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[mesa.git] / src / gallium / drivers / r600 / r600_blit.c
1 /*
2 * Copyright 2010 Jerome Glisse <glisse@freedesktop.org>
3 *
4 * Permission is hereby granted, free of charge, to any person obtaining a
5 * copy of this software and associated documentation files (the "Software"),
6 * to deal in the Software without restriction, including without limitation
7 * on the rights to use, copy, modify, merge, publish, distribute, sub
8 * license, and/or sell copies of the Software, and to permit persons to whom
9 * the Software is furnished to do so, subject to the following conditions:
10 *
11 * The above copyright notice and this permission notice (including the next
12 * paragraph) shall be included in all copies or substantial portions of the
13 * Software.
14 *
15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
16 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
17 * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
18 * THE AUTHOR(S) AND/OR THEIR SUPPLIERS BE LIABLE FOR ANY CLAIM,
19 * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
20 * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
21 * USE OR OTHER DEALINGS IN THE SOFTWARE.
22 */
23 #include "r600_pipe.h"
24 #include "util/u_surface.h"
25 #include "util/u_blitter.h"
26 #include "util/u_format.h"
27
28 enum r600_blitter_op /* bitmask */
29 {
30 R600_SAVE_FRAGMENT_STATE = 1,
31 R600_SAVE_TEXTURES = 2,
32 R600_SAVE_FRAMEBUFFER = 4,
33 R600_DISABLE_RENDER_COND = 8,
34
35 R600_CLEAR = R600_SAVE_FRAGMENT_STATE,
36
37 R600_CLEAR_SURFACE = R600_SAVE_FRAGMENT_STATE | R600_SAVE_FRAMEBUFFER,
38
39 R600_COPY_BUFFER = R600_DISABLE_RENDER_COND,
40
41 R600_COPY_TEXTURE = R600_SAVE_FRAGMENT_STATE | R600_SAVE_FRAMEBUFFER | R600_SAVE_TEXTURES |
42 R600_DISABLE_RENDER_COND,
43
44 R600_BLIT = R600_SAVE_FRAGMENT_STATE | R600_SAVE_FRAMEBUFFER | R600_SAVE_TEXTURES |
45 R600_DISABLE_RENDER_COND,
46
47 R600_DECOMPRESS = R600_SAVE_FRAGMENT_STATE | R600_SAVE_FRAMEBUFFER | R600_DISABLE_RENDER_COND,
48
49 R600_COLOR_RESOLVE = R600_SAVE_FRAGMENT_STATE | R600_SAVE_FRAMEBUFFER | R600_DISABLE_RENDER_COND
50 };
51
52 static void r600_blitter_begin(struct pipe_context *ctx, enum r600_blitter_op op)
53 {
54 struct r600_context *rctx = (struct r600_context *)ctx;
55
56 r600_suspend_nontimer_queries(rctx);
57
58 util_blitter_save_vertex_buffer_slot(rctx->blitter, rctx->vertex_buffer_state.vb);
59 util_blitter_save_vertex_elements(rctx->blitter, rctx->vertex_fetch_shader.cso);
60 util_blitter_save_vertex_shader(rctx->blitter, rctx->vs_shader);
61 util_blitter_save_so_targets(rctx->blitter, rctx->streamout.num_targets,
62 (struct pipe_stream_output_target**)rctx->streamout.targets);
63 util_blitter_save_rasterizer(rctx->blitter, rctx->rasterizer_state.cso);
64
65 if (op & R600_SAVE_FRAGMENT_STATE) {
66 util_blitter_save_viewport(rctx->blitter, &rctx->viewport.state);
67 util_blitter_save_scissor(rctx->blitter, &rctx->scissor.scissor);
68 util_blitter_save_fragment_shader(rctx->blitter, rctx->ps_shader);
69 util_blitter_save_blend(rctx->blitter, rctx->blend_state.cso);
70 util_blitter_save_depth_stencil_alpha(rctx->blitter, rctx->dsa_state.cso);
71 util_blitter_save_stencil_ref(rctx->blitter, &rctx->stencil_ref.pipe_state);
72 util_blitter_save_sample_mask(rctx->blitter, rctx->sample_mask.sample_mask);
73 }
74
75 if (op & R600_SAVE_FRAMEBUFFER)
76 util_blitter_save_framebuffer(rctx->blitter, &rctx->framebuffer.state);
77
78 if (op & R600_SAVE_TEXTURES) {
79 util_blitter_save_fragment_sampler_states(
80 rctx->blitter, util_last_bit(rctx->samplers[PIPE_SHADER_FRAGMENT].states.enabled_mask),
81 (void**)rctx->samplers[PIPE_SHADER_FRAGMENT].states.states);
82
83 util_blitter_save_fragment_sampler_views(
84 rctx->blitter, util_last_bit(rctx->samplers[PIPE_SHADER_FRAGMENT].views.enabled_mask),
85 (struct pipe_sampler_view**)rctx->samplers[PIPE_SHADER_FRAGMENT].views.views);
86 }
87
88 if ((op & R600_DISABLE_RENDER_COND) && rctx->current_render_cond) {
89 util_blitter_save_render_condition(rctx->blitter,
90 rctx->current_render_cond,
91 rctx->current_render_cond_mode);
92 }
93 }
94
95 static void r600_blitter_end(struct pipe_context *ctx)
96 {
97 struct r600_context *rctx = (struct r600_context *)ctx;
98 r600_resume_nontimer_queries(rctx);
99 }
100
101 static unsigned u_max_sample(struct pipe_resource *r)
102 {
103 return r->nr_samples ? r->nr_samples - 1 : 0;
104 }
105
106 void r600_blit_decompress_depth(struct pipe_context *ctx,
107 struct r600_texture *texture,
108 struct r600_texture *staging,
109 unsigned first_level, unsigned last_level,
110 unsigned first_layer, unsigned last_layer,
111 unsigned first_sample, unsigned last_sample)
112 {
113 struct r600_context *rctx = (struct r600_context *)ctx;
114 unsigned layer, level, sample, checked_last_layer, max_layer, max_sample;
115 struct r600_texture *flushed_depth_texture = staging ?
