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/*
* Copyright © 2013 Richard Hughes
*
* Permission is hereby granted, free of charge, to any person obtaining
* a copy of this software and associated documentation files (the
* "Software"), to deal in the Software without restriction, including
* without limitation the rights to use, copy, modify, merge, publish,
* distribute, sublicense, and/or sell copies of the Software, and to
* permit persons to whom the Software is furnished to do so, subject to
* the following conditions:
*
* The above copyright notice and this permission notice (including the
* next paragraph) shall be included in all copies or substantial
* portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*/
#ifndef _WESTON_CMS_H_
#define _WESTON_CMS_H_
#include "config.h"
#include <libweston/libweston.h>
/* General overview on how to be a CMS plugin:
*
* First, some nomenclature:
*
* CMF: Color management framework, i.e. "Use foo.icc for device $bar"
* CMM: Color management module that converts pixel colors, which is
* usually lcms2 on any modern OS.
* CMS: Color management system that encompasses both a CMF and CMM.
* ICC: International Color Consortium, the people that define the
* binary encoding of a .icc file.
* VCGT: Video Card Gamma Tag. An Apple extension to the ICC specification
* that allows the calibration state to be stored in the ICC profile
* Output: Physical port with a display attached, e.g. LVDS1
*
* As a CMF is probably something you don't want or need on an embedded install
* these functions will not be called if the icc_profile key is set for a
* specific [output] section in weston.ini
*
* Most desktop environments want the CMF to decide what profile to use in
* different situations, so that displays can be profiled and also so that
* the ICC profiles can be changed at runtime depending on the task or ambient
* environment.
*
* The CMF can be selected using the 'modules' key in the [core] section.
*/
struct weston_color_profile {
char *filename;
void *lcms_handle;
};
void
weston_cms_set_color_profile(struct weston_output *o,
struct weston_color_profile *p);
struct weston_color_profile *
weston_cms_create_profile(const char *filename,
void *lcms_profile);
struct weston_color_profile *
weston_cms_load_profile(const char *filename);
void
weston_cms_destroy_profile(struct weston_color_profile *p);
#endif
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