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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 | |
bdd050c3 | 8 | Portions (C) GraÅžvydas "notaz" Ignotas, 2010-2012,2014 |
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; | |
bdd050c3 | 256 | s_chan[ch].iSBPos=27; |
ef79bbde | 257 | |
bdd050c3 | 258 | s_chan[ch].SB[28]=0; |
ef79bbde P |
259 | s_chan[ch].SB[29]=0; // init our interpolation helpers |
260 | s_chan[ch].SB[30]=0; | |
bdd050c3 | 261 | s_chan[ch].SB[31]=0; |
262 | s_chan[ch].spos=0; | |
ef79bbde | 263 | |
3154bfab | 264 | spu.dwNewChannel&=~(1<<ch); // clear new channel bit |
ef79bbde P |
265 | } |
266 | ||
267 | //////////////////////////////////////////////////////////////////////// | |
268 | // ALL KIND OF HELPERS | |
269 | //////////////////////////////////////////////////////////////////////// | |
270 | ||
07a6dd2c | 271 | INLINE int FModChangeFrequency(int ch,int ns) |
ef79bbde | 272 | { |
7e44d49d | 273 | unsigned int NP=s_chan[ch].iRawPitch; |
07a6dd2c | 274 | int sinc; |
ef79bbde P |
275 | |
276 | NP=((32768L+iFMod[ns])*NP)/32768L; | |
277 | ||
278 | if(NP>0x3fff) NP=0x3fff; | |
279 | if(NP<0x1) NP=0x1; | |
280 | ||
7e44d49d | 281 | sinc=NP<<4; // calc frequency |
3154bfab | 282 | if(spu_config.iUseInterpolation==1) // freq change in simple interpolation mode |
07a6dd2c | 283 | s_chan[ch].SB[32]=1; |
ef79bbde | 284 | iFMod[ns]=0; |
07a6dd2c | 285 | |
286 | return sinc; | |
ef79bbde P |
287 | } |
288 | ||
289 | //////////////////////////////////////////////////////////////////////// | |
290 | ||
ef79bbde P |
291 | INLINE void StoreInterpolationVal(int ch,int fa) |
292 | { | |
293 | if(s_chan[ch].bFMod==2) // fmod freq channel | |
294 | s_chan[ch].SB[29]=fa; | |
295 | else | |
296 | { | |
381ea103 | 297 | ssat32_to_16(fa); |
ef79bbde | 298 | |
3154bfab | 299 | if(spu_config.iUseInterpolation>=2) // gauss/cubic interpolation |
ef79bbde P |
300 | { |
301 | int gpos = s_chan[ch].SB[28]; | |
302 | gval0 = fa; | |
303 | gpos = (gpos+1) & 3; | |
304 | s_chan[ch].SB[28] = gpos; | |
305 | } | |
306 | else | |
3154bfab | 307 | if(spu_config.iUseInterpolation==1) // simple interpolation |
ef79bbde P |
308 | { |
309 | s_chan[ch].SB[28] = 0; | |
310 | 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' | |
311 | s_chan[ch].SB[30] = s_chan[ch].SB[31]; | |
312 | s_chan[ch].SB[31] = fa; | |
313 | s_chan[ch].SB[32] = 1; // -> flag: calc new interolation | |
314 | } | |
315 | else s_chan[ch].SB[29]=fa; // no interpolation | |
316 | } | |
317 | } | |
318 | ||
319 | //////////////////////////////////////////////////////////////////////// | |
320 | ||
8cd23d6d | 321 | INLINE int iGetInterpolationVal(int ch, int spos) |
ef79bbde P |
322 | { |
323 | int fa; | |
324 | ||
325 | if(s_chan[ch].bFMod==2) return s_chan[ch].SB[29]; | |
326 | ||
3154bfab | 327 | switch(spu_config.iUseInterpolation) |
ef79bbde P |
328 | { |
329 | //--------------------------------------------------// | |
330 | case 3: // cubic interpolation | |
331 | { | |
332 | long xd;int gpos; | |
8cd23d6d | 333 | xd = (spos >> 1)+1; |
ef79bbde P |
334 | gpos = s_chan[ch].SB[28]; |
335 | ||
336 | fa = gval(3) - 3*gval(2) + 3*gval(1) - gval0; | |
337 | fa *= (xd - (2<<15)) / 6; | |
338 | fa >>= 15; | |
339 | fa += gval(2) - gval(1) - gval(1) + gval0; | |
340 | fa *= (xd - (1<<15)) >> 1; | |
341 | fa >>= 15; | |
342 | fa += gval(1) - gval0; | |
343 | fa *= xd; | |
344 | fa >>= 15; | |
345 | fa = fa + gval0; | |
346 | ||
347 | } break; | |
348 | //--------------------------------------------------// | |
349 | case 2: // gauss interpolation | |
350 | { | |
351 | int vl, vr;int gpos; | |
8cd23d6d | 352 | vl = (spos >> 6) & ~3; |
ef79bbde | 353 | gpos = s_chan[ch].SB[28]; |
f05d6ca2 | 354 | vr=(gauss[vl]*(int)gval0)&~2047; |
ef79bbde P |
355 | vr+=(gauss[vl+1]*gval(1))&~2047; |
356 | vr+=(gauss[vl+2]*gval(2))&~2047; | |
357 | vr+=(gauss[vl+3]*gval(3))&~2047; | |
358 | fa = vr>>11; | |
359 | } break; | |
360 | //--------------------------------------------------// | |
361 | case 1: // simple interpolation | |
362 | { | |
363 | if(s_chan[ch].sinc<0x10000L) // -> upsampling? | |
