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
|
/**************************************************************************
*
* Copyright 2003 Tungsten Graphics, Inc., Cedar Park, Texas.
* All Rights Reserved.
*
* 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 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 TUNGSTEN GRAPHICS AND/OR ITS 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 <stdio.h>
#include <errno.h>
#include "mtypes.h"
#include "context.h"
#include "enums.h"
#include "vblank.h"
#include "intel_reg.h"
#include "intel_batchbuffer.h"
#include "intel_context.h"
/* ================================================================
* Performance monitoring functions
*/
static void intel_fill_box( intelContextPtr intel,
GLshort x, GLshort y,
GLshort w, GLshort h,
GLubyte r, GLubyte g, GLubyte b )
{
x += intel->drawX;
y += intel->drawY;
if (x >= 0 && y >= 0 &&
x+w < intel->intelScreen->width &&
y+h < intel->intelScreen->height)
intelEmitFillBlitLocked( intel,
intel->intelScreen->cpp,
intel->intelScreen->back.pitch,
intel->intelScreen->back.offset,
x, y, w, h,
INTEL_PACKCOLOR(intel->intelScreen->fbFormat,
r,g,b,0xff));
}
static void intel_draw_performance_boxes( intelContextPtr intel )
{
/* Purple box for page flipping
*/
if ( intel->perf_boxes & I830_BOX_FLIP )
intel_fill_box( intel, 4, 4, 8, 8, 255, 0, 255 );
/* Red box if we have to wait for idle at any point
*/
if ( intel->perf_boxes & I830_BOX_WAIT )
intel_fill_box( intel, 16, 4, 8, 8, 255, 0, 0 );
/* Blue box: lost context?
*/
if ( intel->perf_boxes & I830_BOX_LOST_CONTEXT )
intel_fill_box( intel, 28, 4, 8, 8, 0, 0, 255 );
/* Yellow box for texture swaps
*/
if ( intel->perf_boxes & I830_BOX_TEXTURE_LOAD )
intel_fill_box( intel, 40, 4, 8, 8, 255, 255, 0 );
/* Green box if hardware never idles (as far as we can tell)
*/
if ( !(intel->perf_boxes & I830_BOX_RING_EMPTY) )
intel_fill_box( intel, 64, 4, 8, 8, 0, 255, 0 );
/* Draw bars indicating number of buffers allocated
* (not a great measure, easily confused)
*/
#if 0
if (intel->dma_used) {
int bar = intel->dma_used / 10240;
if (bar > 100) bar = 100;
if (bar < 1) bar = 1;
intel_fill_box( intel, 4, 16, bar, 4, 196, 128, 128 );
intel->dma_used = 0;
}
#endif
intel->perf_boxes = 0;
}
static int bad_prim_vertex_nr( int primitive, int nr )
{
switch (primitive & PRIM3D_MASK) {
case PRIM3D_POINTLIST:
return nr < 1;
case PRIM3D_LINELIST:
return (nr & 1) || nr == 0;
case PRIM3D_LINESTRIP:
return nr < 2;
case PRIM3D_TRILIST:
case PRIM3D_RECTLIST:
return nr % 3 || nr == 0;
case PRIM3D_POLY:
case PRIM3D_TRIFAN:
case PRIM3D_TRISTRIP:
case PRIM3D_TRISTRIP_RVRSE:
return nr < 3;
default:
return 1;
}
}
static void intel_flush_inline_primitive( GLcontext *ctx )
{
intelContextPtr intel = INTEL_CONTEXT( ctx );
GLuint used = intel->batch.ptr - intel->prim.start_ptr;
GLuint vertcount;
assert(intel->prim.primitive != ~0);
if (1) {
/* Check vertex size against the vertex we're specifying to
* hardware. If it's wrong, ditch the primitive.
