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/*
* Cogl
*
* A Low Level GPU Graphics and Utilities API
*
* Copyright (C) 2012 Intel Corporation.
*
* Permission is hereby granted, free of charge, to any person
* obtaining a copy of this software and associated documentation
* files (the "Software"), to deal in the Software without
* restriction, including without limitation the rights to use, copy,
* modify, merge, publish, distribute, sublicense, and/or sell copies
* of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be
* included in all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*
*
*/
#ifndef __COGL_SAMPLER_CACHE_PRIVATE_H
#define __COGL_SAMPLER_CACHE_PRIVATE_H
#include "cogl-context.h"
#include "cogl-gl-header.h"
/* These aren't defined in the GLES headers */
#ifndef GL_CLAMP_TO_BORDER
#define GL_CLAMP_TO_BORDER 0x812d
#endif
#ifndef GL_MIRRORED_REPEAT
#define GL_MIRRORED_REPEAT 0x8370
#endif
/* GL_ALWAYS is just used here as a value that is known not to clash
* with any valid GL wrap modes.
*
* XXX: keep the values in sync with the CoglPipelineWrapMode enum
* so no conversion is actually needed.
*/
typedef enum _CoglSamplerCacheWrapMode
{
COGL_SAMPLER_CACHE_WRAP_MODE_REPEAT = GL_REPEAT,
COGL_SAMPLER_CACHE_WRAP_MODE_MIRRORED_REPEAT = GL_MIRRORED_REPEAT,
COGL_SAMPLER_CACHE_WRAP_MODE_CLAMP_TO_EDGE = GL_CLAMP_TO_EDGE,
COGL_SAMPLER_CACHE_WRAP_MODE_CLAMP_TO_BORDER = GL_CLAMP_TO_BORDER,
COGL_SAMPLER_CACHE_WRAP_MODE_AUTOMATIC = GL_ALWAYS
} CoglSamplerCacheWrapMode;
typedef struct _CoglSamplerCache CoglSamplerCache;
typedef struct _CoglSamplerCacheEntry
{
GLuint sampler_object;
GLenum min_filter;
GLenum mag_filter;
CoglSamplerCacheWrapMode wrap_mode_s;
CoglSamplerCacheWrapMode wrap_mode_t;
CoglSamplerCacheWrapMode wrap_mode_p;
} CoglSamplerCacheEntry;
CoglSamplerCache *
_cogl_sampler_cache_new (CoglContext *context);
const CoglSamplerCacheEntry *
_cogl_sampler_cache_get_default_entry (CoglSamplerCache *cache);
const CoglSamplerCacheEntry *
_cogl_sampler_cache_update_wrap_modes (CoglSamplerCache *cache,
const CoglSamplerCacheEntry *old_entry,
CoglSamplerCacheWrapMode wrap_mode_s,
CoglSamplerCacheWrapMode wrap_mode_t,
CoglSamplerCacheWrapMode wrap_mode_p);
const CoglSamplerCacheEntry *
_cogl_sampler_cache_update_filters (CoglSamplerCache *cache,
const CoglSamplerCacheEntry *old_entry,
GLenum min_filter,
GLenum mag_filter);
void
_cogl_sampler_cache_free (CoglSamplerCache *cache);
#endif /* __COGL_SAMPLER_CACHE_PRIVATE_H */
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