src/gallium/include/pipe/p_shader_tokens.h

   1 /**************************************************************************
   2  *
   3  * Copyright 2008 VMware, Inc.
   4  * Copyright 2009-2010 VMware, Inc.
   5  * All Rights Reserved.
   6  *
   7  * Permission is hereby granted, free of charge, to any person obtaining a
   8  * copy of this software and associated documentation files (the
   9  * "Software"), to deal in the Software without restriction, including
  10  * without limitation the rights to use, copy, modify, merge, publish,
  11  * distribute, sub license, and/or sell copies of the Software, and to
  12  * permit persons to whom the Software is furnished to do so, subject to
  13  * the following conditions:
  14  *
  15  * The above copyright notice and this permission notice (including the
  16  * next paragraph) shall be included in all copies or substantial portions
  17  * of the Software.
  18  *
  19  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
  20  * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  21  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
  22  * IN NO EVENT SHALL VMWARE AND/OR ITS SUPPLIERS BE LIABLE FOR
  23  * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
  24  * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
  25  * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  26  *
  27  **************************************************************************/
  28
  29 #ifndef P_SHADER_TOKENS_H
  30 #define P_SHADER_TOKENS_H
  31
  32 #ifdef __cplusplus
  33 extern "C" {
  34 #endif
  35
  36
  37 struct tgsi_header
  38 {
  39    unsigned HeaderSize : 8;
  40    unsigned BodySize   : 24;
  41 };
  42
  43 #define TGSI_PROCESSOR_FRAGMENT  0
  44 #define TGSI_PROCESSOR_VERTEX    1
  45 #define TGSI_PROCESSOR_GEOMETRY  2
  46 #define TGSI_PROCESSOR_COMPUTE   3
  47
  48 struct tgsi_processor
  49 {
  50    unsigned Processor  : 4;  /* TGSI_PROCESSOR_ */
  51    unsigned Padding    : 28;
  52 };
  53
  54 #define TGSI_TOKEN_TYPE_DECLARATION    0
  55 #define TGSI_TOKEN_TYPE_IMMEDIATE      1
  56 #define TGSI_TOKEN_TYPE_INSTRUCTION    2
  57 #define TGSI_TOKEN_TYPE_PROPERTY       3
  58
  59 struct tgsi_token
  60 {
  61    unsigned Type       : 4;  /**< TGSI_TOKEN_TYPE_x */
  62    unsigned NrTokens   : 8;  /**< UINT */
  63    unsigned Padding    : 20;
  64 };
  65
  66 enum tgsi_file_type {
  67    TGSI_FILE_NULL                =0,
  68    TGSI_FILE_CONSTANT            =1,
  69    TGSI_FILE_INPUT               =2,
  70    TGSI_FILE_OUTPUT              =3,
  71    TGSI_FILE_TEMPORARY           =4,
  72    TGSI_FILE_SAMPLER             =5,
  73    TGSI_FILE_ADDRESS             =6,
  74    TGSI_FILE_IMMEDIATE           =7,
  75    TGSI_FILE_PREDICATE           =8,
  76    TGSI_FILE_SYSTEM_VALUE        =9,
  77    TGSI_FILE_RESOURCE            =10,
  78    TGSI_FILE_SAMPLER_VIEW        =11,
  79    TGSI_FILE_COUNT      /**< how many TGSI_FILE_ types */
  80 };
  81
  82
  83 #define TGSI_WRITEMASK_NONE     0x00
  84 #define TGSI_WRITEMASK_X        0x01
  85 #define TGSI_WRITEMASK_Y        0x02
  86 #define TGSI_WRITEMASK_XY       0x03
  87 #define TGSI_WRITEMASK_Z        0x04
  88 #define TGSI_WRITEMASK_XZ       0x05
  89 #define TGSI_WRITEMASK_YZ       0x06
  90 #define TGSI_WRITEMASK_XYZ      0x07
  91 #define TGSI_WRITEMASK_W        0x08
  92 #define TGSI_WRITEMASK_XW       0x09
  93 #define TGSI_WRITEMASK_YW       0x0A
