1 /************************************************************************** 2 * 3 * Copyright 2007 Tungsten Graphics, Inc., Cedar Park, Texas. 4 * All Rights Reserved. 5 * 6 * Permission is hereby granted, free of charge, to any person obtaining a 7 * copy of this software and associated documentation files (the 8 * "Software"), to deal in the Software without restriction, including 9 * without limitation the rights to use, copy, modify, merge, publish, 10 * distribute, sub license, and/or sell copies of the Software, and to 11 * permit persons to whom the Software is furnished to do so, subject to 12 * the following conditions: 13 * 14 * The above copyright notice and this permission notice (including the 15 * next paragraph) shall be included in all copies or substantial portions 16 * of the Software. 17 * 18 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS 19 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF 20 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. 21 * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR 22 * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, 23 * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE 24 * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. 25 * 26 **************************************************************************/ 27 28 /** 29 * \file 30 * Build post-transformation, post-clipping vertex buffers and element 31 * lists by hooking into the end of the primitive pipeline and 32 * manipulating the vertex_id field in the vertex headers. 33 * 34 * XXX: work in progress 35 * 36 * \author Jos Fonseca <jrfonseca (at) tungstengraphics.com> 37 * \author Keith Whitwell <keith (at) tungstengraphics.com> 38 */ 39 40 41 #include "draw/draw_context.h" 42 #include "draw/draw_vbuf.h" 43 #include "util/u_debug.h" 44 #include "util/u_inlines.h" 45 #include "util/u_math.h" 46 #include "util/u_memory.h" 47 #include "util/u_fifo.h" 48 49 #include "i915_context.h" 50 #include "i915_reg.h" 51 #include "i915_batch.h" 52 #include "i915_state.h" 53 54 55 #define VBUF_MAP_BUFFER 56 57 /** 58 * Primitive renderer for i915. 59 */ 60 struct i915_vbuf_render { 61 struct vbuf_render base; 62 63 struct i915_context *i915; 64 65 /** Vertex size in bytes */ 66 size_t vertex_size; 67 68 /** Software primitive */ 69 unsigned prim; 70 71 /** Hardware primitive */ 72 unsigned hwprim; 73 74 /** Genereate a vertex list */ 75 unsigned fallback; 76 77 /* Stuff for the vbo */ 78 struct i915_winsys_buffer *vbo; 79 size_t vbo_size; /**< current size of allocated buffer */ 80 size_t vbo_alloc_size; /**< minimum buffer size to allocate */ 81 size_t vbo_hw_offset; /**< offset that we program the hardware with */ 82 size_t vbo_sw_offset; /**< offset that we work with */ 83 size_t vbo_index; /**< index offset to be added to all indices */ 84 void *vbo_ptr; 85 size_t vbo_max_used; 86 size_t vbo_max_index; /**< index offset to be added to all indices */ 87 88 #ifndef VBUF_MAP_BUFFER 89 size_t map_used_start; 90 size_t map_used_end; 91 size_t map_size; 92 #endif 93 }; 94 95 96 /** 97 * Basically a cast wrapper. 