1 /**************************************************************************
3 * Copyright 2008 Tungsten Graphics, Inc., Cedar Park, Texas.
6 * Permission is hereby granted, free of charge, to any person obtaining a
7 * copy of this software and associated documentation files (the
8 * "Software"), to deal in the Software without restriction, including
9 * without limitation the rights to use, copy, modify, merge, publish,
10 * distribute, sub license, and/or sell copies of the Software, and to
11 * permit persons to whom the Software is furnished to do so, subject to
12 * the following conditions:
14 * The above copyright notice and this permission notice (including the
15 * next paragraph) shall be included in all copies or substantial portions
18 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
19 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
20 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
21 * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR
22 * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
23 * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
24 * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
26 **************************************************************************/
35 #include "p_compiler.h"
39 unsigned MajorVersion
: 8;
40 unsigned MinorVersion
: 8;
41 unsigned Padding
: 16;
46 unsigned HeaderSize
: 8;
47 unsigned BodySize
: 24;
50 #define TGSI_PROCESSOR_FRAGMENT 0
51 #define TGSI_PROCESSOR_VERTEX 1
52 #define TGSI_PROCESSOR_GEOMETRY 2
56 unsigned Processor
: 4; /* TGSI_PROCESSOR_ */
57 unsigned Padding
: 28;
60 #define TGSI_TOKEN_TYPE_DECLARATION 0
61 #define TGSI_TOKEN_TYPE_IMMEDIATE 1
62 #define TGSI_TOKEN_TYPE_INSTRUCTION 2
66 unsigned Type
: 4; /**< TGSI_TOKEN_TYPE_x */
67 unsigned NrTokens
: 8; /**< UINT */
68 unsigned Padding
: 19;
69 unsigned Extended
: 1; /**< BOOL */
74 TGSI_FILE_CONSTANT
=1,
77 TGSI_FILE_TEMPORARY
=4,
80 TGSI_FILE_IMMEDIATE
=7,
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_COUNT 3
107 struct tgsi_declaration
109 unsigned Type
: 4; /**< TGSI_TOKEN_TYPE_DECLARATION */
110 unsigned NrTokens
: 8; /**< UINT */
111 unsigned File
: 4; /**< one of TGSI_FILE_x */
112 unsigned UsageMask
: 4; /**< bitmask of TGSI_WRITEMASK_x flags */
113 unsigned Interpolate
: 4; /**< one of TGSI_INTERPOLATE_x */
114 unsigned Semantic
: 1; /**< BOOL, any semantic info? */
115 unsigned Centroid
: 1; /**< centroid sampling? */
116 unsigned Invariant
: 1; /**< invariant optimization? */
117 unsigned Padding
: 4;
118 unsigned Extended
: 1; /**< BOOL */
121 struct tgsi_declaration_range
