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Merge remote branch 'origin/nvc0'
[mesa.git] / src / gallium / drivers / r300 / r300_render.c
1 /*
2 * Copyright 2009 Corbin Simpson <MostAwesomeDude@gmail.com>
3 * Copyright 2010 Marek Olšák <maraeo@gmail.com>
4 *
5 * Permission is hereby granted, free of charge, to any person obtaining a
6 * copy of this software and associated documentation files (the "Software"),
7 * to deal in the Software without restriction, including without limitation
8 * on the rights to use, copy, modify, merge, publish, distribute, sub
9 * license, and/or sell copies of the Software, and to permit persons to whom
10 * the Software is furnished to do so, subject to the following conditions:
11 *
12 * The above copyright notice and this permission notice (including the next
13 * paragraph) shall be included in all copies or substantial portions of the
14 * Software.
15 *
16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
17 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
18 * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
19 * THE AUTHOR(S) AND/OR THEIR SUPPLIERS BE LIABLE FOR ANY CLAIM,
20 * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
21 * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
22 * USE OR OTHER DEALINGS IN THE SOFTWARE. */
23
24 /* r300_render: Vertex and index buffer primitive emission. Contains both
25 * HW TCL fastpath rendering, and SW TCL Draw-assisted rendering. */
26
27 #include "draw/draw_context.h"
28 #include "draw/draw_vbuf.h"
29
30 #include "util/u_inlines.h"
31
32 #include "util/u_format.h"
33 #include "util/u_memory.h"
34 #include "util/u_upload_mgr.h"
35 #include "util/u_prim.h"
36
37 #include "r300_cs.h"
38 #include "r300_context.h"
39 #include "r300_screen_buffer.h"
40 #include "r300_emit.h"
41 #include "r300_reg.h"
42
43 #include <limits.h>
44
45 #define IMMD_DWORDS 32
46
47 static uint32_t r300_translate_primitive(unsigned prim)
48 {
49 switch (prim) {
50 case PIPE_PRIM_POINTS:
51 return R300_VAP_VF_CNTL__PRIM_POINTS;
52 case PIPE_PRIM_LINES:
53 return R300_VAP_VF_CNTL__PRIM_LINES;
54 case PIPE_PRIM_LINE_LOOP:
55 return R300_VAP_VF_CNTL__PRIM_LINE_LOOP;
56 case PIPE_PRIM_LINE_STRIP:
57 return R300_VAP_VF_CNTL__PRIM_LINE_STRIP;
58 case PIPE_PRIM_TRIANGLES:
59 return R300_VAP_VF_CNTL__PRIM_TRIANGLES;
60 case PIPE_PRIM_TRIANGLE_STRIP:
61 return R300_VAP_VF_CNTL__PRIM_TRIANGLE_STRIP;
62 case PIPE_PRIM_TRIANGLE_FAN:
63 return R300_VAP_VF_CNTL__PRIM_TRIANGLE_FAN;
64 case PIPE_PRIM_QUADS:
65 return R300_VAP_VF_CNTL__PRIM_QUADS;
66 case PIPE_PRIM_QUAD_STRIP:
67 return R300_VAP_VF_CNTL__PRIM_QUAD_STRIP;
68 case PIPE_PRIM_POLYGON:
69 return R300_VAP_VF_CNTL__PRIM_POLYGON;
70 default:
71 return 0;
72 }
73 }
74
75 static uint32_t r300_provoking_vertex_fixes(struct r300_context *r300,
76 unsigned mode)
77 {
78 struct r300_rs_state* rs = (struct r300_rs_state*)r300->rs_state.state;
79 uint32_t color_control = rs->color_control;
80
81 /* By default (see r300_state.c:r300_create_rs_state) color_control is
82 * initialized to provoking the first vertex.
83 *
84 * Triangle fans must be reduced to the second vertex, not the first, in
85 * Gallium flatshade-first mode, as per the GL spec.
86 * (http://www.opengl.org/registry/specs/ARB/provoking_vertex.txt)
87 *
88 * Quads never provoke correctly in flatshade-first mode. The first
89 * vertex is never considered as provoking, so only the second, third,
90 * and fourth vertices can be selected, and both "third" and "last" modes
91 * select the fourth vertex. This is probably due to D3D lacking quads.
92 *
93 * Similarly, polygons reduce to the first, not the last, vertex, when in
94 * "last" mode, and all other modes start from the second vertex.
95 *
96 * ~ C.
97 */
98
99 if (rs->rs.flatshade_first) {
100 switch (mode) {
101 case PIPE_PRIM_TRIANGLE_FAN:
102 color_control |= R300_GA_COLOR_CONTROL_PROVOKING_VERTEX_SECOND;
103 break;
104 case PIPE_PRIM_QUADS:
105 case PIPE_PRIM_QUAD_STRIP:
106 case PIPE_PRIM_POLYGON:
107 color_control |= R300_GA_COLOR_CONTROL_PROVOKING_VERTEX_LAST;
108 break;
109 default:
110 color_control |= R300_GA_COLOR_CONTROL_PROVOKING_VERTEX_FIRST;
111 break;
112 }
113 } else {
114 color_control |= R300_GA_COLOR_CONTROL_PROVOKING_VERTEX_LAST;
115 }
116
117 return color_control;
118 }
119
120 void r500_emit_index_bias(struct r300_context *r300, int index_bias)
121 {
122 CS_LOCALS(r300);
123
124 BEGIN_CS(2);
125 OUT_CS_REG(R500_VAP_INDEX_OFFSET,
126 (index_bias & 0xFFFFFF) | (index_bias < 0 ? 1<<24 : 0));
127 END_CS;
128 }
129
130 static void r300_emit_draw_init(struct r300_context *r300, unsigned mode,
131 unsigned min_index, unsigned max_index)
132 {
133 CS_LOCALS(r300);
134
135 BEGIN_CS(5);
136 OUT_CS_REG(R300_GA_COLOR_CONTROL,
137 r300_provoking_vertex_fixes(r300, mode));
138 OUT_CS_REG_SEQ(R300_VAP_VF_MAX_VTX_INDX, 2);
139 OUT_CS(max_index);
140 OUT_CS(min_index);
141 END_CS;
142 }
143
144 /* This function splits the index bias value into two parts:
145 * - buffer_offset: the value that can be safely added to buffer offsets
146 * in r300_emit_vertex_arrays (it must yield a positive offset when added to
147 * a vertex buffer offset)
148 * - index_offset: the value that must be manually subtracted from indices
149 * in an index buffer to achieve negative offsets. */
150 static void r300_split_index_bias(struct r300_context *r300, int index_bias,
151 int *buffer_offset, int *index_offset)
152 {
153 struct pipe_vertex_buffer *vb, *vbufs = r300->vbuf_mgr->vertex_buffer;
154 struct pipe_vertex_element *velem = r300->velems->velem;
155 unsigned i, size;
156 int max_neg_bias;
157
158 if (index_bias < 0) {
159 /* See how large index bias we may subtract. We must be careful
160 * here because negative buffer offsets are not allowed
161 * by the DRM API. */
162 max_neg_bias = INT_MAX;
163 for (i = 0; i < r300->velems->count; i++) {
164 vb = &vbufs[velem[i].vertex_buffer_index];
165 size = (vb->buffer_offset + velem[i].src_offset) / vb->stride;
166 max_neg_bias = MIN2(max_neg_bias, size);
167 }
168
169 /* Now set the minimum allowed value. */
170 *buffer_offset = MAX2(-max_neg_bias, index_bias);
171 } else {
172 /* A positive index bias is OK. */
173 *buffer_offset = index_bias;
174 }
175
176 *index_offset = index_bias - *buffer_offset;
177 }
178
179 enum r300_prepare_flags {
180 PREP_FIRST_DRAW = (1 << 0), /* call emit_dirty_state and friends? */
181 PREP_VALIDATE_VBOS = (1 << 1), /* validate VBOs? */
182 PREP_EMIT_AOS = (1 << 2), /* call emit_vertex_arrays? */
183 PREP_EMIT_AOS_SWTCL = (1 << 3), /* call emit_vertex_arrays_swtcl? */
184 PREP_INDEXED = (1 << 4) /* is this draw_elements? */
185 };
186
187 /**
188 * Check if the requested number of dwords is available in the CS and
189 * if not, flush.
