1%{ 2/* 3 * Copyright © 2009 Intel Corporation 4 * 5 * Permission is hereby granted, free of charge, to any person obtaining a 6 * copy of this software and associated documentation files (the "Software"), 7 * to deal in the Software without restriction, including without limitation 8 * the rights to use, copy, modify, merge, publish, distribute, sublicense, 9 * and/or sell copies of the Software, and to permit persons to whom the 10 * Software is furnished to do so, subject to the following conditions: 11 * 12 * The above copyright notice and this permission notice (including the next 13 * paragraph) shall be included in all copies or substantial portions of the 14 * Software. 15 * 16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 17 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 18 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL 19 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER 20 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING 21 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER 22 * DEALINGS IN THE SOFTWARE. 23 */ 24 25#include <stdarg.h> 26#include <stdio.h> 27#include <stdlib.h> 28#include <string.h> 29 30#include "main/errors.h" 31#include "main/mtypes.h" 32#include "main/imports.h" 33#include "program/program.h" 34#include "program/prog_parameter.h" 35#include "program/prog_parameter_layout.h" 36#include "program/prog_statevars.h" 37#include "program/prog_instruction.h" 38 39#include "program/symbol_table.h" 40#include "program/program_parser.h" 41 42#include "util/u_math.h" 43 44extern void *yy_scan_string(char *); 45extern void yy_delete_buffer(void *); 46 47static struct asm_symbol *declare_variable(struct asm_parser_state *state, 48 char *name, enum asm_type t, struct YYLTYPE *locp); 49 50static int add_state_reference(struct gl_program_parameter_list *param_list, 51 const gl_state_index16 tokens[STATE_LENGTH]); 52 53static int initialize_symbol_from_state(struct gl_program *prog, 54 struct asm_symbol *param_var, const gl_state_index16 tokens[STATE_LENGTH]); 55 56static int initialize_symbol_from_param(struct gl_program *prog, 57 struct asm_symbol *param_var, const gl_state_index16 tokens[STATE_LENGTH]); 58 59static int initialize_symbol_from_const(struct gl_program *prog, 60 struct asm_symbol *param_var, const struct asm_vector *vec, 61 GLboolean allowSwizzle); 62 63static int yyparse(struct asm_parser_state *state); 64 65static char *make_error_string(const char *fmt, ...); 66 67static void yyerror(struct YYLTYPE *locp, struct asm_parser_state *state, 68 const char *s); 69 70static int validate_inputs(struct YYLTYPE *locp, 71 struct asm_parser_state *state); 72 73static void init_dst_reg(struct prog_dst_register *r); 74 75static void set_dst_reg(struct prog_dst_register *r, 76 gl_register_file file, GLint index); 77 78static void init_src_reg(struct asm_src_register *r); 79 80static void set_src_reg(struct asm_src_register *r, 81 gl_register_file file, GLint index); 82 83static void set_src_reg_swz(struct asm_src_register *r, 84 gl_register_file file, GLint index, GLuint swizzle); 85 86static void asm_instruction_set_operands(struct asm_instruction *inst, 87 const struct prog_dst_register *dst, const struct asm_src_register *src0, 88 const struct asm_src_register *src1, const struct asm_src_register *src2); 89 90static struct asm_instruction *asm_instruction_ctor(enum prog_opcode op, 91 const struct prog_dst_register *dst, const struct asm_src_register *src0, 92 const struct asm_src_register *src1, const struct asm_src_register *src2); 93 94static struct asm_instruction *asm_instruction_copy_ctor( 95 const struct prog_instruction *base, const struct prog_dst_register *dst, 96 const struct asm_src_register *src0, const struct asm_src_register *src1, 97 const struct asm_src_register *src2); 98 99#ifndef FALSE 100#define FALSE 0 101#define TRUE (!FALSE) 102#endif 103 104#define YYLLOC_DEFAULT(Current, Rhs, N) \ 105 do { \ 106 if (N) { \ 107 (Current).first_line = YYRHSLOC(Rhs, 1).first_line; \ 108 (Current).first_column = YYRHSLOC(Rhs, 1).first_column; \ 109 (Current).position = YYRHSLOC(Rhs, 1).position; \ 110 (Current).last_line = YYRHSLOC(Rhs, N).last_line; \ 111 (Current).last_column = YYRHSLOC(Rhs, N).last_column; \ 112 } else { \ 113 (Current).first_line = YYRHSLOC(Rhs, 0).last_line; \ 114 (Current).last_line = (Current).first_line; \ 115 (Current).first_column = YYRHSLOC(Rhs, 0).last_column; \ 116 (Current).last_column = (Current).first_column; \ 117 (Current).position = YYRHSLOC(Rhs, 0).position \ 118 + (Current).first_column; \ 119 } \ 120 } while(0) 121%} 122 123%pure-parser 124%locations 125%lex-param { struct asm_parser_state *state } 126%parse-param { struct asm_parser_state *state } 127%error-verbose 128 129%union { 130 struct asm_instruction *inst; 131 struct asm_symbol *sym; 132 struct asm_symbol temp_sym; 133 struct asm_swizzle_mask swiz_mask; 134 struct asm_src_register src_reg; 135 struct prog_dst_register dst_reg; 136 struct prog_instruction temp_inst; 137 char *string; 138 unsigned result; 139 unsigned attrib; 140 int integer; 141 float real; 142 gl_state_index16 state[STATE_LENGTH]; 143 int negate; 144 struct asm_vector vector; 145 enum prog_opcode opcode; 146 147 struct { 148 unsigned swz; 149 unsigned rgba_valid:1; 150 unsigned xyzw_valid:1; 151 unsigned negate:1; 152 } ext_swizzle; 153} 154 155%token ARBvp_10 ARBfp_10 156 157/* Tokens for assembler pseudo-ops */ 158%token <integer> ADDRESS 159%token ALIAS ATTRIB 160%token OPTION OUTPUT 161%token PARAM 162%token <integer> TEMP 163%token END 164 165 /* Tokens for instructions */ 166%token <temp_inst> BIN_OP BINSC_OP SAMPLE_OP SCALAR_OP TRI_OP VECTOR_OP 167%token <temp_inst> ARL KIL SWZ TXD_OP 168 169%token <integer> INTEGER 170%token <real> REAL 171 172%token AMBIENT ATTENUATION 173%token BACK 174%token CLIP COLOR 175%token DEPTH DIFFUSE DIRECTION 176%token EMISSION ENV EYE 177%token FOG FOGCOORD FRAGMENT FRONT 178%token HALF 179%token INVERSE INVTRANS 180%token LIGHT LIGHTMODEL LIGHTPROD LOCAL 181%token MATERIAL MAT_PROGRAM MATRIX MATRIXINDEX MODELVIEW MVP 182%token NORMAL 183%token OBJECT 184%token PALETTE PARAMS PLANE POINT_TOK POINTSIZE POSITION PRIMARY PROGRAM PROJECTION 185%token RANGE RESULT ROW 186%token SCENECOLOR SECONDARY SHININESS SIZE_TOK SPECULAR SPOT STATE 187%token TEXCOORD TEXENV TEXGEN TEXGEN_Q TEXGEN_R TEXGEN_S TEXGEN_T TEXTURE TRANSPOSE 188%token TEXTURE_UNIT TEX_1D TEX_2D TEX_3D TEX_CUBE TEX_RECT 189%token TEX_SHADOW1D TEX_SHADOW2D TEX_SHADOWRECT 190%token TEX_ARRAY1D TEX_ARRAY2D TEX_ARRAYSHADOW1D TEX_ARRAYSHADOW2D 191%token VERTEX VTXATTRIB 192 193%token <string> IDENTIFIER USED_IDENTIFIER 194%type <string> string 195%token <swiz_mask> MASK4 MASK3 MASK2 MASK1 SWIZZLE 196%token DOT_DOT 197%token DOT 198 199%type <inst> instruction ALU_instruction TexInstruction 200%type <inst> ARL_instruction VECTORop_instruction 201%type <inst> SCALARop_instruction BINSCop_instruction BINop_instruction 202%type <inst> TRIop_instruction TXD_instruction SWZ_instruction SAMPLE_instruction 203%type <inst> KIL_instruction 204 205%type <dst_reg> dstReg maskedDstReg maskedAddrReg 206%type <src_reg> srcReg scalarUse scalarSrcReg swizzleSrcReg 207%type <swiz_mask> scalarSuffix swizzleSuffix extendedSwizzle 208%type <ext_swizzle> extSwizComp extSwizSel 209%type <swiz_mask> optionalMask 210 211%type <sym> progParamArray 212%type <integer> addrRegRelOffset addrRegPosOffset addrRegNegOffset 213%type <src_reg> progParamArrayMem progParamArrayAbs progParamArrayRel 214%type <sym> addrReg 215%type <swiz_mask> addrComponent addrWriteMask 216 217%type <result> resultBinding resultColBinding 218%type <integer> optFaceType optColorType 219%type <integer> optResultFaceType optResultColorType 220 221%type <integer> optTexImageUnitNum texImageUnitNum 222%type <integer> optTexCoordUnitNum texCoordUnitNum 223%type <integer> optLegacyTexUnitNum legacyTexUnitNum 224%type <integer> texImageUnit texTarget 225%type <integer> vtxAttribNum 226 227%type <attrib> attribBinding vtxAttribItem fragAttribItem 228 229%type <temp_sym> paramSingleInit paramSingleItemDecl 230%type <integer> optArraySize 231 232%type <state> stateSingleItem stateMultipleItem 233%type <state> stateMaterialItem 234%type <state> stateLightItem