src/gallium/auxiliary/tgsi/tgsi_build.c

   1 /**************************************************************************
   2  *
   3  * Copyright 2007 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 "pipe/p_shader_tokens.h"
  30 #include "tgsi_build.h"
  31 #include "tgsi_parse.h"
  32
  33 /*
  34  * version
  35  */
  36
  37 struct tgsi_version
  38 tgsi_build_version( void )
  39 {
  40    struct tgsi_version  version;
  41
  42    version.MajorVersion = 1;
  43    version.MinorVersion = 1;
  44    version.Padding = 0;
  45
  46    return version;
  47 }
  48
  49 /*
  50  * header
  51  */
  52
  53 struct tgsi_header
  54 tgsi_build_header( void )
  55 {
  56    struct tgsi_header header;
  57
  58    header.HeaderSize = 1;
  59    header.BodySize = 0;
  60
  61    return header;
  62 }
  63
  64 static void
  65 header_headersize_grow( struct tgsi_header *header )
  66 {
  67    assert( header->HeaderSize < 0xFF );
  68    assert( header->BodySize == 0 );
  69
  70    header->HeaderSize++;
  71 }
  72
  73 static void
  74 header_bodysize_grow( struct tgsi_header *header )
  75 {
  76    assert( header->BodySize < 0xFFFFFF );
  77
  78    header->BodySize++;
  79 }
  80
  81 struct tgsi_processor
  82 tgsi_default_processor( void )
  83 {
  84    struct tgsi_processor processor;
  85
  86    processor.Processor = TGSI_PROCESSOR_FRAGMENT;
  87    processor.Padding = 0;
  88
  89    return processor;
  90 }
  91
  92 struct tgsi_processor
  93 tgsi_build_processor(
  94    unsigned type,
  95    struct tgsi_header *header )
  96 {
  97    struct tgsi_processor processor;
  98
  99    processor = tgsi_default_processor();
 100    processor.Processor = type;
 101
 102    header_headersize_grow( header );
 103
 104    return processor;
 105 }
 106
 107 /*
 108  * declaration
 109  */
 110
 111 struct tgsi_declaration
 112 tgsi_default_declaration( void )
 113 {
 114    struct tgsi_declaration declaration;
 115
 116    declaration.Type = TGSI_TOKEN_TYPE_DECLARATION;
 117    declaration.NrTokens = 1;
 118    declaration.File = TGSI_FILE_NULL;
 119    declaration.UsageMask = TGSI_WRITEMASK_XYZW;
 120    declaration.Interpolate = TGSI_INTERPOLATE_CONSTANT;
 121    declaration.Semantic = 0;
 122    declaration.Centroid = 0;
 123    declaration.Invariant = 0;
 124    declaration.Padding = 0;
 125    declaration.Extended = 0;
 126
 127    return declaration;
 128 }
 129
 130 struct tgsi_declaration
 131 tgsi_build_declaration(
 132    unsigned file,
 133    unsigned usage_mask,
 134    unsigned interpolate,
 135    unsigned semantic,
 136    unsigned centroid,
 137    unsigned invariant,
 138    struct tgsi_header *header )
 139 {
 140    struct tgsi_declaration declaration;
 141
 142    assert( file < TGSI_FILE_COUNT );
 143    assert( interpolate < TGSI_INTERPOLATE_COUNT );
 144
 145    declaration = tgsi_default_declaration();
 146    declaration.File = file;
 147    declaration.UsageMask = usage_mask;
 148    declaration.Interpolate = interpolate;
 149    declaration.Semantic = semantic;
 150    declaration.Centroid = centroid;
 151    declaration.Invariant = invariant;
 152
 153    header_bodysize_grow( header );
 154
 155    return declaration;
 156 }
 157
 158 static void
 159 declaration_grow(
 160    struct tgsi_declaration *declaration,
 161    struct tgsi_header *header )
 162 {
 163    assert( declaration->NrTokens < 0xFF );
 164
 165    declaration->NrTokens++;
 166
 167    header_bodysize_grow( header );
 168 }
 169
 170 struct tgsi_full_declaration
 171 tgsi_default_full_declaration( void )
 172 {
 173    struct tgsi_full_declaration  full_declaration;
 174
 175    full_declaration.Declaration  = tgsi_default_declaration();
 176    full_declaration.DeclarationRange = tgsi_default_declaration_range();
 177    full_declaration.Semantic = tgsi_default_declaration_semantic();
 178
 179    return full_declaration;
 180 }
 181
 182 unsigned
 183 tgsi_build_full_declaration(
 184    const struct tgsi_full_declaration *full_decl,
 185    struct tgsi_token *tokens,
 186    struct tgsi_header *header,
 187    unsigned maxsize )
 188 {
 189    unsigned size = 0;
 190    struct tgsi_declaration *declaration;
 191    struct tgsi_declaration_range *dr;
 192
 193    if( maxsize <= size )
 194      return 0;
 195    declaration = (struct tgsi_declaration *) &tokens[size];
 196    size++;
 197
 198    *declaration = tgsi_build_declaration(