123 unsigned First
: 16; /**< UINT */
124 unsigned Last
: 16; /**< UINT */
127 #define TGSI_SEMANTIC_POSITION 0
128 #define TGSI_SEMANTIC_COLOR 1
129 #define TGSI_SEMANTIC_BCOLOR 2 /**< back-face color */
130 #define TGSI_SEMANTIC_FOG 3
131 #define TGSI_SEMANTIC_PSIZE 4
132 #define TGSI_SEMANTIC_GENERIC 5
133 #define TGSI_SEMANTIC_NORMAL 6
134 #define TGSI_SEMANTIC_FACE 7
135 #define TGSI_SEMANTIC_COUNT 8 /**< number of semantic values */
137 struct tgsi_declaration_semantic
139 unsigned SemanticName
: 8; /**< one of TGSI_SEMANTIC_x */
140 unsigned SemanticIndex
: 16; /**< UINT */
141 unsigned Padding
: 8;
144 #define TGSI_IMM_FLOAT32 0
146 struct tgsi_immediate
148 unsigned Type
: 4; /**< TGSI_TOKEN_TYPE_IMMEDIATE */
149 unsigned NrTokens
: 8; /**< UINT */
150 unsigned DataType
: 4; /**< one of TGSI_IMM_x */
151 unsigned Padding
: 15;
152 unsigned Extended
: 1; /**< BOOL */
155 struct tgsi_immediate_float32
161 * GL_NV_vertex_program
163 #define TGSI_OPCODE_ARL 0
164 #define TGSI_OPCODE_MOV 1
165 #define TGSI_OPCODE_LIT 2
166 #define TGSI_OPCODE_RCP 3
167 #define TGSI_OPCODE_RSQ 4
168 #define TGSI_OPCODE_EXP 5
169 #define TGSI_OPCODE_LOG 6
170 #define TGSI_OPCODE_MUL 7
171 #define TGSI_OPCODE_ADD 8
172 #define TGSI_OPCODE_DP3 9
173 #define TGSI_OPCODE_DP4 10
174 #define TGSI_OPCODE_DST 11
175 #define TGSI_OPCODE_MIN 12
176 #define TGSI_OPCODE_MAX 13
177 #define TGSI_OPCODE_SLT 14
178 #define TGSI_OPCODE_SGE 15
179 #define TGSI_OPCODE_MAD 16
182 * GL_ATI_fragment_shader
184 #define TGSI_OPCODE_SUB 17
185 #define TGSI_OPCODE_DOT3 TGSI_OPCODE_DP3
186 #define TGSI_OPCODE_DOT4 TGSI_OPCODE_DP4
187 #define TGSI_OPCODE_LERP 18
188 #define TGSI_OPCODE_CND 19
189 #define TGSI_OPCODE_CND0 20
190 #define TGSI_OPCODE_DOT2ADD 21
193 * GL_EXT_vertex_shader
195 #define TGSI_OPCODE_INDEX 22 /* considered for removal */
196 #define TGSI_OPCODE_NEGATE 23 /* considered for removal */
197 #define TGSI_OPCODE_MADD TGSI_OPCODE_MAD
198 #define TGSI_OPCODE_FRAC 24
199 #define TGSI_OPCODE_SETGE TGSI_OPCODE_SGE
200 #define TGSI_OPCODE_SETLT TGSI_OPCODE_SLT
201 #define TGSI_OPCODE_CLAMP 25
202 #define TGSI_OPCODE_FLOOR 26
203 #define TGSI_OPCODE_ROUND 27
204 #define TGSI_OPCODE_EXPBASE2 28
205 #define TGSI_OPCODE_LOGBASE2 29
206 #define TGSI_OPCODE_POWER 30
207 #define TGSI_OPCODE_RECIP TGSI_OPCODE_RCP
208 #define TGSI_OPCODE_RECIPSQRT TGSI_OPCODE_RSQ
209 #define TGSI_OPCODE_CROSSPRODUCT 31
210 #define TGSI_OPCODE_MULTIPLYMATRIX 32 /* considered for removal */
213 * GL_NV_vertex_program1_1
215 #define TGSI_OPCODE_ABS 33
216 #define TGSI_OPCODE_RCC 34
217 #define TGSI_OPCODE_DPH 35
