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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->num_so_targets,
62 (struct pipe_stream_output_target**)rctx->so_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 = u_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 = u_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, u_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, u_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 /* XXX the 2x and 4x cases are broken. */
304 if (rtex->resource.b.b.nr_samples == 8)
305 blend_decompress = rctx->custom_blend_fmask_decompress;
306 else
307 blend_decompress = rctx->custom_blend_decompress;
308 break;
309 case MSAA_TEXTURE_SAMPLE_ZERO:
310 default:
311 /* Nothing to do. */
312 rtex->dirty_level_mask = 0;
313 return;
314 }
315
316 for (level = first_level; level <= last_level; level++) {
317 if (!(rtex->dirty_level_mask & (1 << level)))
318 continue;
319
320 /* The smaller the mipmap level, the less layers there are
321 * as far as 3D textures are concerned. */
322 max_layer = u_max_layer(&rtex->resource.b.b, level);
323 checked_last_layer = last_layer < max_layer ? last_layer : max_layer;
324
325 for (layer = first_layer; layer <= checked_last_layer; layer++) {
326 struct pipe_surface *cbsurf, surf_tmpl;
327
328 surf_tmpl.format = rtex->resource.b.b.format;
329 surf_tmpl.u.tex.level = level;
330 surf_tmpl.u.tex.first_layer = layer;
331 surf_tmpl.u.tex.last_layer = layer;
332 cbsurf = ctx->create_surface(ctx, &rtex->resource.b.b, &surf_tmpl);
333
334 r600_blitter_begin(ctx, R600_DECOMPRESS);
335 util_blitter_custom_color(rctx->blitter, cbsurf, blend_decompress);
336 r600_blitter_end(ctx);
337
338 pipe_surface_reference(&cbsurf, NULL);
339 }
340
341 /* The texture will always be dirty if some layers aren't flushed.
342 * I don't think this case occurs often though. */
343 if (first_layer == 0 && last_layer == max_layer) {
344 rtex->dirty_level_mask &= ~(1 << level);
345 }
346 }
347 }
348
349 void r600_decompress_color_textures(struct r600_context *rctx,
350 struct r600_samplerview_state *textures)
351 {
352 unsigned i;
353 unsigned mask = textures->compressed_colortex_mask;
354
355 while (mask) {
356 struct pipe_sampler_view *view;
357 struct r600_texture *tex;
358
359 i = u_bit_scan(&mask);
360
361 view = &textures->views[i]->base;
362 assert(view);
363
364 tex = (struct r600_texture *)view->texture;
365 assert(tex->cmask_size && tex->fmask_size);
366
367 r600_blit_decompress_color(&rctx->context, tex,
368 view->u.tex.first_level, view->u.tex.last_level,
369 0, u_max_layer(&tex->resource.b.b, view->u.tex.first_level));
370 }
371 }
372
373 /* Helper for decompressing a portion of a color or depth resource before
374 * blitting if any decompression is needed.
