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/**************************************************************************
*
* Copyright 2007 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.
*
**************************************************************************/
/*
* Authors:
* Zack Rusin <zack@tungstengraphics.com>
*/
#include "st_cache.h"
#include "st_context.h"
#include "pipe/p_state.h"
#include "cso_cache/cso_cache.h"
#include "cso_cache/cso_hash.h"
/* Those function will either find the state of the given template
* in the cache or they will create a new state from the given
* template, insert it in the cache and return it.
*/
/*
* If the driver returns 0 from the create method then they will assign
* the data member of the cso to be the template itself.
*/
const struct cso_blend * st_cached_blend_state(struct st_context *st,
const struct pipe_blend_state *templ)
{
unsigned hash_key = cso_construct_key((void*)templ, sizeof(struct pipe_blend_state));
struct cso_hash_iter iter = cso_find_state_template(st->cache,
hash_key, CSO_BLEND,
(void*)templ);
if (cso_hash_iter_is_null(iter)) {
struct cso_blend *cso = malloc(sizeof(struct cso_blend));
memcpy(&cso->state, templ, sizeof(struct pipe_blend_state));
cso->data = st->pipe->create_blend_state(st->pipe, &cso->state);
if (!cso->data)
cso->data = &cso->state;
cso->delete_state = (cso_state_callback)st->pipe->delete_blend_state;
cso->context = st->pipe;
iter = cso_insert_state(st->cache, hash_key, CSO_BLEND, cso);
}
return ((struct cso_blend *)cso_hash_iter_data(iter));
}
const struct cso_sampler *
st_cached_sampler_state(struct st_context *st,
const struct pipe_sampler_state *templ)
{
unsigned hash_key = cso_construct_key((void*)templ, sizeof(struct pipe_sampler_state));
struct cso_hash_iter iter = cso_find_state_template(st->cache,
hash_key, CSO_SAMPLER,
(void*)templ);
if (cso_hash_iter_is_null(iter)) {
struct cso_sampler *cso = malloc(sizeof(struct cso_sampler));
memcpy(&cso->state, templ, sizeof(struct pipe_sampler_state));
cso->data = st->pipe->create_sampler_state(st->pipe, &cso->state);
if (!cso->data)
cso->data = &cso->state;
cso->delete_state = (cso_state_callback)st->pipe->delete_sampler_state;
cso->context = st->pipe;
iter = cso_insert_state(st->cache, hash_key, CSO_SAMPLER, cso);
}
return (struct cso_sampler*)(cso_hash_iter_data(iter));
}
const struct cso_depth_stencil_alpha *
st_cached_depth_stencil_alpha_state(struct st_context *st,
const struct pipe_depth_stencil_alpha_state *templ)
{
unsigned hash_key = cso_construct_key((void*)templ,
sizeof(struct pipe_depth_stencil_alpha_state));
struct cso_hash_iter iter = cso_find_state_template(st->cache,
hash_key,
CSO_DEPTH_STENCIL_ALPHA,
(void*)templ);
if (cso_hash_iter_is_null(iter)) {
struct cso_depth_stencil_alpha *cso = malloc(sizeof(struct cso_depth_stencil_alpha));
memcpy(&cso->state, templ, sizeof(struct pipe_depth_stencil_alpha_state));
cso->data = st->pipe->create_depth_stencil_alpha_state(st->pipe, &cso->state);
if (!cso->data)
cso->data = &cso->state;
cso->delete_state = (cso_state_callback)st->pipe->delete_depth_stencil_alpha_state;
cso->context = st->pipe;
iter = cso_insert_state(st->cache, hash_key, CSO_DEPTH_STENCIL_ALPHA, cso);
}
return (struct cso_depth_stencil_alpha*)(cso_hash_iter_data(iter));
}
const struct cso_rasterizer* st_cached_rasterizer_state(
struct st_context *st,
const struct pipe_rasterizer_state *templ)
{
unsigned hash_key = cso_construct_key((void*)templ,
sizeof(struct pipe_rasterizer_state));
struct cso_hash_iter iter = cso_find_state_template(st->cache,
hash_key, CSO_RASTERIZER,
(void*)templ);
if (cso_hash_iter_is_null(iter)) {
struct cso_rasterizer *cso = malloc(sizeof(struct cso_rasterizer));
memcpy(&cso->state, templ, sizeof(struct pipe_rasterizer_state));
cso->data = st->pipe->create_rasterizer_state(st->pipe, &cso->state);
if (!cso->data)
cso->data = &cso->state;
cso->delete_state = (cso_state_callback)st->pipe->delete_rasterizer_state;
cso->context = st->pipe;
iter = cso_insert_state(st->cache, hash_key, CSO_RASTERIZER, cso);
}
return (struct cso_rasterizer*)(cso_hash_iter_data(iter));
}
const struct cso_fragment_shader *
st_cached_fs_state(struct st_context *st,
const struct pipe_shader_state *templ)
{
unsigned hash_key = cso_construct_key((void*)templ,
sizeof(struct pipe_shader_state));
struct cso_hash_iter iter = cso_find_state_template(st->cache,
hash_key, CSO_FRAGMENT_SHADER,
(void*)templ);
if (cso_hash_iter_is_null(iter)) {
struct cso_fragment_shader *cso = malloc(sizeof(struct cso_fragment_shader));
memcpy(&cso->state, templ, sizeof(struct pipe_shader_state));
cso->data = st->pipe->create_fs_state(st->pipe, &cso->state);
if (!cso->data)
cso->data = &cso->state;
cso->delete_state = (cso_state_callback)st->pipe->delete_fs_state;
cso->context = st->pipe;
iter = cso_insert_state(st->cache, hash_key, CSO_FRAGMENT_SHADER, cso);
}
return (struct cso_fragment_shader*)(cso_hash_iter_data(iter));
}
const struct cso_vertex_shader *
st_cached_vs_state(struct st_context *st,
const struct pipe_shader_state *templ)
{
unsigned hash_key = cso_construct_key((void*)templ,
sizeof(struct pipe_shader_state));
struct cso_hash_iter iter = cso_find_state_template(st->cache,
hash_key, CSO_VERTEX_SHADER,
(void*)templ);
if (cso_hash_iter_is_null(iter)) {
struct cso_vertex_shader *cso = malloc(sizeof(struct cso_vertex_shader));
memcpy(&cso->state, templ, sizeof(struct pipe_shader_state));
cso->data = st->pipe->create_vs_state(st->pipe, &cso->state);
if (!cso->data)
cso->data = &cso->state;
cso->delete_state = (cso_state_callback)st->pipe->delete_vs_state;
cso->context = st->pipe;
iter = cso_insert_state(st->cache, hash_key, CSO_VERTEX_SHADER, cso);
}
return (struct cso_vertex_shader*)(cso_hash_iter_data(iter));
}
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