220 * GL_NV_fragment_program
222 #define TGSI_OPCODE_COS 36
223 #define TGSI_OPCODE_DDX 37
224 #define TGSI_OPCODE_DDY 38
225 #define TGSI_OPCODE_EX2 TGSI_OPCODE_EXPBASE2
226 #define TGSI_OPCODE_FLR TGSI_OPCODE_FLOOR
227 #define TGSI_OPCODE_FRC TGSI_OPCODE_FRAC
228 #define TGSI_OPCODE_KILP 39 /* predicated kill */
229 #define TGSI_OPCODE_LG2 TGSI_OPCODE_LOGBASE2
230 #define TGSI_OPCODE_LRP TGSI_OPCODE_LERP
231 #define TGSI_OPCODE_PK2H 40
232 #define TGSI_OPCODE_PK2US 41
233 #define TGSI_OPCODE_PK4B 42
234 #define TGSI_OPCODE_PK4UB 43
235 #define TGSI_OPCODE_POW TGSI_OPCODE_POWER
236 #define TGSI_OPCODE_RFL 44
237 #define TGSI_OPCODE_SEQ 45
238 #define TGSI_OPCODE_SFL 46
239 #define TGSI_OPCODE_SGT 47
240 #define TGSI_OPCODE_SIN 48
241 #define TGSI_OPCODE_SLE 49
242 #define TGSI_OPCODE_SNE 50
243 #define TGSI_OPCODE_STR 51
244 #define TGSI_OPCODE_TEX 52
245 #define TGSI_OPCODE_TXD 53
246 #define TGSI_OPCODE_TXP 54
247 #define TGSI_OPCODE_UP2H 55
248 #define TGSI_OPCODE_UP2US 56
249 #define TGSI_OPCODE_UP4B 57
250 #define TGSI_OPCODE_UP4UB 58
251 #define TGSI_OPCODE_X2D 59
254 * GL_NV_vertex_program2
256 #define TGSI_OPCODE_ARA 60
257 #define TGSI_OPCODE_ARR 61
258 #define TGSI_OPCODE_BRA 62
259 #define TGSI_OPCODE_CAL 63
260 #define TGSI_OPCODE_RET 64
261 #define TGSI_OPCODE_SSG 65
264 * GL_ARB_vertex_program
266 #define TGSI_OPCODE_SWZ 118
267 #define TGSI_OPCODE_XPD TGSI_OPCODE_CROSSPRODUCT
270 * GL_ARB_fragment_program
272 #define TGSI_OPCODE_CMP 66
273 #define TGSI_OPCODE_KIL 116 /* conditional kill */
274 #define TGSI_OPCODE_SCS 67
275 #define TGSI_OPCODE_TXB 68
278 * GL_NV_fragment_program_option
283 * GL_NV_fragment_program2
285 #define TGSI_OPCODE_NRM 69
286 #define TGSI_OPCODE_DIV 70
287 #define TGSI_OPCODE_DP2 71
288 #define TGSI_OPCODE_DP2A TGSI_OPCODE_DOT2ADD
289 #define TGSI_OPCODE_TXL 72
290 #define TGSI_OPCODE_BRK 73
291 #define TGSI_OPCODE_IF 74
292 #define TGSI_OPCODE_LOOP 75
293 #define TGSI_OPCODE_REP 76
294 #define TGSI_OPCODE_ELSE 77
295 #define TGSI_OPCODE_ENDIF 78
296 #define TGSI_OPCODE_ENDLOOP 79
297 #define TGSI_OPCODE_ENDREP 80
300 * GL_NV_vertex_program2_option
304 * GL_NV_vertex_program3
306 #define TGSI_OPCODE_PUSHA 81
307 #define TGSI_OPCODE_POPA 82
312 #define TGSI_OPCODE_CEIL 83
313 #define TGSI_OPCODE_I2F 84
314 #define TGSI_OPCODE_NOT 85
315 #define TGSI_OPCODE_TRUNC 86
316 #define TGSI_OPCODE_SHL 87
317 #define TGSI_OPCODE_SHR 88
318 #define TGSI_OPCODE_AND 89
319 #define TGSI_OPCODE_OR 90
320 #define TGSI_OPCODE_MOD 91
321 #define TGSI_OPCODE_XOR 92
322 #define TGSI_OPCODE_SAD 93
323 #define TGSI_OPCODE_TXF 94
324 #define TGSI_OPCODE_TXQ 95
