src/gallium/auxiliary/tgsi/tgsi_text.c

   1 /**************************************************************************
   2  *
   3  * Copyright 2008 VMware, Inc.
   4  * All Rights Reserved.
   5  *
   6  * Permission is hereby granted, free of charge, to any person obtaining a
   7  * copy of this software and associated documentation files (the
   8  * "Software"), to deal in the Software without restriction, including
   9  * without limitation the rights to use, copy, modify, merge, publish,
  10  * distribute, sub license, and/or sell copies of the Software, and to
  11  * permit persons to whom the Software is furnished to do so, subject to
  12  * the following conditions:
  13  *
  14  * The above copyright notice and this permission notice (including the
  15  * next paragraph) shall be included in all copies or substantial portions
  16  * of the Software.
  17  *
  18  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
  19  * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  20  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
  21  * IN NO EVENT SHALL VMWARE AND/OR ITS SUPPLIERS BE LIABLE FOR
  22  * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
  23  * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
  24  * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  25  *
  26  **************************************************************************/
  27
  28 #include "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_name(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    uint ind_array;
 445 };
 446
 447
 448 static boolean
 449 parse_register_bracket(
 450    struct translate_ctx *ctx,
 451    struct parsed_bracket *brackets)
 452 {
 453    const char *cur;
 454    uint uindex;
 455
 456    memset(brackets, 0, sizeof(struct parsed_bracket));
 457
 458    eat_opt_white( &ctx->cur );
 459
 460    cur = ctx->cur;
 461    if (parse_file( &cur, &brackets->ind_file )) {
 462       if (!parse_register_1d( ctx, &brackets->ind_file,
 463                               &brackets->ind_index ))
 464          return FALSE;
 465       eat_opt_white( &ctx->cur );
 466
 467       if (*ctx->cur == '.') {
 468          ctx->cur++;
 469          eat_opt_white(&ctx->cur);
 470
 471          switch (uprcase(*ctx->cur)) {
 472          case 'X':
 473             brackets->ind_comp = TGSI_SWIZZLE_X;
 474             break;
 475          case 'Y':
 476             brackets->ind_comp = TGSI_SWIZZLE_Y;
 477             break;
 478          case 'Z':
 479             brackets->ind_comp = TGSI_SWIZZLE_Z;
 480             break;
 481          case 'W':
 482             brackets->ind_comp = TGSI_SWIZZLE_W;
 483             break;
 484          default:
 485             report_error(ctx, "Expected indirect register swizzle component `x', `y', `z' or `w'");
 486             return FALSE;
 487          }
 488          ctx->cur++;
 489          eat_opt_white(&ctx->cur);
 490       }
 491
 492       if (*ctx->cur == '+' || *ctx->cur == '-')
 493          parse_int( &ctx->cur, &brackets->index );
 494       else
 495          brackets->index = 0;
 496    }
 497    else {
 498       if (!parse_uint( &ctx->cur, &uindex )) {
 499          report_error( ctx, "Expected literal unsigned integer" );
 500          return FALSE;
 501       }
 502       brackets->index = (int) uindex;
 503       brackets->ind_file = TGSI_FILE_NULL;
 504       brackets->ind_index = 0;
 505    }
 506    eat_opt_white( &ctx->cur );
 507    if (*ctx->cur != ']') {
 508       report_error( ctx, "Expected `]'" );
 509       return FALSE;
 510    }
 511    ctx->cur++;
 512    if (*ctx->cur == '(') {
 513       ctx->cur++;
 514       eat_opt_white( &ctx->cur );
 515       if (!parse_uint( &ctx->cur, &brackets->ind_array )) {
 516          report_error( ctx, "Expected literal unsigned integer" );
 517          return FALSE;
 518       }
 519       eat_opt_white( &ctx->cur );
 520       if (*ctx->cur != ')') {
 521          report_error( ctx, "Expected `)'" );
 522          return FALSE;
 523       }
 524       ctx->cur++;
 525    }
 526    return TRUE;
 527 }
 528
 529 static boolean
 530 parse_opt_register_src_bracket(
 531    struct translate_ctx *ctx,
 532    struct parsed_bracket *brackets,
 533    int *parsed_brackets)
 534 {
 535    const char *cur = ctx->cur;
 536
 537    *parsed_brackets = 0;
 538
 539    eat_opt_white( &cur );
 540    if (cur[0] == '[') {
 541       ++cur;
 542       ctx->cur = cur;
 543
 544       if (!parse_register_bracket(ctx, brackets))
 545          return FALSE;
 546
 547       *parsed_brackets = 1;
 548    }
 549
 550    return TRUE;
 551 }
 552
 553
 554 /* Parse source register operand.
