src/gallium/auxiliary/tgsi/tgsi_build.c

   1 /**************************************************************************
   2  *
   3  * Copyright 2007 VMware, Inc.
   4  * All Rights Reserved.
   5  *
   6  * Permission is hereby granted, free of charge, to any person obtaining a
   7  * copy of this software and associated documentation files (the
   8  * "Software"), to deal in the Software without restriction, including
   9  * without limitation the rights to use, copy, modify, merge, publish,
  10  * distribute, sub license, and/or sell copies of the Software, and to
  11  * permit persons to whom the Software is furnished to do so, subject to
  12  * the following conditions:
  13  *
  14  * The above copyright notice and this permission notice (including the
  15  * next paragraph) shall be included in all copies or substantial portions
  16  * of the Software.
  17  *
  18  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
  19  * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  20  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
  21  * IN NO EVENT SHALL VMWARE AND/OR ITS SUPPLIERS BE LIABLE FOR
  22  * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
  23  * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
  24  * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  25  *
  26  **************************************************************************/
  27
  28 #include "util/u_debug.h"
  29 #include "pipe/p_format.h"
  30 #include "pipe/p_shader_tokens.h"
  31 #include "tgsi_build.h"
  32 #include "tgsi_parse.h"
  33
  34
  35 /*
  36  * header
  37  */
  38
  39 struct tgsi_header
  40 tgsi_build_header( void )
  41 {
  42    struct tgsi_header header;
  43
  44    header.HeaderSize = 1;
  45    header.BodySize = 0;
  46
  47    return header;
  48 }
  49
  50 static void
  51 header_headersize_grow( struct tgsi_header *header )
  52 {
  53    assert( header->HeaderSize < 0xFF );
  54    assert( header->BodySize == 0 );
  55
  56    header->HeaderSize++;
  57 }
  58
  59 static void
  60 header_bodysize_grow( struct tgsi_header *header )
  61 {
  62    assert( header->BodySize < 0xFFFFFF );
  63
  64    header->BodySize++;
  65 }
  66
  67 struct tgsi_processor
  68 tgsi_build_processor(
  69    unsigned type,
  70    struct tgsi_header *header )
  71 {
  72    struct tgsi_processor processor;
  73
  74    processor.Processor = type;
  75    processor.Padding = 0;
  76
  77    header_headersize_grow( header );
  78
  79    return processor;
  80 }
  81
  82 /*
  83  * declaration
  84  */
  85
  86 static void
  87 declaration_grow(
  88    struct tgsi_declaration *declaration,
  89    struct tgsi_header *header )
  90 {
  91    assert( declaration->NrTokens < 0xFF );
  92
  93    declaration->NrTokens++;
  94
  95    header_bodysize_grow( header );
  96 }
  97
  98 static struct tgsi_declaration
  99 tgsi_default_declaration( void )
 100 {
 101    struct tgsi_declaration declaration;
 102
 103    declaration.Type = TGSI_TOKEN_TYPE_DECLARATION;
 104    declaration.NrTokens = 1;
 105    declaration.File = TGSI_FILE_NULL;
 106    declaration.UsageMask = TGSI_WRITEMASK_XYZW;
 107    declaration.Interpolate = 0;
 108    declaration.Dimension = 0;
 109    declaration.Semantic = 0;
 110    declaration.Invariant = 0;
 111    declaration.Local = 0;
 112    declaration.Array = 0;
 113    declaration.Atomic = 0;
 114    declaration.MemType = TGSI_MEMORY_TYPE_GLOBAL;
 115    declaration.Padding = 0;
 116
 117    return declaration;
 118 }
 119
 120 static struct tgsi_declaration
 121 tgsi_build_declaration(
 122    unsigned file,
 123    unsigned usage_mask,
 124    unsigned interpolate,
 125    unsigned dimension,
 126    unsigned semantic,
 127    unsigned invariant,
 128    unsigned local,
 129    unsigned array,
 130    unsigned atomic,
 131    unsigned mem_type,
 132    struct tgsi_header *header )
 133 {
 134    struct tgsi_declaration declaration;
 135
 136    assert( file < TGSI_FILE_COUNT );
 137    assert( interpolate < TGSI_INTERPOLATE_COUNT );
 138
 139    declaration = tgsi_default_declaration();
 140    declaration.File = file;
 141    declaration.UsageMask = usage_mask;
 142    declaration.Interpolate = interpolate;
 143    declaration.Dimension = dimension;
 144    declaration.Semantic = semantic;
 145    declaration.Invariant = invariant;
 146    declaration.Local = local;
 147    declaration.Array = array;
 148    declaration.Atomic = atomic;
 149    declaration.MemType = mem_type;
 150    header_bodysize_grow( header );
 151
 152    return declaration;
 153 }
 154
 155 static struct tgsi_declaration_range
 156 tgsi_default_declaration_range( void )
 157 {
 158    struct tgsi_declaration_range dr;
 159
 160    dr.First = 0;
 161    dr.Last = 0;
 162
 163    return dr;
 164 }
 165
 166 static struct tgsi_declaration_dimension
 167 tgsi_default_declaration_dimension()
 168 {
 169    struct tgsi_declaration_dimension dim;
 170
 171    dim.Index2D = 0;
 172
 173    return dim;
 174 }
 175
 176 static struct tgsi_declaration_range
 177 tgsi_build_declaration_range(
 178    unsigned first,
 179    unsigned last,
 180    struct tgsi_declaration *declaration,
 181    struct tgsi_header *header )
 182 {
 183    struct tgsi_declaration_range declaration_range;
 184
 185    assert( last >= first );
