src/gallium/include/pipe/p_shader_tokens.h

   1 /**************************************************************************
   2  *
   3  * Copyright 2008 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 #ifndef TGSI_TOKEN_H
  29 #define TGSI_TOKEN_H
  30
  31 #ifdef __cplusplus
  32 extern "C" {
  33 #endif
  34
  35 #include "p_compiler.h"
  36
  37 struct tgsi_version
  38 {
  39    unsigned MajorVersion  : 8;
  40    unsigned MinorVersion  : 8;
  41    unsigned Padding       : 16;
  42 };
  43
  44 struct tgsi_header
  45 {
  46    unsigned HeaderSize : 8;
  47    unsigned BodySize   : 24;
  48 };
  49
  50 #define TGSI_PROCESSOR_FRAGMENT  0
  51 #define TGSI_PROCESSOR_VERTEX    1
  52 #define TGSI_PROCESSOR_GEOMETRY  2
  53
  54 struct tgsi_processor
  55 {
  56    unsigned Processor  : 4;  /* TGSI_PROCESSOR_ */
  57    unsigned Padding    : 28;
  58 };
  59
  60 #define TGSI_TOKEN_TYPE_DECLARATION    0
  61 #define TGSI_TOKEN_TYPE_IMMEDIATE      1
  62 #define TGSI_TOKEN_TYPE_INSTRUCTION    2
  63
  64 struct tgsi_token
  65 {
  66    unsigned Type       : 4;  /* TGSI_TOKEN_TYPE_ */
  67    unsigned Size       : 8;  /* UINT */
  68    unsigned Padding    : 19;
  69    unsigned Extended   : 1;  /* BOOL */
  70 };
  71
  72 enum tgsi_file_type {
  73    TGSI_FILE_NULL        =0,
  74    TGSI_FILE_CONSTANT    =1,
  75    TGSI_FILE_INPUT       =2,
  76    TGSI_FILE_OUTPUT      =3,
  77    TGSI_FILE_TEMPORARY   =4,
  78    TGSI_FILE_SAMPLER     =5,
  79    TGSI_FILE_ADDRESS     =6,
  80    TGSI_FILE_IMMEDIATE   =7,
  81    TGSI_FILE_COUNT      /**< how many TGSI_FILE_ types */
  82 };
  83
  84
  85 #define TGSI_WRITEMASK_NONE     0x00
  86 #define TGSI_WRITEMASK_X        0x01
  87 #define TGSI_WRITEMASK_Y        0x02
  88 #define TGSI_WRITEMASK_XY       0x03
  89 #define TGSI_WRITEMASK_Z        0x04
  90 #define TGSI_WRITEMASK_XZ       0x05
  91 #define TGSI_WRITEMASK_YZ       0x06
  92 #define TGSI_WRITEMASK_XYZ      0x07
  93 #define TGSI_WRITEMASK_W        0x08
  94 #define TGSI_WRITEMASK_XW       0x09
  95 #define TGSI_WRITEMASK_YW       0x0A
  96 #define TGSI_WRITEMASK_XYW      0x0B
  97 #define TGSI_WRITEMASK_ZW       0x0C
  98 #define TGSI_WRITEMASK_XZW      0x0D
  99 #define TGSI_WRITEMASK_YZW      0x0E
 100 #define TGSI_WRITEMASK_XYZW     0x0F
 101
 102 #define TGSI_INTERPOLATE_CONSTANT      0
 103 #define TGSI_INTERPOLATE_LINEAR        1
 104 #define TGSI_INTERPOLATE_PERSPECTIVE   2
 105 #define TGSI_INTERPOLATE_COUNT         3
 106
 107 struct tgsi_declaration
 108 {
 109    unsigned Type        : 4;  /* TGSI_TOKEN_TYPE_DECLARATION */
 110    unsigned Size        : 8;  /* UINT */
 111    unsigned File        : 4;  /* one of TGSI_FILE_x */
 112    unsigned UsageMask   : 4;  /* bitmask of TGSI_WRITEMASK_x flags */
 113    unsigned Interpolate : 4;  /* TGSI_INTERPOLATE_ */
 114    unsigned Semantic    : 1;  /* BOOL, any semantic info? */
 115    unsigned Padding     : 6;
 116    unsigned Extended    : 1;  /* BOOL */
 117 };
 118
 119 struct tgsi_declaration_range
 120 {
 121    unsigned First   : 16; /* UINT */
 122    unsigned Last    : 16; /* UINT */
 123 };
 124
 125 #define TGSI_SEMANTIC_POSITION 0
 126 #define TGSI_SEMANTIC_COLOR    1
 127 #define TGSI_SEMANTIC_BCOLOR   2 /**< back-face color */
 128 #define TGSI_SEMANTIC_FOG      3
 129 #define TGSI_SEMANTIC_PSIZE    4
 130 #define TGSI_SEMANTIC_GENERIC  5
 131 #define TGSI_SEMANTIC_NORMAL   6
 132 #define TGSI_SEMANTIC_COUNT    7 /**< number of semantic values */
