1 /**************************************************************************
2 *
3 * Copyright 2007 VMware, Inc.
4 * All Rights Reserved.
5 *
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:
13 *
14 * The above copyright notice and this permission notice (including the
15 * next paragraph) shall be included in all copies or substantial portions
16 * of the Software.
17 *
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.
25 *
26 **************************************************************************/
27
28 /* Authors:
29 * Brian Paul
30 */
31
32 #include "util/u_inlines.h"
33 #include "util/u_memory.h"
34
35 #include "draw/draw_context.h"
36
37 #include "lp_context.h"
38 #include "lp_screen.h"
39 #include "lp_state.h"
40 #include "lp_debug.h"
41 #include "frontend/sw_winsys.h"
42 #include "lp_flush.h"
43
44
45 static void *
llvmpipe_create_sampler_state(struct pipe_context * pipe,const struct pipe_sampler_state * sampler)46 llvmpipe_create_sampler_state(struct pipe_context *pipe,
47 const struct pipe_sampler_state *sampler)
48 {
49 struct pipe_sampler_state *state = mem_dup(sampler, sizeof *sampler);
50
51 if (LP_PERF & PERF_NO_MIP_LINEAR) {
52 if (state->min_mip_filter == PIPE_TEX_MIPFILTER_LINEAR)
53 state->min_mip_filter = PIPE_TEX_MIPFILTER_NEAREST;
54 }
55
56 if (LP_PERF & PERF_NO_MIPMAPS)
57 state->min_mip_filter = PIPE_TEX_MIPFILTER_NONE;
58
59 if (LP_PERF & PERF_NO_LINEAR) {
60 state->mag_img_filter = PIPE_TEX_FILTER_NEAREST;
61 state->min_img_filter = PIPE_TEX_FILTER_NEAREST;
62 }
63
64 return state;
65 }
66
67
68 static void
llvmpipe_bind_sampler_states(struct pipe_context * pipe,enum pipe_shader_type shader,unsigned start,unsigned num,void ** samplers)69 llvmpipe_bind_sampler_states(struct pipe_context *pipe,
70 enum pipe_shader_type shader,
71 unsigned start,
72 unsigned num,
73 void **samplers)
74 {
75 struct llvmpipe_context *llvmpipe = llvmpipe_context(pipe);
76 unsigned i;
77
78 assert(shader < PIPE_SHADER_TYPES);
79 assert(start + num <= ARRAY_SIZE(llvmpipe->samplers[shader]));
80
81 draw_flush(llvmpipe->draw);
82
83 /* set the new samplers */
84 for (i = 0; i < num; i++) {
85 void *sampler = NULL;
86
87 if (samplers && samplers[i])
88 sampler = samplers[i];
89 llvmpipe->samplers[shader][start + i] = sampler;
90 }
91
92 /* find highest non-null samplers[] entry */
93 {
94 unsigned j = MAX2(llvmpipe->num_samplers[shader], start + num);
95 while (j > 0 && llvmpipe->samplers[shader][j - 1] == NULL)
96 j--;
97 llvmpipe->num_samplers[shader] = j;
98 }
99
100 if (shader == PIPE_SHADER_VERTEX ||
101 shader == PIPE_SHADER_GEOMETRY ||
102 shader == PIPE_SHADER_TESS_CTRL ||
103 shader == PIPE_SHADER_TESS_EVAL) {
104 draw_set_samplers(llvmpipe->draw,
105 shader,
106 llvmpipe->samplers[shader],
107 llvmpipe->num_samplers[shader]);
108 }
109 else if (shader == PIPE_SHADER_COMPUTE) {
110 llvmpipe->cs_dirty |= LP_CSNEW_SAMPLER;
111 } else {
112 llvmpipe->dirty |= LP_NEW_SAMPLER;
113 }
114 }
115
116
117 static void
llvmpipe_set_sampler_views(struct pipe_context * pipe,enum pipe_shader_type shader,unsigned start,unsigned num,struct pipe_sampler_view ** views)118 llvmpipe_set_sampler_views(struct pipe_context *pipe,
119 enum pipe_shader_type shader,
120 unsigned start,
121 unsigned num,
122 struct pipe_sampler_view **views)
123 {
124 struct llvmpipe_context *llvmpipe = llvmpipe_context(pipe);
125 uint i;
126
127 assert(num <= PIPE_MAX_SHADER_SAMPLER_VIEWS);
128
129 assert(shader < PIPE_SHADER_TYPES);
130 assert(start + num <= ARRAY_SIZE(llvmpipe->sampler_views[shader]));
131
132 draw_flush(llvmpipe->draw);
133
134 /* set the new sampler views */
135 for (i = 0; i < num; i++) {
136 struct pipe_sampler_view *view = NULL;
137
138 if (views && views[i])
139 view = views[i];
140 /*
141 * Warn if someone tries to set a view created in a different context
142 * (which is why we need the hack above in the first place).
