draw_context.c revision f4863f3923152448e27ea68d0cd04411bbe3f4c7
15821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)/************************************************************************** 25821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * 35821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * Copyright 2007 Tungsten Graphics, Inc., Cedar Park, Texas. 45821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * All Rights Reserved. 55821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * 65821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * Permission is hereby granted, free of charge, to any person obtaining a 75821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * copy of this software and associated documentation files (the 8cedac228d2dd51db4b79ea1e72c7f249408ee061Torne (Richard Coles) * "Software"), to deal in the Software without restriction, including 9cedac228d2dd51db4b79ea1e72c7f249408ee061Torne (Richard Coles) * without limitation the rights to use, copy, modify, merge, publish, 105821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * distribute, sub license, and/or sell copies of the Software, and to 115821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * permit persons to whom the Software is furnished to do so, subject to 125821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * the following conditions: 135821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * 145821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * The above copyright notice and this permission notice (including the 15cedac228d2dd51db4b79ea1e72c7f249408ee061Torne (Richard Coles) * next paragraph) shall be included in all copies or substantial portions 16cedac228d2dd51db4b79ea1e72c7f249408ee061Torne (Richard Coles) * of the Software. 17cedac228d2dd51db4b79ea1e72c7f249408ee061Torne (Richard Coles) * 185821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS 195821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF 205821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. 215821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR 225821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, 235821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE 245821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. 25 * 26 **************************************************************************/ 27 28 /* 29 * Authors: 30 * Keith Whitwell <keith@tungstengraphics.com> 31 */ 32 33 34#include "pipe/p_context.h" 35#include "util/u_memory.h" 36#include "util/u_math.h" 37#include "util/u_cpu_detect.h" 38#include "util/u_inlines.h" 39#include "draw_context.h" 40#include "draw_vs.h" 41#include "draw_gs.h" 42 43#if HAVE_LLVM 44#include "gallivm/lp_bld_init.h" 45#include "draw_llvm.h" 46 47static boolean 48draw_get_option_use_llvm(void) 49{ 50 static boolean first = TRUE; 51 static boolean value; 52 if (first) { 53 first = FALSE; 54 value = debug_get_bool_option("DRAW_USE_LLVM", TRUE); 55 56#ifdef PIPE_ARCH_X86 57 util_cpu_detect(); 58 /* require SSE2 due to LLVM PR6960. */ 59 if (!util_cpu_caps.has_sse2) 60 value = FALSE; 61#endif 62 } 63 return value; 64} 65#endif 66 67 68/** 69 * Create new draw module context with gallivm state for LLVM JIT. 70 */ 71static struct draw_context * 72draw_create_context(struct pipe_context *pipe, boolean try_llvm, 73 struct gallivm_state *gallivm) 74{ 75 struct draw_context *draw = CALLOC_STRUCT( draw_context ); 76 if (draw == NULL) 77 goto err_out; 78 79#if HAVE_LLVM 80 if (try_llvm && draw_get_option_use_llvm()) { 81 if (!gallivm) { 82 gallivm = gallivm_create(); 83 draw->own_gallivm = gallivm; 84 } 85 86 if (!gallivm) 87 goto err_destroy; 88 89 draw->llvm = draw_llvm_create(draw, gallivm); 90 91 if (!draw->llvm) 92 goto err_destroy; 93 } 94#endif 95 96 if (!draw_init(draw)) 97 goto err_destroy; 98 99 draw->pipe = pipe; 100 101 return draw; 102 103err_destroy: 104 draw_destroy( draw ); 105err_out: 106 return NULL; 107} 108 109 110/** 111 * Create new draw module context, with LLVM JIT. 112 */ 113struct draw_context * 114draw_create(struct pipe_context *pipe) 115{ 116 return draw_create_context(pipe, TRUE, NULL); 117} 118 119 120/** 121 * Create a new draw context, without LLVM JIT. 122 */ 123struct draw_context * 124draw_create_no_llvm(struct pipe_context *pipe) 125{ 126 return draw_create_context(pipe, FALSE, NULL); 127} 128 129 130/** 131 * Create new draw module context with gallivm state for LLVM JIT. 132 */ 133struct draw_context * 134draw_create_gallivm(struct pipe_context *pipe, struct gallivm_state *gallivm) 135{ 136 return draw_create_context(pipe, TRUE, gallivm); 137} 138 139 140boolean draw_init(struct draw_context *draw) 141{ 142 /* 143 * Note that several functions compute the clipmask of the predefined 144 * formats with hardcoded formulas instead of using these. So modifications 145 * here must be reflected there too. 146 */ 147 148 ASSIGN_4V( draw->plane[0], -1, 0, 0, 1 ); 149 ASSIGN_4V( draw->plane[1], 1, 0, 0, 1 ); 150 ASSIGN_4V( draw->plane[2], 0, -1, 0, 1 ); 151 ASSIGN_4V( draw->plane[3], 0, 1, 0, 1 ); 152 ASSIGN_4V( draw->plane[4], 0, 0, 1, 1 ); /* yes these are correct */ 153 ASSIGN_4V( draw->plane[5], 0, 0, -1, 1 ); /* mesa's a bit wonky */ 154 draw->nr_planes = 6; 155 draw->clip_xy = TRUE; 156 draw->clip_z = TRUE; 157 158 159 draw->reduced_prim = ~0; /* != any of PIPE_PRIM_x */ 160 161 162 if (!draw_pipeline_init( draw )) 163 return FALSE; 164 165 if (!draw_pt_init( draw )) 166 return FALSE; 167 168 if (!draw_vs_init( draw )) 169 return FALSE; 170 171 if (!draw_gs_init( draw )) 172 return FALSE; 173 174 return TRUE; 175} 176 177 178void draw_destroy( struct draw_context *draw ) 179{ 180 struct pipe_context *pipe; 181 int i, j; 182 183 if (!draw) 184 return; 185 186 pipe = draw->pipe; 187 188 /* free any rasterizer CSOs that we may have created. 189 */ 190 for (i = 0; i < 2; i++) { 191 for (j = 0; j < 2; j++) { 192 if (draw->rasterizer_no_cull[i][j]) { 193 pipe->delete_rasterizer_state(pipe, draw->rasterizer_no_cull[i][j]); 194 } 195 } 196 } 197 198 for (i = 0; i < draw->pt.nr_vertex_buffers; i++) { 199 pipe_resource_reference(&draw->pt.vertex_buffer[i].buffer, NULL); 200 } 201 202 /* Not so fast -- we're just borrowing this at the moment. 203 * 204 if (draw->render) 205 draw->render->destroy( draw->render ); 206 */ 207 208 draw_pipeline_destroy( draw ); 209 draw_pt_destroy( draw ); 210 draw_vs_destroy( draw ); 211 draw_gs_destroy( draw ); 212#ifdef HAVE_LLVM 213 if (draw->llvm) 214 draw_llvm_destroy( draw->llvm ); 215 216 if (draw->own_gallivm) 217 gallivm_destroy(draw->own_gallivm); 218#endif 219 220 FREE( draw ); 221} 222 223 224 225void draw_flush( struct draw_context *draw ) 226{ 227 draw_do_flush( draw, DRAW_FLUSH_BACKEND ); 228} 229 230 231/** 232 * Specify the Minimum Resolvable Depth factor for polygon offset. 233 * This factor potentially depends on the number of Z buffer bits, 234 * the rasterization algorithm and the arithmetic performed on Z 235 * values between vertex shading and rasterization. It will vary 236 * from one driver to another. 237 */ 238void draw_set_mrd(struct draw_context *draw, double mrd) 239{ 240 draw->mrd = mrd; 241} 242 243 244static void update_clip_flags( struct draw_context *draw ) 245{ 246 draw->clip_xy = !draw->driver.bypass_clip_xy; 247 draw->guard_band_xy = (!draw->driver.bypass_clip_xy && 248 draw->driver.guard_band_xy); 249 draw->clip_z = (!draw->driver.bypass_clip_z && 250 !draw->depth_clamp); 251 draw->clip_user = (draw->nr_planes > 6); 252} 253 254/** 255 * Register new primitive rasterization/rendering state. 