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_COUNT 7 /**< number of semantic values */
136 struct tgsi_declaration_semantic
138 unsigned SemanticName
: 8; /**< one of TGSI_SEMANTIC_x */
139 unsigned SemanticIndex
: 16; /**< UINT */
140 unsigned Padding
: 8;
143 #define TGSI_IMM_FLOAT32 0
145 struct tgsi_immediate
147 unsigned Type
: 4; /**< TGSI_TOKEN_TYPE_IMMEDIATE */
148 unsigned NrTokens
: 8; /**< UINT */
149 unsigned DataType
: 4; /**< one of TGSI_IMM_x */
150 unsigned Padding
: 15;
151 unsigned Extended
: 1; /**< BOOL */
154 struct tgsi_immediate_float32
160 * GL_NV_vertex_program
162 #define TGSI_OPCODE_ARL 0
163 #define TGSI_OPCODE_MOV 1
164 #define TGSI_OPCODE_LIT 2
165 #define TGSI_OPCODE_RCP 3
166 #define TGSI_OPCODE_RSQ 4
167 #define TGSI_OPCODE_EXP 5
168 #define TGSI_OPCODE_LOG 6
169 #define TGSI_OPCODE_MUL 7
170 #define TGSI_OPCODE_ADD 8
171 #define TGSI_OPCODE_DP3 9
172 #define TGSI_OPCODE_DP4 10
173 #define TGSI_OPCODE_DST 11
174 #define TGSI_OPCODE_MIN 12
175 #define TGSI_OPCODE_MAX 13
176 #define TGSI_OPCODE_SLT 14
177 #define TGSI_OPCODE_SGE 15
178 #define TGSI_OPCODE_MAD 16
181 * GL_ATI_fragment_shader
183 #define TGSI_OPCODE_SUB 17
184 #define TGSI_OPCODE_DOT3 TGSI_OPCODE_DP3
185 #define TGSI_OPCODE_DOT4 TGSI_OPCODE_DP4
186 #define TGSI_OPCODE_LERP 18
187 #define TGSI_OPCODE_CND 19
188 #define TGSI_OPCODE_CND0 20
189 #define TGSI_OPCODE_DOT2ADD 21
192 * GL_EXT_vertex_shader
194 #define TGSI_OPCODE_INDEX 22
195 #define TGSI_OPCODE_NEGATE 23
196 #define TGSI_OPCODE_MADD TGSI_OPCODE_MAD
197 #define TGSI_OPCODE_FRAC 24
198 #define TGSI_OPCODE_SETGE TGSI_OPCODE_SGE
199 #define TGSI_OPCODE_SETLT TGSI_OPCODE_SLT
200 #define TGSI_OPCODE_CLAMP 25
201 #define TGSI_OPCODE_FLOOR 26
202 #define TGSI_OPCODE_ROUND 27
203 #define TGSI_OPCODE_EXPBASE2 28
204 #define TGSI_OPCODE_LOGBASE2 29
205 #define TGSI_OPCODE_POWER 30
206 #define TGSI_OPCODE_RECIP TGSI_OPCODE_RCP
207 #define TGSI_OPCODE_RECIPSQRT TGSI_OPCODE_RSQ
208 #define TGSI_OPCODE_CROSSPRODUCT 31
209 #define TGSI_OPCODE_MULTIPLYMATRIX 32
212 * GL_NV_vertex_program1_1
214 #define TGSI_OPCODE_ABS 33
215 #define TGSI_OPCODE_RCC 34
216 #define TGSI_OPCODE_DPH 35
219 * GL_NV_fragment_program
221 #define TGSI_OPCODE_COS 36
222 #define TGSI_OPCODE_DDX 37
223 #define TGSI_OPCODE_DDY 38
224 #define TGSI_OPCODE_EX2 TGSI_OPCODE_EXPBASE2
225 #define TGSI_OPCODE_FLR TGSI_OPCODE_FLOOR
226 #define TGSI_OPCODE_FRC TGSI_OPCODE_FRAC