stateLightModelItem stateLightProdItem 235%type <state> stateTexGenItem stateFogItem stateClipPlaneItem statePointItem 236%type <state> stateMatrixItem stateMatrixRow stateMatrixRows 237%type <state> stateTexEnvItem stateDepthItem 238 239%type <state> stateLModProperty 240%type <state> stateMatrixName optMatrixRows 241 242%type <integer> stateMatProperty 243%type <integer> stateLightProperty stateSpotProperty 244%type <integer> stateLightNumber stateLProdProperty 245%type <integer> stateTexGenType stateTexGenCoord 246%type <integer> stateTexEnvProperty 247%type <integer> stateFogProperty 248%type <integer> stateClipPlaneNum 249%type <integer> statePointProperty 250 251%type <integer> stateOptMatModifier stateMatModifier stateMatrixRowNum 252%type <integer> stateOptModMatNum stateModMatNum statePaletteMatNum 253%type <integer> stateProgramMatNum 254 255%type <integer> ambDiffSpecProperty 256 257%type <state> programSingleItem progEnvParam progLocalParam 258%type <state> programMultipleItem progEnvParams progLocalParams 259 260%type <temp_sym> paramMultipleInit paramMultInitList paramMultipleItem 261%type <temp_sym> paramSingleItemUse 262 263%type <integer> progEnvParamNum progLocalParamNum 264%type <state> progEnvParamNums progLocalParamNums 265 266%type <vector> paramConstDecl paramConstUse 267%type <vector> paramConstScalarDecl paramConstScalarUse paramConstVector 268%type <real> signedFloatConstant 269%type <negate> optionalSign 270 271%{ 272extern int 273_mesa_program_lexer_lex(YYSTYPE *yylval_param, YYLTYPE *yylloc_param, 274 void *yyscanner); 275 276static int 277yylex(YYSTYPE *yylval_param, YYLTYPE *yylloc_param, 278 struct asm_parser_state *state) 279{ 280 return _mesa_program_lexer_lex(yylval_param, yylloc_param, state->scanner); 281} 282%} 283 284%% 285 286program: language optionSequence statementSequence END 287 ; 288 289language: ARBvp_10 290 { 291 if (state->prog->Target != GL_VERTEX_PROGRAM_ARB) { 292 yyerror(& @1, state, "invalid fragment program header"); 293 294 } 295 state->mode = ARB_vertex; 296 } 297 | ARBfp_10 298 { 299 if (state->prog->Target != GL_FRAGMENT_PROGRAM_ARB) { 300 yyerror(& @1, state, "invalid vertex program header"); 301 } 302 state->mode = ARB_fragment; 303 304 state->option.TexRect = 305 (state->ctx->Extensions.NV_texture_rectangle != GL_FALSE); 306 } 307 ; 308 309optionSequence: optionSequence option 310 | 311 ; 312 313option: OPTION string ';' 314 { 315 int valid = 0; 316 317 if (state->mode == ARB_vertex) { 318 valid = _mesa_ARBvp_parse_option(state, $2); 319 } else if (state->mode == ARB_fragment) { 320 valid = _mesa_ARBfp_parse_option(state, $2); 321 } 322 323 324 free($2); 325 326 if (!valid) { 327 const char *const err_str = (state->mode == ARB_vertex) 328 ? "invalid ARB vertex program option" 329 : "invalid ARB fragment program option"; 330 331 yyerror(& @2, state, err_str); 332 YYERROR; 333 } 334 } 335 ; 336 337statementSequence: statementSequence statement 338 | 339 ; 340 341statement: instruction ';' 342 { 343 if ($1 != NULL) { 344 if (state->inst_tail == NULL) { 345 state->inst_head = $1; 346 } else { 347 state->inst_tail->next = $1; 348 } 349 350 state->inst_tail = $1; 351 $1->next = NULL; 352 353 state->prog->arb.NumInstructions++; 354 } 355 } 356 | namingStatement ';' 357 ; 358 359instruction: ALU_instruction 360 { 361 $$ = $1; 362 state->prog->arb.NumAluInstructions++; 363 } 364 | TexInstruction 365 { 366 $$ = $1; 367 state->prog->arb.NumTexInstructions++; 368 } 369 ; 370 371ALU_instruction: ARL_instruction 372 | VECTORop_instruction 373 | SCALARop_instruction 374 | BINSCop_instruction 375 | BINop_instruction 376 | TRIop_instruction 377 | SWZ_instruction 378 ; 379 380TexInstruction: SAMPLE_instruction 381 | KIL_instruction 382 | TXD_instruction 383 ; 384 385ARL_instruction: ARL maskedAddrReg ',' scalarSrcReg 386 { 387 $$ = asm_instruction_ctor(OPCODE_ARL, & $2, & $4, NULL, NULL); 388 } 389 ; 390 391VECTORop_instruction: VECTOR_OP maskedDstReg ',' swizzleSrcReg 392 { 393 $$ = asm_instruction_copy_ctor(& $1, & $2, & $4, NULL, NULL); 394 } 395 ; 396 397SCALARop_instruction: SCALAR_OP maskedDstReg ',' scalarSrcReg 398 { 399 $$ = asm_instruction_copy_ctor(& $1, & $2, & $4, NULL, NULL); 400 } 401 ; 402 403BINSCop_instruction: BINSC_OP maskedDstReg ',' scalarSrcReg ',' scalarSrcReg 404 { 405 $$ = asm_instruction_copy_ctor(& $1, & $2, & $4, & $6, NULL); 406 } 407 ; 408 409 410BINop_instruction: BIN_OP maskedDstReg ',' swizzleSrcReg ',' swizzleSrcReg 411 { 412 $$ = asm_instruction_copy_ctor(& $1, & $2, & $4, & $6, NULL); 413 } 414 ; 415 416TRIop_instruction: TRI_OP maskedDstReg ',' 417 swizzleSrcReg ',' swizzleSrcReg ',' swizzleSrcReg 418 { 419 $$ = asm_instruction_copy_ctor(& $1, & $2, & $4, & $6, & $8); 420 } 421 ; 422 423SAMPLE_instruction: SAMPLE_OP maskedDstReg ',' swizzleSrcReg ',' texImageUnit ',' texTarget 424 { 425 $$ = asm_instruction_copy_ctor(& $1, & $2, & $4, NULL, NULL); 426 if ($$ != NULL) { 427 const GLbitfield tex_mask = (1U << $6); 428 GLbitfield shadow_tex = 0; 429 GLbitfield target_mask = 0; 430 431 432 $$->Base.TexSrcUnit = $6; 433 434 if ($8 < 0) { 435 shadow_tex = tex_mask; 436 437 $$->Base.TexSrcTarget = -$8; 438 $$->Base.TexShadow = 1; 439 } else { 440 $$->Base.TexSrcTarget = $8; 441 } 442 443 target_mask = (1U << $$->Base.TexSrcTarget); 444 445 /* If this texture unit was previously accessed and that access 446 * had a different texture target, generate an error. 447 * 448 * If this texture unit was previously accessed and that access 449 * had a different shadow mode, generate an error. 450 */ 451 if ((state->prog->TexturesUsed[$6] != 0) 452 && ((state->prog->TexturesUsed[$6] != target_mask) 453 || ((state->prog->ShadowSamplers & tex_mask) 454 != shadow_tex))) { 455 yyerror(& @8, state, 456 "multiple targets used on one texture image unit"); 457 YYERROR; 458 } 459 460 461 state->prog->TexturesUsed[$6] |= target_mask; 462 state->prog->ShadowSamplers |= shadow_tex; 463 } 464 } 465 ; 466 467KIL_instruction: KIL swizzleSrcReg 468 { 469 $$ = asm_instruction_ctor(OPCODE_KIL, NULL, & $2, NULL, NULL); 470 state->fragment.UsesKill = 1; 471 } 472 ; 473 474TXD_instruction: TXD_OP maskedDstReg ',' swizzleSrcReg ',' swizzleSrcReg ',' swizzleSrcReg ',' texImageUnit ',' texTarget 475 { 476 $$ = asm_instruction_copy_ctor(& $1, & $2, & $4, & $6, & $8); 477 if ($$ != NULL) { 478 const GLbitfield tex_mask = (1U << $10); 479 GLbitfield shadow_tex = 0; 480 GLbitfield target_mask = 0; 481 482 483 $$->Base.TexSrcUnit = $10; 484 485 if ($12 < 0) { 486 shadow_tex = tex_mask; 487 488 $$->Base.TexSrcTarget = -$12; 489 $$->Base.TexShadow = 1; 490 } else { 491 $$->Base.TexSrcTarget = $12; 492 } 493 494 target_mask = (1U << $$->Base.TexSrcTarget); 495 496 /* If this texture unit was previously accessed and that access 497 * had a different texture target, generate an error. 498 * 499 * If this texture unit was previously accessed and that access 500 * had a different shadow mode, generate an error. 501 */ 502 if ((state->prog->TexturesUsed[$10] != 0) 503 && ((state->prog->TexturesUsed[$10] != target_mask) 504 || ((state->prog->ShadowSamplers & tex_mask) 505 != shadow_tex))) { 506 yyerror(& @12, state, 507 "multiple targets used on one texture image unit"); 508 YYERROR; 509 } 510 511 512 state->prog->TexturesUsed[$10] |= target_mask; 513 state->prog->ShadowSamplers |= shadow_tex; 514 } 515 } 516 ; 517 518texImageUnit: TEXTURE_UNIT optTexImageUnitNum 519 { 520 $$ = $2; 521 } 522 ; 523 524texTarget: TEX_1D { $$ = TEXTURE_1D_INDEX; } 525 | TEX_2D { $$ = TEXTURE_2D_INDEX; } 526 | TEX_3D { $$ = TEXTURE_3D_INDEX; } 527 | TEX_CUBE { $$ = TEXTURE_CUBE_INDEX; } 528 | TEX_RECT { $$ = TEXTURE_RECT_INDEX; } 529 | TEX_SHADOW1D { $$ = -TEXTURE_1D_INDEX; } 530 | TEX_SHADOW2D { $$ = -TEXTURE_2D_INDEX; } 531 | TEX_SHADOWRECT { $$ = -TEXTURE_RECT_INDEX; } 532 | TEX_ARRAY1D { $$ = TEXTURE_1D_ARRAY_INDEX; } 533 | TEX_ARRAY2D { $$ = TEXTURE_2D_ARRAY_INDEX; } 534 | TEX_ARRAYSHADOW1D { $$ = -TEXTURE_1D_ARRAY_INDEX; } 535 | TEX_ARRAYSHADOW2D { $$ = -TEXTURE_2D_ARRAY_INDEX; } 536 ; 537 538SWZ_instruction: SWZ maskedDstReg ',' srcReg ',' extendedSwizzle 539 { 540 /* FIXME: Is this correct? Should the extenedSwizzle be applied 541 * FIXME: to the existing swizzle? 