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gallium/u_blitter: make clearing independent of the colorbuffer format
[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
294 if (!rtex->dirty_level_mask)
295 return;
296
297 for (level = first_level; level <= last_level; level++) {
298 if (!(rtex->dirty_level_mask & (1 << level)))
299 continue;
300
301 /* The smaller the mipmap level, the less layers there are
302 * as far as 3D textures are concerned. */
303 max_layer = util_max_layer(&rtex->resource.b.b, level);
304 checked_last_layer = last_layer < max_layer ? last_layer : max_layer;
305
306 for (layer = first_layer; layer <= checked_last_layer; layer++) {
307 struct pipe_surface *cbsurf, surf_tmpl;
308
309 surf_tmpl.format = rtex->resource.b.b.format;
310 surf_tmpl.u.tex.level = level;
311 surf_tmpl.u.tex.first_layer = layer;
312 surf_tmpl.u.tex.last_layer = layer;
313 cbsurf = ctx->create_surface(ctx, &rtex->resource.b.b, &surf_tmpl);
314
315 r600_blitter_begin(ctx, R600_DECOMPRESS);
316 util_blitter_custom_color(rctx->blitter, cbsurf, rctx->custom_blend_decompress);
317 r600_blitter_end(ctx);
318
319 pipe_surface_reference(&cbsurf, NULL);
320 }
321
322 /* The texture will always be dirty if some layers aren't flushed.
323 * I don't think this case occurs often though. */
324 if (first_layer == 0 && last_layer == max_layer) {
325 rtex->dirty_level_mask &= ~(1 << level);
326 }
327 }
328 }
329
330 void r600_decompress_color_textures(struct r600_context *rctx,
331 struct r600_samplerview_state *textures)
332 {
333 unsigned i;
334 unsigned mask = textures->compressed_colortex_mask;
335
336 while (mask) {
337 struct pipe_sampler_view *view;
338 struct r600_texture *tex;
339
340 i = u_bit_scan(&mask);
341
342 view = &textures->views[i]->base;
343 assert(view);
344
345 tex = (struct r600_texture *)view->texture;
346 assert(tex->cmask_size && tex->fmask_size);
347
348 r600_blit_decompress_color(&rctx->context, tex,
349 view->u.tex.first_level, view->u.tex.last_level,
350 0, util_max_layer(&tex->resource.b.b, view->u.tex.first_level));
351 }
352 }
353
354 /* Helper for decompressing a portion of a color or depth resource before
355 * blitting if any decompression is needed.
356 * The driver doesn't decompress resources automatically while u_blitter is
357 * rendering. */
358 static bool r600_decompress_subresource(struct pipe_context *ctx,
359 struct pipe_resource *tex,
360 unsigned level,
361 unsigned first_layer, unsigned last_layer)
362 {
363 struct r600_context *rctx = (struct r600_context *)ctx;
364 struct r600_texture *rtex = (struct r600_texture*)tex;
365
366 if (rtex->is_depth && !rtex->is_flushing_texture) {
367 if (rctx->chip_class >= EVERGREEN ||
368 r600_can_read_depth(rtex)) {
369 r600_blit_decompress_depth_in_place(rctx, rtex,
370 level, level,
371 first_layer, last_layer);
372 } else {
373 if (!r600_init_flushed_depth_texture(ctx, tex, NULL))
374 return false; /* error */
375
376 r600_blit_decompress_depth(ctx, rtex, NULL,
377 level, level,
378 first_layer, last_layer,
379 0, u_max_sample(tex));
380 }
