forked from farbrausch/fr_public
-
Notifications
You must be signed in to change notification settings - Fork 0
/
soundsys.cpp
669 lines (585 loc) · 11.8 KB
/
soundsys.cpp
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
//#define HDRECORD
#include "types.h"
#include "soundsys.h"
#include "synth.h"
#include "dsio.h"
#ifdef HDRECORD
#include "wtlbla/file.h"
static fileS rawout;
#endif
#ifdef _DEBUG
int ssCPUUsage;
#endif
/*
Format:
+ d fraction
+ d maxtime
+ d anzahl globevs
- b * globevs tdlo
- b * globevs tdhi
- b * globevs tdhi2
- d * globevs usecs
- b * globevs num
- b * globevs den
- b * globevs tpq
* for channels 0-15:
+ d anzahl notes
(alles folgende nur wenn != 0 !!!)
- b * notes tdlo
- b * notes tdhi
- b * notes tdhi2
- b * notes v0
- b * notes v1
+ d anzahl pgmchange
- b * pgmch tdlo
- b * pgmch tdhi
- b * pgmch tdhi2
- b * pgmch v0
+ d anzahl pitchbends
- b * pitch tdlo
- b * pitch tdhi
- b * pitch tdhi2
- b * pitch v0
- b * pitch v1
* for controllers 1-7
+ d anzahl ctlchanges
- b * ctlch tdlo
- b * ctlch tdhi
- b * ctlch tdhi2
- b * ctlch v0
*/
#ifdef RULESYNC
static struct rsEvent
{
sU32 cursmp;
sU32 pos;
} rsqueue[256];
static sU8 rsrpos;
static sU8 rswpos;
static sS32 rscurpos;
static sS32 rstimeoffs;
#endif
// nicht drüber nachdenken.
static struct _ssbase {
sU8 *patchmap;
sU8 *globals;
sU32 timediv;
sU32 timediv2;
sU32 maxtime;
sU8 *gptr;
sU32 gdnum;
struct _basech {
sU32 notenum;
sU8 *noteptr;
sU32 pcnum;
sU8 *pcptr;
sU32 pbnum;
sU8 *pbptr;
struct _bcctl {
sU32 ccnum;
sU8 *ccptr;
} ctl[7];
} chan[16];
} base;
void ssInitBase(sU8 *d, _ssbase &dest)
{
dest.timediv=(*((sU32*)(d)));
dest.timediv2=10000*dest.timediv;
dest.maxtime=*((sU32*)(d+4));
dest.gdnum=*((sU32*)(d+8));
d+=12;
dest.gptr=d;
d+=10*dest.gdnum;
for (sInt ch=0; ch<16; ch++)
{
_ssbase::_basech &c=dest.chan[ch];
c.notenum=*((sU32*)d);
d+=4;
if (c.notenum)
{
c.noteptr=d;
d+=5*c.notenum;
c.pcnum=*((sU32*)d);
d+=4;
c.pcptr=d;
d+=4*c.pcnum;
c.pbnum=*((sU32*)d);
d+=4;
c.pbptr=d;
d+=5*c.pbnum;
for (sInt cn=0; cn<7; cn++)
{
_ssbase::_basech::_bcctl &cc=c.ctl[cn];
cc.ccnum=*((sU32*)d);
d+=4;
cc.ccptr=d;
d+=4*cc.ccnum;
}
}
}
sInt size=*((sU32*)d);
d+=4;
dest.globals=d;
d+=size;
size=*((sU32*)d);
d+=4;
dest.patchmap=d;
d+=size;
}
static struct _ssstat
{
sBool running;
sBool silent;
sU32 time;
sU32 nexttime;
sU8 *gptr;
sU32 gnt;
sU32 gnr;
sU32 usecs;
sU32 num;
sU32 den;
sU32 tpq;
sU32 bar;
sU32 beat;
sU32 tick;
struct _statch {
sU8 *noteptr;
sU32 notenr;
sU32 notent;
sU8 lastnte;
sU8 lastvel;
sU8 *pcptr;
sU32 pcnr;
sU32 pcnt;
sU8 lastpc;
sU8 *pbptr;
sU32 pbnr;
sU32 pbnt;
sU8 lastpb0;
sU8 lastpb1;
struct _scctl {
sU8 *ccptr;
sU32 ccnt;
sU32 ccnr;
sU8 lastcc;
} ctl[7];
} chan[16];
sU32 cursmpl;
sU32 smpldelta;
sU32 smplrem;
sU32 tdif;
} state;
static sU8 midibuf[4096];
#define GETDELTA(p, w) ((p)[0]+((p)[w]<<8)+((p)[2*w]<<16))
#define UPDATENT(n, v, p, w) if ((n)<(w)) { (v)=state.time+GETDELTA((p), (w)); if ((v)<state.nexttime) state.nexttime=(v); }
