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_range
 167 tgsi_build_declaration_range(
 168    unsigned first,
 169    unsigned last,
 170    struct tgsi_declaration *declaration,
 171    struct tgsi_header *header )
 172 {
 173    struct tgsi_declaration_range declaration_range;
 174
 175    assert( last >= first );
 176    assert( last <= 0xFFFF );
 177
 178    declaration_range.First = first;
 179    declaration_range.Last = last;
 180
 181    declaration_grow( declaration, header );
 182
 183    return declaration_range;
 184 }
 185
 186 static struct tgsi_declaration_dimension
 187 tgsi_build_declaration_dimension(unsigned index_2d,
 188                                  struct tgsi_declaration *declaration,
 189                                  struct tgsi_header *header)
 190 {
 191    struct tgsi_declaration_dimension dd;
 192
 193    assert(index_2d <= 0xFFFF);
 194
 195    dd.Index2D = index_2d;
 196    dd.Padding = 0;
 197
 198    declaration_grow(declaration, header);
 199
 200    return dd;
 201 }
 202
 203 static struct tgsi_declaration_interp
 204 tgsi_default_declaration_interp( void )
 205 {
 206    struct tgsi_declaration_interp di;
 207
 208    di.Interpolate = TGSI_INTERPOLATE_CONSTANT;
 209    di.Location = TGSI_INTERPOLATE_LOC_CENTER;
 210    di.CylindricalWrap = 0;
 211    di.Padding = 0;
 212
 213    return di;
 214 }
 215
 216 static struct tgsi_declaration_interp
 217 tgsi_build_declaration_interp(unsigned interpolate,
 218                               unsigned interpolate_location,
 219                               unsigned cylindrical_wrap,
 220                               struct tgsi_declaration *declaration,
 221                               struct tgsi_header *header)
 222 {
 223    struct tgsi_declaration_interp di;
 224
 225    di.Interpolate = interpolate;
 226    di.Location = interpolate_location;
 227    di.CylindricalWrap = cylindrical_wrap;
 228    di.Padding = 0;
 229
 230    declaration_grow(declaration, header);
 231
 232    return di;
 233 }
 234
 235 static struct tgsi_declaration_semantic
 236 tgsi_default_declaration_semantic( void )
 237 {
 238    struct tgsi_declaration_semantic ds;
 239
 240    ds.Name = TGSI_SEMANTIC_POSITION;
 241    ds.Index = 0;
 242    ds.Padding = 0;
 243
 244    return ds;
 245 }
 246
 247 static struct tgsi_declaration_semantic
 248 tgsi_build_declaration_semantic(
 249    unsigned semantic_name,
 250    unsigned semantic_index,
 251    struct tgsi_declaration *declaration,
 252    struct tgsi_header *header )
 253 {
 254    struct tgsi_declaration_semantic ds;
 255
 256    assert( semantic_name <= TGSI_SEMANTIC_COUNT );
 257    assert( semantic_index <= 0xFFFF );
 258
 259    ds.Name = semantic_name;
 260    ds.Index = semantic_index;
 261    ds.Padding = 0;
 262
 263    declaration_grow( declaration, header );
 264
 265    return ds;
 266 }
 267
 268 static struct tgsi_declaration_image
 269 tgsi_default_declaration_image(void)
 270 {
 271    struct tgsi_declaration_image di;
 272
 273    di.Resource = TGSI_TEXTURE_BUFFER;
 274    di.Raw = 0;
 275    di.Writable = 0;
 276    di.Format = 0;
 277    di.Padding = 0;
 278
 279    return di;
 280 }
 281
 282 static struct tgsi_declaration_image
 283 tgsi_build_declaration_image(unsigned texture,
 284                              unsigned format,
 285                              unsigned raw,
 286                              unsigned writable,
 287                              struct tgsi_declaration *declaration,
 288                              struct tgsi_header *header)
 289 {
 290    struct tgsi_declaration_image di;
 291
 292    di = tgsi_default_declaration_image();
 293    di.Resource = texture;
 294    di.Format = format;
 295    di.Raw = raw;
 296    di.Writable = writable;
 297
 298    declaration_grow(declaration, header);
 299
 300    return di;
 301 }
 302
 303 static struct tgsi_declaration_sampler_view
 304 tgsi_default_declaration_sampler_view(void)
 305 {
 306    struct tgsi_declaration_sampler_view dsv;
 307
 308    dsv.Resource = TGSI_TEXTURE_BUFFER;
 309    dsv.ReturnTypeX = TGSI_RETURN_TYPE_UNORM;
 310    dsv.ReturnTypeY = TGSI_RETURN_TYPE_UNORM;
 311    dsv.ReturnTypeZ = TGSI_RETURN_TYPE_UNORM;
 312    dsv.ReturnTypeW = TGSI_RETURN_TYPE_UNORM;
 313
 314    return dsv;
 315 }
 316
 317 static struct tgsi_declaration_sampler_view
 318 tgsi_build_declaration_sampler_view(unsigned texture,
 319                                     unsigned return_type_x,
 320                                     unsigned return_type_y,
 321                                     unsigned return_type_z,
 322                                     unsigned return_type_w,
 323                                     struct tgsi_declaration *declaration,
 324                                     struct tgsi_header *header)
 325 {
 326    struct tgsi_declaration_sampler_view dsv;
 327
 328    dsv = tgsi_default_declaration_sampler_view();
 329    dsv.Resource = texture;
