/
mojoshader.c
2519 lines (2081 loc) · 71.7 KB
1
/**
2
3
* MojoShader; generate shader programs from bytecode of compiled
* Direct3D shaders.
4
5
6
7
8
9
*
* Please see the file LICENSE.txt in the source's root directory.
*
* This file written by Ryan C. Gordon.
*/
10
11
// !!! FIXME: I keep changing coding styles for symbols and typedefs.
12
13
14
// !!! FIXME: do DEF* and DCL_* opcodes have to come before instructions?
// !!! FIXME: my reading of the msdn spec suggests no.
15
16
17
// Shader bytecode format is described at MSDN:
// http://msdn2.microsoft.com/en-us/library/ms800307.aspx
18
#include <stdio.h>
19
#include <string.h>
20
#include <stdlib.h>
21
#include <stdint.h>
22
#include <stdarg.h>
23
#include <assert.h>
24
25
#include "mojoshader.h"
26
27
28
29
30
31
// This is the highest shader version we currently support.
#define MAX_SHADER_MAJOR 3
#define MAX_SHADER_MINOR 0
32
33
34
// You get all the profiles unless you go out of your way to disable them.
35
36
37
38
39
40
41
42
#ifndef SUPPORT_PROFILE_D3D
#define SUPPORT_PROFILE_D3D 1
#endif
#ifndef SUPPORT_PROFILE_GLSL
#define SUPPORT_PROFILE_GLSL 1
#endif
43
44
45
46
47
48
// Get basic wankery out of the way here...
typedef unsigned int uint; // this is a printf() helper. don't use for code.
typedef uint8_t uint8;
typedef uint32_t uint32;
49
typedef int32_t int32;
50
51
52
53
54
55
56
#ifdef __GNUC__
#define ISPRINTF(x,y) __attribute__((format (printf, x, y)))
#else
#define ISPRINTF(x,y)
#endif
57
58
#define STATICARRAYLEN(x) ( (sizeof ((x))) / (sizeof ((x)[0])) )
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
// Byteswap magic...
#if ((defined __GNUC__) && (defined __POWERPC__))
static inline uint32 SWAP32(uint32 x)
{
__asm__ __volatile__("lwbrx %0,0,%1" : "=r" (x) : "r" (&x));
return x;
} // SWAP32
#elif defined(__POWERPC__)
static inline uint32 SWAP32(uint32 x)
{
return ( (((x) >> 24) & 0x000000FF) | (((x) >> 8) & 0x0000FF00) |
(((x) << 8) & 0x00FF0000) | (((x) << 24) & 0xFF000000) );
} // SWAP32
#else
# define SWAP32(x) (x)
#endif
78
79
80
81
82
83
84
85
86
87
88
// Shader model version magic.
static inline uint32 ver_ui32(const uint8 major, const uint8 minor)
{
return ( (((uint32) major) << 16) | (((minor) == 0xFF) ? 0 : (minor)) );
} // version_ui32
#define SHADER_VERSION_SUPPORTED(maj, min) \
(ver_ui32(maj, min) <= ver_ui32(MAX_SHADER_MAJOR, MAX_SHADER_MINOR))
89
// predeclare.
90
typedef struct Context Context;
91
92
// one emit function for each opcode in each profile.
93
typedef void (*emit_function)(Context *ctx);
94
95
// one emit function for comments in each profile.
96
typedef void (*emit_comment)(Context *ctx, const char *str);
97
98
// one emit function for starting output in each profile.
99
typedef void (*emit_start)(Context *ctx);
100
101
// one emit function for ending output in each profile.
102
typedef void (*emit_end)(Context *ctx);
103
104
105
106
// one args function for each possible sequence of opcode arguments.
typedef int (*args_function)(Context *ctx);
107
// one state function for each opcode where we have state machine updates.
108
typedef int (*state_function)(Context *ctx);
109
110
111
112
113
114
115
typedef struct
{
const char *name;
emit_start start_emitter;
emit_end end_emitter;
emit_comment comment_emitter;
116
} Profile;
117
118
119
120
121
122
123
124
typedef enum
{
SHADER_TYPE_UNKNOWN = -1,
SHADER_TYPE_PIXEL,
SHADER_TYPE_VERTEX,
SHADER_TYPE_TOTAL
125
} ShaderType;
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
typedef enum
{
REGISTER_TYPE_TEMP = 0,
REGISTER_TYPE_INPUT = 1,
REGISTER_TYPE_CONST = 2,
REGISTER_TYPE_ADDR = 3,
REGISTER_TYPE_TEXTURE = 3, // ALSO 3!
REGISTER_TYPE_RASTOUT = 4,
REGISTER_TYPE_ATTROUT = 5,
REGISTER_TYPE_TEXCRDOUT = 6,
REGISTER_TYPE_OUTPUT = 6, // ALSO 6!