 133
 134 struct tgsi_declaration_semantic
 135 {
 136    unsigned SemanticName   : 8;  /* one of TGSI_SEMANTIC_ */
 137    unsigned SemanticIndex  : 16; /* UINT */
 138    unsigned Padding        : 8;
 139 };
 140
 141 #define TGSI_IMM_FLOAT32   0
 142
 143 struct tgsi_immediate
 144 {
 145    unsigned Type       : 4;  /* TGSI_TOKEN_TYPE_IMMEDIATE */
 146    unsigned Size       : 8;  /* UINT */
 147    unsigned DataType   : 4;  /* TGSI_IMM_ */
 148    unsigned Padding    : 15;
 149    unsigned Extended   : 1;  /* BOOL */
 150 };
 151
 152 struct tgsi_immediate_float32
 153 {
 154    float Float;
 155 };
 156
 157 /*
 158  * GL_NV_vertex_program
 159  */
 160 #define TGSI_OPCODE_ARL                 0
 161 #define TGSI_OPCODE_MOV                 1
 162 #define TGSI_OPCODE_LIT                 2
 163 #define TGSI_OPCODE_RCP                 3
 164 #define TGSI_OPCODE_RSQ                 4
 165 #define TGSI_OPCODE_EXP                 5
 166 #define TGSI_OPCODE_LOG                 6
 167 #define TGSI_OPCODE_MUL                 7
 168 #define TGSI_OPCODE_ADD                 8
 169 #define TGSI_OPCODE_DP3                 9
 170 #define TGSI_OPCODE_DP4                 10
 171 #define TGSI_OPCODE_DST                 11
 172 #define TGSI_OPCODE_MIN                 12
 173 #define TGSI_OPCODE_MAX                 13
 174 #define TGSI_OPCODE_SLT                 14
 175 #define TGSI_OPCODE_SGE                 15
 176 #define TGSI_OPCODE_MAD                 16
 177
 178 /*
 179  * GL_ATI_fragment_shader
 180  */
 181 #define TGSI_OPCODE_SUB                 17
 182 #define TGSI_OPCODE_DOT3                TGSI_OPCODE_DP3
 183 #define TGSI_OPCODE_DOT4                TGSI_OPCODE_DP4
 184 #define TGSI_OPCODE_LERP                18
 185 #define TGSI_OPCODE_CND                 19
 186 #define TGSI_OPCODE_CND0                20
 187 #define TGSI_OPCODE_DOT2ADD             21
 188
 189 /*
 190  * GL_EXT_vertex_shader
 191  */
 192 #define TGSI_OPCODE_INDEX               22
 193 #define TGSI_OPCODE_NEGATE              23
 194 #define TGSI_OPCODE_MADD                TGSI_OPCODE_MAD
 195 #define TGSI_OPCODE_FRAC                24
 196 #define TGSI_OPCODE_SETGE               TGSI_OPCODE_SGE
 197 #define TGSI_OPCODE_SETLT               TGSI_OPCODE_SLT
 198 #define TGSI_OPCODE_CLAMP               25
 199 #define TGSI_OPCODE_FLOOR               26
 200 #define TGSI_OPCODE_ROUND               27
 201 #define TGSI_OPCODE_EXPBASE2            28
 202 #define TGSI_OPCODE_LOGBASE2            29
 203 #define TGSI_OPCODE_POWER               30
 204 #define TGSI_OPCODE_RECIP               TGSI_OPCODE_RCP
 205 #define TGSI_OPCODE_RECIPSQRT           TGSI_OPCODE_RSQ
 206 #define TGSI_OPCODE_CROSSPRODUCT        31
 207 #define TGSI_OPCODE_MULTIPLYMATRIX      32
 208
 209 /*
 210  * GL_NV_vertex_program1_1
 211  */
 212 #define TGSI_OPCODE_ABS                 33
 213 #define TGSI_OPCODE_RCC                 34
 214 #define TGSI_OPCODE_DPH                 35
 215
 216 /*
 217  * GL_NV_fragment_program
 218  */
 219 #define TGSI_OPCODE_COS                 36
 220 #define TGSI_OPCODE_DDX                 37
 221 #define TGSI_OPCODE_DDY                 38
 222 #define TGSI_OPCODE_EX2                 TGSI_OPCODE_EXPBASE2
 223 #define TGSI_OPCODE_FLR                 TGSI_OPCODE_FLOOR
 224 #define TGSI_OPCODE_FRC                 TGSI_OPCODE_FRAC
 225 #define TGSI_OPCODE_KILP                39  /* predicated kill */
