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ef79bbde P |
1 | /*************************************************************************** |
2 | spu.c - description | |
3 | ------------------- | |
4 | begin : Wed May 15 2002 | |
5 | copyright : (C) 2002 by Pete Bernert | |
6 | email : BlackDove@addcom.de | |
07a6dd2c | 7 | |
e4f075af | 8 | Portions (C) GraÅžvydas "notaz" Ignotas, 2010-2012 |
07a6dd2c | 9 | |
ef79bbde P |
10 | ***************************************************************************/ |
11 | /*************************************************************************** | |
12 | * * | |
13 | * This program is free software; you can redistribute it and/or modify * | |
14 | * it under the terms of the GNU General Public License as published by * | |
15 | * the Free Software Foundation; either version 2 of the License, or * | |
16 | * (at your option) any later version. See also the license.txt file for * | |
17 | * additional informations. * | |
18 | * * | |
19 | ***************************************************************************/ | |
20 | ||
21 | #include "stdafx.h" | |
22 | ||
23 | #define _IN_SPU | |
24 | ||
25 | #include "externals.h" | |
3fc2a4c2 | 26 | #include "registers.h" |
07c13dfd | 27 | #include "out.h" |
665f33e1 | 28 | #include "arm_features.h" |
ef79bbde P |
29 | |
30 | #ifdef ENABLE_NLS | |
31 | #include <libintl.h> | |
32 | #include <locale.h> | |
33 | #define _(x) gettext(x) | |
34 | #define N_(x) (x) | |
35 | #else | |
36 | #define _(x) (x) | |
37 | #define N_(x) (x) | |
38 | #endif | |
39 | ||
a80ae4a0 | 40 | #ifdef __ARM_ARCH_7A__ |
1775933a | 41 | #define ssat32_to_16(v) \ |
42 | asm("ssat %0,#16,%1" : "=r" (v) : "r" (v)) | |
43 | #else | |
44 | #define ssat32_to_16(v) do { \ | |
45 | if (v < -32768) v = -32768; \ | |
46 | else if (v > 32767) v = 32767; \ | |
47 | } while (0) | |
48 | #endif | |
49 | ||
fb552464 | 50 | #define PSXCLK 33868800 /* 33.8688 MHz */ |
51 | ||
650adfd2 | 52 | // intended to be ~1 frame |
53 | #define IRQ_NEAR_BLOCKS 32 | |
54 | ||
6d866bb7 | 55 | /* |
ef79bbde P |
56 | #if defined (USEMACOSX) |
57 | static char * libraryName = N_("Mac OS X Sound"); | |
58 | #elif defined (USEALSA) | |
59 | static char * libraryName = N_("ALSA Sound"); | |
60 | #elif defined (USEOSS) | |
61 | static char * libraryName = N_("OSS Sound"); | |
62 | #elif defined (USESDL) | |
63 | static char * libraryName = N_("SDL Sound"); | |
64 | #elif defined (USEPULSEAUDIO) | |
65 | static char * libraryName = N_("PulseAudio Sound"); | |
66 | #else | |
67 | static char * libraryName = N_("NULL Sound"); | |
68 | #endif | |
69 | ||
70 | static char * libraryInfo = N_("P.E.Op.S. Sound Driver V1.7\nCoded by Pete Bernert and the P.E.Op.S. team\n"); | |
6d866bb7 | 71 | */ |
ef79bbde P |
72 | |
73 | // globals | |
74 | ||
75 | // psx buffer / addresses | |
76 | ||
77 | unsigned short regArea[10000]; | |
78 | unsigned short spuMem[256*1024]; | |
79 | unsigned char * spuMemC; | |
80 | unsigned char * pSpuIrq=0; | |
81 | unsigned char * pSpuBuffer; | |
ef79bbde P |
82 | |
83 | // user settings | |
84 | ||
9e7a7352 | 85 | int iVolume=768; // 1024 is 1.0 |
ef79bbde | 86 | int iXAPitch=1; |
ef79bbde P |
87 | int iUseReverb=2; |
88 | int iUseInterpolation=2; | |
ef79bbde P |
89 | |
90 | // MAIN infos struct for each channel | |
91 | ||
92 | SPUCHAN s_chan[MAXCHAN+1]; // channel + 1 infos (1 is security for fmod handling) | |
93 | REVERBInfo rvb; | |
94 | ||
b1094d0e | 95 | unsigned int dwNoiseVal; // global noise generator |
96 | unsigned int dwNoiseCount; | |
ef79bbde P |
97 | |
98 | unsigned short spuCtrl=0; // some vars to store psx reg infos | |
99 | unsigned short spuStat=0; | |
100 | unsigned short spuIrq=0; | |
101 | unsigned long spuAddr=0xffffffff; // address into spu mem | |
ef79bbde P |
102 | int bSpuInit=0; |
103 | int bSPUIsOpen=0; | |
104 | ||
174c454a | 105 | unsigned int dwNewChannel=0; // flags for faster testing, if new channel starts |
106 | unsigned int dwChannelOn=0; // not silent channels | |
107 | unsigned int dwPendingChanOff=0; | |
108 | unsigned int dwChannelDead=0; // silent+not useful channels | |
ef79bbde P |
109 | |
110 | void (CALLBACK *irqCallback)(void)=0; // func of main emu, called on spu irq | |
111 | void (CALLBACK *cddavCallback)(unsigned short,unsigned short)=0; | |
650adfd2 | 112 | void (CALLBACK *scheduleCallback)(unsigned int)=0; |
ef79bbde P |
113 | |
114 | // certain globals (were local before, but with the new timeproc I need em global) | |
115 | ||
6d866bb7 | 116 | static const int f[8][2] = { { 0, 0 }, |
ef79bbde P |
117 | { 60, 0 }, |
118 | { 115, -52 }, | |
119 | { 98, -55 }, | |
120 | { 122, -60 } }; | |
b17618c0 | 121 | int ChanBuf[NSSIZE+3]; |
122 | int SSumLR[(NSSIZE+3)*2]; | |
ef79bbde | 123 | int iFMod[NSSIZE]; |
ef79bbde P |
124 | short * pS; |
125 | ||
b72f17a1 | 126 | static int decode_dirty_ch; |
127 | int decode_pos; | |
650adfd2 | 128 | unsigned int cycles_played; |
ef79bbde | 129 | |
983a7cfd | 130 | #define CDDA_BUFFER_SIZE (16384 * sizeof(uint32_t)) // must be power of 2 |
131 | ||
ef79bbde P |
132 | //////////////////////////////////////////////////////////////////////// |
133 | // CODE AREA | |
134 | //////////////////////////////////////////////////////////////////////// | |
135 | ||
136 | // dirty inline func includes | |
