16Number Base[512] = {
0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000,
0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000,
0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000,
0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000,
0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000,
0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000,
0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000,
0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000,
0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000,
0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000,
0x0000, 0x0000, 0x0000, 0x0001, 0x0002, 0x0004, 0x0008, 0x0010, 0x0020, 0x0040,
0x0080, 0x0100, 0x0200, 0x0400, 0x0800, 0x0c00, 0x1000, 0x1400, 0x1800, 0x1c00,
0x2000, 0x2400, 0x2800, 0x2c00, 0x3000, 0x3400, 0x3800, 0x3c00, 0x4000, 0x4400,
0x4800, 0x4c00, 0x5000, 0x5400, 0x5800, 0x5c00, 0x6000, 0x6400, 0x6800, 0x6c00,
0x7000, 0x7400, 0x7800, 0x7c00, 0x7c00, 0x7c00, 0x7c00, 0x7c00, 0x7c00, 0x7c00,
0x7c00, 0x7c00, 0x7c00, 0x7c00, 0x7c00, 0x7c00, 0x7c00, 0x7c00, 0x7c00, 0x7c00,
0x7c00, 0x7c00, 0x7c00, 0x7c00, 0x7c00, 0x7c00, 0x7c00, 0x7c00, 0x7c00, 0x7c00,
0x7c00, 0x7c00, 0x7c00, 0x7c00, 0x7c00, 0x7c00, 0x7c00, 0x7c00, 0x7c00, 0x7c00,
0x7c00, 0x7c00, 0x7c00, 0x7c00, 0x7c00, 0x7c00, 0x7c00, 0x7c00, 0x7c00, 0x7c00,
0x7c00, 0x7c00, 0x7c00, 0x7c00, 0x7c00, 0x7c00, 0x7c00, 0x7c00, 0x7c00, 0x7c00,
0x7c00, 0x7c00, 0x7c00, 0x7c00, 0x7c00, 0x7c00, 0x7c00, 0x7c00, 0x7c00, 0x7c00,
0x7c00, 0x7c00, 0x7c00, 0x7c00, 0x7c00, 0x7c00, 0x7c00, 0x7c00, 0x7c00, 0x7c00,
0x7c00, 0x7c00, 0x7c00, 0x7c00, 0x7c00, 0x7c00, 0x7c00, 0x7c00, 0x7c00, 0x7c00,
0x7c00, 0x7c00, 0x7c00, 0x7c00, 0x7c00, 0x7c00, 0x7c00, 0x7c00, 0x7c00, 0x7c00,
0x7c00, 0x7c00, 0x7c00, 0x7c00, 0x7c00, 0x7c00, 0x7c00, 0x7c00, 0x7c00, 0x7c00,
0x7c00, 0x7c00, 0x7c00, 0x7c00, 0x7c00, 0x7c00, 0x8000, 0x8000, 0x8000, 0x8000,
0x8000, 0x8000, 0x8000, 0x8000, 0x8000, 0x8000, 0x8000, 0x8000, 0x8000, 0x8000,
0x8000, 0x8000, 0x8000, 0x8000, 0x8000, 0x8000, 0x8000, 0x8000, 0x8000, 0x8000,
0x8000, 0x8000, 0x8000, 0x8000, 0x8000, 0x8000, 0x8000, 0x8000, 0x8000, 0x8000,
0x8000, 0x8000, 0x8000, 0x8000, 0x8000, 0x8000, 0x8000, 0x8000, 0x8000, 0x8000,
0x8000, 0x8000, 0x8000, 0x8000, 0x8000, 0x8000, 0x8000, 0x8000, 0x8000, 0x8000,
0x8000, 0x8000, 0x8000, 0x8000, 0x8000, 0x8000, 0x8000, 0x8000, 0x8000, 0x8000,
0x8000, 0x8000, 0x8000, 0x8000, 0x8000, 0x8000, 0x8000, 0x8000, 0x8000, 0x8000,
0x8000, 0x8000, 0x8000, 0x8000, 0x8000, 0x8000, 0x8000, 0x8000, 0x8000, 0x8000,
0x8000, 0x8000, 0x8000, 0x8000, 0x8000, 0x8000, 0x8000, 0x8000, 0x8000, 0x8000,
0x8000, 0x8000, 0x8000, 0x8000, 0x8000, 0x8000, 0x8000, 0x8000, 0x8000, 0x8001,
0x8002, 0x8004, 0x8008, 0x8010, 0x8020, 0x8040, 0x8080, 0x8100, 0x8200, 0x8400,
0x8800, 0x8c00, 0x9000, 0x9400, 0x9800, 0x9c00, 0xa000, 0xa400, 0xa800, 0xac00,
0xb000, 0xb400, 0xb800, 0xbc00, 0xc000, 0xc400, 0xc800, 0xcc00, 0xd000, 0xd400,
0xd800, 0xdc00, 0xe000, 0xe400, 0xe800, 0xec00, 0xf000, 0xf400, 0xf800, 0xfc00,
0xfc00, 0xfc00, 0xfc00, 0xfc00, 0xfc00, 0xfc00, 0xfc00, 0xfc00, 0xfc00, 0xfc00,
0xfc00, 0xfc00, 0xfc00, 0xfc00, 0xfc00, 0xfc00, 0xfc00, 0xfc00, 0xfc00, 0xfc00,
0xfc00, 0xfc00, 0xfc00, 0xfc00, 0xfc00, 0xfc00, 0xfc00, 0xfc00, 0xfc00, 0xfc00,
0xfc00, 0xfc00, 0xfc00, 0xfc00, 0xfc00, 0xfc00, 0xfc00, 0xfc00, 0xfc00, 0xfc00,
0xfc00, 0xfc00, 0xfc00, 0xfc00, 0xfc00, 0xfc00, 0xfc00, 0xfc00, 0xfc00, 0xfc00,
0xfc00, 0xfc00, 0xfc00, 0xfc00, 0xfc00, 0xfc00, 0xfc00, 0xfc00, 0xfc00, 0xfc00,
0xfc00, 0xfc00, 0xfc00, 0xfc00, 0xfc00, 0xfc00, 0xfc00, 0xfc00, 0xfc00, 0xfc00,
0xfc00, 0xfc00, 0xfc00, 0xfc00, 0xfc00, 0xfc00, 0xfc00, 0xfc00, 0xfc00, 0xfc00,
0xfc00, 0xfc00, 0xfc00, 0xfc00, 0xfc00, 0xfc00, 0xfc00, 0xfc00, 0xfc00, 0xfc00,
0xfc00, 0xfc00, 0xfc00, 0xfc00, 0xfc00, 0xfc00, 0xfc00, 0xfc00, 0xfc00, 0xfc00,
0xfc00, 0xfc00, 0xfc00, 0xfc00, 0xfc00, 0xfc00, 0xfc00, 0xfc00, 0xfc00, 0xfc00,
0xfc00, 0xfc00
};
static cmsUInt8Number Shift[512] = {
0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18,
0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18,
0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18,
0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18,
0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18,
0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18,
0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18,
0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x17,
0x16, 0x15, 0x14, 0x13, 0x12, 0x11, 0x10, 0x0f, 0x0e, 0x0d, 0x0d, 0x0d, 0x0d,
0x0d, 0x0d, 0x0d, 0x0d, 0x0d, 0x0d, 0x0d, 0x0d, 0x0d, 0x0d, 0x0d, 0x0d, 0x0d,
0x0d, 0x0d, 0x0d, 0x0d, 0x0d, 0x0d, 0x0d, 0x0d, 0x0d, 0x0d, 0x0d, 0x0d, 0x0d,
0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18,
0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18,
0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18,
0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18,
0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18,
0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18,
0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18,
0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18,
0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x0d, 0x18, 0x18, 0x18, 0x18,
0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18,
0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18,
0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18,
0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18,
0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18,
0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18,
0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18,
0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x17, 0x16, 0x15, 0x14, 0x13,
0x12, 0x11, 0x10, 0x0f, 0x0e, 0x0d, 0x0d, 0x0d, 0x0d, 0x0d, 0x0d, 0x0d, 0x0d,
0x0d, 0x0d, 0x0d, 0x0d, 0x0d, 0x0d, 0x0d, 0x0d, 0x0d, 0x0d, 0x0d, 0x0d, 0x0d,
0x0d, 0x0d, 0x0d, 0x0d, 0x0d, 0x0d, 0x0d, 0x0d, 0x0d, 0x18, 0x18, 0x18, 0x18,
0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18,
0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18,
0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18,
0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18,
0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18,
0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18,
0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18,
0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18,
0x18, 0x18, 0x18, 0x18, 0x0d
};
cmsFloat32Number _cmsHalf2Float(cmsUInt16Number h)
{
union {
cmsFloat32Number flt;
cmsUInt32Number num;
} out;
int n = h >> 10;
out.num = Mantissa[ (h & 0x3ff) + Offset[ n ] ] + Exponent[ n ];
return out.flt;
}
cmsUInt16Number _cmsFloat2Half(cmsFloat32Number flt)
{
union {
cmsFloat32Number flt;
cmsUInt32Number num;
} in;
cmsUInt32Number n, j;
in.flt = flt;
n = in.num;
j = (n >> 23) & 0x1ff;
return (cmsUInt16Number) ((cmsUInt32Number) Base[ j ] + (( n & 0x007fffff) >> Shift[ j ]));
}
#endif
|
48 | ./little-cms/src/cmslut.c | //---------------------------------------------------------------------------------
//
// Little Color Management System
// Copyright (c) 1998-2012 Marti Maria Saguer
//
// Permission is hereby granted, free of charge, to any person obtaining
// a copy of this software and associated documentation files (the "Software"),
// to deal in the Software without restriction, including without limitation
// the rights to use, copy, modify, merge, publish, distribute, sublicense,
// and/or sell copies of the Software, and to permit persons to whom the Software
// is furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO
// THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
// LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
// OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
// WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
//
//---------------------------------------------------------------------------------
//
#include "lcms2_internal.h"
// Allocates an empty multi profile element
cmsStage* CMSEXPORT _cmsStageAllocPlaceholder(cmsContext ContextID,
cmsStageSignature Type,
cmsUInt32Number InputChannels,
cmsUInt32Number OutputChannels,
_cmsStageEvalFn EvalPtr,
_cmsStageDupElemFn DupElemPtr,
_cmsStageFreeElemFn FreePtr,
void* Data)
{
cmsStage* ph = (cmsStage*) _cmsMallocZero(ContextID, sizeof(cmsStage));
if (ph == NULL) return NULL;
ph ->ContextID = ContextID;
ph ->Type = Type;
ph ->Implements = Type; // By default, no clue on what is implementing
ph ->InputChannels = InputChannels;
ph ->OutputChannels = OutputChannels;
ph ->EvalPtr = EvalPtr;
ph ->DupElemPtr = DupElemPtr;
ph ->FreePtr = FreePtr;
ph ->Data = Data;
return ph;
}
static
void EvaluateIdentity(const cmsFloat32Number In[],
cmsFloat32Number Out[],
const cmsStage *mpe)
{
memmove(Out, In, mpe ->InputChannels * sizeof(cmsFloat32Number));
}
cmsStage* CMSEXPORT cmsStageAllocIdentity(cmsContext ContextID, cmsUInt32Number nChannels)
{
return _cmsStageAllocPlaceholder(ContextID,
cmsSigIdentityElemType,
nChannels, nChannels,
EvaluateIdentity,
NULL,
NULL,
NULL);
}
// Conversion functions. From floating point to 16 bits
static
void FromFloatTo16(const cmsFloat32Number In[], cmsUInt16Number Out[], cmsUInt32Number n)
{
cmsUInt32Number i;
for (i=0; i < n; i++) {
Out[i] = _cmsQuickSaturateWord(In[i] * 65535.0);
}
}
// From 16 bits to floating point
static
void From16ToFloat(const cmsUInt16Number In[], cmsFloat32Number Out[], cmsUInt32Number n)
{
cmsUInt32Number i;
for (i=0; i < n; i++) {
Out[i] = (cmsFloat32Number) In[i] / 65535.0F;
}
}
// This function is quite useful to analyze the structure of a LUT and retrieve the MPE elements
// that conform the LUT. It should be called with the LUT, the number of expected elements and
// then a list of expected types followed with a list of cmsFloat64Number pointers to MPE elements. If
// the function founds a match with current pipeline, it fills the pointers and returns TRUE
// if not, returns FALSE without touching anything. Setting pointers to NULL does bypass
// the storage process.
cmsBool CMSEXPORT cmsPipelineCheckAndRetreiveStages(const cmsPipeline* Lut, cmsUInt32Number n, ...)
{
va_list args;
cmsUInt32Number i;
cmsStage* mpe;
cmsStageSignature Type;
void** ElemPtr;
// Make sure same number of elements
if (cmsPipelineStageCount(Lut) != n) return FALSE;
va_start(args, n);
// Iterate across asked types
mpe = Lut ->Elements;
for (i=0; i < n; i++) {
// Get asked type
Type = (cmsStageSignature)va_arg(args, cmsStageSignature);
if (mpe ->Type != Type) {
va_end(args); // Mismatch. We are done.
return FALSE;
}
mpe = mpe ->Next;
}
// Found a combination, fill pointers if not NULL
mpe = Lut ->Elements;
for (i=0; i < n; i++) {
ElemPtr = va_arg(args, void**);
if (ElemPtr != NULL)
*ElemPtr = mpe;
mpe = mpe ->Next;
}
va_end(args);
return TRUE;
}
// Below there are implementations for several types of elements. Each type may be implemented by a
// evaluation function, a duplication function, a function to free resources and a constructor.
// *************************************************************************************************
// Type cmsSigCurveSetElemType (curves)
// *************************************************************************************************
cmsToneCurve** _cmsStageGetPtrToCurveSet(const cmsStage* mpe)
{
_cmsStageToneCurvesData* Data = (_cmsStageToneCurvesData*) mpe ->Data;
return Data ->TheCurves;
}
static
void EvaluateCurves(const cmsFloat32Number In[],
cmsFloat32Number Out[],
const cmsStage *mpe)
{
_cmsStageToneCurvesData* Data;
cmsUInt32Number i;
_cmsAssert(mpe != NULL);
Data = (_cmsStageToneCurvesData*) mpe ->Data;
if (Data == NULL) return;
if (Data ->TheCurves == NULL) return;
for (i=0; i < Data ->nCurves; i++) {
Out[i] = cmsEvalToneCurveFloat(Data ->TheCurves[i], In[i]);
}
}
static
void CurveSetElemTypeFree(cmsStage* mpe)
{
_cmsStageToneCurvesData* Data;
cmsUInt32Number i;
_cmsAssert(mpe != NULL);
Data = (_cmsStageToneCurvesData*) mpe ->Data;
if (Data == NULL) return;
if (Data ->TheCurves != NULL) {
for (i=0; i < Data ->nCurves; i++) {
if (Data ->TheCurves[i] != NULL)
cmsFreeToneCurve(Data ->TheCurves[i]);
}
}
_cmsFree(mpe ->ContextID, Data ->TheCurves);
_cmsFree(mpe ->ContextID, Data);
}
static
void* CurveSetDup(cmsStage* mpe)
{
_cmsStageToneCurvesData* Data = (_cmsStageToneCurvesData*) mpe ->Data;
_cmsStageToneCurvesData* NewElem;
cmsUInt32Number i;
NewElem = (_cmsStageToneCurvesData*) _cmsMallocZero(mpe ->ContextID, sizeof(_cmsStageToneCurvesData));
if (NewElem == NULL) return NULL;
NewElem ->nCurves = Data ->nCurves;
NewElem ->TheCurves = (cmsToneCurve**) _cmsCalloc(mpe ->ContextID, NewElem ->nCurves, sizeof(cmsToneCurve*));
if (NewElem ->TheCurves == NULL) goto Error;
for (i=0; i < NewElem ->nCurves; i++) {
// Duplicate each curve. It may fail.
NewElem ->TheCurves[i] = cmsDupToneCurve(Data ->TheCurves[i]);
if (NewElem ->TheCurves[i] == NULL) goto Error;
}
return (void*) NewElem;
Error:
if (NewElem ->TheCurves != NULL) {
for (i=0; i < NewElem ->nCurves; i++) {
if (NewElem ->TheCurves[i])
cmsFreeToneCurve(NewElem ->TheCurves[i]);
}
}
_cmsFree(mpe ->ContextID, NewElem ->TheCurves);
_cmsFree(mpe ->ContextID, NewElem);
return NULL;
}
// Curves == NULL forces identity curves
cmsStage* CMSEXPORT cmsStageAllocToneCurves(cmsContext ContextID, cmsUInt32Number nChannels, cmsToneCurve* const Curves[])
{
cmsUInt32Number i;
_cmsStageToneCurvesData* NewElem;
cmsStage* NewMPE;
NewMPE = _cmsStageAllocPlaceholder(ContextID, cmsSigCurveSetElemType, nChannels, nChannels,
EvaluateCurves, CurveSetDup, CurveSetElemTypeFree, NULL );
if (NewMPE == NULL) return NULL;
NewElem = (_cmsStageToneCurvesData*) _cmsMallocZero(ContextID, sizeof(_cmsStageToneCurvesData));
if (NewElem == NULL) {
cmsStageFree(NewMPE);
return NULL;
}
NewMPE ->Data = (void*) NewElem;
NewElem ->nCurves = nChannels;
NewElem ->TheCurves = (cmsToneCurve**) _cmsCalloc(ContextID, nChannels, sizeof(cmsToneCurve*));
if (NewElem ->TheCurves == NULL) {
cmsStageFree(NewMPE);
return NULL;
}
for (i=0; i < nChannels; i++) {
if (Curves == NULL) {
NewElem ->TheCurves[i] = cmsBuildGamma(ContextID, 1.0);
}
else {
NewElem ->TheCurves[i] = cmsDupToneCurve(Curves[i]);
}
if (NewElem ->TheCurves[i] == NULL) {
cmsStageFree(NewMPE);
return NULL;
}
}
return NewMPE;
}
// Create a bunch of identity curves
cmsStage* _cmsStageAllocIdentityCurves(cmsContext ContextID, int nChannels)
{
cmsStage* mpe = cmsStageAllocToneCurves(ContextID, nChannels, NULL);
if (mpe == NULL) return NULL;
mpe ->Implements = cmsSigIdentityElemType;
return mpe;
}
// *************************************************************************************************
// Type cmsSigMatrixElemType (Matrices)
// *************************************************************************************************
// Special care should be taken here because precision loss. A temporary cmsFloat64Number buffer is being used
static
void EvaluateMatrix(const cmsFloat32Number In[],
cmsFloat32Number Out[],
const cmsStage *mpe)
{
cmsUInt32Number i, j;
_cmsStageMatrixData* Data = (_cmsStageMatrixData*) mpe ->Data;
cmsFloat64Number Tmp;
// Input is already in 0..1.0 notation
for (i=0; i < mpe ->OutputChannels; i++) {
Tmp = 0;
for (j=0; j < mpe->InputChannels; j++) {
Tmp += In[j] * Data->Double[i*mpe->InputChannels + j];
}
if (Data ->Offset != NULL)
Tmp += Data->Offset[i];
Out[i] = (cmsFloat32Number) Tmp;
}
// Output in 0..1.0 domain
}
// Duplicate a yet-existing matrix element
static
void* MatrixElemDup(cmsStage* mpe)
{
_cmsStageMatrixData* Data = (_cmsStageMatrixData*) mpe ->Data;
_cmsStageMatrixData* NewElem;
cmsUInt32Number sz;
NewElem = (_cmsStageMatrixData*) _cmsMallocZero(mpe ->ContextID, sizeof(_cmsStageMatrixData));
if (NewElem == NULL) return NULL;
sz = mpe ->InputChannels * mpe ->OutputChannels;
NewElem ->Double = (cmsFloat64Number*) _cmsDupMem(mpe ->ContextID, Data ->Double, sz * sizeof(cmsFloat64Number)) ;
if (Data ->Offset)
NewElem ->Offset = (cmsFloat64Number*) _cmsDupMem(mpe ->ContextID,
Data ->Offset, mpe -> OutputChannels * sizeof(cmsFloat64Number)) ;
return (void*) NewElem;
}
static
void MatrixElemTypeFree(cmsStage* mpe)
{
_cmsStageMatrixData* Data = (_cmsStageMatrixData*) mpe ->Data;
if (Data == NULL)
return;
if (Data ->Double)
_cmsFree(mpe ->ContextID, Data ->Double);
if (Data ->Offset)
_cmsFree(mpe ->ContextID, Data ->Offset);
_cmsFree(mpe ->ContextID, mpe ->Data);
}
cmsStage* CMSEXPORT cmsStageAllocMatrix(cmsContext ContextID, cmsUInt32Number Rows, cmsUInt32Number Cols,
const cmsFloat64Number* Matrix, const cmsFloat64Number* Offset)
{
cmsUInt32Number i, n;
_cmsStageMatrixData* NewElem;
cmsStage* NewMPE;
n = Rows * Cols;
// Check for overflow
if (n == 0) return NULL;
if (n >= UINT_MAX / Cols) return NULL;
if (n >= UINT_MAX / Rows) return NULL;
if (n < Rows || n < Cols) return NULL;
NewMPE = _cmsStageAllocPlaceholder(ContextID, cmsSigMatrixElemType, Cols, Rows,
EvaluateMatrix, MatrixElemDup, MatrixElemTypeFree, NULL );
if (NewMPE == NULL) return NULL;
NewElem = (_cmsStageMatrixData*) _cmsMallocZero(ContextID, sizeof(_cmsStageMatrixData));
if (NewElem == NULL) return NULL;
NewElem ->Double = (cmsFloat64Number*) _cmsCalloc(ContextID, n, sizeof(cmsFloat64Number));
if (NewElem->Double == NULL) {
MatrixElemTypeFree(NewMPE);
return NULL;
}
for (i=0; i < n; i++) {
NewElem ->Double[i] = Matrix[i];
}
if (Offset != NULL) {
NewElem ->Offset = (cmsFloat64Number*) _cmsCalloc(ContextID, Cols, sizeof(cmsFloat64Number));
if (NewElem->Offset == NULL) {
MatrixElemTypeFree(NewMPE);
return NULL;
}
for (i=0; i < Cols; i++) {
NewElem ->Offset[i] = Offset[i];
}
}
NewMPE ->Data = (void*) NewElem;
return NewMPE;
}
// *************************************************************************************************
// Type cmsSigCLutElemType
// *************************************************************************************************
// Evaluate in true floating point
static
void EvaluateCLUTfloat(const cmsFloat32Number In[], cmsFloat32Number Out[], const cmsStage *mpe)
{
_cmsStageCLutData* Data = (_cmsStageCLutData*) mpe ->Data;
Data -> Params ->Interpolation.LerpFloat(In, Out, Data->Params);
}
// Convert to 16 bits, evaluate, and back to floating point
static
void EvaluateCLUTfloatIn16(const cmsFloat32Number In[], cmsFloat32Number Out[], const cmsStage *mpe)
{
_cmsStageCLutData* Data = (_cmsStageCLutData*) mpe ->Data;
cmsUInt16Number In16[MAX_STAGE_CHANNELS], Out16[MAX_STAGE_CHANNELS];
_cmsAssert(mpe ->InputChannels <= MAX_STAGE_CHANNELS);
_cmsAssert(mpe ->OutputChannels <= MAX_STAGE_CHANNELS);
FromFloatTo16(In, In16, mpe ->InputChannels);
Data -> Params ->Interpolation.Lerp16(In16, Out16, Data->Params);
From16ToFloat(Out16, Out, mpe ->OutputChannels);
}
// Given an hypercube of b dimensions, with Dims[] number of nodes by dimension, calculate the total amount of nodes
static
cmsUInt32Number CubeSize(const cmsUInt32Number Dims[], cmsUInt32Number b)
{
cmsUInt32Number rv, dim;
_cmsAssert(Dims != NULL);
for (rv = 1; b > 0; b--) {
dim = Dims[b-1];
if (dim == 0) return 0; // Error
rv *= dim;
// Check for overflow
if (rv > UINT_MAX / dim) return 0;
}
return rv;
}
static
void* CLUTElemDup(cmsStage* mpe)
{
_cmsStageCLutData* Data = (_cmsStageCLutData*) mpe ->Data;
_cmsStageCLutData* NewElem;
NewElem = (_cmsStageCLutData*) _cmsMallocZero(mpe ->ContextID, sizeof(_cmsStageCLutData));
if (NewElem == NULL) return NULL;
NewElem ->nEntries = Data ->nEntries;
NewElem ->HasFloatValues = Data ->HasFloatValues;
if (Data ->Tab.T) {
if (Data ->HasFloatValues) {
NewElem ->Tab.TFloat = (cmsFloat32Number*) _cmsDupMem(mpe ->ContextID, Data ->Tab.TFloat, Data ->nEntries * sizeof (cmsFloat32Number));
if (NewElem ->Tab.TFloat == NULL)
goto Error;
} else {
NewElem ->Tab.T = (cmsUInt16Number*) _cmsDupMem(mpe ->ContextID, Data ->Tab.T, Data ->nEntries * sizeof (cmsUInt16Number));
if (NewElem ->Tab.TFloat == NULL)
goto Error;
}
}
NewElem ->Params = _cmsComputeInterpParamsEx(mpe ->ContextID,
Data ->Params ->nSamples,
Data ->Params ->nInputs,
Data ->Params ->nOutputs,
NewElem ->Tab.T,
Data ->Params ->dwFlags);
if (NewElem->Params != NULL)
return (void*) NewElem;
Error:
if (NewElem->Tab.T)
// This works for both types
_cmsFree(mpe ->ContextID, NewElem -> Tab.T);
_cmsFree(mpe ->ContextID, NewElem);
return NULL;
}
static
void CLutElemTypeFree(cmsStage* mpe)
{
_cmsStageCLutData* Data = (_cmsStageCLutData*) mpe ->Data;
// Already empty
if (Data == NULL) return;
// This works for both types
if (Data -> Tab.T)
_cmsFree(mpe ->ContextID, Data -> Tab.T);
_cmsFreeInterpParams(Data ->Params);
_cmsFree(mpe ->ContextID, mpe ->Data);
}
// Allocates a 16-bit multidimensional CLUT. This is evaluated at 16-bit precision. Table may have different
// granularity on each dimension.
cmsStage* CMSEXPORT cmsStageAllocCLut16bitGranular(cmsContext ContextID,
const cmsUInt32Number clutPoints[],
cmsUInt32Number inputChan,
cmsUInt32Number outputChan,
const cmsUInt16Number* Table)
{
cmsUInt32Number i, n;
_cmsStageCLutData* NewElem;
cmsStage* NewMPE;
_cmsAssert(clutPoints != NULL);
if (inputChan > MAX_INPUT_DIMENSIONS) {
cmsSignalError(ContextID, cmsERROR_RANGE, "Too many input channels (%d channels, max=%d)", inputChan, MAX_INPUT_DIMENSIONS);
return NULL;
}
NewMPE = _cmsStageAllocPlaceholder(ContextID, cmsSigCLutElemType, inputChan, outputChan,
EvaluateCLUTfloatIn16, CLUTElemDup, CLutElemTypeFree, NULL );
if (NewMPE == NULL) return NULL;
NewElem = (_cmsStageCLutData*) _cmsMallocZero(ContextID, sizeof(_cmsStageCLutData));
if (NewElem == NULL) {
cmsStageFree(NewMPE);
return NULL;
}
NewMPE ->Data = (void*) NewElem;
NewElem -> nEntries = n = outputChan * CubeSize(clutPoints, inputChan);
NewElem -> HasFloatValues = FALSE;
if (n == 0) {
cmsStageFree(NewMPE);
return NULL;
}
NewElem ->Tab.T = (cmsUInt16Number*) _cmsCalloc(ContextID, n, sizeof(cmsUInt16Number));
if (NewElem ->Tab.T == NULL) {
cmsStageFree(NewMPE);
return NULL;
}
if (Table != NULL) {
for (i=0; i < n; i++) {
NewElem ->Tab.T[i] = Table[i];
}
}
NewElem ->Params = _cmsComputeInterpParamsEx(ContextID, clutPoints, inputChan, outputChan, NewElem ->Tab.T, CMS_LERP_FLAGS_16BITS);
if (NewElem ->Params == NULL) {
cmsStageFree(NewMPE);
return NULL;
}
return NewMPE;
}
cmsStage* CMSEXPORT cmsStageAllocCLut16bit(cmsContext ContextID,
cmsUInt32Number nGridPoints,
cmsUInt32Number inputChan,
cmsUInt32Number outputChan,
const cmsUInt16Number* Table)
{
cmsUInt32Number Dimensions[MAX_INPUT_DIMENSIONS];
int i;
// Our resulting LUT would be same gridpoints on all dimensions
for (i=0; i < MAX_INPUT_DIMENSIONS; i++)
Dimensions[i] = nGridPoints;
return cmsStageAllocCLut16bitGranular(ContextID, Dimensions, inputChan, outputChan, Table);
}
cmsStage* CMSEXPORT cmsStageAllocCLutFloat(cmsContext ContextID,
cmsUInt32Number nGridPoints,
cmsUInt32Number inputChan,
cmsUInt32Number outputChan,
const cmsFloat32Number* Table)
{
cmsUInt32Number Dimensions[MAX_INPUT_DIMENSIONS];
int i;
// Our resulting LUT would be same gridpoints on all dimensions
for (i=0; i < MAX_INPUT_DIMENSIONS; i++)
Dimensions[i] = nGridPoints;
return cmsStageAllocCLutFloatGranular(ContextID, Dimensions, inputChan, outputChan, Table);
}
cmsStage* CMSEXPORT cmsStageAllocCLutFloatGranular(cmsContext ContextID, const cmsUInt32Number clutPoints[], cmsUInt32Number inputChan, cmsUInt32Number outputChan, const cmsFloat32Number* Table)
{
cmsUInt32Number i, n;
_cmsStageCLutData* NewElem;
cmsStage* NewMPE;
_cmsAssert(clutPoints != NULL);
if (inputChan > MAX_INPUT_DIMENSIONS) {
cmsSignalError(ContextID, cmsERROR_RANGE, "Too many input channels (%d channels, max=%d)", inputChan, MAX_INPUT_DIMENSIONS);
return NULL;
}
NewMPE = _cmsStageAllocPlaceholder(ContextID, cmsSigCLutElemType, inputChan, outputChan,
EvaluateCLUTfloat, CLUTElemDup, CLutElemTypeFree, NULL);
if (NewMPE == NULL) return NULL;
NewElem = (_cmsStageCLutData*) _cmsMallocZero(ContextID, sizeof(_cmsStageCLutData));
if (NewElem == NULL) {
cmsStageFree(NewMPE);
return NULL;
}
NewMPE ->Data = (void*) NewElem;
// There is a potential integer overflow on conputing n and nEntries.
NewElem -> nEntries = n = outputChan * CubeSize(clutPoints, inputChan);
NewElem -> HasFloatValues = TRUE;
if (n == 0) {
cmsStageFree(NewMPE);
return NULL;
}
NewElem ->Tab.TFloat = (cmsFloat32Number*) _cmsCalloc(ContextID, n, sizeof(cmsFloat32Number));
if (NewElem ->Tab.TFloat == NULL) {
cmsStageFree(NewMPE);
return NULL;
}
if (Table != NULL) {
for (i=0; i < n; i++) {
NewElem ->Tab.TFloat[i] = Table[i];
}
}
NewElem ->Params = _cmsComputeInterpParamsEx(ContextID, clutPoints, inputChan, outputChan, NewElem ->Tab.TFloat, CMS_LERP_FLAGS_FLOAT);
if (NewElem ->Params == NULL) {
cmsStageFree(NewMPE);
return NULL;
}
return NewMPE;
}
static
int IdentitySampler(register const cmsUInt16Number In[], register cmsUInt16Number Out[], register void * Cargo)
{
int nChan = *(int*) Cargo;
int i;
for (i=0; i < nChan; i++)
Out[i] = In[i];
return 1;
}
// Creates an MPE that just copies input to output
cmsStage* _cmsStageAllocIdentityCLut(cmsContext ContextID, int nChan)
{
cmsUInt32Number Dimensions[MAX_INPUT_DIMENSIONS];
cmsStage* mpe ;
int i;
for (i=0; i < MAX_INPUT_DIMENSIONS; i++)
Dimensions[i] = 2;
mpe = cmsStageAllocCLut16bitGranular(ContextID, Dimensions, nChan, nChan, NULL);
if (mpe == NULL) return NULL;
if (!cmsStageSampleCLut16bit(mpe, IdentitySampler, &nChan, 0)) {
cmsStageFree(mpe);
return NULL;
}
mpe ->Implements = cmsSigIdentityElemType;
return mpe;
}
// Quantize a value 0 <= i < MaxSamples to 0..0xffff
cmsUInt16Number _cmsQuantizeVal(cmsFloat64Number i, int MaxSamples)
{
cmsFloat64Number x;
x = ((cmsFloat64Number) i * 65535.) / (cmsFloat64Number) (MaxSamples - 1);
return _cmsQuickSaturateWord(x);
}
// This routine does a sweep on whole input space, and calls its callback
// function on knots. returns TRUE if all ok, FALSE otherwise.
cmsBool CMSEXPORT cmsStageSampleCLut16bit(cmsStage* mpe, cmsSAMPLER16 Sampler, void * Cargo, cmsUInt32Number dwFlags)
{
int i, t, nTotalPoints, index, rest;
int nInputs, nOutputs;
cmsUInt32Number* nSamples;
cmsUInt16Number In[MAX_INPUT_DIMENSIONS+1], Out[MAX_STAGE_CHANNELS];
_cmsStageCLutData* clut;
if (mpe == NULL) return FALSE;
clut = (_cmsStageCLutData*) mpe->Data;
if (clut == NULL) return FALSE;
nSamples = clut->Params ->nSamples;
nInputs = clut->Params ->nInputs;
nOutputs = clut->Params ->nOutputs;
if (nInputs <= 0) return FALSE;
if (nOutputs <= 0) return FALSE;
if (nInputs > MAX_INPUT_DIMENSIONS) return FALSE;
if (nOutputs >= MAX_STAGE_CHANNELS) return FALSE;
nTotalPoints = CubeSize(nSamples, nInputs);
if (nTotalPoints == 0) return FALSE;
index = 0;
for (i = 0; i < nTotalPoints; i++) {
rest = i;
for (t = nInputs-1; t >=0; --t) {
cmsUInt32Number Colorant = rest % nSamples[t];
rest /= nSamples[t];
In[t] = _cmsQuantizeVal(Colorant, nSamples[t]);
}
if (clut ->Tab.T != NULL) {
for (t=0; t < nOutputs; t++)
Out[t] = clut->Tab.T[index + t];
}
if (!Sampler(In, Out, Cargo))
return FALSE;
if (!(dwFlags & SAMPLER_INSPECT)) {
if (clut ->Tab.T != NULL) {
for (t=0; t < nOutputs; t++)
clut->Tab.T[index + t] = Out[t];
}
}
index += nOutputs;
}
return TRUE;
}
// Same as anterior, but for floting point
cmsBool CMSEXPORT cmsStageSampleCLutFloat(cmsStage* mpe, cmsSAMPLERFLOAT Sampler, void * Cargo, cmsUInt32Number dwFlags)
{
int i, t, nTotalPoints, index, rest;
int nInputs, nOutputs;
cmsUInt32Number* nSamples;
cmsFloat32Number In[MAX_INPUT_DIMENSIONS+1], Out[MAX_STAGE_CHANNELS];
_cmsStageCLutData* clut = (_cmsStageCLutData*) mpe->Data;
nSamples = clut->Params ->nSamples;
nInputs = clut->Params ->nInputs;
nOutputs = clut->Params ->nOutputs;
if (nInputs <= 0) return FALSE;
if (nOutputs <= 0) return FALSE;
if (nInputs > MAX_INPUT_DIMENSIONS) return FALSE;
if (nOutputs >= MAX_STAGE_CHANNELS) return FALSE;
nTotalPoints = CubeSize(nSamples, nInputs);
if (nTotalPoints == 0) return FALSE;
index = 0;
for (i = 0; i < nTotalPoints; i++) {
rest = i;
for (t = nInputs-1; t >=0; --t) {
cmsUInt32Number Colorant = rest % nSamples[t];
rest /= nSamples[t];
In[t] = (cmsFloat32Number) (_cmsQuantizeVal(Colorant, nSamples[t]) / 65535.0);
}
if (clut ->Tab.TFloat != NULL) {
for (t=0; t < nOutputs; t++)
Out[t] = clut->Tab.TFloat[index + t];
}
if (!Sampler(In, Out, Cargo))
return FALSE;
if (!(dwFlags & SAMPLER_INSPECT)) {
if (clut ->Tab.TFloat != NULL) {
for (t=0; t < nOutputs; t++)
clut->Tab.TFloat[index + t] = Out[t];
}
}
index += nOutputs;
}
return TRUE;
}
// This routine does a sweep on whole input space, and calls its callback
// function on knots. returns TRUE if all ok, FALSE otherwise.
cmsBool CMSEXPORT cmsSliceSpace16(cmsUInt32Number nInputs, const cmsUInt32Number clutPoints[],
cmsSAMPLER16 Sampler, void * Cargo)
{
int i, t, nTotalPoints, rest;
cmsUInt16Number In[cmsMAXCHANNELS];
if (nInputs >= cmsMAXCHANNELS) return FALSE;
nTotalPoints = CubeSize(clutPoints, nInputs);
if (nTotalPoints == 0) return FALSE;
for (i = 0; i < nTotalPoints; i++) {
rest = i;
for (t = nInputs-1; t >=0; --t) {
cmsUInt32Number Colorant = rest % clutPoints[t];
rest /= clutPoints[t];
In[t] = _cmsQuantizeVal(Colorant, clutPoints[t]);
}
if (!Sampler(In, NULL, Cargo))
return FALSE;
}
return TRUE;
}
cmsInt32Number CMSEXPORT cmsSliceSpaceFloat(cmsUInt32Number nInputs, const cmsUInt32Number clutPoints[],
cmsSAMPLERFLOAT Sampler, void * Cargo)
{
int i, t, nTotalPoints, rest;
cmsFloat32Number In[cmsMAXCHANNELS];
if (nInputs >= cmsMAXCHANNELS) return FALSE;
nTotalPoints = CubeSize(clutPoints, nInputs);
if (nTotalPoints == 0) return FALSE;
for (i = 0; i < nTotalPoints; i++) {
rest = i;
for (t = nInputs-1; t >=0; --t) {
cmsUInt32Number Colorant = rest % clutPoints[t];
rest /= clutPoints[t];
In[t] = (cmsFloat32Number) (_cmsQuantizeVal(Colorant, clutPoints[t]) / 65535.0);
}
if (!Sampler(In, NULL, Cargo))
return FALSE;
}
return TRUE;
}
// ********************************************************************************
// Type cmsSigLab2XYZElemType
// ********************************************************************************
static
void EvaluateLab2XYZ(const cmsFloat32Number In[],
cmsFloat32Number Out[],
const cmsStage *mpe)
{
cmsCIELab Lab;
cmsCIEXYZ XYZ;
const cmsFloat64Number XYZadj = MAX_ENCODEABLE_XYZ;
// V4 rules
Lab.L = In[0] * 100.0;
Lab.a = In[1] * 255.0 - 128.0;
Lab.b = In[2] * 255.0 - 128.0;
cmsLab2XYZ(NULL, &XYZ, &Lab);
// From XYZ, range 0..19997 to 0..1.0, note that 1.99997 comes from 0xffff
// encoded as 1.15 fixed point, so 1 + (32767.0 / 32768.0)
Out[0] = (cmsFloat32Number) ((cmsFloat64Number) XYZ.X / XYZadj);
Out[1] = (cmsFloat32Number) ((cmsFloat64Number) XYZ.Y / XYZadj);
Out[2] = (cmsFloat32Number) ((cmsFloat64Number) XYZ.Z / XYZadj);
return;
cmsUNUSED_PARAMETER(mpe);
}
// No dup or free routines needed, as the structure has no pointers in it.
cmsStage* _cmsStageAllocLab2XYZ(cmsContext ContextID)
{
return _cmsStageAllocPlaceholder(ContextID, cmsSigLab2XYZElemType, 3, 3, EvaluateLab2XYZ, NULL, NULL, NULL);
}
// ********************************************************************************
// v2 L=100 is supposed to be placed on 0xFF00. There is no reasonable
// number of gridpoints that would make exact match. However, a prelinearization
// of 258 entries, would map 0xFF00 exactly on entry 257, and this is good to avoid scum dot.
// Almost all what we need but unfortunately, the rest of entries should be scaled by
// (255*257/256) and this is not exact.
cmsStage* _cmsStageAllocLabV2ToV4curves(cmsContext ContextID)
{
cmsStage* mpe;
cmsToneCurve* LabTable[3];
int i, j;
LabTable[0] = cmsBuildTabulatedToneCurve16(ContextID, 258, NULL);
LabTable[1] = cmsBuildTabulatedToneCurve16(ContextID, 258, NULL);
LabTable[2] = cmsBuildTabulatedToneCurve16(ContextID, 258, NULL);
for (j=0; j < 3; j++) {
if (LabTable[j] == NULL) {
cmsFreeToneCurveTriple(LabTable);
return NULL;
}
// We need to map * (0xffff / 0xff00), thats same as (257 / 256)
// So we can use 258-entry tables to do the trick (i / 257) * (255 * 257) * (257 / 256);
for (i=0; i < 257; i++) {
LabTable[j]->Table16[i] = (cmsUInt16Number) ((i * 0xffff + 0x80) >> 8);
}
LabTable[j] ->Table16[257] = 0xffff;
}
mpe = cmsStageAllocToneCurves(ContextID, 3, LabTable);
cmsFreeToneCurveTriple(LabTable);
if (mpe == NULL) return NULL;
mpe ->Implements = cmsSigLabV2toV4;
return mpe;
}
// ********************************************************************************
// Matrix-based conversion, which is more accurate, but slower and cannot properly be saved in devicelink profiles
cmsStage* _cmsStageAllocLabV2ToV4(cmsContext ContextID)
{
static const cmsFloat64Number V2ToV4[] = { 65535.0/65280.0, 0, 0,
0, 65535.0/65280.0, 0,
0, 0, 65535.0/65280.0
};
cmsStage *mpe = cmsStageAllocMatrix(ContextID, 3, 3, V2ToV4, NULL);
if (mpe == NULL) return mpe;
mpe ->Implements = cmsSigLabV2toV4;
return mpe;
}
// Reverse direction
cmsStage* _cmsStageAllocLabV4ToV2(cmsContext ContextID)
{
static const cmsFloat64Number V4ToV2[] = { 65280.0/65535.0, 0, 0,
0, 65280.0/65535.0, 0,
0, 0, 65280.0/65535.0
};
cmsStage *mpe = cmsStageAllocMatrix(ContextID, 3, 3, V4ToV2, NULL);
if (mpe == NULL) return mpe;
mpe ->Implements = cmsSigLabV4toV2;
return mpe;
}
// To Lab to float. Note that the MPE gives numbers in normal Lab range
// and we need 0..1.0 range for the formatters
// L* : 0...100 => 0...1.0 (L* / 100)
// ab* : -128..+127 to 0..1 ((ab* + 128) / 255)
cmsStage* _cmsStageNormalizeFromLabFloat(cmsContext ContextID)
{
static const cmsFloat64Number a1[] = {
1.0/100.0, 0, 0,
0, 1.0/255.0, 0,
0, 0, 1.0/255.0
};
static const cmsFloat64Number o1[] = {
0,
128.0/255.0,
128.0/255.0
};
cmsStage *mpe = cmsStageAllocMatrix(ContextID, 3, 3, a1, o1);
if (mpe == NULL) return mpe;
mpe ->Implements = cmsSigLab2FloatPCS;
return mpe;
}
// Fom XYZ to floating point PCS
cmsStage* _cmsStageNormalizeFromXyzFloat(cmsContext ContextID)
{
#define n (32768.0/65535.0)
static const cmsFloat64Number a1[] = {
n, 0, 0,
0, n, 0,
0, 0, n
};
#undef n
cmsStage *mpe = cmsStageAllocMatrix(ContextID, 3, 3, a1, NULL);
if (mpe == NULL) return mpe;
mpe ->Implements = cmsSigXYZ2FloatPCS;
return mpe;
}
cmsStage* _cmsStageNormalizeToLabFloat(cmsContext ContextID)
{
static const cmsFloat64Number a1[] = {
100.0, 0, 0,
0, 255.0, 0,
0, 0, 255.0
};
static const cmsFloat64Number o1[] = {
0,
-128.0,
-128.0
};
cmsStage *mpe = cmsStageAllocMatrix(ContextID, 3, 3, a1, o1);
if (mpe == NULL) return mpe;
mpe ->Implements = cmsSigFloatPCS2Lab;
return mpe;
}
cmsStage* _cmsStageNormalizeToXyzFloat(cmsContext ContextID)
{
#define n (65535.0/32768.0)
static const cmsFloat64Number a1[] = {
n, 0, 0,
0, n, 0,
0, 0, n
};
#undef n
cmsStage *mpe = cmsStageAllocMatrix(ContextID, 3, 3, a1, NULL);
if (mpe == NULL) return mpe;
mpe ->Implements = cmsSigFloatPCS2XYZ;
return mpe;
}
// ********************************************************************************
// Type cmsSigXYZ2LabElemType
// ********************************************************************************
static
void EvaluateXYZ2Lab(const cmsFloat32Number In[], cmsFloat32Number Out[], const cmsStage *mpe)
{
cmsCIELab Lab;
cmsCIEXYZ XYZ;
const cmsFloat64Number XYZadj = MAX_ENCODEABLE_XYZ;
// From 0..1.0 to XYZ
XYZ.X = In[0] * XYZadj;
XYZ.Y = In[1] * XYZadj;
XYZ.Z = In[2] * XYZadj;
cmsXYZ2Lab(NULL, &Lab, &XYZ);
// From V4 Lab to 0..1.0
Out[0] = (cmsFloat32Number) (Lab.L / 100.0);
Out[1] = (cmsFloat32Number) ((Lab.a + 128.0) / 255.0);
Out[2] = (cmsFloat32Number) ((Lab.b + 128.0) / 255.0);
return;
cmsUNUSED_PARAMETER(mpe);
}
cmsStage* _cmsStageAllocXYZ2Lab(cmsContext ContextID)
{
return _cmsStageAllocPlaceholder(ContextID, cmsSigXYZ2LabElemType, 3, 3, EvaluateXYZ2Lab, NULL, NULL, NULL);
}
// ********************************************************************************
// For v4, S-Shaped curves are placed in a/b axis to increase resolution near gray
cmsStage* _cmsStageAllocLabPrelin(cmsContext ContextID)
{
cmsToneCurve* LabTable[3];
cmsFloat64Number Params[1] = {2.4} ;
LabTable[0] = cmsBuildGamma(ContextID, 1.0);
LabTable[1] = cmsBuildParametricToneCurve(ContextID, 108, Params);
LabTable[2] = cmsBuildParametricToneCurve(ContextID, 108, Params);
return cmsStageAllocToneCurves(ContextID, 3, LabTable);
}
// Free a single MPE
void CMSEXPORT cmsStageFree(cmsStage* mpe)
{
if (mpe ->FreePtr)
mpe ->FreePtr(mpe);
_cmsFree(mpe ->ContextID, mpe);
}
cmsUInt32Number CMSEXPORT cmsStageInputChannels(const cmsStage* mpe)
{
return mpe ->InputChannels;
}
cmsUInt32Number CMSEXPORT cmsStageOutputChannels(const cmsStage* mpe)
{
return mpe ->OutputChannels;
}
cmsStageSignature CMSEXPORT cmsStageType(const cmsStage* mpe)
{
return mpe -> Type;
}
void* CMSEXPORT cmsStageData(const cmsStage* mpe)
{
return mpe -> Data;
}
cmsStage* CMSEXPORT cmsStageNext(const cmsStage* mpe)
{
return mpe -> Next;
}
// Duplicates an MPE
cmsStage* CMSEXPORT cmsStageDup(cmsStage* mpe)
{
cmsStage* NewMPE;
if (mpe == NULL) return NULL;
NewMPE = _cmsStageAllocPlaceholder(mpe ->ContextID,
mpe ->Type,
mpe ->InputChannels,
mpe ->OutputChannels,
mpe ->EvalPtr,
mpe ->DupElemPtr,
mpe ->FreePtr,
NULL);
if (NewMPE == NULL) return NULL;
NewMPE ->Implements = mpe ->Implements;
if (mpe ->DupElemPtr) {
NewMPE ->Data = mpe ->DupElemPtr(mpe);
if (NewMPE->Data == NULL) {
cmsStageFree(NewMPE);
return NULL;
}
} else {
NewMPE ->Data = NULL;
}
return NewMPE;
}
// ***********************************************************************************************************
// This function sets up the channel count
static
void BlessLUT(cmsPipeline* lut)
{
// We can set the input/ouput channels only if we have elements.
if (lut ->Elements != NULL) {
cmsStage *First, *Last;
First = cmsPipelineGetPtrToFirstStage(lut);
Last = cmsPipelineGetPtrToLastStage(lut);
if (First != NULL)lut ->InputChannels = First ->InputChannels;
if (Last != NULL) lut ->OutputChannels = Last ->OutputChannels;
}
}
// Default to evaluate the LUT on 16 bit-basis. Precision is retained.
static
void _LUTeval16(register const cmsUInt16Number In[], register cmsUInt16Number Out[], register const void* D)
{
cmsPipeline* lut = (cmsPipeline*) D;
cmsStage *mpe;
cmsFloat32Number Storage[2][MAX_STAGE_CHANNELS];
int Phase = 0, NextPhase;
From16ToFloat(In, &Storage[Phase][0], lut ->InputChannels);
for (mpe = lut ->Elements;
mpe != NULL;
mpe = mpe ->Next) {
NextPhase = Phase ^ 1;
mpe ->EvalPtr(&Storage[Phase][0], &Storage[NextPhase][0], mpe);
Phase = NextPhase;
}
FromFloatTo16(&Storage[Phase][0], Out, lut ->OutputChannels);
}
// Does evaluate the LUT on cmsFloat32Number-basis.
static
void _LUTevalFloat(register const cmsFloat32Number In[], register cmsFloat32Number Out[], const void* D)
{
cmsPipeline* lut = (cmsPipeline*) D;
cmsStage *mpe;
cmsFloat32Number Storage[2][MAX_STAGE_CHANNELS];
int Phase = 0, NextPhase;
memmove(&Storage[Phase][0], In, lut ->InputChannels * sizeof(cmsFloat32Number));
for (mpe = lut ->Elements;
mpe != NULL;
mpe = mpe ->Next) {
NextPhase = Phase ^ 1;
mpe ->EvalPtr(&Storage[Phase][0], &Storage[NextPhase][0], mpe);
Phase = NextPhase;
}
memmove(Out, &Storage[Phase][0], lut ->OutputChannels * sizeof(cmsFloat32Number));
}
// LUT Creation & Destruction
cmsPipeline* CMSEXPORT cmsPipelineAlloc(cmsContext ContextID, cmsUInt32Number InputChannels, cmsUInt32Number OutputChannels)
{
cmsPipeline* NewLUT;
if (InputChannels >= cmsMAXCHANNELS ||
OutputChannels >= cmsMAXCHANNELS) return NULL;
NewLUT = (cmsPipeline*) _cmsMallocZero(ContextID, sizeof(cmsPipeline));
if (NewLUT == NULL) return NULL;
NewLUT -> InputChannels = InputChannels;
NewLUT -> OutputChannels = OutputChannels;
NewLUT ->Eval16Fn = _LUTeval16;
NewLUT ->EvalFloatFn = _LUTevalFloat;
NewLUT ->DupDataFn = NULL;
NewLUT ->FreeDataFn = NULL;
NewLUT ->Data = NewLUT;
NewLUT ->ContextID = ContextID;
BlessLUT(NewLUT);
return NewLUT;
}
cmsContext CMSEXPORT cmsGetPipelineContextID(const cmsPipeline* lut)
{
_cmsAssert(lut != NULL);
return lut ->ContextID;
}
cmsUInt32Number CMSEXPORT cmsPipelineInputChannels(const cmsPipeline* lut)
{
_cmsAssert(lut != NULL);
return lut ->InputChannels;
}
cmsUInt32Number CMSEXPORT cmsPipelineOutputChannels(const cmsPipeline* lut)
{
_cmsAssert(lut != NULL);
return lut ->OutputChannels;
}
// Free a profile elements LUT
void CMSEXPORT cmsPipelineFree(cmsPipeline* lut)
{
cmsStage *mpe, *Next;
if (lut == NULL) return;
for (mpe = lut ->Elements;
mpe != NULL;
mpe = Next) {
Next = mpe ->Next;
cmsStageFree(mpe);
}
if (lut ->FreeDataFn) lut ->FreeDataFn(lut ->ContextID, lut ->Data);
_cmsFree(lut ->ContextID, lut);
}
// Default to evaluate the LUT on 16 bit-basis.
void CMSEXPORT cmsPipelineEval16(const cmsUInt16Number In[], cmsUInt16Number Out[], const cmsPipeline* lut)
{
_cmsAssert(lut != NULL);
lut ->Eval16Fn(In, Out, lut->Data);
}
// Does evaluate the LUT on cmsFloat32Number-basis.
void CMSEXPORT cmsPipelineEvalFloat(const cmsFloat32Number In[], cmsFloat32Number Out[], const cmsPipeline* lut)
{
_cmsAssert(lut != NULL);
lut ->EvalFloatFn(In, Out, lut);
}
// Duplicates a LUT
cmsPipeline* CMSEXPORT cmsPipelineDup(const cmsPipeline* lut)
{
cmsPipeline* NewLUT;
cmsStage *NewMPE, *Anterior = NULL, *mpe;
cmsBool First = TRUE;
if (lut == NULL) return NULL;
NewLUT = cmsPipelineAlloc(lut ->ContextID, lut ->InputChannels, lut ->OutputChannels);
if (NewLUT == NULL) return NULL;
for (mpe = lut ->Elements;
mpe != NULL;
mpe = mpe ->Next) {
NewMPE = cmsStageDup(mpe);
if (NewMPE == NULL) {
cmsPipelineFree(NewLUT);
return NULL;
}
if (First) {
NewLUT ->Elements = NewMPE;
First = FALSE;
}
else {
Anterior ->Next = NewMPE;
}
Anterior = NewMPE;
}
NewLUT ->Eval16Fn = lut ->Eval16Fn;
NewLUT ->EvalFloatFn = lut ->EvalFloatFn;
NewLUT ->DupDataFn = lut ->DupDataFn;
NewLUT ->FreeDataFn = lut ->FreeDataFn;
if (NewLUT ->DupDataFn != NULL)
NewLUT ->Data = NewLUT ->DupDataFn(lut ->ContextID, lut->Data);
NewLUT ->SaveAs8Bits = lut ->SaveAs8Bits;
BlessLUT(NewLUT);
return NewLUT;
}
int CMSEXPORT cmsPipelineInsertStage(cmsPipeline* lut, cmsStageLoc loc, cmsStage* mpe)
{
cmsStage* Anterior = NULL, *pt;
if (lut == NULL || mpe == NULL)
return FALSE;
switch (loc) {
case cmsAT_BEGIN:
mpe ->Next = lut ->Elements;
lut ->Elements = mpe;
break;
case cmsAT_END:
if (lut ->Elements == NULL)
lut ->Elements = mpe;
else {
for (pt = lut ->Elements;
pt != NULL;
pt = pt -> Next) Anterior = pt;
Anterior ->Next = mpe;
mpe ->Next = NULL;
}
break;
default:;
return FALSE;
}
BlessLUT(lut);
return TRUE;
}
// Unlink an element and return the pointer to it
void CMSEXPORT cmsPipelineUnlinkStage(cmsPipeline* lut, cmsStageLoc loc, cmsStage** mpe)
{
cmsStage *Anterior, *pt, *Last;
cmsStage *Unlinked = NULL;
// If empty LUT, there is nothing to remove
if (lut ->Elements == NULL) {
if (mpe) *mpe = NULL;
return;
}
// On depending on the strategy...
switch (loc) {
case cmsAT_BEGIN:
{
cmsStage* elem = lut ->Elements;
lut ->Elements = elem -> Next;
elem ->Next = NULL;
Unlinked = elem;
}
break;
case cmsAT_END:
Anterior = Last = NULL;
for (pt = lut ->Elements;
pt != NULL;
pt = pt -> Next) {
Anterior = Last;
Last = pt;
}
Unlinked = Last; // Next already points to NULL
// Truncate the chain
if (Anterior)
Anterior ->Next = NULL;
else
lut ->Elements = NULL;
break;
default:;
}
if (mpe)
*mpe = Unlinked;
else
cmsStageFree(Unlinked);
BlessLUT(lut);
}
// Concatenate two LUT into a new single one
cmsBool CMSEXPORT cmsPipelineCat(cmsPipeline* l1, const cmsPipeline* l2)
{
cmsStage* mpe;
// If both LUTS does not have elements, we need to inherit
// the number of channels
if (l1 ->Elements == NULL && l2 ->Elements == NULL) {
l1 ->InputChannels = l2 ->InputChannels;
l1 ->OutputChannels = l2 ->OutputChannels;
}
// Cat second
for (mpe = l2 ->Elements;
mpe != NULL;
mpe = mpe ->Next) {
// We have to dup each element
if (!cmsPipelineInsertStage(l1, cmsAT_END, cmsStageDup(mpe)))
return FALSE;
}
BlessLUT(l1);
return TRUE;
}
cmsBool CMSEXPORT cmsPipelineSetSaveAs8bitsFlag(cmsPipeline* lut, cmsBool On)
{
cmsBool Anterior = lut ->SaveAs8Bits;
lut ->SaveAs8Bits = On;
return Anterior;
}
cmsStage* CMSEXPORT cmsPipelineGetPtrToFirstStage(const cmsPipeline* lut)
{
return lut ->Elements;
}
cmsStage* CMSEXPORT cmsPipelineGetPtrToLastStage(const cmsPipeline* lut)
{
cmsStage *mpe, *Anterior = NULL;
for (mpe = lut ->Elements; mpe != NULL; mpe = mpe ->Next)
Anterior = mpe;
return Anterior;
}
cmsUInt32Number CMSEXPORT cmsPipelineStageCount(const cmsPipeline* lut)
{
cmsStage *mpe;
cmsUInt32Number n;
for (n=0, mpe = lut ->Elements; mpe != NULL; mpe = mpe ->Next)
n++;
return n;
}
// This function may be used to set the optional evaluator and a block of private data. If private data is being used, an optional
// duplicator and free functions should also be specified in order to duplicate the LUT construct. Use NULL to inhibit such functionality.
void CMSEXPORT _cmsPipelineSetOptimizationParameters(cmsPipeline* Lut,
_cmsOPTeval16Fn Eval16,
void* PrivateData,
_cmsFreeUserDataFn FreePrivateDataFn,
_cmsDupUserDataFn DupPrivateDataFn)
{
Lut ->Eval16Fn = Eval16;
Lut ->DupDataFn = DupPrivateDataFn;
Lut ->FreeDataFn = FreePrivateDataFn;
Lut ->Data = PrivateData;
}
// ----------------------------------------------------------- Reverse interpolation
// Here's how it goes. The derivative Df(x) of the function f is the linear
// transformation that best approximates f near the point x. It can be represented
// by a matrix A whose entries are the partial derivatives of the components of f
// with respect to all the coordinates. This is know as the Jacobian
//
// The best linear approximation to f is given by the matrix equation:
//
// y-y0 = A (x-x0)
//
// So, if x0 is a good "guess" for the zero of f, then solving for the zero of this
// linear approximation will give a "better guess" for the zero of f. Thus let y=0,
// and since y0=f(x0) one can solve the above equation for x. This leads to the
// Newton's method formula:
//
// xn+1 = xn - A-1 f(xn)
//
// where xn+1 denotes the (n+1)-st guess, obtained from the n-th guess xn in the
// fashion described above. Iterating this will give better and better approximations
// if you have a "good enough" initial guess.
#define JACOBIAN_EPSILON 0.001f
#define INVERSION_MAX_ITERATIONS 30
// Increment with reflexion on boundary
static
void IncDelta(cmsFloat32Number *Val)
{
if (*Val < (1.0 - JACOBIAN_EPSILON))
*Val += JACOBIAN_EPSILON;
else
*Val -= JACOBIAN_EPSILON;
}
// Euclidean distance between two vectors of n elements each one
static
cmsFloat32Number EuclideanDistance(cmsFloat32Number a[], cmsFloat32Number b[], int n)
{
cmsFloat32Number sum = 0;
int i;
for (i=0; i < n; i++) {
cmsFloat32Number dif = b[i] - a[i];
sum += dif * dif;
}
return sqrtf(sum);
}
// Evaluate a LUT in reverse direction. It only searches on 3->3 LUT. Uses Newton method
//
// x1 <- x - [J(x)]^-1 * f(x)
//
// lut: The LUT on where to do the search
// Target: LabK, 3 values of Lab plus destination K which is fixed
// Result: The obtained CMYK
// Hint: Location where begin the search
cmsBool CMSEXPORT cmsPipelineEvalReverseFloat(cmsFloat32Number Target[],
cmsFloat32Number Result[],
cmsFloat32Number Hint[],
const cmsPipeline* lut)
{
cmsUInt32Number i, j;
cmsFloat64Number error, LastError = 1E20;
cmsFloat32Number fx[4], x[4], xd[4], fxd[4];
cmsVEC3 tmp, tmp2;
cmsMAT3 Jacobian;
// Only 3->3 and 4->3 are supported
if (lut ->InputChannels != 3 && lut ->InputChannels != 4) return FALSE;
if (lut ->OutputChannels != 3) return FALSE;
// Take the hint as starting point if specified
if (Hint == NULL) {
// Begin at any point, we choose 1/3 of CMY axis
x[0] = x[1] = x[2] = 0.3f;
}
else {
// Only copy 3 channels from hint...
for (j=0; j < 3; j++)
x[j] = Hint[j];
}
// If Lut is 4-dimensions, then grab target[3], which is fixed
if (lut ->InputChannels == 4) {
x[3] = Target[3];
}
else x[3] = 0; // To keep lint happy
// Iterate
for (i = 0; i < INVERSION_MAX_ITERATIONS; i++) {
// Get beginning fx
cmsPipelineEvalFloat(x, fx, lut);
// Compute error
error = EuclideanDistance(fx, Target, 3);
// If not convergent, return last safe value
if (error >= LastError)
break;
// Keep latest values
LastError = error;
for (j=0; j < lut ->InputChannels; j++)
Result[j] = x[j];
// Found an exact match?
if (error <= 0)
break;
// Obtain slope (the Jacobian)
for (j = 0; j < 3; j++) {
xd[0] = x[0];
xd[1] = x[1];
xd[2] = x[2];
xd[3] = x[3]; // Keep fixed channel
IncDelta(&xd[j]);
cmsPipelineEvalFloat(xd, fxd, lut);
Jacobian.v[0].n[j] = ((fxd[0] - fx[0]) / JACOBIAN_EPSILON);
Jacobian.v[1].n[j] = ((fxd[1] - fx[1]) / JACOBIAN_EPSILON);
Jacobian.v[2].n[j] = ((fxd[2] - fx[2]) / JACOBIAN_EPSILON);
}
// Solve system
tmp2.n[0] = fx[0] - Target[0];
tmp2.n[1] = fx[1] - Target[1];
tmp2.n[2] = fx[2] - Target[2];
if (!_cmsMAT3solve(&tmp, &Jacobian, &tmp2))
return FALSE;
// Move our guess
x[0] -= (cmsFloat32Number) tmp.n[0];
x[1] -= (cmsFloat32Number) tmp.n[1];
x[2] -= (cmsFloat32Number) tmp.n[2];
// Some clipping....
for (j=0; j < 3; j++) {
if (x[j] < 0) x[j] = 0;
else
if (x[j] > 1.0) x[j] = 1.0;
}
}
return TRUE;
}
|
49 | ./little-cms/src/cmsps2.c | //---------------------------------------------------------------------------------
//
// Little Color Management System
// Copyright (c) 1998-2011 Marti Maria Saguer
//
// Permission is hereby granted, free of charge, to any person obtaining
// a copy of this software and associated documentation files (the "Software"),
// to deal in the Software without restriction, including without limitation
// the rights to use, copy, modify, merge, publish, distribute, sublicense,
// and/or sell copies of the Software, and to permit persons to whom the Software
// is furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO
// THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
// LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
// OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
// WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
//
//---------------------------------------------------------------------------------
//
#include "lcms2_internal.h"
// PostScript ColorRenderingDictionary and ColorSpaceArray
#define MAXPSCOLS 60 // Columns on tables
/*
Implementation
--------------
PostScript does use XYZ as its internal PCS. But since PostScript
interpolation tables are limited to 8 bits, I use Lab as a way to
improve the accuracy, favoring perceptual results. So, for the creation
of each CRD, CSA the profiles are converted to Lab via a device
link between profile -> Lab or Lab -> profile. The PS code necessary to
convert Lab <-> XYZ is also included.
Color Space Arrays (CSA)
==================================================================================
In order to obtain precision, code chooses between three ways to implement
the device -> XYZ transform. These cases identifies monochrome profiles (often
implemented as a set of curves), matrix-shaper and Pipeline-based.
Monochrome
-----------
This is implemented as /CIEBasedA CSA. The prelinearization curve is
placed into /DecodeA section, and matrix equals to D50. Since here is
no interpolation tables, I do the conversion directly to XYZ
NOTE: CLUT-based monochrome profiles are NOT supported. So, cmsFLAGS_MATRIXINPUT
flag is forced on such profiles.
[ /CIEBasedA
<<
/DecodeA { transfer function } bind
/MatrixA [D50]
/RangeLMN [ 0.0 cmsD50X 0.0 cmsD50Y 0.0 cmsD50Z ]
/WhitePoint [D50]
/BlackPoint [BP]
/RenderingIntent (intent)
>>
]
On simpler profiles, the PCS is already XYZ, so no conversion is required.
Matrix-shaper based
-------------------
This is implemented both with /CIEBasedABC or /CIEBasedDEF on dependig
of profile implementation. Since here there are no interpolation tables, I do
the conversion directly to XYZ
[ /CIEBasedABC
<<
/DecodeABC [ {transfer1} {transfer2} {transfer3} ]
/MatrixABC [Matrix]
/RangeLMN [ 0.0 cmsD50X 0.0 cmsD50Y 0.0 cmsD50Z ]
/DecodeLMN [ { / 2} dup dup ]
/WhitePoint [D50]
/BlackPoint [BP]
/RenderingIntent (intent)
>>
]
CLUT based
----------
Lab is used in such cases.
[ /CIEBasedDEF
<<
/DecodeDEF [ <prelinearization> ]
/Table [ p p p [<...>]]
/RangeABC [ 0 1 0 1 0 1]
/DecodeABC[ <postlinearization> ]
/RangeLMN [ -0.236 1.254 0 1 -0.635 1.640 ]
% -128/500 1+127/500 0 1 -127/200 1+128/200
/MatrixABC [ 1 1 1 1 0 0 0 0 -1]
/WhitePoint [D50]
/BlackPoint [BP]
/RenderingIntent (intent)
]
Color Rendering Dictionaries (CRD)
==================================
These are always implemented as CLUT, and always are using Lab. Since CRD are expected to
be used as resources, the code adds the definition as well.
<<
/ColorRenderingType 1
/WhitePoint [ D50 ]
/BlackPoint [BP]
/MatrixPQR [ Bradford ]
/RangePQR [-0.125 1.375 -0.125 1.375 -0.125 1.375 ]
/TransformPQR [
{4 index 3 get div 2 index 3 get mul exch pop exch pop exch pop exch pop } bind
{4 index 4 get div 2 index 4 get mul exch pop exch pop exch pop exch pop } bind
{4 index 5 get div 2 index 5 get mul exch pop exch pop exch pop exch pop } bind
]
/MatrixABC <...>
/EncodeABC <...>
/RangeABC <.. used for XYZ -> Lab>
/EncodeLMN
/RenderTable [ p p p [<...>]]
/RenderingIntent (Perceptual)
>>
/Current exch /ColorRendering defineresource pop
The following stages are used to convert from XYZ to Lab
--------------------------------------------------------
Input is given at LMN stage on X, Y, Z
Encode LMN gives us f(X/Xn), f(Y/Yn), f(Z/Zn)
/EncodeLMN [
{ 0.964200 div dup 0.008856 le {7.787 mul 16 116 div add}{1 3 div exp} ifelse } bind
{ 1.000000 div dup 0.008856 le {7.787 mul 16 116 div add}{1 3 div exp} ifelse } bind
{ 0.824900 div dup 0.008856 le {7.787 mul 16 116 div add}{1 3 div exp} ifelse } bind
]
MatrixABC is used to compute f(Y/Yn), f(X/Xn) - f(Y/Yn), f(Y/Yn) - f(Z/Zn)
| 0 1 0|
| 1 -1 0|
| 0 1 -1|
/MatrixABC [ 0 1 0 1 -1 1 0 0 -1 ]
EncodeABC finally gives Lab values.
/EncodeABC [
{ 116 mul 16 sub 100 div } bind
{ 500 mul 128 add 255 div } bind
{ 200 mul 128 add 255 div } bind
]
The following stages are used to convert Lab to XYZ
----------------------------------------------------
/RangeABC [ 0 1 0 1 0 1]
/DecodeABC [ { 100 mul 16 add 116 div } bind
{ 255 mul 128 sub 500 div } bind
{ 255 mul 128 sub 200 div } bind
]
/MatrixABC [ 1 1 1 1 0 0 0 0 -1]
/DecodeLMN [
{dup 6 29 div ge {dup dup mul mul} {4 29 div sub 108 841 div mul} ifelse 0.964200 mul} bind
{dup 6 29 div ge {dup dup mul mul} {4 29 div sub 108 841 div mul} ifelse } bind
{dup 6 29 div ge {dup dup mul mul} {4 29 div sub 108 841 div mul} ifelse 0.824900 mul} bind
]
*/
/*
PostScript algorithms discussion.
=========================================================================================================
1D interpolation algorithm
1D interpolation (float)
------------------------
val2 = Domain * Value;
cell0 = (int) floor(val2);
cell1 = (int) ceil(val2);
rest = val2 - cell0;
y0 = LutTable[cell0] ;
y1 = LutTable[cell1] ;
y = y0 + (y1 - y0) * rest;
PostScript code Stack
================================================
{ % v
<check 0..1.0>
[array] % v tab
dup % v tab tab
length 1 sub % v tab dom
3 -1 roll % tab dom v
mul % tab val2
dup % tab val2 val2
dup % tab val2 val2 val2
floor cvi % tab val2 val2 cell0
exch % tab val2 cell0 val2
ceiling cvi % tab val2 cell0 cell1
3 index % tab val2 cell0 cell1 tab
exch % tab val2 cell0 tab cell1
get % tab val2 cell0 y1
4 -1 roll % val2 cell0 y1 tab
3 -1 roll % val2 y1 tab cell0
get % val2 y1 y0
dup % val2 y1 y0 y0
3 1 roll % val2 y0 y1 y0
sub % val2 y0 (y1-y0)
3 -1 roll % y0 (y1-y0) val2
dup % y0 (y1-y0) val2 val2
floor cvi % y0 (y1-y0) val2 floor(val2)
sub % y0 (y1-y0) rest
mul % y0 t1
add % y
65535 div % result
} bind
*/
// This struct holds the memory block currently being write
typedef struct {
_cmsStageCLutData* Pipeline;
cmsIOHANDLER* m;
int FirstComponent;
int SecondComponent;
const char* PreMaj;
const char* PostMaj;
const char* PreMin;
const char* PostMin;
int FixWhite; // Force mapping of pure white
cmsColorSpaceSignature ColorSpace; // ColorSpace of profile
} cmsPsSamplerCargo;
static int _cmsPSActualColumn = 0;
// Convert to byte
static
cmsUInt8Number Word2Byte(cmsUInt16Number w)
{
return (cmsUInt8Number) floor((cmsFloat64Number) w / 257.0 + 0.5);
}
// Convert to byte (using ICC2 notation)
/*
static
cmsUInt8Number L2Byte(cmsUInt16Number w)
{
int ww = w + 0x0080;
if (ww > 0xFFFF) return 0xFF;
return (cmsUInt8Number) ((cmsUInt16Number) (ww >> 8) & 0xFF);
}
*/
// Write a cooked byte
static
void WriteByte(cmsIOHANDLER* m, cmsUInt8Number b)
{
_cmsIOPrintf(m, "%02x", b);
_cmsPSActualColumn += 2;
if (_cmsPSActualColumn > MAXPSCOLS) {
_cmsIOPrintf(m, "\n");
_cmsPSActualColumn = 0;
}
}
// ----------------------------------------------------------------- PostScript generation
// Removes offending Carriage returns
static
char* RemoveCR(const char* txt)
{
static char Buffer[2048];
char* pt;
strncpy(Buffer, txt, 2047);
Buffer[2047] = 0;
for (pt = Buffer; *pt; pt++)
if (*pt == '\n' || *pt == '\r') *pt = ' ';
return Buffer;
}
static
void EmitHeader(cmsIOHANDLER* m, const char* Title, cmsHPROFILE hProfile)
{
time_t timer;
cmsMLU *Description, *Copyright;
char DescASCII[256], CopyrightASCII[256];
time(&timer);
Description = (cmsMLU*) cmsReadTag(hProfile, cmsSigProfileDescriptionTag);
Copyright = (cmsMLU*) cmsReadTag(hProfile, cmsSigCopyrightTag);
DescASCII[0] = DescASCII[255] = 0;
CopyrightASCII[0] = CopyrightASCII[255] = 0;
if (Description != NULL) cmsMLUgetASCII(Description, cmsNoLanguage, cmsNoCountry, DescASCII, 255);
if (Copyright != NULL) cmsMLUgetASCII(Copyright, cmsNoLanguage, cmsNoCountry, CopyrightASCII, 255);
_cmsIOPrintf(m, "%%!PS-Adobe-3.0\n");
_cmsIOPrintf(m, "%%\n");
_cmsIOPrintf(m, "%% %s\n", Title);
_cmsIOPrintf(m, "%% Source: %s\n", RemoveCR(DescASCII));
_cmsIOPrintf(m, "%% %s\n", RemoveCR(CopyrightASCII));
_cmsIOPrintf(m, "%% Created: %s", ctime(&timer)); // ctime appends a \n!!!
_cmsIOPrintf(m, "%%\n");
_cmsIOPrintf(m, "%%%%BeginResource\n");
}
// Emits White & Black point. White point is always D50, Black point is the device
// Black point adapted to D50.
static
void EmitWhiteBlackD50(cmsIOHANDLER* m, cmsCIEXYZ* BlackPoint)
{
_cmsIOPrintf(m, "/BlackPoint [%f %f %f]\n", BlackPoint -> X,
BlackPoint -> Y,
BlackPoint -> Z);
_cmsIOPrintf(m, "/WhitePoint [%f %f %f]\n", cmsD50_XYZ()->X,
cmsD50_XYZ()->Y,
cmsD50_XYZ()->Z);
}
static
void EmitRangeCheck(cmsIOHANDLER* m)
{
_cmsIOPrintf(m, "dup 0.0 lt { pop 0.0 } if "
"dup 1.0 gt { pop 1.0 } if ");
}
// Does write the intent
static
void EmitIntent(cmsIOHANDLER* m, int RenderingIntent)
{
const char *intent;
switch (RenderingIntent) {
case INTENT_PERCEPTUAL: intent = "Perceptual"; break;
case INTENT_RELATIVE_COLORIMETRIC: intent = "RelativeColorimetric"; break;
case INTENT_ABSOLUTE_COLORIMETRIC: intent = "AbsoluteColorimetric"; break;
case INTENT_SATURATION: intent = "Saturation"; break;
default: intent = "Undefined"; break;
}
_cmsIOPrintf(m, "/RenderingIntent (%s)\n", intent );
}
//
// Convert L* to Y
//
// Y = Yn*[ (L* + 16) / 116] ^ 3 if (L*) >= 6 / 29
// = Yn*( L* / 116) / 7.787 if (L*) < 6 / 29
//
/*
static
void EmitL2Y(cmsIOHANDLER* m)
{
_cmsIOPrintf(m,
"{ "
"100 mul 16 add 116 div " // (L * 100 + 16) / 116
"dup 6 29 div ge " // >= 6 / 29 ?
"{ dup dup mul mul } " // yes, ^3 and done
"{ 4 29 div sub 108 841 div mul } " // no, slope limiting
"ifelse } bind ");
}
*/
// Lab -> XYZ, see the discussion above
static
void EmitLab2XYZ(cmsIOHANDLER* m)
{
_cmsIOPrintf(m, "/RangeABC [ 0 1 0 1 0 1]\n");
_cmsIOPrintf(m, "/DecodeABC [\n");
_cmsIOPrintf(m, "{100 mul 16 add 116 div } bind\n");
_cmsIOPrintf(m, "{255 mul 128 sub 500 div } bind\n");
_cmsIOPrintf(m, "{255 mul 128 sub 200 div } bind\n");
_cmsIOPrintf(m, "]\n");
_cmsIOPrintf(m, "/MatrixABC [ 1 1 1 1 0 0 0 0 -1]\n");
_cmsIOPrintf(m, "/RangeLMN [ -0.236 1.254 0 1 -0.635 1.640 ]\n");
_cmsIOPrintf(m, "/DecodeLMN [\n");
_cmsIOPrintf(m, "{dup 6 29 div ge {dup dup mul mul} {4 29 div sub 108 841 div mul} ifelse 0.964200 mul} bind\n");
_cmsIOPrintf(m, "{dup 6 29 div ge {dup dup mul mul} {4 29 div sub 108 841 div mul} ifelse } bind\n");
_cmsIOPrintf(m, "{dup 6 29 div ge {dup dup mul mul} {4 29 div sub 108 841 div mul} ifelse 0.824900 mul} bind\n");
_cmsIOPrintf(m, "]\n");
}
// Outputs a table of words. It does use 16 bits
static
void Emit1Gamma(cmsIOHANDLER* m, cmsToneCurve* Table)
{
cmsUInt32Number i;
cmsFloat64Number gamma;
if (Table == NULL) return; // Error
if (Table ->nEntries <= 0) return; // Empty table
// Suppress whole if identity
if (cmsIsToneCurveLinear(Table)) return;
// Check if is really an exponential. If so, emit "exp"
gamma = cmsEstimateGamma(Table, 0.001);
if (gamma > 0) {
_cmsIOPrintf(m, "{ %g exp } bind ", gamma);
return;
}
_cmsIOPrintf(m, "{ ");
// Bounds check
EmitRangeCheck(m);
// Emit intepolation code
// PostScript code Stack
// =============== ========================
// v
_cmsIOPrintf(m, " [");
for (i=0; i < Table->nEntries; i++) {
_cmsIOPrintf(m, "%d ", Table->Table16[i]);
}
_cmsIOPrintf(m, "] "); // v tab
_cmsIOPrintf(m, "dup "); // v tab tab
_cmsIOPrintf(m, "length 1 sub "); // v tab dom
_cmsIOPrintf(m, "3 -1 roll "); // tab dom v
_cmsIOPrintf(m, "mul "); // tab val2
_cmsIOPrintf(m, "dup "); // tab val2 val2
_cmsIOPrintf(m, "dup "); // tab val2 val2 val2
_cmsIOPrintf(m, "floor cvi "); // tab val2 val2 cell0
_cmsIOPrintf(m, "exch "); // tab val2 cell0 val2
_cmsIOPrintf(m, "ceiling cvi "); // tab val2 cell0 cell1
_cmsIOPrintf(m, "3 index "); // tab val2 cell0 cell1 tab
_cmsIOPrintf(m, "exch "); // tab val2 cell0 tab cell1
_cmsIOPrintf(m, "get "); // tab val2 cell0 y1
_cmsIOPrintf(m, "4 -1 roll "); // val2 cell0 y1 tab
_cmsIOPrintf(m, "3 -1 roll "); // val2 y1 tab cell0
_cmsIOPrintf(m, "get "); // val2 y1 y0
_cmsIOPrintf(m, "dup "); // val2 y1 y0 y0
_cmsIOPrintf(m, "3 1 roll "); // val2 y0 y1 y0
_cmsIOPrintf(m, "sub "); // val2 y0 (y1-y0)
_cmsIOPrintf(m, "3 -1 roll "); // y0 (y1-y0) val2
_cmsIOPrintf(m, "dup "); // y0 (y1-y0) val2 val2
_cmsIOPrintf(m, "floor cvi "); // y0 (y1-y0) val2 floor(val2)
_cmsIOPrintf(m, "sub "); // y0 (y1-y0) rest
_cmsIOPrintf(m, "mul "); // y0 t1
_cmsIOPrintf(m, "add "); // y
_cmsIOPrintf(m, "65535 div "); // result
_cmsIOPrintf(m, " } bind ");
}
// Compare gamma table
static
cmsBool GammaTableEquals(cmsUInt16Number* g1, cmsUInt16Number* g2, int nEntries)
{
return memcmp(g1, g2, nEntries* sizeof(cmsUInt16Number)) == 0;
}
// Does write a set of gamma curves
static
void EmitNGamma(cmsIOHANDLER* m, int n, cmsToneCurve* g[])
{
int i;
for( i=0; i < n; i++ )
{
if (g[i] == NULL) return; // Error
if (i > 0 && GammaTableEquals(g[i-1]->Table16, g[i]->Table16, g[i]->nEntries)) {
_cmsIOPrintf(m, "dup ");
}
else {
Emit1Gamma(m, g[i]);
}
}
}
// Following code dumps a LUT onto memory stream
// This is the sampler. Intended to work in SAMPLER_INSPECT mode,
// that is, the callback will be called for each knot with
//
// In[] The grid location coordinates, normalized to 0..ffff
// Out[] The Pipeline values, normalized to 0..ffff
//
// Returning a value other than 0 does terminate the sampling process
//
// Each row contains Pipeline values for all but first component. So, I
// detect row changing by keeping a copy of last value of first
// component. -1 is used to mark begining of whole block.
static
int OutputValueSampler(register const cmsUInt16Number In[], register cmsUInt16Number Out[], register void* Cargo)
{
cmsPsSamplerCargo* sc = (cmsPsSamplerCargo*) Cargo;
cmsUInt32Number i;
if (sc -> FixWhite) {
if (In[0] == 0xFFFF) { // Only in L* = 100, ab = [-8..8]
if ((In[1] >= 0x7800 && In[1] <= 0x8800) &&
(In[2] >= 0x7800 && In[2] <= 0x8800)) {
cmsUInt16Number* Black;
cmsUInt16Number* White;
cmsUInt32Number nOutputs;
if (!_cmsEndPointsBySpace(sc ->ColorSpace, &White, &Black, &nOutputs))
return 0;
for (i=0; i < nOutputs; i++)
Out[i] = White[i];
}
}
}
// Hadle the parenthesis on rows
if (In[0] != sc ->FirstComponent) {
if (sc ->FirstComponent != -1) {
_cmsIOPrintf(sc ->m, sc ->PostMin);
sc ->SecondComponent = -1;
_cmsIOPrintf(sc ->m, sc ->PostMaj);
}
// Begin block
_cmsPSActualColumn = 0;
_cmsIOPrintf(sc ->m, sc ->PreMaj);
sc ->FirstComponent = In[0];
}
if (In[1] != sc ->SecondComponent) {
if (sc ->SecondComponent != -1) {
_cmsIOPrintf(sc ->m, sc ->PostMin);
}
_cmsIOPrintf(sc ->m, sc ->PreMin);
sc ->SecondComponent = In[1];
}
// Dump table.
for (i=0; i < sc -> Pipeline ->Params->nOutputs; i++) {
cmsUInt16Number wWordOut = Out[i];
cmsUInt8Number wByteOut; // Value as byte
// We always deal with Lab4
wByteOut = Word2Byte(wWordOut);
WriteByte(sc -> m, wByteOut);
}
return 1;
}
// Writes a Pipeline on memstream. Could be 8 or 16 bits based
static
void WriteCLUT(cmsIOHANDLER* m, cmsStage* mpe, const char* PreMaj,
const char* PostMaj,
const char* PreMin,
const char* PostMin,
int FixWhite,
cmsColorSpaceSignature ColorSpace)
{
cmsUInt32Number i;
cmsPsSamplerCargo sc;
sc.FirstComponent = -1;
sc.SecondComponent = -1;
sc.Pipeline = (_cmsStageCLutData *) mpe ->Data;
sc.m = m;
sc.PreMaj = PreMaj;
sc.PostMaj= PostMaj;
sc.PreMin = PreMin;
sc.PostMin = PostMin;
sc.FixWhite = FixWhite;
sc.ColorSpace = ColorSpace;
_cmsIOPrintf(m, "[");
for (i=0; i < sc.Pipeline->Params->nInputs; i++)
_cmsIOPrintf(m, " %d ", sc.Pipeline->Params->nSamples[i]);
_cmsIOPrintf(m, " [\n");
cmsStageSampleCLut16bit(mpe, OutputValueSampler, (void*) &sc, SAMPLER_INSPECT);
_cmsIOPrintf(m, PostMin);
_cmsIOPrintf(m, PostMaj);
_cmsIOPrintf(m, "] ");
}
// Dumps CIEBasedA Color Space Array
static
int EmitCIEBasedA(cmsIOHANDLER* m, cmsToneCurve* Curve, cmsCIEXYZ* BlackPoint)
{
_cmsIOPrintf(m, "[ /CIEBasedA\n");
_cmsIOPrintf(m, " <<\n");
_cmsIOPrintf(m, "/DecodeA ");
Emit1Gamma(m, Curve);
_cmsIOPrintf(m, " \n");
_cmsIOPrintf(m, "/MatrixA [ 0.9642 1.0000 0.8249 ]\n");
_cmsIOPrintf(m, "/RangeLMN [ 0.0 0.9642 0.0 1.0000 0.0 0.8249 ]\n");
EmitWhiteBlackD50(m, BlackPoint);
EmitIntent(m, INTENT_PERCEPTUAL);
_cmsIOPrintf(m, ">>\n");
_cmsIOPrintf(m, "]\n");
return 1;
}
// Dumps CIEBasedABC Color Space Array
static
int EmitCIEBasedABC(cmsIOHANDLER* m, cmsFloat64Number* Matrix, cmsToneCurve** CurveSet, cmsCIEXYZ* BlackPoint)
{
int i;
_cmsIOPrintf(m, "[ /CIEBasedABC\n");
_cmsIOPrintf(m, "<<\n");
_cmsIOPrintf(m, "/DecodeABC [ ");
EmitNGamma(m, 3, CurveSet);
_cmsIOPrintf(m, "]\n");
_cmsIOPrintf(m, "/MatrixABC [ " );
for( i=0; i < 3; i++ ) {
_cmsIOPrintf(m, "%.6f %.6f %.6f ", Matrix[i + 3*0],
Matrix[i + 3*1],
Matrix[i + 3*2]);
}
_cmsIOPrintf(m, "]\n");
_cmsIOPrintf(m, "/RangeLMN [ 0.0 0.9642 0.0 1.0000 0.0 0.8249 ]\n");
EmitWhiteBlackD50(m, BlackPoint);
EmitIntent(m, INTENT_PERCEPTUAL);
_cmsIOPrintf(m, ">>\n");
_cmsIOPrintf(m, "]\n");
return 1;
}
static
int EmitCIEBasedDEF(cmsIOHANDLER* m, cmsPipeline* Pipeline, int Intent, cmsCIEXYZ* BlackPoint)
{
const char* PreMaj;
const char* PostMaj;
const char* PreMin, *PostMin;
cmsStage* mpe;
mpe = Pipeline ->Elements;
switch (cmsStageInputChannels(mpe)) {
case 3:
_cmsIOPrintf(m, "[ /CIEBasedDEF\n");
PreMaj ="<";
PostMaj= ">\n";
PreMin = PostMin = "";
break;
case 4:
_cmsIOPrintf(m, "[ /CIEBasedDEFG\n");
PreMaj = "[";
PostMaj = "]\n";
PreMin = "<";
PostMin = ">\n";
break;
default:
return 0;
}
_cmsIOPrintf(m, "<<\n");
if (cmsStageType(mpe) == cmsSigCurveSetElemType) {
_cmsIOPrintf(m, "/DecodeDEF [ ");
EmitNGamma(m, cmsStageOutputChannels(mpe), _cmsStageGetPtrToCurveSet(mpe));
_cmsIOPrintf(m, "]\n");
mpe = mpe ->Next;
}
if (cmsStageType(mpe) == cmsSigCLutElemType) {
_cmsIOPrintf(m, "/Table ");
WriteCLUT(m, mpe, PreMaj, PostMaj, PreMin, PostMin, FALSE, (cmsColorSpaceSignature) 0);
_cmsIOPrintf(m, "]\n");
}
EmitLab2XYZ(m);
EmitWhiteBlackD50(m, BlackPoint);
EmitIntent(m, Intent);
_cmsIOPrintf(m, " >>\n");
_cmsIOPrintf(m, "]\n");
return 1;
}
// Generates a curve from a gray profile
static
cmsToneCurve* ExtractGray2Y(cmsContext ContextID, cmsHPROFILE hProfile, int Intent)
{
cmsToneCurve* Out = cmsBuildTabulatedToneCurve16(ContextID, 256, NULL);
cmsHPROFILE hXYZ = cmsCreateXYZProfile();
cmsHTRANSFORM xform = cmsCreateTransformTHR(ContextID, hProfile, TYPE_GRAY_8, hXYZ, TYPE_XYZ_DBL, Intent, cmsFLAGS_NOOPTIMIZE);
int i;
if (Out != NULL) {
for (i=0; i < 256; i++) {
cmsUInt8Number Gray = (cmsUInt8Number) i;
cmsCIEXYZ XYZ;
cmsDoTransform(xform, &Gray, &XYZ, 1);
Out ->Table16[i] =_cmsQuickSaturateWord(XYZ.Y * 65535.0);
}
}
cmsDeleteTransform(xform);
cmsCloseProfile(hXYZ);
return Out;
}
// Because PostScript has only 8 bits in /Table, we should use
// a more perceptually uniform space... I do choose Lab.
static
int WriteInputLUT(cmsIOHANDLER* m, cmsHPROFILE hProfile, int Intent, cmsUInt32Number dwFlags)
{
cmsHPROFILE hLab;
cmsHTRANSFORM xform;
cmsUInt32Number nChannels;
cmsUInt32Number InputFormat;
int rc;
cmsHPROFILE Profiles[2];
cmsCIEXYZ BlackPointAdaptedToD50;
// Does create a device-link based transform.
// The DeviceLink is next dumped as working CSA.
InputFormat = cmsFormatterForColorspaceOfProfile(hProfile, 2, FALSE);
nChannels = T_CHANNELS(InputFormat);
cmsDetectBlackPoint(&BlackPointAdaptedToD50, hProfile, Intent, 0);
// Adjust output to Lab4
hLab = cmsCreateLab4ProfileTHR(m ->ContextID, NULL);
Profiles[0] = hProfile;
Profiles[1] = hLab;
xform = cmsCreateMultiprofileTransform(Profiles, 2, InputFormat, TYPE_Lab_DBL, Intent, 0);
cmsCloseProfile(hLab);
if (xform == NULL) {
cmsSignalError(m ->ContextID, cmsERROR_COLORSPACE_CHECK, "Cannot create transform Profile -> Lab");
return 0;
}
// Only 1, 3 and 4 channels are allowed
switch (nChannels) {
case 1: {
cmsToneCurve* Gray2Y = ExtractGray2Y(m ->ContextID, hProfile, Intent);
EmitCIEBasedA(m, Gray2Y, &BlackPointAdaptedToD50);
cmsFreeToneCurve(Gray2Y);
}
break;
case 3:
case 4: {
cmsUInt32Number OutFrm = TYPE_Lab_16;
cmsPipeline* DeviceLink;
_cmsTRANSFORM* v = (_cmsTRANSFORM*) xform;
DeviceLink = cmsPipelineDup(v ->Lut);
if (DeviceLink == NULL) return 0;
dwFlags |= cmsFLAGS_FORCE_CLUT;
_cmsOptimizePipeline(&DeviceLink, Intent, &InputFormat, &OutFrm, &dwFlags);
rc = EmitCIEBasedDEF(m, DeviceLink, Intent, &BlackPointAdaptedToD50);
cmsPipelineFree(DeviceLink);
if (rc == 0) return 0;
}
break;
default:
cmsSignalError(m ->ContextID, cmsERROR_COLORSPACE_CHECK, "Only 3, 4 channels supported for CSA. This profile has %d channels.", nChannels);
return 0;
}
cmsDeleteTransform(xform);
return 1;
}
static
cmsFloat64Number* GetPtrToMatrix(const cmsStage* mpe)
{
_cmsStageMatrixData* Data = (_cmsStageMatrixData*) mpe ->Data;
return Data -> Double;
}
// Does create CSA based on matrix-shaper. Allowed types are gray and RGB based
static
int WriteInputMatrixShaper(cmsIOHANDLER* m, cmsHPROFILE hProfile, cmsStage* Matrix, cmsStage* Shaper)
{
cmsColorSpaceSignature ColorSpace;
int rc;
cmsCIEXYZ BlackPointAdaptedToD50;
ColorSpace = cmsGetColorSpace(hProfile);
cmsDetectBlackPoint(&BlackPointAdaptedToD50, hProfile, INTENT_RELATIVE_COLORIMETRIC, 0);
if (ColorSpace == cmsSigGrayData) {
cmsToneCurve** ShaperCurve = _cmsStageGetPtrToCurveSet(Shaper);
rc = EmitCIEBasedA(m, ShaperCurve[0], &BlackPointAdaptedToD50);
}
else
if (ColorSpace == cmsSigRgbData) {
cmsMAT3 Mat;
int i, j;
memmove(&Mat, GetPtrToMatrix(Matrix), sizeof(Mat));
for (i=0; i < 3; i++)
for (j=0; j < 3; j++)
Mat.v[i].n[j] *= MAX_ENCODEABLE_XYZ;
rc = EmitCIEBasedABC(m, (cmsFloat64Number *) &Mat,
_cmsStageGetPtrToCurveSet(Shaper),
&BlackPointAdaptedToD50);
}
else {
cmsSignalError(m ->ContextID, cmsERROR_COLORSPACE_CHECK, "Profile is not suitable for CSA. Unsupported colorspace.");
return 0;
}
return rc;
}
// Creates a PostScript color list from a named profile data.
// This is a HP extension, and it works in Lab instead of XYZ
static
int WriteNamedColorCSA(cmsIOHANDLER* m, cmsHPROFILE hNamedColor, int Intent)
{
cmsHTRANSFORM xform;
cmsHPROFILE hLab;
int i, nColors;
char ColorName[32];
cmsNAMEDCOLORLIST* NamedColorList;
hLab = cmsCreateLab4ProfileTHR(m ->ContextID, NULL);
xform = cmsCreateTransform(hNamedColor, TYPE_NAMED_COLOR_INDEX, hLab, TYPE_Lab_DBL, Intent, 0);
if (xform == NULL) return 0;
NamedColorList = cmsGetNamedColorList(xform);
if (NamedColorList == NULL) return 0;
_cmsIOPrintf(m, "<<\n");
_cmsIOPrintf(m, "(colorlistcomment) (%s)\n", "Named color CSA");
_cmsIOPrintf(m, "(Prefix) [ (Pantone ) (PANTONE ) ]\n");
_cmsIOPrintf(m, "(Suffix) [ ( CV) ( CVC) ( C) ]\n");
nColors = cmsNamedColorCount(NamedColorList);
for (i=0; i < nColors; i++) {
cmsUInt16Number In[1];
cmsCIELab Lab;
In[0] = (cmsUInt16Number) i;
if (!cmsNamedColorInfo(NamedColorList, i, ColorName, NULL, NULL, NULL, NULL))
continue;
cmsDoTransform(xform, In, &Lab, 1);
_cmsIOPrintf(m, " (%s) [ %.3f %.3f %.3f ]\n", ColorName, Lab.L, Lab.a, Lab.b);
}
_cmsIOPrintf(m, ">>\n");
cmsDeleteTransform(xform);
cmsCloseProfile(hLab);
return 1;
}
// Does create a Color Space Array on XYZ colorspace for PostScript usage
static
cmsUInt32Number GenerateCSA(cmsContext ContextID,
cmsHPROFILE hProfile,
cmsUInt32Number Intent,
cmsUInt32Number dwFlags,
cmsIOHANDLER* mem)
{
cmsUInt32Number dwBytesUsed;
cmsPipeline* lut = NULL;
cmsStage* Matrix, *Shaper;
// Is a named color profile?
if (cmsGetDeviceClass(hProfile) == cmsSigNamedColorClass) {
if (!WriteNamedColorCSA(mem, hProfile, Intent)) goto Error;
}
else {
// Any profile class are allowed (including devicelink), but
// output (PCS) colorspace must be XYZ or Lab
cmsColorSpaceSignature ColorSpace = cmsGetPCS(hProfile);
if (ColorSpace != cmsSigXYZData &&
ColorSpace != cmsSigLabData) {
cmsSignalError(ContextID, cmsERROR_COLORSPACE_CHECK, "Invalid output color space");
goto Error;
}
// Read the lut with all necessary conversion stages
lut = _cmsReadInputLUT(hProfile, Intent);
if (lut == NULL) goto Error;
// Tone curves + matrix can be implemented without any LUT
if (cmsPipelineCheckAndRetreiveStages(lut, 2, cmsSigCurveSetElemType, cmsSigMatrixElemType, &Shaper, &Matrix)) {
if (!WriteInputMatrixShaper(mem, hProfile, Matrix, Shaper)) goto Error;
}
else {
// We need a LUT for the rest
if (!WriteInputLUT(mem, hProfile, Intent, dwFlags)) goto Error;
}
}
// Done, keep memory usage
dwBytesUsed = mem ->UsedSpace;
// Get rid of LUT
if (lut != NULL) cmsPipelineFree(lut);
// Finally, return used byte count
return dwBytesUsed;
Error:
if (lut != NULL) cmsPipelineFree(lut);
return 0;
}
// ------------------------------------------------------ Color Rendering Dictionary (CRD)
/*
Black point compensation plus chromatic adaptation:
Step 1 - Chromatic adaptation
=============================
WPout
X = ------- PQR
Wpin
Step 2 - Black point compensation
=================================
(WPout - BPout)*X - WPout*(BPin - BPout)
out = ---------------------------------------
WPout - BPin
Algorithm discussion
====================
TransformPQR(WPin, BPin, WPout, BPout, PQR)
Wpin,etc= { Xws Yws Zws Pws Qws Rws }
Algorithm Stack 0...n
===========================================================
PQR BPout WPout BPin WPin
4 index 3 get WPin PQR BPout WPout BPin WPin
div (PQR/WPin) BPout WPout BPin WPin
2 index 3 get WPout (PQR/WPin) BPout WPout BPin WPin
mult WPout*(PQR/WPin) BPout WPout BPin WPin
2 index 3 get WPout WPout*(PQR/WPin) BPout WPout BPin WPin
2 index 3 get BPout WPout WPout*(PQR/WPin) BPout WPout BPin WPin
sub (WPout-BPout) WPout*(PQR/WPin) BPout WPout BPin WPin
mult (WPout-BPout)* WPout*(PQR/WPin) BPout WPout BPin WPin
2 index 3 get WPout (BPout-WPout)* WPout*(PQR/WPin) BPout WPout BPin WPin
4 index 3 get BPin WPout (BPout-WPout)* WPout*(PQR/WPin) BPout WPout BPin WPin
3 index 3 get BPout BPin WPout (BPout-WPout)* WPout*(PQR/WPin) BPout WPout BPin WPin
sub (BPin-BPout) WPout (BPout-WPout)* WPout*(PQR/WPin) BPout WPout BPin WPin
mult (BPin-BPout)*WPout (BPout-WPout)* WPout*(PQR/WPin) BPout WPout BPin WPin
sub (BPout-WPout)* WPout*(PQR/WPin)-(BPin-BPout)*WPout BPout WPout BPin WPin
3 index 3 get BPin (BPout-WPout)* WPout*(PQR/WPin)-(BPin-BPout)*WPout BPout WPout BPin WPin
3 index 3 get WPout BPin (BPout-WPout)* WPout*(PQR/WPin)-(BPin-BPout)*WPout BPout WPout BPin WPin
exch
sub (WPout-BPin) (BPout-WPout)* WPout*(PQR/WPin)-(BPin-BPout)*WPout BPout WPout BPin WPin
div
exch pop
exch pop
exch pop
exch pop
*/
static
void EmitPQRStage(cmsIOHANDLER* m, cmsHPROFILE hProfile, int DoBPC, int lIsAbsolute)
{
if (lIsAbsolute) {
// For absolute colorimetric intent, encode back to relative
// and generate a relative Pipeline
// Relative encoding is obtained across XYZpcs*(D50/WhitePoint)
cmsCIEXYZ White;
_cmsReadMediaWhitePoint(&White, hProfile);
_cmsIOPrintf(m,"/MatrixPQR [1 0 0 0 1 0 0 0 1 ]\n");
_cmsIOPrintf(m,"/RangePQR [ -0.5 2 -0.5 2 -0.5 2 ]\n");
_cmsIOPrintf(m, "%% Absolute colorimetric -- encode to relative to maximize LUT usage\n"
"/TransformPQR [\n"
"{0.9642 mul %g div exch pop exch pop exch pop exch pop} bind\n"
"{1.0000 mul %g div exch pop exch pop exch pop exch pop} bind\n"
"{0.8249 mul %g div exch pop exch pop exch pop exch pop} bind\n]\n",
White.X, White.Y, White.Z);
return;
}
_cmsIOPrintf(m,"%% Bradford Cone Space\n"
"/MatrixPQR [0.8951 -0.7502 0.0389 0.2664 1.7135 -0.0685 -0.1614 0.0367 1.0296 ] \n");
_cmsIOPrintf(m, "/RangePQR [ -0.5 2 -0.5 2 -0.5 2 ]\n");
// No BPC
if (!DoBPC) {
_cmsIOPrintf(m, "%% VonKries-like transform in Bradford Cone Space\n"
"/TransformPQR [\n"
"{exch pop exch 3 get mul exch pop exch 3 get div} bind\n"
"{exch pop exch 4 get mul exch pop exch 4 get div} bind\n"
"{exch pop exch 5 get mul exch pop exch 5 get div} bind\n]\n");
} else {
// BPC
_cmsIOPrintf(m, "%% VonKries-like transform in Bradford Cone Space plus BPC\n"
"/TransformPQR [\n");
_cmsIOPrintf(m, "{4 index 3 get div 2 index 3 get mul "
"2 index 3 get 2 index 3 get sub mul "
"2 index 3 get 4 index 3 get 3 index 3 get sub mul sub "
"3 index 3 get 3 index 3 get exch sub div "
"exch pop exch pop exch pop exch pop } bind\n");
_cmsIOPrintf(m, "{4 index 4 get div 2 index 4 get mul "
"2 index 4 get 2 index 4 get sub mul "
"2 index 4 get 4 index 4 get 3 index 4 get sub mul sub "
"3 index 4 get 3 index 4 get exch sub div "
"exch pop exch pop exch pop exch pop } bind\n");
_cmsIOPrintf(m, "{4 index 5 get div 2 index 5 get mul "
"2 index 5 get 2 index 5 get sub mul "
"2 index 5 get 4 index 5 get 3 index 5 get sub mul sub "
"3 index 5 get 3 index 5 get exch sub div "
"exch pop exch pop exch pop exch pop } bind\n]\n");
}
}
static
void EmitXYZ2Lab(cmsIOHANDLER* m)
{
_cmsIOPrintf(m, "/RangeLMN [ -0.635 2.0 0 2 -0.635 2.0 ]\n");
_cmsIOPrintf(m, "/EncodeLMN [\n");
_cmsIOPrintf(m, "{ 0.964200 div dup 0.008856 le {7.787 mul 16 116 div add}{1 3 div exp} ifelse } bind\n");
_cmsIOPrintf(m, "{ 1.000000 div dup 0.008856 le {7.787 mul 16 116 div add}{1 3 div exp} ifelse } bind\n");
_cmsIOPrintf(m, "{ 0.824900 div dup 0.008856 le {7.787 mul 16 116 div add}{1 3 div exp} ifelse } bind\n");
_cmsIOPrintf(m, "]\n");
_cmsIOPrintf(m, "/MatrixABC [ 0 1 0 1 -1 1 0 0 -1 ]\n");
_cmsIOPrintf(m, "/EncodeABC [\n");
_cmsIOPrintf(m, "{ 116 mul 16 sub 100 div } bind\n");
_cmsIOPrintf(m, "{ 500 mul 128 add 256 div } bind\n");
_cmsIOPrintf(m, "{ 200 mul 128 add 256 div } bind\n");
_cmsIOPrintf(m, "]\n");
}
// Due to impedance mismatch between XYZ and almost all RGB and CMYK spaces
// I choose to dump LUTS in Lab instead of XYZ. There is still a lot of wasted
// space on 3D CLUT, but since space seems not to be a problem here, 33 points
// would give a reasonable accurancy. Note also that CRD tables must operate in
// 8 bits.
static
int WriteOutputLUT(cmsIOHANDLER* m, cmsHPROFILE hProfile, int Intent, cmsUInt32Number dwFlags)
{
cmsHPROFILE hLab;
cmsHTRANSFORM xform;
int i, nChannels;
cmsUInt32Number OutputFormat;
_cmsTRANSFORM* v;
cmsPipeline* DeviceLink;
cmsHPROFILE Profiles[3];
cmsCIEXYZ BlackPointAdaptedToD50;
cmsBool lDoBPC = (dwFlags & cmsFLAGS_BLACKPOINTCOMPENSATION);
cmsBool lFixWhite = !(dwFlags & cmsFLAGS_NOWHITEONWHITEFIXUP);
cmsUInt32Number InFrm = TYPE_Lab_16;
int RelativeEncodingIntent;
cmsColorSpaceSignature ColorSpace;
hLab = cmsCreateLab4ProfileTHR(m ->ContextID, NULL);
if (hLab == NULL) return 0;
OutputFormat = cmsFormatterForColorspaceOfProfile(hProfile, 2, FALSE);
nChannels = T_CHANNELS(OutputFormat);
ColorSpace = cmsGetColorSpace(hProfile);
// For absolute colorimetric, the LUT is encoded as relative in order to preserve precision.
RelativeEncodingIntent = Intent;
if (RelativeEncodingIntent == INTENT_ABSOLUTE_COLORIMETRIC)
RelativeEncodingIntent = INTENT_RELATIVE_COLORIMETRIC;
// Use V4 Lab always
Profiles[0] = hLab;
Profiles[1] = hProfile;
xform = cmsCreateMultiprofileTransformTHR(m ->ContextID,
Profiles, 2, TYPE_Lab_DBL,
OutputFormat, RelativeEncodingIntent, 0);
cmsCloseProfile(hLab);
if (xform == NULL) {
cmsSignalError(m ->ContextID, cmsERROR_COLORSPACE_CHECK, "Cannot create transform Lab -> Profile in CRD creation");
return 0;
}
// Get a copy of the internal devicelink
v = (_cmsTRANSFORM*) xform;
DeviceLink = cmsPipelineDup(v ->Lut);
if (DeviceLink == NULL) return 0;
// We need a CLUT
dwFlags |= cmsFLAGS_FORCE_CLUT;
_cmsOptimizePipeline(&DeviceLink, RelativeEncodingIntent, &InFrm, &OutputFormat, &dwFlags);
_cmsIOPrintf(m, "<<\n");
_cmsIOPrintf(m, "/ColorRenderingType 1\n");
cmsDetectBlackPoint(&BlackPointAdaptedToD50, hProfile, Intent, 0);
// Emit headers, etc.
EmitWhiteBlackD50(m, &BlackPointAdaptedToD50);
EmitPQRStage(m, hProfile, lDoBPC, Intent == INTENT_ABSOLUTE_COLORIMETRIC);
EmitXYZ2Lab(m);
// FIXUP: map Lab (100, 0, 0) to perfect white, because the particular encoding for Lab
// does map a=b=0 not falling into any specific node. Since range a,b goes -128..127,
// zero is slightly moved towards right, so assure next node (in L=100 slice) is mapped to
// zero. This would sacrifice a bit of highlights, but failure to do so would cause
// scum dot. Ouch.
if (Intent == INTENT_ABSOLUTE_COLORIMETRIC)
lFixWhite = FALSE;
_cmsIOPrintf(m, "/RenderTable ");
WriteCLUT(m, cmsPipelineGetPtrToFirstStage(DeviceLink), "<", ">\n", "", "", lFixWhite, ColorSpace);
_cmsIOPrintf(m, " %d {} bind ", nChannels);
for (i=1; i < nChannels; i++)
_cmsIOPrintf(m, "dup ");
_cmsIOPrintf(m, "]\n");
EmitIntent(m, Intent);
_cmsIOPrintf(m, ">>\n");
if (!(dwFlags & cmsFLAGS_NODEFAULTRESOURCEDEF)) {
_cmsIOPrintf(m, "/Current exch /ColorRendering defineresource pop\n");
}
cmsPipelineFree(DeviceLink);
cmsDeleteTransform(xform);
return 1;
}
// Builds a ASCII string containing colorant list in 0..1.0 range
static
void BuildColorantList(char *Colorant, int nColorant, cmsUInt16Number Out[])
{
char Buff[32];
int j;
Colorant[0] = 0;
if (nColorant > cmsMAXCHANNELS)
nColorant = cmsMAXCHANNELS;
for (j=0; j < nColorant; j++) {
sprintf(Buff, "%.3f", Out[j] / 65535.0);
strcat(Colorant, Buff);
if (j < nColorant -1)
strcat(Colorant, " ");
}
}
// Creates a PostScript color list from a named profile data.
// This is a HP extension.
static
int WriteNamedColorCRD(cmsIOHANDLER* m, cmsHPROFILE hNamedColor, int Intent, cmsUInt32Number dwFlags)
{
cmsHTRANSFORM xform;
int i, nColors, nColorant;
cmsUInt32Number OutputFormat;
char ColorName[32];
char Colorant[128];
cmsNAMEDCOLORLIST* NamedColorList;
OutputFormat = cmsFormatterForColorspaceOfProfile(hNamedColor, 2, FALSE);
nColorant = T_CHANNELS(OutputFormat);
xform = cmsCreateTransform(hNamedColor, TYPE_NAMED_COLOR_INDEX, NULL, OutputFormat, Intent, dwFlags);
if (xform == NULL) return 0;
NamedColorList = cmsGetNamedColorList(xform);
if (NamedColorList == NULL) return 0;
_cmsIOPrintf(m, "<<\n");
_cmsIOPrintf(m, "(colorlistcomment) (%s) \n", "Named profile");
_cmsIOPrintf(m, "(Prefix) [ (Pantone ) (PANTONE ) ]\n");
_cmsIOPrintf(m, "(Suffix) [ ( CV) ( CVC) ( C) ]\n");
nColors = cmsNamedColorCount(NamedColorList);
for (i=0; i < nColors; i++) {
cmsUInt16Number In[1];
cmsUInt16Number Out[cmsMAXCHANNELS];
In[0] = (cmsUInt16Number) i;
if (!cmsNamedColorInfo(NamedColorList, i, ColorName, NULL, NULL, NULL, NULL))
continue;
cmsDoTransform(xform, In, Out, 1);
BuildColorantList(Colorant, nColorant, Out);
_cmsIOPrintf(m, " (%s) [ %s ]\n", ColorName, Colorant);
}
_cmsIOPrintf(m, " >>");
if (!(dwFlags & cmsFLAGS_NODEFAULTRESOURCEDEF)) {
_cmsIOPrintf(m, " /Current exch /HPSpotTable defineresource pop\n");
}
cmsDeleteTransform(xform);
return 1;
}
// This one does create a Color Rendering Dictionary.
// CRD are always LUT-Based, no matter if profile is
// implemented as matrix-shaper.
static
cmsUInt32Number GenerateCRD(cmsContext ContextID,
cmsHPROFILE hProfile,
cmsUInt32Number Intent, cmsUInt32Number dwFlags,
cmsIOHANDLER* mem)
{
cmsUInt32Number dwBytesUsed;
if (!(dwFlags & cmsFLAGS_NODEFAULTRESOURCEDEF)) {
EmitHeader(mem, "Color Rendering Dictionary (CRD)", hProfile);
}
// Is a named color profile?
if (cmsGetDeviceClass(hProfile) == cmsSigNamedColorClass) {
if (!WriteNamedColorCRD(mem, hProfile, Intent, dwFlags)) {
return 0;
}
}
else {
// CRD are always implemented as LUT
if (!WriteOutputLUT(mem, hProfile, Intent, dwFlags)) {
return 0;
}
}
if (!(dwFlags & cmsFLAGS_NODEFAULTRESOURCEDEF)) {
_cmsIOPrintf(mem, "%%%%EndResource\n");
_cmsIOPrintf(mem, "\n%% CRD End\n");
}
// Done, keep memory usage
dwBytesUsed = mem ->UsedSpace;
// Finally, return used byte count
return dwBytesUsed;
cmsUNUSED_PARAMETER(ContextID);
}
cmsUInt32Number CMSEXPORT cmsGetPostScriptColorResource(cmsContext ContextID,
cmsPSResourceType Type,
cmsHPROFILE hProfile,
cmsUInt32Number Intent,
cmsUInt32Number dwFlags,
cmsIOHANDLER* io)
{
cmsUInt32Number rc;
switch (Type) {
case cmsPS_RESOURCE_CSA:
rc = GenerateCSA(ContextID, hProfile, Intent, dwFlags, io);
break;
default:
case cmsPS_RESOURCE_CRD:
rc = GenerateCRD(ContextID, hProfile, Intent, dwFlags, io);
break;
}
return rc;
}
cmsUInt32Number CMSEXPORT cmsGetPostScriptCRD(cmsContext ContextID,
cmsHPROFILE hProfile,
cmsUInt32Number Intent, cmsUInt32Number dwFlags,
void* Buffer, cmsUInt32Number dwBufferLen)
{
cmsIOHANDLER* mem;
cmsUInt32Number dwBytesUsed;
// Set up the serialization engine
if (Buffer == NULL)
mem = cmsOpenIOhandlerFromNULL(ContextID);
else
mem = cmsOpenIOhandlerFromMem(ContextID, Buffer, dwBufferLen, "w");
if (!mem) return 0;
dwBytesUsed = cmsGetPostScriptColorResource(ContextID, cmsPS_RESOURCE_CRD, hProfile, Intent, dwFlags, mem);
// Get rid of memory stream
cmsCloseIOhandler(mem);
return dwBytesUsed;
}
// Does create a Color Space Array on XYZ colorspace for PostScript usage
cmsUInt32Number CMSEXPORT cmsGetPostScriptCSA(cmsContext ContextID,
cmsHPROFILE hProfile,
cmsUInt32Number Intent,
cmsUInt32Number dwFlags,
void* Buffer,
cmsUInt32Number dwBufferLen)
{
cmsIOHANDLER* mem;
cmsUInt32Number dwBytesUsed;
if (Buffer == NULL)
mem = cmsOpenIOhandlerFromNULL(ContextID);
else
mem = cmsOpenIOhandlerFromMem(ContextID, Buffer, dwBufferLen, "w");
if (!mem) return 0;
dwBytesUsed = cmsGetPostScriptColorResource(ContextID, cmsPS_RESOURCE_CSA, hProfile, Intent, dwFlags, mem);
// Get rid of memory stream
cmsCloseIOhandler(mem);
return dwBytesUsed;
}
|
50 | ./little-cms/src/cmsopt.c |
//---------------------------------------------------------------------------------
//
// Little Color Management System
// Copyright (c) 1998-2011 Marti Maria Saguer
//
// Permission is hereby granted, free of charge, to any person obtaining
// a copy of this software and associated documentation files (the "Software"),
// to deal in the Software without restriction, including without limitation
// the rights to use, copy, modify, merge, publish, distribute, sublicense,
// and/or sell copies of the Software, and to permit persons to whom the Software
// is furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO
// THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
// LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
// OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
// WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
//
//---------------------------------------------------------------------------------
//
#include "lcms2_internal.h"
//----------------------------------------------------------------------------------
// Optimization for 8 bits, Shaper-CLUT (3 inputs only)
typedef struct {
cmsContext ContextID;
const cmsInterpParams* p; // Tetrahedrical interpolation parameters. This is a not-owned pointer.
cmsUInt16Number rx[256], ry[256], rz[256];
cmsUInt32Number X0[256], Y0[256], Z0[256]; // Precomputed nodes and offsets for 8-bit input data
} Prelin8Data;
// Generic optimization for 16 bits Shaper-CLUT-Shaper (any inputs)
typedef struct {
cmsContext ContextID;
// Number of channels
int nInputs;
int nOutputs;
_cmsInterpFn16 EvalCurveIn16[MAX_INPUT_DIMENSIONS]; // The maximum number of input channels is known in advance
cmsInterpParams* ParamsCurveIn16[MAX_INPUT_DIMENSIONS];
_cmsInterpFn16 EvalCLUT; // The evaluator for 3D grid
const cmsInterpParams* CLUTparams; // (not-owned pointer)
_cmsInterpFn16* EvalCurveOut16; // Points to an array of curve evaluators in 16 bits (not-owned pointer)
cmsInterpParams** ParamsCurveOut16; // Points to an array of references to interpolation params (not-owned pointer)
} Prelin16Data;
// Optimization for matrix-shaper in 8 bits. Numbers are operated in n.14 signed, tables are stored in 1.14 fixed
typedef cmsInt32Number cmsS1Fixed14Number; // Note that this may hold more than 16 bits!
#define DOUBLE_TO_1FIXED14(x) ((cmsS1Fixed14Number) floor((x) * 16384.0 + 0.5))
typedef struct {
cmsContext ContextID;
cmsS1Fixed14Number Shaper1R[256]; // from 0..255 to 1.14 (0.0...1.0)
cmsS1Fixed14Number Shaper1G[256];
cmsS1Fixed14Number Shaper1B[256];
cmsS1Fixed14Number Mat[3][3]; // n.14 to n.14 (needs a saturation after that)
cmsS1Fixed14Number Off[3];
cmsUInt16Number Shaper2R[16385]; // 1.14 to 0..255
cmsUInt16Number Shaper2G[16385];
cmsUInt16Number Shaper2B[16385];
} MatShaper8Data;
// Curves, optimization is shared between 8 and 16 bits
typedef struct {
cmsContext ContextID;
int nCurves; // Number of curves
int nElements; // Elements in curves
cmsUInt16Number** Curves; // Points to a dynamically allocated array
} Curves16Data;
// Simple optimizations ----------------------------------------------------------------------------------------------------------
// Remove an element in linked chain
static
void _RemoveElement(cmsStage** head)
{
cmsStage* mpe = *head;
cmsStage* next = mpe ->Next;
*head = next;
cmsStageFree(mpe);
}
// Remove all identities in chain. Note that pt actually is a double pointer to the element that holds the pointer.
static
cmsBool _Remove1Op(cmsPipeline* Lut, cmsStageSignature UnaryOp)
{
cmsStage** pt = &Lut ->Elements;
cmsBool AnyOpt = FALSE;
while (*pt != NULL) {
if ((*pt) ->Implements == UnaryOp) {
_RemoveElement(pt);
AnyOpt = TRUE;
}
else
pt = &((*pt) -> Next);
}
return AnyOpt;
}
// Same, but only if two adjacent elements are found
static
cmsBool _Remove2Op(cmsPipeline* Lut, cmsStageSignature Op1, cmsStageSignature Op2)
{
cmsStage** pt1;
cmsStage** pt2;
cmsBool AnyOpt = FALSE;
pt1 = &Lut ->Elements;
if (*pt1 == NULL) return AnyOpt;
while (*pt1 != NULL) {
pt2 = &((*pt1) -> Next);
if (*pt2 == NULL) return AnyOpt;
if ((*pt1) ->Implements == Op1 && (*pt2) ->Implements == Op2) {
_RemoveElement(pt2);
_RemoveElement(pt1);
AnyOpt = TRUE;
}
else
pt1 = &((*pt1) -> Next);
}
return AnyOpt;
}
// Preoptimize just gets rif of no-ops coming paired. Conversion from v2 to v4 followed
// by a v4 to v2 and vice-versa. The elements are then discarded.
static
cmsBool PreOptimize(cmsPipeline* Lut)
{
cmsBool AnyOpt = FALSE, Opt;
do {
Opt = FALSE;
// Remove all identities
Opt |= _Remove1Op(Lut, cmsSigIdentityElemType);
// Remove XYZ2Lab followed by Lab2XYZ
Opt |= _Remove2Op(Lut, cmsSigXYZ2LabElemType, cmsSigLab2XYZElemType);
// Remove Lab2XYZ followed by XYZ2Lab
Opt |= _Remove2Op(Lut, cmsSigLab2XYZElemType, cmsSigXYZ2LabElemType);
// Remove V4 to V2 followed by V2 to V4
Opt |= _Remove2Op(Lut, cmsSigLabV4toV2, cmsSigLabV2toV4);
// Remove V2 to V4 followed by V4 to V2
Opt |= _Remove2Op(Lut, cmsSigLabV2toV4, cmsSigLabV4toV2);
// Remove float pcs Lab conversions
Opt |= _Remove2Op(Lut, cmsSigLab2FloatPCS, cmsSigFloatPCS2Lab);
// Remove float pcs Lab conversions
Opt |= _Remove2Op(Lut, cmsSigXYZ2FloatPCS, cmsSigFloatPCS2XYZ);
if (Opt) AnyOpt = TRUE;
} while (Opt);
return AnyOpt;
}
static
void Eval16nop1D(register const cmsUInt16Number Input[],
register cmsUInt16Number Output[],
register const struct _cms_interp_struc* p)
{
Output[0] = Input[0];
cmsUNUSED_PARAMETER(p);
}
static
void PrelinEval16(register const cmsUInt16Number Input[],
register cmsUInt16Number Output[],
register const void* D)
{
Prelin16Data* p16 = (Prelin16Data*) D;
cmsUInt16Number StageABC[MAX_INPUT_DIMENSIONS];
cmsUInt16Number StageDEF[cmsMAXCHANNELS];
int i;
for (i=0; i < p16 ->nInputs; i++) {
p16 ->EvalCurveIn16[i](&Input[i], &StageABC[i], p16 ->ParamsCurveIn16[i]);
}
p16 ->EvalCLUT(StageABC, StageDEF, p16 ->CLUTparams);
for (i=0; i < p16 ->nOutputs; i++) {
p16 ->EvalCurveOut16[i](&StageDEF[i], &Output[i], p16 ->ParamsCurveOut16[i]);
}
}
static
void PrelinOpt16free(cmsContext ContextID, void* ptr)
{
Prelin16Data* p16 = (Prelin16Data*) ptr;
_cmsFree(ContextID, p16 ->EvalCurveOut16);
_cmsFree(ContextID, p16 ->ParamsCurveOut16);
_cmsFree(ContextID, p16);
}
static
void* Prelin16dup(cmsContext ContextID, const void* ptr)
{
Prelin16Data* p16 = (Prelin16Data*) ptr;
Prelin16Data* Duped = _cmsDupMem(ContextID, p16, sizeof(Prelin16Data));
if (Duped == NULL) return NULL;
Duped ->EvalCurveOut16 = _cmsDupMem(ContextID, p16 ->EvalCurveOut16, p16 ->nOutputs * sizeof(_cmsInterpFn16));
Duped ->ParamsCurveOut16 = _cmsDupMem(ContextID, p16 ->ParamsCurveOut16, p16 ->nOutputs * sizeof(cmsInterpParams* ));
return Duped;
}
static
Prelin16Data* PrelinOpt16alloc(cmsContext ContextID,
const cmsInterpParams* ColorMap,
int nInputs, cmsToneCurve** In,
int nOutputs, cmsToneCurve** Out )
{
int i;
Prelin16Data* p16 = _cmsMallocZero(ContextID, sizeof(Prelin16Data));
if (p16 == NULL) return NULL;
p16 ->nInputs = nInputs;
p16 -> nOutputs = nOutputs;
for (i=0; i < nInputs; i++) {
if (In == NULL) {
p16 -> ParamsCurveIn16[i] = NULL;
p16 -> EvalCurveIn16[i] = Eval16nop1D;
}
else {
p16 -> ParamsCurveIn16[i] = In[i] ->InterpParams;
p16 -> EvalCurveIn16[i] = p16 ->ParamsCurveIn16[i]->Interpolation.Lerp16;
}
}
p16 ->CLUTparams = ColorMap;
p16 ->EvalCLUT = ColorMap ->Interpolation.Lerp16;
p16 -> EvalCurveOut16 = (_cmsInterpFn16*) _cmsCalloc(ContextID, nOutputs, sizeof(_cmsInterpFn16));
p16 -> ParamsCurveOut16 = (cmsInterpParams**) _cmsCalloc(ContextID, nOutputs, sizeof(cmsInterpParams* ));
for (i=0; i < nOutputs; i++) {
if (Out == NULL) {
p16 ->ParamsCurveOut16[i] = NULL;
p16 -> EvalCurveOut16[i] = Eval16nop1D;
}
else {
p16 ->ParamsCurveOut16[i] = Out[i] ->InterpParams;
p16 -> EvalCurveOut16[i] = p16 ->ParamsCurveOut16[i]->Interpolation.Lerp16;
}
}
return p16;
}
// Resampling ---------------------------------------------------------------------------------
#define PRELINEARIZATION_POINTS 4096
// Sampler implemented by another LUT. This is a clean way to precalculate the devicelink 3D CLUT for
// almost any transform. We use floating point precision and then convert from floating point to 16 bits.
static
int XFormSampler16(register const cmsUInt16Number In[], register cmsUInt16Number Out[], register void* Cargo)
{
cmsPipeline* Lut = (cmsPipeline*) Cargo;
cmsFloat32Number InFloat[cmsMAXCHANNELS], OutFloat[cmsMAXCHANNELS];
cmsUInt32Number i;
_cmsAssert(Lut -> InputChannels < cmsMAXCHANNELS);
_cmsAssert(Lut -> OutputChannels < cmsMAXCHANNELS);
// From 16 bit to floating point
for (i=0; i < Lut ->InputChannels; i++)
InFloat[i] = (cmsFloat32Number) (In[i] / 65535.0);
// Evaluate in floating point
cmsPipelineEvalFloat(InFloat, OutFloat, Lut);
// Back to 16 bits representation
for (i=0; i < Lut ->OutputChannels; i++)
Out[i] = _cmsQuickSaturateWord(OutFloat[i] * 65535.0);
// Always succeed
return TRUE;
}
// Try to see if the curves of a given MPE are linear
static
cmsBool AllCurvesAreLinear(cmsStage* mpe)
{
cmsToneCurve** Curves;
cmsUInt32Number i, n;
Curves = _cmsStageGetPtrToCurveSet(mpe);
if (Curves == NULL) return FALSE;
n = cmsStageOutputChannels(mpe);
for (i=0; i < n; i++) {
if (!cmsIsToneCurveLinear(Curves[i])) return FALSE;
}
return TRUE;
}
// This function replaces a specific node placed in "At" by the "Value" numbers. Its purpose
// is to fix scum dot on broken profiles/transforms. Works on 1, 3 and 4 channels
static
cmsBool PatchLUT(cmsStage* CLUT, cmsUInt16Number At[], cmsUInt16Number Value[],
int nChannelsOut, int nChannelsIn)
{
_cmsStageCLutData* Grid = (_cmsStageCLutData*) CLUT ->Data;
cmsInterpParams* p16 = Grid ->Params;
cmsFloat64Number px, py, pz, pw;
int x0, y0, z0, w0;
int i, index;
if (CLUT -> Type != cmsSigCLutElemType) {
cmsSignalError(CLUT->ContextID, cmsERROR_INTERNAL, "(internal) Attempt to PatchLUT on non-lut stage");
return FALSE;
}
if (nChannelsIn == 4) {
px = ((cmsFloat64Number) At[0] * (p16->Domain[0])) / 65535.0;
py = ((cmsFloat64Number) At[1] * (p16->Domain[1])) / 65535.0;
pz = ((cmsFloat64Number) At[2] * (p16->Domain[2])) / 65535.0;
pw = ((cmsFloat64Number) At[3] * (p16->Domain[3])) / 65535.0;
x0 = (int) floor(px);
y0 = (int) floor(py);
z0 = (int) floor(pz);
w0 = (int) floor(pw);
if (((px - x0) != 0) ||
((py - y0) != 0) ||
((pz - z0) != 0) ||
((pw - w0) != 0)) return FALSE; // Not on exact node
index = p16 -> opta[3] * x0 +
p16 -> opta[2] * y0 +
p16 -> opta[1] * z0 +
p16 -> opta[0] * w0;
}
else
if (nChannelsIn == 3) {
px = ((cmsFloat64Number) At[0] * (p16->Domain[0])) / 65535.0;
py = ((cmsFloat64Number) At[1] * (p16->Domain[1])) / 65535.0;
pz = ((cmsFloat64Number) At[2] * (p16->Domain[2])) / 65535.0;
x0 = (int) floor(px);
y0 = (int) floor(py);
z0 = (int) floor(pz);
if (((px - x0) != 0) ||
((py - y0) != 0) ||
((pz - z0) != 0)) return FALSE; // Not on exact node
index = p16 -> opta[2] * x0 +
p16 -> opta[1] * y0 +
p16 -> opta[0] * z0;
}
else
if (nChannelsIn == 1) {
px = ((cmsFloat64Number) At[0] * (p16->Domain[0])) / 65535.0;
x0 = (int) floor(px);
if (((px - x0) != 0)) return FALSE; // Not on exact node
index = p16 -> opta[0] * x0;
}
else {
cmsSignalError(CLUT->ContextID, cmsERROR_INTERNAL, "(internal) %d Channels are not supported on PatchLUT", nChannelsIn);
return FALSE;
}
for (i=0; i < nChannelsOut; i++)
Grid -> Tab.T[index + i] = Value[i];
return TRUE;
}
// Auxiliar, to see if two values are equal or very different
static
cmsBool WhitesAreEqual(int n, cmsUInt16Number White1[], cmsUInt16Number White2[] )
{
int i;
for (i=0; i < n; i++) {
if (abs(White1[i] - White2[i]) > 0xf000) return TRUE; // Values are so extremly different that the fixup should be avoided
if (White1[i] != White2[i]) return FALSE;
}
return TRUE;
}
// Locate the node for the white point and fix it to pure white in order to avoid scum dot.
static
cmsBool FixWhiteMisalignment(cmsPipeline* Lut, cmsColorSpaceSignature EntryColorSpace, cmsColorSpaceSignature ExitColorSpace)
{
cmsUInt16Number *WhitePointIn, *WhitePointOut;
cmsUInt16Number WhiteIn[cmsMAXCHANNELS], WhiteOut[cmsMAXCHANNELS], ObtainedOut[cmsMAXCHANNELS];
cmsUInt32Number i, nOuts, nIns;
cmsStage *PreLin = NULL, *CLUT = NULL, *PostLin = NULL;
if (!_cmsEndPointsBySpace(EntryColorSpace,
&WhitePointIn, NULL, &nIns)) return FALSE;
if (!_cmsEndPointsBySpace(ExitColorSpace,
&WhitePointOut, NULL, &nOuts)) return FALSE;
// It needs to be fixed?
if (Lut ->InputChannels != nIns) return FALSE;
if (Lut ->OutputChannels != nOuts) return FALSE;
cmsPipelineEval16(WhitePointIn, ObtainedOut, Lut);
if (WhitesAreEqual(nOuts, WhitePointOut, ObtainedOut)) return TRUE; // whites already match
// Check if the LUT comes as Prelin, CLUT or Postlin. We allow all combinations
if (!cmsPipelineCheckAndRetreiveStages(Lut, 3, cmsSigCurveSetElemType, cmsSigCLutElemType, cmsSigCurveSetElemType, &PreLin, &CLUT, &PostLin))
if (!cmsPipelineCheckAndRetreiveStages(Lut, 2, cmsSigCurveSetElemType, cmsSigCLutElemType, &PreLin, &CLUT))
if (!cmsPipelineCheckAndRetreiveStages(Lut, 2, cmsSigCLutElemType, cmsSigCurveSetElemType, &CLUT, &PostLin))
if (!cmsPipelineCheckAndRetreiveStages(Lut, 1, cmsSigCLutElemType, &CLUT))
return FALSE;
// We need to interpolate white points of both, pre and post curves
if (PreLin) {
cmsToneCurve** Curves = _cmsStageGetPtrToCurveSet(PreLin);
for (i=0; i < nIns; i++) {
WhiteIn[i] = cmsEvalToneCurve16(Curves[i], WhitePointIn[i]);
}
}
else {
for (i=0; i < nIns; i++)
WhiteIn[i] = WhitePointIn[i];
}
// If any post-linearization, we need to find how is represented white before the curve, do
// a reverse interpolation in this case.
if (PostLin) {
cmsToneCurve** Curves = _cmsStageGetPtrToCurveSet(PostLin);
for (i=0; i < nOuts; i++) {
cmsToneCurve* InversePostLin = cmsReverseToneCurve(Curves[i]);
WhiteOut[i] = cmsEvalToneCurve16(InversePostLin, WhitePointOut[i]);
cmsFreeToneCurve(InversePostLin);
}
}
else {
for (i=0; i < nOuts; i++)
WhiteOut[i] = WhitePointOut[i];
}
// Ok, proceed with patching. May fail and we don't care if it fails
PatchLUT(CLUT, WhiteIn, WhiteOut, nOuts, nIns);
return TRUE;
}
// -----------------------------------------------------------------------------------------------------------------------------------------------
// This function creates simple LUT from complex ones. The generated LUT has an optional set of
// prelinearization curves, a CLUT of nGridPoints and optional postlinearization tables.
// These curves have to exist in the original LUT in order to be used in the simplified output.
// Caller may also use the flags to allow this feature.
// LUTS with all curves will be simplified to a single curve. Parametric curves are lost.
// This function should be used on 16-bits LUTS only, as floating point losses precision when simplified
// -----------------------------------------------------------------------------------------------------------------------------------------------
static
cmsBool OptimizeByResampling(cmsPipeline** Lut, cmsUInt32Number Intent, cmsUInt32Number* InputFormat, cmsUInt32Number* OutputFormat, cmsUInt32Number* dwFlags)
{
cmsPipeline* Src = NULL;
cmsPipeline* Dest = NULL;
cmsStage* mpe;
cmsStage* CLUT;
cmsStage *KeepPreLin = NULL, *KeepPostLin = NULL;
int nGridPoints;
cmsColorSpaceSignature ColorSpace, OutputColorSpace;
cmsStage *NewPreLin = NULL;
cmsStage *NewPostLin = NULL;
_cmsStageCLutData* DataCLUT;
cmsToneCurve** DataSetIn;
cmsToneCurve** DataSetOut;
Prelin16Data* p16;
// This is a loosy optimization! does not apply in floating-point cases
if (_cmsFormatterIsFloat(*InputFormat) || _cmsFormatterIsFloat(*OutputFormat)) return FALSE;
ColorSpace = _cmsICCcolorSpace(T_COLORSPACE(*InputFormat));
OutputColorSpace = _cmsICCcolorSpace(T_COLORSPACE(*OutputFormat));
nGridPoints = _cmsReasonableGridpointsByColorspace(ColorSpace, *dwFlags);
// For empty LUTs, 2 points are enough
if (cmsPipelineStageCount(*Lut) == 0)
nGridPoints = 2;
Src = *Lut;
// Named color pipelines cannot be optimized either
for (mpe = cmsPipelineGetPtrToFirstStage(Src);
mpe != NULL;
mpe = cmsStageNext(mpe)) {
if (cmsStageType(mpe) == cmsSigNamedColorElemType) return FALSE;
}
// Allocate an empty LUT
Dest = cmsPipelineAlloc(Src ->ContextID, Src ->InputChannels, Src ->OutputChannels);
if (!Dest) return FALSE;
// Prelinearization tables are kept unless indicated by flags
if (*dwFlags & cmsFLAGS_CLUT_PRE_LINEARIZATION) {
// Get a pointer to the prelinearization element
cmsStage* PreLin = cmsPipelineGetPtrToFirstStage(Src);
// Check if suitable
if (PreLin ->Type == cmsSigCurveSetElemType) {
// Maybe this is a linear tram, so we can avoid the whole stuff
if (!AllCurvesAreLinear(PreLin)) {
// All seems ok, proceed.