256 * This causes the drawing pipeline to be rebuilt. 257 */ 258void draw_set_rasterizer_state( struct draw_context *draw, 259 const struct pipe_rasterizer_state *raster, 260 void *rast_handle ) 261{ 262 if (!draw->suspend_flushing) { 263 draw_do_flush( draw, DRAW_FLUSH_STATE_CHANGE ); 264 265 draw->rasterizer = raster; 266 draw->rast_handle = rast_handle; 267 268 } 269} 270 271/* With a little more work, llvmpipe will be able to turn this off and 272 * do its own x/y clipping. 273 * 274 * Some hardware can turn off clipping altogether - in particular any 275 * hardware with a TNL unit can do its own clipping, even if it is 276 * relying on the draw module for some other reason. 277 */ 278void draw_set_driver_clipping( struct draw_context *draw, 279 boolean bypass_clip_xy, 280 boolean bypass_clip_z, 281 boolean guard_band_xy) 282{ 283 draw_do_flush( draw, DRAW_FLUSH_STATE_CHANGE ); 284 285 draw->driver.bypass_clip_xy = bypass_clip_xy; 286 draw->driver.bypass_clip_z = bypass_clip_z; 287 draw->driver.guard_band_xy = guard_band_xy; 288 update_clip_flags(draw); 289} 290 291 292/** 293 * Plug in the primitive rendering/rasterization stage (which is the last 294 * stage in the drawing pipeline). 295 * This is provided by the device driver. 296 */ 297void draw_set_rasterize_stage( struct draw_context *draw, 298 struct draw_stage *stage ) 299{ 300 draw_do_flush( draw, DRAW_FLUSH_STATE_CHANGE ); 301 302 draw->pipeline.rasterize = stage; 303} 304 305 306/** 307 * Set the draw module's clipping state. 308 */ 309void draw_set_clip_state( struct draw_context *draw, 310 const struct pipe_clip_state *clip ) 311{ 312 draw_do_flush( draw, DRAW_FLUSH_STATE_CHANGE ); 313 314 assert(clip->nr <= PIPE_MAX_CLIP_PLANES); 315 memcpy(&draw->plane[6], clip->ucp, clip->nr * sizeof(clip->ucp[0])); 316 draw->nr_planes = 6 + clip->nr; 317 draw->depth_clamp = clip->depth_clamp; 318 319 draw->pt.user.planes = (float (*) [DRAW_TOTAL_CLIP_PLANES][4]) &(draw->plane[0]); 320 321 update_clip_flags(draw); 322} 323 324 325/** 326 * Set the draw module's viewport state. 327 */ 328void draw_set_viewport_state( struct draw_context *draw, 329 const struct pipe_viewport_state *viewport ) 330{ 331 draw_do_flush( draw, DRAW_FLUSH_STATE_CHANGE ); 332 draw->viewport = *viewport; /* struct copy */ 333 draw->identity_viewport = (viewport->scale[0] == 1.0f && 334 viewport->scale[1] == 1.0f && 335 viewport->scale[2] == 1.0f && 336 viewport->scale[3] == 1.0f && 337 viewport->translate[0] == 0.0f && 338 viewport->translate[1] == 0.0f && 339 viewport->translate[2] == 0.0f && 340 viewport->translate[3] == 0.0f); 341 342 draw_vs_set_viewport( draw, viewport ); 343} 344 345 346 347void 348draw_set_vertex_buffers(struct draw_context *draw, 349 unsigned count, 350 const struct pipe_vertex_buffer *buffers) 351{ 352 assert(count <= PIPE_MAX_ATTRIBS); 353 354 util_copy_vertex_buffers(draw->pt.vertex_buffer, 355 &draw->pt.nr_vertex_buffers, 356 buffers, count); 357} 358 359 360void 361draw_set_vertex_elements(struct draw_context *draw, 362 unsigned count, 363 const struct pipe_vertex_element *elements) 364{ 365 assert(count <= PIPE_MAX_ATTRIBS); 366 367 memcpy(draw->pt.vertex_element, elements, count * sizeof(elements[0])); 368 draw->pt.nr_vertex_elements = count; 369} 370 371 372/** 373 * Tell drawing context where to find mapped vertex buffers. 