116 staging : texture->flushed_depth_texture;
117 const struct util_format_description *desc =
118 util_format_description(texture->resource.b.b.format);
119 float depth;
120
121 if (!staging && !texture->dirty_level_mask)
122 return;
123
124 max_sample = u_max_sample(&texture->resource.b.b);
125
126 /* XXX Decompressing MSAA depth textures is broken on R6xx.
127 * There is also a hardlock if CMASK and FMASK are not present.
128 * Just skip this until we find out how to fix it. */
129 if (rctx->chip_class == R600 && max_sample > 0) {
130 texture->dirty_level_mask = 0;
131 return;
132 }
133
134 if (rctx->family == CHIP_RV610 || rctx->family == CHIP_RV630 ||
135 rctx->family == CHIP_RV620 || rctx->family == CHIP_RV635)
136 depth = 0.0f;
137 else
138 depth = 1.0f;
139
140 /* Enable decompression in DB_RENDER_CONTROL */
141 rctx->db_misc_state.flush_depthstencil_through_cb = true;
142 rctx->db_misc_state.copy_depth = util_format_has_depth(desc);
143 rctx->db_misc_state.copy_stencil = util_format_has_stencil(desc);
144 rctx->db_misc_state.copy_sample = first_sample;
145 rctx->db_misc_state.atom.dirty = true;
146
147 for (level = first_level; level <= last_level; level++) {
148 if (!staging && !(texture->dirty_level_mask & (1 << level)))
149 continue;
150
151 /* The smaller the mipmap level, the less layers there are
152 * as far as 3D textures are concerned. */
153 max_layer = util_max_layer(&texture->resource.b.b, level);
154 checked_last_layer = last_layer < max_layer ? last_layer : max_layer;
155
156 for (layer = first_layer; layer <= checked_last_layer; layer++) {
157 for (sample = first_sample; sample <= last_sample; sample++) {
158 struct pipe_surface *zsurf, *cbsurf, surf_tmpl;
159
160 if (sample != rctx->db_misc_state.copy_sample) {
161 rctx->db_misc_state.copy_sample = sample;
162 rctx->db_misc_state.atom.dirty = true;
163 }
164
165 surf_tmpl.format = texture->resource.b.b.format;
166 surf_tmpl.u.tex.level = level;
167 surf_tmpl.u.tex.first_layer = layer;
168 surf_tmpl.u.tex.last_layer = layer;
169
170 zsurf = ctx->create_surface(ctx, &texture->resource.b.b, &surf_tmpl);
171
172 surf_tmpl.format = flushed_depth_texture->resource.b.b.format;
173 surf_tmpl.u.tex.level = level;
174 surf_tmpl.u.tex.first_layer = layer;
175 surf_tmpl.u.tex.last_layer = layer;
176 cbsurf = ctx->create_surface(ctx,
177 &flushed_depth_texture->resource.b.b, &surf_tmpl);
178
179 r600_blitter_begin(ctx, R600_DECOMPRESS);
180 util_blitter_custom_depth_stencil(rctx->blitter, zsurf, cbsurf, 1 << sample,
181 rctx->custom_dsa_flush, depth);
182 r600_blitter_end(ctx);
183
184 pipe_surface_reference(&zsurf, NULL);
185 pipe_surface_reference(&cbsurf, NULL);
186 }
187 }
188
189 /* The texture will always be dirty if some layers or samples aren't flushed.
