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,
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  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.
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  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_x */
  67    unsigned NrTokens   : 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 NrTokens    : 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;  /**< one of TGSI_INTERPOLATE_x */
 114    unsigned Semantic    : 1;  /**< BOOL, any semantic info? */
 115    unsigned Centroid    : 1;  /**< centroid sampling? */
 116    unsigned Invariant   : 1;  /**< invariant optimization? */
 117    unsigned Padding     : 4;
 118    unsigned Extended    : 1;  /**< BOOL */
 119 };
 120
 121 struct tgsi_declaration_range
 122 {
 123    unsigned First   : 16; /**< UINT */
 124    unsigned Last    : 16; /**< UINT */
 125 };
 126
 127 #define TGSI_SEMANTIC_POSITION 0
 128 #define TGSI_SEMANTIC_COLOR    1
 129 #define TGSI_SEMANTIC_BCOLOR   2 /**< back-face color */
 130 #define TGSI_SEMANTIC_FOG      3
 131 #define TGSI_SEMANTIC_PSIZE    4
 132 #define TGSI_SEMANTIC_GENERIC  5
 133 #define TGSI_SEMANTIC_NORMAL   6
 134 #define TGSI_SEMANTIC_FACE     7
 135 #define TGSI_SEMANTIC_COUNT    8 /**< number of semantic values */
 136
 137 struct tgsi_declaration_semantic
 138 {
 139    unsigned SemanticName   : 8;  /**< one of TGSI_SEMANTIC_x */
 140    unsigned SemanticIndex  : 16; /**< UINT */
 141    unsigned Padding        : 8;
 142 };
 143
 144 #define TGSI_IMM_FLOAT32   0
 145
 146 struct tgsi_immediate
 147 {
 148    unsigned Type       : 4;  /**< TGSI_TOKEN_TYPE_IMMEDIATE */
 149    unsigned NrTokens   : 8;  /**< UINT */
 150    unsigned DataType   : 4;  /**< one of TGSI_IMM_x */
 151    unsigned Padding    : 15;
 152    unsigned Extended   : 1;  /**< BOOL */
 153 };
 154
 155 struct tgsi_immediate_float32
 156 {
 157    float Float;
 158 };
 159
 160 /*
 161  * GL_NV_vertex_program
 162  */
 163 #define TGSI_OPCODE_ARL                 0
 164 #define TGSI_OPCODE_MOV                 1
 165 #define TGSI_OPCODE_LIT                 2
 166 #define TGSI_OPCODE_RCP                 3
 167 #define TGSI_OPCODE_RSQ                 4
 168 #define TGSI_OPCODE_EXP                 5
 169 #define TGSI_OPCODE_LOG                 6
 170 #define TGSI_OPCODE_MUL                 7
 171 #define TGSI_OPCODE_ADD                 8
 172 #define TGSI_OPCODE_DP3                 9
 173 #define TGSI_OPCODE_DP4                 10
 174 #define TGSI_OPCODE_DST                 11
 175 #define TGSI_OPCODE_MIN                 12
 176 #define TGSI_OPCODE_MAX                 13
 177 #define TGSI_OPCODE_SLT                 14
 178 #define TGSI_OPCODE_SGE                 15
 179 #define TGSI_OPCODE_MAD                 16
 180
 181 /*
 182  * GL_ATI_fragment_shader
 183  */
 184 #define TGSI_OPCODE_SUB                 17
 185 #define TGSI_OPCODE_DOT3                TGSI_OPCODE_DP3
 186 #define TGSI_OPCODE_DOT4                TGSI_OPCODE_DP4
 187 #define TGSI_OPCODE_LERP                18
 188 #define TGSI_OPCODE_CND                 19
 189 #define TGSI_OPCODE_CND0                20
 190 #define TGSI_OPCODE_DOT2ADD             21
 191
 192 /*
 193  * GL_EXT_vertex_shader
