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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:
* Brian Paul
*/
#include "util/u_memory.h"
#include "draw/draw_context.h"
#include "sp_context.h"
#include "sp_context.h"
#include "sp_state.h"
#include "sp_texture.h"
#include "sp_tile_cache.h"
#include "sp_tex_sample.h"
#include "draw/draw_context.h"
struct sp_sampler {
struct pipe_sampler_state base;
struct sp_sampler_varient *varients;
struct sp_sampler_varient *current;
};
static struct sp_sampler *sp_sampler( struct pipe_sampler_state *sampler )
{
return (struct sp_sampler *)sampler;
}
void *
softpipe_create_sampler_state(struct pipe_context *pipe,
const struct pipe_sampler_state *sampler)
{
struct sp_sampler *sp_sampler = CALLOC_STRUCT(sp_sampler);
sp_sampler->base = *sampler;
sp_sampler->varients = NULL;
return (void *)sp_sampler;
}
void
softpipe_bind_sampler_states(struct pipe_context *pipe,
unsigned num, void **sampler)
{
struct softpipe_context *softpipe = softpipe_context(pipe);
unsigned i;
assert(num <= PIPE_MAX_SAMPLERS);
/* Check for no-op */
if (num == softpipe->num_samplers &&
!memcmp(softpipe->sampler, sampler, num * sizeof(void *)))
return;
draw_flush(softpipe->draw);
for (i = 0; i < num; ++i)
softpipe->sampler[i] = sampler[i];
for (i = num; i < PIPE_MAX_SAMPLERS; ++i)
softpipe->sampler[i] = NULL;
softpipe->num_samplers = num;
softpipe->dirty |= SP_NEW_SAMPLER;
}
void
softpipe_set_sampler_textures(struct pipe_context *pipe,
unsigned num, struct pipe_texture **texture)
{
struct softpipe_context *softpipe = softpipe_context(pipe);
uint i;
assert(num <= PIPE_MAX_SAMPLERS);
/* Check for no-op */
if (num == softpipe->num_textures &&
!memcmp(softpipe->texture, texture, num * sizeof(struct pipe_texture *)))
return;
draw_flush(softpipe->draw);
for (i = 0; i < PIPE_MAX_SAMPLERS; i++) {
struct pipe_texture *tex = i < num ? texture[i] : NULL;
pipe_texture_reference(&softpipe->texture[i], tex);
sp_tile_cache_set_texture(softpipe->tex_cache[i], tex);
}
softpipe->num_textures = num;
softpipe->dirty |= SP_NEW_TEXTURE;
}
static struct sp_sampler_varient *
get_sampler_varient( struct sp_sampler *sampler,
struct pipe_texture *texture,
unsigned processor )
{
struct softpipe_texture *sp_texture = softpipe_texture(texture);
struct sp_sampler_varient *v = NULL;
union sp_sampler_key key;
key.bits.target = sp_texture->base.target;
key.bits.is_pot = sp_texture->pot;
key.bits.processor = processor;
key.bits.pad = 0;
if (sampler->current &&
key.value == sampler->current->key.value) {
v = sampler->current;
}
if (v == NULL) {
for (v = sampler->varients; v; v = v->next)
if (v->key.value == key.value)
break;
if (v == NULL) {
v = sp_create_sampler_varient( &sampler->base, key );
v->next = sampler->varients;
sampler->varients = v;
}
}
sampler->current = v;
return v;
}
void
softpipe_reset_sampler_varients(struct softpipe_context *softpipe)
{
int i;
/* It's a bit hard to build these samplers ahead of time -- don't
* really know which samplers are going to be used for vertex and
* fragment programs.
*/
for (i = 0; i <= softpipe->vs->max_sampler; i++) {
if (softpipe->sampler[i]) {
softpipe->tgsi.vert_samplers_list[i] =
get_sampler_varient( sp_sampler(softpipe->sampler[i]),
softpipe->texture[i],
TGSI_PROCESSOR_VERTEX );
sp_sampler_varient_bind_texture( softpipe->tgsi.vert_samplers_list[i],
softpipe->tex_cache[i],
softpipe->texture[i] );
}
}
for (i = 0; i <= softpipe->fs->info.file_max[TGSI_FILE_SAMPLER]; i++) {
if (softpipe->sampler[i]) {
softpipe->tgsi.frag_samplers_list[i] =
get_sampler_varient( sp_sampler(softpipe->sampler[i]),
softpipe->texture[i],
TGSI_PROCESSOR_FRAGMENT );
sp_sampler_varient_bind_texture( softpipe->tgsi.frag_samplers_list[i],
softpipe->tex_cache[i],
softpipe->texture[i] );
}
}
}
void
softpipe_delete_sampler_state(struct pipe_context *pipe,
void *sampler)
{
struct sp_sampler *sp_sampler = (struct sp_sampler *)sampler;
struct sp_sampler_varient *v, *tmp;
for (v = sp_sampler->varients; v; v = tmp) {
tmp = v->next;
sp_sampler_varient_destroy(v);
}
FREE( sampler );
}
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