190 * I don't think this case occurs often though. */
191 if (!staging &&
192 first_layer == 0 && last_layer == max_layer &&
193 first_sample == 0 && last_sample == max_sample) {
194 texture->dirty_level_mask &= ~(1 << level);
195 }
196 }
197
198 /* reenable compression in DB_RENDER_CONTROL */
199 rctx->db_misc_state.flush_depthstencil_through_cb = false;
200 rctx->db_misc_state.atom.dirty = true;
201 }
202
203 static void r600_blit_decompress_depth_in_place(struct r600_context *rctx,
204 struct r600_texture *texture,
205 unsigned first_level, unsigned last_level,
206 unsigned first_layer, unsigned last_layer)
207 {
208 struct pipe_surface *zsurf, surf_tmpl = {{0}};
209 unsigned layer, max_layer, checked_last_layer, level;
210
211 /* Enable decompression in DB_RENDER_CONTROL */
212 rctx->db_misc_state.flush_depthstencil_in_place = true;
213 rctx->db_misc_state.atom.dirty = true;
214
215 surf_tmpl.format = texture->resource.b.b.format;
216
217 for (level = first_level; level <= last_level; level++) {
218 if (!(texture->dirty_level_mask & (1 << level)))
219 continue;
220
221 surf_tmpl.u.tex.level = level;
222
223 /* The smaller the mipmap level, the less layers there are
224 * as far as 3D textures are concerned. */
225 max_layer = util_max_layer(&texture->resource.b.b, level);
226 checked_last_layer = last_layer < max_layer ? last_layer : max_layer;
227
228 for (layer = first_layer; layer <= checked_last_layer; layer++) {
229 surf_tmpl.u.tex.first_layer = layer;
230 surf_tmpl.u.tex.last_layer = layer;
231
232 zsurf = rctx->context.create_surface(&rctx->context, &texture->resource.b.b, &surf_tmpl);
233
234 r600_blitter_begin(&rctx->context, R600_DECOMPRESS);
235 util_blitter_custom_depth_stencil(rctx->blitter, zsurf, NULL, ~0,
236 rctx->custom_dsa_flush, 1.0f);
237 r600_blitter_end(&rctx->context);
238
239 pipe_surface_reference(&zsurf, NULL);
240 }
241
242 /* The texture will always be dirty if some layers or samples aren't flushed.
243 * I don't think this case occurs often though. */
244 if (first_layer == 0 && last_layer == max_layer) {
245 texture->dirty_level_mask &= ~(1 << level);
246 }
247 }
248
249 /* Disable decompression in DB_RENDER_CONTROL */
250 rctx->db_misc_state.flush_depthstencil_in_place = false;
251 rctx->db_misc_state.atom.dirty = true;
252 }
253
254 void r600_decompress_depth_textures(struct r600_context *rctx,
255 struct r600_samplerview_state *textures)
256 {
257 unsigned i;
258 unsigned depth_texture_mask = textures->compressed_depthtex_mask;
259
260 while (depth_texture_mask) {
261 struct pipe_sampler_view *view;
262 struct r600_texture *tex;
263
264 i = u_bit_scan(&depth_texture_mask);
265
266 view = &textures->views[i]->base;
267 assert(view);
268
269 tex = (struct r600_texture *)view->texture;
270 assert(tex->is_depth && !tex->is_flushing_texture);
271
272 if (rctx->chip_class >= EVERGREEN ||
273 r600_can_read_depth(tex)) {
274 r600_blit_decompress_depth_in_place(rctx, tex,
275 view->u.tex.first_level, view->u.tex.last_level,
276 0, util_max_layer(&tex->resource.b.b, view->u.tex.first_level));
277 } else {
278 r600_blit_decompress_depth(&rctx->context, tex, NULL,
279 view->u.tex.first_level, view->u.tex.last_level,
280 0, util_max_layer(&tex->resource.b.b, view->u.tex.first_level),
281 0, u_max_sample(&tex->resource.b.b));
282 }
283 }
284 }
285
286 static void r600_blit_decompress_color(struct pipe_context *ctx,
287 struct r600_texture *rtex,
288 unsigned first_level, unsigned last_level,
289 unsigned first_layer, unsigned last_layer)
290 {
291 struct r600_context *rctx = (struct r600_context *)ctx;
292 unsigned layer, level, checked_last_layer, max_layer;
293 void *blend_decompress;
294
295 if (!rtex->dirty_level_mask)
296 return;
297
298 switch (rctx->screen->msaa_texture_support) {
299 case MSAA_TEXTURE_DECOMPRESSED:
300 blend_decompress = rctx->custom_blend_decompress;
301 break;
302 case MSAA_TEXTURE_COMPRESSED:
303 blend_decompress = rctx->custom_blend_fmask_decompress;
304 break;
305 case MSAA_TEXTURE_SAMPLE_ZERO:
306 default:
307 /* Nothing to do. */
308 rtex->dirty_level_mask = 0;
309 return;
310 }
311
312 for (level = first_level; level <= last_level; level++) {
313 if (!(rtex->dirty_level_mask & (1 << level)))
314 continue;
315
316 /* The smaller the mipmap level, the less layers there are
317 * as far as 3D textures are concerned. */
318 max_layer = util_max_layer(&rtex->resource.b.b, level);
319 checked_last_layer = last_layer < max_layer ? last_layer : max_layer;
