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142538b36575580595c08bf735557b8f6a0775ea
[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 #include "r300_state_derived.h"
43
44 #include <limits.h>
45
46 #define IMMD_DWORDS 32
47
48 static uint32_t r300_translate_primitive(unsigned prim)
49 {
50 switch (prim) {
51 case PIPE_PRIM_POINTS:
52 return R300_VAP_VF_CNTL__PRIM_POINTS;
53 case PIPE_PRIM_LINES:
54 return R300_VAP_VF_CNTL__PRIM_LINES;
55 case PIPE_PRIM_LINE_LOOP:
56 return R300_VAP_VF_CNTL__PRIM_LINE_LOOP;
57 case PIPE_PRIM_LINE_STRIP:
58 return R300_VAP_VF_CNTL__PRIM_LINE_STRIP;
59 case PIPE_PRIM_TRIANGLES:
60 return R300_VAP_VF_CNTL__PRIM_TRIANGLES;
61 case PIPE_PRIM_TRIANGLE_STRIP:
62 return R300_VAP_VF_CNTL__PRIM_TRIANGLE_STRIP;
63 case PIPE_PRIM_TRIANGLE_FAN:
64 return R300_VAP_VF_CNTL__PRIM_TRIANGLE_FAN;
65 case PIPE_PRIM_QUADS:
66 return R300_VAP_VF_CNTL__PRIM_QUADS;
67 case PIPE_PRIM_QUAD_STRIP:
68 return R300_VAP_VF_CNTL__PRIM_QUAD_STRIP;
69 case PIPE_PRIM_POLYGON:
70 return R300_VAP_VF_CNTL__PRIM_POLYGON;
71 default:
72 return 0;
73 }
74 }
75
76 static uint32_t r300_provoking_vertex_fixes(struct r300_context *r300,
77 unsigned mode)
78 {
79 struct r300_rs_state* rs = (struct r300_rs_state*)r300->rs_state.state;
80 uint32_t color_control = rs->color_control;
81
82 /* By default (see r300_state.c:r300_create_rs_state) color_control is
83 * initialized to provoking the first vertex.
84 *
85 * Triangle fans must be reduced to the second vertex, not the first, in
86 * Gallium flatshade-first mode, as per the GL spec.
87 * (http://www.opengl.org/registry/specs/ARB/provoking_vertex.txt)
88 *
89 * Quads never provoke correctly in flatshade-first mode. The first
90 * vertex is never considered as provoking, so only the second, third,
91 * and fourth vertices can be selected, and both "third" and "last" modes
92 * select the fourth vertex. This is probably due to D3D lacking quads.
93 *
94 * Similarly, polygons reduce to the first, not the last, vertex, when in
95 * "last" mode, and all other modes start from the second vertex.
96 *
97 * ~ C.
98 */
99
100 if (rs->rs.flatshade_first) {
101 switch (mode) {
102 case PIPE_PRIM_TRIANGLE_FAN:
103 color_control |= R300_GA_COLOR_CONTROL_PROVOKING_VERTEX_SECOND;
104 break;
105 case PIPE_PRIM_QUADS:
106 case PIPE_PRIM_QUAD_STRIP:
107 case PIPE_PRIM_POLYGON:
108 color_control |= R300_GA_COLOR_CONTROL_PROVOKING_VERTEX_LAST;
109 break;
110 default:
111 color_control |= R300_GA_COLOR_CONTROL_PROVOKING_VERTEX_FIRST;
112 break;
113 }
114 } else {
115 color_control |= R300_GA_COLOR_CONTROL_PROVOKING_VERTEX_LAST;
116 }
117
118 return color_control;
119 }
120
121 void r500_emit_index_bias(struct r300_context *r300, int index_bias)
122 {
123 CS_LOCALS(r300);
124
125 BEGIN_CS(2);
126 OUT_CS_REG(R500_VAP_INDEX_OFFSET,
127 (index_bias & 0xFFFFFF) | (index_bias < 0 ? 1<<24 : 0));
128 END_CS;
129 }
130
131 /* This function splits the index bias value into two parts:
132 * - buffer_offset: the value that can be safely added to buffer offsets
133 * in r300_emit_aos (it must yield a positive offset when added to
134 * a vertex buffer offset)
135 * - index_offset: the value that must be manually subtracted from indices
136 * in an index buffer to achieve negative offsets. */
137 static void r300_split_index_bias(struct r300_context *r300, int index_bias,
138 int *buffer_offset, int *index_offset)
139 {
140 struct pipe_vertex_buffer *vb, *vbufs = r300->vertex_buffer;
141 struct pipe_vertex_element *velem = r300->velems->velem;
142 unsigned i, size;
143 int max_neg_bias;
144
145 if (index_bias < 0) {
146 /* See how large index bias we may subtract. We must be careful
147 * here because negative buffer offsets are not allowed
148 * by the DRM API. */
149 max_neg_bias = INT_MAX;
150 for (i = 0; i < r300->velems->count; i++) {
151 vb = &vbufs[velem[i].vertex_buffer_index];
152 size = (vb->buffer_offset + velem[i].src_offset) / vb->stride;
153 max_neg_bias = MIN2(max_neg_bias, size);
154 }
155
156 /* Now set the minimum allowed value. */
157 *buffer_offset = MAX2(-max_neg_bias, index_bias);
158 } else {
159 /* A positive index bias is OK. */
160 *buffer_offset = index_bias;
161 }
162
163 *index_offset = index_bias - *buffer_offset;
164 }
165
166 enum r300_prepare_flags {
167 PREP_FIRST_DRAW = (1 << 0), /* call emit_dirty_state and friends? */
168 PREP_VALIDATE_VBOS = (1 << 1), /* validate VBOs? */
169 PREP_EMIT_AOS = (1 << 2), /* call emit_aos? */
170 PREP_EMIT_AOS_SWTCL = (1 << 3), /* call emit_aos_swtcl? */
171 PREP_INDEXED = (1 << 4) /* is this draw_elements? */
172 };
173
174 /**
175 * Check if the requested number of dwords is available in the CS and
176 * if not, flush.
177 * \param r300 The context.
178 * \param flags See r300_prepare_flags.
179 * \param cs_dwords The number of dwords to reserve in CS.