 330    dsv.ReturnTypeX = return_type_x;
 331    dsv.ReturnTypeY = return_type_y;
 332    dsv.ReturnTypeZ = return_type_z;
 333    dsv.ReturnTypeW = return_type_w;
 334
 335    declaration_grow(declaration, header);
 336
 337    return dsv;
 338 }
 339
 340
 341 static struct tgsi_declaration_array
 342 tgsi_default_declaration_array( void )
 343 {
 344    struct tgsi_declaration_array a;
 345
 346    a.ArrayID = 0;
 347    a.Padding = 0;
 348
 349    return a;
 350 }
 351
 352 static struct tgsi_declaration_array
 353 tgsi_build_declaration_array(unsigned arrayid,
 354                              struct tgsi_declaration *declaration,
 355                              struct tgsi_header *header)
 356 {
 357    struct tgsi_declaration_array da;
 358
 359    da = tgsi_default_declaration_array();
 360    da.ArrayID = arrayid;
 361
 362    declaration_grow(declaration, header);
 363
 364    return da;
 365 }
 366
 367 struct tgsi_full_declaration
 368 tgsi_default_full_declaration( void )
 369 {
 370    struct tgsi_full_declaration  full_declaration;
 371
 372    full_declaration.Declaration  = tgsi_default_declaration();
 373    full_declaration.Range = tgsi_default_declaration_range();
 374    full_declaration.Semantic = tgsi_default_declaration_semantic();
 375    full_declaration.Interp = tgsi_default_declaration_interp();
 376    full_declaration.Image = tgsi_default_declaration_image();
 377    full_declaration.SamplerView = tgsi_default_declaration_sampler_view();
 378    full_declaration.Array = tgsi_default_declaration_array();
 379
 380    return full_declaration;
 381 }
 382
 383 unsigned
 384 tgsi_build_full_declaration(
 385    const struct tgsi_full_declaration *full_decl,
 386    struct tgsi_token *tokens,
 387    struct tgsi_header *header,
 388    unsigned maxsize )
 389 {
 390    unsigned size = 0;
 391    struct tgsi_declaration *declaration;
 392    struct tgsi_declaration_range *dr;
 393
 394    if( maxsize <= size )
 395       return 0;
 396    declaration = (struct tgsi_declaration *) &tokens[size];
 397    size++;
 398
 399    *declaration = tgsi_build_declaration(
 400       full_decl->Declaration.File,
 401       full_decl->Declaration.UsageMask,
 402       full_decl->Declaration.Interpolate,
 403       full_decl->Declaration.Dimension,
 404       full_decl->Declaration.Semantic,
 405       full_decl->Declaration.Invariant,
 406       full_decl->Declaration.Local,
 407       full_decl->Declaration.Array,
 408       full_decl->Declaration.Atomic,
 409       full_decl->Declaration.MemType,
 410       header );
 411
 412    if (maxsize <= size)
 413       return 0;
 414    dr = (struct tgsi_declaration_range *) &tokens[size];
 415    size++;
 416
 417    *dr = tgsi_build_declaration_range(
 418       full_decl->Range.First,
 419       full_decl->Range.Last,
 420       declaration,
 421       header );
 422
 423    if (full_decl->Declaration.Dimension) {
 424       struct tgsi_declaration_dimension *dd;
 425
 426       if (maxsize <= size) {
 427          return 0;
 428       }
 429       dd = (struct tgsi_declaration_dimension *)&tokens[size];
 430       size++;
 431
 432       *dd = tgsi_build_declaration_dimension(full_decl->Dim.Index2D,
 433                                              declaration,
 434                                              header);
 435    }
 436
 437    if (full_decl->Declaration.Interpolate) {
 438       struct tgsi_declaration_interp *di;
 439
 440       if (maxsize <= size) {
 441          return 0;
 442       }
 443       di = (struct tgsi_declaration_interp *)&tokens[size];
 444       size++;
 445
 446       *di = tgsi_build_declaration_interp(full_decl->Interp.Interpolate,
 447                                           full_decl->Interp.Location,
 448                                           full_decl->Interp.CylindricalWrap,
 449                                           declaration,
 450                                           header);
 451    }
 452
 453    if( full_decl->Declaration.Semantic ) {
 454       struct tgsi_declaration_semantic *ds;
 455
 456       if( maxsize <= size )
 457          return  0;
 458       ds = (struct tgsi_declaration_semantic *) &tokens[size];
 459       size++;
 460
 461       *ds = tgsi_build_declaration_semantic(
 462          full_decl->Semantic.Name,
 463          full_decl->Semantic.Index,
 464          declaration,
 465          header );
 466    }
 467
 468    if (full_decl->Declaration.File == TGSI_FILE_IMAGE) {
 469       struct tgsi_declaration_image *di;
 470
 471       if (maxsize <= size) {
 472          return  0;
 473       }
 474       di = (struct tgsi_declaration_image *)&tokens[size];
 475       size++;
 476
 477       *di = tgsi_build_declaration_image(full_decl->Image.Resource,
 478                                          full_decl->Image.Format,
 479                                          full_decl->Image.Raw,
 480                                          full_decl->Image.Writable,
