draw_context.c revision ec8cbd79ac4065111365a6720c9564de56855cc8
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 * 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->clip_xy = TRUE; 155 draw->clip_z = TRUE; 156 157 draw->pt.user.planes = (float (*) [DRAW_TOTAL_CLIP_PLANES][4]) &(draw->plane[0]); 158 draw->reduced_prim = ~0; /* != any of PIPE_PRIM_x */ 159 160 161 if (!draw_pipeline_init( draw )) 162 return FALSE; 163 164 if (!draw_pt_init( draw )) 165 return FALSE; 166 167 if (!draw_vs_init( draw )) 168 return FALSE; 169 170 if (!draw_gs_init( draw )) 171 return FALSE; 172 173 return TRUE; 174} 175 176 177void draw_destroy( struct draw_context *draw ) 178{ 179 struct pipe_context *pipe; 180 int i, j; 181 182 if (!draw) 183 return; 184 185 pipe = draw->pipe; 186 187 /* free any rasterizer CSOs that we may have created. 188 */ 189 for (i = 0; i < 2; i++) { 190 for (j = 0; j < 2; j++) { 191 if (draw->rasterizer_no_cull[i][j]) { 192 pipe->delete_rasterizer_state(pipe, draw->rasterizer_no_cull[i][j]); 193 } 194 } 195 } 196 197 for (i = 0; i < draw->pt.nr_vertex_buffers; i++) { 198 pipe_resource_reference(&draw->pt.vertex_buffer[i].buffer, NULL); 199 } 200 201 /* Not so fast -- we're just borrowing this at the moment. 202 * 203 if (draw->render) 204 draw->render->destroy( draw->render ); 205 */ 206 207 draw_pipeline_destroy( draw ); 208 draw_pt_destroy( draw ); 209 draw_vs_destroy( draw ); 210 draw_gs_destroy( draw ); 211#ifdef HAVE_LLVM 212 if (draw->llvm) 213 draw_llvm_destroy( draw->llvm ); 214 215 if (draw->own_gallivm) 216 gallivm_destroy(draw->own_gallivm); 217#endif 218 219 FREE( draw ); 220} 221 222 223 224void draw_flush( struct draw_context *draw ) 225{ 226 draw_do_flush( draw, DRAW_FLUSH_BACKEND ); 227} 228 229 230/** 231 * Specify the Minimum Resolvable Depth factor for polygon offset. 232 * This factor potentially depends on the number of Z buffer bits, 233 * the rasterization algorithm and the arithmetic performed on Z 234 * values between vertex shading and rasterization. It will vary 235 * from one driver to another. 236 */ 237void draw_set_mrd(struct draw_context *draw, double mrd) 238{ 239 draw->mrd = mrd; 240} 241 242 243static void update_clip_flags( struct draw_context *draw ) 244{ 245 draw->clip_xy = !draw->driver.bypass_clip_xy; 246 draw->guard_band_xy = (!draw->driver.bypass_clip_xy && 247 draw->driver.guard_band_xy); 248 draw->clip_z = (!draw->driver.bypass_clip_z && 249 draw->rasterizer && draw->rasterizer->depth_clip); 250 draw->clip_user = draw->rasterizer && 251 draw->rasterizer->clip_plane_enable != 0; 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 update_clip_flags(draw); 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 memcpy(&draw->plane[6], clip->ucp, sizeof(clip->ucp)); 315} 316 317 318/** 319 * Set the draw module's viewport state. 