 199       full_decl->Declaration.File,
 200       full_decl->Declaration.UsageMask,
 201       full_decl->Declaration.Interpolate,
 202       full_decl->Declaration.Semantic,
 203       full_decl->Declaration.Centroid,
 204       full_decl->Declaration.Invariant,
 205       header );
 206
 207    if (maxsize <= size)
 208       return 0;
 209    dr = (struct tgsi_declaration_range *) &tokens[size];
 210    size++;
 211
 212    *dr = tgsi_build_declaration_range(
 213       full_decl->DeclarationRange.First,
 214       full_decl->DeclarationRange.Last,
 215       declaration,
 216       header );
 217
 218    if( full_decl->Declaration.Semantic ) {
 219       struct tgsi_declaration_semantic *ds;
 220
 221       if( maxsize <= size )
 222          return  0;
 223       ds = (struct tgsi_declaration_semantic *) &tokens[size];
 224       size++;
 225
 226       *ds = tgsi_build_declaration_semantic(
 227          full_decl->Semantic.SemanticName,
 228          full_decl->Semantic.SemanticIndex,
 229          declaration,
 230          header );
 231    }
 232
 233    return size;
 234 }
 235
 236 struct tgsi_declaration_range
 237 tgsi_default_declaration_range( void )
 238 {
 239    struct tgsi_declaration_range dr;
 240
 241    dr.First = 0;
 242    dr.Last = 0;
 243
 244    return dr;
 245 }
 246
 247 struct tgsi_declaration_range
 248 tgsi_build_declaration_range(
 249    unsigned first,
 250    unsigned last,
 251    struct tgsi_declaration *declaration,
 252    struct tgsi_header *header )
 253 {
 254    struct tgsi_declaration_range declaration_range;
 255
 256    assert( last >= first );
 257    assert( last <= 0xFFFF );
 258
 259    declaration_range = tgsi_default_declaration_range();
 260    declaration_range.First = first;
 261    declaration_range.Last = last;
 262
 263    declaration_grow( declaration, header );
 264
 265    return declaration_range;
 266 }
 267
 268 struct tgsi_declaration_semantic
 269 tgsi_default_declaration_semantic( void )
 270 {
 271    struct tgsi_declaration_semantic ds;
 272
 273    ds.SemanticName = TGSI_SEMANTIC_POSITION;
 274    ds.SemanticIndex = 0;
 275    ds.Padding = 0;
 276
 277    return ds;
 278 }
 279
 280 struct tgsi_declaration_semantic
 281 tgsi_build_declaration_semantic(
 282    unsigned semantic_name,
 283    unsigned semantic_index,
 284    struct tgsi_declaration *declaration,
 285    struct tgsi_header *header )
 286 {
 287    struct tgsi_declaration_semantic ds;
 288
 289    assert( semantic_name <= TGSI_SEMANTIC_COUNT );
 290    assert( semantic_index <= 0xFFFF );
 291
 292    ds = tgsi_default_declaration_semantic();
 293    ds.SemanticName = semantic_name;
 294    ds.SemanticIndex = semantic_index;
 295
 296    declaration_grow( declaration, header );
 297
 298    return ds;
 299 }
 300
 301 /*
 302  * immediate
 303  */
 304
 305 struct tgsi_immediate
 306 tgsi_default_immediate( void )
 307 {
 308    struct tgsi_immediate immediate;
 309
 310    immediate.Type = TGSI_TOKEN_TYPE_IMMEDIATE;
 311    immediate.NrTokens = 1;
 312    immediate.DataType = TGSI_IMM_FLOAT32;
 313    immediate.Padding = 0;
 314    immediate.Extended = 0;
 315
 316    return immediate;
 317 }
 318
 319 struct tgsi_immediate
 320 tgsi_build_immediate(
 321    struct tgsi_header *header )
 322 {
 323    struct tgsi_immediate immediate;
 324
 325    immediate = tgsi_default_immediate();
 326
 327    header_bodysize_grow( header );
 328
 329    return immediate;
 330 }
 331
 332 struct tgsi_full_immediate
 333 tgsi_default_full_immediate( void )
 334 {
 335    struct tgsi_full_immediate fullimm;
 336
 337    fullimm.Immediate = tgsi_default_immediate();
 338    fullimm.u[0].Float = 0.0f;
 339    fullimm.u[1].Float = 0.0f;
 340    fullimm.u[2].Float = 0.0f;
 341    fullimm.u[3].Float = 0.0f;
 342
 343    return fullimm;
 344 }
 345
 346 static void
 347 immediate_grow(
 348    struct tgsi_immediate *immediate,
 349    struct tgsi_header *header )
 350 {
 351    assert( immediate->NrTokens < 0xFF );
 352
 353    immediate->NrTokens++;
 354
 355    header_bodysize_grow( header );
 356 }
 357
 358 union tgsi_immediate_data
 359 tgsi_build_immediate_float32(
 360    float value,
 361    struct tgsi_immediate *immediate,
 362    struct tgsi_header *header )
 363 {
 364    union tgsi_immediate_data immediate_data;
 365
 366    immediate_data.Float = value;
 367
 368    immediate_grow( immediate, header );
 369
 370    return immediate_data;
