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_swz(
 691             reg->SrcRegisterExtSwz,
 692             tgsi_default_src_register_ext_swz() ) ) {
 693          struct tgsi_src_register_ext_swz *src_register_ext_swz;
 694
 695          /* Use of the extended negate requires the simple negate to be identity.
 696           */
 697          assert( reg->SrcRegister.Negate == FALSE );
 698
 699          if( maxsize <= size )
 700             return 0;
 701          src_register_ext_swz =
 702             (struct  tgsi_src_register_ext_swz *) &tokens[size];
 703          size++;
 704
 705          *src_register_ext_swz = tgsi_build_src_register_ext_swz(
 706             reg->SrcRegisterExtSwz.NegateX,
 707             reg->SrcRegisterExtSwz.NegateY,
 708             reg->SrcRegisterExtSwz.NegateZ,
 709             reg->SrcRegisterExtSwz.NegateW,
 710             prev_token,
 711             instruction,
 712             header );
 713          prev_token = (struct tgsi_token  *) src_register_ext_swz;
 714       }
 715
 716       if( tgsi_compare_src_register_ext_mod(
 717             reg->SrcRegisterExtMod,
 718             tgsi_default_src_register_ext_mod() ) ) {
 719          struct tgsi_src_register_ext_mod *src_register_ext_mod;
 720
 721          if( maxsize <= size )
 722             return 0;
 723          src_register_ext_mod =
 724             (struct  tgsi_src_register_ext_mod *) &tokens[size];
 725          size++;
 726
 727          *src_register_ext_mod = tgsi_build_src_register_ext_mod(
 728             reg->SrcRegisterExtMod.Complement,
 729             reg->SrcRegisterExtMod.Bias,
 730             reg->SrcRegisterExtMod.Scale2X,
 731             reg->SrcRegisterExtMod.Absolute,
 732             reg->SrcRegisterExtMod.Negate,
 733             prev_token,
 734             instruction,
 735             header );
 736          prev_token = (struct tgsi_token  *) src_register_ext_mod;
 737       }
 738
 739       if( reg->SrcRegister.Indirect ) {
 740          struct  tgsi_src_register *ind;
 741
 742          if( maxsize <= size )
 743             return 0;
 744          ind = (struct tgsi_src_register *) &tokens[size];
 745          size++;
 746
 747          *ind = tgsi_build_src_register(
 748             reg->SrcRegisterInd.File,
 749             reg->SrcRegisterInd.SwizzleX,
 750             reg->SrcRegisterInd.SwizzleY,
 751             reg->SrcRegisterInd.SwizzleZ,
 752             reg->SrcRegisterInd.SwizzleW,
 753             reg->SrcRegisterInd.Negate,
 754             reg->SrcRegisterInd.Indirect,
 755             reg->SrcRegisterInd.Dimension,
 756             reg->SrcRegisterInd.Index,
 757             instruction,
 758             header );
 759       }
 760
 761       if( reg->SrcRegister.Dimension ) {
 762          struct  tgsi_dimension *dim;
 763
 764          assert( !reg->SrcRegisterDim.Dimension );
 765
 766          if( maxsize <= size )
 767             return 0;
 768          dim = (struct tgsi_dimension *) &tokens[size];
 769          size++;
 770
 771          *dim = tgsi_build_dimension(
 772             reg->SrcRegisterDim.Indirect,
 773             reg->SrcRegisterDim.Index,
 774             instruction,
 775             header );
 776
 777          if( reg->SrcRegisterDim.Indirect ) {
 778             struct tgsi_src_register *ind;
 779
 780             if( maxsize <= size )
 781                return 0;
 782             ind = (struct tgsi_src_register *) &tokens[size];
 783             size++;
 784
 785             *ind = tgsi_build_src_register(
 786                reg->SrcRegisterDimInd.File,
 787                reg->SrcRegisterDimInd.SwizzleX,
