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