320 */ 321void draw_set_viewport_state( struct draw_context *draw, 322 const struct pipe_viewport_state *viewport ) 323{ 324 draw_do_flush( draw, DRAW_FLUSH_STATE_CHANGE ); 325 draw->viewport = *viewport; /* struct copy */ 326 draw->identity_viewport = (viewport->scale[0] == 1.0f && 327 viewport->scale[1] == 1.0f && 328 viewport->scale[2] == 1.0f && 329 viewport->scale[3] == 1.0f && 330 viewport->translate[0] == 0.0f && 331 viewport->translate[1] == 0.0f && 332 viewport->translate[2] == 0.0f && 333 viewport->translate[3] == 0.0f); 334 335 draw_vs_set_viewport( draw, viewport ); 336} 337 338 339 340void 341draw_set_vertex_buffers(struct draw_context *draw, 342 unsigned count, 343 const struct pipe_vertex_buffer *buffers) 344{ 345 assert(count <= PIPE_MAX_ATTRIBS); 346 347 util_copy_vertex_buffers(draw->pt.vertex_buffer, 348 &draw->pt.nr_vertex_buffers, 349 buffers, count); 350} 351 352 353void 354draw_set_vertex_elements(struct draw_context *draw, 355 unsigned count, 356 const struct pipe_vertex_element *elements) 357{ 358 assert(count <= PIPE_MAX_ATTRIBS); 359 360 memcpy(draw->pt.vertex_element, elements, count * sizeof(elements[0])); 361 draw->pt.nr_vertex_elements = count; 362} 363 364 365/** 366 * Tell drawing context where to find mapped vertex buffers. 367 */ 368void 369draw_set_mapped_vertex_buffer(struct draw_context *draw, 370 unsigned attr, const void *buffer) 371{ 372 draw->pt.user.vbuffer[attr] = buffer; 373} 374 375 376void 377draw_set_mapped_constant_buffer(struct draw_context *draw, 378 unsigned shader_type, 379 unsigned slot, 380 const void *buffer, 381 unsigned size ) 382{ 383 debug_assert(shader_type == PIPE_SHADER_VERTEX || 384 shader_type == PIPE_SHADER_GEOMETRY); 385 debug_assert(slot < PIPE_MAX_CONSTANT_BUFFERS); 386 387 switch (shader_type) { 388 case PIPE_SHADER_VERTEX: 389 draw->pt.user.vs_constants[slot] = buffer; 390 draw->pt.user.vs_constants_size[slot] = size; 391 draw_vs_set_constants(draw, slot, buffer, size); 392 break; 393 case PIPE_SHADER_GEOMETRY: 394 draw->pt.user.gs_constants[slot] = buffer; 395 draw->pt.user.gs_constants_size[slot] = size; 396 draw_gs_set_constants(draw, slot, buffer, size); 397 break; 398 default: 399 assert(0 && "invalid shader type in draw_set_mapped_constant_buffer"); 400 } 401} 402 403 404/** 405 * Tells the draw module to draw points with triangles if their size 406 * is greater than this threshold. 407 */ 408void 409draw_wide_point_threshold(struct draw_context *draw, float threshold) 410{ 411 draw_do_flush( draw, DRAW_FLUSH_STATE_CHANGE ); 412 draw->pipeline.wide_point_threshold = threshold; 413} 414 415 416/** 417 * Should the draw module handle point->quad conversion for drawing sprites? 418 */ 419void 420draw_wide_point_sprites(struct draw_context *draw, boolean draw_sprite) 421{ 422 draw_do_flush( draw, DRAW_FLUSH_STATE_CHANGE ); 423 draw->pipeline.wide_point_sprites = draw_sprite; 424} 425 426 427/** 428 * Tells the draw module to draw lines with triangles if their width 429 * is greater than this threshold. 430 */ 431void 432draw_wide_line_threshold(struct draw_context *draw, float threshold) 433{ 434 draw_do_flush( draw, DRAW_FLUSH_STATE_CHANGE ); 435 draw->pipeline.wide_line_threshold = roundf(threshold); 436} 437 438 439/** 440 * Tells the draw module whether or not to implement line stipple. 