  94 #define TGSI_WRITEMASK_XYW      0x0B
  95 #define TGSI_WRITEMASK_ZW       0x0C
  96 #define TGSI_WRITEMASK_XZW      0x0D
  97 #define TGSI_WRITEMASK_YZW      0x0E
  98 #define TGSI_WRITEMASK_XYZW     0x0F
  99
 100 #define TGSI_INTERPOLATE_CONSTANT      0
 101 #define TGSI_INTERPOLATE_LINEAR        1
 102 #define TGSI_INTERPOLATE_PERSPECTIVE   2
 103 #define TGSI_INTERPOLATE_COLOR         3 /* special color case for smooth/flat */
 104 #define TGSI_INTERPOLATE_COUNT         4
 105
 106 #define TGSI_INTERPOLATE_LOC_CENTER    0
 107 #define TGSI_INTERPOLATE_LOC_CENTROID  1
 108 #define TGSI_INTERPOLATE_LOC_SAMPLE    2
 109 #define TGSI_INTERPOLATE_LOC_COUNT     3
 110
 111 #define TGSI_CYLINDRICAL_WRAP_X (1 << 0)
 112 #define TGSI_CYLINDRICAL_WRAP_Y (1 << 1)
 113 #define TGSI_CYLINDRICAL_WRAP_Z (1 << 2)
 114 #define TGSI_CYLINDRICAL_WRAP_W (1 << 3)
 115
 116 struct tgsi_declaration
 117 {
 118    unsigned Type        : 4;  /**< TGSI_TOKEN_TYPE_DECLARATION */
 119    unsigned NrTokens    : 8;  /**< UINT */
 120    unsigned File        : 4;  /**< one of TGSI_FILE_x */
 121    unsigned UsageMask   : 4;  /**< bitmask of TGSI_WRITEMASK_x flags */
 122    unsigned Dimension   : 1;  /**< any extra dimension info? */
 123    unsigned Semantic    : 1;  /**< BOOL, any semantic info? */
 124    unsigned Interpolate : 1;  /**< any interpolation info? */
 125    unsigned Invariant   : 1;  /**< invariant optimization? */
 126    unsigned Local       : 1;  /**< optimize as subroutine local variable? */
 127    unsigned Array       : 1;  /**< extra array info? */
 128    unsigned Padding     : 6;
 129 };
 130
 131 struct tgsi_declaration_range
 132 {
 133    unsigned First   : 16; /**< UINT */
 134    unsigned Last    : 16; /**< UINT */
 135 };
 136
 137 struct tgsi_declaration_dimension
 138 {
 139    unsigned Index2D:16; /**< UINT */
 140    unsigned Padding:16;
 141 };
 142
 143 struct tgsi_declaration_interp
 144 {
 145    unsigned Interpolate : 4;   /**< one of TGSI_INTERPOLATE_x */
 146    unsigned Location    : 2;   /**< one of TGSI_INTERPOLATE_LOC_x */
 147    unsigned CylindricalWrap:4; /**< TGSI_CYLINDRICAL_WRAP_x flags */
 148    unsigned Padding     : 22;
 149 };
 150
 151 #define TGSI_SEMANTIC_POSITION   0
 152 #define TGSI_SEMANTIC_COLOR      1
 153 #define TGSI_SEMANTIC_BCOLOR     2  /**< back-face color */
 154 #define TGSI_SEMANTIC_FOG        3
 155 #define TGSI_SEMANTIC_PSIZE      4
 156 #define TGSI_SEMANTIC_GENERIC    5
 157 #define TGSI_SEMANTIC_NORMAL     6
 158 #define TGSI_SEMANTIC_FACE       7
 159 #define TGSI_SEMANTIC_EDGEFLAG   8
 160 #define TGSI_SEMANTIC_PRIMID     9
 161 #define TGSI_SEMANTIC_INSTANCEID 10 /**< doesn't include start_instance */
 162 #define TGSI_SEMANTIC_VERTEXID   11
 163 #define TGSI_SEMANTIC_STENCIL    12
 164 #define TGSI_SEMANTIC_CLIPDIST   13
 165 #define TGSI_SEMANTIC_CLIPVERTEX 14
 166 #define TGSI_SEMANTIC_GRID_SIZE  15 /**< grid size in blocks */
 167 #define TGSI_SEMANTIC_BLOCK_ID   16 /**< id of the current block */
 168 #define TGSI_SEMANTIC_BLOCK_SIZE 17 /**< block size in threads */
 169 #define TGSI_SEMANTIC_THREAD_ID  18 /**< block-relative id of the current thread */
 170 #define TGSI_SEMANTIC_TEXCOORD   19 /**< texture or sprite coordinates */
 171 #define TGSI_SEMANTIC_PCOORD     20 /**< point sprite coordinate */
 172 #define TGSI_SEMANTIC_VIEWPORT_INDEX 21 /**< viewport index */
 173 #define TGSI_SEMANTIC_LAYER      22 /**< layer (rendertarget index) */
