1 /**************************************************************************
3 * Copyright 2007 Tungsten Graphics, Inc., Cedar Park, Texas.
6 * Permission is hereby granted, free of charge, to any person obtaining a
7 * copy of this software and associated documentation files (the
8 * "Software"), to deal in the Software without restriction, including
9 * without limitation the rights to use, copy, modify, merge, publish,
10 * distribute, sub license, and/or sell copies of the Software, and to
11 * permit persons to whom the Software is furnished to do so, subject to
12 * the following conditions:
14 * The above copyright notice and this permission notice (including the
15 * next paragraph) shall be included in all copies or substantial portions
18 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
19 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
20 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
21 * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR
22 * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
23 * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
24 * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
26 **************************************************************************/
32 #include "util/u_memory.h"
34 #include "draw/draw_context.h"
35 #include "draw/draw_context.h"
37 #include "sp_context.h"
39 #include "sp_texture.h"
40 #include "sp_tex_sample.h"
41 #include "sp_tex_tile_cache.h"
45 struct pipe_sampler_state base;
46 struct sp_sampler_varient *varients;
47 struct sp_sampler_varient *current;
50 static struct sp_sampler *sp_sampler( struct pipe_sampler_state *sampler )
52 return (struct sp_sampler *)sampler;
57 softpipe_create_sampler_state(struct pipe_context *pipe,
58 const struct pipe_sampler_state *sampler)
60 struct sp_sampler *sp_sampler = CALLOC_STRUCT(sp_sampler);
62 sp_sampler->base = *sampler;
63 sp_sampler->varients = NULL;
65 return (void *)sp_sampler;
70 softpipe_bind_sampler_states(struct pipe_context *pipe,
71 unsigned num, void **sampler)
73 struct softpipe_context *softpipe = softpipe_context(pipe);
76 assert(num <= PIPE_MAX_SAMPLERS);
79 if (num == softpipe->num_samplers &&
80 !memcmp(softpipe->sampler, sampler, num * sizeof(void *)))
83 draw_flush(softpipe->draw);
85 for (i = 0; i < num; ++i)
86 softpipe->sampler[i] = sampler[i];
87 for (i = num; i < PIPE_MAX_SAMPLERS; ++i)
88 softpipe->sampler[i] = NULL;
90 softpipe->num_samplers = num;
92 softpipe->dirty |= SP_NEW_SAMPLER;
97 softpipe_bind_vertex_sampler_states(struct pipe_context *pipe,
98 unsigned num_samplers,
101 struct softpipe_context *softpipe = softpipe_context(pipe);
104 assert(num_samplers <= PIPE_MAX_VERTEX_SAMPLERS);
106 /* Check for no-op */
107 if (num_samplers == softpipe->num_vertex_samplers &&
108 !memcmp(softpipe->vertex_samplers, samplers, num_samplers * sizeof(void *)))
111 draw_flush(softpipe->draw);
113 for (i = 0; i < num_samplers; ++i)
114 softpipe->vertex_samplers[i] = samplers[i];
115 for (i = num_samplers; i < PIPE_MAX_VERTEX_SAMPLERS; ++i)
116 softpipe->vertex_samplers[i] = NULL;
118 softpipe->num_vertex_samplers = num_samplers;
120 softpipe->dirty |= SP_NEW_SAMPLER;
124 struct pipe_sampler_view *
125 softpipe_create_sampler_view(struct pipe_context *pipe,
126 struct pipe_texture *texture,
127 const struct pipe_sampler_view *templ)
129 struct pipe_sampler_view *view = CALLOC_STRUCT(pipe_sampler_view);
133 view->reference.count = 1;
134 view->texture = NULL;
135 pipe_texture_reference(&view->texture, texture);
136 view->context = pipe;
144 softpipe_sampler_view_destroy(struct pipe_context *pipe,
145 struct pipe_sampler_view *view)
147 pipe_texture_reference(&view->texture, NULL);
153 softpipe_set_sampler_views(struct pipe_context *pipe,
155 struct pipe_sampler_view **views)
157 struct softpipe_context *softpipe = softpipe_context(pipe);
160 assert(num <= PIPE_MAX_SAMPLERS);
162 /* Check for no-op */
163 if (num == softpipe->num_sampler_views &&