542 */ 543 $4.Base.Swizzle = $6.swizzle; 544 $4.Base.Negate = $6.mask; 545 546 $$ = asm_instruction_copy_ctor(& $1, & $2, & $4, NULL, NULL); 547 } 548 ; 549 550scalarSrcReg: optionalSign scalarUse 551 { 552 $$ = $2; 553 554 if ($1) { 555 $$.Base.Negate = ~$$.Base.Negate; 556 } 557 } 558 ; 559 560scalarUse: srcReg scalarSuffix 561 { 562 $$ = $1; 563 564 $$.Base.Swizzle = _mesa_combine_swizzles($$.Base.Swizzle, 565 $2.swizzle); 566 } 567 ; 568 569swizzleSrcReg: optionalSign srcReg swizzleSuffix 570 { 571 $$ = $2; 572 573 if ($1) { 574 $$.Base.Negate = ~$$.Base.Negate; 575 } 576 577 $$.Base.Swizzle = _mesa_combine_swizzles($$.Base.Swizzle, 578 $3.swizzle); 579 } 580 ; 581 582maskedDstReg: dstReg optionalMask 583 { 584 $$ = $1; 585 $$.WriteMask = $2.mask; 586 587 if ($$.File == PROGRAM_OUTPUT) { 588 /* Technically speaking, this should check that it is in 589 * vertex program mode. However, PositionInvariant can never be 590 * set in fragment program mode, so it is somewhat irrelevant. 591 */ 592 if (state->option.PositionInvariant 593 && ($$.Index == VARYING_SLOT_POS)) { 594 yyerror(& @1, state, "position-invariant programs cannot " 595 "write position"); 596 YYERROR; 597 } 598 599 state->prog->info.outputs_written |= BITFIELD64_BIT($$.Index); 600 } 601 } 602 ; 603 604maskedAddrReg: addrReg addrWriteMask 605 { 606 set_dst_reg(& $$, PROGRAM_ADDRESS, 0); 607 $$.WriteMask = $2.mask; 608 } 609 ; 610 611extendedSwizzle: extSwizComp ',' extSwizComp ',' extSwizComp ',' extSwizComp 612 { 613 const unsigned xyzw_valid = 614 ($1.xyzw_valid << 0) 615 | ($3.xyzw_valid << 1) 616 | ($5.xyzw_valid << 2) 617 | ($7.xyzw_valid << 3); 618 const unsigned rgba_valid = 619 ($1.rgba_valid << 0) 620 | ($3.rgba_valid << 1) 621 | ($5.rgba_valid << 2) 622 | ($7.rgba_valid << 3); 623 624 /* All of the swizzle components have to be valid in either RGBA 625 * or XYZW. Note that 0 and 1 are valid in both, so both masks 626 * can have some bits set. 627 * 628 * We somewhat deviate from the spec here. It would be really hard 629 * to figure out which component is the error, and there probably 630 * isn't a lot of benefit. 631 */ 632 if ((rgba_valid != 0x0f) && (xyzw_valid != 0x0f)) { 633 yyerror(& @1, state, "cannot combine RGBA and XYZW swizzle " 634 "components"); 635 YYERROR; 636 } 637 638 $$.swizzle = MAKE_SWIZZLE4($1.swz, $3.swz, $5.swz, $7.swz); 639 $$.mask = ($1.negate) | ($3.negate << 1) | ($5.negate << 2) 640 | ($7.negate << 3); 641 } 642 ; 643 644extSwizComp: optionalSign extSwizSel 645 { 646 $$ = $2; 647 $$.negate = ($1) ? 1 : 0; 648 } 649 ; 650 651extSwizSel: INTEGER 652 { 653 if (($1 != 0) && ($1 != 1)) { 654 yyerror(& @1, state, "invalid extended swizzle selector"); 655 YYERROR; 656 } 657 658 $$.swz = ($1 == 0) ? SWIZZLE_ZERO : SWIZZLE_ONE; 659 $$.negate = 0; 660 661 /* 0 and 1 are valid for both RGBA swizzle names and XYZW 662 * swizzle names. 663 */ 664 $$.xyzw_valid = 1; 665 $$.rgba_valid = 1; 666 } 667 | string 668 { 669 char s; 670 671 if (strlen($1) > 1) { 672 yyerror(& @1, state, "invalid extended swizzle selector"); 673 YYERROR; 674 } 675 676 s = $1[0]; 677 free($1); 678 679 $$.rgba_valid = 0; 680 $$.xyzw_valid = 0; 681 $$.negate = 0; 682 683 switch (s) { 684 case 'x': 685 $$.swz = SWIZZLE_X; 686 $$.xyzw_valid = 1; 687 break; 688 case 'y': 689 $$.swz = SWIZZLE_Y; 690 $$.xyzw_valid = 1; 691 break; 692 case 'z': 693 $$.swz = SWIZZLE_Z; 694 $$.xyzw_valid = 1; 695 break; 696 case 'w': 697 $$.swz = SWIZZLE_W; 698 $$.xyzw_valid = 1; 699 break; 700 701 case 'r': 702 $$.swz = SWIZZLE_X; 703 $$.rgba_valid = 1; 704 break; 705 case 'g': 706 $$.swz = SWIZZLE_Y; 707 $$.rgba_valid = 1; 708 break; 709 case 'b': 710 $$.swz = SWIZZLE_Z; 711 $$.rgba_valid = 1; 712 break; 713 case 'a': 714 $$.swz = SWIZZLE_W; 715 $$.rgba_valid = 1; 716 break; 717 718 default: 719 yyerror(& @1, state, "invalid extended swizzle selector"); 720 YYERROR; 721 break; 722 } 723 } 724 ; 725 726srcReg: USED_IDENTIFIER /* temporaryReg | progParamSingle */ 727 { 728 struct asm_symbol *const s = (struct asm_symbol *) 729 _mesa_symbol_table_find_symbol(state->st, $1); 730 731 free($1); 732 733 if (s == NULL) { 734 yyerror(& @1, state, "invalid operand variable"); 735 YYERROR; 736 } else if ((s->type != at_param) && (s->type != at_temp) 737 && (s->type != at_attrib)) { 738 yyerror(& @1, state, "invalid operand variable"); 739 YYERROR; 740 } else if ((s->type == at_param) && s->param_is_array) { 741 yyerror(& @1, state, "non-array access to array PARAM"); 742 YYERROR; 743 } 744 745 init_src_reg(& $$); 746 switch (s->type) { 747 case at_temp: 748 set_src_reg(& $$, PROGRAM_TEMPORARY, s->temp_binding); 749 break; 750 case at_param: 751 set_src_reg_swz(& $$, s->param_binding_type, 752 s->param_binding_begin, 753 s->param_binding_swizzle); 754 break; 755 case at_attrib: 756 set_src_reg(& $$, PROGRAM_INPUT, s->attrib_binding); 757 state->prog->info.inputs_read |= BITFIELD64_BIT($$.Base.Index); 758 759 if (!validate_inputs(& @1, state)) { 760 YYERROR; 761 } 762 break; 763 764 default: 765 YYERROR; 766 break; 767 } 768 } 769 | attribBinding 770 { 771 set_src_reg(& $$, PROGRAM_INPUT, $1); 772 state->prog->info.inputs_read |= BITFIELD64_BIT($$.Base.Index); 773 774 if (!validate_inputs(& @1, state)) { 775 YYERROR; 776 } 777 } 778 | progParamArray '[' progParamArrayMem ']' 779 { 780 if (! $3.Base.RelAddr 781 && ((unsigned) $3.Base.Index >= $1->param_binding_length)) { 782 yyerror(& @3, state, "out of bounds array access"); 783 YYERROR; 784 } 785 786 init_src_reg(& $$); 787 $$.Base.File = $1->param_binding_type; 788 789 if ($3.Base.RelAddr) { 790 state->prog->arb.IndirectRegisterFiles |= (1 << $$.Base.File); 791 $1->param_accessed_indirectly = 1; 792 793 $$.Base.RelAddr = 1; 794 $$.Base.Index = $3.Base.Index; 795 $$.Symbol = $1; 796 } else { 797 $$.Base.Index = $1->param_binding_begin + $3.Base.Index; 798 } 799 } 800 | paramSingleItemUse 801 { 802 gl_register_file file = ($1.name != NULL) 803 ? $1.param_binding_type 804 : PROGRAM_CONSTANT; 805 set_src_reg_swz(& $$, file, $1.param_binding_begin, 806 $1.param_binding_swizzle); 807 } 808 ; 809 810dstReg: resultBinding 811 { 812 set_dst_reg(& $$, PROGRAM_OUTPUT, $1); 813 } 814 | USED_IDENTIFIER /* temporaryReg | vertexResultReg */ 815 { 816 struct asm_symbol *const s = (struct asm_symbol *) 817 _mesa_symbol_table_find_symbol(state->st, $1); 818 819 free($1); 820 821 if (s == NULL) { 822 yyerror(& @1, state, "invalid operand variable"); 823 YYERROR; 824 } else if ((s->type != at_output) && (s->type != at_temp)) { 825 yyerror(& @1, state, "invalid operand variable"); 826 YYERROR; 827 } 828 829 switch (s->type) { 830 case at_temp: 831 set_dst_reg(& $$, PROGRAM_TEMPORARY, s->temp_binding); 832 break; 833 case at_output: 834 set_dst_reg(& $$, PROGRAM_OUTPUT, s->output_binding); 835 break; 836 default: 837 set_dst_reg(& $$, s->param_binding_type, s->param_binding_begin); 838 break; 839 } 840 } 841 ; 842 843progParamArray: USED_IDENTIFIER 844 { 845 struct asm_symbol *const s = (struct asm_symbol *) 846 _mesa_symbol_table_find_symbol(state->st, $1); 847 848 free($1); 849 850 if (s == NULL) { 851 yyerror(& @1, state, "invalid operand variable"); 852 YYERROR; 853 } else if ((s->type != at_param) || !s->param_is_array) { 854 yyerror(& @1, state, "array access to non-PARAM variable"); 855 YYERROR; 856 } else { 857 $$ = s; 858 } 859 } 860 ; 861 862progParamArrayMem: progParamArrayAbs | progParamArrayRel; 863 864progParamArrayAbs: INTEGER 865 { 866 init_src_reg(& $$); 867 $$.Base.Index = $1; 868 } 869 ; 870 871progParamArrayRel: addrReg addrComponent addrRegRelOffset 872 { 873 /* FINISHME: Add support for multiple address registers. 874 */ 875 /* FINISHME: Add support for 4-component address registers. 