 226 #define TGSI_OPCODE_LG2                 TGSI_OPCODE_LOGBASE2
 227 #define TGSI_OPCODE_LRP                 TGSI_OPCODE_LERP
 228 #define TGSI_OPCODE_PK2H                40
 229 #define TGSI_OPCODE_PK2US               41
 230 #define TGSI_OPCODE_PK4B                42
 231 #define TGSI_OPCODE_PK4UB               43
 232 #define TGSI_OPCODE_POW                 TGSI_OPCODE_POWER
 233 #define TGSI_OPCODE_RFL                 44
 234 #define TGSI_OPCODE_SEQ                 45
 235 #define TGSI_OPCODE_SFL                 46
 236 #define TGSI_OPCODE_SGT                 47
 237 #define TGSI_OPCODE_SIN                 48
 238 #define TGSI_OPCODE_SLE                 49
 239 #define TGSI_OPCODE_SNE                 50
 240 #define TGSI_OPCODE_STR                 51
 241 #define TGSI_OPCODE_TEX                 52
 242 #define TGSI_OPCODE_TXD                 53
 243 #define TGSI_OPCODE_TXP                 54
 244 #define TGSI_OPCODE_UP2H                55
 245 #define TGSI_OPCODE_UP2US               56
 246 #define TGSI_OPCODE_UP4B                57
 247 #define TGSI_OPCODE_UP4UB               58
 248 #define TGSI_OPCODE_X2D                 59
 249
 250 /*
 251  * GL_NV_vertex_program2
 252  */
 253 #define TGSI_OPCODE_ARA                 60
 254 #define TGSI_OPCODE_ARR                 61
 255 #define TGSI_OPCODE_BRA                 62
 256 #define TGSI_OPCODE_CAL                 63
 257 #define TGSI_OPCODE_RET                 64
 258 #define TGSI_OPCODE_SSG                 65
 259
 260 /*
 261  * GL_ARB_vertex_program
 262  */
 263 #define TGSI_OPCODE_SWZ                 118
 264 #define TGSI_OPCODE_XPD                 TGSI_OPCODE_CROSSPRODUCT
 265
 266 /*
 267  * GL_ARB_fragment_program
 268  */
 269 #define TGSI_OPCODE_CMP                 66
 270 #define TGSI_OPCODE_KIL                 116  /* conditional kill */
 271 #define TGSI_OPCODE_SCS                 67
 272 #define TGSI_OPCODE_TXB                 68
 273
 274 /*
 275  * GL_NV_fragment_program_option
 276  */
 277 /* No new opcode */
 278
 279 /*
 280  * GL_NV_fragment_program2
 281  */
 282 #define TGSI_OPCODE_NRM                 69
 283 #define TGSI_OPCODE_DIV                 70
 284 #define TGSI_OPCODE_DP2                 71
 285 #define TGSI_OPCODE_DP2A                TGSI_OPCODE_DOT2ADD
 286 #define TGSI_OPCODE_TXL                 72
 287 #define TGSI_OPCODE_BRK                 73
 288 #define TGSI_OPCODE_IF                  74
 289 #define TGSI_OPCODE_LOOP                75
 290 #define TGSI_OPCODE_REP                 76
 291 #define TGSI_OPCODE_ELSE                77
 292 #define TGSI_OPCODE_ENDIF               78
 293 #define TGSI_OPCODE_ENDLOOP             79
 294 #define TGSI_OPCODE_ENDREP              80
 295
 296 /*
 297  * GL_NV_vertex_program2_option
 298  */
 299
 300 /*
 301  * GL_NV_vertex_program3
 302  */
 303 #define TGSI_OPCODE_PUSHA               81
 304 #define TGSI_OPCODE_POPA                82
 305
 306 /*
 307  * GL_NV_gpu_program4
 308  */
 309 #define TGSI_OPCODE_CEIL                83
 310 #define TGSI_OPCODE_I2F                 84
 311 #define TGSI_OPCODE_NOT                 85
 312 #define TGSI_OPCODE_TRUNC               86
 313 #define TGSI_OPCODE_SHL                 87
 314 #define TGSI_OPCODE_SHR                 88
 315 #define TGSI_OPCODE_AND                 89
 316 #define TGSI_OPCODE_OR                  90
 317 #define TGSI_OPCODE_MOD                 91
 318 #define TGSI_OPCODE_XOR                 92
 319 #define TGSI_OPCODE_SAD                 93