180 * \return TRUE if the CS was flushed
181 */
182 static boolean r300_reserve_cs_dwords(struct r300_context *r300,
183 enum r300_prepare_flags flags,
184 unsigned cs_dwords)
185 {
186 boolean flushed = FALSE;
187 boolean first_draw = flags & PREP_FIRST_DRAW;
188 boolean emit_aos = flags & PREP_EMIT_AOS;
189 boolean emit_aos_swtcl = flags & PREP_EMIT_AOS_SWTCL;
190
191 /* Add dirty state, index offset, and AOS. */
192 if (first_draw) {
193 cs_dwords += r300_get_num_dirty_dwords(r300);
194
195 if (r300->screen->caps.index_bias_supported)
196 cs_dwords += 2; /* emit_index_offset */
197
198 if (emit_aos)
199 cs_dwords += 55; /* emit_aos */
200
201 if (emit_aos_swtcl)
202 cs_dwords += 7; /* emit_aos_swtcl */
203 }
204
205 cs_dwords += r300_get_num_cs_end_dwords(r300);
206
207 /* Reserve requested CS space. */
208 if (cs_dwords > (R300_MAX_CMDBUF_DWORDS - r300->cs->cdw)) {
209 r300->context.flush(&r300->context, 0, NULL);
210 flushed = TRUE;
211 }
212
213 return flushed;
214 }
215
216 /**
217 * Validate buffers and emit dirty state.
218 * \param r300 The context.
219 * \param flags See r300_prepare_flags.
220 * \param index_buffer The index buffer to validate. The parameter may be NULL.
221 * \param aos_offset The offset passed to emit_aos.
222 * \param index_bias The index bias to emit.
223 * \return TRUE if rendering should be skipped
224 */
225 static boolean r300_emit_states(struct r300_context *r300,
226 enum r300_prepare_flags flags,
227 struct pipe_resource *index_buffer,
228 int aos_offset,
229 int index_bias)
230 {
231 boolean first_draw = flags & PREP_FIRST_DRAW;
232 boolean emit_aos = flags & PREP_EMIT_AOS;
233 boolean emit_aos_swtcl = flags & PREP_EMIT_AOS_SWTCL;
234 boolean indexed = flags & PREP_INDEXED;
235 boolean validate_vbos = flags & PREP_VALIDATE_VBOS;
236
237 /* Validate buffers and emit dirty state if needed. */
238 if (first_draw) {
239 /* upload buffers first */
240 if (r300->screen->caps.has_tcl && r300->any_user_vbs) {
241 r300_upload_user_buffers(r300);
242 r300->any_user_vbs = false;
243 }
244
245 if (r300->validate_buffers) {
246 if (!r300_emit_buffer_validate(r300, validate_vbos,
247 index_buffer)) {
248 fprintf(stderr, "r300: CS space validation failed. "
249 "(not enough memory?) Skipping rendering.\n");
250 return FALSE;
251 }
252
253 /* Consider the validation done only if everything was validated. */
254 if (validate_vbos) {
255 r300->validate_buffers = FALSE;
256 }
257 }
258
259 r300_emit_dirty_state(r300);
260 if (r300->screen->caps.index_bias_supported) {
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_aos)
268 r300_emit_aos(r300, aos_offset, indexed);
269
270 if (emit_aos_swtcl)
271 r300_emit_aos_swtcl(r300, indexed);
272 }
273
274 return TRUE;
275 }
276
277 /**
278 * Check if the requested number of dwords is available in the CS and
279 * if not, flush. Then validate buffers and emit dirty state.
280 * \param r300 The context.
281 * \param flags See r300_prepare_flags.
282 * \param index_buffer The index buffer to validate. The parameter may be NULL.
283 * \param cs_dwords The number of dwords to reserve in CS.
284 * \param aos_offset The offset passed to emit_aos.
285 * \param index_bias The index bias to emit.
286 * \return TRUE if rendering should be skipped
287 */
288 static boolean r300_prepare_for_rendering(struct r300_context *r300,
289 enum r300_prepare_flags flags,
290 struct pipe_resource *index_buffer,
291 unsigned cs_dwords,
292 int aos_offset,
293 int index_bias)
294 {
295 if (r300_reserve_cs_dwords(r300, flags, cs_dwords))
296 flags |= PREP_FIRST_DRAW;
297
298 return r300_emit_states(r300, flags, index_buffer, aos_offset, index_bias);
299 }
300
301 static boolean immd_is_good_idea(struct r300_context *r300,
302 unsigned count)
303 {
304 struct pipe_vertex_element* velem;
305 struct pipe_vertex_buffer* vbuf;
306 boolean checked[PIPE_MAX_ATTRIBS] = {0};
307 unsigned vertex_element_count = r300->velems->count;
308 unsigned i, vbi;
309
310 if (DBG_ON(r300, DBG_NO_IMMD)) {
311 return FALSE;
312 }
313
314 if (r300->draw) {
315 return FALSE;
316 }
317
318 if (count * r300->velems->vertex_size_dwords > IMMD_DWORDS) {
319 return FALSE;
320 }
321
322 /* We shouldn't map buffers referenced by CS, busy buffers,
323 * and ones placed in VRAM. */
324 for (i = 0; i < vertex_element_count; i++) {
325 velem = &r300->velems->velem[i];
326 vbi = velem->vertex_buffer_index;
327
328 if (!checked[vbi]) {
329 vbuf = &r300->vertex_buffer[vbi];
330
331 if (!(r300_buffer(vbuf->buffer)->domain & R300_DOMAIN_GTT)) {
332 return FALSE;
333 }
334
335 if (r300_buffer_is_referenced(&r300->context,
336 vbuf->buffer,
337 R300_REF_CS | R300_REF_HW)) {
338 /* It's a very bad idea to map it... */
339 return FALSE;
340 }
341 checked[vbi] = TRUE;
342 }
343 }
344 return TRUE;
345 }
346
347 /*****************************************************************************
348 * The HWTCL draw functions. *
349 ****************************************************************************/
350
351 static void r300_emit_draw_arrays_immediate(struct r300_context *r300,
352 unsigned mode,
353 unsigned start,
354 unsigned count)
355 {
356 struct pipe_vertex_element* velem;
357 struct pipe_vertex_buffer* vbuf;
358 unsigned vertex_element_count = r300->velems->count;
359 unsigned i, v, vbi;
360
361 /* Size of the vertex, in dwords. */
362 unsigned vertex_size = r300->velems->vertex_size_dwords;