320
321 for (layer = first_layer; layer <= checked_last_layer; layer++) {
322 struct pipe_surface *cbsurf, surf_tmpl;
323
324 surf_tmpl.format = rtex->resource.b.b.format;
325 surf_tmpl.u.tex.level = level;
326 surf_tmpl.u.tex.first_layer = layer;
327 surf_tmpl.u.tex.last_layer = layer;
328 cbsurf = ctx->create_surface(ctx, &rtex->resource.b.b, &surf_tmpl);
329
330 r600_blitter_begin(ctx, R600_DECOMPRESS);
331 util_blitter_custom_color(rctx->blitter, cbsurf, blend_decompress);
332 r600_blitter_end(ctx);
333
334 pipe_surface_reference(&cbsurf, NULL);
335 }
336
337 /* The texture will always be dirty if some layers aren't flushed.
338 * I don't think this case occurs often though. */
339 if (first_layer == 0 && last_layer == max_layer) {
340 rtex->dirty_level_mask &= ~(1 << level);
341 }
342 }
343 }
344
345 void r600_decompress_color_textures(struct r600_context *rctx,
346 struct r600_samplerview_state *textures)
347 {
348 unsigned i;
349 unsigned mask = textures->compressed_colortex_mask;
350
351 while (mask) {
352 struct pipe_sampler_view *view;
353 struct r600_texture *tex;
354
355 i = u_bit_scan(&mask);
356
357 view = &textures->views[i]->base;
358 assert(view);
359
360 tex = (struct r600_texture *)view->texture;
361 assert(tex->cmask_size && tex->fmask_size);
362
363 r600_blit_decompress_color(&rctx->context, tex,
364 view->u.tex.first_level, view->u.tex.last_level,
365 0, util_max_layer(&tex->resource.b.b, view->u.tex.first_level));
366 }
367 }
368
369 /* Helper for decompressing a portion of a color or depth resource before
370 * blitting if any decompression is needed.
371 * The driver doesn't decompress resources automatically while u_blitter is
372 * rendering. */
373 static bool r600_decompress_subresource(struct pipe_context *ctx,
374 struct pipe_resource *tex,
375 unsigned level,
376 unsigned first_layer, unsigned last_layer)
377 {
378 struct r600_context *rctx = (struct r600_context *)ctx;
379 struct r600_texture *rtex = (struct r600_texture*)tex;
380
381 if (rtex->is_depth && !rtex->is_flushing_texture) {
382 if (rctx->chip_class >= EVERGREEN ||
383 r600_can_read_depth(rtex)) {
384 r600_blit_decompress_depth_in_place(rctx, rtex,
385 level, level,
386 first_layer, last_layer);
387 } else {
388 if (!r600_init_flushed_depth_texture(ctx, tex, NULL))
389 return false; /* error */
390
391 r600_blit_decompress_depth(ctx, rtex, NULL,
392 level, level,
393 first_layer, last_layer,
394 0, u_max_sample(tex));
395 }
396 } else if (rtex->fmask_size && rtex->cmask_size) {
397 r600_blit_decompress_color(ctx, rtex, level, level,
398 first_layer, last_layer);
399 }
400 return true;
401 }
402
403 static boolean is_simple_msaa_resolve(const struct pipe_blit_info *info)
404 {
405 unsigned dst_width = u_minify(info->dst.resource->width0, info->dst.level);
406 unsigned dst_height = u_minify(info->dst.resource->height0, info->dst.level);
407 struct r600_texture *dst = (struct r600_texture*)info->dst.resource;
408 unsigned dst_tile_mode = dst->surface.level[info->dst.level].mode;
409
410 return info->dst.resource->format == info->src.resource->format &&
411 info->dst.resource->format == info->dst.format &&
412 info->src.resource->format == info->src.format &&
413 !info->scissor_enable &&
414 info->mask == PIPE_MASK_RGBA &&
415 dst_width == info->src.resource->width0 &&
416 dst_height == info->src.resource->height0 &&
417 info->dst.box.x == 0 &&
418 info->dst.box.y == 0 &&
419 info->dst.box.width == dst_width &&
420 info->dst.box.height == dst_height &&
421 info->src.box.x == 0 &&
422 info->src.box.y == 0 &&
423 info->src.box.width == dst_width &&
424 info->src.box.height == dst_height &&
425 /* Dst must be tiled. If it's not, we have to use a temporary
426 * resource which is tiled. */
427 dst_tile_mode >= RADEON_SURF_MODE_1D;
428 }
429
430 static void r600_clear(struct pipe_context *ctx, unsigned buffers,
431 const union pipe_color_union *color,
432 double depth, unsigned stencil)
433 {
434 struct r600_context *rctx = (struct r600_context *)ctx;
435 struct pipe_framebuffer_state *fb = &rctx->framebuffer.state;
436
437 /* if hyperz enabled just clear hyperz */
438 if (fb->zsbuf && (buffers & PIPE_CLEAR_DEPTH)) {
439 struct r600_texture *rtex;
440 unsigned level = fb->zsbuf->u.tex.level;
441
442 rtex = (struct r600_texture*)fb->zsbuf->texture;
443
444 /* We can't use hyperz fast clear if each slice of a texture
445 * array are clear to different value. To simplify code just
446 * disable fast clear for texture array.