REGISTER_TYPE_CONSTINT = 7,
REGISTER_TYPE_COLOROUT = 8,
REGISTER_TYPE_DEPTHOUT = 9,
REGISTER_TYPE_SAMPLER = 10,
REGISTER_TYPE_CONST2 = 11,
REGISTER_TYPE_CONST3 = 12,
REGISTER_TYPE_CONST4 = 13,
REGISTER_TYPE_CONSTBOOL = 14,
REGISTER_TYPE_LOOP = 15,
REGISTER_TYPE_TEMPFLOAT16 = 16,
REGISTER_TYPE_MISCTYPE = 17,
REGISTER_TYPE_LABEL = 18,
REGISTER_TYPE_PREDICATE = 19,
REGISTER_TYPE_MAX = 19
152
} RegisterType;
153
154
155
156
157
158
159
typedef enum
{
RASTOUT_TYPE_POSITION = 0,
RASTOUT_TYPE_FOG = 1,
RASTOUT_TYPE_POINT_SIZE = 2,
RASTOUT_TYPE_MAX = 2
160
} RastOutType;
161
162
163
164
165
166
typedef enum
{
MISCTYPE_TYPE_POSITION = 0,
MISCTYPE_TYPE_FACE = 1,
MISCTYPE_TYPE_MAX = 1
167
} MiscTypeType;
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
typedef enum
{
DECLUSAGE_POSITION = 0,
DECLUSAGE_BLENDWEIGHT = 1,
DECLUSAGE_BLENDINDICES = 2,
DECLUSAGE_NORMAL = 3,
DECLUSAGE_PSIZE = 4,
DECLUSAGE_TEXCOORD = 5,
DECLUSAGE_TANGENT = 6,
DECLUSAGE_BINORMAL = 7,
DECLUSAGE_TESSFACTOR = 8,
DECLUSAGE_POSITIONT = 9,
DECLUSAGE_COLOR = 10,
DECLUSAGE_FOG = 11,
DECLUSAGE_DEPTH = 12,
DECLUSAGE_SAMPLE = 13
185
} DeclUsageType;
186
187
188
189
190
191
typedef enum
{
TEXTURE_TYPE_2D = 2,
TEXTURE_TYPE_CUBE = 3,
TEXTURE_TYPE_VOLUME = 4,
192
} TextureType;
193
194
195
196
197
198
199
200
201
202
203
// A simple linked list of strings, so we can build the final output without
// realloc()ing for each new line, and easily insert lines into the middle
// of the output without much trouble.
typedef struct OutputList
{
char *str;
struct OutputList *next;
} OutputList;
204
205
206
207
208
209
// result modifiers.
#define MOD_SATURATE 0x01
#define MOD_PP 0x02
#define MOD_CENTROID 0x04
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
// source modifiers.
typedef enum
{
SRCMOD_NONE,
SRCMOD_NEGATE,
SRCMOD_BIAS,
SRCMOD_BIASNEGATE,
SRCMOD_SIGN,
SRCMOD_SIGNNEGATE,
SRCMOD_COMPLEMENT,
SRCMOD_X2,
SRCMOD_X2NEGATE,
SRCMOD_DZ,
SRCMOD_DW,
SRCMOD_ABS,
SRCMOD_ABSNEGATE,
SRCMOD_NOT,
SRCMOD_TOTAL
228
} SourceMod;
229
230
231
232
typedef struct
{
233
const uint32 *token; // this is the unmolested token in the stream.
234
235
int regnum;
int relative;
236
237
238
239
240
int writemask; // xyzw or rgba (all four, not split out).
int writemask0; // x or red
int writemask1; // y or green
int writemask2; // z or blue
int writemask3; // w or alpha
241
242
243
244
245
246
247
int result_mod;
int result_shift;
int regtype;
} DestArgInfo;
typedef struct
{
248
const uint32 *token; // this is the unmolested token in the stream.
249
250
int regnum;
int relative;
251
int swizzle; // xyzw (all four, not split out).
252
253
254
255
256
257
258
259
260
int swizzle_x;
int swizzle_y;
int swizzle_z;
int swizzle_w;
int src_mod;
int regtype;
} SourceArgInfo;
261
262
#define SCRATCH_BUFFER_SIZE 256
#define SCRATCH_BUFFERS 10
263
264
// Context...this is state that changes as we parse through a shader...
265
struct Context
266
{
267
268
MOJOSHADER_malloc malloc;
MOJOSHADER_free free;
269
270
const uint32 *tokens;
uint32 tokencount;
271
272
273
OutputList output;
OutputList *output_tail;
int output_len; // total strlen; prevents walking the list just to malloc.
