draw_context.c revision 4a79545bdfb9e948329a761ef350eb83a3d87496
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]); 158 159 if (!draw_pipeline_init( draw )) 160 return FALSE; 161 162 if (!draw_pt_init( draw )) 163 return FALSE; 164 165 if (!draw_vs_init( draw )) 166 return FALSE; 167 168 if (!draw_gs_init( draw )) 169 return FALSE; 170 171 return TRUE; 172} 173 174 175void draw_destroy( struct draw_context *draw ) 176{ 177 struct pipe_context *pipe; 178 int i, j; 179 180 if (!draw) 181 return; 182 183 pipe = draw->pipe; 184 185 /* free any rasterizer CSOs that we may have created. 186 */ 187 for (i = 0; i < 2; i++) { 188 for (j = 0; j < 2; j++) { 189 if (draw->rasterizer_no_cull[i][j]) { 190 pipe->delete_rasterizer_state(pipe, draw->rasterizer_no_cull[i][j]); 191 } 192 } 193 } 194 195 for (i = 0; i < draw->pt.nr_vertex_buffers; i++) { 196 pipe_resource_reference(&draw->pt.vertex_buffer[i].buffer, NULL); 197 } 198 199 /* Not so fast -- we're just borrowing this at the moment. 200 * 201 if (draw->render) 202 draw->render->destroy( draw->render ); 203 */ 204 205 draw_pipeline_destroy( draw ); 206 draw_pt_destroy( draw ); 207 draw_vs_destroy( draw ); 208 draw_gs_destroy( draw ); 209#ifdef HAVE_LLVM 210 if (draw->llvm) 211 draw_llvm_destroy( draw->llvm ); 212 213 if (draw->own_gallivm) 214 gallivm_destroy(draw->own_gallivm); 215#endif 216 217 FREE( draw ); 218} 219 220 221 222void draw_flush( struct draw_context *draw ) 223{ 224 draw_do_flush( draw, DRAW_FLUSH_BACKEND ); 225} 226 227 228/** 229 * Specify the Minimum Resolvable Depth factor for polygon offset. 230 * This factor potentially depends on the number of Z buffer bits, 231 * the rasterization algorithm and the arithmetic performed on Z 232 * values between vertex shading and rasterization. It will vary 233 * from one driver to another. 234 */ 235void draw_set_mrd(struct draw_context *draw, double mrd) 236{ 237 draw->mrd = mrd; 238} 239 240 241static void update_clip_flags( struct draw_context *draw ) 242{ 243 draw->clip_xy = !draw->driver.bypass_clip_xy; 244 draw->guard_band_xy = (!draw->driver.bypass_clip_xy && 245 draw->driver.guard_band_xy); 246 draw->clip_z = (!draw->driver.bypass_clip_z && 247 draw->rasterizer && draw->rasterizer->depth_clip); 248 draw->clip_user = draw->rasterizer && 249 draw->rasterizer->clip_plane_enable != 0; 250} 251 252/** 253 * Register new primitive rasterization/rendering state. 254 * This causes the drawing pipeline to be rebuilt. 255 */ 256void draw_set_rasterizer_state( struct draw_context *draw, 257 const struct pipe_rasterizer_state *raster, 258 void *rast_handle ) 259{ 260 if (!draw->suspend_flushing) { 261 draw_do_flush( draw, DRAW_FLUSH_STATE_CHANGE ); 262 263 draw->rasterizer = raster; 264 draw->rast_handle = rast_handle; 265 update_clip_flags(draw); 266 } 267} 268 269/* With a little more work, llvmpipe will be able to turn this off and 270 * do its own x/y clipping. 271 * 272 * Some hardware can turn off clipping altogether - in particular any 273 * hardware with a TNL unit can do its own clipping, even if it is 274 * relying on the draw module for some other reason. 275 */ 276void draw_set_driver_clipping( struct draw_context *draw, 277 boolean bypass_clip_xy, 278 boolean bypass_clip_z, 279 boolean guard_band_xy) 280{ 281 draw_do_flush( draw, DRAW_FLUSH_STATE_CHANGE ); 282 283 draw->driver.bypass_clip_xy = bypass_clip_xy; 284 draw->driver.bypass_clip_z = bypass_clip_z; 285 draw->driver.guard_band_xy = guard_band_xy; 286 update_clip_flags(draw); 287} 288 289 290/** 291 * Plug in the primitive rendering/rasterization stage (which is the last 292 * stage in the drawing pipeline). 