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
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
|
#include "tgsi_platform.h"
#include "tgsi_mesa.h"
#define TGSI_DEBUG 1
/*
* Map mesa register file to SBIR register file.
*/
static GLuint
map_register_file(
enum register_file file )
{
switch( file ) {
case PROGRAM_UNDEFINED:
return TGSI_FILE_NULL;
case PROGRAM_TEMPORARY:
return TGSI_FILE_TEMPORARY;
//case PROGRAM_LOCAL_PARAM:
//case PROGRAM_ENV_PARAM:
case PROGRAM_STATE_VAR:
case PROGRAM_NAMED_PARAM:
case PROGRAM_CONSTANT:
case PROGRAM_UNIFORM:
return TGSI_FILE_CONSTANT;
case PROGRAM_INPUT:
return TGSI_FILE_INPUT;
case PROGRAM_OUTPUT:
return TGSI_FILE_OUTPUT;
case PROGRAM_ADDRESS:
return TGSI_FILE_ADDRESS;
default:
assert( 0 );
return TGSI_FILE_NULL;
}
}
/**
* Map mesa register file index to SBIR index.
* Take special care when processing input and output indices.
* \param processor either TGSI_PROCESSOR_FRAGMENT or TGSI_PROCESSOR_VERTEX
* \param file one of TGSI_FILE_x
* \param index the mesa register file index
* \param usage_bitmask ???
*/
static GLuint
map_register_file_index(
GLuint processor,
GLuint file,
GLuint index,
GLbitfield usage_bitmask )
{
GLuint mapped_index;
GLuint i;
switch( file ) {
case TGSI_FILE_INPUT:
/*
* The fragment/vertex program input indexes (FRAG/VERT_ATTRIB_x) get
* mapped to a packed sequence of integers.
* If a program uses one input attribute, the mapped index will be 1.
* If a program uses two input attribs, the mapped indexes will be 1,2.
* If a program uses 3 input attribs, the mapped indexes will be 1,2,3.
* etc.
*/
assert( index < 32 );
assert( usage_bitmask & (1 << index) );
mapped_index = 0;
for( i = 0; i < index; i++ ) {
if( usage_bitmask & (1 << i) ) {
mapped_index++;
}
}
printf("Map input %d to %d\n", index, mapped_index);
break;
case TGSI_FILE_OUTPUT:
assert( usage_bitmask == 0x0 );
if( processor == TGSI_PROCESSOR_FRAGMENT ) {
/* depth result -> index 0
* color results -> index 1, 2, ...
*/
if( index == FRAG_RESULT_DEPR ) {
mapped_index = 0;
}
else {
assert( index == FRAG_RESULT_COLR );
mapped_index = index + 1;
}
}
else {
/* mapped_index = VERT_RESULT_x */
mapped_index = index;
}
break;
default:
mapped_index = index;
}
return mapped_index;
}
/*
* Map mesa texture target to SBIR texture target.