 371 }
 372
 373 unsigned
 374 tgsi_build_full_immediate(
 375    const struct tgsi_full_immediate *full_imm,
 376    struct tgsi_token *tokens,
 377    struct tgsi_header *header,
 378    unsigned maxsize )
 379 {
 380    unsigned size = 0, i;
 381    struct tgsi_immediate *immediate;
 382
 383    if( maxsize <= size )
 384       return 0;
 385    immediate = (struct tgsi_immediate *) &tokens[size];
 386    size++;
 387
 388    *immediate = tgsi_build_immediate( header );
 389
 390    assert( full_imm->Immediate.NrTokens <= 4 + 1 );
 391
 392    for( i = 0; i < full_imm->Immediate.NrTokens - 1; i++ ) {
 393       union tgsi_immediate_data *data;
 394
 395       if( maxsize <= size )
 396          return  0;
 397       data = (union tgsi_immediate_data *) &tokens[size];
 398       size++;
 399
 400       *data = tgsi_build_immediate_float32(
 401          full_imm->u[i].Float,
 402          immediate,
 403          header );
 404    }
 405
 406    return size;
 407 }
 408
 409 /*
 410  * instruction
 411  */
 412
 413 struct tgsi_instruction
 414 tgsi_default_instruction( void )
 415 {
 416    struct tgsi_instruction instruction;
 417
 418    instruction.Type = TGSI_TOKEN_TYPE_INSTRUCTION;
 419    instruction.NrTokens = 1;
 420    instruction.Opcode = TGSI_OPCODE_MOV;
 421    instruction.Saturate = TGSI_SAT_NONE;
 422    instruction.NumDstRegs = 1;
 423    instruction.NumSrcRegs = 1;
 424    instruction.Padding  = 0;
 425    instruction.Extended = 0;
 426
 427    return instruction;
 428 }
 429
 430 struct tgsi_instruction
 431 tgsi_build_instruction(
 432    unsigned opcode,
 433    unsigned saturate,
 434    unsigned num_dst_regs,
 435    unsigned num_src_regs,
 436    struct tgsi_header *header )
 437 {
 438    struct tgsi_instruction instruction;
 439
 440    assert (opcode <= TGSI_OPCODE_LAST);
 441    assert (saturate <= TGSI_SAT_MINUS_PLUS_ONE);
 442    assert (num_dst_regs <= 3);
 443    assert (num_src_regs <= 15);
 444
 445    instruction = tgsi_default_instruction();
 446    instruction.Opcode = opcode;
 447    instruction.Saturate = saturate;
 448    instruction.NumDstRegs = num_dst_regs;
 449    instruction.NumSrcRegs = num_src_regs;
 450
 451    header_bodysize_grow( header );
 452
 453    return instruction;
 454 }
 455
 456 static void
 457 instruction_grow(
 458    struct tgsi_instruction *instruction,
 459    struct tgsi_header *header )
 460 {
 461    assert (instruction->NrTokens <   0xFF);
 462
 463    instruction->NrTokens++;
 464
 465    header_bodysize_grow( header );
 466 }
 467
 468 struct tgsi_full_instruction
 469 tgsi_default_full_instruction( void )
 470 {
 471    struct tgsi_full_instruction full_instruction;
 472    unsigned i;
 473
 474    full_instruction.Instruction = tgsi_default_instruction();
 475    full_instruction.InstructionExtLabel = tgsi_default_instruction_ext_label();
 476    full_instruction.InstructionExtTexture = tgsi_default_instruction_ext_texture();
 477    full_instruction.InstructionExtPredicate = tgsi_default_instruction_ext_predicate();
 478    for( i = 0;  i < TGSI_FULL_MAX_DST_REGISTERS; i++ ) {
 479       full_instruction.FullDstRegisters[i] = tgsi_default_full_dst_register();
 480    }
 481    for( i = 0;  i < TGSI_FULL_MAX_SRC_REGISTERS; i++ ) {
 482       full_instruction.FullSrcRegisters[i] = tgsi_default_full_src_register();
 483    }
 484
 485    full_instruction.Flags = 0x0;
 486
 487    return full_instruction;
 488 }
 489
 490 unsigned
 491 tgsi_build_full_instruction(
 492    const struct tgsi_full_instruction *full_inst,
 493    struct  tgsi_token *tokens,
 494    struct  tgsi_header *header,
 495    unsigned  maxsize )
 496 {
 497    unsigned size = 0;
 498    unsigned i;
 499    struct tgsi_instruction *instruction;
 500    struct tgsi_token *prev_token;
 501
 502    if( maxsize <= size )
 503       return 0;
 504    instruction = (struct tgsi_instruction *) &tokens[size];
 505    size++;
 506
 507    *instruction = tgsi_build_instruction(
 508       full_inst->Instruction.Opcode,
 509       full_inst->Instruction.Saturate,
 510       full_inst->Instruction.NumDstRegs,
 511       full_inst->Instruction.NumSrcRegs,
 512       header );
 513    prev_token = (struct tgsi_token  *) instruction;
 514
 515    if( tgsi_compare_instruction_ext_label(
 516          full_inst->InstructionExtLabel,
 517          tgsi_default_instruction_ext_label() ) ) {
