src/gallium/auxiliary/tgsi/tgsi_text.c

   1 /**************************************************************************
   2  *
   3  * Copyright 2008 Tungsten Graphics, Inc., Cedar Park, Texas.
   4  * All Rights Reserved.
   5  *
   6  * Permission is hereby granted, free of charge, to any person obtaining a
   7  * copy of this software and associated documentation files (the
   8  * "Software"), to deal in the Software without restriction, including
   9  * without limitation the rights to use, copy, modify, merge, publish,
  10  * distribute, sub license, and/or sell copies of the Software, and to
  11  * permit persons to whom the Software is furnished to do so, subject to
  12  * the following conditions:
  13  *
  14  * The above copyright notice and this permission notice (including the
  15  * next paragraph) shall be included in all copies or substantial portions
  16  * of the Software.
  17  *
  18  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
  19  * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  20  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
  21  * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR
  22  * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
  23  * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
  24  * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  25  *
  26  **************************************************************************/
  27
  28 #include "util/u_debug.h"
  29 #include "util/u_memory.h"
  30 #include "util/u_prim.h"
  31 #include "pipe/p_defines.h"
  32 #include "util/u_inlines.h"
  33 #include "tgsi_text.h"
  34 #include "tgsi_build.h"
  35 #include "tgsi_info.h"
  36 #include "tgsi_parse.h"
  37 #include "tgsi_sanity.h"
  38 #include "tgsi_strings.h"
  39 #include "tgsi_util.h"
  40 #include "tgsi_dump.h"
  41
  42 static boolean is_alpha_underscore( const char *cur )
  43 {
  44    return
  45       (*cur >= 'a' && *cur <= 'z') ||
  46       (*cur >= 'A' && *cur <= 'Z') ||
  47       *cur == '_';
  48 }
  49
  50 static boolean is_digit( const char *cur )
  51 {
  52    return *cur >= '0' && *cur <= '9';
  53 }
  54
  55 static boolean is_digit_alpha_underscore( const char *cur )
  56 {
  57    return is_digit( cur ) || is_alpha_underscore( cur );
  58 }
  59
  60 static char uprcase( char c )
  61 {
  62    if (c >= 'a' && c <= 'z')
  63       return c + 'A' - 'a';
  64    return c;
  65 }
  66
  67 /*
  68  * Ignore case of str1 and assume str1 is already uppercase.
  69  * Return TRUE iff str1 and str2 are equal.
  70  */
  71 static int
  72 streq_nocase_uprcase(const char *str1,
  73                      const char *str2)
  74 {
  75    while (*str1 && *str2) {
  76       if (*str1 != uprcase(*str2))
  77          return FALSE;
  78       str1++;
  79       str2++;
  80    }
  81    return *str1 == 0 && *str2 == 0;
  82 }
  83
  84 /* Return TRUE if both strings match.
  85  * The second string is terminated by zero.
  86  * The pointer to the first string is moved at end of the read word
  87  * on success.
  88  */
  89 static boolean str_match_no_case( const char **pcur, const char *str )
  90 {
  91    const char *cur = *pcur;
  92
  93    while (*str != '\0' && *str == uprcase( *cur )) {
  94       str++;
  95       cur++;
  96    }
  97    if (*str == '\0') {
  98       *pcur = cur;
  99       return TRUE;
 100    }
 101    return FALSE;
 102 }
 103
 104 /* Return TRUE if both strings match.
 105  * The first string is be terminated by a non-digit non-letter non-underscore
 106  * character, the second string is terminated by zero.
 107  * The pointer to the first string is moved at end of the read word
 108  * on success.
 109  */
 110 static boolean str_match_nocase_whole( const char **pcur, const char *str )
 111 {
 112    const char *cur = *pcur;
 113
 114    if (str_match_no_case(&cur, str) &&
 115        !is_digit_alpha_underscore(cur)) {
 116       *pcur = cur;
 117       return TRUE;
 118    }
 119    return FALSE;
 120 }
 121
 122 /* Eat zero or more whitespaces.
 123  */
 124 static void eat_opt_white( const char **pcur )
 125 {
 126    while (**pcur == ' ' || **pcur == '\t' || **pcur == '\n')
 127       (*pcur)++;
 128 }
 129
 130 /* Eat one or more whitespaces.
 131  * Return TRUE if at least one whitespace eaten.
 132  */
 133 static boolean eat_white( const char **pcur )
 134 {
 135    const char *cur = *pcur;
 136
 137    eat_opt_white( pcur );
 138    return *pcur > cur;
 139 }
 140
 141 /* Parse unsigned integer.
 142  * No checks for overflow.
 143  */
 144 static boolean parse_uint( const char **pcur, uint *val )
 145 {
 146    const char *cur = *pcur;
 147
 148    if (is_digit( cur )) {
 149       *val = *cur++ - '0';
 150       while (is_digit( cur ))
 151          *val = *val * 10 + *cur++ - '0';
 152       *pcur = cur;
 153       return TRUE;
 154    }
 155    return FALSE;
 156 }
 157
 158 static boolean parse_int( const char **pcur, int *val )
 159 {
 160    const char *cur = *pcur;
 161    int sign = (*cur == '-' ? -1 : 1);
 162
 163    if (*cur == '+' || *cur == '-')
 164       cur++;
 165
 166    if (parse_uint(&cur, (uint *)val)) {
 167       *val *= sign;
 168       *pcur = cur;
 169       return TRUE;
 170    }
 171
 172    return FALSE;
 173 }
 174
 175 static boolean parse_identifier( const char **pcur, char *ret )
 176 {
 177    const char *cur = *pcur;
 178    int i = 0;
 179    if (is_alpha_underscore( cur )) {
 180       ret[i++] = *cur++;
 181       while (is_alpha_underscore( cur ) || is_digit( cur ))
 182          ret[i++] = *cur++;
 183       ret[i++] = '\0';
 184       *pcur = cur;
 185       return TRUE;
 186    }
 187    return FALSE;
 188 }
 189
 190 /* Parse floating point.