227 #define TGSI_OPCODE_KILP 39 /* predicated kill */
228 #define TGSI_OPCODE_LG2 TGSI_OPCODE_LOGBASE2
229 #define TGSI_OPCODE_LRP TGSI_OPCODE_LERP
230 #define TGSI_OPCODE_PK2H 40
231 #define TGSI_OPCODE_PK2US 41
232 #define TGSI_OPCODE_PK4B 42
233 #define TGSI_OPCODE_PK4UB 43
234 #define TGSI_OPCODE_POW TGSI_OPCODE_POWER
235 #define TGSI_OPCODE_RFL 44
236 #define TGSI_OPCODE_SEQ 45
237 #define TGSI_OPCODE_SFL 46
238 #define TGSI_OPCODE_SGT 47
239 #define TGSI_OPCODE_SIN 48
240 #define TGSI_OPCODE_SLE 49
241 #define TGSI_OPCODE_SNE 50
242 #define TGSI_OPCODE_STR 51
243 #define TGSI_OPCODE_TEX 52
244 #define TGSI_OPCODE_TXD 53
245 #define TGSI_OPCODE_TXP 54
246 #define TGSI_OPCODE_UP2H 55
247 #define TGSI_OPCODE_UP2US 56
248 #define TGSI_OPCODE_UP4B 57
249 #define TGSI_OPCODE_UP4UB 58
250 #define TGSI_OPCODE_X2D 59
253 * GL_NV_vertex_program2
255 #define TGSI_OPCODE_ARA 60
256 #define TGSI_OPCODE_ARR 61
257 #define TGSI_OPCODE_BRA 62
258 #define TGSI_OPCODE_CAL 63
259 #define TGSI_OPCODE_RET 64
260 #define TGSI_OPCODE_SSG 65
263 * GL_ARB_vertex_program
265 #define TGSI_OPCODE_SWZ 118
266 #define TGSI_OPCODE_XPD TGSI_OPCODE_CROSSPRODUCT
269 * GL_ARB_fragment_program
271 #define TGSI_OPCODE_CMP 66
272 #define TGSI_OPCODE_KIL 116 /* conditional kill */
273 #define TGSI_OPCODE_SCS 67
274 #define TGSI_OPCODE_TXB 68
277 * GL_NV_fragment_program_option
282 * GL_NV_fragment_program2
284 #define TGSI_OPCODE_NRM 69
285 #define TGSI_OPCODE_DIV 70
286 #define TGSI_OPCODE_DP2 71
287 #define TGSI_OPCODE_DP2A TGSI_OPCODE_DOT2ADD
288 #define TGSI_OPCODE_TXL 72
289 #define TGSI_OPCODE_BRK 73
290 #define TGSI_OPCODE_IF 74
291 #define TGSI_OPCODE_LOOP 75
292 #define TGSI_OPCODE_REP 76
293 #define TGSI_OPCODE_ELSE 77
294 #define TGSI_OPCODE_ENDIF 78
295 #define TGSI_OPCODE_ENDLOOP 79
296 #define TGSI_OPCODE_ENDREP 80
299 * GL_NV_vertex_program2_option
303 * GL_NV_vertex_program3
305 #define TGSI_OPCODE_PUSHA 81
306 #define TGSI_OPCODE_POPA 82
311 #define TGSI_OPCODE_CEIL 83
312 #define TGSI_OPCODE_I2F 84
313 #define TGSI_OPCODE_NOT 85
314 #define TGSI_OPCODE_TRUNC 86
315 #define TGSI_OPCODE_SHL 87
316 #define TGSI_OPCODE_SHR 88
317 #define TGSI_OPCODE_AND 89
318 #define TGSI_OPCODE_OR 90
319 #define TGSI_OPCODE_MOD 91
320 #define TGSI_OPCODE_XOR 92
321 #define TGSI_OPCODE_SAD 93
322 #define TGSI_OPCODE_TXF 94
323 #define TGSI_OPCODE_TXQ 95
324 #define TGSI_OPCODE_CONT 96
327 * GL_NV_vertex_program4