NewPreLin = cmsStageDup(PreLin);
if(!cmsPipelineInsertStage(Dest, cmsAT_BEGIN, NewPreLin))
goto Error;
// Remove prelinearization. Since we have duplicated the curve
// in destination LUT, the sampling shoud be applied after this stage.
cmsPipelineUnlinkStage(Src, cmsAT_BEGIN, &KeepPreLin);
}
}
}
// Allocate the CLUT
CLUT = cmsStageAllocCLut16bit(Src ->ContextID, nGridPoints, Src ->InputChannels, Src->OutputChannels, NULL);
if (CLUT == NULL) return FALSE;
// Add the CLUT to the destination LUT
if (!cmsPipelineInsertStage(Dest, cmsAT_END, CLUT)) {
goto Error;
}
// Postlinearization tables are kept unless indicated by flags
if (*dwFlags & cmsFLAGS_CLUT_POST_LINEARIZATION) {
// Get a pointer to the postlinearization if present
cmsStage* PostLin = cmsPipelineGetPtrToLastStage(Src);
// Check if suitable
if (cmsStageType(PostLin) == cmsSigCurveSetElemType) {
// Maybe this is a linear tram, so we can avoid the whole stuff
if (!AllCurvesAreLinear(PostLin)) {
// All seems ok, proceed.
NewPostLin = cmsStageDup(PostLin);
if (!cmsPipelineInsertStage(Dest, cmsAT_END, NewPostLin))
goto Error;
// In destination LUT, the sampling shoud be applied after this stage.
cmsPipelineUnlinkStage(Src, cmsAT_END, &KeepPostLin);
}
}
}
// Now its time to do the sampling. We have to ignore pre/post linearization
// The source LUT whithout pre/post curves is passed as parameter.
if (!cmsStageSampleCLut16bit(CLUT, XFormSampler16, (void*) Src, 0)) {
Error:
// Ops, something went wrong, Restore stages
if (KeepPreLin != NULL) {
if (!cmsPipelineInsertStage(Src, cmsAT_BEGIN, KeepPreLin)) {
_cmsAssert(0); // This never happens
}
}
if (KeepPostLin != NULL) {
if (!cmsPipelineInsertStage(Src, cmsAT_END, KeepPostLin)) {
_cmsAssert(0); // This never happens
}
}
cmsPipelineFree(Dest);
return FALSE;
}
// Done.
if (KeepPreLin != NULL) cmsStageFree(KeepPreLin);
if (KeepPostLin != NULL) cmsStageFree(KeepPostLin);
cmsPipelineFree(Src);
DataCLUT = (_cmsStageCLutData*) CLUT ->Data;
if (NewPreLin == NULL) DataSetIn = NULL;
else DataSetIn = ((_cmsStageToneCurvesData*) NewPreLin ->Data) ->TheCurves;
if (NewPostLin == NULL) DataSetOut = NULL;
else DataSetOut = ((_cmsStageToneCurvesData*) NewPostLin ->Data) ->TheCurves;
if (DataSetIn == NULL && DataSetOut == NULL) {
_cmsPipelineSetOptimizationParameters(Dest, (_cmsOPTeval16Fn) DataCLUT->Params->Interpolation.Lerp16, DataCLUT->Params, NULL, NULL);
}
else {
p16 = PrelinOpt16alloc(Dest ->ContextID,
DataCLUT ->Params,
Dest ->InputChannels,
DataSetIn,
Dest ->OutputChannels,
DataSetOut);
_cmsPipelineSetOptimizationParameters(Dest, PrelinEval16, (void*) p16, PrelinOpt16free, Prelin16dup);
}
// Don't fix white on absolute colorimetric
if (Intent == INTENT_ABSOLUTE_COLORIMETRIC)
*dwFlags |= cmsFLAGS_NOWHITEONWHITEFIXUP;
if (!(*dwFlags & cmsFLAGS_NOWHITEONWHITEFIXUP)) {
FixWhiteMisalignment(Dest, ColorSpace, OutputColorSpace);
}
*Lut = Dest;
return TRUE;
cmsUNUSED_PARAMETER(Intent);
}
// -----------------------------------------------------------------------------------------------------------------------------------------------
// Fixes the gamma balancing of transform. This is described in my paper "Prelinearization Stages on
// Color-Management Application-Specific Integrated Circuits (ASICs)" presented at NIP24. It only works
// for RGB transforms. See the paper for more details
// -----------------------------------------------------------------------------------------------------------------------------------------------
// Normalize endpoints by slope limiting max and min. This assures endpoints as well.
// Descending curves are handled as well.
static
void SlopeLimiting(cmsToneCurve* g)
{
int BeginVal, EndVal;
int AtBegin = (int) floor((cmsFloat64Number) g ->nEntries * 0.02 + 0.5); // Cutoff at 2%
int AtEnd = g ->nEntries - AtBegin - 1; // And 98%
cmsFloat64Number Val, Slope, beta;
int i;
if (cmsIsToneCurveDescending(g)) {
BeginVal = 0xffff; EndVal = 0;
}
else {
BeginVal = 0; EndVal = 0xffff;
}
// Compute slope and offset for begin of curve
Val = g ->Table16[AtBegin];
Slope = (Val - BeginVal) / AtBegin;
beta = Val - Slope * AtBegin;
for (i=0; i < AtBegin; i++)
g ->Table16[i] = _cmsQuickSaturateWord(i * Slope + beta);
// Compute slope and offset for the end
Val = g ->Table16[AtEnd];
Slope = (EndVal - Val) / AtBegin; // AtBegin holds the X interval, which is same in both cases
beta = Val - Slope * AtEnd;
for (i = AtEnd; i < (int) g ->nEntries; i++)
g ->Table16[i] = _cmsQuickSaturateWord(i * Slope + beta);
}
// Precomputes tables for 8-bit on input devicelink.
static
Prelin8Data* PrelinOpt8alloc(cmsContext ContextID, const cmsInterpParams* p, cmsToneCurve* G[3])
{
int i;
cmsUInt16Number Input[3];
cmsS15Fixed16Number v1, v2, v3;
Prelin8Data* p8;
p8 = _cmsMallocZero(ContextID, sizeof(Prelin8Data));
if (p8 == NULL) return NULL;
// Since this only works for 8 bit input, values comes always as x * 257,
// we can safely take msb byte (x << 8 + x)
for (i=0; i < 256; i++) {
if (G != NULL) {
// Get 16-bit representation
Input[0] = cmsEvalToneCurve16(G[0], FROM_8_TO_16(i));
Input[1] = cmsEvalToneCurve16(G[1], FROM_8_TO_16(i));
Input[2] = cmsEvalToneCurve16(G[2], FROM_8_TO_16(i));
}
else {
Input[0] = FROM_8_TO_16(i);
Input[1] = FROM_8_TO_16(i);
Input[2] = FROM_8_TO_16(i);
}
// Move to 0..1.0 in fixed domain
v1 = _cmsToFixedDomain(Input[0] * p -> Domain[0]);
v2 = _cmsToFixedDomain(Input[1] * p -> Domain[1]);
v3 = _cmsToFixedDomain(Input[2] * p -> Domain[2]);
// Store the precalculated table of nodes
p8 ->X0[i] = (p->opta[2] * FIXED_TO_INT(v1));
p8 ->Y0[i] = (p->opta[1] * FIXED_TO_INT(v2));
p8 ->Z0[i] = (p->opta[0] * FIXED_TO_INT(v3));
// Store the precalculated table of offsets
p8 ->rx[i] = (cmsUInt16Number) FIXED_REST_TO_INT(v1);
p8 ->ry[i] = (cmsUInt16Number) FIXED_REST_TO_INT(v2);
p8 ->rz[i] = (cmsUInt16Number) FIXED_REST_TO_INT(v3);
}
p8 ->ContextID = ContextID;
p8 ->p = p;
return p8;
}
static
void Prelin8free(cmsContext ContextID, void* ptr)
{
_cmsFree(ContextID, ptr);
}
static
void* Prelin8dup(cmsContext ContextID, const void* ptr)
{
return _cmsDupMem(ContextID, ptr, sizeof(Prelin8Data));
}
// A optimized interpolation for 8-bit input.
#define DENS(i,j,k) (LutTable[(i)+(j)+(k)+OutChan])
static
void PrelinEval8(register const cmsUInt16Number Input[],
register cmsUInt16Number Output[],
register const void* D)
{
cmsUInt8Number r, g, b;
cmsS15Fixed16Number rx, ry, rz;
cmsS15Fixed16Number c0, c1, c2, c3, Rest;
int OutChan;
register cmsS15Fixed16Number X0, X1, Y0, Y1, Z0, Z1;
Prelin8Data* p8 = (Prelin8Data*) D;
register const cmsInterpParams* p = p8 ->p;
int TotalOut = p -> nOutputs;
const cmsUInt16Number* LutTable = p -> Table;
r = Input[0] >> 8;
g = Input[1] >> 8;
b = Input[2] >> 8;
X0 = X1 = p8->X0[r];
Y0 = Y1 = p8->Y0[g];
Z0 = Z1 = p8->Z0[b];
rx = p8 ->rx[r];
ry = p8 ->ry[g];
rz = p8 ->rz[b];
X1 = X0 + ((rx == 0) ? 0 : p ->opta[2]);
Y1 = Y0 + ((ry == 0) ? 0 : p ->opta[1]);
Z1 = Z0 + ((rz == 0) ? 0 : p ->opta[0]);
// These are the 6 Tetrahedral
for (OutChan=0; OutChan < TotalOut; OutChan++) {
c0 = DENS(X0, Y0, Z0);
if (rx >= ry && ry >= rz)
{
c1 = DENS(X1, Y0, Z0) - c0;
c2 = DENS(X1, Y1, Z0) - DENS(X1, Y0, Z0);
c3 = DENS(X1, Y1, Z1) - DENS(X1, Y1, Z0);
}
else
if (rx >= rz && rz >= ry)
{
c1 = DENS(X1, Y0, Z0) - c0;
c2 = DENS(X1, Y1, Z1) - DENS(X1, Y0, Z1);
c3 = DENS(X1, Y0, Z1) - DENS(X1, Y0, Z0);
}
else
if (rz >= rx && rx >= ry)
{
c1 = DENS(X1, Y0, Z1) - DENS(X0, Y0, Z1);
c2 = DENS(X1, Y1, Z1) - DENS(X1, Y0, Z1);
c3 = DENS(X0, Y0, Z1) - c0;
}
else
if (ry >= rx && rx >= rz)
{
c1 = DENS(X1, Y1, Z0) - DENS(X0, Y1, Z0);
c2 = DENS(X0, Y1, Z0) - c0;
c3 = DENS(X1, Y1, Z1) - DENS(X1, Y1, Z0);
}
else
if (ry >= rz && rz >= rx)
{
c1 = DENS(X1, Y1, Z1) - DENS(X0, Y1, Z1);
c2 = DENS(X0, Y1, Z0) - c0;
c3 = DENS(X0, Y1, Z1) - DENS(X0, Y1, Z0);
}
else
if (rz >= ry && ry >= rx)
{
c1 = DENS(X1, Y1, Z1) - DENS(X0, Y1, Z1);
c2 = DENS(X0, Y1, Z1) - DENS(X0, Y0, Z1);
c3 = DENS(X0, Y0, Z1) - c0;
}
else {
c1 = c2 = c3 = 0;
}
Rest = c1 * rx + c2 * ry + c3 * rz + 0x8001;
Output[OutChan] = (cmsUInt16Number)c0 + ((Rest + (Rest>>16))>>16);
}
}
#undef DENS
// Curves that contain wide empty areas are not optimizeable
static
cmsBool IsDegenerated(const cmsToneCurve* g)
{
int i, Zeros = 0, Poles = 0;
int nEntries = g ->nEntries;
for (i=0; i < nEntries; i++) {
if (g ->Table16[i] == 0x0000) Zeros++;
if (g ->Table16[i] == 0xffff) Poles++;
}
if (Zeros == 1 && Poles == 1) return FALSE; // For linear tables
if (Zeros > (nEntries / 4)) return TRUE; // Degenerated, mostly zeros
if (Poles > (nEntries / 4)) return TRUE; // Degenerated, mostly poles
return FALSE;
}
// --------------------------------------------------------------------------------------------------------------
// We need xput over here
static
cmsBool OptimizeByComputingLinearization(cmsPipeline** Lut, cmsUInt32Number Intent, cmsUInt32Number* InputFormat, cmsUInt32Number* OutputFormat, cmsUInt32Number* dwFlags)
{
cmsPipeline* OriginalLut;
int nGridPoints;
cmsToneCurve *Trans[cmsMAXCHANNELS], *TransReverse[cmsMAXCHANNELS];
cmsUInt32Number t, i;
cmsFloat32Number v, In[cmsMAXCHANNELS], Out[cmsMAXCHANNELS];
cmsBool lIsSuitable, lIsLinear;
cmsPipeline* OptimizedLUT = NULL, *LutPlusCurves = NULL;
cmsStage* OptimizedCLUTmpe;
cmsColorSpaceSignature ColorSpace, OutputColorSpace;
cmsStage* OptimizedPrelinMpe;
cmsStage* mpe;
cmsToneCurve** OptimizedPrelinCurves;
_cmsStageCLutData* OptimizedPrelinCLUT;
// This is a loosy optimization! does not apply in floating-point cases
if (_cmsFormatterIsFloat(*InputFormat) || _cmsFormatterIsFloat(*OutputFormat)) return FALSE;
// Only on RGB
if (T_COLORSPACE(*InputFormat) != PT_RGB) return FALSE;
if (T_COLORSPACE(*OutputFormat) != PT_RGB) return FALSE;
// On 16 bits, user has to specify the feature
if (!_cmsFormatterIs8bit(*InputFormat)) {
if (!(*dwFlags & cmsFLAGS_CLUT_PRE_LINEARIZATION)) return FALSE;
}
OriginalLut = *Lut;
// Named color pipelines cannot be optimized either
for (mpe = cmsPipelineGetPtrToFirstStage(OriginalLut);
mpe != NULL;
mpe = cmsStageNext(mpe)) {
if (cmsStageType(mpe) == cmsSigNamedColorElemType) return FALSE;
}
ColorSpace = _cmsICCcolorSpace(T_COLORSPACE(*InputFormat));
OutputColorSpace = _cmsICCcolorSpace(T_COLORSPACE(*OutputFormat));
nGridPoints = _cmsReasonableGridpointsByColorspace(ColorSpace, *dwFlags);
// Empty gamma containers
memset(Trans, 0, sizeof(Trans));
memset(TransReverse, 0, sizeof(TransReverse));
for (t = 0; t < OriginalLut ->InputChannels; t++) {
Trans[t] = cmsBuildTabulatedToneCurve16(OriginalLut ->ContextID, PRELINEARIZATION_POINTS, NULL);
if (Trans[t] == NULL) goto Error;
}
// Populate the curves
for (i=0; i < PRELINEARIZATION_POINTS; i++) {
v = (cmsFloat32Number) ((cmsFloat64Number) i / (PRELINEARIZATION_POINTS - 1));
// Feed input with a gray ramp
for (t=0; t < OriginalLut ->InputChannels; t++)
In[t] = v;
// Evaluate the gray value
cmsPipelineEvalFloat(In, Out, OriginalLut);
// Store result in curve
for (t=0; t < OriginalLut ->InputChannels; t++)
Trans[t] ->Table16[i] = _cmsQuickSaturateWord(Out[t] * 65535.0);
}
// Slope-limit the obtained curves
for (t = 0; t < OriginalLut ->InputChannels; t++)
SlopeLimiting(Trans[t]);
// Check for validity
lIsSuitable = TRUE;
lIsLinear = TRUE;
for (t=0; (lIsSuitable && (t < OriginalLut ->InputChannels)); t++) {
// Exclude if already linear
if (!cmsIsToneCurveLinear(Trans[t]))
lIsLinear = FALSE;
// Exclude if non-monotonic
if (!cmsIsToneCurveMonotonic(Trans[t]))
lIsSuitable = FALSE;
if (IsDegenerated(Trans[t]))
lIsSuitable = FALSE;
}
// If it is not suitable, just quit
if (!lIsSuitable) goto Error;
// Invert curves if possible
for (t = 0; t < OriginalLut ->InputChannels; t++) {
TransReverse[t] = cmsReverseToneCurveEx(PRELINEARIZATION_POINTS, Trans[t]);
if (TransReverse[t] == NULL) goto Error;
}
// Now inset the reversed curves at the begin of transform
LutPlusCurves = cmsPipelineDup(OriginalLut);
if (LutPlusCurves == NULL) goto Error;
if (!cmsPipelineInsertStage(LutPlusCurves, cmsAT_BEGIN, cmsStageAllocToneCurves(OriginalLut ->ContextID, OriginalLut ->InputChannels, TransReverse)))
goto Error;
// Create the result LUT
OptimizedLUT = cmsPipelineAlloc(OriginalLut ->ContextID, OriginalLut ->InputChannels, OriginalLut ->OutputChannels);
if (OptimizedLUT == NULL) goto Error;
OptimizedPrelinMpe = cmsStageAllocToneCurves(OriginalLut ->ContextID, OriginalLut ->InputChannels, Trans);
// Create and insert the curves at the beginning
if (!cmsPipelineInsertStage(OptimizedLUT, cmsAT_BEGIN, OptimizedPrelinMpe))
goto Error;
// Allocate the CLUT for result
OptimizedCLUTmpe = cmsStageAllocCLut16bit(OriginalLut ->ContextID, nGridPoints, OriginalLut ->InputChannels, OriginalLut ->OutputChannels, NULL);
// Add the CLUT to the destination LUT
if (!cmsPipelineInsertStage(OptimizedLUT, cmsAT_END, OptimizedCLUTmpe))
goto Error;
// Resample the LUT
if (!cmsStageSampleCLut16bit(OptimizedCLUTmpe, XFormSampler16, (void*) LutPlusCurves, 0)) goto Error;
// Free resources
for (t = 0; t < OriginalLut ->InputChannels; t++) {
if (Trans[t]) cmsFreeToneCurve(Trans[t]);
if (TransReverse[t]) cmsFreeToneCurve(TransReverse[t]);
}
cmsPipelineFree(LutPlusCurves);
OptimizedPrelinCurves = _cmsStageGetPtrToCurveSet(OptimizedPrelinMpe);
OptimizedPrelinCLUT = (_cmsStageCLutData*) OptimizedCLUTmpe ->Data;
// Set the evaluator if 8-bit
if (_cmsFormatterIs8bit(*InputFormat)) {
Prelin8Data* p8 = PrelinOpt8alloc(OptimizedLUT ->ContextID,
OptimizedPrelinCLUT ->Params,
OptimizedPrelinCurves);
if (p8 == NULL) return FALSE;
_cmsPipelineSetOptimizationParameters(OptimizedLUT, PrelinEval8, (void*) p8, Prelin8free, Prelin8dup);
}
else
{
Prelin16Data* p16 = PrelinOpt16alloc(OptimizedLUT ->ContextID,
OptimizedPrelinCLUT ->Params,
3, OptimizedPrelinCurves, 3, NULL);
if (p16 == NULL) return FALSE;
_cmsPipelineSetOptimizationParameters(OptimizedLUT, PrelinEval16, (void*) p16, PrelinOpt16free, Prelin16dup);
}
// Don't fix white on absolute colorimetric
if (Intent == INTENT_ABSOLUTE_COLORIMETRIC)
*dwFlags |= cmsFLAGS_NOWHITEONWHITEFIXUP;
if (!(*dwFlags & cmsFLAGS_NOWHITEONWHITEFIXUP)) {
if (!FixWhiteMisalignment(OptimizedLUT, ColorSpace, OutputColorSpace)) {
return FALSE;
}
}
// And return the obtained LUT
cmsPipelineFree(OriginalLut);
*Lut = OptimizedLUT;
return TRUE;
Error:
for (t = 0; t < OriginalLut ->InputChannels; t++) {
if (Trans[t]) cmsFreeToneCurve(Trans[t]);
if (TransReverse[t]) cmsFreeToneCurve(TransReverse[t]);
}
if (LutPlusCurves != NULL) cmsPipelineFree(LutPlusCurves);
if (OptimizedLUT != NULL) cmsPipelineFree(OptimizedLUT);
return FALSE;
cmsUNUSED_PARAMETER(Intent);
}
// Curves optimizer ------------------------------------------------------------------------------------------------------------------
static
void CurvesFree(cmsContext ContextID, void* ptr)
{
Curves16Data* Data = (Curves16Data*) ptr;
int i;
for (i=0; i < Data -> nCurves; i++) {
_cmsFree(ContextID, Data ->Curves[i]);
}
_cmsFree(ContextID, Data ->Curves);
_cmsFree(ContextID, ptr);
}
static
void* CurvesDup(cmsContext ContextID, const void* ptr)
{
Curves16Data* Data = _cmsDupMem(ContextID, ptr, sizeof(Curves16Data));
int i;
if (Data == NULL) return NULL;
Data ->Curves = _cmsDupMem(ContextID, Data ->Curves, Data ->nCurves * sizeof(cmsUInt16Number*));
for (i=0; i < Data -> nCurves; i++) {
Data ->Curves[i] = _cmsDupMem(ContextID, Data ->Curves[i], Data -> nElements * sizeof(cmsUInt16Number));
}
return (void*) Data;
}
// Precomputes tables for 8-bit on input devicelink.
static
Curves16Data* CurvesAlloc(cmsContext ContextID, int nCurves, int nElements, cmsToneCurve** G)
{
int i, j;
Curves16Data* c16;
c16 = _cmsMallocZero(ContextID, sizeof(Curves16Data));
if (c16 == NULL) return NULL;
c16 ->nCurves = nCurves;
c16 ->nElements = nElements;
c16 ->Curves = _cmsCalloc(ContextID, nCurves, sizeof(cmsUInt16Number*));
if (c16 ->Curves == NULL) return NULL;
for (i=0; i < nCurves; i++) {
c16->Curves[i] = _cmsCalloc(ContextID, nElements, sizeof(cmsUInt16Number));
if (c16->Curves[i] == NULL) {
for (j=0; j < i; j++) {
_cmsFree(ContextID, c16->Curves[j]);
}
_cmsFree(ContextID, c16->Curves);
_cmsFree(ContextID, c16);
return NULL;
}
if (nElements == 256) {
for (j=0; j < nElements; j++) {
c16 ->Curves[i][j] = cmsEvalToneCurve16(G[i], FROM_8_TO_16(j));
}
}
else {
for (j=0; j < nElements; j++) {
c16 ->Curves[i][j] = cmsEvalToneCurve16(G[i], (cmsUInt16Number) j);
}
}
}
return c16;
}
static
void FastEvaluateCurves8(register const cmsUInt16Number In[],
register cmsUInt16Number Out[],
register const void* D)
{
Curves16Data* Data = (Curves16Data*) D;
cmsUInt8Number x;
int i;
for (i=0; i < Data ->nCurves; i++) {
x = (In[i] >> 8);
Out[i] = Data -> Curves[i][x];
}
}
static
void FastEvaluateCurves16(register const cmsUInt16Number In[],
register cmsUInt16Number Out[],
register const void* D)
{
Curves16Data* Data = (Curves16Data*) D;
int i;
for (i=0; i < Data ->nCurves; i++) {
Out[i] = Data -> Curves[i][In[i]];
}
}
static
void FastIdentity16(register const cmsUInt16Number In[],
register cmsUInt16Number Out[],
register const void* D)
{
cmsPipeline* Lut = (cmsPipeline*) D;
cmsUInt32Number i;
for (i=0; i < Lut ->InputChannels; i++) {
Out[i] = In[i];
}
}
// If the target LUT holds only curves, the optimization procedure is to join all those
// curves together. That only works on curves and does not work on matrices.
static
cmsBool OptimizeByJoiningCurves(cmsPipeline** Lut, cmsUInt32Number Intent, cmsUInt32Number* InputFormat, cmsUInt32Number* OutputFormat, cmsUInt32Number* dwFlags)
{
cmsToneCurve** GammaTables = NULL;
cmsFloat32Number InFloat[cmsMAXCHANNELS], OutFloat[cmsMAXCHANNELS];
cmsUInt32Number i, j;
cmsPipeline* Src = *Lut;
cmsPipeline* Dest = NULL;
cmsStage* mpe;
cmsStage* ObtainedCurves = NULL;
// This is a loosy optimization! does not apply in floating-point cases
if (_cmsFormatterIsFloat(*InputFormat) || _cmsFormatterIsFloat(*OutputFormat)) return FALSE;
// Only curves in this LUT?
for (mpe = cmsPipelineGetPtrToFirstStage(Src);
mpe != NULL;
mpe = cmsStageNext(mpe)) {
if (cmsStageType(mpe) != cmsSigCurveSetElemType) return FALSE;
}
// Allocate an empty LUT
Dest = cmsPipelineAlloc(Src ->ContextID, Src ->InputChannels, Src ->OutputChannels);
if (Dest == NULL) return FALSE;
// Create target curves
GammaTables = (cmsToneCurve**) _cmsCalloc(Src ->ContextID, Src ->InputChannels, sizeof(cmsToneCurve*));
if (GammaTables == NULL) goto Error;
for (i=0; i < Src ->InputChannels; i++) {
GammaTables[i] = cmsBuildTabulatedToneCurve16(Src ->ContextID, PRELINEARIZATION_POINTS, NULL);
if (GammaTables[i] == NULL) goto Error;
}
// Compute 16 bit result by using floating point
for (i=0; i < PRELINEARIZATION_POINTS; i++) {
for (j=0; j < Src ->InputChannels; j++)
InFloat[j] = (cmsFloat32Number) ((cmsFloat64Number) i / (PRELINEARIZATION_POINTS - 1));
cmsPipelineEvalFloat(InFloat, OutFloat, Src);
for (j=0; j < Src ->InputChannels; j++)
GammaTables[j] -> Table16[i] = _cmsQuickSaturateWord(OutFloat[j] * 65535.0);
}
ObtainedCurves = cmsStageAllocToneCurves(Src ->ContextID, Src ->InputChannels, GammaTables);
if (ObtainedCurves == NULL) goto Error;
for (i=0; i < Src ->InputChannels; i++) {
cmsFreeToneCurve(GammaTables[i]);
GammaTables[i] = NULL;
}
if (GammaTables != NULL) _cmsFree(Src ->ContextID, GammaTables);
// Maybe the curves are linear at the end
if (!AllCurvesAreLinear(ObtainedCurves)) {
if (!cmsPipelineInsertStage(Dest, cmsAT_BEGIN, ObtainedCurves))
goto Error;
// If the curves are to be applied in 8 bits, we can save memory
if (_cmsFormatterIs8bit(*InputFormat)) {
_cmsStageToneCurvesData* Data = (_cmsStageToneCurvesData*) ObtainedCurves ->Data;
Curves16Data* c16 = CurvesAlloc(Dest ->ContextID, Data ->nCurves, 256, Data ->TheCurves);
if (c16 == NULL) goto Error;
*dwFlags |= cmsFLAGS_NOCACHE;
_cmsPipelineSetOptimizationParameters(Dest, FastEvaluateCurves8, c16, CurvesFree, CurvesDup);
}
else {
_cmsStageToneCurvesData* Data = (_cmsStageToneCurvesData*) cmsStageData(ObtainedCurves);
Curves16Data* c16 = CurvesAlloc(Dest ->ContextID, Data ->nCurves, 65536, Data ->TheCurves);
if (c16 == NULL) goto Error;
*dwFlags |= cmsFLAGS_NOCACHE;
_cmsPipelineSetOptimizationParameters(Dest, FastEvaluateCurves16, c16, CurvesFree, CurvesDup);
}
}
else {
// LUT optimizes to nothing. Set the identity LUT
cmsStageFree(ObtainedCurves);
if (!cmsPipelineInsertStage(Dest, cmsAT_BEGIN, cmsStageAllocIdentity(Dest ->ContextID, Src ->InputChannels)))
goto Error;
*dwFlags |= cmsFLAGS_NOCACHE;
_cmsPipelineSetOptimizationParameters(Dest, FastIdentity16, (void*) Dest, NULL, NULL);
}
// We are done.
cmsPipelineFree(Src);
*Lut = Dest;
return TRUE;
Error:
if (ObtainedCurves != NULL) cmsStageFree(ObtainedCurves);
if (GammaTables != NULL) {
for (i=0; i < Src ->InputChannels; i++) {
if (GammaTables[i] != NULL) cmsFreeToneCurve(GammaTables[i]);
}
_cmsFree(Src ->ContextID, GammaTables);
}
if (Dest != NULL) cmsPipelineFree(Dest);
return FALSE;
cmsUNUSED_PARAMETER(Intent);
cmsUNUSED_PARAMETER(InputFormat);
cmsUNUSED_PARAMETER(OutputFormat);
cmsUNUSED_PARAMETER(dwFlags);
}
// -------------------------------------------------------------------------------------------------------------------------------------
// LUT is Shaper - Matrix - Matrix - Shaper, which is very frequent when combining two matrix-shaper profiles
static
void FreeMatShaper(cmsContext ContextID, void* Data)
{
if (Data != NULL) _cmsFree(ContextID, Data);
}
static
void* DupMatShaper(cmsContext ContextID, const void* Data)
{
return _cmsDupMem(ContextID, Data, sizeof(MatShaper8Data));
}
// A fast matrix-shaper evaluator for 8 bits. This is a bit ticky since I'm using 1.14 signed fixed point
// to accomplish some performance. Actually it takes 256x3 16 bits tables and 16385 x 3 tables of 8 bits,
// in total about 50K, and the performance boost is huge!
static
void MatShaperEval16(register const cmsUInt16Number In[],
register cmsUInt16Number Out[],
register const void* D)
{
MatShaper8Data* p = (MatShaper8Data*) D;
cmsS1Fixed14Number l1, l2, l3, r, g, b;
cmsUInt32Number ri, gi, bi;
// In this case (and only in this case!) we can use this simplification since
// In[] is assured to come from a 8 bit number. (a << 8 | a)
ri = In[0] & 0xFF;
gi = In[1] & 0xFF;
bi = In[2] & 0xFF;
// Across first shaper, which also converts to 1.14 fixed point
r = p->Shaper1R[ri];
g = p->Shaper1G[gi];
b = p->Shaper1B[bi];
// Evaluate the matrix in 1.14 fixed point
l1 = (p->Mat[0][0] * r + p->Mat[0][1] * g + p->Mat[0][2] * b + p->Off[0] + 0x2000) >> 14;
l2 = (p->Mat[1][0] * r + p->Mat[1][1] * g + p->Mat[1][2] * b + p->Off[1] + 0x2000) >> 14;
l3 = (p->Mat[2][0] * r + p->Mat[2][1] * g + p->Mat[2][2] * b + p->Off[2] + 0x2000) >> 14;
// Now we have to clip to 0..1.0 range
ri = (l1 < 0) ? 0 : ((l1 > 16384) ? 16384 : l1);
gi = (l2 < 0) ? 0 : ((l2 > 16384) ? 16384 : l2);
bi = (l3 < 0) ? 0 : ((l3 > 16384) ? 16384 : l3);
// And across second shaper,
Out[0] = p->Shaper2R[ri];
Out[1] = p->Shaper2G[gi];
Out[2] = p->Shaper2B[bi];
}
// This table converts from 8 bits to 1.14 after applying the curve
static
void FillFirstShaper(cmsS1Fixed14Number* Table, cmsToneCurve* Curve)
{
int i;
cmsFloat32Number R, y;
for (i=0; i < 256; i++) {
R = (cmsFloat32Number) (i / 255.0);
y = cmsEvalToneCurveFloat(Curve, R);
Table[i] = DOUBLE_TO_1FIXED14(y);
}
}
// This table converts form 1.14 (being 0x4000 the last entry) to 8 bits after applying the curve
static
void FillSecondShaper(cmsUInt16Number* Table, cmsToneCurve* Curve, cmsBool Is8BitsOutput)
{
int i;
cmsFloat32Number R, Val;
for (i=0; i < 16385; i++) {
R = (cmsFloat32Number) (i / 16384.0);
Val = cmsEvalToneCurveFloat(Curve, R); // Val comes 0..1.0
if (Is8BitsOutput) {
// If 8 bits output, we can optimize further by computing the / 257 part.
// first we compute the resulting byte and then we store the byte times
// 257. This quantization allows to round very quick by doing a >> 8, but
// since the low byte is always equal to msb, we can do a & 0xff and this works!
cmsUInt16Number w = _cmsQuickSaturateWord(Val * 65535.0);
cmsUInt8Number b = FROM_16_TO_8(w);
Table[i] = FROM_8_TO_16(b);
}
else Table[i] = _cmsQuickSaturateWord(Val * 65535.0);
}
}
// Compute the matrix-shaper structure
static
cmsBool SetMatShaper(cmsPipeline* Dest, cmsToneCurve* Curve1[3], cmsMAT3* Mat, cmsVEC3* Off, cmsToneCurve* Curve2[3], cmsUInt32Number* OutputFormat)
{
MatShaper8Data* p;
int i, j;
cmsBool Is8Bits = _cmsFormatterIs8bit(*OutputFormat);
// Allocate a big chuck of memory to store precomputed tables
p = (MatShaper8Data*) _cmsMalloc(Dest ->ContextID, sizeof(MatShaper8Data));
if (p == NULL) return FALSE;
p -> ContextID = Dest -> ContextID;
// Precompute tables
FillFirstShaper(p ->Shaper1R, Curve1[0]);
FillFirstShaper(p ->Shaper1G, Curve1[1]);
FillFirstShaper(p ->Shaper1B, Curve1[2]);
FillSecondShaper(p ->Shaper2R, Curve2[0], Is8Bits);
FillSecondShaper(p ->Shaper2G, Curve2[1], Is8Bits);
FillSecondShaper(p ->Shaper2B, Curve2[2], Is8Bits);
// Convert matrix to nFixed14. Note that those values may take more than 16 bits as
for (i=0; i < 3; i++) {
for (j=0; j < 3; j++) {
p ->Mat[i][j] = DOUBLE_TO_1FIXED14(Mat->v[i].n[j]);
}
}
for (i=0; i < 3; i++) {
if (Off == NULL) {
p ->Off[i] = 0;
}
else {
p ->Off[i] = DOUBLE_TO_1FIXED14(Off->n[i]);
}
}
// Mark as optimized for faster formatter
if (Is8Bits)
*OutputFormat |= OPTIMIZED_SH(1);
// Fill function pointers
_cmsPipelineSetOptimizationParameters(Dest, MatShaperEval16, (void*) p, FreeMatShaper, DupMatShaper);
return TRUE;
}
// 8 bits on input allows matrix-shaper boot up to 25 Mpixels per second on RGB. That's fast!
// TODO: Allow a third matrix for abs. colorimetric
static
cmsBool OptimizeMatrixShaper(cmsPipeline** Lut, cmsUInt32Number Intent, cmsUInt32Number* InputFormat, cmsUInt32Number* OutputFormat, cmsUInt32Number* dwFlags)
{
cmsStage* Curve1, *Curve2;
cmsStage* Matrix1, *Matrix2;
_cmsStageMatrixData* Data1;
_cmsStageMatrixData* Data2;
cmsMAT3 res;
cmsBool IdentityMat;
cmsPipeline* Dest, *Src;
// Only works on RGB to RGB
if (T_CHANNELS(*InputFormat) != 3 || T_CHANNELS(*OutputFormat) != 3) return FALSE;
// Only works on 8 bit input
if (!_cmsFormatterIs8bit(*InputFormat)) return FALSE;
// Seems suitable, proceed
Src = *Lut;
// Check for shaper-matrix-matrix-shaper structure, that is what this optimizer stands for
if (!cmsPipelineCheckAndRetreiveStages(Src, 4,
cmsSigCurveSetElemType, cmsSigMatrixElemType, cmsSigMatrixElemType, cmsSigCurveSetElemType,
&Curve1, &Matrix1, &Matrix2, &Curve2)) return FALSE;
// Get both matrices
Data1 = (_cmsStageMatrixData*) cmsStageData(Matrix1);
Data2 = (_cmsStageMatrixData*) cmsStageData(Matrix2);
// Input offset should be zero
if (Data1 ->Offset != NULL) return FALSE;
// Multiply both matrices to get the result
_cmsMAT3per(&res, (cmsMAT3*) Data2 ->Double, (cmsMAT3*) Data1 ->Double);
// Now the result is in res + Data2 -> Offset. Maybe is a plain identity?
IdentityMat = FALSE;
if (_cmsMAT3isIdentity(&res) && Data2 ->Offset == NULL) {
// We can get rid of full matrix
IdentityMat = TRUE;
}
// Allocate an empty LUT
Dest = cmsPipelineAlloc(Src ->ContextID, Src ->InputChannels, Src ->OutputChannels);
if (!Dest) return FALSE;
// Assamble the new LUT
if (!cmsPipelineInsertStage(Dest, cmsAT_BEGIN, cmsStageDup(Curve1)))
goto Error;
if (!IdentityMat)
if (!cmsPipelineInsertStage(Dest, cmsAT_END, cmsStageAllocMatrix(Dest ->ContextID, 3, 3, (const cmsFloat64Number*) &res, Data2 ->Offset)))
goto Error;
if (!cmsPipelineInsertStage(Dest, cmsAT_END, cmsStageDup(Curve2)))
goto Error;
// If identity on matrix, we can further optimize the curves, so call the join curves routine
if (IdentityMat) {
OptimizeByJoiningCurves(&Dest, Intent, InputFormat, OutputFormat, dwFlags);
}
else {
_cmsStageToneCurvesData* mpeC1 = (_cmsStageToneCurvesData*) cmsStageData(Curve1);
_cmsStageToneCurvesData* mpeC2 = (_cmsStageToneCurvesData*) cmsStageData(Curve2);
// In this particular optimization, cachΘ does not help as it takes more time to deal with
// the cachΘ that with the pixel handling
*dwFlags |= cmsFLAGS_NOCACHE;
// Setup the optimizarion routines
SetMatShaper(Dest, mpeC1 ->TheCurves, &res, (cmsVEC3*) Data2 ->Offset, mpeC2->TheCurves, OutputFormat);
}
cmsPipelineFree(Src);
*Lut = Dest;
return TRUE;
Error:
// Leave Src unchanged
cmsPipelineFree(Dest);
return FALSE;
}
// -------------------------------------------------------------------------------------------------------------------------------------
// Optimization plug-ins
// List of optimizations
typedef struct _cmsOptimizationCollection_st {
_cmsOPToptimizeFn OptimizePtr;
struct _cmsOptimizationCollection_st *Next;
} _cmsOptimizationCollection;
// The built-in list. We currently implement 4 types of optimizations. Joining of curves, matrix-shaper, linearization and resampling
static _cmsOptimizationCollection DefaultOptimization[] = {
{ OptimizeByJoiningCurves, &DefaultOptimization[1] },
{ OptimizeMatrixShaper, &DefaultOptimization[2] },
{ OptimizeByComputingLinearization, &DefaultOptimization[3] },
{ OptimizeByResampling, NULL }
};
// The linked list head
static _cmsOptimizationCollection* OptimizationCollection = DefaultOptimization;
// Register new ways to optimize
cmsBool _cmsRegisterOptimizationPlugin(cmsContext id, cmsPluginBase* Data)
{
cmsPluginOptimization* Plugin = (cmsPluginOptimization*) Data;
_cmsOptimizationCollection* fl;
if (Data == NULL) {
OptimizationCollection = DefaultOptimization;
return TRUE;
}
// Optimizer callback is required
if (Plugin ->OptimizePtr == NULL) return FALSE;
fl = (_cmsOptimizationCollection*) _cmsPluginMalloc(id, sizeof(_cmsOptimizationCollection));
if (fl == NULL) return FALSE;
// Copy the parameters
fl ->OptimizePtr = Plugin ->OptimizePtr;
// Keep linked list
fl ->Next = OptimizationCollection;
OptimizationCollection = fl;
// All is ok
return TRUE;
}
// The entry point for LUT optimization
cmsBool _cmsOptimizePipeline(cmsPipeline** PtrLut,
int Intent,
cmsUInt32Number* InputFormat,
cmsUInt32Number* OutputFormat,
cmsUInt32Number* dwFlags)
{
_cmsOptimizationCollection* Opts;
cmsBool AnySuccess = FALSE;
// A CLUT is being asked, so force this specific optimization
if (*dwFlags & cmsFLAGS_FORCE_CLUT) {
PreOptimize(*PtrLut);
return OptimizeByResampling(PtrLut, Intent, InputFormat, OutputFormat, dwFlags);
}
// Anything to optimize?
if ((*PtrLut) ->Elements == NULL) {
_cmsPipelineSetOptimizationParameters(*PtrLut, FastIdentity16, (void*) *PtrLut, NULL, NULL);
return TRUE;
}
// Try to get rid of identities and trivial conversions.
AnySuccess = PreOptimize(*PtrLut);
// After removal do we end with an identity?
if ((*PtrLut) ->Elements == NULL) {
_cmsPipelineSetOptimizationParameters(*PtrLut, FastIdentity16, (void*) *PtrLut, NULL, NULL);
return TRUE;
}
// Do not optimize, keep all precision
if (*dwFlags & cmsFLAGS_NOOPTIMIZE)
return FALSE;
// Try built-in optimizations and plug-in
for (Opts = OptimizationCollection;
Opts != NULL;
Opts = Opts ->Next) {
// If one schema succeeded, we are done
if (Opts ->OptimizePtr(PtrLut, Intent, InputFormat, OutputFormat, dwFlags)) {
return TRUE; // Optimized!
}
}
// Only simple optimizations succeeded
return AnySuccess;
}
|
51 | ./little-cms/src/cmsplugin.c | //---------------------------------------------------------------------------------
//
// Little Color Management System
// Copyright (c) 1998-2010 Marti Maria Saguer
//
// Permission is hereby granted, free of charge, to any person obtaining
// a copy of this software and associated documentation files (the "Software"),
// to deal in the Software without restriction, including without limitation
// the rights to use, copy, modify, merge, publish, distribute, sublicense,
// and/or sell copies of the Software, and to permit persons to whom the Software
// is furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO
// THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
// LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
// OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
// WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
//
//---------------------------------------------------------------------------------
//
#include "lcms2_internal.h"
// ----------------------------------------------------------------------------------
// Encoding & Decoding support functions
// ----------------------------------------------------------------------------------
// Little-Endian to Big-Endian
// Adjust a word value after being readed/ before being written from/to an ICC profile
cmsUInt16Number CMSEXPORT _cmsAdjustEndianess16(cmsUInt16Number Word)
{
#ifndef CMS_USE_BIG_ENDIAN
cmsUInt8Number* pByte = (cmsUInt8Number*) &Word;
cmsUInt8Number tmp;
tmp = pByte[0];
pByte[0] = pByte[1];
pByte[1] = tmp;
#endif
return Word;
}
// Transports to properly encoded values - note that icc profiles does use big endian notation.
// 1 2 3 4
// 4 3 2 1
cmsUInt32Number CMSEXPORT _cmsAdjustEndianess32(cmsUInt32Number DWord)
{
#ifndef CMS_USE_BIG_ENDIAN
cmsUInt8Number* pByte = (cmsUInt8Number*) &DWord;
cmsUInt8Number temp1;
cmsUInt8Number temp2;
temp1 = *pByte++;
temp2 = *pByte++;
*(pByte-1) = *pByte;
*pByte++ = temp2;
*(pByte-3) = *pByte;
*pByte = temp1;
#endif
return DWord;
}
// 1 2 3 4 5 6 7 8
// 8 7 6 5 4 3 2 1
void CMSEXPORT _cmsAdjustEndianess64(cmsUInt64Number* Result, cmsUInt64Number* QWord)
{
#ifndef CMS_USE_BIG_ENDIAN
cmsUInt8Number* pIn = (cmsUInt8Number*) QWord;
cmsUInt8Number* pOut = (cmsUInt8Number*) Result;
_cmsAssert(Result != NULL);
pOut[7] = pIn[0];
pOut[6] = pIn[1];
pOut[5] = pIn[2];
pOut[4] = pIn[3];
pOut[3] = pIn[4];
pOut[2] = pIn[5];
pOut[1] = pIn[6];
pOut[0] = pIn[7];
#else
_cmsAssert(Result != NULL);
# ifdef CMS_DONT_USE_INT64
(*Result)[0] = QWord[0];
(*Result)[1] = QWord[1];
# else
*Result = QWord;
# endif
#endif
}
// Auxiliar -- read 8, 16 and 32-bit numbers
cmsBool CMSEXPORT _cmsReadUInt8Number(cmsIOHANDLER* io, cmsUInt8Number* n)
{
cmsUInt8Number tmp;
_cmsAssert(io != NULL);
if (io -> Read(io, &tmp, sizeof(cmsUInt8Number), 1) != 1)
return FALSE;
if (n != NULL) *n = tmp;
return TRUE;
}
cmsBool CMSEXPORT _cmsReadUInt16Number(cmsIOHANDLER* io, cmsUInt16Number* n)
{
cmsUInt16Number tmp;
_cmsAssert(io != NULL);
if (io -> Read(io, &tmp, sizeof(cmsUInt16Number), 1) != 1)
return FALSE;
if (n != NULL) *n = _cmsAdjustEndianess16(tmp);
return TRUE;
}
cmsBool CMSEXPORT _cmsReadUInt16Array(cmsIOHANDLER* io, cmsUInt32Number n, cmsUInt16Number* Array)
{
cmsUInt32Number i;
_cmsAssert(io != NULL);
for (i=0; i < n; i++) {
if (Array != NULL) {
if (!_cmsReadUInt16Number(io, Array + i)) return FALSE;
}
else {
if (!_cmsReadUInt16Number(io, NULL)) return FALSE;
}
}
return TRUE;
}
cmsBool CMSEXPORT _cmsReadUInt32Number(cmsIOHANDLER* io, cmsUInt32Number* n)
{
cmsUInt32Number tmp;
_cmsAssert(io != NULL);
if (io -> Read(io, &tmp, sizeof(cmsUInt32Number), 1) != 1)
return FALSE;
if (n != NULL) *n = _cmsAdjustEndianess32(tmp);
return TRUE;
}
cmsBool CMSEXPORT _cmsReadFloat32Number(cmsIOHANDLER* io, cmsFloat32Number* n)
{
cmsUInt32Number tmp;
_cmsAssert(io != NULL);
if (io -> Read(io, &tmp, sizeof(cmsFloat32Number), 1) != 1)
return FALSE;
if (n != NULL) {
tmp = _cmsAdjustEndianess32(tmp);
*n = *(cmsFloat32Number*) &tmp;
}
return TRUE;
}
cmsBool CMSEXPORT _cmsReadUInt64Number(cmsIOHANDLER* io, cmsUInt64Number* n)
{
cmsUInt64Number tmp;
_cmsAssert(io != NULL);
if (io -> Read(io, &tmp, sizeof(cmsUInt64Number), 1) != 1)
return FALSE;
if (n != NULL) _cmsAdjustEndianess64(n, &tmp);
return TRUE;
}
cmsBool CMSEXPORT _cmsRead15Fixed16Number(cmsIOHANDLER* io, cmsFloat64Number* n)
{
cmsUInt32Number tmp;
_cmsAssert(io != NULL);
if (io -> Read(io, &tmp, sizeof(cmsUInt32Number), 1) != 1)
return FALSE;
if (n != NULL) {
*n = _cms15Fixed16toDouble(_cmsAdjustEndianess32(tmp));
}
return TRUE;
}
// Jun-21-2000: Some profiles (those that comes with W2K) comes
// with the media white (media black?) x 100. Add a sanity check
static
void NormalizeXYZ(cmsCIEXYZ* Dest)
{
while (Dest -> X > 2. &&
Dest -> Y > 2. &&
Dest -> Z > 2.) {
Dest -> X /= 10.;
Dest -> Y /= 10.;
Dest -> Z /= 10.;
}
}
cmsBool CMSEXPORT _cmsReadXYZNumber(cmsIOHANDLER* io, cmsCIEXYZ* XYZ)
{
cmsEncodedXYZNumber xyz;
_cmsAssert(io != NULL);
if (io ->Read(io, &xyz, sizeof(cmsEncodedXYZNumber), 1) != 1) return FALSE;
if (XYZ != NULL) {
XYZ->X = _cms15Fixed16toDouble(_cmsAdjustEndianess32(xyz.X));
XYZ->Y = _cms15Fixed16toDouble(_cmsAdjustEndianess32(xyz.Y));
XYZ->Z = _cms15Fixed16toDouble(_cmsAdjustEndianess32(xyz.Z));
NormalizeXYZ(XYZ);
}
return TRUE;
}
cmsBool CMSEXPORT _cmsWriteUInt8Number(cmsIOHANDLER* io, cmsUInt8Number n)
{
_cmsAssert(io != NULL);
if (io -> Write(io, sizeof(cmsUInt8Number), &n) != 1)
return FALSE;
return TRUE;
}
cmsBool CMSEXPORT _cmsWriteUInt16Number(cmsIOHANDLER* io, cmsUInt16Number n)
{
cmsUInt16Number tmp;
_cmsAssert(io != NULL);
tmp = _cmsAdjustEndianess16(n);
if (io -> Write(io, sizeof(cmsUInt16Number), &tmp) != 1)
return FALSE;
return TRUE;
}
cmsBool CMSEXPORT _cmsWriteUInt16Array(cmsIOHANDLER* io, cmsUInt32Number n, const cmsUInt16Number* Array)
{
cmsUInt32Number i;
_cmsAssert(io != NULL);
_cmsAssert(Array != NULL);
for (i=0; i < n; i++) {
if (!_cmsWriteUInt16Number(io, Array[i])) return FALSE;
}
return TRUE;
}
cmsBool CMSEXPORT _cmsWriteUInt32Number(cmsIOHANDLER* io, cmsUInt32Number n)
{
cmsUInt32Number tmp;
_cmsAssert(io != NULL);
tmp = _cmsAdjustEndianess32(n);
if (io -> Write(io, sizeof(cmsUInt32Number), &tmp) != 1)
return FALSE;
return TRUE;
}
cmsBool CMSEXPORT _cmsWriteFloat32Number(cmsIOHANDLER* io, cmsFloat32Number n)
{
cmsUInt32Number tmp;
_cmsAssert(io != NULL);
tmp = *(cmsUInt32Number*) &n;
tmp = _cmsAdjustEndianess32(tmp);
if (io -> Write(io, sizeof(cmsUInt32Number), &tmp) != 1)
return FALSE;
return TRUE;
}
cmsBool CMSEXPORT _cmsWriteUInt64Number(cmsIOHANDLER* io, cmsUInt64Number* n)
{
cmsUInt64Number tmp;
_cmsAssert(io != NULL);
_cmsAdjustEndianess64(&tmp, n);
if (io -> Write(io, sizeof(cmsUInt64Number), &tmp) != 1)
return FALSE;
return TRUE;
}
cmsBool CMSEXPORT _cmsWrite15Fixed16Number(cmsIOHANDLER* io, cmsFloat64Number n)
{
cmsUInt32Number tmp;
_cmsAssert(io != NULL);
tmp = _cmsAdjustEndianess32(_cmsDoubleTo15Fixed16(n));
if (io -> Write(io, sizeof(cmsUInt32Number), &tmp) != 1)
return FALSE;
return TRUE;
}
cmsBool CMSEXPORT _cmsWriteXYZNumber(cmsIOHANDLER* io, const cmsCIEXYZ* XYZ)
{
cmsEncodedXYZNumber xyz;
_cmsAssert(io != NULL);
_cmsAssert(XYZ != NULL);
xyz.X = _cmsAdjustEndianess32(_cmsDoubleTo15Fixed16(XYZ->X));
xyz.Y = _cmsAdjustEndianess32(_cmsDoubleTo15Fixed16(XYZ->Y));
xyz.Z = _cmsAdjustEndianess32(_cmsDoubleTo15Fixed16(XYZ->Z));
return io -> Write(io, sizeof(cmsEncodedXYZNumber), &xyz);
}
// from Fixed point 8.8 to double
cmsFloat64Number CMSEXPORT _cms8Fixed8toDouble(cmsUInt16Number fixed8)
{
cmsUInt8Number msb, lsb;
lsb = (cmsUInt8Number) (fixed8 & 0xff);
msb = (cmsUInt8Number) (((cmsUInt16Number) fixed8 >> 8) & 0xff);
return (cmsFloat64Number) ((cmsFloat64Number) msb + ((cmsFloat64Number) lsb / 256.0));
}
cmsUInt16Number CMSEXPORT _cmsDoubleTo8Fixed8(cmsFloat64Number val)
{
cmsS15Fixed16Number GammaFixed32 = _cmsDoubleTo15Fixed16(val);
return (cmsUInt16Number) ((GammaFixed32 >> 8) & 0xFFFF);
}
// from Fixed point 15.16 to double
cmsFloat64Number CMSEXPORT _cms15Fixed16toDouble(cmsS15Fixed16Number fix32)
{
cmsFloat64Number floater, sign, mid;
int Whole, FracPart;
sign = (fix32 < 0 ? -1 : 1);
fix32 = abs(fix32);
Whole = (cmsUInt16Number)(fix32 >> 16) & 0xffff;
FracPart = (cmsUInt16Number)(fix32 & 0xffff);
mid = (cmsFloat64Number) FracPart / 65536.0;
floater = (cmsFloat64Number) Whole + mid;
return sign * floater;
}
// from double to Fixed point 15.16
cmsS15Fixed16Number CMSEXPORT _cmsDoubleTo15Fixed16(cmsFloat64Number v)
{
return ((cmsS15Fixed16Number) floor((v)*65536.0 + 0.5));
}
// Date/Time functions
void CMSEXPORT _cmsDecodeDateTimeNumber(const cmsDateTimeNumber *Source, struct tm *Dest)
{
_cmsAssert(Dest != NULL);
_cmsAssert(Source != NULL);
Dest->tm_sec = _cmsAdjustEndianess16(Source->seconds);
Dest->tm_min = _cmsAdjustEndianess16(Source->minutes);
Dest->tm_hour = _cmsAdjustEndianess16(Source->hours);
Dest->tm_mday = _cmsAdjustEndianess16(Source->day);
Dest->tm_mon = _cmsAdjustEndianess16(Source->month) - 1;
Dest->tm_year = _cmsAdjustEndianess16(Source->year) - 1900;
Dest->tm_wday = -1;
Dest->tm_yday = -1;
Dest->tm_isdst = 0;
}
void CMSEXPORT _cmsEncodeDateTimeNumber(cmsDateTimeNumber *Dest, const struct tm *Source)
{
_cmsAssert(Dest != NULL);
_cmsAssert(Source != NULL);
Dest->seconds = _cmsAdjustEndianess16((cmsUInt16Number) Source->tm_sec);
Dest->minutes = _cmsAdjustEndianess16((cmsUInt16Number) Source->tm_min);
Dest->hours = _cmsAdjustEndianess16((cmsUInt16Number) Source->tm_hour);
Dest->day = _cmsAdjustEndianess16((cmsUInt16Number) Source->tm_mday);
Dest->month = _cmsAdjustEndianess16((cmsUInt16Number) (Source->tm_mon + 1));
Dest->year = _cmsAdjustEndianess16((cmsUInt16Number) (Source->tm_year + 1900));
}
// Read base and return type base
cmsTagTypeSignature CMSEXPORT _cmsReadTypeBase(cmsIOHANDLER* io)
{
_cmsTagBase Base;
_cmsAssert(io != NULL);
if (io -> Read(io, &Base, sizeof(_cmsTagBase), 1) != 1)
return (cmsTagTypeSignature) 0;
return (cmsTagTypeSignature) _cmsAdjustEndianess32(Base.sig);
}
// Setup base marker
cmsBool CMSEXPORT _cmsWriteTypeBase(cmsIOHANDLER* io, cmsTagTypeSignature sig)
{
_cmsTagBase Base;
_cmsAssert(io != NULL);
Base.sig = (cmsTagTypeSignature) _cmsAdjustEndianess32(sig);
memset(&Base.reserved, 0, sizeof(Base.reserved));
return io -> Write(io, sizeof(_cmsTagBase), &Base);
}
cmsBool CMSEXPORT _cmsReadAlignment(cmsIOHANDLER* io)
{
cmsUInt8Number Buffer[4];
cmsUInt32Number NextAligned, At;
cmsUInt32Number BytesToNextAlignedPos;
_cmsAssert(io != NULL);
At = io -> Tell(io);
NextAligned = _cmsALIGNLONG(At);
BytesToNextAlignedPos = NextAligned - At;
if (BytesToNextAlignedPos == 0) return TRUE;
if (BytesToNextAlignedPos > 4) return FALSE;
return (io ->Read(io, Buffer, BytesToNextAlignedPos, 1) == 1);
}
cmsBool CMSEXPORT _cmsWriteAlignment(cmsIOHANDLER* io)
{
cmsUInt8Number Buffer[4];
cmsUInt32Number NextAligned, At;
cmsUInt32Number BytesToNextAlignedPos;
_cmsAssert(io != NULL);
At = io -> Tell(io);
NextAligned = _cmsALIGNLONG(At);
BytesToNextAlignedPos = NextAligned - At;
if (BytesToNextAlignedPos == 0) return TRUE;
if (BytesToNextAlignedPos > 4) return FALSE;
memset(Buffer, 0, BytesToNextAlignedPos);
return io -> Write(io, BytesToNextAlignedPos, Buffer);
}
// To deal with text streams. 2K at most
cmsBool CMSEXPORT _cmsIOPrintf(cmsIOHANDLER* io, const char* frm, ...)
{
va_list args;
int len;
cmsUInt8Number Buffer[2048];
cmsBool rc;
_cmsAssert(io != NULL);
_cmsAssert(frm != NULL);
va_start(args, frm);
len = vsnprintf((char*) Buffer, 2047, frm, args);
if (len < 0) return FALSE; // Truncated, which is a fatal error for us
rc = io ->Write(io, len, Buffer);
va_end(args);
return rc;
}
// Plugin memory management -------------------------------------------------------------------------------------------------
static _cmsSubAllocator* PluginPool = NULL;
// Specialized malloc for plug-ins, that is freed upon exit.
void* _cmsPluginMalloc(cmsContext id, cmsUInt32Number size)
{
if (PluginPool == NULL)
PluginPool = _cmsCreateSubAlloc(id, 4*1024);
return _cmsSubAlloc(PluginPool, size);
}
// Main plug-in dispatcher
cmsBool CMSEXPORT cmsPlugin(void* Plug_in)
{
return cmsPluginTHR(NULL, Plug_in);
}
cmsBool CMSEXPORT cmsPluginTHR(cmsContext id, void* Plug_in)
{
cmsPluginBase* Plugin;
for (Plugin = (cmsPluginBase*) Plug_in;
Plugin != NULL;
Plugin = Plugin -> Next) {
if (Plugin -> Magic != cmsPluginMagicNumber) {
cmsSignalError(0, cmsERROR_UNKNOWN_EXTENSION, "Unrecognized plugin");
return FALSE;
}
if (Plugin ->ExpectedVersion > LCMS_VERSION) {
cmsSignalError(0, cmsERROR_UNKNOWN_EXTENSION, "plugin needs Little CMS %d, current version is %d",
Plugin ->ExpectedVersion, LCMS_VERSION);
return FALSE;
}
switch (Plugin -> Type) {
case cmsPluginMemHandlerSig:
if (!_cmsRegisterMemHandlerPlugin(Plugin)) return FALSE;
break;
case cmsPluginInterpolationSig:
if (!_cmsRegisterInterpPlugin(Plugin)) return FALSE;
break;
case cmsPluginTagTypeSig:
if (!_cmsRegisterTagTypePlugin(id, Plugin)) return FALSE;
break;
case cmsPluginTagSig:
if (!_cmsRegisterTagPlugin(id, Plugin)) return FALSE;
break;
case cmsPluginFormattersSig:
if (!_cmsRegisterFormattersPlugin(id, Plugin)) return FALSE;
break;
case cmsPluginRenderingIntentSig:
if (!_cmsRegisterRenderingIntentPlugin(id, Plugin)) return FALSE;
break;
case cmsPluginParametricCurveSig:
if (!_cmsRegisterParametricCurvesPlugin(id, Plugin)) return FALSE;
break;
case cmsPluginMultiProcessElementSig:
if (!_cmsRegisterMultiProcessElementPlugin(id, Plugin)) return FALSE;
break;
case cmsPluginOptimizationSig:
if (!_cmsRegisterOptimizationPlugin(id, Plugin)) return FALSE;
break;
case cmsPluginTransformSig:
if (!_cmsRegisterTransformPlugin(id, Plugin)) return FALSE;
break;
default:
cmsSignalError(0, cmsERROR_UNKNOWN_EXTENSION, "Unrecognized plugin type '%X'", Plugin -> Type);
return FALSE;
}
}
// Keep a reference to the plug-in
return TRUE;
}
// Revert all plug-ins to default
void CMSEXPORT cmsUnregisterPlugins(void)
{
_cmsRegisterMemHandlerPlugin(NULL);
_cmsRegisterInterpPlugin(NULL);
_cmsRegisterTagTypePlugin(NULL, NULL);
_cmsRegisterTagPlugin(NULL, NULL);
_cmsRegisterFormattersPlugin(NULL, NULL);
_cmsRegisterRenderingIntentPlugin(NULL, NULL);
_cmsRegisterParametricCurvesPlugin(NULL, NULL);
_cmsRegisterMultiProcessElementPlugin(NULL, NULL);
_cmsRegisterOptimizationPlugin(NULL, NULL);
_cmsRegisterTransformPlugin(NULL, NULL);
if (PluginPool != NULL)
_cmsSubAllocDestroy(PluginPool);
PluginPool = NULL;
}
|
52 | ./little-cms/src/cmsio0.c | //---------------------------------------------------------------------------------
//
// Little Color Management System
// Copyright (c) 1998-2012 Marti Maria Saguer
//
// Permission is hereby granted, free of charge, to any person obtaining
// a copy of this software and associated documentation files (the "Software"),
// to deal in the Software without restriction, including without limitation
// the rights to use, copy, modify, merge, publish, distribute, sublicense,
// and/or sell copies of the Software, and to permit persons to whom the Software
// is furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO
// THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
// LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
// OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
// WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
//
//---------------------------------------------------------------------------------
//
#include "lcms2_internal.h"
// Generic I/O, tag dictionary management, profile struct
// IOhandlers are abstractions used by littleCMS to read from whatever file, stream,
// memory block or any storage. Each IOhandler provides implementations for read,
// write, seek and tell functions. LittleCMS code deals with IO across those objects.
// In this way, is easier to add support for new storage media.
// NULL stream, for taking care of used space -------------------------------------
// NULL IOhandler basically does nothing but keep track on how many bytes have been
// written. This is handy when creating profiles, where the file size is needed in the
// header. Then, whole profile is serialized across NULL IOhandler and a second pass
// writes the bytes to the pertinent IOhandler.
typedef struct {
cmsUInt32Number Pointer; // Points to current location
} FILENULL;
static
cmsUInt32Number NULLRead(cmsIOHANDLER* iohandler, void *Buffer, cmsUInt32Number size, cmsUInt32Number count)
{
FILENULL* ResData = (FILENULL*) iohandler ->stream;
cmsUInt32Number len = size * count;
ResData -> Pointer += len;
return count;
cmsUNUSED_PARAMETER(Buffer);
}
static
cmsBool NULLSeek(cmsIOHANDLER* iohandler, cmsUInt32Number offset)
{
FILENULL* ResData = (FILENULL*) iohandler ->stream;
ResData ->Pointer = offset;
return TRUE;
}
static
cmsUInt32Number NULLTell(cmsIOHANDLER* iohandler)
{
FILENULL* ResData = (FILENULL*) iohandler ->stream;
return ResData -> Pointer;
}
static
cmsBool NULLWrite(cmsIOHANDLER* iohandler, cmsUInt32Number size, const void *Ptr)
{
FILENULL* ResData = (FILENULL*) iohandler ->stream;
ResData ->Pointer += size;
if (ResData ->Pointer > iohandler->UsedSpace)
iohandler->UsedSpace = ResData ->Pointer;
return TRUE;
cmsUNUSED_PARAMETER(Ptr);
}
static
cmsBool NULLClose(cmsIOHANDLER* iohandler)
{
FILENULL* ResData = (FILENULL*) iohandler ->stream;
_cmsFree(iohandler ->ContextID, ResData);
_cmsFree(iohandler ->ContextID, iohandler);
return TRUE;
}
// The NULL IOhandler creator
cmsIOHANDLER* CMSEXPORT cmsOpenIOhandlerFromNULL(cmsContext ContextID)
{
struct _cms_io_handler* iohandler = NULL;
FILENULL* fm = NULL;
iohandler = (struct _cms_io_handler*) _cmsMallocZero(ContextID, sizeof(struct _cms_io_handler));
if (iohandler == NULL) return NULL;
fm = (FILENULL*) _cmsMallocZero(ContextID, sizeof(FILENULL));
if (fm == NULL) goto Error;
fm ->Pointer = 0;
iohandler ->ContextID = ContextID;
iohandler ->stream = (void*) fm;
iohandler ->UsedSpace = 0;
iohandler ->ReportedSize = 0;
iohandler ->PhysicalFile[0] = 0;
iohandler ->Read = NULLRead;
iohandler ->Seek = NULLSeek;
iohandler ->Close = NULLClose;
iohandler ->Tell = NULLTell;
iohandler ->Write = NULLWrite;
return iohandler;
Error:
if (iohandler) _cmsFree(ContextID, iohandler);
return NULL;
}
// Memory-based stream --------------------------------------------------------------
// Those functions implements an iohandler which takes a block of memory as storage medium.
typedef struct {
cmsUInt8Number* Block; // Points to allocated memory
cmsUInt32Number Size; // Size of allocated memory
cmsUInt32Number Pointer; // Points to current location
int FreeBlockOnClose; // As title
} FILEMEM;
static
cmsUInt32Number MemoryRead(struct _cms_io_handler* iohandler, void *Buffer, cmsUInt32Number size, cmsUInt32Number count)
{
FILEMEM* ResData = (FILEMEM*) iohandler ->stream;
cmsUInt8Number* Ptr;
cmsUInt32Number len = size * count;
if (ResData -> Pointer + len > ResData -> Size){
len = (ResData -> Size - ResData -> Pointer);
cmsSignalError(iohandler ->ContextID, cmsERROR_READ, "Read from memory error. Got %d bytes, block should be of %d bytes", len, count * size);
return 0;
}
Ptr = ResData -> Block;
Ptr += ResData -> Pointer;
memmove(Buffer, Ptr, len);
ResData -> Pointer += len;
return count;
}
// SEEK_CUR is assumed
static
cmsBool MemorySeek(struct _cms_io_handler* iohandler, cmsUInt32Number offset)
{
FILEMEM* ResData = (FILEMEM*) iohandler ->stream;
if (offset > ResData ->Size) {
cmsSignalError(iohandler ->ContextID, cmsERROR_SEEK, "Too few data; probably corrupted profile");
return FALSE;
}
ResData ->Pointer = offset;
return TRUE;
}
// Tell for memory
static
cmsUInt32Number MemoryTell(struct _cms_io_handler* iohandler)
{
FILEMEM* ResData = (FILEMEM*) iohandler ->stream;
if (ResData == NULL) return 0;
return ResData -> Pointer;
}
// Writes data to memory, also keeps used space for further reference.
static
cmsBool MemoryWrite(struct _cms_io_handler* iohandler, cmsUInt32Number size, const void *Ptr)
{
FILEMEM* ResData = (FILEMEM*) iohandler ->stream;
if (ResData == NULL) return FALSE; // Housekeeping
// Check for available space. Clip.
if (iohandler ->UsedSpace + size > ResData->Size) {
size = ResData ->Size - iohandler ->UsedSpace;
}
if (size == 0) return TRUE; // Write zero bytes is ok, but does nothing
memmove(ResData ->Block + ResData ->Pointer, Ptr, size);
ResData ->Pointer += size;
iohandler->UsedSpace += size;
if (ResData ->Pointer > iohandler->UsedSpace)
iohandler->UsedSpace = ResData ->Pointer;
return TRUE;
}
static
cmsBool MemoryClose(struct _cms_io_handler* iohandler)
{
FILEMEM* ResData = (FILEMEM*) iohandler ->stream;
if (ResData ->FreeBlockOnClose) {
if (ResData ->Block) _cmsFree(iohandler ->ContextID, ResData ->Block);
}
_cmsFree(iohandler ->ContextID, ResData);
_cmsFree(iohandler ->ContextID, iohandler);
return TRUE;
}
// Create a iohandler for memory block. AccessMode=='r' assumes the iohandler is going to read, and makes
// a copy of the memory block for letting user to free the memory after invoking open profile. In write
// mode ("w"), Buffere points to the begin of memory block to be written.
cmsIOHANDLER* CMSEXPORT cmsOpenIOhandlerFromMem(cmsContext ContextID, void *Buffer, cmsUInt32Number size, const char* AccessMode)
{
cmsIOHANDLER* iohandler = NULL;
FILEMEM* fm = NULL;
_cmsAssert(AccessMode != NULL);
iohandler = (cmsIOHANDLER*) _cmsMallocZero(ContextID, sizeof(cmsIOHANDLER));
if (iohandler == NULL) return NULL;
switch (*AccessMode) {
case 'r':
fm = (FILEMEM*) _cmsMallocZero(ContextID, sizeof(FILEMEM));
if (fm == NULL) goto Error;
if (Buffer == NULL) {
cmsSignalError(ContextID, cmsERROR_READ, "Couldn't read profile from NULL pointer");
goto Error;
}
fm ->Block = (cmsUInt8Number*) _cmsMalloc(ContextID, size);
if (fm ->Block == NULL) {
_cmsFree(ContextID, fm);
_cmsFree(ContextID, iohandler);
cmsSignalError(ContextID, cmsERROR_READ, "Couldn't allocate %ld bytes for profile", size);
return NULL;
}
memmove(fm->Block, Buffer, size);
fm ->FreeBlockOnClose = TRUE;
fm ->Size = size;
fm ->Pointer = 0;
iohandler -> ReportedSize = size;
break;
case 'w':
fm = (FILEMEM*) _cmsMallocZero(ContextID, sizeof(FILEMEM));
if (fm == NULL) goto Error;
fm ->Block = (cmsUInt8Number*) Buffer;
fm ->FreeBlockOnClose = FALSE;
fm ->Size = size;
fm ->Pointer = 0;
iohandler -> ReportedSize = 0;
break;
default:
cmsSignalError(ContextID, cmsERROR_UNKNOWN_EXTENSION, "Unknown access mode '%c'", *AccessMode);
return NULL;
}
iohandler ->ContextID = ContextID;
iohandler ->stream = (void*) fm;
iohandler ->UsedSpace = 0;
iohandler ->PhysicalFile[0] = 0;
iohandler ->Read = MemoryRead;
iohandler ->Seek = MemorySeek;
iohandler ->Close = MemoryClose;
iohandler ->Tell = MemoryTell;
iohandler ->Write = MemoryWrite;
return iohandler;
Error:
if (fm) _cmsFree(ContextID, fm);
if (iohandler) _cmsFree(ContextID, iohandler);
return NULL;
}
// File-based stream -------------------------------------------------------
// Read count elements of size bytes each. Return number of elements read
static
cmsUInt32Number FileRead(cmsIOHANDLER* iohandler, void *Buffer, cmsUInt32Number size, cmsUInt32Number count)
{
cmsUInt32Number nReaded = (cmsUInt32Number) fread(Buffer, size, count, (FILE*) iohandler->stream);
if (nReaded != count) {
cmsSignalError(iohandler ->ContextID, cmsERROR_FILE, "Read error. Got %d bytes, block should be of %d bytes", nReaded * size, count * size);
return 0;
}
return nReaded;
}
// Postion file pointer in the file
static
cmsBool FileSeek(cmsIOHANDLER* iohandler, cmsUInt32Number offset)
{
if (fseek((FILE*) iohandler ->stream, (long) offset, SEEK_SET) != 0) {
cmsSignalError(iohandler ->ContextID, cmsERROR_FILE, "Seek error; probably corrupted file");
return FALSE;
}
return TRUE;
}
// Returns file pointer position
static
cmsUInt32Number FileTell(cmsIOHANDLER* iohandler)
{
return ftell((FILE*)iohandler ->stream);
}
// Writes data to stream, also keeps used space for further reference. Returns TRUE on success, FALSE on error
static
cmsBool FileWrite(cmsIOHANDLER* iohandler, cmsUInt32Number size, const void* Buffer)
{
if (size == 0) return TRUE; // We allow to write 0 bytes, but nothing is written
iohandler->UsedSpace += size;
return (fwrite(Buffer, size, 1, (FILE*) iohandler->stream) == 1);
}
// Closes the file
static
cmsBool FileClose(cmsIOHANDLER* iohandler)
{
if (fclose((FILE*) iohandler ->stream) != 0) return FALSE;
_cmsFree(iohandler ->ContextID, iohandler);
return TRUE;
}
// Create a iohandler for disk based files.
cmsIOHANDLER* CMSEXPORT cmsOpenIOhandlerFromFile(cmsContext ContextID, const char* FileName, const char* AccessMode)
{
cmsIOHANDLER* iohandler = NULL;
FILE* fm = NULL;
_cmsAssert(FileName != NULL);
_cmsAssert(AccessMode != NULL);
iohandler = (cmsIOHANDLER*) _cmsMallocZero(ContextID, sizeof(cmsIOHANDLER));
if (iohandler == NULL) return NULL;
switch (*AccessMode) {
case 'r':
fm = fopen(FileName, "rb");
if (fm == NULL) {
_cmsFree(ContextID, iohandler);
cmsSignalError(ContextID, cmsERROR_FILE, "File '%s' not found", FileName);
return NULL;
}
iohandler -> ReportedSize = cmsfilelength(fm);
break;
case 'w':
fm = fopen(FileName, "wb");
if (fm == NULL) {
_cmsFree(ContextID, iohandler);
cmsSignalError(ContextID, cmsERROR_FILE, "Couldn't create '%s'", FileName);
return NULL;
}
iohandler -> ReportedSize = 0;
break;
default:
_cmsFree(ContextID, iohandler);
cmsSignalError(ContextID, cmsERROR_FILE, "Unknown access mode '%c'", *AccessMode);
return NULL;
}
iohandler ->ContextID = ContextID;
iohandler ->stream = (void*) fm;
iohandler ->UsedSpace = 0;
// Keep track of the original file
strncpy(iohandler -> PhysicalFile, FileName, sizeof(iohandler -> PhysicalFile)-1);
iohandler -> PhysicalFile[sizeof(iohandler -> PhysicalFile)-1] = 0;
iohandler ->Read = FileRead;
iohandler ->Seek = FileSeek;
iohandler ->Close = FileClose;
iohandler ->Tell = FileTell;
iohandler ->Write = FileWrite;
return iohandler;
}
// Create a iohandler for stream based files
cmsIOHANDLER* CMSEXPORT cmsOpenIOhandlerFromStream(cmsContext ContextID, FILE* Stream)
{
cmsIOHANDLER* iohandler = NULL;
iohandler = (cmsIOHANDLER*) _cmsMallocZero(ContextID, sizeof(cmsIOHANDLER));
if (iohandler == NULL) return NULL;
iohandler -> ContextID = ContextID;
iohandler -> stream = (void*) Stream;
iohandler -> UsedSpace = 0;
iohandler -> ReportedSize = cmsfilelength(Stream);
iohandler -> PhysicalFile[0] = 0;
iohandler ->Read = FileRead;
iohandler ->Seek = FileSeek;
iohandler ->Close = FileClose;
iohandler ->Tell = FileTell;
iohandler ->Write = FileWrite;
return iohandler;
}
// Close an open IO handler
cmsBool CMSEXPORT cmsCloseIOhandler(cmsIOHANDLER* io)
{
return io -> Close(io);
}
// -------------------------------------------------------------------------------------------------------
// Creates an empty structure holding all required parameters
cmsHPROFILE CMSEXPORT cmsCreateProfilePlaceholder(cmsContext ContextID)
{
time_t now = time(NULL);
_cmsICCPROFILE* Icc = (_cmsICCPROFILE*) _cmsMallocZero(ContextID, sizeof(_cmsICCPROFILE));
if (Icc == NULL) return NULL;
Icc ->ContextID = ContextID;
// Set it to empty
Icc -> TagCount = 0;
// Set default version
Icc ->Version = 0x02100000;
// Set creation date/time
memmove(&Icc ->Created, gmtime(&now), sizeof(Icc ->Created));
// Return the handle
return (cmsHPROFILE) Icc;
}
cmsContext CMSEXPORT cmsGetProfileContextID(cmsHPROFILE hProfile)
{
_cmsICCPROFILE* Icc = (_cmsICCPROFILE*) hProfile;
if (Icc == NULL) return NULL;
return Icc -> ContextID;
}
// Return the number of tags
cmsInt32Number CMSEXPORT cmsGetTagCount(cmsHPROFILE hProfile)
{
_cmsICCPROFILE* Icc = (_cmsICCPROFILE*) hProfile;
if (Icc == NULL) return -1;
return Icc->TagCount;
}
// Return the tag signature of a given tag number
cmsTagSignature CMSEXPORT cmsGetTagSignature(cmsHPROFILE hProfile, cmsUInt32Number n)
{
_cmsICCPROFILE* Icc = (_cmsICCPROFILE*) hProfile;
if (n > Icc->TagCount) return (cmsTagSignature) 0; // Mark as not available
if (n >= MAX_TABLE_TAG) return (cmsTagSignature) 0; // As double check
return Icc ->TagNames[n];
}
static
int SearchOneTag(_cmsICCPROFILE* Profile, cmsTagSignature sig)
{
cmsUInt32Number i;
for (i=0; i < Profile -> TagCount; i++) {
if (sig == Profile -> TagNames[i])
return i;
}
return -1;
}
// Search for a specific tag in tag dictionary. Returns position or -1 if tag not found.
// If followlinks is turned on, then the position of the linked tag is returned
int _cmsSearchTag(_cmsICCPROFILE* Icc, cmsTagSignature sig, cmsBool lFollowLinks)
{
int n;
cmsTagSignature LinkedSig;
do {
// Search for given tag in ICC profile directory
n = SearchOneTag(Icc, sig);
if (n < 0)
return -1; // Not found
if (!lFollowLinks)
return n; // Found, don't follow links
// Is this a linked tag?
LinkedSig = Icc ->TagLinked[n];
// Yes, follow link
if (LinkedSig != (cmsTagSignature) 0) {
sig = LinkedSig;
}
} while (LinkedSig != (cmsTagSignature) 0);
return n;
}
// Create a new tag entry
static
cmsBool _cmsNewTag(_cmsICCPROFILE* Icc, cmsTagSignature sig, int* NewPos)
{
int i;
// Search for the tag
i = _cmsSearchTag(Icc, sig, FALSE);
// Now let's do it easy. If the tag has been already written, that's an error
if (i >= 0) {
cmsSignalError(Icc ->ContextID, cmsERROR_ALREADY_DEFINED, "Tag '%x' already exists", sig);
return FALSE;
}
else {
// New one
if (Icc -> TagCount >= MAX_TABLE_TAG) {
cmsSignalError(Icc ->ContextID, cmsERROR_RANGE, "Too many tags (%d)", MAX_TABLE_TAG);
return FALSE;
}
*NewPos = Icc ->TagCount;
Icc -> TagCount++;
}
return TRUE;
}
// Check existance
cmsBool CMSEXPORT cmsIsTag(cmsHPROFILE hProfile, cmsTagSignature sig)
{
_cmsICCPROFILE* Icc = (_cmsICCPROFILE*) (void*) hProfile;
return _cmsSearchTag(Icc, sig, FALSE) >= 0;
}
// Read profile header and validate it
cmsBool _cmsReadHeader(_cmsICCPROFILE* Icc)
{
cmsTagEntry Tag;
cmsICCHeader Header;
cmsUInt32Number i, j;
cmsUInt32Number HeaderSize;
cmsIOHANDLER* io = Icc ->IOhandler;
cmsUInt32Number TagCount;
// Read the header
if (io -> Read(io, &Header, sizeof(cmsICCHeader), 1) != 1) {
return FALSE;
}
// Validate file as an ICC profile
if (_cmsAdjustEndianess32(Header.magic) != cmsMagicNumber) {
cmsSignalError(Icc ->ContextID, cmsERROR_BAD_SIGNATURE, "not an ICC profile, invalid signature");
return FALSE;
}
// Adjust endianess of the used parameters
Icc -> DeviceClass = (cmsProfileClassSignature) _cmsAdjustEndianess32(Header.deviceClass);
Icc -> ColorSpace = (cmsColorSpaceSignature) _cmsAdjustEndianess32(Header.colorSpace);
Icc -> PCS = (cmsColorSpaceSignature) _cmsAdjustEndianess32(Header.pcs);
Icc -> RenderingIntent = _cmsAdjustEndianess32(Header.renderingIntent);
Icc -> flags = _cmsAdjustEndianess32(Header.flags);
Icc -> manufacturer = _cmsAdjustEndianess32(Header.manufacturer);
Icc -> model = _cmsAdjustEndianess32(Header.model);
Icc -> creator = _cmsAdjustEndianess32(Header.creator);
_cmsAdjustEndianess64(&Icc -> attributes, &Header.attributes);
Icc -> Version = _cmsAdjustEndianess32(Header.version);
// Get size as reported in header
HeaderSize = _cmsAdjustEndianess32(Header.size);
// Make sure HeaderSize is lower than profile size
if (HeaderSize >= Icc ->IOhandler ->ReportedSize)
HeaderSize = Icc ->IOhandler ->ReportedSize;
// Get creation date/time
_cmsDecodeDateTimeNumber(&Header.date, &Icc ->Created);
// The profile ID are 32 raw bytes
memmove(Icc ->ProfileID.ID32, Header.profileID.ID32, 16);
// Read tag directory
if (!_cmsReadUInt32Number(io, &TagCount)) return FALSE;
if (TagCount > MAX_TABLE_TAG) {
cmsSignalError(Icc ->ContextID, cmsERROR_RANGE, "Too many tags (%d)", TagCount);
return FALSE;
}
// Read tag directory
Icc -> TagCount = 0;
for (i=0; i < TagCount; i++) {
if (!_cmsReadUInt32Number(io, (cmsUInt32Number *) &Tag.sig)) return FALSE;
if (!_cmsReadUInt32Number(io, &Tag.offset)) return FALSE;
if (!_cmsReadUInt32Number(io, &Tag.size)) return FALSE;
// Perform some sanity check. Offset + size should fall inside file.
if (Tag.offset + Tag.size > HeaderSize ||
Tag.offset + Tag.size < Tag.offset)
continue;
Icc -> TagNames[Icc ->TagCount] = Tag.sig;
Icc -> TagOffsets[Icc ->TagCount] = Tag.offset;
Icc -> TagSizes[Icc ->TagCount] = Tag.size;
// Search for links
for (j=0; j < Icc ->TagCount; j++) {
if ((Icc ->TagOffsets[j] == Tag.offset) &&
(Icc ->TagSizes[j] == Tag.size)) {
Icc ->TagLinked[Icc ->TagCount] = Icc ->TagNames[j];
}
}
Icc ->TagCount++;
}
return TRUE;
}
// Saves profile header
cmsBool _cmsWriteHeader(_cmsICCPROFILE* Icc, cmsUInt32Number UsedSpace)
{
cmsICCHeader Header;
cmsUInt32Number i;
cmsTagEntry Tag;
cmsInt32Number Count = 0;
Header.size = _cmsAdjustEndianess32(UsedSpace);
Header.cmmId = _cmsAdjustEndianess32(lcmsSignature);
Header.version = _cmsAdjustEndianess32(Icc ->Version);
Header.deviceClass = (cmsProfileClassSignature) _cmsAdjustEndianess32(Icc -> DeviceClass);
Header.colorSpace = (cmsColorSpaceSignature) _cmsAdjustEndianess32(Icc -> ColorSpace);
Header.pcs = (cmsColorSpaceSignature) _cmsAdjustEndianess32(Icc -> PCS);
// NOTE: in v4 Timestamp must be in UTC rather than in local time
_cmsEncodeDateTimeNumber(&Header.date, &Icc ->Created);
Header.magic = _cmsAdjustEndianess32(cmsMagicNumber);
#ifdef CMS_IS_WINDOWS_
Header.platform = (cmsPlatformSignature) _cmsAdjustEndianess32(cmsSigMicrosoft);
#else
Header.platform = (cmsPlatformSignature) _cmsAdjustEndianess32(cmsSigMacintosh);
#endif
Header.flags = _cmsAdjustEndianess32(Icc -> flags);
Header.manufacturer = _cmsAdjustEndianess32(Icc -> manufacturer);
Header.model = _cmsAdjustEndianess32(Icc -> model);
_cmsAdjustEndianess64(&Header.attributes, &Icc -> attributes);
// Rendering intent in the header (for embedded profiles)
Header.renderingIntent = _cmsAdjustEndianess32(Icc -> RenderingIntent);
// Illuminant is always D50
Header.illuminant.X = _cmsAdjustEndianess32(_cmsDoubleTo15Fixed16(cmsD50_XYZ()->X));
Header.illuminant.Y = _cmsAdjustEndianess32(_cmsDoubleTo15Fixed16(cmsD50_XYZ()->Y));
Header.illuminant.Z = _cmsAdjustEndianess32(_cmsDoubleTo15Fixed16(cmsD50_XYZ()->Z));
// Created by LittleCMS (that's me!)
Header.creator = _cmsAdjustEndianess32(lcmsSignature);
memset(&Header.reserved, 0, sizeof(Header.reserved));
// Set profile ID. Endianess is always big endian
memmove(&Header.profileID, &Icc ->ProfileID, 16);
// Dump the header
if (!Icc -> IOhandler->Write(Icc->IOhandler, sizeof(cmsICCHeader), &Header)) return FALSE;
// Saves Tag directory
// Get true count
for (i=0; i < Icc -> TagCount; i++) {
if (Icc ->TagNames[i] != 0)
Count++;
}
// Store number of tags
if (!_cmsWriteUInt32Number(Icc ->IOhandler, Count)) return FALSE;
for (i=0; i < Icc -> TagCount; i++) {
if (Icc ->TagNames[i] == 0) continue; // It is just a placeholder
Tag.sig = (cmsTagSignature) _cmsAdjustEndianess32((cmsInt32Number) Icc -> TagNames[i]);
Tag.offset = _cmsAdjustEndianess32((cmsInt32Number) Icc -> TagOffsets[i]);
Tag.size = _cmsAdjustEndianess32((cmsInt32Number) Icc -> TagSizes[i]);
if (!Icc ->IOhandler -> Write(Icc-> IOhandler, sizeof(cmsTagEntry), &Tag)) return FALSE;
}
return TRUE;
}
// ----------------------------------------------------------------------- Set/Get several struct members
cmsUInt32Number CMSEXPORT cmsGetHeaderRenderingIntent(cmsHPROFILE hProfile)
{
_cmsICCPROFILE* Icc = (_cmsICCPROFILE*) hProfile;
return Icc -> RenderingIntent;
}
void CMSEXPORT cmsSetHeaderRenderingIntent(cmsHPROFILE hProfile, cmsUInt32Number RenderingIntent)
{
_cmsICCPROFILE* Icc = (_cmsICCPROFILE*) hProfile;
Icc -> RenderingIntent = RenderingIntent;
}
cmsUInt32Number CMSEXPORT cmsGetHeaderFlags(cmsHPROFILE hProfile)
{
_cmsICCPROFILE* Icc = (_cmsICCPROFILE*) hProfile;
return (cmsUInt32Number) Icc -> flags;
}
void CMSEXPORT cmsSetHeaderFlags(cmsHPROFILE hProfile, cmsUInt32Number Flags)
{
_cmsICCPROFILE* Icc = (_cmsICCPROFILE*) hProfile;
Icc -> flags = (cmsUInt32Number) Flags;
}
cmsUInt32Number CMSEXPORT cmsGetHeaderManufacturer(cmsHPROFILE hProfile)
{
_cmsICCPROFILE* Icc = (_cmsICCPROFILE*) hProfile;
return Icc ->manufacturer;
}
void CMSEXPORT cmsSetHeaderManufacturer(cmsHPROFILE hProfile, cmsUInt32Number manufacturer)
{
_cmsICCPROFILE* Icc = (_cmsICCPROFILE*) hProfile;
Icc -> manufacturer = manufacturer;
}
cmsUInt32Number CMSEXPORT cmsGetHeaderCreator(cmsHPROFILE hProfile)
{
_cmsICCPROFILE* Icc = (_cmsICCPROFILE*) hProfile;
return Icc ->creator;
}
cmsUInt32Number CMSEXPORT cmsGetHeaderModel(cmsHPROFILE hProfile)
{
_cmsICCPROFILE* Icc = (_cmsICCPROFILE*) hProfile;
return Icc ->model;
}
void CMSEXPORT cmsSetHeaderModel(cmsHPROFILE hProfile, cmsUInt32Number model)
{
_cmsICCPROFILE* Icc = (_cmsICCPROFILE*) hProfile;
Icc -> model = model;
}
void CMSEXPORT cmsGetHeaderAttributes(cmsHPROFILE hProfile, cmsUInt64Number* Flags)
{
_cmsICCPROFILE* Icc = (_cmsICCPROFILE*) hProfile;
memmove(Flags, &Icc -> attributes, sizeof(cmsUInt64Number));
}
void CMSEXPORT cmsSetHeaderAttributes(cmsHPROFILE hProfile, cmsUInt64Number Flags)
{
_cmsICCPROFILE* Icc = (_cmsICCPROFILE*) hProfile;
memmove(&Icc -> attributes, &Flags, sizeof(cmsUInt64Number));
}
void CMSEXPORT cmsGetHeaderProfileID(cmsHPROFILE hProfile, cmsUInt8Number* ProfileID)
{
_cmsICCPROFILE* Icc = (_cmsICCPROFILE*) hProfile;
memmove(ProfileID, Icc ->ProfileID.ID8, 16);
}
void CMSEXPORT cmsSetHeaderProfileID(cmsHPROFILE hProfile, cmsUInt8Number* ProfileID)
{
_cmsICCPROFILE* Icc = (_cmsICCPROFILE*) hProfile;
memmove(&Icc -> ProfileID, ProfileID, 16);
}
cmsBool CMSEXPORT cmsGetHeaderCreationDateTime(cmsHPROFILE hProfile, struct tm *Dest)
{
_cmsICCPROFILE* Icc = (_cmsICCPROFILE*) hProfile;
memmove(Dest, &Icc ->Created, sizeof(struct tm));
return TRUE;
}
cmsColorSpaceSignature CMSEXPORT cmsGetPCS(cmsHPROFILE hProfile)
{
_cmsICCPROFILE* Icc = (_cmsICCPROFILE*) hProfile;
return Icc -> PCS;
}
void CMSEXPORT cmsSetPCS(cmsHPROFILE hProfile, cmsColorSpaceSignature pcs)
{
_cmsICCPROFILE* Icc = (_cmsICCPROFILE*) hProfile;
Icc -> PCS = pcs;
}
cmsColorSpaceSignature CMSEXPORT cmsGetColorSpace(cmsHPROFILE hProfile)
{
_cmsICCPROFILE* Icc = (_cmsICCPROFILE*) hProfile;
return Icc -> ColorSpace;
}
void CMSEXPORT cmsSetColorSpace(cmsHPROFILE hProfile, cmsColorSpaceSignature sig)
{
_cmsICCPROFILE* Icc = (_cmsICCPROFILE*) hProfile;
Icc -> ColorSpace = sig;
}
cmsProfileClassSignature CMSEXPORT cmsGetDeviceClass(cmsHPROFILE hProfile)
{
_cmsICCPROFILE* Icc = (_cmsICCPROFILE*) hProfile;
return Icc -> DeviceClass;
}
void CMSEXPORT cmsSetDeviceClass(cmsHPROFILE hProfile, cmsProfileClassSignature sig)
{
_cmsICCPROFILE* Icc = (_cmsICCPROFILE*) hProfile;
Icc -> DeviceClass = sig;
}
cmsUInt32Number CMSEXPORT cmsGetEncodedICCversion(cmsHPROFILE hProfile)
{
_cmsICCPROFILE* Icc = (_cmsICCPROFILE*) hProfile;
return Icc -> Version;
}
void CMSEXPORT cmsSetEncodedICCversion(cmsHPROFILE hProfile, cmsUInt32Number Version)
{
_cmsICCPROFILE* Icc = (_cmsICCPROFILE*) hProfile;
Icc -> Version = Version;
}
// Get an hexadecimal number with same digits as v
static
cmsUInt32Number BaseToBase(cmsUInt32Number in, int BaseIn, int BaseOut)
{
char Buff[100];
int i, len;
cmsUInt32Number out;
for (len=0; in > 0 && len < 100; len++) {
Buff[len] = (char) (in % BaseIn);
in /= BaseIn;
}
for (i=len-1, out=0; i >= 0; --i) {
out = out * BaseOut + Buff[i];
}
return out;
}
void CMSEXPORT cmsSetProfileVersion(cmsHPROFILE hProfile, cmsFloat64Number Version)
{
_cmsICCPROFILE* Icc = (_cmsICCPROFILE*) hProfile;
// 4.2 -> 0x4200000
Icc -> Version = BaseToBase((cmsUInt32Number) floor(Version * 100.0), 10, 16) << 16;
}
cmsFloat64Number CMSEXPORT cmsGetProfileVersion(cmsHPROFILE hProfile)
{
_cmsICCPROFILE* Icc = (_cmsICCPROFILE*) hProfile;
cmsUInt32Number n = Icc -> Version >> 16;
return BaseToBase(n, 16, 10) / 100.0;
}
// --------------------------------------------------------------------------------------------------------------
// Create profile from IOhandler
cmsHPROFILE CMSEXPORT cmsOpenProfileFromIOhandlerTHR(cmsContext ContextID, cmsIOHANDLER* io)
{
_cmsICCPROFILE* NewIcc;
cmsHPROFILE hEmpty = cmsCreateProfilePlaceholder(ContextID);
if (hEmpty == NULL) return NULL;
NewIcc = (_cmsICCPROFILE*) hEmpty;
NewIcc ->IOhandler = io;
if (!_cmsReadHeader(NewIcc)) goto Error;
return hEmpty;
Error:
cmsCloseProfile(hEmpty);
return NULL;
}
// Create profile from disk file
cmsHPROFILE CMSEXPORT cmsOpenProfileFromFileTHR(cmsContext ContextID, const char *lpFileName, const char *sAccess)
{
_cmsICCPROFILE* NewIcc;
cmsHPROFILE hEmpty = cmsCreateProfilePlaceholder(ContextID);
if (hEmpty == NULL) return NULL;
NewIcc = (_cmsICCPROFILE*) hEmpty;
NewIcc ->IOhandler = cmsOpenIOhandlerFromFile(ContextID, lpFileName, sAccess);
if (NewIcc ->IOhandler == NULL) goto Error;
if (*sAccess == 'W' || *sAccess == 'w') {
NewIcc -> IsWrite = TRUE;
return hEmpty;
}
if (!_cmsReadHeader(NewIcc)) goto Error;
return hEmpty;
Error:
cmsCloseProfile(hEmpty);
return NULL;
}
cmsHPROFILE CMSEXPORT cmsOpenProfileFromFile(const char *ICCProfile, const char *sAccess)
{
return cmsOpenProfileFromFileTHR(NULL, ICCProfile, sAccess);
}
cmsHPROFILE CMSEXPORT cmsOpenProfileFromStreamTHR(cmsContext ContextID, FILE* ICCProfile, const char *sAccess)
{
_cmsICCPROFILE* NewIcc;
cmsHPROFILE hEmpty = cmsCreateProfilePlaceholder(ContextID);
if (hEmpty == NULL) return NULL;
NewIcc = (_cmsICCPROFILE*) hEmpty;
NewIcc ->IOhandler = cmsOpenIOhandlerFromStream(ContextID, ICCProfile);
if (NewIcc ->IOhandler == NULL) goto Error;
if (*sAccess == 'w') {
NewIcc -> IsWrite = TRUE;
return hEmpty;
}
if (!_cmsReadHeader(NewIcc)) goto Error;
return hEmpty;
Error:
cmsCloseProfile(hEmpty);
return NULL;
}
cmsHPROFILE CMSEXPORT cmsOpenProfileFromStream(FILE* ICCProfile, const char *sAccess)
{
return cmsOpenProfileFromStreamTHR(NULL, ICCProfile, sAccess);
}
// Open from memory block
cmsHPROFILE CMSEXPORT cmsOpenProfileFromMemTHR(cmsContext ContextID, const void* MemPtr, cmsUInt32Number dwSize)
{
_cmsICCPROFILE* NewIcc;
cmsHPROFILE hEmpty;
hEmpty = cmsCreateProfilePlaceholder(ContextID);
if (hEmpty == NULL) return NULL;
NewIcc = (_cmsICCPROFILE*) hEmpty;
// Ok, in this case const void* is casted to void* just because open IO handler
// shares read and writting modes. Don't abuse this feature!
NewIcc ->IOhandler = cmsOpenIOhandlerFromMem(ContextID, (void*) MemPtr, dwSize, "r");
if (NewIcc ->IOhandler == NULL) goto Error;
if (!_cmsReadHeader(NewIcc)) goto Error;
return hEmpty;
Error:
cmsCloseProfile(hEmpty);
return NULL;
}
cmsHPROFILE CMSEXPORT cmsOpenProfileFromMem(const void* MemPtr, cmsUInt32Number dwSize)
{
return cmsOpenProfileFromMemTHR(NULL, MemPtr, dwSize);
}
// Dump tag contents. If the profile is being modified, untouched tags are copied from FileOrig
static
cmsBool SaveTags(_cmsICCPROFILE* Icc, _cmsICCPROFILE* FileOrig)
{
cmsUInt8Number* Data;
cmsUInt32Number i;
cmsUInt32Number Begin;
cmsIOHANDLER* io = Icc ->IOhandler;
cmsTagDescriptor* TagDescriptor;
cmsTagTypeSignature TypeBase;
cmsTagTypeSignature Type;
cmsTagTypeHandler* TypeHandler;
cmsFloat64Number Version = cmsGetProfileVersion((cmsHPROFILE) Icc);
cmsTagTypeHandler LocalTypeHandler;
for (i=0; i < Icc -> TagCount; i++) {
if (Icc ->TagNames[i] == 0) continue;
// Linked tags are not written
if (Icc ->TagLinked[i] != (cmsTagSignature) 0) continue;
Icc -> TagOffsets[i] = Begin = io ->UsedSpace;
Data = (cmsUInt8Number*) Icc -> TagPtrs[i];
if (!Data) {
// Reach here if we are copying a tag from a disk-based ICC profile which has not been modified by user.
// In this case a blind copy of the block data is performed
if (FileOrig != NULL && Icc -> TagOffsets[i]) {
cmsUInt32Number TagSize = FileOrig -> TagSizes[i];
cmsUInt32Number TagOffset = FileOrig -> TagOffsets[i];
void* Mem;
if (!FileOrig ->IOhandler->Seek(FileOrig ->IOhandler, TagOffset)) return FALSE;
Mem = _cmsMalloc(Icc ->ContextID, TagSize);
if (Mem == NULL) return FALSE;
if (FileOrig ->IOhandler->Read(FileOrig->IOhandler, Mem, TagSize, 1) != 1) return FALSE;
if (!io ->Write(io, TagSize, Mem)) return FALSE;
_cmsFree(Icc ->ContextID, Mem);
Icc -> TagSizes[i] = (io ->UsedSpace - Begin);
// Align to 32 bit boundary.
if (! _cmsWriteAlignment(io))
return FALSE;
}
continue;
}
// Should this tag be saved as RAW? If so, tagsizes should be specified in advance (no further cooking is done)
if (Icc ->TagSaveAsRaw[i]) {
if (io -> Write(io, Icc ->TagSizes[i], Data) != 1) return FALSE;
}
else {
// Search for support on this tag
TagDescriptor = _cmsGetTagDescriptor(Icc -> TagNames[i]);
if (TagDescriptor == NULL) continue; // Unsupported, ignore it
if (TagDescriptor ->DecideType != NULL) {
Type = TagDescriptor ->DecideType(Version, Data);
}
else {
Type = TagDescriptor ->SupportedTypes[0];
}
TypeHandler = _cmsGetTagTypeHandler(Type);
if (TypeHandler == NULL) {
cmsSignalError(Icc ->ContextID, cmsERROR_INTERNAL, "(Internal) no handler for tag %x", Icc -> TagNames[i]);
continue;
}
TypeBase = TypeHandler ->Signature;
if (!_cmsWriteTypeBase(io, TypeBase))
return FALSE;
LocalTypeHandler = *TypeHandler;
LocalTypeHandler.ContextID = Icc ->ContextID;
LocalTypeHandler.ICCVersion = Icc ->Version;
if (!LocalTypeHandler.WritePtr(&LocalTypeHandler, io, Data, TagDescriptor ->ElemCount)) {
char String[5];
_cmsTagSignature2String(String, (cmsTagSignature) TypeBase);
cmsSignalError(Icc ->ContextID, cmsERROR_WRITE, "Couldn't write type '%s'", String);
return FALSE;
}
}
Icc -> TagSizes[i] = (io ->UsedSpace - Begin);
// Align to 32 bit boundary.
if (! _cmsWriteAlignment(io))
return FALSE;
}
return TRUE;
}
// Fill the offset and size fields for all linked tags
static
cmsBool SetLinks( _cmsICCPROFILE* Icc)
{
cmsUInt32Number i;
for (i=0; i < Icc -> TagCount; i++) {
cmsTagSignature lnk = Icc ->TagLinked[i];
if (lnk != (cmsTagSignature) 0) {
int j = _cmsSearchTag(Icc, lnk, FALSE);
if (j >= 0) {
Icc ->TagOffsets[i] = Icc ->TagOffsets[j];
Icc ->TagSizes[i] = Icc ->TagSizes[j];
}
}
}
return TRUE;
}
// Low-level save to IOHANDLER. It returns the number of bytes used to
// store the profile, or zero on error. io may be NULL and in this case
// no data is written--only sizes are calculated
cmsUInt32Number CMSEXPORT cmsSaveProfileToIOhandler(cmsHPROFILE hProfile, cmsIOHANDLER* io)
{
_cmsICCPROFILE* Icc = (_cmsICCPROFILE*) hProfile;
_cmsICCPROFILE Keep;
cmsIOHANDLER* PrevIO;
cmsUInt32Number UsedSpace;
cmsContext ContextID;
memmove(&Keep, Icc, sizeof(_cmsICCPROFILE));
ContextID = cmsGetProfileContextID(hProfile);
PrevIO = Icc ->IOhandler = cmsOpenIOhandlerFromNULL(ContextID);
if (PrevIO == NULL) return 0;
// Pass #1 does compute offsets
if (!_cmsWriteHeader(Icc, 0)) return 0;
if (!SaveTags(Icc, &Keep)) return 0;
UsedSpace = PrevIO ->UsedSpace;
// Pass #2 does save to iohandler
if (io != NULL) {
Icc ->IOhandler = io;
if (!SetLinks(Icc)) goto CleanUp;
if (!_cmsWriteHeader(Icc, UsedSpace)) goto CleanUp;
if (!SaveTags(Icc, &Keep)) goto CleanUp;
}
memmove(Icc, &Keep, sizeof(_cmsICCPROFILE));
if (!cmsCloseIOhandler(PrevIO)) return 0;
return UsedSpace;
CleanUp:
cmsCloseIOhandler(PrevIO);
memmove(Icc, &Keep, sizeof(_cmsICCPROFILE));
return 0;
}
// Low-level save to disk.
cmsBool CMSEXPORT cmsSaveProfileToFile(cmsHPROFILE hProfile, const char* FileName)
{
cmsContext ContextID = cmsGetProfileContextID(hProfile);
cmsIOHANDLER* io = cmsOpenIOhandlerFromFile(ContextID, FileName, "w");
cmsBool rc;
if (io == NULL) return FALSE;
rc = (cmsSaveProfileToIOhandler(hProfile, io) != 0);
rc &= cmsCloseIOhandler(io);
if (rc == FALSE) { // remove() is C99 per 7.19.4.1
remove(FileName); // We have to IGNORE return value in this case
}
return rc;
}
// Same as anterior, but for streams
cmsBool CMSEXPORT cmsSaveProfileToStream(cmsHPROFILE hProfile, FILE* Stream)
{
cmsBool rc;
cmsContext ContextID = cmsGetProfileContextID(hProfile);
cmsIOHANDLER* io = cmsOpenIOhandlerFromStream(ContextID, Stream);
if (io == NULL) return FALSE;
rc = (cmsSaveProfileToIOhandler(hProfile, io) != 0);
rc &= cmsCloseIOhandler(io);
return rc;
}
// Same as anterior, but for memory blocks. In this case, a NULL as MemPtr means calculate needed space only
cmsBool CMSEXPORT cmsSaveProfileToMem(cmsHPROFILE hProfile, void *MemPtr, cmsUInt32Number* BytesNeeded)
{
cmsBool rc;
cmsIOHANDLER* io;
cmsContext ContextID = cmsGetProfileContextID(hProfile);
// Should we just calculate the needed space?
if (MemPtr == NULL) {
*BytesNeeded = cmsSaveProfileToIOhandler(hProfile, NULL);
return TRUE;
}
// That is a real write operation
io = cmsOpenIOhandlerFromMem(ContextID, MemPtr, *BytesNeeded, "w");
if (io == NULL) return FALSE;
rc = (cmsSaveProfileToIOhandler(hProfile, io) != 0);
rc &= cmsCloseIOhandler(io);
return rc;
}
// Closes a profile freeing any involved resources
cmsBool CMSEXPORT cmsCloseProfile(cmsHPROFILE hProfile)
{
_cmsICCPROFILE* Icc = (_cmsICCPROFILE*) hProfile;
cmsBool rc = TRUE;
cmsUInt32Number i;
if (!Icc) return FALSE;
// Was open in write mode?
if (Icc ->IsWrite) {
Icc ->IsWrite = FALSE; // Assure no further writting
rc &= cmsSaveProfileToFile(hProfile, Icc ->IOhandler->PhysicalFile);
}
for (i=0; i < Icc -> TagCount; i++) {
if (Icc -> TagPtrs[i]) {
cmsTagTypeHandler* TypeHandler = Icc ->TagTypeHandlers[i];
if (TypeHandler != NULL) {
cmsTagTypeHandler LocalTypeHandler = *TypeHandler;
LocalTypeHandler.ContextID = Icc ->ContextID; // As an additional parameters
LocalTypeHandler.ICCVersion = Icc ->Version;
LocalTypeHandler.FreePtr(&LocalTypeHandler, Icc -> TagPtrs[i]);
}
else
_cmsFree(Icc ->ContextID, Icc ->TagPtrs[i]);
}
}
if (Icc ->IOhandler != NULL) {
rc &= cmsCloseIOhandler(Icc->IOhandler);
}
_cmsFree(Icc ->ContextID, Icc); // Free placeholder memory
return rc;
}
// -------------------------------------------------------------------------------------------------------------------
// Returns TRUE if a given tag is supported by a plug-in
static
cmsBool IsTypeSupported(cmsTagDescriptor* TagDescriptor, cmsTagTypeSignature Type)
{
cmsUInt32Number i, nMaxTypes;
nMaxTypes = TagDescriptor->nSupportedTypes;
if (nMaxTypes >= MAX_TYPES_IN_LCMS_PLUGIN)
nMaxTypes = MAX_TYPES_IN_LCMS_PLUGIN;
for (i=0; i < nMaxTypes; i++) {
if (Type == TagDescriptor ->SupportedTypes[i]) return TRUE;
}
return FALSE;
}
// That's the main read function
void* CMSEXPORT cmsReadTag(cmsHPROFILE hProfile, cmsTagSignature sig)
{
_cmsICCPROFILE* Icc = (_cmsICCPROFILE*) hProfile;
cmsIOHANDLER* io = Icc ->IOhandler;
cmsTagTypeHandler* TypeHandler;
cmsTagTypeHandler LocalTypeHandler;
cmsTagDescriptor* TagDescriptor;
cmsTagTypeSignature BaseType;
cmsUInt32Number Offset, TagSize;
cmsUInt32Number ElemCount;
int n;
n = _cmsSearchTag(Icc, sig, TRUE);
if (n < 0) return NULL; // Not found, return NULL
// If the element is already in memory, return the pointer
if (Icc -> TagPtrs[n]) {
if (Icc ->TagSaveAsRaw[n]) return NULL; // We don't support read raw tags as cooked
return Icc -> TagPtrs[n];
}
// We need to read it. Get the offset and size to the file
Offset = Icc -> TagOffsets[n];
TagSize = Icc -> TagSizes[n];
// Seek to its location
if (!io -> Seek(io, Offset))
return NULL;
// Search for support on this tag
TagDescriptor = _cmsGetTagDescriptor(sig);
if (TagDescriptor == NULL) return NULL; // Unsupported.
// if supported, get type and check if in list
BaseType = _cmsReadTypeBase(io);
if (BaseType == 0) return NULL;
if (!IsTypeSupported(TagDescriptor, BaseType)) return NULL;
TagSize -= 8; // Alredy read by the type base logic
// Get type handler
TypeHandler = _cmsGetTagTypeHandler(BaseType);
if (TypeHandler == NULL) return NULL;
LocalTypeHandler = *TypeHandler;
// Read the tag
Icc -> TagTypeHandlers[n] = TypeHandler;
LocalTypeHandler.ContextID = Icc ->ContextID;
LocalTypeHandler.ICCVersion = Icc ->Version;
Icc -> TagPtrs[n] = LocalTypeHandler.ReadPtr(&LocalTypeHandler, io, &ElemCount, TagSize);
// The tag type is supported, but something wrong happend and we cannot read the tag.
// let know the user about this (although it is just a warning)
if (Icc -> TagPtrs[n] == NULL) {
char String[5];
_cmsTagSignature2String(String, sig);
cmsSignalError(Icc ->ContextID, cmsERROR_CORRUPTION_DETECTED, "Corrupted tag '%s'", String);
return NULL;
}
// This is a weird error that may be a symptom of something more serious, the number of
// stored item is actually less than the number of required elements.
if (ElemCount < TagDescriptor ->ElemCount) {
char String[5];
_cmsTagSignature2String(String, sig);
cmsSignalError(Icc ->ContextID, cmsERROR_CORRUPTION_DETECTED, "'%s' Inconsistent number of items: expected %d, got %d",
String, TagDescriptor ->ElemCount, ElemCount);
}
// Return the data
return Icc -> TagPtrs[n];
}
// Get true type of data
cmsTagTypeSignature _cmsGetTagTrueType(cmsHPROFILE hProfile, cmsTagSignature sig)
{
_cmsICCPROFILE* Icc = (_cmsICCPROFILE*) hProfile;
cmsTagTypeHandler* TypeHandler;
int n;
// Search for given tag in ICC profile directory
n = _cmsSearchTag(Icc, sig, TRUE);
if (n < 0) return (cmsTagTypeSignature) 0; // Not found, return NULL
// Get the handler. The true type is there
TypeHandler = Icc -> TagTypeHandlers[n];
return TypeHandler ->Signature;
}
// Write a single tag. This just keeps track of the tak into a list of "to be written". If the tag is already
// in that list, the previous version is deleted.
cmsBool CMSEXPORT cmsWriteTag(cmsHPROFILE hProfile, cmsTagSignature sig, const void* data)
{
_cmsICCPROFILE* Icc = (_cmsICCPROFILE*) hProfile;
cmsTagTypeHandler* TypeHandler = NULL;
cmsTagTypeHandler LocalTypeHandler;
cmsTagDescriptor* TagDescriptor = NULL;
cmsTagTypeSignature Type;
int i;
cmsFloat64Number Version;
char TypeString[5], SigString[5];
if (data == NULL) {
i = _cmsSearchTag(Icc, sig, FALSE);
if (i >= 0)
Icc ->TagNames[i] = (cmsTagSignature) 0;
// Unsupported by now, reserved for future ampliations (delete)
return FALSE;
}
i = _cmsSearchTag(Icc, sig, FALSE);
if (i >=0) {
if (Icc -> TagPtrs[i] != NULL) {
// Already exists. Free previous version
if (Icc ->TagSaveAsRaw[i]) {
_cmsFree(Icc ->ContextID, Icc ->TagPtrs[i]);
}
else {
TypeHandler = Icc ->TagTypeHandlers[i];
if (TypeHandler != NULL) {
LocalTypeHandler = *TypeHandler;
LocalTypeHandler.ContextID = Icc ->ContextID; // As an additional parameter
LocalTypeHandler.ICCVersion = Icc ->Version;
LocalTypeHandler.FreePtr(&LocalTypeHandler, Icc -> TagPtrs[i]);
}
}
}
}
else {
// New one
i = Icc -> TagCount;
if (i >= MAX_TABLE_TAG) {
cmsSignalError(Icc ->ContextID, cmsERROR_RANGE, "Too many tags (%d)", MAX_TABLE_TAG);
return FALSE;
}
Icc -> TagCount++;
}
// This is not raw
Icc ->TagSaveAsRaw[i] = FALSE;
// This is not a link
Icc ->TagLinked[i] = (cmsTagSignature) 0;
// Get information about the TAG.
TagDescriptor = _cmsGetTagDescriptor(sig);
if (TagDescriptor == NULL){
cmsSignalError(Icc ->ContextID, cmsERROR_UNKNOWN_EXTENSION, "Unsupported tag '%x'", sig);
return FALSE;
}
// Now we need to know which type to use. It depends on the version.
Version = cmsGetProfileVersion(hProfile);
if (TagDescriptor ->DecideType != NULL) {
// Let the tag descriptor to decide the type base on depending on
// the data. This is useful for example on parametric curves, where
// curves specified by a table cannot be saved as parametric and needs
// to be casted to single v2-curves, even on v4 profiles.
Type = TagDescriptor ->DecideType(Version, data);
}
else {
Type = TagDescriptor ->SupportedTypes[0];
}
// Does the tag support this type?
if (!IsTypeSupported(TagDescriptor, Type)) {
_cmsTagSignature2String(TypeString, (cmsTagSignature) Type);
_cmsTagSignature2String(SigString, sig);
cmsSignalError(Icc ->ContextID, cmsERROR_UNKNOWN_EXTENSION, "Unsupported type '%s' for tag '%s'", TypeString, SigString);
return FALSE;
}
// Does we have a handler for this type?
TypeHandler = _cmsGetTagTypeHandler(Type);
if (TypeHandler == NULL) {
_cmsTagSignature2String(TypeString, (cmsTagSignature) Type);
_cmsTagSignature2String(SigString, sig);
cmsSignalError(Icc ->ContextID, cmsERROR_UNKNOWN_EXTENSION, "Unsupported type '%s' for tag '%s'", TypeString, SigString);
return FALSE; // Should never happen
}
// Fill fields on icc structure
Icc ->TagTypeHandlers[i] = TypeHandler;
Icc ->TagNames[i] = sig;
Icc ->TagSizes[i] = 0;
Icc ->TagOffsets[i] = 0;
LocalTypeHandler = *TypeHandler;
LocalTypeHandler.ContextID = Icc ->ContextID;
LocalTypeHandler.ICCVersion = Icc ->Version;
Icc ->TagPtrs[i] = LocalTypeHandler.DupPtr(&LocalTypeHandler, data, TagDescriptor ->ElemCount);
if (Icc ->TagPtrs[i] == NULL) {
_cmsTagSignature2String(TypeString, (cmsTagSignature) Type);
_cmsTagSignature2String(SigString, sig);
cmsSignalError(Icc ->ContextID, cmsERROR_CORRUPTION_DETECTED, "Malformed struct in type '%s' for tag '%s'", TypeString, SigString);
return FALSE;
}
return TRUE;
}
// Read and write raw data. The only way those function would work and keep consistence with normal read and write
// is to do an additional step of serialization. That means, readRaw would issue a normal read and then convert the obtained
// data to raw bytes by using the "write" serialization logic. And vice-versa. I know this may end in situations where
// raw data written does not exactly correspond with the raw data proposed to cmsWriteRaw data, but this approach allows
// to write a tag as raw data and the read it as handled.
cmsInt32Number CMSEXPORT cmsReadRawTag(cmsHPROFILE hProfile, cmsTagSignature sig, void* data, cmsUInt32Number BufferSize)
{
_cmsICCPROFILE* Icc = (_cmsICCPROFILE*) hProfile;
void *Object;
int i;
cmsIOHANDLER* MemIO;
cmsTagTypeHandler* TypeHandler = NULL;
cmsTagTypeHandler LocalTypeHandler;
cmsTagDescriptor* TagDescriptor = NULL;
cmsUInt32Number rc;
cmsUInt32Number Offset, TagSize;
// Search for given tag in ICC profile directory
i = _cmsSearchTag(Icc, sig, TRUE);
if (i < 0) return 0; // Not found, return 0
// It is already read?
if (Icc -> TagPtrs[i] == NULL) {
// No yet, get original position
Offset = Icc ->TagOffsets[i];
TagSize = Icc ->TagSizes[i];
// read the data directly, don't keep copy
if (data != NULL) {
if (BufferSize < TagSize)
TagSize = BufferSize;
if (!Icc ->IOhandler ->Seek(Icc ->IOhandler, Offset)) return 0;
if (!Icc ->IOhandler ->Read(Icc ->IOhandler, data, 1, TagSize)) return 0;
return TagSize;
}
return Icc ->TagSizes[i];
}
// The data has been already read, or written. But wait!, maybe the user choosed to save as
// raw data. In this case, return the raw data directly
if (Icc ->TagSaveAsRaw[i]) {
if (data != NULL) {
TagSize = Icc ->TagSizes[i];
if (BufferSize < TagSize)
TagSize = BufferSize;
memmove(data, Icc ->TagPtrs[i], TagSize);
return TagSize;
}
return Icc ->TagSizes[i];
}
// Already readed, or previously set by cmsWriteTag(). We need to serialize that
// data to raw in order to maintain consistency.
Object = cmsReadTag(hProfile, sig);
if (Object == NULL) return 0;
// Now we need to serialize to a memory block: just use a memory iohandler
if (data == NULL) {
MemIO = cmsOpenIOhandlerFromNULL(cmsGetProfileContextID(hProfile));
} else{
MemIO = cmsOpenIOhandlerFromMem(cmsGetProfileContextID(hProfile), data, BufferSize, "w");
}
if (MemIO == NULL) return 0;
// Obtain type handling for the tag
TypeHandler = Icc ->TagTypeHandlers[i];
TagDescriptor = _cmsGetTagDescriptor(sig);
if (TagDescriptor == NULL) {
cmsCloseIOhandler(MemIO);
return 0;
}
// FIXME: No handling for TypeHandler == NULL here?
// Serialize
LocalTypeHandler = *TypeHandler;
LocalTypeHandler.ContextID = Icc ->ContextID;
LocalTypeHandler.ICCVersion = Icc ->Version;
if (!_cmsWriteTypeBase(MemIO, TypeHandler ->Signature)) {
cmsCloseIOhandler(MemIO);
return 0;
}
if (!LocalTypeHandler.WritePtr(&LocalTypeHandler, MemIO, Object, TagDescriptor ->ElemCount)) {
cmsCloseIOhandler(MemIO);
return 0;
}
// Get Size and close
rc = MemIO ->Tell(MemIO);
cmsCloseIOhandler(MemIO); // Ignore return code this time
return rc;
}
// Similar to the anterior. This function allows to write directly to the ICC profile any data, without
// checking anything. As a rule, mixing Raw with cooked doesn't work, so writting a tag as raw and then reading
// it as cooked without serializing does result into an error. If that is wha you want, you will need to dump
// the profile to memry or disk and then reopen it.
cmsBool CMSEXPORT cmsWriteRawTag(cmsHPROFILE hProfile, cmsTagSignature sig, const void* data, cmsUInt32Number Size)
{
_cmsICCPROFILE* Icc = (_cmsICCPROFILE*) hProfile;
int i;
if (!_cmsNewTag(Icc, sig, &i)) return FALSE;
// Mark the tag as being written as RAW
Icc ->TagSaveAsRaw[i] = TRUE;
Icc ->TagNames[i] = sig;
Icc ->TagLinked[i] = (cmsTagSignature) 0;
// Keep a copy of the block
Icc ->TagPtrs[i] = _cmsDupMem(Icc ->ContextID, data, Size);
Icc ->TagSizes[i] = Size;
return TRUE;
}
// Using this function you can collapse several tag entries to the same block in the profile
cmsBool CMSEXPORT cmsLinkTag(cmsHPROFILE hProfile, cmsTagSignature sig, cmsTagSignature dest)
{
_cmsICCPROFILE* Icc = (_cmsICCPROFILE*) hProfile;
int i;
if (!_cmsNewTag(Icc, sig, &i)) return FALSE;
// Keep necessary information
Icc ->TagSaveAsRaw[i] = FALSE;
Icc ->TagNames[i] = sig;
Icc ->TagLinked[i] = dest;
Icc ->TagPtrs[i] = NULL;
Icc ->TagSizes[i] = 0;
Icc ->TagOffsets[i] = 0;
return TRUE;
}
// Returns the tag linked to sig, in the case two tags are sharing same resource
cmsTagSignature CMSEXPORT cmsTagLinkedTo(cmsHPROFILE hProfile, cmsTagSignature sig)
{
_cmsICCPROFILE* Icc = (_cmsICCPROFILE*) hProfile;
int i;
// Search for given tag in ICC profile directory
i = _cmsSearchTag(Icc, sig, FALSE);
if (i < 0) return (cmsTagSignature) 0; // Not found, return 0
return Icc -> TagLinked[i];
}
|
53 | ./little-cms/src/cmsnamed.c | //---------------------------------------------------------------------------------
//
// Little Color Management System
// Copyright (c) 1998-2012 Marti Maria Saguer
//
// Permission is hereby granted, free of charge, to any person obtaining
// a copy of this software and associated documentation files (the "Software"),
// to deal in the Software without restriction, including without limitation
// the rights to use, copy, modify, merge, publish, distribute, sublicense,
// and/or sell copies of the Software, and to permit persons to whom the Software
// is furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO
// THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
// LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
// OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
// WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
//
//---------------------------------------------------------------------------------
//
#include "lcms2_internal.h"
// Multilocalized unicode objects. That is an attempt to encapsulate i18n.
// Allocates an empty multi localizad unicode object
cmsMLU* CMSEXPORT cmsMLUalloc(cmsContext ContextID, cmsUInt32Number nItems)
{
cmsMLU* mlu;
// nItems should be positive if given
if (nItems <= 0) nItems = 2;
// Create the container
mlu = (cmsMLU*) _cmsMallocZero(ContextID, sizeof(cmsMLU));
if (mlu == NULL) return NULL;
mlu ->ContextID = ContextID;
// Create entry array
mlu ->Entries = (_cmsMLUentry*) _cmsCalloc(ContextID, nItems, sizeof(_cmsMLUentry));
if (mlu ->Entries == NULL) {
_cmsFree(ContextID, mlu);
return NULL;
}
// Ok, keep indexes up to date
mlu ->AllocatedEntries = nItems;
mlu ->UsedEntries = 0;
return mlu;
}
// Grows a mempool table for a MLU. Each time this function is called, mempool size is multiplied times two.
static
cmsBool GrowMLUpool(cmsMLU* mlu)
{
cmsUInt32Number size;
void *NewPtr;
// Sanity check
if (mlu == NULL) return FALSE;
if (mlu ->PoolSize == 0)
size = 256;
else
size = mlu ->PoolSize * 2;
// Check for overflow
if (size < mlu ->PoolSize) return FALSE;
// Reallocate the pool
NewPtr = _cmsRealloc(mlu ->ContextID, mlu ->MemPool, size);
if (NewPtr == NULL) return FALSE;
mlu ->MemPool = NewPtr;
mlu ->PoolSize = size;
return TRUE;
}
// Grows a entry table for a MLU. Each time this function is called, table size is multiplied times two.
static
cmsBool GrowMLUtable(cmsMLU* mlu)
{
int AllocatedEntries;
_cmsMLUentry *NewPtr;
// Sanity check
if (mlu == NULL) return FALSE;
AllocatedEntries = mlu ->AllocatedEntries * 2;
// Check for overflow
if (AllocatedEntries / 2 != mlu ->AllocatedEntries) return FALSE;
// Reallocate the memory
NewPtr = (_cmsMLUentry*)_cmsRealloc(mlu ->ContextID, mlu ->Entries, AllocatedEntries*sizeof(_cmsMLUentry));
if (NewPtr == NULL) return FALSE;
mlu ->Entries = NewPtr;
mlu ->AllocatedEntries = AllocatedEntries;
return TRUE;
}
// Search for a specific entry in the structure. Language and Country are used.
static
int SearchMLUEntry(cmsMLU* mlu, cmsUInt16Number LanguageCode, cmsUInt16Number CountryCode)
{
int i;
// Sanity check
if (mlu == NULL) return -1;
// Iterate whole table
for (i=0; i < mlu ->UsedEntries; i++) {
if (mlu ->Entries[i].Country == CountryCode &&
mlu ->Entries[i].Language == LanguageCode) return i;
}
// Not found
return -1;
}
// Add a block of characters to the intended MLU. Language and country are specified.
// Only one entry for Language/country pair is allowed.
static
cmsBool AddMLUBlock(cmsMLU* mlu, cmsUInt32Number size, const wchar_t *Block,
cmsUInt16Number LanguageCode, cmsUInt16Number CountryCode)
{
cmsUInt32Number Offset;
cmsUInt8Number* Ptr;
// Sanity check
if (mlu == NULL) return FALSE;
// Is there any room available?
if (mlu ->UsedEntries >= mlu ->AllocatedEntries) {
if (!GrowMLUtable(mlu)) return FALSE;
}
// Only one ASCII string
if (SearchMLUEntry(mlu, LanguageCode, CountryCode) >= 0) return FALSE; // Only one is allowed!