137 | ||
138 | #include "reverb.c" | |
139 | #include "adsr.c" | |
140 | ||
141 | //////////////////////////////////////////////////////////////////////// | |
142 | // helpers for simple interpolation | |
143 | ||
144 | // | |
145 | // easy interpolation on upsampling, no special filter, just "Pete's common sense" tm | |
146 | // | |
147 | // instead of having n equal sample values in a row like: | |
148 | // ____ | |
149 | // |____ | |
150 | // | |
151 | // we compare the current delta change with the next delta change. | |
152 | // | |
153 | // if curr_delta is positive, | |
154 | // | |
155 | // - and next delta is smaller (or changing direction): | |
156 | // \. | |
157 | // -__ | |
158 | // | |
159 | // - and next delta significant (at least twice) bigger: | |
160 | // --_ | |
161 | // \. | |
162 | // | |
163 | // - and next delta is nearly same: | |
164 | // \. | |
165 | // \. | |
166 | // | |
167 | // | |
168 | // if curr_delta is negative, | |
169 | // | |
170 | // - and next delta is smaller (or changing direction): | |
171 | // _-- | |
172 | // / | |
173 | // | |
174 | // - and next delta significant (at least twice) bigger: | |
175 | // / | |
176 | // __- | |
177 | // | |
178 | // - and next delta is nearly same: | |
179 | // / | |
180 | // / | |
181 | // | |
182 | ||
183 | ||
184 | INLINE void InterpolateUp(int ch) | |
185 | { | |
186 | if(s_chan[ch].SB[32]==1) // flag == 1? calc step and set flag... and don't change the value in this pass | |
187 | { | |
188 | const int id1=s_chan[ch].SB[30]-s_chan[ch].SB[29]; // curr delta to next val | |
189 | const int id2=s_chan[ch].SB[31]-s_chan[ch].SB[30]; // and next delta to next-next val :) | |
190 | ||
191 | s_chan[ch].SB[32]=0; | |
192 | ||
193 | if(id1>0) // curr delta positive | |
194 | { | |
195 | if(id2<id1) | |
196 | {s_chan[ch].SB[28]=id1;s_chan[ch].SB[32]=2;} | |
197 | else | |
198 | if(id2<(id1<<1)) | |
199 | s_chan[ch].SB[28]=(id1*s_chan[ch].sinc)/0x10000L; | |
200 | else | |
201 | s_chan[ch].SB[28]=(id1*s_chan[ch].sinc)/0x20000L; | |
202 | } | |
203 | else // curr delta negative | |
204 | { | |
205 | if(id2>id1) | |
206 | {s_chan[ch].SB[28]=id1;s_chan[ch].SB[32]=2;} | |
207 | else | |
208 | if(id2>(id1<<1)) | |
209 | s_chan[ch].SB[28]=(id1*s_chan[ch].sinc)/0x10000L; | |
210 | else | |
211 | s_chan[ch].SB[28]=(id1*s_chan[ch].sinc)/0x20000L; | |
212 | } | |
213 | } | |
214 | else | |
215 | if(s_chan[ch].SB[32]==2) // flag 1: calc step and set flag... and don't change the value in this pass | |
216 | { | |
217 | s_chan[ch].SB[32]=0; | |
218 | ||
219 | s_chan[ch].SB[28]=(s_chan[ch].SB[28]*s_chan[ch].sinc)/0x20000L; | |
76d1d09c | 220 | //if(s_chan[ch].sinc<=0x8000) |
221 | // s_chan[ch].SB[29]=s_chan[ch].SB[30]-(s_chan[ch].SB[28]*((0x10000/s_chan[ch].sinc)-1)); | |
222 | //else | |
223 | s_chan[ch].SB[29]+=s_chan[ch].SB[28]; | |
ef79bbde P |
224 | } |
225 | else // no flags? add bigger val (if possible), calc smaller step, set flag1 | |
226 | s_chan[ch].SB[29]+=s_chan[ch].SB[28]; | |
227 | } | |
228 | ||
229 | // | |
230 | // even easier interpolation on downsampling, also no special filter, again just "Pete's common sense" tm | |
231 | // | |
232 | ||
233 | INLINE void InterpolateDown(int ch) | |
234 | { | |
235 | if(s_chan[ch].sinc>=0x20000L) // we would skip at least one val? | |
236 | { | |
237 | s_chan[ch].SB[29]+=(s_chan[ch].SB[30]-s_chan[ch].SB[29])/2; // add easy weight | |
238 | if(s_chan[ch].sinc>=0x30000L) // we would skip even more vals? | |
239 | s_chan[ch].SB[29]+=(s_chan[ch].SB[31]-s_chan[ch].SB[30])/2;// add additional next weight | |
240 | } | |
241 | } | |
242 | ||
243 | //////////////////////////////////////////////////////////////////////// | |
244 | // helpers for gauss interpolation | |
245 | ||
246 | #define gval0 (((short*)(&s_chan[ch].SB[29]))[gpos]) | |
f05d6ca2 | 247 | #define gval(x) ((int)((short*)(&s_chan[ch].SB[29]))[(gpos+x)&3]) |
ef79bbde P |
248 | |
249 | #include "gauss_i.h" | |
250 | ||
251 | //////////////////////////////////////////////////////////////////////// | |
252 | ||
253 | #include "xa.c" | |
254 | ||
e4f075af | 255 | static void do_irq(void) |
256 | { | |
257 | //if(!(spuStat & STAT_IRQ)) | |
258 | { | |
259 | spuStat |= STAT_IRQ; // asserted status? | |
260 | if(irqCallback) irqCallback(); | |
261 | } | |
262 | } | |
263 | ||
264 | static int check_irq(int ch, unsigned char *pos) | |
265 | { | |
266 | if((spuCtrl & CTRL_IRQ) && pos == pSpuIrq) | |
267 | { | |
268 | //printf("ch%d irq %04x\n", ch, pos - spuMemC); | |
269 | do_irq(); | |
270 | return 1; | |
271 | } | |
272 | return 0; | |
273 | } | |
274 | ||
ef79bbde P |
275 | //////////////////////////////////////////////////////////////////////// |
276 | // START SOUND... called by main thread to setup a new sound on a channel | |
277 | //////////////////////////////////////////////////////////////////////// | |
278 | ||
279 | INLINE void StartSound(int ch) | |
280 | { | |
281 | StartADSR(ch); | |
282 | StartREVERB(ch); | |
283 | ||
b00afb77 | 284 | // fussy timing issues - do in VoiceOn |
285 | //s_chan[ch].pCurr=s_chan[ch].pStart; // set sample start | |
286 | //s_chan[ch].bStop=0; | |
287 | //s_chan[ch].bOn=1; | |
ef79bbde | 288 | |
381ea103 | 289 | s_chan[ch].SB[26]=0; // init mixing vars |
290 | s_chan[ch].SB[27]=0; | |