 481                                          declaration,
 482                                          header);
 483    }
 484
 485    if (full_decl->Declaration.File == TGSI_FILE_SAMPLER_VIEW) {
 486       struct tgsi_declaration_sampler_view *dsv;
 487
 488       if (maxsize <= size) {
 489          return  0;
 490       }
 491       dsv = (struct tgsi_declaration_sampler_view *)&tokens[size];
 492       size++;
 493
 494       *dsv = tgsi_build_declaration_sampler_view(
 495          full_decl->SamplerView.Resource,
 496          full_decl->SamplerView.ReturnTypeX,
 497          full_decl->SamplerView.ReturnTypeY,
 498          full_decl->SamplerView.ReturnTypeZ,
 499          full_decl->SamplerView.ReturnTypeW,
 500          declaration,
 501          header);
 502    }
 503
 504    if (full_decl->Declaration.Array) {
 505       struct tgsi_declaration_array *da;
 506
 507       if (maxsize <= size) {
 508          return 0;
 509       }
 510       da = (struct tgsi_declaration_array *)&tokens[size];
 511       size++;
 512       *da = tgsi_build_declaration_array(
 513          full_decl->Array.ArrayID,
 514          declaration,
 515          header);
 516    }
 517    return size;
 518 }
 519
 520 /*
 521  * immediate
 522  */
 523
 524 static struct tgsi_immediate
 525 tgsi_default_immediate( void )
 526 {
 527    struct tgsi_immediate immediate;
 528
 529    immediate.Type = TGSI_TOKEN_TYPE_IMMEDIATE;
 530    immediate.NrTokens = 1;
 531    immediate.DataType = TGSI_IMM_FLOAT32;
 532    immediate.Padding = 0;
 533
 534    return immediate;
 535 }
 536
 537 static struct tgsi_immediate
 538 tgsi_build_immediate(
 539    struct tgsi_header *header,
 540    unsigned type )
 541 {
 542    struct tgsi_immediate immediate;
 543
 544    immediate = tgsi_default_immediate();
 545    immediate.DataType = type;
 546
 547    header_bodysize_grow( header );
 548
 549    return immediate;
 550 }
 551
 552 struct tgsi_full_immediate
 553 tgsi_default_full_immediate( void )
 554 {
 555    struct tgsi_full_immediate fullimm;
 556
 557    fullimm.Immediate = tgsi_default_immediate();
 558    fullimm.u[0].Float = 0.0f;
 559    fullimm.u[1].Float = 0.0f;
 560    fullimm.u[2].Float = 0.0f;
 561    fullimm.u[3].Float = 0.0f;
 562
 563    return fullimm;
 564 }
 565
 566 static void
 567 immediate_grow(
 568    struct tgsi_immediate *immediate,
 569    struct tgsi_header *header )
 570 {
 571    assert( immediate->NrTokens < 0xFF );
 572
 573    immediate->NrTokens++;
 574
 575    header_bodysize_grow( header );
 576 }
 577
 578 unsigned
 579 tgsi_build_full_immediate(
 580    const struct tgsi_full_immediate *full_imm,
 581    struct tgsi_token *tokens,
 582    struct tgsi_header *header,
 583    unsigned maxsize )
 584 {
 585    unsigned size = 0, i;
 586    struct tgsi_immediate *immediate;
 587
 588    if( maxsize <= size )
 589       return 0;
 590    immediate = (struct tgsi_immediate *) &tokens[size];
 591    size++;
 592
 593    *immediate = tgsi_build_immediate( header, full_imm->Immediate.DataType );
 594
 595    assert( full_imm->Immediate.NrTokens <= 4 + 1 );
 596
 597    for( i = 0; i < full_imm->Immediate.NrTokens - 1; i++ ) {
 598       union tgsi_immediate_data *data;
 599
 600       if( maxsize <= size )
 601          return  0;
 602
 603       data = (union tgsi_immediate_data *) &tokens[size];
 604       *data = full_imm->u[i];
 605
 606       immediate_grow( immediate, header );
 607       size++;
 608    }
 609
 610    return size;
 611 }
 612
 613 /*
 614  * instruction
 615  */
 616
 617 struct tgsi_instruction
 618 tgsi_default_instruction( void )
 619 {
 620    struct tgsi_instruction instruction;
 621
 622    instruction.Type = TGSI_TOKEN_TYPE_INSTRUCTION;
 623    instruction.NrTokens = 0;
 624    instruction.Opcode = TGSI_OPCODE_MOV;
 625    instruction.Saturate = 0;
 626    instruction.Predicate = 0;
 627    instruction.NumDstRegs = 1;
 628    instruction.NumSrcRegs = 1;
 629    instruction.Label = 0;
 630    instruction.Texture = 0;
 631    instruction.Memory = 0;
 632    instruction.Padding = 0;
 633
 634    return instruction;
 635 }
 636
 637 static struct tgsi_instruction
 638 tgsi_build_instruction(unsigned opcode,
 639                        unsigned saturate,
 640                        unsigned predicate,
 641                        unsigned num_dst_regs,
 642                        unsigned num_src_regs,
 643                        struct tgsi_header *header)
 644 {
 645    struct tgsi_instruction instruction;
 646
 647    assert (opcode <= TGSI_OPCODE_LAST);
 648    assert (saturate <= 1);
 649    assert (num_dst_regs <= 3);
 650    assert (num_src_regs <= 15);
 651
 652    instruction = tgsi_default_instruction();
 653    instruction.Opcode = opcode;
 654    instruction.Saturate = saturate;
 655    instruction.Predicate = predicate;
 656    instruction.NumDstRegs = num_dst_regs;
 657    instruction.NumSrcRegs = num_src_regs;
 658
 659    header_bodysize_grow( header );
 660
 661    return instruction;