// Check for size
while ((mlu ->PoolSize - mlu ->PoolUsed) < size) {
if (!GrowMLUpool(mlu)) return FALSE;
}
Offset = mlu ->PoolUsed;
Ptr = (cmsUInt8Number*) mlu ->MemPool;
if (Ptr == NULL) return FALSE;
// Set the entry
memmove(Ptr + Offset, Block, size);
mlu ->PoolUsed += size;
mlu ->Entries[mlu ->UsedEntries].StrW = Offset;
mlu ->Entries[mlu ->UsedEntries].Len = size;
mlu ->Entries[mlu ->UsedEntries].Country = CountryCode;
mlu ->Entries[mlu ->UsedEntries].Language = LanguageCode;
mlu ->UsedEntries++;
return TRUE;
}
// Add an ASCII entry.
cmsBool CMSEXPORT cmsMLUsetASCII(cmsMLU* mlu, const char LanguageCode[3], const char CountryCode[3], const char* ASCIIString)
{
cmsUInt32Number i, len = (cmsUInt32Number) strlen(ASCIIString)+1;
wchar_t* WStr;
cmsBool rc;
cmsUInt16Number Lang = _cmsAdjustEndianess16(*(cmsUInt16Number*) LanguageCode);
cmsUInt16Number Cntry = _cmsAdjustEndianess16(*(cmsUInt16Number*) CountryCode);
if (mlu == NULL) return FALSE;
WStr = (wchar_t*) _cmsCalloc(mlu ->ContextID, len, sizeof(wchar_t));
if (WStr == NULL) return FALSE;
for (i=0; i < len; i++)
WStr[i] = (wchar_t) ASCIIString[i];
rc = AddMLUBlock(mlu, len * sizeof(wchar_t), WStr, Lang, Cntry);
_cmsFree(mlu ->ContextID, WStr);
return rc;
}
// We don't need any wcs support library
static
cmsUInt32Number mywcslen(const wchar_t *s)
{
const wchar_t *p;
p = s;
while (*p)
p++;
return (cmsUInt32Number)(p - s);
}
// Add a wide entry
cmsBool CMSEXPORT cmsMLUsetWide(cmsMLU* mlu, const char Language[3], const char Country[3], const wchar_t* WideString)
{
cmsUInt16Number Lang = _cmsAdjustEndianess16(*(cmsUInt16Number*) Language);
cmsUInt16Number Cntry = _cmsAdjustEndianess16(*(cmsUInt16Number*) Country);
cmsUInt32Number len;
if (mlu == NULL) return FALSE;
if (WideString == NULL) return FALSE;
len = (cmsUInt32Number) (mywcslen(WideString) + 1) * sizeof(wchar_t);
return AddMLUBlock(mlu, len, WideString, Lang, Cntry);
}
// Duplicating a MLU is as easy as copying all members
cmsMLU* CMSEXPORT cmsMLUdup(const cmsMLU* mlu)
{
cmsMLU* NewMlu = NULL;
// Duplicating a NULL obtains a NULL
if (mlu == NULL) return NULL;
NewMlu = cmsMLUalloc(mlu ->ContextID, mlu ->UsedEntries);
if (NewMlu == NULL) return NULL;
// Should never happen
if (NewMlu ->AllocatedEntries < mlu ->UsedEntries)
goto Error;
// Sanitize...
if (NewMlu ->Entries == NULL || mlu ->Entries == NULL) goto Error;
memmove(NewMlu ->Entries, mlu ->Entries, mlu ->UsedEntries * sizeof(_cmsMLUentry));
NewMlu ->UsedEntries = mlu ->UsedEntries;
// The MLU may be empty
if (mlu ->PoolUsed == 0) {
NewMlu ->MemPool = NULL;
}
else {
// It is not empty
NewMlu ->MemPool = _cmsMalloc(mlu ->ContextID, mlu ->PoolUsed);
if (NewMlu ->MemPool == NULL) goto Error;
}
NewMlu ->PoolSize = mlu ->PoolUsed;
if (NewMlu ->MemPool == NULL || mlu ->MemPool == NULL) goto Error;
memmove(NewMlu ->MemPool, mlu->MemPool, mlu ->PoolUsed);
NewMlu ->PoolUsed = mlu ->PoolUsed;
return NewMlu;
Error:
if (NewMlu != NULL) cmsMLUfree(NewMlu);
return NULL;
}
// Free any used memory
void CMSEXPORT cmsMLUfree(cmsMLU* mlu)
{
if (mlu) {
if (mlu -> Entries) _cmsFree(mlu ->ContextID, mlu->Entries);
if (mlu -> MemPool) _cmsFree(mlu ->ContextID, mlu->MemPool);
_cmsFree(mlu ->ContextID, mlu);
}
}
// The algorithm first searches for an exact match of country and language, if not found it uses
// the Language. If none is found, first entry is used instead.
static
const wchar_t* _cmsMLUgetWide(const cmsMLU* mlu,
cmsUInt32Number *len,
cmsUInt16Number LanguageCode, cmsUInt16Number CountryCode,
cmsUInt16Number* UsedLanguageCode, cmsUInt16Number* UsedCountryCode)
{
int i;
int Best = -1;
_cmsMLUentry* v;
if (mlu == NULL) return NULL;
if (mlu -> AllocatedEntries <= 0) return NULL;
for (i=0; i < mlu ->UsedEntries; i++) {
v = mlu ->Entries + i;
if (v -> Language == LanguageCode) {
if (Best == -1) Best = i;
if (v -> Country == CountryCode) {
if (UsedLanguageCode != NULL) *UsedLanguageCode = v ->Language;
if (UsedCountryCode != NULL) *UsedCountryCode = v ->Country;
if (len != NULL) *len = v ->Len;
return (wchar_t*) ((cmsUInt8Number*) mlu ->MemPool + v -> StrW); // Found exact match
}
}
}
// No string found. Return First one
if (Best == -1)
Best = 0;
v = mlu ->Entries + Best;
if (UsedLanguageCode != NULL) *UsedLanguageCode = v ->Language;
if (UsedCountryCode != NULL) *UsedCountryCode = v ->Country;
if (len != NULL) *len = v ->Len;
return(wchar_t*) ((cmsUInt8Number*) mlu ->MemPool + v ->StrW);
}
// Obtain an ASCII representation of the wide string. Setting buffer to NULL returns the len
cmsUInt32Number CMSEXPORT cmsMLUgetASCII(const cmsMLU* mlu,
const char LanguageCode[3], const char CountryCode[3],
char* Buffer, cmsUInt32Number BufferSize)
{
const wchar_t *Wide;
cmsUInt32Number StrLen = 0;
cmsUInt32Number ASCIIlen, i;
cmsUInt16Number Lang = _cmsAdjustEndianess16(*(cmsUInt16Number*) LanguageCode);
cmsUInt16Number Cntry = _cmsAdjustEndianess16(*(cmsUInt16Number*) CountryCode);
// Sanitize
if (mlu == NULL) return 0;
// Get WideChar
Wide = _cmsMLUgetWide(mlu, &StrLen, Lang, Cntry, NULL, NULL);
if (Wide == NULL) return 0;
ASCIIlen = StrLen / sizeof(wchar_t);
// Maybe we want only to know the len?
if (Buffer == NULL) return ASCIIlen + 1; // Note the zero at the end
// No buffer size means no data
if (BufferSize <= 0) return 0;
// Some clipping may be required
if (BufferSize < ASCIIlen + 1)
ASCIIlen = BufferSize - 1;
// Precess each character
for (i=0; i < ASCIIlen; i++) {
if (Wide[i] == 0)
Buffer[i] = 0;
else
Buffer[i] = (char) Wide[i];
}
// We put a termination "\0"
Buffer[ASCIIlen] = 0;
return ASCIIlen + 1;
}
// Obtain a wide representation of the MLU, on depending on current locale settings
cmsUInt32Number CMSEXPORT cmsMLUgetWide(const cmsMLU* mlu,
const char LanguageCode[3], const char CountryCode[3],
wchar_t* Buffer, cmsUInt32Number BufferSize)
{
const wchar_t *Wide;
cmsUInt32Number StrLen = 0;
cmsUInt16Number Lang = _cmsAdjustEndianess16(*(cmsUInt16Number*) LanguageCode);
cmsUInt16Number Cntry = _cmsAdjustEndianess16(*(cmsUInt16Number*) CountryCode);
// Sanitize
if (mlu == NULL) return 0;
Wide = _cmsMLUgetWide(mlu, &StrLen, Lang, Cntry, NULL, NULL);
if (Wide == NULL) return 0;
// Maybe we want only to know the len?
if (Buffer == NULL) return StrLen + sizeof(wchar_t);
// No buffer size means no data
if (BufferSize <= 0) return 0;
// Some clipping may be required
if (BufferSize < StrLen + sizeof(wchar_t))
StrLen = BufferSize - + sizeof(wchar_t);
memmove(Buffer, Wide, StrLen);
Buffer[StrLen / sizeof(wchar_t)] = 0;
return StrLen + sizeof(wchar_t);
}
// Get also the language and country
CMSAPI cmsBool CMSEXPORT cmsMLUgetTranslation(const cmsMLU* mlu,
const char LanguageCode[3], const char CountryCode[3],
char ObtainedLanguage[3], char ObtainedCountry[3])
{
const wchar_t *Wide;
cmsUInt16Number Lang = _cmsAdjustEndianess16(*(cmsUInt16Number*) LanguageCode);
cmsUInt16Number Cntry = _cmsAdjustEndianess16(*(cmsUInt16Number*) CountryCode);
cmsUInt16Number ObtLang, ObtCode;
// Sanitize
if (mlu == NULL) return FALSE;
Wide = _cmsMLUgetWide(mlu, NULL, Lang, Cntry, &ObtLang, &ObtCode);
if (Wide == NULL) return FALSE;
// Get used language and code
*(cmsUInt16Number *)ObtainedLanguage = _cmsAdjustEndianess16(ObtLang);
*(cmsUInt16Number *)ObtainedCountry = _cmsAdjustEndianess16(ObtCode);
ObtainedLanguage[2] = ObtainedCountry[2] = 0;
return TRUE;
}
// Get the number of translations in the MLU object
cmsUInt32Number CMSEXPORT cmsMLUtranslationsCount(const cmsMLU* mlu)
{
if (mlu == NULL) return 0;
return mlu->UsedEntries;
}
// Get the language and country codes for a specific MLU index
cmsBool CMSEXPORT cmsMLUtranslationsCodes(const cmsMLU* mlu,
cmsUInt32Number idx,
char LanguageCode[3],
char CountryCode[3])
{
_cmsMLUentry *entry;
if (mlu == NULL) return FALSE;
if (idx >= (cmsUInt32Number) mlu->UsedEntries) return FALSE;
entry = &mlu->Entries[idx];
*(cmsUInt16Number *)LanguageCode = _cmsAdjustEndianess16(entry->Language);
*(cmsUInt16Number *)CountryCode = _cmsAdjustEndianess16(entry->Country);
return TRUE;
}
// Named color lists --------------------------------------------------------------------------------------------
// Grow the list to keep at least NumElements
static
cmsBool GrowNamedColorList(cmsNAMEDCOLORLIST* v)
{
cmsUInt32Number size;
_cmsNAMEDCOLOR * NewPtr;
if (v == NULL) return FALSE;
if (v ->Allocated == 0)
size = 64; // Initial guess
else
size = v ->Allocated * 2;
// Keep a maximum color lists can grow, 100K entries seems reasonable
if (size > 1024*100) return FALSE;
NewPtr = (_cmsNAMEDCOLOR*) _cmsRealloc(v ->ContextID, v ->List, size * sizeof(_cmsNAMEDCOLOR));
if (NewPtr == NULL)
return FALSE;
v ->List = NewPtr;
v ->Allocated = size;
return TRUE;
}
// Allocate a list for n elements
cmsNAMEDCOLORLIST* CMSEXPORT cmsAllocNamedColorList(cmsContext ContextID, cmsUInt32Number n, cmsUInt32Number ColorantCount, const char* Prefix, const char* Suffix)
{
cmsNAMEDCOLORLIST* v = (cmsNAMEDCOLORLIST*) _cmsMallocZero(ContextID, sizeof(cmsNAMEDCOLORLIST));
if (v == NULL) return NULL;
v ->List = NULL;
v ->nColors = 0;
v ->ContextID = ContextID;
while (v -> Allocated < n)
GrowNamedColorList(v);
strncpy(v ->Prefix, Prefix, sizeof(v ->Prefix)-1);
strncpy(v ->Suffix, Suffix, sizeof(v ->Suffix)-1);
v->Prefix[32] = v->Suffix[32] = 0;
v -> ColorantCount = ColorantCount;
return v;
}
// Free a list
void CMSEXPORT cmsFreeNamedColorList(cmsNAMEDCOLORLIST* v)
{
if (v == NULL) return;
if (v ->List) _cmsFree(v ->ContextID, v ->List);
_cmsFree(v ->ContextID, v);
}
cmsNAMEDCOLORLIST* CMSEXPORT cmsDupNamedColorList(const cmsNAMEDCOLORLIST* v)
{
cmsNAMEDCOLORLIST* NewNC;
if (v == NULL) return NULL;
NewNC= cmsAllocNamedColorList(v ->ContextID, v -> nColors, v ->ColorantCount, v ->Prefix, v ->Suffix);
if (NewNC == NULL) return NULL;
// For really large tables we need this
while (NewNC ->Allocated < v ->Allocated)
GrowNamedColorList(NewNC);
memmove(NewNC ->Prefix, v ->Prefix, sizeof(v ->Prefix));
memmove(NewNC ->Suffix, v ->Suffix, sizeof(v ->Suffix));
NewNC ->ColorantCount = v ->ColorantCount;
memmove(NewNC->List, v ->List, v->nColors * sizeof(_cmsNAMEDCOLOR));
NewNC ->nColors = v ->nColors;
return NewNC;
}
// Append a color to a list. List pointer may change if reallocated
cmsBool CMSEXPORT cmsAppendNamedColor(cmsNAMEDCOLORLIST* NamedColorList,
const char* Name,
cmsUInt16Number PCS[3], cmsUInt16Number Colorant[cmsMAXCHANNELS])
{
cmsUInt32Number i;
if (NamedColorList == NULL) return FALSE;
if (NamedColorList ->nColors + 1 > NamedColorList ->Allocated) {
if (!GrowNamedColorList(NamedColorList)) return FALSE;
}
for (i=0; i < NamedColorList ->ColorantCount; i++)
NamedColorList ->List[NamedColorList ->nColors].DeviceColorant[i] = Colorant == NULL? 0 : Colorant[i];
for (i=0; i < 3; i++)
NamedColorList ->List[NamedColorList ->nColors].PCS[i] = PCS == NULL ? 0 : PCS[i];
if (Name != NULL) {
strncpy(NamedColorList ->List[NamedColorList ->nColors].Name, Name, cmsMAX_PATH-1);
NamedColorList ->List[NamedColorList ->nColors].Name[cmsMAX_PATH-1] = 0;
}
else
NamedColorList ->List[NamedColorList ->nColors].Name[0] = 0;
NamedColorList ->nColors++;
return TRUE;
}
// Returns number of elements
cmsUInt32Number CMSEXPORT cmsNamedColorCount(const cmsNAMEDCOLORLIST* NamedColorList)
{
if (NamedColorList == NULL) return 0;
return NamedColorList ->nColors;
}
// Info aboout a given color
cmsBool CMSEXPORT cmsNamedColorInfo(const cmsNAMEDCOLORLIST* NamedColorList, cmsUInt32Number nColor,
char* Name,
char* Prefix,
char* Suffix,
cmsUInt16Number* PCS,
cmsUInt16Number* Colorant)
{
if (NamedColorList == NULL) return FALSE;
if (nColor >= cmsNamedColorCount(NamedColorList)) return FALSE;
if (Name) strcpy(Name, NamedColorList->List[nColor].Name);
if (Prefix) strcpy(Prefix, NamedColorList->Prefix);
if (Suffix) strcpy(Suffix, NamedColorList->Suffix);
if (PCS)
memmove(PCS, NamedColorList ->List[nColor].PCS, 3*sizeof(cmsUInt16Number));
if (Colorant)
memmove(Colorant, NamedColorList ->List[nColor].DeviceColorant,
sizeof(cmsUInt16Number) * NamedColorList ->ColorantCount);
return TRUE;
}
// Search for a given color name (no prefix or suffix)
cmsInt32Number CMSEXPORT cmsNamedColorIndex(const cmsNAMEDCOLORLIST* NamedColorList, const char* Name)
{
int i, n;
if (NamedColorList == NULL) return -1;
n = cmsNamedColorCount(NamedColorList);
for (i=0; i < n; i++) {
if (cmsstrcasecmp(Name, NamedColorList->List[i].Name) == 0)
return i;
}
return -1;
}
// MPE support -----------------------------------------------------------------------------------------------------------------
static
void FreeNamedColorList(cmsStage* mpe)
{
cmsNAMEDCOLORLIST* List = (cmsNAMEDCOLORLIST*) mpe ->Data;
cmsFreeNamedColorList(List);
}
static
void* DupNamedColorList(cmsStage* mpe)
{
cmsNAMEDCOLORLIST* List = (cmsNAMEDCOLORLIST*) mpe ->Data;
return cmsDupNamedColorList(List);
}
static
void EvalNamedColorPCS(const cmsFloat32Number In[], cmsFloat32Number Out[], const cmsStage *mpe)
{
cmsNAMEDCOLORLIST* NamedColorList = (cmsNAMEDCOLORLIST*) mpe ->Data;
cmsUInt16Number index = (cmsUInt16Number) _cmsQuickSaturateWord(In[0] * 65535.0);
if (index >= NamedColorList-> nColors) {
cmsSignalError(NamedColorList ->ContextID, cmsERROR_RANGE, "Color %d out of range; ignored", index);
}
else {
// Named color always uses Lab
Out[0] = (cmsFloat32Number) (NamedColorList->List[index].PCS[0] / 65535.0);
Out[1] = (cmsFloat32Number) (NamedColorList->List[index].PCS[1] / 65535.0);
Out[2] = (cmsFloat32Number) (NamedColorList->List[index].PCS[2] / 65535.0);
}
}
static
void EvalNamedColor(const cmsFloat32Number In[], cmsFloat32Number Out[], const cmsStage *mpe)
{
cmsNAMEDCOLORLIST* NamedColorList = (cmsNAMEDCOLORLIST*) mpe ->Data;
cmsUInt16Number index = (cmsUInt16Number) _cmsQuickSaturateWord(In[0] * 65535.0);
cmsUInt32Number j;
if (index >= NamedColorList-> nColors) {
cmsSignalError(NamedColorList ->ContextID, cmsERROR_RANGE, "Color %d out of range; ignored", index);
}
else {
for (j=0; j < NamedColorList ->ColorantCount; j++)
Out[j] = (cmsFloat32Number) (NamedColorList->List[index].DeviceColorant[j] / 65535.0);
}
}
// Named color lookup element
cmsStage* _cmsStageAllocNamedColor(cmsNAMEDCOLORLIST* NamedColorList, cmsBool UsePCS)
{
return _cmsStageAllocPlaceholder(NamedColorList ->ContextID,
cmsSigNamedColorElemType,
1, UsePCS ? 3 : NamedColorList ->ColorantCount,
UsePCS ? EvalNamedColorPCS : EvalNamedColor,
DupNamedColorList,
FreeNamedColorList,
cmsDupNamedColorList(NamedColorList));
}
// Retrieve the named color list from a transform. Should be first element in the LUT
cmsNAMEDCOLORLIST* CMSEXPORT cmsGetNamedColorList(cmsHTRANSFORM xform)
{
_cmsTRANSFORM* v = (_cmsTRANSFORM*) xform;
cmsStage* mpe = v ->Lut->Elements;
if (mpe ->Type != cmsSigNamedColorElemType) return NULL;
return (cmsNAMEDCOLORLIST*) mpe ->Data;
}
// Profile sequence description routines -------------------------------------------------------------------------------------
cmsSEQ* CMSEXPORT cmsAllocProfileSequenceDescription(cmsContext ContextID, cmsUInt32Number n)
{
cmsSEQ* Seq;
cmsUInt32Number i;
if (n == 0) return NULL;
// In a absolutely arbitrary way, I hereby decide to allow a maxim of 255 profiles linked
// in a devicelink. It makes not sense anyway and may be used for exploits, so let's close the door!
if (n > 255) return NULL;
Seq = (cmsSEQ*) _cmsMallocZero(ContextID, sizeof(cmsSEQ));
if (Seq == NULL) return NULL;
Seq -> ContextID = ContextID;
Seq -> seq = (cmsPSEQDESC*) _cmsCalloc(ContextID, n, sizeof(cmsPSEQDESC));
Seq -> n = n;
if (Seq -> seq == NULL) {
_cmsFree(ContextID, Seq);
return NULL;
}
for (i=0; i < n; i++) {
Seq -> seq[i].Manufacturer = NULL;
Seq -> seq[i].Model = NULL;
Seq -> seq[i].Description = NULL;
}
return Seq;
}
void CMSEXPORT cmsFreeProfileSequenceDescription(cmsSEQ* pseq)
{
cmsUInt32Number i;
for (i=0; i < pseq ->n; i++) {
if (pseq ->seq[i].Manufacturer != NULL) cmsMLUfree(pseq ->seq[i].Manufacturer);
if (pseq ->seq[i].Model != NULL) cmsMLUfree(pseq ->seq[i].Model);
if (pseq ->seq[i].Description != NULL) cmsMLUfree(pseq ->seq[i].Description);
}
if (pseq ->seq != NULL) _cmsFree(pseq ->ContextID, pseq ->seq);
_cmsFree(pseq -> ContextID, pseq);
}
cmsSEQ* CMSEXPORT cmsDupProfileSequenceDescription(const cmsSEQ* pseq)
{
cmsSEQ *NewSeq;
cmsUInt32Number i;
if (pseq == NULL)
return NULL;
NewSeq = (cmsSEQ*) _cmsMalloc(pseq -> ContextID, sizeof(cmsSEQ));
if (NewSeq == NULL) return NULL;
NewSeq -> seq = (cmsPSEQDESC*) _cmsCalloc(pseq ->ContextID, pseq ->n, sizeof(cmsPSEQDESC));
if (NewSeq ->seq == NULL) goto Error;
NewSeq -> ContextID = pseq ->ContextID;
NewSeq -> n = pseq ->n;
for (i=0; i < pseq->n; i++) {
memmove(&NewSeq ->seq[i].attributes, &pseq ->seq[i].attributes, sizeof(cmsUInt64Number));
NewSeq ->seq[i].deviceMfg = pseq ->seq[i].deviceMfg;
NewSeq ->seq[i].deviceModel = pseq ->seq[i].deviceModel;
memmove(&NewSeq ->seq[i].ProfileID, &pseq ->seq[i].ProfileID, sizeof(cmsProfileID));
NewSeq ->seq[i].technology = pseq ->seq[i].technology;
NewSeq ->seq[i].Manufacturer = cmsMLUdup(pseq ->seq[i].Manufacturer);
NewSeq ->seq[i].Model = cmsMLUdup(pseq ->seq[i].Model);
NewSeq ->seq[i].Description = cmsMLUdup(pseq ->seq[i].Description);
}
return NewSeq;
Error:
cmsFreeProfileSequenceDescription(NewSeq);
return NULL;
}
// Dictionaries --------------------------------------------------------------------------------------------------------
// Dictionaries are just very simple linked lists
typedef struct _cmsDICT_struct {
cmsDICTentry* head;
cmsContext ContextID;
} _cmsDICT;
// Allocate an empty dictionary
cmsHANDLE CMSEXPORT cmsDictAlloc(cmsContext ContextID)
{
_cmsDICT* dict = (_cmsDICT*) _cmsMallocZero(ContextID, sizeof(_cmsDICT));
if (dict == NULL) return NULL;
dict ->ContextID = ContextID;
return (cmsHANDLE) dict;
}
// Dispose resources
void CMSEXPORT cmsDictFree(cmsHANDLE hDict)
{
_cmsDICT* dict = (_cmsDICT*) hDict;
cmsDICTentry *entry, *next;
_cmsAssert(dict != NULL);
// Walk the list freeing all nodes
entry = dict ->head;
while (entry != NULL) {
if (entry ->DisplayName != NULL) cmsMLUfree(entry ->DisplayName);
if (entry ->DisplayValue != NULL) cmsMLUfree(entry ->DisplayValue);
if (entry ->Name != NULL) _cmsFree(dict ->ContextID, entry -> Name);
if (entry ->Value != NULL) _cmsFree(dict ->ContextID, entry -> Value);
// Don't fall in the habitual trap...
next = entry ->Next;
_cmsFree(dict ->ContextID, entry);
entry = next;
}
_cmsFree(dict ->ContextID, dict);
}
// Duplicate a wide char string
static
wchar_t* DupWcs(cmsContext ContextID, const wchar_t* ptr)
{
if (ptr == NULL) return NULL;
return (wchar_t*) _cmsDupMem(ContextID, ptr, (mywcslen(ptr) + 1) * sizeof(wchar_t));
}
// Add a new entry to the linked list
cmsBool CMSEXPORT cmsDictAddEntry(cmsHANDLE hDict, const wchar_t* Name, const wchar_t* Value, const cmsMLU *DisplayName, const cmsMLU *DisplayValue)
{
_cmsDICT* dict = (_cmsDICT*) hDict;
cmsDICTentry *entry;
_cmsAssert(dict != NULL);
_cmsAssert(Name != NULL);
entry = (cmsDICTentry*) _cmsMallocZero(dict ->ContextID, sizeof(cmsDICTentry));
if (entry == NULL) return FALSE;
entry ->DisplayName = cmsMLUdup(DisplayName);
entry ->DisplayValue = cmsMLUdup(DisplayValue);
entry ->Name = DupWcs(dict ->ContextID, Name);
entry ->Value = DupWcs(dict ->ContextID, Value);
entry ->Next = dict ->head;
dict ->head = entry;
return TRUE;
}
// Duplicates an existing dictionary
cmsHANDLE CMSEXPORT cmsDictDup(cmsHANDLE hDict)
{
_cmsDICT* old_dict = (_cmsDICT*) hDict;
cmsHANDLE hNew;
cmsDICTentry *entry;
_cmsAssert(old_dict != NULL);
hNew = cmsDictAlloc(old_dict ->ContextID);
if (hNew == NULL) return NULL;
// Walk the list freeing all nodes
entry = old_dict ->head;
while (entry != NULL) {
if (!cmsDictAddEntry(hNew, entry ->Name, entry ->Value, entry ->DisplayName, entry ->DisplayValue)) {
cmsDictFree(hNew);
return NULL;
}
entry = entry -> Next;
}
return hNew;
}
// Get a pointer to the linked list
const cmsDICTentry* CMSEXPORT cmsDictGetEntryList(cmsHANDLE hDict)
{
_cmsDICT* dict = (_cmsDICT*) hDict;
if (dict == NULL) return NULL;
return dict ->head;
}
// Helper For external languages
const cmsDICTentry* CMSEXPORT cmsDictNextEntry(const cmsDICTentry* e)
{
if (e == NULL) return NULL;
return e ->Next;
}
|
54 | ./little-cms/src/cmscnvrt.c | //---------------------------------------------------------------------------------
//
// Little Color Management System
// Copyright (c) 1998-2012 Marti Maria Saguer
//
// Permission is hereby granted, free of charge, to any person obtaining
// a copy of this software and associated documentation files (the "Software"),
// to deal in the Software without restriction, including without limitation
// the rights to use, copy, modify, merge, publish, distribute, sublicense,
// and/or sell copies of the Software, and to permit persons to whom the Software
// is furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO
// THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
// LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
// OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
// WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
//
//---------------------------------------------------------------------------------
//
#include "lcms2_internal.h"
// Link several profiles to obtain a single LUT modelling the whole color transform. Intents, Black point
// compensation and Adaptation parameters may vary across profiles. BPC and Adaptation refers to the PCS
// after the profile. I.e, BPC[0] refers to connexion between profile(0) and profile(1)
cmsPipeline* _cmsLinkProfiles(cmsContext ContextID,
cmsUInt32Number nProfiles,
cmsUInt32Number Intents[],
cmsHPROFILE hProfiles[],
cmsBool BPC[],
cmsFloat64Number AdaptationStates[],
cmsUInt32Number dwFlags);
//---------------------------------------------------------------------------------
// This is the default routine for ICC-style intents. A user may decide to override it by using a plugin.
// Supported intents are perceptual, relative colorimetric, saturation and ICC-absolute colorimetric
static
cmsPipeline* DefaultICCintents(cmsContext ContextID,
cmsUInt32Number nProfiles,
cmsUInt32Number Intents[],
cmsHPROFILE hProfiles[],
cmsBool BPC[],
cmsFloat64Number AdaptationStates[],
cmsUInt32Number dwFlags);
//---------------------------------------------------------------------------------
// This is the entry for black-preserving K-only intents, which are non-ICC. Last profile have to be a output profile
// to do the trick (no devicelinks allowed at that position)
static
cmsPipeline* BlackPreservingKOnlyIntents(cmsContext ContextID,
cmsUInt32Number nProfiles,
cmsUInt32Number Intents[],
cmsHPROFILE hProfiles[],
cmsBool BPC[],
cmsFloat64Number AdaptationStates[],
cmsUInt32Number dwFlags);
//---------------------------------------------------------------------------------
// This is the entry for black-plane preserving, which are non-ICC. Again, Last profile have to be a output profile
// to do the trick (no devicelinks allowed at that position)
static
cmsPipeline* BlackPreservingKPlaneIntents(cmsContext ContextID,
cmsUInt32Number nProfiles,
cmsUInt32Number Intents[],
cmsHPROFILE hProfiles[],
cmsBool BPC[],
cmsFloat64Number AdaptationStates[],
cmsUInt32Number dwFlags);
//---------------------------------------------------------------------------------
// This is a structure holding implementations for all supported intents.
typedef struct _cms_intents_list {
cmsUInt32Number Intent;
char Description[256];
cmsIntentFn Link;
struct _cms_intents_list* Next;
} cmsIntentsList;
// Built-in intents
static cmsIntentsList DefaultIntents[] = {
{ INTENT_PERCEPTUAL, "Perceptual", DefaultICCintents, &DefaultIntents[1] },
{ INTENT_RELATIVE_COLORIMETRIC, "Relative colorimetric", DefaultICCintents, &DefaultIntents[2] },
{ INTENT_SATURATION, "Saturation", DefaultICCintents, &DefaultIntents[3] },
{ INTENT_ABSOLUTE_COLORIMETRIC, "Absolute colorimetric", DefaultICCintents, &DefaultIntents[4] },
{ INTENT_PRESERVE_K_ONLY_PERCEPTUAL, "Perceptual preserving black ink", BlackPreservingKOnlyIntents, &DefaultIntents[5] },
{ INTENT_PRESERVE_K_ONLY_RELATIVE_COLORIMETRIC, "Relative colorimetric preserving black ink", BlackPreservingKOnlyIntents, &DefaultIntents[6] },
{ INTENT_PRESERVE_K_ONLY_SATURATION, "Saturation preserving black ink", BlackPreservingKOnlyIntents, &DefaultIntents[7] },
{ INTENT_PRESERVE_K_PLANE_PERCEPTUAL, "Perceptual preserving black plane", BlackPreservingKPlaneIntents, &DefaultIntents[8] },
{ INTENT_PRESERVE_K_PLANE_RELATIVE_COLORIMETRIC,"Relative colorimetric preserving black plane", BlackPreservingKPlaneIntents, &DefaultIntents[9] },
{ INTENT_PRESERVE_K_PLANE_SATURATION, "Saturation preserving black plane", BlackPreservingKPlaneIntents, NULL }
};
// A pointer to the begining of the list
static cmsIntentsList *Intents = DefaultIntents;
// Search the list for a suitable intent. Returns NULL if not found
static
cmsIntentsList* SearchIntent(cmsUInt32Number Intent)
{
cmsIntentsList* pt;
for (pt = Intents; pt != NULL; pt = pt -> Next)
if (pt ->Intent == Intent) return pt;
return NULL;
}
// Black point compensation. Implemented as a linear scaling in XYZ. Black points
// should come relative to the white point. Fills an matrix/offset element m
// which is organized as a 4x4 matrix.
static
void ComputeBlackPointCompensation(const cmsCIEXYZ* BlackPointIn,
const cmsCIEXYZ* BlackPointOut,
cmsMAT3* m, cmsVEC3* off)
{
cmsFloat64Number ax, ay, az, bx, by, bz, tx, ty, tz;
// Now we need to compute a matrix plus an offset m and of such of
// [m]*bpin + off = bpout
// [m]*D50 + off = D50
//
// This is a linear scaling in the form ax+b, where
// a = (bpout - D50) / (bpin - D50)
// b = - D50* (bpout - bpin) / (bpin - D50)
tx = BlackPointIn->X - cmsD50_XYZ()->X;
ty = BlackPointIn->Y - cmsD50_XYZ()->Y;
tz = BlackPointIn->Z - cmsD50_XYZ()->Z;
ax = (BlackPointOut->X - cmsD50_XYZ()->X) / tx;
ay = (BlackPointOut->Y - cmsD50_XYZ()->Y) / ty;
az = (BlackPointOut->Z - cmsD50_XYZ()->Z) / tz;
bx = - cmsD50_XYZ()-> X * (BlackPointOut->X - BlackPointIn->X) / tx;
by = - cmsD50_XYZ()-> Y * (BlackPointOut->Y - BlackPointIn->Y) / ty;
bz = - cmsD50_XYZ()-> Z * (BlackPointOut->Z - BlackPointIn->Z) / tz;
_cmsVEC3init(&m ->v[0], ax, 0, 0);
_cmsVEC3init(&m ->v[1], 0, ay, 0);
_cmsVEC3init(&m ->v[2], 0, 0, az);
_cmsVEC3init(off, bx, by, bz);
}
// Approximate a blackbody illuminant based on CHAD information
static
cmsFloat64Number CHAD2Temp(const cmsMAT3* Chad)
{
// Convert D50 across inverse CHAD to get the absolute white point
cmsVEC3 d, s;
cmsCIEXYZ Dest;
cmsCIExyY DestChromaticity;
cmsFloat64Number TempK;
cmsMAT3 m1, m2;
m1 = *Chad;
if (!_cmsMAT3inverse(&m1, &m2)) return FALSE;
s.n[VX] = cmsD50_XYZ() -> X;
s.n[VY] = cmsD50_XYZ() -> Y;
s.n[VZ] = cmsD50_XYZ() -> Z;
_cmsMAT3eval(&d, &m2, &s);
Dest.X = d.n[VX];
Dest.Y = d.n[VY];
Dest.Z = d.n[VZ];
cmsXYZ2xyY(&DestChromaticity, &Dest);
if (!cmsTempFromWhitePoint(&TempK, &DestChromaticity))
return -1.0;
return TempK;
}
// Compute a CHAD based on a given temperature
static
void Temp2CHAD(cmsMAT3* Chad, cmsFloat64Number Temp)
{
cmsCIEXYZ White;
cmsCIExyY ChromaticityOfWhite;
cmsWhitePointFromTemp(&ChromaticityOfWhite, Temp);
cmsxyY2XYZ(&White, &ChromaticityOfWhite);
_cmsAdaptationMatrix(Chad, NULL, &White, cmsD50_XYZ());
}
// Join scalings to obtain relative input to absolute and then to relative output.
// Result is stored in a 3x3 matrix
static
cmsBool ComputeAbsoluteIntent(cmsFloat64Number AdaptationState,
const cmsCIEXYZ* WhitePointIn,
const cmsMAT3* ChromaticAdaptationMatrixIn,
const cmsCIEXYZ* WhitePointOut,
const cmsMAT3* ChromaticAdaptationMatrixOut,
cmsMAT3* m)
{
cmsMAT3 Scale, m1, m2, m3, m4;
// Adaptation state
if (AdaptationState == 1.0) {
// Observer is fully adapted. Keep chromatic adaptation.
// That is the standard V4 behaviour
_cmsVEC3init(&m->v[0], WhitePointIn->X / WhitePointOut->X, 0, 0);
_cmsVEC3init(&m->v[1], 0, WhitePointIn->Y / WhitePointOut->Y, 0);
_cmsVEC3init(&m->v[2], 0, 0, WhitePointIn->Z / WhitePointOut->Z);
}
else {
// Incomplete adaptation. This is an advanced feature.
_cmsVEC3init(&Scale.v[0], WhitePointIn->X / WhitePointOut->X, 0, 0);
_cmsVEC3init(&Scale.v[1], 0, WhitePointIn->Y / WhitePointOut->Y, 0);
_cmsVEC3init(&Scale.v[2], 0, 0, WhitePointIn->Z / WhitePointOut->Z);
if (AdaptationState == 0.0) {
m1 = *ChromaticAdaptationMatrixOut;
_cmsMAT3per(&m2, &m1, &Scale);
// m2 holds CHAD from output white to D50 times abs. col. scaling
// Observer is not adapted, undo the chromatic adaptation
_cmsMAT3per(m, &m2, ChromaticAdaptationMatrixOut);
m3 = *ChromaticAdaptationMatrixIn;
if (!_cmsMAT3inverse(&m3, &m4)) return FALSE;
_cmsMAT3per(m, &m2, &m4);
} else {
cmsMAT3 MixedCHAD;
cmsFloat64Number TempSrc, TempDest, Temp;
m1 = *ChromaticAdaptationMatrixIn;
if (!_cmsMAT3inverse(&m1, &m2)) return FALSE;
_cmsMAT3per(&m3, &m2, &Scale);
// m3 holds CHAD from input white to D50 times abs. col. scaling
TempSrc = CHAD2Temp(ChromaticAdaptationMatrixIn);
TempDest = CHAD2Temp(ChromaticAdaptationMatrixOut);
if (TempSrc < 0.0 || TempDest < 0.0) return FALSE; // Something went wrong
if (_cmsMAT3isIdentity(&Scale) && fabs(TempSrc - TempDest) < 0.01) {
_cmsMAT3identity(m);
return TRUE;
}
Temp = (1.0 - AdaptationState) * TempDest + AdaptationState * TempSrc;
// Get a CHAD from whatever output temperature to D50. This replaces output CHAD
Temp2CHAD(&MixedCHAD, Temp);
_cmsMAT3per(m, &m3, &MixedCHAD);
}
}
return TRUE;
}
// Just to see if m matrix should be applied
static
cmsBool IsEmptyLayer(cmsMAT3* m, cmsVEC3* off)
{
cmsFloat64Number diff = 0;
cmsMAT3 Ident;
int i;
if (m == NULL && off == NULL) return TRUE; // NULL is allowed as an empty layer
if (m == NULL && off != NULL) return FALSE; // This is an internal error
_cmsMAT3identity(&Ident);
for (i=0; i < 3*3; i++)
diff += fabs(((cmsFloat64Number*)m)[i] - ((cmsFloat64Number*)&Ident)[i]);
for (i=0; i < 3; i++)
diff += fabs(((cmsFloat64Number*)off)[i]);
return (diff < 0.002);
}
// Compute the conversion layer
static
cmsBool ComputeConversion(int i, cmsHPROFILE hProfiles[],
cmsUInt32Number Intent,
cmsBool BPC,
cmsFloat64Number AdaptationState,
cmsMAT3* m, cmsVEC3* off)
{
int k;
// m and off are set to identity and this is detected latter on
_cmsMAT3identity(m);
_cmsVEC3init(off, 0, 0, 0);
// If intent is abs. colorimetric,
if (Intent == INTENT_ABSOLUTE_COLORIMETRIC) {
cmsCIEXYZ WhitePointIn, WhitePointOut;
cmsMAT3 ChromaticAdaptationMatrixIn, ChromaticAdaptationMatrixOut;
_cmsReadMediaWhitePoint(&WhitePointIn, hProfiles[i-1]);
_cmsReadCHAD(&ChromaticAdaptationMatrixIn, hProfiles[i-1]);
_cmsReadMediaWhitePoint(&WhitePointOut, hProfiles[i]);
_cmsReadCHAD(&ChromaticAdaptationMatrixOut, hProfiles[i]);
if (!ComputeAbsoluteIntent(AdaptationState,
&WhitePointIn, &ChromaticAdaptationMatrixIn,
&WhitePointOut, &ChromaticAdaptationMatrixOut, m)) return FALSE;
}
else {
// Rest of intents may apply BPC.
if (BPC) {
cmsCIEXYZ BlackPointIn, BlackPointOut;
cmsDetectBlackPoint(&BlackPointIn, hProfiles[i-1], Intent, 0);
cmsDetectDestinationBlackPoint(&BlackPointOut, hProfiles[i], Intent, 0);
// If black points are equal, then do nothing
if (BlackPointIn.X != BlackPointOut.X ||
BlackPointIn.Y != BlackPointOut.Y ||
BlackPointIn.Z != BlackPointOut.Z)
ComputeBlackPointCompensation(&BlackPointIn, &BlackPointOut, m, off);
}
}
// Offset should be adjusted because the encoding. We encode XYZ normalized to 0..1.0,
// to do that, we divide by MAX_ENCODEABLE_XZY. The conversion stage goes XYZ -> XYZ so
// we have first to convert from encoded to XYZ and then convert back to encoded.
// y = Mx + Off
// x = x'c
// y = M x'c + Off
// y = y'c; y' = y / c
// y' = (Mx'c + Off) /c = Mx' + (Off / c)
for (k=0; k < 3; k++) {
off ->n[k] /= MAX_ENCODEABLE_XYZ;
}
return TRUE;
}
// Add a conversion stage if needed. If a matrix/offset m is given, it applies to XYZ space
static
cmsBool AddConversion(cmsPipeline* Result, cmsColorSpaceSignature InPCS, cmsColorSpaceSignature OutPCS, cmsMAT3* m, cmsVEC3* off)
{
cmsFloat64Number* m_as_dbl = (cmsFloat64Number*) m;
cmsFloat64Number* off_as_dbl = (cmsFloat64Number*) off;
// Handle PCS mismatches. A specialized stage is added to the LUT in such case
switch (InPCS) {
case cmsSigXYZData: // Input profile operates in XYZ
switch (OutPCS) {
case cmsSigXYZData: // XYZ -> XYZ
if (!IsEmptyLayer(m, off) &&
!cmsPipelineInsertStage(Result, cmsAT_END, cmsStageAllocMatrix(Result ->ContextID, 3, 3, m_as_dbl, off_as_dbl)))
return FALSE;
break;
case cmsSigLabData: // XYZ -> Lab
if (!IsEmptyLayer(m, off) &&
!cmsPipelineInsertStage(Result, cmsAT_END, cmsStageAllocMatrix(Result ->ContextID, 3, 3, m_as_dbl, off_as_dbl)))
return FALSE;
if (!cmsPipelineInsertStage(Result, cmsAT_END, _cmsStageAllocXYZ2Lab(Result ->ContextID)))
return FALSE;
break;
default:
return FALSE; // Colorspace mismatch
}
break;
case cmsSigLabData: // Input profile operates in Lab
switch (OutPCS) {
case cmsSigXYZData: // Lab -> XYZ
if (!cmsPipelineInsertStage(Result, cmsAT_END, _cmsStageAllocLab2XYZ(Result ->ContextID)))
return FALSE;
if (!IsEmptyLayer(m, off) &&
!cmsPipelineInsertStage(Result, cmsAT_END, cmsStageAllocMatrix(Result ->ContextID, 3, 3, m_as_dbl, off_as_dbl)))
return FALSE;
break;
case cmsSigLabData: // Lab -> Lab
if (!IsEmptyLayer(m, off)) {
if (!cmsPipelineInsertStage(Result, cmsAT_END, _cmsStageAllocLab2XYZ(Result ->ContextID)) ||
!cmsPipelineInsertStage(Result, cmsAT_END, cmsStageAllocMatrix(Result ->ContextID, 3, 3, m_as_dbl, off_as_dbl)) ||
!cmsPipelineInsertStage(Result, cmsAT_END, _cmsStageAllocXYZ2Lab(Result ->ContextID)))
return FALSE;
}
break;
default:
return FALSE; // Mismatch
}
break;
// On colorspaces other than PCS, check for same space
default:
if (InPCS != OutPCS) return FALSE;
break;
}
return TRUE;
}
// Is a given space compatible with another?
static
cmsBool ColorSpaceIsCompatible(cmsColorSpaceSignature a, cmsColorSpaceSignature b)
{
// If they are same, they are compatible.
if (a == b) return TRUE;
// Check for MCH4 substitution of CMYK
if ((a == cmsSig4colorData) && (b == cmsSigCmykData)) return TRUE;
if ((a == cmsSigCmykData) && (b == cmsSig4colorData)) return TRUE;
// Check for XYZ/Lab. Those spaces are interchangeable as they can be computed one from other.
if ((a == cmsSigXYZData) && (b == cmsSigLabData)) return TRUE;
if ((a == cmsSigLabData) && (b == cmsSigXYZData)) return TRUE;
return FALSE;
}
// Default handler for ICC-style intents
static
cmsPipeline* DefaultICCintents(cmsContext ContextID,
cmsUInt32Number nProfiles,
cmsUInt32Number TheIntents[],
cmsHPROFILE hProfiles[],
cmsBool BPC[],
cmsFloat64Number AdaptationStates[],
cmsUInt32Number dwFlags)
{
cmsPipeline* Lut = NULL;
cmsPipeline* Result;
cmsHPROFILE hProfile;
cmsMAT3 m;
cmsVEC3 off;
cmsColorSpaceSignature ColorSpaceIn, ColorSpaceOut, CurrentColorSpace;
cmsProfileClassSignature ClassSig;
cmsUInt32Number i, Intent;
// For safety
if (nProfiles == 0) return NULL;
// Allocate an empty LUT for holding the result. 0 as channel count means 'undefined'
Result = cmsPipelineAlloc(ContextID, 0, 0);
if (Result == NULL) return NULL;
CurrentColorSpace = cmsGetColorSpace(hProfiles[0]);
for (i=0; i < nProfiles; i++) {
cmsBool lIsDeviceLink, lIsInput;
hProfile = hProfiles[i];
ClassSig = cmsGetDeviceClass(hProfile);
lIsDeviceLink = (ClassSig == cmsSigLinkClass || ClassSig == cmsSigAbstractClass );
// First profile is used as input unless devicelink or abstract
if ((i == 0) && !lIsDeviceLink) {
lIsInput = TRUE;
}
else {
// Else use profile in the input direction if current space is not PCS
lIsInput = (CurrentColorSpace != cmsSigXYZData) &&
(CurrentColorSpace != cmsSigLabData);
}
Intent = TheIntents[i];
if (lIsInput || lIsDeviceLink) {
ColorSpaceIn = cmsGetColorSpace(hProfile);
ColorSpaceOut = cmsGetPCS(hProfile);
}
else {
ColorSpaceIn = cmsGetPCS(hProfile);
ColorSpaceOut = cmsGetColorSpace(hProfile);
}
if (!ColorSpaceIsCompatible(ColorSpaceIn, CurrentColorSpace)) {
cmsSignalError(ContextID, cmsERROR_COLORSPACE_CHECK, "ColorSpace mismatch");
goto Error;
}
// If devicelink is found, then no custom intent is allowed and we can
// read the LUT to be applied. Settings don't apply here.
if (lIsDeviceLink || ((ClassSig == cmsSigNamedColorClass) && (nProfiles == 1))) {
// Get the involved LUT from the profile
Lut = _cmsReadDevicelinkLUT(hProfile, Intent);
if (Lut == NULL) goto Error;
// What about abstract profiles?
if (ClassSig == cmsSigAbstractClass && i > 0) {
if (!ComputeConversion(i, hProfiles, Intent, BPC[i], AdaptationStates[i], &m, &off)) goto Error;
}
else {
_cmsMAT3identity(&m);
_cmsVEC3init(&off, 0, 0, 0);
}
if (!AddConversion(Result, CurrentColorSpace, ColorSpaceIn, &m, &off)) goto Error;
}
else {
if (lIsInput) {
// Input direction means non-pcs connection, so proceed like devicelinks
Lut = _cmsReadInputLUT(hProfile, Intent);
if (Lut == NULL) goto Error;
}
else {
// Output direction means PCS connection. Intent may apply here
Lut = _cmsReadOutputLUT(hProfile, Intent);
if (Lut == NULL) goto Error;
if (!ComputeConversion(i, hProfiles, Intent, BPC[i], AdaptationStates[i], &m, &off)) goto Error;
if (!AddConversion(Result, CurrentColorSpace, ColorSpaceIn, &m, &off)) goto Error;
}
}
// Concatenate to the output LUT
if (!cmsPipelineCat(Result, Lut))
goto Error;
cmsPipelineFree(Lut);
// Update current space
CurrentColorSpace = ColorSpaceOut;
}
return Result;
Error:
cmsPipelineFree(Lut);
if (Result != NULL) cmsPipelineFree(Result);
return NULL;
cmsUNUSED_PARAMETER(dwFlags);
}
// Wrapper for DLL calling convention
cmsPipeline* CMSEXPORT _cmsDefaultICCintents(cmsContext ContextID,
cmsUInt32Number nProfiles,
cmsUInt32Number TheIntents[],
cmsHPROFILE hProfiles[],
cmsBool BPC[],
cmsFloat64Number AdaptationStates[],
cmsUInt32Number dwFlags)
{
return DefaultICCintents(ContextID, nProfiles, TheIntents, hProfiles, BPC, AdaptationStates, dwFlags);
}
// Black preserving intents ---------------------------------------------------------------------------------------------
// Translate black-preserving intents to ICC ones
static
int TranslateNonICCIntents(int Intent)
{
switch (Intent) {
case INTENT_PRESERVE_K_ONLY_PERCEPTUAL:
case INTENT_PRESERVE_K_PLANE_PERCEPTUAL:
return INTENT_PERCEPTUAL;
case INTENT_PRESERVE_K_ONLY_RELATIVE_COLORIMETRIC:
case INTENT_PRESERVE_K_PLANE_RELATIVE_COLORIMETRIC:
return INTENT_RELATIVE_COLORIMETRIC;
case INTENT_PRESERVE_K_ONLY_SATURATION:
case INTENT_PRESERVE_K_PLANE_SATURATION:
return INTENT_SATURATION;
default: return Intent;
}
}
// Sampler for Black-only preserving CMYK->CMYK transforms
typedef struct {
cmsPipeline* cmyk2cmyk; // The original transform
cmsToneCurve* KTone; // Black-to-black tone curve
} GrayOnlyParams;
// Preserve black only if that is the only ink used
static
int BlackPreservingGrayOnlySampler(register const cmsUInt16Number In[], register cmsUInt16Number Out[], register void* Cargo)
{
GrayOnlyParams* bp = (GrayOnlyParams*) Cargo;
// If going across black only, keep black only
if (In[0] == 0 && In[1] == 0 && In[2] == 0) {
// TAC does not apply because it is black ink!
Out[0] = Out[1] = Out[2] = 0;
Out[3] = cmsEvalToneCurve16(bp->KTone, In[3]);
return TRUE;
}
// Keep normal transform for other colors
bp ->cmyk2cmyk ->Eval16Fn(In, Out, bp ->cmyk2cmyk->Data);
return TRUE;
}
// This is the entry for black-preserving K-only intents, which are non-ICC
static
cmsPipeline* BlackPreservingKOnlyIntents(cmsContext ContextID,
cmsUInt32Number nProfiles,
cmsUInt32Number TheIntents[],
cmsHPROFILE hProfiles[],
cmsBool BPC[],
cmsFloat64Number AdaptationStates[],
cmsUInt32Number dwFlags)
{
GrayOnlyParams bp;
cmsPipeline* Result;
cmsUInt32Number ICCIntents[256];
cmsStage* CLUT;
cmsUInt32Number i, nGridPoints;
// Sanity check
if (nProfiles < 1 || nProfiles > 255) return NULL;
// Translate black-preserving intents to ICC ones
for (i=0; i < nProfiles; i++)
ICCIntents[i] = TranslateNonICCIntents(TheIntents[i]);
// Check for non-cmyk profiles
if (cmsGetColorSpace(hProfiles[0]) != cmsSigCmykData ||
cmsGetColorSpace(hProfiles[nProfiles-1]) != cmsSigCmykData)
return DefaultICCintents(ContextID, nProfiles, ICCIntents, hProfiles, BPC, AdaptationStates, dwFlags);
memset(&bp, 0, sizeof(bp));
// Allocate an empty LUT for holding the result
Result = cmsPipelineAlloc(ContextID, 4, 4);
if (Result == NULL) return NULL;
// Create a LUT holding normal ICC transform
bp.cmyk2cmyk = DefaultICCintents(ContextID,
nProfiles,
ICCIntents,
hProfiles,
BPC,
AdaptationStates,
dwFlags);
if (bp.cmyk2cmyk == NULL) goto Error;
// Now, compute the tone curve
bp.KTone = _cmsBuildKToneCurve(ContextID,
4096,
nProfiles,
ICCIntents,
hProfiles,
BPC,
AdaptationStates,
dwFlags);
if (bp.KTone == NULL) goto Error;
// How many gridpoints are we going to use?
nGridPoints = _cmsReasonableGridpointsByColorspace(cmsSigCmykData, dwFlags);
// Create the CLUT. 16 bits
CLUT = cmsStageAllocCLut16bit(ContextID, nGridPoints, 4, 4, NULL);
if (CLUT == NULL) goto Error;
// This is the one and only MPE in this LUT
if (!cmsPipelineInsertStage(Result, cmsAT_BEGIN, CLUT))
goto Error;
// Sample it. We cannot afford pre/post linearization this time.
if (!cmsStageSampleCLut16bit(CLUT, BlackPreservingGrayOnlySampler, (void*) &bp, 0))
goto Error;
// Get rid of xform and tone curve
cmsPipelineFree(bp.cmyk2cmyk);
cmsFreeToneCurve(bp.KTone);
return Result;
Error:
if (bp.cmyk2cmyk != NULL) cmsPipelineFree(bp.cmyk2cmyk);
if (bp.KTone != NULL) cmsFreeToneCurve(bp.KTone);
if (Result != NULL) cmsPipelineFree(Result);
return NULL;
}
// K Plane-preserving CMYK to CMYK ------------------------------------------------------------------------------------
typedef struct {
cmsPipeline* cmyk2cmyk; // The original transform
cmsHTRANSFORM hProofOutput; // Output CMYK to Lab (last profile)
cmsHTRANSFORM cmyk2Lab; // The input chain
cmsToneCurve* KTone; // Black-to-black tone curve
cmsPipeline* LabK2cmyk; // The output profile
cmsFloat64Number MaxError;
cmsHTRANSFORM hRoundTrip;
cmsFloat64Number MaxTAC;
} PreserveKPlaneParams;
// The CLUT will be stored at 16 bits, but calculations are performed at cmsFloat32Number precision
static
int BlackPreservingSampler(register const cmsUInt16Number In[], register cmsUInt16Number Out[], register void* Cargo)
{
int i;
cmsFloat32Number Inf[4], Outf[4];
cmsFloat32Number LabK[4];
cmsFloat64Number SumCMY, SumCMYK, Error, Ratio;
cmsCIELab ColorimetricLab, BlackPreservingLab;
PreserveKPlaneParams* bp = (PreserveKPlaneParams*) Cargo;
// Convert from 16 bits to floating point
for (i=0; i < 4; i++)
Inf[i] = (cmsFloat32Number) (In[i] / 65535.0);
// Get the K across Tone curve
LabK[3] = cmsEvalToneCurveFloat(bp ->KTone, Inf[3]);
// If going across black only, keep black only
if (In[0] == 0 && In[1] == 0 && In[2] == 0) {
Out[0] = Out[1] = Out[2] = 0;
Out[3] = _cmsQuickSaturateWord(LabK[3] * 65535.0);
return TRUE;
}
// Try the original transform,
cmsPipelineEvalFloat( Inf, Outf, bp ->cmyk2cmyk);
// Store a copy of the floating point result into 16-bit
for (i=0; i < 4; i++)
Out[i] = _cmsQuickSaturateWord(Outf[i] * 65535.0);
// Maybe K is already ok (mostly on K=0)
if ( fabs(Outf[3] - LabK[3]) < (3.0 / 65535.0) ) {
return TRUE;
}
// K differ, mesure and keep Lab measurement for further usage
// this is done in relative colorimetric intent
cmsDoTransform(bp->hProofOutput, Out, &ColorimetricLab, 1);
// Is not black only and the transform doesn't keep black.
// Obtain the Lab of output CMYK. After that we have Lab + K
cmsDoTransform(bp ->cmyk2Lab, Outf, LabK, 1);
// Obtain the corresponding CMY using reverse interpolation
// (K is fixed in LabK[3])
if (!cmsPipelineEvalReverseFloat(LabK, Outf, Outf, bp ->LabK2cmyk)) {
// Cannot find a suitable value, so use colorimetric xform
// which is already stored in Out[]
return TRUE;
}
// Make sure to pass thru K (which now is fixed)
Outf[3] = LabK[3];
// Apply TAC if needed
SumCMY = Outf[0] + Outf[1] + Outf[2];
SumCMYK = SumCMY + Outf[3];
if (SumCMYK > bp ->MaxTAC) {
Ratio = 1 - ((SumCMYK - bp->MaxTAC) / SumCMY);
if (Ratio < 0)
Ratio = 0;
}
else
Ratio = 1.0;
Out[0] = _cmsQuickSaturateWord(Outf[0] * Ratio * 65535.0); // C
Out[1] = _cmsQuickSaturateWord(Outf[1] * Ratio * 65535.0); // M
Out[2] = _cmsQuickSaturateWord(Outf[2] * Ratio * 65535.0); // Y
Out[3] = _cmsQuickSaturateWord(Outf[3] * 65535.0);
// Estimate the error (this goes 16 bits to Lab DBL)
cmsDoTransform(bp->hProofOutput, Out, &BlackPreservingLab, 1);
Error = cmsDeltaE(&ColorimetricLab, &BlackPreservingLab);
if (Error > bp -> MaxError)
bp->MaxError = Error;
return TRUE;
}
// This is the entry for black-plane preserving, which are non-ICC
static
cmsPipeline* BlackPreservingKPlaneIntents(cmsContext ContextID,
cmsUInt32Number nProfiles,
cmsUInt32Number TheIntents[],
cmsHPROFILE hProfiles[],
cmsBool BPC[],
cmsFloat64Number AdaptationStates[],
cmsUInt32Number dwFlags)
{
PreserveKPlaneParams bp;
cmsPipeline* Result = NULL;
cmsUInt32Number ICCIntents[256];
cmsStage* CLUT;
cmsUInt32Number i, nGridPoints;
cmsHPROFILE hLab;
// Sanity check
if (nProfiles < 1 || nProfiles > 255) return NULL;
// Translate black-preserving intents to ICC ones
for (i=0; i < nProfiles; i++)
ICCIntents[i] = TranslateNonICCIntents(TheIntents[i]);
// Check for non-cmyk profiles
if (cmsGetColorSpace(hProfiles[0]) != cmsSigCmykData ||
!(cmsGetColorSpace(hProfiles[nProfiles-1]) == cmsSigCmykData ||
cmsGetDeviceClass(hProfiles[nProfiles-1]) == cmsSigOutputClass))
return DefaultICCintents(ContextID, nProfiles, ICCIntents, hProfiles, BPC, AdaptationStates, dwFlags);
// Allocate an empty LUT for holding the result
Result = cmsPipelineAlloc(ContextID, 4, 4);
if (Result == NULL) return NULL;
memset(&bp, 0, sizeof(bp));
// We need the input LUT of the last profile, assuming this one is responsible of
// black generation. This LUT will be seached in inverse order.
bp.LabK2cmyk = _cmsReadInputLUT(hProfiles[nProfiles-1], INTENT_RELATIVE_COLORIMETRIC);
if (bp.LabK2cmyk == NULL) goto Cleanup;
// Get total area coverage (in 0..1 domain)
bp.MaxTAC = cmsDetectTAC(hProfiles[nProfiles-1]) / 100.0;
if (bp.MaxTAC <= 0) goto Cleanup;
// Create a LUT holding normal ICC transform
bp.cmyk2cmyk = DefaultICCintents(ContextID,
nProfiles,
ICCIntents,
hProfiles,
BPC,
AdaptationStates,
dwFlags);
if (bp.cmyk2cmyk == NULL) goto Cleanup;
// Now the tone curve
bp.KTone = _cmsBuildKToneCurve(ContextID, 4096, nProfiles,
ICCIntents,
hProfiles,
BPC,
AdaptationStates,
dwFlags);
if (bp.KTone == NULL) goto Cleanup;
// To measure the output, Last profile to Lab
hLab = cmsCreateLab4ProfileTHR(ContextID, NULL);
bp.hProofOutput = cmsCreateTransformTHR(ContextID, hProfiles[nProfiles-1],
CHANNELS_SH(4)|BYTES_SH(2), hLab, TYPE_Lab_DBL,
INTENT_RELATIVE_COLORIMETRIC,
cmsFLAGS_NOCACHE|cmsFLAGS_NOOPTIMIZE);
if ( bp.hProofOutput == NULL) goto Cleanup;
// Same as anterior, but lab in the 0..1 range
bp.cmyk2Lab = cmsCreateTransformTHR(ContextID, hProfiles[nProfiles-1],
FLOAT_SH(1)|CHANNELS_SH(4)|BYTES_SH(4), hLab,
FLOAT_SH(1)|CHANNELS_SH(3)|BYTES_SH(4),
INTENT_RELATIVE_COLORIMETRIC,
cmsFLAGS_NOCACHE|cmsFLAGS_NOOPTIMIZE);
if (bp.cmyk2Lab == NULL) goto Cleanup;
cmsCloseProfile(hLab);
// Error estimation (for debug only)
bp.MaxError = 0;
// How many gridpoints are we going to use?
nGridPoints = _cmsReasonableGridpointsByColorspace(cmsSigCmykData, dwFlags);
CLUT = cmsStageAllocCLut16bit(ContextID, nGridPoints, 4, 4, NULL);
if (CLUT == NULL) goto Cleanup;
if (!cmsPipelineInsertStage(Result, cmsAT_BEGIN, CLUT))
goto Cleanup;
cmsStageSampleCLut16bit(CLUT, BlackPreservingSampler, (void*) &bp, 0);
Cleanup:
if (bp.cmyk2cmyk) cmsPipelineFree(bp.cmyk2cmyk);
if (bp.cmyk2Lab) cmsDeleteTransform(bp.cmyk2Lab);
if (bp.hProofOutput) cmsDeleteTransform(bp.hProofOutput);
if (bp.KTone) cmsFreeToneCurve(bp.KTone);
if (bp.LabK2cmyk) cmsPipelineFree(bp.LabK2cmyk);
return Result;
}
// Link routines ------------------------------------------------------------------------------------------------------
// Chain several profiles into a single LUT. It just checks the parameters and then calls the handler
// for the first intent in chain. The handler may be user-defined. Is up to the handler to deal with the
// rest of intents in chain. A maximum of 255 profiles at time are supported, which is pretty reasonable.
cmsPipeline* _cmsLinkProfiles(cmsContext ContextID,
cmsUInt32Number nProfiles,
cmsUInt32Number TheIntents[],
cmsHPROFILE hProfiles[],
cmsBool BPC[],
cmsFloat64Number AdaptationStates[],
cmsUInt32Number dwFlags)
{
cmsUInt32Number i;
cmsIntentsList* Intent;
// Make sure a reasonable number of profiles is provided
if (nProfiles <= 0 || nProfiles > 255) {
cmsSignalError(ContextID, cmsERROR_RANGE, "Couldn't link '%d' profiles", nProfiles);
return NULL;
}
for (i=0; i < nProfiles; i++) {
// Check if black point is really needed or allowed. Note that
// following Adobe's document:
// BPC does not apply to devicelink profiles, nor to abs colorimetric,
// and applies always on V4 perceptual and saturation.
if (TheIntents[i] == INTENT_ABSOLUTE_COLORIMETRIC)
BPC[i] = FALSE;
if (TheIntents[i] == INTENT_PERCEPTUAL || TheIntents[i] == INTENT_SATURATION) {
// Force BPC for V4 profiles in perceptual and saturation
if (cmsGetProfileVersion(hProfiles[i]) >= 4.0)
BPC[i] = TRUE;
}
}
// Search for a handler. The first intent in the chain defines the handler. That would
// prevent using multiple custom intents in a multiintent chain, but the behaviour of
// this case would present some issues if the custom intent tries to do things like
// preserve primaries. This solution is not perfect, but works well on most cases.
Intent = SearchIntent(TheIntents[0]);
if (Intent == NULL) {
cmsSignalError(ContextID, cmsERROR_UNKNOWN_EXTENSION, "Unsupported intent '%d'", TheIntents[0]);
return NULL;
}
// Call the handler
return Intent ->Link(ContextID, nProfiles, TheIntents, hProfiles, BPC, AdaptationStates, dwFlags);
}
// -------------------------------------------------------------------------------------------------
// Get information about available intents. nMax is the maximum space for the supplied "Codes"
// and "Descriptions" the function returns the total number of intents, which may be greater
// than nMax, although the matrices are not populated beyond this level.
cmsUInt32Number CMSEXPORT cmsGetSupportedIntents(cmsUInt32Number nMax, cmsUInt32Number* Codes, char** Descriptions)
{
cmsIntentsList* pt;
cmsUInt32Number nIntents;
for (nIntents=0, pt = Intents; pt != NULL; pt = pt -> Next)
{
if (nIntents < nMax) {
if (Codes != NULL)
Codes[nIntents] = pt ->Intent;
if (Descriptions != NULL)
Descriptions[nIntents] = pt ->Description;
}
nIntents++;
}
return nIntents;
}
// The plug-in registration. User can add new intents or override default routines
cmsBool _cmsRegisterRenderingIntentPlugin(cmsContext id, cmsPluginBase* Data)
{
cmsPluginRenderingIntent* Plugin = (cmsPluginRenderingIntent*) Data;
cmsIntentsList* fl;
// Do we have to reset the intents?
if (Data == NULL) {
Intents = DefaultIntents;
return TRUE;
}
fl = SearchIntent(Plugin ->Intent);
if (fl == NULL) {
fl = (cmsIntentsList*) _cmsPluginMalloc(id, sizeof(cmsIntentsList));
if (fl == NULL) return FALSE;
}
fl ->Intent = Plugin ->Intent;
strncpy(fl ->Description, Plugin ->Description, 255);
fl ->Description[255] = 0;
fl ->Link = Plugin ->Link;
fl ->Next = Intents;
Intents = fl;
return TRUE;
}
|
55 | ./little-cms/src/cmspack.c | //---------------------------------------------------------------------------------
//
// Little Color Management System
// Copyright (c) 1998-2010 Marti Maria Saguer
//
// Permission is hereby granted, free of charge, to any person obtaining
// a copy of this software and associated documentation files (the "Software"),
// to deal in the Software without restriction, including without limitation
// the rights to use, copy, modify, merge, publish, distribute, sublicense,
// and/or sell copies of the Software, and to permit persons to whom the Software
// is furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO
// THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
// LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
// OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
// WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
//
//---------------------------------------------------------------------------------
//
#include "lcms2_internal.h"
// This module handles all formats supported by lcms. There are two flavors, 16 bits and
// floating point. Floating point is supported only in a subset, those formats holding
// cmsFloat32Number (4 bytes per component) and double (marked as 0 bytes per component
// as special case)
// ---------------------------------------------------------------------------
// This macro return words stored as big endian
#define CHANGE_ENDIAN(w) (cmsUInt16Number) ((cmsUInt16Number) ((w)<<8)|((w)>>8))
// These macros handles reversing (negative)
#define REVERSE_FLAVOR_8(x) ((cmsUInt8Number) (0xff-(x)))
#define REVERSE_FLAVOR_16(x) ((cmsUInt16Number)(0xffff-(x)))
// * 0xffff / 0xff00 = (255 * 257) / (255 * 256) = 257 / 256
cmsINLINE cmsUInt16Number FomLabV2ToLabV4(cmsUInt16Number x)
{
int a = (x << 8 | x) >> 8; // * 257 / 256
if ( a > 0xffff) return 0xffff;
return (cmsUInt16Number) a;
}
// * 0xf00 / 0xffff = * 256 / 257
cmsINLINE cmsUInt16Number FomLabV4ToLabV2(cmsUInt16Number x)
{
return (cmsUInt16Number) (((x << 8) + 0x80) / 257);
}
typedef struct {
cmsUInt32Number Type;
cmsUInt32Number Mask;
cmsFormatter16 Frm;
} cmsFormatters16;
typedef struct {
cmsUInt32Number Type;
cmsUInt32Number Mask;
cmsFormatterFloat Frm;
} cmsFormattersFloat;
#define ANYSPACE COLORSPACE_SH(31)
#define ANYCHANNELS CHANNELS_SH(15)
#define ANYEXTRA EXTRA_SH(7)
#define ANYPLANAR PLANAR_SH(1)
#define ANYENDIAN ENDIAN16_SH(1)
#define ANYSWAP DOSWAP_SH(1)
#define ANYSWAPFIRST SWAPFIRST_SH(1)
#define ANYFLAVOR FLAVOR_SH(1)
// Supress waning about info never being used
#ifdef _MSC_VER
#pragma warning(disable : 4100)
#endif
// Unpacking routines (16 bits) ----------------------------------------------------------------------------------------
// Does almost everything but is slow
static
cmsUInt8Number* UnrollChunkyBytes(register _cmsTRANSFORM* info,
register cmsUInt16Number wIn[],
register cmsUInt8Number* accum,
register cmsUInt32Number Stride)
{
int nChan = T_CHANNELS(info -> InputFormat);
int DoSwap = T_DOSWAP(info ->InputFormat);
int Reverse = T_FLAVOR(info ->InputFormat);
int SwapFirst = T_SWAPFIRST(info -> InputFormat);
int Extra = T_EXTRA(info -> InputFormat);
int ExtraFirst = DoSwap ^ SwapFirst;
cmsUInt16Number v;
int i;
if (ExtraFirst) {
accum += Extra;
}
for (i=0; i < nChan; i++) {
int index = DoSwap ? (nChan - i - 1) : i;
v = FROM_8_TO_16(*accum);
v = Reverse ? REVERSE_FLAVOR_16(v) : v;
wIn[index] = v;
accum++;
}
if (!ExtraFirst) {
accum += Extra;
}
if (Extra == 0 && SwapFirst) {
cmsUInt16Number tmp = wIn[0];
memmove(&wIn[0], &wIn[1], (nChan-1) * sizeof(cmsUInt16Number));
wIn[nChan-1] = tmp;
}
return accum;
cmsUNUSED_PARAMETER(info);
cmsUNUSED_PARAMETER(Stride);
}
// Extra channels are just ignored because come in the next planes
static
cmsUInt8Number* UnrollPlanarBytes(register _cmsTRANSFORM* info,
register cmsUInt16Number wIn[],
register cmsUInt8Number* accum,
register cmsUInt32Number Stride)
{
int nChan = T_CHANNELS(info -> InputFormat);
int DoSwap = T_DOSWAP(info ->InputFormat);
int SwapFirst = T_SWAPFIRST(info ->InputFormat);
int Reverse = T_FLAVOR(info ->InputFormat);
int i;
cmsUInt8Number* Init = accum;
if (DoSwap ^ SwapFirst) {
accum += T_EXTRA(info -> InputFormat) * Stride;
}
for (i=0; i < nChan; i++) {
int index = DoSwap ? (nChan - i - 1) : i;
cmsUInt16Number v = FROM_8_TO_16(*accum);
wIn[index] = Reverse ? REVERSE_FLAVOR_16(v) : v;
accum += Stride;
}
return (Init + 1);
}
// Special cases, provided for performance
static
cmsUInt8Number* Unroll4Bytes(register _cmsTRANSFORM* info,
register cmsUInt16Number wIn[],
register cmsUInt8Number* accum,
register cmsUInt32Number Stride)
{
wIn[0] = FROM_8_TO_16(*accum); accum++; // C
wIn[1] = FROM_8_TO_16(*accum); accum++; // M
wIn[2] = FROM_8_TO_16(*accum); accum++; // Y
wIn[3] = FROM_8_TO_16(*accum); accum++; // K
return accum;
cmsUNUSED_PARAMETER(info);
cmsUNUSED_PARAMETER(Stride);
}
static
cmsUInt8Number* Unroll4BytesReverse(register _cmsTRANSFORM* info,
register cmsUInt16Number wIn[],
register cmsUInt8Number* accum,
register cmsUInt32Number Stride)
{
wIn[0] = FROM_8_TO_16(REVERSE_FLAVOR_8(*accum)); accum++; // C
wIn[1] = FROM_8_TO_16(REVERSE_FLAVOR_8(*accum)); accum++; // M
wIn[2] = FROM_8_TO_16(REVERSE_FLAVOR_8(*accum)); accum++; // Y
wIn[3] = FROM_8_TO_16(REVERSE_FLAVOR_8(*accum)); accum++; // K
return accum;
cmsUNUSED_PARAMETER(info);
cmsUNUSED_PARAMETER(Stride);
}
static
cmsUInt8Number* Unroll4BytesSwapFirst(register _cmsTRANSFORM* info,
register cmsUInt16Number wIn[],
register cmsUInt8Number* accum,
register cmsUInt32Number Stride)
{
wIn[3] = FROM_8_TO_16(*accum); accum++; // K
wIn[0] = FROM_8_TO_16(*accum); accum++; // C
wIn[1] = FROM_8_TO_16(*accum); accum++; // M
wIn[2] = FROM_8_TO_16(*accum); accum++; // Y
return accum;
cmsUNUSED_PARAMETER(info);
cmsUNUSED_PARAMETER(Stride);
}
// KYMC
static
cmsUInt8Number* Unroll4BytesSwap(register _cmsTRANSFORM* info,
register cmsUInt16Number wIn[],
register cmsUInt8Number* accum,
register cmsUInt32Number Stride)
{
wIn[3] = FROM_8_TO_16(*accum); accum++; // K
wIn[2] = FROM_8_TO_16(*accum); accum++; // Y
wIn[1] = FROM_8_TO_16(*accum); accum++; // M
wIn[0] = FROM_8_TO_16(*accum); accum++; // C
return accum;
cmsUNUSED_PARAMETER(info);
cmsUNUSED_PARAMETER(Stride);
}
static
cmsUInt8Number* Unroll4BytesSwapSwapFirst(register _cmsTRANSFORM* info,
register cmsUInt16Number wIn[],
register cmsUInt8Number* accum,
register cmsUInt32Number Stride)
{
wIn[2] = FROM_8_TO_16(*accum); accum++; // K
wIn[1] = FROM_8_TO_16(*accum); accum++; // Y
wIn[0] = FROM_8_TO_16(*accum); accum++; // M
wIn[3] = FROM_8_TO_16(*accum); accum++; // C
return accum;
cmsUNUSED_PARAMETER(info);
cmsUNUSED_PARAMETER(Stride);
}
static
cmsUInt8Number* Unroll3Bytes(register _cmsTRANSFORM* info,
register cmsUInt16Number wIn[],
register cmsUInt8Number* accum,
register cmsUInt32Number Stride)
{
wIn[0] = FROM_8_TO_16(*accum); accum++; // R
wIn[1] = FROM_8_TO_16(*accum); accum++; // G
wIn[2] = FROM_8_TO_16(*accum); accum++; // B
return accum;
cmsUNUSED_PARAMETER(info);
cmsUNUSED_PARAMETER(Stride);
}
static
cmsUInt8Number* Unroll3BytesSkip1Swap(register _cmsTRANSFORM* info,
register cmsUInt16Number wIn[],
register cmsUInt8Number* accum,
register cmsUInt32Number Stride)
{
accum++; // A
wIn[2] = FROM_8_TO_16(*accum); accum++; // B
wIn[1] = FROM_8_TO_16(*accum); accum++; // G
wIn[0] = FROM_8_TO_16(*accum); accum++; // R
return accum;
cmsUNUSED_PARAMETER(info);
cmsUNUSED_PARAMETER(Stride);
}
static
cmsUInt8Number* Unroll3BytesSkip1SwapSwapFirst(register _cmsTRANSFORM* info,
register cmsUInt16Number wIn[],
register cmsUInt8Number* accum,
register cmsUInt32Number Stride)
{
wIn[2] = FROM_8_TO_16(*accum); accum++; // B
wIn[1] = FROM_8_TO_16(*accum); accum++; // G
wIn[0] = FROM_8_TO_16(*accum); accum++; // R
accum++; // A
return accum;
cmsUNUSED_PARAMETER(info);
cmsUNUSED_PARAMETER(Stride);
}
static
cmsUInt8Number* Unroll3BytesSkip1SwapFirst(register _cmsTRANSFORM* info,
register cmsUInt16Number wIn[],
register cmsUInt8Number* accum,
register cmsUInt32Number Stride)
{
accum++; // A
wIn[0] = FROM_8_TO_16(*accum); accum++; // R
wIn[1] = FROM_8_TO_16(*accum); accum++; // G
wIn[2] = FROM_8_TO_16(*accum); accum++; // B
return accum;
cmsUNUSED_PARAMETER(info);
cmsUNUSED_PARAMETER(Stride);
}
// BRG
static
cmsUInt8Number* Unroll3BytesSwap(register _cmsTRANSFORM* info,
register cmsUInt16Number wIn[],
register cmsUInt8Number* accum,
register cmsUInt32Number Stride)
{
wIn[2] = FROM_8_TO_16(*accum); accum++; // B
wIn[1] = FROM_8_TO_16(*accum); accum++; // G
wIn[0] = FROM_8_TO_16(*accum); accum++; // R
return accum;
cmsUNUSED_PARAMETER(info);
cmsUNUSED_PARAMETER(Stride);
}
static
cmsUInt8Number* UnrollLabV2_8(register _cmsTRANSFORM* info,
register cmsUInt16Number wIn[],
register cmsUInt8Number* accum,
register cmsUInt32Number Stride)
{
wIn[0] = FomLabV2ToLabV4(FROM_8_TO_16(*accum)); accum++; // L
wIn[1] = FomLabV2ToLabV4(FROM_8_TO_16(*accum)); accum++; // a
wIn[2] = FomLabV2ToLabV4(FROM_8_TO_16(*accum)); accum++; // b
return accum;
cmsUNUSED_PARAMETER(info);
cmsUNUSED_PARAMETER(Stride);
}
static
cmsUInt8Number* UnrollALabV2_8(register _cmsTRANSFORM* info,
register cmsUInt16Number wIn[],
register cmsUInt8Number* accum,
register cmsUInt32Number Stride)
{
accum++; // A
wIn[0] = FomLabV2ToLabV4(FROM_8_TO_16(*accum)); accum++; // L
wIn[1] = FomLabV2ToLabV4(FROM_8_TO_16(*accum)); accum++; // a
wIn[2] = FomLabV2ToLabV4(FROM_8_TO_16(*accum)); accum++; // b
return accum;
cmsUNUSED_PARAMETER(info);
cmsUNUSED_PARAMETER(Stride);
}
static
cmsUInt8Number* UnrollLabV2_16(register _cmsTRANSFORM* info,
register cmsUInt16Number wIn[],
register cmsUInt8Number* accum,
register cmsUInt32Number Stride)
{
wIn[0] = FomLabV2ToLabV4(*(cmsUInt16Number*) accum); accum += 2; // L
wIn[1] = FomLabV2ToLabV4(*(cmsUInt16Number*) accum); accum += 2; // a
wIn[2] = FomLabV2ToLabV4(*(cmsUInt16Number*) accum); accum += 2; // b
return accum;
cmsUNUSED_PARAMETER(info);
cmsUNUSED_PARAMETER(Stride);
}
// for duplex
static
cmsUInt8Number* Unroll2Bytes(register _cmsTRANSFORM* info,
register cmsUInt16Number wIn[],
register cmsUInt8Number* accum,
register cmsUInt32Number Stride)
{
wIn[0] = FROM_8_TO_16(*accum); accum++; // ch1
wIn[1] = FROM_8_TO_16(*accum); accum++; // ch2
return accum;
cmsUNUSED_PARAMETER(info);
cmsUNUSED_PARAMETER(Stride);
}
// Monochrome duplicates L into RGB for null-transforms
static
cmsUInt8Number* Unroll1Byte(register _cmsTRANSFORM* info,
register cmsUInt16Number wIn[],
register cmsUInt8Number* accum,
register cmsUInt32Number Stride)
{
wIn[0] = wIn[1] = wIn[2] = FROM_8_TO_16(*accum); accum++; // L
return accum;
cmsUNUSED_PARAMETER(info);
cmsUNUSED_PARAMETER(Stride);
}
static
cmsUInt8Number* Unroll1ByteSkip1(register _cmsTRANSFORM* info,
register cmsUInt16Number wIn[],
register cmsUInt8Number* accum,
register cmsUInt32Number Stride)
{
wIn[0] = wIn[1] = wIn[2] = FROM_8_TO_16(*accum); accum++; // L
accum += 1;
return accum;
cmsUNUSED_PARAMETER(info);
cmsUNUSED_PARAMETER(Stride);
}
static
cmsUInt8Number* Unroll1ByteSkip2(register _cmsTRANSFORM* info,
register cmsUInt16Number wIn[],
register cmsUInt8Number* accum,
register cmsUInt32Number Stride)
{
wIn[0] = wIn[1] = wIn[2] = FROM_8_TO_16(*accum); accum++; // L
accum += 2;
return accum;
cmsUNUSED_PARAMETER(info);
cmsUNUSED_PARAMETER(Stride);
}
static
cmsUInt8Number* Unroll1ByteReversed(register _cmsTRANSFORM* info,
register cmsUInt16Number wIn[],
register cmsUInt8Number* accum,
register cmsUInt32Number Stride)
{
wIn[0] = wIn[1] = wIn[2] = REVERSE_FLAVOR_16(FROM_8_TO_16(*accum)); accum++; // L
return accum;
cmsUNUSED_PARAMETER(info);
cmsUNUSED_PARAMETER(Stride);
}
static
cmsUInt8Number* UnrollAnyWords(register _cmsTRANSFORM* info,
register cmsUInt16Number wIn[],
register cmsUInt8Number* accum,
register cmsUInt32Number Stride)
{
int nChan = T_CHANNELS(info -> InputFormat);
int SwapEndian = T_ENDIAN16(info -> InputFormat);
int DoSwap = T_DOSWAP(info ->InputFormat);
int Reverse = T_FLAVOR(info ->InputFormat);
int SwapFirst = T_SWAPFIRST(info -> InputFormat);
int Extra = T_EXTRA(info -> InputFormat);
int ExtraFirst = DoSwap ^ SwapFirst;
int i;
if (ExtraFirst) {
accum += Extra * sizeof(cmsUInt16Number);
}
for (i=0; i < nChan; i++) {
int index = DoSwap ? (nChan - i - 1) : i;
cmsUInt16Number v = *(cmsUInt16Number*) accum;
if (SwapEndian)
v = CHANGE_ENDIAN(v);
wIn[index] = Reverse ? REVERSE_FLAVOR_16(v) : v;
accum += sizeof(cmsUInt16Number);
}
if (!ExtraFirst) {
accum += Extra * sizeof(cmsUInt16Number);
}
if (Extra == 0 && SwapFirst) {
cmsUInt16Number tmp = wIn[0];
memmove(&wIn[0], &wIn[1], (nChan-1) * sizeof(cmsUInt16Number));
wIn[nChan-1] = tmp;
}
return accum;
cmsUNUSED_PARAMETER(Stride);
}
static
cmsUInt8Number* UnrollPlanarWords(register _cmsTRANSFORM* info,
register cmsUInt16Number wIn[],
register cmsUInt8Number* accum,
register cmsUInt32Number Stride)
{
int nChan = T_CHANNELS(info -> InputFormat);
int DoSwap= T_DOSWAP(info ->InputFormat);
int Reverse= T_FLAVOR(info ->InputFormat);
int SwapEndian = T_ENDIAN16(info -> InputFormat);
int i;
cmsUInt8Number* Init = accum;
if (DoSwap) {
accum += T_EXTRA(info -> InputFormat) * Stride * sizeof(cmsUInt16Number);
}
for (i=0; i < nChan; i++) {
int index = DoSwap ? (nChan - i - 1) : i;
cmsUInt16Number v = *(cmsUInt16Number*) accum;
if (SwapEndian)
v = CHANGE_ENDIAN(v);
wIn[index] = Reverse ? REVERSE_FLAVOR_16(v) : v;
accum += Stride * sizeof(cmsUInt16Number);
}
return (Init + sizeof(cmsUInt16Number));
}
static
cmsUInt8Number* Unroll4Words(register _cmsTRANSFORM* info,
register cmsUInt16Number wIn[],
register cmsUInt8Number* accum,
register cmsUInt32Number Stride)
{
wIn[0] = *(cmsUInt16Number*) accum; accum+= 2; // C
wIn[1] = *(cmsUInt16Number*) accum; accum+= 2; // M
wIn[2] = *(cmsUInt16Number*) accum; accum+= 2; // Y
wIn[3] = *(cmsUInt16Number*) accum; accum+= 2; // K
return accum;
cmsUNUSED_PARAMETER(info);
cmsUNUSED_PARAMETER(Stride);
}
static
cmsUInt8Number* Unroll4WordsReverse(register _cmsTRANSFORM* info,
register cmsUInt16Number wIn[],
register cmsUInt8Number* accum,
register cmsUInt32Number Stride)
{
wIn[0] = REVERSE_FLAVOR_16(*(cmsUInt16Number*) accum); accum+= 2; // C
wIn[1] = REVERSE_FLAVOR_16(*(cmsUInt16Number*) accum); accum+= 2; // M
wIn[2] = REVERSE_FLAVOR_16(*(cmsUInt16Number*) accum); accum+= 2; // Y
wIn[3] = REVERSE_FLAVOR_16(*(cmsUInt16Number*) accum); accum+= 2; // K
return accum;
cmsUNUSED_PARAMETER(info);
cmsUNUSED_PARAMETER(Stride);
}
static
cmsUInt8Number* Unroll4WordsSwapFirst(register _cmsTRANSFORM* info,
register cmsUInt16Number wIn[],
register cmsUInt8Number* accum,
register cmsUInt32Number Stride)
{
wIn[3] = *(cmsUInt16Number*) accum; accum+= 2; // K
wIn[0] = *(cmsUInt16Number*) accum; accum+= 2; // C
wIn[1] = *(cmsUInt16Number*) accum; accum+= 2; // M
wIn[2] = *(cmsUInt16Number*) accum; accum+= 2; // Y
return accum;
cmsUNUSED_PARAMETER(info);
cmsUNUSED_PARAMETER(Stride);
}
// KYMC
static
cmsUInt8Number* Unroll4WordsSwap(register _cmsTRANSFORM* info,
register cmsUInt16Number wIn[],
register cmsUInt8Number* accum,
register cmsUInt32Number Stride)
{
wIn[3] = *(cmsUInt16Number*) accum; accum+= 2; // K
wIn[2] = *(cmsUInt16Number*) accum; accum+= 2; // Y
wIn[1] = *(cmsUInt16Number*) accum; accum+= 2; // M
wIn[0] = *(cmsUInt16Number*) accum; accum+= 2; // C
return accum;
cmsUNUSED_PARAMETER(info);
cmsUNUSED_PARAMETER(Stride);
}
static
cmsUInt8Number* Unroll4WordsSwapSwapFirst(register _cmsTRANSFORM* info,
register cmsUInt16Number wIn[],
register cmsUInt8Number* accum,
register cmsUInt32Number Stride)
{
wIn[2] = *(cmsUInt16Number*) accum; accum+= 2; // K
wIn[1] = *(cmsUInt16Number*) accum; accum+= 2; // Y
wIn[0] = *(cmsUInt16Number*) accum; accum+= 2; // M
wIn[3] = *(cmsUInt16Number*) accum; accum+= 2; // C
return accum;
cmsUNUSED_PARAMETER(info);
cmsUNUSED_PARAMETER(Stride);
}
static
cmsUInt8Number* Unroll3Words(register _cmsTRANSFORM* info,
register cmsUInt16Number wIn[],
register cmsUInt8Number* accum,
register cmsUInt32Number Stride)
{
wIn[0] = *(cmsUInt16Number*) accum; accum+= 2; // C R
wIn[1] = *(cmsUInt16Number*) accum; accum+= 2; // M G
wIn[2] = *(cmsUInt16Number*) accum; accum+= 2; // Y B
return accum;
cmsUNUSED_PARAMETER(info);
cmsUNUSED_PARAMETER(Stride);
}
static
cmsUInt8Number* Unroll3WordsSwap(register _cmsTRANSFORM* info,
register cmsUInt16Number wIn[],
register cmsUInt8Number* accum,
register cmsUInt32Number Stride)
{
wIn[2] = *(cmsUInt16Number*) accum; accum+= 2; // C R
wIn[1] = *(cmsUInt16Number*) accum; accum+= 2; // M G
wIn[0] = *(cmsUInt16Number*) accum; accum+= 2; // Y B
return accum;
cmsUNUSED_PARAMETER(info);
cmsUNUSED_PARAMETER(Stride);
}
static
cmsUInt8Number* Unroll3WordsSkip1Swap(register _cmsTRANSFORM* info,
register cmsUInt16Number wIn[],
register cmsUInt8Number* accum,
register cmsUInt32Number Stride)
{
accum += 2; // A
wIn[2] = *(cmsUInt16Number*) accum; accum += 2; // R
wIn[1] = *(cmsUInt16Number*) accum; accum += 2; // G
wIn[0] = *(cmsUInt16Number*) accum; accum += 2; // B
return accum;
cmsUNUSED_PARAMETER(info);
cmsUNUSED_PARAMETER(Stride);
}
static
cmsUInt8Number* Unroll3WordsSkip1SwapFirst(register _cmsTRANSFORM* info,
register cmsUInt16Number wIn[],
register cmsUInt8Number* accum,
register cmsUInt32Number Stride)
{
accum += 2; // A
wIn[0] = *(cmsUInt16Number*) accum; accum += 2; // R
wIn[1] = *(cmsUInt16Number*) accum; accum += 2; // G
wIn[2] = *(cmsUInt16Number*) accum; accum += 2; // B
return accum;
cmsUNUSED_PARAMETER(info);
cmsUNUSED_PARAMETER(Stride);
}
static
cmsUInt8Number* Unroll1Word(register _cmsTRANSFORM* info,
register cmsUInt16Number wIn[],
register cmsUInt8Number* accum,
register cmsUInt32Number Stride)
{
wIn[0] = wIn[1] = wIn[2] = *(cmsUInt16Number*) accum; accum+= 2; // L
return accum;
cmsUNUSED_PARAMETER(info);
cmsUNUSED_PARAMETER(Stride);
}
static
cmsUInt8Number* Unroll1WordReversed(register _cmsTRANSFORM* info,
register cmsUInt16Number wIn[],
register cmsUInt8Number* accum,
register cmsUInt32Number Stride)
{
wIn[0] = wIn[1] = wIn[2] = REVERSE_FLAVOR_16(*(cmsUInt16Number*) accum); accum+= 2;
return accum;
cmsUNUSED_PARAMETER(info);
cmsUNUSED_PARAMETER(Stride);
}
static
cmsUInt8Number* Unroll1WordSkip3(register _cmsTRANSFORM* info,
register cmsUInt16Number wIn[],
register cmsUInt8Number* accum,
register cmsUInt32Number Stride)
{
wIn[0] = wIn[1] = wIn[2] = *(cmsUInt16Number*) accum;
accum += 8;
return accum;
cmsUNUSED_PARAMETER(info);
cmsUNUSED_PARAMETER(Stride);
}
static
cmsUInt8Number* Unroll2Words(register _cmsTRANSFORM* info,
register cmsUInt16Number wIn[],
register cmsUInt8Number* accum,
register cmsUInt32Number Stride)
{
wIn[0] = *(cmsUInt16Number*) accum; accum += 2; // ch1
wIn[1] = *(cmsUInt16Number*) accum; accum += 2; // ch2
return accum;
cmsUNUSED_PARAMETER(info);
cmsUNUSED_PARAMETER(Stride);
}
// This is a conversion of Lab double to 16 bits
static
cmsUInt8Number* UnrollLabDoubleTo16(register _cmsTRANSFORM* info,
register cmsUInt16Number wIn[],
register cmsUInt8Number* accum,
register cmsUInt32Number Stride)
{
if (T_PLANAR(info -> InputFormat)) {
cmsFloat64Number* Pt = (cmsFloat64Number*) accum;
cmsCIELab Lab;
Lab.L = Pt[0];
Lab.a = Pt[Stride];
Lab.b = Pt[Stride*2];
cmsFloat2LabEncoded(wIn, &Lab);
return accum + sizeof(cmsFloat64Number);
}
else {
cmsFloat2LabEncoded(wIn, (cmsCIELab*) accum);
accum += sizeof(cmsCIELab) + T_EXTRA(info ->InputFormat) * sizeof(cmsFloat64Number);
return accum;
}
}
// This is a conversion of Lab float to 16 bits
static
cmsUInt8Number* UnrollLabFloatTo16(register _cmsTRANSFORM* info,
register cmsUInt16Number wIn[],
register cmsUInt8Number* accum,
register cmsUInt32Number Stride)
{
cmsCIELab Lab;
if (T_PLANAR(info -> InputFormat)) {
cmsFloat32Number* Pt = (cmsFloat32Number*) accum;
Lab.L = Pt[0];
Lab.a = Pt[Stride];
Lab.b = Pt[Stride*2];
cmsFloat2LabEncoded(wIn, &Lab);
return accum + sizeof(cmsFloat32Number);
}
else {
Lab.L = ((cmsFloat32Number*) accum)[0];
Lab.a = ((cmsFloat32Number*) accum)[1];
Lab.b = ((cmsFloat32Number*) accum)[2];
cmsFloat2LabEncoded(wIn, &Lab);
accum += (3 + T_EXTRA(info ->InputFormat)) * sizeof(cmsFloat32Number);
return accum;
}
}
// This is a conversion of XYZ double to 16 bits
static
cmsUInt8Number* UnrollXYZDoubleTo16(register _cmsTRANSFORM* info,
register cmsUInt16Number wIn[],
register cmsUInt8Number* accum,
register cmsUInt32Number Stride)
{
if (T_PLANAR(info -> InputFormat)) {
cmsFloat64Number* Pt = (cmsFloat64Number*) accum;
cmsCIEXYZ XYZ;
XYZ.X = Pt[0];
XYZ.Y = Pt[Stride];
XYZ.Z = Pt[Stride*2];
cmsFloat2XYZEncoded(wIn, &XYZ);
return accum + sizeof(cmsFloat64Number);
}
else {
cmsFloat2XYZEncoded(wIn, (cmsCIEXYZ*) accum);
accum += sizeof(cmsCIEXYZ) + T_EXTRA(info ->InputFormat) * sizeof(cmsFloat64Number);
return accum;
}
}
// Check if space is marked as ink
cmsINLINE cmsBool IsInkSpace(cmsUInt32Number Type)
{
switch (T_COLORSPACE(Type)) {
case PT_CMY:
case PT_CMYK:
case PT_MCH5:
case PT_MCH6:
case PT_MCH7:
case PT_MCH8:
case PT_MCH9:
case PT_MCH10:
case PT_MCH11:
case PT_MCH12:
case PT_MCH13:
case PT_MCH14:
case PT_MCH15: return TRUE;
default: return FALSE;
}
}
// Inks does come in percentage, remaining cases are between 0..1.0, again to 16 bits
static
cmsUInt8Number* UnrollDoubleTo16(register _cmsTRANSFORM* info,
register cmsUInt16Number wIn[],
register cmsUInt8Number* accum,
register cmsUInt32Number Stride)
{
int nChan = T_CHANNELS(info -> InputFormat);
int DoSwap = T_DOSWAP(info ->InputFormat);
int Reverse = T_FLAVOR(info ->InputFormat);
int SwapFirst = T_SWAPFIRST(info -> InputFormat);
int Extra = T_EXTRA(info -> InputFormat);
int ExtraFirst = DoSwap ^ SwapFirst;
int Planar = T_PLANAR(info -> InputFormat);
cmsFloat64Number v;
cmsUInt16Number vi;
int i, start = 0;
cmsFloat64Number maximum = IsInkSpace(info ->InputFormat) ? 655.35 : 65535.0;
if (ExtraFirst)
start = Extra;
for (i=0; i < nChan; i++) {
int index = DoSwap ? (nChan - i - 1) : i;
if (Planar)
v = (cmsFloat32Number) ((cmsFloat64Number*) accum)[(i + start) * Stride];
else
v = (cmsFloat32Number) ((cmsFloat64Number*) accum)[i + start];
vi = _cmsQuickSaturateWord(v * maximum);
if (Reverse)
vi = REVERSE_FLAVOR_16(vi);
wIn[index] = vi;
}
if (Extra == 0 && SwapFirst) {
cmsUInt16Number tmp = wIn[0];
memmove(&wIn[0], &wIn[1], (nChan-1) * sizeof(cmsUInt16Number));
wIn[nChan-1] = tmp;
}
if (T_PLANAR(info -> InputFormat))
return accum + sizeof(cmsFloat64Number);
else
return accum + (nChan + Extra) * sizeof(cmsFloat64Number);
}
static
cmsUInt8Number* UnrollFloatTo16(register _cmsTRANSFORM* info,
register cmsUInt16Number wIn[],
register cmsUInt8Number* accum,
register cmsUInt32Number Stride)
{
int nChan = T_CHANNELS(info -> InputFormat);
int DoSwap = T_DOSWAP(info ->InputFormat);
int Reverse = T_FLAVOR(info ->InputFormat);
int SwapFirst = T_SWAPFIRST(info -> InputFormat);
int Extra = T_EXTRA(info -> InputFormat);
int ExtraFirst = DoSwap ^ SwapFirst;
int Planar = T_PLANAR(info -> InputFormat);
cmsFloat32Number v;
cmsUInt16Number vi;
int i, start = 0;
cmsFloat64Number maximum = IsInkSpace(info ->InputFormat) ? 655.35 : 65535.0;
if (ExtraFirst)
start = Extra;
for (i=0; i < nChan; i++) {
int index = DoSwap ? (nChan - i - 1) : i;
if (Planar)
v = (cmsFloat32Number) ((cmsFloat32Number*) accum)[(i + start) * Stride];
else
v = (cmsFloat32Number) ((cmsFloat32Number*) accum)[i + start];
vi = _cmsQuickSaturateWord(v * maximum);
if (Reverse)
vi = REVERSE_FLAVOR_16(vi);
wIn[index] = vi;
}
if (Extra == 0 && SwapFirst) {
cmsUInt16Number tmp = wIn[0];
memmove(&wIn[0], &wIn[1], (nChan-1) * sizeof(cmsUInt16Number));
wIn[nChan-1] = tmp;
}
if (T_PLANAR(info -> InputFormat))
return accum + sizeof(cmsFloat32Number);
else
return accum + (nChan + Extra) * sizeof(cmsFloat32Number);
}
// For 1 channel, we need to duplicate data (it comes in 0..1.0 range)
static
cmsUInt8Number* UnrollDouble1Chan(register _cmsTRANSFORM* info,
register cmsUInt16Number wIn[],
register cmsUInt8Number* accum,
register cmsUInt32Number Stride)
{
cmsFloat64Number* Inks = (cmsFloat64Number*) accum;
wIn[0] = wIn[1] = wIn[2] = _cmsQuickSaturateWord(Inks[0] * 65535.0);
return accum + sizeof(cmsFloat64Number);
cmsUNUSED_PARAMETER(info);
cmsUNUSED_PARAMETER(Stride);
}
//-------------------------------------------------------------------------------------------------------------------
// For anything going from cmsFloat32Number
static
cmsUInt8Number* UnrollFloatsToFloat(_cmsTRANSFORM* info,
cmsFloat32Number wIn[],
cmsUInt8Number* accum,
cmsUInt32Number Stride)
{
int nChan = T_CHANNELS(info -> InputFormat);
int DoSwap = T_DOSWAP(info ->InputFormat);
int Reverse = T_FLAVOR(info ->InputFormat);
int SwapFirst = T_SWAPFIRST(info -> InputFormat);
int Extra = T_EXTRA(info -> InputFormat);
int ExtraFirst = DoSwap ^ SwapFirst;
int Planar = T_PLANAR(info -> InputFormat);
cmsFloat32Number v;
int i, start = 0;
cmsFloat32Number maximum = IsInkSpace(info ->InputFormat) ? 100.0F : 1.0F;
if (ExtraFirst)
start = Extra;
for (i=0; i < nChan; i++) {
int index = DoSwap ? (nChan - i - 1) : i;
if (Planar)
v = (cmsFloat32Number) ((cmsFloat32Number*) accum)[(i + start) * Stride];
else
v = (cmsFloat32Number) ((cmsFloat32Number*) accum)[i + start];
v /= maximum;
wIn[index] = Reverse ? 1 - v : v;
}
if (Extra == 0 && SwapFirst) {
cmsFloat32Number tmp = wIn[0];
memmove(&wIn[0], &wIn[1], (nChan-1) * sizeof(cmsFloat32Number));
wIn[nChan-1] = tmp;
}
if (T_PLANAR(info -> InputFormat))
return accum + sizeof(cmsFloat32Number);
else
return accum + (nChan + Extra) * sizeof(cmsFloat32Number);
}
// For anything going from double
static
cmsUInt8Number* UnrollDoublesToFloat(_cmsTRANSFORM* info,
cmsFloat32Number wIn[],
cmsUInt8Number* accum,
cmsUInt32Number Stride)
{
int nChan = T_CHANNELS(info -> InputFormat);
int DoSwap = T_DOSWAP(info ->InputFormat);
int Reverse = T_FLAVOR(info ->InputFormat);
int SwapFirst = T_SWAPFIRST(info -> InputFormat);
int Extra = T_EXTRA(info -> InputFormat);
int ExtraFirst = DoSwap ^ SwapFirst;
int Planar = T_PLANAR(info -> InputFormat);
cmsFloat64Number v;
int i, start = 0;
cmsFloat64Number maximum = IsInkSpace(info ->InputFormat) ? 100.0 : 1.0;
if (ExtraFirst)
start = Extra;
for (i=0; i < nChan; i++) {
int index = DoSwap ? (nChan - i - 1) : i;
if (Planar)
v = (cmsFloat64Number) ((cmsFloat64Number*) accum)[(i + start) * Stride];
else
v = (cmsFloat64Number) ((cmsFloat64Number*) accum)[i + start];
v /= maximum;
wIn[index] = (cmsFloat32Number) (Reverse ? 1.0 - v : v);
}
if (Extra == 0 && SwapFirst) {
cmsFloat32Number tmp = wIn[0];
memmove(&wIn[0], &wIn[1], (nChan-1) * sizeof(cmsFloat32Number));
wIn[nChan-1] = tmp;
}
if (T_PLANAR(info -> InputFormat))
return accum + sizeof(cmsFloat64Number);
else
return accum + (nChan + Extra) * sizeof(cmsFloat64Number);
}
// From Lab double to cmsFloat32Number
static
cmsUInt8Number* UnrollLabDoubleToFloat(_cmsTRANSFORM* info,
cmsFloat32Number wIn[],
cmsUInt8Number* accum,
cmsUInt32Number Stride)
{
cmsFloat64Number* Pt = (cmsFloat64Number*) accum;
if (T_PLANAR(info -> InputFormat)) {
wIn[0] = (cmsFloat32Number) (Pt[0] / 100.0); // from 0..100 to 0..1
wIn[1] = (cmsFloat32Number) ((Pt[Stride] + 128) / 255.0); // form -128..+127 to 0..1
wIn[2] = (cmsFloat32Number) ((Pt[Stride*2] + 128) / 255.0);
return accum + sizeof(cmsFloat64Number);
}
else {
wIn[0] = (cmsFloat32Number) (Pt[0] / 100.0); // from 0..100 to 0..1
wIn[1] = (cmsFloat32Number) ((Pt[1] + 128) / 255.0); // form -128..+127 to 0..1
wIn[2] = (cmsFloat32Number) ((Pt[2] + 128) / 255.0);
accum += sizeof(cmsFloat64Number)*(3 + T_EXTRA(info ->InputFormat));
return accum;
}
}
// From Lab double to cmsFloat32Number
static
cmsUInt8Number* UnrollLabFloatToFloat(_cmsTRANSFORM* info,
cmsFloat32Number wIn[],
cmsUInt8Number* accum,
cmsUInt32Number Stride)
{
cmsFloat32Number* Pt = (cmsFloat32Number*) accum;
if (T_PLANAR(info -> InputFormat)) {
wIn[0] = (cmsFloat32Number) (Pt[0] / 100.0); // from 0..100 to 0..1
wIn[1] = (cmsFloat32Number) ((Pt[Stride] + 128) / 255.0); // form -128..+127 to 0..1
wIn[2] = (cmsFloat32Number) ((Pt[Stride*2] + 128) / 255.0);
return accum + sizeof(cmsFloat32Number);
}
else {
wIn[0] = (cmsFloat32Number) (Pt[0] / 100.0); // from 0..100 to 0..1
wIn[1] = (cmsFloat32Number) ((Pt[1] + 128) / 255.0); // form -128..+127 to 0..1
wIn[2] = (cmsFloat32Number) ((Pt[2] + 128) / 255.0);
accum += sizeof(cmsFloat32Number)*(3 + T_EXTRA(info ->InputFormat));
return accum;
}
}
// 1.15 fixed point, that means maximum value is MAX_ENCODEABLE_XYZ (0xFFFF)
static
cmsUInt8Number* UnrollXYZDoubleToFloat(_cmsTRANSFORM* info,
cmsFloat32Number wIn[],
cmsUInt8Number* accum,
cmsUInt32Number Stride)
{
cmsFloat64Number* Pt = (cmsFloat64Number*) accum;
if (T_PLANAR(info -> InputFormat)) {
wIn[0] = (cmsFloat32Number) (Pt[0] / MAX_ENCODEABLE_XYZ);
wIn[1] = (cmsFloat32Number) (Pt[Stride] / MAX_ENCODEABLE_XYZ);
wIn[2] = (cmsFloat32Number) (Pt[Stride*2] / MAX_ENCODEABLE_XYZ);
return accum + sizeof(cmsFloat64Number);
}
else {
wIn[0] = (cmsFloat32Number) (Pt[0] / MAX_ENCODEABLE_XYZ);
wIn[1] = (cmsFloat32Number) (Pt[1] / MAX_ENCODEABLE_XYZ);
wIn[2] = (cmsFloat32Number) (Pt[2] / MAX_ENCODEABLE_XYZ);
accum += sizeof(cmsFloat64Number)*(3 + T_EXTRA(info ->InputFormat));
return accum;
}
}
static
cmsUInt8Number* UnrollXYZFloatToFloat(_cmsTRANSFORM* info,
cmsFloat32Number wIn[],
cmsUInt8Number* accum,
cmsUInt32Number Stride)
{
cmsFloat32Number* Pt = (cmsFloat32Number*) accum;
if (T_PLANAR(info -> InputFormat)) {
wIn[0] = (cmsFloat32Number) (Pt[0] / MAX_ENCODEABLE_XYZ);
wIn[1] = (cmsFloat32Number) (Pt[Stride] / MAX_ENCODEABLE_XYZ);
wIn[2] = (cmsFloat32Number) (Pt[Stride*2] / MAX_ENCODEABLE_XYZ);
return accum + sizeof(cmsFloat32Number);
}
else {
wIn[0] = (cmsFloat32Number) (Pt[0] / MAX_ENCODEABLE_XYZ);
wIn[1] = (cmsFloat32Number) (Pt[1] / MAX_ENCODEABLE_XYZ);
wIn[2] = (cmsFloat32Number) (Pt[2] / MAX_ENCODEABLE_XYZ);
accum += sizeof(cmsFloat32Number)*(3 + T_EXTRA(info ->InputFormat));
return accum;
}
}
// Packing routines -----------------------------------------------------------------------------------------------------------
// Generic chunky for byte
static
cmsUInt8Number* PackAnyBytes(register _cmsTRANSFORM* info,
register cmsUInt16Number wOut[],
register cmsUInt8Number* output,
register cmsUInt32Number Stride)
{
int nChan = T_CHANNELS(info -> OutputFormat);
int DoSwap = T_DOSWAP(info ->OutputFormat);
int Reverse = T_FLAVOR(info ->OutputFormat);
int Extra = T_EXTRA(info -> OutputFormat);
int SwapFirst = T_SWAPFIRST(info -> OutputFormat);
int ExtraFirst = DoSwap ^ SwapFirst;
cmsUInt8Number* swap1;
cmsUInt8Number v = 0;
int i;
swap1 = output;
if (ExtraFirst) {
output += Extra;
}
for (i=0; i < nChan; i++) {
int index = DoSwap ? (nChan - i - 1) : i;
v = FROM_16_TO_8(wOut[index]);
if (Reverse)
v = REVERSE_FLAVOR_8(v);
*output++ = v;
}
if (!ExtraFirst) {
output += Extra;
}
if (Extra == 0 && SwapFirst) {
memmove(swap1 + 1, swap1, nChan-1);
*swap1 = v;
}
return output;
cmsUNUSED_PARAMETER(Stride);
}
static
cmsUInt8Number* PackAnyWords(register _cmsTRANSFORM* info,
register cmsUInt16Number wOut[],
register cmsUInt8Number* output,
register cmsUInt32Number Stride)
{
int nChan = T_CHANNELS(info -> OutputFormat);
int SwapEndian = T_ENDIAN16(info -> InputFormat);
int DoSwap = T_DOSWAP(info ->OutputFormat);
int Reverse = T_FLAVOR(info ->OutputFormat);
int Extra = T_EXTRA(info -> OutputFormat);
int SwapFirst = T_SWAPFIRST(info -> OutputFormat);
int ExtraFirst = DoSwap ^ SwapFirst;
cmsUInt16Number* swap1;
cmsUInt16Number v = 0;
int i;
swap1 = (cmsUInt16Number*) output;
if (ExtraFirst) {
output += Extra * sizeof(cmsUInt16Number);
}
for (i=0; i < nChan; i++) {
int index = DoSwap ? (nChan - i - 1) : i;
v = wOut[index];
if (SwapEndian)
v = CHANGE_ENDIAN(v);
if (Reverse)
v = REVERSE_FLAVOR_16(v);
*(cmsUInt16Number*) output = v;
output += sizeof(cmsUInt16Number);
}
if (!ExtraFirst) {
output += Extra * sizeof(cmsUInt16Number);
}
if (Extra == 0 && SwapFirst) {
memmove(swap1 + 1, swap1, (nChan-1)* sizeof(cmsUInt16Number));
*swap1 = v;
}
return output;
cmsUNUSED_PARAMETER(Stride);
}
static
cmsUInt8Number* PackPlanarBytes(register _cmsTRANSFORM* info,
register cmsUInt16Number wOut[],
register cmsUInt8Number* output,
register cmsUInt32Number Stride)
{
int nChan = T_CHANNELS(info -> OutputFormat);
int DoSwap = T_DOSWAP(info ->OutputFormat);
int SwapFirst = T_SWAPFIRST(info ->OutputFormat);
int Reverse = T_FLAVOR(info ->OutputFormat);
int i;
cmsUInt8Number* Init = output;
if (DoSwap ^ SwapFirst) {
output += T_EXTRA(info -> OutputFormat) * Stride;
}
for (i=0; i < nChan; i++) {
int index = DoSwap ? (nChan - i - 1) : i;
cmsUInt8Number v = FROM_16_TO_8(wOut[index]);
*(cmsUInt8Number*) output = (cmsUInt8Number) (Reverse ? REVERSE_FLAVOR_8(v) : v);
output += Stride;
}
return (Init + 1);
cmsUNUSED_PARAMETER(Stride);
}
static
cmsUInt8Number* PackPlanarWords(register _cmsTRANSFORM* info,
register cmsUInt16Number wOut[],
register cmsUInt8Number* output,
register cmsUInt32Number Stride)
{
int nChan = T_CHANNELS(info -> OutputFormat);
int DoSwap = T_DOSWAP(info ->OutputFormat);
int Reverse= T_FLAVOR(info ->OutputFormat);
int SwapEndian = T_ENDIAN16(info -> OutputFormat);
int i;
cmsUInt8Number* Init = output;
cmsUInt16Number v;
if (DoSwap) {
output += T_EXTRA(info -> OutputFormat) * Stride * sizeof(cmsUInt16Number);
}
for (i=0; i < nChan; i++) {
int index = DoSwap ? (nChan - i - 1) : i;
v = wOut[index];
if (SwapEndian)
v = CHANGE_ENDIAN(v);
if (Reverse)
v = REVERSE_FLAVOR_16(v);
*(cmsUInt16Number*) output = v;
output += (Stride * sizeof(cmsUInt16Number));
}
return (Init + sizeof(cmsUInt16Number));
}
// CMYKcm (unrolled for speed)
static
cmsUInt8Number* Pack6Bytes(register _cmsTRANSFORM* info,
register cmsUInt16Number wOut[],
register cmsUInt8Number* output,
register cmsUInt32Number Stride)
{
*output++ = FROM_16_TO_8(wOut[0]);
*output++ = FROM_16_TO_8(wOut[1]);
*output++ = FROM_16_TO_8(wOut[2]);
*output++ = FROM_16_TO_8(wOut[3]);
*output++ = FROM_16_TO_8(wOut[4]);
*output++ = FROM_16_TO_8(wOut[5]);
return output;
cmsUNUSED_PARAMETER(info);
cmsUNUSED_PARAMETER(Stride);
}
// KCMYcm
static
cmsUInt8Number* Pack6BytesSwap(register _cmsTRANSFORM* info,
register cmsUInt16Number wOut[],
register cmsUInt8Number* output,
register cmsUInt32Number Stride)
{
*output++ = FROM_16_TO_8(wOut[5]);
*output++ = FROM_16_TO_8(wOut[4]);
*output++ = FROM_16_TO_8(wOut[3]);
*output++ = FROM_16_TO_8(wOut[2]);
*output++ = FROM_16_TO_8(wOut[1]);
*output++ = FROM_16_TO_8(wOut[0]);
return output;
cmsUNUSED_PARAMETER(info);
cmsUNUSED_PARAMETER(Stride);
}
// CMYKcm
static
cmsUInt8Number* Pack6Words(register _cmsTRANSFORM* info,
register cmsUInt16Number wOut[],
register cmsUInt8Number* output,
register cmsUInt32Number Stride)
{
*(cmsUInt16Number*) output = wOut[0];
output+= 2;
*(cmsUInt16Number*) output = wOut[1];
output+= 2;
*(cmsUInt16Number*) output = wOut[2];
output+= 2;
*(cmsUInt16Number*) output = wOut[3];
output+= 2;
*(cmsUInt16Number*) output = wOut[4];
output+= 2;
*(cmsUInt16Number*) output = wOut[5];
output+= 2;
return output;
cmsUNUSED_PARAMETER(info);
cmsUNUSED_PARAMETER(Stride);
}
// KCMYcm
static
cmsUInt8Number* Pack6WordsSwap(register _cmsTRANSFORM* info,
register cmsUInt16Number wOut[],
register cmsUInt8Number* output,
register cmsUInt32Number Stride)
{
*(cmsUInt16Number*) output = wOut[5];
output+= 2;
*(cmsUInt16Number*) output = wOut[4];
output+= 2;
*(cmsUInt16Number*) output = wOut[3];
output+= 2;
*(cmsUInt16Number*) output = wOut[2];
output+= 2;
*(cmsUInt16Number*) output = wOut[1];
output+= 2;
*(cmsUInt16Number*) output = wOut[0];
output+= 2;
return output;
cmsUNUSED_PARAMETER(info);
cmsUNUSED_PARAMETER(Stride);
}
static
cmsUInt8Number* Pack4Bytes(register _cmsTRANSFORM* info,
register cmsUInt16Number wOut[],
register cmsUInt8Number* output,
register cmsUInt32Number Stride)
{
*output++ = FROM_16_TO_8(wOut[0]);
*output++ = FROM_16_TO_8(wOut[1]);
*output++ = FROM_16_TO_8(wOut[2]);
*output++ = FROM_16_TO_8(wOut[3]);
return output;
cmsUNUSED_PARAMETER(info);
cmsUNUSED_PARAMETER(Stride);
}
static
cmsUInt8Number* Pack4BytesReverse(register _cmsTRANSFORM* info,
register cmsUInt16Number wOut[],
register cmsUInt8Number* output,
register cmsUInt32Number Stride)
{
*output++ = REVERSE_FLAVOR_8(FROM_16_TO_8(wOut[0]));
*output++ = REVERSE_FLAVOR_8(FROM_16_TO_8(wOut[1]));
*output++ = REVERSE_FLAVOR_8(FROM_16_TO_8(wOut[2]));
*output++ = REVERSE_FLAVOR_8(FROM_16_TO_8(wOut[3]));
return output;
cmsUNUSED_PARAMETER(info);
cmsUNUSED_PARAMETER(Stride);
}
static
cmsUInt8Number* Pack4BytesSwapFirst(register _cmsTRANSFORM* info,
register cmsUInt16Number wOut[],
register cmsUInt8Number* output,
register cmsUInt32Number Stride)
{
*output++ = FROM_16_TO_8(wOut[3]);
*output++ = FROM_16_TO_8(wOut[0]);
*output++ = FROM_16_TO_8(wOut[1]);
*output++ = FROM_16_TO_8(wOut[2]);
return output;
cmsUNUSED_PARAMETER(info);
cmsUNUSED_PARAMETER(Stride);
}
// ABGR
static
cmsUInt8Number* Pack4BytesSwap(register _cmsTRANSFORM* info,
register cmsUInt16Number wOut[],
register cmsUInt8Number* output,
register cmsUInt32Number Stride)
{
*output++ = FROM_16_TO_8(wOut[3]);
*output++ = FROM_16_TO_8(wOut[2]);
*output++ = FROM_16_TO_8(wOut[1]);
*output++ = FROM_16_TO_8(wOut[0]);
return output;
cmsUNUSED_PARAMETER(info);
cmsUNUSED_PARAMETER(Stride);
}
static
cmsUInt8Number* Pack4BytesSwapSwapFirst(register _cmsTRANSFORM* info,
register cmsUInt16Number wOut[],
register cmsUInt8Number* output,
register cmsUInt32Number Stride)
{
*output++ = FROM_16_TO_8(wOut[2]);
*output++ = FROM_16_TO_8(wOut[1]);
*output++ = FROM_16_TO_8(wOut[0]);
*output++ = FROM_16_TO_8(wOut[3]);
return output;
cmsUNUSED_PARAMETER(info);
cmsUNUSED_PARAMETER(Stride);
}
static
cmsUInt8Number* Pack4Words(register _cmsTRANSFORM* info,
register cmsUInt16Number wOut[],
register cmsUInt8Number* output,
register cmsUInt32Number Stride)
{
*(cmsUInt16Number*) output = wOut[0];
output+= 2;
*(cmsUInt16Number*) output = wOut[1];
output+= 2;
*(cmsUInt16Number*) output = wOut[2];
output+= 2;
*(cmsUInt16Number*) output = wOut[3];
output+= 2;
return output;
cmsUNUSED_PARAMETER(info);
cmsUNUSED_PARAMETER(Stride);
}
static
cmsUInt8Number* Pack4WordsReverse(register _cmsTRANSFORM* info,
register cmsUInt16Number wOut[],
register cmsUInt8Number* output,
register cmsUInt32Number Stride)
{
*(cmsUInt16Number*) output = REVERSE_FLAVOR_16(wOut[0]);
output+= 2;
*(cmsUInt16Number*) output = REVERSE_FLAVOR_16(wOut[1]);
output+= 2;
*(cmsUInt16Number*) output = REVERSE_FLAVOR_16(wOut[2]);
output+= 2;
*(cmsUInt16Number*) output = REVERSE_FLAVOR_16(wOut[3]);
output+= 2;
return output;
cmsUNUSED_PARAMETER(info);
cmsUNUSED_PARAMETER(Stride);
}
// ABGR
static
cmsUInt8Number* Pack4WordsSwap(register _cmsTRANSFORM* info,
register cmsUInt16Number wOut[],
register cmsUInt8Number* output,
register cmsUInt32Number Stride)
{
*(cmsUInt16Number*) output = wOut[3];
output+= 2;
*(cmsUInt16Number*) output = wOut[2];
output+= 2;
*(cmsUInt16Number*) output = wOut[1];
output+= 2;
*(cmsUInt16Number*) output = wOut[0];
output+= 2;
return output;
cmsUNUSED_PARAMETER(info);
cmsUNUSED_PARAMETER(Stride);
}
// CMYK
static
cmsUInt8Number* Pack4WordsBigEndian(register _cmsTRANSFORM* info,
register cmsUInt16Number wOut[],
register cmsUInt8Number* output,
register cmsUInt32Number Stride)
{
*(cmsUInt16Number*) output = CHANGE_ENDIAN(wOut[0]);
output+= 2;
*(cmsUInt16Number*) output = CHANGE_ENDIAN(wOut[1]);
output+= 2;
*(cmsUInt16Number*) output = CHANGE_ENDIAN(wOut[2]);
output+= 2;
*(cmsUInt16Number*) output = CHANGE_ENDIAN(wOut[3]);
output+= 2;
return output;
cmsUNUSED_PARAMETER(info);
cmsUNUSED_PARAMETER(Stride);
}
static
cmsUInt8Number* PackLabV2_8(register _cmsTRANSFORM* info,
register cmsUInt16Number wOut[],
register cmsUInt8Number* output,
register cmsUInt32Number Stride)
{
*output++ = FROM_16_TO_8(FomLabV4ToLabV2(wOut[0]));
*output++ = FROM_16_TO_8(FomLabV4ToLabV2(wOut[1]));
*output++ = FROM_16_TO_8(FomLabV4ToLabV2(wOut[2]));
return output;
cmsUNUSED_PARAMETER(info);
cmsUNUSED_PARAMETER(Stride);
}
static
cmsUInt8Number* PackALabV2_8(register _cmsTRANSFORM* info,
register cmsUInt16Number wOut[],
register cmsUInt8Number* output,
register cmsUInt32Number Stride)
{
output++;
*output++ = FROM_16_TO_8(FomLabV4ToLabV2(wOut[0]));
*output++ = FROM_16_TO_8(FomLabV4ToLabV2(wOut[1]));
*output++ = FROM_16_TO_8(FomLabV4ToLabV2(wOut[2]));
return output;
cmsUNUSED_PARAMETER(info);
cmsUNUSED_PARAMETER(Stride);
}
static
cmsUInt8Number* PackLabV2_16(register _cmsTRANSFORM* info,
register cmsUInt16Number wOut[],
register cmsUInt8Number* output,
register cmsUInt32Number Stride)
{
*(cmsUInt16Number*) output = FomLabV4ToLabV2(wOut[0]);
output += 2;
*(cmsUInt16Number*) output = FomLabV4ToLabV2(wOut[1]);
output += 2;
*(cmsUInt16Number*) output = FomLabV4ToLabV2(wOut[2]);
output += 2;
return output;
cmsUNUSED_PARAMETER(info);
cmsUNUSED_PARAMETER(Stride);
}
static
cmsUInt8Number* Pack3Bytes(register _cmsTRANSFORM* info,
register cmsUInt16Number wOut[],
register cmsUInt8Number* output,
register cmsUInt32Number Stride)
{
*output++ = FROM_16_TO_8(wOut[0]);
*output++ = FROM_16_TO_8(wOut[1]);
*output++ = FROM_16_TO_8(wOut[2]);
return output;
cmsUNUSED_PARAMETER(info);
cmsUNUSED_PARAMETER(Stride);
}
static
cmsUInt8Number* Pack3BytesOptimized(register _cmsTRANSFORM* info,
register cmsUInt16Number wOut[],
register cmsUInt8Number* output,
register cmsUInt32Number Stride)
{
*output++ = (wOut[0] & 0xFF);
*output++ = (wOut[1] & 0xFF);
*output++ = (wOut[2] & 0xFF);
return output;
cmsUNUSED_PARAMETER(info);
cmsUNUSED_PARAMETER(Stride);
}
static
cmsUInt8Number* Pack3BytesSwap(register _cmsTRANSFORM* info,
register cmsUInt16Number wOut[],
register cmsUInt8Number* output,
register cmsUInt32Number Stride)
{
*output++ = FROM_16_TO_8(wOut[2]);
*output++ = FROM_16_TO_8(wOut[1]);
*output++ = FROM_16_TO_8(wOut[0]);
return output;
cmsUNUSED_PARAMETER(info);
cmsUNUSED_PARAMETER(Stride);
}
static
cmsUInt8Number* Pack3BytesSwapOptimized(register _cmsTRANSFORM* info,
register cmsUInt16Number wOut[],
register cmsUInt8Number* output,
register cmsUInt32Number Stride)
{
*output++ = (wOut[2] & 0xFF);
*output++ = (wOut[1] & 0xFF);
*output++ = (wOut[0] & 0xFF);
return output;
cmsUNUSED_PARAMETER(info);
cmsUNUSED_PARAMETER(Stride);
}
static
cmsUInt8Number* Pack3Words(register _cmsTRANSFORM* info,
register cmsUInt16Number wOut[],
register cmsUInt8Number* output,
register cmsUInt32Number Stride)
{
*(cmsUInt16Number*) output = wOut[0];
output+= 2;
*(cmsUInt16Number*) output = wOut[1];
output+= 2;
*(cmsUInt16Number*) output = wOut[2];
output+= 2;
return output;
cmsUNUSED_PARAMETER(info);
cmsUNUSED_PARAMETER(Stride);
}
static
cmsUInt8Number* Pack3WordsSwap(register _cmsTRANSFORM* info,
register cmsUInt16Number wOut[],
register cmsUInt8Number* output,
register cmsUInt32Number Stride)
{
*(cmsUInt16Number*) output = wOut[2];
output+= 2;
*(cmsUInt16Number*) output = wOut[1];
output+= 2;
*(cmsUInt16Number*) output = wOut[0];
output+= 2;
return output;
cmsUNUSED_PARAMETER(info);
cmsUNUSED_PARAMETER(Stride);
}
static
cmsUInt8Number* Pack3WordsBigEndian(register _cmsTRANSFORM* info,
register cmsUInt16Number wOut[],
register cmsUInt8Number* output,
register cmsUInt32Number Stride)
{
*(cmsUInt16Number*) output = CHANGE_ENDIAN(wOut[0]);
output+= 2;
*(cmsUInt16Number*) output = CHANGE_ENDIAN(wOut[1]);
output+= 2;
*(cmsUInt16Number*) output = CHANGE_ENDIAN(wOut[2]);
output+= 2;
return output;
cmsUNUSED_PARAMETER(info);
cmsUNUSED_PARAMETER(Stride);
}
static
cmsUInt8Number* Pack3BytesAndSkip1(register _cmsTRANSFORM* info,
register cmsUInt16Number wOut[],
register cmsUInt8Number* output,
register cmsUInt32Number Stride)
{
*output++ = FROM_16_TO_8(wOut[0]);
*output++ = FROM_16_TO_8(wOut[1]);
*output++ = FROM_16_TO_8(wOut[2]);
output++;
return output;
cmsUNUSED_PARAMETER(info);
cmsUNUSED_PARAMETER(Stride);
}
static
cmsUInt8Number* Pack3BytesAndSkip1Optimized(register _cmsTRANSFORM* info,
register cmsUInt16Number wOut[],
register cmsUInt8Number* output,
register cmsUInt32Number Stride)
{
*output++ = (wOut[0] & 0xFF);
*output++ = (wOut[1] & 0xFF);
*output++ = (wOut[2] & 0xFF);
output++;
return output;
cmsUNUSED_PARAMETER(info);
cmsUNUSED_PARAMETER(Stride);
}
static
cmsUInt8Number* Pack3BytesAndSkip1SwapFirst(register _cmsTRANSFORM* info,
register cmsUInt16Number wOut[],
register cmsUInt8Number* output,
register cmsUInt32Number Stride)
{
output++;
*output++ = FROM_16_TO_8(wOut[0]);
*output++ = FROM_16_TO_8(wOut[1]);
*output++ = FROM_16_TO_8(wOut[2]);
return output;
cmsUNUSED_PARAMETER(info);
cmsUNUSED_PARAMETER(Stride);
}
static
cmsUInt8Number* Pack3BytesAndSkip1SwapFirstOptimized(register _cmsTRANSFORM* info,
register cmsUInt16Number wOut[],
register cmsUInt8Number* output,
register cmsUInt32Number Stride)
{
output++;
*output++ = (wOut[0] & 0xFF);
*output++ = (wOut[1] & 0xFF);
*output++ = (wOut[2] & 0xFF);
return output;
cmsUNUSED_PARAMETER(info);
cmsUNUSED_PARAMETER(Stride);
}
static
cmsUInt8Number* Pack3BytesAndSkip1Swap(register _cmsTRANSFORM* info,
register cmsUInt16Number wOut[],
register cmsUInt8Number* output,
register cmsUInt32Number Stride)
{
output++;
*output++ = FROM_16_TO_8(wOut[2]);
*output++ = FROM_16_TO_8(wOut[1]);
*output++ = FROM_16_TO_8(wOut[0]);
return output;
cmsUNUSED_PARAMETER(info);
cmsUNUSED_PARAMETER(Stride);
}
static
cmsUInt8Number* Pack3BytesAndSkip1SwapOptimized(register _cmsTRANSFORM* info,
register cmsUInt16Number wOut[],
register cmsUInt8Number* output,
register cmsUInt32Number Stride)
{
output++;
*output++ = (wOut[2] & 0xFF);
*output++ = (wOut[1] & 0xFF);
*output++ = (wOut[0] & 0xFF);
return output;
cmsUNUSED_PARAMETER(info);
cmsUNUSED_PARAMETER(Stride);
}
static
cmsUInt8Number* Pack3BytesAndSkip1SwapSwapFirst(register _cmsTRANSFORM* info,
register cmsUInt16Number wOut[],
register cmsUInt8Number* output,
register cmsUInt32Number Stride)
{
*output++ = FROM_16_TO_8(wOut[2]);
*output++ = FROM_16_TO_8(wOut[1]);
*output++ = FROM_16_TO_8(wOut[0]);
output++;
return output;
cmsUNUSED_PARAMETER(info);
cmsUNUSED_PARAMETER(Stride);
}
static
cmsUInt8Number* Pack3BytesAndSkip1SwapSwapFirstOptimized(register _cmsTRANSFORM* info,
register cmsUInt16Number wOut[],
register cmsUInt8Number* output,
register cmsUInt32Number Stride)
{
*output++ = (wOut[2] & 0xFF);
*output++ = (wOut[1] & 0xFF);
*output++ = (wOut[0] & 0xFF);
output++;
return output;
cmsUNUSED_PARAMETER(info);
cmsUNUSED_PARAMETER(Stride);
}
static
cmsUInt8Number* Pack3WordsAndSkip1(register _cmsTRANSFORM* info,
register cmsUInt16Number wOut[],
register cmsUInt8Number* output,
register cmsUInt32Number Stride)
{
*(cmsUInt16Number*) output = wOut[0];
output+= 2;
*(cmsUInt16Number*) output = wOut[1];
output+= 2;
*(cmsUInt16Number*) output = wOut[2];
output+= 2;
output+= 2;
return output;
cmsUNUSED_PARAMETER(info);
cmsUNUSED_PARAMETER(Stride);
}
static
cmsUInt8Number* Pack3WordsAndSkip1Swap(register _cmsTRANSFORM* info,
register cmsUInt16Number wOut[],
register cmsUInt8Number* output,
register cmsUInt32Number Stride)
{
output+= 2;
*(cmsUInt16Number*) output = wOut[2];
output+= 2;
*(cmsUInt16Number*) output = wOut[1];
output+= 2;
*(cmsUInt16Number*) output = wOut[0];
output+= 2;
return output;
cmsUNUSED_PARAMETER(info);
cmsUNUSED_PARAMETER(Stride);
}
static
cmsUInt8Number* Pack3WordsAndSkip1SwapFirst(register _cmsTRANSFORM* info,
register cmsUInt16Number wOut[],
register cmsUInt8Number* output,
register cmsUInt32Number Stride)
{
output+= 2;
*(cmsUInt16Number*) output = wOut[0];
output+= 2;
*(cmsUInt16Number*) output = wOut[1];
output+= 2;
*(cmsUInt16Number*) output = wOut[2];
output+= 2;
return output;
cmsUNUSED_PARAMETER(info);
cmsUNUSED_PARAMETER(Stride);
}
static
cmsUInt8Number* Pack3WordsAndSkip1SwapSwapFirst(register _cmsTRANSFORM* info,
register cmsUInt16Number wOut[],
register cmsUInt8Number* output,
register cmsUInt32Number Stride)
{
*(cmsUInt16Number*) output = wOut[2];
output+= 2;
*(cmsUInt16Number*) output = wOut[1];
output+= 2;
*(cmsUInt16Number*) output = wOut[0];
output+= 2;
output+= 2;
return output;
cmsUNUSED_PARAMETER(info);
cmsUNUSED_PARAMETER(Stride);
}
static
cmsUInt8Number* Pack1Byte(register _cmsTRANSFORM* info,
register cmsUInt16Number wOut[],
register cmsUInt8Number* output,
register cmsUInt32Number Stride)
{
*output++ = FROM_16_TO_8(wOut[0]);
return output;
cmsUNUSED_PARAMETER(info);
cmsUNUSED_PARAMETER(Stride);
}
static
cmsUInt8Number* Pack1ByteReversed(register _cmsTRANSFORM* info,
register cmsUInt16Number wOut[],
register cmsUInt8Number* output,
register cmsUInt32Number Stride)
{
*output++ = FROM_16_TO_8(REVERSE_FLAVOR_16(wOut[0]));
return output;
cmsUNUSED_PARAMETER(info);
cmsUNUSED_PARAMETER(Stride);
}
static
cmsUInt8Number* Pack1ByteSkip1(register _cmsTRANSFORM* info,
register cmsUInt16Number wOut[],
register cmsUInt8Number* output,
register cmsUInt32Number Stride)
{
*output++ = FROM_16_TO_8(wOut[0]);
output++;
return output;
cmsUNUSED_PARAMETER(info);
cmsUNUSED_PARAMETER(Stride);
}
static
cmsUInt8Number* Pack1ByteSkip1SwapFirst(register _cmsTRANSFORM* info,
register cmsUInt16Number wOut[],
register cmsUInt8Number* output,
register cmsUInt32Number Stride)
{
output++;
*output++ = FROM_16_TO_8(wOut[0]);
return output;
cmsUNUSED_PARAMETER(info);
cmsUNUSED_PARAMETER(Stride);
}
static
cmsUInt8Number* Pack1Word(register _cmsTRANSFORM* info,
register cmsUInt16Number wOut[],
register cmsUInt8Number* output,
register cmsUInt32Number Stride)
{
*(cmsUInt16Number*) output = wOut[0];
output+= 2;
return output;
cmsUNUSED_PARAMETER(info);
cmsUNUSED_PARAMETER(Stride);
}
static
cmsUInt8Number* Pack1WordReversed(register _cmsTRANSFORM* info,
register cmsUInt16Number wOut[],
register cmsUInt8Number* output,
register cmsUInt32Number Stride)
{
*(cmsUInt16Number*) output = REVERSE_FLAVOR_16(wOut[0]);
output+= 2;
return output;
cmsUNUSED_PARAMETER(info);
cmsUNUSED_PARAMETER(Stride);
}
static
cmsUInt8Number* Pack1WordBigEndian(register _cmsTRANSFORM* info,
register cmsUInt16Number wOut[],
register cmsUInt8Number* output,
register cmsUInt32Number Stride)
{
*(cmsUInt16Number*) output = CHANGE_ENDIAN(wOut[0]);
output+= 2;
return output;
cmsUNUSED_PARAMETER(info);
cmsUNUSED_PARAMETER(Stride);
}
static
cmsUInt8Number* Pack1WordSkip1(register _cmsTRANSFORM* info,
register cmsUInt16Number wOut[],
register cmsUInt8Number* output,
register cmsUInt32Number Stride)
{
*(cmsUInt16Number*) output = wOut[0];
output+= 4;
return output;
cmsUNUSED_PARAMETER(info);
cmsUNUSED_PARAMETER(Stride);
}
static
cmsUInt8Number* Pack1WordSkip1SwapFirst(register _cmsTRANSFORM* info,
register cmsUInt16Number wOut[],
register cmsUInt8Number* output,
register cmsUInt32Number Stride)
{
output += 2;
*(cmsUInt16Number*) output = wOut[0];
output+= 2;
return output;
cmsUNUSED_PARAMETER(info);
cmsUNUSED_PARAMETER(Stride);
}
// Unencoded Float values -- don't try optimize speed
static
cmsUInt8Number* PackLabDoubleFrom16(register _cmsTRANSFORM* info,
register cmsUInt16Number wOut[],
register cmsUInt8Number* output,
register cmsUInt32Number Stride)
{
if (T_PLANAR(info -> OutputFormat)) {
cmsCIELab Lab;
cmsFloat64Number* Out = (cmsFloat64Number*) output;
cmsLabEncoded2Float(&Lab, wOut);
Out[0] = Lab.L;
Out[Stride] = Lab.a;
Out[Stride*2] = Lab.b;
return output + sizeof(cmsFloat64Number);
}
else {
cmsLabEncoded2Float((cmsCIELab*) output, wOut);
return output + (sizeof(cmsCIELab) + T_EXTRA(info ->OutputFormat) * sizeof(cmsFloat64Number));
}
}
static
cmsUInt8Number* PackLabFloatFrom16(register _cmsTRANSFORM* info,
register cmsUInt16Number wOut[],
register cmsUInt8Number* output,
register cmsUInt32Number Stride)
{
cmsCIELab Lab;
cmsLabEncoded2Float(&Lab, wOut);
if (T_PLANAR(info -> OutputFormat)) {
cmsFloat32Number* Out = (cmsFloat32Number*) output;
Out[0] = (cmsFloat32Number)Lab.L;
Out[Stride] = (cmsFloat32Number)Lab.a;
Out[Stride*2] = (cmsFloat32Number)Lab.b;
return output + sizeof(cmsFloat32Number);
}
else {
((cmsFloat32Number*) output)[0] = (cmsFloat32Number) Lab.L;
((cmsFloat32Number*) output)[1] = (cmsFloat32Number) Lab.a;
((cmsFloat32Number*) output)[2] = (cmsFloat32Number) Lab.b;
return output + (3 + T_EXTRA(info ->OutputFormat)) * sizeof(cmsFloat32Number);
}
}
static
cmsUInt8Number* PackXYZDoubleFrom16(register _cmsTRANSFORM* Info,
register cmsUInt16Number wOut[],
register cmsUInt8Number* output,
register cmsUInt32Number Stride)
{
if (T_PLANAR(Info -> OutputFormat)) {
cmsCIEXYZ XYZ;
cmsFloat64Number* Out = (cmsFloat64Number*) output;
cmsXYZEncoded2Float(&XYZ, wOut);
Out[0] = XYZ.X;
Out[Stride] = XYZ.Y;
Out[Stride*2] = XYZ.Z;
return output + sizeof(cmsFloat64Number);
}
else {
cmsXYZEncoded2Float((cmsCIEXYZ*) output, wOut);
return output + (sizeof(cmsCIEXYZ) + T_EXTRA(Info ->OutputFormat) * sizeof(cmsFloat64Number));
}
}
static
cmsUInt8Number* PackDoubleFrom16(register _cmsTRANSFORM* info,
register cmsUInt16Number wOut[],
register cmsUInt8Number* output,
register cmsUInt32Number Stride)
{
int nChan = T_CHANNELS(info -> OutputFormat);
int DoSwap = T_DOSWAP(info ->OutputFormat);
int Reverse = T_FLAVOR(info ->OutputFormat);
int Extra = T_EXTRA(info -> OutputFormat);
int SwapFirst = T_SWAPFIRST(info -> OutputFormat);
int Planar = T_PLANAR(info -> OutputFormat);
int ExtraFirst = DoSwap ^ SwapFirst;
cmsFloat64Number maximum = IsInkSpace(info ->OutputFormat) ? 655.35 : 65535.0;
cmsFloat64Number v = 0;
cmsFloat64Number* swap1 = (cmsFloat64Number*) output;
int i, start = 0;
if (ExtraFirst)
start = Extra;
for (i=0; i < nChan; i++) {
int index = DoSwap ? (nChan - i - 1) : i;
v = (cmsFloat64Number) wOut[index] / maximum;
if (Reverse)
v = maximum - v;
if (Planar)
((cmsFloat64Number*) output)[(i + start) * Stride]= v;
else
((cmsFloat64Number*) output)[i + start] = v;
}
if (!ExtraFirst) {
output += Extra * sizeof(cmsFloat64Number);
}
if (Extra == 0 && SwapFirst) {
memmove(swap1 + 1, swap1, (nChan-1)* sizeof(cmsFloat64Number));
*swap1 = v;
}
if (T_PLANAR(info -> OutputFormat))
return output + sizeof(cmsFloat64Number);
else
return output + nChan * sizeof(cmsFloat64Number);
}
static
cmsUInt8Number* PackFloatFrom16(register _cmsTRANSFORM* info,
register cmsUInt16Number wOut[],
register cmsUInt8Number* output,
register cmsUInt32Number Stride)
{
int nChan = T_CHANNELS(info -> OutputFormat);
int DoSwap = T_DOSWAP(info ->OutputFormat);
int Reverse = T_FLAVOR(info ->OutputFormat);
int Extra = T_EXTRA(info -> OutputFormat);
int SwapFirst = T_SWAPFIRST(info -> OutputFormat);
int Planar = T_PLANAR(info -> OutputFormat);
int ExtraFirst = DoSwap ^ SwapFirst;
cmsFloat64Number maximum = IsInkSpace(info ->OutputFormat) ? 655.35 : 65535.0;
cmsFloat64Number v = 0;
cmsFloat32Number* swap1 = (cmsFloat32Number*) output;
int i, start = 0;
if (ExtraFirst)
start = Extra;
for (i=0; i < nChan; i++) {
int index = DoSwap ? (nChan - i - 1) : i;
v = (cmsFloat64Number) wOut[index] / maximum;
if (Reverse)
v = maximum - v;
if (Planar)
((cmsFloat32Number*) output)[(i + start ) * Stride]= (cmsFloat32Number) v;
else
((cmsFloat32Number*) output)[i + start] = (cmsFloat32Number) v;
}
if (!ExtraFirst) {
output += Extra * sizeof(cmsFloat32Number);
}
if (Extra == 0 && SwapFirst) {
memmove(swap1 + 1, swap1, (nChan-1)* sizeof(cmsFloat32Number));
*swap1 = (cmsFloat32Number) v;
}
if (T_PLANAR(info -> OutputFormat))
return output + sizeof(cmsFloat32Number);
else
return output + nChan * sizeof(cmsFloat32Number);
}
// --------------------------------------------------------------------------------------------------------
static
cmsUInt8Number* PackFloatsFromFloat(_cmsTRANSFORM* info,
cmsFloat32Number wOut[],
cmsUInt8Number* output,
cmsUInt32Number Stride)
{
int nChan = T_CHANNELS(info -> OutputFormat);
int DoSwap = T_DOSWAP(info ->OutputFormat);
int Reverse = T_FLAVOR(info ->OutputFormat);
int Extra = T_EXTRA(info -> OutputFormat);
int SwapFirst = T_SWAPFIRST(info -> OutputFormat);
int Planar = T_PLANAR(info -> OutputFormat);
int ExtraFirst = DoSwap ^ SwapFirst;
cmsFloat64Number maximum = IsInkSpace(info ->OutputFormat) ? 100.0 : 1.0;
cmsFloat32Number* swap1 = (cmsFloat32Number*) output;
cmsFloat64Number v = 0;
int i, start = 0;
if (ExtraFirst)
start = Extra;
for (i=0; i < nChan; i++) {
int index = DoSwap ? (nChan - i - 1) : i;
v = wOut[index] * maximum;
if (Reverse)
v = maximum - v;
if (Planar)
((cmsFloat32Number*) output)[(i + start)* Stride]= (cmsFloat32Number) v;
else
((cmsFloat32Number*) output)[i + start] = (cmsFloat32Number) v;
}
if (!ExtraFirst) {
output += Extra * sizeof(cmsFloat32Number);
}
if (Extra == 0 && SwapFirst) {
memmove(swap1 + 1, swap1, (nChan-1)* sizeof(cmsFloat32Number));
*swap1 = (cmsFloat32Number) v;
}
if (T_PLANAR(info -> OutputFormat))
return output + sizeof(cmsFloat32Number);
else
return output + nChan * sizeof(cmsFloat32Number);
}
static
cmsUInt8Number* PackDoublesFromFloat(_cmsTRANSFORM* info,
cmsFloat32Number wOut[],
cmsUInt8Number* output,
cmsUInt32Number Stride)
{
int nChan = T_CHANNELS(info -> OutputFormat);
int DoSwap = T_DOSWAP(info ->OutputFormat);
int Reverse = T_FLAVOR(info ->OutputFormat);
int Extra = T_EXTRA(info -> OutputFormat);
int SwapFirst = T_SWAPFIRST(info -> OutputFormat);
int Planar = T_PLANAR(info -> OutputFormat);
int ExtraFirst = DoSwap ^ SwapFirst;
cmsFloat64Number maximum = IsInkSpace(info ->OutputFormat) ? 100.0 : 1.0;
cmsFloat64Number v = 0;
cmsFloat64Number* swap1 = (cmsFloat64Number*) output;
int i, start = 0;
if (ExtraFirst)
start = Extra;
for (i=0; i < nChan; i++) {
int index = DoSwap ? (nChan - i - 1) : i;
v = wOut[index] * maximum;
if (Reverse)
v = maximum - v;
if (Planar)
((cmsFloat64Number*) output)[(i + start) * Stride] = v;
else
((cmsFloat64Number*) output)[i + start] = v;
}
if (!ExtraFirst) {
output += Extra * sizeof(cmsFloat64Number);
}
if (Extra == 0 && SwapFirst) {
memmove(swap1 + 1, swap1, (nChan-1)* sizeof(cmsFloat64Number));
*swap1 = v;
}
if (T_PLANAR(info -> OutputFormat))
return output + sizeof(cmsFloat64Number);
else
return output + nChan * sizeof(cmsFloat64Number);
}
static
cmsUInt8Number* PackLabFloatFromFloat(_cmsTRANSFORM* Info,
cmsFloat32Number wOut[],
cmsUInt8Number* output,
cmsUInt32Number Stride)
{
cmsFloat32Number* Out = (cmsFloat32Number*) output;
if (T_PLANAR(Info -> OutputFormat)) {
Out[0] = (cmsFloat32Number) (wOut[0] * 100.0);
Out[Stride] = (cmsFloat32Number) (wOut[1] * 255.0 - 128.0);
Out[Stride*2] = (cmsFloat32Number) (wOut[2] * 255.0 - 128.0);
return output + sizeof(cmsFloat32Number);
}
else {
Out[0] = (cmsFloat32Number) (wOut[0] * 100.0);
Out[1] = (cmsFloat32Number) (wOut[1] * 255.0 - 128.0);
Out[2] = (cmsFloat32Number) (wOut[2] * 255.0 - 128.0);
return output + (sizeof(cmsFloat32Number)*3 + T_EXTRA(Info ->OutputFormat) * sizeof(cmsFloat32Number));
}
}
static
cmsUInt8Number* PackLabDoubleFromFloat(_cmsTRANSFORM* Info,
cmsFloat32Number wOut[],
cmsUInt8Number* output,
cmsUInt32Number Stride)
{
cmsFloat64Number* Out = (cmsFloat64Number*) output;
if (T_PLANAR(Info -> OutputFormat)) {
Out[0] = (cmsFloat64Number) (wOut[0] * 100.0);
Out[Stride] = (cmsFloat64Number) (wOut[1] * 255.0 - 128.0);
Out[Stride*2] = (cmsFloat64Number) (wOut[2] * 255.0 - 128.0);
return output + sizeof(cmsFloat64Number);
}
else {
Out[0] = (cmsFloat64Number) (wOut[0] * 100.0);
Out[1] = (cmsFloat64Number) (wOut[1] * 255.0 - 128.0);
Out[2] = (cmsFloat64Number) (wOut[2] * 255.0 - 128.0);
return output + (sizeof(cmsFloat64Number)*3 + T_EXTRA(Info ->OutputFormat) * sizeof(cmsFloat64Number));
}
}
// From 0..1 range to 0..MAX_ENCODEABLE_XYZ
static
cmsUInt8Number* PackXYZFloatFromFloat(_cmsTRANSFORM* Info,
cmsFloat32Number wOut[],
cmsUInt8Number* output,
cmsUInt32Number Stride)
{
cmsFloat32Number* Out = (cmsFloat32Number*) output;
if (T_PLANAR(Info -> OutputFormat)) {
Out[0] = (cmsFloat32Number) (wOut[0] * MAX_ENCODEABLE_XYZ);
Out[Stride] = (cmsFloat32Number) (wOut[1] * MAX_ENCODEABLE_XYZ);
Out[Stride*2] = (cmsFloat32Number) (wOut[2] * MAX_ENCODEABLE_XYZ);
return output + sizeof(cmsFloat32Number);
}
else {
Out[0] = (cmsFloat32Number) (wOut[0] * MAX_ENCODEABLE_XYZ);
Out[1] = (cmsFloat32Number) (wOut[1] * MAX_ENCODEABLE_XYZ);
Out[2] = (cmsFloat32Number) (wOut[2] * MAX_ENCODEABLE_XYZ);
return output + (sizeof(cmsFloat32Number)*3 + T_EXTRA(Info ->OutputFormat) * sizeof(cmsFloat32Number));
}
}
// Same, but convert to double
static
cmsUInt8Number* PackXYZDoubleFromFloat(_cmsTRANSFORM* Info,
cmsFloat32Number wOut[],
cmsUInt8Number* output,
cmsUInt32Number Stride)
{
cmsFloat64Number* Out = (cmsFloat64Number*) output;
if (T_PLANAR(Info -> OutputFormat)) {
Out[0] = (cmsFloat64Number) (wOut[0] * MAX_ENCODEABLE_XYZ);
Out[Stride] = (cmsFloat64Number) (wOut[1] * MAX_ENCODEABLE_XYZ);
Out[Stride*2] = (cmsFloat64Number) (wOut[2] * MAX_ENCODEABLE_XYZ);
return output + sizeof(cmsFloat64Number);
}
else {
Out[0] = (cmsFloat64Number) (wOut[0] * MAX_ENCODEABLE_XYZ);
Out[1] = (cmsFloat64Number) (wOut[1] * MAX_ENCODEABLE_XYZ);
Out[2] = (cmsFloat64Number) (wOut[2] * MAX_ENCODEABLE_XYZ);
return output + (sizeof(cmsFloat64Number)*3 + T_EXTRA(Info ->OutputFormat) * sizeof(cmsFloat64Number));
}
}
// ----------------------------------------------------------------------------------------------------------------
#ifndef CMS_NO_HALF_SUPPORT
// Decodes an stream of half floats to wIn[] described by input format
static
cmsUInt8Number* UnrollHalfTo16(register _cmsTRANSFORM* info,
register cmsUInt16Number wIn[],
register cmsUInt8Number* accum,
register cmsUInt32Number Stride)
{
int nChan = T_CHANNELS(info -> InputFormat);
int DoSwap = T_DOSWAP(info ->InputFormat);
int Reverse = T_FLAVOR(info ->InputFormat);
int SwapFirst = T_SWAPFIRST(info -> InputFormat);
int Extra = T_EXTRA(info -> InputFormat);
int ExtraFirst = DoSwap ^ SwapFirst;
int Planar = T_PLANAR(info -> InputFormat);
cmsFloat32Number v;
int i, start = 0;
cmsFloat32Number maximum = IsInkSpace(info ->InputFormat) ? 655.35F : 65535.0F;
if (ExtraFirst)
start = Extra;
for (i=0; i < nChan; i++) {
int index = DoSwap ? (nChan - i - 1) : i;
if (Planar)
v = _cmsHalf2Float ( ((cmsUInt16Number*) accum)[(i + start) * Stride] );
else
v = _cmsHalf2Float ( ((cmsUInt16Number*) accum)[i + start] ) ;
if (Reverse) v = maximum - v;
wIn[index] = _cmsQuickSaturateWord(v * maximum);
}
if (Extra == 0 && SwapFirst) {
cmsUInt16Number tmp = wIn[0];
memmove(&wIn[0], &wIn[1], (nChan-1) * sizeof(cmsUInt16Number));
wIn[nChan-1] = tmp;
}
if (T_PLANAR(info -> InputFormat))
return accum + sizeof(cmsUInt16Number);
else
return accum + (nChan + Extra) * sizeof(cmsUInt16Number);
}
// Decodes an stream of half floats to wIn[] described by input format
static
cmsUInt8Number* UnrollHalfToFloat(_cmsTRANSFORM* info,
cmsFloat32Number wIn[],
cmsUInt8Number* accum,
cmsUInt32Number Stride)
{
int nChan = T_CHANNELS(info -> InputFormat);
int DoSwap = T_DOSWAP(info ->InputFormat);
int Reverse = T_FLAVOR(info ->InputFormat);
int SwapFirst = T_SWAPFIRST(info -> InputFormat);
int Extra = T_EXTRA(info -> InputFormat);
int ExtraFirst = DoSwap ^ SwapFirst;
int Planar = T_PLANAR(info -> InputFormat);
cmsFloat32Number v;
int i, start = 0;
cmsFloat32Number maximum = IsInkSpace(info ->InputFormat) ? 100.0F : 1.0F;
if (ExtraFirst)
start = Extra;
for (i=0; i < nChan; i++) {
int index = DoSwap ? (nChan - i - 1) : i;
if (Planar)
v = _cmsHalf2Float ( ((cmsUInt16Number*) accum)[(i + start) * Stride] );
else
v = _cmsHalf2Float ( ((cmsUInt16Number*) accum)[i + start] ) ;
v /= maximum;
wIn[index] = Reverse ? 1 - v : v;
}
if (Extra == 0 && SwapFirst) {
cmsFloat32Number tmp = wIn[0];
memmove(&wIn[0], &wIn[1], (nChan-1) * sizeof(cmsFloat32Number));
wIn[nChan-1] = tmp;
}
if (T_PLANAR(info -> InputFormat))
return accum + sizeof(cmsUInt16Number);
else
return accum + (nChan + Extra) * sizeof(cmsUInt16Number);
}
static
cmsUInt8Number* PackHalfFrom16(register _cmsTRANSFORM* info,
register cmsUInt16Number wOut[],
register cmsUInt8Number* output,
register cmsUInt32Number Stride)
{
int nChan = T_CHANNELS(info -> OutputFormat);
int DoSwap = T_DOSWAP(info ->OutputFormat);
int Reverse = T_FLAVOR(info ->OutputFormat);
int Extra = T_EXTRA(info -> OutputFormat);
int SwapFirst = T_SWAPFIRST(info -> OutputFormat);
int Planar = T_PLANAR(info -> OutputFormat);
int ExtraFirst = DoSwap ^ SwapFirst;
cmsFloat32Number maximum = IsInkSpace(info ->OutputFormat) ? 655.35F : 65535.0F;
cmsFloat32Number v = 0;
cmsUInt16Number* swap1 = (cmsUInt16Number*) output;
int i, start = 0;
if (ExtraFirst)
start = Extra;
for (i=0; i < nChan; i++) {
int index = DoSwap ? (nChan - i - 1) : i;
v = (cmsFloat32Number) wOut[index] / maximum;
if (Reverse)
v = maximum - v;
if (Planar)
((cmsUInt16Number*) output)[(i + start ) * Stride]= _cmsFloat2Half(v);
else
((cmsUInt16Number*) output)[i + start] = _cmsFloat2Half(v);
}
if (!ExtraFirst) {
output += Extra * sizeof(cmsUInt16Number);
}
if (Extra == 0 && SwapFirst) {
memmove(swap1 + 1, swap1, (nChan-1)* sizeof(cmsUInt16Number));
*swap1 = _cmsFloat2Half(v);
}
if (T_PLANAR(info -> OutputFormat))
return output + sizeof(cmsUInt16Number);
else
return output + nChan * sizeof(cmsUInt16Number);
}
static
cmsUInt8Number* PackHalfFromFloat(_cmsTRANSFORM* info,
cmsFloat32Number wOut[],
cmsUInt8Number* output,
cmsUInt32Number Stride)
{
int nChan = T_CHANNELS(info -> OutputFormat);
int DoSwap = T_DOSWAP(info ->OutputFormat);
int Reverse = T_FLAVOR(info ->OutputFormat);
int Extra = T_EXTRA(info -> OutputFormat);
int SwapFirst = T_SWAPFIRST(info -> OutputFormat);
int Planar = T_PLANAR(info -> OutputFormat);
int ExtraFirst = DoSwap ^ SwapFirst;
cmsFloat32Number maximum = IsInkSpace(info ->OutputFormat) ? 100.0F : 1.0F;
cmsUInt16Number* swap1 = (cmsUInt16Number*) output;
cmsFloat32Number v = 0;
int i, start = 0;
if (ExtraFirst)
start = Extra;
for (i=0; i < nChan; i++) {
int index = DoSwap ? (nChan - i - 1) : i;
v = wOut[index] * maximum;
if (Reverse)
v = maximum - v;
if (Planar)
((cmsUInt16Number*) output)[(i + start)* Stride]= _cmsFloat2Half( v );
else
((cmsUInt16Number*) output)[i + start] = _cmsFloat2Half( v );
}
if (!ExtraFirst) {
output += Extra * sizeof(cmsUInt16Number);
}
if (Extra == 0 && SwapFirst) {
memmove(swap1 + 1, swap1, (nChan-1)* sizeof(cmsUInt16Number));
*swap1 = (cmsUInt16Number) _cmsFloat2Half( v );
}
if (T_PLANAR(info -> OutputFormat))
return output + sizeof(cmsUInt16Number);
else
return output + nChan * sizeof(cmsUInt16Number);
}
#endif
// ----------------------------------------------------------------------------------------------------------------
static cmsFormatters16 InputFormatters16[] = {
// Type Mask Function
// ---------------------------- ------------------------------------ ----------------------------
{ TYPE_Lab_DBL, ANYPLANAR|ANYEXTRA, UnrollLabDoubleTo16},
{ TYPE_XYZ_DBL, ANYPLANAR|ANYEXTRA, UnrollXYZDoubleTo16},
{ TYPE_Lab_FLT, ANYPLANAR|ANYEXTRA, UnrollLabFloatTo16},
{ TYPE_GRAY_DBL, 0, UnrollDouble1Chan},
{ FLOAT_SH(1)|BYTES_SH(0), ANYCHANNELS|ANYPLANAR|ANYSWAPFIRST|ANYFLAVOR|
ANYSWAP|ANYEXTRA|ANYSPACE, UnrollDoubleTo16},
{ FLOAT_SH(1)|BYTES_SH(4), ANYCHANNELS|ANYPLANAR|ANYSWAPFIRST|ANYFLAVOR|
ANYSWAP|ANYEXTRA|ANYSPACE, UnrollFloatTo16},
#ifndef CMS_NO_HALF_SUPPORT
{ FLOAT_SH(1)|BYTES_SH(2), ANYCHANNELS|ANYPLANAR|ANYSWAPFIRST|ANYFLAVOR|
ANYEXTRA|ANYSWAP|ANYSPACE, UnrollHalfTo16},
#endif
{ CHANNELS_SH(1)|BYTES_SH(1), ANYSPACE, Unroll1Byte},
{ CHANNELS_SH(1)|BYTES_SH(1)|EXTRA_SH(1), ANYSPACE, Unroll1ByteSkip1},
{ CHANNELS_SH(1)|BYTES_SH(1)|EXTRA_SH(2), ANYSPACE, Unroll1ByteSkip2},
{ CHANNELS_SH(1)|BYTES_SH(1)|FLAVOR_SH(1), ANYSPACE, Unroll1ByteReversed},
{ COLORSPACE_SH(PT_MCH2)|CHANNELS_SH(2)|BYTES_SH(1), 0, Unroll2Bytes},
{ TYPE_LabV2_8, 0, UnrollLabV2_8 },
{ TYPE_ALabV2_8, 0, UnrollALabV2_8 },
{ TYPE_LabV2_16, 0, UnrollLabV2_16 },
{ CHANNELS_SH(3)|BYTES_SH(1), ANYSPACE, Unroll3Bytes},
{ CHANNELS_SH(3)|BYTES_SH(1)|DOSWAP_SH(1), ANYSPACE, Unroll3BytesSwap},
{ CHANNELS_SH(3)|EXTRA_SH(1)|BYTES_SH(1)|DOSWAP_SH(1), ANYSPACE, Unroll3BytesSkip1Swap},
{ CHANNELS_SH(3)|EXTRA_SH(1)|BYTES_SH(1)|SWAPFIRST_SH(1), ANYSPACE, Unroll3BytesSkip1SwapFirst},
{ CHANNELS_SH(3)|EXTRA_SH(1)|BYTES_SH(1)|DOSWAP_SH(1)|SWAPFIRST_SH(1),
ANYSPACE, Unroll3BytesSkip1SwapSwapFirst},
{ CHANNELS_SH(4)|BYTES_SH(1), ANYSPACE, Unroll4Bytes},
{ CHANNELS_SH(4)|BYTES_SH(1)|FLAVOR_SH(1), ANYSPACE, Unroll4BytesReverse},
{ CHANNELS_SH(4)|BYTES_SH(1)|SWAPFIRST_SH(1), ANYSPACE, Unroll4BytesSwapFirst},
{ CHANNELS_SH(4)|BYTES_SH(1)|DOSWAP_SH(1), ANYSPACE, Unroll4BytesSwap},
{ CHANNELS_SH(4)|BYTES_SH(1)|DOSWAP_SH(1)|SWAPFIRST_SH(1), ANYSPACE, Unroll4BytesSwapSwapFirst},
{ BYTES_SH(1)|PLANAR_SH(1), ANYFLAVOR|ANYSWAPFIRST|
ANYSWAP|ANYEXTRA|ANYCHANNELS|ANYSPACE, UnrollPlanarBytes},
{ BYTES_SH(1), ANYFLAVOR|ANYSWAPFIRST|ANYSWAP|
ANYEXTRA|ANYCHANNELS|ANYSPACE, UnrollChunkyBytes},
{ CHANNELS_SH(1)|BYTES_SH(2), ANYSPACE, Unroll1Word},
{ CHANNELS_SH(1)|BYTES_SH(2)|FLAVOR_SH(1), ANYSPACE, Unroll1WordReversed},
{ CHANNELS_SH(1)|BYTES_SH(2)|EXTRA_SH(3), ANYSPACE, Unroll1WordSkip3},
{ CHANNELS_SH(2)|BYTES_SH(2), ANYSPACE, Unroll2Words},
{ CHANNELS_SH(3)|BYTES_SH(2), ANYSPACE, Unroll3Words},
{ CHANNELS_SH(4)|BYTES_SH(2), ANYSPACE, Unroll4Words},
{ CHANNELS_SH(3)|BYTES_SH(2)|DOSWAP_SH(1), ANYSPACE, Unroll3WordsSwap},
{ CHANNELS_SH(3)|BYTES_SH(2)|EXTRA_SH(1)|SWAPFIRST_SH(1), ANYSPACE, Unroll3WordsSkip1SwapFirst},
{ CHANNELS_SH(3)|BYTES_SH(2)|EXTRA_SH(1)|DOSWAP_SH(1), ANYSPACE, Unroll3WordsSkip1Swap},
{ CHANNELS_SH(4)|BYTES_SH(2)|FLAVOR_SH(1), ANYSPACE, Unroll4WordsReverse},
{ CHANNELS_SH(4)|BYTES_SH(2)|SWAPFIRST_SH(1), ANYSPACE, Unroll4WordsSwapFirst},
{ CHANNELS_SH(4)|BYTES_SH(2)|DOSWAP_SH(1), ANYSPACE, Unroll4WordsSwap},
{ CHANNELS_SH(4)|BYTES_SH(2)|DOSWAP_SH(1)|SWAPFIRST_SH(1), ANYSPACE, Unroll4WordsSwapSwapFirst},
{ BYTES_SH(2)|PLANAR_SH(1), ANYFLAVOR|ANYSWAP|ANYENDIAN|ANYEXTRA|ANYCHANNELS|ANYSPACE, UnrollPlanarWords},
{ BYTES_SH(2), ANYFLAVOR|ANYSWAPFIRST|ANYSWAP|ANYENDIAN|ANYEXTRA|ANYCHANNELS|ANYSPACE, UnrollAnyWords},
};
static cmsFormattersFloat InputFormattersFloat[] = {
// Type Mask Function
// ---------------------------- ------------------------------------ ----------------------------
{ TYPE_Lab_DBL, ANYPLANAR|ANYEXTRA, UnrollLabDoubleToFloat},
{ TYPE_Lab_FLT, ANYPLANAR|ANYEXTRA, UnrollLabFloatToFloat},
{ TYPE_XYZ_DBL, ANYPLANAR|ANYEXTRA, UnrollXYZDoubleToFloat},
{ TYPE_XYZ_FLT, ANYPLANAR|ANYEXTRA, UnrollXYZFloatToFloat},
{ FLOAT_SH(1)|BYTES_SH(4), ANYPLANAR|ANYSWAPFIRST|ANYSWAP|ANYEXTRA|
ANYCHANNELS|ANYSPACE, UnrollFloatsToFloat},
{ FLOAT_SH(1)|BYTES_SH(0), ANYPLANAR|ANYSWAPFIRST|ANYSWAP|ANYEXTRA|
ANYCHANNELS|ANYSPACE, UnrollDoublesToFloat},
#ifndef CMS_NO_HALF_SUPPORT
{ FLOAT_SH(1)|BYTES_SH(2), ANYPLANAR|ANYSWAPFIRST|ANYSWAP|ANYEXTRA|
ANYCHANNELS|ANYSPACE, UnrollHalfToFloat},
#endif
};
// Bit fields set to one in the mask are not compared
static
cmsFormatter _cmsGetStockInputFormatter(cmsUInt32Number dwInput, cmsUInt32Number dwFlags)
{
cmsUInt32Number i;
cmsFormatter fr;
switch (dwFlags) {
case CMS_PACK_FLAGS_16BITS: {
for (i=0; i < sizeof(InputFormatters16) / sizeof(cmsFormatters16); i++) {
cmsFormatters16* f = InputFormatters16 + i;
if ((dwInput & ~f ->Mask) == f ->Type) {
fr.Fmt16 = f ->Frm;
return fr;
}
}
}
break;
case CMS_PACK_FLAGS_FLOAT: {
for (i=0; i < sizeof(InputFormattersFloat) / sizeof(cmsFormattersFloat); i++) {
cmsFormattersFloat* f = InputFormattersFloat + i;
if ((dwInput & ~f ->Mask) == f ->Type) {
fr.FmtFloat = f ->Frm;
return fr;
}
}
}
break;
default:;
}
fr.Fmt16 = NULL;
return fr;
}
static cmsFormatters16 OutputFormatters16[] = {
// Type Mask Function
// ---------------------------- ------------------------------------ ----------------------------
{ TYPE_Lab_DBL, ANYPLANAR|ANYEXTRA, PackLabDoubleFrom16},
{ TYPE_XYZ_DBL, ANYPLANAR|ANYEXTRA, PackXYZDoubleFrom16},
{ TYPE_Lab_FLT, ANYPLANAR|ANYEXTRA, PackLabFloatFrom16},
{ FLOAT_SH(1)|BYTES_SH(0), ANYFLAVOR|ANYSWAPFIRST|ANYSWAP|
ANYCHANNELS|ANYPLANAR|ANYEXTRA|ANYSPACE, PackDoubleFrom16},
{ FLOAT_SH(1)|BYTES_SH(4), ANYFLAVOR|ANYSWAPFIRST|ANYSWAP|
ANYCHANNELS|ANYPLANAR|ANYEXTRA|ANYSPACE, PackFloatFrom16},
#ifndef CMS_NO_HALF_SUPPORT
{ FLOAT_SH(1)|BYTES_SH(2), ANYFLAVOR|ANYSWAPFIRST|ANYSWAP|
ANYCHANNELS|ANYPLANAR|ANYEXTRA|ANYSPACE, PackHalfFrom16},
#endif
{ CHANNELS_SH(1)|BYTES_SH(1), ANYSPACE, Pack1Byte},
{ CHANNELS_SH(1)|BYTES_SH(1)|EXTRA_SH(1), ANYSPACE, Pack1ByteSkip1},
{ CHANNELS_SH(1)|BYTES_SH(1)|EXTRA_SH(1)|SWAPFIRST_SH(1), ANYSPACE, Pack1ByteSkip1SwapFirst},
{ CHANNELS_SH(1)|BYTES_SH(1)|FLAVOR_SH(1), ANYSPACE, Pack1ByteReversed},
{ TYPE_LabV2_8, 0, PackLabV2_8 },
{ TYPE_ALabV2_8, 0, PackALabV2_8 },
{ TYPE_LabV2_16, 0, PackLabV2_16 },
{ CHANNELS_SH(3)|BYTES_SH(1)|OPTIMIZED_SH(1), ANYSPACE, Pack3BytesOptimized},
{ CHANNELS_SH(3)|BYTES_SH(1)|EXTRA_SH(1)|OPTIMIZED_SH(1), ANYSPACE, Pack3BytesAndSkip1Optimized},
{ CHANNELS_SH(3)|BYTES_SH(1)|EXTRA_SH(1)|SWAPFIRST_SH(1)|OPTIMIZED_SH(1),
ANYSPACE, Pack3BytesAndSkip1SwapFirstOptimized},
{ CHANNELS_SH(3)|BYTES_SH(1)|EXTRA_SH(1)|DOSWAP_SH(1)|SWAPFIRST_SH(1)|OPTIMIZED_SH(1),
ANYSPACE, Pack3BytesAndSkip1SwapSwapFirstOptimized},
{ CHANNELS_SH(3)|BYTES_SH(1)|DOSWAP_SH(1)|EXTRA_SH(1)|OPTIMIZED_SH(1),
ANYSPACE, Pack3BytesAndSkip1SwapOptimized},
{ CHANNELS_SH(3)|BYTES_SH(1)|DOSWAP_SH(1)|OPTIMIZED_SH(1), ANYSPACE, Pack3BytesSwapOptimized},
{ CHANNELS_SH(3)|BYTES_SH(1), ANYSPACE, Pack3Bytes},
{ CHANNELS_SH(3)|BYTES_SH(1)|EXTRA_SH(1), ANYSPACE, Pack3BytesAndSkip1},
{ CHANNELS_SH(3)|BYTES_SH(1)|EXTRA_SH(1)|SWAPFIRST_SH(1), ANYSPACE, Pack3BytesAndSkip1SwapFirst},
{ CHANNELS_SH(3)|BYTES_SH(1)|EXTRA_SH(1)|DOSWAP_SH(1)|SWAPFIRST_SH(1),
ANYSPACE, Pack3BytesAndSkip1SwapSwapFirst},
{ CHANNELS_SH(3)|BYTES_SH(1)|DOSWAP_SH(1)|EXTRA_SH(1), ANYSPACE, Pack3BytesAndSkip1Swap},
{ CHANNELS_SH(3)|BYTES_SH(1)|DOSWAP_SH(1), ANYSPACE, Pack3BytesSwap},
{ CHANNELS_SH(6)|BYTES_SH(1), ANYSPACE, Pack6Bytes},
{ CHANNELS_SH(6)|BYTES_SH(1)|DOSWAP_SH(1), ANYSPACE, Pack6BytesSwap},
{ CHANNELS_SH(4)|BYTES_SH(1), ANYSPACE, Pack4Bytes},
{ CHANNELS_SH(4)|BYTES_SH(1)|FLAVOR_SH(1), ANYSPACE, Pack4BytesReverse},
{ CHANNELS_SH(4)|BYTES_SH(1)|SWAPFIRST_SH(1), ANYSPACE, Pack4BytesSwapFirst},
{ CHANNELS_SH(4)|BYTES_SH(1)|DOSWAP_SH(1), ANYSPACE, Pack4BytesSwap},
{ CHANNELS_SH(4)|BYTES_SH(1)|DOSWAP_SH(1)|SWAPFIRST_SH(1), ANYSPACE, Pack4BytesSwapSwapFirst},
{ BYTES_SH(1), ANYFLAVOR|ANYSWAPFIRST|ANYSWAP|ANYEXTRA|ANYCHANNELS|ANYSPACE, PackAnyBytes},
{ BYTES_SH(1)|PLANAR_SH(1), ANYFLAVOR|ANYSWAPFIRST|ANYSWAP|ANYEXTRA|ANYCHANNELS|ANYSPACE, PackPlanarBytes},
{ CHANNELS_SH(1)|BYTES_SH(2), ANYSPACE, Pack1Word},
{ CHANNELS_SH(1)|BYTES_SH(2)|EXTRA_SH(1), ANYSPACE, Pack1WordSkip1},
{ CHANNELS_SH(1)|BYTES_SH(2)|EXTRA_SH(1)|SWAPFIRST_SH(1), ANYSPACE, Pack1WordSkip1SwapFirst},
{ CHANNELS_SH(1)|BYTES_SH(2)|FLAVOR_SH(1), ANYSPACE, Pack1WordReversed},
{ CHANNELS_SH(1)|BYTES_SH(2)|ENDIAN16_SH(1), ANYSPACE, Pack1WordBigEndian},
{ CHANNELS_SH(3)|BYTES_SH(2), ANYSPACE, Pack3Words},
{ CHANNELS_SH(3)|BYTES_SH(2)|DOSWAP_SH(1), ANYSPACE, Pack3WordsSwap},
{ CHANNELS_SH(3)|BYTES_SH(2)|ENDIAN16_SH(1), ANYSPACE, Pack3WordsBigEndian},
{ CHANNELS_SH(3)|BYTES_SH(2)|EXTRA_SH(1), ANYSPACE, Pack3WordsAndSkip1},
{ CHANNELS_SH(3)|BYTES_SH(2)|EXTRA_SH(1)|DOSWAP_SH(1), ANYSPACE, Pack3WordsAndSkip1Swap},
{ CHANNELS_SH(3)|BYTES_SH(2)|EXTRA_SH(1)|SWAPFIRST_SH(1), ANYSPACE, Pack3WordsAndSkip1SwapFirst},
{ CHANNELS_SH(3)|BYTES_SH(2)|EXTRA_SH(1)|DOSWAP_SH(1)|SWAPFIRST_SH(1),
ANYSPACE, Pack3WordsAndSkip1SwapSwapFirst},
{ CHANNELS_SH(4)|BYTES_SH(2), ANYSPACE, Pack4Words},
{ CHANNELS_SH(4)|BYTES_SH(2)|FLAVOR_SH(1), ANYSPACE, Pack4WordsReverse},
{ CHANNELS_SH(4)|BYTES_SH(2)|DOSWAP_SH(1), ANYSPACE, Pack4WordsSwap},
{ CHANNELS_SH(4)|BYTES_SH(2)|ENDIAN16_SH(1), ANYSPACE, Pack4WordsBigEndian},
{ CHANNELS_SH(6)|BYTES_SH(2), ANYSPACE, Pack6Words},
{ CHANNELS_SH(6)|BYTES_SH(2)|DOSWAP_SH(1), ANYSPACE, Pack6WordsSwap},
{ BYTES_SH(2)|PLANAR_SH(1), ANYFLAVOR|ANYENDIAN|ANYSWAP|ANYEXTRA|ANYCHANNELS|ANYSPACE, PackPlanarWords},
{ BYTES_SH(2), ANYFLAVOR|ANYSWAPFIRST|ANYSWAP|ANYENDIAN|ANYEXTRA|ANYCHANNELS|ANYSPACE, PackAnyWords}
};
static cmsFormattersFloat OutputFormattersFloat[] = {
// Type Mask Function
// ---------------------------- --------------------------------------------------- ----------------------------
{ TYPE_Lab_FLT, ANYPLANAR|ANYEXTRA, PackLabFloatFromFloat},
{ TYPE_XYZ_FLT, ANYPLANAR|ANYEXTRA, PackXYZFloatFromFloat},
{ TYPE_Lab_DBL, ANYPLANAR|ANYEXTRA, PackLabDoubleFromFloat},
{ TYPE_XYZ_DBL, ANYPLANAR|ANYEXTRA, PackXYZDoubleFromFloat},
{ FLOAT_SH(1)|BYTES_SH(4), ANYPLANAR|
ANYFLAVOR|ANYSWAPFIRST|ANYSWAP|ANYEXTRA|ANYCHANNELS|ANYSPACE, PackFloatsFromFloat },
{ FLOAT_SH(1)|BYTES_SH(0), ANYPLANAR|
ANYFLAVOR|ANYSWAPFIRST|ANYSWAP|ANYEXTRA|ANYCHANNELS|ANYSPACE, PackDoublesFromFloat },
#ifndef CMS_NO_HALF_SUPPORT
{ FLOAT_SH(1)|BYTES_SH(2),
ANYFLAVOR|ANYSWAPFIRST|ANYSWAP|ANYEXTRA|ANYCHANNELS|ANYSPACE, PackHalfFromFloat },
#endif
};
// Bit fields set to one in the mask are not compared
static
cmsFormatter _cmsGetStockOutputFormatter(cmsUInt32Number dwInput, cmsUInt32Number dwFlags)
{
cmsUInt32Number i;
cmsFormatter fr;
switch (dwFlags)
{
case CMS_PACK_FLAGS_16BITS: {
for (i=0; i < sizeof(OutputFormatters16) / sizeof(cmsFormatters16); i++) {
cmsFormatters16* f = OutputFormatters16 + i;
if ((dwInput & ~f ->Mask) == f ->Type) {
fr.Fmt16 = f ->Frm;
return fr;
}
}
}
break;
case CMS_PACK_FLAGS_FLOAT: {
for (i=0; i < sizeof(OutputFormattersFloat) / sizeof(cmsFormattersFloat); i++) {
cmsFormattersFloat* f = OutputFormattersFloat + i;
if ((dwInput & ~f ->Mask) == f ->Type) {
fr.FmtFloat = f ->Frm;
return fr;
}
}
}
break;
default:;
}
fr.Fmt16 = NULL;
return fr;
}
typedef struct _cms_formatters_factory_list {
cmsFormatterFactory Factory;
struct _cms_formatters_factory_list *Next;
} cmsFormattersFactoryList;
static cmsFormattersFactoryList* FactoryList = NULL;
// Formatters management
cmsBool _cmsRegisterFormattersPlugin(cmsContext id, cmsPluginBase* Data)
{
cmsPluginFormatters* Plugin = (cmsPluginFormatters*) Data;
cmsFormattersFactoryList* fl ;
// Reset
if (Data == NULL) {
FactoryList = NULL;
return TRUE;
}
fl = (cmsFormattersFactoryList*) _cmsPluginMalloc(id, sizeof(cmsFormattersFactoryList));
if (fl == NULL) return FALSE;
fl ->Factory = Plugin ->FormattersFactory;
fl ->Next = FactoryList;
FactoryList = fl;
return TRUE;
}
cmsFormatter _cmsGetFormatter(cmsUInt32Number Type, // Specific type, i.e. TYPE_RGB_8
cmsFormatterDirection Dir,
cmsUInt32Number dwFlags)
{
cmsFormattersFactoryList* f;
for (f = FactoryList; f != NULL; f = f ->Next) {
cmsFormatter fn = f ->Factory(Type, Dir, dwFlags);
if (fn.Fmt16 != NULL) return fn;
}
// Revert to default
if (Dir == cmsFormatterInput)
return _cmsGetStockInputFormatter(Type, dwFlags);
else
return _cmsGetStockOutputFormatter(Type, dwFlags);
}
// Return whatever given formatter refers to float values
cmsBool _cmsFormatterIsFloat(cmsUInt32Number Type)
{
return T_FLOAT(Type) ? TRUE : FALSE;
}
// Return whatever given formatter refers to 8 bits
cmsBool _cmsFormatterIs8bit(cmsUInt32Number Type)
{
int Bytes = T_BYTES(Type);
return (Bytes == 1);
}
// Build a suitable formatter for the colorspace of this profile
cmsUInt32Number CMSEXPORT cmsFormatterForColorspaceOfProfile(cmsHPROFILE hProfile, cmsUInt32Number nBytes, cmsBool lIsFloat)
{
cmsColorSpaceSignature ColorSpace = cmsGetColorSpace(hProfile);
cmsUInt32Number ColorSpaceBits = _cmsLCMScolorSpace(ColorSpace);
cmsUInt32Number nOutputChans = cmsChannelsOf(ColorSpace);
cmsUInt32Number Float = lIsFloat ? 1 : 0;
// Create a fake formatter for result
return FLOAT_SH(Float) | COLORSPACE_SH(ColorSpaceBits) | BYTES_SH(nBytes) | CHANNELS_SH(nOutputChans);
}
// Build a suitable formatter for the colorspace of this profile
cmsUInt32Number CMSEXPORT cmsFormatterForPCSOfProfile(cmsHPROFILE hProfile, cmsUInt32Number nBytes, cmsBool lIsFloat)
{
cmsColorSpaceSignature ColorSpace = cmsGetPCS(hProfile);
int ColorSpaceBits = _cmsLCMScolorSpace(ColorSpace);
cmsUInt32Number nOutputChans = cmsChannelsOf(ColorSpace);
cmsUInt32Number Float = lIsFloat ? 1 : 0;
// Create a fake formatter for result
return FLOAT_SH(Float) | COLORSPACE_SH(ColorSpaceBits) | BYTES_SH(nBytes) | CHANNELS_SH(nOutputChans);
}
|
56 | ./little-cms/src/cmsintrp.c | //---------------------------------------------------------------------------------
//
// Little Color Management System
// Copyright (c) 1998-2012 Marti Maria Saguer
//
// Permission is hereby granted, free of charge, to any person obtaining
// a copy of this software and associated documentation files (the "Software"),
// to deal in the Software without restriction, including without limitation
// the rights to use, copy, modify, merge, publish, distribute, sublicense,
// and/or sell copies of the Software, and to permit persons to whom the Software
// is furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO
// THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
// LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
// OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
// WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
//
//---------------------------------------------------------------------------------
//
#include "lcms2_internal.h"
// This module incorporates several interpolation routines, for 1 to 8 channels on input and
// up to 65535 channels on output. The user may change those by using the interpolation plug-in
// Interpolation routines by default
static cmsInterpFunction DefaultInterpolatorsFactory(cmsUInt32Number nInputChannels, cmsUInt32Number nOutputChannels, cmsUInt32Number dwFlags);
// This is the default factory
static cmsInterpFnFactory Interpolators = DefaultInterpolatorsFactory;
// Main plug-in entry
cmsBool _cmsRegisterInterpPlugin(cmsPluginBase* Data)
{
cmsPluginInterpolation* Plugin = (cmsPluginInterpolation*) Data;
if (Data == NULL) {
Interpolators = DefaultInterpolatorsFactory;
return TRUE;
}
// Set replacement functions
Interpolators = Plugin ->InterpolatorsFactory;
return TRUE;
}
// Set the interpolation method
cmsBool _cmsSetInterpolationRoutine(cmsInterpParams* p)
{
// Invoke factory, possibly in the Plug-in
p ->Interpolation = Interpolators(p -> nInputs, p ->nOutputs, p ->dwFlags);
// If unsupported by the plug-in, go for the LittleCMS default.