ef79bbde P |
291 | s_chan[ch].iSBPos=28; |
292 | ||
ef79bbde P |
293 | s_chan[ch].SB[29]=0; // init our interpolation helpers |
294 | s_chan[ch].SB[30]=0; | |
295 | ||
296 | if(iUseInterpolation>=2) // gauss interpolation? | |
297 | {s_chan[ch].spos=0x30000L;s_chan[ch].SB[28]=0;} // -> start with more decoding | |
298 | else {s_chan[ch].spos=0x10000L;s_chan[ch].SB[31]=0;} // -> no/simple interpolation starts with one 44100 decoding | |
299 | ||
300 | dwNewChannel&=~(1<<ch); // clear new channel bit | |
301 | } | |
302 | ||
303 | //////////////////////////////////////////////////////////////////////// | |
304 | // ALL KIND OF HELPERS | |
305 | //////////////////////////////////////////////////////////////////////// | |
306 | ||
07a6dd2c | 307 | INLINE int FModChangeFrequency(int ch,int ns) |
ef79bbde | 308 | { |
7e44d49d | 309 | unsigned int NP=s_chan[ch].iRawPitch; |
07a6dd2c | 310 | int sinc; |
ef79bbde P |
311 | |
312 | NP=((32768L+iFMod[ns])*NP)/32768L; | |
313 | ||
314 | if(NP>0x3fff) NP=0x3fff; | |
315 | if(NP<0x1) NP=0x1; | |
316 | ||
7e44d49d | 317 | sinc=NP<<4; // calc frequency |
ef79bbde | 318 | if(iUseInterpolation==1) // freq change in simple interpolation mode |
07a6dd2c | 319 | s_chan[ch].SB[32]=1; |
ef79bbde | 320 | iFMod[ns]=0; |
07a6dd2c | 321 | |
322 | return sinc; | |
ef79bbde P |
323 | } |
324 | ||
325 | //////////////////////////////////////////////////////////////////////// | |
326 | ||
ef79bbde P |
327 | INLINE void StoreInterpolationVal(int ch,int fa) |
328 | { | |
329 | if(s_chan[ch].bFMod==2) // fmod freq channel | |
330 | s_chan[ch].SB[29]=fa; | |
331 | else | |
332 | { | |
381ea103 | 333 | ssat32_to_16(fa); |
ef79bbde P |
334 | |
335 | if(iUseInterpolation>=2) // gauss/cubic interpolation | |
336 | { | |
337 | int gpos = s_chan[ch].SB[28]; | |
338 | gval0 = fa; | |
339 | gpos = (gpos+1) & 3; | |
340 | s_chan[ch].SB[28] = gpos; | |
341 | } | |
342 | else | |
343 | if(iUseInterpolation==1) // simple interpolation | |
344 | { | |
345 | s_chan[ch].SB[28] = 0; | |
346 | s_chan[ch].SB[29] = s_chan[ch].SB[30]; // -> helpers for simple linear interpolation: delay real val for two slots, and calc the two deltas, for a 'look at the future behaviour' | |
347 | s_chan[ch].SB[30] = s_chan[ch].SB[31]; | |
348 | s_chan[ch].SB[31] = fa; | |
349 | s_chan[ch].SB[32] = 1; // -> flag: calc new interolation | |
350 | } | |
351 | else s_chan[ch].SB[29]=fa; // no interpolation | |
352 | } | |
353 | } | |
354 | ||
355 | //////////////////////////////////////////////////////////////////////// | |
356 | ||
8cd23d6d | 357 | INLINE int iGetInterpolationVal(int ch, int spos) |
ef79bbde P |
358 | { |
359 | int fa; | |
360 | ||
361 | if(s_chan[ch].bFMod==2) return s_chan[ch].SB[29]; | |
362 | ||
363 | switch(iUseInterpolation) | |
364 | { | |
365 | //--------------------------------------------------// | |
366 | case 3: // cubic interpolation | |
367 | { | |
368 | long xd;int gpos; | |
8cd23d6d | 369 | xd = (spos >> 1)+1; |
ef79bbde P |
370 | gpos = s_chan[ch].SB[28]; |
371 | ||
372 | fa = gval(3) - 3*gval(2) + 3*gval(1) - gval0; | |
373 | fa *= (xd - (2<<15)) / 6; | |
374 | fa >>= 15; | |
375 | fa += gval(2) - gval(1) - gval(1) + gval0; | |
376 | fa *= (xd - (1<<15)) >> 1; | |
377 | fa >>= 15; | |
378 | fa += gval(1) - gval0; | |
379 | fa *= xd; | |
380 | fa >>= 15; | |
381 | fa = fa + gval0; | |
382 | ||
383 | } break; | |
384 | //--------------------------------------------------// | |
385 | case 2: // gauss interpolation | |
386 | { | |
387 | int vl, vr;int gpos; | |
8cd23d6d | 388 | vl = (spos >> 6) & ~3; |
ef79bbde | 389 | gpos = s_chan[ch].SB[28]; |
f05d6ca2 | 390 | vr=(gauss[vl]*(int)gval0)&~2047; |
ef79bbde P |
391 | vr+=(gauss[vl+1]*gval(1))&~2047; |
392 | vr+=(gauss[vl+2]*gval(2))&~2047; | |
393 | vr+=(gauss[vl+3]*gval(3))&~2047; | |
394 | fa = vr>>11; | |
395 | } break; | |
396 | //--------------------------------------------------// | |
397 | case 1: // simple interpolation | |
398 | { | |
399 | if(s_chan[ch].sinc<0x10000L) // -> upsampling? | |
400 | InterpolateUp(ch); // --> interpolate up | |
401 | else InterpolateDown(ch); // --> else down | |
402 | fa=s_chan[ch].SB[29]; | |
403 | } break; | |
404 | //--------------------------------------------------// | |
405 | default: // no interpolation | |
406 | { | |
407 | fa=s_chan[ch].SB[29]; | |
408 | } break; | |
409 | //--------------------------------------------------// | |
410 | } | |
411 | ||
412 | return fa; | |
413 | } | |
414 | ||
381ea103 | 415 | static void decode_block_data(int *dest, const unsigned char *src, int predict_nr, int shift_factor) |
416 | { | |
417 | int nSample; | |
418 | int fa, s_1, s_2, d, s; | |
419 | ||
420 | s_1 = dest[27]; | |
421 | s_2 = dest[26]; | |
422 | ||
423 | for (nSample = 0; nSample < 28; src++) | |
424 | { | |
425 | d = (int)*src; | |
426 | s = (int)(signed short)((d & 0x0f) << 12); | |
427 | ||
428 | fa = s >> shift_factor; | |
429 | fa += ((s_1 * f[predict_nr][0])>>6) + ((s_2 * f[predict_nr][1])>>6); | |
430 | s_2=s_1;s_1=fa; | |
431 | ||
432 | dest[nSample++] = fa; | |
433 | ||
434 | s = (int)(signed short)((d & 0xf0) << 8); | |
435 | fa = s >> shift_factor; | |
436 | fa += ((s_1 * f[predict_nr][0])>>6) + ((s_2 * f[predict_nr][1])>>6); | |
437 | s_2=s_1;s_1=fa; | |
438 | ||
439 | dest[nSample++] = fa; | |
