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https://github.com/KolibriOS/kolibrios.git
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107 lines
3.4 KiB
C
107 lines
3.4 KiB
C
/**************************************************************************
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*
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* Copyright 2008 Tungsten Graphics, Inc., Cedar Park, Texas.
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* All Rights Reserved.
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the
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* "Software"), to deal in the Software without restriction, including
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* without limitation the rights to use, copy, modify, merge, publish,
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* distribute, sub license, and/or sell copies of the Software, and to
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* permit persons to whom the Software is furnished to do so, subject to
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* the following conditions:
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*
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* The above copyright notice and this permission notice (including the
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* next paragraph) shall be included in all copies or substantial portions
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* of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
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* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
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* IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR
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* ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
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* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
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* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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*
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**************************************************************************/
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#include "util/u_memory.h"
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#include "pipe/p_state.h"
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#include "translate.h"
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#include "translate_cache.h"
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#include "cso_cache/cso_cache.h"
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#include "cso_cache/cso_hash.h"
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struct translate_cache {
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struct cso_hash *hash;
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};
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struct translate_cache * translate_cache_create( void )
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{
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struct translate_cache *cache = MALLOC_STRUCT(translate_cache);
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if (cache == NULL) {
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return NULL;
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}
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cache->hash = cso_hash_create();
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return cache;
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}
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static INLINE void delete_translates(struct translate_cache *cache)
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{
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struct cso_hash *hash = cache->hash;
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struct cso_hash_iter iter = cso_hash_first_node(hash);
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while (!cso_hash_iter_is_null(iter)) {
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struct translate *state = (struct translate*)cso_hash_iter_data(iter);
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iter = cso_hash_iter_next(iter);
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if (state) {
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state->release(state);
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}
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}
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}
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void translate_cache_destroy(struct translate_cache *cache)
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{
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delete_translates(cache);
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cso_hash_delete(cache->hash);
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FREE(cache);
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}
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static INLINE unsigned translate_hash_key_size(struct translate_key *key)
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{
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unsigned size = sizeof(struct translate_key) -
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sizeof(struct translate_element) * (PIPE_MAX_ATTRIBS - key->nr_elements);
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return size;
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}
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static INLINE unsigned create_key(struct translate_key *key)
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{
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unsigned hash_key;
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unsigned size = translate_hash_key_size(key);
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/*debug_printf("key size = %d, (els = %d)\n",
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size, key->nr_elements);*/
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hash_key = cso_construct_key(key, size);
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return hash_key;
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}
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struct translate * translate_cache_find(struct translate_cache *cache,
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struct translate_key *key)
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{
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unsigned hash_key = create_key(key);
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struct translate *translate = (struct translate*)
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cso_hash_find_data_from_template(cache->hash,
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hash_key,
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key, sizeof(*key));
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if (!translate) {
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/* create/insert */
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translate = translate_create(key);
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cso_hash_insert(cache->hash, hash_key, translate);
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}
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return translate;
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}
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