 555  *    <register_src> ::= <register_file_bracket_index> `]' |
 556  *                       <register_file_bracket> <register_dst> [`.' (`x' | `y' | `z' | `w')] `]' |
 557  *                       <register_file_bracket> <register_dst> [`.' (`x' | `y' | `z' | `w')] `+' <uint> `]' |
 558  *                       <register_file_bracket> <register_dst> [`.' (`x' | `y' | `z' | `w')] `-' <uint> `]'
 559  */
 560 static boolean
 561 parse_register_src(
 562    struct translate_ctx *ctx,
 563    uint *file,
 564    struct parsed_bracket *brackets)
 565 {
 566    brackets->ind_comp = TGSI_SWIZZLE_X;
 567    if (!parse_register_file_bracket( ctx, file ))
 568       return FALSE;
 569    if (!parse_register_bracket( ctx, brackets ))
 570        return FALSE;
 571
 572    return TRUE;
 573 }
 574
 575 struct parsed_dcl_bracket {
 576    uint first;
 577    uint last;
 578 };
 579
 580 static boolean
 581 parse_register_dcl_bracket(
 582    struct translate_ctx *ctx,
 583    struct parsed_dcl_bracket *bracket)
 584 {
 585    uint uindex;
 586    memset(bracket, 0, sizeof(struct parsed_dcl_bracket));
 587
 588    eat_opt_white( &ctx->cur );
 589
 590    if (!parse_uint( &ctx->cur, &uindex )) {
 591       /* it can be an empty bracket [] which means its range
 592        * is from 0 to some implied size */
 593       if (ctx->cur[0] == ']' && ctx->implied_array_size != 0) {
 594          bracket->first = 0;
 595          bracket->last = ctx->implied_array_size - 1;
 596          goto cleanup;
 597       }
 598       report_error( ctx, "Expected literal unsigned integer" );
 599       return FALSE;
 600    }
 601    bracket->first = uindex;
 602
 603    eat_opt_white( &ctx->cur );
 604
 605    if (ctx->cur[0] == '.' && ctx->cur[1] == '.') {
 606       uint uindex;
 607
 608       ctx->cur += 2;
 609       eat_opt_white( &ctx->cur );
 610       if (!parse_uint( &ctx->cur, &uindex )) {
 611          report_error( ctx, "Expected literal integer" );
 612          return FALSE;
 613       }
 614       bracket->last = (int) uindex;
 615       eat_opt_white( &ctx->cur );
 616    }
 617    else {
 618       bracket->last = bracket->first;
 619    }
 620
 621 cleanup:
 622    if (*ctx->cur != ']') {
 623       report_error( ctx, "Expected `]' or `..'" );
 624       return FALSE;
 625    }
 626    ctx->cur++;
 627    return TRUE;
 628 }
 629
 630 /* Parse register declaration.
 631  *    <register_dcl> ::= <register_file_bracket_index> `]' |
 632  *                       <register_file_bracket_index> `..' <index> `]'
 633  */
 634 static boolean
 635 parse_register_dcl(
 636    struct translate_ctx *ctx,
 637    uint *file,
 638    struct parsed_dcl_bracket *brackets,
 639    int *num_brackets)
 640 {
 641    const char *cur;
 642
 643    *num_brackets = 0;
 644
 645    if (!parse_register_file_bracket( ctx, file ))
 646       return FALSE;
 647    if (!parse_register_dcl_bracket( ctx, &brackets[0] ))
 648       return FALSE;
 649
 650    *num_brackets = 1;
 651
 652    cur = ctx->cur;
 653    eat_opt_white( &cur );
 654
 655    if (cur[0] == '[') {
 656       ++cur;
 657       ctx->cur = cur;
 658       if (!parse_register_dcl_bracket( ctx, &brackets[1] ))
 659          return FALSE;
 660       /* for geometry shader we don't really care about
 661        * the first brackets it's always the size of the
 662        * input primitive. so we want to declare just
 663        * the index relevant to the semantics which is in
 664        * the second bracket */
 665       if (ctx->processor == TGSI_PROCESSOR_GEOMETRY && *file == TGSI_FILE_INPUT) {
 666          brackets[0] = brackets[1];
 667          *num_brackets = 1;
 668       } else {
 669          *num_brackets = 2;
 670       }
 671    }
 672
 673    return TRUE;
 674 }
 675
 676
 677 /* Parse destination register operand.*/
 678 static boolean
 679 parse_register_dst(
 680    struct translate_ctx *ctx,
 681    uint *file,
 682    struct parsed_bracket *brackets)
 683 {
 684    brackets->ind_comp = TGSI_SWIZZLE_X;
 685    if (!parse_register_file_bracket( ctx, file ))
 686       return FALSE;
 687    if (!parse_register_bracket( ctx, brackets ))
 688        return FALSE;
 689
 690    return TRUE;
 691 }
 692
 693 static boolean
 694 parse_dst_operand(
 695    struct translate_ctx *ctx,
 696    struct tgsi_full_dst_register *dst )
 697 {
 698    uint file;
 699    uint writemask;
 700    const char *cur;
 701    struct parsed_bracket bracket[2];
 702    int parsed_opt_brackets;
 703
 704    if (!parse_register_dst( ctx, &file, &bracket[0] ))
 705       return FALSE;