274
int indent;
275
276
277
const char *endline;
int endline_len;
const char *failstr;
278
char scratch[SCRATCH_BUFFERS][SCRATCH_BUFFER_SIZE];
279
280
int scratchidx; // current scratch buffer.
int profileid;
281
282
const Profile *profile;
ShaderType shader_type;
283
284
uint32 major_ver;
uint32 minor_ver;
285
286
DestArgInfo dest_args[1];
SourceArgInfo source_args[4];
287
uint32 dwords[4];
288
uint32 instruction_count;
289
uint32 instruction_controls;
290
291
292
};
293
static inline char *get_scratch_buffer(Context *ctx)
294
{
295
ctx->scratchidx = (ctx->scratchidx + 1) % SCRATCH_BUFFERS;
296
return ctx->scratch[ctx->scratchidx];
297
298
} // get_scratch_buffer
299
300
301
// Special-case return values from the parsing pipeline...
#define FAIL (-1)
302
#define END_OF_STREAM (-2)
303
304
305
306
307
308
309
310
311
312
313
314
static const char *out_of_mem_string = "Out of memory";
static inline int out_of_memory(Context *ctx)
{
if (ctx->failstr == NULL)
ctx->failstr = out_of_mem_string; // fail() would call malloc().
return FAIL;
} // out_of_memory
static int failf(Context *ctx, const char *fmt, ...) ISPRINTF(2,3);
static int failf(Context *ctx, const char *fmt, ...)
315
{
316
317
if (ctx->failstr == NULL) // don't change existing error.
{
318
char *scratch = get_scratch_buffer(ctx);
319
320
va_list ap;
va_start(ap, fmt);
321
const int len = vsnprintf(scratch,SCRATCH_BUFFER_SIZE,fmt,ap);
322
323
va_end(ap);
324
325
326
327
328
329
char *failstr = (char *) ctx->malloc(len + 1);
if (failstr == NULL)
out_of_memory(ctx);
else
{
// see comments about scratch buffer overflow in output_line().
330
if (len < SCRATCH_BUFFER_SIZE)
331
332
333
334
335
336
337
338
339
strcpy(failstr, scratch); // copy it over.
else
{
va_start(ap, fmt);
vsnprintf(failstr, len + 1, fmt, ap); // rebuild it.
va_end(ap);
} // else
ctx->failstr = failstr;
} // else
340
341
342
343
344
345
} // if
return FAIL;
} // failf
346
static inline int fail(Context *ctx, const char *reason)
347
348
349
350
351
{
return failf(ctx, "%s", reason);
} // fail
352
353
static int output_line(Context *ctx, const char *fmt, ...) ISPRINTF(2,3);
static int output_line(Context *ctx, const char *fmt, ...)
354
355
356
357
{
if (ctx->failstr != NULL)
return FAIL; // we failed previously, don't go on...
358
359
360
361
362
OutputList *item = (OutputList *) ctx->malloc(sizeof (OutputList));
if (item == NULL)
return out_of_memory(ctx);
char *scratch = get_scratch_buffer(ctx);
363
364
const int indent = ctx->indent;
365
366
if (indent > 0)
memset(scratch, '\t', indent);
367
368
va_list ap;
va_start(ap, fmt);
369
const int len = vsnprintf(scratch+indent, SCRATCH_BUFFER_SIZE-indent, fmt, ap) + indent;
370
371
va_end(ap);
372
373
item->str = (char *) ctx->malloc(len + 1);
if (item->str == NULL)
374
{
375
376
free(item);
return out_of_memory(ctx);
377
378
} // if
379
380
381
// If we overflowed our scratch buffer, that's okay. We were going to
// allocate anyhow...the scratch buffer just lets us avoid a second
// run of vsnprintf().
382
if (len < SCRATCH_BUFFER_SIZE)
383
384
385
strcpy(item->str, scratch); // copy it over.
else
{
386
387
if (indent > 0)
memset(item->str, '\t', indent);
388
va_start(ap, fmt);
389
vsnprintf(item->str+indent, len + 1, fmt, ap); // rebuild it.
390
391
va_end(ap);
} // else
392
393
394
395
396
item->next = NULL;
ctx->output_tail->next = item;
ctx->output_tail = item;
ctx->output_len += len + ctx->endline_len;
397
398
399
400
return 0;
} // output_line
401
402
// if SUPPORT_PROFILE_* isn't defined, we assume an implicit desire to support.
