You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
132 lines
3.5 KiB
132 lines
3.5 KiB
/*
|
|
* Copyright © 2013 Richard Hughes
|
|
*
|
|
* Permission to use, copy, modify, distribute, and sell this software and
|
|
* its documentation for any purpose is hereby granted without fee, provided
|
|
* that the above copyright notice appear in all copies and that both that
|
|
* copyright notice and this permission notice appear in supporting
|
|
* documentation, and that the name of the copyright holders not be used in
|
|
* advertising or publicity pertaining to distribution of the software
|
|
* without specific, written prior permission. The copyright holders make
|
|
* no representations about the suitability of this software for any
|
|
* purpose. It is provided "as is" without express or implied warranty.
|
|
*
|
|
* THE COPYRIGHT HOLDERS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS
|
|
* SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND
|
|
* FITNESS, IN NO EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY
|
|
* SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER
|
|
* RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF
|
|
* CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
|
|
* CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
|
|
*/
|
|
|
|
#include "config.h"
|
|
|
|
#include <stdlib.h>
|
|
#include <string.h>
|
|
#include <stdio.h>
|
|
|
|
#ifdef HAVE_LCMS
|
|
#include <lcms2.h>
|
|
#endif
|
|
|
|
#include "compositor.h"
|
|
#include "cms-helper.h"
|
|
|
|
#ifdef HAVE_LCMS
|
|
static void
|
|
weston_cms_gamma_clear(struct weston_output *o)
|
|
{
|
|
int i;
|
|
uint16_t *red;
|
|
|
|
if (!o->set_gamma)
|
|
return;
|
|
|
|
red = calloc(o->gamma_size, sizeof(uint16_t));
|
|
for (i = 0; i < o->gamma_size; i++)
|
|
red[i] = (uint32_t) 0xffff * (uint32_t) i / (uint32_t) (o->gamma_size - 1);
|
|
o->set_gamma(o, o->gamma_size, red, red, red);
|
|
free(red);
|
|
}
|
|
#endif
|
|
|
|
void
|
|
weston_cms_set_color_profile(struct weston_output *o,
|
|
struct weston_color_profile *p)
|
|
{
|
|
#ifdef HAVE_LCMS
|
|
cmsFloat32Number in;
|
|
const cmsToneCurve **vcgt;
|
|
int i;
|
|
int size;
|
|
uint16_t *red = NULL;
|
|
uint16_t *green = NULL;
|
|
uint16_t *blue = NULL;
|
|
|
|
if (!o->set_gamma)
|
|
return;
|
|
if (!p) {
|
|
weston_cms_gamma_clear(o);
|
|
return;
|
|
}
|
|
|
|
weston_log("Using ICC profile %s\n", p->filename);
|
|
vcgt = cmsReadTag (p->lcms_handle, cmsSigVcgtTag);
|
|
if (vcgt == NULL || vcgt[0] == NULL) {
|
|
weston_cms_gamma_clear(o);
|
|
return;
|
|
}
|
|
|
|
size = o->gamma_size;
|
|
red = calloc(size, sizeof(uint16_t));
|
|
green = calloc(size, sizeof(uint16_t));
|
|
blue = calloc(size, sizeof(uint16_t));
|
|
for (i = 0; i < size; i++) {
|
|
in = (cmsFloat32Number) i / (cmsFloat32Number) (size - 1);
|
|
red[i] = cmsEvalToneCurveFloat(vcgt[0], in) * (double) 0xffff;
|
|
green[i] = cmsEvalToneCurveFloat(vcgt[1], in) * (double) 0xffff;
|
|
blue[i] = cmsEvalToneCurveFloat(vcgt[2], in) * (double) 0xffff;
|
|
}
|
|
o->set_gamma(o, size, red, green, blue);
|
|
free(red);
|
|
free(green);
|
|
free(blue);
|
|
#endif
|
|
}
|
|
|
|
void
|
|
weston_cms_destroy_profile(struct weston_color_profile *p)
|
|
{
|
|
if (!p)
|
|
return;
|
|
#ifdef HAVE_LCMS
|
|
cmsCloseProfile(p->lcms_handle);
|
|
#endif
|
|
free(p->filename);
|
|
free(p);
|
|
}
|
|
|
|
struct weston_color_profile *
|
|
weston_cms_create_profile(const char *filename,
|
|
void *lcms_profile)
|
|
{
|
|
struct weston_color_profile *p;
|
|
p = zalloc(sizeof(struct weston_color_profile));
|
|
p->filename = strdup(filename);
|
|
p->lcms_handle = lcms_profile;
|
|
return p;
|
|
}
|
|
|
|
struct weston_color_profile *
|
|
weston_cms_load_profile(const char *filename)
|
|
{
|
|
struct weston_color_profile *p = NULL;
|
|
#ifdef HAVE_LCMS
|
|
cmsHPROFILE lcms_profile;
|
|
lcms_profile = cmsOpenProfileFromFile(filename, "r");
|
|
if (lcms_profile)
|
|
p = weston_cms_create_profile(filename, lcms_profile);
|
|
#endif
|
|
return p;
|
|
}
|
|
|