 706    if (!parse_opt_register_src_bracket(ctx, &bracket[1], &parsed_opt_brackets))
 707       return FALSE;
 708
 709    cur = ctx->cur;
 710    eat_opt_white( &cur );
 711
 712    if (!parse_opt_writemask( ctx, &writemask ))
 713       return FALSE;
 714
 715    dst->Register.File = file;
 716    if (parsed_opt_brackets) {
 717       dst->Register.Dimension = 1;
 718       dst->Dimension.Indirect = 0;
 719       dst->Dimension.Dimension = 0;
 720       dst->Dimension.Index = bracket[0].index;
 721       bracket[0] = bracket[1];
 722    }
 723    dst->Register.Index = bracket[0].index;
 724    dst->Register.WriteMask = writemask;
 725    if (bracket[0].ind_file != TGSI_FILE_NULL) {
 726       dst->Register.Indirect = 1;
 727       dst->Indirect.File = bracket[0].ind_file;
 728       dst->Indirect.Index = bracket[0].ind_index;
 729       dst->Indirect.Swizzle = bracket[0].ind_comp;
 730       dst->Indirect.ArrayID = bracket[0].ind_array;
 731    }
 732    return TRUE;
 733 }
 734
 735 static boolean
 736 parse_optional_swizzle(
 737    struct translate_ctx *ctx,
 738    uint *swizzle,
 739    boolean *parsed_swizzle,
 740    int components)
 741 {
 742    const char *cur = ctx->cur;
 743
 744    *parsed_swizzle = FALSE;
 745
 746    eat_opt_white( &cur );
 747    if (*cur == '.') {
 748       uint i;
 749
 750       cur++;
 751       eat_opt_white( &cur );
 752       for (i = 0; i < components; i++) {
 753          if (uprcase( *cur ) == 'X')
 754             swizzle[i] = TGSI_SWIZZLE_X;
 755          else if (uprcase( *cur ) == 'Y')
 756             swizzle[i] = TGSI_SWIZZLE_Y;
 757          else if (uprcase( *cur ) == 'Z')
 758             swizzle[i] = TGSI_SWIZZLE_Z;
 759          else if (uprcase( *cur ) == 'W')
 760             swizzle[i] = TGSI_SWIZZLE_W;
 761          else {
 762             report_error( ctx, "Expected register swizzle component `x', `y', `z' or `w'" );
 763             return FALSE;
 764          }
 765          cur++;
 766       }
 767       *parsed_swizzle = TRUE;
 768       ctx->cur = cur;
 769    }
 770    return TRUE;
 771 }
 772
 773 static boolean
 774 parse_src_operand(
 775    struct translate_ctx *ctx,
 776    struct tgsi_full_src_register *src )
 777 {
 778    uint file;
 779    uint swizzle[4];
 780    boolean parsed_swizzle;
 781    struct parsed_bracket bracket[2];
 782    int parsed_opt_brackets;
 783
 784    if (*ctx->cur == '-') {
 785       ctx->cur++;
 786       eat_opt_white( &ctx->cur );
 787       src->Register.Negate = 1;
 788    }
 789
 790    if (*ctx->cur == '|') {
 791       ctx->cur++;
 792       eat_opt_white( &ctx->cur );
 793       src->Register.Absolute = 1;
 794    }
 795
 796    if (!parse_register_src(ctx, &file, &bracket[0]))
 797       return FALSE;
 798    if (!parse_opt_register_src_bracket(ctx, &bracket[1], &parsed_opt_brackets))
 799       return FALSE;
 800
 801    src->Register.File = file;
 802    if (parsed_opt_brackets) {
 803       src->Register.Dimension = 1;
 804       src->Dimension.Indirect = 0;
 805       src->Dimension.Dimension = 0;
 806       src->Dimension.Index = bracket[0].index;
 807       bracket[0] = bracket[1];
 808    }
 809    src->Register.Index = bracket[0].index;
 810    if (bracket[0].ind_file != TGSI_FILE_NULL) {
 811       src->Register.Indirect = 1;
 812       src->Indirect.File = bracket[0].ind_file;
 813       src->Indirect.Index = bracket[0].ind_index;
 814       src->Indirect.Swizzle = bracket[0].ind_comp;
 815       src->Indirect.ArrayID = bracket[0].ind_array;
 816    }
 817
 818    /* Parse optional swizzle.
 819     */
 820    if (parse_optional_swizzle( ctx, swizzle, &parsed_swizzle, 4 )) {
 821       if (parsed_swizzle) {
 822          src->Register.SwizzleX = swizzle[0];
 823          src->Register.SwizzleY = swizzle[1];
 824          src->Register.SwizzleZ = swizzle[2];
 825          src->Register.SwizzleW = swizzle[3];
 826       }
 827    }
 828
 829    if (src->Register.Absolute) {
 830       eat_opt_white( &ctx->cur );
 831       if (*ctx->cur != '|') {
 832          report_error( ctx, "Expected `|'" );
 833          return FALSE;
 834       }
 835       ctx->cur++;
 836    }
 837
 838
 839    return TRUE;
 840 }
 841
 842 static boolean
 843 parse_texoffset_operand(
 844    struct translate_ctx *ctx,
 845    struct tgsi_texture_offset *src )
 846 {
 847    uint file;
 848    uint swizzle[3];
 849    boolean parsed_swizzle;
 850    struct parsed_bracket bracket;
 851
 852    if (!parse_register_src(ctx, &file, &bracket))
 853       return FALSE;
 854
 855    src->File = file;
 856    src->Index = bracket.index;
 857
 858    /* Parse optional swizzle.
