src/gallium/auxiliary/tgsi/tgsi_dump.c

   1 /**************************************************************************
   2  *
   3  * Copyright 2007-2008 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_string.h"
  30 #include "util/u_math.h"
  31 #include "util/u_memory.h"
  32 #include "tgsi_dump.h"
  33 #include "tgsi_info.h"
  34 #include "tgsi_iterate.h"
  35
  36
  37 /** Number of spaces to indent for IF/LOOP/etc */
  38 static const int indent_spaces = 3;
  39
  40
  41 struct dump_ctx
  42 {
  43    struct tgsi_iterate_context iter;
  44
  45    uint instno;
  46    int indent;
  47
  48    uint indentation;
  49
  50    void (*printf)(struct dump_ctx *ctx, const char *format, ...);
  51 };
  52
  53 static void
  54 dump_ctx_printf(struct dump_ctx *ctx, const char *format, ...)
  55 {
  56    va_list ap;
  57    (void)ctx;
  58    va_start(ap, format);
  59    _debug_vprintf(format, ap);
  60    va_end(ap);
  61 }
  62
  63 static void
  64 dump_enum(
  65    struct dump_ctx *ctx,
  66    uint e,
  67    const char **enums,
  68    uint enum_count )
  69 {
  70    if (e >= enum_count)
  71       ctx->printf( ctx, "%u", e );
  72    else
  73       ctx->printf( ctx, "%s", enums[e] );
  74 }
  75
  76 #define EOL()           ctx->printf( ctx, "\n" )
  77 #define TXT(S)          ctx->printf( ctx, "%s", S )
  78 #define CHR(C)          ctx->printf( ctx, "%c", C )
  79 #define UIX(I)          ctx->printf( ctx, "0x%x", I )
  80 #define UID(I)          ctx->printf( ctx, "%u", I )
  81 #define INSTID(I)          ctx->printf( ctx, "% 3u", I )
  82 #define SID(I)          ctx->printf( ctx, "%d", I )
  83 #define FLT(F)          ctx->printf( ctx, "%10.4f", F )
  84 #define ENM(E,ENUMS)    dump_enum( ctx, E, ENUMS, sizeof( ENUMS ) / sizeof( *ENUMS ) )
  85
  86 static const char *processor_type_names[] =
  87 {
  88    "FRAG",
  89    "VERT",
  90    "GEOM"
  91 };
  92
  93 const char *
  94 tgsi_file_names[TGSI_FILE_COUNT] =
  95 {
  96    "NULL",
  97    "CONST",
  98    "IN",
  99    "OUT",
 100    "TEMP",
 101    "SAMP",
 102    "ADDR",
 103    "IMM",
 104    "PRED",
 105    "SV",
 106    "IMMX",
 107    "TEMPX",
 108    "RES"
 109 };
 110
 111 static const char *interpolate_names[] =
 112 {
 113    "CONSTANT",
 114    "LINEAR",
 115    "PERSPECTIVE"
 116 };
 117
 118 static const char *semantic_names[] =
 119 {
 120    "POSITION",
 121    "COLOR",
 122    "BCOLOR",
 123    "FOG",
 124    "PSIZE",
 125    "GENERIC",
 126    "NORMAL",
 127    "FACE",
 128    "EDGEFLAG",
 129    "PRIM_ID",
 130    "INSTANCEID",
 131    "STENCIL"
 132 };
 133
 134 static const char *immediate_type_names[] =
 135 {
 136    "FLT32",
 137    "UINT32",
 138    "INT32"
 139 };
 140
 141 const char *
 142 tgsi_swizzle_names[4] =
 143 {
 144    "x",
 145    "y",
 146    "z",
 147    "w"
 148 };
 149
 150 const char *
 151 tgsi_texture_names[TGSI_TEXTURE_COUNT] =
 152 {
 153    "UNKNOWN",
 154    "1D",
 155    "2D",
 156    "3D",
 157    "CUBE",
 158    "RECT",
 159    "SHADOW1D",
 160    "SHADOW2D",
 161    "SHADOWRECT",
 162    "1DARRAY",
 163    "2DARRAY"
 164 };
 165
 166 const char *tgsi_property_names[TGSI_PROPERTY_COUNT] =
