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
r300_translate_primitive(unsigned prim)47 static uint32_t r300_translate_primitive(unsigned prim)
48 {
49 static const int prim_conv[] = {
50 R300_VAP_VF_CNTL__PRIM_POINTS,
51 R300_VAP_VF_CNTL__PRIM_LINES,
52 R300_VAP_VF_CNTL__PRIM_LINE_LOOP,
53 R300_VAP_VF_CNTL__PRIM_LINE_STRIP,
54 R300_VAP_VF_CNTL__PRIM_TRIANGLES,
55 R300_VAP_VF_CNTL__PRIM_TRIANGLE_STRIP,
56 R300_VAP_VF_CNTL__PRIM_TRIANGLE_FAN,
57 R300_VAP_VF_CNTL__PRIM_QUADS,
58 R300_VAP_VF_CNTL__PRIM_QUAD_STRIP,
59 R300_VAP_VF_CNTL__PRIM_POLYGON,
60 -1,
61 -1,
62 -1,
63 -1
64 };
65 unsigned hwprim = prim_conv[prim];
66
67 assert(hwprim != -1);
68 return hwprim;
69 }
70
r300_provoking_vertex_fixes(struct r300_context * r300,unsigned mode)71 static uint32_t r300_provoking_vertex_fixes(struct r300_context *r300,
72 unsigned mode)
73 {
74 struct r300_rs_state* rs = (struct r300_rs_state*)r300->rs_state.state;
75 uint32_t color_control = rs->color_control;
76
77 /* By default (see r300_state.c:r300_create_rs_state) color_control is
78 * initialized to provoking the first vertex.
79 *
80 * Triangle fans must be reduced to the second vertex, not the first, in
81 * Gallium flatshade-first mode, as per the GL spec.
82 * (http://www.opengl.org/registry/specs/ARB/provoking_vertex.txt)
83 *
84 * Quads never provoke correctly in flatshade-first mode. The first
85 * vertex is never considered as provoking, so only the second, third,
86 * and fourth vertices can be selected, and both "third" and "last" modes
87 * select the fourth vertex. This is probably due to D3D lacking quads.
88 *
89 * Similarly, polygons reduce to the first, not the last, vertex, when in
90 * "last" mode, and all other modes start from the second vertex.
91 *
92 * ~ C.
93 */
94
95 if (rs->rs.flatshade_first) {
96 switch (mode) {
97 case PIPE_PRIM_TRIANGLE_FAN:
98 color_control |= R300_GA_COLOR_CONTROL_PROVOKING_VERTEX_SECOND;
99 break;
100 case PIPE_PRIM_QUADS:
101 case PIPE_PRIM_QUAD_STRIP:
102 case PIPE_PRIM_POLYGON:
103 color_control |= R300_GA_COLOR_CONTROL_PROVOKING_VERTEX_LAST;
104 break;
105 default:
106 color_control |= R300_GA_COLOR_CONTROL_PROVOKING_VERTEX_FIRST;
107 break;
108 }
109 } else {
110 color_control |= R300_GA_COLOR_CONTROL_PROVOKING_VERTEX_LAST;
111 }
112
113 return color_control;
114 }
115
r500_emit_index_bias(struct r300_context * r300,int index_bias)116 void r500_emit_index_bias(struct r300_context *r300, int index_bias)
117 {
118 CS_LOCALS(r300);
119
120 BEGIN_CS(2);
121 OUT_CS_REG(R500_VAP_INDEX_OFFSET,
122 (index_bias & 0xFFFFFF) | (index_bias < 0 ? 1<<24 : 0));
123 END_CS;
124 }
125
r300_emit_draw_init(struct r300_context * r300,unsigned mode,unsigned max_index)126 static void r300_emit_draw_init(struct r300_context *r300, unsigned mode,
127 unsigned max_index)
128 {
129 CS_LOCALS(r300);
130
131 assert(max_index < (1 << 24));
132
133 BEGIN_CS(5);
134 OUT_CS_REG(R300_GA_COLOR_CONTROL,
135 r300_provoking_vertex_fixes(r300, mode));
136 OUT_CS_REG_SEQ(R300_VAP_VF_MAX_VTX_INDX, 2);
137 OUT_CS(max_index);
138 OUT_CS(0);
139 END_CS;
140 }
141
142 /* This function splits the index bias value into two parts:
143 * - buffer_offset: the value that can be safely added to buffer offsets
144 * in r300_emit_vertex_arrays (it must yield a positive offset when added to
145 * a vertex buffer offset)
146 * - index_offset: the value that must be manually subtracted from indices
147 * in an index buffer to achieve negative offsets. */
r300_split_index_bias(struct r300_context * r300,int index_bias,int * buffer_offset,int * index_offset)148 static void r300_split_index_bias(struct r300_context *r300, int index_bias,
149 int *buffer_offset, int *index_offset)
150 {
151 struct pipe_vertex_buffer *vb, *vbufs = r300->vertex_buffer;
152 struct pipe_vertex_element *velem = r300->velems->velem;
153 unsigned i, size;
154 int max_neg_bias;
155
156 if (index_bias < 0) {
157 /* See how large index bias we may subtract. We must be careful
158 * here because negative buffer offsets are not allowed
159 * by the DRM API. */
160 max_neg_bias = INT_MAX;
161 for (i = 0; i < r300->velems->count; i++) {
162 vb = &vbufs[velem[i].vertex_buffer_index];
163 size = (vb->buffer_offset + velem[i].src_offset) / vb->stride;
164 max_neg_bias = MIN2(max_neg_bias, size);
165 }
166
167 /* Now set the minimum allowed value. */
168 *buffer_offset = MAX2(-max_neg_bias, index_bias);
169 } else {
170 /* A positive index bias is OK. */
171 *buffer_offset = index_bias;
172 }
173
174 *index_offset = index_bias - *buffer_offset;
175 }
176
177 enum r300_prepare_flags {
178 PREP_EMIT_STATES = (1 << 0), /* call emit_dirty_state and friends? */
179 PREP_VALIDATE_VBOS = (1 << 1), /* validate VBOs? */
180 PREP_EMIT_VARRAYS = (1 << 2), /* call emit_vertex_arrays? */
181 PREP_EMIT_VARRAYS_SWTCL = (1 << 3), /* call emit_vertex_arrays_swtcl? */
182 PREP_INDEXED = (1 << 4) /* is this draw_elements? */
183 };
184
185 /**
186 * Check if the requested number of dwords is available in the CS and
187 * if not, flush.
188 * \param r300 The context.
189 * \param flags See r300_prepare_flags.
190 * \param cs_dwords The number of dwords to reserve in CS.