 194  */
 195 #define TGSI_OPCODE_INDEX               22   /* considered for removal */
 196 #define TGSI_OPCODE_NEGATE              23   /* considered for removal */
 197 #define TGSI_OPCODE_MADD                TGSI_OPCODE_MAD
 198 #define TGSI_OPCODE_FRAC                24
 199 #define TGSI_OPCODE_SETGE               TGSI_OPCODE_SGE
 200 #define TGSI_OPCODE_SETLT               TGSI_OPCODE_SLT
 201 #define TGSI_OPCODE_CLAMP               25
 202 #define TGSI_OPCODE_FLOOR               26
 203 #define TGSI_OPCODE_ROUND               27
 204 #define TGSI_OPCODE_EXPBASE2            28
 205 #define TGSI_OPCODE_LOGBASE2            29
 206 #define TGSI_OPCODE_POWER               30
 207 #define TGSI_OPCODE_RECIP               TGSI_OPCODE_RCP
 208 #define TGSI_OPCODE_RECIPSQRT           TGSI_OPCODE_RSQ
 209 #define TGSI_OPCODE_CROSSPRODUCT        31
 210 #define TGSI_OPCODE_MULTIPLYMATRIX      32   /* considered for removal */
 211
 212 /*
 213  * GL_NV_vertex_program1_1
 214  */
 215 #define TGSI_OPCODE_ABS                 33
 216 #define TGSI_OPCODE_RCC                 34
 217 #define TGSI_OPCODE_DPH                 35
 218
 219 /*
 220  * GL_NV_fragment_program
 221  */
 222 #define TGSI_OPCODE_COS                 36
 223 #define TGSI_OPCODE_DDX                 37
 224 #define TGSI_OPCODE_DDY                 38
 225 #define TGSI_OPCODE_EX2                 TGSI_OPCODE_EXPBASE2
 226 #define TGSI_OPCODE_FLR                 TGSI_OPCODE_FLOOR
 227 #define TGSI_OPCODE_FRC                 TGSI_OPCODE_FRAC
 228 #define TGSI_OPCODE_KILP                39  /* predicated kill */
 229 #define TGSI_OPCODE_LG2                 TGSI_OPCODE_LOGBASE2
 230 #define TGSI_OPCODE_LRP                 TGSI_OPCODE_LERP
 231 #define TGSI_OPCODE_PK2H                40
 232 #define TGSI_OPCODE_PK2US               41
 233 #define TGSI_OPCODE_PK4B                42
 234 #define TGSI_OPCODE_PK4UB               43
 235 #define TGSI_OPCODE_POW                 TGSI_OPCODE_POWER
 236 #define TGSI_OPCODE_RFL                 44
 237 #define TGSI_OPCODE_SEQ                 45
 238 #define TGSI_OPCODE_SFL                 46
 239 #define TGSI_OPCODE_SGT                 47
 240 #define TGSI_OPCODE_SIN                 48
 241 #define TGSI_OPCODE_SLE                 49
 242 #define TGSI_OPCODE_SNE                 50
 243 #define TGSI_OPCODE_STR                 51
 244 #define TGSI_OPCODE_TEX                 52
 245 #define TGSI_OPCODE_TXD                 53
 246 #define TGSI_OPCODE_TXP                 54
 247 #define TGSI_OPCODE_UP2H                55
 248 #define TGSI_OPCODE_UP2US               56
 249 #define TGSI_OPCODE_UP4B                57
 250 #define TGSI_OPCODE_UP4UB               58
 251 #define TGSI_OPCODE_X2D                 59
 252
 253 /*
 254  * GL_NV_vertex_program2
 255  */
 256 #define TGSI_OPCODE_ARA                 60
 257 #define TGSI_OPCODE_ARR                 61
 258 #define TGSI_OPCODE_BRA                 62
 259 #define TGSI_OPCODE_CAL                 63
 260 #define TGSI_OPCODE_RET                 64
 261 #define TGSI_OPCODE_SSG                 65
 262
 263 /*
 264  * GL_ARB_vertex_program
 265  */
 266 #define TGSI_OPCODE_SWZ                 118
 267 #define TGSI_OPCODE_XPD                 TGSI_OPCODE_CROSSPRODUCT