190 * \param r300 The context.
191 * \param flags See r300_prepare_flags.
192 * \param cs_dwords The number of dwords to reserve in CS.
193 * \return TRUE if the CS was flushed
194 */
195 static boolean r300_reserve_cs_dwords(struct r300_context *r300,
196 enum r300_prepare_flags flags,
197 unsigned cs_dwords)
198 {
199 boolean flushed = FALSE;
200 boolean first_draw = flags & PREP_FIRST_DRAW;
201 boolean emit_vertex_arrays = flags & PREP_EMIT_AOS;
202 boolean emit_vertex_arrays_swtcl = flags & PREP_EMIT_AOS_SWTCL;
203
204 /* Add dirty state, index offset, and AOS. */
205 if (first_draw) {
206 cs_dwords += r300_get_num_dirty_dwords(r300);
207
208 if (r300->screen->caps.is_r500)
209 cs_dwords += 2; /* emit_index_offset */
210
211 if (emit_vertex_arrays)
212 cs_dwords += 55; /* emit_vertex_arrays */
213
214 if (emit_vertex_arrays_swtcl)
215 cs_dwords += 7; /* emit_vertex_arrays_swtcl */
216 }
217
218 cs_dwords += r300_get_num_cs_end_dwords(r300);
219
220 /* Reserve requested CS space. */
221 if (cs_dwords > (R300_MAX_CMDBUF_DWORDS - r300->cs->cdw)) {
222 r300->context.flush(&r300->context, 0, NULL);
223 flushed = TRUE;
224 }
225
226 return flushed;
227 }
228
229 /**
230 * Validate buffers and emit dirty state.
231 * \param r300 The context.
232 * \param flags See r300_prepare_flags.
233 * \param index_buffer The index buffer to validate. The parameter may be NULL.
234 * \param buffer_offset The offset passed to emit_vertex_arrays.
235 * \param index_bias The index bias to emit.
236 * \return TRUE if rendering should be skipped
237 */
238 static boolean r300_emit_states(struct r300_context *r300,
239 enum r300_prepare_flags flags,
240 struct pipe_resource *index_buffer,
241 int buffer_offset,
242 int index_bias)
243 {
244 boolean first_draw = flags & PREP_FIRST_DRAW;
245 boolean emit_vertex_arrays = flags & PREP_EMIT_AOS;
246 boolean emit_vertex_arrays_swtcl = flags & PREP_EMIT_AOS_SWTCL;
247 boolean indexed = flags & PREP_INDEXED;
248 boolean validate_vbos = flags & PREP_VALIDATE_VBOS;
249
250 /* Validate buffers and emit dirty state if needed. */
251 if (first_draw) {
252 if (!r300_emit_buffer_validate(r300, validate_vbos,
253 index_buffer)) {
254 fprintf(stderr, "r300: CS space validation failed. "
255 "(not enough memory?) Skipping rendering.\n");
256 return FALSE;
257 }
258
259 r300_emit_dirty_state(r300);
260 if (r300->screen->caps.is_r500) {
261 if (r300->screen->caps.has_tcl)
262 r500_emit_index_bias(r300, index_bias);
263 else
264 r500_emit_index_bias(r300, 0);
265 }
266
267 if (emit_vertex_arrays &&
268 (r300->vertex_arrays_dirty ||
269 r300->vertex_arrays_indexed != indexed ||
270 r300->vertex_arrays_offset != buffer_offset)) {
271 r300_emit_vertex_arrays(r300, buffer_offset, indexed);
272
273 r300->vertex_arrays_dirty = FALSE;
274 r300->vertex_arrays_indexed = indexed;
275 r300->vertex_arrays_offset = buffer_offset;
276 }
277
278 if (emit_vertex_arrays_swtcl)
279 r300_emit_vertex_arrays_swtcl(r300, indexed);
280 }
281
282 return TRUE;
283 }
284
285 /**
286 * Check if the requested number of dwords is available in the CS and
287 * if not, flush. Then validate buffers and emit dirty state.
288 * \param r300 The context.
289 * \param flags See r300_prepare_flags.
290 * \param index_buffer The index buffer to validate. The parameter may be NULL.
291 * \param cs_dwords The number of dwords to reserve in CS.
292 * \param buffer_offset The offset passed to emit_vertex_arrays.
293 * \param index_bias The index bias to emit.
