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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 | ||
141 | ||
142 | INLINE void InterpolateUp(int ch) | |
143 | { | |
144 | if(s_chan[ch].SB[32]==1) // flag == 1? calc step and set flag... and don't change the value in this pass | |
145 | { | |
146 | const int id1=s_chan[ch].SB[30]-s_chan[ch].SB[29]; // curr delta to next val | |
147 | const int id2=s_chan[ch].SB[31]-s_chan[ch].SB[30]; // and next delta to next-next val :) | |
148 | ||
149 | s_chan[ch].SB[32]=0; | |
150 | ||
151 | if(id1>0) // curr delta positive | |
152 | { | |
153 | if(id2<id1) | |
154 | {s_chan[ch].SB[28]=id1;s_chan[ch].SB[32]=2;} | |
155 | else | |
156 | if(id2<(id1<<1)) | |
157 | s_chan[ch].SB[28]=(id1*s_chan[ch].sinc)/0x10000L; | |
158 | else | |
159 | s_chan[ch].SB[28]=(id1*s_chan[ch].sinc)/0x20000L; | |
160 | } | |
161 | else // curr delta negative | |
162 | { | |
163 | if(id2>id1) | |
164 | {s_chan[ch].SB[28]=id1;s_chan[ch].SB[32]=2;} | |
165 | else | |
166 | if(id2>(id1<<1)) | |
167 | s_chan[ch].SB[28]=(id1*s_chan[ch].sinc)/0x10000L; | |
168 | else | |
169 | s_chan[ch].SB[28]=(id1*s_chan[ch].sinc)/0x20000L; | |
170 | } | |
171 | } | |
172 | else | |
173 | if(s_chan[ch].SB[32]==2) // flag 1: calc step and set flag... and don't change the value in this pass | |
174 | { | |
175 | s_chan[ch].SB[32]=0; | |
176 | ||
177 | s_chan[ch].SB[28]=(s_chan[ch].SB[28]*s_chan[ch].sinc)/0x20000L; | |
76d1d09c | 178 | //if(s_chan[ch].sinc<=0x8000) |
179 | // s_chan[ch].SB[29]=s_chan[ch].SB[30]-(s_chan[ch].SB[28]*((0x10000/s_chan[ch].sinc)-1)); | |
180 | //else | |
181 | s_chan[ch].SB[29]+=s_chan[ch].SB[28]; | |
ef79bbde P |
182 | } |
183 | else // no flags? add bigger val (if possible), calc smaller step, set flag1 | |
184 | s_chan[ch].SB[29]+=s_chan[ch].SB[28]; | |
185 | } | |
186 | ||
187 | // | |
188 | // even easier interpolation on downsampling, also no special filter, again just "Pete's common sense" tm | |
189 | // | |
190 | ||
191 | INLINE void InterpolateDown(int ch) | |
192 | { | |
193 | if(s_chan[ch].sinc>=0x20000L) // we would skip at least one val? | |
194 | { | |
195 | s_chan[ch].SB[29]+=(s_chan[ch].SB[30]-s_chan[ch].SB[29])/2; // add easy weight | |
196 | if(s_chan[ch].sinc>=0x30000L) // we would skip even more vals? | |
197 | s_chan[ch].SB[29]+=(s_chan[ch].SB[31]-s_chan[ch].SB[30])/2;// add additional next weight | |
198 | } | |
199 | } | |
200 | ||
201 | //////////////////////////////////////////////////////////////////////// | |
202 | // helpers for gauss interpolation | |
203 | ||
3154bfab | 204 | #define gval0 (((short*)(&s_chan[ch].SB[29]))[gpos&3]) |
f05d6ca2 | 205 | #define gval(x) ((int)((short*)(&s_chan[ch].SB[29]))[(gpos+x)&3]) |
ef79bbde P |
206 | |
207 | #include "gauss_i.h" | |
208 | ||
209 | //////////////////////////////////////////////////////////////////////// | |
210 | ||
211 | #include "xa.c" | |
212 | ||
e4f075af | 213 | static void do_irq(void) |
214 | { | |
3154bfab | 215 | //if(!(spu.spuStat & STAT_IRQ)) |
e4f075af | 216 | { |
3154bfab | 217 | spu.spuStat |= STAT_IRQ; // asserted status? |
218 | if(spu.irqCallback) spu.irqCallback(); | |
e4f075af | 219 | } |
220 | } | |
221 | ||
222 | static int check_irq(int ch, unsigned char *pos) | |
223 | { | |
3154bfab | 224 | if((spu.spuCtrl & CTRL_IRQ) && pos == spu.pSpuIrq) |
e4f075af | 225 | { |
3154bfab | 226 | //printf("ch%d irq %04x\n", ch, pos - spu.spuMemC); |
e4f075af | 227 | do_irq(); |
228 | return 1; | |
229 | } | |
230 | return 0; | |
231 | } | |
232 | ||