 859     */
 860    if (parse_optional_swizzle( ctx, swizzle, &parsed_swizzle, 3 )) {
 861       if (parsed_swizzle) {
 862          src->SwizzleX = swizzle[0];
 863          src->SwizzleY = swizzle[1];
 864          src->SwizzleZ = swizzle[2];
 865       }
 866    }
 867
 868    return TRUE;
 869 }
 870
 871 static boolean
 872 match_inst(const char **pcur,
 873            unsigned *saturate,
 874            const struct tgsi_opcode_info *info)
 875 {
 876    const char *cur = *pcur;
 877
 878    /* simple case: the whole string matches the instruction name */
 879    if (str_match_nocase_whole(&cur, info->mnemonic)) {
 880       *pcur = cur;
 881       *saturate = TGSI_SAT_NONE;
 882       return TRUE;
 883    }
 884
 885    if (str_match_no_case(&cur, info->mnemonic)) {
 886       /* the instruction has a suffix, figure it out */
 887       if (str_match_nocase_whole(&cur, "_SAT")) {
 888          *pcur = cur;
 889          *saturate = TGSI_SAT_ZERO_ONE;
 890          return TRUE;
 891       }
 892
 893       if (str_match_nocase_whole(&cur, "_SATNV")) {
 894          *pcur = cur;
 895          *saturate = TGSI_SAT_MINUS_PLUS_ONE;
 896          return TRUE;
 897       }
 898    }
 899
 900    return FALSE;
 901 }
 902
 903 static boolean
 904 parse_instruction(
 905    struct translate_ctx *ctx,
 906    boolean has_label )
 907 {
 908    uint i;
 909    uint saturate = TGSI_SAT_NONE;
 910    const struct tgsi_opcode_info *info;
 911    struct tgsi_full_instruction inst;
 912    const char *cur;
 913    uint advance;
 914
 915    inst = tgsi_default_full_instruction();
 916
 917    /* Parse predicate.
 918     */
 919    eat_opt_white( &ctx->cur );
 920    if (*ctx->cur == '(') {
 921       uint file;
 922       int index;
 923       uint swizzle[4];
 924       boolean parsed_swizzle;
 925
 926       inst.Instruction.Predicate = 1;
 927
 928       ctx->cur++;
 929       if (*ctx->cur == '!') {
 930          ctx->cur++;
 931          inst.Predicate.Negate = 1;
 932       }
 933
 934       if (!parse_register_1d( ctx, &file, &index ))
 935          return FALSE;
 936
 937       if (parse_optional_swizzle( ctx, swizzle, &parsed_swizzle, 4 )) {
 938          if (parsed_swizzle) {
 939             inst.Predicate.SwizzleX = swizzle[0];
 940             inst.Predicate.SwizzleY = swizzle[1];
 941             inst.Predicate.SwizzleZ = swizzle[2];
 942             inst.Predicate.SwizzleW = swizzle[3];
 943          }
 944       }
 945
 946       if (*ctx->cur != ')') {
 947          report_error( ctx, "Expected `)'" );
 948          return FALSE;
 949       }
 950
 951       ctx->cur++;
 952    }
 953
 954    /* Parse instruction name.
 955     */
 956    eat_opt_white( &ctx->cur );
 957    for (i = 0; i < TGSI_OPCODE_LAST; i++) {
 958       cur = ctx->cur;
 959
 960       info = tgsi_get_opcode_info( i );
 961       if (match_inst(&cur, &saturate, info)) {
 962          if (info->num_dst + info->num_src + info->is_tex == 0) {
 963             ctx->cur = cur;
 964             break;
 965          }
 966          else if (*cur == '\0' || eat_white( &cur )) {
 967             ctx->cur = cur;
 968             break;
 969          }
 970       }
 971    }
 972    if (i == TGSI_OPCODE_LAST) {
 973       if (has_label)
 974          report_error( ctx, "Unknown opcode" );
 975       else
 976          report_error( ctx, "Expected `DCL', `IMM' or a label" );
 977       return FALSE;
 978    }
 979
 980    inst.Instruction.Opcode = i;
 981    inst.Instruction.Saturate = saturate;
 982    inst.Instruction.NumDstRegs = info->num_dst;
 983    inst.Instruction.NumSrcRegs = info->num_src;
 984
 985    if (i >= TGSI_OPCODE_SAMPLE && i <= TGSI_OPCODE_GATHER4) {
 986       /*
 987        * These are not considered tex opcodes here (no additional
 988        * target argument) however we're required to set the Texture
 989        * bit so we can set the number of tex offsets (offsets aren't
 990        * actually handled here yet in any case).
 991        */
 992       inst.Instruction.Texture = 1;
 993       inst.Texture.Texture = TGSI_TEXTURE_UNKNOWN;
 994    }
 995
 996    /* Parse instruction operands.
