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.InstructionExtNv = tgsi_default_instruction_ext_nv();
 476    full_instruction.InstructionExtLabel = tgsi_default_instruction_ext_label();
 477    full_instruction.InstructionExtTexture = tgsi_default_instruction_ext_texture();
 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_nv(
 516          full_inst->InstructionExtNv,
 517          tgsi_default_instruction_ext_nv() ) ) {
 518       struct tgsi_instruction_ext_nv *instruction_ext_nv;
 519
 520       if( maxsize <= size )
 521          return 0;
 522       instruction_ext_nv =
 523          (struct  tgsi_instruction_ext_nv *) &tokens[size];
 524       size++;
 525
 526       *instruction_ext_nv  = tgsi_build_instruction_ext_nv(
 527          full_inst->InstructionExtNv.Precision,
 528          full_inst->InstructionExtNv.CondDstIndex,
 529          full_inst->InstructionExtNv.CondFlowIndex,
 530          full_inst->InstructionExtNv.CondMask,
 531          full_inst->InstructionExtNv.CondSwizzleX,
 532          full_inst->InstructionExtNv.CondSwizzleY,
 533          full_inst->InstructionExtNv.CondSwizzleZ,
 534          full_inst->InstructionExtNv.CondSwizzleW,
 535          full_inst->InstructionExtNv.CondDstUpdate,
 536          full_inst->InstructionExtNv.CondFlowEnable,
 537          prev_token,
 538          instruction,
 539          header );
 540       prev_token = (struct tgsi_token  *) instruction_ext_nv;
 541    }
 542
 543    if( tgsi_compare_instruction_ext_label(
 544          full_inst->InstructionExtLabel,
 545          tgsi_default_instruction_ext_label() ) ) {
 546       struct tgsi_instruction_ext_label *instruction_ext_label;
 547
 548       if( maxsize <= size )
 549          return 0;
 550       instruction_ext_label =
 551          (struct  tgsi_instruction_ext_label *) &tokens[size];
 552       size++;
 553
 554       *instruction_ext_label = tgsi_build_instruction_ext_label(
 555          full_inst->InstructionExtLabel.Label,
 556          prev_token,
 557          instruction,
 558          header );
 559       prev_token = (struct tgsi_token  *) instruction_ext_label;
 560    }
 561
 562    if( tgsi_compare_instruction_ext_texture(
 563          full_inst->InstructionExtTexture,
 564          tgsi_default_instruction_ext_texture() ) ) {
 565       struct tgsi_instruction_ext_texture *instruction_ext_texture;
 566
 567       if( maxsize <= size )
 568          return 0;
 569       instruction_ext_texture =
 570          (struct  tgsi_instruction_ext_texture *) &tokens[size];
 571       size++;
 572
 573       *instruction_ext_texture = tgsi_build_instruction_ext_texture(
 574          full_inst->InstructionExtTexture.Texture,
 575          prev_token,
 576          instruction,
 577          header   );
 578       prev_token = (struct tgsi_token  *) instruction_ext_texture;
 579    }
 580
 581    for( i = 0;  i <   full_inst->Instruction.NumDstRegs; i++ ) {
 582       const struct tgsi_full_dst_register *reg = &full_inst->FullDstRegisters[i];
 583       struct tgsi_dst_register *dst_register;
 584       struct tgsi_token *prev_token;
 585
 586       if( maxsize <= size )
 587          return 0;
 588       dst_register = (struct tgsi_dst_register *) &tokens[size];
 589       size++;
 590
 591       *dst_register = tgsi_build_dst_register(
 592          reg->DstRegister.File,
 593          reg->DstRegister.WriteMask,
 594          reg->DstRegister.Indirect,
 595          reg->DstRegister.Index,
 596          instruction,
 597          header );
 598       prev_token = (struct tgsi_token  *) dst_register;
 599
 600       if( tgsi_compare_dst_register_ext_concode(
 601             reg->DstRegisterExtConcode,