294 * \return TRUE if rendering should be skipped
295 */
296 static boolean r300_prepare_for_rendering(struct r300_context *r300,
297 enum r300_prepare_flags flags,
298 struct pipe_resource *index_buffer,
299 unsigned cs_dwords,
300 int buffer_offset,
301 int index_bias)
302 {
303 if (r300_reserve_cs_dwords(r300, flags, cs_dwords))
304 flags |= PREP_FIRST_DRAW;
305
306 return r300_emit_states(r300, flags, index_buffer, buffer_offset,
307 index_bias);
308 }
309
310 static boolean immd_is_good_idea(struct r300_context *r300,
311 unsigned count)
312 {
313 struct pipe_vertex_element* velem;
314 struct pipe_resource *buf;
315 boolean checked[PIPE_MAX_ATTRIBS] = {0};
316 unsigned vertex_element_count = r300->velems->count;
317 unsigned i, vbi;
318
319 if (DBG_ON(r300, DBG_NO_IMMD)) {
320 return FALSE;
321 }
322
323 if (r300->draw) {
324 return FALSE;
325 }
326
327 if (count * r300->velems->vertex_size_dwords > IMMD_DWORDS) {
328 return FALSE;
329 }
330
331 /* We shouldn't map buffers referenced by CS, busy buffers,
332 * and ones placed in VRAM. */
333 for (i = 0; i < vertex_element_count; i++) {
334 velem = &r300->velems->velem[i];
335 vbi = velem->vertex_buffer_index;
336
337 if (!checked[vbi]) {
338 buf = r300->vbuf_mgr->real_vertex_buffer[vbi];
339
340 if ((r300_resource(buf)->domain != R300_DOMAIN_GTT)) {
341 return FALSE;
342 }
343
344 checked[vbi] = TRUE;
345 }
346 }
347 return TRUE;
348 }
349
350 /*****************************************************************************
351 * The HWTCL draw functions. *
352 ****************************************************************************/
353
354 static void r300_draw_arrays_immediate(struct r300_context *r300,
355 unsigned mode, unsigned start,
356 unsigned count)
357 {
358 struct pipe_vertex_element* velem;
359 struct pipe_vertex_buffer* vbuf;
360 unsigned vertex_element_count = r300->velems->count;
361 unsigned i, v, vbi;
362
363 /* Size of the vertex, in dwords. */
364 unsigned vertex_size = r300->velems->vertex_size_dwords;
365
366 /* The number of dwords for this draw operation. */
367 unsigned dwords = 4 + count * vertex_size;
368
369 /* Size of the vertex element, in dwords. */
370 unsigned size[PIPE_MAX_ATTRIBS];
371
372 /* Stride to the same attrib in the next vertex in the vertex buffer,
373 * in dwords. */
374 unsigned stride[PIPE_MAX_ATTRIBS];
375
376 /* Mapped vertex buffers. */
377 uint32_t* map[PIPE_MAX_ATTRIBS] = {0};
378 uint32_t* mapelem[PIPE_MAX_ATTRIBS];
379
380 CS_LOCALS(r300);
381
382 if (!r300_prepare_for_rendering(r300, PREP_FIRST_DRAW, NULL, dwords, 0, 0))
383 return;
384
385 /* Calculate the vertex size, offsets, strides etc. and map the buffers. */
386 for (i = 0; i < vertex_element_count; i++) {
387 velem = &r300->velems->velem[i];
388 size[i] = r300->velems->format_size[i] / 4;
389 vbi = velem->vertex_buffer_index;
390 vbuf = &r300->vbuf_mgr->vertex_buffer[vbi];
391 stride[i] = vbuf->stride / 4;
392
393 /* Map the buffer. */
394 if (!map[vbi]) {
395 map[vbi] = (uint32_t*)r300->rws->buffer_map(
396 r300_resource(r300->vbuf_mgr->real_vertex_buffer[vbi])->buf,
397 r300->cs, PIPE_TRANSFER_READ | PIPE_TRANSFER_UNSYNCHRONIZED);
398 map[vbi] += (vbuf->buffer_offset / 4) + stride[i] * start;
399 }
400 mapelem[i] = map[vbi] + (velem->src_offset / 4);
401 }
402
403 r300_emit_draw_init(r300, mode, 0, count-1);
404
405 BEGIN_CS(dwords);
406 OUT_CS_REG(R300_VAP_VTX_SIZE, vertex_size);
407 OUT_CS_PKT3(R300_PACKET3_3D_DRAW_IMMD_2, count * vertex_size);
408 OUT_CS(R300_VAP_VF_CNTL__PRIM_WALK_VERTEX_EMBEDDED | (count << 16) |
409 r300_translate_primitive(mode));
410
411 /* Emit vertices. */
412 for (v = 0; v < count; v++) {
413 for (i = 0; i < vertex_element_count; i++) {
414 OUT_CS_TABLE(&mapelem[i][stride[i] * v], size[i]);
415 }
416 }
417 END_CS;
418
419 /* Unmap buffers. */
420 for (i = 0; i < vertex_element_count; i++) {
421 vbi = r300->velems->velem[i].vertex_buffer_index;
422
423 if (map[vbi]) {
424 r300->rws->buffer_unmap(r300_resource(r300->vbuf_mgr->real_vertex_buffer[vbi])->buf);
425 map[vbi] = NULL;
426 }
427 }
428 }
429
430 static void r300_emit_draw_arrays(struct r300_context *r300,
431 unsigned mode,
432 unsigned count)
433 {
434 boolean alt_num_verts = count > 65535;
435 CS_LOCALS(r300);
436
437 if (count >= (1 << 24)) {
438 fprintf(stderr, "r300: Got a huge number of vertices: %i, "
439 "refusing to render.\n", count);
440 return;
441 }
442
443 r300_emit_draw_init(r300, mode, 0, count-1);
444
445 BEGIN_CS(2 + (alt_num_verts ? 2 : 0));
446 if (alt_num_verts) {
447 OUT_CS_REG(R500_VAP_ALT_NUM_VERTICES, count);
448 }
449 OUT_CS_PKT3(R300_PACKET3_3D_DRAW_VBUF_2, 0);
450 OUT_CS(R300_VAP_VF_CNTL__PRIM_WALK_VERTEX_LIST | (count << 16) |
451 r300_translate_primitive(mode) |
452 (alt_num_verts ? R500_VAP_VF_CNTL__USE_ALT_NUM_VERTS : 0));
453 END_CS;
454 }
455
456 static void r300_emit_draw_elements(struct r300_context *r300,
457 struct pipe_resource* indexBuffer,
458 unsigned indexSize,
459 unsigned minIndex,
460 unsigned maxIndex,
461 unsigned mode,
462 unsigned start,
463 unsigned count,
464 uint16_t *imm_indices3)
465 {
466 uint32_t count_dwords, offset_dwords;
467 boolean alt_num_verts = count > 65535;
468 CS_LOCALS(r300);
469
470 if (count >= (1 << 24) || maxIndex >= (1 << 24)) {
471 fprintf(stderr, "r300: Got a huge number of vertices: %i, "
472 "refusing to render (maxIndex: %i).\n", count, maxIndex);
473 return;
474 }
475
476 DBG(r300, DBG_DRAW, "r300: Indexbuf of %u indices, min %u max %u\n",