191 * \return TRUE if the CS was flushed
192 */
r300_reserve_cs_dwords(struct r300_context * r300,enum r300_prepare_flags flags,unsigned cs_dwords)193 static boolean r300_reserve_cs_dwords(struct r300_context *r300,
194 enum r300_prepare_flags flags,
195 unsigned cs_dwords)
196 {
197 boolean flushed = FALSE;
198 boolean emit_states = flags & PREP_EMIT_STATES;
199 boolean emit_vertex_arrays = flags & PREP_EMIT_VARRAYS;
200 boolean emit_vertex_arrays_swtcl = flags & PREP_EMIT_VARRAYS_SWTCL;
201
202 /* Add dirty state, index offset, and AOS. */
203 if (emit_states)
204 cs_dwords += r300_get_num_dirty_dwords(r300);
205
206 if (r300->screen->caps.is_r500)
207 cs_dwords += 2; /* emit_index_offset */
208
209 if (emit_vertex_arrays)
210 cs_dwords += 55; /* emit_vertex_arrays */
211
212 if (emit_vertex_arrays_swtcl)
213 cs_dwords += 7; /* emit_vertex_arrays_swtcl */
214
215 cs_dwords += r300_get_num_cs_end_dwords(r300);
216
217 /* Reserve requested CS space. */
218 if (cs_dwords > (RADEON_MAX_CMDBUF_DWORDS - r300->cs->cdw)) {
219 r300_flush(&r300->context, RADEON_FLUSH_ASYNC, NULL);
220 flushed = TRUE;
221 }
222
223 return flushed;
224 }
225
226 /**
227 * Validate buffers and emit dirty state.
228 * \param r300 The context.
229 * \param flags See r300_prepare_flags.
230 * \param index_buffer The index buffer to validate. The parameter may be NULL.
231 * \param buffer_offset The offset passed to emit_vertex_arrays.
232 * \param index_bias The index bias to emit.
233 * \param instance_id Index of instance to render
234 * \return TRUE if rendering should be skipped
235 */
r300_emit_states(struct r300_context * r300,enum r300_prepare_flags flags,struct pipe_resource * index_buffer,int buffer_offset,int index_bias,int instance_id)236 static boolean r300_emit_states(struct r300_context *r300,
237 enum r300_prepare_flags flags,
238 struct pipe_resource *index_buffer,
239 int buffer_offset,
240 int index_bias, int instance_id)
241 {
242 boolean emit_states = flags & PREP_EMIT_STATES;
243 boolean emit_vertex_arrays = flags & PREP_EMIT_VARRAYS;
244 boolean emit_vertex_arrays_swtcl = flags & PREP_EMIT_VARRAYS_SWTCL;
245 boolean indexed = flags & PREP_INDEXED;
246 boolean validate_vbos = flags & PREP_VALIDATE_VBOS;
247
248 /* Validate buffers and emit dirty state if needed. */
249 if (emit_states || (emit_vertex_arrays && validate_vbos)) {
250 if (!r300_emit_buffer_validate(r300, validate_vbos,
251 index_buffer)) {
252 fprintf(stderr, "r300: CS space validation failed. "
253 "(not enough memory?) Skipping rendering.\n");
254 return FALSE;
255 }
256 }
257
258 if (emit_states)
259 r300_emit_dirty_state(r300);
260
261 if (r300->screen->caps.is_r500) {
262 if (r300->screen->caps.has_tcl)
263 r500_emit_index_bias(r300, index_bias);
264 else
265 r500_emit_index_bias(r300, 0);
266 }
267
268 if (emit_vertex_arrays &&
269 (r300->vertex_arrays_dirty ||
270 r300->vertex_arrays_indexed != indexed ||
271 r300->vertex_arrays_offset != buffer_offset ||
272 r300->vertex_arrays_instance_id != instance_id)) {
273 r300_emit_vertex_arrays(r300, buffer_offset, indexed, instance_id);
274
275 r300->vertex_arrays_dirty = FALSE;
276 r300->vertex_arrays_indexed = indexed;
277 r300->vertex_arrays_offset = buffer_offset;
278 r300->vertex_arrays_instance_id = instance_id;
279 }
280
281 if (emit_vertex_arrays_swtcl)
282 r300_emit_vertex_arrays_swtcl(r300, indexed);
283
284 return TRUE;
285 }
286
287 /**
288 * Check if the requested number of dwords is available in the CS and
289 * if not, flush. Then validate buffers and emit dirty state.
290 * \param r300 The context.
291 * \param flags See r300_prepare_flags.
292 * \param index_buffer The index buffer to validate. The parameter may be NULL.
293 * \param cs_dwords The number of dwords to reserve in CS.
294 * \param buffer_offset The offset passed to emit_vertex_arrays.
295 * \param index_bias The index bias to emit.
296 * \param instance_id The instance to render.
297 * \return TRUE if rendering should be skipped
298 */
r300_prepare_for_rendering(struct r300_context * r300,enum r300_prepare_flags flags,struct pipe_resource * index_buffer,unsigned cs_dwords,int buffer_offset,int index_bias,int instance_id)299 static boolean r300_prepare_for_rendering(struct r300_context *r300,
300 enum r300_prepare_flags flags,
301 struct pipe_resource *index_buffer,
302 unsigned cs_dwords,
303 int buffer_offset,
304 int index_bias,
305 int instance_id)
306 {
307 /* Make sure there is enough space in the command stream and emit states. */
308 if (r300_reserve_cs_dwords(r300, flags, cs_dwords))
309 flags |= PREP_EMIT_STATES;
310
311 return r300_emit_states(r300, flags, index_buffer, buffer_offset,
312 index_bias, instance_id);
313 }
314
immd_is_good_idea(struct r300_context * r300,unsigned count)315 static boolean immd_is_good_idea(struct r300_context *r300,
316 unsigned count)
317 {
318 if (DBG_ON(r300, DBG_NO_IMMD)) {
319 return FALSE;
320 }
321
322 if (count * r300->velems->vertex_size_dwords > IMMD_DWORDS) {
323 return FALSE;
324 }
325
326 /* Buffers can only be used for read by r300 (except query buffers, but
327 * those can't be bound by a state tracker as vertex buffers). */
328 return TRUE;
329 }
330
331 /*****************************************************************************
332 * The HWTCL draw functions. *
333 ****************************************************************************/
334