 167 {
 168    "GS_INPUT_PRIMITIVE",
 169    "GS_OUTPUT_PRIMITIVE",
 170    "GS_MAX_OUTPUT_VERTICES",
 171    "FS_COORD_ORIGIN",
 172    "FS_COORD_PIXEL_CENTER",
 173    "FS_COLOR0_WRITES_ALL_CBUFS",
 174 };
 175
 176 static const char *tgsi_type_names[] =
 177 {
 178    "UNORM",
 179    "SNORM",
 180    "SINT",
 181    "UINT",
 182    "FLOAT"
 183 };
 184
 185 const char *tgsi_primitive_names[PIPE_PRIM_MAX] =
 186 {
 187    "POINTS",
 188    "LINES",
 189    "LINE_LOOP",
 190    "LINE_STRIP",
 191    "TRIANGLES",
 192    "TRIANGLE_STRIP",
 193    "TRIANGLE_FAN",
 194    "QUADS",
 195    "QUAD_STRIP",
 196    "POLYGON",
 197    "LINES_ADJACENCY",
 198    "LINE_STRIP_ADJACENCY",
 199    "TRIANGLES_ADJACENCY",
 200    "TRIANGLE_STRIP_ADJACENCY"
 201 };
 202
 203 const char *tgsi_fs_coord_origin_names[2] =
 204 {
 205    "UPPER_LEFT",
 206    "LOWER_LEFT"
 207 };
 208
 209 const char *tgsi_fs_coord_pixel_center_names[2] =
 210 {
 211    "HALF_INTEGER",
 212    "INTEGER"
 213 };
 214
 215
 216 static void
 217 _dump_register_src(
 218    struct dump_ctx *ctx,
 219    const struct tgsi_full_src_register *src )
 220 {
 221    ENM(src->Register.File, tgsi_file_names);
 222    if (src->Register.Dimension) {
 223       if (src->Dimension.Indirect) {
 224          CHR( '[' );
 225          ENM( src->DimIndirect.File, tgsi_file_names );
 226          CHR( '[' );
 227          SID( src->DimIndirect.Index );
 228          TXT( "]." );
 229          ENM( src->DimIndirect.SwizzleX, tgsi_swizzle_names );
 230          if (src->Dimension.Index != 0) {
 231             if (src->Dimension.Index > 0)
 232                CHR( '+' );
 233             SID( src->Dimension.Index );
 234          }
 235          CHR( ']' );
 236       } else {
 237          CHR('[');
 238          SID(src->Dimension.Index);
 239          CHR(']');
 240       }
 241    }
 242    if (src->Register.Indirect) {
 243       CHR( '[' );
 244       ENM( src->Indirect.File, tgsi_file_names );
 245       CHR( '[' );
 246       SID( src->Indirect.Index );
 247       TXT( "]." );
 248       ENM( src->Indirect.SwizzleX, tgsi_swizzle_names );
 249       if (src->Register.Index != 0) {
 250          if (src->Register.Index > 0)
 251             CHR( '+' );
 252          SID( src->Register.Index );
 253       }
 254       CHR( ']' );
 255    } else {
 256       CHR( '[' );
 257       SID( src->Register.Index );
 258       CHR( ']' );
 259    }
 260 }
 261
 262
 263 static void
 264 _dump_register_dst(
 265    struct dump_ctx *ctx,
 266    const struct tgsi_full_dst_register *dst )
 267 {
 268    ENM(dst->Register.File, tgsi_file_names);
 269    if (dst->Register.Dimension) {
 270       if (dst->Dimension.Indirect) {
 271          CHR( '[' );
 272          ENM( dst->DimIndirect.File, tgsi_file_names );
 273          CHR( '[' );
 274          SID( dst->DimIndirect.Index );
 275          TXT( "]." );
 276          ENM( dst->DimIndirect.SwizzleX, tgsi_swizzle_names );
 277          if (dst->Dimension.Index != 0) {
 278             if (dst->Dimension.Index > 0)
 279                CHR( '+' );
 280             SID( dst->Dimension.Index );
 281          }