 191  */
 192 static boolean parse_float( const char **pcur, float *val )
 193 {
 194    const char *cur = *pcur;
 195    boolean integral_part = FALSE;
 196    boolean fractional_part = FALSE;
 197
 198    *val = (float) atof( cur );
 199
 200    if (*cur == '-' || *cur == '+')
 201       cur++;
 202    if (is_digit( cur )) {
 203       cur++;
 204       integral_part = TRUE;
 205       while (is_digit( cur ))
 206          cur++;
 207    }
 208    if (*cur == '.') {
 209       cur++;
 210       if (is_digit( cur )) {
 211          cur++;
 212          fractional_part = TRUE;
 213          while (is_digit( cur ))
 214             cur++;
 215       }
 216    }
 217    if (!integral_part && !fractional_part)
 218       return FALSE;
 219    if (uprcase( *cur ) == 'E') {
 220       cur++;
 221       if (*cur == '-' || *cur == '+')
 222          cur++;
 223       if (is_digit( cur )) {
 224          cur++;
 225          while (is_digit( cur ))
 226             cur++;
 227       }
 228       else
 229          return FALSE;
 230    }
 231    *pcur = cur;
 232    return TRUE;
 233 }
 234
 235 struct translate_ctx
 236 {
 237    const char *text;
 238    const char *cur;
 239    struct tgsi_token *tokens;
 240    struct tgsi_token *tokens_cur;
 241    struct tgsi_token *tokens_end;
 242    struct tgsi_header *header;
 243    unsigned processor : 4;
 244    int implied_array_size : 5;
 245    unsigned num_immediates;
 246 };
 247
 248 static void report_error( struct translate_ctx *ctx, const char *msg )
 249 {
 250    int line = 1;
 251    int column = 1;
 252    const char *itr = ctx->text;
 253
 254    while (itr != ctx->cur) {
 255       if (*itr == '\n') {
 256          column = 1;
 257          ++line;
 258       }
 259       ++column;
 260       ++itr;
 261    }
 262
 263    debug_printf( "\nTGSI asm error: %s [%d : %d] \n", msg, line, column );
 264 }
 265
 266 /* Parse shader header.
 267  * Return TRUE for one of the following headers.
 268  *    FRAG
 269  *    GEOM
 270  *    VERT
 271  */
 272 static boolean parse_header( struct translate_ctx *ctx )
 273 {
 274    uint processor;
 275
 276    if (str_match_nocase_whole( &ctx->cur, "FRAG" ))
 277       processor = TGSI_PROCESSOR_FRAGMENT;
 278    else if (str_match_nocase_whole( &ctx->cur, "VERT" ))
 279       processor = TGSI_PROCESSOR_VERTEX;
 280    else if (str_match_nocase_whole( &ctx->cur, "GEOM" ))
 281       processor = TGSI_PROCESSOR_GEOMETRY;
 282    else if (str_match_nocase_whole( &ctx->cur, "COMP" ))
 283       processor = TGSI_PROCESSOR_COMPUTE;
 284    else {
 285       report_error( ctx, "Unknown header" );
 286       return FALSE;
 287    }
 288
 289    if (ctx->tokens_cur >= ctx->tokens_end)
 290       return FALSE;
 291    ctx->header = (struct tgsi_header *) ctx->tokens_cur++;
 292    *ctx->header = tgsi_build_header();
 293
 294    if (ctx->tokens_cur >= ctx->tokens_end)
 295       return FALSE;
 296    *(struct tgsi_processor *) ctx->tokens_cur++ = tgsi_build_processor( processor, ctx->header );
 297    ctx->processor = processor;
 298
 299    return TRUE;
 300 }
 301
 302 static boolean parse_label( struct translate_ctx *ctx, uint *val )
 303 {
 304    const char *cur = ctx->cur;
 305
 306    if (parse_uint( &cur, val )) {
 307       eat_opt_white( &cur );
 308       if (*cur == ':') {
 309          cur++;
 310          ctx->cur = cur;
 311          return TRUE;
 312       }
 313    }
 314    return FALSE;
 315 }
 316
 317 static boolean
 318 parse_file( const char **pcur, uint *file )
 319 {
 320    uint i;
 321
 322    for (i = 0; i < TGSI_FILE_COUNT; i++) {
 323       const char *cur = *pcur;
 324
 325       if (str_match_nocase_whole( &cur, tgsi_file_names[i] )) {
 326          *pcur = cur;
 327          *file = i;
 328          return TRUE;
 329       }
 330    }
 331    return FALSE;
 332 }
 333
 334 static boolean
 335 parse_opt_writemask(
 336    struct translate_ctx *ctx,
 337    uint *writemask )
 338 {
 339    const char *cur;
 340
 341    cur = ctx->cur;
 342    eat_opt_white( &cur );
 343    if (*cur == '.') {
 344       cur++;
 345       *writemask = TGSI_WRITEMASK_NONE;
 346       eat_opt_white( &cur );
 347       if (uprcase( *cur ) == 'X') {
 348          cur++;
 349          *writemask |= TGSI_WRITEMASK_X;
 350       }
 351       if (uprcase( *cur ) == 'Y') {
 352          cur++;
 353          *writemask |= TGSI_WRITEMASK_Y;
 354       }
 355       if (uprcase( *cur ) == 'Z') {
 356          cur++;
 357          *writemask |= TGSI_WRITEMASK_Z;
 358       }
 359       if (uprcase( *cur ) == 'W') {
 360          cur++;
 361          *writemask |= TGSI_WRITEMASK_W;
 362       }
 363
 364       if (*writemask == TGSI_WRITEMASK_NONE) {
 365          report_error( ctx, "Writemask expected" );
 366          return FALSE;
 367       }
 368
 369       ctx->cur = cur;
 370    }
 371    else {
 372       *writemask = TGSI_WRITEMASK_XYZW;
 373    }
 374    return TRUE;
 375 }
 376
 377
 378 /* <register_file_bracket> ::= <file> `['
 379  */
 380 static boolean
 381 parse_register_file_bracket(
 382    struct translate_ctx *ctx,
 383    uint *file )
 384 {
 385    if (!parse_file( &ctx->cur, file )) {
 386       report_error( ctx, "Unknown register file" );
 387       return FALSE;
 388    }
 389    eat_opt_white( &ctx->cur );
 390    if (*ctx->cur != '[') {
 391       report_error( ctx, "Expected `['" );
 392       return FALSE;
 393    }
 394    ctx->cur++;
 395    return TRUE;
 396 }
 397
 398 /* <register_file_bracket_index> ::= <register_file_bracket> <uint>
 399  */
 400 static boolean
 401 parse_register_file_bracket_index(
 402    struct translate_ctx *ctx,
 403    uint *file,
 404    int *index )
 405 {
 406    uint uindex;
 407
 408    if (!parse_register_file_bracket( ctx, file ))
 409       return FALSE;
 410    eat_opt_white( &ctx->cur );
 411    if (!parse_uint( &ctx->cur, &uindex )) {
 412       report_error( ctx, "Expected literal unsigned integer" );
 413       return FALSE;
 414    }
 415    *index = (int) uindex;
 416    return TRUE;
 417 }
 418
 419 /* Parse simple 1d register operand.
