summaryrefslogtreecommitdiff
path: root/src/gallium/include/pipe/p_shader_tokens.h
blob: b47f4971f15f3070f76c9ff114db09ce226fc793 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
/**************************************************************************
 * 
 * Copyright 2008 Tungsten Graphics, Inc., Cedar Park, Texas.
 * Copyright 2009 VMware, Inc.
 * All Rights Reserved.
 * 
 * Permission is hereby granted, free of charge, to any person obtaining a
 * copy of this software and associated documentation files (the
 * "Software"), to deal in the Software without restriction, including
 * without limitation the rights to use, copy, modify, merge, publish,
 * distribute, sub license, and/or sell copies of the Software, and to
 * permit persons to whom the Software is furnished to do so, subject to
 * the following conditions:
 * 
 * The above copyright notice and this permission notice (including the
 * next paragraph) shall be included in all copies or substantial portions
 * of the Software.
 * 
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
 * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR
 * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
 * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
 * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 * 
 **************************************************************************/

#ifndef P_SHADER_TOKENS_H
#define P_SHADER_TOKENS_H

#ifdef __cplusplus
extern "C" {
#endif

#include "p_compiler.h"


struct tgsi_header
{
   unsigned HeaderSize : 8;
   unsigned BodySize   : 24;
};

#define TGSI_PROCESSOR_FRAGMENT  0
#define TGSI_PROCESSOR_VERTEX    1
#define TGSI_PROCESSOR_GEOMETRY  2

struct tgsi_processor
{
   unsigned Processor  : 4;  /* TGSI_PROCESSOR_ */
   unsigned Padding    : 28;
};

#define TGSI_TOKEN_TYPE_DECLARATION    0
#define TGSI_TOKEN_TYPE_IMMEDIATE      1
#define TGSI_TOKEN_TYPE_INSTRUCTION    2
#define TGSI_TOKEN_TYPE_PROPERTY       3

struct tgsi_token
{
   unsigned Type       : 4;  /**< TGSI_TOKEN_TYPE_x */
   unsigned NrTokens   : 8;  /**< UINT */
   unsigned Padding    : 20;
};

enum tgsi_file_type {
   TGSI_FILE_NULL         =0,
   TGSI_FILE_CONSTANT     =1,
   TGSI_FILE_INPUT        =2,
   TGSI_FILE_OUTPUT       =3,
   TGSI_FILE_TEMPORARY    =4,
   TGSI_FILE_SAMPLER      =5,
   TGSI_FILE_ADDRESS      =6,
   TGSI_FILE_IMMEDIATE    =7,
   TGSI_FILE_LOOP         =8,
   TGSI_FILE_PREDICATE    =9,
   TGSI_FILE_SYSTEM_VALUE =10,
   TGSI_FILE_COUNT      /**< how many TGSI_FILE_ types */
};


#define TGSI_WRITEMASK_NONE     0x00
#define TGSI_WRITEMASK_X        0x01
#define TGSI_WRITEMASK_Y        0x02
#define TGSI_WRITEMASK_XY       0x03
#define TGSI_WRITEMASK_Z        0x04
#define TGSI_WRITEMASK_XZ       0x05
#define TGSI_WRITEMASK_YZ       0x06
#define TGSI_WRITEMASK_XYZ      0x07
#define TGSI_WRITEMASK_W        0x08
#define TGSI_WRITEMASK_XW       0x09
#define TGSI_WRITEMASK_YW       0x0A
#define TGSI_WRITEMASK_XYW      0x0B
#define TGSI_WRITEMASK_ZW       0x0C
#define TGSI_WRITEMASK_XZW      0x0D
#define TGSI_WRITEMASK_YZW      0x0E
#define TGSI_WRITEMASK_XYZW     0x0F