 268
 269 /*
 270  * GL_ARB_fragment_program
 271  */
 272 #define TGSI_OPCODE_CMP                 66
 273 #define TGSI_OPCODE_KIL                 116  /* conditional kill */
 274 #define TGSI_OPCODE_SCS                 67
 275 #define TGSI_OPCODE_TXB                 68
 276
 277 /*
 278  * GL_NV_fragment_program_option
 279  */
 280 /* No new opcode */
 281
 282 /*
 283  * GL_NV_fragment_program2
 284  */
 285 #define TGSI_OPCODE_NRM                 69
 286 #define TGSI_OPCODE_DIV                 70
 287 #define TGSI_OPCODE_DP2                 71
 288 #define TGSI_OPCODE_DP2A                TGSI_OPCODE_DOT2ADD
 289 #define TGSI_OPCODE_TXL                 72
 290 #define TGSI_OPCODE_BRK                 73
 291 #define TGSI_OPCODE_IF                  74
 292 #define TGSI_OPCODE_LOOP                75
 293 #define TGSI_OPCODE_REP                 76
 294 #define TGSI_OPCODE_ELSE                77
 295 #define TGSI_OPCODE_ENDIF               78
 296 #define TGSI_OPCODE_ENDLOOP             79
 297 #define TGSI_OPCODE_ENDREP              80
 298
 299 /*
 300  * GL_NV_vertex_program2_option
 301  */
 302
 303 /*
 304  * GL_NV_vertex_program3
 305  */
 306 #define TGSI_OPCODE_PUSHA               81
 307 #define TGSI_OPCODE_POPA                82
 308
 309 /*
 310  * GL_NV_gpu_program4
 311  */
 312 #define TGSI_OPCODE_CEIL                83
 313 #define TGSI_OPCODE_I2F                 84
 314 #define TGSI_OPCODE_NOT                 85
 315 #define TGSI_OPCODE_TRUNC               86
 316 #define TGSI_OPCODE_SHL                 87
 317 #define TGSI_OPCODE_SHR                 88
 318 #define TGSI_OPCODE_AND                 89
 319 #define TGSI_OPCODE_OR                  90
 320 #define TGSI_OPCODE_MOD                 91
 321 #define TGSI_OPCODE_XOR                 92
 322 #define TGSI_OPCODE_SAD                 93
 323 #define TGSI_OPCODE_TXF                 94
 324 #define TGSI_OPCODE_TXQ                 95
 325 #define TGSI_OPCODE_CONT                96
 326
 327 /*
 328  * GL_NV_vertex_program4
 329  */
 330 /* Same as GL_NV_gpu_program4 */
 331
 332 /*
 333  * GL_NV_fragment_program4
 334  */
 335 /* Same as GL_NV_gpu_program4 */
 336
 337 /*
 338  * GL_NV_geometry_program4
 339  */
 340 /* Same as GL_NV_gpu_program4 */
 341 #define TGSI_OPCODE_EMIT                97
 342 #define TGSI_OPCODE_ENDPRIM             98
 343
 344 /*
 345  * GLSL
 346  */
 347 #define TGSI_OPCODE_BGNLOOP2            99
 348 #define TGSI_OPCODE_BGNSUB              100
 349 #define TGSI_OPCODE_ENDLOOP2            101
 350 #define TGSI_OPCODE_ENDSUB              102
 351 #define TGSI_OPCODE_INT                 TGSI_OPCODE_TRUNC
 352 #define TGSI_OPCODE_NOISE1              103
 353 #define TGSI_OPCODE_NOISE2              104
 354 #define TGSI_OPCODE_NOISE3              105
 355 #define TGSI_OPCODE_NOISE4              106
 356 #define TGSI_OPCODE_NOP                 107
 357
 358 /*
 359  * ps_1_1
 360  */
 361 #define TGSI_OPCODE_TEXKILL             TGSI_OPCODE_KIL
 362
 363 /*
 364  * ps_1_2
 365  */
 366 /* CMP - use TGSI_OPCODE_CND0 */
 367
 368 /*
 369  * ps_1_3
 370  */
 371 /* CMP - use TGSI_OPCODE_CND0 */
 372
 373 /*
 374  * ps_1_4
 375  */
 376 #define TGSI_OPCODE_TEXLD               TGSI_OPCODE_TEX
 377