293 * This is provided by the device driver. 294 */ 295void draw_set_rasterize_stage( struct draw_context *draw, 296 struct draw_stage *stage ) 297{ 298 draw_do_flush( draw, DRAW_FLUSH_STATE_CHANGE ); 299 300 draw->pipeline.rasterize = stage; 301} 302 303 304/** 305 * Set the draw module's clipping state. 306 */ 307void draw_set_clip_state( struct draw_context *draw, 308 const struct pipe_clip_state *clip ) 309{ 310 draw_do_flush( draw, DRAW_FLUSH_STATE_CHANGE ); 311 312 memcpy(&draw->plane[6], clip->ucp, sizeof(clip->ucp)); 313} 314 315 316/** 317 * Set the draw module's viewport state. 318 */ 319void draw_set_viewport_state( struct draw_context *draw, 320 const struct pipe_viewport_state *viewport ) 321{ 322 draw_do_flush( draw, DRAW_FLUSH_STATE_CHANGE ); 323 draw->viewport = *viewport; /* struct copy */ 324 draw->identity_viewport = (viewport->scale[0] == 1.0f && 325 viewport->scale[1] == 1.0f && 326 viewport->scale[2] == 1.0f && 327 viewport->scale[3] == 1.0f && 328 viewport->translate[0] == 0.0f && 329 viewport->translate[1] == 0.0f && 330 viewport->translate[2] == 0.0f && 331 viewport->translate[3] == 0.0f); 332 333 draw_vs_set_viewport( draw, viewport ); 334} 335 336 337 338void 339draw_set_vertex_buffers(struct draw_context *draw, 340 unsigned count, 341 const struct pipe_vertex_buffer *buffers) 342{ 343 assert(count <= PIPE_MAX_ATTRIBS); 344 345 util_copy_vertex_buffers(draw->pt.vertex_buffer, 346 &draw->pt.nr_vertex_buffers, 347 buffers, count); 348} 349 350 351void 352draw_set_vertex_elements(struct draw_context *draw, 353 unsigned count, 354 const struct pipe_vertex_element *elements) 355{ 356 assert(count <= PIPE_MAX_ATTRIBS); 357 358 memcpy(draw->pt.vertex_element, elements, count * sizeof(elements[0])); 359 draw->pt.nr_vertex_elements = count; 360} 361 362 363/** 364 * Tell drawing context where to find mapped vertex buffers. 365 */ 366void 367draw_set_mapped_vertex_buffer(struct draw_context *draw, 368 unsigned attr, const void *buffer) 369{ 370 draw->pt.user.vbuffer[attr] = buffer; 371} 372 373 374void 375draw_set_mapped_constant_buffer(struct draw_context *draw, 376 unsigned shader_type, 377 unsigned slot, 378 const void *buffer, 379 unsigned size ) 380{ 381 debug_assert(shader_type == PIPE_SHADER_VERTEX || 382 shader_type == PIPE_SHADER_GEOMETRY); 383 debug_assert(slot < PIPE_MAX_CONSTANT_BUFFERS); 384 385 switch (shader_type) { 386 case PIPE_SHADER_VERTEX: 387 draw->pt.user.vs_constants[slot] = buffer; 388 draw->pt.user.vs_constants_size[slot] = size; 389 draw_vs_set_constants(draw, slot, buffer, size); 390 break; 391 case PIPE_SHADER_GEOMETRY: 392 draw->pt.user.gs_constants[slot] = buffer; 393 draw->pt.user.gs_constants_size[slot] = size; 394 draw_gs_set_constants(draw, slot, buffer, size); 395 break; 396 default: 397 assert(0 && "invalid shader type in draw_set_mapped_constant_buffer"); 398 } 399} 400 401 402/** 403 * Tells the draw module to draw points with triangles if their size 404 * is greater than this threshold. 405 */ 406void 407draw_wide_point_threshold(struct draw_context *draw, float threshold) 408{ 409 draw_do_flush( draw, DRAW_FLUSH_STATE_CHANGE ); 410 draw->pipeline.wide_point_threshold = threshold; 411} 412 413 414/** 415 * Should the draw module handle point->quad conversion for drawing sprites? 416 */ 417void 418draw_wide_point_sprites(struct draw_context *draw, boolean draw_sprite) 419{ 420 draw_do_flush( draw, DRAW_FLUSH_STATE_CHANGE ); 421 draw->pipeline.wide_point_sprites = draw_sprite; 422} 423 424 425/** 426 * Tells the draw module to draw lines with triangles if their width 427 * is greater than this threshold. 