1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
846
847
848
849
850
851
852
853
854
855
856
857
858
859
860
861
862
863
864
865
866
867
868
|
/*
* Copyright 2009 Marek Olšák <maraeo@gmail.com>
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* on the rights to use, copy, modify, merge, publish, distribute, sub
* license, and/or sell copies of the Software, and to permit persons to whom
* the Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice (including the next
* paragraph) shall be included in all copies or substantial portions of the
* Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
* THE AUTHOR(S) AND/OR THEIR SUPPLIERS BE LIABLE FOR ANY CLAIM,
* DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
* OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
* USE OR OTHER DEALINGS IN THE SOFTWARE. */
#include "r300_context.h"
#include "r300_emit.h"
#include "r300_texture.h"
#include "r300_reg.h"
#include "util/u_format.h"
#include "util/u_half.h"
#include "util/u_pack_color.h"
#include "util/u_surface.h"
enum r300_blitter_op /* bitmask */
{
R300_STOP_QUERY = 1,
R300_SAVE_TEXTURES = 2,
R300_SAVE_FRAMEBUFFER = 4,
R300_IGNORE_RENDER_COND = 8,
R300_CLEAR = R300_STOP_QUERY,
R300_CLEAR_SURFACE = R300_STOP_QUERY | R300_SAVE_FRAMEBUFFER,
R300_COPY = R300_STOP_QUERY | R300_SAVE_FRAMEBUFFER |
R300_SAVE_TEXTURES | R300_IGNORE_RENDER_COND,
R300_BLIT = R300_STOP_QUERY | R300_SAVE_FRAMEBUFFER |
R300_SAVE_TEXTURES,
R300_DECOMPRESS = R300_STOP_QUERY | R300_IGNORE_RENDER_COND,
};
static void r300_blitter_begin(struct r300_context* r300, enum r300_blitter_op op)
{
if ((op & R300_STOP_QUERY) && r300->query_current) {
r300->blitter_saved_query = r300->query_current;
r300_stop_query(r300);
}
/* Yeah we have to save all those states to ensure the blitter operation
* is really transparent. The states will be restored by the blitter once
* copying is done. */
util_blitter_save_blend(r300->blitter, r300->blend_state.state);
util_blitter_save_depth_stencil_alpha(r300->blitter, r300->dsa_state.state);
util_blitter_save_stencil_ref(r300->blitter, &(r300->stencil_ref));
util_blitter_save_rasterizer(r300->blitter, r300->rs_state.state);
util_blitter_save_fragment_shader(r300->blitter, r300->fs.state);
util_blitter_save_vertex_shader(r300->blitter, r300->vs_state.state);
util_blitter_save_viewport(r300->blitter, &r300->viewport);
util_blitter_save_scissor(r300->blitter, r300->scissor_state.state);
util_blitter_save_sample_mask(r300->blitter, *(unsigned*)r300->sample_mask.state);
util_blitter_save_vertex_buffer_slot(r300->blitter, r300->vertex_buffer);
util_blitter_save_vertex_elements(r300->blitter, r300->velems);
if (op & R300_SAVE_FRAMEBUFFER) {
util_blitter_save_framebuffer(r300->blitter, r300->fb_state.state);
}
if (op & R300_SAVE_TEXTURES) {
struct r300_textures_state* state =
(struct r300_textures_state*)r300->textures_state.state;
util_blitter_save_fragment_sampler_states(
r300->blitter, state->sampler_state_count,
(void**)state->sampler_states);
util_blitter_save_fragment_sampler_views(
r300->blitter, state->sampler_view_count,
(struct pipe_sampler_view**)state->sampler_views);
}
if (op & R300_IGNORE_RENDER_COND) {
/* Save the flag. */
r300->blitter_saved_skip_rendering = r300->skip_rendering+1;
r300->skip_rendering = FALSE;
} else {
r300->blitter_saved_skip_rendering = 0;
}
}
static void r300_blitter_end(struct r300_context *r300)
{
if (r300->blitter_saved_query) {