 420  *    <register_dst> ::= <register_file_bracket_index> `]'
 421  */
 422 static boolean
 423 parse_register_1d(struct translate_ctx *ctx,
 424                   uint *file,
 425                   int *index )
 426 {
 427    if (!parse_register_file_bracket_index( ctx, file, index ))
 428       return FALSE;
 429    eat_opt_white( &ctx->cur );
 430    if (*ctx->cur != ']') {
 431       report_error( ctx, "Expected `]'" );
 432       return FALSE;
 433    }
 434    ctx->cur++;
 435    return TRUE;
 436 }
 437
 438 struct parsed_bracket {
 439    int index;
 440
 441    uint ind_file;
 442    int ind_index;
 443    uint ind_comp;
 444 };
 445
 446
 447 static boolean
 448 parse_register_bracket(
 449    struct translate_ctx *ctx,
 450    struct parsed_bracket *brackets)
 451 {
 452    const char *cur;
 453    uint uindex;
 454
 455    memset(brackets, 0, sizeof(struct parsed_bracket));
 456
 457    eat_opt_white( &ctx->cur );
 458
 459    cur = ctx->cur;
 460    if (parse_file( &cur, &brackets->ind_file )) {
 461       if (!parse_register_1d( ctx, &brackets->ind_file,
 462                               &brackets->ind_index ))
 463          return FALSE;
 464       eat_opt_white( &ctx->cur );
 465
 466       if (*ctx->cur == '.') {
 467          ctx->cur++;
 468          eat_opt_white(&ctx->cur);
 469
 470          switch (uprcase(*ctx->cur)) {
 471          case 'X':
 472             brackets->ind_comp = TGSI_SWIZZLE_X;
 473             break;
 474          case 'Y':
 475             brackets->ind_comp = TGSI_SWIZZLE_Y;
 476             break;
 477          case 'Z':
 478             brackets->ind_comp = TGSI_SWIZZLE_Z;
 479             break;
 480          case 'W':
 481             brackets->ind_comp = TGSI_SWIZZLE_W;
 482             break;
 483          default:
 484             report_error(ctx, "Expected indirect register swizzle component `x', `y', `z' or `w'");
 485             return FALSE;
 486          }
 487          ctx->cur++;
 488          eat_opt_white(&ctx->cur);
 489       }
 490
 491       if (*ctx->cur == '+' || *ctx->cur == '-')
 492          parse_int( &ctx->cur, &brackets->index );
 493       else
 494          brackets->index = 0;
 495    }
 496    else {
 497       if (!parse_uint( &ctx->cur, &uindex )) {
 498          report_error( ctx, "Expected literal unsigned integer" );
 499          return FALSE;
 500       }
 501       brackets->index = (int) uindex;
 502       brackets->ind_file = TGSI_FILE_NULL;
 503       brackets->ind_index = 0;
 504    }
 505    eat_opt_white( &ctx->cur );
 506    if (*ctx->cur != ']') {
 507       report_error( ctx, "Expected `]'" );
 508       return FALSE;
 509    }
 510    ctx->cur++;
 511    return TRUE;
 512 }
 513
 514 static boolean
 515 parse_opt_register_src_bracket(
 516    struct translate_ctx *ctx,
 517    struct parsed_bracket *brackets,
 518    int *parsed_brackets)
 519 {
 520    const char *cur = ctx->cur;
 521
 522    *parsed_brackets = 0;
 523
 524    eat_opt_white( &cur );
 525    if (cur[0] == '[') {
 526       ++cur;
 527       ctx->cur = cur;
 528
 529       if (!parse_register_bracket(ctx, brackets))
 530          return FALSE;
 531
 532       *parsed_brackets = 1;
 533    }
 534
 535    return TRUE;
 536 }
 537
 538
 539 /* Parse source register operand.
 540  *    <register_src> ::= <register_file_bracket_index> `]' |
 541  *                       <register_file_bracket> <register_dst> [`.' (`x' | `y' | `z' | `w')] `]' |
 542  *                       <register_file_bracket> <register_dst> [`.' (`x' | `y' | `z' | `w')] `+' <uint> `]' |
 543  *                       <register_file_bracket> <register_dst> [`.' (`x' | `y' | `z' | `w')] `-' <uint> `]'
 544  */
 545 static boolean
 546 parse_register_src(
 547    struct translate_ctx *ctx,
 548    uint *file,
 549    struct parsed_bracket *brackets)
 550 {
 551    brackets->ind_comp = TGSI_SWIZZLE_X;
 552    if (!parse_register_file_bracket( ctx, file ))
 553       return FALSE;
 554    if (!parse_register_bracket( ctx, brackets ))
 555        return FALSE;
 556
 557    return TRUE;
 558 }
 559
 560 struct parsed_dcl_bracket {
 561    uint first;
 562    uint last;
 563 };
 564
 565 static boolean
 566 parse_register_dcl_bracket(
 567    struct translate_ctx *ctx,
 568    struct parsed_dcl_bracket *bracket)
 569 {
 570    uint uindex;
 571    memset(bracket, 0, sizeof(struct parsed_dcl_bracket));
 572
 573    eat_opt_white( &ctx->cur );
 574
 575    if (!parse_uint( &ctx->cur, &uindex )) {
 576       /* it can be an empty bracket [] which means its range
 577        * is from 0 to some implied size */
 578       if (ctx->cur[0] == ']' && ctx->implied_array_size != 0) {
 579          bracket->first = 0;
 580          bracket->last = ctx->implied_array_size - 1;
 581          goto cleanup;
 582       }
 583       report_error( ctx, "Expected literal unsigned integer" );
 584       return FALSE;
 585    }
 586    bracket->first = uindex;
 587
 588    eat_opt_white( &ctx->cur );
 589
 590    if (ctx->cur[0] == '.' && ctx->cur[1] == '.') {
 591       uint uindex;
 592
 593       ctx->cur += 2;
 594       eat_opt_white( &ctx->cur );
 595       if (!parse_uint( &ctx->cur, &uindex )) {
 596          report_error( ctx, "Expected literal integer" );
 597          return FALSE;
 598       }
 599       bracket->last = (int) uindex;
 600       eat_opt_white( &ctx->cur );
 601    }
 602    else {
 603       bracket->last = bracket->first;
 604    }
 605
 606 cleanup:
 607    if (*ctx->cur != ']') {
 608       report_error( ctx, "Expected `]' or `..'" );
 609       return FALSE;
 610    }
 611    ctx->cur++;
 612    return TRUE;
 613 }
 614
 615 /* Parse register declaration.
