r300_render.c revision 8d0a540020f6389ca5efcd0e1fbef45a4a1f5b6a
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 47static uint32_t r300_translate_primitive(unsigned prim) 48{ 49 switch (prim) { 50 case PIPE_PRIM_POINTS: 51 return R300_VAP_VF_CNTL__PRIM_POINTS; 52 case PIPE_PRIM_LINES: 53 return R300_VAP_VF_CNTL__PRIM_LINES; 54 case PIPE_PRIM_LINE_LOOP: 55 return R300_VAP_VF_CNTL__PRIM_LINE_LOOP; 56 case PIPE_PRIM_LINE_STRIP: 57 return R300_VAP_VF_CNTL__PRIM_LINE_STRIP; 58 case PIPE_PRIM_TRIANGLES: 59 return R300_VAP_VF_CNTL__PRIM_TRIANGLES; 60 case PIPE_PRIM_TRIANGLE_STRIP: 61 return R300_VAP_VF_CNTL__PRIM_TRIANGLE_STRIP; 62 case PIPE_PRIM_TRIANGLE_FAN: 63 return R300_VAP_VF_CNTL__PRIM_TRIANGLE_FAN; 64 case PIPE_PRIM_QUADS: 65 return R300_VAP_VF_CNTL__PRIM_QUADS; 66 case PIPE_PRIM_QUAD_STRIP: 67 return R300_VAP_VF_CNTL__PRIM_QUAD_STRIP; 68 case PIPE_PRIM_POLYGON: 69 return R300_VAP_VF_CNTL__PRIM_POLYGON; 70 default: 71 return 0; 72 } 73} 74 75static uint32_t r300_provoking_vertex_fixes(struct r300_context *r300, 76 unsigned mode) 77{ 78 struct r300_rs_state* rs = (struct r300_rs_state*)r300->rs_state.state; 79 uint32_t color_control = rs->color_control; 80 81 /* By default (see r300_state.c:r300_create_rs_state) color_control is 82 * initialized to provoking the first vertex. 83 * 84 * Triangle fans must be reduced to the second vertex, not the first, in 85 * Gallium flatshade-first mode, as per the GL spec. 86 * (http://www.opengl.org/registry/specs/ARB/provoking_vertex.txt) 87 * 88 * Quads never provoke correctly in flatshade-first mode. The first 89 * vertex is never considered as provoking, so only the second, third, 90 * and fourth vertices can be selected, and both "third" and "last" modes 91 * select the fourth vertex. This is probably due to D3D lacking quads. 92 * 93 * Similarly, polygons reduce to the first, not the last, vertex, when in 94 * "last" mode, and all other modes start from the second vertex. 95 * 96 * ~ C. 97 */ 98 99 if (rs->rs.flatshade_first) { 100 switch (mode) { 101 case PIPE_PRIM_TRIANGLE_FAN: 102 color_control |= R300_GA_COLOR_CONTROL_PROVOKING_VERTEX_SECOND; 103 break; 104 case PIPE_PRIM_QUADS: 105 case PIPE_PRIM_QUAD_STRIP: 106 case PIPE_PRIM_POLYGON: 107 color_control |= R300_GA_COLOR_CONTROL_PROVOKING_VERTEX_LAST; 108 break; 109 default: 110 color_control |= R300_GA_COLOR_CONTROL_PROVOKING_VERTEX_FIRST; 111 break; 112 } 113 } else { 114 color_control |= R300_GA_COLOR_CONTROL_PROVOKING_VERTEX_LAST; 115 } 116 117 return color_control; 118} 119 120void r500_emit_index_bias(struct r300_context *r300, int index_bias) 121{ 122 CS_LOCALS(r300); 123 124 BEGIN_CS(2); 125 OUT_CS_REG(R500_VAP_INDEX_OFFSET, 126 (index_bias & 0xFFFFFF) | (index_bias < 0 ? 1<<24 : 0)); 127 END_CS; 128} 129 130/* This function splits the index bias value into two parts: 131 * - buffer_offset: the value that can be safely added to buffer offsets 132 * in r300_emit_vertex_arrays (it must yield a positive offset when added to 133 * a vertex buffer offset) 134 * - index_offset: the value that must be manually subtracted from indices 135 * in an index buffer to achieve negative offsets. */ 136static void r300_split_index_bias(struct r300_context *r300, int index_bias, 137 int *buffer_offset, int *index_offset) 138{ 139 struct pipe_vertex_buffer *vb, *vbufs = r300->vertex_buffer; 140 struct pipe_vertex_element *velem = r300->velems->velem; 141 unsigned i, size; 142 int max_neg_bias; 143 144 if (index_bias < 0) { 145 /* See how large index bias we may subtract. We must be careful 146 * here because negative buffer offsets are not allowed 147 * by the DRM API. */ 148 max_neg_bias = INT_MAX; 149 for (i = 0; i < r300->velems->count; i++) { 150 vb = &vbufs[velem[i].vertex_buffer_index]; 151 size = (vb->buffer_offset + velem[i].src_offset) / vb->stride; 152 max_neg_bias = MIN2(max_neg_bias, size); 153 } 154 155 /* Now set the minimum allowed value. */ 156 *buffer_offset = MAX2(-max_neg_bias, index_bias); 157 } else { 158 /* A positive index bias is OK. */ 159 *buffer_offset = index_bias; 160 } 161 162 *index_offset = index_bias - *buffer_offset; 163} 164 165enum r300_prepare_flags { 166 PREP_FIRST_DRAW = (1 << 0), /* call emit_dirty_state and friends? */ 167 PREP_VALIDATE_VBOS = (1 << 1), /* validate VBOs? */ 168 PREP_EMIT_AOS = (1 << 2), /* call emit_vertex_arrays? */ 169 PREP_EMIT_AOS_SWTCL = (1 << 3), /* call emit_vertex_arrays_swtcl? */ 170 PREP_INDEXED = (1 << 4) /* is this draw_elements? */ 171}; 172 173/** 174 * Check if the requested number of dwords is available in the CS and 175 * if not, flush. 176 * \param r300 The context. 177 * \param flags See r300_prepare_flags. 