403
404
405
406
407
408
409
410
411
#define AT_LEAST_ONE_PROFILE 0
#if !SUPPORT_PROFILE_D3D
#define PROFILE_EMITTER_D3D(op)
#else
#undef AT_LEAST_ONE_PROFILE
#define AT_LEAST_ONE_PROFILE 1
#define PROFILE_EMITTER_D3D(op) emit_D3D_##op,
412
static const char *get_D3D_register_string(Context *ctx,
413
RegisterType regtype,
414
415
int regnum, char *regnum_str,
size_t regnum_size)
416
{
417
const char *retval = NULL;
418
int has_number = 1;
419
420
switch (regtype)
421
422
{
case REGISTER_TYPE_TEMP:
423
retval = "r";
424
425
426
break;
case REGISTER_TYPE_INPUT:
427
retval = "v";
428
429
430
break;
case REGISTER_TYPE_CONST:
431
432
433
retval = "c";
break;
434
case REGISTER_TYPE_CONST2:
435
436
437
438
retval = "c";
regnum += 2048;
break;
439
case REGISTER_TYPE_CONST3:
440
441
442
443
retval = "c";
regnum += 4096;
break;
444
case REGISTER_TYPE_CONST4:
445
retval = "c";
446
regnum += 6144;
447
448
449
break;
case REGISTER_TYPE_ADDR: // (or REGISTER_TYPE_TEXTURE, same value.)
450
retval = (ctx->shader_type == SHADER_TYPE_VERTEX) ? "a" : "t";
451
452
453
break;
case REGISTER_TYPE_RASTOUT:
454
switch ((RastOutType) regnum)
455
{
456
457
458
case RASTOUT_TYPE_POSITION: retval = "oPos"; break;
case RASTOUT_TYPE_FOG: retval = "oFog"; break;
case RASTOUT_TYPE_POINT_SIZE: retval = "oPts"; break;
459
} // switch
460
has_number = 0;
461
462
463
break;
case REGISTER_TYPE_ATTROUT:
464
retval = "oD";
465
466
467
468
break;
case REGISTER_TYPE_TEXCRDOUT: // (or REGISTER_TYPE_OUTPUT, same value.)
if ((ctx->shader_type==SHADER_TYPE_VERTEX) && (ctx->major_ver>=3))
469
retval = "o";
470
else
471
retval = "oT";
472
473
474
break;
case REGISTER_TYPE_CONSTINT:
475
retval = "i";
476
477
478
break;
case REGISTER_TYPE_COLOROUT:
479
retval = "oC";
480
481
482
break;
case REGISTER_TYPE_DEPTHOUT:
483
retval = "oDepth";
484
has_number = 0;
485
486
487
break;
case REGISTER_TYPE_SAMPLER:
488
retval = "s";
489
490
491
break;
case REGISTER_TYPE_CONSTBOOL:
492
retval = "b";
493
494
495
break;
case REGISTER_TYPE_LOOP:
496
retval = "aL";
497
has_number = 0;
498
499
500
501
502
503
break;
// !!! FIXME: don't know what the asm string is for this..
// case REGISTER_TYPE_TEMPFLOAT16:
case REGISTER_TYPE_MISCTYPE:
504
switch ((MiscTypeType) regnum)
505
{
506
507
case MISCTYPE_TYPE_POSITION: retval = "vPos"; break;
case MISCTYPE_TYPE_FACE: retval = "vFace"; break;
508
} // switch
509
has_number = 0;
510
511
512
break;
case REGISTER_TYPE_LABEL:
513
retval = "l";
514
515
516
break;
case REGISTER_TYPE_PREDICATE:
517
retval = "p";
518
519
520
break;
} // switch
521
522
523
524
525
if (has_number)
snprintf(regnum_str, regnum_size, "%u", (uint) regnum);
else
regnum_str[0] = '\0';
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
return retval;
} // get_D3D_register_string
static char *make_D3D_destarg_string(Context *ctx, const int idx)
{
if (idx >= STATICARRAYLEN(ctx->dest_args))
{
fail(ctx, "Too many destination args");
return "";
} // if
const DestArgInfo *arg = &ctx->dest_args[idx];
const char *result_shift_str = "";
switch (arg->result_shift)
{
case 0x1: result_shift_str = "_x2"; break;
case 0x2: result_shift_str = "_x4"; break;
case 0x3: result_shift_str = "_x8"; break;
case 0xD: result_shift_str = "_d8"; break;
case 0xE: result_shift_str = "_d4"; break;
case 0xF: result_shift_str = "_d2"; break;
} // switch
const char *sat_str = (arg->result_mod & MOD_SATURATE) ? "_sat" : "";
const char *pp_str = (arg->result_mod & MOD_PP) ? "_pp" : "";
const char *cent_str = (arg->result_mod & MOD_CENTROID) ? "_centroid" : "";
char regnum_str[16];
const char *regtype_str = get_D3D_register_string(ctx,
557
(RegisterType) arg->regtype,
558
559
arg->regnum, regnum_str,
sizeof (regnum_str));
560
561
562
563
564
565
if (regtype_str == NULL)
{
fail(ctx, "Unknown destination register type.");
return "";
} // if
566
567
568
569
570
571
572
573
574
575
576
577
char writemask_str[6];
int i = 0;
if (arg->writemask != 0xF) // 0xF == 1111. No explicit mask.