 997     */
 998    for (i = 0; i < info->num_dst + info->num_src + info->is_tex; i++) {
 999       if (i > 0) {
1000          eat_opt_white( &ctx->cur );
1001          if (*ctx->cur != ',') {
1002             report_error( ctx, "Expected `,'" );
1003             return FALSE;
1004          }
1005          ctx->cur++;
1006          eat_opt_white( &ctx->cur );
1007       }
1008
1009       if (i < info->num_dst) {
1010          if (!parse_dst_operand( ctx, &inst.Dst[i] ))
1011             return FALSE;
1012       }
1013       else if (i < info->num_dst + info->num_src) {
1014          if (!parse_src_operand( ctx, &inst.Src[i - info->num_dst] ))
1015             return FALSE;
1016       }
1017       else {
1018          uint j;
1019
1020          for (j = 0; j < TGSI_TEXTURE_COUNT; j++) {
1021             if (str_match_nocase_whole( &ctx->cur, tgsi_texture_names[j] )) {
1022                inst.Instruction.Texture = 1;
1023                inst.Texture.Texture = j;
1024                break;
1025             }
1026          }
1027          if (j == TGSI_TEXTURE_COUNT) {
1028             report_error( ctx, "Expected texture target" );
1029             return FALSE;
1030          }
1031       }
1032    }
1033
1034    cur = ctx->cur;
1035    eat_opt_white( &cur );
1036    for (i = 0; info->is_tex && *cur == ','; i++) {
1037          cur++;
1038          eat_opt_white( &cur );
1039          ctx->cur = cur;
1040          if (!parse_texoffset_operand( ctx, &inst.TexOffsets[i] ))
1041             return FALSE;
1042          cur = ctx->cur;
1043          eat_opt_white( &cur );
1044    }
1045    inst.Texture.NumOffsets = i;
1046
1047    cur = ctx->cur;
1048    eat_opt_white( &cur );
1049    if (info->is_branch && *cur == ':') {
1050       uint target;
1051
1052       cur++;
1053       eat_opt_white( &cur );
1054       if (!parse_uint( &cur, &target )) {
1055          report_error( ctx, "Expected a label" );
1056          return FALSE;
1057       }
1058       inst.Instruction.Label = 1;
1059       inst.Label.Label = target;
1060       ctx->cur = cur;
1061    }
1062
1063    advance = tgsi_build_full_instruction(
1064       &inst,
1065       ctx->tokens_cur,
1066       ctx->header,
1067       (uint) (ctx->tokens_end - ctx->tokens_cur) );
1068    if (advance == 0)
1069       return FALSE;
1070    ctx->tokens_cur += advance;
1071
1072    return TRUE;
1073 }
1074
1075 /* parses a 4-touple of the form {x, y, z, w}
1076  * where x, y, z, w are numbers */
1077 static boolean parse_immediate_data(struct translate_ctx *ctx, unsigned type,
1078                                     union tgsi_immediate_data *values)
1079 {
1080    unsigned i;
1081    int ret;
1082
1083    eat_opt_white( &ctx->cur );
1084    if (*ctx->cur != '{') {
1085       report_error( ctx, "Expected `{'" );
1086       return FALSE;
1087    }
1088    ctx->cur++;
1089    for (i = 0; i < 4; i++) {
1090       eat_opt_white( &ctx->cur );
1091       if (i > 0) {
1092          if (*ctx->cur != ',') {
1093             report_error( ctx, "Expected `,'" );
1094             return FALSE;
1095          }
1096          ctx->cur++;
1097          eat_opt_white( &ctx->cur );
1098       }
1099
1100       switch (type) {
1101       case TGSI_IMM_FLOAT32:
1102          ret = parse_float(&ctx->cur, &values[i].Float);
1103          break;
1104       case TGSI_IMM_UINT32:
1105          ret = parse_uint(&ctx->cur, &values[i].Uint);
1106          break;
1107       case TGSI_IMM_INT32:
1108          ret = parse_int(&ctx->cur, &values[i].Int);
1109          break;
1110       default:
1111          assert(0);
1112          ret = FALSE;
1113          break;
1114       }
1115
1116       if (!ret) {
1117          report_error( ctx, "Expected immediate constant" );
1118          return FALSE;
1119       }
1120    }
1121    eat_opt_white( &ctx->cur );
1122    if (*ctx->cur != '}') {
1123       report_error( ctx, "Expected `}'" );
1124       return FALSE;
1125    }
1126    ctx->cur++;
1127
1128    return TRUE;
1129 }
1130
1131 static boolean parse_declaration( struct translate_ctx *ctx )
1132 {
1133    struct tgsi_full_declaration decl;
1134    uint file;
1135    struct parsed_dcl_bracket brackets[2];
1136    int num_brackets;
1137    uint writemask;
1138    const char *cur, *cur2;
1139    uint advance;
1140    boolean is_vs_input;
1141
1142    if (!eat_white( &ctx->cur )) {
1143       report_error( ctx, "Syntax error" );
1144       return FALSE;
1145    }
1146    if (!parse_register_dcl( ctx, &file, brackets, &num_brackets))
1147       return FALSE;
1148    if (!parse_opt_writemask( ctx, &writemask ))
1149       return FALSE;
1150
1151    decl = tgsi_default_full_declaration();
1152    decl.Declaration.File = file;
1153    decl.Declaration.UsageMask = writemask;
1154
1155    if (num_brackets == 1) {
1156       decl.Range.First = brackets[0].first;
1157       decl.Range.Last = brackets[0].last;
1158    } else {
1159       decl.Range.First = brackets[1].first;