#define TGSI_INTERPOLATE_CONSTANT      0
#define TGSI_INTERPOLATE_LINEAR        1
#define TGSI_INTERPOLATE_PERSPECTIVE   2
#define TGSI_INTERPOLATE_COUNT         3

struct tgsi_declaration
{
   unsigned Type        : 4;  /**< TGSI_TOKEN_TYPE_DECLARATION */
   unsigned NrTokens    : 8;  /**< UINT */
   unsigned File        : 4;  /**< one of TGSI_FILE_x */
   unsigned UsageMask   : 4;  /**< bitmask of TGSI_WRITEMASK_x flags */
   unsigned Interpolate : 4;  /**< one of TGSI_INTERPOLATE_x */
   unsigned Dimension   : 1;  /**< any extra dimension info? */
   unsigned Semantic    : 1;  /**< BOOL, any semantic info? */
   unsigned Centroid    : 1;  /**< centroid sampling? */
   unsigned Invariant   : 1;  /**< invariant optimization? */
   unsigned Padding     : 4;
};

struct tgsi_declaration_range
{
   unsigned First   : 16; /**< UINT */
   unsigned Last    : 16; /**< UINT */
};

struct tgsi_declaration_dimension
{
   unsigned Index2D:16; /**< UINT */
   unsigned Padding:16;
};

#define TGSI_SEMANTIC_POSITION   0
#define TGSI_SEMANTIC_COLOR      1
#define TGSI_SEMANTIC_BCOLOR     2  /**< back-face color */
#define TGSI_SEMANTIC_FOG        3
#define TGSI_SEMANTIC_PSIZE      4
#define TGSI_SEMANTIC_GENERIC    5
#define TGSI_SEMANTIC_NORMAL     6
#define TGSI_SEMANTIC_FACE       7
#define TGSI_SEMANTIC_EDGEFLAG   8
#define TGSI_SEMANTIC_PRIMID     9
#define TGSI_SEMANTIC_INSTANCEID 10
#define TGSI_SEMANTIC_COUNT      11 /**< number of semantic values */

struct tgsi_declaration_semantic
{
   unsigned Name           : 8;  /**< one of TGSI_SEMANTIC_x */
   unsigned Index          : 16; /**< UINT */
   unsigned Padding        : 8;
};

#define TGSI_IMM_FLOAT32   0
#define TGSI_IMM_UINT32    1
#define TGSI_IMM_INT32     2

struct tgsi_immediate
{
   unsigned Type       : 4;  /**< TGSI_TOKEN_TYPE_IMMEDIATE */
   unsigned NrTokens   : 8;  /**< UINT */
   unsigned DataType   : 4;  /**< one of TGSI_IMM_x */
   unsigned Padding    : 16;
};

union tgsi_immediate_data
{
   float Float;
   unsigned Uint;
   int Int;
};

#define TGSI_PROPERTY_GS_INPUT_PRIM          0
#define TGSI_PROPERTY_GS_OUTPUT_PRIM         1
#define TGSI_PROPERTY_GS_MAX_VERTICES        2
#define TGSI_PROPERTY_COUNT                  3

struct tgsi_property {
   unsigned Type         : 4;  /**< TGSI_TOKEN_TYPE_PROPERTY */
   unsigned NrTokens     : 8;  /**< UINT */
   unsigned PropertyName : 8;  /**< one of TGSI_PROPERTY */
   unsigned Padding      : 12;
};

struct tgsi_property_data {
   unsigned Data;
};

