r300_render.c revision c69bd0ead755b695ee5c64dc9efd45c53b299f21
1/* 2 * Copyright 2009 Corbin Simpson <MostAwesomeDude@gmail.com> 3 * 4 * Permission is hereby granted, free of charge, to any person obtaining a 5 * copy of this software and associated documentation files (the "Software"), 6 * to deal in the Software without restriction, including without limitation 7 * on the rights to use, copy, modify, merge, publish, distribute, sub 8 * license, and/or sell copies of the Software, and to permit persons to whom 9 * the Software is furnished to do so, subject to the following conditions: 10 * 11 * The above copyright notice and this permission notice (including the next 12 * paragraph) shall be included in all copies or substantial portions of the 13 * Software. 14 * 15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 16 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 17 * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL 18 * THE AUTHOR(S) AND/OR THEIR SUPPLIERS BE LIABLE FOR ANY CLAIM, 19 * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR 20 * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE 21 * USE OR OTHER DEALINGS IN THE SOFTWARE. */ 22 23/* r300_render: Vertex and index buffer primitive emission. Contains both 24 * HW TCL fastpath rendering, and SW TCL Draw-assisted rendering. */ 25 26#include "draw/draw_context.h" 27#include "draw/draw_vbuf.h" 28 29#include "pipe/p_inlines.h" 30 31#include "util/u_memory.h" 32#include "util/u_prim.h" 33 34#include "r300_cs.h" 35#include "r300_context.h" 36#include "r300_emit.h" 37#include "r300_reg.h" 38#include "r300_render.h" 39#include "r300_state_derived.h" 40 41/* r300_render: Vertex and index buffer primitive emission. */ 42#define R300_MAX_VBO_SIZE (1024 * 1024) 43 44uint32_t r300_translate_primitive(unsigned prim) 45{ 46 switch (prim) { 47 case PIPE_PRIM_POINTS: 48 return R300_VAP_VF_CNTL__PRIM_POINTS; 49 case PIPE_PRIM_LINES: 50 return R300_VAP_VF_CNTL__PRIM_LINES; 51 case PIPE_PRIM_LINE_LOOP: 52 return R300_VAP_VF_CNTL__PRIM_LINE_LOOP; 53 case PIPE_PRIM_LINE_STRIP: 54 return R300_VAP_VF_CNTL__PRIM_LINE_STRIP; 55 case PIPE_PRIM_TRIANGLES: 56 return R300_VAP_VF_CNTL__PRIM_TRIANGLES; 57 case PIPE_PRIM_TRIANGLE_STRIP: 58 return R300_VAP_VF_CNTL__PRIM_TRIANGLE_STRIP; 59 case PIPE_PRIM_TRIANGLE_FAN: 60 return R300_VAP_VF_CNTL__PRIM_TRIANGLE_FAN; 61 case PIPE_PRIM_QUADS: 62 return R300_VAP_VF_CNTL__PRIM_QUADS; 63 case PIPE_PRIM_QUAD_STRIP: 64 return R300_VAP_VF_CNTL__PRIM_QUAD_STRIP; 65 case PIPE_PRIM_POLYGON: 66 return R300_VAP_VF_CNTL__PRIM_POLYGON; 67 default: 68 return 0; 69 } 70} 71 72static uint32_t r300_provoking_vertex_fixes(struct r300_context *r300, 73 unsigned mode) 74{ 75 struct r300_rs_state* rs = (struct r300_rs_state*)r300->rs_state.state; 76 uint32_t color_control = rs->color_control; 77 78 /* By default (see r300_state.c:r300_create_rs_state) color_control is 79 * initialized to provoking the first vertex. 80 * 81 * Triangle fans must be reduced to the second vertex, not the first, in 82 * Gallium flatshade-first mode, as per the GL spec. 83 * (http://www.opengl.org/registry/specs/ARB/provoking_vertex.txt) 84 * 85 * Quads never provoke correctly in flatshade-first mode. The first 86 * vertex is never considered as provoking, so only the second, third, 87 * and fourth vertices can be selected, and both "third" and "last" modes 88 * select the fourth vertex. This is probably due to D3D lacking quads. 