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c228e23b05
AC_USE_SYSTEM_EXTENSIONS enables _XOPEN_SOURCE, _GNU_SOURCE and similar macros to expose the largest extent of functionality supported by the underlying system. This is required since these macros are often limiting rather than merely additive, e.g. _XOPEN_SOURCE will actually on some systems hide declarations which are not part of the X/Open spec. Since this goes into config.h rather than the command line, ensure all source is consistently including config.h before anything else, including system libraries. This doesn't need to be guarded by a HAVE_CONFIG_H ifdef, which was only ever a hangover from the X.Org modular transition. Signed-off-by: Daniel Stone <daniel@fooishbar.org> [pq: rebased and converted more files]
132 lines
3.5 KiB
C
132 lines
3.5 KiB
C
/*
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* Copyright © 2013 Richard Hughes
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*
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* Permission to use, copy, modify, distribute, and sell this software and
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* its documentation for any purpose is hereby granted without fee, provided
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* that the above copyright notice appear in all copies and that both that
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* copyright notice and this permission notice appear in supporting
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* documentation, and that the name of the copyright holders not be used in
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* advertising or publicity pertaining to distribution of the software
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* without specific, written prior permission. The copyright holders make
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* no representations about the suitability of this software for any
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* purpose. It is provided "as is" without express or implied warranty.
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*
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* THE COPYRIGHT HOLDERS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS
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* SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND
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* FITNESS, IN NO EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY
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* SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER
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* RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF
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* CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
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* CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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*/
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#include "config.h"
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#include <stdlib.h>
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#include <string.h>
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#include <stdio.h>
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#ifdef HAVE_LCMS
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#include <lcms2.h>
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#endif
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#include "compositor.h"
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#include "cms-helper.h"
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#ifdef HAVE_LCMS
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static void
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weston_cms_gamma_clear(struct weston_output *o)
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{
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int i;
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uint16_t *red;
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if (!o->set_gamma)
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return;
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red = calloc(o->gamma_size, sizeof(uint16_t));
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for (i = 0; i < o->gamma_size; i++)
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red[i] = (uint32_t) 0xffff * (uint32_t) i / (uint32_t) (o->gamma_size - 1);
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o->set_gamma(o, o->gamma_size, red, red, red);
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free(red);
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}
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#endif
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void
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weston_cms_set_color_profile(struct weston_output *o,
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struct weston_color_profile *p)
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{
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#ifdef HAVE_LCMS
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cmsFloat32Number in;
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const cmsToneCurve **vcgt;
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int i;
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int size;
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uint16_t *red = NULL;
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uint16_t *green = NULL;
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uint16_t *blue = NULL;
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if (!o->set_gamma)
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return;
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if (!p) {
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weston_cms_gamma_clear(o);
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return;
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}
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weston_log("Using ICC profile %s\n", p->filename);
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vcgt = cmsReadTag (p->lcms_handle, cmsSigVcgtTag);
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if (vcgt == NULL || vcgt[0] == NULL) {
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weston_cms_gamma_clear(o);
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return;
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}
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size = o->gamma_size;
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red = calloc(size, sizeof(uint16_t));
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green = calloc(size, sizeof(uint16_t));
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blue = calloc(size, sizeof(uint16_t));
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for (i = 0; i < size; i++) {
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in = (cmsFloat32Number) i / (cmsFloat32Number) (size - 1);
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red[i] = cmsEvalToneCurveFloat(vcgt[0], in) * (double) 0xffff;
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green[i] = cmsEvalToneCurveFloat(vcgt[1], in) * (double) 0xffff;
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blue[i] = cmsEvalToneCurveFloat(vcgt[2], in) * (double) 0xffff;
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}
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o->set_gamma(o, size, red, green, blue);
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free(red);
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free(green);
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free(blue);
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#endif
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}
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void
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weston_cms_destroy_profile(struct weston_color_profile *p)
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{
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if (!p)
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return;
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#ifdef HAVE_LCMS
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cmsCloseProfile(p->lcms_handle);
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#endif
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free(p->filename);
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free(p);
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}
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struct weston_color_profile *
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weston_cms_create_profile(const char *filename,
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void *lcms_profile)
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{
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struct weston_color_profile *p;
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p = calloc(1, sizeof(struct weston_color_profile));
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p->filename = strdup(filename);
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p->lcms_handle = lcms_profile;
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return p;
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}
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struct weston_color_profile *
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weston_cms_load_profile(const char *filename)
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{
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struct weston_color_profile *p = NULL;
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#ifdef HAVE_LCMS
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cmsHPROFILE lcms_profile;
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lcms_profile = cmsOpenProfileFromFile(filename, "r");
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if (lcms_profile)
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p = weston_cms_create_profile(filename, lcms_profile);
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#endif
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return p;
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}
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