 788                reg->SrcRegisterDimInd.SwizzleY,
 789                reg->SrcRegisterDimInd.SwizzleZ,
 790                reg->SrcRegisterDimInd.SwizzleW,
 791                reg->SrcRegisterDimInd.Negate,
 792                reg->SrcRegisterDimInd.Indirect,
 793                reg->SrcRegisterDimInd.Dimension,
 794                reg->SrcRegisterDimInd.Index,
 795                instruction,
 796                header );
 797          }
 798       }
 799    }
 800
 801    return size;
 802 }
 803
 804 struct tgsi_instruction_ext_nv
 805 tgsi_default_instruction_ext_nv( void )
 806 {
 807    struct tgsi_instruction_ext_nv instruction_ext_nv;
 808
 809    instruction_ext_nv.Type = TGSI_INSTRUCTION_EXT_TYPE_NV;
 810    instruction_ext_nv.Precision = TGSI_PRECISION_DEFAULT;
 811    instruction_ext_nv.CondDstIndex = 0;
 812    instruction_ext_nv.CondFlowIndex = 0;
 813    instruction_ext_nv.CondMask = TGSI_CC_TR;
 814    instruction_ext_nv.CondSwizzleX = TGSI_SWIZZLE_X;
 815    instruction_ext_nv.CondSwizzleY = TGSI_SWIZZLE_Y;
 816    instruction_ext_nv.CondSwizzleZ = TGSI_SWIZZLE_Z;
 817    instruction_ext_nv.CondSwizzleW = TGSI_SWIZZLE_W;
 818    instruction_ext_nv.CondDstUpdate = 0;
 819    instruction_ext_nv.CondFlowEnable = 0;
 820    instruction_ext_nv.Padding = 0;
 821    instruction_ext_nv.Extended = 0;
 822
 823    return instruction_ext_nv;
 824 }
 825
 826
 827 /** test for inequality of 32-bit values pointed to by a and b */
 828 static INLINE boolean
 829 compare32(const void *a, const void *b)
 830 {
 831    return *((uint32_t *) a) != *((uint32_t *) b);
 832 }
 833
 834
 835 unsigned
 836 tgsi_compare_instruction_ext_nv(
 837    struct tgsi_instruction_ext_nv a,
 838    struct tgsi_instruction_ext_nv b )
 839 {
 840    a.Padding = b.Padding = 0;
 841    a.Extended = b.Extended = 0;
 842    return compare32(&a, &b);
 843 }
 844
 845 struct tgsi_instruction_ext_nv
 846 tgsi_build_instruction_ext_nv(
 847    unsigned precision,
 848    unsigned cond_dst_index,
 849    unsigned cond_flow_index,
 850    unsigned cond_mask,
 851    unsigned cond_swizzle_x,
 852    unsigned cond_swizzle_y,
 853    unsigned cond_swizzle_z,
 854    unsigned cond_swizzle_w,
 855    unsigned cond_dst_update,
 856    unsigned cond_flow_enable,
 857    struct tgsi_token *prev_token,
 858    struct tgsi_instruction *instruction,
 859    struct tgsi_header *header )
 860 {
 861    struct tgsi_instruction_ext_nv instruction_ext_nv;
 862
 863    instruction_ext_nv = tgsi_default_instruction_ext_nv();
 864    instruction_ext_nv.Precision = precision;
 865    instruction_ext_nv.CondDstIndex = cond_dst_index;
 866    instruction_ext_nv.CondFlowIndex = cond_flow_index;
 867    instruction_ext_nv.CondMask = cond_mask;
 868    instruction_ext_nv.CondSwizzleX = cond_swizzle_x;
 869    instruction_ext_nv.CondSwizzleY = cond_swizzle_y;
 870    instruction_ext_nv.CondSwizzleZ = cond_swizzle_z;
 871    instruction_ext_nv.CondSwizzleW = cond_swizzle_w;
 872    instruction_ext_nv.CondDstUpdate = cond_dst_update;
 873    instruction_ext_nv.CondFlowEnable = cond_flow_enable;
 874
 875    prev_token->Extended = 1;
 876    instruction_grow( instruction, header );
 877
 878    return instruction_ext_nv;
 879 }
 880
 881 struct tgsi_instruction_ext_label
 882 tgsi_default_instruction_ext_label( void )
 883 {
 884    struct tgsi_instruction_ext_label instruction_ext_label;
 885
 886    instruction_ext_label.Type = TGSI_INSTRUCTION_EXT_TYPE_LABEL;
 887    instruction_ext_label.Label = 0;
 888    instruction_ext_label.Padding = 0;
 889    instruction_ext_label.Extended = 0;
 890