#define UPDATENT2(n, v, p, w) if ((n)<(w) && GETDELTA((p), (w))) { (v)=state.time+GETDELTA((p), (w)); }
#define UPDATENT3(n, v, p, w) if ((n)<(w) && (v)<state.nexttime) state.nexttime=(v);
#define PUTSTAT(s) { sU8 bla=(s); if (laststat!=bla) { laststat=bla; *mptr++=(sU8)laststat; }};
void ssReset()
{
state.time=0;
state.nexttime=(sU32)-1;
state.gptr=base.gptr;
state.gnr=0;
UPDATENT(state.gnr, state.gnt, state.gptr, base.gdnum);
for (sInt ch=0; ch<16; ch++)
{
_ssbase::_basech &bc=base.chan[ch];
_ssstat::_statch &sc=state.chan[ch];
if (!bc.notenum) continue;
sc.noteptr=bc.noteptr;
sc.notenr=sc.lastnte=sc.lastvel=0;
UPDATENT(sc.notenr,sc.notent, sc.noteptr, bc.notenum);
sc.pcptr=bc.pcptr;
sc.pcnr=sc.lastpc=0;
UPDATENT(sc.pcnr,sc.pcnt, sc.pcptr, bc.pcnum);
sc.pbptr=bc.pbptr;
sc.pbnr=sc.lastpb0=sc.lastpb1=0;
UPDATENT(sc.pbnr,sc.pbnt, sc.pbptr, bc.pcnum);
for (sInt cn=0; cn<7; cn++)
{
_ssbase::_basech::_bcctl &bcc=bc.ctl[cn];
_ssstat::_statch::_scctl &scc=sc.ctl[cn];
scc.ccptr=bcc.ccptr;
scc.ccnr=scc.lastcc=0;
UPDATENT(scc.ccnr,scc.ccnt,scc.ccptr,bcc.ccnum);
}
}
state.usecs=500000*441;
state.num=4;
state.den=4;
state.tpq=8;
state.bar=0;
state.beat=0;
state.tick=0;
state.smplrem=0;
#ifdef RULESYNC
rsrpos=rswpos=0;
rscurpos=-1;
#endif
synthInit(base.patchmap);
synthSetGlobals(base.globals);
}
void ssTick()
{
if (!state.running)
return;
state.tick+=state.nexttime-state.time;
while (state.tick>=base.timediv)
{
state.tick-=base.timediv;
state.beat++;
}
sU32 qpb=(state.num*4/state.den);
while (state.beat>=qpb)
{
state.beat-=qpb;
state.bar++;
}
state.time=state.nexttime;
state.nexttime=(sU32)-1;
sU8 *mptr=midibuf;
sU32 laststat=-1;
if (state.gnr<base.gdnum && state.time==state.gnt) // neues global-event?
{
state.usecs=(*(sU32 *)(state.gptr+3*base.gdnum+4*state.gnr))*441;
state.num=state.gptr[7*base.gdnum+state.gnr];
state.den=state.gptr[8*base.gdnum+state.gnr];
state.tpq=state.gptr[9*base.gdnum+state.gnr];
state.gnr++;
UPDATENT2(state.gnr, state.gnt, state.gptr+state.gnr, base.gdnum);
}
UPDATENT3(state.gnr, state.gnt, state.gptr+state.gnr, base.gdnum);
for (sInt ch=0; ch<16; ch++)
{
_ssbase::_basech &bc=base.chan[ch];
_ssstat::_statch &sc=state.chan[ch];
if (!bc.notenum)
continue;
// 1. process pgm change events
if (sc.pcnr<bc.pcnum && state.time==sc.pcnt)
{
PUTSTAT(0xc0|ch)
*mptr++=(sc.lastpc+=sc.pcptr[3*bc.pcnum]);
sc.pcnr++;
sc.pcptr++;
UPDATENT2(sc.pcnr,sc.pcnt,sc.pcptr,bc.pcnum);
}
UPDATENT3(sc.pcnr,sc.pcnt,sc.pcptr,bc.pcnum);
// 2. process control changes
for (sInt cn=0; cn<7; cn++)
{
_ssbase::_basech::_bcctl &bcc=bc.ctl[cn];
_ssstat::_statch::_scctl &scc=sc.ctl[cn];
if (scc.ccnr<bcc.ccnum && state.time==scc.ccnt)
{
PUTSTAT(0xb0|ch)
*mptr++=cn+1;
*mptr++=(scc.lastcc+=scc.ccptr[3*bcc.ccnum]);
scc.ccnr++;
scc.ccptr++;
UPDATENT2(scc.ccnr,scc.ccnt,scc.ccptr,bcc.ccnum);
}
UPDATENT3(scc.ccnr,scc.ccnt,scc.ccptr,bcc.ccnum);
}
// 3. process pitch bends