440 | } | |
441 | } | |
442 | ||
e11ae5c5 | 443 | static int decode_block(int ch) |
444 | { | |
445 | unsigned char *start; | |
381ea103 | 446 | int predict_nr,shift_factor,flags; |
f9fe4923 | 447 | int stop = 0; |
e11ae5c5 | 448 | int ret = 0; |
449 | ||
f9fe4923 | 450 | start = s_chan[ch].pCurr; // set up the current pos |
451 | if(start == spuMemC) // ? | |
452 | stop = 1; | |
e11ae5c5 | 453 | |
e4f075af | 454 | if(s_chan[ch].prevflags&1) // 1: stop/loop |
3fc2a4c2 | 455 | { |
e4f075af | 456 | if(!(s_chan[ch].prevflags&2)) |
f9fe4923 | 457 | stop = 1; |
e4f075af | 458 | |
459 | start = s_chan[ch].pLoop; | |
3fc2a4c2 | 460 | } |
89cb2058 | 461 | else |
462 | ret = check_irq(ch, start); // hack, see check_irq below.. | |
e11ae5c5 | 463 | |
f9fe4923 | 464 | if(stop) |
465 | { | |
466 | dwChannelOn &= ~(1<<ch); // -> turn everything off | |
467 | s_chan[ch].bStop = 1; | |
468 | s_chan[ch].ADSRX.EnvelopeVol = 0; | |
469 | } | |
470 | ||
381ea103 | 471 | predict_nr=(int)start[0]; |
e11ae5c5 | 472 | shift_factor=predict_nr&0xf; |
473 | predict_nr >>= 4; | |
e11ae5c5 | 474 | |
381ea103 | 475 | decode_block_data(s_chan[ch].SB, start + 2, predict_nr, shift_factor); |
e11ae5c5 | 476 | |
381ea103 | 477 | flags=(int)start[1]; |
478 | if(flags&4) | |
479 | s_chan[ch].pLoop=start; // loop adress | |
e11ae5c5 | 480 | |
381ea103 | 481 | start+=16; |
3fc2a4c2 | 482 | |
89cb2058 | 483 | if(flags&1) { // 1: stop/loop |
3fc2a4c2 | 484 | start = s_chan[ch].pLoop; |
89cb2058 | 485 | ret |= check_irq(ch, start); // hack.. :( |
486 | } | |
e11ae5c5 | 487 | |
e4f075af | 488 | if (start - spuMemC >= 0x80000) |
174c454a | 489 | start = spuMemC; |
e4f075af | 490 | |
381ea103 | 491 | s_chan[ch].pCurr = start; // store values for next cycle |
e4f075af | 492 | s_chan[ch].prevflags = flags; |
e11ae5c5 | 493 | |
494 | return ret; | |
495 | } | |
496 | ||
07a6dd2c | 497 | // do block, but ignore sample data |
498 | static int skip_block(int ch) | |
499 | { | |
500 | unsigned char *start = s_chan[ch].pCurr; | |
501 | int flags = start[1]; | |
89cb2058 | 502 | int ret = check_irq(ch, start); |
07a6dd2c | 503 | |
e4f075af | 504 | if(s_chan[ch].prevflags & 1) |
505 | start = s_chan[ch].pLoop; | |
07a6dd2c | 506 | |
381ea103 | 507 | if(flags & 4) |
be1cb678 | 508 | s_chan[ch].pLoop = start; |
07a6dd2c | 509 | |
e4f075af | 510 | start += 16; |
07a6dd2c | 511 | |
512 | if(flags & 1) | |
e4f075af | 513 | start = s_chan[ch].pLoop; |
07a6dd2c | 514 | |
e4f075af | 515 | s_chan[ch].pCurr = start; |
516 | s_chan[ch].prevflags = flags; | |
517 | ||
89cb2058 | 518 | return ret; |
07a6dd2c | 519 | } |
520 | ||
650adfd2 | 521 | // if irq is going to trigger sooner than in upd_samples, set upd_samples |
522 | static void scan_for_irq(int ch, unsigned int *upd_samples) | |
523 | { | |
524 | int pos, sinc, sinc_inv, end; | |
525 | unsigned char *block; | |
526 | int flags; | |
527 | ||
528 | block = s_chan[ch].pCurr; | |
529 | pos = s_chan[ch].spos; | |
530 | sinc = s_chan[ch].sinc; | |
531 | end = pos + *upd_samples * sinc; | |
532 | ||
533 | pos += (28 - s_chan[ch].iSBPos) << 16; | |
534 | while (pos < end) | |
535 | { | |
536 | if (block == pSpuIrq) | |
537 | break; | |
538 | flags = block[1]; | |
539 | block += 16; | |
540 | if (flags & 1) { // 1: stop/loop | |
541 | block = s_chan[ch].pLoop; | |
542 | if (block == pSpuIrq) // hack.. (see decode_block) | |
543 | break; | |
544 | } | |
545 | pos += 28 << 16; | |
546 | } | |
547 | ||
548 | if (pos < end) | |
549 | { | |
550 | sinc_inv = s_chan[ch].sinc_inv; | |
551 | if (sinc_inv == 0) | |
552 | sinc_inv = s_chan[ch].sinc_inv = (0x80000000u / (uint32_t)sinc) << 1; | |
553 | ||
554 | pos -= s_chan[ch].spos; | |
555 | *upd_samples = (((uint64_t)pos * sinc_inv) >> 32) + 1; | |
556 | //xprintf("ch%02d: irq sched: %3d %03d\n", | |
557 | // ch, *upd_samples, *upd_samples * 60 * 263 / 44100); | |
558 | } | |
559 | } | |
560 | ||
07a6dd2c | 561 | #define make_do_samples(name, fmod_code, interp_start, interp1_code, interp2_code, interp_end) \ |
650adfd2 | 562 | static noinline int do_samples_##name(int ch, int ns, int ns_to) \ |
07a6dd2c | 563 | { \ |
564 | int sinc = s_chan[ch].sinc; \ | |
565 | int spos = s_chan[ch].spos; \ | |
381ea103 | 566 | int sbpos = s_chan[ch].iSBPos; \ |
567 | int *SB = s_chan[ch].SB; \ | |
07a6dd2c | 568 | int ret = -1; \ |
569 | int d, fa; \ | |
570 | interp_start; \ | |
571 | \ | |
572 | for (; ns < ns_to; ns++) \ | |
573 | { \ | |
574 | fmod_code; \ | |
575 | \ | |
650adfd2 | 576 | spos += sinc; \ |
07a6dd2c | 577 | while (spos >= 0x10000) \ |
578 | { \ | |
650adfd2 | 579 | fa = SB[sbpos++]; \ |
580 | if(sbpos >= 28) \ | |
07a6dd2c | 581 | { \ |
381ea103 | 582 | sbpos = 0; \ |
07a6dd2c | 583 | d = decode_block(ch); \ |
f2aec10a | 584 | if(d) \ |
650adfd2 | 585 | ret = /*ns_to =*/ ns + 1; \ |
07a6dd2c | 586 | } \ |
587 | \ | |
07a6dd2c | 588 | interp1_code; \ |
589 | spos -= 0x10000; \ | |
590 | } \ | |
591 | \ | |
592 | interp2_code; \ | |
07a6dd2c | 593 | } \ |
594 | \ | |
07a6dd2c | 595 | s_chan[ch].sinc = sinc; \ |
596 | s_chan[ch].spos = spos; \ | |
381ea103 | 597 | s_chan[ch].iSBPos = sbpos; \ |
07a6dd2c | 598 | interp_end; \ |
599 | \ | |
600 | return ret; \ | |
601 | } | |
602 | ||
603 | #define fmod_recv_check \ | |
604 | if(s_chan[ch].bFMod==1 && iFMod[ns]) \ | |