 891    return instruction_ext_label;
 892 }
 893
 894 unsigned
 895 tgsi_compare_instruction_ext_label(
 896    struct tgsi_instruction_ext_label a,
 897    struct tgsi_instruction_ext_label b )
 898 {
 899    a.Padding = b.Padding = 0;
 900    a.Extended = b.Extended = 0;
 901    return compare32(&a, &b);
 902 }
 903
 904 struct tgsi_instruction_ext_label
 905 tgsi_build_instruction_ext_label(
 906    unsigned label,
 907    struct tgsi_token  *prev_token,
 908    struct tgsi_instruction *instruction,
 909    struct tgsi_header *header )
 910 {
 911    struct tgsi_instruction_ext_label instruction_ext_label;
 912
 913    instruction_ext_label = tgsi_default_instruction_ext_label();
 914    instruction_ext_label.Label = label;
 915
 916    prev_token->Extended = 1;
 917    instruction_grow( instruction, header );
 918
 919    return instruction_ext_label;
 920 }
 921
 922 struct tgsi_instruction_ext_texture
 923 tgsi_default_instruction_ext_texture( void )
 924 {
 925    struct tgsi_instruction_ext_texture instruction_ext_texture;
 926
 927    instruction_ext_texture.Type = TGSI_INSTRUCTION_EXT_TYPE_TEXTURE;
 928    instruction_ext_texture.Texture = TGSI_TEXTURE_UNKNOWN;
 929    instruction_ext_texture.Padding = 0;
 930    instruction_ext_texture.Extended = 0;
 931
 932    return instruction_ext_texture;
 933 }
 934
 935 unsigned
 936 tgsi_compare_instruction_ext_texture(
 937    struct tgsi_instruction_ext_texture a,
 938    struct tgsi_instruction_ext_texture b )
 939 {
 940    a.Padding = b.Padding = 0;
 941    a.Extended = b.Extended = 0;
 942    return compare32(&a, &b);
 943 }
 944
 945 struct tgsi_instruction_ext_texture
 946 tgsi_build_instruction_ext_texture(
 947    unsigned texture,
 948    struct tgsi_token *prev_token,
 949    struct tgsi_instruction *instruction,
 950    struct tgsi_header *header )
 951 {
 952    struct tgsi_instruction_ext_texture instruction_ext_texture;
 953
 954    instruction_ext_texture = tgsi_default_instruction_ext_texture();
 955    instruction_ext_texture.Texture = texture;
 956
 957    prev_token->Extended = 1;
 958    instruction_grow( instruction, header );
 959
 960    return instruction_ext_texture;
 961 }
 962
 963 struct tgsi_src_register
 964 tgsi_default_src_register( void )
 965 {
 966    struct tgsi_src_register src_register;
 967
 968    src_register.File = TGSI_FILE_NULL;
 969    src_register.SwizzleX = TGSI_SWIZZLE_X;
 970    src_register.SwizzleY = TGSI_SWIZZLE_Y;
 971    src_register.SwizzleZ = TGSI_SWIZZLE_Z;
 972    src_register.SwizzleW = TGSI_SWIZZLE_W;
 973    src_register.Negate = 0;
 974    src_register.Indirect = 0;
 975    src_register.Dimension = 0;
 976    src_register.Index = 0;
 977    src_register.Extended = 0;
 978
 979    return src_register;
 980 }
 981
 982 struct tgsi_src_register
 983 tgsi_build_src_register(
 984    unsigned file,
 985    unsigned swizzle_x,
 986    unsigned swizzle_y,
 987    unsigned swizzle_z,
 988    unsigned swizzle_w,
 989    unsigned negate,
 990    unsigned indirect,
 991    unsigned dimension,
 992    int index,
 993    struct tgsi_instruction *instruction,
 994    struct tgsi_header *header )
 995 {
 996    struct tgsi_src_register   src_register;
 997
 998    assert( file < TGSI_FILE_COUNT );
 999    assert( swizzle_x <= TGSI_SWIZZLE_W );
1000    assert( swizzle_y <= TGSI_SWIZZLE_W );
1001    assert( swizzle_z <= TGSI_SWIZZLE_W );
1002    assert( swizzle_w <= TGSI_SWIZZLE_W );
1003    assert( negate <= 1 );
1004    assert( index >= -0x8000 && index <= 0x7FFF );
1005
1006    src_register = tgsi_default_src_register();
1007    src_register.File = file;
1008    src_register.SwizzleX = swizzle_x;
