// File: /workspace/github_c_makefile_star2_O3/zhou-lab[P]tbmate/htslib/bgzf.c
// Function: bgzf_compress
int bgzf_compress(void *_dst, size_t *dlen, const void *src, size_t slen, int level)
{
    uint32_t crc;
    z_stream zs;
    uint8_t *dst = (uint8_t*)_dst;

    // compress the body
    zs.zalloc = NULL; zs.zfree = NULL;
    zs.msg = NULL;
    zs.next_in  = (Bytef*)src;
    zs.avail_in = slen;
    zs.next_out = dst + BLOCK_HEADER_LENGTH;
    zs.avail_out = *dlen - BLOCK_HEADER_LENGTH - BLOCK_FOOTER_LENGTH;
    int ret = deflateInit2(&zs, level, Z_DEFLATED, -15, 8, Z_DEFAULT_STRATEGY); // -15 to disable zlib header/footer
    if (ret!=Z_OK) {
        if (hts_verbose >= 1) {
            fprintf(stderr, "[E::%s] deflateInit2 failed: %s\n",
                    __func__, bgzf_zerr(ret, &zs));
        }
        return -1;
    }
    if ((ret = deflate(&zs, Z_FINISH)) != Z_STREAM_END) {
        if (hts_verbose >= 1) {
            fprintf(stderr, "[E::%s] deflate failed: %s\n",
                    __func__, bgzf_zerr(ret, ret == Z_DATA_ERROR ? &zs : NULL));
        }
        return -1;
    }
    if ((ret = deflateEnd(&zs)) != Z_OK) {
        if (hts_verbose >= 1) {
            fprintf(stderr, "[E::%s] deflateEnd failed: %s\n",
                    __func__, bgzf_zerr(ret, NULL));
        }
        return -1;
    }
    *dlen = zs.total_out + BLOCK_HEADER_LENGTH + BLOCK_FOOTER_LENGTH;
    // write the header
    memcpy(dst, g_magic, BLOCK_HEADER_LENGTH); // the last two bytes are a place holder for the length of the block
    packInt16(&dst[16], *dlen - 1); // write the compressed length; -1 to fit 2 bytes
    // write the footer
    crc = crc32(crc32(0L, NULL, 0L), (Bytef*)src, slen);
    packInt32((uint8_t*)&dst[*dlen - 8], crc);
    packInt32((uint8_t*)&dst[*dlen - 4], slen);
    return 0;
}

// Assembly:
pushq %r15
pushq %r14
pushq %r13
pushq %r12
pushq %rbx
subq $0x70, %rsp
movq %rcx, %rbx
movq %rdx, %r12
movq %rsi, %r15
movq %rdi, %r14
movq %rsp, %rdi
movq $0x0, 0x30(%rdi)
xorps %xmm0, %xmm0
movups %xmm0, 0x40(%rdi)
movq %rdx, (%rdi)
movl %ebx, 0x8(%rdi)
leaq 0x12(%r14), %rax
movq %rax, 0x18(%rdi)
movl (%rsi), %eax
addl $-0x1a, %eax
movl %eax, 0x20(%rdi)
leaq 0x27333(%rip), %rax     # 0x4e771
movl %r8d, %esi
movl $0x8, %edx
movl $0xfffffff1, %ecx       # imm = 0xFFFFFFF1
movl $0x8, %r8d
xorl %r9d, %r9d
pushq $0x70
pushq %rax
callq 0x3680
addq $0x10, %rsp
testl %eax, %eax
je 0x27489
leaq 0x3801d(%rip), %rcx     # 0x5f488
movl $0xffffffff, %r13d      # imm = 0xFFFFFFFF
cmpl $0x0, (%rcx)
jle 0x27533
movq %rsp, %rsi
movl %eax, %edi
callq 0x4629
jmp 0x27533
movq %rsp, %rdi
movl $0x4, %esi
callq 0x31f0
cmpl $0x1, %eax
jne 0x274c2
movq %rsp, %rdi
callq 0x33d0
testl %eax, %eax
je 0x274e0
leaq 0x37fda(%rip), %rcx     # 0x5f488
movl $0xffffffff, %r13d      # imm = 0xFFFFFFFF
cmpl $0x0, (%rcx)
jle 0x27533
movl %eax, %edi
callq 0x468c
jmp 0x27533
leaq 0x37fbf(%rip), %rcx     # 0x5f488
movl $0xffffffff, %r13d      # imm = 0xFFFFFFFF
cmpl $0x0, (%rcx)
jle 0x27533
movq %rsp, %rsi
movl %eax, %edi
callq 0x4656
jmp 0x27533
movq 0x28(%rsp), %rax
addq $0x1a, %rax
movq %rax, (%r15)
movaps 0x288bd(%rip), %xmm0    # 0x4fdb0
movups %xmm0, (%r14)
movw $0x0, 0x10(%r14)
movl (%r15), %eax
decl %eax
movw %ax, 0x10(%r14)
xorl %r13d, %r13d
xorl %edi, %edi
xorl %esi, %esi
xorl %edx, %edx
callq 0x3390
movq %rax, %rdi
movq %r12, %rsi
movl %ebx, %edx
callq 0x3390
movq (%r15), %rcx
movl %eax, -0x8(%r14,%rcx)
movq (%r15), %rax
movl %ebx, -0x4(%r14,%rax)
movl %r13d, %eax
addq $0x70, %rsp
popq %rbx
popq %r12
popq %r13
popq %r14
popq %r15
retq