364 | InterpolateUp(ch); // --> interpolate up | |
365 | else InterpolateDown(ch); // --> else down | |
366 | fa=s_chan[ch].SB[29]; | |
367 | } break; | |
368 | //--------------------------------------------------// | |
369 | default: // no interpolation | |
370 | { | |
371 | fa=s_chan[ch].SB[29]; | |
372 | } break; | |
373 | //--------------------------------------------------// | |
374 | } | |
375 | ||
376 | return fa; | |
377 | } | |
378 | ||
381ea103 | 379 | static void decode_block_data(int *dest, const unsigned char *src, int predict_nr, int shift_factor) |
380 | { | |
381 | int nSample; | |
382 | int fa, s_1, s_2, d, s; | |
383 | ||
384 | s_1 = dest[27]; | |
385 | s_2 = dest[26]; | |
386 | ||
387 | for (nSample = 0; nSample < 28; src++) | |
388 | { | |
389 | d = (int)*src; | |
390 | s = (int)(signed short)((d & 0x0f) << 12); | |
391 | ||
392 | fa = s >> shift_factor; | |
393 | fa += ((s_1 * f[predict_nr][0])>>6) + ((s_2 * f[predict_nr][1])>>6); | |
394 | s_2=s_1;s_1=fa; | |
395 | ||
396 | dest[nSample++] = fa; | |
397 | ||
398 | s = (int)(signed short)((d & 0xf0) << 8); | |
399 | fa = s >> shift_factor; | |
400 | fa += ((s_1 * f[predict_nr][0])>>6) + ((s_2 * f[predict_nr][1])>>6); | |
401 | s_2=s_1;s_1=fa; | |
402 | ||
403 | dest[nSample++] = fa; | |
404 | } | |
405 | } | |
406 | ||
e11ae5c5 | 407 | static int decode_block(int ch) |
408 | { | |
409 | unsigned char *start; | |
381ea103 | 410 | int predict_nr,shift_factor,flags; |
f9fe4923 | 411 | int stop = 0; |
e11ae5c5 | 412 | int ret = 0; |
413 | ||
f9fe4923 | 414 | start = s_chan[ch].pCurr; // set up the current pos |
3154bfab | 415 | if(start == spu.spuMemC) // ? |
f9fe4923 | 416 | stop = 1; |
e11ae5c5 | 417 | |
e4f075af | 418 | if(s_chan[ch].prevflags&1) // 1: stop/loop |
3fc2a4c2 | 419 | { |
e4f075af | 420 | if(!(s_chan[ch].prevflags&2)) |
f9fe4923 | 421 | stop = 1; |
e4f075af | 422 | |
423 | start = s_chan[ch].pLoop; | |
3fc2a4c2 | 424 | } |
89cb2058 | 425 | else |
426 | ret = check_irq(ch, start); // hack, see check_irq below.. | |
e11ae5c5 | 427 | |
f9fe4923 | 428 | if(stop) |
429 | { | |
3154bfab | 430 | spu.dwChannelOn &= ~(1<<ch); // -> turn everything off |
f9fe4923 | 431 | s_chan[ch].bStop = 1; |
432 | s_chan[ch].ADSRX.EnvelopeVol = 0; | |
433 | } | |
434 | ||
381ea103 | 435 | predict_nr=(int)start[0]; |
e11ae5c5 | 436 | shift_factor=predict_nr&0xf; |
437 | predict_nr >>= 4; | |
e11ae5c5 | 438 | |
381ea103 | 439 | decode_block_data(s_chan[ch].SB, start + 2, predict_nr, shift_factor); |
e11ae5c5 | 440 | |
381ea103 | 441 | flags=(int)start[1]; |
442 | if(flags&4) | |
443 | s_chan[ch].pLoop=start; // loop adress | |
e11ae5c5 | 444 | |
381ea103 | 445 | start+=16; |
3fc2a4c2 | 446 | |
89cb2058 | 447 | if(flags&1) { // 1: stop/loop |
3fc2a4c2 | 448 | start = s_chan[ch].pLoop; |
89cb2058 | 449 | ret |= check_irq(ch, start); // hack.. :( |
450 | } | |
e11ae5c5 | 451 | |
3154bfab | 452 | if (start - spu.spuMemC >= 0x80000) |
453 | start = spu.spuMemC; | |
e4f075af | 454 | |
381ea103 | 455 | s_chan[ch].pCurr = start; // store values for next cycle |
e4f075af | 456 | s_chan[ch].prevflags = flags; |
e11ae5c5 | 457 | |
458 | return ret; | |
459 | } | |
460 | ||
07a6dd2c | 461 | // do block, but ignore sample data |
462 | static int skip_block(int ch) | |
463 | { | |
464 | unsigned char *start = s_chan[ch].pCurr; | |
465 | int flags = start[1]; | |
89cb2058 | 466 | int ret = check_irq(ch, start); |
07a6dd2c | 467 | |
e4f075af | 468 | if(s_chan[ch].prevflags & 1) |
469 | start = s_chan[ch].pLoop; | |
07a6dd2c | 470 | |
381ea103 | 471 | if(flags & 4) |
be1cb678 | 472 | s_chan[ch].pLoop = start; |
07a6dd2c | 473 | |
e4f075af | 474 | start += 16; |
07a6dd2c | 475 | |
476 | if(flags & 1) | |
e4f075af | 477 | start = s_chan[ch].pLoop; |
07a6dd2c | 478 | |
e4f075af | 479 | s_chan[ch].pCurr = start; |
480 | s_chan[ch].prevflags = flags; | |
481 | ||
89cb2058 | 482 | return ret; |
07a6dd2c | 483 | } |
484 | ||
650adfd2 | 485 | // if irq is going to trigger sooner than in upd_samples, set upd_samples |
486 | static void scan_for_irq(int ch, unsigned int *upd_samples) | |