 616  *    <register_dcl> ::= <register_file_bracket_index> `]' |
 617  *                       <register_file_bracket_index> `..' <index> `]'
 618  */
 619 static boolean
 620 parse_register_dcl(
 621    struct translate_ctx *ctx,
 622    uint *file,
 623    struct parsed_dcl_bracket *brackets,
 624    int *num_brackets)
 625 {
 626    const char *cur;
 627
 628    *num_brackets = 0;
 629
 630    if (!parse_register_file_bracket( ctx, file ))
 631       return FALSE;
 632    if (!parse_register_dcl_bracket( ctx, &brackets[0] ))
 633       return FALSE;
 634
 635    *num_brackets = 1;
 636
 637    cur = ctx->cur;
 638    eat_opt_white( &cur );
 639
 640    if (cur[0] == '[') {
 641       ++cur;
 642       ctx->cur = cur;
 643       if (!parse_register_dcl_bracket( ctx, &brackets[1] ))
 644          return FALSE;
 645       /* for geometry shader we don't really care about
 646        * the first brackets it's always the size of the
 647        * input primitive. so we want to declare just
 648        * the index relevant to the semantics which is in
 649        * the second bracket */
 650       if (ctx->processor == TGSI_PROCESSOR_GEOMETRY && *file == TGSI_FILE_INPUT) {
 651          brackets[0] = brackets[1];
 652          *num_brackets = 1;
 653       } else {
 654          *num_brackets = 2;
 655       }
 656    }
 657
 658    return TRUE;
 659 }
 660
 661
 662 /* Parse destination register operand.*/
 663 static boolean
 664 parse_register_dst(
 665    struct translate_ctx *ctx,
 666    uint *file,
 667    struct parsed_bracket *brackets)
 668 {
 669    brackets->ind_comp = TGSI_SWIZZLE_X;
 670    if (!parse_register_file_bracket( ctx, file ))
 671       return FALSE;
 672    if (!parse_register_bracket( ctx, brackets ))
 673        return FALSE;
 674
 675    return TRUE;
 676 }
 677
 678 static boolean
 679 parse_dst_operand(
 680    struct translate_ctx *ctx,
 681    struct tgsi_full_dst_register *dst )
 682 {
 683    uint file;
 684    uint writemask;
 685    const char *cur;
 686    struct parsed_bracket bracket[2];
 687    int parsed_opt_brackets;
 688
 689    if (!parse_register_dst( ctx, &file, &bracket[0] ))
 690       return FALSE;
 691    if (!parse_opt_register_src_bracket(ctx, &bracket[1], &parsed_opt_brackets))
 692       return FALSE;
 693
 694    cur = ctx->cur;
 695    eat_opt_white( &cur );
 696
 697    if (!parse_opt_writemask( ctx, &writemask ))
 698       return FALSE;
 699
 700    dst->Register.File = file;
 701    if (parsed_opt_brackets) {
 702       dst->Register.Dimension = 1;
 703       dst->Dimension.Indirect = 0;
 704       dst->Dimension.Dimension = 0;
 705       dst->Dimension.Index = bracket[0].index;
 706       bracket[0] = bracket[1];
 707    }
 708    dst->Register.Index = bracket[0].index;
 709    dst->Register.WriteMask = writemask;
 710    if (bracket[0].ind_file != TGSI_FILE_NULL) {
 711       dst->Register.Indirect = 1;
 712       dst->Indirect.File = bracket[0].ind_file;
 713       dst->Indirect.Index = bracket[0].ind_index;
 714       dst->Indirect.SwizzleX = bracket[0].ind_comp;
 715       dst->Indirect.SwizzleY = bracket[0].ind_comp;
 716       dst->Indirect.SwizzleZ = bracket[0].ind_comp;
 717       dst->Indirect.SwizzleW = bracket[0].ind_comp;
 718    }
 719    return TRUE;
 720 }
 721
 722 static boolean
 723 parse_optional_swizzle(
 724    struct translate_ctx *ctx,
 725    uint swizzle[4],
 726    boolean *parsed_swizzle )
 727 {
 728    const char *cur = ctx->cur;
 729
 730    *parsed_swizzle = FALSE;
 731
 732    eat_opt_white( &cur );
 733    if (*cur == '.') {
 734       uint i;
 735
 736       cur++;
 737       eat_opt_white( &cur );
 738       for (i = 0; i < 4; i++) {
 739          if (uprcase( *cur ) == 'X')
 740             swizzle[i] = TGSI_SWIZZLE_X;
 741          else if (uprcase( *cur ) == 'Y')
 742             swizzle[i] = TGSI_SWIZZLE_Y;
 743          else if (uprcase( *cur ) == 'Z')
 744             swizzle[i] = TGSI_SWIZZLE_Z;
 745          else if (uprcase( *cur ) == 'W')
 746             swizzle[i] = TGSI_SWIZZLE_W;
 747          else {
 748             report_error( ctx, "Expected register swizzle component `x', `y', `z' or `w'" );
 749             return FALSE;
 750          }
 751          cur++;
 752       }
 753       *parsed_swizzle = TRUE;
 754       ctx->cur = cur;
 755    }
 756    return TRUE;
 757 }
 758
 759 static boolean
 760 parse_src_operand(
 761    struct translate_ctx *ctx,
 762    struct tgsi_full_src_register *src )
 763 {
 764    uint file;
 765    uint swizzle[4];
 766    boolean parsed_swizzle;
 767    struct parsed_bracket bracket[2];
 768    int parsed_opt_brackets;
 769
 770    if (*ctx->cur == '-') {
 771       ctx->cur++;
 772       eat_opt_white( &ctx->cur );
 773       src->Register.Negate = 1;
 774    }
 775
 776    if (*ctx->cur == '|') {
 777       ctx->cur++;
 778       eat_opt_white( &ctx->cur );
 779       src->Register.Absolute = 1;
 780    }
 781
 782    if (!parse_register_src(ctx, &file, &bracket[0]))
 783       return FALSE;
 784    if (!parse_opt_register_src_bracket(ctx, &bracket[1], &parsed_opt_brackets))
 785       return FALSE;
 786
 787    src->Register.File = file;
 788    if (parsed_opt_brackets) {
 789       src->Register.Dimension = 1;
 790       src->Dimension.Indirect = 0;
 791       src->Dimension.Dimension = 0;
 792       src->Dimension.Index = bracket[0].index;
 793       bracket[0] = bracket[1];
 794    }
 795    src->Register.Index = bracket[0].index;
 796    if (bracket[0].ind_file != TGSI_FILE_NULL) {
 797       src->Register.Indirect = 1;
 798       src->Indirect.File = bracket[0].ind_file;
 799       src->Indirect.Index = bracket[0].ind_index;
 800       src->Indirect.SwizzleX = bracket[0].ind_comp;
 801       src->Indirect.SwizzleY = bracket[0].ind_comp;
 802       src->Indirect.SwizzleZ = bracket[0].ind_comp;
 803       src->Indirect.SwizzleW = bracket[0].ind_comp;
 804    }
 805
 806    /* Parse optional swizzle.