*/
if (!intel->vtbl.check_vertex_size( intel, intel->vertex_size ))
goto do_discard;
vertcount = (used - 4)/ (intel->vertex_size * 4);
if (!vertcount)
goto do_discard;
if (vertcount * intel->vertex_size * 4 != used - 4) {
fprintf(stderr, "vertex size confusion %d %d\n", used,
intel->vertex_size * vertcount * 4);
goto do_discard;
}
if (bad_prim_vertex_nr( intel->prim.primitive, vertcount )) {
fprintf(stderr, "bad_prim_vertex_nr %x %d\n", intel->prim.primitive,
vertcount);
goto do_discard;
}
}
if (used < 8)
goto do_discard;
*(int *)intel->prim.start_ptr = (_3DPRIMITIVE |
intel->prim.primitive |
(used/4-2));
goto finished;
do_discard:
intel->batch.ptr -= used;
intel->batch.space += used;
assert(intel->batch.space >= 0);
finished:
intel->prim.primitive = ~0;
intel->prim.start_ptr = 0;
intel->prim.flush = 0;
}
/* Emit a primitive referencing vertices in a vertex buffer.
*/
void intelStartInlinePrimitive( intelContextPtr intel, GLuint prim )
{
BATCH_LOCALS;
if (0)
fprintf(stderr, "%s %x\n", __FUNCTION__, prim);
/* Finish any in-progress primitive:
*/
INTEL_FIREVERTICES( intel );
/* Emit outstanding state:
*/
intel->vtbl.emit_state( intel );
/* Make sure there is some space in this buffer:
*/
if (intel->vertex_size * 10 * sizeof(GLuint) >= intel->batch.space) {
intelFlushBatch(intel, GL_TRUE);
intel->vtbl.emit_state( intel );
}
#if 1
if (((unsigned long)intel->batch.ptr) & 0x4) {
BEGIN_BATCH(1);
OUT_BATCH(0);
ADVANCE_BATCH();
}
#endif
/* Emit a slot which will be filled with the inline primitive
* command later.
*/
BEGIN_BATCH(2);
OUT_BATCH( 0 );
intel->prim.start_ptr = batch_ptr;
intel->prim.primitive = prim;
intel->prim.flush = intel_flush_inline_primitive;
intel->batch.contains_geometry = 1;
OUT_BATCH( 0 );
ADVANCE_BATCH();
}
void intelRestartInlinePrimitive( intelContextPtr intel )
{
GLuint prim = intel->prim.primitive;
intel_flush_inline_primitive( &intel->ctx );
if (1) intelFlushBatch(intel, GL_TRUE); /* GL_TRUE - is critical */
intelStartInlinePrimitive( intel, prim );
}
void intelWrapInlinePrimitive( intelContextPtr intel )
{
GLuint prim = intel->prim.primitive;
if (0)
fprintf(stderr, "%s\n", __FUNCTION__);
intel_flush_inline_primitive( &intel->ctx );
intelFlushBatch(intel, GL_TRUE);
intelStartInlinePrimitive( intel, prim );
}
/* Emit a primitive with space for inline vertices.
*/
GLuint *intelEmitInlinePrimitiveLocked(intelContextPtr intel,
int primitive,
int dwords,
int vertex_size )
{
GLuint *tmp = 0;
BATCH_LOCALS;
if (0)
fprintf(stderr, "%s 0x%x %d\n", __FUNCTION__, primitive, dwords);
/* Emit outstanding state:
*/
intel->vtbl.emit_state( intel );
if ((1+dwords)*4 >= intel->batch.space) {
intelFlushBatch(intel, GL_TRUE);
intel->vtbl.emit_state( intel );
}
if (1) {
int used = dwords * 4;
int vertcount;
/* Check vertex size against the vertex we're specifying to
* hardware. If it's wrong, ditch the primitive.