374 */ 375void 376draw_set_mapped_vertex_buffer(struct draw_context *draw, 377 unsigned attr, const void *buffer) 378{ 379 draw->pt.user.vbuffer[attr] = buffer; 380} 381 382 383void 384draw_set_mapped_constant_buffer(struct draw_context *draw, 385 unsigned shader_type, 386 unsigned slot, 387 const void *buffer, 388 unsigned size ) 389{ 390 debug_assert(shader_type == PIPE_SHADER_VERTEX || 391 shader_type == PIPE_SHADER_GEOMETRY); 392 debug_assert(slot < PIPE_MAX_CONSTANT_BUFFERS); 393 394 switch (shader_type) { 395 case PIPE_SHADER_VERTEX: 396 draw->pt.user.vs_constants[slot] = buffer; 397 draw->pt.user.vs_constants_size[slot] = size; 398 draw_vs_set_constants(draw, slot, buffer, size); 399 break; 400 case PIPE_SHADER_GEOMETRY: 401 draw->pt.user.gs_constants[slot] = buffer; 402 draw->pt.user.gs_constants_size[slot] = size; 403 draw_gs_set_constants(draw, slot, buffer, size); 404 break; 405 default: 406 assert(0 && "invalid shader type in draw_set_mapped_constant_buffer"); 407 } 408} 409 410 411/** 412 * Tells the draw module to draw points with triangles if their size 413 * is greater than this threshold. 414 */ 415void 416draw_wide_point_threshold(struct draw_context *draw, float threshold) 417{ 418 draw_do_flush( draw, DRAW_FLUSH_STATE_CHANGE ); 419 draw->pipeline.wide_point_threshold = threshold; 420} 421 422 423/** 424 * Should the draw module handle point->quad conversion for drawing sprites? 425 */ 426void 427draw_wide_point_sprites(struct draw_context *draw, boolean draw_sprite) 428{ 429 draw_do_flush( draw, DRAW_FLUSH_STATE_CHANGE ); 430 draw->pipeline.wide_point_sprites = draw_sprite; 431} 432 433 434/** 435 * Tells the draw module to draw lines with triangles if their width 436 * is greater than this threshold. 437 */ 438void 439draw_wide_line_threshold(struct draw_context *draw, float threshold) 440{ 441 draw_do_flush( draw, DRAW_FLUSH_STATE_CHANGE ); 442 draw->pipeline.wide_line_threshold = roundf(threshold); 443} 444 445 446/** 447 * Tells the draw module whether or not to implement line stipple. 448 */ 449void 450draw_enable_line_stipple(struct draw_context *draw, boolean enable) 451{ 452 draw_do_flush( draw, DRAW_FLUSH_STATE_CHANGE ); 453 draw->pipeline.line_stipple = enable; 454} 455 456 457/** 458 * Tells draw module whether to convert points to quads for sprite mode. 459 */ 460void 461draw_enable_point_sprites(struct draw_context *draw, boolean enable) 462{ 463 draw_do_flush( draw, DRAW_FLUSH_STATE_CHANGE ); 464 draw->pipeline.point_sprite = enable; 465} 466 467 468void 469draw_set_force_passthrough( struct draw_context *draw, boolean enable ) 470{ 471 draw_do_flush( draw, DRAW_FLUSH_STATE_CHANGE ); 472 draw->force_passthrough = enable; 473} 474 475 476 477/** 478 * Allocate an extra vertex/geometry shader vertex attribute, if it doesn't 479 * exist already. 480 * 481 * This is used by some of the optional draw module stages such 482 * as wide_point which may need to allocate additional generic/texcoord 483 * attributes. 484 */ 485int 486draw_alloc_extra_vertex_attrib(struct draw_context *draw, 487 uint semantic_name, uint semantic_index) 488{ 489 int slot; 490 uint num_outputs; 491 uint n; 492 493 slot = draw_find_shader_output(draw, semantic_name, semantic_index); 494 if (slot > 0) { 495 return slot; 496 } 497 498 num_outputs = draw_current_shader_outputs(draw); 499 n = draw->extra_shader_outputs.num; 500 501 assert(n < Elements(draw->extra_shader_outputs.semantic_name)); 502 503 draw->extra_shader_outputs.semantic_name[n] = semantic_name; 504 draw->extra_shader_outputs.semantic_index[n] = semantic_index; 505 draw->extra_shader_outputs.slot[n] = num_outputs + n; 506 draw->extra_shader_outputs.num++; 507 508 return draw->extra_shader_outputs.slot[n]; 509} 510 511 512/** 513 * Remove all extra vertex attributes that were allocated with 514 * draw_alloc_extra_vertex_attrib(). 515 */ 516void 517draw_remove_extra_vertex_attribs(struct draw_context *draw) 518{ 519 draw->extra_shader_outputs.num = 0; 520} 521 522 523/** 524 * If a geometry shader is present, return its info, else the vertex shader's 525 * info. 526 */ 527struct tgsi_shader_info * 528draw_get_shader_info(const struct draw_context *draw) 529{ 530 531 if (draw->gs.geometry_shader) { 532 return &draw->gs.geometry_shader->info; 533 } else { 534 return &draw->vs.vertex_shader->info; 535 } 536} 537 538 539/** 540 * Ask the draw module for the location/slot of the given vertex attribute in 541 * a post-transformed vertex. 