1 /**************************************************************************
3 * Copyright 2008 Tungsten Graphics, Inc., Cedar Park, Texas.
4 * Copyright 2009-2010 VMware, Inc.
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:
15 * The above copyright notice and this permission notice (including the
16 * next paragraph) shall be included in all copies or substantial portions
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 TUNGSTEN GRAPHICS 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.
27 **************************************************************************/
29 #ifndef P_SHADER_TOKENS_H
30 #define P_SHADER_TOKENS_H
39 unsigned HeaderSize
: 8;
40 unsigned BodySize
: 24;
43 #define TGSI_PROCESSOR_FRAGMENT 0
44 #define TGSI_PROCESSOR_VERTEX 1
45 #define TGSI_PROCESSOR_GEOMETRY 2
46 #define TGSI_PROCESSOR_COMPUTE 3
50 unsigned Processor
: 4; /* TGSI_PROCESSOR_ */
51 unsigned Padding
: 28;
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
61 unsigned Type
: 4; /**< TGSI_TOKEN_TYPE_x */
62 unsigned NrTokens
: 8; /**< UINT */
63 unsigned Padding
: 20;
68 TGSI_FILE_CONSTANT
=1,
71 TGSI_FILE_TEMPORARY
=4,
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 */
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
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
106 #define TGSI_CYLINDRICAL_WRAP_X (1 << 0)
107 #define TGSI_CYLINDRICAL_WRAP_Y (1 << 1)
108 #define TGSI_CYLINDRICAL_WRAP_Z (1 << 2)
109 #define TGSI_CYLINDRICAL_WRAP_W (1 << 3)
111 struct tgsi_declaration
113 unsigned Type
: 4; /**< TGSI_TOKEN_TYPE_DECLARATION */
114 unsigned NrTokens
: 8; /**< UINT */
115 unsigned File
: 4; /**< one of TGSI_FILE_x */
116 unsigned UsageMask
: 4; /**< bitmask of TGSI_WRITEMASK_x flags */
117 unsigned Dimension
: 1; /**< any extra dimension info? */
118 unsigned Semantic
: 1; /**< BOOL, any semantic info? */
119 unsigned Interpolate
: 1; /**< any interpolation info? */
120 unsigned Invariant
: 1; /**< invariant optimization? */
121 unsigned Local
: 1; /**< optimize as subroutine local variable? */
122 unsigned Array
: 1; /**< extra array info? */
123 unsigned Padding
: 6;
126 struct tgsi_declaration_range
128 unsigned First
: 16; /**< UINT */
129 unsigned Last
: 16; /**< UINT */
132 struct tgsi_declaration_dimension
134 unsigned Index2D
:16; /**< UINT */
138 struct tgsi_declaration_interp
140 unsigned Interpolate
: 4; /**< one of TGSI_INTERPOLATE_x */
141 unsigned Centroid
: 1; /**< centroid sampling? */
142 unsigned CylindricalWrap
:4; /**< TGSI_CYLINDRICAL_WRAP_x flags */
143 unsigned Padding
: 23;
146 #define TGSI_SEMANTIC_POSITION 0
147 #define TGSI_SEMANTIC_COLOR 1
148 #define TGSI_SEMANTIC_BCOLOR 2 /**< back-face color */
149 #define TGSI_SEMANTIC_FOG 3
150 #define TGSI_SEMANTIC_PSIZE 4
151 #define TGSI_SEMANTIC_GENERIC 5
152 #define TGSI_SEMANTIC_NORMAL 6
153 #define TGSI_SEMANTIC_FACE 7
154 #define TGSI_SEMANTIC_EDGEFLAG 8
155 #define TGSI_SEMANTIC_PRIMID 9
156 #define TGSI_SEMANTIC_INSTANCEID 10 /**< doesn't include start_instance */