329 /* Same as GL_NV_gpu_program4 */
332 * GL_NV_fragment_program4
334 /* Same as GL_NV_gpu_program4 */
337 * GL_NV_geometry_program4
339 /* Same as GL_NV_gpu_program4 */
340 #define TGSI_OPCODE_EMIT 97
341 #define TGSI_OPCODE_ENDPRIM 98
346 #define TGSI_OPCODE_BGNLOOP2 99
347 #define TGSI_OPCODE_BGNSUB 100
348 #define TGSI_OPCODE_ENDLOOP2 101
349 #define TGSI_OPCODE_ENDSUB 102
350 #define TGSI_OPCODE_INT TGSI_OPCODE_TRUNC
351 #define TGSI_OPCODE_NOISE1 103
352 #define TGSI_OPCODE_NOISE2 104
353 #define TGSI_OPCODE_NOISE3 105
354 #define TGSI_OPCODE_NOISE4 106
355 #define TGSI_OPCODE_NOP 107
360 #define TGSI_OPCODE_TEXKILL TGSI_OPCODE_KIL
365 /* CMP - use TGSI_OPCODE_CND0 */
370 /* CMP - use TGSI_OPCODE_CND0 */
375 #define TGSI_OPCODE_TEXLD TGSI_OPCODE_TEX
380 #define TGSI_OPCODE_M4X4 TGSI_OPCODE_MULTIPLYMATRIX
381 #define TGSI_OPCODE_M4X3 108
382 #define TGSI_OPCODE_M3X4 109
383 #define TGSI_OPCODE_M3X3 110
384 #define TGSI_OPCODE_M3X2 111
385 #define TGSI_OPCODE_CRS TGSI_OPCODE_XPD
386 #define TGSI_OPCODE_NRM4 112
387 #define TGSI_OPCODE_SINCOS TGSI_OPCODE_SCS
388 #define TGSI_OPCODE_TEXLDB TGSI_OPCODE_TXB
389 #define TGSI_OPCODE_DP2ADD TGSI_OPCODE_DP2A
394 #define TGSI_OPCODE_CALL TGSI_OPCODE_CAL
395 #define TGSI_OPCODE_CALLNZ 113
396 #define TGSI_OPCODE_IFC 114
397 #define TGSI_OPCODE_BREAK TGSI_OPCODE_BRK
398 #define TGSI_OPCODE_BREAKC 115
399 #define TGSI_OPCODE_DSX TGSI_OPCODE_DDX
400 #define TGSI_OPCODE_DSY TGSI_OPCODE_DDY
401 #define TGSI_OPCODE_TEXLDD TGSI_OPCODE_TXD
406 #define TGSI_OPCODE_EXPP TGSI_OPCODE_EXP
407 #define TGSI_OPCODE_LOGP TGSI_OPCODE_LG2
412 #define TGSI_OPCODE_SGN TGSI_OPCODE_SSG
413 #define TGSI_OPCODE_MOVA TGSI_OPCODE_ARR
414 /* EXPP - use TGSI_OPCODE_EX2 */
420 #define TGSI_OPCODE_END 117 /* aka HALT */
422 #define TGSI_OPCODE_LAST 119
424 #define TGSI_SAT_NONE 0 /* do not saturate */
425 #define TGSI_SAT_ZERO_ONE 1 /* clamp to [0,1] */
426 #define TGSI_SAT_MINUS_PLUS_ONE 2 /* clamp to [-1,1] */
429 * Opcode is the operation code to execute. A given operation defines the
430 * semantics how the source registers (if any) are interpreted and what is
431 * written to the destination registers (if any) as a result of execution.
433 * NumDstRegs and NumSrcRegs is the number of destination and source registers,
434 * respectively. For a given operation code, those numbers are fixed and are
435 * present here only for convenience.
437 * If Extended is TRUE, it is now executed.