 378 /*
 379  * ps_2_0
 380  */
 381 #define TGSI_OPCODE_M4X4                TGSI_OPCODE_MULTIPLYMATRIX
 382 #define TGSI_OPCODE_M4X3                108
 383 #define TGSI_OPCODE_M3X4                109
 384 #define TGSI_OPCODE_M3X3                110
 385 #define TGSI_OPCODE_M3X2                111
 386 #define TGSI_OPCODE_CRS                 TGSI_OPCODE_XPD
 387 #define TGSI_OPCODE_NRM4                112
 388 #define TGSI_OPCODE_SINCOS              TGSI_OPCODE_SCS
 389 #define TGSI_OPCODE_TEXLDB              TGSI_OPCODE_TXB
 390 #define TGSI_OPCODE_DP2ADD              TGSI_OPCODE_DP2A
 391
 392 /*
 393  * ps_2_x
 394  */
 395 #define TGSI_OPCODE_CALL                TGSI_OPCODE_CAL
 396 #define TGSI_OPCODE_CALLNZ              113
 397 #define TGSI_OPCODE_IFC                 114
 398 #define TGSI_OPCODE_BREAK               TGSI_OPCODE_BRK
 399 #define TGSI_OPCODE_BREAKC              115
 400 #define TGSI_OPCODE_DSX                 TGSI_OPCODE_DDX
 401 #define TGSI_OPCODE_DSY                 TGSI_OPCODE_DDY
 402 #define TGSI_OPCODE_TEXLDD              TGSI_OPCODE_TXD
 403
 404 /*
 405  * vs_1_1
 406  */
 407 #define TGSI_OPCODE_EXPP                TGSI_OPCODE_EXP
 408 #define TGSI_OPCODE_LOGP                TGSI_OPCODE_LG2
 409
 410 /*
 411  * vs_2_0
 412  */
 413 #define TGSI_OPCODE_SGN                 TGSI_OPCODE_SSG
 414 #define TGSI_OPCODE_MOVA                TGSI_OPCODE_ARR
 415 /* EXPP - use TGSI_OPCODE_EX2 */
 416
 417 /*
 418  * vs_2_x
 419  */
 420
 421 #define TGSI_OPCODE_END                 117  /* aka HALT */
 422
 423 #define TGSI_OPCODE_LAST                119
 424
 425 #define TGSI_SAT_NONE            0  /* do not saturate */
 426 #define TGSI_SAT_ZERO_ONE        1  /* clamp to [0,1] */
 427 #define TGSI_SAT_MINUS_PLUS_ONE  2  /* clamp to [-1,1] */
 428
 429 /**
 430  * Opcode is the operation code to execute. A given operation defines the
 431  * semantics how the source registers (if any) are interpreted and what is
 432  * written to the destination registers (if any) as a result of execution.
 433  *
 434  * NumDstRegs and NumSrcRegs is the number of destination and source registers,
 435  * respectively. For a given operation code, those numbers are fixed and are
 436  * present here only for convenience.
 437  *
 438  * If Extended is TRUE, it is now executed.
 439  *
 440  * Saturate controls how are final results in destination registers modified.
 441  */
 442
 443 struct tgsi_instruction
 444 {
 445    unsigned Type       : 4;  /* TGSI_TOKEN_TYPE_INSTRUCTION */
 446    unsigned NrTokens   : 8;  /* UINT */
 447    unsigned Opcode     : 8;  /* TGSI_OPCODE_ */
 448    unsigned Saturate   : 2;  /* TGSI_SAT_ */
 449    unsigned NumDstRegs : 2;  /* UINT */
 450    unsigned NumSrcRegs : 4;  /* UINT */
 451    unsigned Padding    : 3;
 452    unsigned Extended   : 1;  /* BOOL */
 453 };
 454
 455 /*
 456  * If tgsi_instruction::Extended is TRUE, tgsi_instruction_ext follows.
 457  *
 458  * Then, tgsi_instruction::NumDstRegs of tgsi_dst_register follow.
 459  *
 460  * Then, tgsi_instruction::NumSrcRegs of tgsi_src_register follow.
 461  *
 462  * tgsi_instruction::NrTokens contains the total number of words that make the
 463  * instruction, including the instruction word.