157 #define TGSI_SEMANTIC_VERTEXID 11
158 #define TGSI_SEMANTIC_STENCIL 12
159 #define TGSI_SEMANTIC_CLIPDIST 13
160 #define TGSI_SEMANTIC_CLIPVERTEX 14
161 #define TGSI_SEMANTIC_GRID_SIZE 15 /**< grid size in blocks */
162 #define TGSI_SEMANTIC_BLOCK_ID 16 /**< id of the current block */
163 #define TGSI_SEMANTIC_BLOCK_SIZE 17 /**< block size in threads */
164 #define TGSI_SEMANTIC_THREAD_ID 18 /**< block-relative id of the current thread */
165 #define TGSI_SEMANTIC_TEXCOORD 19 /**< texture or sprite coordinates */
166 #define TGSI_SEMANTIC_PCOORD 20 /**< point sprite coordinate */
167 #define TGSI_SEMANTIC_VIEWPORT_INDEX 21 /**< viewport index */
168 #define TGSI_SEMANTIC_LAYER 22 /**< layer (rendertarget index) */
169 #define TGSI_SEMANTIC_CULLDIST 23
170 #define TGSI_SEMANTIC_COUNT 24 /**< number of semantic values */
172 struct tgsi_declaration_semantic
174 unsigned Name
: 8; /**< one of TGSI_SEMANTIC_x */
175 unsigned Index
: 16; /**< UINT */
176 unsigned Padding
: 8;
179 struct tgsi_declaration_resource
{
180 unsigned Resource
: 8; /**< one of TGSI_TEXTURE_ */
182 unsigned Writable
: 1;
183 unsigned Padding
: 22;
186 struct tgsi_declaration_sampler_view
{
187 unsigned Resource
: 8; /**< one of TGSI_TEXTURE_ */
188 unsigned ReturnTypeX
: 6; /**< one of enum pipe_type */
189 unsigned ReturnTypeY
: 6; /**< one of enum pipe_type */
190 unsigned ReturnTypeZ
: 6; /**< one of enum pipe_type */
191 unsigned ReturnTypeW
: 6; /**< one of enum pipe_type */
194 struct tgsi_declaration_array
{
195 unsigned ArrayID
: 10;
196 unsigned Padding
: 22;
200 * Special resources that don't need to be declared. They map to the
201 * GLOBAL/LOCAL/PRIVATE/INPUT compute memory spaces.
203 #define TGSI_RESOURCE_GLOBAL 0x7fff
204 #define TGSI_RESOURCE_LOCAL 0x7ffe
205 #define TGSI_RESOURCE_PRIVATE 0x7ffd
206 #define TGSI_RESOURCE_INPUT 0x7ffc
208 #define TGSI_IMM_FLOAT32 0
209 #define TGSI_IMM_UINT32 1
210 #define TGSI_IMM_INT32 2
212 struct tgsi_immediate
214 unsigned Type
: 4; /**< TGSI_TOKEN_TYPE_IMMEDIATE */
215 unsigned NrTokens
: 14; /**< UINT */
216 unsigned DataType
: 4; /**< one of TGSI_IMM_x */
217 unsigned Padding
: 10;
220 union tgsi_immediate_data
227 #define TGSI_PROPERTY_GS_INPUT_PRIM 0
228 #define TGSI_PROPERTY_GS_OUTPUT_PRIM 1
229 #define TGSI_PROPERTY_GS_MAX_OUTPUT_VERTICES 2
230 #define TGSI_PROPERTY_FS_COORD_ORIGIN 3
231 #define TGSI_PROPERTY_FS_COORD_PIXEL_CENTER 4
232 #define TGSI_PROPERTY_FS_COLOR0_WRITES_ALL_CBUFS 5
233 #define TGSI_PROPERTY_FS_DEPTH_LAYOUT 6
234 #define TGSI_PROPERTY_VS_PROHIBIT_UCPS 7
235 #define TGSI_PROPERTY_COUNT 8
237 struct tgsi_property
{
238 unsigned Type
: 4; /**< TGSI_TOKEN_TYPE_PROPERTY */
239 unsigned NrTokens
: 8; /**< UINT */
240 unsigned PropertyName
: 8; /**< one of TGSI_PROPERTY */
241 unsigned Padding
: 12;
244 #define TGSI_FS_COORD_ORIGIN_UPPER_LEFT 0
245 #define TGSI_FS_COORD_ORIGIN_LOWER_LEFT 1
247 #define TGSI_FS_COORD_PIXEL_CENTER_HALF_INTEGER 0