 186    assert( last <= 0xFFFF );
 187
 188    declaration_range.First = first;
 189    declaration_range.Last = last;
 190
 191    declaration_grow( declaration, header );
 192
 193    return declaration_range;
 194 }
 195
 196 static struct tgsi_declaration_dimension
 197 tgsi_build_declaration_dimension(unsigned index_2d,
 198                                  struct tgsi_declaration *declaration,
 199                                  struct tgsi_header *header)
 200 {
 201    struct tgsi_declaration_dimension dd;
 202
 203    assert(index_2d <= 0xFFFF);
 204
 205    dd.Index2D = index_2d;
 206    dd.Padding = 0;
 207
 208    declaration_grow(declaration, header);
 209
 210    return dd;
 211 }
 212
 213 static struct tgsi_declaration_interp
 214 tgsi_default_declaration_interp( void )
 215 {
 216    struct tgsi_declaration_interp di;
 217
 218    di.Interpolate = TGSI_INTERPOLATE_CONSTANT;
 219    di.Location = TGSI_INTERPOLATE_LOC_CENTER;
 220    di.CylindricalWrap = 0;
 221    di.Padding = 0;
 222
 223    return di;
 224 }
 225
 226 static struct tgsi_declaration_interp
 227 tgsi_build_declaration_interp(unsigned interpolate,
 228                               unsigned interpolate_location,
 229                               unsigned cylindrical_wrap,
 230                               struct tgsi_declaration *declaration,
 231                               struct tgsi_header *header)
 232 {
 233    struct tgsi_declaration_interp di;
 234
 235    di.Interpolate = interpolate;
 236    di.Location = interpolate_location;
 237    di.CylindricalWrap = cylindrical_wrap;
 238    di.Padding = 0;
 239
 240    declaration_grow(declaration, header);
 241
 242    return di;
 243 }
 244
 245 static struct tgsi_declaration_semantic
 246 tgsi_default_declaration_semantic( void )
 247 {
 248    struct tgsi_declaration_semantic ds;
 249
 250    ds.Name = TGSI_SEMANTIC_POSITION;
 251    ds.Index = 0;
 252    ds.StreamX = 0;
 253    ds.StreamY = 0;
 254    ds.StreamZ = 0;
 255    ds.StreamW = 0;
 256
 257    return ds;
 258 }
 259
 260 static struct tgsi_declaration_semantic
 261 tgsi_build_declaration_semantic(
 262    unsigned semantic_name,
 263    unsigned semantic_index,
 264    unsigned streamx,
 265    unsigned streamy,
 266    unsigned streamz,
 267    unsigned streamw,
 268    struct tgsi_declaration *declaration,
 269    struct tgsi_header *header )
 270 {
 271    struct tgsi_declaration_semantic ds;
 272
 273    assert( semantic_name <= TGSI_SEMANTIC_COUNT );
 274    assert( semantic_index <= 0xFFFF );
 275
 276    ds.Name = semantic_name;
 277    ds.Index = semantic_index;
 278    ds.StreamX = streamx;
 279    ds.StreamY = streamy;
 280    ds.StreamZ = streamz;
 281    ds.StreamW = streamw;
 282
 283    declaration_grow( declaration, header );
 284
 285    return ds;
 286 }
 287
 288 static struct tgsi_declaration_image
 289 tgsi_default_declaration_image(void)
 290 {
 291    struct tgsi_declaration_image di;
 292
 293    di.Resource = TGSI_TEXTURE_BUFFER;
 294    di.Raw = 0;
 295    di.Writable = 0;
 296    di.Format = 0;
 297    di.Padding = 0;
 298
 299    return di;
 300 }
 301
 302 static struct tgsi_declaration_image
 303 tgsi_build_declaration_image(unsigned texture,
 304                              unsigned format,
 305                              unsigned raw,
 306                              unsigned writable,
 307                              struct tgsi_declaration *declaration,
 308                              struct tgsi_header *header)
 309 {
 310    struct tgsi_declaration_image di;
 311
 312    di = tgsi_default_declaration_image();
 313    di.Resource = texture;
 314    di.Format = format;
 315    di.Raw = raw;
 316    di.Writable = writable;
 317
 318    declaration_grow(declaration, header);
 319
 320    return di;
 321 }
 322
 323 static struct tgsi_declaration_sampler_view
 324 tgsi_default_declaration_sampler_view(void)
 325 {
 326    struct tgsi_declaration_sampler_view dsv;
 327
 328    dsv.Resource = TGSI_TEXTURE_BUFFER;
 329    dsv.ReturnTypeX = TGSI_RETURN_TYPE_UNORM;
 330    dsv.ReturnTypeY = TGSI_RETURN_TYPE_UNORM;
 331    dsv.ReturnTypeZ = TGSI_RETURN_TYPE_UNORM;
 332    dsv.ReturnTypeW = TGSI_RETURN_TYPE_UNORM;
 333
 334    return dsv;
 335 }
 336
 337 static struct tgsi_declaration_sampler_view
 338 tgsi_build_declaration_sampler_view(unsigned texture,
 339                                     unsigned return_type_x,
 340                                     unsigned return_type_y,
 341                                     unsigned return_type_z,
 342                                     unsigned return_type_w,
 343                                     struct tgsi_declaration *declaration,
 344                                     struct tgsi_header *header)
 345 {
 346    struct tgsi_declaration_sampler_view dsv;
 347
 348    dsv = tgsi_default_declaration_sampler_view();
 349    dsv.Resource = texture;
 350    dsv.ReturnTypeX = return_type_x;
 351    dsv.ReturnTypeY = return_type_y;
 352    dsv.ReturnTypeZ = return_type_z;
 353    dsv.ReturnTypeW = return_type_w;
 354
 355    declaration_grow(declaration, header);
 356
 357    return dsv;
 358 }
 359
 360
 361 static struct tgsi_declaration_array
 362 tgsi_default_declaration_array( void )
 363 {
 364    struct tgsi_declaration_array a;