1009    src_register.SwizzleY = swizzle_y;
1010    src_register.SwizzleZ = swizzle_z;
1011    src_register.SwizzleW = swizzle_w;
1012    src_register.Negate = negate;
1013    src_register.Indirect = indirect;
1014    src_register.Dimension = dimension;
1015    src_register.Index = index;
1016
1017    instruction_grow( instruction, header );
1018
1019    return src_register;
1020 }
1021
1022 struct tgsi_full_src_register
1023 tgsi_default_full_src_register( void )
1024 {
1025    struct tgsi_full_src_register full_src_register;
1026
1027    full_src_register.SrcRegister = tgsi_default_src_register();
1028    full_src_register.SrcRegisterExtSwz = tgsi_default_src_register_ext_swz();
1029    full_src_register.SrcRegisterExtMod = tgsi_default_src_register_ext_mod();
1030    full_src_register.SrcRegisterInd = tgsi_default_src_register();
1031    full_src_register.SrcRegisterDim = tgsi_default_dimension();
1032    full_src_register.SrcRegisterDimInd = tgsi_default_src_register();
1033
1034    return full_src_register;
1035 }
1036
1037 struct tgsi_src_register_ext_swz
1038 tgsi_default_src_register_ext_swz( void )
1039 {
1040    struct tgsi_src_register_ext_swz src_register_ext_swz;
1041
1042    src_register_ext_swz.Type = TGSI_SRC_REGISTER_EXT_TYPE_SWZ;
1043    src_register_ext_swz.Padding0 = 0;
1044    src_register_ext_swz.NegateX = 0;
1045    src_register_ext_swz.NegateY = 0;
1046    src_register_ext_swz.NegateZ = 0;
1047    src_register_ext_swz.NegateW = 0;
1048    src_register_ext_swz.Padding = 0;
1049    src_register_ext_swz.Extended = 0;
1050
1051    return src_register_ext_swz;
1052 }
1053
1054 unsigned
1055 tgsi_compare_src_register_ext_swz(
1056    struct tgsi_src_register_ext_swz a,
1057    struct tgsi_src_register_ext_swz b )
1058 {
1059    a.Padding = b.Padding = 0;
1060    a.Extended = b.Extended = 0;
1061    return compare32(&a, &b);
1062 }
1063
1064 struct tgsi_src_register_ext_swz
1065 tgsi_build_src_register_ext_swz(
1066    unsigned negate_x,
1067    unsigned negate_y,
1068    unsigned negate_z,
1069    unsigned negate_w,
1070    struct tgsi_token *prev_token,
1071    struct tgsi_instruction *instruction,
1072    struct tgsi_header *header )
1073 {
1074    struct tgsi_src_register_ext_swz src_register_ext_swz;
1075
1076    assert( negate_x <= 1 );
1077    assert( negate_y <= 1 );
1078    assert( negate_z <= 1 );
1079    assert( negate_w <= 1 );
1080
1081    src_register_ext_swz = tgsi_default_src_register_ext_swz();
1082    src_register_ext_swz.NegateX = negate_x;
1083    src_register_ext_swz.NegateY = negate_y;
1084    src_register_ext_swz.NegateZ = negate_z;
1085    src_register_ext_swz.NegateW = negate_w;
1086
1087    prev_token->Extended = 1;
1088    instruction_grow( instruction, header );
1089
1090    return src_register_ext_swz;
1091 }
1092
1093 struct tgsi_src_register_ext_mod
1094 tgsi_default_src_register_ext_mod( void )
1095 {
1096    struct tgsi_src_register_ext_mod src_register_ext_mod;
1097
1098    src_register_ext_mod.Type = TGSI_SRC_REGISTER_EXT_TYPE_MOD;
1099    src_register_ext_mod.Complement = 0;
1100    src_register_ext_mod.Bias = 0;
1101    src_register_ext_mod.Scale2X = 0;
1102    src_register_ext_mod.Absolute = 0;
1103    src_register_ext_mod.Negate = 0;
1104    src_register_ext_mod.Padding = 0;
1105    src_register_ext_mod.Extended = 0;
1106
1107    return src_register_ext_mod;
1108 }
1109
1110 unsigned
1111 tgsi_compare_src_register_ext_mod(
1112    struct tgsi_src_register_ext_mod a,
1113    struct tgsi_src_register_ext_mod b )
1114 {
1115    a.Padding = b.Padding = 0;
1116    a.Extended = b.Extended = 0;
1117    return compare32(&a, &b);