 464  */
 465
 466 #define TGSI_INSTRUCTION_EXT_TYPE_NV        0
 467 #define TGSI_INSTRUCTION_EXT_TYPE_LABEL     1
 468 #define TGSI_INSTRUCTION_EXT_TYPE_TEXTURE   2
 469 #define TGSI_INSTRUCTION_EXT_TYPE_PREDICATE 3
 470
 471 struct tgsi_instruction_ext
 472 {
 473    unsigned Type       : 4;  /* TGSI_INSTRUCTION_EXT_TYPE_ */
 474    unsigned Padding    : 27;
 475    unsigned Extended   : 1;  /* BOOL */
 476 };
 477
 478 /*
 479  * If tgsi_instruction_ext::Type is TGSI_INSTRUCTION_EXT_TYPE_NV, it should
 480  * be cast to tgsi_instruction_ext_nv.
 481  *
 482  * If tgsi_instruction_ext::Type is TGSI_INSTRUCTION_EXT_TYPE_LABEL, it
 483  * should be cast to tgsi_instruction_ext_label.
 484  *
 485  * If tgsi_instruction_ext::Type is TGSI_INSTRUCTION_EXT_TYPE_TEXTURE, it
 486  * should be cast to tgsi_instruction_ext_texture.
 487  *
 488  * If tgsi_instruction_ext::Type is TGSI_INSTRUCTION_EXT_TYPE_PREDICATE, it
 489  * should be cast to tgsi_instruction_ext_predicate.
 490  *
 491  * If tgsi_instruction_ext::Extended is TRUE, another tgsi_instruction_ext
 492  * follows.
 493  */
 494
 495 #define TGSI_PRECISION_DEFAULT      0
 496 #define TGSI_PRECISION_FLOAT32      1
 497 #define TGSI_PRECISION_FLOAT16      2
 498 #define TGSI_PRECISION_FIXED12      3
 499
 500 #define TGSI_CC_GT      0
 501 #define TGSI_CC_EQ      1
 502 #define TGSI_CC_LT      2
 503 #define TGSI_CC_GE      3
 504 #define TGSI_CC_LE      4
 505 #define TGSI_CC_NE      5
 506 #define TGSI_CC_TR      6
 507 #define TGSI_CC_FL      7
 508
 509 #define TGSI_SWIZZLE_X      0
 510 #define TGSI_SWIZZLE_Y      1
 511 #define TGSI_SWIZZLE_Z      2
 512 #define TGSI_SWIZZLE_W      3
 513
 514 /**
 515  * Precision controls the precision at which the operation should be executed.
 516  *
 517  * CondDstUpdate enables condition code register writes. When this field is
 518  * TRUE, CondDstIndex specifies the index of the condition code register to
 519  * update.
 520  *
 521  * CondFlowEnable enables conditional execution of the operation. When this
 522  * field is TRUE, CondFlowIndex specifies the index of the condition code
 523  * register to test against CondMask with component swizzle controled by
 524  * CondSwizzleX, CondSwizzleY, CondSwizzleZ and CondSwizzleW. If the test fails,
 525  * the operation is not executed.
 526  */
 527
 528 struct tgsi_instruction_ext_nv
 529 {
 530    unsigned Type             : 4;    /* TGSI_INSTRUCTION_EXT_TYPE_NV */
 531    unsigned Precision        : 4;    /* TGSI_PRECISION_ */
 532    unsigned CondDstIndex     : 4;    /* UINT */
 533    unsigned CondFlowIndex    : 4;    /* UINT */
 534    unsigned CondMask         : 4;    /* TGSI_CC_ */
 535    unsigned CondSwizzleX     : 2;    /* TGSI_SWIZZLE_ */
 536    unsigned CondSwizzleY     : 2;    /* TGSI_SWIZZLE_ */
 537    unsigned CondSwizzleZ     : 2;    /* TGSI_SWIZZLE_ */
 538    unsigned CondSwizzleW     : 2;    /* TGSI_SWIZZLE_ */
 539    unsigned CondDstUpdate    : 1;    /* BOOL */
 540    unsigned CondFlowEnable   : 1;    /* BOOL */
 541    unsigned Padding          : 1;
 542    unsigned Extended         : 1;    /* BOOL */
 543 };
 544
 545 struct tgsi_instruction_ext_label
 546 {
 547    unsigned Type     : 4;    /* TGSI_INSTRUCTION_EXT_TYPE_LABEL */
 548    unsigned Label    : 24;   /* UINT */
 549    unsigned Padding  : 3;
