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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 | ||
003cfc63 | 21 | #ifndef _WIN32 |
22 | #include <sys/time.h> // gettimeofday in xa.c | |
23 | #endif | |
ef79bbde P |
24 | #include "stdafx.h" |
25 | ||
26 | #define _IN_SPU | |
27 | ||
28 | #include "externals.h" | |
3fc2a4c2 | 29 | #include "registers.h" |
07c13dfd | 30 | #include "out.h" |
665f33e1 | 31 | #include "arm_features.h" |
3154bfab | 32 | #include "spu_config.h" |
ef79bbde | 33 | |
a80ae4a0 | 34 | #ifdef __ARM_ARCH_7A__ |
1775933a | 35 | #define ssat32_to_16(v) \ |
36 | asm("ssat %0,#16,%1" : "=r" (v) : "r" (v)) | |
37 | #else | |
38 | #define ssat32_to_16(v) do { \ | |
39 | if (v < -32768) v = -32768; \ | |
40 | else if (v > 32767) v = 32767; \ | |
41 | } while (0) | |
42 | #endif | |
43 | ||
fb552464 | 44 | #define PSXCLK 33868800 /* 33.8688 MHz */ |
45 | ||
650adfd2 | 46 | // intended to be ~1 frame |
47 | #define IRQ_NEAR_BLOCKS 32 | |
48 | ||
6d866bb7 | 49 | /* |
ef79bbde P |
50 | #if defined (USEMACOSX) |
51 | static char * libraryName = N_("Mac OS X Sound"); | |
52 | #elif defined (USEALSA) | |
53 | static char * libraryName = N_("ALSA Sound"); | |
54 | #elif defined (USEOSS) | |
55 | static char * libraryName = N_("OSS Sound"); | |
56 | #elif defined (USESDL) | |
57 | static char * libraryName = N_("SDL Sound"); | |
58 | #elif defined (USEPULSEAUDIO) | |
59 | static char * libraryName = N_("PulseAudio Sound"); | |
60 | #else | |
61 | static char * libraryName = N_("NULL Sound"); | |
62 | #endif | |
63 | ||
64 | 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 | 65 | */ |
ef79bbde P |
66 | |
67 | // globals | |
68 | ||
3154bfab | 69 | SPUInfo spu; |
70 | SPUConfig spu_config; | |
ef79bbde P |
71 | |
72 | // MAIN infos struct for each channel | |
73 | ||
74 | SPUCHAN s_chan[MAXCHAN+1]; // channel + 1 infos (1 is security for fmod handling) | |
75 | REVERBInfo rvb; | |
76 | ||
ef79bbde P |
77 | // certain globals (were local before, but with the new timeproc I need em global) |
78 | ||
6d866bb7 | 79 | static const int f[8][2] = { { 0, 0 }, |
ef79bbde P |
80 | { 60, 0 }, |
81 | { 115, -52 }, | |
82 | { 98, -55 }, | |
83 | { 122, -60 } }; | |
3154bfab | 84 | int ChanBuf[NSSIZE]; |
85 | int SSumLR[NSSIZE*2]; | |
ef79bbde | 86 | int iFMod[NSSIZE]; |
ef79bbde | 87 | |
983a7cfd | 88 | #define CDDA_BUFFER_SIZE (16384 * sizeof(uint32_t)) // must be power of 2 |
89 | ||
ef79bbde P |
90 | //////////////////////////////////////////////////////////////////////// |
91 | // CODE AREA | |
92 | //////////////////////////////////////////////////////////////////////// | |
93 | ||
94 | // dirty inline func includes | |
95 | ||
96 | #include "reverb.c" | |
97 | #include "adsr.c" | |
98 | ||
99 | //////////////////////////////////////////////////////////////////////// | |
100 | // helpers for simple interpolation | |
101 | ||
102 | // | |
103 | // easy interpolation on upsampling, no special filter, just "Pete's common sense" tm | |
104 | // | |
105 | // instead of having n equal sample values in a row like: | |
106 | // ____ | |
107 | // |____ | |
108 | // | |
109 | // we compare the current delta change with the next delta change. | |
110 | // | |
111 | // if curr_delta is positive, | |
112 | // | |
113 | // - and next delta is smaller (or changing direction): | |
114 | // \. | |
115 | // -__ | |
116 | // | |
117 | // - and next delta significant (at least twice) bigger: | |
118 | // --_ | |
119 | // \. | |
120 | // | |
121 | // - and next delta is nearly same: | |
122 | // \. | |
123 | // \. | |
124 | // | |
125 | // | |
126 | // if curr_delta is negative, | |
127 | // | |
128 | // - and next delta is smaller (or changing direction): | |
129 | // _-- | |
130 | // / | |
131 | // | |
132 | // - and next delta significant (at least twice) bigger: | |
133 | // / | |
134 | // __- | |
135 | // | |
136 | // - and next delta is nearly same: | |
137 | // / | |
138 | // / | |
139 | // | |
140 | ||
011755d7 | 141 | static void InterpolateUp(int *SB, int sinc) |
ef79bbde | 142 | { |
011755d7 | 143 | if(SB[32]==1) // flag == 1? calc step and set flag... and don't change the value in this pass |
ef79bbde | 144 | { |
011755d7 | 145 | const int id1=SB[30]-SB[29]; // curr delta to next val |
146 | const int id2=SB[31]-SB[30]; // and next delta to next-next val :) | |
ef79bbde | 147 | |
011755d7 | 148 | SB[32]=0; |
ef79bbde P |
149 | |
150 | if(id1>0) // curr delta positive | |
151 | { | |
152 | if(id2<id1) | |
011755d7 | 153 | {SB[28]=id1;SB[32]=2;} |
ef79bbde P |
154 | else |
155 | if(id2<(id1<<1)) | |
011755d7 | 156 | SB[28]=(id1*sinc)>>16; |
ef79bbde | 157 | else |
011755d7 | 158 | SB[28]=(id1*sinc)>>17; |
ef79bbde P |
159 | } |
160 | else // curr delta negative | |
161 | { | |
162 | if(id2>id1) | |
011755d7 | 163 | {SB[28]=id1;SB[32]=2;} |
ef79bbde P |
164 | else |
165 | if(id2>(id1<<1)) | |
011755d7 | 166 | SB[28]=(id1*sinc)>>16; |
ef79bbde | 167 | else |
011755d7 | 168 | SB[28]=(id1*sinc)>>17; |
ef79bbde P |
169 | } |
170 | } | |
171 | else | |
011755d7 | 172 | if(SB[32]==2) // flag 1: calc step and set flag... and don't change the value in this pass |
ef79bbde | 173 | { |
011755d7 | 174 | SB[32]=0; |
ef79bbde | 175 | |
