r300_render.c revision 232ddfec24d2e707c4e374d817c559cc6415d609
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 r300_emit_buffer_validate(r300); 306 307 if (!r300_setup_vertex_buffers(r300)) { 308 return; 309 } 310 311 if (indexSize == 1) { 312 r300_shorten_ubyte_elts(r300, &indexBuffer, count); 313 indexSize = 2; 314 } 315 316 if (!r300->winsys->add_buffer(r300->winsys, indexBuffer, 317 RADEON_GEM_DOMAIN_GTT, 0)) { 318 goto cleanup; 319 } 320 321 if (!r300->winsys->validate(r300->winsys)) { 322 goto cleanup; 323 } 324 325 r300_emit_dirty_state(r300); 326 327 r300_emit_aos(r300, 0); 328 329 r300_emit_draw_elements(r300, indexBuffer, indexSize, minIndex, maxIndex, 330 mode, start, count); 331 332cleanup: 333 if (indexBuffer != orgIndexBuffer) { 334 pipe->screen->buffer_destroy(indexBuffer); 335 } 336} 337 338/* Simple helpers for context setup. Should probably be moved to util. */ 339void r300_draw_elements(struct pipe_context* pipe, 340 struct pipe_buffer* indexBuffer, 341 unsigned indexSize, unsigned mode, 342 unsigned start, unsigned count) 343{ 344 pipe->draw_range_elements(pipe, indexBuffer, indexSize, 0, ~0, 345 mode, start, count); 346} 347 348void r300_draw_arrays(struct pipe_context* pipe, unsigned mode, 349 unsigned start, unsigned count) 350{ 351 struct r300_context* r300 = r300_context(pipe); 352 353 if (!u_trim_pipe_prim(mode, &count)) { 354 return; 355 } 356 357 if (count > 65535) { 358 /* XXX: driver needs to handle this -- use the functions in 359 * aux/indices to split this into several smaller primitives. 360 */ 361 return; 362 } 363 364 r300_update_derived_state(r300); 365 366 r300_emit_buffer_validate(r300); 367 368 if (!r300_setup_vertex_buffers(r300)) { 369 return; 370 } 371 372 r300_emit_dirty_state(r300); 373 374 if (FALSE && count <= 4 && r300->vertex_buffer_count == 1) { 375 r300_emit_draw_immediate(r300, mode, start, count); 376 } else { 377 r300_emit_aos(r300, start); 378 r300_emit_draw_arrays(r300, mode, count); 379 } 380} 381 382/**************************************************************************** 383 * The rest of this file is for SW TCL rendering only. Please be polite and * 384 * keep these functions separated so that they are easier to locate. ~C. * 385 ***************************************************************************/ 386 387/* SW TCL arrays, using Draw. */ 388void r300_swtcl_draw_arrays(struct pipe_context* pipe, 389 unsigned mode, 390 unsigned start, 391 unsigned count) 392{ 393 struct r300_context* r300 = r300_context(pipe); 394 int i; 395 396 if (!u_trim_pipe_prim(mode, &count)) { 397 return; 398 } 399 400 for (i = 0; i < r300->vertex_buffer_count; i++) { 401 void* buf = pipe_buffer_map(pipe->screen, 402 r300->vertex_buffer[i].buffer, 403 PIPE_BUFFER_USAGE_CPU_READ); 404 draw_set_mapped_vertex_buffer(r300->draw, i, buf); 405 } 406 407 draw_set_mapped_element_buffer(r300->draw, 0, NULL); 408 409 draw_set_mapped_constant_buffer(r300->draw, 410 PIPE_SHADER_VERTEX, 411 r300->shader_constants[PIPE_SHADER_VERTEX].constants, 412 r300->shader_constants[PIPE_SHADER_VERTEX].count * 413 (sizeof(float) * 4)); 414 415 draw_arrays(r300->draw, mode, start, count); 416 417 for (i = 0; i < r300->vertex_buffer_count; i++) { 418 pipe_buffer_unmap(pipe->screen, r300->vertex_buffer[i].buffer); 419 draw_set_mapped_vertex_buffer(r300->draw, i, NULL); 420 } 421} 422 423/* SW TCL elements, using Draw. */ 424void r300_swtcl_draw_range_elements(struct pipe_context* pipe, 425 struct pipe_buffer* indexBuffer, 426 unsigned indexSize, 427 unsigned minIndex, 