src/gallium/auxiliary/tgsi/tgsi_dump.c

   1 /**************************************************************************
   2  *
   3  * Copyright 2007-2008 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_string.h"
  30 #include "util/u_math.h"
  31 #include "util/u_memory.h"
  32 #include "util/u_math.h"
  33 #include "tgsi_dump.h"
  34 #include "tgsi_info.h"
  35 #include "tgsi_iterate.h"
  36 #include "tgsi_strings.h"
  37
  38
  39 /** Number of spaces to indent for IF/LOOP/etc */
  40 static const int indent_spaces = 3;
  41
  42
  43 struct dump_ctx
  44 {
  45    struct tgsi_iterate_context iter;
  46
  47    boolean dump_float_as_hex;
  48
  49    uint instno;
  50    uint immno;
  51    int indent;
  52
  53    uint indentation;
  54    FILE *file;
  55
  56    void (*dump_printf)(struct dump_ctx *ctx, const char *format, ...);
  57 };
  58
  59 static void
  60 dump_ctx_printf(struct dump_ctx *ctx, const char *format, ...)
  61 {
  62    va_list ap;
  63    (void)ctx;
  64    va_start(ap, format);
  65    if (ctx->file)
  66       vfprintf(ctx->file, format, ap);
  67    else
  68       _debug_vprintf(format, ap);
  69    va_end(ap);
  70 }
  71
  72 static void
  73 dump_enum(
  74    struct dump_ctx *ctx,
  75    uint e,
  76    const char **enums,
  77    uint enum_count )
  78 {
  79    if (e >= enum_count)
  80       ctx->dump_printf( ctx, "%u", e );
  81    else
  82       ctx->dump_printf( ctx, "%s", enums[e] );
  83 }
  84
  85 #define EOL()           ctx->dump_printf( ctx, "\n" )
  86 #define TXT(S)          ctx->dump_printf( ctx, "%s", S )
  87 #define CHR(C)          ctx->dump_printf( ctx, "%c", C )
  88 #define UIX(I)          ctx->dump_printf( ctx, "0x%x", I )
  89 #define UID(I)          ctx->dump_printf( ctx, "%u", I )
  90 #define INSTID(I)       ctx->dump_printf( ctx, "% 3u", I )
  91 #define SID(I)          ctx->dump_printf( ctx, "%d", I )
  92 #define FLT(F)          ctx->dump_printf( ctx, "%10.4f", F )
  93 #define DBL(D)          ctx->dump_printf( ctx, "%10.8f", D )
  94 #define HFLT(F)         ctx->dump_printf( ctx, "0x%08x", fui((F)) )
  95 #define ENM(E,ENUMS)    dump_enum( ctx, E, ENUMS, sizeof( ENUMS ) / sizeof( *ENUMS ) )
  96
  97 const char *
  98 tgsi_swizzle_names[4] =
  99 {
 100    "x",
 101    "y",
 102    "z",
 103    "w"
 104 };
 105
 106 static void
 107 _dump_register_src(
 108    struct dump_ctx *ctx,
 109    const struct tgsi_full_src_register *src )
 110 {
 111    TXT(tgsi_file_name(src->Register.File));
 112    if (src->Register.Dimension) {
 113       if (src->Dimension.Indirect) {
 114          CHR( '[' );
 115          TXT(tgsi_file_name(src->DimIndirect.File));
 116          CHR( '[' );
 117          SID( src->DimIndirect.Index );
 118          TXT( "]." );
 119          ENM( src->DimIndirect.Swizzle, tgsi_swizzle_names );
 120          if (src->Dimension.Index != 0) {
 121             if (src->Dimension.Index > 0)
 122                CHR( '+' );
 123             SID( src->Dimension.Index );
 124          }
 125          CHR( ']' );
 126          if (src->DimIndirect.ArrayID) {
 127             CHR( '(' );
 128             SID( src->DimIndirect.ArrayID );
 129             CHR( ')' );
 130          }
 131       } else {
 132          CHR('[');
 133          SID(src->Dimension.Index);
 134          CHR(']');
 135       }
 136    }
 137    if (src->Register.Indirect) {
 138       CHR( '[' );
 139       TXT(tgsi_file_name(src->Indirect.File));
 140       CHR( '[' );