ef79bbde P |
233 | //////////////////////////////////////////////////////////////////////// |
234 | // START SOUND... called by main thread to setup a new sound on a channel | |
235 | //////////////////////////////////////////////////////////////////////// | |
236 | ||
237 | INLINE void StartSound(int ch) | |
238 | { | |
239 | StartADSR(ch); | |
240 | StartREVERB(ch); | |
241 | ||
b00afb77 | 242 | // fussy timing issues - do in VoiceOn |
243 | //s_chan[ch].pCurr=s_chan[ch].pStart; // set sample start | |
244 | //s_chan[ch].bStop=0; | |
245 | //s_chan[ch].bOn=1; | |
ef79bbde | 246 | |
381ea103 | 247 | s_chan[ch].SB[26]=0; // init mixing vars |
248 | s_chan[ch].SB[27]=0; | |
bdd050c3 | 249 | s_chan[ch].iSBPos=27; |
ef79bbde | 250 | |
bdd050c3 | 251 | s_chan[ch].SB[28]=0; |
ef79bbde P |
252 | s_chan[ch].SB[29]=0; // init our interpolation helpers |
253 | s_chan[ch].SB[30]=0; | |
bdd050c3 | 254 | s_chan[ch].SB[31]=0; |
255 | s_chan[ch].spos=0; | |
ef79bbde | 256 | |
3154bfab | 257 | spu.dwNewChannel&=~(1<<ch); // clear new channel bit |
ef79bbde P |
258 | } |
259 | ||
260 | //////////////////////////////////////////////////////////////////////// | |
261 | // ALL KIND OF HELPERS | |
262 | //////////////////////////////////////////////////////////////////////// | |
263 | ||
07a6dd2c | 264 | INLINE int FModChangeFrequency(int ch,int ns) |
ef79bbde | 265 | { |
7e44d49d | 266 | unsigned int NP=s_chan[ch].iRawPitch; |
07a6dd2c | 267 | int sinc; |
ef79bbde P |
268 | |
269 | NP=((32768L+iFMod[ns])*NP)/32768L; | |
270 | ||
271 | if(NP>0x3fff) NP=0x3fff; | |
272 | if(NP<0x1) NP=0x1; | |
273 | ||
7e44d49d | 274 | sinc=NP<<4; // calc frequency |
3154bfab | 275 | if(spu_config.iUseInterpolation==1) // freq change in simple interpolation mode |
07a6dd2c | 276 | s_chan[ch].SB[32]=1; |
ef79bbde | 277 | iFMod[ns]=0; |
07a6dd2c | 278 | |
279 | return sinc; | |
ef79bbde P |
280 | } |
281 | ||
282 | //////////////////////////////////////////////////////////////////////// | |
283 | ||
ef79bbde P |
284 | INLINE void StoreInterpolationVal(int ch,int fa) |
285 | { | |
286 | if(s_chan[ch].bFMod==2) // fmod freq channel | |
287 | s_chan[ch].SB[29]=fa; | |
288 | else | |
289 | { | |
381ea103 | 290 | ssat32_to_16(fa); |
ef79bbde | 291 | |
3154bfab | 292 | if(spu_config.iUseInterpolation>=2) // gauss/cubic interpolation |
ef79bbde P |
293 | { |
294 | int gpos = s_chan[ch].SB[28]; | |
295 | gval0 = fa; | |
296 | gpos = (gpos+1) & 3; | |
297 | s_chan[ch].SB[28] = gpos; | |
298 | } | |
299 | else | |
3154bfab | 300 | if(spu_config.iUseInterpolation==1) // simple interpolation |
ef79bbde P |
301 | { |
302 | s_chan[ch].SB[28] = 0; | |
303 | 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' | |
304 | s_chan[ch].SB[30] = s_chan[ch].SB[31]; | |
305 | s_chan[ch].SB[31] = fa; | |
306 | s_chan[ch].SB[32] = 1; // -> flag: calc new interolation | |
307 | } | |
308 | else s_chan[ch].SB[29]=fa; // no interpolation | |
309 | } | |
310 | } | |
311 | ||
312 | //////////////////////////////////////////////////////////////////////// | |
313 | ||
8cd23d6d | 314 | INLINE int iGetInterpolationVal(int ch, int spos) |
ef79bbde P |
315 | { |
316 | int fa; | |
317 | ||
318 | if(s_chan[ch].bFMod==2) return s_chan[ch].SB[29]; | |
319 | ||
3154bfab | 320 | switch(spu_config.iUseInterpolation) |
ef79bbde P |
321 | { |
322 | //--------------------------------------------------// | |
323 | case 3: // cubic interpolation | |
324 | { | |
325 | long xd;int gpos; | |
8cd23d6d | 326 | xd = (spos >> 1)+1; |
ef79bbde P |
