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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" |
3154bfab | 29 | #include "spu_config.h" |
ef79bbde P |
30 | |
31 | #ifdef ENABLE_NLS | |
32 | #include <libintl.h> | |
33 | #include <locale.h> | |
34 | #define _(x) gettext(x) | |
35 | #define N_(x) (x) | |
36 | #else | |
37 | #define _(x) (x) | |
38 | #define N_(x) (x) | |
39 | #endif | |
40 | ||
a80ae4a0 | 41 | #ifdef __ARM_ARCH_7A__ |
1775933a | 42 | #define ssat32_to_16(v) \ |
43 | asm("ssat %0,#16,%1" : "=r" (v) : "r" (v)) | |
44 | #else | |
45 | #define ssat32_to_16(v) do { \ | |
46 | if (v < -32768) v = -32768; \ | |
47 | else if (v > 32767) v = 32767; \ | |
48 | } while (0) | |
49 | #endif | |
50 | ||
fb552464 | 51 | #define PSXCLK 33868800 /* 33.8688 MHz */ |
52 | ||
650adfd2 | 53 | // intended to be ~1 frame |
54 | #define IRQ_NEAR_BLOCKS 32 | |
55 | ||
6d866bb7 | 56 | /* |
ef79bbde P |
57 | #if defined (USEMACOSX) |
58 | static char * libraryName = N_("Mac OS X Sound"); | |
59 | #elif defined (USEALSA) | |
60 | static char * libraryName = N_("ALSA Sound"); | |
61 | #elif defined (USEOSS) | |
62 | static char * libraryName = N_("OSS Sound"); | |
63 | #elif defined (USESDL) | |
64 | static char * libraryName = N_("SDL Sound"); | |
65 | #elif defined (USEPULSEAUDIO) | |
66 | static char * libraryName = N_("PulseAudio Sound"); | |
67 | #else | |
68 | static char * libraryName = N_("NULL Sound"); | |
69 | #endif | |
70 | ||
71 | 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 | 72 | */ |
ef79bbde P |
73 | |
74 | // globals | |
75 | ||
3154bfab | 76 | SPUInfo spu; |
77 | SPUConfig spu_config; | |
ef79bbde P |
78 | |
79 | // MAIN infos struct for each channel | |
80 | ||
81 | SPUCHAN s_chan[MAXCHAN+1]; // channel + 1 infos (1 is security for fmod handling) | |
82 | REVERBInfo rvb; | |
83 | ||
ef79bbde P |
84 | // certain globals (were local before, but with the new timeproc I need em global) |
85 | ||
6d866bb7 | 86 | static const int f[8][2] = { { 0, 0 }, |
ef79bbde P |
87 | { 60, 0 }, |
88 | { 115, -52 }, | |
89 | { 98, -55 }, | |
90 | { 122, -60 } }; | |
3154bfab | 91 | int ChanBuf[NSSIZE]; |
92 | int SSumLR[NSSIZE*2]; | |
ef79bbde | 93 | int iFMod[NSSIZE]; |
ef79bbde | 94 | |
983a7cfd | 95 | #define CDDA_BUFFER_SIZE (16384 * sizeof(uint32_t)) // must be power of 2 |
96 | ||
ef79bbde P |
97 | //////////////////////////////////////////////////////////////////////// |
98 | // CODE AREA | |
99 | //////////////////////////////////////////////////////////////////////// | |
100 | ||
101 | // dirty inline func includes | |
102 | ||
103 | #include "reverb.c" | |
104 | #include "adsr.c" | |
105 | ||
106 | //////////////////////////////////////////////////////////////////////// | |
107 | // helpers for simple interpolation | |
108 | ||
109 | // | |
110 | // easy interpolation on upsampling, no special filter, just "Pete's common sense" tm | |
111 | // | |
112 | // instead of having n equal sample values in a row like: | |
113 | // ____ | |
114 | // |____ | |
115 | // | |
116 | // we compare the current delta change with the next delta change. | |
117 | // | |
118 | // if curr_delta is positive, | |
119 | // | |
120 | // - and next delta is smaller (or changing direction): | |
121 | // \. | |
122 | // -__ | |
123 | // | |
124 | // - and next delta significant (at least twice) bigger: | |
125 | // --_ | |
126 | // \. | |
127 | // | |
128 | // - and next delta is nearly same: | |
129 | // \. | |
130 | // \. | |
131 | // | |
132 | // | |
133 | // if curr_delta is negative, | |
134 | // | |
135 | // - and next delta is smaller (or changing direction): | |
136 | // _-- | |
137 | // / | |
138 | // | |
139 | // - and next delta significant (at least twice) bigger: | |
140 | // / | |
141 | // __- | |
142 | // | |
143 | // - and next delta is nearly same: | |
144 | // / | |
145 | // / | |
146 | // | |
147 | ||
148 | ||
149 | INLINE void InterpolateUp(int ch) | |
150 | { | |
151 | if(s_chan[ch].SB[32]==1) // flag == 1? calc step and set flag... and don't change the value in this pass | |
152 | { | |
153 | const int id1=s_chan[ch].SB[30]-s_chan[ch].SB[29]; // curr delta to next val | |
154 | const int id2=s_chan[ch].SB[31]-s_chan[ch].SB[30]; // and next delta to next-next val :) | |
155 | ||
156 | s_chan[ch].SB[32]=0; | |
157 | ||
158 | if(id1>0) // curr delta positive | |
159 | { | |
160 | if(id2<id1) | |
161 | {s_chan[ch].SB[28]=id1;s_chan[ch].SB[32]=2;} | |
162 | else | |
163 | if(id2<(id1<<1)) | |
164 | s_chan[ch].SB[28]=(id1*s_chan[ch].sinc)/0x10000L; | |
165 | else | |
166 | s_chan[ch].SB[28]=(id1*s_chan[ch].sinc)/0x20000L; | |
167 | } | |
168 | else // curr delta negative | |
169 | { | |
170 | if(id2>id1) | |
171 | {s_chan[ch].SB[28]=id1;s_chan[ch].SB[32]=2;} | |
172 | else | |
173 | if(id2>(id1<<1)) | |
174 | s_chan[ch].SB[28]=(id1*s_chan[ch].sinc)/0x10000L; | |
175 | else | |
176 | s_chan[ch].SB[28]=(id1*s_chan[ch].sinc)/0x20000L; | |
177 | } | |
178 | } | |
179 | else | |
180 | if(s_chan[ch].SB[32]==2) // flag 1: calc step and set flag... and don't change the value in this pass | |
181 | { | |