428 unsigned maxIndex, 429 unsigned mode, 430 unsigned start, 431 unsigned count) 432{ 433 struct r300_context* r300 = r300_context(pipe); 434 int i; 435 void* indices; 436 437 if (!u_trim_pipe_prim(mode, &count)) { 438 return; 439 } 440 441 for (i = 0; i < r300->vertex_buffer_count; i++) { 442 void* buf = pipe_buffer_map(pipe->screen, 443 r300->vertex_buffer[i].buffer, 444 PIPE_BUFFER_USAGE_CPU_READ); 445 draw_set_mapped_vertex_buffer(r300->draw, i, buf); 446 } 447 448 indices = pipe_buffer_map(pipe->screen, indexBuffer, 449 PIPE_BUFFER_USAGE_CPU_READ); 450 draw_set_mapped_element_buffer_range(r300->draw, indexSize, 451 minIndex, maxIndex, indices); 452 453 draw_set_mapped_constant_buffer(r300->draw, 454 PIPE_SHADER_VERTEX, 455 r300->shader_constants[PIPE_SHADER_VERTEX].constants, 456 r300->shader_constants[PIPE_SHADER_VERTEX].count * 457 (sizeof(float) * 4)); 458 459 draw_arrays(r300->draw, mode, start, count); 460 461 for (i = 0; i < r300->vertex_buffer_count; i++) { 462 pipe_buffer_unmap(pipe->screen, r300->vertex_buffer[i].buffer); 463 draw_set_mapped_vertex_buffer(r300->draw, i, NULL); 464 } 465 466 pipe_buffer_unmap(pipe->screen, indexBuffer); 467 draw_set_mapped_element_buffer_range(r300->draw, 0, start, 468 start + count - 1, NULL); 469} 470 471/* Object for rendering using Draw. */ 472struct r300_render { 473 /* Parent class */ 474 struct vbuf_render base; 475 476 /* Pipe context */ 477 struct r300_context* r300; 478 479 /* Vertex information */ 480 size_t vertex_size; 481 unsigned prim; 482 unsigned hwprim; 483 484 /* VBO */ 485 struct pipe_buffer* vbo; 486 size_t vbo_size; 487 size_t vbo_offset; 488 size_t vbo_max_used; 489 void * vbo_ptr; 490}; 491 492static INLINE struct r300_render* 493r300_render(struct vbuf_render* render) 494{ 495 return (struct r300_render*)render; 496} 497 498static const struct vertex_info* 499r300_render_get_vertex_info(struct vbuf_render* render) 500{ 501 struct r300_render* r300render = r300_render(render); 502 struct r300_context* r300 = r300render->r300; 503 504 r300_update_derived_state(r300); 505 506 return &r300->vertex_info->vinfo; 507} 508 509static boolean r300_render_allocate_vertices(struct vbuf_render* render, 510 ushort vertex_size, 511 ushort count) 512{ 513 struct r300_render* r300render = r300_render(render); 514 struct r300_context* r300 = r300render->r300; 515 struct pipe_screen* screen = r300->context.screen; 516 size_t size = (size_t)vertex_size * (size_t)count; 517 518 if (size + r300render->vbo_offset > r300render->vbo_size) 519 { 520 pipe_buffer_reference(&r300->vbo, NULL); 521 r300render->vbo = pipe_buffer_create(screen, 522 64, 523 PIPE_BUFFER_USAGE_VERTEX, 524 R300_MAX_VBO_SIZE); 525 r300render->vbo_offset = 0; 526 r300render->vbo_size = R300_MAX_VBO_SIZE; 527 } 528 529 r300render->vertex_size = vertex_size; 530 r300->vbo = r300render->vbo; 531 r300->vbo_offset = r300render->vbo_offset; 532 533 return (r300render->vbo) ? TRUE : FALSE; 534} 535 536static void* r300_render_map_vertices(struct vbuf_render* render) 537{ 538 struct r300_render* r300render = r300_render(render); 539 struct pipe_screen* screen = r300render->r300->context.screen; 540 541 r300render->vbo_ptr = pipe_buffer_map(screen, r300render->vbo, 542 PIPE_BUFFER_USAGE_CPU_WRITE); 543 544 return ((uint8_t*)r300render->vbo_ptr + r300render->vbo_offset); 545} 546 547static void r300_render_unmap_vertices(struct vbuf_render* render, 548 ushort min, 549 ushort max) 550{ 551 struct r300_render* r300render = r300_render(render); 552 struct pipe_screen* screen = r300render->r300->context.screen; 553 CS_LOCALS(r300render->r300); 554 BEGIN_CS(2); 555 OUT_CS_REG(R300_VAP_VF_MAX_VTX_INDX, max); 556 END_CS; 557 558 r300render->vbo_max_used = MAX2(r300render->vbo_max_used, 559 r300render->vertex_size * (max + 1)); 560 pipe_buffer_unmap(screen, r300render->vbo); 561} 562 563static void r300_render_release_vertices(struct vbuf_render* render) 564{ 565 struct r300_render* r300render = r300_render(render); 566 567 r300render->vbo_offset += r300render->vbo_max_used; 568 r300render->vbo_max_used = 0; 569} 570 571static boolean r300_render_set_primitive(struct vbuf_render* render, 572 unsigned prim) 573{ 574 struct r300_render* r300render = r300_render(render); 575 576 r300render->prim = prim; 577 r300render->hwprim = r300_translate_primitive(prim); 578 579 return TRUE; 580} 581 582static void r300_render_draw_arrays(struct vbuf_render* render, 583 unsigned start, 584 unsigned count) 585{ 586 struct r300_render* r300render = r300_render(render); 587 struct r300_context* r300 = r300render->r300; 588 589 CS_LOCALS(r300); 590 591 r300_emit_dirty_state(r300); 592 593 DBG(r300, DBG_DRAW, "r300: Doing vbuf render, count %d\n", count); 594 595 BEGIN_CS(2); 596 OUT_CS_PKT3(R300_PACKET3_3D_DRAW_VBUF_2, 0); 597 OUT_CS(R300_VAP_VF_CNTL__PRIM_WALK_VERTEX_LIST | (count << 16) | 598 r300render->hwprim); 599 END_CS; 600} 601 602static void r300_render_draw(struct vbuf_render* render, 603 const ushort* indices, 604 uint count) 605{ 606 struct r300_render* r300render = r300_render(render); 607 struct r300_context* r300 = r300render->r300; 608 int i; 609 610 CS_LOCALS(r300); 611 612 r300_emit_dirty_state(r300); 613 614 BEGIN_CS(2 + (count+1)/2); 615 OUT_CS_PKT3(R300_PACKET3_3D_DRAW_INDX_2, (count+1)/2); 616 OUT_CS(R300_VAP_VF_CNTL__PRIM_WALK_INDICES | (count << 16) | 617 r300render->hwprim); 618 for (i = 0; i < count-1; i += 2) { 619 OUT_CS(indices[i+1] << 16 | indices[i]); 620 } 621 if (count % 2) { 622 OUT_CS(indices[count-1]); 623 } 624 END_CS; 625} 626 627static void r300_render_destroy(struct vbuf_render* render) 628{ 629 FREE(render); 630} 631 632static struct vbuf_render* r300_render_create(struct r300_context* r300) 633{ 634 struct r300_render* r300render = CALLOC_STRUCT(r300_render); 635 636 r300render->r300 = r300; 637 638 /* XXX find real numbers plz */ 639 r300render->base.max_vertex_buffer_bytes = 128 * 1024; 640 r300render->base.max_indices = 16 * 1024; 641 642 r300render->base.get_vertex_info = r300_render_get_vertex_info; 643 r300render->base.allocate_vertices = r300_render_allocate_vertices; 644 r300render->base.map_vertices = r300_render_map_vertices; 645 r300render->base.unmap_vertices = r300_render_unmap_vertices; 646 r300render->base.set_primitive = r300_render_set_primitive; 647 r300render->base.draw = r300_render_draw; 648 r300render->base.draw_arrays = r300_render_draw_arrays; 649 r300render->base.release_vertices = r300_render_release_vertices; 650 r300render->base.destroy = r300_render_destroy; 651 652 r300render->vbo = NULL; 653 r300render->vbo_size = 0; 654 r300render->vbo_offset = 0; 655 656 return &r300render->base; 657} 658 659struct draw_stage* r300_draw_stage(struct r300_context* r300) 660{ 661 struct vbuf_render* render; 662 struct draw_stage* stage; 663 664 render = r300_render_create(r300); 665 666 if (!render) { 667 return NULL; 668 } 669 670 stage = draw_vbuf_stage(r300->draw, render); 671 672 if (!stage) { 673 render->destroy(render); 674 return NULL; 675 } 676 677 draw_set_render(r300->draw, render); 678 679 return stage; 680} 681