*/
static GLuint
map_texture_target(
GLuint textarget )
{
switch( textarget ) {
case TEXTURE_1D_INDEX:
return TGSI_TEXTURE_1D;
case TEXTURE_2D_INDEX:
return TGSI_TEXTURE_2D;
case TEXTURE_3D_INDEX:
return TGSI_TEXTURE_3D;
case TEXTURE_CUBE_INDEX:
return TGSI_TEXTURE_CUBE;
case TEXTURE_RECT_INDEX:
return TGSI_TEXTURE_RECT;
default:
assert( 0 );
}
return TGSI_TEXTURE_1D;
}
static GLuint
convert_sat(
GLuint sat )
{
switch( sat ) {
case SATURATE_OFF:
return TGSI_SAT_NONE;
case SATURATE_ZERO_ONE:
return TGSI_SAT_ZERO_ONE;
case SATURATE_PLUS_MINUS_ONE:
return TGSI_SAT_MINUS_PLUS_ONE;
default:
assert( 0 );
return TGSI_SAT_NONE;
}
}
static GLuint
convert_writemask(
GLuint writemask )
{
assert( WRITEMASK_X == TGSI_WRITEMASK_X );
assert( WRITEMASK_Y == TGSI_WRITEMASK_Y );
assert( WRITEMASK_Z == TGSI_WRITEMASK_Z );
assert( WRITEMASK_W == TGSI_WRITEMASK_W );
assert( (writemask & ~TGSI_WRITEMASK_XYZW) == 0 );
return writemask;
}
static GLboolean
compile_instruction(
const struct prog_instruction *inst,
struct tgsi_full_instruction *fullinst,
GLuint inputs_read,
GLuint preamble_size,
GLuint processor )
{
GLuint i;
struct tgsi_full_dst_register *fulldst;
struct tgsi_full_src_register *fullsrc;
*fullinst = tgsi_default_full_instruction();
fullinst->Instruction.Saturate = convert_sat( inst->SaturateMode );
fullinst->Instruction.NumDstRegs = _mesa_num_inst_dst_regs( inst->Opcode );
fullinst->Instruction.NumSrcRegs = _mesa_num_inst_src_regs( inst->Opcode );
fulldst = &fullinst->FullDstRegisters[0];
fulldst->DstRegister.File = map_register_file( inst->DstReg.File );
fulldst->DstRegister.Index = map_register_file_index(
processor,
fulldst->DstRegister.File,
inst->DstReg.Index,
0x0 );
fulldst->DstRegister.WriteMask = convert_writemask( inst->DstReg.WriteMask );
for( i = 0; i < fullinst->Instruction.NumSrcRegs; i++ ) {
GLuint j;
fullsrc = &fullinst->FullSrcRegisters[i];
fullsrc->SrcRegister.File = map_register_file( inst->SrcReg[i].File );
fullsrc->SrcRegister.Index = map_register_file_index(
processor,
fullsrc->SrcRegister.File,
inst->SrcReg[i].Index,
inputs_read );
for( j = 0; j < 4; j++ ) {
GLuint swz;
swz = GET_SWZ( inst->SrcReg[i].Swizzle, j );
if( swz > SWIZZLE_W ) {
tgsi_util_set_src_register_extswizzle(
&fullsrc->SrcRegisterExtSwz,
swz,
j );
}
else {
tgsi_util_set_src_register_swizzle(
&fullsrc->SrcRegister,
swz,
j );
}
}
if( inst->SrcReg[i].NegateBase == NEGATE_XYZW ) {
fullsrc->SrcRegister.Negate = 1;
}
else if( inst->SrcReg[i].NegateBase != NEGATE_NONE ) {
if( inst->SrcReg[i].NegateBase & NEGATE_X ) {
fullsrc->SrcRegisterExtSwz.NegateX = 1;
}
if( inst->SrcReg[i].NegateBase & NEGATE_Y ) {
fullsrc->SrcRegisterExtSwz.NegateY = 1;
}
if( inst->SrcReg[i].NegateBase & NEGATE_Z ) {
fullsrc->SrcRegisterExtSwz.NegateZ = 1;
}
if( inst->SrcReg[i].NegateBase & NEGATE_W ) {
