draw_llvm.c revision efc82aef35a2aac5d2ed9774f6d28f2626796416
1/************************************************************************** 2 * 3 * Copyright 2010 VMware, Inc. 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 VMWARE 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#include "draw_llvm.h" 29 30#include "draw_context.h" 31#include "draw_vs.h" 32 33#include "gallivm/lp_bld_arit.h" 34#include "gallivm/lp_bld_logic.h" 35#include "gallivm/lp_bld_const.h" 36#include "gallivm/lp_bld_swizzle.h" 37#include "gallivm/lp_bld_struct.h" 38#include "gallivm/lp_bld_type.h" 39#include "gallivm/lp_bld_flow.h" 40#include "gallivm/lp_bld_debug.h" 41#include "gallivm/lp_bld_tgsi.h" 42#include "gallivm/lp_bld_printf.h" 43#include "gallivm/lp_bld_intr.h" 44#include "gallivm/lp_bld_init.h" 45#include "gallivm/lp_bld_type.h" 46 47#include "tgsi/tgsi_exec.h" 48#include "tgsi/tgsi_dump.h" 49 50#include "util/u_math.h" 51#include "util/u_pointer.h" 52#include "util/u_string.h" 53#include "util/u_simple_list.h" 54 55 56#define DEBUG_STORE 0 57 58 59/** 60 * This function is called by the gallivm "garbage collector" when 61 * the LLVM global data structures are freed. We must free all LLVM-related 62 * data. Specifically, all JIT'd shader variants. 63 */ 64static void 65draw_llvm_garbage_collect_callback(void *cb_data) 66{ 67 struct draw_llvm *llvm = (struct draw_llvm *) cb_data; 68 struct draw_llvm_variant_list_item *li; 69 70 /* free all shader variants */ 71 li = first_elem(&llvm->vs_variants_list); 72 while (!at_end(&llvm->vs_variants_list, li)) { 73 struct draw_llvm_variant_list_item *next = next_elem(li); 74 draw_llvm_destroy_variant(li->base); 75 li = next; 76 } 77 78 /* Null-out these pointers so they get remade next time they're needed. 79 * See the accessor functions below. 80 */ 81 llvm->context_ptr_type = NULL; 82 llvm->buffer_ptr_type = NULL; 83 llvm->vb_ptr_type = NULL; 84 llvm->vertex_header_ptr_type = NULL; 85} 86 87 88static void 89draw_llvm_generate(struct draw_llvm *llvm, struct draw_llvm_variant *var); 90 91static void 92draw_llvm_generate_elts(struct draw_llvm *llvm, struct draw_llvm_variant *var); 93 94 95/** 96 * Create LLVM type for struct draw_jit_texture 97 */ 98static LLVMTypeRef 99create_jit_texture_type(struct gallivm_state *gallivm) 100{ 101 LLVMTargetDataRef target = gallivm->target; 102 LLVMTypeRef texture_type; 103 LLVMTypeRef elem_types[DRAW_JIT_TEXTURE_NUM_FIELDS]; 104 LLVMTypeRef int32_type = LLVMInt32TypeInContext(gallivm->context); 105 106 elem_types[DRAW_JIT_TEXTURE_WIDTH] = 107 elem_types[DRAW_JIT_TEXTURE_HEIGHT] = 108 elem_types[DRAW_JIT_TEXTURE_DEPTH] = 109 elem_types[DRAW_JIT_TEXTURE_LAST_LEVEL] = int32_type; 110 elem_types[DRAW_JIT_TEXTURE_ROW_STRIDE] = 111 elem_types[DRAW_JIT_TEXTURE_IMG_STRIDE] = 112 LLVMArrayType(int32_type, PIPE_MAX_TEXTURE_LEVELS); 113 elem_types[DRAW_JIT_TEXTURE_DATA] = 114 LLVMArrayType(LLVMPointerType(LLVMInt8TypeInContext(gallivm->context), 0), 115 PIPE_MAX_TEXTURE_LEVELS); 116 elem_types[DRAW_JIT_TEXTURE_MIN_LOD] = 117 elem_types[DRAW_JIT_TEXTURE_MAX_LOD] = 118 elem_types[DRAW_JIT_TEXTURE_LOD_BIAS] = LLVMFloatTypeInContext(gallivm->context); 119 elem_types[DRAW_JIT_TEXTURE_BORDER_COLOR] = 120 LLVMArrayType(LLVMFloatTypeInContext(gallivm->context), 4); 121 122 texture_type = LLVMStructTypeInContext(gallivm->context, elem_types, 123 Elements(elem_types), 0); 124 125 /* Make sure the target's struct layout cache doesn't return 126 * stale/invalid data. 127 */ 128 LLVMInvalidateStructLayout(gallivm->target, texture_type); 129 130 LP_CHECK_MEMBER_OFFSET(struct draw_jit_texture, width, 131 target, texture_type, 132 DRAW_JIT_TEXTURE_WIDTH); 133 LP_CHECK_MEMBER_OFFSET(struct draw_jit_texture, height, 134 target, texture_type, 135 DRAW_JIT_TEXTURE_HEIGHT); 136 LP_CHECK_MEMBER_OFFSET(struct draw_jit_texture, depth, 137 target, texture_type, 138 DRAW_JIT_TEXTURE_DEPTH); 139 LP_CHECK_MEMBER_OFFSET(struct draw_jit_texture, last_level, 140 target, texture_type, 141 DRAW_JIT_TEXTURE_LAST_LEVEL); 142 LP_CHECK_MEMBER_OFFSET(struct draw_jit_texture, row_stride, 143 target, texture_type, 144 DRAW_JIT_TEXTURE_ROW_STRIDE); 145 LP_CHECK_MEMBER_OFFSET(struct draw_jit_texture, img_stride, 146 target, texture_type, 147 DRAW_JIT_TEXTURE_IMG_STRIDE); 148 LP_CHECK_MEMBER_OFFSET(struct draw_jit_texture, data, 149 target, texture_type, 150 DRAW_JIT_TEXTURE_DATA); 151 LP_CHECK_MEMBER_OFFSET(struct draw_jit_texture, min_lod, 152 target, texture_type, 153 DRAW_JIT_TEXTURE_MIN_LOD); 154 LP_CHECK_MEMBER_OFFSET(struct draw_jit_texture, max_lod, 155 target, texture_type, 156 DRAW_JIT_TEXTURE_MAX_LOD); 157 LP_CHECK_MEMBER_OFFSET(struct draw_jit_texture, lod_bias, 158 target, texture_type, 159 DRAW_JIT_TEXTURE_LOD_BIAS); 160 LP_CHECK_MEMBER_OFFSET(struct draw_jit_texture, border_color, 161 target, texture_type, 162 DRAW_JIT_TEXTURE_BORDER_COLOR); 163 164 LP_CHECK_STRUCT_SIZE(struct draw_jit_texture, target, texture_type); 165 166 return texture_type; 167} 168 169 170/** 171 * Create LLVM type for struct draw_jit_texture 172 */ 173static LLVMTypeRef 174create_jit_context_type(struct gallivm_state *gallivm, 175 LLVMTypeRef texture_type) 176{ 177 LLVMTargetDataRef target = gallivm->target; 178 LLVMTypeRef float_type = LLVMFloatTypeInContext(gallivm->context); 179 LLVMTypeRef elem_types[5]; 180 LLVMTypeRef context_type; 181 182 elem_types[0] = LLVMPointerType(float_type, 0); /* vs_constants */ 183 elem_types[1] = LLVMPointerType(float_type, 0); /* gs_constants */ 184 elem_types[2] = LLVMPointerType(LLVMArrayType(LLVMArrayType(float_type, 4), 12), 0); /* planes */ 185 elem_types[3] = LLVMPointerType(float_type, 0); /* viewport */ 186 elem_types[4] = LLVMArrayType(texture_type, 187 PIPE_MAX_VERTEX_SAMPLERS); /* textures */ 188 189 context_type = LLVMStructTypeInContext(gallivm->context, elem_types, 190 Elements(elem_types), 0); 191 192 LLVMInvalidateStructLayout(gallivm->target, context_type); 193 194 LP_CHECK_MEMBER_OFFSET(struct draw_jit_context, vs_constants, 195 target, context_type, 0); 196 LP_CHECK_MEMBER_OFFSET(struct draw_jit_context, gs_constants, 197 target, context_type, 1); 198 LP_CHECK_MEMBER_OFFSET(struct draw_jit_context, planes, 199 target, context_type, 2); 200 LP_CHECK_MEMBER_OFFSET(struct draw_jit_context, textures, 201 target, context_type, 202 DRAW_JIT_CTX_TEXTURES); 203 LP_CHECK_STRUCT_SIZE(struct draw_jit_context, 204 target, context_type); 205 206 return context_type; 207} 208 209 210/** 211 * Create LLVM type for struct pipe_vertex_buffer 212 */ 213static LLVMTypeRef 214create_jit_vertex_buffer_type(struct gallivm_state *gallivm) 215{ 216 LLVMTargetDataRef target = gallivm->target; 217 LLVMTypeRef elem_types[4]; 218 LLVMTypeRef vb_type; 219 220 elem_types[0] = 221 elem_types[1] = 222 