1 /**************************************************************************
3 * Copyright 2007 VMware, Inc.
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 VMWARE 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_inlines.h"
33 #include "util/u_memory.h"
35 #include "draw/draw_context.h"
37 #include "lp_context.h"
38 #include "lp_screen.h"
41 #include "state_tracker/sw_winsys.h"
45 llvmpipe_create_sampler_state(struct pipe_context
*pipe
,
46 const struct pipe_sampler_state
*sampler
)
48 struct pipe_sampler_state
*state
= mem_dup(sampler
, sizeof *sampler
);
50 if (LP_PERF
& PERF_NO_MIP_LINEAR
) {
51 if (state
->min_mip_filter
== PIPE_TEX_MIPFILTER_LINEAR
)
52 state
->min_mip_filter
= PIPE_TEX_MIPFILTER_NEAREST
;
55 if (LP_PERF
& PERF_NO_MIPMAPS
)
56 state
->min_mip_filter
= PIPE_TEX_MIPFILTER_NONE
;
58 if (LP_PERF
& PERF_NO_LINEAR
) {
59 state
->mag_img_filter
= PIPE_TEX_FILTER_NEAREST
;
60 state
->min_img_filter
= PIPE_TEX_FILTER_NEAREST
;
68 llvmpipe_bind_sampler_states(struct pipe_context
*pipe
,
74 struct llvmpipe_context
*llvmpipe
= llvmpipe_context(pipe
);
77 assert(shader
< PIPE_SHADER_TYPES
);
78 assert(start
+ num
<= ARRAY_SIZE(llvmpipe
->samplers
[shader
]));
80 draw_flush(llvmpipe
->draw
);
82 /* set the new samplers */
83 for (i
= 0; i
< num
; i
++) {
84 llvmpipe
->samplers
[shader
][start
+ i
] = samplers
[i
];
87 /* find highest non-null samplers[] entry */
89 unsigned j
= MAX2(llvmpipe
->num_samplers
[shader
], start
+ num
);
90 while (j
> 0 && llvmpipe
->samplers
[shader
][j
- 1] == NULL
)
92 llvmpipe
->num_samplers
[shader
] = j
;
95 if (shader
== PIPE_SHADER_VERTEX
|| shader
== PIPE_SHADER_GEOMETRY
) {
96 draw_set_samplers(llvmpipe
->draw
,
98 llvmpipe
->samplers
[shader
],
99 llvmpipe
->num_samplers
[shader
]);
102 llvmpipe
->dirty
|= LP_NEW_SAMPLER
;
108 llvmpipe_set_sampler_views(struct pipe_context
*pipe
,
112 struct pipe_sampler_view
**views
)
114 struct llvmpipe_context
*llvmpipe
= llvmpipe_context(pipe
);
117 assert(num
<= PIPE_MAX_SHADER_SAMPLER_VIEWS
);
119 assert(shader
< PIPE_SHADER_TYPES
);
120 assert(start
+ num
<= ARRAY_SIZE(llvmpipe
->sampler_views
[shader
]));
122 draw_flush(llvmpipe
->draw
);
124 /* set the new sampler views */
125 for (i
= 0; i
< num
; i
++) {
126 /* Note: we're using pipe_sampler_view_release() here to work around
127 * a possible crash when the old view belongs to another context that
128 * was already destroyed.
130 pipe_sampler_view_release(pipe
,
131 &llvmpipe
->sampler_views
[shader
][start
+ i
]);
133 * Warn if someone tries to set a view created in a different context
134 * (which is why we need the hack above in the first place).
135 * An assert would be better but st/mesa relies on it...