178 * \param cs_dwords The number of dwords to reserve in CS. 179 * \return TRUE if the CS was flushed 180 */ 181static boolean r300_reserve_cs_dwords(struct r300_context *r300, 182 enum r300_prepare_flags flags, 183 unsigned cs_dwords) 184{ 185 boolean flushed = FALSE; 186 boolean first_draw = flags & PREP_FIRST_DRAW; 187 boolean emit_vertex_arrays = flags & PREP_EMIT_AOS; 188 boolean emit_vertex_arrays_swtcl = flags & PREP_EMIT_AOS_SWTCL; 189 190 /* Add dirty state, index offset, and AOS. */ 191 if (first_draw) { 192 cs_dwords += r300_get_num_dirty_dwords(r300); 193 194 if (r300->screen->caps.index_bias_supported) 195 cs_dwords += 2; /* emit_index_offset */ 196 197 if (emit_vertex_arrays) 198 cs_dwords += 55; /* emit_vertex_arrays */ 199 200 if (emit_vertex_arrays_swtcl) 201 cs_dwords += 7; /* emit_vertex_arrays_swtcl */ 202 } 203 204 cs_dwords += r300_get_num_cs_end_dwords(r300); 205 206 /* Reserve requested CS space. */ 207 if (cs_dwords > (R300_MAX_CMDBUF_DWORDS - r300->cs->cdw)) { 208 r300->context.flush(&r300->context, 0, NULL); 209 flushed = TRUE; 210 } 211 212 return flushed; 213} 214 215/** 216 * Validate buffers and emit dirty state. 217 * \param r300 The context. 218 * \param flags See r300_prepare_flags. 219 * \param index_buffer The index buffer to validate. The parameter may be NULL. 220 * \param buffer_offset The offset passed to emit_vertex_arrays. 221 * \param index_bias The index bias to emit. 222 * \return TRUE if rendering should be skipped 223 */ 224static boolean r300_emit_states(struct r300_context *r300, 225 enum r300_prepare_flags flags, 226 struct pipe_resource *index_buffer, 227 int buffer_offset, 228 int index_bias) 229{ 230 boolean first_draw = flags & PREP_FIRST_DRAW; 231 boolean emit_vertex_arrays = flags & PREP_EMIT_AOS; 232 boolean emit_vertex_arrays_swtcl = flags & PREP_EMIT_AOS_SWTCL; 233 boolean indexed = flags & PREP_INDEXED; 234 boolean validate_vbos = flags & PREP_VALIDATE_VBOS; 235 236 /* Validate buffers and emit dirty state if needed. */ 237 if (first_draw) { 238 if (r300->validate_buffers) { 239 if (!r300_emit_buffer_validate(r300, validate_vbos, 240 index_buffer)) { 241 fprintf(stderr, "r300: CS space validation failed. " 242 "(not enough memory?) Skipping rendering.\n"); 243 return FALSE; 244 } 245 246 /* Consider the validation done only if everything was validated. */ 247 if (validate_vbos) { 248 r300->validate_buffers = FALSE; 249 if (r300->any_user_vbs) 250 r300->upload_vb_validated = TRUE; 251 if (r300->index_buffer.buffer && 252 r300_is_user_buffer(r300->index_buffer.buffer)) { 253 r300->upload_ib_validated = TRUE; 254 } 255 } 256 } 257 258 r300_emit_dirty_state(r300); 259 if (r300->screen->caps.index_bias_supported) { 260 if (r300->screen->caps.has_tcl) 261 r500_emit_index_bias(r300, index_bias); 262 else 263 r500_emit_index_bias(r300, 0); 264 } 265 266 if (emit_vertex_arrays) 267 r300_emit_vertex_arrays(r300, buffer_offset, indexed); 268 269 if (emit_vertex_arrays_swtcl) 270 r300_emit_vertex_arrays_swtcl(r300, indexed); 271 } 272 273 return TRUE; 274} 275 276/** 277 * Check if the requested number of dwords is available in the CS and 278 * if not, flush. Then validate buffers and emit dirty state. 279 * \param r300 The context. 280 * \param flags See r300_prepare_flags. 281 * \param index_buffer The index buffer to validate. The parameter may be NULL. 282 * \param cs_dwords The number of dwords to reserve in CS. 283 * \param buffer_offset The offset passed to emit_vertex_arrays. 284 * \param index_bias The index bias to emit. 285 * \return TRUE if rendering should be skipped 286 */ 287static boolean r300_prepare_for_rendering(struct r300_context *r300, 288 enum r300_prepare_flags flags, 289 struct pipe_resource *index_buffer, 290 unsigned cs_dwords, 291 int buffer_offset, 292 int index_bias) 293{ 294 if (r300_reserve_cs_dwords(r300, flags, cs_dwords)) 295 flags |= PREP_FIRST_DRAW; 296 297 return r300_emit_states(r300, flags, index_buffer, buffer_offset, index_bias); 298} 299 300static boolean immd_is_good_idea(struct r300_context *r300, 301 unsigned count) 302{ 303 struct pipe_vertex_element* velem; 304 struct pipe_resource *buf; 305 boolean checked[PIPE_MAX_ATTRIBS] = {0}; 306 unsigned vertex_element_count = r300->velems->count; 307 unsigned i, vbi; 308 309 if (DBG_ON(r300, DBG_NO_IMMD)) { 310 return FALSE; 311 } 312 313 if (r300->draw) { 314 return FALSE; 315 } 316 317 if (count * r300->velems->vertex_size_dwords > IMMD_DWORDS) { 318 return FALSE; 319 } 320 321 /* We shouldn't map buffers referenced by CS, busy buffers, 322 * and ones placed in VRAM. */ 323 for (i = 0; i < vertex_element_count; i++) { 324 velem = &r300->velems->velem[i]; 325 vbi = velem->vertex_buffer_index; 326 327 if (!checked[vbi]) { 328 buf = r300->real_vertex_buffer[vbi]; 329 330 if (!