248 #define TGSI_FS_COORD_PIXEL_CENTER_INTEGER 1
250 #define TGSI_FS_DEPTH_LAYOUT_NONE 0
251 #define TGSI_FS_DEPTH_LAYOUT_ANY 1
252 #define TGSI_FS_DEPTH_LAYOUT_GREATER 2
253 #define TGSI_FS_DEPTH_LAYOUT_LESS 3
254 #define TGSI_FS_DEPTH_LAYOUT_UNCHANGED 4
257 struct tgsi_property_data
{
263 * For more information on semantics of opcodes and
264 * which APIs are known to use which opcodes, see
265 * gallium/docs/source/tgsi.rst
267 #define TGSI_OPCODE_ARL 0
268 #define TGSI_OPCODE_MOV 1
269 #define TGSI_OPCODE_LIT 2
270 #define TGSI_OPCODE_RCP 3
271 #define TGSI_OPCODE_RSQ 4
272 #define TGSI_OPCODE_EXP 5
273 #define TGSI_OPCODE_LOG 6
274 #define TGSI_OPCODE_MUL 7
275 #define TGSI_OPCODE_ADD 8
276 #define TGSI_OPCODE_DP3 9
277 #define TGSI_OPCODE_DP4 10
278 #define TGSI_OPCODE_DST 11
279 #define TGSI_OPCODE_MIN 12
280 #define TGSI_OPCODE_MAX 13
281 #define TGSI_OPCODE_SLT 14
282 #define TGSI_OPCODE_SGE 15
283 #define TGSI_OPCODE_MAD 16
284 #define TGSI_OPCODE_SUB 17
285 #define TGSI_OPCODE_LRP 18
286 #define TGSI_OPCODE_CND 19
287 #define TGSI_OPCODE_SQRT 20
288 #define TGSI_OPCODE_DP2A 21
290 #define TGSI_OPCODE_FRC 24
291 #define TGSI_OPCODE_CLAMP 25
292 #define TGSI_OPCODE_FLR 26
293 #define TGSI_OPCODE_ROUND 27
294 #define TGSI_OPCODE_EX2 28
295 #define TGSI_OPCODE_LG2 29
296 #define TGSI_OPCODE_POW 30
297 #define TGSI_OPCODE_XPD 31
299 #define TGSI_OPCODE_ABS 33
300 #define TGSI_OPCODE_RCC 34
301 #define TGSI_OPCODE_DPH 35
302 #define TGSI_OPCODE_COS 36
303 #define TGSI_OPCODE_DDX 37
304 #define TGSI_OPCODE_DDY 38
305 #define TGSI_OPCODE_KILL 39 /* unconditional */
306 #define TGSI_OPCODE_PK2H 40
307 #define TGSI_OPCODE_PK2US 41
308 #define TGSI_OPCODE_PK4B 42
309 #define TGSI_OPCODE_PK4UB 43
310 #define TGSI_OPCODE_RFL 44
311 #define TGSI_OPCODE_SEQ 45
312 #define TGSI_OPCODE_SFL 46
313 #define TGSI_OPCODE_SGT 47
314 #define TGSI_OPCODE_SIN 48
315 #define TGSI_OPCODE_SLE 49
316 #define TGSI_OPCODE_SNE 50
317 #define TGSI_OPCODE_STR 51
318 #define TGSI_OPCODE_TEX 52
319 #define TGSI_OPCODE_TXD 53
320 #define TGSI_OPCODE_TXP 54
321 #define TGSI_OPCODE_UP2H 55
322 #define TGSI_OPCODE_UP2US 56
323 #define TGSI_OPCODE_UP4B 57
324 #define TGSI_OPCODE_UP4UB 58
325 #define TGSI_OPCODE_X2D 59
326 #define TGSI_OPCODE_ARA 60
327 #define TGSI_OPCODE_ARR 61
328 #define TGSI_OPCODE_BRA 62
329 #define TGSI_OPCODE_CAL 63
330 #define TGSI_OPCODE_RET 64
331 #define TGSI_OPCODE_SSG 65 /* SGN */
332 #define TGSI_OPCODE_CMP 66
333 #define TGSI_OPCODE_SCS 67
334 #define TGSI_OPCODE_TXB 68
335 #define TGSI_OPCODE_NRM 69
336 #define TGSI_OPCODE_DIV 70
337 #define TGSI_OPCODE_DP2 71
338 #define TGSI_OPCODE_TXL 72
339 #define TGSI_OPCODE_BRK 73
340 #define TGSI_OPCODE_IF 74
341 #define TGSI_OPCODE_UIF 75
342 #define TGSI_OPCODE_ELSE 77
343 #define TGSI_OPCODE_ENDIF 78
345 #define TGSI_OPCODE_PUSHA 81
346 #define TGSI_OPCODE_POPA 82
347 #define TGSI_OPCODE_CEIL 83
348 #define TGSI_OPCODE_I2F 84
349 #define TGSI_OPCODE_NOT 85
350 #define TGSI_OPCODE_TRUNC 86
351 #define TGSI_OPCODE_SHL 87