elem_types[2] = LLVMInt32TypeInContext(gallivm->context); 223 elem_types[3] = LLVMPointerType(LLVMOpaqueTypeInContext(gallivm->context), 0); /* vs_constants */ 224 225 vb_type = LLVMStructTypeInContext(gallivm->context, elem_types, 226 Elements(elem_types), 0); 227 228 LLVMInvalidateStructLayout(gallivm->target, vb_type); 229 230 LP_CHECK_MEMBER_OFFSET(struct pipe_vertex_buffer, stride, 231 target, vb_type, 0); 232 LP_CHECK_MEMBER_OFFSET(struct pipe_vertex_buffer, buffer_offset, 233 target, vb_type, 2); 234 235 LP_CHECK_STRUCT_SIZE(struct pipe_vertex_buffer, target, vb_type); 236 237 return vb_type; 238} 239 240 241/** 242 * Create LLVM type for struct vertex_header; 243 */ 244static LLVMTypeRef 245create_jit_vertex_header(struct gallivm_state *gallivm, int data_elems) 246{ 247 LLVMTargetDataRef target = gallivm->target; 248 LLVMTypeRef elem_types[3]; 249 LLVMTypeRef vertex_header; 250 char struct_name[24]; 251 252 util_snprintf(struct_name, 23, "vertex_header%d", data_elems); 253 254 elem_types[0] = LLVMIntTypeInContext(gallivm->context, 32); 255 elem_types[1] = LLVMArrayType(LLVMFloatTypeInContext(gallivm->context), 4); 256 elem_types[2] = LLVMArrayType(elem_types[1], data_elems); 257 258 vertex_header = LLVMStructTypeInContext(gallivm->context, elem_types, 259 Elements(elem_types), 0); 260 261 LLVMInvalidateStructLayout(gallivm->target, vertex_header); 262 263 /* these are bit-fields and we can't take address of them 264 LP_CHECK_MEMBER_OFFSET(struct vertex_header, clipmask, 265 target, vertex_header, 266 DRAW_JIT_VERTEX_CLIPMASK); 267 LP_CHECK_MEMBER_OFFSET(struct vertex_header, edgeflag, 268 target, vertex_header, 269 DRAW_JIT_VERTEX_EDGEFLAG); 270 LP_CHECK_MEMBER_OFFSET(struct vertex_header, pad, 271 target, vertex_header, 272 DRAW_JIT_VERTEX_PAD); 273 LP_CHECK_MEMBER_OFFSET(struct vertex_header, vertex_id, 274 target, vertex_header, 275 DRAW_JIT_VERTEX_VERTEX_ID); 276 */ 277 LP_CHECK_MEMBER_OFFSET(struct vertex_header, clip, 278 target, vertex_header, 279 DRAW_JIT_VERTEX_CLIP); 280 LP_CHECK_MEMBER_OFFSET(struct vertex_header, data, 281 target, vertex_header, 282 DRAW_JIT_VERTEX_DATA); 283 284 LLVMAddTypeName(gallivm->module, struct_name, vertex_header); 285 286 return vertex_header; 287} 288 289 290/** 291 * Create LLVM types for various structures. 292 */ 293static void 294create_jit_types(struct draw_llvm *llvm) 295{ 296 struct gallivm_state *gallivm = llvm->gallivm; 297 LLVMTypeRef texture_type, context_type, buffer_type, vb_type; 298 299 texture_type = create_jit_texture_type(gallivm); 300 LLVMAddTypeName(gallivm->module, "texture", texture_type); 301 302 context_type = create_jit_context_type(gallivm, texture_type); 303 LLVMAddTypeName(gallivm->module, "draw_jit_context", context_type); 304 llvm->context_ptr_type = LLVMPointerType(context_type, 0); 305 306 buffer_type = LLVMPointerType(LLVMIntTypeInContext(gallivm->context, 8), 0); 307 LLVMAddTypeName(gallivm->module, "buffer", buffer_type); 308 llvm->buffer_ptr_type = LLVMPointerType(buffer_type, 0); 309 310 vb_type = create_jit_vertex_buffer_type(gallivm); 311 LLVMAddTypeName(gallivm->module, "pipe_vertex_buffer", vb_type); 312 llvm->vb_ptr_type = LLVMPointerType(vb_type, 0); 313} 314 315 316static LLVMTypeRef 317get_context_ptr_type(struct draw_llvm *llvm) 318{ 319 if (!llvm->context_ptr_type) 320 create_jit_types(llvm); 321 return llvm->context_ptr_type; 322} 323 324 325static LLVMTypeRef 326get_buffer_ptr_type(struct draw_llvm *llvm) 327{ 328 if (!llvm->buffer_ptr_type) 329 create_jit_types(llvm); 330 return llvm->buffer_ptr_type; 331} 332 333 334static LLVMTypeRef 335get_vb_ptr_type(struct draw_llvm *llvm) 336{ 337 if (!llvm->vb_ptr_type) 338 create_jit_types(llvm); 339 return llvm->vb_ptr_type; 340} 341 342static LLVMTypeRef 343get_vertex_header_ptr_type(struct draw_llvm *llvm) 344{ 345 if (!llvm->vertex_header_ptr_type) 346 create_jit_types(llvm); 347 return llvm->vertex_header_ptr_type; 348} 349 350 351/** 352 * Create per-context LLVM info. 353 */ 354struct draw_llvm * 355draw_llvm_create(struct draw_context *draw, struct gallivm_state *gallivm) 356{ 357 struct draw_llvm *llvm; 358 359 llvm = CALLOC_STRUCT( draw_llvm ); 360 if (!llvm) 361 return NULL; 362 363 lp_build_init(); 364 365 llvm->draw = draw; 366 llvm->gallivm = gallivm; 367 368 if (gallivm_debug & GALLIVM_DEBUG_IR) { 369 LLVMDumpModule(llvm->gallivm->module); 370 } 371 372 llvm->nr_variants = 0; 373 make_empty_list(&llvm->vs_variants_list); 374 375 gallivm_register_garbage_collector_callback( 376 draw_llvm_garbage_collect_callback, llvm); 377 378 return llvm; 379} 380 381 382/** 383 * Free per-context LLVM info. 384 */ 385void 386draw_llvm_destroy(struct draw_llvm *llvm) 387{ 388 gallivm_remove_garbage_collector_callback( 389 draw_llvm_garbage_collect_callback, llvm); 390 391 /* XXX free other draw_llvm data? */ 392 FREE(llvm); 393} 394 395 396/** 397 * Create LLVM-generated code for a vertex shader. 398 */ 399struct draw_llvm_variant * 400draw_llvm_create_variant(struct draw_llvm *llvm, 401 unsigned num_inputs, 402 const struct draw_llvm_variant_key *key) 403{ 404 struct draw_llvm_variant *variant; 405 struct llvm_vertex_shader *shader = 406 llvm_vertex_shader(llvm->draw->vs.vertex_shader); 407 LLVMTypeRef vertex_header; 408 409 variant = MALLOC(sizeof *variant + 410 shader->variant_key_size - 411 sizeof variant->key); 412 if (variant == NULL) 413 return NULL; 414 415 variant->llvm = llvm; 416 417 memcpy(&variant->key, key, shader->variant_key_size); 418 419 vertex_header = create_jit_vertex_header(llvm->gallivm, num_inputs); 420 421 llvm->vertex_header_ptr_type = LLVMPointerType(vertex_header, 0); 422 423 draw_llvm_generate(llvm, variant); 424 draw_llvm_generate_elts(llvm, variant); 425 426 variant->shader = shader; 427 variant->list_item_global.base = variant; 428 variant->list_item_local.base = variant; 429 /*variant->no = */shader->variants_created++; 430 variant->list_item_global.base = variant; 431 432 return variant; 433} 434 435static void 436generate_vs(struct draw_llvm *llvm, 437 LLVMBuilderRef builder, 438 LLVMValueRef (*outputs)[NUM_CHANNELS], 439 const LLVMValueRef (*inputs)[NUM_CHANNELS], 440 LLVMValueRef context_ptr, 441 struct lp_build_sampler_soa *draw_sampler) 442{ 443 const struct tgsi_token *tokens = llvm->draw->vs.vertex_shader->state.tokens; 444 struct lp_type vs_type; 445 LLVMValueRef consts_ptr = draw_jit_context_vs_constants(llvm->gallivm, context_ptr); 446 struct lp_build_sampler_soa *sampler = 0; 447 448 memset(&vs_type, 0, sizeof vs_type); 449 vs_type.floating = TRUE; /* floating point values */ 450 vs_type.sign = TRUE; /* values are signed */ 451 vs_type.norm = FALSE; /* values are not limited to [0,1] or [-1,1] */ 452 vs_type.width = 32; /* 32-bit float */ 453 vs_type.length = 4; /* 