428 */ 429void 430draw_wide_line_threshold(struct draw_context *draw, float threshold) 431{ 432 draw_do_flush( draw, DRAW_FLUSH_STATE_CHANGE ); 433 draw->pipeline.wide_line_threshold = roundf(threshold); 434} 435 436 437/** 438 * Tells the draw module whether or not to implement line stipple. 439 */ 440void 441draw_enable_line_stipple(struct draw_context *draw, boolean enable) 442{ 443 draw_do_flush( draw, DRAW_FLUSH_STATE_CHANGE ); 444 draw->pipeline.line_stipple = enable; 445} 446 447 448/** 449 * Tells draw module whether to convert points to quads for sprite mode. 450 */ 451void 452draw_enable_point_sprites(struct draw_context *draw, boolean enable) 453{ 454 draw_do_flush( draw, DRAW_FLUSH_STATE_CHANGE ); 455 draw->pipeline.point_sprite = enable; 456} 457 458 459void 460draw_set_force_passthrough( struct draw_context *draw, boolean enable ) 461{ 462 draw_do_flush( draw, DRAW_FLUSH_STATE_CHANGE ); 463 draw->force_passthrough = enable; 464} 465 466 467 468/** 469 * Allocate an extra vertex/geometry shader vertex attribute, if it doesn't 470 * exist already. 471 * 472 * This is used by some of the optional draw module stages such 473 * as wide_point which may need to allocate additional generic/texcoord 474 * attributes. 475 */ 476int 477draw_alloc_extra_vertex_attrib(struct draw_context *draw, 478 uint semantic_name, uint semantic_index) 479{ 480 int slot; 481 uint num_outputs; 482 uint n; 483 484 slot = draw_find_shader_output(draw, semantic_name, semantic_index); 485 if (slot > 0) { 486 return slot; 487 } 488 489 num_outputs = draw_current_shader_outputs(draw); 490 n = draw->extra_shader_outputs.num; 491 492 assert(n < Elements(draw->extra_shader_outputs.semantic_name)); 493 494 draw->extra_shader_outputs.semantic_name[n] = semantic_name; 495 draw->extra_shader_outputs.semantic_index[n] = semantic_index; 496 draw->extra_shader_outputs.slot[n] = num_outputs + n; 497 draw->extra_shader_outputs.num++; 498 499 return draw->extra_shader_outputs.slot[n]; 500} 501 502 503/** 504 * Remove all extra vertex attributes that were allocated with 505 * draw_alloc_extra_vertex_attrib(). 506 */ 507void 508draw_remove_extra_vertex_attribs(struct draw_context *draw) 509{ 510 draw->extra_shader_outputs.num = 0; 511} 512 513 514/** 515 * If a geometry shader is present, return its info, else the vertex shader's 516 * info. 517 */ 518struct tgsi_shader_info * 519draw_get_shader_info(const struct draw_context *draw) 520{ 521 522 if (draw->gs.geometry_shader) { 523 return &draw->gs.geometry_shader->info; 524 } else { 525 return &draw->vs.vertex_shader->info; 526 } 527} 528 529 530/** 531 * Ask the draw module for the location/slot of the given vertex attribute in 532 * a post-transformed vertex. 533 * 534 * With this function, drivers that use the draw module should have no reason 535 * to track the current vertex/geometry shader. 536 * 537 * Note that the draw module may sometimes generate vertices with extra 538 * attributes (such as texcoords for AA lines). The driver can call this 539 * function to find those attributes. 540 * 541 * Zero is returned if the attribute is not found since this is 542 * a don't care / undefined situtation. Returning -1 would be a bit more 543 * work for the drivers. 