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