(r300_buffer(buf)->domain & R300_DOMAIN_GTT)) { 331 return FALSE; 332 } 333 334 if (r300_buffer_is_referenced(&r300->context, buf, 335 R300_REF_CS | R300_REF_HW)) { 336 /* It's a very bad idea to map it... */ 337 return FALSE; 338 } 339 checked[vbi] = TRUE; 340 } 341 } 342 return TRUE; 343} 344 345/***************************************************************************** 346 * The HWTCL draw functions. * 347 ****************************************************************************/ 348 349static void r300_emit_draw_arrays_immediate(struct r300_context *r300, 350 unsigned mode, 351 unsigned start, 352 unsigned count) 353{ 354 struct pipe_vertex_element* velem; 355 struct pipe_vertex_buffer* vbuf; 356 unsigned vertex_element_count = r300->velems->count; 357 unsigned i, v, vbi; 358 359 /* Size of the vertex, in dwords. */ 360 unsigned vertex_size = r300->velems->vertex_size_dwords; 361 362 /* The number of dwords for this draw operation. */ 363 unsigned dwords = 9 + count * vertex_size; 364 365 /* Size of the vertex element, in dwords. */ 366 unsigned size[PIPE_MAX_ATTRIBS]; 367 368 /* Stride to the same attrib in the next vertex in the vertex buffer, 369 * in dwords. */ 370 unsigned stride[PIPE_MAX_ATTRIBS]; 371 372 /* Mapped vertex buffers. */ 373 uint32_t* map[PIPE_MAX_ATTRIBS]; 374 uint32_t* mapelem[PIPE_MAX_ATTRIBS]; 375 struct pipe_transfer* transfer[PIPE_MAX_ATTRIBS] = {0}; 376 377 CS_LOCALS(r300); 378 379 if (!r300_prepare_for_rendering(r300, PREP_FIRST_DRAW, NULL, dwords, 0, 0)) 380 return; 381 382 /* Calculate the vertex size, offsets, strides etc. and map the buffers. */ 383 for (i = 0; i < vertex_element_count; i++) { 384 velem = &r300->velems->velem[i]; 385 size[i] = r300->velems->hw_format_size[i] / 4; 386 vbi = velem->vertex_buffer_index; 387 vbuf = &r300->vertex_buffer[vbi]; 388 stride[i] = vbuf->stride / 4; 389 390 /* Map the buffer. */ 391 if (!transfer[vbi]) { 392 map[vbi] = (uint32_t*)pipe_buffer_map(&r300->context, 393 r300->real_vertex_buffer[vbi], 394 PIPE_TRANSFER_READ, 395 &transfer[vbi]); 396 map[vbi] += (vbuf->buffer_offset / 4) + stride[i] * start; 397 } 398 mapelem[i] = map[vbi] + (velem->src_offset / 4); 399 } 400 401 BEGIN_CS(dwords); 402 OUT_CS_REG(R300_GA_COLOR_CONTROL, 403 r300_provoking_vertex_fixes(r300, mode)); 404 OUT_CS_REG(R300_VAP_VTX_SIZE, vertex_size); 405 OUT_CS_REG_SEQ(R300_VAP_VF_MAX_VTX_INDX, 2); 406 OUT_CS(count - 1); 407 OUT_CS(0); 408 OUT_CS_PKT3(R300_PACKET3_3D_DRAW_IMMD_2, count * vertex_size); 409 OUT_CS(R300_VAP_VF_CNTL__PRIM_WALK_VERTEX_EMBEDDED | (count << 16) | 410 r300_translate_primitive(mode)); 411 412 /* Emit vertices. */ 413 for (v = 0; v < count; v++) { 414 for (i = 0; i < vertex_element_count; i++) { 415 OUT_CS_TABLE(&mapelem[i][stride[i] * v], size[i]); 416 } 417 } 418 END_CS; 419 420 /* Unmap buffers. */ 421 for (i = 0; i < vertex_element_count; i++) { 422 vbi = r300->velems->velem[i].vertex_buffer_index; 423 424 if (transfer[vbi]) { 425 pipe_buffer_unmap(&r300->context, transfer[vbi]); 426 transfer[vbi] = NULL; 427 } 428 } 429} 430 431static void r300_emit_draw_arrays(struct r300_context *r300, 432 unsigned mode, 433 unsigned count) 434{ 435 boolean alt_num_verts = count > 65535; 436 CS_LOCALS(r300); 437 438 if (count >= (1 << 24)) { 439 fprintf(stderr, "r300: Got a huge number of vertices: %i, " 440 "refusing to render.\n", count); 441 return; 442 } 443 444 BEGIN_CS(7 + (alt_num_verts ? 2 : 0)); 445 if (alt_num_verts) { 446 OUT_CS_REG(R500_VAP_ALT_NUM_VERTICES, count); 447 } 448 OUT_CS_REG(R300_GA_COLOR_CONTROL, 449 r300_provoking_vertex_fixes(r300, mode)); 450 OUT_CS_REG_SEQ(R300_VAP_VF_MAX_VTX_INDX, 2); 451 OUT_CS(count - 1); 452 OUT_CS(0); 453 OUT_CS_PKT3(R300_PACKET3_3D_DRAW_VBUF_2, 0); 454 OUT_CS(R300_VAP_VF_CNTL__PRIM_WALK_VERTEX_LIST | (count << 16) | 455 r300_translate_primitive(mode) | 456 (alt_num_verts ? R500_VAP_VF_CNTL__USE_ALT_NUM_VERTS : 0)); 457 END_CS; 458} 459 460static void r300_emit_draw_elements(struct r300_context *r300, 461 struct pipe_resource* indexBuffer, 462 unsigned indexSize, 463 unsigned minIndex, 464 unsigned maxIndex, 465 unsigned mode, 466 unsigned start, 467 unsigned count, 468 uint16_t *imm_indices3) 469{ 470 uint32_t count_dwords, offset_dwords; 471 boolean alt_num_verts = count > 65535; 472 CS_LOCALS(r300); 473 474 if (count >= (1 << 24)) { 475 fprintf(stderr, "r300: Got a huge number of vertices: %i, " 476 "refusing to render.\n", count); 477 return; 478 } 479 480 DBG(r300, DBG_DRAW, "r300: Indexbuf of %u indices, min %u max %u\n", 481 count, minIndex, maxIndex); 482 483 BEGIN_CS(5); 484 OUT_CS_REG(R300_GA_COLOR_CONTROL, 485 r300_provoking_vertex_fixes(r300, mode)); 486 OUT_CS_REG_SEQ(R300_VAP_VF_MAX_VTX_INDX, 2); 487 OUT_CS(maxIndex); 488 OUT_CS(minIndex); 489 END_CS; 490 491 /* If start is odd, render the first triangle with indices embedded 492 * in the command stream. This will increase start by 3 and make it 493 * even. We can then proceed without a fallback. */ 494 if (indexSize == 2 && (start & 1) && 495 mode == PIPE_PRIM_TRIANGLES) { 496 BEGIN_CS(4); 497 OUT_CS_PKT3(R300_PACKET3_3D_DRAW_INDX_2, 2); 498 OUT_CS(R300_VAP_VF_CNTL__PRIM_WALK_INDICES | (3 << 16) | 499 R300_VAP_VF_CNTL__PRIM_TRIANGLES); 500 OUT_CS(imm_indices3[1] << 16 | imm_indices3[0]); 501 OUT_CS(imm_indices3[2]); 502 END_CS; 503 504 start += 3; 505 count -= 3; 506 if (!count) 507 return; 508 } 509 510 offset_dwords = indexSize * start / sizeof(uint32_t); 511 512 BEGIN_CS(8 + (alt_num_verts ? 