381 } else if (rtex->fmask_size && rtex->cmask_size) {
382 r600_blit_decompress_color(ctx, rtex, level, level,
383 first_layer, last_layer);
384 }
385 return true;
386 }
387
388 static boolean is_simple_msaa_resolve(const struct pipe_blit_info *info)
389 {
390 unsigned dst_width = u_minify(info->dst.resource->width0, info->dst.level);
391 unsigned dst_height = u_minify(info->dst.resource->height0, info->dst.level);
392 struct r600_texture *dst = (struct r600_texture*)info->dst.resource;
393 unsigned dst_tile_mode = dst->surface.level[info->dst.level].mode;
394
395 return info->dst.resource->format == info->src.resource->format &&
396 info->dst.resource->format == info->dst.format &&
397 info->src.resource->format == info->src.format &&
398 !info->scissor_enable &&
399 info->mask == PIPE_MASK_RGBA &&
400 dst_width == info->src.resource->width0 &&
401 dst_height == info->src.resource->height0 &&
402 info->dst.box.x == 0 &&
403 info->dst.box.y == 0 &&
404 info->dst.box.width == dst_width &&
405 info->dst.box.height == dst_height &&
406 info->src.box.x == 0 &&
407 info->src.box.y == 0 &&
408 info->src.box.width == dst_width &&
409 info->src.box.height == dst_height &&
410 /* Dst must be tiled. If it's not, we have to use a temporary
411 * resource which is tiled. */
412 dst_tile_mode >= RADEON_SURF_MODE_1D;
413 }
414
415 static void r600_clear(struct pipe_context *ctx, unsigned buffers,
416 const union pipe_color_union *color,
417 double depth, unsigned stencil)
418 {
419 struct r600_context *rctx = (struct r600_context *)ctx;
420 struct pipe_framebuffer_state *fb = &rctx->framebuffer.state;
421
422 /* if hyperz enabled just clear hyperz */
423 if (fb->zsbuf && (buffers & PIPE_CLEAR_DEPTH)) {
424 struct r600_texture *rtex;
425 unsigned level = fb->zsbuf->u.tex.level;
426
427 rtex = (struct r600_texture*)fb->zsbuf->texture;
428
429 /* We can't use hyperz fast clear if each slice of a texture
430 * array are clear to different value. To simplify code just
431 * disable fast clear for texture array.
432 */
433 /* Only use htile for first level */
434 if (rtex->htile && !level && rtex->surface.array_size == 1) {
435 if (rtex->depth_clear != depth) {
436 rtex->depth_clear = depth;
437 rctx->db_state.atom.dirty = true;
438 }
439 rctx->db_misc_state.htile_clear = true;
440 rctx->db_misc_state.atom.dirty = true;
441 }
442 }
443
444 r600_blitter_begin(ctx, R600_CLEAR);
445 util_blitter_clear(rctx->blitter, fb->width, fb->height,
446 buffers, color, depth, stencil);
447 r600_blitter_end(ctx);
448
449 /* disable fast clear */
450 if (rctx->db_misc_state.htile_clear) {
451 rctx->db_misc_state.htile_clear = false;
452 rctx->db_misc_state.atom.dirty = true;
453 }
454 }
455
456 static void r600_clear_render_target(struct pipe_context *ctx,
457 struct pipe_surface *dst,
458 const union pipe_color_union *color,
459 unsigned dstx, unsigned dsty,
460 unsigned width, unsigned height)
461 {
462 struct r600_context *rctx = (struct r600_context *)ctx;
463
464 r600_blitter_begin(ctx, R600_CLEAR_SURFACE);
465 util_blitter_clear_render_target(rctx->blitter, dst, color,
466 dstx, dsty, width, height);