 141       SID( src->Indirect.Index );
 142       TXT( "]." );
 143       ENM( src->Indirect.Swizzle, tgsi_swizzle_names );
 144       if (src->Register.Index != 0) {
 145          if (src->Register.Index > 0)
 146             CHR( '+' );
 147          SID( src->Register.Index );
 148       }
 149       CHR( ']' );
 150       if (src->Indirect.ArrayID) {
 151          CHR( '(' );
 152          SID( src->Indirect.ArrayID );
 153          CHR( ')' );
 154       }
 155    } else {
 156       CHR( '[' );
 157       SID( src->Register.Index );
 158       CHR( ']' );
 159    }
 160 }
 161
 162
 163 static void
 164 _dump_register_dst(
 165    struct dump_ctx *ctx,
 166    const struct tgsi_full_dst_register *dst )
 167 {
 168    TXT(tgsi_file_name(dst->Register.File));
 169    if (dst->Register.Dimension) {
 170       if (dst->Dimension.Indirect) {
 171          CHR( '[' );
 172          TXT(tgsi_file_name(dst->DimIndirect.File));
 173          CHR( '[' );
 174          SID( dst->DimIndirect.Index );
 175          TXT( "]." );
 176          ENM( dst->DimIndirect.Swizzle, tgsi_swizzle_names );
 177          if (dst->Dimension.Index != 0) {
 178             if (dst->Dimension.Index > 0)
 179                CHR( '+' );
 180             SID( dst->Dimension.Index );
 181          }
 182          CHR( ']' );
 183          if (dst->DimIndirect.ArrayID) {
 184             CHR( '(' );
 185             SID( dst->DimIndirect.ArrayID );
 186             CHR( ')' );
 187          }
 188       } else {
 189          CHR('[');
 190          SID(dst->Dimension.Index);
 191          CHR(']');
 192       }
 193    }
 194    if (dst->Register.Indirect) {
 195       CHR( '[' );
 196       TXT(tgsi_file_name(dst->Indirect.File));
 197       CHR( '[' );
 198       SID( dst->Indirect.Index );
 199       TXT( "]." );
 200       ENM( dst->Indirect.Swizzle, tgsi_swizzle_names );
 201       if (dst->Register.Index != 0) {
 202          if (dst->Register.Index > 0)
 203             CHR( '+' );
 204          SID( dst->Register.Index );
 205       }
 206       CHR( ']' );
 207       if (dst->Indirect.ArrayID) {
 208          CHR( '(' );
 209          SID( dst->Indirect.ArrayID );
 210          CHR( ')' );
 211       }
 212    } else {
 213       CHR( '[' );
 214       SID( dst->Register.Index );
 215       CHR( ']' );
 216    }
 217 }
 218 static void
 219 _dump_writemask(
 220    struct dump_ctx *ctx,
 221    uint writemask )
 222 {
 223    if (writemask != TGSI_WRITEMASK_XYZW) {
 224       CHR( '.' );
 225       if (writemask & TGSI_WRITEMASK_X)
 226          CHR( 'x' );
 227       if (writemask & TGSI_WRITEMASK_Y)
 228          CHR( 'y' );
 229       if (writemask & TGSI_WRITEMASK_Z)
 230          CHR( 'z' );
 231       if (writemask & TGSI_WRITEMASK_W)
 232          CHR( 'w' );
 233    }
 234 }
 235
 236 static void
 237 dump_imm_data(struct tgsi_iterate_context *iter,
 238               union tgsi_immediate_data *data,
 239               unsigned num_tokens,
 240               unsigned data_type)
 241 {
 242    struct dump_ctx *ctx = (struct dump_ctx *)iter;
 243    unsigned i ;
 244
 245    TXT( " {" );
 246
 247    assert( num_tokens <= 4 );
 248    for (i = 0; i < num_tokens; i++) {
 249       switch (data_type) {
 250       case TGSI_IMM_FLOAT64: {
 251          union di d;
 252          d.ui = data[i].Uint | (uint64_t)data[i+1].Uint << 32;
 253          DBL( d.d );
 254          i++;
 255          break;
 256       }
 257       case TGSI_IMM_FLOAT32:
 258          if (ctx->dump_float_as_hex)