605 | sinc = FModChangeFrequency(ch,ns) | |
606 | ||
607 | make_do_samples(default, fmod_recv_check, , | |
608 | StoreInterpolationVal(ch, fa), | |
8cd23d6d | 609 | ChanBuf[ns] = iGetInterpolationVal(ch, spos), ) |
07a6dd2c | 610 | make_do_samples(noint, , fa = s_chan[ch].SB[29], , ChanBuf[ns] = fa, s_chan[ch].SB[29] = fa) |
611 | ||
612 | #define simple_interp_store \ | |
613 | s_chan[ch].SB[28] = 0; \ | |
614 | s_chan[ch].SB[29] = s_chan[ch].SB[30]; \ | |
615 | s_chan[ch].SB[30] = s_chan[ch].SB[31]; \ | |
616 | s_chan[ch].SB[31] = fa; \ | |
617 | s_chan[ch].SB[32] = 1 | |
618 | ||
619 | #define simple_interp_get \ | |
620 | if(sinc<0x10000) /* -> upsampling? */ \ | |
621 | InterpolateUp(ch); /* --> interpolate up */ \ | |
622 | else InterpolateDown(ch); /* --> else down */ \ | |
623 | ChanBuf[ns] = s_chan[ch].SB[29] | |
624 | ||
625 | make_do_samples(simple, , , | |
626 | simple_interp_store, simple_interp_get, ) | |
627 | ||
650adfd2 | 628 | static noinline int do_samples_noise(int ch, int ns, int ns_to) |
07a6dd2c | 629 | { |
b1094d0e | 630 | int level, shift, bit; |
89cb2058 | 631 | int ret = -1, d; |
b1094d0e | 632 | |
07a6dd2c | 633 | s_chan[ch].spos += s_chan[ch].sinc * (ns_to - ns); |
634 | while (s_chan[ch].spos >= 28*0x10000) | |
635 | { | |
89cb2058 | 636 | d = skip_block(ch); |
637 | if (d) | |
638 | ret = ns_to; | |
07a6dd2c | 639 | s_chan[ch].spos -= 28*0x10000; |
640 | } | |
641 | ||
b1094d0e | 642 | // modified from DrHell/shalma, no fraction |
643 | level = (spuCtrl >> 10) & 0x0f; | |
644 | level = 0x8000 >> level; | |
645 | ||
07a6dd2c | 646 | for (; ns < ns_to; ns++) |
b1094d0e | 647 | { |
648 | dwNoiseCount += 2; | |
649 | if (dwNoiseCount >= level) | |
650 | { | |
651 | dwNoiseCount -= level; | |
652 | shift = (dwNoiseVal >> 10) & 0x1f; | |
653 | bit = (0x69696969 >> shift) & 1; | |
654 | if (dwNoiseVal & 0x8000) | |
655 | bit ^= 1; | |
656 | dwNoiseVal = (dwNoiseVal << 1) | bit; | |
657 | } | |
658 | ||
659 | ChanBuf[ns] = (signed short)dwNoiseVal; | |
660 | } | |
07a6dd2c | 661 | |
89cb2058 | 662 | return ret; |
07a6dd2c | 663 | } |
664 | ||
665f33e1 | 665 | #ifdef HAVE_ARMV5 |
3a721c1f | 666 | // asm code; lv and rv must be 0-3fff |
b17618c0 | 667 | extern void mix_chan(int start, int count, int lv, int rv); |
668 | extern void mix_chan_rvb(int start, int count, int lv, int rv); | |
669 | #else | |
670 | static void mix_chan(int start, int count, int lv, int rv) | |
671 | { | |
672 | int *dst = SSumLR + start * 2; | |
673 | const int *src = ChanBuf + start; | |
674 | int l, r; | |
675 | ||
676 | while (count--) | |
677 | { | |
678 | int sval = *src++; | |
679 | ||
680 | l = (sval * lv) >> 14; | |
681 | r = (sval * rv) >> 14; | |
682 | *dst++ += l; | |
683 | *dst++ += r; | |
684 | } | |
685 | } | |
686 | ||
687 | static void mix_chan_rvb(int start, int count, int lv, int rv) | |
688 | { | |
689 | int *dst = SSumLR + start * 2; | |
690 | int *drvb = sRVBStart + start * 2; | |
691 | const int *src = ChanBuf + start; | |
692 | int l, r; | |
693 | ||
694 | while (count--) | |
695 | { | |
696 | int sval = *src++; | |
697 | ||
698 | l = (sval * lv) >> 14; | |
699 | r = (sval * rv) >> 14; | |
700 | *dst++ += l; | |
701 | *dst++ += r; | |
702 | *drvb++ += l; | |
703 | *drvb++ += r; | |
704 | } | |
705 | } | |
706 | #endif | |
707 | ||
b72f17a1 | 708 | // 0x0800-0x0bff Voice 1 |
709 | // 0x0c00-0x0fff Voice 3 | |
650adfd2 | 710 | static noinline void do_decode_bufs(int which, int start, int count) |
b72f17a1 | 711 | { |
712 | const int *src = ChanBuf + start; | |
713 | unsigned short *dst = &spuMem[0x800/2 + which*0x400/2]; | |
ee9afdbd | 714 | int cursor = decode_pos + start; |
b72f17a1 | 715 | |
716 | while (count-- > 0) | |
717 | { | |
ee9afdbd | 718 | cursor &= 0x1ff; |
b72f17a1 | 719 | dst[cursor] = *src++; |
ee9afdbd | 720 | cursor++; |
b72f17a1 | 721 | } |
722 | ||
723 | // decode_pos is updated and irqs are checked later, after voice loop | |
724 | } | |
725 | ||
ef79bbde P |
726 | //////////////////////////////////////////////////////////////////////// |
727 | // MAIN SPU FUNCTION | |
6d75977b | 728 | // here is the main job handler... |
ef79bbde P |
729 | // basically the whole sound processing is done in this fat func! |
730 | //////////////////////////////////////////////////////////////////////// | |
731 | ||
650adfd2 | 732 | void do_samples(unsigned int cycles_to) |
ef79bbde | 733 | { |
650adfd2 | 734 | const int ns_from = 0; |
735 | int ns,ns_to,ns_len; | |
9e7a7352 | 736 | int volmult = iVolume; |
174c454a | 737 | int ch,d,silentch; |
650adfd2 | 738 | int cycle_diff; |
ef79bbde | 739 | |
650adfd2 | 740 | cycle_diff = cycles_to - cycles_played; |
741 | if (cycle_diff < -2*1048576 || cycle_diff > 2*1048576) | |
742 | { | |
743 | //xprintf("desync %u %d\n", cycles_to, cycle_diff); | |
744 | cycles_played = cycles_to; | |
745 | return; | |
746 | } | |
e34a4bd3 | 747 | |
650adfd2 | 748 | if (cycle_diff < 2 * 768) |
749 | return; | |
e34a4bd3 | 750 | |
650adfd2 | 751 | ns_to = (cycle_diff / 768 + 1) & ~1; |
752 | if (ns_to > NSSIZE) { | |
753 | // should never happen | |
754 | //xprintf("ns_to oflow %d %d\n", ns_to, NSSIZE); | |
755 | ns_to = NSSIZE; | |
756 | } | |
757 | ||
758 | ////////////////////////////////////////////////////// | |
759 | // special irq handling in the decode buffers (0x0000-0x1000) | |