375 * The driver doesn't decompress resources automatically while u_blitter is
376 * rendering. */
377 static bool r600_decompress_subresource(struct pipe_context *ctx,
378 struct pipe_resource *tex,
379 unsigned level,
380 unsigned first_layer, unsigned last_layer)
381 {
382 struct r600_context *rctx = (struct r600_context *)ctx;
383 struct r600_texture *rtex = (struct r600_texture*)tex;
384
385 if (rtex->is_depth && !rtex->is_flushing_texture) {
386 if (rctx->chip_class >= EVERGREEN ||
387 r600_can_read_depth(rtex)) {
388 r600_blit_decompress_depth_in_place(rctx, rtex,
389 level, level,
390 first_layer, last_layer);
391 } else {
392 if (!r600_init_flushed_depth_texture(ctx, tex, NULL))
393 return false; /* error */
394
395 r600_blit_decompress_depth(ctx, rtex, NULL,
396 level, level,
397 first_layer, last_layer,
398 0, u_max_sample(tex));
399 }
400 } else if (rtex->fmask_size && rtex->cmask_size) {
401 r600_blit_decompress_color(ctx, rtex, level, level,
402 first_layer, last_layer);
403 }
404 return true;
405 }
406
407 static boolean is_simple_msaa_resolve(const struct pipe_blit_info *info)
408 {
409 unsigned dst_width = u_minify(info->dst.resource->width0, info->dst.level);
410 unsigned dst_height = u_minify(info->dst.resource->height0, info->dst.level);
411
412 return info->dst.resource->format == info->src.resource->format &&
413 info->dst.resource->format == info->dst.format &&
414 info->src.resource->format == info->src.format &&
415 !info->scissor_enable &&
416 info->mask == PIPE_MASK_RGBA &&
417 dst_width == info->src.resource->width0 &&
418 dst_height == info->src.resource->height0 &&
419 info->dst.box.x == 0 &&
420 info->dst.box.y == 0 &&
421 info->dst.box.width == dst_width &&
422 info->dst.box.height == dst_height &&
423 info->src.box.x == 0 &&
424 info->src.box.y == 0 &&
425 info->src.box.width == dst_width &&
426 info->src.box.height == dst_height;
427 }
428
429 static void r600_clear(struct pipe_context *ctx, unsigned buffers,
430 const union pipe_color_union *color,
431 double depth, unsigned stencil)
432 {
433 struct r600_context *rctx = (struct r600_context *)ctx;
434 struct pipe_framebuffer_state *fb = &rctx->framebuffer.state;
435
436 r600_blitter_begin(ctx, R600_CLEAR);
437 util_blitter_clear(rctx->blitter, fb->width, fb->height,
438 fb->nr_cbufs, buffers, fb->nr_cbufs ? fb->cbufs[0]->format : PIPE_FORMAT_NONE,
439 color, depth, stencil);
440 r600_blitter_end(ctx);
441 }
442
443 static void r600_clear_render_target(struct pipe_context *ctx,
444 struct pipe_surface *dst,
445 const union pipe_color_union *color,
446 unsigned dstx, unsigned dsty,
447 unsigned width, unsigned height)
448 {
449 struct r600_context *rctx = (struct r600_context *)ctx;
450
451 r600_blitter_begin(ctx, R600_CLEAR_SURFACE);
452 util_blitter_clear_render_target(rctx->blitter, dst, color,
453 dstx, dsty, width, height);
454 r600_blitter_end(ctx);
455 }
456
457 static void r600_clear_depth_stencil(struct pipe_context *ctx,
458 struct pipe_surface *dst,
459 unsigned clear_flags,
460 double depth,
461 unsigned stencil,
462 unsigned dstx, unsigned dsty,
463 unsigned width, unsigned height)
464 {
465 struct r600_context *rctx = (struct r600_context *)ctx;
466
467 r600_blitter_begin(ctx, R600_CLEAR_SURFACE);
468 util_blitter_clear_depth_stencil(rctx->blitter, dst, clear_flags, depth, stencil,
469 dstx, dsty, width, height);
470 r600_blitter_end(ctx);
471 }
472
473 void r600_copy_buffer(struct pipe_context *ctx, struct
