Coverage Report

Created: 2025-10-10 07:05

next uncovered line (L), next uncovered region (R), next uncovered branch (B)
/src/libjpeg-turbo.main/src/cmyk.h
Line
Count
Source
1
/*
2
 * cmyk.h
3
 *
4
 * Copyright (C) 2017-2018, 2022, 2024-2025, D. R. Commander.
5
 * For conditions of distribution and use, see the accompanying README.ijg
6
 * file.
7
 *
8
 * This file contains convenience functions for performing quick & dirty
9
 * CMYK<->RGB conversion.  This algorithm is suitable for testing purposes
10
 * only.  Properly converting between CMYK and RGB requires a color management
11
 * system.
12
 */
13
14
#ifndef CMYK_H
15
#define CMYK_H
16
17
#include "jinclude.h"
18
#define JPEG_INTERNALS
19
#include "jpeglib.h"
20
#include "jsamplecomp.h"
21
22
23
/* Fully reversible */
24
25
INLINE
26
LOCAL(void)
27
rgb_to_cmyk(int maxval, _JSAMPLE r, _JSAMPLE g, _JSAMPLE b,
28
            _JSAMPLE *c, _JSAMPLE *m, _JSAMPLE *y, _JSAMPLE *k)
29
142M
{
30
142M
  double ctmp = 1.0 - ((double)r / (double)maxval);
31
142M
  double mtmp = 1.0 - ((double)g / (double)maxval);
32
142M
  double ytmp = 1.0 - ((double)b / (double)maxval);
33
142M
  double ktmp = MIN(MIN(ctmp, mtmp), ytmp);
34
35
142M
  if (ktmp == 1.0) ctmp = mtmp = ytmp = 0.0;
36
58.8M
  else {
37
58.8M
    ctmp = (ctmp - ktmp) / (1.0 - ktmp);
38
58.8M
    mtmp = (mtmp - ktmp) / (1.0 - ktmp);
39
58.8M
    ytmp = (ytmp - ktmp) / (1.0 - ktmp);
40
58.8M
  }
41
142M
  *c = (_JSAMPLE)((double)maxval - ctmp * (double)maxval + 0.5);
42
142M
  *m = (_JSAMPLE)((double)maxval - mtmp * (double)maxval + 0.5);
43
142M
  *y = (_JSAMPLE)((double)maxval - ytmp * (double)maxval + 0.5);
44
142M
  *k = (_JSAMPLE)((double)maxval - ktmp * (double)maxval + 0.5);
45
142M
}
rdbmp.c:rgb_to_cmyk
Line
Count
Source
29
33.5M
{
30
33.5M
  double ctmp = 1.0 - ((double)r / (double)maxval);
31
33.5M
  double mtmp = 1.0 - ((double)g / (double)maxval);
32
33.5M
  double ytmp = 1.0 - ((double)b / (double)maxval);
33
33.5M
  double ktmp = MIN(MIN(ctmp, mtmp), ytmp);
34
35
33.5M
  if (ktmp == 1.0) ctmp = mtmp = ytmp = 0.0;
36
23.6M
  else {
37
23.6M
    ctmp = (ctmp - ktmp) / (1.0 - ktmp);
38
23.6M
    mtmp = (mtmp - ktmp) / (1.0 - ktmp);
39
23.6M
    ytmp = (ytmp - ktmp) / (1.0 - ktmp);
40
23.6M
  }
41
33.5M
  *c = (_JSAMPLE)((double)maxval - ctmp * (double)maxval + 0.5);
42
33.5M
  *m = (_JSAMPLE)((double)maxval - mtmp * (double)maxval + 0.5);
43
33.5M
  *y = (_JSAMPLE)((double)maxval - ytmp * (double)maxval + 0.5);
44
33.5M
  *k = (_JSAMPLE)((double)maxval - ktmp * (double)maxval + 0.5);
45
33.5M
}
rdppm-8.c:rgb_to_cmyk
Line
Count
Source
29
36.9M
{
30
36.9M
  double ctmp = 1.0 - ((double)r / (double)maxval);
31
36.9M
  double mtmp = 1.0 - ((double)g / (double)maxval);
32
36.9M
  double ytmp = 1.0 - ((double)b / (double)maxval);
33
36.9M
  double ktmp = MIN(MIN(ctmp, mtmp), ytmp);
34
35
36.9M
  if (ktmp == 1.0) ctmp = mtmp = ytmp = 0.0;
36
10.1M
  else {
37
10.1M
    ctmp = (ctmp - ktmp) / (1.0 - ktmp);
38
10.1M
    mtmp = (mtmp - ktmp) / (1.0 - ktmp);
39
10.1M
    ytmp = (ytmp - ktmp) / (1.0 - ktmp);
40
10.1M
  }
41
36.9M
  *c = (_JSAMPLE)((double)maxval - ctmp * (double)maxval + 0.5);