 602             tgsi_default_dst_register_ext_concode() ) ) {
 603          struct tgsi_dst_register_ext_concode *dst_register_ext_concode;
 604
 605          if( maxsize <= size )
 606             return 0;
 607          dst_register_ext_concode =
 608             (struct  tgsi_dst_register_ext_concode *) &tokens[size];
 609          size++;
 610
 611          *dst_register_ext_concode =   tgsi_build_dst_register_ext_concode(
 612             reg->DstRegisterExtConcode.CondMask,
 613             reg->DstRegisterExtConcode.CondSwizzleX,
 614             reg->DstRegisterExtConcode.CondSwizzleY,
 615             reg->DstRegisterExtConcode.CondSwizzleZ,
 616             reg->DstRegisterExtConcode.CondSwizzleW,
 617             reg->DstRegisterExtConcode.CondSrcIndex,
 618             prev_token,
 619             instruction,
 620             header );
 621          prev_token = (struct tgsi_token  *) dst_register_ext_concode;
 622       }
 623
 624       if( tgsi_compare_dst_register_ext_modulate(
 625             reg->DstRegisterExtModulate,
 626             tgsi_default_dst_register_ext_modulate() ) ) {
 627          struct tgsi_dst_register_ext_modulate *dst_register_ext_modulate;
 628
 629          if( maxsize <= size )
 630             return 0;
 631          dst_register_ext_modulate =
 632             (struct  tgsi_dst_register_ext_modulate *) &tokens[size];
 633          size++;
 634
 635          *dst_register_ext_modulate = tgsi_build_dst_register_ext_modulate(
 636             reg->DstRegisterExtModulate.Modulate,
 637             prev_token,
 638             instruction,
 639             header );
 640          prev_token = (struct tgsi_token  *) dst_register_ext_modulate;
 641       }
 642
 643       if( reg->DstRegister.Indirect ) {
 644          struct tgsi_src_register *ind;
 645
 646          if( maxsize <= size )
 647             return 0;
 648          ind = (struct tgsi_src_register *) &tokens[size];
 649          size++;
 650
 651          *ind = tgsi_build_src_register(
 652             reg->DstRegisterInd.File,
 653             reg->DstRegisterInd.SwizzleX,
 654             reg->DstRegisterInd.SwizzleY,
 655             reg->DstRegisterInd.SwizzleZ,
 656             reg->DstRegisterInd.SwizzleW,
 657             reg->DstRegisterInd.Negate,
 658             reg->DstRegisterInd.Indirect,
 659             reg->DstRegisterInd.Dimension,
 660             reg->DstRegisterInd.Index,
 661             instruction,
 662             header );
 663       }
 664    }
 665
 666    for( i = 0;  i < full_inst->Instruction.NumSrcRegs; i++ ) {
 667       const struct tgsi_full_src_register *reg = &full_inst->FullSrcRegisters[i];
 668       struct tgsi_src_register *src_register;
 669       struct tgsi_token *prev_token;
 670
 671       if( maxsize <= size )
 672          return 0;
 673       src_register = (struct tgsi_src_register *)  &tokens[size];
 674       size++;
 675
 676       *src_register = tgsi_build_src_register(
 677          reg->SrcRegister.File,
 678          reg->SrcRegister.SwizzleX,
 679          reg->SrcRegister.SwizzleY,
 680          reg->SrcRegister.SwizzleZ,
 681          reg->SrcRegister.SwizzleW,
 682          reg->SrcRegister.Negate,
 683          reg->SrcRegister.Indirect,
 684          reg->SrcRegister.Dimension,
 685          reg->SrcRegister.Index,
 686          instruction,
 687          header );
 688       prev_token = (struct tgsi_token  *) src_register;
 689
 690       if( tgsi_compare_src_register_ext_mod(
 691             reg->SrcRegisterExtMod,
 692             tgsi_default_src_register_ext_mod() ) ) {
 693          struct tgsi_src_register_ext_mod *src_register_ext_mod;
 694
 695          if( maxsize <= size )
 696             return 0;