r300_draw_arrays_immediate(struct r300_context * r300,const struct pipe_draw_info * info)335 static void r300_draw_arrays_immediate(struct r300_context *r300,
336 const struct pipe_draw_info *info)
337 {
338 struct pipe_vertex_element* velem;
339 struct pipe_vertex_buffer* vbuf;
340 unsigned vertex_element_count = r300->velems->count;
341 unsigned i, v, vbi;
342
343 /* Size of the vertex, in dwords. */
344 unsigned vertex_size = r300->velems->vertex_size_dwords;
345
346 /* The number of dwords for this draw operation. */
347 unsigned dwords = 4 + info->count * vertex_size;
348
349 /* Size of the vertex element, in dwords. */
350 unsigned size[PIPE_MAX_ATTRIBS];
351
352 /* Stride to the same attrib in the next vertex in the vertex buffer,
353 * in dwords. */
354 unsigned stride[PIPE_MAX_ATTRIBS];
355
356 /* Mapped vertex buffers. */
357 uint32_t* map[PIPE_MAX_ATTRIBS] = {0};
358 uint32_t* mapelem[PIPE_MAX_ATTRIBS];
359
360 CS_LOCALS(r300);
361
362 if (!r300_prepare_for_rendering(r300, PREP_EMIT_STATES, NULL, dwords, 0, 0, -1))
363 return;
364
365 /* Calculate the vertex size, offsets, strides etc. and map the buffers. */
366 for (i = 0; i < vertex_element_count; i++) {
367 velem = &r300->velems->velem[i];
368 size[i] = r300->velems->format_size[i] / 4;
369 vbi = velem->vertex_buffer_index;
370 vbuf = &r300->vertex_buffer[vbi];
371 stride[i] = vbuf->stride / 4;
372
373 /* Map the buffer. */
374 if (!map[vbi]) {
375 map[vbi] = (uint32_t*)r300->rws->buffer_map(
376 r300_resource(vbuf->buffer)->cs_buf,
377 r300->cs, PIPE_TRANSFER_READ | PIPE_TRANSFER_UNSYNCHRONIZED);
378 map[vbi] += (vbuf->buffer_offset / 4) + stride[i] * info->start;
379 }
380 mapelem[i] = map[vbi] + (velem->src_offset / 4);
381 }
382
383 r300_emit_draw_init(r300, info->mode, info->count-1);
384
385 BEGIN_CS(dwords);
386 OUT_CS_REG(R300_VAP_VTX_SIZE, vertex_size);
387 OUT_CS_PKT3(R300_PACKET3_3D_DRAW_IMMD_2, info->count * vertex_size);
388 OUT_CS(R300_VAP_VF_CNTL__PRIM_WALK_VERTEX_EMBEDDED | (info->count << 16) |
389 r300_translate_primitive(info->mode));
390
391 /* Emit vertices. */
392 for (v = 0; v < info->count; v++) {
393 for (i = 0; i < vertex_element_count; i++) {
394 OUT_CS_TABLE(&mapelem[i][stride[i] * v], size[i]);
395 }
396 }
397 END_CS;
398
399 /* Unmap buffers. */
400 for (i = 0; i < vertex_element_count; i++) {
401 vbi = r300->velems->velem[i].vertex_buffer_index;
402
403 if (map[vbi]) {
404 r300->rws->buffer_unmap(r300_resource(r300->vertex_buffer[vbi].buffer)->cs_buf);
405 map[vbi] = NULL;
406 }
407 }
408 }
409
r300_emit_draw_arrays(struct r300_context * r300,unsigned mode,unsigned count)410 static void r300_emit_draw_arrays(struct r300_context *r300,
411 unsigned mode,
412 unsigned count)
413 {
414 boolean alt_num_verts = count > 65535;
415 CS_LOCALS(r300);
416
417 if (count >= (1 << 24)) {
418 fprintf(stderr, "r300: Got a huge number of vertices: %i, "
419 "refusing to render.\n", count);
420 return;
421 }
422
423 r300_emit_draw_init(r300, mode, count-1);
424
425 BEGIN_CS(2 + (alt_num_verts ? 2 : 0));
426 if (alt_num_verts) {
427 OUT_CS_REG(R500_VAP_ALT_NUM_VERTICES, count);
428 }
429 OUT_CS_PKT3(R300_PACKET3_3D_DRAW_VBUF_2, 0);
430 OUT_CS(R300_VAP_VF_CNTL__PRIM_WALK_VERTEX_LIST | (count << 16) |
431 r300_translate_primitive(mode) |
432 (alt_num_verts ? R500_VAP_VF_CNTL__USE_ALT_NUM_VERTS : 0));
433 END_CS;
434 }
435
r300_emit_draw_elements(struct r300_context * r300,struct pipe_resource * indexBuffer,unsigned indexSize,unsigned max_index,unsigned mode,unsigned start,unsigned count,uint16_t * imm_indices3)436 static void r300_emit_draw_elements(struct r300_context *r300,
437 struct pipe_resource* indexBuffer,
438 unsigned indexSize,
439 unsigned max_index,
440 unsigned mode,
441 unsigned start,
442 unsigned count,
443 uint16_t *imm_indices3)
444 {
445 uint32_t count_dwords, offset_dwords;
446 boolean alt_num_verts = count > 65535;
447 CS_LOCALS(r300);
448
449 if (count >= (1 << 24)) {
450 fprintf(stderr, "r300: Got a huge number of vertices: %i, "
451 "refusing to render (max_index: %i).\n", count, max_index);
452 return;
453 }
454
455 DBG(r300, DBG_DRAW, "r300: Indexbuf of %u indices, max %u\n",
456 count, max_index);
457
458 r300_emit_draw_init(r300, mode, max_index);
459
460 /* If start is odd, render the first triangle with indices embedded
461 * in the command stream. This will increase start by 3 and make it
462 * even. We can then proceed without a fallback. */
463 if (indexSize == 2 && (start & 1) &&
464 mode == PIPE_PRIM_TRIANGLES) {
465 BEGIN_CS(4);
466 OUT_CS_PKT3(R300_PACKET3_3D_DRAW_INDX_2, 2);
467 OUT_CS(R300_VAP_VF_CNTL__PRIM_WALK_INDICES | (3 << 16) |
468 R300_VAP_VF_CNTL__PRIM_TRIANGLES);
469 OUT_CS(imm_indices3[1] << 16 | imm_indices3[0]);
470 OUT_CS(imm_indices3[2]);
471 END_CS;
472
473 start += 3;
474 count -= 3;
475 if (!count)
476 return;
477 }
478
479 offset_dwords = indexSize * start / sizeof(uint32_t);
480
481 BEGIN_CS(8 + (alt_num_verts ? 2 : 0));
482 if (alt_num_verts) {
483 OUT_CS_REG(R500_VAP_ALT_NUM_VERTICES, count);
484 }
485 OUT_CS_PKT3(R300_PACKET3_3D_DRAW_INDX_2, 0);
486 if (indexSize == 4) {
487 count_dwords = count;
488 OUT_CS(R300_VAP_VF_CNTL__PRIM_WALK_INDICES | (count << 16) |
489 R300_VAP_VF_CNTL__INDEX_SIZE_32bit |
490 r300_translate_primitive(mode) |
491 (alt_num_verts ? R500_VAP_VF_CNTL__USE_ALT_NUM_VERTS : 0));
492 } else {
493 count_dwords = (count + 1) / 2;
494 OUT_CS(R300_VAP_VF_CNTL__PRIM_WALK_INDICES | (count << 16) |
495 r300_translate_primitive(mode) |