477 count, minIndex, maxIndex);
478
479 r300_emit_draw_init(r300, mode, minIndex, maxIndex);
480
481 /* If start is odd, render the first triangle with indices embedded
482 * in the command stream. This will increase start by 3 and make it
483 * even. We can then proceed without a fallback. */
484 if (indexSize == 2 && (start & 1) &&
485 mode == PIPE_PRIM_TRIANGLES) {
486 BEGIN_CS(4);
487 OUT_CS_PKT3(R300_PACKET3_3D_DRAW_INDX_2, 2);
488 OUT_CS(R300_VAP_VF_CNTL__PRIM_WALK_INDICES | (3 << 16) |
489 R300_VAP_VF_CNTL__PRIM_TRIANGLES);
490 OUT_CS(imm_indices3[1] << 16 | imm_indices3[0]);
491 OUT_CS(imm_indices3[2]);
492 END_CS;
493
494 start += 3;
495 count -= 3;
496 if (!count)
497 return;
498 }
499
500 offset_dwords = indexSize * start / sizeof(uint32_t);
501
502 BEGIN_CS(8 + (alt_num_verts ? 2 : 0));
503 if (alt_num_verts) {
504 OUT_CS_REG(R500_VAP_ALT_NUM_VERTICES, count);
505 }
506 OUT_CS_PKT3(R300_PACKET3_3D_DRAW_INDX_2, 0);
507 if (indexSize == 4) {
508 count_dwords = count;
509 OUT_CS(R300_VAP_VF_CNTL__PRIM_WALK_INDICES | (count << 16) |
510 R300_VAP_VF_CNTL__INDEX_SIZE_32bit |
511 r300_translate_primitive(mode) |
512 (alt_num_verts ? R500_VAP_VF_CNTL__USE_ALT_NUM_VERTS : 0));
513 } else {
514 count_dwords = (count + 1) / 2;
515 OUT_CS(R300_VAP_VF_CNTL__PRIM_WALK_INDICES | (count << 16) |
516 r300_translate_primitive(mode) |
517 (alt_num_verts ? R500_VAP_VF_CNTL__USE_ALT_NUM_VERTS : 0));
518 }
519
520 OUT_CS_PKT3(R300_PACKET3_INDX_BUFFER, 2);
521 OUT_CS(R300_INDX_BUFFER_ONE_REG_WR | (R300_VAP_PORT_IDX0 >> 2) |
522 (0 << R300_INDX_BUFFER_SKIP_SHIFT));
523 OUT_CS(offset_dwords << 2);
524 OUT_CS(count_dwords);
525 OUT_CS_RELOC(r300_resource(indexBuffer));
526 END_CS;
527 }
528
529 static void r300_draw_elements_immediate(struct r300_context *r300,
530 int indexBias, unsigned minIndex,
531 unsigned maxIndex, unsigned mode,
532 unsigned start, unsigned count)
533 {
534 uint8_t *ptr1;
535 uint16_t *ptr2;
536 uint32_t *ptr4;
537 unsigned index_size = r300->index_buffer.index_size;
538 unsigned i, count_dwords = index_size == 4 ? count : (count + 1) / 2;
539 CS_LOCALS(r300);
540
541 /* 19 dwords for r300_draw_elements_immediate. Give up if the function fails. */
542 if (!r300_prepare_for_rendering(r300,
543 PREP_FIRST_DRAW | PREP_VALIDATE_VBOS | PREP_EMIT_AOS |
544 PREP_INDEXED, NULL, 2+count_dwords, 0, indexBias))
545 return;
546
547 r300_emit_draw_init(r300, mode, minIndex, maxIndex);
548
549 BEGIN_CS(2 + count_dwords);
550 OUT_CS_PKT3(R300_PACKET3_3D_DRAW_INDX_2, count_dwords);
551
552 switch (index_size) {
553 case 1:
554 ptr1 = r300_resource(r300->index_buffer.buffer)->b.user_ptr;
555 ptr1 += start;
556
557 OUT_CS(R300_VAP_VF_CNTL__PRIM_WALK_INDICES | (count << 16) |
558 r300_translate_primitive(mode));
559
560 if (indexBias && !r300->screen->caps.is_r500) {
561 for (i = 0; i < count-1; i += 2)
562 OUT_CS(((ptr1[i+1] + indexBias) << 16) |
563 (ptr1[i] + indexBias));
564
565 if (count & 1)
566 OUT_CS(ptr1[i] + indexBias);
567 } else {
568 for (i = 0; i < count-1; i += 2)
569 OUT_CS(((ptr1[i+1]) << 16) |
570 (ptr1[i] ));
571
572 if (count & 1)
573 OUT_CS(ptr1[i]);
574 }
575 break;
576
577 case 2:
578 ptr2 = (uint16_t*)r300_resource(r300->index_buffer.buffer)->b.user_ptr;
579 ptr2 += start;
580
581 OUT_CS(R300_VAP_VF_CNTL__PRIM_WALK_INDICES | (count << 16) |
582 r300_translate_primitive(mode));
583
584 if (indexBias && !r300->screen->caps.is_r500) {
585 for (i = 0; i < count-1; i += 2)
586 OUT_CS(((ptr2[i+1] + indexBias) << 16) |
587 (ptr2[i] + indexBias));
588
589 if (count & 1)
590 OUT_CS(ptr2[i] + indexBias);
591 } else {
592 OUT_CS_TABLE(ptr2, count_dwords);
593 }
594 break;
595
596 case 4:
597 ptr4 = (uint32_t*)r300_resource(r300->index_buffer.buffer)->b.user_ptr;
598 ptr4 += start;
599
600 OUT_CS(R300_VAP_VF_CNTL__PRIM_WALK_INDICES | (count << 16) |
601 R300_VAP_VF_CNTL__INDEX_SIZE_32bit |
602 r300_translate_primitive(mode));
603
604 if (indexBias && !r300->screen->caps.is_r500) {
605 for (i = 0; i < count; i++)
606 OUT_CS(ptr4[i] + indexBias);
607 } else {
608 OUT_CS_TABLE(ptr4, count_dwords);
609 }
610 break;
611 }
612 END_CS;
613 }
614
615 static void r300_draw_elements(struct r300_context *r300, int indexBias,
616 unsigned minIndex, unsigned maxIndex,
617 unsigned mode, unsigned start, unsigned count)
618 {
619 struct pipe_resource *indexBuffer = r300->index_buffer.buffer;
620 unsigned indexSize = r300->index_buffer.index_size;
621 struct pipe_resource* orgIndexBuffer = indexBuffer;
622 boolean alt_num_verts = r300->screen->caps.is_r500 &&
623 count > 65536;
624 unsigned short_count;
625 int buffer_offset = 0, index_offset = 0; /* for index bias emulation */
626 uint16_t indices3[3];
627
628 if (indexBias && !r300->screen->caps.is_r500) {
629 r300_split_index_bias(r300, indexBias, &buffer_offset, &index_offset);
630 }
631
632 r300_translate_index_buffer(r300, &indexBuffer, &indexSize, index_offset,
633 &start, count);
634
635 /* Fallback for misaligned ushort indices. */
636 if (indexSize == 2 && (start & 1) &&
637 !r300_resource(indexBuffer)->b.user_ptr) {
638 /* If we got here, then orgIndexBuffer == indexBuffer. */
639 uint16_t *ptr = r300->rws->buffer_map(r300_resource(orgIndexBuffer)->buf,
640 r300->cs,
641 PIPE_TRANSFER_READ |
642 PIPE_TRANSFER_UNSYNCHRONIZED);
643
644 if (mode == PIPE_PRIM_TRIANGLES) {
645 memcpy(indices3, ptr + start, 6);
646 } else {
647 /* Copy the mapped index buffer directly to the upload buffer.