143 * An assert would be better but st/mesa relies on it...
144 */
145 if (view && view->context != pipe) {
146 debug_printf("Illegal setting of sampler_view %d created in another "
147 "context\n", i);
148 }
149
150 if (view)
151 llvmpipe_flush_resource(pipe, view->texture, 0, true, false, false, "sampler_view");
152 pipe_sampler_view_reference(&llvmpipe->sampler_views[shader][start + i],
153 view);
154 }
155
156 /* find highest non-null sampler_views[] entry */
157 {
158 unsigned j = MAX2(llvmpipe->num_sampler_views[shader], start + num);
159 while (j > 0 && llvmpipe->sampler_views[shader][j - 1] == NULL)
160 j--;
161 llvmpipe->num_sampler_views[shader] = j;
162 }
163
164 if (shader == PIPE_SHADER_VERTEX ||
165 shader == PIPE_SHADER_GEOMETRY ||
166 shader == PIPE_SHADER_TESS_CTRL ||
167 shader == PIPE_SHADER_TESS_EVAL) {
168 draw_set_sampler_views(llvmpipe->draw,
169 shader,
170 llvmpipe->sampler_views[shader],
171 llvmpipe->num_sampler_views[shader]);
172 }
173 else if (shader == PIPE_SHADER_COMPUTE) {
174 llvmpipe->cs_dirty |= LP_CSNEW_SAMPLER_VIEW;
175 } else {
176 llvmpipe->dirty |= LP_NEW_SAMPLER_VIEW;
177 }
178 }
179
180
181 static struct pipe_sampler_view *
llvmpipe_create_sampler_view(struct pipe_context * pipe,struct pipe_resource * texture,const struct pipe_sampler_view * templ)182 llvmpipe_create_sampler_view(struct pipe_context *pipe,
183 struct pipe_resource *texture,
184 const struct pipe_sampler_view *templ)
185 {
186 struct pipe_sampler_view *view = CALLOC_STRUCT(pipe_sampler_view);
187 /*
188 * XXX: bind flags from OpenGL state tracker are notoriously unreliable.
189 * This looks unfixable, so fix the bind flags instead when it happens.
190 */
191 if (!(texture->bind & PIPE_BIND_SAMPLER_VIEW)) {
192 debug_printf("Illegal sampler view creation without bind flag\n");
193 texture->bind |= PIPE_BIND_SAMPLER_VIEW;
194 }
195
196 if (view) {
197 *view = *templ;
198 view->reference.count = 1;
199 view->texture = NULL;
200 pipe_resource_reference(&view->texture, texture);
201 view->context = pipe;
202
203 #ifdef DEBUG
204 /*
205 * This is possibly too lenient, but the primary reason is just
206 * to catch gallium frontends which forget to initialize this, so
207 * it only catches clearly impossible view targets.
208 */
209 if (view->target != texture->target) {
210 if (view->target == PIPE_TEXTURE_1D)
211 assert(texture->target == PIPE_TEXTURE_1D_ARRAY);
212 else if (view->target == PIPE_TEXTURE_1D_ARRAY)
213 assert(texture->target == PIPE_TEXTURE_1D);
214 else if (view->target == PIPE_TEXTURE_2D)
215 assert(texture->target == PIPE_TEXTURE_2D_ARRAY ||
216 texture->target == PIPE_TEXTURE_CUBE ||
217 texture->target == PIPE_TEXTURE_CUBE_ARRAY);
218 else if (view->target == PIPE_TEXTURE_2D_ARRAY)
219 assert(texture->target == PIPE_TEXTURE_2D ||
220 texture->target == PIPE_TEXTURE_CUBE ||
221 texture->target == PIPE_TEXTURE_CUBE_ARRAY);
222 else if (view->target == PIPE_TEXTURE_CUBE)
223 assert(texture->target == PIPE_TEXTURE_CUBE_ARRAY ||
224 texture->target == PIPE_TEXTURE_2D_ARRAY);
225 else if (view->target == PIPE_TEXTURE_CUBE_ARRAY)
226 assert(texture->target == PIPE_TEXTURE_CUBE ||
227 texture->target == PIPE_TEXTURE_2D_ARRAY);
228 else
229 assert(0);
230 }
231 #endif
232 }
233
234 return view;
235 }
236
237
238 static void