 365
 366    a.ArrayID = 0;
 367    a.Padding = 0;
 368
 369    return a;
 370 }
 371
 372 static struct tgsi_declaration_array
 373 tgsi_build_declaration_array(unsigned arrayid,
 374                              struct tgsi_declaration *declaration,
 375                              struct tgsi_header *header)
 376 {
 377    struct tgsi_declaration_array da;
 378
 379    da = tgsi_default_declaration_array();
 380    da.ArrayID = arrayid;
 381
 382    declaration_grow(declaration, header);
 383
 384    return da;
 385 }
 386
 387 struct tgsi_full_declaration
 388 tgsi_default_full_declaration( void )
 389 {
 390    struct tgsi_full_declaration  full_declaration;
 391
 392    full_declaration.Declaration  = tgsi_default_declaration();
 393    full_declaration.Range = tgsi_default_declaration_range();
 394    full_declaration.Dim = tgsi_default_declaration_dimension();
 395    full_declaration.Semantic = tgsi_default_declaration_semantic();
 396    full_declaration.Interp = tgsi_default_declaration_interp();
 397    full_declaration.Image = tgsi_default_declaration_image();
 398    full_declaration.SamplerView = tgsi_default_declaration_sampler_view();
 399    full_declaration.Array = tgsi_default_declaration_array();
 400
 401    return full_declaration;
 402 }
 403
 404 unsigned
 405 tgsi_build_full_declaration(
 406    const struct tgsi_full_declaration *full_decl,
 407    struct tgsi_token *tokens,
 408    struct tgsi_header *header,
 409    unsigned maxsize )
 410 {
 411    unsigned size = 0;
 412    struct tgsi_declaration *declaration;
 413    struct tgsi_declaration_range *dr;
 414
 415    if( maxsize <= size )
 416       return 0;
 417    declaration = (struct tgsi_declaration *) &tokens[size];
 418    size++;
 419
 420    *declaration = tgsi_build_declaration(
 421       full_decl->Declaration.File,
 422       full_decl->Declaration.UsageMask,
 423       full_decl->Declaration.Interpolate,
 424       full_decl->Declaration.Dimension,
 425       full_decl->Declaration.Semantic,
 426       full_decl->Declaration.Invariant,
 427       full_decl->Declaration.Local,
 428       full_decl->Declaration.Array,
 429       full_decl->Declaration.Atomic,
 430       full_decl->Declaration.MemType,
 431       header );
 432
 433    if (maxsize <= size)
 434       return 0;
 435    dr = (struct tgsi_declaration_range *) &tokens[size];
 436    size++;
 437
 438    *dr = tgsi_build_declaration_range(
 439       full_decl->Range.First,
 440       full_decl->Range.Last,
 441       declaration,
 442       header );
 443
 444    if (full_decl->Declaration.Dimension) {
 445       struct tgsi_declaration_dimension *dd;
 446
 447       if (maxsize <= size) {
 448          return 0;
 449       }
 450       dd = (struct tgsi_declaration_dimension *)&tokens[size];
 451       size++;
 452
 453       *dd = tgsi_build_declaration_dimension(full_decl->Dim.Index2D,
 454                                              declaration,
 455                                              header);
 456    }
 457
 458    if (full_decl->Declaration.Interpolate) {
 459       struct tgsi_declaration_interp *di;
 460
 461       if (maxsize <= size) {
 462          return 0;
 463       }
 464       di = (struct tgsi_declaration_interp *)&tokens[size];
 465       size++;
 466
 467       *di = tgsi_build_declaration_interp(full_decl->Interp.Interpolate,
 468                                           full_decl->Interp.Location,
 469                                           full_decl->Interp.CylindricalWrap,
 470                                           declaration,
 471                                           header);
 472    }
 473
 474    if( full_decl->Declaration.Semantic ) {
 475       struct tgsi_declaration_semantic *ds;
 476
 477       if( maxsize <= size )
 478          return  0;
 479       ds = (struct tgsi_declaration_semantic *) &tokens[size];
 480       size++;
 481
 482       *ds = tgsi_build_declaration_semantic(
 483          full_decl->Semantic.Name,
 484          full_decl->Semantic.Index,
 485          full_decl->Semantic.StreamX,
 486          full_decl->Semantic.StreamY,
 487          full_decl->Semantic.StreamZ,
 488          full_decl->Semantic.StreamW,
 489          declaration,
 490          header );
 491    }
 492
 493    if (full_decl->Declaration.File == TGSI_FILE_IMAGE) {
 494       struct tgsi_declaration_image *di;
 495
 496       if (maxsize <= size) {
 497          return  0;
 498       }
 499       di = (struct tgsi_declaration_image *)&tokens[size];
 500       size++;
 501
 502       *di = tgsi_build_declaration_image(full_decl->Image.Resource,
 503                                          full_decl->Image.Format,
 504                                          full_decl->Image.Raw,
 505                                          full_decl->Image.Writable,
 506                                          declaration,
 507                                          header);
 508    }
 509
 510    if (full_decl->Declaration.File == TGSI_FILE_SAMPLER_VIEW) {
 511       struct tgsi_declaration_sampler_view *dsv;
 512
 513       if (maxsize <= size) {
 514          return  0;
 515       }
 516       dsv = (struct tgsi_declaration_sampler_view *)&tokens[size];
 517       size++;
 518
 519       *dsv = tgsi_build_declaration_sampler_view(