011755d7 | 176 | SB[28]=(SB[28]*sinc)>>17; |
177 | //if(sinc<=0x8000) | |
178 | // SB[29]=SB[30]-(SB[28]*((0x10000/sinc)-1)); | |
76d1d09c | 179 | //else |
011755d7 | 180 | SB[29]+=SB[28]; |
ef79bbde P |
181 | } |
182 | else // no flags? add bigger val (if possible), calc smaller step, set flag1 | |
011755d7 | 183 | SB[29]+=SB[28]; |
ef79bbde P |
184 | } |
185 | ||
186 | // | |
187 | // even easier interpolation on downsampling, also no special filter, again just "Pete's common sense" tm | |
188 | // | |
189 | ||
011755d7 | 190 | static void InterpolateDown(int *SB, int sinc) |
ef79bbde | 191 | { |
011755d7 | 192 | if(sinc>=0x20000L) // we would skip at least one val? |
ef79bbde | 193 | { |
011755d7 | 194 | SB[29]+=(SB[30]-SB[29])/2; // add easy weight |
195 | if(sinc>=0x30000L) // we would skip even more vals? | |
196 | SB[29]+=(SB[31]-SB[30])/2; // add additional next weight | |
ef79bbde P |
197 | } |
198 | } | |
199 | ||
200 | //////////////////////////////////////////////////////////////////////// | |
201 | // helpers for gauss interpolation | |
202 | ||
011755d7 | 203 | #define gval0 (((short*)(&SB[29]))[gpos&3]) |
204 | #define gval(x) ((int)((short*)(&SB[29]))[(gpos+x)&3]) | |
ef79bbde P |
205 | |
206 | #include "gauss_i.h" | |
207 | ||
208 | //////////////////////////////////////////////////////////////////////// | |
209 | ||
210 | #include "xa.c" | |
211 | ||
e4f075af | 212 | static void do_irq(void) |
213 | { | |
3154bfab | 214 | //if(!(spu.spuStat & STAT_IRQ)) |
e4f075af | 215 | { |
3154bfab | 216 | spu.spuStat |= STAT_IRQ; // asserted status? |
217 | if(spu.irqCallback) spu.irqCallback(); | |
e4f075af | 218 | } |
219 | } | |
220 | ||
221 | static int check_irq(int ch, unsigned char *pos) | |
222 | { | |
3154bfab | 223 | if((spu.spuCtrl & CTRL_IRQ) && pos == spu.pSpuIrq) |
e4f075af | 224 | { |
3154bfab | 225 | //printf("ch%d irq %04x\n", ch, pos - spu.spuMemC); |
e4f075af | 226 | do_irq(); |
227 | return 1; | |
228 | } | |
229 | return 0; | |
230 | } | |
231 | ||
ef79bbde P |
232 | //////////////////////////////////////////////////////////////////////// |
233 | // START SOUND... called by main thread to setup a new sound on a channel | |
234 | //////////////////////////////////////////////////////////////////////// | |
235 | ||
236 | INLINE void StartSound(int ch) | |
237 | { | |
238 | StartADSR(ch); | |
239 | StartREVERB(ch); | |
240 | ||
b00afb77 | 241 | // fussy timing issues - do in VoiceOn |
242 | //s_chan[ch].pCurr=s_chan[ch].pStart; // set sample start | |
243 | //s_chan[ch].bStop=0; | |
244 | //s_chan[ch].bOn=1; | |
ef79bbde | 245 | |
381ea103 | 246 | s_chan[ch].SB[26]=0; // init mixing vars |
247 | s_chan[ch].SB[27]=0; | |
bdd050c3 | 248 | s_chan[ch].iSBPos=27; |
ef79bbde | 249 | |
bdd050c3 | 250 | s_chan[ch].SB[28]=0; |
ef79bbde P |
251 | s_chan[ch].SB[29]=0; // init our interpolation helpers |
252 | s_chan[ch].SB[30]=0; | |
bdd050c3 | 253 | s_chan[ch].SB[31]=0; |
254 | s_chan[ch].spos=0; | |
ef79bbde | 255 | |
3154bfab | 256 | spu.dwNewChannel&=~(1<<ch); // clear new channel bit |
ef79bbde P |
257 | } |
258 | ||
259 | //////////////////////////////////////////////////////////////////////// | |
260 | // ALL KIND OF HELPERS | |
261 | //////////////////////////////////////////////////////////////////////// | |
262 | ||
011755d7 | 263 | INLINE int FModChangeFrequency(int *SB, int pitch, int ns) |
ef79bbde | 264 | { |
011755d7 | 265 | unsigned int NP=pitch; |
07a6dd2c | 266 | int sinc; |
ef79bbde | 267 | |
011755d7 | 268 | NP=((32768L+iFMod[ns])*NP)>>15; |
ef79bbde P |
269 | |
270 | if(NP>0x3fff) NP=0x3fff; | |
271 | if(NP<0x1) NP=0x1; | |
272 | ||
7e44d49d | 273 | sinc=NP<<4; // calc frequency |
3154bfab | 274 | if(spu_config.iUseInterpolation==1) // freq change in simple interpolation mode |
011755d7 | 275 | SB[32]=1; |
ef79bbde | 276 | iFMod[ns]=0; |
07a6dd2c | 277 | |
278 | return sinc; | |
ef79bbde P |
279 | } |
280 | ||
281 | //////////////////////////////////////////////////////////////////////// | |
282 | ||
011755d7 | 283 | INLINE void StoreInterpolationVal(int *SB, int sinc, int fa, int fmod_freq) |
ef79bbde | 284 | { |
011755d7 | 285 | if(fmod_freq) // fmod freq channel |
286 | SB[29]=fa; | |
ef79bbde P |
287 | else |
288 | { | |
381ea103 | 289 | ssat32_to_16(fa); |
ef79bbde | 290 | |
3154bfab | 291 | if(spu_config.iUseInterpolation>=2) // gauss/cubic interpolation |
011755d7 | 292 | { |
293 | int gpos = SB[28]; | |
294 | gval0 = fa; | |
ef79bbde | 295 | gpos = (gpos+1) & 3; |
011755d7 | 296 | SB[28] = gpos; |
ef79bbde P |
297 | } |
298 | else | |
3154bfab | 299 | if(spu_config.iUseInterpolation==1) // simple interpolation |
ef79bbde | 300 | { |
011755d7 | 301 | SB[28] = 0; |
302 | SB[29] = 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' | |
303 | SB[30] = SB[31]; | |
304 | SB[31] = fa; | |
305 | SB[32] = 1; // -> flag: calc new interolation | |
ef79bbde | 306 | } |
011755d7 | 307 | else SB[29]=fa; // no interpolation |
ef79bbde P |
308 | } |
309 | } | |
310 | ||
311 | //////////////////////////////////////////////////////////////////////// | |
312 | ||
011755d7 | 313 | INLINE int iGetInterpolationVal(int *SB, int sinc, int spos, int fmod_freq) |
ef79bbde P |
314 | { |
315 | int fa; | |
316 | ||
