// File: /workspace/github_c_makefile_star2_O2/zhou-lab[P]tbmate/htslib/bgzf.c
// Function: bgzf_write_init
static BGZF *bgzf_write_init(const char *mode)
{
    BGZF *fp;
    fp = (BGZF*)calloc(1, sizeof(BGZF));
    if (fp == NULL) goto mem_fail;
    fp->is_write = 1;
    int compress_level = mode2level(mode);
    if ( compress_level==-2 )
    {
        fp->is_compressed = 0;
        return fp;
    }
    fp->is_compressed = 1;

    fp->uncompressed_block = malloc(BGZF_MAX_BLOCK_SIZE);
    if (fp->uncompressed_block == NULL) goto mem_fail;
    fp->compressed_block = malloc(BGZF_MAX_BLOCK_SIZE);
    if (fp->compressed_block == NULL) goto mem_fail;

    fp->compress_level = compress_level < 0? Z_DEFAULT_COMPRESSION : compress_level; // Z_DEFAULT_COMPRESSION==-1
    if (fp->compress_level > 9) fp->compress_level = Z_DEFAULT_COMPRESSION;
    if ( strchr(mode,'g') )
    {
        // gzip output
        fp->is_gzip = 1;
        fp->gz_stream = (z_stream*)calloc(1,sizeof(z_stream));
        if (fp->gz_stream == NULL) goto mem_fail;
        fp->gz_stream->zalloc = NULL;
        fp->gz_stream->zfree  = NULL;
        fp->gz_stream->msg    = NULL;

        int ret = deflateInit2(fp->gz_stream, fp->compress_level, Z_DEFLATED, 15|16, 8, Z_DEFAULT_STRATEGY);
        if (ret!=Z_OK) {
            if (hts_verbose >= 1) {
                fprintf(stderr, "[E::%s] deflateInit2 failed: %s\n",
                        __func__, bgzf_zerr(ret, fp->gz_stream));
            }
            goto fail;
        }
    }
    return fp;

 mem_fail:
    if (hts_verbose >= 1) {
        fprintf(stderr, "[E::%s] %s\n", __func__, strerror(errno));
    }
 fail:
    if (fp != NULL) {
        free(fp->uncompressed_block);
        free(fp->compressed_block);
        free(fp->gz_stream);
        free(fp);
    }
    return NULL;
}

// Assembly:
pushq %rbp
pushq %r15
pushq %r14
pushq %r12
pushq %rbx
movq %rdi, %r15
pushq $0x1
popq %rdi
pushq $0x60
popq %rsi
callq 0x36b0
movq %rax, %rbx
testq %rax, %rax
je 0x200ec
movq %r15, %rax
movzbl (%rax), %r14d
testl %r14d, %r14d
je 0x1ffc4
leal -0x30(%r14), %ecx
incq %rax
cmpb $0x9, %cl
ja 0x1ffaf
xorl %r12d, %r12d
cmpl $0x1, %r14d
sbbl %r12d, %r12d
pushq $0x75
popq %rsi
movq %r15, %rdi
callq 0x3590
testq %rax, %rax
jne 0x20126
addl $-0x30, %r14d
orl %r14d, %r12d
cmpl $-0x2, %r12d
je 0x20126
movl $0x20010000, (%rbx)     # imm = 0x20010000
movl $0x10000, %edi          # imm = 0x10000
callq 0x3240
movq %rax, 0x20(%rbx)
testq %rax, %rax
je 0x200ec
movq %rax, %r14
movl $0x10000, %edi          # imm = 0x10000
callq 0x3240
movq %rax, 0x28(%rbx)
testq %rax, %rax
je 0x200ef
testl %r12d, %r12d
pushq $-0x1
popq %rbp
cmovnsl %r12d, %ebp
movl %ebp, %r12d
shll $0x14, %r12d
andl $0x1ff00000, %r12d      # imm = 0x1FF00000
leal 0x20010000(%r12), %eax
movl %eax, (%rbx)
pushq $0x67
popq %rsi
movq %r15, %rdi
callq 0x3590
testq %rax, %rax
je 0x2012c
orl $0xa0010000, %r12d      # imm = 0xA0010000
movl %r12d, (%rbx)
pushq $0x1
popq %rdi
pushq $0x70
popq %rsi
callq 0x36b0
movq %rax, 0x58(%rbx)
testq %rax, %rax
je 0x200ef
movq %rax, %r15
shll $0x17, %ebp
sarl $0x17, %ebp
leaq 0x206d1(%rip), %rax     # 0x4075f
pushq $0x1f
popq %rcx
pushq $0x8
popq %rdx
movq %r15, %rdi
movl %ebp, %esi
movl %edx, %r8d
xorl %r9d, %r9d
pushq $0x70
pushq %rax
callq 0x3690
addq $0x10, %rsp
testl %eax, %eax
je 0x2012c
leaq 0x333da(%rip), %rcx     # 0x53490
cmpl $0x0, (%rcx)
jle 0x20100
movq 0x32f26(%rip), %rcx     # 0x52fe8
movq (%rcx), %r12
movl %eax, %edi
movq %r15, %rsi
callq 0x20481
leaq 0x21bfe(%rip), %rsi     # 0x41cd4
leaq 0x21f3c(%rip), %rdx     # 0x42019
movq %r12, %rdi
movq %rax, %rcx
xorl %eax, %eax
callq 0x37f0
jmp 0x20100
xorl %r14d, %r14d
leaq 0x3339a(%rip), %rax     # 0x53490
cmpl $0x0, (%rax)
jg 0x20138
testq %rbx, %rbx
je 0x20122
movq %r14, %rdi
callq 0x3370
movq 0x28(%rbx), %rdi
callq 0x3370
movq 0x58(%rbx), %rdi
callq 0x3370
movq %rbx, %rdi
callq 0x3370
xorl %ebx, %ebx
jmp 0x2012c
movl $0x10000, (%rbx)        # imm = 0x10000
movq %rbx, %rax
popq %rbx
popq %r12
popq %r14
popq %r15
popq %rbp
retq
movq 0x32ea9(%rip), %rax     # 0x52fe8
movq (%rax), %r15
callq 0x35e0
movl (%rax), %edi
callq 0x34e0
leaq 0x21ed4(%rip), %rsi     # 0x42029
leaq 0x21ebd(%rip), %rdx     # 0x42019
movq %r15, %rdi
movq %rax, %rcx
xorl %eax, %eax
callq 0x37f0
jmp 0x200fb