98 */ 99 static INLINE struct i915_vbuf_render * 100 i915_vbuf_render(struct vbuf_render *render) 101 { 102 assert(render); 103 return (struct i915_vbuf_render *)render; 104 } 105 106 /** 107 * If vbo state differs between renderer and context 108 * push state to the context. This function pushes 109 * hw_offset to i915->vbo_offset and vbo to i915->vbo. 110 * 111 * Side effects: 112 * May updates context vbo_offset and vbo fields. 113 */ 114 static void 115 i915_vbuf_update_vbo_state(struct vbuf_render *render) 116 { 117 struct i915_vbuf_render *i915_render = i915_vbuf_render(render); 118 struct i915_context *i915 = i915_render->i915; 119 120 if (i915->vbo != i915_render->vbo || 121 i915->vbo_offset != i915_render->vbo_hw_offset) { 122 i915->vbo = i915_render->vbo; 123 i915->vbo_offset = i915_render->vbo_hw_offset; 124 i915->dirty |= I915_NEW_VBO; 125 } 126 } 127 128 /** 129 * Callback exported to the draw module. 130 * Returns the current vertex_info. 131 * 132 * Side effects: 133 * If state is dirty update derived state. 134 */ 135 static const struct vertex_info * 136 i915_vbuf_render_get_vertex_info(struct vbuf_render *render) 137 { 138 struct i915_vbuf_render *i915_render = i915_vbuf_render(render); 139 struct i915_context *i915 = i915_render->i915; 140 141 if (i915->dirty) { 142 /* make sure we have up to date vertex layout */ 143 i915_update_derived(i915); 144 } 145 146 return &i915->current.vertex_info; 147 } 148 149 /** 150 * Reserve space in the vbo for vertices. 151 * 152 * Side effects: 153 * None. 154 */ 155 static boolean 156 i915_vbuf_render_reserve(struct i915_vbuf_render *i915_render, size_t size) 157 { 158 struct i915_context *i915 = i915_render->i915; 159 160 if (i915_render->vbo_size < size + i915_render->vbo_sw_offset) 161 return FALSE; 162 163 if (i915->vbo_flushed) 164 return FALSE; 165 166 return TRUE; 167 } 168 169 /** 170 * Allocate a new vbo buffer should there not be enough space for 171 * the requested number of vertices by the draw module. 172 * 173 * Side effects: 174 * Updates hw_offset, sw_offset, index and allocates a new buffer. 175 * Will set i915->vbo to null on buffer allocation. 176 */ 177 static void 178 i915_vbuf_render_new_buf(struct i915_vbuf_render *i915_render, size_t size) 179 { 180 struct i915_context *i915 = i915_render->i915; 181 struct i915_winsys *iws = i915->iws; 182 183 if (i915_render->vbo) { 184 iws->buffer_unmap(iws, i915_render->vbo); 185 iws->buffer_destroy(iws, i915_render->vbo); 186 /* 187 * XXX If buffers where referenced then this should be done in 188 * update_vbo_state but since they arn't and malloc likes to reuse 189 * memory we need to set it to null 190 */ 191 i915->vbo = NULL; 192 i915_render->vbo = NULL; 193 } 194 195 i915->vbo_flushed = 0; 196 197 i915_render->vbo_size = MAX2(size, i915_render->vbo_alloc_size); 198 i915_render->vbo_hw_offset = 0; 199 i915_render->vbo_sw_offset = 0; 200 i915_render->vbo_index = 0; 201 202 #ifndef VBUF_MAP_BUFFER 203 if (i915_render->vbo_size > i915_render->map_size) { 204 i915_render->map_size = i915_render->vbo_size; 205 FREE(i915_render->vbo_ptr); 206 i915_render->vbo_ptr = MALLOC(i915_render->map_size); 207 } 208 #endif 209 210 i915_render->vbo = iws->buffer_create(iws, i915_render->vbo_size, 211 I915_NEW_VERTEX); 212 i915_render->vbo_ptr = iws->buffer_map(iws, i915_render->vbo, TRUE); 213 } 214 215 /** 216 * Callback exported to the draw module. 