 282          CHR( ']' );
 283       } else {
 284          CHR('[');
 285          SID(dst->Dimension.Index);
 286          CHR(']');
 287       }
 288    }
 289    if (dst->Register.Indirect) {
 290       CHR( '[' );
 291       ENM( dst->Indirect.File, tgsi_file_names );
 292       CHR( '[' );
 293       SID( dst->Indirect.Index );
 294       TXT( "]." );
 295       ENM( dst->Indirect.SwizzleX, tgsi_swizzle_names );
 296       if (dst->Register.Index != 0) {
 297          if (dst->Register.Index > 0)
 298             CHR( '+' );
 299          SID( dst->Register.Index );
 300       }
 301       CHR( ']' );
 302    } else {
 303       CHR( '[' );
 304       SID( dst->Register.Index );
 305       CHR( ']' );
 306    }
 307 }
 308 static void
 309 _dump_writemask(
 310    struct dump_ctx *ctx,
 311    uint writemask )
 312 {
 313    if (writemask != TGSI_WRITEMASK_XYZW) {
 314       CHR( '.' );
 315       if (writemask & TGSI_WRITEMASK_X)
 316          CHR( 'x' );
 317       if (writemask & TGSI_WRITEMASK_Y)
 318          CHR( 'y' );
 319       if (writemask & TGSI_WRITEMASK_Z)
 320          CHR( 'z' );
 321       if (writemask & TGSI_WRITEMASK_W)
 322          CHR( 'w' );
 323    }
 324 }
 325
 326 static void
 327 dump_imm_data(struct tgsi_iterate_context *iter,
 328               union tgsi_immediate_data *data,
 329               unsigned num_tokens,
 330               unsigned data_type)
 331 {
 332    struct dump_ctx *ctx = (struct dump_ctx *)iter;
 333    unsigned i ;
 334
 335    TXT( " {" );
 336
 337    assert( num_tokens <= 4 );
 338    for (i = 0; i < num_tokens; i++) {
 339       switch (data_type) {
 340       case TGSI_IMM_FLOAT32:
 341          FLT( data[i].Float );
 342          break;
 343       case TGSI_IMM_UINT32:
 344          UID(data[i].Uint);
 345          break;
 346       case TGSI_IMM_INT32:
 347          SID(data[i].Int);
 348          break;
 349       default:
 350          assert( 0 );
 351       }
 352
 353       if (i < num_tokens - 1)
 354          TXT( ", " );
 355    }
 356    TXT( "}" );
 357 }
 358
 359 static boolean
 360 iter_declaration(
 361    struct tgsi_iterate_context *iter,
 362    struct tgsi_full_declaration *decl )
 363 {
 364    struct dump_ctx *ctx = (struct dump_ctx *)iter;
 365
 366    assert(Elements(semantic_names) == TGSI_SEMANTIC_COUNT);
 367    assert(Elements(interpolate_names) == TGSI_INTERPOLATE_COUNT);
 368
 369    TXT( "DCL " );
 370
 371    ENM(decl->Declaration.File, tgsi_file_names);
 372
 373    /* all geometry shader inputs are two dimensional */
 374    if (decl->Declaration.File == TGSI_FILE_INPUT &&
 375        iter->processor.Processor == TGSI_PROCESSOR_GEOMETRY) {
 376       TXT("[]");
 377    }
 378
 379    if (decl->Declaration.Dimension) {
 380       CHR('[');
 381       SID(decl->Dim.Index2D);
 382       CHR(']');
 383    }
 384
 385    CHR('[');
 386    SID(decl->Range.First);
 387    if (decl->Range.First != decl->Range.Last) {
 388       TXT("..");
 389       SID(decl->Range.Last);
 390    }
 391    CHR(']');
 392
 393    _dump_writemask(
 394       ctx,
 395       decl->Declaration.UsageMask );
 396
