Coverage Report

Created: 2026-08-31 07:19

next uncovered line (L), next uncovered region (R), next uncovered branch (B)
/src/libjpeg-turbo.3.1.x/src/cmyk.h
Line
Count
Source
1
/*
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 * cmyk.h
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 *
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 * Copyright (C) 2017-2018, 2022, 2024-2025, D. R. Commander.
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 * For conditions of distribution and use, see the accompanying README.ijg
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 * file.
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 *
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 * This file contains convenience functions for performing quick & dirty
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 * CMYK<->RGB conversion.  This algorithm is suitable for testing purposes
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 * only.  Properly converting between CMYK and RGB requires a color management
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 * system.
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 */
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#ifndef CMYK_H
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#define CMYK_H
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#include "jinclude.h"
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#define JPEG_INTERNALS
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#include "jpeglib.h"
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#include "jsamplecomp.h"
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/* Fully reversible */
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INLINE
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LOCAL(void)
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rgb_to_cmyk(int maxval, _JSAMPLE r, _JSAMPLE g, _JSAMPLE b,
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            _JSAMPLE *c, _JSAMPLE *m, _JSAMPLE *y, _JSAMPLE *k)
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193M
{
30
193M
  double ctmp = 1.0 - ((double)r / (double)maxval);
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193M
  double mtmp = 1.0 - ((double)g / (double)maxval);
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193M
  double ytmp = 1.0 - ((double)b / (double)maxval);
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193M
  double ktmp = MIN(MIN(ctmp, mtmp), ytmp);
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35
193M
  if (ktmp == 1.0) ctmp = mtmp = ytmp = 0.0;
36
94.4M
  else {
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94.4M
    ctmp = (ctmp - ktmp) / (1.0 - ktmp);
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94.4M
    mtmp = (mtmp - ktmp) / (1.0 - ktmp);
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94.4M
    ytmp = (ytmp - ktmp) / (1.0 - ktmp);
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94.4M
  }
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193M
  *c = (_JSAMPLE)((double)maxval - ctmp * (double)maxval + 0.5);
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193M
  *m = (_JSAMPLE)((double)maxval - mtmp * (double)maxval + 0.5);
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193M
  *y = (_JSAMPLE)((double)maxval - ytmp * (double)maxval + 0.5);
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193M
  *k = (_JSAMPLE)((double)maxval - ktmp * (double)maxval + 0.5);
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193M
}
rdbmp.c:rgb_to_cmyk
Line
Count
Source
29
47.0M
{
30
47.0M
  double ctmp = 1.0 - ((double)r / (double)maxval);
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47.0M
  double mtmp = 1.0 - ((double)g / (double)maxval);
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47.0M
  double ytmp = 1.0 - ((double)b / (double)maxval);
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47.0M
  double ktmp = MIN(MIN(ctmp, mtmp), ytmp);
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35
47.0M
  if (ktmp == 1.0) ctmp = mtmp = ytmp = 0.0;
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37.4M
  else {
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37.4M
    ctmp = (ctmp - ktmp) / (1.0 - ktmp);
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37.4M
    mtmp = (mtmp - ktmp) / (1.0 - ktmp);
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37.4M
    ytmp = (ytmp - ktmp) / (1.0 - ktmp);
40
37.4M
  }
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47.0M
  *c = (_JSAMPLE)((double)maxval - ctmp * (double)maxval + 0.5);
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47.0M
  *m = (_JSAMPLE)((double)maxval - mtmp * (double)maxval + 0.5);
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47.0M
  *y = (_JSAMPLE)((double)maxval - ytmp * (double)maxval + 0.5);
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47.0M
  *k = (_JSAMPLE)((double)maxval - ktmp * (double)maxval + 0.5);