496 (alt_num_verts ? R500_VAP_VF_CNTL__USE_ALT_NUM_VERTS : 0));
497 }
498
499 OUT_CS_PKT3(R300_PACKET3_INDX_BUFFER, 2);
500 OUT_CS(R300_INDX_BUFFER_ONE_REG_WR | (R300_VAP_PORT_IDX0 >> 2) |
501 (0 << R300_INDX_BUFFER_SKIP_SHIFT));
502 OUT_CS(offset_dwords << 2);
503 OUT_CS(count_dwords);
504 OUT_CS_RELOC(r300_resource(indexBuffer));
505 END_CS;
506 }
507
r300_draw_elements_immediate(struct r300_context * r300,const struct pipe_draw_info * info)508 static void r300_draw_elements_immediate(struct r300_context *r300,
509 const struct pipe_draw_info *info)
510 {
511 const uint8_t *ptr1;
512 const uint16_t *ptr2;
513 const uint32_t *ptr4;
514 unsigned index_size = r300->index_buffer.index_size;
515 unsigned i, count_dwords = index_size == 4 ? info->count :
516 (info->count + 1) / 2;
517 CS_LOCALS(r300);
518
519 /* 19 dwords for r300_draw_elements_immediate. Give up if the function fails. */
520 if (!r300_prepare_for_rendering(r300,
521 PREP_EMIT_STATES | PREP_VALIDATE_VBOS | PREP_EMIT_VARRAYS |
522 PREP_INDEXED, NULL, 2+count_dwords, 0, info->index_bias, -1))
523 return;
524
525 r300_emit_draw_init(r300, info->mode, info->max_index);
526
527 BEGIN_CS(2 + count_dwords);
528 OUT_CS_PKT3(R300_PACKET3_3D_DRAW_INDX_2, count_dwords);
529
530 switch (index_size) {
531 case 1:
532 ptr1 = (uint8_t*)r300->index_buffer.user_buffer;
533 ptr1 += info->start;
534
535 OUT_CS(R300_VAP_VF_CNTL__PRIM_WALK_INDICES | (info->count << 16) |
536 r300_translate_primitive(info->mode));
537
538 if (info->index_bias && !r300->screen->caps.is_r500) {
539 for (i = 0; i < info->count-1; i += 2)
540 OUT_CS(((ptr1[i+1] + info->index_bias) << 16) |
541 (ptr1[i] + info->index_bias));
542
543 if (info->count & 1)
544 OUT_CS(ptr1[i] + info->index_bias);
545 } else {
546 for (i = 0; i < info->count-1; i += 2)
547 OUT_CS(((ptr1[i+1]) << 16) |
548 (ptr1[i] ));
549
550 if (info->count & 1)
551 OUT_CS(ptr1[i]);
552 }
553 break;
554
555 case 2:
556 ptr2 = (uint16_t*)r300->index_buffer.user_buffer;
557 ptr2 += info->start;
558
559 OUT_CS(R300_VAP_VF_CNTL__PRIM_WALK_INDICES | (info->count << 16) |
560 r300_translate_primitive(info->mode));
561
562 if (info->index_bias && !r300->screen->caps.is_r500) {
563 for (i = 0; i < info->count-1; i += 2)
564 OUT_CS(((ptr2[i+1] + info->index_bias) << 16) |
565 (ptr2[i] + info->index_bias));
566
567 if (info->count & 1)
568 OUT_CS(ptr2[i] + info->index_bias);
569 } else {
570 OUT_CS_TABLE(ptr2, count_dwords);
571 }
572 break;
573
574 case 4:
575 ptr4 = (uint32_t*)r300->index_buffer.user_buffer;
576 ptr4 += info->start;
577
578 OUT_CS(R300_VAP_VF_CNTL__PRIM_WALK_INDICES | (info->count << 16) |
579 R300_VAP_VF_CNTL__INDEX_SIZE_32bit |
580 r300_translate_primitive(info->mode));
581
582 if (info->index_bias && !r300->screen->caps.is_r500) {
583 for (i = 0; i < info->count; i++)
584 OUT_CS(ptr4[i] + info->index_bias);
585 } else {
586 OUT_CS_TABLE(ptr4, count_dwords);
587 }
588 break;
589 }
590 END_CS;
591 }
592
r300_draw_elements(struct r300_context * r300,const struct pipe_draw_info * info,int instance_id)593 static void r300_draw_elements(struct r300_context *r300,
594 const struct pipe_draw_info *info,
595 int instance_id)
596 {
597 struct pipe_resource *indexBuffer = r300->index_buffer.buffer;
598 unsigned indexSize = r300->index_buffer.index_size;
599 struct pipe_resource* orgIndexBuffer = indexBuffer;
600 unsigned start = info->start;
601 unsigned count = info->count;
602 boolean alt_num_verts = r300->screen->caps.is_r500 &&
603 count > 65536;
604 unsigned short_count;
605 int buffer_offset = 0, index_offset = 0; /* for index bias emulation */
606 uint16_t indices3[3];
607
608 if (info->index_bias && !r300->screen->caps.is_r500) {
609 r300_split_index_bias(r300, info->index_bias, &buffer_offset,
610 &index_offset);
611 }
612
613 r300_translate_index_buffer(r300, &r300->index_buffer, &indexBuffer,
614 &indexSize, index_offset, &start, count);
615
616 /* Fallback for misaligned ushort indices. */
617 if (indexSize == 2 && (start & 1) && indexBuffer) {
618 /* If we got here, then orgIndexBuffer == indexBuffer. */
619 uint16_t *ptr = r300->rws->buffer_map(r300_resource(orgIndexBuffer)->cs_buf,
620 r300->cs,
621 PIPE_TRANSFER_READ |
622 PIPE_TRANSFER_UNSYNCHRONIZED);
623
624 if (info->mode == PIPE_PRIM_TRIANGLES) {
625 memcpy(indices3, ptr + start, 6);
626 } else {
627 /* Copy the mapped index buffer directly to the upload buffer.
628 * The start index will be aligned simply from the fact that
629 * every sub-buffer in the upload buffer is aligned. */
630 r300_upload_index_buffer(r300, &indexBuffer, indexSize, &start,
631 count, (uint8_t*)ptr);
632 }
633 r300->rws->buffer_unmap(r300_resource(orgIndexBuffer)->cs_buf);
634 } else {
635 if (r300->index_buffer.user_buffer)
636 r300_upload_index_buffer(r300, &indexBuffer, indexSize,
637 &start, count,
638 r300->index_buffer.user_buffer);
639 }
640
641 /* 19 dwords for emit_draw_elements. Give up if the function fails. */
642 if (!r300_prepare_for_rendering(r300,
643 PREP_EMIT_STATES | PREP_VALIDATE_VBOS | PREP_EMIT_VARRAYS |
644 PREP_INDEXED, indexBuffer, 19, buffer_offset, info->index_bias,
645 instance_id))
646 goto done;
647
648 if (alt_num_verts || count <= 65535) {
649 r300_emit_draw_elements(r300, indexBuffer, indexSize,
650 info->max_index, info->mode, start, count,
651 indices3);
652 } else {
653 do {
654 /* The maximum must be divisible by 4 and 3,
655 * so that quad and triangle lists are split correctly.