 174 #define TGSI_SEMANTIC_CULLDIST   23
 175 #define TGSI_SEMANTIC_SAMPLEID   24
 176 #define TGSI_SEMANTIC_SAMPLEPOS  25
 177 #define TGSI_SEMANTIC_SAMPLEMASK 26
 178 #define TGSI_SEMANTIC_INVOCATIONID 27
 179 #define TGSI_SEMANTIC_COUNT      28 /**< number of semantic values */
 180
 181 struct tgsi_declaration_semantic
 182 {
 183    unsigned Name           : 8;  /**< one of TGSI_SEMANTIC_x */
 184    unsigned Index          : 16; /**< UINT */
 185    unsigned Padding        : 8;
 186 };
 187
 188 struct tgsi_declaration_resource {
 189    unsigned Resource    : 8; /**< one of TGSI_TEXTURE_ */
 190    unsigned Raw         : 1;
 191    unsigned Writable    : 1;
 192    unsigned Padding     : 22;
 193 };
 194
 195 struct tgsi_declaration_sampler_view {
 196    unsigned Resource    : 8; /**< one of TGSI_TEXTURE_ */
 197    unsigned ReturnTypeX : 6; /**< one of enum pipe_type */
 198    unsigned ReturnTypeY : 6; /**< one of enum pipe_type */
 199    unsigned ReturnTypeZ : 6; /**< one of enum pipe_type */
 200    unsigned ReturnTypeW : 6; /**< one of enum pipe_type */
 201 };
 202
 203 struct tgsi_declaration_array {
 204    unsigned ArrayID : 10;
 205    unsigned Padding : 22;
 206 };
 207
 208 /*
 209  * Special resources that don't need to be declared.  They map to the
 210  * GLOBAL/LOCAL/PRIVATE/INPUT compute memory spaces.
 211  */
 212 #define TGSI_RESOURCE_GLOBAL    0x7fff
 213 #define TGSI_RESOURCE_LOCAL     0x7ffe
 214 #define TGSI_RESOURCE_PRIVATE   0x7ffd
 215 #define TGSI_RESOURCE_INPUT     0x7ffc
 216
 217 #define TGSI_IMM_FLOAT32   0
 218 #define TGSI_IMM_UINT32    1
 219 #define TGSI_IMM_INT32     2
 220
 221 struct tgsi_immediate
 222 {
 223    unsigned Type       : 4;  /**< TGSI_TOKEN_TYPE_IMMEDIATE */
 224    unsigned NrTokens   : 14; /**< UINT */
 225    unsigned DataType   : 4;  /**< one of TGSI_IMM_x */
 226    unsigned Padding    : 10;
 227 };
 228
 229 union tgsi_immediate_data
 230 {
 231    float Float;
 232    unsigned Uint;
 233    int Int;
 234 };
 235
 236 #define TGSI_PROPERTY_GS_INPUT_PRIM          0
 237 #define TGSI_PROPERTY_GS_OUTPUT_PRIM         1
 238 #define TGSI_PROPERTY_GS_MAX_OUTPUT_VERTICES 2
 239 #define TGSI_PROPERTY_FS_COORD_ORIGIN        3
 240 #define TGSI_PROPERTY_FS_COORD_PIXEL_CENTER  4
 241 #define TGSI_PROPERTY_FS_COLOR0_WRITES_ALL_CBUFS 5
 242 #define TGSI_PROPERTY_FS_DEPTH_LAYOUT        6
 243 #define TGSI_PROPERTY_VS_PROHIBIT_UCPS       7
 244 #define TGSI_PROPERTY_GS_INVOCATIONS         8
 245 #define TGSI_PROPERTY_VS_WINDOW_SPACE_POSITION 9
 246 #define TGSI_PROPERTY_COUNT                  10
 247
 248 struct tgsi_property {
 249    unsigned Type         : 4;  /**< TGSI_TOKEN_TYPE_PROPERTY */
 250    unsigned NrTokens     : 8;  /**< UINT */
 251    unsigned PropertyName : 8;  /**< one of TGSI_PROPERTY */
 252    unsigned Padding      : 12;
 253 };
 254
 255 #define TGSI_FS_COORD_ORIGIN_UPPER_LEFT 0
 256 #define TGSI_FS_COORD_ORIGIN_LOWER_LEFT 1
 257
 258 #define TGSI_FS_COORD_PIXEL_CENTER_HALF_INTEGER 0
 259 #define TGSI_FS_COORD_PIXEL_CENTER_INTEGER 1
 260
 261 #define TGSI_FS_DEPTH_LAYOUT_NONE         0
 262 #define TGSI_FS_DEPTH_LAYOUT_ANY          1
 263 #define TGSI_FS_DEPTH_LAYOUT_GREATER      2
 264 #define TGSI_FS_DEPTH_LAYOUT_LESS         3
 265 #define TGSI_FS_DEPTH_LAYOUT_UNCHANGED    4
 266
 267
 268 struct tgsi_property_data {
 269    unsigned Data;
 270 };
 271
 272 /* TGSI opcodes.