487 | { | |
488 | int pos, sinc, sinc_inv, end; | |
489 | unsigned char *block; | |
490 | int flags; | |
491 | ||
492 | block = s_chan[ch].pCurr; | |
493 | pos = s_chan[ch].spos; | |
494 | sinc = s_chan[ch].sinc; | |
495 | end = pos + *upd_samples * sinc; | |
496 | ||
497 | pos += (28 - s_chan[ch].iSBPos) << 16; | |
498 | while (pos < end) | |
499 | { | |
3154bfab | 500 | if (block == spu.pSpuIrq) |
650adfd2 | 501 | break; |
502 | flags = block[1]; | |
503 | block += 16; | |
504 | if (flags & 1) { // 1: stop/loop | |
505 | block = s_chan[ch].pLoop; | |
3154bfab | 506 | if (block == spu.pSpuIrq) // hack.. (see decode_block) |
650adfd2 | 507 | break; |
508 | } | |
509 | pos += 28 << 16; | |
510 | } | |
511 | ||
512 | if (pos < end) | |
513 | { | |
514 | sinc_inv = s_chan[ch].sinc_inv; | |
515 | if (sinc_inv == 0) | |
516 | sinc_inv = s_chan[ch].sinc_inv = (0x80000000u / (uint32_t)sinc) << 1; | |
517 | ||
518 | pos -= s_chan[ch].spos; | |
519 | *upd_samples = (((uint64_t)pos * sinc_inv) >> 32) + 1; | |
520 | //xprintf("ch%02d: irq sched: %3d %03d\n", | |
521 | // ch, *upd_samples, *upd_samples * 60 * 263 / 44100); | |
522 | } | |
523 | } | |
524 | ||
07a6dd2c | 525 | #define make_do_samples(name, fmod_code, interp_start, interp1_code, interp2_code, interp_end) \ |
650adfd2 | 526 | static noinline int do_samples_##name(int ch, int ns, int ns_to) \ |
07a6dd2c | 527 | { \ |
528 | int sinc = s_chan[ch].sinc; \ | |
529 | int spos = s_chan[ch].spos; \ | |
381ea103 | 530 | int sbpos = s_chan[ch].iSBPos; \ |
531 | int *SB = s_chan[ch].SB; \ | |
07a6dd2c | 532 | int ret = -1; \ |
533 | int d, fa; \ | |
534 | interp_start; \ | |
535 | \ | |
536 | for (; ns < ns_to; ns++) \ | |
537 | { \ | |
538 | fmod_code; \ | |
539 | \ | |
650adfd2 | 540 | spos += sinc; \ |
07a6dd2c | 541 | while (spos >= 0x10000) \ |
542 | { \ | |
650adfd2 | 543 | fa = SB[sbpos++]; \ |
544 | if(sbpos >= 28) \ | |
07a6dd2c | 545 | { \ |
381ea103 | 546 | sbpos = 0; \ |
07a6dd2c | 547 | d = decode_block(ch); \ |
f2aec10a | 548 | if(d) \ |
650adfd2 | 549 | ret = /*ns_to =*/ ns + 1; \ |
07a6dd2c | 550 | } \ |
551 | \ | |
07a6dd2c | 552 | interp1_code; \ |
553 | spos -= 0x10000; \ | |
554 | } \ | |
555 | \ | |
556 | interp2_code; \ | |
07a6dd2c | 557 | } \ |
558 | \ | |
07a6dd2c | 559 | s_chan[ch].sinc = sinc; \ |
560 | s_chan[ch].spos = spos; \ | |
381ea103 | 561 | s_chan[ch].iSBPos = sbpos; \ |
07a6dd2c | 562 | interp_end; \ |
563 | \ | |
564 | return ret; \ | |
565 | } | |
566 | ||
567 | #define fmod_recv_check \ | |
568 | if(s_chan[ch].bFMod==1 && iFMod[ns]) \ | |
569 | sinc = FModChangeFrequency(ch,ns) | |
570 | ||
571 | make_do_samples(default, fmod_recv_check, , | |
572 | StoreInterpolationVal(ch, fa), | |
8cd23d6d | 573 | ChanBuf[ns] = iGetInterpolationVal(ch, spos), ) |
07a6dd2c | 574 | make_do_samples(noint, , fa = s_chan[ch].SB[29], , ChanBuf[ns] = fa, s_chan[ch].SB[29] = fa) |
575 | ||
576 | #define simple_interp_store \ | |
577 | s_chan[ch].SB[28] = 0; \ | |
578 | s_chan[ch].SB[29] = s_chan[ch].SB[30]; \ | |
579 | s_chan[ch].SB[30] = s_chan[ch].SB[31]; \ | |
580 | s_chan[ch].SB[31] = fa; \ | |
581 | s_chan[ch].SB[32] = 1 | |
582 | ||
583 | #define simple_interp_get \ | |
584 | if(sinc<0x10000) /* -> upsampling? */ \ | |
585 | InterpolateUp(ch); /* --> interpolate up */ \ | |
586 | else InterpolateDown(ch); /* --> else down */ \ | |
587 | ChanBuf[ns] = s_chan[ch].SB[29] | |
588 | ||
589 | make_do_samples(simple, , , | |
590 | simple_interp_store, simple_interp_get, ) | |
591 | ||
650adfd2 | 592 | static noinline int do_samples_noise(int ch, int ns, int ns_to) |
07a6dd2c | 593 | { |
b1094d0e | 594 | int level, shift, bit; |
89cb2058 | 595 | int ret = -1, d; |
b1094d0e | 596 | |
07a6dd2c | 597 | s_chan[ch].spos += s_chan[ch].sinc * (ns_to - ns); |
598 | while (s_chan[ch].spos >= 28*0x10000) | |
599 | { | |
89cb2058 | 600 | d = skip_block(ch); |
601 | if (d) | |
602 | ret = ns_to; | |
07a6dd2c | 603 | s_chan[ch].spos -= 28*0x10000; |
604 | } | |
605 | ||
b1094d0e | 606 | // modified from DrHell/shalma, no fraction |
3154bfab | 607 | level = (spu.spuCtrl >> 10) & 0x0f; |