447 */
448 /* Only use htile for first level */
449 if (rtex->htile && !level && rtex->surface.array_size == 1) {
450 if (rtex->depth_clear != depth) {
451 rtex->depth_clear = depth;
452 rctx->db_state.atom.dirty = true;
453 }
454 rctx->db_misc_state.htile_clear = true;
455 rctx->db_misc_state.atom.dirty = true;
456 }
457 }
458
459 r600_blitter_begin(ctx, R600_CLEAR);
460 util_blitter_clear(rctx->blitter, fb->width, fb->height,
461 fb->nr_cbufs, buffers, fb->nr_cbufs ? fb->cbufs[0]->format : PIPE_FORMAT_NONE,
462 color, depth, stencil);
463 r600_blitter_end(ctx);
464
465 /* disable fast clear */
466 if (rctx->db_misc_state.htile_clear) {
467 rctx->db_misc_state.htile_clear = false;
468 rctx->db_misc_state.atom.dirty = true;
469 }
470 }
471
472 static void r600_clear_render_target(struct pipe_context *ctx,
473 struct pipe_surface *dst,
474 const union pipe_color_union *color,
475 unsigned dstx, unsigned dsty,
476 unsigned width, unsigned height)
477 {
478 struct r600_context *rctx = (struct r600_context *)ctx;
479
480 r600_blitter_begin(ctx, R600_CLEAR_SURFACE);
481 util_blitter_clear_render_target(rctx->blitter, dst, color,
482 dstx, dsty, width, height);
483 r600_blitter_end(ctx);
484 }
485
486 static void r600_clear_depth_stencil(struct pipe_context *ctx,
487 struct pipe_surface *dst,
488 unsigned clear_flags,
489 double depth,
490 unsigned stencil,
491 unsigned dstx, unsigned dsty,
492 unsigned width, unsigned height)
493 {
494 struct r600_context *rctx = (struct r600_context *)ctx;
495
496 r600_blitter_begin(ctx, R600_CLEAR_SURFACE);
497 util_blitter_clear_depth_stencil(rctx->blitter, dst, clear_flags, depth, stencil,
498 dstx, dsty, width, height);
499 r600_blitter_end(ctx);
500 }
501
502 void r600_copy_buffer(struct pipe_context *ctx, struct pipe_resource *dst, unsigned dstx,
503 struct pipe_resource *src, const struct pipe_box *src_box)
504 {
505 struct r600_context *rctx = (struct r600_context*)ctx;
506
507 if (rctx->screen->has_cp_dma) {
508 r600_cp_dma_copy_buffer(rctx, dst, dstx, src, src_box->x, src_box->width);
509 }
510 else if (rctx->screen->has_streamout &&
511 /* Require 4-byte alignment. */
512 dstx % 4 == 0 && src_box->x % 4 == 0 && src_box->width % 4 == 0) {
513 r600_blitter_begin(ctx, R600_COPY_BUFFER);
514 util_blitter_copy_buffer(rctx->blitter, dst, dstx, src, src_box->x, src_box->width);
515 r600_blitter_end(ctx);
516 } else {
517 util_resource_copy_region(ctx, dst, 0, dstx, 0, 0, src, 0, src_box);
518 }
519 }
520
521 static void r600_clear_buffer(struct pipe_context *ctx, struct pipe_resource *dst,
522 unsigned offset, unsigned size, unsigned char value)
523 {
524 struct r600_context *rctx = (struct r600_context*)ctx;
525 uint32_t v = value;
526
527 if (rctx->screen->has_cp_dma &&
528 rctx->chip_class >= EVERGREEN &&
529 offset % 4 == 0 && size % 4 == 0) {
530 uint32_t clear_value = v | (v << 8) | (v << 16) | (v << 24);
531
532 evergreen_cp_dma_clear_buffer(rctx, dst, offset, size, clear_value);
533 } else if (rctx->screen->has_streamout && offset % 4 == 0 && size % 4 == 0) {
534 union pipe_color_union clear_value;
535
536 clear_value.ui[0] = v | (v << 8) | (v << 16) | (v << 24);
537
538 r600_blitter_begin(ctx, R600_DISABLE_RENDER_COND);
539 util_blitter_clear_buffer(rctx->blitter, dst, offset, size,
540 1, &clear_value);
541 r600_blitter_end(ctx);
542 } else {
543 char *map = r600_buffer_mmap_sync_with_rings(rctx, r600_resource(dst),
544 PIPE_TRANSFER_WRITE);