217 * 218 * Side effects: 219 * Updates hw_offset, sw_offset, index and may allocate 220 * a new buffer. Also updates may update the vbo state 221 * on the i915 context. 222 */ 223 static boolean 224 i915_vbuf_render_allocate_vertices(struct vbuf_render *render, 225 ushort vertex_size, 226 ushort nr_vertices) 227 { 228 struct i915_vbuf_render *i915_render = i915_vbuf_render(render); 229 size_t size = (size_t)vertex_size * (size_t)nr_vertices; 230 size_t offset; 231 232 /* 233 * Align sw_offset with first multiple of vertex size from hw_offset. 234 * Set index to be the multiples from from hw_offset to sw_offset. 235 * i915_vbuf_render_new_buf will reset index, sw_offset, hw_offset 236 * when it allocates a new buffer this is correct. 237 */ 238 { 239 offset = i915_render->vbo_sw_offset - i915_render->vbo_hw_offset; 240 offset = util_align_npot(offset, vertex_size); 241 i915_render->vbo_sw_offset = i915_render->vbo_hw_offset + offset; 242 i915_render->vbo_index = offset / vertex_size; 243 } 244 245 if (!i915_vbuf_render_reserve(i915_render, size)) 246 i915_vbuf_render_new_buf(i915_render, size); 247 248 /* 249 * If a new buffer has been alocated sw_offset, 250 * hw_offset & index will be reset by new_buf 251 */ 252 253 i915_render->vertex_size = vertex_size; 254 255 i915_vbuf_update_vbo_state(render); 256 257 if (!i915_render->vbo) 258 return FALSE; 259 return TRUE; 260 } 261 262 static void * 263 i915_vbuf_render_map_vertices(struct vbuf_render *render) 264 { 265 struct i915_vbuf_render *i915_render = i915_vbuf_render(render); 266 struct i915_context *i915 = i915_render->i915; 267 268 if (i915->vbo_flushed) 269 debug_printf("%s bad vbo flush occured stalling on hw\n", __FUNCTION__); 270 271 #ifdef VBUF_MAP_BUFFER 272 return (unsigned char *)i915_render->vbo_ptr + i915_render->vbo_sw_offset; 273 #else 274 return (unsigned char *)i915_render->vbo_ptr; 275 #endif 276 } 277 278 static void 279 i915_vbuf_render_unmap_vertices(struct vbuf_render *render, 280 ushort min_index, 281 ushort max_index) 282 { 283 struct i915_vbuf_render *i915_render = i915_vbuf_render(render); 284 struct i915_context *i915 = i915_render->i915; 285 struct i915_winsys *iws = i915->iws; 286 287 i915_render->vbo_max_index = max_index; 288 i915_render->vbo_max_used = MAX2(i915_render->vbo_max_used, i915_render->vertex_size * (max_index + 1)); 289 #ifdef VBUF_MAP_BUFFER 290 (void)iws; 291 #else 292 i915_render->map_used_start = i915_render->vertex_size * min_index; 293 i915_render->map_used_end = i915_render->vertex_size * (max_index + 1); 294 iws->buffer_write(iws, i915_render->vbo, 295 i915_render->map_used_start + i915_render->vbo_sw_offset, 296 i915_render->map_used_end - i915_render->map_used_start, 297 (unsigned char *)i915_render->vbo_ptr + i915_render->map_used_start); 298 299 #endif 300 } 301 302 /** 303 * Ensure that the given max_index given is not larger ushort max. 304 * If it is larger then ushort max it advanced the hw_offset to the 305 * same position in the vbo as sw_offset and set index to zero. 306 * 307 * Side effects: 308 * On failure update hw_offset and index. 