 259             HFLT( data[i].Float );
 260          else
 261             FLT( data[i].Float );
 262          break;
 263       case TGSI_IMM_UINT32:
 264          UID(data[i].Uint);
 265          break;
 266       case TGSI_IMM_INT32:
 267          SID(data[i].Int);
 268          break;
 269       default:
 270          assert( 0 );
 271       }
 272
 273       if (i < num_tokens - 1)
 274          TXT( ", " );
 275    }
 276    TXT( "}" );
 277 }
 278
 279 static boolean
 280 iter_declaration(
 281    struct tgsi_iterate_context *iter,
 282    struct tgsi_full_declaration *decl )
 283 {
 284    struct dump_ctx *ctx = (struct dump_ctx *)iter;
 285    boolean patch = decl->Semantic.Name == TGSI_SEMANTIC_PATCH ||
 286       decl->Semantic.Name == TGSI_SEMANTIC_TESSINNER ||
 287       decl->Semantic.Name == TGSI_SEMANTIC_TESSOUTER ||
 288       decl->Semantic.Name == TGSI_SEMANTIC_PRIMID;
 289
 290    TXT( "DCL " );
 291
 292    TXT(tgsi_file_name(decl->Declaration.File));
 293
 294    /* all geometry shader inputs and non-patch tessellation shader inputs are
 295     * two dimensional
 296     */
 297    if (decl->Declaration.File == TGSI_FILE_INPUT &&
 298        (iter->processor.Processor == TGSI_PROCESSOR_GEOMETRY ||
 299         (!patch &&
 300          (iter->processor.Processor == TGSI_PROCESSOR_TESS_CTRL ||
 301           iter->processor.Processor == TGSI_PROCESSOR_TESS_EVAL)))) {
 302       TXT("[]");
 303    }
 304
 305    /* all non-patch tess ctrl shader outputs are two dimensional */
 306    if (decl->Declaration.File == TGSI_FILE_OUTPUT &&
 307        !patch &&
 308        iter->processor.Processor == TGSI_PROCESSOR_TESS_CTRL) {
 309       TXT("[]");
 310    }
 311
 312    if (decl->Declaration.Dimension) {
 313       CHR('[');
 314       SID(decl->Dim.Index2D);
 315       CHR(']');
 316    }
 317
 318    CHR('[');
 319    SID(decl->Range.First);
 320    if (decl->Range.First != decl->Range.Last) {
 321       TXT("..");
 322       SID(decl->Range.Last);
 323    }
 324    CHR(']');
 325
 326    _dump_writemask(
 327       ctx,
 328       decl->Declaration.UsageMask );
 329
 330    if (decl->Declaration.Array) {
 331       TXT( ", ARRAY(" );
 332       SID(decl->Array.ArrayID);
 333       CHR(')');
 334    }
 335
 336    if (decl->Declaration.Local)
 337       TXT( ", LOCAL" );
 338
 339    if (decl->Declaration.Semantic) {
 340       TXT( ", " );
 341       ENM( decl->Semantic.Name, tgsi_semantic_names );
 342       if (decl->Semantic.Index != 0 ||
 343           decl->Semantic.Name == TGSI_SEMANTIC_TEXCOORD ||
 344           decl->Semantic.Name == TGSI_SEMANTIC_GENERIC) {
 345          CHR( '[' );
 346          UID( decl->Semantic.Index );
 347          CHR( ']' );
 348       }
 349    }
 350
 351    if (decl->Declaration.File == TGSI_FILE_RESOURCE) {
 352       TXT(", ");
 353       ENM(decl->Resource.Resource, tgsi_texture_names);
 354       if (decl->Resource.Writable)
 355          TXT(", WR");
 356       if (decl->Resource.Raw)
 357          TXT(", RAW");
 358    }
 359
 360    if (decl->Declaration.File == TGSI_FILE_SAMPLER_VIEW) {
 361       TXT(", ");
 362       ENM(decl->SamplerView.Resource, tgsi_texture_names);
 363       TXT(", ");
 364       if ((decl->SamplerView.ReturnTypeX == decl->SamplerView.ReturnTypeY) &&
 365           (decl->SamplerView.ReturnTypeX == decl->SamplerView.ReturnTypeZ) &&
 366           (decl->SamplerView.ReturnTypeX == decl->SamplerView.ReturnTypeW)) {
