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_IMMEDIATE_ARRAY
=10,
78 TGSI_FILE_TEMPORARY_ARRAY
=11,
79 TGSI_FILE_RESOURCE
=12,
80 TGSI_FILE_SAMPLER_VIEW
=13,
81 TGSI_FILE_COUNT
/**< how many TGSI_FILE_ types */
85 #define TGSI_WRITEMASK_NONE 0x00
86 #define TGSI_WRITEMASK_X 0x01
87 #define TGSI_WRITEMASK_Y 0x02
88 #define TGSI_WRITEMASK_XY 0x03
89 #define TGSI_WRITEMASK_Z 0x04
90 #define TGSI_WRITEMASK_XZ 0x05
91 #define TGSI_WRITEMASK_YZ 0x06
92 #define TGSI_WRITEMASK_XYZ 0x07
93 #define TGSI_WRITEMASK_W 0x08
94 #define TGSI_WRITEMASK_XW 0x09
95 #define TGSI_WRITEMASK_YW 0x0A
96 #define TGSI_WRITEMASK_XYW 0x0B
97 #define TGSI_WRITEMASK_ZW 0x0C
98 #define TGSI_WRITEMASK_XZW 0x0D
99 #define TGSI_WRITEMASK_YZW 0x0E
100 #define TGSI_WRITEMASK_XYZW 0x0F
102 #define TGSI_INTERPOLATE_CONSTANT 0
103 #define TGSI_INTERPOLATE_LINEAR 1
104 #define TGSI_INTERPOLATE_PERSPECTIVE 2
105 #define TGSI_INTERPOLATE_COLOR 3 /* special color case for smooth/flat */
106 #define TGSI_INTERPOLATE_COUNT 4
108 #define TGSI_CYLINDRICAL_WRAP_X (1 << 0)
109 #define TGSI_CYLINDRICAL_WRAP_Y (1 << 1)
110 #define TGSI_CYLINDRICAL_WRAP_Z (1 << 2)
111 #define TGSI_CYLINDRICAL_WRAP_W (1 << 3)
113 struct tgsi_declaration
115 unsigned Type
: 4; /**< TGSI_TOKEN_TYPE_DECLARATION */
116 unsigned NrTokens
: 8; /**< UINT */
117 unsigned File
: 4; /**< one of TGSI_FILE_x */
118 unsigned UsageMask
: 4; /**< bitmask of TGSI_WRITEMASK_x flags */
119 unsigned Dimension
: 1; /**< any extra dimension info? */
120 unsigned Semantic
: 1; /**< BOOL, any semantic info? */
121 unsigned Interpolate
: 1; /**< any interpolation info? */
122 unsigned Invariant
: 1; /**< invariant optimization? */
123 unsigned Local
: 1; /**< optimize as subroutine local variable? */
124 unsigned Padding
: 7;
127 struct tgsi_declaration_range
129 unsigned First
: 16; /**< UINT */
130 unsigned Last
: 16; /**< UINT */
133 struct tgsi_declaration_dimension
135 unsigned Index2D
:16; /**< UINT */
139 struct tgsi_declaration_interp
141 unsigned Interpolate
: 4; /**< one of TGSI_INTERPOLATE_x */
142 unsigned Centroid
: 1; /**< centroid sampling? */
143 unsigned CylindricalWrap
:4; /**< TGSI_CYLINDRICAL_WRAP_x flags */
144 unsigned Padding
: 23;
147 #define TGSI_SEMANTIC_POSITION 0
148 #define TGSI_SEMANTIC_COLOR 1
149 #define TGSI_SEMANTIC_BCOLOR 2 /**< back-face color */
150 #define TGSI_SEMANTIC_FOG 3
151 #define TGSI_SEMANTIC_PSIZE 4
152 #define TGSI_SEMANTIC_GENERIC 5
153 #define TGSI_SEMANTIC_NORMAL 6
154 #define TGSI_SEMANTIC_FACE 7
155 #define TGSI_SEMANTIC_EDGEFLAG 8