 520          full_decl->SamplerView.Resource,
 521          full_decl->SamplerView.ReturnTypeX,
 522          full_decl->SamplerView.ReturnTypeY,
 523          full_decl->SamplerView.ReturnTypeZ,
 524          full_decl->SamplerView.ReturnTypeW,
 525          declaration,
 526          header);
 527    }
 528
 529    if (full_decl->Declaration.Array) {
 530       struct tgsi_declaration_array *da;
 531
 532       if (maxsize <= size) {
 533          return 0;
 534       }
 535       da = (struct tgsi_declaration_array *)&tokens[size];
 536       size++;
 537       *da = tgsi_build_declaration_array(
 538          full_decl->Array.ArrayID,
 539          declaration,
 540          header);
 541    }
 542    return size;
 543 }
 544
 545 /*
 546  * immediate
 547  */
 548
 549 static struct tgsi_immediate
 550 tgsi_default_immediate( void )
 551 {
 552    struct tgsi_immediate immediate;
 553
 554    immediate.Type = TGSI_TOKEN_TYPE_IMMEDIATE;
 555    immediate.NrTokens = 1;
 556    immediate.DataType = TGSI_IMM_FLOAT32;
 557    immediate.Padding = 0;
 558
 559    return immediate;
 560 }
 561
 562 static struct tgsi_immediate
 563 tgsi_build_immediate(
 564    struct tgsi_header *header,
 565    unsigned type )
 566 {
 567    struct tgsi_immediate immediate;
 568
 569    immediate = tgsi_default_immediate();
 570    immediate.DataType = type;
 571
 572    header_bodysize_grow( header );
 573
 574    return immediate;
 575 }
 576
 577 struct tgsi_full_immediate
 578 tgsi_default_full_immediate( void )
 579 {
 580    struct tgsi_full_immediate fullimm;
 581
 582    fullimm.Immediate = tgsi_default_immediate();
 583    fullimm.u[0].Float = 0.0f;
 584    fullimm.u[1].Float = 0.0f;
 585    fullimm.u[2].Float = 0.0f;
 586    fullimm.u[3].Float = 0.0f;
 587
 588    return fullimm;
 589 }
 590
 591 static void
 592 immediate_grow(
 593    struct tgsi_immediate *immediate,
 594    struct tgsi_header *header )
 595 {
 596    assert( immediate->NrTokens < 0xFF );
 597
 598    immediate->NrTokens++;
 599
 600    header_bodysize_grow( header );
 601 }
 602
 603 unsigned
 604 tgsi_build_full_immediate(
 605    const struct tgsi_full_immediate *full_imm,
 606    struct tgsi_token *tokens,
 607    struct tgsi_header *header,
 608    unsigned maxsize )
 609 {
 610    unsigned size = 0, i;
 611    struct tgsi_immediate *immediate;
 612
 613    if( maxsize <= size )
 614       return 0;
 615    immediate = (struct tgsi_immediate *) &tokens[size];
 616    size++;
 617
 618    *immediate = tgsi_build_immediate( header, full_imm->Immediate.DataType );
 619
 620    assert( full_imm->Immediate.NrTokens <= 4 + 1 );
 621
 622    for( i = 0; i < full_imm->Immediate.NrTokens - 1; i++ ) {
 623       union tgsi_immediate_data *data;
 624
 625       if( maxsize <= size )
 626          return  0;
 627
 628       data = (union tgsi_immediate_data *) &tokens[size];
 629       *data = full_imm->u[i];
 630
 631       immediate_grow( immediate, header );
 632       size++;
 633    }
 634
 635    return size;
 636 }
 637
 638 /*
 639  * instruction
 640  */
 641
 642 struct tgsi_instruction
 643 tgsi_default_instruction( void )
 644 {
 645    struct tgsi_instruction instruction;
 646
 647    instruction.Type = TGSI_TOKEN_TYPE_INSTRUCTION;
 648    instruction.NrTokens = 0;
 649    instruction.Opcode = TGSI_OPCODE_MOV;
 650    instruction.Saturate = 0;
 651    instruction.NumDstRegs = 1;
 652    instruction.NumSrcRegs = 1;
 653    instruction.Label = 0;
 654    instruction.Texture = 0;
 655    instruction.Memory = 0;
 656    instruction.Precise = 0;
 657    instruction.Padding = 0;
 658
 659    return instruction;
 660 }
 661
 662 static struct tgsi_instruction
 663 tgsi_build_instruction(enum tgsi_opcode opcode,
 664                        unsigned saturate,
 665                        unsigned precise,
 666                        unsigned num_dst_regs,
 667                        unsigned num_src_regs,
 668                        struct tgsi_header *header)
 669 {
 670    struct tgsi_instruction instruction;
 671
 672    assert (opcode <= TGSI_OPCODE_LAST);
 673    assert (saturate <= 1);
 674    assert (num_dst_regs <= 3);
 675    assert (num_src_regs <= 15);
 676
 677    instruction = tgsi_default_instruction();
 678    instruction.Opcode = opcode;
 679    instruction.Saturate = saturate;
 680    instruction.Precise = precise;
 681    instruction.NumDstRegs = num_dst_regs;
 682    instruction.NumSrcRegs = num_src_regs;
 683
 684    header_bodysize_grow( header );
 685
 686    return instruction;
 687 }
 688
 689 static void
 690 instruction_grow(
 691    struct tgsi_instruction *instruction,
 692    struct tgsi_header *header )
 693 {
 694    assert (instruction->NrTokens <   0xFF);
 695
 696    instruction->NrTokens++;
 697
 698    header_bodysize_grow( header );
 699 }
 700
 701 static struct tgsi_instruction_label
 702 tgsi_default_instruction_label( void )
 703 {
 704    struct tgsi_instruction_label instruction_label;
 705
 706    instruction_label.Label = 0;
 707    instruction_label.Padding = 0;
 708
 709    return instruction_label;
 710 }
 711
 712 static struct tgsi_instruction_label
 713 tgsi_build_instruction_label(
 714    unsigned label,
 715    struct tgsi_instruction *instruction,
 716    struct tgsi_header *header )
 717 {