327 | gpos = s_chan[ch].SB[28]; |
328 | ||
329 | fa = gval(3) - 3*gval(2) + 3*gval(1) - gval0; | |
330 | fa *= (xd - (2<<15)) / 6; | |
331 | fa >>= 15; | |
332 | fa += gval(2) - gval(1) - gval(1) + gval0; | |
333 | fa *= (xd - (1<<15)) >> 1; | |
334 | fa >>= 15; | |
335 | fa += gval(1) - gval0; | |
336 | fa *= xd; | |
337 | fa >>= 15; | |
338 | fa = fa + gval0; | |
339 | ||
340 | } break; | |
341 | //--------------------------------------------------// | |
342 | case 2: // gauss interpolation | |
343 | { | |
344 | int vl, vr;int gpos; | |
8cd23d6d | 345 | vl = (spos >> 6) & ~3; |
ef79bbde | 346 | gpos = s_chan[ch].SB[28]; |
f05d6ca2 | 347 | vr=(gauss[vl]*(int)gval0)&~2047; |
ef79bbde P |
348 | vr+=(gauss[vl+1]*gval(1))&~2047; |
349 | vr+=(gauss[vl+2]*gval(2))&~2047; | |
350 | vr+=(gauss[vl+3]*gval(3))&~2047; | |
351 | fa = vr>>11; | |
352 | } break; | |
353 | //--------------------------------------------------// | |
354 | case 1: // simple interpolation | |
355 | { | |
356 | if(s_chan[ch].sinc<0x10000L) // -> upsampling? | |
357 | InterpolateUp(ch); // --> interpolate up | |
358 | else InterpolateDown(ch); // --> else down | |
359 | fa=s_chan[ch].SB[29]; | |
360 | } break; | |
361 | //--------------------------------------------------// | |
362 | default: // no interpolation | |
363 | { | |
364 | fa=s_chan[ch].SB[29]; | |
365 | } break; | |
366 | //--------------------------------------------------// | |
367 | } | |
368 | ||
369 | return fa; | |
370 | } | |
371 | ||
381ea103 | 372 | static void decode_block_data(int *dest, const unsigned char *src, int predict_nr, int shift_factor) |
373 | { | |
374 | int nSample; | |
375 | int fa, s_1, s_2, d, s; | |
376 | ||
377 | s_1 = dest[27]; | |
378 | s_2 = dest[26]; | |
379 | ||
380 | for (nSample = 0; nSample < 28; src++) | |
381 | { | |
382 | d = (int)*src; | |
383 | s = (int)(signed short)((d & 0x0f) << 12); | |
384 | ||
385 | fa = s >> shift_factor; | |
386 | fa += ((s_1 * f[predict_nr][0])>>6) + ((s_2 * f[predict_nr][1])>>6); | |
387 | s_2=s_1;s_1=fa; | |
388 | ||
389 | dest[nSample++] = fa; | |
390 | ||
391 | s = (int)(signed short)((d & 0xf0) << 8); | |
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 | } | |
399 | ||
e11ae5c5 | 400 | static int decode_block(int ch) |
401 | { | |
402 | unsigned char *start; | |
381ea103 | 403 | int predict_nr,shift_factor,flags; |
f9fe4923 | 404 | int stop = 0; |
e11ae5c5 | 405 | int ret = 0; |
406 | ||
f9fe4923 | 407 | start = s_chan[ch].pCurr; // set up the current pos |
3154bfab | 408 | if(start == spu.spuMemC) // ? |
f9fe4923 | 409 | stop = 1; |
e11ae5c5 | 410 | |
e4f075af | 411 | if(s_chan[ch].prevflags&1) // 1: stop/loop |
3fc2a4c2 | 412 | { |
e4f075af | 413 | if(!(s_chan[ch].prevflags&2)) |
f9fe4923 | 414 | stop = 1; |
e4f075af | 415 | |
416 | start = s_chan[ch].pLoop; | |
3fc2a4c2 | 417 | } |
89cb2058 | 418 | else |
419 | ret = check_irq(ch, start); // hack, see check_irq below.. | |
e11ae5c5 | 420 | |
f9fe4923 | 421 | if(stop) |
422 | { | |
3154bfab | 423 | spu.dwChannelOn &= ~(1<<ch); // -> turn everything off |
f9fe4923 | 424 | s_chan[ch].bStop = 1; |
425 | s_chan[ch].ADSRX.EnvelopeVol = 0; | |
426 | } | |
427 | ||
381ea103 | 428 | predict_nr=(int)start[0]; |
e11ae5c5 | 429 | shift_factor=predict_nr&0xf; |
430 | predict_nr >>= 4; | |
e11ae5c5 | 431 | |
381ea103 | 432 | decode_block_data(s_chan[ch].SB, start + 2, predict_nr, shift_factor); |
e11ae5c5 | 433 | |
381ea103 | 434 | flags=(int)start[1]; |
435 | if(flags&4) | |
436 | s_chan[ch].pLoop=start; // loop adress | |