llvmpipe_sampler_view_destroy(struct pipe_context * pipe,struct pipe_sampler_view * view)239 llvmpipe_sampler_view_destroy(struct pipe_context *pipe,
240 struct pipe_sampler_view *view)
241 {
242 pipe_resource_reference(&view->texture, NULL);
243 FREE(view);
244 }
245
246
247 static void
llvmpipe_delete_sampler_state(struct pipe_context * pipe,void * sampler)248 llvmpipe_delete_sampler_state(struct pipe_context *pipe,
249 void *sampler)
250 {
251 FREE( sampler );
252 }
253
254
255 static void
prepare_shader_sampling(struct llvmpipe_context * lp,unsigned num,struct pipe_sampler_view ** views,enum pipe_shader_type shader_type)256 prepare_shader_sampling(
257 struct llvmpipe_context *lp,
258 unsigned num,
259 struct pipe_sampler_view **views,
260 enum pipe_shader_type shader_type)
261 {
262
263 unsigned i;
264 uint32_t row_stride[PIPE_MAX_TEXTURE_LEVELS];
265 uint32_t img_stride[PIPE_MAX_TEXTURE_LEVELS];
266 uint32_t mip_offsets[PIPE_MAX_TEXTURE_LEVELS];
267 const void *addr;
268
269 assert(num <= PIPE_MAX_SHADER_SAMPLER_VIEWS);
270 if (!num)
271 return;
272
273 for (i = 0; i < num; i++) {
274 struct pipe_sampler_view *view = i < num ? views[i] : NULL;
275
276 if (view) {
277 struct pipe_resource *tex = view->texture;
278 struct llvmpipe_resource *lp_tex = llvmpipe_resource(tex);
279 unsigned width0 = tex->width0;
280 unsigned num_layers = tex->depth0;
281 unsigned first_level = 0;
282 unsigned last_level = 0;
283 unsigned sample_stride = 0;
284 unsigned num_samples = tex->nr_samples;
285
286 if (!lp_tex->dt) {
287 /* regular texture - setup array of mipmap level offsets */
288 struct pipe_resource *res = view->texture;
289 int j;
290
291 if (llvmpipe_resource_is_texture(res)) {
292 first_level = view->u.tex.first_level;
293 last_level = view->u.tex.last_level;
294 assert(first_level <= last_level);
295 assert(last_level <= res->last_level);
296 addr = lp_tex->tex_data;
297
298 sample_stride = lp_tex->sample_stride;
299
300 for (j = first_level; j <= last_level; j++) {
301 mip_offsets[j] = lp_tex->mip_offsets[j];
302 row_stride[j] = lp_tex->row_stride[j];
303 img_stride[j] = lp_tex->img_stride[j];
304 }
305 if (tex->target == PIPE_TEXTURE_1D_ARRAY ||
306 tex->target == PIPE_TEXTURE_2D_ARRAY ||
307 tex->target == PIPE_TEXTURE_CUBE ||
308 tex->target == PIPE_TEXTURE_CUBE_ARRAY) {
309 num_layers = view->u.tex.last_layer - view->u.tex.first_layer + 1;
310 for (j = first_level; j <= last_level; j++) {
311 mip_offsets[j] += view->u.tex.first_layer *
312 lp_tex->img_stride[j];
313 }
314 if (view->target == PIPE_TEXTURE_CUBE ||
315 view->target == PIPE_TEXTURE_CUBE_ARRAY) {
316 assert(num_layers % 6 == 0);
317 }
318 assert(view->u.tex.first_layer <= view->u.tex.last_layer);
319 assert(view->u.tex.last_layer < res->array_size);
320 }
321 }
322 else {
323 unsigned view_blocksize = util_format_get_blocksize(view->format);
324 addr = lp_tex->data;
325 /* probably don't really need to fill that out */
326 mip_offsets[0] = 0;
327 row_stride[0] = 0;
328 img_stride[0] = 0;
329
330 /* everything specified in number of elements here. */
331 width0 = view->u.buf.size / view_blocksize;
332 addr = (uint8_t *)addr + view->u.buf.offset;
333 assert(view->u.buf.offset + view->u.buf.size <= res->width0);
334 }
335 }
336 else {
337 /* display target texture/surface */
338 /*
339 * XXX: Where should this be unmapped?