*/
if (!intel->vtbl.check_vertex_size( intel, vertex_size ))
goto do_discard;
vertcount = dwords / vertex_size;
if (dwords % vertex_size) {
fprintf(stderr, "did not request a whole number of vertices\n");
goto do_discard;
}
if (bad_prim_vertex_nr( primitive, vertcount )) {
fprintf(stderr, "bad_prim_vertex_nr %x %d\n", primitive, vertcount);
goto do_discard;
}
if (used < 8)
goto do_discard;
}
/* Emit 3D_PRIMITIVE commands:
*/
BEGIN_BATCH(1 + dwords);
OUT_BATCH( _3DPRIMITIVE |
primitive |
(dwords-1) );
tmp = (GLuint *)batch_ptr;
batch_ptr += dwords * 4;
ADVANCE_BATCH();
intel->batch.contains_geometry = 1;
do_discard:
return tmp;
}
static void intelWaitForFrameCompletion( intelContextPtr intel )
{
drm_i915_sarea_t *sarea = (drm_i915_sarea_t *)intel->sarea;
if (intel->do_irqs) {
if (intelGetLastFrame(intel) < sarea->last_dispatch) {
if (!intel->irqsEmitted) {
while (intelGetLastFrame (intel) < sarea->last_dispatch)
;
}
else {
UNLOCK_HARDWARE( intel );
intelWaitIrq( intel, intel->alloc.irq_emitted );
LOCK_HARDWARE( intel );
}
intel->irqsEmitted = 10;
}
if (intel->irqsEmitted) {
intelEmitIrqLocked( intel );
intel->irqsEmitted--;
}
}
else {
while (intelGetLastFrame (intel) < sarea->last_dispatch) {
UNLOCK_HARDWARE( intel );
if (intel->do_usleeps)
DO_USLEEP( 1 );
LOCK_HARDWARE( intel );
}
}
}
/*
* Copy the back buffer to the front buffer.
*/
void intelCopyBuffer( const __DRIdrawablePrivate *dPriv,
const drm_clip_rect_t *rect)
{
intelContextPtr intel;
GLboolean missed_target;
int64_t ust;
if (0)
fprintf(stderr, "%s\n", __FUNCTION__);
assert(dPriv);
assert(dPriv->driContextPriv);
assert(dPriv->driContextPriv->driverPrivate);
intel = (intelContextPtr) dPriv->driContextPriv->driverPrivate;
intelFlush( &intel->ctx );
LOCK_HARDWARE( intel );
intelWaitForFrameCompletion( intel );
if (!rect)
{
UNLOCK_HARDWARE( intel );
driWaitForVBlank( dPriv, &intel->vbl_seq, intel->vblank_flags, & missed_target );
LOCK_HARDWARE( intel );
}
{
const intelScreenPrivate *intelScreen = intel->intelScreen;
const __DRIdrawablePrivate *dPriv = intel->driDrawable;
const int nbox = dPriv->numClipRects;
const drm_clip_rect_t *pbox = dPriv->pClipRects;
drm_clip_rect_t box;
const int cpp = intelScreen->cpp;
const int pitch = intelScreen->front.pitch; /* in bytes */
int i;
GLuint CMD, BR13;
BATCH_LOCALS;
switch(cpp) {
case 2:
BR13 = (pitch) | (0xCC << 16) | (1<<24);
CMD = XY_SRC_COPY_BLT_CMD;
break;
case 4:
BR13 = (pitch) | (0xCC << 16) | (1<<24) | (1<<25);
CMD = (XY_SRC_COPY_BLT_CMD | XY_SRC_COPY_BLT_WRITE_ALPHA |