e11ae5c5 | 437 | |
381ea103 | 438 | start+=16; |
3fc2a4c2 | 439 | |
89cb2058 | 440 | if(flags&1) { // 1: stop/loop |
3fc2a4c2 | 441 | start = s_chan[ch].pLoop; |
89cb2058 | 442 | ret |= check_irq(ch, start); // hack.. :( |
443 | } | |
e11ae5c5 | 444 | |
3154bfab | 445 | if (start - spu.spuMemC >= 0x80000) |
446 | start = spu.spuMemC; | |
e4f075af | 447 | |
381ea103 | 448 | s_chan[ch].pCurr = start; // store values for next cycle |
e4f075af | 449 | s_chan[ch].prevflags = flags; |
e11ae5c5 | 450 | |
451 | return ret; | |
452 | } | |
453 | ||
07a6dd2c | 454 | // do block, but ignore sample data |
455 | static int skip_block(int ch) | |
456 | { | |
457 | unsigned char *start = s_chan[ch].pCurr; | |
458 | int flags = start[1]; | |
89cb2058 | 459 | int ret = check_irq(ch, start); |
07a6dd2c | 460 | |
e4f075af | 461 | if(s_chan[ch].prevflags & 1) |
462 | start = s_chan[ch].pLoop; | |
07a6dd2c | 463 | |
381ea103 | 464 | if(flags & 4) |
be1cb678 | 465 | s_chan[ch].pLoop = start; |
07a6dd2c | 466 | |
e4f075af | 467 | start += 16; |
07a6dd2c | 468 | |
469 | if(flags & 1) | |
e4f075af | 470 | start = s_chan[ch].pLoop; |
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) \ |
650adfd2 | 519 | static noinline int do_samples_##name(int ch, int ns, 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; \ | |
07a6dd2c | 525 | int ret = -1; \ |
526 | int d, fa; \ | |
527 | interp_start; \ | |
528 | \ | |
529 | for (; ns < ns_to; ns++) \ | |
530 | { \ | |
531 | fmod_code; \ | |
532 | \ | |
650adfd2 | 533 | spos += sinc; \ |
07a6dd2c | 534 | while (spos >= 0x10000) \ |
535 | { \ | |
650adfd2 | 536 | fa = SB[sbpos++]; \ |
537 | if(sbpos >= 28) \ | |
07a6dd2c | 538 | { \ |
381ea103 | 539 | sbpos = 0; \ |
07a6dd2c | 540 | d = decode_block(ch); \ |
f2aec10a | 541 | if(d) \ |
650adfd2 | 542 | ret = /*ns_to =*/ ns + 1; \ |
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]) \ | |
562 | sinc = FModChangeFrequency(ch,ns) | |
563 | ||
564 | make_do_samples(default, fmod_recv_check, , | |
565 | StoreInterpolationVal(ch, fa), | |
8cd23d6d | 566 | ChanBuf[ns] = iGetInterpolationVal(ch, spos), ) |
07a6dd2c | 567 | make_do_samples(noint, , fa = s_chan[ch].SB[29], , ChanBuf[ns] = fa, s_chan[ch].SB[29] = fa) |
568 | ||
569 | #define simple_interp_store \ | |
570 | s_chan[ch].SB[28] = 0; \ | |
571 | s_chan[ch].SB[29] = s_chan[ch].SB[30]; \ | |
572 | s_chan[ch].SB[30] = s_chan[ch].SB[31]; \ | |
573 | s_chan[ch].SB[31] = fa; \ | |
574 | s_chan[ch].SB[32] = 1 | |
575 | ||
576 | #define simple_interp_get \ | |
577 | if(sinc<0x10000) /* -> upsampling? */ \ | |
578 | InterpolateUp(ch); /* --> interpolate up */ \ | |
579 | else InterpolateDown(ch); /* --> else down */ \ | |
580 | ChanBuf[ns] = s_chan[ch].SB[29] | |
581 | ||
582 | make_do_samples(simple, , , | |
583 | simple_interp_store, simple_interp_get, ) | |
584 | ||
650adfd2 | 585 | static noinline int do_samples_noise(int ch, int ns, int ns_to) |
07a6dd2c | 586 | { |
b1094d0e | 587 | int level, shift, bit; |
89cb2058 | 588 | int ret = -1, d; |
b1094d0e | 589 | |
07a6dd2c | 590 | s_chan[ch].spos += s_chan[ch].sinc * (ns_to - ns); |
591 | while (s_chan[ch].spos >= 28*0x10000) | |
592 | { | |
89cb2058 | 593 | d = skip_block(ch); |
594 | if (d) | |
595 | ret = ns_to; | |
07a6dd2c | 596 | s_chan[ch].spos -= 28*0x10000; |
597 | } | |
598 | ||
b1094d0e | 599 | // modified from DrHell/shalma, no fraction |
3154bfab | 600 | level = (spu.spuCtrl >> 10) & 0x0f; |
b1094d0e | 601 | level = 0x8000 >> level; |
602 | ||
07a6dd2c | 603 | for (; ns < ns_to; ns++) |