 662 }
 663
 664 static void
 665 instruction_grow(
 666    struct tgsi_instruction *instruction,
 667    struct tgsi_header *header )
 668 {
 669    assert (instruction->NrTokens <   0xFF);
 670
 671    instruction->NrTokens++;
 672
 673    header_bodysize_grow( header );
 674 }
 675
 676 struct tgsi_instruction_predicate
 677 tgsi_default_instruction_predicate(void)
 678 {
 679    struct tgsi_instruction_predicate instruction_predicate;
 680
 681    instruction_predicate.SwizzleX = TGSI_SWIZZLE_X;
 682    instruction_predicate.SwizzleY = TGSI_SWIZZLE_Y;
 683    instruction_predicate.SwizzleZ = TGSI_SWIZZLE_Z;
 684    instruction_predicate.SwizzleW = TGSI_SWIZZLE_W;
 685    instruction_predicate.Negate = 0;
 686    instruction_predicate.Index = 0;
 687    instruction_predicate.Padding = 0;
 688
 689    return instruction_predicate;
 690 }
 691
 692 static struct tgsi_instruction_predicate
 693 tgsi_build_instruction_predicate(int index,
 694                                  unsigned negate,
 695                                  unsigned swizzleX,
 696                                  unsigned swizzleY,
 697                                  unsigned swizzleZ,
 698                                  unsigned swizzleW,
 699                                  struct tgsi_instruction *instruction,
 700                                  struct tgsi_header *header)
 701 {
 702    struct tgsi_instruction_predicate instruction_predicate;
 703
 704    instruction_predicate = tgsi_default_instruction_predicate();
 705    instruction_predicate.SwizzleX = swizzleX;
 706    instruction_predicate.SwizzleY = swizzleY;
 707    instruction_predicate.SwizzleZ = swizzleZ;
 708    instruction_predicate.SwizzleW = swizzleW;
 709    instruction_predicate.Negate = negate;
 710    instruction_predicate.Index = index;
 711
 712    instruction_grow(instruction, header);
 713
 714    return instruction_predicate;
 715 }
 716
 717 static struct tgsi_instruction_label
 718 tgsi_default_instruction_label( void )
 719 {
 720    struct tgsi_instruction_label instruction_label;
 721
 722    instruction_label.Label = 0;
 723    instruction_label.Padding = 0;
 724
 725    return instruction_label;
 726 }
 727
 728 static struct tgsi_instruction_label
 729 tgsi_build_instruction_label(
 730    unsigned label,
 731    struct tgsi_token  *prev_token,
 732    struct tgsi_instruction *instruction,
 733    struct tgsi_header *header )
 734 {
 735    struct tgsi_instruction_label instruction_label;
 736
 737    instruction_label.Label = label;
 738    instruction_label.Padding = 0;
 739    instruction->Label = 1;
 740
 741    instruction_grow( instruction, header );
 742
 743    return instruction_label;
 744 }
 745
 746 static struct tgsi_instruction_texture
 747 tgsi_default_instruction_texture( void )
 748 {
 749    struct tgsi_instruction_texture instruction_texture;
 750
 751    instruction_texture.Texture = TGSI_TEXTURE_UNKNOWN;
 752    instruction_texture.NumOffsets = 0;
 753    instruction_texture.Padding = 0;
 754
 755    return instruction_texture;
 756 }
 757
 758 static struct tgsi_instruction_texture
 759 tgsi_build_instruction_texture(
 760    unsigned texture,
 761    unsigned num_offsets,
 762    struct tgsi_token *prev_token,
 763    struct tgsi_instruction *instruction,
 764    struct tgsi_header *header )
 765 {
 766    struct tgsi_instruction_texture instruction_texture;
 767
 768    instruction_texture.Texture = texture;
 769    instruction_texture.NumOffsets = num_offsets;
 770    instruction_texture.Padding = 0;
 771    instruction->Texture = 1;
 772
 773    instruction_grow( instruction, header );
 774
 775    return instruction_texture;
 776 }
 777
 778 static struct tgsi_instruction_memory
 779 tgsi_default_instruction_memory( void )
 780 {
 781    struct tgsi_instruction_memory instruction_memory;
 782
 783    instruction_memory.Qualifier = 0;
 784    instruction_memory.Texture = 0;
 785    instruction_memory.Format = 0;
 786    instruction_memory.Padding = 0;
 787
 788    return instruction_memory;
 789 }
 790
 791 static struct tgsi_instruction_memory
 792 tgsi_build_instruction_memory(
 793    unsigned qualifier,
 794    struct tgsi_token *prev_token,
 795    struct tgsi_instruction *instruction,
 796    struct tgsi_header *header )
 797 {
 798    struct tgsi_instruction_memory instruction_memory;
 799
 800    instruction_memory.Qualifier = qualifier;
 801    instruction_memory.Texture = 0;
 802    instruction_memory.Format = 0;
 803    instruction_memory.Padding = 0;
 804    instruction->Memory = 1;
 805
 806    instruction_grow( instruction, header );
 807
 808    return instruction_memory;
 809 }
 810
 811 static struct tgsi_texture_offset
 812 tgsi_default_texture_offset( void )
 813 {
 814    struct tgsi_texture_offset texture_offset;
 815
 816    texture_offset.Index = 0;
 817    texture_offset.File = 0;
 818    texture_offset.SwizzleX = 0;
 819    texture_offset.SwizzleY = 0;
 820    texture_offset.SwizzleZ = 0;