r300_resume_query(r300, r300->blitter_saved_query);
r300->blitter_saved_query = NULL;
}
if (r300->blitter_saved_skip_rendering) {
/* Restore the flag. */
r300->skip_rendering = r300->blitter_saved_skip_rendering-1;
}
}
static uint32_t r300_depth_clear_cb_value(enum pipe_format format,
const float* rgba)
{
union util_color uc;
util_pack_color(rgba, format, &uc);
if (util_format_get_blocksizebits(format) == 32)
return uc.ui[0];
else
return uc.us | (uc.us << 16);
}
static boolean r300_cbzb_clear_allowed(struct r300_context *r300,
unsigned clear_buffers)
{
struct pipe_framebuffer_state *fb =
(struct pipe_framebuffer_state*)r300->fb_state.state;
/* Only color clear allowed, and only one colorbuffer. */
if ((clear_buffers & ~PIPE_CLEAR_COLOR) != 0 || fb->nr_cbufs != 1 || !fb->cbufs[0])
return FALSE;
return r300_surface(fb->cbufs[0])->cbzb_allowed;
}
static boolean r300_fast_zclear_allowed(struct r300_context *r300,
unsigned clear_buffers)
{
struct pipe_framebuffer_state *fb =
(struct pipe_framebuffer_state*)r300->fb_state.state;
return r300_resource(fb->zsbuf->texture)->tex.zmask_dwords[fb->zsbuf->u.tex.level] != 0;
}
static boolean r300_hiz_clear_allowed(struct r300_context *r300)
{
struct pipe_framebuffer_state *fb =
(struct pipe_framebuffer_state*)r300->fb_state.state;
return r300_resource(fb->zsbuf->texture)->tex.hiz_dwords[fb->zsbuf->u.tex.level] != 0;
}
static uint32_t r300_depth_clear_value(enum pipe_format format,
double depth, unsigned stencil)
{
switch (format) {
case PIPE_FORMAT_Z16_UNORM:
case PIPE_FORMAT_X8Z24_UNORM:
return util_pack_z(format, depth);
case PIPE_FORMAT_S8_UINT_Z24_UNORM:
return util_pack_z_stencil(format, depth, stencil);
default:
assert(0);
return 0;
}
}
static uint32_t r300_hiz_clear_value(double depth)
{
uint32_t r = (uint32_t)(CLAMP(depth, 0, 1) * 255.5);
assert(r <= 255);
return r | (r << 8) | (r << 16) | (r << 24);
}
static void r300_set_clear_color(struct r300_context *r300,
const union pipe_color_union *color)
{
struct pipe_framebuffer_state *fb =
(struct pipe_framebuffer_state*)r300->fb_state.state;
union util_color uc;
memset(&uc, 0, sizeof(uc));
util_pack_color(color->f, fb->cbufs[0]->format, &uc);
if (fb->cbufs[0]->format == PIPE_FORMAT_R16G16B16A16_FLOAT ||
fb->cbufs[0]->format == PIPE_FORMAT_R16G16B16X16_FLOAT) {
/* (0,1,2,3) maps to (B,G,R,A) */
r300->color_clear_value_gb = uc.h[0] | ((uint32_t)uc.h[1] << 16);
r300->color_clear_value_ar = uc.h[2] | ((uint32_t)uc.h[3] << 16);
} else {
r300->color_clear_value = uc.ui[0];
}
}
DEBUG_GET_ONCE_BOOL_OPTION(hyperz, "RADEON_HYPERZ", FALSE)
/* Clear currently bound buffers. */
static void r300_clear(struct pipe_context* pipe,
unsigned buffers,
const union pipe_color_union *color,
double depth,
unsigned stencil)
{
/* My notes about Zbuffer compression:
*
* 1) The zbuffer must be micro-tiled and whole microtiles must be
* written if compression is enabled. If microtiling is disabled,
* it locks up.
*
* 2) There is ZMASK RAM which contains a compressed zbuffer.
* Each dword of the Z Mask contains compression information
* for 16 4x4 pixel tiles, that is 2 bits for each tile.
* On chips with 2 Z pipes, every other dword maps to a different
* pipe. On newer chipsets, there is a new compression mode
* with 8x8 pixel tiles per 2 bits.
*
* 3) The FASTFILL bit has nothing to do with filling. It only tells hw
* it should look in the ZMASK RAM first before fetching from a real
* zbuffer.
