d501952bba9e5846830cd723952ea82e74fd65c9
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
);