439 * Saturate controls how are final results in destination registers modified.
442 struct tgsi_instruction
444 unsigned Type
: 4; /* TGSI_TOKEN_TYPE_INSTRUCTION */
445 unsigned NrTokens
: 8; /* UINT */
446 unsigned Opcode
: 8; /* TGSI_OPCODE_ */
447 unsigned Saturate
: 2; /* TGSI_SAT_ */
448 unsigned NumDstRegs
: 2; /* UINT */
449 unsigned NumSrcRegs
: 4; /* UINT */
450 unsigned Padding
: 3;
451 unsigned Extended
: 1; /* BOOL */
455 * If tgsi_instruction::Extended is TRUE, tgsi_instruction_ext follows.
457 * Then, tgsi_instruction::NumDstRegs of tgsi_dst_register follow.
459 * Then, tgsi_instruction::NumSrcRegs of tgsi_src_register follow.
461 * tgsi_instruction::NrTokens contains the total number of words that make the
462 * instruction, including the instruction word.
465 #define TGSI_INSTRUCTION_EXT_TYPE_NV 0
466 #define TGSI_INSTRUCTION_EXT_TYPE_LABEL 1
467 #define TGSI_INSTRUCTION_EXT_TYPE_TEXTURE 2
468 #define TGSI_INSTRUCTION_EXT_TYPE_PREDICATE 3
470 struct tgsi_instruction_ext
472 unsigned Type
: 4; /* TGSI_INSTRUCTION_EXT_TYPE_ */
473 unsigned Padding
: 27;
474 unsigned Extended
: 1; /* BOOL */
478 * If tgsi_instruction_ext::Type is TGSI_INSTRUCTION_EXT_TYPE_NV, it should
479 * be cast to tgsi_instruction_ext_nv.
481 * If tgsi_instruction_ext::Type is TGSI_INSTRUCTION_EXT_TYPE_LABEL, it
482 * should be cast to tgsi_instruction_ext_label.
484 * If tgsi_instruction_ext::Type is TGSI_INSTRUCTION_EXT_TYPE_TEXTURE, it
485 * should be cast to tgsi_instruction_ext_texture.
487 * If tgsi_instruction_ext::Type is TGSI_INSTRUCTION_EXT_TYPE_PREDICATE, it
488 * should be cast to tgsi_instruction_ext_predicate.
490 * If tgsi_instruction_ext::Extended is TRUE, another tgsi_instruction_ext
494 #define TGSI_PRECISION_DEFAULT 0
495 #define TGSI_PRECISION_FLOAT32 1
496 #define TGSI_PRECISION_FLOAT16 2
497 #define TGSI_PRECISION_FIXED12 3
508 #define TGSI_SWIZZLE_X 0
509 #define TGSI_SWIZZLE_Y 1
510 #define TGSI_SWIZZLE_Z 2
511 #define TGSI_SWIZZLE_W 3
514 * Precision controls the precision at which the operation should be executed.
516 * CondDstUpdate enables condition code register writes. When this field is
517 * TRUE, CondDstIndex specifies the index of the condition code register to
520 * CondFlowEnable enables conditional execution of the operation. When this
521 * field is TRUE, CondFlowIndex specifies the index of the condition code
522 * register to test against CondMask with component swizzle controled by
523 * CondSwizzleX, CondSwizzleY, CondSwizzleZ and CondSwizzleW. If the test fails,
524 * the operation is not executed.