156 #define TGSI_SEMANTIC_PRIMID 9
157 #define TGSI_SEMANTIC_INSTANCEID 10
158 #define TGSI_SEMANTIC_VERTEXID 11
159 #define TGSI_SEMANTIC_STENCIL 12
160 #define TGSI_SEMANTIC_CLIPDIST 13
161 #define TGSI_SEMANTIC_CLIPVERTEX 14
162 #define TGSI_SEMANTIC_GRID_SIZE 15 /**< grid size in blocks */
163 #define TGSI_SEMANTIC_BLOCK_ID 16 /**< id of the current block */
164 #define TGSI_SEMANTIC_BLOCK_SIZE 17 /**< block size in threads */
165 #define TGSI_SEMANTIC_THREAD_ID 18 /**< block-relative id of the current thread */
166 #define TGSI_SEMANTIC_COUNT 19 /**< number of semantic values */
168 struct tgsi_declaration_semantic
170 unsigned Name
: 8; /**< one of TGSI_SEMANTIC_x */
171 unsigned Index
: 16; /**< UINT */
172 unsigned Padding
: 8;
175 struct tgsi_declaration_resource
{
176 unsigned Resource
: 8; /**< one of TGSI_TEXTURE_ */
178 unsigned Writable
: 1;
179 unsigned Padding
: 22;
182 struct tgsi_declaration_sampler_view
{
183 unsigned Resource
: 8; /**< one of TGSI_TEXTURE_ */
184 unsigned ReturnTypeX
: 6; /**< one of enum pipe_type */
185 unsigned ReturnTypeY
: 6; /**< one of enum pipe_type */
186 unsigned ReturnTypeZ
: 6; /**< one of enum pipe_type */
187 unsigned ReturnTypeW
: 6; /**< one of enum pipe_type */
191 * Special resources that don't need to be declared. They map to the
192 * GLOBAL/LOCAL/PRIVATE/INPUT compute memory spaces.
194 #define TGSI_RESOURCE_GLOBAL 0x7fff
195 #define TGSI_RESOURCE_LOCAL 0x7ffe
196 #define TGSI_RESOURCE_PRIVATE 0x7ffd
197 #define TGSI_RESOURCE_INPUT 0x7ffc
199 #define TGSI_IMM_FLOAT32 0
200 #define TGSI_IMM_UINT32 1
201 #define TGSI_IMM_INT32 2
203 struct tgsi_immediate
205 unsigned Type
: 4; /**< TGSI_TOKEN_TYPE_IMMEDIATE */
206 unsigned NrTokens
: 14; /**< UINT */
207 unsigned DataType
: 4; /**< one of TGSI_IMM_x */
208 unsigned Padding
: 10;
211 union tgsi_immediate_data
218 #define TGSI_PROPERTY_GS_INPUT_PRIM 0
219 #define TGSI_PROPERTY_GS_OUTPUT_PRIM 1
220 #define TGSI_PROPERTY_GS_MAX_OUTPUT_VERTICES 2
221 #define TGSI_PROPERTY_FS_COORD_ORIGIN 3
222 #define TGSI_PROPERTY_FS_COORD_PIXEL_CENTER 4
223 #define TGSI_PROPERTY_FS_COLOR0_WRITES_ALL_CBUFS 5
224 #define TGSI_PROPERTY_FS_DEPTH_LAYOUT 6
225 #define TGSI_PROPERTY_VS_PROHIBIT_UCPS 7
226 #define TGSI_PROPERTY_COUNT 8
228 struct tgsi_property
{
229 unsigned Type
: 4; /**< TGSI_TOKEN_TYPE_PROPERTY */
230 unsigned NrTokens
: 8; /**< UINT */
231 unsigned PropertyName
: 8; /**< one of TGSI_PROPERTY */
232 unsigned Padding
: 12;
235 #define TGSI_FS_COORD_ORIGIN_UPPER_LEFT 0