309 */ 310 static void 311 i915_vbuf_ensure_index_bounds(struct vbuf_render *render, 312 unsigned max_index) 313 { 314 struct i915_vbuf_render *i915_render = i915_vbuf_render(render); 315 316 if (max_index + i915_render->vbo_index < ((1 << 17) - 1)) 317 return; 318 319 i915_render->vbo_hw_offset = i915_render->vbo_sw_offset; 320 i915_render->vbo_index = 0; 321 322 i915_vbuf_update_vbo_state(render); 323 } 324 325 static void 326 i915_vbuf_render_set_primitive(struct vbuf_render *render, 327 unsigned prim) 328 { 329 struct i915_vbuf_render *i915_render = i915_vbuf_render(render); 330 i915_render->prim = prim; 331 332 switch(prim) { 333 case PIPE_PRIM_POINTS: 334 i915_render->hwprim = PRIM3D_POINTLIST; 335 i915_render->fallback = 0; 336 break; 337 case PIPE_PRIM_LINES: 338 i915_render->hwprim = PRIM3D_LINELIST; 339 i915_render->fallback = 0; 340 break; 341 case PIPE_PRIM_LINE_LOOP: 342 i915_render->hwprim = PRIM3D_LINELIST; 343 i915_render->fallback = PIPE_PRIM_LINE_LOOP; 344 break; 345 case PIPE_PRIM_LINE_STRIP: 346 i915_render->hwprim = PRIM3D_LINESTRIP; 347 i915_render->fallback = 0; 348 break; 349 case PIPE_PRIM_TRIANGLES: 350 i915_render->hwprim = PRIM3D_TRILIST; 351 i915_render->fallback = 0; 352 break; 353 case PIPE_PRIM_TRIANGLE_STRIP: 354 i915_render->hwprim = PRIM3D_TRISTRIP; 355 i915_render->fallback = 0; 356 break; 357 case PIPE_PRIM_TRIANGLE_FAN: 358 i915_render->hwprim = PRIM3D_TRIFAN; 359 i915_render->fallback = 0; 360 break; 361 case PIPE_PRIM_QUADS: 362 i915_render->hwprim = PRIM3D_TRILIST; 363 i915_render->fallback = PIPE_PRIM_QUADS; 364 break; 365 case PIPE_PRIM_QUAD_STRIP: 366 i915_render->hwprim = PRIM3D_TRILIST; 367 i915_render->fallback = PIPE_PRIM_QUAD_STRIP; 368 break; 369 case PIPE_PRIM_POLYGON: 370 i915_render->hwprim = PRIM3D_POLY; 371 i915_render->fallback = 0; 372 break; 373 default: 374 /* FIXME: Actually, can handle a lot more just fine... */ 375 assert(0 && "unexpected prim in i915_vbuf_render_set_primitive()"); 376 } 377 } 378 379 /** 380 * Used for fallbacks in draw_arrays 381 */ 382 static void 383 draw_arrays_generate_indices(struct vbuf_render *render, 384 unsigned start, uint nr, 385 unsigned type) 386 { 387 struct i915_vbuf_render *i915_render = i915_vbuf_render(render); 388 struct i915_context *i915 = i915_render->i915; 389 unsigned i; 390 unsigned end = start + nr + i915_render->vbo_index; 391 start += i915_render->vbo_index; 392 393 switch(type) { 394 case 0: 395 for (i = start; i+1 < end; i += 2) 396 OUT_BATCH((i+0) | (i+1) << 16); 397 if (i < end) 398 OUT_BATCH(i); 399 break; 400 case PIPE_PRIM_LINE_LOOP: 401 if (nr >= 2) { 402 for (i = start + 1; i < end; i++) 403 OUT_BATCH((i-1) | (i+0) << 16); 404 OUT_BATCH((i-1) | ( start) << 16); 405 } 406 break; 407 case PIPE_PRIM_QUADS: 408 for (i = start; i + 3 < end; i += 