 320 #define TGSI_OPCODE_TXF                 94
 321 #define TGSI_OPCODE_TXQ                 95
 322 #define TGSI_OPCODE_CONT                96
 323
 324 /*
 325  * GL_NV_vertex_program4
 326  */
 327 /* Same as GL_NV_gpu_program4 */
 328
 329 /*
 330  * GL_NV_fragment_program4
 331  */
 332 /* Same as GL_NV_gpu_program4 */
 333
 334 /*
 335  * GL_NV_geometry_program4
 336  */
 337 /* Same as GL_NV_gpu_program4 */
 338 #define TGSI_OPCODE_EMIT                97
 339 #define TGSI_OPCODE_ENDPRIM             98
 340
 341 /*
 342  * GLSL
 343  */
 344 #define TGSI_OPCODE_BGNLOOP2            99
 345 #define TGSI_OPCODE_BGNSUB              100
 346 #define TGSI_OPCODE_ENDLOOP2            101
 347 #define TGSI_OPCODE_ENDSUB              102
 348 #define TGSI_OPCODE_INT                 TGSI_OPCODE_TRUNC
 349 #define TGSI_OPCODE_NOISE1              103
 350 #define TGSI_OPCODE_NOISE2              104
 351 #define TGSI_OPCODE_NOISE3              105
 352 #define TGSI_OPCODE_NOISE4              106
 353 #define TGSI_OPCODE_NOP                 107
 354
 355 /*
 356  * ps_1_1
 357  */
 358 #define TGSI_OPCODE_TEXKILL             TGSI_OPCODE_KIL
 359
 360 /*
 361  * ps_1_2
 362  */
 363 /* CMP - use TGSI_OPCODE_CND0 */
 364
 365 /*
 366  * ps_1_3
 367  */
 368 /* CMP - use TGSI_OPCODE_CND0 */
 369
 370 /*
 371  * ps_1_4
 372  */
 373 #define TGSI_OPCODE_TEXLD               TGSI_OPCODE_TEX
 374
 375 /*
 376  * ps_2_0
 377  */
 378 #define TGSI_OPCODE_M4X4                TGSI_OPCODE_MULTIPLYMATRIX
 379 #define TGSI_OPCODE_M4X3                108
 380 #define TGSI_OPCODE_M3X4                109
 381 #define TGSI_OPCODE_M3X3                110
 382 #define TGSI_OPCODE_M3X2                111
 383 #define TGSI_OPCODE_CRS                 TGSI_OPCODE_XPD
 384 #define TGSI_OPCODE_NRM4                112
 385 #define TGSI_OPCODE_SINCOS              TGSI_OPCODE_SCS
 386 #define TGSI_OPCODE_TEXLDB              TGSI_OPCODE_TXB
 387 #define TGSI_OPCODE_DP2ADD              TGSI_OPCODE_DP2A
 388
 389 /*
 390  * ps_2_x
 391  */
 392 #define TGSI_OPCODE_CALL                TGSI_OPCODE_CAL
 393 #define TGSI_OPCODE_CALLNZ              113
 394 #define TGSI_OPCODE_IFC                 114
 395 #define TGSI_OPCODE_BREAK               TGSI_OPCODE_BRK
 396 #define TGSI_OPCODE_BREAKC              115
 397 #define TGSI_OPCODE_DSX                 TGSI_OPCODE_DDX
 398 #define TGSI_OPCODE_DSY                 TGSI_OPCODE_DDY
 399 #define TGSI_OPCODE_TEXLDD              TGSI_OPCODE_TXD
 400
 401 /*
 402  * vs_1_1
 403  */
 404 #define TGSI_OPCODE_EXPP                TGSI_OPCODE_EXP
 405 #define TGSI_OPCODE_LOGP                TGSI_OPCODE_LG2
 406
 407 /*
 408  * vs_2_0
 409  */
 410 #define TGSI_OPCODE_SGN                 TGSI_OPCODE_SSG
 411 #define TGSI_OPCODE_MOVA                TGSI_OPCODE_ARR
 412 /* EXPP - use TGSI_OPCODE_EX2 */
 413
 414 /*
 415  * vs_2_x
 416  */
 417
 418 #define TGSI_OPCODE_END                 117  /* aka HALT */
 419
 420 #define TGSI_OPCODE_LAST                119
 421
 422 #define TGSI_SAT_NONE            0  /* do not saturate */
 423 #define TGSI_SAT_ZERO_ONE        1  /* clamp to [0,1] */
 424 #define TGSI_SAT_MINUS_PLUS_ONE  2  /* clamp to [-1,1] */
 425
 426 /**
 427  * Opcode is the operation code to execute. A given operation defines the
 428  * semantics how the source registers (if any) are interpreted and what is
 429  * written to the destination registers (if any) as a result of execution.