b1094d0e | 608 | level = 0x8000 >> level; |
609 | ||
07a6dd2c | 610 | for (; ns < ns_to; ns++) |
b1094d0e | 611 | { |
3154bfab | 612 | spu.dwNoiseCount += 2; |
613 | if (spu.dwNoiseCount >= level) | |
b1094d0e | 614 | { |
3154bfab | 615 | spu.dwNoiseCount -= level; |
616 | shift = (spu.dwNoiseVal >> 10) & 0x1f; | |
b1094d0e | 617 | bit = (0x69696969 >> shift) & 1; |
3154bfab | 618 | if (spu.dwNoiseVal & 0x8000) |
b1094d0e | 619 | bit ^= 1; |
3154bfab | 620 | spu.dwNoiseVal = (spu.dwNoiseVal << 1) | bit; |
b1094d0e | 621 | } |
622 | ||
3154bfab | 623 | ChanBuf[ns] = (signed short)spu.dwNoiseVal; |
b1094d0e | 624 | } |
07a6dd2c | 625 | |
89cb2058 | 626 | return ret; |
07a6dd2c | 627 | } |
628 | ||
665f33e1 | 629 | #ifdef HAVE_ARMV5 |
3a721c1f | 630 | // asm code; lv and rv must be 0-3fff |
b17618c0 | 631 | extern void mix_chan(int start, int count, int lv, int rv); |
3154bfab | 632 | extern void mix_chan_rvb(int start, int count, int lv, int rv, int *rvb); |
b17618c0 | 633 | #else |
634 | static void mix_chan(int start, int count, int lv, int rv) | |
635 | { | |
636 | int *dst = SSumLR + start * 2; | |
637 | const int *src = ChanBuf + start; | |
638 | int l, r; | |
639 | ||
640 | while (count--) | |
641 | { | |
642 | int sval = *src++; | |
643 | ||
644 | l = (sval * lv) >> 14; | |
645 | r = (sval * rv) >> 14; | |
646 | *dst++ += l; | |
647 | *dst++ += r; | |
648 | } | |
649 | } | |
650 | ||
3154bfab | 651 | static void mix_chan_rvb(int start, int count, int lv, int rv, int *rvb) |
b17618c0 | 652 | { |
653 | int *dst = SSumLR + start * 2; | |
3154bfab | 654 | int *drvb = rvb + start * 2; |
b17618c0 | 655 | const int *src = ChanBuf + start; |
656 | int l, r; | |
657 | ||
658 | while (count--) | |
659 | { | |
660 | int sval = *src++; | |
661 | ||
662 | l = (sval * lv) >> 14; | |
663 | r = (sval * rv) >> 14; | |
664 | *dst++ += l; | |
665 | *dst++ += r; | |
666 | *drvb++ += l; | |
667 | *drvb++ += r; | |
668 | } | |
669 | } | |
670 | #endif | |
671 | ||
b72f17a1 | 672 | // 0x0800-0x0bff Voice 1 |
673 | // 0x0c00-0x0fff Voice 3 | |
650adfd2 | 674 | static noinline void do_decode_bufs(int which, int start, int count) |
b72f17a1 | 675 | { |
676 | const int *src = ChanBuf + start; | |
3154bfab | 677 | unsigned short *dst = &spu.spuMem[0x800/2 + which*0x400/2]; |
678 | int cursor = spu.decode_pos + start; | |
b72f17a1 | 679 | |
680 | while (count-- > 0) | |
681 | { | |
ee9afdbd | 682 | cursor &= 0x1ff; |
b72f17a1 | 683 | dst[cursor] = *src++; |
ee9afdbd | 684 | cursor++; |
b72f17a1 | 685 | } |
686 | ||
687 | // decode_pos is updated and irqs are checked later, after voice loop | |
688 | } | |
689 | ||
ef79bbde P |
690 | //////////////////////////////////////////////////////////////////////// |
691 | // MAIN SPU FUNCTION | |
6d75977b | 692 | // here is the main job handler... |
ef79bbde P |
693 | // basically the whole sound processing is done in this fat func! |
694 | //////////////////////////////////////////////////////////////////////// | |
695 | ||
650adfd2 | 696 | void do_samples(unsigned int cycles_to) |
ef79bbde | 697 | { |
650adfd2 | 698 | const int ns_from = 0; |
699 | int ns,ns_to,ns_len; | |
3154bfab | 700 | int volmult = spu_config.iVolume; |
174c454a | 701 | int ch,d,silentch; |
650adfd2 | 702 | int cycle_diff; |
ef79bbde | 703 | |
3154bfab | 704 | cycle_diff = cycles_to - spu.cycles_played; |
650adfd2 | 705 | if (cycle_diff < -2*1048576 || cycle_diff > 2*1048576) |
706 | { | |
707 | //xprintf("desync %u %d\n", cycles_to, cycle_diff); | |
3154bfab | 708 | spu.cycles_played = cycles_to; |
650adfd2 | 709 | return; |
710 | } | |
e34a4bd3 | 711 | |
650adfd2 | 712 | if (cycle_diff < 2 * 768) |
713 | return; | |
e34a4bd3 | 714 | |
650adfd2 | 715 | ns_to = (cycle_diff / 768 + 1) & ~1; |
716 | if (ns_to > NSSIZE) { | |
717 | // should never happen | |
718 | //xprintf("ns_to oflow %d %d\n", ns_to, NSSIZE); | |
719 | ns_to = NSSIZE; | |
720 | } | |
721 | ||
722 | ////////////////////////////////////////////////////// | |
723 | // special irq handling in the decode buffers (0x0000-0x1000) | |
724 | // we know: | |
