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/format/u_format.h" 33#include "util/u_draw.h" 34#include "util/u_memory.h" 35#include "util/u_upload_mgr.h" 36#include "util/u_prim.h" 37 38#include "r300_cs.h" 39#include "r300_context.h" 40#include "r300_screen_buffer.h" 41#include "r300_emit.h" 42#include "r300_reg.h" 43#include "r300_vs.h" 44 45#include <limits.h> 46 47#define IMMD_DWORDS 32 48 49static uint32_t r300_translate_primitive(unsigned prim) 50{ 51 static const int prim_conv[] = { 52 R300_VAP_VF_CNTL__PRIM_POINTS, 53 R300_VAP_VF_CNTL__PRIM_LINES, 54 R300_VAP_VF_CNTL__PRIM_LINE_LOOP, 55 R300_VAP_VF_CNTL__PRIM_LINE_STRIP, 56 R300_VAP_VF_CNTL__PRIM_TRIANGLES, 57 R300_VAP_VF_CNTL__PRIM_TRIANGLE_STRIP, 58 R300_VAP_VF_CNTL__PRIM_TRIANGLE_FAN, 59 R300_VAP_VF_CNTL__PRIM_QUADS, 60 R300_VAP_VF_CNTL__PRIM_QUAD_STRIP, 61 R300_VAP_VF_CNTL__PRIM_POLYGON, 62 -1, 63 -1, 64 -1, 65 -1 66 }; 67 unsigned hwprim = prim_conv[prim]; 68 69 assert(hwprim != -1); 70 return hwprim; 71} 72 73static uint32_t r300_provoking_vertex_fixes(struct r300_context *r300, 74 unsigned mode) 75{ 76 struct r300_rs_state* rs = (struct r300_rs_state*)r300->rs_state.state; 77 uint32_t color_control = rs->color_control; 78 79 /* By default (see r300_state.c:r300_create_rs_state) color_control is 80 * initialized to provoking the first vertex. 81 * 82 * Triangle fans must be reduced to the second vertex, not the first, in 83 * Gallium flatshade-first mode, as per the GL spec. 84 * (http://www.opengl.org/registry/specs/ARB/provoking_vertex.txt) 85 * 86 * Quads never provoke correctly in flatshade-first mode. The first 87 * vertex is never considered as provoking, so only the second, third, 88 * and fourth vertices can be selected, and both "third" and "last" modes 89 * select the fourth vertex. This is probably due to D3D lacking quads. 90 * 91 * Similarly, polygons reduce to the first, not the last, vertex, when in 92 * "last" mode, and all other modes start from the second vertex. 93 * 94 * ~ C. 95 */ 96 97 if (rs->rs.flatshade_first) { 98 switch (mode) { 99 case PIPE_PRIM_TRIANGLE_FAN: 100 color_control |= R300_GA_COLOR_CONTROL_PROVOKING_VERTEX_SECOND; 101 break; 102 case PIPE_PRIM_QUADS: 103 case PIPE_PRIM_QUAD_STRIP: 104 case PIPE_PRIM_POLYGON: 105 color_control |= R300_GA_COLOR_CONTROL_PROVOKING_VERTEX_LAST; 106 break; 107 default: 108 color_control |= R300_GA_COLOR_CONTROL_PROVOKING_VERTEX_FIRST; 109 break; 110 } 111 } else { 112 color_control |= R300_GA_COLOR_CONTROL_PROVOKING_VERTEX_LAST; 113 } 114 115 return color_control; 116} 117 118void r500_emit_index_bias(struct r300_context *r300, int index_bias) 119{ 120 CS_LOCALS(r300); 121 122 BEGIN_CS(2); 123 OUT_CS_REG(R500_VAP_INDEX_OFFSET, 124 (index_bias & 0xFFFFFF) | (index_bias < 0 ? 1<<24 : 0)); 125 END_CS; 126} 127 128static void r300_emit_draw_init(struct r300_context *r300, unsigned mode, 129 unsigned max_index) 130{ 131 CS_LOCALS(r300); 132 133 assert(max_index < (1 << 24)); 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(0); 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. */ 150static 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->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 179enum r300_prepare_flags { 180 PREP_EMIT_STATES = (1 << 0), /* call emit_dirty_state and friends? */ 181 PREP_VALIDATE_VBOS = (1 << 1), /* validate VBOs? */ 182 PREP_EMIT_VARRAYS = (1 << 2), /* call emit_vertex_arrays? */ 183 PREP_EMIT_VARRAYS_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 */ 195static 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 emit_states = flags & PREP_EMIT_STATES; 201 boolean emit_vertex_arrays = flags & PREP_EMIT_VARRAYS; 202 boolean emit_vertex_arrays_swtcl = flags & PREP_EMIT_VARRAYS_SWTCL; 203 204 /* Add dirty state, index offset, and AOS. */ 205 if (emit_states) 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 cs_dwords += r300_get_num_cs_end_dwords(r300); 218 219 /* Reserve requested CS space. */ 220 if (!r300->rws->cs_check_space(&r300->cs, cs_dwords)) { 221 r300_flush(&r300->context, PIPE_FLUSH_ASYNC, NULL); 222 flushed = TRUE; 223 } 224 225 return flushed; 226} 227 228/** 229 * Validate buffers and emit dirty state. 230 * \param r300 The context. 231 * \param flags See r300_prepare_flags. 232 * \param index_buffer The index buffer to validate. The parameter may be NULL. 233 * \param buffer_offset The offset passed to emit_vertex_arrays. 