182 | s_chan[ch].SB[32]=0; | |
183 | ||
184 | s_chan[ch].SB[28]=(s_chan[ch].SB[28]*s_chan[ch].sinc)/0x20000L; | |
76d1d09c | 185 | //if(s_chan[ch].sinc<=0x8000) |
186 | // s_chan[ch].SB[29]=s_chan[ch].SB[30]-(s_chan[ch].SB[28]*((0x10000/s_chan[ch].sinc)-1)); | |
187 | //else | |
188 | s_chan[ch].SB[29]+=s_chan[ch].SB[28]; | |
ef79bbde P |
189 | } |
190 | else // no flags? add bigger val (if possible), calc smaller step, set flag1 | |
191 | s_chan[ch].SB[29]+=s_chan[ch].SB[28]; | |
192 | } | |
193 | ||
194 | // | |
195 | // even easier interpolation on downsampling, also no special filter, again just "Pete's common sense" tm | |
196 | // | |
197 | ||
198 | INLINE void InterpolateDown(int ch) | |
199 | { | |
200 | if(s_chan[ch].sinc>=0x20000L) // we would skip at least one val? | |
201 | { | |
202 | s_chan[ch].SB[29]+=(s_chan[ch].SB[30]-s_chan[ch].SB[29])/2; // add easy weight | |
203 | if(s_chan[ch].sinc>=0x30000L) // we would skip even more vals? | |
204 | s_chan[ch].SB[29]+=(s_chan[ch].SB[31]-s_chan[ch].SB[30])/2;// add additional next weight | |
205 | } | |
206 | } | |
207 | ||
208 | //////////////////////////////////////////////////////////////////////// | |
209 | // helpers for gauss interpolation | |
210 | ||
3154bfab | 211 | #define gval0 (((short*)(&s_chan[ch].SB[29]))[gpos&3]) |
f05d6ca2 | 212 | #define gval(x) ((int)((short*)(&s_chan[ch].SB[29]))[(gpos+x)&3]) |
ef79bbde P |
213 | |
214 | #include "gauss_i.h" | |
215 | ||
216 | //////////////////////////////////////////////////////////////////////// | |
217 | ||
218 | #include "xa.c" | |
219 | ||
e4f075af | 220 | static void do_irq(void) |
221 | { | |
3154bfab | 222 | //if(!(spu.spuStat & STAT_IRQ)) |
e4f075af | 223 | { |
3154bfab | 224 | spu.spuStat |= STAT_IRQ; // asserted status? |
225 | if(spu.irqCallback) spu.irqCallback(); | |
e4f075af | 226 | } |
227 | } | |
228 | ||
229 | static int check_irq(int ch, unsigned char *pos) | |
230 | { | |
3154bfab | 231 | if((spu.spuCtrl & CTRL_IRQ) && pos == spu.pSpuIrq) |
e4f075af | 232 | { |
3154bfab | 233 | //printf("ch%d irq %04x\n", ch, pos - spu.spuMemC); |
e4f075af | 234 | do_irq(); |
235 | return 1; | |
236 | } | |
237 | return 0; | |
238 | } | |
239 | ||
ef79bbde P |
240 | //////////////////////////////////////////////////////////////////////// |
241 | // START SOUND... called by main thread to setup a new sound on a channel | |
242 | //////////////////////////////////////////////////////////////////////// | |
243 | ||
244 | INLINE void StartSound(int ch) | |
245 | { | |
246 | StartADSR(ch); | |
247 | StartREVERB(ch); | |
248 | ||
b00afb77 | 249 | // fussy timing issues - do in VoiceOn |
250 | //s_chan[ch].pCurr=s_chan[ch].pStart; // set sample start | |
251 | //s_chan[ch].bStop=0; | |
252 | //s_chan[ch].bOn=1; | |
ef79bbde | 253 | |
381ea103 | 254 | s_chan[ch].SB[26]=0; // init mixing vars |
255 | s_chan[ch].SB[27]=0; | |
ef79bbde P |
256 | s_chan[ch].iSBPos=28; |
257 | ||
ef79bbde P |
258 | s_chan[ch].SB[29]=0; // init our interpolation helpers |
259 | s_chan[ch].SB[30]=0; | |
260 | ||
3154bfab | 261 | if(spu_config.iUseInterpolation>=2) // gauss interpolation? |
ef79bbde P |
262 | {s_chan[ch].spos=0x30000L;s_chan[ch].SB[28]=0;} // -> start with more decoding |
263 | else {s_chan[ch].spos=0x10000L;s_chan[ch].SB[31]=0;} // -> no/simple interpolation starts with one 44100 decoding | |
264 | ||
3154bfab | 265 | spu.dwNewChannel&=~(1<<ch); // clear new channel bit |
ef79bbde P |
266 | } |
267 | ||
268 | //////////////////////////////////////////////////////////////////////// | |
269 | // ALL KIND OF HELPERS | |
270 | //////////////////////////////////////////////////////////////////////// | |
271 | ||
07a6dd2c | 272 | INLINE int FModChangeFrequency(int ch,int ns) |
ef79bbde | 273 | { |
7e44d49d | 274 | unsigned int NP=s_chan[ch].iRawPitch; |
07a6dd2c | 275 | int sinc; |
ef79bbde P |
276 | |
277 | NP=((32768L+iFMod[ns])*NP)/32768L; | |
278 | ||
279 | if(NP>0x3fff) NP=0x3fff; | |
280 | if(NP<0x1) NP=0x1; | |
281 | ||
7e44d49d | 282 | sinc=NP<<4; // calc frequency |
3154bfab | 283 | if(spu_config.iUseInterpolation==1) // freq change in simple interpolation mode |
07a6dd2c | 284 | s_chan[ch].SB[32]=1; |
ef79bbde | 285 | iFMod[ns]=0; |
07a6dd2c | 286 | |
287 | return sinc; | |
ef79bbde P |
288 | } |
289 | ||
290 | //////////////////////////////////////////////////////////////////////// | |
291 | ||
ef79bbde P |
292 | INLINE void StoreInterpolationVal(int ch,int fa) |
293 | { | |
294 | if(s_chan[ch].bFMod==2) // fmod freq channel | |
295 | s_chan[ch].SB[29]=fa; | |
296 | else | |
297 | { | |
381ea103 | 298 | ssat32_to_16(fa); |
ef79bbde | 299 | |
3154bfab | 300 | if(spu_config.iUseInterpolation>=2) // gauss/cubic interpolation |
ef79bbde P |
301 | { |
302 | int gpos = s_chan[ch].SB[28]; | |
303 | gval0 = fa; | |
304 | gpos = (gpos+1) & 3; | |
305 | s_chan[ch].SB[28] = gpos; | |
306 | } | |
307 | else | |
3154bfab | 308 | if(spu_config.iUseInterpolation==1) // simple interpolation |
ef79bbde P |
309 | { |
310 | s_chan[ch].SB[28] = 0; | |
311 | 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' | |