 718    struct tgsi_instruction_label instruction_label;
 719
 720    instruction_label.Label = label;
 721    instruction_label.Padding = 0;
 722    instruction->Label = 1;
 723
 724    instruction_grow( instruction, header );
 725
 726    return instruction_label;
 727 }
 728
 729 static struct tgsi_instruction_texture
 730 tgsi_default_instruction_texture( void )
 731 {
 732    struct tgsi_instruction_texture instruction_texture;
 733
 734    instruction_texture.Texture = TGSI_TEXTURE_UNKNOWN;
 735    instruction_texture.NumOffsets = 0;
 736    instruction_texture.ReturnType = TGSI_RETURN_TYPE_UNKNOWN;
 737    instruction_texture.Padding = 0;
 738
 739    return instruction_texture;
 740 }
 741
 742 static struct tgsi_instruction_texture
 743 tgsi_build_instruction_texture(
 744    unsigned texture,
 745    unsigned num_offsets,
 746    unsigned return_type,
 747    struct tgsi_instruction *instruction,
 748    struct tgsi_header *header )
 749 {
 750    struct tgsi_instruction_texture instruction_texture;
 751
 752    instruction_texture.Texture = texture;
 753    instruction_texture.NumOffsets = num_offsets;
 754    instruction_texture.ReturnType = return_type;
 755    instruction_texture.Padding = 0;
 756    instruction->Texture = 1;
 757
 758    instruction_grow( instruction, header );
 759
 760    return instruction_texture;
 761 }
 762
 763 static struct tgsi_instruction_memory
 764 tgsi_default_instruction_memory( void )
 765 {
 766    struct tgsi_instruction_memory instruction_memory;
 767
 768    instruction_memory.Qualifier = 0;
 769    instruction_memory.Texture = 0;
 770    instruction_memory.Format = 0;
 771    instruction_memory.Padding = 0;
 772
 773    return instruction_memory;
 774 }
 775
 776 static struct tgsi_instruction_memory
 777 tgsi_build_instruction_memory(
 778    unsigned qualifier,
 779    unsigned texture,
 780    unsigned format,
 781    struct tgsi_instruction *instruction,
 782    struct tgsi_header *header )
 783 {
 784    struct tgsi_instruction_memory instruction_memory;
 785
 786    instruction_memory.Qualifier = qualifier;
 787    instruction_memory.Texture = texture;
 788    instruction_memory.Format = format;
 789    instruction_memory.Padding = 0;
 790    instruction->Memory = 1;
 791
 792    instruction_grow( instruction, header );
 793
 794    return instruction_memory;
 795 }
 796
 797 static struct tgsi_texture_offset
 798 tgsi_default_texture_offset( void )
 799 {
 800    struct tgsi_texture_offset texture_offset;
 801
 802    texture_offset.Index = 0;
 803    texture_offset.File = 0;
 804    texture_offset.SwizzleX = 0;
 805    texture_offset.SwizzleY = 0;
 806    texture_offset.SwizzleZ = 0;
 807    texture_offset.Padding = 0;
 808
 809    return texture_offset;
 810 }
 811
 812 static struct tgsi_texture_offset
 813 tgsi_build_texture_offset(
 814    int index, int file, int swizzle_x, int swizzle_y, int swizzle_z,
 815    struct tgsi_instruction *instruction,
 816    struct tgsi_header *header )
 817 {
 818    struct tgsi_texture_offset texture_offset;
 819
 820    texture_offset.Index = index;
 821    texture_offset.File = file;
 822    texture_offset.SwizzleX = swizzle_x;
 823    texture_offset.SwizzleY = swizzle_y;
 824    texture_offset.SwizzleZ = swizzle_z;
 825    texture_offset.Padding = 0;
 826
 827    instruction_grow( instruction, header );
 828
 829    return texture_offset;
 830 }
 831
 832 static struct tgsi_src_register
 833 tgsi_default_src_register( void )
 834 {
 835    struct tgsi_src_register src_register;
 836
 837    src_register.File = TGSI_FILE_NULL;
 838    src_register.SwizzleX = TGSI_SWIZZLE_X;
 839    src_register.SwizzleY = TGSI_SWIZZLE_Y;
 840    src_register.SwizzleZ = TGSI_SWIZZLE_Z;
 841    src_register.SwizzleW = TGSI_SWIZZLE_W;
 842    src_register.Negate = 0;
 843    src_register.Absolute = 0;
 844    src_register.Indirect = 0;
 845    src_register.Dimension = 0;
 846    src_register.Index = 0;
 847
 848    return src_register;
 849 }
 850
 851 static struct tgsi_src_register
 852 tgsi_build_src_register(
 853    unsigned file,
 854    unsigned swizzle_x,
 855    unsigned swizzle_y,
 856    unsigned swizzle_z,
 857    unsigned swizzle_w,
 858    unsigned negate,
 859    unsigned absolute,
 860    unsigned indirect,
 861    unsigned dimension,
 862    int index,
 863    struct tgsi_instruction *instruction,
 864    struct tgsi_header *header )
 865 {
 866    struct tgsi_src_register   src_register;
 867
 868    assert( file < TGSI_FILE_COUNT );
 869    assert( swizzle_x <= TGSI_SWIZZLE_W );
 870    assert( swizzle_y <= TGSI_SWIZZLE_W );
 871    assert( swizzle_z <= TGSI_SWIZZLE_W );
 872    assert( swizzle_w <= TGSI_SWIZZLE_W );
 873    assert( negate <= 1 );
 874    assert( index >= -0x8000 && index <= 0x7FFF );
 875
 876    src_register.File = file;
 877    src_register.SwizzleX = swizzle_x;
 878    src_register.SwizzleY = swizzle_y;
 879    src_register.SwizzleZ = swizzle_z;
 880    src_register.SwizzleW = swizzle_w;
 881    src_register.Negate = negate;
 882    src_register.Absolute = absolute;
 883    src_register.Indirect = indirect;
 884    src_register.Dimension = dimension;
 885    src_register.Index = index;
 886
 887    instruction_grow( instruction, header );
 888
 889    return src_register;
 890 }
 891
 892 static struct tgsi_ind_register