325 #define TGSI_OPCODE_CONT 96
328 * GL_NV_vertex_program4
330 /* Same as GL_NV_gpu_program4 */
333 * GL_NV_fragment_program4
335 /* Same as GL_NV_gpu_program4 */
338 * GL_NV_geometry_program4
340 /* Same as GL_NV_gpu_program4 */
341 #define TGSI_OPCODE_EMIT 97
342 #define TGSI_OPCODE_ENDPRIM 98
347 #define TGSI_OPCODE_BGNLOOP2 99
348 #define TGSI_OPCODE_BGNSUB 100
349 #define TGSI_OPCODE_ENDLOOP2 101
350 #define TGSI_OPCODE_ENDSUB 102
351 #define TGSI_OPCODE_INT TGSI_OPCODE_TRUNC
352 #define TGSI_OPCODE_NOISE1 103
353 #define TGSI_OPCODE_NOISE2 104
354 #define TGSI_OPCODE_NOISE3 105
355 #define TGSI_OPCODE_NOISE4 106
356 #define TGSI_OPCODE_NOP 107
361 #define TGSI_OPCODE_TEXKILL TGSI_OPCODE_KIL
366 /* CMP - use TGSI_OPCODE_CND0 */
371 /* CMP - use TGSI_OPCODE_CND0 */
376 #define TGSI_OPCODE_TEXLD TGSI_OPCODE_TEX
381 #define TGSI_OPCODE_M4X4 TGSI_OPCODE_MULTIPLYMATRIX
382 #define TGSI_OPCODE_M4X3 108
383 #define TGSI_OPCODE_M3X4 109
384 #define TGSI_OPCODE_M3X3 110
385 #define TGSI_OPCODE_M3X2 111
386 #define TGSI_OPCODE_CRS TGSI_OPCODE_XPD
387 #define TGSI_OPCODE_NRM4 112
388 #define TGSI_OPCODE_SINCOS TGSI_OPCODE_SCS
389 #define TGSI_OPCODE_TEXLDB TGSI_OPCODE_TXB
390 #define TGSI_OPCODE_DP2ADD TGSI_OPCODE_DP2A
395 #define TGSI_OPCODE_CALL TGSI_OPCODE_CAL
396 #define TGSI_OPCODE_CALLNZ 113
397 #define TGSI_OPCODE_IFC 114
398 #define TGSI_OPCODE_BREAK TGSI_OPCODE_BRK
399 #define TGSI_OPCODE_BREAKC 115
400 #define TGSI_OPCODE_DSX TGSI_OPCODE_DDX
401 #define TGSI_OPCODE_DSY TGSI_OPCODE_DDY
402 #define TGSI_OPCODE_TEXLDD TGSI_OPCODE_TXD
407 #define TGSI_OPCODE_EXPP TGSI_OPCODE_EXP
408 #define TGSI_OPCODE_LOGP TGSI_OPCODE_LG2
413 #define TGSI_OPCODE_SGN TGSI_OPCODE_SSG
414 #define TGSI_OPCODE_MOVA TGSI_OPCODE_ARR
415 /* EXPP - use TGSI_OPCODE_EX2 */
421 #define TGSI_OPCODE_END 117 /* aka HALT */
423 #define TGSI_OPCODE_LAST 119
425 #define TGSI_SAT_NONE 0 /* do not saturate */
426 #define TGSI_SAT_ZERO_ONE 1 /* clamp to [0,1] */
427 #define TGSI_SAT_MINUS_PLUS_ONE 2 /* clamp to [-1,1] */
430 * Opcode is the operation code to execute. A given operation defines the
431 * semantics how the source registers (if any) are interpreted and what is
432 * written to the destination registers (if any) as a result of execution.
434 * NumDstRegs and NumSrcRegs is the number of destination and source registers,
435 * respectively. For a given operation code, those numbers are fixed and are
436 * present here only for convenience.
438 * If Extended is TRUE, it is now executed.
440 * Saturate controls how are final results in destination registers modified.