 697          src_register_ext_mod =
 698             (struct  tgsi_src_register_ext_mod *) &tokens[size];
 699          size++;
 700
 701          *src_register_ext_mod = tgsi_build_src_register_ext_mod(
 702             reg->SrcRegisterExtMod.Complement,
 703             reg->SrcRegisterExtMod.Bias,
 704             reg->SrcRegisterExtMod.Scale2X,
 705             reg->SrcRegisterExtMod.Absolute,
 706             reg->SrcRegisterExtMod.Negate,
 707             prev_token,
 708             instruction,
 709             header );
 710          prev_token = (struct tgsi_token  *) src_register_ext_mod;
 711       }
 712
 713       if( reg->SrcRegister.Indirect ) {
 714          struct  tgsi_src_register *ind;
 715
 716          if( maxsize <= size )
 717             return 0;
 718          ind = (struct tgsi_src_register *) &tokens[size];
 719          size++;
 720
 721          *ind = tgsi_build_src_register(
 722             reg->SrcRegisterInd.File,
 723             reg->SrcRegisterInd.SwizzleX,
 724             reg->SrcRegisterInd.SwizzleY,
 725             reg->SrcRegisterInd.SwizzleZ,
 726             reg->SrcRegisterInd.SwizzleW,
 727             reg->SrcRegisterInd.Negate,
 728             reg->SrcRegisterInd.Indirect,
 729             reg->SrcRegisterInd.Dimension,
 730             reg->SrcRegisterInd.Index,
 731             instruction,
 732             header );
 733       }
 734
 735       if( reg->SrcRegister.Dimension ) {
 736          struct  tgsi_dimension *dim;
 737
 738          assert( !reg->SrcRegisterDim.Dimension );
 739
 740          if( maxsize <= size )
 741             return 0;
 742          dim = (struct tgsi_dimension *) &tokens[size];
 743          size++;
 744
 745          *dim = tgsi_build_dimension(
 746             reg->SrcRegisterDim.Indirect,
 747             reg->SrcRegisterDim.Index,
 748             instruction,
 749             header );
 750
 751          if( reg->SrcRegisterDim.Indirect ) {
 752             struct tgsi_src_register *ind;
 753
 754             if( maxsize <= size )
 755                return 0;
 756             ind = (struct tgsi_src_register *) &tokens[size];
 757             size++;
 758
 759             *ind = tgsi_build_src_register(
 760                reg->SrcRegisterDimInd.File,
 761                reg->SrcRegisterDimInd.SwizzleX,
 762                reg->SrcRegisterDimInd.SwizzleY,
 763                reg->SrcRegisterDimInd.SwizzleZ,
 764                reg->SrcRegisterDimInd.SwizzleW,
 765                reg->SrcRegisterDimInd.Negate,
 766                reg->SrcRegisterDimInd.Indirect,
 767                reg->SrcRegisterDimInd.Dimension,
 768                reg->SrcRegisterDimInd.Index,
 769                instruction,
 770                header );
 771          }
 772       }
 773    }
 774
 775    return size;
 776 }
 777
 778 struct tgsi_instruction_ext_nv
 779 tgsi_default_instruction_ext_nv( void )
 780 {
 781    struct tgsi_instruction_ext_nv instruction_ext_nv;
 782
 783    instruction_ext_nv.Type = TGSI_INSTRUCTION_EXT_TYPE_NV;
 784    instruction_ext_nv.Precision = TGSI_PRECISION_DEFAULT;
 785    instruction_ext_nv.CondDstIndex = 0;
 786    instruction_ext_nv.CondFlowIndex = 0;
 787    instruction_ext_nv.CondMask = TGSI_CC_TR;
 788    instruction_ext_nv.CondSwizzleX = TGSI_SWIZZLE_X;
 789    instruction_ext_nv.CondSwizzleY = TGSI_SWIZZLE_Y;
 790    instruction_ext_nv.CondSwizzleZ = TGSI_SWIZZLE_Z;
 791    instruction_ext_nv.CondSwizzleW = TGSI_SWIZZLE_W;
 792    instruction_ext_nv.CondDstUpdate = 0;
 793    instruction_ext_nv.CondFlowEnable = 0;
 794    instruction_ext_nv.Padding = 0;
 795    instruction_ext_nv.Extended = 0;
 796
 797    return instruction_ext_nv;
 798 }
 799
 800