236 #define TGSI_FS_COORD_ORIGIN_LOWER_LEFT 1
238 #define TGSI_FS_COORD_PIXEL_CENTER_HALF_INTEGER 0
239 #define TGSI_FS_COORD_PIXEL_CENTER_INTEGER 1
241 #define TGSI_FS_DEPTH_LAYOUT_NONE 0
242 #define TGSI_FS_DEPTH_LAYOUT_ANY 1
243 #define TGSI_FS_DEPTH_LAYOUT_GREATER 2
244 #define TGSI_FS_DEPTH_LAYOUT_LESS 3
245 #define TGSI_FS_DEPTH_LAYOUT_UNCHANGED 4
248 struct tgsi_property_data
{
254 * For more information on semantics of opcodes and
255 * which APIs are known to use which opcodes, see
256 * gallium/docs/source/tgsi.rst
258 #define TGSI_OPCODE_ARL 0
259 #define TGSI_OPCODE_MOV 1
260 #define TGSI_OPCODE_LIT 2
261 #define TGSI_OPCODE_RCP 3
262 #define TGSI_OPCODE_RSQ 4
263 #define TGSI_OPCODE_EXP 5
264 #define TGSI_OPCODE_LOG 6
265 #define TGSI_OPCODE_MUL 7
266 #define TGSI_OPCODE_ADD 8
267 #define TGSI_OPCODE_DP3 9
268 #define TGSI_OPCODE_DP4 10
269 #define TGSI_OPCODE_DST 11
270 #define TGSI_OPCODE_MIN 12
271 #define TGSI_OPCODE_MAX 13
272 #define TGSI_OPCODE_SLT 14
273 #define TGSI_OPCODE_SGE 15
274 #define TGSI_OPCODE_MAD 16
275 #define TGSI_OPCODE_SUB 17
276 #define TGSI_OPCODE_LRP 18
277 #define TGSI_OPCODE_CND 19
279 #define TGSI_OPCODE_DP2A 21
281 #define TGSI_OPCODE_FRC 24
282 #define TGSI_OPCODE_CLAMP 25
283 #define TGSI_OPCODE_FLR 26
284 #define TGSI_OPCODE_ROUND 27
285 #define TGSI_OPCODE_EX2 28
286 #define TGSI_OPCODE_LG2 29
287 #define TGSI_OPCODE_POW 30
288 #define TGSI_OPCODE_XPD 31
290 #define TGSI_OPCODE_ABS 33
291 #define TGSI_OPCODE_RCC 34
292 #define TGSI_OPCODE_DPH 35
293 #define TGSI_OPCODE_COS 36
294 #define TGSI_OPCODE_DDX 37
295 #define TGSI_OPCODE_DDY 38
296 #define TGSI_OPCODE_KILP 39 /* predicated kill */
297 #define TGSI_OPCODE_PK2H 40
298 #define TGSI_OPCODE_PK2US 41
299 #define TGSI_OPCODE_PK4B 42
300 #define TGSI_OPCODE_PK4UB 43
301 #define TGSI_OPCODE_RFL 44
302 #define TGSI_OPCODE_SEQ 45
303 #define TGSI_OPCODE_SFL 46
304 #define TGSI_OPCODE_SGT 47
305 #define TGSI_OPCODE_SIN 48
306 #define TGSI_OPCODE_SLE 49
307 #define TGSI_OPCODE_SNE 50
308 #define TGSI_OPCODE_STR 51
309 #define TGSI_OPCODE_TEX 52
310 #define TGSI_OPCODE_TXD 53
311 #define TGSI_OPCODE_TXP 54
312 #define TGSI_OPCODE_UP2H 55
313 #define TGSI_OPCODE_UP2US 56
314 #define TGSI_OPCODE_UP4B 57
315 #define TGSI_OPCODE_UP4UB 58
316 #define TGSI_OPCODE_X2D 59
317 #define TGSI_OPCODE_ARA 60
318 #define TGSI_OPCODE_ARR 61
319 #define TGSI_OPCODE_BRA 62
320 #define TGSI_OPCODE_CAL 63
321 #define TGSI_OPCODE_RET 64
322 #define TGSI_OPCODE_SSG 65 /* SGN */
323 #define TGSI_OPCODE_CMP 66
324 #define TGSI_OPCODE_SCS 67