 397    if (decl->Declaration.Semantic) {
 398       TXT( ", " );
 399       ENM( decl->Semantic.Name, semantic_names );
 400       if (decl->Semantic.Index != 0 ||
 401           decl->Semantic.Name == TGSI_SEMANTIC_GENERIC) {
 402          CHR( '[' );
 403          UID( decl->Semantic.Index );
 404          CHR( ']' );
 405       }
 406    }
 407
 408    if (decl->Declaration.File == TGSI_FILE_RESOURCE) {
 409       TXT(", ");
 410       ENM(decl->Resource.Resource, tgsi_texture_names);
 411       TXT(", ");
 412       if ((decl->Resource.ReturnTypeX == decl->Resource.ReturnTypeY) &&
 413           (decl->Resource.ReturnTypeX == decl->Resource.ReturnTypeZ) &&
 414           (decl->Resource.ReturnTypeX == decl->Resource.ReturnTypeW)) {
 415          ENM(decl->Resource.ReturnTypeX, tgsi_type_names);
 416       } else {
 417          ENM(decl->Resource.ReturnTypeX, tgsi_type_names);
 418          TXT(", ");
 419          ENM(decl->Resource.ReturnTypeY, tgsi_type_names);
 420          TXT(", ");
 421          ENM(decl->Resource.ReturnTypeZ, tgsi_type_names);
 422          TXT(", ");
 423          ENM(decl->Resource.ReturnTypeW, tgsi_type_names);
 424       }
 425
 426    }
 427
 428    if (iter->processor.Processor == TGSI_PROCESSOR_FRAGMENT &&
 429        decl->Declaration.File == TGSI_FILE_INPUT)
 430    {
 431       TXT( ", " );
 432       ENM( decl->Declaration.Interpolate, interpolate_names );
 433    }
 434
 435    if (decl->Declaration.Centroid) {
 436       TXT( ", CENTROID" );
 437    }
 438
 439    if (decl->Declaration.Invariant) {
 440       TXT( ", INVARIANT" );
 441    }
 442
 443    if (decl->Declaration.CylindricalWrap) {
 444       TXT(", CYLWRAP_");
 445       if (decl->Declaration.CylindricalWrap & TGSI_CYLINDRICAL_WRAP_X) {
 446          CHR('X');
 447       }
 448       if (decl->Declaration.CylindricalWrap & TGSI_CYLINDRICAL_WRAP_Y) {
 449          CHR('Y');
 450       }
 451       if (decl->Declaration.CylindricalWrap & TGSI_CYLINDRICAL_WRAP_Z) {
 452          CHR('Z');
 453       }
 454       if (decl->Declaration.CylindricalWrap & TGSI_CYLINDRICAL_WRAP_W) {
 455          CHR('W');
 456       }
 457    }
 458
 459    if (decl->Declaration.File == TGSI_FILE_IMMEDIATE_ARRAY) {
 460       unsigned i;
 461       char range_indent[4];
 462
 463       TXT(" {");
 464
 465       if (decl->Range.Last < 10)
 466          range_indent[0] = '\0';
 467       else if (decl->Range.Last < 100) {
 468          range_indent[0] = ' ';
 469          range_indent[1] = '\0';
 470       } else if (decl->Range.Last < 1000) {
 471          range_indent[0] = ' ';
 472          range_indent[1] = ' ';
 473          range_indent[2] = '\0';
 474       } else {
 475          range_indent[0] = ' ';
 476          range_indent[1] = ' ';
 477          range_indent[2] = ' ';
 478          range_indent[3] = '\0';
 479       }
 480
 481       dump_imm_data(iter, decl->ImmediateData.u,
 482                     4, TGSI_IMM_FLOAT32);
 483       for(i = 1; i <= decl->Range.Last; ++i) {
 484          /* indent by strlen of:
 485           *   "DCL IMMX[0..1] {" */
 486          CHR('\n');
 487          TXT( "                " );