 801 /** test for inequality of 32-bit values pointed to by a and b */
 802 static INLINE boolean
 803 compare32(const void *a, const void *b)
 804 {
 805    return *((uint32_t *) a) != *((uint32_t *) b);
 806 }
 807
 808
 809 unsigned
 810 tgsi_compare_instruction_ext_nv(
 811    struct tgsi_instruction_ext_nv a,
 812    struct tgsi_instruction_ext_nv b )
 813 {
 814    a.Padding = b.Padding = 0;
 815    a.Extended = b.Extended = 0;
 816    return compare32(&a, &b);
 817 }
 818
 819 struct tgsi_instruction_ext_nv
 820 tgsi_build_instruction_ext_nv(
 821    unsigned precision,
 822    unsigned cond_dst_index,
 823    unsigned cond_flow_index,
 824    unsigned cond_mask,
 825    unsigned cond_swizzle_x,
 826    unsigned cond_swizzle_y,
 827    unsigned cond_swizzle_z,
 828    unsigned cond_swizzle_w,
 829    unsigned cond_dst_update,
 830    unsigned cond_flow_enable,
 831    struct tgsi_token *prev_token,
 832    struct tgsi_instruction *instruction,
 833    struct tgsi_header *header )
 834 {
 835    struct tgsi_instruction_ext_nv instruction_ext_nv;
 836
 837    instruction_ext_nv = tgsi_default_instruction_ext_nv();
 838    instruction_ext_nv.Precision = precision;
 839    instruction_ext_nv.CondDstIndex = cond_dst_index;
 840    instruction_ext_nv.CondFlowIndex = cond_flow_index;
 841    instruction_ext_nv.CondMask = cond_mask;
 842    instruction_ext_nv.CondSwizzleX = cond_swizzle_x;
 843    instruction_ext_nv.CondSwizzleY = cond_swizzle_y;
 844    instruction_ext_nv.CondSwizzleZ = cond_swizzle_z;
 845    instruction_ext_nv.CondSwizzleW = cond_swizzle_w;
 846    instruction_ext_nv.CondDstUpdate = cond_dst_update;
 847    instruction_ext_nv.CondFlowEnable = cond_flow_enable;
 848
 849    prev_token->Extended = 1;
 850    instruction_grow( instruction, header );
 851
 852    return instruction_ext_nv;
 853 }
 854
 855 struct tgsi_instruction_ext_label
 856 tgsi_default_instruction_ext_label( void )
 857 {
 858    struct tgsi_instruction_ext_label instruction_ext_label;
 859
 860    instruction_ext_label.Type = TGSI_INSTRUCTION_EXT_TYPE_LABEL;
 861    instruction_ext_label.Label = 0;
 862    instruction_ext_label.Padding = 0;
 863    instruction_ext_label.Extended = 0;
 864
 865    return instruction_ext_label;
 866 }
 867
 868 unsigned
 869 tgsi_compare_instruction_ext_label(
 870    struct tgsi_instruction_ext_label a,
 871    struct tgsi_instruction_ext_label b )
 872 {
 873    a.Padding = b.Padding = 0;
 874    a.Extended = b.Extended = 0;
 875    return compare32(&a, &b);
 876 }
 877
 878 struct tgsi_instruction_ext_label
 879 tgsi_build_instruction_ext_label(
 880    unsigned label,
 881    struct tgsi_token  *prev_token,
 882    struct tgsi_instruction *instruction,
 883    struct tgsi_header *header )
 884 {
 885    struct tgsi_instruction_ext_label instruction_ext_label;
 886
 887    instruction_ext_label = tgsi_default_instruction_ext_label();
 888    instruction_ext_label.Label = label;
 889
 890    prev_token->Extended = 1;
 891    instruction_grow( instruction, header );
 892
 893    return instruction_ext_label;
 894 }
 895
 896 struct tgsi_instruction_ext_texture
 897 tgsi_default_instruction_ext_texture( void )
 898 {
 899    struct tgsi_instruction_ext_texture instruction_ext_texture;
 900
 901    instruction_ext_texture.Type = TGSI_INSTRUCTION_EXT_TYPE_TEXTURE;
 902    instruction_ext_texture.Texture = TGSI_TEXTURE_UNKNOWN;
 903    instruction_ext_texture.Padding = 0;
 904    instruction_ext_texture.Extended = 0;
 905
 906    return instruction_ext_texture;
 907 }
 908
 909 unsigned
 910 tgsi_compare_instruction_ext_texture(
 911    struct tgsi_instruction_ext_texture a,
 912    struct tgsi_instruction_ext_texture b )
 913 {
 914    a.Padding = b.Padding = 0;