011755d7 | 317 | if(fmod_freq) return SB[29]; |
ef79bbde | 318 | |
3154bfab | 319 | switch(spu_config.iUseInterpolation) |
011755d7 | 320 | { |
ef79bbde P |
321 | //--------------------------------------------------// |
322 | case 3: // cubic interpolation | |
323 | { | |
324 | long xd;int gpos; | |
8cd23d6d | 325 | xd = (spos >> 1)+1; |
011755d7 | 326 | gpos = SB[28]; |
ef79bbde P |
327 | |
328 | fa = gval(3) - 3*gval(2) + 3*gval(1) - gval0; | |
329 | fa *= (xd - (2<<15)) / 6; | |
330 | fa >>= 15; | |
331 | fa += gval(2) - gval(1) - gval(1) + gval0; | |
332 | fa *= (xd - (1<<15)) >> 1; | |
333 | fa >>= 15; | |
334 | fa += gval(1) - gval0; | |
335 | fa *= xd; | |
336 | fa >>= 15; | |
337 | fa = fa + gval0; | |
338 | ||
339 | } break; | |
340 | //--------------------------------------------------// | |
341 | case 2: // gauss interpolation | |
342 | { | |
343 | int vl, vr;int gpos; | |
8cd23d6d | 344 | vl = (spos >> 6) & ~3; |
011755d7 | 345 | gpos = SB[28]; |
f05d6ca2 | 346 | vr=(gauss[vl]*(int)gval0)&~2047; |
ef79bbde P |
347 | vr+=(gauss[vl+1]*gval(1))&~2047; |
348 | vr+=(gauss[vl+2]*gval(2))&~2047; | |
349 | vr+=(gauss[vl+3]*gval(3))&~2047; | |
350 | fa = vr>>11; | |
351 | } break; | |
352 | //--------------------------------------------------// | |
353 | case 1: // simple interpolation | |
354 | { | |
011755d7 | 355 | if(sinc<0x10000L) // -> upsampling? |
356 | InterpolateUp(SB, sinc); // --> interpolate up | |
357 | else InterpolateDown(SB, sinc); // --> else down | |
358 | fa=SB[29]; | |
ef79bbde P |
359 | } break; |
360 | //--------------------------------------------------// | |
361 | default: // no interpolation | |
362 | { | |
011755d7 | 363 | fa=SB[29]; |
ef79bbde P |
364 | } break; |
365 | //--------------------------------------------------// | |
366 | } | |
367 | ||
368 | return fa; | |
369 | } | |
370 | ||
381ea103 | 371 | static void decode_block_data(int *dest, const unsigned char *src, int predict_nr, int shift_factor) |
372 | { | |
373 | int nSample; | |
374 | int fa, s_1, s_2, d, s; | |
375 | ||
376 | s_1 = dest[27]; | |
377 | s_2 = dest[26]; | |
378 | ||
379 | for (nSample = 0; nSample < 28; src++) | |
380 | { | |
381 | d = (int)*src; | |
382 | s = (int)(signed short)((d & 0x0f) << 12); | |
383 | ||
384 | fa = s >> shift_factor; | |
385 | fa += ((s_1 * f[predict_nr][0])>>6) + ((s_2 * f[predict_nr][1])>>6); | |
386 | s_2=s_1;s_1=fa; | |
387 | ||
388 | dest[nSample++] = fa; | |
389 | ||
390 | s = (int)(signed short)((d & 0xf0) << 8); | |
391 | fa = s >> shift_factor; | |
392 | fa += ((s_1 * f[predict_nr][0])>>6) + ((s_2 * f[predict_nr][1])>>6); | |
393 | s_2=s_1;s_1=fa; | |
394 | ||
395 | dest[nSample++] = fa; | |
396 | } | |
397 | } | |
398 | ||
011755d7 | 399 | static int decode_block(int ch, int *SB) |
e11ae5c5 | 400 | { |
401 | unsigned char *start; | |
215ff9e6 | 402 | int predict_nr, shift_factor, flags; |
e11ae5c5 | 403 | int ret = 0; |
404 | ||
f9fe4923 | 405 | start = s_chan[ch].pCurr; // set up the current pos |
215ff9e6 | 406 | if (start == spu.spuMemC) // ? |
407 | ret = 1; | |
e11ae5c5 | 408 | |
215ff9e6 | 409 | if (s_chan[ch].prevflags & 1) // 1: stop/loop |
3fc2a4c2 | 410 | { |
215ff9e6 | 411 | if (!(s_chan[ch].prevflags & 2)) |
412 | ret = 1; | |
e4f075af | 413 | |
414 | start = s_chan[ch].pLoop; | |
3fc2a4c2 | 415 | } |
89cb2058 | 416 | else |
215ff9e6 | 417 | check_irq(ch, start); // hack, see check_irq below.. |
e11ae5c5 | 418 | |
215ff9e6 | 419 | predict_nr = (int)start[0]; |
420 | shift_factor = predict_nr & 0xf; | |
e11ae5c5 | 421 | predict_nr >>= 4; |
e11ae5c5 | 422 | |
011755d7 | 423 | decode_block_data(SB, start + 2, predict_nr, shift_factor); |
e11ae5c5 | 424 | |
215ff9e6 | 425 | flags = start[1]; |
426 | if (flags & 4) | |
427 | s_chan[ch].pLoop = start; // loop adress | |
e11ae5c5 | 428 | |
215ff9e6 | 429 | start += 16; |
3fc2a4c2 | 430 | |
215ff9e6 | 431 | if (flags & 1) { // 1: stop/loop |
3fc2a4c2 | 432 | start = s_chan[ch].pLoop; |
215ff9e6 | 433 | check_irq(ch, start); // hack.. :( |
89cb2058 | 434 | } |
e11ae5c5 | 435 | |
3154bfab | 436 | if (start - spu.spuMemC >= 0x80000) |
437 | start = spu.spuMemC; | |
e4f075af | 438 | |
381ea103 | 439 | s_chan[ch].pCurr = start; // store values for next cycle |
e4f075af | 440 | s_chan[ch].prevflags = flags; |
e11ae5c5 | 441 | |
442 | return ret; | |
443 | } | |
444 | ||
07a6dd2c | 445 | // do block, but ignore sample data |
446 | static int skip_block(int ch) | |
447 | { | |
448 | unsigned char *start = s_chan[ch].pCurr; | |
215ff9e6 | 449 | int flags; |
450 | int ret = 0; | |
451 | ||
452 | if (s_chan[ch].prevflags & 1) { | |
453 | if (!(s_chan[ch].prevflags & 2)) | |
454 | ret = 1; | |
07a6dd2c | 455 | |
e4f075af | 456 | start = s_chan[ch].pLoop; |
215ff9e6 | 457 | } |
458 | else | |
459 | check_irq(ch, start); | |
07a6dd2c | 460 | |
215ff9e6 | 461 | flags = start[1]; |
462 | if (flags & 4) | |
be1cb678 | 463 | s_chan[ch].pLoop = start; |
07a6dd2c | 464 | |
e4f075af | 465 | start += 16; |
07a6dd2c | 466 | |
215ff9e6 | 467 | if (flags & 1) { |
e4f075af | 468 | start = s_chan[ch].pLoop; |
215ff9e6 | 469 | check_irq(ch, start); |
470 | } | |
07a6dd2c | 471 | |
e4f075af | 472 | s_chan[ch].pCurr = start; |
473 | s_chan[ch].prevflags = flags; | |
474 | ||