 273  *
 274  * For more information on semantics of opcodes and
 275  * which APIs are known to use which opcodes, see
 276  * gallium/docs/source/tgsi.rst
 277  */
 278 #define TGSI_OPCODE_ARL                 0
 279 #define TGSI_OPCODE_MOV                 1
 280 #define TGSI_OPCODE_LIT                 2
 281 #define TGSI_OPCODE_RCP                 3
 282 #define TGSI_OPCODE_RSQ                 4
 283 #define TGSI_OPCODE_EXP                 5
 284 #define TGSI_OPCODE_LOG                 6
 285 #define TGSI_OPCODE_MUL                 7
 286 #define TGSI_OPCODE_ADD                 8
 287 #define TGSI_OPCODE_DP3                 9
 288 #define TGSI_OPCODE_DP4                 10
 289 #define TGSI_OPCODE_DST                 11
 290 #define TGSI_OPCODE_MIN                 12
 291 #define TGSI_OPCODE_MAX                 13
 292 #define TGSI_OPCODE_SLT                 14
 293 #define TGSI_OPCODE_SGE                 15
 294 #define TGSI_OPCODE_MAD                 16
 295 #define TGSI_OPCODE_SUB                 17
 296 #define TGSI_OPCODE_LRP                 18
 297 #define TGSI_OPCODE_CND                 19
 298 #define TGSI_OPCODE_SQRT                20
 299 #define TGSI_OPCODE_DP2A                21
 300                                 /* gap */
 301 #define TGSI_OPCODE_FRC                 24
 302 #define TGSI_OPCODE_CLAMP               25
 303 #define TGSI_OPCODE_FLR                 26
 304 #define TGSI_OPCODE_ROUND               27
 305 #define TGSI_OPCODE_EX2                 28
 306 #define TGSI_OPCODE_LG2                 29
 307 #define TGSI_OPCODE_POW                 30
 308 #define TGSI_OPCODE_XPD                 31
 309                                 /* gap */
 310 #define TGSI_OPCODE_ABS                 33
 311 #define TGSI_OPCODE_RCC                 34
 312 #define TGSI_OPCODE_DPH                 35
 313 #define TGSI_OPCODE_COS                 36
 314 #define TGSI_OPCODE_DDX                 37
 315 #define TGSI_OPCODE_DDY                 38
 316 #define TGSI_OPCODE_KILL                39 /* unconditional */
 317 #define TGSI_OPCODE_PK2H                40
 318 #define TGSI_OPCODE_PK2US               41
 319 #define TGSI_OPCODE_PK4B                42
 320 #define TGSI_OPCODE_PK4UB               43
 321 #define TGSI_OPCODE_RFL                 44
 322 #define TGSI_OPCODE_SEQ                 45
 323 #define TGSI_OPCODE_SFL                 46
 324 #define TGSI_OPCODE_SGT                 47
 325 #define TGSI_OPCODE_SIN                 48
 326 #define TGSI_OPCODE_SLE                 49
 327 #define TGSI_OPCODE_SNE                 50
 328 #define TGSI_OPCODE_STR                 51
 329 #define TGSI_OPCODE_TEX                 52
 330 #define TGSI_OPCODE_TXD                 53
 331 #define TGSI_OPCODE_TXP                 54
 332 #define TGSI_OPCODE_UP2H                55
 333 #define TGSI_OPCODE_UP2US               56
 334 #define TGSI_OPCODE_UP4B                57
 335 #define TGSI_OPCODE_UP4UB               58
 336 #define TGSI_OPCODE_X2D                 59
 337 #define TGSI_OPCODE_ARA                 60
 338 #define TGSI_OPCODE_ARR                 61
 339 #define TGSI_OPCODE_BRA                 62
 340 #define TGSI_OPCODE_CAL                 63
 341 #define TGSI_OPCODE_RET                 64
 342 #define TGSI_OPCODE_SSG                 65 /* SGN */