 367          ENM(decl->SamplerView.ReturnTypeX, tgsi_return_type_names);
 368       } else {
 369          ENM(decl->SamplerView.ReturnTypeX, tgsi_return_type_names);
 370          TXT(", ");
 371          ENM(decl->SamplerView.ReturnTypeY, tgsi_return_type_names);
 372          TXT(", ");
 373          ENM(decl->SamplerView.ReturnTypeZ, tgsi_return_type_names);
 374          TXT(", ");
 375          ENM(decl->SamplerView.ReturnTypeW, tgsi_return_type_names);
 376       }
 377    }
 378
 379    if (decl->Declaration.Interpolate) {
 380       if (iter->processor.Processor == TGSI_PROCESSOR_FRAGMENT &&
 381           decl->Declaration.File == TGSI_FILE_INPUT)
 382       {
 383          TXT( ", " );
 384          ENM( decl->Interp.Interpolate, tgsi_interpolate_names );
 385       }
 386
 387       if (decl->Interp.Location != TGSI_INTERPOLATE_LOC_CENTER) {
 388          TXT( ", " );
 389          ENM( decl->Interp.Location, tgsi_interpolate_locations );
 390       }
 391
 392       if (decl->Interp.CylindricalWrap) {
 393          TXT(", CYLWRAP_");
 394          if (decl->Interp.CylindricalWrap & TGSI_CYLINDRICAL_WRAP_X) {
 395             CHR('X');
 396          }
 397          if (decl->Interp.CylindricalWrap & TGSI_CYLINDRICAL_WRAP_Y) {
 398             CHR('Y');
 399          }
 400          if (decl->Interp.CylindricalWrap & TGSI_CYLINDRICAL_WRAP_Z) {
 401             CHR('Z');
 402          }
 403          if (decl->Interp.CylindricalWrap & TGSI_CYLINDRICAL_WRAP_W) {
 404             CHR('W');
 405          }
 406       }
 407    }
 408
 409    if (decl->Declaration.Invariant) {
 410       TXT( ", INVARIANT" );
 411    }
 412
 413    EOL();
 414
 415    return TRUE;
 416 }
 417
 418 void
 419 tgsi_dump_declaration(
 420    const struct tgsi_full_declaration *decl )
 421 {
 422    struct dump_ctx ctx;
 423
 424    ctx.dump_printf = dump_ctx_printf;
 425
 426    iter_declaration( &ctx.iter, (struct tgsi_full_declaration *)decl );
 427 }
 428
 429 static boolean
 430 iter_property(
 431    struct tgsi_iterate_context *iter,
 432    struct tgsi_full_property *prop )
 433 {
 434    unsigned i;
 435    struct dump_ctx *ctx = (struct dump_ctx *)iter;
 436
 437    TXT( "PROPERTY " );
 438    ENM(prop->Property.PropertyName, tgsi_property_names);
 439
 440    if (prop->Property.NrTokens > 1)
 441       TXT(" ");
 442
 443    for (i = 0; i < prop->Property.NrTokens - 1; ++i) {
 444       switch (prop->Property.PropertyName) {
 445       case TGSI_PROPERTY_GS_INPUT_PRIM:
 446       case TGSI_PROPERTY_GS_OUTPUT_PRIM:
 447          ENM(prop->u[i].Data, tgsi_primitive_names);
 448          break;
 449       case TGSI_PROPERTY_FS_COORD_ORIGIN:
 450          ENM(prop->u[i].Data, tgsi_fs_coord_origin_names);
 451          break;
 452       case TGSI_PROPERTY_FS_COORD_PIXEL_CENTER:
 453          ENM(prop->u[i].Data, tgsi_fs_coord_pixel_center_names);
 454          break;
 455       default:
 456          SID( prop->u[i].Data );
 457          break;
 458       }
 459       if (i < prop->Property.NrTokens - 2)
 460          TXT( ", " );
 461    }
 462    EOL();
 463
 464    return TRUE;
 465 }
 466
 467 void tgsi_dump_property(
 468    const struct tgsi_full_property *prop )
 469 {
 470    struct dump_ctx ctx;
 471
 472    ctx.dump_printf = dump_ctx_printf;
 473
 474    iter_property( &ctx.iter, (struct tgsi_full_property *)prop );
 475 }
 476
 477 static boolean
 478 iter_immediate(
 479    struct tgsi_iterate_context *iter,
 480    struct tgsi_full_immediate *imm )