// If happens only if an extern plug-in is being used
if (p ->Interpolation.Lerp16 == NULL)
p ->Interpolation = DefaultInterpolatorsFactory(p ->nInputs, p ->nOutputs, p ->dwFlags);
// Check for valid interpolator (we just check one member of the union)
if (p ->Interpolation.Lerp16 == NULL) {
return FALSE;
}
return TRUE;
}
// This function precalculates as many parameters as possible to speed up the interpolation.
cmsInterpParams* _cmsComputeInterpParamsEx(cmsContext ContextID,
const cmsUInt32Number nSamples[],
int InputChan, int OutputChan,
const void *Table,
cmsUInt32Number dwFlags)
{
cmsInterpParams* p;
int i;
// Check for maximum inputs
if (InputChan > MAX_INPUT_DIMENSIONS) {
cmsSignalError(ContextID, cmsERROR_RANGE, "Too many input channels (%d channels, max=%d)", InputChan, MAX_INPUT_DIMENSIONS);
return NULL;
}
// Creates an empty object
p = (cmsInterpParams*) _cmsMallocZero(ContextID, sizeof(cmsInterpParams));
if (p == NULL) return NULL;
// Keep original parameters
p -> dwFlags = dwFlags;
p -> nInputs = InputChan;
p -> nOutputs = OutputChan;
p ->Table = Table;
p ->ContextID = ContextID;
// Fill samples per input direction and domain (which is number of nodes minus one)
for (i=0; i < InputChan; i++) {
p -> nSamples[i] = nSamples[i];
p -> Domain[i] = nSamples[i] - 1;
}
// Compute factors to apply to each component to index the grid array
p -> opta[0] = p -> nOutputs;
for (i=1; i < InputChan; i++)
p ->opta[i] = p ->opta[i-1] * nSamples[InputChan-i];
if (!_cmsSetInterpolationRoutine(p)) {
cmsSignalError(ContextID, cmsERROR_UNKNOWN_EXTENSION, "Unsupported interpolation (%d->%d channels)", InputChan, OutputChan);
_cmsFree(ContextID, p);
return NULL;
}
// All seems ok
return p;
}
// This one is a wrapper on the anterior, but assuming all directions have same number of nodes
cmsInterpParams* _cmsComputeInterpParams(cmsContext ContextID, int nSamples, int InputChan, int OutputChan, const void* Table, cmsUInt32Number dwFlags)
{
int i;
cmsUInt32Number Samples[MAX_INPUT_DIMENSIONS];
// Fill the auxiliar array
for (i=0; i < MAX_INPUT_DIMENSIONS; i++)
Samples[i] = nSamples;
// Call the extended function
return _cmsComputeInterpParamsEx(ContextID, Samples, InputChan, OutputChan, Table, dwFlags);
}
// Free all associated memory
void _cmsFreeInterpParams(cmsInterpParams* p)
{
if (p != NULL) _cmsFree(p ->ContextID, p);
}
// Inline fixed point interpolation
cmsINLINE cmsUInt16Number LinearInterp(cmsS15Fixed16Number a, cmsS15Fixed16Number l, cmsS15Fixed16Number h)
{
cmsUInt32Number dif = (cmsUInt32Number) (h - l) * a + 0x8000;
dif = (dif >> 16) + l;
return (cmsUInt16Number) (dif);
}
// Linear interpolation (Fixed-point optimized)
static
void LinLerp1D(register const cmsUInt16Number Value[],
register cmsUInt16Number Output[],
register const cmsInterpParams* p)
{
cmsUInt16Number y1, y0;
int cell0, rest;
int val3;
const cmsUInt16Number* LutTable = (cmsUInt16Number*) p ->Table;
// if last value...
if (Value[0] == 0xffff) {
Output[0] = LutTable[p -> Domain[0]];
return;
}
val3 = p -> Domain[0] * Value[0];
val3 = _cmsToFixedDomain(val3); // To fixed 15.16
cell0 = FIXED_TO_INT(val3); // Cell is 16 MSB bits
rest = FIXED_REST_TO_INT(val3); // Rest is 16 LSB bits
y0 = LutTable[cell0];
y1 = LutTable[cell0+1];
Output[0] = LinearInterp(rest, y0, y1);
}
// Floating-point version of 1D interpolation
static
void LinLerp1Dfloat(const cmsFloat32Number Value[],
cmsFloat32Number Output[],
const cmsInterpParams* p)
{
cmsFloat32Number y1, y0;
cmsFloat32Number val2, rest;
int cell0, cell1;
const cmsFloat32Number* LutTable = (cmsFloat32Number*) p ->Table;
// if last value...
if (Value[0] == 1.0) {
Output[0] = LutTable[p -> Domain[0]];
return;
}
val2 = p -> Domain[0] * Value[0];
cell0 = (int) floor(val2);
cell1 = (int) ceil(val2);
// Rest is 16 LSB bits
rest = val2 - cell0;
y0 = LutTable[cell0] ;
y1 = LutTable[cell1] ;
Output[0] = y0 + (y1 - y0) * rest;
}
// Eval gray LUT having only one input channel
static
void Eval1Input(register const cmsUInt16Number Input[],
register cmsUInt16Number Output[],
register const cmsInterpParams* p16)
{
cmsS15Fixed16Number fk;
cmsS15Fixed16Number k0, k1, rk, K0, K1;
int v;
cmsUInt32Number OutChan;
const cmsUInt16Number* LutTable = (cmsUInt16Number*) p16 -> Table;
v = Input[0] * p16 -> Domain[0];
fk = _cmsToFixedDomain(v);
k0 = FIXED_TO_INT(fk);
rk = (cmsUInt16Number) FIXED_REST_TO_INT(fk);
k1 = k0 + (Input[0] != 0xFFFFU ? 1 : 0);
K0 = p16 -> opta[0] * k0;
K1 = p16 -> opta[0] * k1;
for (OutChan=0; OutChan < p16->nOutputs; OutChan++) {
Output[OutChan] = LinearInterp(rk, LutTable[K0+OutChan], LutTable[K1+OutChan]);
}
}
// Eval gray LUT having only one input channel
static
void Eval1InputFloat(const cmsFloat32Number Value[],
cmsFloat32Number Output[],
const cmsInterpParams* p)
{
cmsFloat32Number y1, y0;
cmsFloat32Number val2, rest;
int cell0, cell1;
cmsUInt32Number OutChan;
const cmsFloat32Number* LutTable = (cmsFloat32Number*) p ->Table;
// if last value...
if (Value[0] == 1.0) {
Output[0] = LutTable[p -> Domain[0]];
return;
}
val2 = p -> Domain[0] * Value[0];
cell0 = (int) floor(val2);
cell1 = (int) ceil(val2);
// Rest is 16 LSB bits
rest = val2 - cell0;
cell0 *= p -> opta[0];
cell1 *= p -> opta[0];
for (OutChan=0; OutChan < p->nOutputs; OutChan++) {
y0 = LutTable[cell0 + OutChan] ;
y1 = LutTable[cell1 + OutChan] ;
Output[OutChan] = y0 + (y1 - y0) * rest;
}
}
// Bilinear interpolation (16 bits) - cmsFloat32Number version
static
void BilinearInterpFloat(const cmsFloat32Number Input[],
cmsFloat32Number Output[],
const cmsInterpParams* p)
{
# define LERP(a,l,h) (cmsFloat32Number) ((l)+(((h)-(l))*(a)))
# define DENS(i,j) (LutTable[(i)+(j)+OutChan])
const cmsFloat32Number* LutTable = (cmsFloat32Number*) p ->Table;
cmsFloat32Number px, py;
int x0, y0,
X0, Y0, X1, Y1;
int TotalOut, OutChan;
cmsFloat32Number fx, fy,
d00, d01, d10, d11,
dx0, dx1,
dxy;
TotalOut = p -> nOutputs;
px = Input[0] * p->Domain[0];
py = Input[1] * p->Domain[1];
x0 = (int) _cmsQuickFloor(px); fx = px - (cmsFloat32Number) x0;
y0 = (int) _cmsQuickFloor(py); fy = py - (cmsFloat32Number) y0;
X0 = p -> opta[1] * x0;
X1 = X0 + (Input[0] >= 1.0 ? 0 : p->opta[1]);
Y0 = p -> opta[0] * y0;
Y1 = Y0 + (Input[1] >= 1.0 ? 0 : p->opta[0]);
for (OutChan = 0; OutChan < TotalOut; OutChan++) {
d00 = DENS(X0, Y0);
d01 = DENS(X0, Y1);
d10 = DENS(X1, Y0);
d11 = DENS(X1, Y1);
dx0 = LERP(fx, d00, d10);
dx1 = LERP(fx, d01, d11);
dxy = LERP(fy, dx0, dx1);
Output[OutChan] = dxy;
}
# undef LERP
# undef DENS
}
// Bilinear interpolation (16 bits) - optimized version
static
void BilinearInterp16(register const cmsUInt16Number Input[],
register cmsUInt16Number Output[],
register const cmsInterpParams* p)
{
#define DENS(i,j) (LutTable[(i)+(j)+OutChan])
#define LERP(a,l,h) (cmsUInt16Number) (l + ROUND_FIXED_TO_INT(((h-l)*a)))
const cmsUInt16Number* LutTable = (cmsUInt16Number*) p ->Table;
int OutChan, TotalOut;
cmsS15Fixed16Number fx, fy;
register int rx, ry;
int x0, y0;
register int X0, X1, Y0, Y1;
int d00, d01, d10, d11,
dx0, dx1,
dxy;
TotalOut = p -> nOutputs;
fx = _cmsToFixedDomain((int) Input[0] * p -> Domain[0]);
x0 = FIXED_TO_INT(fx);
rx = FIXED_REST_TO_INT(fx); // Rest in 0..1.0 domain
fy = _cmsToFixedDomain((int) Input[1] * p -> Domain[1]);
y0 = FIXED_TO_INT(fy);
ry = FIXED_REST_TO_INT(fy);
X0 = p -> opta[1] * x0;
X1 = X0 + (Input[0] == 0xFFFFU ? 0 : p->opta[1]);
Y0 = p -> opta[0] * y0;
Y1 = Y0 + (Input[1] == 0xFFFFU ? 0 : p->opta[0]);
for (OutChan = 0; OutChan < TotalOut; OutChan++) {
d00 = DENS(X0, Y0);
d01 = DENS(X0, Y1);
d10 = DENS(X1, Y0);
d11 = DENS(X1, Y1);
dx0 = LERP(rx, d00, d10);
dx1 = LERP(rx, d01, d11);
dxy = LERP(ry, dx0, dx1);
Output[OutChan] = (cmsUInt16Number) dxy;
}
# undef LERP
# undef DENS
}
// Trilinear interpolation (16 bits) - cmsFloat32Number version
static
void TrilinearInterpFloat(const cmsFloat32Number Input[],
cmsFloat32Number Output[],
const cmsInterpParams* p)
{
# define LERP(a,l,h) (cmsFloat32Number) ((l)+(((h)-(l))*(a)))
# define DENS(i,j,k) (LutTable[(i)+(j)+(k)+OutChan])
const cmsFloat32Number* LutTable = (cmsFloat32Number*) p ->Table;
cmsFloat32Number px, py, pz;
int x0, y0, z0,
X0, Y0, Z0, X1, Y1, Z1;
int TotalOut, OutChan;
cmsFloat32Number fx, fy, fz,
d000, d001, d010, d011,
d100, d101, d110, d111,
dx00, dx01, dx10, dx11,
dxy0, dxy1, dxyz;
TotalOut = p -> nOutputs;
// We need some clipping here
px = Input[0];
py = Input[1];
pz = Input[2];
if (px < 0) px = 0;
if (px > 1) px = 1;
if (py < 0) py = 0;
if (py > 1) py = 1;
if (pz < 0) pz = 0;
if (pz > 1) pz = 1;
px *= p->Domain[0];
py *= p->Domain[1];
pz *= p->Domain[2];
x0 = (int) _cmsQuickFloor(px); fx = px - (cmsFloat32Number) x0;
y0 = (int) _cmsQuickFloor(py); fy = py - (cmsFloat32Number) y0;
z0 = (int) _cmsQuickFloor(pz); fz = pz - (cmsFloat32Number) z0;
X0 = p -> opta[2] * x0;
X1 = X0 + (Input[0] >= 1.0 ? 0 : p->opta[2]);
Y0 = p -> opta[1] * y0;
Y1 = Y0 + (Input[1] >= 1.0 ? 0 : p->opta[1]);
Z0 = p -> opta[0] * z0;
Z1 = Z0 + (Input[2] >= 1.0 ? 0 : p->opta[0]);
for (OutChan = 0; OutChan < TotalOut; OutChan++) {
d000 = DENS(X0, Y0, Z0);
d001 = DENS(X0, Y0, Z1);
d010 = DENS(X0, Y1, Z0);
d011 = DENS(X0, Y1, Z1);
d100 = DENS(X1, Y0, Z0);
d101 = DENS(X1, Y0, Z1);
d110 = DENS(X1, Y1, Z0);
d111 = DENS(X1, Y1, Z1);
dx00 = LERP(fx, d000, d100);
dx01 = LERP(fx, d001, d101);
dx10 = LERP(fx, d010, d110);
dx11 = LERP(fx, d011, d111);
dxy0 = LERP(fy, dx00, dx10);
dxy1 = LERP(fy, dx01, dx11);
dxyz = LERP(fz, dxy0, dxy1);
Output[OutChan] = dxyz;
}
# undef LERP
# undef DENS
}
// Trilinear interpolation (16 bits) - optimized version
static
void TrilinearInterp16(register const cmsUInt16Number Input[],
register cmsUInt16Number Output[],
register const cmsInterpParams* p)
{
#define DENS(i,j,k) (LutTable[(i)+(j)+(k)+OutChan])
#define LERP(a,l,h) (cmsUInt16Number) (l + ROUND_FIXED_TO_INT(((h-l)*a)))
const cmsUInt16Number* LutTable = (cmsUInt16Number*) p ->Table;
int OutChan, TotalOut;
cmsS15Fixed16Number fx, fy, fz;
register int rx, ry, rz;
int x0, y0, z0;
register int X0, X1, Y0, Y1, Z0, Z1;
int d000, d001, d010, d011,
d100, d101, d110, d111,
dx00, dx01, dx10, dx11,
dxy0, dxy1, dxyz;
TotalOut = p -> nOutputs;
fx = _cmsToFixedDomain((int) Input[0] * p -> Domain[0]);
x0 = FIXED_TO_INT(fx);
rx = FIXED_REST_TO_INT(fx); // Rest in 0..1.0 domain
fy = _cmsToFixedDomain((int) Input[1] * p -> Domain[1]);
y0 = FIXED_TO_INT(fy);
ry = FIXED_REST_TO_INT(fy);
fz = _cmsToFixedDomain((int) Input[2] * p -> Domain[2]);
z0 = FIXED_TO_INT(fz);
rz = FIXED_REST_TO_INT(fz);
X0 = p -> opta[2] * x0;
X1 = X0 + (Input[0] == 0xFFFFU ? 0 : p->opta[2]);
Y0 = p -> opta[1] * y0;
Y1 = Y0 + (Input[1] == 0xFFFFU ? 0 : p->opta[1]);
Z0 = p -> opta[0] * z0;
Z1 = Z0 + (Input[2] == 0xFFFFU ? 0 : p->opta[0]);
for (OutChan = 0; OutChan < TotalOut; OutChan++) {
d000 = DENS(X0, Y0, Z0);
d001 = DENS(X0, Y0, Z1);
d010 = DENS(X0, Y1, Z0);
d011 = DENS(X0, Y1, Z1);
d100 = DENS(X1, Y0, Z0);
d101 = DENS(X1, Y0, Z1);
d110 = DENS(X1, Y1, Z0);
d111 = DENS(X1, Y1, Z1);
dx00 = LERP(rx, d000, d100);
dx01 = LERP(rx, d001, d101);
dx10 = LERP(rx, d010, d110);
dx11 = LERP(rx, d011, d111);
dxy0 = LERP(ry, dx00, dx10);
dxy1 = LERP(ry, dx01, dx11);
dxyz = LERP(rz, dxy0, dxy1);
Output[OutChan] = (cmsUInt16Number) dxyz;
}
# undef LERP
# undef DENS
}
// Tetrahedral interpolation, using Sakamoto algorithm.
#define DENS(i,j,k) (LutTable[(i)+(j)+(k)+OutChan])
static
void TetrahedralInterpFloat(const cmsFloat32Number Input[],
cmsFloat32Number Output[],
const cmsInterpParams* p)
{
const cmsFloat32Number* LutTable = (cmsFloat32Number*) p -> Table;
cmsFloat32Number px, py, pz;
int x0, y0, z0,
X0, Y0, Z0, X1, Y1, Z1;
cmsFloat32Number rx, ry, rz;
cmsFloat32Number c0, c1=0, c2=0, c3=0;
int OutChan, TotalOut;
TotalOut = p -> nOutputs;
// We need some clipping here
px = Input[0];
py = Input[1];
pz = Input[2];
if (px < 0) px = 0;
if (px > 1) px = 1;
if (py < 0) py = 0;
if (py > 1) py = 1;
if (pz < 0) pz = 0;
if (pz > 1) pz = 1;
px *= p->Domain[0];
py *= p->Domain[1];
pz *= p->Domain[2];
x0 = (int) _cmsQuickFloor(px); rx = (px - (cmsFloat32Number) x0);
y0 = (int) _cmsQuickFloor(py); ry = (py - (cmsFloat32Number) y0);
z0 = (int) _cmsQuickFloor(pz); rz = (pz - (cmsFloat32Number) z0);
X0 = p -> opta[2] * x0;
X1 = X0 + (Input[0] >= 1.0 ? 0 : p->opta[2]);
Y0 = p -> opta[1] * y0;
Y1 = Y0 + (Input[1] >= 1.0 ? 0 : p->opta[1]);
Z0 = p -> opta[0] * z0;
Z1 = Z0 + (Input[2] >= 1.0 ? 0 : p->opta[0]);
for (OutChan=0; OutChan < TotalOut; OutChan++) {
// These are the 6 Tetrahedral
c0 = DENS(X0, Y0, Z0);
if (rx >= ry && ry >= rz) {
c1 = DENS(X1, Y0, Z0) - c0;
c2 = DENS(X1, Y1, Z0) - DENS(X1, Y0, Z0);
c3 = DENS(X1, Y1, Z1) - DENS(X1, Y1, Z0);
}
else
if (rx >= rz && rz >= ry) {
c1 = DENS(X1, Y0, Z0) - c0;
c2 = DENS(X1, Y1, Z1) - DENS(X1, Y0, Z1);
c3 = DENS(X1, Y0, Z1) - DENS(X1, Y0, Z0);
}
else
if (rz >= rx && rx >= ry) {
c1 = DENS(X1, Y0, Z1) - DENS(X0, Y0, Z1);
c2 = DENS(X1, Y1, Z1) - DENS(X1, Y0, Z1);
c3 = DENS(X0, Y0, Z1) - c0;
}
else
if (ry >= rx && rx >= rz) {
c1 = DENS(X1, Y1, Z0) - DENS(X0, Y1, Z0);
c2 = DENS(X0, Y1, Z0) - c0;
c3 = DENS(X1, Y1, Z1) - DENS(X1, Y1, Z0);
}
else
if (ry >= rz && rz >= rx) {
c1 = DENS(X1, Y1, Z1) - DENS(X0, Y1, Z1);
c2 = DENS(X0, Y1, Z0) - c0;
c3 = DENS(X0, Y1, Z1) - DENS(X0, Y1, Z0);
}
else
if (rz >= ry && ry >= rx) {
c1 = DENS(X1, Y1, Z1) - DENS(X0, Y1, Z1);
c2 = DENS(X0, Y1, Z1) - DENS(X0, Y0, Z1);
c3 = DENS(X0, Y0, Z1) - c0;
}
else {
c1 = c2 = c3 = 0;
}
Output[OutChan] = c0 + c1 * rx + c2 * ry + c3 * rz;
}
}
#undef DENS
static
void TetrahedralInterp16(register const cmsUInt16Number Input[],
register cmsUInt16Number Output[],
register const cmsInterpParams* p)
{
const cmsUInt16Number* LutTable = (cmsUInt16Number*) p -> Table;
cmsS15Fixed16Number fx, fy, fz;
cmsS15Fixed16Number rx, ry, rz;
int x0, y0, z0;
cmsS15Fixed16Number c0, c1, c2, c3, Rest;
cmsS15Fixed16Number X0, X1, Y0, Y1, Z0, Z1;
cmsUInt32Number TotalOut = p -> nOutputs;
fx = _cmsToFixedDomain((int) Input[0] * p -> Domain[0]);
fy = _cmsToFixedDomain((int) Input[1] * p -> Domain[1]);
fz = _cmsToFixedDomain((int) Input[2] * p -> Domain[2]);
x0 = FIXED_TO_INT(fx);
y0 = FIXED_TO_INT(fy);
z0 = FIXED_TO_INT(fz);
rx = FIXED_REST_TO_INT(fx);
ry = FIXED_REST_TO_INT(fy);
rz = FIXED_REST_TO_INT(fz);
X0 = p -> opta[2] * x0;
X1 = (Input[0] == 0xFFFFU ? 0 : p->opta[2]);
Y0 = p -> opta[1] * y0;
Y1 = (Input[1] == 0xFFFFU ? 0 : p->opta[1]);
Z0 = p -> opta[0] * z0;
Z1 = (Input[2] == 0xFFFFU ? 0 : p->opta[0]);
LutTable = &LutTable[X0+Y0+Z0];
// Output should be computed as x = ROUND_FIXED_TO_INT(_cmsToFixedDomain(Rest))
// which expands as: x = (Rest + ((Rest+0x7fff)/0xFFFF) + 0x8000)>>16
// This can be replaced by: t = Rest+0x8001, x = (t + (t>>16))>>16
// at the cost of being off by one at 7fff and 17ffe.
if (rx >= ry) {
if (ry >= rz) {
Y1 += X1;
Z1 += Y1;
for (; TotalOut; TotalOut--) {
c1 = LutTable[X1];
c2 = LutTable[Y1];
c3 = LutTable[Z1];
c0 = *LutTable++;
c3 -= c2;
c2 -= c1;
c1 -= c0;
Rest = c1 * rx + c2 * ry + c3 * rz + 0x8001;
*Output++ = (cmsUInt16Number) c0 + ((Rest + (Rest>>16))>>16);
}
} else if (rz >= rx) {
X1 += Z1;
Y1 += X1;
for (; TotalOut; TotalOut--) {
c1 = LutTable[X1];
c2 = LutTable[Y1];
c3 = LutTable[Z1];
c0 = *LutTable++;
c2 -= c1;
c1 -= c3;
c3 -= c0;
Rest = c1 * rx + c2 * ry + c3 * rz + 0x8001;
*Output++ = (cmsUInt16Number) c0 + ((Rest + (Rest>>16))>>16);
}
} else {
Z1 += X1;
Y1 += Z1;
for (; TotalOut; TotalOut--) {
c1 = LutTable[X1];
c2 = LutTable[Y1];
c3 = LutTable[Z1];
c0 = *LutTable++;
c2 -= c3;
c3 -= c1;
c1 -= c0;
Rest = c1 * rx + c2 * ry + c3 * rz + 0x8001;
*Output++ = (cmsUInt16Number) c0 + ((Rest + (Rest>>16))>>16);
}
}
} else {
if (rx >= rz) {
X1 += Y1;
Z1 += X1;
for (; TotalOut; TotalOut--) {
c1 = LutTable[X1];
c2 = LutTable[Y1];
c3 = LutTable[Z1];
c0 = *LutTable++;
c3 -= c1;
c1 -= c2;
c2 -= c0;
Rest = c1 * rx + c2 * ry + c3 * rz + 0x8001;
*Output++ = (cmsUInt16Number) c0 + ((Rest + (Rest>>16))>>16);
}
} else if (ry >= rz) {
Z1 += Y1;
X1 += Z1;
for (; TotalOut; TotalOut--) {
c1 = LutTable[X1];
c2 = LutTable[Y1];
c3 = LutTable[Z1];
c0 = *LutTable++;
c1 -= c3;
c3 -= c2;
c2 -= c0;
Rest = c1 * rx + c2 * ry + c3 * rz + 0x8001;
*Output++ = (cmsUInt16Number) c0 + ((Rest + (Rest>>16))>>16);
}
} else {
Y1 += Z1;
X1 += Y1;
for (; TotalOut; TotalOut--) {
c1 = LutTable[X1];
c2 = LutTable[Y1];
c3 = LutTable[Z1];
c0 = *LutTable++;
c1 -= c2;
c2 -= c3;
c3 -= c0;
Rest = c1 * rx + c2 * ry + c3 * rz + 0x8001;
*Output++ = (cmsUInt16Number) c0 + ((Rest + (Rest>>16))>>16);
}
}
}
}
#define DENS(i,j,k) (LutTable[(i)+(j)+(k)+OutChan])
static
void Eval4Inputs(register const cmsUInt16Number Input[],
register cmsUInt16Number Output[],
register const cmsInterpParams* p16)
{
const cmsUInt16Number* LutTable;
cmsS15Fixed16Number fk;
cmsS15Fixed16Number k0, rk;
int K0, K1;
cmsS15Fixed16Number fx, fy, fz;
cmsS15Fixed16Number rx, ry, rz;
int x0, y0, z0;
cmsS15Fixed16Number X0, X1, Y0, Y1, Z0, Z1;
cmsUInt32Number i;
cmsS15Fixed16Number c0, c1, c2, c3, Rest;
cmsUInt32Number OutChan;
cmsUInt16Number Tmp1[MAX_STAGE_CHANNELS], Tmp2[MAX_STAGE_CHANNELS];
fk = _cmsToFixedDomain((int) Input[0] * p16 -> Domain[0]);
fx = _cmsToFixedDomain((int) Input[1] * p16 -> Domain[1]);
fy = _cmsToFixedDomain((int) Input[2] * p16 -> Domain[2]);
fz = _cmsToFixedDomain((int) Input[3] * p16 -> Domain[3]);
k0 = FIXED_TO_INT(fk);
x0 = FIXED_TO_INT(fx);
y0 = FIXED_TO_INT(fy);
z0 = FIXED_TO_INT(fz);
rk = FIXED_REST_TO_INT(fk);
rx = FIXED_REST_TO_INT(fx);
ry = FIXED_REST_TO_INT(fy);
rz = FIXED_REST_TO_INT(fz);
K0 = p16 -> opta[3] * k0;
K1 = K0 + (Input[0] == 0xFFFFU ? 0 : p16->opta[3]);
X0 = p16 -> opta[2] * x0;
X1 = X0 + (Input[1] == 0xFFFFU ? 0 : p16->opta[2]);
Y0 = p16 -> opta[1] * y0;
Y1 = Y0 + (Input[2] == 0xFFFFU ? 0 : p16->opta[1]);
Z0 = p16 -> opta[0] * z0;
Z1 = Z0 + (Input[3] == 0xFFFFU ? 0 : p16->opta[0]);
LutTable = (cmsUInt16Number*) p16 -> Table;
LutTable += K0;
for (OutChan=0; OutChan < p16 -> nOutputs; OutChan++) {
c0 = DENS(X0, Y0, Z0);
if (rx >= ry && ry >= rz) {
c1 = DENS(X1, Y0, Z0) - c0;
c2 = DENS(X1, Y1, Z0) - DENS(X1, Y0, Z0);
c3 = DENS(X1, Y1, Z1) - DENS(X1, Y1, Z0);
}
else
if (rx >= rz && rz >= ry) {
c1 = DENS(X1, Y0, Z0) - c0;
c2 = DENS(X1, Y1, Z1) - DENS(X1, Y0, Z1);
c3 = DENS(X1, Y0, Z1) - DENS(X1, Y0, Z0);
}
else
if (rz >= rx && rx >= ry) {
c1 = DENS(X1, Y0, Z1) - DENS(X0, Y0, Z1);
c2 = DENS(X1, Y1, Z1) - DENS(X1, Y0, Z1);
c3 = DENS(X0, Y0, Z1) - c0;
}
else
if (ry >= rx && rx >= rz) {
c1 = DENS(X1, Y1, Z0) - DENS(X0, Y1, Z0);
c2 = DENS(X0, Y1, Z0) - c0;
c3 = DENS(X1, Y1, Z1) - DENS(X1, Y1, Z0);
}
else
if (ry >= rz && rz >= rx) {
c1 = DENS(X1, Y1, Z1) - DENS(X0, Y1, Z1);
c2 = DENS(X0, Y1, Z0) - c0;
c3 = DENS(X0, Y1, Z1) - DENS(X0, Y1, Z0);
}
else
if (rz >= ry && ry >= rx) {
c1 = DENS(X1, Y1, Z1) - DENS(X0, Y1, Z1);
c2 = DENS(X0, Y1, Z1) - DENS(X0, Y0, Z1);
c3 = DENS(X0, Y0, Z1) - c0;
}
else {
c1 = c2 = c3 = 0;
}
Rest = c1 * rx + c2 * ry + c3 * rz;
Tmp1[OutChan] = (cmsUInt16Number) c0 + ROUND_FIXED_TO_INT(_cmsToFixedDomain(Rest));
}
LutTable = (cmsUInt16Number*) p16 -> Table;
LutTable += K1;
for (OutChan=0; OutChan < p16 -> nOutputs; OutChan++) {
c0 = DENS(X0, Y0, Z0);
if (rx >= ry && ry >= rz) {
c1 = DENS(X1, Y0, Z0) - c0;
c2 = DENS(X1, Y1, Z0) - DENS(X1, Y0, Z0);
c3 = DENS(X1, Y1, Z1) - DENS(X1, Y1, Z0);
}
else
if (rx >= rz && rz >= ry) {
c1 = DENS(X1, Y0, Z0) - c0;
c2 = DENS(X1, Y1, Z1) - DENS(X1, Y0, Z1);
c3 = DENS(X1, Y0, Z1) - DENS(X1, Y0, Z0);
}
else
if (rz >= rx && rx >= ry) {
c1 = DENS(X1, Y0, Z1) - DENS(X0, Y0, Z1);
c2 = DENS(X1, Y1, Z1) - DENS(X1, Y0, Z1);
c3 = DENS(X0, Y0, Z1) - c0;
}
else
if (ry >= rx && rx >= rz) {
c1 = DENS(X1, Y1, Z0) - DENS(X0, Y1, Z0);
c2 = DENS(X0, Y1, Z0) - c0;
c3 = DENS(X1, Y1, Z1) - DENS(X1, Y1, Z0);
}
else
if (ry >= rz && rz >= rx) {
c1 = DENS(X1, Y1, Z1) - DENS(X0, Y1, Z1);
c2 = DENS(X0, Y1, Z0) - c0;
c3 = DENS(X0, Y1, Z1) - DENS(X0, Y1, Z0);
}
else
if (rz >= ry && ry >= rx) {
c1 = DENS(X1, Y1, Z1) - DENS(X0, Y1, Z1);
c2 = DENS(X0, Y1, Z1) - DENS(X0, Y0, Z1);
c3 = DENS(X0, Y0, Z1) - c0;
}
else {
c1 = c2 = c3 = 0;
}
Rest = c1 * rx + c2 * ry + c3 * rz;
Tmp2[OutChan] = (cmsUInt16Number) c0 + ROUND_FIXED_TO_INT(_cmsToFixedDomain(Rest));
}
for (i=0; i < p16 -> nOutputs; i++) {
Output[i] = LinearInterp(rk, Tmp1[i], Tmp2[i]);
}
}
#undef DENS
// For more that 3 inputs (i.e., CMYK)
// evaluate two 3-dimensional interpolations and then linearly interpolate between them.
static
void Eval4InputsFloat(const cmsFloat32Number Input[],
cmsFloat32Number Output[],
const cmsInterpParams* p)
{
const cmsFloat32Number* LutTable = (cmsFloat32Number*) p -> Table;
cmsFloat32Number rest;
cmsFloat32Number pk;
int k0, K0, K1;
const cmsFloat32Number* T;
cmsUInt32Number i;
cmsFloat32Number Tmp1[MAX_STAGE_CHANNELS], Tmp2[MAX_STAGE_CHANNELS];
cmsInterpParams p1;
pk = Input[0] * p->Domain[0];
k0 = _cmsQuickFloor(pk);
rest = pk - (cmsFloat32Number) k0;
K0 = p -> opta[3] * k0;
K1 = K0 + (Input[0] >= 1.0 ? 0 : p->opta[3]);
p1 = *p;
memmove(&p1.Domain[0], &p ->Domain[1], 3*sizeof(cmsUInt32Number));
T = LutTable + K0;
p1.Table = T;
TetrahedralInterpFloat(Input + 1, Tmp1, &p1);
T = LutTable + K1;
p1.Table = T;
TetrahedralInterpFloat(Input + 1, Tmp2, &p1);
for (i=0; i < p -> nOutputs; i++)
{
cmsFloat32Number y0 = Tmp1[i];
cmsFloat32Number y1 = Tmp2[i];
Output[i] = y0 + (y1 - y0) * rest;
}
}
static
void Eval5Inputs(register const cmsUInt16Number Input[],
register cmsUInt16Number Output[],
register const cmsInterpParams* p16)
{
const cmsUInt16Number* LutTable = (cmsUInt16Number*) p16 -> Table;
cmsS15Fixed16Number fk;
cmsS15Fixed16Number k0, rk;
int K0, K1;
const cmsUInt16Number* T;
cmsUInt32Number i;
cmsUInt16Number Tmp1[MAX_STAGE_CHANNELS], Tmp2[MAX_STAGE_CHANNELS];
cmsInterpParams p1;
fk = _cmsToFixedDomain((cmsS15Fixed16Number) Input[0] * p16 -> Domain[0]);
k0 = FIXED_TO_INT(fk);
rk = FIXED_REST_TO_INT(fk);
K0 = p16 -> opta[4] * k0;
K1 = p16 -> opta[4] * (k0 + (Input[0] != 0xFFFFU ? 1 : 0));
p1 = *p16;
memmove(&p1.Domain[0], &p16 ->Domain[1], 4*sizeof(cmsUInt32Number));
T = LutTable + K0;
p1.Table = T;
Eval4Inputs(Input + 1, Tmp1, &p1);
T = LutTable + K1;
p1.Table = T;
Eval4Inputs(Input + 1, Tmp2, &p1);
for (i=0; i < p16 -> nOutputs; i++) {
Output[i] = LinearInterp(rk, Tmp1[i], Tmp2[i]);
}
}
static
void Eval5InputsFloat(const cmsFloat32Number Input[],
cmsFloat32Number Output[],
const cmsInterpParams* p)
{
const cmsFloat32Number* LutTable = (cmsFloat32Number*) p -> Table;
cmsFloat32Number rest;
cmsFloat32Number pk;
int k0, K0, K1;
const cmsFloat32Number* T;
cmsUInt32Number i;
cmsFloat32Number Tmp1[MAX_STAGE_CHANNELS], Tmp2[MAX_STAGE_CHANNELS];
cmsInterpParams p1;
pk = Input[0] * p->Domain[0];
k0 = _cmsQuickFloor(pk);
rest = pk - (cmsFloat32Number) k0;
K0 = p -> opta[4] * k0;
K1 = K0 + (Input[0] >= 1.0 ? 0 : p->opta[4]);
p1 = *p;
memmove(&p1.Domain[0], &p ->Domain[1], 4*sizeof(cmsUInt32Number));
T = LutTable + K0;
p1.Table = T;
Eval4InputsFloat(Input + 1, Tmp1, &p1);
T = LutTable + K1;
p1.Table = T;
Eval4InputsFloat(Input + 1, Tmp2, &p1);
for (i=0; i < p -> nOutputs; i++) {
cmsFloat32Number y0 = Tmp1[i];
cmsFloat32Number y1 = Tmp2[i];
Output[i] = y0 + (y1 - y0) * rest;
}
}
static
void Eval6Inputs(register const cmsUInt16Number Input[],
register cmsUInt16Number Output[],
register const cmsInterpParams* p16)
{
const cmsUInt16Number* LutTable = (cmsUInt16Number*) p16 -> Table;
cmsS15Fixed16Number fk;
cmsS15Fixed16Number k0, rk;
int K0, K1;
const cmsUInt16Number* T;
cmsUInt32Number i;
cmsUInt16Number Tmp1[MAX_STAGE_CHANNELS], Tmp2[MAX_STAGE_CHANNELS];
cmsInterpParams p1;
fk = _cmsToFixedDomain((cmsS15Fixed16Number) Input[0] * p16 -> Domain[0]);
k0 = FIXED_TO_INT(fk);
rk = FIXED_REST_TO_INT(fk);
K0 = p16 -> opta[5] * k0;
K1 = p16 -> opta[5] * (k0 + (Input[0] != 0xFFFFU ? 1 : 0));
p1 = *p16;
memmove(&p1.Domain[0], &p16 ->Domain[1], 5*sizeof(cmsUInt32Number));
T = LutTable + K0;
p1.Table = T;
Eval5Inputs(Input + 1, Tmp1, &p1);
T = LutTable + K1;
p1.Table = T;
Eval5Inputs(Input + 1, Tmp2, &p1);
for (i=0; i < p16 -> nOutputs; i++) {
Output[i] = LinearInterp(rk, Tmp1[i], Tmp2[i]);
}
}
static
void Eval6InputsFloat(const cmsFloat32Number Input[],
cmsFloat32Number Output[],
const cmsInterpParams* p)
{
const cmsFloat32Number* LutTable = (cmsFloat32Number*) p -> Table;
cmsFloat32Number rest;
cmsFloat32Number pk;
int k0, K0, K1;
const cmsFloat32Number* T;
cmsUInt32Number i;
cmsFloat32Number Tmp1[MAX_STAGE_CHANNELS], Tmp2[MAX_STAGE_CHANNELS];
cmsInterpParams p1;
pk = Input[0] * p->Domain[0];
k0 = _cmsQuickFloor(pk);
rest = pk - (cmsFloat32Number) k0;
K0 = p -> opta[5] * k0;
K1 = K0 + (Input[0] >= 1.0 ? 0 : p->opta[5]);
p1 = *p;
memmove(&p1.Domain[0], &p ->Domain[1], 5*sizeof(cmsUInt32Number));
T = LutTable + K0;
p1.Table = T;
Eval5InputsFloat(Input + 1, Tmp1, &p1);
T = LutTable + K1;
p1.Table = T;
Eval5InputsFloat(Input + 1, Tmp2, &p1);
for (i=0; i < p -> nOutputs; i++) {
cmsFloat32Number y0 = Tmp1[i];
cmsFloat32Number y1 = Tmp2[i];
Output[i] = y0 + (y1 - y0) * rest;
}
}
static
void Eval7Inputs(register const cmsUInt16Number Input[],
register cmsUInt16Number Output[],
register const cmsInterpParams* p16)
{
const cmsUInt16Number* LutTable = (cmsUInt16Number*) p16 -> Table;
cmsS15Fixed16Number fk;
cmsS15Fixed16Number k0, rk;
int K0, K1;
const cmsUInt16Number* T;
cmsUInt32Number i;
cmsUInt16Number Tmp1[MAX_STAGE_CHANNELS], Tmp2[MAX_STAGE_CHANNELS];
cmsInterpParams p1;
fk = _cmsToFixedDomain((cmsS15Fixed16Number) Input[0] * p16 -> Domain[0]);
k0 = FIXED_TO_INT(fk);
rk = FIXED_REST_TO_INT(fk);
K0 = p16 -> opta[6] * k0;
K1 = p16 -> opta[6] * (k0 + (Input[0] != 0xFFFFU ? 1 : 0));
p1 = *p16;
memmove(&p1.Domain[0], &p16 ->Domain[1], 6*sizeof(cmsUInt32Number));
T = LutTable + K0;
p1.Table = T;
Eval6Inputs(Input + 1, Tmp1, &p1);
T = LutTable + K1;
p1.Table = T;
Eval6Inputs(Input + 1, Tmp2, &p1);
for (i=0; i < p16 -> nOutputs; i++) {
Output[i] = LinearInterp(rk, Tmp1[i], Tmp2[i]);
}
}
static
void Eval7InputsFloat(const cmsFloat32Number Input[],
cmsFloat32Number Output[],
const cmsInterpParams* p)
{
const cmsFloat32Number* LutTable = (cmsFloat32Number*) p -> Table;
cmsFloat32Number rest;
cmsFloat32Number pk;
int k0, K0, K1;
const cmsFloat32Number* T;
cmsUInt32Number i;
cmsFloat32Number Tmp1[MAX_STAGE_CHANNELS], Tmp2[MAX_STAGE_CHANNELS];
cmsInterpParams p1;
pk = Input[0] * p->Domain[0];
k0 = _cmsQuickFloor(pk);
rest = pk - (cmsFloat32Number) k0;
K0 = p -> opta[6] * k0;
K1 = K0 + (Input[0] >= 1.0 ? 0 : p->opta[6]);
p1 = *p;
memmove(&p1.Domain[0], &p ->Domain[1], 6*sizeof(cmsUInt32Number));
T = LutTable + K0;
p1.Table = T;
Eval6InputsFloat(Input + 1, Tmp1, &p1);
T = LutTable + K1;
p1.Table = T;
Eval6InputsFloat(Input + 1, Tmp2, &p1);
for (i=0; i < p -> nOutputs; i++) {
cmsFloat32Number y0 = Tmp1[i];
cmsFloat32Number y1 = Tmp2[i];
Output[i] = y0 + (y1 - y0) * rest;
}
}
static
void Eval8Inputs(register const cmsUInt16Number Input[],
register cmsUInt16Number Output[],
register const cmsInterpParams* p16)
{
const cmsUInt16Number* LutTable = (cmsUInt16Number*) p16 -> Table;
cmsS15Fixed16Number fk;
cmsS15Fixed16Number k0, rk;
int K0, K1;
const cmsUInt16Number* T;
cmsUInt32Number i;
cmsUInt16Number Tmp1[MAX_STAGE_CHANNELS], Tmp2[MAX_STAGE_CHANNELS];
cmsInterpParams p1;
fk = _cmsToFixedDomain((cmsS15Fixed16Number) Input[0] * p16 -> Domain[0]);
k0 = FIXED_TO_INT(fk);
rk = FIXED_REST_TO_INT(fk);
K0 = p16 -> opta[7] * k0;
K1 = p16 -> opta[7] * (k0 + (Input[0] != 0xFFFFU ? 1 : 0));
p1 = *p16;
memmove(&p1.Domain[0], &p16 ->Domain[1], 7*sizeof(cmsUInt32Number));
T = LutTable + K0;
p1.Table = T;
Eval7Inputs(Input + 1, Tmp1, &p1);
T = LutTable + K1;
p1.Table = T;
Eval7Inputs(Input + 1, Tmp2, &p1);
for (i=0; i < p16 -> nOutputs; i++) {
Output[i] = LinearInterp(rk, Tmp1[i], Tmp2[i]);
}
}
static
void Eval8InputsFloat(const cmsFloat32Number Input[],
cmsFloat32Number Output[],
const cmsInterpParams* p)
{
const cmsFloat32Number* LutTable = (cmsFloat32Number*) p -> Table;
cmsFloat32Number rest;
cmsFloat32Number pk;
int k0, K0, K1;
const cmsFloat32Number* T;
cmsUInt32Number i;
cmsFloat32Number Tmp1[MAX_STAGE_CHANNELS], Tmp2[MAX_STAGE_CHANNELS];
cmsInterpParams p1;
pk = Input[0] * p->Domain[0];
k0 = _cmsQuickFloor(pk);
rest = pk - (cmsFloat32Number) k0;
K0 = p -> opta[7] * k0;
K1 = K0 + (Input[0] >= 1.0 ? 0 : p->opta[7]);
p1 = *p;
memmove(&p1.Domain[0], &p ->Domain[1], 7*sizeof(cmsUInt32Number));
T = LutTable + K0;
p1.Table = T;
Eval7InputsFloat(Input + 1, Tmp1, &p1);
T = LutTable + K1;
p1.Table = T;
Eval7InputsFloat(Input + 1, Tmp2, &p1);
for (i=0; i < p -> nOutputs; i++) {
cmsFloat32Number y0 = Tmp1[i];
cmsFloat32Number y1 = Tmp2[i];
Output[i] = y0 + (y1 - y0) * rest;
}
}
// The default factory
static
cmsInterpFunction DefaultInterpolatorsFactory(cmsUInt32Number nInputChannels, cmsUInt32Number nOutputChannels, cmsUInt32Number dwFlags)
{
cmsInterpFunction Interpolation;
cmsBool IsFloat = (dwFlags & CMS_LERP_FLAGS_FLOAT);
cmsBool IsTrilinear = (dwFlags & CMS_LERP_FLAGS_TRILINEAR);
memset(&Interpolation, 0, sizeof(Interpolation));
// Safety check
if (nInputChannels >= 4 && nOutputChannels >= MAX_STAGE_CHANNELS)
return Interpolation;
switch (nInputChannels) {
case 1: // Gray LUT / linear
if (nOutputChannels == 1) {
if (IsFloat)
Interpolation.LerpFloat = LinLerp1Dfloat;
else
Interpolation.Lerp16 = LinLerp1D;
}
else {
if (IsFloat)
Interpolation.LerpFloat = Eval1InputFloat;
else
Interpolation.Lerp16 = Eval1Input;
}
break;
case 2: // Duotone
if (IsFloat)
Interpolation.LerpFloat = BilinearInterpFloat;
else
Interpolation.Lerp16 = BilinearInterp16;
break;
case 3: // RGB et al
if (IsTrilinear) {
if (IsFloat)
Interpolation.LerpFloat = TrilinearInterpFloat;
else
Interpolation.Lerp16 = TrilinearInterp16;
}
else {
if (IsFloat)
Interpolation.LerpFloat = TetrahedralInterpFloat;
else {
Interpolation.Lerp16 = TetrahedralInterp16;
}
}
break;
case 4: // CMYK lut
if (IsFloat)
Interpolation.LerpFloat = Eval4InputsFloat;
else
Interpolation.Lerp16 = Eval4Inputs;
break;
case 5: // 5 Inks
if (IsFloat)
Interpolation.LerpFloat = Eval5InputsFloat;
else
Interpolation.Lerp16 = Eval5Inputs;
break;
case 6: // 6 Inks
if (IsFloat)
Interpolation.LerpFloat = Eval6InputsFloat;
else
Interpolation.Lerp16 = Eval6Inputs;
break;
case 7: // 7 inks
if (IsFloat)
Interpolation.LerpFloat = Eval7InputsFloat;
else
Interpolation.Lerp16 = Eval7Inputs;
break;
case 8: // 8 inks
if (IsFloat)
Interpolation.LerpFloat = Eval8InputsFloat;
else
Interpolation.Lerp16 = Eval8Inputs;
break;
break;
default:
Interpolation.Lerp16 = NULL;
}
return Interpolation;
}
|
57 | ./little-cms/src/cmsio1.c | //---------------------------------------------------------------------------------
//
// Little Color Management System
// Copyright (c) 1998-2012 Marti Maria Saguer
//
// Permission is hereby granted, free of charge, to any person obtaining
// a copy of this software and associated documentation files (the "Software"),
// to deal in the Software without restriction, including without limitation
// the rights to use, copy, modify, merge, publish, distribute, sublicense,
// and/or sell copies of the Software, and to permit persons to whom the Software
// is furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO
// THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
// LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
// OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
// WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
//
//---------------------------------------------------------------------------------
//
#include "lcms2_internal.h"
// Read tags using low-level functions, provides necessary glue code to adapt versions, etc.
// LUT tags
static const cmsTagSignature Device2PCS16[] = {cmsSigAToB0Tag, // Perceptual
cmsSigAToB1Tag, // Relative colorimetric
cmsSigAToB2Tag, // Saturation
cmsSigAToB1Tag }; // Absolute colorimetric
static const cmsTagSignature Device2PCSFloat[] = {cmsSigDToB0Tag, // Perceptual
cmsSigDToB1Tag, // Relative colorimetric
cmsSigDToB2Tag, // Saturation
cmsSigDToB3Tag }; // Absolute colorimetric
static const cmsTagSignature PCS2Device16[] = {cmsSigBToA0Tag, // Perceptual
cmsSigBToA1Tag, // Relative colorimetric
cmsSigBToA2Tag, // Saturation
cmsSigBToA1Tag }; // Absolute colorimetric
static const cmsTagSignature PCS2DeviceFloat[] = {cmsSigBToD0Tag, // Perceptual
cmsSigBToD1Tag, // Relative colorimetric
cmsSigBToD2Tag, // Saturation
cmsSigBToD3Tag }; // Absolute colorimetric
// Factors to convert from 1.15 fixed point to 0..1.0 range and vice-versa
#define InpAdj (1.0/MAX_ENCODEABLE_XYZ) // (65536.0/(65535.0*2.0))
#define OutpAdj (MAX_ENCODEABLE_XYZ) // ((2.0*65535.0)/65536.0)
// Several resources for gray conversions.
static const cmsFloat64Number GrayInputMatrix[] = { (InpAdj*cmsD50X), (InpAdj*cmsD50Y), (InpAdj*cmsD50Z) };
static const cmsFloat64Number OneToThreeInputMatrix[] = { 1, 1, 1 };
static const cmsFloat64Number PickYMatrix[] = { 0, (OutpAdj*cmsD50Y), 0 };
static const cmsFloat64Number PickLstarMatrix[] = { 1, 0, 0 };
// Get a media white point fixing some issues found in certain old profiles
cmsBool _cmsReadMediaWhitePoint(cmsCIEXYZ* Dest, cmsHPROFILE hProfile)
{
cmsCIEXYZ* Tag;
_cmsAssert(Dest != NULL);
Tag = (cmsCIEXYZ*) cmsReadTag(hProfile, cmsSigMediaWhitePointTag);
// If no wp, take D50
if (Tag == NULL) {
*Dest = *cmsD50_XYZ();
return TRUE;
}
// V2 display profiles should give D50
if (cmsGetEncodedICCversion(hProfile) < 0x4000000) {
if (cmsGetDeviceClass(hProfile) == cmsSigDisplayClass) {
*Dest = *cmsD50_XYZ();
return TRUE;
}
}
// All seems ok
*Dest = *Tag;
return TRUE;
}
// Chromatic adaptation matrix. Fix some issues as well
cmsBool _cmsReadCHAD(cmsMAT3* Dest, cmsHPROFILE hProfile)
{
cmsMAT3* Tag;
_cmsAssert(Dest != NULL);
Tag = (cmsMAT3*) cmsReadTag(hProfile, cmsSigChromaticAdaptationTag);
if (Tag != NULL) {
*Dest = *Tag;
return TRUE;
}
// No CHAD available, default it to identity
_cmsMAT3identity(Dest);
// V2 display profiles should give D50
if (cmsGetEncodedICCversion(hProfile) < 0x4000000) {
if (cmsGetDeviceClass(hProfile) == cmsSigDisplayClass) {
cmsCIEXYZ* White = (cmsCIEXYZ*) cmsReadTag(hProfile, cmsSigMediaWhitePointTag);
if (White == NULL) {
_cmsMAT3identity(Dest);
return TRUE;
}
return _cmsAdaptationMatrix(Dest, NULL, White, cmsD50_XYZ());
}
}
return TRUE;
}
// Auxiliar, read colorants as a MAT3 structure. Used by any function that needs a matrix-shaper
static
cmsBool ReadICCMatrixRGB2XYZ(cmsMAT3* r, cmsHPROFILE hProfile)
{
cmsCIEXYZ *PtrRed, *PtrGreen, *PtrBlue;
_cmsAssert(r != NULL);
PtrRed = (cmsCIEXYZ *) cmsReadTag(hProfile, cmsSigRedColorantTag);
PtrGreen = (cmsCIEXYZ *) cmsReadTag(hProfile, cmsSigGreenColorantTag);
PtrBlue = (cmsCIEXYZ *) cmsReadTag(hProfile, cmsSigBlueColorantTag);
if (PtrRed == NULL || PtrGreen == NULL || PtrBlue == NULL)
return FALSE;
_cmsVEC3init(&r -> v[0], PtrRed -> X, PtrGreen -> X, PtrBlue -> X);
_cmsVEC3init(&r -> v[1], PtrRed -> Y, PtrGreen -> Y, PtrBlue -> Y);
_cmsVEC3init(&r -> v[2], PtrRed -> Z, PtrGreen -> Z, PtrBlue -> Z);
return TRUE;
}
// Gray input pipeline
static
cmsPipeline* BuildGrayInputMatrixPipeline(cmsHPROFILE hProfile)
{
cmsToneCurve *GrayTRC;
cmsPipeline* Lut;
cmsContext ContextID = cmsGetProfileContextID(hProfile);
GrayTRC = (cmsToneCurve *) cmsReadTag(hProfile, cmsSigGrayTRCTag);
if (GrayTRC == NULL) return NULL;
Lut = cmsPipelineAlloc(ContextID, 1, 3);
if (Lut == NULL)
goto Error;
if (cmsGetPCS(hProfile) == cmsSigLabData) {
// In this case we implement the profile as an identity matrix plus 3 tone curves
cmsUInt16Number Zero[2] = { 0x8080, 0x8080 };
cmsToneCurve* EmptyTab;
cmsToneCurve* LabCurves[3];
EmptyTab = cmsBuildTabulatedToneCurve16(ContextID, 2, Zero);
if (EmptyTab == NULL)
goto Error;
LabCurves[0] = GrayTRC;
LabCurves[1] = EmptyTab;
LabCurves[2] = EmptyTab;
if (!cmsPipelineInsertStage(Lut, cmsAT_END, cmsStageAllocMatrix(ContextID, 3, 1, OneToThreeInputMatrix, NULL)) ||
!cmsPipelineInsertStage(Lut, cmsAT_END, cmsStageAllocToneCurves(ContextID, 3, LabCurves))) {
cmsFreeToneCurve(EmptyTab);
goto Error;
}
cmsFreeToneCurve(EmptyTab);
}
else {
if (!cmsPipelineInsertStage(Lut, cmsAT_END, cmsStageAllocToneCurves(ContextID, 1, &GrayTRC)) ||
!cmsPipelineInsertStage(Lut, cmsAT_END, cmsStageAllocMatrix(ContextID, 3, 1, GrayInputMatrix, NULL)))
goto Error;
}
return Lut;
Error:
cmsFreeToneCurve(GrayTRC);
cmsPipelineFree(Lut);
return NULL;
}
// RGB Matrix shaper
static
cmsPipeline* BuildRGBInputMatrixShaper(cmsHPROFILE hProfile)
{
cmsPipeline* Lut;
cmsMAT3 Mat;
cmsToneCurve *Shapes[3];
cmsContext ContextID = cmsGetProfileContextID(hProfile);
int i, j;
if (!ReadICCMatrixRGB2XYZ(&Mat, hProfile)) return NULL;
// XYZ PCS in encoded in 1.15 format, and the matrix output comes in 0..0xffff range, so
// we need to adjust the output by a factor of (0x10000/0xffff) to put data in
// a 1.16 range, and then a >> 1 to obtain 1.15. The total factor is (65536.0)/(65535.0*2)
for (i=0; i < 3; i++)
for (j=0; j < 3; j++)
Mat.v[i].n[j] *= InpAdj;
Shapes[0] = (cmsToneCurve *) cmsReadTag(hProfile, cmsSigRedTRCTag);
Shapes[1] = (cmsToneCurve *) cmsReadTag(hProfile, cmsSigGreenTRCTag);
Shapes[2] = (cmsToneCurve *) cmsReadTag(hProfile, cmsSigBlueTRCTag);
if (!Shapes[0] || !Shapes[1] || !Shapes[2])
return NULL;
Lut = cmsPipelineAlloc(ContextID, 3, 3);
if (Lut != NULL) {
if (!cmsPipelineInsertStage(Lut, cmsAT_END, cmsStageAllocToneCurves(ContextID, 3, Shapes)) ||
!cmsPipelineInsertStage(Lut, cmsAT_END, cmsStageAllocMatrix(ContextID, 3, 3, (cmsFloat64Number*) &Mat, NULL)))
goto Error;
// Note that it is certainly possible a single profile would have a LUT based
// tag for output working in lab and a matrix-shaper for the fallback cases.
// This is not allowed by the spec, but this code is tolerant to those cases
if (cmsGetPCS(hProfile) == cmsSigLabData) {
if (!cmsPipelineInsertStage(Lut, cmsAT_END, _cmsStageAllocXYZ2Lab(ContextID)))
goto Error;
}
}
return Lut;
Error:
cmsPipelineFree(Lut);
return NULL;
}
// Read the DToAX tag, adjusting the encoding of Lab or XYZ if neded
static
cmsPipeline* _cmsReadFloatInputTag(cmsHPROFILE hProfile, cmsTagSignature tagFloat)
{
cmsContext ContextID = cmsGetProfileContextID(hProfile);
cmsPipeline* Lut = cmsPipelineDup((cmsPipeline*) cmsReadTag(hProfile, tagFloat));
cmsColorSpaceSignature spc = cmsGetColorSpace(hProfile);
cmsColorSpaceSignature PCS = cmsGetPCS(hProfile);
if (Lut == NULL) return NULL;
// input and output of transform are in lcms 0..1 encoding. If XYZ or Lab spaces are used,
// these need to be normalized into the appropriate ranges (Lab = 100,0,0, XYZ=1.0,1.0,1.0)
if ( spc == cmsSigLabData)
{
if (!cmsPipelineInsertStage(Lut, cmsAT_BEGIN, _cmsStageNormalizeToLabFloat(ContextID)))
goto Error;
}
else if (spc == cmsSigXYZData)
{
if (!cmsPipelineInsertStage(Lut, cmsAT_BEGIN, _cmsStageNormalizeToXyzFloat(ContextID)))
goto Error;
}
if ( PCS == cmsSigLabData)
{
if (!cmsPipelineInsertStage(Lut, cmsAT_END, _cmsStageNormalizeFromLabFloat(ContextID)))
goto Error;
}
else if( PCS == cmsSigXYZData)
{
if (!cmsPipelineInsertStage(Lut, cmsAT_END, _cmsStageNormalizeFromXyzFloat(ContextID)))
goto Error;
}
return Lut;
Error:
cmsPipelineFree(Lut);
return NULL;
}
// Read and create a BRAND NEW MPE LUT from a given profile. All stuff dependent of version, etc
// is adjusted here in order to create a LUT that takes care of all those details
cmsPipeline* _cmsReadInputLUT(cmsHPROFILE hProfile, int Intent)
{
cmsTagTypeSignature OriginalType;
cmsTagSignature tag16 = Device2PCS16[Intent];
cmsTagSignature tagFloat = Device2PCSFloat[Intent];
cmsContext ContextID = cmsGetProfileContextID(hProfile);
// On named color, take the appropiate tag
if (cmsGetDeviceClass(hProfile) == cmsSigNamedColorClass) {
cmsPipeline* Lut;
cmsNAMEDCOLORLIST* nc = (cmsNAMEDCOLORLIST*) cmsReadTag(hProfile, cmsSigNamedColor2Tag);
if (nc == NULL) return NULL;
Lut = cmsPipelineAlloc(ContextID, 0, 0);
if (Lut == NULL) {
cmsFreeNamedColorList(nc);
return NULL;
}
if (!cmsPipelineInsertStage(Lut, cmsAT_BEGIN, _cmsStageAllocNamedColor(nc, TRUE)) ||
!cmsPipelineInsertStage(Lut, cmsAT_END, _cmsStageAllocLabV2ToV4(ContextID))) {
cmsPipelineFree(Lut);
return NULL;
}
return Lut;
}
if (cmsIsTag(hProfile, tagFloat)) { // Float tag takes precedence
// Floating point LUT are always V4, but the encoding range is no
// longer 0..1.0, so we need to add an stage depending on the color space
return _cmsReadFloatInputTag(hProfile, tagFloat);
}
// Revert to perceptual if no tag is found
if (!cmsIsTag(hProfile, tag16)) {
tag16 = Device2PCS16[0];
}
if (cmsIsTag(hProfile, tag16)) { // Is there any LUT-Based table?
// Check profile version and LUT type. Do the necessary adjustments if needed
// First read the tag
cmsPipeline* Lut = (cmsPipeline*) cmsReadTag(hProfile, tag16);
if (Lut == NULL) return NULL;
// After reading it, we have now info about the original type
OriginalType = _cmsGetTagTrueType(hProfile, tag16);
// The profile owns the Lut, so we need to copy it
Lut = cmsPipelineDup(Lut);
// We need to adjust data only for Lab16 on output
if (OriginalType != cmsSigLut16Type || cmsGetPCS(hProfile) != cmsSigLabData)
return Lut;
// If the input is Lab, add also a conversion at the begin
if (cmsGetColorSpace(hProfile) == cmsSigLabData &&
!cmsPipelineInsertStage(Lut, cmsAT_BEGIN, _cmsStageAllocLabV4ToV2(ContextID)))
goto Error;
// Add a matrix for conversion V2 to V4 Lab PCS
if (!cmsPipelineInsertStage(Lut, cmsAT_END, _cmsStageAllocLabV2ToV4(ContextID)))
goto Error;
return Lut;
Error:
cmsPipelineFree(Lut);
return NULL;
}
// Lut was not found, try to create a matrix-shaper
// Check if this is a grayscale profile.
if (cmsGetColorSpace(hProfile) == cmsSigGrayData) {
// if so, build appropiate conversion tables.
// The tables are the PCS iluminant, scaled across GrayTRC
return BuildGrayInputMatrixPipeline(hProfile);
}
// Not gray, create a normal matrix-shaper
return BuildRGBInputMatrixShaper(hProfile);
}
// ---------------------------------------------------------------------------------------------------------------
// Gray output pipeline.
// XYZ -> Gray or Lab -> Gray. Since we only know the GrayTRC, we need to do some assumptions. Gray component will be
// given by Y on XYZ PCS and by L* on Lab PCS, Both across inverse TRC curve.
// The complete pipeline on XYZ is Matrix[3:1] -> Tone curve and in Lab Matrix[3:1] -> Tone Curve as well.
static
cmsPipeline* BuildGrayOutputPipeline(cmsHPROFILE hProfile)
{
cmsToneCurve *GrayTRC, *RevGrayTRC;
cmsPipeline* Lut;
cmsContext ContextID = cmsGetProfileContextID(hProfile);
GrayTRC = (cmsToneCurve *) cmsReadTag(hProfile, cmsSigGrayTRCTag);
if (GrayTRC == NULL) return NULL;
RevGrayTRC = cmsReverseToneCurve(GrayTRC);
if (RevGrayTRC == NULL) return NULL;
Lut = cmsPipelineAlloc(ContextID, 3, 1);
if (Lut == NULL) {
cmsFreeToneCurve(RevGrayTRC);
return NULL;
}
if (cmsGetPCS(hProfile) == cmsSigLabData) {
if (!cmsPipelineInsertStage(Lut, cmsAT_END, cmsStageAllocMatrix(ContextID, 1, 3, PickLstarMatrix, NULL)))
goto Error;
}
else {
if (!cmsPipelineInsertStage(Lut, cmsAT_END, cmsStageAllocMatrix(ContextID, 1, 3, PickYMatrix, NULL)))
goto Error;
}
if (!cmsPipelineInsertStage(Lut, cmsAT_END, cmsStageAllocToneCurves(ContextID, 1, &RevGrayTRC)))
goto Error;
cmsFreeToneCurve(RevGrayTRC);
return Lut;
Error:
cmsFreeToneCurve(RevGrayTRC);
cmsPipelineFree(Lut);
return NULL;
}
static
cmsPipeline* BuildRGBOutputMatrixShaper(cmsHPROFILE hProfile)
{
cmsPipeline* Lut;
cmsToneCurve *Shapes[3], *InvShapes[3];
cmsMAT3 Mat, Inv;
int i, j;
cmsContext ContextID = cmsGetProfileContextID(hProfile);
if (!ReadICCMatrixRGB2XYZ(&Mat, hProfile))
return NULL;
if (!_cmsMAT3inverse(&Mat, &Inv))
return NULL;
// XYZ PCS in encoded in 1.15 format, and the matrix input should come in 0..0xffff range, so
// we need to adjust the input by a << 1 to obtain a 1.16 fixed and then by a factor of
// (0xffff/0x10000) to put data in 0..0xffff range. Total factor is (2.0*65535.0)/65536.0;
for (i=0; i < 3; i++)
for (j=0; j < 3; j++)
Inv.v[i].n[j] *= OutpAdj;
Shapes[0] = (cmsToneCurve *) cmsReadTag(hProfile, cmsSigRedTRCTag);
Shapes[1] = (cmsToneCurve *) cmsReadTag(hProfile, cmsSigGreenTRCTag);
Shapes[2] = (cmsToneCurve *) cmsReadTag(hProfile, cmsSigBlueTRCTag);
if (!Shapes[0] || !Shapes[1] || !Shapes[2])
return NULL;
InvShapes[0] = cmsReverseToneCurve(Shapes[0]);
InvShapes[1] = cmsReverseToneCurve(Shapes[1]);
InvShapes[2] = cmsReverseToneCurve(Shapes[2]);
if (!InvShapes[0] || !InvShapes[1] || !InvShapes[2]) {
return NULL;
}
Lut = cmsPipelineAlloc(ContextID, 3, 3);
if (Lut != NULL) {
// Note that it is certainly possible a single profile would have a LUT based
// tag for output working in lab and a matrix-shaper for the fallback cases.
// This is not allowed by the spec, but this code is tolerant to those cases
if (cmsGetPCS(hProfile) == cmsSigLabData) {
if (!cmsPipelineInsertStage(Lut, cmsAT_END, _cmsStageAllocLab2XYZ(ContextID)))
goto Error;
}
if (!cmsPipelineInsertStage(Lut, cmsAT_END, cmsStageAllocMatrix(ContextID, 3, 3, (cmsFloat64Number*) &Inv, NULL)) ||
!cmsPipelineInsertStage(Lut, cmsAT_END, cmsStageAllocToneCurves(ContextID, 3, InvShapes)))
goto Error;
}
cmsFreeToneCurveTriple(InvShapes);
return Lut;
Error:
cmsFreeToneCurveTriple(InvShapes);
cmsPipelineFree(Lut);
return NULL;
}
// Change CLUT interpolation to trilinear
static
void ChangeInterpolationToTrilinear(cmsPipeline* Lut)
{
cmsStage* Stage;
for (Stage = cmsPipelineGetPtrToFirstStage(Lut);
Stage != NULL;
Stage = cmsStageNext(Stage)) {
if (cmsStageType(Stage) == cmsSigCLutElemType) {
_cmsStageCLutData* CLUT = (_cmsStageCLutData*) Stage ->Data;
CLUT ->Params->dwFlags |= CMS_LERP_FLAGS_TRILINEAR;
_cmsSetInterpolationRoutine(CLUT ->Params);
}
}
}
// Read the DToAX tag, adjusting the encoding of Lab or XYZ if neded
static
cmsPipeline* _cmsReadFloatOutputTag(cmsHPROFILE hProfile, cmsTagSignature tagFloat)
{
cmsContext ContextID = cmsGetProfileContextID(hProfile);
cmsPipeline* Lut = cmsPipelineDup((cmsPipeline*) cmsReadTag(hProfile, tagFloat));
cmsColorSpaceSignature PCS = cmsGetPCS(hProfile);
cmsColorSpaceSignature dataSpace = cmsGetColorSpace(hProfile);
if (Lut == NULL) return NULL;
// If PCS is Lab or XYZ, the floating point tag is accepting data in the space encoding,
// and since the formatter has already accomodated to 0..1.0, we should undo this change
if ( PCS == cmsSigLabData)
{
if (!cmsPipelineInsertStage(Lut, cmsAT_BEGIN, _cmsStageNormalizeToLabFloat(ContextID)))
goto Error;
}
else
if (PCS == cmsSigXYZData)
{
if (!cmsPipelineInsertStage(Lut, cmsAT_BEGIN, _cmsStageNormalizeToXyzFloat(ContextID)))
goto Error;
}
// the output can be Lab or XYZ, in which case normalisation is needed on the end of the pipeline
if ( dataSpace == cmsSigLabData)
{
if (!cmsPipelineInsertStage(Lut, cmsAT_END, _cmsStageNormalizeFromLabFloat(ContextID)))
goto Error;
}
else if (dataSpace == cmsSigXYZData)
{
if (!cmsPipelineInsertStage(Lut, cmsAT_END, _cmsStageNormalizeFromXyzFloat(ContextID)))
goto Error;
}
return Lut;
Error:
cmsPipelineFree(Lut);
return NULL;
}
// Create an output MPE LUT from agiven profile. Version mismatches are handled here
cmsPipeline* _cmsReadOutputLUT(cmsHPROFILE hProfile, int Intent)
{
cmsTagTypeSignature OriginalType;
cmsTagSignature tag16 = PCS2Device16[Intent];
cmsTagSignature tagFloat = PCS2DeviceFloat[Intent];
cmsContext ContextID = cmsGetProfileContextID(hProfile);
if (cmsIsTag(hProfile, tagFloat)) { // Float tag takes precedence
// Floating point LUT are always V4
return _cmsReadFloatOutputTag(hProfile, tagFloat);
}
// Revert to perceptual if no tag is found
if (!cmsIsTag(hProfile, tag16)) {
tag16 = PCS2Device16[0];
}
if (cmsIsTag(hProfile, tag16)) { // Is there any LUT-Based table?
// Check profile version and LUT type. Do the necessary adjustments if needed
// First read the tag
cmsPipeline* Lut = (cmsPipeline*) cmsReadTag(hProfile, tag16);
if (Lut == NULL) return NULL;
// After reading it, we have info about the original type
OriginalType = _cmsGetTagTrueType(hProfile, tag16);
// The profile owns the Lut, so we need to copy it
Lut = cmsPipelineDup(Lut);
if (Lut == NULL) return NULL;
// Now it is time for a controversial stuff. I found that for 3D LUTS using
// Lab used as indexer space, trilinear interpolation should be used
if (cmsGetPCS(hProfile) == cmsSigLabData)
ChangeInterpolationToTrilinear(Lut);
// We need to adjust data only for Lab and Lut16 type
if (OriginalType != cmsSigLut16Type || cmsGetPCS(hProfile) != cmsSigLabData)
return Lut;
// Add a matrix for conversion V4 to V2 Lab PCS
if (!cmsPipelineInsertStage(Lut, cmsAT_BEGIN, _cmsStageAllocLabV4ToV2(ContextID)))
goto Error;
// If the output is Lab, add also a conversion at the end
if (cmsGetColorSpace(hProfile) == cmsSigLabData)
if (!cmsPipelineInsertStage(Lut, cmsAT_END, _cmsStageAllocLabV2ToV4(ContextID)))
goto Error;
return Lut;
Error:
cmsPipelineFree(Lut);
return NULL;
}
// Lut not found, try to create a matrix-shaper
// Check if this is a grayscale profile.
if (cmsGetColorSpace(hProfile) == cmsSigGrayData) {
// if so, build appropiate conversion tables.
// The tables are the PCS iluminant, scaled across GrayTRC
return BuildGrayOutputPipeline(hProfile);
}
// Not gray, create a normal matrix-shaper, which only operates in XYZ space
return BuildRGBOutputMatrixShaper(hProfile);
}
// ---------------------------------------------------------------------------------------------------------------
// Read the AToD0 tag, adjusting the encoding of Lab or XYZ if neded
static
cmsPipeline* _cmsReadFloatDevicelinkTag(cmsHPROFILE hProfile, cmsTagSignature tagFloat)
{
cmsContext ContextID = cmsGetProfileContextID(hProfile);
cmsPipeline* Lut = cmsPipelineDup((cmsPipeline*) cmsReadTag(hProfile, tagFloat));
cmsColorSpaceSignature PCS = cmsGetPCS(hProfile);
cmsColorSpaceSignature spc = cmsGetColorSpace(hProfile);
if (Lut == NULL) return NULL;
if (spc == cmsSigLabData)
{
if (!cmsPipelineInsertStage(Lut, cmsAT_BEGIN, _cmsStageNormalizeToLabFloat(ContextID)))
goto Error;
}
else
if (spc == cmsSigXYZData)
{
if (!cmsPipelineInsertStage(Lut, cmsAT_BEGIN, _cmsStageNormalizeToXyzFloat(ContextID)))
goto Error;
}
if (PCS == cmsSigLabData)
{
if (!cmsPipelineInsertStage(Lut, cmsAT_END, _cmsStageNormalizeFromLabFloat(ContextID)))
goto Error;
}
else
if (PCS == cmsSigXYZData)
{
if (!cmsPipelineInsertStage(Lut, cmsAT_END, _cmsStageNormalizeFromXyzFloat(ContextID)))
goto Error;
}
return Lut;
Error:
cmsPipelineFree(Lut);
return NULL;
}
// This one includes abstract profiles as well. Matrix-shaper cannot be obtained on that device class. The
// tag name here may default to AToB0
cmsPipeline* _cmsReadDevicelinkLUT(cmsHPROFILE hProfile, int Intent)
{
cmsPipeline* Lut;
cmsTagTypeSignature OriginalType;
cmsTagSignature tag16 = Device2PCS16[Intent];
cmsTagSignature tagFloat = Device2PCSFloat[Intent];
cmsContext ContextID = cmsGetProfileContextID(hProfile);
// On named color, take the appropiate tag
if (cmsGetDeviceClass(hProfile) == cmsSigNamedColorClass) {
cmsNAMEDCOLORLIST* nc = (cmsNAMEDCOLORLIST*) cmsReadTag(hProfile, cmsSigNamedColor2Tag);
if (nc == NULL) return NULL;
Lut = cmsPipelineAlloc(ContextID, 0, 0);
if (Lut == NULL)
goto Error;
if (!cmsPipelineInsertStage(Lut, cmsAT_BEGIN, _cmsStageAllocNamedColor(nc, FALSE)))
goto Error;
if (cmsGetColorSpace(hProfile) == cmsSigLabData)
if (!cmsPipelineInsertStage(Lut, cmsAT_END, _cmsStageAllocLabV2ToV4(ContextID)))
goto Error;
return Lut;
Error:
cmsPipelineFree(Lut);
cmsFreeNamedColorList(nc);
return NULL;
}
if (cmsIsTag(hProfile, tagFloat)) { // Float tag takes precedence
// Floating point LUT are always V
return _cmsReadFloatDevicelinkTag(hProfile, tagFloat);
}
tagFloat = Device2PCSFloat[0];
if (cmsIsTag(hProfile, tagFloat)) {
return cmsPipelineDup((cmsPipeline*) cmsReadTag(hProfile, tagFloat));
}
if (!cmsIsTag(hProfile, tag16)) { // Is there any LUT-Based table?
tag16 = Device2PCS16[0];
if (!cmsIsTag(hProfile, tag16)) return NULL;
}
// Check profile version and LUT type. Do the necessary adjustments if needed
// Read the tag
Lut = (cmsPipeline*) cmsReadTag(hProfile, tag16);
if (Lut == NULL) return NULL;
// The profile owns the Lut, so we need to copy it
Lut = cmsPipelineDup(Lut);
if (Lut == NULL) return NULL;
// Now it is time for a controversial stuff. I found that for 3D LUTS using
// Lab used as indexer space, trilinear interpolation should be used
if (cmsGetColorSpace(hProfile) == cmsSigLabData)
ChangeInterpolationToTrilinear(Lut);
// After reading it, we have info about the original type
OriginalType = _cmsGetTagTrueType(hProfile, tag16);
// We need to adjust data for Lab16 on output
if (OriginalType != cmsSigLut16Type) return Lut;
// Here it is possible to get Lab on both sides
if (cmsGetPCS(hProfile) == cmsSigLabData) {
if(!cmsPipelineInsertStage(Lut, cmsAT_BEGIN, _cmsStageAllocLabV4ToV2(ContextID)))
goto Error2;
}
if (cmsGetColorSpace(hProfile) == cmsSigLabData) {
if(!cmsPipelineInsertStage(Lut, cmsAT_END, _cmsStageAllocLabV2ToV4(ContextID)))
goto Error2;
}
return Lut;
Error2:
cmsPipelineFree(Lut);
return NULL;
}
// ---------------------------------------------------------------------------------------------------------------
// Returns TRUE if the profile is implemented as matrix-shaper
cmsBool CMSEXPORT cmsIsMatrixShaper(cmsHPROFILE hProfile)
{
switch (cmsGetColorSpace(hProfile)) {
case cmsSigGrayData:
return cmsIsTag(hProfile, cmsSigGrayTRCTag);
case cmsSigRgbData:
return (cmsIsTag(hProfile, cmsSigRedColorantTag) &&
cmsIsTag(hProfile, cmsSigGreenColorantTag) &&
cmsIsTag(hProfile, cmsSigBlueColorantTag) &&
cmsIsTag(hProfile, cmsSigRedTRCTag) &&
cmsIsTag(hProfile, cmsSigGreenTRCTag) &&
cmsIsTag(hProfile, cmsSigBlueTRCTag));
default:
return FALSE;
}
}
// Returns TRUE if the intent is implemented as CLUT
cmsBool CMSEXPORT cmsIsCLUT(cmsHPROFILE hProfile, cmsUInt32Number Intent, cmsUInt32Number UsedDirection)
{
const cmsTagSignature* TagTable;
// For devicelinks, the supported intent is that one stated in the header
if (cmsGetDeviceClass(hProfile) == cmsSigLinkClass) {
return (cmsGetHeaderRenderingIntent(hProfile) == Intent);
}
switch (UsedDirection) {
case LCMS_USED_AS_INPUT: TagTable = Device2PCS16; break;
case LCMS_USED_AS_OUTPUT:TagTable = PCS2Device16; break;
// For proofing, we need rel. colorimetric in output. Let's do some recursion
case LCMS_USED_AS_PROOF:
return cmsIsIntentSupported(hProfile, Intent, LCMS_USED_AS_INPUT) &&
cmsIsIntentSupported(hProfile, INTENT_RELATIVE_COLORIMETRIC, LCMS_USED_AS_OUTPUT);
default:
cmsSignalError(cmsGetProfileContextID(hProfile), cmsERROR_RANGE, "Unexpected direction (%d)", UsedDirection);
return FALSE;
}
return cmsIsTag(hProfile, TagTable[Intent]);
}
// Return info about supported intents
cmsBool CMSEXPORT cmsIsIntentSupported(cmsHPROFILE hProfile,
cmsUInt32Number Intent, cmsUInt32Number UsedDirection)
{
if (cmsIsCLUT(hProfile, Intent, UsedDirection)) return TRUE;
// Is there any matrix-shaper? If so, the intent is supported. This is a bit odd, since V2 matrix shaper
// does not fully support relative colorimetric because they cannot deal with non-zero black points, but
// many profiles claims that, and this is certainly not true for V4 profiles. Lets answer "yes" no matter
// the accuracy would be less than optimal in rel.col and v2 case.
return cmsIsMatrixShaper(hProfile);
}
// ---------------------------------------------------------------------------------------------------------------
// Read both, profile sequence description and profile sequence id if present. Then combine both to
// create qa unique structure holding both. Shame on ICC to store things in such complicated way.
cmsSEQ* _cmsReadProfileSequence(cmsHPROFILE hProfile)
{
cmsSEQ* ProfileSeq;
cmsSEQ* ProfileId;
cmsSEQ* NewSeq;
cmsUInt32Number i;
// Take profile sequence description first
ProfileSeq = (cmsSEQ*) cmsReadTag(hProfile, cmsSigProfileSequenceDescTag);
// Take profile sequence ID
ProfileId = (cmsSEQ*) cmsReadTag(hProfile, cmsSigProfileSequenceIdTag);
if (ProfileSeq == NULL && ProfileId == NULL) return NULL;
if (ProfileSeq == NULL) return cmsDupProfileSequenceDescription(ProfileId);
if (ProfileId == NULL) return cmsDupProfileSequenceDescription(ProfileSeq);
// We have to mix both together. For that they must agree
if (ProfileSeq ->n != ProfileId ->n) return cmsDupProfileSequenceDescription(ProfileSeq);
NewSeq = cmsDupProfileSequenceDescription(ProfileSeq);
// Ok, proceed to the mixing
if (NewSeq != NULL) {
for (i=0; i < ProfileSeq ->n; i++) {
memmove(&NewSeq ->seq[i].ProfileID, &ProfileId ->seq[i].ProfileID, sizeof(cmsProfileID));
NewSeq ->seq[i].Description = cmsMLUdup(ProfileId ->seq[i].Description);
}
}
return NewSeq;
}
// Dump the contents of profile sequence in both tags (if v4 available)
cmsBool _cmsWriteProfileSequence(cmsHPROFILE hProfile, const cmsSEQ* seq)
{
if (!cmsWriteTag(hProfile, cmsSigProfileSequenceDescTag, seq)) return FALSE;
if (cmsGetProfileVersion(hProfile) >= 4.0) {
if (!cmsWriteTag(hProfile, cmsSigProfileSequenceIdTag, seq)) return FALSE;
}
return TRUE;
}
// Auxiliar, read and duplicate a MLU if found.
static
cmsMLU* GetMLUFromProfile(cmsHPROFILE h, cmsTagSignature sig)
{
cmsMLU* mlu = (cmsMLU*) cmsReadTag(h, sig);
if (mlu == NULL) return NULL;
return cmsMLUdup(mlu);
}
// Create a sequence description out of an array of profiles
cmsSEQ* _cmsCompileProfileSequence(cmsContext ContextID, cmsUInt32Number nProfiles, cmsHPROFILE hProfiles[])
{
cmsUInt32Number i;
cmsSEQ* seq = cmsAllocProfileSequenceDescription(ContextID, nProfiles);
if (seq == NULL) return NULL;
for (i=0; i < nProfiles; i++) {
cmsPSEQDESC* ps = &seq ->seq[i];
cmsHPROFILE h = hProfiles[i];
cmsTechnologySignature* techpt;
cmsGetHeaderAttributes(h, &ps ->attributes);
cmsGetHeaderProfileID(h, ps ->ProfileID.ID8);
ps ->deviceMfg = cmsGetHeaderManufacturer(h);
ps ->deviceModel = cmsGetHeaderModel(h);
techpt = (cmsTechnologySignature*) cmsReadTag(h, cmsSigTechnologyTag);
if (techpt == NULL)
ps ->technology = (cmsTechnologySignature) 0;
else
ps ->technology = *techpt;
ps ->Manufacturer = GetMLUFromProfile(h, cmsSigDeviceMfgDescTag);
ps ->Model = GetMLUFromProfile(h, cmsSigDeviceModelDescTag);
ps ->Description = GetMLUFromProfile(h, cmsSigProfileDescriptionTag);
}
return seq;
}
// -------------------------------------------------------------------------------------------------------------------
static
const cmsMLU* GetInfo(cmsHPROFILE hProfile, cmsInfoType Info)
{
cmsTagSignature sig;
switch (Info) {
case cmsInfoDescription:
sig = cmsSigProfileDescriptionTag;
break;
case cmsInfoManufacturer:
sig = cmsSigDeviceMfgDescTag;
break;
case cmsInfoModel:
sig = cmsSigDeviceModelDescTag;
break;
case cmsInfoCopyright:
sig = cmsSigCopyrightTag;
break;
default: return NULL;
}
return (cmsMLU*) cmsReadTag(hProfile, sig);
}
cmsUInt32Number CMSEXPORT cmsGetProfileInfo(cmsHPROFILE hProfile, cmsInfoType Info,
const char LanguageCode[3], const char CountryCode[3],
wchar_t* Buffer, cmsUInt32Number BufferSize)
{
const cmsMLU* mlu = GetInfo(hProfile, Info);
if (mlu == NULL) return 0;
return cmsMLUgetWide(mlu, LanguageCode, CountryCode, Buffer, BufferSize);
}
cmsUInt32Number CMSEXPORT cmsGetProfileInfoASCII(cmsHPROFILE hProfile, cmsInfoType Info,
const char LanguageCode[3], const char CountryCode[3],
char* Buffer, cmsUInt32Number BufferSize)
{
const cmsMLU* mlu = GetInfo(hProfile, Info);
if (mlu == NULL) return 0;
return cmsMLUgetASCII(mlu, LanguageCode, CountryCode, Buffer, BufferSize);
}
|
58 | ./little-cms/src/cmscam02.c | //---------------------------------------------------------------------------------
//
// Little Color Management System
// Copyright (c) 1998-2012 Marti Maria Saguer
//
// Permission is hereby granted, free of charge, to any person obtaining
// a copy of this software and associated documentation files (the "Software"),
// to deal in the Software without restriction, including without limitation
// the rights to use, copy, modify, merge, publish, distribute, sublicense,
// and/or sell copies of the Software, and to permit persons to whom the Software
// is furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO
// THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
// LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
// OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
// WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
//
//---------------------------------------------------------------------------------
//
#include "lcms2_internal.h"
// CIECAM 02 appearance model. Many thanks to Jordi Vilar for the debugging.
// ---------- Implementation --------------------------------------------
typedef struct {
cmsFloat64Number XYZ[3];
cmsFloat64Number RGB[3];
cmsFloat64Number RGBc[3];
cmsFloat64Number RGBp[3];
cmsFloat64Number RGBpa[3];
cmsFloat64Number a, b, h, e, H, A, J, Q, s, t, C, M;
cmsFloat64Number abC[2];
cmsFloat64Number abs[2];
cmsFloat64Number abM[2];
} CAM02COLOR;
typedef struct {
CAM02COLOR adoptedWhite;
cmsFloat64Number LA, Yb;
cmsFloat64Number F, c, Nc;
cmsUInt32Number surround;
cmsFloat64Number n, Nbb, Ncb, z, FL, D;
cmsContext ContextID;
} cmsCIECAM02;
static
cmsFloat64Number compute_n(cmsCIECAM02* pMod)
{
return (pMod -> Yb / pMod -> adoptedWhite.XYZ[1]);
}
static
cmsFloat64Number compute_z(cmsCIECAM02* pMod)
{
return (1.48 + pow(pMod -> n, 0.5));
}
static
cmsFloat64Number computeNbb(cmsCIECAM02* pMod)
{
return (0.725 * pow((1.0 / pMod -> n), 0.2));
}
static
cmsFloat64Number computeFL(cmsCIECAM02* pMod)
{
cmsFloat64Number k, FL;
k = 1.0 / ((5.0 * pMod->LA) + 1.0);
FL = 0.2 * pow(k, 4.0) * (5.0 * pMod->LA) + 0.1 *
(pow((1.0 - pow(k, 4.0)), 2.0)) *
(pow((5.0 * pMod->LA), (1.0 / 3.0)));
return FL;
}
static
cmsFloat64Number computeD(cmsCIECAM02* pMod)
{
cmsFloat64Number D;
D = pMod->F - (1.0/3.6)*(exp(((-pMod ->LA-42) / 92.0)));
return D;
}
static
CAM02COLOR XYZtoCAT02(CAM02COLOR clr)
{
clr.RGB[0] = (clr.XYZ[0] * 0.7328) + (clr.XYZ[1] * 0.4296) + (clr.XYZ[2] * -0.1624);
clr.RGB[1] = (clr.XYZ[0] * -0.7036) + (clr.XYZ[1] * 1.6975) + (clr.XYZ[2] * 0.0061);
clr.RGB[2] = (clr.XYZ[0] * 0.0030) + (clr.XYZ[1] * 0.0136) + (clr.XYZ[2] * 0.9834);
return clr;
}
static
CAM02COLOR ChromaticAdaptation(CAM02COLOR clr, cmsCIECAM02* pMod)
{
cmsUInt32Number i;
for (i = 0; i < 3; i++) {
clr.RGBc[i] = ((pMod -> adoptedWhite.XYZ[1] *
(pMod->D / pMod -> adoptedWhite.RGB[i])) +
(1.0 - pMod->D)) * clr.RGB[i];
}
return clr;
}
static
CAM02COLOR CAT02toHPE(CAM02COLOR clr)
{
cmsFloat64Number M[9];
M[0] =(( 0.38971 * 1.096124) + (0.68898 * 0.454369) + (-0.07868 * -0.009628));
M[1] =(( 0.38971 * -0.278869) + (0.68898 * 0.473533) + (-0.07868 * -0.005698));
M[2] =(( 0.38971 * 0.182745) + (0.68898 * 0.072098) + (-0.07868 * 1.015326));
M[3] =((-0.22981 * 1.096124) + (1.18340 * 0.454369) + ( 0.04641 * -0.009628));
M[4] =((-0.22981 * -0.278869) + (1.18340 * 0.473533) + ( 0.04641 * -0.005698));
M[5] =((-0.22981 * 0.182745) + (1.18340 * 0.072098) + ( 0.04641 * 1.015326));
M[6] =(-0.009628);
M[7] =(-0.005698);
M[8] =( 1.015326);
clr.RGBp[0] = (clr.RGBc[0] * M[0]) + (clr.RGBc[1] * M[1]) + (clr.RGBc[2] * M[2]);
clr.RGBp[1] = (clr.RGBc[0] * M[3]) + (clr.RGBc[1] * M[4]) + (clr.RGBc[2] * M[5]);
clr.RGBp[2] = (clr.RGBc[0] * M[6]) + (clr.RGBc[1] * M[7]) + (clr.RGBc[2] * M[8]);
return clr;
}
static
CAM02COLOR NonlinearCompression(CAM02COLOR clr, cmsCIECAM02* pMod)
{
cmsUInt32Number i;
cmsFloat64Number temp;
for (i = 0; i < 3; i++) {
if (clr.RGBp[i] < 0) {
temp = pow((-1.0 * pMod->FL * clr.RGBp[i] / 100.0), 0.42);
clr.RGBpa[i] = (-1.0 * 400.0 * temp) / (temp + 27.13) + 0.1;
}
else {
temp = pow((pMod->FL * clr.RGBp[i] / 100.0), 0.42);
clr.RGBpa[i] = (400.0 * temp) / (temp + 27.13) + 0.1;
}
}
clr.A = (((2.0 * clr.RGBpa[0]) + clr.RGBpa[1] +
(clr.RGBpa[2] / 20.0)) - 0.305) * pMod->Nbb;
return clr;
}
static
CAM02COLOR ComputeCorrelates(CAM02COLOR clr, cmsCIECAM02* pMod)
{
cmsFloat64Number a, b, temp, e, t, r2d, d2r;
a = clr.RGBpa[0] - (12.0 * clr.RGBpa[1] / 11.0) + (clr.RGBpa[2] / 11.0);
b = (clr.RGBpa[0] + clr.RGBpa[1] - (2.0 * clr.RGBpa[2])) / 9.0;
r2d = (180.0 / 3.141592654);
if (a == 0) {
if (b == 0) clr.h = 0;
else if (b > 0) clr.h = 90;
else clr.h = 270;
}
else if (a > 0) {
temp = b / a;
if (b > 0) clr.h = (r2d * atan(temp));
else if (b == 0) clr.h = 0;
else clr.h = (r2d * atan(temp)) + 360;
}
else {
temp = b / a;
clr.h = (r2d * atan(temp)) + 180;
}
d2r = (3.141592654 / 180.0);
e = ((12500.0 / 13.0) * pMod->Nc * pMod->Ncb) *
(cos((clr.h * d2r + 2.0)) + 3.8);
if (clr.h < 20.14) {
temp = ((clr.h + 122.47)/1.2) + ((20.14 - clr.h)/0.8);
clr.H = 300 + (100*((clr.h + 122.47)/1.2)) / temp;
}
else if (clr.h < 90.0) {
temp = ((clr.h - 20.14)/0.8) + ((90.00 - clr.h)/0.7);
clr.H = (100*((clr.h - 20.14)/0.8)) / temp;
}
else if (clr.h < 164.25) {
temp = ((clr.h - 90.00)/0.7) + ((164.25 - clr.h)/1.0);
clr.H = 100 + ((100*((clr.h - 90.00)/0.7)) / temp);
}
else if (clr.h < 237.53) {
temp = ((clr.h - 164.25)/1.0) + ((237.53 - clr.h)/1.2);
clr.H = 200 + ((100*((clr.h - 164.25)/1.0)) / temp);
}
else {
temp = ((clr.h - 237.53)/1.2) + ((360 - clr.h + 20.14)/0.8);
clr.H = 300 + ((100*((clr.h - 237.53)/1.2)) / temp);
}
clr.J = 100.0 * pow((clr.A / pMod->adoptedWhite.A),
(pMod->c * pMod->z));
clr.Q = (4.0 / pMod->c) * pow((clr.J / 100.0), 0.5) *
(pMod->adoptedWhite.A + 4.0) * pow(pMod->FL, 0.25);
t = (e * pow(((a * a) + (b * b)), 0.5)) /
(clr.RGBpa[0] + clr.RGBpa[1] +
((21.0 / 20.0) * clr.RGBpa[2]));
clr.C = pow(t, 0.9) * pow((clr.J / 100.0), 0.5) *
pow((1.64 - pow(0.29, pMod->n)), 0.73);
clr.M = clr.C * pow(pMod->FL, 0.25);
clr.s = 100.0 * pow((clr.M / clr.Q), 0.5);
return clr;
}
static
CAM02COLOR InverseCorrelates(CAM02COLOR clr, cmsCIECAM02* pMod)
{
cmsFloat64Number t, e, p1, p2, p3, p4, p5, hr, d2r;
d2r = 3.141592654 / 180.0;
t = pow( (clr.C / (pow((clr.J / 100.0), 0.5) *
(pow((1.64 - pow(0.29, pMod->n)), 0.73)))),
(1.0 / 0.9) );
e = ((12500.0 / 13.0) * pMod->Nc * pMod->Ncb) *
(cos((clr.h * d2r + 2.0)) + 3.8);
clr.A = pMod->adoptedWhite.A * pow(
(clr.J / 100.0),
(1.0 / (pMod->c * pMod->z)));
p1 = e / t;
p2 = (clr.A / pMod->Nbb) + 0.305;
p3 = 21.0 / 20.0;
hr = clr.h * d2r;
if (fabs(sin(hr)) >= fabs(cos(hr))) {
p4 = p1 / sin(hr);
clr.b = (p2 * (2.0 + p3) * (460.0 / 1403.0)) /
(p4 + (2.0 + p3) * (220.0 / 1403.0) *
(cos(hr) / sin(hr)) - (27.0 / 1403.0) +
p3 * (6300.0 / 1403.0));
clr.a = clr.b * (cos(hr) / sin(hr));
}
else {
p5 = p1 / cos(hr);
clr.a = (p2 * (2.0 + p3) * (460.0 / 1403.0)) /
(p5 + (2.0 + p3) * (220.0 / 1403.0) -
((27.0 / 1403.0) - p3 * (6300.0 / 1403.0)) *
(sin(hr) / cos(hr)));
clr.b = clr.a * (sin(hr) / cos(hr));
}
clr.RGBpa[0] = ((460.0 / 1403.0) * p2) +
((451.0 / 1403.0) * clr.a) +
((288.0 / 1403.0) * clr.b);
clr.RGBpa[1] = ((460.0 / 1403.0) * p2) -
((891.0 / 1403.0) * clr.a) -
((261.0 / 1403.0) * clr.b);
clr.RGBpa[2] = ((460.0 / 1403.0) * p2) -
((220.0 / 1403.0) * clr.a) -
((6300.0 / 1403.0) * clr.b);
return clr;
}
static
CAM02COLOR InverseNonlinearity(CAM02COLOR clr, cmsCIECAM02* pMod)
{
cmsUInt32Number i;
cmsFloat64Number c1;
for (i = 0; i < 3; i++) {
if ((clr.RGBpa[i] - 0.1) < 0) c1 = -1;
else c1 = 1;
clr.RGBp[i] = c1 * (100.0 / pMod->FL) *
pow(((27.13 * fabs(clr.RGBpa[i] - 0.1)) /
(400.0 - fabs(clr.RGBpa[i] - 0.1))),
(1.0 / 0.42));
}
return clr;
}
static
CAM02COLOR HPEtoCAT02(CAM02COLOR clr)
{
cmsFloat64Number M[9];
M[0] = (( 0.7328 * 1.910197) + (0.4296 * 0.370950));
M[1] = (( 0.7328 * -1.112124) + (0.4296 * 0.629054));
M[2] = (( 0.7328 * 0.201908) + (0.4296 * 0.000008) - 0.1624);
M[3] = ((-0.7036 * 1.910197) + (1.6975 * 0.370950));
M[4] = ((-0.7036 * -1.112124) + (1.6975 * 0.629054));
M[5] = ((-0.7036 * 0.201908) + (1.6975 * 0.000008) + 0.0061);
M[6] = (( 0.0030 * 1.910197) + (0.0136 * 0.370950));
M[7] = (( 0.0030 * -1.112124) + (0.0136 * 0.629054));
M[8] = (( 0.0030 * 0.201908) + (0.0136 * 0.000008) + 0.9834);;
clr.RGBc[0] = (clr.RGBp[0] * M[0]) + (clr.RGBp[1] * M[1]) + (clr.RGBp[2] * M[2]);
clr.RGBc[1] = (clr.RGBp[0] * M[3]) + (clr.RGBp[1] * M[4]) + (clr.RGBp[2] * M[5]);
clr.RGBc[2] = (clr.RGBp[0] * M[6]) + (clr.RGBp[1] * M[7]) + (clr.RGBp[2] * M[8]);
return clr;
}
static
CAM02COLOR InverseChromaticAdaptation(CAM02COLOR clr, cmsCIECAM02* pMod)
{
cmsUInt32Number i;
for (i = 0; i < 3; i++) {
clr.RGB[i] = clr.RGBc[i] /
((pMod->adoptedWhite.XYZ[1] * pMod->D / pMod->adoptedWhite.RGB[i]) + 1.0 - pMod->D);
}
return clr;
}
static
CAM02COLOR CAT02toXYZ(CAM02COLOR clr)
{
clr.XYZ[0] = (clr.RGB[0] * 1.096124) + (clr.RGB[1] * -0.278869) + (clr.RGB[2] * 0.182745);
clr.XYZ[1] = (clr.RGB[0] * 0.454369) + (clr.RGB[1] * 0.473533) + (clr.RGB[2] * 0.072098);
clr.XYZ[2] = (clr.RGB[0] * -0.009628) + (clr.RGB[1] * -0.005698) + (clr.RGB[2] * 1.015326);
return clr;
}
cmsHANDLE CMSEXPORT cmsCIECAM02Init(cmsContext ContextID, const cmsViewingConditions* pVC)
{
cmsCIECAM02* lpMod;
_cmsAssert(pVC != NULL);
if((lpMod = (cmsCIECAM02*) _cmsMallocZero(ContextID, sizeof(cmsCIECAM02))) == NULL) {
return NULL;
}
lpMod ->ContextID = ContextID;
lpMod ->adoptedWhite.XYZ[0] = pVC ->whitePoint.X;
lpMod ->adoptedWhite.XYZ[1] = pVC ->whitePoint.Y;
lpMod ->adoptedWhite.XYZ[2] = pVC ->whitePoint.Z;
lpMod -> LA = pVC ->La;
lpMod -> Yb = pVC ->Yb;
lpMod -> D = pVC ->D_value;
lpMod -> surround = pVC ->surround;
switch (lpMod -> surround) {
case CUTSHEET_SURROUND:
lpMod->F = 0.8;
lpMod->c = 0.41;
lpMod->Nc = 0.8;
break;
case DARK_SURROUND:
lpMod -> F = 0.8;
lpMod -> c = 0.525;
lpMod -> Nc = 0.8;
break;
case DIM_SURROUND:
lpMod -> F = 0.9;
lpMod -> c = 0.59;
lpMod -> Nc = 0.95;
break;
default:
// Average surround
lpMod -> F = 1.0;
lpMod -> c = 0.69;
lpMod -> Nc = 1.0;
}
lpMod -> n = compute_n(lpMod);
lpMod -> z = compute_z(lpMod);
lpMod -> Nbb = computeNbb(lpMod);
lpMod -> FL = computeFL(lpMod);
if (lpMod -> D == D_CALCULATE) {
lpMod -> D = computeD(lpMod);
}
lpMod -> Ncb = lpMod -> Nbb;
lpMod -> adoptedWhite = XYZtoCAT02(lpMod -> adoptedWhite);
lpMod -> adoptedWhite = ChromaticAdaptation(lpMod -> adoptedWhite, lpMod);
lpMod -> adoptedWhite = CAT02toHPE(lpMod -> adoptedWhite);
lpMod -> adoptedWhite = NonlinearCompression(lpMod -> adoptedWhite, lpMod);
return (cmsHANDLE) lpMod;
}
void CMSEXPORT cmsCIECAM02Done(cmsHANDLE hModel)
{
cmsCIECAM02* lpMod = (cmsCIECAM02*) hModel;
if (lpMod) _cmsFree(lpMod ->ContextID, lpMod);
}
void CMSEXPORT cmsCIECAM02Forward(cmsHANDLE hModel, const cmsCIEXYZ* pIn, cmsJCh* pOut)
{
CAM02COLOR clr;
cmsCIECAM02* lpMod = (cmsCIECAM02*) hModel;
_cmsAssert(lpMod != NULL);
_cmsAssert(pIn != NULL);
_cmsAssert(pOut != NULL);
clr.XYZ[0] = pIn ->X;
clr.XYZ[1] = pIn ->Y;
clr.XYZ[2] = pIn ->Z;
clr = XYZtoCAT02(clr);
clr = ChromaticAdaptation(clr, lpMod);
clr = CAT02toHPE(clr);
clr = NonlinearCompression(clr, lpMod);
clr = ComputeCorrelates(clr, lpMod);
pOut ->J = clr.J;
pOut ->C = clr.C;
pOut ->h = clr.h;
}
void CMSEXPORT cmsCIECAM02Reverse(cmsHANDLE hModel, const cmsJCh* pIn, cmsCIEXYZ* pOut)
{
CAM02COLOR clr;
cmsCIECAM02* lpMod = (cmsCIECAM02*) hModel;
_cmsAssert(lpMod != NULL);
_cmsAssert(pIn != NULL);
_cmsAssert(pOut != NULL);
clr.J = pIn -> J;
clr.C = pIn -> C;
clr.h = pIn -> h;
clr = InverseCorrelates(clr, lpMod);
clr = InverseNonlinearity(clr, lpMod);
clr = HPEtoCAT02(clr);
clr = InverseChromaticAdaptation(clr, lpMod);
clr = CAT02toXYZ(clr);
pOut ->X = clr.XYZ[0];
pOut ->Y = clr.XYZ[1];
pOut ->Z = clr.XYZ[2];
}
|
59 | ./little-cms/src/cmssm.c | //---------------------------------------------------------------------------------
//
// Little Color Management System
// Copyright (c) 1998-2011 Marti Maria Saguer
//
// Permission is hereby granted, free of charge, to any person obtaining
// a copy of this software and associated documentation files (the "Software"),
// to deal in the Software without restriction, including without limitation
// the rights to use, copy, modify, merge, publish, distribute, sublicense,
// and/or sell copies of the Software, and to permit persons to whom the Software
// is furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO
// THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
// LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
// OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
// WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
//
//---------------------------------------------------------------------------------
//
#include "lcms2_internal.h"
// ------------------------------------------------------------------------
// Gamut boundary description by using Jan Morovic's Segment maxima method
// Many thanks to Jan for allowing me to use his algorithm.