 518       struct tgsi_instruction_ext_label *instruction_ext_label;
 519
 520       if( maxsize <= size )
 521          return 0;
 522       instruction_ext_label =
 523          (struct  tgsi_instruction_ext_label *) &tokens[size];
 524       size++;
 525
 526       *instruction_ext_label = tgsi_build_instruction_ext_label(
 527          full_inst->InstructionExtLabel.Label,
 528          prev_token,
 529          instruction,
 530          header );
 531       prev_token = (struct tgsi_token  *) instruction_ext_label;
 532    }
 533
 534    if( tgsi_compare_instruction_ext_texture(
 535          full_inst->InstructionExtTexture,
 536          tgsi_default_instruction_ext_texture() ) ) {
 537       struct tgsi_instruction_ext_texture *instruction_ext_texture;
 538
 539       if( maxsize <= size )
 540          return 0;
 541       instruction_ext_texture =
 542          (struct  tgsi_instruction_ext_texture *) &tokens[size];
 543       size++;
 544
 545       *instruction_ext_texture = tgsi_build_instruction_ext_texture(
 546          full_inst->InstructionExtTexture.Texture,
 547          prev_token,
 548          instruction,
 549          header   );
 550       prev_token = (struct tgsi_token  *) instruction_ext_texture;
 551    }
 552
 553    if (tgsi_compare_instruction_ext_predicate(full_inst->InstructionExtPredicate,
 554                                               tgsi_default_instruction_ext_predicate())) {
 555       struct tgsi_instruction_ext_predicate *instruction_ext_predicate;
 556
 557       if (maxsize <= size) {
 558          return 0;
 559       }
 560       instruction_ext_predicate = (struct tgsi_instruction_ext_predicate *)&tokens[size];
 561       size++;
 562
 563       *instruction_ext_predicate =
 564          tgsi_build_instruction_ext_predicate(full_inst->InstructionExtPredicate.SrcIndex,
 565                                               full_inst->InstructionExtPredicate.Negate,
 566                                               full_inst->InstructionExtPredicate.SwizzleX,
 567                                               full_inst->InstructionExtPredicate.SwizzleY,
 568                                               full_inst->InstructionExtPredicate.SwizzleZ,
 569                                               full_inst->InstructionExtPredicate.SwizzleW,
 570                                               prev_token,
 571                                               instruction,
 572                                               header);
 573       prev_token = (struct tgsi_token *)instruction_ext_predicate;
 574    }
 575
 576    for( i = 0;  i <   full_inst->Instruction.NumDstRegs; i++ ) {
 577       const struct tgsi_full_dst_register *reg = &full_inst->FullDstRegisters[i];
 578       struct tgsi_dst_register *dst_register;
 579       struct tgsi_token *prev_token;
 580
 581       if( maxsize <= size )
 582          return 0;
 583       dst_register = (struct tgsi_dst_register *) &tokens[size];
 584       size++;
 585
 586       *dst_register = tgsi_build_dst_register(
 587          reg->DstRegister.File,
 588          reg->DstRegister.WriteMask,
 589          reg->DstRegister.Indirect,
 590          reg->DstRegister.Index,
 591          instruction,
 592          header );
 593       prev_token = (struct tgsi_token  *) dst_register;
 594
 595       if( tgsi_compare_dst_register_ext_modulate(
 596             reg->DstRegisterExtModulate,
 597             tgsi_default_dst_register_ext_modulate() ) ) {
 598          struct tgsi_dst_register_ext_modulate *dst_register_ext_modulate;
 599
 600          if( maxsize <= size )
 601             return 0;
 602          dst_register_ext_modulate =
 603             (struct  tgsi_dst_register_ext_modulate *) &tokens[size];
 604          size++;
 605
 606          *dst_register_ext_modulate = tgsi_build_dst_register_ext_modulate(
 607             reg->DstRegisterExtModulate.Modulate,
 608             prev_token,
 609             instruction,
 610             header );
 611          prev_token = (struct tgsi_token  *) dst_register_ext_modulate;
 612       }
 613
 614       if( reg->DstRegister.Indirect ) {
 615          struct tgsi_src_register *ind;
 616
 617          if( maxsize <= size )
 618             return 0;
 619          ind = (struct tgsi_src_register *) &tokens[size];
 620          size++;
 621
 622          *ind = tgsi_build_src_register(
 623             reg->DstRegisterInd.File,