325 #define TGSI_OPCODE_TXB 68
326 #define TGSI_OPCODE_NRM 69
327 #define TGSI_OPCODE_DIV 70
328 #define TGSI_OPCODE_DP2 71
329 #define TGSI_OPCODE_TXL 72
330 #define TGSI_OPCODE_BRK 73
331 #define TGSI_OPCODE_IF 74
333 #define TGSI_OPCODE_ELSE 77
334 #define TGSI_OPCODE_ENDIF 78
336 #define TGSI_OPCODE_PUSHA 81
337 #define TGSI_OPCODE_POPA 82
338 #define TGSI_OPCODE_CEIL 83
339 #define TGSI_OPCODE_I2F 84
340 #define TGSI_OPCODE_NOT 85
341 #define TGSI_OPCODE_TRUNC 86
342 #define TGSI_OPCODE_SHL 87
344 #define TGSI_OPCODE_AND 89
345 #define TGSI_OPCODE_OR 90
346 #define TGSI_OPCODE_MOD 91
347 #define TGSI_OPCODE_XOR 92
348 #define TGSI_OPCODE_SAD 93
349 #define TGSI_OPCODE_TXF 94
350 #define TGSI_OPCODE_TXQ 95
351 #define TGSI_OPCODE_CONT 96
352 #define TGSI_OPCODE_EMIT 97
353 #define TGSI_OPCODE_ENDPRIM 98
354 #define TGSI_OPCODE_BGNLOOP 99
355 #define TGSI_OPCODE_BGNSUB 100
356 #define TGSI_OPCODE_ENDLOOP 101
357 #define TGSI_OPCODE_ENDSUB 102
358 #define TGSI_OPCODE_TXQ_LZ 103 /* TXQ for mipmap level 0 */
360 #define TGSI_OPCODE_NOP 107
362 #define TGSI_OPCODE_NRM4 112
363 #define TGSI_OPCODE_CALLNZ 113
364 #define TGSI_OPCODE_IFC 114
365 #define TGSI_OPCODE_BREAKC 115
366 #define TGSI_OPCODE_KIL 116 /* conditional kill */
367 #define TGSI_OPCODE_END 117 /* aka HALT */
369 #define TGSI_OPCODE_F2I 119
370 #define TGSI_OPCODE_IDIV 120
371 #define TGSI_OPCODE_IMAX 121
372 #define TGSI_OPCODE_IMIN 122
373 #define TGSI_OPCODE_INEG 123
374 #define TGSI_OPCODE_ISGE 124
375 #define TGSI_OPCODE_ISHR 125
376 #define TGSI_OPCODE_ISLT 126
377 #define TGSI_OPCODE_F2U 127
378 #define TGSI_OPCODE_U2F 128
379 #define TGSI_OPCODE_UADD 129
380 #define TGSI_OPCODE_UDIV 130
381 #define TGSI_OPCODE_UMAD 131
382 #define TGSI_OPCODE_UMAX 132
383 #define TGSI_OPCODE_UMIN 133
384 #define TGSI_OPCODE_UMOD 134
385 #define TGSI_OPCODE_UMUL 135
386 #define TGSI_OPCODE_USEQ 136
387 #define TGSI_OPCODE_USGE 137
388 #define TGSI_OPCODE_USHR 138
389 #define TGSI_OPCODE_USLT 139
390 #define TGSI_OPCODE_USNE 140
391 #define TGSI_OPCODE_SWITCH 141
392 #define TGSI_OPCODE_CASE 142
393 #define TGSI_OPCODE_DEFAULT 143
394 #define TGSI_OPCODE_ENDSWITCH 144
396 /* resource related opcodes */
397 #define TGSI_OPCODE_SAMPLE 145
398 #define TGSI_OPCODE_SAMPLE_I 146
399 #define TGSI_OPCODE_SAMPLE_I_MS 147
400 #define TGSI_OPCODE_SAMPLE_B 148
401 #define TGSI_OPCODE_SAMPLE_C 149
402 #define TGSI_OPCODE_SAMPLE_C_LZ 150
403 #define TGSI_OPCODE_SAMPLE_D 151
404 #define TGSI_OPCODE_SAMPLE_L 152
405 #define TGSI_OPCODE_GATHER4 153