// r = C*
// alpha = Hab
// theta = L*
#define SECTORS 16 // number of divisions in alpha and theta
// Spherical coordinates
typedef struct {
cmsFloat64Number r;
cmsFloat64Number alpha;
cmsFloat64Number theta;
} cmsSpherical;
typedef enum {
GP_EMPTY,
GP_SPECIFIED,
GP_MODELED
} GDBPointType;
typedef struct {
GDBPointType Type;
cmsSpherical p; // Keep also alpha & theta of maximum
} cmsGDBPoint;
typedef struct {
cmsContext ContextID;
cmsGDBPoint Gamut[SECTORS][SECTORS];
} cmsGDB;
// A line using the parametric form
// P = a + t*u
typedef struct {
cmsVEC3 a;
cmsVEC3 u;
} cmsLine;
// A plane using the parametric form
// Q = b + r*v + s*w
typedef struct {
cmsVEC3 b;
cmsVEC3 v;
cmsVEC3 w;
} cmsPlane;
// --------------------------------------------------------------------------------------------
// ATAN2() which always returns degree positive numbers
static
cmsFloat64Number _cmsAtan2(cmsFloat64Number y, cmsFloat64Number x)
{
cmsFloat64Number a;
// Deal with undefined case
if (x == 0.0 && y == 0.0) return 0;
a = (atan2(y, x) * 180.0) / M_PI;
while (a < 0) {
a += 360;
}
return a;
}
// Convert to spherical coordinates
static
void ToSpherical(cmsSpherical* sp, const cmsVEC3* v)
{
cmsFloat64Number L, a, b;
L = v ->n[VX];
a = v ->n[VY];
b = v ->n[VZ];
sp ->r = sqrt( L*L + a*a + b*b );
if (sp ->r == 0) {
sp ->alpha = sp ->theta = 0;
return;
}
sp ->alpha = _cmsAtan2(a, b);
sp ->theta = _cmsAtan2(sqrt(a*a + b*b), L);
}
// Convert to cartesian from spherical
static
void ToCartesian(cmsVEC3* v, const cmsSpherical* sp)
{
cmsFloat64Number sin_alpha;
cmsFloat64Number cos_alpha;
cmsFloat64Number sin_theta;
cmsFloat64Number cos_theta;
cmsFloat64Number L, a, b;
sin_alpha = sin((M_PI * sp ->alpha) / 180.0);
cos_alpha = cos((M_PI * sp ->alpha) / 180.0);
sin_theta = sin((M_PI * sp ->theta) / 180.0);
cos_theta = cos((M_PI * sp ->theta) / 180.0);
a = sp ->r * sin_theta * sin_alpha;
b = sp ->r * sin_theta * cos_alpha;
L = sp ->r * cos_theta;
v ->n[VX] = L;
v ->n[VY] = a;
v ->n[VZ] = b;
}
// Quantize sector of a spherical coordinate. Saturate 360, 180 to last sector
// The limits are the centers of each sector, so
static
void QuantizeToSector(const cmsSpherical* sp, int* alpha, int* theta)
{
*alpha = (int) floor(((sp->alpha * (SECTORS)) / 360.0) );
*theta = (int) floor(((sp->theta * (SECTORS)) / 180.0) );
if (*alpha >= SECTORS)
*alpha = SECTORS-1;
if (*theta >= SECTORS)
*theta = SECTORS-1;
}
// Line determined by 2 points
static
void LineOf2Points(cmsLine* line, cmsVEC3* a, cmsVEC3* b)
{
_cmsVEC3init(&line ->a, a ->n[VX], a ->n[VY], a ->n[VZ]);
_cmsVEC3init(&line ->u, b ->n[VX] - a ->n[VX],
b ->n[VY] - a ->n[VY],
b ->n[VZ] - a ->n[VZ]);
}
// Evaluate parametric line
static
void GetPointOfLine(cmsVEC3* p, const cmsLine* line, cmsFloat64Number t)
{
p ->n[VX] = line ->a.n[VX] + t * line->u.n[VX];
p ->n[VY] = line ->a.n[VY] + t * line->u.n[VY];
p ->n[VZ] = line ->a.n[VZ] + t * line->u.n[VZ];
}
/*
Closest point in sector line1 to sector line2 (both are defined as 0 <=t <= 1)
http://softsurfer.com/Archive/algorithm_0106/algorithm_0106.htm
Copyright 2001, softSurfer (www.softsurfer.com)
This code may be freely used and modified for any purpose
providing that this copyright notice is included with it.
SoftSurfer makes no warranty for this code, and cannot be held
liable for any real or imagined damage resulting from its use.
Users of this code must verify correctness for their application.
*/
static
cmsBool ClosestLineToLine(cmsVEC3* r, const cmsLine* line1, const cmsLine* line2)
{
cmsFloat64Number a, b, c, d, e, D;
cmsFloat64Number sc, sN, sD;
cmsFloat64Number tc, tN, tD;
cmsVEC3 w0;
_cmsVEC3minus(&w0, &line1 ->a, &line2 ->a);
a = _cmsVEC3dot(&line1 ->u, &line1 ->u);
b = _cmsVEC3dot(&line1 ->u, &line2 ->u);
c = _cmsVEC3dot(&line2 ->u, &line2 ->u);
d = _cmsVEC3dot(&line1 ->u, &w0);
e = _cmsVEC3dot(&line2 ->u, &w0);
D = a*c - b * b; // Denominator
sD = tD = D; // default sD = D >= 0
if (D < MATRIX_DET_TOLERANCE) { // the lines are almost parallel
sN = 0.0; // force using point P0 on segment S1
sD = 1.0; // to prevent possible division by 0.0 later
tN = e;
tD = c;
}
else { // get the closest points on the infinite lines
sN = (b*e - c*d);
tN = (a*e - b*d);
if (sN < 0.0) { // sc < 0 => the s=0 edge is visible
sN = 0.0;
tN = e;
tD = c;
}
else if (sN > sD) { // sc > 1 => the s=1 edge is visible
sN = sD;
tN = e + b;
tD = c;
}
}
if (tN < 0.0) { // tc < 0 => the t=0 edge is visible
tN = 0.0;
// recompute sc for this edge
if (-d < 0.0)
sN = 0.0;
else if (-d > a)
sN = sD;
else {
sN = -d;
sD = a;
}
}
else if (tN > tD) { // tc > 1 => the t=1 edge is visible
tN = tD;
// recompute sc for this edge
if ((-d + b) < 0.0)
sN = 0;
else if ((-d + b) > a)
sN = sD;
else {
sN = (-d + b);
sD = a;
}
}
// finally do the division to get sc and tc
sc = (fabs(sN) < MATRIX_DET_TOLERANCE ? 0.0 : sN / sD);
tc = (fabs(tN) < MATRIX_DET_TOLERANCE ? 0.0 : tN / tD);
GetPointOfLine(r, line1, sc);
return TRUE;
}
// ------------------------------------------------------------------ Wrapper
// Allocate & free structure
cmsHANDLE CMSEXPORT cmsGBDAlloc(cmsContext ContextID)
{
cmsGDB* gbd = (cmsGDB*) _cmsMallocZero(ContextID, sizeof(cmsGDB));
if (gbd == NULL) return NULL;
gbd -> ContextID = ContextID;
return (cmsHANDLE) gbd;
}
void CMSEXPORT cmsGBDFree(cmsHANDLE hGBD)
{
cmsGDB* gbd = (cmsGDB*) hGBD;
if (hGBD != NULL)
_cmsFree(gbd->ContextID, (void*) gbd);
}
// Auxiliar to retrieve a pointer to the segmentr containing the Lab value
static
cmsGDBPoint* GetPoint(cmsGDB* gbd, const cmsCIELab* Lab, cmsSpherical* sp)
{
cmsVEC3 v;
int alpha, theta;
// Housekeeping
_cmsAssert(gbd != NULL);
_cmsAssert(Lab != NULL);
_cmsAssert(sp != NULL);
// Center L* by substracting half of its domain, that's 50
_cmsVEC3init(&v, Lab ->L - 50.0, Lab ->a, Lab ->b);
// Convert to spherical coordinates
ToSpherical(sp, &v);
if (sp ->r < 0 || sp ->alpha < 0 || sp->theta < 0) {
cmsSignalError(gbd ->ContextID, cmsERROR_RANGE, "spherical value out of range");
return NULL;
}
// On which sector it falls?
QuantizeToSector(sp, &alpha, &theta);
if (alpha < 0 || theta < 0 || alpha >= SECTORS || theta >= SECTORS) {
cmsSignalError(gbd ->ContextID, cmsERROR_RANGE, " quadrant out of range");
return NULL;
}
// Get pointer to the sector
return &gbd ->Gamut[theta][alpha];
}
// Add a point to gamut descriptor. Point to add is in Lab color space.
// GBD is centered on a=b=0 and L*=50
cmsBool CMSEXPORT cmsGDBAddPoint(cmsHANDLE hGBD, const cmsCIELab* Lab)
{
cmsGDB* gbd = (cmsGDB*) hGBD;
cmsGDBPoint* ptr;
cmsSpherical sp;
// Get pointer to the sector
ptr = GetPoint(gbd, Lab, &sp);
if (ptr == NULL) return FALSE;
// If no samples at this sector, add it
if (ptr ->Type == GP_EMPTY) {
ptr -> Type = GP_SPECIFIED;
ptr -> p = sp;
}
else {
// Substitute only if radius is greater
if (sp.r > ptr -> p.r) {
ptr -> Type = GP_SPECIFIED;
ptr -> p = sp;
}
}
return TRUE;
}
// Check if a given point falls inside gamut
cmsBool CMSEXPORT cmsGDBCheckPoint(cmsHANDLE hGBD, const cmsCIELab* Lab)
{
cmsGDB* gbd = (cmsGDB*) hGBD;
cmsGDBPoint* ptr;
cmsSpherical sp;
// Get pointer to the sector
ptr = GetPoint(gbd, Lab, &sp);
if (ptr == NULL) return FALSE;
// If no samples at this sector, return no data
if (ptr ->Type == GP_EMPTY) return FALSE;
// In gamut only if radius is greater
return (sp.r <= ptr -> p.r);
}
// -----------------------------------------------------------------------------------------------------------------------
// Find near sectors. The list of sectors found is returned on Close[].
// The function returns the number of sectors as well.
// 24 9 10 11 12
// 23 8 1 2 13
// 22 7 * 3 14
// 21 6 5 4 15
// 20 19 18 17 16
//
// Those are the relative movements
// {-2,-2}, {-1, -2}, {0, -2}, {+1, -2}, {+2, -2},
// {-2,-1}, {-1, -1}, {0, -1}, {+1, -1}, {+2, -1},
// {-2, 0}, {-1, 0}, {0, 0}, {+1, 0}, {+2, 0},
// {-2,+1}, {-1, +1}, {0, +1}, {+1, +1}, {+2, +1},
// {-2,+2}, {-1, +2}, {0, +2}, {+1, +2}, {+2, +2}};
static
const struct _spiral {
int AdvX, AdvY;
} Spiral[] = { {0, -1}, {+1, -1}, {+1, 0}, {+1, +1}, {0, +1}, {-1, +1},
{-1, 0}, {-1, -1}, {-1, -2}, {0, -2}, {+1, -2}, {+2, -2},
{+2, -1}, {+2, 0}, {+2, +1}, {+2, +2}, {+1, +2}, {0, +2},
{-1, +2}, {-2, +2}, {-2, +1}, {-2, 0}, {-2, -1}, {-2, -2} };
#define NSTEPS (sizeof(Spiral) / sizeof(struct _spiral))
static
int FindNearSectors(cmsGDB* gbd, int alpha, int theta, cmsGDBPoint* Close[])
{
int nSectors = 0;
int a, t;
cmsUInt32Number i;
cmsGDBPoint* pt;
for (i=0; i < NSTEPS; i++) {
a = alpha + Spiral[i].AdvX;
t = theta + Spiral[i].AdvY;
// Cycle at the end
a %= SECTORS;
t %= SECTORS;
// Cycle at the begin
if (a < 0) a = SECTORS + a;
if (t < 0) t = SECTORS + t;
pt = &gbd ->Gamut[t][a];
if (pt -> Type != GP_EMPTY) {
Close[nSectors++] = pt;
}
}
return nSectors;
}
// Interpolate a missing sector. Method identifies whatever this is top, bottom or mid
static
cmsBool InterpolateMissingSector(cmsGDB* gbd, int alpha, int theta)
{
cmsSpherical sp;
cmsVEC3 Lab;
cmsVEC3 Centre;
cmsLine ray;
int nCloseSectors;
cmsGDBPoint* Close[NSTEPS + 1];
cmsSpherical closel, templ;
cmsLine edge;
int k, m;
// Is that point already specified?
if (gbd ->Gamut[theta][alpha].Type != GP_EMPTY) return TRUE;
// Fill close points
nCloseSectors = FindNearSectors(gbd, alpha, theta, Close);
// Find a central point on the sector
sp.alpha = (cmsFloat64Number) ((alpha + 0.5) * 360.0) / (SECTORS);
sp.theta = (cmsFloat64Number) ((theta + 0.5) * 180.0) / (SECTORS);
sp.r = 50.0;
// Convert to Cartesian
ToCartesian(&Lab, &sp);
// Create a ray line from centre to this point
_cmsVEC3init(&Centre, 50.0, 0, 0);
LineOf2Points(&ray, &Lab, &Centre);
// For all close sectors
closel.r = 0.0;
closel.alpha = 0;
closel.theta = 0;
for (k=0; k < nCloseSectors; k++) {
for(m = k+1; m < nCloseSectors; m++) {
cmsVEC3 temp, a1, a2;
// A line from sector to sector
ToCartesian(&a1, &Close[k]->p);
ToCartesian(&a2, &Close[m]->p);
LineOf2Points(&edge, &a1, &a2);
// Find a line
ClosestLineToLine(&temp, &ray, &edge);
// Convert to spherical
ToSpherical(&templ, &temp);
if ( templ.r > closel.r &&
templ.theta >= (theta*180.0/SECTORS) &&
templ.theta <= ((theta+1)*180.0/SECTORS) &&
templ.alpha >= (alpha*360.0/SECTORS) &&
templ.alpha <= ((alpha+1)*360.0/SECTORS)) {
closel = templ;
}
}
}
gbd ->Gamut[theta][alpha].p = closel;
gbd ->Gamut[theta][alpha].Type = GP_MODELED;
return TRUE;
}
// Interpolate missing parts. The algorithm fist computes slices at
// theta=0 and theta=Max.
cmsBool CMSEXPORT cmsGDBCompute(cmsHANDLE hGBD, cmsUInt32Number dwFlags)
{
int alpha, theta;
cmsGDB* gbd = (cmsGDB*) hGBD;
_cmsAssert(hGBD != NULL);
// Interpolate black
for (alpha = 0; alpha < SECTORS; alpha++) {
if (!InterpolateMissingSector(gbd, alpha, 0)) return FALSE;
}
// Interpolate white
for (alpha = 0; alpha < SECTORS; alpha++) {
if (!InterpolateMissingSector(gbd, alpha, SECTORS-1)) return FALSE;
}
// Interpolate Mid
for (theta = 1; theta < SECTORS; theta++) {
for (alpha = 0; alpha < SECTORS; alpha++) {
if (!InterpolateMissingSector(gbd, alpha, theta)) return FALSE;
}
}
// Done
return TRUE;
cmsUNUSED_PARAMETER(dwFlags);
}
// --------------------------------------------------------------------------------------------------------
// Great for debug, but not suitable for real use
#if 0
cmsBool cmsGBDdumpVRML(cmsHANDLE hGBD, const char* fname)
{
FILE* fp;
int i, j;
cmsGDB* gbd = (cmsGDB*) hGBD;
cmsGDBPoint* pt;
fp = fopen (fname, "wt");
if (fp == NULL)
return FALSE;
fprintf (fp, "#VRML V2.0 utf8\n");
// set the viewing orientation and distance
fprintf (fp, "DEF CamTest Group {\n");
fprintf (fp, "\tchildren [\n");
fprintf (fp, "\t\tDEF Cameras Group {\n");
fprintf (fp, "\t\t\tchildren [\n");
fprintf (fp, "\t\t\t\tDEF DefaultView Viewpoint {\n");
fprintf (fp, "\t\t\t\t\tposition 0 0 340\n");
fprintf (fp, "\t\t\t\t\torientation 0 0 1 0\n");
fprintf (fp, "\t\t\t\t\tdescription \"default view\"\n");
fprintf (fp, "\t\t\t\t}\n");
fprintf (fp, "\t\t\t]\n");
fprintf (fp, "\t\t},\n");
fprintf (fp, "\t]\n");
fprintf (fp, "}\n");
// Output the background stuff
fprintf (fp, "Background {\n");
fprintf (fp, "\tskyColor [\n");
fprintf (fp, "\t\t.5 .5 .5\n");
fprintf (fp, "\t]\n");
fprintf (fp, "}\n");
// Output the shape stuff
fprintf (fp, "Transform {\n");
fprintf (fp, "\tscale .3 .3 .3\n");
fprintf (fp, "\tchildren [\n");
// Draw the axes as a shape:
fprintf (fp, "\t\tShape {\n");
fprintf (fp, "\t\t\tappearance Appearance {\n");
fprintf (fp, "\t\t\t\tmaterial Material {\n");
fprintf (fp, "\t\t\t\t\tdiffuseColor 0 0.8 0\n");
fprintf (fp, "\t\t\t\t\temissiveColor 1.0 1.0 1.0\n");
fprintf (fp, "\t\t\t\t\tshininess 0.8\n");
fprintf (fp, "\t\t\t\t}\n");
fprintf (fp, "\t\t\t}\n");
fprintf (fp, "\t\t\tgeometry IndexedLineSet {\n");
fprintf (fp, "\t\t\t\tcoord Coordinate {\n");
fprintf (fp, "\t\t\t\t\tpoint [\n");
fprintf (fp, "\t\t\t\t\t0.0 0.0 0.0,\n");
fprintf (fp, "\t\t\t\t\t%f 0.0 0.0,\n", 255.0);
fprintf (fp, "\t\t\t\t\t0.0 %f 0.0,\n", 255.0);
fprintf (fp, "\t\t\t\t\t0.0 0.0 %f]\n", 255.0);
fprintf (fp, "\t\t\t\t}\n");
fprintf (fp, "\t\t\t\tcoordIndex [\n");
fprintf (fp, "\t\t\t\t\t0, 1, -1\n");
fprintf (fp, "\t\t\t\t\t0, 2, -1\n");
fprintf (fp, "\t\t\t\t\t0, 3, -1]\n");
fprintf (fp, "\t\t\t}\n");
fprintf (fp, "\t\t}\n");
fprintf (fp, "\t\tShape {\n");
fprintf (fp, "\t\t\tappearance Appearance {\n");
fprintf (fp, "\t\t\t\tmaterial Material {\n");
fprintf (fp, "\t\t\t\t\tdiffuseColor 0 0.8 0\n");
fprintf (fp, "\t\t\t\t\temissiveColor 1 1 1\n");
fprintf (fp, "\t\t\t\t\tshininess 0.8\n");
fprintf (fp, "\t\t\t\t}\n");
fprintf (fp, "\t\t\t}\n");
fprintf (fp, "\t\t\tgeometry PointSet {\n");
// fill in the points here
fprintf (fp, "\t\t\t\tcoord Coordinate {\n");
fprintf (fp, "\t\t\t\t\tpoint [\n");
// We need to transverse all gamut hull.
for (i=0; i < SECTORS; i++)
for (j=0; j < SECTORS; j++) {
cmsVEC3 v;
pt = &gbd ->Gamut[i][j];
ToCartesian(&v, &pt ->p);
fprintf (fp, "\t\t\t\t\t%g %g %g", v.n[0]+50, v.n[1], v.n[2]);
if ((j == SECTORS - 1) && (i == SECTORS - 1))
fprintf (fp, "]\n");
else
fprintf (fp, ",\n");
}
fprintf (fp, "\t\t\t\t}\n");
// fill in the face colors
fprintf (fp, "\t\t\t\tcolor Color {\n");
fprintf (fp, "\t\t\t\t\tcolor [\n");
for (i=0; i < SECTORS; i++)
for (j=0; j < SECTORS; j++) {
cmsVEC3 v;
pt = &gbd ->Gamut[i][j];
ToCartesian(&v, &pt ->p);
if (pt ->Type == GP_EMPTY)
fprintf (fp, "\t\t\t\t\t%g %g %g", 0.0, 0.0, 0.0);
else
if (pt ->Type == GP_MODELED)
fprintf (fp, "\t\t\t\t\t%g %g %g", 1.0, .5, .5);
else {
fprintf (fp, "\t\t\t\t\t%g %g %g", 1.0, 1.0, 1.0);
}
if ((j == SECTORS - 1) && (i == SECTORS - 1))
fprintf (fp, "]\n");
else
fprintf (fp, ",\n");
}
fprintf (fp, "\t\t\t}\n");
fprintf (fp, "\t\t\t}\n");
fprintf (fp, "\t\t}\n");
fprintf (fp, "\t]\n");
fprintf (fp, "}\n");
fclose (fp);
return TRUE;
}
#endif
|
60 | ./little-cms/src/cmsvirt.c | //---------------------------------------------------------------------------------
//
// Little Color Management System
// Copyright (c) 1998-2011 Marti Maria Saguer
//
// Permission is hereby granted, free of charge, to any person obtaining
// a copy of this software and associated documentation files (the "Software"),
// to deal in the Software without restriction, including without limitation
// the rights to use, copy, modify, merge, publish, distribute, sublicense,
// and/or sell copies of the Software, and to permit persons to whom the Software
// is furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO
// THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
// LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
// OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
// WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
//
//---------------------------------------------------------------------------------
//
#include "lcms2_internal.h"
// Virtual (built-in) profiles
// -----------------------------------------------------------------------------------
static
cmsBool SetTextTags(cmsHPROFILE hProfile, const wchar_t* Description)
{
cmsMLU *DescriptionMLU, *CopyrightMLU;
cmsBool rc = FALSE;
cmsContext ContextID = cmsGetProfileContextID(hProfile);
DescriptionMLU = cmsMLUalloc(ContextID, 1);
CopyrightMLU = cmsMLUalloc(ContextID, 1);
if (DescriptionMLU == NULL || CopyrightMLU == NULL) goto Error;
if (!cmsMLUsetWide(DescriptionMLU, "en", "US", Description)) goto Error;
if (!cmsMLUsetWide(CopyrightMLU, "en", "US", L"No copyright, use freely")) goto Error;
if (!cmsWriteTag(hProfile, cmsSigProfileDescriptionTag, DescriptionMLU)) goto Error;
if (!cmsWriteTag(hProfile, cmsSigCopyrightTag, CopyrightMLU)) goto Error;
rc = TRUE;
Error:
if (DescriptionMLU)
cmsMLUfree(DescriptionMLU);
if (CopyrightMLU)
cmsMLUfree(CopyrightMLU);
return rc;
}
static
cmsBool SetSeqDescTag(cmsHPROFILE hProfile, const char* Model)
{
cmsBool rc = FALSE;
cmsContext ContextID = cmsGetProfileContextID(hProfile);
cmsSEQ* Seq = cmsAllocProfileSequenceDescription(ContextID, 1);
if (Seq == NULL) return FALSE;
Seq->seq[0].deviceMfg = (cmsSignature) 0;
Seq->seq[0].deviceModel = (cmsSignature) 0;
#ifdef CMS_DONT_USE_INT64
Seq->seq[0].attributes[0] = 0;
Seq->seq[0].attributes[1] = 0;
#else
Seq->seq[0].attributes = 0;
#endif
Seq->seq[0].technology = (cmsTechnologySignature) 0;
cmsMLUsetASCII( Seq->seq[0].Manufacturer, cmsNoLanguage, cmsNoCountry, "Little CMS");
cmsMLUsetASCII( Seq->seq[0].Model, cmsNoLanguage, cmsNoCountry, Model);
if (!_cmsWriteProfileSequence(hProfile, Seq)) goto Error;
rc = TRUE;
Error:
if (Seq)
cmsFreeProfileSequenceDescription(Seq);
return rc;
}
// This function creates a profile based on White point, primaries and
// transfer functions.
cmsHPROFILE CMSEXPORT cmsCreateRGBProfileTHR(cmsContext ContextID,
const cmsCIExyY* WhitePoint,
const cmsCIExyYTRIPLE* Primaries,
cmsToneCurve* const TransferFunction[3])
{
cmsHPROFILE hICC;
cmsMAT3 MColorants;
cmsCIEXYZTRIPLE Colorants;
cmsCIExyY MaxWhite;
cmsMAT3 CHAD;
cmsCIEXYZ WhitePointXYZ;
hICC = cmsCreateProfilePlaceholder(ContextID);
if (!hICC) // can't allocate
return NULL;
cmsSetProfileVersion(hICC, 4.3);
cmsSetDeviceClass(hICC, cmsSigDisplayClass);
cmsSetColorSpace(hICC, cmsSigRgbData);
cmsSetPCS(hICC, cmsSigXYZData);
cmsSetHeaderRenderingIntent(hICC, INTENT_PERCEPTUAL);
// Implement profile using following tags:
//
// 1 cmsSigProfileDescriptionTag
// 2 cmsSigMediaWhitePointTag
// 3 cmsSigRedColorantTag
// 4 cmsSigGreenColorantTag
// 5 cmsSigBlueColorantTag
// 6 cmsSigRedTRCTag
// 7 cmsSigGreenTRCTag
// 8 cmsSigBlueTRCTag
// 9 Chromatic adaptation Tag
// This conforms a standard RGB DisplayProfile as says ICC, and then I add (As per addendum II)
// 10 cmsSigChromaticityTag
if (!SetTextTags(hICC, L"RGB built-in")) goto Error;
if (WhitePoint) {
if (!cmsWriteTag(hICC, cmsSigMediaWhitePointTag, cmsD50_XYZ())) goto Error;
cmsxyY2XYZ(&WhitePointXYZ, WhitePoint);
_cmsAdaptationMatrix(&CHAD, NULL, &WhitePointXYZ, cmsD50_XYZ());
// This is a V4 tag, but many CMM does read and understand it no matter which version
if (!cmsWriteTag(hICC, cmsSigChromaticAdaptationTag, (void*) &CHAD)) goto Error;
}
if (WhitePoint && Primaries) {
MaxWhite.x = WhitePoint -> x;
MaxWhite.y = WhitePoint -> y;
MaxWhite.Y = 1.0;
if (!_cmsBuildRGB2XYZtransferMatrix(&MColorants, &MaxWhite, Primaries)) goto Error;
Colorants.Red.X = MColorants.v[0].n[0];
Colorants.Red.Y = MColorants.v[1].n[0];
Colorants.Red.Z = MColorants.v[2].n[0];
Colorants.Green.X = MColorants.v[0].n[1];
Colorants.Green.Y = MColorants.v[1].n[1];
Colorants.Green.Z = MColorants.v[2].n[1];
Colorants.Blue.X = MColorants.v[0].n[2];
Colorants.Blue.Y = MColorants.v[1].n[2];
Colorants.Blue.Z = MColorants.v[2].n[2];
if (!cmsWriteTag(hICC, cmsSigRedColorantTag, (void*) &Colorants.Red)) goto Error;
if (!cmsWriteTag(hICC, cmsSigBlueColorantTag, (void*) &Colorants.Blue)) goto Error;
if (!cmsWriteTag(hICC, cmsSigGreenColorantTag, (void*) &Colorants.Green)) goto Error;
}
if (TransferFunction) {
// Tries to minimize space. Thanks to Richard Hughes for this nice idea
if (!cmsWriteTag(hICC, cmsSigRedTRCTag, (void*) TransferFunction[0])) goto Error;
if (TransferFunction[1] == TransferFunction[0]) {
if (!cmsLinkTag (hICC, cmsSigGreenTRCTag, cmsSigRedTRCTag)) goto Error;
} else {
if (!cmsWriteTag(hICC, cmsSigGreenTRCTag, (void*) TransferFunction[1])) goto Error;
}
if (TransferFunction[2] == TransferFunction[0]) {
if (!cmsLinkTag (hICC, cmsSigBlueTRCTag, cmsSigRedTRCTag)) goto Error;
} else {
if (!cmsWriteTag(hICC, cmsSigBlueTRCTag, (void*) TransferFunction[2])) goto Error;
}
}
if (Primaries) {
if (!cmsWriteTag(hICC, cmsSigChromaticityTag, (void*) Primaries)) goto Error;
}
return hICC;
Error:
if (hICC)
cmsCloseProfile(hICC);
return NULL;
}
cmsHPROFILE CMSEXPORT cmsCreateRGBProfile(const cmsCIExyY* WhitePoint,
const cmsCIExyYTRIPLE* Primaries,
cmsToneCurve* const TransferFunction[3])
{
return cmsCreateRGBProfileTHR(NULL, WhitePoint, Primaries, TransferFunction);
}
// This function creates a profile based on White point and transfer function.
cmsHPROFILE CMSEXPORT cmsCreateGrayProfileTHR(cmsContext ContextID,
const cmsCIExyY* WhitePoint,
const cmsToneCurve* TransferFunction)
{
cmsHPROFILE hICC;
cmsCIEXYZ tmp;
hICC = cmsCreateProfilePlaceholder(ContextID);
if (!hICC) // can't allocate
return NULL;
cmsSetProfileVersion(hICC, 4.3);
cmsSetDeviceClass(hICC, cmsSigDisplayClass);
cmsSetColorSpace(hICC, cmsSigGrayData);
cmsSetPCS(hICC, cmsSigXYZData);
cmsSetHeaderRenderingIntent(hICC, INTENT_PERCEPTUAL);
// Implement profile using following tags:
//
// 1 cmsSigProfileDescriptionTag
// 2 cmsSigMediaWhitePointTag
// 3 cmsSigGrayTRCTag
// This conforms a standard Gray DisplayProfile
// Fill-in the tags
if (!SetTextTags(hICC, L"gray built-in")) goto Error;
if (WhitePoint) {
cmsxyY2XYZ(&tmp, WhitePoint);
if (!cmsWriteTag(hICC, cmsSigMediaWhitePointTag, (void*) &tmp)) goto Error;
}
if (TransferFunction) {
if (!cmsWriteTag(hICC, cmsSigGrayTRCTag, (void*) TransferFunction)) goto Error;
}
return hICC;
Error:
if (hICC)
cmsCloseProfile(hICC);
return NULL;
}
cmsHPROFILE CMSEXPORT cmsCreateGrayProfile(const cmsCIExyY* WhitePoint,
const cmsToneCurve* TransferFunction)
{
return cmsCreateGrayProfileTHR(NULL, WhitePoint, TransferFunction);
}
// This is a devicelink operating in the target colorspace with as many transfer functions as components
cmsHPROFILE CMSEXPORT cmsCreateLinearizationDeviceLinkTHR(cmsContext ContextID,
cmsColorSpaceSignature ColorSpace,
cmsToneCurve* const TransferFunctions[])
{
cmsHPROFILE hICC;
cmsPipeline* Pipeline;
int nChannels;
hICC = cmsCreateProfilePlaceholder(ContextID);
if (!hICC)
return NULL;
cmsSetProfileVersion(hICC, 4.3);
cmsSetDeviceClass(hICC, cmsSigLinkClass);
cmsSetColorSpace(hICC, ColorSpace);
cmsSetPCS(hICC, ColorSpace);
cmsSetHeaderRenderingIntent(hICC, INTENT_PERCEPTUAL);
// Set up channels
nChannels = cmsChannelsOf(ColorSpace);
// Creates a Pipeline with prelinearization step only
Pipeline = cmsPipelineAlloc(ContextID, nChannels, nChannels);
if (Pipeline == NULL) goto Error;
// Copy tables to Pipeline
if (!cmsPipelineInsertStage(Pipeline, cmsAT_BEGIN, cmsStageAllocToneCurves(ContextID, nChannels, TransferFunctions)))
goto Error;
// Create tags
if (!SetTextTags(hICC, L"Linearization built-in")) goto Error;
if (!cmsWriteTag(hICC, cmsSigAToB0Tag, (void*) Pipeline)) goto Error;
if (!SetSeqDescTag(hICC, "Linearization built-in")) goto Error;
// Pipeline is already on virtual profile
cmsPipelineFree(Pipeline);
// Ok, done
return hICC;
Error:
cmsPipelineFree(Pipeline);
if (hICC)
cmsCloseProfile(hICC);
return NULL;
}
cmsHPROFILE CMSEXPORT cmsCreateLinearizationDeviceLink(cmsColorSpaceSignature ColorSpace,
cmsToneCurve* const TransferFunctions[])
{
return cmsCreateLinearizationDeviceLinkTHR(NULL, ColorSpace, TransferFunctions);
}
// Ink-limiting algorithm
//
// Sum = C + M + Y + K
// If Sum > InkLimit
// Ratio= 1 - (Sum - InkLimit) / (C + M + Y)
// if Ratio <0
// Ratio=0
// endif
// Else
// Ratio=1
// endif
//
// C = Ratio * C
// M = Ratio * M
// Y = Ratio * Y
// K: Does not change
static
int InkLimitingSampler(register const cmsUInt16Number In[], register cmsUInt16Number Out[], register void* Cargo)
{
cmsFloat64Number InkLimit = *(cmsFloat64Number *) Cargo;
cmsFloat64Number SumCMY, SumCMYK, Ratio;
InkLimit = (InkLimit * 655.35);
SumCMY = In[0] + In[1] + In[2];
SumCMYK = SumCMY + In[3];
if (SumCMYK > InkLimit) {
Ratio = 1 - ((SumCMYK - InkLimit) / SumCMY);
if (Ratio < 0)
Ratio = 0;
}
else Ratio = 1;
Out[0] = _cmsQuickSaturateWord(In[0] * Ratio); // C
Out[1] = _cmsQuickSaturateWord(In[1] * Ratio); // M
Out[2] = _cmsQuickSaturateWord(In[2] * Ratio); // Y
Out[3] = In[3]; // K (untouched)
return TRUE;
}
// This is a devicelink operating in CMYK for ink-limiting
cmsHPROFILE CMSEXPORT cmsCreateInkLimitingDeviceLinkTHR(cmsContext ContextID,
cmsColorSpaceSignature ColorSpace,
cmsFloat64Number Limit)
{
cmsHPROFILE hICC;
cmsPipeline* LUT;
cmsStage* CLUT;
int nChannels;
if (ColorSpace != cmsSigCmykData) {
cmsSignalError(ContextID, cmsERROR_COLORSPACE_CHECK, "InkLimiting: Only CMYK currently supported");
return NULL;
}
if (Limit < 0.0 || Limit > 400) {
cmsSignalError(ContextID, cmsERROR_RANGE, "InkLimiting: Limit should be between 0..400");
if (Limit < 0) Limit = 0;
if (Limit > 400) Limit = 400;
}
hICC = cmsCreateProfilePlaceholder(ContextID);
if (!hICC) // can't allocate
return NULL;
cmsSetProfileVersion(hICC, 4.3);
cmsSetDeviceClass(hICC, cmsSigLinkClass);
cmsSetColorSpace(hICC, ColorSpace);
cmsSetPCS(hICC, ColorSpace);
cmsSetHeaderRenderingIntent(hICC, INTENT_PERCEPTUAL);
// Creates a Pipeline with 3D grid only
LUT = cmsPipelineAlloc(ContextID, 4, 4);
if (LUT == NULL) goto Error;
nChannels = cmsChannelsOf(ColorSpace);
CLUT = cmsStageAllocCLut16bit(ContextID, 17, nChannels, nChannels, NULL);
if (CLUT == NULL) goto Error;
if (!cmsStageSampleCLut16bit(CLUT, InkLimitingSampler, (void*) &Limit, 0)) goto Error;
if (!cmsPipelineInsertStage(LUT, cmsAT_BEGIN, _cmsStageAllocIdentityCurves(ContextID, nChannels)) ||
!cmsPipelineInsertStage(LUT, cmsAT_END, CLUT) ||
!cmsPipelineInsertStage(LUT, cmsAT_END, _cmsStageAllocIdentityCurves(ContextID, nChannels)))
goto Error;
// Create tags
if (!SetTextTags(hICC, L"ink-limiting built-in")) goto Error;
if (!cmsWriteTag(hICC, cmsSigAToB0Tag, (void*) LUT)) goto Error;
if (!SetSeqDescTag(hICC, "ink-limiting built-in")) goto Error;
// cmsPipeline is already on virtual profile
cmsPipelineFree(LUT);
// Ok, done
return hICC;
Error:
if (LUT != NULL)
cmsPipelineFree(LUT);
if (hICC != NULL)
cmsCloseProfile(hICC);
return NULL;
}
cmsHPROFILE CMSEXPORT cmsCreateInkLimitingDeviceLink(cmsColorSpaceSignature ColorSpace, cmsFloat64Number Limit)
{
return cmsCreateInkLimitingDeviceLinkTHR(NULL, ColorSpace, Limit);
}
// Creates a fake Lab identity.
cmsHPROFILE CMSEXPORT cmsCreateLab2ProfileTHR(cmsContext ContextID, const cmsCIExyY* WhitePoint)
{
cmsHPROFILE hProfile;
cmsPipeline* LUT = NULL;
hProfile = cmsCreateRGBProfileTHR(ContextID, WhitePoint == NULL ? cmsD50_xyY() : WhitePoint, NULL, NULL);
if (hProfile == NULL) return NULL;
cmsSetProfileVersion(hProfile, 2.1);
cmsSetDeviceClass(hProfile, cmsSigAbstractClass);
cmsSetColorSpace(hProfile, cmsSigLabData);
cmsSetPCS(hProfile, cmsSigLabData);
if (!SetTextTags(hProfile, L"Lab identity built-in")) return NULL;
// An identity LUT is all we need
LUT = cmsPipelineAlloc(ContextID, 3, 3);
if (LUT == NULL) goto Error;
if (!cmsPipelineInsertStage(LUT, cmsAT_BEGIN, _cmsStageAllocIdentityCLut(ContextID, 3)))
goto Error;
if (!cmsWriteTag(hProfile, cmsSigAToB0Tag, LUT)) goto Error;
cmsPipelineFree(LUT);
return hProfile;
Error:
if (LUT != NULL)
cmsPipelineFree(LUT);
if (hProfile != NULL)
cmsCloseProfile(hProfile);
return NULL;
}
cmsHPROFILE CMSEXPORT cmsCreateLab2Profile(const cmsCIExyY* WhitePoint)
{
return cmsCreateLab2ProfileTHR(NULL, WhitePoint);
}
// Creates a fake Lab V4 identity.
cmsHPROFILE CMSEXPORT cmsCreateLab4ProfileTHR(cmsContext ContextID, const cmsCIExyY* WhitePoint)
{
cmsHPROFILE hProfile;
cmsPipeline* LUT = NULL;
hProfile = cmsCreateRGBProfileTHR(ContextID, WhitePoint == NULL ? cmsD50_xyY() : WhitePoint, NULL, NULL);
if (hProfile == NULL) return NULL;
cmsSetProfileVersion(hProfile, 4.3);
cmsSetDeviceClass(hProfile, cmsSigAbstractClass);
cmsSetColorSpace(hProfile, cmsSigLabData);
cmsSetPCS(hProfile, cmsSigLabData);
if (!SetTextTags(hProfile, L"Lab identity built-in")) goto Error;
// An empty LUTs is all we need
LUT = cmsPipelineAlloc(ContextID, 3, 3);
if (LUT == NULL) goto Error;
if (!cmsPipelineInsertStage(LUT, cmsAT_BEGIN, _cmsStageAllocIdentityCurves(ContextID, 3)))
goto Error;
if (!cmsWriteTag(hProfile, cmsSigAToB0Tag, LUT)) goto Error;
cmsPipelineFree(LUT);
return hProfile;
Error:
if (LUT != NULL)
cmsPipelineFree(LUT);
if (hProfile != NULL)
cmsCloseProfile(hProfile);
return NULL;
}
cmsHPROFILE CMSEXPORT cmsCreateLab4Profile(const cmsCIExyY* WhitePoint)
{
return cmsCreateLab4ProfileTHR(NULL, WhitePoint);
}
// Creates a fake XYZ identity
cmsHPROFILE CMSEXPORT cmsCreateXYZProfileTHR(cmsContext ContextID)
{
cmsHPROFILE hProfile;
cmsPipeline* LUT = NULL;
hProfile = cmsCreateRGBProfileTHR(ContextID, cmsD50_xyY(), NULL, NULL);
if (hProfile == NULL) return NULL;
cmsSetProfileVersion(hProfile, 4.3);
cmsSetDeviceClass(hProfile, cmsSigAbstractClass);
cmsSetColorSpace(hProfile, cmsSigXYZData);
cmsSetPCS(hProfile, cmsSigXYZData);
if (!SetTextTags(hProfile, L"XYZ identity built-in")) goto Error;
// An identity LUT is all we need
LUT = cmsPipelineAlloc(ContextID, 3, 3);
if (LUT == NULL) goto Error;
if (!cmsPipelineInsertStage(LUT, cmsAT_BEGIN, _cmsStageAllocIdentityCurves(ContextID, 3)))
goto Error;
if (!cmsWriteTag(hProfile, cmsSigAToB0Tag, LUT)) goto Error;
cmsPipelineFree(LUT);
return hProfile;
Error:
if (LUT != NULL)
cmsPipelineFree(LUT);
if (hProfile != NULL)
cmsCloseProfile(hProfile);
return NULL;
}
cmsHPROFILE CMSEXPORT cmsCreateXYZProfile(void)
{
return cmsCreateXYZProfileTHR(NULL);
}
//sRGB Curves are defined by:
//
//If RÆsRGB,GÆsRGB, BÆsRGB < 0.04045
//
// R = RÆsRGB / 12.92
// G = GÆsRGB / 12.92
// B = BÆsRGB / 12.92
//
//
//else if RÆsRGB,GÆsRGB, BÆsRGB >= 0.04045
//
// R = ((RÆsRGB + 0.055) / 1.055)^2.4
// G = ((GÆsRGB + 0.055) / 1.055)^2.4
// B = ((BÆsRGB + 0.055) / 1.055)^2.4
static
cmsToneCurve* Build_sRGBGamma(cmsContext ContextID)
{
cmsFloat64Number Parameters[5];
Parameters[0] = 2.4;
Parameters[1] = 1. / 1.055;
Parameters[2] = 0.055 / 1.055;
Parameters[3] = 1. / 12.92;
Parameters[4] = 0.04045;
return cmsBuildParametricToneCurve(ContextID, 4, Parameters);
}
// Create the ICC virtual profile for sRGB space
cmsHPROFILE CMSEXPORT cmsCreate_sRGBProfileTHR(cmsContext ContextID)
{
cmsCIExyY D65;
cmsCIExyYTRIPLE Rec709Primaries = {
{0.6400, 0.3300, 1.0},
{0.3000, 0.6000, 1.0},
{0.1500, 0.0600, 1.0}
};
cmsToneCurve* Gamma22[3];
cmsHPROFILE hsRGB;
cmsWhitePointFromTemp(&D65, 6504);
Gamma22[0] = Gamma22[1] = Gamma22[2] = Build_sRGBGamma(ContextID);
if (Gamma22[0] == NULL) return NULL;
hsRGB = cmsCreateRGBProfileTHR(ContextID, &D65, &Rec709Primaries, Gamma22);
cmsFreeToneCurve(Gamma22[0]);
if (hsRGB == NULL) return NULL;
if (!SetTextTags(hsRGB, L"sRGB built-in")) {
cmsCloseProfile(hsRGB);
return NULL;
}
return hsRGB;
}
cmsHPROFILE CMSEXPORT cmsCreate_sRGBProfile(void)
{
return cmsCreate_sRGBProfileTHR(NULL);
}
typedef struct {
cmsFloat64Number Brightness;
cmsFloat64Number Contrast;
cmsFloat64Number Hue;
cmsFloat64Number Saturation;
cmsCIEXYZ WPsrc, WPdest;
} BCHSWADJUSTS, *LPBCHSWADJUSTS;
static
int bchswSampler(register const cmsUInt16Number In[], register cmsUInt16Number Out[], register void* Cargo)
{
cmsCIELab LabIn, LabOut;
cmsCIELCh LChIn, LChOut;
cmsCIEXYZ XYZ;
LPBCHSWADJUSTS bchsw = (LPBCHSWADJUSTS) Cargo;
cmsLabEncoded2Float(&LabIn, In);
cmsLab2LCh(&LChIn, &LabIn);
// Do some adjusts on LCh
LChOut.L = LChIn.L * bchsw ->Contrast + bchsw ->Brightness;
LChOut.C = LChIn.C + bchsw -> Saturation;
LChOut.h = LChIn.h + bchsw -> Hue;
cmsLCh2Lab(&LabOut, &LChOut);
// Move white point in Lab
cmsLab2XYZ(&bchsw ->WPsrc, &XYZ, &LabOut);
cmsXYZ2Lab(&bchsw ->WPdest, &LabOut, &XYZ);
// Back to encoded
cmsFloat2LabEncoded(Out, &LabOut);
return TRUE;
}
// Creates an abstract profile operating in Lab space for Brightness,
// contrast, Saturation and white point displacement
cmsHPROFILE CMSEXPORT cmsCreateBCHSWabstractProfileTHR(cmsContext ContextID,
int nLUTPoints,
cmsFloat64Number Bright,
cmsFloat64Number Contrast,
cmsFloat64Number Hue,
cmsFloat64Number Saturation,
int TempSrc,
int TempDest)
{
cmsHPROFILE hICC;
cmsPipeline* Pipeline;
BCHSWADJUSTS bchsw;
cmsCIExyY WhitePnt;
cmsStage* CLUT;
cmsUInt32Number Dimensions[MAX_INPUT_DIMENSIONS];
int i;
bchsw.Brightness = Bright;
bchsw.Contrast = Contrast;
bchsw.Hue = Hue;
bchsw.Saturation = Saturation;
cmsWhitePointFromTemp(&WhitePnt, TempSrc );
cmsxyY2XYZ(&bchsw.WPsrc, &WhitePnt);
cmsWhitePointFromTemp(&WhitePnt, TempDest);
cmsxyY2XYZ(&bchsw.WPdest, &WhitePnt);
hICC = cmsCreateProfilePlaceholder(ContextID);
if (!hICC) // can't allocate
return NULL;
cmsSetDeviceClass(hICC, cmsSigAbstractClass);
cmsSetColorSpace(hICC, cmsSigLabData);
cmsSetPCS(hICC, cmsSigLabData);
cmsSetHeaderRenderingIntent(hICC, INTENT_PERCEPTUAL);
// Creates a Pipeline with 3D grid only
Pipeline = cmsPipelineAlloc(ContextID, 3, 3);
if (Pipeline == NULL) {
cmsCloseProfile(hICC);
return NULL;
}
for (i=0; i < MAX_INPUT_DIMENSIONS; i++) Dimensions[i] = nLUTPoints;
CLUT = cmsStageAllocCLut16bitGranular(ContextID, Dimensions, 3, 3, NULL);
if (CLUT == NULL) return NULL;
if (!cmsStageSampleCLut16bit(CLUT, bchswSampler, (void*) &bchsw, 0)) {
// Shouldn't reach here
goto Error;
}
if (!cmsPipelineInsertStage(Pipeline, cmsAT_END, CLUT)) {
goto Error;
}
// Create tags
if (!SetTextTags(hICC, L"BCHS built-in")) return NULL;
cmsWriteTag(hICC, cmsSigMediaWhitePointTag, (void*) cmsD50_XYZ());
cmsWriteTag(hICC, cmsSigAToB0Tag, (void*) Pipeline);
// Pipeline is already on virtual profile
cmsPipelineFree(Pipeline);
// Ok, done
return hICC;
Error:
cmsPipelineFree(Pipeline);
cmsCloseProfile(hICC);
return NULL;
}
CMSAPI cmsHPROFILE CMSEXPORT cmsCreateBCHSWabstractProfile(int nLUTPoints,
cmsFloat64Number Bright,
cmsFloat64Number Contrast,
cmsFloat64Number Hue,
cmsFloat64Number Saturation,
int TempSrc,
int TempDest)
{
return cmsCreateBCHSWabstractProfileTHR(NULL, nLUTPoints, Bright, Contrast, Hue, Saturation, TempSrc, TempDest);
}
// Creates a fake NULL profile. This profile return 1 channel as always 0.
// Is useful only for gamut checking tricks
cmsHPROFILE CMSEXPORT cmsCreateNULLProfileTHR(cmsContext ContextID)
{
cmsHPROFILE hProfile;
cmsPipeline* LUT = NULL;
cmsStage* PostLin;
cmsToneCurve* EmptyTab;
cmsUInt16Number Zero[2] = { 0, 0 };
hProfile = cmsCreateProfilePlaceholder(ContextID);
if (!hProfile) // can't allocate
return NULL;
cmsSetProfileVersion(hProfile, 4.3);
if (!SetTextTags(hProfile, L"NULL profile built-in")) goto Error;
cmsSetDeviceClass(hProfile, cmsSigOutputClass);
cmsSetColorSpace(hProfile, cmsSigGrayData);
cmsSetPCS(hProfile, cmsSigLabData);
// An empty LUTs is all we need
LUT = cmsPipelineAlloc(ContextID, 1, 1);
if (LUT == NULL) goto Error;
EmptyTab = cmsBuildTabulatedToneCurve16(ContextID, 2, Zero);
PostLin = cmsStageAllocToneCurves(ContextID, 1, &EmptyTab);
cmsFreeToneCurve(EmptyTab);
if (!cmsPipelineInsertStage(LUT, cmsAT_END, PostLin))
goto Error;
if (!cmsWriteTag(hProfile, cmsSigBToA0Tag, (void*) LUT)) goto Error;
if (!cmsWriteTag(hProfile, cmsSigMediaWhitePointTag, cmsD50_XYZ())) goto Error;
cmsPipelineFree(LUT);
return hProfile;
Error:
if (LUT != NULL)
cmsPipelineFree(LUT);
if (hProfile != NULL)
cmsCloseProfile(hProfile);
return NULL;
}
cmsHPROFILE CMSEXPORT cmsCreateNULLProfile(void)
{
return cmsCreateNULLProfileTHR(NULL);
}
static
int IsPCS(cmsColorSpaceSignature ColorSpace)
{
return (ColorSpace == cmsSigXYZData ||
ColorSpace == cmsSigLabData);
}
static
void FixColorSpaces(cmsHPROFILE hProfile,
cmsColorSpaceSignature ColorSpace,
cmsColorSpaceSignature PCS,
cmsUInt32Number dwFlags)
{
if (dwFlags & cmsFLAGS_GUESSDEVICECLASS) {
if (IsPCS(ColorSpace) && IsPCS(PCS)) {
cmsSetDeviceClass(hProfile, cmsSigAbstractClass);
cmsSetColorSpace(hProfile, ColorSpace);
cmsSetPCS(hProfile, PCS);
return;
}
if (IsPCS(ColorSpace) && !IsPCS(PCS)) {
cmsSetDeviceClass(hProfile, cmsSigOutputClass);
cmsSetPCS(hProfile, ColorSpace);
cmsSetColorSpace(hProfile, PCS);
return;
}
if (IsPCS(PCS) && !IsPCS(ColorSpace)) {
cmsSetDeviceClass(hProfile, cmsSigInputClass);
cmsSetColorSpace(hProfile, ColorSpace);
cmsSetPCS(hProfile, PCS);
return;
}
}
cmsSetDeviceClass(hProfile, cmsSigLinkClass);
cmsSetColorSpace(hProfile, ColorSpace);
cmsSetPCS(hProfile, PCS);
}
// This function creates a named color profile dumping all the contents of transform to a single profile
// In this way, LittleCMS may be used to "group" several named color databases into a single profile.
// It has, however, several minor limitations. PCS is always Lab, which is not very critic since this
// is the normal PCS for named color profiles.
static
cmsHPROFILE CreateNamedColorDevicelink(cmsHTRANSFORM xform)
{
_cmsTRANSFORM* v = (_cmsTRANSFORM*) xform;
cmsHPROFILE hICC = NULL;
int i, nColors;
cmsNAMEDCOLORLIST *nc2 = NULL, *Original = NULL;
// Create an empty placeholder
hICC = cmsCreateProfilePlaceholder(v->ContextID);
if (hICC == NULL) return NULL;
// Critical information
cmsSetDeviceClass(hICC, cmsSigNamedColorClass);
cmsSetColorSpace(hICC, v ->ExitColorSpace);
cmsSetPCS(hICC, cmsSigLabData);
// Tag profile with information
if (!SetTextTags(hICC, L"Named color devicelink")) goto Error;
Original = cmsGetNamedColorList(xform);
if (Original == NULL) goto Error;
nColors = cmsNamedColorCount(Original);
nc2 = cmsDupNamedColorList(Original);
if (nc2 == NULL) goto Error;
// Colorant count now depends on the output space
nc2 ->ColorantCount = cmsPipelineOutputChannels(v ->Lut);
// Make sure we have proper formatters
cmsChangeBuffersFormat(xform, TYPE_NAMED_COLOR_INDEX,
FLOAT_SH(0) | COLORSPACE_SH(_cmsLCMScolorSpace(v ->ExitColorSpace))
| BYTES_SH(2) | CHANNELS_SH(cmsChannelsOf(v ->ExitColorSpace)));
// Apply the transfor to colorants.
for (i=0; i < nColors; i++) {
cmsDoTransform(xform, &i, nc2 ->List[i].DeviceColorant, 1);
}
if (!cmsWriteTag(hICC, cmsSigNamedColor2Tag, (void*) nc2)) goto Error;
cmsFreeNamedColorList(nc2);
return hICC;
Error:
if (hICC != NULL) cmsCloseProfile(hICC);
return NULL;
}
// This structure holds information about which MPU can be stored on a profile based on the version
typedef struct {
cmsBool IsV4; // Is a V4 tag?
cmsTagSignature RequiredTag; // Set to 0 for both types
cmsTagTypeSignature LutType; // The LUT type
int nTypes; // Number of types (up to 5)
cmsStageSignature MpeTypes[5]; // 5 is the maximum number
} cmsAllowedLUT;
static const cmsAllowedLUT AllowedLUTTypes[] = {
{ FALSE, 0, cmsSigLut16Type, 4, { cmsSigMatrixElemType, cmsSigCurveSetElemType, cmsSigCLutElemType, cmsSigCurveSetElemType}},
{ FALSE, 0, cmsSigLut16Type, 3, { cmsSigCurveSetElemType, cmsSigCLutElemType, cmsSigCurveSetElemType}},
{ FALSE, 0, cmsSigLut16Type, 2, { cmsSigCurveSetElemType, cmsSigCLutElemType}},
{ TRUE , 0, cmsSigLutAtoBType, 1, { cmsSigCurveSetElemType }},
{ TRUE , cmsSigAToB0Tag, cmsSigLutAtoBType, 3, { cmsSigCurveSetElemType, cmsSigMatrixElemType, cmsSigCurveSetElemType } },
{ TRUE , cmsSigAToB0Tag, cmsSigLutAtoBType, 3, { cmsSigCurveSetElemType, cmsSigCLutElemType, cmsSigCurveSetElemType } },
{ TRUE , cmsSigAToB0Tag, cmsSigLutAtoBType, 5, { cmsSigCurveSetElemType, cmsSigCLutElemType, cmsSigCurveSetElemType, cmsSigMatrixElemType, cmsSigCurveSetElemType }},
{ TRUE , cmsSigBToA0Tag, cmsSigLutBtoAType, 1, { cmsSigCurveSetElemType }},
{ TRUE , cmsSigBToA0Tag, cmsSigLutBtoAType, 3, { cmsSigCurveSetElemType, cmsSigMatrixElemType, cmsSigCurveSetElemType }},
{ TRUE , cmsSigBToA0Tag, cmsSigLutBtoAType, 3, { cmsSigCurveSetElemType, cmsSigCLutElemType, cmsSigCurveSetElemType }},
{ TRUE , cmsSigBToA0Tag, cmsSigLutBtoAType, 5, { cmsSigCurveSetElemType, cmsSigMatrixElemType, cmsSigCurveSetElemType, cmsSigCLutElemType, cmsSigCurveSetElemType }}
};
#define SIZE_OF_ALLOWED_LUT (sizeof(AllowedLUTTypes)/sizeof(cmsAllowedLUT))
// Check a single entry
static
cmsBool CheckOne(const cmsAllowedLUT* Tab, const cmsPipeline* Lut)
{
cmsStage* mpe;
int n;
for (n=0, mpe = Lut ->Elements; mpe != NULL; mpe = mpe ->Next, n++) {
if (n > Tab ->nTypes) return FALSE;
if (cmsStageType(mpe) != Tab ->MpeTypes[n]) return FALSE;
}
return (n == Tab ->nTypes);
}
static
const cmsAllowedLUT* FindCombination(const cmsPipeline* Lut, cmsBool IsV4, cmsTagSignature DestinationTag)
{
cmsUInt32Number n;
for (n=0; n < SIZE_OF_ALLOWED_LUT; n++) {
const cmsAllowedLUT* Tab = AllowedLUTTypes + n;
if (IsV4 ^ Tab -> IsV4) continue;
if ((Tab ->RequiredTag != 0) && (Tab ->RequiredTag != DestinationTag)) continue;
if (CheckOne(Tab, Lut)) return Tab;
}
return NULL;
}
// Does convert a transform into a device link profile
cmsHPROFILE CMSEXPORT cmsTransform2DeviceLink(cmsHTRANSFORM hTransform, cmsFloat64Number Version, cmsUInt32Number dwFlags)
{
cmsHPROFILE hProfile = NULL;
cmsUInt32Number FrmIn, FrmOut, ChansIn, ChansOut;
cmsUInt32Number ColorSpaceBitsIn, ColorSpaceBitsOut;
_cmsTRANSFORM* xform = (_cmsTRANSFORM*) hTransform;
cmsPipeline* LUT = NULL;
cmsStage* mpe;
cmsContext ContextID = cmsGetTransformContextID(hTransform);
const cmsAllowedLUT* AllowedLUT;
cmsTagSignature DestinationTag;
cmsProfileClassSignature deviceClass;
_cmsAssert(hTransform != NULL);
// Get the first mpe to check for named color
mpe = cmsPipelineGetPtrToFirstStage(xform ->Lut);
// Check if is a named color transform
if (mpe != NULL) {
if (cmsStageType(mpe) == cmsSigNamedColorElemType) {
return CreateNamedColorDevicelink(hTransform);
}
}
// First thing to do is to get a copy of the transformation
LUT = cmsPipelineDup(xform ->Lut);
if (LUT == NULL) return NULL;
// Time to fix the Lab2/Lab4 issue.
if ((xform ->EntryColorSpace == cmsSigLabData) && (Version < 4.0)) {
if (!cmsPipelineInsertStage(LUT, cmsAT_BEGIN, _cmsStageAllocLabV2ToV4curves(ContextID)))
goto Error;
}
// On the output side too
if ((xform ->ExitColorSpace) == cmsSigLabData && (Version < 4.0)) {
if (!cmsPipelineInsertStage(LUT, cmsAT_END, _cmsStageAllocLabV4ToV2(ContextID)))
goto Error;
}
hProfile = cmsCreateProfilePlaceholder(ContextID);
if (!hProfile) goto Error; // can't allocate
cmsSetProfileVersion(hProfile, Version);
FixColorSpaces(hProfile, xform -> EntryColorSpace, xform -> ExitColorSpace, dwFlags);
// Optimize the LUT and precalculate a devicelink
ChansIn = cmsChannelsOf(xform -> EntryColorSpace);
ChansOut = cmsChannelsOf(xform -> ExitColorSpace);
ColorSpaceBitsIn = _cmsLCMScolorSpace(xform -> EntryColorSpace);
ColorSpaceBitsOut = _cmsLCMScolorSpace(xform -> ExitColorSpace);
FrmIn = COLORSPACE_SH(ColorSpaceBitsIn) | CHANNELS_SH(ChansIn)|BYTES_SH(2);
FrmOut = COLORSPACE_SH(ColorSpaceBitsOut) | CHANNELS_SH(ChansOut)|BYTES_SH(2);
deviceClass = cmsGetDeviceClass(hProfile);
if (deviceClass == cmsSigOutputClass)
DestinationTag = cmsSigBToA0Tag;
else
DestinationTag = cmsSigAToB0Tag;
// Check if the profile/version can store the result
if (dwFlags & cmsFLAGS_FORCE_CLUT)
AllowedLUT = NULL;
else
AllowedLUT = FindCombination(LUT, Version >= 4.0, DestinationTag);
if (AllowedLUT == NULL) {
// Try to optimize
_cmsOptimizePipeline(&LUT, xform ->RenderingIntent, &FrmIn, &FrmOut, &dwFlags);
AllowedLUT = FindCombination(LUT, Version >= 4.0, DestinationTag);
}
// If no way, then force CLUT that for sure can be written
if (AllowedLUT == NULL) {
dwFlags |= cmsFLAGS_FORCE_CLUT;
_cmsOptimizePipeline(&LUT, xform ->RenderingIntent, &FrmIn, &FrmOut, &dwFlags);
// Put identity curves if needed
if (cmsPipelineGetPtrToFirstStage(LUT) ->Type != cmsSigCurveSetElemType)
if (!cmsPipelineInsertStage(LUT, cmsAT_BEGIN, _cmsStageAllocIdentityCurves(ContextID, ChansIn)))
goto Error;
if (cmsPipelineGetPtrToLastStage(LUT) ->Type != cmsSigCurveSetElemType)
if (!cmsPipelineInsertStage(LUT, cmsAT_END, _cmsStageAllocIdentityCurves(ContextID, ChansOut)))
goto Error;
AllowedLUT = FindCombination(LUT, Version >= 4.0, DestinationTag);
}
// Somethings is wrong...
if (AllowedLUT == NULL) {
goto Error;
}
if (dwFlags & cmsFLAGS_8BITS_DEVICELINK)
cmsPipelineSetSaveAs8bitsFlag(LUT, TRUE);
// Tag profile with information
if (!SetTextTags(hProfile, L"devicelink")) goto Error;
// Store result
if (!cmsWriteTag(hProfile, DestinationTag, LUT)) goto Error;
if (xform -> InputColorant != NULL) {
if (!cmsWriteTag(hProfile, cmsSigColorantTableTag, xform->InputColorant)) goto Error;
}
if (xform -> OutputColorant != NULL) {
if (!cmsWriteTag(hProfile, cmsSigColorantTableOutTag, xform->OutputColorant)) goto Error;
}
if ((deviceClass == cmsSigLinkClass) && (xform ->Sequence != NULL)) {
if (!_cmsWriteProfileSequence(hProfile, xform ->Sequence)) goto Error;
}
// Set the white point
if (deviceClass == cmsSigInputClass) {
if (!cmsWriteTag(hProfile, cmsSigMediaWhitePointTag, &xform ->EntryWhitePoint)) goto Error;
}
else {
if (!cmsWriteTag(hProfile, cmsSigMediaWhitePointTag, &xform ->ExitWhitePoint)) goto Error;
}
// Per 7.2.15 in spec 4.3
cmsSetHeaderRenderingIntent(hProfile, xform ->RenderingIntent);
cmsPipelineFree(LUT);
return hProfile;
Error:
if (LUT != NULL) cmsPipelineFree(LUT);
cmsCloseProfile(hProfile);
return NULL;
}
|
61 | ./little-cms/src/cmstypes.c | //---------------------------------------------------------------------------------
//
// Little Color Management System
// Copyright (c) 1998-2011 Marti Maria Saguer
//
// Permission is hereby granted, free of charge, to any person obtaining
// a copy of this software and associated documentation files (the "Software"),
// to deal in the Software without restriction, including without limitation
// the rights to use, copy, modify, merge, publish, distribute, sublicense,
// and/or sell copies of the Software, and to permit persons to whom the Software
// is furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO
// THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
// LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
// OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
// WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
//
//---------------------------------------------------------------------------------
//
#include "lcms2_internal.h"
// Tag Serialization -----------------------------------------------------------------------------
// This file implements every single tag and tag type as described in the ICC spec. Some types
// have been deprecated, like ncl and Data. There is no implementation for those types as there
// are no profiles holding them. The programmer can also extend this list by defining his own types
// by using the appropiate plug-in. There are three types of plug ins regarding that. First type
// allows to define new tags using any existing type. Next plug-in type allows to define new types
// and the third one is very specific: allows to extend the number of elements in the multiprofile
// elements special type.
//--------------------------------------------------------------------------------------------------
// Some broken types
#define cmsCorbisBrokenXYZtype ((cmsTagTypeSignature) 0x17A505B8)
#define cmsMonacoBrokenCurveType ((cmsTagTypeSignature) 0x9478ee00)
// This is the linked list that keeps track of the defined types
typedef struct _cmsTagTypeLinkedList_st {
cmsTagTypeHandler Handler;
struct _cmsTagTypeLinkedList_st* Next;
} _cmsTagTypeLinkedList;
// Some macros to define callbacks.
#define READ_FN(x) Type_##x##_Read
#define WRITE_FN(x) Type_##x##_Write
#define FREE_FN(x) Type_##x##_Free
#define DUP_FN(x) Type_##x##_Dup
// Helper macro to define a handler. Callbacks do have a fixed naming convention.
#define TYPE_HANDLER(t, x) { (t), READ_FN(x), WRITE_FN(x), DUP_FN(x), FREE_FN(x), NULL, 0 }
// Helper macro to define a MPE handler. Callbacks do have a fixed naming convention
#define TYPE_MPE_HANDLER(t, x) { (t), READ_FN(x), WRITE_FN(x), GenericMPEdup, GenericMPEfree, NULL, 0 }
// Register a new type handler. This routine is shared between normal types and MPE
static
cmsBool RegisterTypesPlugin(cmsContext id, cmsPluginBase* Data, _cmsTagTypeLinkedList* LinkedList, cmsUInt32Number DefaultListCount)
{
cmsPluginTagType* Plugin = (cmsPluginTagType*) Data;
_cmsTagTypeLinkedList *pt, *Anterior = NULL;
// Calling the function with NULL as plug-in would unregister the plug in.
if (Data == NULL) {
LinkedList[DefaultListCount-1].Next = NULL;
return TRUE;
}
pt = Anterior = LinkedList;
while (pt != NULL) {
if (Plugin->Handler.Signature == pt -> Handler.Signature) {
pt ->Handler = Plugin ->Handler; // Replace old behaviour.
// Note that since no memory is allocated, unregister does not
// reset this action.
return TRUE;
}
Anterior = pt;
pt = pt ->Next;
}
// Registering happens in plug-in memory pool
pt = (_cmsTagTypeLinkedList*) _cmsPluginMalloc(id, sizeof(_cmsTagTypeLinkedList));
if (pt == NULL) return FALSE;
pt ->Handler = Plugin ->Handler;
pt ->Next = NULL;
if (Anterior)
Anterior -> Next = pt;
return TRUE;
}
// Return handler for a given type or NULL if not found. Shared between normal types and MPE
static
cmsTagTypeHandler* GetHandler(cmsTagTypeSignature sig, _cmsTagTypeLinkedList* LinkedList)
{
_cmsTagTypeLinkedList* pt;
for (pt = LinkedList;
pt != NULL;
pt = pt ->Next) {
if (sig == pt -> Handler.Signature) return &pt ->Handler;
}
return NULL;
}
// Auxiliar to convert UTF-32 to UTF-16 in some cases
static
cmsBool _cmsWriteWCharArray(cmsIOHANDLER* io, cmsUInt32Number n, const wchar_t* Array)
{
cmsUInt32Number i;
_cmsAssert(io != NULL);
_cmsAssert(!(Array == NULL && n > 0));
for (i=0; i < n; i++) {
if (!_cmsWriteUInt16Number(io, (cmsUInt16Number) Array[i])) return FALSE;
}
return TRUE;
}
static
cmsBool _cmsReadWCharArray(cmsIOHANDLER* io, cmsUInt32Number n, wchar_t* Array)
{
cmsUInt32Number i;
cmsUInt16Number tmp;
_cmsAssert(io != NULL);
for (i=0; i < n; i++) {
if (Array != NULL) {
if (!_cmsReadUInt16Number(io, &tmp)) return FALSE;
Array[i] = (wchar_t) tmp;
}
else {
if (!_cmsReadUInt16Number(io, NULL)) return FALSE;
}
}
return TRUE;
}
// To deal with position tables
typedef cmsBool (* PositionTableEntryFn)(struct _cms_typehandler_struct* self,
cmsIOHANDLER* io,
void* Cargo,
cmsUInt32Number n,
cmsUInt32Number SizeOfTag);
// Helper function to deal with position tables as decribed in ICC spec 4.3
// A table of n elements is readed, where first comes n records containing offsets and sizes and
// then a block containing the data itself. This allows to reuse same data in more than one entry
static
cmsBool ReadPositionTable(struct _cms_typehandler_struct* self,
cmsIOHANDLER* io,
cmsUInt32Number Count,
cmsUInt32Number BaseOffset,
void *Cargo,
PositionTableEntryFn ElementFn)
{
cmsUInt32Number i;
cmsUInt32Number *ElementOffsets = NULL, *ElementSizes = NULL;
// Let's take the offsets to each element
ElementOffsets = (cmsUInt32Number *) _cmsCalloc(io ->ContextID, Count, sizeof(cmsUInt32Number));
if (ElementOffsets == NULL) goto Error;
ElementSizes = (cmsUInt32Number *) _cmsCalloc(io ->ContextID, Count, sizeof(cmsUInt32Number));
if (ElementSizes == NULL) goto Error;
for (i=0; i < Count; i++) {
if (!_cmsReadUInt32Number(io, &ElementOffsets[i])) goto Error;
if (!_cmsReadUInt32Number(io, &ElementSizes[i])) goto Error;
ElementOffsets[i] += BaseOffset;
}
// Seek to each element and read it
for (i=0; i < Count; i++) {
if (!io -> Seek(io, ElementOffsets[i])) goto Error;
// This is the reader callback
if (!ElementFn(self, io, Cargo, i, ElementSizes[i])) goto Error;
}
// Success
if (ElementOffsets != NULL) _cmsFree(io ->ContextID, ElementOffsets);
if (ElementSizes != NULL) _cmsFree(io ->ContextID, ElementSizes);
return TRUE;
Error:
if (ElementOffsets != NULL) _cmsFree(io ->ContextID, ElementOffsets);
if (ElementSizes != NULL) _cmsFree(io ->ContextID, ElementSizes);
return FALSE;
}
// Same as anterior, but for write position tables
static
cmsBool WritePositionTable(struct _cms_typehandler_struct* self,
cmsIOHANDLER* io,
cmsUInt32Number SizeOfTag,
cmsUInt32Number Count,
cmsUInt32Number BaseOffset,
void *Cargo,
PositionTableEntryFn ElementFn)
{
cmsUInt32Number i;
cmsUInt32Number DirectoryPos, CurrentPos, Before;
cmsUInt32Number *ElementOffsets = NULL, *ElementSizes = NULL;
// Create table
ElementOffsets = (cmsUInt32Number *) _cmsCalloc(io ->ContextID, Count, sizeof(cmsUInt32Number));
if (ElementOffsets == NULL) goto Error;
ElementSizes = (cmsUInt32Number *) _cmsCalloc(io ->ContextID, Count, sizeof(cmsUInt32Number));
if (ElementSizes == NULL) goto Error;
// Keep starting position of curve offsets
DirectoryPos = io ->Tell(io);
// Write a fake directory to be filled latter on
for (i=0; i < Count; i++) {
if (!_cmsWriteUInt32Number(io, 0)) goto Error; // Offset
if (!_cmsWriteUInt32Number(io, 0)) goto Error; // size
}
// Write each element. Keep track of the size as well.
for (i=0; i < Count; i++) {
Before = io ->Tell(io);
ElementOffsets[i] = Before - BaseOffset;
// Callback to write...
if (!ElementFn(self, io, Cargo, i, SizeOfTag)) goto Error;
// Now the size
ElementSizes[i] = io ->Tell(io) - Before;
}
// Write the directory
CurrentPos = io ->Tell(io);
if (!io ->Seek(io, DirectoryPos)) goto Error;
for (i=0; i < Count; i++) {
if (!_cmsWriteUInt32Number(io, ElementOffsets[i])) goto Error;
if (!_cmsWriteUInt32Number(io, ElementSizes[i])) goto Error;
}
if (!io ->Seek(io, CurrentPos)) goto Error;
if (ElementOffsets != NULL) _cmsFree(io ->ContextID, ElementOffsets);
if (ElementSizes != NULL) _cmsFree(io ->ContextID, ElementSizes);
return TRUE;
Error:
if (ElementOffsets != NULL) _cmsFree(io ->ContextID, ElementOffsets);
if (ElementSizes != NULL) _cmsFree(io ->ContextID, ElementSizes);
return FALSE;
}
// ********************************************************************************
// Type XYZ. Only one value is allowed
// ********************************************************************************
//The XYZType contains an array of three encoded values for the XYZ tristimulus
//values. Tristimulus values must be non-negative. The signed encoding allows for
//implementation optimizations by minimizing the number of fixed formats.
static
void *Type_XYZ_Read(struct _cms_typehandler_struct* self, cmsIOHANDLER* io, cmsUInt32Number* nItems, cmsUInt32Number SizeOfTag)
{
cmsCIEXYZ* xyz;
*nItems = 0;
xyz = (cmsCIEXYZ*) _cmsMallocZero(self ->ContextID, sizeof(cmsCIEXYZ));
if (xyz == NULL) return NULL;
if (!_cmsReadXYZNumber(io, xyz)) {
_cmsFree(self ->ContextID, xyz);
return NULL;
}
*nItems = 1;
return (void*) xyz;
cmsUNUSED_PARAMETER(SizeOfTag);
}
static
cmsBool Type_XYZ_Write(struct _cms_typehandler_struct* self, cmsIOHANDLER* io, void* Ptr, cmsUInt32Number nItems)
{
return _cmsWriteXYZNumber(io, (cmsCIEXYZ*) Ptr);
cmsUNUSED_PARAMETER(nItems);
cmsUNUSED_PARAMETER(self);
}
static
void* Type_XYZ_Dup(struct _cms_typehandler_struct* self, const void *Ptr, cmsUInt32Number n)
{
return _cmsDupMem(self ->ContextID, Ptr, sizeof(cmsCIEXYZ));
cmsUNUSED_PARAMETER(n);
}
static
void Type_XYZ_Free(struct _cms_typehandler_struct* self, void *Ptr)
{
_cmsFree(self ->ContextID, Ptr);
}
static
cmsTagTypeSignature DecideXYZtype(cmsFloat64Number ICCVersion, const void *Data)
{
return cmsSigXYZType;
cmsUNUSED_PARAMETER(ICCVersion);
cmsUNUSED_PARAMETER(Data);
}
// ********************************************************************************
// Type chromaticity. Only one value is allowed
// ********************************************************************************
// The chromaticity tag type provides basic chromaticity data and type of
// phosphors or colorants of a monitor to applications and utilities.
static
void *Type_Chromaticity_Read(struct _cms_typehandler_struct* self, cmsIOHANDLER* io, cmsUInt32Number* nItems, cmsUInt32Number SizeOfTag)
{
cmsCIExyYTRIPLE* chrm;
cmsUInt16Number nChans, Table;
*nItems = 0;
chrm = (cmsCIExyYTRIPLE*) _cmsMallocZero(self ->ContextID, sizeof(cmsCIExyYTRIPLE));
if (chrm == NULL) return NULL;
if (!_cmsReadUInt16Number(io, &nChans)) goto Error;
// Let's recover from a bug introduced in early versions of lcms1
if (nChans == 0 && SizeOfTag == 32) {
if (!_cmsReadUInt16Number(io, NULL)) goto Error;
if (!_cmsReadUInt16Number(io, &nChans)) goto Error;
}
if (nChans != 3) goto Error;
if (!_cmsReadUInt16Number(io, &Table)) goto Error;
if (!_cmsRead15Fixed16Number(io, &chrm ->Red.x)) goto Error;
if (!_cmsRead15Fixed16Number(io, &chrm ->Red.y)) goto Error;
chrm ->Red.Y = 1.0;
if (!_cmsRead15Fixed16Number(io, &chrm ->Green.x)) goto Error;
if (!_cmsRead15Fixed16Number(io, &chrm ->Green.y)) goto Error;
chrm ->Green.Y = 1.0;
if (!_cmsRead15Fixed16Number(io, &chrm ->Blue.x)) goto Error;
if (!_cmsRead15Fixed16Number(io, &chrm ->Blue.y)) goto Error;
chrm ->Blue.Y = 1.0;
*nItems = 1;
return (void*) chrm;
Error:
_cmsFree(self ->ContextID, (void*) chrm);
return NULL;
cmsUNUSED_PARAMETER(SizeOfTag);
}
static
cmsBool SaveOneChromaticity(cmsFloat64Number x, cmsFloat64Number y, cmsIOHANDLER* io)
{
if (!_cmsWriteUInt32Number(io, _cmsDoubleTo15Fixed16(x))) return FALSE;
if (!_cmsWriteUInt32Number(io, _cmsDoubleTo15Fixed16(y))) return FALSE;
return TRUE;
}
static
cmsBool Type_Chromaticity_Write(struct _cms_typehandler_struct* self, cmsIOHANDLER* io, void* Ptr, cmsUInt32Number nItems)
{
cmsCIExyYTRIPLE* chrm = (cmsCIExyYTRIPLE*) Ptr;
if (!_cmsWriteUInt16Number(io, 3)) return FALSE; // nChannels
if (!_cmsWriteUInt16Number(io, 0)) return FALSE; // Table
if (!SaveOneChromaticity(chrm -> Red.x, chrm -> Red.y, io)) return FALSE;
if (!SaveOneChromaticity(chrm -> Green.x, chrm -> Green.y, io)) return FALSE;
if (!SaveOneChromaticity(chrm -> Blue.x, chrm -> Blue.y, io)) return FALSE;
return TRUE;
cmsUNUSED_PARAMETER(nItems);
cmsUNUSED_PARAMETER(self);
}
static
void* Type_Chromaticity_Dup(struct _cms_typehandler_struct* self, const void *Ptr, cmsUInt32Number n)
{
return _cmsDupMem(self ->ContextID, Ptr, sizeof(cmsCIExyYTRIPLE));
cmsUNUSED_PARAMETER(n);
}
static
void Type_Chromaticity_Free(struct _cms_typehandler_struct* self, void* Ptr)
{
_cmsFree(self ->ContextID, Ptr);
}
// ********************************************************************************
// Type cmsSigColorantOrderType
// ********************************************************************************
// This is an optional tag which specifies the laydown order in which colorants will
// be printed on an n-colorant device. The laydown order may be the same as the
// channel generation order listed in the colorantTableTag or the channel order of a
// colour space such as CMYK, in which case this tag is not needed. When this is not
// the case (for example, ink-towers sometimes use the order KCMY), this tag may be
// used to specify the laydown order of the colorants.
static
void *Type_ColorantOrderType_Read(struct _cms_typehandler_struct* self, cmsIOHANDLER* io, cmsUInt32Number* nItems, cmsUInt32Number SizeOfTag)
{
cmsUInt8Number* ColorantOrder;
cmsUInt32Number Count;
*nItems = 0;
if (!_cmsReadUInt32Number(io, &Count)) return NULL;
if (Count > cmsMAXCHANNELS) return NULL;
ColorantOrder = (cmsUInt8Number*) _cmsCalloc(self ->ContextID, cmsMAXCHANNELS, sizeof(cmsUInt8Number));
if (ColorantOrder == NULL) return NULL;
// We use FF as end marker
memset(ColorantOrder, 0xFF, cmsMAXCHANNELS * sizeof(cmsUInt8Number));
if (io ->Read(io, ColorantOrder, sizeof(cmsUInt8Number), Count) != Count) {
_cmsFree(self ->ContextID, (void*) ColorantOrder);
return NULL;
}
*nItems = 1;
return (void*) ColorantOrder;
cmsUNUSED_PARAMETER(SizeOfTag);
}
static
cmsBool Type_ColorantOrderType_Write(struct _cms_typehandler_struct* self, cmsIOHANDLER* io, void* Ptr, cmsUInt32Number nItems)
{
cmsUInt8Number* ColorantOrder = (cmsUInt8Number*) Ptr;
cmsUInt32Number i, sz, Count;
// Get the length
for (Count=i=0; i < cmsMAXCHANNELS; i++) {
if (ColorantOrder[i] != 0xFF) Count++;
}
if (!_cmsWriteUInt32Number(io, Count)) return FALSE;
sz = Count * sizeof(cmsUInt8Number);
if (!io -> Write(io, sz, ColorantOrder)) return FALSE;
return TRUE;
cmsUNUSED_PARAMETER(nItems);
cmsUNUSED_PARAMETER(self);
}
static
void* Type_ColorantOrderType_Dup(struct _cms_typehandler_struct* self, const void *Ptr, cmsUInt32Number n)
{
return _cmsDupMem(self ->ContextID, Ptr, cmsMAXCHANNELS * sizeof(cmsUInt8Number));
cmsUNUSED_PARAMETER(n);
}
static
void Type_ColorantOrderType_Free(struct _cms_typehandler_struct* self, void* Ptr)
{
_cmsFree(self ->ContextID, Ptr);
}
// ********************************************************************************
// Type cmsSigS15Fixed16ArrayType
// ********************************************************************************
// This type represents an array of generic 4-byte/32-bit fixed point quantity.
// The number of values is determined from the size of the tag.
static
void *Type_S15Fixed16_Read(struct _cms_typehandler_struct* self, cmsIOHANDLER* io, cmsUInt32Number* nItems, cmsUInt32Number SizeOfTag)
{
cmsFloat64Number* array_double;
cmsUInt32Number i, n;
*nItems = 0;
n = SizeOfTag / sizeof(cmsUInt32Number);
array_double = (cmsFloat64Number*) _cmsCalloc(self ->ContextID, n, sizeof(cmsFloat64Number));
if (array_double == NULL) return NULL;
for (i=0; i < n; i++) {
if (!_cmsRead15Fixed16Number(io, &array_double[i])) {
_cmsFree(self ->ContextID, array_double);
return NULL;
}
}
*nItems = n;
return (void*) array_double;
}
static
cmsBool Type_S15Fixed16_Write(struct _cms_typehandler_struct* self, cmsIOHANDLER* io, void* Ptr, cmsUInt32Number nItems)
{
cmsFloat64Number* Value = (cmsFloat64Number*) Ptr;
cmsUInt32Number i;
for (i=0; i < nItems; i++) {
if (!_cmsWrite15Fixed16Number(io, Value[i])) return FALSE;
}
return TRUE;
cmsUNUSED_PARAMETER(self);
}
static
void* Type_S15Fixed16_Dup(struct _cms_typehandler_struct* self, const void *Ptr, cmsUInt32Number n)
{
return _cmsDupMem(self ->ContextID, Ptr, n * sizeof(cmsFloat64Number));
}
static
void Type_S15Fixed16_Free(struct _cms_typehandler_struct* self, void* Ptr)
{
_cmsFree(self ->ContextID, Ptr);
}
// ********************************************************************************
// Type cmsSigU16Fixed16ArrayType
// ********************************************************************************
// This type represents an array of generic 4-byte/32-bit quantity.
// The number of values is determined from the size of the tag.
static
void *Type_U16Fixed16_Read(struct _cms_typehandler_struct* self, cmsIOHANDLER* io, cmsUInt32Number* nItems, cmsUInt32Number SizeOfTag)
{
cmsFloat64Number* array_double;
cmsUInt32Number v;
cmsUInt32Number i, n;
*nItems = 0;
n = SizeOfTag / sizeof(cmsUInt32Number);
array_double = (cmsFloat64Number*) _cmsCalloc(self ->ContextID, n, sizeof(cmsFloat64Number));
if (array_double == NULL) return NULL;
for (i=0; i < n; i++) {
if (!_cmsReadUInt32Number(io, &v)) {
_cmsFree(self ->ContextID, (void*) array_double);
return NULL;
}
// Convert to cmsFloat64Number
array_double[i] = (cmsFloat64Number) (v / 65536.0);
}
*nItems = n;
return (void*) array_double;
}
static
cmsBool Type_U16Fixed16_Write(struct _cms_typehandler_struct* self, cmsIOHANDLER* io, void* Ptr, cmsUInt32Number nItems)
{
cmsFloat64Number* Value = (cmsFloat64Number*) Ptr;
cmsUInt32Number i;
for (i=0; i < nItems; i++) {
cmsUInt32Number v = (cmsUInt32Number) floor(Value[i]*65536.0 + 0.5);
if (!_cmsWriteUInt32Number(io, v)) return FALSE;
}
return TRUE;
cmsUNUSED_PARAMETER(self);
}
static
void* Type_U16Fixed16_Dup(struct _cms_typehandler_struct* self, const void *Ptr, cmsUInt32Number n)
{
return _cmsDupMem(self ->ContextID, Ptr, n * sizeof(cmsFloat64Number));
}
static
void Type_U16Fixed16_Free(struct _cms_typehandler_struct* self, void* Ptr)
{
_cmsFree(self ->ContextID, Ptr);
}
// ********************************************************************************
// Type cmsSigSignatureType
// ********************************************************************************
//
// The signatureType contains a four-byte sequence, Sequences of less than four
// characters are padded at the end with spaces, 20h.
// Typically this type is used for registered tags that can be displayed on many
// development systems as a sequence of four characters.
static
void *Type_Signature_Read(struct _cms_typehandler_struct* self, cmsIOHANDLER* io, cmsUInt32Number* nItems, cmsUInt32Number SizeOfTag)
{
cmsSignature* SigPtr = (cmsSignature*) _cmsMalloc(self ->ContextID, sizeof(cmsSignature));
if (SigPtr == NULL) return NULL;
if (!_cmsReadUInt32Number(io, SigPtr)) return NULL;
*nItems = 1;
return SigPtr;
cmsUNUSED_PARAMETER(SizeOfTag);
}
static
cmsBool Type_Signature_Write(struct _cms_typehandler_struct* self, cmsIOHANDLER* io, void* Ptr, cmsUInt32Number nItems)
{
cmsSignature* SigPtr = (cmsSignature*) Ptr;
return _cmsWriteUInt32Number(io, *SigPtr);
cmsUNUSED_PARAMETER(nItems);
cmsUNUSED_PARAMETER(self);
}
static
void* Type_Signature_Dup(struct _cms_typehandler_struct* self, const void *Ptr, cmsUInt32Number n)
{
return _cmsDupMem(self ->ContextID, Ptr, n * sizeof(cmsSignature));
}
static
void Type_Signature_Free(struct _cms_typehandler_struct* self, void* Ptr)
{
_cmsFree(self ->ContextID, Ptr);
}
// ********************************************************************************
// Type cmsSigTextType
// ********************************************************************************
//
// The textType is a simple text structure that contains a 7-bit ASCII text string.
// The length of the string is obtained by subtracting 8 from the element size portion
// of the tag itself. This string must be terminated with a 00h byte.
static
void *Type_Text_Read(struct _cms_typehandler_struct* self, cmsIOHANDLER* io, cmsUInt32Number* nItems, cmsUInt32Number SizeOfTag)
{
char* Text = NULL;
cmsMLU* mlu = NULL;
// Create a container
mlu = cmsMLUalloc(self ->ContextID, 1);
if (mlu == NULL) return NULL;
*nItems = 0;
// We need to store the "\0" at the end, so +1
if (SizeOfTag == UINT_MAX) goto Error;
Text = (char*) _cmsMalloc(self ->ContextID, SizeOfTag + 1);
if (Text == NULL) goto Error;
if (io -> Read(io, Text, sizeof(char), SizeOfTag) != SizeOfTag) goto Error;
// Make sure text is properly ended
Text[SizeOfTag] = 0;
*nItems = 1;
// Keep the result
if (!cmsMLUsetASCII(mlu, cmsNoLanguage, cmsNoCountry, Text)) goto Error;
_cmsFree(self ->ContextID, Text);
return (void*) mlu;
Error:
if (mlu != NULL)
cmsMLUfree(mlu);
if (Text != NULL)
_cmsFree(self ->ContextID, Text);
return NULL;
}
// The conversion implies to choose a language. So, we choose the actual language.
static
cmsBool Type_Text_Write(struct _cms_typehandler_struct* self, cmsIOHANDLER* io, void* Ptr, cmsUInt32Number nItems)
{
cmsMLU* mlu = (cmsMLU*) Ptr;
cmsUInt32Number size;
cmsBool rc;
char* Text;
// Get the size of the string. Note there is an extra "\0" at the end
size = cmsMLUgetASCII(mlu, cmsNoLanguage, cmsNoCountry, NULL, 0);
if (size == 0) return FALSE; // Cannot be zero!
// Create memory
Text = (char*) _cmsMalloc(self ->ContextID, size);
cmsMLUgetASCII(mlu, cmsNoLanguage, cmsNoCountry, Text, size);
// Write it, including separator
rc = io ->Write(io, size, Text);
_cmsFree(self ->ContextID, Text);
return rc;
cmsUNUSED_PARAMETER(nItems);
}
static
void* Type_Text_Dup(struct _cms_typehandler_struct* self, const void *Ptr, cmsUInt32Number n)
{
return (void*) cmsMLUdup((cmsMLU*) Ptr);
cmsUNUSED_PARAMETER(n);
cmsUNUSED_PARAMETER(self);
}
static
void Type_Text_Free(struct _cms_typehandler_struct* self, void* Ptr)
{
cmsMLU* mlu = (cmsMLU*) Ptr;
cmsMLUfree(mlu);
return;
cmsUNUSED_PARAMETER(self);
}
static
cmsTagTypeSignature DecideTextType(cmsFloat64Number ICCVersion, const void *Data)
{
if (ICCVersion >= 4.0)
return cmsSigMultiLocalizedUnicodeType;
return cmsSigTextType;
cmsUNUSED_PARAMETER(Data);
}
// ********************************************************************************
// Type cmsSigDataType
// ********************************************************************************
// General purpose data type
static
void *Type_Data_Read(struct _cms_typehandler_struct* self, cmsIOHANDLER* io, cmsUInt32Number* nItems, cmsUInt32Number SizeOfTag)
{
cmsICCData* BinData;
cmsUInt32Number LenOfData;
*nItems = 0;
if (SizeOfTag < sizeof(cmsUInt32Number)) return NULL;
LenOfData = SizeOfTag - sizeof(cmsUInt32Number);
if (LenOfData > INT_MAX) return NULL;
BinData = (cmsICCData*) _cmsMalloc(self ->ContextID, sizeof(cmsICCData) + LenOfData - 1);
if (BinData == NULL) return NULL;
BinData ->len = LenOfData;
if (!_cmsReadUInt32Number(io, &BinData->flag)) {
_cmsFree(self ->ContextID, BinData);
return NULL;
}
if (io -> Read(io, BinData ->data, sizeof(cmsUInt8Number), LenOfData) != LenOfData) {
_cmsFree(self ->ContextID, BinData);
return NULL;
}
*nItems = 1;
return (void*) BinData;
}
static
cmsBool Type_Data_Write(struct _cms_typehandler_struct* self, cmsIOHANDLER* io, void* Ptr, cmsUInt32Number nItems)
{
cmsICCData* BinData = (cmsICCData*) Ptr;
if (!_cmsWriteUInt32Number(io, BinData ->flag)) return FALSE;
return io ->Write(io, BinData ->len, BinData ->data);
cmsUNUSED_PARAMETER(nItems);
cmsUNUSED_PARAMETER(self);
}
static
void* Type_Data_Dup(struct _cms_typehandler_struct* self, const void *Ptr, cmsUInt32Number n)
{
cmsICCData* BinData = (cmsICCData*) Ptr;
return _cmsDupMem(self ->ContextID, Ptr, sizeof(cmsICCData) + BinData ->len - 1);
cmsUNUSED_PARAMETER(n);
}
static
void Type_Data_Free(struct _cms_typehandler_struct* self, void* Ptr)
{
_cmsFree(self ->ContextID, Ptr);
}
// ********************************************************************************
// Type cmsSigTextDescriptionType
// ********************************************************************************
static
void *Type_Text_Description_Read(struct _cms_typehandler_struct* self, cmsIOHANDLER* io, cmsUInt32Number* nItems, cmsUInt32Number SizeOfTag)
{
char* Text = NULL;
cmsMLU* mlu = NULL;
cmsUInt32Number AsciiCount;
cmsUInt32Number i, UnicodeCode, UnicodeCount;
cmsUInt16Number ScriptCodeCode, Dummy;
cmsUInt8Number ScriptCodeCount;
*nItems = 0;
// One dword should be there
if (SizeOfTag < sizeof(cmsUInt32Number)) return NULL;
// Read len of ASCII
if (!_cmsReadUInt32Number(io, &AsciiCount)) return NULL;
SizeOfTag -= sizeof(cmsUInt32Number);
// Check for size
if (SizeOfTag < AsciiCount) return NULL;
// All seems Ok, allocate the container
mlu = cmsMLUalloc(self ->ContextID, 1);
if (mlu == NULL) return NULL;
// As many memory as size of tag
Text = (char*) _cmsMalloc(self ->ContextID, AsciiCount + 1);
if (Text == NULL) goto Error;
// Read it
if (io ->Read(io, Text, sizeof(char), AsciiCount) != AsciiCount) goto Error;
SizeOfTag -= AsciiCount;
// Make sure there is a terminator
Text[AsciiCount] = 0;
// Set the MLU entry. From here we can be tolerant to wrong types
if (!cmsMLUsetASCII(mlu, cmsNoLanguage, cmsNoCountry, Text)) goto Error;
_cmsFree(self ->ContextID, (void*) Text);
Text = NULL;
// Skip Unicode code
if (SizeOfTag < 2* sizeof(cmsUInt32Number)) goto Done;
if (!_cmsReadUInt32Number(io, &UnicodeCode)) goto Done;
if (!_cmsReadUInt32Number(io, &UnicodeCount)) goto Done;
SizeOfTag -= 2* sizeof(cmsUInt32Number);
if (SizeOfTag < UnicodeCount*sizeof(cmsUInt16Number)) goto Done;
for (i=0; i < UnicodeCount; i++) {
if (!io ->Read(io, &Dummy, sizeof(cmsUInt16Number), 1)) goto Done;
}
SizeOfTag -= UnicodeCount*sizeof(cmsUInt16Number);
// Skip ScriptCode code if present. Some buggy profiles does have less
// data that stricttly required. We need to skip it as this type may come
// embedded in other types.
if (SizeOfTag >= sizeof(cmsUInt16Number) + sizeof(cmsUInt8Number) + 67) {
if (!_cmsReadUInt16Number(io, &ScriptCodeCode)) goto Done;
if (!_cmsReadUInt8Number(io, &ScriptCodeCount)) goto Done;
// Skip rest of tag
for (i=0; i < 67; i++) {
if (!io ->Read(io, &Dummy, sizeof(cmsUInt8Number), 1)) goto Error;
}
}
Done:
*nItems = 1;
return mlu;
Error:
if (Text) _cmsFree(self ->ContextID, (void*) Text);
if (mlu) cmsMLUfree(mlu);
return NULL;
}
// This tag can come IN UNALIGNED SIZE. In order to prevent issues, we force zeros on description to align it
static
cmsBool Type_Text_Description_Write(struct _cms_typehandler_struct* self, cmsIOHANDLER* io, void* Ptr, cmsUInt32Number nItems)
{
cmsMLU* mlu = (cmsMLU*) Ptr;
char *Text = NULL;
wchar_t *Wide = NULL;
cmsUInt32Number len, len_aligned, len_filler_alignment;
cmsBool rc = FALSE;
char Filler[68];
// Used below for writting zeroes
memset(Filler, 0, sizeof(Filler));
// Get the len of string
len = cmsMLUgetASCII(mlu, cmsNoLanguage, cmsNoCountry, NULL, 0);
// From ICC3.4: It has been found that textDescriptionType can contain misaligned data
//(see clause 4.1 for the definition of ôalignedö). Because the Unicode language
// code and Unicode count immediately follow the ASCII description, their
// alignment is not correct if the ASCII count is not a multiple of four. The
// ScriptCode code is misaligned when the ASCII count is odd. Profile reading and
// writing software must be written carefully in order to handle these alignment
// problems.
// Compute an aligned size
len_aligned = _cmsALIGNLONG(len);
len_filler_alignment = len_aligned - len;
// Null strings
if (len <= 0) {
Text = (char*) _cmsDupMem(self ->ContextID, "", sizeof(char));
Wide = (wchar_t*) _cmsDupMem(self ->ContextID, L"", sizeof(wchar_t));
}
else {
// Create independent buffers
Text = (char*) _cmsCalloc(self ->ContextID, len, sizeof(char));
if (Text == NULL) goto Error;
Wide = (wchar_t*) _cmsCalloc(self ->ContextID, len, sizeof(wchar_t));
if (Wide == NULL) goto Error;
// Get both representations.
cmsMLUgetASCII(mlu, cmsNoLanguage, cmsNoCountry, Text, len * sizeof(char));
cmsMLUgetWide(mlu, cmsNoLanguage, cmsNoCountry, Wide, len * sizeof(wchar_t));
}
// * cmsUInt32Number count; * Description length
// * cmsInt8Number desc[count] * NULL terminated ascii string
// * cmsUInt32Number ucLangCode; * UniCode language code
// * cmsUInt32Number ucCount; * UniCode description length
// * cmsInt16Number ucDesc[ucCount];* The UniCode description
// * cmsUInt16Number scCode; * ScriptCode code
// * cmsUInt8Number scCount; * ScriptCode count
// * cmsInt8Number scDesc[67]; * ScriptCode Description
if (!_cmsWriteUInt32Number(io, len_aligned)) goto Error;
if (!io ->Write(io, len, Text)) goto Error;
if (!io ->Write(io, len_filler_alignment, Filler)) goto Error;
if (!_cmsWriteUInt32Number(io, 0)) goto Error; // ucLanguageCode
// This part is tricky: we need an aligned tag size, and the ScriptCode part
// takes 70 bytes, so we need 2 extra bytes to do the alignment
if (!_cmsWriteUInt32Number(io, len_aligned+1)) goto Error;
// Note that in some compilers sizeof(cmsUInt16Number) != sizeof(wchar_t)
if (!_cmsWriteWCharArray(io, len, Wide)) goto Error;
if (!_cmsWriteUInt16Array(io, len_filler_alignment+1, (cmsUInt16Number*) Filler)) goto Error;
// ScriptCode Code & count (unused)
if (!_cmsWriteUInt16Number(io, 0)) goto Error;
if (!_cmsWriteUInt8Number(io, 0)) goto Error;
if (!io ->Write(io, 67, Filler)) goto Error;
rc = TRUE;
Error:
if (Text) _cmsFree(self ->ContextID, Text);
if (Wide) _cmsFree(self ->ContextID, Wide);
return rc;
cmsUNUSED_PARAMETER(nItems);
}
static
void* Type_Text_Description_Dup(struct _cms_typehandler_struct* self, const void *Ptr, cmsUInt32Number n)
{
return (void*) cmsMLUdup((cmsMLU*) Ptr);
cmsUNUSED_PARAMETER(n);
cmsUNUSED_PARAMETER(self);
}
static
void Type_Text_Description_Free(struct _cms_typehandler_struct* self, void* Ptr)
{
cmsMLU* mlu = (cmsMLU*) Ptr;
cmsMLUfree(mlu);
return;
cmsUNUSED_PARAMETER(self);
}
static
cmsTagTypeSignature DecideTextDescType(cmsFloat64Number ICCVersion, const void *Data)
{
if (ICCVersion >= 4.0)
return cmsSigMultiLocalizedUnicodeType;
return cmsSigTextDescriptionType;
cmsUNUSED_PARAMETER(Data);
}
// ********************************************************************************
// Type cmsSigCurveType
// ********************************************************************************
static
void *Type_Curve_Read(struct _cms_typehandler_struct* self, cmsIOHANDLER* io, cmsUInt32Number* nItems, cmsUInt32Number SizeOfTag)
{
cmsUInt32Number Count;
cmsToneCurve* NewGamma;
*nItems = 0;
if (!_cmsReadUInt32Number(io, &Count)) return NULL;
switch (Count) {
case 0: // Linear.
{
cmsFloat64Number SingleGamma = 1.0;
NewGamma = cmsBuildParametricToneCurve(self ->ContextID, 1, &SingleGamma);
if (!NewGamma) return NULL;
*nItems = 1;
return NewGamma;
}
case 1: // Specified as the exponent of gamma function
{
cmsUInt16Number SingleGammaFixed;
cmsFloat64Number SingleGamma;
if (!_cmsReadUInt16Number(io, &SingleGammaFixed)) return NULL;
SingleGamma = _cms8Fixed8toDouble(SingleGammaFixed);
*nItems = 1;
return cmsBuildParametricToneCurve(self ->ContextID, 1, &SingleGamma);
}
default: // Curve
if (Count > 0x7FFF)
return NULL; // This is to prevent bad guys for doing bad things
NewGamma = cmsBuildTabulatedToneCurve16(self ->ContextID, Count, NULL);
if (!NewGamma) return NULL;
if (!_cmsReadUInt16Array(io, Count, NewGamma -> Table16)) return NULL;
*nItems = 1;
return NewGamma;
}
cmsUNUSED_PARAMETER(SizeOfTag);
}
static
cmsBool Type_Curve_Write(struct _cms_typehandler_struct* self, cmsIOHANDLER* io, void* Ptr, cmsUInt32Number nItems)
{
cmsToneCurve* Curve = (cmsToneCurve*) Ptr;
if (Curve ->nSegments == 1 && Curve ->Segments[0].Type == 1) {
// Single gamma, preserve number
cmsUInt16Number SingleGammaFixed = _cmsDoubleTo8Fixed8(Curve ->Segments[0].Params[0]);
if (!_cmsWriteUInt32Number(io, 1)) return FALSE;
if (!_cmsWriteUInt16Number(io, SingleGammaFixed)) return FALSE;
return TRUE;
}
if (!_cmsWriteUInt32Number(io, Curve ->nEntries)) return FALSE;
return _cmsWriteUInt16Array(io, Curve ->nEntries, Curve ->Table16);
cmsUNUSED_PARAMETER(nItems);
cmsUNUSED_PARAMETER(self);
}
static
void* Type_Curve_Dup(struct _cms_typehandler_struct* self, const void *Ptr, cmsUInt32Number n)
{
return (void*) cmsDupToneCurve((cmsToneCurve*) Ptr);
cmsUNUSED_PARAMETER(n);
cmsUNUSED_PARAMETER(self);
}
static
void Type_Curve_Free(struct _cms_typehandler_struct* self, void* Ptr)
{
cmsToneCurve* gamma = (cmsToneCurve*) Ptr;
cmsFreeToneCurve(gamma);
return;
cmsUNUSED_PARAMETER(self);
}
// ********************************************************************************
// Type cmsSigParametricCurveType
// ********************************************************************************
// Decide which curve type to use on writting
static
cmsTagTypeSignature DecideCurveType(cmsFloat64Number ICCVersion, const void *Data)
{
cmsToneCurve* Curve = (cmsToneCurve*) Data;
if (ICCVersion < 4.0) return cmsSigCurveType;
if (Curve ->nSegments != 1) return cmsSigCurveType; // Only 1-segment curves can be saved as parametric
if (Curve ->Segments[0].Type < 0) return cmsSigCurveType; // Only non-inverted curves
if (Curve ->Segments[0].Type > 5) return cmsSigCurveType; // Only ICC parametric curves
return cmsSigParametricCurveType;
}
static
void *Type_ParametricCurve_Read(struct _cms_typehandler_struct* self, cmsIOHANDLER* io, cmsUInt32Number* nItems, cmsUInt32Number SizeOfTag)
{
static const int ParamsByType[] = { 1, 3, 4, 5, 7 };
cmsFloat64Number Params[10];
cmsUInt16Number Type;
int i, n;
cmsToneCurve* NewGamma;
if (!_cmsReadUInt16Number(io, &Type)) return NULL;
if (!_cmsReadUInt16Number(io, NULL)) return NULL; // Reserved
if (Type > 4) {
cmsSignalError(self->ContextID, cmsERROR_UNKNOWN_EXTENSION, "Unknown parametric curve type '%d'", Type);
return NULL;
}
memset(Params, 0, sizeof(Params));
n = ParamsByType[Type];
for (i=0; i < n; i++) {
if (!_cmsRead15Fixed16Number(io, &Params[i])) return NULL;
}
NewGamma = cmsBuildParametricToneCurve(self ->ContextID, Type+1, Params);
*nItems = 1;
return NewGamma;
cmsUNUSED_PARAMETER(SizeOfTag);
}
static
cmsBool Type_ParametricCurve_Write(struct _cms_typehandler_struct* self, cmsIOHANDLER* io, void* Ptr, cmsUInt32Number nItems)
{
cmsToneCurve* Curve = (cmsToneCurve*) Ptr;
int i, nParams, typen;
static const int ParamsByType[] = { 0, 1, 3, 4, 5, 7 };
typen = Curve -> Segments[0].Type;
if (Curve ->nSegments > 1 || typen < 1) {
cmsSignalError(self->ContextID, cmsERROR_UNKNOWN_EXTENSION, "Multisegment or Inverted parametric curves cannot be written");
return FALSE;
}
if (typen > 5) {
cmsSignalError(self->ContextID, cmsERROR_UNKNOWN_EXTENSION, "Unsupported parametric curve");
return FALSE;
}
nParams = ParamsByType[typen];
if (!_cmsWriteUInt16Number(io, (cmsUInt16Number) (Curve ->Segments[0].Type - 1))) return FALSE;
if (!_cmsWriteUInt16Number(io, 0)) return FALSE; // Reserved
for (i=0; i < nParams; i++) {
if (!_cmsWrite15Fixed16Number(io, Curve -> Segments[0].Params[i])) return FALSE;
}
return TRUE;
cmsUNUSED_PARAMETER(nItems);
}
static
void* Type_ParametricCurve_Dup(struct _cms_typehandler_struct* self, const void *Ptr, cmsUInt32Number n)
{
return (void*) cmsDupToneCurve((cmsToneCurve*) Ptr);
cmsUNUSED_PARAMETER(n);
cmsUNUSED_PARAMETER(self);
}
static
void Type_ParametricCurve_Free(struct _cms_typehandler_struct* self, void* Ptr)
{
cmsToneCurve* gamma = (cmsToneCurve*) Ptr;
cmsFreeToneCurve(gamma);
return;
cmsUNUSED_PARAMETER(self);
}
// ********************************************************************************
// Type cmsSigDateTimeType
// ********************************************************************************
// A 12-byte value representation of the time and date, where the byte usage is assigned
// as specified in table 1. The actual values are encoded as 16-bit unsigned integers
// (uInt16Number - see 5.1.6).
//
// All the dateTimeNumber values in a profile shall be in Coordinated Universal Time
// (UTC, also known as GMT or ZULU Time). Profile writers are required to convert local
// time to UTC when setting these values. Programmes that display these values may show
// the dateTimeNumber as UTC, show the equivalent local time (at current locale), or
// display both UTC and local versions of the dateTimeNumber.
static
void *Type_DateTime_Read(struct _cms_typehandler_struct* self, cmsIOHANDLER* io, cmsUInt32Number* nItems, cmsUInt32Number SizeOfTag)
{
cmsDateTimeNumber timestamp;
struct tm * NewDateTime;
*nItems = 0;
NewDateTime = (struct tm*) _cmsMalloc(self ->ContextID, sizeof(struct tm));
if (NewDateTime == NULL) return NULL;
if (io->Read(io, ×tamp, sizeof(cmsDateTimeNumber), 1) != 1) return NULL;
_cmsDecodeDateTimeNumber(×tamp, NewDateTime);
*nItems = 1;
return NewDateTime;
cmsUNUSED_PARAMETER(SizeOfTag);
}
static
cmsBool Type_DateTime_Write(struct _cms_typehandler_struct* self, cmsIOHANDLER* io, void* Ptr, cmsUInt32Number nItems)
{
struct tm * DateTime = (struct tm*) Ptr;
cmsDateTimeNumber timestamp;
_cmsEncodeDateTimeNumber(×tamp, DateTime);
if (!io ->Write(io, sizeof(cmsDateTimeNumber), ×tamp)) return FALSE;
return TRUE;
cmsUNUSED_PARAMETER(nItems);
cmsUNUSED_PARAMETER(self);
}
static
void* Type_DateTime_Dup(struct _cms_typehandler_struct* self, const void *Ptr, cmsUInt32Number n)
{
return _cmsDupMem(self ->ContextID, Ptr, sizeof(struct tm));
cmsUNUSED_PARAMETER(n);
}
static
void Type_DateTime_Free(struct _cms_typehandler_struct* self, void* Ptr)
{
_cmsFree(self ->ContextID, Ptr);
}
// ********************************************************************************
// Type icMeasurementType
// ********************************************************************************
/*
The measurementType information refers only to the internal profile data and is
meant to provide profile makers an alternative to the default measurement
specifications.
*/
static
void *Type_Measurement_Read(struct _cms_typehandler_struct* self, cmsIOHANDLER* io, cmsUInt32Number* nItems, cmsUInt32Number SizeOfTag)
{
cmsICCMeasurementConditions mc;
memset(&mc, 0, sizeof(mc));
if (!_cmsReadUInt32Number(io, &mc.Observer)) return NULL;
if (!_cmsReadXYZNumber(io, &mc.Backing)) return NULL;
if (!_cmsReadUInt32Number(io, &mc.Geometry)) return NULL;
if (!_cmsRead15Fixed16Number(io, &mc.Flare)) return NULL;
if (!_cmsReadUInt32Number(io, &mc.IlluminantType)) return NULL;
*nItems = 1;
return _cmsDupMem(self ->ContextID, &mc, sizeof(cmsICCMeasurementConditions));
cmsUNUSED_PARAMETER(SizeOfTag);
}
static
cmsBool Type_Measurement_Write(struct _cms_typehandler_struct* self, cmsIOHANDLER* io, void* Ptr, cmsUInt32Number nItems)
{
cmsICCMeasurementConditions* mc =(cmsICCMeasurementConditions*) Ptr;
if (!_cmsWriteUInt32Number(io, mc->Observer)) return FALSE;
if (!_cmsWriteXYZNumber(io, &mc->Backing)) return FALSE;
if (!_cmsWriteUInt32Number(io, mc->Geometry)) return FALSE;
if (!_cmsWrite15Fixed16Number(io, mc->Flare)) return FALSE;
if (!_cmsWriteUInt32Number(io, mc->IlluminantType)) return FALSE;
return TRUE;
cmsUNUSED_PARAMETER(nItems);
cmsUNUSED_PARAMETER(self);
}
static
void* Type_Measurement_Dup(struct _cms_typehandler_struct* self, const void *Ptr, cmsUInt32Number n)
{
return _cmsDupMem(self ->ContextID, Ptr, sizeof(cmsICCMeasurementConditions));
cmsUNUSED_PARAMETER(n);
}
static
void Type_Measurement_Free(struct _cms_typehandler_struct* self, void* Ptr)
{
_cmsFree(self ->ContextID, Ptr);
}
// ********************************************************************************
// Type cmsSigMultiLocalizedUnicodeType
// ********************************************************************************
//
// Do NOT trust SizeOfTag as there is an issue on the definition of profileSequenceDescTag. See the TechNote from
// Max Derhak and Rohit Patil about this: basically the size of the string table should be guessed and cannot be
// taken from the size of tag if this tag is embedded as part of bigger structures (profileSequenceDescTag, for instance)
//
static
void *Type_MLU_Read(struct _cms_typehandler_struct* self, cmsIOHANDLER* io, cmsUInt32Number* nItems, cmsUInt32Number SizeOfTag)
{
cmsMLU* mlu;
cmsUInt32Number Count, RecLen, NumOfWchar;
cmsUInt32Number SizeOfHeader;
cmsUInt32Number Len, Offset;
cmsUInt32Number i;
wchar_t* Block;
cmsUInt32Number BeginOfThisString, EndOfThisString, LargestPosition;
*nItems = 0;
if (!_cmsReadUInt32Number(io, &Count)) return NULL;
if (!_cmsReadUInt32Number(io, &RecLen)) return NULL;
if (RecLen != 12) {
cmsSignalError(self->ContextID, cmsERROR_UNKNOWN_EXTENSION, "multiLocalizedUnicodeType of len != 12 is not supported.");
return NULL;
}
mlu = cmsMLUalloc(self ->ContextID, Count);
if (mlu == NULL) return NULL;
mlu ->UsedEntries = Count;
SizeOfHeader = 12 * Count + sizeof(_cmsTagBase);
LargestPosition = 0;
for (i=0; i < Count; i++) {
if (!_cmsReadUInt16Number(io, &mlu ->Entries[i].Language)) goto Error;
if (!_cmsReadUInt16Number(io, &mlu ->Entries[i].Country)) goto Error;
// Now deal with Len and offset.
if (!_cmsReadUInt32Number(io, &Len)) goto Error;
if (!_cmsReadUInt32Number(io, &Offset)) goto Error;
// Check for overflow
if (Offset < (SizeOfHeader + 8)) goto Error;
// True begin of the string
BeginOfThisString = Offset - SizeOfHeader - 8;
// Ajust to wchar_t elements
mlu ->Entries[i].Len = (Len * sizeof(wchar_t)) / sizeof(cmsUInt16Number);
mlu ->Entries[i].StrW = (BeginOfThisString * sizeof(wchar_t)) / sizeof(cmsUInt16Number);
// To guess maximum size, add offset + len
EndOfThisString = BeginOfThisString + Len;
if (EndOfThisString > LargestPosition)
LargestPosition = EndOfThisString;
}
// Now read the remaining of tag and fill all strings. Substract the directory
SizeOfTag = (LargestPosition * sizeof(wchar_t)) / sizeof(cmsUInt16Number);
if (SizeOfTag == 0)
{
Block = NULL;
NumOfWchar = 0;
}
else
{
Block = (wchar_t*) _cmsMalloc(self ->ContextID, SizeOfTag);
if (Block == NULL) goto Error;
NumOfWchar = SizeOfTag / sizeof(wchar_t);
if (!_cmsReadWCharArray(io, NumOfWchar, Block)) goto Error;
}
mlu ->MemPool = Block;
mlu ->PoolSize = SizeOfTag;
mlu ->PoolUsed = SizeOfTag;
*nItems = 1;
return (void*) mlu;
Error:
if (mlu) cmsMLUfree(mlu);
return NULL;
}
static
cmsBool Type_MLU_Write(struct _cms_typehandler_struct* self, cmsIOHANDLER* io, void* Ptr, cmsUInt32Number nItems)
{
cmsMLU* mlu =(cmsMLU*) Ptr;
cmsUInt32Number HeaderSize;
cmsUInt32Number Len, Offset;
int i;
if (Ptr == NULL) {
// Empty placeholder
if (!_cmsWriteUInt32Number(io, 0)) return FALSE;
if (!_cmsWriteUInt32Number(io, 12)) return FALSE;
return TRUE;
}
if (!_cmsWriteUInt32Number(io, mlu ->UsedEntries)) return FALSE;
if (!_cmsWriteUInt32Number(io, 12)) return FALSE;
HeaderSize = 12 * mlu ->UsedEntries + sizeof(_cmsTagBase);
for (i=0; i < mlu ->UsedEntries; i++) {
Len = mlu ->Entries[i].Len;
Offset = mlu ->Entries[i].StrW;
Len = (Len * sizeof(cmsUInt16Number)) / sizeof(wchar_t);
Offset = (Offset * sizeof(cmsUInt16Number)) / sizeof(wchar_t) + HeaderSize + 8;
if (!_cmsWriteUInt16Number(io, mlu ->Entries[i].Language)) return FALSE;
if (!_cmsWriteUInt16Number(io, mlu ->Entries[i].Country)) return FALSE;
if (!_cmsWriteUInt32Number(io, Len)) return FALSE;
if (!_cmsWriteUInt32Number(io, Offset)) return FALSE;
}
if (!_cmsWriteWCharArray(io, mlu ->PoolUsed / sizeof(wchar_t), (wchar_t*) mlu ->MemPool)) return FALSE;
return TRUE;
cmsUNUSED_PARAMETER(nItems);
cmsUNUSED_PARAMETER(self);
}
static
void* Type_MLU_Dup(struct _cms_typehandler_struct* self, const void *Ptr, cmsUInt32Number n)
{
return (void*) cmsMLUdup((cmsMLU*) Ptr);
cmsUNUSED_PARAMETER(n);
cmsUNUSED_PARAMETER(self);
}
static
void Type_MLU_Free(struct _cms_typehandler_struct* self, void* Ptr)
{
cmsMLUfree((cmsMLU*) Ptr);
return;
cmsUNUSED_PARAMETER(self);
}
// ********************************************************************************
// Type cmsSigLut8Type
// ********************************************************************************
// Decide which LUT type to use on writting
static
cmsTagTypeSignature DecideLUTtypeA2B(cmsFloat64Number ICCVersion, const void *Data)
{
cmsPipeline* Lut = (cmsPipeline*) Data;
if (ICCVersion < 4.0) {
if (Lut ->SaveAs8Bits) return cmsSigLut8Type;
return cmsSigLut16Type;
}
else {
return cmsSigLutAtoBType;
}
}
static
cmsTagTypeSignature DecideLUTtypeB2A(cmsFloat64Number ICCVersion, const void *Data)
{
cmsPipeline* Lut = (cmsPipeline*) Data;
if (ICCVersion < 4.0) {
if (Lut ->SaveAs8Bits) return cmsSigLut8Type;
return cmsSigLut16Type;
}
else {
return cmsSigLutBtoAType;
}
}
/*
This structure represents a colour transform using tables of 8-bit precision.
This type contains four processing elements: a 3 by 3 matrix (which shall be
the identity matrix unless the input colour space is XYZ), a set of one dimensional
input tables, a multidimensional lookup table, and a set of one dimensional output
tables. Data is processed using these elements via the following sequence:
(matrix) -> (1d input tables) -> (multidimensional lookup table - CLUT) -> (1d output tables)
Byte Position Field Length (bytes) Content Encoded as...
8 1 Number of Input Channels (i) uInt8Number
9 1 Number of Output Channels (o) uInt8Number
10 1 Number of CLUT grid points (identical for each side) (g) uInt8Number
11 1 Reserved for padding (fill with 00h)
12..15 4 Encoded e00 parameter s15Fixed16Number
*/
// Read 8 bit tables as gamma functions
static
cmsBool Read8bitTables(cmsContext ContextID, cmsIOHANDLER* io, cmsPipeline* lut, int nChannels)
{
cmsUInt8Number* Temp = NULL;
int i, j;
cmsToneCurve* Tables[cmsMAXCHANNELS];
if (nChannels > cmsMAXCHANNELS) return FALSE;
if (nChannels <= 0) return FALSE;
memset(Tables, 0, sizeof(Tables));
Temp = (cmsUInt8Number*) _cmsMalloc(ContextID, 256);
if (Temp == NULL) return FALSE;
for (i=0; i < nChannels; i++) {
Tables[i] = cmsBuildTabulatedToneCurve16(ContextID, 256, NULL);
if (Tables[i] == NULL) goto Error;
}
for (i=0; i < nChannels; i++) {
if (io ->Read(io, Temp, 256, 1) != 1) goto Error;
for (j=0; j < 256; j++)
Tables[i]->Table16[j] = (cmsUInt16Number) FROM_8_TO_16(Temp[j]);
}
_cmsFree(ContextID, Temp);
Temp = NULL;
if (!cmsPipelineInsertStage(lut, cmsAT_END, cmsStageAllocToneCurves(ContextID, nChannels, Tables)))
goto Error;
for (i=0; i < nChannels; i++)
cmsFreeToneCurve(Tables[i]);
return TRUE;
Error:
for (i=0; i < nChannels; i++) {
if (Tables[i]) cmsFreeToneCurve(Tables[i]);
}
if (Temp) _cmsFree(ContextID, Temp);
return FALSE;
}
static
cmsBool Write8bitTables(cmsContext ContextID, cmsIOHANDLER* io, cmsUInt32Number n, _cmsStageToneCurvesData* Tables)
{
int j;
cmsUInt32Number i;
cmsUInt8Number val;
for (i=0; i < n; i++) {
if (Tables) {
// Usual case of identity curves
if ((Tables ->TheCurves[i]->nEntries == 2) &&
(Tables->TheCurves[i]->Table16[0] == 0) &&
(Tables->TheCurves[i]->Table16[1] == 65535)) {
for (j=0; j < 256; j++) {
if (!_cmsWriteUInt8Number(io, (cmsUInt8Number) j)) return FALSE;
}
}
else
if (Tables ->TheCurves[i]->nEntries != 256) {
cmsSignalError(ContextID, cmsERROR_RANGE, "LUT8 needs 256 entries on prelinearization");
return FALSE;
}
else
for (j=0; j < 256; j++) {
if (Tables != NULL)
val = (cmsUInt8Number) FROM_16_TO_8(Tables->TheCurves[i]->Table16[j]);
else
val = (cmsUInt8Number) j;
if (!_cmsWriteUInt8Number(io, val)) return FALSE;
}
}
}
return TRUE;
}
// Check overflow
static
cmsUInt32Number uipow(cmsUInt32Number n, cmsUInt32Number a, cmsUInt32Number b)
{
cmsUInt32Number rv = 1, rc;
if (a == 0) return 0;
if (n == 0) return 0;
for (; b > 0; b--) {
rv *= a;
// Check for overflow
if (rv > UINT_MAX / a) return (cmsUInt32Number) -1;
}
rc = rv * n;
if (rv != rc / n) return (cmsUInt32Number) -1;
return rc;
}
// That will create a MPE LUT with Matrix, pre tables, CLUT and post tables.