760 | // we know: | |
761 | // the decode buffers are located in spu memory in the following way: | |
762 | // 0x0000-0x03ff CD audio left | |
763 | // 0x0400-0x07ff CD audio right | |
764 | // 0x0800-0x0bff Voice 1 | |
765 | // 0x0c00-0x0fff Voice 3 | |
766 | // and decoded data is 16 bit for one sample | |
767 | // we assume: | |
768 | // even if voices 1/3 are off or no cd audio is playing, the internal | |
769 | // play positions will move on and wrap after 0x400 bytes. | |
770 | // Therefore: we just need a pointer from spumem+0 to spumem+3ff, and | |
771 | // increase this pointer on each sample by 2 bytes. If this pointer | |
772 | // (or 0x400 offsets of this pointer) hits the spuirq address, we generate | |
773 | // an IRQ. | |
774 | ||
775 | if (unlikely((spuCtrl & CTRL_IRQ) && pSpuIrq && pSpuIrq < spuMemC+0x1000)) | |
776 | { | |
777 | int irq_pos = (pSpuIrq - spuMemC) / 2 & 0x1ff; | |
778 | int left = (irq_pos - decode_pos) & 0x1ff; | |
779 | if (0 < left && left <= ns_to) | |
780 | { | |
781 | //xprintf("decoder irq %x\n", decode_pos); | |
782 | do_irq(); | |
650adfd2 | 783 | } |
784 | } | |
785 | ||
786 | InitREVERB(ns_to); | |
ef79bbde | 787 | |
650adfd2 | 788 | { |
174c454a | 789 | silentch=~(dwChannelOn|dwNewChannel); |
790 | ||
ef79bbde P |
791 | //--------------------------------------------------// |
792 | //- main channel loop -// | |
793 | //--------------------------------------------------// | |
794 | { | |
650adfd2 | 795 | for(ch=0;ch<MAXCHAN;ch++) // loop em all... |
ef79bbde | 796 | { |
6d866bb7 | 797 | if(dwNewChannel&(1<<ch)) StartSound(ch); // start new sound |
798 | if(!(dwChannelOn&(1<<ch))) continue; // channel not playing? next | |
ef79bbde | 799 | |
07a6dd2c | 800 | if(s_chan[ch].bNoise) |
650adfd2 | 801 | do_samples_noise(ch, ns_from, ns_to); |
07a6dd2c | 802 | else if(s_chan[ch].bFMod==2 || (s_chan[ch].bFMod==0 && iUseInterpolation==0)) |
650adfd2 | 803 | do_samples_noint(ch, ns_from, ns_to); |
07a6dd2c | 804 | else if(s_chan[ch].bFMod==0 && iUseInterpolation==1) |
650adfd2 | 805 | do_samples_simple(ch, ns_from, ns_to); |
07a6dd2c | 806 | else |
650adfd2 | 807 | do_samples_default(ch, ns_from, ns_to); |
808 | ||
e391d21c | 809 | ns_len = ns_to - ns_from; |
ef79bbde | 810 | |
1ab7621a | 811 | MixADSR(ch, ns_from, ns_to); |
812 | ||
b72f17a1 | 813 | if(ch==1 || ch==3) |
814 | { | |
e391d21c | 815 | do_decode_bufs(ch/2, ns_from, ns_len); |
b72f17a1 | 816 | decode_dirty_ch |= 1<<ch; |
817 | } | |
818 | ||
1ab7621a | 819 | if(s_chan[ch].bFMod==2) // fmod freq channel |
e391d21c | 820 | memcpy(&iFMod[ns_from], &ChanBuf[ns_from], ns_len * sizeof(iFMod[0])); |
821 | if(s_chan[ch].bRVBActive) | |
822 | mix_chan_rvb(ns_from, ns_len, s_chan[ch].iLeftVolume, s_chan[ch].iRightVolume); | |
1775933a | 823 | else |
e391d21c | 824 | mix_chan(ns_from, ns_len, s_chan[ch].iLeftVolume, s_chan[ch].iRightVolume); |
ef79bbde P |
825 | } |
826 | } | |
827 | ||
78c60846 | 828 | // advance "stopped" channels that can cause irqs |
829 | // (all chans are always playing on the real thing..) | |
f2aec10a | 830 | if(spuCtrl&CTRL_IRQ) |
78c60846 | 831 | for(ch=0;ch<MAXCHAN;ch++) |
832 | { | |
174c454a | 833 | if(!(silentch&(1<<ch))) continue; // already handled |
834 | if(dwChannelDead&(1<<ch)) continue; | |
78c60846 | 835 | if(s_chan[ch].pCurr > pSpuIrq && s_chan[ch].pLoop > pSpuIrq) |
836 | continue; | |
837 | ||
f2aec10a | 838 | s_chan[ch].spos += s_chan[ch].sinc * (ns_to - ns_from); |
78c60846 | 839 | while(s_chan[ch].spos >= 28 * 0x10000) |
840 | { | |
7e44d49d | 841 | unsigned char *start = s_chan[ch].pCurr; |
78c60846 | 842 | |
fb552464 | 843 | skip_block(ch); |
f9fe4923 | 844 | if(start == s_chan[ch].pCurr || start - spuMemC < 0x1000) |
78c60846 | 845 | { |
f9fe4923 | 846 | // looping on self or stopped(?) |
7e44d49d | 847 | dwChannelDead |= 1<<ch; |
848 | s_chan[ch].spos = 0; | |
78c60846 | 849 | break; |
850 | } | |
851 | ||
78c60846 | 852 | s_chan[ch].spos -= 28 * 0x10000; |
853 | } | |
854 | } | |
855 | ||
b72f17a1 | 856 | if(unlikely(silentch & decode_dirty_ch & (1<<1))) // must clear silent channel decode buffers |
857 | { | |
858 | memset(&spuMem[0x800/2], 0, 0x400); | |
859 | decode_dirty_ch &= ~(1<<1); | |
860 | } | |
861 | if(unlikely(silentch & decode_dirty_ch & (1<<3))) | |
862 | { | |
863 | memset(&spuMem[0xc00/2], 0, 0x400); | |
864 | decode_dirty_ch &= ~(1<<3); | |
865 | } | |
8680e822 | 866 | |
ef79bbde P |
867 | //---------------------------------------------------// |
868 | //- here we have another 1 ms of sound data | |
869 | //---------------------------------------------------// | |
870 | // mix XA infos (if any) | |
871 | ||
650adfd2 | 872 | MixXA(ns_to); |
ef79bbde P |
873 | |
874 | /////////////////////////////////////////////////////// | |
875 | // mix all channels (including reverb) into one buffer | |
876 | ||
1775933a | 877 | if(iUseReverb) |
650adfd2 | 878 | REVERBDo(ns_to); |
1775933a | 879 | |
880 | if((spuCtrl&0x4000)==0) // muted? (rare, don't optimize for this) | |
881 | { | |
650adfd2 | 882 | memset(pS, 0, ns_to * 2 * sizeof(pS[0])); |
883 | pS += ns_to * 2; | |
1775933a | 884 | } |
885 | else | |
650adfd2 | 886 | for (ns = 0; ns < ns_to * 2; ) |
ef79bbde | 887 | { |
9e7a7352 | 888 | d = SSumLR[ns]; SSumLR[ns] = 0; |