234 * \param index_bias The index bias to emit. 235 * \param instance_id Index of instance to render 236 * \return TRUE if rendering should be skipped 237 */ 238static 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, int instance_id) 243{ 244 boolean emit_states = flags & PREP_EMIT_STATES; 245 boolean emit_vertex_arrays = flags & PREP_EMIT_VARRAYS; 246 boolean emit_vertex_arrays_swtcl = flags & PREP_EMIT_VARRAYS_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 (emit_states || (emit_vertex_arrays && validate_vbos)) { 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 } 259 260 if (emit_states) 261 r300_emit_dirty_state(r300); 262 263 if (r300->screen->caps.is_r500) { 264 if (r300->screen->caps.has_tcl) 265 r500_emit_index_bias(r300, index_bias); 266 else 267 r500_emit_index_bias(r300, 0); 268 } 269 270 if (emit_vertex_arrays && 271 (r300->vertex_arrays_dirty || 272 r300->vertex_arrays_indexed != indexed || 273 r300->vertex_arrays_offset != buffer_offset || 274 r300->vertex_arrays_instance_id != instance_id)) { 275 r300_emit_vertex_arrays(r300, buffer_offset, indexed, instance_id); 276 277 r300->vertex_arrays_dirty = FALSE; 278 r300->vertex_arrays_indexed = indexed; 279 r300->vertex_arrays_offset = buffer_offset; 280 r300->vertex_arrays_instance_id = instance_id; 281 } 282 283 if (emit_vertex_arrays_swtcl) 284 r300_emit_vertex_arrays_swtcl(r300, indexed); 285 286 return TRUE; 287} 288 289/** 290 * Check if the requested number of dwords is available in the CS and 291 * if not, flush. Then validate buffers and emit dirty state. 292 * \param r300 The context. 293 * \param flags See r300_prepare_flags. 294 * \param index_buffer The index buffer to validate. The parameter may be NULL. 295 * \param cs_dwords The number of dwords to reserve in CS. 296 * \param buffer_offset The offset passed to emit_vertex_arrays. 297 * \param index_bias The index bias to emit. 298 * \param instance_id The instance to render. 299 * \return TRUE if rendering should be skipped 300 */ 301static boolean r300_prepare_for_rendering(struct r300_context *r300, 302 enum r300_prepare_flags flags, 303 struct pipe_resource *index_buffer, 304 unsigned cs_dwords, 305 int buffer_offset, 306 int index_bias, 307 int instance_id) 308{ 309 /* Make sure there is enough space in the command stream and emit states. */ 310 if (r300_reserve_cs_dwords(r300, flags, cs_dwords)) 311 flags |= PREP_EMIT_STATES; 312 313 return r300_emit_states(r300, flags, index_buffer, buffer_offset, 314 index_bias, instance_id); 315} 316 317static boolean immd_is_good_idea(struct r300_context *r300, 318 unsigned count) 319{ 320 if (DBG_ON(r300, DBG_NO_IMMD)) { 321 return FALSE; 322 } 323 324 if (count * r300->velems->vertex_size_dwords > IMMD_DWORDS) { 325 return FALSE; 326 } 327 328 /* Buffers can only be used for read by r300 (except query buffers, but 329 * those can't be bound by an gallium frontend as vertex buffers). */ 330 return TRUE; 331} 332 333/***************************************************************************** 334 * The HWTCL draw functions. * 335 ****************************************************************************/ 336 337static void r300_draw_arrays_immediate(struct r300_context *r300, 338 const struct pipe_draw_info *info, 339 const struct pipe_draw_start_count_bias *draw) 340{ 341 struct pipe_vertex_element* velem; 342 struct pipe_vertex_buffer* vbuf; 343 unsigned vertex_element_count = r300->velems->count; 344 unsigned i, v, vbi; 345 346 /* Size of the vertex, in dwords. */ 347 unsigned vertex_size = r300->velems->vertex_size_dwords; 348 349 /* The number of dwords for this draw operation. */ 350 unsigned dwords = 4 + draw->count * vertex_size; 351 352 /* Size of the vertex element, in dwords. */ 353 unsigned size[PIPE_MAX_ATTRIBS]; 354 355 /* Stride to the same attrib in the next vertex in the vertex buffer, 356 * in dwords. */ 357 unsigned stride[PIPE_MAX_ATTRIBS]; 358 359 /* Mapped vertex buffers. */ 360 uint32_t* map[PIPE_MAX_ATTRIBS] = {0}; 361 uint32_t* mapelem[PIPE_MAX_ATTRIBS]; 362 363 CS_LOCALS(r300); 364 365 if (!r300_prepare_for_rendering(r300, PREP_EMIT_STATES, NULL, dwords, 0, 0, -1)) 366 return; 367 368 /* Calculate the vertex size, offsets, strides etc. and map the buffers. */ 369 for (i = 0; i < vertex_element_count; i++) { 370 velem = &r300->velems->velem[i]; 371 size[i] = r300->velems->format_size[i] / 4; 372 vbi = velem->vertex_buffer_index; 373 vbuf = &r300->vertex_buffer[vbi]; 374 stride[i] = vbuf->stride / 4; 375 376 /* Map the buffer. */ 377 if (!map[vbi]) { 378 map[vbi] = (uint32_t*)r300->rws->buffer_map(r300->rws, 379 r300_resource(vbuf->buffer.resource)->buf, 380 &r300->cs, PIPE_MAP_READ | PIPE_MAP_UNSYNCHRONIZED); 381 