474 pipe_resource *dst, unsigned dstx,
475 struct pipe_resource *src, const struct pipe_box *src_box)
476 {
477 struct r600_context *rctx = (struct r600_context*)ctx;
478
479 if (rctx->screen->has_streamout &&
480 /* Require dword alignment. */
481 dstx % 4 == 0 && src_box->x % 4 == 0 && src_box->width % 4 == 0) {
482 r600_blitter_begin(ctx, R600_COPY_BUFFER);
483 util_blitter_copy_buffer(rctx->blitter, dst, dstx, src, src_box->x, src_box->width);
484 r600_blitter_end(ctx);
485 } else {
486 util_resource_copy_region(ctx, dst, 0, dstx, 0, 0, src, 0, src_box);
487 }
488 }
489
490 static bool util_format_is_subsampled_2x1_32bpp(enum pipe_format format)
491 {
492 const struct util_format_description *desc = util_format_description(format);
493
494 return desc->layout == UTIL_FORMAT_LAYOUT_SUBSAMPLED &&
495 desc->block.width == 2 &&
496 desc->block.height == 1 &&
497 desc->block.bits == 32;
498 }
499
500 static void r600_resource_copy_region(struct pipe_context *ctx,
501 struct pipe_resource *dst,
502 unsigned dst_level,
503 unsigned dstx, unsigned dsty, unsigned dstz,
504 struct pipe_resource *src,
505 unsigned src_level,
506 const struct pipe_box *src_box)
507 {
508 struct r600_context *rctx = (struct r600_context *)ctx;
509 struct r600_texture *rsrc = (struct r600_texture*)src;
510 struct r600_texture *rdst = (struct r600_texture*)dst;
511 struct pipe_surface *dst_view, dst_templ;
512 struct pipe_sampler_view src_templ, *src_view;
513 unsigned dst_width, dst_height, src_width0, src_height0, src_widthFL, src_heightFL;
514 struct pipe_box sbox;
515 bool copy_all_samples;
516
517 /* Handle buffers first. */
518 if (dst->target == PIPE_BUFFER && src->target == PIPE_BUFFER) {
519 r600_copy_buffer(ctx, dst, dstx, src, src_box);
520 return;
521 }
522
523 assert(u_max_sample(dst) == u_max_sample(src));
524
525 /* The driver doesn't decompress resources automatically while
526 * u_blitter is rendering. */
527 if (!r600_decompress_subresource(ctx, src, src_level,
528 src_box->z, src_box->z + src_box->depth - 1)) {
529 return; /* error */
530 }
531
532 dst_width = rdst->surface.level[dst_level].npix_x;
533 dst_height = rdst->surface.level[dst_level].npix_y;
534 src_width0 = src->width0;
535 src_height0 = src->height0;
536 src_widthFL = rsrc->surface.level[src_level].npix_x;
537 src_heightFL = rsrc->surface.level[src_level].npix_y;
538
539 util_blitter_default_dst_texture(&dst_templ, dst, dst_level, dstz, src_box);
540 util_blitter_default_src_texture(&src_templ, src, src_level);
541
542 if (util_format_is_compressed(src->format)) {
543 unsigned blocksize = util_format_get_blocksize(src->format);
544
545 if (blocksize == 8)
546 src_templ.format = PIPE_FORMAT_R16G16B16A16_UINT; /* 64-bit block */
547 else
548 src_templ.format = PIPE_FORMAT_R32G32B32A32_UINT; /* 128-bit block */
549 dst_templ.format = src_templ.format;
550
551 dst_width = util_format_get_nblocksx(dst->format, rdst->surface.level[dst_level].npix_x);
552 dst_height = util_format_get_nblocksy(dst->format, rdst->surface.level[dst_level].npix_y);
553 src_width0 = util_format_get_nblocksx(src->format, src->width0);
554 src_height0 = util_format_get_nblocksy(src->format, src->height0);
555 src_widthFL = util_format_get_nblocksx(src->format, rsrc->surface.level[src_level].npix_x);
556 src_heightFL = util_format_get_nblocksy(src->format, rsrc->surface.level[src_level].npix_y);
557
558 dstx = util_format_get_nblocksx(dst->format, dstx);