 343 #define TGSI_OPCODE_CMP                 66
 344 #define TGSI_OPCODE_SCS                 67
 345 #define TGSI_OPCODE_TXB                 68
 346 #define TGSI_OPCODE_NRM                 69
 347 #define TGSI_OPCODE_DIV                 70
 348 #define TGSI_OPCODE_DP2                 71
 349 #define TGSI_OPCODE_TXL                 72
 350 #define TGSI_OPCODE_BRK                 73
 351 #define TGSI_OPCODE_IF                  74
 352 #define TGSI_OPCODE_UIF                 75
 353 #define TGSI_OPCODE_ELSE                77
 354 #define TGSI_OPCODE_ENDIF               78
 355                                 /* gap */
 356 #define TGSI_OPCODE_PUSHA               81
 357 #define TGSI_OPCODE_POPA                82
 358 #define TGSI_OPCODE_CEIL                83
 359 #define TGSI_OPCODE_I2F                 84
 360 #define TGSI_OPCODE_NOT                 85
 361 #define TGSI_OPCODE_TRUNC               86
 362 #define TGSI_OPCODE_SHL                 87
 363                                 /* gap */
 364 #define TGSI_OPCODE_AND                 89
 365 #define TGSI_OPCODE_OR                  90
 366 #define TGSI_OPCODE_MOD                 91
 367 #define TGSI_OPCODE_XOR                 92
 368 #define TGSI_OPCODE_SAD                 93
 369 #define TGSI_OPCODE_TXF                 94
 370 #define TGSI_OPCODE_TXQ                 95
 371 #define TGSI_OPCODE_CONT                96
 372 #define TGSI_OPCODE_EMIT                97
 373 #define TGSI_OPCODE_ENDPRIM             98
 374 #define TGSI_OPCODE_BGNLOOP             99
 375 #define TGSI_OPCODE_BGNSUB              100
 376 #define TGSI_OPCODE_ENDLOOP             101
 377 #define TGSI_OPCODE_ENDSUB              102
 378 #define TGSI_OPCODE_TXQ_LZ              103 /* TXQ for mipmap level 0 */
 379                                 /* gap */
 380 #define TGSI_OPCODE_NOP                 107
 381
 382 #define TGSI_OPCODE_FSEQ                108
 383 #define TGSI_OPCODE_FSGE                109
 384 #define TGSI_OPCODE_FSLT                110
 385 #define TGSI_OPCODE_FSNE                111
 386
 387 #define TGSI_OPCODE_NRM4                112
 388 #define TGSI_OPCODE_CALLNZ              113
 389                                 /* gap */
 390 #define TGSI_OPCODE_BREAKC              115
 391 #define TGSI_OPCODE_KILL_IF             116  /* conditional kill */
 392 #define TGSI_OPCODE_END                 117  /* aka HALT */
 393                                 /* gap */
 394 #define TGSI_OPCODE_F2I                 119
 395 #define TGSI_OPCODE_IDIV                120
 396 #define TGSI_OPCODE_IMAX                121
 397 #define TGSI_OPCODE_IMIN                122
 398 #define TGSI_OPCODE_INEG                123
 399 #define TGSI_OPCODE_ISGE                124
 400 #define TGSI_OPCODE_ISHR                125
 401 #define TGSI_OPCODE_ISLT                126
 402 #define TGSI_OPCODE_F2U                 127
 403 #define TGSI_OPCODE_U2F                 128
 404 #define TGSI_OPCODE_UADD                129
 405 #define TGSI_OPCODE_UDIV                130
 406 #define TGSI_OPCODE_UMAD                131
 407 #define TGSI_OPCODE_UMAX                132
 408 #define TGSI_OPCODE_UMIN                133
 409 #define TGSI_OPCODE_UMOD                134
 410 #define TGSI_OPCODE_UMUL                135
 411 #define TGSI_OPCODE_USEQ                136