 807     */
 808    if (parse_optional_swizzle( ctx, swizzle, &parsed_swizzle )) {
 809       if (parsed_swizzle) {
 810          src->Register.SwizzleX = swizzle[0];
 811          src->Register.SwizzleY = swizzle[1];
 812          src->Register.SwizzleZ = swizzle[2];
 813          src->Register.SwizzleW = swizzle[3];
 814       }
 815    }
 816
 817    if (src->Register.Absolute) {
 818       eat_opt_white( &ctx->cur );
 819       if (*ctx->cur != '|') {
 820          report_error( ctx, "Expected `|'" );
 821          return FALSE;
 822       }
 823       ctx->cur++;
 824    }
 825
 826
 827    return TRUE;
 828 }
 829
 830 static boolean
 831 match_inst(const char **pcur,
 832            unsigned *saturate,
 833            const struct tgsi_opcode_info *info)
 834 {
 835    const char *cur = *pcur;
 836
 837    /* simple case: the whole string matches the instruction name */
 838    if (str_match_nocase_whole(&cur, info->mnemonic)) {
 839       *pcur = cur;
 840       *saturate = TGSI_SAT_NONE;
 841       return TRUE;
 842    }
 843
 844    if (str_match_no_case(&cur, info->mnemonic)) {
 845       /* the instruction has a suffix, figure it out */
 846       if (str_match_nocase_whole(&cur, "_SAT")) {
 847          *pcur = cur;
 848          *saturate = TGSI_SAT_ZERO_ONE;
 849          return TRUE;
 850       }
 851
 852       if (str_match_nocase_whole(&cur, "_SATNV")) {
 853          *pcur = cur;
 854          *saturate = TGSI_SAT_MINUS_PLUS_ONE;
 855          return TRUE;
 856       }
 857    }
 858
 859    return FALSE;
 860 }
 861
 862 static boolean
 863 parse_instruction(
 864    struct translate_ctx *ctx,
 865    boolean has_label )
 866 {
 867    uint i;
 868    uint saturate = TGSI_SAT_NONE;
 869    const struct tgsi_opcode_info *info;
 870    struct tgsi_full_instruction inst;
 871    const char *cur;
 872    uint advance;
 873
 874    inst = tgsi_default_full_instruction();
 875
 876    /* Parse predicate.
 877     */
 878    eat_opt_white( &ctx->cur );
 879    if (*ctx->cur == '(') {
 880       uint file;
 881       int index;
 882       uint swizzle[4];
 883       boolean parsed_swizzle;
 884
 885       inst.Instruction.Predicate = 1;
 886
 887       ctx->cur++;
 888       if (*ctx->cur == '!') {
 889          ctx->cur++;
 890          inst.Predicate.Negate = 1;
 891       }
 892
 893       if (!parse_register_1d( ctx, &file, &index ))
 894          return FALSE;
 895
 896       if (parse_optional_swizzle( ctx, swizzle, &parsed_swizzle )) {
 897          if (parsed_swizzle) {
 898             inst.Predicate.SwizzleX = swizzle[0];
 899             inst.Predicate.SwizzleY = swizzle[1];
 900             inst.Predicate.SwizzleZ = swizzle[2];
 901             inst.Predicate.SwizzleW = swizzle[3];
 902          }
 903       }
 904
 905       if (*ctx->cur != ')') {
 906          report_error( ctx, "Expected `)'" );
 907          return FALSE;
 908       }
 909
 910       ctx->cur++;
 911    }
 912
 913    /* Parse instruction name.
 914     */
 915    eat_opt_white( &ctx->cur );
 916    for (i = 0; i < TGSI_OPCODE_LAST; i++) {
 917       cur = ctx->cur;
 918
 919       info = tgsi_get_opcode_info( i );
 920       if (match_inst(&cur, &saturate, info)) {
 921          if (info->num_dst + info->num_src + info->is_tex == 0) {
 922             ctx->cur = cur;
 923             break;
 924          }
 925          else if (*cur == '\0' || eat_white( &cur )) {
 926             ctx->cur = cur;
 927             break;
 928          }
 929       }
 930    }
 931    if (i == TGSI_OPCODE_LAST) {
 932       if (has_label)
 933          report_error( ctx, "Unknown opcode" );
 934       else
 935          report_error( ctx, "Expected `DCL', `IMM' or a label" );
 936       return FALSE;
 937    }
 938
 939    inst.Instruction.Opcode = i;
 940    inst.Instruction.Saturate = saturate;
 941    inst.Instruction.NumDstRegs = info->num_dst;
 942    inst.Instruction.NumSrcRegs = info->num_src;
 943
 944    /* Parse instruction operands.
 945     */
 946    for (i = 0; i < info->num_dst + info->num_src + info->is_tex; i++) {
 947       if (i > 0) {
 948          eat_opt_white( &ctx->cur );
 949          if (*ctx->cur != ',') {
 950             report_error( ctx, "Expected `,'" );
 951             return FALSE;
 952          }
 953          ctx->cur++;
 954          eat_opt_white( &ctx->cur );
 955       }
 956
 957       if (i < info->num_dst) {
 958          if (!parse_dst_operand( ctx, &inst.Dst[i] ))
 959             return FALSE;
 960       }
 961       else if (i < info->num_dst + info->num_src) {
 962          if (!parse_src_operand( ctx, &inst.Src[i - info->num_dst] ))
 963             return FALSE;
 964       }
 965       else {
 966          uint j;
 967
 968          for (j = 0; j < TGSI_TEXTURE_COUNT; j++) {
 969             if (str_match_nocase_whole( &ctx->cur, tgsi_texture_names[j] )) {
 970                inst.Instruction.Texture = 1;
 971                inst.Texture.Texture = j;
 972                break;
 973             }
 974          }
 975          if (j == TGSI_TEXTURE_COUNT) {
 976             report_error( ctx, "Expected texture target" );
 977             return FALSE;
 978          }
 979       }
 980    }
 981
 982    cur = ctx->cur;
 983    eat_opt_white( &cur );
 984    if (info->is_branch && *cur == ':') {
 985       uint target;
 986
 987       cur++;
 988       eat_opt_white( &cur );
 989       if (!parse_uint( &cur, &target )) {
 990          report_error( ctx, "Expected a label" );
 991          return FALSE;
 992       }
 993       inst.Instruction.Label = 1;
 994       inst.Label.Label = target;
 995       ctx->cur = cur;
 996    }
 997
 998    advance = tgsi_build_full_instruction(
 999       &inst,
1000       ctx->tokens_cur,
1001       ctx->header,
1002       (uint) (ctx->tokens_end - ctx->tokens_cur) );
1003    if (advance == 0)
1004       return FALSE;
1005    ctx->tokens_cur += advance;
1006
1007    return TRUE;
1008 }
1009
1010 /* parses a 4-touple of the form {x, y, z, w}