559 dsty = util_format_get_nblocksy(dst->format, dsty);
560
561 sbox.x = util_format_get_nblocksx(src->format, src_box->x);
562 sbox.y = util_format_get_nblocksy(src->format, src_box->y);
563 sbox.z = src_box->z;
564 sbox.width = util_format_get_nblocksx(src->format, src_box->width);
565 sbox.height = util_format_get_nblocksy(src->format, src_box->height);
566 sbox.depth = src_box->depth;
567 src_box = &sbox;
568 } else if (!util_blitter_is_copy_supported(rctx->blitter, dst, src,
569 PIPE_MASK_RGBAZS)) {
570 if (util_format_is_subsampled_2x1_32bpp(src->format)) {
571
572 src_templ.format = PIPE_FORMAT_R8G8B8A8_UINT;
573 dst_templ.format = PIPE_FORMAT_R8G8B8A8_UINT;
574
575 dst_width = util_format_get_nblocksx(dst->format, rdst->surface.level[dst_level].npix_x);
576 src_width0 = util_format_get_nblocksx(src->format, src->width0);
577 src_widthFL = util_format_get_nblocksx(src->format, rsrc->surface.level[src_level].npix_x);
578
579 dstx = util_format_get_nblocksx(dst->format, dstx);
580
581 sbox = *src_box;
582 sbox.x = util_format_get_nblocksx(src->format, src_box->x);
583 sbox.width = util_format_get_nblocksx(src->format, src_box->width);
584 src_box = &sbox;
585 } else {
586 unsigned blocksize = util_format_get_blocksize(src->format);
587
588 switch (blocksize) {
589 case 1:
590 dst_templ.format = PIPE_FORMAT_R8_UNORM;
591 src_templ.format = PIPE_FORMAT_R8_UNORM;
592 break;
593 case 4:
594 dst_templ.format = PIPE_FORMAT_R8G8B8A8_UNORM;
595 src_templ.format = PIPE_FORMAT_R8G8B8A8_UNORM;
596 break;
597 default:
598 fprintf(stderr, "Unhandled format %s with blocksize %u\n",
599 util_format_short_name(src->format), blocksize);
600 assert(0);
601 }
602 }
603 }
604
605 dst_view = r600_create_surface_custom(ctx, dst, &dst_templ, dst_width, dst_height);
606
607 if (rctx->chip_class >= EVERGREEN) {
608 src_view = evergreen_create_sampler_view_custom(ctx, src, &src_templ,
609 src_width0, src_height0);
610 } else {
611 src_view = r600_create_sampler_view_custom(ctx, src, &src_templ,
612 src_widthFL, src_heightFL);
613 }
614
615 copy_all_samples = rctx->screen->msaa_texture_support != MSAA_TEXTURE_SAMPLE_ZERO;
616
617 /* Copy. */
618 r600_blitter_begin(ctx, R600_COPY_TEXTURE);
619 util_blitter_blit_generic(rctx->blitter, dst_view, dstx, dsty,
620 abs(src_box->width), abs(src_box->height),
621 src_view, src_box, src_width0, src_height0,
622 PIPE_MASK_RGBAZS, PIPE_TEX_FILTER_NEAREST, NULL,
623 copy_all_samples);
624 r600_blitter_end(ctx);
625
626 pipe_surface_reference(&dst_view, NULL);
627 pipe_sampler_view_reference(&src_view, NULL);
628 }
629
630 /* For MSAA integer resolving to work, we change the format to NORM using this function. */
631 static enum pipe_format int_to_norm_format(enum pipe_format format)
632 {
633 switch (format) {
634 #define REPLACE_FORMAT_SIGN(format,sign) \
635 case PIPE_FORMAT_##format##_##sign##INT: \
636 return PIPE_FORMAT_##format##_##sign##NORM
637 #define REPLACE_FORMAT(format) \
638 REPLACE_FORMAT_SIGN(format, U); \
639 REPLACE_FORMAT_SIGN(format, S)
640
641 REPLACE_FORMAT_SIGN(B10G10R10A2, U);
642 REPLACE_FORMAT(R8);
643 REPLACE_FORMAT(R8G8);
644 REPLACE_FORMAT(R8G8B8);
645 REPLACE_FORMAT(R8G8B8A8);
646 REPLACE_FORMAT(A8);
647 REPLACE_FORMAT(I8);
648 REPLACE_FORMAT(L8);
649 REPLACE_FORMAT(L8A8);
650 REPLACE_FORMAT(R16);
651 REPLACE_FORMAT(R16G16);
652 REPLACE_FORMAT(R16G16B16);
653 REPLACE_FORMAT(R16G16B16A16);
654 REPLACE_FORMAT(A16);