b1094d0e | 604 | { |
3154bfab | 605 | spu.dwNoiseCount += 2; |
606 | if (spu.dwNoiseCount >= level) | |
b1094d0e | 607 | { |
3154bfab | 608 | spu.dwNoiseCount -= level; |
609 | shift = (spu.dwNoiseVal >> 10) & 0x1f; | |
b1094d0e | 610 | bit = (0x69696969 >> shift) & 1; |
3154bfab | 611 | if (spu.dwNoiseVal & 0x8000) |
b1094d0e | 612 | bit ^= 1; |
3154bfab | 613 | spu.dwNoiseVal = (spu.dwNoiseVal << 1) | bit; |
b1094d0e | 614 | } |
615 | ||
3154bfab | 616 | ChanBuf[ns] = (signed short)spu.dwNoiseVal; |
b1094d0e | 617 | } |
07a6dd2c | 618 | |
89cb2058 | 619 | return ret; |
07a6dd2c | 620 | } |
621 | ||
665f33e1 | 622 | #ifdef HAVE_ARMV5 |
3a721c1f | 623 | // asm code; lv and rv must be 0-3fff |
b17618c0 | 624 | extern void mix_chan(int start, int count, int lv, int rv); |
3154bfab | 625 | extern void mix_chan_rvb(int start, int count, int lv, int rv, int *rvb); |
b17618c0 | 626 | #else |
627 | static void mix_chan(int start, int count, int lv, int rv) | |
628 | { | |
629 | int *dst = SSumLR + start * 2; | |
630 | const int *src = ChanBuf + start; | |
631 | int l, r; | |
632 | ||
633 | while (count--) | |
634 | { | |
635 | int sval = *src++; | |
636 | ||
637 | l = (sval * lv) >> 14; | |
638 | r = (sval * rv) >> 14; | |
639 | *dst++ += l; | |
640 | *dst++ += r; | |
641 | } | |
642 | } | |
643 | ||
3154bfab | 644 | static void mix_chan_rvb(int start, int count, int lv, int rv, int *rvb) |
b17618c0 | 645 | { |
646 | int *dst = SSumLR + start * 2; | |
3154bfab | 647 | int *drvb = rvb + start * 2; |
b17618c0 | 648 | const int *src = ChanBuf + start; |
649 | int l, r; | |
650 | ||
651 | while (count--) | |
652 | { | |
653 | int sval = *src++; | |
654 | ||
655 | l = (sval * lv) >> 14; | |
656 | r = (sval * rv) >> 14; | |
657 | *dst++ += l; | |
658 | *dst++ += r; | |
659 | *drvb++ += l; | |
660 | *drvb++ += r; | |
661 | } | |
662 | } | |
663 | #endif | |
664 | ||
b72f17a1 | 665 | // 0x0800-0x0bff Voice 1 |
666 | // 0x0c00-0x0fff Voice 3 | |
650adfd2 | 667 | static noinline void do_decode_bufs(int which, int start, int count) |
b72f17a1 | 668 | { |
669 | const int *src = ChanBuf + start; | |
3154bfab | 670 | unsigned short *dst = &spu.spuMem[0x800/2 + which*0x400/2]; |
671 | int cursor = spu.decode_pos + start; | |
b72f17a1 | 672 | |
673 | while (count-- > 0) | |
674 | { | |
ee9afdbd | 675 | cursor &= 0x1ff; |
b72f17a1 | 676 | dst[cursor] = *src++; |
ee9afdbd | 677 | cursor++; |
b72f17a1 | 678 | } |
679 | ||
680 | // decode_pos is updated and irqs are checked later, after voice loop | |
681 | } | |
682 | ||
ef79bbde P |
683 | //////////////////////////////////////////////////////////////////////// |
684 | // MAIN SPU FUNCTION | |
6d75977b | 685 | // here is the main job handler... |
ef79bbde P |
686 | // basically the whole sound processing is done in this fat func! |
687 | //////////////////////////////////////////////////////////////////////// | |
688 | ||
650adfd2 | 689 | void do_samples(unsigned int cycles_to) |
ef79bbde | 690 | { |
650adfd2 | 691 | const int ns_from = 0; |
692 | int ns,ns_to,ns_len; | |
3154bfab | 693 | int volmult = spu_config.iVolume; |
174c454a | 694 | int ch,d,silentch; |
650adfd2 | 695 | int cycle_diff; |
ef79bbde | 696 | |
3154bfab | 697 | cycle_diff = cycles_to - spu.cycles_played; |
650adfd2 | 698 | if (cycle_diff < -2*1048576 || cycle_diff > 2*1048576) |
699 | { | |
700 | //xprintf("desync %u %d\n", cycles_to, cycle_diff); | |
3154bfab | 701 | spu.cycles_played = cycles_to; |
650adfd2 | 702 | return; |
703 | } | |
e34a4bd3 | 704 | |