876 */ 877 init_src_reg(& $$); 878 $$.Base.RelAddr = 1; 879 $$.Base.Index = $3; 880 } 881 ; 882 883addrRegRelOffset: { $$ = 0; } 884 | '+' addrRegPosOffset { $$ = $2; } 885 | '-' addrRegNegOffset { $$ = -$2; } 886 ; 887 888addrRegPosOffset: INTEGER 889 { 890 if (($1 < 0) || ($1 > (state->limits->MaxAddressOffset - 1))) { 891 char s[100]; 892 _mesa_snprintf(s, sizeof(s), 893 "relative address offset too large (%d)", $1); 894 yyerror(& @1, state, s); 895 YYERROR; 896 } else { 897 $$ = $1; 898 } 899 } 900 ; 901 902addrRegNegOffset: INTEGER 903 { 904 if (($1 < 0) || ($1 > state->limits->MaxAddressOffset)) { 905 char s[100]; 906 _mesa_snprintf(s, sizeof(s), 907 "relative address offset too large (%d)", $1); 908 yyerror(& @1, state, s); 909 YYERROR; 910 } else { 911 $$ = $1; 912 } 913 } 914 ; 915 916addrReg: USED_IDENTIFIER 917 { 918 struct asm_symbol *const s = (struct asm_symbol *) 919 _mesa_symbol_table_find_symbol(state->st, $1); 920 921 free($1); 922 923 if (s == NULL) { 924 yyerror(& @1, state, "invalid array member"); 925 YYERROR; 926 } else if (s->type != at_address) { 927 yyerror(& @1, state, 928 "invalid variable for indexed array access"); 929 YYERROR; 930 } else { 931 $$ = s; 932 } 933 } 934 ; 935 936addrComponent: MASK1 937 { 938 if ($1.mask != WRITEMASK_X) { 939 yyerror(& @1, state, "invalid address component selector"); 940 YYERROR; 941 } else { 942 $$ = $1; 943 } 944 } 945 ; 946 947addrWriteMask: MASK1 948 { 949 if ($1.mask != WRITEMASK_X) { 950 yyerror(& @1, state, 951 "address register write mask must be \".x\""); 952 YYERROR; 953 } else { 954 $$ = $1; 955 } 956 } 957 ; 958 959scalarSuffix: MASK1; 960 961swizzleSuffix: MASK1 962 | MASK4 963 | SWIZZLE 964 | { $$.swizzle = SWIZZLE_NOOP; $$.mask = WRITEMASK_XYZW; } 965 ; 966 967optionalMask: MASK4 | MASK3 | MASK2 | MASK1 968 | { $$.swizzle = SWIZZLE_NOOP; $$.mask = WRITEMASK_XYZW; } 969 ; 970 971namingStatement: ATTRIB_statement 972 | PARAM_statement 973 | TEMP_statement 974 | ADDRESS_statement 975 | OUTPUT_statement 976 | ALIAS_statement 977 ; 978 979ATTRIB_statement: ATTRIB IDENTIFIER '=' attribBinding 980 { 981 struct asm_symbol *const s = 982 declare_variable(state, $2, at_attrib, & @2); 983 984 if (s == NULL) { 985 free($2); 986 YYERROR; 987 } else { 988 s->attrib_binding = $4; 989 state->InputsBound |= BITFIELD64_BIT(s->attrib_binding); 990 991 if (!validate_inputs(& @4, state)) { 992 YYERROR; 993 } 994 } 995 } 996 ; 997 998attribBinding: VERTEX vtxAttribItem 999 { 1000 $$ = $2; 1001 } 1002 | FRAGMENT fragAttribItem 1003 { 1004 $$ = $2; 1005 } 1006 ; 1007 1008vtxAttribItem: POSITION 1009 { 1010 $$ = VERT_ATTRIB_POS; 1011 } 1012 | NORMAL 1013 { 1014 $$ = VERT_ATTRIB_NORMAL; 1015 } 1016 | COLOR optColorType 1017 { 1018 $$ = VERT_ATTRIB_COLOR0 + $2; 1019 } 1020 | FOGCOORD 1021 { 1022 $$ = VERT_ATTRIB_FOG; 1023 } 1024 | TEXCOORD optTexCoordUnitNum 1025 { 1026 $$ = VERT_ATTRIB_TEX0 + $2; 1027 } 1028 | MATRIXINDEX '[' vtxWeightNum ']' 1029 { 1030 yyerror(& @1, state, "GL_ARB_matrix_palette not supported"); 1031 YYERROR; 1032 } 1033 | VTXATTRIB '[' vtxAttribNum ']' 1034 { 1035 $$ = VERT_ATTRIB_GENERIC0 + $3; 1036 } 1037 ; 1038 1039vtxAttribNum: INTEGER 1040 { 1041 if ((unsigned) $1 >= state->limits->MaxAttribs) { 1042 yyerror(& @1, state, "invalid vertex attribute reference"); 1043 YYERROR; 1044 } 1045 1046 $$ = $1; 1047 } 1048 ; 1049 1050vtxWeightNum: INTEGER; 1051 1052fragAttribItem: POSITION 1053 { 1054 $$ = VARYING_SLOT_POS; 1055 } 1056 | COLOR optColorType 1057 { 1058 $$ = VARYING_SLOT_COL0 + $2; 1059 } 1060 | FOGCOORD 1061 { 1062 $$ = VARYING_SLOT_FOGC; 1063 } 1064 | TEXCOORD optTexCoordUnitNum 1065 { 1066 $$ = VARYING_SLOT_TEX0 + $2; 1067 } 1068 ; 1069 1070PARAM_statement: PARAM_singleStmt | PARAM_multipleStmt; 1071 1072PARAM_singleStmt: PARAM IDENTIFIER paramSingleInit 1073 { 1074 struct asm_symbol *const s = 1075 declare_variable(state, $2, at_param, & @2); 1076 1077 if (s == NULL) { 1078 free($2); 1079 YYERROR; 1080 } else { 1081 s->param_binding_type = $3.param_binding_type; 1082 s->param_binding_begin = $3.param_binding_begin; 1083 s->param_binding_length = $3.param_binding_length; 1084 s->param_binding_swizzle = $3.param_binding_swizzle; 1085 s->param_is_array = 0; 1086 } 1087 } 1088 ; 1089 1090PARAM_multipleStmt: PARAM IDENTIFIER '[' optArraySize ']' paramMultipleInit 1091 { 1092 if (($4 != 0) && ((unsigned) $4 != $6.param_binding_length)) { 1093 free($2); 1094 yyerror(& @4, state, 1095 "parameter array size and number of bindings must match"); 1096 YYERROR; 1097 } else { 1098 struct asm_symbol *const s = 1099 declare_variable(state, $2, $6.type, & @2); 1100 1101 if (s == NULL) { 1102 free($2); 1103 YYERROR; 1104 } else { 1105 s->param_binding_type = $6.param_binding_type; 1106 s->param_binding_begin = $6.param_binding_begin; 1107 s->param_binding_length = $6.param_binding_length; 1108 s->param_binding_swizzle = SWIZZLE_XYZW; 1109 s->param_is_array = 1; 1110 } 1111 } 1112 } 1113 ; 1114 1115optArraySize: 1116 { 1117 $$ = 0; 1118 } 1119 | INTEGER 1120 { 1121 if (($1 < 1) || ((unsigned) $1 > state->limits->MaxParameters)) { 1122 char msg[100]; 1123 _mesa_snprintf(msg, sizeof(msg), 1124 "invalid parameter array size (size=%d max=%u)", 1125 $1, state->limits->MaxParameters); 1126 yyerror(& @1, state, msg); 1127 YYERROR; 1128 } else { 1129 $$ = $1; 1130 } 1131 } 1132 ; 1133 1134paramSingleInit: '=' paramSingleItemDecl 1135 { 1136 $$ = $2; 1137 } 1138 ; 1139 1140paramMultipleInit: '=' '{' paramMultInitList '}' 1141 { 1142 $$ = $3; 1143 } 1144 ; 1145 1146paramMultInitList: paramMultipleItem 1147 | paramMultInitList ',' paramMultipleItem 1148 { 1149 $1.param_binding_length += $3.param_binding_length; 1150 $$ = $1; 1151 } 1152 ; 1153 1154paramSingleItemDecl: stateSingleItem 1155 { 1156 memset(& $$, 0, sizeof($$)); 1157 $$.param_binding_begin = ~0; 1158 initialize_symbol_from_state(state->prog, & $$, $1); 1159 } 1160 | programSingleItem 1161 { 1162 memset(& $$, 0, sizeof($$)); 1163 $$.param_binding_begin = ~0; 1164 initialize_symbol_from_param(state->prog, & $$, $1); 1165 } 1166 | paramConstDecl 1167 { 1168 memset(& $$, 0, sizeof($$)); 1169 $$.param_binding_begin = ~0; 1170 initialize_symbol_from_const(state->prog, & $$, & $1, GL_TRUE); 1171 } 1172 ; 1173 1174paramSingleItemUse: stateSingleItem 1175 { 1176 memset(& $$, 0, sizeof($$)); 1177 $$.param_binding_begin = ~0; 1178 initialize_symbol_from_state(state->prog, & $$, $1); 1179 } 1180 | programSingleItem 1181 { 1182 memset(& $$, 0, sizeof($$)); 1183 $$.param_binding_begin = ~0; 1184 initialize_symbol_from_param(state->prog, & $$, $1); 1185 } 1186 | paramConstUse 1187 { 1188 memset(& $$, 0, sizeof($$)); 1189 $$.param_binding_begin = ~0; 1190 initialize_symbol_from_const(state->prog, & $$, & $1, GL_TRUE); 1191 } 1192 ; 1193 1194paramMultipleItem: stateMultipleItem 1195 { 1196 memset(& $$, 0, sizeof($$)); 1197 $$.param_binding_begin = ~0; 1198 initialize_symbol_from_state(state->prog, & $$, $1); 1199 } 1200 | programMultipleItem 1201 { 1202 memset(& $$, 0, sizeof($$)); 1203 $$.param_binding_begin = ~0; 1204 initialize_symbol_from_param(state->prog, & $$, $1); 1205 } 1206 | paramConstDecl 1207 { 1208 memset(& $$, 0, sizeof($$)); 1209 $$.param_binding_begin = ~0; 1210 initialize_symbol_from_const(state->prog, & $$, & $1, GL_FALSE); 1211 } 1212 ; 1213 1214stateMultipleItem: stateSingleItem { memcpy($$, $1, sizeof($$)); } 1215 | STATE stateMatrixRows { memcpy($$, $2, sizeof($$)); } 1216 ; 1217 1218stateSingleItem: STATE stateMaterialItem { memcpy($$, $2, sizeof($$)); } 1219 | STATE stateLightItem { memcpy($$, $2, sizeof($$)); } 1220 | STATE stateLightModelItem { memcpy($$, $2, sizeof($$)); } 1221 | STATE stateLightProdItem { memcpy($$, $2, sizeof($$)); } 1222 | STATE stateTexGenItem { memcpy($$, $2, sizeof($$)); } 1223 | STATE stateTexEnvItem { memcpy($$, $2, sizeof($$)); } 1224 | STATE stateFogItem { memcpy($$, $2, sizeof($$)); } 1225 | STATE stateClipPlaneItem { memcpy($$, $2, sizeof($$)); } 1226 | STATE statePointItem { memcpy($$, $2, sizeof($$)); } 1227 | STATE stateMatrixRow { memcpy($$, $2, sizeof($$)); } 1228 | STATE stateDepthItem { memcpy($$, $2, sizeof($$)); } 1229 ; 1230 1231stateMaterialItem: MATERIAL optFaceType stateMatProperty 1232 { 1233 memset($$, 0, sizeof($$)); 1234 $$[0] = STATE_MATERIAL; 1235 $$[1] = $2; 1236 $$[2] = $3; 1237 } 1238 ; 1239 1240stateMatProperty: ambDiffSpecProperty 1241 { 1242 $$ = $1; 1243 } 1244 | EMISSION 1245 { 1246 $$ = STATE_EMISSION; 1247 } 1248 | SHININESS 1249 { 1250 $$ = STATE_SHININESS; 1251 } 1252 ; 1253 1254stateLightItem: LIGHT '[' stateLightNumber ']' stateLightProperty 1255 { 1256 memset($$, 0, sizeof($$)); 1257 $$[0] = STATE_LIGHT; 1258 $$[1] = $3; 1259 $$[2] = $5; 1260 } 1261 ; 1262 1263stateLightProperty: ambDiffSpecProperty 1264 { 1265 $$ = $1; 1266 } 1267 | POSITION 1268 { 1269 $$ = STATE_POSITION; 