4 elements per vector */ 454#if 0 455 num_vs = 4; /* number of vertices per block */ 456#endif 457 458 if (gallivm_debug & GALLIVM_DEBUG_IR) { 459 tgsi_dump(tokens, 0); 460 } 461 462 if (llvm->draw->num_sampler_views && 463 llvm->draw->num_samplers) 464 sampler = draw_sampler; 465 466 lp_build_tgsi_soa(llvm->gallivm, 467 tokens, 468 vs_type, 469 NULL /*struct lp_build_mask_context *mask*/, 470 consts_ptr, 471 NULL /*pos*/, 472 inputs, 473 outputs, 474 sampler, 475 &llvm->draw->vs.vertex_shader->info); 476} 477 478#if DEBUG_STORE 479static void print_vectorf(LLVMBuilderRef builder, 480 LLVMValueRef vec) 481{ 482 LLVMValueRef val[4]; 483 val[0] = LLVMBuildExtractElement(builder, vec, 484 lp_build_const_int32(gallivm, 0), ""); 485 val[1] = LLVMBuildExtractElement(builder, vec, 486 lp_build_const_int32(gallivm, 1), ""); 487 val[2] = LLVMBuildExtractElement(builder, vec, 488 lp_build_const_int32(gallivm, 2), ""); 489 val[3] = LLVMBuildExtractElement(builder, vec, 490 lp_build_const_int32(gallivm, 3), ""); 491 lp_build_printf(builder, "vector = [%f, %f, %f, %f]\n", 492 val[0], val[1], val[2], val[3]); 493} 494#endif 495 496static void 497generate_fetch(struct gallivm_state *gallivm, 498 LLVMValueRef vbuffers_ptr, 499 LLVMValueRef *res, 500 struct pipe_vertex_element *velem, 501 LLVMValueRef vbuf, 502 LLVMValueRef index, 503 LLVMValueRef instance_id) 504{ 505 LLVMBuilderRef builder = gallivm->builder; 506 LLVMValueRef indices = 507 LLVMConstInt(LLVMInt64TypeInContext(gallivm->context), 508 velem->vertex_buffer_index, 0); 509 LLVMValueRef vbuffer_ptr = LLVMBuildGEP(builder, vbuffers_ptr, 510 &indices, 1, ""); 511 LLVMValueRef vb_stride = draw_jit_vbuffer_stride(gallivm, vbuf); 512 LLVMValueRef vb_max_index = draw_jit_vbuffer_max_index(gallivm, vbuf); 513 LLVMValueRef vb_buffer_offset = draw_jit_vbuffer_offset(gallivm, vbuf); 514 LLVMValueRef cond; 515 LLVMValueRef stride; 516 517 if (velem->instance_divisor) { 518 /* array index = instance_id / instance_divisor */ 519 index = LLVMBuildUDiv(builder, instance_id, 520 lp_build_const_int32(gallivm, velem->instance_divisor), 521 "instance_divisor"); 522 } 523 524 /* limit index to min(index, vb_max_index) */ 525 cond = LLVMBuildICmp(builder, LLVMIntULE, index, vb_max_index, ""); 526 index = LLVMBuildSelect(builder, cond, index, vb_max_index, ""); 527 528 stride = LLVMBuildMul(builder, vb_stride, index, ""); 529 530 vbuffer_ptr = LLVMBuildLoad(builder, vbuffer_ptr, "vbuffer"); 531 532 stride = LLVMBuildAdd(builder, stride, 533 vb_buffer_offset, 534 ""); 535 stride = LLVMBuildAdd(builder, stride, 536 lp_build_const_int32(gallivm, velem->src_offset), 537 ""); 538 539 /*lp_build_printf(builder, "vbuf index = %d, stride is %d\n", indices, stride);*/ 540 vbuffer_ptr = LLVMBuildGEP(builder, vbuffer_ptr, &stride, 1, ""); 541 542 *res = draw_llvm_translate_from(gallivm, vbuffer_ptr, velem->src_format); 543} 544 545static LLVMValueRef 546aos_to_soa(struct gallivm_state *gallivm, 547 LLVMValueRef val0, 548 LLVMValueRef val1, 549 LLVMValueRef val2, 550 LLVMValueRef val3, 551 LLVMValueRef channel) 552{ 553 LLVMBuilderRef builder = gallivm->builder; 554 LLVMValueRef ex, res; 555 556 ex = LLVMBuildExtractElement(builder, val0, 557 channel, ""); 558 res = LLVMBuildInsertElement(builder, 559 LLVMConstNull(LLVMTypeOf(val0)), 560 ex, 561 lp_build_const_int32(gallivm, 0), 562 ""); 563 564 ex = LLVMBuildExtractElement(builder, val1, 565 channel, ""); 566 res = LLVMBuildInsertElement(builder, 567 res, ex, 568 lp_build_const_int32(gallivm, 1), 569 ""); 570 571 ex = LLVMBuildExtractElement(builder, val2, 572 channel, ""); 573 res = LLVMBuildInsertElement(builder, 574 res, ex, 575 lp_build_const_int32(gallivm, 2), 576 ""); 577 578 ex = LLVMBuildExtractElement(builder, val3, 579 channel, ""); 580 res = LLVMBuildInsertElement(builder, 581 res, ex, 582 lp_build_const_int32(gallivm, 3), 583 ""); 584 585 return res; 586} 587 588static void 589soa_to_aos(struct gallivm_state *gallivm, 590 LLVMValueRef soa[NUM_CHANNELS], 591 LLVMValueRef aos[NUM_CHANNELS]) 592{ 593 LLVMBuilderRef builder = gallivm->builder; 594 LLVMValueRef comp; 595 int i = 0; 596 597 debug_assert(NUM_CHANNELS == 4); 598 599 aos[0] = LLVMConstNull(LLVMTypeOf(soa[0])); 600 aos[1] = aos[2] = aos[3] = aos[0]; 601 602 for (i = 0; i < NUM_CHANNELS; ++i) { 603 LLVMValueRef channel = lp_build_const_int32(gallivm, i); 604 605 comp = LLVMBuildExtractElement(builder, soa[i], 606 lp_build_const_int32(gallivm, 0), ""); 607 aos[0] = LLVMBuildInsertElement(builder, aos[0], comp, channel, ""); 608 609 comp = LLVMBuildExtractElement(builder, soa[i], 610 lp_build_const_int32(gallivm, 1), ""); 611 aos[1] = LLVMBuildInsertElement(builder, aos[1], comp, channel, ""); 612 613 comp = LLVMBuildExtractElement(builder, soa[i], 614 lp_build_const_int32(gallivm, 2), ""); 615 aos[2] = LLVMBuildInsertElement(builder, aos[2], comp, channel, ""); 616 617 comp = LLVMBuildExtractElement(builder, soa[i], 618 lp_build_const_int32(gallivm, 3), ""); 619 aos[3] = LLVMBuildInsertElement(builder, aos[3], comp, channel, ""); 620 621 } 622} 623 624static void 625convert_to_soa(struct gallivm_state *gallivm, 626 LLVMValueRef (*aos)[NUM_CHANNELS], 627 LLVMValueRef (*soa)[NUM_CHANNELS], 628 int num_attribs) 629{ 630 int i; 631 632 debug_assert(NUM_CHANNELS == 4); 633 634 for (i = 0; i < num_attribs; ++i) { 635 LLVMValueRef val0 = aos[i][0]; 636 LLVMValueRef val1 = aos[i][1]; 637 LLVMValueRef val2 = aos[i][2]; 638 LLVMValueRef val3 = aos[i][3]; 639 640 soa[i][0] = aos_to_soa(gallivm, val0, val1, val2, val3, 641 lp_build_const_int32(gallivm, 0)); 642 soa[i][1] = aos_to_soa(gallivm, val0, val1, val2, val3, 643 lp_build_const_int32(gallivm, 1)); 644 soa[i][2] = aos_to_soa(gallivm, val0, val1, val2, val3, 645 lp_build_const_int32(gallivm, 2)); 646 soa[i][3] = aos_to_soa(gallivm, val0, val1, val2, val3, 647 lp_build_const_int32(gallivm, 3)); 648 } 649} 650 651static void 652store_aos(struct gallivm_state *gallivm, 653 LLVMValueRef io_ptr, 654 LLVMValueRef index, 655 LLVMValueRef value, 656 LLVMValueRef clipmask) 657{ 658 LLVMBuilderRef builder = gallivm->builder; 659 LLVMValueRef id_ptr = draw_jit_header_id(gallivm, io_ptr); 660 LLVMValueRef data_ptr = draw_jit_header_data(gallivm, io_ptr); 661 LLVMValueRef indices[3]; 662 LLVMValueRef val, shift; 663 664 indices[0] = lp_build_const_int32(gallivm, 0); 665 indices[1] = index; 666 indices[2] = lp_build_const_int32(gallivm, 0); 667 668 /* initialize vertex id:16 = 0xffff, pad:3 = 0, edgeflag:1 = 1 */ 669 val = lp_build_const_int32(gallivm, 0xffff1); 670 shift = lp_build_const_int32(gallivm, 12); 671 val = LLVMBuildShl(builder, val, shift, ""); 672 /* add clipmask:12 */ 673 val = LLVMBuildOr(builder, val, clipmask, ""); 674 675 /* store vertex header */ 676 