467 r600_blitter_end(ctx);
468 }
469
470 static void r600_clear_depth_stencil(struct pipe_context *ctx,
471 struct pipe_surface *dst,
472 unsigned clear_flags,
473 double depth,
474 unsigned stencil,
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_depth_stencil(rctx->blitter, dst, clear_flags, depth, stencil,
482 dstx, dsty, width, height);
483 r600_blitter_end(ctx);
484 }
485
486 void r600_copy_buffer(struct pipe_context *ctx, struct pipe_resource *dst, unsigned dstx,
487 struct pipe_resource *src, const struct pipe_box *src_box)
488 {
489 struct r600_context *rctx = (struct r600_context*)ctx;
490
491 if (rctx->screen->has_cp_dma) {
492 r600_cp_dma_copy_buffer(rctx, dst, dstx, src, src_box->x, src_box->width);
493 }
494 else if (rctx->screen->has_streamout &&
495 /* Require 4-byte alignment. */
496 dstx % 4 == 0 && src_box->x % 4 == 0 && src_box->width % 4 == 0) {
497 r600_blitter_begin(ctx, R600_COPY_BUFFER);
498 util_blitter_copy_buffer(rctx->blitter, dst, dstx, src, src_box->x, src_box->width);
499 r600_blitter_end(ctx);
500 } else {
501 util_resource_copy_region(ctx, dst, 0, dstx, 0, 0, src, 0, src_box);
502 }
503 }
504
505 static void r600_clear_buffer(struct pipe_context *ctx, struct pipe_resource *dst,
506 unsigned offset, unsigned size, unsigned char value)
507 {
508 struct r600_context *rctx = (struct r600_context*)ctx;
509 uint32_t v = value;
510
511 if (rctx->screen->has_cp_dma &&
512 rctx->chip_class >= EVERGREEN &&
513 offset % 4 == 0 && size % 4 == 0) {
514 uint32_t clear_value = v | (v << 8) | (v << 16) | (v << 24);
515
516 evergreen_cp_dma_clear_buffer(rctx, dst, offset, size, clear_value);
517 } else if (rctx->screen->has_streamout && offset % 4 == 0 && size % 4 == 0) {
518 union pipe_color_union clear_value;
519
520 clear_value.ui[0] = v | (v << 8) | (v << 16) | (v << 24);
521
522 r600_blitter_begin(ctx, R600_DISABLE_RENDER_COND);
523 util_blitter_clear_buffer(rctx->blitter, dst, offset, size,
524 1, &clear_value);
525 r600_blitter_end(ctx);
526 } else {
527 char *map = r600_buffer_mmap_sync_with_rings(rctx, r600_resource(dst),
528 PIPE_TRANSFER_WRITE);
529 memset(map + offset, value, size);
530 }
531 }
532
533 void r600_screen_clear_buffer(struct r600_screen *rscreen, struct pipe_resource *dst,
534 unsigned offset, unsigned size, unsigned char value)
535 {
536 pipe_mutex_lock(rscreen->aux_context_lock);
537 r600_clear_buffer(rscreen->aux_context, dst, offset, size, value);
538 rscreen->aux_context->flush(rscreen->aux_context, NULL, 0);
539 pipe_mutex_unlock(rscreen->aux_context_lock);
540 }
541
542 static bool util_format_is_subsampled_2x1_32bpp(enum pipe_format format)
543 {
544 const struct util_format_description *desc = util_format_description(format);
545
546 return desc->layout == UTIL_FORMAT_LAYOUT_SUBSAMPLED &&
547 desc->block.width == 2 &&
548 desc->block.height == 1 &&
549 desc->block.bits == 32;
550 }
551
552 static void r600_resource_copy_region(struct pipe_context *ctx,
553 struct pipe_resource *dst,
554 unsigned dst_level,
555 unsigned dstx, unsigned dsty, unsigned dstz,
556 struct pipe_resource *src,