164 !memcmp(softpipe->sampler_views, views, num * sizeof(struct pipe_sampler_view *)))
167 draw_flush(softpipe->draw);
169 for (i = 0; i < PIPE_MAX_SAMPLERS; i++) {
170 struct pipe_sampler_view *view = i < num ? views[i] : NULL;
172 pipe_sampler_view_reference(&softpipe->sampler_views[i], view);
173 sp_tex_tile_cache_set_sampler_view(softpipe->tex_cache[i], view);
176 softpipe->num_sampler_views = num;
178 softpipe->dirty |= SP_NEW_TEXTURE;
183 softpipe_set_vertex_sampler_views(struct pipe_context *pipe,
185 struct pipe_sampler_view **views)
187 struct softpipe_context *softpipe = softpipe_context(pipe);
190 assert(num <= PIPE_MAX_VERTEX_SAMPLERS);
192 /* Check for no-op */
193 if (num == softpipe->num_vertex_sampler_views &&
194 !memcmp(softpipe->vertex_sampler_views, views, num * sizeof(struct pipe_sampler_view *))) {
198 draw_flush(softpipe->draw);
200 for (i = 0; i < PIPE_MAX_VERTEX_SAMPLERS; i++) {
201 struct pipe_sampler_view *view = i < num ? views[i] : NULL;
203 pipe_sampler_view_reference(&softpipe->vertex_sampler_views[i], view);
204 sp_tex_tile_cache_set_sampler_view(softpipe->vertex_tex_cache[i], view);
207 softpipe->num_vertex_sampler_views = num;
209 softpipe->dirty |= SP_NEW_TEXTURE;
214 * Find/create an sp_sampler_varient object for sampling the given texture,
215 * sampler and tex unit.
217 * Note that the tex unit is significant. We can't re-use a sampler
218 * varient for multiple texture units because the sampler varient contains
219 * the texture object pointer. If the texture object pointer were stored
220 * somewhere outside the sampler varient, we could re-use samplers for
221 * multiple texture units.
223 static struct sp_sampler_varient *
224 get_sampler_varient( unsigned unit,
225 struct sp_sampler *sampler,
226 struct pipe_texture *texture,
229 struct softpipe_texture *sp_texture = softpipe_texture(texture);
230 struct sp_sampler_varient *v = NULL;
231 union sp_sampler_key key;
233 /* if this fails, widen the key.unit field and update this assertion */
234 assert(PIPE_MAX_SAMPLERS <= 16);
236 key.bits.target = sp_texture->base.target;
237 key.bits.is_pot = sp_texture->pot;
238 key.bits.processor = processor;
239 key.bits.unit = unit;
242 if (sampler->current &&
243 key.value == sampler->current->key.value) {
244 v = sampler->current;
248 for (v = sampler->varients; v; v = v->next)
249 if (v->key.value == key.value)
253 v = sp_create_sampler_varient( &sampler->base, key );
254 v->next = sampler->varients;
255 sampler->varients = v;
259 sampler->current = v;
267 softpipe_reset_sampler_varients(struct softpipe_context *softpipe)
271 /* It's a bit hard to build these samplers ahead of time -- don't
272 * really know which samplers are going to be used for vertex and
275 for (i = 0; i <= softpipe->vs->max_sampler; i++) {
276 if (softpipe->vertex_samplers[i]) {
277 struct pipe_texture *texture = NULL;
279 if (softpipe->vertex_sampler_views[i]) {
280 texture = softpipe->vertex_sampler_views[i]->texture;
283 softpipe->tgsi.vert_samplers_list[i] =
284 get_sampler_varient( i,
285 sp_sampler(softpipe->vertex_samplers[i]),
287 TGSI_PROCESSOR_VERTEX );
289 sp_sampler_varient_bind_texture( softpipe->tgsi.vert_samplers_list[i],
290 softpipe->vertex_tex_cache[i],
295 for (i = 0; i <= softpipe->fs->info.file_max[TGSI_FILE_SAMPLER]; i++) {
296 if (softpipe->sampler[i]) {
297 struct pipe_texture *texture = NULL;
299 if (softpipe->sampler_views[i]) {
300 texture = softpipe->sampler_views[i]->texture;
303 softpipe->tgsi.frag_samplers_list[i] =
304 get_sampler_varient( i,
305 sp_sampler(softpipe->sampler[i]),
307 TGSI_PROCESSOR_FRAGMENT );
309 sp_sampler_varient_bind_texture( softpipe->tgsi.frag_samplers_list[i],
310 softpipe->tex_cache[i],
319 softpipe_delete_sampler_state(struct pipe_context *pipe,
322 struct sp_sampler *sp_sampler = (struct sp_sampler *)sampler;
323 struct sp_sampler_varient *v, *tmp;
325 for (v = sp_sampler->varients; v; v = tmp) {
327 sp_sampler_varient_destroy(v);