1270 } 1271 | ATTENUATION 1272 { 1273 if (!state->ctx->Extensions.EXT_point_parameters) { 1274 yyerror(& @1, state, "GL_ARB_point_parameters not supported"); 1275 YYERROR; 1276 } 1277 1278 $$ = STATE_ATTENUATION; 1279 } 1280 | SPOT stateSpotProperty 1281 { 1282 $$ = $2; 1283 } 1284 | HALF 1285 { 1286 $$ = STATE_HALF_VECTOR; 1287 } 1288 ; 1289 1290stateSpotProperty: DIRECTION 1291 { 1292 $$ = STATE_SPOT_DIRECTION; 1293 } 1294 ; 1295 1296stateLightModelItem: LIGHTMODEL stateLModProperty 1297 { 1298 $$[0] = $2[0]; 1299 $$[1] = $2[1]; 1300 } 1301 ; 1302 1303stateLModProperty: AMBIENT 1304 { 1305 memset($$, 0, sizeof($$)); 1306 $$[0] = STATE_LIGHTMODEL_AMBIENT; 1307 } 1308 | optFaceType SCENECOLOR 1309 { 1310 memset($$, 0, sizeof($$)); 1311 $$[0] = STATE_LIGHTMODEL_SCENECOLOR; 1312 $$[1] = $1; 1313 } 1314 ; 1315 1316stateLightProdItem: LIGHTPROD '[' stateLightNumber ']' optFaceType stateLProdProperty 1317 { 1318 memset($$, 0, sizeof($$)); 1319 $$[0] = STATE_LIGHTPROD; 1320 $$[1] = $3; 1321 $$[2] = $5; 1322 $$[3] = $6; 1323 } 1324 ; 1325 1326stateLProdProperty: ambDiffSpecProperty; 1327 1328stateTexEnvItem: TEXENV optLegacyTexUnitNum stateTexEnvProperty 1329 { 1330 memset($$, 0, sizeof($$)); 1331 $$[0] = $3; 1332 $$[1] = $2; 1333 } 1334 ; 1335 1336stateTexEnvProperty: COLOR 1337 { 1338 $$ = STATE_TEXENV_COLOR; 1339 } 1340 ; 1341 1342ambDiffSpecProperty: AMBIENT 1343 { 1344 $$ = STATE_AMBIENT; 1345 } 1346 | DIFFUSE 1347 { 1348 $$ = STATE_DIFFUSE; 1349 } 1350 | SPECULAR 1351 { 1352 $$ = STATE_SPECULAR; 1353 } 1354 ; 1355 1356stateLightNumber: INTEGER 1357 { 1358 if ((unsigned) $1 >= state->MaxLights) { 1359 yyerror(& @1, state, "invalid light selector"); 1360 YYERROR; 1361 } 1362 1363 $$ = $1; 1364 } 1365 ; 1366 1367stateTexGenItem: TEXGEN optTexCoordUnitNum stateTexGenType stateTexGenCoord 1368 { 1369 memset($$, 0, sizeof($$)); 1370 $$[0] = STATE_TEXGEN; 1371 $$[1] = $2; 1372 $$[2] = $3 + $4; 1373 } 1374 ; 1375 1376stateTexGenType: EYE 1377 { 1378 $$ = STATE_TEXGEN_EYE_S; 1379 } 1380 | OBJECT 1381 { 1382 $$ = STATE_TEXGEN_OBJECT_S; 1383 } 1384 ; 1385stateTexGenCoord: TEXGEN_S 1386 { 1387 $$ = STATE_TEXGEN_EYE_S - STATE_TEXGEN_EYE_S; 1388 } 1389 | TEXGEN_T 1390 { 1391 $$ = STATE_TEXGEN_EYE_T - STATE_TEXGEN_EYE_S; 1392 } 1393 | TEXGEN_R 1394 { 1395 $$ = STATE_TEXGEN_EYE_R - STATE_TEXGEN_EYE_S; 1396 } 1397 | TEXGEN_Q 1398 { 1399 $$ = STATE_TEXGEN_EYE_Q - STATE_TEXGEN_EYE_S; 1400 } 1401 ; 1402 1403stateFogItem: FOG stateFogProperty 1404 { 1405 memset($$, 0, sizeof($$)); 1406 $$[0] = $2; 1407 } 1408 ; 1409 1410stateFogProperty: COLOR 1411 { 1412 $$ = STATE_FOG_COLOR; 1413 } 1414 | PARAMS 1415 { 1416 $$ = STATE_FOG_PARAMS; 1417 } 1418 ; 1419 1420stateClipPlaneItem: CLIP '[' stateClipPlaneNum ']' PLANE 1421 { 1422 memset($$, 0, sizeof($$)); 1423 $$[0] = STATE_CLIPPLANE; 1424 $$[1] = $3; 1425 } 1426 ; 1427 1428stateClipPlaneNum: INTEGER 1429 { 1430 if ((unsigned) $1 >= state->MaxClipPlanes) { 1431 yyerror(& @1, state, "invalid clip plane selector"); 1432 YYERROR; 1433 } 1434 1435 $$ = $1; 1436 } 1437 ; 1438 1439statePointItem: POINT_TOK statePointProperty 1440 { 1441 memset($$, 0, sizeof($$)); 1442 $$[0] = $2; 1443 } 1444 ; 1445 1446statePointProperty: SIZE_TOK 1447 { 1448 $$ = STATE_POINT_SIZE; 1449 } 1450 | ATTENUATION 1451 { 1452 $$ = STATE_POINT_ATTENUATION; 1453 } 1454 ; 1455 1456stateMatrixRow: stateMatrixItem ROW '[' stateMatrixRowNum ']' 1457 { 1458 $$[0] = $1[0]; 1459 $$[1] = $1[1]; 1460 $$[2] = $4; 1461 $$[3] = $4; 1462 $$[4] = $1[2]; 1463 } 1464 ; 1465 1466stateMatrixRows: stateMatrixItem optMatrixRows 1467 { 1468 $$[0] = $1[0]; 1469 $$[1] = $1[1]; 1470 $$[2] = $2[2]; 1471 $$[3] = $2[3]; 1472 $$[4] = $1[2]; 1473 } 1474 ; 1475 1476optMatrixRows: 1477 { 1478 $$[2] = 0; 1479 $$[3] = 3; 1480 } 1481 | ROW '[' stateMatrixRowNum DOT_DOT stateMatrixRowNum ']' 1482 { 1483 /* It seems logical that the matrix row range specifier would have 1484 * to specify a range or more than one row (i.e., $5 > $3). 1485 * However, the ARB_vertex_program spec says "a program will fail 1486 * to load if <a> is greater than <b>." This means that $3 == $5 1487 * is valid. 1488 */ 1489 if ($3 > $5) { 1490 yyerror(& @3, state, "invalid matrix row range"); 1491 YYERROR; 1492 } 1493 1494 $$[2] = $3; 1495 $$[3] = $5; 1496 } 1497 ; 1498 1499stateMatrixItem: MATRIX stateMatrixName stateOptMatModifier 1500 { 1501 $$[0] = $2[0]; 1502 $$[1] = $2[1]; 1503 $$[2] = $3; 1504 } 1505 ; 1506 1507stateOptMatModifier: 1508 { 1509 $$ = 0; 1510 } 1511 | stateMatModifier 1512 { 1513 $$ = $1; 1514 } 1515 ; 1516 1517stateMatModifier: INVERSE 1518 { 1519 $$ = STATE_MATRIX_INVERSE; 1520 } 1521 | TRANSPOSE 1522 { 1523 $$ = STATE_MATRIX_TRANSPOSE; 1524 } 1525 | INVTRANS 1526 { 1527 $$ = STATE_MATRIX_INVTRANS; 1528 } 1529 ; 1530 1531stateMatrixRowNum: INTEGER 1532 { 1533 if ($1 > 3) { 1534 yyerror(& @1, state, "invalid matrix row reference"); 1535 YYERROR; 1536 } 1537 1538 $$ = $1; 1539 } 1540 ; 1541 1542stateMatrixName: MODELVIEW stateOptModMatNum 1543 { 1544 $$[0] = STATE_MODELVIEW_MATRIX; 1545 $$[1] = $2; 1546 } 1547 | PROJECTION 1548 { 1549 $$[0] = STATE_PROJECTION_MATRIX; 1550 $$[1] = 0; 1551 } 1552 | MVP 1553 { 1554 $$[0] = STATE_MVP_MATRIX; 1555 $$[1] = 0; 1556 } 1557 | TEXTURE optTexCoordUnitNum 1558 { 1559 $$[0] = STATE_TEXTURE_MATRIX; 1560 $$[1] = $2; 1561 } 1562 | PALETTE '[' statePaletteMatNum ']' 1563 { 1564 yyerror(& @1, state, "GL_ARB_matrix_palette not supported"); 1565 YYERROR; 1566 } 1567 | MAT_PROGRAM '[' stateProgramMatNum ']' 1568 { 1569 $$[0] = STATE_PROGRAM_MATRIX; 1570 $$[1] = $3; 1571 } 1572 ; 1573 1574stateOptModMatNum: 1575 { 1576 $$ = 0; 1577 } 1578 | '[' stateModMatNum ']' 1579 { 1580 $$ = $2; 1581 } 1582 ; 1583stateModMatNum: INTEGER 1584 { 1585 /* Since GL_ARB_vertex_blend isn't supported, only modelview matrix 1586 * zero is valid. 1587 */ 1588 if ($1 != 0) { 1589 yyerror(& @1, state, "invalid modelview matrix index"); 1590 YYERROR; 1591 } 1592 1593 $$ = $1; 1594 } 1595 ; 1596statePaletteMatNum: INTEGER 1597 { 1598 /* Since GL_ARB_matrix_palette isn't supported, just let any value 1599 * through here. The error will be generated later. 1600 */ 1601 $$ = $1; 1602 } 1603 ; 1604stateProgramMatNum: INTEGER 1605 { 1606 if ((unsigned) $1 >= state->MaxProgramMatrices) { 1607 yyerror(& @1, state, "invalid program matrix selector"); 1608 YYERROR; 1609 } 1610 1611 $$ = $1; 1612 } 1613 ; 1614 1615stateDepthItem: DEPTH RANGE 1616 { 1617 memset($$, 0, sizeof($$)); 1618 $$[0] = STATE_DEPTH_RANGE; 1619 } 1620 ; 1621 1622 1623programSingleItem: progEnvParam | progLocalParam; 1624 1625programMultipleItem: progEnvParams | progLocalParams; 1626 1627progEnvParams: PROGRAM ENV '[' progEnvParamNums ']' 1628 { 1629 memset($$, 0, sizeof($$)); 1630 $$[0] = state->state_param_enum; 1631 $$[1] = STATE_ENV; 1632 $$[2] = $4[0]; 1633 $$[3] = $4[1]; 1634 } 1635 ; 1636 1637progEnvParamNums: progEnvParamNum 1638 { 1639 $$[0] = $1; 1640 $$[1] = $1; 1641 } 1642 | progEnvParamNum DOT_DOT progEnvParamNum 1643 { 1644 $$[0] = $1; 1645 $$[1] = $3; 1646 } 1647 ; 1648 1649progEnvParam: PROGRAM ENV '[' progEnvParamNum ']' 1650 { 1651 memset($$, 0, sizeof($$)); 1652 $$[0] = state->state_param_enum; 1653 $$[1] = STATE_ENV; 1654 $$[2] = $4; 1655 $$[3] = $4; 1656 } 1657 ; 1658 1659progLocalParams: PROGRAM LOCAL '[' progLocalParamNums ']' 1660 { 1661 memset($$, 0, sizeof($$)); 1662 $$[0] = state->state_param_enum; 1663 $$[1] = STATE_LOCAL; 1664 $$[2] = $4[0]; 1665 $$[3] = $4[1]; 1666 } 1667 1668progLocalParamNums: progLocalParamNum 1669 { 1670 $$[0] = $1; 1671 $$[1] = $1; 1672 } 1673 | progLocalParamNum DOT_DOT progLocalParamNum 1674 { 1675 $$[0] = $1; 1676 $$[1] = $3; 1677 } 1678 ; 1679 1680progLocalParam: PROGRAM LOCAL '[' progLocalParamNum ']' 1681 { 1682 memset($$, 0, sizeof($$)); 1683 $$[0] = state->state_param_enum; 1684 $$[1] = STATE_LOCAL; 1685 $$[2] = $4; 1686 $$[3] = $4; 1687 } 1688 ; 1689 1690progEnvParamNum: INTEGER 1691 { 1692 if ((unsigned) $1 >= state->limits->MaxEnvParams) { 1693 yyerror(& @1, state, "invalid environment parameter reference"); 1694 YYERROR; 1695 } 1696 $$ = $1; 1697 } 1698 ; 1699 1700progLocalParamNum: INTEGER 1701 { 1702 if ((unsigned) $1 >= state->limits->MaxLocalParams) { 1703 yyerror(& @1, state, "invalid local parameter reference"); 1704 