/* TGSI opcodes.  
 * 
 * For more information on semantics of opcodes and
 * which APIs are known to use which opcodes, see
 * auxiliary/tgsi/tgsi-instruction-set.txt
 */
#define TGSI_OPCODE_ARL                 0
#define TGSI_OPCODE_MOV                 1
#define TGSI_OPCODE_LIT                 2
#define TGSI_OPCODE_RCP                 3
#define TGSI_OPCODE_RSQ                 4
#define TGSI_OPCODE_EXP                 5
#define TGSI_OPCODE_LOG                 6
#define TGSI_OPCODE_MUL                 7
#define TGSI_OPCODE_ADD                 8
#define TGSI_OPCODE_DP3                 9
#define TGSI_OPCODE_DP4                 10
#define TGSI_OPCODE_DST                 11
#define TGSI_OPCODE_MIN                 12
#define TGSI_OPCODE_MAX                 13
#define TGSI_OPCODE_SLT                 14
#define TGSI_OPCODE_SGE                 15
#define TGSI_OPCODE_MAD                 16
#define TGSI_OPCODE_SUB                 17
#define TGSI_OPCODE_LRP                 18
#define TGSI_OPCODE_CND                 19
                                /* gap */
#define TGSI_OPCODE_DP2A                21
                                /* gap */
#define TGSI_OPCODE_FRC                 24
#define TGSI_OPCODE_CLAMP               25
#define TGSI_OPCODE_FLR                 26
#define TGSI_OPCODE_ROUND               27
#define TGSI_OPCODE_EX2                 28
#define TGSI_OPCODE_LG2                 29
#define TGSI_OPCODE_POW                 30
#define TGSI_OPCODE_XPD                 31
                                /* gap */
#define TGSI_OPCODE_ABS                 33
#define TGSI_OPCODE_RCC                 34
#define TGSI_OPCODE_DPH                 35
#define TGSI_OPCODE_COS                 36
#define TGSI_OPCODE_DDX                 37
#define TGSI_OPCODE_DDY                 38
#define TGSI_OPCODE_KILP                39  /* predicated kill */
#define TGSI_OPCODE_PK2H                40
#define TGSI_OPCODE_PK2US               41
#define TGSI_OPCODE_PK4B                42
#define TGSI_OPCODE_PK4UB               43
#define TGSI_OPCODE_RFL                 44
#define TGSI_OPCODE_SEQ                 45
#define TGSI_OPCODE_SFL                 46
#define TGSI_OPCODE_SGT                 47
#define TGSI_OPCODE_SIN                 48
#define TGSI_OPCODE_SLE                 49
#define TGSI_OPCODE_SNE                 50
#define TGSI_OPCODE_STR                 51
#define TGSI_OPCODE_TEX                 52
#define TGSI_OPCODE_TXD                 53
#define TGSI_OPCODE_TXP                 54
#define TGSI_OPCODE_UP2H                55
#define TGSI_OPCODE_UP2US               56
#define TGSI_OPCODE_UP4B                57
#define TGSI_OPCODE_UP4UB               58
#define TGSI_OPCODE_X2D                 59
#define TGSI_OPCODE_ARA                 60
#define TGSI_OPCODE_ARR                 61
#define TGSI_OPCODE_BRA                 62
#define TGSI_OPCODE_CAL                 63
#define TGSI_OPCODE_RET                 64
#define TGSI_OPCODE_SSG                 65 /* SGN */
#define TGSI_OPCODE_CMP                 66
#define TGSI_OPCODE_SCS                 67
#define TGSI_OPCODE_TXB                 68
#define TGSI_OPCODE_NRM                 69
#define TGSI_OPCODE_DIV                 70
#define TGSI_OPCODE_DP2                 71
#define TGSI_OPCODE_TXL                 72
#define TGSI_OPCODE_BRK                 73
#define TGSI_OPCODE_IF                  74
#define TGSI_OPCODE_BGNFOR              75
#define TGSI_OPCODE_REP                 76
#define TGSI_OPCODE_ELSE                77
#define TGSI_OPCODE_ENDIF               78
#define TGSI_OPCODE_ENDFOR              79
#define TGSI_OPCODE_ENDREP              80
#define TGSI_OPCODE_PUSHA               81
#define TGSI_OPCODE_POPA                82
#define TGSI_OPCODE_CEIL                83
#define TGSI_OPCODE_I2F                 84
#define TGSI_OPCODE_NOT                 85
#define TGSI_OPCODE_TRUNC               86
#define TGSI_OPCODE_SHL                 87
                                /* gap */
#define TGSI_OPCODE_AND                 89
#define TGSI_OPCODE_OR                  90
#define TGSI_OPCODE_MOD                 91
#define TGSI_OPCODE_XOR                 92
#define TGSI_OPCODE_SAD                 93
#define TGSI_OPCODE_TXF                 94
#define TGSI_OPCODE_TXQ                 95
#define TGSI_OPCODE_CONT                96
#define TGSI_OPCODE_EMIT                97
#define TGSI_OPCODE_ENDPRIM             98
#define TGSI_OPCODE_BGNLOOP             99
#define TGSI_OPCODE_BGNSUB              100
#define TGSI_OPCODE_ENDLOOP             101
#define TGSI_OPCODE_ENDSUB              102
                                /* gap */
#define TGSI_OPCODE_NOP                 107
                                /* gap */
#define TGSI_OPCODE_NRM4                112
#define TGSI_OPCODE_CALLNZ              113
#define TGSI_OPCODE_IFC                 114
#define TGSI_OPCODE_BREAKC              115
#define TGSI_OPCODE_KIL                 116  /* conditional kill */
#define TGSI_OPCODE_END                 117  /* aka HALT */
                                /* gap */
#define TGSI_OPCODE_F2I                 119
#define TGSI_OPCODE_IDIV                120
#define TGSI_OPCODE_IMAX                121
#define TGSI_OPCODE_IMIN                122
#define TGSI_OPCODE_INEG                123
#define TGSI_OPCODE_ISGE                124
#define TGSI_OPCODE_ISHR                125
#define TGSI_OPCODE_ISLT                126
#define TGSI_OPCODE_F2U                 127
#define TGSI_OPCODE_U2F                 128
#define TGSI_OPCODE_UADD                129
#define TGSI_OPCODE_UDIV                130
#define TGSI_OPCODE_UMAD                131
#define TGSI_OPCODE_UMAX                132
#define TGSI_OPCODE_UMIN                133
#define TGSI_OPCODE_UMOD                134
#define TGSI_OPCODE_UMUL                135
#define TGSI_OPCODE_USEQ                136
#define TGSI_OPCODE_USGE                137
#define TGSI_OPCODE_USHR                138
#define TGSI_OPCODE_USLT                139
#define TGSI_OPCODE_USNE                140
#define TGSI_OPCODE_SWITCH              141
#define TGSI_OPCODE_CASE                142
#define TGSI_OPCODE_DEFAULT             143
#define TGSI_OPCODE_ENDSWITCH           144
#define TGSI_OPCODE_LAST                145