725 | // the decode buffers are located in spu memory in the following way: | |
726 | // 0x0000-0x03ff CD audio left | |
727 | // 0x0400-0x07ff CD audio right | |
728 | // 0x0800-0x0bff Voice 1 | |
729 | // 0x0c00-0x0fff Voice 3 | |
730 | // and decoded data is 16 bit for one sample | |
731 | // we assume: | |
732 | // even if voices 1/3 are off or no cd audio is playing, the internal | |
733 | // play positions will move on and wrap after 0x400 bytes. | |
734 | // Therefore: we just need a pointer from spumem+0 to spumem+3ff, and | |
735 | // increase this pointer on each sample by 2 bytes. If this pointer | |
736 | // (or 0x400 offsets of this pointer) hits the spuirq address, we generate | |
737 | // an IRQ. | |
738 | ||
3154bfab | 739 | if (unlikely((spu.spuCtrl & CTRL_IRQ) |
c4c66b22 | 740 | && spu.pSpuIrq < spu.spuMemC+0x1000)) |
650adfd2 | 741 | { |
3154bfab | 742 | int irq_pos = (spu.pSpuIrq - spu.spuMemC) / 2 & 0x1ff; |
743 | int left = (irq_pos - spu.decode_pos) & 0x1ff; | |
650adfd2 | 744 | if (0 < left && left <= ns_to) |
745 | { | |
3154bfab | 746 | //xprintf("decoder irq %x\n", spu.decode_pos); |
650adfd2 | 747 | do_irq(); |
650adfd2 | 748 | } |
749 | } | |
750 | ||
751 | InitREVERB(ns_to); | |
ef79bbde | 752 | |
650adfd2 | 753 | { |
3154bfab | 754 | silentch=~(spu.dwChannelOn|spu.dwNewChannel); |
174c454a | 755 | |
ef79bbde P |
756 | //--------------------------------------------------// |
757 | //- main channel loop -// | |
758 | //--------------------------------------------------// | |
759 | { | |
650adfd2 | 760 | for(ch=0;ch<MAXCHAN;ch++) // loop em all... |
ef79bbde | 761 | { |
3154bfab | 762 | if(spu.dwNewChannel&(1<<ch)) StartSound(ch); // start new sound |
763 | if(!(spu.dwChannelOn&(1<<ch))) continue; // channel not playing? next | |
ef79bbde | 764 | |
07a6dd2c | 765 | if(s_chan[ch].bNoise) |
650adfd2 | 766 | do_samples_noise(ch, ns_from, ns_to); |
3154bfab | 767 | else if(s_chan[ch].bFMod==2 || (s_chan[ch].bFMod==0 && spu_config.iUseInterpolation==0)) |
650adfd2 | 768 | do_samples_noint(ch, ns_from, ns_to); |
3154bfab | 769 | else if(s_chan[ch].bFMod==0 && spu_config.iUseInterpolation==1) |
650adfd2 | 770 | do_samples_simple(ch, ns_from, ns_to); |
07a6dd2c | 771 | else |
650adfd2 | 772 | do_samples_default(ch, ns_from, ns_to); |
773 | ||
e391d21c | 774 | ns_len = ns_to - ns_from; |
ef79bbde | 775 | |
1ab7621a | 776 | MixADSR(ch, ns_from, ns_to); |
777 | ||
b72f17a1 | 778 | if(ch==1 || ch==3) |
779 | { | |
e391d21c | 780 | do_decode_bufs(ch/2, ns_from, ns_len); |
3154bfab | 781 | spu.decode_dirty_ch |= 1<<ch; |
b72f17a1 | 782 | } |
783 | ||
1ab7621a | 784 | if(s_chan[ch].bFMod==2) // fmod freq channel |
e391d21c | 785 | memcpy(&iFMod[ns_from], &ChanBuf[ns_from], ns_len * sizeof(iFMod[0])); |
786 | if(s_chan[ch].bRVBActive) | |
3154bfab | 787 | mix_chan_rvb(ns_from, ns_len, s_chan[ch].iLeftVolume, s_chan[ch].iRightVolume, spu.sRVBStart); |
1775933a | 788 | else |
e391d21c | 789 | mix_chan(ns_from, ns_len, s_chan[ch].iLeftVolume, s_chan[ch].iRightVolume); |
ef79bbde P |
790 | } |
791 | } | |
792 | ||
78c60846 | 793 | // advance "stopped" channels that can cause irqs |
794 | // (all chans are always playing on the real thing..) | |
3154bfab | 795 | if(spu.spuCtrl&CTRL_IRQ) |
78c60846 | 796 | for(ch=0;ch<MAXCHAN;ch++) |
797 | { | |
174c454a | 798 | if(!(silentch&(1<<ch))) continue; // already handled |
3154bfab | 799 | if(spu.dwChannelDead&(1<<ch)) continue; |
800 | if(s_chan[ch].pCurr > spu.pSpuIrq && s_chan[ch].pLoop > spu.pSpuIrq) | |
78c60846 | 801 | continue; |
802 | ||
f2aec10a | 803 | s_chan[ch].spos += s_chan[ch].sinc * (ns_to - ns_from); |
78c60846 | 804 | while(s_chan[ch].spos >= 28 * 0x10000) |
805 | { | |
7e44d49d | 806 | unsigned char *start = s_chan[ch].pCurr; |
78c60846 | 807 | |
fb552464 | 808 | skip_block(ch); |
3154bfab | 809 | if(start == s_chan[ch].pCurr || start - spu.spuMemC < 0x1000) |
78c60846 | 810 | { |
f9fe4923 | 811 | // looping on self or stopped(?) |
3154bfab | 812 | spu.dwChannelDead |= 1<<ch; |
7e44d49d | 813 | s_chan[ch].spos = 0; |
78c60846 | 814 | break; |
815 | } | |
816 | ||
78c60846 | 817 | s_chan[ch].spos -= 28 * 0x10000; |