map[vbi] += (vbuf->buffer_offset / 4) + stride[i] * draw->start; 382 } 383 mapelem[i] = map[vbi] + (velem->src_offset / 4); 384 } 385 386 r300_emit_draw_init(r300, info->mode, draw->count-1); 387 388 BEGIN_CS(dwords); 389 OUT_CS_REG(R300_VAP_VTX_SIZE, vertex_size); 390 OUT_CS_PKT3(R300_PACKET3_3D_DRAW_IMMD_2, draw->count * vertex_size); 391 OUT_CS(R300_VAP_VF_CNTL__PRIM_WALK_VERTEX_EMBEDDED | (draw->count << 16) | 392 r300_translate_primitive(info->mode)); 393 394 /* Emit vertices. */ 395 for (v = 0; v < draw->count; v++) { 396 for (i = 0; i < vertex_element_count; i++) { 397 OUT_CS_TABLE(&mapelem[i][stride[i] * v], size[i]); 398 } 399 } 400 END_CS; 401} 402 403static void r300_emit_draw_arrays(struct r300_context *r300, 404 unsigned mode, 405 unsigned count) 406{ 407 boolean alt_num_verts = count > 65535; 408 CS_LOCALS(r300); 409 410 if (count >= (1 << 24)) { 411 fprintf(stderr, "r300: Got a huge number of vertices: %i, " 412 "refusing to render.\n", count); 413 return; 414 } 415 416 r300_emit_draw_init(r300, mode, count-1); 417 418 BEGIN_CS(2 + (alt_num_verts ? 2 : 0)); 419 if (alt_num_verts) { 420 OUT_CS_REG(R500_VAP_ALT_NUM_VERTICES, count); 421 } 422 OUT_CS_PKT3(R300_PACKET3_3D_DRAW_VBUF_2, 0); 423 OUT_CS(R300_VAP_VF_CNTL__PRIM_WALK_VERTEX_LIST | (count << 16) | 424 r300_translate_primitive(mode) | 425 (alt_num_verts ? R500_VAP_VF_CNTL__USE_ALT_NUM_VERTS : 0)); 426 END_CS; 427} 428 429static void r300_emit_draw_elements(struct r300_context *r300, 430 struct pipe_resource* indexBuffer, 431 unsigned indexSize, 432 unsigned max_index, 433 unsigned mode, 434 unsigned start, 435 unsigned count, 436 uint16_t *imm_indices3) 437{ 438 uint32_t count_dwords, offset_dwords; 439 boolean alt_num_verts = count > 65535; 440 CS_LOCALS(r300); 441 442 if (count >= (1 << 24)) { 443 fprintf(stderr, "r300: Got a huge number of vertices: %i, " 444 "refusing to render (max_index: %i).\n", count, max_index); 445 return; 446 } 447 448 DBG(r300, DBG_DRAW, "r300: Indexbuf of %u indices, max %u\n", 449 count, max_index); 450 451 r300_emit_draw_init(r300, mode, max_index); 452 453 /* If start is odd, render the first triangle with indices embedded 454 * in the command stream. This will increase start by 3 and make it 455 * even. We can then proceed without a fallback. */ 456 if (indexSize == 2 && (start & 1) && 457 mode == PIPE_PRIM_TRIANGLES) { 458 BEGIN_CS(4); 459 OUT_CS_PKT3(R300_PACKET3_3D_DRAW_INDX_2, 2); 460 OUT_CS(R300_VAP_VF_CNTL__PRIM_WALK_INDICES | (3 << 16) | 461 R300_VAP_VF_CNTL__PRIM_TRIANGLES); 462 OUT_CS(imm_indices3[1] << 16 | imm_indices3[0]); 463 OUT_CS(imm_indices3[2]); 464 END_CS; 465 466 start += 3; 467 count -= 3; 468 if (!count) 469 return; 470 } 471 472 offset_dwords = indexSize * start / sizeof(uint32_t); 473 474 BEGIN_CS(8 + (alt_num_verts ? 2 : 0)); 475 if (alt_num_verts) { 476 OUT_CS_REG(R500_VAP_ALT_NUM_VERTICES, count); 477 } 478 OUT_CS_PKT3(R300_PACKET3_3D_DRAW_INDX_2, 0); 479 if (indexSize == 4) { 480 count_dwords = count; 481 OUT_CS(R300_VAP_VF_CNTL__PRIM_WALK_INDICES | (count << 16) | 482 R300_VAP_VF_CNTL__INDEX_SIZE_32bit | 483 r300_translate_primitive(mode) | 484 (alt_num_verts ? R500_VAP_VF_CNTL__USE_ALT_NUM_VERTS : 0)); 485 } else { 486 count_dwords = (count + 1) / 2; 487 OUT_CS(R300_VAP_VF_CNTL__PRIM_WALK_INDICES | (count << 16) | 488 r300_translate_primitive(mode) | 489 (alt_num_verts ? R500_VAP_VF_CNTL__USE_ALT_NUM_VERTS : 0)); 490 } 491 492 OUT_CS_PKT3(R300_PACKET3_INDX_BUFFER, 2); 493 OUT_CS(R300_INDX_BUFFER_ONE_REG_WR | (R300_VAP_PORT_IDX0 >> 2) | 494 (0 << R300_INDX_BUFFER_SKIP_SHIFT)); 495 OUT_CS(offset_dwords << 2); 496 OUT_CS(count_dwords); 497 OUT_CS_RELOC(r300_resource(indexBuffer)); 498 END_CS; 499} 500 501static void r300_draw_elements_immediate(struct r300_context *r300, 502 const struct pipe_draw_info *info, 503 const struct pipe_draw_start_count_bias *draw) 504{ 505 const uint8_t *ptr1; 506 const uint16_t *ptr2; 507 const uint32_t *ptr4; 508 unsigned index_size = info->index_size; 509 unsigned i, count_dwords = index_size == 4 ? draw->count : 510 (draw->count + 1) / 2; 511 CS_LOCALS(r300); 512 513 /* 19 dwords for r300_draw_elements_immediate. Give up if the function fails. */ 514 if (!r300_prepare_for_rendering(r300, 515 PREP_EMIT_STATES | PREP_VALIDATE_VBOS | PREP_EMIT_VARRAYS | 516 PREP_INDEXED, NULL, 2+count_dwords, 0, draw->index_bias, -1)) 517 return; 518 519 r300_emit_draw_init(r300, info->mode, info->max_index); 520 521 BEGIN_CS(2 + count_dwords); 522 OUT_CS_PKT3(R300_PACKET3_3D_DRAW_INDX_2, count_dwords); 523 524 switch (index_size) { 525 