2 : 0)); 513 if (alt_num_verts) { 514 OUT_CS_REG(R500_VAP_ALT_NUM_VERTICES, count); 515 } 516 OUT_CS_PKT3(R300_PACKET3_3D_DRAW_INDX_2, 0); 517 if (indexSize == 4) { 518 count_dwords = count; 519 OUT_CS(R300_VAP_VF_CNTL__PRIM_WALK_INDICES | (count << 16) | 520 R300_VAP_VF_CNTL__INDEX_SIZE_32bit | 521 r300_translate_primitive(mode) | 522 (alt_num_verts ? R500_VAP_VF_CNTL__USE_ALT_NUM_VERTS : 0)); 523 } else { 524 count_dwords = (count + 1) / 2; 525 OUT_CS(R300_VAP_VF_CNTL__PRIM_WALK_INDICES | (count << 16) | 526 r300_translate_primitive(mode) | 527 (alt_num_verts ? R500_VAP_VF_CNTL__USE_ALT_NUM_VERTS : 0)); 528 } 529 530 /* INDX_BUFFER is a truly special packet3. 531 * Unlike most other packet3, where the offset is after the count, 532 * the order is reversed, so the relocation ends up carrying the 533 * size of the indexbuf instead of the offset. 534 */ 535 OUT_CS_PKT3(R300_PACKET3_INDX_BUFFER, 2); 536 OUT_CS(R300_INDX_BUFFER_ONE_REG_WR | (R300_VAP_PORT_IDX0 >> 2) | 537 (0 << R300_INDX_BUFFER_SKIP_SHIFT)); 538 OUT_CS(offset_dwords << 2); 539 OUT_CS_BUF_RELOC(indexBuffer, count_dwords); 540 541 END_CS; 542} 543 544/* This is the fast-path drawing & emission for HW TCL. */ 545static void r300_draw_range_elements(struct pipe_context* pipe, 546 int indexBias, 547 unsigned minIndex, 548 unsigned maxIndex, 549 unsigned mode, 550 unsigned start, 551 unsigned count) 552{ 553 struct r300_context* r300 = r300_context(pipe); 554 struct pipe_resource *indexBuffer = r300->index_buffer.buffer; 555 unsigned indexSize = r300->index_buffer.index_size; 556 struct pipe_resource* orgIndexBuffer = indexBuffer; 557 boolean alt_num_verts = r300->screen->caps.is_r500 && 558 count > 65536 && 559 r300->rws->get_value(r300->rws, R300_VID_DRM_2_3_0); 560 unsigned short_count; 561 int buffer_offset = 0, index_offset = 0; /* for index bias emulation */ 562 uint16_t indices3[3]; 563 564 if (indexBias && !r300->screen->caps.index_bias_supported) { 565 r300_split_index_bias(r300, indexBias, &buffer_offset, &index_offset); 566 } 567 568 r300_translate_index_buffer(r300, &indexBuffer, &indexSize, index_offset, 569 &start, count); 570 571 /* Fallback for misaligned ushort indices. */ 572 if (indexSize == 2 && (start & 1) && 573 !r300_is_user_buffer(indexBuffer)) { 574 struct pipe_transfer *transfer; 575 struct pipe_resource *userbuf; 576 577 uint16_t *ptr = pipe_buffer_map(pipe, indexBuffer, 578 PIPE_TRANSFER_READ, &transfer); 579 580 if (mode == PIPE_PRIM_TRIANGLES) { 581 memcpy(indices3, ptr + start, 6); 582 } else { 583 /* Copy the mapped index buffer directly to the upload buffer. 584 * The start index will be aligned simply from the fact that 585 * every sub-buffer in u_upload_mgr is aligned. */ 586 userbuf = pipe->screen->user_buffer_create(pipe->screen, 587 ptr, 0, 588 PIPE_BIND_INDEX_BUFFER); 589 indexBuffer = userbuf; 590 r300_upload_index_buffer(r300, &indexBuffer, indexSize, &start, count); 591 pipe_resource_reference(&userbuf, NULL); 592 } 593 pipe_buffer_unmap(pipe, transfer); 594 } else { 595 if (r300_is_user_buffer(indexBuffer)) 596 r300_upload_index_buffer(r300, &indexBuffer, indexSize, &start, count); 597 } 598 599 /* 19 dwords for emit_draw_elements. Give up if the function fails. */ 600 if (!r300_prepare_for_rendering(r300, 601 PREP_FIRST_DRAW | PREP_VALIDATE_VBOS | PREP_EMIT_AOS | 602 PREP_INDEXED, indexBuffer, 19, buffer_offset, indexBias)) 603 goto done; 604 605 if (alt_num_verts || count <= 65535) { 606 r300_emit_draw_elements(r300, indexBuffer, indexSize, 607 minIndex, maxIndex, mode, start, count, indices3); 608 } else { 609 do { 610 short_count = MIN2(count, 65534); 611 r300_emit_draw_elements(r300, indexBuffer, indexSize, 612 minIndex, maxIndex, 613 mode, start, short_count, indices3); 614 615 start += short_count; 616 count -= short_count; 617 618 /* 15 dwords for emit_draw_elements */ 619 if (count) { 620 if (!r300_prepare_for_rendering(r300, 621 PREP_VALIDATE_VBOS | PREP_EMIT_AOS | PREP_INDEXED, 622 indexBuffer, 19, buffer_offset, indexBias)) 623 goto done; 624 } 625 } while (count); 626 } 627 628done: 629 if (indexBuffer != orgIndexBuffer) { 630 pipe_resource_reference( &indexBuffer, NULL ); 631 } 632} 633 634static void r300_draw_arrays(struct pipe_context* pipe, unsigned mode, 635 unsigned start, unsigned count) 636{ 637 struct r300_context* r300 = r300_context(pipe); 638 boolean alt_num_verts = r300->screen->caps.is_r500 && 639 count > 65536 && 640 r300->rws->get_value(r300->rws, R300_VID_DRM_2_3_0); 641 unsigned short_count; 642 643 if (immd_is_good_idea(r300, count)) { 644 r300_emit_draw_arrays_immediate(r300, mode, start, count); 645 } else { 646 /* 9 spare dwords for emit_draw_arrays. Give up if the function fails. */ 647 if (!r300_prepare_for_rendering(r300, 648 PREP_FIRST_DRAW | PREP_VALIDATE_VBOS | PREP_EMIT_AOS, 649 NULL, 9, start, 0)) 650 return; 651 652 if (alt_num_verts || count <= 65535) { 653 r300_emit_draw_arrays(r300, mode, count); 654 } else { 655 do { 656 short_count = MIN2(count, 65535); 657 r300_emit_draw_arrays(r300, mode, short_count); 658 659 start += short_count; 660 count -= short_count; 661 662 /* 9 spare dwords for emit_draw_arrays. Give up if the function fails. */ 663 if (count) { 664 if (!r300_prepare_for_rendering(r300, 665 PREP_VALIDATE_VBOS | PREP_EMIT_AOS, NULL, 9, 666 start, 0)) 667 return; 668 } 669 } while (count); 670 } 671 } 672} 673 674static void r300_draw_vbo(struct pipe_context* pipe, 675 const struct pipe_draw_info *info) 676{ 677 struct r300_context* r300 = r300_context(pipe); 678 unsigned count = info->count; 679 boolean translate = FALSE; 680 boolean indexed = info->indexed && r300->index_buffer.buffer; 681 unsigned min_index = 0; 682 unsigned max_index = r300->vertex_buffer_max_index; 683 684 if (r300->skip_rendering) { 685 return; 686 } 687 688 if (!u_trim_pipe_prim(info->mode, &count)) { 689 return; 690 } 691 692 if (indexed) { 693 int real_min_index, real_max_index; 694 /* Compute the start for draw_elements, taking the offset into account. */ 695 unsigned start_indexed = 696 info->start + 697 (r300->index_buffer.offset / r300->index_buffer.index_size); 698 699 assert(r300->index_buffer.offset % r300->index_buffer.index_size == 0); 700 701 /* Index buffer range checking. */ 702 if ((start_indexed + count) * r300->index_buffer.index_size > 703 r300->index_buffer.buffer->width0) { 704 fprintf(stderr, "r300: Invalid index buffer range. Skipping rendering.\n"); 705 return; 706 } 707 708 min_index = MAX2(min_index, info->min_index); 709 max_index = MIN2(max_index, info->max_index); 710 real_min_index = (int)min_index - info->index_bias; 711 real_max_index = (int)max_index - info->index_bias; 712 713 if (max_index >= (1 << 24) - 1) { 714 fprintf(stderr, "r300: Invalid max_index: %i. Skipping rendering...\n", max_index); 715 return; 716 } 717 718 r300_update_derived_state(r300); 719 720 /* Set up the fallback for an incompatible vertex layout if needed. */ 721 if (r300->incompatible_vb_layout || r300->velems->incompatible_layout) { 722 r300_begin_vertex_translate(r300, real_min_index, real_max_index); 723 translate = TRUE; 724 } 725 726 /* Upload vertex buffers. */ 727 if (r300->any_user_vbs) { 728 r300_upload_user_buffers(r300, real_min_index, real_max_index); 729 } 730 731 r300_draw_range_elements(pipe, info->index_bias, min_index, max_index, 732 info->mode, start_indexed, count); 733 } else { 734 min_index = MAX2(min_index, info->start); 735 max_index = MIN2(max_index, info->start + count - 1); 736 737 r300_update_derived_state(r300); 738 739 /* Set up the fallback for an incompatible vertex layout if needed. */ 740 if (r300->incompatible_vb_layout || r300->velems->incompatible_layout) { 741 r300_begin_vertex_translate(r300, min_index, max_index); 742 translate = TRUE; 743 } 744 745 /* Upload vertex buffers. */ 746 if (r300->any_user_vbs) { 747 r300_upload_user_buffers(r300, min_index, max_index); 748 } 749 750 r300_draw_arrays(pipe, info->mode, info->start, count); 751 } 752 753 if (translate) { 754 r300_end_vertex_translate(r300); 755 } 756} 757 758/**************************************************************************** 759 * The rest of this file is for SW TCL rendering only. Please be polite and * 760 * keep these functions separated so that they are easier to locate. ~C. * 761 ***************************************************************************/ 762 763/* SW TCL elements, using Draw. */ 764static void r300_swtcl_draw_vbo(struct pipe_context* pipe, 765 const struct pipe_draw_info *info) 766{ 767 struct r300_context* r300 = r300_context(pipe); 768 struct pipe_transfer *vb_transfer[PIPE_MAX_ATTRIBS]; 769 struct pipe_transfer *ib_transfer = NULL; 770 unsigned count = info->count; 771 int i; 772 void *indices = NULL; 773 boolean indexed = info->indexed && r300->index_buffer.buffer; 774 775 if (r300->skip_rendering) { 776 return; 777 } 778 779 if (!u_trim_pipe_prim(info->mode, &count)) { 780 return; 781 } 782 783 r300_update_derived_state(r300); 784 785 r300_reserve_cs_dwords(r300, 786 PREP_FIRST_DRAW | PREP_EMIT_AOS_SWTCL | 787 (indexed ? PREP_INDEXED : 0), 788 indexed ? 