557 unsigned src_level,
558 const struct pipe_box *src_box)
559 {
560 struct r600_context *rctx = (struct r600_context *)ctx;
561 struct pipe_surface *dst_view, dst_templ;
562 struct pipe_sampler_view src_templ, *src_view;
563 unsigned dst_width, dst_height, src_width0, src_height0, src_widthFL, src_heightFL;
564 struct pipe_box sbox, dstbox;
565
566 /* Handle buffers first. */
567 if (dst->target == PIPE_BUFFER && src->target == PIPE_BUFFER) {
568 r600_copy_buffer(ctx, dst, dstx, src, src_box);
569 return;
570 }
571
572 assert(u_max_sample(dst) == u_max_sample(src));
573
574 /* The driver doesn't decompress resources automatically while
575 * u_blitter is rendering. */
576 if (!r600_decompress_subresource(ctx, src, src_level,
577 src_box->z, src_box->z + src_box->depth - 1)) {
578 return; /* error */
579 }
580
581 dst_width = u_minify(dst->width0, dst_level);
582 dst_height = u_minify(dst->height0, dst_level);
583 src_width0 = src->width0;
584 src_height0 = src->height0;
585 src_widthFL = u_minify(src->width0, src_level);
586 src_heightFL = u_minify(src->height0, src_level);
587
588 util_blitter_default_dst_texture(&dst_templ, dst, dst_level, dstz);
589 util_blitter_default_src_texture(&src_templ, src, src_level);
590
591 if (util_format_is_compressed(src->format)) {
592 unsigned blocksize = util_format_get_blocksize(src->format);
593
594 if (blocksize == 8)
595 src_templ.format = PIPE_FORMAT_R16G16B16A16_UINT; /* 64-bit block */
596 else
597 src_templ.format = PIPE_FORMAT_R32G32B32A32_UINT; /* 128-bit block */
598 dst_templ.format = src_templ.format;
599
600 dst_width = util_format_get_nblocksx(dst->format, dst_width);
601 dst_height = util_format_get_nblocksy(dst->format, dst_height);
602 src_width0 = util_format_get_nblocksx(src->format, src_width0);
603 src_height0 = util_format_get_nblocksy(src->format, src_height0);
604 src_widthFL = util_format_get_nblocksx(src->format, src_widthFL);
605 src_heightFL = util_format_get_nblocksy(src->format, src_heightFL);
606
607 dstx = util_format_get_nblocksx(dst->format, dstx);
608 dsty = util_format_get_nblocksy(dst->format, dsty);
609
610 sbox.x = util_format_get_nblocksx(src->format, src_box->x);
611 sbox.y = util_format_get_nblocksy(src->format, src_box->y);
612 sbox.z = src_box->z;
613 sbox.width = util_format_get_nblocksx(src->format, src_box->width);
614 sbox.height = util_format_get_nblocksy(src->format, src_box->height);
615 sbox.depth = src_box->depth;
616 src_box = &sbox;
617 } else if (!util_blitter_is_copy_supported(rctx->blitter, dst, src,
618 PIPE_MASK_RGBAZS)) {
619 if (util_format_is_subsampled_2x1_32bpp(src->format)) {
620
621 src_templ.format = PIPE_FORMAT_R8G8B8A8_UINT;
622 dst_templ.format = PIPE_FORMAT_R8G8B8A8_UINT;
623
624 dst_width = util_format_get_nblocksx(dst->format, dst_width);
625 src_width0 = util_format_get_nblocksx(src->format, src_width0);
626 src_widthFL = util_format_get_nblocksx(src->format, src_widthFL);
627
628 dstx = util_format_get_nblocksx(dst->format, dstx);
629
630 sbox = *src_box;
631 sbox.x = util_format_get_nblocksx(src->format, src_box->x);