648 * The start index will be aligned simply from the fact that
649 * every sub-buffer in the upload buffer is aligned. */
650 r300_upload_index_buffer(r300, &indexBuffer, indexSize, &start,
651 count, (uint8_t*)ptr);
652 }
653 r300->rws->buffer_unmap(r300_resource(orgIndexBuffer)->buf);
654 } else {
655 if (r300_resource(indexBuffer)->b.user_ptr)
656 r300_upload_index_buffer(r300, &indexBuffer, indexSize,
657 &start, count,
658 r300_resource(indexBuffer)->b.user_ptr);
659 }
660
661 /* 19 dwords for emit_draw_elements. Give up if the function fails. */
662 if (!r300_prepare_for_rendering(r300,
663 PREP_FIRST_DRAW | PREP_VALIDATE_VBOS | PREP_EMIT_AOS |
664 PREP_INDEXED, indexBuffer, 19, buffer_offset, indexBias))
665 goto done;
666
667 if (alt_num_verts || count <= 65535) {
668 r300_emit_draw_elements(r300, indexBuffer, indexSize,
669 minIndex, maxIndex, mode, start, count, indices3);
670 } else {
671 do {
672 if (indexSize == 2 && (start & 1))
673 short_count = MIN2(count, 65535);
674 else
675 short_count = MIN2(count, 65534);
676
677 r300_emit_draw_elements(r300, indexBuffer, indexSize,
678 minIndex, maxIndex,
679 mode, start, short_count, indices3);
680
681 start += short_count;
682 count -= short_count;
683
684 /* 15 dwords for emit_draw_elements */
685 if (count) {
686 if (!r300_prepare_for_rendering(r300,
687 PREP_VALIDATE_VBOS | PREP_EMIT_AOS | PREP_INDEXED,
688 indexBuffer, 19, buffer_offset, indexBias))
689 goto done;
690 }
691 } while (count);
692 }
693
694 done:
695 if (indexBuffer != orgIndexBuffer) {
696 pipe_resource_reference( &indexBuffer, NULL );
697 }
698 }
699
700 static void r300_draw_arrays(struct r300_context *r300, unsigned mode,
701 unsigned start, unsigned count)
702 {
703 boolean alt_num_verts = r300->screen->caps.is_r500 &&
704 count > 65536;
705 unsigned short_count;
706
707 /* 9 spare dwords for emit_draw_arrays. Give up if the function fails. */
708 if (!r300_prepare_for_rendering(r300,
709 PREP_FIRST_DRAW | PREP_VALIDATE_VBOS | PREP_EMIT_AOS,
710 NULL, 9, start, 0))
711 return;
712
713 if (alt_num_verts || count <= 65535) {
714 r300_emit_draw_arrays(r300, mode, count);
715 } else {
716 do {
717 short_count = MIN2(count, 65535);
718 r300_emit_draw_arrays(r300, mode, short_count);
719
720 start += short_count;
721 count -= short_count;
722
723 /* 9 spare dwords for emit_draw_arrays. Give up if the function fails. */
724 if (count) {
725 if (!r300_prepare_for_rendering(r300,
726 PREP_VALIDATE_VBOS | PREP_EMIT_AOS, NULL, 9,
727 start, 0))
728 return;
729 }
730 } while (count);
731 }
732 }
733
734 static void r300_draw_vbo(struct pipe_context* pipe,
735 const struct pipe_draw_info *info)
736 {
737 struct r300_context* r300 = r300_context(pipe);
738 unsigned count = info->count;
739 boolean buffers_updated, uploader_flushed;
740 boolean indexed = info->indexed && r300->index_buffer.buffer;
741 unsigned start_indexed = info->start + r300->index_buffer.offset;
742 int max_index = MIN2(r300->vbuf_mgr->max_index, info->max_index);
743
744 if (r300->skip_rendering ||
745 !u_trim_pipe_prim(info->mode, &count)) {
746 return;
747 }
748
749 r300_update_derived_state(r300);
750
751 /* Start the vbuf manager and update buffers if needed. */
752 u_vbuf_mgr_draw_begin(r300->vbuf_mgr, info,
753 &buffers_updated, &uploader_flushed);
754 if (buffers_updated) {
755 r300->vertex_arrays_dirty = TRUE;
756 }
757
758 /* Draw. */
759 if (indexed) {
760 if (count <= 8 &&
761 r300_resource(r300->index_buffer.buffer)->b.user_ptr) {
762 r300_draw_elements_immediate(r300, info->index_bias,
763 info->min_index, max_index,
764 info->mode, start_indexed, count);
765 } else {
766 r300_draw_elements(r300, info->index_bias, info->min_index,
767 max_index, info->mode, start_indexed, count);
768 }
769 } else {
770 if (immd_is_good_idea(r300, count)) {
771 r300_draw_arrays_immediate(r300, info->mode, info->start, count);
772 } else {
773 r300_draw_arrays(r300, info->mode, info->start, count);
774 }
775 }
776
777 u_vbuf_mgr_draw_end(r300->vbuf_mgr);
778 }
779
780 /****************************************************************************
781 * The rest of this file is for SW TCL rendering only. Please be polite and *
782 * keep these functions separated so that they are easier to locate. ~C. *
783 ***************************************************************************/
784
785 /* SW TCL elements, using Draw. */
786 static void r300_swtcl_draw_vbo(struct pipe_context* pipe,
787 const struct pipe_draw_info *info)
788 {
789 struct r300_context* r300 = r300_context(pipe);
790 struct pipe_transfer *vb_transfer[PIPE_MAX_ATTRIBS];
791 struct pipe_transfer *ib_transfer = NULL;
792 unsigned count = info->count;
793 int i;
794 void *indices = NULL;
795 boolean indexed = info->indexed && r300->index_buffer.buffer;
796
797 if (r300->skip_rendering) {
798 return;
799 }
800
801 if (!u_trim_pipe_prim(info->mode, &count)) {
802 return;
803 }
804
805 r300_update_derived_state(r300);
806