89cb2058 | 475 | return ret; |
07a6dd2c | 476 | } |
477 | ||
650adfd2 | 478 | // if irq is going to trigger sooner than in upd_samples, set upd_samples |
479 | static void scan_for_irq(int ch, unsigned int *upd_samples) | |
480 | { | |
481 | int pos, sinc, sinc_inv, end; | |
482 | unsigned char *block; | |
483 | int flags; | |
484 | ||
485 | block = s_chan[ch].pCurr; | |
486 | pos = s_chan[ch].spos; | |
487 | sinc = s_chan[ch].sinc; | |
488 | end = pos + *upd_samples * sinc; | |
489 | ||
490 | pos += (28 - s_chan[ch].iSBPos) << 16; | |
491 | while (pos < end) | |
492 | { | |
3154bfab | 493 | if (block == spu.pSpuIrq) |
650adfd2 | 494 | break; |
495 | flags = block[1]; | |
496 | block += 16; | |
497 | if (flags & 1) { // 1: stop/loop | |
498 | block = s_chan[ch].pLoop; | |
3154bfab | 499 | if (block == spu.pSpuIrq) // hack.. (see decode_block) |
650adfd2 | 500 | break; |
501 | } | |
502 | pos += 28 << 16; | |
503 | } | |
504 | ||
505 | if (pos < end) | |
506 | { | |
507 | sinc_inv = s_chan[ch].sinc_inv; | |
508 | if (sinc_inv == 0) | |
509 | sinc_inv = s_chan[ch].sinc_inv = (0x80000000u / (uint32_t)sinc) << 1; | |
510 | ||
511 | pos -= s_chan[ch].spos; | |
512 | *upd_samples = (((uint64_t)pos * sinc_inv) >> 32) + 1; | |
513 | //xprintf("ch%02d: irq sched: %3d %03d\n", | |
514 | // ch, *upd_samples, *upd_samples * 60 * 263 / 44100); | |
515 | } | |
516 | } | |
517 | ||
07a6dd2c | 518 | #define make_do_samples(name, fmod_code, interp_start, interp1_code, interp2_code, interp_end) \ |
215ff9e6 | 519 | static noinline int do_samples_##name(int ch, int ns_to) \ |
07a6dd2c | 520 | { \ |
521 | int sinc = s_chan[ch].sinc; \ | |
522 | int spos = s_chan[ch].spos; \ | |
381ea103 | 523 | int sbpos = s_chan[ch].iSBPos; \ |
524 | int *SB = s_chan[ch].SB; \ | |
215ff9e6 | 525 | int ns, d, fa; \ |
526 | int ret = ns_to; \ | |
07a6dd2c | 527 | interp_start; \ |
528 | \ | |
215ff9e6 | 529 | for (ns = 0; ns < ns_to; ns++) \ |
07a6dd2c | 530 | { \ |
531 | fmod_code; \ | |
532 | \ | |
650adfd2 | 533 | spos += sinc; \ |
07a6dd2c | 534 | while (spos >= 0x10000) \ |
535 | { \ | |
650adfd2 | 536 | fa = SB[sbpos++]; \ |
215ff9e6 | 537 | if (sbpos >= 28) \ |
07a6dd2c | 538 | { \ |
381ea103 | 539 | sbpos = 0; \ |
011755d7 | 540 | d = decode_block(ch, SB); \ |
215ff9e6 | 541 | if (d && ns < ret) \ |
542 | ret = ns; \ | |
07a6dd2c | 543 | } \ |
544 | \ | |
07a6dd2c | 545 | interp1_code; \ |
546 | spos -= 0x10000; \ | |
547 | } \ | |
548 | \ | |
549 | interp2_code; \ | |
07a6dd2c | 550 | } \ |
551 | \ | |
07a6dd2c | 552 | s_chan[ch].sinc = sinc; \ |
553 | s_chan[ch].spos = spos; \ | |
381ea103 | 554 | s_chan[ch].iSBPos = sbpos; \ |
07a6dd2c | 555 | interp_end; \ |
556 | \ | |
557 | return ret; \ | |
558 | } | |
559 | ||
560 | #define fmod_recv_check \ | |
561 | if(s_chan[ch].bFMod==1 && iFMod[ns]) \ | |
011755d7 | 562 | sinc = FModChangeFrequency(SB, s_chan[ch].iRawPitch, ns) |
07a6dd2c | 563 | |
564 | make_do_samples(default, fmod_recv_check, , | |
011755d7 | 565 | StoreInterpolationVal(SB, sinc, fa, s_chan[ch].bFMod==2), |
566 | ChanBuf[ns] = iGetInterpolationVal(SB, sinc, spos, s_chan[ch].bFMod==2), ) | |
567 | make_do_samples(noint, , fa = SB[29], , ChanBuf[ns] = fa, SB[29] = fa) | |
07a6dd2c | 568 | |
569 | #define simple_interp_store \ | |
215ff9e6 | 570 | SB[28] = 0; \ |
571 | SB[29] = SB[30]; \ | |
572 | SB[30] = SB[31]; \ | |
573 | SB[31] = fa; \ | |
574 | SB[32] = 1 | |
07a6dd2c | 575 | |
576 | #define simple_interp_get \ | |
011755d7 | 577 | if(sinc<0x10000) /* -> upsampling? */ \ |
578 | InterpolateUp(SB, sinc); /* --> interpolate up */ \ | |
579 | else InterpolateDown(SB, sinc); /* --> else down */ \ | |
580 | ChanBuf[ns] = SB[29] | |
07a6dd2c | 581 | |
582 | make_do_samples(simple, , , | |
583 | simple_interp_store, simple_interp_get, ) | |
584 | ||
215ff9e6 | 585 | static int do_samples_skip(int ch, int ns_to) |
07a6dd2c | 586 | { |
215ff9e6 | 587 | int ret = ns_to, ns, d; |
b1094d0e | 588 | |
215ff9e6 | 589 | s_chan[ch].spos += s_chan[ch].iSBPos << 16; |
590 | ||
591 | for (ns = 0; ns < ns_to; ns++) | |
07a6dd2c | 592 | { |
215ff9e6 | 593 | s_chan[ch].spos += s_chan[ch].sinc; |
594 | while (s_chan[ch].spos >= 28*0x10000) | |
595 | { | |
596 | d = skip_block(ch); | |
597 | if (d && ns < ret) | |
598 | ret = ns; | |
599 | s_chan[ch].spos -= 28*0x10000; | |
600 | } | |
07a6dd2c | 601 | } |
602 | ||
215ff9e6 | 603 | s_chan[ch].iSBPos = s_chan[ch].spos >> 16; |
604 | s_chan[ch].spos &= 0xffff; | |
605 | ||
606 | return ret; | |
607 | } | |
608 | ||
609 | static void do_lsfr_samples(int ns_to, int ctrl, | |
610 | unsigned int *dwNoiseCount, unsigned int *dwNoiseVal) | |
611 | { | |
612 | unsigned int counter = *dwNoiseCount; | |
613 | unsigned int val = *dwNoiseVal; | |
614 | unsigned int level, shift, bit; | |
615 | int ns; | |
616 | ||
b1094d0e | 617 | // modified from DrHell/shalma, no fraction |
215ff9e6 | 618 | level = (ctrl >> 10) & 0x0f; |
b1094d0e | 619 | level = 0x8000 >> level; |
620 | ||
215ff9e6 | 621 | for (ns = 0; ns < ns_to; ns++) |
b1094d0e | 622 | { |
215ff9e6 | 623 | counter += 2; |
624 | if (counter >= level) | |
b1094d0e | 625 | { |
215ff9e6 | 626 | counter -= level; |
627 | shift = (val >> 10) & 0x1f; | |
b1094d0e | 628 | bit = (0x69696969 >> shift) & 1; |