527 struct tgsi_instruction_ext_nv
529 unsigned Type
: 4; /* TGSI_INSTRUCTION_EXT_TYPE_NV */
530 unsigned Precision
: 4; /* TGSI_PRECISION_ */
531 unsigned CondDstIndex
: 4; /* UINT */
532 unsigned CondFlowIndex
: 4; /* UINT */
533 unsigned CondMask
: 4; /* TGSI_CC_ */
534 unsigned CondSwizzleX
: 2; /* TGSI_SWIZZLE_ */
535 unsigned CondSwizzleY
: 2; /* TGSI_SWIZZLE_ */
536 unsigned CondSwizzleZ
: 2; /* TGSI_SWIZZLE_ */
537 unsigned CondSwizzleW
: 2; /* TGSI_SWIZZLE_ */
538 unsigned CondDstUpdate
: 1; /* BOOL */
539 unsigned CondFlowEnable
: 1; /* BOOL */
540 unsigned Padding
: 1;
541 unsigned Extended
: 1; /* BOOL */
544 struct tgsi_instruction_ext_label
546 unsigned Type
: 4; /* TGSI_INSTRUCTION_EXT_TYPE_LABEL */
547 unsigned Label
: 24; /* UINT */
548 unsigned Padding
: 3;
549 unsigned Extended
: 1; /* BOOL */
552 #define TGSI_TEXTURE_UNKNOWN 0
553 #define TGSI_TEXTURE_1D 1
554 #define TGSI_TEXTURE_2D 2
555 #define TGSI_TEXTURE_3D 3
556 #define TGSI_TEXTURE_CUBE 4
557 #define TGSI_TEXTURE_RECT 5
558 #define TGSI_TEXTURE_SHADOW1D 6
559 #define TGSI_TEXTURE_SHADOW2D 7
560 #define TGSI_TEXTURE_SHADOWRECT 8
561 #define TGSI_TEXTURE_COUNT 9
563 struct tgsi_instruction_ext_texture
565 unsigned Type
: 4; /* TGSI_INSTRUCTION_EXT_TYPE_TEXTURE */
566 unsigned Texture
: 8; /* TGSI_TEXTURE_ */
567 unsigned Padding
: 19;
568 unsigned Extended
: 1; /* BOOL */
571 struct tgsi_instruction_ext_predicate
573 unsigned Type
: 4; /* TGSI_INSTRUCTION_EXT_TYPE_PREDICATE */
574 unsigned PredDstIndex
: 4; /* UINT */
575 unsigned PredWriteMask
: 4; /* TGSI_WRITEMASK_ */
576 unsigned Padding
: 19;
577 unsigned Extended
: 1; /* BOOL */
581 * File specifies the register array to access.
583 * Index specifies the element number of a register in the register file.
585 * If Indirect is TRUE, Index should be offset by the X component of a source
586 * register that follows. The register can be now fetched into local storage
587 * for further processing.
589 * If Negate is TRUE, all components of the fetched register are negated.
591 * The fetched register components are swizzled according to SwizzleX, SwizzleY,
592 * SwizzleZ and SwizzleW.
594 * If Extended is TRUE, any further modifications to the source register are
595 * made to this temporary storage.
598 struct tgsi_src_register
600 unsigned File
: 4; /* TGSI_FILE_ */
601 unsigned SwizzleX
: 2; /* TGSI_SWIZZLE_ */
602 unsigned SwizzleY
: 2; /* TGSI_SWIZZLE_ */
603 unsigned SwizzleZ
: 2; /* TGSI_SWIZZLE_ */
604 unsigned SwizzleW
: 2; /* TGSI_SWIZZLE_ */
605 unsigned Negate
: 1; /* BOOL */
606 unsigned Indirect
: 1; /* BOOL */
607 unsigned Dimension
: 1; /* BOOL */
608 int Index
: 16; /* SINT */
609 unsigned Extended
: 1; /* BOOL */
613 * If tgsi_src_register::Extended is TRUE, tgsi_src_register_ext follows.
615 * Then, if tgsi_src_register::Indirect is TRUE, another tgsi_src_register
618 * Then, if tgsi_src_register::Dimension is TRUE, tgsi_dimension follows.
621 #define TGSI_SRC_REGISTER_EXT_TYPE_SWZ 0
622 #define TGSI_SRC_REGISTER_EXT_TYPE_MOD 1
624 struct tgsi_src_register_ext
626 unsigned Type
: 4; /* TGSI_SRC_REGISTER_EXT_TYPE_ */
627 unsigned Padding
: 27;
628 unsigned Extended
: 1; /* BOOL */
632 * If tgsi_src_register_ext::Type is TGSI_SRC_REGISTER_EXT_TYPE_SWZ,
633 * it should be cast to tgsi_src_register_ext_swz.