 481 {
 482    struct dump_ctx *ctx = (struct dump_ctx *) iter;
 483
 484    TXT( "IMM[" );
 485    SID( ctx->immno++ );
 486    TXT( "] " );
 487    ENM( imm->Immediate.DataType, tgsi_immediate_type_names );
 488
 489    dump_imm_data(iter, imm->u, imm->Immediate.NrTokens - 1,
 490                  imm->Immediate.DataType);
 491
 492    EOL();
 493
 494    return TRUE;
 495 }
 496
 497 void
 498 tgsi_dump_immediate(
 499    const struct tgsi_full_immediate *imm )
 500 {
 501    struct dump_ctx ctx;
 502
 503    ctx.dump_printf = dump_ctx_printf;
 504
 505    iter_immediate( &ctx.iter, (struct tgsi_full_immediate *)imm );
 506 }
 507
 508 static boolean
 509 iter_instruction(
 510    struct tgsi_iterate_context *iter,
 511    struct tgsi_full_instruction *inst )
 512 {
 513    struct dump_ctx *ctx = (struct dump_ctx *) iter;
 514    uint instno = ctx->instno++;
 515    const struct tgsi_opcode_info *info = tgsi_get_opcode_info( inst->Instruction.Opcode );
 516    uint i;
 517    boolean first_reg = TRUE;
 518
 519    INSTID( instno );
 520    TXT( ": " );
 521
 522    ctx->indent -= info->pre_dedent;
 523    for(i = 0; (int)i < ctx->indent; ++i)
 524       TXT( "  " );
 525    ctx->indent += info->post_indent;
 526
 527    if (inst->Instruction.Predicate) {
 528       CHR( '(' );
 529
 530       if (inst->Predicate.Negate)
 531          CHR( '!' );
 532
 533       TXT( "PRED[" );
 534       SID( inst->Predicate.Index );
 535       CHR( ']' );
 536
 537       if (inst->Predicate.SwizzleX != TGSI_SWIZZLE_X ||
 538           inst->Predicate.SwizzleY != TGSI_SWIZZLE_Y ||
 539           inst->Predicate.SwizzleZ != TGSI_SWIZZLE_Z ||
 540           inst->Predicate.SwizzleW != TGSI_SWIZZLE_W) {
 541          CHR( '.' );
 542          ENM( inst->Predicate.SwizzleX, tgsi_swizzle_names );
 543          ENM( inst->Predicate.SwizzleY, tgsi_swizzle_names );
 544          ENM( inst->Predicate.SwizzleZ, tgsi_swizzle_names );
 545          ENM( inst->Predicate.SwizzleW, tgsi_swizzle_names );
 546       }
 547
 548       TXT( ") " );
 549    }
 550
 551    TXT( info->mnemonic );
 552
 553    if (inst->Instruction.Saturate) {
 554       TXT( "_SAT" );
 555    }
 556
 557    for (i = 0; i < inst->Instruction.NumDstRegs; i++) {
 558       const struct tgsi_full_dst_register *dst = &inst->Dst[i];
 559
 560       if (!first_reg)
 561          CHR( ',' );
 562       CHR( ' ' );
 563
 564       _dump_register_dst( ctx, dst );
 565       _dump_writemask( ctx, dst->Register.WriteMask );
 566
 567       first_reg = FALSE;
 568    }
 569
 570    for (i = 0; i < inst->Instruction.NumSrcRegs; i++) {
 571       const struct tgsi_full_src_register *src = &inst->Src[i];
 572
 573       if (!first_reg)
 574          CHR( ',' );
 575       CHR( ' ' );
 576
 577       if (src->Register.Negate)
 578          CHR( '-' );
 579       if (src->Register.Absolute)
 580          CHR( '|' );
 581
 582       _dump_register_src(ctx, src);
 583
 584       if (src->Register.SwizzleX != TGSI_SWIZZLE_X ||
 585           src->Register.SwizzleY != TGSI_SWIZZLE_Y ||
 586           src->Register.SwizzleZ != TGSI_SWIZZLE_Z ||
 587           src->Register.SwizzleW != TGSI_SWIZZLE_W) {
 588          CHR( '.' );
 589          ENM( src->Register.SwizzleX, tgsi_swizzle_names );
 590          ENM( src->Register.SwizzleY, tgsi_swizzle_names );
 591          ENM( src->Register.SwizzleZ, tgsi_swizzle_names );
 592          ENM( src->Register.SwizzleW, tgsi_swizzle_names );
 593       }
 594