 430  *
 431  * NumDstRegs and NumSrcRegs is the number of destination and source registers,
 432  * respectively. For a given operation code, those numbers are fixed and are
 433  * present here only for convenience.
 434  *
 435  * If Extended is TRUE, it is now executed.
 436  *
 437  * Saturate controls how are final results in destination registers modified.
 438  */
 439
 440 struct tgsi_instruction
 441 {
 442    unsigned Type       : 4;  /* TGSI_TOKEN_TYPE_INSTRUCTION */
 443    unsigned Size       : 8;  /* UINT */
 444    unsigned Opcode     : 8;  /* TGSI_OPCODE_ */
 445    unsigned Saturate   : 2;  /* TGSI_SAT_ */
 446    unsigned NumDstRegs : 2;  /* UINT */
 447    unsigned NumSrcRegs : 4;  /* UINT */
 448    unsigned Padding    : 3;
 449    unsigned Extended   : 1;  /* BOOL */
 450 };
 451
 452 /*
 453  * If tgsi_instruction::Extended is TRUE, tgsi_instruction_ext follows.
 454  *
 455  * Then, tgsi_instruction::NumDstRegs of tgsi_dst_register follow.
 456  *
 457  * Then, tgsi_instruction::NumSrcRegs of tgsi_src_register follow.
 458  *
 459  * tgsi_instruction::Size contains the total number of words that make the
 460  * instruction, including the instruction word.
 461  */
 462
 463 #define TGSI_INSTRUCTION_EXT_TYPE_NV        0
 464 #define TGSI_INSTRUCTION_EXT_TYPE_LABEL     1
 465 #define TGSI_INSTRUCTION_EXT_TYPE_TEXTURE   2
 466 #define TGSI_INSTRUCTION_EXT_TYPE_PREDICATE 3
 467
 468 struct tgsi_instruction_ext
 469 {
 470    unsigned Type       : 4;  /* TGSI_INSTRUCTION_EXT_TYPE_ */
 471    unsigned Padding    : 27;
 472    unsigned Extended   : 1;  /* BOOL */
 473 };
 474
 475 /*
 476  * If tgsi_instruction_ext::Type is TGSI_INSTRUCTION_EXT_TYPE_NV, it should
 477  * be cast to tgsi_instruction_ext_nv.
 478  *
 479  * If tgsi_instruction_ext::Type is TGSI_INSTRUCTION_EXT_TYPE_LABEL, it
 480  * should be cast to tgsi_instruction_ext_label.
 481  *
 482  * If tgsi_instruction_ext::Type is TGSI_INSTRUCTION_EXT_TYPE_TEXTURE, it
 483  * should be cast to tgsi_instruction_ext_texture.
 484  *
 485  * If tgsi_instruction_ext::Type is TGSI_INSTRUCTION_EXT_TYPE_PREDICATE, it
 486  * should be cast to tgsi_instruction_ext_predicate.
 487  *
 488  * If tgsi_instruction_ext::Extended is TRUE, another tgsi_instruction_ext
 489  * follows.
 490  */
 491
 492 #define TGSI_PRECISION_DEFAULT      0
 493 #define TGSI_PRECISION_FLOAT32      1
 494 #define TGSI_PRECISION_FLOAT16      2
 495 #define TGSI_PRECISION_FIXED12      3
 496
 497 #define TGSI_CC_GT      0
 498 #define TGSI_CC_EQ      1
 499 #define TGSI_CC_LT      2
 500 #define TGSI_CC_GE      3
 501 #define TGSI_CC_LE      4
 502 #define TGSI_CC_NE      5
 503 #define TGSI_CC_TR      6
 504 #define TGSI_CC_FL      7
 505
 506 #define TGSI_SWIZZLE_X      0
 507 #define TGSI_SWIZZLE_Y      1
 508 #define TGSI_SWIZZLE_Z      2
 509 #define TGSI_SWIZZLE_W      3
 510
 511 /**
 512  * Precision controls the precision at which the operation should be executed.
 513  *
 514  * CondDstUpdate enables condition code register writes. When this field is
 515  * TRUE, CondDstIndex specifies the index of the condition code register to
 516  * update.
 517  *
 518  * CondFlowEnable enables conditional execution of the operation. When this
 519  * field is TRUE, CondFlowIndex specifies the index of the condition code
 520  * register to test against CondMask with component swizzle controled by
 521  * CondSwizzleX, CondSwizzleY, CondSwizzleZ and CondSwizzleW. If the test fails,
 522  * the operation is not executed.
