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82 lines
2.7 KiB
C
82 lines
2.7 KiB
C
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/*
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* Cogl
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*
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* An object oriented GL/GLES Abstraction/Utility Layer
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*
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* Copyright (C) 2012 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
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* <http://www.gnu.org/licenses/>.
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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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/* 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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