case 1: 526 ptr1 = (uint8_t*)info->index.user; 527 ptr1 += draw->start; 528 529 OUT_CS(R300_VAP_VF_CNTL__PRIM_WALK_INDICES | (draw->count << 16) | 530 r300_translate_primitive(info->mode)); 531 532 if (draw->index_bias && !r300->screen->caps.is_r500) { 533 for (i = 0; i < draw->count-1; i += 2) 534 OUT_CS(((ptr1[i+1] + draw->index_bias) << 16) | 535 (ptr1[i] + draw->index_bias)); 536 537 if (draw->count & 1) 538 OUT_CS(ptr1[i] + draw->index_bias); 539 } else { 540 for (i = 0; i < draw->count-1; i += 2) 541 OUT_CS(((ptr1[i+1]) << 16) | 542 (ptr1[i] )); 543 544 if (draw->count & 1) 545 OUT_CS(ptr1[i]); 546 } 547 break; 548 549 case 2: 550 ptr2 = (uint16_t*)info->index.user; 551 ptr2 += draw->start; 552 553 OUT_CS(R300_VAP_VF_CNTL__PRIM_WALK_INDICES | (draw->count << 16) | 554 r300_translate_primitive(info->mode)); 555 556 if (draw->index_bias && !r300->screen->caps.is_r500) { 557 for (i = 0; i < draw->count-1; i += 2) 558 OUT_CS(((ptr2[i+1] + draw->index_bias) << 16) | 559 (ptr2[i] + draw->index_bias)); 560 561 if (draw->count & 1) 562 OUT_CS(ptr2[i] + draw->index_bias); 563 } else { 564 OUT_CS_TABLE(ptr2, count_dwords); 565 } 566 break; 567 568 case 4: 569 ptr4 = (uint32_t*)info->index.user; 570 ptr4 += draw->start; 571 572 OUT_CS(R300_VAP_VF_CNTL__PRIM_WALK_INDICES | (draw->count << 16) | 573 R300_VAP_VF_CNTL__INDEX_SIZE_32bit | 574 r300_translate_primitive(info->mode)); 575 576 if (draw->index_bias && !r300->screen->caps.is_r500) { 577 for (i = 0; i < draw->count; i++) 578 OUT_CS(ptr4[i] + draw->index_bias); 579 } else { 580 OUT_CS_TABLE(ptr4, count_dwords); 581 } 582 break; 583 } 584 END_CS; 585} 586 587static void r300_draw_elements(struct r300_context *r300, 588 const struct pipe_draw_info *info, 589 const struct pipe_draw_start_count_bias *draw, 590 int instance_id) 591{ 592 struct pipe_resource *indexBuffer = 593 info->has_user_indices ? NULL : info->index.resource; 594 unsigned indexSize = info->index_size; 595 struct pipe_resource* orgIndexBuffer = indexBuffer; 596 unsigned start = draw->start; 597 unsigned count = draw->count; 598 boolean alt_num_verts = r300->screen->caps.is_r500 && 599 count > 65536; 600 unsigned short_count; 601 int buffer_offset = 0, index_offset = 0; /* for index bias emulation */ 602 uint16_t indices3[3]; 603 604 if (draw->index_bias && !r300->screen->caps.is_r500) { 605 r300_split_index_bias(r300, draw->index_bias, &buffer_offset, 606 &index_offset); 607 } 608 609 r300_translate_index_buffer(r300, info, &indexBuffer, 610 &indexSize, index_offset, &start, count); 611 612 /* Fallback for misaligned ushort indices. */ 613 if (indexSize == 2 && (start & 1) && indexBuffer) { 614 /* If we got here, then orgIndexBuffer == indexBuffer. */ 615 uint16_t *ptr = r300->rws->buffer_map(r300->rws, r300_resource(orgIndexBuffer)->buf, 616 &r300->cs, 617 PIPE_MAP_READ | 618 PIPE_MAP_UNSYNCHRONIZED); 619 620 if (info->mode == PIPE_PRIM_TRIANGLES) { 621 memcpy(indices3, ptr + start, 6); 622 } else { 623 /* Copy the mapped index buffer directly to the upload buffer. 624 * The start index will be aligned simply from the fact that 625 * every sub-buffer in the upload buffer is aligned. */ 626 r300_upload_index_buffer(r300, &indexBuffer, indexSize, &start, 627 count, (uint8_t*)ptr); 628 } 629 } else { 630 if (info->has_user_indices) 631 r300_upload_index_buffer(r300, &indexBuffer, indexSize, 632 &start, count, 633 info->index.user); 634 } 635 636 /* 19 dwords for emit_draw_elements. Give up if the function fails. */ 637 if (!r300_prepare_for_rendering(r300, 638 PREP_EMIT_STATES | PREP_VALIDATE_VBOS | PREP_EMIT_VARRAYS | 639 PREP_INDEXED, indexBuffer, 19, buffer_offset, draw->index_bias, 640 instance_id)) 641 goto done; 642 643 if (alt_num_verts || count <= 65535) { 644 r300_emit_draw_elements(r300, indexBuffer, indexSize, 645 info->max_index, info->mode, start, count, 646 indices3); 647 } else { 648 do { 649 /* The maximum must be divisible by 4 and 3, 650 * so that quad and triangle lists are split correctly. 