 821    texture_offset.Padding = 0;
 822
 823    return texture_offset;
 824 }
 825
 826 static struct tgsi_texture_offset
 827 tgsi_build_texture_offset(
 828    int index, int file, int swizzle_x, int swizzle_y, int swizzle_z,
 829    struct tgsi_token *prev_token,
 830    struct tgsi_instruction *instruction,
 831    struct tgsi_header *header )
 832 {
 833    struct tgsi_texture_offset texture_offset;
 834
 835    texture_offset.Index = index;
 836    texture_offset.File = file;
 837    texture_offset.SwizzleX = swizzle_x;
 838    texture_offset.SwizzleY = swizzle_y;
 839    texture_offset.SwizzleZ = swizzle_z;
 840    texture_offset.Padding = 0;
 841
 842    instruction_grow( instruction, header );
 843
 844    return texture_offset;
 845 }
 846
 847 static struct tgsi_src_register
 848 tgsi_default_src_register( void )
 849 {
 850    struct tgsi_src_register src_register;
 851
 852    src_register.File = TGSI_FILE_NULL;
 853    src_register.SwizzleX = TGSI_SWIZZLE_X;
 854    src_register.SwizzleY = TGSI_SWIZZLE_Y;
 855    src_register.SwizzleZ = TGSI_SWIZZLE_Z;
 856    src_register.SwizzleW = TGSI_SWIZZLE_W;
 857    src_register.Negate = 0;
 858    src_register.Absolute = 0;
 859    src_register.Indirect = 0;
 860    src_register.Dimension = 0;
 861    src_register.Index = 0;
 862
 863    return src_register;
 864 }
 865
 866 static struct tgsi_src_register
 867 tgsi_build_src_register(
 868    unsigned file,
 869    unsigned swizzle_x,
 870    unsigned swizzle_y,
 871    unsigned swizzle_z,
 872    unsigned swizzle_w,
 873    unsigned negate,
 874    unsigned absolute,
 875    unsigned indirect,
 876    unsigned dimension,
 877    int index,
 878    struct tgsi_instruction *instruction,
 879    struct tgsi_header *header )
 880 {
 881    struct tgsi_src_register   src_register;
 882
 883    assert( file < TGSI_FILE_COUNT );
 884    assert( swizzle_x <= TGSI_SWIZZLE_W );
 885    assert( swizzle_y <= TGSI_SWIZZLE_W );
 886    assert( swizzle_z <= TGSI_SWIZZLE_W );
 887    assert( swizzle_w <= TGSI_SWIZZLE_W );
 888    assert( negate <= 1 );
 889    assert( index >= -0x8000 && index <= 0x7FFF );
 890
 891    src_register.File = file;
 892    src_register.SwizzleX = swizzle_x;
 893    src_register.SwizzleY = swizzle_y;
 894    src_register.SwizzleZ = swizzle_z;
 895    src_register.SwizzleW = swizzle_w;
 896    src_register.Negate = negate;
 897    src_register.Absolute = absolute;
 898    src_register.Indirect = indirect;
 899    src_register.Dimension = dimension;
 900    src_register.Index = index;
 901
 902    instruction_grow( instruction, header );
 903
 904    return src_register;
 905 }
 906
 907 static struct tgsi_ind_register
 908 tgsi_default_ind_register( void )
 909 {
 910    struct tgsi_ind_register ind_register;
 911
 912    ind_register.File = TGSI_FILE_NULL;
 913    ind_register.Index = 0;
 914    ind_register.Swizzle = TGSI_SWIZZLE_X;
 915    ind_register.ArrayID = 0;
 916
 917    return ind_register;
 918 }
 919
 920 static struct tgsi_ind_register
 921 tgsi_build_ind_register(
 922    unsigned file,
 923    unsigned swizzle,
 924    int index,
 925    unsigned arrayid,
 926    struct tgsi_instruction *instruction,
 927    struct tgsi_header *header )
 928 {
 929    struct tgsi_ind_register   ind_register;
 930
 931    assert( file < TGSI_FILE_COUNT );
 932    assert( swizzle <= TGSI_SWIZZLE_W );
 933    assert( index >= -0x8000 && index <= 0x7FFF );
 934
 935    ind_register.File = file;
 936    ind_register.Swizzle = swizzle;
 937    ind_register.Index = index;
 938    ind_register.ArrayID = arrayid;
 939
 940    instruction_grow( instruction, header );
 941
 942    return ind_register;
 943 }
 944
 945 static struct tgsi_dimension
 946 tgsi_default_dimension( void )
 947 {
 948    struct tgsi_dimension dimension;
 949
 950    dimension.Indirect = 0;
 951    dimension.Dimension = 0;
 952    dimension.Padding = 0;
 953    dimension.Index = 0;
 954
 955    return dimension;
 956 }
 957
 958 static struct tgsi_full_src_register
 959 tgsi_default_full_src_register( void )
 960 {
 961    struct tgsi_full_src_register full_src_register;
 962
 963    full_src_register.Register = tgsi_default_src_register();
 964    full_src_register.Indirect = tgsi_default_ind_register();
 965    full_src_register.Dimension = tgsi_default_dimension();
 966    full_src_register.DimIndirect = tgsi_default_ind_register();
 967
 968    return full_src_register;
 969 }
 970
 971 static struct tgsi_dimension
 972 tgsi_build_dimension(
 973    unsigned indirect,
 974    unsigned index,
 975    struct tgsi_instruction *instruction,
 976    struct tgsi_header *header )
 977 {
 978    struct tgsi_dimension dimension;
 979
 980    dimension.Indirect = indirect;
 981    dimension.Dimension = 0;
 982    dimension.Padding = 0;
 983    dimension.Index = index;
 984
 985    instruction_grow( instruction, header );
 986
 987    return dimension;
 988 }
 989
 990 static struct tgsi_dst_register
 991 tgsi_default_dst_register( void )