215ff9e6 | 629 | bit ^= (val >> 15) & 1; |
630 | val = (val << 1) | bit; | |
b1094d0e | 631 | } |
632 | ||
215ff9e6 | 633 | ChanBuf[ns] = (signed short)val; |
b1094d0e | 634 | } |
07a6dd2c | 635 | |
215ff9e6 | 636 | *dwNoiseCount = counter; |
637 | *dwNoiseVal = val; | |
638 | } | |
639 | ||
640 | static int do_samples_noise(int ch, int ns_to) | |
641 | { | |
642 | int ret; | |
643 | ||
644 | ret = do_samples_skip(ch, ns_to); | |
645 | ||
646 | do_lsfr_samples(ns_to, spu.spuCtrl, &spu.dwNoiseCount, &spu.dwNoiseVal); | |
647 | ||
89cb2058 | 648 | return ret; |
07a6dd2c | 649 | } |
650 | ||
665f33e1 | 651 | #ifdef HAVE_ARMV5 |
3a721c1f | 652 | // asm code; lv and rv must be 0-3fff |
b17618c0 | 653 | extern void mix_chan(int start, int count, int lv, int rv); |
3154bfab | 654 | extern void mix_chan_rvb(int start, int count, int lv, int rv, int *rvb); |
b17618c0 | 655 | #else |
656 | static void mix_chan(int start, int count, int lv, int rv) | |
657 | { | |
658 | int *dst = SSumLR + start * 2; | |
659 | const int *src = ChanBuf + start; | |
660 | int l, r; | |
661 | ||
662 | while (count--) | |
663 | { | |
664 | int sval = *src++; | |
665 | ||
666 | l = (sval * lv) >> 14; | |
667 | r = (sval * rv) >> 14; | |
668 | *dst++ += l; | |
669 | *dst++ += r; | |
670 | } | |
671 | } | |
672 | ||
3154bfab | 673 | static void mix_chan_rvb(int start, int count, int lv, int rv, int *rvb) |
b17618c0 | 674 | { |
675 | int *dst = SSumLR + start * 2; | |
3154bfab | 676 | int *drvb = rvb + start * 2; |
b17618c0 | 677 | const int *src = ChanBuf + start; |
678 | int l, r; | |
679 | ||
680 | while (count--) | |
681 | { | |
682 | int sval = *src++; | |
683 | ||
684 | l = (sval * lv) >> 14; | |
685 | r = (sval * rv) >> 14; | |
686 | *dst++ += l; | |
687 | *dst++ += r; | |
688 | *drvb++ += l; | |
689 | *drvb++ += r; | |
690 | } | |
691 | } | |
692 | #endif | |
693 | ||
b72f17a1 | 694 | // 0x0800-0x0bff Voice 1 |
695 | // 0x0c00-0x0fff Voice 3 | |
215ff9e6 | 696 | static noinline void do_decode_bufs(unsigned short *mem, int which, |
697 | int count, int decode_pos) | |
b72f17a1 | 698 | { |
215ff9e6 | 699 | unsigned short *dst = &mem[0x800/2 + which*0x400/2]; |
700 | const int *src = ChanBuf; | |
701 | int cursor = decode_pos; | |
b72f17a1 | 702 | |
703 | while (count-- > 0) | |
704 | { | |
ee9afdbd | 705 | cursor &= 0x1ff; |
b72f17a1 | 706 | dst[cursor] = *src++; |
ee9afdbd | 707 | cursor++; |
b72f17a1 | 708 | } |
709 | ||
710 | // decode_pos is updated and irqs are checked later, after voice loop | |
711 | } | |
712 | ||
215ff9e6 | 713 | static void do_silent_chans(int ns_to, int silentch) |
714 | { | |
715 | int ch; | |
716 | ||
717 | for (ch = 0; ch < MAXCHAN; ch++) | |
718 | { | |
719 | if (!(silentch & (1<<ch))) continue; // already handled | |
720 | if (spu.dwChannelDead & (1<<ch)) continue; | |
721 | if (s_chan[ch].pCurr > spu.pSpuIrq && s_chan[ch].pLoop > spu.pSpuIrq) | |
722 | continue; | |
723 | ||
724 | s_chan[ch].spos += s_chan[ch].iSBPos << 16; | |
725 | s_chan[ch].iSBPos = 0; | |
726 | ||
727 | s_chan[ch].spos += s_chan[ch].sinc * ns_to; | |
728 | while (s_chan[ch].spos >= 28 * 0x10000) | |
729 | { | |
730 | unsigned char *start = s_chan[ch].pCurr; | |
731 | ||
732 | skip_block(ch); | |
733 | if (start == s_chan[ch].pCurr || start - spu.spuMemC < 0x1000) | |
734 | { | |
735 | // looping on self or stopped(?) | |
736 | spu.dwChannelDead |= 1<<ch; | |
737 | s_chan[ch].spos = 0; | |
738 | break; | |
739 | } | |
740 | ||
741 | s_chan[ch].spos -= 28 * 0x10000; | |
742 | } | |
743 | } | |
744 | } | |
745 | ||
746 | static void do_channels(int ns_to) | |
747 | { | |
748 | unsigned int mask; | |
749 | int ch, d; | |
750 | ||
751 | InitREVERB(ns_to); | |
752 | ||
753 | mask = spu.dwChannelOn & 0xffffff; | |
754 | for (ch = 0; mask != 0; ch++, mask >>= 1) // loop em all... | |
755 | { | |
756 | if (!(mask & 1)) continue; // channel not playing? next | |
757 | ||
758 | if (s_chan[ch].bNoise) | |
759 | d = do_samples_noise(ch, ns_to); | |
760 | else if (s_chan[ch].bFMod == 2 | |
761 | || (s_chan[ch].bFMod == 0 && spu_config.iUseInterpolation == 0)) | |
762 | d = do_samples_noint(ch, ns_to); | |
763 | else if (s_chan[ch].bFMod == 0 && spu_config.iUseInterpolation == 1) | |
764 | d = do_samples_simple(ch, ns_to); | |
765 | else | |
766 | d = do_samples_default(ch, ns_to); | |
767 | ||
768 | d = MixADSR(ch, d); | |
769 | if (d < ns_to) { | |
770 | spu.dwChannelOn &= ~(1 << ch); | |
771 | s_chan[ch].bStop = 1; | |
772 | s_chan[ch].ADSRX.EnvelopeVol = 0; | |
773 | memset(&ChanBuf[d], 0, (ns_to - d) * sizeof(ChanBuf[0])); | |
774 | } | |
775 | ||
776 | if (ch == 1 || ch == 3) | |
777 | { | |
778 | do_decode_bufs(spu.spuMem, ch/2, ns_to, spu.decode_pos); | |
779 | spu.decode_dirty_ch |= 1 << ch; | |
780 | } | |
781 | ||
782 | if (s_chan[ch].bFMod == 2) // fmod freq channel | |
783 | memcpy(iFMod, &ChanBuf, ns_to * sizeof(iFMod[0])); | |
784 | if (s_chan[ch].bRVBActive) | |
785 | mix_chan_rvb(0, ns_to, s_chan[ch].iLeftVolume, s_chan[ch].iRightVolume, spu.sRVBStart); | |
786 | else | |
787 | mix_chan(0, ns_to, s_chan[ch].iLeftVolume, s_chan[ch].iRightVolume); | |
788 | } | |
789 | } | |
790 | ||
ef79bbde P |
791 | //////////////////////////////////////////////////////////////////////// |