353 #define TGSI_OPCODE_AND 89
354 #define TGSI_OPCODE_OR 90
355 #define TGSI_OPCODE_MOD 91
356 #define TGSI_OPCODE_XOR 92
357 #define TGSI_OPCODE_SAD 93
358 #define TGSI_OPCODE_TXF 94
359 #define TGSI_OPCODE_TXQ 95
360 #define TGSI_OPCODE_CONT 96
361 #define TGSI_OPCODE_EMIT 97
362 #define TGSI_OPCODE_ENDPRIM 98
363 #define TGSI_OPCODE_BGNLOOP 99
364 #define TGSI_OPCODE_BGNSUB 100
365 #define TGSI_OPCODE_ENDLOOP 101
366 #define TGSI_OPCODE_ENDSUB 102
367 #define TGSI_OPCODE_TXQ_LZ 103 /* TXQ for mipmap level 0 */
369 #define TGSI_OPCODE_NOP 107
371 #define TGSI_OPCODE_FSEQ 108
372 #define TGSI_OPCODE_FSGE 109
373 #define TGSI_OPCODE_FSLT 110
374 #define TGSI_OPCODE_FSNE 111
376 #define TGSI_OPCODE_NRM4 112
377 #define TGSI_OPCODE_CALLNZ 113
379 #define TGSI_OPCODE_BREAKC 115
380 #define TGSI_OPCODE_KILL_IF 116 /* conditional kill */
381 #define TGSI_OPCODE_END 117 /* aka HALT */
383 #define TGSI_OPCODE_F2I 119
384 #define TGSI_OPCODE_IDIV 120
385 #define TGSI_OPCODE_IMAX 121
386 #define TGSI_OPCODE_IMIN 122
387 #define TGSI_OPCODE_INEG 123
388 #define TGSI_OPCODE_ISGE 124
389 #define TGSI_OPCODE_ISHR 125
390 #define TGSI_OPCODE_ISLT 126
391 #define TGSI_OPCODE_F2U 127
392 #define TGSI_OPCODE_U2F 128
393 #define TGSI_OPCODE_UADD 129
394 #define TGSI_OPCODE_UDIV 130
395 #define TGSI_OPCODE_UMAD 131
396 #define TGSI_OPCODE_UMAX 132
397 #define TGSI_OPCODE_UMIN 133
398 #define TGSI_OPCODE_UMOD 134
399 #define TGSI_OPCODE_UMUL 135
400 #define TGSI_OPCODE_USEQ 136
401 #define TGSI_OPCODE_USGE 137
402 #define TGSI_OPCODE_USHR 138
403 #define TGSI_OPCODE_USLT 139
404 #define TGSI_OPCODE_USNE 140
405 #define TGSI_OPCODE_SWITCH 141
406 #define TGSI_OPCODE_CASE 142
407 #define TGSI_OPCODE_DEFAULT 143
408 #define TGSI_OPCODE_ENDSWITCH 144
410 /* resource related opcodes */
411 #define TGSI_OPCODE_SAMPLE 145
412 #define TGSI_OPCODE_SAMPLE_I 146
413 #define TGSI_OPCODE_SAMPLE_I_MS 147
414 #define TGSI_OPCODE_SAMPLE_B 148
415 #define TGSI_OPCODE_SAMPLE_C 149
416 #define TGSI_OPCODE_SAMPLE_C_LZ 150
417 #define TGSI_OPCODE_SAMPLE_D 151
418 #define TGSI_OPCODE_SAMPLE_L 152
419 #define TGSI_OPCODE_GATHER4 153
420 #define TGSI_OPCODE_SVIEWINFO 154
421 #define TGSI_OPCODE_SAMPLE_POS 155
422 #define TGSI_OPCODE_SAMPLE_INFO 156
424 #define TGSI_OPCODE_UARL 157
425 #define TGSI_OPCODE_UCMP 158
426 #define TGSI_OPCODE_IABS 159
427 #define TGSI_OPCODE_ISSG 160
429 #define TGSI_OPCODE_LOAD 161
430 #define TGSI_OPCODE_STORE 162
432 #define TGSI_OPCODE_MFENCE 163
433 #define TGSI_OPCODE_LFENCE 164
434 #define TGSI_OPCODE_SFENCE 165
435 #define TGSI_OPCODE_BARRIER 166
437 #define TGSI_OPCODE_ATOMUADD 167
438 #define TGSI_OPCODE_ATOMXCHG 168
439 #define TGSI_OPCODE_ATOMCAS 169
440 #define TGSI_OPCODE_ATOMAND 170
441 #define TGSI_OPCODE_ATOMOR 171
442 #define TGSI_OPCODE_ATOMXOR 172
443 #define TGSI_OPCODE_ATOMUMIN 173
444 #define TGSI_OPCODE_ATOMUMAX 174
445 #define TGSI_OPCODE_ATOMIMIN 175
446 #define TGSI_OPCODE_ATOMIMAX 176