 523  */
 524
 525 struct tgsi_instruction_ext_nv
 526 {
 527    unsigned Type             : 4;    /* TGSI_INSTRUCTION_EXT_TYPE_NV */
 528    unsigned Precision        : 4;    /* TGSI_PRECISION_ */
 529    unsigned CondDstIndex     : 4;    /* UINT */
 530    unsigned CondFlowIndex    : 4;    /* UINT */
 531    unsigned CondMask         : 4;    /* TGSI_CC_ */
 532    unsigned CondSwizzleX     : 2;    /* TGSI_SWIZZLE_ */
 533    unsigned CondSwizzleY     : 2;    /* TGSI_SWIZZLE_ */
 534    unsigned CondSwizzleZ     : 2;    /* TGSI_SWIZZLE_ */
 535    unsigned CondSwizzleW     : 2;    /* TGSI_SWIZZLE_ */
 536    unsigned CondDstUpdate    : 1;    /* BOOL */
 537    unsigned CondFlowEnable   : 1;    /* BOOL */
 538    unsigned Padding          : 1;
 539    unsigned Extended         : 1;    /* BOOL */
 540 };
 541
 542 struct tgsi_instruction_ext_label
 543 {
 544    unsigned Type     : 4;    /* TGSI_INSTRUCTION_EXT_TYPE_LABEL */
 545    unsigned Label    : 24;   /* UINT */
 546    unsigned Padding  : 3;
 547    unsigned Extended : 1;    /* BOOL */
 548 };
 549
 550 #define TGSI_TEXTURE_UNKNOWN        0
 551 #define TGSI_TEXTURE_1D             1
 552 #define TGSI_TEXTURE_2D             2
 553 #define TGSI_TEXTURE_3D             3
 554 #define TGSI_TEXTURE_CUBE           4
 555 #define TGSI_TEXTURE_RECT           5
 556 #define TGSI_TEXTURE_SHADOW1D       6
 557 #define TGSI_TEXTURE_SHADOW2D       7
 558 #define TGSI_TEXTURE_SHADOWRECT     8
 559 #define TGSI_TEXTURE_COUNT          9
 560
 561 struct tgsi_instruction_ext_texture
 562 {
 563    unsigned Type     : 4;    /* TGSI_INSTRUCTION_EXT_TYPE_TEXTURE */
 564    unsigned Texture  : 8;    /* TGSI_TEXTURE_ */
 565    unsigned Padding  : 19;
 566    unsigned Extended : 1;    /* BOOL */
 567 };
 568
 569 struct tgsi_instruction_ext_predicate
 570 {
 571    unsigned Type             : 4;    /* TGSI_INSTRUCTION_EXT_TYPE_PREDICATE */
 572    unsigned PredDstIndex     : 4;    /* UINT */
 573    unsigned PredWriteMask    : 4;    /* TGSI_WRITEMASK_ */
 574    unsigned Padding          : 19;
 575    unsigned Extended         : 1;    /* BOOL */
 576 };
 577
 578 /**
 579  * File specifies the register array to access.
 580  *
 581  * Index specifies the element number of a register in the register file.
 582  *
 583  * If Indirect is TRUE, Index should be offset by the X component of a source
 584  * register that follows. The register can be now fetched into local storage
 585  * for further processing.
 586  *
 587  * If Negate is TRUE, all components of the fetched register are negated.
 588  *
 589  * The fetched register components are swizzled according to SwizzleX, SwizzleY,
 590  * SwizzleZ and SwizzleW.
 591  *
 592  * If Extended is TRUE, any further modifications to the source register are
 593  * made to this temporary storage.
 594  */
 595
 596 struct tgsi_src_register
 597 {
 598    unsigned File        : 4;  /* TGSI_FILE_ */
 599    unsigned SwizzleX    : 2;  /* TGSI_SWIZZLE_ */
 600    unsigned SwizzleY    : 2;  /* TGSI_SWIZZLE_ */
 601    unsigned SwizzleZ    : 2;  /* TGSI_SWIZZLE_ */
 602    unsigned SwizzleW    : 2;  /* TGSI_SWIZZLE_ */
 603    unsigned Negate      : 1;  /* BOOL */
 604    unsigned Indirect    : 1;  /* BOOL */
 605    unsigned Dimension   : 1;  /* BOOL */
 606    int      Index       : 16; /* SINT */
 607    unsigned Extended    : 1;  /* BOOL */
 608 };
 609
 610 /**
 611  * If tgsi_src_register::Extended is TRUE, tgsi_src_register_ext follows.
 612  *
 613  * Then, if tgsi_src_register::Indirect is TRUE, another tgsi_src_register
 614  * follows.
 615  *
 616  * Then, if tgsi_src_register::Dimension is TRUE, tgsi_dimension follows.