792 | // MAIN SPU FUNCTION | |
6d75977b | 793 | // here is the main job handler... |
ef79bbde P |
794 | //////////////////////////////////////////////////////////////////////// |
795 | ||
215ff9e6 | 796 | void do_samples_finish(int ns_to, int silentch); |
797 | ||
650adfd2 | 798 | void do_samples(unsigned int cycles_to) |
ef79bbde | 799 | { |
215ff9e6 | 800 | unsigned int mask; |
801 | int ch, ns_to; | |
802 | int silentch; | |
650adfd2 | 803 | int cycle_diff; |
ef79bbde | 804 | |
3154bfab | 805 | cycle_diff = cycles_to - spu.cycles_played; |
650adfd2 | 806 | if (cycle_diff < -2*1048576 || cycle_diff > 2*1048576) |
807 | { | |
808 | //xprintf("desync %u %d\n", cycles_to, cycle_diff); | |
3154bfab | 809 | spu.cycles_played = cycles_to; |
650adfd2 | 810 | return; |
811 | } | |
e34a4bd3 | 812 | |
650adfd2 | 813 | if (cycle_diff < 2 * 768) |
814 | return; | |
e34a4bd3 | 815 | |
650adfd2 | 816 | ns_to = (cycle_diff / 768 + 1) & ~1; |
817 | if (ns_to > NSSIZE) { | |
818 | // should never happen | |
819 | //xprintf("ns_to oflow %d %d\n", ns_to, NSSIZE); | |
820 | ns_to = NSSIZE; | |
821 | } | |
822 | ||
823 | ////////////////////////////////////////////////////// | |
824 | // special irq handling in the decode buffers (0x0000-0x1000) | |
825 | // we know: | |
826 | // the decode buffers are located in spu memory in the following way: | |
827 | // 0x0000-0x03ff CD audio left | |
828 | // 0x0400-0x07ff CD audio right | |
829 | // 0x0800-0x0bff Voice 1 | |
830 | // 0x0c00-0x0fff Voice 3 | |
831 | // and decoded data is 16 bit for one sample | |
832 | // we assume: | |
833 | // even if voices 1/3 are off or no cd audio is playing, the internal | |
834 | // play positions will move on and wrap after 0x400 bytes. | |
835 | // Therefore: we just need a pointer from spumem+0 to spumem+3ff, and | |
836 | // increase this pointer on each sample by 2 bytes. If this pointer | |
837 | // (or 0x400 offsets of this pointer) hits the spuirq address, we generate | |
838 | // an IRQ. | |
839 | ||
3154bfab | 840 | if (unlikely((spu.spuCtrl & CTRL_IRQ) |
c4c66b22 | 841 | && spu.pSpuIrq < spu.spuMemC+0x1000)) |
650adfd2 | 842 | { |
3154bfab | 843 | int irq_pos = (spu.pSpuIrq - spu.spuMemC) / 2 & 0x1ff; |
844 | int left = (irq_pos - spu.decode_pos) & 0x1ff; | |
650adfd2 | 845 | if (0 < left && left <= ns_to) |
846 | { | |
3154bfab | 847 | //xprintf("decoder irq %x\n", spu.decode_pos); |
650adfd2 | 848 | do_irq(); |
650adfd2 | 849 | } |
850 | } | |
851 | ||
215ff9e6 | 852 | silentch = ~(spu.dwChannelOn|spu.dwNewChannel); |
ef79bbde | 853 | |
215ff9e6 | 854 | mask = spu.dwNewChannel & 0xffffff; |
855 | for (ch = 0; mask != 0; ch++, mask >>= 1) { | |
856 | if (mask & 1) | |
857 | StartSound(ch); | |
858 | } | |
174c454a | 859 | |
215ff9e6 | 860 | if (spu.dwChannelOn == 0) |
861 | InitREVERB(ns_to); | |
862 | else { | |
863 | do_channels(ns_to); | |
864 | } | |
ef79bbde | 865 | |
215ff9e6 | 866 | do_samples_finish(ns_to, silentch); |
867 | ||
868 | // advance "stopped" channels that can cause irqs | |
869 | // (all chans are always playing on the real thing..) | |
870 | if (spu.spuCtrl & CTRL_IRQ) | |
871 | do_silent_chans(ns_to, silentch); | |
872 | ||
873 | spu.cycles_played += ns_to * 768; | |
874 | spu.decode_pos = (spu.decode_pos + ns_to) & 0x1ff; | |
875 | } | |
876 | ||
877 | void do_samples_finish(int ns_to, int silentch) | |
878 | { | |
879 | int volmult = spu_config.iVolume; | |
880 | int ns; | |
881 | int d; | |
78c60846 | 882 | |
3154bfab | 883 | if(unlikely(silentch & spu.decode_dirty_ch & (1<<1))) // must clear silent channel decode buffers |
b72f17a1 | 884 | { |
3154bfab | 885 | memset(&spu.spuMem[0x800/2], 0, 0x400); |
886 | spu.decode_dirty_ch &= ~(1<<1); | |
b72f17a1 | 887 | } |
3154bfab | 888 | if(unlikely(silentch & spu.decode_dirty_ch & (1<<3))) |
b72f17a1 | 889 | { |
3154bfab | 890 | memset(&spu.spuMem[0xc00/2], 0, 0x400); |
891 | spu.decode_dirty_ch &= ~(1<<3); | |
b72f17a1 | 892 | } |
8680e822 | 893 | |
ef79bbde P |
894 | //---------------------------------------------------// |
895 | // mix XA infos (if any) | |
896 | ||
215ff9e6 | 897 | MixXA(ns_to, spu.decode_pos); |
ef79bbde P |
898 | |
899 | /////////////////////////////////////////////////////// | |
900 | // mix all channels (including reverb) into one buffer | |
901 | ||
3154bfab | 902 | if(spu_config.iUseReverb) |
650adfd2 | 903 | REVERBDo(ns_to); |
1775933a | 904 | |
3154bfab | 905 | if((spu.spuCtrl&0x4000)==0) // muted? (rare, don't optimize for this) |
1775933a | 906 | { |
3154bfab | 907 | memset(spu.pS, 0, ns_to * 2 * sizeof(spu.pS[0])); |
908 | spu.pS += ns_to * 2; | |
1775933a | 909 | } |
910 | else | |
650adfd2 | 911 | for (ns = 0; ns < ns_to * 2; ) |
ef79bbde | 912 | { |
9e7a7352 | 913 | d = SSumLR[ns]; SSumLR[ns] = 0; |
914 | d = d * volmult >> 10; | |
1775933a | 915 | ssat32_to_16(d); |
3154bfab | 916 | *spu.pS++ = d; |
97ea4077 | 917 | ns++; |
ef79bbde | 918 | |
9e7a7352 | 919 | d = SSumLR[ns]; SSumLR[ns] = 0; |
920 | d = d * volmult >> 10; | |
1775933a | 921 | ssat32_to_16(d); |
3154bfab | 922 | *spu.pS++ = d; |
97ea4077 | 923 | ns++; |
ef79bbde | 924 | } |
650adfd2 | 925 | } |
ef79bbde | 926 | |
650adfd2 | 927 | void schedule_next_irq(void) |
