71 lines
2.9 KiB
C
71 lines
2.9 KiB
C
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/*
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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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#ifndef _WESTON_CMS_H_
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#define _WESTON_CMS_H_
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#include "compositor.h"
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/* General overview on how to be a CMS plugin:
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*
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* First, some nomenclature:
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*
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* CMF: Color management framework, i.e. "Use foo.icc for device $bar"
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* CMM: Color management module that converts pixel colors, which is
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* usually lcms2 on any modern OS.
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* CMS: Color management system that encompasses both a CMF and CMM.
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* ICC: International Color Consortium, the people that define the
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* binary encoding of a .icc file.
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* VCGT: Video Card Gamma Tag. An Apple extension to the ICC specification
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* that allows the calibration state to be stored in the ICC profile
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* Output: Physical port with a display attached, e.g. LVDS1
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*
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* As a CMF is probably something you don't want or need on an embeded install
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* these functions will not be called if the icc_profile key is set for a
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* specific [output] section in weston.ini
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*
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* Most desktop environments want the CMF to decide what profile to use in
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* different situations, so that displays can be profiled and also so that
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* the ICC profiles can be changed at runtime depending on the task or ambient
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* environment.
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*
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* The CMF can be selected using the 'modules' key in the [core] section.
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*/
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struct weston_color_profile {
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char *filename;
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void *lcms_handle;
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};
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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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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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struct weston_color_profile *
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weston_cms_load_profile(const char *filename);
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void
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weston_cms_destroy_profile(struct weston_color_profile *p);
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#endif
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