program_lexer.l revision 3c716a7ec2cabfc18a2506f9db655406f8c64fb0
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#include "main/glheader.h" 25#include "main/imports.h" 26#include "program/prog_instruction.h" 27#include "program/prog_statevars.h" 28#include "program/symbol_table.h" 29#include "program/program_parser.h" 30#include "program/program_parse.tab.h" 31 32#define require_ARB_vp (yyextra->mode == ARB_vertex) 33#define require_ARB_fp (yyextra->mode == ARB_fragment) 34#define require_NV_fp (yyextra->option.NV_fragment) 35#define require_shadow (yyextra->option.Shadow) 36#define require_rect (yyextra->option.TexRect) 37#define require_texarray (yyextra->option.TexArray) 38 39#ifndef HAVE_UNISTD_H 40#define YY_NO_UNISTD_H 41#endif 42 43#define return_token_or_IDENTIFIER(condition, token) \ 44 do { \ 45 if (condition) { \ 46 return token; \ 47 } else { \ 48 return handle_ident(yyextra, yytext, yylval); \ 49 } \ 50 } while (0) 51 52#define return_token_or_DOT(condition, token) \ 53 do { \ 54 if (condition) { \ 55 return token; \ 56 } else { \ 57 yyless(1); \ 58 return DOT; \ 59 } \ 60 } while (0) 61 62 63#define return_opcode(condition, token, opcode, len) \ 64 do { \ 65 if (condition && \ 66 _mesa_parse_instruction_suffix(yyextra, \ 67 yytext + len, \ 68 & yylval->temp_inst)) { \ 69 yylval->temp_inst.Opcode = OPCODE_ ## opcode; \ 70 return token; \ 71 } else { \ 72 return handle_ident(yyextra, yytext, yylval); \ 73 } \ 74 } while (0) 75 76#define SWIZZLE_INVAL MAKE_SWIZZLE4(SWIZZLE_NIL, SWIZZLE_NIL, \ 77 SWIZZLE_NIL, SWIZZLE_NIL) 78 79static unsigned 80mask_from_char(char c) 81{ 82 switch (c) { 83 case 'x': 84 case 'r': 85 return WRITEMASK_X; 86 case 'y': 87 case 'g': 88 return WRITEMASK_Y; 89 case 'z': 90 case 'b': 91 return WRITEMASK_Z; 92 case 'w': 93 case 'a': 94 return WRITEMASK_W; 95 } 96 97 return 0; 98} 99 100static unsigned 101swiz_from_char(char c) 102{ 103 switch (c) { 104 case 'x': 105 case 'r': 106 return SWIZZLE_X; 107 case 'y': 108 case 'g': 109 return SWIZZLE_Y; 110 case 'z': 111 case 'b': 112 return SWIZZLE_Z; 113 case 'w': 114 case 'a': 115 return SWIZZLE_W; 116 } 117 118 return 0; 119} 120 121static int 122handle_ident(struct asm_parser_state *state, const char *text, YYSTYPE *lval) 123{ 124 lval->string = strdup(text); 125 126 return (_mesa_symbol_table_find_symbol(state->st, 0, text) == NULL) 127 ? IDENTIFIER : USED_IDENTIFIER; 128} 129 130#define YY_USER_ACTION \ 131 do { \ 132 yylloc->first_column = yylloc->last_column; \ 133 yylloc->last_column += yyleng; \ 134 if ((yylloc->first_line == 1) \ 135 && (yylloc->first_column == 1)) { \ 136 yylloc->position = 1; \ 137 } else { \ 138 yylloc->position += yylloc->last_column - yylloc->first_column; \ 139 } \ 140 } while(0); 141 142#define YY_EXTRA_TYPE struct asm_parser_state * 143 144/* Flex defines a couple of functions with no declarations nor the 145static keyword. Declare them here to avoid a compiler warning. */ 146int yyget_column (yyscan_t yyscanner); 147void yyset_column (int column_no , yyscan_t yyscanner); 148 149%} 150 151num [0-9]+ 152exp [Ee][-+]?[0-9]+ 153frac "."