443 struct tgsi_instruction
445 unsigned Type
: 4; /* TGSI_TOKEN_TYPE_INSTRUCTION */
446 unsigned NrTokens
: 8; /* UINT */
447 unsigned Opcode
: 8; /* TGSI_OPCODE_ */
448 unsigned Saturate
: 2; /* TGSI_SAT_ */
449 unsigned NumDstRegs
: 2; /* UINT */
450 unsigned NumSrcRegs
: 4; /* UINT */
451 unsigned Padding
: 3;
452 unsigned Extended
: 1; /* BOOL */
456 * If tgsi_instruction::Extended is TRUE, tgsi_instruction_ext follows.
458 * Then, tgsi_instruction::NumDstRegs of tgsi_dst_register follow.
460 * Then, tgsi_instruction::NumSrcRegs of tgsi_src_register follow.
462 * tgsi_instruction::NrTokens contains the total number of words that make the
463 * instruction, including the instruction word.
466 #define TGSI_INSTRUCTION_EXT_TYPE_NV 0
467 #define TGSI_INSTRUCTION_EXT_TYPE_LABEL 1
468 #define TGSI_INSTRUCTION_EXT_TYPE_TEXTURE 2
469 #define TGSI_INSTRUCTION_EXT_TYPE_PREDICATE 3
471 struct tgsi_instruction_ext
473 unsigned Type
: 4; /* TGSI_INSTRUCTION_EXT_TYPE_ */
474 unsigned Padding
: 27;
475 unsigned Extended
: 1; /* BOOL */
479 * If tgsi_instruction_ext::Type is TGSI_INSTRUCTION_EXT_TYPE_NV, it should
480 * be cast to tgsi_instruction_ext_nv.
482 * If tgsi_instruction_ext::Type is TGSI_INSTRUCTION_EXT_TYPE_LABEL, it
483 * should be cast to tgsi_instruction_ext_label.
485 * If tgsi_instruction_ext::Type is TGSI_INSTRUCTION_EXT_TYPE_TEXTURE, it
486 * should be cast to tgsi_instruction_ext_texture.
488 * If tgsi_instruction_ext::Type is TGSI_INSTRUCTION_EXT_TYPE_PREDICATE, it
489 * should be cast to tgsi_instruction_ext_predicate.
491 * If tgsi_instruction_ext::Extended is TRUE, another tgsi_instruction_ext
495 #define TGSI_PRECISION_DEFAULT 0
496 #define TGSI_PRECISION_FLOAT32 1
497 #define TGSI_PRECISION_FLOAT16 2
498 #define TGSI_PRECISION_FIXED12 3
509 #define TGSI_SWIZZLE_X 0
510 #define TGSI_SWIZZLE_Y 1
511 #define TGSI_SWIZZLE_Z 2
512 #define TGSI_SWIZZLE_W 3
515 * Precision controls the precision at which the operation should be executed.
517 * CondDstUpdate enables condition code register writes. When this field is
518 * TRUE, CondDstIndex specifies the index of the condition code register to
521 * CondFlowEnable enables conditional execution of the operation. When this
522 * field is TRUE, CondFlowIndex specifies the index of the condition code
523 * register to test against CondMask with component swizzle controled by
524 * CondSwizzleX, CondSwizzleY, CondSwizzleZ and CondSwizzleW. If the test fails,
525 * the operation is not executed.