818 | } | |
819 | } | |
820 | ||
3154bfab | 821 | if(unlikely(silentch & spu.decode_dirty_ch & (1<<1))) // must clear silent channel decode buffers |
b72f17a1 | 822 | { |
3154bfab | 823 | memset(&spu.spuMem[0x800/2], 0, 0x400); |
824 | spu.decode_dirty_ch &= ~(1<<1); | |
b72f17a1 | 825 | } |
3154bfab | 826 | if(unlikely(silentch & spu.decode_dirty_ch & (1<<3))) |
b72f17a1 | 827 | { |
3154bfab | 828 | memset(&spu.spuMem[0xc00/2], 0, 0x400); |
829 | spu.decode_dirty_ch &= ~(1<<3); | |
b72f17a1 | 830 | } |
8680e822 | 831 | |
ef79bbde P |
832 | //---------------------------------------------------// |
833 | // mix XA infos (if any) | |
834 | ||
650adfd2 | 835 | MixXA(ns_to); |
ef79bbde P |
836 | |
837 | /////////////////////////////////////////////////////// | |
838 | // mix all channels (including reverb) into one buffer | |
839 | ||
3154bfab | 840 | if(spu_config.iUseReverb) |
650adfd2 | 841 | REVERBDo(ns_to); |
1775933a | 842 | |
3154bfab | 843 | if((spu.spuCtrl&0x4000)==0) // muted? (rare, don't optimize for this) |
1775933a | 844 | { |
3154bfab | 845 | memset(spu.pS, 0, ns_to * 2 * sizeof(spu.pS[0])); |
846 | spu.pS += ns_to * 2; | |
1775933a | 847 | } |
848 | else | |
650adfd2 | 849 | for (ns = 0; ns < ns_to * 2; ) |
ef79bbde | 850 | { |
9e7a7352 | 851 | d = SSumLR[ns]; SSumLR[ns] = 0; |
852 | d = d * volmult >> 10; | |
1775933a | 853 | ssat32_to_16(d); |
3154bfab | 854 | *spu.pS++ = d; |
97ea4077 | 855 | ns++; |
ef79bbde | 856 | |
9e7a7352 | 857 | d = SSumLR[ns]; SSumLR[ns] = 0; |
858 | d = d * volmult >> 10; | |
1775933a | 859 | ssat32_to_16(d); |
3154bfab | 860 | *spu.pS++ = d; |
97ea4077 | 861 | ns++; |
ef79bbde P |
862 | } |
863 | ||
3154bfab | 864 | spu.cycles_played += ns_to * 768; |
16187bfb | 865 | |
3154bfab | 866 | spu.decode_pos = (spu.decode_pos + ns_to) & 0x1ff; |
650adfd2 | 867 | } |
868 | } | |
ef79bbde | 869 | |
650adfd2 | 870 | void schedule_next_irq(void) |
871 | { | |
872 | unsigned int upd_samples; | |
873 | int ch; | |
ef79bbde | 874 | |
3154bfab | 875 | if (spu.scheduleCallback == NULL) |
650adfd2 | 876 | return; |
e34a4bd3 | 877 | |
650adfd2 | 878 | upd_samples = 44100 / 50; |
e34a4bd3 | 879 | |
650adfd2 | 880 | for (ch = 0; ch < MAXCHAN; ch++) |
881 | { | |
3154bfab | 882 | if (spu.dwChannelDead & (1 << ch)) |
650adfd2 | 883 | continue; |
3154bfab | 884 | if ((unsigned long)(spu.pSpuIrq - s_chan[ch].pCurr) > IRQ_NEAR_BLOCKS * 16 |
885 | && (unsigned long)(spu.pSpuIrq - s_chan[ch].pLoop) > IRQ_NEAR_BLOCKS * 16) | |
650adfd2 | 886 | continue; |
16187bfb | 887 | |
650adfd2 | 888 | scan_for_irq(ch, &upd_samples); |
ef79bbde P |
889 | } |
890 | ||
3154bfab | 891 | if (unlikely(spu.pSpuIrq < spu.spuMemC + 0x1000)) |
650adfd2 | 892 | { |
3154bfab | 893 | int irq_pos = (spu.pSpuIrq - spu.spuMemC) / 2 & 0x1ff; |
894 | int left = (irq_pos - spu.decode_pos) & 0x1ff; | |
650adfd2 | 895 | if (0 < left && left < upd_samples) { |
3154bfab | 896 | //xprintf("decode: %3d (%3d/%3d)\n", left, spu.decode_pos, irq_pos); |
650adfd2 | 897 | upd_samples = left; |
898 | } | |
899 | } | |
16187bfb | 900 | |
650adfd2 | 901 | if (upd_samples < 44100 / 50) |
3154bfab | 902 | spu.scheduleCallback(upd_samples * 768); |
ef79bbde P |
903 | } |
904 | ||
905 | // SPU ASYNC... even newer epsxe func | |
906 | // 1 time every 'cycle' cycles... harhar | |
907 | ||
650adfd2 | 908 | // rearmed: called dynamically now |
554a2220 | 909 | |
650adfd2 | 910 | void CALLBACK SPUasync(unsigned int cycle, unsigned int flags) |
ef79bbde | 911 | { |
650adfd2 | 912 | do_samples(cycle); |
fb552464 | 913 | |
3154bfab | 914 | if (spu.spuCtrl & CTRL_IRQ) |
650adfd2 | 915 | schedule_next_irq(); |
f8edb5bc | 916 | |
650adfd2 | 917 | if (flags & 1) { |
3154bfab | 918 | out_current->feed(spu.pSpuBuffer, (unsigned char *)spu.pS - spu.pSpuBuffer); |
919 | spu.pS = (short *)spu.pSpuBuffer; | |
fb552464 | 920 | |
3154bfab | 921 | if (spu_config.iTempo) { |
650adfd2 | 922 | if (!out_current->busy()) |
923 | // cause more samples to be generated | |
924 | // (and break some games because of bad sync) | |
3154bfab | 925 | spu.cycles_played -= 44100 / 60 / 2 * 768; |