807 r300_reserve_cs_dwords(r300,
808 PREP_FIRST_DRAW | PREP_EMIT_AOS_SWTCL |
809 (indexed ? PREP_INDEXED : 0),
810 indexed ? 256 : 6);
811
812 for (i = 0; i < r300->vbuf_mgr->nr_vertex_buffers; i++) {
813 if (r300->vbuf_mgr->vertex_buffer[i].buffer) {
814 void *buf = pipe_buffer_map(pipe,
815 r300->vbuf_mgr->vertex_buffer[i].buffer,
816 PIPE_TRANSFER_READ |
817 PIPE_TRANSFER_UNSYNCHRONIZED,
818 &vb_transfer[i]);
819 draw_set_mapped_vertex_buffer(r300->draw, i, buf);
820 }
821 }
822
823 if (indexed) {
824 indices = pipe_buffer_map(pipe, r300->index_buffer.buffer,
825 PIPE_TRANSFER_READ |
826 PIPE_TRANSFER_UNSYNCHRONIZED, &ib_transfer);
827 }
828
829 draw_set_mapped_index_buffer(r300->draw, indices);
830
831 r300->draw_vbo_locked = TRUE;
832 r300->draw_first_emitted = FALSE;
833 draw_vbo(r300->draw, info);
834 draw_flush(r300->draw);
835 r300->draw_vbo_locked = FALSE;
836
837 for (i = 0; i < r300->vbuf_mgr->nr_vertex_buffers; i++) {
838 if (r300->vbuf_mgr->vertex_buffer[i].buffer) {
839 pipe_buffer_unmap(pipe, vb_transfer[i]);
840 draw_set_mapped_vertex_buffer(r300->draw, i, NULL);
841 }
842 }
843
844 if (indexed) {
845 pipe_buffer_unmap(pipe, ib_transfer);
846 draw_set_mapped_index_buffer(r300->draw, NULL);
847 }
848 }
849
850 /* Object for rendering using Draw. */
851 struct r300_render {
852 /* Parent class */
853 struct vbuf_render base;
854
855 /* Pipe context */
856 struct r300_context* r300;
857
858 /* Vertex information */
859 size_t vertex_size;
860 unsigned prim;
861 unsigned hwprim;
862
863 /* VBO */
864 size_t vbo_max_used;
865 void * vbo_ptr;
866
867 struct pipe_transfer *vbo_transfer;
868 };
869
870 static INLINE struct r300_render*
871 r300_render(struct vbuf_render* render)
872 {
873 return (struct r300_render*)render;
874 }
875
876 static const struct vertex_info*
877 r300_render_get_vertex_info(struct vbuf_render* render)
878 {
879 struct r300_render* r300render = r300_render(render);
880 struct r300_context* r300 = r300render->r300;
881
882 return &r300->vertex_info;
883 }
884
885 static boolean r300_render_allocate_vertices(struct vbuf_render* render,
886 ushort vertex_size,
887 ushort count)
888 {
889 struct r300_render* r300render = r300_render(render);
890 struct r300_context* r300 = r300render->r300;
891 struct pipe_screen* screen = r300->context.screen;
892 size_t size = (size_t)vertex_size * (size_t)count;
893
894 DBG(r300, DBG_DRAW, "r300: render_allocate_vertices (size: %d)\n", size);
895
896 if (size + r300->draw_vbo_offset > r300->draw_vbo_size)
897 {
898 pipe_resource_reference(&r300->vbo, NULL);
899 r300->vbo = pipe_buffer_create(screen,
900 PIPE_BIND_VERTEX_BUFFER,
901 PIPE_USAGE_STREAM,
902 R300_MAX_DRAW_VBO_SIZE);
903 r300->draw_vbo_offset = 0;
904 r300->draw_vbo_size = R300_MAX_DRAW_VBO_SIZE;
905 }
906
907 r300render->vertex_size = vertex_size;
908
909 return (r300->vbo) ? TRUE : FALSE;
910 }
911
912 static void* r300_render_map_vertices(struct vbuf_render* render)
913 {
914 struct r300_render* r300render = r300_render(render);
915 struct r300_context* r300 = r300render->r300;
916
917 assert(!r300render->vbo_transfer);
918
919 DBG(r300, DBG_DRAW, "r300: render_map_vertices\n");
920
921 r300render->vbo_ptr = pipe_buffer_map(&r300render->r300->context,
922 r300->vbo,
923 PIPE_TRANSFER_WRITE |
924 PIPE_TRANSFER_UNSYNCHRONIZED,
925 &r300render->vbo_transfer);
926
927 assert(r300render->vbo_ptr);
928
929 return ((uint8_t*)r300render->vbo_ptr + r300->draw_vbo_offset);
930 }
931
932 static void r300_render_unmap_vertices(struct vbuf_render* render,
933 ushort min,
934 ushort max)
935 {
936 struct r300_render* r300render = r300_render(render);
937 struct pipe_context* context = &r300render->r300->context;
938 struct r300_context* r300 = r300render->r300;
939
940 assert(r300render->vbo_transfer);
941
942 DBG(r300, DBG_DRAW, "r300: render_unmap_vertices\n");
943
944 r300render->vbo_max_used = MAX2(r300render->vbo_max_used,
945 r300render->vertex_size * (max + 1));
946 pipe_buffer_unmap(context, r300render->vbo_transfer);
947
948 r300render->vbo_transfer = NULL;
949 }
950
951 static void r300_render_release_vertices(struct vbuf_render* render)
952 {
953 struct r300_render* r300render = r300_render(render);
954 struct r300_context* r300 = r300render->r300;
955
956 DBG(r300, DBG_DRAW, "r300: render_release_vertices\n");
957
958 r300->draw_vbo_offset += r300render->vbo_max_used;
959 r300render->vbo_max_used = 0;
960 }
961
962 static boolean r300_render_set_primitive(struct vbuf_render* render,
963 unsigned prim)
964 {
965 struct r300_render* r300render = r300_render(render);
966
967 r300render->prim = prim;
968 r300render->hwprim = r300_translate_primitive(prim);
969
970 return TRUE;
971 }
972
973 static void r300_render_draw_arrays(struct vbuf_render* render,
974 unsigned start,
975 unsigned count)
976 {
977 struct r300_render* r300render = r300_render(render);
978 struct r300_context* r300 = r300render->r300;
979 uint8_t* ptr;
980 unsigned i;