441 */ 442void 443draw_enable_line_stipple(struct draw_context *draw, boolean enable) 444{ 445 draw_do_flush( draw, DRAW_FLUSH_STATE_CHANGE ); 446 draw->pipeline.line_stipple = enable; 447} 448 449 450/** 451 * Tells draw module whether to convert points to quads for sprite mode. 452 */ 453void 454draw_enable_point_sprites(struct draw_context *draw, boolean enable) 455{ 456 draw_do_flush( draw, DRAW_FLUSH_STATE_CHANGE ); 457 draw->pipeline.point_sprite = enable; 458} 459 460 461void 462draw_set_force_passthrough( struct draw_context *draw, boolean enable ) 463{ 464 draw_do_flush( draw, DRAW_FLUSH_STATE_CHANGE ); 465 draw->force_passthrough = enable; 466} 467 468 469 470/** 471 * Allocate an extra vertex/geometry shader vertex attribute, if it doesn't 472 * exist already. 473 * 474 * This is used by some of the optional draw module stages such 475 * as wide_point which may need to allocate additional generic/texcoord 476 * attributes. 477 */ 478int 479draw_alloc_extra_vertex_attrib(struct draw_context *draw, 480 uint semantic_name, uint semantic_index) 481{ 482 int slot; 483 uint num_outputs; 484 uint n; 485 486 slot = draw_find_shader_output(draw, semantic_name, semantic_index); 487 if (slot > 0) { 488 return slot; 489 } 490 491 num_outputs = draw_current_shader_outputs(draw); 492 n = draw->extra_shader_outputs.num; 493 494 assert(n < Elements(draw->extra_shader_outputs.semantic_name)); 495 496 draw->extra_shader_outputs.semantic_name[n] = semantic_name; 497 draw->extra_shader_outputs.semantic_index[n] = semantic_index; 498 draw->extra_shader_outputs.slot[n] = num_outputs + n; 499 draw->extra_shader_outputs.num++; 500 501 return draw->extra_shader_outputs.slot[n]; 502} 503 504 505/** 506 * Remove all extra vertex attributes that were allocated with 507 * draw_alloc_extra_vertex_attrib(). 508 */ 509void 510draw_remove_extra_vertex_attribs(struct draw_context *draw) 511{ 512 draw->extra_shader_outputs.num = 0; 513} 514 515 516/** 517 * If a geometry shader is present, return its info, else the vertex shader's 518 * info. 519 */ 520struct tgsi_shader_info * 521draw_get_shader_info(const struct draw_context *draw) 522{ 523 524 if (draw->gs.geometry_shader) { 525 return &draw->gs.geometry_shader->info; 526 } else { 527 return &draw->vs.vertex_shader->info; 528 } 529} 530 531 532/** 533 * Ask the draw module for the location/slot of the given vertex attribute in 534 * a post-transformed vertex. 535 * 536 * With this function, drivers that use the draw module should have no reason 537 * to track the current vertex/geometry shader. 538 * 539 * Note that the draw module may sometimes generate vertices with extra 540 * attributes (such as texcoords for AA lines). The driver can call this 541 * function to find those attributes. 542 * 543 * Zero is returned if the attribute is not found since this is 544 * a don't care / undefined situtation. Returning -1 would be a bit more 545 * work for the drivers. 546 */ 547int 548draw_find_shader_output(const struct draw_context *draw, 549 uint semantic_name, uint semantic_index) 550{ 551 const struct tgsi_shader_info *info = draw_get_shader_info(draw); 552 uint i; 553 554 for (i = 0; i < info->num_outputs; i++) { 555 if (info->output_semantic_name[i] == semantic_name && 556 info->output_semantic_index[i] == semantic_index) 557 return i; 558 } 559 560 /* Search the extra vertex attributes */ 561 for (i = 0; i < draw->extra_shader_outputs.num; i++) { 562 if (draw->extra_shader_outputs.semantic_name[i] == semantic_name && 563 draw->extra_shader_outputs.semantic_index[i] == semantic_index) { 564 return draw->extra_shader_outputs.slot[i]; 565 } 566 } 567 568 return 0; 569} 570 571 572/** 573 * Return total number of the shader outputs. This function is similar to 574 * draw_current_shader_outputs() but this function also counts any extra 575 * vertex/geometry output attributes that may be filled in by some draw 576 * stages (such as AA point, AA line). 