 893 tgsi_default_ind_register( void )
 894 {
 895    struct tgsi_ind_register ind_register;
 896
 897    ind_register.File = TGSI_FILE_NULL;
 898    ind_register.Index = 0;
 899    ind_register.Swizzle = TGSI_SWIZZLE_X;
 900    ind_register.ArrayID = 0;
 901
 902    return ind_register;
 903 }
 904
 905 static struct tgsi_ind_register
 906 tgsi_build_ind_register(
 907    unsigned file,
 908    unsigned swizzle,
 909    int index,
 910    unsigned arrayid,
 911    struct tgsi_instruction *instruction,
 912    struct tgsi_header *header )
 913 {
 914    struct tgsi_ind_register   ind_register;
 915
 916    assert( file < TGSI_FILE_COUNT );
 917    assert( swizzle <= TGSI_SWIZZLE_W );
 918    assert( index >= -0x8000 && index <= 0x7FFF );
 919
 920    ind_register.File = file;
 921    ind_register.Swizzle = swizzle;
 922    ind_register.Index = index;
 923    ind_register.ArrayID = arrayid;
 924
 925    instruction_grow( instruction, header );
 926
 927    return ind_register;
 928 }
 929
 930 static struct tgsi_dimension
 931 tgsi_default_dimension( void )
 932 {
 933    struct tgsi_dimension dimension;
 934
 935    dimension.Indirect = 0;
 936    dimension.Dimension = 0;
 937    dimension.Padding = 0;
 938    dimension.Index = 0;
 939
 940    return dimension;
 941 }
 942
 943 static struct tgsi_full_src_register
 944 tgsi_default_full_src_register( void )
 945 {
 946    struct tgsi_full_src_register full_src_register;
 947
 948    full_src_register.Register = tgsi_default_src_register();
 949    full_src_register.Indirect = tgsi_default_ind_register();
 950    full_src_register.Dimension = tgsi_default_dimension();
 951    full_src_register.DimIndirect = tgsi_default_ind_register();
 952
 953    return full_src_register;
 954 }
 955
 956 static struct tgsi_dimension
 957 tgsi_build_dimension(
 958    unsigned indirect,
 959    unsigned index,
 960    struct tgsi_instruction *instruction,
 961    struct tgsi_header *header )
 962 {
 963    struct tgsi_dimension dimension;
 964
 965    dimension.Indirect = indirect;
 966    dimension.Dimension = 0;
 967    dimension.Padding = 0;
 968    dimension.Index = index;
 969
 970    instruction_grow( instruction, header );
 971
 972    return dimension;
 973 }
 974
 975 static struct tgsi_dst_register
 976 tgsi_default_dst_register( void )
 977 {
 978    struct tgsi_dst_register dst_register;
 979
 980    dst_register.File = TGSI_FILE_NULL;
 981    dst_register.WriteMask = TGSI_WRITEMASK_XYZW;
 982    dst_register.Indirect = 0;
 983    dst_register.Dimension = 0;
 984    dst_register.Index = 0;
 985    dst_register.Padding = 0;
 986
 987    return dst_register;
 988 }
 989
 990 static struct tgsi_dst_register
 991 tgsi_build_dst_register(
 992    unsigned file,
 993    unsigned mask,
 994    unsigned indirect,
 995    unsigned dimension,
 996    int index,
 997    struct tgsi_instruction *instruction,
 998    struct tgsi_header *header )
 999 {
1000    struct tgsi_dst_register dst_register;
1001
1002    assert( file < TGSI_FILE_COUNT );
1003    assert( mask <= TGSI_WRITEMASK_XYZW );
1004    assert( index >= -32768 && index <= 32767 );
1005
1006    dst_register.File = file;
1007    dst_register.WriteMask = mask;
1008    dst_register.Indirect = indirect;
1009    dst_register.Dimension = dimension;
1010    dst_register.Index = index;
1011    dst_register.Padding = 0;
1012
1013    instruction_grow( instruction, header );
1014
1015    return dst_register;
1016 }
1017
1018 static struct tgsi_full_dst_register
1019 tgsi_default_full_dst_register( void )
1020 {
1021    struct tgsi_full_dst_register full_dst_register;
1022
1023    full_dst_register.Register = tgsi_default_dst_register();
1024    full_dst_register.Indirect = tgsi_default_ind_register();
1025    full_dst_register.Dimension = tgsi_default_dimension();
1026    full_dst_register.DimIndirect = tgsi_default_ind_register();
1027
1028    return full_dst_register;
1029 }
1030
1031 struct tgsi_full_instruction
1032 tgsi_default_full_instruction( void )
1033 {
1034    struct tgsi_full_instruction full_instruction;
1035    unsigned i;
1036
1037    full_instruction.Instruction = tgsi_default_instruction();
1038    full_instruction.Label = tgsi_default_instruction_label();
1039    full_instruction.Texture = tgsi_default_instruction_texture();
1040    full_instruction.Memory = tgsi_default_instruction_memory();
1041    for( i = 0;  i < TGSI_FULL_MAX_TEX_OFFSETS; i++ ) {
1042       full_instruction.TexOffsets[i] = tgsi_default_texture_offset();
1043    }
1044    for( i = 0;  i < TGSI_FULL_MAX_DST_REGISTERS; i++ ) {
1045       full_instruction.Dst[i] = tgsi_default_full_dst_register();
1046    }
1047    for( i = 0;  i < TGSI_FULL_MAX_SRC_REGISTERS; i++ ) {
1048       full_instruction.Src[i] = tgsi_default_full_src_register();
1049    }
1050
1051    return full_instruction;
1052 }
1053
1054 unsigned
1055 tgsi_build_full_instruction(
1056    const struct tgsi_full_instruction *full_inst,
1057    struct  tgsi_token *tokens,
1058    struct  tgsi_header *header,
1059    unsigned  maxsize )
1060 {
1061    unsigned size = 0;
1062    unsigned i;
1063    struct tgsi_instruction *instruction;
1064
1065    if( maxsize <= size )
1066       return 0;
1067    instruction = (struct tgsi_instruction *) &tokens[size];
1068    size++;
1069