 617  */
 618
 619 #define TGSI_SRC_REGISTER_EXT_TYPE_SWZ      0
 620 #define TGSI_SRC_REGISTER_EXT_TYPE_MOD      1
 621
 622 struct tgsi_src_register_ext
 623 {
 624    unsigned Type     : 4;    /* TGSI_SRC_REGISTER_EXT_TYPE_ */
 625    unsigned Padding  : 27;
 626    unsigned Extended : 1;    /* BOOL */
 627 };
 628
 629 /**
 630  * If tgsi_src_register_ext::Type is TGSI_SRC_REGISTER_EXT_TYPE_SWZ,
 631  * it should be cast to tgsi_src_register_ext_swz.
 632  *
 633  * If tgsi_src_register_ext::Type is TGSI_SRC_REGISTER_EXT_TYPE_MOD,
 634  * it should be cast to tgsi_src_register_ext_mod.
 635  *
 636  * If tgsi_dst_register_ext::Extended is TRUE, another tgsi_dst_register_ext
 637  * follows.
 638  */
 639
 640 #define TGSI_EXTSWIZZLE_X       TGSI_SWIZZLE_X
 641 #define TGSI_EXTSWIZZLE_Y       TGSI_SWIZZLE_Y
 642 #define TGSI_EXTSWIZZLE_Z       TGSI_SWIZZLE_Z
 643 #define TGSI_EXTSWIZZLE_W       TGSI_SWIZZLE_W
 644 #define TGSI_EXTSWIZZLE_ZERO    4
 645 #define TGSI_EXTSWIZZLE_ONE     5
 646
 647 /**
 648  * ExtSwizzleX, ExtSwizzleY, ExtSwizzleZ and ExtSwizzleW swizzle the source
 649  * register in an extended manner.
 650  *
 651  * NegateX, NegateY, NegateZ and NegateW negate individual components of the
 652  * source register.
 653  *
 654  * NOTE: To simplify matter, if this token is present, the corresponding Swizzle
 655  *       and Negate fields in tgsi_src_register should be set to X,Y,Z,W
 656  *       and FALSE, respectively.
 657  */
 658
 659 struct tgsi_src_register_ext_swz
 660 {
 661    unsigned Type         : 4;    /* TGSI_SRC_REGISTER_EXT_TYPE_SWZ */
 662    unsigned ExtSwizzleX  : 4;    /* TGSI_EXTSWIZZLE_ */
 663    unsigned ExtSwizzleY  : 4;    /* TGSI_EXTSWIZZLE_ */
 664    unsigned ExtSwizzleZ  : 4;    /* TGSI_EXTSWIZZLE_ */
 665    unsigned ExtSwizzleW  : 4;    /* TGSI_EXTSWIZZLE_ */
 666    unsigned NegateX      : 1;    /* BOOL */
 667    unsigned NegateY      : 1;    /* BOOL */
 668    unsigned NegateZ      : 1;    /* BOOL */
 669    unsigned NegateW      : 1;    /* BOOL */
 670    unsigned Padding      : 7;
 671    unsigned Extended     : 1;    /* BOOL */
 672 };
 673
 674 /**
 675  * Extra src register modifiers
 676  *
 677  * If Complement is TRUE, the source register is modified by subtracting it
 678  * from 1.0.
 679  *
 680  * If Bias is TRUE, the source register is modified by subtracting 0.5 from it.
 681  *
 682  * If Scale2X is TRUE, the source register is modified by multiplying it by 2.0.
 683  *
 684  * If Absolute is TRUE, the source register is modified by removing the sign.
 685  *
 686  * If Negate is TRUE, the source register is modified by negating it.
 687  */
 688
 689 struct tgsi_src_register_ext_mod
 690 {
 691    unsigned Type         : 4;    /* TGSI_SRC_REGISTER_EXT_TYPE_MOD */
 692    unsigned Complement   : 1;    /* BOOL */
 693    unsigned Bias         : 1;    /* BOOL */
 694    unsigned Scale2X      : 1;    /* BOOL */
 695    unsigned Absolute     : 1;    /* BOOL */
 696    unsigned Negate       : 1;    /* BOOL */
 697    unsigned Padding      : 22;
 698    unsigned Extended     : 1;    /* BOOL */
 699 };
 700
 701 struct tgsi_dimension
 702 {
 703    unsigned Indirect    : 1;  /* BOOL */
 704    unsigned Dimension   : 1;  /* BOOL */
 705    unsigned Padding     : 13;
 706    int      Index       : 16; /* SINT */
 707    unsigned Extended    : 1;  /* BOOL */
 708 };
 709
 710 struct tgsi_dst_register
 711 {
 712    unsigned File        : 4;  /* TGSI_FILE_ */
 713    unsigned WriteMask   : 4;  /* TGSI_WRITEMASK_ */
 714    unsigned Indirect    : 1;  /* BOOL */
 715    unsigned Dimension   : 1;  /* BOOL */
 716    int      Index       : 16; /* SINT */
 717    unsigned Padding     : 5;
 718    unsigned Extended    : 1;  /* BOOL */
 719 };
 720
 721 /*
 722  * If tgsi_dst_register::Extended is TRUE, tgsi_dst_register_ext follows.