406 #define TGSI_OPCODE_SVIEWINFO 154
407 #define TGSI_OPCODE_SAMPLE_POS 155
408 #define TGSI_OPCODE_SAMPLE_INFO 156
410 #define TGSI_OPCODE_UARL 157
411 #define TGSI_OPCODE_UCMP 158
412 #define TGSI_OPCODE_IABS 159
413 #define TGSI_OPCODE_ISSG 160
415 #define TGSI_OPCODE_LOAD 161
416 #define TGSI_OPCODE_STORE 162
418 #define TGSI_OPCODE_MFENCE 163
419 #define TGSI_OPCODE_LFENCE 164
420 #define TGSI_OPCODE_SFENCE 165
421 #define TGSI_OPCODE_BARRIER 166
423 #define TGSI_OPCODE_ATOMUADD 167
424 #define TGSI_OPCODE_ATOMXCHG 168
425 #define TGSI_OPCODE_ATOMCAS 169
426 #define TGSI_OPCODE_ATOMAND 170
427 #define TGSI_OPCODE_ATOMOR 171
428 #define TGSI_OPCODE_ATOMXOR 172
429 #define TGSI_OPCODE_ATOMUMIN 173
430 #define TGSI_OPCODE_ATOMUMAX 174
431 #define TGSI_OPCODE_ATOMIMIN 175
432 #define TGSI_OPCODE_ATOMIMAX 176
434 #define TGSI_OPCODE_LAST 177
436 #define TGSI_SAT_NONE 0 /* do not saturate */
437 #define TGSI_SAT_ZERO_ONE 1 /* clamp to [0,1] */
438 #define TGSI_SAT_MINUS_PLUS_ONE 2 /* clamp to [-1,1] */
441 * Opcode is the operation code to execute. A given operation defines the
442 * semantics how the source registers (if any) are interpreted and what is
443 * written to the destination registers (if any) as a result of execution.
445 * NumDstRegs and NumSrcRegs is the number of destination and source registers,
446 * respectively. For a given operation code, those numbers are fixed and are
447 * present here only for convenience.
449 * If Predicate is TRUE, tgsi_instruction_predicate token immediately follows.
451 * Saturate controls how are final results in destination registers modified.
454 struct tgsi_instruction
456 unsigned Type
: 4; /* TGSI_TOKEN_TYPE_INSTRUCTION */
457 unsigned NrTokens
: 8; /* UINT */
458 unsigned Opcode
: 8; /* TGSI_OPCODE_ */
459 unsigned Saturate
: 2; /* TGSI_SAT_ */
460 unsigned NumDstRegs
: 2; /* UINT */
461 unsigned NumSrcRegs
: 4; /* UINT */
462 unsigned Predicate
: 1; /* BOOL */
464 unsigned Texture
: 1;
465 unsigned Padding
: 1;
469 * If tgsi_instruction::Label is TRUE, tgsi_instruction_label follows.
471 * If tgsi_instruction::Texture is TRUE, tgsi_instruction_texture follows.
472 * if texture instruction has a number of offsets,
473 * then tgsi_instruction::Texture::NumOffset of tgsi_texture_offset follow.
475 * Then, tgsi_instruction::NumDstRegs of tgsi_dst_register follow.
477 * Then, tgsi_instruction::NumSrcRegs of tgsi_src_register follow.
479 * tgsi_instruction::NrTokens contains the total number of words that make the
480 * instruction, including the instruction word.