312 | s_chan[ch].SB[30] = s_chan[ch].SB[31]; | |
313 | s_chan[ch].SB[31] = fa; | |
314 | s_chan[ch].SB[32] = 1; // -> flag: calc new interolation | |
315 | } | |
316 | else s_chan[ch].SB[29]=fa; // no interpolation | |
317 | } | |
318 | } | |
319 | ||
320 | //////////////////////////////////////////////////////////////////////// | |
321 | ||
8cd23d6d | 322 | INLINE int iGetInterpolationVal(int ch, int spos) |
ef79bbde P |
323 | { |
324 | int fa; | |
325 | ||
326 | if(s_chan[ch].bFMod==2) return s_chan[ch].SB[29]; | |
327 | ||
3154bfab | 328 | switch(spu_config.iUseInterpolation) |
ef79bbde P |
329 | { |
330 | //--------------------------------------------------// | |
331 | case 3: // cubic interpolation | |
332 | { | |
333 | long xd;int gpos; | |
8cd23d6d | 334 | xd = (spos >> 1)+1; |
ef79bbde P |
335 | gpos = s_chan[ch].SB[28]; |
336 | ||
337 | fa = gval(3) - 3*gval(2) + 3*gval(1) - gval0; | |
338 | fa *= (xd - (2<<15)) / 6; | |
339 | fa >>= 15; | |
340 | fa += gval(2) - gval(1) - gval(1) + gval0; | |
341 | fa *= (xd - (1<<15)) >> 1; | |
342 | fa >>= 15; | |
343 | fa += gval(1) - gval0; | |
344 | fa *= xd; | |
345 | fa >>= 15; | |
346 | fa = fa + gval0; | |
347 | ||
348 | } break; | |
349 | //--------------------------------------------------// | |
350 | case 2: // gauss interpolation | |
351 | { | |
352 | int vl, vr;int gpos; | |
8cd23d6d | 353 | vl = (spos >> 6) & ~3; |
ef79bbde | 354 | gpos = s_chan[ch].SB[28]; |
f05d6ca2 | 355 | vr=(gauss[vl]*(int)gval0)&~2047; |
ef79bbde P |
356 | vr+=(gauss[vl+1]*gval(1))&~2047; |
357 | vr+=(gauss[vl+2]*gval(2))&~2047; | |
358 | vr+=(gauss[vl+3]*gval(3))&~2047; | |
359 | fa = vr>>11; | |
360 | } break; | |
361 | //--------------------------------------------------// | |
362 | case 1: // simple interpolation | |
363 | { | |
364 | if(s_chan[ch].sinc<0x10000L) // -> upsampling? | |
365 | InterpolateUp(ch); // --> interpolate up | |
366 | else InterpolateDown(ch); // --> else down | |
367 | fa=s_chan[ch].SB[29]; | |
368 | } break; | |
369 | //--------------------------------------------------// | |
370 | default: // no interpolation | |
371 | { | |
372 | fa=s_chan[ch].SB[29]; | |
373 | } break; | |
374 | //--------------------------------------------------// | |
375 | } | |
376 | ||
377 | return fa; | |
378 | } | |
379 | ||
381ea103 | 380 | static void decode_block_data(int *dest, const unsigned char *src, int predict_nr, int shift_factor) |
381 | { | |
382 | int nSample; | |
383 | int fa, s_1, s_2, d, s; | |
384 | ||
385 | s_1 = dest[27]; | |
386 | s_2 = dest[26]; | |
387 | ||
388 | for (nSample = 0; nSample < 28; src++) | |
389 | { | |
390 | d = (int)*src; | |
391 | s = (int)(signed short)((d & 0x0f) << 12); | |
392 | ||
393 | fa = s >> shift_factor; | |
394 | fa += ((s_1 * f[predict_nr][0])>>6) + ((s_2 * f[predict_nr][1])>>6); | |
395 | s_2=s_1;s_1=fa; | |
396 | ||
397 | dest[nSample++] = fa; | |
398 | ||
399 | s = (int)(signed short)((d & 0xf0) << 8); | |
400 | fa = s >> shift_factor; | |
401 | fa += ((s_1 * f[predict_nr][0])>>6) + ((s_2 * f[predict_nr][1])>>6); | |
402 | s_2=s_1;s_1=fa; | |
403 | ||
404 | dest[nSample++] = fa; | |
405 | } | |
406 | } | |
407 | ||
e11ae5c5 | 408 | static int decode_block(int ch) |
409 | { | |
410 | unsigned char *start; | |
381ea103 | 411 | int predict_nr,shift_factor,flags; |
f9fe4923 | 412 | int stop = 0; |
e11ae5c5 | 413 | int ret = 0; |
414 | ||
f9fe4923 | 415 | start = s_chan[ch].pCurr; // set up the current pos |
3154bfab | 416 | if(start == spu.spuMemC) // ? |
f9fe4923 | 417 | stop = 1; |
e11ae5c5 | 418 | |
e4f075af | 419 | if(s_chan[ch].prevflags&1) // 1: stop/loop |
3fc2a4c2 | 420 | { |
e4f075af | 421 | if(!(s_chan[ch].prevflags&2)) |
f9fe4923 | 422 | stop = 1; |
e4f075af | 423 | |
424 | start = s_chan[ch].pLoop; | |
3fc2a4c2 | 425 | } |
89cb2058 | 426 | else |
427 | ret = check_irq(ch, start); // hack, see check_irq below.. | |
e11ae5c5 | 428 | |
f9fe4923 | 429 | if(stop) |
430 | { | |
3154bfab | 431 | spu.dwChannelOn &= ~(1<<ch); // -> turn everything off |
f9fe4923 | 432 | s_chan[ch].bStop = 1; |
433 | s_chan[ch].ADSRX.EnvelopeVol = 0; | |
434 | } | |
435 | ||
381ea103 | 436 | predict_nr=(int)start[0]; |
e11ae5c5 | 437 | shift_factor=predict_nr&0xf; |
438 | predict_nr >>= 4; | |
e11ae5c5 | 439 | |
381ea103 | 440 | decode_block_data(s_chan[ch].SB, start + 2, predict_nr, shift_factor); |
e11ae5c5 | 441 | |
381ea103 | 442 | flags=(int)start[1]; |
443 | if(flags&4) | |
444 | s_chan[ch].pLoop=start; // loop adress | |
e11ae5c5 | 445 | |
381ea103 | 446 | start+=16; |
3fc2a4c2 | 447 | |
89cb2058 | 448 | if(flags&1) { // 1: stop/loop |
3fc2a4c2 | 449 | start = s_chan[ch].pLoop; |
89cb2058 | 450 | ret |= check_irq(ch, start); // hack.. :( |
451 | } | |
e11ae5c5 | 452 | |
3154bfab | 453 | if (start - spu.spuMemC >= 0x80000) |
454 | start = spu.spuMemC; | |
e4f075af | 455 | |
381ea103 | 456 | s_chan[ch].pCurr = start; // store values for next cycle |
e4f075af | 457 | s_chan[ch].prevflags = flags; |
e11ae5c5 | 458 | |
459 | return ret; | |
460 | } | |
461 | ||
07a6dd2c | 462 | // do block, but ignore sample data |
463 | static int skip_block(int ch) | |