1070    *instruction = tgsi_build_instruction(full_inst->Instruction.Opcode,
1071                                          full_inst->Instruction.Saturate,
1072                                          full_inst->Instruction.Precise,
1073                                          full_inst->Instruction.NumDstRegs,
1074                                          full_inst->Instruction.NumSrcRegs,
1075                                          header);
1076
1077    if (full_inst->Instruction.Label) {
1078       struct tgsi_instruction_label *instruction_label;
1079
1080       if( maxsize <= size )
1081          return 0;
1082       instruction_label =
1083          (struct  tgsi_instruction_label *) &tokens[size];
1084       size++;
1085
1086       *instruction_label = tgsi_build_instruction_label(
1087          full_inst->Label.Label,
1088          instruction,
1089          header );
1090    }
1091
1092    if (full_inst->Instruction.Texture) {
1093       struct tgsi_instruction_texture *instruction_texture;
1094
1095       if( maxsize <= size )
1096          return 0;
1097       instruction_texture =
1098          (struct  tgsi_instruction_texture *) &tokens[size];
1099       size++;
1100
1101       *instruction_texture = tgsi_build_instruction_texture(
1102          full_inst->Texture.Texture,
1103          full_inst->Texture.NumOffsets,
1104          full_inst->Texture.ReturnType,
1105          instruction,
1106          header   );
1107
1108       for (i = 0; i < full_inst->Texture.NumOffsets; i++) {
1109          struct tgsi_texture_offset *texture_offset;
1110
1111          if ( maxsize <= size )
1112             return 0;
1113          texture_offset = (struct tgsi_texture_offset *)&tokens[size];
1114          size++;
1115          *texture_offset = tgsi_build_texture_offset(
1116             full_inst->TexOffsets[i].Index,
1117             full_inst->TexOffsets[i].File,
1118             full_inst->TexOffsets[i].SwizzleX,
1119             full_inst->TexOffsets[i].SwizzleY,
1120             full_inst->TexOffsets[i].SwizzleZ,
1121             instruction,
1122             header);
1123       }
1124    }
1125
1126    if (full_inst->Instruction.Memory) {
1127       struct tgsi_instruction_memory *instruction_memory;
1128
1129       if( maxsize <= size )
1130          return 0;
1131       instruction_memory =
1132          (struct  tgsi_instruction_memory *) &tokens[size];
1133       size++;
1134
1135       *instruction_memory = tgsi_build_instruction_memory(
1136          full_inst->Memory.Qualifier,
1137          full_inst->Memory.Texture,
1138          full_inst->Memory.Format,
1139          instruction,
1140          header );
1141    }
1142
1143    for( i = 0;  i <   full_inst->Instruction.NumDstRegs; i++ ) {
1144       const struct tgsi_full_dst_register *reg = &full_inst->Dst[i];
1145       struct tgsi_dst_register *dst_register;
1146
1147       if( maxsize <= size )
1148          return 0;
1149       dst_register = (struct tgsi_dst_register *) &tokens[size];
1150       size++;
1151
1152       *dst_register = tgsi_build_dst_register(
1153          reg->Register.File,
1154          reg->Register.WriteMask,
1155          reg->Register.Indirect,
1156          reg->Register.Dimension,
1157          reg->Register.Index,
1158          instruction,
1159          header );
1160
1161       if( reg->Register.Indirect ) {
1162          struct tgsi_ind_register *ind;
1163
1164          if( maxsize <= size )
1165             return 0;
1166          ind = (struct tgsi_ind_register *) &tokens[size];
1167          size++;
1168
1169          *ind = tgsi_build_ind_register(
1170             reg->Indirect.File,
1171             reg->Indirect.Swizzle,
1172             reg->Indirect.Index,
1173             reg->Indirect.ArrayID,
1174             instruction,
1175             header );
1176       }
1177
1178       if( reg->Register.Dimension ) {
1179          struct  tgsi_dimension *dim;
1180
1181          assert( !reg->Dimension.Dimension );
1182
1183          if( maxsize <= size )
1184             return 0;
1185          dim = (struct tgsi_dimension *) &tokens[size];
1186          size++;
1187
1188          *dim = tgsi_build_dimension(
1189             reg->Dimension.Indirect,
1190             reg->Dimension.Index,
1191             instruction,
1192             header );
1193
1194          if( reg->Dimension.Indirect ) {
1195             struct tgsi_ind_register *ind;
1196
1197             if( maxsize <= size )
1198                return 0;
1199             ind = (struct tgsi_ind_register *) &tokens[size];
1200             size++;
1201
1202             *ind = tgsi_build_ind_register(
1203                reg->DimIndirect.File,
1204                reg->DimIndirect.Swizzle,
1205                reg->DimIndirect.Index,
1206                reg->DimIndirect.ArrayID,
1207                instruction,
1208                header );
1209          }
1210       }
1211    }
1212
1213    for( i = 0;  i < full_inst->Instruction.NumSrcRegs; i++ ) {
1214       const struct tgsi_full_src_register *reg = &full_inst->Src[i];
1215       struct tgsi_src_register *src_register;
1216
1217       if( maxsize <= size )
1218          return 0;
1219       src_register = (struct tgsi_src_register *)  &tokens[size];
1220       size++;
1221
1222       *src_register = tgsi_build_src_register(