{
writemask_str[i++] = '.';
if (arg->writemask0) writemask_str[i++] = 'x';
if (arg->writemask1) writemask_str[i++] = 'y';
if (arg->writemask2) writemask_str[i++] = 'z';
if (arg->writemask3) writemask_str[i++] = 'w';
} // if
writemask_str[i] = '\0';
assert(i < sizeof (writemask_str));
578
579
580
// may turn out something like "_x2_sat_pp_centroid r0.xyzw" ...
char *retval = get_scratch_buffer(ctx);
581
snprintf(retval, SCRATCH_BUFFER_SIZE, "%s%s%s%s %s%s%s",
582
result_shift_str, sat_str, pp_str, cent_str,
583
regtype_str, regnum_str, writemask_str);
584
return retval;
585
} // make_D3D_destarg_string
586
587
588
static char *make_D3D_sourcearg_string(Context *ctx, const int idx)
589
{
590
591
592
if (idx >= STATICARRAYLEN(ctx->source_args))
{
fail(ctx, "Too many source args");
593
return "";
594
} // if
595
596
597
598
599
const SourceArgInfo *arg = &ctx->source_args[idx];
const char *premod_str = "";
const char *postmod_str = "";
600
switch ((SourceMod) arg->src_mod)
601
602
603
604
605
606
607
608
609
610
611
{
case SRCMOD_NEGATE:
premod_str = "-";
break;
case SRCMOD_BIASNEGATE:
premod_str = "-";
// fall through.
case SRCMOD_BIAS:
postmod_str = "_bias";
break;
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
case SRCMOD_SIGNNEGATE:
premod_str = "-";
// fall through.
case SRCMOD_SIGN:
postmod_str = "_bx2";
break;
case SRCMOD_COMPLEMENT:
premod_str = "1-";
break;
case SRCMOD_X2NEGATE:
premod_str = "-";
// fall through.
case SRCMOD_X2:
postmod_str = "_x2";
break;
case SRCMOD_DZ:
postmod_str = "_dz";
break;
case SRCMOD_DW:
postmod_str = "_dw";
break;
case SRCMOD_ABSNEGATE:
premod_str = "-";
// fall through.
case SRCMOD_ABS:
postmod_str = "_abs";
break;
case SRCMOD_NOT:
premod_str = "!";
break;
} // switch
char regnum_str[16];
const char *regtype_str = get_D3D_register_string(ctx,
654
(RegisterType) arg->regtype,
655
656
657
658
659
660
661
662
663
664
665
arg->regnum, regnum_str,
sizeof (regnum_str));
if (regtype_str == NULL)
{
fail(ctx, "Unknown source register type.");
return "";
} // if
char swizzle_str[6];
int i = 0;
666
if (arg->swizzle != 0xE4) // 0xE4 == 11100100 ... 3 2 1 0. No swizzle.
667
668
669
{
static const char channel[] = { 'x', 'y', 'z', 'w' };
swizzle_str[i++] = '.';
670
671
672
673
674
675
676
677
swizzle_str[i++] = channel[arg->swizzle_x];
swizzle_str[i++] = channel[arg->swizzle_y];
swizzle_str[i++] = channel[arg->swizzle_z];
swizzle_str[i++] = channel[arg->swizzle_w];
// .xyzz is the same as .xyz, .z is the same as .zzzz, etc.
while (swizzle_str[i-1] == swizzle_str[i-2])
i--;
678
679
680
681
682
} // if
swizzle_str[i] = '\0';
assert(i < sizeof (swizzle_str));
char *retval = get_scratch_buffer(ctx);
683
684
snprintf(retval, SCRATCH_BUFFER_SIZE, "%s%s%s%s%s",
premod_str, regtype_str, regnum_str, postmod_str, swizzle_str);
685
return retval;
686
} // make_D3D_sourcearg_string
687
688
689
static void emit_D3D_start(Context *ctx)
690
691
692
{
const uint major = (uint) ctx->major_ver;
const uint minor = (uint) ctx->minor_ver;
693
694
695
696
697
698
699
700
701
const char *shadertype_str = NULL;
char minor_str[16];
if (minor == 0xFF)
strcpy(minor_str, "sw");
else if (minor == 0x1) // apparently this is "vs_2_x". Weird.
strcpy(minor_str, "x");
else
snprintf(minor_str, sizeof (minor_str), "%u", (uint) minor);
702
703
if (ctx->shader_type == SHADER_TYPE_PIXEL)
704
shadertype_str = "ps";
705
else if (ctx->shader_type == SHADER_TYPE_VERTEX)
706
shadertype_str = "vs";
707
else
708
709
710
{
failf(ctx, "Shader type %u unsupported in this profile.",
(uint) ctx->shader_type);
711
return;
712
} // else
713
714
output_line(ctx, "%s_%u_%s", shadertype_str, major, minor_str);
715
716
} // emit_D3D_start
717
718
static void emit_D3D_end(Context *ctx)
719
{
720
output_line(ctx, "end");
721
} // emit_D3D_end
722
723
724
static void emit_D3D_comment(Context *ctx, const char *str)
725
{
726
727
output_line(ctx, "; %s", str);
} // emit_D3D_comment
728
729
730
static void emit_D3D_RESERVED(Context *ctx)
731
{
732
733
734
// do nothing; fails in the state machine.
