70bacb9402
CoglError was added at a certain point to remove the hard dependency on GLib, but since this can't be avoided inside mutter, let's remove this whole abstraction. https://gitlab.gnome.org/GNOME/mutter/merge_requests/631
144 lines
4.1 KiB
C
144 lines
4.1 KiB
C
/*
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* Cogl
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*
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* A Low Level GPU Graphics and Utilities API
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*
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* Copyright (C) 2009 Intel Corporation.
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*
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* Permission is hereby granted, free of charge, to any person
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* obtaining a copy of this software and associated documentation
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* files (the "Software"), to deal in the Software without
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* restriction, including without limitation the rights to use, copy,
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* modify, merge, publish, distribute, sublicense, and/or sell copies
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* of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be
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* included in all copies or substantial 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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*
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*
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* Authors:
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* Robert Bragg <robert@linux.intel.com>
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*/
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#ifndef COGL_BLEND_STRING_H
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#define COGL_BLEND_STRING_H
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#include <stdlib.h>
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#include <glib.h>
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typedef enum _CoglBlendStringContext
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{
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COGL_BLEND_STRING_CONTEXT_BLENDING,
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COGL_BLEND_STRING_CONTEXT_TEXTURE_COMBINE
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} CoglBlendStringContext;
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/* NB: debug stringify code will get upset if these
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* are re-ordered */
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typedef enum _CoglBlendStringChannelMask
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{
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COGL_BLEND_STRING_CHANNEL_MASK_RGB,
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COGL_BLEND_STRING_CHANNEL_MASK_ALPHA,
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COGL_BLEND_STRING_CHANNEL_MASK_RGBA
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} CoglBlendStringChannelMask;
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typedef enum _CoglBlendStringColorSourceType
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{
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/* blending */
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COGL_BLEND_STRING_COLOR_SOURCE_SRC_COLOR,
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COGL_BLEND_STRING_COLOR_SOURCE_DST_COLOR,
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/* shared */
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COGL_BLEND_STRING_COLOR_SOURCE_CONSTANT,
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/* texture combining */
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COGL_BLEND_STRING_COLOR_SOURCE_TEXTURE,
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COGL_BLEND_STRING_COLOR_SOURCE_TEXTURE_N,
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COGL_BLEND_STRING_COLOR_SOURCE_PRIMARY,
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COGL_BLEND_STRING_COLOR_SOURCE_PREVIOUS
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} CoglBlendStringColorSourceType;
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typedef struct _CoglBlendStringColorSourceInfo
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{
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CoglBlendStringColorSourceType type;
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const char *name;
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size_t name_len;
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} CoglBlendStringColorSourceInfo;
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typedef struct _CoglBlendStringColorSource
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{
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gboolean is_zero;
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const CoglBlendStringColorSourceInfo *info;
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int texture; /* for the TEXTURE_N color source */
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gboolean one_minus;
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CoglBlendStringChannelMask mask;
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} CoglBlendStringColorSource;
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typedef struct _CoglBlendStringFactor
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{
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gboolean is_one;
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gboolean is_src_alpha_saturate;
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gboolean is_color;
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CoglBlendStringColorSource source;
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} CoglBlendStringFactor;
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typedef struct _CoglBlendStringArgument
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{
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CoglBlendStringColorSource source;
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CoglBlendStringFactor factor;
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} CoglBlendStringArgument;
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typedef enum _CoglBlendStringFunctionType
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{
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/* shared */
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COGL_BLEND_STRING_FUNCTION_ADD,
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/* texture combine only */
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COGL_BLEND_STRING_FUNCTION_REPLACE,
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COGL_BLEND_STRING_FUNCTION_MODULATE,
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COGL_BLEND_STRING_FUNCTION_ADD_SIGNED,
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COGL_BLEND_STRING_FUNCTION_INTERPOLATE,
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COGL_BLEND_STRING_FUNCTION_SUBTRACT,
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COGL_BLEND_STRING_FUNCTION_DOT3_RGB,
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COGL_BLEND_STRING_FUNCTION_DOT3_RGBA
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} CoglBlendStringFunctionType;
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typedef struct _CoglBlendStringFunctionInfo
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{
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enum _CoglBlendStringFunctionType type;
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const char *name;
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size_t name_len;
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int argc;
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} CoglBlendStringFunctionInfo;
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typedef struct _CoglBlendStringStatement
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{
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CoglBlendStringChannelMask mask;
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const CoglBlendStringFunctionInfo *function;
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CoglBlendStringArgument args[3];
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} CoglBlendStringStatement;
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gboolean
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_cogl_blend_string_compile (const char *string,
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CoglBlendStringContext context,
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CoglBlendStringStatement *statements,
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GError **error);
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void
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_cogl_blend_string_split_rgba_statement (CoglBlendStringStatement *statement,
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CoglBlendStringStatement *rgb,
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CoglBlendStringStatement *a);
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#endif /* COGL_BLEND_STRING_H */
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