981 unsigned dwords = 6;
982
983 CS_LOCALS(r300);
984 (void) i; (void) ptr;
985
986 DBG(r300, DBG_DRAW, "r300: render_draw_arrays (count: %d)\n", count);
987
988 if (r300->draw_first_emitted) {
989 if (!r300_prepare_for_rendering(r300,
990 PREP_FIRST_DRAW | PREP_EMIT_AOS_SWTCL,
991 NULL, dwords, 0, 0))
992 return;
993 } else {
994 if (!r300_emit_states(r300,
995 PREP_FIRST_DRAW | PREP_EMIT_AOS_SWTCL,
996 NULL, 0, 0))
997 return;
998 }
999
1000 BEGIN_CS(dwords);
1001 OUT_CS_REG(R300_GA_COLOR_CONTROL,
1002 r300_provoking_vertex_fixes(r300, r300render->prim));
1003 OUT_CS_REG(R300_VAP_VF_MAX_VTX_INDX, count - 1);
1004 OUT_CS_PKT3(R300_PACKET3_3D_DRAW_VBUF_2, 0);
1005 OUT_CS(R300_VAP_VF_CNTL__PRIM_WALK_VERTEX_LIST | (count << 16) |
1006 r300render->hwprim);
1007 END_CS;
1008
1009 r300->draw_first_emitted = TRUE;
1010 }
1011
1012 static void r300_render_draw_elements(struct vbuf_render* render,
1013 const ushort* indices,
1014 uint count)
1015 {
1016 struct r300_render* r300render = r300_render(render);
1017 struct r300_context* r300 = r300render->r300;
1018 int i;
1019 unsigned end_cs_dwords;
1020 unsigned max_index = (r300->draw_vbo_size - r300->draw_vbo_offset) /
1021 (r300render->r300->vertex_info.size * 4) - 1;
1022 unsigned short_count;
1023 unsigned free_dwords;
1024
1025 CS_LOCALS(r300);
1026 DBG(r300, DBG_DRAW, "r300: render_draw_elements (count: %d)\n", count);
1027
1028 if (r300->draw_first_emitted) {
1029 if (!r300_prepare_for_rendering(r300,
1030 PREP_FIRST_DRAW | PREP_EMIT_AOS_SWTCL | PREP_INDEXED,
1031 NULL, 256, 0, 0))
1032 return;
1033 } else {
1034 if (!r300_emit_states(r300,
1035 PREP_FIRST_DRAW | PREP_EMIT_AOS_SWTCL | PREP_INDEXED,
1036 NULL, 0, 0))
1037 return;
1038 }
1039
1040 /* Below we manage the CS space manually because there may be more
1041 * indices than it can fit in CS. */
1042
1043 end_cs_dwords = r300_get_num_cs_end_dwords(r300);
1044
1045 while (count) {
1046 free_dwords = R300_MAX_CMDBUF_DWORDS - r300->cs->cdw;
1047
1048 short_count = MIN2(count, (free_dwords - end_cs_dwords - 6) * 2);
1049
1050 BEGIN_CS(6 + (short_count+1)/2);
1051 OUT_CS_REG(R300_GA_COLOR_CONTROL,
1052 r300_provoking_vertex_fixes(r300, r300render->prim));
1053 OUT_CS_REG(R300_VAP_VF_MAX_VTX_INDX, max_index);
1054 OUT_CS_PKT3(R300_PACKET3_3D_DRAW_INDX_2, (short_count+1)/2);
1055 OUT_CS(R300_VAP_VF_CNTL__PRIM_WALK_INDICES | (short_count << 16) |
1056 r300render->hwprim);
1057 for (i = 0; i < short_count-1; i += 2) {
1058 OUT_CS(indices[i+1] << 16 | indices[i]);
1059 }
1060 if (short_count % 2) {
1061 OUT_CS(indices[short_count-1]);
1062 }
1063 END_CS;
1064
1065 /* OK now subtract the emitted indices and see if we need to emit
1066 * another draw packet. */
1067 indices += short_count;
1068 count -= short_count;
1069
1070 if (count) {
1071 if (!r300_prepare_for_rendering(r300,
1072 PREP_EMIT_AOS_SWTCL | PREP_INDEXED,
1073 NULL, 256, 0, 0))
1074 return;
1075
1076 end_cs_dwords = r300_get_num_cs_end_dwords(r300);
1077 }
1078 }
1079
1080 r300->draw_first_emitted = TRUE;
1081 }
1082
1083 static void r300_render_destroy(struct vbuf_render* render)
1084 {
1085 FREE(render);
1086 }
1087
1088 static struct vbuf_render* r300_render_create(struct r300_context* r300)
1089 {
1090 struct r300_render* r300render = CALLOC_STRUCT(r300_render);
1091
1092 r300render->r300 = r300;
1093
1094 r300render->base.max_vertex_buffer_bytes = 1024 * 1024;
1095 r300render->base.max_indices = 16 * 1024;
1096
1097 r300render->base.get_vertex_info = r300_render_get_vertex_info;
1098 r300render->base.allocate_vertices = r300_render_allocate_vertices;
1099 r300render->base.map_vertices = r300_render_map_vertices;
1100 r300render->base.unmap_vertices = r300_render_unmap_vertices;
1101 r300render->base.set_primitive = r300_render_set_primitive;
1102 r300render->base.draw_elements = r300_render_draw_elements;
1103 r300render->base.draw_arrays = r300_render_draw_arrays;
1104 r300render->base.release_vertices = r300_render_release_vertices;
1105 r300render->base.destroy = r300_render_destroy;
1106
1107 return &r300render->base;
1108 }
1109
1110 struct draw_stage* r300_draw_stage(struct r300_context* r300)
1111 {
1112 struct vbuf_render* render;
1113 struct draw_stage* stage;
1114
1115 render = r300_render_create(r300);
1116
1117 if (!render) {
1118 return NULL;
1119 }
1120
1121 stage = draw_vbuf_stage(r300->draw, render);
1122
1123 if (!stage) {
1124 render->destroy(render);
1125 return NULL;
1126 }
1127
1128 draw_set_render(r300->draw, render);
1129
1130 return stage;
1131 }
1132
1133 void r300_draw_flush_vbuf(struct r300_context *r300)
1134 {
1135 pipe_resource_reference(&r300->vbo, NULL);
1136 r300->draw_vbo_size = 0;
1137 }
1138
1139 /****************************************************************************
1140 * End of SW TCL functions *
1141 ***************************************************************************/
1142
1143 /* This functions is used to draw a rectangle for the blitter module.