// 8 bit lut may be scaled easely to v4 PCS, but we need also to properly adjust
// PCS on BToAxx tags and AtoB if abstract. We need to fix input direction.
static
void *Type_LUT8_Read(struct _cms_typehandler_struct* self, cmsIOHANDLER* io, cmsUInt32Number* nItems, cmsUInt32Number SizeOfTag)
{
cmsUInt8Number InputChannels, OutputChannels, CLUTpoints;
cmsUInt8Number* Temp = NULL;
cmsPipeline* NewLUT = NULL;
cmsUInt32Number nTabSize, i;
cmsFloat64Number Matrix[3*3];
*nItems = 0;
if (!_cmsReadUInt8Number(io, &InputChannels)) goto Error;
if (!_cmsReadUInt8Number(io, &OutputChannels)) goto Error;
if (!_cmsReadUInt8Number(io, &CLUTpoints)) goto Error;
if (CLUTpoints == 1) goto Error; // Impossible value, 0 for no CLUT and then 2 at least
// Padding
if (!_cmsReadUInt8Number(io, NULL)) goto Error;
// Do some checking
if (InputChannels > cmsMAXCHANNELS) goto Error;
if (OutputChannels > cmsMAXCHANNELS) goto Error;
// Allocates an empty Pipeline
NewLUT = cmsPipelineAlloc(self ->ContextID, InputChannels, OutputChannels);
if (NewLUT == NULL) goto Error;
// Read the Matrix
if (!_cmsRead15Fixed16Number(io, &Matrix[0])) goto Error;
if (!_cmsRead15Fixed16Number(io, &Matrix[1])) goto Error;
if (!_cmsRead15Fixed16Number(io, &Matrix[2])) goto Error;
if (!_cmsRead15Fixed16Number(io, &Matrix[3])) goto Error;
if (!_cmsRead15Fixed16Number(io, &Matrix[4])) goto Error;
if (!_cmsRead15Fixed16Number(io, &Matrix[5])) goto Error;
if (!_cmsRead15Fixed16Number(io, &Matrix[6])) goto Error;
if (!_cmsRead15Fixed16Number(io, &Matrix[7])) goto Error;
if (!_cmsRead15Fixed16Number(io, &Matrix[8])) goto Error;
// Only operates if not identity...
if ((InputChannels == 3) && !_cmsMAT3isIdentity((cmsMAT3*) Matrix)) {
if (!cmsPipelineInsertStage(NewLUT, cmsAT_BEGIN, cmsStageAllocMatrix(self ->ContextID, 3, 3, Matrix, NULL)))
goto Error;
}
// Get input tables
if (!Read8bitTables(self ->ContextID, io, NewLUT, InputChannels)) goto Error;
// Get 3D CLUT. Check the overflow....
nTabSize = uipow(OutputChannels, CLUTpoints, InputChannels);
if (nTabSize == (cmsUInt32Number) -1) goto Error;
if (nTabSize > 0) {
cmsUInt16Number *PtrW, *T;
PtrW = T = (cmsUInt16Number*) _cmsCalloc(self ->ContextID, nTabSize, sizeof(cmsUInt16Number));
if (T == NULL) goto Error;
Temp = (cmsUInt8Number*) _cmsMalloc(self ->ContextID, nTabSize);
if (Temp == NULL) goto Error;
if (io ->Read(io, Temp, nTabSize, 1) != 1) goto Error;
for (i = 0; i < nTabSize; i++) {
*PtrW++ = FROM_8_TO_16(Temp[i]);
}
_cmsFree(self ->ContextID, Temp);
Temp = NULL;
if (!cmsPipelineInsertStage(NewLUT, cmsAT_END, cmsStageAllocCLut16bit(self ->ContextID, CLUTpoints, InputChannels, OutputChannels, T)))
goto Error;
_cmsFree(self ->ContextID, T);
}
// Get output tables
if (!Read8bitTables(self ->ContextID, io, NewLUT, OutputChannels)) goto Error;
*nItems = 1;
return NewLUT;
Error:
if (NewLUT != NULL) cmsPipelineFree(NewLUT);
return NULL;
cmsUNUSED_PARAMETER(SizeOfTag);
}
// We only allow a specific MPE structure: Matrix plus prelin, plus clut, plus post-lin.
static
cmsBool Type_LUT8_Write(struct _cms_typehandler_struct* self, cmsIOHANDLER* io, void* Ptr, cmsUInt32Number nItems)
{
cmsUInt32Number j, nTabSize;
cmsUInt8Number val;
cmsPipeline* NewLUT = (cmsPipeline*) Ptr;
cmsStage* mpe;
_cmsStageToneCurvesData* PreMPE = NULL, *PostMPE = NULL;
_cmsStageMatrixData* MatMPE = NULL;
_cmsStageCLutData* clut = NULL;
int clutPoints;
// Disassemble the LUT into components.
mpe = NewLUT -> Elements;
if (mpe ->Type == cmsSigMatrixElemType) {
MatMPE = (_cmsStageMatrixData*) mpe ->Data;
mpe = mpe -> Next;
}
if (mpe != NULL && mpe ->Type == cmsSigCurveSetElemType) {
PreMPE = (_cmsStageToneCurvesData*) mpe ->Data;
mpe = mpe -> Next;
}
if (mpe != NULL && mpe ->Type == cmsSigCLutElemType) {
clut = (_cmsStageCLutData*) mpe -> Data;
mpe = mpe ->Next;
}
if (mpe != NULL && mpe ->Type == cmsSigCurveSetElemType) {
PostMPE = (_cmsStageToneCurvesData*) mpe ->Data;
mpe = mpe -> Next;
}
// That should be all
if (mpe != NULL) {
cmsSignalError(mpe->ContextID, cmsERROR_UNKNOWN_EXTENSION, "LUT is not suitable to be saved as LUT8");
return FALSE;
}
if (clut == NULL)
clutPoints = 0;
else
clutPoints = clut->Params->nSamples[0];
if (!_cmsWriteUInt8Number(io, (cmsUInt8Number) NewLUT ->InputChannels)) return FALSE;
if (!_cmsWriteUInt8Number(io, (cmsUInt8Number) NewLUT ->OutputChannels)) return FALSE;
if (!_cmsWriteUInt8Number(io, (cmsUInt8Number) clutPoints)) return FALSE;
if (!_cmsWriteUInt8Number(io, 0)) return FALSE; // Padding
if (MatMPE != NULL) {
if (!_cmsWrite15Fixed16Number(io, MatMPE -> Double[0])) return FALSE;
if (!_cmsWrite15Fixed16Number(io, MatMPE -> Double[1])) return FALSE;
if (!_cmsWrite15Fixed16Number(io, MatMPE -> Double[2])) return FALSE;
if (!_cmsWrite15Fixed16Number(io, MatMPE -> Double[3])) return FALSE;
if (!_cmsWrite15Fixed16Number(io, MatMPE -> Double[4])) return FALSE;
if (!_cmsWrite15Fixed16Number(io, MatMPE -> Double[5])) return FALSE;
if (!_cmsWrite15Fixed16Number(io, MatMPE -> Double[6])) return FALSE;
if (!_cmsWrite15Fixed16Number(io, MatMPE -> Double[7])) return FALSE;
if (!_cmsWrite15Fixed16Number(io, MatMPE -> Double[8])) return FALSE;
}
else {
if (!_cmsWrite15Fixed16Number(io, 1)) return FALSE;
if (!_cmsWrite15Fixed16Number(io, 0)) return FALSE;
if (!_cmsWrite15Fixed16Number(io, 0)) return FALSE;
if (!_cmsWrite15Fixed16Number(io, 0)) return FALSE;
if (!_cmsWrite15Fixed16Number(io, 1)) return FALSE;
if (!_cmsWrite15Fixed16Number(io, 0)) return FALSE;
if (!_cmsWrite15Fixed16Number(io, 0)) return FALSE;
if (!_cmsWrite15Fixed16Number(io, 0)) return FALSE;
if (!_cmsWrite15Fixed16Number(io, 1)) return FALSE;
}
// The prelinearization table
if (!Write8bitTables(self ->ContextID, io, NewLUT ->InputChannels, PreMPE)) return FALSE;
nTabSize = uipow(NewLUT->OutputChannels, clutPoints, NewLUT ->InputChannels);
if (nTabSize == (cmsUInt32Number) -1) return FALSE;
if (nTabSize > 0) {
// The 3D CLUT.
if (clut != NULL) {
for (j=0; j < nTabSize; j++) {
val = (cmsUInt8Number) FROM_16_TO_8(clut ->Tab.T[j]);
if (!_cmsWriteUInt8Number(io, val)) return FALSE;
}
}
}
// The postlinearization table
if (!Write8bitTables(self ->ContextID, io, NewLUT ->OutputChannels, PostMPE)) return FALSE;
return TRUE;
cmsUNUSED_PARAMETER(nItems);
}
static
void* Type_LUT8_Dup(struct _cms_typehandler_struct* self, const void *Ptr, cmsUInt32Number n)
{
return (void*) cmsPipelineDup((cmsPipeline*) Ptr);
cmsUNUSED_PARAMETER(n);
cmsUNUSED_PARAMETER(self);
}
static
void Type_LUT8_Free(struct _cms_typehandler_struct* self, void* Ptr)
{
cmsPipelineFree((cmsPipeline*) Ptr);
return;
cmsUNUSED_PARAMETER(self);
}
// ********************************************************************************
// Type cmsSigLut16Type
// ********************************************************************************
// Read 16 bit tables as gamma functions
static
cmsBool Read16bitTables(cmsContext ContextID, cmsIOHANDLER* io, cmsPipeline* lut, int nChannels, int nEntries)
{
int i;
cmsToneCurve* Tables[cmsMAXCHANNELS];
// Maybe an empty table? (this is a lcms extension)
if (nEntries <= 0) return TRUE;
// Check for malicious profiles
if (nEntries < 2) return FALSE;
if (nChannels > cmsMAXCHANNELS) return FALSE;
// Init table to zero
memset(Tables, 0, sizeof(Tables));
for (i=0; i < nChannels; i++) {
Tables[i] = cmsBuildTabulatedToneCurve16(ContextID, nEntries, NULL);
if (Tables[i] == NULL) goto Error;
if (!_cmsReadUInt16Array(io, nEntries, Tables[i]->Table16)) goto Error;
}
// Add the table (which may certainly be an identity, but this is up to the optimizer, not the reading code)
if (!cmsPipelineInsertStage(lut, cmsAT_END, cmsStageAllocToneCurves(ContextID, nChannels, Tables)))
goto Error;
for (i=0; i < nChannels; i++)
cmsFreeToneCurve(Tables[i]);
return TRUE;
Error:
for (i=0; i < nChannels; i++) {
if (Tables[i]) cmsFreeToneCurve(Tables[i]);
}
return FALSE;
}
static
cmsBool Write16bitTables(cmsContext ContextID, cmsIOHANDLER* io, _cmsStageToneCurvesData* Tables)
{
int j;
cmsUInt32Number i;
cmsUInt16Number val;
int nEntries;
_cmsAssert(Tables != NULL);
nEntries = Tables->TheCurves[0]->nEntries;
for (i=0; i < Tables ->nCurves; i++) {
for (j=0; j < nEntries; j++) {
val = Tables->TheCurves[i]->Table16[j];
if (!_cmsWriteUInt16Number(io, val)) return FALSE;
}
}
return TRUE;
cmsUNUSED_PARAMETER(ContextID);
}
static
void *Type_LUT16_Read(struct _cms_typehandler_struct* self, cmsIOHANDLER* io, cmsUInt32Number* nItems, cmsUInt32Number SizeOfTag)
{
cmsUInt8Number InputChannels, OutputChannels, CLUTpoints;
cmsPipeline* NewLUT = NULL;
cmsUInt32Number nTabSize;
cmsFloat64Number Matrix[3*3];
cmsUInt16Number InputEntries, OutputEntries;
*nItems = 0;
if (!_cmsReadUInt8Number(io, &InputChannels)) return NULL;
if (!_cmsReadUInt8Number(io, &OutputChannels)) return NULL;
if (!_cmsReadUInt8Number(io, &CLUTpoints)) return NULL; // 255 maximum
// Padding
if (!_cmsReadUInt8Number(io, NULL)) return NULL;
// Do some checking
if (InputChannels > cmsMAXCHANNELS) goto Error;
if (OutputChannels > cmsMAXCHANNELS) goto Error;
// Allocates an empty LUT
NewLUT = cmsPipelineAlloc(self ->ContextID, InputChannels, OutputChannels);
if (NewLUT == NULL) goto Error;
// Read the Matrix
if (!_cmsRead15Fixed16Number(io, &Matrix[0])) goto Error;
if (!_cmsRead15Fixed16Number(io, &Matrix[1])) goto Error;
if (!_cmsRead15Fixed16Number(io, &Matrix[2])) goto Error;
if (!_cmsRead15Fixed16Number(io, &Matrix[3])) goto Error;
if (!_cmsRead15Fixed16Number(io, &Matrix[4])) goto Error;
if (!_cmsRead15Fixed16Number(io, &Matrix[5])) goto Error;
if (!_cmsRead15Fixed16Number(io, &Matrix[6])) goto Error;
if (!_cmsRead15Fixed16Number(io, &Matrix[7])) goto Error;
if (!_cmsRead15Fixed16Number(io, &Matrix[8])) goto Error;
// Only operates on 3 channels
if ((InputChannels == 3) && !_cmsMAT3isIdentity((cmsMAT3*) Matrix)) {
if (!cmsPipelineInsertStage(NewLUT, cmsAT_END, cmsStageAllocMatrix(self ->ContextID, 3, 3, Matrix, NULL)))
goto Error;
}
if (!_cmsReadUInt16Number(io, &InputEntries)) goto Error;
if (!_cmsReadUInt16Number(io, &OutputEntries)) goto Error;
if (InputEntries > 0x7FFF || OutputEntries > 0x7FFF) goto Error;
if (CLUTpoints == 1) goto Error; // Impossible value, 0 for no CLUT and then 2 at least
// Get input tables
if (!Read16bitTables(self ->ContextID, io, NewLUT, InputChannels, InputEntries)) goto Error;
// Get 3D CLUT
nTabSize = uipow(OutputChannels, CLUTpoints, InputChannels);
if (nTabSize == (cmsUInt32Number) -1) goto Error;
if (nTabSize > 0) {
cmsUInt16Number *T;
T = (cmsUInt16Number*) _cmsCalloc(self ->ContextID, nTabSize, sizeof(cmsUInt16Number));
if (T == NULL) goto Error;
if (!_cmsReadUInt16Array(io, nTabSize, T)) {
_cmsFree(self ->ContextID, T);
goto Error;
}
if (!cmsPipelineInsertStage(NewLUT, cmsAT_END, cmsStageAllocCLut16bit(self ->ContextID, CLUTpoints, InputChannels, OutputChannels, T))) {
_cmsFree(self ->ContextID, T);
goto Error;
}
_cmsFree(self ->ContextID, T);
}
// Get output tables
if (!Read16bitTables(self ->ContextID, io, NewLUT, OutputChannels, OutputEntries)) goto Error;
*nItems = 1;
return NewLUT;
Error:
if (NewLUT != NULL) cmsPipelineFree(NewLUT);
return NULL;
cmsUNUSED_PARAMETER(SizeOfTag);
}
// We only allow some specific MPE structures: Matrix plus prelin, plus clut, plus post-lin.
// Some empty defaults are created for missing parts
static
cmsBool Type_LUT16_Write(struct _cms_typehandler_struct* self, cmsIOHANDLER* io, void* Ptr, cmsUInt32Number nItems)
{
cmsUInt32Number nTabSize;
cmsPipeline* NewLUT = (cmsPipeline*) Ptr;
cmsStage* mpe;
_cmsStageToneCurvesData* PreMPE = NULL, *PostMPE = NULL;
_cmsStageMatrixData* MatMPE = NULL;
_cmsStageCLutData* clut = NULL;
int i, InputChannels, OutputChannels, clutPoints;
// Disassemble the LUT into components.
mpe = NewLUT -> Elements;
if (mpe != NULL && mpe ->Type == cmsSigMatrixElemType) {
MatMPE = (_cmsStageMatrixData*) mpe ->Data;
mpe = mpe -> Next;
}
if (mpe != NULL && mpe ->Type == cmsSigCurveSetElemType) {
PreMPE = (_cmsStageToneCurvesData*) mpe ->Data;
mpe = mpe -> Next;
}
if (mpe != NULL && mpe ->Type == cmsSigCLutElemType) {
clut = (_cmsStageCLutData*) mpe -> Data;
mpe = mpe ->Next;
}
if (mpe != NULL && mpe ->Type == cmsSigCurveSetElemType) {
PostMPE = (_cmsStageToneCurvesData*) mpe ->Data;
mpe = mpe -> Next;
}
// That should be all
if (mpe != NULL) {
cmsSignalError(mpe->ContextID, cmsERROR_UNKNOWN_EXTENSION, "LUT is not suitable to be saved as LUT16");
return FALSE;
}
InputChannels = cmsPipelineInputChannels(NewLUT);
OutputChannels = cmsPipelineOutputChannels(NewLUT);
if (clut == NULL)
clutPoints = 0;
else
clutPoints = clut->Params->nSamples[0];
if (!_cmsWriteUInt8Number(io, (cmsUInt8Number) InputChannels)) return FALSE;
if (!_cmsWriteUInt8Number(io, (cmsUInt8Number) OutputChannels)) return FALSE;
if (!_cmsWriteUInt8Number(io, (cmsUInt8Number) clutPoints)) return FALSE;
if (!_cmsWriteUInt8Number(io, 0)) return FALSE; // Padding
if (MatMPE != NULL) {
if (!_cmsWrite15Fixed16Number(io, MatMPE -> Double[0])) return FALSE;
if (!_cmsWrite15Fixed16Number(io, MatMPE -> Double[1])) return FALSE;
if (!_cmsWrite15Fixed16Number(io, MatMPE -> Double[2])) return FALSE;
if (!_cmsWrite15Fixed16Number(io, MatMPE -> Double[3])) return FALSE;
if (!_cmsWrite15Fixed16Number(io, MatMPE -> Double[4])) return FALSE;
if (!_cmsWrite15Fixed16Number(io, MatMPE -> Double[5])) return FALSE;
if (!_cmsWrite15Fixed16Number(io, MatMPE -> Double[6])) return FALSE;
if (!_cmsWrite15Fixed16Number(io, MatMPE -> Double[7])) return FALSE;
if (!_cmsWrite15Fixed16Number(io, MatMPE -> Double[8])) return FALSE;
}
else {
if (!_cmsWrite15Fixed16Number(io, 1)) return FALSE;
if (!_cmsWrite15Fixed16Number(io, 0)) return FALSE;
if (!_cmsWrite15Fixed16Number(io, 0)) return FALSE;
if (!_cmsWrite15Fixed16Number(io, 0)) return FALSE;
if (!_cmsWrite15Fixed16Number(io, 1)) return FALSE;
if (!_cmsWrite15Fixed16Number(io, 0)) return FALSE;
if (!_cmsWrite15Fixed16Number(io, 0)) return FALSE;
if (!_cmsWrite15Fixed16Number(io, 0)) return FALSE;
if (!_cmsWrite15Fixed16Number(io, 1)) return FALSE;
}
if (PreMPE != NULL) {
if (!_cmsWriteUInt16Number(io, (cmsUInt16Number) PreMPE ->TheCurves[0]->nEntries)) return FALSE;
} else {
if (!_cmsWriteUInt16Number(io, 2)) return FALSE;
}
if (PostMPE != NULL) {
if (!_cmsWriteUInt16Number(io, (cmsUInt16Number) PostMPE ->TheCurves[0]->nEntries)) return FALSE;
} else {
if (!_cmsWriteUInt16Number(io, 2)) return FALSE;
}
// The prelinearization table
if (PreMPE != NULL) {
if (!Write16bitTables(self ->ContextID, io, PreMPE)) return FALSE;
}
else {
for (i=0; i < InputChannels; i++) {
if (!_cmsWriteUInt16Number(io, 0)) return FALSE;
if (!_cmsWriteUInt16Number(io, 0xffff)) return FALSE;
}
}
nTabSize = uipow(OutputChannels, clutPoints, InputChannels);
if (nTabSize == (cmsUInt32Number) -1) return FALSE;
if (nTabSize > 0) {
// The 3D CLUT.
if (clut != NULL) {
if (!_cmsWriteUInt16Array(io, nTabSize, clut->Tab.T)) return FALSE;
}
}
// The postlinearization table
if (PostMPE != NULL) {
if (!Write16bitTables(self ->ContextID, io, PostMPE)) return FALSE;
}
else {
for (i=0; i < OutputChannels; i++) {
if (!_cmsWriteUInt16Number(io, 0)) return FALSE;
if (!_cmsWriteUInt16Number(io, 0xffff)) return FALSE;
}
}
return TRUE;
cmsUNUSED_PARAMETER(nItems);
}
static
void* Type_LUT16_Dup(struct _cms_typehandler_struct* self, const void *Ptr, cmsUInt32Number n)
{
return (void*) cmsPipelineDup((cmsPipeline*) Ptr);
cmsUNUSED_PARAMETER(n);
cmsUNUSED_PARAMETER(self);
}
static
void Type_LUT16_Free(struct _cms_typehandler_struct* self, void* Ptr)
{
cmsPipelineFree((cmsPipeline*) Ptr);
return;
cmsUNUSED_PARAMETER(self);
}
// ********************************************************************************
// Type cmsSigLutAToBType
// ********************************************************************************
// V4 stuff. Read matrix for LutAtoB and LutBtoA
static
cmsStage* ReadMatrix(struct _cms_typehandler_struct* self, cmsIOHANDLER* io, cmsUInt32Number Offset)
{
cmsFloat64Number dMat[3*3];
cmsFloat64Number dOff[3];
cmsStage* Mat;
// Go to address
if (!io -> Seek(io, Offset)) return NULL;
// Read the Matrix
if (!_cmsRead15Fixed16Number(io, &dMat[0])) return NULL;
if (!_cmsRead15Fixed16Number(io, &dMat[1])) return NULL;
if (!_cmsRead15Fixed16Number(io, &dMat[2])) return NULL;
if (!_cmsRead15Fixed16Number(io, &dMat[3])) return NULL;
if (!_cmsRead15Fixed16Number(io, &dMat[4])) return NULL;
if (!_cmsRead15Fixed16Number(io, &dMat[5])) return NULL;
if (!_cmsRead15Fixed16Number(io, &dMat[6])) return NULL;
if (!_cmsRead15Fixed16Number(io, &dMat[7])) return NULL;
if (!_cmsRead15Fixed16Number(io, &dMat[8])) return NULL;
if (!_cmsRead15Fixed16Number(io, &dOff[0])) return NULL;
if (!_cmsRead15Fixed16Number(io, &dOff[1])) return NULL;
if (!_cmsRead15Fixed16Number(io, &dOff[2])) return NULL;
Mat = cmsStageAllocMatrix(self ->ContextID, 3, 3, dMat, dOff);
return Mat;
}
// V4 stuff. Read CLUT part for LutAtoB and LutBtoA
static
cmsStage* ReadCLUT(struct _cms_typehandler_struct* self, cmsIOHANDLER* io, cmsUInt32Number Offset, int InputChannels, int OutputChannels)
{
cmsUInt8Number gridPoints8[cmsMAXCHANNELS]; // Number of grid points in each dimension.
cmsUInt32Number GridPoints[cmsMAXCHANNELS], i;
cmsUInt8Number Precision;
cmsStage* CLUT;
_cmsStageCLutData* Data;
if (!io -> Seek(io, Offset)) return NULL;
if (io -> Read(io, gridPoints8, cmsMAXCHANNELS, 1) != 1) return NULL;
for (i=0; i < cmsMAXCHANNELS; i++) {
if (gridPoints8[i] == 1) return NULL; // Impossible value, 0 for no CLUT and then 2 at least
GridPoints[i] = gridPoints8[i];
}
if (!_cmsReadUInt8Number(io, &Precision)) return NULL;
if (!_cmsReadUInt8Number(io, NULL)) return NULL;
if (!_cmsReadUInt8Number(io, NULL)) return NULL;
if (!_cmsReadUInt8Number(io, NULL)) return NULL;
CLUT = cmsStageAllocCLut16bitGranular(self ->ContextID, GridPoints, InputChannels, OutputChannels, NULL);
if (CLUT == NULL) return NULL;
Data = (_cmsStageCLutData*) CLUT ->Data;
// Precision can be 1 or 2 bytes
if (Precision == 1) {
cmsUInt8Number v;
for (i=0; i < Data ->nEntries; i++) {
if (io ->Read(io, &v, sizeof(cmsUInt8Number), 1) != 1) return NULL;
Data ->Tab.T[i] = FROM_8_TO_16(v);
}
}
else
if (Precision == 2) {
if (!_cmsReadUInt16Array(io, Data->nEntries, Data ->Tab.T)) return NULL;
}
else {
cmsSignalError(self ->ContextID, cmsERROR_UNKNOWN_EXTENSION, "Unknown precision of '%d'", Precision);
return NULL;
}
return CLUT;
}
static
cmsToneCurve* ReadEmbeddedCurve(struct _cms_typehandler_struct* self, cmsIOHANDLER* io)
{
cmsTagTypeSignature BaseType;
cmsUInt32Number nItems;
BaseType = _cmsReadTypeBase(io);
switch (BaseType) {
case cmsSigCurveType:
return (cmsToneCurve*) Type_Curve_Read(self, io, &nItems, 0);
case cmsSigParametricCurveType:
return (cmsToneCurve*) Type_ParametricCurve_Read(self, io, &nItems, 0);
default:
{
char String[5];
_cmsTagSignature2String(String, (cmsTagSignature) BaseType);
cmsSignalError(self ->ContextID, cmsERROR_UNKNOWN_EXTENSION, "Unknown curve type '%s'", String);
}
return NULL;
}
}
// Read a set of curves from specific offset
static
cmsStage* ReadSetOfCurves(struct _cms_typehandler_struct* self, cmsIOHANDLER* io, cmsUInt32Number Offset, cmsUInt32Number nCurves)
{
cmsToneCurve* Curves[cmsMAXCHANNELS];
cmsUInt32Number i;
cmsStage* Lin = NULL;
if (nCurves > cmsMAXCHANNELS) return FALSE;
if (!io -> Seek(io, Offset)) return FALSE;
for (i=0; i < nCurves; i++)
Curves[i] = NULL;
for (i=0; i < nCurves; i++) {
Curves[i] = ReadEmbeddedCurve(self, io);
if (Curves[i] == NULL) goto Error;
if (!_cmsReadAlignment(io)) goto Error;
}
Lin = cmsStageAllocToneCurves(self ->ContextID, nCurves, Curves);
Error:
for (i=0; i < nCurves; i++)
cmsFreeToneCurve(Curves[i]);
return Lin;
}
// LutAtoB type
// This structure represents a colour transform. The type contains up to five processing
// elements which are stored in the AtoBTag tag in the following order: a set of one
// dimensional curves, a 3 by 3 matrix with offset terms, a set of one dimensional curves,
// a multidimensional lookup table, and a set of one dimensional output curves.
// Data are processed using these elements via the following sequence:
//
//("A" curves) -> (multidimensional lookup table - CLUT) -> ("M" curves) -> (matrix) -> ("B" curves).
//
/*
It is possible to use any or all of these processing elements. At least one processing element
must be included.Only the following combinations are allowed:
B
M - Matrix - B
A - CLUT - B
A - CLUT - M - Matrix - B
*/
static
void* Type_LUTA2B_Read(struct _cms_typehandler_struct* self, cmsIOHANDLER* io, cmsUInt32Number* nItems, cmsUInt32Number SizeOfTag)
{
cmsUInt32Number BaseOffset;
cmsUInt8Number inputChan; // Number of input channels
cmsUInt8Number outputChan; // Number of output channels
cmsUInt32Number offsetB; // Offset to first "B" curve
cmsUInt32Number offsetMat; // Offset to matrix
cmsUInt32Number offsetM; // Offset to first "M" curve
cmsUInt32Number offsetC; // Offset to CLUT
cmsUInt32Number offsetA; // Offset to first "A" curve
cmsPipeline* NewLUT = NULL;
BaseOffset = io ->Tell(io) - sizeof(_cmsTagBase);
if (!_cmsReadUInt8Number(io, &inputChan)) return NULL;
if (!_cmsReadUInt8Number(io, &outputChan)) return NULL;
if (!_cmsReadUInt16Number(io, NULL)) return NULL;
if (!_cmsReadUInt32Number(io, &offsetB)) return NULL;
if (!_cmsReadUInt32Number(io, &offsetMat)) return NULL;
if (!_cmsReadUInt32Number(io, &offsetM)) return NULL;
if (!_cmsReadUInt32Number(io, &offsetC)) return NULL;
if (!_cmsReadUInt32Number(io, &offsetA)) return NULL;
// Allocates an empty LUT
NewLUT = cmsPipelineAlloc(self ->ContextID, inputChan, outputChan);
if (NewLUT == NULL) return NULL;
if (offsetA!= 0) {
if (!cmsPipelineInsertStage(NewLUT, cmsAT_END, ReadSetOfCurves(self, io, BaseOffset + offsetA, inputChan)))
goto Error;
}
if (offsetC != 0) {
if (!cmsPipelineInsertStage(NewLUT, cmsAT_END, ReadCLUT(self, io, BaseOffset + offsetC, inputChan, outputChan)))
goto Error;
}
if (offsetM != 0) {
if (!cmsPipelineInsertStage(NewLUT, cmsAT_END, ReadSetOfCurves(self, io, BaseOffset + offsetM, outputChan)))
goto Error;
}
if (offsetMat != 0) {
if (!cmsPipelineInsertStage(NewLUT, cmsAT_END, ReadMatrix(self, io, BaseOffset + offsetMat)))
goto Error;
}
if (offsetB != 0) {
if (!cmsPipelineInsertStage(NewLUT, cmsAT_END, ReadSetOfCurves(self, io, BaseOffset + offsetB, outputChan)))
goto Error;
}
*nItems = 1;
return NewLUT;
Error:
cmsPipelineFree(NewLUT);
return NULL;
cmsUNUSED_PARAMETER(SizeOfTag);
}
// Write a set of curves
static
cmsBool WriteMatrix(struct _cms_typehandler_struct* self, cmsIOHANDLER* io, cmsStage* mpe)
{
_cmsStageMatrixData* m = (_cmsStageMatrixData*) mpe -> Data;
// Write the Matrix
if (!_cmsWrite15Fixed16Number(io, m -> Double[0])) return FALSE;
if (!_cmsWrite15Fixed16Number(io, m -> Double[1])) return FALSE;
if (!_cmsWrite15Fixed16Number(io, m -> Double[2])) return FALSE;
if (!_cmsWrite15Fixed16Number(io, m -> Double[3])) return FALSE;
if (!_cmsWrite15Fixed16Number(io, m -> Double[4])) return FALSE;
if (!_cmsWrite15Fixed16Number(io, m -> Double[5])) return FALSE;
if (!_cmsWrite15Fixed16Number(io, m -> Double[6])) return FALSE;
if (!_cmsWrite15Fixed16Number(io, m -> Double[7])) return FALSE;
if (!_cmsWrite15Fixed16Number(io, m -> Double[8])) return FALSE;
if (m ->Offset != NULL) {
if (!_cmsWrite15Fixed16Number(io, m -> Offset[0])) return FALSE;
if (!_cmsWrite15Fixed16Number(io, m -> Offset[1])) return FALSE;
if (!_cmsWrite15Fixed16Number(io, m -> Offset[2])) return FALSE;
}
else {
if (!_cmsWrite15Fixed16Number(io, 0)) return FALSE;
if (!_cmsWrite15Fixed16Number(io, 0)) return FALSE;
if (!_cmsWrite15Fixed16Number(io, 0)) return FALSE;
}
return TRUE;
cmsUNUSED_PARAMETER(self);
}
// Write a set of curves
static
cmsBool WriteSetOfCurves(struct _cms_typehandler_struct* self, cmsIOHANDLER* io, cmsTagTypeSignature Type, cmsStage* mpe)
{
cmsUInt32Number i, n;
cmsTagTypeSignature CurrentType;
cmsToneCurve** Curves;
n = cmsStageOutputChannels(mpe);
Curves = _cmsStageGetPtrToCurveSet(mpe);
for (i=0; i < n; i++) {
// If this is a table-based curve, use curve type even on V4
CurrentType = Type;
if ((Curves[i] ->nSegments == 0)||
((Curves[i]->nSegments == 2) && (Curves[i] ->Segments[1].Type == 0)) )
CurrentType = cmsSigCurveType;
else
if (Curves[i] ->Segments[0].Type < 0)
CurrentType = cmsSigCurveType;
if (!_cmsWriteTypeBase(io, CurrentType)) return FALSE;
switch (CurrentType) {
case cmsSigCurveType:
if (!Type_Curve_Write(self, io, Curves[i], 1)) return FALSE;
break;
case cmsSigParametricCurveType:
if (!Type_ParametricCurve_Write(self, io, Curves[i], 1)) return FALSE;
break;
default:
{
char String[5];
_cmsTagSignature2String(String, (cmsTagSignature) Type);
cmsSignalError(self ->ContextID, cmsERROR_UNKNOWN_EXTENSION, "Unknown curve type '%s'", String);
}
return FALSE;
}
if (!_cmsWriteAlignment(io)) return FALSE;
}
return TRUE;
}
static
cmsBool WriteCLUT(struct _cms_typehandler_struct* self, cmsIOHANDLER* io, cmsUInt8Number Precision, cmsStage* mpe)
{
cmsUInt8Number gridPoints[cmsMAXCHANNELS]; // Number of grid points in each dimension.
cmsUInt32Number i;
_cmsStageCLutData* CLUT = ( _cmsStageCLutData*) mpe -> Data;
if (CLUT ->HasFloatValues) {
cmsSignalError(self ->ContextID, cmsERROR_NOT_SUITABLE, "Cannot save floating point data, CLUT are 8 or 16 bit only");
return FALSE;
}
memset(gridPoints, 0, sizeof(gridPoints));
for (i=0; i < (cmsUInt32Number) CLUT ->Params ->nInputs; i++)
gridPoints[i] = (cmsUInt8Number) CLUT ->Params ->nSamples[i];
if (!io -> Write(io, cmsMAXCHANNELS*sizeof(cmsUInt8Number), gridPoints)) return FALSE;
if (!_cmsWriteUInt8Number(io, (cmsUInt8Number) Precision)) return FALSE;
if (!_cmsWriteUInt8Number(io, 0)) return FALSE;
if (!_cmsWriteUInt8Number(io, 0)) return FALSE;
if (!_cmsWriteUInt8Number(io, 0)) return FALSE;
// Precision can be 1 or 2 bytes
if (Precision == 1) {
for (i=0; i < CLUT->nEntries; i++) {
if (!_cmsWriteUInt8Number(io, FROM_16_TO_8(CLUT->Tab.T[i]))) return FALSE;
}
}
else
if (Precision == 2) {
if (!_cmsWriteUInt16Array(io, CLUT->nEntries, CLUT ->Tab.T)) return FALSE;
}
else {
cmsSignalError(self ->ContextID, cmsERROR_UNKNOWN_EXTENSION, "Unknown precision of '%d'", Precision);
return FALSE;
}
if (!_cmsWriteAlignment(io)) return FALSE;
return TRUE;
}
static
cmsBool Type_LUTA2B_Write(struct _cms_typehandler_struct* self, cmsIOHANDLER* io, void* Ptr, cmsUInt32Number nItems)
{
cmsPipeline* Lut = (cmsPipeline*) Ptr;
int inputChan, outputChan;
cmsStage *A = NULL, *B = NULL, *M = NULL;
cmsStage * Matrix = NULL;
cmsStage * CLUT = NULL;
cmsUInt32Number offsetB = 0, offsetMat = 0, offsetM = 0, offsetC = 0, offsetA = 0;
cmsUInt32Number BaseOffset, DirectoryPos, CurrentPos;
// Get the base for all offsets
BaseOffset = io ->Tell(io) - sizeof(_cmsTagBase);
if (Lut ->Elements != NULL)
if (!cmsPipelineCheckAndRetreiveStages(Lut, 1, cmsSigCurveSetElemType, &B))
if (!cmsPipelineCheckAndRetreiveStages(Lut, 3, cmsSigCurveSetElemType, cmsSigMatrixElemType, cmsSigCurveSetElemType, &M, &Matrix, &B))
if (!cmsPipelineCheckAndRetreiveStages(Lut, 3, cmsSigCurveSetElemType, cmsSigCLutElemType, cmsSigCurveSetElemType, &A, &CLUT, &B))
if (!cmsPipelineCheckAndRetreiveStages(Lut, 5, cmsSigCurveSetElemType, cmsSigCLutElemType, cmsSigCurveSetElemType,
cmsSigMatrixElemType, cmsSigCurveSetElemType, &A, &CLUT, &M, &Matrix, &B)) {
cmsSignalError(self->ContextID, cmsERROR_NOT_SUITABLE, "LUT is not suitable to be saved as LutAToB");
return FALSE;
}
// Get input, output channels
inputChan = cmsPipelineInputChannels(Lut);
outputChan = cmsPipelineOutputChannels(Lut);
// Write channel count
if (!_cmsWriteUInt8Number(io, (cmsUInt8Number) inputChan)) return FALSE;
if (!_cmsWriteUInt8Number(io, (cmsUInt8Number) outputChan)) return FALSE;
if (!_cmsWriteUInt16Number(io, 0)) return FALSE;
// Keep directory to be filled latter
DirectoryPos = io ->Tell(io);
// Write the directory
if (!_cmsWriteUInt32Number(io, 0)) return FALSE;
if (!_cmsWriteUInt32Number(io, 0)) return FALSE;
if (!_cmsWriteUInt32Number(io, 0)) return FALSE;
if (!_cmsWriteUInt32Number(io, 0)) return FALSE;
if (!_cmsWriteUInt32Number(io, 0)) return FALSE;
if (A != NULL) {
offsetA = io ->Tell(io) - BaseOffset;
if (!WriteSetOfCurves(self, io, cmsSigParametricCurveType, A)) return FALSE;
}
if (CLUT != NULL) {
offsetC = io ->Tell(io) - BaseOffset;
if (!WriteCLUT(self, io, Lut ->SaveAs8Bits ? 1 : 2, CLUT)) return FALSE;
}
if (M != NULL) {
offsetM = io ->Tell(io) - BaseOffset;
if (!WriteSetOfCurves(self, io, cmsSigParametricCurveType, M)) return FALSE;
}
if (Matrix != NULL) {
offsetMat = io ->Tell(io) - BaseOffset;
if (!WriteMatrix(self, io, Matrix)) return FALSE;
}
if (B != NULL) {
offsetB = io ->Tell(io) - BaseOffset;
if (!WriteSetOfCurves(self, io, cmsSigParametricCurveType, B)) return FALSE;
}
CurrentPos = io ->Tell(io);
if (!io ->Seek(io, DirectoryPos)) return FALSE;
if (!_cmsWriteUInt32Number(io, offsetB)) return FALSE;
if (!_cmsWriteUInt32Number(io, offsetMat)) return FALSE;
if (!_cmsWriteUInt32Number(io, offsetM)) return FALSE;
if (!_cmsWriteUInt32Number(io, offsetC)) return FALSE;
if (!_cmsWriteUInt32Number(io, offsetA)) return FALSE;
if (!io ->Seek(io, CurrentPos)) return FALSE;
return TRUE;
cmsUNUSED_PARAMETER(nItems);
}
static
void* Type_LUTA2B_Dup(struct _cms_typehandler_struct* self, const void *Ptr, cmsUInt32Number n)
{
return (void*) cmsPipelineDup((cmsPipeline*) Ptr);
cmsUNUSED_PARAMETER(n);
cmsUNUSED_PARAMETER(self);
}
static
void Type_LUTA2B_Free(struct _cms_typehandler_struct* self, void* Ptr)
{
cmsPipelineFree((cmsPipeline*) Ptr);
return;
cmsUNUSED_PARAMETER(self);
}
// LutBToA type
static
void* Type_LUTB2A_Read(struct _cms_typehandler_struct* self, cmsIOHANDLER* io, cmsUInt32Number* nItems, cmsUInt32Number SizeOfTag)
{
cmsUInt8Number inputChan; // Number of input channels
cmsUInt8Number outputChan; // Number of output channels
cmsUInt32Number BaseOffset; // Actual position in file
cmsUInt32Number offsetB; // Offset to first "B" curve
cmsUInt32Number offsetMat; // Offset to matrix
cmsUInt32Number offsetM; // Offset to first "M" curve
cmsUInt32Number offsetC; // Offset to CLUT
cmsUInt32Number offsetA; // Offset to first "A" curve
cmsPipeline* NewLUT = NULL;
BaseOffset = io ->Tell(io) - sizeof(_cmsTagBase);
if (!_cmsReadUInt8Number(io, &inputChan)) return NULL;
if (!_cmsReadUInt8Number(io, &outputChan)) return NULL;
// Padding
if (!_cmsReadUInt16Number(io, NULL)) return NULL;
if (!_cmsReadUInt32Number(io, &offsetB)) return NULL;
if (!_cmsReadUInt32Number(io, &offsetMat)) return NULL;
if (!_cmsReadUInt32Number(io, &offsetM)) return NULL;
if (!_cmsReadUInt32Number(io, &offsetC)) return NULL;
if (!_cmsReadUInt32Number(io, &offsetA)) return NULL;
// Allocates an empty LUT
NewLUT = cmsPipelineAlloc(self ->ContextID, inputChan, outputChan);
if (NewLUT == NULL) return NULL;
if (offsetB != 0) {
if (!cmsPipelineInsertStage(NewLUT, cmsAT_END, ReadSetOfCurves(self, io, BaseOffset + offsetB, inputChan)))
goto Error;
}
if (offsetMat != 0) {
if (!cmsPipelineInsertStage(NewLUT, cmsAT_END, ReadMatrix(self, io, BaseOffset + offsetMat)))
goto Error;
}
if (offsetM != 0) {
if (!cmsPipelineInsertStage(NewLUT, cmsAT_END, ReadSetOfCurves(self, io, BaseOffset + offsetM, inputChan)))
goto Error;
}
if (offsetC != 0) {
if (!cmsPipelineInsertStage(NewLUT, cmsAT_END, ReadCLUT(self, io, BaseOffset + offsetC, inputChan, outputChan)))
goto Error;
}
if (offsetA!= 0) {
if (!cmsPipelineInsertStage(NewLUT, cmsAT_END, ReadSetOfCurves(self, io, BaseOffset + offsetA, outputChan)))
goto Error;
}
*nItems = 1;
return NewLUT;
Error:
cmsPipelineFree(NewLUT);
return NULL;
cmsUNUSED_PARAMETER(SizeOfTag);
}
/*
B
B - Matrix - M
B - CLUT - A
B - Matrix - M - CLUT - A
*/
static
cmsBool Type_LUTB2A_Write(struct _cms_typehandler_struct* self, cmsIOHANDLER* io, void* Ptr, cmsUInt32Number nItems)
{
cmsPipeline* Lut = (cmsPipeline*) Ptr;
int inputChan, outputChan;
cmsStage *A = NULL, *B = NULL, *M = NULL;
cmsStage *Matrix = NULL;
cmsStage *CLUT = NULL;
cmsUInt32Number offsetB = 0, offsetMat = 0, offsetM = 0, offsetC = 0, offsetA = 0;
cmsUInt32Number BaseOffset, DirectoryPos, CurrentPos;
BaseOffset = io ->Tell(io) - sizeof(_cmsTagBase);
if (!cmsPipelineCheckAndRetreiveStages(Lut, 1, cmsSigCurveSetElemType, &B))
if (!cmsPipelineCheckAndRetreiveStages(Lut, 3, cmsSigCurveSetElemType, cmsSigMatrixElemType, cmsSigCurveSetElemType, &B, &Matrix, &M))
if (!cmsPipelineCheckAndRetreiveStages(Lut, 3, cmsSigCurveSetElemType, cmsSigCLutElemType, cmsSigCurveSetElemType, &B, &CLUT, &A))
if (!cmsPipelineCheckAndRetreiveStages(Lut, 5, cmsSigCurveSetElemType, cmsSigMatrixElemType, cmsSigCurveSetElemType,
cmsSigCLutElemType, cmsSigCurveSetElemType, &B, &Matrix, &M, &CLUT, &A)) {
cmsSignalError(self->ContextID, cmsERROR_NOT_SUITABLE, "LUT is not suitable to be saved as LutBToA");
return FALSE;
}
inputChan = cmsPipelineInputChannels(Lut);
outputChan = cmsPipelineOutputChannels(Lut);
if (!_cmsWriteUInt8Number(io, (cmsUInt8Number) inputChan)) return FALSE;
if (!_cmsWriteUInt8Number(io, (cmsUInt8Number) outputChan)) return FALSE;
if (!_cmsWriteUInt16Number(io, 0)) return FALSE;
DirectoryPos = io ->Tell(io);
if (!_cmsWriteUInt32Number(io, 0)) return FALSE;
if (!_cmsWriteUInt32Number(io, 0)) return FALSE;
if (!_cmsWriteUInt32Number(io, 0)) return FALSE;
if (!_cmsWriteUInt32Number(io, 0)) return FALSE;
if (!_cmsWriteUInt32Number(io, 0)) return FALSE;
if (A != NULL) {
offsetA = io ->Tell(io) - BaseOffset;
if (!WriteSetOfCurves(self, io, cmsSigParametricCurveType, A)) return FALSE;
}
if (CLUT != NULL) {
offsetC = io ->Tell(io) - BaseOffset;
if (!WriteCLUT(self, io, Lut ->SaveAs8Bits ? 1 : 2, CLUT)) return FALSE;
}
if (M != NULL) {
offsetM = io ->Tell(io) - BaseOffset;
if (!WriteSetOfCurves(self, io, cmsSigParametricCurveType, M)) return FALSE;
}
if (Matrix != NULL) {
offsetMat = io ->Tell(io) - BaseOffset;
if (!WriteMatrix(self, io, Matrix)) return FALSE;
}
if (B != NULL) {
offsetB = io ->Tell(io) - BaseOffset;
if (!WriteSetOfCurves(self, io, cmsSigParametricCurveType, B)) return FALSE;
}
CurrentPos = io ->Tell(io);
if (!io ->Seek(io, DirectoryPos)) return FALSE;
if (!_cmsWriteUInt32Number(io, offsetB)) return FALSE;
if (!_cmsWriteUInt32Number(io, offsetMat)) return FALSE;
if (!_cmsWriteUInt32Number(io, offsetM)) return FALSE;
if (!_cmsWriteUInt32Number(io, offsetC)) return FALSE;
if (!_cmsWriteUInt32Number(io, offsetA)) return FALSE;
if (!io ->Seek(io, CurrentPos)) return FALSE;
return TRUE;
cmsUNUSED_PARAMETER(nItems);
}
static
void* Type_LUTB2A_Dup(struct _cms_typehandler_struct* self, const void *Ptr, cmsUInt32Number n)
{
return (void*) cmsPipelineDup((cmsPipeline*) Ptr);
cmsUNUSED_PARAMETER(n);
cmsUNUSED_PARAMETER(self);
}
static
void Type_LUTB2A_Free(struct _cms_typehandler_struct* self, void* Ptr)
{
cmsPipelineFree((cmsPipeline*) Ptr);
return;
cmsUNUSED_PARAMETER(self);
}
// ********************************************************************************
// Type cmsSigColorantTableType
// ********************************************************************************
/*
The purpose of this tag is to identify the colorants used in the profile by a
unique name and set of XYZ or L*a*b* values to give the colorant an unambiguous
value. The first colorant listed is the colorant of the first device channel of
a lut tag. The second colorant listed is the colorant of the second device channel
of a lut tag, and so on.
*/
static
void *Type_ColorantTable_Read(struct _cms_typehandler_struct* self, cmsIOHANDLER* io, cmsUInt32Number* nItems, cmsUInt32Number SizeOfTag)
{
cmsUInt32Number i, Count;
cmsNAMEDCOLORLIST* List;
char Name[34];
cmsUInt16Number PCS[3];
if (!_cmsReadUInt32Number(io, &Count)) return NULL;
if (Count > cmsMAXCHANNELS) {
cmsSignalError(self->ContextID, cmsERROR_RANGE, "Too many colorants '%d'", Count);
return NULL;
}
List = cmsAllocNamedColorList(self ->ContextID, Count, 0, "", "");
for (i=0; i < Count; i++) {
if (io ->Read(io, Name, 32, 1) != 1) goto Error;
Name[33] = 0;
if (!_cmsReadUInt16Array(io, 3, PCS)) goto Error;
if (!cmsAppendNamedColor(List, Name, PCS, NULL)) goto Error;
}
*nItems = 1;
return List;
Error:
*nItems = 0;
cmsFreeNamedColorList(List);
return NULL;
cmsUNUSED_PARAMETER(SizeOfTag);
}
// Saves a colorant table. It is using the named color structure for simplicity sake
static
cmsBool Type_ColorantTable_Write(struct _cms_typehandler_struct* self, cmsIOHANDLER* io, void* Ptr, cmsUInt32Number nItems)
{
cmsNAMEDCOLORLIST* NamedColorList = (cmsNAMEDCOLORLIST*) Ptr;
int i, nColors;
nColors = cmsNamedColorCount(NamedColorList);
if (!_cmsWriteUInt32Number(io, nColors)) return FALSE;
for (i=0; i < nColors; i++) {
char root[33];
cmsUInt16Number PCS[3];
if (!cmsNamedColorInfo(NamedColorList, i, root, NULL, NULL, PCS, NULL)) return 0;
root[32] = 0;
if (!io ->Write(io, 32, root)) return FALSE;
if (!_cmsWriteUInt16Array(io, 3, PCS)) return FALSE;
}
return TRUE;
cmsUNUSED_PARAMETER(nItems);
cmsUNUSED_PARAMETER(self);
}
static
void* Type_ColorantTable_Dup(struct _cms_typehandler_struct* self, const void* Ptr, cmsUInt32Number n)
{
cmsNAMEDCOLORLIST* nc = (cmsNAMEDCOLORLIST*) Ptr;
return (void*) cmsDupNamedColorList(nc);
cmsUNUSED_PARAMETER(n);
cmsUNUSED_PARAMETER(self);
}
static
void Type_ColorantTable_Free(struct _cms_typehandler_struct* self, void* Ptr)
{
cmsFreeNamedColorList((cmsNAMEDCOLORLIST*) Ptr);
return;
cmsUNUSED_PARAMETER(self);
}
// ********************************************************************************
// Type cmsSigNamedColor2Type
// ********************************************************************************
//
//The namedColor2Type is a count value and array of structures that provide color
//coordinates for 7-bit ASCII color names. For each named color, a PCS and optional
//device representation of the color are given. Both representations are 16-bit values.
//The device representation corresponds to the headerÆs ôcolor space of dataö field.
//This representation should be consistent with the ônumber of device componentsö
//field in the namedColor2Type. If this field is 0, device coordinates are not provided.
//The PCS representation corresponds to the headerÆs PCS field. The PCS representation
//is always provided. Color names are fixed-length, 32-byte fields including null
//termination. In order to maintain maximum portability, it is strongly recommended
//that special characters of the 7-bit ASCII set not be used.
static
void *Type_NamedColor_Read(struct _cms_typehandler_struct* self, cmsIOHANDLER* io, cmsUInt32Number* nItems, cmsUInt32Number SizeOfTag)
{
cmsUInt32Number vendorFlag; // Bottom 16 bits for ICC use
cmsUInt32Number count; // Count of named colors
cmsUInt32Number nDeviceCoords; // Num of device coordinates
char prefix[32]; // Prefix for each color name
char suffix[32]; // Suffix for each color name
cmsNAMEDCOLORLIST* v;
cmsUInt32Number i;
*nItems = 0;
if (!_cmsReadUInt32Number(io, &vendorFlag)) return NULL;
if (!_cmsReadUInt32Number(io, &count)) return NULL;
if (!_cmsReadUInt32Number(io, &nDeviceCoords)) return NULL;
if (io -> Read(io, prefix, 32, 1) != 1) return NULL;
if (io -> Read(io, suffix, 32, 1) != 1) return NULL;
prefix[31] = suffix[31] = 0;
v = cmsAllocNamedColorList(self ->ContextID, count, nDeviceCoords, prefix, suffix);
if (v == NULL) {
cmsSignalError(self->ContextID, cmsERROR_RANGE, "Too many named colors '%d'", count);
return NULL;
}
if (nDeviceCoords > cmsMAXCHANNELS) {
cmsSignalError(self->ContextID, cmsERROR_RANGE, "Too many device coordinates '%d'", nDeviceCoords);
return 0;
}
for (i=0; i < count; i++) {
cmsUInt16Number PCS[3];
cmsUInt16Number Colorant[cmsMAXCHANNELS];
char Root[33];
memset(Colorant, 0, sizeof(Colorant));
if (io -> Read(io, Root, 32, 1) != 1) return NULL;
if (!_cmsReadUInt16Array(io, 3, PCS)) goto Error;
if (!_cmsReadUInt16Array(io, nDeviceCoords, Colorant)) goto Error;
if (!cmsAppendNamedColor(v, Root, PCS, Colorant)) goto Error;
}
*nItems = 1;
return (void*) v ;
Error:
cmsFreeNamedColorList(v);
return NULL;
cmsUNUSED_PARAMETER(SizeOfTag);
}
// Saves a named color list into a named color profile
static
cmsBool Type_NamedColor_Write(struct _cms_typehandler_struct* self, cmsIOHANDLER* io, void* Ptr, cmsUInt32Number nItems)
{
cmsNAMEDCOLORLIST* NamedColorList = (cmsNAMEDCOLORLIST*) Ptr;
char prefix[32]; // Prefix for each color name
char suffix[32]; // Suffix for each color name
int i, nColors;
nColors = cmsNamedColorCount(NamedColorList);
if (!_cmsWriteUInt32Number(io, 0)) return FALSE;
if (!_cmsWriteUInt32Number(io, nColors)) return FALSE;
if (!_cmsWriteUInt32Number(io, NamedColorList ->ColorantCount)) return FALSE;
strncpy(prefix, (const char*) NamedColorList->Prefix, 32);
strncpy(suffix, (const char*) NamedColorList->Suffix, 32);
suffix[31] = prefix[31] = 0;
if (!io ->Write(io, 32, prefix)) return FALSE;
if (!io ->Write(io, 32, suffix)) return FALSE;
for (i=0; i < nColors; i++) {
cmsUInt16Number PCS[3];
cmsUInt16Number Colorant[cmsMAXCHANNELS];
char Root[33];
if (!cmsNamedColorInfo(NamedColorList, i, Root, NULL, NULL, PCS, Colorant)) return 0;
if (!io ->Write(io, 32 , Root)) return FALSE;
if (!_cmsWriteUInt16Array(io, 3, PCS)) return FALSE;
if (!_cmsWriteUInt16Array(io, NamedColorList ->ColorantCount, Colorant)) return FALSE;
}
return TRUE;
cmsUNUSED_PARAMETER(nItems);
cmsUNUSED_PARAMETER(self);
}
static
void* Type_NamedColor_Dup(struct _cms_typehandler_struct* self, const void* Ptr, cmsUInt32Number n)
{
cmsNAMEDCOLORLIST* nc = (cmsNAMEDCOLORLIST*) Ptr;
return (void*) cmsDupNamedColorList(nc);
cmsUNUSED_PARAMETER(n);
cmsUNUSED_PARAMETER(self);
}
static
void Type_NamedColor_Free(struct _cms_typehandler_struct* self, void* Ptr)
{
cmsFreeNamedColorList((cmsNAMEDCOLORLIST*) Ptr);
return;
cmsUNUSED_PARAMETER(self);
}
// ********************************************************************************
// Type cmsSigProfileSequenceDescType
// ********************************************************************************
// This type is an array of structures, each of which contains information from the
// header fields and tags from the original profiles which were combined to create
// the final profile. The order of the structures is the order in which the profiles
// were combined and includes a structure for the final profile. This provides a
// description of the profile sequence from source to destination,
// typically used with the DeviceLink profile.
static
cmsBool ReadEmbeddedText(struct _cms_typehandler_struct* self, cmsIOHANDLER* io, cmsMLU** mlu, cmsUInt32Number SizeOfTag)
{
cmsTagTypeSignature BaseType;
cmsUInt32Number nItems;
BaseType = _cmsReadTypeBase(io);
switch (BaseType) {
case cmsSigTextType:
if (*mlu) cmsMLUfree(*mlu);
*mlu = (cmsMLU*)Type_Text_Read(self, io, &nItems, SizeOfTag);
return (*mlu != NULL);
case cmsSigTextDescriptionType:
if (*mlu) cmsMLUfree(*mlu);
*mlu = (cmsMLU*) Type_Text_Description_Read(self, io, &nItems, SizeOfTag);
return (*mlu != NULL);
/*
TBD: Size is needed for MLU, and we have no idea on which is the available size
*/
case cmsSigMultiLocalizedUnicodeType:
if (*mlu) cmsMLUfree(*mlu);
*mlu = (cmsMLU*) Type_MLU_Read(self, io, &nItems, SizeOfTag);
return (*mlu != NULL);
default: return FALSE;
}
}
static
void *Type_ProfileSequenceDesc_Read(struct _cms_typehandler_struct* self, cmsIOHANDLER* io, cmsUInt32Number* nItems, cmsUInt32Number SizeOfTag)
{
cmsSEQ* OutSeq;
cmsUInt32Number i, Count;
*nItems = 0;
if (!_cmsReadUInt32Number(io, &Count)) return NULL;
if (SizeOfTag < sizeof(cmsUInt32Number)) return NULL;
SizeOfTag -= sizeof(cmsUInt32Number);
OutSeq = cmsAllocProfileSequenceDescription(self ->ContextID, Count);
if (OutSeq == NULL) return NULL;
OutSeq ->n = Count;
// Get structures as well
for (i=0; i < Count; i++) {
cmsPSEQDESC* sec = &OutSeq -> seq[i];
if (!_cmsReadUInt32Number(io, &sec ->deviceMfg)) goto Error;
if (SizeOfTag < sizeof(cmsUInt32Number)) goto Error;
SizeOfTag -= sizeof(cmsUInt32Number);
if (!_cmsReadUInt32Number(io, &sec ->deviceModel)) goto Error;
if (SizeOfTag < sizeof(cmsUInt32Number)) goto Error;
SizeOfTag -= sizeof(cmsUInt32Number);
if (!_cmsReadUInt64Number(io, &sec ->attributes)) goto Error;
if (SizeOfTag < sizeof(cmsUInt64Number)) goto Error;
SizeOfTag -= sizeof(cmsUInt64Number);
if (!_cmsReadUInt32Number(io, (cmsUInt32Number *)&sec ->technology)) goto Error;
if (SizeOfTag < sizeof(cmsUInt32Number)) goto Error;
SizeOfTag -= sizeof(cmsUInt32Number);
if (!ReadEmbeddedText(self, io, &sec ->Manufacturer, SizeOfTag)) goto Error;
if (!ReadEmbeddedText(self, io, &sec ->Model, SizeOfTag)) goto Error;
}
*nItems = 1;
return OutSeq;
Error:
cmsFreeProfileSequenceDescription(OutSeq);
return NULL;
}
// Aux--Embed a text description type. It can be of type text description or multilocalized unicode
// and it depends of the version number passed on cmsTagDescriptor structure instead of stack
static
cmsBool SaveDescription(struct _cms_typehandler_struct* self, cmsIOHANDLER* io, cmsMLU* Text)
{
if (self ->ICCVersion < 0x4000000) {
if (!_cmsWriteTypeBase(io, cmsSigTextDescriptionType)) return FALSE;
return Type_Text_Description_Write(self, io, Text, 1);
}
else {
if (!_cmsWriteTypeBase(io, cmsSigMultiLocalizedUnicodeType)) return FALSE;
return Type_MLU_Write(self, io, Text, 1);
}
}
static
cmsBool Type_ProfileSequenceDesc_Write(struct _cms_typehandler_struct* self, cmsIOHANDLER* io, void* Ptr, cmsUInt32Number nItems)
{
cmsSEQ* Seq = (cmsSEQ*) Ptr;
cmsUInt32Number i;
if (!_cmsWriteUInt32Number(io, Seq->n)) return FALSE;
for (i=0; i < Seq ->n; i++) {
cmsPSEQDESC* sec = &Seq -> seq[i];
if (!_cmsWriteUInt32Number(io, sec ->deviceMfg)) return FALSE;
if (!_cmsWriteUInt32Number(io, sec ->deviceModel)) return FALSE;
if (!_cmsWriteUInt64Number(io, &sec ->attributes)) return FALSE;
if (!_cmsWriteUInt32Number(io, sec ->technology)) return FALSE;
if (!SaveDescription(self, io, sec ->Manufacturer)) return FALSE;
if (!SaveDescription(self, io, sec ->Model)) return FALSE;
}
return TRUE;
cmsUNUSED_PARAMETER(nItems);
}
static
void* Type_ProfileSequenceDesc_Dup(struct _cms_typehandler_struct* self, const void* Ptr, cmsUInt32Number n)
{
return (void*) cmsDupProfileSequenceDescription((cmsSEQ*) Ptr);
cmsUNUSED_PARAMETER(n);
cmsUNUSED_PARAMETER(self);
}
static
void Type_ProfileSequenceDesc_Free(struct _cms_typehandler_struct* self, void* Ptr)
{
cmsFreeProfileSequenceDescription((cmsSEQ*) Ptr);
return;
cmsUNUSED_PARAMETER(self);
}
// ********************************************************************************
// Type cmsSigProfileSequenceIdType
// ********************************************************************************
/*
In certain workflows using ICC Device Link Profiles, it is necessary to identify the
original profiles that were combined to create the Device Link Profile.
This type is an array of structures, each of which contains information for
identification of a profile used in a sequence
*/
static
cmsBool ReadSeqID(struct _cms_typehandler_struct* self,
cmsIOHANDLER* io,
void* Cargo,
cmsUInt32Number n,
cmsUInt32Number SizeOfTag)
{
cmsSEQ* OutSeq = (cmsSEQ*) Cargo;
cmsPSEQDESC* seq = &OutSeq ->seq[n];
if (io -> Read(io, seq ->ProfileID.ID8, 16, 1) != 1) return FALSE;
if (!ReadEmbeddedText(self, io, &seq ->Description, SizeOfTag)) return FALSE;
return TRUE;
}
static
void *Type_ProfileSequenceId_Read(struct _cms_typehandler_struct* self, cmsIOHANDLER* io, cmsUInt32Number* nItems, cmsUInt32Number SizeOfTag)
{
cmsSEQ* OutSeq;
cmsUInt32Number Count;
cmsUInt32Number BaseOffset;
*nItems = 0;
// Get actual position as a basis for element offsets
BaseOffset = io ->Tell(io) - sizeof(_cmsTagBase);
// Get table count
if (!_cmsReadUInt32Number(io, &Count)) return NULL;
SizeOfTag -= sizeof(cmsUInt32Number);
// Allocate an empty structure
OutSeq = cmsAllocProfileSequenceDescription(self ->ContextID, Count);
if (OutSeq == NULL) return NULL;
// Read the position table
if (!ReadPositionTable(self, io, Count, BaseOffset, OutSeq, ReadSeqID)) {
cmsFreeProfileSequenceDescription(OutSeq);
return NULL;
}
// Success
*nItems = 1;
return OutSeq;
}
static
cmsBool WriteSeqID(struct _cms_typehandler_struct* self,
cmsIOHANDLER* io,
void* Cargo,
cmsUInt32Number n,
cmsUInt32Number SizeOfTag)
{
cmsSEQ* Seq = (cmsSEQ*) Cargo;
if (!io ->Write(io, 16, Seq ->seq[n].ProfileID.ID8)) return FALSE;
// Store here the MLU
if (!SaveDescription(self, io, Seq ->seq[n].Description)) return FALSE;
return TRUE;
cmsUNUSED_PARAMETER(SizeOfTag);
}
static
cmsBool Type_ProfileSequenceId_Write(struct _cms_typehandler_struct* self, cmsIOHANDLER* io, void* Ptr, cmsUInt32Number nItems)
{
cmsSEQ* Seq = (cmsSEQ*) Ptr;
cmsUInt32Number BaseOffset;
// Keep the base offset
BaseOffset = io ->Tell(io) - sizeof(_cmsTagBase);
// This is the table count
if (!_cmsWriteUInt32Number(io, Seq ->n)) return FALSE;
// This is the position table and content
if (!WritePositionTable(self, io, 0, Seq ->n, BaseOffset, Seq, WriteSeqID)) return FALSE;
return TRUE;
cmsUNUSED_PARAMETER(nItems);
}
static
void* Type_ProfileSequenceId_Dup(struct _cms_typehandler_struct* self, const void* Ptr, cmsUInt32Number n)
{
return (void*) cmsDupProfileSequenceDescription((cmsSEQ*) Ptr);
cmsUNUSED_PARAMETER(n);
cmsUNUSED_PARAMETER(self);
}
static
void Type_ProfileSequenceId_Free(struct _cms_typehandler_struct* self, void* Ptr)
{
cmsFreeProfileSequenceDescription((cmsSEQ*) Ptr);
return;
cmsUNUSED_PARAMETER(self);
}
// ********************************************************************************
// Type cmsSigUcrBgType
// ********************************************************************************
/*
This type contains curves representing the under color removal and black
generation and a text string which is a general description of the method used
for the ucr/bg.
*/
static
void *Type_UcrBg_Read(struct _cms_typehandler_struct* self, cmsIOHANDLER* io, cmsUInt32Number* nItems, cmsUInt32Number SizeOfTag)
{
cmsUcrBg* n = (cmsUcrBg*) _cmsMallocZero(self ->ContextID, sizeof(cmsUcrBg));
cmsUInt32Number CountUcr, CountBg;
char* ASCIIString;
*nItems = 0;
if (n == NULL) return NULL;
// First curve is Under color removal
if (!_cmsReadUInt32Number(io, &CountUcr)) return NULL;
if (SizeOfTag < sizeof(cmsUInt32Number)) return NULL;
SizeOfTag -= sizeof(cmsUInt32Number);
n ->Ucr = cmsBuildTabulatedToneCurve16(self ->ContextID, CountUcr, NULL);
if (n ->Ucr == NULL) return NULL;
if (!_cmsReadUInt16Array(io, CountUcr, n ->Ucr->Table16)) return NULL;
if (SizeOfTag < sizeof(cmsUInt32Number)) return NULL;
SizeOfTag -= CountUcr * sizeof(cmsUInt16Number);
// Second curve is Black generation
if (!_cmsReadUInt32Number(io, &CountBg)) return NULL;
if (SizeOfTag < sizeof(cmsUInt32Number)) return NULL;
SizeOfTag -= sizeof(cmsUInt32Number);
n ->Bg = cmsBuildTabulatedToneCurve16(self ->ContextID, CountBg, NULL);
if (n ->Bg == NULL) return NULL;
if (!_cmsReadUInt16Array(io, CountBg, n ->Bg->Table16)) return NULL;
if (SizeOfTag < CountBg * sizeof(cmsUInt16Number)) return NULL;
SizeOfTag -= CountBg * sizeof(cmsUInt16Number);
if (SizeOfTag == UINT_MAX) return NULL;
// Now comes the text. The length is specified by the tag size
n ->Desc = cmsMLUalloc(self ->ContextID, 1);
if (n ->Desc == NULL) return NULL;
ASCIIString = (char*) _cmsMalloc(self ->ContextID, SizeOfTag + 1);
if (io ->Read(io, ASCIIString, sizeof(char), SizeOfTag) != SizeOfTag) return NULL;
ASCIIString[SizeOfTag] = 0;
cmsMLUsetASCII(n ->Desc, cmsNoLanguage, cmsNoCountry, ASCIIString);
_cmsFree(self ->ContextID, ASCIIString);
*nItems = 1;
return (void*) n;
}
static
cmsBool Type_UcrBg_Write(struct _cms_typehandler_struct* self, cmsIOHANDLER* io, void* Ptr, cmsUInt32Number nItems)
{
cmsUcrBg* Value = (cmsUcrBg*) Ptr;
cmsUInt32Number TextSize;
char* Text;
// First curve is Under color removal
if (!_cmsWriteUInt32Number(io, Value ->Ucr ->nEntries)) return FALSE;
if (!_cmsWriteUInt16Array(io, Value ->Ucr ->nEntries, Value ->Ucr ->Table16)) return FALSE;
// Then black generation
if (!_cmsWriteUInt32Number(io, Value ->Bg ->nEntries)) return FALSE;
if (!_cmsWriteUInt16Array(io, Value ->Bg ->nEntries, Value ->Bg ->Table16)) return FALSE;
// Now comes the text. The length is specified by the tag size
TextSize = cmsMLUgetASCII(Value ->Desc, cmsNoLanguage, cmsNoCountry, NULL, 0);
Text = (char*) _cmsMalloc(self ->ContextID, TextSize);
if (cmsMLUgetASCII(Value ->Desc, cmsNoLanguage, cmsNoCountry, Text, TextSize) != TextSize) return FALSE;
if (!io ->Write(io, TextSize, Text)) return FALSE;
_cmsFree(self ->ContextID, Text);
return TRUE;
cmsUNUSED_PARAMETER(nItems);
}
static
void* Type_UcrBg_Dup(struct _cms_typehandler_struct* self, const void *Ptr, cmsUInt32Number n)
{
cmsUcrBg* Src = (cmsUcrBg*) Ptr;
cmsUcrBg* NewUcrBg = (cmsUcrBg*) _cmsMallocZero(self ->ContextID, sizeof(cmsUcrBg));
if (NewUcrBg == NULL) return NULL;
NewUcrBg ->Bg = cmsDupToneCurve(Src ->Bg);
NewUcrBg ->Ucr = cmsDupToneCurve(Src ->Ucr);
NewUcrBg ->Desc = cmsMLUdup(Src ->Desc);
return (void*) NewUcrBg;
cmsUNUSED_PARAMETER(n);
}
static
void Type_UcrBg_Free(struct _cms_typehandler_struct* self, void *Ptr)
{
cmsUcrBg* Src = (cmsUcrBg*) Ptr;
if (Src ->Ucr) cmsFreeToneCurve(Src ->Ucr);
if (Src ->Bg) cmsFreeToneCurve(Src ->Bg);
if (Src ->Desc) cmsMLUfree(Src ->Desc);
_cmsFree(self ->ContextID, Ptr);
}
// ********************************************************************************
// Type cmsSigCrdInfoType
// ********************************************************************************
/*
This type contains the PostScript product name to which this profile corresponds
and the names of the companion CRDs. Recall that a single profile can generate
multiple CRDs. It is implemented as a MLU being the language code "PS" and then
country varies for each element:
nm: PostScript product name
#0: Rendering intent 0 CRD name
#1: Rendering intent 1 CRD name
#2: Rendering intent 2 CRD name
#3: Rendering intent 3 CRD name
*/
// Auxiliar, read an string specified as count + string
static
cmsBool ReadCountAndSting(struct _cms_typehandler_struct* self, cmsIOHANDLER* io, cmsMLU* mlu, cmsUInt32Number* SizeOfTag, const char* Section)
{
cmsUInt32Number Count;
char* Text;
if (*SizeOfTag < sizeof(cmsUInt32Number)) return FALSE;
if (!_cmsReadUInt32Number(io, &Count)) return FALSE;
if (Count > UINT_MAX - sizeof(cmsUInt32Number)) return FALSE;
if (*SizeOfTag < Count + sizeof(cmsUInt32Number)) return FALSE;
Text = (char*) _cmsMalloc(self ->ContextID, Count+1);
if (Text == NULL) return FALSE;
if (io ->Read(io, Text, sizeof(cmsUInt8Number), Count) != Count) {
_cmsFree(self ->ContextID, Text);
return FALSE;
}
Text[Count] = 0;
cmsMLUsetASCII(mlu, "PS", Section, Text);
_cmsFree(self ->ContextID, Text);
*SizeOfTag -= (Count + sizeof(cmsUInt32Number));
return TRUE;
}
static
cmsBool WriteCountAndSting(struct _cms_typehandler_struct* self, cmsIOHANDLER* io, cmsMLU* mlu, const char* Section)
{
cmsUInt32Number TextSize;
char* Text;
TextSize = cmsMLUgetASCII(mlu, "PS", Section, NULL, 0);
Text = (char*) _cmsMalloc(self ->ContextID, TextSize);
if (!_cmsWriteUInt32Number(io, TextSize)) return FALSE;
if (cmsMLUgetASCII(mlu, "PS", Section, Text, TextSize) == 0) return FALSE;
if (!io ->Write(io, TextSize, Text)) return FALSE;
_cmsFree(self ->ContextID, Text);
return TRUE;
}
static
void *Type_CrdInfo_Read(struct _cms_typehandler_struct* self, cmsIOHANDLER* io, cmsUInt32Number* nItems, cmsUInt32Number SizeOfTag)
{
cmsMLU* mlu = cmsMLUalloc(self ->ContextID, 5);
*nItems = 0;
if (!ReadCountAndSting(self, io, mlu, &SizeOfTag, "nm")) goto Error;
if (!ReadCountAndSting(self, io, mlu, &SizeOfTag, "#0")) goto Error;
if (!ReadCountAndSting(self, io, mlu, &SizeOfTag, "#1")) goto Error;
if (!ReadCountAndSting(self, io, mlu, &SizeOfTag, "#2")) goto Error;
if (!ReadCountAndSting(self, io, mlu, &SizeOfTag, "#3")) goto Error;
*nItems = 1;
return (void*) mlu;
Error:
cmsMLUfree(mlu);
return NULL;
}
static
cmsBool Type_CrdInfo_Write(struct _cms_typehandler_struct* self, cmsIOHANDLER* io, void* Ptr, cmsUInt32Number nItems)
{
cmsMLU* mlu = (cmsMLU*) Ptr;
if (!WriteCountAndSting(self, io, mlu, "nm")) goto Error;
if (!WriteCountAndSting(self, io, mlu, "#0")) goto Error;
if (!WriteCountAndSting(self, io, mlu, "#1")) goto Error;
if (!WriteCountAndSting(self, io, mlu, "#2")) goto Error;
if (!WriteCountAndSting(self, io, mlu, "#3")) goto Error;
return TRUE;
Error:
return FALSE;
cmsUNUSED_PARAMETER(nItems);
}
static
void* Type_CrdInfo_Dup(struct _cms_typehandler_struct* self, const void *Ptr, cmsUInt32Number n)
{
return (void*) cmsMLUdup((cmsMLU*) Ptr);
cmsUNUSED_PARAMETER(n);
cmsUNUSED_PARAMETER(self);
}
static
void Type_CrdInfo_Free(struct _cms_typehandler_struct* self, void *Ptr)
{
cmsMLUfree((cmsMLU*) Ptr);
return;
cmsUNUSED_PARAMETER(self);
}
// ********************************************************************************
// Type cmsSigScreeningType
// ********************************************************************************
//
//The screeningType describes various screening parameters including screen
//frequency, screening angle, and spot shape.
static
void *Type_Screening_Read(struct _cms_typehandler_struct* self, cmsIOHANDLER* io, cmsUInt32Number* nItems, cmsUInt32Number SizeOfTag)
{
cmsScreening* sc = NULL;
cmsUInt32Number i;
sc = (cmsScreening*) _cmsMallocZero(self ->ContextID, sizeof(cmsScreening));
if (sc == NULL) return NULL;
*nItems = 0;
if (!_cmsReadUInt32Number(io, &sc ->Flag)) goto Error;
if (!_cmsReadUInt32Number(io, &sc ->nChannels)) goto Error;
if (sc ->nChannels > cmsMAXCHANNELS - 1)
sc ->nChannels = cmsMAXCHANNELS - 1;
for (i=0; i < sc ->nChannels; i++) {
if (!_cmsRead15Fixed16Number(io, &sc ->Channels[i].Frequency)) goto Error;
if (!_cmsRead15Fixed16Number(io, &sc ->Channels[i].ScreenAngle)) goto Error;
if (!_cmsReadUInt32Number(io, &sc ->Channels[i].SpotShape)) goto Error;
}
*nItems = 1;
return (void*) sc;
Error:
if (sc != NULL)
_cmsFree(self ->ContextID, sc);
return NULL;
cmsUNUSED_PARAMETER(SizeOfTag);
}
static
cmsBool Type_Screening_Write(struct _cms_typehandler_struct* self, cmsIOHANDLER* io, void* Ptr, cmsUInt32Number nItems)
{
cmsScreening* sc = (cmsScreening* ) Ptr;
cmsUInt32Number i;
if (!_cmsWriteUInt32Number(io, sc ->Flag)) return FALSE;
if (!_cmsWriteUInt32Number(io, sc ->nChannels)) return FALSE;
for (i=0; i < sc ->nChannels; i++) {
if (!_cmsWrite15Fixed16Number(io, sc ->Channels[i].Frequency)) return FALSE;
if (!_cmsWrite15Fixed16Number(io, sc ->Channels[i].ScreenAngle)) return FALSE;
if (!_cmsWriteUInt32Number(io, sc ->Channels[i].SpotShape)) return FALSE;
}
return TRUE;
cmsUNUSED_PARAMETER(nItems);
cmsUNUSED_PARAMETER(self);
}
static
void* Type_Screening_Dup(struct _cms_typehandler_struct* self, const void *Ptr, cmsUInt32Number n)
{
return _cmsDupMem(self ->ContextID, Ptr, sizeof(cmsScreening));
cmsUNUSED_PARAMETER(n);
}
static
void Type_Screening_Free(struct _cms_typehandler_struct* self, void* Ptr)
{
_cmsFree(self ->ContextID, Ptr);
}
// ********************************************************************************
// Type cmsSigViewingConditionsType
// ********************************************************************************
//
//This type represents a set of viewing condition parameters including:
//CIE ÆabsoluteÆ illuminant white point tristimulus values and CIE ÆabsoluteÆ
//surround tristimulus values.
static
void *Type_ViewingConditions_Read(struct _cms_typehandler_struct* self, cmsIOHANDLER* io, cmsUInt32Number* nItems, cmsUInt32Number SizeOfTag)
{
cmsICCViewingConditions* vc = NULL;
vc = (cmsICCViewingConditions*) _cmsMallocZero(self ->ContextID, sizeof(cmsICCViewingConditions));
if (vc == NULL) return NULL;
*nItems = 0;
if (!_cmsReadXYZNumber(io, &vc ->IlluminantXYZ)) goto Error;
if (!_cmsReadXYZNumber(io, &vc ->SurroundXYZ)) goto Error;
if (!_cmsReadUInt32Number(io, &vc ->IlluminantType)) goto Error;
*nItems = 1;
return (void*) vc;
Error:
if (vc != NULL)
_cmsFree(self ->ContextID, vc);
return NULL;
cmsUNUSED_PARAMETER(SizeOfTag);
}
static
cmsBool Type_ViewingConditions_Write(struct _cms_typehandler_struct* self, cmsIOHANDLER* io, void* Ptr, cmsUInt32Number nItems)
{
cmsICCViewingConditions* sc = (cmsICCViewingConditions* ) Ptr;
if (!_cmsWriteXYZNumber(io, &sc ->IlluminantXYZ)) return FALSE;
if (!_cmsWriteXYZNumber(io, &sc ->SurroundXYZ)) return FALSE;
if (!_cmsWriteUInt32Number(io, sc ->IlluminantType)) return FALSE;
return TRUE;
cmsUNUSED_PARAMETER(nItems);
cmsUNUSED_PARAMETER(self);
}
static
void* Type_ViewingConditions_Dup(struct _cms_typehandler_struct* self, const void *Ptr, cmsUInt32Number n)
{
return _cmsDupMem(self ->ContextID, Ptr, sizeof(cmsScreening));
cmsUNUSED_PARAMETER(n);
}
static
void Type_ViewingConditions_Free(struct _cms_typehandler_struct* self, void* Ptr)
{
_cmsFree(self ->ContextID, Ptr);
}
// ********************************************************************************
// Type cmsSigMultiProcessElementType
// ********************************************************************************
static
void* GenericMPEdup(struct _cms_typehandler_struct* self, const void *Ptr, cmsUInt32Number n)
{
return (void*) cmsStageDup((cmsStage*) Ptr);
cmsUNUSED_PARAMETER(n);
cmsUNUSED_PARAMETER(self);
}
static
void GenericMPEfree(struct _cms_typehandler_struct* self, void *Ptr)
{
cmsStageFree((cmsStage*) Ptr);
return;
cmsUNUSED_PARAMETER(self);
}
// Each curve is stored in one or more curve segments, with break-points specified between curve segments.
// The first curve segment always starts at ûInfinity, and the last curve segment always ends at +Infinity. The
// first and last curve segments shall be specified in terms of a formula, whereas the other segments shall be
// specified either in terms of a formula, or by a sampled curve.
// Read an embedded segmented curve
static
cmsToneCurve* ReadSegmentedCurve(struct _cms_typehandler_struct* self, cmsIOHANDLER* io)
{
cmsCurveSegSignature ElementSig;
cmsUInt32Number i, j;
cmsUInt16Number nSegments;
cmsCurveSegment* Segments;
cmsToneCurve* Curve;
cmsFloat32Number PrevBreak = -1E22F; // - infinite
// Take signature and channels for each element.
if (!_cmsReadUInt32Number(io, (cmsUInt32Number*) &ElementSig)) return NULL;
// That should be a segmented curve
if (ElementSig != cmsSigSegmentedCurve) return NULL;
if (!_cmsReadUInt32Number(io, NULL)) return NULL;
if (!_cmsReadUInt16Number(io, &nSegments)) return NULL;
if (!_cmsReadUInt16Number(io, NULL)) return NULL;
if (nSegments < 1) return NULL;
Segments = (cmsCurveSegment*) _cmsCalloc(self ->ContextID, nSegments, sizeof(cmsCurveSegment));
if (Segments == NULL) return NULL;
// Read breakpoints
for (i=0; i < (cmsUInt32Number) nSegments - 1; i++) {
Segments[i].x0 = PrevBreak;
if (!_cmsReadFloat32Number(io, &Segments[i].x1)) goto Error;
PrevBreak = Segments[i].x1;
}
Segments[nSegments-1].x0 = PrevBreak;
Segments[nSegments-1].x1 = 1E22F; // A big cmsFloat32Number number
// Read segments
for (i=0; i < nSegments; i++) {
if (!_cmsReadUInt32Number(io, (cmsUInt32Number*) &ElementSig)) goto Error;
if (!_cmsReadUInt32Number(io, NULL)) goto Error;
switch (ElementSig) {
case cmsSigFormulaCurveSeg: {
cmsUInt16Number Type;
cmsUInt32Number ParamsByType[] = {4, 5, 5 };
if (!_cmsReadUInt16Number(io, &Type)) goto Error;
if (!_cmsReadUInt16Number(io, NULL)) goto Error;
Segments[i].Type = Type + 6;
if (Type > 2) goto Error;
for (j=0; j < ParamsByType[Type]; j++) {
cmsFloat32Number f;
if (!_cmsReadFloat32Number(io, &f)) goto Error;
Segments[i].Params[j] = f;
}
}
break;
case cmsSigSampledCurveSeg: {
cmsUInt32Number Count;
if (!_cmsReadUInt32Number(io, &Count)) return NULL;
Segments[i].nGridPoints = Count;
Segments[i].SampledPoints = (cmsFloat32Number*) _cmsCalloc(self ->ContextID, Count, sizeof(cmsFloat32Number));
if (Segments[i].SampledPoints == NULL) goto Error;
for (j=0; j < Count; j++) {
if (!_cmsReadFloat32Number(io, &Segments[i].SampledPoints[j])) goto Error;
}
}
break;
default:
{
char String[5];
_cmsTagSignature2String(String, (cmsTagSignature) ElementSig);
cmsSignalError(self->ContextID, cmsERROR_UNKNOWN_EXTENSION, "Unknown curve element type '%s' found.", String);
}
return NULL;
}
}
Curve = cmsBuildSegmentedToneCurve(self ->ContextID, nSegments, Segments);
for (i=0; i < nSegments; i++) {
if (Segments[i].SampledPoints) _cmsFree(self ->ContextID, Segments[i].SampledPoints);
}
_cmsFree(self ->ContextID, Segments);
return Curve;
Error:
if (Segments) _cmsFree(self ->ContextID, Segments);
return NULL;
}
static
cmsBool ReadMPECurve(struct _cms_typehandler_struct* self,
cmsIOHANDLER* io,
void* Cargo,
cmsUInt32Number n,
cmsUInt32Number SizeOfTag)
{
cmsToneCurve** GammaTables = ( cmsToneCurve**) Cargo;
GammaTables[n] = ReadSegmentedCurve(self, io);
return (GammaTables[n] != NULL);
cmsUNUSED_PARAMETER(SizeOfTag);
}
static
void *Type_MPEcurve_Read(struct _cms_typehandler_struct* self, cmsIOHANDLER* io, cmsUInt32Number* nItems, cmsUInt32Number SizeOfTag)
{
cmsStage* mpe = NULL;
cmsUInt16Number InputChans, OutputChans;
cmsUInt32Number i, BaseOffset;
cmsToneCurve** GammaTables;
*nItems = 0;
// Get actual position as a basis for element offsets
BaseOffset = io ->Tell(io) - sizeof(_cmsTagBase);
if (!_cmsReadUInt16Number(io, &InputChans)) return NULL;
if (!_cmsReadUInt16Number(io, &OutputChans)) return NULL;
if (InputChans != OutputChans) return NULL;
GammaTables = (cmsToneCurve**) _cmsCalloc(self ->ContextID, InputChans, sizeof(cmsToneCurve*));
if (GammaTables == NULL) return NULL;
if (ReadPositionTable(self, io, InputChans, BaseOffset, GammaTables, ReadMPECurve)) {
mpe = cmsStageAllocToneCurves(self ->ContextID, InputChans, GammaTables);
}
else {
mpe = NULL;
}
for (i=0; i < InputChans; i++) {
if (GammaTables[i]) cmsFreeToneCurve(GammaTables[i]);
}
_cmsFree(self ->ContextID, GammaTables);
*nItems = (mpe != NULL) ? 1 : 0;
return mpe;
cmsUNUSED_PARAMETER(SizeOfTag);
}
// Write a single segmented curve. NO CHECK IS PERFORMED ON VALIDITY
static
cmsBool WriteSegmentedCurve(cmsIOHANDLER* io, cmsToneCurve* g)
{
cmsUInt32Number i, j;
cmsCurveSegment* Segments = g ->Segments;
cmsUInt32Number nSegments = g ->nSegments;
if (!_cmsWriteUInt32Number(io, cmsSigSegmentedCurve)) goto Error;
if (!_cmsWriteUInt32Number(io, 0)) goto Error;
if (!_cmsWriteUInt16Number(io, (cmsUInt16Number) nSegments)) goto Error;
if (!_cmsWriteUInt16Number(io, 0)) goto Error;
// Write the break-points
for (i=0; i < nSegments - 1; i++) {
if (!_cmsWriteFloat32Number(io, Segments[i].x1)) goto Error;
}
// Write the segments
for (i=0; i < g ->nSegments; i++) {
cmsCurveSegment* ActualSeg = Segments + i;
if (ActualSeg -> Type == 0) {
// This is a sampled curve
if (!_cmsWriteUInt32Number(io, (cmsUInt32Number) cmsSigSampledCurveSeg)) goto Error;
if (!_cmsWriteUInt32Number(io, 0)) goto Error;
if (!_cmsWriteUInt32Number(io, ActualSeg -> nGridPoints)) goto Error;
for (j=0; j < g ->Segments[i].nGridPoints; j++) {
if (!_cmsWriteFloat32Number(io, ActualSeg -> SampledPoints[j])) goto Error;
}
}
else {
int Type;
cmsUInt32Number ParamsByType[] = { 4, 5, 5 };
// This is a formula-based
if (!_cmsWriteUInt32Number(io, (cmsUInt32Number) cmsSigFormulaCurveSeg)) goto Error;
if (!_cmsWriteUInt32Number(io, 0)) goto Error;
// We only allow 1, 2 and 3 as types
Type = ActualSeg ->Type - 6;
if (Type > 2 || Type < 0) goto Error;
if (!_cmsWriteUInt16Number(io, (cmsUInt16Number) Type)) goto Error;
if (!_cmsWriteUInt16Number(io, 0)) goto Error;
for (j=0; j < ParamsByType[Type]; j++) {
if (!_cmsWriteFloat32Number(io, (cmsFloat32Number) ActualSeg ->Params[j])) goto Error;
}
}
// It seems there is no need to align. Code is here, and for safety commented out
// if (!_cmsWriteAlignment(io)) goto Error;
}
return TRUE;
Error:
return FALSE;
}
static
cmsBool WriteMPECurve(struct _cms_typehandler_struct* self,
cmsIOHANDLER* io,
void* Cargo,
cmsUInt32Number n,
cmsUInt32Number SizeOfTag)
{
_cmsStageToneCurvesData* Curves = (_cmsStageToneCurvesData*) Cargo;
return WriteSegmentedCurve(io, Curves ->TheCurves[n]);
cmsUNUSED_PARAMETER(SizeOfTag);
cmsUNUSED_PARAMETER(self);
}
// Write a curve, checking first for validity
static
cmsBool Type_MPEcurve_Write(struct _cms_typehandler_struct* self, cmsIOHANDLER* io, void* Ptr, cmsUInt32Number nItems)
{
cmsUInt32Number BaseOffset;
cmsStage* mpe = (cmsStage*) Ptr;
_cmsStageToneCurvesData* Curves = (_cmsStageToneCurvesData*) mpe ->Data;
BaseOffset = io ->Tell(io) - sizeof(_cmsTagBase);
// Write the header. Since those are curves, input and output channels are same
if (!_cmsWriteUInt16Number(io, (cmsUInt16Number) mpe ->InputChannels)) return FALSE;
if (!_cmsWriteUInt16Number(io, (cmsUInt16Number) mpe ->InputChannels)) return FALSE;
if (!WritePositionTable(self, io, 0,
mpe ->InputChannels, BaseOffset, Curves, WriteMPECurve)) return FALSE;
return TRUE;
cmsUNUSED_PARAMETER(nItems);
}
// The matrix is organized as an array of PxQ+Q elements, where P is the number of input channels to the
// matrix, and Q is the number of output channels. The matrix elements are each float32Numbers. The array
// is organized as follows:
// array = [e11, e12, à, e1P, e21, e22, à, e2P, à, eQ1, eQ2, à, eQP, e1, e2, à, eQ]
static
void *Type_MPEmatrix_Read(struct _cms_typehandler_struct* self, cmsIOHANDLER* io, cmsUInt32Number* nItems, cmsUInt32Number SizeOfTag)
{
cmsStage* mpe;
cmsUInt16Number InputChans, OutputChans;
cmsUInt32Number nElems, i;
cmsFloat64Number* Matrix;
cmsFloat64Number* Offsets;
if (!_cmsReadUInt16Number(io, &InputChans)) return NULL;
if (!_cmsReadUInt16Number(io, &OutputChans)) return NULL;
nElems = InputChans * OutputChans;
// Input and output chans may be ANY (up to 0xffff)
Matrix = (cmsFloat64Number*) _cmsCalloc(self ->ContextID, nElems, sizeof(cmsFloat64Number));
if (Matrix == NULL) return NULL;
Offsets = (cmsFloat64Number*) _cmsCalloc(self ->ContextID, OutputChans, sizeof(cmsFloat64Number));
if (Offsets == NULL) {
_cmsFree(self ->ContextID, Matrix);
return NULL;
}
for (i=0; i < nElems; i++) {
cmsFloat32Number v;
if (!_cmsReadFloat32Number(io, &v)) return NULL;
Matrix[i] = v;
}
for (i=0; i < OutputChans; i++) {
cmsFloat32Number v;
if (!_cmsReadFloat32Number(io, &v)) return NULL;
Offsets[i] = v;
}
mpe = cmsStageAllocMatrix(self ->ContextID, OutputChans, InputChans, Matrix, Offsets);
_cmsFree(self ->ContextID, Matrix);
_cmsFree(self ->ContextID, Offsets);
*nItems = 1;
return mpe;
cmsUNUSED_PARAMETER(SizeOfTag);
}
static
cmsBool Type_MPEmatrix_Write(struct _cms_typehandler_struct* self, cmsIOHANDLER* io, void* Ptr, cmsUInt32Number nItems)
{
cmsUInt32Number i, nElems;
cmsStage* mpe = (cmsStage*) Ptr;
_cmsStageMatrixData* Matrix = (_cmsStageMatrixData*) mpe ->Data;
if (!_cmsWriteUInt16Number(io, (cmsUInt16Number) mpe ->InputChannels)) return FALSE;
if (!_cmsWriteUInt16Number(io, (cmsUInt16Number) mpe ->OutputChannels)) return FALSE;
nElems = mpe ->InputChannels * mpe ->OutputChannels;
for (i=0; i < nElems; i++) {
if (!_cmsWriteFloat32Number(io, (cmsFloat32Number) Matrix->Double[i])) return FALSE;
}
for (i=0; i < mpe ->OutputChannels; i++) {
if (Matrix ->Offset == NULL) {
if (!_cmsWriteFloat32Number(io, 0)) return FALSE;
}
else {
if (!_cmsWriteFloat32Number(io, (cmsFloat32Number) Matrix->Offset[i])) return FALSE;
}
}
return TRUE;
cmsUNUSED_PARAMETER(nItems);
cmsUNUSED_PARAMETER(self);
}
static
void *Type_MPEclut_Read(struct _cms_typehandler_struct* self, cmsIOHANDLER* io, cmsUInt32Number* nItems, cmsUInt32Number SizeOfTag)
{
cmsStage* mpe = NULL;
cmsUInt16Number InputChans, OutputChans;
cmsUInt8Number Dimensions8[16];
cmsUInt32Number i, nMaxGrids, GridPoints[MAX_INPUT_DIMENSIONS];
_cmsStageCLutData* clut;
if (!_cmsReadUInt16Number(io, &InputChans)) return NULL;
if (!_cmsReadUInt16Number(io, &OutputChans)) return NULL;
if (InputChans == 0) goto Error;
if (OutputChans == 0) goto Error;
if (io ->Read(io, Dimensions8, sizeof(cmsUInt8Number), 16) != 16)
goto Error;
// Copy MAX_INPUT_DIMENSIONS at most. Expand to cmsUInt32Number
nMaxGrids = InputChans > MAX_INPUT_DIMENSIONS ? MAX_INPUT_DIMENSIONS : InputChans;
for (i=0; i < nMaxGrids; i++) GridPoints[i] = (cmsUInt32Number) Dimensions8[i];
// Allocate the true CLUT
mpe = cmsStageAllocCLutFloatGranular(self ->ContextID, GridPoints, InputChans, OutputChans, NULL);
if (mpe == NULL) goto Error;
// Read the data
clut = (_cmsStageCLutData*) mpe ->Data;
for (i=0; i < clut ->nEntries; i++) {
if (!_cmsReadFloat32Number(io, &clut ->Tab.TFloat[i])) goto Error;
}
*nItems = 1;
return mpe;
Error:
*nItems = 0;
if (mpe != NULL) cmsStageFree(mpe);
return NULL;
cmsUNUSED_PARAMETER(SizeOfTag);
}
// Write a CLUT in floating point
static
cmsBool Type_MPEclut_Write(struct _cms_typehandler_struct* self, cmsIOHANDLER* io, void* Ptr, cmsUInt32Number nItems)
{
cmsUInt8Number Dimensions8[16];
cmsUInt32Number i;
cmsStage* mpe = (cmsStage*) Ptr;
_cmsStageCLutData* clut = (_cmsStageCLutData*) mpe ->Data;
// Check for maximum number of channels
if (mpe -> InputChannels > 15) return FALSE;
// Only floats are supported in MPE
if (clut ->HasFloatValues == FALSE) return FALSE;
if (!_cmsWriteUInt16Number(io, (cmsUInt16Number) mpe ->InputChannels)) return FALSE;
if (!_cmsWriteUInt16Number(io, (cmsUInt16Number) mpe ->OutputChannels)) return FALSE;
memset(Dimensions8, 0, sizeof(Dimensions8));
for (i=0; i < mpe ->InputChannels; i++)
Dimensions8[i] = (cmsUInt8Number) clut ->Params ->nSamples[i];
if (!io ->Write(io, 16, Dimensions8)) return FALSE;
for (i=0; i < clut ->nEntries; i++) {
if (!_cmsWriteFloat32Number(io, clut ->Tab.TFloat[i])) return FALSE;
}
return TRUE;
cmsUNUSED_PARAMETER(nItems);
cmsUNUSED_PARAMETER(self);
}
// This is the list of built-in MPE types
static _cmsTagTypeLinkedList SupportedMPEtypes[] = {
{{ (cmsTagTypeSignature) cmsSigBAcsElemType, NULL, NULL, NULL, NULL, NULL, 0 }, &SupportedMPEtypes[1] }, // Ignore those elements for now
{{ (cmsTagTypeSignature) cmsSigEAcsElemType, NULL, NULL, NULL, NULL, NULL, 0 }, &SupportedMPEtypes[2] }, // (That's what the spec says)
{TYPE_MPE_HANDLER((cmsTagTypeSignature) cmsSigCurveSetElemType, MPEcurve), &SupportedMPEtypes[3] },
{TYPE_MPE_HANDLER((cmsTagTypeSignature) cmsSigMatrixElemType, MPEmatrix), &SupportedMPEtypes[4] },
{TYPE_MPE_HANDLER((cmsTagTypeSignature) cmsSigCLutElemType, MPEclut), NULL },
};
#define DEFAULT_MPE_TYPE_COUNT (sizeof(SupportedMPEtypes) / sizeof(_cmsTagTypeLinkedList))
static
cmsBool ReadMPEElem(struct _cms_typehandler_struct* self,
cmsIOHANDLER* io,
void* Cargo,
cmsUInt32Number n,
cmsUInt32Number SizeOfTag)
{
cmsStageSignature ElementSig;
cmsTagTypeHandler* TypeHandler;
cmsUInt32Number nItems;
cmsPipeline *NewLUT = (cmsPipeline *) Cargo;
// Take signature and channels for each element.
if (!_cmsReadUInt32Number(io, (cmsUInt32Number*) &ElementSig)) return FALSE;
// The reserved placeholder
if (!_cmsReadUInt32Number(io, NULL)) return FALSE;
// Read diverse MPE types
TypeHandler = GetHandler((cmsTagTypeSignature) ElementSig, SupportedMPEtypes);
if (TypeHandler == NULL) {
char String[5];
_cmsTagSignature2String(String, (cmsTagSignature) ElementSig);
// An unknown element was found.
cmsSignalError(self ->ContextID, cmsERROR_UNKNOWN_EXTENSION, "Unknown MPE type '%s' found.", String);
return FALSE;
}
// If no read method, just ignore the element (valid for cmsSigBAcsElemType and cmsSigEAcsElemType)
// Read the MPE. No size is given
if (TypeHandler ->ReadPtr != NULL) {
// This is a real element which should be read and processed
if (!cmsPipelineInsertStage(NewLUT, cmsAT_END, (cmsStage*) TypeHandler ->ReadPtr(self, io, &nItems, SizeOfTag)))
return FALSE;
}
return TRUE;
cmsUNUSED_PARAMETER(SizeOfTag);
cmsUNUSED_PARAMETER(n);
}
// This is the main dispatcher for MPE
static
void *Type_MPE_Read(struct _cms_typehandler_struct* self, cmsIOHANDLER* io, cmsUInt32Number* nItems, cmsUInt32Number SizeOfTag)
{
cmsUInt16Number InputChans, OutputChans;
cmsUInt32Number ElementCount;
cmsPipeline *NewLUT = NULL;
cmsUInt32Number BaseOffset;
// Get actual position as a basis for element offsets
BaseOffset = io ->Tell(io) - sizeof(_cmsTagBase);
// Read channels and element count
if (!_cmsReadUInt16Number(io, &InputChans)) return NULL;
if (!_cmsReadUInt16Number(io, &OutputChans)) return NULL;
// Allocates an empty LUT
NewLUT = cmsPipelineAlloc(self ->ContextID, InputChans, OutputChans);
if (NewLUT == NULL) return NULL;
if (!_cmsReadUInt32Number(io, &ElementCount)) return NULL;
if (!ReadPositionTable(self, io, ElementCount, BaseOffset, NewLUT, ReadMPEElem)) {
if (NewLUT != NULL) cmsPipelineFree(NewLUT);
*nItems = 0;
return NULL;
}
// Success
*nItems = 1;
return NewLUT;
cmsUNUSED_PARAMETER(SizeOfTag);
}
// This one is a liitle bit more complex, so we don't use position tables this time.
static
cmsBool Type_MPE_Write(struct _cms_typehandler_struct* self, cmsIOHANDLER* io, void* Ptr, cmsUInt32Number nItems)
{
cmsUInt32Number i, BaseOffset, DirectoryPos, CurrentPos;
int inputChan, outputChan;
cmsUInt32Number ElemCount;
cmsUInt32Number *ElementOffsets = NULL, *ElementSizes = NULL, Before;
cmsStageSignature ElementSig;
cmsPipeline* Lut = (cmsPipeline*) Ptr;
cmsStage* Elem = Lut ->Elements;
cmsTagTypeHandler* TypeHandler;
BaseOffset = io ->Tell(io) - sizeof(_cmsTagBase);
inputChan = cmsPipelineInputChannels(Lut);
outputChan = cmsPipelineOutputChannels(Lut);
ElemCount = cmsPipelineStageCount(Lut);
ElementOffsets = (cmsUInt32Number *) _cmsCalloc(self ->ContextID, ElemCount, sizeof(cmsUInt32Number));
if (ElementOffsets == NULL) goto Error;
ElementSizes = (cmsUInt32Number *) _cmsCalloc(self ->ContextID, ElemCount, sizeof(cmsUInt32Number));
if (ElementSizes == NULL) goto Error;
// Write the head
if (!_cmsWriteUInt16Number(io, (cmsUInt16Number) inputChan)) goto Error;
if (!_cmsWriteUInt16Number(io, (cmsUInt16Number) outputChan)) goto Error;
if (!_cmsWriteUInt32Number(io, (cmsUInt16Number) ElemCount)) goto Error;
DirectoryPos = io ->Tell(io);
// Write a fake directory to be filled latter on
for (i=0; i < ElemCount; i++) {
if (!_cmsWriteUInt32Number(io, 0)) goto Error; // Offset
if (!_cmsWriteUInt32Number(io, 0)) goto Error; // size
}
// Write each single tag. Keep track of the size as well.
for (i=0; i < ElemCount; i++) {
ElementOffsets[i] = io ->Tell(io) - BaseOffset;
ElementSig = Elem ->Type;
TypeHandler = GetHandler((cmsTagTypeSignature) ElementSig, SupportedMPEtypes);
if (TypeHandler == NULL) {
char String[5];
_cmsTagSignature2String(String, (cmsTagSignature) ElementSig);
// An unknow element was found.
cmsSignalError(self->ContextID, cmsERROR_UNKNOWN_EXTENSION, "Found unknown MPE type '%s'", String);
goto Error;
}
if (!_cmsWriteUInt32Number(io, ElementSig)) goto Error;
if (!_cmsWriteUInt32Number(io, 0)) goto Error;
Before = io ->Tell(io);
if (!TypeHandler ->WritePtr(self, io, Elem, 1)) goto Error;
if (!_cmsWriteAlignment(io)) goto Error;
ElementSizes[i] = io ->Tell(io) - Before;
Elem = Elem ->Next;
}
// Write the directory
CurrentPos = io ->Tell(io);
if (!io ->Seek(io, DirectoryPos)) goto Error;
for (i=0; i < ElemCount; i++) {
if (!_cmsWriteUInt32Number(io, ElementOffsets[i])) goto Error;
if (!_cmsWriteUInt32Number(io, ElementSizes[i])) goto Error;
}
if (!io ->Seek(io, CurrentPos)) goto Error;
if (ElementOffsets != NULL) _cmsFree(self ->ContextID, ElementOffsets);
if (ElementSizes != NULL) _cmsFree(self ->ContextID, ElementSizes);
return TRUE;
Error:
if (ElementOffsets != NULL) _cmsFree(self ->ContextID, ElementOffsets);
if (ElementSizes != NULL) _cmsFree(self ->ContextID, ElementSizes);
return FALSE;
cmsUNUSED_PARAMETER(nItems);
}
static
void* Type_MPE_Dup(struct _cms_typehandler_struct* self, const void *Ptr, cmsUInt32Number n)
{
return (void*) cmsPipelineDup((cmsPipeline*) Ptr);
cmsUNUSED_PARAMETER(n);
cmsUNUSED_PARAMETER(self);
}
static
void Type_MPE_Free(struct _cms_typehandler_struct* self, void *Ptr)
{
cmsPipelineFree((cmsPipeline*) Ptr);
return;
cmsUNUSED_PARAMETER(self);
}
// ********************************************************************************
// Type cmsSigVcgtType
// ********************************************************************************
#define cmsVideoCardGammaTableType 0
#define cmsVideoCardGammaFormulaType 1
// Used internally
typedef struct {
double Gamma;
double Min;
double Max;
} _cmsVCGTGAMMA;
static
void *Type_vcgt_Read(struct _cms_typehandler_struct* self,
cmsIOHANDLER* io,
cmsUInt32Number* nItems,
cmsUInt32Number SizeOfTag)
{
cmsUInt32Number TagType, n, i;
cmsToneCurve** Curves;
*nItems = 0;
// Read tag type
if (!_cmsReadUInt32Number(io, &TagType)) return NULL;
// Allocate space for the array
Curves = ( cmsToneCurve**) _cmsCalloc(self ->ContextID, 3, sizeof(cmsToneCurve*));
if (Curves == NULL) return NULL;
// There are two possible flavors
switch (TagType) {
// Gamma is stored as a table
case cmsVideoCardGammaTableType:
{
cmsUInt16Number nChannels, nElems, nBytes;
// Check channel count, which should be 3 (we don't support monochrome this time)
if (!_cmsReadUInt16Number(io, &nChannels)) goto Error;
if (nChannels != 3) {
cmsSignalError(self->ContextID, cmsERROR_UNKNOWN_EXTENSION, "Unsupported number of channels for VCGT '%d'", nChannels);
goto Error;
}
// Get Table element count and bytes per element
if (!_cmsReadUInt16Number(io, &nElems)) goto Error;
if (!_cmsReadUInt16Number(io, &nBytes)) goto Error;
// Adobe's quirk fixup. Fixing broken profiles...
if (nElems == 256 && nBytes == 1 && SizeOfTag == 1576)
nBytes = 2;
// Populate tone curves
for (n=0; n < 3; n++) {
Curves[n] = cmsBuildTabulatedToneCurve16(self ->ContextID, nElems, NULL);
if (Curves[n] == NULL) goto Error;
// On depending on byte depth
switch (nBytes) {
// One byte, 0..255
case 1:
for (i=0; i < nElems; i++) {
cmsUInt8Number v;
if (!_cmsReadUInt8Number(io, &v)) goto Error;
Curves[n] ->Table16[i] = FROM_8_TO_16(v);
}
break;
// One word 0..65535
case 2:
if (!_cmsReadUInt16Array(io, nElems, Curves[n]->Table16)) goto Error;
break;
// Unsupported
default:
cmsSignalError(self->ContextID, cmsERROR_UNKNOWN_EXTENSION, "Unsupported bit depth for VCGT '%d'", nBytes * 8);
goto Error;
}
} // For all 3 channels
}
break;
// In this case, gamma is stored as a formula
case cmsVideoCardGammaFormulaType:
{
_cmsVCGTGAMMA Colorant[3];
// Populate tone curves
for (n=0; n < 3; n++) {
double Params[10];
if (!_cmsRead15Fixed16Number(io, &Colorant[n].Gamma)) goto Error;
if (!_cmsRead15Fixed16Number(io, &Colorant[n].Min)) goto Error;
if (!_cmsRead15Fixed16Number(io, &Colorant[n].Max)) goto Error;
// Parametric curve type 5 is:
// Y = (aX + b)^Gamma + e | X >= d
// Y = cX + f | X < d
// vcgt formula is:
// Y = (Max û Min) * (X ^ Gamma) + Min
// So, the translation is
// a = (Max û Min) ^ ( 1 / Gamma)
// e = Min
// b=c=d=f=0
Params[0] = Colorant[n].Gamma;
Params[1] = pow((Colorant[n].Max - Colorant[n].Min), (1.0 / Colorant[n].Gamma));
Params[2] = 0;
Params[3] = 0;
Params[4] = 0;
Params[5] = Colorant[n].Min;
Params[6] = 0;
Curves[n] = cmsBuildParametricToneCurve(self ->ContextID, 5, Params);
if (Curves[n] == NULL) goto Error;
}
}
break;
// Unsupported
default:
cmsSignalError(self->ContextID, cmsERROR_UNKNOWN_EXTENSION, "Unsupported tag type for VCGT '%d'", TagType);
goto Error;
}
*nItems = 1;
return (void*) Curves;
// Regret, free all resources
Error:
cmsFreeToneCurveTriple(Curves);
_cmsFree(self ->ContextID, Curves);
return NULL;
cmsUNUSED_PARAMETER(SizeOfTag);
}
// We don't support all flavors, only 16bits tables and formula
static
cmsBool Type_vcgt_Write(struct _cms_typehandler_struct* self, cmsIOHANDLER* io, void* Ptr, cmsUInt32Number nItems)
{
cmsToneCurve** Curves = (cmsToneCurve**) Ptr;
cmsUInt32Number i, j;
if (cmsGetToneCurveParametricType(Curves[0]) == 5 &&
cmsGetToneCurveParametricType(Curves[1]) == 5 &&
cmsGetToneCurveParametricType(Curves[2]) == 5) {
if (!_cmsWriteUInt32Number(io, cmsVideoCardGammaFormulaType)) return FALSE;
// Save parameters
for (i=0; i < 3; i++) {
_cmsVCGTGAMMA v;
v.Gamma = Curves[i] ->Segments[0].Params[0];
v.Min = Curves[i] ->Segments[0].Params[5];
v.Max = pow(Curves[i] ->Segments[0].Params[1], v.Gamma) + v.Min;
if (!_cmsWrite15Fixed16Number(io, v.Gamma)) return FALSE;
if (!_cmsWrite15Fixed16Number(io, v.Min)) return FALSE;
if (!_cmsWrite15Fixed16Number(io, v.Max)) return FALSE;
}
}
else {
// Always store as a table of 256 words
if (!_cmsWriteUInt32Number(io, cmsVideoCardGammaTableType)) return FALSE;
if (!_cmsWriteUInt16Number(io, 3)) return FALSE;
if (!_cmsWriteUInt16Number(io, 256)) return FALSE;
if (!_cmsWriteUInt16Number(io, 2)) return FALSE;
for (i=0; i < 3; i++) {
for (j=0; j < 256; j++) {
cmsFloat32Number v = cmsEvalToneCurveFloat(Curves[i], (cmsFloat32Number) (j / 255.0));
cmsUInt16Number n = _cmsQuickSaturateWord(v * 65535.0);
if (!_cmsWriteUInt16Number(io, n)) return FALSE;
}
}
}
return TRUE;
cmsUNUSED_PARAMETER(self);
cmsUNUSED_PARAMETER(nItems);
}
static
void* Type_vcgt_Dup(struct _cms_typehandler_struct* self, const void *Ptr, cmsUInt32Number n)
{
cmsToneCurve** OldCurves = (cmsToneCurve**) Ptr;
cmsToneCurve** NewCurves;
NewCurves = ( cmsToneCurve**) _cmsCalloc(self ->ContextID, 3, sizeof(cmsToneCurve*));
if (NewCurves == NULL) return NULL;
NewCurves[0] = cmsDupToneCurve(OldCurves[0]);
NewCurves[1] = cmsDupToneCurve(OldCurves[1]);
NewCurves[2] = cmsDupToneCurve(OldCurves[2]);
return (void*) NewCurves;
cmsUNUSED_PARAMETER(n);
}
static
void Type_vcgt_Free(struct _cms_typehandler_struct* self, void* Ptr)
{
cmsFreeToneCurveTriple((cmsToneCurve**) Ptr);
_cmsFree(self ->ContextID, Ptr);
}
// ********************************************************************************
// Type cmsSigDictType
// ********************************************************************************
// Single column of the table can point to wchar or MLUC elements. Holds arrays of data
typedef struct {
cmsContext ContextID;
cmsUInt32Number *Offsets;
cmsUInt32Number *Sizes;
} _cmsDICelem;
typedef struct {
_cmsDICelem Name, Value, DisplayName, DisplayValue;
} _cmsDICarray;
// Allocate an empty array element
static
cmsBool AllocElem(cmsContext ContextID, _cmsDICelem* e, cmsUInt32Number Count)
{
e->Offsets = (cmsUInt32Number *) _cmsCalloc(ContextID, Count, sizeof(cmsUInt32Number));
if (e->Offsets == NULL) return FALSE;
e->Sizes = (cmsUInt32Number *) _cmsCalloc(ContextID, Count, sizeof(cmsUInt32Number));
if (e->Sizes == NULL) {
_cmsFree(ContextID, e -> Offsets);
return FALSE;
}
e ->ContextID = ContextID;
return TRUE;
}
// Free an array element
static
void FreeElem(_cmsDICelem* e)
{
if (e ->Offsets != NULL) _cmsFree(e -> ContextID, e -> Offsets);
if (e ->Sizes != NULL) _cmsFree(e -> ContextID, e -> Sizes);
e->Offsets = e ->Sizes = NULL;
}
// Get rid of whole array
static
void FreeArray( _cmsDICarray* a)
{
if (a ->Name.Offsets != NULL) FreeElem(&a->Name);
if (a ->Value.Offsets != NULL) FreeElem(&a ->Value);
if (a ->DisplayName.Offsets != NULL) FreeElem(&a->DisplayName);
if (a ->DisplayValue.Offsets != NULL) FreeElem(&a ->DisplayValue);
}
// Allocate whole array
static
cmsBool AllocArray(cmsContext ContextID, _cmsDICarray* a, cmsUInt32Number Count, cmsUInt32Number Length)
{
// Empty values
memset(a, 0, sizeof(_cmsDICarray));
// On depending on record size, create column arrays
if (!AllocElem(ContextID, &a ->Name, Count)) goto Error;
if (!AllocElem(ContextID, &a ->Value, Count)) goto Error;
if (Length > 16) {
if (!AllocElem(ContextID, &a -> DisplayName, Count)) goto Error;
}
if (Length > 24) {
if (!AllocElem(ContextID, &a ->DisplayValue, Count)) goto Error;
}
return TRUE;
Error:
FreeArray(a);
return FALSE;
}
// Read one element
static
cmsBool ReadOneElem(cmsIOHANDLER* io, _cmsDICelem* e, cmsUInt32Number i, cmsUInt32Number BaseOffset)
{
if (!_cmsReadUInt32Number(io, &e->Offsets[i])) return FALSE;
if (!_cmsReadUInt32Number(io, &e ->Sizes[i])) return FALSE;
// An offset of zero has special meaning and shal be preserved
if (e ->Offsets[i] > 0)
e ->Offsets[i] += BaseOffset;
return TRUE;
}
static
cmsBool ReadOffsetArray(cmsIOHANDLER* io, _cmsDICarray* a, cmsUInt32Number Count, cmsUInt32Number Length, cmsUInt32Number BaseOffset)
{
cmsUInt32Number i;
// Read column arrays
for (i=0; i < Count; i++) {
if (!ReadOneElem(io, &a -> Name, i, BaseOffset)) return FALSE;
if (!ReadOneElem(io, &a -> Value, i, BaseOffset)) return FALSE;
if (Length > 16) {
if (!ReadOneElem(io, &a ->DisplayName, i, BaseOffset)) return FALSE;
}
if (Length > 24) {
if (!ReadOneElem(io, & a -> DisplayValue, i, BaseOffset)) return FALSE;
}
}
return TRUE;
}
// Write one element
static
cmsBool WriteOneElem(cmsIOHANDLER* io, _cmsDICelem* e, cmsUInt32Number i)
{
if (!_cmsWriteUInt32Number(io, e->Offsets[i])) return FALSE;
if (!_cmsWriteUInt32Number(io, e ->Sizes[i])) return FALSE;
return TRUE;
}
static
cmsBool WriteOffsetArray(cmsIOHANDLER* io, _cmsDICarray* a, cmsUInt32Number Count, cmsUInt32Number Length)
{
cmsUInt32Number i;
for (i=0; i < Count; i++) {
if (!WriteOneElem(io, &a -> Name, i)) return FALSE;
if (!WriteOneElem(io, &a -> Value, i)) return FALSE;
if (Length > 16) {
if (!WriteOneElem(io, &a -> DisplayName, i)) return FALSE;
}
if (Length > 24) {
if (!WriteOneElem(io, &a -> DisplayValue, i)) return FALSE;
}
}
return TRUE;
}
static
cmsBool ReadOneWChar(cmsIOHANDLER* io, _cmsDICelem* e, cmsUInt32Number i, wchar_t ** wcstr)
{
cmsUInt32Number nChars;
// Special case for undefined strings (see ICC Votable
// Proposal Submission, Dictionary Type and Metadata TAG Definition)
if (e -> Offsets[i] == 0) {
*wcstr = NULL;
return TRUE;
}
if (!io -> Seek(io, e -> Offsets[i])) return FALSE;
nChars = e ->Sizes[i] / sizeof(cmsUInt16Number);
*wcstr = (wchar_t*) _cmsMallocZero(e ->ContextID, (nChars + 1) * sizeof(wchar_t));
if (*wcstr == NULL) return FALSE;
if (!_cmsReadWCharArray(io, nChars, *wcstr)) {
_cmsFree(e ->ContextID, *wcstr);
return FALSE;
}
// End of string marker
(*wcstr)[nChars] = 0;
return TRUE;
}
static
cmsUInt32Number mywcslen(const wchar_t *s)
{
const wchar_t *p;
p = s;
while (*p)
p++;
return (cmsUInt32Number)(p - s);
}
static
cmsBool WriteOneWChar(cmsIOHANDLER* io, _cmsDICelem* e, cmsUInt32Number i, const wchar_t * wcstr, cmsUInt32Number BaseOffset)
{
cmsUInt32Number Before = io ->Tell(io);
cmsUInt32Number n;
e ->Offsets[i] = Before - BaseOffset;
if (wcstr == NULL) {
e ->Sizes[i] = 0;
e ->Offsets[i] = 0;
return TRUE;
}
n = mywcslen(wcstr);
if (!_cmsWriteWCharArray(io, n, wcstr)) return FALSE;
e ->Sizes[i] = io ->Tell(io) - Before;
return TRUE;
}
static
cmsBool ReadOneMLUC(struct _cms_typehandler_struct* self, cmsIOHANDLER* io, _cmsDICelem* e, cmsUInt32Number i, cmsMLU** mlu)
{
cmsUInt32Number nItems = 0;
// A way to get null MLUCs
if (e -> Offsets[i] == 0 || e ->Sizes[i] == 0) {
*mlu = NULL;
return TRUE;
}
if (!io -> Seek(io, e -> Offsets[i])) return FALSE;
*mlu = (cmsMLU*) Type_MLU_Read(self, io, &nItems, e ->Sizes[i]);
return *mlu != NULL;
}
static
cmsBool WriteOneMLUC(struct _cms_typehandler_struct* self, cmsIOHANDLER* io, _cmsDICelem* e, cmsUInt32Number i, const cmsMLU* mlu, cmsUInt32Number BaseOffset)
{
cmsUInt32Number Before;
// Special case for undefined strings (see ICC Votable
// Proposal Submission, Dictionary Type and Metadata TAG Definition)
if (mlu == NULL) {
e ->Sizes[i] = 0;
e ->Offsets[i] = 0;
return TRUE;
}
Before = io ->Tell(io);
e ->Offsets[i] = Before - BaseOffset;
if (!Type_MLU_Write(self, io, (void*) mlu, 1)) return FALSE;
e ->Sizes[i] = io ->Tell(io) - Before;
return TRUE;
}
static
void *Type_Dictionary_Read(struct _cms_typehandler_struct* self, cmsIOHANDLER* io, cmsUInt32Number* nItems, cmsUInt32Number SizeOfTag)
{
cmsHANDLE hDict;
cmsUInt32Number i, Count, Length;
cmsUInt32Number BaseOffset;
_cmsDICarray a;
wchar_t *NameWCS = NULL, *ValueWCS = NULL;
cmsMLU *DisplayNameMLU = NULL, *DisplayValueMLU=NULL;
cmsBool rc;
*nItems = 0;
// Get actual position as a basis for element offsets
BaseOffset = io ->Tell(io) - sizeof(_cmsTagBase);
// Get name-value record count
if (!_cmsReadUInt32Number(io, &Count)) return NULL;
SizeOfTag -= sizeof(cmsUInt32Number);
// Get rec length
if (!_cmsReadUInt32Number(io, &Length)) return NULL;
SizeOfTag -= sizeof(cmsUInt32Number);
// Check for valid lengths
if (Length != 16 && Length != 24 && Length != 32) {
cmsSignalError(self->ContextID, cmsERROR_UNKNOWN_EXTENSION, "Unknown record length in dictionary '%d'", Length);
return NULL;
}
// Creates an empty dictionary
hDict = cmsDictAlloc(self -> ContextID);
if (hDict == NULL) return NULL;
// On depending on record size, create column arrays
if (!AllocArray(self -> ContextID, &a, Count, Length)) goto Error;
// Read column arrays
if (!ReadOffsetArray(io, &a, Count, Length, BaseOffset)) goto Error;
// Seek to each element and read it
for (i=0; i < Count; i++) {
if (!ReadOneWChar(io, &a.Name, i, &NameWCS)) goto Error;
if (!ReadOneWChar(io, &a.Value, i, &ValueWCS)) goto Error;
if (Length > 16) {
if (!ReadOneMLUC(self, io, &a.DisplayName, i, &DisplayNameMLU)) goto Error;
}
if (Length > 24) {
if (!ReadOneMLUC(self, io, &a.DisplayValue, i, &DisplayValueMLU)) goto Error;
}
if (NameWCS == NULL || ValueWCS == NULL) {
cmsSignalError(self->ContextID, cmsERROR_CORRUPTION_DETECTED, "Bad dictionary Name/Value");
rc = FALSE;
}
else {
rc = cmsDictAddEntry(hDict, NameWCS, ValueWCS, DisplayNameMLU, DisplayValueMLU);
}
if (NameWCS != NULL) _cmsFree(self ->ContextID, NameWCS);
if (ValueWCS != NULL) _cmsFree(self ->ContextID, ValueWCS);
if (DisplayNameMLU != NULL) cmsMLUfree(DisplayNameMLU);
if (DisplayValueMLU != NULL) cmsMLUfree(DisplayValueMLU);
if (!rc) goto Error;
}
FreeArray(&a);
*nItems = 1;
return (void*) hDict;
Error:
FreeArray(&a);
cmsDictFree(hDict);
return NULL;
}
static
cmsBool Type_Dictionary_Write(struct _cms_typehandler_struct* self, cmsIOHANDLER* io, void* Ptr, cmsUInt32Number nItems)
{
cmsHANDLE hDict = (cmsHANDLE) Ptr;
const cmsDICTentry* p;
cmsBool AnyName, AnyValue;
cmsUInt32Number i, Count, Length;
cmsUInt32Number DirectoryPos, CurrentPos, BaseOffset;
_cmsDICarray a;
if (hDict == NULL) return FALSE;
BaseOffset = io ->Tell(io) - sizeof(_cmsTagBase);
// Let's inspect the dictionary
Count = 0; AnyName = FALSE; AnyValue = FALSE;
for (p = cmsDictGetEntryList(hDict); p != NULL; p = cmsDictNextEntry(p)) {
if (p ->DisplayName != NULL) AnyName = TRUE;
if (p ->DisplayValue != NULL) AnyValue = TRUE;
Count++;
}
Length = 16;
if (AnyName) Length += 8;
if (AnyValue) Length += 8;
if (!_cmsWriteUInt32Number(io, Count)) return FALSE;
if (!_cmsWriteUInt32Number(io, Length)) return FALSE;
// Keep starting position of offsets table
DirectoryPos = io ->Tell(io);
// Allocate offsets array
if (!AllocArray(self ->ContextID, &a, Count, Length)) goto Error;
// Write a fake directory to be filled latter on
if (!WriteOffsetArray(io, &a, Count, Length)) goto Error;
// Write each element. Keep track of the size as well.
p = cmsDictGetEntryList(hDict);
for (i=0; i < Count; i++) {
if (!WriteOneWChar(io, &a.Name, i, p ->Name, BaseOffset)) goto Error;
if (!WriteOneWChar(io, &a.Value, i, p ->Value, BaseOffset)) goto Error;
if (p ->DisplayName != NULL) {
if (!WriteOneMLUC(self, io, &a.DisplayName, i, p ->DisplayName, BaseOffset)) goto Error;
}
if (p ->DisplayValue != NULL) {
if (!WriteOneMLUC(self, io, &a.DisplayValue, i, p ->DisplayValue, BaseOffset)) goto Error;
}
p = cmsDictNextEntry(p);
}
// Write the directory
CurrentPos = io ->Tell(io);
if (!io ->Seek(io, DirectoryPos)) goto Error;
if (!WriteOffsetArray(io, &a, Count, Length)) goto Error;
if (!io ->Seek(io, CurrentPos)) goto Error;
FreeArray(&a);
return TRUE;
Error:
FreeArray(&a);
return FALSE;
cmsUNUSED_PARAMETER(nItems);
}
static
void* Type_Dictionary_Dup(struct _cms_typehandler_struct* self, const void *Ptr, cmsUInt32Number n)
{
return (void*) cmsDictDup((cmsHANDLE) Ptr);
cmsUNUSED_PARAMETER(n);
cmsUNUSED_PARAMETER(self);
}
static
void Type_Dictionary_Free(struct _cms_typehandler_struct* self, void* Ptr)
{
cmsDictFree((cmsHANDLE) Ptr);
cmsUNUSED_PARAMETER(self);
}
// ********************************************************************************
// Type support main routines
// ********************************************************************************
// This is the list of built-in types
static _cmsTagTypeLinkedList SupportedTagTypes[] = {
{TYPE_HANDLER(cmsSigChromaticityType, Chromaticity), &SupportedTagTypes[1] },
{TYPE_HANDLER(cmsSigColorantOrderType, ColorantOrderType), &SupportedTagTypes[2] },
{TYPE_HANDLER(cmsSigS15Fixed16ArrayType, S15Fixed16), &SupportedTagTypes[3] },
{TYPE_HANDLER(cmsSigU16Fixed16ArrayType, U16Fixed16), &SupportedTagTypes[4] },
{TYPE_HANDLER(cmsSigTextType, Text), &SupportedTagTypes[5] },
{TYPE_HANDLER(cmsSigTextDescriptionType, Text_Description), &SupportedTagTypes[6] },
{TYPE_HANDLER(cmsSigCurveType, Curve), &SupportedTagTypes[7] },
{TYPE_HANDLER(cmsSigParametricCurveType, ParametricCurve), &SupportedTagTypes[8] },
{TYPE_HANDLER(cmsSigDateTimeType, DateTime), &SupportedTagTypes[9] },
{TYPE_HANDLER(cmsSigLut8Type, LUT8), &SupportedTagTypes[10] },
{TYPE_HANDLER(cmsSigLut16Type, LUT16), &SupportedTagTypes[11] },
{TYPE_HANDLER(cmsSigColorantTableType, ColorantTable), &SupportedTagTypes[12] },
{TYPE_HANDLER(cmsSigNamedColor2Type, NamedColor), &SupportedTagTypes[13] },
{TYPE_HANDLER(cmsSigMultiLocalizedUnicodeType, MLU), &SupportedTagTypes[14] },
{TYPE_HANDLER(cmsSigProfileSequenceDescType, ProfileSequenceDesc), &SupportedTagTypes[15] },
{TYPE_HANDLER(cmsSigSignatureType, Signature), &SupportedTagTypes[16] },
{TYPE_HANDLER(cmsSigMeasurementType, Measurement), &SupportedTagTypes[17] },
{TYPE_HANDLER(cmsSigDataType, Data), &SupportedTagTypes[18] },
{TYPE_HANDLER(cmsSigLutAtoBType, LUTA2B), &SupportedTagTypes[19] },
{TYPE_HANDLER(cmsSigLutBtoAType, LUTB2A), &SupportedTagTypes[20] },
{TYPE_HANDLER(cmsSigUcrBgType, UcrBg), &SupportedTagTypes[21] },
{TYPE_HANDLER(cmsSigCrdInfoType, CrdInfo), &SupportedTagTypes[22] },
{TYPE_HANDLER(cmsSigMultiProcessElementType, MPE), &SupportedTagTypes[23] },
{TYPE_HANDLER(cmsSigScreeningType, Screening), &SupportedTagTypes[24] },
{TYPE_HANDLER(cmsSigViewingConditionsType, ViewingConditions), &SupportedTagTypes[25] },
{TYPE_HANDLER(cmsSigXYZType, XYZ), &SupportedTagTypes[26] },
{TYPE_HANDLER(cmsCorbisBrokenXYZtype, XYZ), &SupportedTagTypes[27] },
{TYPE_HANDLER(cmsMonacoBrokenCurveType, Curve), &SupportedTagTypes[28] },
{TYPE_HANDLER(cmsSigProfileSequenceIdType, ProfileSequenceId), &SupportedTagTypes[29] },
{TYPE_HANDLER(cmsSigDictType, Dictionary), &SupportedTagTypes[30] },
{TYPE_HANDLER(cmsSigVcgtType, vcgt), NULL }
};
#define DEFAULT_TAG_TYPE_COUNT (sizeof(SupportedTagTypes) / sizeof(_cmsTagTypeLinkedList))
// Both kind of plug-ins share same structure
cmsBool _cmsRegisterTagTypePlugin(cmsContext id, cmsPluginBase* Data)
{
return RegisterTypesPlugin(id, Data, SupportedTagTypes, DEFAULT_TAG_TYPE_COUNT);
}
cmsBool _cmsRegisterMultiProcessElementPlugin(cmsContext id, cmsPluginBase* Data)
{
return RegisterTypesPlugin(id, Data, SupportedMPEtypes, DEFAULT_MPE_TYPE_COUNT);
}
// Wrapper for tag types
cmsTagTypeHandler* _cmsGetTagTypeHandler(cmsTagTypeSignature sig)
{
return GetHandler(sig, SupportedTagTypes);
}
// ********************************************************************************
// Tag support main routines
// ********************************************************************************
typedef struct _cmsTagLinkedList_st {
cmsTagSignature Signature;
cmsTagDescriptor Descriptor;
struct _cmsTagLinkedList_st* Next;
} _cmsTagLinkedList;
// This is the list of built-in tags
static _cmsTagLinkedList SupportedTags[] = {
{ cmsSigAToB0Tag, { 1, 3, { cmsSigLut16Type, cmsSigLutAtoBType, cmsSigLut8Type}, DecideLUTtypeA2B}, &SupportedTags[1]},
{ cmsSigAToB1Tag, { 1, 3, { cmsSigLut16Type, cmsSigLutAtoBType, cmsSigLut8Type}, DecideLUTtypeA2B}, &SupportedTags[2]},
{ cmsSigAToB2Tag, { 1, 3, { cmsSigLut16Type, cmsSigLutAtoBType, cmsSigLut8Type}, DecideLUTtypeA2B}, &SupportedTags[3]},
{ cmsSigBToA0Tag, { 1, 3, { cmsSigLut16Type, cmsSigLutBtoAType, cmsSigLut8Type}, DecideLUTtypeB2A}, &SupportedTags[4]},
{ cmsSigBToA1Tag, { 1, 3, { cmsSigLut16Type, cmsSigLutBtoAType, cmsSigLut8Type}, DecideLUTtypeB2A}, &SupportedTags[5]},
{ cmsSigBToA2Tag, { 1, 3, { cmsSigLut16Type, cmsSigLutBtoAType, cmsSigLut8Type}, DecideLUTtypeB2A}, &SupportedTags[6]},
// Allow corbis and its broken XYZ type
{ cmsSigRedColorantTag, { 1, 2, { cmsSigXYZType, cmsCorbisBrokenXYZtype }, DecideXYZtype}, &SupportedTags[7]},
{ cmsSigGreenColorantTag, { 1, 2, { cmsSigXYZType, cmsCorbisBrokenXYZtype }, DecideXYZtype}, &SupportedTags[8]},
{ cmsSigBlueColorantTag, { 1, 2, { cmsSigXYZType, cmsCorbisBrokenXYZtype }, DecideXYZtype}, &SupportedTags[9]},
{ cmsSigRedTRCTag, { 1, 3, { cmsSigCurveType, cmsSigParametricCurveType, cmsMonacoBrokenCurveType }, DecideCurveType}, &SupportedTags[10]},
{ cmsSigGreenTRCTag, { 1, 3, { cmsSigCurveType, cmsSigParametricCurveType, cmsMonacoBrokenCurveType }, DecideCurveType}, &SupportedTags[11]},
{ cmsSigBlueTRCTag, { 1, 3, { cmsSigCurveType, cmsSigParametricCurveType, cmsMonacoBrokenCurveType }, DecideCurveType}, &SupportedTags[12]},
{ cmsSigCalibrationDateTimeTag, { 1, 1, { cmsSigDateTimeType }, NULL}, &SupportedTags[13]},
{ cmsSigCharTargetTag, { 1, 1, { cmsSigTextType }, NULL}, &SupportedTags[14]},
{ cmsSigChromaticAdaptationTag, { 9, 1, { cmsSigS15Fixed16ArrayType }, NULL}, &SupportedTags[15]},
{ cmsSigChromaticityTag, { 1, 1, { cmsSigChromaticityType }, NULL}, &SupportedTags[16]},
{ cmsSigColorantOrderTag, { 1, 1, { cmsSigColorantOrderType }, NULL}, &SupportedTags[17]},
{ cmsSigColorantTableTag, { 1, 1, { cmsSigColorantTableType }, NULL}, &SupportedTags[18]},
{ cmsSigColorantTableOutTag, { 1, 1, { cmsSigColorantTableType }, NULL}, &SupportedTags[19]},
{ cmsSigCopyrightTag, { 1, 3, { cmsSigTextType, cmsSigMultiLocalizedUnicodeType, cmsSigTextDescriptionType}, DecideTextType}, &SupportedTags[20]},
{ cmsSigDateTimeTag, { 1, 1, { cmsSigDateTimeType }, NULL}, &SupportedTags[21]},
{ cmsSigDeviceMfgDescTag, { 1, 3, { cmsSigTextDescriptionType, cmsSigMultiLocalizedUnicodeType, cmsSigTextType}, DecideTextDescType}, &SupportedTags[22]},
{ cmsSigDeviceModelDescTag, { 1, 3, { cmsSigTextDescriptionType, cmsSigMultiLocalizedUnicodeType, cmsSigTextType}, DecideTextDescType}, &SupportedTags[23]},
{ cmsSigGamutTag, { 1, 3, { cmsSigLut16Type, cmsSigLutBtoAType, cmsSigLut8Type }, DecideLUTtypeB2A}, &SupportedTags[24]},
{ cmsSigGrayTRCTag, { 1, 2, { cmsSigCurveType, cmsSigParametricCurveType }, DecideCurveType}, &SupportedTags[25]},
{ cmsSigLuminanceTag, { 1, 1, { cmsSigXYZType }, NULL}, &SupportedTags[26]},
{ cmsSigMediaBlackPointTag, { 1, 2, { cmsSigXYZType, cmsCorbisBrokenXYZtype }, NULL}, &SupportedTags[27]},
{ cmsSigMediaWhitePointTag, { 1, 2, { cmsSigXYZType, cmsCorbisBrokenXYZtype }, NULL}, &SupportedTags[28]},
{ cmsSigNamedColor2Tag, { 1, 1, { cmsSigNamedColor2Type }, NULL}, &SupportedTags[29]},
{ cmsSigPreview0Tag, { 1, 3, { cmsSigLut16Type, cmsSigLutBtoAType, cmsSigLut8Type }, DecideLUTtypeB2A}, &SupportedTags[30]},
{ cmsSigPreview1Tag, { 1, 3, { cmsSigLut16Type, cmsSigLutBtoAType, cmsSigLut8Type }, DecideLUTtypeB2A}, &SupportedTags[31]},
{ cmsSigPreview2Tag, { 1, 3, { cmsSigLut16Type, cmsSigLutBtoAType, cmsSigLut8Type }, DecideLUTtypeB2A}, &SupportedTags[32]},
{ cmsSigProfileDescriptionTag, { 1, 3, { cmsSigTextDescriptionType, cmsSigMultiLocalizedUnicodeType, cmsSigTextType}, DecideTextDescType}, &SupportedTags[33]},
{ cmsSigProfileSequenceDescTag, { 1, 1, { cmsSigProfileSequenceDescType }, NULL}, &SupportedTags[34]},
{ cmsSigTechnologyTag, { 1, 1, { cmsSigSignatureType }, NULL}, &SupportedTags[35]},
{ cmsSigColorimetricIntentImageStateTag, { 1, 1, { cmsSigSignatureType }, NULL}, &SupportedTags[36]},
{ cmsSigPerceptualRenderingIntentGamutTag, { 1, 1, { cmsSigSignatureType }, NULL}, &SupportedTags[37]},
{ cmsSigSaturationRenderingIntentGamutTag, { 1, 1, { cmsSigSignatureType }, NULL}, &SupportedTags[38]},
{ cmsSigMeasurementTag, { 1, 1, { cmsSigMeasurementType }, NULL}, &SupportedTags[39]},
{ cmsSigPs2CRD0Tag, { 1, 1, { cmsSigDataType }, NULL}, &SupportedTags[40]},
{ cmsSigPs2CRD1Tag, { 1, 1, { cmsSigDataType }, NULL}, &SupportedTags[41]},
{ cmsSigPs2CRD2Tag, { 1, 1, { cmsSigDataType }, NULL}, &SupportedTags[42]},
{ cmsSigPs2CRD3Tag, { 1, 1, { cmsSigDataType }, NULL}, &SupportedTags[43]},
{ cmsSigPs2CSATag, { 1, 1, { cmsSigDataType }, NULL}, &SupportedTags[44]},
{ cmsSigPs2RenderingIntentTag, { 1, 1, { cmsSigDataType }, NULL}, &SupportedTags[45]},
{ cmsSigViewingCondDescTag, { 1, 3, { cmsSigTextDescriptionType, cmsSigMultiLocalizedUnicodeType, cmsSigTextType}, DecideTextDescType}, &SupportedTags[46]},
{ cmsSigUcrBgTag, { 1, 1, { cmsSigUcrBgType}, NULL}, &SupportedTags[47]},
{ cmsSigCrdInfoTag, { 1, 1, { cmsSigCrdInfoType}, NULL}, &SupportedTags[48]},
{ cmsSigDToB0Tag, { 1, 1, { cmsSigMultiProcessElementType}, NULL}, &SupportedTags[49]},
{ cmsSigDToB1Tag, { 1, 1, { cmsSigMultiProcessElementType}, NULL}, &SupportedTags[50]},
{ cmsSigDToB2Tag, { 1, 1, { cmsSigMultiProcessElementType}, NULL}, &SupportedTags[51]},
{ cmsSigDToB3Tag, { 1, 1, { cmsSigMultiProcessElementType}, NULL}, &SupportedTags[52]},
{ cmsSigBToD0Tag, { 1, 1, { cmsSigMultiProcessElementType}, NULL}, &SupportedTags[53]},
{ cmsSigBToD1Tag, { 1, 1, { cmsSigMultiProcessElementType}, NULL}, &SupportedTags[54]},
{ cmsSigBToD2Tag, { 1, 1, { cmsSigMultiProcessElementType}, NULL}, &SupportedTags[55]},
{ cmsSigBToD3Tag, { 1, 1, { cmsSigMultiProcessElementType}, NULL}, &SupportedTags[56]},
{ cmsSigScreeningDescTag, { 1, 1, { cmsSigTextDescriptionType }, NULL}, &SupportedTags[57]},
{ cmsSigViewingConditionsTag, { 1, 1, { cmsSigViewingConditionsType }, NULL}, &SupportedTags[58]},
{ cmsSigScreeningTag, { 1, 1, { cmsSigScreeningType}, NULL }, &SupportedTags[59]},
{ cmsSigVcgtTag, { 1, 1, { cmsSigVcgtType}, NULL }, &SupportedTags[60]},
{ cmsSigMetaTag, { 1, 1, { cmsSigDictType}, NULL }, &SupportedTags[61]},
{ cmsSigProfileSequenceIdTag, { 1, 1, { cmsSigProfileSequenceIdType}, NULL }, &SupportedTags[62]},
{ cmsSigProfileDescriptionMLTag,{ 1, 1, { cmsSigMultiLocalizedUnicodeType}, NULL}, NULL}
};
/*
Not supported Why
======================= =========================================
cmsSigOutputResponseTag ==> WARNING, POSSIBLE PATENT ON THIS SUBJECT!