1011  * where x, y, z, w are numbers */
1012 static boolean parse_immediate_data(struct translate_ctx *ctx, unsigned type,
1013                                     union tgsi_immediate_data *values)
1014 {
1015    unsigned i;
1016    int ret;
1017
1018    eat_opt_white( &ctx->cur );
1019    if (*ctx->cur != '{') {
1020       report_error( ctx, "Expected `{'" );
1021       return FALSE;
1022    }
1023    ctx->cur++;
1024    for (i = 0; i < 4; i++) {
1025       eat_opt_white( &ctx->cur );
1026       if (i > 0) {
1027          if (*ctx->cur != ',') {
1028             report_error( ctx, "Expected `,'" );
1029             return FALSE;
1030          }
1031          ctx->cur++;
1032          eat_opt_white( &ctx->cur );
1033       }
1034
1035       switch (type) {
1036       case TGSI_IMM_FLOAT32:
1037          ret = parse_float(&ctx->cur, &values[i].Float);
1038          break;
1039       case TGSI_IMM_UINT32:
1040          ret = parse_uint(&ctx->cur, &values[i].Uint);
1041          break;
1042       case TGSI_IMM_INT32:
1043          ret = parse_int(&ctx->cur, &values[i].Int);
1044          break;
1045       default:
1046          assert(0);
1047          ret = FALSE;
1048          break;
1049       }
1050
1051       if (!ret) {
1052          report_error( ctx, "Expected immediate constant" );
1053          return FALSE;
1054       }
1055    }
1056    eat_opt_white( &ctx->cur );
1057    if (*ctx->cur != '}') {
1058       report_error( ctx, "Expected `}'" );
1059       return FALSE;
1060    }
1061    ctx->cur++;
1062
1063    return TRUE;
1064 }
1065
1066 static boolean parse_declaration( struct translate_ctx *ctx )
1067 {
1068    struct tgsi_full_declaration decl;
1069    uint file;
1070    struct parsed_dcl_bracket brackets[2];
1071    int num_brackets;
1072    uint writemask;
1073    const char *cur, *cur2;
1074    uint advance;
1075    boolean is_vs_input;
1076    boolean is_imm_array;
1077
1078    if (!eat_white( &ctx->cur )) {
1079       report_error( ctx, "Syntax error" );
1080       return FALSE;
1081    }
1082    if (!parse_register_dcl( ctx, &file, brackets, &num_brackets))
1083       return FALSE;
1084    if (!parse_opt_writemask( ctx, &writemask ))
1085       return FALSE;
1086
1087    decl = tgsi_default_full_declaration();
1088    decl.Declaration.File = file;
1089    decl.Declaration.UsageMask = writemask;
1090
1091    if (num_brackets == 1) {
1092       decl.Range.First = brackets[0].first;
1093       decl.Range.Last = brackets[0].last;
1094    } else {
1095       decl.Range.First = brackets[1].first;
1096       decl.Range.Last = brackets[1].last;
1097
1098       decl.Declaration.Dimension = 1;
1099       decl.Dim.Index2D = brackets[0].first;
1100    }
1101
1102    is_vs_input = (file == TGSI_FILE_INPUT &&
1103                   ctx->processor == TGSI_PROCESSOR_VERTEX);
1104    is_imm_array = (file == TGSI_FILE_IMMEDIATE_ARRAY);
1105
1106    cur = ctx->cur;
1107    eat_opt_white( &cur );
1108    if (*cur == ',' && !is_vs_input) {
1109       uint i, j;
1110
1111       cur++;
1112       eat_opt_white( &cur );
1113       if (file == TGSI_FILE_RESOURCE) {
1114          for (i = 0; i < TGSI_TEXTURE_COUNT; i++) {
1115             if (str_match_nocase_whole(&cur, tgsi_texture_names[i])) {
1116                decl.Resource.Resource = i;
1117                break;
1118             }
1119          }
1120          if (i == TGSI_TEXTURE_COUNT) {
1121             report_error(ctx, "Expected texture target");
1122             return FALSE;
1123          }
1124
1125          cur2 = cur;
1126          eat_opt_white(&cur2);
1127          while (*cur2 == ',') {
1128             cur2++;
1129             eat_opt_white(&cur2);
1130             if (str_match_nocase_whole(&cur2, "RAW")) {
1131                decl.Resource.Raw = 1;
1132
1133             } else if (str_match_nocase_whole(&cur2, "WR")) {
1134                decl.Resource.Writable = 1;
1135
1136             } else {
1137                break;
1138             }
1139             cur = cur2;
1140             eat_opt_white(&cur2);
1141          }
1142
1143          ctx->cur = cur;
1144
1145       } else if (file == TGSI_FILE_SAMPLER_VIEW) {
1146          for (i = 0; i < TGSI_TEXTURE_COUNT; i++) {
1147             if (str_match_nocase_whole(&cur, tgsi_texture_names[i])) {
1148                decl.SamplerView.Resource = i;
1149                break;
1150             }
1151          }
1152          if (i == TGSI_TEXTURE_COUNT) {
1153             report_error(ctx, "Expected texture target");
1154             return FALSE;
1155          }
1156          eat_opt_white( &cur );
1157          if (*cur != ',') {
1158             report_error( ctx, "Expected `,'" );
1159             return FALSE;
1160          }
1161          ++cur;
1162          eat_opt_white( &cur );
1163          for (j = 0; j < 4; ++j) {
1164             for (i = 0; i < PIPE_TYPE_COUNT; ++i) {
1165                if (str_match_nocase_whole(&cur, tgsi_type_names[i])) {
1166                   switch (j) {
1167                   case 0:
1168                      decl.SamplerView.ReturnTypeX = i;
1169                      break;
1170                   case 1:
1171                      decl.SamplerView.ReturnTypeY = i;
1172                      break;
1173                   case 2:
1174                      decl.SamplerView.ReturnTypeZ = i;
1175                      break;
1176                   case 3:
1177                      decl.SamplerView.ReturnTypeW = i;
1178                      break;
1179                   default:
1180                      assert(0);
1181                   }
1182                   break;
1183                }
1184             }
1185             if (i == PIPE_TYPE_COUNT) {
1186                if (j == 0 || j >  2) {
1187                   report_error(ctx, "Expected type name");
1188                   return FALSE;
1189                }
1190                break;
1191             } else {
1192                cur2 = cur;
1193                eat_opt_white( &cur2 );
1194                if (*cur2 == ',') {
