| /************************************************************************** |
| * |
| * 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 "draw/draw_context.h" |
| |
| #include "sp_context.h" |
| #include "sp_state.h" |
| #include "sp_texture.h" |
| #include "sp_tex_sample.h" |
| #include "sp_tex_tile_cache.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_bind_vertex_sampler_states(struct pipe_context *pipe, |
| unsigned num_samplers, |
| void **samplers) |
| { |
| struct softpipe_context *softpipe = softpipe_context(pipe); |
| unsigned i; |
| |
| assert(num_samplers <= PIPE_MAX_VERTEX_SAMPLERS); |
| |
| /* Check for no-op */ |
| if (num_samplers == softpipe->num_vertex_samplers && |
| !memcmp(softpipe->vertex_samplers, samplers, num_samplers * sizeof(void *))) |
| return; |
| |
| draw_flush(softpipe->draw); |
| |
| for (i = 0; i < num_samplers; ++i) |
| softpipe->vertex_samplers[i] = samplers[i]; |
| for (i = num_samplers; i < PIPE_MAX_VERTEX_SAMPLERS; ++i) |
| softpipe->vertex_samplers[i] = NULL; |
| |
| softpipe->num_vertex_samplers = num_samplers; |
| |
| 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_tex_tile_cache_set_texture(softpipe->tex_cache[i], tex); |
| } |
| |
| softpipe->num_textures = num; |
| |
| softpipe->dirty |= SP_NEW_TEXTURE; |
| } |
| |
| |
| void |
| softpipe_set_vertex_sampler_textures(struct pipe_context *pipe, |
| unsigned num_textures, |
| struct pipe_texture **textures) |
| { |
| struct softpipe_context *softpipe = softpipe_context(pipe); |
| uint i; |
| |
| assert(num_textures <= PIPE_MAX_VERTEX_SAMPLERS); |
| |
| /* Check for no-op */ |
| if (num_textures == softpipe->num_vertex_textures && |
| !memcmp(softpipe->vertex_textures, textures, num_textures * sizeof(struct pipe_texture *))) { |
| return; |
| } |
| |
| draw_flush(softpipe->draw); |
| |
| for (i = 0; i < PIPE_MAX_VERTEX_SAMPLERS; i++) { |
| struct pipe_texture *tex = i < num_textures ? textures[i] : NULL; |
| |
| pipe_texture_reference(&softpipe->vertex_textures[i], tex); |
| sp_tex_tile_cache_set_texture(softpipe->vertex_tex_cache[i], tex); |
| } |
| |
| softpipe->num_vertex_textures = num_textures; |
| |
| softpipe->dirty |= SP_NEW_TEXTURE; |
| } |
| |
| |
| /** |
| * Find/create an sp_sampler_varient object for sampling the given texture, |
| * sampler and tex unit. |
| * |
| * Note that the tex unit is significant. We can't re-use a sampler |
| * varient for multiple texture units because the sampler varient contains |
| * the texture object pointer. If the texture object pointer were stored |
| * somewhere outside the sampler varient, we could re-use samplers for |
| * multiple texture units. |
| */ |
| static struct sp_sampler_varient * |
| get_sampler_varient( unsigned unit, |
| 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; |
| |
| /* if this fails, widen the key.unit field and update this assertion */ |
| assert(PIPE_MAX_SAMPLERS <= 16); |
| |
| key.bits.target = sp_texture->base.target; |
| key.bits.is_pot = sp_texture->pot; |
| key.bits.processor = processor; |
| key.bits.unit = unit; |
| 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->vertex_samplers[i]) { |
| softpipe->tgsi.vert_samplers_list[i] = |
| get_sampler_varient( i, |
| sp_sampler(softpipe->vertex_samplers[i]), |
| softpipe->vertex_textures[i], |
| TGSI_PROCESSOR_VERTEX ); |
| |
| sp_sampler_varient_bind_texture( softpipe->tgsi.vert_samplers_list[i], |
| softpipe->vertex_tex_cache[i], |
| softpipe->vertex_textures[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( i, |
| 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 ); |
| } |
| |
| |
| |