483 #define TGSI_SWIZZLE_X 0
484 #define TGSI_SWIZZLE_Y 1
485 #define TGSI_SWIZZLE_Z 2
486 #define TGSI_SWIZZLE_W 3
488 struct tgsi_instruction_label
490 unsigned Label
: 24; /* UINT */
491 unsigned Padding
: 8;
494 #define TGSI_TEXTURE_BUFFER 0
495 #define TGSI_TEXTURE_1D 1
496 #define TGSI_TEXTURE_2D 2
497 #define TGSI_TEXTURE_3D 3
498 #define TGSI_TEXTURE_CUBE 4
499 #define TGSI_TEXTURE_RECT 5
500 #define TGSI_TEXTURE_SHADOW1D 6
501 #define TGSI_TEXTURE_SHADOW2D 7
502 #define TGSI_TEXTURE_SHADOWRECT 8
503 #define TGSI_TEXTURE_1D_ARRAY 9
504 #define TGSI_TEXTURE_2D_ARRAY 10
505 #define TGSI_TEXTURE_SHADOW1D_ARRAY 11
506 #define TGSI_TEXTURE_SHADOW2D_ARRAY 12
507 #define TGSI_TEXTURE_SHADOWCUBE 13
508 #define TGSI_TEXTURE_2D_MSAA 14
509 #define TGSI_TEXTURE_2D_ARRAY_MSAA 15
510 #define TGSI_TEXTURE_UNKNOWN 16
511 #define TGSI_TEXTURE_COUNT 17
513 struct tgsi_instruction_texture
515 unsigned Texture
: 8; /* TGSI_TEXTURE_ */
516 unsigned NumOffsets
: 4;
517 unsigned Padding
: 20;
520 /* for texture offsets in GLSL and DirectX.
521 * Generally these always come from TGSI_FILE_IMMEDIATE,
522 * however DX11 appears to have the capability to do
523 * non-constant texture offsets.
525 struct tgsi_texture_offset
528 unsigned File
: 4; /**< one of TGSI_FILE_x */
529 unsigned SwizzleX
: 2; /* TGSI_SWIZZLE_x */
530 unsigned SwizzleY
: 2; /* TGSI_SWIZZLE_x */
531 unsigned SwizzleZ
: 2; /* TGSI_SWIZZLE_x */
532 unsigned Padding
: 6;
536 * For SM3, the following constraint applies.
537 * - Swizzle is either set to identity or replicate.
539 struct tgsi_instruction_predicate
541 int Index
: 16; /* SINT */
542 unsigned SwizzleX
: 2; /* TGSI_SWIZZLE_x */
543 unsigned SwizzleY
: 2; /* TGSI_SWIZZLE_x */
544 unsigned SwizzleZ
: 2; /* TGSI_SWIZZLE_x */
545 unsigned SwizzleW
: 2; /* TGSI_SWIZZLE_x */
546 unsigned Negate
: 1; /* BOOL */
547 unsigned Padding
: 7;
551 * File specifies the register array to access.
553 * Index specifies the element number of a register in the register file.
555 * If Indirect is TRUE, Index should be offset by the X component of a source
556 * register that follows. The register can be now fetched into local storage
557 * for further processing.
559 * If Negate is TRUE, all components of the fetched register are negated.
561 * The fetched register components are swizzled according to SwizzleX, SwizzleY,
562 * SwizzleZ and SwizzleW.
566 struct tgsi_src_register
568 unsigned File
: 4; /* TGSI_FILE_ */
569 unsigned Indirect
: 1; /* BOOL */
570 unsigned Dimension
: 1; /* BOOL */
571 int Index
: 16; /* SINT */
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 Absolute
: 1; /* BOOL */
577 unsigned Negate
: 1; /* BOOL */
581 * If tgsi_src_register::Modifier is TRUE, tgsi_src_register_modifier follows.
583 * Then, if tgsi_src_register::Indirect is TRUE, another tgsi_src_register
586 * Then, if tgsi_src_register::Dimension is TRUE, tgsi_dimension follows.
590 struct tgsi_dimension
592 unsigned Indirect
: 1; /* BOOL */
593 unsigned Dimension
: 1; /* BOOL */
594 unsigned Padding
: 14;
595 int Index
: 16; /* SINT */
598 struct tgsi_dst_register
600 unsigned File
: 4; /* TGSI_FILE_ */
601 unsigned WriteMask
: 4; /* TGSI_WRITEMASK_ */
602 unsigned Indirect
: 1; /* BOOL */
603 unsigned Dimension
: 1; /* BOOL */
604 int Index
: 16; /* SINT */
605 unsigned Padding
: 6;
613 #endif /* P_SHADER_TOKENS_H */