464 | { | |
465 | unsigned char *start = s_chan[ch].pCurr; | |
466 | int flags = start[1]; | |
89cb2058 | 467 | int ret = check_irq(ch, start); |
07a6dd2c | 468 | |
e4f075af | 469 | if(s_chan[ch].prevflags & 1) |
470 | start = s_chan[ch].pLoop; | |
07a6dd2c | 471 | |
381ea103 | 472 | if(flags & 4) |
be1cb678 | 473 | s_chan[ch].pLoop = start; |
07a6dd2c | 474 | |
e4f075af | 475 | start += 16; |
07a6dd2c | 476 | |
477 | if(flags & 1) | |
e4f075af | 478 | start = s_chan[ch].pLoop; |
07a6dd2c | 479 | |
e4f075af | 480 | s_chan[ch].pCurr = start; |
481 | s_chan[ch].prevflags = flags; | |
482 | ||
89cb2058 | 483 | return ret; |
07a6dd2c | 484 | } |
485 | ||
650adfd2 | 486 | // if irq is going to trigger sooner than in upd_samples, set upd_samples |
487 | static void scan_for_irq(int ch, unsigned int *upd_samples) | |
488 | { | |
489 | int pos, sinc, sinc_inv, end; | |
490 | unsigned char *block; | |
491 | int flags; | |
492 | ||
493 | block = s_chan[ch].pCurr; | |
494 | pos = s_chan[ch].spos; | |
495 | sinc = s_chan[ch].sinc; | |
496 | end = pos + *upd_samples * sinc; | |
497 | ||
498 | pos += (28 - s_chan[ch].iSBPos) << 16; | |
499 | while (pos < end) | |
500 | { | |
3154bfab | 501 | if (block == spu.pSpuIrq) |
650adfd2 | 502 | break; |
503 | flags = block[1]; | |
504 | block += 16; | |
505 | if (flags & 1) { // 1: stop/loop | |
506 | block = s_chan[ch].pLoop; | |
3154bfab | 507 | if (block == spu.pSpuIrq) // hack.. (see decode_block) |
650adfd2 | 508 | break; |
509 | } | |
510 | pos += 28 << 16; | |
511 | } | |
512 | ||
513 | if (pos < end) | |
514 | { | |
515 | sinc_inv = s_chan[ch].sinc_inv; | |
516 | if (sinc_inv == 0) | |
517 | sinc_inv = s_chan[ch].sinc_inv = (0x80000000u / (uint32_t)sinc) << 1; | |
518 | ||
519 | pos -= s_chan[ch].spos; | |
520 | *upd_samples = (((uint64_t)pos * sinc_inv) >> 32) + 1; | |
521 | //xprintf("ch%02d: irq sched: %3d %03d\n", | |
522 | // ch, *upd_samples, *upd_samples * 60 * 263 / 44100); | |
523 | } | |
524 | } | |
525 | ||
07a6dd2c | 526 | #define make_do_samples(name, fmod_code, interp_start, interp1_code, interp2_code, interp_end) \ |
650adfd2 | 527 | static noinline int do_samples_##name(int ch, int ns, int ns_to) \ |
07a6dd2c | 528 | { \ |
529 | int sinc = s_chan[ch].sinc; \ | |
530 | int spos = s_chan[ch].spos; \ | |
381ea103 | 531 | int sbpos = s_chan[ch].iSBPos; \ |
532 | int *SB = s_chan[ch].SB; \ | |
07a6dd2c | 533 | int ret = -1; \ |
534 | int d, fa; \ | |
535 | interp_start; \ | |
536 | \ | |
537 | for (; ns < ns_to; ns++) \ | |
538 | { \ | |
539 | fmod_code; \ | |
540 | \ | |
650adfd2 | 541 | spos += sinc; \ |
07a6dd2c | 542 | while (spos >= 0x10000) \ |
543 | { \ | |
650adfd2 | 544 | fa = SB[sbpos++]; \ |
545 | if(sbpos >= 28) \ | |
07a6dd2c | 546 | { \ |
381ea103 | 547 | sbpos = 0; \ |
07a6dd2c | 548 | d = decode_block(ch); \ |
f2aec10a | 549 | if(d) \ |
650adfd2 | 550 | ret = /*ns_to =*/ ns + 1; \ |
07a6dd2c | 551 | } \ |
552 | \ | |
07a6dd2c | 553 | interp1_code; \ |
554 | spos -= 0x10000; \ | |
555 | } \ | |
556 | \ | |
557 | interp2_code; \ | |
07a6dd2c | 558 | } \ |
559 | \ | |
07a6dd2c | 560 | s_chan[ch].sinc = sinc; \ |
561 | s_chan[ch].spos = spos; \ | |
381ea103 | 562 | s_chan[ch].iSBPos = sbpos; \ |
07a6dd2c | 563 | interp_end; \ |
564 | \ | |
565 | return ret; \ | |
566 | } | |
567 | ||
568 | #define fmod_recv_check \ | |
569 | if(s_chan[ch].bFMod==1 && iFMod[ns]) \ | |
570 | sinc = FModChangeFrequency(ch,ns) | |
571 | ||
572 | make_do_samples(default, fmod_recv_check, , | |
573 | StoreInterpolationVal(ch, fa), | |
8cd23d6d | 574 | ChanBuf[ns] = iGetInterpolationVal(ch, spos), ) |
07a6dd2c | 575 | make_do_samples(noint, , fa = s_chan[ch].SB[29], , ChanBuf[ns] = fa, s_chan[ch].SB[29] = fa) |
576 | ||
577 | #define simple_interp_store \ | |
578 | s_chan[ch].SB[28] = 0; \ | |
579 | s_chan[ch].SB[29] = s_chan[ch].SB[30]; \ | |
580 | s_chan[ch].SB[30] = s_chan[ch].SB[31]; \ | |
581 | s_chan[ch].SB[31] = fa; \ | |
582 | s_chan[ch].SB[32] = 1 | |
583 | ||
584 | #define simple_interp_get \ | |
585 | if(sinc<0x10000) /* -> upsampling? */ \ | |
586 | InterpolateUp(ch); /* --> interpolate up */ \ | |
587 | else InterpolateDown(ch); /* --> else down */ \ | |
588 | ChanBuf[ns] = s_chan[ch].SB[29] | |
589 | ||
590 | make_do_samples(simple, , , | |
591 | simple_interp_store, simple_interp_get, ) | |
592 | ||
650adfd2 | 593 | static noinline int do_samples_noise(int ch, int ns, int ns_to) |
07a6dd2c | 594 | { |
b1094d0e | 595 | int level, shift, bit; |
89cb2058 | 596 | int ret = -1, d; |
b1094d0e | 597 | |
07a6dd2c | 598 | s_chan[ch].spos += s_chan[ch].sinc * (ns_to - ns); |
599 | while (s_chan[ch].spos >= 28*0x10000) | |
600 | { | |
89cb2058 | 601 | d = skip_block(ch); |
602 | if (d) | |
603 | ret = ns_to; | |
07a6dd2c | 604 | s_chan[ch].spos -= 28*0x10000; |
605 | } | |
606 | ||
b1094d0e | 607 | // modified from DrHell/shalma, no fraction |
3154bfab | 608 | level = (spu.spuCtrl >> 10) & 0x0f; |
b1094d0e | 609 | level = 0x8000 >> level; |
610 | ||
07a6dd2c | 611 | for (; ns < ns_to; ns++) |
b1094d0e | 612 | { |
3154bfab | 613 | spu.dwNoiseCount += 2; |