XY_SRC_COPY_BLT_WRITE_RGB);
break;
default:
BR13 = (pitch) | (0xCC << 16) | (1<<24);
CMD = XY_SRC_COPY_BLT_CMD;
break;
}
if (0)
intel_draw_performance_boxes( intel );
for (i = 0 ; i < nbox; i++, pbox++)
{
if (pbox->x1 > pbox->x2 ||
pbox->y1 > pbox->y2 ||
pbox->x2 > intelScreen->width ||
pbox->y2 > intelScreen->height) {
_mesa_warning(&intel->ctx, "Bad cliprect in intelCopyBuffer()");
continue;
}
box = *pbox;
if (rect)
{
if (rect->x1 > box.x1)
box.x1 = rect->x1;
if (rect->y1 > box.y1)
box.y1 = rect->y1;
if (rect->x2 < box.x2)
box.x2 = rect->x2;
if (rect->y2 < box.y2)
box.y2 = rect->y2;
if (box.x1 > box.x2 || box.y1 > box.y2)
continue;
}
BEGIN_BATCH( 8);
OUT_BATCH( CMD );
OUT_BATCH( BR13 );
OUT_BATCH( (box.y1 << 16) | box.x1 );
OUT_BATCH( (box.y2 << 16) | box.x2 );
if (intel->sarea->pf_current_page == 0)
OUT_BATCH( intelScreen->front.offset );
else
OUT_BATCH( intelScreen->back.offset );
OUT_BATCH( (box.y1 << 16) | box.x1 );
OUT_BATCH( BR13 & 0xffff );
if (intel->sarea->pf_current_page == 0)
OUT_BATCH( intelScreen->back.offset );
else
OUT_BATCH( intelScreen->front.offset );
ADVANCE_BATCH();
}
}
intelFlushBatchLocked( intel, GL_TRUE, GL_TRUE, GL_TRUE );
UNLOCK_HARDWARE( intel );
if (!rect)
{
intel->swap_count++;
(*dri_interface->getUST)(&ust);
if (missed_target) {
intel->swap_missed_count++;
intel->swap_missed_ust = ust - intel->swap_ust;
}
intel->swap_ust = ust;
}
}
void intelEmitFillBlitLocked( intelContextPtr intel,
GLuint cpp,
GLshort dst_pitch, /* in bytes */
GLuint dst_offset,
GLshort x, GLshort y,
GLshort w, GLshort h,
GLuint color )
{
GLuint BR13, CMD;
BATCH_LOCALS;
switch(cpp) {
case 1:
case 2:
case 3:
BR13 = dst_pitch | (0xF0 << 16) | (1<<24);
CMD = XY_COLOR_BLT_CMD;
break;
case 4:
BR13 = dst_pitch | (0xF0 << 16) | (1<<24) | (1<<25);
CMD = (XY_COLOR_BLT_CMD | XY_COLOR_BLT_WRITE_ALPHA |
XY_COLOR_BLT_WRITE_RGB);
break;
default:
return;
}
BEGIN_BATCH( 6);
OUT_BATCH( CMD );
OUT_BATCH( BR13 );
OUT_BATCH( (y << 16) | x );
OUT_BATCH( ((y+h) << 16) | (x+w) );
OUT_BATCH( dst_offset );
OUT_BATCH( color );
ADVANCE_BATCH();
}
/* Copy BitBlt
*/
void intelEmitCopyBlitLocked( intelContextPtr intel,
GLuint cpp,
GLshort src_pitch,
GLuint src_offset,
GLshort dst_pitch,
GLuint dst_offset,
GLshort src_x, GLshort src_y,
GLshort dst_x, GLshort dst_y,
GLshort w, GLshort h )
{
GLuint CMD, BR13;
int dst_y2 = dst_y + h;
int dst_x2 = dst_x + w;
BATCH_LOCALS;
src_pitch *= cpp;
dst_pitch *= cpp;
switch(cpp) {
case 1:
case 2:
case 3:
BR13 = dst_pitch | (0xCC << 16) | (1<<24);