YYERROR; 1705 } 1706 $$ = $1; 1707 } 1708 ; 1709 1710 1711 1712paramConstDecl: paramConstScalarDecl | paramConstVector; 1713paramConstUse: paramConstScalarUse | paramConstVector; 1714 1715paramConstScalarDecl: signedFloatConstant 1716 { 1717 $$.count = 4; 1718 $$.data[0].f = $1; 1719 $$.data[1].f = $1; 1720 $$.data[2].f = $1; 1721 $$.data[3].f = $1; 1722 } 1723 ; 1724 1725paramConstScalarUse: REAL 1726 { 1727 $$.count = 1; 1728 $$.data[0].f = $1; 1729 $$.data[1].f = $1; 1730 $$.data[2].f = $1; 1731 $$.data[3].f = $1; 1732 } 1733 | INTEGER 1734 { 1735 $$.count = 1; 1736 $$.data[0].f = (float) $1; 1737 $$.data[1].f = (float) $1; 1738 $$.data[2].f = (float) $1; 1739 $$.data[3].f = (float) $1; 1740 } 1741 ; 1742 1743paramConstVector: '{' signedFloatConstant '}' 1744 { 1745 $$.count = 4; 1746 $$.data[0].f = $2; 1747 $$.data[1].f = 0.0f; 1748 $$.data[2].f = 0.0f; 1749 $$.data[3].f = 1.0f; 1750 } 1751 | '{' signedFloatConstant ',' signedFloatConstant '}' 1752 { 1753 $$.count = 4; 1754 $$.data[0].f = $2; 1755 $$.data[1].f = $4; 1756 $$.data[2].f = 0.0f; 1757 $$.data[3].f = 1.0f; 1758 } 1759 | '{' signedFloatConstant ',' signedFloatConstant ',' 1760 signedFloatConstant '}' 1761 { 1762 $$.count = 4; 1763 $$.data[0].f = $2; 1764 $$.data[1].f = $4; 1765 $$.data[2].f = $6; 1766 $$.data[3].f = 1.0f; 1767 } 1768 | '{' signedFloatConstant ',' signedFloatConstant ',' 1769 signedFloatConstant ',' signedFloatConstant '}' 1770 { 1771 $$.count = 4; 1772 $$.data[0].f = $2; 1773 $$.data[1].f = $4; 1774 $$.data[2].f = $6; 1775 $$.data[3].f = $8; 1776 } 1777 ; 1778 1779signedFloatConstant: optionalSign REAL 1780 { 1781 $$ = ($1) ? -$2 : $2; 1782 } 1783 | optionalSign INTEGER 1784 { 1785 $$ = (float)(($1) ? -$2 : $2); 1786 } 1787 ; 1788 1789optionalSign: '+' { $$ = FALSE; } 1790 | '-' { $$ = TRUE; } 1791 | { $$ = FALSE; } 1792 ; 1793 1794TEMP_statement: TEMP { $<integer>$ = $1; } varNameList 1795 ; 1796 1797ADDRESS_statement: ADDRESS { $<integer>$ = $1; } varNameList 1798 ; 1799 1800varNameList: varNameList ',' IDENTIFIER 1801 { 1802 if (!declare_variable(state, $3, $<integer>0, & @3)) { 1803 free($3); 1804 YYERROR; 1805 } 1806 } 1807 | IDENTIFIER 1808 { 1809 if (!declare_variable(state, $1, $<integer>0, & @1)) { 1810 free($1); 1811 YYERROR; 1812 } 1813 } 1814 ; 1815 1816OUTPUT_statement: OUTPUT IDENTIFIER '=' resultBinding 1817 { 1818 struct asm_symbol *const s = 1819 declare_variable(state, $2, at_output, & @2); 1820 1821 if (s == NULL) { 1822 free($2); 1823 YYERROR; 1824 } else { 1825 s->output_binding = $4; 1826 } 1827 } 1828 ; 1829 1830resultBinding: RESULT POSITION 1831 { 1832 if (state->mode == ARB_vertex) { 1833 $$ = VARYING_SLOT_POS; 1834 } else { 1835 yyerror(& @2, state, "invalid program result name"); 1836 YYERROR; 1837 } 1838 } 1839 | RESULT FOGCOORD 1840 { 1841 if (state->mode == ARB_vertex) { 1842 $$ = VARYING_SLOT_FOGC; 1843 } else { 1844 yyerror(& @2, state, "invalid program result name"); 1845 YYERROR; 1846 } 1847 } 1848 | RESULT resultColBinding 1849 { 1850 $$ = $2; 1851 } 1852 | RESULT POINTSIZE 1853 { 1854 if (state->mode == ARB_vertex) { 1855 $$ = VARYING_SLOT_PSIZ; 1856 } else { 1857 yyerror(& @2, state, "invalid program result name"); 1858 YYERROR; 1859 } 1860 } 1861 | RESULT TEXCOORD optTexCoordUnitNum 1862 { 1863 if (state->mode == ARB_vertex) { 1864 $$ = VARYING_SLOT_TEX0 + $3; 1865 } else { 1866 yyerror(& @2, state, "invalid program result name"); 1867 YYERROR; 1868 } 1869 } 1870 | RESULT DEPTH 1871 { 1872 if (state->mode == ARB_fragment) { 1873 $$ = FRAG_RESULT_DEPTH; 1874 } else { 1875 yyerror(& @2, state, "invalid program result name"); 1876 YYERROR; 1877 } 1878 } 1879 ; 1880 1881resultColBinding: COLOR optResultFaceType optResultColorType 1882 { 1883 $$ = $2 + $3; 1884 } 1885 ; 1886 1887optResultFaceType: 1888 { 1889 if (state->mode == ARB_vertex) { 1890 $$ = VARYING_SLOT_COL0; 1891 } else { 1892 if (state->option.DrawBuffers) 1893 $$ = FRAG_RESULT_DATA0; 1894 else 1895 $$ = FRAG_RESULT_COLOR; 1896 } 1897 } 1898 | '[' INTEGER ']' 1899 { 1900 if (state->mode == ARB_vertex) { 1901 yyerror(& @1, state, "invalid program result name"); 1902 YYERROR; 1903 } else { 1904 if (!state->option.DrawBuffers) { 1905 /* From the ARB_draw_buffers spec (same text exists 1906 * for ATI_draw_buffers): 1907 * 1908 * If this option is not specified, a fragment 1909 * program that attempts to bind 1910 * "result.color[n]" will fail to load, and only 1911 * "result.color" will be allowed. 1912 */ 1913 yyerror(& @1, state, 1914 "result.color[] used without " 1915 "`OPTION ARB_draw_buffers' or " 1916 "`OPTION ATI_draw_buffers'"); 1917 YYERROR; 1918 } else if ($2 >= state->MaxDrawBuffers) { 1919 yyerror(& @1, state, 1920 "result.color[] exceeds MAX_DRAW_BUFFERS_ARB"); 1921 YYERROR; 1922 } 1923 $$ = FRAG_RESULT_DATA0 + $2; 1924 } 1925 } 1926 | FRONT 1927 { 1928 if (state->mode == ARB_vertex) { 1929 $$ = VARYING_SLOT_COL0; 1930 } else { 1931 yyerror(& @1, state, "invalid program result name"); 1932 YYERROR; 1933 } 1934 } 1935 | BACK 1936 { 1937 if (state->mode == ARB_vertex) { 1938 $$ = VARYING_SLOT_BFC0; 1939 } else { 1940 yyerror(& @1, state, "invalid program result name"); 1941 YYERROR; 1942 } 1943 } 1944 ; 1945 1946optResultColorType: 1947 { 1948 $$ = 0; 1949 } 1950 | PRIMARY 1951 { 1952 if (state->mode == ARB_vertex) { 1953 $$ = 0; 1954 } else { 1955 yyerror(& @1, state, "invalid program result name"); 1956 YYERROR; 1957 } 1958 } 1959 | SECONDARY 1960 { 1961 if (state->mode == ARB_vertex) { 1962 $$ = 1; 1963 } else { 1964 yyerror(& @1, state, "invalid program result name"); 1965 YYERROR; 1966 } 1967 } 1968 ; 1969 1970optFaceType: { $$ = 0; } 1971 | FRONT { $$ = 0; } 1972 | BACK { $$ = 1; } 1973 ; 1974 1975optColorType: { $$ = 0; } 1976 | PRIMARY { $$ = 0; } 1977 | SECONDARY { $$ = 1; } 1978 ; 1979 1980optTexCoordUnitNum: { $$ = 0; } 1981 | '[' texCoordUnitNum ']' { $$ = $2; } 1982 ; 1983 1984optTexImageUnitNum: { $$ = 0; } 1985 | '[' texImageUnitNum ']' { $$ = $2; } 1986 ; 1987 1988optLegacyTexUnitNum: { $$ = 0; } 1989 | '[' legacyTexUnitNum ']' { $$ = $2; } 1990 ; 1991 1992texCoordUnitNum: INTEGER 1993 { 1994 if ((unsigned) $1 >= state->MaxTextureCoordUnits) { 1995 yyerror(& @1, state, "invalid texture coordinate unit selector"); 1996 YYERROR; 1997 } 1998 1999 $$ = $1; 2000 } 2001 ; 2002 2003texImageUnitNum: INTEGER 2004 { 2005 if ((unsigned) $1 >= state->MaxTextureImageUnits) { 2006 yyerror(& @1, state, "invalid texture image unit selector"); 2007 YYERROR; 2008 } 2009 2010 $$ = $1; 2011 } 2012 ; 2013 2014legacyTexUnitNum: INTEGER 2015 { 2016 if ((unsigned) $1 >= state->MaxTextureUnits) { 2017 yyerror(& @1, state, "invalid texture unit selector"); 2018 YYERROR; 2019 } 2020 2021 $$ = $1; 2022 } 2023 ; 2024 2025ALIAS_statement: ALIAS IDENTIFIER '=' USED_IDENTIFIER 2026 { 2027 struct asm_symbol *exist = (struct asm_symbol *) 2028 _mesa_symbol_table_find_symbol(state->st, $2); 2029 struct asm_symbol *target = (struct asm_symbol *) 2030 _mesa_symbol_table_find_symbol(state->st, $4); 2031 2032 free($4); 2033 2034 if (exist != NULL) { 2035 char m[1000]; 2036 _mesa_snprintf(m, sizeof(m), "redeclared identifier: %s", $2); 2037 free($2); 2038 yyerror(& @2, state, m); 2039 YYERROR; 2040 } else if (target == NULL) { 2041 free($2); 2042 yyerror(& @4, state, 2043 "undefined variable binding in ALIAS statement"); 2044 YYERROR; 2045 } else { 2046 _mesa_symbol_table_add_symbol(state->st, $2, target); 2047 } 2048 } 2049 ; 2050 2051string: IDENTIFIER 2052 | USED_IDENTIFIER 2053 ; 2054 2055%% 2056 2057void 2058asm_instruction_set_operands(struct asm_instruction *inst, 2059 const struct prog_dst_register *dst, 2060 const struct asm_src_register *src0, 2061 const struct asm_src_register *src1, 2062 const struct asm_src_register *src2) 2063{ 2064 /* In the core ARB extensions only the KIL instruction doesn't have a 2065 * destination register. 