656 *
657 * Strips, loops, and fans won't work. */
658 short_count = MIN2(count, 65532);
659
660 r300_emit_draw_elements(r300, indexBuffer, indexSize,
661 info->max_index,
662 info->mode, start, short_count, indices3);
663
664 start += short_count;
665 count -= short_count;
666
667 /* 15 dwords for emit_draw_elements */
668 if (count) {
669 if (!r300_prepare_for_rendering(r300,
670 PREP_VALIDATE_VBOS | PREP_EMIT_VARRAYS | PREP_INDEXED,
671 indexBuffer, 19, buffer_offset, info->index_bias,
672 instance_id))
673 goto done;
674 }
675 } while (count);
676 }
677
678 done:
679 if (indexBuffer != orgIndexBuffer) {
680 pipe_resource_reference( &indexBuffer, NULL );
681 }
682 }
683
r300_draw_arrays(struct r300_context * r300,const struct pipe_draw_info * info,int instance_id)684 static void r300_draw_arrays(struct r300_context *r300,
685 const struct pipe_draw_info *info,
686 int instance_id)
687 {
688 boolean alt_num_verts = r300->screen->caps.is_r500 &&
689 info->count > 65536;
690 unsigned start = info->start;
691 unsigned count = info->count;
692 unsigned short_count;
693
694 /* 9 spare dwords for emit_draw_arrays. Give up if the function fails. */
695 if (!r300_prepare_for_rendering(r300,
696 PREP_EMIT_STATES | PREP_VALIDATE_VBOS | PREP_EMIT_VARRAYS,
697 NULL, 9, start, 0, instance_id))
698 return;
699
700 if (alt_num_verts || count <= 65535) {
701 r300_emit_draw_arrays(r300, info->mode, count);
702 } else {
703 do {
704 /* The maximum must be divisible by 4 and 3,
705 * so that quad and triangle lists are split correctly.
706 *
707 * Strips, loops, and fans won't work. */
708 short_count = MIN2(count, 65532);
709 r300_emit_draw_arrays(r300, info->mode, short_count);
710
711 start += short_count;
712 count -= short_count;
713
714 /* 9 spare dwords for emit_draw_arrays. Give up if the function fails. */
715 if (count) {
716 if (!r300_prepare_for_rendering(r300,
717 PREP_VALIDATE_VBOS | PREP_EMIT_VARRAYS, NULL, 9,
718 start, 0, instance_id))
719 return;
720 }
721 } while (count);
722 }
723 }
724
r300_draw_arrays_instanced(struct r300_context * r300,const struct pipe_draw_info * info)725 static void r300_draw_arrays_instanced(struct r300_context *r300,
726 const struct pipe_draw_info *info)
727 {
728 int i;
729
730 for (i = 0; i < info->instance_count; i++)
731 r300_draw_arrays(r300, info, i);
732 }
733
r300_draw_elements_instanced(struct r300_context * r300,const struct pipe_draw_info * info)734 static void r300_draw_elements_instanced(struct r300_context *r300,
735 const struct pipe_draw_info *info)
736 {
737 int i;
738
739 for (i = 0; i < info->instance_count; i++)
740 r300_draw_elements(r300, info, i);
741 }
742
r300_max_vertex_count(struct r300_context * r300)743 static unsigned r300_max_vertex_count(struct r300_context *r300)
744 {
745 unsigned i, nr = r300->velems->count;
746 struct pipe_vertex_element *velems = r300->velems->velem;
747 unsigned result = ~0;
748
749 for (i = 0; i < nr; i++) {
750 struct pipe_vertex_buffer *vb =
751 &r300->vertex_buffer[velems[i].vertex_buffer_index];
752 unsigned size, max_count, value;
753
754 /* We're not interested in constant and per-instance attribs. */
755 if (!vb->buffer ||
756 !vb->stride ||
757 velems[i].instance_divisor) {
758 continue;
759 }
760
761 size = vb->buffer->width0;
762
763 /* Subtract buffer_offset. */
764 value = vb->buffer_offset;
765 if (value >= size) {
766 return 0;
767 }
768 size -= value;
769
770 /* Subtract src_offset. */
771 value = velems[i].src_offset;
772 if (value >= size) {
773 return 0;
774 }
775 size -= value;
776
777 /* Subtract format_size. */
778 value = r300->velems->format_size[i];
779 if (value >= size) {
780 return 0;
781 }
782 size -= value;
783
784 /* Compute the max count. */
785 max_count = 1 + size / vb->stride;
786 result = MIN2(result, max_count);
787 }
788 return result;
789 }
790
791
r300_draw_vbo(struct pipe_context * pipe,const struct pipe_draw_info * dinfo)792 static void r300_draw_vbo(struct pipe_context* pipe,
793 const struct pipe_draw_info *dinfo)
794 {
795 struct r300_context* r300 = r300_context(pipe);
796 struct pipe_draw_info info = *dinfo;
797
798 info.indexed = info.indexed;
799
800 if (r300->skip_rendering ||
801 !u_trim_pipe_prim(info.mode, &info.count)) {
802 return;
803 }
804
805 r300_update_derived_state(r300);
806
807 /* Draw. */
808 if (info.indexed) {
809 unsigned max_count = r300_max_vertex_count(r300);
810
811 if (!max_count) {
812 fprintf(stderr, "r300: Skipping a draw command. There is a buffer "
813 " which is too small to be used for rendering.\n");
814 return;
815 }
816
817 if (max_count == ~0) {
818 /* There are no per-vertex vertex elements. Use the hardware maximum. */
819 max_count = 0xffffff;
820 }
821
822 info.max_index = max_count - 1;
823 info.start += r300->index_buffer.offset / r300->index_buffer.index_size;
824
825 if (info.instance_count <= 1) {
826 if (info.count <= 8 &&
827 r300->index_buffer.user_buffer) {
828 r300_draw_elements_immediate(r300, &info);
829 } else {
830 r300_draw_elements(r300, &info, -1);
831 }
832 } else {
833 r300_draw_elements_instanced(r300, &info);
834 }
835 } else {
836 if (info.instance_count <= 1) {
837 if (immd_is_good_idea(r300, info.count)) {
838 r300_draw_arrays_immediate(r300, &info);
839 } else {
840 r300_draw_arrays(r300, &info, -1);
841 }
842 } else {