614 | if (spu.dwNoiseCount >= level) | |
b1094d0e | 615 | { |
3154bfab | 616 | spu.dwNoiseCount -= level; |
617 | shift = (spu.dwNoiseVal >> 10) & 0x1f; | |
b1094d0e | 618 | bit = (0x69696969 >> shift) & 1; |
3154bfab | 619 | if (spu.dwNoiseVal & 0x8000) |
b1094d0e | 620 | bit ^= 1; |
3154bfab | 621 | spu.dwNoiseVal = (spu.dwNoiseVal << 1) | bit; |
b1094d0e | 622 | } |
623 | ||
3154bfab | 624 | ChanBuf[ns] = (signed short)spu.dwNoiseVal; |
b1094d0e | 625 | } |
07a6dd2c | 626 | |
89cb2058 | 627 | return ret; |
07a6dd2c | 628 | } |
629 | ||
665f33e1 | 630 | #ifdef HAVE_ARMV5 |
3a721c1f | 631 | // asm code; lv and rv must be 0-3fff |
b17618c0 | 632 | extern void mix_chan(int start, int count, int lv, int rv); |
3154bfab | 633 | extern void mix_chan_rvb(int start, int count, int lv, int rv, int *rvb); |
b17618c0 | 634 | #else |
635 | static void mix_chan(int start, int count, int lv, int rv) | |
636 | { | |
637 | int *dst = SSumLR + start * 2; | |
638 | const int *src = ChanBuf + start; | |
639 | int l, r; | |
640 | ||
641 | while (count--) | |
642 | { | |
643 | int sval = *src++; | |
644 | ||
645 | l = (sval * lv) >> 14; | |
646 | r = (sval * rv) >> 14; | |
647 | *dst++ += l; | |
648 | *dst++ += r; | |
649 | } | |
650 | } | |
651 | ||
3154bfab | 652 | static void mix_chan_rvb(int start, int count, int lv, int rv, int *rvb) |
b17618c0 | 653 | { |
654 | int *dst = SSumLR + start * 2; | |
3154bfab | 655 | int *drvb = rvb + start * 2; |
b17618c0 | 656 | const int *src = ChanBuf + start; |
657 | int l, r; | |
658 | ||
659 | while (count--) | |
660 | { | |
661 | int sval = *src++; | |
662 | ||
663 | l = (sval * lv) >> 14; | |
664 | r = (sval * rv) >> 14; | |
665 | *dst++ += l; | |
666 | *dst++ += r; | |
667 | *drvb++ += l; | |
668 | *drvb++ += r; | |
669 | } | |
670 | } | |
671 | #endif | |
672 | ||
b72f17a1 | 673 | // 0x0800-0x0bff Voice 1 |
674 | // 0x0c00-0x0fff Voice 3 | |
650adfd2 | 675 | static noinline void do_decode_bufs(int which, int start, int count) |
b72f17a1 | 676 | { |
677 | const int *src = ChanBuf + start; | |
3154bfab | 678 | unsigned short *dst = &spu.spuMem[0x800/2 + which*0x400/2]; |
679 | int cursor = spu.decode_pos + start; | |
b72f17a1 | 680 | |
681 | while (count-- > 0) | |
682 | { | |
ee9afdbd | 683 | cursor &= 0x1ff; |
b72f17a1 | 684 | dst[cursor] = *src++; |
ee9afdbd | 685 | cursor++; |
b72f17a1 | 686 | } |
687 | ||
688 | // decode_pos is updated and irqs are checked later, after voice loop | |
689 | } | |
690 | ||
ef79bbde P |
691 | //////////////////////////////////////////////////////////////////////// |
692 | // MAIN SPU FUNCTION | |
6d75977b | 693 | // here is the main job handler... |
ef79bbde P |
694 | // basically the whole sound processing is done in this fat func! |
695 | //////////////////////////////////////////////////////////////////////// | |
696 | ||
650adfd2 | 697 | void do_samples(unsigned int cycles_to) |
ef79bbde | 698 | { |
650adfd2 | 699 | const int ns_from = 0; |
700 | int ns,ns_to,ns_len; | |
3154bfab | 701 | int volmult = spu_config.iVolume; |
174c454a | 702 | int ch,d,silentch; |
650adfd2 | 703 | int cycle_diff; |
ef79bbde | 704 | |
3154bfab | 705 | cycle_diff = cycles_to - spu.cycles_played; |
650adfd2 | 706 | if (cycle_diff < -2*1048576 || cycle_diff > 2*1048576) |
707 | { | |
708 | //xprintf("desync %u %d\n", cycles_to, cycle_diff); | |
3154bfab | 709 | spu.cycles_played = cycles_to; |
650adfd2 | 710 | return; |
711 | } | |
e34a4bd3 | 712 | |
650adfd2 | 713 | if (cycle_diff < 2 * 768) |
714 | return; | |
e34a4bd3 | 715 | |
650adfd2 | 716 | ns_to = (cycle_diff / 768 + 1) & ~1; |
717 | if (ns_to > NSSIZE) { | |
718 | // should never happen | |
719 | //xprintf("ns_to oflow %d %d\n", ns_to, NSSIZE); | |
720 | ns_to = NSSIZE; | |
721 | } | |
722 | ||
723 | ////////////////////////////////////////////////////// | |
724 | // special irq handling in the decode buffers (0x0000-0x1000) | |
725 | // we know: | |
726 | // the decode buffers are located in spu memory in the following way: | |
727 | // 0x0000-0x03ff CD audio left | |
728 | // 0x0400-0x07ff CD audio right | |
729 | // 0x0800-0x0bff Voice 1 | |
730 | // 0x0c00-0x0fff Voice 3 | |
731 | // and decoded data is 16 bit for one sample | |
732 | // we assume: | |
733 | // even if voices 1/3 are off or no cd audio is playing, the internal | |
734 | // play positions will move on and wrap after 0x400 bytes. | |
735 | // Therefore: we just need a pointer from spumem+0 to spumem+3ff, and | |
736 | // increase this pointer on each sample by 2 bytes. If this pointer | |
737 | // (or 0x400 offsets of this pointer) hits the spuirq address, we generate | |
738 | // an IRQ. | |
739 | ||
3154bfab | 740 | if (unlikely((spu.spuCtrl & CTRL_IRQ) |
741 | && spu.pSpuIrq && spu.pSpuIrq < spu.spuMemC+0x1000)) | |
650adfd2 | 742 | { |
3154bfab | 743 | int irq_pos = (spu.pSpuIrq - spu.spuMemC) / 2 & 0x1ff; |
744 | int left = (irq_pos - spu.decode_pos) & 0x1ff; | |
650adfd2 | 745 | if (0 < left && left <= ns_to) |
746 | { | |
3154bfab | 747 | //xprintf("decoder irq %x\n", spu.decode_pos); |
650adfd2 | 748 | do_irq(); |