2066 */ 2067 if (dst == NULL) { 2068 init_dst_reg(& inst->Base.DstReg); 2069 } else { 2070 inst->Base.DstReg = *dst; 2071 } 2072 2073 if (src0 != NULL) { 2074 inst->Base.SrcReg[0] = src0->Base; 2075 inst->SrcReg[0] = *src0; 2076 } else { 2077 init_src_reg(& inst->SrcReg[0]); 2078 } 2079 2080 if (src1 != NULL) { 2081 inst->Base.SrcReg[1] = src1->Base; 2082 inst->SrcReg[1] = *src1; 2083 } else { 2084 init_src_reg(& inst->SrcReg[1]); 2085 } 2086 2087 if (src2 != NULL) { 2088 inst->Base.SrcReg[2] = src2->Base; 2089 inst->SrcReg[2] = *src2; 2090 } else { 2091 init_src_reg(& inst->SrcReg[2]); 2092 } 2093} 2094 2095 2096struct asm_instruction * 2097asm_instruction_ctor(enum prog_opcode op, 2098 const struct prog_dst_register *dst, 2099 const struct asm_src_register *src0, 2100 const struct asm_src_register *src1, 2101 const struct asm_src_register *src2) 2102{ 2103 struct asm_instruction *inst = CALLOC_STRUCT(asm_instruction); 2104 2105 if (inst) { 2106 _mesa_init_instructions(& inst->Base, 1); 2107 inst->Base.Opcode = op; 2108 2109 asm_instruction_set_operands(inst, dst, src0, src1, src2); 2110 } 2111 2112 return inst; 2113} 2114 2115 2116struct asm_instruction * 2117asm_instruction_copy_ctor(const struct prog_instruction *base, 2118 const struct prog_dst_register *dst, 2119 const struct asm_src_register *src0, 2120 const struct asm_src_register *src1, 2121 const struct asm_src_register *src2) 2122{ 2123 struct asm_instruction *inst = CALLOC_STRUCT(asm_instruction); 2124 2125 if (inst) { 2126 _mesa_init_instructions(& inst->Base, 1); 2127 inst->Base.Opcode = base->Opcode; 2128 inst->Base.Saturate = base->Saturate; 2129 2130 asm_instruction_set_operands(inst, dst, src0, src1, src2); 2131 } 2132 2133 return inst; 2134} 2135 2136 2137void 2138init_dst_reg(struct prog_dst_register *r) 2139{ 2140 memset(r, 0, sizeof(*r)); 2141 r->File = PROGRAM_UNDEFINED; 2142 r->WriteMask = WRITEMASK_XYZW; 2143} 2144 2145 2146/** Like init_dst_reg() but set the File and Index fields. */ 2147void 2148set_dst_reg(struct prog_dst_register *r, gl_register_file file, GLint index) 2149{ 2150 const GLint maxIndex = 1 << INST_INDEX_BITS; 2151 const GLint minIndex = 0; 2152 assert(index >= minIndex); 2153 (void) minIndex; 2154 assert(index <= maxIndex); 2155 (void) maxIndex; 2156 assert(file == PROGRAM_TEMPORARY || 2157 file == PROGRAM_ADDRESS || 2158 file == PROGRAM_OUTPUT); 2159 memset(r, 0, sizeof(*r)); 2160 r->File = file; 2161 r->Index = index; 2162 r->WriteMask = WRITEMASK_XYZW; 2163} 2164 2165 2166void 2167init_src_reg(struct asm_src_register *r) 2168{ 2169 memset(r, 0, sizeof(*r)); 2170 r->Base.File = PROGRAM_UNDEFINED; 2171 r->Base.Swizzle = SWIZZLE_NOOP; 2172 r->Symbol = NULL; 2173} 2174 2175 2176/** Like init_src_reg() but set the File and Index fields. 2177 * \return GL_TRUE if a valid src register, GL_FALSE otherwise 2178 */ 2179void 2180set_src_reg(struct asm_src_register *r, gl_register_file file, GLint index) 2181{ 2182 set_src_reg_swz(r, file, index, SWIZZLE_XYZW); 2183} 2184 2185 2186void 2187set_src_reg_swz(struct asm_src_register *r, gl_register_file file, GLint index, 2188 GLuint swizzle) 2189{ 2190 const GLint maxIndex = (1 << INST_INDEX_BITS) - 1; 2191 const GLint minIndex = -(1 << INST_INDEX_BITS); 2192 assert(file < PROGRAM_FILE_MAX); 2193 assert(index >= minIndex); 2194 (void) minIndex; 2195 assert(index <= maxIndex); 2196 (void) maxIndex; 2197 memset(r, 0, sizeof(*r)); 2198 r->Base.File = file; 2199 r->Base.Index = index; 2200 r->Base.Swizzle = swizzle; 2201 r->Symbol = NULL; 2202} 2203 2204 2205/** 2206 * Validate the set of inputs used by a program 2207 * 2208 * Validates that legal sets of inputs are used by the program. In this case 2209 * "used" included both reading the input or binding the input to a name using 2210 * the \c ATTRIB command. 2211 * 2212 * \return 2213 * \c TRUE if the combination of inputs used is valid, \c FALSE otherwise. 2214 */ 2215int 2216validate_inputs(struct YYLTYPE *locp, struct asm_parser_state *state) 2217{ 2218 const GLbitfield64 inputs = state->prog->info.inputs_read | state->InputsBound; 2219 GLbitfield ff_inputs = 0; 2220 2221 /* Since Mesa internal attribute indices are different from 2222 * how NV_vertex_program defines attribute aliasing, we have to construct 2223 * a separate usage mask based on how the aliasing is defined. 2224 * 2225 * Note that attribute aliasing is optional if NV_vertex_program is 2226 * unsupported. 2227 */ 2228 if (inputs & VERT_BIT_POS) 2229 ff_inputs |= 1 << 0; 2230 if (inputs & VERT_BIT_NORMAL) 2231 ff_inputs |= 1 << 2; 2232 if (inputs & VERT_BIT_COLOR0) 2233 ff_inputs |= 1 << 3; 2234 if (inputs & VERT_BIT_COLOR1) 2235 ff_inputs |= 1 << 4; 2236 if (inputs & VERT_BIT_FOG) 2237 ff_inputs |= 1 << 5; 2238 2239 ff_inputs |= ((inputs & VERT_BIT_TEX_ALL) >> VERT_ATTRIB_TEX0) << 8; 2240 2241 if ((ff_inputs & (inputs >> VERT_ATTRIB_GENERIC0)) != 0) { 2242 yyerror(locp, state, "illegal use of generic attribute and name attribute"); 2243 return 0; 2244 } 2245 2246 return 1; 2247} 2248 2249 2250struct asm_symbol * 2251declare_variable(struct asm_parser_state *state, char *name, enum asm_type t, 2252 struct YYLTYPE *locp) 2253{ 2254 struct asm_symbol *s = NULL; 2255 struct asm_symbol *exist = (struct asm_symbol *) 2256 _mesa_symbol_table_find_symbol(state->st, name); 2257 2258 2259 if (exist != NULL) { 2260 yyerror(locp, state, "redeclared identifier"); 2261 } else { 2262 s = calloc(1, sizeof(struct asm_symbol)); 2263 s->name = name; 2264 s->type = t; 2265 2266 switch (t) { 2267 case at_temp: 2268 if (state->prog->arb.NumTemporaries >= state->limits->MaxTemps) { 2269 yyerror(locp, state, "too many temporaries declared"); 2270 free(s); 2271 return NULL; 2272 } 2273 2274 s->temp_binding = state->prog->arb.NumTemporaries; 2275 state->prog->arb.NumTemporaries++; 2276 break; 2277 2278 case at_address: 2279 if (state->prog->arb.NumAddressRegs >= 2280 state->limits->MaxAddressRegs) { 2281 yyerror(locp, state, "too many address registers declared"); 2282 free(s); 2283 return NULL; 2284 } 2285 2286 /* FINISHME: Add support for multiple address registers. 2287 */ 2288 state->prog->arb.NumAddressRegs++; 2289 break; 2290 2291 default: 2292 break; 2293 } 2294 2295 _mesa_symbol_table_add_symbol(state->st, s->name, s); 2296 s->next = state->sym; 2297 state->sym = s; 2298 } 2299 2300 return s; 2301} 2302 2303 2304int add_state_reference(struct gl_program_parameter_list *param_list, 2305 const gl_state_index16 tokens[STATE_LENGTH]) 2306{ 2307 const GLuint size = 4; /* XXX fix */ 2308 char *name; 2309 GLint index; 2310 2311 name = _mesa_program_state_string(tokens); 2312 index = _mesa_add_parameter(param_list, PROGRAM_STATE_VAR, name, 2313 size, GL_NONE, NULL, tokens, true); 2314 param_list->StateFlags |= _mesa_program_state_flags(tokens); 2315 2316 /* free name string here since we duplicated it in add_parameter() */ 2317 free(name); 2318 2319 return index; 2320} 2321 2322 2323int 2324initialize_symbol_from_state(struct gl_program *prog, 2325 struct asm_symbol *param_var, 2326 const gl_state_index16 tokens[STATE_LENGTH]) 2327{ 2328 int idx = -1; 2329 gl_state_index16 state_tokens[STATE_LENGTH]; 2330 2331 2332 memcpy(state_tokens, tokens, sizeof(state_tokens)); 2333 2334 param_var->type = at_param; 2335 param_var->param_binding_type = PROGRAM_STATE_VAR; 2336 2337 /* If we are adding a STATE_MATRIX that has multiple rows, we need to 2338 * unroll it and call add_state_reference() for each row 2339 */ 2340 if ((state_tokens[0] == STATE_MODELVIEW_MATRIX || 2341 state_tokens[0] == STATE_PROJECTION_MATRIX || 2342 state_tokens[0] == STATE_MVP_MATRIX || 2343 state_tokens[0] == STATE_TEXTURE_MATRIX || 2344 state_tokens[0] == STATE_PROGRAM_MATRIX) 2345 && (state_tokens[2] != state_tokens[3])) { 2346 int row; 2347 const int first_row = state_tokens[2]; 2348 const int last_row = state_tokens[3]; 2349 2350 for (row = first_row; row <= last_row; row++) { 2351 state_tokens[2] = state_tokens[3] = row; 2352 2353 idx = add_state_reference(prog->Parameters, state_tokens); 2354 if (param_var->param_binding_begin == ~0U) { 2355 param_var->param_binding_begin = idx; 2356 param_var->param_binding_swizzle = SWIZZLE_XYZW; 2357 } 2358 2359 param_var->param_binding_length++; 2360 } 2361 } 2362 else { 2363 idx = add_state_reference(prog->Parameters, state_tokens); 2364 if (param_var->param_binding_begin == ~0U) { 2365 param_var->param_binding_begin = idx; 2366 param_var->param_binding_swizzle = SWIZZLE_XYZW; 2367 } 2368 param_var->param_binding_length++; 2369 } 2370 2371 return idx; 2372} 2373 2374 2375int 2376initialize_symbol_from_param(struct gl_program *prog, 2377 struct asm_symbol *param_var, 2378 const gl_state_index16 tokens[STATE_LENGTH]) 2379{ 2380 int idx = -1; 2381 gl_state_index16 state_tokens[STATE_LENGTH]; 2382 2383 2384 memcpy(state_tokens, tokens, sizeof(state_tokens)); 2385 2386 assert((state_tokens[0] == STATE_VERTEX_PROGRAM) 2387 || (state_tokens[0] == STATE_FRAGMENT_PROGRAM)); 2388 assert((state_tokens[1] == STATE_ENV) 2389 || (state_tokens[1] == STATE_LOCAL)); 2390 2391 /* 2392 * The param type is STATE_VAR. The program parameter entry will 2393 * effectively be a pointer into the LOCAL or ENV parameter array. 