340 */
341 struct llvmpipe_screen *screen = llvmpipe_screen(tex->screen);
342 struct sw_winsys *winsys = screen->winsys;
343 addr = winsys->displaytarget_map(winsys, lp_tex->dt,
344 PIPE_MAP_READ);
345 row_stride[0] = lp_tex->row_stride[0];
346 img_stride[0] = lp_tex->img_stride[0];
347 mip_offsets[0] = 0;
348 assert(addr);
349 }
350 draw_set_mapped_texture(lp->draw,
351 shader_type,
352 i,
353 width0, tex->height0, num_layers,
354 first_level, last_level,
355 num_samples, sample_stride,
356 addr,
357 row_stride, img_stride, mip_offsets);
358 }
359 }
360 }
361
362
363 /**
364 * Called whenever we're about to draw (no dirty flag, FIXME?).
365 */
366 void
llvmpipe_prepare_vertex_sampling(struct llvmpipe_context * lp,unsigned num,struct pipe_sampler_view ** views)367 llvmpipe_prepare_vertex_sampling(struct llvmpipe_context *lp,
368 unsigned num,
369 struct pipe_sampler_view **views)
370 {
371 prepare_shader_sampling(lp, num, views, PIPE_SHADER_VERTEX);
372 }
373
374
375 /**
376 * Called whenever we're about to draw (no dirty flag, FIXME?).
377 */
378 void
llvmpipe_prepare_geometry_sampling(struct llvmpipe_context * lp,unsigned num,struct pipe_sampler_view ** views)379 llvmpipe_prepare_geometry_sampling(struct llvmpipe_context *lp,
380 unsigned num,
381 struct pipe_sampler_view **views)
382 {
383 prepare_shader_sampling(lp, num, views, PIPE_SHADER_GEOMETRY);
384 }
385
386 /**
387 * Called whenever we're about to draw (no dirty flag, FIXME?).
388 */
389 void
llvmpipe_prepare_tess_ctrl_sampling(struct llvmpipe_context * lp,unsigned num,struct pipe_sampler_view ** views)390 llvmpipe_prepare_tess_ctrl_sampling(struct llvmpipe_context *lp,
391 unsigned num,
392 struct pipe_sampler_view **views)
393 {
394 prepare_shader_sampling(lp, num, views, PIPE_SHADER_TESS_CTRL);
395 }
396
397 /**
398 * Called whenever we're about to draw (no dirty flag, FIXME?).
399 */
400 void
llvmpipe_prepare_tess_eval_sampling(struct llvmpipe_context * lp,unsigned num,struct pipe_sampler_view ** views)401 llvmpipe_prepare_tess_eval_sampling(struct llvmpipe_context *lp,
402 unsigned num,
403 struct pipe_sampler_view **views)
404 {
405 prepare_shader_sampling(lp, num, views, PIPE_SHADER_TESS_EVAL);
406 }
407
408 static void
prepare_shader_images(struct llvmpipe_context * lp,unsigned num,struct pipe_image_view * views,enum pipe_shader_type shader_type)409 prepare_shader_images(
410 struct llvmpipe_context *lp,
411 unsigned num,
412 struct pipe_image_view *views,
413 enum pipe_shader_type shader_type)
414 {
415
416 unsigned i;
417 uint32_t row_stride;
418 uint32_t img_stride;
419 uint32_t sample_stride;
420 const void *addr;
421
422 assert(num <= PIPE_MAX_SHADER_SAMPLER_VIEWS);
423 if (!num)
424 return;
425
426 for (i = 0; i < num; i++) {
427 struct pipe_image_view *view = i < num ? &views[i] : NULL;
428
429 if (view) {
430 struct pipe_resource *img = view->resource;
431 struct llvmpipe_resource *lp_img = llvmpipe_resource(img);
432 if (!img)
433 continue;
434
435 unsigned width = u_minify(img->width0, view->u.tex.level);
436 unsigned height = u_minify(img->height0, view->u.tex.level);
437 unsigned num_layers = img->depth0;
438 unsigned num_samples = img->nr_samples;
439
440 if (!lp_img->dt) {
441 /* regular texture - setup array of mipmap level offsets */
442 struct pipe_resource *res = view->resource;
443
444 if (llvmpipe_resource_is_texture(res)) {
445 uint32_t mip_offset = lp_img->mip_offsets[view->u.tex.level];
446 addr = lp_img->tex_data;
447
448 if (img->target == PIPE_TEXTURE_1D_ARRAY ||
449 img->target == PIPE_TEXTURE_2D_ARRAY ||
450 img->target == PIPE_TEXTURE_3D ||
451 img->target == PIPE_TEXTURE_CUBE ||
452 img->target == PIPE_TEXTURE_CUBE_ARRAY) {
453 num_layers = view->u.tex.last_layer - view->u.tex.first_layer + 1;
454 assert(view->u.tex.first_layer <= view->u.tex.last_layer);
455 mip_offset += view->u.tex.first_layer * lp_img->img_stride[view->u.tex.level];
456 }
457
458 row_stride = lp_img->row_stride[view->u.tex.level];
459 img_stride = lp_img->img_stride[view->u.tex.level];
460 sample_stride = lp_img->sample_stride;
461 addr = (uint8_t *)addr + mip_offset;
462 }
463 else {
464 unsigned view_blocksize = util_format_get_blocksize(view->format);
465 addr = lp_img->data;
466 /* probably don't really need to fill that out */
467 row_stride = 0;
468 img_stride = 0;
469 sample_stride = 0;
470
471 /* everything specified in number of elements here. */
472 width = view->u.buf.size / view_blocksize;
473 addr = (uint8_t *)addr + view->u.buf.offset;
474 assert(view->u.buf.offset + view->u.buf.size <= res->width0);
475 }
476 }
477 else {
478 /* display target texture/surface */
479 /*
480 * XXX: Where should this be unmapped?