#define TGSI_SAT_NONE            0  /* do not saturate */
#define TGSI_SAT_ZERO_ONE        1  /* clamp to [0,1] */
#define TGSI_SAT_MINUS_PLUS_ONE  2  /* clamp to [-1,1] */

/**
 * Opcode is the operation code to execute. A given operation defines the
 * semantics how the source registers (if any) are interpreted and what is
 * written to the destination registers (if any) as a result of execution.
 *
 * NumDstRegs and NumSrcRegs is the number of destination and source registers,
 * respectively. For a given operation code, those numbers are fixed and are
 * present here only for convenience.
 *
 * If Predicate is TRUE, tgsi_instruction_predicate token immediately follows.
 *
 * Saturate controls how are final results in destination registers modified.
 */

struct tgsi_instruction
{
   unsigned Type       : 4;  /* TGSI_TOKEN_TYPE_INSTRUCTION */
   unsigned NrTokens   : 8;  /* UINT */
   unsigned Opcode     : 8;  /* TGSI_OPCODE_ */
   unsigned Saturate   : 2;  /* TGSI_SAT_ */
   unsigned NumDstRegs : 2;  /* UINT */
   unsigned NumSrcRegs : 4;  /* UINT */
   unsigned Predicate  : 1;  /* BOOL */
   unsigned Label      : 1;
   unsigned Texture    : 1;
   unsigned Padding    : 1;
};

/*
 * If tgsi_instruction::Label is TRUE, tgsi_instruction_label follows.
 *
 * If tgsi_instruction::Texture is TRUE, tgsi_instruction_texture follows.
 * 
 * Then, tgsi_instruction::NumDstRegs of tgsi_dst_register follow.
 * 
 * Then, tgsi_instruction::NumSrcRegs of tgsi_src_register follow.
 *
 * tgsi_instruction::NrTokens contains the total number of words that make the
 * instruction, including the instruction word.
 */