89 * 90 * Similarly, polygons reduce to the first, not the last, vertex, when in 91 * "last" mode, and all other modes start from the second vertex. 92 * 93 * ~ C. 94 */ 95 96 if (rs->rs.flatshade_first) { 97 switch (mode) { 98 case PIPE_PRIM_TRIANGLE_FAN: 99 color_control |= R300_GA_COLOR_CONTROL_PROVOKING_VERTEX_SECOND; 100 break; 101 case PIPE_PRIM_QUADS: 102 case PIPE_PRIM_QUAD_STRIP: 103 case PIPE_PRIM_POLYGON: 104 color_control |= R300_GA_COLOR_CONTROL_PROVOKING_VERTEX_LAST; 105 break; 106 default: 107 color_control |= R300_GA_COLOR_CONTROL_PROVOKING_VERTEX_FIRST; 108 break; 109 } 110 } else { 111 color_control |= R300_GA_COLOR_CONTROL_PROVOKING_VERTEX_LAST; 112 } 113 114 return color_control; 115} 116 117static void r300_emit_draw_immediate(struct r300_context *r300, 118 unsigned mode, 119 unsigned start, 120 unsigned count) 121{ 122 struct pipe_buffer* vbo = r300->vertex_buffer[0].buffer; 123 unsigned vertex_size = r300->vertex_buffer[0].stride / sizeof(float); 124 unsigned i; 125 uint32_t* map; 126 CS_LOCALS(r300); 127 128 map = (uint32_t*)pipe_buffer_map_range(r300->context.screen, vbo, 129 start * vertex_size, count * vertex_size, 130 PIPE_BUFFER_USAGE_CPU_READ); 131 132 BEGIN_CS(10 + count * vertex_size); 133 OUT_CS_REG(R300_GA_COLOR_CONTROL, 134 r300_provoking_vertex_fixes(r300, mode)); 135 OUT_CS_REG(R300_VAP_VTX_SIZE, vertex_size); 136 OUT_CS_REG(R300_VAP_VF_MIN_VTX_INDX, 0); 137 OUT_CS_REG(R300_VAP_VF_MAX_VTX_INDX, count - 1); 138 OUT_CS_PKT3(R300_PACKET3_3D_DRAW_IMMD_2, count * vertex_size); 139 OUT_CS(R300_VAP_VF_CNTL__PRIM_WALK_VERTEX_EMBEDDED | (count << 16) | 140 r300_translate_primitive(mode)); 141 //debug_printf("r300: Immd %d verts, %d attrs\n", count, vertex_size); 142 for (i = 0; i < count * vertex_size; i++) { 143 if (i % vertex_size == 0) { 144 //debug_printf("r300: -- vert --\n"); 145 } 146 //debug_printf("r300: 0x%08x\n", *map); 147 OUT_CS(*map); 148 map++; 149 } 150 END_CS; 151 152 pipe_buffer_unmap(r300->context.screen, vbo); 153} 154 155static void r300_emit_draw_arrays(struct r300_context *r300, 156 unsigned mode, 157 unsigned count) 158{ 159 CS_LOCALS(r300); 160 161 BEGIN_CS(8); 162 OUT_CS_REG(R300_GA_COLOR_CONTROL, 163 r300_provoking_vertex_fixes(r300, mode)); 164 OUT_CS_REG(R300_VAP_VF_MIN_VTX_INDX, 0); 165 OUT_CS_REG(R300_VAP_VF_MAX_VTX_INDX, count - 1); 166 OUT_CS_PKT3(R300_PACKET3_3D_DRAW_VBUF_2, 0); 167 OUT_CS(R300_VAP_VF_CNTL__PRIM_WALK_VERTEX_LIST | (count << 16) | 168 r300_translate_primitive(mode)); 169 END_CS; 170} 171 172static void r300_emit_draw_elements(struct r300_context *r300, 173 struct pipe_buffer* indexBuffer, 174 unsigned indexSize, 175 unsigned minIndex, 176 unsigned maxIndex, 177 unsigned mode, 178 unsigned start, 179 unsigned count) 180{ 181 uint32_t count_dwords; 182 uint32_t offset_dwords = indexSize * start / sizeof(uint32_t); 183 CS_LOCALS(r300); 184 185 /* XXX most of these are stupid */ 186 assert(indexSize == 4 || indexSize == 2); 187 assert((start * indexSize) % 4 == 0); 188 assert(offset_dwords == 0); 189 190 BEGIN_CS(14); 191 OUT_CS_REG(R300_GA_COLOR_CONTROL, 192 r300_provoking_vertex_fixes(r300, mode)); 193 OUT_CS_REG(R300_VAP_VF_MIN_VTX_INDX, minIndex); 194 OUT_CS_REG(R300_VAP_VF_MAX_VTX_INDX, maxIndex); 195 OUT_CS_PKT3(R300_PACKET3_3D_DRAW_INDX_2, 0); 196 if (indexSize == 4) { 197 count_dwords = count + start; 198 OUT_CS(R300_VAP_VF_CNTL__PRIM_WALK_INDICES | (count << 16) | 199 R300_VAP_VF_CNTL__INDEX_SIZE_32bit | 200 r300_translate_primitive(mode)); 201 } else { 202 count_dwords = (count + start + 1) / 2; 203 OUT_CS(R300_VAP_VF_CNTL__PRIM_WALK_INDICES | (count << 16) | 204 r300_translate_primitive(mode)); 205 } 206 207 /* INDX_BUFFER is a truly special packet3. 