 992 {
 993    struct tgsi_dst_register dst_register;
 994
 995    dst_register.File = TGSI_FILE_NULL;
 996    dst_register.WriteMask = TGSI_WRITEMASK_XYZW;
 997    dst_register.Indirect = 0;
 998    dst_register.Dimension = 0;
 999    dst_register.Index = 0;
1000    dst_register.Padding = 0;
1001
1002    return dst_register;
1003 }
1004
1005 static struct tgsi_dst_register
1006 tgsi_build_dst_register(
1007    unsigned file,
1008    unsigned mask,
1009    unsigned indirect,
1010    unsigned dimension,
1011    int index,
1012    struct tgsi_instruction *instruction,
1013    struct tgsi_header *header )
1014 {
1015    struct tgsi_dst_register dst_register;
1016
1017    assert( file < TGSI_FILE_COUNT );
1018    assert( mask <= TGSI_WRITEMASK_XYZW );
1019    assert( index >= -32768 && index <= 32767 );
1020
1021    dst_register.File = file;
1022    dst_register.WriteMask = mask;
1023    dst_register.Indirect = indirect;
1024    dst_register.Dimension = dimension;
1025    dst_register.Index = index;
1026    dst_register.Padding = 0;
1027
1028    instruction_grow( instruction, header );
1029
1030    return dst_register;
1031 }
1032
1033 static struct tgsi_full_dst_register
1034 tgsi_default_full_dst_register( void )
1035 {
1036    struct tgsi_full_dst_register full_dst_register;
1037
1038    full_dst_register.Register = tgsi_default_dst_register();
1039    full_dst_register.Indirect = tgsi_default_ind_register();
1040    full_dst_register.Dimension = tgsi_default_dimension();
1041    full_dst_register.DimIndirect = tgsi_default_ind_register();
1042
1043    return full_dst_register;
1044 }
1045
1046 struct tgsi_full_instruction
1047 tgsi_default_full_instruction( void )
1048 {
1049    struct tgsi_full_instruction full_instruction;
1050    unsigned i;
1051
1052    full_instruction.Instruction = tgsi_default_instruction();
1053    full_instruction.Predicate = tgsi_default_instruction_predicate();
1054    full_instruction.Label = tgsi_default_instruction_label();
1055    full_instruction.Texture = tgsi_default_instruction_texture();
1056    full_instruction.Memory = tgsi_default_instruction_memory();
1057    for( i = 0;  i < TGSI_FULL_MAX_TEX_OFFSETS; i++ ) {
1058       full_instruction.TexOffsets[i] = tgsi_default_texture_offset();
1059    }
1060    for( i = 0;  i < TGSI_FULL_MAX_DST_REGISTERS; i++ ) {
1061       full_instruction.Dst[i] = tgsi_default_full_dst_register();
1062    }
1063    for( i = 0;  i < TGSI_FULL_MAX_SRC_REGISTERS; i++ ) {
1064       full_instruction.Src[i] = tgsi_default_full_src_register();
1065    }
1066
1067    return full_instruction;
1068 }
1069
1070 unsigned
1071 tgsi_build_full_instruction(
1072    const struct tgsi_full_instruction *full_inst,
1073    struct  tgsi_token *tokens,
1074    struct  tgsi_header *header,
1075    unsigned  maxsize )
1076 {
1077    unsigned size = 0;
1078    unsigned i;
1079    struct tgsi_instruction *instruction;
1080    struct tgsi_token *prev_token;
1081
1082    if( maxsize <= size )
1083       return 0;
1084    instruction = (struct tgsi_instruction *) &tokens[size];
1085    size++;
1086
1087    *instruction = tgsi_build_instruction(full_inst->Instruction.Opcode,
1088                                          full_inst->Instruction.Saturate,
1089                                          full_inst->Instruction.Predicate,
1090                                          full_inst->Instruction.NumDstRegs,
1091                                          full_inst->Instruction.NumSrcRegs,
1092                                          header);
1093    prev_token = (struct tgsi_token  *) instruction;
1094
1095    if (full_inst->Instruction.Predicate) {
1096       struct tgsi_instruction_predicate *instruction_predicate;
1097
1098       if (maxsize <= size) {
1099          return 0;
1100       }
1101       instruction_predicate = (struct tgsi_instruction_predicate *)&tokens[size];
1102       size++;
1103
1104       *instruction_predicate =
1105          tgsi_build_instruction_predicate(full_inst->Predicate.Index,
1106                                           full_inst->Predicate.Negate,
1107                                           full_inst->Predicate.SwizzleX,
1108                                           full_inst->Predicate.SwizzleY,
1109                                           full_inst->Predicate.SwizzleZ,
1110                                           full_inst->Predicate.SwizzleW,
1111                                           instruction,
1112                                           header);
1113    }
1114
1115    if (full_inst->Instruction.Label) {
1116       struct tgsi_instruction_label *instruction_label;
1117
1118       if( maxsize <= size )
1119          return 0;
1120       instruction_label =
1121          (struct  tgsi_instruction_label *) &tokens[size];
1122       size++;
1123
1124       *instruction_label = tgsi_build_instruction_label(
1125          full_inst->Label.Label,
1126          prev_token,
1127          instruction,