 550    unsigned Extended : 1;    /* BOOL */
 551 };
 552
 553 #define TGSI_TEXTURE_UNKNOWN        0
 554 #define TGSI_TEXTURE_1D             1
 555 #define TGSI_TEXTURE_2D             2
 556 #define TGSI_TEXTURE_3D             3
 557 #define TGSI_TEXTURE_CUBE           4
 558 #define TGSI_TEXTURE_RECT           5
 559 #define TGSI_TEXTURE_SHADOW1D       6
 560 #define TGSI_TEXTURE_SHADOW2D       7
 561 #define TGSI_TEXTURE_SHADOWRECT     8
 562 #define TGSI_TEXTURE_COUNT          9
 563
 564 struct tgsi_instruction_ext_texture
 565 {
 566    unsigned Type     : 4;    /* TGSI_INSTRUCTION_EXT_TYPE_TEXTURE */
 567    unsigned Texture  : 8;    /* TGSI_TEXTURE_ */
 568    unsigned Padding  : 19;
 569    unsigned Extended : 1;    /* BOOL */
 570 };
 571
 572 struct tgsi_instruction_ext_predicate
 573 {
 574    unsigned Type             : 4;    /* TGSI_INSTRUCTION_EXT_TYPE_PREDICATE */
 575    unsigned PredDstIndex     : 4;    /* UINT */
 576    unsigned PredWriteMask    : 4;    /* TGSI_WRITEMASK_ */
 577    unsigned Padding          : 19;
 578    unsigned Extended         : 1;    /* BOOL */
 579 };
 580
 581 /**
 582  * File specifies the register array to access.
 583  *
 584  * Index specifies the element number of a register in the register file.
 585  *
 586  * If Indirect is TRUE, Index should be offset by the X component of a source
 587  * register that follows. The register can be now fetched into local storage
 588  * for further processing.
 589  *
 590  * If Negate is TRUE, all components of the fetched register are negated.
 591  *
 592  * The fetched register components are swizzled according to SwizzleX, SwizzleY,
 593  * SwizzleZ and SwizzleW.
 594  *
 595  * If Extended is TRUE, any further modifications to the source register are
 596  * made to this temporary storage.
 597  */
 598
 599 struct tgsi_src_register
 600 {
 601    unsigned File        : 4;  /* TGSI_FILE_ */
 602    unsigned SwizzleX    : 2;  /* TGSI_SWIZZLE_ */
 603    unsigned SwizzleY    : 2;  /* TGSI_SWIZZLE_ */
 604    unsigned SwizzleZ    : 2;  /* TGSI_SWIZZLE_ */
 605    unsigned SwizzleW    : 2;  /* TGSI_SWIZZLE_ */
 606    unsigned Negate      : 1;  /* BOOL */
 607    unsigned Indirect    : 1;  /* BOOL */
 608    unsigned Dimension   : 1;  /* BOOL */
 609    int      Index       : 16; /* SINT */
 610    unsigned Extended    : 1;  /* BOOL */
 611 };
 612
 613 /**
 614  * If tgsi_src_register::Extended is TRUE, tgsi_src_register_ext follows.
 615  *
 616  * Then, if tgsi_src_register::Indirect is TRUE, another tgsi_src_register
 617  * follows.
 618  *
 619  * Then, if tgsi_src_register::Dimension is TRUE, tgsi_dimension follows.
 620  */
 621
 622 #define TGSI_SRC_REGISTER_EXT_TYPE_SWZ      0
 623 #define TGSI_SRC_REGISTER_EXT_TYPE_MOD      1
 624
 625 struct tgsi_src_register_ext
 626 {
 627    unsigned Type     : 4;    /* TGSI_SRC_REGISTER_EXT_TYPE_ */
 628    unsigned Padding  : 27;
 629    unsigned Extended : 1;    /* BOOL */
 630 };
 631
 632 /**
 633  * If tgsi_src_register_ext::Type is TGSI_SRC_REGISTER_EXT_TYPE_SWZ,
 634  * it should be cast to tgsi_src_register_ext_swz.
 635  *
 636  * If tgsi_src_register_ext::Type is TGSI_SRC_REGISTER_EXT_TYPE_MOD,
 637  * it should be cast to tgsi_src_register_ext_mod.
 638  *
 639  * If tgsi_dst_register_ext::Extended is TRUE, another tgsi_dst_register_ext
 640  * follows.