 723  *
 724  * Then, if tgsi_dst_register::Indirect is TRUE, tgsi_src_register follows.
 725  */
 726
 727 #define TGSI_DST_REGISTER_EXT_TYPE_CONDCODE     0
 728 #define TGSI_DST_REGISTER_EXT_TYPE_MODULATE     1
 729 #define TGSI_DST_REGISTER_EXT_TYPE_PREDICATE    2
 730
 731 struct tgsi_dst_register_ext
 732 {
 733    unsigned Type     : 4;    /* TGSI_DST_REGISTER_EXT_TYPE_ */
 734    unsigned Padding  : 27;
 735    unsigned Extended : 1;    /* BOOL */
 736 };
 737
 738 /**
 739  * Extra destination register modifiers
 740  *
 741  * If tgsi_dst_register_ext::Type is TGSI_DST_REGISTER_EXT_TYPE_CONDCODE,
 742  * it should be cast to tgsi_dst_register_ext_condcode.
 743  *
 744  * If tgsi_dst_register_ext::Type is TGSI_DST_REGISTER_EXT_TYPE_MODULATE,
 745  * it should be cast to tgsi_dst_register_ext_modulate.
 746  *
 747  * If tgsi_dst_register_ext::Type is TGSI_DST_REGISTER_EXT_TYPE_PREDICATE,
 748  * it should be cast to tgsi_dst_register_ext_predicate.
 749  *
 750  * If tgsi_dst_register_ext::Extended is TRUE, another tgsi_dst_register_ext
 751  * follows.
 752  */
 753 struct tgsi_dst_register_ext_concode
 754 {
 755    unsigned Type         : 4;    /* TGSI_DST_REGISTER_EXT_TYPE_CONDCODE */
 756    unsigned CondMask     : 4;    /* TGSI_CC_ */
 757    unsigned CondSwizzleX : 2;    /* TGSI_SWIZZLE_ */
 758    unsigned CondSwizzleY : 2;    /* TGSI_SWIZZLE_ */
 759    unsigned CondSwizzleZ : 2;    /* TGSI_SWIZZLE_ */
 760    unsigned CondSwizzleW : 2;    /* TGSI_SWIZZLE_ */
 761    unsigned CondSrcIndex : 4;    /* UINT */
 762    unsigned Padding      : 11;
 763    unsigned Extended     : 1;    /* BOOL */
 764 };
 765
 766 #define TGSI_MODULATE_1X        0
 767 #define TGSI_MODULATE_2X        1
 768 #define TGSI_MODULATE_4X        2
 769 #define TGSI_MODULATE_8X        3
 770 #define TGSI_MODULATE_HALF      4
 771 #define TGSI_MODULATE_QUARTER   5
 772 #define TGSI_MODULATE_EIGHTH    6
 773 #define TGSI_MODULATE_COUNT     7
 774
 775 struct tgsi_dst_register_ext_modulate
 776 {
 777    unsigned Type     : 4;    /* TGSI_DST_REGISTER_EXT_TYPE_MODULATE */
 778    unsigned Modulate : 4;    /* TGSI_MODULATE_ */
 779    unsigned Padding  : 23;
 780    unsigned Extended : 1;    /* BOOL */
 781 };
 782
 783 /*
 784  * Currently, the following constraints apply.
 785  *
 786  * - PredSwizzleXYZW is either set to identity or replicate.
 787  * - PredSrcIndex is 0.
 788  */
 789
 790 struct tgsi_dst_register_ext_predicate
 791 {
 792    unsigned Type         : 4;    /* TGSI_DST_REGISTER_EXT_TYPE_PREDICATE */
 793    unsigned PredSwizzleX : 2;    /* TGSI_SWIZZLE_ */
 794    unsigned PredSwizzleY : 2;    /* TGSI_SWIZZLE_ */
 795    unsigned PredSwizzleZ : 2;    /* TGSI_SWIZZLE_ */
 796    unsigned PredSwizzleW : 2;    /* TGSI_SWIZZLE_ */
 797    unsigned PredSrcIndex : 4;    /* UINT */
 798    unsigned Negate       : 1;    /* BOOL */
 799    unsigned Padding      : 14;
 800    unsigned Extended     : 1;    /* BOOL */
 801 };
 802
 803
 804 #ifdef __cplusplus
 805 }
 806 #endif
 807
 808 #endif /* TGSI_TOKEN_H */
 809