632 sbox.width = util_format_get_nblocksx(src->format, src_box->width);
633 src_box = &sbox;
634 } else {
635 unsigned blocksize = util_format_get_blocksize(src->format);
636
637 switch (blocksize) {
638 case 1:
639 dst_templ.format = PIPE_FORMAT_R8_UNORM;
640 src_templ.format = PIPE_FORMAT_R8_UNORM;
641 break;
642 case 2:
643 dst_templ.format = PIPE_FORMAT_R8G8_UNORM;
644 src_templ.format = PIPE_FORMAT_R8G8_UNORM;
645 break;
646 case 4:
647 dst_templ.format = PIPE_FORMAT_R8G8B8A8_UNORM;
648 src_templ.format = PIPE_FORMAT_R8G8B8A8_UNORM;
649 break;
650 case 8:
651 dst_templ.format = PIPE_FORMAT_R16G16B16A16_UINT;
652 src_templ.format = PIPE_FORMAT_R16G16B16A16_UINT;
653 break;
654 case 16:
655 dst_templ.format = PIPE_FORMAT_R32G32B32A32_UINT;
656 src_templ.format = PIPE_FORMAT_R32G32B32A32_UINT;
657 break;
658 default:
659 fprintf(stderr, "Unhandled format %s with blocksize %u\n",
660 util_format_short_name(src->format), blocksize);
661 assert(0);
662 }
663 }
664 }
665
666 dst_view = r600_create_surface_custom(ctx, dst, &dst_templ, dst_width, dst_height);
667
668 if (rctx->chip_class >= EVERGREEN) {
669 src_view = evergreen_create_sampler_view_custom(ctx, src, &src_templ,
670 src_width0, src_height0);
671 } else {
672 src_view = r600_create_sampler_view_custom(ctx, src, &src_templ,
673 src_widthFL, src_heightFL);
674 }
675
676 u_box_3d(dstx, dsty, dstz, abs(src_box->width), abs(src_box->height),
677 abs(src_box->depth), &dstbox);
678
679 /* Copy. */
680 r600_blitter_begin(ctx, R600_COPY_TEXTURE);
681 util_blitter_blit_generic(rctx->blitter, dst_view, &dstbox,
682 src_view, src_box, src_width0, src_height0,
683 PIPE_MASK_RGBAZS, PIPE_TEX_FILTER_NEAREST, NULL,
684 TRUE);
685 r600_blitter_end(ctx);
686
687 pipe_surface_reference(&dst_view, NULL);
688 pipe_sampler_view_reference(&src_view, NULL);
689 }
690
691 /* For MSAA integer resolving to work, we change the format to NORM using this function. */
692 static enum pipe_format int_to_norm_format(enum pipe_format format)
693 {
694 switch (format) {
695 #define REPLACE_FORMAT_SIGN(format,sign) \
696 case PIPE_FORMAT_##format##_##sign##INT: \
697 return PIPE_FORMAT_##format##_##sign##NORM
698 #define REPLACE_FORMAT(format) \
699 REPLACE_FORMAT_SIGN(format, U); \
700 REPLACE_FORMAT_SIGN(format, S)
701
702 REPLACE_FORMAT_SIGN(B10G10R10A2, U);
703 REPLACE_FORMAT(R8);
704 REPLACE_FORMAT(R8G8);
705 REPLACE_FORMAT(R8G8B8);
706 REPLACE_FORMAT(R8G8B8A8);
707 REPLACE_FORMAT(A8);
708 REPLACE_FORMAT(I8);
709 REPLACE_FORMAT(L8);
710 REPLACE_FORMAT(L8A8);
711 REPLACE_FORMAT(R16);
712 REPLACE_FORMAT(R16G16);
713 REPLACE_FORMAT(R16G16B16);
714 REPLACE_FORMAT(R16G16B16A16);
715 REPLACE_FORMAT(A16);
716 REPLACE_FORMAT(I16);
717 REPLACE_FORMAT(L16);
718 REPLACE_FORMAT(L16A16);
719
720 #undef REPLACE_FORMAT
721 #undef REPLACE_FORMAT_SIGN
722 default:
723 return format;
724 }
725 }
726
727 static void r600_msaa_color_resolve(struct pipe_context *ctx,
728 const struct pipe_blit_info *info)
729 {
730 struct r600_context *rctx = (struct r600_context *)ctx;
731 struct pipe_screen *screen = ctx->screen;