LLVMBuildStore(builder, val, id_ptr); 677 678 679#if DEBUG_STORE 680 lp_build_printf(builder, " ---- %p storing attribute %d (io = %p)\n", data_ptr, index, io_ptr); 681#endif 682#if 0 683 /*lp_build_printf(builder, " ---- %p storing at %d (%p) ", io_ptr, index, data_ptr); 684 print_vectorf(builder, value);*/ 685 data_ptr = LLVMBuildBitCast(builder, data_ptr, 686 LLVMPointerType(LLVMArrayType(LLVMVectorType(LLVMFloatTypeInContext(gallivm->context), 4), 0), 0), 687 "datavec"); 688 data_ptr = LLVMBuildGEP(builder, data_ptr, indices, 2, ""); 689 690 LLVMBuildStore(builder, value, data_ptr); 691#else 692 { 693 LLVMValueRef x, y, z, w; 694 LLVMValueRef idx0, idx1, idx2, idx3; 695 LLVMValueRef gep0, gep1, gep2, gep3; 696 data_ptr = LLVMBuildGEP(builder, data_ptr, indices, 3, ""); 697 698 idx0 = lp_build_const_int32(gallivm, 0); 699 idx1 = lp_build_const_int32(gallivm, 1); 700 idx2 = lp_build_const_int32(gallivm, 2); 701 idx3 = lp_build_const_int32(gallivm, 3); 702 703 x = LLVMBuildExtractElement(builder, value, 704 idx0, ""); 705 y = LLVMBuildExtractElement(builder, value, 706 idx1, ""); 707 z = LLVMBuildExtractElement(builder, value, 708 idx2, ""); 709 w = LLVMBuildExtractElement(builder, value, 710 idx3, ""); 711 712 gep0 = LLVMBuildGEP(builder, data_ptr, &idx0, 1, ""); 713 gep1 = LLVMBuildGEP(builder, data_ptr, &idx1, 1, ""); 714 gep2 = LLVMBuildGEP(builder, data_ptr, &idx2, 1, ""); 715 gep3 = LLVMBuildGEP(builder, data_ptr, &idx3, 1, ""); 716 717 /*lp_build_printf(builder, "##### x = %f (%p), y = %f (%p), z = %f (%p), w = %f (%p)\n", 718 x, gep0, y, gep1, z, gep2, w, gep3);*/ 719 LLVMBuildStore(builder, x, gep0); 720 LLVMBuildStore(builder, y, gep1); 721 LLVMBuildStore(builder, z, gep2); 722 LLVMBuildStore(builder, w, gep3); 723 } 724#endif 725} 726 727static void 728store_aos_array(struct gallivm_state *gallivm, 729 LLVMValueRef io_ptr, 730 LLVMValueRef aos[NUM_CHANNELS], 731 int attrib, 732 int num_outputs, 733 LLVMValueRef clipmask) 734{ 735 LLVMBuilderRef builder = gallivm->builder; 736 LLVMValueRef attr_index = lp_build_const_int32(gallivm, attrib); 737 LLVMValueRef ind0 = lp_build_const_int32(gallivm, 0); 738 LLVMValueRef ind1 = lp_build_const_int32(gallivm, 1); 739 LLVMValueRef ind2 = lp_build_const_int32(gallivm, 2); 740 LLVMValueRef ind3 = lp_build_const_int32(gallivm, 3); 741 LLVMValueRef io0_ptr, io1_ptr, io2_ptr, io3_ptr; 742 LLVMValueRef clipmask0, clipmask1, clipmask2, clipmask3; 743 744 debug_assert(NUM_CHANNELS == 4); 745 746 io0_ptr = LLVMBuildGEP(builder, io_ptr, 747 &ind0, 1, ""); 748 io1_ptr = LLVMBuildGEP(builder, io_ptr, 749 &ind1, 1, ""); 750 io2_ptr = LLVMBuildGEP(builder, io_ptr, 751 &ind2, 1, ""); 752 io3_ptr = LLVMBuildGEP(builder, io_ptr, 753 &ind3, 1, ""); 754 755 clipmask0 = LLVMBuildExtractElement(builder, clipmask, 756 ind0, ""); 757 clipmask1 = LLVMBuildExtractElement(builder, clipmask, 758 ind1, ""); 759 clipmask2 = LLVMBuildExtractElement(builder, clipmask, 760 ind2, ""); 761 clipmask3 = LLVMBuildExtractElement(builder, clipmask, 762 ind3, ""); 763 764#if DEBUG_STORE 765 lp_build_printf(builder, "io = %p, indexes[%d, %d, %d, %d]\n, clipmask0 = %x, clipmask1 = %x, clipmask2 = %x, clipmask3 = %x\n", 766 io_ptr, ind0, ind1, ind2, ind3, clipmask0, clipmask1, clipmask2, clipmask3); 767#endif 768 /* store for each of the 4 vertices */ 769 store_aos(gallivm, io0_ptr, attr_index, aos[0], clipmask0); 770 store_aos(gallivm, io1_ptr, attr_index, aos[1], clipmask1); 771 store_aos(gallivm, io2_ptr, attr_index, aos[2], clipmask2); 772 store_aos(gallivm, io3_ptr, attr_index, aos[3], clipmask3); 773} 774 775static void 776convert_to_aos(struct gallivm_state *gallivm, 777 LLVMValueRef io, 778 LLVMValueRef (*outputs)[NUM_CHANNELS], 779 LLVMValueRef clipmask, 780 int num_outputs, 781 int max_vertices) 782{ 783 LLVMBuilderRef builder = gallivm->builder; 784 unsigned chan, attrib; 785 786#if DEBUG_STORE 787 lp_build_printf(builder, " # storing begin\n"); 788#endif 789 for (attrib = 0; attrib < num_outputs; ++attrib) { 790 LLVMValueRef soa[4]; 791 LLVMValueRef aos[4]; 792 for(chan = 0; chan < NUM_CHANNELS; ++chan) { 793 if(outputs[attrib][chan]) { 794 LLVMValueRef out = LLVMBuildLoad(builder, outputs[attrib][chan], ""); 795 lp_build_name(out, "output%u.%c", attrib, "xyzw"[chan]); 796 /*lp_build_printf(builder, "output %d : %d ", 797 LLVMConstInt(LLVMInt32Type(), attrib, 0), 798 LLVMConstInt(LLVMInt32Type(), chan, 0)); 799 print_vectorf(builder, out);*/ 800 soa[chan] = out; 801 } else 802 soa[chan] = 0; 803 } 804 soa_to_aos(gallivm, soa, aos); 805 store_aos_array(gallivm, 806 io, 807 aos, 808 attrib, 809 num_outputs, 810 clipmask); 811 } 812#if DEBUG_STORE 813 lp_build_printf(builder, " # storing end\n"); 814#endif 815} 816 817/* 818 * Stores original vertex positions in clip coordinates 819 * There is probably a more efficient way to do this, 4 floats at once 820 * rather than extracting each element one by one. 821 */ 822static void 823store_clip(struct gallivm_state *gallivm, 824 LLVMValueRef io_ptr, 825 LLVMValueRef (*outputs)[NUM_CHANNELS]) 826{ 827 LLVMBuilderRef builder = gallivm->builder; 828 LLVMValueRef out[4]; 829 LLVMValueRef indices[2]; 830 LLVMValueRef io0_ptr, io1_ptr, io2_ptr, io3_ptr; 831 LLVMValueRef clip_ptr0, clip_ptr1, clip_ptr2, clip_ptr3; 832 LLVMValueRef clip0_ptr, clip1_ptr, clip2_ptr, clip3_ptr; 833 LLVMValueRef out0elem, out1elem, out2elem, out3elem; 834 int i; 835 836 LLVMValueRef ind0 = lp_build_const_int32(gallivm, 0); 837 LLVMValueRef ind1 = lp_build_const_int32(gallivm, 1); 838 LLVMValueRef ind2 = lp_build_const_int32(gallivm, 2); 839 LLVMValueRef ind3 = lp_build_const_int32(gallivm, 3); 840 841 indices[0] = 842 indices[1] = lp_build_const_int32(gallivm, 0); 843 844 out[0] = LLVMBuildLoad(builder, outputs[0][0], ""); /*x0 x1 x2 x3*/ 845 out[1] = LLVMBuildLoad(builder, outputs[0][1], ""); /*y0 y1 y2 y3*/ 846 out[2] = LLVMBuildLoad(builder, outputs[0][2], ""); /*z0 z1 z2 z3*/ 847 out[3] = LLVMBuildLoad(builder, outputs[0][3], ""); /*w0 w1 w2 w3*/ 848 849 io0_ptr = LLVMBuildGEP(builder, io_ptr, &ind0, 1, ""); 850 io1_ptr = LLVMBuildGEP(builder, io_ptr, &ind1, 1, ""); 851 io2_ptr = LLVMBuildGEP(builder, io_ptr, &ind2, 1, ""); 852 io3_ptr = LLVMBuildGEP(builder, io_ptr, &ind3, 1, ""); 853 854 clip_ptr0 = draw_jit_header_clip(gallivm, io0_ptr); 855 clip_ptr1 = draw_jit_header_clip(gallivm, io1_ptr); 856 clip_ptr2 = draw_jit_header_clip(gallivm, io2_ptr); 857 clip_ptr3 = draw_jit_header_clip(gallivm, io3_ptr); 858 859 for (i = 0; i<4; i++){ 860 clip0_ptr = LLVMBuildGEP(builder, clip_ptr0, indices, 2, ""); /* x0 */ 861 clip1_ptr = LLVMBuildGEP(builder, clip_ptr1, indices, 2, ""); /* x1 */ 862 clip2_ptr = LLVMBuildGEP(builder, clip_ptr2, indices, 2, ""); /* x2 */ 863 clip3_ptr = LLVMBuildGEP(builder, clip_ptr3, indices, 