 624             reg->DstRegisterInd.SwizzleX,
 625             reg->DstRegisterInd.SwizzleY,
 626             reg->DstRegisterInd.SwizzleZ,
 627             reg->DstRegisterInd.SwizzleW,
 628             reg->DstRegisterInd.Negate,
 629             reg->DstRegisterInd.Indirect,
 630             reg->DstRegisterInd.Dimension,
 631             reg->DstRegisterInd.Index,
 632             instruction,
 633             header );
 634       }
 635    }
 636
 637    for( i = 0;  i < full_inst->Instruction.NumSrcRegs; i++ ) {
 638       const struct tgsi_full_src_register *reg = &full_inst->FullSrcRegisters[i];
 639       struct tgsi_src_register *src_register;
 640       struct tgsi_token *prev_token;
 641
 642       if( maxsize <= size )
 643          return 0;
 644       src_register = (struct tgsi_src_register *)  &tokens[size];
 645       size++;
 646
 647       *src_register = tgsi_build_src_register(
 648          reg->SrcRegister.File,
 649          reg->SrcRegister.SwizzleX,
 650          reg->SrcRegister.SwizzleY,
 651          reg->SrcRegister.SwizzleZ,
 652          reg->SrcRegister.SwizzleW,
 653          reg->SrcRegister.Negate,
 654          reg->SrcRegister.Indirect,
 655          reg->SrcRegister.Dimension,
 656          reg->SrcRegister.Index,
 657          instruction,
 658          header );
 659       prev_token = (struct tgsi_token  *) src_register;
 660
 661       if( tgsi_compare_src_register_ext_mod(
 662             reg->SrcRegisterExtMod,
 663             tgsi_default_src_register_ext_mod() ) ) {
 664          struct tgsi_src_register_ext_mod *src_register_ext_mod;
 665
 666          if( maxsize <= size )
 667             return 0;
 668          src_register_ext_mod =
 669             (struct  tgsi_src_register_ext_mod *) &tokens[size];
 670          size++;
 671
 672          *src_register_ext_mod = tgsi_build_src_register_ext_mod(
 673             reg->SrcRegisterExtMod.Complement,
 674             reg->SrcRegisterExtMod.Bias,
 675             reg->SrcRegisterExtMod.Scale2X,
 676             reg->SrcRegisterExtMod.Absolute,
 677             reg->SrcRegisterExtMod.Negate,
 678             prev_token,
 679             instruction,
 680             header );
 681          prev_token = (struct tgsi_token  *) src_register_ext_mod;
 682       }
 683
 684       if( reg->SrcRegister.Indirect ) {
 685          struct  tgsi_src_register *ind;
 686
 687          if( maxsize <= size )
 688             return 0;
 689          ind = (struct tgsi_src_register *) &tokens[size];
 690          size++;
 691
 692          *ind = tgsi_build_src_register(
 693             reg->SrcRegisterInd.File,
 694             reg->SrcRegisterInd.SwizzleX,
 695             reg->SrcRegisterInd.SwizzleY,
 696             reg->SrcRegisterInd.SwizzleZ,
 697             reg->SrcRegisterInd.SwizzleW,
 698             reg->SrcRegisterInd.Negate,
 699             reg->SrcRegisterInd.Indirect,
 700             reg->SrcRegisterInd.Dimension,
 701             reg->SrcRegisterInd.Index,
 702             instruction,
 703             header );
 704       }
 705
 706       if( reg->SrcRegister.Dimension ) {
 707          struct  tgsi_dimension *dim;
 708
 709          assert( !reg->SrcRegisterDim.Dimension );
 710
 711          if( maxsize <= size )
 712             return 0;
 713          dim = (struct tgsi_dimension *) &tokens[size];
 714          size++;
 715
 716          *dim = tgsi_build_dimension(
 717             reg->SrcRegisterDim.Indirect,
 718             reg->SrcRegisterDim.Index,
 719             instruction,
 720             header );
 721
 722          if( reg->SrcRegisterDim.Indirect ) {
 723             struct tgsi_src_register *ind;
 724
 725             if( maxsize <= size )
 726                return 0;
 727             ind = (struct tgsi_src_register *) &tokens[size];
 728             size++;
 729
 730             *ind = tgsi_build_src_register(
 731                reg->SrcRegisterDimInd.File,
 732                reg->SrcRegisterDimInd.SwizzleX,
 733                reg->SrcRegisterDimInd.SwizzleY,
 734                reg->SrcRegisterDimInd.SwizzleZ,
 735                reg->SrcRegisterDimInd.SwizzleW,
 736                reg->SrcRegisterDimInd.Negate,
 737                reg->SrcRegisterDimInd.Indirect,
 738                reg->SrcRegisterDimInd.Dimension,
 739                reg->SrcRegisterDimInd.Index,
 740                instruction,
 741                header );