208 * Unlike most other packet3, where the offset is after the count, 209 * the order is reversed, so the relocation ends up carrying the 210 * size of the indexbuf instead of the offset. 211 * 212 * XXX Fix offset 213 */ 214 OUT_CS_PKT3(R300_PACKET3_INDX_BUFFER, 2); 215 OUT_CS(R300_INDX_BUFFER_ONE_REG_WR | (R300_VAP_PORT_IDX0 >> 2) | 216 (0 << R300_INDX_BUFFER_SKIP_SHIFT)); 217 OUT_CS(offset_dwords); 218 OUT_CS_RELOC(indexBuffer, count_dwords, 219 RADEON_GEM_DOMAIN_GTT, 0, 0); 220 221 END_CS; 222} 223 224 225static boolean r300_setup_vertex_buffers(struct r300_context *r300) 226{ 227 struct pipe_vertex_buffer *vbuf = r300->vertex_buffer; 228 struct pipe_vertex_element *velem = r300->vertex_element; 229 230validate: 231 for (int i = 0; i < r300->vertex_element_count; i++) { 232 if (!r300->winsys->add_buffer(r300->winsys, 233 vbuf[velem[i].vertex_buffer_index].buffer, 234 RADEON_GEM_DOMAIN_GTT, 0)) { 235 r300->context.flush(&r300->context, 0, NULL); 236 goto validate; 237 } 238 } 239 240 if (!r300->winsys->validate(r300->winsys)) { 241 r300->context.flush(&r300->context, 0, NULL); 242 return r300->winsys->validate(r300->winsys); 243 } 244 245 return TRUE; 246} 247 248static void r300_shorten_ubyte_elts(struct r300_context* r300, 249 struct pipe_buffer** elts, 250 unsigned count) 251{ 252 struct pipe_screen* screen = r300->context.screen; 253 struct pipe_buffer* new_elts; 254 unsigned char *in_map; 255 unsigned short *out_map; 256 unsigned i; 257 258 new_elts = screen->buffer_create(screen, 32, 259 PIPE_BUFFER_USAGE_INDEX | 260 PIPE_BUFFER_USAGE_CPU_WRITE | 261 PIPE_BUFFER_USAGE_GPU_READ, 262 2 * count); 263 264 in_map = pipe_buffer_map(screen, *elts, PIPE_BUFFER_USAGE_CPU_READ); 265 out_map = pipe_buffer_map(screen, new_elts, PIPE_BUFFER_USAGE_CPU_WRITE); 266 267 for (i = 0; i < count; i++) { 268 *out_map = (unsigned short)*in_map; 269 in_map++; 270 out_map++; 271 } 272 273 pipe_buffer_unmap(screen, *elts); 274 pipe_buffer_unmap(screen, new_elts); 275 276 *elts = new_elts; 277} 278 279/* This is the fast-path drawing & emission for HW TCL. */ 280void r300_draw_range_elements(struct pipe_context* pipe, 281 struct pipe_buffer* indexBuffer, 282 unsigned indexSize, 283 unsigned minIndex, 284 unsigned maxIndex, 285 unsigned mode, 286 unsigned start, 287 unsigned count) 288{ 289 struct r300_context* r300 = r300_context(pipe); 290 struct pipe_buffer* orgIndexBuffer = indexBuffer; 291 292 if (!u_trim_pipe_prim(mode, &count)) { 293 return; 294 } 295 296 if (count > 65535) { 297 /* XXX: use aux/indices functions to split this into smaller 298 * primitives. 