 412 #define TGSI_OPCODE_USGE                137
 413 #define TGSI_OPCODE_USHR                138
 414 #define TGSI_OPCODE_USLT                139
 415 #define TGSI_OPCODE_USNE                140
 416 #define TGSI_OPCODE_SWITCH              141
 417 #define TGSI_OPCODE_CASE                142
 418 #define TGSI_OPCODE_DEFAULT             143
 419 #define TGSI_OPCODE_ENDSWITCH           144
 420
 421 /* resource related opcodes */
 422 #define TGSI_OPCODE_SAMPLE              145
 423 #define TGSI_OPCODE_SAMPLE_I            146
 424 #define TGSI_OPCODE_SAMPLE_I_MS         147
 425 #define TGSI_OPCODE_SAMPLE_B            148
 426 #define TGSI_OPCODE_SAMPLE_C            149
 427 #define TGSI_OPCODE_SAMPLE_C_LZ         150
 428 #define TGSI_OPCODE_SAMPLE_D            151
 429 #define TGSI_OPCODE_SAMPLE_L            152
 430 #define TGSI_OPCODE_GATHER4             153
 431 #define TGSI_OPCODE_SVIEWINFO           154
 432 #define TGSI_OPCODE_SAMPLE_POS          155
 433 #define TGSI_OPCODE_SAMPLE_INFO         156
 434
 435 #define TGSI_OPCODE_UARL                157
 436 #define TGSI_OPCODE_UCMP                158
 437 #define TGSI_OPCODE_IABS                159
 438 #define TGSI_OPCODE_ISSG                160
 439
 440 #define TGSI_OPCODE_LOAD                161
 441 #define TGSI_OPCODE_STORE               162
 442
 443 #define TGSI_OPCODE_MFENCE              163
 444 #define TGSI_OPCODE_LFENCE              164
 445 #define TGSI_OPCODE_SFENCE              165
 446 #define TGSI_OPCODE_BARRIER             166
 447
 448 #define TGSI_OPCODE_ATOMUADD            167
 449 #define TGSI_OPCODE_ATOMXCHG            168
 450 #define TGSI_OPCODE_ATOMCAS             169
 451 #define TGSI_OPCODE_ATOMAND             170
 452 #define TGSI_OPCODE_ATOMOR              171
 453 #define TGSI_OPCODE_ATOMXOR             172
 454 #define TGSI_OPCODE_ATOMUMIN            173
 455 #define TGSI_OPCODE_ATOMUMAX            174
 456 #define TGSI_OPCODE_ATOMIMIN            175
 457 #define TGSI_OPCODE_ATOMIMAX            176
 458
 459 /* to be used for shadow cube map compares */
 460 #define TGSI_OPCODE_TEX2                177
 461 #define TGSI_OPCODE_TXB2                178
 462 #define TGSI_OPCODE_TXL2                179
 463
 464 #define TGSI_OPCODE_IMUL_HI             180
 465 #define TGSI_OPCODE_UMUL_HI             181
 466
 467 #define TGSI_OPCODE_TG4                 182
 468
 469 #define TGSI_OPCODE_LODQ                183
 470
 471 #define TGSI_OPCODE_IBFE                184
 472 #define TGSI_OPCODE_UBFE                185
 473 #define TGSI_OPCODE_BFI                 186
 474 #define TGSI_OPCODE_BREV                187
 475 #define TGSI_OPCODE_POPC                188
 476 #define TGSI_OPCODE_LSB                 189
 477 #define TGSI_OPCODE_IMSB                190
 478 #define TGSI_OPCODE_UMSB                191
 479
 480 #define TGSI_OPCODE_LAST                192
 481
 482 #define TGSI_SAT_NONE            0  /* do not saturate */
 483 #define TGSI_SAT_ZERO_ONE        1  /* clamp to [0,1] */
 484 #define TGSI_SAT_MINUS_PLUS_ONE  2  /* clamp to [-1,1] */
 485
 486 /**
 487  * Opcode is the operation code to execute. A given operation defines the
 488  * semantics how the source registers (if any) are interpreted and what is
 489  * written to the destination registers (if any) as a result of execution.