1160       decl.Range.Last = brackets[1].last;
1161
1162       decl.Declaration.Dimension = 1;
1163       decl.Dim.Index2D = brackets[0].first;
1164    }
1165
1166    is_vs_input = (file == TGSI_FILE_INPUT &&
1167                   ctx->processor == TGSI_PROCESSOR_VERTEX);
1168
1169    cur = ctx->cur;
1170    eat_opt_white( &cur );
1171    if (*cur == ',') {
1172       cur2 = cur;
1173       cur2++;
1174       eat_opt_white( &cur2 );
1175       if (str_match_nocase_whole( &cur2, "ARRAY" )) {
1176          int arrayid;
1177          if (*cur2 != '(') {
1178             report_error( ctx, "Expected `('" );
1179             return FALSE;
1180          }
1181          cur2++;
1182          eat_opt_white( &cur2 );
1183          if (!parse_int( &cur2, &arrayid )) {
1184             report_error( ctx, "Expected `,'" );
1185             return FALSE;
1186          }
1187          eat_opt_white( &cur2 );
1188          if (*cur2 != ')') {
1189             report_error( ctx, "Expected `)'" );
1190             return FALSE;
1191          }
1192          cur2++;
1193          decl.Declaration.Array = 1;
1194          decl.Array.ArrayID = arrayid;
1195          ctx->cur = cur = cur2;
1196       }
1197    }
1198
1199    if (*cur == ',' && !is_vs_input) {
1200       uint i, j;
1201
1202       cur++;
1203       eat_opt_white( &cur );
1204       if (file == TGSI_FILE_RESOURCE) {
1205          for (i = 0; i < TGSI_TEXTURE_COUNT; i++) {
1206             if (str_match_nocase_whole(&cur, tgsi_texture_names[i])) {
1207                decl.Resource.Resource = i;
1208                break;
1209             }
1210          }
1211          if (i == TGSI_TEXTURE_COUNT) {
1212             report_error(ctx, "Expected texture target");
1213             return FALSE;
1214          }
1215
1216          cur2 = cur;
1217          eat_opt_white(&cur2);
1218          while (*cur2 == ',') {
1219             cur2++;
1220             eat_opt_white(&cur2);
1221             if (str_match_nocase_whole(&cur2, "RAW")) {
1222                decl.Resource.Raw = 1;
1223
1224             } else if (str_match_nocase_whole(&cur2, "WR")) {
1225                decl.Resource.Writable = 1;
1226
1227             } else {
1228                break;
1229             }
1230             cur = cur2;
1231             eat_opt_white(&cur2);
1232          }
1233
1234          ctx->cur = cur;
1235
1236       } else if (file == TGSI_FILE_SAMPLER_VIEW) {
1237          for (i = 0; i < TGSI_TEXTURE_COUNT; i++) {
1238             if (str_match_nocase_whole(&cur, tgsi_texture_names[i])) {
1239                decl.SamplerView.Resource = i;
1240                break;
1241             }
1242          }
1243          if (i == TGSI_TEXTURE_COUNT) {
1244             report_error(ctx, "Expected texture target");
1245             return FALSE;
1246          }
1247          eat_opt_white( &cur );
1248          if (*cur != ',') {
1249             report_error( ctx, "Expected `,'" );
1250             return FALSE;
1251          }
1252          ++cur;
1253          eat_opt_white( &cur );
1254          for (j = 0; j < 4; ++j) {
1255             for (i = 0; i < PIPE_TYPE_COUNT; ++i) {
1256                if (str_match_nocase_whole(&cur, tgsi_type_names[i])) {
1257                   switch (j) {
1258                   case 0:
1259                      decl.SamplerView.ReturnTypeX = i;
1260                      break;
1261                   case 1:
1262                      decl.SamplerView.ReturnTypeY = i;
1263                      break;
1264                   case 2:
1265                      decl.SamplerView.ReturnTypeZ = i;
1266                      break;
1267                   case 3:
1268                      decl.SamplerView.ReturnTypeW = i;
1269                      break;
1270                   default:
1271                      assert(0);
1272                   }
1273                   break;
1274                }
1275             }
1276             if (i == PIPE_TYPE_COUNT) {
1277                if (j == 0 || j >  2) {
1278                   report_error(ctx, "Expected type name");
1279                   return FALSE;
1280                }
1281                break;
1282             } else {
1283                cur2 = cur;
1284                eat_opt_white( &cur2 );
1285                if (*cur2 == ',') {
1286                   cur2++;
1287                   eat_opt_white( &cur2 );
1288                   cur = cur2;
1289                   continue;
1290                } else
1291                   break;
1292             }
1293          }
1294          if (j < 4) {
1295             decl.SamplerView.ReturnTypeY =
1296                decl.SamplerView.ReturnTypeZ =
1297                decl.SamplerView.ReturnTypeW =
1298                decl.SamplerView.ReturnTypeX;
1299          }
1300          ctx->cur = cur;
1301       } else {
1302          if (str_match_nocase_whole(&cur, "LOCAL")) {
1303             decl.Declaration.Local = 1;
1304             ctx->cur = cur;