299 */ 300 return; 301 } 302 303 r300_update_derived_state(r300); 304 305 if (!r300_setup_vertex_buffers(r300)) { 306 return; 307 } 308 309 if (indexSize == 1) { 310 r300_shorten_ubyte_elts(r300, &indexBuffer, count); 311 indexSize = 2; 312 } 313 314 if (!r300->winsys->add_buffer(r300->winsys, indexBuffer, 315 RADEON_GEM_DOMAIN_GTT, 0)) { 316 goto cleanup; 317 } 318 319 if (!r300->winsys->validate(r300->winsys)) { 320 goto cleanup; 321 } 322 323 r300_emit_dirty_state(r300); 324 325 r300_emit_aos(r300, 0); 326 327 r300_emit_draw_elements(r300, indexBuffer, indexSize, minIndex, maxIndex, 328 mode, start, count); 329 330cleanup: 331 if (indexBuffer != orgIndexBuffer) { 332 pipe->screen->buffer_destroy(indexBuffer); 333 } 334} 335 336/* Simple helpers for context setup. Should probably be moved to util. */ 337void r300_draw_elements(struct pipe_context* pipe, 338 struct pipe_buffer* indexBuffer, 339 unsigned indexSize, unsigned mode, 340 unsigned start, unsigned count) 341{ 342 pipe->draw_range_elements(pipe, indexBuffer, indexSize, 0, ~0, 343 mode, start, count); 344} 345 346void r300_draw_arrays(struct pipe_context* pipe, unsigned mode, 347 unsigned start, unsigned count) 348{ 349 struct r300_context* r300 = r300_context(pipe); 350 351 if (!u_trim_pipe_prim(mode, &count)) { 352 return; 353 } 354 355 if (count > 65535) { 356 /* XXX: driver needs to handle this -- use the functions in 357 * aux/indices to split this into several smaller primitives. 358 */ 359 return; 360 } 361 362 r300_update_derived_state(r300); 363 364 if (!r300_setup_vertex_buffers(r300)) { 365 return; 366 } 367 368 r300_emit_dirty_state(r300); 369 370 if (FALSE && count <= 4 && r300->vertex_buffer_count == 1) { 371 r300_emit_draw_immediate(r300, mode, start, count); 372 } else { 373 r300_emit_aos(r300, start); 374 r300_emit_draw_arrays(r300, mode, count); 375 } 376} 377 378/**************************************************************************** 379 * The rest of this file is for SW TCL rendering only. Please be polite and * 380 * keep these functions separated so that they are easier to locate. ~C. * 381 ***************************************************************************/ 382 383/* SW TCL arrays, using Draw. */ 384void r300_swtcl_draw_arrays(struct pipe_context* pipe, 385 unsigned mode, 386 unsigned start, 387 unsigned count) 388{ 389 struct r300_context* r300 = r300_context(pipe); 390 int i; 391 392 if (!u_trim_pipe_prim(mode, &count)) { 393 return; 394 } 395 396 for (i = 0; i < r300->vertex_buffer_count; i++) { 397 void* buf = pipe_buffer_map(pipe->screen, 398 r300->vertex_buffer[i].buffer, 399 PIPE_BUFFER_USAGE_CPU_READ); 400 draw_set_mapped_vertex_buffer(r300->draw, i, buf); 401 } 402 403 draw_set_mapped_element_buffer(r300->draw, 0, NULL); 404 405 draw_set_mapped_constant_buffer(r300->draw, 406 PIPE_SHADER_VERTEX, 407 r300->shader_constants[PIPE_SHADER_VERTEX].constants, 408 r300->shader_constants[PIPE_SHADER_VERTEX].count * 409 (sizeof(float) * 4)); 410 411 draw_arrays(r300->draw, mode, start, count); 412 413 for (i = 0; i < r300->vertex_buffer_count; i++) { 414 pipe_buffer_unmap(pipe->screen, r300->vertex_buffer[i].buffer); 415 draw_set_mapped_vertex_buffer(r300->draw, i, NULL); 416 } 417} 418 419/* SW TCL elements, using Draw. */ 420void r300_swtcl_draw_range_elements(struct pipe_context* pipe, 421 struct pipe_buffer* indexBuffer, 422 unsigned indexSize, 423 unsigned minIndex, 424 unsigned maxIndex, 425 unsigned mode, 426 unsigned start, 427 unsigned count) 428{ 429 struct r300_context* r300 = r300_context(pipe); 430 int i; 431 void* indices; 432 433 if (!u_trim_pipe_prim(mode, &count)) { 434 return; 435 } 436 437 for (i = 0; i < r300->vertex_buffer_count; i++) { 438 void* buf = pipe_buffer_map(pipe->screen, 