2, ""); /* x3 */ 864 865 out0elem = LLVMBuildExtractElement(builder, out[i], ind0, ""); /* x0 */ 866 out1elem = LLVMBuildExtractElement(builder, out[i], ind1, ""); /* x1 */ 867 out2elem = LLVMBuildExtractElement(builder, out[i], ind2, ""); /* x2 */ 868 out3elem = LLVMBuildExtractElement(builder, out[i], ind3, ""); /* x3 */ 869 870 LLVMBuildStore(builder, out0elem, clip0_ptr); 871 LLVMBuildStore(builder, out1elem, clip1_ptr); 872 LLVMBuildStore(builder, out2elem, clip2_ptr); 873 LLVMBuildStore(builder, out3elem, clip3_ptr); 874 875 indices[1]= LLVMBuildAdd(builder, indices[1], ind1, ""); 876 } 877 878} 879 880/* Equivalent of _mm_set1_ps(a) 881 */ 882static LLVMValueRef 883vec4f_from_scalar(struct gallivm_state *gallivm, 884 LLVMValueRef a, 885 const char *name) 886{ 887 LLVMTypeRef float_type = LLVMFloatTypeInContext(gallivm->context); 888 LLVMValueRef res = LLVMGetUndef(LLVMVectorType(float_type, 4)); 889 int i; 890 891 for(i = 0; i < 4; ++i) { 892 LLVMValueRef index = lp_build_const_int32(gallivm, i); 893 res = LLVMBuildInsertElement(gallivm->builder, res, a, 894 index, i == 3 ? name : ""); 895 } 896 897 return res; 898} 899 900/* 901 * Transforms the outputs for viewport mapping 902 */ 903static void 904generate_viewport(struct draw_llvm *llvm, 905 LLVMBuilderRef builder, 906 LLVMValueRef (*outputs)[NUM_CHANNELS], 907 LLVMValueRef context_ptr) 908{ 909 int i; 910 struct gallivm_state *gallivm = llvm->gallivm; 911 struct lp_type f32_type = lp_type_float_vec(32); 912 LLVMValueRef out3 = LLVMBuildLoad(builder, outputs[0][3], ""); /*w0 w1 w2 w3*/ 913 LLVMValueRef const1 = lp_build_const_vec(gallivm, f32_type, 1.0); /*1.0 1.0 1.0 1.0*/ 914 LLVMValueRef vp_ptr = draw_jit_context_viewport(gallivm, context_ptr); 915 916 /* for 1/w convention*/ 917 out3 = LLVMBuildFDiv(builder, const1, out3, ""); 918 LLVMBuildStore(builder, out3, outputs[0][3]); 919 920 /* Viewport Mapping */ 921 for (i=0; i<3; i++){ 922 LLVMValueRef out = LLVMBuildLoad(builder, outputs[0][i], ""); /*x0 x1 x2 x3*/ 923 LLVMValueRef scale; 924 LLVMValueRef trans; 925 LLVMValueRef scale_i; 926 LLVMValueRef trans_i; 927 LLVMValueRef index; 928 929 index = lp_build_const_int32(gallivm, i); 930 scale_i = LLVMBuildGEP(builder, vp_ptr, &index, 1, ""); 931 932 index = lp_build_const_int32(gallivm, i+4); 933 trans_i = LLVMBuildGEP(builder, vp_ptr, &index, 1, ""); 934 935 scale = vec4f_from_scalar(gallivm, LLVMBuildLoad(builder, scale_i, ""), "scale"); 936 trans = vec4f_from_scalar(gallivm, LLVMBuildLoad(builder, trans_i, ""), "trans"); 937 938 /* divide by w */ 939 out = LLVMBuildFMul(builder, out, out3, ""); 940 /* mult by scale */ 941 out = LLVMBuildFMul(builder, out, scale, ""); 942 /* add translation */ 943 out = LLVMBuildFAdd(builder, out, trans, ""); 944 945 /* store transformed outputs */ 946 LLVMBuildStore(builder, out, outputs[0][i]); 947 } 948 949} 950 951 952/* 953 * Returns clipmask as 4xi32 bitmask for the 4 vertices 954 */ 955static LLVMValueRef 956generate_clipmask(struct gallivm_state *gallivm, 957 LLVMValueRef (*outputs)[NUM_CHANNELS], 958 boolean clip_xy, 959 boolean clip_z, 960 boolean clip_user, 961 boolean clip_halfz, 962 unsigned nr, 963 LLVMValueRef context_ptr) 964{ 965 LLVMBuilderRef builder = gallivm->builder; 966 LLVMValueRef mask; /* stores the <4xi32> clipmasks */ 967 LLVMValueRef test, temp; 968 LLVMValueRef zero, shift; 969 LLVMValueRef pos_x, pos_y, pos_z, pos_w; 970 LLVMValueRef plane1, planes, plane_ptr, sum; 971 972 unsigned i; 973 974 struct lp_type f32_type = lp_type_float_vec(32); 975 976 mask = lp_build_const_int_vec(gallivm, lp_type_int_vec(32), 0); 977 temp = lp_build_const_int_vec(gallivm, lp_type_int_vec(32), 0); 978 zero = lp_build_const_vec(gallivm, f32_type, 0); /* 0.0f 0.0f 0.0f 0.0f */ 979 shift = lp_build_const_int_vec(gallivm, lp_type_int_vec(32), 1); /* 1 1 1 1 */ 980 981 /* Assuming position stored at output[0] */ 982 pos_x = LLVMBuildLoad(builder, outputs[0][0], ""); /*x0 x1 x2 x3*/ 983 pos_y = LLVMBuildLoad(builder, outputs[0][1], ""); /*y0 y1 y2 y3*/ 984 pos_z = LLVMBuildLoad(builder, outputs[0][2], ""); /*z0 z1 z2 z3*/ 985 pos_w = LLVMBuildLoad(builder, outputs[0][3], ""); /*w0 w1 w2 w3*/ 986 987 /* Cliptest, for hardwired planes */ 988 if (clip_xy){ 989 /* plane 1 */ 990 test = lp_build_compare(gallivm, f32_type, PIPE_FUNC_GREATER, pos_x , pos_w); 991 temp = shift; 992 test = LLVMBuildAnd(builder, test, temp, ""); 993 mask = test; 994 995 /* plane 2 */ 996 test = LLVMBuildFAdd(builder, pos_x, pos_w, ""); 997 test = lp_build_compare(gallivm, f32_type, PIPE_FUNC_GREATER, zero, test); 998 temp = LLVMBuildShl(builder, temp, shift, ""); 999 test = LLVMBuildAnd(builder, test, temp, ""); 1000 mask = LLVMBuildOr(builder, mask, test, ""); 1001 1002 /* plane 3 */ 1003 test = lp_build_compare(gallivm, f32_type, PIPE_FUNC_GREATER, pos_y, pos_w); 1004 temp = LLVMBuildShl(builder, temp, shift, ""); 1005 test = LLVMBuildAnd(builder, test, temp, ""); 1006 mask = LLVMBuildOr(builder, mask, test, ""); 1007 1008 /* plane 4 */ 1009 test = LLVMBuildFAdd(builder, pos_y, pos_w, ""); 1010 test = lp_build_compare(gallivm, f32_type, PIPE_FUNC_GREATER, zero, test); 1011 temp = LLVMBuildShl(builder, temp, shift, ""); 1012 test = LLVMBuildAnd(builder, test, temp, ""); 1013 mask = LLVMBuildOr(builder, mask, test, ""); 1014 } 1015 1016 if (clip_z){ 1017 temp = lp_build_const_int_vec(gallivm, lp_type_int_vec(32), 16); 1018 if (clip_halfz){ 1019 /* plane 5 */ 1020 test = lp_build_compare(gallivm, f32_type, PIPE_FUNC_GREATER, zero, pos_z); 1021 test = LLVMBuildAnd(builder, test, temp, ""); 1022 mask = LLVMBuildOr(builder, mask, test, ""); 1023 } 1024 else{ 1025 /* plane 5 */ 1026 test = LLVMBuildFAdd(builder, pos_z, pos_w, ""); 1027 test = lp_build_compare(gallivm, f32_type, PIPE_FUNC_GREATER, zero, test); 1028 test = LLVMBuildAnd(builder, test, temp, ""); 1029 mask = LLVMBuildOr(builder, mask, test, ""); 1030 } 1031 /* plane 6 */ 1032 test = lp_build_compare(gallivm, f32_type, PIPE_FUNC_GREATER, pos_z, pos_w); 1033 temp = LLVMBuildShl(builder, temp, shift, ""); 1034 test = LLVMBuildAnd(builder, test, temp, ""); 1035 mask = LLVMBuildOr(builder, mask, test, ""); 1036 } 1037 1038 if (clip_user){ 1039 LLVMValueRef planes_ptr = draw_jit_context_planes(gallivm, context_ptr); 1040 LLVMValueRef indices[3]; 1041 temp = lp_build_const_int_vec(gallivm, lp_type_int_vec(32), 32); 1042 1043 /* userclip planes */ 1044 for (i = 6; i < nr; i++) { 1045 indices[0] = lp_build_const_int32(gallivm, 0); 1046 indices[1] = lp_build_const_int32(gallivm, i); 1047 1048 indices[2] = lp_build_const_int32(gallivm, 0); 1049 plane_ptr = LLVMBuildGEP(builder, planes_ptr, indices, 3, ""); 1050 plane1 = LLVMBuildLoad(builder, plane_ptr, "plane_x"); 1051 planes = vec4f_from_scalar(gallivm, plane1, "plane4_x"); 