2394 */ 2395 param_var->type = at_param; 2396 param_var->param_binding_type = PROGRAM_STATE_VAR; 2397 2398 /* If we are adding a STATE_ENV or STATE_LOCAL that has multiple elements, 2399 * we need to unroll it and call add_state_reference() for each row 2400 */ 2401 if (state_tokens[2] != state_tokens[3]) { 2402 int row; 2403 const int first_row = state_tokens[2]; 2404 const int last_row = state_tokens[3]; 2405 2406 for (row = first_row; row <= last_row; row++) { 2407 state_tokens[2] = state_tokens[3] = row; 2408 2409 idx = add_state_reference(prog->Parameters, state_tokens); 2410 if (param_var->param_binding_begin == ~0U) { 2411 param_var->param_binding_begin = idx; 2412 param_var->param_binding_swizzle = SWIZZLE_XYZW; 2413 } 2414 param_var->param_binding_length++; 2415 } 2416 } 2417 else { 2418 idx = add_state_reference(prog->Parameters, state_tokens); 2419 if (param_var->param_binding_begin == ~0U) { 2420 param_var->param_binding_begin = idx; 2421 param_var->param_binding_swizzle = SWIZZLE_XYZW; 2422 } 2423 param_var->param_binding_length++; 2424 } 2425 2426 return idx; 2427} 2428 2429 2430/** 2431 * Put a float/vector constant/literal into the parameter list. 2432 * \param param_var returns info about the parameter/constant's location, 2433 * binding, type, etc. 2434 * \param vec the vector/constant to add 2435 * \param allowSwizzle if true, try to consolidate constants which only differ 2436 * by a swizzle. We don't want to do this when building 2437 * arrays of constants that may be indexed indirectly. 2438 * \return index of the constant in the parameter list. 2439 */ 2440int 2441initialize_symbol_from_const(struct gl_program *prog, 2442 struct asm_symbol *param_var, 2443 const struct asm_vector *vec, 2444 GLboolean allowSwizzle) 2445{ 2446 unsigned swizzle; 2447 const int idx = _mesa_add_unnamed_constant(prog->Parameters, 2448 vec->data, vec->count, 2449 allowSwizzle ? &swizzle : NULL); 2450 2451 param_var->type = at_param; 2452 param_var->param_binding_type = PROGRAM_CONSTANT; 2453 2454 if (param_var->param_binding_begin == ~0U) { 2455 param_var->param_binding_begin = idx; 2456 param_var->param_binding_swizzle = allowSwizzle ? swizzle : SWIZZLE_XYZW; 2457 } 2458 param_var->param_binding_length++; 2459 2460 return idx; 2461} 2462 2463 2464char * 2465make_error_string(const char *fmt, ...) 2466{ 2467 int length; 2468 char *str; 2469 va_list args; 2470 2471 2472 /* Call vsnprintf once to determine how large the final string is. Call it 2473 * again to do the actual formatting. from the vsnprintf manual page: 2474 * 2475 * Upon successful return, these functions return the number of 2476 * characters printed (not including the trailing '\0' used to end 2477 * output to strings). 2478 */ 2479 va_start(args, fmt); 2480 length = 1 + vsnprintf(NULL, 0, fmt, args); 2481 va_end(args); 2482 2483 str = malloc(length); 2484 if (str) { 2485 va_start(args, fmt); 2486 vsnprintf(str, length, fmt, args); 2487 va_end(args); 2488 } 2489 2490 return str; 2491} 2492 2493 2494void 2495yyerror(YYLTYPE *locp, struct asm_parser_state *state, const char *s) 2496{ 2497 char *err_str; 2498 2499 2500 err_str = make_error_string("glProgramStringARB(%s)\n", s); 2501 if (err_str) { 2502 _mesa_error(state->ctx, GL_INVALID_OPERATION, "%s", err_str); 2503 free(err_str); 2504 } 2505 2506 err_str = make_error_string("line %u, char %u: error: %s\n", 2507 locp->first_line, locp->first_column, s); 2508 _mesa_set_program_error(state->ctx, locp->position, err_str); 2509 2510 if (err_str) { 2511 free(err_str); 2512 } 2513} 2514 2515 2516GLboolean 2517_mesa_parse_arb_program(struct gl_context *ctx, GLenum target, const GLubyte *str, 2518 GLsizei len, struct asm_parser_state *state) 2519{ 2520 struct asm_instruction *inst; 2521 unsigned i; 2522 GLubyte *strz; 2523 GLboolean result = GL_FALSE; 2524 void *temp; 2525 struct asm_symbol *sym; 2526 2527 state->ctx = ctx; 2528 state->prog->Target = target; 2529 state->prog->Parameters = _mesa_new_parameter_list(); 2530 2531 /* Make a copy of the program string and force it to be NUL-terminated. 2532 */ 2533 strz = (GLubyte *) ralloc_size(state->mem_ctx, len + 1); 2534 if (strz == NULL) { 2535 _mesa_error(ctx, GL_OUT_OF_MEMORY, "glProgramStringARB"); 2536 return GL_FALSE; 2537 } 2538 memcpy (strz, str, len); 2539 strz[len] = '\0'; 2540 2541 state->prog->String = strz; 2542 2543 state->st = _mesa_symbol_table_ctor(); 2544 2545 state->limits = (target == GL_VERTEX_PROGRAM_ARB) 2546 ? & ctx->Const.Program[MESA_SHADER_VERTEX] 2547 : & ctx->Const.Program[MESA_SHADER_FRAGMENT]; 2548 2549 state->MaxTextureImageUnits = ctx->Const.Program[MESA_SHADER_FRAGMENT].MaxTextureImageUnits; 2550 state->MaxTextureCoordUnits = ctx->Const.MaxTextureCoordUnits; 2551 state->MaxTextureUnits = ctx->Const.MaxTextureUnits; 2552 state->MaxClipPlanes = ctx->Const.MaxClipPlanes; 2553 state->MaxLights = ctx->Const.MaxLights; 2554 state->MaxProgramMatrices = ctx->Const.MaxProgramMatrices; 2555 state->MaxDrawBuffers = ctx->Const.MaxDrawBuffers; 2556 2557 state->state_param_enum = (target == GL_VERTEX_PROGRAM_ARB) 2558 ? STATE_VERTEX_PROGRAM : STATE_FRAGMENT_PROGRAM; 2559 2560 _mesa_set_program_error(ctx, -1, NULL); 2561 2562 _mesa_program_lexer_ctor(& state->scanner, state, (const char *) str, len); 2563 yyparse(state); 2564 _mesa_program_lexer_dtor(state->scanner); 2565 2566 2567 if (ctx->Program.ErrorPos != -1) { 2568 goto error; 2569 } 2570 2571 if (! _mesa_layout_parameters(state)) { 2572 struct YYLTYPE loc; 2573 2574 loc.first_line = 0; 2575 loc.first_column = 0; 2576 loc.position = len; 2577 2578 yyerror(& loc, state, "invalid PARAM usage"); 2579 goto error; 2580 } 2581 2582 2583 2584 /* Add one instruction to store the "END" instruction. 2585 */ 2586 state->prog->arb.Instructions = 2587 rzalloc_array(state->mem_ctx, struct prog_instruction, 2588 state->prog->arb.NumInstructions + 1); 2589 2590 if (state->prog->arb.Instructions == NULL) { 2591 goto error; 2592 } 2593 2594 inst = state->inst_head; 2595 for (i = 0; i < state->prog->arb.NumInstructions; i++) { 2596 struct asm_instruction *const temp = inst->next; 2597 2598 state->prog->arb.Instructions[i] = inst->Base; 2599 inst = temp; 2600 } 2601 2602 /* Finally, tag on an OPCODE_END instruction */ 2603 { 2604 const GLuint numInst = state->prog->arb.NumInstructions; 2605 _mesa_init_instructions(state->prog->arb.Instructions + numInst, 1); 2606 state->prog->arb.Instructions[numInst].Opcode = OPCODE_END; 2607 } 2608 state->prog->arb.NumInstructions++; 2609 2610 state->prog->arb.NumParameters = state->prog->Parameters->NumParameters; 2611 state->prog->arb.NumAttributes = 2612 util_bitcount64(state->prog->info.inputs_read); 2613 2614 /* 2615 * Initialize native counts to logical counts. The device driver may 2616 * change them if program is translated into a hardware program. 2617 */ 2618 state->prog->arb.NumNativeInstructions = state->prog->arb.NumInstructions; 2619 state->prog->arb.NumNativeTemporaries = state->prog->arb.NumTemporaries; 2620 state->prog->arb.NumNativeParameters = state->prog->arb.NumParameters; 2621 state->prog->arb.NumNativeAttributes = state->prog->arb.NumAttributes; 2622 state->prog->arb.NumNativeAddressRegs = state->prog->arb.NumAddressRegs; 2623 2624 result = GL_TRUE; 2625 2626error: 2627 for (inst = state->inst_head; inst != NULL; inst = temp) { 2628 temp = inst->next; 2629 free(inst); 2630 } 2631 2632 state->inst_head = NULL; 2633 state->inst_tail = NULL; 2634 2635 for (sym = state->sym; sym != NULL; sym = temp) { 2636 temp = sym->next; 2637 2638 free((void *) sym->name); 2639 free(sym); 2640 } 2641 state->sym = NULL; 2642 2643 _mesa_symbol_table_dtor(state->st); 2644 state->st = NULL; 2645 2646 return result; 2647} 2648