*
* 4) If a pixel is in a cleared state, ZB_DEPTHCLEARVALUE is returned
* during zbuffer reads instead of the value that is actually stored
* in the zbuffer memory. A pixel is in a cleared state when its ZMASK
* is equal to 0. Therefore, if you clear ZMASK with zeros, you may
* leave the zbuffer memory uninitialized, but then you must enable
* compression, so that the ZMASK RAM is actually used.
*
* 5) Each 4x4 (or 8x8) tile is automatically decompressed and recompressed
* during zbuffer updates. A special decompressing operation should be
* used to fully decompress a zbuffer, which basically just stores all
* compressed tiles in ZMASK to the zbuffer memory.
*
* 6) For a 16-bit zbuffer, compression causes a hung with one or
* two samples and should not be used.
*
* 7) FORCE_COMPRESSED_STENCIL_VALUE should be enabled for stencil clears
* to avoid needless decompression.
*
* 8) Fastfill must not be used if reading of compressed Z data is disabled
* and writing of compressed Z data is enabled (RD/WR_COMP_ENABLE),
* i.e. it cannot be used to compress the zbuffer.
*
* 9) ZB_CB_CLEAR does not interact with zbuffer compression in any way.
*
* - Marek
*/
struct r300_context* r300 = r300_context(pipe);
struct pipe_framebuffer_state *fb =
(struct pipe_framebuffer_state*)r300->fb_state.state;
struct r300_hyperz_state *hyperz =
(struct r300_hyperz_state*)r300->hyperz_state.state;
uint32_t width = fb->width;
uint32_t height = fb->height;
uint32_t hyperz_dcv = hyperz->zb_depthclearvalue;
/* Use fast Z clear.
* The zbuffer must be in micro-tiled mode, otherwise it locks up. */
if (buffers & PIPE_CLEAR_DEPTHSTENCIL) {
boolean zmask_clear, hiz_clear;
/* If both depth and stencil are present, they must be cleared together. */
if (fb->zsbuf->texture->format == PIPE_FORMAT_S8_UINT_Z24_UNORM &&
(buffers & PIPE_CLEAR_DEPTHSTENCIL) != PIPE_CLEAR_DEPTHSTENCIL) {
zmask_clear = FALSE;
hiz_clear = FALSE;
} else {
zmask_clear = r300_fast_zclear_allowed(r300, buffers);
hiz_clear = r300_hiz_clear_allowed(r300);
}
/* If we need Hyper-Z. */
if (zmask_clear || hiz_clear) {
/* Try to obtain the access to Hyper-Z buffers if we don't have one. */
if (!r300->hyperz_enabled &&
(r300->screen->caps.is_r500 || debug_get_option_hyperz())) {
r300->hyperz_enabled =
r300->rws->cs_request_feature(r300->cs,
RADEON_FID_R300_HYPERZ_ACCESS,
TRUE);
if (r300->hyperz_enabled) {
/* Need to emit HyperZ buffer regs for the first time. */
r300_mark_fb_state_dirty(r300, R300_CHANGED_HYPERZ_FLAG);
}
}
/* Setup Hyper-Z clears. */
if (r300->hyperz_enabled) {
if (zmask_clear) {
hyperz_dcv = hyperz->zb_depthclearvalue =
r300_depth_clear_value(fb->zsbuf->format, depth, stencil);
r300_mark_atom_dirty(r300, &r300->zmask_clear);
r300_mark_atom_dirty(r300, &r300->gpu_flush);
buffers &= ~PIPE_CLEAR_DEPTHSTENCIL;
}
if (hiz_clear) {
r300->hiz_clear_value = r300_hiz_clear_value(depth);
r300_mark_atom_dirty(r300, &r300->hiz_clear);
r300_mark_atom_dirty(r300, &r300->gpu_flush);
}
r300->num_z_clears++;
}
}
}
/* Use fast color clear for an AA colorbuffer.