cmsSigNamedColorTag ==> Deprecated
cmsSigDataTag ==> Ancient, unused
cmsSigDeviceSettingsTag ==> Deprecated, useless
*/
#define DEFAULT_TAG_COUNT (sizeof(SupportedTags) / sizeof(_cmsTagLinkedList))
cmsBool _cmsRegisterTagPlugin(cmsContext id, cmsPluginBase* Data)
{
cmsPluginTag* Plugin = (cmsPluginTag*) Data;
_cmsTagLinkedList *pt, *Anterior;
if (Data == NULL) {
SupportedTags[DEFAULT_TAG_COUNT-1].Next = NULL;
return TRUE;
}
pt = Anterior = SupportedTags;
while (pt != NULL) {
if (Plugin->Signature == pt -> Signature) {
pt ->Descriptor = Plugin ->Descriptor; // Replace old behaviour
return TRUE;
}
Anterior = pt;
pt = pt ->Next;
}
pt = (_cmsTagLinkedList*) _cmsPluginMalloc(id, sizeof(_cmsTagLinkedList));
if (pt == NULL) return FALSE;
pt ->Signature = Plugin ->Signature;
pt ->Descriptor = Plugin ->Descriptor;
pt ->Next = NULL;
if (Anterior != NULL) Anterior -> Next = pt;
return TRUE;
}
// Return a descriptor for a given tag or NULL
cmsTagDescriptor* _cmsGetTagDescriptor(cmsTagSignature sig)
{
_cmsTagLinkedList* pt;
for (pt = SupportedTags;
pt != NULL;
pt = pt ->Next) {
if (sig == pt -> Signature) return &pt ->Descriptor;
}
return NULL;
}
|
62 | ./emokit/examples/emokitd/emokitd.c | #include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include <errno.h>
#include <fcntl.h>
#include <unistd.h>
#include <syslog.h>
#include <signal.h>
#include <pthread.h>
#include <sys/resource.h>
#include <sys/types.h>
#include <sys/stat.h>
#include "emokit/emokit.h"
#include "emokitd.h"
sigset_t mask;
typedef struct emokit_device emokit_device;
void fatal_err(const char *msg) {
syslog(LOG_INFO, msg);
exit(1);
}
void init_fatal_err(const char *msg) {
printf("Fatal: %s\n", msg);
exit(1);
}
void *thr_signal_handler(void *arg) {
int sig;
for (;;) {
if (sigwait(&mask, &sig) != 0) {
fatal_err("sigwait failed.");
}
switch (sig) {
case SIGTERM:
syslog(LOG_INFO, "Caught SIGTERM. Exiting.");
remove(FIFO_PATH);
exit(0);
case SIGPIPE:
syslog(LOG_INFO, "Reader exited; blocking.");
break;
default:
syslog(LOG_INFO, "Caught unexpected signal: %d", sig);
}
}
}
int daemon_running() {
int fd;
char buf[16];
struct flock fl;
fd = open(PIDFILE, O_RDWR|O_CREAT, LOCKMODE);
if (fd < 0)
fatal_err("cannot open pidfile.");
fl.l_type = F_WRLCK;
fl.l_start = 0;
fl.l_whence = SEEK_SET;
fl.l_len = 0;
fl.l_pid = getpid();
if (fcntl(fd, F_SETLK, &fl) < 0) {
if (errno == EACCES || errno == EAGAIN) {
close(fd);
return 1;
}
fatal_err("cannot lock pidfile.");
}
ftruncate(fd, 0);
sprintf(buf, "%ld", (long) getpid());
write(fd, buf, strlen(buf)+1);
return 0;
}
void daemonize() {
int i, fd0, fd1, fd2;
pid_t pid;
struct rlimit rl;
struct sigaction sa;
umask(0);
if (getrlimit(RLIMIT_NOFILE, &rl) < 0)
init_fatal_err("Fatal: can't get file limit.");
if ((pid = fork()) < 0)
init_fatal_err("Fatal: can't fork.");
else if (pid != 0)
exit(0);
setsid();
sa.sa_handler = SIG_IGN;
sigemptyset(&sa.sa_mask);
sa.sa_flags = 0;
if (sigaction(SIGHUP, &sa, NULL) < 0)
init_fatal_err("Fatal: can't ignore SIGHUP.");
if ((pid = fork()) < 0)
init_fatal_err("Fatal: can't fork.\n");
else if (pid != 0)
exit(0);
/* switch working directory to / so we're not preventing
anything from unmounting */
if (chdir("/") < 0)
init_fatal_err("Fatal: can't chdir to /.");
if (rl.rlim_max == RLIM_INFINITY)
rl.rlim_max = 1024;
for (i=0; i < rl.rlim_max; ++i)
close(i);
/* so we can't spew into standard streams */
fd0 = open("/dev/null", O_RDWR);
fd1 = dup(fd0);
fd2 = dup(fd0);
openlog(DAEMON_IDENT, LOG_CONS, LOG_DAEMON);
syslog(LOG_INFO, "emokitd running; decrypted EEG data will be written to %s.", FIFO_PATH);
}
void dbg_stream(emokit_device *eeg) {
int i;
for (;;) {
if (emokit_read_data(eeg) > 0) {
emokit_get_next_frame(eeg);
for (i=0; i < 32; ++i) {
//printf("%d ", eeg->raw_frame[i]);
}
putchar('\n');
fflush(stdout);
}
}
}
void decrypt_loop(emokit_device *eeg) {
int i;
FILE *emokitd_fifo;
emokitd_fifo = fopen(FIFO_PATH, "wb");
if (!emokitd_fifo) {
fatal_err("cannot open FIFO for writing.");
}
for (;;) {
if (emokit_read_data(eeg) > 0) {
emokit_get_next_frame(eeg);
unsigned char raw_frame[32];
emokit_get_raw_frame(eeg, raw_frame);
fwrite(raw_frame, 1, EMOKIT_PKT_SIZE, emokitd_fifo);
}
}
}
int main(int argc, char **argv) {
int i;
unsigned char dev_type;
pthread_t tid;
struct sigaction sa;
emokit_device *eeg;
if (!DEBUG) {
daemonize();
if (daemon_running()) {
syslog(LOG_INFO, "Looks like emokitd is already running.\n");
exit(1);
}
}
eeg = emokit_create();
if (emokit_open(eeg, EMOKIT_VID, EMOKIT_PID, 0) != 0) {
fatal_err("cannot access device. Are you root?");
return 1;
}
if ((access(FIFO_PATH, W_OK) < 0) && mkfifo(FIFO_PATH, 0666) != 0) {
fatal_err("cannot create FIFO.");
}
sa.sa_handler = SIG_DFL;
sigemptyset(&sa.sa_mask);
if (sigaction(SIGHUP, &sa, NULL) < 0)
fatal_err("cannot restore SIGHUP.");
sigfillset(&mask);
if (pthread_sigmask(SIG_BLOCK, &mask, NULL) != 0)
fatal_err("SIG_BLOCK error.");
if (pthread_create(&tid, NULL, thr_signal_handler, 0) != 0)
fatal_err("cannot create thread.");
if (DEBUG)
printf("Entering decrypt loop...\n");
decrypt_loop(eeg);
return 0;
}
|
63 | ./emokit/examples/contact/contact.c | /*
Get real-time contact quality readings
*/
#include <stdio.h>
#include <string.h>
#include <signal.h>
#include "emokit/emokit.h"
int quit;
void cleanup(int i){
fprintf(stdout,"Shutting down\n");
quit=1;
}
int main(int argc, char **argv)
{
struct emokit_device* d;
signal(SIGINT, cleanup); //trap cntrl c
quit=0;
d = emokit_create();
int count=emokit_get_count(d, EMOKIT_VID, EMOKIT_PID);
printf("Current epoc devices connected: %d\n", count );
int r = emokit_open(d, EMOKIT_VID, EMOKIT_PID, 1);
if(r != 0)
{
emokit_close(d);
emokit_delete(d);
d = emokit_create();
r = emokit_open(d, EMOKIT_VID, EMOKIT_PID, 0);
if (r!=0) {
printf("CANNOT CONNECT: %d\n", r);
return 1;
}
}
printf("Connected to headset.\n");
if (emokit_read_data(d)<=0) {
printf("Error reading from headset\n");
emokit_close(d);
emokit_delete(d);
return 1;
}
struct emokit_frame c;
while (!quit) {
if(emokit_read_data(d) > 0) {
c = emokit_get_next_frame(d);
fprintf(stdout,"\033[H\033[2JPress CTRL+C to exit\n\nContact quality:\nF3 %4d\nFC6 %4d\nP7 %4d\nT8 %4d\nF7 %4d\nF8 %4d\nT7 %4d\nP8 %4d\nAF4 %4d\nF4 %4d\nAF3 %4d\nO2 %4d\nO1 %4d\nFC5 %4d",c.cq.F3, c.cq.FC6, c.cq.P7, c.cq.T8,c.cq.F7, c.cq.F8, c.cq.T7, c.cq.P8, c.cq.AF4, c.cq.F4, c.cq.AF3, c.cq.O2, c.cq.O1, c.cq.FC5);
fflush(stdout);
}
}
emokit_close(d);
emokit_delete(d);
return 0;
}
|
64 | ./emokit/src/emokit.c | /* Copyright (c) 2010, Daeken and Skadge
* Copyright (c) 2011-2012, OpenYou Organization (http://openyou.org)
*
* Permission to use, copy, modify, and/or distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include "emokit/emokit.h"
#include "hidapi/hidapi.h"
#include "mcrypt.h"
#define MAX_STR 255
#define EMOKIT_KEYSIZE 16 /* 128 bits == 16 bytes */
#define EMOKIT_CONSUMER 0
#define EMOKIT_RESEARCH 1
/* ID of the feature report we need to identify the device
as consumer/research */
#define EMOKIT_REPORT_ID 0
#define EMOKIT_REPORT_SIZE 9
const unsigned char F3_MASK[14] = {10, 11, 12, 13, 14, 15, 0, 1, 2, 3, 4, 5, 6, 7};
const unsigned char FC6_MASK[14] = {214, 215, 200, 201, 202, 203, 204, 205, 206, 207, 192, 193, 194, 195};
const unsigned char P7_MASK[14] = {84, 85, 86, 87, 72, 73, 74, 75, 76, 77, 78, 79, 64, 65};
const unsigned char T8_MASK[14] = {160, 161, 162, 163, 164, 165, 166, 167, 152, 153, 154, 155, 156, 157};
const unsigned char F7_MASK[14] = {48, 49, 50, 51, 52, 53, 54, 55, 40, 41, 42, 43, 44, 45};
const unsigned char F8_MASK[14] = {178, 179, 180, 181, 182, 183, 168, 169, 170, 171, 172, 173, 174, 175};
const unsigned char T7_MASK[14] = {66, 67, 68, 69, 70, 71, 56, 57, 58, 59, 60, 61, 62, 63};
const unsigned char P8_MASK[14] = {158, 159, 144, 145, 146, 147, 148, 149, 150, 151, 136, 137, 138, 139};
const unsigned char AF4_MASK[14] = {196, 197, 198, 199, 184, 185, 186, 187, 188, 189, 190, 191, 176, 177};
const unsigned char F4_MASK[14] = {216, 217, 218, 219, 220, 221, 222, 223, 208, 209, 210, 211, 212, 213};
const unsigned char AF3_MASK[14] = {46, 47, 32, 33, 34, 35, 36, 37, 38, 39, 24, 25, 26, 27};
const unsigned char O2_MASK[14] = {140, 141, 142, 143, 128, 129, 130, 131, 132, 133, 134, 135, 120, 121};
const unsigned char O1_MASK[14] = {102, 103, 88, 89, 90, 91, 92, 93, 94, 95, 80, 81, 82, 83};
const unsigned char FC5_MASK[14] = {28, 29, 30, 31, 16, 17, 18, 19, 20, 21, 22, 23, 8, 9};
const unsigned char QUALITY_MASK[14]={99,100,101,102,103,104,105,106,107,108,109,110,111,112};
struct emokit_device {
hid_device* _dev;
wchar_t serial[MAX_STR]; // USB Dongle serial number
int _is_open; // Is device currently open
int _is_inited; // Is device current initialized
MCRYPT td; // mcrypt context
unsigned char key[EMOKIT_KEYSIZE]; // crypt key for device
unsigned char *block_buffer; // temporary storage for decrypt
int blocksize; // Size of current block
struct emokit_frame current_frame; // Last information received from headset
unsigned char raw_frame[32]; // Raw encrypted data received from headset
unsigned char raw_unenc_frame[32]; // Raw unencrypted data received from headset
unsigned char last_battery; //last reported battery value, in percentage of full
struct emokit_contact_quality last_quality; //last reported contact quality
};
struct emokit_device* emokit_create()
{
struct emokit_device* s = (struct emokit_device*)malloc(sizeof(struct emokit_device));
memset(s,0,sizeof(struct emokit_device));
s->_is_open = 0;
s->_is_inited = 0;
hid_init();
s->_is_inited = 1;
return s;
}
int emokit_get_count(struct emokit_device* s, int device_vid, int device_pid)
{
int count = 0;
struct hid_device_info* devices;
struct hid_device_info* device_cur;
if (!s->_is_inited)
{
return E_EMOKIT_NOT_INITED;
}
devices = hid_enumerate(device_vid, device_pid);
device_cur = devices;
while(device_cur) {
++count;
device_cur = device_cur->next;
}
hid_free_enumeration(devices);
return count;
}
int emokit_identify_device(hid_device *dev) {
/* currently we check to see if the feature report matches the consumer
model and if not we assume it's a research model.*/
int nbytes, i, dev_type = EMOKIT_CONSUMER;
unsigned char buf[EMOKIT_REPORT_SIZE];
char report_consumer[] = {0x00, 0xa0, 0xff, 0x1f, 0xff, 0x00, 0x00, 0x00, 0x00};
buf[0] = EMOKIT_REPORT_ID;
nbytes = hid_get_feature_report(dev, buf, sizeof(buf));
if (nbytes != EMOKIT_REPORT_SIZE)
{
return -1;
}
for (i=0; i < nbytes; ++i) {
if (buf[i] != report_consumer[i]) {
dev_type = EMOKIT_RESEARCH;
break;
}
}
return dev_type;
}
EMOKIT_DECLSPEC int emokit_init_crypto(struct emokit_device* s, int dev_type) {
emokit_get_crypto_key(s, dev_type);
//libmcrypt initialization
s->td = mcrypt_module_open(MCRYPT_RIJNDAEL_128, NULL, MCRYPT_ECB, NULL);
s->blocksize = mcrypt_enc_get_block_size(s->td); //should return a 16bits blocksize
s->block_buffer = (unsigned char *)malloc(s->blocksize);
mcrypt_generic_init(s->td, s->key, EMOKIT_KEYSIZE, NULL);
return 0;
}
int emokit_open(struct emokit_device* s, int device_vid, int device_pid, unsigned int device_index)
{
int dev_type;
int count = 0;
struct hid_device_info* devices;
struct hid_device_info* device_cur;
if (!s->_is_inited)
{
return E_EMOKIT_NOT_INITED;
}
devices = hid_enumerate(device_vid, device_pid);
device_cur = devices;
while(device_cur) {
if(count == device_index) {
s->_dev = hid_open_path(device_cur->path);
break;
}
++count;
device_cur = device_cur->next;
}
hid_free_enumeration(devices);
if(!s->_dev) {
return E_EMOKIT_NOT_OPENED;
}
s->_is_open = 1;
dev_type = emokit_identify_device(s->_dev);
hid_get_serial_number_string(s->_dev, s->serial, MAX_STR);
emokit_init_crypto(s, dev_type);
return 0;
}
int emokit_close(struct emokit_device* s)
{
if(!s->_is_open)
{
return E_EMOKIT_NOT_OPENED;
}
hid_close(s->_dev);
s->_is_open = 0;
return 0;
}
int emokit_read_data(struct emokit_device* s)
{
return hid_read(s->_dev, s->raw_frame, 32);
}
EMOKIT_DECLSPEC
void emokit_get_crypto_key(struct emokit_device* s, int dev_type) {
unsigned char type = (unsigned char) dev_type;
int i;
unsigned int l = 16;
type &= 0xF;
type = (type == 0);
s->key[0] = (uint8_t)s->serial[l-1];
s->key[1] = '\0';
s->key[2] = (uint8_t)s->serial[l-2];
if(type) {
s->key[3] = 'H';
s->key[4] = (uint8_t)s->serial[l-1];
s->key[5] = '\0';
s->key[6] = (uint8_t)s->serial[l-2];
s->key[7] = 'T';
s->key[8] = (uint8_t)s->serial[l-3];
s->key[9] = '\x10';
s->key[10] = (uint8_t)s->serial[l-4];
s->key[11] = 'B';
}
else {
s->key[3] = 'T';
s->key[4] = (uint8_t)s->serial[l-3];
s->key[5] = '\x10';
s->key[6] = (uint8_t)s->serial[l-4];
s->key[7] = 'B';
s->key[8] = (uint8_t)s->serial[l-1];
s->key[9] = '\0';
s->key[10] = (uint8_t)s->serial[l-2];
s->key[11] = 'H';
}
s->key[12] = (uint8_t)s->serial[l-3];
s->key[13] = '\0';
s->key[14] = (uint8_t)s->serial[l-4];
s->key[15] = 'P';
}
void emokit_deinit(struct emokit_device* s) {
mcrypt_generic_deinit (s->td);
mcrypt_module_close(s->td);
}
int get_level(unsigned char frame[32], const unsigned char bits[14]) {
signed char i;
char b,o;
int level = 0;
for (i = 13; i >= 0; --i) {
level <<= 1;
b = (bits[i] >> 3) + 1;
o = bits[i] % 8;
level |= (frame[b] >> o) & 1;
}
return level;
}
EMOKIT_DECLSPEC int emokit_get_next_raw(struct emokit_device* s) {
//Two blocks of 16 bytes must be read.
if (memcpy (s->block_buffer, s->raw_frame, s->blocksize)) {
mdecrypt_generic (s->td, s->block_buffer, s->blocksize);
memcpy(s->raw_unenc_frame, s->block_buffer, s->blocksize);
}
else {
return -1;
}
if (memcpy(s->block_buffer, s->raw_frame + s->blocksize, s->blocksize)) {
mdecrypt_generic (s->td, s->block_buffer, s->blocksize);
memcpy(s->raw_unenc_frame + s->blocksize, s->block_buffer, s->blocksize);
}
else {
return -1;
}
return 0;
}
//returns the percentage battery value given the unencrypted report value
EMOKIT_DECLSPEC unsigned char battery_value(unsigned char in) {
if (in>=248) return 100;
else {
switch(in) {
case 247:return 99; break;
case 246:return 97; break;
case 245:return 93; break;
case 244:return 89; break;
case 243:return 85; break;
case 242:return 82; break;
case 241:return 77; break;
case 240:return 72; break;
case 239:return 66; break;
case 238:return 62; break;
case 237:return 55; break;
case 236:return 46; break;
case 235:return 32; break;
case 234:return 20; break;
case 233:return 12; break;
case 232:return 6; break;
case 231:return 4 ; break;
case 230:return 3; break;
case 229:return 2; break;
case 228:
case 227:
case 226:
return 1;
break;
default:
return 0;
}
}
}
//decode and update the s->last_quality, return s->last_quality
EMOKIT_DECLSPEC struct emokit_contact_quality handle_quality(struct emokit_device* s) {
int current_contact_quality=get_level(s->raw_unenc_frame,QUALITY_MASK);
switch(s->raw_unenc_frame[0]) {
case 0:
s->last_quality.F3=current_contact_quality;
break;
case 1:
s->last_quality.FC5=current_contact_quality;
break;
case 2:
s->last_quality.AF3=current_contact_quality;
break;
case 3:
s->last_quality.F7=current_contact_quality;
break;
case 4:
s->last_quality.T7=current_contact_quality;
break;
case 5:
s->last_quality.P7=current_contact_quality;
break;
case 6:
s->last_quality.O1=current_contact_quality;
break;
case 7:
s->last_quality.O2=current_contact_quality;
break;
case 8:
s->last_quality.P8=current_contact_quality;
break;
case 9:
s->last_quality.T8=current_contact_quality;
break;
case 10:
s->last_quality.F8=current_contact_quality;
break;
case 11:
s->last_quality.AF4=current_contact_quality;
break;
case 12:
s->last_quality.FC6=current_contact_quality;
break;
case 13:
s->last_quality.F4=current_contact_quality;
break;
case 14:
s->last_quality.F8=current_contact_quality;
break;
case 15:
s->last_quality.AF4=current_contact_quality;
break;
case 64:
s->last_quality.F3=current_contact_quality;
break;
case 65:
s->last_quality.FC5=current_contact_quality;
break;
case 66:
s->last_quality.AF3=current_contact_quality;
break;
case 67:
s->last_quality.F7=current_contact_quality;
break;
case 68:
s->last_quality.T7=current_contact_quality;
break;
case 69:
s->last_quality.P7=current_contact_quality;
break;
case 70:
s->last_quality.O1=current_contact_quality;
break;
case 71:
s->last_quality.O2=current_contact_quality;
break;
case 72:
s->last_quality.P8=current_contact_quality;
break;
case 73:
s->last_quality.T8=current_contact_quality;
break;
case 74:
s->last_quality.F8=current_contact_quality;
break;
case 75:
s->last_quality.AF4=current_contact_quality;
break;
case 76:
s->last_quality.FC6=current_contact_quality;
break;
case 77:
s->last_quality.F4=current_contact_quality;
break;
case 78:
s->last_quality.F8=current_contact_quality;
break;
case 79:
s->last_quality.AF4=current_contact_quality;
break;
case 80:
s->last_quality.FC6=current_contact_quality;
break;
default:
break;
}
return (s->last_quality);
}
EMOKIT_DECLSPEC
struct emokit_frame emokit_get_next_frame(struct emokit_device* s) {
struct emokit_frame k;
memset(s->raw_unenc_frame, 0, 32);
if (emokit_get_next_raw(s)<0) {
k.counter=0;
return k;
}
memset(&k.cq,0,sizeof(struct emokit_contact_quality));
if (s->raw_unenc_frame[0] & 128) {
k.counter = 128;
k.battery = battery_value( s->raw_unenc_frame[0] );
s->last_battery=k.battery;
} else {
k.counter = s->raw_unenc_frame[0];
k.battery = s->last_battery;
}
k.F3 = get_level(s->raw_unenc_frame, F3_MASK);
k.FC6 = get_level(s->raw_unenc_frame, FC6_MASK);
k.P7 = get_level(s->raw_unenc_frame, P7_MASK);
k.T8 = get_level(s->raw_unenc_frame, T8_MASK);
k.F7 = get_level(s->raw_unenc_frame, F7_MASK);
k.F8 = get_level(s->raw_unenc_frame, F8_MASK);
k.T7 = get_level(s->raw_unenc_frame, T7_MASK);
k.P8 = get_level(s->raw_unenc_frame, P8_MASK);
k.AF4 = get_level(s->raw_unenc_frame, AF4_MASK);
k.F4 = get_level(s->raw_unenc_frame, F4_MASK);
k.AF3 = get_level(s->raw_unenc_frame, AF3_MASK);
k.O2 = get_level(s->raw_unenc_frame, O2_MASK);
k.O1 = get_level(s->raw_unenc_frame, O1_MASK);
k.FC5 = get_level(s->raw_unenc_frame, FC5_MASK);
k.gyroX = s->raw_unenc_frame[29] - 102;
k.gyroY = s->raw_unenc_frame[30] - 104;
k.cq=handle_quality(s);
return k;
}
EMOKIT_DECLSPEC void emokit_delete(struct emokit_device* dev)
{
emokit_deinit(dev);
free(dev);
}
EMOKIT_DECLSPEC void emokit_get_raw_frame(struct emokit_device* dev, unsigned char buf[32]) {
memcpy(buf, dev->raw_unenc_frame, 32);
}
|
65 | ./libzt/tests/tree_test.c | /*
* Copyright (C) 2001, 2004, 2005, Jason L. Shiffer <jshiffer@zerotao.org>. All Rights Reserved.
*
*
* $Id: tree_test.c,v 1.1 2002/11/10 23:36:59 jshiffer Exp $
*
*/
/*
* Description: tree tests
*/
#include <string.h>
#define ZT_WITH_UNIT
#include <zt.h>
#define REMOVED 8
#define REMOVED2 6
#define MAX_OD 10
int ordered_dataset[MAX_OD];
struct int_set {
zt_rbt_node node;
int i;
};
int int_compare( zt_rbt_node *x, zt_rbt_node *x2)
{
struct int_set * n1 = zt_rbt_data(x, struct int_set, node);
struct int_set * n2 = zt_rbt_data(x2, struct int_set, node);
if (n1->i < n2->i) {
return -1;
} else if (n1->i == n2->i) {
return 0;
} else {
return 1;
}
}
#define zt_rbt_node_init(x) do { \
zt_rbt_right(x) = NULL; \
zt_rbt_left(x) = NULL; \
zt_rbt_parent(x) = NULL; \
} while (0)
static void
basic_tests(struct zt_unit_test *test, void *data UNUSED)
{
zt_rbt * br_root = NULL;
zt_rbt_node * iter;
zt_rbt_node * next;
struct int_set * node;
struct int_set rem1;
int i;
/* key(), key_size, data_size, compare_func (ala qsort) */
/* br_root = tree_blackred( NULL, sizeof(int), 0, int_compare ); */
/* insert the information randomly */
for (i = 0; i < MAX_OD; i++) {
long n = 0;
int done = 0;
node = zt_calloc(struct int_set, 1);
zt_rbt_node_init(&(node->node));
/* make sure that we only insert an individual data
* item only once.
*/
do {
n = random() % MAX_OD;
if (ordered_dataset[n] == 0) {
ordered_dataset[n] = 1;
done = 1;
}
} while (!done);
node->i = (int)n;
zt_rbt_insert(&br_root, &(node->node), int_compare);
}
for (i = 0; i < MAX_OD; i++) {
ZT_UNIT_ASSERT(test, ordered_dataset[i] == 1);
}
rem1.i = REMOVED;
iter = zt_rbt_find(&br_root, &rem1.node, int_compare);
if (iter) {
struct int_set *n = zt_rbt_data(iter, struct int_set, node);
/* struct int_set *n2; */
zt_rbt_remove(&br_root, iter);
ZT_UNIT_ASSERT(test, n->i == REMOVED);
memset(n, 0, sizeof(struct int_set));
zt_free(n);
}
rem1.i = REMOVED2;
iter = zt_rbt_find(&br_root, &rem1.node, int_compare);
if (iter) {
struct int_set *n = zt_rbt_data(iter, struct int_set, node);
/* struct int_set *n2; */
iter = zt_rbt_remove(&br_root, iter);
ZT_UNIT_ASSERT(test, n->i == REMOVED2);
iter = zt_rbt_insert(&br_root, iter, int_compare);
ZT_UNIT_ASSERT(test, iter == NULL);
}
/* now iterate over each item in order clearing them as we go. */
zt_rbt_for_each_safe(&br_root, iter, next) {
struct int_set * x = zt_rbt_data(iter, struct int_set, node);
ordered_dataset[x->i] = 0;
zt_rbt_remove(&br_root, iter);
zt_free(x);
}
for (i = 0; i < MAX_OD; i++) {
ZT_UNIT_ASSERT(test, ordered_dataset[i] == 0 || i == REMOVED);
}
} /* basic_tests */
int
register_tree_suite(struct zt_unit *unit)
{
struct zt_unit_suite * suite;
suite = zt_unit_register_suite(unit, "tree tests", NULL, NULL, NULL);
zt_unit_register_test(suite, "basic", basic_tests);
return 0;
}
|
66 | ./libzt/tests/assert_test.c | /*
* assert_test.c test assertions
*
* Copyright (C) 2000-2002, 2004, 2005, Jason L. Shiffer <jshiffer@zerotao.com>. All Rights Reserved.
* See file COPYING for details.
*
* $Id: assert_test.c,v 1.2 2003/06/09 13:42:12 jshiffer Exp $
*
*/
/*
* Description:
*/
#undef NDEBUG
#define ZT_WITH_UNIT
#include <zt.h>
#define DUMMY_LOG "dummy.log"
int rr_val = 0;
void
test_return(int x) {
zt_assert_return(1==x);
rr_val = 1;
}
int
test_returnv(int x) {
zt_assert_returnV(1==x, 1);
return 2;
}
static void
basic_tests(struct zt_unit_test *test UNUSED, void *data UNUSED)
{
/* get rid of the log message for the moment */
zt_log_ty * olog;
zt_log_ty * log;
int i = 1;
int ri_val = 0;
log = zt_log_file(DUMMY_LOG, 0, 0);
olog = zt_log_logger(log);
zt_assert(1 == i);
rr_val = 0;
test_return(0);
ZT_UNIT_ASSERT(test, rr_val == 0);
rr_val = 0;
test_return(1);
ZT_UNIT_ASSERT(test, rr_val == 1);
ri_val = test_returnv(0);
ZT_UNIT_ASSERT(test, ri_val == 1);
ri_val = test_returnv(1);
ZT_UNIT_ASSERT(test, ri_val == 2);
zt_log_logger(olog);
zt_log_close(log);
#if !defined(WIN32)
unlink(DUMMY_LOG);
#endif
}
int
register_assert_suite(struct zt_unit *unit)
{
struct zt_unit_suite * suite;
suite = zt_unit_register_suite(unit, "assert tests", NULL, NULL, NULL);
zt_unit_register_test(suite, "basic", basic_tests);
return 0;
}
|
67 | ./libzt/tests/unit_test.c | #include <stdio.h>
#define ZT_WITH_UNIT
#include <zt.h>
void
test_fn_1(struct zt_unit_test *test, void *data UNUSED)
{
ZT_UNIT_ASSERT(test, 1 != 2);
}
void
test_fn_2(struct zt_unit_test *test UNUSED, void *data UNUSED)
{
/* char * abc = "123"; */
/* ZT_UNIT_ASSERT_RAISES(test, abc, TRY_THROW(abc)); */
/* ZT_UNIT_ASSERT_RAISES(test, abc, TRY_THROW(abc)); */
return;
}
extern int register_assert_suite(struct zt_unit *unit);
extern int register_array_suite(struct zt_unit *unit);
extern int register_table_suite(struct zt_unit *unit);
extern int register_adt_suite(struct zt_unit *unit);
extern int register_bstream_suite(struct zt_unit *unit);
extern int register_bytearray_suite(struct zt_unit *unit);
extern int register_cfg_suite(struct zt_unit *unit);
extern int register_cstr_suite(struct zt_unit *unit);
extern int register_format_suite(struct zt_unit *unit);
extern int register_gc_suite(struct zt_unit *unit);
extern int register_int_suite(struct zt_unit *unit);
extern int register_list_suite(struct zt_unit *unit);
extern int register_llist_suite(struct zt_unit *unit);
extern int register_log_suite(struct zt_unit *unit);
extern int register_macros_suite(struct zt_unit *unit);
extern int register_msg_queue_suite(struct zt_unit *unit);
extern int register_opts_suite(struct zt_unit *unit);
extern int register_progname_suite(struct zt_unit *unit);
extern int register_set_suite(struct zt_unit *unit);
extern int register_stack_suite(struct zt_unit *unit);
extern int register_time_suite(struct zt_unit *unit);
extern int register_tree_suite(struct zt_unit *unit);
extern int register_sha1_suite(struct zt_unit *unit);
extern int register_uuid_suite(struct zt_unit *unit);
extern int register_ipv4_tbl_suite(struct zt_unit *unit);
extern int register_include_suite(struct zt_unit *unit);
extern int register_daemon_suite(struct zt_unit *unit);
extern int register_path_suite(struct zt_unit *unit);
extern int register_base_suite(struct zt_unit *unit);
extern int register_buf_suite(struct zt_unit *unit);
int
main(int argc, char *argv[])
{
struct zt_unit * unit;
struct zt_unit_suite * suite1;
int result = 0;
unit = zt_unit_init();
suite1 = zt_unit_register_suite(unit, "unit test suite", NULL, NULL, NULL);
zt_unit_register_test(suite1, "unit test 1", test_fn_1);
zt_unit_register_test(suite1, "unit test 2", test_fn_2);
/* register actual tests */
register_cfg_suite(unit);
register_assert_suite(unit);
register_array_suite(unit);
register_table_suite(unit);
register_bstream_suite(unit);
register_cstr_suite(unit);
register_format_suite(unit);
register_gc_suite(unit);
register_int_suite(unit);
register_list_suite(unit);
register_llist_suite(unit);
register_log_suite(unit);
register_macros_suite(unit);
register_opts_suite(unit);
register_progname_suite(unit);
register_set_suite(unit);
register_stack_suite(unit);
register_time_suite(unit);
register_tree_suite(unit);
register_sha1_suite(unit);
register_uuid_suite(unit);
register_include_suite(unit);
/* register_ipv4_tbl_suite(unit); */
register_daemon_suite(unit);
register_path_suite(unit);
register_base_suite(unit);
register_buf_suite(unit);
/*
* register_adt_suite(unit);
* register_bytearray_suite(unit);
* register_msg_queue_suite(unit);
*/
result = zt_unit_main(unit, argc, argv);
zt_unit_release(&unit);
return result;
} /* main */
|
68 | ./libzt/tests/table_test.c | /*
* Copyright (C) 2000-2005, Jason L. Shiffer <jshiffer@zerotao.com>. All Rights Reserved.
* See file COPYING for details.
*
* $Id$
*
*/
/*
* Description:
*/
#include <string.h>
#include <stdio.h>
#define ZT_WITH_UNIT
#include <zt.h>
#define STR_TEST_PRE "strings "
static int count = 0;
static int str_iterator(void *key, size_t key_len, void *datum, size_t datum_len, void *param);
static int int_iterator(void *key, size_t key_len, void *datum, size_t datum_len, void *param);
static int str_free(void *key, size_t key_len, void *datum, size_t datum_len, void *param);
void
basic_tests(struct zt_unit_test *test, void *data UNUSED)
{
char buf[1024];
ssize_t i;
ssize_t nn = 0;
ssize_t numbers[10] = { 9, 8, 7, 6, 5, 4, 3, 2, 1, 0 };
zt_table * table_int = NULL;
zt_table * table_str = NULL;
table_int = zt_table_init("test int table", zt_table_hash_int, zt_table_compare_int, 10, 0, NULL);
table_str = zt_table_init("test string table", zt_table_hash_string,
zt_table_compare_string, 10, 0, NULL);
for ( i = 9; i >= 0; i--) {
zt_table_set(table_int, (void *)i, sizeof(ssize_t), (void *)numbers[i], sizeof(ssize_t));
}
zt_table_for_each(table_int, int_iterator, test);
ZT_UNIT_ASSERT(test, count == 10);
nn = (ssize_t)zt_table_get( table_int, (void *)5, sizeof(ssize_t));
ZT_UNIT_ASSERT(test, nn == 4);
/* string test */
/* printf("Testing strings\n"); */
count = 0; /* GLOBAL */
for ( i = 9; i >= 0; i--) {
char * b2 = NULL;
sprintf(buf, "%s%ld", STR_TEST_PRE, i);
b2 = zt_strdup(buf);
zt_table_set(table_str, b2, strlen(b2), (void *)numbers[i], sizeof(ssize_t));
}
zt_table_for_each(table_str, str_iterator, test);
ZT_UNIT_ASSERT(test, count == 10);
zt_table_for_each(table_str, str_free, NULL);
zt_table_destroy(table_int);
zt_table_destroy(table_str);
} /* basic_tests */
static int
str_free(void *key, size_t key_len, void *datum UNUSED, size_t datum_len, void *param UNUSED)
{
zt_free(key);
return 0;
}
static int
str_iterator(void *key, size_t key_len, void *datum, size_t datum_len, void *param)
{
ssize_t d = (intptr_t)datum;
ssize_t k = atoi(((const char *)key + strlen(STR_TEST_PRE)));
struct zt_unit_test * test = (struct zt_unit_test *)param;
ZT_UNIT_ASSERT(test, (k + d == 9));
count++; /* GLOBAL */
return 0;
}
static int
int_iterator(void *key, size_t key_len, void *datum, size_t datum_len, void *param)
{
ssize_t d = (intptr_t)datum;
ssize_t k = (intptr_t)key;
struct zt_unit_test * test = (struct zt_unit_test *)param;
ZT_UNIT_ASSERT(test, (k + d == 9));
count++; /* GLOBAL */
return 0;
}
int
register_table_suite(struct zt_unit *unit)
{
struct zt_unit_suite * suite;
suite = zt_unit_register_suite(unit, "table tests", NULL, NULL, NULL);
zt_unit_register_test(suite, "basic", basic_tests);
return 0;
}
|
69 | ./libzt/tests/daemon_test.c | /*
* daemon_test.c test daemon
*
* Copyright (C) 2008, Jason L. Shiffer <jshiffer@zerotao.org>. All Rights Reserved.
* See file COPYING for details.
*
*/
/*
* Description:
*/
#ifdef HAVE_CONFIG_H
# include "zt_config.h"
#endif /* HAVE_CONFIG_H */
#ifdef HAVE_STRING_H
# include <string.h>
#endif /* HAVE_STRING_H */
#define ZT_WITH_UNIT
#include <zt.h>
#include <sys/stat.h>
static void
makepid_tests(struct zt_unit_test *test, void* data UNUSED)
{
#ifndef WIN32
const char* pidF = "/tmp/zt_unit_makepid.pid";
int v = zt_writepid(pidF);
ZT_UNIT_ASSERT(test, v == 0);
const size_t kSz = 256;
char buf[kSz];
FILE* fh = fopen(pidF, "r");
ZT_UNIT_ASSERT(test, fh != NULL);
size_t nRead = fread(buf, 1, kSz, fh);
ZT_UNIT_ASSERT(test, nRead > 0 && nRead < kSz);
ZT_UNIT_ASSERT(test, fclose(fh) == 0);
// check that current pid was written and that permissions are current
// (NOTE: Not win32 compliant, but neither is the makepid code)
pid_t pid = getpid();
long tst = strtol(buf, NULL, 10);
ZT_UNIT_ASSERT(test, tst == pid);
// check permissions
struct stat s;
memset(&s, 0, sizeof(s));
ZT_UNIT_ASSERT(test, stat(pidF, &s) == 0);
mode_t tMode = S_IRUSR | S_IWUSR | S_IRGRP | S_IROTH;
ZT_UNIT_ASSERT(test, (s.st_mode & ~S_IFMT) == tMode);
#endif /* WIN32 */
}
int
register_daemon_suite(struct zt_unit *unit)
{
struct zt_unit_suite * suite;
suite = zt_unit_register_suite(unit, "daemon tests", NULL, NULL, NULL);
zt_unit_register_test(suite, "zt_makepid", makepid_tests);
return 0;
}
|
70 | ./libzt/tests/stack_test.c | #define ZT_WITH_UNIT
#include <zt.h>
typedef struct stack_elt {
zt_stack_t member;
int n;
}stack_elt;
typedef struct queue_elt {
zt_queue_t member;
int n;
}queue_elt;
static int values[] = { 0, 1, 2, 3, 4, 5, 6, 7, 8, 9 };
#define VALUES_MAX (int)sizeof_array(values)
static void
basic_tests(struct zt_unit_test *test, void *data UNUSED)
{
stack_elt * se;
queue_elt * qe;
zt_stack_t * tse;
zt_queue_t * tqe;
int i;
zt_stack(stk);
zt_queue(que);
ZT_UNIT_ASSERT(test, stk.prev == &stk);
ZT_UNIT_ASSERT(test, stk.next == &stk);
ZT_UNIT_ASSERT(test, zt_stack_empty(&stk));
ZT_UNIT_ASSERT(test, zt_queue_empty(&que));
for (i = 0; i < VALUES_MAX; i++) {
se = zt_calloc(stack_elt, 1);
qe = zt_calloc(queue_elt, 1);
se->n = values[(VALUES_MAX-1) - i];
qe->n = values[i];
zt_stack_push(&stk, &se->member);
zt_queue_enqueue(&que, &qe->member);
}
tse = zt_stack_peek(&stk);
tqe = zt_queue_peek(&que);
se = zt_stack_data(tse, stack_elt, member);
qe = zt_queue_data(tqe, queue_elt, member);
ZT_UNIT_ASSERT(test, se->n == values[0]);
ZT_UNIT_ASSERT(test, qe->n == values[0]);
for (i = 0; i < VALUES_MAX; i++) {
tse = zt_stack_pop(&stk);
tqe = zt_queue_dequeue(&que);
se = zt_stack_data(tse, stack_elt, member);
qe = zt_queue_data(tqe, queue_elt, member);
ZT_UNIT_ASSERT(test, se->n == values[i]);
ZT_UNIT_ASSERT(test, qe->n == values[i]);
zt_free(se);
zt_free(qe);
}
ZT_UNIT_ASSERT(test, zt_stack_empty(&stk));
ZT_UNIT_ASSERT(test, zt_queue_empty(&que));
} /* basic_tests */
int
register_stack_suite(struct zt_unit *unit)
{
struct zt_unit_suite * suite;
suite = zt_unit_register_suite(unit, "stack tests", NULL, NULL, NULL);
zt_unit_register_test(suite, "basic", basic_tests);
return 0;
}
|
71 | ./libzt/tests/buf_test.c | #include <string.h>
#define ZT_WITH_UNIT
#include <zt.h>
static void
basic_tests(struct zt_unit_test * test, void * data UNUSED) {
zt_buf_t * buf;
buf = zt_buf_new();
ZT_UNIT_ASSERT_NOT_EQUAL(test, buf, NULL);
ZT_UNIT_ASSERT_EQUAL(test, zt_buf_length(buf), 0);
zt_buf_add(buf, "abcd", 4);
ZT_UNIT_ASSERT_EQUAL(test, zt_buf_length(buf), 4);
zt_buf_add(buf, "efgh", 4);
ZT_UNIT_ASSERT_EQUAL(test, zt_buf_length(buf), 8);
zt_buf_free(buf);
}
static void
iov_tests(struct zt_unit_test * test, void * data UNUSED) {
zt_buf_t * buf;
zt_iov_t iov[4];
char * out;
buf = zt_buf_new();
iov[0].iov_len = 3;
iov[0].iov_data = "foo";
iov[1].iov_len = 3;
iov[1].iov_data = "bar";
iov[2].iov_len = 3;
iov[2].iov_data = "baz";
iov[3].iov_len = 1;
iov[3].iov_data = "\0";
ZT_UNIT_ASSERT_EQUAL(test, zt_buf_iov_add(buf, iov, 4), 0);
ZT_UNIT_ASSERT_EQUAL(test, zt_buf_length(buf), 10);
out = (char *)zt_buf_get(buf);
ZT_UNIT_ASSERT_NOT_EQUAL(test, out, NULL);
ZT_UNIT_ASSERT(test, strcmp("foobarbaz", out) == 0);
zt_buf_free(buf);
}
static void
drain_tests(struct zt_unit_test * test, void * data UNUSED) {
zt_buf_t * buf;
buf = zt_buf_new();
zt_buf_add(buf, "foobarbaz\0", 10);
ZT_UNIT_ASSERT_EQUAL(test, zt_buf_length(buf), 10);
ZT_UNIT_ASSERT(test, strcmp("foobarbaz", (char *)zt_buf_get(buf)) == 0);
ZT_UNIT_ASSERT(test, zt_buf_drain(buf, 3) == 7);
ZT_UNIT_ASSERT(test, strcmp("barbaz", (char *)zt_buf_get(buf)) == 0);
ZT_UNIT_ASSERT_EQUAL(test, zt_buf_length(buf), 7);
ZT_UNIT_ASSERT(test, zt_buf_drain(buf, 2) == 5);
ZT_UNIT_ASSERT(test, strcmp("rbaz", (char *)zt_buf_get(buf)) == 0);
ZT_UNIT_ASSERT_EQUAL(test, zt_buf_length(buf), 5);
ZT_UNIT_ASSERT(test, zt_buf_drain(buf, -1) == 0);
zt_buf_free(buf);
}
int
register_buf_suite(struct zt_unit * unit) {
struct zt_unit_suite * suite;
suite = zt_unit_register_suite(unit, "zt_buf", NULL, NULL, NULL);
zt_unit_register_test(suite, "basic", basic_tests);
zt_unit_register_test(suite, "iov", iov_tests);
zt_unit_register_test(suite, "drain", drain_tests);
return 0;
}
|
72 | ./libzt/tests/bstream_test.c | #include <string.h>
#define ZT_WITH_UNIT
#include <zt.h>
static void
basic_tests(struct zt_unit_test *test, void *data UNUSED)
{
zt_bstream_t bs, clone;
char * test_string = "this is a test string",
string_test[256] = "";
uint8_t test_uint8 = 0xDE,
uint8_test = 0;
uint16_t test_uint16 = 0xDEAD,
uint16_test = 0;
uint32_t test_uint32 = 0xDEADBEEF,
uint32_test = 0;
uint64_t test_uint64 = 0xDEADBEEF,
uint64_test = 0;
float test_float = 1.0f,
float_test = 0.0f;
double test_double = 2.0,
double_test = 0.0;
bs = zt_bstream_new();
zt_bstream_write(bs, test_string, strlen(test_string),
sizeof(char), 0);
zt_bstream_write_float(bs, test_float);
zt_bstream_write_uint8(bs, test_uint8);
zt_bstream_write_uint16(bs, test_uint16);
zt_bstream_write_uint32(bs, test_uint32);
zt_bstream_write_uint64(bs, test_uint64);
zt_bstream_write_double(bs, test_double);
zt_bstream_rewind(bs);
zt_bstream_read(bs, &string_test[0], strlen(test_string),
sizeof(char), 0);
zt_bstream_read_float(bs, &float_test);
zt_bstream_read_uint8(bs, &uint8_test);
zt_bstream_read_uint16(bs, &uint16_test);
zt_bstream_read_uint32(bs, &uint32_test);
zt_bstream_read_uint64(bs, &uint64_test);
zt_bstream_read_double(bs, &double_test);
ZT_UNIT_ASSERT(test,
strcmp(test_string, string_test) == 0);
ZT_UNIT_ASSERT(test,
uint8_test == test_uint8);
ZT_UNIT_ASSERT(test,
uint16_test == test_uint16);
ZT_UNIT_ASSERT(test,
uint32_test == test_uint32);
ZT_UNIT_ASSERT(test,
uint64_test == test_uint64);
ZT_UNIT_ASSERT(test,
float_test == test_float);
ZT_UNIT_ASSERT(test,
double_test == test_double);
clone = zt_bstream_clone(bs);
zt_bstream_rewind(clone);
zt_bstream_read(clone, &string_test[0], strlen(test_string),
sizeof(char), 0);
ZT_UNIT_ASSERT(test,
strcmp(test_string, string_test) == 0);
zt_bstream_rewind(clone);
clone->flipendian = 1;
zt_bstream_write(clone, test_string, strlen(test_string),
sizeof(char), 0);
zt_bstream_rewind(clone);
memset(string_test, 0, 256);
zt_bstream_read(clone, string_test, strlen(test_string),
sizeof(char), 0);
ZT_UNIT_ASSERT(test, strcmp(string_test, test_string) == 0);
zt_bstream_free(&bs);
zt_bstream_free(&clone);
} /* basic_tests */
int
register_bstream_suite(struct zt_unit *unit)
{
struct zt_unit_suite * suite;
suite = zt_unit_register_suite(unit, "bstream", NULL, NULL, NULL);
zt_unit_register_test(suite, "basic", basic_tests);
return 0;
}
|
73 | ./libzt/tests/llist_test.c | #include <string.h>
#define ZT_WITH_UNIT
#include <zt.h>
static void
basic_tests(struct zt_unit_test *test, void *data UNUSED)
{
char * m = "c";
zt_pair * x;
zt_pair * volatile y;
x = zt_llist_cons("a", NULL);
x = zt_llist_cons("b", x);
y = zt_llist_reverse(x);
m = (char *)zt_llist_nth(y, 1);
ZT_UNIT_ASSERT(test, strcmp(m, "a"));
zt_llist_free(y);
zt_llist_free(x);
}
int
register_llist_suite(struct zt_unit *unit)
{
struct zt_unit_suite * suite;
suite = zt_unit_register_suite(unit, "linked list tests", NULL, NULL, NULL);
zt_unit_register_test(suite, "basic", basic_tests);
return 0;
}
|
74 | ./libzt/tests/cfg_test.c | /*
* cfg_test.c config file parser test
*
* Copyright (C) 2000-2002, 2004, 2005, Jason L. Shiffer <jshiffer@zerotao.com>. All Rights Reserved.
* See file COPYING for details.
*
* $Id: cfg_test.c,v 1.2 2003/06/09 13:42:12 jshiffer Exp $
*
*/
/*
* Description:
*/
#include <string.h>
#define ZT_WITH_UNIT
#include <zt.h>
static void
basic_tests(struct zt_unit_test *test, void *data UNUSED)
{
zt_cfg_ty *cfg = NULL;
long i = 0;
char *s = NULL;
double f = 0.0, f2 = 0.00, f3 = 0.00;
int b = 0;
cfg = zt_cfg_ini("cfg_test.ini", 0);
ZT_UNIT_ASSERT(test, (cfg != NULL));
if (!cfg) {
printf("Could not open file cfg_test.ini\n");
exit(1);
}
zt_cfg_get(cfg, "main", "int_var", &i, zt_cfg_int);
zt_cfg_get(cfg, "main", "bool_var", &b, zt_cfg_bool);
zt_cfg_get(cfg, "main", "float_var", &f, zt_cfg_float);
zt_cfg_get(cfg, "main", "string_var", &s, zt_cfg_string);
ZT_UNIT_ASSERT(test, (b == 1));
ZT_UNIT_ASSERT(test, (i == 1));
ZT_UNIT_ASSERT(test, (f == 99.999));
ZT_UNIT_ASSERT(test, (!strcmp(s, "This is a string")));
zt_cfg_get_int(cfg, "main", "int_var", &i);
zt_cfg_get_bool(cfg, "main", "bool_var", &b);
zt_cfg_get_float(cfg, "main", "float_var", &f);
zt_cfg_get_string(cfg, "main", "string_var", &s);
ZT_UNIT_ASSERT(test, (b == 1));
ZT_UNIT_ASSERT(test, (i == 1));
ZT_UNIT_ASSERT(test, (f == 99.999));
ZT_UNIT_ASSERT(test, (!strcmp(s, "This is a string")));
f = f + 100.00;
zt_cfg_set(cfg, "main2", "float_var", &f, zt_cfg_float);
zt_cfg_get(cfg, "main", "float_var", &f, zt_cfg_float);
zt_cfg_get(cfg, "main2", "float_var", &f2, zt_cfg_float);
zt_cfg_get(cfg, "main3", "float_var", &f3, zt_cfg_float);
ZT_UNIT_ASSERT(test, (f == 199.999));
ZT_UNIT_ASSERT(test, (f2 == 199.999));
ZT_UNIT_ASSERT(test, (f3 == 99.999));
ZT_UNIT_ASSERT(test, (zt_cfg_get(cfg, "main", "int_var", &i, zt_cfg_bool) == -1));
ZT_UNIT_ASSERT(test, (zt_cfg_get(cfg, "main", "int_var", &i, zt_cfg_float) == -1));
ZT_UNIT_ASSERT(test, (zt_cfg_get(cfg, "main", "int_var", &i, zt_cfg_string) == -1));
ZT_UNIT_ASSERT(test, (zt_cfg_get(cfg, "main", "float_var", &f, zt_cfg_bool) == -1));
ZT_UNIT_ASSERT(test, (zt_cfg_get(cfg, "main", "float_var", &f, zt_cfg_int) == -1));
ZT_UNIT_ASSERT(test, (zt_cfg_get(cfg, "main", "float_var", &f, zt_cfg_string) == -1));
ZT_UNIT_ASSERT(test, (zt_cfg_get(cfg, "main", "string_var", &i, zt_cfg_bool) == -1));
ZT_UNIT_ASSERT(test, (zt_cfg_get(cfg, "main", "string_var", &i, zt_cfg_float) == -1));
ZT_UNIT_ASSERT(test, (zt_cfg_get(cfg, "main", "string_var", &i, zt_cfg_int) == -1));
zt_cfg_close(cfg);
} /* basic_tests */
int
register_cfg_suite(struct zt_unit *unit)
{
struct zt_unit_suite * suite;
suite = zt_unit_register_suite(unit, "cfg tests", NULL, NULL, NULL);
zt_unit_register_test(suite, "basic", basic_tests);
return 0;
}
|
75 | ./libzt/tests/log_test.c | /*
* Copyright (C) 2000-2004, Jason L. Shiffer <jshiffer@zerotao.com>. All Rights Reserved.
* See file COPYING for details.
*
* $Id: zt_log_test.c,v 1.7 2003/11/26 15:45:10 jshiffer Exp $
*
*/
/*
* Description:
*/
#include <string.h>
#define ZT_WITH_UNIT
#include <zt.h>
static void
basic_tests(struct zt_unit_test *test, void *data UNUSED)
{
char position1[255];
char position2[255];
zt_log_ty * logger;
/* zt_log_ty *lstderr = zt_log_stderr((ZT_LOG_WITH_PROGNAME | ZT_LOG_WITH_LEVEL)); */
zt_log_ty * lfile = zt_log_file( "log.err",
ZT_LOG_FILE_OVERWRITE,
(ZT_LOG_EMU_SYSLOG | ZT_LOG_WITH_LEVEL));
/* zt_log_ty *lsyslog = zt_log_syslog(LOG_PID, LOG_DAEMON, ZT_LOG_RAW); */
zt_progname("."PATH_SEPERATOR"unit_test", STRIP_DIR);
/* capture the standard logger and set to the new logger */
logger = zt_log_logger(lfile);
zt_log_set_opts(lfile, (ZT_LOG_RAW));
zt_log_printf( zt_log_debug, "ZT_LOG_RAW" );
zt_log_set_opts(lfile, (ZT_LOG_WITH_DATE));
zt_log_printf( zt_log_debug, "ZT_LOG_WITH_DATE" );
zt_log_set_opts(lfile, (ZT_LOG_WITH_LEVEL));
zt_log_printf( zt_log_debug, "ZT_LOG_WITH_LEVEL" );
zt_log_set_opts(lfile, (ZT_LOG_WITH_SYSNAME));
zt_log_printf( zt_log_debug, "ZT_LOG_WITH_SYSNAME" );
zt_log_set_opts(lfile, (ZT_LOG_WITH_SYSNAME | ZT_LOG_WITH_PROGNAME));
zt_log_printf( zt_log_debug, "ZT_LOG_WITH_SYSNAME | ZT_LOG_WITH_PROGNAME" );
zt_log_set_opts(lfile, (ZT_LOG_WITH_PROGNAME));
zt_log_printf( zt_log_debug, "ZT_LOG_WITH_PROGNAME" );
zt_log_set_opts(lfile, (ZT_LOG_WITH_PID));
zt_log_printf( zt_log_debug, "ZT_LOG_WITH_PID" );
zt_log_set_opts(lfile, (ZT_LOG_EMU_SYSLOG));
zt_log_printf( zt_log_debug, "ZT_LOG_EMU_SYSLOG" );
zt_log_set_opts(lfile, (ZT_LOG_RAW));
/* these need to be on the same line for the test to work */
sprintf(position1, "(%s:%d)", __FILE__, __LINE__); ZT_LOG_XDEBUG( "LOG_DEBUG" );
sprintf(position2, "(%s:%d)", __FILE__, __LINE__); ZT_LOG_DEBUG_INFO(), zt_log_lprintf(lfile, zt_log_debug, "lprintf with debugging");
/* reset to the default logger */
zt_log_logger(logger);
zt_log_close(lfile);
{
FILE *file = fopen("log.err", "r");
int items = 0;
char msg[255];
char level[255];
char sysname[255];
char progname[255];
int pid = 0;
char month[255];
int date = 0;
char time[255];
ZT_UNIT_ASSERT(test, (file));
items = fscanf(file, "%s\n", msg);
ZT_UNIT_ASSERT(test, ((items == 1) &&
(!strcmp(msg, "ZT_LOG_RAW"))));
items = fscanf(file, "%s %d %s : %s\n", month, &date, time, msg);
ZT_UNIT_ASSERT(test, ((items == 4) &&
(!strcmp(msg, "ZT_LOG_WITH_DATE"))));
items = fscanf(file, "%s %s\n", level, msg);
ZT_UNIT_ASSERT(test, ((items == 2) &&
(!strcmp(msg, "ZT_LOG_WITH_LEVEL"))));
items = fscanf(file, "%s %s\n", sysname, msg);
ZT_UNIT_ASSERT(test, ((items == 2) &&
(!strcmp(msg, "ZT_LOG_WITH_SYSNAME"))));
items = fscanf(file, "%s %s %[A-Z_| ]\n", sysname, progname, msg);
ZT_UNIT_ASSERT(test, ((items == 3) &&
(!strcmp(msg, "ZT_LOG_WITH_SYSNAME | ZT_LOG_WITH_PROGNAME"))));
items = fscanf(file, "%s %s\n", progname, msg);
ZT_UNIT_ASSERT(test, ((items == 2) &&
(!strcmp(msg, "ZT_LOG_WITH_PROGNAME"))));
items = fscanf(file, "[%d]: %s\n", &pid, msg);
ZT_UNIT_ASSERT(test, ((items == 2) &&
(!strcmp(msg, "ZT_LOG_WITH_PID"))));
items = fscanf(file, "%s %d %s %s %[a-zA-Z_-][%d]: %s\n", month, &date, time, sysname, progname, &pid, msg);
ZT_UNIT_ASSERT(test, ((items == 7) &&
(!strcmp(msg, "ZT_LOG_EMU_SYSLOG"))));
#ifdef DEBUG
items = fscanf(file, "LOG_DEBUG: in basic_tests at %s\n", msg);
ZT_UNIT_ASSERT(test, ((items == 1) &&
(!strcmp(msg, position1))));
#endif
#if 0
/* issues with paths with spaces in them */
items = fscanf(file, "lprintf with debugging: in basic_tests at %s\n", msg);
ZT_UNIT_ASSERT(test, ((items == 1) &&
(!strcmp(msg, position2))));
#endif
fclose(file);
/* unlink("log.err"); */
}
} /* basic_tests */
#ifdef HAVE_PTHREADS
#include <pthread.h>
static int _count1 = 0;
static int _count2 = 0;
void *
log_1(void * p) {
const char * file1;
const char * func1;
int line1;
const char * file2;
const char * func2;
int line2;
ZT_LOG_DEBUG_INFO(), file1 = __FILE__, line1 = __LINE__, func1 = __FUNCTION__;
zt_log_get_debug_info( &file2, &line2, &func2);
zt_log_printf(zt_log_err, "test1");
if ((strcmp(file1, file2) == 0) &&
(strcmp(func1, func2) == 0) &&
line1 == line2) {
_count1++;
}
return NULL;
}
void *
log_2(void * p) {
pthread_t * pt = p;
const char * file1;
const char * func1;
int line1;
const char * file2;
const char * func2;
int line2;
ZT_LOG_DEBUG_INFO(), file1 = __FILE__, line1 = __LINE__, func1 = __FUNCTION__;
pthread_join(*pt, NULL);
zt_log_get_debug_info(&file2, &line2, &func2);
zt_log_printf(zt_log_err, "test2");
if ((strcmp(file1, file2) == 0) &&
(strcmp(func1, func2) == 0) &&
line1 == line2) {
_count2++;
}
return NULL;
}
void
threaded_tests(struct zt_unit_test *test, void *data UNUSED) {
pthread_t t1;
pthread_t t2;
int i;
zt_log_ty * lfile;
zt_log_ty * ologger;
lfile = zt_log_file( "test.log", ZT_LOG_FILE_APPEND, 0);
ologger = zt_log_logger(lfile);
for(i = 0; i < 100; i++) {
pthread_create(&t1, NULL, log_1, NULL);
pthread_create(&t2, NULL, log_2, &t1);
pthread_join(t2, NULL);
}
ZT_UNIT_ASSERT(test, _count1 == 100);
ZT_UNIT_ASSERT(test, _count2 == 100);
zt_log_logger(ologger);
zt_log_close(lfile);
unlink("test.log");
}
#endif /* HAVE_PTHREADS */
int
register_log_suite(struct zt_unit *unit)
{
struct zt_unit_suite * suite;
suite = zt_unit_register_suite(unit, "logging tests", NULL, NULL, NULL);
zt_unit_register_test(suite, "basic", basic_tests);
#ifdef HAVE_PTHREADS
zt_unit_register_test(suite, "threaded", threaded_tests);
#endif /* HAVE_PTHREADS */
return 0;
}
|
76 | ./libzt/tests/cstr_test.c | /*
* Copyright (C) 2000-2002, 2004, 2005, 2006, Jason L. Shiffer <jshiffer@zerotao.com>. All Rights Reserved.
* See file COPYING for details.
*
* $Id: cstr_test.c,v 1.2 2003/06/09 13:42:12 jshiffer Exp $
*
*/
/*
* Description: tests for the strings interfaces
*/
#include <string.h>
#include <stdio.h>
#include <limits.h>
#define ZT_WITH_UNIT
#include <zt.h>
#include <errno.h>
static void
basic_tests(struct zt_unit_test *test, void *data UNUSED)
{
char test_string1[] = " Ok \n";
char * chomp_test = strdup(test_string1);
char * strip_test = strdup(test_string1);
char * ALPHA = "ABCDEFGHIJKLMNOPQRSTUVWXYZ";
char * AHPLA = "ZYXWVUTSRQPONMLKJIHGFEDCBA";
char * alpha = "abcdefghijklmnopqrstuvwxyz";
char * path = "/home/jshiffer/config.foo";
char * iface_str = "Interface";
char * spain = "The rain in Spain";
char * free_me;
char * free_me2;
char * hex = "34aa973cd4c4daa4f61FFB2BDBAD27316534016FXXX";
char digest[20];
char hex2[41];
char *split_test = "/a/b/c/d/";
zt_ptr_array *split_array;
zt_ptr_array *cut_array;
#if !defined(_WIN32)
char bname[PATH_MAX+1];
char dname[PATH_MAX+1];
#endif
zt_cstr_chomp(chomp_test);
ZT_UNIT_ASSERT(test, (strlen(chomp_test) == 5));
zt_cstr_strip(strip_test);
ZT_UNIT_ASSERT(test, (strlen(strip_test) == 3));
ZT_UNIT_ASSERT(test, (zt_cstr_rspn(test_string1, "\n ") == 2));
ZT_UNIT_ASSERT(test, (zt_cstr_rspn(test_string1, "Ok\n ") == strlen(test_string1)));
ZT_UNIT_ASSERT(test, (zt_cstr_rcspn(test_string1, "QRZ\nno") == strlen(test_string1) - 1));
ZT_UNIT_ASSERT(test, (zt_cstr_rcspn(test_string1, "Q") == strlen(test_string1)));
split_array = zt_cstr_split(split_test, "/");
ZT_UNIT_ASSERT_NOT_EQUAL(test, split_array, NULL);
ZT_UNIT_ASSERT_EQUAL(test, strcmp((const char *)zt_ptr_array_get_idx(split_array, 0), "a"), 0);
ZT_UNIT_ASSERT_EQUAL(test, strcmp((const char *)zt_ptr_array_get_idx(split_array, 1), "b"), 0);
ZT_UNIT_ASSERT_EQUAL(test, strcmp((const char *)zt_ptr_array_get_idx(split_array, 2), "c"), 0);
ZT_UNIT_ASSERT_EQUAL(test, strcmp((const char *)zt_ptr_array_get_idx(split_array, 3), "d"), 0);
ZT_UNIT_ASSERT_EQUAL(test, zt_ptr_array_get_idx(split_array, 4), NULL);
ZT_UNIT_ASSERT_EQUAL(test, zt_cstr_split_free(split_array), 0);
cut_array = zt_cstr_cut(split_test, '/', 1);
ZT_UNIT_ASSERT_NOT_EQUAL(test, cut_array, NULL);
ZT_UNIT_ASSERT_EQUAL(test, strcmp((const char *)zt_ptr_array_get_idx(cut_array, 0), "/a/b/c/d/"), 0);
ZT_UNIT_ASSERT_EQUAL(test, strcmp((const char *)zt_ptr_array_get_idx(cut_array, 1), "/b/c/d/"), 0);
ZT_UNIT_ASSERT_EQUAL(test, strcmp((const char *)zt_ptr_array_get_idx(cut_array, 2), "/c/d/"), 0);
ZT_UNIT_ASSERT_EQUAL(test, strcmp((const char *)zt_ptr_array_get_idx(cut_array, 3), "/d/"), 0);
ZT_UNIT_ASSERT_EQUAL(test, zt_ptr_array_get_idx(cut_array, 4), NULL);
ZT_UNIT_ASSERT_EQUAL(test, zt_cstr_cut_free(cut_array), 0);
cut_array = zt_cstr_cut(split_test, '/', 0);
ZT_UNIT_ASSERT_NOT_EQUAL(test, cut_array, NULL);
ZT_UNIT_ASSERT_EQUAL(test, strcmp((const char *)zt_ptr_array_get_idx(cut_array, 0), "a/b/c/d/"), 0);
ZT_UNIT_ASSERT_EQUAL(test, strcmp((const char *)zt_ptr_array_get_idx(cut_array, 1), "b/c/d/"), 0);
ZT_UNIT_ASSERT_EQUAL(test, strcmp((const char *)zt_ptr_array_get_idx(cut_array, 2), "c/d/"), 0);
ZT_UNIT_ASSERT_EQUAL(test, strcmp((const char *)zt_ptr_array_get_idx(cut_array, 3), "d/"), 0);
ZT_UNIT_ASSERT_EQUAL(test, zt_ptr_array_get_idx(cut_array, 4), NULL);
ZT_UNIT_ASSERT_EQUAL(test, zt_cstr_cut_free(cut_array), 0);
cut_array = zt_cstr_tok(split_test, '/', 0);
ZT_UNIT_ASSERT_NOT_EQUAL(test, cut_array, NULL);
ZT_UNIT_ASSERT_EQUAL(test, strcmp((const char *)zt_ptr_array_get_idx(cut_array, 0), "/a/b/c/d"), 0);
ZT_UNIT_ASSERT_EQUAL(test, strcmp((const char *)zt_ptr_array_get_idx(cut_array, 1), "/a/b/c"), 0);
ZT_UNIT_ASSERT_EQUAL(test, strcmp((const char *)zt_ptr_array_get_idx(cut_array, 2), "/a/b"), 0);
ZT_UNIT_ASSERT_EQUAL(test, strcmp((const char *)zt_ptr_array_get_idx(cut_array, 3), "/a"), 0);
ZT_UNIT_ASSERT_EQUAL(test, zt_ptr_array_get_idx(cut_array, 4), NULL);
ZT_UNIT_ASSERT_EQUAL(test, zt_cstr_cut_free(cut_array), 0);
#if !defined(_WIN32)
zt_cstr_basename(bname, PATH_MAX, path, NULL);
ZT_UNIT_ASSERT(test, (!strcmp(bname, "config.foo")));
zt_cstr_basename(bname, PATH_MAX, path, ".foo");
ZT_UNIT_ASSERT(test, (!strcmp(bname, "config")));
zt_cstr_basename(bname, PATH_MAX, "c:\\Windows\\System32\\", NULL);
ZT_UNIT_ASSERT(test, (!strcmp(bname, "c:\\Windows\\System32\\")));
zt_cstr_dirname(dname, PATH_MAX, path);
ZT_UNIT_ASSERT(test, (!strcmp(dname, "/home/jshiffer")));
zt_cstr_dirname(bname, PATH_MAX, "/foo/bar/baz/");
ZT_UNIT_ASSERT(test, (!strcmp(bname, "/foo/bar")));
ZT_UNIT_ASSERT(test, strcmp(free_me = zt_cstr_path_append("/foo/bar", "baz/"), "/foo/bar/baz/") == 0); zt_free(free_me);
ZT_UNIT_ASSERT(test, strcmp(free_me = zt_cstr_path_append("/foo/bar", "/baz/"), "/foo/bar/baz/") == 0); zt_free(free_me);
zt_cstr_dirname(dname, PATH_MAX, "foo");
ZT_UNIT_ASSERT(test, (!strcmp(dname, ".")));
#else /* _WIN32 */
/* reverse the mapping */
#endif /* _WIN32 */
free(strip_test);
free(chomp_test);
ZT_UNIT_ASSERT(test, zt_cstr_abspath(PATH_SEPERATOR"tmp") == true);
ZT_UNIT_ASSERT(test, zt_cstr_abspath("."PATH_SEPERATOR"tmp") == true);
ZT_UNIT_ASSERT(test, zt_cstr_abspath("tmp") == false);
ZT_UNIT_ASSERT(test, (strcmp(free_me = zt_cstr_sub(iface_str, 5, 8), "face") == 0)); zt_free(free_me);
ZT_UNIT_ASSERT(test, (strcmp(free_me = zt_cstr_sub(iface_str, 5, -1), "face") == 0)); zt_free(free_me);
ZT_UNIT_ASSERT(test, (strcmp(free_me = zt_cstr_sub(iface_str, -4, 8), "face") == 0)); zt_free(free_me);
ZT_UNIT_ASSERT(test, (strcmp(free_me = zt_cstr_sub(iface_str, -4, -1), "face") == 0)); zt_free(free_me);
ZT_UNIT_ASSERT(test, (strcmp(free_me = zt_cstr_sub(iface_str, -4, -2), "fac") == 0)); zt_free(free_me);
ZT_UNIT_ASSERT(test, (strcmp(free_me = zt_cstr_catv(iface_str, -4, -1, " plant", 0, -1, NULL), "face plant") == 0)); zt_free(free_me);
ZT_UNIT_ASSERT(test, (strcmp(free_me = zt_cstr_cat(iface_str, -4, -1, " plant", 0, -1), "face plant") == 0)); zt_free(free_me);
ZT_UNIT_ASSERT(test, (strcmp(free_me = zt_cstr_map(ALPHA, 0, -1, ALPHA, alpha), alpha) == 0)); zt_free(free_me);
ZT_UNIT_ASSERT(test, (strcmp(free_me = zt_cstr_map(ALPHA, 0, -1, NULL, NULL), ALPHA) == 0)); zt_free(free_me);
ZT_UNIT_ASSERT(test, zt_cstr_map(NULL, 0, -1, NULL, NULL) == NULL);
ZT_UNIT_ASSERT(test, (strcmp(free_me = zt_cstr_reverse(ALPHA, 0, -1), AHPLA) == 0)); zt_free(free_me);
ZT_UNIT_ASSERT(test, (strcmp(free_me = zt_cstr_dup(ALPHA, 0, -1, 1), ALPHA) == 0)); zt_free(free_me);
free_me = zt_cstr_dup(ALPHA, 0, -1, 2);
free_me2 = zt_cstr_cat(ALPHA, 0, -1, ALPHA, 0, -1);
ZT_UNIT_ASSERT(test, strcmp(free_me, free_me2) == 0);
zt_free(free_me);
zt_free(free_me2);
ZT_UNIT_ASSERT(test, zt_cstr_find(spain, 0, -1, "") == -1);
ZT_UNIT_ASSERT(test, zt_cstr_find(spain, 0, -1, "e") == 2);
ZT_UNIT_ASSERT(test, zt_cstr_find(spain, 0, -1, "rain") == 4);
ZT_UNIT_ASSERT(test, zt_cstr_find(spain, 0, -1, "in") == 6);
ZT_UNIT_ASSERT(test, zt_cstr_find(spain, 0, -1, "Spain") == 12);
ZT_UNIT_ASSERT(test, zt_cstr_find(spain, 0, -1, "zqb") == -1);
ZT_UNIT_ASSERT(test, zt_cstr_rfind(spain, 0, -1, "") == -1);
ZT_UNIT_ASSERT(test, zt_cstr_rfind(spain, 0, -1, "e") == 2);
ZT_UNIT_ASSERT(test, zt_cstr_rfind(spain, 0, -1, "rain") == 4);
ZT_UNIT_ASSERT(test, zt_cstr_rfind(spain, 0, -1, "in") == 15);
ZT_UNIT_ASSERT(test, zt_cstr_rfind(spain, 0, -1, "The") == 0);
ZT_UNIT_ASSERT(test, zt_cstr_rfind(spain, 0, -1, "zqb") == -1);
ZT_UNIT_ASSERT(test, zt_cstr_any(spain, 0, -1, "zqbS") == 12);
ZT_UNIT_ASSERT(test, zt_cstr_any(spain, 0, -1, "zqb") == -1);
ZT_UNIT_ASSERT(test, zt_cstr_rany(spain, 0, -1, "zqbS") == 12);
ZT_UNIT_ASSERT(test, zt_cstr_rany(spain, 0, -1, "zqb") == -1);
ZT_UNIT_ASSERT(test, strcmp(&iface_str[zt_cstr_pos(iface_str, -4)], "face") == 0);
ZT_UNIT_ASSERT(test, zt_cstr_len(iface_str, -4, -1) == 4);
ZT_UNIT_ASSERT(test, zt_cstr_cmp(iface_str, -4, -1, iface_str, 5, 8) == 0);
ZT_UNIT_ASSERT(test, zt_cstr_cmp(iface_str, 0, -1, iface_str, 0, -1) == 0);
ZT_UNIT_ASSERT(test, zt_cstr_cmp(iface_str, 0, -1, iface_str, 0, 4) == 1);
ZT_UNIT_ASSERT(test, zt_cstr_cmp(iface_str, 0, 4, iface_str, 0, -1) == -1);
/* */
ZT_UNIT_ASSERT(test, zt_cstr_chr(iface_str, 0, -1, 'i') == 0);
ZT_UNIT_ASSERT(test, zt_cstr_rchr(iface_str, 0, -1, 'i') == 0);
ZT_UNIT_ASSERT(test, zt_cstr_chr(iface_str, 0, -1, 'e') == 3);
ZT_UNIT_ASSERT(test, zt_cstr_rchr(iface_str, 0, -1, 'e') == 8);
ZT_UNIT_ASSERT(test, zt_cstr_chr(iface_str, 0, -1, 'r') == 4);
ZT_UNIT_ASSERT(test, zt_cstr_rchr(iface_str, 0, -1, 'r') == 4);
ZT_UNIT_ASSERT(test, zt_cstr_upto(iface_str, 0, -1, "xyz") == -1);
ZT_UNIT_ASSERT(test, zt_cstr_upto(iface_str, 0, -1, "AIb") == 0);
ZT_UNIT_ASSERT(test, zt_cstr_upto(iface_str, 0, -1, "far") == 4);
ZT_UNIT_ASSERT(test, zt_cstr_rupto(iface_str, 0, -1, "xyz") == -1);
ZT_UNIT_ASSERT(test, zt_cstr_rupto(iface_str, 0, -1, "AIb") == 0);
ZT_UNIT_ASSERT(test, zt_cstr_rupto(iface_str, 0, -1, "aeb") == 8);
ZT_UNIT_ASSERT(test, zt_cstr_rupto(iface_str, 0, -1, "ntr") == 4);
ZT_UNIT_ASSERT(test, zt_hex_to_binary(hex, 40, NULL, 0) == 20);
ZT_UNIT_ASSERT(test, zt_hex_to_binary(hex, 40, digest, 23) == 20);
ZT_UNIT_ASSERT(test, zt_hex_to_binary(hex, 43, digest, 23) == 0);
ZT_UNIT_ASSERT(test, errno == EINVAL);
ZT_UNIT_ASSERT(test, zt_binary_to_hex(digest, 20, hex2, 41) == 40);
free_me = zt_cstr_map(hex, 0, -1, ALPHA, alpha);
ZT_UNIT_ASSERT(test, memcmp(hex2, free_me, 40) == 0);
zt_free(free_me);
ZT_UNIT_ASSERT(test, zt_hex_to_binary("AX", 2, digest, 1) == 0);
ZT_UNIT_ASSERT(test, errno == EINVAL);
} /* basic_tests */
static void
intlen_test(struct zt_unit_test *test, void *data UNUSED)
{
int volatile i;
for (i = 0; i < 10; i++) {
ZT_UNIT_ASSERT(test, zt_cstr_int_display_len(i) == 1);
}
for (i = 10; i < 100; i++) {
ZT_UNIT_ASSERT(test, zt_cstr_int_display_len(i) == 2);
}
for (i = 100; i < 1000; i++) {
ZT_UNIT_ASSERT(test, zt_cstr_int_display_len(i) == 3);
}
ZT_UNIT_ASSERT(test, zt_cstr_int_display_len(1000) == 4);
ZT_UNIT_ASSERT(test, zt_cstr_int_display_len(9999) == 4);
ZT_UNIT_ASSERT(test, zt_cstr_int_display_len(10000) == 5);
ZT_UNIT_ASSERT(test, zt_cstr_int_display_len(99999) == 5);
ZT_UNIT_ASSERT(test, zt_cstr_int_display_len(100000) == 6);
ZT_UNIT_ASSERT(test, zt_cstr_int_display_len(999999) == 6);
ZT_UNIT_ASSERT(test, zt_cstr_int_display_len(1000000) == 7);
ZT_UNIT_ASSERT(test, zt_cstr_int_display_len(9999999) == 7);
for (i = -1; i > -10; i--) {
ZT_UNIT_ASSERT(test, zt_cstr_int_display_len(i) == 2);
}
for (i = -10; i > -100; i--) {
ZT_UNIT_ASSERT(test, zt_cstr_int_display_len(i) == 3);
}
for (i = -100; i > -1000; i--) {
ZT_UNIT_ASSERT(test, zt_cstr_int_display_len(i) == 4);
}
ZT_UNIT_ASSERT(test, zt_cstr_int_display_len(-1000) == 5);
ZT_UNIT_ASSERT(test, zt_cstr_int_display_len(-9999) == 5);
ZT_UNIT_ASSERT(test, zt_cstr_int_display_len(-10000) == 6);
ZT_UNIT_ASSERT(test, zt_cstr_int_display_len(-99999) == 6);
ZT_UNIT_ASSERT(test, zt_cstr_int_display_len(-100000) == 7);
ZT_UNIT_ASSERT(test, zt_cstr_int_display_len(-999999) == 7);
ZT_UNIT_ASSERT(test, zt_cstr_int_display_len(-1000000) == 8);
ZT_UNIT_ASSERT(test, zt_cstr_int_display_len(-9999999) == 8);
} /* intlen_test */
static void
itoa_test(struct zt_unit_test *test, void *data UNUSED)
{
int i;
char buffer[100];
memset(buffer, 0, 100);
/* Illegal input validation. */
ZT_UNIT_ASSERT(test, zt_cstr_itoa(NULL, 0, 0, 100) == -1);
ZT_UNIT_ASSERT(test, zt_cstr_itoa(buffer, 0, 0, 0) == -1);
ZT_UNIT_ASSERT(test, zt_cstr_itoa(buffer, 10, 5, 6) == -1);
/* Valid inputs */
ZT_UNIT_ASSERT(test, zt_cstr_itoa(buffer, 0, 0, 100) == 1);
ZT_UNIT_ASSERT(test, strcmp("0", buffer) == 0);
ZT_UNIT_ASSERT(test, zt_cstr_itoa(buffer, 3, 0, 100) == 1);
ZT_UNIT_ASSERT(test, strcmp("3", buffer) == 0);
ZT_UNIT_ASSERT(test, zt_cstr_itoa(buffer, 10, 0, 100) == 2);
ZT_UNIT_ASSERT(test, strcmp("10", buffer) == 0);
ZT_UNIT_ASSERT(test, zt_cstr_itoa(buffer, 42, 0, 100) == 2);
ZT_UNIT_ASSERT(test, strcmp("42", buffer) == 0);
ZT_UNIT_ASSERT(test, zt_cstr_itoa(buffer, 987654321, 0, 100) == 9);
ZT_UNIT_ASSERT(test, strcmp("987654321", buffer) == 0);
ZT_UNIT_ASSERT(test, zt_cstr_itoa(buffer, -3, 0, 100) == 2);
ZT_UNIT_ASSERT(test, strcmp("-3", buffer) == 0);
ZT_UNIT_ASSERT(test, zt_cstr_itoa(buffer, -10, 0, 100) == 3);
ZT_UNIT_ASSERT(test, strcmp("-10", buffer) == 0);
ZT_UNIT_ASSERT(test, zt_cstr_itoa(buffer, -42, 0, 100) == 3);
ZT_UNIT_ASSERT(test, strcmp("-42", buffer) == 0);
ZT_UNIT_ASSERT(test, zt_cstr_itoa(buffer, -987654321, 0, 100) == 10);
ZT_UNIT_ASSERT(test, strcmp("-987654321", buffer) == 0);
/* offset */
for (i = 0; i < 20; i++) {
buffer[i] = 'a';
}
ZT_UNIT_ASSERT(test, zt_cstr_itoa(buffer, 301, 3, 100) == 6);
ZT_UNIT_ASSERT(test, strcmp("aaa301", buffer) == 0);
for (i = 0; i < 20; i++) {
buffer[i] = 'a';
}
ZT_UNIT_ASSERT(test, zt_cstr_itoa(buffer, -5920, 4, 100) == 9);
ZT_UNIT_ASSERT(test, strcmp("aaaa-5920", buffer) == 0);
} /* itoa_test */
int
register_cstr_suite(struct zt_unit *unit)
{
struct zt_unit_suite * suite;
suite = zt_unit_register_suite(unit, "string utils tests", NULL, NULL, NULL);
zt_unit_register_test(suite, "basic", basic_tests);
zt_unit_register_test(suite, "intlen", intlen_test);
zt_unit_register_test(suite, "itoa", itoa_test);
return 0;
}
|
77 | ./libzt/tests/progname_test.c | /*
* Copyright (C) 2000-2002, 2004, Jason L. Shiffer <jshiffer@zerotao.com>. All Rights Reserved.
* See file COPYING for details.
*
* $Id: progname_test.c,v 1.2 2003/06/09 13:42:12 jshiffer Exp $
*
*/
/*
* Description:
*/
#include <string.h>
#define ZT_WITH_UNIT
#include <zt.h>
static char * argv[] = { "test_app", NULL };
static char * argv_direct[] = { "./test_app", NULL };
static char * argv_direct2[] = { "./bar/test_app", NULL };
static char * argv_direct3[] = { "/foo/bar/test_app", NULL };
static char * argv_relative[] = { "../foo/bar/test_app", NULL };
static void
basic_tests(struct zt_unit_test *test, void *data UNUSED)
{
char * name = NULL;
char * path = NULL;
char * npath = NULL;
/* char nname[PATH_MAX+1]; */
char cwd[PATH_MAX+1];
char dname[PATH_MAX+1];
name = zt_progname(argv[0], 0);
ZT_UNIT_ASSERT(test, (!strcmp(name, argv[0])));
name = zt_progname(NULL, 0);
ZT_UNIT_ASSERT(test, (!strcmp(name, argv[0])));
name = zt_progname("foo", 0);
ZT_UNIT_ASSERT(test, (!strcmp(name, "foo")));
/* test the progpath */
if(getcwd(cwd, PATH_MAX) == NULL) {
ZT_UNIT_ASSERT(test, 0==1);
}
path = zt_progpath(NULL);
ZT_UNIT_ASSERT(test, (!strcmp(path, "*UNKNOWN*")));
/* use the path that is already available */
path = zt_progpath(argv[0]);
ZT_UNIT_ASSERT(test, strcmp(path, cwd) == 0);
/* return whatever is already set */
path = zt_progpath(NULL);
ZT_UNIT_ASSERT(test, strcmp(path, cwd) == 0);
/* use the PATH env var to find the appname */
/* npath = zt_cstr_catv(getenv("PATH"), 0, -1,
* ENV_SEPERATOR, 0, -1,
* getenv("PWD"), 0, -1, NULL);
*/
/* path = zt_os_progpath(); */
/* FIXME: disabled for the moment as the test does not support
* symlinks in the path ie getcwd != getenv("PWD")
* */
/* setenv("PATH", npath, 1); */
/* name = zt_cstr_basename(nname, PATH_MAX, argv[0], NULL); */
/* path = zt_progpath(name); */
/* ZT_UNIT_ASSERT(test, strcmp(path, getenv("PWD")) == 0); */
/* [> empty or null (after set) is the old path <] */
/* path = zt_progpath(""); */
/* ZT_UNIT_ASSERT(test, strcmp(path, getenv("PWD")) == 0); */
/* test direct */
path = zt_progpath(argv_direct[0]);
ZT_UNIT_ASSERT(test, strcmp(path, cwd) == 0);
{
/* test ./ prefix paths */
npath = zt_cstr_path_append(cwd, &argv_direct2[0][2]);
zt_cstr_dirname(dname, PATH_MAX, npath);
path = zt_progpath(argv_direct2[0]);
ZT_UNIT_ASSERT(test, strcmp(path, dname) == 0);
zt_free(npath);
}
{
/* test / prefixed paths */
zt_cstr_dirname(dname, PATH_MAX, argv_direct3[0]);
path = zt_progpath(argv_direct3[0]);
ZT_UNIT_ASSERT(test, strcmp(path, dname) == 0);
}
{
/* test .. relative paths */
npath = zt_cstr_path_append(cwd, argv_relative[0]);
zt_cstr_dirname(dname, PATH_MAX, npath);
path = zt_progpath(argv_relative[0]);
ZT_UNIT_ASSERT(test, strcmp(path, dname) == 0);
zt_free(npath);
}
}
int
register_progname_suite(struct zt_unit *unit)
{
struct zt_unit_suite * suite;
suite = zt_unit_register_suite(unit, "progname tests", NULL, NULL, NULL);
zt_unit_register_test(suite, "basic", basic_tests);
return 0;
}
|
78 | ./libzt/tests/list_test.c | /*
* Copyright (C) 2000-2005, Jason L. Shiffer <jshiffer@zerotao.com>. All Rights Reserved.
* See file COPYING for details.
*
* $Id$
*
*/
/*
* Description:
*/
#include <stdlib.h>
#include <stdio.h>
#define ZT_WITH_UNIT
#include <zt.h>
static int values[] = { 0, 1, 2, 3, 4, 5, 6, 7, 8, 9 };
#define VALUES_MAX sizeof_array(values) - 1
typedef struct list_elt list_elt;
struct list_elt {
zt_elist_t list;
int value;
};
static void
basic_tests(struct zt_unit_test *test, void *data UNUSED)
{
list_elt * al;
list_elt * al2;
zt_elist_t * volatile tmp;
zt_elist_t * tmp2;
size_t i;
zt_elist(list1);
zt_elist(list2);
ZT_UNIT_ASSERT(test, list1.prev == &list1);
ZT_UNIT_ASSERT(test, list1.next == &list1);
for (i = 0; i < sizeof_array(values); i++) {
al = zt_calloc(list_elt, 1);
al->value = values[i];
zt_elist_add(&list1, &al->list);
al = zt_calloc(list_elt, 1);
al->value = (int)(VALUES_MAX - values[i]);
zt_elist_add(&list2, &al->list);
}
tmp2 = &list2;
zt_elist_for_each(&list1, tmp) {
tmp2 = zt_elist_get_next(tmp2);
al = zt_elist_data(tmp, list_elt, list);
al2 = zt_elist_data(tmp2, list_elt, list);
ZT_UNIT_ASSERT(test, al->value + al2->value == 9);
}
zt_elist_for_each_safe(&list1, tmp, tmp2) {
al = zt_elist_data(tmp, list_elt, list);
zt_free(al);
}
zt_elist_for_each_safe(&list2, tmp, tmp2) {
al = zt_elist_data(tmp, list_elt, list);
zt_free(al);
}
}
int
register_list_suite(struct zt_unit *unit)
{
struct zt_unit_suite * suite;
suite = zt_unit_register_suite(unit, "list tests", NULL, NULL, NULL);
zt_unit_register_test(suite, "basic", basic_tests);
return 0;
}
|
79 | ./libzt/tests/macros_test.c | /*
* Copyright (C) 2000-2002, 2004, Jason L. Shiffer <jshiffer@zerotao.com>. All Rights Reserved.
* See file COPYING for details.
*
* $Id: macros_test.c,v 1.2 2003/06/09 13:42:12 jshiffer Exp $
*
*/
/*
* Description:
*/
#define ZT_WITH_UNIT
#include <zt.h>
static void
basic_tests(struct zt_unit_test *test, void *data UNUSED)
{
/* test ABS */
ZT_UNIT_ASSERT(test, (ABS(-1) == 1));
ZT_UNIT_ASSERT(test, (CLAMP(10, 2, 5) == 5));
ZT_UNIT_ASSERT(test, (CLAMP(1, 2, 5) == 2));
ZT_UNIT_ASSERT(test, (MAX(5, 10) == 10));
ZT_UNIT_ASSERT(test, (MAX(10, 5) == 10));
ZT_UNIT_ASSERT(test, (MIN(5, 10) == 5));
ZT_UNIT_ASSERT(test, (MIN(10, 5) == 5));
{
char size[10];
ZT_UNIT_ASSERT(test, (sizeof_array(size) == 10));
ZT_UNIT_ASSERT(test, (endof_array(size) == &size[10]));
}
}
int
register_macros_suite(struct zt_unit *unit)
{
struct zt_unit_suite * suite;
suite = zt_unit_register_suite(unit, "macro tests", NULL, NULL, NULL);
zt_unit_register_test(suite, "basic", basic_tests);
return 0;
}
|
80 | ./libzt/tests/time_test.c |
#define ZT_WITH_UNIT
#include <zt.h>
static void
basic_tests(struct zt_unit_test *test, void *data UNUSED)
{
#ifndef WIN32
struct timeval tv1;
struct timeval tv2;
struct timeval tv_zero = { 0, 0 }; /* 0 second diff time */
struct timeval tv4 = { 2, 0 }; /* 2 second diff time */
struct timeval tgt;
gettimeofday(&tv1, NULL);
gettimeofday(&tv2, NULL);
ZT_UNIT_ASSERT(test, zt_cmp_time(&tv1, &tv2) <= 0);
zt_diff_time(&tgt, &tv1, &tv2);
ZT_UNIT_ASSERT(test, zt_cmp_time(&tv4, &tgt) > 0);
zt_sub_time(&tgt, &tv1, &tv1);
ZT_UNIT_ASSERT(test, zt_cmp_time(&tgt, &tv_zero) == 0);
zt_add_time(&tgt, &tv1, &tv1);
ZT_UNIT_ASSERT(test, zt_cmp_time(&tgt, &tv1) > 0);
/*
* {
* struct time_result tr;
*
* void *test_fn(void * f) {
* sleep(1);
* return NULL;
* }
*
* zt_time(1, &tr, test_fn, NULL);
* zt_time_print_result(&tr, "test_fn", 1);
* }
*/
#endif /* WIN32 */
}
int
register_time_suite(struct zt_unit *unit)
{
struct zt_unit_suite * suite;
suite = zt_unit_register_suite(unit, "time tests", NULL, NULL, NULL);
zt_unit_register_test(suite, "basic", basic_tests);
return 0;
}
|
81 | ./libzt/tests/gc_test.c | #define ZT_WITH_UNIT
#define ZT_WITH_GC
#include <zt.h>
#undef DEBUG_GC
#define INT 1
#define ATOM 2
typedef struct atom atom;
struct atom {
zt_gc_collectable_t mark;
int type;
union {
struct atom * atom;
int number;
} value;
};
static int ints_marked = 0;
static int atoms_marked = 0;
static int atoms_freed = 0;
static void mark_atom(zt_gc_t *gc, void *pdata UNUSED, void *v)
{
atom *a = (atom *)v;
if (a->type == INT) {
/* printf("Marking Int: %p\n", (void *)a); */
ints_marked++;
} else {
/* printf("Marking Atom: %p %p\n", (void *)a, (void *)a->value.atom); */
atoms_marked++;
if (a->value.atom != NULL) {
zt_gc_mark_value(gc, a->value.atom);
}
}
return;
}
static void
release_atom(zt_gc_t *gc UNUSED, void *pdata UNUSED, void **v)
{
atom **a = (atom **)v;
/* printf("release %p\n", *v); */
atoms_freed++;
free(*a);
*a = NULL;
}
static void
basic_tests(struct zt_unit_test *test, void *data UNUSED)
{
zt_gc_t gc;
atom * root;
int i;
/* atom * protected; */
#define RSTART 1
#define REND 100
#define MARKS_PER 100
#define ALLOCS_PER 1
root = zt_calloc(atom, 1);
root->type = ATOM;
root->value.atom = NULL;
zt_gc_init(&gc, NULL, mark_atom, release_atom, MARKS_PER, ALLOCS_PER);
zt_gc_register_root(&gc, root);
/* zt_gc_print_heap(&gc); */
for (i = RSTART; i <= REND; i++) {
atom * a = zt_calloc(atom, 1);
/* you can register a value immediatly but it must be setup
* before you allocate another
*/
zt_gc_register_value(&gc, a);
if (i == RSTART ) {
a->type = INT;
a->value.number = i;
root->value.atom = a;
} else if (i == RSTART + 1) {
a->type = INT;
a->value.number = i;
zt_gc_protect(&gc, a);
/* protected = a; */
} else { /* if(i / 2 == 0 || last == NULL) { */
a->type = INT;
a->value.number = i;
/* last = a; */
/* protecting a value makes certain that it will be
* checked each scan
*/
/* zt_gc_protect(&gc, a); */
} /* else {
* a->type = ATOM;
* a->value.atom = last;
* /\* unprotecting a value leaves it available to be GC'd *\/
* zt_gc_unprotect(&gc, last);
* last = NULL;
* } */
}
{
int mark_base = REND;
int free_base = (REND - 3) - 1; /* - 3 for root, root->value.a, protected - 1 for last object added*/
int int_seen_base = ((REND * 3) - 6); /* root->value.a, protected, last_object need to be subtracted out */
/* for the last object placed on the scan queue */
#if DEBUG_GC
printf("Base seen: %d mark: %d free: %d\n", int_seen_base, mark_base, free_base);
printf("First seen: %d mark: %d free: %d\n", ints_marked, atoms_marked, atoms_freed);
#endif
ZT_UNIT_ASSERT(test, ints_marked == int_seen_base);
ZT_UNIT_ASSERT(test, atoms_marked == mark_base);
ZT_UNIT_ASSERT(test, atoms_freed == free_base);
/* second pass */
zt_gc_scan(&gc, 1);
int_seen_base += 3; /* root->value.a + protected + last_alloc */
mark_base += 1; /* root->value.a */
free_base += 1;
#if DEBUG_GC
printf("Base seen: %d mark: %d free: %d\n", int_seen_base, mark_base, free_base);
printf("Second seen: %d mark: %d free: %d\n", ints_marked, atoms_marked, atoms_freed);
#endif
ZT_UNIT_ASSERT(test, ints_marked == int_seen_base);
ZT_UNIT_ASSERT(test, atoms_marked == mark_base);
ZT_UNIT_ASSERT(test, atoms_freed == free_base);
/* third pass */
zt_gc_scan(&gc, 1);
int_seen_base += 2; /* protected + root->value.a */
mark_base += 1; /* root->value.a */
free_base += 1;
#if DEBUG_GC
printf("Base seen: %d mark: %d free: %d\n", int_seen_base, mark_base, free_base);
printf("Third seen: %d mark: %d free: %d\n", ints_marked, atoms_marked, atoms_freed);
#endif
ZT_UNIT_ASSERT(test, ints_marked == int_seen_base);
ZT_UNIT_ASSERT(test, atoms_marked == mark_base);
ZT_UNIT_ASSERT(test, atoms_freed == free_base);
/* final */
zt_gc_destroy(&gc);
/* printf("Destory %d %d %d\n", ints_marked, atoms_marked, atoms_freed); */
int_seen_base += 2;
mark_base += 1; /* root->value.a */
free_base += 3; /* root, root->value.a, protected */
#if DEBUG_GC
printf("Base seen: %d mark: %d free: %d\n", int_seen_base, mark_base, free_base);
printf("Final seen: %d mark: %d free: %d\n", ints_marked, atoms_marked, atoms_freed);
#endif
ZT_UNIT_ASSERT(test, ints_marked == int_seen_base);
ZT_UNIT_ASSERT(test, atoms_marked == mark_base);
ZT_UNIT_ASSERT(test, atoms_freed == free_base);
}
} /* basic_tests */
int
register_gc_suite(struct zt_unit *unit)
{
struct zt_unit_suite * suite;
suite = zt_unit_register_suite(unit, "gc tests", NULL, NULL, NULL);
zt_unit_register_test(suite, "basic", basic_tests);
return 0;
}
|
82 | ./libzt/tests/opts_test.c | /*
* Copyright (C) 2000-2004, Jason L. Shiffer <jshiffer@zerotao.com>. All Rights Reserved.
* See file COPYING for details.
*
* $Id$
*
*/
/*
* Description: tests for the options interface
*/
#ifdef HAVE_CONFIG_H
# include "zt_config.h"
#endif /* HAVE_CONFIG_H */
#ifdef HAVE_STRING_H
# include <string.h>
#endif /* HAVE_STRING_H */
#define ZT_WITH_UNIT
#include <zt.h>
#include <zt_opts.h>
long long_integer = 0;
long long_integer2 = 0;
char * str = 0;
int bool_type = 0;
int flag = 0;
int flag2 = 0;
int local_data = 0;
static char * s_argv[] = {
"unit_test",
"--long", "1",
"--bool=t",
"--flag",
"--string", "hello",
"-qqq",
"test_command",
"-l2",
"-L=4",
"-b", "f",
NULL
};
static int
local_func(int argn, int defn, int * argc, char ** argv, zt_opt_def_t * def, zt_opt_error error) {
return 0; /* return # of args consumed */
}
int
local_error(int code, char * fmt, ...) {
/* we could capture any errors here
* instead we will fail explicitly if
* we get any.
*/
int ret;
va_list ap;
va_start(ap, fmt);
ret = zt_opt_verror_default(code, fmt, ap);
va_end(ap);
if(ret != 0) {
exit(ret);
}
return 0;
}
#define TEST_LONG_STRING "This is a really long string intended to overflow the screen and make things look all wack"
static void
basic_opts_tests(struct zt_unit_test * test, void * data UNUSED) {
int argc = sizeof_array(s_argv) - 1; /* -1 for NULL */
int nargc = argc;
char ** pargv;
int ret;
char * err;
struct zt_opt_def options[] = {
{ 'h', "help", zt_opt_help_stdout, "[options]", "This help text" },
{ 'b', "bool", zt_opt_bool_int, &bool_type, "boolean_test" },
{ ZT_OPT_NSO, "string", zt_opt_string, &str, TEST_LONG_STRING },
{ 'f', "func", local_func, &local_data, "generic func test" },
{ 'l', "long", zt_opt_long, &long_integer, "long integer test" },
{ 'L', "long2", zt_opt_long, &long_integer2, "long integer2 test" },
{ ZT_OPT_NSO, "flag", zt_opt_flag_int, &flag, "flag test" },
{ 'q', ZT_OPT_NLO, zt_opt_flag_int, &flag2, "flag2 test" },
{ ZT_OPT_END() }
};
pargv = s_argv;
err = zt_opt_error_str(22, "test");
/* printf("%s\n", err); */
ZT_UNIT_ASSERT(test, strcmp("error: { code: 22, string: \"Invalid argument: test\" }", err) == 0);
ret = zt_opt_process_args(&nargc, pargv, options, NULL, local_error);
ZT_UNIT_ASSERT(test, ret == 0);
ZT_UNIT_ASSERT(test, nargc < argc); /* stopped on "test_command" */
ZT_UNIT_ASSERT(test, nargc == 8);
ZT_UNIT_ASSERT(test, pargv[nargc] != NULL);
ZT_UNIT_ASSERT(test, strcmp(pargv[nargc], "test_command") == 0);
ZT_UNIT_ASSERT(test, long_integer == 1);
ZT_UNIT_ASSERT(test, bool_type == 1);
ZT_UNIT_ASSERT(test, str != 0 && strcmp(str, "hello") == 0);
ZT_UNIT_ASSERT(test, flag == 1);
ZT_UNIT_ASSERT(test, flag2 == 3);
/* reset for next argv */
pargv = &pargv[nargc];
nargc = argc - nargc;
ZT_UNIT_ASSERT(test, nargc == 5);
ret = zt_opt_process_args(&nargc, pargv, options, NULL, NULL);
ZT_UNIT_ASSERT(test, ret == 0);
ZT_UNIT_ASSERT(test, nargc == 5);
ZT_UNIT_ASSERT(test, long_integer == 2);
ZT_UNIT_ASSERT(test, long_integer2 == 4);
ZT_UNIT_ASSERT(test, bool_type == 0);
ZT_UNIT_ASSERT(test, str != 0 && strcmp(str, "hello") == 0);
ZT_UNIT_ASSERT(test, flag == 1);
if (str) {
zt_free(str);
}
} /* basic_opts_tests */
int
register_opts_suite(struct zt_unit * unit) {
struct zt_unit_suite * suite;
suite = zt_unit_register_suite(unit, "option parsing tests", NULL, NULL, NULL);
zt_unit_register_test(suite, "basic", basic_opts_tests);
return 0;
}
|
83 | ./libzt/tests/include_test.c | #define ZT_WITH_UNIT
#include <zt.h>
static void
basic_tests(struct zt_unit_test *test, void *data UNUSED)
{
ZT_UNIT_ASSERT(test, 1); /* we compiled so we pass */
}
int
register_include_suite(struct zt_unit *unit)
{
struct zt_unit_suite * suite;
suite = zt_unit_register_suite(unit, "include", NULL, NULL, NULL);
zt_unit_register_test(suite, "basic", basic_tests);
return 0;
}
|
84 | ./libzt/tests/array_test.c | #include <string.h>
#define ZT_WITH_UNIT
#include <zt.h>
int values[] = { 0, 1, 2, 3, 4, 5, 6, 7, 8, 9 };
static void
basic_tests(struct zt_unit_test *test, void *data UNUSED)
{
size_t n;
size_t i;
int * pv;
zt_array_t array = zt_array_new(10, sizeof(int));
zt_array_t array2;
ZT_UNIT_ASSERT(test, array != NULL);
n = sizeof_array(values);
ZT_UNIT_ASSERT(test, zt_array_length(array) == sizeof_array(values));
ZT_UNIT_ASSERT(test, zt_array_size(array) == sizeof(int));
for (i = 0; i < n; i++) {
zt_array_put(array, i, &values[i]);
}
for (i = 0; i < n; i++) {
pv = zt_array_get(array, i);
ZT_UNIT_ASSERT(test, *pv == (int)i);
}
{
size_t tt = 0;
size_t nn = zt_array_length(array);
for (i = 0; i < nn; i++) {
pv = zt_array_get(array, i);
if (*pv == (int)i) {
tt++;
}
}
ZT_UNIT_ASSERT(test, nn == tt);
}
zt_array_resize(array, zt_array_length(array) * 2);
ZT_UNIT_ASSERT(test, zt_array_length(array) == n * 2);
array2 = zt_array_copy(array, zt_array_length(array));
ZT_UNIT_ASSERT(test, zt_array_length(array) == zt_array_length(array2));
ZT_UNIT_ASSERT(test, zt_array_size(array) == zt_array_size(array2));
{
size_t tt = 0;
for (i = 0; i < n; i++) {
pv = zt_array_get(array2, i);
if (*pv == (int)i) {
tt++;
}
}
ZT_UNIT_ASSERT(test, tt == n);
}
zt_array_free(&array);
zt_array_free(&array2);
{
char * tmp = "This is a test";
char * data = NULL;
array = zt_array_with_cstr(tmp);
data = zt_array_data(array);
ZT_UNIT_ASSERT(test, zt_array_length(array) == strlen(tmp));
ZT_UNIT_ASSERT(test, strncmp(tmp, data, zt_array_length(array)) == 0);
zt_array_free(&array);
}
} /* basic_tests */
int register_array_suite(struct zt_unit *unit)
{
struct zt_unit_suite * suite;
suite = zt_unit_register_suite(unit, "array tests", NULL, NULL, NULL);
zt_unit_register_test(suite, "basic", basic_tests);
return 0;
}
|
85 | ./libzt/tests/format_test.c | #include <string.h>
#define ZT_WITH_UNIT
#include <zt.h>
static size_t
cvt_S(int code UNUSED, void * value,
int put(int c, void *cl), void *cl,
unsigned char flags[], ssize_t width, ssize_t precision)
{
char * str = *(char **)value;
zt_assert(str);
return zt_fmt_puts(str, strlen(str), put, cl, flags, width, precision);
}
static void
basic_tests(struct zt_unit_test *test, void *data UNUSED)
{
char buf[256];
char * str;
zt_fmt_sprintf(buf, 256, "%s: %d\n", "this is a test", 34);
ZT_UNIT_ASSERT(test,
zt_cstr_cmp(buf, 0, -1,
"this is a test: 34\n", 0, -1) == 0);
zt_fmt_sprintf(buf, 256, "\t%s: 0x~x~~ %% %~ ~%\n", "this is a test", 34);
ZT_UNIT_ASSERT(test,
zt_cstr_cmp(buf, 0, -1,
"\tthis is a test: 0x22~ % ~ %\n", 0, -1) == 0);
ZT_UNIT_ASSERT(test, zt_fmt_register('S', cvt_S, 's') == 0);
zt_fmt_sprintf(buf, 256, "%S:\n", "this is a test");
ZT_UNIT_ASSERT(test,
zt_cstr_cmp(buf, 0, -1,
"this is a test:\n", 0, -1) == 0);
str = zt_fmt_strprintf("%s: %d\n", "this is a test", 34);
ZT_UNIT_ASSERT(test,
zt_cstr_cmp(str, 0, -1,
"this is a test: 34\n", 0, -1) == 0);
zt_free(str);
str = zt_fmt_strprintf("\t%s: 0x~x~~ %% %~ ~%\n", "this is a test", 34);
ZT_UNIT_ASSERT(test,
zt_cstr_cmp(str, 0, -1,
"\tthis is a test: 0x22~ % ~ %\n", 0, -1) == 0);
zt_free(str);
str = zt_fmt_strprintf("%#0.1s", "This is a test", 34);
ZT_UNIT_ASSERT(test, zt_cstr_cmp(str, 0, -1, "T", 0, -1) == 0);
zt_free(str);
str = zt_fmt_strprintf("%#4.1s", "This is a test", 34);
ZT_UNIT_ASSERT(test, zt_cstr_cmp(str, 0, -1, " ", 0, -1) == 0);
zt_free(str);
str = zt_fmt_strprintf("%#30.1s", "This is a test", 34);
ZT_UNIT_ASSERT(test, zt_cstr_cmp(str, 0, -1, "T", 0, -1) == 0);
zt_free(str);
str = zt_fmt_strprintf("%p", (void *)0xFFFFFFFF);
ZT_UNIT_ASSERT(test, zt_cstr_cmp(str, 0, -1, "ffffffff", 0, -1) == 0);
zt_free(str);
} /* basic_tests */
int
register_format_suite(struct zt_unit *unit)
{
struct zt_unit_suite * suite;
suite = zt_unit_register_suite(unit, "format", NULL, NULL, NULL);
zt_unit_register_test(suite, "basic", basic_tests);
return 0;
}
|
86 | ./libzt/tests/path_test.c | /*
* path_test.c path utils tests
*
* Copyright (C) 2010-2011 Jason L. Shiffer <jshiffer@zerotao.com>. All Rights Reserved.
* See File COPYING for details.
*/
#ifdef HAVE_SYS_STAT_H
#include <sys/stat.h>
#endif /* HAVE_SYS_STAT_H */
#include <string.h>
#define ZT_WITH_UNIT
#include <zt.h>
static void
basic_tests(struct zt_unit_test *test, void *data UNUSED)
{
struct stat stat_buf;
ZT_UNIT_ASSERT(test, zt_path_exists("foo/bar/baz") == -1);
ZT_UNIT_ASSERT(test, zt_mkdir("foo/bar/baz", 0777, zt_mkdir_create_parent) == 0);
ZT_UNIT_ASSERT(test, stat("foo/bar/baz", &stat_buf) == 0);
ZT_UNIT_ASSERT(test, zt_path_exists("foo/bar/baz") == 0);
ZT_UNIT_ASSERT(test, zt_mkdir("foo/bar/baz", 0777, zt_mkdir_create_parent) == 0);
ZT_UNIT_ASSERT(test, strcmp(zt_find_basedir("foo/bar/baz/spin", "baz"), "foo/bar/") == 0);
ZT_UNIT_ASSERT(test, zt_find_basedir("foo/bar/baz/spin", ".baz") == NULL);
rmdir("foo/bar/baz");
rmdir("foo/bar");
rmdir("foo");
}
int
register_path_suite(struct zt_unit *unit)
{
struct zt_unit_suite * suite;
suite = zt_unit_register_suite(unit, "path tests", NULL, NULL, NULL);
zt_unit_register_test(suite, "basic", basic_tests);
return 0;
}
|
87 | ./libzt/tests/ipv4_tbl_test.c | #include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <zt_stdint.h>
#define ZT_WITH_UNIT
#include <zt.h>
static struct _test_s {
char *addr;
uint8_t bitlen;
uint32_t start;
uint32_t end;
} network_tests[] = {
/* 192.168.0.0 - 192.168.0.255 */
{ "192.168.0.1/24", 24, 3232235520U, 3232235775U },
/* 192.168.1.0 - 192.168.1.127 */
{ "192.168.1.0/25", 25, 3232235776LU, 3232235903LU },
/* 192.168.1.130 - 192.168.1.131 */
{ "192.168.1.130/31", 31, 3232235906LU, 3232235907LU },
/* some /32's */
{ "192.168.2.3/32", 32, 3232236035LU, 3232236035LU },
{ "192.168.2.5", 32, 3232236037LU, 3232236037LU },
{ "192.168.2.7/32", 32, 3232236039LU, 3232236039LU },
/* 192.168.3.32 - 192.168.3.63 */
{ "192.168.3.32/27", 27, 3232236320LU, 3232236351LU },
{ NULL, 0, 0, 0 }
};
static struct _test_good {
char *addr;
char *should_match;
} tests_good[] = {
/* should match 192.168.0.0/24 */
{ "192.168.0.5/32", "192.168.0.0/24" },
{ "192.168.0.75/32", "192.168.0.0/24" },
{ "192.168.0.30/31", "192.168.0.0/24" },
{ "192.168.0.0/24", "192.168.0.0/24" },
/* should match 192.168.1.0/25 */
{ "192.168.1.10/32", "192.168.1.0/25" },
{ "192.168.1.16/30", "192.168.1.0/25" },
{ "192.168.1.0/25", "192.168.1.0/25" },
/* should match 192.168.1.130/31 */
{ "192.168.1.130/32", "192.168.1.130/31" },
{ "192.168.1.131/32", "192.168.1.130/31" },
{ "192.168.1.130/31", "192.168.1.130/31" },
/* these /32's should match */
{ "192.168.2.3/32", "192.168.2.3/32" },
{ "192.168.2.5/32", "192.168.2.5/32" },
{ "192.168.2.7/32", "192.168.2.7/32" },
/* should match 192.168.3.32/27 */
{ "192.168.3.32/32", "192.168.3.32/27" },
{ "192.168.3.34/30", "192.168.3.32/27" },
{ "192.168.3.32/27", "192.168.3.32/27" },
{ NULL, NULL }
};
char *tests_bad[] = {
/*
* make sure this won't match in 192.168.0.1/24
*/
"192.168.0.0/23",
/*
* make sure this won't match in 192.168.1.0/25
*/
"192.168.1.128/32",
/*
* make sure this won't match in 192.168.3.32/27
*/
"192.168.3.30/31",
/*
* random tests
*/
"0.0.0.0/0",
"5.5.5.0/24",
"9.9.9.0/32", NULL
};
static zt_ipv4_tbl *
test_table_init(struct zt_unit_test *test, void *data UNUSED)
{
zt_ipv4_tbl *table = NULL;
int i;
table = zt_ipv4_tbl_init(1024);
ZT_UNIT_ASSERT_EQUAL(test, table->sz, 1024);
ZT_UNIT_ASSERT_EQUAL(test, table->any, NULL);
ZT_UNIT_ASSERT_NOT_EQUAL(test, table->pools, NULL);
for (i = 0; network_tests[i].addr != NULL; i++) {
zt_ipv4_node *node = NULL;
node = zt_ipv4_tbl_add_frm_str(table, network_tests[i].addr);
ZT_UNIT_ASSERT_NOT_EQUAL(test, node, NULL);
ZT_UNIT_ASSERT_NOT_EQUAL(test, node->addr, NULL);
ZT_UNIT_ASSERT_EQUAL(test, node->next, NULL);
ZT_UNIT_ASSERT_EQUAL(test, node->addr->addr,
network_tests[i].start);
ZT_UNIT_ASSERT_EQUAL(test, node->addr->broadcast,
network_tests[i].end);
ZT_UNIT_ASSERT_EQUAL(test, node->addr->bitlen,
network_tests[i].bitlen);
}
return table;
}
static void
positive_tests(struct zt_unit_test *test, void *data)
{
zt_ipv4_tbl *table = NULL;
int i;
table = test_table_init(test, data);
for (i = 0; tests_good[i].addr != NULL; i++) {
int cmp;
char test_buf[1024];
zt_ipv4_node *matched;
matched = zt_ipv4_tbl_search_from_str(table, tests_good[i].addr);
ZT_UNIT_ASSERT_NOT_EQUAL(test, matched, NULL);
ZT_UNIT_ASSERT_NOT_EQUAL(test, matched->addr, NULL);
snprintf(test_buf, sizeof(test_buf) - 1, "%s/%d",
zt_ipv4_int2ip(matched->addr->addr),
matched->addr->bitlen);
cmp = strcmp(test_buf, tests_good[i].should_match);
ZT_UNIT_ASSERT_EQUAL(test, cmp, 0);
}
return;
}
static void
negative_tests(struct zt_unit_test *test, void *data)
{
zt_ipv4_tbl *table = NULL;
int count = 0;
const char *str;
table = test_table_init(test, data);
while ((str = tests_bad[count++])) {
zt_ipv4_node *matched;
if (str == NULL) {
break;
}
matched = zt_ipv4_tbl_search_from_str(table, str);
ZT_UNIT_ASSERT_EQUAL(test, matched, NULL);
}
return;
}
static void
helper_tests(struct zt_unit_test *test UNUSED, void *data UNUSED)
{
return;
}
int
register_ipv4_tbl_suite(struct zt_unit *unit)
{
struct zt_unit_suite *suite;
suite = zt_unit_register_suite(unit, "ipv4_tbl tests",
NULL, NULL, NULL);
zt_unit_register_test(suite, "helper tests", helper_tests);
zt_unit_register_test(suite, "positive match tests", positive_tests);
zt_unit_register_test(suite, "negative match tests", negative_tests);
return 0;
}
|
88 | ./libzt/tests/set_test.c | #include <string.h>
#define ZT_WITH_UNIT
#include <zt.h>
ssize_t values0_19[] = {
0, 1, 2, 3, 4, 5,
6, 7, 8, 9, 10,
11, 12, 13, 14, 15,
16, 17, 18, 19
};
char * valuesA_Z[] = {
"a", "b", "c", "d", "e", "f", "g", "h", "i", "j", "k", "l", "m",
"n", "o", "p", "q", "r", "s", "t", "u", "v", "w", "x", "y", "z",
};
#define MAX_LEN (int)sizeof_array(values0_19)
#define MAX_STR_LEN (int)sizeof_array(valuesA_Z)
ssize_t values0_19_fill[MAX_LEN + 1];
char * valuesA_Z_fill[MAX_STR_LEN + 1];
static int union_test_int(void *data, void *param)
{
struct zt_unit_test * test = (struct zt_unit_test *)param;
ssize_t result = (intptr_t)data;
ZT_UNIT_ASSERT(test, values0_19_fill[result] == 0);
values0_19_fill[result] = result;
return 0;
}
static int intersection_test_int(void *data, void *param)
{
struct zt_unit_test * test = (struct zt_unit_test *)param;
ssize_t result = (intptr_t)data;
ZT_UNIT_ASSERT(test, (values0_19_fill[result] == 0) &&
result >= MAX_LEN / 2);
values0_19_fill[result] = result;
return 0;
}
static int difference_test_int(void *data, void *param)
{
struct zt_unit_test * test = (struct zt_unit_test *)param;
ssize_t result = (intptr_t)data;
ZT_UNIT_ASSERT(test, (values0_19_fill[result] == 0) &&
result < MAX_LEN / 2);
values0_19_fill[result] = result;
return 0;
}
static int union_test_str(void *data, void *param)
{
struct zt_unit_test * test = (struct zt_unit_test *)param;
int result = *(char *)data;
result -= 97;
ZT_UNIT_ASSERT(test, valuesA_Z_fill[result] == 0);
valuesA_Z_fill[result] = (char *)data;
return 0;
}
static int intersection_test_str(void *data, void *param)
{
struct zt_unit_test * test = (struct zt_unit_test *)param;
int result = *(char *)data;
result -= 97;
ZT_UNIT_ASSERT(test,
(valuesA_Z_fill[result] == 0) &&
result >= MAX_STR_LEN / 2);
valuesA_Z_fill[result] = (char *)data;
return 0;
}
static int difference_test_str(void *data, void *param)
{
struct zt_unit_test * test = (struct zt_unit_test *)param;
int result = *(char *)data;
result -= 97;
ZT_UNIT_ASSERT(test,
(valuesA_Z_fill[result] == NULL) &&
result < MAX_STR_LEN / 2);
valuesA_Z_fill[result] = (char *)data;
return 0;
}
static void
basic_tests(struct zt_unit_test *test, void *data UNUSED)
{
int i;
zt_set * result;
zt_set * set1;
zt_set * set2;
set1 = zt_set_init(zt_table_compare_int, NULL, NULL);
set2 = zt_set_init(zt_table_compare_int, NULL, NULL);
for (i = 0; i < MAX_LEN; i++) {
zt_set_insert(set1, (void *)values0_19[i], sizeof(values0_19[i]));
if (i >= MAX_LEN / 2) {
zt_set_insert(set2, (void *)values0_19[i], sizeof(values0_19[i]));
}
}
memset(values0_19_fill, 0, sizeof(values0_19_fill));
result = zt_set_init(zt_table_compare_int, NULL, NULL);
zt_set_union(result, set1, set2);
zt_set_for_each(result, union_test_int, test);
zt_set_destroy(result);
memset(values0_19_fill, 0, sizeof(values0_19_fill));
result = zt_set_init(zt_table_compare_int, NULL, NULL);
zt_set_intersection(result, set1, set2);
zt_set_for_each(result, intersection_test_int, test);
zt_set_destroy(result);
memset(values0_19_fill, 0, sizeof(values0_19_fill));
result = zt_set_init(zt_table_compare_int, NULL, NULL);
zt_set_difference(result, set1, set2);
zt_set_for_each(result, difference_test_int, test);
zt_set_destroy(result);
ZT_UNIT_ASSERT(test, zt_set_is_member(set1, (void *)values0_19[0], sizeof(values0_19[0])));
ZT_UNIT_ASSERT(test, zt_set_is_subset(set2, set1));
ZT_UNIT_ASSERT(test, zt_set_is_subset(set1, set2) == 0);
ZT_UNIT_ASSERT(test, zt_set_is_equal(set1, set1));
ZT_UNIT_ASSERT(test, zt_set_is_equal(set2, set2));
ZT_UNIT_ASSERT(test, zt_set_is_equal(set1, set2) == 0);
ZT_UNIT_ASSERT(test, zt_set_is_equal(set2, set1) == 0);
zt_set_destroy(set1);
zt_set_destroy(set2);
set1 = zt_set_init(zt_table_compare_string, NULL, NULL);
set2 = zt_set_init(zt_table_compare_string, NULL, NULL);
for (i = 0; i < MAX_STR_LEN; i++) {
zt_set_insert(set1, (void *)valuesA_Z[i], strlen(valuesA_Z[i]));
if (i >= MAX_STR_LEN / 2) {
zt_set_insert(set2, (void *)valuesA_Z[i], strlen(valuesA_Z[i]));
}
}
ZT_UNIT_ASSERT(test, zt_set_is_subset(set2, set1));
ZT_UNIT_ASSERT(test, zt_set_is_subset(set1, set2) == 0);
ZT_UNIT_ASSERT(test, zt_set_is_equal(set1, set1));
ZT_UNIT_ASSERT(test, zt_set_is_equal(set2, set2));
ZT_UNIT_ASSERT(test, zt_set_is_equal(set1, set2) == 0);
ZT_UNIT_ASSERT(test, zt_set_is_equal(set2, set1) == 0);
memset(valuesA_Z_fill, 0, sizeof(valuesA_Z_fill));
result = zt_set_init(zt_table_compare_string, NULL, NULL);
zt_set_union(result, set1, set2);
zt_set_for_each(result, union_test_str, test);
zt_set_destroy(result);
memset(valuesA_Z_fill, 0, sizeof(valuesA_Z_fill));
result = zt_set_init(zt_table_compare_string, NULL, NULL);
zt_set_intersection(result, set1, set2);
zt_set_for_each(result, intersection_test_str, test);
zt_set_destroy(result);
memset(valuesA_Z_fill, 0, sizeof(valuesA_Z_fill));
result = zt_set_init(zt_table_compare_string, NULL, NULL);
zt_set_difference(result, set1, set2);
zt_set_for_each(result, difference_test_str, test);
zt_set_destroy(result);
zt_set_destroy(set1);
zt_set_destroy(set2);
} /* basic_tests */
int
register_set_suite(struct zt_unit *unit)
{
struct zt_unit_suite * suite;
suite = zt_unit_register_suite(unit, "set tests", NULL, NULL, NULL);
zt_unit_register_test(suite, "basic", basic_tests);
return 0;
}
|
89 | ./libzt/tests/sha1_test.c | /*
* sha1_test.c test assertions
*
* Copyright (C) 2008, Jason L. Shiffer <jshiffer@zerotao.org>. All Rights Reserved.
* See file COPYING for details.