 742          }
 743       }
 744    }
 745
 746    return size;
 747 }
 748
 749 /** test for inequality of 32-bit values pointed to by a and b */
 750 static INLINE boolean
 751 compare32(const void *a, const void *b)
 752 {
 753    return *((uint32_t *) a) != *((uint32_t *) b);
 754 }
 755
 756 struct tgsi_instruction_ext_label
 757 tgsi_default_instruction_ext_label( void )
 758 {
 759    struct tgsi_instruction_ext_label instruction_ext_label;
 760
 761    instruction_ext_label.Type = TGSI_INSTRUCTION_EXT_TYPE_LABEL;
 762    instruction_ext_label.Label = 0;
 763    instruction_ext_label.Padding = 0;
 764    instruction_ext_label.Extended = 0;
 765
 766    return instruction_ext_label;
 767 }
 768
 769 unsigned
 770 tgsi_compare_instruction_ext_label(
 771    struct tgsi_instruction_ext_label a,
 772    struct tgsi_instruction_ext_label b )
 773 {
 774    a.Padding = b.Padding = 0;
 775    a.Extended = b.Extended = 0;
 776    return compare32(&a, &b);
 777 }
 778
 779 struct tgsi_instruction_ext_label
 780 tgsi_build_instruction_ext_label(
 781    unsigned label,
 782    struct tgsi_token  *prev_token,
 783    struct tgsi_instruction *instruction,
 784    struct tgsi_header *header )
 785 {
 786    struct tgsi_instruction_ext_label instruction_ext_label;
 787
 788    instruction_ext_label = tgsi_default_instruction_ext_label();
 789    instruction_ext_label.Label = label;
 790
 791    prev_token->Extended = 1;
 792    instruction_grow( instruction, header );
 793
 794    return instruction_ext_label;
 795 }
 796
 797 struct tgsi_instruction_ext_texture
 798 tgsi_default_instruction_ext_texture( void )
 799 {
 800    struct tgsi_instruction_ext_texture instruction_ext_texture;
 801
 802    instruction_ext_texture.Type = TGSI_INSTRUCTION_EXT_TYPE_TEXTURE;
 803    instruction_ext_texture.Texture = TGSI_TEXTURE_UNKNOWN;
 804    instruction_ext_texture.Padding = 0;
 805    instruction_ext_texture.Extended = 0;
 806
 807    return instruction_ext_texture;
 808 }
 809
 810 unsigned
 811 tgsi_compare_instruction_ext_texture(
 812    struct tgsi_instruction_ext_texture a,
 813    struct tgsi_instruction_ext_texture b )
 814 {
 815    a.Padding = b.Padding = 0;
 816    a.Extended = b.Extended = 0;
 817    return compare32(&a, &b);
 818 }
 819
 820 struct tgsi_instruction_ext_texture
 821 tgsi_build_instruction_ext_texture(
 822    unsigned texture,
 823    struct tgsi_token *prev_token,
 824    struct tgsi_instruction *instruction,
 825    struct tgsi_header *header )
 826 {
 827    struct tgsi_instruction_ext_texture instruction_ext_texture;
 828
 829    instruction_ext_texture = tgsi_default_instruction_ext_texture();
 830    instruction_ext_texture.Texture = texture;
 831
 832    prev_token->Extended = 1;
 833    instruction_grow( instruction, header );
 834
 835    return instruction_ext_texture;
 836 }
 837
 838 struct tgsi_instruction_ext_predicate
 839 tgsi_default_instruction_ext_predicate(void)
 840 {
 841    struct tgsi_instruction_ext_predicate instruction_ext_predicate;
 842
 843    instruction_ext_predicate.Type = TGSI_INSTRUCTION_EXT_TYPE_PREDICATE;
 844    instruction_ext_predicate.SwizzleX = TGSI_SWIZZLE_X;
 845    instruction_ext_predicate.SwizzleY = TGSI_SWIZZLE_Y;
 846    instruction_ext_predicate.SwizzleZ = TGSI_SWIZZLE_Z;
 847    instruction_ext_predicate.SwizzleW = TGSI_SWIZZLE_W;
 848    instruction_ext_predicate.Negate = 0;
 849    instruction_ext_predicate.SrcIndex = 0;
 850    instruction_ext_predicate.Padding = 0;
 851    instruction_ext_predicate.Extended = 0;
 852
 853    return instruction_ext_predicate;
 854 }
 855
 856 unsigned
 857 tgsi_compare_instruction_ext_predicate(struct tgsi_instruction_ext_predicate a,
 858                                        struct tgsi_instruction_ext_predicate b)
 859 {
 860    a.Padding = b.Padding = 0;
 861    a.Extended = b.Extended = 0;
 862    return compare32(&a, &b);
 863 }
 864
 865 struct tgsi_instruction_ext_predicate
 866 tgsi_build_instruction_ext_predicate(unsigned index,
 867                                      unsigned negate,
 868                                      unsigned swizzleX,
 869                                      unsigned swizzleY,
 870                                      unsigned swizzleZ,
 871                                      unsigned swizzleW,
 872                                      struct tgsi_token *prev_token,
