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70 lines
2.3 KiB
C
70 lines
2.3 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) 2013 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 <http://www.gnu.org/licenses/>.
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*
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*
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*/
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#ifndef __COGL_PIPELINE_HASH_H__
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#define __COGL_PIPELINE_HASH_H__
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#include "cogl-pipeline.h"
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typedef struct
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{
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/* Total number of pipelines that were ever added to the hash. This
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* is not decremented when a pipeline is removed. It is only used to
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* generate a warning if an unusually high number of pipelines are
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* generated */
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int n_unique_pipelines;
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/* String that will be used to describe the usage of this hash table
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* in the debug warning when too many pipelines are generated. This
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* must be a static string because it won't be copied or freed */
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const char *debug_string;
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unsigned int main_state;
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unsigned int layer_state;
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GHashTable *table;
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} CoglPipelineHashTable;
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void
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_cogl_pipeline_hash_table_init (CoglPipelineHashTable *hash,
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unsigned int main_state,
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unsigned int layer_state,
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const char *debug_string);
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void
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_cogl_pipeline_hash_table_destroy (CoglPipelineHashTable *hash);
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/*
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* Gets a pipeline from the hash that has the same state as
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* @key_pipeline according to the limited state bits passed to
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* _cogl_pipeline_hash_table_init(). If there is no matching pipelines
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* already then a copy of key_pipeline is stored in the hash so that
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* it will be used next time the function is called with a similar
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* pipeline. In that case the copy itself will be returned
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*/
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CoglPipeline *
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_cogl_pipeline_hash_table_get (CoglPipelineHashTable *hash,
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CoglPipeline *key_pipeline);
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#endif /* __COGL_PIPELINE_HASH_H__ */
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