*
*/
/*
* Description:
*/
#ifdef HAVE_CONFIG_H
# include "zt_config.h"
#endif /* HAVE_CONFIG_H */
#ifdef HAVE_STRING_H
# include <string.h>
#endif /* HAVE_STRING_H */
#define ZT_WITH_UNIT
#include <zt.h>
static void
basic_tests(struct zt_unit_test *test, void *data UNUSED)
{
/* get rid of the log message for the moment */
char * tdata[] = { "abc",
"abcdbcdecdefdefgefghfghighijhijkijkljklmklmnlmnomnopnopq",
"http://www.google.com" };
char * results[] = { "a9993e364706816aba3e25717850c26c9cd0d89d",
"84983e441c3bd26ebaae4aa1f95129e5e54670f1",
"738ddf35b3a85a7a6ba7b232bd3d5f1e4d284ad1" };
uint8_t digest[20];
uint8_t digest2[20];
char sha1[41];
int i;
zt_sha1_ctx ctx;
for (i = 0; i < (int)sizeof_array(tdata); i++) {
zt_sha1_data(tdata[i], strlen(tdata[i]), digest);
zt_sha1_tostr(digest, sha1);
ZT_UNIT_ASSERT(test, strncmp(results[i], sha1, 40) == 0);
}
zt_sha1_init(&ctx);
for (i = 0; i < 1000000; i++) {
zt_sha1_update(&ctx, (uint8_t *)"a", 1);
}
zt_sha1_finalize(&ctx, digest);
zt_sha1_tostr(digest, sha1);
ZT_UNIT_ASSERT(test, strncmp(sha1, "34aa973cd4c4daa4f61eeb2bdbad27316534016f", 40) == 0);
memset(digest2, 0, 20);
zt_str_tosha1(sha1, digest2);
/* printf("%20s %20s\n", digest2, digest); */
ZT_UNIT_ASSERT(test, memcmp(digest2, digest, 20) == 0);
}
int
register_sha1_suite(struct zt_unit *unit)
{
struct zt_unit_suite * suite;
suite = zt_unit_register_suite(unit, "sha1 tests", NULL, NULL, NULL);
zt_unit_register_test(suite, "basic", basic_tests);
return 0;
}
|
90 | ./libzt/tests/int_test.c |
#ifdef HAVE_CONFIG_H
# include <zt_config.h> /* for zt_int.h */
#endif /* HAVE_CONFIG_H */
#define ZT_WITH_UNIT
#include <zt.h>
static void
test_case_signed_add(struct zt_unit_test *test, void *data UNUSED)
{
/* CHAR pos common */
/* ZT_UNIT_ASSERT_RAISES(test, zt_exception.math.overflow, zt_char_add(CHAR_MAX, 1)); */
/* ZT_UNIT_ASSERT_RAISES(test, zt_exception.math.overflow, zt_char_add(1, CHAR_MAX)); */
/* CHAR neg common */
/* ZT_UNIT_ASSERT_RAISES(test, zt_exception.math.overflow, zt_char_add(CHAR_MIN, -1)); */
/* ZT_UNIT_ASSERT_RAISES(test, zt_exception.math.overflow, zt_char_add(-1, CHAR_MIN)); */
/* CHAR limits */
ZT_UNIT_ASSERT(test, zt_char_add(CHAR_MIN, 1) == CHAR_MIN + 1);
ZT_UNIT_ASSERT(test, zt_char_add(1, CHAR_MIN) == CHAR_MIN + 1);
ZT_UNIT_ASSERT(test, zt_char_add(CHAR_MAX, -1) == CHAR_MAX - 1);
ZT_UNIT_ASSERT(test, zt_char_add(-1, CHAR_MAX) == CHAR_MAX - 1);
/* CHAR middle */
ZT_UNIT_ASSERT(test, zt_char_add(CHAR_MAX / 2, 1) == CHAR_MAX / 2 + 1);
ZT_UNIT_ASSERT(test, zt_char_add(1, CHAR_MAX / 2) == CHAR_MAX / 2 + 1);
/* SHORT pos common */
/* ZT_UNIT_ASSERT_RAISES(test, zt_exception.math.overflow, zt_short_add(SHORT_MAX, 1)); */
/* ZT_UNIT_ASSERT_RAISES(test, zt_exception.math.overflow, zt_short_add(1, SHORT_MAX)); */
/* SHORT neg common */
/* ZT_UNIT_ASSERT_RAISES(test, zt_exception.math.overflow, zt_short_add(SHORT_MIN, -1)); */
/* ZT_UNIT_ASSERT_RAISES(test, zt_exception.math.overflow, zt_short_add(-1, SHORT_MIN)); */
/* SHORT limits */
ZT_UNIT_ASSERT(test, zt_short_add(SHORT_MIN, 1) == SHORT_MIN + 1);
ZT_UNIT_ASSERT(test, zt_short_add(1, SHORT_MIN) == SHORT_MIN + 1);
ZT_UNIT_ASSERT(test, zt_short_add(SHORT_MAX, -1) == SHORT_MAX - 1);
ZT_UNIT_ASSERT(test, zt_short_add(-1, SHORT_MAX) == SHORT_MAX - 1);
/* SHORT middle */
ZT_UNIT_ASSERT(test, zt_short_add(SHORT_MAX / 2, 1) == SHORT_MAX / 2 + 1);
ZT_UNIT_ASSERT(test, zt_short_add(1, SHORT_MAX / 2) == SHORT_MAX / 2 + 1);
/* INT pos common */
/* ZT_UNIT_ASSERT_RAISES(test, zt_exception.math.overflow, zt_int_add(INT_MAX, 1)); */
/* ZT_UNIT_ASSERT_RAISES(test, zt_exception.math.overflow, zt_int_add(1, INT_MAX)); */
/* INT neg common */
/* ZT_UNIT_ASSERT_RAISES(test, zt_exception.math.overflow, zt_int_add(INT_MIN, -1)); */
/* ZT_UNIT_ASSERT_RAISES(test, zt_exception.math.overflow, zt_int_add(-1, INT_MIN)); */
/* INT limits */
ZT_UNIT_ASSERT(test, zt_int_add(INT_MIN, 1) == INT_MIN + 1);
ZT_UNIT_ASSERT(test, zt_int_add(1, INT_MIN) == INT_MIN + 1);
ZT_UNIT_ASSERT(test, zt_int_add(INT_MAX, -1) == INT_MAX - 1);
ZT_UNIT_ASSERT(test, zt_int_add(-1, INT_MAX) == INT_MAX - 1);
/* INT middle */
ZT_UNIT_ASSERT(test, zt_int_add(INT_MAX / 2, 1) == INT_MAX / 2 + 1);
ZT_UNIT_ASSERT(test, zt_int_add(1, INT_MAX / 2) == INT_MAX / 2 + 1);
# ifndef __x86_64__
/* LONG pos common */
/* ZT_UNIT_ASSERT_RAISES(test, zt_exception.math.overflow, zt_long_add(LONG_MAX, 0L)); */
/* ZT_UNIT_ASSERT_RAISES(test, zt_exception.math.overflow, zt_long_add(1L, LONG_MAX)); */
/* LONG neg common */
/* ZT_UNIT_ASSERT_RAISES(test, zt_exception.math.overflow, zt_long_add(LONG_MIN, -1L)); */
/* ZT_UNIT_ASSERT_RAISES(test, zt_exception.math.overflow, zt_long_add(-1L, LONG_MIN)); */
/* LONG limits */
ZT_UNIT_ASSERT(test, zt_long_add(LONG_MIN, 1L) == LONG_MIN + 1L);
ZT_UNIT_ASSERT(test, zt_long_add(1L, LONG_MIN) == LONG_MIN + 1L);
ZT_UNIT_ASSERT(test, zt_long_add(LONG_MAX, -1L) == LONG_MAX - 1L);
ZT_UNIT_ASSERT(test, zt_long_add(-1L, LONG_MAX) == LONG_MAX - 1L);
/* LONG middle */
ZT_UNIT_ASSERT(test, zt_long_add(LONG_MAX / 2, 1) == LONG_MAX / 2 + 1);
ZT_UNIT_ASSERT(test, zt_long_add(1, LONG_MAX / 2) == LONG_MAX / 2 + 1);
# endif /* ifndef __x86_64__ */
} /* test_case_signed_add */
static void
test_case_unsigned_add(struct zt_unit_test *test, void *data UNUSED)
{
/* UCHAR pos common */
/* ZT_UNIT_ASSERT_RAISES(test, zt_exception.math.overflow, zt_uchar_add(UCHAR_MAX, 1)); */
/* ZT_UNIT_ASSERT_RAISES(test, zt_exception.math.overflow, zt_uchar_add(1, UCHAR_MAX)); */
/* UCHAR neg common */
ZT_UNIT_ASSERT(test, zt_uchar_add(UCHAR_MIN, -1) == UCHAR_MAX);
ZT_UNIT_ASSERT(test, zt_uchar_add(-1, UCHAR_MIN) == UCHAR_MAX);
/* UCHAR limits */
ZT_UNIT_ASSERT(test, zt_uchar_add(UCHAR_MIN, 1) == UCHAR_MIN + 1);
ZT_UNIT_ASSERT(test, zt_uchar_add(1, UCHAR_MIN) == UCHAR_MIN + 1);
/* ZT_UNIT_ASSERT_RAISES(test, zt_exception.math.overflow, zt_uchar_add(UCHAR_MAX, -1)); */
/* ZT_UNIT_ASSERT_RAISES(test, zt_exception.math.overflow, zt_uchar_add(-1, UCHAR_MAX)); */
/* UCHAR middle */
ZT_UNIT_ASSERT(test, zt_uchar_add(UCHAR_MAX / 2, 1) == UCHAR_MAX / 2 + 1);
ZT_UNIT_ASSERT(test, zt_uchar_add(1, UCHAR_MAX / 2) == UCHAR_MAX / 2 + 1);
/* USHORT pos common */
/* ZT_UNIT_ASSERT_RAISES(test, zt_exception.math.overflow, zt_ushort_add(USHORT_MAX, 1)); */
/* ZT_UNIT_ASSERT_RAISES(test, zt_exception.math.overflow, zt_ushort_add(1, USHORT_MAX)); */
/* USHORT neg common */
ZT_UNIT_ASSERT(test, zt_ushort_add(USHORT_MIN, -1) == USHORT_MAX);
ZT_UNIT_ASSERT(test, zt_ushort_add(-1, USHORT_MIN) == USHORT_MAX);
/* USHORT limits */
ZT_UNIT_ASSERT(test, zt_ushort_add(USHORT_MIN, 1) == USHORT_MIN + 1);
ZT_UNIT_ASSERT(test, zt_ushort_add(1, USHORT_MIN) == USHORT_MIN + 1);
/* ZT_UNIT_ASSERT_RAISES(test, zt_exception.math.overflow, zt_ushort_add(USHORT_MAX, -1)); */
/* ZT_UNIT_ASSERT_RAISES(test, zt_exception.math.overflow, zt_ushort_add(-1, USHORT_MAX)); */
/* USHORT middle */
ZT_UNIT_ASSERT(test, zt_ushort_add(USHORT_MAX / 2, 1) == USHORT_MAX / 2 + 1);
ZT_UNIT_ASSERT(test, zt_ushort_add(1, USHORT_MAX / 2) == USHORT_MAX / 2 + 1);
/* UINT pos common */
/* ZT_UNIT_ASSERT_RAISES(test, zt_exception.math.overflow, zt_uint_add(UINT_MAX, 1)); */
/* ZT_UNIT_ASSERT_RAISES(test, zt_exception.math.overflow, zt_uint_add(1, UINT_MAX)); */
/* UINT neg common */
ZT_UNIT_ASSERT(test, zt_uint_add(UINT_MIN, -1) == UINT_MAX);
ZT_UNIT_ASSERT(test, zt_uint_add(-1, UINT_MIN) == UINT_MAX);
/* UINT limits */
ZT_UNIT_ASSERT(test, zt_uint_add(UINT_MIN, 1) == UINT_MIN + 1);
ZT_UNIT_ASSERT(test, zt_uint_add(1, UINT_MIN) == UINT_MIN + 1);
/* ZT_UNIT_ASSERT_RAISES(test, zt_exception.math.overflow, zt_uint_add(UINT_MAX, -1)); */
/* ZT_UNIT_ASSERT_RAISES(test, zt_exception.math.overflow, zt_uint_add(-1, UINT_MAX)); */
/* UINT middle */
ZT_UNIT_ASSERT(test, zt_uint_add(UINT_MAX / 2, 1) == UINT_MAX / 2 + 1);
ZT_UNIT_ASSERT(test, zt_uint_add(1, UINT_MAX / 2) == UINT_MAX / 2 + 1);
# ifndef __x86_64__
/* ULONG pos common */
/* ZT_UNIT_ASSERT_RAISES(test, zt_exception.math.overflow, zt_ulong_add(ULONG_MAX, 1)); */
/* ZT_UNIT_ASSERT_RAISES(test, zt_exception.math.overflow, zt_ulong_add(1, ULONG_MAX)); */
/* ULONG neg common */
ZT_UNIT_ASSERT(test, zt_ulong_add(ULONG_MIN, -1) == ULONG_MAX);
ZT_UNIT_ASSERT(test, zt_ulong_add(-1, ULONG_MIN) == ULONG_MAX);
/* ULONG limits */
ZT_UNIT_ASSERT(test, zt_ulong_add(ULONG_MIN, 1) == ULONG_MIN + 1);
ZT_UNIT_ASSERT(test, zt_ulong_add(1, ULONG_MIN) == ULONG_MIN + 1);
/* ZT_UNIT_ASSERT_RAISES(test, zt_exception.math.overflow, zt_ulong_add(ULONG_MAX, -1)); */
/* ZT_UNIT_ASSERT_RAISES(test, zt_exception.math.overflow, zt_ulong_add(-1, ULONG_MAX)); */
/* ULONG middle */
ZT_UNIT_ASSERT(test, zt_ulong_add(ULONG_MAX / 2, 1) == ULONG_MAX / 2 + 1);
ZT_UNIT_ASSERT(test, zt_ulong_add(1, ULONG_MAX / 2) == ULONG_MAX / 2 + 1);
# endif /* ifndef __x86_64__ */
} /* test_case_unsigned_add */
static void
test_case_signed_sub(struct zt_unit_test *test, void *data UNUSED)
{
/* subtraction overflow */
ZT_UNIT_ASSERT(test, zt_char_sub(CHAR_MAX, 1) == CHAR_MAX - 1);
ZT_UNIT_ASSERT(test, zt_char_sub(1, CHAR_MAX) == 1 - CHAR_MAX);
ZT_UNIT_ASSERT(test, zt_char_sub(CHAR_MIN, -1) == CHAR_MIN - -1);
ZT_UNIT_ASSERT(test, zt_char_sub(-1, CHAR_MIN) == -1 - CHAR_MIN);
ZT_UNIT_ASSERT(test, zt_char_sub(CHAR_MAX / 2, 1) == (CHAR_MAX / 2) - 1);
ZT_UNIT_ASSERT(test, zt_char_sub(1, CHAR_MAX / 2) == 1 - (CHAR_MAX / 2));
/* ZT_UNIT_ASSERT_RAISES(test, zt_exception.math.overflow, zt_char_sub(CHAR_MIN, 1)); */
/* ZT_UNIT_ASSERT_RAISES(test, zt_exception.math.overflow, zt_char_sub(1, CHAR_MIN)); */
ZT_UNIT_ASSERT(test, zt_short_sub(SHORT_MAX, 1) == SHORT_MAX - 1);
ZT_UNIT_ASSERT(test, zt_short_sub(1, SHORT_MAX) == 1 - SHORT_MAX);
ZT_UNIT_ASSERT(test, zt_short_sub(SHORT_MIN, -1) == SHORT_MIN - -1);
ZT_UNIT_ASSERT(test, zt_short_sub(-1, SHORT_MIN) == -1 - SHORT_MIN);
ZT_UNIT_ASSERT(test, zt_short_sub(SHORT_MAX / 2, 1) == (SHORT_MAX / 2) - 1);
ZT_UNIT_ASSERT(test, zt_short_sub(1, SHORT_MAX / 2) == 1 - (SHORT_MAX / 2));
/* ZT_UNIT_ASSERT_RAISES(test, zt_exception.math.overflow, zt_short_sub(SHORT_MIN, 1)); */
/* ZT_UNIT_ASSERT_RAISES(test, zt_exception.math.overflow, zt_short_sub(1, SHORT_MIN)); */
ZT_UNIT_ASSERT(test, zt_int_sub(INT_MAX, 1) == INT_MAX - 1);
ZT_UNIT_ASSERT(test, zt_int_sub(1, INT_MAX) == 1 - INT_MAX);
ZT_UNIT_ASSERT(test, zt_int_sub(INT_MIN, -1) == INT_MIN - -1);
ZT_UNIT_ASSERT(test, zt_int_sub(-1, INT_MIN) == -1 - INT_MIN);
ZT_UNIT_ASSERT(test, zt_int_sub(INT_MAX / 2, 1) == (INT_MAX / 2) - 1);
ZT_UNIT_ASSERT(test, zt_int_sub(1, INT_MAX / 2) == 1 - (INT_MAX / 2));
/* ZT_UNIT_ASSERT_RAISES(test, zt_exception.math.overflow, zt_int_sub(INT_MIN, 1)); */
/* ZT_UNIT_ASSERT_RAISES(test, zt_exception.math.overflow, zt_int_sub(1, INT_MIN)); */
# ifndef __x86_64__
ZT_UNIT_ASSERT(test, zt_long_sub(LONG_MAX, 1) == LONG_MAX - 1);
ZT_UNIT_ASSERT(test, zt_long_sub(1, LONG_MAX) == 1 - LONG_MAX);
ZT_UNIT_ASSERT(test, zt_long_sub(LONG_MIN, -1) == LONG_MIN - -1);
ZT_UNIT_ASSERT(test, zt_long_sub(-1, LONG_MIN) == -1 - LONG_MIN);
ZT_UNIT_ASSERT(test, zt_long_sub(LONG_MAX / 2, 1) == (LONG_MAX / 2) - 1);
ZT_UNIT_ASSERT(test, zt_long_sub(1, LONG_MAX / 2) == 1 - (LONG_MAX / 2));
/* ZT_UNIT_ASSERT_RAISES(test, zt_exception.math.overflow, zt_long_sub(LONG_MIN, 1)); */
/* ZT_UNIT_ASSERT_RAISES(test, zt_exception.math.overflow, zt_long_sub(1, LONG_MIN)); */
# endif /* ifndef __x86_64__ */
} /* test_case_signed_sub */
static void
test_case_unsigned_sub(struct zt_unit_test *test, void *data UNUSED)
{
/* unsigned subtraction */
ZT_UNIT_ASSERT(test, zt_uchar_sub(UCHAR_MAX, 1) == UCHAR_MAX - 1);
/* ZT_UNIT_ASSERT_RAISES(test, zt_exception.math.overflow, zt_uchar_sub(1, UCHAR_MAX)); */
/* ZT_UNIT_ASSERT_RAISES(test, zt_exception.math.overflow, zt_uchar_sub(UCHAR_MIN, 1)); */
ZT_UNIT_ASSERT(test, zt_uchar_sub(UCHAR_MAX / 2, 1) == (UCHAR_MAX / 2) - 1);
/* ZT_UNIT_ASSERT_RAISES(test, zt_exception.math.overflow, zt_uchar_sub(1, UCHAR_MAX / 2)); */
/* ZT_UNIT_ASSERT_RAISES(test, zt_exception.math.overflow, zt_uchar_sub(UCHAR_MIN, 1)); */
ZT_UNIT_ASSERT(test, zt_uchar_sub(1, UCHAR_MIN) == 1 - UCHAR_MIN);
ZT_UNIT_ASSERT(test, zt_ushort_sub(USHORT_MAX, 1) == USHORT_MAX - 1);
/* ZT_UNIT_ASSERT_RAISES(test, zt_exception.math.overflow, zt_ushort_sub(1, USHORT_MAX)); */
/* ZT_UNIT_ASSERT_RAISES(test, zt_exception.math.overflow, zt_ushort_sub(USHORT_MIN, 1)); */
ZT_UNIT_ASSERT(test, zt_ushort_sub(USHORT_MAX / 2, 1) == (USHORT_MAX / 2) - 1);
/* ZT_UNIT_ASSERT_RAISES(test, zt_exception.math.overflow, zt_ushort_sub(1, USHORT_MAX / 2)); */
/* ZT_UNIT_ASSERT_RAISES(test, zt_exception.math.overflow, zt_ushort_sub(USHORT_MIN, 1)); */
ZT_UNIT_ASSERT(test, zt_ushort_sub(1, USHORT_MIN) == 1 - USHORT_MIN);
ZT_UNIT_ASSERT(test, zt_uint_sub(UINT_MAX, 1) == UINT_MAX - 1);
/* ZT_UNIT_ASSERT_RAISES(test, zt_exception.math.overflow, zt_uint_sub(1, UINT_MAX)); */
/* ZT_UNIT_ASSERT_RAISES(test, zt_exception.math.overflow, zt_uint_sub(UINT_MIN, 1)); */
ZT_UNIT_ASSERT(test, zt_uint_sub(UINT_MAX / 2, 1) == (UINT_MAX / 2) - 1);
/* ZT_UNIT_ASSERT_RAISES(test, zt_exception.math.overflow, zt_uint_sub(1, UINT_MAX / 2)); */
/* ZT_UNIT_ASSERT_RAISES(test, zt_exception.math.overflow, zt_uint_sub(UINT_MIN, 1)); */
ZT_UNIT_ASSERT(test, zt_uint_sub(1, UINT_MIN) == 1 - UINT_MIN);
# ifndef __x86_64__
ZT_UNIT_ASSERT(test, zt_ulong_sub(ULONG_MAX, 1) == ULONG_MAX - 1);
/* ZT_UNIT_ASSERT_RAISES(test, zt_exception.math.overflow, zt_ulong_sub(1, ULONG_MAX)); */
/* ZT_UNIT_ASSERT_RAISES(test, zt_exception.math.overflow, zt_ulong_sub(ULONG_MIN, 1)); */
ZT_UNIT_ASSERT(test, zt_ulong_sub(ULONG_MAX / 2, 1) == (ULONG_MAX / 2) - 1);
/* ZT_UNIT_ASSERT_RAISES(test, zt_exception.math.overflow, zt_ulong_sub(1, ULONG_MAX / 2)); */
/* ZT_UNIT_ASSERT_RAISES(test, zt_exception.math.overflow, zt_ulong_sub(ULONG_MIN, 1)); */
ZT_UNIT_ASSERT(test, zt_ulong_sub(1, ULONG_MIN) == 1 - ULONG_MIN);
# endif /* ifndef __x86_64__ */
} /* test_case_unsigned_sub */
static void
test_case_signed_mul(struct zt_unit_test *test, void *data UNUSED)
{
/* char */
ZT_UNIT_ASSERT(test, zt_char_mul(1, CHAR_MAX) == CHAR_MAX);
ZT_UNIT_ASSERT(test, zt_char_mul(CHAR_MAX, 1) == CHAR_MAX);
ZT_UNIT_ASSERT(test, zt_char_mul(-1, CHAR_MAX) == -CHAR_MAX);
ZT_UNIT_ASSERT(test, zt_char_mul(CHAR_MAX, -1) == -CHAR_MAX);
ZT_UNIT_ASSERT(test, zt_char_mul(1, CHAR_MIN) == CHAR_MIN);
ZT_UNIT_ASSERT(test, zt_char_mul(CHAR_MIN, 1) == CHAR_MIN);
/* ZT_UNIT_ASSERT_RAISES(test, zt_exception.math.overflow, zt_char_mul(-1, CHAR_MIN)); */
/* ZT_UNIT_ASSERT_RAISES(test, zt_exception.math.overflow, zt_char_mul(CHAR_MIN, -1)); */
ZT_UNIT_ASSERT(test, zt_char_mul(2, CHAR_MAX / 2) == CHAR_MAX - 1);
ZT_UNIT_ASSERT(test, zt_char_mul(CHAR_MAX / 2, 2) == CHAR_MAX - 1);
/* ZT_UNIT_ASSERT_RAISES(test, zt_exception.math.overflow, zt_char_mul(2, CHAR_MAX)); */
/* ZT_UNIT_ASSERT_RAISES(test, zt_exception.math.overflow, zt_char_mul(CHAR_MAX, 2)); */
/* short */
ZT_UNIT_ASSERT(test, zt_short_mul(1, SHORT_MAX) == SHORT_MAX);
ZT_UNIT_ASSERT(test, zt_short_mul(SHORT_MAX, 1) == SHORT_MAX);
ZT_UNIT_ASSERT(test, zt_short_mul(-1, SHORT_MAX) == -SHORT_MAX);
ZT_UNIT_ASSERT(test, zt_short_mul(SHORT_MAX, -1) == -SHORT_MAX);
ZT_UNIT_ASSERT(test, zt_short_mul(1, SHORT_MIN) == SHORT_MIN);
ZT_UNIT_ASSERT(test, zt_short_mul(SHORT_MIN, 1) == SHORT_MIN);
/* ZT_UNIT_ASSERT_RAISES(test, zt_exception.math.overflow, zt_short_mul(-1, SHORT_MIN)); */
/* ZT_UNIT_ASSERT_RAISES(test, zt_exception.math.overflow, zt_short_mul(SHORT_MIN, -1)); */
ZT_UNIT_ASSERT(test, zt_short_mul(2, SHORT_MAX / 2) == SHORT_MAX - 1);
ZT_UNIT_ASSERT(test, zt_short_mul(SHORT_MAX / 2, 2) == SHORT_MAX - 1);
/* ZT_UNIT_ASSERT_RAISES(test, zt_exception.math.overflow, zt_short_mul(2, SHORT_MAX)); */
/* ZT_UNIT_ASSERT_RAISES(test, zt_exception.math.overflow, zt_short_mul(SHORT_MAX, 2)); */
/* integer */
ZT_UNIT_ASSERT(test, zt_int_mul(1, INT_MAX) == INT_MAX);
ZT_UNIT_ASSERT(test, zt_int_mul(INT_MAX, 1) == INT_MAX);
ZT_UNIT_ASSERT(test, zt_int_mul(-1, INT_MAX) == -INT_MAX);
ZT_UNIT_ASSERT(test, zt_int_mul(INT_MAX, -1) == -INT_MAX);
ZT_UNIT_ASSERT(test, zt_int_mul(1, INT_MIN) == INT_MIN);
ZT_UNIT_ASSERT(test, zt_int_mul(INT_MIN, 1) == INT_MIN);
/* ZT_UNIT_ASSERT_RAISES(test, zt_exception.math.overflow, zt_int_mul(-1, INT_MIN)); */
/* ZT_UNIT_ASSERT_RAISES(test, zt_exception.math.overflow, zt_int_mul(INT_MIN, -1)); */
ZT_UNIT_ASSERT(test, zt_int_mul(2, INT_MAX / 2) == INT_MAX - 1);
ZT_UNIT_ASSERT(test, zt_int_mul(INT_MAX / 2, 2) == INT_MAX - 1);
/* ZT_UNIT_ASSERT_RAISES(test, zt_exception.math.overflow, zt_int_mul(2, INT_MAX)); */
/* ZT_UNIT_ASSERT_RAISES(test, zt_exception.math.overflow, zt_int_mul(INT_MAX, 2)); */
/* short */
ZT_UNIT_ASSERT(test, zt_short_mul(1, SHORT_MAX) == SHORT_MAX);
ZT_UNIT_ASSERT(test, zt_short_mul(SHORT_MAX, 1) == SHORT_MAX);
ZT_UNIT_ASSERT(test, zt_short_mul(-1, SHORT_MAX) == -SHORT_MAX);
ZT_UNIT_ASSERT(test, zt_short_mul(SHORT_MAX, -1) == -SHORT_MAX);
ZT_UNIT_ASSERT(test, zt_short_mul(1, SHORT_MIN) == SHORT_MIN);
ZT_UNIT_ASSERT(test, zt_short_mul(SHORT_MIN, 1) == SHORT_MIN);
/* ZT_UNIT_ASSERT_RAISES(test, zt_exception.math.overflow, zt_short_mul(-1, SHORT_MIN)); */
/* ZT_UNIT_ASSERT_RAISES(test, zt_exception.math.overflow, zt_short_mul(SHORT_MIN, -1)); */
ZT_UNIT_ASSERT(test, zt_short_mul(2, SHORT_MAX / 2) == SHORT_MAX - 1);
ZT_UNIT_ASSERT(test, zt_short_mul(SHORT_MAX / 2, 2) == SHORT_MAX - 1);
/* ZT_UNIT_ASSERT_RAISES(test, zt_exception.math.overflow, zt_short_mul(2, SHORT_MAX)); */
/* ZT_UNIT_ASSERT_RAISES(test, zt_exception.math.overflow, zt_short_mul(SHORT_MAX, 2)); */
} /* test_case_signed_mul */
static void
test_case_unsigned_mul(struct zt_unit_test *test, void *data UNUSED)
{
/* unsigned multiplication */
/* char */
ZT_UNIT_ASSERT(test, zt_uchar_mul(1, UCHAR_MAX) == UCHAR_MAX);
ZT_UNIT_ASSERT(test, zt_uchar_mul(UCHAR_MAX, 1) == UCHAR_MAX);
ZT_UNIT_ASSERT(test, zt_uchar_mul(1, UCHAR_MIN) == UCHAR_MIN);
ZT_UNIT_ASSERT(test, zt_uchar_mul(UCHAR_MIN, 1) == UCHAR_MIN);
ZT_UNIT_ASSERT(test, zt_uchar_mul(2, UCHAR_MAX / 2) == UCHAR_MAX - 1);
ZT_UNIT_ASSERT(test, zt_uchar_mul(UCHAR_MAX / 2, 2) == UCHAR_MAX - 1);
/* ZT_UNIT_ASSERT_RAISES(test, zt_exception.math.overflow, zt_uchar_mul(2, UCHAR_MAX)); */
/* ZT_UNIT_ASSERT_RAISES(test, zt_exception.math.overflow, zt_uchar_mul(UCHAR_MAX, 2)); */
/* ZT_UNIT_ASSERT_RAISES(test, zt_exception.math.overflow, zt_uchar_mul(2, UCHAR_MAX / 2 + 1)); */
/* ZT_UNIT_ASSERT_RAISES(test, zt_exception.math.overflow, zt_uchar_mul(UCHAR_MAX / 2 + 1, 2)); */
/* short */
ZT_UNIT_ASSERT(test, zt_ushort_mul(1, USHORT_MAX) == USHORT_MAX);
ZT_UNIT_ASSERT(test, zt_ushort_mul(USHORT_MAX, 1) == USHORT_MAX);
ZT_UNIT_ASSERT(test, zt_ushort_mul(1, USHORT_MIN) == USHORT_MIN);
ZT_UNIT_ASSERT(test, zt_ushort_mul(USHORT_MIN, 1) == USHORT_MIN);
ZT_UNIT_ASSERT(test, zt_ushort_mul(2, USHORT_MAX / 2) == USHORT_MAX - 1);
ZT_UNIT_ASSERT(test, zt_ushort_mul(USHORT_MAX / 2, 2) == USHORT_MAX - 1);
/* ZT_UNIT_ASSERT_RAISES(test, zt_exception.math.overflow, zt_ushort_mul(2, USHORT_MAX)); */
/* ZT_UNIT_ASSERT_RAISES(test, zt_exception.math.overflow, zt_ushort_mul(USHORT_MAX, 2)); */
/* ZT_UNIT_ASSERT_RAISES(test, zt_exception.math.overflow, zt_ushort_mul(2, USHORT_MAX / 2 + 1)); */
/* ZT_UNIT_ASSERT_RAISES(test, zt_exception.math.overflow, zt_ushort_mul(USHORT_MAX / 2 + 1, 2)); */
/* int */
ZT_UNIT_ASSERT(test, zt_uint_mul(1, UINT_MAX) == UINT_MAX);
ZT_UNIT_ASSERT(test, zt_uint_mul(UINT_MAX, 1) == UINT_MAX);
ZT_UNIT_ASSERT(test, zt_uint_mul(1, UINT_MIN) == UINT_MIN);
ZT_UNIT_ASSERT(test, zt_uint_mul(UINT_MIN, 1) == UINT_MIN);
ZT_UNIT_ASSERT(test, zt_uint_mul(2, UINT_MAX / 2) == UINT_MAX - 1);
ZT_UNIT_ASSERT(test, zt_uint_mul(UINT_MAX / 2, 2) == UINT_MAX - 1);
/* ZT_UNIT_ASSERT_RAISES(test, zt_exception.math.overflow, zt_uint_mul(2, UINT_MAX)); */
/* ZT_UNIT_ASSERT_RAISES(test, zt_exception.math.overflow, zt_uint_mul(UINT_MAX, 2)); */
/* ZT_UNIT_ASSERT_RAISES(test, zt_exception.math.overflow, zt_uint_mul(2, UINT_MAX / 2 + 1)); */
/* ZT_UNIT_ASSERT_RAISES(test, zt_exception.math.overflow, zt_uint_mul(UINT_MAX / 2 + 1, 2)); */
# ifndef __x86_64__
/* long */
ZT_UNIT_ASSERT(test, zt_ulong_mul(1, ULONG_MAX) == ULONG_MAX);
ZT_UNIT_ASSERT(test, zt_ulong_mul(ULONG_MAX, 1) == ULONG_MAX);
ZT_UNIT_ASSERT(test, zt_ulong_mul(1, ULONG_MIN) == ULONG_MIN);
ZT_UNIT_ASSERT(test, zt_ulong_mul(ULONG_MIN, 1) == ULONG_MIN);
ZT_UNIT_ASSERT(test, zt_ulong_mul(2, ULONG_MAX / 2) == ULONG_MAX - 1);
ZT_UNIT_ASSERT(test, zt_ulong_mul(ULONG_MAX / 2, 2) == ULONG_MAX - 1);
/* ZT_UNIT_ASSERT_RAISES(test, zt_exception.math.overflow, zt_ulong_mul(2, ULONG_MAX)); */
/* ZT_UNIT_ASSERT_RAISES(test, zt_exception.math.overflow, zt_ulong_mul(ULONG_MAX, 2)); */
/* ZT_UNIT_ASSERT_RAISES(test, zt_exception.math.overflow, zt_ulong_mul(2, ULONG_MAX / 2 + 1)); */
/* ZT_UNIT_ASSERT_RAISES(test, zt_exception.math.overflow, zt_ulong_mul(ULONG_MAX / 2 + 1, 2)); */
# endif /* ifndef __x86_64__ */
} /* test_case_unsigned_mul */
static void
test_case_signed_div(struct zt_unit_test *test, void *data UNUSED)
{
/* division */
/* char */
ZT_UNIT_ASSERT(test, zt_char_div(1, CHAR_MAX) == 0);
ZT_UNIT_ASSERT(test, zt_char_div(CHAR_MAX, 1) == CHAR_MAX);
ZT_UNIT_ASSERT(test, zt_char_div(1, CHAR_MIN) == 0);
ZT_UNIT_ASSERT(test, zt_char_div(CHAR_MIN, 1) == CHAR_MIN);
ZT_UNIT_ASSERT(test, zt_char_div(0, CHAR_MIN) == 0);
/* ZT_UNIT_ASSERT_RAISES(test, zt_exception.math.divide_by_zero, zt_char_div(CHAR_MAX, 0)); */
ZT_UNIT_ASSERT(test, zt_char_div(CHAR_MAX, 2) == CHAR_MAX / 2);
ZT_UNIT_ASSERT(test, zt_char_div(2, CHAR_MAX) == 2 / CHAR_MAX);
ZT_UNIT_ASSERT(test, zt_char_div(CHAR_MIN, 2) == CHAR_MIN / 2);
ZT_UNIT_ASSERT(test, zt_char_div(2, CHAR_MIN) == 2 / CHAR_MIN);
/* ZT_UNIT_ASSERT_RAISES(test, zt_exception.math.overflow, zt_char_div(CHAR_MIN, -1)); */
/* short */
ZT_UNIT_ASSERT(test, zt_short_div(1, SHORT_MAX) == 0);
ZT_UNIT_ASSERT(test, zt_short_div(SHORT_MAX, 1) == SHORT_MAX);
ZT_UNIT_ASSERT(test, zt_short_div(1, SHORT_MIN) == 0);
ZT_UNIT_ASSERT(test, zt_short_div(SHORT_MIN, 1) == SHORT_MIN);
ZT_UNIT_ASSERT(test, zt_short_div(0, SHORT_MIN) == 0);
/* ZT_UNIT_ASSERT_RAISES(test, zt_exception.math.divide_by_zero, zt_short_div(SHORT_MAX, 0)); */
ZT_UNIT_ASSERT(test, zt_short_div(SHORT_MAX, 2) == SHORT_MAX / 2);
ZT_UNIT_ASSERT(test, zt_short_div(2, SHORT_MAX) == 2 / SHORT_MAX);
ZT_UNIT_ASSERT(test, zt_short_div(SHORT_MIN, 2) == SHORT_MIN / 2);
ZT_UNIT_ASSERT(test, zt_short_div(2, SHORT_MIN) == 2 / SHORT_MIN);
/* ZT_UNIT_ASSERT_RAISES(test, zt_exception.math.overflow, zt_short_div(SHORT_MIN, -1)); */
/* int */
ZT_UNIT_ASSERT(test, zt_int_div(1, INT_MAX) == 0);
ZT_UNIT_ASSERT(test, zt_int_div(INT_MAX, 1) == INT_MAX);
ZT_UNIT_ASSERT(test, zt_int_div(1, INT_MIN) == 0);
ZT_UNIT_ASSERT(test, zt_int_div(INT_MIN, 1) == INT_MIN);
ZT_UNIT_ASSERT(test, zt_int_div(0, INT_MIN) == 0);
/* ZT_UNIT_ASSERT_RAISES(test, zt_exception.math.divide_by_zero, zt_int_div(INT_MAX, 0)); */
ZT_UNIT_ASSERT(test, zt_int_div(INT_MAX, 2) == INT_MAX / 2);
ZT_UNIT_ASSERT(test, zt_int_div(2, INT_MAX) == 2 / INT_MAX);
ZT_UNIT_ASSERT(test, zt_int_div(INT_MIN, 2) == INT_MIN / 2);
ZT_UNIT_ASSERT(test, zt_int_div(2, INT_MIN) == 2 / INT_MIN);
/* ZT_UNIT_ASSERT_RAISES(test, zt_exception.math.overflow, zt_int_div(INT_MIN, -1)); */
# ifndef __x86_64__
/* long */
ZT_UNIT_ASSERT(test, zt_long_div(1, LONG_MAX) == 0);
ZT_UNIT_ASSERT(test, zt_long_div(LONG_MAX, 1) == LONG_MAX);
ZT_UNIT_ASSERT(test, zt_long_div(1, LONG_MIN) == 0);
ZT_UNIT_ASSERT(test, zt_long_div(LONG_MIN, 1) == LONG_MIN);
ZT_UNIT_ASSERT(test, zt_long_div(0, LONG_MIN) == 0);
/* ZT_UNIT_ASSERT_RAISES(test, zt_exception.math.divide_by_zero, zt_long_div(LONG_MAX, 0)); */
ZT_UNIT_ASSERT(test, zt_long_div(LONG_MAX, 2) == LONG_MAX / 2);
ZT_UNIT_ASSERT(test, zt_long_div(2, LONG_MAX) == 2 / LONG_MAX);
ZT_UNIT_ASSERT(test, zt_long_div(LONG_MIN, 2) == LONG_MIN / 2);
ZT_UNIT_ASSERT(test, zt_long_div(2, LONG_MIN) == 2 / LONG_MIN);
/* ZT_UNIT_ASSERT_RAISES(test, zt_exception.math.overflow, zt_long_div(LONG_MIN, -1)); */
# endif /* ifndef __x86_64__ */
} /* test_case_signed_div */
static void
test_case_unsigned_div(struct zt_unit_test *test, void *data UNUSED)
{
/* unsigned division */
/* char */
ZT_UNIT_ASSERT(test, zt_uchar_div(1, CHAR_MAX) == 0);
ZT_UNIT_ASSERT(test, zt_uchar_div(CHAR_MAX, 1) == CHAR_MAX);
ZT_UNIT_ASSERT(test, zt_uchar_div(0, CHAR_MAX) == 0);
/* ZT_UNIT_ASSERT_RAISES(test, zt_exception.math.divide_by_zero, zt_uchar_div(CHAR_MAX, 0)); */
ZT_UNIT_ASSERT(test, zt_uchar_div(CHAR_MAX, 2) == CHAR_MAX / 2);
/* char */
ZT_UNIT_ASSERT(test, zt_ushort_div(1, CHAR_MAX) == 0);
ZT_UNIT_ASSERT(test, zt_ushort_div(CHAR_MAX, 1) == CHAR_MAX);
ZT_UNIT_ASSERT(test, zt_ushort_div(0, CHAR_MAX) == 0);
/* ZT_UNIT_ASSERT_RAISES(test, zt_exception.math.divide_by_zero, zt_ushort_div(CHAR_MAX, 0)); */
ZT_UNIT_ASSERT(test, zt_ushort_div(CHAR_MAX, 2) == CHAR_MAX / 2);
/* int */
ZT_UNIT_ASSERT(test, zt_uint_div(1, INT_MAX) == 0);
ZT_UNIT_ASSERT(test, zt_uint_div(INT_MAX, 1) == INT_MAX);
ZT_UNIT_ASSERT(test, zt_uint_div(0, INT_MAX) == 0);
/* ZT_UNIT_ASSERT_RAISES(test, zt_exception.math.divide_by_zero, zt_uint_div(INT_MAX, 0)); */
ZT_UNIT_ASSERT(test, zt_uint_div(INT_MAX, 2) == INT_MAX / 2);
# ifndef __x86_64__
/* long */
ZT_UNIT_ASSERT(test, zt_ulong_div(1, LONG_MAX) == 0);
ZT_UNIT_ASSERT(test, zt_ulong_div(LONG_MAX, 1) == LONG_MAX);
ZT_UNIT_ASSERT(test, zt_ulong_div(0, LONG_MAX) == 0);
/* ZT_UNIT_ASSERT_RAISES(test, zt_exception.math.divide_by_zero, zt_ulong_div(LONG_MAX, 0)); */
ZT_UNIT_ASSERT(test, zt_ulong_div(LONG_MAX, 2) == LONG_MAX / 2);
# endif /* ifndef __x86_64__ */
}
int
register_int_suite(struct zt_unit *unit)
{
struct zt_unit_suite * suite;
suite = zt_unit_register_suite(unit, "int tests", NULL, NULL, NULL);
zt_unit_register_test(suite, "signed addition", test_case_signed_add);
zt_unit_register_test(suite, "unsigned addition", test_case_unsigned_add);
zt_unit_register_test(suite, "signed subtraction", test_case_signed_sub);
zt_unit_register_test(suite, "unsigned subtraction", test_case_unsigned_sub);
zt_unit_register_test(suite, "signed multiplication", test_case_signed_mul);
zt_unit_register_test(suite, "unsigned multiplication", test_case_unsigned_mul);
zt_unit_register_test(suite, "signed division", test_case_signed_div);
zt_unit_register_test(suite, "unsigned division", test_case_unsigned_div);
return 0;
}
|
91 | ./libzt/tests/base_test.c | #define ZT_WITH_UNIT
#include <zt.h>
#include <string.h>
#include <ctype.h>
#include <zt_base.h>
#define test_encoding(_base, _data, _len, _result1, _result2) \
do { unsigned char * cdata = (unsigned char *)_data; \
char * result = malloc(20); \
int ret; \
size_t len; \
bool bitisset = false; \
void **rptr = (void **)&result; \
memset(result, 0, 20); \
len = 20; \
bitisset = ZT_BIT_ISSET(_base->flags, zt_base_encode_with_padding); \
ZT_BIT_UNSET(_base->flags, zt_base_encode_with_padding); \
ret = zt_base_encode(_base, cdata, _len, rptr, &len); \
ZT_UNIT_ASSERT(test, !ret); \
ZT_UNIT_ASSERT(test, strcmp(result, _result1) == 0); \
ZT_UNIT_ASSERT(test, strlen(result) == len); \
if (bitisset) ZT_BIT_SET(_base->flags, zt_base_encode_with_padding); \
\
memset(result, 0, 20); \
len = 20; \
ret = zt_base_encode(_base, cdata, _len, rptr, &len); \
ZT_UNIT_ASSERT(test, !ret); \
ZT_UNIT_ASSERT(test, strcmp(result, _result2) == 0); \
ZT_UNIT_ASSERT(test, strlen(result) == len); zt_free(result);} while (0)
#define test_decoding(_base, _data, _len, _result1, _result2) \
do { char * result = malloc(20); \
int ret; \
size_t len; \
void ** rptr = (void **)&result; \
memset(result, 0, 20); \
len = 20; \
ret = zt_base_decode(_base, (unsigned char *)_result1, strlen(_result1), rptr, &len); \
ZT_UNIT_ASSERT(test, !ret); \
ZT_UNIT_ASSERT(test, strcmp(result, (char *)_data) == 0); \
ZT_UNIT_ASSERT(test, strlen(result) == len); \
\
memset(result, 0, 20); \
len = 20; \
ret = zt_base_decode(_base, _result2, strlen(_result2), rptr, &len); \
ZT_UNIT_ASSERT(test, !ret); \
ZT_UNIT_ASSERT(test, strcmp(result, (char *)_data) == 0); \
ZT_UNIT_ASSERT(test, strlen(result) == len); zt_free(result);} while (0)
static void
encoding_tests(struct zt_unit_test * test, void * _data UNUSED) {
char * data = NULL;
char result[20];
#define OLEN sizeof(result)
size_t len = OLEN;
int ret;
void ** rptr = 0;
memset(result, 0, 20);
rptr = (void **)&result;
/* base 64 tests */
/* check bad param, no out_len */
data = "wee";
ret = zt_base_encode(zt_base64_rfc, data, strlen(data), rptr, NULL);
ZT_UNIT_ASSERT(test, ret == -1);
/* check null buff but valid bufsize */
ret = zt_base_encode(zt_base64_rfc, data, strlen(data), NULL, &len);
ZT_UNIT_ASSERT(test, ret == 0);
ZT_UNIT_ASSERT(test, len == 4);
/* check insufficient output space */
len = 2;
ret = zt_base_encode(zt_base64_rfc, data, strlen(data), rptr, &len);
ZT_UNIT_ASSERT(test, ret == -2);
ZT_UNIT_ASSERT(test, len == 4);
/* check missing input */
len = OLEN;
ret = zt_base_encode(zt_base64_rfc, NULL, 0, rptr, &len);
ZT_UNIT_ASSERT(test, ret == 0);
ZT_UNIT_ASSERT(test, len == 0);
/* check empty input */
len = OLEN;
ret = zt_base_encode(zt_base64_rfc, "", 0, rptr, &len);
ZT_UNIT_ASSERT(test, ret == 0);
ZT_UNIT_ASSERT(test, len == 0);
/* check one char input */
test_encoding(zt_base64_rfc, "x", 1, "eA", "eA==");
/* check two char input */
test_encoding(zt_base64_rfc, "xy", 2, "eHk", "eHk=");
/* simple non-padded input */
test_encoding(zt_base64_rfc, "One", 3, "T25l", "T25l");
/* simple double padded input */
test_encoding(zt_base64_rfc, "Once", 4, "T25jZQ", "T25jZQ==");
/* simple single padded input */
test_encoding(zt_base64_rfc, "Ounce", 5, "T3VuY2U", "T3VuY2U=");
/* roll over */
test_encoding(zt_base64_rfc, "Amount", 6, "QW1vdW50", "QW1vdW50");
/*
* non-ascii data
* one byte
*/
{
unsigned char udata[2] = { 0xF0, 0x00 };
test_encoding(zt_base64_rfc, udata, 1, "8A", "8A==");
}
/* two bytes */
{
unsigned char udata[3] = { 0xFF, 0xFD, 0x00 };
test_encoding(zt_base64_rfc, udata, 2, "//0", "//0=");
}
/* three bytes */
{
unsigned char udata[4] = { 0xFF, 0xFF, 0xBE, 0x00 };
test_encoding(zt_base64_rfc, udata, 3, "//++", "//++");
}
/* null bytes */
{
unsigned char udata[3] = { 0xF0, 0x00, 0x00 };
test_encoding(zt_base64_rfc, udata, 2, "8AA", "8AA=");
}
/* RFC4648 test vectors */
test_encoding(zt_base64_rfc, "", 0, "", "");
test_encoding(zt_base64_rfc, "f", 1, "Zg", "Zg==");
test_encoding(zt_base64_rfc, "fo", 2, "Zm8", "Zm8=");
test_encoding(zt_base64_rfc, "foo", 3, "Zm9v", "Zm9v");
test_encoding(zt_base64_rfc, "foob", 4, "Zm9vYg", "Zm9vYg==");
test_encoding(zt_base64_rfc, "fooba", 5, "Zm9vYmE", "Zm9vYmE=");
test_encoding(zt_base64_rfc, "foobar", 6, "Zm9vYmFy", "Zm9vYmFy");
/* RFC4648 nopad test vectors */
test_encoding(zt_base64_rfc_nopad, "", 0, "", "");
test_encoding(zt_base64_rfc_nopad, "f", 1, "Zg", "Zg");
test_encoding(zt_base64_rfc_nopad, "fo", 2, "Zm8", "Zm8");
test_encoding(zt_base64_rfc_nopad, "foo", 3, "Zm9v", "Zm9v");
test_encoding(zt_base64_rfc_nopad, "foob", 4, "Zm9vYg", "Zm9vYg");
test_encoding(zt_base64_rfc_nopad, "fooba", 5, "Zm9vYmE", "Zm9vYmE");
test_encoding(zt_base64_rfc_nopad, "foobar", 6, "Zm9vYmFy", "Zm9vYmFy");
/* base 32 tests */
test_encoding(zt_base32_rfc, "", 0, "", "");
test_encoding(zt_base32_rfc, "f", 1, "MY", "MY======");
test_encoding(zt_base32_rfc, "fo", 2, "MZXQ", "MZXQ====");
test_encoding(zt_base32_rfc, "foo", 3, "MZXW6", "MZXW6===");
test_encoding(zt_base32_rfc, "foob", 4, "MZXW6YQ", "MZXW6YQ=");
test_encoding(zt_base32_rfc, "fooba", 5, "MZXW6YTB", "MZXW6YTB");
test_encoding(zt_base32_rfc, "foobar", 6, "MZXW6YTBOI", "MZXW6YTBOI======");
/* base 32 hex tests */
test_encoding(zt_base32_hex, "", 0, "", "");
test_encoding(zt_base32_hex, "f", 1, "CO", "CO======");
test_encoding(zt_base32_hex, "fo", 2, "CPNG", "CPNG====");
test_encoding(zt_base32_hex, "foo", 3, "CPNMU", "CPNMU===");
test_encoding(zt_base32_hex, "foob", 4, "CPNMUOG", "CPNMUOG=");
test_encoding(zt_base32_hex, "fooba", 5, "CPNMUOJ1", "CPNMUOJ1");
test_encoding(zt_base32_hex, "foobar", 6, "CPNMUOJ1E8", "CPNMUOJ1E8======");
/* base 16 tests */
test_encoding(zt_base16_rfc, "", 0, "", "");
test_encoding(zt_base16_rfc, "f", 1, "66", "66");
test_encoding(zt_base16_rfc, "fo", 2, "666F", "666F");
test_encoding(zt_base16_rfc, "foo", 3, "666F6F", "666F6F");
test_encoding(zt_base16_rfc, "foob", 4, "666F6F62", "666F6F62");
test_encoding(zt_base16_rfc, "fooba", 5, "666F6F6261", "666F6F6261");
test_encoding(zt_base16_rfc, "foobar", 6, "666F6F626172", "666F6F626172");
} /* encoding_tests */
static void
decoding_tests(struct zt_unit_test * test, void * _data UNUSED) {
char * result = alloca(20);
char * resnul = NULL;
size_t len;
int ret;
memset(result, 0, 20);
/* bad param, no out len */
ret = zt_base_decode(zt_base64_rfc, "Zg", strlen("Zg"), (void **)&result, NULL);
ZT_UNIT_ASSERT(test, ret == -1);
/* output size calculation */
len = 1;
ret = zt_base_decode(zt_base64_rfc, "Zg", strlen("Zg"), NULL, &len);
ZT_UNIT_ASSERT(test, ret == 0);
ZT_UNIT_ASSERT(test, len == 2);
/* check insufficient output space */
len = 1;
ret = zt_base_decode(zt_base64_rfc, "Zm8", strlen("Zm8"), (void **)&result, &len);
ZT_UNIT_ASSERT(test, ret == -2);
ZT_UNIT_ASSERT(test, len == 3);
/* check missing input */
len = 2;
ret = zt_base_decode(zt_base64_rfc, NULL, 0, (void **)&result, &len);
ZT_UNIT_ASSERT(test, ret == 0);
ZT_UNIT_ASSERT(test, len == 0);
/* check empty input */
len = 2;
ret = zt_base_decode(zt_base64_rfc, "", 0, (void **)&result, &len);
ZT_UNIT_ASSERT(test, ret == 0);
ZT_UNIT_ASSERT(test, len == 0);
/* make sure dynamic allocation works */
len = 0;
resnul = NULL;
ret = zt_base_decode(zt_base64_rfc, "Zm9vYmFy", 8, (void **)&resnul, &len);
ZT_UNIT_ASSERT(test, ret == 0);
ZT_UNIT_ASSERT(test, resnul != NULL);
ZT_UNIT_ASSERT(test, len == 6);
ZT_UNIT_ASSERT(test, strncmp("foobar", resnul, len) == 0);
zt_free(resnul);
resnul = NULL;
/* RFC4648 test vectors */
test_decoding(zt_base64_rfc, "", 0, "", "");
test_decoding(zt_base64_rfc, "f", 1, "Zg", "Zg==");
test_decoding(zt_base64_rfc, "fo", 2, "Zm8", "Zm8=");
test_decoding(zt_base64_rfc, "foo", 3, "Zm9v", "Zm9v");
test_decoding(zt_base64_rfc, "foob", 4, "Zm9vYg", "Zm9vYg==");
test_decoding(zt_base64_rfc, "fooba", 5, "Zm9vYmE", "Zm9vYmE=");
test_decoding(zt_base64_rfc, "foobar", 6, "Zm9vYmFy", "Zm9vYmFy");
#ifdef WIN32
test_decoding(zt_base64_rfc, "\r\nfoobar", 7, "Zm9vYmFy", "Zm9vYmFy");
test_decoding(zt_base64_rfc, "f\r\noobar", 7, "Zm9vYmFy", "Zm9vYmFy");
test_decoding(zt_base64_rfc, "fo\r\nobar", 7, "Zm9vYmFy", "Zm9vYmFy");
test_decoding(zt_base64_rfc, "foo\r\nbar", 7, "Zm9vYmFy", "Zm9vYmFy");
test_decoding(zt_base64_rfc, "foob\r\nar", 7, "Zm9vYmFy", "Zm9vYmFy");
test_decoding(zt_base64_rfc, "fooba\r\nr", 7, "Zm9vYmFy", "Zm9vYmFy");
test_decoding(zt_base64_rfc, "foobar\r\n", 7, "Zm9vYmFy", "Zm9vYmFy");
#endif
/* base 32 tests */
test_decoding(zt_base32_rfc, "", 0, "", "");
test_decoding(zt_base32_rfc, "f", 1, "MY", "MY======");
test_decoding(zt_base32_rfc, "fo", 2, "MZXQ", "MZXQ====");
test_decoding(zt_base32_rfc, "foo", 3, "MZXW6", "MZXW6===");
test_decoding(zt_base32_rfc, "foob", 4, "MZXW6YQ", "MZXW6YQ=");
test_decoding(zt_base32_rfc, "fooba", 5, "MZXW6YTB", "MZXW6YTB");
test_decoding(zt_base32_rfc, "foobar", 6, "MZXW6YTBOI", "MZXW6YTBOI======");
/* base 32 hex tests */
test_decoding(zt_base32_hex, "", 0, "", "");
test_decoding(zt_base32_hex, "f", 1, "CO", "CO======");
test_decoding(zt_base32_hex, "fo", 2, "CPNG", "CPNG====");
test_decoding(zt_base32_hex, "foo", 3, "CPNMU", "CPNMU===");
test_decoding(zt_base32_hex, "foob", 4, "CPNMUOG", "CPNMUOG=");
test_decoding(zt_base32_hex, "fooba", 5, "CPNMUOJ1", "CPNMUOJ1");
test_decoding(zt_base32_hex, "foobar", 6, "CPNMUOJ1E8", "CPNMUOJ1E8======");
/* base 16 tests */
test_decoding(zt_base16_rfc, "", 0, "", "");
test_decoding(zt_base16_rfc, "f", 1, "66", "66");
test_decoding(zt_base16_rfc, "fo", 2, "666F", "666F");
test_decoding(zt_base16_rfc, "foo", 3, "666F6F", "666F6F");
test_decoding(zt_base16_rfc, "foob", 4, "666F6F62", "666F6F62");
test_decoding(zt_base16_rfc, "fooba", 5, "666F6F6261", "666F6F6261");
test_decoding(zt_base16_rfc, "foobar", 6, "666F6F626172", "666F6F626172");
{
size_t i;
char * in = NULL;
size_t len = 0;
char * out = NULL;
size_t olen = 0;
char * enc = NULL;
size_t elen = 0;
srandomdev();
while((len = random() % 1024) < 20);
in = zt_calloc(char, len);
/* out = zt_calloc(char, len); */
for(i=0; i < len; i++) {
char k;
while((k = random()) && !isprint(k));
in[i] = k;
}
zt_base_encode(zt_base64_rfc, in, len, (void **)&enc, &elen);
zt_base_decode(zt_base64_rfc, enc, elen, (void **)&out, &olen);
if(len != olen ||
strcmp(in, out) != 0) {
ZT_UNIT_FAIL(test, "%s failed to encode/decode correctly %s:%d", in, __FILE__, __LINE__);
}
}
} /* decoding_tests */
static void
block_tests(struct zt_unit_test * test, void * _data UNUSED) {
char text[] = {
47, 42, 10, 32, 42, 32, 97, 115, 115, 101, 114, 116, 95, 116, 101, 115, 116, 46, 99, 32, 32, 32,
32, 32, 32, 32, 32, 116, 101, 115, 116, 32, 97, 115, 115, 101, 114, 116, 105, 111, 110, 115, 10,
32, 42, 10, 32, 42, 32, 67, 111, 112, 121, 114, 105, 103, 104, 116, 32, 40, 67, 41, 32, 50, 48, 48,
48, 45, 50, 48, 48, 50, 44, 32, 50, 48, 48, 52, 44, 32, 50, 48, 48, 53, 44, 32, 74, 97, 115, 111,
110, 32, 76, 46, 32, 83, 104, 105, 102, 102, 101, 114, 32, 60, 106, 115, 104, 105, 102, 102, 101,
114, 64, 122, 101, 114, 111, 116, 97, 111, 46, 99, 111, 109, 62, 46, 32, 32, 65, 108, 108, 32, 82,
105, 103, 104, 116, 115, 32, 82, 101, 115, 101, 114, 118, 101, 100, 46, 10, 32, 42, 32, 83, 101,
101, 32, 102, 105, 108, 101, 32, 67, 79, 80, 89, 73, 78, 71, 32, 102, 111, 114, 32, 100, 101, 116,
97, 105, 108, 115, 46, 10, 32, 42, 10, 32, 42, 32, 36, 73, 100, 58, 32, 97, 115, 115, 101, 114,
116, 95, 116, 101, 115, 116, 46, 99, 44, 118, 32, 49, 46, 50, 32, 50, 48, 48, 51, 47, 48, 54, 47,
48, 57, 32, 49, 51, 58, 52, 50, 58, 49, 50, 32, 106, 115, 104, 105, 102, 102, 101, 114, 32, 69,
120, 112, 32, 36, 10, 32, 42, 10, 32, 42, 47, 10, 10, 47, 42, 10, 32, 42, 32, 68, 101, 115,99, 114,
105, 112, 116, 105, 111, 110, 58, 10, 32, 42, 47, 10, 35, 117, 110, 100, 101, 102, 32, 78, 68, 69,
66, 85, 71, 10, 35, 100, 101, 102, 105, 110, 101, 32, 90, 84, 95, 87, 73, 84, 72, 95, 85, 78, 73,
84, 10, 35, 105, 110, 99, 108, 117, 100, 101, 32, 60, 122, 116, 46, 104, 62, 10, 10, 35, 100, 101,
102, 105, 110, 101, 32, 68, 85, 77, 77, 89, 95, 76, 79, 71, 32, 34, 100, 117, 109, 109, 121, 46,
108, 111, 103, 34, 10, 10, 105, 110, 116, 32, 114, 114, 95, 118, 97, 108, 32, 61, 32, 48, 59, 10,
10, 118, 111, 105, 100, 10, 116, 101, 115, 116, 95, 114, 101, 116, 117, 114, 110, 40, 105, 110,
116, 32, 120, 41, 32, 123, 10, 32, 32, 32, 32, 122, 116, 95, 97, 115, 115, 101, 114, 116, 95, 114,
101, 116, 117, 114, 110, 40, 49, 61, 61, 120, 41, 59, 10, 32, 32, 32, 32, 114, 114, 95, 118, 97,
108, 32, 61, 32, 49, 59, 10, 125, 10, 10, 105, 110, 116, 10, 116, 101, 115, 116, 95, 114, 101,
116, 117, 114, 110, 118, 40, 105, 110, 116, 32, 120, 41, 32, 123, 10, 32, 32, 32, 32, 122, 116,
95, 97, 115, 115, 101, 114, 116, 95, 114, 101, 116, 117, 114, 110, 86, 40, 49, 61, 61, 120, 44,
32, 49, 41, 59, 10, 10, 32, 32, 32, 32, 114, 101, 116, 117, 114, 110, 32, 50, 59, 10, 125, 10, 10,
115, 116, 97, 116, 105, 99, 32, 118, 111, 105, 100, 10, 98, 97, 115, 105, 99, 95, 116, 101, 115,
116, 115, 40, 115, 116, 114, 117, 99, 116, 32, 122, 116, 95, 117, 110, 105, 116, 95, 116, 101,
115, 116, 32, 42, 116, 101, 115, 116, 32, 85, 78, 85, 83, 69, 68, 44, 32, 118, 111, 105, 100, 32,
42, 100, 97, 116, 97, 32, 85, 78, 85, 83, 69, 68, 41, 10, 123, 10, 32, 32, 32, 32, 47, 42, 32, 103,
101, 116, 32, 114, 105, 100, 32, 111, 102, 32, 116, 104, 101, 32, 108, 111, 103, 32, 109, 101,
115, 115, 97, 103, 101, 32, 102, 111, 114, 32, 116, 104, 101, 32, 109, 111, 109, 101, 110, 116,
32, 42, 47, 10, 32, 32, 32, 32, 122, 116, 95, 108, 111, 103, 95, 116, 121, 32, 42, 32, 111, 108,
111, 103, 59, 10, 32, 32, 32, 32, 122, 116, 95, 108, 111, 103, 95, 116, 121, 32, 42, 32, 108, 111,
103, 59, 10, 32, 32, 32, 32, 105, 110, 116, 32, 32, 32, 32, 32, 32, 32, 32, 32, 105, 32, 61, 32, 49,
59, 10, 32, 32, 32, 32, 105, 110, 116, 32, 32, 32, 32, 32, 32, 32, 32, 32, 114, 105, 95, 118,97,
108, 32, 61, 32, 48, 59, 10, 10, 32, 32, 32, 32, 108, 111, 103, 32, 61, 32, 122, 116, 95, 108,111,
103, 95, 102, 105, 108, 101, 40, 68, 85, 77, 77, 89, 95, 76, 79, 71, 44, 32, 48, 44, 32, 48, 41, 59,
10, 32, 32, 32, 32, 111, 108, 111, 103, 32, 61, 32, 122, 116, 95, 108, 111, 103, 95, 108, 111,
103, 103, 101, 114, 40, 108, 111, 103, 41, 59, 10, 10, 32, 32, 32, 32, 122, 116, 95, 97, 115, 115,
101, 114, 116, 40, 49, 32, 61, 61, 32, 105, 41, 59, 10, 10, 32, 32, 32, 32, 114, 114, 95, 118,97,
108, 32, 61, 32, 48, 59, 10, 32, 32, 32, 32, 116, 101, 115, 116, 95, 114, 101, 116, 117, 114, 110,
40, 48, 41, 59, 10, 32, 32, 32, 32, 90, 84, 95, 85, 78, 73, 84, 95, 65, 83, 83, 69, 82, 84, 40, 116,
101, 115, 116, 44, 32, 114, 114, 95, 118, 97, 108, 32, 61, 61, 32, 48, 41, 59, 10, 10, 32, 32, 32,
32, 114, 114, 95, 118, 97, 108, 32, 61, 32, 48, 59, 10, 32, 32, 32, 32, 116, 101, 115, 116, 95,
114, 101, 116, 117, 114, 110, 40, 49, 41, 59, 10, 32, 32, 32, 32, 90, 84, 95, 85, 78, 73, 84, 95,
65, 83, 83, 69, 82, 84, 40, 116, 101, 115, 116, 44, 32, 114, 114, 95, 118, 97, 108, 32, 61, 61, 32,
49, 41, 59, 10, 10, 32, 32, 32, 32, 114, 105, 95, 118, 97, 108, 32, 61, 32, 116, 101, 115, 116,95,
114, 101, 116, 117, 114, 110, 118, 40, 48, 41, 59, 10, 32, 32, 32, 32, 90, 84, 95, 85, 78, 73, 84,
95, 65, 83, 83, 69, 82, 84, 40, 116, 101, 115, 116, 44, 32, 114, 105, 95, 118, 97, 108, 32, 61, 61,
32, 49, 41, 59, 10, 10, 32, 32, 32, 32, 114, 105, 95, 118, 97, 108, 32, 61, 32, 116, 101, 115,116,
95, 114, 101, 116, 117, 114, 110, 118, 40, 49, 41, 59, 10, 32, 32, 32, 32, 90, 84, 95, 85, 78, 73,
84, 95, 65, 83, 83, 69, 82, 84, 40, 116, 101, 115, 116, 44, 32, 114, 105, 95, 118, 97, 108, 32, 61,
61, 32, 50, 41, 59, 10, 10, 32, 32, 32, 32, 122, 116, 95, 108, 111, 103, 95, 108, 111, 103, 103,
101, 114, 40, 111, 108, 111, 103, 41, 59, 10, 32, 32, 32, 32, 122, 116, 95, 108, 111, 103, 95, 99,
108, 111, 115, 101, 40, 108, 111, 103, 41, 59, 10, 10, 35, 105, 102, 32, 33, 100, 101, 102, 105,
110, 101, 100, 40, 87, 73, 78, 51, 50, 41, 10, 32, 32, 32, 32, 117, 110, 108, 105, 110, 107, 40,
68, 85, 77, 77, 89, 95, 76, 79, 71, 41, 59, 10, 35, 101, 110, 100, 105, 102, 10, 125, 10, 10, 105,
110, 116, 10, 114, 101, 103, 105, 115, 116, 101, 114, 95, 97, 115, 115, 101, 114, 116, 95, 115,
117, 105, 116, 101, 40, 115, 116, 114, 117, 99, 116, 32, 122, 116, 95, 117, 110, 105, 116, 32,
42, 117, 110, 105, 116, 41, 10, 123, 10, 32, 32, 32, 32, 115, 116, 114, 117, 99, 116, 32, 122,
116, 95, 117, 110, 105, 116, 95, 115, 117, 105, 116, 101, 32, 42, 32, 115, 117, 105, 116, 101,
59, 10, 10, 32, 32, 32, 32, 115, 117, 105, 116, 101, 32, 61, 32, 122, 116, 95, 117, 110, 105, 116,
95, 114, 101, 103, 105, 115, 116, 101, 114, 95, 115, 117, 105, 116, 101, 40, 117, 110, 105, 116,
44, 32, 34, 97, 115, 115, 101, 114, 116, 32, 116, 101, 115, 116, 115, 34, 44, 32, 78, 85, 76, 76,
44, 32, 78, 85, 76, 76, 44, 32, 78, 85, 76, 76, 41, 59, 10, 32, 32, 32, 32, 122, 116, 95, 117, 110,
105, 116, 95, 114, 101, 103, 105, 115, 116, 101, 114, 95, 116, 101, 115, 116, 40, 115, 117, 105,
116, 101, 44, 32, 34, 98, 97, 115, 105, 99, 34, 44, 32, 98, 97, 115, 105, 99, 95, 116, 101, 115,
116, 115, 41, 59, 10, 32, 32, 32, 32, 114, 101, 116, 117, 114, 110, 32, 48, 59, 10, 125, 10, 0
};
const char * encoded = "LyoKICogYXNzZXJ0X3Rlc3QuYyAgICAgICAgdGVzdCBhc3NlcnRpb25zCiAqCiAq"
"IENvcHlyaWdodCAoQykgMjAwMC0yMDAyLCAyMDA0LCAyMDA1LCBKYXNvbiBMLiBT"
"aGlmZmVyIDxqc2hpZmZlckB6ZXJvdGFvLmNvbT4uICBBbGwgUmlnaHRzIFJlc2Vy"
"dmVkLgogKiBTZWUgZmlsZSBDT1BZSU5HIGZvciBkZXRhaWxzLgogKgogKiAkSWQ6"
"IGFzc2VydF90ZXN0LmMsdiAxLjIgMjAwMy8wNi8wOSAxMzo0MjoxMiBqc2hpZmZl"
"ciBFeHAgJAogKgogKi8KCi8qCiAqIERlc2NyaXB0aW9uOgogKi8KI3VuZGVmIE5E"
"RUJVRwojZGVmaW5lIFpUX1dJVEhfVU5JVAojaW5jbHVkZSA8enQuaD4KCiNkZWZp"
"bmUgRFVNTVlfTE9HICJkdW1teS5sb2ciCgppbnQgcnJfdmFsID0gMDsKCnZvaWQK"
"dGVzdF9yZXR1cm4oaW50IHgpIHsKICAgIHp0X2Fzc2VydF9yZXR1cm4oMT09eCk7"
"CiAgICBycl92YWwgPSAxOwp9CgppbnQKdGVzdF9yZXR1cm52KGludCB4KSB7CiAg"
"ICB6dF9hc3NlcnRfcmV0dXJuVigxPT14LCAxKTsKCiAgICByZXR1cm4gMjsKfQoK"
"c3RhdGljIHZvaWQKYmFzaWNfdGVzdHMoc3RydWN0IHp0X3VuaXRfdGVzdCAqdGVz"
"dCBVTlVTRUQsIHZvaWQgKmRhdGEgVU5VU0VEKQp7CiAgICAvKiBnZXQgcmlkIG9m"
"IHRoZSBsb2cgbWVzc2FnZSBmb3IgdGhlIG1vbWVudCAqLwogICAgenRfbG9nX3R5"
"ICogb2xvZzsKICAgIHp0X2xvZ190eSAqIGxvZzsKICAgIGludCAgICAgICAgIGkg"
"PSAxOwogICAgaW50ICAgICAgICAgcmlfdmFsID0gMDsKCiAgICBsb2cgPSB6dF9s"
"b2dfZmlsZShEVU1NWV9MT0csIDAsIDApOwogICAgb2xvZyA9IHp0X2xvZ19sb2dn"
"ZXIobG9nKTsKCiAgICB6dF9hc3NlcnQoMSA9PSBpKTsKCiAgICBycl92YWwgPSAw"
"OwogICAgdGVzdF9yZXR1cm4oMCk7CiAgICBaVF9VTklUX0FTU0VSVCh0ZXN0LCBy"
"cl92YWwgPT0gMCk7CgogICAgcnJfdmFsID0gMDsKICAgIHRlc3RfcmV0dXJuKDEp"
"OwogICAgWlRfVU5JVF9BU1NFUlQodGVzdCwgcnJfdmFsID09IDEpOwoKICAgIHJp"
"X3ZhbCA9IHRlc3RfcmV0dXJudigwKTsKICAgIFpUX1VOSVRfQVNTRVJUKHRlc3Qs"
"IHJpX3ZhbCA9PSAxKTsKCiAgICByaV92YWwgPSB0ZXN0X3JldHVybnYoMSk7CiAg"
"ICBaVF9VTklUX0FTU0VSVCh0ZXN0LCByaV92YWwgPT0gMik7CgogICAgenRfbG9n"
"X2xvZ2dlcihvbG9nKTsKICAgIHp0X2xvZ19jbG9zZShsb2cpOwoKI2lmICFkZWZp"
"bmVkKFdJTjMyKQogICAgdW5saW5rKERVTU1ZX0xPRyk7CiNlbmRpZgp9CgppbnQK"
"cmVnaXN0ZXJfYXNzZXJ0X3N1aXRlKHN0cnVjdCB6dF91bml0ICp1bml0KQp7CiAg"
"ICBzdHJ1Y3QgenRfdW5pdF9zdWl0ZSAqIHN1aXRlOwoKICAgIHN1aXRlID0genRf"
"dW5pdF9yZWdpc3Rlcl9zdWl0ZSh1bml0LCAiYXNzZXJ0IHRlc3RzIiwgTlVMTCwg"
"TlVMTCwgTlVMTCk7CiAgICB6dF91bml0X3JlZ2lzdGVyX3Rlc3Qoc3VpdGUsICJi"
"YXNpYyIsIGJhc2ljX3Rlc3RzKTsKICAgIHJldHVybiAwOwp9Cg==";
const char * encoded2 = \
"LyoKICogYXNzZXJ0X3Rlc3QuYyAgICAgICAgdGVzdCBhc3NlcnRpb25zCiAqCiAq \
IENvcHlyaWdodCAoQykgMjAwMC0yMDAyLCAyMDA0LCAyMDA1LCBKYXNvbiBMLiBT \
aGlmZmVyIDxqc2hpZmZlckB6ZXJvdGFvLmNvbT4uICBBbGwgUmlnaHRzIFJlc2Vy \
dmVkLgogKiBTZWUgZmlsZSBDT1BZSU5HIGZvciBkZXRhaWxzLgogKgogKiAkSWQ6 \
IGFzc2VydF90ZXN0LmMsdiAxLjIgMjAwMy8wNi8wOSAxMzo0MjoxMiBqc2hpZmZl \
ciBFeHAgJAogKgogKi8KCi8qCiAqIERlc2NyaXB0aW9uOgogKi8KI3VuZGVmIE5E \
RUJVRwojZGVmaW5lIFpUX1dJVEhfVU5JVAojaW5jbHVkZSA8enQuaD4KCiNkZWZp \
bmUgRFVNTVlfTE9HICJkdW1teS5sb2ciCgppbnQgcnJfdmFsID0gMDsKCnZvaWQK \
dGVzdF9yZXR1cm4oaW50IHgpIHsKICAgIHp0X2Fzc2VydF9yZXR1cm4oMT09eCk7 \
CiAgICBycl92YWwgPSAxOwp9CgppbnQKdGVzdF9yZXR1cm52KGludCB4KSB7CiAg \
ICB6dF9hc3NlcnRfcmV0dXJuVigxPT14LCAxKTsKCiAgICByZXR1cm4gMjsKfQoK \
c3RhdGljIHZvaWQKYmFzaWNfdGVzdHMoc3RydWN0IHp0X3VuaXRfdGVzdCAqdGVz \
dCBVTlVTRUQsIHZvaWQgKmRhdGEgVU5VU0VEKQp7CiAgICAvKiBnZXQgcmlkIG9m \
IHRoZSBsb2cgbWVzc2FnZSBmb3IgdGhlIG1vbWVudCAqLwogICAgenRfbG9nX3R5 \
ICogb2xvZzsKICAgIHp0X2xvZ190eSAqIGxvZzsKICAgIGludCAgICAgICAgIGkg \
PSAxOwogICAgaW50ICAgICAgICAgcmlfdmFsID0gMDsKCiAgICBsb2cgPSB6dF9s \
b2dfZmlsZShEVU1NWV9MT0csIDAsIDApOwogICAgb2xvZyA9IHp0X2xvZ19sb2dn \
ZXIobG9nKTsKCiAgICB6dF9hc3NlcnQoMSA9PSBpKTsKCiAgICBycl92YWwgPSAw \
OwogICAgdGVzdF9yZXR1cm4oMCk7CiAgICBaVF9VTklUX0FTU0VSVCh0ZXN0LCBy \
cl92YWwgPT0gMCk7CgogICAgcnJfdmFsID0gMDsKICAgIHRlc3RfcmV0dXJuKDEp \
OwogICAgWlRfVU5JVF9BU1NFUlQodGVzdCwgcnJfdmFsID09IDEpOwoKICAgIHJp \
X3ZhbCA9IHRlc3RfcmV0dXJudigwKTsKICAgIFpUX1VOSVRfQVNTRVJUKHRlc3Qs \
IHJpX3ZhbCA9PSAxKTsKCiAgICByaV92YWwgPSB0ZXN0X3JldHVybnYoMSk7CiAg \
ICBaVF9VTklUX0FTU0VSVCh0ZXN0LCByaV92YWwgPT0gMik7CgogICAgenRfbG9n \
X2xvZ2dlcihvbG9nKTsKICAgIHp0X2xvZ19jbG9zZShsb2cpOwoKI2lmICFkZWZp \
bmVkKFdJTjMyKQogICAgdW5saW5rKERVTU1ZX0xPRyk7CiNlbmRpZgp9CgppbnQK \
cmVnaXN0ZXJfYXNzZXJ0X3N1aXRlKHN0cnVjdCB6dF91bml0ICp1bml0KQp7CiAg \
ICBzdHJ1Y3QgenRfdW5pdF9zdWl0ZSAqIHN1aXRlOwoKICAgIHN1aXRlID0genRf \
dW5pdF9yZWdpc3Rlcl9zdWl0ZSh1bml0LCAiYXNzZXJ0IHRlc3RzIiwgTlVMTCwg \
TlVMTCwgTlVMTCk7CiAgICB6dF91bml0X3JlZ2lzdGVyX3Rlc3Qoc3VpdGUsICJi \
YXNpYyIsIGJhc2ljX3Rlc3RzKTsKICAgIHJldHVybiAwOwp9Cg==";
char * out = NULL;
size_t outlen = 0;
ZT_UNIT_ASSERT(test, zt_base_encode(zt_base64_rfc, text, strlen(text), (void **)&out, &outlen) == 0);
ZT_UNIT_ASSERT(test, strcmp(out, encoded) == 0);
free(out);
out = NULL;
outlen = 0;
ZT_UNIT_ASSERT(test, zt_base_decode(zt_base64_rfc, encoded, strlen(encoded), (void **)&out, &outlen) == 0);
ZT_UNIT_ASSERT(test, strcmp(out, text) == 0);
free(out);
out = NULL;
outlen = 0;
ZT_UNIT_ASSERT(test, zt_base_decode(zt_base64_rfc, encoded2, strlen(encoded2), (void **)&out, &outlen) == 0);
ZT_UNIT_ASSERT(test, strcmp(out, text) == 0);
free(out);
}
int
register_base_suite(struct zt_unit * unit) {
struct zt_unit_suite * suite;
suite = zt_unit_register_suite(unit, "baseN", NULL, NULL, NULL);
zt_unit_register_test(suite, "encoding", encoding_tests);
zt_unit_register_test(suite, "decoding", decoding_tests);
zt_unit_register_test(suite, "block", block_tests);
return 0;
}
|
92 | ./libzt/tests/uuid_test.c | /*
* sha1_test.c test assertions
*
* Copyright (C) 2008, Jason L. Shiffer <jshiffer@zerotao.org>. All Rights Reserved.
* See file COPYING for details.
*
*/
/*
* Description:
*/
#ifdef HAVE_CONFIG_H
# include "zt_config.h"
#endif /* HAVE_CONFIG_H */
#ifdef HAVE_STRING_H
# include <string.h>
#endif /* HAVE_STRING_H */
#include <math.h>
#define ZT_WITH_UNIT
#include <zt.h>
/*
* void *
* time_uuid4(void * data) {
* zt_uuid_t uuid;
* zt_uuid4(&uuid);
* return 0;
* }
*/
static void
uuid4_tests(struct zt_unit_test * test, void * data UNUSED) {
zt_uuid_t uuid;
int i;
int fail_ver;
int volatile fail_variant;
memset(&uuid, 0, sizeof(zt_uuid_t));
fail_ver = 0;
fail_variant = 0;
for (i = 0; i < 100; i++) {
uint8_t y;
zt_uuid4(&uuid);
if (((uuid.data.field.time_hi_and_version & 0x0F) >> 4) == UUID_VER_PSEUDORANDOM) {
fail_ver = 1;
}
y = (uuid.data.field.clock_seq_hi_and_reserved >> 4);
if (y < 8 || y > 0x0b) {
fail_variant = 1;
}
}
ZT_UNIT_ASSERT(test, fail_ver == 0);
ZT_UNIT_ASSERT(test, fail_variant == 0);
}
static void
uuid5_tests(struct zt_unit_test * test, void * data UNUSED) {
/* get rid of the log message for the moment */
char * tdata[] = { "abcdbcdecdefdefgefghfghighijhijkijkljklmklmnlmnomnopnopq",
"abc",
"http://www.google.com" };
char * rdata[] = { "028eea4f-70e7-5c44-a3d2-fc85d9847fb8",
"7697a46f-b283-5da3-8e7c-62c11c03dd9e",
"df65da1c-a04a-5bab-841a-e87753378510" };
char * rdatas[] = { "028eea4f70e75c44a3d2fc85d9847fb8",
"7697a46fb2835da38e7c62c11c03dd9e",
"df65da1ca04a5bab841ae87753378510" };
zt_uuid_ns namespaces[] = { UUID_NS_DNS,
UUID_NS_URL,
UUID_NS_OID,
UUID_NS_X500 };
zt_uuid_t uuid;
char * uuid_s;
int i;
int x;
int fail_ver = 0;
int volatile fail_variant = 0;
ssize_t s = 0;
for (i = 0; i < (int)sizeof_array(tdata); i++) {
zt_uuid5(tdata[i], strlen(tdata[i]), UUID_NS_OID, &uuid);
s = zt_uuid_tostr(&uuid, &uuid_s, zt_uuid_std_fmt);
ZT_UNIT_ASSERT(test, memcmp(uuid_s, rdata[i], 36) == 0);
zt_free(uuid_s);
s = zt_uuid_tostr(&uuid, &uuid_s, zt_uuid_short_fmt);
ZT_UNIT_ASSERT(test, memcmp(uuid_s, rdatas[i], 32) == 0);
zt_free(uuid_s);
}
fail_ver = 0;
fail_variant = 0;
for (x = 0; x < (int)sizeof_array(namespaces); x++) {
for (i = 0; i < 100; i++) {
uint8_t y;
zt_uuid5(tdata[2], strlen(tdata[2]), namespaces[x], &uuid);
if ((uuid.data.field.time_hi_and_version & 0xF0) >> 4 != UUID_VER_NAMESPACE_SHA1) {
fail_ver = 1;
}
y = (uuid.data.field.clock_seq_hi_and_reserved >> 4);
if (y < 8 || y > 0xb) {
fail_variant = 1;
}
}
}
ZT_UNIT_ASSERT(test, fail_ver == 0);
ZT_UNIT_ASSERT(test, fail_variant == 0);
} /* uuid5_tests */
static void
uuid_generic_tests(struct zt_unit_test * test, void * data UNUSED) {
char * uuids1;
char * uuids2;
zt_uuid_t uuid1;
zt_uuid_t uuid2;
zt_uuid4(&uuid1);
zt_uuid_tostr(&uuid1, &uuids1, zt_uuid_std_fmt);
zt_uuid_fromstr(uuids1, &uuid2, zt_uuid_std_fmt);
zt_uuid_tostr(&uuid2, &uuids2, zt_uuid_std_fmt);
ZT_UNIT_ASSERT(test, zt_uuid_cmp(&uuid1, &uuid2) == 0);
ZT_UNIT_ASSERT(test, strcmp(uuids1, uuids2) == 0);
ZT_UNIT_ASSERT(test, zt_uuid_isvalid(uuids1, zt_uuid_std_fmt) == 0);
ZT_UNIT_ASSERT(test, zt_uuid_isvalid(uuids2, zt_uuid_std_fmt) == 0);
zt_free(uuids1);
zt_free(uuids2);
uuids1 = 0;
uuids2 = 0;
zt_uuid_tostr(&uuid1, &uuids1, zt_uuid_short_fmt);
ZT_UNIT_ASSERT(test, uuids1 != NULL);
zt_uuid_fromstr(uuids1, &uuid2, zt_uuid_short_fmt);
zt_uuid_tostr(&uuid2, &uuids2, zt_uuid_short_fmt);
ZT_UNIT_ASSERT(test, uuids2 != NULL);
ZT_UNIT_ASSERT(test, zt_uuid_isvalid(uuids1, zt_uuid_short_fmt) == 0);
ZT_UNIT_ASSERT(test, zt_uuid_isvalid(uuids2, zt_uuid_short_fmt) == 0);
ZT_UNIT_ASSERT(test, zt_uuid_cmp(&uuid1, &uuid2) == 0);
ZT_UNIT_ASSERT(test, strcmp(uuids1, uuids2) == 0);
zt_free(uuids1);
zt_free(uuids2);
uuids1 = 0;
uuids2 = 0;
zt_uuid4(&uuid1);
ZT_UNIT_ASSERT(test, zt_uuid_tostr(&uuid1, &uuids1, zt_uuid_base62_fmt) == UUID_BASE62_STR_LEN);
ZT_UNIT_ASSERT(test, zt_uuid_fromstr(uuids1, &uuid2, zt_uuid_base62_fmt) == 0);
ZT_UNIT_ASSERT(test, zt_uuid_tostr(&uuid2, &uuids2, zt_uuid_base62_fmt) == UUID_BASE62_STR_LEN);
ZT_UNIT_ASSERT(test, zt_uuid_isvalid(uuids1, zt_uuid_base62_fmt) == 0);
ZT_UNIT_ASSERT(test, zt_uuid_isvalid(uuids2, zt_uuid_base62_fmt) == 0);
ZT_UNIT_ASSERT(test, zt_uuid_cmp(&uuid1, &uuid2) == 0);
ZT_UNIT_ASSERT(test, strcmp(uuids1, uuids2) == 0);
zt_free(uuids1);
zt_free(uuids2);
ZT_UNIT_ASSERT(test, zt_uuid_tostr(&uuid1, &uuids1, zt_uuid_base62_hashable_fmt) == UUID_BASE62_STR_LEN);
ZT_UNIT_ASSERT(test, zt_uuid_fromstr(uuids1, &uuid2, zt_uuid_base62_hashable_fmt) == 0);
ZT_UNIT_ASSERT(test, zt_uuid_tostr(&uuid2, &uuids2, zt_uuid_base62_hashable_fmt) == UUID_BASE62_STR_LEN);
ZT_UNIT_ASSERT(test, zt_uuid_isvalid(uuids1, zt_uuid_base62_hashable_fmt) == 0);
ZT_UNIT_ASSERT(test, zt_uuid_isvalid(uuids2, zt_uuid_base62_hashable_fmt) == 0);
ZT_UNIT_ASSERT(test, zt_uuid_cmp(&uuid1, &uuid2) == 0);
ZT_UNIT_ASSERT(test, strcmp(uuids1, uuids2) == 0);
zt_free(uuids1);
zt_free(uuids2);
uuids1 = 0;
uuids2 = 0;
{
int i;
char * cmp[] = {
"611e34722c264145a936a854984ea10c", "8kXjP4L7XohewIBQdYqnog",
"e8a29b34d94a43288a380d795da3a277", "jYjjP0AIK5qbRJEaJQtHvh",
"e40c0b36c5af463e8286a94686634e03", "jzT7BxJwiLAbcMN0MZJKi7",
"52a317170ad841448835a8351f276c75", "75SgelhCYU4bH2vEIrFZxr",
"d026bd1056a74e60a0c8a63249d34e70", "hRZ2OT6eWoodNQAWnbBswo",
"6bff38471eb54d1597d30513f358aa12", "9gRDZQIhxFHd29K97UR0EG",
"a99a8f28e4fb466a868d3346ee670e32", "eyNoLsM1IHobydjKIgtGZI",
"d2b65062269f4971a2474c1833d58454", "i5CbxnEth73dVNTae6gRyA",
"52c58a378b7d446c8b2326613a68266c", "76AFIL4rBwgbWCIZbkTcMQ",
"64c87715d65b435a970bc96348d5824b", "8EsSVjVjAF4cY0TSeKY0RR",
"9b0b8a189a91422a8e38d14eedaea12f", "djiGctnwwIOcd2Jp0FlKV1",
"a469246fd76d49048cd60d257490e17f", "e79zn6dR1m4c5FnI171pOT",
"2d15d864ad9e4457bd6330709814112c", "3RZgwGf2YZ1gg6vB5xN4qE",
"cb53926dd43646038c6dbb3e74ee2116", "hsiIErt7Ugbc3uTE0IpQ3k",
"b8323d6dd2fa4e04a25630488be98d4f", "fOthA3kVltidW75oKalObB",
"f899b876c49d4c60bebe12244a5f432e", "llifXgqjtUkgnjH5HCCkOO",
"501b714d8ae2480585c7691ab4e3e862", "6SplayVXuFDbu6kQLkept8",
"603e6c5f1cd3427ebdb86b2efb49f677", "8giPs68iH0yghSnNPv7YyP",
"b664a528cbf14c7da8f897275acec917", "fESdjyjObnvevqAXbGlVk3",
"a25fb601f5ce454c8e5eab17cf748e66", "dWjmv2mdnPucdPwJcp9QHA",
"a26d5a248bc24b07a8899f126dc1ec11", "dWAWO6Kw9tZet7xrd9PIEp",
"5ff9110bf4f64a51a1af0e28182c4f78", "8eRpV41x8VrdSDCNutXOKk",
"c6f1495644064f70a315dd47bf8b024d", "h4XUOIUJFQse06bCLYYzrT",
"08a4bb5061d44f6b89eb457b58bf2c1e", "0K0yOOBu62TbQ8FduZp1xk",
"ebb628718eb24f158da315014bf59450", "keGB72glaiVc9VHmJgZYg8",
"ab85e2130a5c412f863f8b4861ea873c", "eJ0NdappLOfbwBcRlHKhJO",
"d54dbe2c2f384370bcb8515478ad742e", "ijprXzOkIP6gcyed18zVEi",
"2407c93c8a174d6b87220315c6742361", "35MV6LPhu0HbBj9X22Hqpz",
"16dad873afab4227b336107375d3ea7e", "1XEFk7dvD8zfnW5DJqGqxE",
"a3a2fd7814e64e1b8dff39776a94474f", "e327uRNbLKzcbQu6OxwHq7",
"58ec5d0b3015473fa9204a1c6190195c", "7DkRVTroOQfewfM0OYnGEY",
"92e9062b320b4017b94f467a7da02f1c", "cBZZi1TvhPxfUoJPNCTqJ6",
"c1bd3f2dc6f24b7b8995c46c6c432241", "gDgHN2ribrBbOmr3DPPjFf",
"d04edd2a0fd54f358d2daa7da69c9b57", "hSOLXgxKmclc7ukytvlQur",
"3e0d732589e64b519e4a100662143c62", "5kiRmzLuX3bdAzm6B06hqy",
"14fef83d656c431ba8895f432ad8d131", "1NLbBDN4cNZet7dw117ew1",
"1518b6425bbf4f369fabbc30b8bab33b", "1Oin845aYOGdHViny5kIdR",
"70a58e512dab4627a24ffb0ac891ec5c", "9FCaXSIDPZddVZ5cYzIscQ",
"5dc00d674b6f4527a9220639efa91412", "831RQVhoE7Bewi0FNjcUOC",
"7e7ad53ee3714c33ad4a442e3f38156c", "aRfrweQc5PBeSpZdtxVYcI",
"a964a82e36e0481bab7b372d7ab38559", "exFUtsNId1VeIN2zMyQmMx",
"45b5585078a9412aa050213184c2cb75", "5Z3tvNARA3EdLle4MSOfe5",
"0290dd7c3e9a4137a6d60758168ed63a", "0dENNGjwBAXek3ZsQjSQJ4",
"a30645520f60471b8066a86cb81efb14", "dZM5gkZJ1Uvb1tu0P3Ss28",
"6a1fd751df11451db1d9ae50dac46523", "96TEiBa0Mk5fgGY7rAkI1R",
"0cbd5b4593284a5ba35652006a7d692c", "15Op7cEbZere1rhrNsscck",
"df97ef02cc78483999277e3e5d12c541", "jcbl5jM7VBTd9eFr1Sts53",
"afeaa46cc671426c9c4ada2d594f4d1b", "f6oMLcmRV6sdpWkb3DNoyT",
"fc51cb0747c6415b9302d37442072458", "lF5D2fmfDMncCxfzXWw7UI",
"bf6ff305f352442586c9ef4dc1ffd002", "gr10wK2YtBXbztC7VNXMqu",
"31ed255daca04725978da73dd4f36a2f", "4hKV7V8zO7zd0IjPtv5meb",
"bb005f4117f44f2a8d12664426203613", "g3p4jDLUDuWc6VbcE5UbR1",
"f705b547feeb441580e59b3603c3100d", "lcTq7DbmakRb478IGNHPbv",
"9114bf70a33b4e36ad407a3970acae73", "csgiZhJyKLYeSdmOnBZiSf",
"70b44670c76748778dbe73351f9feb5c", "9FV9roYF035cauYPqoKPoM",
"8dd9ba6469094e63b8ee38788a2b866c", "cb496ypVgQ3fSnCsJWk6gk",
"b0cf5f3e4bf14b6d8c32aa44703f5344", "fb9EDcgUjeZc2gKBqaU1GQ",
"3e44001392fc4912b13f24476f312670", "5lrbsY2DyvwfdtK8zAWr3W",
"3e9d913809cd4b048425911ffa9df079", "5niEmgZzRgoblpFw5GBhZn",
"20c11b2fd1374763a0be260d17c7d076", "2OlJfObCyundND3Ey9Kage",
"cf230c7920a342439b8ae1036038cb69", "hMAgnBxtcAjdlWQaCG458B",
"c4deb07a88ca4b3d91e4795d3493f76a", "gTVTlCerL1XcwA65WXRm4i",
"4f3254359ea34d129332e347dd0b0f1a", "6NyOU6xA0g2cDxd3wjmuAG",
"08ad3b76cc204c40a7379506b87c9b34", "0KbwfGh8b3aem5KHmFmit6",
"1712282d336a4f4ba8bcee7856562840", "1YNYffFB4VBeubGxVv24lq",
"c566d95d5afb424085874e3003046b16", "gWLqirsmqUobsLH48gPt78",
"63c8de4409ad4f4fbda15b108389fa73", "8z9nChPE0HlghoEqJCM1fd",
"dae4d6331d60421d9b50cb6aa908e32c", "iNamaGzMj7LdkJXC80VRFO",
"3e034561b6da4c6e8a41ae1602e2f55b", "5k5JNqQOsjQbRW3FvEBmUX",
"3ea5082cdb254874b675ed468ed75c61", "5nsgZE6RTQ8fFeuBsXvnPP",
"79c9150789a7400eabe36b7b8176517d", "asgcc6XMYQmeKXnoQYZB8x",
"55c8ec4ed21a4102baf3ec316dda147c", "7mD6HbuG6ZQg391g2Lyug4",
"0585404d62af4b2a83303d3ccaeb192b", "0tnU5i1Gj4Cbgjp0EVMJVp",
"bcaaee6a88b84b6c8def84411f73cd2f", "gcgYgt7EfQ8cbweC7QZyYD",
"92656b3ccb914051a3fcc7236c4a4270", "czgknc8jUGte4TS2onbi2k",
"e8f1626f3e4d430e9653251d26f5a750", "jZWSovpi5EGcUaRRJFBEK4",
"f427407d20944333a8d79d2c32cd4829", "kXCADBJ9VYveuK5dnCJIvv",
"fbb9fb275e4c4b7380a4a50a7483112f", "lBVV23WOzdhb2LotRgbqDd",
"e8f35b022b884106b6f9622c3dbc4851", "jZZpVNY6fLUfHXXE3xrlDP",
"fda2120830ed4f5eaa965d4d02285355", "lM58X2i0luCeE210zqasXH",
"929c2b096dc74a098c136d004f471a74", "cAoUmii7c2Rc1CtIbXd588",
"f67f26769a034241aebae72388e59132", "la5XcHMKNnXf05dx4v4706",
"6595d21311b74f47b42fd4224d873503", "8IJCxepPJFJft84LlykZXB",
"4f0443560a83493fb47cdd53432c8353", "6MBqXkX1lcrfuJo4G1FUgb",
"2a17cd739c534b00b6f9cb7c25d1c81b", "3C3IoS5NrvafHYuwDBeXOj",
"fb9f0674369e41079a54da4ae3936276", "lBnavDvdFVJdfvarPUt7dY",
"6226830d904e4d77a050ab475fc99515", "8qs3jgkccK3dLlVbMhaQpT",
"c03b8d55cbe64815a2f1e86a52d8b85e", "gvfu3neQpDvdZlPHqwIoqi",
"38aea31e2e05466ba11fd3522e2eca14", "4RIvAz6a8S7dPEYKx0Cue8",
"c808482d10da4a76b6135c472d9e1a41", "haLAjFMkeCafDbqpf1kE7v",
"21916a3eab43406abb2550447195ad14", "2SGgVkU7nkKg4aGXWTYaR6",
"b5c6292aefa14d18b4c13068e0ddf61d", "fBzU0sH8jwsfw9t6FLbSAl",
"8bf5a8182abb4c6485afbf398695af0c", "c106klsiL8EbtBPtfbiL1i",
"61596e6c9f034a04a9291203c37ff179", "8mbFFm88hz6ewr5QF6o1XH",
"2f52d77b8a794d4aa249870fef8d6451", "43TWSLHhG7EdVQLqKe07cJ",
"5560c65f843a407a82661d308d0e6a7e", "7ksQmhtdoGCbc6PAhuoRFY",
"b33fc665e3854002bc3c34137b480e13", "fo8BNuThTpMg9Ye1ETbHW3",
"f35fab797250405aa9e6285415f11538", "kTtitCATBYSeAmRaN3uHa0",
"1d94c044240c49188686c34cd35aea6e", "2xsttFg0Cg0by51dY3Fmou",
"13aea6303a484434b338e10c9ea34f49", "1GLCeZz5aBKfnZICJ6pOBj",
NULL, NULL,
};
i = 0;
while (cmp[i] != NULL) {
zt_uuid_t uuid;
char * uuids = NULL;
zt_uuid_fromstr(cmp[i], &uuid, zt_uuid_short_fmt);
zt_uuid_tostr(&uuid, &uuids, zt_uuid_base62_fmt);
ZT_UNIT_ASSERT(test, strcmp(uuids, cmp[i + 1]) == 0);
zt_uuid_fromstr(cmp[i + 1], &uuid, zt_uuid_base62_fmt);
zt_uuid_tostr(&uuid, &uuids, zt_uuid_short_fmt);
ZT_UNIT_ASSERT(test, strcmp(uuids, cmp[i]) == 0);
i += 2;
}
}
{
int i;
char * cmp[] = {
"611e34722c264145a936a854984ea10c", "hoX7L4PjXk8ewIBQdYqnog",
"e8a29b34d94a43288a380d795da3a277", "q5KIA0PjjYjbRJEaJQtHvh",
"e40c0b36c5af463e8286a94686634e03", "ALiwJxB7TzjbcMN0MZJKi7",
"52a317170ad841448835a8351f276c75", "4UYChlegS57bH2vEIrFZxr",
"d026bd1056a74e60a0c8a63249d34e70", "ooWe6TO2ZRhdNQAWnbBswo",
"6bff38471eb54d1597d30513f358aa12", "HFxhIQZDRg9d29K97UR0EG",
"a99a8f28e4fb466a868d3346ee670e32", "oHI1MsLoNyebydjKIgtGZI",
"d2b65062269f4971a2474c1833d58454", "37htEnxbC5idVNTae6gRyA",
"52c58a378b7d446c8b2326613a68266c", "gwBr4LIFA67bWCIZbkTcMQ",
"64c87715d65b435a970bc96348d5824b", "4FAjVjVSsE8cY0TSeKY0RR",
"9b0b8a189a91422a8e38d14eedaea12f", "OIwwntcGijdcd2Jp0FlKV1",
"a469246fd76d49048cd60d257490e17f", "4m1Rd6nz97ec5FnI171pOT",
"2d15d864ad9e4457bd6330709814112c", "1ZY2fGwgZR3gg6vB5xN4qE",
"cb53926dd43646038c6dbb3e74ee2116", "bgU7trEIishc3uTE0IpQ3k",
"b8323d6dd2fa4e04a25630488be98d4f", "itlVk3AhtOfdW75oKalObB",
"f899b876c49d4c60bebe12244a5f432e", "kUtjqgXfillgnjH5HCCkOO",
"501b714d8ae2480585c7691ab4e3e862", "DFuXVyalpS6bu6kQLkept8",
"603e6c5f1cd3427ebdb86b2efb49f677", "y0Hi86sPig8ghSnNPv7YyP",
"b664a528cbf14c7da8f897275acec917", "vnbOjyjdSEfevqAXbGlVk3",
"a25fb601f5ce454c8e5eab17cf748e66", "uPndm2vmjWdcdPwJcp9QHA",
"a26d5a248bc24b07a8899f126dc1ec11", "Zt9wK6OWAWdet7xrd9PIEp",
"5ff9110bf4f64a51a1af0e28182c4f78", "rV8x14VpRe8dSDCNutXOKk",
"c6f1495644064f70a315dd47bf8b024d", "sQFJUIOUX4he06bCLYYzrT",
"08a4bb5061d44f6b89eb457b58bf2c1e", "T26uBOOy0K0bQ8FduZp1xk",
"ebb628718eb24f158da315014bf59450", "Vialg27BGekc9VHmJgZYg8",
"ab85e2130a5c412f863f8b4861ea873c", "fOLppadN0JebwBcRlHKhJO",
"d54dbe2c2f384370bcb8515478ad742e", "6PIkOzXrpjigcyed18zVEi",
"2407c93c8a174d6b87220315c6742361", "H0uhPL6VM53bBj9X22Hqpz",
"16dad873afab4227b336107375d3ea7e", "z8Dvd7kFEX1fnW5DJqGqxE",
"a3a2fd7814e64e1b8dff39776a94474f", "zKLbNRu723ecbQu6OxwHq7",
"58ec5d0b3015473fa9204a1c6190195c", "fQOorTVRkD7ewfM0OYnGEY",
"92e9062b320b4017b94f467a7da02f1c", "xPhvT1iZZBcfUoJPNCTqJ6",
"c1bd3f2dc6f24b7b8995c46c6c432241", "Brbir2NHgDgbOmr3DPPjFf",
"d04edd2a0fd54f358d2daa7da69c9b57", "lcmKxgXLOShc7ukytvlQur",
"3e0d732589e64b519e4a100662143c62", "b3XuLzmRik5dAzm6B06hqy",
"14fef83d656c431ba8895f432ad8d131", "ZNc4NDBbLN1et7dw117ew1",
"1518b6425bbf4f369fabbc30b8bab33b", "GOYa548niO1dHViny5kIdR",
"70a58e512dab4627a24ffb0ac891ec5c", "dZPDISXaCF9dVZ5cYzIscQ",
"5dc00d674b6f4527a9220639efa91412", "B7EohVQR138ewi0FNjcUOC",
"7e7ad53ee3714c33ad4a442e3f38156c", "BP5cQewrfRaeSpZdtxVYcI",
"a964a82e36e0481bab7b372d7ab38559", "V1dINstUFxeeIN2zMyQmMx",
"45b5585078a9412aa050213184c2cb75", "E3ARANvt3Z5dLle4MSOfe5",
"0290dd7c3e9a4137a6d60758168ed63a", "XABwjGNNEd0ek3ZsQjSQJ4",
"a30645520f60471b8066a86cb81efb14", "vU1JZkg5MZdb1tu0P3Ss28",
"6a1fd751df11451db1d9ae50dac46523", "5kM0aBiET69fgGY7rAkI1R",
"0cbd5b4593284a5ba35652006a7d692c", "reZbEc7pO51e1rhrNsscck",
"df97ef02cc78483999277e3e5d12c541", "TBV7Mj5lbcjd9eFr1Sts53",
"afeaa46cc671426c9c4ada2d594f4d1b", "s6VRmcLMo6fdpWkb3DNoyT",
"fc51cb0747c6415b9302d37442072458", "nMDfmf2D5FlcCxfzXWw7UI",
"bf6ff305f352442586c9ef4dc1ffd002", "XBtY2Kw01rgbztC7VNXMqu",
"31ed255daca04725978da73dd4f36a2f", "z7Oz8V7VKh4d0IjPtv5meb",
"bb005f4117f44f2a8d12664426203613", "WuDULDj4p3gc6VbcE5UbR1",
"f705b547feeb441580e59b3603c3100d", "RkambD7qTclb478IGNHPbv",
"9114bf70a33b4e36ad407a3970acae73", "YLKyJhZigsceSdmOnBZiSf",
"70b44670c76748778dbe73351f9feb5c", "530FYor9VF9cauYPqoKPoM",
"8dd9ba6469094e63b8ee38788a2b866c", "3QgVpy694bcfSnCsJWk6gk",
"b0cf5f3e4bf14b6d8c32aa44703f5344", "ZejUgcDE9bfc2gKBqaU1GQ",
"3e44001392fc4912b13f24476f312670", "wvyD2Ysbrl5fdtK8zAWr3W",
"3e9d913809cd4b048425911ffa9df079", "ogRzZgmEin5blpFw5GBhZn",
"20c11b2fd1374763a0be260d17c7d076", "nuyCbOfJlO2dND3Ey9Kage",
"cf230c7920a342439b8ae1036038cb69", "jActxBngAMhdlWQaCG458B",
"c4deb07a88ca4b3d91e4795d3493f76a", "X1LreClTVTgcwA65WXRm4i",
"4f3254359ea34d129332e347dd0b0f1a", "2g0Ax6UOyN6cDxd3wjmuAG",
"08ad3b76cc204c40a7379506b87c9b34", "a3b8hGfwbK0em5KHmFmit6",
"1712282d336a4f4ba8bcee7856562840", "BV4BFffYNY1eubGxVv24lq",
"c566d95d5afb424085874e3003046b16", "oUqmsriqLWgbsLH48gPt78",
"63c8de4409ad4f4fbda15b108389fa73", "lH0EPhCn9z8ghoEqJCM1fd",
"dae4d6331d60421d9b50cb6aa908e32c", "L7jMzGamaNidkJXC80VRFO",
"3e034561b6da4c6e8a41ae1602e2f55b", "QjsOQqNJ5k5bRW3FvEBmUX",
"3ea5082cdb254874b675ed468ed75c61", "8QTR6EZgsn5fFeuBsXvnPP",
"79c9150789a7400eabe36b7b8176517d", "mQYMX6ccgsaeKXnoQYZB8x",
"55c8ec4ed21a4102baf3ec316dda147c", "QZ6GubH6Dm7g391g2Lyug4",
"0585404d62af4b2a83303d3ccaeb192b", "C4jG1i5Unt0bgjp0EVMJVp",
"bcaaee6a88b84b6c8def84411f73cd2f", "8QfE7tgYgcgcbweC7QZyYD",
"92656b3ccb914051a3fcc7236c4a4270", "tGUj8cnkgzce4TS2onbi2k",
"e8f1626f3e4d430e9653251d26f5a750", "GE5ipvoSWZjcUaRRJFBEK4",
"f427407d20944333a8d79d2c32cd4829", "vYV9JBDACXkeuK5dnCJIvv",
"fbb9fb275e4c4b7380a4a50a7483112f", "hdzOW32VVBlb2LotRgbqDd",
"e8f35b022b884106b6f9622c3dbc4851", "ULf6YNVpZZjfHXXE3xrlDP",
"fda2120830ed4f5eaa965d4d02285355", "Cul0i2X85MleE210zqasXH",
"929c2b096dc74a098c136d004f471a74", "R2c7iimUoAcc1CtIbXd588",
"f67f26769a034241aebae72388e59132", "XnNKMHcX5alf05dx4v4706",
"6595d21311b74f47b42fd4224d873503", "JFJPpexCJI8ft84LlykZXB",
"4f0443560a83493fb47cdd53432c8353", "rcl1XkXqBM6fuJo4G1FUgb",
"2a17cd739c534b00b6f9cb7c25d1c81b", "avrN5SoI3C3fHYuwDBeXOj",
"fb9f0674369e41079a54da4ae3936276", "JVFdvDvanBldfvarPUt7dY",
"6226830d904e4d77a050ab475fc99515", "3Kcckgj3sq8dLlVbMhaQpT",
"c03b8d55cbe64815a2f1e86a52d8b85e", "vDpQen3ufvgdZlPHqwIoqi",
"38aea31e2e05466ba11fd3522e2eca14", "7S8a6zAvIR4dPEYKx0Cue8",
"c808482d10da4a76b6135c472d9e1a41", "aCekMFjALahfDbqpf1kE7v",
"21916a3eab43406abb2550447195ad14", "Kkn7UkVgGS2g4aGXWTYaR6",
"b5c6292aefa14d18b4c13068e0ddf61d", "swj8Hs0UzBffw9t6FLbSAl",
"8bf5a8182abb4c6485afbf398695af0c", "E8Lislk601cbtBPtfbiL1i",
"61596e6c9f034a04a9291203c37ff179", "6zh88mFFbm8ewr5QF6o1XH",
"2f52d77b8a794d4aa249870fef8d6451", "E7GhHLSWT34dVQLqKe07cJ",
"5560c65f843a407a82661d308d0e6a7e", "CGodthmQsk7bc6PAhuoRFY",
"b33fc665e3854002bc3c34137b480e13", "MpThTuNB8ofg9Ye1ETbHW3",
"f35fab797250405aa9e6285415f11538", "SYBTACtitTkeAmRaN3uHa0",
"1d94c044240c49188686c34cd35aea6e", "0gC0gFttsx2by51dY3Fmou",
"13aea6303a484434b338e10c9ea34f49", "KBa5zZeCLG1fnZICJ6pOBj",
NULL, NULL,
};
i = 0;
while (cmp[i] != NULL) {
zt_uuid_t uuid;
char * uuids = NULL;
zt_uuid_fromstr(cmp[i], &uuid, zt_uuid_short_fmt);
zt_uuid_tostr(&uuid, &uuids, zt_uuid_base62_hashable_fmt);
ZT_UNIT_ASSERT(test, strcmp(uuids, cmp[i + 1]) == 0);
zt_uuid_fromstr(cmp[i + 1], &uuid, zt_uuid_base62_hashable_fmt);
zt_uuid_tostr(&uuid, &uuids, zt_uuid_short_fmt);
ZT_UNIT_ASSERT(test, strcmp(uuids, cmp[i]) == 0);
i += 2;
}
}
} /* uuid_generic_tests */
int
register_uuid_suite(struct zt_unit * unit) {
struct zt_unit_suite * suite;
suite = zt_unit_register_suite(unit, "uuid tests", NULL, NULL, NULL);
zt_unit_register_test(suite, "uuid4", uuid4_tests);
zt_unit_register_test(suite, "uuid5", uuid5_tests);
zt_unit_register_test(suite, "uuid_generic", uuid_generic_tests);
return 0;
}
|
93 | ./libzt/examples/hexdump.c | #include <zt.h>
#include <string.h>
int
main(int argc UNUSED, char * argv[] UNUSED) {
char * ALPHA = "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ";
char * ALPHA2 = "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ";
zt_hexdump_str(ALPHA, strlen(ALPHA), NULL, NULL);
zt_hexdump_str(ALPHA2, strlen(ALPHA2), NULL, NULL);
#if 0
{
FILE * fp;
if ((fp = fopen(argv[0], "r")) != NULL) {
zt_hexdump((int (*)(void*))fgetc, fp, NULL, NULL);
fclose(fp);
}
}
#endif
/* f = zt_hex_dump(ALPHA, strlen(ALPHA), 16), printf("%s\n", f), free(f); */
/* f = zt_hex_dump(ALPHA, strlen(ALPHA), 32), printf("%s\n", f), free(f); */
/* f = zt_hex_dump(ALPHA, strlen(ALPHA), 50), printf("%s\n", f), free(f); */
/* f = zt_hex_dump(ALPHA, strlen(ALPHA), 64), printf("%s\n", f), free(f); */
return 0;
}
|
94 | ./libzt/examples/mem_pools.c | /*
* Copyright (C) 2000-2004, Jason L. Shiffer <jshiffer@zerotao.com>. All Rights Reserved.
* See file COPYING for details.
*
* $Id$
*
*/
/*
* Description:
*/
#include <stdio.h>
#include <string.h>
#include <zt.h>
#include <zt_internal.h>
struct pool_test {
int one;
int two;
int three;
};
#define NPTEST 100
#define NSIZE(x) (sizeof(char) * x)
zt_mem_pool_desc pool_group[] = {
{ "64", 0, NSIZE(64), 0, 0, 0 },
{ "128", 0, NSIZE(128), 0, 0, 0 },
{ "256", 0, NSIZE(256), 0, 0, 0 },
{ "512", 0, NSIZE(512), 0, 0, 0 },
{ "1024", 0, NSIZE(1024), 0, 0, 0 },
{ "2048", 0, NSIZE(2048), 0, 0, 0 },
{ "4096", 0, NSIZE(4096), 0, 0, 0 },
{ 0, 0, 0, 0, 0, 0 }
};
int
main(int argc UNUSED, char *argv[] UNUSED)
{
struct zt_mem_heap * heap;
struct zt_mem_pool * pool;
struct zt_mem_pool * tpool;
struct zt_mem_pool_group * group;
struct pool_test * data[NPTEST];
int i;
heap = zt_mem_heap_init("testheap", 1024 * sizeof(char));
if (heap) {
printf("%s\n", zt_mem_heap_get_name(heap));
} else {
printf("failed to alloc a heap\n");
return -1;
}
group = zt_mem_pool_group_init(pool_group, sizeof_array(pool_group) - 1);
if (!group) {
printf("group alloc failed");
} else {
void * elt;
void * elt2;
void * elt3;
elt = zt_mem_pool_group_alloc(group, sizeof(char) * 257);
zt_mem_pool_group_display(0, group, 0);
elt2 = zt_mem_pool_group_alloc(group, sizeof(char));
elt3 = zt_mem_pool_group_alloc(group, sizeof(char) * 4097);
zt_mem_pool_group_display(0, group, 0);
/* pools will be released during group_destory but can be released directly */
zt_mem_pool_group_release(&elt);
zt_mem_pool_group_release(&elt2);
zt_mem_pool_group_release(&elt3);
zt_mem_pool_group_destroy(group);
}
tpool = zt_mem_pool_init("testpool", 4092, sizeof(struct pool_test), NULL, NULL, 0);
/* element size is > normal system page size*/
pool = zt_mem_pool_init("pool2", 3, sizeof(struct pool_test) + 4092, NULL, NULL, 0);
printf("*INIT*\n");
printf("pool lookup: ");
if (tpool == zt_mem_pool_get("testpool")) {
printf("success\n");
} else {
printf("failed\n");
}
zt_mem_pools_display(0, DISPLAY_POOL_HEADER_ONLY);
for (i = 0; i < NPTEST; i++) {
data[i] = zt_mem_pool_alloc(pool);
memset(data[i], 0, sizeof(struct pool_test)+4092);
data[i]->one = i;
data[i]->two = i * 100;
data[i]->three = i * 1000;
}
printf("*ALLOC*\n");
zt_mem_pools_display(0, DISPLAY_POOL_HEADER_ONLY);
for (i = 0; i < NPTEST; i++) {
void *dp = data[i];
zt_mem_pool_release(&(dp));
}
printf("*RELEASE*\n");
zt_mem_pool_destroy(&tpool);
zt_mem_pools_display(0, DISPLAY_POOL_HEADER_ONLY);
zt_mem_pool_destroy(&pool);
zt_mem_pools_display(0, DISPLAY_POOL_HEADER_ONLY);
zt_mem_heap_destroy(&heap);
return 0;
} /* main */
|
95 | ./libzt/examples/base64_speed.c | #include <stdlib.h>
#include <time.h>
#include <stdio.h>
#include <zt.h>
#define kBufSz 4096
static void
test_base64_speed(void) {
unsigned char iBuf[kBufSz];
const size_t n = kBufSz;
size_t i;
const long long kIterations = 2621440;
const long long nGigs = (kIterations * kBufSz) / (1024 * 1024 * 1024);
srand(11);
for (i=0; i<n; ++i) {
iBuf[i] = rand() % 256;
}
{
time_t s = time(NULL);
time_t e;
int i;
for (i = 0; i < kIterations; ++i) {
char obuff[kBufSz * 2];
size_t oBufSz = kBufSz * 2;
char **voidsux = (char **)&obuff;
zt_base64_encode((void *)iBuf, n, (void **)&voidsux, &oBufSz);
}
e = time(NULL);
printf("zt64 Encoding : %lld gigs in %ld seconds.\n", nGigs, (e - s));
}
{
char oBuf[kBufSz * 2];
size_t oBufSz = kBufSz * 2;
time_t s, e;
int i;
char** voidsux = (char**)&oBuf;
void **rptr = (void **)&voidsux;
zt_base64_encode((void*)iBuf, n, rptr, &oBufSz);
s = time(NULL);
for (i=0; i < kIterations; ++i)
{
size_t tBufSz = kBufSz * 2;
char** voidsux = (char**)&iBuf;
zt_base64_decode(oBuf, oBufSz, (void**)&voidsux, &tBufSz);
}
e = time(NULL);
printf("zt64 Decoding: %lld gigs in %ld seconds.\n", nGigs, (e - s));
}
}
int
main(int argc, char **argv) {
test_base64_speed();
return 0;
}
|
96 | ./libzt/examples/threads.c | #include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <stdint.h>
#include <errno.h>
#include <zt.h>
zt_threads_mutex *mutex;
void *
example_thread_cb(void *_data) {
char *data = (char *)_data;
while (1) {
/* lock the mutex */
zt_threads_lock(0, mutex);
printf("id=%lu data=%s\n", zt_threads_id(), data);
zt_threads_unlock(0, mutex);
usleep(80000);
}
zt_threads_end(NULL);
return NULL;
}
void *
example_init_cb(void *args UNUSED) {
return (void *)"example init data";
}
void *
example_iput_work_cb(void *init_data, void *data) {
printf("iput_worker: id = %lu init_data = %s, data = %s\n",
zt_threads_id(), (char *)init_data, (char *)data);
return "sending to oput";
}
void *
example_oput_work_cb(void *init_data UNUSED, void *data) {
printf("oput_worker: id = %lu data = %s\n",
zt_threads_id(), (char *)data);
return "sending to finalizer";
}
void example_finalizer(void *init_data UNUSED, void *data) {
printf("finalized: %s\n", (char *)data);
}
int main(int argc UNUSED, char **argv UNUSED) {
/* tell libzt to use pthreads */
zt_threads_use_pthreads();
int i;
zt_threads_thread *thread1;
zt_threads_thread *thread2;
/* allocate a mutex */
mutex = zt_threads_alloc_lock(0);
/* allocate some threads */
thread1 = zt_threads_alloc_thread();
thread2 = zt_threads_alloc_thread();
/* start up the threads */
zt_threads_start(thread1, NULL, example_thread_cb, (void *)"one");
zt_threads_start(thread2, NULL, example_thread_cb, (void *)"two");
/* loop for a few */
for (i = 0; i <= 2; i++) {
printf("parent...\n");
sleep(1);
}
zt_threads_kill(thread1);
zt_threads_kill(thread2);
/* lets do some threadpools */
{
zt_threadpool *tpool;
struct zt_threadpool_callbacks tpcbs = {
NULL, /* input queue looper */
NULL, /* output queue looper */
example_init_cb, /* thread data initializer */
example_iput_work_cb, /* processes data from an input queue */
example_oput_work_cb, /* processes data from an output queue */
example_finalizer /* called after oput worker to finalize data */
};
/* set our callbacks, leave the threadpool looper function to default (NULL) */
zt_threadpool_set_callbacks(&tpcbs);
/* create a threadpool with five listeners, also don't create
* pipe based signaling */
tpool = zt_threadpool_init(5, 5, 0, 0);
/* start up the threadpool */
printf("-------- starting test threadpool -------------\n");
zt_threadpool_start(tpool);
for (i = 0; i <= 20; i++) {
zt_threadpool_insert_iput(tpool, (void *)"blah");
usleep(90000);
}
}
return 0;
} /* main */
|
97 | ./libzt/examples/mem_timing.c | /*
* Copyright (C) 2000-2005, Jason L. Shiffer <jshiffer@zerotao.com>. All Rights Reserved.
* See file COPYING for details.
*
* $Id$
*
*/
/*
* Description:
*/
#include <stdio.h>
#include <stdlib.h>
#if !defined(WIN32)
# include <sys/time.h> /* gettimeofday */
# include <sys/resource.h>
#endif
#include <zt.h>
struct test_data_t {
long size;
int n;
struct zt_mem_pool * pool;
void **parr;
};
void
timetest(char *name, int n, void *(*test)(void *), void *data)
{
struct time_result result;
zt_time(n, &result, test, data);
zt_time_print_result(&result, name, n);
}
void *
test_malloc(void *data)
{
struct test_data_t * td = data;
size_t size = td->size;
int i;
for (i = 0; i < td->n; i++) {
td->parr[i] = malloc(size);
}
for (i = 0; i < td->n; i++) {
free(td->parr[i]);
}
return 0;
}
void *
test_pool(void *data)
{
struct test_data_t * td = data;
struct zt_mem_pool * pool = td->pool;
int i;
for (i = 0; i < td->n; i++) {
td->parr[i] = zt_mem_pool_alloc(pool);
}
for (i = 0; i < td->n; i++) {
zt_mem_pool_release(&(td->parr[i]));
}
return 0;
}
#define NPTEST 10000
#define NPLOOP 500
int
main(int argc UNUSED, char *argv[] UNUSED)
{
struct test_data_t td_small;
struct test_data_t td_large;
void **parr;
parr = (void **)calloc(NPTEST + 1, sizeof(void *));
td_small.parr = parr;
td_small.size = sizeof(int);
td_small.n = NPTEST;
td_large.parr = parr;
td_large.size = 150 * sizeof(int);
td_large.n = NPTEST;
timetest("malloc_small", NPLOOP, test_malloc, (void *)&td_small);
timetest("malloc_large", NPLOOP, test_malloc, (void *)&td_large);
/* I do not do these until here so that malloc has free reign on memory
* on at least one machine this made the difference between malloc taking
* 27 seconds versus 16 after the move.
*/
td_small.pool = zt_mem_pool_init("small_pool", 412, td_small.size, NULL, NULL, POOL_NEVER_FREE);
td_large.pool = zt_mem_pool_init("large_pool", 100, td_large.size, NULL, NULL, POOL_NEVER_FREE);
timetest("pool_alloc_small", NPLOOP, test_pool, (void *)&td_small);
timetest("pool_alloc_large", NPLOOP, test_pool, (void *)&td_large);
zt_mem_pools_display(0, DISPLAY_POOL_HEADER_ONLY);
zt_mem_pool_destroy(&td_small.pool);
zt_mem_pool_destroy(&td_large.pool);
free(parr);
return 0;
}
|
98 | ./libzt/examples/abort.c | #include <zt.h>
int
main(void) {
zt_abort("This will always fail");
return 0;
}
|
99 | ./libzt/examples/log_syslog.c | /*
* Copyright (C) 2000-2004, Jason L. Shiffer <jshiffer@zerotao.com>. All Rights Reserved.
* See file COPYING for details.
*
* $Id: zt_log_test.c,v 1.7 2003/11/26 15:45:10 jshiffer Exp $
*
*/
/*
* Description:
*/
#include <string.h>
#define ZT_WITH_UNIT
#include <zt.h>
int
main(int argc, char **argv) {
char position1[255];
char position2[255];
zt_log_ty * logger;
zt_log_ty * lsyslog;
/* set the progname before calling syslog */
zt_progname(argv[0], STRIP_DIR);
lsyslog = zt_log_syslog();
logger = zt_log_logger(lsyslog);
zt_log_set_level(lsyslog, zt_log_debug);
zt_log_printf( zt_log_emerg, "*emergency* message" );
zt_log_printf( zt_log_alert, "*alert* message" );
zt_log_printf( zt_log_crit, "*critical* message" );
zt_log_printf( zt_log_err, "*error* message" );
zt_log_printf( zt_log_warning, "*warning* message" );
zt_log_printf( zt_log_notice, "*notice* message" );
zt_log_printf( zt_log_info, "*info* message" );
zt_log_printf( zt_log_debug, "*debug* message" );
zt_log_set_opts(lsyslog, (ZT_LOG_RAW));
/* these need to be on the same line for the test to work */
sprintf(position1, "(%s:%d)", __FILE__, __LINE__); ZT_LOG_XDEBUG( "LOG_DEBUG" );
sprintf(position2, "(%s:%d)", __FILE__, __LINE__); ZT_LOG_DEBUG_INFO(), zt_log_lprintf(lsyslog, zt_log_debug, "lprintf with debugging");
zt_log_close(lsyslog);
zt_log_logger(logger);
return 0;
} /* basic_tests */
|
100 | ./libzt/src/zt_cstr.c | /*!
* Filename: zt_cstr.c
* Description: C String Utilities
*
* Author: Jason L. Shiffer <jshiffer@zerotao.org>
* Copyright:
* Copyright (C) 2000-2010, Jason L. Shiffer.
* See file COPYING for details
*
* Notes:
*
*/
#include "zt.h"
#include "zt_internal.h"
#ifdef HAVE_CONFIG_H
#include <zt_config.h>
#endif
#ifdef HAVE_STRING_H
#include <string.h>
#endif
#ifdef HAVE_STRINGS_H
#include <strings.h>
#endif
#include <ctype.h>
/*!
* generate an index based on an index statement i, j and length len
*/
/*!
* update s, i and j
*/
#define CONVERT(s, i, j) do { \
size_t len; \
zt_assert(s); \
len = strlen(s); \
if (len > 0) { \
i = IDX(i, len); \
j = IDX(j, len); \
if (i > j) { \
ssize_t t = i; \
i = j; \
j = t; \
} \
zt_assert(i >= 0 && j < (ssize_t)len); \
} else { \
i = 0; \
j = 0; \
} \
} while (0)
/* #define IDXLEN(i, j) ((i) < (j) ? ((j) - (i)) + 1 : ((i) - (j)) + 1) */
static INLINE size_t
IDXLEN(ssize_t i, ssize_t j) {
ssize_t r;
if (i < j) {
r = (j - i) + 1;
} else {
r = (i - j) + 1;
}
zt_assert(r > 0);
return (size_t)r;
}
/* #define BASE(i, len) ((i) >= (ssize_t)(len) ? (len - 1) : (i)) */
static INLINE ssize_t
BASE(ssize_t i, size_t len) {
if ( i >= (ssize_t)len ) {
return len - 1;
}
return i;
}
/* #define IDX(i, len) ((i) < 0 ? BASE((i) + (len), (len)) : BASE((i), (len))) */
static ssize_t
IDX(ssize_t i, size_t len) {
ssize_t r;
if(i < 0) {
r = BASE(i+len, len);
} else {
r = BASE(i, len);
}
return r;
}
/*!
* return a newly allocated substring
*/
char *
zt_cstr_sub(const char *s, ssize_t i, ssize_t j) {
char * new;
char * p;
CONVERT(s, i, j);
new = zt_malloc(char, IDXLEN(i, j) + 1);
p = new;
while (i <= j) {
*p++ = s[i++];
}
*p = '\0';
return new;
}
/*!
* return a newly allocated string containing n copies of s[i:j] plus NUL
*/
char *
zt_cstr_dup(const char *s, ssize_t i, ssize_t j, ssize_t n) {
ssize_t k;
char * new;
char * p;
zt_assert(n >= 0);
if (!s) {
return NULL;
}
CONVERT(s, i, j);
p = new = zt_malloc(char, (n * IDXLEN(i, j)) + 1);
if (IDXLEN(i, j) > 0) {
while (n-- > 0) {
for (k = i; k <= j; k++) {
*p++ = s[k];
}
}
}
*p = '\0';
return new;
}
/*!
* return a newly allocated string containing s1[i1:j1]s2[i2:j2]
*/
char *
zt_cstr_cat(const char *s1, ssize_t i1, ssize_t j1,
const char *s2, ssize_t i2, ssize_t j2) {
char * new;
char * p;
CONVERT(s1, i1, j1);
CONVERT(s2, i2, j2);
p = new = zt_malloc(char, IDXLEN(i1, j1) + IDXLEN(i2, j2) + 1);
while (i1 <= j1) {
*p++ = s1[i1++];
}
while (i2 <= j2) {
*p++ = s2[i2++];
}
*p = '\0';
return new;
}
/*!
* return a newly allocated string containing s[i:j]s1[i1:j1]...sn[in:jn]
*/
char *
zt_cstr_catv(const char *s, ...) {
char * new;
char * p;
const char * save = s;
ssize_t i;
ssize_t j;
size_t len = 0;
va_list ap;
va_start(ap, s);
/* calculate the lentgh */
while (s) {
i = va_arg(ap, int);
j = va_arg(ap, int);
CONVERT(s, i, j);
len += IDXLEN(i, j) + 1;
s = va_arg(ap, const char *);
}
va_end(ap);
p = new = zt_malloc(char, len + 1);
s = save;
va_start(ap, s);
while (s) {
i = va_arg(ap, int);
j = va_arg(ap, int);
CONVERT(s, i, j);
while (i <= j) {
*p++ = s[i++];
}
s = va_arg(ap, const char *);
}
*p = '\0';
return new;
}
/*!
* returns a newly allocated string containing the reverse of s[i:j]
*/
char *
zt_cstr_reverse(const char *s, ssize_t i, ssize_t j) {
char * new;
char * p;
CONVERT(s, i, j);
p = new = zt_malloc(char, IDXLEN(i, j) + 1);
while (i <= j) {
*p++ = s[j--];
}
*p = '\0';
return new;
}
/*!
* returns a newly allocated string containing convert(s[i:j], from, to) where the chars in from are
* converted to the corrisponding chars in to.
* returns NULL on failure
*/
char *
zt_cstr_map(const char *s, ssize_t i, ssize_t j,
const char *from, const char *to) {
unsigned char map[256] = { 0, 1, 2, 3, 4, 5, 6, 7, 8, 9,
10, 11, 12, 13, 14, 15, 16, 17, 18, 19,
20, 21, 22, 23, 24, 25, 26, 27, 28, 29,
30, 31, 32, 33, 34, 35, 36, 37, 38, 39,
40, 41, 42, 43, 44, 45, 46, 47, 48, 49,
50, 51, 52, 53, 54, 55, 56, 57, 58, 59,
60, 61, 62, 63, 64, 65, 66, 67, 68, 69,
70, 71, 72, 73, 74, 75, 76, 77, 78, 79,
80, 81, 82, 83, 84, 85, 86, 87, 88, 89,
90, 91, 92, 93, 94, 95, 96, 97, 98, 99,
100, 101, 102, 103, 104, 105, 106, 107, 108, 109,
110, 111, 112, 113, 114, 115, 116, 117, 118, 119,
120, 121, 122, 123, 124, 125, 126, 127, 128, 129,
130, 131, 132, 133, 134, 135, 136, 137, 138, 139,
140, 141, 142, 143, 144, 145, 146, 147, 148, 149,
150, 151, 152, 153, 154, 155, 156, 157, 158, 159,
160, 161, 162, 163, 164, 165, 166, 167, 168, 169,
170, 171, 172, 173, 174, 175, 176, 177, 178, 179,
180, 181, 182, 183, 184, 185, 186, 187, 188, 189,
190, 191, 192, 193, 194, 195, 196, 197, 198, 199,
200, 201, 202, 203, 204, 205, 206, 207, 208, 209,
210, 211, 212, 213, 214, 215, 216, 217, 218, 219,
220, 221, 222, 223, 224, 225 };
if (from && to) {
while (*from && *to) {
map[(unsigned char)*from++] = *to++;
}
zt_assert(*from == 0 && *to == 0);
}
if (s) {
char * new;
char * p;
CONVERT(s, i, j);
p = new = zt_malloc(char, IDXLEN(i, j) + 1);
while (i <= j) {
*p++ = map[(unsigned char)s[i++]];
}
*p = '\0';
return new;
}
return NULL;
} /* zt_cstr_map */
/*!
* returns the index into s that i corrisponds to.
*/
size_t
zt_cstr_pos(const char *s, ssize_t i) {
size_t len;
zt_assert(s);
len = strlen(s);
i = (ssize_t)IDX(i, len);
zt_assert(i >= 0 && (size_t)i <= len);
return (size_t)i;
}
/*!
* returns the length of the slice represented by [i:j]
*/
size_t
zt_cstr_len(const char *s, ssize_t i, ssize_t j) {
CONVERT(s, i, j);
return IDXLEN(i, j);
}
/*!
* return -1, 0, 1 if s1[i1:j1] is lexically less then, equal to or
* greater then s2[i2:j2]
*/
int
zt_cstr_cmp(const char *s1, ssize_t i1, ssize_t j1,
const char *s2, ssize_t i2, ssize_t j2) {
CONVERT(s1, i1, j1);
CONVERT(s2, i2, j2);
s1 += i1;
s2 += i2;
if (j1 - i1 < j2 - i2) {
int cond = strncmp(s1, s2, IDXLEN(i1, j1));
return cond == 0 ? -1 : cond;
} else if (j1 - i1 > j2 - i2) {
int cond = strncmp(s1, s2, IDXLEN(i2, j2));
return cond == 0 ? +1 : cond;
}
return strncmp(s1, s2, j1 - i1);
}
/*!
* locates the position of the first occurrence of c
* in the string referenced by s[i:j]
*/
size_t
zt_cstr_chr(const char *s, ssize_t i, ssize_t j, int c) {
zt_assert(s);
CONVERT(s, i, j);
for (; i <= j; i++) {
if (s[i] == c) {
return (size_t)i;
}
}
return 0;
}
/*!
* locates the last occurrence of c in the string referenced by s[i:j]
*/
size_t
zt_cstr_rchr(const char *s, ssize_t i, ssize_t j, int c) {
zt_assert(s);
CONVERT(s, i, j);
for (; j >= i; j--) {
if (s[j] == c) {
return j;
}
}
return 0;
}
/*!
* locates the first occurrence of any char in set in the string
* referenced by s[i:j]
*/
ssize_t
zt_cstr_upto(const char *s, ssize_t i, ssize_t j, const char *set) {
zt_assert(set);
CONVERT(s, i, j);
for (; i <= j; i++) {
if (strchr(set, s[i])) {
return i;
}
}
return -1;
}
/*!
* locates the last occurrence of any char in set in the string referenced
* by s[i:j]
*/
ssize_t
zt_cstr_rupto(const char *s, ssize_t i, ssize_t j, const char *set) {
zt_assert(set);
CONVERT(s, i, j);
for (; j >= i; j--) {
if (strchr(set, s[j])) {
return j;
}
}
return -1;
}
/*!
* locates the first occurrence of the string str in the string referenced
* by s[i:j]
*/
ssize_t
zt_cstr_find(const char *s, ssize_t i, ssize_t j, const char *str) {
size_t len;
CONVERT(s, i, j);
zt_assert(str);
len = strlen(str);
if (len == 0) {
return -1;
} else if (len == 1) {
for (; i <= j; i++) {
if (s[i] == *str) {
return i;
}
}
}
for (; (ssize_t)(i + len) <= (j + 1); i++) {
if (strncmp(&s[i], str, len) == 0) {
return i;
}
}
return -1;
}
/*!
* locates the first occurrence of the string str (in reverse) in the string referenced
* by s[i:j]
*/
ssize_t
zt_cstr_rfind(const char *s, ssize_t i, ssize_t j, const char *str) {
size_t len;
ssize_t offt;
zt_assert(str);
CONVERT(s, i, j);
len = strlen(str);
if (len == 0) {
return -1;
}
if (len == 1) {
for (; j >= i; j--) {
if (s[j] == *str) {
return j;
}
}
}
for (offt = j - len + 1; offt >= i; offt--) {
if (strncmp(&s[offt], str, len) == 0) {
return offt;
}
}
return -1;
}
/*!
* locates the first occurrence of any char in set in the string
* referenced by s[i:j]
*/
ssize_t
zt_cstr_any(const char *s, ssize_t i, ssize_t j, const char *set) {
zt_assert(s);
zt_assert(set);
CONVERT(s, i, j);
zt_assert(i >= 0 && i <= j);
for (; i <= j; i++) {
if (s[i] != '\0' && strchr(set, s[i])) {
return i;
}
}
return -1;
}
/*!
* locates the last occurrence of any char in set in the string
* referenced by s[i]
*/
ssize_t
zt_cstr_rany(const char *s, ssize_t i, ssize_t j, const char *set) {
ssize_t orig;
zt_assert(s);
zt_assert(set);
CONVERT(s, i, j);
zt_assert(i >= 0 && i <= j);
for (orig = i; j >= i; j--) {
if (s[j] != '\0' && strchr(set, s[j])) {
return j - orig;
}
}
return -1;
}
/* strip the \n from the end of a string */
char*
zt_cstr_chomp(char *str) {
zt_assert(str);
{
size_t i = 0;
i = strlen(str);
if (str[i - 1] == '\n') {
str[i - 1] = '\0';
}
}
return str;
}
/* Strip white space characters from the front and back of the string */
char*
zt_cstr_strip(char *str) {
zt_assert(str);
{
/* strip whitespace from the beginning of the string */
size_t len = 0;
int nl = 0;
len = strspn(str, WHITESPACE);
memmove(str, &str[len], (strlen(str) - len) + 1); /* +1 captures \0 */
/* strip whitespace from the end of the string */
if (strchr(str, '\n') != NULL) {
nl = 1;
}
len = zt_cstr_rspn(str, WHITESPACE "\n");
len = strlen(str) - len;
if (len) {
if (nl) {
str[len++] = '\n';
}
str[len] = '\0';
}
}
return str;
}
size_t
zt_cstr_rspn(const char *s, const char *accept) {
size_t len = strlen(s);
ssize_t i = 0;
zt_assert(s);
zt_assert(accept);
for (i = len - 1; i > 0; i--) { /* -1 to skip \0 */
if (strspn(&s[i], accept) == 0) {
return (len - i) - 1; /* -1 for the first non matching char */
}
}
return len;
}
size_t
zt_cstr_rcspn(const char *s, const char *reject) {
size_t len = strlen(s);
ssize_t i = 0;
zt_assert(s);
zt_assert(reject);
for (i = len - 1; i > 0; i--) { /* -1 to skip \0 */
if (strcspn(&s[i], reject) == 0) {
return i; /* -1 for the first non matching char */
}
}
return len;
}
char*
zt_cstr_basename(char *npath, size_t len, const char *path, const char *suffix) {
ssize_t start;
ssize_t end;
zt_assert(npath);
zt_assert(path);
memset(npath, '\0', len);
if ((start = zt_cstr_rfind(path, 0, -1, PATH_SEPERATOR)) != -1) {
start = start + strlen(PATH_SEPERATOR);
} else {
start = 0;
}
if (suffix) {
end = zt_cstr_rfind(path, start, -1, suffix);
if (end > 0 && path[end] == '.') {
end--;
}
} else {
end = -1;
}
zt_cstr_copy(path, start, end, npath, len);
return npath;
}
char *
zt_cstr_dirname(char *npath, size_t len, const char *path) {
ssize_t end = -1;
ssize_t ps_len = 0;
zt_assert(npath);
zt_assert(path);
memset(npath, '\0', len);
/* if the end of the path is the PATH_SEPERATOR then skip over it */
ps_len = strlen(PATH_SEPERATOR);
if (strcmp(&path[strlen(path) - ps_len], PATH_SEPERATOR) == 0) {
end = end - ps_len;
}
if ((end = zt_cstr_rfind(path, 0, end, PATH_SEPERATOR)) == -1) {
/* there is no path seperator */
zt_cstr_copy(".", 0, -1, npath, len);
return npath;
} else {
end = end - 1;
}
zt_cstr_copy(path, 0, end, npath, len);
return npath;
}
char *
zt_cstr_path_append(const char *path1, const char *path2) {
char * rpath = NULL;
size_t len1;
size_t len2;
size_t sep_len;
ssize_t x;
ssize_t y;
len1 = strlen(path1);
len2 = strlen(path2);
sep_len = strlen(PATH_SEPERATOR);
for (y = len1 - 1; y > 0 && strncmp(&path1[y], PATH_SEPERATOR, sep_len) == 0; y--) {
;
}
for (x = 0; x < (ssize_t)len2 && strncmp(&path2[x], PATH_SEPERATOR, sep_len) == 0; x++) {
;
}
rpath = zt_cstr_catv(path1, 0, y,
PATH_SEPERATOR, 0, -1,
path2, x, -1, NULL);
return rpath;
}
bool
zt_cstr_abspath(const char * path) {
int len = strlen(PATH_SEPERATOR);
if ((strncmp(path, PATH_SEPERATOR, len) == 0) ||
(path[0] == '.' && strncmp(&path[1], PATH_SEPERATOR, len) == 0)) {
return true;
}
return false;
}
struct _str_state {
char * c;
size_t len;
size_t offt;
};
static int _read_str(void * ctx) {
struct _str_state * state = (struct _str_state *)ctx;
int c = 0;
if (state->len == state->offt) {
return EOF;
}
c = *(state->c + state->offt);
state->offt += 1;
return c;
}
int
zt_hexdump_default_printer(UNUSED void * ctx, size_t addr, char * hex, char * txt) {
size_t offt;
size_t base = 55;
char buffer[100+1];
if (hex) {
if (addr < 65535) {
offt = snprintf(buffer, 100, "%.4zX %.12s %.12s %.12s %.12s", addr, hex, hex+(4*3), hex+(8*3), hex+(12*3));
base += 4;
} else if (addr < 4294967295UL) {
offt = snprintf(buffer, 100, "%.8zX %.12s %.12s %.12s %.12s", addr, hex, hex+(4*3), hex+(8*3), hex+(12*3));
base += 8;
} else {
offt = snprintf(buffer, 100, "%.16zX %.12s %.12s %.12s %.12s", addr, hex, hex+(4*3), hex+(8*3), hex+(12*3));
base += 16;
}
snprintf(buffer+offt, 100-offt, BLANK "| %s", INDENT_TO(base, 1, offt), txt);
printf("%s\n", buffer);
} else {
printf("\n");
}
return 0;
}
size_t
zt_hexdump_str(char * data, size_t size, zt_hexdump_output output, void * odata) {
struct _str_state state = { data, size, 0 };
return zt_hexdump(_read_str, &state, output, odata);
}
size_t
zt_hexdump(int _getchar(void *), void * data, zt_hexdump_output output, void * odata) {
size_t bytes = 0;
size_t hpos = 0, cpos = 0;
int c = 0;
uint32_t addr = 0L;
size_t _addr = 0L;
char _txt[16+1];
char _hex[(16*3)+3];
if (output == NULL) {
output = zt_hexdump_default_printer;
}
while ((c = _getchar(data)) != EOF) {
if (addr % 16 == 0) {
_addr = addr;
memset(_txt, 0, sizeof(_txt));
memset(_hex, 0, sizeof(_hex));
hpos = 0;
cpos = 0;
}
*(_hex+hpos++) = HEX_DIGITS[((c >> 4) & 0xF)];
*(_hex+hpos++) = HEX_DIGITS[(c & 0xF)];
*(_hex+hpos++) = ' ';
*(_txt+cpos++) = isprint(c) ? c : '.';
if (addr % 16 == 15) {
if (output(odata, _addr, _hex, _txt) == -1) {
return -1;
}
}
addr++;
bytes++;
}
if ((addr % 16 != 15) && (addr % 16 != 0)) {
if (output(odata, _addr, _hex, _txt) == -1 ) {
return -1;
}
}
output(odata, 0, NULL, NULL);
return bytes;
}
/*!
* converts binary data to a hex string it does not NULL terminate the
* string
*/
size_t
zt_binary_to_hex(void *data, size_t dlen, char *hex, size_t hlen) {
size_t n;
char * dptr = hex;
for (n = 0; (n < dlen) && ((n * 2) < hlen); n++, dptr += 2) {
uint8_t c = ((uint8_t *)data)[n];
if (hex != NULL) {
dptr[0] = HEX_DIGITS[((c >> 4) & 0xF)];
dptr[1] = HEX_DIGITS[(c & 0xF)];
}
}
return n * 2;
}
static int8_t
hex_to_char(char hex) {
uint8_t c = hex;
if (c >= '0' && c <= '9') {
c = c - 48;
} else if (c >= 'A' && c <= 'F') {
c = c - 55; /* 65 - 10 */
} else if (c >= 'a' && c <= 'f') {
c = c - 87; /* 97 - 10 */
} else {
return -1;
}
return c;
}
/*
* convert a hex string to binary
* hex - points to a (possibly) null terminated hex string
* hlen - amount of hex to process
* data - points to the location to store the converted data which
* should be 2 times the size of the hex values in hex
* dlen = holds the length of data
*
* returns - 0 on error or the number of bytes in data on success
* --
* if called with a NULL data will return the number of bytes required
* to convert all data in hex.
*/
size_t
zt_hex_to_binary(char *hex, size_t hlen, void *data, size_t dlen) {
size_t n;
size_t y = 0;
if (data == NULL) {
dlen = -1;
}
for (n = 0, y = 0; n < hlen && *hex != '\0' && y < dlen; n++) {
int8_t c;
int8_t c2;
int8_t cc = 0;
if ((c = hex_to_char(*hex++)) == -1) {
errno = EINVAL;
return 0;
}
if ((c2 = hex_to_char(*hex++)) == -1) {
return 0;
} else {
n++;
}
cc = (c << 4) | (c2 & 0xF);
if (data != NULL) {
((char *)data)[y] = (char)cc;
}
y++;
}
return y;
}
size_t
zt_cstr_copy(const char * from, ssize_t i, ssize_t j, char * to, size_t len) {
size_t flen;
ssize_t min;
CONVERT(from, i, j);
flen = IDXLEN(i, j);
min = MIN(flen, len);
memcpy(to, &from[i], min);
return min;
}
int
zt_cstr_split_free(zt_ptr_array *array) {
return zt_ptr_array_free(array, 1);
}
int
zt_cstr_cut_free(zt_ptr_array *array) {
return zt_ptr_array_free(array, 1);
}
zt_ptr_array *
zt_cstr_split(const char *str, const char *delim) {
char *str_copy;
char *endptr;
char *tok;
zt_ptr_array *split_array;
if (str == NULL || delim == NULL) {
return NULL;
}
split_array = zt_ptr_array_init(NULL, (zt_ptr_array_free_cb)free);
endptr = NULL;
str_copy = strdup(str);
for (tok = strtok_r(str_copy, delim, &endptr); tok != NULL; tok = strtok_r(NULL, delim, &endptr)) {
if (zt_ptr_array_add(split_array, (void *)strdup(tok)) < 0) {
zt_ptr_array_free(split_array, 1);
free(str_copy);
return NULL;
}
}
free(str_copy);
return split_array;
}
zt_ptr_array *
zt_cstr_cut(const char *str, const int delim, int keep_delim) {
char *str_copy;
char *cut_tok;
zt_ptr_array *cuts;
if ((cuts = zt_ptr_array_init(NULL, free)) == NULL) {
return NULL;
}
cut_tok = str_copy = strdup(str);
keep_delim = keep_delim ? 1 : 0;
while ((cut_tok = strchr(cut_tok, delim))) {
cut_tok++;
if (*cut_tok == '\0') {
break;
}
if (zt_ptr_array_add(cuts, (void *)strdup((char *)(cut_tok - keep_delim))) < 0) {
zt_ptr_array_free(cuts, 1);
free(str_copy);
return NULL;
}
}
free(str_copy);
return cuts;
}
zt_ptr_array *
zt_cstr_tok(const char *str, const int delim, int keep_delim UNUSED)
{
char *str_copy;
char *cut_tok;
zt_ptr_array *cuts;
if ((cuts = zt_ptr_array_init(NULL, free)) == NULL) {
return NULL;
}
str_copy = strdup(str);
if (str[strlen(str) - 1] == delim) {
str_copy[ strlen(str) - 1 ] = '\0';
}
while((cut_tok = strrchr(str_copy, delim)) != str_copy)
{
if (cut_tok == NULL) {
break;
}
if (zt_ptr_array_add(cuts, (void *)strdup(str_copy)) < 0) {
zt_ptr_array_free(cuts, 1);
free(str_copy);
return NULL;
}
*cut_tok = '\0';
}
zt_ptr_array_add(cuts, (void *)strdup(str_copy));
free(str_copy);
return cuts;
}
static char * _itoa_integers = "9876543210123456789";
ssize_t zt_cstr_itoa(char *s, int value, size_t offset, size_t bufsiz)
{
size_t loc;
ssize_t result;
result = loc = offset + zt_cstr_int_display_len(value);
if ((s == NULL) || (loc > bufsiz)) {
return -1;
}
if (value < 0) {
s[offset] = '-';
}
s[loc] = 0;
loc--;
do {
s[loc] = *(_itoa_integers + 9 + (value % 10));
value /= 10;
loc--;
} while(value != 0);
return result;
}
size_t zt_cstr_int_display_len(int value)
{
int result;
result = value >= 0 ? 1 : 2;
while ((value >= 1000) || (value <= -1000)) {
result += 3;
value /= 1000;
}
if ((value >= 100) || (value <= -100)) {
return result + 2;
}
if ((value >= 10) || (value <= -10)) {
return result + 1;
}
return result;
}
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