363
364 /* The number of dwords for this draw operation. */
365 unsigned dwords = 9 + count * vertex_size;
366
367 /* Size of the vertex element, in dwords. */
368 unsigned size[PIPE_MAX_ATTRIBS];
369
370 /* Stride to the same attrib in the next vertex in the vertex buffer,
371 * in dwords. */
372 unsigned stride[PIPE_MAX_ATTRIBS];
373
374 /* Mapped vertex buffers. */
375 uint32_t* map[PIPE_MAX_ATTRIBS];
376 uint32_t* mapelem[PIPE_MAX_ATTRIBS];
377 struct pipe_transfer* transfer[PIPE_MAX_ATTRIBS] = {0};
378
379 CS_LOCALS(r300);
380
381 if (!r300_prepare_for_rendering(r300, PREP_FIRST_DRAW, NULL, dwords, 0, 0))
382 return;
383
384 /* Calculate the vertex size, offsets, strides etc. and map the buffers. */
385 for (i = 0; i < vertex_element_count; i++) {
386 velem = &r300->velems->velem[i];
387 size[i] = r300->velems->hw_format_size[i] / 4;
388 vbi = velem->vertex_buffer_index;
389 vbuf = &r300->vertex_buffer[vbi];
390 stride[i] = vbuf->stride / 4;
391
392 /* Map the buffer. */
393 if (!transfer[vbi]) {
394 map[vbi] = (uint32_t*)pipe_buffer_map(&r300->context,
395 vbuf->buffer,
396 PIPE_TRANSFER_READ,
397 &transfer[vbi]);
398 map[vbi] += (vbuf->buffer_offset / 4) + stride[i] * start;
399 }
400 mapelem[i] = map[vbi] + (velem->src_offset / 4);
401 }
402
403 BEGIN_CS(dwords);
404 OUT_CS_REG(R300_GA_COLOR_CONTROL,
405 r300_provoking_vertex_fixes(r300, mode));
406 OUT_CS_REG(R300_VAP_VTX_SIZE, vertex_size);
407 OUT_CS_REG_SEQ(R300_VAP_VF_MAX_VTX_INDX, 2);
408 OUT_CS(count - 1);
409 OUT_CS(0);
410 OUT_CS_PKT3(R300_PACKET3_3D_DRAW_IMMD_2, count * vertex_size);
411 OUT_CS(R300_VAP_VF_CNTL__PRIM_WALK_VERTEX_EMBEDDED | (count << 16) |
412 r300_translate_primitive(mode));
413
414 /* Emit vertices. */
415 for (v = 0; v < count; v++) {
416 for (i = 0; i < vertex_element_count; i++) {
417 OUT_CS_TABLE(&mapelem[i][stride[i] * v], size[i]);
418 }
419 }
420 END_CS;
421
422 /* Unmap buffers. */
423 for (i = 0; i < vertex_element_count; i++) {
424 vbi = r300->velems->velem[i].vertex_buffer_index;
425
426 if (transfer[vbi]) {
427 vbuf = &r300->vertex_buffer[vbi];
428 pipe_buffer_unmap(&r300->context, transfer[vbi]);
429 transfer[vbi] = NULL;
430 }
431 }
432 }
433
434 static void r300_emit_draw_arrays(struct r300_context *r300,
435 unsigned mode,
436 unsigned count)
437 {
438 boolean alt_num_verts = count > 65535;
439 CS_LOCALS(r300);
440
441 if (count >= (1 << 24)) {
442 fprintf(stderr, "r300: Got a huge number of vertices: %i, "
443 "refusing to render.\n", count);
444 return;
445 }
446
447 BEGIN_CS(7 + (alt_num_verts ? 2 : 0));
448 if (alt_num_verts) {
449 OUT_CS_REG(R500_VAP_ALT_NUM_VERTICES, count);
450 }
451 OUT_CS_REG(R300_GA_COLOR_CONTROL,
452 r300_provoking_vertex_fixes(r300, mode));
453 OUT_CS_REG_SEQ(R300_VAP_VF_MAX_VTX_INDX, 2);
454 OUT_CS(count - 1);
455 OUT_CS(0);
456 OUT_CS_PKT3(R300_PACKET3_3D_DRAW_VBUF_2, 0);
457 OUT_CS(R300_VAP_VF_CNTL__PRIM_WALK_VERTEX_LIST | (count << 16) |
458 r300_translate_primitive(mode) |
459 (alt_num_verts ? R500_VAP_VF_CNTL__USE_ALT_NUM_VERTS : 0));
460 END_CS;
461 }
462
463 static void r300_emit_draw_elements(struct r300_context *r300,
464 struct pipe_resource* indexBuffer,
465 unsigned indexSize,
466 unsigned minIndex,
467 unsigned maxIndex,
468 unsigned mode,
469 unsigned start,
470 unsigned count,
471 uint16_t *imm_indices3)
472 {
473 uint32_t count_dwords, offset_dwords;
474 boolean alt_num_verts = count > 65535;
475 CS_LOCALS(r300);
476
477 if (count >= (1 << 24)) {
478 fprintf(stderr, "r300: Got a huge number of vertices: %i, "
479 "refusing to render.\n", count);
480 return;
481 }
482
483 maxIndex = MIN2(maxIndex, r300->vertex_buffer_max_index);
484
485 DBG(r300, DBG_DRAW, "r300: Indexbuf of %u indices, min %u max %u\n",
486 count, minIndex, maxIndex);
487
488 BEGIN_CS(5);
489 OUT_CS_REG(R300_GA_COLOR_CONTROL,
490 r300_provoking_vertex_fixes(r300, mode));
491 OUT_CS_REG_SEQ(R300_VAP_VF_MAX_VTX_INDX, 2);
492 OUT_CS(maxIndex);
493 OUT_CS(minIndex);
494 END_CS;
495
496 /* If start is odd, render the first triangle with indices embedded
497 * in the command stream. This will increase start by 3 and make it
498 * even. We can then proceed without a fallback. */
499 if (indexSize == 2 && (start & 1) &&
500 mode == PIPE_PRIM_TRIANGLES) {
501 BEGIN_CS(4);
502 OUT_CS_PKT3(R300_PACKET3_3D_DRAW_INDX_2, 2);
503 OUT_CS(R300_VAP_VF_CNTL__PRIM_WALK_INDICES | (3 << 16) |
504 R300_VAP_VF_CNTL__PRIM_TRIANGLES);
505 OUT_CS(imm_indices3[1] << 16 | imm_indices3[0]);
506 OUT_CS(imm_indices3[2]);
507 END_CS;
508
509 start += 3;
510 count -= 3;
511 if (!count)
512 return;
513 }
514
515 offset_dwords = indexSize * start / sizeof(uint32_t);
516
517 BEGIN_CS(8 + (alt_num_verts ? 2 : 0));
518 if (alt_num_verts) {
519 OUT_CS_REG(R500_VAP_ALT_NUM_VERTICES, count);
520 }
521 OUT_CS_PKT3(R300_PACKET3_3D_DRAW_INDX_2, 0);
522 if (indexSize == 4) {
523 count_dwords = count;
524 OUT_CS(R300_VAP_VF_CNTL__PRIM_WALK_INDICES | (count << 16) |
525 R300_VAP_VF_CNTL__INDEX_SIZE_32bit |
526 r300_translate_primitive(mode) |
527 (alt_num_verts ? R500_VAP_VF_CNTL__USE_ALT_NUM_VERTS : 0));
528 } else {
529 count_dwords = (count + 1) / 2;
530 OUT_CS(R300_VAP_VF_CNTL__PRIM_WALK_INDICES | (count << 16) |
531 r300_translate_primitive(mode) |
532 (alt_num_verts ? R500_VAP_VF_CNTL__USE_ALT_NUM_VERTS : 0));
533 }
534
535 /* INDX_BUFFER is a truly special packet3.