42
36.9M
  *m = (_JSAMPLE)((double)maxval - mtmp * (double)maxval + 0.5);
43
36.9M
  *y = (_JSAMPLE)((double)maxval - ytmp * (double)maxval + 0.5);
44
36.9M
  *k = (_JSAMPLE)((double)maxval - ktmp * (double)maxval + 0.5);
45
36.9M
}
rdppm-12.c:rgb_to_cmyk
Line
Count
Source
29
49.3M
{
30
49.3M
  double ctmp = 1.0 - ((double)r / (double)maxval);
31
49.3M
  double mtmp = 1.0 - ((double)g / (double)maxval);
32
49.3M
  double ytmp = 1.0 - ((double)b / (double)maxval);
33
49.3M
  double ktmp = MIN(MIN(ctmp, mtmp), ytmp);
34
35
49.3M
  if (ktmp == 1.0) ctmp = mtmp = ytmp = 0.0;
36
18.4M
  else {
37
18.4M
    ctmp = (ctmp - ktmp) / (1.0 - ktmp);
38
18.4M
    mtmp = (mtmp - ktmp) / (1.0 - ktmp);
39
18.4M
    ytmp = (ytmp - ktmp) / (1.0 - ktmp);
40
18.4M
  }
41
49.3M
  *c = (_JSAMPLE)((double)maxval - ctmp * (double)maxval + 0.5);
42
49.3M
  *m = (_JSAMPLE)((double)maxval - mtmp * (double)maxval + 0.5);
43
49.3M
  *y = (_JSAMPLE)((double)maxval - ytmp * (double)maxval + 0.5);
44
49.3M
  *k = (_JSAMPLE)((double)maxval - ktmp * (double)maxval + 0.5);
45
49.3M
}
rdppm-16.c:rgb_to_cmyk
Line
Count
Source
29
22.2M
{
30
22.2M
  double ctmp = 1.0 - ((double)r / (double)maxval);
31
22.2M
  double mtmp = 1.0 - ((double)g / (double)maxval);
32
22.2M
  double ytmp = 1.0 - ((double)b / (double)maxval);
33
22.2M
  double ktmp = MIN(MIN(ctmp, mtmp), ytmp);
34
35
22.2M
  if (ktmp == 1.0) ctmp = mtmp = ytmp = 0.0;
36
6.59M
  else {
37
6.59M
    ctmp = (ctmp - ktmp) / (1.0 - ktmp);
38
6.59M
    mtmp = (mtmp - ktmp) / (1.0 - ktmp);
39
6.59M
    ytmp = (ytmp - ktmp) / (1.0 - ktmp);
40
6.59M
  }
41
22.2M
  *c = (_JSAMPLE)((double)maxval - ctmp * (double)maxval + 0.5);
42
22.2M
  *m = (_JSAMPLE)((double)maxval - mtmp * (double)maxval + 0.5);
43
22.2M
  *y = (_JSAMPLE)((double)maxval - ytmp * (double)maxval + 0.5);
44
22.2M
  *k = (_JSAMPLE)((double)maxval - ktmp * (double)maxval + 0.5);
45
22.2M
}
Unexecuted instantiation: wrbmp.c:rgb_to_cmyk
Unexecuted instantiation: wrppm-8.c:rgb_to_cmyk
Unexecuted instantiation: wrppm-12.c:rgb_to_cmyk
Unexecuted instantiation: wrppm-16.c:rgb_to_cmyk
Unexecuted instantiation: rdbmp.c:rgb_to_cmyk
Unexecuted instantiation: rdppm.c:rgb_to_cmyk
46
47
48
/* Fully reversible only for C/M/Y/K values generated with rgb_to_cmyk() */
49
50
INLINE
51
LOCAL(void)
52
cmyk_to_rgb(int maxval, _JSAMPLE c, _JSAMPLE m, _JSAMPLE y, _JSAMPLE k,
53
            _JSAMPLE *r, _JSAMPLE *g, _JSAMPLE *b)
54
0
{
55
0
  *r = (_JSAMPLE)((double)c * (double)k / (double)maxval + 0.5);
56
0
  *g = (_JSAMPLE)((double)m * (double)k / (double)maxval + 0.5);
57
0
  *b = (_JSAMPLE)((double)y * (double)k / (double)maxval + 0.5);
58
0
}
Unexecuted instantiation: rdbmp.c:cmyk_to_rgb
Unexecuted instantiation: rdppm-8.c:cmyk_to_rgb
Unexecuted instantiation: rdppm-12.c:cmyk_to_rgb
Unexecuted instantiation: rdppm-16.c:cmyk_to_rgb
Unexecuted instantiation: wrbmp.c:cmyk_to_rgb
Unexecuted instantiation: wrppm-8.c:cmyk_to_rgb
Unexecuted instantiation: wrppm-12.c:cmyk_to_rgb
Unexecuted instantiation: wrppm-16.c:cmyk_to_rgb
Unexecuted instantiation: rdppm.c:cmyk_to_rgb
59
60
61
#endif /* CMYK_H */