src/gallium/auxiliary/translate/translate_cache.h

   1 /*
   2  * Copyright 2008 VMware, Inc.
   3  * All Rights Reserved.
   4  *
   5  * Permission is hereby granted, free of charge, to any person obtaining a
   6  * copy of this software and associated documentation files (the "Software"),
   7  * to deal in the Software without restriction, including without limitation
   8  * on the rights to use, copy, modify, merge, publish, distribute, sub
   9  * license, and/or sell copies of the Software, and to permit persons to whom
  10  * the Software is furnished to do so, subject to the following conditions:
  11  *
  12  * The above copyright notice and this permission notice (including the next
  13  * paragraph) shall be included in all copies or substantial portions of the
  14  * Software.
  15  *
  16  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  17  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  18  * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.  IN NO EVENT SHALL
  19  * VMWARE AND/OR THEIR SUPPLIERS BE LIABLE FOR ANY CLAIM,
  20  * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
  21  * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
  22  * USE OR OTHER DEALINGS IN THE SOFTWARE.
  23  */
  24 #ifndef _TRANSLATE_CACHE_H
  25 #define _TRANSLATE_CACHE_H
  26
  27
  28 /*******************************************************************************
  29  * Translate cache.
  30  * Simply used to cache created translates. Avoids unecessary creation of
  31  * translate's if one suitable for a given translate_key has already been
  32  * created.
  33  *
  34  * Note: this functionality depends and requires the CSO module.
  35  */
  36 struct translate_cache;
  37
  38 struct translate_key;
  39 struct translate;
  40
  41 struct translate_cache *translate_cache_create( void );
  42 void translate_cache_destroy(struct translate_cache *cache);
  43
  44 /**
  45  * Will try to find a translate structure matched by the given key.
  46  * If such a structure doesn't exist in the cache the function
  47  * will automatically create it, insert it in the cache and
  48  * return the created version.
  49  *
  50  */
  51 struct translate *translate_cache_find(struct translate_cache *cache,
  52                                        struct translate_key *key);
  53
  54 #endif