} // emit_D3D_RESERVED
735
736
737
738
// Generic D3D opcode emitters. A list of macros generate all the entry points
// that call into these...
739
740
741
742
743
744
745
746
747
748
749
750
static char *lowercase(char *dst, const char *src)
{
int i = 0;
do
{
const char ch = src[i];
dst[i] = (((ch >= 'A') && (ch <= 'Z')) ? (ch - ('A' - 'a')) : ch);
} while (src[i++]);
return dst;
} // lowercase
751
static void emit_D3D_opcode_d(Context *ctx, const char *opcode)
752
{
753
const char *dst0 = make_D3D_destarg_string(ctx, 0);
754
opcode = lowercase(get_scratch_buffer(ctx), opcode);
755
output_line(ctx, "%s%s", opcode, dst0);
756
757
758
} // emit_D3D_opcode_d
759
static void emit_D3D_opcode_s(Context *ctx, const char *opcode)
760
{
761
const char *src0 = make_D3D_destarg_string(ctx, 0);
762
opcode = lowercase(get_scratch_buffer(ctx), opcode);
763
output_line(ctx, "%s %s", opcode, src0);
764
765
766
} // emit_D3D_opcode_s
767
static void emit_D3D_opcode_ss(Context *ctx, const char *opcode)
768
{
769
770
const char *src0 = make_D3D_sourcearg_string(ctx, 0);
const char *src1 = make_D3D_sourcearg_string(ctx, 1);
771
opcode = lowercase(get_scratch_buffer(ctx), opcode);
772
output_line(ctx, "%s %s, %s", opcode, src0, src1);
773
} // emit_D3D_opcode_ss
774
775
776
static void emit_D3D_opcode_ds(Context *ctx, const char *opcode)
777
{
778
779
const char *dst0 = make_D3D_destarg_string(ctx, 0);
const char *src0 = make_D3D_sourcearg_string(ctx, 0);
780
opcode = lowercase(get_scratch_buffer(ctx), opcode);
781
output_line(ctx, "%s%s, %s", opcode, dst0, src0);
782
783
784
} // emit_D3D_opcode_ds
785
static void emit_D3D_opcode_dss(Context *ctx, const char *opcode)
786
{
787
788
789
const char *dst0 = make_D3D_destarg_string(ctx, 0);
const char *src0 = make_D3D_sourcearg_string(ctx, 0);
const char *src1 = make_D3D_sourcearg_string(ctx, 1);
790
opcode = lowercase(get_scratch_buffer(ctx), opcode);
791
output_line(ctx, "%s%s, %s, %s", opcode, dst0, src0, src1);
792
793
794
} // emit_D3D_opcode_dss
795
static void emit_D3D_opcode_dsss(Context *ctx, const char *opcode)
796
{
797
798
799
800
const char *dst0 = make_D3D_destarg_string(ctx, 0);
const char *src0 = make_D3D_sourcearg_string(ctx, 0);
const char *src1 = make_D3D_sourcearg_string(ctx, 1);
const char *src2 = make_D3D_sourcearg_string(ctx, 2);
801
opcode = lowercase(get_scratch_buffer(ctx), opcode);
802
output_line(ctx, "%s%s, %s, %s, %s", opcode, dst0, src0, src1, src2);
803
804
805
} // emit_D3D_opcode_dsss
806
static void emit_D3D_opcode_dssss(Context *ctx, const char *opcode)
807
{
808
809
810
811
812
const char *dst0 = make_D3D_destarg_string(ctx, 0);
const char *src0 = make_D3D_sourcearg_string(ctx, 0);
const char *src1 = make_D3D_sourcearg_string(ctx, 1);
const char *src2 = make_D3D_sourcearg_string(ctx, 2);
const char *src3 = make_D3D_sourcearg_string(ctx, 3);
813
opcode = lowercase(get_scratch_buffer(ctx), opcode);
814
output_line(ctx,"%s%s, %s, %s, %s, %s",opcode,dst0,src0,src1,src2,src3);