439 r300->vertex_buffer[i].buffer, 440 PIPE_BUFFER_USAGE_CPU_READ); 441 draw_set_mapped_vertex_buffer(r300->draw, i, buf); 442 } 443 444 indices = pipe_buffer_map(pipe->screen, indexBuffer, 445 PIPE_BUFFER_USAGE_CPU_READ); 446 draw_set_mapped_element_buffer_range(r300->draw, indexSize, 447 minIndex, maxIndex, indices); 448 449 draw_set_mapped_constant_buffer(r300->draw, 450 PIPE_SHADER_VERTEX, 451 r300->shader_constants[PIPE_SHADER_VERTEX].constants, 452 r300->shader_constants[PIPE_SHADER_VERTEX].count * 453 (sizeof(float) * 4)); 454 455 draw_arrays(r300->draw, mode, start, count); 456 457 for (i = 0; i < r300->vertex_buffer_count; i++) { 458 pipe_buffer_unmap(pipe->screen, r300->vertex_buffer[i].buffer); 459 draw_set_mapped_vertex_buffer(r300->draw, i, NULL); 460 } 461 462 pipe_buffer_unmap(pipe->screen, indexBuffer); 463 draw_set_mapped_element_buffer_range(r300->draw, 0, start, 464 start + count - 1, NULL); 465} 466 467/* Object for rendering using Draw. */ 468struct r300_render { 469 /* Parent class */ 470 struct vbuf_render base; 471 472 /* Pipe context */ 473 struct r300_context* r300; 474 475 /* Vertex information */ 476 size_t vertex_size; 477 unsigned prim; 478 unsigned hwprim; 479 480 /* VBO */ 481 struct pipe_buffer* vbo; 482 size_t vbo_size; 483 size_t vbo_offset; 484 size_t vbo_max_used; 485 void * vbo_ptr; 486}; 487 488static INLINE struct r300_render* 489r300_render(struct vbuf_render* render) 490{ 491 return (struct r300_render*)render; 492} 493 494static const struct vertex_info* 495r300_render_get_vertex_info(struct vbuf_render* render) 496{ 497 struct r300_render* r300render = r300_render(render); 498 struct r300_context* r300 = r300render->r300; 499 500 r300_update_derived_state(r300); 501 502 return &r300->vertex_info->vinfo; 503} 504 505static boolean r300_render_allocate_vertices(struct vbuf_render* render, 506 ushort vertex_size, 507 ushort count) 508{ 509 struct r300_render* r300render = r300_render(render); 510 struct r300_context* r300 = r300render->r300; 511 struct pipe_screen* screen = r300->context.screen; 512 size_t size = (size_t)vertex_size * (size_t)count; 513 514 if (size + r300render->vbo_offset > r300render->vbo_size) 515 { 516 pipe_buffer_reference(&r300->vbo, NULL); 517 r300render->vbo = pipe_buffer_create(screen, 518 64, 519 PIPE_BUFFER_USAGE_VERTEX, 520 R300_MAX_VBO_SIZE); 521 r300render->vbo_offset = 0; 522 r300render->vbo_size = R300_MAX_VBO_SIZE; 523 } 524 525 r300render->vertex_size = vertex_size; 526 r300->vbo = r300render->vbo; 527 r300->vbo_offset = r300render->vbo_offset; 528 529 return (r300render->vbo) ? TRUE : FALSE; 530} 531 532static void* r300_render_map_vertices(struct vbuf_render* render) 533{ 534 struct r300_render* r300render = r300_render(render); 535 struct pipe_screen* screen = r300render->r300->context.screen; 536 537 r300render->vbo_ptr = pipe_buffer_map(screen, r300render->vbo, 538 PIPE_BUFFER_USAGE_CPU_WRITE); 539 540 return ((uint8_t*)r300render->vbo_ptr + r300render->vbo_offset); 541} 542 543static void r300_render_unmap_vertices(struct vbuf_render* render, 544 ushort min, 545 ushort max) 546{ 547 struct r300_render* r300render = r300_render(render); 548 struct pipe_screen* screen = r300render->r300->context.screen; 549 CS_LOCALS(r300render->r300); 550 BEGIN_CS(2); 551 OUT_CS_REG(R300_VAP_VF_MAX_VTX_INDX, max); 552 END_CS; 553 554 r300render->vbo_max_used = MAX2(r300render->vbo_max_used, 555 r300render->vertex_size * (max + 1)); 556 pipe_buffer_unmap(screen, r300render->vbo); 557} 558 559static void r300_render_release_vertices(struct vbuf_render* render) 560{ 561 struct r300_render* r300render = r300_render(render); 562 563 r300render->vbo_offset += r300render->vbo_max_used; 564 r300render->vbo_max_used = 0; 565} 566 567static boolean r300_render_set_primitive(struct vbuf_render* render, 568 unsigned prim) 569{ 570 struct r300_render* r300render = r300_render(render); 571 572 r300render->prim = prim; 573 r300render->hwprim = r300_translate_primitive(prim); 574 575 return TRUE; 576} 577 578static void r300_render_draw_arrays(struct vbuf_render* render, 579 unsigned start, 580 unsigned count) 581{ 582 struct r300_render* r300render = r300_render(render); 583 struct r300_context* r300 = r300render->r300; 584 585 CS_LOCALS(r300); 586 587 r300_emit_dirty_state(r300); 588 589 DBG(r300, DBG_DRAW, "r300: Doing vbuf render, count %d\n", count); 590 591 BEGIN_CS(2); 592 OUT_CS_PKT3(R300_PACKET3_3D_DRAW_VBUF_2, 0); 593 OUT_CS(R300_VAP_VF_CNTL__PRIM_WALK_VERTEX_LIST | (count << 16) | 594 r300render->hwprim); 595 END_CS; 596} 597 598static void r300_render_draw(struct vbuf_render* render, 599 const ushort* indices, 600 uint count) 601{ 602 struct r300_render* r300render = r300_render(render); 603 struct r300_context* r300 = r300render->r300; 604 int i; 605 606 CS_LOCALS(r300); 607 608 r300_emit_dirty_state(r300); 609 610 BEGIN_CS(2 + (count+1)/2); 611 OUT_CS_PKT3(R300_PACKET3_3D_DRAW_INDX_2, (count+1)/2); 612 OUT_CS(R300_VAP_VF_CNTL__PRIM_WALK_INDICES | (count << 16) | 613 r300render->hwprim); 614 for (i = 0; i < count-1; i += 2) { 615 OUT_CS(indices[i+1] << 16 | indices[i]); 616 } 617 if (count % 2) { 618 OUT_CS(indices[count-1]); 619 } 620 END_CS; 621} 622 623static void r300_render_destroy(struct vbuf_render* render) 624{ 625 FREE(render); 626} 627 628static struct vbuf_render* r300_render_create(struct r300_context* r300) 629{ 630 struct r300_render* r300render = CALLOC_STRUCT(r300_render); 631 632 r300render->r300 = r300; 633 634 /* XXX find real numbers plz */ 635 r300render->base.max_vertex_buffer_bytes = 128 * 1024; 636 r300render->base.max_indices = 16 * 1024; 637 638 r300render->base.get_vertex_info = r300_render_get_vertex_info; 639 r300render->base.allocate_vertices = r300_render_allocate_vertices; 640 r300render->base.map_vertices = r300_render_map_vertices; 641 r300render->base.unmap_vertices = r300_render_unmap_vertices; 642 r300render->base.set_primitive = r300_render_set_primitive; 643 r300render->base.draw = r300_render_draw; 644 r300render->base.draw_arrays = r300_render_draw_arrays; 645 r300render->base.release_vertices = r300_render_release_vertices; 646 r300render->base.destroy = r300_render_destroy; 647 648 r300render->vbo = NULL; 649 r300render->vbo_size = 0; 650 r300render->vbo_offset = 0; 651 652 return &r300render->base; 653} 654 655struct draw_stage* r300_draw_stage(struct r300_context* r300) 656{ 657 struct vbuf_render* render; 658 struct draw_stage* stage; 659 660 render = r300_render_create(r300); 661 662 if (!render) { 663 return NULL; 664 } 665 666 stage = draw_vbuf_stage(r300->draw, render); 667 668 if (!stage) { 669 render->destroy(render); 670 return NULL; 671 } 672 673 draw_set_render(r300->draw, render); 674 675 return stage; 676} 677