137 if (views
[i
] && views
[i
]->context
!= pipe
) {
138 debug_printf("Illegal setting of sampler_view %d created in another "
141 pipe_sampler_view_reference(&llvmpipe
->sampler_views
[shader
][start
+ i
],
145 /* find highest non-null sampler_views[] entry */
147 unsigned j
= MAX2(llvmpipe
->num_sampler_views
[shader
], start
+ num
);
148 while (j
> 0 && llvmpipe
->sampler_views
[shader
][j
- 1] == NULL
)
150 llvmpipe
->num_sampler_views
[shader
] = j
;
153 if (shader
== PIPE_SHADER_VERTEX
|| shader
== PIPE_SHADER_GEOMETRY
) {
154 draw_set_sampler_views(llvmpipe
->draw
,
156 llvmpipe
->sampler_views
[shader
],
157 llvmpipe
->num_sampler_views
[shader
]);
160 llvmpipe
->dirty
|= LP_NEW_SAMPLER_VIEW
;
165 static struct pipe_sampler_view
*
166 llvmpipe_create_sampler_view(struct pipe_context
*pipe
,
167 struct pipe_resource
*texture
,
168 const struct pipe_sampler_view
*templ
)
170 struct pipe_sampler_view
*view
= CALLOC_STRUCT(pipe_sampler_view
);
172 * XXX we REALLY want to see the correct bind flag here but the OpenGL
173 * state tracker can't guarantee that at least for texture buffer objects.
175 if (!(texture
->bind
& PIPE_BIND_SAMPLER_VIEW
))
176 debug_printf("Illegal sampler view creation without bind flag\n");
180 view
->reference
.count
= 1;
181 view
->texture
= NULL
;
182 pipe_resource_reference(&view
->texture
, texture
);
183 view
->context
= pipe
;
187 * This is possibly too lenient, but the primary reason is just
188 * to catch state trackers which forget to initialize this, so
189 * it only catches clearly impossible view targets.
191 if (view
->target
!= texture
->target
) {
192 if (view
->target
== PIPE_TEXTURE_1D
)
193 assert(texture
->target
== PIPE_TEXTURE_1D_ARRAY
);
194 else if (view
->target
== PIPE_TEXTURE_1D_ARRAY
)
195 assert(texture
->target
== PIPE_TEXTURE_1D
);
196 else if (view
->target
== PIPE_TEXTURE_2D
)
197 assert(texture
->target
== PIPE_TEXTURE_2D_ARRAY
||
198 texture
->target
== PIPE_TEXTURE_CUBE
||
199 texture
->target
== PIPE_TEXTURE_CUBE_ARRAY
);
200 else if (view
->target
== PIPE_TEXTURE_2D_ARRAY
)
201 assert(texture
->target
== PIPE_TEXTURE_2D
||
202 texture
->target
== PIPE_TEXTURE_CUBE
||
203 texture
->target
== PIPE_TEXTURE_CUBE_ARRAY
);
204 else if (view
->target
== PIPE_TEXTURE_CUBE
)
205 assert(texture
->target
== PIPE_TEXTURE_CUBE_ARRAY
||
206 texture
->target
== PIPE_TEXTURE_2D_ARRAY
);
207 else if (view
->target
== PIPE_TEXTURE_CUBE_ARRAY
)
208 assert(texture
->target
== PIPE_TEXTURE_CUBE
||
209 texture
->target
== PIPE_TEXTURE_2D_ARRAY
);
221 llvmpipe_sampler_view_destroy(struct pipe_context
*pipe
,
222 struct pipe_sampler_view
*view
)
224 pipe_resource_reference(&view
->texture
, NULL
);
230 llvmpipe_delete_sampler_state(struct pipe_context
*pipe
,
238 prepare_shader_sampling(
239 struct llvmpipe_context
*lp
,
241 struct pipe_sampler_view
**views
,
242 unsigned shader_type
)
246 uint32_t row_stride
[PIPE_MAX_TEXTURE_LEVELS
];
247 uint32_t img_stride
[PIPE_MAX_TEXTURE_LEVELS
];
248 uint32_t mip_offsets
[PIPE_MAX_TEXTURE_LEVELS
];
251 assert(num
<= PIPE_MAX_SHADER_SAMPLER_VIEWS
);
255 for (i
= 0; i
< num
; i
++) {
256 struct pipe_sampler_view
*view
= i
< num
? views
[i
] : NULL
;
259 struct pipe_resource
*tex
= view
->texture
;
260 struct llvmpipe_resource
*lp_tex
= llvmpipe_resource(tex
);
261 unsigned width0