ef79bbde | 926 | } |
650adfd2 | 927 | } |
ef79bbde P |
928 | } |
929 | ||
930 | // SPU UPDATE... new epsxe func | |
931 | // 1 time every 32 hsync lines | |
932 | // (312/32)x50 in pal | |
933 | // (262/32)x60 in ntsc | |
934 | ||
935 | // since epsxe 1.5.2 (linux) uses SPUupdate, not SPUasync, I will | |
936 | // leave that func in the linux port, until epsxe linux is using | |
937 | // the async function as well | |
938 | ||
939 | void CALLBACK SPUupdate(void) | |
940 | { | |
ef79bbde P |
941 | } |
942 | ||
943 | // XA AUDIO | |
944 | ||
945 | void CALLBACK SPUplayADPCMchannel(xa_decode_t *xap) | |
946 | { | |
947 | if(!xap) return; | |
948 | if(!xap->freq) return; // no xa freq ? bye | |
949 | ||
950 | FeedXA(xap); // call main XA feeder | |
951 | } | |
952 | ||
953 | // CDDA AUDIO | |
983a7cfd | 954 | int CALLBACK SPUplayCDDAchannel(short *pcm, int nbytes) |
ef79bbde | 955 | { |
983a7cfd | 956 | if (!pcm) return -1; |
957 | if (nbytes<=0) return -1; | |
ef79bbde | 958 | |
983a7cfd | 959 | return FeedCDDA((unsigned char *)pcm, nbytes); |
ef79bbde P |
960 | } |
961 | ||
6d75977b | 962 | // to be called after state load |
963 | void ClearWorkingState(void) | |
ef79bbde | 964 | { |
97ea4077 | 965 | memset(SSumLR,0,sizeof(SSumLR)); // init some mixing buffers |
6d75977b | 966 | memset(iFMod,0,sizeof(iFMod)); |
3154bfab | 967 | spu.pS=(short *)spu.pSpuBuffer; // setup soundbuffer pointer |
ef79bbde P |
968 | } |
969 | ||
970 | // SETUPSTREAMS: init most of the spu buffers | |
971 | void SetupStreams(void) | |
972 | { | |
973 | int i; | |
974 | ||
3154bfab | 975 | spu.pSpuBuffer = (unsigned char *)malloc(32768); // alloc mixing buffer |
976 | spu.sRVBStart = (int *)malloc(NSSIZE*2*4); // alloc reverb buffer | |
977 | memset(spu.sRVBStart,0,NSSIZE*2*4); | |
ef79bbde | 978 | |
3154bfab | 979 | spu.XAStart = // alloc xa buffer |
ef79bbde | 980 | (uint32_t *)malloc(44100 * sizeof(uint32_t)); |
3154bfab | 981 | spu.XAEnd = spu.XAStart + 44100; |
982 | spu.XAPlay = spu.XAStart; | |
983 | spu.XAFeed = spu.XAStart; | |
ef79bbde | 984 | |
3154bfab | 985 | spu.CDDAStart = // alloc cdda buffer |
983a7cfd | 986 | (uint32_t *)malloc(CDDA_BUFFER_SIZE); |
3154bfab | 987 | spu.CDDAEnd = spu.CDDAStart + 16384; |
988 | spu.CDDAPlay = spu.CDDAStart; | |
989 | spu.CDDAFeed = spu.CDDAStart; | |
ef79bbde P |
990 | |
991 | for(i=0;i<MAXCHAN;i++) // loop sound channels | |
992 | { | |
6d866bb7 | 993 | s_chan[i].ADSRX.SustainLevel = 0xf; // -> init sustain |
650adfd2 | 994 | s_chan[i].ADSRX.SustainIncrease = 1; |
3154bfab | 995 | s_chan[i].pLoop=spu.spuMemC; |
996 | s_chan[i].pCurr=spu.spuMemC; | |
ef79bbde P |
997 | } |
998 | ||
6d75977b | 999 | ClearWorkingState(); |
1000 | ||
3154bfab | 1001 | spu.bSpuInit=1; // flag: we are inited |
ef79bbde P |
1002 | } |
1003 | ||
1004 | // REMOVESTREAMS: free most buffer | |
1005 | void RemoveStreams(void) | |
1006 | { | |
3154bfab | 1007 | free(spu.pSpuBuffer); // free mixing buffer |
1008 | spu.pSpuBuffer = NULL; | |
1009 | free(spu.sRVBStart); // free reverb buffer | |
1010 | spu.sRVBStart = NULL; | |
1011 | free(spu.XAStart); // free XA buffer | |
1012 | spu.XAStart = NULL; | |
1013 | free(spu.CDDAStart); // free CDDA buffer | |
1014 | spu.CDDAStart = NULL; | |
ef79bbde P |
1015 | } |
1016 | ||
1017 | // INIT/EXIT STUFF | |
1018 | ||
1019 | // SPUINIT: this func will be called first by the main emu | |
1020 | long CALLBACK SPUinit(void) | |
1021 | { | |
3154bfab | 1022 | spu.spuMemC = (unsigned char *)spu.spuMem; // just small setup |
ef79bbde P |
1023 | memset((void *)&rvb, 0, sizeof(REVERBInfo)); |
1024 | InitADSR(); | |
1025 | ||
3154bfab | 1026 | spu.spuAddr = 0xffffffff; |
1027 | spu.decode_pos = 0; | |
1028 | memset((void *)s_chan, 0, sizeof(s_chan)); | |
c4c66b22 | 1029 | spu.pSpuIrq = spu.spuMemC; |
ef79bbde | 1030 | |
ef79bbde P |
1031 | SetupStreams(); // prepare streaming |
1032 | ||
3154bfab | 1033 | if (spu_config.iVolume == 0) |
1034 | spu_config.iVolume = 768; // 1024 is 1.0 | |
1035 | ||
ef79bbde P |
1036 | return 0; |
1037 | } | |
1038 | ||
1039 | // SPUOPEN: called by main emu after init | |