536 * Unlike most other packet3, where the offset is after the count,
537 * the order is reversed, so the relocation ends up carrying the
538 * size of the indexbuf instead of the offset.
539 */
540 OUT_CS_PKT3(R300_PACKET3_INDX_BUFFER, 2);
541 OUT_CS(R300_INDX_BUFFER_ONE_REG_WR | (R300_VAP_PORT_IDX0 >> 2) |
542 (0 << R300_INDX_BUFFER_SKIP_SHIFT));
543 OUT_CS(offset_dwords << 2);
544 OUT_CS_BUF_RELOC(indexBuffer, count_dwords,
545 r300_buffer(indexBuffer)->domain, 0);
546
547 END_CS;
548 }
549
550 /* This is the fast-path drawing & emission for HW TCL. */
551 static void r300_draw_range_elements(struct pipe_context* pipe,
552 struct pipe_resource* indexBuffer,
553 unsigned indexSize,
554 int indexBias,
555 unsigned minIndex,
556 unsigned maxIndex,
557 unsigned mode,
558 unsigned start,
559 unsigned count)
560 {
561 struct r300_context* r300 = r300_context(pipe);
562 struct pipe_resource* orgIndexBuffer = indexBuffer;
563 boolean alt_num_verts = r300->screen->caps.is_r500 &&
564 count > 65536 &&
565 r300->rws->get_value(r300->rws, R300_VID_DRM_2_3_0);
566 unsigned short_count;
567 int buffer_offset = 0, index_offset = 0; /* for index bias emulation */
568 uint16_t indices3[3];
569
570 if (indexBias && !r300->screen->caps.index_bias_supported) {
571 r300_split_index_bias(r300, indexBias, &buffer_offset, &index_offset);
572 }
573
574 r300_translate_index_buffer(r300, &indexBuffer, &indexSize, index_offset,
575 &start, count);
576
577 r300_update_derived_state(r300);
578
579 /* Fallback for misaligned ushort indices. */
580 if (indexSize == 2 && (start & 1) &&
581 !r300_buffer_is_user_buffer(indexBuffer)) {
582 struct pipe_transfer *transfer;
583 struct pipe_resource *userbuf;
584
585 uint16_t *ptr = pipe_buffer_map(pipe, indexBuffer,
586 PIPE_TRANSFER_READ, &transfer);
587
588 if (mode == PIPE_PRIM_TRIANGLES) {
589 memcpy(indices3, ptr + start, 6);
590 } else {
591 /* Copy the mapped index buffer directly to the upload buffer.
592 * The start index will be aligned simply from the fact that
593 * every sub-buffer in u_upload_mgr is aligned. */
594 userbuf = pipe->screen->user_buffer_create(pipe->screen,
595 ptr + start, count * 2,
596 PIPE_BIND_INDEX_BUFFER);
597 indexBuffer = userbuf;
598 r300_upload_index_buffer(r300, &indexBuffer, indexSize, 0, count, &start);
599 pipe_resource_reference(&userbuf, NULL);
600 }
601 pipe_buffer_unmap(pipe, transfer);
602 } else {
603 r300_upload_index_buffer(r300, &indexBuffer, indexSize, start, count, &start);
604 }
605
606 /* 19 dwords for emit_draw_elements. Give up if the function fails. */
607 if (!r300_prepare_for_rendering(r300,
608 PREP_FIRST_DRAW | PREP_VALIDATE_VBOS | PREP_EMIT_AOS |
609 PREP_INDEXED, indexBuffer, 19, buffer_offset, indexBias))
610 goto done;
611
612 if (alt_num_verts || count <= 65535) {
613 r300_emit_draw_elements(r300, indexBuffer, indexSize,
614 minIndex, maxIndex, mode, start, count, indices3);
615 } else {
616 do {
617 short_count = MIN2(count, 65534);
618 r300_emit_draw_elements(r300, indexBuffer, indexSize,
619 minIndex, maxIndex,
620 mode, start, short_count, indices3);
621
622 start += short_count;
623 count -= short_count;
624
625 /* 15 dwords for emit_draw_elements */
626 if (count) {
627 if (!r300_prepare_for_rendering(r300,
628 PREP_VALIDATE_VBOS | PREP_EMIT_AOS | PREP_INDEXED,
629 indexBuffer, 19, buffer_offset, indexBias))
630 goto done;
631 }
632 } while (count);
633 }
634
635 done:
636 if (indexBuffer != orgIndexBuffer) {
637 pipe_resource_reference( &indexBuffer, NULL );
638 }
639 }
640
641 static void r300_draw_arrays(struct pipe_context* pipe, unsigned mode,
642 unsigned start, unsigned count)
643 {
644 struct r300_context* r300 = r300_context(pipe);
645 boolean alt_num_verts = r300->screen->caps.is_r500 &&
646 count > 65536 &&
647 r300->rws->get_value(r300->rws, R300_VID_DRM_2_3_0);
648 unsigned short_count;
649
650 r300_update_derived_state(r300);
651
652 if (immd_is_good_idea(r300, count)) {
653 r300_emit_draw_arrays_immediate(r300, mode, start, count);
654 } else {
655 /* 9 spare dwords for emit_draw_arrays. Give up if the function fails. */
656 if (!r300_prepare_for_rendering(r300,
657 PREP_FIRST_DRAW | PREP_VALIDATE_VBOS | PREP_EMIT_AOS,
658 NULL, 9, start, 0))