650adfd2 | 749 | } |
750 | } | |
751 | ||
752 | InitREVERB(ns_to); | |
ef79bbde | 753 | |
650adfd2 | 754 | { |
3154bfab | 755 | silentch=~(spu.dwChannelOn|spu.dwNewChannel); |
174c454a | 756 | |
ef79bbde P |
757 | //--------------------------------------------------// |
758 | //- main channel loop -// | |
759 | //--------------------------------------------------// | |
760 | { | |
650adfd2 | 761 | for(ch=0;ch<MAXCHAN;ch++) // loop em all... |
ef79bbde | 762 | { |
3154bfab | 763 | if(spu.dwNewChannel&(1<<ch)) StartSound(ch); // start new sound |
764 | if(!(spu.dwChannelOn&(1<<ch))) continue; // channel not playing? next | |
ef79bbde | 765 | |
07a6dd2c | 766 | if(s_chan[ch].bNoise) |
650adfd2 | 767 | do_samples_noise(ch, ns_from, ns_to); |
3154bfab | 768 | else if(s_chan[ch].bFMod==2 || (s_chan[ch].bFMod==0 && spu_config.iUseInterpolation==0)) |
650adfd2 | 769 | do_samples_noint(ch, ns_from, ns_to); |
3154bfab | 770 | else if(s_chan[ch].bFMod==0 && spu_config.iUseInterpolation==1) |
650adfd2 | 771 | do_samples_simple(ch, ns_from, ns_to); |
07a6dd2c | 772 | else |
650adfd2 | 773 | do_samples_default(ch, ns_from, ns_to); |
774 | ||
e391d21c | 775 | ns_len = ns_to - ns_from; |
ef79bbde | 776 | |
1ab7621a | 777 | MixADSR(ch, ns_from, ns_to); |
778 | ||
b72f17a1 | 779 | if(ch==1 || ch==3) |
780 | { | |
e391d21c | 781 | do_decode_bufs(ch/2, ns_from, ns_len); |
3154bfab | 782 | spu.decode_dirty_ch |= 1<<ch; |
b72f17a1 | 783 | } |
784 | ||
1ab7621a | 785 | if(s_chan[ch].bFMod==2) // fmod freq channel |
e391d21c | 786 | memcpy(&iFMod[ns_from], &ChanBuf[ns_from], ns_len * sizeof(iFMod[0])); |
787 | if(s_chan[ch].bRVBActive) | |
3154bfab | 788 | mix_chan_rvb(ns_from, ns_len, s_chan[ch].iLeftVolume, s_chan[ch].iRightVolume, spu.sRVBStart); |
1775933a | 789 | else |
e391d21c | 790 | mix_chan(ns_from, ns_len, s_chan[ch].iLeftVolume, s_chan[ch].iRightVolume); |
ef79bbde P |
791 | } |
792 | } | |
793 | ||
78c60846 | 794 | // advance "stopped" channels that can cause irqs |
795 | // (all chans are always playing on the real thing..) | |
3154bfab | 796 | if(spu.spuCtrl&CTRL_IRQ) |
78c60846 | 797 | for(ch=0;ch<MAXCHAN;ch++) |
798 | { | |
174c454a | 799 | if(!(silentch&(1<<ch))) continue; // already handled |
3154bfab | 800 | if(spu.dwChannelDead&(1<<ch)) continue; |
801 | if(s_chan[ch].pCurr > spu.pSpuIrq && s_chan[ch].pLoop > spu.pSpuIrq) | |
78c60846 | 802 | continue; |
803 | ||
f2aec10a | 804 | s_chan[ch].spos += s_chan[ch].sinc * (ns_to - ns_from); |
78c60846 | 805 | while(s_chan[ch].spos >= 28 * 0x10000) |
806 | { | |
7e44d49d | 807 | unsigned char *start = s_chan[ch].pCurr; |
78c60846 | 808 | |
fb552464 | 809 | skip_block(ch); |
3154bfab | 810 | if(start == s_chan[ch].pCurr || start - spu.spuMemC < 0x1000) |
78c60846 | 811 | { |
f9fe4923 | 812 | // looping on self or stopped(?) |
3154bfab | 813 | spu.dwChannelDead |= 1<<ch; |
7e44d49d | 814 | s_chan[ch].spos = 0; |
78c60846 | 815 | break; |
816 | } | |
817 | ||
78c60846 | 818 | s_chan[ch].spos -= 28 * 0x10000; |
819 | } | |
820 | } | |
821 | ||
3154bfab | 822 | if(unlikely(silentch & spu.decode_dirty_ch & (1<<1))) // must clear silent channel decode buffers |
b72f17a1 | 823 | { |
3154bfab | 824 | memset(&spu.spuMem[0x800/2], 0, 0x400); |
825 | spu.decode_dirty_ch &= ~(1<<1); | |
b72f17a1 | 826 | } |
3154bfab | 827 | if(unlikely(silentch & spu.decode_dirty_ch & (1<<3))) |
b72f17a1 | 828 | { |
3154bfab | 829 | memset(&spu.spuMem[0xc00/2], 0, 0x400); |
830 | spu.decode_dirty_ch &= ~(1<<3); | |
b72f17a1 | 831 | } |
8680e822 | 832 | |
ef79bbde P |
833 | //---------------------------------------------------// |
834 | // mix XA infos (if any) | |
835 | ||
650adfd2 | 836 | MixXA(ns_to); |
ef79bbde P |
837 | |
838 | /////////////////////////////////////////////////////// | |
839 | // mix all channels (including reverb) into one buffer | |
840 | ||
3154bfab | 841 | if(spu_config.iUseReverb) |
650adfd2 | 842 | REVERBDo(ns_to); |
1775933a | 843 | |
3154bfab | 844 | if((spu.spuCtrl&0x4000)==0) // muted? (rare, don't optimize for this) |
1775933a | 845 | { |
3154bfab | 846 | memset(spu.pS, 0, ns_to * 2 * sizeof(spu.pS[0])); |
847 | spu.pS += ns_to * 2; | |
1775933a | 848 | } |
849 | else | |
650adfd2 | 850 | for (ns = 0; ns < ns_to * 2; ) |
ef79bbde | 851 | { |
9e7a7352 | 852 | d = SSumLR[ns]; SSumLR[ns] = 0; |
853 | d = d * volmult >> 10; | |
1775933a | 854 | ssat32_to_16(d); |
3154bfab | 855 | *spu.pS++ = d; |
97ea4077 | 856 | ns++; |
ef79bbde | 857 | |
9e7a7352 | 858 | d = SSumLR[ns]; SSumLR[ns] = 0; |
859 | d = d * volmult >> 10; | |
1775933a | 860 | ssat32_to_16(d); |
3154bfab | 861 | *spu.pS++ = d; |
97ea4077 | 862 | ns++; |
ef79bbde P |
863 | } |
864 | ||
3154bfab | 865 | spu.cycles_played += ns_to * 768; |
16187bfb | 866 | |
3154bfab | 867 | spu.decode_pos = (spu.decode_pos + ns_to) & 0x1ff; |
650adfd2 | 868 | } |
869 | } | |
ef79bbde | 870 | |
650adfd2 | 871 | void schedule_next_irq(void) |
872 | { | |
873 | unsigned int upd_samples; | |
874 | int ch; | |
ef79bbde | 875 | |
3154bfab | 876 | if (spu.scheduleCallback == NULL) |
650adfd2 | 877 | return; |
e34a4bd3 | 878 | |