 595       if (src->Register.Absolute)
 596          CHR( '|' );
 597
 598       first_reg = FALSE;
 599    }
 600
 601    if (inst->Instruction.Texture) {
 602       if (!(inst->Instruction.Opcode >= TGSI_OPCODE_SAMPLE &&
 603             inst->Instruction.Opcode <= TGSI_OPCODE_GATHER4)) {
 604          TXT( ", " );
 605          ENM( inst->Texture.Texture, tgsi_texture_names );
 606       }
 607       for (i = 0; i < inst->Texture.NumOffsets; i++) {
 608          TXT( ", " );
 609          TXT(tgsi_file_name(inst->TexOffsets[i].File));
 610          CHR( '[' );
 611          SID( inst->TexOffsets[i].Index );
 612          CHR( ']' );
 613          CHR( '.' );
 614          ENM( inst->TexOffsets[i].SwizzleX, tgsi_swizzle_names);
 615          ENM( inst->TexOffsets[i].SwizzleY, tgsi_swizzle_names);
 616          ENM( inst->TexOffsets[i].SwizzleZ, tgsi_swizzle_names);
 617       }
 618    }
 619
 620    switch (inst->Instruction.Opcode) {
 621    case TGSI_OPCODE_IF:
 622    case TGSI_OPCODE_UIF:
 623    case TGSI_OPCODE_ELSE:
 624    case TGSI_OPCODE_BGNLOOP:
 625    case TGSI_OPCODE_ENDLOOP:
 626    case TGSI_OPCODE_CAL:
 627    case TGSI_OPCODE_BGNSUB:
 628       TXT( " :" );
 629       UID( inst->Label.Label );
 630       break;
 631    }
 632
 633    /* update indentation */
 634    if (inst->Instruction.Opcode == TGSI_OPCODE_IF ||
 635        inst->Instruction.Opcode == TGSI_OPCODE_UIF ||
 636        inst->Instruction.Opcode == TGSI_OPCODE_ELSE ||
 637        inst->Instruction.Opcode == TGSI_OPCODE_BGNLOOP) {
 638       ctx->indentation += indent_spaces;
 639    }
 640
 641    EOL();
 642
 643    return TRUE;
 644 }
 645
 646 void
 647 tgsi_dump_instruction(
 648    const struct tgsi_full_instruction *inst,
 649    uint instno )
 650 {
 651    struct dump_ctx ctx;
 652
 653    ctx.instno = instno;
 654    ctx.immno = instno;
 655    ctx.indent = 0;
 656    ctx.dump_printf = dump_ctx_printf;
 657    ctx.indentation = 0;
 658    ctx.file = NULL;
 659
 660    iter_instruction( &ctx.iter, (struct tgsi_full_instruction *)inst );
 661 }
 662
 663 static boolean
 664 prolog(
 665    struct tgsi_iterate_context *iter )
 666 {
 667    struct dump_ctx *ctx = (struct dump_ctx *) iter;
 668    ENM( iter->processor.Processor, tgsi_processor_type_names );
 669    EOL();
 670    return TRUE;
 671 }
 672
 673 void
 674 tgsi_dump_to_file(const struct tgsi_token *tokens, uint flags, FILE *file)
 675 {
 676    struct dump_ctx ctx;
 677
 678    ctx.iter.prolog = prolog;
 679    ctx.iter.iterate_instruction = iter_instruction;
 680    ctx.iter.iterate_declaration = iter_declaration;
 681    ctx.iter.iterate_immediate = iter_immediate;
 682    ctx.iter.iterate_property = iter_property;
 683    ctx.iter.epilog = NULL;
 684
 685    ctx.instno = 0;
 686    ctx.immno = 0;
 687    ctx.indent = 0;
 688    ctx.dump_printf = dump_ctx_printf;
 689    ctx.indentation = 0;
 690    ctx.file = file;
 691
 692    if (flags & TGSI_DUMP_FLOAT_AS_HEX)
 693       ctx.dump_float_as_hex = TRUE;
 694    else
 695       ctx.dump_float_as_hex = FALSE;
 696
 697    tgsi_iterate_shader( tokens, &ctx.iter );
 698 }
 699
 700 void
 701 tgsi_dump(const struct tgsi_token *tokens, uint flags)
 702 {
 703    tgsi_dump_to_file(tokens, flags, NULL);
 704 }
 705
 706 struct str_dump_ctx
 707 {
 708    struct dump_ctx base;
 709    char *str;
 710    char *ptr;
 711    int left;
 712    bool nospace;
 713 };
 714
 715 static void
 716 str_dump_ctx_printf(struct dump_ctx *ctx, const char *format, ...)