fullsrc->SrcRegisterExtSwz.NegateW = 1;
}
}
if( inst->SrcReg[i].Abs ) {
fullsrc->SrcRegisterExtMod.Absolute = 1;
}
if( inst->SrcReg[i].NegateAbs ) {
fullsrc->SrcRegisterExtMod.Negate = 1;
}
if( inst->SrcReg[i].RelAddr ) {
fullsrc->SrcRegister.Indirect = 1;
fullsrc->SrcRegisterInd.File = TGSI_FILE_ADDRESS;
fullsrc->SrcRegisterInd.Index = 0;
}
}
switch( inst->Opcode ) {
case OPCODE_ARL:
fullinst->Instruction.Opcode = TGSI_OPCODE_ARL;
break;
case OPCODE_ABS:
fullinst->Instruction.Opcode = TGSI_OPCODE_ABS;
break;
case OPCODE_ADD:
fullinst->Instruction.Opcode = TGSI_OPCODE_ADD;
break;
case OPCODE_BGNLOOP:
fullinst->Instruction.Opcode = TGSI_OPCODE_BGNLOOP2;
break;
case OPCODE_BGNSUB:
fullinst->Instruction.Opcode = TGSI_OPCODE_BGNSUB;
break;
case OPCODE_BRA:
fullinst->Instruction.Opcode = TGSI_OPCODE_BRA;
break;
case OPCODE_BRK:
fullinst->Instruction.Opcode = TGSI_OPCODE_BRK;
break;
case OPCODE_CMP:
fullinst->Instruction.Opcode = TGSI_OPCODE_CMP;
break;
case OPCODE_CONT:
fullinst->Instruction.Opcode = TGSI_OPCODE_CONT;
break;
case OPCODE_COS:
fullinst->Instruction.Opcode = TGSI_OPCODE_COS;
break;
case OPCODE_DDX:
fullinst->Instruction.Opcode = TGSI_OPCODE_DDX;
break;
case OPCODE_DDY:
fullinst->Instruction.Opcode = TGSI_OPCODE_DDY;
break;
case OPCODE_DP3:
fullinst->Instruction.Opcode = TGSI_OPCODE_DP3;
break;
case OPCODE_DP4:
fullinst->Instruction.Opcode = TGSI_OPCODE_DP4;
break;
case OPCODE_DPH:
fullinst->Instruction.Opcode = TGSI_OPCODE_DPH;
break;
case OPCODE_DST:
fullinst->Instruction.Opcode = TGSI_OPCODE_DST;
break;
case OPCODE_ELSE:
fullinst->Instruction.Opcode = TGSI_OPCODE_ELSE;
fullinst->InstructionExtLabel.Label = inst->BranchTarget + preamble_size;
break;
case OPCODE_ENDIF:
fullinst->Instruction.Opcode = TGSI_OPCODE_ENDIF;
break;
case OPCODE_ENDLOOP:
fullinst->Instruction.Opcode = TGSI_OPCODE_ENDLOOP2;
break;
case OPCODE_ENDSUB:
fullinst->Instruction.Opcode = TGSI_OPCODE_ENDSUB;
break;
case OPCODE_EX2:
fullinst->Instruction.Opcode = TGSI_OPCODE_EX2;
break;
case OPCODE_EXP:
fullinst->Instruction.Opcode = TGSI_OPCODE_EXP;
break;
case OPCODE_FLR:
fullinst->Instruction.Opcode = TGSI_OPCODE_FLR;
break;
case OPCODE_FRC:
fullinst->Instruction.Opcode = TGSI_OPCODE_FRC;
break;
case OPCODE_IF:
fullinst->Instruction.Opcode = TGSI_OPCODE_IF;
fullinst->InstructionExtLabel.Label = inst->BranchTarget + preamble_size;
break;
case OPCODE_INT:
fullinst->Instruction.Opcode = TGSI_OPCODE_INT;
break;
case OPCODE_KIL:
fullinst->Instruction.Opcode = TGSI_OPCODE_KIL;
break;
case OPCODE_LG2:
fullinst->Instruction.Opcode = TGSI_OPCODE_LG2;
break;
case OPCODE_LOG:
fullinst->Instruction.Opcode = TGSI_OPCODE_LOG;
break;
case OPCODE_LIT:
fullinst->Instruction.Opcode = TGSI_OPCODE_LIT;
break;
case OPCODE_LRP:
fullinst->Instruction.Opcode = TGSI_OPCODE_LRP;