650adfd2 | 705 | if (cycle_diff < 2 * 768) |
706 | return; | |
e34a4bd3 | 707 | |
650adfd2 | 708 | ns_to = (cycle_diff / 768 + 1) & ~1; |
709 | if (ns_to > NSSIZE) { | |
710 | // should never happen | |
711 | //xprintf("ns_to oflow %d %d\n", ns_to, NSSIZE); | |
712 | ns_to = NSSIZE; | |
713 | } | |
714 | ||
715 | ////////////////////////////////////////////////////// | |
716 | // special irq handling in the decode buffers (0x0000-0x1000) | |
717 | // we know: | |
718 | // the decode buffers are located in spu memory in the following way: | |
719 | // 0x0000-0x03ff CD audio left | |
720 | // 0x0400-0x07ff CD audio right | |
721 | // 0x0800-0x0bff Voice 1 | |
722 | // 0x0c00-0x0fff Voice 3 | |
723 | // and decoded data is 16 bit for one sample | |
724 | // we assume: | |
725 | // even if voices 1/3 are off or no cd audio is playing, the internal | |
726 | // play positions will move on and wrap after 0x400 bytes. | |
727 | // Therefore: we just need a pointer from spumem+0 to spumem+3ff, and | |
728 | // increase this pointer on each sample by 2 bytes. If this pointer | |
729 | // (or 0x400 offsets of this pointer) hits the spuirq address, we generate | |
730 | // an IRQ. | |
731 | ||
3154bfab | 732 | if (unlikely((spu.spuCtrl & CTRL_IRQ) |
c4c66b22 | 733 | && spu.pSpuIrq < spu.spuMemC+0x1000)) |
650adfd2 | 734 | { |
3154bfab | 735 | int irq_pos = (spu.pSpuIrq - spu.spuMemC) / 2 & 0x1ff; |
736 | int left = (irq_pos - spu.decode_pos) & 0x1ff; | |
650adfd2 | 737 | if (0 < left && left <= ns_to) |
738 | { | |
3154bfab | 739 | //xprintf("decoder irq %x\n", spu.decode_pos); |
650adfd2 | 740 | do_irq(); |
650adfd2 | 741 | } |
742 | } | |
743 | ||
744 | InitREVERB(ns_to); | |
ef79bbde | 745 | |
650adfd2 | 746 | { |
3154bfab | 747 | silentch=~(spu.dwChannelOn|spu.dwNewChannel); |
174c454a | 748 | |
ef79bbde P |
749 | //--------------------------------------------------// |
750 | //- main channel loop -// | |
751 | //--------------------------------------------------// | |
752 | { | |
650adfd2 | 753 | for(ch=0;ch<MAXCHAN;ch++) // loop em all... |
ef79bbde | 754 | { |
3154bfab | 755 | if(spu.dwNewChannel&(1<<ch)) StartSound(ch); // start new sound |
756 | if(!(spu.dwChannelOn&(1<<ch))) continue; // channel not playing? next | |
ef79bbde | 757 | |
07a6dd2c | 758 | if(s_chan[ch].bNoise) |
650adfd2 | 759 | do_samples_noise(ch, ns_from, ns_to); |
3154bfab | 760 | else if(s_chan[ch].bFMod==2 || (s_chan[ch].bFMod==0 && spu_config.iUseInterpolation==0)) |
650adfd2 | 761 | do_samples_noint(ch, ns_from, ns_to); |
3154bfab | 762 | else if(s_chan[ch].bFMod==0 && spu_config.iUseInterpolation==1) |
650adfd2 | 763 | do_samples_simple(ch, ns_from, ns_to); |
07a6dd2c | 764 | else |
650adfd2 | 765 | do_samples_default(ch, ns_from, ns_to); |
766 | ||
e391d21c | 767 | ns_len = ns_to - ns_from; |
ef79bbde | 768 | |
1ab7621a | 769 | MixADSR(ch, ns_from, ns_to); |
770 | ||
b72f17a1 | 771 | if(ch==1 || ch==3) |
772 | { | |
e391d21c | 773 | do_decode_bufs(ch/2, ns_from, ns_len); |
3154bfab | 774 | spu.decode_dirty_ch |= 1<<ch; |
b72f17a1 | 775 | } |
776 | ||
1ab7621a | 777 | if(s_chan[ch].bFMod==2) // fmod freq channel |
e391d21c | 778 | memcpy(&iFMod[ns_from], &ChanBuf[ns_from], ns_len * sizeof(iFMod[0])); |
779 | if(s_chan[ch].bRVBActive) | |
3154bfab | 780 | mix_chan_rvb(ns_from, ns_len, s_chan[ch].iLeftVolume, s_chan[ch].iRightVolume, spu.sRVBStart); |
1775933a | 781 | else |
e391d21c | 782 | mix_chan(ns_from, ns_len, s_chan[ch].iLeftVolume, s_chan[ch].iRightVolume); |
ef79bbde P |
783 | } |