545 memset(map + offset, value, size);
546 }
547 }
548
549 void r600_screen_clear_buffer(struct r600_screen *rscreen, struct pipe_resource *dst,
550 unsigned offset, unsigned size, unsigned char value)
551 {
552 pipe_mutex_lock(rscreen->aux_context_lock);
553 r600_clear_buffer(rscreen->aux_context, dst, offset, size, value);
554 rscreen->aux_context->flush(rscreen->aux_context, NULL, 0);
555 pipe_mutex_unlock(rscreen->aux_context_lock);
556 }
557
558 static bool util_format_is_subsampled_2x1_32bpp(enum pipe_format format)
559 {
560 const struct util_format_description *desc = util_format_description(format);
561
562 return desc->layout == UTIL_FORMAT_LAYOUT_SUBSAMPLED &&
563 desc->block.width == 2 &&
564 desc->block.height == 1 &&
565 desc->block.bits == 32;
566 }
567
568 static void r600_resource_copy_region(struct pipe_context *ctx,
569 struct pipe_resource *dst,
570 unsigned dst_level,
571 unsigned dstx, unsigned dsty, unsigned dstz,
572 struct pipe_resource *src,
573 unsigned src_level,
574 const struct pipe_box *src_box)
575 {
576 struct r600_context *rctx = (struct r600_context *)ctx;
577 struct pipe_surface *dst_view, dst_templ;
578 struct pipe_sampler_view src_templ, *src_view;
579 unsigned dst_width, dst_height, src_width0, src_height0, src_widthFL, src_heightFL;
580 struct pipe_box sbox, dstbox;
581 bool copy_all_samples;
582
583 /* Handle buffers first. */
584 if (dst->target == PIPE_BUFFER && src->target == PIPE_BUFFER) {
585 r600_copy_buffer(ctx, dst, dstx, src, src_box);
586 return;
587 }
588
589 assert(u_max_sample(dst) == u_max_sample(src));
590
591 /* The driver doesn't decompress resources automatically while
592 * u_blitter is rendering. */
593 if (!r600_decompress_subresource(ctx, src, src_level,
594 src_box->z, src_box->z + src_box->depth - 1)) {
595 return; /* error */
596 }
597
598 dst_width = u_minify(dst->width0, dst_level);
599 dst_height = u_minify(dst->height0, dst_level);
600 src_width0 = src->width0;
601 src_height0 = src->height0;
602 src_widthFL = u_minify(src->width0, src_level);
603 src_heightFL = u_minify(src->height0, src_level);
604
605 util_blitter_default_dst_texture(&dst_templ, dst, dst_level, dstz);
606 util_blitter_default_src_texture(&src_templ, src, src_level);
607
608 if (util_format_is_compressed(src->format)) {
609 unsigned blocksize = util_format_get_blocksize(src->format);
610
611 if (blocksize == 8)
612 src_templ.format = PIPE_FORMAT_R16G16B16A16_UINT; /* 64-bit block */
613 else
614 src_templ.format = PIPE_FORMAT_R32G32B32A32_UINT; /* 128-bit block */
615 dst_templ.format = src_templ.format;
616
617 dst_width = util_format_get_nblocksx(dst->format, dst_width);
618 dst_height = util_format_get_nblocksy(dst->format, dst_height);
619 src_width0 = util_format_get_nblocksx(src->format, src_width0);
620 src_height0 = util_format_get_nblocksy(src->format, src_height0);
621 src_widthFL = util_format_get_nblocksx(src->format, src_widthFL);
622 src_heightFL = util_format_get_nblocksy(src->format, src_heightFL);
623
624 dstx = util_format_get_nblocksx(dst->format, dstx);
625 dsty = util_format_get_nblocksy(dst->format, dsty);
626
627 sbox.x = util_format_get_nblocksx(src->format, src_box->x);
628 sbox.y = util_format_get_nblocksy(src->format, src_box->y);
629 sbox.z = src_box->z;
630 sbox.width = util_format_get_nblocksx(src->format, src_box->width);
631 sbox.height = util_format_get_nblocksy(src->format, src_box->height);
632 sbox.depth = src_box->depth;
633 src_box = &sbox;