break;
case OPCODE_MAD:
fullinst->Instruction.Opcode = TGSI_OPCODE_MAD;
break;
case OPCODE_MAX:
fullinst->Instruction.Opcode = TGSI_OPCODE_MAX;
break;
case OPCODE_MIN:
fullinst->Instruction.Opcode = TGSI_OPCODE_MIN;
break;
case OPCODE_MOV:
fullinst->Instruction.Opcode = TGSI_OPCODE_MOV;
break;
case OPCODE_MUL:
fullinst->Instruction.Opcode = TGSI_OPCODE_MUL;
break;
case OPCODE_NOISE1:
fullinst->Instruction.Opcode = TGSI_OPCODE_NOISE1;
break;
case OPCODE_NOISE2:
fullinst->Instruction.Opcode = TGSI_OPCODE_NOISE2;
break;
case OPCODE_NOISE3:
fullinst->Instruction.Opcode = TGSI_OPCODE_NOISE3;
break;
case OPCODE_NOISE4:
fullinst->Instruction.Opcode = TGSI_OPCODE_NOISE4;
break;
case OPCODE_NOP:
fullinst->Instruction.Opcode = TGSI_OPCODE_NOP;
break;
case OPCODE_POW:
fullinst->Instruction.Opcode = TGSI_OPCODE_POW;
break;
case OPCODE_RCP:
fullinst->Instruction.Opcode = TGSI_OPCODE_RCP;
break;
case OPCODE_RSQ:
fullinst->Instruction.Opcode = TGSI_OPCODE_RSQ;
tgsi_util_set_full_src_register_sign_mode(
&fullinst->FullSrcRegisters[0],
TGSI_UTIL_SIGN_CLEAR );
break;
case OPCODE_SCS:
fullinst->Instruction.Opcode = TGSI_OPCODE_SCS;
fulldst->DstRegister.WriteMask &= TGSI_WRITEMASK_XY;
break;
case OPCODE_SEQ:
fullinst->Instruction.Opcode = TGSI_OPCODE_SEQ;
break;
case OPCODE_SGE:
fullinst->Instruction.Opcode = TGSI_OPCODE_SGE;
break;
case OPCODE_SGT:
fullinst->Instruction.Opcode = TGSI_OPCODE_SGT;
break;
case OPCODE_SIN:
fullinst->Instruction.Opcode = TGSI_OPCODE_SIN;
break;
case OPCODE_SLE:
fullinst->Instruction.Opcode = TGSI_OPCODE_SLE;
break;
case OPCODE_SLT:
fullinst->Instruction.Opcode = TGSI_OPCODE_SLT;
break;
case OPCODE_SNE:
fullinst->Instruction.Opcode = TGSI_OPCODE_SNE;
break;
case OPCODE_SUB:
fullinst->Instruction.Opcode = TGSI_OPCODE_SUB;
break;
case OPCODE_SWZ:
fullinst->Instruction.Opcode = TGSI_OPCODE_SWZ;
break;
case OPCODE_TEX:
fullinst->Instruction.Opcode = TGSI_OPCODE_TEX;
fullinst->Instruction.NumSrcRegs = 2;
fullinst->InstructionExtTexture.Texture = map_texture_target( inst->TexSrcTarget );
fullinst->FullSrcRegisters[1].SrcRegister.File = TGSI_FILE_SAMPLER;
fullinst->FullSrcRegisters[1].SrcRegister.Index = inst->TexSrcUnit;
break;
case OPCODE_TXB:
fullinst->Instruction.Opcode = TGSI_OPCODE_TXB;
fullinst->Instruction.NumSrcRegs = 2;
fullinst->InstructionExtTexture.Texture = map_texture_target( inst->TexSrcTarget );
fullinst->FullSrcRegisters[1].SrcRegister.File = TGSI_FILE_SAMPLER;
fullinst->FullSrcRegisters[1].SrcRegister.Index = inst->TexSrcUnit;
break;
case OPCODE_TXD:
fullinst->Instruction.Opcode = TGSI_OPCODE_TXD;
fullinst->Instruction.NumSrcRegs = 2;
fullinst->InstructionExtTexture.Texture = map_texture_target( inst->TexSrcTarget );
fullinst->FullSrcRegisters[1].SrcRegister.File = TGSI_FILE_SAMPLER;