448 /* to be used for shadow cube map compares */
449 #define TGSI_OPCODE_TEX2 177
450 #define TGSI_OPCODE_TXB2 178
451 #define TGSI_OPCODE_TXL2 179
453 #define TGSI_OPCODE_LAST 180
455 #define TGSI_SAT_NONE 0 /* do not saturate */
456 #define TGSI_SAT_ZERO_ONE 1 /* clamp to [0,1] */
457 #define TGSI_SAT_MINUS_PLUS_ONE 2 /* clamp to [-1,1] */
460 * Opcode is the operation code to execute. A given operation defines the
461 * semantics how the source registers (if any) are interpreted and what is
462 * written to the destination registers (if any) as a result of execution.
464 * NumDstRegs and NumSrcRegs is the number of destination and source registers,
465 * respectively. For a given operation code, those numbers are fixed and are
466 * present here only for convenience.
468 * If Predicate is TRUE, tgsi_instruction_predicate token immediately follows.
470 * Saturate controls how are final results in destination registers modified.
473 struct tgsi_instruction
475 unsigned Type
: 4; /* TGSI_TOKEN_TYPE_INSTRUCTION */
476 unsigned NrTokens
: 8; /* UINT */
477 unsigned Opcode
: 8; /* TGSI_OPCODE_ */
478 unsigned Saturate
: 2; /* TGSI_SAT_ */
479 unsigned NumDstRegs
: 2; /* UINT */
480 unsigned NumSrcRegs
: 4; /* UINT */
481 unsigned Predicate
: 1; /* BOOL */
483 unsigned Texture
: 1;
484 unsigned Padding
: 1;
488 * If tgsi_instruction::Label is TRUE, tgsi_instruction_label follows.
490 * If tgsi_instruction::Texture is TRUE, tgsi_instruction_texture follows.
491 * if texture instruction has a number of offsets,
492 * then tgsi_instruction::Texture::NumOffset of tgsi_texture_offset follow.
494 * Then, tgsi_instruction::NumDstRegs of tgsi_dst_register follow.
496 * Then, tgsi_instruction::NumSrcRegs of tgsi_src_register follow.
498 * tgsi_instruction::NrTokens contains the total number of words that make the
499 * instruction, including the instruction word.
502 #define TGSI_SWIZZLE_X 0
503 #define TGSI_SWIZZLE_Y 1
504 #define TGSI_SWIZZLE_Z 2
505 #define TGSI_SWIZZLE_W 3
507 struct tgsi_instruction_label
509 unsigned Label
: 24; /* UINT */
510 unsigned Padding
: 8;
513 #define TGSI_TEXTURE_BUFFER 0
514 #define TGSI_TEXTURE_1D 1
515 #define TGSI_TEXTURE_2D 2
516 #define TGSI_TEXTURE_3D 3
517 #define TGSI_TEXTURE_CUBE 4
518 #define TGSI_TEXTURE_RECT 5
519 #define TGSI_TEXTURE_SHADOW1D 6
520 #define TGSI_TEXTURE_SHADOW2D 7
521 #define TGSI_TEXTURE_SHADOWRECT 8
522 #define TGSI_TEXTURE_1D_ARRAY 9
523 #define TGSI_TEXTURE_2D_ARRAY 10
524 #define TGSI_TEXTURE_SHADOW1D_ARRAY 11
525 #define TGSI_TEXTURE_SHADOW2D_ARRAY 12
526 #define TGSI_TEXTURE_SHADOWCUBE 13
527 #define TGSI_TEXTURE_2D_MSAA 14
528 #define TGSI_TEXTURE_2D_ARRAY_MSAA 15
529 #define TGSI_TEXTURE_CUBE_ARRAY 16
530 #define TGSI_TEXTURE_SHADOWCUBE_ARRAY 17
531 #define TGSI_TEXTURE_UNKNOWN 18
532 #define TGSI_TEXTURE_COUNT 19
534 struct tgsi_instruction_texture
536 unsigned Texture
: 8; /* TGSI_TEXTURE_ */
537 unsigned NumOffsets
: 4;
538 unsigned Padding
: 20;
541 /* for texture offsets in GLSL and DirectX.