544 */ 545int 546draw_find_shader_output(const struct draw_context *draw, 547 uint semantic_name, uint semantic_index) 548{ 549 const struct tgsi_shader_info *info = draw_get_shader_info(draw); 550 uint i; 551 552 for (i = 0; i < info->num_outputs; i++) { 553 if (info->output_semantic_name[i] == semantic_name && 554 info->output_semantic_index[i] == semantic_index) 555 return i; 556 } 557 558 /* Search the extra vertex attributes */ 559 for (i = 0; i < draw->extra_shader_outputs.num; i++) { 560 if (draw->extra_shader_outputs.semantic_name[i] == semantic_name && 561 draw->extra_shader_outputs.semantic_index[i] == semantic_index) { 562 return draw->extra_shader_outputs.slot[i]; 563 } 564 } 565 566 return 0; 567} 568 569 570/** 571 * Return total number of the shader outputs. This function is similar to 572 * draw_current_shader_outputs() but this function also counts any extra 573 * vertex/geometry output attributes that may be filled in by some draw 574 * stages (such as AA point, AA line). 575 * 576 * If geometry shader is present, its output will be returned, 577 * if not vertex shader is used. 578 */ 579uint 580draw_num_shader_outputs(const struct draw_context *draw) 581{ 582 const struct tgsi_shader_info *info = draw_get_shader_info(draw); 583 uint count; 584 585 count = info->num_outputs; 586 count += draw->extra_shader_outputs.num; 587 588 return count; 589} 590 591 592/** 593 * Provide TGSI sampler objects for vertex/geometry shaders that use 594 * texture fetches. 595 * This might only be used by software drivers for the time being. 596 */ 597void 598draw_texture_samplers(struct draw_context *draw, 599 uint shader, 600 uint num_samplers, 601 struct tgsi_sampler **samplers) 602{ 603 if (shader == PIPE_SHADER_VERTEX) { 604 draw->vs.num_samplers = num_samplers; 605 draw->vs.samplers = samplers; 606 } else { 607 debug_assert(shader == PIPE_SHADER_GEOMETRY); 608 draw->gs.num_samplers = num_samplers; 609 draw->gs.samplers = samplers; 610 } 611} 612 613 614 615 616void draw_set_render( struct draw_context *draw, 617 struct vbuf_render *render ) 618{ 619 draw->render = render; 620} 621 622 623void 624draw_set_index_buffer(struct draw_context *draw, 625 const struct pipe_index_buffer *ib) 626{ 627 if (ib) 628 memcpy(&draw->pt.index_buffer, ib, sizeof(draw->pt.index_buffer)); 629 else 630 memset(&draw->pt.index_buffer, 0, sizeof(draw->pt.index_buffer)); 631} 632 633 634/** 635 * Tell drawing context where to find mapped index/element buffer. 636 */ 637void 638draw_set_mapped_index_buffer(struct draw_context *draw, 639 const void *elements) 640{ 641 draw->pt.user.elts = elements; 642} 643 644 645/* Revamp me please: 646 */ 647void draw_do_flush( struct draw_context *draw, unsigned flags ) 648{ 649 if (!draw->suspend_flushing) 650 { 651 assert(!draw->flushing); /* catch inadvertant recursion */ 652 653 draw->flushing = TRUE; 654 655 draw_pipeline_flush( draw, flags ); 656 657 draw->flushing = FALSE; 658 } 659} 660 661 662/** 663 * Return the number of output attributes produced by the geometry 664 * shader, if present. If no geometry shader, return the number of 665 * outputs from the vertex shader. 666 * \sa draw_num_shader_outputs 667 */ 668uint 669draw_current_shader_outputs(const struct draw_context *draw) 670{ 671 if (draw->gs.geometry_shader) 672 return draw->gs.num_gs_outputs; 673 return draw->vs.num_vs_outputs; 674} 675 676 677/** 678 * Return the index of the shader output which will contain the 679 * vertex position. 680 */ 681uint 682draw_current_shader_position_output(const struct draw_context *draw) 683{ 684 if (draw->gs.geometry_shader) 685 return draw->gs.position_output; 686 return draw->vs.position_output; 687} 688 689 690/** 691 * Return the index of the shader output which will contain the 692 * vertex position. 