659 return;
660
661 if (alt_num_verts || count <= 65535) {
662 r300_emit_draw_arrays(r300, mode, count);
663 } else {
664 do {
665 short_count = MIN2(count, 65535);
666 r300_emit_draw_arrays(r300, mode, short_count);
667
668 start += short_count;
669 count -= short_count;
670
671 /* 9 spare dwords for emit_draw_arrays. Give up if the function fails. */
672 if (count) {
673 if (!r300_prepare_for_rendering(r300,
674 PREP_VALIDATE_VBOS | PREP_EMIT_AOS, NULL, 9,
675 start, 0))
676 return;
677 }
678 } while (count);
679 }
680 }
681 }
682
683 static void r300_draw_vbo(struct pipe_context* pipe,
684 const struct pipe_draw_info *info)
685 {
686 struct r300_context* r300 = r300_context(pipe);
687 unsigned count = info->count;
688 boolean translate = FALSE;
689 boolean indexed = info->indexed && r300->index_buffer.buffer;
690 unsigned start_indexed = 0;
691
692 if (r300->skip_rendering) {
693 return;
694 }
695
696 if (!u_trim_pipe_prim(info->mode, &count)) {
697 return;
698 }
699
700 /* Index buffer range checking. */
701 if (indexed) {
702 assert(r300->index_buffer.offset % r300->index_buffer.index_size == 0);
703
704 /* Compute start for draw_elements, taking the offset into account. */
705 start_indexed =
706 info->start +
707 (r300->index_buffer.offset / r300->index_buffer.index_size);
708
709 if ((start_indexed + count) * r300->index_buffer.index_size >
710 r300->index_buffer.buffer->width0) {
711 fprintf(stderr, "r300: Invalid index buffer range. Skipping rendering.\n");
712 return;
713 }
714 }
715
716 /* Set up fallback for incompatible vertex layout if needed. */
717 if (r300->incompatible_vb_layout || r300->velems->incompatible_layout) {
718 r300_begin_vertex_translate(r300);
719 translate = TRUE;
720 }
721
722 if (indexed) {
723 r300_draw_range_elements(pipe,
724 r300->index_buffer.buffer,
725 r300->index_buffer.index_size,
726 info->index_bias,
727 info->min_index,
728 info->max_index,
729 info->mode,
730 start_indexed,
731 count);
732 } else {
733 r300_draw_arrays(pipe,
734 info->mode,
735 info->start,
736 count);
737 }
738
739 if (translate) {
740 r300_end_vertex_translate(r300);
741 }
742 }
743
744 /****************************************************************************
745 * The rest of this file is for SW TCL rendering only. Please be polite and *
746 * keep these functions separated so that they are easier to locate. ~C. *
747 ***************************************************************************/
748
749 /* SW TCL elements, using Draw. */
750 static void r300_swtcl_draw_vbo(struct pipe_context* pipe,
751 const struct pipe_draw_info *info)
752 {
753 struct r300_context* r300 = r300_context(pipe);
754 struct pipe_transfer *vb_transfer[PIPE_MAX_ATTRIBS];
755 struct pipe_transfer *ib_transfer = NULL;
756 unsigned count = info->count;
757 int i;
758 void *indices = NULL;
759 boolean indexed = info->indexed && r300->index_buffer.buffer;
760
761 if (r300->skip_rendering) {
762 return;
763 }
764
765 if (!u_trim_pipe_prim(info->mode, &count)) {
766 return;
767 }
768
769 r300_update_derived_state(r300);
770
771 r300_reserve_cs_dwords(r300,
772 PREP_FIRST_DRAW | PREP_EMIT_AOS_SWTCL |
773 (indexed ? PREP_INDEXED : 0),
774 indexed ? 256 : 6);
775
776 for (i = 0; i < r300->vertex_buffer_count; i++) {
777 if (r300->vertex_buffer[i].buffer) {
778 void *buf = pipe_buffer_map(pipe,
779 r300->vertex_buffer[i].buffer,
780 PIPE_TRANSFER_READ,
781 &vb_transfer[i]);
782 draw_set_mapped_vertex_buffer(r300->draw, i, buf);
783 }
784 }
785
786 if (indexed) {
787 indices = pipe_buffer_map(pipe, r300->index_buffer.buffer,
788 PIPE_TRANSFER_READ, &ib_transfer);
789 }
790
791 draw_set_mapped_index_buffer(r300->draw, indices);
792
793 r300->draw_vbo_locked = TRUE;
794 r300->draw_first_emitted = FALSE;
795 draw_vbo(r300->draw, info);
796 draw_flush(r300->draw);
797 r300->draw_vbo_locked = FALSE;
798
799 for (i = 0; i < r300->vertex_buffer_count; i++) {
800 if (r300->vertex_buffer[i].buffer) {
801 pipe_buffer_unmap(pipe, vb_transfer[i]);
802 draw_set_mapped_vertex_buffer(r300->draw, i, NULL);
803 }
804 }
805
806 if (indexed) {
807 pipe_buffer_unmap(pipe, ib_transfer);
808 draw_set_mapped_index_buffer(r300->draw, NULL);
809 }
810 }
811
