78 lines
2.9 KiB
C
78 lines
2.9 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) 2013 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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#pragma once
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#include "cogl/cogl-pipeline-cache.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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/* This is the expected minimum size we could prune the hash table
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* to if we were to remove all pipelines that are not in use. This
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* is only updated after we prune the table */
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int expected_min_size;
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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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CoglPipelineCacheEntry *
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_cogl_pipeline_hash_table_get (CoglPipelineHashTable *hash,
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CoglPipeline *key_pipeline);
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