 915    a.Extended = b.Extended = 0;
 916    return compare32(&a, &b);
 917 }
 918
 919 struct tgsi_instruction_ext_texture
 920 tgsi_build_instruction_ext_texture(
 921    unsigned texture,
 922    struct tgsi_token *prev_token,
 923    struct tgsi_instruction *instruction,
 924    struct tgsi_header *header )
 925 {
 926    struct tgsi_instruction_ext_texture instruction_ext_texture;
 927
 928    instruction_ext_texture = tgsi_default_instruction_ext_texture();
 929    instruction_ext_texture.Texture = texture;
 930
 931    prev_token->Extended = 1;
 932    instruction_grow( instruction, header );
 933
 934    return instruction_ext_texture;
 935 }
 936
 937 struct tgsi_src_register
 938 tgsi_default_src_register( void )
 939 {
 940    struct tgsi_src_register src_register;
 941
 942    src_register.File = TGSI_FILE_NULL;
 943    src_register.SwizzleX = TGSI_SWIZZLE_X;
 944    src_register.SwizzleY = TGSI_SWIZZLE_Y;
 945    src_register.SwizzleZ = TGSI_SWIZZLE_Z;
 946    src_register.SwizzleW = TGSI_SWIZZLE_W;
 947    src_register.Negate = 0;
 948    src_register.Indirect = 0;
 949    src_register.Dimension = 0;
 950    src_register.Index = 0;
 951    src_register.Extended = 0;
 952
 953    return src_register;
 954 }
 955
 956 struct tgsi_src_register
 957 tgsi_build_src_register(
 958    unsigned file,
 959    unsigned swizzle_x,
 960    unsigned swizzle_y,
 961    unsigned swizzle_z,
 962    unsigned swizzle_w,
 963    unsigned negate,
 964    unsigned indirect,
 965    unsigned dimension,
 966    int index,
 967    struct tgsi_instruction *instruction,
 968    struct tgsi_header *header )
 969 {
 970    struct tgsi_src_register   src_register;
 971
 972    assert( file < TGSI_FILE_COUNT );
 973    assert( swizzle_x <= TGSI_SWIZZLE_W );
 974    assert( swizzle_y <= TGSI_SWIZZLE_W );
 975    assert( swizzle_z <= TGSI_SWIZZLE_W );
 976    assert( swizzle_w <= TGSI_SWIZZLE_W );
 977    assert( negate <= 1 );
 978    assert( index >= -0x8000 && index <= 0x7FFF );
 979
 980    src_register = tgsi_default_src_register();
 981    src_register.File = file;
 982    src_register.SwizzleX = swizzle_x;
 983    src_register.SwizzleY = swizzle_y;
 984    src_register.SwizzleZ = swizzle_z;
 985    src_register.SwizzleW = swizzle_w;
 986    src_register.Negate = negate;
 987    src_register.Indirect = indirect;
 988    src_register.Dimension = dimension;
 989    src_register.Index = index;
 990
 991    instruction_grow( instruction, header );
 992
 993    return src_register;
 994 }
 995
 996 struct tgsi_full_src_register
 997 tgsi_default_full_src_register( void )
 998 {
 999    struct tgsi_full_src_register full_src_register;
1000
1001    full_src_register.SrcRegister = tgsi_default_src_register();
1002    full_src_register.SrcRegisterExtMod = tgsi_default_src_register_ext_mod();
1003    full_src_register.SrcRegisterInd = tgsi_default_src_register();
1004    full_src_register.SrcRegisterDim = tgsi_default_dimension();
1005    full_src_register.SrcRegisterDimInd = tgsi_default_src_register();
1006
1007    return full_src_register;
1008 }
1009
1010
1011 struct tgsi_src_register_ext_mod
1012 tgsi_default_src_register_ext_mod( void )
1013 {
1014    struct tgsi_src_register_ext_mod src_register_ext_mod;
1015
1016    src_register_ext_mod.Type = TGSI_SRC_REGISTER_EXT_TYPE_MOD;
1017    src_register_ext_mod.Complement = 0;
1018    src_register_ext_mod.Bias = 0;
1019    src_register_ext_mod.Scale2X = 0;
1020    src_register_ext_mod.Absolute = 0;
1021    src_register_ext_mod.Negate = 0;
1022    src_register_ext_mod.Padding = 0;
1023    src_register_ext_mod.Extended = 0;
1024
1025    return src_register_ext_mod;
1026 }
1027
1028 unsigned
1029 tgsi_compare_src_register_ext_mod(