= tex
->width0
;
262 unsigned num_layers
= tex
->depth0
;
263 unsigned first_level
= 0;
264 unsigned last_level
= 0;
267 /* regular texture - setup array of mipmap level offsets */
268 struct pipe_resource
*res
= view
->texture
;
271 if (llvmpipe_resource_is_texture(res
)) {
272 first_level
= view
->u
.tex
.first_level
;
273 last_level
= view
->u
.tex
.last_level
;
274 assert(first_level
<= last_level
);
275 assert(last_level
<= res
->last_level
);
276 addr
= lp_tex
->tex_data
;
278 for (j
= first_level
; j
<= last_level
; j
++) {
279 mip_offsets
[j
] = lp_tex
->mip_offsets
[j
];
280 row_stride
[j
] = lp_tex
->row_stride
[j
];
281 img_stride
[j
] = lp_tex
->img_stride
[j
];
283 if (tex
->target
== PIPE_TEXTURE_1D_ARRAY
||
284 tex
->target
== PIPE_TEXTURE_2D_ARRAY
||
285 tex
->target
== PIPE_TEXTURE_CUBE
||
286 tex
->target
== PIPE_TEXTURE_CUBE_ARRAY
) {
287 num_layers
= view
->u
.tex
.last_layer
- view
->u
.tex
.first_layer
+ 1;
288 for (j
= first_level
; j
<= last_level
; j
++) {
289 mip_offsets
[j
] += view
->u
.tex
.first_layer
*
290 lp_tex
->img_stride
[j
];
292 if (view
->target
== PIPE_TEXTURE_CUBE
||
293 view
->target
== PIPE_TEXTURE_CUBE_ARRAY
) {
294 assert(num_layers
% 6 == 0);
296 assert(view
->u
.tex
.first_layer
<= view
->u
.tex
.last_layer
);
297 assert(view
->u
.tex
.last_layer
< res
->array_size
);
301 unsigned view_blocksize
= util_format_get_blocksize(view
->format
);
303 /* probably don't really need to fill that out */
308 /* everything specified in number of elements here. */
309 width0
= view
->u
.buf
.last_element
- view
->u
.buf
.first_element
+ 1;
310 addr
= (uint8_t *)addr
+ view
->u
.buf
.first_element
*
312 assert(view
->u
.buf
.first_element
<= view
->u
.buf
.last_element
);
313 assert(view
->u
.buf
.last_element
* view_blocksize
< res
->width0
);
317 /* display target texture/surface */
319 * XXX: Where should this be unmapped?
321 struct llvmpipe_screen
*screen
= llvmpipe_screen(tex
->screen
);
322 struct sw_winsys
*winsys
= screen
->winsys
;
323 addr
= winsys
->displaytarget_map(winsys
, lp_tex
->dt
,
325 row_stride
[0] = lp_tex
->row_stride
[0];
326 img_stride
[0] = lp_tex
->img_stride
[0];
330 draw_set_mapped_texture(lp
->draw
,
333 width0
, tex
->height0
, num_layers
,
334 first_level
, last_level
,
336 row_stride
, img_stride
, mip_offsets
);
343 * Called whenever we're about to draw (no dirty flag, FIXME?).
346 llvmpipe_prepare_vertex_sampling(struct llvmpipe_context
*lp
,
348 struct pipe_sampler_view
**views
)
350 prepare_shader_sampling(lp
, num
, views
, PIPE_SHADER_VERTEX
);
355 * Called whenever we're about to draw (no dirty flag, FIXME?).
358 llvmpipe_prepare_geometry_sampling(struct llvmpipe_context
*lp
,
360 struct pipe_sampler_view
**views
)
362 prepare_shader_sampling(lp
, num
, views
, PIPE_SHADER_GEOMETRY
);
367 llvmpipe_init_sampler_funcs(struct llvmpipe_context
*llvmpipe
)
369 llvmpipe
->pipe
.create_sampler_state
= llvmpipe_create_sampler_state
;
371 llvmpipe
->pipe
.bind_sampler_states
= llvmpipe_bind_sampler_states
;
372 llvmpipe
->pipe
.create_sampler_view
= llvmpipe_create_sampler_view
;
373 llvmpipe
->pipe
.set_sampler_views
= llvmpipe_set_sampler_views
;
374 llvmpipe
->pipe
.sampler_view_destroy
= llvmpipe_sampler_view_destroy
;
375 llvmpipe
->pipe
.delete_sampler_state
= llvmpipe_delete_sampler_state
;