4) { 409 OUT_BATCH((i+0) | (i+1) << 16); 410 OUT_BATCH((i+3) | (i+1) << 16); 411 OUT_BATCH((i+2) | (i+3) << 16); 412 } 413 break; 414 case PIPE_PRIM_QUAD_STRIP: 415 for (i = start; i + 3 < end; i += 2) { 416 OUT_BATCH((i+0) | (i+1) << 16); 417 OUT_BATCH((i+3) | (i+2) << 16); 418 OUT_BATCH((i+0) | (i+3) << 16); 419 } 420 break; 421 default: 422 assert(0); 423 } 424 } 425 426 static unsigned 427 draw_arrays_calc_nr_indices(uint nr, unsigned type) 428 { 429 switch (type) { 430 case 0: 431 return nr; 432 case PIPE_PRIM_LINE_LOOP: 433 if (nr >= 2) 434 return nr * 2; 435 else 436 return 0; 437 case PIPE_PRIM_QUADS: 438 return (nr / 4) * 6; 439 case PIPE_PRIM_QUAD_STRIP: 440 return ((nr - 2) / 2) * 6; 441 default: 442 assert(0); 443 return 0; 444 } 445 } 446 447 static void 448 draw_arrays_fallback(struct vbuf_render *render, 449 unsigned start, 450 uint nr) 451 { 452 struct i915_vbuf_render *i915_render = i915_vbuf_render(render); 453 struct i915_context *i915 = i915_render->i915; 454 unsigned nr_indices; 455 456 nr_indices = draw_arrays_calc_nr_indices(nr, i915_render->fallback); 457 if (!nr_indices) 458 return; 459 460 i915_vbuf_ensure_index_bounds(render, start + nr_indices); 461 462 if (i915->dirty) 463 i915_update_derived(i915); 464 465 if (i915->hardware_dirty) 466 i915_emit_hardware_state(i915); 467 468 if (!BEGIN_BATCH(1 + (nr_indices + 1)/2)) { 469 FLUSH_BATCH(NULL); 470 471 /* Make sure state is re-emitted after a flush: 472 */ 473 i915_emit_hardware_state(i915); 474 i915->vbo_flushed = 1; 475 476 if (!BEGIN_BATCH(1 + (nr_indices + 1)/2)) { 477 assert(0); 478 goto out; 479 } 480 } 481 482 OUT_BATCH(_3DPRIMITIVE | 483 PRIM_INDIRECT | 484 i915_render->hwprim | 485 PRIM_INDIRECT_ELTS | 486 nr_indices); 487 488 draw_arrays_generate_indices(render, start, nr, i915_render->fallback); 489 490 out: 491 return; 492 } 493 494 static void 495 i915_vbuf_render_draw_arrays(struct vbuf_render *render, 496 unsigned start, 497 uint nr) 498 { 499 struct i915_vbuf_render *i915_render = i915_vbuf_render(render); 500 struct i915_context *i915 = i915_render->i915; 501 502 if (i915_render->fallback) { 503 draw_arrays_fallback(render, start, nr); 504 return; 505 } 506 507 i915_vbuf_ensure_index_bounds(render, start + nr); 508 start += i915_render->vbo_index; 509 510 if (i915->dirty) 511 i915_update_derived(i915); 512 513 if (i915->hardware_dirty) 514 i915_emit_hardware_state(i915); 515 516 if (!BEGIN_BATCH(2)) { 517 FLUSH_BATCH(NULL); 518 519 /* Make sure state is re-emitted after a flush: 520 */ 521 i915_emit_hardware_state(i915); 522 i915->vbo_flushed = 1; 523 524 if (!BEGIN_BATCH(2)) { 525 assert(0); 526 goto out; 527 } 528 } 529 530 OUT_BATCH(_3DPRIMITIVE | 531 PRIM_INDIRECT | 532 PRIM_INDIRECT_SEQUENTIAL | 533 i915_render->hwprim | 534 nr); 535 OUT_BATCH(start); /* Beginning vertex index */ 536 537 out: 538 return; 539 } 540 541 /** 542 * Used for normal and fallback emitting of indices 543 * If type is zero normal operation assumed. 