if (sc.pbnr<bc.pbnum && state.time==sc.pbnt)
{
PUTSTAT(0xe0|ch)
*mptr++=(sc.lastpb0+=sc.pbptr[3*bc.pcnum]);
*mptr++=(sc.lastpb1+=sc.pbptr[4*bc.pcnum]);
sc.pbnr++;
sc.pbptr++;
UPDATENT2(sc.pbnr,sc.pbnt,sc.pbptr,bc.pbnum);
}
UPDATENT3(sc.pbnr,sc.pbnt,sc.pbptr,bc.pbnum);
// 4. process notes
while (sc.notenr<bc.notenum && state.time==sc.notent)
{
PUTSTAT(0x90|ch)
*mptr++=(sc.lastnte+=sc.noteptr[3*bc.notenum]);
*mptr++=(sc.lastvel+=sc.noteptr[4*bc.notenum]);
sc.notenr++;
sc.noteptr++;
UPDATENT2(sc.notenr,sc.notent,sc.noteptr,bc.notenum);
}
UPDATENT3(sc.notenr,sc.notent,sc.noteptr,bc.notenum);
}
*mptr++=0xfd;
synthProcessMIDI(midibuf);
if (state.nexttime==(sU32)-1)
state.running=0;
}
void __stdcall ssRender(sF32 *outbuf, sU32 len)
{
#ifdef _DEBUG
int oldsmpl=dsGetCurSmp();
int oldlen=len;
#endif
#ifdef HDRECORD
int hdlen=len;
sF32 *hdbuf=outbuf;
#endif
if (state.running && !state.silent)
{
while (len)
{
sInt torender=(len>state.smpldelta)?state.smpldelta:len;
{
if (torender)
synthRender(outbuf,torender);
}
outbuf+=2*torender;
len-=torender;
state.smpldelta-=torender;
state.cursmpl+=torender;
if (!state.smpldelta)
{
ssTick();
if (state.running)
{
__asm {
mov eax, [state.nexttime]
sub eax, [state.time]
mov ebx, [state.usecs]
mul ebx
mov ebx, [base.timediv2]
div ebx
add [state.smplrem], edx
adc eax, 0
mov [state.smpldelta], eax
}
}
else
state.smpldelta=-1;
#ifdef RULESYNC
sU32 pb32=(state.num*32/state.den);
sU32 tb32=8*state.beat+8*state.tick/base.timediv;
sU32 curpos=(state.bar<<16)|(tb32<<8)|(pb32);
if (rsrpos==(sU8)(rswpos+1)) rsrpos++;
rsqueue[rswpos].cursmp=state.cursmpl;
rsqueue[rswpos].pos=curpos;
rswpos++;
#endif
}
}
}
else
{
if (state.silent)
__asm {
mov edi, [outbuf]
mov ecx, [len]
shl ecx, 1
xor eax, eax
rep stosd
}
else
synthRender(outbuf,len);
state.cursmpl+=len;
}
#ifdef _DEBUG
oldsmpl=((dsGetCurSmp()-oldsmpl+0x10000)&0xffff)/4;
ssCPUUsage=100*oldsmpl/oldlen;
#endif
#ifdef HDRECORD
if (!state.silent)
{
sS16 bla[2*65536];
for (int hs=0; hs<2*hdlen; hs++)
bla[hs]=(sS16)(32768.0f*hdbuf[hs]);
rawout.write(bla,4*hdlen);
}
#endif
}
void __stdcall ssInit(sU8 *d, void *hWnd)
{
ssInitBase(d,base);
#ifdef HDRECORD
rawout.open("out.raw",fileS::wr|fileS::cr);
#endif
ssReset();
state.cursmpl=state.smpldelta=0;
state.running=0;
state.silent=1;
dsInit(ssRender,hWnd);
dsSetVolume(1.0f);
}
void __stdcall ssFadeOut(sU32 time)
{
dsFadeOut(time*44100/TIMER_TICKS_PER_SEC);
}
void __stdcall ssClose()
{
dsClose();
#ifdef HDRECORD
rawout.close();
#endif
}
sS32 __stdcall ssGetTime()
{
sS32 bla=dsGetCurSmp()-state.tdif;
__asm
{
mov eax, [bla]
mov ebx, TIMER_TICKS_PER_SEC
imul ebx
mov ebx, 176400
idiv ebx
mov [bla], eax
}
return bla;
}
void __stdcall ssPlay()
{
ssStop();
ssReset();
state.silent=0;
state.running=1;
state.tdif=4*state.cursmpl;
#ifdef RULESYNC
rstimeoffs=-(sS32)4*state.cursmpl;
#endif
}
void __stdcall ssStop()
{
state.running=0;
state.silent=1;
// MIDI-Reset schicken!