542 * Generally these always come from TGSI_FILE_IMMEDIATE,
543 * however DX11 appears to have the capability to do
544 * non-constant texture offsets.
546 struct tgsi_texture_offset
549 unsigned File
: 4; /**< one of TGSI_FILE_x */
550 unsigned SwizzleX
: 2; /* TGSI_SWIZZLE_x */
551 unsigned SwizzleY
: 2; /* TGSI_SWIZZLE_x */
552 unsigned SwizzleZ
: 2; /* TGSI_SWIZZLE_x */
553 unsigned Padding
: 6;
557 * For SM3, the following constraint applies.
558 * - Swizzle is either set to identity or replicate.
560 struct tgsi_instruction_predicate
562 int Index
: 16; /* SINT */
563 unsigned SwizzleX
: 2; /* TGSI_SWIZZLE_x */
564 unsigned SwizzleY
: 2; /* TGSI_SWIZZLE_x */
565 unsigned SwizzleZ
: 2; /* TGSI_SWIZZLE_x */
566 unsigned SwizzleW
: 2; /* TGSI_SWIZZLE_x */
567 unsigned Negate
: 1; /* BOOL */
568 unsigned Padding
: 7;
572 * File specifies the register array to access.
574 * Index specifies the element number of a register in the register file.
576 * If Indirect is TRUE, Index should be offset by the X component of the indirect
577 * register that follows. The register can be now fetched into local storage
578 * for further processing.
580 * If Negate is TRUE, all components of the fetched register are negated.
582 * The fetched register components are swizzled according to SwizzleX, SwizzleY,
583 * SwizzleZ and SwizzleW.
587 struct tgsi_src_register
589 unsigned File
: 4; /* TGSI_FILE_ */
590 unsigned Indirect
: 1; /* BOOL */
591 unsigned Dimension
: 1; /* BOOL */
592 int Index
: 16; /* SINT */
593 unsigned SwizzleX
: 2; /* TGSI_SWIZZLE_ */
594 unsigned SwizzleY
: 2; /* TGSI_SWIZZLE_ */
595 unsigned SwizzleZ
: 2; /* TGSI_SWIZZLE_ */
596 unsigned SwizzleW
: 2; /* TGSI_SWIZZLE_ */
597 unsigned Absolute
: 1; /* BOOL */
598 unsigned Negate
: 1; /* BOOL */
602 * If tgsi_src_register::Indirect is TRUE, tgsi_ind_register follows.
604 * File, Index and Swizzle are handled the same as in tgsi_src_register.
606 * If ArrayID is zero the whole register file might be is indirectly addressed,
607 * if not only the Declaration with this ArrayID is accessed by this operand.
611 struct tgsi_ind_register
613 unsigned File
: 4; /* TGSI_FILE_ */
614 int Index
: 16; /* SINT */
615 unsigned Swizzle
: 2; /* TGSI_SWIZZLE_ */
616 unsigned ArrayID
: 10; /* UINT */
620 * If tgsi_src_register::Dimension is TRUE, tgsi_dimension follows.
623 struct tgsi_dimension
625 unsigned Indirect
: 1; /* BOOL */
626 unsigned Dimension
: 1; /* BOOL */
627 unsigned Padding
: 14;
628 int Index
: 16; /* SINT */
631 struct tgsi_dst_register
633 unsigned File
: 4; /* TGSI_FILE_ */
634 unsigned WriteMask
: 4; /* TGSI_WRITEMASK_ */
635 unsigned Indirect
: 1; /* BOOL */
636 unsigned Dimension
: 1; /* BOOL */
637 int Index
: 16; /* SINT */
638 unsigned Padding
: 6;
646 #endif /* P_SHADER_TOKENS_H */