812 /* Object for rendering using Draw. */
813 struct r300_render {
814 /* Parent class */
815 struct vbuf_render base;
816
817 /* Pipe context */
818 struct r300_context* r300;
819
820 /* Vertex information */
821 size_t vertex_size;
822 unsigned prim;
823 unsigned hwprim;
824
825 /* VBO */
826 size_t vbo_max_used;
827 void * vbo_ptr;
828
829 struct pipe_transfer *vbo_transfer;
830 };
831
832 static INLINE struct r300_render*
833 r300_render(struct vbuf_render* render)
834 {
835 return (struct r300_render*)render;
836 }
837
838 static const struct vertex_info*
839 r300_render_get_vertex_info(struct vbuf_render* render)
840 {
841 struct r300_render* r300render = r300_render(render);
842 struct r300_context* r300 = r300render->r300;
843
844 return &r300->vertex_info;
845 }
846
847 static boolean r300_render_allocate_vertices(struct vbuf_render* render,
848 ushort vertex_size,
849 ushort count)
850 {
851 struct r300_render* r300render = r300_render(render);
852 struct r300_context* r300 = r300render->r300;
853 struct pipe_screen* screen = r300->context.screen;
854 size_t size = (size_t)vertex_size * (size_t)count;
855
856 DBG(r300, DBG_DRAW, "r300: render_allocate_vertices (size: %d)\n", size);
857
858 if (size + r300->draw_vbo_offset > r300->draw_vbo_size)
859 {
860 pipe_resource_reference(&r300->vbo, NULL);
861 r300->vbo = pipe_buffer_create(screen,
862 PIPE_BIND_VERTEX_BUFFER,
863 R300_MAX_DRAW_VBO_SIZE);
864 r300->draw_vbo_offset = 0;
865 r300->draw_vbo_size = R300_MAX_DRAW_VBO_SIZE;
866 r300->validate_buffers = TRUE;
867 }
868
869 r300render->vertex_size = vertex_size;
870
871 return (r300->vbo) ? TRUE : FALSE;
872 }
873
874 static void* r300_render_map_vertices(struct vbuf_render* render)
875 {
876 struct r300_render* r300render = r300_render(render);
877 struct r300_context* r300 = r300render->r300;
878
879 assert(!r300render->vbo_transfer);
880
881 DBG(r300, DBG_DRAW, "r300: render_map_vertices\n");
882
883 r300render->vbo_ptr = pipe_buffer_map(&r300render->r300->context,
884 r300->vbo,
885 PIPE_TRANSFER_WRITE,
886 &r300render->vbo_transfer);
887
888 assert(r300render->vbo_ptr);
889
890 return ((uint8_t*)r300render->vbo_ptr + r300->draw_vbo_offset);
891 }
892
893 static void r300_render_unmap_vertices(struct vbuf_render* render,
894 ushort min,
895 ushort max)
896 {
897 struct r300_render* r300render = r300_render(render);
898 struct pipe_context* context = &r300render->r300->context;
899 struct r300_context* r300 = r300render->r300;
900
901 assert(r300render->vbo_transfer);
902
903 DBG(r300, DBG_DRAW, "r300: render_unmap_vertices\n");
904
905 r300render->vbo_max_used = MAX2(r300render->vbo_max_used,
906 r300render->vertex_size * (max + 1));
907 pipe_buffer_unmap(context, r300render->vbo_transfer);
908
909 r300render->vbo_transfer = NULL;
910 }
911
912 static void r300_render_release_vertices(struct vbuf_render* render)
913 {
914 struct r300_render* r300render = r300_render(render);
915 struct r300_context* r300 = r300render->r300;
916
917 DBG(r300, DBG_DRAW, "r300: render_release_vertices\n");
918
919 r300->draw_vbo_offset += r300render->vbo_max_used;
920 r300render->vbo_max_used = 0;
921 }
922
923 static boolean r300_render_set_primitive(struct vbuf_render* render,
924 unsigned prim)
925 {
926 struct r300_render* r300render = r300_render(render);
927
928 r300render->prim = prim;
929 r300render->hwprim = r300_translate_primitive(prim);
930
931 return TRUE;
932 }
933
934 static void r300_render_draw_arrays(struct vbuf_render* render,
935 unsigned start,
936 unsigned count)
937 {
938 struct r300_render* r300render = r300_render(render);
939 struct r300_context* r300 = r300render->r300;
940 uint8_t* ptr;
941 unsigned i;
942 unsigned dwords = 6;
943
944 CS_LOCALS(r300);
945 (void) i; (void) ptr;
946
947 DBG(r300, DBG_DRAW, "r300: render_draw_arrays (count: %d)\n", count);
948
949 if (r300->draw_first_emitted) {
950 if (!r300_prepare_for_rendering(r300,
951 PREP_FIRST_DRAW | PREP_EMIT_AOS_SWTCL,
952 NULL, 6, 0, 0))
953 return;
954 } else {
955 if (!r300_emit_states(r300,
956 PREP_FIRST_DRAW | PREP_EMIT_AOS_SWTCL,
957 NULL, 0, 0))
958 return;
959 }
960
961 /* Uncomment to dump all VBOs rendered through this interface.
962 * Slow and noisy!