[0-9]+ 154dot "."[ \t]* 155 156sz [HRX]? 157szf [HR]? 158cc C? 159sat (_SAT)? 160 161%option bison-bridge bison-locations reentrant noyywrap 162%% 163 164"!!ARBvp1.0" { return ARBvp_10; } 165"!!ARBfp1.0" { return ARBfp_10; } 166ADDRESS { 167 yylval->integer = at_address; 168 return_token_or_IDENTIFIER(require_ARB_vp, ADDRESS); 169} 170ALIAS { return ALIAS; } 171ATTRIB { return ATTRIB; } 172END { return END; } 173OPTION { return OPTION; } 174OUTPUT { return OUTPUT; } 175PARAM { return PARAM; } 176TEMP { yylval->integer = at_temp; return TEMP; } 177 178ABS{sz}{cc}{sat} { return_opcode( 1, VECTOR_OP, ABS, 3); } 179ADD{sz}{cc}{sat} { return_opcode( 1, BIN_OP, ADD, 3); } 180ARL { return_opcode(require_ARB_vp, ARL, ARL, 3); } 181 182CMP{sat} { return_opcode(require_ARB_fp, TRI_OP, CMP, 3); } 183COS{szf}{cc}{sat} { return_opcode(require_ARB_fp, SCALAR_OP, COS, 3); } 184 185DDX{szf}{cc}{sat} { return_opcode(require_NV_fp, VECTOR_OP, DDX, 3); } 186DDY{szf}{cc}{sat} { return_opcode(require_NV_fp, VECTOR_OP, DDY, 3); } 187DP3{sz}{cc}{sat} { return_opcode( 1, BIN_OP, DP3, 3); } 188DP4{sz}{cc}{sat} { return_opcode( 1, BIN_OP, DP4, 3); } 189DPH{sz}{cc}{sat} { return_opcode( 1, BIN_OP, DPH, 3); } 190DST{szf}{cc}{sat} { return_opcode( 1, BIN_OP, DST, 3); } 191 192EX2{szf}{cc}{sat} { return_opcode( 1, SCALAR_OP, EX2, 3); } 193EXP { return_opcode(require_ARB_vp, SCALAR_OP, EXP, 3); } 194 195FLR{sz}{cc}{sat} { return_opcode( 1, VECTOR_OP, FLR, 3); } 196FRC{sz}{cc}{sat} { return_opcode( 1, VECTOR_OP, FRC, 3); } 197 198KIL { return_opcode(require_ARB_fp, KIL, KIL, 3); } 199 200LIT{szf}{cc}{sat} { return_opcode( 1, VECTOR_OP, LIT, 3); } 201LG2{szf}{cc}{sat} { return_opcode( 1, SCALAR_OP, LG2, 3); } 202LOG { return_opcode(require_ARB_vp, SCALAR_OP, LOG, 3); } 203LRP{sz}{cc}{sat} { return_opcode(require_ARB_fp, TRI_OP, LRP, 3); } 204 205MAD{sz}{cc}{sat} { return_opcode( 1, TRI_OP, MAD, 3); } 206MAX{sz}{cc}{sat} { return_opcode( 1, BIN_OP, MAX, 3); } 207MIN{sz}{cc}{sat} { return_opcode( 1, BIN_OP, MIN, 3); } 208MOV{sz}{cc}{sat} { return_opcode( 1, VECTOR_OP, MOV, 3); } 209MUL{sz}{cc}{sat} { return_opcode( 1, BIN_OP, MUL, 3); } 210 211PK2H { return_opcode(require_NV_fp, VECTOR_OP, PK2H, 4); } 212PK2US { return_opcode(require_NV_fp, VECTOR_OP, PK2US, 5); } 213PK4B { return_opcode(require_NV_fp, VECTOR_OP, PK4B, 4); } 214PK4UB { return_opcode(require_NV_fp, VECTOR_OP, PK4UB, 5); } 215POW{szf}{cc}{sat} { return_opcode( 1, BINSC_OP, POW, 3); } 216 217RCP{szf}{cc}{sat} { return_opcode( 1, SCALAR_OP, RCP, 3); } 218RFL{szf}{cc}{sat} { return_opcode(require_NV_fp, BIN_OP, RFL, 3); } 219RSQ{szf}{cc}{sat} { return_opcode( 1, SCALAR_OP, RSQ, 3); } 220 221SCS{sat} { return_opcode(require_ARB_fp, SCALAR_OP, SCS, 3); } 222SEQ{sz}{cc}{sat} { return_opcode(require_NV_fp, BIN_OP, SEQ, 3); } 223SFL{sz}{cc}{sat} { return_opcode(require_NV_fp, BIN_OP, SFL, 3); } 224SGE{sz}{cc}{sat} { return_opcode( 1, BIN_OP, SGE, 3); } 225SGT{sz}{cc}{sat} { return_opcode(require_NV_fp, BIN_OP, SGT, 3); } 226SIN{szf}{cc}{sat} { return_opcode(require_ARB_fp, SCALAR_OP, SIN, 3); } 227SLE{sz}{cc}{sat} { return_opcode(require_NV_fp, BIN_OP, SLE, 