 490  *
 491  * NumDstRegs and NumSrcRegs is the number of destination and source registers,
 492  * respectively. For a given operation code, those numbers are fixed and are
 493  * present here only for convenience.
 494  *
 495  * If Predicate is TRUE, tgsi_instruction_predicate token immediately follows.
 496  *
 497  * Saturate controls how are final results in destination registers modified.
 498  */
 499
 500 struct tgsi_instruction
 501 {
 502    unsigned Type       : 4;  /* TGSI_TOKEN_TYPE_INSTRUCTION */
 503    unsigned NrTokens   : 8;  /* UINT */
 504    unsigned Opcode     : 8;  /* TGSI_OPCODE_ */
 505    unsigned Saturate   : 2;  /* TGSI_SAT_ */
 506    unsigned NumDstRegs : 2;  /* UINT */
 507    unsigned NumSrcRegs : 4;  /* UINT */
 508    unsigned Predicate  : 1;  /* BOOL */
 509    unsigned Label      : 1;
 510    unsigned Texture    : 1;
 511    unsigned Padding    : 1;
 512 };
 513
 514 /*
 515  * If tgsi_instruction::Label is TRUE, tgsi_instruction_label follows.
 516  *
 517  * If tgsi_instruction::Texture is TRUE, tgsi_instruction_texture follows.
 518  *   if texture instruction has a number of offsets,
 519  *   then tgsi_instruction::Texture::NumOffset of tgsi_texture_offset follow.
 520  *
 521  * Then, tgsi_instruction::NumDstRegs of tgsi_dst_register follow.
 522  *
 523  * Then, tgsi_instruction::NumSrcRegs of tgsi_src_register follow.
 524  *
 525  * tgsi_instruction::NrTokens contains the total number of words that make the
 526  * instruction, including the instruction word.
 527  */
 528
 529 #define TGSI_SWIZZLE_X      0
 530 #define TGSI_SWIZZLE_Y      1
 531 #define TGSI_SWIZZLE_Z      2
 532 #define TGSI_SWIZZLE_W      3
 533
 534 struct tgsi_instruction_label
 535 {
 536    unsigned Label    : 24;   /* UINT */
 537    unsigned Padding  : 8;
 538 };
 539
 540 #define TGSI_TEXTURE_BUFFER         0
 541 #define TGSI_TEXTURE_1D             1
 542 #define TGSI_TEXTURE_2D             2
 543 #define TGSI_TEXTURE_3D             3
 544 #define TGSI_TEXTURE_CUBE           4
 545 #define TGSI_TEXTURE_RECT           5
 546 #define TGSI_TEXTURE_SHADOW1D       6
 547 #define TGSI_TEXTURE_SHADOW2D       7
 548 #define TGSI_TEXTURE_SHADOWRECT     8
 549 #define TGSI_TEXTURE_1D_ARRAY       9
 550 #define TGSI_TEXTURE_2D_ARRAY       10
 551 #define TGSI_TEXTURE_SHADOW1D_ARRAY 11
 552 #define TGSI_TEXTURE_SHADOW2D_ARRAY 12
 553 #define TGSI_TEXTURE_SHADOWCUBE     13
 554 #define TGSI_TEXTURE_2D_MSAA        14
 555 #define TGSI_TEXTURE_2D_ARRAY_MSAA  15
 556 #define TGSI_TEXTURE_CUBE_ARRAY     16
 557 #define TGSI_TEXTURE_SHADOWCUBE_ARRAY 17
 558 #define TGSI_TEXTURE_UNKNOWN        18
 559 #define TGSI_TEXTURE_COUNT          19
 560
 561 struct tgsi_instruction_texture
 562 {
 563    unsigned Texture  : 8;    /* TGSI_TEXTURE_ */
 564    unsigned NumOffsets : 4;
 565    unsigned Padding : 20;
 566 };
 567
 568 /* for texture offsets in GLSL and DirectX.
 569  * Generally these always come from TGSI_FILE_IMMEDIATE,
 570  * however DX11 appears to have the capability to do
 571  * non-constant texture offsets.