784 | } | |
785 | ||
78c60846 | 786 | // advance "stopped" channels that can cause irqs |
787 | // (all chans are always playing on the real thing..) | |
3154bfab | 788 | if(spu.spuCtrl&CTRL_IRQ) |
78c60846 | 789 | for(ch=0;ch<MAXCHAN;ch++) |
790 | { | |
174c454a | 791 | if(!(silentch&(1<<ch))) continue; // already handled |
3154bfab | 792 | if(spu.dwChannelDead&(1<<ch)) continue; |
793 | if(s_chan[ch].pCurr > spu.pSpuIrq && s_chan[ch].pLoop > spu.pSpuIrq) | |
78c60846 | 794 | continue; |
795 | ||
f2aec10a | 796 | s_chan[ch].spos += s_chan[ch].sinc * (ns_to - ns_from); |
78c60846 | 797 | while(s_chan[ch].spos >= 28 * 0x10000) |
798 | { | |
7e44d49d | 799 | unsigned char *start = s_chan[ch].pCurr; |
78c60846 | 800 | |
fb552464 | 801 | skip_block(ch); |
3154bfab | 802 | if(start == s_chan[ch].pCurr || start - spu.spuMemC < 0x1000) |
78c60846 | 803 | { |
f9fe4923 | 804 | // looping on self or stopped(?) |
3154bfab | 805 | spu.dwChannelDead |= 1<<ch; |
7e44d49d | 806 | s_chan[ch].spos = 0; |
78c60846 | 807 | break; |
808 | } | |
809 | ||
78c60846 | 810 | s_chan[ch].spos -= 28 * 0x10000; |
811 | } | |
812 | } | |
813 | ||
3154bfab | 814 | if(unlikely(silentch & spu.decode_dirty_ch & (1<<1))) // must clear silent channel decode buffers |
b72f17a1 | 815 | { |
3154bfab | 816 | memset(&spu.spuMem[0x800/2], 0, 0x400); |
817 | spu.decode_dirty_ch &= ~(1<<1); | |
b72f17a1 | 818 | } |
3154bfab | 819 | if(unlikely(silentch & spu.decode_dirty_ch & (1<<3))) |
b72f17a1 | 820 | { |
3154bfab | 821 | memset(&spu.spuMem[0xc00/2], 0, 0x400); |
822 | spu.decode_dirty_ch &= ~(1<<3); | |
b72f17a1 | 823 | } |
8680e822 | 824 | |
ef79bbde P |
825 | //---------------------------------------------------// |
826 | // mix XA infos (if any) | |
827 | ||
650adfd2 | 828 | MixXA(ns_to); |
ef79bbde P |
829 | |
830 | /////////////////////////////////////////////////////// | |
831 | // mix all channels (including reverb) into one buffer | |
832 | ||
3154bfab | 833 | if(spu_config.iUseReverb) |
650adfd2 | 834 | REVERBDo(ns_to); |
1775933a | 835 | |
3154bfab | 836 | if((spu.spuCtrl&0x4000)==0) // muted? (rare, don't optimize for this) |
1775933a | 837 | { |
3154bfab | 838 | memset(spu.pS, 0, ns_to * 2 * sizeof(spu.pS[0])); |
839 | spu.pS += ns_to * 2; | |
1775933a | 840 | } |
841 | else | |
650adfd2 | 842 | for (ns = 0; ns < ns_to * 2; ) |
ef79bbde | 843 | { |
9e7a7352 | 844 | d = SSumLR[ns]; SSumLR[ns] = 0; |
845 | d = d * volmult >> 10; | |
1775933a | 846 | ssat32_to_16(d); |
3154bfab | 847 | *spu.pS++ = d; |
97ea4077 | 848 | ns++; |
ef79bbde | 849 | |
9e7a7352 | 850 | d = SSumLR[ns]; SSumLR[ns] = 0; |
851 | d = d * volmult >> 10; | |
1775933a | 852 | ssat32_to_16(d); |
3154bfab | 853 | *spu.pS++ = d; |
97ea4077 | 854 | ns++; |
ef79bbde P |
855 | } |
856 | ||
3154bfab | 857 | spu.cycles_played += ns_to * 768; |
16187bfb | 858 | |
3154bfab | 859 | spu.decode_pos = (spu.decode_pos + ns_to) & 0x1ff; |
650adfd2 | 860 | } |
861 | } | |
ef79bbde | 862 | |
650adfd2 | 863 | void schedule_next_irq(void) |
864 | { | |
865 | unsigned int upd_samples; | |
866 | int ch; | |
ef79bbde | 867 | |
3154bfab | 868 | if (spu.scheduleCallback == NULL) |
650adfd2 | 869 | return; |
e34a4bd3 | 870 | |
650adfd2 | 871 | upd_samples = 44100 / 50; |
e34a4bd3 | 872 | |
650adfd2 | 873 | for (ch = 0; ch < MAXCHAN; ch++) |
874 | { | |
3154bfab | 875 | if (spu.dwChannelDead & (1 << ch)) |
650adfd2 | 876 | continue; |
3154bfab | 877 | if ((unsigned long)(spu.pSpuIrq - s_chan[ch].pCurr) > IRQ_NEAR_BLOCKS * 16 |