3); } 228SLT{sz}{cc}{sat} { return_opcode( 1, BIN_OP, SLT, 3); } 229SNE{sz}{cc}{sat} { return_opcode(require_NV_fp, BIN_OP, SNE, 3); } 230STR{sz}{cc}{sat} { return_opcode(require_NV_fp, BIN_OP, STR, 3); } 231SUB{sz}{cc}{sat} { return_opcode( 1, BIN_OP, SUB, 3); } 232SWZ{sat} { return_opcode( 1, SWZ, SWZ, 3); } 233 234TEX{cc}{sat} { return_opcode(require_ARB_fp, SAMPLE_OP, TEX, 3); } 235TXB{cc}{sat} { return_opcode(require_ARB_fp, SAMPLE_OP, TXB, 3); } 236TXD{cc}{sat} { return_opcode(require_NV_fp, TXD_OP, TXD, 3); } 237TXP{cc}{sat} { return_opcode(require_ARB_fp, SAMPLE_OP, TXP, 3); } 238 239UP2H{cc}{sat} { return_opcode(require_NV_fp, SCALAR_OP, UP2H, 4); } 240UP2US{cc}{sat} { return_opcode(require_NV_fp, SCALAR_OP, UP2US, 5); } 241UP4B{cc}{sat} { return_opcode(require_NV_fp, SCALAR_OP, UP4B, 4); } 242UP4UB{cc}{sat} { return_opcode(require_NV_fp, SCALAR_OP, UP4UB, 5); } 243 244X2D{szf}{cc}{sat} { return_opcode(require_NV_fp, TRI_OP, X2D, 3); } 245XPD{sat} { return_opcode( 1, BIN_OP, XPD, 3); } 246 247vertex { return_token_or_IDENTIFIER(require_ARB_vp, VERTEX); } 248fragment { return_token_or_IDENTIFIER(require_ARB_fp, FRAGMENT); } 249program { return PROGRAM; } 250state { return STATE; } 251result { return RESULT; } 252 253{dot}ambient { return AMBIENT; } 254{dot}attenuation { return ATTENUATION; } 255{dot}back { return BACK; } 256{dot}clip { return_token_or_DOT(require_ARB_vp, CLIP); } 257{dot}color { return COLOR; } 258{dot}depth { return_token_or_DOT(require_ARB_fp, DEPTH); } 259{dot}diffuse { return DIFFUSE; } 260{dot}direction { return DIRECTION; } 261{dot}emission { return EMISSION; } 262{dot}env { return ENV; } 263{dot}eye { return EYE; } 264{dot}fogcoord { return FOGCOORD; } 265{dot}fog { return FOG; } 266{dot}front { return FRONT; } 267{dot}half { return HALF; } 268{dot}inverse { return INVERSE; } 269{dot}invtrans { return INVTRANS; } 270{dot}light { return LIGHT; } 271{dot}lightmodel { return LIGHTMODEL; } 272{dot}lightprod { return LIGHTPROD; } 273{dot}local { return LOCAL; } 274{dot}material { return MATERIAL; } 275{dot}program { return MAT_PROGRAM; } 276{dot}matrix { return MATRIX; } 277{dot}matrixindex { return_token_or_DOT(require_ARB_vp, MATRIXINDEX); } 278{dot}modelview { return MODELVIEW; } 279{dot}mvp { return MVP; } 280{dot}normal { return_token_or_DOT(require_ARB_vp, NORMAL); } 281{dot}object { return OBJECT; } 282{dot}palette { return PALETTE; } 283{dot}params { return PARAMS; } 284{dot}plane { return PLANE; } 285{dot}point { return_token_or_DOT(require_ARB_vp, POINT_TOK); } 286{dot}pointsize { return_token_or_DOT(require_ARB_vp, POINTSIZE); } 287{dot}position { return POSITION; } 288{dot}primary { return PRIMARY; } 289{dot}projection { return PROJECTION; } 290{dot}range { return_token_or_DOT(require_ARB_fp, RANGE); } 291{dot}row { return ROW; } 292{dot}scenecolor { return SCENECOLOR; } 293{dot}secondary { return SECONDARY; } 294{dot}shininess { return SHININESS; } 295{dot}size { return_token_or_DOT(require_ARB_vp, SIZE_TOK); } 296{dot}specular { return SPECULAR; } 297{dot}spot { return SPOT; } 298{dot}texcoord { return TEXCOORD; } 299{dot}texenv { return_token_or_DOT(require_ARB_fp, TEXENV); } 300{dot}texgen { return_token_or_DOT(require_ARB_vp, TEXGEN); } 301{dot}q { return_token_or_DOT(require_ARB_vp, TEXGEN_Q); } 302{dot}s { return_token_or_DOT(require_ARB_vp, TEXGEN_S); } 303{dot}t { return_token_or_DOT(require_ARB_vp, TEXGEN_T); } 304{dot}texture { return TEXTURE; } 305{dot}transpose { return TRANSPOSE; } 306{dot}attrib { return_token_or_DOT(require_ARB_vp, VTXATTRIB); } 307{dot}weight { return_token_or_DOT(require_ARB_vp, WEIGHT); } 308 309texture { return_token_or_IDENTIFIER(require_ARB_fp, TEXTURE_UNIT); } 3101D { return_token_or_IDENTIFIER(require_ARB_fp, TEX_1D); } 3112D { return_token_or_IDENTIFIER(require_ARB_fp, TEX_2D); } 3123D { return_token_or_IDENTIFIER(require_ARB_fp, TEX_3D); } 313CUBE { return_token_or_IDENTIFIER(require_ARB_fp, TEX_CUBE); } 314RECT { return_token_or_IDENTIFIER(require_ARB_fp && require_rect, TEX_RECT); } 315SHADOW1D { return_token_or_IDENTIFIER(require_ARB_fp && require_shadow, TEX_SHADOW1D); } 316SHADOW2D { return_token_or_IDENTIFIER(require_ARB_fp && require_shadow, TEX_SHADOW2D); } 317SHADOWRECT { return_token_or_IDENTIFIER(require_ARB_fp && require_shadow && require_rect, TEX_SHADOWRECT); } 318ARRAY1D { return_token_or_IDENTIFIER(require_ARB_fp && require_texarray, TEX_ARRAY1D); } 319ARRAY2D { return_token_or_IDENTIFIER(require_ARB_fp && require_texarray, TEX_ARRAY2D); } 320ARRAYSHADOW1D { return_token_or_IDENTIFIER(require_ARB_fp && require_shadow && require_texarray, TEX_ARRAYSHADOW1D); } 321ARRAYSHADOW2D { return_token_or_IDENTIFIER(require_ARB_fp && require_shadow && require_texarray, TEX_ARRAYSHADOW2D); } 322 323[_a-zA-Z$][_a-zA-Z0-9$]* { return handle_ident(yyextra, yytext, yylval); } 324 325".." { return DOT_DOT; } 326 327{num} { 328 yylval->integer = strtol(yytext, NULL, 10); 329 return INTEGER; 330} 331{num}?{frac}{exp}? { 332 yylval->real = _mesa_strtof(yytext, NULL); 333 return REAL; 334} 335{num}"."/[^.] { 336 yylval->real = _mesa_strtof(yytext, NULL); 337 return REAL; 338} 339{num}{exp} { 340 yylval->real = _mesa_strtof(yytext, NULL); 341 return REAL; 342} 343{num}"."{exp} { 344 yylval->real = _mesa_strtof(yytext, NULL); 345 return REAL; 346} 347 348".xyzw" { 349 yylval->swiz_mask.swizzle = SWIZZLE_NOOP; 350 yylval->swiz_mask.mask = WRITEMASK_XYZW; 351 return MASK4; 352} 353 354".xy"[zw] { 355 yylval->swiz_mask.swizzle = SWIZZLE_INVAL; 356 yylval->swiz_mask.mask = WRITEMASK_XY 357 | mask_from_char(yytext[3]); 358 return MASK3; 359} 360".xzw" { 361 yylval->swiz_mask.swizzle = SWIZZLE_INVAL; 362 yylval->swiz_mask.mask = WRITEMASK_XZW; 363 return MASK3; 364} 365".yzw" { 366 yylval->swiz_mask.swizzle = SWIZZLE_INVAL; 367 yylval->swiz_mask.mask = WRITEMASK_YZW; 368 return MASK3; 369} 370 371".x"[yzw] { 372 yylval->swiz_mask.swizzle = SWIZZLE_INVAL; 373 yylval->swiz_mask.mask = WRITEMASK_X 374 | mask_from_char(yytext[2]); 375 return MASK2; 376} 377".y"[zw] { 378 yylval->swiz_mask.swizzle = SWIZZLE_INVAL; 379 yylval->swiz_mask.mask = WRITEMASK_Y 380 | mask_from_char(yytext[2]); 381 return MASK2; 382} 383".zw" { 384 yylval->swiz_mask.swizzle = SWIZZLE_INVAL; 385 yylval->swiz_mask.mask = WRITEMASK_ZW; 386 return MASK2; 387} 388 389"."