577 * 578 * If geometry shader is present, its output will be returned, 579 * if not vertex shader is used. 580 */ 581uint 582draw_num_shader_outputs(const struct draw_context *draw) 583{ 584 const struct tgsi_shader_info *info = draw_get_shader_info(draw); 585 uint count; 586 587 count = info->num_outputs; 588 count += draw->extra_shader_outputs.num; 589 590 return count; 591} 592 593 594/** 595 * Provide TGSI sampler objects for vertex/geometry shaders that use 596 * texture fetches. 597 * This might only be used by software drivers for the time being. 598 */ 599void 600draw_texture_samplers(struct draw_context *draw, 601 uint shader, 602 uint num_samplers, 603 struct tgsi_sampler **samplers) 604{ 605 if (shader == PIPE_SHADER_VERTEX) { 606 draw->vs.num_samplers = num_samplers; 607 draw->vs.samplers = samplers; 608 } else { 609 debug_assert(shader == PIPE_SHADER_GEOMETRY); 610 draw->gs.num_samplers = num_samplers; 611 draw->gs.samplers = samplers; 612 } 613} 614 615 616 617 618void draw_set_render( struct draw_context *draw, 619 struct vbuf_render *render ) 620{ 621 draw->render = render; 622} 623 624 625void 626draw_set_index_buffer(struct draw_context *draw, 627 const struct pipe_index_buffer *ib) 628{ 629 if (ib) 630 memcpy(&draw->pt.index_buffer, ib, sizeof(draw->pt.index_buffer)); 631 else 632 memset(&draw->pt.index_buffer, 0, sizeof(draw->pt.index_buffer)); 633} 634 635 636/** 637 * Tell drawing context where to find mapped index/element buffer. 638 */ 639void 640draw_set_mapped_index_buffer(struct draw_context *draw, 641 const void *elements) 642{ 643 draw->pt.user.elts = elements; 644} 645 646 647/* Revamp me please: 648 */ 649void draw_do_flush( struct draw_context *draw, unsigned flags ) 650{ 651 if (!draw->suspend_flushing) 652 { 653 assert(!draw->flushing); /* catch inadvertant recursion */ 654 655 draw->flushing = TRUE; 656 657 draw_pipeline_flush( draw, flags ); 658 659 draw->reduced_prim = ~0; /* is reduced_prim needed any more? */ 660 661 draw->flushing = FALSE; 662 } 663} 664 665 666/** 667 * Return the number of output attributes produced by the geometry 668 * shader, if present. If no geometry shader, return the number of 669 * outputs from the vertex shader. 670 * \sa draw_num_shader_outputs 671 */ 672uint 673draw_current_shader_outputs(const struct draw_context *draw) 674{ 675 if (draw->gs.geometry_shader) 676 return draw->gs.num_gs_outputs; 677 return draw->vs.num_vs_outputs; 678} 679 680 681/** 682 * Return the index of the shader output which will contain the 683 * vertex position. 684 */ 685uint 686draw_current_shader_position_output(const struct draw_context *draw) 687{ 688 if (draw->gs.geometry_shader) 689 return draw->gs.position_output; 690 return draw->vs.position_output; 691} 692 693 694/** 695 * Return a pointer/handle for a driver/CSO rasterizer object which 696 * disabled culling, stippling, unfilled tris, etc. 697 * This is used by some pipeline stages (such as wide_point, aa_line 698 * and aa_point) which convert points/lines into triangles. In those 699 * cases we don't want to accidentally cull the triangles. 