 488          TXT( range_indent );
 489          dump_imm_data(iter, decl->ImmediateData.u + i,
 490                        4, TGSI_IMM_FLOAT32);
 491       }
 492
 493       TXT(" }");
 494    }
 495
 496    EOL();
 497
 498    return TRUE;
 499 }
 500
 501 void
 502 tgsi_dump_declaration(
 503    const struct tgsi_full_declaration *decl )
 504 {
 505    struct dump_ctx ctx;
 506
 507    ctx.printf = dump_ctx_printf;
 508
 509    iter_declaration( &ctx.iter, (struct tgsi_full_declaration *)decl );
 510 }
 511
 512 static boolean
 513 iter_property(
 514    struct tgsi_iterate_context *iter,
 515    struct tgsi_full_property *prop )
 516 {
 517    int i;
 518    struct dump_ctx *ctx = (struct dump_ctx *)iter;
 519
 520    assert(Elements(tgsi_property_names) == TGSI_PROPERTY_COUNT);
 521
 522    TXT( "PROPERTY " );
 523    ENM(prop->Property.PropertyName, tgsi_property_names);
 524
 525    if (prop->Property.NrTokens > 1)
 526       TXT(" ");
 527
 528    for (i = 0; i < prop->Property.NrTokens - 1; ++i) {
 529       switch (prop->Property.PropertyName) {
 530       case TGSI_PROPERTY_GS_INPUT_PRIM:
 531       case TGSI_PROPERTY_GS_OUTPUT_PRIM:
 532          ENM(prop->u[i].Data, tgsi_primitive_names);
 533          break;
 534       case TGSI_PROPERTY_FS_COORD_ORIGIN:
 535          ENM(prop->u[i].Data, tgsi_fs_coord_origin_names);
 536          break;
 537       case TGSI_PROPERTY_FS_COORD_PIXEL_CENTER:
 538          ENM(prop->u[i].Data, tgsi_fs_coord_pixel_center_names);
 539          break;
 540       default:
 541          SID( prop->u[i].Data );
 542          break;
 543       }
 544       if (i < prop->Property.NrTokens - 2)
 545          TXT( ", " );
 546    }
 547    EOL();
 548
 549    return TRUE;
 550 }
 551
 552 void tgsi_dump_property(
 553    const struct tgsi_full_property *prop )
 554 {
 555    struct dump_ctx ctx;
 556
 557    ctx.printf = dump_ctx_printf;
 558
 559    iter_property( &ctx.iter, (struct tgsi_full_property *)prop );
 560 }
 561
 562 static boolean
 563 iter_immediate(
 564    struct tgsi_iterate_context *iter,
 565    struct tgsi_full_immediate *imm )
 566 {
 567    struct dump_ctx *ctx = (struct dump_ctx *) iter;
 568
 569    TXT( "IMM " );
 570    ENM( imm->Immediate.DataType, immediate_type_names );
 571
 572    dump_imm_data(iter, imm->u, imm->Immediate.NrTokens - 1,
 573                  imm->Immediate.DataType);
 574
 575    EOL();
 576
 577    return TRUE;
 578 }
 579
 580 void
 581 tgsi_dump_immediate(
 582    const struct tgsi_full_immediate *imm )
 583 {
 584    struct dump_ctx ctx;
 585
 586    ctx.printf = dump_ctx_printf;
 587
 588    iter_immediate( &ctx.iter, (struct tgsi_full_immediate *)imm );
 589 }
 590
 591 static boolean
 592 iter_instruction(
 593    struct tgsi_iterate_context *iter,
 594    struct tgsi_full_instruction *inst )
 595 {
 596    struct dump_ctx *ctx = (struct dump_ctx *) iter;
 597    uint instno = ctx->instno++;
 598    const struct tgsi_opcode_info *info = tgsi_get_opcode_info( inst->Instruction.Opcode );
 599    uint i;
 600    boolean first_reg = TRUE;
 601
 602    INSTID( instno );
 603    TXT( ": " );
 604
 605    ctx->indent -= info->pre_dedent;