1052 sum = LLVMBuildFMul(builder, planes, pos_x, ""); 1053 1054 indices[2] = lp_build_const_int32(gallivm, 1); 1055 plane_ptr = LLVMBuildGEP(builder, planes_ptr, indices, 3, ""); 1056 plane1 = LLVMBuildLoad(builder, plane_ptr, "plane_y"); 1057 planes = vec4f_from_scalar(gallivm, plane1, "plane4_y"); 1058 test = LLVMBuildFMul(builder, planes, pos_y, ""); 1059 sum = LLVMBuildFAdd(builder, sum, test, ""); 1060 1061 indices[2] = lp_build_const_int32(gallivm, 2); 1062 plane_ptr = LLVMBuildGEP(builder, planes_ptr, indices, 3, ""); 1063 plane1 = LLVMBuildLoad(builder, plane_ptr, "plane_z"); 1064 planes = vec4f_from_scalar(gallivm, plane1, "plane4_z"); 1065 test = LLVMBuildFMul(builder, planes, pos_z, ""); 1066 sum = LLVMBuildFAdd(builder, sum, test, ""); 1067 1068 indices[2] = lp_build_const_int32(gallivm, 3); 1069 plane_ptr = LLVMBuildGEP(builder, planes_ptr, indices, 3, ""); 1070 plane1 = LLVMBuildLoad(builder, plane_ptr, "plane_w"); 1071 planes = vec4f_from_scalar(gallivm, plane1, "plane4_w"); 1072 test = LLVMBuildFMul(builder, planes, pos_w, ""); 1073 sum = LLVMBuildFAdd(builder, sum, test, ""); 1074 1075 test = lp_build_compare(gallivm, f32_type, PIPE_FUNC_GREATER, zero, sum); 1076 temp = LLVMBuildShl(builder, temp, shift, ""); 1077 test = LLVMBuildAnd(builder, test, temp, ""); 1078 mask = LLVMBuildOr(builder, mask, test, ""); 1079 } 1080 } 1081 return mask; 1082} 1083 1084/* 1085 * Returns boolean if any clipping has occurred 1086 * Used zero/non-zero i32 value to represent boolean 1087 */ 1088static void 1089clipmask_bool(struct gallivm_state *gallivm, 1090 LLVMValueRef clipmask, 1091 LLVMValueRef ret_ptr) 1092{ 1093 LLVMBuilderRef builder = gallivm->builder; 1094 LLVMValueRef ret = LLVMBuildLoad(builder, ret_ptr, ""); 1095 LLVMValueRef temp; 1096 int i; 1097 1098 for (i=0; i<4; i++){ 1099 temp = LLVMBuildExtractElement(builder, clipmask, 1100 lp_build_const_int32(gallivm, i) , ""); 1101 ret = LLVMBuildOr(builder, ret, temp, ""); 1102 } 1103 1104 LLVMBuildStore(builder, ret, ret_ptr); 1105} 1106 1107static void 1108draw_llvm_generate(struct draw_llvm *llvm, struct draw_llvm_variant *variant) 1109{ 1110 struct gallivm_state *gallivm = llvm->gallivm; 1111 LLVMContextRef context = gallivm->context; 1112 LLVMTypeRef int32_type = LLVMInt32TypeInContext(context); 1113 LLVMTypeRef arg_types[8]; 1114 LLVMTypeRef func_type; 1115 LLVMValueRef context_ptr; 1116 LLVMBasicBlockRef block; 1117 LLVMBuilderRef builder; 1118 LLVMValueRef start, end, count, stride, step, io_itr; 1119 LLVMValueRef io_ptr, vbuffers_ptr, vb_ptr; 1120 LLVMValueRef instance_id; 1121 struct draw_context *draw = llvm->draw; 1122 unsigned i, j; 1123 struct lp_build_context bld; 1124 struct lp_build_loop_state lp_loop; 1125 const int max_vertices = 4; 1126 LLVMValueRef outputs[PIPE_MAX_SHADER_OUTPUTS][NUM_CHANNELS]; 1127 void *code; 1128 struct lp_build_sampler_soa *sampler = 0; 1129 LLVMValueRef ret, ret_ptr; 1130 boolean bypass_viewport = variant->key.bypass_viewport; 1131 boolean enable_cliptest = variant->key.clip_xy || 1132 variant->key.clip_z || 1133 variant->key.clip_user; 1134 1135 arg_types[0] = get_context_ptr_type(llvm); /* context */ 1136 arg_types[1] = get_vertex_header_ptr_type(llvm); /* vertex_header */ 1137 arg_types[2] = get_buffer_ptr_type(llvm); /* vbuffers */ 1138 arg_types[3] = int32_type; /* start */ 1139 arg_types[4] = int32_type; /* count */ 1140 arg_types[5] = int32_type; /* stride */ 1141 arg_types[6] = get_vb_ptr_type(llvm); /* pipe_vertex_buffer's */ 1142 arg_types[7] = int32_type; /* instance_id */ 1143 1144 func_type = LLVMFunctionType(int32_type, arg_types, Elements(arg_types), 0); 1145 1146 variant->function = LLVMAddFunction(gallivm->module, "draw_llvm_shader", 1147 func_type); 1148 LLVMSetFunctionCallConv(variant->function, LLVMCCallConv); 1149 for(i = 0; i < Elements(arg_types); ++i) 1150 if(LLVMGetTypeKind(arg_types[i]) == LLVMPointerTypeKind) 1151 LLVMAddAttribute(LLVMGetParam(variant->function, i), LLVMNoAliasAttribute); 1152 1153 context_ptr = LLVMGetParam(variant->function, 0); 1154 io_ptr = LLVMGetParam(variant->function, 1); 1155 vbuffers_ptr = LLVMGetParam(variant->function, 2); 1156 start = LLVMGetParam(variant->function, 3); 1157 count = LLVMGetParam(variant->function, 4); 1158 stride = LLVMGetParam(variant->function, 5); 1159 vb_ptr = LLVMGetParam(variant->function, 6); 1160 instance_id = LLVMGetParam(variant->function, 7); 1161 1162 lp_build_name(context_ptr, "context"); 1163 lp_build_name(io_ptr, "io"); 1164 lp_build_name(vbuffers_ptr, "vbuffers"); 1165 lp_build_name(start, "start"); 1166 lp_build_name(count, "count"); 1167 lp_build_name(stride, "stride"); 1168 lp_build_name(vb_ptr, "vb"); 1169 lp_build_name(instance_id, "instance_id"); 1170 1171 /* 1172 * Function body 1173 */ 1174 1175 block = LLVMAppendBasicBlockInContext(gallivm->context, variant->function, "entry"); 1176 builder = gallivm->builder; 1177 assert(builder); 1178 LLVMPositionBuilderAtEnd(builder, block); 1179 1180 lp_build_context_init(&bld, llvm->gallivm, lp_type_int(32)); 1181 1182 end = lp_build_add(&bld, start, count); 1183 1184 step = lp_build_const_int32(gallivm, max_vertices); 1185 1186 /* function will return non-zero i32 value if any clipped vertices */ 1187 ret_ptr = lp_build_alloca(gallivm, int32_type, ""); 1188 LLVMBuildStore(builder, lp_build_const_int32(gallivm, 0), ret_ptr); 1189 1190 /* code generated texture sampling */ 1191 sampler = draw_llvm_sampler_soa_create( 1192 draw_llvm_variant_key_samplers(&variant->key), 1193 context_ptr); 1194 1195#if DEBUG_STORE 1196 lp_build_printf(builder, "start = %d, end = %d, step = %d\n", 1197 start, end, step); 1198#endif 1199 lp_build_loop_begin(&lp_loop, llvm->gallivm, start); 1200 { 1201 LLVMValueRef inputs[PIPE_MAX_SHADER_INPUTS][NUM_CHANNELS]; 1202 LLVMValueRef aos_attribs[PIPE_MAX_SHADER_INPUTS][NUM_CHANNELS] = { { 0 } }; 1203 LLVMValueRef io; 1204 LLVMValueRef clipmask; /* holds the clipmask value */ 1205 const LLVMValueRef (*ptr_aos)[NUM_CHANNELS]; 1206 1207 io_itr = LLVMBuildSub(builder, lp_loop.counter, start, ""); 1208 io = LLVMBuildGEP(builder, io_ptr, &io_itr, 1, ""); 1209#if DEBUG_STORE 1210 lp_build_printf(builder, " --- io %d = %p, loop counter %d\n", 1211 io_itr, io, lp_loop.counter); 1212#endif 1213 for (i = 0; i < NUM_CHANNELS; ++i) { 1214 LLVMValueRef true_index = LLVMBuildAdd( 1215 builder, 1216 lp_loop.counter, 1217 lp_build_const_int32(gallivm, i), ""); 1218 for (j = 0; j < draw->pt.nr_vertex_elements; ++j) { 1219 struct pipe_vertex_element *velem = &draw->pt.vertex_element[j]; 1220 LLVMValueRef vb_index = lp_build_const_int32(gallivm, velem->vertex_buffer_index); 1221 LLVMValueRef vb = LLVMBuildGEP(builder, vb_ptr, 1222 &vb_index, 1, ""); 1223 generate_fetch(llvm->gallivm, vbuffers_ptr, 