732 struct pipe_resource *tmp, templ;
733 struct pipe_blit_info blit;
734 unsigned sample_mask =
735 rctx->chip_class == CAYMAN ? ~0 :
736 ((1ull << MAX2(1, info->src.resource->nr_samples)) - 1);
737
738 assert(info->src.level == 0);
739 assert(info->src.box.depth == 1);
740 assert(info->dst.box.depth == 1);
741
742 if (is_simple_msaa_resolve(info)) {
743 r600_blitter_begin(ctx, R600_COLOR_RESOLVE);
744 util_blitter_custom_resolve_color(rctx->blitter,
745 info->dst.resource, info->dst.level,
746 info->dst.box.z,
747 info->src.resource, info->src.box.z,
748 sample_mask, rctx->custom_blend_resolve,
749 int_to_norm_format(info->dst.format));
750 r600_blitter_end(ctx);
751 return;
752 }
753
754 /* resolve into a temporary texture, then blit */
755 templ.target = PIPE_TEXTURE_2D;
756 templ.format = info->src.resource->format;
757 templ.width0 = info->src.resource->width0;
758 templ.height0 = info->src.resource->height0;
759 templ.depth0 = 1;
760 templ.array_size = 1;
761 templ.last_level = 0;
762 templ.nr_samples = 0;
763 templ.usage = PIPE_USAGE_STATIC;
764 templ.bind = PIPE_BIND_RENDER_TARGET | PIPE_BIND_SAMPLER_VIEW;
765 templ.flags = R600_RESOURCE_FLAG_FORCE_TILING; /* dst must not have a linear layout */
766
767 tmp = screen->resource_create(screen, &templ);
768
769 /* resolve */
770 r600_blitter_begin(ctx, R600_COLOR_RESOLVE);
771 util_blitter_custom_resolve_color(rctx->blitter,
772 tmp, 0, 0,
773 info->src.resource, info->src.box.z,
774 sample_mask, rctx->custom_blend_resolve,
775 int_to_norm_format(tmp->format));
776 r600_blitter_end(ctx);
777
778 /* blit */
779 blit = *info;
780 blit.src.resource = tmp;
781 blit.src.box.z = 0;
782
783 r600_blitter_begin(ctx, R600_BLIT);
784 util_blitter_blit(rctx->blitter, &blit);
785 r600_blitter_end(ctx);
786
787 pipe_resource_reference(&tmp, NULL);
788 }
789
790 static void r600_blit(struct pipe_context *ctx,
791 const struct pipe_blit_info *info)
792 {
793 struct r600_context *rctx = (struct r600_context*)ctx;
794
795 assert(util_blitter_is_blit_supported(rctx->blitter, info));
796
797 if (info->src.resource->nr_samples > 1 &&
798 info->dst.resource->nr_samples <= 1 &&
799 !util_format_is_depth_or_stencil(info->src.resource->format) &&
800 !util_format_is_pure_integer(int_to_norm_format(info->src.resource->format))) {
801 r600_msaa_color_resolve(ctx, info);
802 return;
803 }
804
805 /* The driver doesn't decompress resources automatically while
806 * u_blitter is rendering. */
807 if (!r600_decompress_subresource(ctx, info->src.resource, info->src.level,
808 info->src.box.z,
809 info->src.box.z + info->src.box.depth - 1)) {
810 return; /* error */
811 }
812
813 r600_blitter_begin(ctx, R600_BLIT);
814 util_blitter_blit(rctx->blitter, info);
815 r600_blitter_end(ctx);
816 }
817
818 void r600_init_blit_functions(struct r600_context *rctx)
819 {
820 rctx->context.clear = r600_clear;
821 rctx->context.clear_render_target = r600_clear_render_target;
822 rctx->context.clear_depth_stencil = r600_clear_depth_stencil;
823 rctx->context.resource_copy_region = r600_resource_copy_region;
824 rctx->context.blit = r600_blit;
825 }