542 * 543 * With this function, drivers that use the draw module should have no reason 544 * to track the current vertex/geometry shader. 545 * 546 * Note that the draw module may sometimes generate vertices with extra 547 * attributes (such as texcoords for AA lines). The driver can call this 548 * function to find those attributes. 549 * 550 * Zero is returned if the attribute is not found since this is 551 * a don't care / undefined situtation. Returning -1 would be a bit more 552 * work for the drivers. 553 */ 554int 555draw_find_shader_output(const struct draw_context *draw, 556 uint semantic_name, uint semantic_index) 557{ 558 const struct tgsi_shader_info *info = draw_get_shader_info(draw); 559 uint i; 560 561 for (i = 0; i < info->num_outputs; i++) { 562 if (info->output_semantic_name[i] == semantic_name && 563 info->output_semantic_index[i] == semantic_index) 564 return i; 565 } 566 567 /* Search the extra vertex attributes */ 568 for (i = 0; i < draw->extra_shader_outputs.num; i++) { 569 if (draw->extra_shader_outputs.semantic_name[i] == semantic_name && 570 draw->extra_shader_outputs.semantic_index[i] == semantic_index) { 571 return draw->extra_shader_outputs.slot[i]; 572 } 573 } 574 575 return 0; 576} 577 578 579/** 580 * Return total number of the shader outputs. This function is similar to 581 * draw_current_shader_outputs() but this function also counts any extra 582 * vertex/geometry output attributes that may be filled in by some draw 583 * stages (such as AA point, AA line). 584 * 585 * If geometry shader is present, its output will be returned, 586 * if not vertex shader is used. 587 */ 588uint 589draw_num_shader_outputs(const struct draw_context *draw) 590{ 591 const struct tgsi_shader_info *info = draw_get_shader_info(draw); 592 uint count; 593 594 count = info->num_outputs; 595 count += draw->extra_shader_outputs.num; 596 597 return count; 598} 599 600 601/** 602 * Provide TGSI sampler objects for vertex/geometry shaders that use 603 * texture fetches. 604 * This might only be used by software drivers for the time being. 605 */ 606void 607draw_texture_samplers(struct draw_context *draw, 608 uint shader, 609 uint num_samplers, 610 struct tgsi_sampler **samplers) 611{ 612 if (shader == PIPE_SHADER_VERTEX) { 613 draw->vs.num_samplers = num_samplers; 614 draw->vs.samplers = samplers; 615 } else { 616 debug_assert(shader == PIPE_SHADER_GEOMETRY); 617 draw->gs.num_samplers = num_samplers; 618 draw->gs.samplers = samplers; 619 } 620} 621 622 623 624 625void draw_set_render( struct draw_context *draw, 626 struct vbuf_render *render ) 627{ 628 draw->render = render; 629} 630 631 632void 633draw_set_index_buffer(struct draw_context *draw, 634 const struct pipe_index_buffer *ib) 635{ 636 if (ib) 637 memcpy(&draw->pt.index_buffer, ib, sizeof(draw->pt.index_buffer)); 638 else 639 memset(&draw->pt.index_buffer, 0, sizeof(draw->pt.index_buffer)); 640} 641 642 643/** 644 * Tell drawing context where to find mapped index/element buffer. 645 */ 646void 647draw_set_mapped_index_buffer(struct draw_context *draw, 648 const void *elements) 649{ 650 draw->pt.user.elts = elements; 651} 652 653 654/* Revamp me please: 655 */ 656void draw_do_flush( struct draw_context *draw, unsigned flags ) 657{ 658 if (!draw->suspend_flushing) 659 { 660 assert(!draw->flushing); /* catch inadvertant recursion */ 661 662 draw->flushing = TRUE; 663 664 draw_pipeline_flush( draw, flags ); 665 666 draw->reduced_prim = ~0; /* is reduced_prim needed any more? */ 667 668 draw->flushing = FALSE; 669 } 670} 671 672 673/** 674 * Return the number of output attributes produced by the geometry 675 * shader, if present. If no geometry shader, return the number of 676 * outputs from the vertex shader. 