 606    for(i = 0; (int)i < ctx->indent; ++i)
 607       TXT( "  " );
 608    ctx->indent += info->post_indent;
 609
 610    if (inst->Instruction.Predicate) {
 611       CHR( '(' );
 612
 613       if (inst->Predicate.Negate)
 614          CHR( '!' );
 615
 616       TXT( "PRED[" );
 617       SID( inst->Predicate.Index );
 618       CHR( ']' );
 619
 620       if (inst->Predicate.SwizzleX != TGSI_SWIZZLE_X ||
 621           inst->Predicate.SwizzleY != TGSI_SWIZZLE_Y ||
 622           inst->Predicate.SwizzleZ != TGSI_SWIZZLE_Z ||
 623           inst->Predicate.SwizzleW != TGSI_SWIZZLE_W) {
 624          CHR( '.' );
 625          ENM( inst->Predicate.SwizzleX, tgsi_swizzle_names );
 626          ENM( inst->Predicate.SwizzleY, tgsi_swizzle_names );
 627          ENM( inst->Predicate.SwizzleZ, tgsi_swizzle_names );
 628          ENM( inst->Predicate.SwizzleW, tgsi_swizzle_names );
 629       }
 630
 631       TXT( ") " );
 632    }
 633
 634    TXT( info->mnemonic );
 635
 636    switch (inst->Instruction.Saturate) {
 637    case TGSI_SAT_NONE:
 638       break;
 639    case TGSI_SAT_ZERO_ONE:
 640       TXT( "_SAT" );
 641       break;
 642    case TGSI_SAT_MINUS_PLUS_ONE:
 643       TXT( "_SATNV" );
 644       break;
 645    default:
 646       assert( 0 );
 647    }
 648
 649    for (i = 0; i < inst->Instruction.NumDstRegs; i++) {
 650       const struct tgsi_full_dst_register *dst = &inst->Dst[i];
 651
 652       if (!first_reg)
 653          CHR( ',' );
 654       CHR( ' ' );
 655
 656       _dump_register_dst( ctx, dst );
 657       _dump_writemask( ctx, dst->Register.WriteMask );
 658
 659       first_reg = FALSE;
 660    }
 661
 662    for (i = 0; i < inst->Instruction.NumSrcRegs; i++) {
 663       const struct tgsi_full_src_register *src = &inst->Src[i];
 664
 665       if (!first_reg)
 666          CHR( ',' );
 667       CHR( ' ' );
 668
 669       if (src->Register.Negate)
 670          CHR( '-' );
 671       if (src->Register.Absolute)
 672          CHR( '|' );
 673
 674       _dump_register_src(ctx, src);
 675
 676       if (src->Register.SwizzleX != TGSI_SWIZZLE_X ||
 677           src->Register.SwizzleY != TGSI_SWIZZLE_Y ||
 678           src->Register.SwizzleZ != TGSI_SWIZZLE_Z ||
 679           src->Register.SwizzleW != TGSI_SWIZZLE_W) {
 680          CHR( '.' );
 681          ENM( src->Register.SwizzleX, tgsi_swizzle_names );
 682          ENM( src->Register.SwizzleY, tgsi_swizzle_names );
 683          ENM( src->Register.SwizzleZ, tgsi_swizzle_names );
 684          ENM( src->Register.SwizzleW, tgsi_swizzle_names );
 685       }
 686
 687       if (src->Register.Absolute)
 688          CHR( '|' );
 689
 690       first_reg = FALSE;
 691    }
 692
 693    if (inst->Instruction.Texture) {
 694       TXT( ", " );
 695       ENM( inst->Texture.Texture, tgsi_texture_names );
 696    }
 697
 698    switch (inst->Instruction.Opcode) {
 699    case TGSI_OPCODE_IF:
 700    case TGSI_OPCODE_ELSE:
 701    case TGSI_OPCODE_BGNLOOP:
 702    case TGSI_OPCODE_ENDLOOP:
 703    case TGSI_OPCODE_CAL:
 704       TXT( " :" );
 705       UID( inst->Label.Label );
 706       break;
 707    }
 708