* The CMASK is shared between all colorbuffers, so we use it
* if there is only one colorbuffer bound. */
if ((buffers & PIPE_CLEAR_COLOR) && fb->nr_cbufs == 1 && fb->cbufs[0] &&
r300_resource(fb->cbufs[0]->texture)->tex.cmask_dwords) {
/* Try to obtain the access to the CMASK if we don't have one. */
if (!r300->cmask_access) {
r300->cmask_access =
r300->rws->cs_request_feature(r300->cs,
RADEON_FID_R300_CMASK_ACCESS,
TRUE);
}
/* Setup the clear. */
if (r300->cmask_access) {
/* Pair the resource with the CMASK to avoid other resources
* accessing it. */
if (!r300->screen->cmask_resource) {
pipe_mutex_lock(r300->screen->cmask_mutex);
/* Double checking (first unlocked, then locked). */
if (!r300->screen->cmask_resource) {
/* Don't reference this, so that the texture can be
* destroyed while set in cmask_resource.
* Then in texture_destroy, we set cmask_resource to NULL. */
r300->screen->cmask_resource = fb->cbufs[0]->texture;
}
pipe_mutex_unlock(r300->screen->cmask_mutex);
}
if (r300->screen->cmask_resource == fb->cbufs[0]->texture) {
r300_set_clear_color(r300, color);
r300_mark_atom_dirty(r300, &r300->cmask_clear);
r300_mark_atom_dirty(r300, &r300->gpu_flush);
buffers &= ~PIPE_CLEAR_COLOR;
}
}
}
/* Enable CBZB clear. */
else if (r300_cbzb_clear_allowed(r300, buffers)) {
struct r300_surface *surf = r300_surface(fb->cbufs[0]);
hyperz->zb_depthclearvalue =
r300_depth_clear_cb_value(surf->base.format, color->f);
width = surf->cbzb_width;
height = surf->cbzb_height;
r300->cbzb_clear = TRUE;
r300_mark_fb_state_dirty(r300, R300_CHANGED_HYPERZ_FLAG);
}
/* Clear. */
if (buffers) {
/* Clear using the blitter. */
r300_blitter_begin(r300, R300_CLEAR);
util_blitter_clear(r300->blitter, width, height, 1,
buffers, color, depth, stencil);
r300_blitter_end(r300);
} else if (r300->zmask_clear.dirty ||
r300->hiz_clear.dirty ||
r300->cmask_clear.dirty) {
/* Just clear zmask and hiz now, this does not use the standard draw
* procedure. */
/* Calculate zmask_clear and hiz_clear atom sizes. */
unsigned dwords =
r300->gpu_flush.size +
(r300->zmask_clear.dirty ? r300->zmask_clear.size : 0) +
(r300->hiz_clear.dirty ? r300->hiz_clear.size : 0) +
(r300->cmask_clear.dirty ? r300->cmask_clear.size : 0) +
r300_get_num_cs_end_dwords(r300);
/* Reserve CS space. */
if (dwords > (RADEON_MAX_CMDBUF_DWORDS - r300->cs->cdw)) {
r300_flush(&r300->context, RADEON_FLUSH_ASYNC, NULL);
}
/* Emit clear packets. */
r300_emit_gpu_flush(r300, r300->gpu_flush.size, r300->gpu_flush.state);
r300->gpu_flush.dirty = FALSE;
if (r300->zmask_clear.dirty) {
r300_emit_zmask_clear(r300, r300->zmask_clear.size,
r300->zmask_clear.state);
r300->zmask_clear.dirty = FALSE;
}
if (r300->hiz_clear.dirty) {
r300_emit_hiz_clear(r300, r300->hiz_clear.size,
r300->hiz_clear.state);
r300->hiz_clear.dirty = FALSE;
}
if (r300->cmask_clear.dirty) {
r300_emit_cmask_clear(r300, r300->cmask_clear.size,
r300->cmask_clear.state);
r300->cmask_clear.dirty = FALSE;
}
} else {
assert(0);
}
/* Disable CBZB clear. */
if (r300->cbzb_clear) {
r300->cbzb_clear = FALSE;
hyperz->zb_depthclearvalue = hyperz_dcv;
r300_mark_fb_state_dirty(r300, R300_CHANGED_HYPERZ_FLAG);
}
/* Enable fastfill and/or hiz.
