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97 lines
3.3 KiB
C
97 lines
3.3 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) 2012 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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#ifndef __COGL_SAMPLER_CACHE_PRIVATE_H
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#define __COGL_SAMPLER_CACHE_PRIVATE_H
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#include "cogl-context.h"
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#include "cogl-gl-header.h"
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/* These aren't defined in the GLES headers */
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#ifndef GL_CLAMP_TO_BORDER
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#define GL_CLAMP_TO_BORDER 0x812d
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#endif
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#ifndef GL_MIRRORED_REPEAT
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#define GL_MIRRORED_REPEAT 0x8370
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#endif
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/* GL_ALWAYS is just used here as a value that is known not to clash
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* with any valid GL wrap modes.
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*
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* XXX: keep the values in sync with the CoglPipelineWrapMode enum
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* so no conversion is actually needed.
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*/
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typedef enum _CoglSamplerCacheWrapMode
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{
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COGL_SAMPLER_CACHE_WRAP_MODE_REPEAT = GL_REPEAT,
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COGL_SAMPLER_CACHE_WRAP_MODE_MIRRORED_REPEAT = GL_MIRRORED_REPEAT,
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COGL_SAMPLER_CACHE_WRAP_MODE_CLAMP_TO_EDGE = GL_CLAMP_TO_EDGE,
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COGL_SAMPLER_CACHE_WRAP_MODE_CLAMP_TO_BORDER = GL_CLAMP_TO_BORDER,
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COGL_SAMPLER_CACHE_WRAP_MODE_AUTOMATIC = GL_ALWAYS
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} CoglSamplerCacheWrapMode;
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typedef struct _CoglSamplerCache CoglSamplerCache;
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typedef struct _CoglSamplerCacheEntry
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{
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GLuint sampler_object;
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GLenum min_filter;
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GLenum mag_filter;
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CoglSamplerCacheWrapMode wrap_mode_s;
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CoglSamplerCacheWrapMode wrap_mode_t;
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CoglSamplerCacheWrapMode wrap_mode_p;
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} CoglSamplerCacheEntry;
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CoglSamplerCache *
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_cogl_sampler_cache_new (CoglContext *context);
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const CoglSamplerCacheEntry *
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_cogl_sampler_cache_get_default_entry (CoglSamplerCache *cache);
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const CoglSamplerCacheEntry *
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_cogl_sampler_cache_update_wrap_modes (CoglSamplerCache *cache,
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const CoglSamplerCacheEntry *old_entry,
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CoglSamplerCacheWrapMode wrap_mode_s,
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CoglSamplerCacheWrapMode wrap_mode_t,
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CoglSamplerCacheWrapMode wrap_mode_p);
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const CoglSamplerCacheEntry *
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_cogl_sampler_cache_update_filters (CoglSamplerCache *cache,
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const CoglSamplerCacheEntry *old_entry,
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GLenum min_filter,
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GLenum mag_filter);
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void
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_cogl_sampler_cache_free (CoglSamplerCache *cache);
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#endif /* __COGL_SAMPLER_CACHE_PRIVATE_H */
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