1224 &aos_attribs[j][i], velem, vb, true_index, 1225 instance_id); 1226 } 1227 } 1228 convert_to_soa(gallivm, aos_attribs, inputs, 1229 draw->pt.nr_vertex_elements); 1230 1231 ptr_aos = (const LLVMValueRef (*)[NUM_CHANNELS]) inputs; 1232 generate_vs(llvm, 1233 builder, 1234 outputs, 1235 ptr_aos, 1236 context_ptr, 1237 sampler); 1238 1239 /* store original positions in clip before further manipulation */ 1240 store_clip(gallivm, io, outputs); 1241 1242 /* do cliptest */ 1243 if (enable_cliptest){ 1244 /* allocate clipmask, assign it integer type */ 1245 clipmask = generate_clipmask(gallivm, outputs, 1246 variant->key.clip_xy, 1247 variant->key.clip_z, 1248 variant->key.clip_user, 1249 variant->key.clip_halfz, 1250 variant->key.nr_planes, 1251 context_ptr); 1252 /* return clipping boolean value for function */ 1253 clipmask_bool(gallivm, clipmask, ret_ptr); 1254 } 1255 else{ 1256 clipmask = lp_build_const_int_vec(gallivm, lp_type_int_vec(32), 0); 1257 } 1258 1259 /* do viewport mapping */ 1260 if (!bypass_viewport){ 1261 generate_viewport(llvm, builder, outputs, context_ptr); 1262 } 1263 1264 /* store clipmask in vertex header and positions in data */ 1265 convert_to_aos(gallivm, io, outputs, clipmask, 1266 draw->vs.vertex_shader->info.num_outputs, 1267 max_vertices); 1268 } 1269 1270 lp_build_loop_end_cond(&lp_loop, end, step, LLVMIntUGE); 1271 1272 sampler->destroy(sampler); 1273 1274 ret = LLVMBuildLoad(builder, ret_ptr,""); 1275 LLVMBuildRet(builder, ret); 1276 1277 /* 1278 * Translate the LLVM IR into machine code. 1279 */ 1280#ifdef DEBUG 1281 if(LLVMVerifyFunction(variant->function, LLVMPrintMessageAction)) { 1282 lp_debug_dump_value(variant->function); 1283 assert(0); 1284 } 1285#endif 1286 1287 LLVMRunFunctionPassManager(gallivm->passmgr, variant->function); 1288 1289 if (gallivm_debug & GALLIVM_DEBUG_IR) { 1290 lp_debug_dump_value(variant->function); 1291 debug_printf("\n"); 1292 } 1293 1294 code = LLVMGetPointerToGlobal(gallivm->engine, variant->function); 1295 variant->jit_func = (draw_jit_vert_func)pointer_to_func(code); 1296 1297 if (gallivm_debug & GALLIVM_DEBUG_ASM) { 1298 lp_disassemble(code); 1299 } 1300 lp_func_delete_body(variant->function); 1301} 1302 1303 1304static void 1305draw_llvm_generate_elts(struct draw_llvm *llvm, struct draw_llvm_variant *variant) 1306{ 1307 struct gallivm_state *gallivm = llvm->gallivm; 1308 LLVMContextRef context = gallivm->context; 1309 LLVMTypeRef int32_type = LLVMInt32TypeInContext(context); 1310 LLVMTypeRef arg_types[8]; 1311 LLVMTypeRef func_type; 1312 LLVMValueRef context_ptr; 1313 LLVMBasicBlockRef block; 1314 LLVMBuilderRef builder; 1315 LLVMValueRef fetch_elts, fetch_count, stride, step, io_itr; 1316 LLVMValueRef io_ptr, vbuffers_ptr, vb_ptr; 1317 LLVMValueRef instance_id; 1318 struct draw_context *draw = llvm->draw; 1319 unsigned i, j; 1320 struct lp_build_context bld; 1321 struct lp_build_loop_state lp_loop; 1322 const int max_vertices = 4; 1323 LLVMValueRef outputs[PIPE_MAX_SHADER_OUTPUTS][NUM_CHANNELS]; 1324 LLVMValueRef fetch_max; 1325 void *code; 1326 struct lp_build_sampler_soa *sampler = 0; 1327 LLVMValueRef ret, ret_ptr; 1328 boolean bypass_viewport = variant->key.bypass_viewport; 1329 boolean enable_cliptest = variant->key.clip_xy || 1330 variant->key.clip_z || 1331 variant->key.clip_user; 1332 1333 arg_types[0] = get_context_ptr_type(llvm); /* context */ 1334 arg_types[1] = get_vertex_header_ptr_type(llvm); /* vertex_header */ 1335 arg_types[2] = get_buffer_ptr_type(llvm); /* vbuffers */ 1336 arg_types[3] = LLVMPointerType(int32_type, 0); /* fetch_elts * */ 1337 arg_types[4] = int32_type; /* fetch_count */ 1338 arg_types[5] = int32_type; /* stride */ 1339 arg_types[6] = get_vb_ptr_type(llvm); /* pipe_vertex_buffer's */ 1340 arg_types[7] = int32_type; /* instance_id */ 1341 1342 func_type = LLVMFunctionType(int32_type, arg_types, Elements(arg_types), 0); 1343 1344 variant->function_elts = LLVMAddFunction(gallivm->module, "draw_llvm_shader_elts", func_type); 1345 LLVMSetFunctionCallConv(variant->function_elts, LLVMCCallConv); 1346 for(i = 0; i < Elements(arg_types); ++i) 1347 if(LLVMGetTypeKind(arg_types[i]) == LLVMPointerTypeKind) 1348 LLVMAddAttribute(LLVMGetParam(variant->function_elts, i), 1349 LLVMNoAliasAttribute); 1350 1351 context_ptr = LLVMGetParam(variant->function_elts, 0); 1352 io_ptr = LLVMGetParam(variant->function_elts, 1); 1353 vbuffers_ptr = LLVMGetParam(variant->function_elts, 2); 1354 fetch_elts = LLVMGetParam(variant->function_elts, 3); 1355 fetch_count = LLVMGetParam(variant->function_elts, 4); 1356 stride = LLVMGetParam(variant->function_elts, 5); 1357 vb_ptr = LLVMGetParam(variant->function_elts, 6); 1358 instance_id = LLVMGetParam(variant->function_elts, 7); 1359 1360 lp_build_name(context_ptr, "context"); 1361 lp_build_name(io_ptr, "io"); 1362 lp_build_name(vbuffers_ptr, "vbuffers"); 1363 lp_build_name(fetch_elts, "fetch_elts"); 1364 lp_build_name(fetch_count, "fetch_count"); 1365 lp_build_name(stride, "stride"); 1366 lp_build_name(vb_ptr, "vb"); 1367 lp_build_name(instance_id, "instance_id"); 1368 1369 /* 1370 * Function body 1371 */ 1372 1373 block = LLVMAppendBasicBlockInContext(gallivm->context, variant->function_elts, "entry"); 1374 builder = gallivm->builder; 1375 LLVMPositionBuilderAtEnd(builder, block); 1376 1377 lp_build_context_init(&bld, gallivm, lp_type_int(32)); 1378 1379 step = lp_build_const_int32(gallivm, max_vertices); 1380 1381 /* code generated texture sampling */ 1382 sampler = draw_llvm_sampler_soa_create( 1383 draw_llvm_variant_key_samplers(&variant->key), 1384 context_ptr); 1385 1386 fetch_max = LLVMBuildSub(builder, fetch_count, 1387 lp_build_const_int32(gallivm, 1), 1388 "fetch_max"); 1389 1390 /* function returns non-zero i32 value if any clipped vertices */ 1391 ret_ptr = lp_build_alloca(gallivm, int32_type, ""); 1392 LLVMBuildStore(builder, lp_build_const_int32(gallivm, 0), ret_ptr); 1393 1394 lp_build_loop_begin(&lp_loop, gallivm, lp_build_const_int32(gallivm, 0)); 1395 { 1396 LLVMValueRef inputs[PIPE_MAX_SHADER_INPUTS][NUM_CHANNELS]; 1397 LLVMValueRef aos_attribs[PIPE_MAX_SHADER_INPUTS][NUM_CHANNELS] = { { 0 } }; 1398 LLVMValueRef io; 1399 LLVMValueRef clipmask; /* holds the clipmask value */ 1400 const LLVMValueRef (*ptr_aos)[NUM_CHANNELS]; 1401 1402 io_itr = lp_loop.counter; 1403 io = LLVMBuildGEP(builder, io_ptr, &io_itr, 1, ""); 1404#if DEBUG_STORE 1405 lp_build_printf(builder, " --- io %d = %p, loop counter %d\n", 1406 io_itr, io, lp_loop.counter); 1407#endif 1408 for (i = 0; i < NUM_CHANNELS; ++i) { 1409 LLVMValueRef true_index = LLVMBuildAdd( 1410 builder, 1411 lp_loop.counter, 1412 lp_build_const_int32(gallivm, i), ""); 1413 LLVMValueRef fetch_ptr; 1414 1415 /* make sure we're not out of bounds