700 * 701 * \param scissor should the rasterizer state enable scissoring? 702 * \param flatshade should the rasterizer state use flat shading? 703 * \return rasterizer CSO handle 704 */ 705void * 706draw_get_rasterizer_no_cull( struct draw_context *draw, 707 boolean scissor, 708 boolean flatshade ) 709{ 710 if (!draw->rasterizer_no_cull[scissor][flatshade]) { 711 /* create now */ 712 struct pipe_context *pipe = draw->pipe; 713 struct pipe_rasterizer_state rast; 714 715 memset(&rast, 0, sizeof(rast)); 716 rast.scissor = scissor; 717 rast.flatshade = flatshade; 718 rast.front_ccw = 1; 719 rast.gl_rasterization_rules = draw->rasterizer->gl_rasterization_rules; 720 721 draw->rasterizer_no_cull[scissor][flatshade] = 722 pipe->create_rasterizer_state(pipe, &rast); 723 } 724 return draw->rasterizer_no_cull[scissor][flatshade]; 725} 726 727void 728draw_set_mapped_so_targets(struct draw_context *draw, 729 int num_targets, 730 struct draw_so_target *targets[PIPE_MAX_SO_BUFFERS]) 731{ 732 int i; 733 734 for (i = 0; i < num_targets; i++) 735 draw->so.targets[i] = targets[i]; 736 for (i = num_targets; i < PIPE_MAX_SO_BUFFERS; i++) 737 draw->so.targets[i] = NULL; 738 739 draw->so.num_targets = num_targets; 740} 741 742void 743draw_set_mapped_so_buffers(struct draw_context *draw, 744 void *buffers[PIPE_MAX_SO_BUFFERS], 745 unsigned num_buffers) 746{ 747} 748 749void 750draw_set_so_state(struct draw_context *draw, 751 struct pipe_stream_output_info *state) 752{ 753 memcpy(&draw->so.state, 754 state, 755 sizeof(struct pipe_stream_output_info)); 756} 757 758void 759draw_set_sampler_views(struct draw_context *draw, 760 struct pipe_sampler_view **views, 761 unsigned num) 762{ 763 unsigned i; 764 765 debug_assert(num <= PIPE_MAX_VERTEX_SAMPLERS); 766 767 for (i = 0; i < num; ++i) 768 draw->sampler_views[i] = views[i]; 769 for (i = num; i < PIPE_MAX_VERTEX_SAMPLERS; ++i) 770 draw->sampler_views[i] = NULL; 771 772 draw->num_sampler_views = num; 773} 774 775void 776draw_set_samplers(struct draw_context *draw, 777 struct pipe_sampler_state **samplers, 778 unsigned num) 779{ 780 unsigned i; 781 782 debug_assert(num <= PIPE_MAX_VERTEX_SAMPLERS); 783 784 for (i = 0; i < num; ++i) 785 draw->samplers[i] = samplers[i]; 786 for (i = num; i < PIPE_MAX_VERTEX_SAMPLERS; ++i) 787 draw->samplers[i] = NULL; 788 789 draw->num_samplers = num; 790 791#ifdef HAVE_LLVM 792 if (draw->llvm) 793 draw_llvm_set_sampler_state(draw); 794#endif 795} 796 797void 798draw_set_mapped_texture(struct draw_context *draw, 799 unsigned sampler_idx, 800 uint32_t width, uint32_t height, uint32_t depth, 801 uint32_t first_level, uint32_t last_level, 802 uint32_t row_stride[PIPE_MAX_TEXTURE_LEVELS], 803 uint32_t img_stride[PIPE_MAX_TEXTURE_LEVELS], 804 const void *data[PIPE_MAX_TEXTURE_LEVELS]) 805{ 806#ifdef HAVE_LLVM 807 if(draw->llvm) 808 draw_llvm_set_mapped_texture(draw, 809 sampler_idx, 810 width, height, depth, first_level, last_level, 811 row_stride, img_stride, data); 812#endif 813} 814