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