889 | d = d * volmult >> 10; | |
1775933a | 890 | ssat32_to_16(d); |
ef79bbde | 891 | *pS++ = d; |
97ea4077 | 892 | ns++; |
ef79bbde | 893 | |
9e7a7352 | 894 | d = SSumLR[ns]; SSumLR[ns] = 0; |
895 | d = d * volmult >> 10; | |
1775933a | 896 | ssat32_to_16(d); |
ef79bbde | 897 | *pS++ = d; |
97ea4077 | 898 | ns++; |
ef79bbde P |
899 | } |
900 | ||
650adfd2 | 901 | cycles_played += ns_to * 768; |
16187bfb | 902 | |
650adfd2 | 903 | decode_pos = (decode_pos + ns_to) & 0x1ff; |
904 | } | |
905 | } | |
ef79bbde | 906 | |
650adfd2 | 907 | void schedule_next_irq(void) |
908 | { | |
909 | unsigned int upd_samples; | |
910 | int ch; | |
ef79bbde | 911 | |
650adfd2 | 912 | if (scheduleCallback == NULL) |
913 | return; | |
e34a4bd3 | 914 | |
650adfd2 | 915 | upd_samples = 44100 / 50; |
e34a4bd3 | 916 | |
650adfd2 | 917 | for (ch = 0; ch < MAXCHAN; ch++) |
918 | { | |
919 | if (dwChannelDead & (1 << ch)) | |
920 | continue; | |
921 | if ((unsigned long)(pSpuIrq - s_chan[ch].pCurr) > IRQ_NEAR_BLOCKS * 16 | |
922 | && (unsigned long)(pSpuIrq - s_chan[ch].pLoop) > IRQ_NEAR_BLOCKS * 16) | |
923 | continue; | |
16187bfb | 924 | |
650adfd2 | 925 | scan_for_irq(ch, &upd_samples); |
ef79bbde P |
926 | } |
927 | ||
650adfd2 | 928 | if (unlikely(pSpuIrq < spuMemC + 0x1000)) |
929 | { | |
930 | int irq_pos = (pSpuIrq - spuMemC) / 2 & 0x1ff; | |
931 | int left = (irq_pos - decode_pos) & 0x1ff; | |
932 | if (0 < left && left < upd_samples) { | |
933 | //xprintf("decode: %3d (%3d/%3d)\n", left, decode_pos, irq_pos); | |
934 | upd_samples = left; | |
935 | } | |
936 | } | |
16187bfb | 937 | |
650adfd2 | 938 | if (upd_samples < 44100 / 50) |
939 | scheduleCallback(upd_samples * 768); | |
ef79bbde P |
940 | } |
941 | ||
942 | // SPU ASYNC... even newer epsxe func | |
943 | // 1 time every 'cycle' cycles... harhar | |
944 | ||
650adfd2 | 945 | // rearmed: called dynamically now |
554a2220 | 946 | |
650adfd2 | 947 | void CALLBACK SPUasync(unsigned int cycle, unsigned int flags) |
ef79bbde | 948 | { |
650adfd2 | 949 | do_samples(cycle); |
fb552464 | 950 | |
650adfd2 | 951 | if (spuCtrl & CTRL_IRQ) |
952 | schedule_next_irq(); | |
f8edb5bc | 953 | |
650adfd2 | 954 | if (flags & 1) { |
955 | out_current->feed(pSpuBuffer, (unsigned char *)pS - pSpuBuffer); | |
956 | pS = (short *)pSpuBuffer; | |
fb552464 | 957 | |
650adfd2 | 958 | if (0) { |
959 | if (!out_current->busy()) | |
960 | // cause more samples to be generated | |
961 | // (and break some games because of bad sync) | |
962 | cycles_played -= 44100 / 60 / 2 * 768; | |
ef79bbde | 963 | } |
650adfd2 | 964 | } |
ef79bbde P |
965 | } |
966 | ||
967 | // SPU UPDATE... new epsxe func | |
968 | // 1 time every 32 hsync lines | |
969 | // (312/32)x50 in pal | |
970 | // (262/32)x60 in ntsc | |
971 | ||
972 | // since epsxe 1.5.2 (linux) uses SPUupdate, not SPUasync, I will | |
973 | // leave that func in the linux port, until epsxe linux is using | |
974 | // the async function as well | |
975 | ||
976 | void CALLBACK SPUupdate(void) | |
977 | { | |
ef79bbde P |
978 | } |
979 | ||
980 | // XA AUDIO | |
981 | ||
982 | void CALLBACK SPUplayADPCMchannel(xa_decode_t *xap) | |
983 | { | |
984 | if(!xap) return; | |
985 | if(!xap->freq) return; // no xa freq ? bye | |
986 | ||
987 | FeedXA(xap); // call main XA feeder | |
988 | } | |
989 | ||
990 | // CDDA AUDIO | |
983a7cfd | 991 | int CALLBACK SPUplayCDDAchannel(short *pcm, int nbytes) |
ef79bbde | 992 | { |
983a7cfd | 993 | if (!pcm) return -1; |
994 | if (nbytes<=0) return -1; | |
ef79bbde | 995 | |
983a7cfd | 996 | return FeedCDDA((unsigned char *)pcm, nbytes); |
ef79bbde P |
997 | } |
998 | ||
6d75977b | 999 | // to be called after state load |
1000 | void ClearWorkingState(void) | |
ef79bbde | 1001 | { |
97ea4077 | 1002 | memset(SSumLR,0,sizeof(SSumLR)); // init some mixing buffers |
6d75977b | 1003 | memset(iFMod,0,sizeof(iFMod)); |
ef79bbde | 1004 | pS=(short *)pSpuBuffer; // setup soundbuffer pointer |
ef79bbde P |
1005 | } |
1006 | ||
1007 | // SETUPSTREAMS: init most of the spu buffers | |
1008 | void SetupStreams(void) | |
1009 | { | |
1010 | int i; | |
1011 | ||
1012 | pSpuBuffer=(unsigned char *)malloc(32768); // alloc mixing buffer | |
1013 | ||
1014 | if(iUseReverb==1) i=88200*2; | |
1015 | else i=NSSIZE*2; | |
1016 | ||
1017 | sRVBStart = (int *)malloc(i*4); // alloc reverb buffer | |
1018 | memset(sRVBStart,0,i*4); | |
1019 | sRVBEnd = sRVBStart + i; | |
1020 | sRVBPlay = sRVBStart; | |
1021 | ||
1022 | XAStart = // alloc xa buffer | |
1023 | (uint32_t *)malloc(44100 * sizeof(uint32_t)); | |
1024 | XAEnd = XAStart + 44100; | |
1025 | XAPlay = XAStart; | |
1026 | XAFeed = XAStart; | |
1027 | ||
1028 | CDDAStart = // alloc cdda buffer | |
983a7cfd | 1029 | (uint32_t *)malloc(CDDA_BUFFER_SIZE); |
ef79bbde P |
1030 | CDDAEnd = CDDAStart + 16384; |
1031 | CDDAPlay = CDDAStart; | |
b8e744ce | 1032 | CDDAFeed = CDDAStart; |
ef79bbde P |
1033 | |
1034 | for(i=0;i<MAXCHAN;i++) // loop sound channels | |
1035 | { | |
1036 | // we don't use mutex sync... not needed, would only | |
1037 | // slow us down: | |
1038 | // s_chan[i].hMutex=CreateMutex(NULL,FALSE,NULL); | |
6d866bb7 | 1039 | s_chan[i].ADSRX.SustainLevel = 0xf; // -> init sustain |
650adfd2 | 1040 | s_chan[i].ADSRX.SustainIncrease = 1; |
ef79bbde | 1041 | s_chan[i].pLoop=spuMemC; |
