mirror of
https://gitlab.freedesktop.org/wayland/weston
synced 2024-07-21 10:44:25 +00:00
3d5d9476e3
The main idea is to make libweston users use the form #include <libweston/libweston.h> instead of the plain #include <compositor.h> which is prone to name conflicts. This is reflected both in the installed files, and the internal header search paths so that Weston would use the exact same form as an external project using libweston would. The public headers are moved under a new top-level directory include/ to make them clearly stand out as special (public API). Signed-off-by: Pekka Paalanen <pekka.paalanen@collabora.com>
137 lines
3.5 KiB
C
137 lines
3.5 KiB
C
/*
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* Copyright © 2013 Richard Hughes
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*
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* Permission is hereby granted, free of charge, to any person obtaining
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* a copy of this software and associated documentation files (the
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* "Software"), to deal in the Software without restriction, including
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* without limitation the rights to use, copy, modify, merge, publish,
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* distribute, sublicense, and/or sell copies of the Software, and to
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* permit persons to whom the Software is furnished to do so, subject to
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* the following conditions:
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*
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* The above copyright notice and this permission notice (including the
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* next paragraph) shall be included in all copies or substantial
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* portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
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* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
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* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
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* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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* 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 <stdint.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 <libweston/libweston.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 = zalloc(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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