1144 *
1145 * If we rendered a quad, the pixels on the main diagonal
1146 * would be computed and stored twice, which makes the clear/copy codepaths
1147 * somewhat inefficient. Instead we use a rectangular point sprite. */
1148 static void r300_blitter_draw_rectangle(struct blitter_context *blitter,
1149 unsigned x1, unsigned y1,
1150 unsigned x2, unsigned y2,
1151 float depth,
1152 enum blitter_attrib_type type,
1153 const float attrib[4])
1154 {
1155 struct r300_context *r300 = r300_context(util_blitter_get_pipe(blitter));
1156 unsigned last_sprite_coord_enable = r300->sprite_coord_enable;
1157 unsigned width = x2 - x1;
1158 unsigned height = y2 - y1;
1159 unsigned vertex_size =
1160 type == UTIL_BLITTER_ATTRIB_COLOR || !r300->draw ? 8 : 4;
1161 unsigned dwords = 13 + vertex_size +
1162 (type == UTIL_BLITTER_ATTRIB_TEXCOORD ? 7 : 0);
1163 const float zeros[4] = {0, 0, 0, 0};
1164 CS_LOCALS(r300);
1165
1166 r300->context.set_vertex_buffers(&r300->context, 0, NULL);
1167
1168 if (type == UTIL_BLITTER_ATTRIB_TEXCOORD)
1169 r300->sprite_coord_enable = 1;
1170
1171 r300_update_derived_state(r300);
1172
1173 /* Mark some states we don't care about as non-dirty. */
1174 r300->clip_state.dirty = FALSE;
1175 r300->viewport_state.dirty = FALSE;
1176
1177 if (!r300_prepare_for_rendering(r300, PREP_FIRST_DRAW, NULL, dwords, 0, 0))
1178 goto done;
1179
1180 DBG(r300, DBG_DRAW, "r300: draw_rectangle\n");
1181
1182 BEGIN_CS(dwords);
1183 /* Set up GA. */
1184 OUT_CS_REG(R300_GA_POINT_SIZE, (height * 6) | ((width * 6) << 16));
1185
1186 if (type == UTIL_BLITTER_ATTRIB_TEXCOORD) {
1187 /* Set up the GA to generate texcoords. */
1188 OUT_CS_REG(R300_GB_ENABLE, R300_GB_POINT_STUFF_ENABLE |
1189 (R300_GB_TEX_STR << R300_GB_TEX0_SOURCE_SHIFT));
1190 OUT_CS_REG_SEQ(R300_GA_POINT_S0, 4);
1191 OUT_CS_32F(attrib[0]);
1192 OUT_CS_32F(attrib[3]);
1193 OUT_CS_32F(attrib[2]);
1194 OUT_CS_32F(attrib[1]);
1195 }
1196
1197 /* Set up VAP controls. */
1198 OUT_CS_REG(R300_VAP_CLIP_CNTL, R300_CLIP_DISABLE);
1199 OUT_CS_REG(R300_VAP_VTE_CNTL, R300_VTX_XY_FMT | R300_VTX_Z_FMT);
1200 OUT_CS_REG(R300_VAP_VTX_SIZE, vertex_size);
1201 OUT_CS_REG_SEQ(R300_VAP_VF_MAX_VTX_INDX, 2);
1202 OUT_CS(1);
1203 OUT_CS(0);
1204
1205 /* Draw. */
1206 OUT_CS_PKT3(R300_PACKET3_3D_DRAW_IMMD_2, vertex_size);
1207 OUT_CS(R300_VAP_VF_CNTL__PRIM_WALK_VERTEX_EMBEDDED | (1 << 16) |
1208 R300_VAP_VF_CNTL__PRIM_POINTS);
1209
1210 OUT_CS_32F(x1 + width * 0.5f);
1211 OUT_CS_32F(y1 + height * 0.5f);
1212 OUT_CS_32F(depth);
1213 OUT_CS_32F(1);
1214
1215 if (vertex_size == 8) {
1216 if (!attrib)
1217 attrib = zeros;
1218 OUT_CS_TABLE(attrib, 4);
1219 }
1220 END_CS;
1221
1222 done:
1223 /* Restore the state. */
1224 r300_mark_atom_dirty(r300, &r300->clip_state);
1225 r300_mark_atom_dirty(r300, &r300->rs_state);
1226 r300_mark_atom_dirty(r300, &r300->viewport_state);
1227
1228 r300->sprite_coord_enable = last_sprite_coord_enable;
1229 }
1230
1231 static void r300_resource_resolve(struct pipe_context* pipe,
1232 struct pipe_resource* dest,
1233 unsigned dst_layer,
1234 struct pipe_resource* src,
1235 unsigned src_layer)
1236 {
1237 struct r300_context* r300 = r300_context(pipe);
1238 struct pipe_surface* srcsurf, surf_tmpl;
1239 struct r300_aa_state *aa = (struct r300_aa_state*)r300->aa_state.state;
1240 float color[] = {0, 0, 0, 0};
1241
1242 memset(&surf_tmpl, 0, sizeof(surf_tmpl));
1243 surf_tmpl.format = src->format;
1244 surf_tmpl.usage = 0; /* not really a surface hence no bind flags */
1245 surf_tmpl.u.tex.level = 0; /* msaa resources cannot have mipmaps */
1246 surf_tmpl.u.tex.first_layer = src_layer;
1247 surf_tmpl.u.tex.last_layer = src_layer;
1248 srcsurf = pipe->create_surface(pipe, src, &surf_tmpl);
1249 surf_tmpl.format = dest->format;
1250 surf_tmpl.u.tex.first_layer = dst_layer;
1251 surf_tmpl.u.tex.last_layer = dst_layer;
1252
1253 DBG(r300, DBG_DRAW, "r300: Resolving resource...\n");
1254
1255 /* Enable AA resolve. */
1256 aa->dest = r300_surface(pipe->create_surface(pipe, dest, &surf_tmpl));
1257
1258 aa->aaresolve_ctl =
1259 R300_RB3D_AARESOLVE_CTL_AARESOLVE_MODE_RESOLVE |
1260 R300_RB3D_AARESOLVE_CTL_AARESOLVE_ALPHA_AVERAGE;
1261 r300->aa_state.size = 10;
1262 r300_mark_atom_dirty(r300, &r300->aa_state);
1263
1264 /* Resolve the surface. */
1265 r300->context.clear_render_target(pipe,
1266 srcsurf, color, 0, 0, src->width0, src->height0);
1267
1268 /* Disable AA resolve. */
1269 aa->aaresolve_ctl = 0;
1270 r300->aa_state.size = 4;
1271 r300_mark_atom_dirty(r300, &r300->aa_state);
1272
1273 pipe_surface_reference((struct pipe_surface**)&srcsurf, NULL);
1274 pipe_surface_reference((struct pipe_surface**)&aa->dest, NULL);
1275 }
1276
1277 void r300_init_render_functions(struct r300_context *r300)
1278 {
1279 /* Set draw functions based on presence of HW TCL. */
1280 if (r300->screen->caps.has_tcl) {
1281 r300->context.draw_vbo = r300_draw_vbo;
1282 } else {
1283 r300->context.draw_vbo = r300_swtcl_draw_vbo;
1284 }
1285
1286 r300->context.resource_resolve = r300_resource_resolve;
1287 r300->blitter->draw_rectangle = r300_blitter_draw_rectangle;
1288
1289 /* Plug in the two-sided stencil reference value fallback if needed. */
1290 if (!r300->screen->caps.is_r500)
1291 r300_plug_in_stencil_ref_fallback(r300);
1292 }