1305          }
1306
1307          cur = ctx->cur;
1308          eat_opt_white( &cur );
1309          if (*cur == ',') {
1310             cur++;
1311             eat_opt_white( &cur );
1312
1313             for (i = 0; i < TGSI_SEMANTIC_COUNT; i++) {
1314                if (str_match_nocase_whole(&cur, tgsi_semantic_names[i])) {
1315                   uint index;
1316
1317                   cur2 = cur;
1318                   eat_opt_white( &cur2 );
1319                   if (*cur2 == '[') {
1320                      cur2++;
1321                      eat_opt_white( &cur2 );
1322                      if (!parse_uint( &cur2, &index )) {
1323                         report_error( ctx, "Expected literal integer" );
1324                         return FALSE;
1325                      }
1326                      eat_opt_white( &cur2 );
1327                      if (*cur2 != ']') {
1328                         report_error( ctx, "Expected `]'" );
1329                         return FALSE;
1330                      }
1331                      cur2++;
1332
1333                      decl.Semantic.Index = index;
1334
1335                      cur = cur2;
1336                   }
1337
1338                   decl.Declaration.Semantic = 1;
1339                   decl.Semantic.Name = i;
1340
1341                   ctx->cur = cur;
1342                   break;
1343                }
1344             }
1345          }
1346       }
1347    }
1348
1349    cur = ctx->cur;
1350    eat_opt_white( &cur );
1351    if (*cur == ',' && !is_vs_input) {
1352       uint i;
1353
1354       cur++;
1355       eat_opt_white( &cur );
1356       for (i = 0; i < TGSI_INTERPOLATE_COUNT; i++) {
1357          if (str_match_nocase_whole( &cur, tgsi_interpolate_names[i] )) {
1358             decl.Declaration.Interpolate = 1;
1359             decl.Interp.Interpolate = i;
1360
1361             ctx->cur = cur;
1362             break;
1363          }
1364       }
1365       if (i == TGSI_INTERPOLATE_COUNT) {
1366          report_error( ctx, "Expected semantic or interpolate attribute" );
1367          return FALSE;
1368       }
1369    }
1370
1371    advance = tgsi_build_full_declaration(
1372       &decl,
1373       ctx->tokens_cur,
1374       ctx->header,
1375       (uint) (ctx->tokens_end - ctx->tokens_cur) );
1376
1377    if (advance == 0)
1378       return FALSE;
1379    ctx->tokens_cur += advance;
1380
1381    return TRUE;
1382 }
1383
1384 static boolean parse_immediate( struct translate_ctx *ctx )
1385 {
1386    struct tgsi_full_immediate imm;
1387    uint advance;
1388    int type;
1389
1390    if (*ctx->cur == '[') {
1391       uint uindex;
1392
1393       ++ctx->cur;
1394
1395       eat_opt_white( &ctx->cur );
1396       if (!parse_uint( &ctx->cur, &uindex )) {
1397          report_error( ctx, "Expected literal unsigned integer" );
1398          return FALSE;
1399       }
1400
1401       if (uindex != ctx->num_immediates) {
1402          report_error( ctx, "Immediates must be sorted" );
1403          return FALSE;
1404       }
1405
1406       eat_opt_white( &ctx->cur );
1407       if (*ctx->cur != ']') {
1408          report_error( ctx, "Expected `]'" );
1409          return FALSE;
1410       }
1411
1412       ctx->cur++;
1413    }
1414
1415    if (!eat_white( &ctx->cur )) {
1416       report_error( ctx, "Syntax error" );
1417       return FALSE;
1418    }
1419    for (type = 0; type < Elements(tgsi_immediate_type_names); ++type) {
1420       if (str_match_nocase_whole(&ctx->cur, tgsi_immediate_type_names[type]))
1421          break;
1422    }
1423    if (type == Elements(tgsi_immediate_type_names)) {
1424       report_error( ctx, "Expected immediate type" );
1425       return FALSE;
1426    }
1427
1428    imm = tgsi_default_full_immediate();
1429    imm.Immediate.NrTokens += 4;
1430    imm.Immediate.DataType = type;
1431    parse_immediate_data(ctx, type, imm.u);
1432
1433    advance = tgsi_build_full_immediate(
1434       &imm,
1435       ctx->tokens_cur,
1436       ctx->header,
1437       (uint) (ctx->tokens_end - ctx->tokens_cur) );
1438    if (advance == 0)
1439       return FALSE;
1440    ctx->tokens_cur += advance;
1441
1442    ctx->num_immediates++;
1443
1444    return TRUE;
1445 }
1446
1447 static boolean
1448 parse_primitive( const char **pcur, uint *primitive )
1449 {
1450    uint i;
1451
1452    for (i = 0; i < PIPE_PRIM_MAX; i++) {
1453       const char *cur = *pcur;
1454
1455       if (str_match_nocase_whole( &cur, tgsi_primitive_names[i])) {
1456          *primitive = i;
1457          *pcur = cur;
1458          return TRUE;
1459       }
1460    }
1461    return FALSE;
1462 }
1463
1464 static boolean
1465 parse_fs_coord_origin( const char **pcur, uint *fs_coord_origin )
1466 {
1467    uint i;
1468
1469    for (i = 0; i < Elements(tgsi_fs_coord_origin_names); i++) {
1470       const char *cur = *pcur;
1471
1472       if (str_match_nocase_whole( &cur, tgsi_fs_coord_origin_names[i])) {