635 * If tgsi_src_register_ext::Type is TGSI_SRC_REGISTER_EXT_TYPE_MOD,
636 * it should be cast to tgsi_src_register_ext_mod.
638 * If tgsi_dst_register_ext::Extended is TRUE, another tgsi_dst_register_ext
642 #define TGSI_EXTSWIZZLE_X TGSI_SWIZZLE_X
643 #define TGSI_EXTSWIZZLE_Y TGSI_SWIZZLE_Y
644 #define TGSI_EXTSWIZZLE_Z TGSI_SWIZZLE_Z
645 #define TGSI_EXTSWIZZLE_W TGSI_SWIZZLE_W
646 #define TGSI_EXTSWIZZLE_ZERO 4
647 #define TGSI_EXTSWIZZLE_ONE 5
650 * ExtSwizzleX, ExtSwizzleY, ExtSwizzleZ and ExtSwizzleW swizzle the source
651 * register in an extended manner.
653 * NegateX, NegateY, NegateZ and NegateW negate individual components of the
656 * NOTE: To simplify matter, if this token is present, the corresponding Swizzle
657 * and Negate fields in tgsi_src_register should be set to X,Y,Z,W
658 * and FALSE, respectively.
661 struct tgsi_src_register_ext_swz
663 unsigned Type
: 4; /* TGSI_SRC_REGISTER_EXT_TYPE_SWZ */
664 unsigned ExtSwizzleX
: 4; /* TGSI_EXTSWIZZLE_ */
665 unsigned ExtSwizzleY
: 4; /* TGSI_EXTSWIZZLE_ */
666 unsigned ExtSwizzleZ
: 4; /* TGSI_EXTSWIZZLE_ */
667 unsigned ExtSwizzleW
: 4; /* TGSI_EXTSWIZZLE_ */
668 unsigned NegateX
: 1; /* BOOL */
669 unsigned NegateY
: 1; /* BOOL */
670 unsigned NegateZ
: 1; /* BOOL */
671 unsigned NegateW
: 1; /* BOOL */
672 unsigned Padding
: 7;
673 unsigned Extended
: 1; /* BOOL */
677 * Extra src register modifiers
679 * If Complement is TRUE, the source register is modified by subtracting it
682 * If Bias is TRUE, the source register is modified by subtracting 0.5 from it.
684 * If Scale2X is TRUE, the source register is modified by multiplying it by 2.0.
686 * If Absolute is TRUE, the source register is modified by removing the sign.
688 * If Negate is TRUE, the source register is modified by negating it.
691 struct tgsi_src_register_ext_mod
693 unsigned Type
: 4; /* TGSI_SRC_REGISTER_EXT_TYPE_MOD */
694 unsigned Complement
: 1; /* BOOL */
695 unsigned Bias
: 1; /* BOOL */
696 unsigned Scale2X
: 1; /* BOOL */
697 unsigned Absolute
: 1; /* BOOL */
698 unsigned Negate
: 1; /* BOOL */
699 unsigned Padding
: 22;
700 unsigned Extended
: 1; /* BOOL */
703 struct tgsi_dimension
705 unsigned Indirect
: 1; /* BOOL */
706 unsigned Dimension
: 1; /* BOOL */
707 unsigned Padding
: 13;
708 int Index
: 16; /* SINT */
709 unsigned Extended
: 1; /* BOOL */
712 struct tgsi_dst_register
714 unsigned File
: 4; /* TGSI_FILE_ */
715 unsigned WriteMask
: 4; /* TGSI_WRITEMASK_ */
716 unsigned Indirect
: 1; /* BOOL */
717 unsigned Dimension
: 1; /* BOOL */
718 int Index
: 16; /* SINT */
719 unsigned Padding
: 5;
720 unsigned Extended
: 1; /* BOOL */
724 * If tgsi_dst_register::Extended is TRUE, tgsi_dst_register_ext follows.