651 * 652 * Strips, loops, and fans won't work. */ 653 short_count = MIN2(count, 65532); 654 655 r300_emit_draw_elements(r300, indexBuffer, indexSize, 656 info->max_index, 657 info->mode, start, short_count, indices3); 658 659 start += short_count; 660 count -= short_count; 661 662 /* 15 dwords for emit_draw_elements */ 663 if (count) { 664 if (!r300_prepare_for_rendering(r300, 665 PREP_VALIDATE_VBOS | PREP_EMIT_VARRAYS | PREP_INDEXED, 666 indexBuffer, 19, buffer_offset, draw->index_bias, 667 instance_id)) 668 goto done; 669 } 670 } while (count); 671 } 672 673done: 674 if (indexBuffer != orgIndexBuffer) { 675 pipe_resource_reference( &indexBuffer, NULL ); 676 } 677} 678 679static void r300_draw_arrays(struct r300_context *r300, 680 const struct pipe_draw_info *info, 681 const struct pipe_draw_start_count_bias *draw, 682 int instance_id) 683{ 684 boolean alt_num_verts = r300->screen->caps.is_r500 && 685 draw->count > 65536; 686 unsigned start = draw->start; 687 unsigned count = draw->count; 688 unsigned short_count; 689 690 /* 9 spare dwords for emit_draw_arrays. Give up if the function fails. */ 691 if (!r300_prepare_for_rendering(r300, 692 PREP_EMIT_STATES | PREP_VALIDATE_VBOS | PREP_EMIT_VARRAYS, 693 NULL, 9, start, 0, instance_id)) 694 return; 695 696 if (alt_num_verts || count <= 65535) { 697 r300_emit_draw_arrays(r300, info->mode, count); 698 } else { 699 do { 700 /* The maximum must be divisible by 4 and 3, 701 * so that quad and triangle lists are split correctly. 702 * 703 * Strips, loops, and fans won't work. */ 704 short_count = MIN2(count, 65532); 705 r300_emit_draw_arrays(r300, info->mode, short_count); 706 707 start += short_count; 708 count -= short_count; 709 710 /* 9 spare dwords for emit_draw_arrays. Give up if the function fails. */ 711 if (count) { 712 if (!r300_prepare_for_rendering(r300, 713 PREP_VALIDATE_VBOS | PREP_EMIT_VARRAYS, NULL, 9, 714 start, 0, instance_id)) 715 return; 716 } 717 } while (count); 718 } 719} 720 721static void r300_draw_arrays_instanced(struct r300_context *r300, 722 const struct pipe_draw_info *info, 723 const struct pipe_draw_start_count_bias *draw) 724{ 725 int i; 726 727 for (i = 0; i < info->instance_count; i++) 728 r300_draw_arrays(r300, info, draw, i); 729} 730 731static void r300_draw_elements_instanced(struct r300_context *r300, 732 const struct pipe_draw_info *info, 733 const struct pipe_draw_start_count_bias *draw) 734{ 735 int i; 736 737 for (i = 0; i < info->instance_count; i++) 738 r300_draw_elements(r300, info, draw, i); 739} 740 741static unsigned r300_max_vertex_count(struct r300_context *r300) 742{ 743 unsigned i, nr = r300->velems->count; 744 struct pipe_vertex_element *velems = r300->velems->velem; 745 unsigned result = ~0; 746 747 for (i = 0; i < nr; i++) { 748 struct pipe_vertex_buffer *vb = 749 &r300->vertex_buffer[velems[i].vertex_buffer_index]; 750 unsigned size, max_count, value; 751 752 /* We're not interested in constant and per-instance attribs. */ 753 if (!vb->buffer.resource || 754 !vb->stride || 755 velems[i].instance_divisor) { 756 continue; 757 } 758 759 size = vb->buffer.resource->width0; 760 761 /* Subtract buffer_offset. */ 762 value = vb->buffer_offset; 763 if (value >= size) { 764 return 0; 765 } 766 size -= value; 767 768 /* Subtract src_offset. */ 769 value = velems[i].src_offset; 770 if (value >= size) { 771 return 0; 772 } 773 size -= value; 774 775 /* Subtract format_size. */ 776 value = r300->velems->format_size[i]; 777 if (value >= size) { 778 return 0; 779 } 780 size -= value; 781 782 /* Compute the max count. */ 783 max_count = 1 + size / vb->stride; 784 result = MIN2(result, max_count); 785 } 786 return result; 787} 788 789 790static void r300_draw_vbo(struct pipe_context* pipe, 791 const struct pipe_draw_info *dinfo, 792 unsigned drawid_offset, 793 const struct pipe_draw_indirect_info *indirect, 794 const struct pipe_draw_start_count_bias *draws, 795 unsigned num_draws) 796{ 797 if (num_draws > 1) { 798 util_draw_multi(pipe, dinfo, drawid_offset, indirect, draws, num_draws); 799 return; 800 } 801 802 struct r300_context* r300 = r300_context(pipe); 803 struct pipe_draw_info info = *dinfo; 804 struct pipe_draw_start_count_bias draw = draws[0]; 805 806 if (r300->skip_rendering || 807 !u_trim_pipe_prim(info.mode, &draw.count)) { 808 return; 809 } 810 811 if (r300->sprite_coord_enable != 0) 812 if ((info.mode == PIPE_PRIM_POINTS) != r300->is_point) { 813 r300->is_point = !r300->is_point; 814 r300_mark_atom_dirty(r300, &r300->rs_block_state); 815 } 816 817 r300_update_derived_state(r300); 818 819 /* Skip draw if we failed to compile the vertex shader. */ 820 if (r300_vs(r300)->shader->dummy) 821 return; 822 823 /* Draw. */ 824 if (info.index_size) { 825 unsigned max_count = r300_max_vertex_count(r300); 826 827 if (!max_count) { 828 fprintf(stderr, "r300: Skipping a draw command. There is a buffer " 829 " which is too small to be used for rendering.