2 * Copyright © 2013 Richard Hughes
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26 #ifndef _WESTON_CMS_H_
27 #define _WESTON_CMS_H_
31 #include "compositor.h"
33 /* General overview on how to be a CMS plugin:
35 * First, some nomenclature:
37 * CMF: Color management framework, i.e. "Use foo.icc for device $bar"
38 * CMM: Color management module that converts pixel colors, which is
39 * usually lcms2 on any modern OS.
40 * CMS: Color management system that encompasses both a CMF and CMM.
41 * ICC: International Color Consortium, the people that define the
42 * binary encoding of a .icc file.
43 * VCGT: Video Card Gamma Tag. An Apple extension to the ICC specification
44 * that allows the calibration state to be stored in the ICC profile
45 * Output: Physical port with a display attached, e.g. LVDS1
47 * As a CMF is probably something you don't want or need on an embedded install
48 * these functions will not be called if the icc_profile key is set for a
49 * specific [output] section in weston.ini
51 * Most desktop environments want the CMF to decide what profile to use in
52 * different situations, so that displays can be profiled and also so that
53 * the ICC profiles can be changed at runtime depending on the task or ambient
56 * The CMF can be selected using the 'modules' key in the [core] section.
59 struct weston_color_profile {
65 weston_cms_set_color_profile(struct weston_output *o,
66 struct weston_color_profile *p);
67 struct weston_color_profile *
68 weston_cms_create_profile(const char *filename,
70 struct weston_color_profile *
71 weston_cms_load_profile(const char *filename);
73 weston_cms_destroy_profile(struct weston_color_profile *p);