}
void __stdcall ssDoTick()
{
dsTick();
}
#ifdef RULESYNC
sS32 __stdcall ssGetPos()
{
if (!state.running)
return rscurpos;
sS32 realsmp=dsGetCurSmp();
while (rsrpos!=rswpos && (sS32)rsqueue[rsrpos].cursmp<=realsmp)
rscurpos=rsqueue[rsrpos++].pos;
return rscurpos;
}
sU32 __stdcall ssCalcPositions(sS32 **dest, sU8 *otherv2m)
{
_ssbase mybase;
if (otherv2m)
ssInitBase(otherv2m,mybase);
else
mybase=base;
// step 1: ende finden
sS32 *&dp=*dest;
sU32 gnr=0;
sU8* gp=mybase.gptr;
sU32 curbar=0;
sU32 cur32th=0;
sU32 lastevtime=0;
sU32 pb32=32;
sU32 usecs=500000;
sU32 posnum=0;
sU32 ttime, td, this32;
sF64 curtimer=0;
while (gnr<mybase.gdnum)
{
ttime=lastevtime+(gp[2*mybase.gdnum]<<16)+(gp[mybase.gdnum]<<8)+gp[0];
td=ttime-lastevtime;
this32=(td*8/mybase.timediv);
posnum+=this32;
lastevtime=ttime;
pb32=gp[7*mybase.gdnum]*32/gp[8*mybase.gdnum];
gnr++;
gp++;
}
td=mybase.maxtime-lastevtime;
this32=(td*8/mybase.timediv);
posnum+=this32+1;
dp=new sS32[2*posnum];
gnr=0;
gp=mybase.gptr;
lastevtime=0;
pb32=32;
for (sU32 pn=0; pn<posnum; pn++)
{
sU32 curtime=pn*mybase.timediv/8;
if (gnr<mybase.gdnum)
{
ttime=lastevtime+(gp[2*mybase.gdnum+gnr]<<16)+(gp[mybase.gdnum+gnr]<<8)+gp[gnr];
if (curtime>=ttime)
{
pb32=gp[7*mybase.gdnum+gnr]*32/gp[8*mybase.gdnum+gnr];
usecs=*(sU32 *)(gp+3*mybase.gdnum+4*gnr);
gnr++;
lastevtime=ttime;
}
}
dp[2*pn]=(sU32)curtimer;
dp[2*pn+1]=(curbar<<16)|(cur32th<<8)|(pb32);
cur32th++;
if (cur32th==pb32)
{
cur32th=0;
curbar++;
}
curtimer+=TIMER_TICKS_PER_SEC*usecs/8000000.0;
}
return pn;
}
void __stdcall ssPlayFrom(sS32 time)
{
state.silent=1;
ssStop();
ssReset();
sU32 destsmpl, cursmpl=0;
__asm
{
mov eax, [time]
mov ebx, 44100
imul ebx
mov ebx, TIMER_TICKS_PER_SEC
idiv ebx
mov [destsmpl], eax
}
state.running=1;
state.smpldelta=0;
state.smplrem=0;
while ((cursmpl+state.smpldelta)<destsmpl && state.running)
{
cursmpl+=state.smpldelta;
ssTick();
if (state.running)
{
__asm {
mov eax, [state.nexttime]
sub eax, [state.time]
mov ebx, [state.usecs]
mul ebx
mov ebx, [base.timediv2]
div ebx
add [state.smplrem], edx
adc eax, 0
mov [state.smpldelta], eax
}
}
else
state.smpldelta=-1;
}
rstimeoffs=4*cursmpl-4*state.cursmpl;
state.silent=0;
}
sS32 __stdcall ssGetSongTime()
{
sS32 bla=dsGetCurSmp();
bla+=rstimeoffs;
__asm
{
mov eax, [bla]
mov ebx, TIMER_TICKS_PER_SEC
imul ebx
mov ebx, 176400
idiv ebx
mov [bla], eax
}
return bla;
}
#endif