*
* If we cleared zmask/hiz, it's in use now. The Hyper-Z state update
* looks if zmask/hiz is in use and programs hardware accordingly. */
if (r300->zmask_in_use || r300->hiz_in_use) {
r300_mark_atom_dirty(r300, &r300->hyperz_state);
}
}
/* Clear a region of a color surface to a constant value. */
static void r300_clear_render_target(struct pipe_context *pipe,
struct pipe_surface *dst,
const union pipe_color_union *color,
unsigned dstx, unsigned dsty,
unsigned width, unsigned height)
{
struct r300_context *r300 = r300_context(pipe);
r300_blitter_begin(r300, R300_CLEAR_SURFACE);
util_blitter_clear_render_target(r300->blitter, dst, color,
dstx, dsty, width, height);
r300_blitter_end(r300);
}
/* Clear a region of a depth stencil surface. */
static void r300_clear_depth_stencil(struct pipe_context *pipe,
struct pipe_surface *dst,
unsigned clear_flags,
double depth,
unsigned stencil,
unsigned dstx, unsigned dsty,
unsigned width, unsigned height)
{
struct r300_context *r300 = r300_context(pipe);
struct pipe_framebuffer_state *fb =
(struct pipe_framebuffer_state*)r300->fb_state.state;
if (r300->zmask_in_use && !r300->locked_zbuffer) {
if (fb->zsbuf->texture == dst->texture) {
r300_decompress_zmask(r300);
}
}
/* XXX Do not decompress ZMask of the currently-set zbuffer. */
r300_blitter_begin(r300, R300_CLEAR_SURFACE);
util_blitter_clear_depth_stencil(r300->blitter, dst, clear_flags, depth, stencil,
dstx, dsty, width, height);
r300_blitter_end(r300);
}
void r300_decompress_zmask(struct r300_context *r300)
{
struct pipe_framebuffer_state *fb =
(struct pipe_framebuffer_state*)r300->fb_state.state;
if (!r300->zmask_in_use || r300->locked_zbuffer)
return;
r300->zmask_decompress = TRUE;
r300_mark_atom_dirty(r300, &r300->hyperz_state);
r300_blitter_begin(r300, R300_DECOMPRESS);
util_blitter_custom_clear_depth(r300->blitter, fb->width, fb->height, 0,
r300->dsa_decompress_zmask);
r300_blitter_end(r300);
r300->zmask_decompress = FALSE;
r300->zmask_in_use = FALSE;
r300_mark_atom_dirty(r300, &r300->hyperz_state);
}
void r300_decompress_zmask_locked_unsafe(struct r300_context *r300)
{
struct pipe_framebuffer_state fb;
memset(&fb, 0, sizeof(fb));
fb.width = r300->locked_zbuffer->width;
fb.height = r300->locked_zbuffer->height;
fb.zsbuf = r300->locked_zbuffer;
r300->context.set_framebuffer_state(&r300->context, &fb);
r300_decompress_zmask(r300);
}
void r300_decompress_zmask_locked(struct r300_context *r300)
{
struct pipe_framebuffer_state saved_fb;
memset(&saved_fb, 0, sizeof(saved_fb));
util_copy_framebuffer_state(&saved_fb, r300->fb_state.state);
r300_decompress_zmask_locked_unsafe(r300);
r300->context.set_framebuffer_state(&r300->context, &saved_fb);
util_unreference_framebuffer_state(&saved_fb);
pipe_surface_reference(&r300->locked_zbuffer, NULL);
}
bool r300_is_blit_supported(enum pipe_format format)
{
const struct util_format_description *desc =
util_format_description(format);
return desc->layout == UTIL_FORMAT_LAYOUT_PLAIN ||
desc->layout == UTIL_FORMAT_LAYOUT_S3TC ||
desc->layout == UTIL_FORMAT_LAYOUT_RGTC;
}
/* Copy a block of pixels from one surface to another. */
