86a0797819
This uses the luminance levels of the color states to anchor the white of content instead of hard-coding the levels. This also starts using uniforms for parts of the mapping which means we don't have to generate and compile a shader when the luminance levels change. Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/3953>
101 lines
4.0 KiB
C
101 lines
4.0 KiB
C
/*
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* Clutter.
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*
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* An OpenGL based 'interactive canvas' library.
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*
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* Copyright (C) 2022 Intel Corporation.
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library. If not, see <http://www.gnu.org/licenses/>.
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*
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* Author:
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* Naveen Kumar <naveen1.kumar@intel.com>
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*/
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#pragma once
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#if !defined(__CLUTTER_H_INSIDE__) && !defined(CLUTTER_COMPILATION)
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#error "Only <clutter/clutter.h> can be included directly."
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#endif
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#include "clutter/clutter-types.h"
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G_BEGIN_DECLS
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#define CLUTTER_TYPE_COLOR_STATE (clutter_color_state_get_type ())
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CLUTTER_EXPORT
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G_DECLARE_FINAL_TYPE (ClutterColorState, clutter_color_state,
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CLUTTER, COLOR_STATE,
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GObject)
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CLUTTER_EXPORT
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ClutterColorState * clutter_color_state_new (ClutterContext *context,
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ClutterColorspace colorspace,
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ClutterTransferFunction transfer_function);
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CLUTTER_EXPORT
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ClutterColorState * clutter_color_state_new_full (ClutterContext *context,
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ClutterColorspace colorspace,
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ClutterTransferFunction transfer_function,
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float min_lum,
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float max_lum,
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float ref_lum);
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CLUTTER_EXPORT
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char * clutter_color_state_to_string (ClutterColorState *color_state);
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CLUTTER_EXPORT
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unsigned int clutter_color_state_get_id (ClutterColorState *color_state);
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CLUTTER_EXPORT
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ClutterColorspace clutter_color_state_get_colorspace (ClutterColorState *color_state);
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CLUTTER_EXPORT
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ClutterTransferFunction clutter_color_state_get_transfer_function (ClutterColorState *color_state);
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CLUTTER_EXPORT
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void clutter_color_state_get_luminances (ClutterColorState *color_state,
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float *min_lum_out,
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float *max_lum_out,
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float *ref_lum_out);
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CLUTTER_EXPORT
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void clutter_color_state_add_pipeline_transform (ClutterColorState *color_state,
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ClutterColorState *target_color_state,
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CoglPipeline *pipeline);
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CLUTTER_EXPORT
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void clutter_color_state_update_uniforms (ClutterColorState *color_state,
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ClutterColorState *target_color_state,
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CoglPipeline *pipeline);
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CLUTTER_EXPORT
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gboolean clutter_color_state_equals (ClutterColorState *color_state,
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ClutterColorState *other_color_state);
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CLUTTER_EXPORT
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ClutterEncodingRequiredFormat clutter_color_state_required_format (ClutterColorState *color_state);
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CLUTTER_EXPORT
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ClutterColorState * clutter_color_state_get_blending (ClutterColorState *color_state,
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gboolean force);
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CLUTTER_EXPORT
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void clutter_transfer_function_get_default_luminances (ClutterTransferFunction transfer_function,
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float *min_lum_out,
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float *max_lum_out,
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float *ref_lum_out);
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G_END_DECLS
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