which can happen 1416 * if fetch_count % 4 != 0, because on the last iteration 1417 * a few of the 4 vertex fetches will be out of bounds */ 1418 true_index = lp_build_min(&bld, true_index, fetch_max); 1419 1420 fetch_ptr = LLVMBuildGEP(builder, fetch_elts, 1421 &true_index, 1, ""); 1422 true_index = LLVMBuildLoad(builder, fetch_ptr, "fetch_elt"); 1423 for (j = 0; j < draw->pt.nr_vertex_elements; ++j) { 1424 struct pipe_vertex_element *velem = &draw->pt.vertex_element[j]; 1425 LLVMValueRef vb_index = lp_build_const_int32(gallivm, velem->vertex_buffer_index); 1426 LLVMValueRef vb = LLVMBuildGEP(builder, vb_ptr, 1427 &vb_index, 1, ""); 1428 generate_fetch(gallivm, vbuffers_ptr, 1429 &aos_attribs[j][i], velem, vb, true_index, 1430 instance_id); 1431 } 1432 } 1433 convert_to_soa(gallivm, aos_attribs, inputs, 1434 draw->pt.nr_vertex_elements); 1435 1436 ptr_aos = (const LLVMValueRef (*)[NUM_CHANNELS]) inputs; 1437 generate_vs(llvm, 1438 builder, 1439 outputs, 1440 ptr_aos, 1441 context_ptr, 1442 sampler); 1443 1444 /* store original positions in clip before further manipulation */ 1445 store_clip(gallivm, io, outputs); 1446 1447 /* do cliptest */ 1448 if (enable_cliptest){ 1449 /* allocate clipmask, assign it integer type */ 1450 clipmask = generate_clipmask(gallivm, outputs, 1451 variant->key.clip_xy, 1452 variant->key.clip_z, 1453 variant->key.clip_user, 1454 variant->key.clip_halfz, 1455 variant->key.nr_planes, 1456 context_ptr); 1457 /* return clipping boolean value for function */ 1458 clipmask_bool(gallivm, clipmask, ret_ptr); 1459 } 1460 else{ 1461 clipmask = lp_build_const_int_vec(gallivm, lp_type_int_vec(32), 0); 1462 } 1463 1464 /* do viewport mapping */ 1465 if (!bypass_viewport){ 1466 generate_viewport(llvm, builder, outputs, context_ptr); 1467 } 1468 1469 /* store clipmask in vertex header, 1470 * original positions in clip 1471 * and transformed positions in data 1472 */ 1473 convert_to_aos(gallivm, io, outputs, clipmask, 1474 draw->vs.vertex_shader->info.num_outputs, 1475 max_vertices); 1476 } 1477 1478 lp_build_loop_end_cond(&lp_loop, fetch_count, step, LLVMIntUGE); 1479 1480 sampler->destroy(sampler); 1481 1482 ret = LLVMBuildLoad(builder, ret_ptr,""); 1483 LLVMBuildRet(builder, ret); 1484 1485 /* 1486 * Translate the LLVM IR into machine code. 1487 */ 1488#ifdef DEBUG 1489 if(LLVMVerifyFunction(variant->function_elts, LLVMPrintMessageAction)) { 1490 lp_debug_dump_value(variant->function_elts); 1491 assert(0); 1492 } 1493#endif 1494 1495 LLVMRunFunctionPassManager(gallivm->passmgr, variant->function_elts); 1496 1497 if (gallivm_debug & GALLIVM_DEBUG_IR) { 1498 lp_debug_dump_value(variant->function_elts); 1499 debug_printf("\n"); 1500 } 1501 1502 code = LLVMGetPointerToGlobal(gallivm->engine, variant->function_elts); 1503 variant->jit_func_elts = (draw_jit_vert_func_elts)pointer_to_func(code); 1504 1505 if (gallivm_debug & GALLIVM_DEBUG_ASM) { 1506 lp_disassemble(code); 1507 } 1508 lp_func_delete_body(variant->function_elts); 1509} 1510 1511 1512struct draw_llvm_variant_key * 1513draw_llvm_make_variant_key(struct draw_llvm *llvm, char *store) 1514{ 1515 unsigned i; 1516 struct draw_llvm_variant_key *key; 1517 struct lp_sampler_static_state *sampler; 1518 1519 key = (struct draw_llvm_variant_key *)store; 1520 1521 /* Presumably all variants of the shader should have the same 1522 * number of vertex elements - ie the number of shader inputs. 1523 */ 1524 key->nr_vertex_elements = llvm->draw->pt.nr_vertex_elements; 1525 1526 /* will have to rig this up properly later */ 1527 key->clip_xy = llvm->draw->clip_xy; 1528 key->clip_z = llvm->draw->clip_z; 1529 key->clip_user = llvm->draw->clip_user; 1530 key->bypass_viewport = llvm->draw->identity_viewport; 1531 key->clip_halfz = !llvm->draw->rasterizer->gl_rasterization_rules; 1532 key->need_edgeflags = (llvm->draw->vs.edgeflag_output ? TRUE : FALSE); 1533 key->nr_planes = llvm->draw->nr_planes; 1534 key->pad = 0; 1535 1536 /* All variants of this shader will have the same value for 1537 * nr_samplers. Not yet trying to compact away holes in the 1538 * sampler array. 1539 */ 1540 key->nr_samplers = llvm->draw->vs.vertex_shader->info.file_max[TGSI_FILE_SAMPLER] + 1; 1541 1542 sampler = draw_llvm_variant_key_samplers(key); 1543 1544 memcpy(key->vertex_element, 1545 llvm->draw->pt.vertex_element, 1546 sizeof(struct pipe_vertex_element) * key->nr_vertex_elements); 1547 1548 memset(sampler, 0, key->nr_samplers * sizeof *sampler); 1549 1550 for (i = 0 ; i < key->nr_samplers; i++) { 1551 lp_sampler_static_state(&sampler[i], 1552 llvm->draw->sampler_views[i], 1553 llvm->draw->samplers[i]); 1554 } 1555 1556 return key; 1557} 1558 1559void 1560draw_llvm_set_mapped_texture(struct draw_context *draw, 1561 unsigned sampler_idx, 1562 uint32_t width, uint32_t height, uint32_t depth, 1563 uint32_t last_level, 1564 uint32_t row_stride[PIPE_MAX_TEXTURE_LEVELS], 1565 uint32_t img_stride[PIPE_MAX_TEXTURE_LEVELS], 1566 const void *data[PIPE_MAX_TEXTURE_LEVELS]) 1567{ 1568 unsigned j; 1569 struct draw_jit_texture *jit_tex; 1570 1571 assert(sampler_idx < PIPE_MAX_VERTEX_SAMPLERS); 1572 1573 1574 jit_tex = &draw->llvm->jit_context.textures[sampler_idx]; 1575 1576 jit_tex->width = width; 1577 jit_tex->height = height; 1578 jit_tex->depth = depth; 1579 jit_tex->last_level = last_level; 1580 1581 for (j = 0; j <= last_level; j++) { 1582 jit_tex->data[j] = data[j]; 1583 jit_tex->row_stride[j] = row_stride[j]; 1584 jit_tex->img_stride[j] = img_stride[j]; 1585 } 1586} 1587 1588 1589void 1590draw_llvm_set_sampler_state(struct draw_context *draw) 1591{ 1592 unsigned i; 1593 1594 for (i = 0; i < draw->num_samplers; i++) { 1595 struct draw_jit_texture *jit_tex = &draw->llvm->jit_context.textures[i]; 1596 1597 if (draw->samplers[i]) { 1598 jit_tex->min_lod = draw->samplers[i]->min_lod; 1599 jit_tex->max_lod = draw->samplers[i]->max_lod; 1600 jit_tex->lod_bias = draw->samplers[i]->lod_bias; 1601 COPY_4V(jit_tex->border_color, draw->samplers[i]->border_color); 1602 } 1603 } 1604} 1605 1606 1607void 1608draw_llvm_destroy_variant(struct draw_llvm_variant *variant) 1609{ 1610 struct draw_llvm *llvm = variant->llvm; 1611 1612 if (variant->function_elts) { 1613 if (variant->function_elts) 1614 LLVMFreeMachineCodeForFunction(llvm->gallivm->engine, 1615 variant->function_elts); 1616 LLVMDeleteFunction(variant->function_elts); 1617 } 1618 1619 if (variant->function) { 1620 if (variant->function) 1621 LLVMFreeMachineCodeForFunction(llvm->gallivm->engine, 1622 variant->function); 1623 LLVMDeleteFunction(variant->function); 1624 } 1625 1626 remove_from_list(&variant->list_item_local); 1627 variant->shader->variants_cached--; 1628 remove_from_list(&variant->list_item_global); 1629 llvm->nr_variants--; 1630 FREE(variant); 1631} 1632