528 struct tgsi_instruction_ext_nv
530 unsigned Type
: 4; /* TGSI_INSTRUCTION_EXT_TYPE_NV */
531 unsigned Precision
: 4; /* TGSI_PRECISION_ */
532 unsigned CondDstIndex
: 4; /* UINT */
533 unsigned CondFlowIndex
: 4; /* UINT */
534 unsigned CondMask
: 4; /* TGSI_CC_ */
535 unsigned CondSwizzleX
: 2; /* TGSI_SWIZZLE_ */
536 unsigned CondSwizzleY
: 2; /* TGSI_SWIZZLE_ */
537 unsigned CondSwizzleZ
: 2; /* TGSI_SWIZZLE_ */
538 unsigned CondSwizzleW
: 2; /* TGSI_SWIZZLE_ */
539 unsigned CondDstUpdate
: 1; /* BOOL */
540 unsigned CondFlowEnable
: 1; /* BOOL */
541 unsigned Padding
: 1;
542 unsigned Extended
: 1; /* BOOL */
545 struct tgsi_instruction_ext_label
547 unsigned Type
: 4; /* TGSI_INSTRUCTION_EXT_TYPE_LABEL */
548 unsigned Label
: 24; /* UINT */
549 unsigned Padding
: 3;
550 unsigned Extended
: 1; /* BOOL */
553 #define TGSI_TEXTURE_UNKNOWN 0
554 #define TGSI_TEXTURE_1D 1
555 #define TGSI_TEXTURE_2D 2
556 #define TGSI_TEXTURE_3D 3
557 #define TGSI_TEXTURE_CUBE 4
558 #define TGSI_TEXTURE_RECT 5
559 #define TGSI_TEXTURE_SHADOW1D 6
560 #define TGSI_TEXTURE_SHADOW2D 7
561 #define TGSI_TEXTURE_SHADOWRECT 8
562 #define TGSI_TEXTURE_COUNT 9
564 struct tgsi_instruction_ext_texture
566 unsigned Type
: 4; /* TGSI_INSTRUCTION_EXT_TYPE_TEXTURE */
567 unsigned Texture
: 8; /* TGSI_TEXTURE_ */
568 unsigned Padding
: 19;
569 unsigned Extended
: 1; /* BOOL */
572 struct tgsi_instruction_ext_predicate
574 unsigned Type
: 4; /* TGSI_INSTRUCTION_EXT_TYPE_PREDICATE */
575 unsigned PredDstIndex
: 4; /* UINT */
576 unsigned PredWriteMask
: 4; /* TGSI_WRITEMASK_ */
577 unsigned Padding
: 19;
578 unsigned Extended
: 1; /* BOOL */
582 * File specifies the register array to access.
584 * Index specifies the element number of a register in the register file.
586 * If Indirect is TRUE, Index should be offset by the X component of a source
587 * register that follows. The register can be now fetched into local storage
588 * for further processing.
590 * If Negate is TRUE, all components of the fetched register are negated.
592 * The fetched register components are swizzled according to SwizzleX, SwizzleY,
593 * SwizzleZ and SwizzleW.
595 * If Extended is TRUE, any further modifications to the source register are
596 * made to this temporary storage.
599 struct tgsi_src_register
601 unsigned File
: 4; /* TGSI_FILE_ */
602 unsigned SwizzleX
: 2; /* TGSI_SWIZZLE_ */
603 unsigned SwizzleY
: 2; /* TGSI_SWIZZLE_ */
604 unsigned SwizzleZ
: 2; /* TGSI_SWIZZLE_ */
605 unsigned SwizzleW
: 2; /* TGSI_SWIZZLE_ */
606 unsigned Negate
: 1; /* BOOL */
607 unsigned Indirect
: 1; /* BOOL */
608 unsigned Dimension
: 1; /* BOOL */
609 int Index
: 16; /* SINT */
610 unsigned Extended
: 1; /* BOOL */
614 * If tgsi_src_register::Extended is TRUE, tgsi_src_register_ext follows.
616 * Then, if tgsi_src_register::Indirect is TRUE, another tgsi_src_register
619 * Then, if tgsi_src_register::Dimension is TRUE, tgsi_dimension follows.
622 #define TGSI_SRC_REGISTER_EXT_TYPE_SWZ 0
623 #define TGSI_SRC_REGISTER_EXT_TYPE_MOD 1
625 struct tgsi_src_register_ext
627 unsigned Type
: 4; /* TGSI_SRC_REGISTER_EXT_TYPE_ */
628 unsigned Padding
: 27;
629 unsigned Extended
: 1; /* BOOL */
633 * If tgsi_src_register_ext::Type is TGSI_SRC_REGISTER_EXT_TYPE_SWZ,
634 * it should be cast to tgsi_src_register_ext_swz.
