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