815
816
817
} // emit_D3D_opcode_dssss
818
819
820
821
822
823
824
static void emit_D3D_opcode(Context *ctx, const char *opcode)
{
opcode = lowercase(get_scratch_buffer(ctx), opcode);
output_line(ctx, "%s", opcode);
} // emit_D3D_opcode_dssss
825
#define EMIT_D3D_OPCODE_FUNC(op) \
826
static void emit_D3D_##op(Context *ctx) { \
827
emit_D3D_opcode(ctx, #op); \
828
829
}
#define EMIT_D3D_OPCODE_D_FUNC(op) \
830
static void emit_D3D_##op(Context *ctx) { \
831
832
833
emit_D3D_opcode_d(ctx, #op); \
}
#define EMIT_D3D_OPCODE_S_FUNC(op) \
834
static void emit_D3D_##op(Context *ctx) { \
835
836
837
emit_D3D_opcode_s(ctx, #op); \
}
#define EMIT_D3D_OPCODE_SS_FUNC(op) \
838
static void emit_D3D_##op(Context *ctx) { \
839
840
841
emit_D3D_opcode_ss(ctx, #op); \
}
#define EMIT_D3D_OPCODE_DS_FUNC(op) \
842
static void emit_D3D_##op(Context *ctx) { \
843
844
845
emit_D3D_opcode_ds(ctx, #op); \
}
#define EMIT_D3D_OPCODE_DSS_FUNC(op) \
846
static void emit_D3D_##op(Context *ctx) { \
847
848
849
emit_D3D_opcode_dss(ctx, #op); \
}
#define EMIT_D3D_OPCODE_DSSS_FUNC(op) \
850
static void emit_D3D_##op(Context *ctx) { \
851
852
853
emit_D3D_opcode_dsss(ctx, #op); \
}
#define EMIT_D3D_OPCODE_DSSSS_FUNC(op) \
854
static void emit_D3D_##op(Context *ctx) { \
855
856
857
858
859
860
861
862
863
864
865
866
867
868
869
870
871
872
873
874
875
876
877
878
879
880
881
882
883
884
emit_D3D_opcode_dssss(ctx, #op); \
}
EMIT_D3D_OPCODE_FUNC(NOP)
EMIT_D3D_OPCODE_DS_FUNC(MOV)
EMIT_D3D_OPCODE_DSS_FUNC(ADD)
EMIT_D3D_OPCODE_DSS_FUNC(SUB)
EMIT_D3D_OPCODE_DSSS_FUNC(MAD)
EMIT_D3D_OPCODE_DSS_FUNC(MUL)
EMIT_D3D_OPCODE_DS_FUNC(RCP)
EMIT_D3D_OPCODE_DS_FUNC(RSQ)
EMIT_D3D_OPCODE_DSS_FUNC(DP3)
EMIT_D3D_OPCODE_DSS_FUNC(DP4)
EMIT_D3D_OPCODE_DSS_FUNC(MIN)
EMIT_D3D_OPCODE_DSS_FUNC(MAX)
EMIT_D3D_OPCODE_DSS_FUNC(SLT)
EMIT_D3D_OPCODE_DSS_FUNC(SGE)
EMIT_D3D_OPCODE_DS_FUNC(EXP)
EMIT_D3D_OPCODE_DS_FUNC(LOG)
EMIT_D3D_OPCODE_DS_FUNC(LIT)
EMIT_D3D_OPCODE_DSS_FUNC(DST)
EMIT_D3D_OPCODE_DSSS_FUNC(LRP)
EMIT_D3D_OPCODE_DS_FUNC(FRC)
EMIT_D3D_OPCODE_DSS_FUNC(M4X4)
EMIT_D3D_OPCODE_DSS_FUNC(M4X3)
EMIT_D3D_OPCODE_DSS_FUNC(M3X4)
EMIT_D3D_OPCODE_DSS_FUNC(M3X3)
EMIT_D3D_OPCODE_DSS_FUNC(M3X2)
EMIT_D3D_OPCODE_S_FUNC(CALL)
EMIT_D3D_OPCODE_SS_FUNC(CALLNZ)
885
EMIT_D3D_OPCODE_SS_FUNC(LOOP)
886
887
888
889
890
891
892
893
894
895
896
897
898
899
900
901
902
903
904
905
906
907
908
909
910
911
912
913
914
915
916
917
918
919
920
921
922
923
924
925
926
927
928
929
930
EMIT_D3D_OPCODE_FUNC(RET)
EMIT_D3D_OPCODE_FUNC(ENDLOOP)
EMIT_D3D_OPCODE_S_FUNC(LABEL)
EMIT_D3D_OPCODE_DSS_FUNC(POW)
EMIT_D3D_OPCODE_DSS_FUNC(CRS)
EMIT_D3D_OPCODE_DSSS_FUNC(SGN)
EMIT_D3D_OPCODE_DS_FUNC(ABS)
EMIT_D3D_OPCODE_DS_FUNC(NRM)
EMIT_D3D_OPCODE_DS_FUNC(SINCOS)
EMIT_D3D_OPCODE_S_FUNC(REP)
EMIT_D3D_OPCODE_FUNC(ENDREP)
EMIT_D3D_OPCODE_S_FUNC(IF)
EMIT_D3D_OPCODE_FUNC(ELSE)
EMIT_D3D_OPCODE_FUNC(ENDIF)
EMIT_D3D_OPCODE_FUNC(BREAK)
EMIT_D3D_OPCODE_DS_FUNC(MOVA)
EMIT_D3D_OPCODE_FUNC(TEXCOORD) // !!! FIXME!