677 * \sa draw_num_shader_outputs 678 */ 679uint 680draw_current_shader_outputs(const struct draw_context *draw) 681{ 682 if (draw->gs.geometry_shader) 683 return draw->gs.num_gs_outputs; 684 return draw->vs.num_vs_outputs; 685} 686 687 688/** 689 * Return the index of the shader output which will contain the 690 * vertex position. 691 */ 692uint 693draw_current_shader_position_output(const struct draw_context *draw) 694{ 695 if (draw->gs.geometry_shader) 696 return draw->gs.position_output; 697 return draw->vs.position_output; 698} 699 700 701/** 702 * Return a pointer/handle for a driver/CSO rasterizer object which 703 * disabled culling, stippling, unfilled tris, etc. 704 * This is used by some pipeline stages (such as wide_point, aa_line 705 * and aa_point) which convert points/lines into triangles. In those 706 * cases we don't want to accidentally cull the triangles. 707 * 708 * \param scissor should the rasterizer state enable scissoring? 709 * \param flatshade should the rasterizer state use flat shading? 710 * \return rasterizer CSO handle 711 */ 712void * 713draw_get_rasterizer_no_cull( struct draw_context *draw, 714 boolean scissor, 715 boolean flatshade ) 716{ 717 if (!draw->rasterizer_no_cull[scissor][flatshade]) { 718 /* create now */ 719 struct pipe_context *pipe = draw->pipe; 720 struct pipe_rasterizer_state rast; 721 722 memset(&rast, 0, sizeof(rast)); 723 rast.scissor = scissor; 724 rast.flatshade = flatshade; 725 rast.front_ccw = 1; 726 rast.gl_rasterization_rules = draw->rasterizer->gl_rasterization_rules; 727 728 draw->rasterizer_no_cull[scissor][flatshade] = 729 pipe->create_rasterizer_state(pipe, &rast); 730 } 731 return draw->rasterizer_no_cull[scissor][flatshade]; 732} 733 734void 735draw_set_mapped_so_buffers(struct draw_context *draw, 736 void *buffers[PIPE_MAX_SO_BUFFERS], 737 unsigned num_buffers) 738{ 739 int i; 740 741 for (i = 0; i < num_buffers; ++i) { 742 draw->so.buffers[i] = buffers[i]; 743 } 744 draw->so.num_buffers = num_buffers; 745} 746 747void 748draw_set_so_state(struct draw_context *draw, 749 struct pipe_stream_output_info *state) 750{ 751 memcpy(&draw->so.state, 752 state, 753 sizeof(struct pipe_stream_output_info)); 754} 755 756void 757draw_set_sampler_views(struct draw_context *draw, 758 struct pipe_sampler_view **views, 759 unsigned num) 760{ 761 unsigned i; 762 763 debug_assert(num <= PIPE_MAX_VERTEX_SAMPLERS); 764 765 for (i = 0; i < num; ++i) 766 draw->sampler_views[i] = views[i]; 767 for (i = num; i < PIPE_MAX_VERTEX_SAMPLERS; ++i) 768 draw->sampler_views[i] = NULL; 769 770 draw->num_sampler_views = num; 771} 772 773void 774draw_set_samplers(struct draw_context *draw, 775 struct pipe_sampler_state **samplers, 776 unsigned num) 777{ 778 unsigned i; 779 780 debug_assert(num <= PIPE_MAX_VERTEX_SAMPLERS); 781 782 for (i = 0; i < num; ++i) 783 draw->samplers[i] = samplers[i]; 784 for (i = num; i < PIPE_MAX_VERTEX_SAMPLERS; ++i) 785 draw->samplers[i] = NULL; 786 787 draw->num_samplers = num; 788 789#ifdef HAVE_LLVM 790 if (draw->llvm) 791 draw_llvm_set_sampler_state(draw); 792#endif 793} 794 795void 796draw_set_mapped_texture(struct draw_context *draw, 797 unsigned sampler_idx, 798 uint32_t width, uint32_t height, uint32_t depth, 799 uint32_t first_level, uint32_t last_level, 800 uint32_t row_stride[PIPE_MAX_TEXTURE_LEVELS], 801 uint32_t img_stride[PIPE_MAX_TEXTURE_LEVELS], 802 const void *data[PIPE_MAX_TEXTURE_LEVELS]) 803{ 804#ifdef HAVE_LLVM 805 if(draw->llvm) 806 draw_llvm_set_mapped_texture(draw, 807 sampler_idx, 808 width, height, depth, first_level, last_level, 809 row_stride, img_stride, data); 810#endif 811} 812