CMD = XY_SRC_COPY_BLT_CMD;
break;
case 4:
BR13 = dst_pitch | (0xCC << 16) | (1<<24) | (1<<25);
CMD = (XY_SRC_COPY_BLT_CMD | XY_SRC_COPY_BLT_WRITE_ALPHA |
XY_SRC_COPY_BLT_WRITE_RGB);
break;
default:
return;
}
if (dst_y2 < dst_y ||
dst_x2 < dst_x) {
return;
}
BEGIN_BATCH( 12);
OUT_BATCH( CMD );
OUT_BATCH( BR13 );
OUT_BATCH( (dst_y << 16) | dst_x );
OUT_BATCH( (dst_y2 << 16) | dst_x2 );
OUT_BATCH( dst_offset );
OUT_BATCH( (src_y << 16) | src_x );
OUT_BATCH( src_pitch );
OUT_BATCH( src_offset );
ADVANCE_BATCH();
}
void intelClearWithBlit(GLcontext *ctx, GLbitfield flags, GLboolean all,
GLint cx1, GLint cy1, GLint cw, GLint ch)
{
intelContextPtr intel = INTEL_CONTEXT( ctx );
intelScreenPrivate *intelScreen = intel->intelScreen;
GLuint clear_depth, clear_color;
GLint cx, cy;
GLint pitch;
GLint cpp = intelScreen->cpp;
GLint i;
GLuint BR13, CMD, D_CMD;
BATCH_LOCALS;
intelFlush( &intel->ctx );
LOCK_HARDWARE( intel );
pitch = intelScreen->front.pitch;
clear_color = intel->ClearColor;
clear_depth = 0;
if (flags & BUFFER_BIT_DEPTH) {
clear_depth = (GLuint)(ctx->Depth.Clear * intel->ClearDepth);
}
if (flags & BUFFER_BIT_STENCIL) {
clear_depth |= (ctx->Stencil.Clear & 0xff) << 24;
}
switch(cpp) {
case 2:
BR13 = (0xF0 << 16) | (pitch) | (1<<24);
D_CMD = CMD = XY_COLOR_BLT_CMD;
break;
case 4:
BR13 = (0xF0 << 16) | (pitch) | (1<<24) | (1<<25);
CMD = (XY_COLOR_BLT_CMD |
XY_COLOR_BLT_WRITE_ALPHA |
XY_COLOR_BLT_WRITE_RGB);
D_CMD = XY_COLOR_BLT_CMD;
if (flags & BUFFER_BIT_DEPTH) D_CMD |= XY_COLOR_BLT_WRITE_RGB;
if (flags & BUFFER_BIT_STENCIL) D_CMD |= XY_COLOR_BLT_WRITE_ALPHA;
break;
default:
BR13 = (0xF0 << 16) | (pitch) | (1<<24);
D_CMD = CMD = XY_COLOR_BLT_CMD;
break;
}
{
/* flip top to bottom */
cy = intel->driDrawable->h-cy1-ch;
cx = cx1 + intel->drawX;
cy += intel->drawY;
/* adjust for page flipping */
if ( intel->sarea->pf_current_page == 1 ) {
GLuint tmp = flags;
flags &= ~(BUFFER_BIT_FRONT_LEFT | BUFFER_BIT_BACK_LEFT);
if ( tmp & BUFFER_BIT_FRONT_LEFT ) flags |= BUFFER_BIT_BACK_LEFT;
if ( tmp & BUFFER_BIT_BACK_LEFT ) flags |= BUFFER_BIT_FRONT_LEFT;
}
for (i = 0 ; i < intel->numClipRects ; i++)
{
drm_clip_rect_t *box = &intel->pClipRects[i];
drm_clip_rect_t b;
if (!all) {
GLint x = box->x1;
GLint y = box->y1;
GLint w = box->x2 - x;
GLint h = box->y2 - y;
if (x < cx) w -= cx - x, x = cx;
if (y < cy) h -= cy - y, y = cy;
if (x + w > cx + cw) w = cx + cw - x;
if (y + h > cy + ch) h = cy + ch - y;
if (w <= 0) continue;
if (h <= 0) continue;
b.x1 = x;
b.y1 = y;
b.x2 = x + w;
b.y2 = y + h;
} else {