static void r300_resource_copy_region(struct pipe_context *pipe,
struct pipe_resource *dst,
unsigned dst_level,
unsigned dstx, unsigned dsty, unsigned dstz,
struct pipe_resource *src,
unsigned src_level,
const struct pipe_box *src_box)
{
struct pipe_screen *screen = pipe->screen;
struct r300_context *r300 = r300_context(pipe);
struct pipe_framebuffer_state *fb =
(struct pipe_framebuffer_state*)r300->fb_state.state;
unsigned src_width0 = r300_resource(src)->tex.width0;
unsigned src_height0 = r300_resource(src)->tex.height0;
unsigned dst_width0 = r300_resource(dst)->tex.width0;
unsigned dst_height0 = r300_resource(dst)->tex.height0;
unsigned layout;
struct pipe_box box, dstbox;
struct pipe_sampler_view src_templ, *src_view;
struct pipe_surface dst_templ, *dst_view;
/* Fallback for buffers. */
if ((dst->target == PIPE_BUFFER && src->target == PIPE_BUFFER) ||
!r300_is_blit_supported(dst->format)) {
util_resource_copy_region(pipe, dst, dst_level, dstx, dsty, dstz,
src, src_level, src_box);
return;
}
/* Can't read MSAA textures. */
if (src->nr_samples > 1 || dst->nr_samples > 1) {
return;
}
/* The code below changes the texture format so that the copy can be done
* on hardware. E.g. depth-stencil surfaces are copied as RGBA
* colorbuffers. */
util_blitter_default_dst_texture(&dst_templ, dst, dst_level, dstz);
util_blitter_default_src_texture(&src_templ, src, src_level);
layout = util_format_description(dst_templ.format)->layout;
/* Handle non-renderable plain formats. */
if (layout == UTIL_FORMAT_LAYOUT_PLAIN &&
(!screen->is_format_supported(screen, src_templ.format, src->target,
src->nr_samples,
PIPE_BIND_SAMPLER_VIEW) ||
!screen->is_format_supported(screen, dst_templ.format, dst->target,
dst->nr_samples,
PIPE_BIND_RENDER_TARGET))) {
switch (util_format_get_blocksize(dst_templ.format)) {
case 1:
dst_templ.format = PIPE_FORMAT_I8_UNORM;
break;
case 2:
dst_templ.format = PIPE_FORMAT_B4G4R4A4_UNORM;
break;
case 4:
dst_templ.format = PIPE_FORMAT_B8G8R8A8_UNORM;
break;
case 8:
dst_templ.format = PIPE_FORMAT_R16G16B16A16_UNORM;
break;
default:
debug_printf("r300: copy_region: Unhandled format: %s. Falling back to software.\n"
"r300: copy_region: Software fallback doesn't work for tiled textures.\n",
util_format_short_name(dst_templ.format));
}
src_templ.format = dst_templ.format;
}
/* Handle compressed formats. */
if (layout == UTIL_FORMAT_LAYOUT_S3TC ||
layout == UTIL_FORMAT_LAYOUT_RGTC) {
assert(src_templ.format == dst_templ.format);
box = *src_box;
src_box = &box;
dst_width0 = align(dst_width0, 4);
dst_height0 = align(dst_height0, 4);
src_width0 = align(src_width0, 4);
src_height0 = align(src_height0, 4);
box.width = align(box.width, 4);
box.height = align(box.height, 4);
switch (util_format_get_blocksize(dst_templ.format)) {
case 8:
/* one 4x4 pixel block has 8 bytes.
* we set 1 pixel = 4 bytes ===> 1 block corrensponds to 2 pixels. */
dst_templ.format = PIPE_FORMAT_R8G8B8A8_UNORM;
dst_width0 = dst_width0 / 2;
src_width0 = src_width0 / 2;
dstx /= 2;
box.x /= 2;
box.width /= 2;
break;
case 16:
/* one 4x4 pixel block has 16 bytes.