1195                   cur2++;
1196                   eat_opt_white( &cur2 );
1197                   cur = cur2;
1198                   continue;
1199                } else
1200                   break;
1201             }
1202          }
1203          if (j < 4) {
1204             decl.SamplerView.ReturnTypeY =
1205                decl.SamplerView.ReturnTypeZ =
1206                decl.SamplerView.ReturnTypeW =
1207                decl.SamplerView.ReturnTypeX;
1208          }
1209          ctx->cur = cur;
1210       } else {
1211          if (str_match_nocase_whole(&cur, "LOCAL")) {
1212             decl.Declaration.Local = 1;
1213             ctx->cur = cur;
1214          }
1215
1216          cur = ctx->cur;
1217          eat_opt_white( &cur );
1218          if (*cur == ',') {
1219             cur++;
1220             eat_opt_white( &cur );
1221
1222             for (i = 0; i < TGSI_SEMANTIC_COUNT; i++) {
1223                if (str_match_nocase_whole(&cur, tgsi_semantic_names[i])) {
1224                   uint index;
1225
1226                   cur2 = cur;
1227                   eat_opt_white( &cur2 );
1228                   if (*cur2 == '[') {
1229                      cur2++;
1230                      eat_opt_white( &cur2 );
1231                      if (!parse_uint( &cur2, &index )) {
1232                         report_error( ctx, "Expected literal integer" );
1233                         return FALSE;
1234                      }
1235                      eat_opt_white( &cur2 );
1236                      if (*cur2 != ']') {
1237                         report_error( ctx, "Expected `]'" );
1238                         return FALSE;
1239                      }
1240                      cur2++;
1241
1242                      decl.Semantic.Index = index;
1243
1244                      cur = cur2;
1245                   }
1246
1247                   decl.Declaration.Semantic = 1;
1248                   decl.Semantic.Name = i;
1249
1250                   ctx->cur = cur;
1251                   break;
1252                }
1253             }
1254          }
1255       }
1256    } else if (is_imm_array) {
1257       unsigned i;
1258       union tgsi_immediate_data *vals_itr;
1259       /* we have our immediate data */
1260       if (*cur != '{') {
1261          report_error( ctx, "Immediate array without data" );
1262          return FALSE;
1263       }
1264       ++cur;
1265       ctx->cur = cur;
1266
1267       decl.ImmediateData.u =
1268          MALLOC(sizeof(union tgsi_immediate_data) * 4 *
1269                 (decl.Range.Last + 1));
1270       vals_itr = decl.ImmediateData.u;
1271       for (i = 0; i <= decl.Range.Last; ++i) {
1272          if (!parse_immediate_data(ctx, TGSI_IMM_FLOAT32, vals_itr)) {
1273             FREE(decl.ImmediateData.u);
1274             return FALSE;
1275          }
1276          vals_itr += 4;
1277          eat_opt_white( &ctx->cur );
1278          if (*ctx->cur != ',') {
1279             if (i !=  decl.Range.Last) {
1280                report_error( ctx, "Not enough data in immediate array!" );
1281                FREE(decl.ImmediateData.u);
1282                return FALSE;
1283             }
1284          } else
1285             ++ctx->cur;
1286       }
1287       eat_opt_white( &ctx->cur );
1288       if (*ctx->cur != '}') {
1289          FREE(decl.ImmediateData.u);
1290          report_error( ctx, "Immediate array data missing closing '}'" );
1291          return FALSE;
1292       }
1293       ++ctx->cur;
1294    }
1295
1296    cur = ctx->cur;
1297    eat_opt_white( &cur );
1298    if (*cur == ',' && !is_vs_input) {
1299       uint i;
1300
1301       cur++;
1302       eat_opt_white( &cur );
1303       for (i = 0; i < TGSI_INTERPOLATE_COUNT; i++) {
1304          if (str_match_nocase_whole( &cur, tgsi_interpolate_names[i] )) {
1305             decl.Declaration.Interpolate = 1;
1306             decl.Interp.Interpolate = i;
1307
1308             ctx->cur = cur;
1309             break;
1310          }
1311       }
1312       if (i == TGSI_INTERPOLATE_COUNT) {
1313          report_error( ctx, "Expected semantic or interpolate attribute" );
1314          return FALSE;
1315       }
1316    }
1317
1318    advance = tgsi_build_full_declaration(
1319       &decl,
1320       ctx->tokens_cur,
1321       ctx->header,
1322       (uint) (ctx->tokens_end - ctx->tokens_cur) );
1323
1324    if (is_imm_array)
1325       FREE(decl.ImmediateData.u);
1326
1327    if (advance == 0)
1328       return FALSE;
1329    ctx->tokens_cur += advance;
1330
1331    return TRUE;
1332 }
1333
1334 static boolean parse_immediate( struct translate_ctx *ctx )
1335 {
1336    struct tgsi_full_immediate imm;
1337    uint advance;
1338    int type;
1339
1340    if (*ctx->cur == '[') {
1341       uint uindex;
1342
1343       ++ctx->cur;
1344
1345       eat_opt_white( &ctx->cur );
1346       if (!parse_uint( &ctx->cur, &uindex )) {
1347          report_error( ctx, "Expected literal unsigned integer" );
1348          return FALSE;
1349       }
1350
1351       if (uindex != ctx->num_immediates) {
1352          report_error( ctx, "Immediates must be sorted" );
1353          return FALSE;
1354       }
1355
1356       eat_opt_white( &ctx->cur );
1357       if (*ctx->cur != ']') {
1358          report_error( ctx, "Expected `]'" );
1359          return FALSE;
1360       }
1361
1362       ctx->cur++;
1363    }
1364
1365    if (!eat_white( &ctx->cur )) {
1366       report_error( ctx, "Syntax error" );
1367       return FALSE;
1368    }
1369    for (type = 0; type < Elements(tgsi_immediate_type_names); ++type) {
1370       if (str_match_nocase_whole(&ctx->cur, tgsi_immediate_type_names[type]))
1371          break;
1372    }
1373    if (type == Elements(tgsi_immediate_type_names)) {
1374       report_error( ctx, "Expected immediate type" );
1375       return FALSE;
1376    }
1377
1378    imm = tgsi_default_full_immediate();
1379    imm.Immediate.NrTokens += 4;
1380    imm.Immediate.DataType = type;
1381    parse_immediate_data(ctx, type, imm.u);