 873                                      struct tgsi_instruction *instruction,
 874                                      struct tgsi_header *header)
 875 {
 876    struct tgsi_instruction_ext_predicate instruction_ext_predicate;
 877
 878    instruction_ext_predicate = tgsi_default_instruction_ext_predicate();
 879    instruction_ext_predicate.SwizzleX = swizzleX;
 880    instruction_ext_predicate.SwizzleY = swizzleY;
 881    instruction_ext_predicate.SwizzleZ = swizzleZ;
 882    instruction_ext_predicate.SwizzleW = swizzleW;
 883    instruction_ext_predicate.Negate = negate;
 884    instruction_ext_predicate.SrcIndex = index;
 885
 886    prev_token->Extended = 1;
 887    instruction_grow(instruction, header);
 888
 889    return instruction_ext_predicate;
 890 }
 891
 892 struct tgsi_src_register
 893 tgsi_default_src_register( void )
 894 {
 895    struct tgsi_src_register src_register;
 896
 897    src_register.File = TGSI_FILE_NULL;
 898    src_register.SwizzleX = TGSI_SWIZZLE_X;
 899    src_register.SwizzleY = TGSI_SWIZZLE_Y;
 900    src_register.SwizzleZ = TGSI_SWIZZLE_Z;
 901    src_register.SwizzleW = TGSI_SWIZZLE_W;
 902    src_register.Negate = 0;
 903    src_register.Indirect = 0;
 904    src_register.Dimension = 0;
 905    src_register.Index = 0;
 906    src_register.Extended = 0;
 907
 908    return src_register;
 909 }
 910
 911 struct tgsi_src_register
 912 tgsi_build_src_register(
 913    unsigned file,
 914    unsigned swizzle_x,
 915    unsigned swizzle_y,
 916    unsigned swizzle_z,
 917    unsigned swizzle_w,
 918    unsigned negate,
 919    unsigned indirect,
 920    unsigned dimension,
 921    int index,
 922    struct tgsi_instruction *instruction,
 923    struct tgsi_header *header )
 924 {
 925    struct tgsi_src_register   src_register;
 926
 927    assert( file < TGSI_FILE_COUNT );
 928    assert( swizzle_x <= TGSI_SWIZZLE_W );
 929    assert( swizzle_y <= TGSI_SWIZZLE_W );
 930    assert( swizzle_z <= TGSI_SWIZZLE_W );
 931    assert( swizzle_w <= TGSI_SWIZZLE_W );
 932    assert( negate <= 1 );
 933    assert( index >= -0x8000 && index <= 0x7FFF );
 934
 935    src_register = tgsi_default_src_register();
 936    src_register.File = file;
 937    src_register.SwizzleX = swizzle_x;
 938    src_register.SwizzleY = swizzle_y;
 939    src_register.SwizzleZ = swizzle_z;
 940    src_register.SwizzleW = swizzle_w;
 941    src_register.Negate = negate;
 942    src_register.Indirect = indirect;
 943    src_register.Dimension = dimension;
 944    src_register.Index = index;
 945
 946    instruction_grow( instruction, header );
 947
 948    return src_register;
 949 }
 950
 951 struct tgsi_full_src_register
 952 tgsi_default_full_src_register( void )
 953 {
 954    struct tgsi_full_src_register full_src_register;
 955
 956    full_src_register.SrcRegister = tgsi_default_src_register();
 957    full_src_register.SrcRegisterExtMod = tgsi_default_src_register_ext_mod();
 958    full_src_register.SrcRegisterInd = tgsi_default_src_register();
 959    full_src_register.SrcRegisterDim = tgsi_default_dimension();
 960    full_src_register.SrcRegisterDimInd = tgsi_default_src_register();
 961
 962    return full_src_register;
 963 }
 964
 965
 966 struct tgsi_src_register_ext_mod
 967 tgsi_default_src_register_ext_mod( void )
 968 {
 969    struct tgsi_src_register_ext_mod src_register_ext_mod;
 970
 971    src_register_ext_mod.Type = TGSI_SRC_REGISTER_EXT_TYPE_MOD;
 972    src_register_ext_mod.Complement = 0;
 973    src_register_ext_mod.Bias = 0;
 974    src_register_ext_mod.Scale2X = 0;
 975    src_register_ext_mod.Absolute = 0;
 976    src_register_ext_mod.Negate = 0;
 977    src_register_ext_mod.Padding = 0;
 978    src_register_ext_mod.Extended = 0;
 979
 980    return src_register_ext_mod;
 981 }
 982
 983 unsigned
 984 tgsi_compare_src_register_ext_mod(
 985    struct tgsi_src_register_ext_mod a,
 986    struct tgsi_src_register_ext_mod b )
 987 {
 988    a.Padding = b.Padding = 0;
 989    a.Extended = b.Extended = 0;
 990    return compare32(&a, &b);
 991 }
 992
 993 struct tgsi_src_register_ext_mod
 994 tgsi_build_src_register_ext_mod(
 995    unsigned complement,
 996    unsigned bias,
 997    unsigned scale_2x,
 998    unsigned absolute,
 999    unsigned negate,
1000    struct tgsi_token *prev_token,
1001    struct tgsi_instruction *instruction,
1002    struct tgsi_header *header )
1003 {
1004    struct tgsi_src_register_ext_mod src_register_ext_mod;
1005