fullinst->FullSrcRegisters[1].SrcRegister.Index = inst->TexSrcUnit;
break;
case OPCODE_TXL:
fullinst->Instruction.Opcode = TGSI_OPCODE_TXL;
fullinst->Instruction.NumSrcRegs = 2;
fullinst->InstructionExtTexture.Texture = map_texture_target( inst->TexSrcTarget );
fullinst->FullSrcRegisters[1].SrcRegister.File = TGSI_FILE_SAMPLER;
fullinst->FullSrcRegisters[1].SrcRegister.Index = inst->TexSrcUnit;
break;
case OPCODE_TXP:
fullinst->Instruction.Opcode = TGSI_OPCODE_TEX;
fullinst->Instruction.NumSrcRegs = 2;
fullinst->InstructionExtTexture.Texture = map_texture_target( inst->TexSrcTarget );
fullinst->FullSrcRegisters[0].SrcRegisterExtSwz.ExtDivide = TGSI_EXTSWIZZLE_W;
fullinst->FullSrcRegisters[1].SrcRegister.File = TGSI_FILE_SAMPLER;
fullinst->FullSrcRegisters[1].SrcRegister.Index = inst->TexSrcUnit;
break;
case OPCODE_XPD:
fullinst->Instruction.Opcode = TGSI_OPCODE_XPD;
fulldst->DstRegister.WriteMask &= TGSI_WRITEMASK_XYZ;
break;
case OPCODE_END:
return GL_TRUE;
default:
assert( 0 );
}
return GL_FALSE;
}
static struct tgsi_full_declaration
make_frag_input_decl(
GLuint first,
GLuint last,
GLuint interpolate,
GLuint usage_mask )
{
struct tgsi_full_declaration decl;
decl = tgsi_default_full_declaration();
decl.Declaration.File = TGSI_FILE_INPUT;
decl.Declaration.Declare = TGSI_DECLARE_RANGE;
decl.Declaration.UsageMask = usage_mask;
decl.Declaration.Interpolate = 1;
decl.u.DeclarationRange.First = first;
decl.u.DeclarationRange.Last = last;
decl.Interpolation.Interpolate = interpolate;
return decl;
}
static struct tgsi_full_declaration
make_frag_output_decl(
GLuint index,
GLuint semantic_name,
GLuint usage_mask )
{
struct tgsi_full_declaration decl;
decl = tgsi_default_full_declaration();
decl.Declaration.File = TGSI_FILE_OUTPUT;
decl.Declaration.Declare = TGSI_DECLARE_RANGE;
decl.Declaration.UsageMask = usage_mask;
decl.Declaration.Semantic = 1;
decl.u.DeclarationRange.First = index;
decl.u.DeclarationRange.Last = index;
decl.Semantic.SemanticName = semantic_name;
decl.Semantic.SemanticIndex = 0;
return decl;
}
GLboolean
tgsi_mesa_compile_fp_program(
const struct gl_fragment_program *program,
struct tgsi_token *tokens,
GLuint maxTokens )
{
GLuint i, ti, count;
struct tgsi_header *header;
struct tgsi_full_declaration fulldecl;
struct tgsi_full_instruction fullinst;
struct tgsi_full_dst_register *fulldst;
struct tgsi_full_src_register *fullsrc;
GLuint inputs_read;
GLboolean reads_wpos;
GLuint preamble_size = 0;
*(struct tgsi_version *) &tokens[0] = tgsi_build_version();
header = (struct tgsi_header *) &tokens[1];
*header = tgsi_build_header();
ti = 2;
reads_wpos = program->Base.InputsRead & (1 << FRAG_ATTRIB_WPOS);
inputs_read = program->Base.InputsRead | (1 << FRAG_ATTRIB_WPOS);
/*
* Declare input attributes. Note that we do not interpolate fragment position.