963 ptr = pipe_buffer_map(&r300render->r300->context,
964 r300render->vbo, PIPE_TRANSFER_READ,
965 &r300render->vbo_transfer);
966
967 for (i = 0; i < count; i++) {
968 printf("r300: Vertex %d\n", i);
969 draw_dump_emitted_vertex(&r300->vertex_info, ptr);
970 ptr += r300->vertex_info.size * 4;
971 printf("\n");
972 }
973
974 pipe_buffer_unmap(&r300render->r300->context, r300render->vbo,
975 r300render->vbo_transfer);
976 */
977
978 BEGIN_CS(dwords);
979 OUT_CS_REG(R300_GA_COLOR_CONTROL,
980 r300_provoking_vertex_fixes(r300, r300render->prim));
981 OUT_CS_REG(R300_VAP_VF_MAX_VTX_INDX, count - 1);
982 OUT_CS_PKT3(R300_PACKET3_3D_DRAW_VBUF_2, 0);
983 OUT_CS(R300_VAP_VF_CNTL__PRIM_WALK_VERTEX_LIST | (count << 16) |
984 r300render->hwprim);
985 END_CS;
986
987 r300->draw_first_emitted = TRUE;
988 }
989
990 static void r300_render_draw_elements(struct vbuf_render* render,
991 const ushort* indices,
992 uint count)
993 {
994 struct r300_render* r300render = r300_render(render);
995 struct r300_context* r300 = r300render->r300;
996 int i;
997 unsigned end_cs_dwords;
998 unsigned max_index = (r300->draw_vbo_size - r300->draw_vbo_offset) /
999 (r300render->r300->vertex_info.size * 4) - 1;
1000 unsigned short_count;
1001 unsigned free_dwords;
1002
1003 CS_LOCALS(r300);
1004 DBG(r300, DBG_DRAW, "r300: render_draw_elements (count: %d)\n", count);
1005
1006 if (r300->draw_first_emitted) {
1007 if (!r300_prepare_for_rendering(r300,
1008 PREP_FIRST_DRAW | PREP_EMIT_AOS_SWTCL | PREP_INDEXED,
1009 NULL, 256, 0, 0))
1010 return;
1011 } else {
1012 if (!r300_emit_states(r300,
1013 PREP_FIRST_DRAW | PREP_EMIT_AOS_SWTCL | PREP_INDEXED,
1014 NULL, 0, 0))
1015 return;
1016 }
1017
1018 /* Below we manage the CS space manually because there may be more
1019 * indices than it can fit in CS. */
1020
1021 end_cs_dwords = r300_get_num_cs_end_dwords(r300);
1022
1023 while (count) {
1024 free_dwords = R300_MAX_CMDBUF_DWORDS - r300->cs->cdw;
1025
1026 short_count = MIN2(count, (free_dwords - end_cs_dwords - 6) * 2);
1027
1028 BEGIN_CS(6 + (short_count+1)/2);
1029 OUT_CS_REG(R300_GA_COLOR_CONTROL,
1030 r300_provoking_vertex_fixes(r300, r300render->prim));
1031 OUT_CS_REG(R300_VAP_VF_MAX_VTX_INDX, max_index);
1032 OUT_CS_PKT3(R300_PACKET3_3D_DRAW_INDX_2, (short_count+1)/2);
1033 OUT_CS(R300_VAP_VF_CNTL__PRIM_WALK_INDICES | (short_count << 16) |
1034 r300render->hwprim);
1035 for (i = 0; i < short_count-1; i += 2) {
1036 OUT_CS(indices[i+1] << 16 | indices[i]);
1037 }
1038 if (short_count % 2) {
1039 OUT_CS(indices[short_count-1]);
1040 }
1041 END_CS;
1042
1043 /* OK now subtract the emitted indices and see if we need to emit
1044 * another draw packet. */
1045 indices += short_count;
1046 count -= short_count;
1047
1048 if (count) {
1049 if (!r300_prepare_for_rendering(r300,
1050 PREP_EMIT_AOS_SWTCL | PREP_INDEXED,
1051 NULL, 256, 0, 0))
1052 return;
1053
1054 end_cs_dwords = r300_get_num_cs_end_dwords(r300);
1055 }
1056 }
1057
1058 r300->draw_first_emitted = TRUE;
1059 }
1060
1061 static void r300_render_destroy(struct vbuf_render* render)
1062 {
1063 FREE(render);
1064 }
1065
1066 static struct vbuf_render* r300_render_create(struct r300_context* r300)
1067 {
1068 struct r300_render* r300render = CALLOC_STRUCT(r300_render);
1069
1070 r300render->r300 = r300;
1071
1072 r300render->base.max_vertex_buffer_bytes = 1024 * 1024;
1073 r300render->base.max_indices = 16 * 1024;
1074
1075 r300render->base.get_vertex_info = r300_render_get_vertex_info;
1076 r300render->base.allocate_vertices = r300_render_allocate_vertices;
1077 r300render->base.map_vertices = r300_render_map_vertices;
1078 r300render->base.unmap_vertices = r300_render_unmap_vertices;
1079 r300render->base.set_primitive = r300_render_set_primitive;
1080 r300render->base.draw_elements = r300_render_draw_elements;
1081 r300render->base.draw_arrays = r300_render_draw_arrays;
1082 r300render->base.release_vertices = r300_render_release_vertices;
1083 r300render->base.destroy = r300_render_destroy;
1084
1085 return &r300render->base;
1086 }
1087
1088 struct draw_stage* r300_draw_stage(struct r300_context* r300)
1089 {
1090 struct vbuf_render* render;
1091 struct draw_stage* stage;
1092
1093 render = r300_render_create(r300);
1094
1095 if (!render) {
1096 return NULL;
1097 }
1098
1099 stage = draw_vbuf_stage(r300->draw, render);
1100
1101 if (!stage) {
1102 render->destroy(render);
1103 return NULL;
1104 }
1105
1106 draw_set_render(r300->draw, render);
1107
1108 return stage;
1109 }
1110
1111 void r300_draw_flush_vbuf(struct r300_context *r300)
1112 {
1113 pipe_resource_reference(&r300->vbo, NULL);
1114 r300->draw_vbo_size = 0;
1115 }
1116
1117 /****************************************************************************
1118 * End of SW TCL functions *
1119 ***************************************************************************/
1120
1121 /* This functions is used to draw a rectangle for the blitter module.