\n"); 830 return; 831 } 832 833 if (max_count == ~0) { 834 /* There are no per-vertex vertex elements. Use the hardware maximum. */ 835 max_count = 0xffffff; 836 } 837 838 info.max_index = max_count - 1; 839 840 if (info.instance_count <= 1) { 841 if (draw.count <= 8 && info.has_user_indices) { 842 r300_draw_elements_immediate(r300, &info, &draw); 843 } else { 844 r300_draw_elements(r300, &info, &draw, -1); 845 } 846 } else { 847 r300_draw_elements_instanced(r300, &info, &draw); 848 } 849 } else { 850 if (info.instance_count <= 1) { 851 if (immd_is_good_idea(r300, draw.count)) { 852 r300_draw_arrays_immediate(r300, &info, &draw); 853 } else { 854 r300_draw_arrays(r300, &info, &draw, -1); 855 } 856 } else { 857 r300_draw_arrays_instanced(r300, &info, &draw); 858 } 859 } 860} 861 862/**************************************************************************** 863 * The rest of this file is for SW TCL rendering only. Please be polite and * 864 * keep these functions separated so that they are easier to locate. ~C. * 865 ***************************************************************************/ 866 867/* SW TCL elements, using Draw. */ 868static void r300_swtcl_draw_vbo(struct pipe_context* pipe, 869 const struct pipe_draw_info *info, 870 unsigned drawid_offset, 871 const struct pipe_draw_indirect_info *indirect, 872 const struct pipe_draw_start_count_bias *draws, 873 unsigned num_draws) 874{ 875 if (num_draws > 1) { 876 util_draw_multi(pipe, info, drawid_offset, indirect, draws, num_draws); 877 return; 878 } 879 880 struct r300_context* r300 = r300_context(pipe); 881 struct pipe_draw_start_count_bias draw = draws[0]; 882 883 if (r300->skip_rendering) { 884 return; 885 } 886 887 if (!u_trim_pipe_prim(info->mode, &draw.count)) 888 return; 889 890 if (info->index_size) { 891 draw_set_indexes(r300->draw, 892 info->has_user_indices ? 893 info->index.user : 894 r300_resource(info->index.resource)->malloced_buffer, 895 info->index_size, ~0); 896 } 897 898 if (r300->sprite_coord_enable != 0) 899 if ((info->mode == PIPE_PRIM_POINTS) != r300->is_point) { 900 r300->is_point = !r300->is_point; 901 r300_mark_atom_dirty(r300, &r300->rs_block_state); 902 } 903 904 r300_update_derived_state(r300); 905 906 draw_vbo(r300->draw, info, drawid_offset, NULL, &draw, 1, 0); 907 draw_flush(r300->draw); 908} 909 910/* Object for rendering using Draw. */ 911struct r300_render { 912 /* Parent class */ 913 struct vbuf_render base; 914 915 /* Pipe context */ 916 struct r300_context* r300; 917 918 /* Vertex information */ 919 size_t vertex_size; 920 unsigned prim; 921 unsigned hwprim; 922 923 /* VBO */ 924 size_t vbo_max_used; 925 uint8_t *vbo_ptr; 926}; 927 928static inline struct r300_render* 929r300_render(struct vbuf_render* render) 930{ 931 return (struct r300_render*)render; 932} 933 934static const struct vertex_info* 935r300_render_get_vertex_info(struct vbuf_render* render) 936{ 937 struct r300_render* r300render = r300_render(render); 938 struct r300_context* r300 = r300render->r300; 939 940 return &r300->vertex_info; 941} 942 943static boolean r300_render_allocate_vertices(struct vbuf_render* render, 944 ushort vertex_size, 945 ushort count) 946{ 947 struct r300_render* r300render = r300_render(render); 948 struct r300_context* r300 = r300render->r300; 949 struct radeon_winsys *rws = r300->rws; 950 size_t size = (size_t)vertex_size * (size_t)count; 951 952 DBG(r300, DBG_DRAW, "r300: render_allocate_vertices (size: %d)\n", size); 953 954 if (!r300->vbo || size + r300->draw_vbo_offset > r300->vbo->size) { 955 pb_reference(&r300->vbo, NULL); 956 r300->vbo = NULL; 957 r300render->vbo_ptr = NULL; 958 959 r300->vbo = rws->buffer_create(rws, 960 MAX2(R300_MAX_DRAW_VBO_SIZE, size), 961 R300_BUFFER_ALIGNMENT, 962 RADEON_DOMAIN_GTT, 963 RADEON_FLAG_NO_INTERPROCESS_SHARING); 964 if (!r300->vbo) { 965 return FALSE; 966 } 967 r300->draw_vbo_offset = 0; 968 r300render->vbo_ptr = rws->buffer_map(rws, r300->vbo, &r300->cs, 969 PIPE_MAP_WRITE); 970 } 971 972 r300render->vertex_size = vertex_size; 973 return TRUE; 974} 975 976static void* r300_render_map_vertices(struct vbuf_render* render) 977{ 978 struct r300_render* r300render = r300_render(render); 979 struct r300_context* r300 = r300render->r300; 980 981 DBG(r300, DBG_DRAW, "r300: render_map_vertices\n"); 982 983 assert(r300render->vbo_ptr); 984 return r300render->vbo_ptr + r300->draw_vbo_offset; 985} 986 987static void r300_render_unmap_vertices(struct vbuf_render* render, 988 ushort min, 989 ushort max) 990{ 991 struct r300_render* r300render = r300_render(render); 992 struct r300_context* r300 = r300render->r300; 993 994 DBG(r300, DBG_DRAW, "r300: render_unmap_vertices\n"); 995 996 r300render->vbo_max_used = MAX2(r300render->vbo_max_used, 997 