138 lines
4.2 KiB
C
138 lines
4.2 KiB
C
/*
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* Copyright 2023 Collabora, Ltd.
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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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#ifndef WESTON_COLOR_CHARACTERISTICS_H
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#define WESTON_COLOR_CHARACTERISTICS_H
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#include <stdint.h>
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#include <stdbool.h>
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#include <libweston/libweston.h>
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struct weston_compositor;
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/**
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* Color features.
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*/
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enum weston_color_feature {
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WESTON_COLOR_FEATURE_ICC = 0,
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WESTON_COLOR_FEATURE_PARAMETRIC,
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WESTON_COLOR_FEATURE_SET_PRIMARIES,
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WESTON_COLOR_FEATURE_SET_TF_POWER,
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WESTON_COLOR_FEATURE_SET_MASTERING_DISPLAY_PRIMARIES,
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WESTON_COLOR_FEATURE_EXTENDED_TARGET_VOLUME,
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};
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/**
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* Rendering intents.
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*/
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enum weston_render_intent {
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WESTON_RENDER_INTENT_PERCEPTUAL = 0,
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WESTON_RENDER_INTENT_RELATIVE,
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WESTON_RENDER_INTENT_SATURATION,
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WESTON_RENDER_INTENT_ABSOLUTE,
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WESTON_RENDER_INTENT_RELATIVE_BPC,
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};
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struct weston_color_feature_info {
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/** Our internal representation for the features. */
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enum weston_color_feature feature;
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/** String describing the feature. */
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const char *desc;
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/** CM&HDR protocol extension value representing the feature. */
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uint32_t protocol_feature;
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};
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struct weston_render_intent_info {
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/** Our internal representation of the intents. */
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enum weston_render_intent intent;
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/* String describing the intent. */
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const char *desc;
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/** CM&HDR protocol extension value representing the intent. */
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uint32_t protocol_intent;
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/** LittleCMS representation. */
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uint32_t lcms_intent;
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/** Black-point compensation? */
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bool bps;
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};
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struct weston_color_primaries_info {
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/** Our internal representation for the primaries. */
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enum weston_color_primaries primaries;
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/** Raw values for the primaries. */
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struct weston_color_gamut color_gamut;
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/** String describing the primaries. */
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const char *desc;
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/** CM&HDR protocol extension value representing the primaries. */
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uint32_t protocol_primaries;
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};
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struct weston_color_tf_info {
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/** Our internal representation for the tf. */
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enum weston_transfer_function tf;
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/** String describing the tf. */
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const char *desc;
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/** CM&HDR protocol extension value representing the tf. */
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uint32_t protocol_tf;
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/* The protocol also has support for parameterized functions, i.e.
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* certain known functions that clients can define passing arbitrary
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* parameters. */
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bool has_parameters;
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};
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const struct weston_color_feature_info *
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weston_color_feature_info_from(struct weston_compositor *compositor,
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enum weston_color_feature feature);
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const struct weston_render_intent_info *
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weston_render_intent_info_from(struct weston_compositor *compositor,
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enum weston_render_intent intent);
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const struct weston_render_intent_info *
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weston_render_intent_info_from_protocol(struct weston_compositor *compositor,
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uint32_t protocol_intent);
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const struct weston_color_primaries_info *
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weston_color_primaries_info_from(struct weston_compositor *compositor,
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enum weston_color_primaries primaries);
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const struct weston_color_tf_info *
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weston_color_tf_info_from(struct weston_compositor *compositor,
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enum weston_transfer_function tf);
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#endif /* WESTON_COLOR_CHARACTERISTICS_H */
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