* we set 1 pixel = 4 bytes ===> 1 block corresponds to 4 pixels. */
dst_templ.format = PIPE_FORMAT_R8G8B8A8_UNORM;
break;
}
src_templ.format = dst_templ.format;
dst_height0 = dst_height0 / 4;
src_height0 = src_height0 / 4;
dsty /= 4;
box.y /= 4;
box.height /= 4;
}
/* Fallback for textures. */
if (!screen->is_format_supported(screen, dst_templ.format,
dst->target, dst->nr_samples,
PIPE_BIND_RENDER_TARGET) ||
!screen->is_format_supported(screen, src_templ.format,
src->target, src->nr_samples,
PIPE_BIND_SAMPLER_VIEW)) {
assert(0 && "this shouldn't happen, update r300_is_blit_supported");
util_resource_copy_region(pipe, dst, dst_level, dstx, dsty, dstz,
src, src_level, src_box);
return;
}
/* Decompress ZMASK. */
if (r300->zmask_in_use && !r300->locked_zbuffer) {
if (fb->zsbuf->texture == src ||
fb->zsbuf->texture == dst) {
r300_decompress_zmask(r300);
}
}
dst_view = r300_create_surface_custom(pipe, dst, &dst_templ, dst_width0, dst_height0);
src_view = r300_create_sampler_view_custom(pipe, src, &src_templ, src_width0, src_height0);
u_box_3d(dstx, dsty, dstz, abs(src_box->width), abs(src_box->height),
abs(src_box->depth), &dstbox);
r300_blitter_begin(r300, R300_COPY);
util_blitter_blit_generic(r300->blitter, dst_view, &dstbox,
src_view, src_box, src_width0, src_height0,
PIPE_MASK_RGBAZS, PIPE_TEX_FILTER_NEAREST, NULL);
r300_blitter_end(r300);
pipe_surface_reference(&dst_view, NULL);
pipe_sampler_view_reference(&src_view, NULL);
}
static boolean r300_is_simple_msaa_resolve(const struct pipe_blit_info *info)
{
unsigned dst_width = u_minify(info->dst.resource->width0, info->dst.level);
unsigned dst_height = u_minify(info->dst.resource->height0, info->dst.level);
return info->src.resource->nr_samples > 1 &&
info->dst.resource->nr_samples <= 1 &&
info->dst.resource->format == info->src.resource->format &&
info->dst.resource->format == info->dst.format &&
info->src.resource->format == info->src.format &&
!info->scissor_enable &&
info->mask == PIPE_MASK_RGBA &&
dst_width == info->src.resource->width0 &&
dst_height == info->src.resource->height0 &&
info->dst.box.x == 0 &&
info->dst.box.y == 0 &&
info->dst.box.width == dst_width &&
info->dst.box.height == dst_height &&
info->src.box.x == 0 &&
info->src.box.y == 0 &&
info->src.box.width == dst_width &&
info->src.box.height == dst_height &&
(r300_resource(info->dst.resource)->tex.microtile != RADEON_LAYOUT_LINEAR ||
r300_resource(info->dst.resource)->tex.macrotile[info->dst.level] != RADEON_LAYOUT_LINEAR);
}
static void r300_simple_msaa_resolve(struct pipe_context *pipe,
struct pipe_resource *dst,
unsigned dst_level,
unsigned dst_layer,
struct pipe_resource *src,
enum pipe_format format)
{
struct r300_context *r300 = r300_context(pipe);
struct r300_surface *srcsurf, *dstsurf;
struct pipe_surface surf_tmpl;
struct r300_aa_state *aa = (struct r300_aa_state*)r300->aa_state.state;
memset(&surf_tmpl, 0, sizeof(surf_tmpl));
surf_tmpl.format = format;
srcsurf = r300_surface(pipe->create_surface(pipe, src, &surf_tmpl));
surf_tmpl.format = format;
surf_tmpl.u.tex.level = dst_level;
surf_tmpl.u.tex.first_layer =
surf_tmpl.u.tex.last_layer = dst_layer;
dstsurf = r300_surface(pipe->create_surface(pipe, dst, &surf_tmpl));
/* COLORPITCH should contain the tiling info of the resolve buffer.