r300render->vertex_size * (max + 1)); 998} 999 1000static void r300_render_release_vertices(struct vbuf_render* render) 1001{ 1002 struct r300_render* r300render = r300_render(render); 1003 struct r300_context* r300 = r300render->r300; 1004 1005 DBG(r300, DBG_DRAW, "r300: render_release_vertices\n"); 1006 1007 r300->draw_vbo_offset += r300render->vbo_max_used; 1008 r300render->vbo_max_used = 0; 1009} 1010 1011static void r300_render_set_primitive(struct vbuf_render* render, 1012 enum pipe_prim_type prim) 1013{ 1014 struct r300_render* r300render = r300_render(render); 1015 1016 r300render->prim = prim; 1017 r300render->hwprim = r300_translate_primitive(prim); 1018} 1019 1020static void r300_render_draw_arrays(struct vbuf_render* render, 1021 unsigned start, 1022 unsigned count) 1023{ 1024 struct r300_render* r300render = r300_render(render); 1025 struct r300_context* r300 = r300render->r300; 1026 uint8_t* ptr; 1027 unsigned i; 1028 unsigned dwords = 6; 1029 1030 CS_LOCALS(r300); 1031 (void) i; (void) ptr; 1032 1033 assert(start == 0); 1034 assert(count < (1 << 16)); 1035 1036 DBG(r300, DBG_DRAW, "r300: render_draw_arrays (count: %d)\n", count); 1037 1038 if (!r300_prepare_for_rendering(r300, 1039 PREP_EMIT_STATES | PREP_EMIT_VARRAYS_SWTCL, 1040 NULL, dwords, 0, 0, -1)) { 1041 return; 1042 } 1043 1044 BEGIN_CS(dwords); 1045 OUT_CS_REG(R300_GA_COLOR_CONTROL, 1046 r300_provoking_vertex_fixes(r300, r300render->prim)); 1047 OUT_CS_REG(R300_VAP_VF_MAX_VTX_INDX, count - 1); 1048 OUT_CS_PKT3(R300_PACKET3_3D_DRAW_VBUF_2, 0); 1049 OUT_CS(R300_VAP_VF_CNTL__PRIM_WALK_VERTEX_LIST | (count << 16) | 1050 r300render->hwprim); 1051 END_CS; 1052} 1053 1054static void r300_render_draw_elements(struct vbuf_render* render, 1055 const ushort* indices, 1056 uint count) 1057{ 1058 struct r300_render* r300render = r300_render(render); 1059 struct r300_context* r300 = r300render->r300; 1060 unsigned max_index = (r300->vbo->size - r300->draw_vbo_offset) / 1061 (r300render->r300->vertex_info.size * 4) - 1; 1062 struct pipe_resource *index_buffer = NULL; 1063 unsigned index_buffer_offset; 1064 1065 CS_LOCALS(r300); 1066 DBG(r300, DBG_DRAW, "r300: render_draw_elements (count: %d)\n", count); 1067 1068 u_upload_data(r300->uploader, 0, count * 2, 4, indices, 1069 &index_buffer_offset, &index_buffer); 1070 if (!index_buffer) { 1071 return; 1072 } 1073 1074 if (!r300_prepare_for_rendering(r300, 1075 PREP_EMIT_STATES | 1076 PREP_EMIT_VARRAYS_SWTCL | PREP_INDEXED, 1077 index_buffer, 12, 0, 0, -1)) { 1078 pipe_resource_reference(&index_buffer, NULL); 1079 return; 1080 } 1081 1082 BEGIN_CS(12); 1083 OUT_CS_REG(R300_GA_COLOR_CONTROL, 1084 r300_provoking_vertex_fixes(r300, r300render->prim)); 1085 OUT_CS_REG(R300_VAP_VF_MAX_VTX_INDX, max_index); 1086 1087 OUT_CS_PKT3(R300_PACKET3_3D_DRAW_INDX_2, 0); 1088 OUT_CS(R300_VAP_VF_CNTL__PRIM_WALK_INDICES | (count << 16) | 1089 r300render->hwprim); 1090 1091 OUT_CS_PKT3(R300_PACKET3_INDX_BUFFER, 2); 1092 OUT_CS(R300_INDX_BUFFER_ONE_REG_WR | (R300_VAP_PORT_IDX0 >> 2)); 1093 OUT_CS(index_buffer_offset); 1094 OUT_CS((count + 1) / 2); 1095 OUT_CS_RELOC(r300_resource(index_buffer)); 1096 END_CS; 1097 1098 pipe_resource_reference(&index_buffer, NULL); 1099} 1100 1101static void r300_render_destroy(struct vbuf_render* render) 1102{ 1103 FREE(render); 1104} 1105 1106static struct vbuf_render* r300_render_create(struct r300_context* r300) 1107{ 1108 struct r300_render* r300render = CALLOC_STRUCT(r300_render); 1109 1110 r300render->r300 = r300; 1111 1112 r300render->base.max_vertex_buffer_bytes = R300_MAX_DRAW_VBO_SIZE; 1113 r300render->base.max_indices = 16 * 1024; 1114 1115 r300render->base.get_vertex_info = r300_render_get_vertex_info; 1116 r300render->base.allocate_vertices = r300_render_allocate_vertices; 1117 r300render->base.map_vertices = r300_render_map_vertices; 1118 r300render->base.unmap_vertices = r300_render_unmap_vertices; 1119 r300render->base.set_primitive = r300_render_set_primitive; 1120 r300render->base.draw_elements = r300_render_draw_elements; 1121 r300render->base.draw_arrays = r300_render_draw_arrays; 1122 r300render->base.release_vertices = r300_render_release_vertices; 1123 r300render->base.destroy = r300_render_destroy; 1124 1125 return &r300render->base; 1126} 1127 1128struct draw_stage* r300_draw_stage(struct r300_context* r300) 1129{ 1130 struct vbuf_render* render; 1131 struct draw_stage* stage; 1132 1133 render = r300_render_create(r300); 1134 1135 if (!render) { 1136 return NULL; 1137 } 1138 1139 stage = draw_vbuf_stage(r300->draw, render); 1140 1141 if (!stage) { 1142 render->destroy(render); 1143 return NULL; 1144 } 1145 1146 draw_set_render(r300->draw, render); 1147 1148 return stage; 1149} 1150 1151/**************************************************************************** 1152 * End of SW TCL functions * 1153 ***************************************************************************/ 1154 1155/* This functions is used to draw a rectangle for the blitter module. 