544 */ 545 static void 546 draw_generate_indices(struct vbuf_render *render, 547 const ushort *indices, 548 uint nr_indices, 549 unsigned type) 550 { 551 struct i915_vbuf_render *i915_render = i915_vbuf_render(render); 552 struct i915_context *i915 = i915_render->i915; 553 unsigned i; 554 unsigned o = i915_render->vbo_index; 555 556 switch(type) { 557 case 0: 558 for (i = 0; i + 1 < nr_indices; i += 2) { 559 OUT_BATCH((o+indices[i]) | (o+indices[i+1]) << 16); 560 } 561 if (i < nr_indices) { 562 OUT_BATCH((o+indices[i])); 563 } 564 break; 565 case PIPE_PRIM_LINE_LOOP: 566 if (nr_indices >= 2) { 567 for (i = 1; i < nr_indices; i++) 568 OUT_BATCH((o+indices[i-1]) | (o+indices[i]) << 16); 569 OUT_BATCH((o+indices[i-1]) | (o+indices[0]) << 16); 570 } 571 break; 572 case PIPE_PRIM_QUADS: 573 for (i = 0; i + 3 < nr_indices; i += 4) { 574 OUT_BATCH((o+indices[i+0]) | (o+indices[i+1]) << 16); 575 OUT_BATCH((o+indices[i+3]) | (o+indices[i+1]) << 16); 576 OUT_BATCH((o+indices[i+2]) | (o+indices[i+3]) << 16); 577 } 578 break; 579 case PIPE_PRIM_QUAD_STRIP: 580 for (i = 0; i + 3 < nr_indices; i += 2) { 581 OUT_BATCH((o+indices[i+0]) | (o+indices[i+1]) << 16); 582 OUT_BATCH((o+indices[i+3]) | (o+indices[i+2]) << 16); 583 OUT_BATCH((o+indices[i+0]) | (o+indices[i+3]) << 16); 584 } 585 break; 586 default: 587 assert(0); 588 break; 589 } 590 } 591 592 static unsigned 593 draw_calc_nr_indices(uint nr_indices, unsigned type) 594 { 595 switch (type) { 596 case 0: 597 return nr_indices; 598 case PIPE_PRIM_LINE_LOOP: 599 if (nr_indices >= 2) 600 return nr_indices * 2; 601 else 602 return 0; 603 case PIPE_PRIM_QUADS: 604 return (nr_indices / 4) * 6; 605 case PIPE_PRIM_QUAD_STRIP: 606 return ((nr_indices - 2) / 2) * 6; 607 default: 608 assert(0); 609 return 0; 610 } 611 } 612 613 static void 614 i915_vbuf_render_draw_elements(struct vbuf_render *render, 615 const ushort *indices, 616 uint nr_indices) 617 { 618 struct i915_vbuf_render *i915_render = i915_vbuf_render(render); 619 struct i915_context *i915 = i915_render->i915; 620 unsigned save_nr_indices; 621 622 save_nr_indices = nr_indices; 623 624 nr_indices = draw_calc_nr_indices(nr_indices, i915_render->fallback); 625 if (!nr_indices) 626 return; 627 628 i915_vbuf_ensure_index_bounds(render, i915_render->vbo_max_index); 629 630 if (i915->dirty) 631 i915_update_derived(i915); 632 633 if (i915->hardware_dirty) 634 i915_emit_hardware_state(i915); 635 636 if (!BEGIN_BATCH(1 + (nr_indices + 1)/2)) { 637 FLUSH_BATCH(NULL); 638 639 /* Make sure state is re-emitted after a flush: 640 */ 641 i915_emit_hardware_state(i915); 642 i915->vbo_flushed = 1; 643 644 if (!BEGIN_BATCH(1 + (nr_indices + 1)/2)) { 645 assert(0); 646 goto out; 647 } 648 } 649 650 OUT_BATCH(_3DPRIMITIVE | 651 PRIM_INDIRECT | 652 i915_render->hwprim | 653 PRIM_INDIRECT_ELTS | 654 nr_indices); 655 draw_generate_indices(render, 656 indices, 657 save_nr_indices, 658 i915_render->fallback); 659 660 out: 661 return; 662 } 663 664 static void 665 i915_vbuf_render_release_vertices(struct vbuf_render *render) 666 { 667 struct i915_vbuf_render *i915_render = i915_vbuf_render(render); 668 669 i915_render->vbo_sw_offset += i915_render->vbo_max_used; 670 i915_render->vbo_max_used = 0; 671 672 /* 673 * Micro optimization, by calling update here we the offset change 674 * will be picked up on the next pipe_context::draw_*. 