1223          reg->Register.File,
1224          reg->Register.SwizzleX,
1225          reg->Register.SwizzleY,
1226          reg->Register.SwizzleZ,
1227          reg->Register.SwizzleW,
1228          reg->Register.Negate,
1229          reg->Register.Absolute,
1230          reg->Register.Indirect,
1231          reg->Register.Dimension,
1232          reg->Register.Index,
1233          instruction,
1234          header );
1235
1236       if( reg->Register.Indirect ) {
1237          struct  tgsi_ind_register *ind;
1238
1239          if( maxsize <= size )
1240             return 0;
1241          ind = (struct tgsi_ind_register *) &tokens[size];
1242          size++;
1243
1244          *ind = tgsi_build_ind_register(
1245             reg->Indirect.File,
1246             reg->Indirect.Swizzle,
1247             reg->Indirect.Index,
1248             reg->Indirect.ArrayID,
1249             instruction,
1250             header );
1251       }
1252
1253       if( reg->Register.Dimension ) {
1254          struct  tgsi_dimension *dim;
1255
1256          assert( !reg->Dimension.Dimension );
1257
1258          if( maxsize <= size )
1259             return 0;
1260          dim = (struct tgsi_dimension *) &tokens[size];
1261          size++;
1262
1263          *dim = tgsi_build_dimension(
1264             reg->Dimension.Indirect,
1265             reg->Dimension.Index,
1266             instruction,
1267             header );
1268
1269          if( reg->Dimension.Indirect ) {
1270             struct tgsi_ind_register *ind;
1271
1272             if( maxsize <= size )
1273                return 0;
1274             ind = (struct tgsi_ind_register *) &tokens[size];
1275             size++;
1276
1277             *ind = tgsi_build_ind_register(
1278                reg->DimIndirect.File,
1279                reg->DimIndirect.Swizzle,
1280                reg->DimIndirect.Index,
1281                reg->DimIndirect.ArrayID,
1282                instruction,
1283                header );
1284          }
1285       }
1286    }
1287
1288    return size;
1289 }
1290
1291 static struct tgsi_property
1292 tgsi_default_property( void )
1293 {
1294    struct tgsi_property property;
1295
1296    property.Type = TGSI_TOKEN_TYPE_PROPERTY;
1297    property.NrTokens = 1;
1298    property.PropertyName = TGSI_PROPERTY_GS_INPUT_PRIM;
1299    property.Padding = 0;
1300
1301    return property;
1302 }
1303
1304 static struct tgsi_property
1305 tgsi_build_property(unsigned property_name,
1306                     struct tgsi_header *header)
1307 {
1308    struct tgsi_property property;
1309
1310    property = tgsi_default_property();
1311    property.PropertyName = property_name;
1312
1313    header_bodysize_grow( header );
1314
1315    return property;
1316 }
1317
1318
1319 struct tgsi_full_property
1320 tgsi_default_full_property( void )
1321 {
1322    struct tgsi_full_property  full_property;
1323
1324    full_property.Property  = tgsi_default_property();
1325    memset(full_property.u, 0,
1326           sizeof(struct tgsi_property_data) * 8);
1327
1328    return full_property;
1329 }
1330
1331 static void
1332 property_grow(
1333    struct tgsi_property *property,
1334    struct tgsi_header *header )
1335 {
1336    assert( property->NrTokens < 0xFF );
1337
1338    property->NrTokens++;
1339
1340    header_bodysize_grow( header );
1341 }
1342
1343 static struct tgsi_property_data
1344 tgsi_build_property_data(
1345    unsigned value,
1346    struct tgsi_property *property,
1347    struct tgsi_header *header )
1348 {
1349    struct tgsi_property_data property_data;
1350
1351    property_data.Data = value;
1352
1353    property_grow( property, header );
1354
1355    return property_data;
1356 }
1357
1358 unsigned
1359 tgsi_build_full_property(
1360    const struct tgsi_full_property *full_prop,
1361    struct tgsi_token *tokens,
1362    struct tgsi_header *header,
1363    unsigned maxsize )
1364 {
1365    unsigned size = 0, i;
1366    struct tgsi_property *property;
1367
1368    if( maxsize <= size )
1369       return 0;
1370    property = (struct tgsi_property *) &tokens[size];
1371    size++;
1372
1373    *property = tgsi_build_property(
1374       full_prop->Property.PropertyName,
1375       header );
1376
1377    assert( full_prop->Property.NrTokens <= 8 + 1 );
1378
1379    for( i = 0; i < full_prop->Property.NrTokens - 1; i++ ) {
1380       struct tgsi_property_data *data;
1381
1382       if( maxsize <= size )
1383          return  0;
1384       data = (struct tgsi_property_data *) &tokens[size];
1385       size++;
1386
1387       *data = tgsi_build_property_data(
1388          full_prop->u[i].Data,
1389          property,
1390          header );
1391    }
1392
1393    return size;
1394 }
1395
1396 struct tgsi_full_src_register
1397 tgsi_full_src_register_from_dst(const struct tgsi_full_dst_register *dst)
1398 {
1399    struct tgsi_full_src_register src;
1400    src.Register = tgsi_default_src_register();
1401    src.Register.File = dst->Register.File;
1402    src.Register.Indirect = dst->Register.Indirect;
1403    src.Register.Dimension = dst->Register.Dimension;
1404    src.Register.Index = dst->Register.Index;
1405    src.Indirect = dst->Indirect;
1406    src.Dimension = dst->Dimension;
1407    src.DimIndirect = dst->DimIndirect;
1408    return src;
1409 }