EMIT_D3D_OPCODE_D_FUNC(TEXKILL)
EMIT_D3D_OPCODE_FUNC(TEX) // !!! FIXME!
EMIT_D3D_OPCODE_DS_FUNC(TEXBEM)
EMIT_D3D_OPCODE_DS_FUNC(TEXBEML)
EMIT_D3D_OPCODE_DS_FUNC(TEXREG2AR)
EMIT_D3D_OPCODE_DS_FUNC(TEXREG2GB)
EMIT_D3D_OPCODE_DS_FUNC(TEXM3X2PAD)
EMIT_D3D_OPCODE_DS_FUNC(TEXM3X2TEX)
EMIT_D3D_OPCODE_DS_FUNC(TEXM3X3PAD)
EMIT_D3D_OPCODE_DS_FUNC(TEXM3X3TEX)
EMIT_D3D_OPCODE_DSS_FUNC(TEXM3X3SPEC)
EMIT_D3D_OPCODE_DS_FUNC(TEXM3X3VSPEC)
EMIT_D3D_OPCODE_DS_FUNC(EXPP)
EMIT_D3D_OPCODE_DS_FUNC(LOGP)
EMIT_D3D_OPCODE_DSSS_FUNC(CND)
EMIT_D3D_OPCODE_DS_FUNC(TEXREG2RGB)
EMIT_D3D_OPCODE_DS_FUNC(TEXDP3TEX)
EMIT_D3D_OPCODE_DS_FUNC(TEXM3X2DEPTH)
EMIT_D3D_OPCODE_DS_FUNC(TEXDP3)
EMIT_D3D_OPCODE_DS_FUNC(TEXM3X3)
EMIT_D3D_OPCODE_D_FUNC(TEXDEPTH)
EMIT_D3D_OPCODE_DSSS_FUNC(CMP)
EMIT_D3D_OPCODE_DSS_FUNC(BEM)
EMIT_D3D_OPCODE_DSSS_FUNC(DP2ADD)
EMIT_D3D_OPCODE_DS_FUNC(DSX)
EMIT_D3D_OPCODE_DS_FUNC(DSY)
EMIT_D3D_OPCODE_DSSSS_FUNC(TEXLDD)
EMIT_D3D_OPCODE_DSS_FUNC(TEXLDL)
931
EMIT_D3D_OPCODE_S_FUNC(BREAKP)
932
933
934
935
936
937
938
939
940
941
942
943
944
945
946
947
948
949
950
951
// special cases for comparison opcodes...
static const char *get_D3D_comparison_string(Context *ctx)
{
static const char *comps[] = {
"", "_gt", "_eq", "_ge", "_lt", "_ne", "_le"
};
if (ctx->instruction_controls >= STATICARRAYLEN(comps))
{
fail(ctx, "unknown comparison control");
return "";
} // if
return comps[ctx->instruction_controls];
} // get_D3D_comparison_string
static void emit_D3D_BREAKC(Context *ctx)
{
char op[16];
952
snprintf(op, sizeof (op), "break%s", get_D3D_comparison_string(ctx));
953
954
955
956
957
958
emit_D3D_opcode_ss(ctx, op);
} // emit_D3D_BREAKC
static void emit_D3D_IFC(Context *ctx)
{
char op[16];
959
snprintf(op, sizeof (op), "if%s", get_D3D_comparison_string(ctx));
960
961
962
963
964
965
emit_D3D_opcode_ss(ctx, op);
} // emit_D3D_IFC
static void emit_D3D_SETP(Context *ctx)
{
char op[16];
966
snprintf(op, sizeof (op), "setp%s", get_D3D_comparison_string(ctx));
967
968
969
emit_D3D_opcode_dss(ctx, op);
} // emit_D3D_SETP
970
971
972
973
974
975
976
977
978
979
980
981
982
983
984
985
986
987
988
989
990
991
992
993
994
// !!! FIXME: this is sort of nasty.
static void floatstr(Context *ctx, char *buf, size_t bufsize, float f)
{
const size_t len = snprintf(buf, bufsize, "%f", f);
if (len >= bufsize)
fail(ctx, "BUG: internal buffer is too small");
else
{
char *end = buf + len;
char *ptr = strchr(buf, '.');
if (ptr == NULL)
return; // done.
while (--end != ptr)
{
if (*end != '0')
{
end++;
break;
} // if
} // while
*end = '\0'; // chop extra '0' or all decimal places off.
} // else
} // floatstr
995
996
997
static void emit_D3D_DEF(Context *ctx)
{
const char *dst0 = make_D3D_destarg_string(ctx, 0);
998
999
1000
const float *val = (const float *) ctx->dwords; // !!! FIXME: could be int?
char val0[32];
char val1[32];