481 */
482 struct llvmpipe_screen *screen = llvmpipe_screen(img->screen);
483 struct sw_winsys *winsys = screen->winsys;
484 addr = winsys->displaytarget_map(winsys, lp_img->dt,
485 PIPE_MAP_READ);
486 row_stride = lp_img->row_stride[0];
487 img_stride = lp_img->img_stride[0];
488 sample_stride = 0;
489 assert(addr);
490 }
491 draw_set_mapped_image(lp->draw,
492 shader_type,
493 i,
494 width, height, num_layers,
495 addr,
496 row_stride, img_stride,
497 num_samples, sample_stride);
498 }
499 }
500 }
501
502
503 /**
504 * Called whenever we're about to draw (no dirty flag, FIXME?).
505 */
506 void
llvmpipe_prepare_vertex_images(struct llvmpipe_context * lp,unsigned num,struct pipe_image_view * views)507 llvmpipe_prepare_vertex_images(struct llvmpipe_context *lp,
508 unsigned num,
509 struct pipe_image_view *views)
510 {
511 prepare_shader_images(lp, num, views, PIPE_SHADER_VERTEX);
512 }
513
514
515 /**
516 * Called whenever we're about to draw (no dirty flag, FIXME?).
517 */
518 void
llvmpipe_prepare_geometry_images(struct llvmpipe_context * lp,unsigned num,struct pipe_image_view * views)519 llvmpipe_prepare_geometry_images(struct llvmpipe_context *lp,
520 unsigned num,
521 struct pipe_image_view *views)
522 {
523 prepare_shader_images(lp, num, views, PIPE_SHADER_GEOMETRY);
524 }
525
526 /**
527 * Called whenever we're about to draw (no dirty flag, FIXME?).
528 */
529 void
llvmpipe_prepare_tess_ctrl_images(struct llvmpipe_context * lp,unsigned num,struct pipe_image_view * views)530 llvmpipe_prepare_tess_ctrl_images(struct llvmpipe_context *lp,
531 unsigned num,
532 struct pipe_image_view *views)
533 {
534 prepare_shader_images(lp, num, views, PIPE_SHADER_TESS_CTRL);
535 }
536
537 /**
538 * Called whenever we're about to draw (no dirty flag, FIXME?).
539 */
540 void
llvmpipe_prepare_tess_eval_images(struct llvmpipe_context * lp,unsigned num,struct pipe_image_view * views)541 llvmpipe_prepare_tess_eval_images(struct llvmpipe_context *lp,
542 unsigned num,
543 struct pipe_image_view *views)
544 {
545 prepare_shader_images(lp, num, views, PIPE_SHADER_TESS_EVAL);
546 }
547
548 void
llvmpipe_init_sampler_funcs(struct llvmpipe_context * llvmpipe)549 llvmpipe_init_sampler_funcs(struct llvmpipe_context *llvmpipe)
550 {
551 llvmpipe->pipe.create_sampler_state = llvmpipe_create_sampler_state;
552
553 llvmpipe->pipe.bind_sampler_states = llvmpipe_bind_sampler_states;
554 llvmpipe->pipe.create_sampler_view = llvmpipe_create_sampler_view;
555 llvmpipe->pipe.set_sampler_views = llvmpipe_set_sampler_views;
556 llvmpipe->pipe.sampler_view_destroy = llvmpipe_sampler_view_destroy;
557 llvmpipe->pipe.delete_sampler_state = llvmpipe_delete_sampler_state;
558 }
559