843 r300_draw_arrays_instanced(r300, &info);
844 }
845 }
846 }
847
848 /****************************************************************************
849 * The rest of this file is for SW TCL rendering only. Please be polite and *
850 * keep these functions separated so that they are easier to locate. ~C. *
851 ***************************************************************************/
852
853 /* SW TCL elements, using Draw. */
r300_swtcl_draw_vbo(struct pipe_context * pipe,const struct pipe_draw_info * info)854 static void r300_swtcl_draw_vbo(struct pipe_context* pipe,
855 const struct pipe_draw_info *info)
856 {
857 struct r300_context* r300 = r300_context(pipe);
858 boolean indexed = info->indexed;
859
860 if (r300->skip_rendering) {
861 return;
862 }
863
864 r300_update_derived_state(r300);
865
866 r300_reserve_cs_dwords(r300,
867 PREP_EMIT_STATES | PREP_EMIT_VARRAYS_SWTCL |
868 (indexed ? PREP_INDEXED : 0),
869 indexed ? 256 : 6);
870
871 r300->draw_vbo_locked = TRUE;
872 r300->draw_first_emitted = FALSE;
873 draw_vbo(r300->draw, info);
874 draw_flush(r300->draw);
875 r300->draw_vbo_locked = FALSE;
876 }
877
878 /* Object for rendering using Draw. */
879 struct r300_render {
880 /* Parent class */
881 struct vbuf_render base;
882
883 /* Pipe context */
884 struct r300_context* r300;
885
886 /* Vertex information */
887 size_t vertex_size;
888 unsigned prim;
889 unsigned hwprim;
890
891 /* VBO */
892 size_t vbo_max_used;
893 void * vbo_ptr;
894
895 struct pipe_transfer *vbo_transfer;
896 };
897
898 static INLINE struct r300_render*
r300_render(struct vbuf_render * render)899 r300_render(struct vbuf_render* render)
900 {
901 return (struct r300_render*)render;
902 }
903
904 static const struct vertex_info*
r300_render_get_vertex_info(struct vbuf_render * render)905 r300_render_get_vertex_info(struct vbuf_render* render)
906 {
907 struct r300_render* r300render = r300_render(render);
908 struct r300_context* r300 = r300render->r300;
909
910 return &r300->vertex_info;
911 }
912
r300_render_allocate_vertices(struct vbuf_render * render,ushort vertex_size,ushort count)913 static boolean r300_render_allocate_vertices(struct vbuf_render* render,
914 ushort vertex_size,
915 ushort count)
916 {
917 struct r300_render* r300render = r300_render(render);
918 struct r300_context* r300 = r300render->r300;
919 struct pipe_screen* screen = r300->context.screen;
920 size_t size = (size_t)vertex_size * (size_t)count;
921
922 DBG(r300, DBG_DRAW, "r300: render_allocate_vertices (size: %d)\n", size);
923
924 if (size + r300->draw_vbo_offset > r300->draw_vbo_size)
925 {
926 pipe_resource_reference(&r300->vbo, NULL);
927 r300->vbo = pipe_buffer_create(screen,
928 PIPE_BIND_CUSTOM,
929 PIPE_USAGE_STREAM,
930 R300_MAX_DRAW_VBO_SIZE);
931 r300->draw_vbo_offset = 0;
932 r300->draw_vbo_size = R300_MAX_DRAW_VBO_SIZE;
933 }
934
935 r300render->vertex_size = vertex_size;
936
937 return (r300->vbo) ? TRUE : FALSE;
938 }
939
r300_render_map_vertices(struct vbuf_render * render)940 static void* r300_render_map_vertices(struct vbuf_render* render)
941 {
942 struct r300_render* r300render = r300_render(render);
943 struct r300_context* r300 = r300render->r300;
944
945 assert(!r300render->vbo_transfer);
946
947 DBG(r300, DBG_DRAW, "r300: render_map_vertices\n");
948
949 r300render->vbo_ptr = pipe_buffer_map(&r300render->r300->context,
950 r300->vbo,
951 PIPE_TRANSFER_WRITE |
952 PIPE_TRANSFER_UNSYNCHRONIZED,
953 &r300render->vbo_transfer);
954
955 assert(r300render->vbo_ptr);
956
957 return ((uint8_t*)r300render->vbo_ptr + r300->draw_vbo_offset);
958 }
959
r300_render_unmap_vertices(struct vbuf_render * render,ushort min,ushort max)960 static void r300_render_unmap_vertices(struct vbuf_render* render,
961 ushort min,
962 ushort max)
963 {
964 struct r300_render* r300render = r300_render(render);
965 struct pipe_context* context = &r300render->r300->context;
966 struct r300_context* r300 = r300render->r300;
967
968 assert(r300render->vbo_transfer);
969
970 DBG(r300, DBG_DRAW, "r300: render_unmap_vertices\n");
971
972 r300render->vbo_max_used = MAX2(r300render->vbo_max_used,
973 r300render->vertex_size * (max + 1));
974 pipe_buffer_unmap(context, r300render->vbo_transfer);
975
976 r300render->vbo_transfer = NULL;
977 }
978
r300_render_release_vertices(struct vbuf_render * render)979 static void r300_render_release_vertices(struct vbuf_render* render)
980 {
981 struct r300_render* r300render = r300_render(render);
982 struct r300_context* r300 = r300render->r300;
983
984 DBG(r300, DBG_DRAW, "r300: render_release_vertices\n");
985
986 r300->draw_vbo_offset += r300render->vbo_max_used;
987 r300render->vbo_max_used = 0;
988 }
989
r300_render_set_primitive(struct vbuf_render * render,unsigned prim)990 static void r300_render_set_primitive(struct vbuf_render* render,
991 unsigned prim)
992 {
993 struct r300_render* r300render = r300_render(render);
994
995 r300render->prim = prim;
996 r300render->hwprim = r300_translate_primitive(prim);
997 }
998
r300_render_draw_arrays(struct vbuf_render * render,unsigned start,unsigned count)999 static void r300_render_draw_arrays(struct vbuf_render* render,
1000 unsigned start,
1001 unsigned count)
1002 {
1003 struct r300_render* r300render = r300_render(render);
1004 struct r300_context* r300 = r300render->r300;
1005 uint8_t* ptr;