[xyzw] { 390 const unsigned s = swiz_from_char(yytext[1]); 391 yylval->swiz_mask.swizzle = MAKE_SWIZZLE4(s, s, s, s); 392 yylval->swiz_mask.mask = mask_from_char(yytext[1]); 393 return MASK1; 394} 395 396"."[xyzw]{4} { 397 yylval->swiz_mask.swizzle = MAKE_SWIZZLE4(swiz_from_char(yytext[1]), 398 swiz_from_char(yytext[2]), 399 swiz_from_char(yytext[3]), 400 swiz_from_char(yytext[4])); 401 yylval->swiz_mask.mask = 0; 402 return SWIZZLE; 403} 404 405".rgba" { 406 yylval->swiz_mask.swizzle = SWIZZLE_NOOP; 407 yylval->swiz_mask.mask = WRITEMASK_XYZW; 408 return_token_or_DOT(require_ARB_fp, MASK4); 409} 410 411".rg"[ba] { 412 yylval->swiz_mask.swizzle = SWIZZLE_INVAL; 413 yylval->swiz_mask.mask = WRITEMASK_XY 414 | mask_from_char(yytext[3]); 415 return_token_or_DOT(require_ARB_fp, MASK3); 416} 417".rba" { 418 yylval->swiz_mask.swizzle = SWIZZLE_INVAL; 419 yylval->swiz_mask.mask = WRITEMASK_XZW; 420 return_token_or_DOT(require_ARB_fp, MASK3); 421} 422".gba" { 423 yylval->swiz_mask.swizzle = SWIZZLE_INVAL; 424 yylval->swiz_mask.mask = WRITEMASK_YZW; 425 return_token_or_DOT(require_ARB_fp, MASK3); 426} 427 428".r"[gba] { 429 yylval->swiz_mask.swizzle = SWIZZLE_INVAL; 430 yylval->swiz_mask.mask = WRITEMASK_X 431 | mask_from_char(yytext[2]); 432 return_token_or_DOT(require_ARB_fp, MASK2); 433} 434".g"[ba] { 435 yylval->swiz_mask.swizzle = SWIZZLE_INVAL; 436 yylval->swiz_mask.mask = WRITEMASK_Y 437 | mask_from_char(yytext[2]); 438 return_token_or_DOT(require_ARB_fp, MASK2); 439} 440".ba" { 441 yylval->swiz_mask.swizzle = SWIZZLE_INVAL; 442 yylval->swiz_mask.mask = WRITEMASK_ZW; 443 return_token_or_DOT(require_ARB_fp, MASK2); 444} 445 446"."[gba] { 447 const unsigned s = swiz_from_char(yytext[1]); 448 yylval->swiz_mask.swizzle = MAKE_SWIZZLE4(s, s, s, s); 449 yylval->swiz_mask.mask = mask_from_char(yytext[1]); 450 return_token_or_DOT(require_ARB_fp, MASK1); 451} 452 453 454".r" { 455 if (require_ARB_vp) { 456 return TEXGEN_R; 457 } else { 458 yylval->swiz_mask.swizzle = MAKE_SWIZZLE4(SWIZZLE_X, SWIZZLE_X, 459 SWIZZLE_X, SWIZZLE_X); 460 yylval->swiz_mask.mask = WRITEMASK_X; 461 return MASK1; 462 } 463} 464 465"."[rgba]{4} { 466 yylval->swiz_mask.swizzle = MAKE_SWIZZLE4(swiz_from_char(yytext[1]), 467 swiz_from_char(yytext[2]), 468 swiz_from_char(yytext[3]), 469 swiz_from_char(yytext[4])); 470 yylval->swiz_mask.mask = 0; 471 return_token_or_DOT(require_ARB_fp, SWIZZLE); 472} 473 474"." { return DOT; } 475 476\n { 477 yylloc->first_line++; 478 yylloc->first_column = 1; 479 yylloc->last_line++; 480 yylloc->last_column = 1; 481 yylloc->position++; 482} 483[ \t\r]+ /* eat whitespace */ ; 484#.*$ /* eat comments */ ; 485. { return yytext[0]; } 486%% 487 488void 489_mesa_program_lexer_ctor(void **scanner, struct asm_parser_state *state, 490 const char *string, size_t len) 491{ 492 yylex_init_extra(state, scanner); 493 yy_scan_bytes(string, len, *scanner); 494} 495 496void 497_mesa_program_lexer_dtor(void *scanner) 498{ 499 yylex_destroy(scanner); 500} 501