675 */ 676 i915_vbuf_update_vbo_state(render); 677 } 678 679 static void 680 i915_vbuf_render_destroy(struct vbuf_render *render) 681 { 682 struct i915_vbuf_render *i915_render = i915_vbuf_render(render); 683 struct i915_context *i915 = i915_render->i915; 684 struct i915_winsys *iws = i915->iws; 685 686 if (i915_render->vbo) { 687 i915->vbo = NULL; 688 iws->buffer_unmap(iws, i915_render->vbo); 689 iws->buffer_destroy(iws, i915_render->vbo); 690 } 691 692 FREE(i915_render); 693 } 694 695 /** 696 * Create a new primitive render. 697 */ 698 static struct vbuf_render * 699 i915_vbuf_render_create(struct i915_context *i915) 700 { 701 struct i915_vbuf_render *i915_render = CALLOC_STRUCT(i915_vbuf_render); 702 struct i915_winsys *iws = i915->iws; 703 int i; 704 705 i915_render->i915 = i915; 706 707 i915_render->base.max_vertex_buffer_bytes = 16*4096; 708 709 /* NOTE: it must be such that state and vertices indices fit in a single 710 * batch buffer. 711 */ 712 i915_render->base.max_indices = 16*1024; 713 714 i915_render->base.get_vertex_info = i915_vbuf_render_get_vertex_info; 715 i915_render->base.allocate_vertices = i915_vbuf_render_allocate_vertices; 716 i915_render->base.map_vertices = i915_vbuf_render_map_vertices; 717 i915_render->base.unmap_vertices = i915_vbuf_render_unmap_vertices; 718 i915_render->base.set_primitive = i915_vbuf_render_set_primitive; 719 i915_render->base.draw_elements = i915_vbuf_render_draw_elements; 720 i915_render->base.draw_arrays = i915_vbuf_render_draw_arrays; 721 i915_render->base.release_vertices = i915_vbuf_render_release_vertices; 722 i915_render->base.destroy = i915_vbuf_render_destroy; 723 724 #ifndef VBUF_MAP_BUFFER 725 i915_render->map_size = 0; 726 i915_render->map_used_start = 0; 727 i915_render->map_used_end = 0; 728 #endif 729 730 i915_render->vbo = NULL; 731 i915_render->vbo_ptr = NULL; 732 i915_render->vbo_size = 0; 733 i915_render->vbo_hw_offset = 0; 734 i915_render->vbo_sw_offset = 0; 735 i915_render->vbo_alloc_size = i915_render->base.max_vertex_buffer_bytes * 4; 736 737 #ifdef VBUF_USE_POOL 738 i915_render->pool_used = FALSE; 739 i915_render->pool_buffer_size = i915_render->vbo_alloc_size; 740 i915_render->pool_fifo = u_fifo_create(6); 741 for (i = 0; i < 6; i++) 742 u_fifo_add(i915_render->pool_fifo, 743 iws->buffer_create(iws, i915_render->pool_buffer_size, 744 I915_NEW_VERTEX)); 745 #else 746 (void)i; 747 (void)iws; 748 #endif 749 750 return &i915_render->base; 751 } 752 753 /** 754 * Create a new primitive vbuf/render stage. 755 */ 756 struct draw_stage *i915_draw_vbuf_stage(struct i915_context *i915) 757 { 758 struct vbuf_render *render; 759 struct draw_stage *stage; 760 761 render = i915_vbuf_render_create(i915); 762 if(!render) 763 return NULL; 764 765 stage = draw_vbuf_stage(i915->draw, render); 766 if(!stage) { 767 render->destroy(render); 768 return NULL; 769 } 770 /** TODO JB: this shouldn't be here */ 771 draw_set_render(i915->draw, render); 772 773 return stage; 774 } 775
