chromium/third_party/libjpeg_turbo/cmyk.h

/*
 * cmyk.h
 *
 * Copyright (C) 2017-2018, D. R. Commander.
 * For conditions of distribution and use, see the accompanying README.ijg
 * file.
 *
 * This file contains convenience functions for performing quick & dirty
 * CMYK<->RGB conversion.  This algorithm is suitable for testing purposes
 * only.  Properly converting between CMYK and RGB requires a color management
 * system.
 */

#ifndef CMYK_H
#define CMYK_H

#include <jinclude.h>
#define JPEG_INTERNALS
#include <jpeglib.h>


/* Fully reversible */

INLINE
LOCAL(void)
rgb_to_cmyk(JSAMPLE r, JSAMPLE g, JSAMPLE b, JSAMPLE *c, JSAMPLE *m,
            JSAMPLE *y, JSAMPLE *k)
{ … }


/* Fully reversible only for C/M/Y/K values generated with rgb_to_cmyk() */

INLINE
LOCAL(void)
cmyk_to_rgb(JSAMPLE c, JSAMPLE m, JSAMPLE y, JSAMPLE k, JSAMPLE *r, JSAMPLE *g,
            JSAMPLE *b)
{ … }


#endif /* CMYK_H */