1156 * 1157 * If we rendered a quad, the pixels on the main diagonal 1158 * would be computed and stored twice, which makes the clear/copy codepaths 1159 * somewhat inefficient. Instead we use a rectangular point sprite. */ 1160void r300_blitter_draw_rectangle(struct blitter_context *blitter, 1161 void *vertex_elements_cso, 1162 blitter_get_vs_func get_vs, 1163 int x1, int y1, int x2, int y2, 1164 float depth, unsigned num_instances, 1165 enum blitter_attrib_type type, 1166 const union blitter_attrib *attrib) 1167{ 1168 struct r300_context *r300 = r300_context(util_blitter_get_pipe(blitter)); 1169 unsigned last_sprite_coord_enable = r300->sprite_coord_enable; 1170 unsigned last_is_point = r300->is_point; 1171 unsigned width = x2 - x1; 1172 unsigned height = y2 - y1; 1173 unsigned vertex_size = 1174 type == UTIL_BLITTER_ATTRIB_COLOR || !r300->draw ? 8 : 4; 1175 unsigned dwords = 13 + vertex_size + 1176 (type == UTIL_BLITTER_ATTRIB_TEXCOORD_XY ? 7 : 0); 1177 static const union blitter_attrib zeros; 1178 CS_LOCALS(r300); 1179 1180 /* XXX workaround for a lockup in MSAA resolve on SWTCL chipsets, this 1181 * function most probably doesn't handle type=NONE correctly */ 1182 if ((!r300->screen->caps.has_tcl && type == UTIL_BLITTER_ATTRIB_NONE) || 1183 type == UTIL_BLITTER_ATTRIB_TEXCOORD_XYZW || 1184 num_instances > 1) { 1185 util_blitter_draw_rectangle(blitter, vertex_elements_cso, get_vs, 1186 x1, y1, x2, y2, 1187 depth, num_instances, type, attrib); 1188 return; 1189 } 1190 1191 if (r300->skip_rendering) 1192 return; 1193 1194 r300->context.bind_vertex_elements_state(&r300->context, vertex_elements_cso); 1195 r300->context.bind_vs_state(&r300->context, get_vs(blitter)); 1196 1197 if (type == UTIL_BLITTER_ATTRIB_TEXCOORD_XY) { 1198 r300->sprite_coord_enable = 1; 1199 r300->is_point = true; 1200 } 1201 1202 r300_update_derived_state(r300); 1203 1204 /* Mark some states we don't care about as non-dirty. */ 1205 r300->viewport_state.dirty = FALSE; 1206 1207 if (!r300_prepare_for_rendering(r300, PREP_EMIT_STATES, NULL, dwords, 0, 0, -1)) 1208 goto done; 1209 1210 DBG(r300, DBG_DRAW, "r300: draw_rectangle\n"); 1211 1212 BEGIN_CS(dwords); 1213 /* Set up GA. */ 1214 OUT_CS_REG(R300_GA_POINT_SIZE, (height * 6) | ((width * 6) << 16)); 1215 1216 if (type == UTIL_BLITTER_ATTRIB_TEXCOORD_XY) { 1217 /* Set up the GA to generate texcoords. */ 1218 OUT_CS_REG(R300_GB_ENABLE, R300_GB_POINT_STUFF_ENABLE | 1219 (R300_GB_TEX_STR << R300_GB_TEX0_SOURCE_SHIFT)); 1220 OUT_CS_REG_SEQ(R300_GA_POINT_S0, 4); 1221 OUT_CS_32F(attrib->texcoord.x1); 1222 OUT_CS_32F(attrib->texcoord.y2); 1223 OUT_CS_32F(attrib->texcoord.x2); 1224 OUT_CS_32F(attrib->texcoord.y1); 1225 } 1226 1227 /* Set up VAP controls. */ 1228 OUT_CS_REG(R300_VAP_CLIP_CNTL, R300_CLIP_DISABLE); 1229 OUT_CS_REG(R300_VAP_VTE_CNTL, R300_VTX_XY_FMT | R300_VTX_Z_FMT); 1230 OUT_CS_REG(R300_VAP_VTX_SIZE, vertex_size); 1231 OUT_CS_REG_SEQ(R300_VAP_VF_MAX_VTX_INDX, 2); 1232 OUT_CS(1); 1233 OUT_CS(0); 1234 1235 /* Draw. */ 1236 OUT_CS_PKT3(R300_PACKET3_3D_DRAW_IMMD_2, vertex_size); 1237 OUT_CS(R300_VAP_VF_CNTL__PRIM_WALK_VERTEX_EMBEDDED | (1 << 16) | 1238 R300_VAP_VF_CNTL__PRIM_POINTS); 1239 1240 OUT_CS_32F(x1 + width * 0.5f); 1241 OUT_CS_32F(y1 + height * 0.5f); 1242 OUT_CS_32F(depth); 1243 OUT_CS_32F(1); 1244 1245 if (vertex_size == 8) { 1246 if (!attrib) 1247 attrib = &zeros; 1248 OUT_CS_TABLE(attrib->color, 4); 1249 } 1250 END_CS; 1251 1252done: 1253 /* Restore the state. */ 1254 r300_mark_atom_dirty(r300, &r300->rs_state); 1255 r300_mark_atom_dirty(r300, &r300->viewport_state); 1256 1257 r300->sprite_coord_enable = last_sprite_coord_enable; 1258 r300->is_point = last_is_point; 1259} 1260 1261void r300_init_render_functions(struct r300_context *r300) 1262{ 1263 /* Set draw functions based on presence of HW TCL. */ 1264 if (r300->screen->caps.has_tcl) { 1265 r300->context.draw_vbo = r300_draw_vbo; 1266 } else { 1267 r300->context.draw_vbo = r300_swtcl_draw_vbo; 1268 } 1269 1270 /* Plug in the two-sided stencil reference value fallback if needed. */ 1271 if (!r300->screen->caps.is_r500) 1272 r300_plug_in_stencil_ref_fallback(r300); 1273} 1274