1030    struct tgsi_src_register_ext_mod a,
1031    struct tgsi_src_register_ext_mod b )
1032 {
1033    a.Padding = b.Padding = 0;
1034    a.Extended = b.Extended = 0;
1035    return compare32(&a, &b);
1036 }
1037
1038 struct tgsi_src_register_ext_mod
1039 tgsi_build_src_register_ext_mod(
1040    unsigned complement,
1041    unsigned bias,
1042    unsigned scale_2x,
1043    unsigned absolute,
1044    unsigned negate,
1045    struct tgsi_token *prev_token,
1046    struct tgsi_instruction *instruction,
1047    struct tgsi_header *header )
1048 {
1049    struct tgsi_src_register_ext_mod src_register_ext_mod;
1050
1051    assert( complement <= 1 );
1052    assert( bias <= 1 );
1053    assert( scale_2x <= 1 );
1054    assert( absolute <= 1 );
1055    assert( negate <= 1 );
1056
1057    src_register_ext_mod = tgsi_default_src_register_ext_mod();
1058    src_register_ext_mod.Complement = complement;
1059    src_register_ext_mod.Bias = bias;
1060    src_register_ext_mod.Scale2X = scale_2x;
1061    src_register_ext_mod.Absolute = absolute;
1062    src_register_ext_mod.Negate = negate;
1063
1064    prev_token->Extended = 1;
1065    instruction_grow( instruction, header );
1066
1067    return src_register_ext_mod;
1068 }
1069
1070 struct tgsi_dimension
1071 tgsi_default_dimension( void )
1072 {
1073    struct tgsi_dimension dimension;
1074
1075    dimension.Indirect = 0;
1076    dimension.Dimension = 0;
1077    dimension.Padding = 0;
1078    dimension.Index = 0;
1079    dimension.Extended = 0;
1080
1081    return dimension;
1082 }
1083
1084 struct tgsi_dimension
1085 tgsi_build_dimension(
1086    unsigned indirect,
1087    unsigned index,
1088    struct tgsi_instruction *instruction,
1089    struct tgsi_header *header )
1090 {
1091    struct tgsi_dimension dimension;
1092
1093    dimension = tgsi_default_dimension();
1094    dimension.Indirect = indirect;
1095    dimension.Index = index;
1096
1097    instruction_grow( instruction, header );
1098
1099    return dimension;
1100 }
1101
1102 struct tgsi_dst_register
1103 tgsi_default_dst_register( void )
1104 {
1105    struct tgsi_dst_register dst_register;
1106
1107    dst_register.File = TGSI_FILE_NULL;
1108    dst_register.WriteMask = TGSI_WRITEMASK_XYZW;
1109    dst_register.Indirect = 0;
1110    dst_register.Dimension = 0;
1111    dst_register.Index = 0;
1112    dst_register.Padding = 0;
1113    dst_register.Extended = 0;
1114
1115    return dst_register;
1116 }
1117
1118 struct tgsi_dst_register
1119 tgsi_build_dst_register(
1120    unsigned file,
1121    unsigned mask,
1122    unsigned indirect,
1123    int index,
1124    struct tgsi_instruction *instruction,
1125    struct tgsi_header *header )
1126 {
1127    struct tgsi_dst_register dst_register;
1128
1129    assert( file < TGSI_FILE_COUNT );
1130    assert( mask <= TGSI_WRITEMASK_XYZW );
1131    assert( index >= -32768 && index <= 32767 );
1132
1133    dst_register = tgsi_default_dst_register();
1134    dst_register.File = file;
1135    dst_register.WriteMask = mask;
1136    dst_register.Index = index;
1137    dst_register.Indirect = indirect;
1138
1139    instruction_grow( instruction, header );
1140
1141    return dst_register;
1142 }
1143
1144 struct tgsi_full_dst_register
1145 tgsi_default_full_dst_register( void )
1146 {
1147    struct tgsi_full_dst_register full_dst_register;
1148
1149    full_dst_register.DstRegister = tgsi_default_dst_register();
1150    full_dst_register.DstRegisterInd = tgsi_default_src_register();
1151    full_dst_register.DstRegisterExtConcode =
1152       tgsi_default_dst_register_ext_concode();
1153    full_dst_register.DstRegisterExtModulate =
1154       tgsi_default_dst_register_ext_modulate();
1155
1156    return full_dst_register;
1157 }
1158
