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/*
* Cogl
*
* An object oriented GL/GLES Abstraction/Utility Layer
*
* Copyright (C) 2013 Intel Corporation.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library. If not, see <http://www.gnu.org/licenses/>.
*
*
*/
#ifndef __COGL_PIPELINE_HASH_H__
#define __COGL_PIPELINE_HASH_H__
#include "cogl-pipeline-cache.h"
typedef struct
{
/* Total number of pipelines that were ever added to the hash. This
* is not decremented when a pipeline is removed. It is only used to
* generate a warning if an unusually high number of pipelines are
* generated */
int n_unique_pipelines;
/* This is the expected minimum size we could prune the hash table
* to if we were to remove all pipelines that are not in use. This
* is only updated after we prune the table */
int expected_min_size;
/* String that will be used to describe the usage of this hash table
* in the debug warning when too many pipelines are generated. This
* must be a static string because it won't be copied or freed */
const char *debug_string;
unsigned int main_state;
unsigned int layer_state;
GHashTable *table;
} CoglPipelineHashTable;
void
_cogl_pipeline_hash_table_init (CoglPipelineHashTable *hash,
unsigned int main_state,
unsigned int layer_state,
const char *debug_string);
void
_cogl_pipeline_hash_table_destroy (CoglPipelineHashTable *hash);
/*
* Gets a pipeline from the hash that has the same state as
* @key_pipeline according to the limited state bits passed to
* _cogl_pipeline_hash_table_init(). If there is no matching pipelines
* already then a copy of key_pipeline is stored in the hash so that
* it will be used next time the function is called with a similar
* pipeline. In that case the copy itself will be returned
*/
CoglPipelineCacheEntry *
_cogl_pipeline_hash_table_get (CoglPipelineHashTable *hash,
CoglPipeline *key_pipeline);
#endif /* __COGL_PIPELINE_HASH_H__ */
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