634 } else if (!util_blitter_is_copy_supported(rctx->blitter, dst, src,
635 PIPE_MASK_RGBAZS)) {
636 if (util_format_is_subsampled_2x1_32bpp(src->format)) {
637
638 src_templ.format = PIPE_FORMAT_R8G8B8A8_UINT;
639 dst_templ.format = PIPE_FORMAT_R8G8B8A8_UINT;
640
641 dst_width = util_format_get_nblocksx(dst->format, dst_width);
642 src_width0 = util_format_get_nblocksx(src->format, src_width0);
643 src_widthFL = util_format_get_nblocksx(src->format, src_widthFL);
644
645 dstx = util_format_get_nblocksx(dst->format, dstx);
646
647 sbox = *src_box;
648 sbox.x = util_format_get_nblocksx(src->format, src_box->x);
649 sbox.width = util_format_get_nblocksx(src->format, src_box->width);
650 src_box = &sbox;
651 } else {
652 unsigned blocksize = util_format_get_blocksize(src->format);
653
654 switch (blocksize) {
655 case 1:
656 dst_templ.format = PIPE_FORMAT_R8_UNORM;
657 src_templ.format = PIPE_FORMAT_R8_UNORM;
658 break;
659 case 2:
660 dst_templ.format = PIPE_FORMAT_R8G8_UNORM;
661 src_templ.format = PIPE_FORMAT_R8G8_UNORM;
662 break;
663 case 4:
664 dst_templ.format = PIPE_FORMAT_R8G8B8A8_UNORM;
665 src_templ.format = PIPE_FORMAT_R8G8B8A8_UNORM;
666 break;
667 case 8:
668 dst_templ.format = PIPE_FORMAT_R16G16B16A16_UINT;
669 src_templ.format = PIPE_FORMAT_R16G16B16A16_UINT;
670 break;
671 case 16:
672 dst_templ.format = PIPE_FORMAT_R32G32B32A32_UINT;
673 src_templ.format = PIPE_FORMAT_R32G32B32A32_UINT;
674 break;
675 default:
676 fprintf(stderr, "Unhandled format %s with blocksize %u\n",
677 util_format_short_name(src->format), blocksize);
678 assert(0);
679 }
680 }
681 }
682
683 dst_view = r600_create_surface_custom(ctx, dst, &dst_templ, dst_width, dst_height);
684
685 if (rctx->chip_class >= EVERGREEN) {
686 src_view = evergreen_create_sampler_view_custom(ctx, src, &src_templ,
687 src_width0, src_height0);
688 } else {
689 src_view = r600_create_sampler_view_custom(ctx, src, &src_templ,
690 src_widthFL, src_heightFL);
691 }
692
693 copy_all_samples = rctx->screen->msaa_texture_support != MSAA_TEXTURE_SAMPLE_ZERO;
694
695 u_box_3d(dstx, dsty, dstz, abs(src_box->width), abs(src_box->height),
696 abs(src_box->depth), &dstbox);
697
698 /* Copy. */
699 r600_blitter_begin(ctx, R600_COPY_TEXTURE);
700 util_blitter_blit_generic(rctx->blitter, dst_view, &dstbox,
701 src_view, src_box, src_width0, src_height0,
702 PIPE_MASK_RGBAZS, PIPE_TEX_FILTER_NEAREST, NULL,
703 copy_all_samples);
704 r600_blitter_end(ctx);
705
706 pipe_surface_reference(&dst_view, NULL);
707 pipe_sampler_view_reference(&src_view, NULL);
708 }
709
710 /* For MSAA integer resolving to work, we change the format to NORM using this function. */
711 static enum pipe_format int_to_norm_format(enum pipe_format format)
712 {
713 switch (format) {
714 #define REPLACE_FORMAT_SIGN(format,sign) \
715 case PIPE_FORMAT_##format##_##sign##INT: \
716 return PIPE_FORMAT_##format##_##sign##NORM
717 #define REPLACE_FORMAT(format) \
718 REPLACE_FORMAT_SIGN(format, U); \
719 REPLACE_FORMAT_SIGN(format, S)
720
721 REPLACE_FORMAT_SIGN(B10G10R10A2, U);
722 REPLACE_FORMAT(R8);
723 REPLACE_FORMAT(R8G8);
724 REPLACE_FORMAT(R8G8B8);
725 REPLACE_FORMAT(R8G8B8A8);
726 REPLACE_FORMAT(A8);
727 REPLACE_FORMAT(I8);
728 REPLACE_FORMAT(L8);
729 REPLACE_FORMAT(L8A8);
730 REPLACE_FORMAT(R16);
731 REPLACE_FORMAT(R16G16);
732 REPLACE_FORMAT(R16G16B16);
733 REPLACE_FORMAT(R16G16B16A16);
734 REPLACE_FORMAT(A16);
735 REPLACE_FORMAT(I16);
736 REPLACE_FORMAT(L16);