* The tiling of the AA buffer isn't programmable anyway. */
srcsurf->pitch &= ~(R300_COLOR_TILE(1) | R300_COLOR_MICROTILE(3));
srcsurf->pitch |= dstsurf->pitch & (R300_COLOR_TILE(1) | R300_COLOR_MICROTILE(3));
/* Enable AA resolve. */
aa->dest = dstsurf;
r300->aa_state.size = 8;
r300_mark_atom_dirty(r300, &r300->aa_state);
/* Resolve the surface. */
r300_blitter_begin(r300, R300_CLEAR_SURFACE);
util_blitter_custom_color(r300->blitter, &srcsurf->base, NULL);
r300_blitter_end(r300);
/* Disable AA resolve. */
aa->dest = NULL;
r300->aa_state.size = 4;
r300_mark_atom_dirty(r300, &r300->aa_state);
pipe_surface_reference((struct pipe_surface**)&srcsurf, NULL);
pipe_surface_reference((struct pipe_surface**)&dstsurf, NULL);
}
static void r300_msaa_resolve(struct pipe_context *pipe,
const struct pipe_blit_info *info)
{
struct r300_context *r300 = r300_context(pipe);
struct pipe_screen *screen = pipe->screen;
struct pipe_resource *tmp, templ;
struct pipe_blit_info blit;
assert(info->src.level == 0);
assert(info->src.box.z == 0);
assert(info->src.box.depth == 1);
assert(info->dst.box.depth == 1);
if (r300_is_simple_msaa_resolve(info)) {
r300_simple_msaa_resolve(pipe, info->dst.resource, info->dst.level,
info->dst.box.z, info->src.resource,
info->src.format);
return;
}
/* resolve into a temporary texture, then blit */
memset(&templ, 0, sizeof(templ));
templ.target = PIPE_TEXTURE_2D;
templ.format = info->src.resource->format;
templ.width0 = info->src.resource->width0;
templ.height0 = info->src.resource->height0;
templ.depth0 = 1;
templ.array_size = 1;
templ.usage = PIPE_USAGE_DEFAULT;
templ.flags = R300_RESOURCE_FORCE_MICROTILING;
tmp = screen->resource_create(screen, &templ);
/* resolve */
r300_simple_msaa_resolve(pipe, tmp, 0, 0, info->src.resource,
info->src.format);
/* blit */
blit = *info;
blit.src.resource = tmp;
blit.src.box.z = 0;
r300_blitter_begin(r300, R300_BLIT | R300_IGNORE_RENDER_COND);
util_blitter_blit(r300->blitter, &blit);
r300_blitter_end(r300);
pipe_resource_reference(&tmp, NULL);
}
static void r300_blit(struct pipe_context *pipe,
const struct pipe_blit_info *blit)
{
struct r300_context *r300 = r300_context(pipe);
struct pipe_framebuffer_state *fb =
(struct pipe_framebuffer_state*)r300->fb_state.state;
struct pipe_blit_info info = *blit;
/* MSAA resolve. */
if (info.src.resource->nr_samples > 1 &&
!util_format_is_depth_or_stencil(info.src.resource->format)) {
r300_msaa_resolve(pipe, &info);
return;
}
/* Can't read MSAA textures. */
if (info.src.resource->nr_samples > 1) {
return;
}
/* Blit a combined depth-stencil resource as color.
* S8Z24 is the only supported stencil format. */
if ((info.mask & PIPE_MASK_S) &&
info.src.format == PIPE_FORMAT_S8_UINT_Z24_UNORM &&
info.dst.format == PIPE_FORMAT_S8_UINT_Z24_UNORM) {
if (info.dst.resource->nr_samples > 1) {
/* Cannot do that with MSAA buffers. */
info.mask &= ~PIPE_MASK_S;
if (!(info.mask & PIPE_MASK_Z)) {
return;
}
} else {
/* Single-sample buffer. */
info.src.format = PIPE_FORMAT_B8G8R8A8_UNORM;
info.dst.format = PIPE_FORMAT_B8G8R8A8_UNORM;
if (info.mask & PIPE_MASK_Z) {
info.mask = PIPE_MASK_RGBA; /* depth+stencil */
} else {
info.mask = PIPE_MASK_B; /* stencil only */
}
}
}
/* Decompress ZMASK. */
if (r300->zmask_in_use && !r300->locked_zbuffer) {
if (fb->zsbuf->texture == info.src.resource ||
fb->zsbuf->texture == info.dst.resource) {
r300_decompress_zmask(r300);
}
}
r300_blitter_begin(r300, R300_BLIT |
(info.render_condition_enable ? 0 : R300_IGNORE_RENDER_COND));
util_blitter_blit(r300->blitter, &info);
r300_blitter_end(r300);
}
static void r300_flush_resource(struct pipe_context *ctx,
struct pipe_resource *resource)
{
}
void r300_init_blit_functions(struct r300_context *r300)
{
r300->context.clear = r300_clear;
r300->context.clear_render_target = r300_clear_render_target;
r300->context.clear_depth_stencil = r300_clear_depth_stencil;
r300->context.resource_copy_region = r300_resource_copy_region;
r300->context.blit = r300_blit;
r300->context.flush_resource = r300_flush_resource;
}
|