1128          header );
1129       prev_token = (struct tgsi_token  *) instruction_label;
1130    }
1131
1132    if (full_inst->Instruction.Texture) {
1133       struct tgsi_instruction_texture *instruction_texture;
1134
1135       if( maxsize <= size )
1136          return 0;
1137       instruction_texture =
1138          (struct  tgsi_instruction_texture *) &tokens[size];
1139       size++;
1140
1141       *instruction_texture = tgsi_build_instruction_texture(
1142          full_inst->Texture.Texture,
1143          full_inst->Texture.NumOffsets,
1144          prev_token,
1145          instruction,
1146          header   );
1147       prev_token = (struct tgsi_token  *) instruction_texture;
1148
1149       for (i = 0; i < full_inst->Texture.NumOffsets; i++) {
1150          struct tgsi_texture_offset *texture_offset;
1151
1152          if ( maxsize <= size )
1153             return 0;
1154          texture_offset = (struct tgsi_texture_offset *)&tokens[size];
1155          size++;
1156          *texture_offset = tgsi_build_texture_offset(
1157             full_inst->TexOffsets[i].Index,
1158             full_inst->TexOffsets[i].File,
1159             full_inst->TexOffsets[i].SwizzleX,
1160             full_inst->TexOffsets[i].SwizzleY,
1161             full_inst->TexOffsets[i].SwizzleZ,
1162             prev_token,
1163             instruction,
1164             header);
1165          prev_token = (struct tgsi_token *) texture_offset;
1166       }
1167    }
1168
1169    if (full_inst->Instruction.Memory) {
1170       struct tgsi_instruction_memory *instruction_memory;
1171
1172       if( maxsize <= size )
1173          return 0;
1174       instruction_memory =
1175          (struct  tgsi_instruction_memory *) &tokens[size];
1176       size++;
1177
1178       *instruction_memory = tgsi_build_instruction_memory(
1179          full_inst->Memory.Qualifier,
1180          prev_token,
1181          instruction,
1182          header );
1183       prev_token = (struct tgsi_token  *) instruction_memory;
1184    }
1185
1186    for( i = 0;  i <   full_inst->Instruction.NumDstRegs; i++ ) {
1187       const struct tgsi_full_dst_register *reg = &full_inst->Dst[i];
1188       struct tgsi_dst_register *dst_register;
1189
1190       if( maxsize <= size )
1191          return 0;
1192       dst_register = (struct tgsi_dst_register *) &tokens[size];
1193       size++;
1194
1195       *dst_register = tgsi_build_dst_register(
1196          reg->Register.File,
1197          reg->Register.WriteMask,
1198          reg->Register.Indirect,
1199          reg->Register.Dimension,
1200          reg->Register.Index,
1201          instruction,
1202          header );
1203
1204       if( reg->Register.Indirect ) {
1205          struct tgsi_ind_register *ind;
1206
1207          if( maxsize <= size )
1208             return 0;
1209          ind = (struct tgsi_ind_register *) &tokens[size];
1210          size++;
1211
1212          *ind = tgsi_build_ind_register(
1213             reg->Indirect.File,
1214             reg->Indirect.Swizzle,
1215             reg->Indirect.Index,
1216             reg->Indirect.ArrayID,
1217             instruction,
1218             header );
1219       }
1220
1221       if( reg->Register.Dimension ) {
1222          struct  tgsi_dimension *dim;
1223
1224          assert( !reg->Dimension.Dimension );
1225
1226          if( maxsize <= size )
1227             return 0;
1228          dim = (struct tgsi_dimension *) &tokens[size];
1229          size++;
1230
1231          *dim = tgsi_build_dimension(
1232             reg->Dimension.Indirect,
1233             reg->Dimension.Index,
1234             instruction,
1235             header );
1236
1237          if( reg->Dimension.Indirect ) {
1238             struct tgsi_ind_register *ind;
1239
1240             if( maxsize <= size )
1241                return 0;
1242             ind = (struct tgsi_ind_register *) &tokens[size];
1243             size++;
1244
1245             *ind = tgsi_build_ind_register(
1246                reg->DimIndirect.File,
1247                reg->DimIndirect.Swizzle,
1248                reg->DimIndirect.Index,
1249                reg->DimIndirect.ArrayID,
1250                instruction,
1251                header );
1252          }
1253       }
1254    }
1255
1256    for( i = 0;  i < full_inst->Instruction.NumSrcRegs; i++ ) {
1257       const struct tgsi_full_src_register *reg = &full_inst->Src[i];
1258       struct tgsi_src_register *src_register;
1259
1260       if( maxsize <= size )
1261          return 0;
1262       src_register = (struct tgsi_src_register *)  &tokens[size];
1263       size++;
1264
1265       *src_register = tgsi_build_src_register(
1266          reg->Register.File,
1267          reg->Register.SwizzleX,
1268          reg->Register.SwizzleY,
1269          reg->Register.SwizzleZ,
1270          reg->Register.SwizzleW,
1271          reg->Register.Negate,
1272          reg->Register.Absolute,
1273          reg->Register.Indirect,