 572  */
 573 struct tgsi_texture_offset
 574 {
 575    int      Index    : 16;
 576    unsigned File     : 4;  /**< one of TGSI_FILE_x */
 577    unsigned SwizzleX : 2;  /* TGSI_SWIZZLE_x */
 578    unsigned SwizzleY : 2;  /* TGSI_SWIZZLE_x */
 579    unsigned SwizzleZ : 2;  /* TGSI_SWIZZLE_x */
 580    unsigned Padding  : 6;
 581 };
 582
 583 /*
 584  * For SM3, the following constraint applies.
 585  *   - Swizzle is either set to identity or replicate.
 586  */
 587 struct tgsi_instruction_predicate
 588 {
 589    int      Index    : 16; /* SINT */
 590    unsigned SwizzleX : 2;  /* TGSI_SWIZZLE_x */
 591    unsigned SwizzleY : 2;  /* TGSI_SWIZZLE_x */
 592    unsigned SwizzleZ : 2;  /* TGSI_SWIZZLE_x */
 593    unsigned SwizzleW : 2;  /* TGSI_SWIZZLE_x */
 594    unsigned Negate   : 1;  /* BOOL */
 595    unsigned Padding  : 7;
 596 };
 597
 598 /**
 599  * File specifies the register array to access.
 600  *
 601  * Index specifies the element number of a register in the register file.
 602  *
 603  * If Indirect is TRUE, Index should be offset by the X component of the indirect
 604  * register that follows. The register can be now fetched into local storage
 605  * for further processing.
 606  *
 607  * If Negate is TRUE, all components of the fetched register are negated.
 608  *
 609  * The fetched register components are swizzled according to SwizzleX, SwizzleY,
 610  * SwizzleZ and SwizzleW.
 611  *
 612  */
 613
 614 struct tgsi_src_register
 615 {
 616    unsigned File        : 4;  /* TGSI_FILE_ */
 617    unsigned Indirect    : 1;  /* BOOL */
 618    unsigned Dimension   : 1;  /* BOOL */
 619    int      Index       : 16; /* SINT */
 620    unsigned SwizzleX    : 2;  /* TGSI_SWIZZLE_ */
 621    unsigned SwizzleY    : 2;  /* TGSI_SWIZZLE_ */
 622    unsigned SwizzleZ    : 2;  /* TGSI_SWIZZLE_ */
 623    unsigned SwizzleW    : 2;  /* TGSI_SWIZZLE_ */
 624    unsigned Absolute    : 1;    /* BOOL */
 625    unsigned Negate      : 1;    /* BOOL */
 626 };
 627
 628 /**
 629  * If tgsi_src_register::Indirect is TRUE, tgsi_ind_register follows.
 630  *
 631  * File, Index and Swizzle are handled the same as in tgsi_src_register.
 632  *
 633  * If ArrayID is zero the whole register file might be is indirectly addressed,
 634  * if not only the Declaration with this ArrayID is accessed by this operand.
 635  *
 636  */
 637
 638 struct tgsi_ind_register
 639 {
 640    unsigned File    : 4;  /* TGSI_FILE_ */
 641    int      Index   : 16; /* SINT */
 642    unsigned Swizzle : 2;  /* TGSI_SWIZZLE_ */
 643    unsigned ArrayID : 10; /* UINT */
 644 };
 645
 646 /**
 647  * If tgsi_src_register::Dimension is TRUE, tgsi_dimension follows.
 648  */
 649
 650 struct tgsi_dimension
 651 {
 652    unsigned Indirect    : 1;  /* BOOL */
 653    unsigned Dimension   : 1;  /* BOOL */
 654    unsigned Padding     : 14;
 655    int      Index       : 16; /* SINT */
 656 };
 657
 658 struct tgsi_dst_register
 659 {
 660    unsigned File        : 4;  /* TGSI_FILE_ */
 661    unsigned WriteMask   : 4;  /* TGSI_WRITEMASK_ */
 662    unsigned Indirect    : 1;  /* BOOL */
 663    unsigned Dimension   : 1;  /* BOOL */
 664    int      Index       : 16; /* SINT */
 665    unsigned Padding     : 6;
 666 };
 667
 668
 669 #ifdef __cplusplus
 670 }
 671 #endif
 672
 673 #endif /* P_SHADER_TOKENS_H */