1473          *fs_coord_origin = i;
1474          *pcur = cur;
1475          return TRUE;
1476       }
1477    }
1478    return FALSE;
1479 }
1480
1481 static boolean
1482 parse_fs_coord_pixel_center( const char **pcur, uint *fs_coord_pixel_center )
1483 {
1484    uint i;
1485
1486    for (i = 0; i < Elements(tgsi_fs_coord_pixel_center_names); i++) {
1487       const char *cur = *pcur;
1488
1489       if (str_match_nocase_whole( &cur, tgsi_fs_coord_pixel_center_names[i])) {
1490          *fs_coord_pixel_center = i;
1491          *pcur = cur;
1492          return TRUE;
1493       }
1494    }
1495    return FALSE;
1496 }
1497
1498
1499 static boolean parse_property( struct translate_ctx *ctx )
1500 {
1501    struct tgsi_full_property prop;
1502    uint property_name;
1503    uint values[8];
1504    uint advance;
1505    char id[64];
1506
1507    if (!eat_white( &ctx->cur )) {
1508       report_error( ctx, "Syntax error" );
1509       return FALSE;
1510    }
1511    if (!parse_identifier( &ctx->cur, id )) {
1512       report_error( ctx, "Syntax error" );
1513       return FALSE;
1514    }
1515    for (property_name = 0; property_name < TGSI_PROPERTY_COUNT;
1516         ++property_name) {
1517       if (streq_nocase_uprcase(tgsi_property_names[property_name], id)) {
1518          break;
1519       }
1520    }
1521    if (property_name >= TGSI_PROPERTY_COUNT) {
1522       debug_printf( "\nError: Unknown property : '%s'", id );
1523       return FALSE;
1524    }
1525
1526    eat_opt_white( &ctx->cur );
1527    switch(property_name) {
1528    case TGSI_PROPERTY_GS_INPUT_PRIM:
1529    case TGSI_PROPERTY_GS_OUTPUT_PRIM:
1530       if (!parse_primitive(&ctx->cur, &values[0] )) {
1531          report_error( ctx, "Unknown primitive name as property!" );
1532          return FALSE;
1533       }
1534       if (property_name == TGSI_PROPERTY_GS_INPUT_PRIM &&
1535           ctx->processor == TGSI_PROCESSOR_GEOMETRY) {
1536          ctx->implied_array_size = u_vertices_per_prim(values[0]);
1537       }
1538       break;
1539    case TGSI_PROPERTY_FS_COORD_ORIGIN:
1540       if (!parse_fs_coord_origin(&ctx->cur, &values[0] )) {
1541          report_error( ctx, "Unknown coord origin as property: must be UPPER_LEFT or LOWER_LEFT!" );
1542          return FALSE;
1543       }
1544       break;
1545    case TGSI_PROPERTY_FS_COORD_PIXEL_CENTER:
1546       if (!parse_fs_coord_pixel_center(&ctx->cur, &values[0] )) {
1547          report_error( ctx, "Unknown coord pixel center as property: must be HALF_INTEGER or INTEGER!" );
1548          return FALSE;
1549       }
1550       break;
1551    case TGSI_PROPERTY_FS_COLOR0_WRITES_ALL_CBUFS:
1552    default:
1553       if (!parse_uint(&ctx->cur, &values[0] )) {
1554          report_error( ctx, "Expected unsigned integer as property!" );
1555          return FALSE;
1556       }
1557    }
1558
1559    prop = tgsi_default_full_property();
1560    prop.Property.PropertyName = property_name;
1561    prop.Property.NrTokens += 1;
1562    prop.u[0].Data = values[0];
1563
1564    advance = tgsi_build_full_property(
1565       &prop,
1566       ctx->tokens_cur,
1567       ctx->header,
1568       (uint) (ctx->tokens_end - ctx->tokens_cur) );
1569    if (advance == 0)
1570       return FALSE;
1571    ctx->tokens_cur += advance;
1572
1573    return TRUE;
1574 }
1575
1576
1577 static boolean translate( struct translate_ctx *ctx )
1578 {
1579    eat_opt_white( &ctx->cur );
1580    if (!parse_header( ctx ))
1581       return FALSE;
1582
1583    while (*ctx->cur != '\0') {
1584       uint label_val = 0;
1585       if (!eat_white( &ctx->cur )) {
1586          report_error( ctx, "Syntax error" );
1587          return FALSE;
1588       }
1589
1590       if (*ctx->cur == '\0')
1591          break;
1592       if (parse_label( ctx, &label_val )) {
1593          if (!parse_instruction( ctx, TRUE ))
1594             return FALSE;
1595       }
1596       else if (str_match_nocase_whole( &ctx->cur, "DCL" )) {
1597          if (!parse_declaration( ctx ))
1598             return FALSE;
1599       }
1600       else if (str_match_nocase_whole( &ctx->cur, "IMM" )) {
1601          if (!parse_immediate( ctx ))
1602             return FALSE;
1603       }
1604       else if (str_match_nocase_whole( &ctx->cur, "PROPERTY" )) {
1605          if (!parse_property( ctx ))
1606             return FALSE;
1607       }
1608       else if (!parse_instruction( ctx, FALSE )) {
1609          return FALSE;
1610       }
1611    }
1612
1613    return TRUE;
1614 }
1615
1616 boolean
1617 tgsi_text_translate(
1618    const char *text,
1619    struct tgsi_token *tokens,
1620    uint num_tokens )
1621 {
1622    struct translate_ctx ctx = {0};
1623
1624    ctx.text = text;
1625    ctx.cur = text;
1626    ctx.tokens = tokens;
1627    ctx.tokens_cur = tokens;
1628    ctx.tokens_end = tokens + num_tokens;
1629
1630    if (!translate( &ctx ))
1631       return FALSE;
1632
1633    return tgsi_sanity_check( tokens );
1634 }