b = *box;
}
if (b.x1 > b.x2 ||
b.y1 > b.y2 ||
b.x2 > intelScreen->width ||
b.y2 > intelScreen->height)
continue;
if ( flags & BUFFER_BIT_FRONT_LEFT ) {
BEGIN_BATCH( 6);
OUT_BATCH( CMD );
OUT_BATCH( BR13 );
OUT_BATCH( (b.y1 << 16) | b.x1 );
OUT_BATCH( (b.y2 << 16) | b.x2 );
OUT_BATCH( intelScreen->front.offset );
OUT_BATCH( clear_color );
ADVANCE_BATCH();
}
if ( flags & BUFFER_BIT_BACK_LEFT ) {
BEGIN_BATCH( 6);
OUT_BATCH( CMD );
OUT_BATCH( BR13 );
OUT_BATCH( (b.y1 << 16) | b.x1 );
OUT_BATCH( (b.y2 << 16) | b.x2 );
OUT_BATCH( intelScreen->back.offset );
OUT_BATCH( clear_color );
ADVANCE_BATCH();
}
if ( flags & (BUFFER_BIT_STENCIL | BUFFER_BIT_DEPTH) ) {
BEGIN_BATCH( 6);
OUT_BATCH( D_CMD );
OUT_BATCH( BR13 );
OUT_BATCH( (b.y1 << 16) | b.x1 );
OUT_BATCH( (b.y2 << 16) | b.x2 );
OUT_BATCH( intelScreen->depth.offset );
OUT_BATCH( clear_depth );
ADVANCE_BATCH();
}
}
}
intelFlushBatchLocked( intel, GL_TRUE, GL_FALSE, GL_TRUE );
UNLOCK_HARDWARE( intel );
}
void intelDestroyBatchBuffer( GLcontext *ctx )
{
intelContextPtr intel = INTEL_CONTEXT(ctx);
if (intel->alloc.offset) {
intelFreeAGP( intel, intel->alloc.ptr );
intel->alloc.ptr = NULL;
intel->alloc.offset = 0;
}
else if (intel->alloc.ptr) {
free(intel->alloc.ptr);
intel->alloc.ptr = NULL;
}
memset(&intel->batch, 0, sizeof(intel->batch));
}
void intelInitBatchBuffer( GLcontext *ctx )
{
intelContextPtr intel = INTEL_CONTEXT(ctx);
/* This path isn't really safe with rotate:
*/
if (getenv("INTEL_BATCH") && intel->intelScreen->allow_batchbuffer) {
switch (intel->intelScreen->deviceID) {
case PCI_CHIP_I865_G:
/* HW bug? Seems to crash if batchbuffer crosses 4k boundary.
*/
intel->alloc.size = 8 * 1024;
break;
default:
/* This is the smallest amount of memory the kernel deals with.
* We'd ideally like to make this smaller.
*/
intel->alloc.size = 1 << intel->intelScreen->logTextureGranularity;
break;
}
/* KW: temporary - this make crashes & lockups more frequent, so
* leave in until they are solved.
*/
intel->alloc.size = 8 * 1024;
intel->alloc.ptr = intelAllocateAGP( intel, intel->alloc.size );
if (intel->alloc.ptr)
intel->alloc.offset =
intelAgpOffsetFromVirtual( intel, intel->alloc.ptr );
else
intel->alloc.offset = 0; /* OK? */
}
/* The default is now to use a local buffer and pass that to the
* kernel. This is also a fallback if allocation fails on the
* above path:
*/
if (!intel->alloc.ptr) {
intel->alloc.size = 8 * 1024;
intel->alloc.ptr = malloc( intel->alloc.size );
intel->alloc.offset = 0;
}
assert(intel->alloc.ptr);
}
|