1118 }
1119
1120 struct tgsi_src_register_ext_mod
1121 tgsi_build_src_register_ext_mod(
1122    unsigned complement,
1123    unsigned bias,
1124    unsigned scale_2x,
1125    unsigned absolute,
1126    unsigned negate,
1127    struct tgsi_token *prev_token,
1128    struct tgsi_instruction *instruction,
1129    struct tgsi_header *header )
1130 {
1131    struct tgsi_src_register_ext_mod src_register_ext_mod;
1132
1133    assert( complement <= 1 );
1134    assert( bias <= 1 );
1135    assert( scale_2x <= 1 );
1136    assert( absolute <= 1 );
1137    assert( negate <= 1 );
1138
1139    src_register_ext_mod = tgsi_default_src_register_ext_mod();
1140    src_register_ext_mod.Complement = complement;
1141    src_register_ext_mod.Bias = bias;
1142    src_register_ext_mod.Scale2X = scale_2x;
1143    src_register_ext_mod.Absolute = absolute;
1144    src_register_ext_mod.Negate = negate;
1145
1146    prev_token->Extended = 1;
1147    instruction_grow( instruction, header );
1148
1149    return src_register_ext_mod;
1150 }
1151
1152 struct tgsi_dimension
1153 tgsi_default_dimension( void )
1154 {
1155    struct tgsi_dimension dimension;
1156
1157    dimension.Indirect = 0;
1158    dimension.Dimension = 0;
1159    dimension.Padding = 0;
1160    dimension.Index = 0;
1161    dimension.Extended = 0;
1162
1163    return dimension;
1164 }
1165
1166 struct tgsi_dimension
1167 tgsi_build_dimension(
1168    unsigned indirect,
1169    unsigned index,
1170    struct tgsi_instruction *instruction,
1171    struct tgsi_header *header )
1172 {
1173    struct tgsi_dimension dimension;
1174
1175    dimension = tgsi_default_dimension();
1176    dimension.Indirect = indirect;
1177    dimension.Index = index;
1178
1179    instruction_grow( instruction, header );
1180
1181    return dimension;
1182 }
1183
1184 struct tgsi_dst_register
1185 tgsi_default_dst_register( void )
1186 {
1187    struct tgsi_dst_register dst_register;
1188
1189    dst_register.File = TGSI_FILE_NULL;
1190    dst_register.WriteMask = TGSI_WRITEMASK_XYZW;
1191    dst_register.Indirect = 0;
1192    dst_register.Dimension = 0;
1193    dst_register.Index = 0;
1194    dst_register.Padding = 0;
1195    dst_register.Extended = 0;
1196
1197    return dst_register;
1198 }
1199
1200 struct tgsi_dst_register
1201 tgsi_build_dst_register(
1202    unsigned file,
1203    unsigned mask,
1204    unsigned indirect,
1205    int index,
1206    struct tgsi_instruction *instruction,
1207    struct tgsi_header *header )
1208 {
1209    struct tgsi_dst_register dst_register;
1210
1211    assert( file < TGSI_FILE_COUNT );
1212    assert( mask <= TGSI_WRITEMASK_XYZW );
1213    assert( index >= -32768 && index <= 32767 );
1214
1215    dst_register = tgsi_default_dst_register();
1216    dst_register.File = file;
1217    dst_register.WriteMask = mask;
1218    dst_register.Index = index;
1219    dst_register.Indirect = indirect;
1220
1221    instruction_grow( instruction, header );
1222
1223    return dst_register;
1224 }
1225
1226 struct tgsi_full_dst_register
1227 tgsi_default_full_dst_register( void )
1228 {
1229    struct tgsi_full_dst_register full_dst_register;
1230
1231    full_dst_register.DstRegister = tgsi_default_dst_register();
1232    full_dst_register.DstRegisterInd = tgsi_default_src_register();
1233    full_dst_register.DstRegisterExtConcode =
1234       tgsi_default_dst_register_ext_concode();
1235    full_dst_register.DstRegisterExtModulate =
1236       tgsi_default_dst_register_ext_modulate();
1237
1238    return full_dst_register;
1239 }
1240
1241 struct tgsi_dst_register_ext_concode
1242 tgsi_default_dst_register_ext_concode( void )
1243 {