928 | { | |
929 | unsigned int upd_samples; | |
930 | int ch; | |
ef79bbde | 931 | |
3154bfab | 932 | if (spu.scheduleCallback == NULL) |
650adfd2 | 933 | return; |
e34a4bd3 | 934 | |
650adfd2 | 935 | upd_samples = 44100 / 50; |
e34a4bd3 | 936 | |
650adfd2 | 937 | for (ch = 0; ch < MAXCHAN; ch++) |
938 | { | |
3154bfab | 939 | if (spu.dwChannelDead & (1 << ch)) |
650adfd2 | 940 | continue; |
3154bfab | 941 | if ((unsigned long)(spu.pSpuIrq - s_chan[ch].pCurr) > IRQ_NEAR_BLOCKS * 16 |
942 | && (unsigned long)(spu.pSpuIrq - s_chan[ch].pLoop) > IRQ_NEAR_BLOCKS * 16) | |
650adfd2 | 943 | continue; |
16187bfb | 944 | |
650adfd2 | 945 | scan_for_irq(ch, &upd_samples); |
ef79bbde P |
946 | } |
947 | ||
3154bfab | 948 | if (unlikely(spu.pSpuIrq < spu.spuMemC + 0x1000)) |
650adfd2 | 949 | { |
3154bfab | 950 | int irq_pos = (spu.pSpuIrq - spu.spuMemC) / 2 & 0x1ff; |
951 | int left = (irq_pos - spu.decode_pos) & 0x1ff; | |
650adfd2 | 952 | if (0 < left && left < upd_samples) { |
3154bfab | 953 | //xprintf("decode: %3d (%3d/%3d)\n", left, spu.decode_pos, irq_pos); |
650adfd2 | 954 | upd_samples = left; |
955 | } | |
956 | } | |
16187bfb | 957 | |
650adfd2 | 958 | if (upd_samples < 44100 / 50) |
3154bfab | 959 | spu.scheduleCallback(upd_samples * 768); |
ef79bbde P |
960 | } |
961 | ||
962 | // SPU ASYNC... even newer epsxe func | |
963 | // 1 time every 'cycle' cycles... harhar | |
964 | ||
650adfd2 | 965 | // rearmed: called dynamically now |
554a2220 | 966 | |
650adfd2 | 967 | void CALLBACK SPUasync(unsigned int cycle, unsigned int flags) |
ef79bbde | 968 | { |
650adfd2 | 969 | do_samples(cycle); |
fb552464 | 970 | |
3154bfab | 971 | if (spu.spuCtrl & CTRL_IRQ) |
650adfd2 | 972 | schedule_next_irq(); |
f8edb5bc | 973 | |
650adfd2 | 974 | if (flags & 1) { |
3154bfab | 975 | out_current->feed(spu.pSpuBuffer, (unsigned char *)spu.pS - spu.pSpuBuffer); |
976 | spu.pS = (short *)spu.pSpuBuffer; | |
fb552464 | 977 | |
3154bfab | 978 | if (spu_config.iTempo) { |
650adfd2 | 979 | if (!out_current->busy()) |
980 | // cause more samples to be generated | |
981 | // (and break some games because of bad sync) | |
3154bfab | 982 | spu.cycles_played -= 44100 / 60 / 2 * 768; |
ef79bbde | 983 | } |
650adfd2 | 984 | } |
ef79bbde P |
985 | } |
986 | ||
987 | // SPU UPDATE... new epsxe func | |
988 | // 1 time every 32 hsync lines | |
989 | // (312/32)x50 in pal | |
990 | // (262/32)x60 in ntsc | |
991 | ||
992 | // since epsxe 1.5.2 (linux) uses SPUupdate, not SPUasync, I will | |
993 | // leave that func in the linux port, until epsxe linux is using | |
994 | // the async function as well | |
995 | ||
996 | void CALLBACK SPUupdate(void) | |
997 | { | |
ef79bbde P |
998 | } |
999 | ||
1000 | // XA AUDIO | |
1001 | ||
1002 | void CALLBACK SPUplayADPCMchannel(xa_decode_t *xap) | |
1003 | { | |
1004 | if(!xap) return; | |
1005 | if(!xap->freq) return; // no xa freq ? bye | |
1006 | ||
1007 | FeedXA(xap); // call main XA feeder | |
1008 | } | |
1009 | ||
1010 | // CDDA AUDIO | |
983a7cfd | 1011 | int CALLBACK SPUplayCDDAchannel(short *pcm, int nbytes) |
ef79bbde | 1012 | { |
983a7cfd | 1013 | if (!pcm) return -1; |
1014 | if (nbytes<=0) return -1; | |
ef79bbde | 1015 | |
983a7cfd | 1016 | return FeedCDDA((unsigned char *)pcm, nbytes); |
ef79bbde P |
1017 | } |
1018 | ||
6d75977b | 1019 | // to be called after state load |
1020 | void ClearWorkingState(void) | |
ef79bbde | 1021 | { |
97ea4077 | 1022 | memset(SSumLR,0,sizeof(SSumLR)); // init some mixing buffers |
6d75977b | 1023 | memset(iFMod,0,sizeof(iFMod)); |
3154bfab | 1024 | spu.pS=(short *)spu.pSpuBuffer; // setup soundbuffer pointer |
ef79bbde P |
1025 | } |
1026 | ||
1027 | // SETUPSTREAMS: init most of the spu buffers | |
1028 | void SetupStreams(void) | |
1029 | { | |
1030 | int i; | |
1031 | ||
3154bfab | 1032 | spu.pSpuBuffer = (unsigned char *)malloc(32768); // alloc mixing buffer |
1033 | spu.sRVBStart = (int *)malloc(NSSIZE*2*4); // alloc reverb buffer | |
1034 | memset(spu.sRVBStart,0,NSSIZE*2*4); | |
ef79bbde | 1035 | |
3154bfab | 1036 | spu.XAStart = // alloc xa buffer |
ef79bbde | 1037 | (uint32_t *)malloc(44100 * sizeof(uint32_t)); |
3154bfab | 1038 | spu.XAEnd = spu.XAStart + 44100; |
1039 | spu.XAPlay = spu.XAStart; | |
1040 | spu.XAFeed = spu.XAStart; | |
ef79bbde | 1041 | |
3154bfab | 1042 | spu.CDDAStart = // alloc cdda buffer |
983a7cfd | 1043 | (uint32_t *)malloc(CDDA_BUFFER_SIZE); |
3154bfab | 1044 | spu.CDDAEnd = spu.CDDAStart + 16384; |
1045 | spu.CDDAPlay = spu.CDDAStart; | |
1046 | spu.CDDAFeed = spu.CDDAStart; | |
ef79bbde P |
1047 | |
1048 | for(i=0;i<MAXCHAN;i++) // loop sound channels | |
1049 | { | |
6d866bb7 | 1050 | s_chan[i].ADSRX.SustainLevel = 0xf; // -> init sustain |
650adfd2 | 1051 | s_chan[i].ADSRX.SustainIncrease = 1; |
3154bfab | 1052 | s_chan[i].pLoop=spu.spuMemC; |
1053 | s_chan[i].pCurr=spu.spuMemC; | |
ef79bbde P |
1054 | } |
1055 | ||
6d75977b | 1056 | ClearWorkingState(); |
1057 | ||
3154bfab | 1058 | spu.bSpuInit=1; // flag: we are inited |
ef79bbde P |
1059 | } |
1060 | ||
1061 | // REMOVESTREAMS: free most buffer | |
1062 | void RemoveStreams(void) | |
1063 | { | |
3154bfab | 1064 | free(spu.pSpuBuffer); // free mixing buffer |
1065 | spu.pSpuBuffer = NULL; | |