#define TGSI_SWIZZLE_X      0
#define TGSI_SWIZZLE_Y      1
#define TGSI_SWIZZLE_Z      2
#define TGSI_SWIZZLE_W      3

struct tgsi_instruction_label
{
   unsigned Label    : 24;   /* UINT */
   unsigned Padding  : 8;
};

#define TGSI_TEXTURE_UNKNOWN        0
#define TGSI_TEXTURE_1D             1
#define TGSI_TEXTURE_2D             2
#define TGSI_TEXTURE_3D             3
#define TGSI_TEXTURE_CUBE           4
#define TGSI_TEXTURE_RECT           5
#define TGSI_TEXTURE_SHADOW1D       6
#define TGSI_TEXTURE_SHADOW2D       7
#define TGSI_TEXTURE_SHADOWRECT     8
#define TGSI_TEXTURE_COUNT          9

struct tgsi_instruction_texture
{
   unsigned Texture  : 8;    /* TGSI_TEXTURE_ */
   unsigned Padding  : 24;
};

/*
 * For SM3, the following constraint applies.
 *   - Swizzle is either set to identity or replicate.
 */
struct tgsi_instruction_predicate
{
   int      Index    : 16; /* SINT */
   unsigned SwizzleX : 2;  /* TGSI_SWIZZLE_x */
   unsigned SwizzleY : 2;  /* TGSI_SWIZZLE_x */
   unsigned SwizzleZ : 2;  /* TGSI_SWIZZLE_x */
   unsigned SwizzleW : 2;  /* TGSI_SWIZZLE_x */
   unsigned Negate   : 1;  /* BOOL */
   unsigned Padding  : 7;
};

/**
 * File specifies the register array to access.
 *
 * Index specifies the element number of a register in the register file.
 *
 * If Indirect is TRUE, Index should be offset by the X component of a source
 * register that follows. The register can be now fetched into local storage
 * for further processing.
 *
 * If Negate is TRUE, all components of the fetched register are negated.
 *
 * The fetched register components are swizzled according to SwizzleX, SwizzleY,
 * SwizzleZ and SwizzleW.
 *
 */

struct tgsi_src_register
{
   unsigned File        : 4;  /* TGSI_FILE_ */
   unsigned Indirect    : 1;  /* BOOL */
   unsigned Dimension   : 1;  /* BOOL */
   int      Index       : 16; /* SINT */
   unsigned SwizzleX    : 2;  /* TGSI_SWIZZLE_ */
   unsigned SwizzleY    : 2;  /* TGSI_SWIZZLE_ */
   unsigned SwizzleZ    : 2;  /* TGSI_SWIZZLE_ */
   unsigned SwizzleW    : 2;  /* TGSI_SWIZZLE_ */
   unsigned Absolute    : 1;    /* BOOL */
   unsigned Negate      : 1;    /* BOOL */
};

/**
 * If tgsi_src_register::Modifier is TRUE, tgsi_src_register_modifier follows.
 * 
 * Then, if tgsi_src_register::Indirect is TRUE, another tgsi_src_register
 * follows.
 *
 * Then, if tgsi_src_register::Dimension is TRUE, tgsi_dimension follows.
 */


struct tgsi_dimension
{
   unsigned Indirect    : 1;  /* BOOL */
   unsigned Dimension   : 1;  /* BOOL */
   unsigned Padding     : 14;
   int      Index       : 16; /* SINT */
};

struct tgsi_dst_register
{
   unsigned File        : 4;  /* TGSI_FILE_ */
   unsigned WriteMask   : 4;  /* TGSI_WRITEMASK_ */
   unsigned Indirect    : 1;  /* BOOL */
   unsigned Dimension   : 1;  /* BOOL */
   int      Index       : 16; /* SINT */
   unsigned Padding     : 6;
};


#ifdef __cplusplus
}
#endif

#endif /* P_SHADER_TOKENS_H */