1006 unsigned i;
1007 unsigned dwords = 6;
1008
1009 CS_LOCALS(r300);
1010 (void) i; (void) ptr;
1011
1012 DBG(r300, DBG_DRAW, "r300: render_draw_arrays (count: %d)\n", count);
1013
1014 if (r300->draw_first_emitted) {
1015 if (!r300_prepare_for_rendering(r300,
1016 PREP_EMIT_STATES | PREP_EMIT_VARRAYS_SWTCL,
1017 NULL, dwords, 0, 0, -1))
1018 return;
1019 } else {
1020 if (!r300_emit_states(r300,
1021 PREP_EMIT_STATES | PREP_EMIT_VARRAYS_SWTCL,
1022 NULL, 0, 0, -1))
1023 return;
1024 }
1025
1026 BEGIN_CS(dwords);
1027 OUT_CS_REG(R300_GA_COLOR_CONTROL,
1028 r300_provoking_vertex_fixes(r300, r300render->prim));
1029 OUT_CS_REG(R300_VAP_VF_MAX_VTX_INDX, count - 1);
1030 OUT_CS_PKT3(R300_PACKET3_3D_DRAW_VBUF_2, 0);
1031 OUT_CS(R300_VAP_VF_CNTL__PRIM_WALK_VERTEX_LIST | (count << 16) |
1032 r300render->hwprim);
1033 END_CS;
1034
1035 r300->draw_first_emitted = TRUE;
1036 }
1037
r300_render_draw_elements(struct vbuf_render * render,const ushort * indices,uint count)1038 static void r300_render_draw_elements(struct vbuf_render* render,
1039 const ushort* indices,
1040 uint count)
1041 {
1042 struct r300_render* r300render = r300_render(render);
1043 struct r300_context* r300 = r300render->r300;
1044 int i;
1045 unsigned end_cs_dwords;
1046 unsigned max_index = (r300->draw_vbo_size - r300->draw_vbo_offset) /
1047 (r300render->r300->vertex_info.size * 4) - 1;
1048 unsigned short_count;
1049 unsigned free_dwords;
1050
1051 CS_LOCALS(r300);
1052 DBG(r300, DBG_DRAW, "r300: render_draw_elements (count: %d)\n", count);
1053
1054 if (r300->draw_first_emitted) {
1055 if (!r300_prepare_for_rendering(r300,
1056 PREP_EMIT_STATES | PREP_EMIT_VARRAYS_SWTCL | PREP_INDEXED,
1057 NULL, 256, 0, 0, -1))
1058 return;
1059 } else {
1060 if (!r300_emit_states(r300,
1061 PREP_EMIT_STATES | PREP_EMIT_VARRAYS_SWTCL | PREP_INDEXED,
1062 NULL, 0, 0, -1))
1063 return;
1064 }
1065
1066 /* Below we manage the CS space manually because there may be more
1067 * indices than it can fit in CS. */
1068
1069 end_cs_dwords = r300_get_num_cs_end_dwords(r300);
1070
1071 while (count) {
1072 free_dwords = RADEON_MAX_CMDBUF_DWORDS - r300->cs->cdw;
1073
1074 short_count = MIN2(count, (free_dwords - end_cs_dwords - 6) * 2);
1075
1076 BEGIN_CS(6 + (short_count+1)/2);
1077 OUT_CS_REG(R300_GA_COLOR_CONTROL,
1078 r300_provoking_vertex_fixes(r300, r300render->prim));
1079 OUT_CS_REG(R300_VAP_VF_MAX_VTX_INDX, max_index);
1080 OUT_CS_PKT3(R300_PACKET3_3D_DRAW_INDX_2, (short_count+1)/2);
1081 OUT_CS(R300_VAP_VF_CNTL__PRIM_WALK_INDICES | (short_count << 16) |
1082 r300render->hwprim);
1083 for (i = 0; i < short_count-1; i += 2) {
1084 OUT_CS(indices[i+1] << 16 | indices[i]);
1085 }
1086 if (short_count % 2) {
1087 OUT_CS(indices[short_count-1]);
1088 }
1089 END_CS;
1090
1091 /* OK now subtract the emitted indices and see if we need to emit
1092 * another draw packet. */
1093 indices += short_count;
1094 count -= short_count;
1095
1096 if (count) {
1097 if (!r300_prepare_for_rendering(r300,
1098 PREP_EMIT_VARRAYS_SWTCL | PREP_INDEXED,
1099 NULL, 256, 0, 0, -1))
1100 return;
1101
1102 end_cs_dwords = r300_get_num_cs_end_dwords(r300);
1103 }
1104 }
1105
1106 r300->draw_first_emitted = TRUE;
1107 }
1108
r300_render_destroy(struct vbuf_render * render)1109 static void r300_render_destroy(struct vbuf_render* render)
1110 {
1111 FREE(render);
1112 }
1113
r300_render_create(struct r300_context * r300)1114 static struct vbuf_render* r300_render_create(struct r300_context* r300)
1115 {
1116 struct r300_render* r300render = CALLOC_STRUCT(r300_render);
1117
1118 r300render->r300 = r300;
1119
1120 r300render->base.max_vertex_buffer_bytes = 1024 * 1024;
1121 r300render->base.max_indices = 16 * 1024;
1122
1123 r300render->base.get_vertex_info = r300_render_get_vertex_info;
1124 r300render->base.allocate_vertices = r300_render_allocate_vertices;
1125 r300render->base.map_vertices = r300_render_map_vertices;
1126 r300render->base.unmap_vertices = r300_render_unmap_vertices;
1127 r300render->base.set_primitive = r300_render_set_primitive;
1128 r300render->base.draw_elements = r300_render_draw_elements;
1129 r300render->base.draw_arrays = r300_render_draw_arrays;
1130 r300render->base.release_vertices = r300_render_release_vertices;
1131 r300render->base.destroy = r300_render_destroy;
1132
1133 return &r300render->base;
1134 }
1135
r300_draw_stage(struct r300_context * r300)1136 struct draw_stage* r300_draw_stage(struct r300_context* r300)
1137 {
1138 struct vbuf_render* render;
1139 struct draw_stage* stage;
1140
1141 render = r300_render_create(r300);
1142
1143 if (!render) {
1144 return NULL;
1145 }
1146
1147 stage = draw_vbuf_stage(r300->draw, render);
1148
1149 if (!stage) {
1150 render->destroy(render);
1151 return NULL;
1152 }
1153
1154 draw_set_render(r300->draw, render);
1155
1156 return stage;
1157 }
1158
r300_draw_flush_vbuf(struct r300_context * r300)1159 void r300_draw_flush_vbuf(struct r300_context *r300)
1160 {
1161 pipe_resource_reference(&r300->vbo, NULL);
1162 r300->draw_vbo_size = 0;
1163 }
1164
1165 /****************************************************************************
1166 * End of SW TCL functions *
1167 ***************************************************************************/
1168
1169 /* This functions is used to draw a rectangle for the blitter module.