ef79bbde P |
1042 | s_chan[i].pCurr=spuMemC; |
1043 | } | |
1044 | ||
6d75977b | 1045 | ClearWorkingState(); |
1046 | ||
1047 | bSpuInit=1; // flag: we are inited | |
ef79bbde P |
1048 | } |
1049 | ||
1050 | // REMOVESTREAMS: free most buffer | |
1051 | void RemoveStreams(void) | |
1052 | { | |
1053 | free(pSpuBuffer); // free mixing buffer | |
1054 | pSpuBuffer = NULL; | |
1055 | free(sRVBStart); // free reverb buffer | |
1056 | sRVBStart = NULL; | |
1057 | free(XAStart); // free XA buffer | |
1058 | XAStart = NULL; | |
1059 | free(CDDAStart); // free CDDA buffer | |
1060 | CDDAStart = NULL; | |
1061 | } | |
1062 | ||
1063 | // INIT/EXIT STUFF | |
1064 | ||
1065 | // SPUINIT: this func will be called first by the main emu | |
1066 | long CALLBACK SPUinit(void) | |
1067 | { | |
1068 | spuMemC = (unsigned char *)spuMem; // just small setup | |
1069 | memset((void *)&rvb, 0, sizeof(REVERBInfo)); | |
1070 | InitADSR(); | |
1071 | ||
ef79bbde P |
1072 | spuIrq = 0; |
1073 | spuAddr = 0xffffffff; | |
ef79bbde | 1074 | spuMemC = (unsigned char *)spuMem; |
b72f17a1 | 1075 | decode_pos = 0; |
ef79bbde P |
1076 | memset((void *)s_chan, 0, (MAXCHAN + 1) * sizeof(SPUCHAN)); |
1077 | pSpuIrq = 0; | |
ef79bbde | 1078 | |
ef79bbde P |
1079 | SetupStreams(); // prepare streaming |
1080 | ||
1081 | return 0; | |
1082 | } | |
1083 | ||
1084 | // SPUOPEN: called by main emu after init | |
1085 | long CALLBACK SPUopen(void) | |
1086 | { | |
1087 | if (bSPUIsOpen) return 0; // security for some stupid main emus | |
1088 | ||
1089 | SetupSound(); // setup sound (before init!) | |
ef79bbde P |
1090 | |
1091 | bSPUIsOpen = 1; | |
1092 | ||
1093 | return PSE_SPU_ERR_SUCCESS; | |
1094 | } | |
1095 | ||
1096 | // SPUCLOSE: called before shutdown | |
1097 | long CALLBACK SPUclose(void) | |
1098 | { | |
1099 | if (!bSPUIsOpen) return 0; // some security | |
1100 | ||
1101 | bSPUIsOpen = 0; // no more open | |
1102 | ||
07c13dfd | 1103 | out_current->finish(); // no more sound handling |
ef79bbde P |
1104 | |
1105 | return 0; | |
1106 | } | |
1107 | ||
1108 | // SPUSHUTDOWN: called by main emu on final exit | |
1109 | long CALLBACK SPUshutdown(void) | |
1110 | { | |
1111 | SPUclose(); | |
1112 | RemoveStreams(); // no more streaming | |
6d75977b | 1113 | bSpuInit=0; |
ef79bbde P |
1114 | |
1115 | return 0; | |
1116 | } | |
1117 | ||
1118 | // SPUTEST: we don't test, we are always fine ;) | |
1119 | long CALLBACK SPUtest(void) | |
1120 | { | |
1121 | return 0; | |
1122 | } | |
1123 | ||
1124 | // SPUCONFIGURE: call config dialog | |
1125 | long CALLBACK SPUconfigure(void) | |
1126 | { | |
1127 | #ifdef _MACOSX | |
1128 | DoConfiguration(); | |
1129 | #else | |
ee849648 | 1130 | // StartCfgTool("CFG"); |
ef79bbde P |
1131 | #endif |
1132 | return 0; | |
1133 | } | |
1134 | ||
1135 | // SPUABOUT: show about window | |
1136 | void CALLBACK SPUabout(void) | |
1137 | { | |
1138 | #ifdef _MACOSX | |
1139 | DoAbout(); | |
1140 | #else | |
ee849648 | 1141 | // StartCfgTool("ABOUT"); |
ef79bbde P |
1142 | #endif |
1143 | } | |
1144 | ||
1145 | // SETUP CALLBACKS | |
1146 | // this functions will be called once, | |
1147 | // passes a callback that should be called on SPU-IRQ/cdda volume change | |
1148 | void CALLBACK SPUregisterCallback(void (CALLBACK *callback)(void)) | |
1149 | { | |
1150 | irqCallback = callback; | |
1151 | } | |
1152 | ||
1153 | void CALLBACK SPUregisterCDDAVolume(void (CALLBACK *CDDAVcallback)(unsigned short,unsigned short)) | |
1154 | { | |
1155 | cddavCallback = CDDAVcallback; | |
1156 | } | |
1157 | ||
2b30c129 | 1158 | void CALLBACK SPUregisterScheduleCb(void (CALLBACK *callback)(unsigned int)) |
1159 | { | |
650adfd2 | 1160 | scheduleCallback = callback; |
2b30c129 | 1161 | } |
1162 | ||
ef79bbde | 1163 | // COMMON PLUGIN INFO FUNCS |
e906c010 | 1164 | /* |
ef79bbde P |
1165 | char * CALLBACK PSEgetLibName(void) |
1166 | { | |
1167 | return _(libraryName); | |
1168 | } | |
1169 | ||
1170 | unsigned long CALLBACK PSEgetLibType(void) | |
1171 | { | |
1172 | return PSE_LT_SPU; | |
1173 | } | |
1174 | ||
1175 | unsigned long CALLBACK PSEgetLibVersion(void) | |
1176 | { | |
1177 | return (1 << 16) | (6 << 8); | |
1178 | } | |
1179 | ||
1180 | char * SPUgetLibInfos(void) | |
1181 | { | |
1182 | return _(libraryInfo); | |
1183 | } | |
e906c010 | 1184 | */ |
6d866bb7 | 1185 | |
90f1d26c | 1186 | // debug |
174c454a | 1187 | void spu_get_debug_info(int *chans_out, int *run_chans, int *fmod_chans_out, int *noise_chans_out) |
90f1d26c | 1188 | { |
174c454a | 1189 | int ch = 0, fmod_chans = 0, noise_chans = 0, irq_chans = 0; |
90f1d26c | 1190 | |
1191 | for(;ch<MAXCHAN;ch++) | |
1192 | { | |
1193 | if (!(dwChannelOn & (1<<ch))) | |
1194 | continue; | |
1195 | if (s_chan[ch].bFMod == 2) | |
1196 | fmod_chans |= 1 << ch; | |
1197 | if (s_chan[ch].bNoise) | |
1198 | noise_chans |= 1 << ch; | |
174c454a | 1199 | if((spuCtrl&CTRL_IRQ) && s_chan[ch].pCurr <= pSpuIrq && s_chan[ch].pLoop <= pSpuIrq) |
1200 | irq_chans |= 1 << ch; | |
90f1d26c | 1201 | } |
1202 | ||
1203 | *chans_out = dwChannelOn; | |
174c454a | 1204 | *run_chans = ~dwChannelOn & ~dwChannelDead & irq_chans; |
90f1d26c | 1205 | *fmod_chans_out = fmod_chans; |
1206 | *noise_chans_out = noise_chans; | |
1207 | } | |
1208 | ||
6d866bb7 | 1209 | // vim:shiftwidth=1:expandtab |