256 : 6); 789 790 for (i = 0; i < r300->real_vertex_buffer_count; i++) { 791 if (r300->vertex_buffer[i].buffer) { 792 void *buf = pipe_buffer_map(pipe, 793 r300->vertex_buffer[i].buffer, 794 PIPE_TRANSFER_READ, 795 &vb_transfer[i]); 796 draw_set_mapped_vertex_buffer(r300->draw, i, buf); 797 } 798 } 799 800 if (indexed) { 801 indices = pipe_buffer_map(pipe, r300->index_buffer.buffer, 802 PIPE_TRANSFER_READ, &ib_transfer); 803 } 804 805 draw_set_mapped_index_buffer(r300->draw, indices); 806 807 r300->draw_vbo_locked = TRUE; 808 r300->draw_first_emitted = FALSE; 809 draw_vbo(r300->draw, info); 810 draw_flush(r300->draw); 811 r300->draw_vbo_locked = FALSE; 812 813 for (i = 0; i < r300->real_vertex_buffer_count; i++) { 814 if (r300->vertex_buffer[i].buffer) { 815 pipe_buffer_unmap(pipe, vb_transfer[i]); 816 draw_set_mapped_vertex_buffer(r300->draw, i, NULL); 817 } 818 } 819 820 if (indexed) { 821 pipe_buffer_unmap(pipe, ib_transfer); 822 draw_set_mapped_index_buffer(r300->draw, NULL); 823 } 824} 825 826/* Object for rendering using Draw. */ 827struct r300_render { 828 /* Parent class */ 829 struct vbuf_render base; 830 831 /* Pipe context */ 832 struct r300_context* r300; 833 834 /* Vertex information */ 835 size_t vertex_size; 836 unsigned prim; 837 unsigned hwprim; 838 839 /* VBO */ 840 size_t vbo_max_used; 841 void * vbo_ptr; 842 843 struct pipe_transfer *vbo_transfer; 844}; 845 846static INLINE struct r300_render* 847r300_render(struct vbuf_render* render) 848{ 849 return (struct r300_render*)render; 850} 851 852static const struct vertex_info* 853r300_render_get_vertex_info(struct vbuf_render* render) 854{ 855 struct r300_render* r300render = r300_render(render); 856 struct r300_context* r300 = r300render->r300; 857 858 return &r300->vertex_info; 859} 860 861static boolean r300_render_allocate_vertices(struct vbuf_render* render, 862 ushort vertex_size, 863 ushort count) 864{ 865 struct r300_render* r300render = r300_render(render); 866 struct r300_context* r300 = r300render->r300; 867 struct pipe_screen* screen = r300->context.screen; 868 size_t size = (size_t)vertex_size * (size_t)count; 869 870 DBG(r300, DBG_DRAW, "r300: render_allocate_vertices (size: %d)\n", size); 871 872 if (size + r300->draw_vbo_offset > r300->draw_vbo_size) 873 { 874 pipe_resource_reference(&r300->vbo, NULL); 875 r300->vbo = pipe_buffer_create(screen, 876 PIPE_BIND_VERTEX_BUFFER, 877 R300_MAX_DRAW_VBO_SIZE); 878 r300->draw_vbo_offset = 0; 879 r300->draw_vbo_size = R300_MAX_DRAW_VBO_SIZE; 880 r300->validate_buffers = TRUE; 881 } 882 883 r300render->vertex_size = vertex_size; 884 885 return (r300->vbo) ? TRUE : FALSE; 886} 887 888static void* r300_render_map_vertices(struct vbuf_render* render) 889{ 890 struct r300_render* r300render = r300_render(render); 891 struct r300_context* r300 = r300render->r300; 892 893 assert(!r300render->vbo_transfer); 894 895 DBG(r300, DBG_DRAW, "r300: render_map_vertices\n"); 896 897 r300render->vbo_ptr = pipe_buffer_map(&r300render->r300->context, 898 r300->vbo, 899 PIPE_TRANSFER_WRITE, 900 &r300render->vbo_transfer); 901 902 assert(r300render->vbo_ptr); 903 904 return ((uint8_t*)r300render->vbo_ptr + r300->draw_vbo_offset); 905} 906 907static void r300_render_unmap_vertices(struct vbuf_render* render, 908 ushort min, 909 ushort max) 910{ 911 struct r300_render* r300render = r300_render(render); 912 struct pipe_context* context = &r300render->r300->context; 913 struct r300_context* r300 = r300render->r300; 914 915 assert(r300render->vbo_transfer); 916 917 DBG(r300, DBG_DRAW, "r300: render_unmap_vertices\n"); 918 919 r300render->vbo_max_used = MAX2(r300render->vbo_max_used, 920 r300render->vertex_size * (max + 1)); 921 pipe_buffer_unmap(context, r300render->vbo_transfer); 922 923 r300render->vbo_transfer = NULL; 924} 925 926static void r300_render_release_vertices(struct vbuf_render* render) 927{ 928 struct r300_render* r300render = r300_render(render); 929 struct r300_context* r300 = r300render->r300; 930 931 DBG(r300, DBG_DRAW, "r300: render_release_vertices\n"); 932 933 r300->draw_vbo_offset += r300render->vbo_max_used; 934 r300render->vbo_max_used = 0; 935} 936 937static boolean r300_render_set_primitive(struct vbuf_render* render, 938 unsigned prim) 939{ 940 struct r300_render* r300render = r300_render(render); 941 942 r300render->prim = prim; 943 r300render->hwprim = r300_translate_primitive(prim); 944 945 return TRUE; 946} 947 948static void r300_render_draw_arrays(struct vbuf_render* render, 949 unsigned start, 950 unsigned count) 951{ 952 struct r300_render* r300render = r300_render(render); 953 struct r300_context* r300 = r300render->r300; 954 uint8_t* ptr; 955 unsigned i; 956 unsigned dwords = 6; 957 958 CS_LOCALS(r300); 959 (void) i; (void) ptr; 960 961 DBG(r300, DBG_DRAW, "r300: render_draw_arrays (count: %d)\n", count); 962 963 if (r300->draw_first_emitted) { 964 if (!r300_prepare_for_rendering(r300, 965 PREP_FIRST_DRAW | PREP_EMIT_AOS_SWTCL, 966 NULL, 6, 0, 0)) 967 return; 968 } else { 969 if (!r300_emit_states(r300, 970 PREP_FIRST_DRAW | PREP_EMIT_AOS_SWTCL, 971 NULL, 0, 0)) 972 return; 973 } 974 975 /* Uncomment to dump all VBOs rendered through this interface. 976 * Slow and noisy! 