1040 | long CALLBACK SPUopen(void) | |
1041 | { | |
3154bfab | 1042 | if (spu.bSPUIsOpen) return 0; // security for some stupid main emus |
ef79bbde P |
1043 | |
1044 | SetupSound(); // setup sound (before init!) | |
ef79bbde | 1045 | |
3154bfab | 1046 | spu.bSPUIsOpen = 1; |
ef79bbde P |
1047 | |
1048 | return PSE_SPU_ERR_SUCCESS; | |
1049 | } | |
1050 | ||
1051 | // SPUCLOSE: called before shutdown | |
1052 | long CALLBACK SPUclose(void) | |
1053 | { | |
3154bfab | 1054 | if (!spu.bSPUIsOpen) return 0; // some security |
ef79bbde | 1055 | |
3154bfab | 1056 | spu.bSPUIsOpen = 0; // no more open |
ef79bbde | 1057 | |
07c13dfd | 1058 | out_current->finish(); // no more sound handling |
ef79bbde P |
1059 | |
1060 | return 0; | |
1061 | } | |
1062 | ||
1063 | // SPUSHUTDOWN: called by main emu on final exit | |
1064 | long CALLBACK SPUshutdown(void) | |
1065 | { | |
1066 | SPUclose(); | |
1067 | RemoveStreams(); // no more streaming | |
3154bfab | 1068 | spu.bSpuInit=0; |
ef79bbde P |
1069 | |
1070 | return 0; | |
1071 | } | |
1072 | ||
1073 | // SPUTEST: we don't test, we are always fine ;) | |
1074 | long CALLBACK SPUtest(void) | |
1075 | { | |
1076 | return 0; | |
1077 | } | |
1078 | ||
1079 | // SPUCONFIGURE: call config dialog | |
1080 | long CALLBACK SPUconfigure(void) | |
1081 | { | |
1082 | #ifdef _MACOSX | |
1083 | DoConfiguration(); | |
1084 | #else | |
ee849648 | 1085 | // StartCfgTool("CFG"); |
ef79bbde P |
1086 | #endif |
1087 | return 0; | |
1088 | } | |
1089 | ||
1090 | // SPUABOUT: show about window | |
1091 | void CALLBACK SPUabout(void) | |
1092 | { | |
1093 | #ifdef _MACOSX | |
1094 | DoAbout(); | |
1095 | #else | |
ee849648 | 1096 | // StartCfgTool("ABOUT"); |
ef79bbde P |
1097 | #endif |
1098 | } | |
1099 | ||
1100 | // SETUP CALLBACKS | |
1101 | // this functions will be called once, | |
1102 | // passes a callback that should be called on SPU-IRQ/cdda volume change | |
1103 | void CALLBACK SPUregisterCallback(void (CALLBACK *callback)(void)) | |
1104 | { | |
3154bfab | 1105 | spu.irqCallback = callback; |
ef79bbde P |
1106 | } |
1107 | ||
1108 | void CALLBACK SPUregisterCDDAVolume(void (CALLBACK *CDDAVcallback)(unsigned short,unsigned short)) | |
1109 | { | |
3154bfab | 1110 | spu.cddavCallback = CDDAVcallback; |
ef79bbde P |
1111 | } |
1112 | ||
2b30c129 | 1113 | void CALLBACK SPUregisterScheduleCb(void (CALLBACK *callback)(unsigned int)) |
1114 | { | |
3154bfab | 1115 | spu.scheduleCallback = callback; |
2b30c129 | 1116 | } |
1117 | ||
ef79bbde | 1118 | // COMMON PLUGIN INFO FUNCS |
e906c010 | 1119 | /* |
ef79bbde P |
1120 | char * CALLBACK PSEgetLibName(void) |
1121 | { | |
1122 | return _(libraryName); | |
1123 | } | |
1124 | ||
1125 | unsigned long CALLBACK PSEgetLibType(void) | |
1126 | { | |
1127 | return PSE_LT_SPU; | |
1128 | } | |
1129 | ||
1130 | unsigned long CALLBACK PSEgetLibVersion(void) | |
1131 | { | |
1132 | return (1 << 16) | (6 << 8); | |
1133 | } | |
1134 | ||
1135 | char * SPUgetLibInfos(void) | |
1136 | { | |
1137 | return _(libraryInfo); | |
1138 | } | |
e906c010 | 1139 | */ |
6d866bb7 | 1140 | |
90f1d26c | 1141 | // debug |
174c454a | 1142 | void spu_get_debug_info(int *chans_out, int *run_chans, int *fmod_chans_out, int *noise_chans_out) |
90f1d26c | 1143 | { |
174c454a | 1144 | int ch = 0, fmod_chans = 0, noise_chans = 0, irq_chans = 0; |
90f1d26c | 1145 | |
1146 | for(;ch<MAXCHAN;ch++) | |
1147 | { | |
3154bfab | 1148 | if (!(spu.dwChannelOn & (1<<ch))) |
90f1d26c | 1149 | continue; |
1150 | if (s_chan[ch].bFMod == 2) | |
1151 | fmod_chans |= 1 << ch; | |
1152 | if (s_chan[ch].bNoise) | |
1153 | noise_chans |= 1 << ch; | |
3154bfab | 1154 | if((spu.spuCtrl&CTRL_IRQ) && s_chan[ch].pCurr <= spu.pSpuIrq && s_chan[ch].pLoop <= spu.pSpuIrq) |
174c454a | 1155 | irq_chans |= 1 << ch; |
90f1d26c | 1156 | } |
1157 | ||
3154bfab | 1158 | *chans_out = spu.dwChannelOn; |
1159 | *run_chans = ~spu.dwChannelOn & ~spu.dwChannelDead & irq_chans; | |
90f1d26c | 1160 | *fmod_chans_out = fmod_chans; |
1161 | *noise_chans_out = noise_chans; | |
1162 | } | |
1163 | ||
6d866bb7 | 1164 | // vim:shiftwidth=1:expandtab |