636 * If tgsi_src_register_ext::Type is TGSI_SRC_REGISTER_EXT_TYPE_MOD,
637 * it should be cast to tgsi_src_register_ext_mod.
639 * If tgsi_dst_register_ext::Extended is TRUE, another tgsi_dst_register_ext
643 #define TGSI_EXTSWIZZLE_X TGSI_SWIZZLE_X
644 #define TGSI_EXTSWIZZLE_Y TGSI_SWIZZLE_Y
645 #define TGSI_EXTSWIZZLE_Z TGSI_SWIZZLE_Z
646 #define TGSI_EXTSWIZZLE_W TGSI_SWIZZLE_W
647 #define TGSI_EXTSWIZZLE_ZERO 4
648 #define TGSI_EXTSWIZZLE_ONE 5
651 * ExtSwizzleX, ExtSwizzleY, ExtSwizzleZ and ExtSwizzleW swizzle the source
652 * register in an extended manner.
654 * NegateX, NegateY, NegateZ and NegateW negate individual components of the
657 * NOTE: To simplify matter, if this token is present, the corresponding Swizzle
658 * and Negate fields in tgsi_src_register should be set to X,Y,Z,W
659 * and FALSE, respectively.
662 struct tgsi_src_register_ext_swz
664 unsigned Type
: 4; /* TGSI_SRC_REGISTER_EXT_TYPE_SWZ */
665 unsigned ExtSwizzleX
: 4; /* TGSI_EXTSWIZZLE_ */
666 unsigned ExtSwizzleY
: 4; /* TGSI_EXTSWIZZLE_ */
667 unsigned ExtSwizzleZ
: 4; /* TGSI_EXTSWIZZLE_ */
668 unsigned ExtSwizzleW
: 4; /* TGSI_EXTSWIZZLE_ */
669 unsigned NegateX
: 1; /* BOOL */
670 unsigned NegateY
: 1; /* BOOL */
671 unsigned NegateZ
: 1; /* BOOL */
672 unsigned NegateW
: 1; /* BOOL */
673 unsigned Padding
: 7;
674 unsigned Extended
: 1; /* BOOL */
678 * Extra src register modifiers
680 * If Complement is TRUE, the source register is modified by subtracting it
683 * If Bias is TRUE, the source register is modified by subtracting 0.5 from it.
685 * If Scale2X is TRUE, the source register is modified by multiplying it by 2.0.
687 * If Absolute is TRUE, the source register is modified by removing the sign.
689 * If Negate is TRUE, the source register is modified by negating it.
692 struct tgsi_src_register_ext_mod
694 unsigned Type
: 4; /* TGSI_SRC_REGISTER_EXT_TYPE_MOD */
695 unsigned Complement
: 1; /* BOOL */
696 unsigned Bias
: 1; /* BOOL */
697 unsigned Scale2X
: 1; /* BOOL */
698 unsigned Absolute
: 1; /* BOOL */
699 unsigned Negate
: 1; /* BOOL */
700 unsigned Padding
: 22;
701 unsigned Extended
: 1; /* BOOL */
704 struct tgsi_dimension
706 unsigned Indirect
: 1; /* BOOL */
707 unsigned Dimension
: 1; /* BOOL */
708 unsigned Padding
: 13;
709 int Index
: 16; /* SINT */
710 unsigned Extended
: 1; /* BOOL */
713 struct tgsi_dst_register
715 unsigned File
: 4; /* TGSI_FILE_ */
716 unsigned WriteMask
: 4; /* TGSI_WRITEMASK_ */
717 unsigned Indirect
: 1; /* BOOL */
718 unsigned Dimension
: 1; /* BOOL */
719 int Index
: 16; /* SINT */
720 unsigned Padding
: 5;
721 unsigned Extended
: 1; /* BOOL */
725 * If tgsi_dst_register::Extended is TRUE, tgsi_dst_register_ext follows.