650adfd2 | 879 | upd_samples = 44100 / 50; |
e34a4bd3 | 880 | |
650adfd2 | 881 | for (ch = 0; ch < MAXCHAN; ch++) |
882 | { | |
3154bfab | 883 | if (spu.dwChannelDead & (1 << ch)) |
650adfd2 | 884 | continue; |
3154bfab | 885 | if ((unsigned long)(spu.pSpuIrq - s_chan[ch].pCurr) > IRQ_NEAR_BLOCKS * 16 |
886 | && (unsigned long)(spu.pSpuIrq - s_chan[ch].pLoop) > IRQ_NEAR_BLOCKS * 16) | |
650adfd2 | 887 | continue; |
16187bfb | 888 | |
650adfd2 | 889 | scan_for_irq(ch, &upd_samples); |
ef79bbde P |
890 | } |
891 | ||
3154bfab | 892 | if (unlikely(spu.pSpuIrq < spu.spuMemC + 0x1000)) |
650adfd2 | 893 | { |
3154bfab | 894 | int irq_pos = (spu.pSpuIrq - spu.spuMemC) / 2 & 0x1ff; |
895 | int left = (irq_pos - spu.decode_pos) & 0x1ff; | |
650adfd2 | 896 | if (0 < left && left < upd_samples) { |
3154bfab | 897 | //xprintf("decode: %3d (%3d/%3d)\n", left, spu.decode_pos, irq_pos); |
650adfd2 | 898 | upd_samples = left; |
899 | } | |
900 | } | |
16187bfb | 901 | |
650adfd2 | 902 | if (upd_samples < 44100 / 50) |
3154bfab | 903 | spu.scheduleCallback(upd_samples * 768); |
ef79bbde P |
904 | } |
905 | ||
906 | // SPU ASYNC... even newer epsxe func | |
907 | // 1 time every 'cycle' cycles... harhar | |
908 | ||
650adfd2 | 909 | // rearmed: called dynamically now |
554a2220 | 910 | |
650adfd2 | 911 | void CALLBACK SPUasync(unsigned int cycle, unsigned int flags) |
ef79bbde | 912 | { |
650adfd2 | 913 | do_samples(cycle); |
fb552464 | 914 | |
3154bfab | 915 | if (spu.spuCtrl & CTRL_IRQ) |
650adfd2 | 916 | schedule_next_irq(); |
f8edb5bc | 917 | |
650adfd2 | 918 | if (flags & 1) { |
3154bfab | 919 | out_current->feed(spu.pSpuBuffer, (unsigned char *)spu.pS - spu.pSpuBuffer); |
920 | spu.pS = (short *)spu.pSpuBuffer; | |
fb552464 | 921 | |
3154bfab | 922 | if (spu_config.iTempo) { |
650adfd2 | 923 | if (!out_current->busy()) |
924 | // cause more samples to be generated | |
925 | // (and break some games because of bad sync) | |
3154bfab | 926 | spu.cycles_played -= 44100 / 60 / 2 * 768; |
ef79bbde | 927 | } |
650adfd2 | 928 | } |
ef79bbde P |
929 | } |
930 | ||
931 | // SPU UPDATE... new epsxe func | |
932 | // 1 time every 32 hsync lines | |
933 | // (312/32)x50 in pal | |
934 | // (262/32)x60 in ntsc | |
935 | ||
936 | // since epsxe 1.5.2 (linux) uses SPUupdate, not SPUasync, I will | |
937 | // leave that func in the linux port, until epsxe linux is using | |
938 | // the async function as well | |
939 | ||
940 | void CALLBACK SPUupdate(void) | |
941 | { | |
ef79bbde P |
942 | } |
943 | ||
944 | // XA AUDIO | |
945 | ||
946 | void CALLBACK SPUplayADPCMchannel(xa_decode_t *xap) | |
947 | { | |
948 | if(!xap) return; | |
949 | if(!xap->freq) return; // no xa freq ? bye | |
950 | ||
951 | FeedXA(xap); // call main XA feeder | |
952 | } | |
953 | ||
954 | // CDDA AUDIO | |
983a7cfd | 955 | int CALLBACK SPUplayCDDAchannel(short *pcm, int nbytes) |
ef79bbde | 956 | { |
983a7cfd | 957 | if (!pcm) return -1; |
958 | if (nbytes<=0) return -1; | |
ef79bbde | 959 | |
983a7cfd | 960 | return FeedCDDA((unsigned char *)pcm, nbytes); |
ef79bbde P |
961 | } |
962 | ||
6d75977b | 963 | // to be called after state load |
964 | void ClearWorkingState(void) | |
ef79bbde | 965 | { |
97ea4077 | 966 | memset(SSumLR,0,sizeof(SSumLR)); // init some mixing buffers |
6d75977b | 967 | memset(iFMod,0,sizeof(iFMod)); |
3154bfab | 968 | spu.pS=(short *)spu.pSpuBuffer; // setup soundbuffer pointer |
ef79bbde P |
969 | } |
970 | ||
971 | // SETUPSTREAMS: init most of the spu buffers | |
972 | void SetupStreams(void) | |
973 | { | |
974 | int i; | |
975 | ||
3154bfab | 976 | spu.pSpuBuffer = (unsigned char *)malloc(32768); // alloc mixing buffer |
977 | spu.sRVBStart = (int *)malloc(NSSIZE*2*4); // alloc reverb buffer | |
978 | memset(spu.sRVBStart,0,NSSIZE*2*4); | |
ef79bbde | 979 | |
3154bfab | 980 | spu.XAStart = // alloc xa buffer |
ef79bbde | 981 | (uint32_t *)malloc(44100 * sizeof(uint32_t)); |
3154bfab | 982 | spu.XAEnd = spu.XAStart + 44100; |
983 | spu.XAPlay = spu.XAStart; | |
984 | spu.XAFeed = spu.XAStart; | |
ef79bbde | 985 | |
3154bfab | 986 | spu.CDDAStart = // alloc cdda buffer |
983a7cfd | 987 | (uint32_t *)malloc(CDDA_BUFFER_SIZE); |
3154bfab | 988 | spu.CDDAEnd = spu.CDDAStart + 16384; |
989 | spu.CDDAPlay = spu.CDDAStart; | |
990 | spu.CDDAFeed = spu.CDDAStart; | |
ef79bbde P |
991 | |
992 | for(i=0;i<MAXCHAN;i++) // loop sound channels | |
993 | { | |
6d866bb7 | 994 | s_chan[i].ADSRX.SustainLevel = 0xf; // -> init sustain |
650adfd2 | 995 | s_chan[i].ADSRX.SustainIncrease = 1; |
3154bfab | 996 | s_chan[i].pLoop=spu.spuMemC; |
997 | s_chan[i].pCurr=spu.spuMemC; | |
ef79bbde P |
998 | } |
999 | ||
6d75977b | 1000 | ClearWorkingState(); |
1001 | ||
3154bfab | 1002 | spu.bSpuInit=1; // flag: we are inited |
ef79bbde P |
1003 | } |
1004 | ||
1005 | // REMOVESTREAMS: free most buffer | |
1006 | void RemoveStreams(void) | |
1007 | { | |
3154bfab | 1008 | free(spu.pSpuBuffer); // free mixing buffer |
1009 | spu.pSpuBuffer = NULL; | |
1010 | free(spu.sRVBStart); // free reverb buffer | |
1011 | spu.sRVBStart = NULL; | |
1012 | free(spu.XAStart); // free XA buffer | |