737 REPLACE_FORMAT(L16A16);
738
739 #undef REPLACE_FORMAT
740 #undef REPLACE_FORMAT_SIGN
741 default:
742 return format;
743 }
744 }
745
746 static void r600_msaa_color_resolve(struct pipe_context *ctx,
747 const struct pipe_blit_info *info)
748 {
749 struct r600_context *rctx = (struct r600_context *)ctx;
750 struct pipe_screen *screen = ctx->screen;
751 struct pipe_resource *tmp, templ;
752 struct pipe_blit_info blit;
753 unsigned sample_mask =
754 rctx->chip_class == CAYMAN ? ~0 :
755 ((1ull << MAX2(1, info->src.resource->nr_samples)) - 1);
756
757 assert(info->src.level == 0);
758 assert(info->src.box.depth == 1);
759 assert(info->dst.box.depth == 1);
760
761 if (is_simple_msaa_resolve(info)) {
762 r600_blitter_begin(ctx, R600_COLOR_RESOLVE);
763 util_blitter_custom_resolve_color(rctx->blitter,
764 info->dst.resource, info->dst.level,
765 info->dst.box.z,
766 info->src.resource, info->src.box.z,
767 sample_mask, rctx->custom_blend_resolve,
768 int_to_norm_format(info->dst.format));
769 r600_blitter_end(ctx);
770 return;
771 }
772
773 /* resolve into a temporary texture, then blit */
774 templ.target = PIPE_TEXTURE_2D;
775 templ.format = info->src.resource->format;
776 templ.width0 = info->src.resource->width0;
777 templ.height0 = info->src.resource->height0;
778 templ.depth0 = 1;
779 templ.array_size = 1;
780 templ.last_level = 0;
781 templ.nr_samples = 0;
782 templ.usage = PIPE_USAGE_STATIC;
783 templ.bind = PIPE_BIND_RENDER_TARGET | PIPE_BIND_SAMPLER_VIEW;
784 templ.flags = R600_RESOURCE_FLAG_FORCE_TILING; /* dst must not have a linear layout */
785
786 tmp = screen->resource_create(screen, &templ);
787
788 /* resolve */
789 r600_blitter_begin(ctx, R600_COLOR_RESOLVE);
790 util_blitter_custom_resolve_color(rctx->blitter,
791 tmp, 0, 0,
792 info->src.resource, info->src.box.z,
793 sample_mask, rctx->custom_blend_resolve,
794 int_to_norm_format(tmp->format));
795 r600_blitter_end(ctx);
796
797 /* blit */
798 blit = *info;
799 blit.src.resource = tmp;
800 blit.src.box.z = 0;
801
802 r600_blitter_begin(ctx, R600_BLIT);
803 util_blitter_blit(rctx->blitter, &blit);
804 r600_blitter_end(ctx);
805
806 pipe_resource_reference(&tmp, NULL);
807 }
808
809 static void r600_blit(struct pipe_context *ctx,
810 const struct pipe_blit_info *info)
811 {
812 struct r600_context *rctx = (struct r600_context*)ctx;
813
814 assert(util_blitter_is_blit_supported(rctx->blitter, info));
815
816 if (info->src.resource->nr_samples > 1 &&
817 info->dst.resource->nr_samples <= 1 &&
818 !util_format_is_depth_or_stencil(info->src.resource->format) &&
819 !util_format_is_pure_integer(int_to_norm_format(info->src.resource->format))) {
820 r600_msaa_color_resolve(ctx, info);
821 return;
822 }
823
824 /* The driver doesn't decompress resources automatically while
825 * u_blitter is rendering. */
826 if (!r600_decompress_subresource(ctx, info->src.resource, info->src.level,
827 info->src.box.z,
828 info->src.box.z + info->src.box.depth - 1)) {
829 return; /* error */
830 }
831
832 r600_blitter_begin(ctx, R600_BLIT);
833 util_blitter_blit(rctx->blitter, info);
834 r600_blitter_end(ctx);
835 }
836
837 void r600_init_blit_functions(struct r600_context *rctx)
838 {
839 rctx->context.clear = r600_clear;
840 rctx->context.clear_render_target = r600_clear_render_target;
841 rctx->context.clear_depth_stencil = r600_clear_depth_stencil;
842 rctx->context.resource_copy_region = r600_resource_copy_region;
843 rctx->context.blit = r600_blit;
844 }