1274          reg->Register.Dimension,
1275          reg->Register.Index,
1276          instruction,
1277          header );
1278
1279       if( reg->Register.Indirect ) {
1280          struct  tgsi_ind_register *ind;
1281
1282          if( maxsize <= size )
1283             return 0;
1284          ind = (struct tgsi_ind_register *) &tokens[size];
1285          size++;
1286
1287          *ind = tgsi_build_ind_register(
1288             reg->Indirect.File,
1289             reg->Indirect.Swizzle,
1290             reg->Indirect.Index,
1291             reg->Indirect.ArrayID,
1292             instruction,
1293             header );
1294       }
1295
1296       if( reg->Register.Dimension ) {
1297          struct  tgsi_dimension *dim;
1298
1299          assert( !reg->Dimension.Dimension );
1300
1301          if( maxsize <= size )
1302             return 0;
1303          dim = (struct tgsi_dimension *) &tokens[size];
1304          size++;
1305
1306          *dim = tgsi_build_dimension(
1307             reg->Dimension.Indirect,
1308             reg->Dimension.Index,
1309             instruction,
1310             header );
1311
1312          if( reg->Dimension.Indirect ) {
1313             struct tgsi_ind_register *ind;
1314
1315             if( maxsize <= size )
1316                return 0;
1317             ind = (struct tgsi_ind_register *) &tokens[size];
1318             size++;
1319
1320             *ind = tgsi_build_ind_register(
1321                reg->DimIndirect.File,
1322                reg->DimIndirect.Swizzle,
1323                reg->DimIndirect.Index,
1324                reg->DimIndirect.ArrayID,
1325                instruction,
1326                header );
1327          }
1328       }
1329    }
1330
1331    return size;
1332 }
1333
1334 static struct tgsi_property
1335 tgsi_default_property( void )
1336 {
1337    struct tgsi_property property;
1338
1339    property.Type = TGSI_TOKEN_TYPE_PROPERTY;
1340    property.NrTokens = 1;
1341    property.PropertyName = TGSI_PROPERTY_GS_INPUT_PRIM;
1342    property.Padding = 0;
1343
1344    return property;
1345 }
1346
1347 static struct tgsi_property
1348 tgsi_build_property(unsigned property_name,
1349                     struct tgsi_header *header)
1350 {
1351    struct tgsi_property property;
1352
1353    property = tgsi_default_property();
1354    property.PropertyName = property_name;
1355
1356    header_bodysize_grow( header );
1357
1358    return property;
1359 }
1360
1361
1362 struct tgsi_full_property
1363 tgsi_default_full_property( void )
1364 {
1365    struct tgsi_full_property  full_property;
1366
1367    full_property.Property  = tgsi_default_property();
1368    memset(full_property.u, 0,
1369           sizeof(struct tgsi_property_data) * 8);
1370
1371    return full_property;
1372 }
1373
1374 static void
1375 property_grow(
1376    struct tgsi_property *property,
1377    struct tgsi_header *header )
1378 {
1379    assert( property->NrTokens < 0xFF );
1380
1381    property->NrTokens++;
1382
1383    header_bodysize_grow( header );
1384 }
1385
1386 static struct tgsi_property_data
1387 tgsi_build_property_data(
1388    unsigned value,
1389    struct tgsi_property *property,
1390    struct tgsi_header *header )
1391 {
1392    struct tgsi_property_data property_data;
1393
1394    property_data.Data = value;
1395
1396    property_grow( property, header );
1397
1398    return property_data;
1399 }
1400
1401 unsigned
1402 tgsi_build_full_property(
1403    const struct tgsi_full_property *full_prop,
1404    struct tgsi_token *tokens,
1405    struct tgsi_header *header,
1406    unsigned maxsize )
1407 {
1408    unsigned size = 0, i;
1409    struct tgsi_property *property;
1410
1411    if( maxsize <= size )
1412       return 0;
1413    property = (struct tgsi_property *) &tokens[size];
1414    size++;
1415
1416    *property = tgsi_build_property(
1417       full_prop->Property.PropertyName,
1418       header );
1419
1420    assert( full_prop->Property.NrTokens <= 8 + 1 );
1421
1422    for( i = 0; i < full_prop->Property.NrTokens - 1; i++ ) {
1423       struct tgsi_property_data *data;
1424
1425       if( maxsize <= size )
1426          return  0;
1427       data = (struct tgsi_property_data *) &tokens[size];
1428       size++;
1429
1430       *data = tgsi_build_property_data(
1431          full_prop->u[i].Data,
1432          property,
1433          header );
1434    }
1435
1436    return size;
1437 }
1438
1439 struct tgsi_full_src_register
1440 tgsi_full_src_register_from_dst(const struct tgsi_full_dst_register *dst)
1441 {
1442    struct tgsi_full_src_register src;
1443    src.Register = tgsi_default_src_register();
1444    src.Register.File = dst->Register.File;
1445    src.Register.Indirect = dst->Register.Indirect;
1446    src.Register.Dimension = dst->Register.Dimension;
1447    src.Register.Index = dst->Register.Index;
1448    src.Indirect = dst->Indirect;
1449    src.Dimension = dst->Dimension;
1450    src.DimIndirect = dst->DimIndirect;
1451    return src;
1452 }