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47.0M
}
rdppm-8.c:rgb_to_cmyk
Line
Count
Source
29
49.7M
{
30
49.7M
  double ctmp = 1.0 - ((double)r / (double)maxval);
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49.7M
  double mtmp = 1.0 - ((double)g / (double)maxval);
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49.7M
  double ytmp = 1.0 - ((double)b / (double)maxval);
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49.7M
  double ktmp = MIN(MIN(ctmp, mtmp), ytmp);
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35
49.7M
  if (ktmp == 1.0) ctmp = mtmp = ytmp = 0.0;
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22.9M
  else {
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22.9M
    ctmp = (ctmp - ktmp) / (1.0 - ktmp);
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22.9M
    mtmp = (mtmp - ktmp) / (1.0 - ktmp);
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22.9M
    ytmp = (ytmp - ktmp) / (1.0 - ktmp);
40
22.9M
  }
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49.7M
  *c = (_JSAMPLE)((double)maxval - ctmp * (double)maxval + 0.5);
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49.7M
  *m = (_JSAMPLE)((double)maxval - mtmp * (double)maxval + 0.5);
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49.7M
  *y = (_JSAMPLE)((double)maxval - ytmp * (double)maxval + 0.5);
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49.7M
  *k = (_JSAMPLE)((double)maxval - ktmp * (double)maxval + 0.5);
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49.7M
}
rdppm-12.c:rgb_to_cmyk
Line
Count
Source
29
71.0M
{
30
71.0M
  double ctmp = 1.0 - ((double)r / (double)maxval);
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71.0M
  double mtmp = 1.0 - ((double)g / (double)maxval);
32
71.0M
  double ytmp = 1.0 - ((double)b / (double)maxval);
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71.0M
  double ktmp = MIN(MIN(ctmp, mtmp), ytmp);
34
35
71.0M
  if (ktmp == 1.0) ctmp = mtmp = ytmp = 0.0;
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27.8M
  else {
37
27.8M
    ctmp = (ctmp - ktmp) / (1.0 - ktmp);
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27.8M
    mtmp = (mtmp - ktmp) / (1.0 - ktmp);
39
27.8M
    ytmp = (ytmp - ktmp) / (1.0 - ktmp);
40
27.8M
  }
41
71.0M
  *c = (_JSAMPLE)((double)maxval - ctmp * (double)maxval + 0.5);
42
71.0M
  *m = (_JSAMPLE)((double)maxval - mtmp * (double)maxval + 0.5);
43
71.0M
  *y = (_JSAMPLE)((double)maxval - ytmp * (double)maxval + 0.5);
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71.0M
  *k = (_JSAMPLE)((double)maxval - ktmp * (double)maxval + 0.5);
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71.0M
}
rdppm-16.c:rgb_to_cmyk
Line
Count
Source
29
25.5M
{
30
25.5M
  double ctmp = 1.0 - ((double)r / (double)maxval);
31
25.5M
  double mtmp = 1.0 - ((double)g / (double)maxval);
32
25.5M
  double ytmp = 1.0 - ((double)b / (double)maxval);
33
25.5M
  double ktmp = MIN(MIN(ctmp, mtmp), ytmp);
34
35
25.5M
  if (ktmp == 1.0) ctmp = mtmp = ytmp = 0.0;
36
6.16M
  else {
37
6.16M
    ctmp = (ctmp - ktmp) / (1.0 - ktmp);
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6.16M
    mtmp = (mtmp - ktmp) / (1.0 - ktmp);
39
6.16M
    ytmp = (ytmp - ktmp) / (1.0 - ktmp);
40
6.16M
  }
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25.5M
  *c = (_JSAMPLE)((double)maxval - ctmp * (double)maxval + 0.5);
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25.5M
  *m = (_JSAMPLE)((double)maxval - mtmp * (double)maxval + 0.5);
43
25.5M
  *y = (_JSAMPLE)((double)maxval - ytmp * (double)maxval + 0.5);
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25.5M
  *k = (_JSAMPLE)((double)maxval - ktmp * (double)maxval + 0.5);
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25.5M
}
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
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/* Fully reversible only for C/M/Y/K values generated with rgb_to_cmyk() */
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INLINE
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LOCAL(void)
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cmyk_to_rgb(int maxval, _JSAMPLE c, _JSAMPLE m, _JSAMPLE y, _JSAMPLE k,
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            _JSAMPLE *r, _JSAMPLE *g, _JSAMPLE *b)
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0
{
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0
  *r = (_JSAMPLE)((double)c * (double)k / (double)maxval + 0.5);
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0
  *g = (_JSAMPLE)((double)m * (double)k / (double)maxval + 0.5);
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0
  *b = (_JSAMPLE)((double)y * (double)k / (double)maxval + 0.5);
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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
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60
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#endif /* CMYK_H */