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