 717 {
 718    struct str_dump_ctx *sctx = (struct str_dump_ctx *)ctx;
 719
 720    if(sctx->left > 1) {
 721       int written;
 722       va_list ap;
 723       va_start(ap, format);
 724       written = util_vsnprintf(sctx->ptr, sctx->left, format, ap);
 725       va_end(ap);
 726
 727       /* Some complicated logic needed to handle the return value of
 728        * vsnprintf:
 729        */
 730       if (written > 0) {
 731          written = MIN2(sctx->left, written);
 732          sctx->ptr += written;
 733          sctx->left -= written;
 734       }
 735    } else
 736       sctx->nospace = true;
 737 }
 738
 739 bool
 740 tgsi_dump_str(
 741    const struct tgsi_token *tokens,
 742    uint flags,
 743    char *str,
 744    size_t size)
 745 {
 746    struct str_dump_ctx ctx;
 747
 748    ctx.base.iter.prolog = prolog;
 749    ctx.base.iter.iterate_instruction = iter_instruction;
 750    ctx.base.iter.iterate_declaration = iter_declaration;
 751    ctx.base.iter.iterate_immediate = iter_immediate;
 752    ctx.base.iter.iterate_property = iter_property;
 753    ctx.base.iter.epilog = NULL;
 754
 755    ctx.base.instno = 0;
 756    ctx.base.immno = 0;
 757    ctx.base.indent = 0;
 758    ctx.base.dump_printf = &str_dump_ctx_printf;
 759    ctx.base.indentation = 0;
 760    ctx.base.file = NULL;
 761
 762    ctx.str = str;
 763    ctx.str[0] = 0;
 764    ctx.ptr = str;
 765    ctx.left = (int)size;
 766    ctx.nospace = false;
 767
 768    if (flags & TGSI_DUMP_FLOAT_AS_HEX)
 769       ctx.base.dump_float_as_hex = TRUE;
 770    else
 771       ctx.base.dump_float_as_hex = FALSE;
 772
 773    tgsi_iterate_shader( tokens, &ctx.base.iter );
 774
 775    return !ctx.nospace;
 776 }
 777
 778 void
 779 tgsi_dump_instruction_str(
 780    const struct tgsi_full_instruction *inst,
 781    uint instno,
 782    char *str,
 783    size_t size)
 784 {
 785    struct str_dump_ctx ctx;
 786
 787    ctx.base.instno = instno;
 788    ctx.base.immno = instno;
 789    ctx.base.indent = 0;
 790    ctx.base.dump_printf = &str_dump_ctx_printf;
 791    ctx.base.indentation = 0;
 792    ctx.base.file = NULL;
 793
 794    ctx.str = str;
 795    ctx.str[0] = 0;
 796    ctx.ptr = str;
 797    ctx.left = (int)size;
 798    ctx.nospace = false;
 799
 800    iter_instruction( &ctx.base.iter, (struct tgsi_full_instruction *)inst );
 801 }