1066 | free(spu.sRVBStart); // free reverb buffer | |
1067 | spu.sRVBStart = NULL; | |
1068 | free(spu.XAStart); // free XA buffer | |
1069 | spu.XAStart = NULL; | |
1070 | free(spu.CDDAStart); // free CDDA buffer | |
1071 | spu.CDDAStart = NULL; | |
ef79bbde P |
1072 | } |
1073 | ||
1074 | // INIT/EXIT STUFF | |
1075 | ||
1076 | // SPUINIT: this func will be called first by the main emu | |
1077 | long CALLBACK SPUinit(void) | |
1078 | { | |
3154bfab | 1079 | spu.spuMemC = (unsigned char *)spu.spuMem; // just small setup |
ef79bbde P |
1080 | memset((void *)&rvb, 0, sizeof(REVERBInfo)); |
1081 | InitADSR(); | |
1082 | ||
3154bfab | 1083 | spu.spuAddr = 0xffffffff; |
1084 | spu.decode_pos = 0; | |
1085 | memset((void *)s_chan, 0, sizeof(s_chan)); | |
c4c66b22 | 1086 | spu.pSpuIrq = spu.spuMemC; |
ef79bbde | 1087 | |
ef79bbde P |
1088 | SetupStreams(); // prepare streaming |
1089 | ||
3154bfab | 1090 | if (spu_config.iVolume == 0) |
1091 | spu_config.iVolume = 768; // 1024 is 1.0 | |
1092 | ||
ef79bbde P |
1093 | return 0; |
1094 | } | |
1095 | ||
1096 | // SPUOPEN: called by main emu after init | |
1097 | long CALLBACK SPUopen(void) | |
1098 | { | |
3154bfab | 1099 | if (spu.bSPUIsOpen) return 0; // security for some stupid main emus |
ef79bbde P |
1100 | |
1101 | SetupSound(); // setup sound (before init!) | |
ef79bbde | 1102 | |
3154bfab | 1103 | spu.bSPUIsOpen = 1; |
ef79bbde P |
1104 | |
1105 | return PSE_SPU_ERR_SUCCESS; | |
1106 | } | |
1107 | ||
1108 | // SPUCLOSE: called before shutdown | |
1109 | long CALLBACK SPUclose(void) | |
1110 | { | |
3154bfab | 1111 | if (!spu.bSPUIsOpen) return 0; // some security |
ef79bbde | 1112 | |
3154bfab | 1113 | spu.bSPUIsOpen = 0; // no more open |
ef79bbde | 1114 | |
07c13dfd | 1115 | out_current->finish(); // no more sound handling |
ef79bbde P |
1116 | |
1117 | return 0; | |
1118 | } | |
1119 | ||
1120 | // SPUSHUTDOWN: called by main emu on final exit | |
1121 | long CALLBACK SPUshutdown(void) | |
1122 | { | |
1123 | SPUclose(); | |
1124 | RemoveStreams(); // no more streaming | |
3154bfab | 1125 | spu.bSpuInit=0; |
ef79bbde P |
1126 | |
1127 | return 0; | |
1128 | } | |
1129 | ||
1130 | // SPUTEST: we don't test, we are always fine ;) | |
1131 | long CALLBACK SPUtest(void) | |
1132 | { | |
1133 | return 0; | |
1134 | } | |
1135 | ||
1136 | // SPUCONFIGURE: call config dialog | |
1137 | long CALLBACK SPUconfigure(void) | |
1138 | { | |
1139 | #ifdef _MACOSX | |
1140 | DoConfiguration(); | |
1141 | #else | |
ee849648 | 1142 | // StartCfgTool("CFG"); |
ef79bbde P |
1143 | #endif |
1144 | return 0; | |
1145 | } | |
1146 | ||
1147 | // SPUABOUT: show about window | |
1148 | void CALLBACK SPUabout(void) | |
1149 | { | |
1150 | #ifdef _MACOSX | |
1151 | DoAbout(); | |
1152 | #else | |
ee849648 | 1153 | // StartCfgTool("ABOUT"); |
ef79bbde P |
1154 | #endif |
1155 | } | |
1156 | ||
1157 | // SETUP CALLBACKS | |
1158 | // this functions will be called once, | |
1159 | // passes a callback that should be called on SPU-IRQ/cdda volume change | |
1160 | void CALLBACK SPUregisterCallback(void (CALLBACK *callback)(void)) | |
1161 | { | |
3154bfab | 1162 | spu.irqCallback = callback; |
ef79bbde P |
1163 | } |
1164 | ||
1165 | void CALLBACK SPUregisterCDDAVolume(void (CALLBACK *CDDAVcallback)(unsigned short,unsigned short)) | |
1166 | { | |
3154bfab | 1167 | spu.cddavCallback = CDDAVcallback; |
ef79bbde P |
1168 | } |
1169 | ||
2b30c129 | 1170 | void CALLBACK SPUregisterScheduleCb(void (CALLBACK *callback)(unsigned int)) |
1171 | { | |
3154bfab | 1172 | spu.scheduleCallback = callback; |
2b30c129 | 1173 | } |
1174 | ||
ef79bbde | 1175 | // COMMON PLUGIN INFO FUNCS |
e906c010 | 1176 | /* |
ef79bbde P |
1177 | char * CALLBACK PSEgetLibName(void) |
1178 | { | |
1179 | return _(libraryName); | |
1180 | } | |
1181 | ||
1182 | unsigned long CALLBACK PSEgetLibType(void) | |
1183 | { | |
1184 | return PSE_LT_SPU; | |
1185 | } | |
1186 | ||
1187 | unsigned long CALLBACK PSEgetLibVersion(void) | |
1188 | { | |
1189 | return (1 << 16) | (6 << 8); | |
1190 | } | |
1191 | ||
1192 | char * SPUgetLibInfos(void) | |
1193 | { | |
1194 | return _(libraryInfo); | |
1195 | } | |
e906c010 | 1196 | */ |
6d866bb7 | 1197 | |
90f1d26c | 1198 | // debug |
174c454a | 1199 | void spu_get_debug_info(int *chans_out, int *run_chans, int *fmod_chans_out, int *noise_chans_out) |
90f1d26c | 1200 | { |
174c454a | 1201 | int ch = 0, fmod_chans = 0, noise_chans = 0, irq_chans = 0; |
90f1d26c | 1202 | |
1203 | for(;ch<MAXCHAN;ch++) | |
1204 | { | |
3154bfab | 1205 | if (!(spu.dwChannelOn & (1<<ch))) |
90f1d26c | 1206 | continue; |
1207 | if (s_chan[ch].bFMod == 2) | |
1208 | fmod_chans |= 1 << ch; | |
1209 | if (s_chan[ch].bNoise) | |
1210 | noise_chans |= 1 << ch; | |
3154bfab | 1211 | if((spu.spuCtrl&CTRL_IRQ) && s_chan[ch].pCurr <= spu.pSpuIrq && s_chan[ch].pLoop <= spu.pSpuIrq) |
174c454a | 1212 | irq_chans |= 1 << ch; |
90f1d26c | 1213 | } |
1214 | ||
3154bfab | 1215 | *chans_out = spu.dwChannelOn; |
1216 | *run_chans = ~spu.dwChannelOn & ~spu.dwChannelDead & irq_chans; | |
90f1d26c | 1217 | *fmod_chans_out = fmod_chans; |
1218 | *noise_chans_out = noise_chans; | |
1219 | } | |
1220 | ||
6d866bb7 | 1221 | // vim:shiftwidth=1:expandtab |