977 ptr = pipe_buffer_map(&r300render->r300->context, 978 r300render->vbo, PIPE_TRANSFER_READ, 979 &r300render->vbo_transfer); 980 981 for (i = 0; i < count; i++) { 982 printf("r300: Vertex %d\n", i); 983 draw_dump_emitted_vertex(&r300->vertex_info, ptr); 984 ptr += r300->vertex_info.size * 4; 985 printf("\n"); 986 } 987 988 pipe_buffer_unmap(&r300render->r300->context, r300render->vbo, 989 r300render->vbo_transfer); 990 */ 991 992 BEGIN_CS(dwords); 993 OUT_CS_REG(R300_GA_COLOR_CONTROL, 994 r300_provoking_vertex_fixes(r300, r300render->prim)); 995 OUT_CS_REG(R300_VAP_VF_MAX_VTX_INDX, count - 1); 996 OUT_CS_PKT3(R300_PACKET3_3D_DRAW_VBUF_2, 0); 997 OUT_CS(R300_VAP_VF_CNTL__PRIM_WALK_VERTEX_LIST | (count << 16) | 998 r300render->hwprim); 999 END_CS; 1000 1001 r300->draw_first_emitted = TRUE; 1002} 1003 1004static void r300_render_draw_elements(struct vbuf_render* render, 1005 const ushort* indices, 1006 uint count) 1007{ 1008 struct r300_render* r300render = r300_render(render); 1009 struct r300_context* r300 = r300render->r300; 1010 int i; 1011 unsigned end_cs_dwords; 1012 unsigned max_index = (r300->draw_vbo_size - r300->draw_vbo_offset) / 1013 (r300render->r300->vertex_info.size * 4) - 1; 1014 unsigned short_count; 1015 unsigned free_dwords; 1016 1017 CS_LOCALS(r300); 1018 DBG(r300, DBG_DRAW, "r300: render_draw_elements (count: %d)\n", count); 1019 1020 if (r300->draw_first_emitted) { 1021 if (!r300_prepare_for_rendering(r300, 1022 PREP_FIRST_DRAW | PREP_EMIT_AOS_SWTCL | PREP_INDEXED, 1023 NULL, 256, 0, 0)) 1024 return; 1025 } else { 1026 if (!r300_emit_states(r300, 1027 PREP_FIRST_DRAW | PREP_EMIT_AOS_SWTCL | PREP_INDEXED, 1028 NULL, 0, 0)) 1029 return; 1030 } 1031 1032 /* Below we manage the CS space manually because there may be more 1033 * indices than it can fit in CS. */ 1034 1035 end_cs_dwords = r300_get_num_cs_end_dwords(r300); 1036 1037 while (count) { 1038 free_dwords = R300_MAX_CMDBUF_DWORDS - r300->cs->cdw; 1039 1040 short_count = MIN2(count, (free_dwords - end_cs_dwords - 6) * 2); 1041 1042 BEGIN_CS(6 + (short_count+1)/2); 1043 OUT_CS_REG(R300_GA_COLOR_CONTROL, 1044 r300_provoking_vertex_fixes(r300, r300render->prim)); 1045 OUT_CS_REG(R300_VAP_VF_MAX_VTX_INDX, max_index); 1046 OUT_CS_PKT3(R300_PACKET3_3D_DRAW_INDX_2, (short_count+1)/2); 1047 OUT_CS(R300_VAP_VF_CNTL__PRIM_WALK_INDICES | (short_count << 16) | 1048 r300render->hwprim); 1049 for (i = 0; i < short_count-1; i += 2) { 1050 OUT_CS(indices[i+1] << 16 | indices[i]); 1051 } 1052 if (short_count % 2) { 1053 OUT_CS(indices[short_count-1]); 1054 } 1055 END_CS; 1056 1057 /* OK now subtract the emitted indices and see if we need to emit 1058 * another draw packet. */ 1059 indices += short_count; 1060 count -= short_count; 1061 1062 if (count) { 1063 if (!r300_prepare_for_rendering(r300, 1064 PREP_EMIT_AOS_SWTCL | PREP_INDEXED, 1065 NULL, 256, 0, 0)) 1066 return; 1067 1068 end_cs_dwords = r300_get_num_cs_end_dwords(r300); 1069 } 1070 } 1071 1072 r300->draw_first_emitted = TRUE; 1073} 1074 1075static void r300_render_destroy(struct vbuf_render* render) 1076{ 1077 FREE(render); 1078} 1079 1080static struct vbuf_render* r300_render_create(struct r300_context* r300) 1081{ 1082 struct r300_render* r300render = CALLOC_STRUCT(r300_render); 1083 1084 r300render->r300 = r300; 1085 1086 r300render->base.max_vertex_buffer_bytes = 1024 * 1024; 1087 r300render->base.max_indices = 16 * 1024; 1088 1089 r300render->base.get_vertex_info = r300_render_get_vertex_info; 1090 r300render->base.allocate_vertices = r300_render_allocate_vertices; 1091 r300render->base.map_vertices = r300_render_map_vertices; 1092 r300render->base.unmap_vertices = r300_render_unmap_vertices; 1093 r300render->base.set_primitive = r300_render_set_primitive; 1094 r300render->base.draw_elements = r300_render_draw_elements; 1095 r300render->base.draw_arrays = r300_render_draw_arrays; 1096 r300render->base.release_vertices = r300_render_release_vertices; 1097 r300render->base.destroy = r300_render_destroy; 1098 1099 return &r300render->base; 1100} 1101 1102struct draw_stage* r300_draw_stage(struct r300_context* r300) 1103{ 1104 struct vbuf_render* render; 1105 struct draw_stage* stage; 1106 1107 render = r300_render_create(r300); 1108 1109 if (!render) { 1110 return NULL; 1111 } 1112 1113 stage = draw_vbuf_stage(r300->draw, render); 1114 1115 if (!stage) { 1116 render->destroy(render); 1117 return NULL; 1118 } 1119 1120 draw_set_render(r300->draw, render); 1121 1122 return stage; 1123} 1124 1125void r300_draw_flush_vbuf(struct r300_context *r300) 1126{ 1127 pipe_resource_reference(&r300->vbo, NULL); 1128 r300->draw_vbo_size = 0; 1129} 1130 1131/**************************************************************************** 1132 * End of SW TCL functions * 1133 ***************************************************************************/ 1134 1135/* This functions is used to draw a rectangle for the blitter module. 