1244    struct tgsi_dst_register_ext_concode dst_register_ext_concode;
1245
1246    dst_register_ext_concode.Type = TGSI_DST_REGISTER_EXT_TYPE_CONDCODE;
1247    dst_register_ext_concode.CondMask = TGSI_CC_TR;
1248    dst_register_ext_concode.CondSwizzleX = TGSI_SWIZZLE_X;
1249    dst_register_ext_concode.CondSwizzleY = TGSI_SWIZZLE_Y;
1250    dst_register_ext_concode.CondSwizzleZ = TGSI_SWIZZLE_Z;
1251    dst_register_ext_concode.CondSwizzleW = TGSI_SWIZZLE_W;
1252    dst_register_ext_concode.CondSrcIndex = 0;
1253    dst_register_ext_concode.Padding = 0;
1254    dst_register_ext_concode.Extended = 0;
1255
1256    return dst_register_ext_concode;
1257 }
1258
1259 unsigned
1260 tgsi_compare_dst_register_ext_concode(
1261    struct tgsi_dst_register_ext_concode a,
1262    struct tgsi_dst_register_ext_concode b )
1263 {
1264    a.Padding = b.Padding = 0;
1265    a.Extended = b.Extended = 0;
1266    return compare32(&a, &b);
1267 }
1268
1269 struct tgsi_dst_register_ext_concode
1270 tgsi_build_dst_register_ext_concode(
1271    unsigned cc,
1272    unsigned swizzle_x,
1273    unsigned swizzle_y,
1274    unsigned swizzle_z,
1275    unsigned swizzle_w,
1276    int index,
1277    struct tgsi_token *prev_token,
1278    struct tgsi_instruction *instruction,
1279    struct tgsi_header *header )
1280 {
1281    struct tgsi_dst_register_ext_concode dst_register_ext_concode;
1282
1283    assert( cc <= TGSI_CC_FL );
1284    assert( swizzle_x <= TGSI_SWIZZLE_W );
1285    assert( swizzle_y <= TGSI_SWIZZLE_W );
1286    assert( swizzle_z <= TGSI_SWIZZLE_W );
1287    assert( swizzle_w <= TGSI_SWIZZLE_W );
1288    assert( index >= -32768 && index <= 32767 );
1289
1290    dst_register_ext_concode = tgsi_default_dst_register_ext_concode();
1291    dst_register_ext_concode.CondMask = cc;
1292    dst_register_ext_concode.CondSwizzleX = swizzle_x;
1293    dst_register_ext_concode.CondSwizzleY = swizzle_y;
1294    dst_register_ext_concode.CondSwizzleZ = swizzle_z;
1295    dst_register_ext_concode.CondSwizzleW = swizzle_w;
1296    dst_register_ext_concode.CondSrcIndex = index;
1297
1298    prev_token->Extended = 1;
1299    instruction_grow( instruction, header );
1300
1301    return dst_register_ext_concode;
1302 }
1303
1304 struct tgsi_dst_register_ext_modulate
1305 tgsi_default_dst_register_ext_modulate( void )
1306 {
1307    struct tgsi_dst_register_ext_modulate dst_register_ext_modulate;
1308
1309    dst_register_ext_modulate.Type = TGSI_DST_REGISTER_EXT_TYPE_MODULATE;
1310    dst_register_ext_modulate.Modulate = TGSI_MODULATE_1X;
1311    dst_register_ext_modulate.Padding = 0;
1312    dst_register_ext_modulate.Extended = 0;
1313
1314    return dst_register_ext_modulate;
1315 }
1316
1317 unsigned
1318 tgsi_compare_dst_register_ext_modulate(
1319    struct tgsi_dst_register_ext_modulate a,
1320    struct tgsi_dst_register_ext_modulate b )
1321 {
1322    a.Padding = b.Padding = 0;
1323    a.Extended = b.Extended = 0;
1324    return compare32(&a, &b);
1325 }
1326
1327 struct tgsi_dst_register_ext_modulate
1328 tgsi_build_dst_register_ext_modulate(
1329    unsigned modulate,
1330    struct tgsi_token *prev_token,
1331    struct tgsi_instruction *instruction,
1332    struct tgsi_header *header )
1333 {
1334    struct tgsi_dst_register_ext_modulate dst_register_ext_modulate;
1335
1336    assert( modulate <= TGSI_MODULATE_EIGHTH );
1337
1338    dst_register_ext_modulate = tgsi_default_dst_register_ext_modulate();
1339    dst_register_ext_modulate.Modulate = modulate;
1340
1341    prev_token->Extended = 1;
1342    instruction_grow( instruction, header );
1343
1344    return dst_register_ext_modulate;
1345 }