1006    assert( complement <= 1 );
1007    assert( bias <= 1 );
1008    assert( scale_2x <= 1 );
1009    assert( absolute <= 1 );
1010    assert( negate <= 1 );
1011
1012    src_register_ext_mod = tgsi_default_src_register_ext_mod();
1013    src_register_ext_mod.Complement = complement;
1014    src_register_ext_mod.Bias = bias;
1015    src_register_ext_mod.Scale2X = scale_2x;
1016    src_register_ext_mod.Absolute = absolute;
1017    src_register_ext_mod.Negate = negate;
1018
1019    prev_token->Extended = 1;
1020    instruction_grow( instruction, header );
1021
1022    return src_register_ext_mod;
1023 }
1024
1025 struct tgsi_dimension
1026 tgsi_default_dimension( void )
1027 {
1028    struct tgsi_dimension dimension;
1029
1030    dimension.Indirect = 0;
1031    dimension.Dimension = 0;
1032    dimension.Padding = 0;
1033    dimension.Index = 0;
1034    dimension.Extended = 0;
1035
1036    return dimension;
1037 }
1038
1039 struct tgsi_dimension
1040 tgsi_build_dimension(
1041    unsigned indirect,
1042    unsigned index,
1043    struct tgsi_instruction *instruction,
1044    struct tgsi_header *header )
1045 {
1046    struct tgsi_dimension dimension;
1047
1048    dimension = tgsi_default_dimension();
1049    dimension.Indirect = indirect;
1050    dimension.Index = index;
1051
1052    instruction_grow( instruction, header );
1053
1054    return dimension;
1055 }
1056
1057 struct tgsi_dst_register
1058 tgsi_default_dst_register( void )
1059 {
1060    struct tgsi_dst_register dst_register;
1061
1062    dst_register.File = TGSI_FILE_NULL;
1063    dst_register.WriteMask = TGSI_WRITEMASK_XYZW;
1064    dst_register.Indirect = 0;
1065    dst_register.Dimension = 0;
1066    dst_register.Index = 0;
1067    dst_register.Padding = 0;
1068    dst_register.Extended = 0;
1069
1070    return dst_register;
1071 }
1072
1073 struct tgsi_dst_register
1074 tgsi_build_dst_register(
1075    unsigned file,
1076    unsigned mask,
1077    unsigned indirect,
1078    int index,
1079    struct tgsi_instruction *instruction,
1080    struct tgsi_header *header )
1081 {
1082    struct tgsi_dst_register dst_register;
1083
1084    assert( file < TGSI_FILE_COUNT );
1085    assert( mask <= TGSI_WRITEMASK_XYZW );
1086    assert( index >= -32768 && index <= 32767 );
1087
1088    dst_register = tgsi_default_dst_register();
1089    dst_register.File = file;
1090    dst_register.WriteMask = mask;
1091    dst_register.Index = index;
1092    dst_register.Indirect = indirect;
1093
1094    instruction_grow( instruction, header );
1095
1096    return dst_register;
1097 }
1098
1099 struct tgsi_full_dst_register
1100 tgsi_default_full_dst_register( void )
1101 {
1102    struct tgsi_full_dst_register full_dst_register;
1103
1104    full_dst_register.DstRegister = tgsi_default_dst_register();
1105    full_dst_register.DstRegisterInd = tgsi_default_src_register();
1106    full_dst_register.DstRegisterExtModulate =
1107       tgsi_default_dst_register_ext_modulate();
1108
1109    return full_dst_register;
1110 }
1111
1112 struct tgsi_dst_register_ext_modulate
1113 tgsi_default_dst_register_ext_modulate( void )
1114 {
1115    struct tgsi_dst_register_ext_modulate dst_register_ext_modulate;
1116
1117    dst_register_ext_modulate.Type = TGSI_DST_REGISTER_EXT_TYPE_MODULATE;
1118    dst_register_ext_modulate.Modulate = TGSI_MODULATE_1X;
1119    dst_register_ext_modulate.Padding = 0;
1120    dst_register_ext_modulate.Extended = 0;
1121
1122    return dst_register_ext_modulate;
1123 }
1124
1125 unsigned
1126 tgsi_compare_dst_register_ext_modulate(
1127    struct tgsi_dst_register_ext_modulate a,
1128    struct tgsi_dst_register_ext_modulate b )
1129 {
1130    a.Padding = b.Padding = 0;
1131    a.Extended = b.Extended = 0;
1132    return compare32(&a, &b);
1133 }
1134
1135 struct tgsi_dst_register_ext_modulate
1136 tgsi_build_dst_register_ext_modulate(
1137    unsigned modulate,
1138    struct tgsi_token *prev_token,
1139    struct tgsi_instruction *instruction,
1140    struct tgsi_header *header )
1141 {
1142    struct tgsi_dst_register_ext_modulate dst_register_ext_modulate;
1143
1144    assert( modulate <= TGSI_MODULATE_EIGHTH );
1145
1146    dst_register_ext_modulate = tgsi_default_dst_register_ext_modulate();
1147    dst_register_ext_modulate.Modulate = modulate;
1148
1149    prev_token->Extended = 1;
1150    instruction_grow( instruction, header );
1151
1152    return dst_register_ext_modulate;
1153 }