 641  */
 642
 643 #define TGSI_EXTSWIZZLE_X       TGSI_SWIZZLE_X
 644 #define TGSI_EXTSWIZZLE_Y       TGSI_SWIZZLE_Y
 645 #define TGSI_EXTSWIZZLE_Z       TGSI_SWIZZLE_Z
 646 #define TGSI_EXTSWIZZLE_W       TGSI_SWIZZLE_W
 647 #define TGSI_EXTSWIZZLE_ZERO    4
 648 #define TGSI_EXTSWIZZLE_ONE     5
 649
 650 /**
 651  * ExtSwizzleX, ExtSwizzleY, ExtSwizzleZ and ExtSwizzleW swizzle the source
 652  * register in an extended manner.
 653  *
 654  * NegateX, NegateY, NegateZ and NegateW negate individual components of the
 655  * source register.
 656  *
 657  * NOTE: To simplify matter, if this token is present, the corresponding Swizzle
 658  *       and Negate fields in tgsi_src_register should be set to X,Y,Z,W
 659  *       and FALSE, respectively.
 660  */
 661
 662 struct tgsi_src_register_ext_swz
 663 {
 664    unsigned Type         : 4;    /* TGSI_SRC_REGISTER_EXT_TYPE_SWZ */
 665    unsigned ExtSwizzleX  : 4;    /* TGSI_EXTSWIZZLE_ */
 666    unsigned ExtSwizzleY  : 4;    /* TGSI_EXTSWIZZLE_ */
 667    unsigned ExtSwizzleZ  : 4;    /* TGSI_EXTSWIZZLE_ */
 668    unsigned ExtSwizzleW  : 4;    /* TGSI_EXTSWIZZLE_ */
 669    unsigned NegateX      : 1;    /* BOOL */
 670    unsigned NegateY      : 1;    /* BOOL */
 671    unsigned NegateZ      : 1;    /* BOOL */
 672    unsigned NegateW      : 1;    /* BOOL */
 673    unsigned Padding      : 7;
 674    unsigned Extended     : 1;    /* BOOL */
 675 };
 676
 677 /**
 678  * Extra src register modifiers
 679  *
 680  * If Complement is TRUE, the source register is modified by subtracting it
 681  * from 1.0.
 682  *
 683  * If Bias is TRUE, the source register is modified by subtracting 0.5 from it.
 684  *
 685  * If Scale2X is TRUE, the source register is modified by multiplying it by 2.0.
 686  *
 687  * If Absolute is TRUE, the source register is modified by removing the sign.
 688  *
 689  * If Negate is TRUE, the source register is modified by negating it.
 690  */
 691
 692 struct tgsi_src_register_ext_mod
 693 {
 694    unsigned Type         : 4;    /* TGSI_SRC_REGISTER_EXT_TYPE_MOD */
 695    unsigned Complement   : 1;    /* BOOL */
 696    unsigned Bias         : 1;    /* BOOL */
 697    unsigned Scale2X      : 1;    /* BOOL */
 698    unsigned Absolute     : 1;    /* BOOL */
 699    unsigned Negate       : 1;    /* BOOL */
 700    unsigned Padding      : 22;
 701    unsigned Extended     : 1;    /* BOOL */
 702 };
 703
 704 struct tgsi_dimension
 705 {
 706    unsigned Indirect    : 1;  /* BOOL */
 707    unsigned Dimension   : 1;  /* BOOL */
 708    unsigned Padding     : 13;
 709    int      Index       : 16; /* SINT */
 710    unsigned Extended    : 1;  /* BOOL */
 711 };
 712
 713 struct tgsi_dst_register
 714 {
 715    unsigned File        : 4;  /* TGSI_FILE_ */
 716    unsigned WriteMask   : 4;  /* TGSI_WRITEMASK_ */
 717    unsigned Indirect    : 1;  /* BOOL */
 718    unsigned Dimension   : 1;  /* BOOL */
 719    int      Index       : 16; /* SINT */
 720    unsigned Padding     : 5;
 721    unsigned Extended    : 1;  /* BOOL */
 722 };
 723
 724 /*
 725  * If tgsi_dst_register::Extended is TRUE, tgsi_dst_register_ext follows.
 726  *
 727  * Then, if tgsi_dst_register::Indirect is TRUE, tgsi_src_register follows.