1159 struct tgsi_dst_register_ext_concode
1160 tgsi_default_dst_register_ext_concode( void )
1161 {
1162    struct tgsi_dst_register_ext_concode dst_register_ext_concode;
1163
1164    dst_register_ext_concode.Type = TGSI_DST_REGISTER_EXT_TYPE_CONDCODE;
1165    dst_register_ext_concode.CondMask = TGSI_CC_TR;
1166    dst_register_ext_concode.CondSwizzleX = TGSI_SWIZZLE_X;
1167    dst_register_ext_concode.CondSwizzleY = TGSI_SWIZZLE_Y;
1168    dst_register_ext_concode.CondSwizzleZ = TGSI_SWIZZLE_Z;
1169    dst_register_ext_concode.CondSwizzleW = TGSI_SWIZZLE_W;
1170    dst_register_ext_concode.CondSrcIndex = 0;
1171    dst_register_ext_concode.Padding = 0;
1172    dst_register_ext_concode.Extended = 0;
1173
1174    return dst_register_ext_concode;
1175 }
1176
1177 unsigned
1178 tgsi_compare_dst_register_ext_concode(
1179    struct tgsi_dst_register_ext_concode a,
1180    struct tgsi_dst_register_ext_concode b )
1181 {
1182    a.Padding = b.Padding = 0;
1183    a.Extended = b.Extended = 0;
1184    return compare32(&a, &b);
1185 }
1186
1187 struct tgsi_dst_register_ext_concode
1188 tgsi_build_dst_register_ext_concode(
1189    unsigned cc,
1190    unsigned swizzle_x,
1191    unsigned swizzle_y,
1192    unsigned swizzle_z,
1193    unsigned swizzle_w,
1194    int index,
1195    struct tgsi_token *prev_token,
1196    struct tgsi_instruction *instruction,
1197    struct tgsi_header *header )
1198 {
1199    struct tgsi_dst_register_ext_concode dst_register_ext_concode;
1200
1201    assert( cc <= TGSI_CC_FL );
1202    assert( swizzle_x <= TGSI_SWIZZLE_W );
1203    assert( swizzle_y <= TGSI_SWIZZLE_W );
1204    assert( swizzle_z <= TGSI_SWIZZLE_W );
1205    assert( swizzle_w <= TGSI_SWIZZLE_W );
1206    assert( index >= -32768 && index <= 32767 );
1207
1208    dst_register_ext_concode = tgsi_default_dst_register_ext_concode();
1209    dst_register_ext_concode.CondMask = cc;
1210    dst_register_ext_concode.CondSwizzleX = swizzle_x;
1211    dst_register_ext_concode.CondSwizzleY = swizzle_y;
1212    dst_register_ext_concode.CondSwizzleZ = swizzle_z;
1213    dst_register_ext_concode.CondSwizzleW = swizzle_w;
1214    dst_register_ext_concode.CondSrcIndex = index;
1215
1216    prev_token->Extended = 1;
1217    instruction_grow( instruction, header );
1218
1219    return dst_register_ext_concode;
1220 }
1221
1222 struct tgsi_dst_register_ext_modulate
1223 tgsi_default_dst_register_ext_modulate( void )
1224 {
1225    struct tgsi_dst_register_ext_modulate dst_register_ext_modulate;
1226
1227    dst_register_ext_modulate.Type = TGSI_DST_REGISTER_EXT_TYPE_MODULATE;
1228    dst_register_ext_modulate.Modulate = TGSI_MODULATE_1X;
1229    dst_register_ext_modulate.Padding = 0;
1230    dst_register_ext_modulate.Extended = 0;
1231
1232    return dst_register_ext_modulate;
1233 }
1234
1235 unsigned
1236 tgsi_compare_dst_register_ext_modulate(
1237    struct tgsi_dst_register_ext_modulate a,
1238    struct tgsi_dst_register_ext_modulate b )
1239 {
1240    a.Padding = b.Padding = 0;
1241    a.Extended = b.Extended = 0;
1242    return compare32(&a, &b);
1243 }
1244
1245 struct tgsi_dst_register_ext_modulate
1246 tgsi_build_dst_register_ext_modulate(
1247    unsigned modulate,
1248    struct tgsi_token *prev_token,
1249    struct tgsi_instruction *instruction,
1250    struct tgsi_header *header )
1251 {
1252    struct tgsi_dst_register_ext_modulate dst_register_ext_modulate;
1253
1254    assert( modulate <= TGSI_MODULATE_EIGHTH );
1255
1256    dst_register_ext_modulate = tgsi_default_dst_register_ext_modulate();
1257    dst_register_ext_modulate.Modulate = modulate;
1258
1259    prev_token->Extended = 1;
1260    instruction_grow( instruction, header );
1261
1262    return dst_register_ext_modulate;
1263 }