*/
/* Fragment position. */
if( reads_wpos ) {
fulldecl = make_frag_input_decl(
0,
0,
TGSI_INTERPOLATE_CONSTANT,
TGSI_WRITEMASK_XY );
ti += tgsi_build_full_declaration(
&fulldecl,
&tokens[ti],
header,
maxTokens - ti );
}
/* Fragment zw. */
fulldecl = make_frag_input_decl(
0,
0,
TGSI_INTERPOLATE_LINEAR,
reads_wpos ? TGSI_WRITEMASK_ZW : TGSI_WRITEMASK_Z );
ti += tgsi_build_full_declaration(
&fulldecl,
&tokens[ti],
header,
maxTokens - ti );
count = 0;
for( i = 1; i < 32; i++ ) {
if( inputs_read & (1 << i) ) {
count++;
}
}
if( count > 0 ) {
fulldecl = make_frag_input_decl(
1,
1 + count - 1,
TGSI_INTERPOLATE_LINEAR,
TGSI_WRITEMASK_XYZW );
ti += tgsi_build_full_declaration(
&fulldecl,
&tokens[ti],
header,
maxTokens - ti );
}
/*
* Declare output attributes.
*/
assert(
program->Base.OutputsWritten ==
(program->Base.OutputsWritten & ((1 << FRAG_RESULT_COLR) | (1 << FRAG_RESULT_DEPR))) );
fulldecl = make_frag_output_decl(
0,
TGSI_SEMANTIC_DEPTH,
TGSI_WRITEMASK_Z );
ti += tgsi_build_full_declaration(
&fulldecl,
&tokens[ti],
header,
maxTokens - ti );
if( program->Base.OutputsWritten & (1 << FRAG_RESULT_COLR) ) {
fulldecl = make_frag_output_decl(
1,
TGSI_SEMANTIC_COLOR,
TGSI_WRITEMASK_XYZW );
ti += tgsi_build_full_declaration(
&fulldecl,
&tokens[ti],
header,
maxTokens - ti );
}
for( i = 0; i < program->Base.NumInstructions; i++ ) {
if( compile_instruction(
&program->Base.Instructions[i],
&fullinst,
inputs_read,
preamble_size,
TGSI_PROCESSOR_FRAGMENT ) ) {
assert( i == program->Base.NumInstructions - 1 );
if (TGSI_DEBUG)
tgsi_dump(
tokens,
0/*TGSI_DUMP_VERBOSE | TGSI_DUMP_NO_IGNORED | TGSI_DUMP_NO_DEFAULT*/ );
break;
}
ti += tgsi_build_full_instruction(
&fullinst,
&tokens[ti],
header,
maxTokens - ti );
}
return GL_TRUE;
}
GLboolean
tgsi_mesa_compile_vp_program(
const struct gl_vertex_program *program,
struct tgsi_token *tokens,
GLuint maxTokens )
{
GLuint ii, ti;
struct tgsi_header *header;
struct tgsi_processor *processor;
struct tgsi_full_instruction fullinst;
GLuint inputs_read = ~0;
*(struct tgsi_version *) &tokens[0] = tgsi_build_version();
header = (struct tgsi_header *) &tokens[1];
*header = tgsi_build_header();
processor = (struct tgsi_processor *) &tokens[2];
*processor = tgsi_build_processor( TGSI_PROCESSOR_VERTEX, header );
ti = 3;
for( ii = 0; ii < program->Base.NumInstructions; ii++ ) {
if( compile_instruction(
&program->Base.Instructions[ii],
&fullinst,
inputs_read,
0,
TGSI_PROCESSOR_VERTEX ) ) {
assert( ii == program->Base.NumInstructions - 1 );
if (TGSI_DEBUG)
tgsi_dump( tokens, TGSI_DUMP_NO_IGNORED | TGSI_DUMP_NO_DEFAULT );
break;
}
ti += tgsi_build_full_instruction(
&fullinst,
&tokens[ti],
header,
maxTokens - ti );
}
return GL_TRUE;
}
|