src/gallium/include/pipe/p_shader_tokens.h

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