1122 *
1123 * If we rendered a quad, the pixels on the main diagonal
1124 * would be computed and stored twice, which makes the clear/copy codepaths
1125 * somewhat inefficient. Instead we use a rectangular point sprite. */
1126 static void r300_blitter_draw_rectangle(struct blitter_context *blitter,
1127 unsigned x1, unsigned y1,
1128 unsigned x2, unsigned y2,
1129 float depth,
1130 enum blitter_attrib_type type,
1131 const float attrib[4])
1132 {
1133 struct r300_context *r300 = r300_context(util_blitter_get_pipe(blitter));
1134 unsigned last_sprite_coord_enable = r300->sprite_coord_enable;
1135 unsigned width = x2 - x1;
1136 unsigned height = y2 - y1;
1137 unsigned vertex_size =
1138 type == UTIL_BLITTER_ATTRIB_COLOR || !r300->draw ? 8 : 4;
1139 unsigned dwords = 13 + vertex_size +
1140 (type == UTIL_BLITTER_ATTRIB_TEXCOORD ? 7 : 0);
1141 const float zeros[4] = {0, 0, 0, 0};
1142 CS_LOCALS(r300);
1143
1144 r300->context.set_vertex_buffers(&r300->context, 0, NULL);
1145
1146 if (type == UTIL_BLITTER_ATTRIB_TEXCOORD)
1147 r300->sprite_coord_enable = 1;
1148
1149 r300_update_derived_state(r300);
1150
1151 /* Mark some states we don't care about as non-dirty. */
1152 r300->clip_state.dirty = FALSE;
1153 r300->viewport_state.dirty = FALSE;
1154
1155 if (!r300_prepare_for_rendering(r300, PREP_FIRST_DRAW, NULL, dwords, 0, 0))
1156 goto done;
1157
1158 DBG(r300, DBG_DRAW, "r300: draw_rectangle\n");
1159
1160 BEGIN_CS(dwords);
1161 /* Set up GA. */
1162 OUT_CS_REG(R300_GA_POINT_SIZE, (height * 6) | ((width * 6) << 16));
1163
1164 if (type == UTIL_BLITTER_ATTRIB_TEXCOORD) {
1165 /* Set up the GA to generate texcoords. */
1166 OUT_CS_REG(R300_GB_ENABLE, R300_GB_POINT_STUFF_ENABLE |
1167 (R300_GB_TEX_STR << R300_GB_TEX0_SOURCE_SHIFT));
1168 OUT_CS_REG_SEQ(R300_GA_POINT_S0, 4);
1169 OUT_CS_32F(attrib[0]);
1170 OUT_CS_32F(attrib[3]);
1171 OUT_CS_32F(attrib[2]);
1172 OUT_CS_32F(attrib[1]);
1173 }
1174
1175 /* Set up VAP controls. */
1176 OUT_CS_REG(R300_VAP_CLIP_CNTL, R300_CLIP_DISABLE);
1177 OUT_CS_REG(R300_VAP_VTE_CNTL, R300_VTX_XY_FMT | R300_VTX_Z_FMT);
1178 OUT_CS_REG(R300_VAP_VTX_SIZE, vertex_size);
1179 OUT_CS_REG_SEQ(R300_VAP_VF_MAX_VTX_INDX, 2);
1180 OUT_CS(1);
1181 OUT_CS(0);
1182
1183 /* Draw. */
1184 OUT_CS_PKT3(R300_PACKET3_3D_DRAW_IMMD_2, vertex_size);
1185 OUT_CS(R300_VAP_VF_CNTL__PRIM_WALK_VERTEX_EMBEDDED | (1 << 16) |
1186 R300_VAP_VF_CNTL__PRIM_POINTS);
1187
1188 OUT_CS_32F(x1 + width * 0.5f);
1189 OUT_CS_32F(y1 + height * 0.5f);
1190 OUT_CS_32F(depth);
1191 OUT_CS_32F(1);
1192
1193 if (vertex_size == 8) {
1194 if (!attrib)
1195 attrib = zeros;
1196 OUT_CS_TABLE(attrib, 4);
1197 }
1198 END_CS;
1199
1200 done:
1201 /* Restore the state. */
1202 r300_mark_atom_dirty(r300, &r300->clip_state);
1203 r300_mark_atom_dirty(r300, &r300->rs_state);
1204 r300_mark_atom_dirty(r300, &r300->viewport_state);
1205
1206 r300->sprite_coord_enable = last_sprite_coord_enable;
1207 }
1208
1209 static void r300_resource_resolve(struct pipe_context* pipe,
1210 struct pipe_resource* dest,
1211 unsigned dst_layer,
1212 struct pipe_resource* src,
1213 unsigned src_layer)
1214 {
1215 struct r300_context* r300 = r300_context(pipe);
1216 struct pipe_surface* srcsurf, surf_tmpl;
1217 struct r300_aa_state *aa = (struct r300_aa_state*)r300->aa_state.state;
1218 float color[] = {0, 0, 0, 0};
1219
1220 memset(&surf_tmpl, 0, sizeof(surf_tmpl));
1221 surf_tmpl.format = src->format;
1222 surf_tmpl.usage = 0; /* not really a surface hence no bind flags */
1223 surf_tmpl.u.tex.level = 0; /* msaa resources cannot have mipmaps */
1224 surf_tmpl.u.tex.first_layer = src_layer;
1225 surf_tmpl.u.tex.last_layer = src_layer;
1226 srcsurf = pipe->create_surface(pipe, src, &surf_tmpl);
1227 surf_tmpl.format = dest->format;
1228 surf_tmpl.u.tex.first_layer = dst_layer;
1229 surf_tmpl.u.tex.last_layer = dst_layer;
1230
1231 DBG(r300, DBG_DRAW, "r300: Resolving resource...\n");
1232
1233 /* Enable AA resolve. */
1234 aa->dest = r300_surface(pipe->create_surface(pipe, dest, &surf_tmpl));
1235
1236 aa->aaresolve_ctl =
1237 R300_RB3D_AARESOLVE_CTL_AARESOLVE_MODE_RESOLVE |
1238 R300_RB3D_AARESOLVE_CTL_AARESOLVE_ALPHA_AVERAGE;
1239 r300->aa_state.size = 12;
1240 r300_mark_atom_dirty(r300, &r300->aa_state);
1241
1242 /* Resolve the surface. */
1243 r300->context.clear_render_target(pipe,
1244 srcsurf, color, 0, 0, src->width0, src->height0);
1245
1246 /* Disable AA resolve. */
1247 aa->aaresolve_ctl = 0;
1248 r300->aa_state.size = 4;
1249 r300_mark_atom_dirty(r300, &r300->aa_state);
1250
1251 pipe_surface_reference((struct pipe_surface**)&srcsurf, NULL);
1252 pipe_surface_reference((struct pipe_surface**)&aa->dest, NULL);
1253 }
1254
1255 void r300_init_render_functions(struct r300_context *r300)
1256 {
1257 /* Set draw functions based on presence of HW TCL. */
1258 if (r300->screen->caps.has_tcl) {
1259 r300->context.draw_vbo = r300_draw_vbo;
1260 } else {
1261 r300->context.draw_vbo = r300_swtcl_draw_vbo;
1262 }
1263
1264 r300->context.resource_resolve = r300_resource_resolve;
1265 r300->blitter->draw_rectangle = r300_blitter_draw_rectangle;
1266
1267 /* Plug in the two-sided stencil reference value fallback if needed. */
1268 if (!r300->screen->caps.is_r500)
1269 r300_plug_in_stencil_ref_fallback(r300);
1270 }