1382
1383    advance = tgsi_build_full_immediate(
1384       &imm,
1385       ctx->tokens_cur,
1386       ctx->header,
1387       (uint) (ctx->tokens_end - ctx->tokens_cur) );
1388    if (advance == 0)
1389       return FALSE;
1390    ctx->tokens_cur += advance;
1391
1392    ctx->num_immediates++;
1393
1394    return TRUE;
1395 }
1396
1397 static boolean
1398 parse_primitive( const char **pcur, uint *primitive )
1399 {
1400    uint i;
1401
1402    for (i = 0; i < PIPE_PRIM_MAX; i++) {
1403       const char *cur = *pcur;
1404
1405       if (str_match_nocase_whole( &cur, tgsi_primitive_names[i])) {
1406          *primitive = i;
1407          *pcur = cur;
1408          return TRUE;
1409       }
1410    }
1411    return FALSE;
1412 }
1413
1414 static boolean
1415 parse_fs_coord_origin( const char **pcur, uint *fs_coord_origin )
1416 {
1417    uint i;
1418
1419    for (i = 0; i < Elements(tgsi_fs_coord_origin_names); i++) {
1420       const char *cur = *pcur;
1421
1422       if (str_match_nocase_whole( &cur, tgsi_fs_coord_origin_names[i])) {
1423          *fs_coord_origin = i;
1424          *pcur = cur;
1425          return TRUE;
1426       }
1427    }
1428    return FALSE;
1429 }
1430
1431 static boolean
1432 parse_fs_coord_pixel_center( const char **pcur, uint *fs_coord_pixel_center )
1433 {
1434    uint i;
1435
1436    for (i = 0; i < Elements(tgsi_fs_coord_pixel_center_names); i++) {
1437       const char *cur = *pcur;
1438
1439       if (str_match_nocase_whole( &cur, tgsi_fs_coord_pixel_center_names[i])) {
1440          *fs_coord_pixel_center = i;
1441          *pcur = cur;
1442          return TRUE;
1443       }
1444    }
1445    return FALSE;
1446 }
1447
1448
1449 static boolean parse_property( struct translate_ctx *ctx )
1450 {
1451    struct tgsi_full_property prop;
1452    uint property_name;
1453    uint values[8];
1454    uint advance;
1455    char id[64];
1456
1457    if (!eat_white( &ctx->cur )) {
1458       report_error( ctx, "Syntax error" );
1459       return FALSE;
1460    }
1461    if (!parse_identifier( &ctx->cur, id )) {
1462       report_error( ctx, "Syntax error" );
1463       return FALSE;
1464    }
1465    for (property_name = 0; property_name < TGSI_PROPERTY_COUNT;
1466         ++property_name) {
1467       if (streq_nocase_uprcase(tgsi_property_names[property_name], id)) {
1468          break;
1469       }
1470    }
1471    if (property_name >= TGSI_PROPERTY_COUNT) {
1472       debug_printf( "\nError: Unknown property : '%s'", id );
1473       return FALSE;
1474    }
1475
1476    eat_opt_white( &ctx->cur );
1477    switch(property_name) {
1478    case TGSI_PROPERTY_GS_INPUT_PRIM:
1479    case TGSI_PROPERTY_GS_OUTPUT_PRIM:
1480       if (!parse_primitive(&ctx->cur, &values[0] )) {
1481          report_error( ctx, "Unknown primitive name as property!" );
1482          return FALSE;
1483       }
1484       if (property_name == TGSI_PROPERTY_GS_INPUT_PRIM &&
1485           ctx->processor == TGSI_PROCESSOR_GEOMETRY) {
1486          ctx->implied_array_size = u_vertices_per_prim(values[0]);
1487       }
1488       break;
1489    case TGSI_PROPERTY_FS_COORD_ORIGIN:
1490       if (!parse_fs_coord_origin(&ctx->cur, &values[0] )) {
1491          report_error( ctx, "Unknown coord origin as property: must be UPPER_LEFT or LOWER_LEFT!" );
1492          return FALSE;
1493       }
1494       break;
1495    case TGSI_PROPERTY_FS_COORD_PIXEL_CENTER:
1496       if (!parse_fs_coord_pixel_center(&ctx->cur, &values[0] )) {
1497          report_error( ctx, "Unknown coord pixel center as property: must be HALF_INTEGER or INTEGER!" );
1498          return FALSE;
1499       }
1500       break;
1501    case TGSI_PROPERTY_FS_COLOR0_WRITES_ALL_CBUFS:
1502    default:
1503       if (!parse_uint(&ctx->cur, &values[0] )) {
1504          report_error( ctx, "Expected unsigned integer as property!" );
1505          return FALSE;
1506       }
1507    }
1508
1509    prop = tgsi_default_full_property();
1510    prop.Property.PropertyName = property_name;
1511    prop.Property.NrTokens += 1;
1512    prop.u[0].Data = values[0];
1513
1514    advance = tgsi_build_full_property(
1515       &prop,
1516       ctx->tokens_cur,
1517       ctx->header,
1518       (uint) (ctx->tokens_end - ctx->tokens_cur) );
1519    if (advance == 0)
1520       return FALSE;
1521    ctx->tokens_cur += advance;
1522
1523    return TRUE;
1524 }
1525
1526
1527 static boolean translate( struct translate_ctx *ctx )
1528 {
1529    eat_opt_white( &ctx->cur );
1530    if (!parse_header( ctx ))
1531       return FALSE;
1532
1533    while (*ctx->cur != '\0') {
1534       uint label_val = 0;
1535       if (!eat_white( &ctx->cur )) {
1536          report_error( ctx, "Syntax error" );
1537          return FALSE;
1538       }
1539
1540       if (*ctx->cur == '\0')
1541          break;
1542       if (parse_label( ctx, &label_val )) {
1543          if (!parse_instruction( ctx, TRUE ))
1544             return FALSE;
1545       }
1546       else if (str_match_nocase_whole( &ctx->cur, "DCL" )) {
1547          if (!parse_declaration( ctx ))
1548             return FALSE;
1549       }
1550       else if (str_match_nocase_whole( &ctx->cur, "IMM" )) {
1551          if (!parse_immediate( ctx ))
1552             return FALSE;
1553       }
1554       else if (str_match_nocase_whole( &ctx->cur, "PROPERTY" )) {
1555          if (!parse_property( ctx ))
1556             return FALSE;
1557       }
1558       else if (!parse_instruction( ctx, FALSE )) {
1559          return FALSE;
1560       }
1561    }
1562
1563    return TRUE;
1564 }
1565
1566 boolean
1567 tgsi_text_translate(
1568    const char *text,
1569    struct tgsi_token *tokens,
1570    uint num_tokens )
1571 {
1572    struct translate_ctx ctx;
1573
1574    ctx.text = text;
1575    ctx.cur = text;
1576    ctx.tokens = tokens;
1577    ctx.tokens_cur = tokens;
1578    ctx.tokens_end = tokens + num_tokens;
1579
1580    if (!translate( &ctx ))
1581       return FALSE;
1582
1583    return tgsi_sanity_check( tokens );
1584 }