 728  */
 729
 730 #define TGSI_DST_REGISTER_EXT_TYPE_CONDCODE     0
 731 #define TGSI_DST_REGISTER_EXT_TYPE_MODULATE     1
 732 #define TGSI_DST_REGISTER_EXT_TYPE_PREDICATE    2
 733
 734 struct tgsi_dst_register_ext
 735 {
 736    unsigned Type     : 4;    /* TGSI_DST_REGISTER_EXT_TYPE_ */
 737    unsigned Padding  : 27;
 738    unsigned Extended : 1;    /* BOOL */
 739 };
 740
 741 /**
 742  * Extra destination register modifiers
 743  *
 744  * If tgsi_dst_register_ext::Type is TGSI_DST_REGISTER_EXT_TYPE_CONDCODE,
 745  * it should be cast to tgsi_dst_register_ext_condcode.
 746  *
 747  * If tgsi_dst_register_ext::Type is TGSI_DST_REGISTER_EXT_TYPE_MODULATE,
 748  * it should be cast to tgsi_dst_register_ext_modulate.
 749  *
 750  * If tgsi_dst_register_ext::Type is TGSI_DST_REGISTER_EXT_TYPE_PREDICATE,
 751  * it should be cast to tgsi_dst_register_ext_predicate.
 752  *
 753  * If tgsi_dst_register_ext::Extended is TRUE, another tgsi_dst_register_ext
 754  * follows.
 755  */
 756 struct tgsi_dst_register_ext_concode
 757 {
 758    unsigned Type         : 4;    /* TGSI_DST_REGISTER_EXT_TYPE_CONDCODE */
 759    unsigned CondMask     : 4;    /* TGSI_CC_ */
 760    unsigned CondSwizzleX : 2;    /* TGSI_SWIZZLE_ */
 761    unsigned CondSwizzleY : 2;    /* TGSI_SWIZZLE_ */
 762    unsigned CondSwizzleZ : 2;    /* TGSI_SWIZZLE_ */
 763    unsigned CondSwizzleW : 2;    /* TGSI_SWIZZLE_ */
 764    unsigned CondSrcIndex : 4;    /* UINT */
 765    unsigned Padding      : 11;
 766    unsigned Extended     : 1;    /* BOOL */
 767 };
 768
 769 #define TGSI_MODULATE_1X        0
 770 #define TGSI_MODULATE_2X        1
 771 #define TGSI_MODULATE_4X        2
 772 #define TGSI_MODULATE_8X        3
 773 #define TGSI_MODULATE_HALF      4
 774 #define TGSI_MODULATE_QUARTER   5
 775 #define TGSI_MODULATE_EIGHTH    6
 776 #define TGSI_MODULATE_COUNT     7
 777
 778 struct tgsi_dst_register_ext_modulate
 779 {
 780    unsigned Type     : 4;    /* TGSI_DST_REGISTER_EXT_TYPE_MODULATE */
 781    unsigned Modulate : 4;    /* TGSI_MODULATE_ */
 782    unsigned Padding  : 23;
 783    unsigned Extended : 1;    /* BOOL */
 784 };
 785
 786 /*
 787  * Currently, the following constraints apply.
 788  *
 789  * - PredSwizzleXYZW is either set to identity or replicate.
 790  * - PredSrcIndex is 0.
 791  */
 792
 793 struct tgsi_dst_register_ext_predicate
 794 {
 795    unsigned Type         : 4;    /* TGSI_DST_REGISTER_EXT_TYPE_PREDICATE */
 796    unsigned PredSwizzleX : 2;    /* TGSI_SWIZZLE_ */
 797    unsigned PredSwizzleY : 2;    /* TGSI_SWIZZLE_ */
 798    unsigned PredSwizzleZ : 2;    /* TGSI_SWIZZLE_ */
 799    unsigned PredSwizzleW : 2;    /* TGSI_SWIZZLE_ */
 800    unsigned PredSrcIndex : 4;    /* UINT */
 801    unsigned Negate       : 1;    /* BOOL */
 802    unsigned Padding      : 14;
 803    unsigned Extended     : 1;    /* BOOL */
 804 };
 805
 806
 807 #ifdef __cplusplus
 808 }
 809 #endif
 810
 811 #endif /* TGSI_TOKEN_H */
 812