1136 * 1137 * If we rendered a quad, the pixels on the main diagonal 1138 * would be computed and stored twice, which makes the clear/copy codepaths 1139 * somewhat inefficient. Instead we use a rectangular point sprite. */ 1140static void r300_blitter_draw_rectangle(struct blitter_context *blitter, 1141 unsigned x1, unsigned y1, 1142 unsigned x2, unsigned y2, 1143 float depth, 1144 enum blitter_attrib_type type, 1145 const float attrib[4]) 1146{ 1147 struct r300_context *r300 = r300_context(util_blitter_get_pipe(blitter)); 1148 unsigned last_sprite_coord_enable = r300->sprite_coord_enable; 1149 unsigned width = x2 - x1; 1150 unsigned height = y2 - y1; 1151 unsigned vertex_size = 1152 type == UTIL_BLITTER_ATTRIB_COLOR || !r300->draw ? 8 : 4; 1153 unsigned dwords = 13 + vertex_size + 1154 (type == UTIL_BLITTER_ATTRIB_TEXCOORD ? 7 : 0); 1155 const float zeros[4] = {0, 0, 0, 0}; 1156 CS_LOCALS(r300); 1157 1158 r300->context.set_vertex_buffers(&r300->context, 0, NULL); 1159 1160 if (type == UTIL_BLITTER_ATTRIB_TEXCOORD) 1161 r300->sprite_coord_enable = 1; 1162 1163 r300_update_derived_state(r300); 1164 1165 /* Mark some states we don't care about as non-dirty. */ 1166 r300->clip_state.dirty = FALSE; 1167 r300->viewport_state.dirty = FALSE; 1168 1169 if (!r300_prepare_for_rendering(r300, PREP_FIRST_DRAW, NULL, dwords, 0, 0)) 1170 goto done; 1171 1172 DBG(r300, DBG_DRAW, "r300: draw_rectangle\n"); 1173 1174 BEGIN_CS(dwords); 1175 /* Set up GA. */ 1176 OUT_CS_REG(R300_GA_POINT_SIZE, (height * 6) | ((width * 6) << 16)); 1177 1178 if (type == UTIL_BLITTER_ATTRIB_TEXCOORD) { 1179 /* Set up the GA to generate texcoords. */ 1180 OUT_CS_REG(R300_GB_ENABLE, R300_GB_POINT_STUFF_ENABLE | 1181 (R300_GB_TEX_STR << R300_GB_TEX0_SOURCE_SHIFT)); 1182 OUT_CS_REG_SEQ(R300_GA_POINT_S0, 4); 1183 OUT_CS_32F(attrib[0]); 1184 OUT_CS_32F(attrib[3]); 1185 OUT_CS_32F(attrib[2]); 1186 OUT_CS_32F(attrib[1]); 1187 } 1188 1189 /* Set up VAP controls. */ 1190 OUT_CS_REG(R300_VAP_CLIP_CNTL, R300_CLIP_DISABLE); 1191 OUT_CS_REG(R300_VAP_VTE_CNTL, R300_VTX_XY_FMT | R300_VTX_Z_FMT); 1192 OUT_CS_REG(R300_VAP_VTX_SIZE, vertex_size); 1193 OUT_CS_REG_SEQ(R300_VAP_VF_MAX_VTX_INDX, 2); 1194 OUT_CS(1); 1195 OUT_CS(0); 1196 1197 /* Draw. */ 1198 OUT_CS_PKT3(R300_PACKET3_3D_DRAW_IMMD_2, vertex_size); 1199 OUT_CS(R300_VAP_VF_CNTL__PRIM_WALK_VERTEX_EMBEDDED | (1 << 16) | 1200 R300_VAP_VF_CNTL__PRIM_POINTS); 1201 1202 OUT_CS_32F(x1 + width * 0.5f); 1203 OUT_CS_32F(y1 + height * 0.5f); 1204 OUT_CS_32F(depth); 1205 OUT_CS_32F(1); 1206 1207 if (vertex_size == 8) { 1208 if (!attrib) 1209 attrib = zeros; 1210 OUT_CS_TABLE(attrib, 4); 1211 } 1212 END_CS; 1213 1214done: 1215 /* Restore the state. */ 1216 r300_mark_atom_dirty(r300, &r300->clip_state); 1217 r300_mark_atom_dirty(r300, &r300->rs_state); 1218 r300_mark_atom_dirty(r300, &r300->viewport_state); 1219 1220 r300->sprite_coord_enable = last_sprite_coord_enable; 1221} 1222 1223static void r300_resource_resolve(struct pipe_context* pipe, 1224 struct pipe_resource* dest, 1225 unsigned dst_layer, 1226 struct pipe_resource* src, 1227 unsigned src_layer) 1228{ 1229 struct r300_context* r300 = r300_context(pipe); 1230 struct pipe_surface* srcsurf, surf_tmpl; 1231 struct r300_aa_state *aa = (struct r300_aa_state*)r300->aa_state.state; 1232 float color[] = {0, 0, 0, 0}; 1233 1234 memset(&surf_tmpl, 0, sizeof(surf_tmpl)); 1235 surf_tmpl.format = src->format; 1236 surf_tmpl.usage = 0; /* not really a surface hence no bind flags */ 1237 surf_tmpl.u.tex.level = 0; /* msaa resources cannot have mipmaps */ 1238 surf_tmpl.u.tex.first_layer = src_layer; 1239 surf_tmpl.u.tex.last_layer = src_layer; 1240 srcsurf = pipe->create_surface(pipe, src, &surf_tmpl); 1241 surf_tmpl.format = dest->format; 1242 surf_tmpl.u.tex.first_layer = dst_layer; 1243 surf_tmpl.u.tex.last_layer = dst_layer; 1244 1245 DBG(r300, DBG_DRAW, "r300: Resolving resource...\n"); 1246 1247 /* Enable AA resolve. */ 1248 aa->dest = r300_surface(pipe->create_surface(pipe, dest, &surf_tmpl)); 1249 1250 aa->aaresolve_ctl = 1251 R300_RB3D_AARESOLVE_CTL_AARESOLVE_MODE_RESOLVE | 1252 R300_RB3D_AARESOLVE_CTL_AARESOLVE_ALPHA_AVERAGE; 1253 r300->aa_state.size = 12; 1254 r300_mark_atom_dirty(r300, &r300->aa_state); 1255 1256 /* Resolve the surface. */ 1257 r300->context.clear_render_target(pipe, 1258 srcsurf, color, 0, 0, src->width0, src->height0); 1259 1260 /* Disable AA resolve. */ 1261 aa->aaresolve_ctl = 0; 1262 r300->aa_state.size = 4; 1263 r300_mark_atom_dirty(r300, &r300->aa_state); 1264 1265 pipe_surface_reference((struct pipe_surface**)&srcsurf, NULL); 1266 pipe_surface_reference((struct pipe_surface**)&aa->dest, NULL); 1267} 1268 1269void r300_init_render_functions(struct r300_context *r300) 1270{ 1271 /* Set draw functions based on presence of HW TCL. */ 1272 if (r300->screen->caps.has_tcl) { 1273 r300->context.draw_vbo = r300_draw_vbo; 1274 } else { 1275 r300->context.draw_vbo = r300_swtcl_draw_vbo; 1276 } 1277 1278 r300->context.resource_resolve = r300_resource_resolve; 1279 r300->blitter->draw_rectangle = r300_blitter_draw_rectangle; 1280 1281 /* Plug in the two-sided stencil reference value fallback if needed. */ 1282 if (!r300->screen->caps.is_r500) 1283 r300_plug_in_stencil_ref_fallback(r300); 1284} 1285