727 * Then, if tgsi_dst_register::Indirect is TRUE, tgsi_src_register follows.
730 #define TGSI_DST_REGISTER_EXT_TYPE_CONDCODE 0
731 #define TGSI_DST_REGISTER_EXT_TYPE_MODULATE 1
732 #define TGSI_DST_REGISTER_EXT_TYPE_PREDICATE 2
734 struct tgsi_dst_register_ext
736 unsigned Type
: 4; /* TGSI_DST_REGISTER_EXT_TYPE_ */
737 unsigned Padding
: 27;
738 unsigned Extended
: 1; /* BOOL */
742 * Extra destination register modifiers
744 * If tgsi_dst_register_ext::Type is TGSI_DST_REGISTER_EXT_TYPE_CONDCODE,
745 * it should be cast to tgsi_dst_register_ext_condcode.
747 * If tgsi_dst_register_ext::Type is TGSI_DST_REGISTER_EXT_TYPE_MODULATE,
748 * it should be cast to tgsi_dst_register_ext_modulate.
750 * If tgsi_dst_register_ext::Type is TGSI_DST_REGISTER_EXT_TYPE_PREDICATE,
751 * it should be cast to tgsi_dst_register_ext_predicate.
753 * If tgsi_dst_register_ext::Extended is TRUE, another tgsi_dst_register_ext
756 struct tgsi_dst_register_ext_concode
758 unsigned Type
: 4; /* TGSI_DST_REGISTER_EXT_TYPE_CONDCODE */
759 unsigned CondMask
: 4; /* TGSI_CC_ */
760 unsigned CondSwizzleX
: 2; /* TGSI_SWIZZLE_ */
761 unsigned CondSwizzleY
: 2; /* TGSI_SWIZZLE_ */
762 unsigned CondSwizzleZ
: 2; /* TGSI_SWIZZLE_ */
763 unsigned CondSwizzleW
: 2; /* TGSI_SWIZZLE_ */
764 unsigned CondSrcIndex
: 4; /* UINT */
765 unsigned Padding
: 11;
766 unsigned Extended
: 1; /* BOOL */
769 #define TGSI_MODULATE_1X 0
770 #define TGSI_MODULATE_2X 1
771 #define TGSI_MODULATE_4X 2
772 #define TGSI_MODULATE_8X 3
773 #define TGSI_MODULATE_HALF 4
774 #define TGSI_MODULATE_QUARTER 5
775 #define TGSI_MODULATE_EIGHTH 6
776 #define TGSI_MODULATE_COUNT 7
778 struct tgsi_dst_register_ext_modulate
780 unsigned Type
: 4; /* TGSI_DST_REGISTER_EXT_TYPE_MODULATE */
781 unsigned Modulate
: 4; /* TGSI_MODULATE_ */
782 unsigned Padding
: 23;
783 unsigned Extended
: 1; /* BOOL */
787 * Currently, the following constraints apply.
789 * - PredSwizzleXYZW is either set to identity or replicate.
790 * - PredSrcIndex is 0.
793 struct tgsi_dst_register_ext_predicate
795 unsigned Type
: 4; /* TGSI_DST_REGISTER_EXT_TYPE_PREDICATE */
796 unsigned PredSwizzleX
: 2; /* TGSI_SWIZZLE_ */
797 unsigned PredSwizzleY
: 2; /* TGSI_SWIZZLE_ */
798 unsigned PredSwizzleZ
: 2; /* TGSI_SWIZZLE_ */
799 unsigned PredSwizzleW
: 2; /* TGSI_SWIZZLE_ */
800 unsigned PredSrcIndex
: 4; /* UINT */
801 unsigned Negate
: 1; /* BOOL */
802 unsigned Padding
: 14;
803 unsigned Extended
: 1; /* BOOL */
811 #endif /* TGSI_TOKEN_H */