1170 *
1171 * If we rendered a quad, the pixels on the main diagonal
1172 * would be computed and stored twice, which makes the clear/copy codepaths
1173 * somewhat inefficient. Instead we use a rectangular point sprite. */
r300_blitter_draw_rectangle(struct blitter_context * blitter,unsigned x1,unsigned y1,unsigned x2,unsigned y2,float depth,enum blitter_attrib_type type,const union pipe_color_union * attrib)1174 void r300_blitter_draw_rectangle(struct blitter_context *blitter,
1175 unsigned x1, unsigned y1,
1176 unsigned x2, unsigned y2,
1177 float depth,
1178 enum blitter_attrib_type type,
1179 const union pipe_color_union *attrib)
1180 {
1181 struct r300_context *r300 = r300_context(util_blitter_get_pipe(blitter));
1182 unsigned last_sprite_coord_enable = r300->sprite_coord_enable;
1183 unsigned width = x2 - x1;
1184 unsigned height = y2 - y1;
1185 unsigned vertex_size =
1186 type == UTIL_BLITTER_ATTRIB_COLOR || !r300->draw ? 8 : 4;
1187 unsigned dwords = 13 + vertex_size +
1188 (type == UTIL_BLITTER_ATTRIB_TEXCOORD ? 7 : 0);
1189 static const union pipe_color_union zeros;
1190 CS_LOCALS(r300);
1191
1192 if (r300->skip_rendering)
1193 return;
1194
1195 r300->context.set_vertex_buffers(&r300->context, 0, NULL);
1196
1197 if (type == UTIL_BLITTER_ATTRIB_TEXCOORD)
1198 r300->sprite_coord_enable = 1;
1199
1200 r300_update_derived_state(r300);
1201
1202 /* Mark some states we don't care about as non-dirty. */
1203 r300->viewport_state.dirty = FALSE;
1204
1205 if (!r300_prepare_for_rendering(r300, PREP_EMIT_STATES, NULL, dwords, 0, 0, -1))
1206 goto done;
1207
1208 DBG(r300, DBG_DRAW, "r300: draw_rectangle\n");
1209
1210 BEGIN_CS(dwords);
1211 /* Set up GA. */
1212 OUT_CS_REG(R300_GA_POINT_SIZE, (height * 6) | ((width * 6) << 16));
1213
1214 if (type == UTIL_BLITTER_ATTRIB_TEXCOORD) {
1215 /* Set up the GA to generate texcoords. */
1216 OUT_CS_REG(R300_GB_ENABLE, R300_GB_POINT_STUFF_ENABLE |
1217 (R300_GB_TEX_STR << R300_GB_TEX0_SOURCE_SHIFT));
1218 OUT_CS_REG_SEQ(R300_GA_POINT_S0, 4);
1219 OUT_CS_32F(attrib->f[0]);
1220 OUT_CS_32F(attrib->f[3]);
1221 OUT_CS_32F(attrib->f[2]);
1222 OUT_CS_32F(attrib->f[1]);
1223 }
1224
1225 /* Set up VAP controls. */
1226 OUT_CS_REG(R300_VAP_CLIP_CNTL, R300_CLIP_DISABLE);
1227 OUT_CS_REG(R300_VAP_VTE_CNTL, R300_VTX_XY_FMT | R300_VTX_Z_FMT);
1228 OUT_CS_REG(R300_VAP_VTX_SIZE, vertex_size);
1229 OUT_CS_REG_SEQ(R300_VAP_VF_MAX_VTX_INDX, 2);
1230 OUT_CS(1);
1231 OUT_CS(0);
1232
1233 /* Draw. */
1234 OUT_CS_PKT3(R300_PACKET3_3D_DRAW_IMMD_2, vertex_size);
1235 OUT_CS(R300_VAP_VF_CNTL__PRIM_WALK_VERTEX_EMBEDDED | (1 << 16) |
1236 R300_VAP_VF_CNTL__PRIM_POINTS);
1237
1238 OUT_CS_32F(x1 + width * 0.5f);
1239 OUT_CS_32F(y1 + height * 0.5f);
1240 OUT_CS_32F(depth);
1241 OUT_CS_32F(1);
1242
1243 if (vertex_size == 8) {
1244 if (!attrib)
1245 attrib = &zeros;
1246 OUT_CS_TABLE(attrib->f, 4);
1247 }
1248 END_CS;
1249
1250 done:
1251 /* Restore the state. */
1252 r300_mark_atom_dirty(r300, &r300->rs_state);
1253 r300_mark_atom_dirty(r300, &r300->viewport_state);
1254
1255 r300->sprite_coord_enable = last_sprite_coord_enable;
1256 }
1257
r300_resource_resolve(struct pipe_context * pipe,const struct pipe_resolve_info * info)1258 static void r300_resource_resolve(struct pipe_context *pipe,
1259 const struct pipe_resolve_info *info)
1260 {
1261 struct r300_context *r300 = r300_context(pipe);
1262 struct pipe_surface *srcsurf, *dstsurf, surf_tmpl;
1263 struct r300_aa_state *aa = (struct r300_aa_state*)r300->aa_state.state;
1264 static const union pipe_color_union color;
1265
1266 assert(0 && "Resource resolve is unsupported, invalid call.");
1267
1268 memset(&surf_tmpl, 0, sizeof(surf_tmpl));
1269 surf_tmpl.format = info->src.res->format;
1270 surf_tmpl.u.tex.first_layer =
1271 surf_tmpl.u.tex.last_layer = info->src.layer;
1272 srcsurf = pipe->create_surface(pipe, info->src.res, &surf_tmpl);
1273 /* XXX Offset both surfaces by x0,y1. */
1274
1275 surf_tmpl.format = info->dst.res->format;
1276 surf_tmpl.u.tex.level = info->dst.level;
1277 surf_tmpl.u.tex.first_layer =
1278 surf_tmpl.u.tex.last_layer = info->dst.layer;
1279 dstsurf = pipe->create_surface(pipe, info->dst.res, &surf_tmpl);
1280
1281 DBG(r300, DBG_DRAW, "r300: Resolving resource...\n");
1282
1283 /* Enable AA resolve. */
1284 aa->dest = r300_surface(dstsurf);
1285 aa->aaresolve_ctl =
1286 R300_RB3D_AARESOLVE_CTL_AARESOLVE_MODE_RESOLVE |
1287 R300_RB3D_AARESOLVE_CTL_AARESOLVE_ALPHA_AVERAGE;
1288 r300->aa_state.size = 10;
1289 r300_mark_atom_dirty(r300, &r300->aa_state);
1290
1291 /* Resolve the surface. */
1292 /* XXX: y1 < 0 ==> Y flip */
1293 r300->context.clear_render_target(pipe,
1294 srcsurf, &color, 0, 0,
1295 info->dst.x1 - info->dst.x0,
1296 info->dst.y1 - info->dst.y0);
1297
1298 /* Disable AA resolve. */
1299 aa->dest = NULL;
1300 aa->aaresolve_ctl = 0;
1301 r300->aa_state.size = 4;
1302 r300_mark_atom_dirty(r300, &r300->aa_state);
1303
1304 pipe_surface_reference(&srcsurf, NULL);
1305 pipe_surface_reference(&dstsurf, NULL);
1306 }
1307
r300_init_render_functions(struct r300_context * r300)1308 void r300_init_render_functions(struct r300_context *r300)
1309 {
1310 /* Set draw functions based on presence of HW TCL. */
1311 if (r300->screen->caps.has_tcl) {
1312 r300->context.draw_vbo = r300_draw_vbo;
1313 } else {
1314 r300->context.draw_vbo = r300_swtcl_draw_vbo;
1315 }
1316
1317 r300->context.resource_resolve = r300_resource_resolve;
1318
1319 /* Plug in the two-sided stencil reference value fallback if needed. */
1320 if (!r300->screen->caps.is_r500)
1321 r300_plug_in_stencil_ref_fallback(r300);
1322 }
1323