726 * Then, if tgsi_dst_register::Indirect is TRUE, tgsi_src_register follows.
729 #define TGSI_DST_REGISTER_EXT_TYPE_CONDCODE 0
730 #define TGSI_DST_REGISTER_EXT_TYPE_MODULATE 1
731 #define TGSI_DST_REGISTER_EXT_TYPE_PREDICATE 2
733 struct tgsi_dst_register_ext
735 unsigned Type
: 4; /* TGSI_DST_REGISTER_EXT_TYPE_ */
736 unsigned Padding
: 27;
737 unsigned Extended
: 1; /* BOOL */
741 * Extra destination register modifiers
743 * If tgsi_dst_register_ext::Type is TGSI_DST_REGISTER_EXT_TYPE_CONDCODE,
744 * it should be cast to tgsi_dst_register_ext_condcode.
746 * If tgsi_dst_register_ext::Type is TGSI_DST_REGISTER_EXT_TYPE_MODULATE,
747 * it should be cast to tgsi_dst_register_ext_modulate.
749 * If tgsi_dst_register_ext::Type is TGSI_DST_REGISTER_EXT_TYPE_PREDICATE,
750 * it should be cast to tgsi_dst_register_ext_predicate.
752 * If tgsi_dst_register_ext::Extended is TRUE, another tgsi_dst_register_ext
755 struct tgsi_dst_register_ext_concode
757 unsigned Type
: 4; /* TGSI_DST_REGISTER_EXT_TYPE_CONDCODE */
758 unsigned CondMask
: 4; /* TGSI_CC_ */
759 unsigned CondSwizzleX
: 2; /* TGSI_SWIZZLE_ */
760 unsigned CondSwizzleY
: 2; /* TGSI_SWIZZLE_ */
761 unsigned CondSwizzleZ
: 2; /* TGSI_SWIZZLE_ */
762 unsigned CondSwizzleW
: 2; /* TGSI_SWIZZLE_ */
763 unsigned CondSrcIndex
: 4; /* UINT */
764 unsigned Padding
: 11;
765 unsigned Extended
: 1; /* BOOL */
768 #define TGSI_MODULATE_1X 0
769 #define TGSI_MODULATE_2X 1
770 #define TGSI_MODULATE_4X 2
771 #define TGSI_MODULATE_8X 3
772 #define TGSI_MODULATE_HALF 4
773 #define TGSI_MODULATE_QUARTER 5
774 #define TGSI_MODULATE_EIGHTH 6
775 #define TGSI_MODULATE_COUNT 7
777 struct tgsi_dst_register_ext_modulate
779 unsigned Type
: 4; /* TGSI_DST_REGISTER_EXT_TYPE_MODULATE */
780 unsigned Modulate
: 4; /* TGSI_MODULATE_ */
781 unsigned Padding
: 23;
782 unsigned Extended
: 1; /* BOOL */
786 * Currently, the following constraints apply.
788 * - PredSwizzleXYZW is either set to identity or replicate.
789 * - PredSrcIndex is 0.
792 struct tgsi_dst_register_ext_predicate
794 unsigned Type
: 4; /* TGSI_DST_REGISTER_EXT_TYPE_PREDICATE */
795 unsigned PredSwizzleX
: 2; /* TGSI_SWIZZLE_ */
796 unsigned PredSwizzleY
: 2; /* TGSI_SWIZZLE_ */
797 unsigned PredSwizzleZ
: 2; /* TGSI_SWIZZLE_ */
798 unsigned PredSwizzleW
: 2; /* TGSI_SWIZZLE_ */
799 unsigned PredSrcIndex
: 4; /* UINT */
800 unsigned Negate
: 1; /* BOOL */
801 unsigned Padding
: 14;
802 unsigned Extended
: 1; /* BOOL */
810 #endif /* TGSI_TOKEN_H */