 709    /* update indentation */
 710    if (inst->Instruction.Opcode == TGSI_OPCODE_IF ||
 711        inst->Instruction.Opcode == TGSI_OPCODE_ELSE ||
 712        inst->Instruction.Opcode == TGSI_OPCODE_BGNLOOP) {
 713       ctx->indentation += indent_spaces;
 714    }
 715
 716    EOL();
 717
 718    return TRUE;
 719 }
 720
 721 void
 722 tgsi_dump_instruction(
 723    const struct tgsi_full_instruction *inst,
 724    uint instno )
 725 {
 726    struct dump_ctx ctx;
 727
 728    ctx.instno = instno;
 729    ctx.indent = 0;
 730    ctx.printf = dump_ctx_printf;
 731    ctx.indentation = 0;
 732
 733    iter_instruction( &ctx.iter, (struct tgsi_full_instruction *)inst );
 734 }
 735
 736 static boolean
 737 prolog(
 738    struct tgsi_iterate_context *iter )
 739 {
 740    struct dump_ctx *ctx = (struct dump_ctx *) iter;
 741    ENM( iter->processor.Processor, processor_type_names );
 742    EOL();
 743    return TRUE;
 744 }
 745
 746 void
 747 tgsi_dump(
 748    const struct tgsi_token *tokens,
 749    uint flags )
 750 {
 751    struct dump_ctx ctx;
 752
 753    ctx.iter.prolog = prolog;
 754    ctx.iter.iterate_instruction = iter_instruction;
 755    ctx.iter.iterate_declaration = iter_declaration;
 756    ctx.iter.iterate_immediate = iter_immediate;
 757    ctx.iter.iterate_property = iter_property;
 758    ctx.iter.epilog = NULL;
 759
 760    ctx.instno = 0;
 761    ctx.indent = 0;
 762    ctx.printf = dump_ctx_printf;
 763    ctx.indentation = 0;
 764
 765    tgsi_iterate_shader( tokens, &ctx.iter );
 766 }
 767
 768 struct str_dump_ctx
 769 {
 770    struct dump_ctx base;
 771    char *str;
 772    char *ptr;
 773    int left;
 774 };
 775
 776 static void
 777 str_dump_ctx_printf(struct dump_ctx *ctx, const char *format, ...)
 778 {
 779    struct str_dump_ctx *sctx = (struct str_dump_ctx *)ctx;
 780
 781    if(sctx->left > 1) {
 782       int written;
 783       va_list ap;
 784       va_start(ap, format);
 785       written = util_vsnprintf(sctx->ptr, sctx->left, format, ap);
 786       va_end(ap);
 787
 788       /* Some complicated logic needed to handle the return value of
 789        * vsnprintf:
 790        */
 791       if (written > 0) {
 792          written = MIN2(sctx->left, written);
 793          sctx->ptr += written;
 794          sctx->left -= written;
 795       }
 796    }
 797 }
 798
 799 void
 800 tgsi_dump_str(
 801    const struct tgsi_token *tokens,
 802    uint flags,
 803    char *str,
 804    size_t size)
 805 {
 806    struct str_dump_ctx ctx;
 807
 808    ctx.base.iter.prolog = prolog;
 809    ctx.base.iter.iterate_instruction = iter_instruction;
 810    ctx.base.iter.iterate_declaration = iter_declaration;
 811    ctx.base.iter.iterate_immediate = iter_immediate;
 812    ctx.base.iter.iterate_property = iter_property;
 813    ctx.base.iter.epilog = NULL;
 814
 815    ctx.base.instno = 0;
 816    ctx.base.indent = 0;
 817    ctx.base.printf = &str_dump_ctx_printf;
 818    ctx.base.indentation = 0;
 819
 820    ctx.str = str;
 821    ctx.str[0] = 0;
 822    ctx.ptr = str;
 823    ctx.left = (int)size;
 824
 825    tgsi_iterate_shader( tokens, &ctx.base.iter );
 826 }