655 REPLACE_FORMAT(I16);
656 REPLACE_FORMAT(L16);
657 REPLACE_FORMAT(L16A16);
658
659 #undef REPLACE_FORMAT
660 #undef REPLACE_FORMAT_SIGN
661 default:
662 return format;
663 }
664 }
665
666 static void r600_msaa_color_resolve(struct pipe_context *ctx,
667 const struct pipe_blit_info *info)
668 {
669 struct r600_context *rctx = (struct r600_context *)ctx;
670 struct pipe_screen *screen = ctx->screen;
671 struct pipe_resource *tmp, templ;
672 struct pipe_blit_info blit;
673 unsigned sample_mask =
674 rctx->chip_class == CAYMAN ? ~0 :
675 ((1ull << MAX2(1, info->src.resource->nr_samples)) - 1);
676
677 assert(info->src.level == 0);
678 assert(info->src.box.depth == 1);
679 assert(info->dst.box.depth == 1);
680
681 if (is_simple_msaa_resolve(info)) {
682 r600_blitter_begin(ctx, R600_COLOR_RESOLVE);
683 util_blitter_custom_resolve_color(rctx->blitter,
684 info->dst.resource, info->dst.level,
685 info->dst.box.z,
686 info->src.resource, info->src.box.z,
687 sample_mask, rctx->custom_blend_resolve,
688 int_to_norm_format(info->dst.format));
689 r600_blitter_end(ctx);
690 return;
691 }
692
693 /* resolve into a temporary texture, then blit */
694 templ.target = PIPE_TEXTURE_2D;
695 templ.format = info->src.resource->format;
696 templ.width0 = info->src.resource->width0;
697 templ.height0 = info->src.resource->height0;
698 templ.depth0 = 1;
699 templ.array_size = 1;
700 templ.last_level = 0;
701 templ.nr_samples = 0;
702 templ.usage = PIPE_USAGE_STATIC;
703 templ.bind = PIPE_BIND_RENDER_TARGET | PIPE_BIND_SAMPLER_VIEW;
704 templ.flags = 0;
705
706 tmp = screen->resource_create(screen, &templ);
707
708 /* resolve */
709 r600_blitter_begin(ctx, R600_COLOR_RESOLVE);
710 util_blitter_custom_resolve_color(rctx->blitter,
711 tmp, 0, 0,
712 info->src.resource, info->src.box.z,
713 sample_mask, rctx->custom_blend_resolve,
714 int_to_norm_format(tmp->format));
715 r600_blitter_end(ctx);
716
717 /* blit */
718 blit = *info;
719 blit.src.resource = tmp;
720 blit.src.box.z = 0;
721
722 r600_blitter_begin(ctx, R600_BLIT);
723 util_blitter_blit(rctx->blitter, &blit);
724 r600_blitter_end(ctx);
725
726 pipe_resource_reference(&tmp, NULL);
727 }
728
729 static void r600_blit(struct pipe_context *ctx,
730 const struct pipe_blit_info *info)
731 {
732 struct r600_context *rctx = (struct r600_context*)ctx;
733
734 assert(util_blitter_is_blit_supported(rctx->blitter, info));
735
736 if (info->src.resource->nr_samples > 1 &&
737 info->dst.resource->nr_samples <= 1 &&
738 !util_format_is_depth_or_stencil(info->src.resource->format) &&
739 !util_format_is_pure_integer(int_to_norm_format(info->src.resource->format))) {
740 r600_msaa_color_resolve(ctx, info);
741 return;
742 }
743
744 /* The driver doesn't decompress resources automatically while
745 * u_blitter is rendering. */
746 if (!r600_decompress_subresource(ctx, info->src.resource, info->src.level,
747 info->src.box.z,
748 info->src.box.z + info->src.box.depth - 1)) {
749 return; /* error */
750 }
751
752 r600_blitter_begin(ctx, R600_BLIT);
753 util_blitter_blit(rctx->blitter, info);
754 r600_blitter_end(ctx);
755 }
756
757 void r600_init_blit_functions(struct r600_context *rctx)
758 {
759 rctx->context.clear = r600_clear;
760 rctx->context.clear_render_target = r600_clear_render_target;
761 rctx->context.clear_depth_stencil = r600_clear_depth_stencil;
762 rctx->context.resource_copy_region = r600_resource_copy_region;
763 rctx->context.blit = r600_blit;
764 }