1013 | spu.XAStart = NULL; | |
1014 | free(spu.CDDAStart); // free CDDA buffer | |
1015 | spu.CDDAStart = NULL; | |
ef79bbde P |
1016 | } |
1017 | ||
1018 | // INIT/EXIT STUFF | |
1019 | ||
1020 | // SPUINIT: this func will be called first by the main emu | |
1021 | long CALLBACK SPUinit(void) | |
1022 | { | |
3154bfab | 1023 | spu.spuMemC = (unsigned char *)spu.spuMem; // just small setup |
ef79bbde P |
1024 | memset((void *)&rvb, 0, sizeof(REVERBInfo)); |
1025 | InitADSR(); | |
1026 | ||
3154bfab | 1027 | spu.spuAddr = 0xffffffff; |
1028 | spu.decode_pos = 0; | |
1029 | memset((void *)s_chan, 0, sizeof(s_chan)); | |
1030 | spu.pSpuIrq = 0; | |
ef79bbde | 1031 | |
ef79bbde P |
1032 | SetupStreams(); // prepare streaming |
1033 | ||
3154bfab | 1034 | if (spu_config.iVolume == 0) |
1035 | spu_config.iVolume = 768; // 1024 is 1.0 | |
1036 | ||
ef79bbde P |
1037 | return 0; |
1038 | } | |
1039 | ||
1040 | // SPUOPEN: called by main emu after init | |
1041 | long CALLBACK SPUopen(void) | |
1042 | { | |
3154bfab | 1043 | if (spu.bSPUIsOpen) return 0; // security for some stupid main emus |
ef79bbde P |
1044 | |
1045 | SetupSound(); // setup sound (before init!) | |
ef79bbde | 1046 | |
3154bfab | 1047 | spu.bSPUIsOpen = 1; |
ef79bbde P |
1048 | |
1049 | return PSE_SPU_ERR_SUCCESS; | |
1050 | } | |
1051 | ||
1052 | // SPUCLOSE: called before shutdown | |
1053 | long CALLBACK SPUclose(void) | |
1054 | { | |
3154bfab | 1055 | if (!spu.bSPUIsOpen) return 0; // some security |
ef79bbde | 1056 | |
3154bfab | 1057 | spu.bSPUIsOpen = 0; // no more open |
ef79bbde | 1058 | |
07c13dfd | 1059 | out_current->finish(); // no more sound handling |
ef79bbde P |
1060 | |
1061 | return 0; | |
1062 | } | |
1063 | ||
1064 | // SPUSHUTDOWN: called by main emu on final exit | |
1065 | long CALLBACK SPUshutdown(void) | |
1066 | { | |
1067 | SPUclose(); | |
1068 | RemoveStreams(); // no more streaming | |
3154bfab | 1069 | spu.bSpuInit=0; |
ef79bbde P |
1070 | |
1071 | return 0; | |
1072 | } | |
1073 | ||
1074 | // SPUTEST: we don't test, we are always fine ;) | |
1075 | long CALLBACK SPUtest(void) | |
1076 | { | |
1077 | return 0; | |
1078 | } | |
1079 | ||
1080 | // SPUCONFIGURE: call config dialog | |
1081 | long CALLBACK SPUconfigure(void) | |
1082 | { | |
1083 | #ifdef _MACOSX | |
1084 | DoConfiguration(); | |
1085 | #else | |
ee849648 | 1086 | // StartCfgTool("CFG"); |
ef79bbde P |
1087 | #endif |
1088 | return 0; | |
1089 | } | |
1090 | ||
1091 | // SPUABOUT: show about window | |
1092 | void CALLBACK SPUabout(void) | |
1093 | { | |
1094 | #ifdef _MACOSX | |
1095 | DoAbout(); | |
1096 | #else | |
ee849648 | 1097 | // StartCfgTool("ABOUT"); |
ef79bbde P |
1098 | #endif |
1099 | } | |
1100 | ||
1101 | // SETUP CALLBACKS | |
1102 | // this functions will be called once, | |
1103 | // passes a callback that should be called on SPU-IRQ/cdda volume change | |
1104 | void CALLBACK SPUregisterCallback(void (CALLBACK *callback)(void)) | |
1105 | { | |
3154bfab | 1106 | spu.irqCallback = callback; |
ef79bbde P |
1107 | } |
1108 | ||
1109 | void CALLBACK SPUregisterCDDAVolume(void (CALLBACK *CDDAVcallback)(unsigned short,unsigned short)) | |
1110 | { | |
3154bfab | 1111 | spu.cddavCallback = CDDAVcallback; |
ef79bbde P |
1112 | } |
1113 | ||
2b30c129 | 1114 | void CALLBACK SPUregisterScheduleCb(void (CALLBACK *callback)(unsigned int)) |
1115 | { | |
3154bfab | 1116 | spu.scheduleCallback = callback; |
2b30c129 | 1117 | } |
1118 | ||
ef79bbde | 1119 | // COMMON PLUGIN INFO FUNCS |
e906c010 | 1120 | /* |
ef79bbde P |
1121 | char * CALLBACK PSEgetLibName(void) |
1122 | { | |
1123 | return _(libraryName); | |
1124 | } | |
1125 | ||
1126 | unsigned long CALLBACK PSEgetLibType(void) | |
1127 | { | |
1128 | return PSE_LT_SPU; | |
1129 | } | |
1130 | ||
1131 | unsigned long CALLBACK PSEgetLibVersion(void) | |
1132 | { | |
1133 | return (1 << 16) | (6 << 8); | |
1134 | } | |
1135 | ||
1136 | char * SPUgetLibInfos(void) | |
1137 | { | |
1138 | return _(libraryInfo); | |
1139 | } | |
e906c010 | 1140 | */ |
6d866bb7 | 1141 | |
90f1d26c | 1142 | // debug |
174c454a | 1143 | void spu_get_debug_info(int *chans_out, int *run_chans, int *fmod_chans_out, int *noise_chans_out) |
90f1d26c | 1144 | { |
174c454a | 1145 | int ch = 0, fmod_chans = 0, noise_chans = 0, irq_chans = 0; |
90f1d26c | 1146 | |
1147 | for(;ch<MAXCHAN;ch++) | |
1148 | { | |
3154bfab | 1149 | if (!(spu.dwChannelOn & (1<<ch))) |
90f1d26c | 1150 | continue; |
1151 | if (s_chan[ch].bFMod == 2) | |
1152 | fmod_chans |= 1 << ch; | |
1153 | if (s_chan[ch].bNoise) | |
1154 | noise_chans |= 1 << ch; | |
3154bfab | 1155 | if((spu.spuCtrl&CTRL_IRQ) && s_chan[ch].pCurr <= spu.pSpuIrq && s_chan[ch].pLoop <= spu.pSpuIrq) |
174c454a | 1156 | irq_chans |= 1 << ch; |
90f1d26c | 1157 | } |
1158 | ||
3154bfab | 1159 | *chans_out = spu.dwChannelOn; |
1160 | *run_chans = ~spu.dwChannelOn & ~spu.dwChannelDead & irq_chans; | |
90f1d26c | 1161 | *fmod_chans_out = fmod_chans; |
1162 | *noise_chans_out = noise_chans; | |
1163 | } | |
1164 | ||
6d866bb7 | 1165 | // vim:shiftwidth=1:expandtab |