693 */ 694uint 695draw_current_shader_clipvertex_output(const struct draw_context *draw) 696{ 697 return draw->vs.clipvertex_output; 698} 699 700uint 701draw_current_shader_clipdistance_output(const struct draw_context *draw, int index) 702{ 703 return draw->vs.clipdistance_output[index]; 704} 705 706/** 707 * Return a pointer/handle for a driver/CSO rasterizer object which 708 * disabled culling, stippling, unfilled tris, etc. 709 * This is used by some pipeline stages (such as wide_point, aa_line 710 * and aa_point) which convert points/lines into triangles. In those 711 * cases we don't want to accidentally cull the triangles. 712 * 713 * \param scissor should the rasterizer state enable scissoring? 714 * \param flatshade should the rasterizer state use flat shading? 715 * \return rasterizer CSO handle 716 */ 717void * 718draw_get_rasterizer_no_cull( struct draw_context *draw, 719 boolean scissor, 720 boolean flatshade ) 721{ 722 if (!draw->rasterizer_no_cull[scissor][flatshade]) { 723 /* create now */ 724 struct pipe_context *pipe = draw->pipe; 725 struct pipe_rasterizer_state rast; 726 727 memset(&rast, 0, sizeof(rast)); 728 rast.scissor = scissor; 729 rast.flatshade = flatshade; 730 rast.front_ccw = 1; 731 rast.gl_rasterization_rules = draw->rasterizer->gl_rasterization_rules; 732 733 draw->rasterizer_no_cull[scissor][flatshade] = 734 pipe->create_rasterizer_state(pipe, &rast); 735 } 736 return draw->rasterizer_no_cull[scissor][flatshade]; 737} 738 739void 740draw_set_mapped_so_targets(struct draw_context *draw, 741 int num_targets, 742 struct draw_so_target *targets[PIPE_MAX_SO_BUFFERS]) 743{ 744 int i; 745 746 for (i = 0; i < num_targets; i++) 747 draw->so.targets[i] = targets[i]; 748 for (i = num_targets; i < PIPE_MAX_SO_BUFFERS; i++) 749 draw->so.targets[i] = NULL; 750 751 draw->so.num_targets = num_targets; 752} 753 754void 755draw_set_mapped_so_buffers(struct draw_context *draw, 756 void *buffers[PIPE_MAX_SO_BUFFERS], 757 unsigned num_buffers) 758{ 759} 760 761void 762draw_set_so_state(struct draw_context *draw, 763 struct pipe_stream_output_info *state) 764{ 765 memcpy(&draw->so.state, 766 state, 767 sizeof(struct pipe_stream_output_info)); 768} 769 770void 771draw_set_sampler_views(struct draw_context *draw, 772 struct pipe_sampler_view **views, 773 unsigned num) 774{ 775 unsigned i; 776 777 debug_assert(num <= PIPE_MAX_VERTEX_SAMPLERS); 778 779 for (i = 0; i < num; ++i) 780 draw->sampler_views[i] = views[i]; 781 for (i = num; i < PIPE_MAX_VERTEX_SAMPLERS; ++i) 782 draw->sampler_views[i] = NULL; 783 784 draw->num_sampler_views = num; 785} 786 787void 788draw_set_samplers(struct draw_context *draw, 789 struct pipe_sampler_state **samplers, 790 unsigned num) 791{ 792 unsigned i; 793 794 debug_assert(num <= PIPE_MAX_VERTEX_SAMPLERS); 795 796 for (i = 0; i < num; ++i) 797 draw->samplers[i] = samplers[i]; 798 for (i = num; i < PIPE_MAX_VERTEX_SAMPLERS; ++i) 799 draw->samplers[i] = NULL; 800 801 draw->num_samplers = num; 802 803#ifdef HAVE_LLVM 804 if (draw->llvm) 805 draw_llvm_set_sampler_state(draw); 806#endif 807} 808 809void 810draw_set_mapped_texture(struct draw_context *draw, 811 unsigned sampler_idx, 812 uint32_t width, uint32_t height, uint32_t depth, 813 uint32_t first_level, uint32_t last_level, 814 uint32_t row_stride[PIPE_MAX_TEXTURE_LEVELS], 815 uint32_t img_stride[PIPE_MAX_TEXTURE_LEVELS], 816 const void *data[PIPE_MAX_TEXTURE_LEVELS]) 817{ 818#ifdef HAVE_LLVM 819 if(draw->llvm) 820 draw_llvm_set_mapped_texture(draw, 821 sampler_idx, 822 width, height, depth, first_level, last_level, 823 row_stride, img_stride, data); 824#endif 825} 826