878 | && (unsigned long)(spu.pSpuIrq - s_chan[ch].pLoop) > IRQ_NEAR_BLOCKS * 16) | |
650adfd2 | 879 | continue; |
16187bfb | 880 | |
650adfd2 | 881 | scan_for_irq(ch, &upd_samples); |
ef79bbde P |
882 | } |
883 | ||
3154bfab | 884 | if (unlikely(spu.pSpuIrq < spu.spuMemC + 0x1000)) |
650adfd2 | 885 | { |
3154bfab | 886 | int irq_pos = (spu.pSpuIrq - spu.spuMemC) / 2 & 0x1ff; |
887 | int left = (irq_pos - spu.decode_pos) & 0x1ff; | |
650adfd2 | 888 | if (0 < left && left < upd_samples) { |
3154bfab | 889 | //xprintf("decode: %3d (%3d/%3d)\n", left, spu.decode_pos, irq_pos); |
650adfd2 | 890 | upd_samples = left; |
891 | } | |
892 | } | |
16187bfb | 893 | |
650adfd2 | 894 | if (upd_samples < 44100 / 50) |
3154bfab | 895 | spu.scheduleCallback(upd_samples * 768); |
ef79bbde P |
896 | } |
897 | ||
898 | // SPU ASYNC... even newer epsxe func | |
899 | // 1 time every 'cycle' cycles... harhar | |
900 | ||
650adfd2 | 901 | // rearmed: called dynamically now |
554a2220 | 902 | |
650adfd2 | 903 | void CALLBACK SPUasync(unsigned int cycle, unsigned int flags) |
ef79bbde | 904 | { |
650adfd2 | 905 | do_samples(cycle); |
fb552464 | 906 | |
3154bfab | 907 | if (spu.spuCtrl & CTRL_IRQ) |
650adfd2 | 908 | schedule_next_irq(); |
f8edb5bc | 909 | |
650adfd2 | 910 | if (flags & 1) { |
3154bfab | 911 | out_current->feed(spu.pSpuBuffer, (unsigned char *)spu.pS - spu.pSpuBuffer); |
912 | spu.pS = (short *)spu.pSpuBuffer; | |
fb552464 | 913 | |
3154bfab | 914 | if (spu_config.iTempo) { |
650adfd2 | 915 | if (!out_current->busy()) |
916 | // cause more samples to be generated | |
917 | // (and break some games because of bad sync) | |
3154bfab | 918 | spu.cycles_played -= 44100 / 60 / 2 * 768; |
ef79bbde | 919 | } |
650adfd2 | 920 | } |
ef79bbde P |
921 | } |
922 | ||
923 | // SPU UPDATE... new epsxe func | |
924 | // 1 time every 32 hsync lines | |
925 | // (312/32)x50 in pal | |
926 | // (262/32)x60 in ntsc | |
927 | ||
928 | // since epsxe 1.5.2 (linux) uses SPUupdate, not SPUasync, I will | |
929 | // leave that func in the linux port, until epsxe linux is using | |
930 | // the async function as well | |
931 | ||
932 | void CALLBACK SPUupdate(void) | |
933 | { | |
ef79bbde P |
934 | } |
935 | ||
936 | // XA AUDIO | |
937 | ||
938 | void CALLBACK SPUplayADPCMchannel(xa_decode_t *xap) | |
939 | { | |
940 | if(!xap) return; | |
941 | if(!xap->freq) return; // no xa freq ? bye | |
942 | ||
943 | FeedXA(xap); // call main XA feeder | |
944 | } | |
945 | ||
946 | // CDDA AUDIO | |
983a7cfd | 947 | int CALLBACK SPUplayCDDAchannel(short *pcm, int nbytes) |
ef79bbde | 948 | { |
983a7cfd | 949 | if (!pcm) return -1; |
950 | if (nbytes<=0) return -1; | |
ef79bbde | 951 | |
983a7cfd | 952 | return FeedCDDA((unsigned char *)pcm, nbytes); |
ef79bbde P |
953 | } |
954 | ||
6d75977b | 955 | // to be called after state load |
956 | void ClearWorkingState(void) | |
ef79bbde | 957 | { |
97ea4077 | 958 | memset(SSumLR,0,sizeof(SSumLR)); // init some mixing buffers |
6d75977b | 959 | memset(iFMod,0,sizeof(iFMod)); |
3154bfab | 960 | spu.pS=(short *)spu.pSpuBuffer; // setup soundbuffer pointer |
ef79bbde P |
961 | } |
962 | ||
963 | // SETUPSTREAMS: init most of the spu buffers | |
964 | void SetupStreams(void) | |
965 | { | |
966 | int i; | |
967 | ||
3154bfab | 968 | spu.pSpuBuffer = (unsigned char *)malloc(32768); // alloc mixing buffer |
969 | spu.sRVBStart = (int *)malloc(NSSIZE*2*4); // alloc reverb buffer | |
970 | memset(spu.sRVBStart,0,NSSIZE*2*4); | |
ef79bbde | 971 | |
3154bfab | 972 | spu.XAStart = // alloc xa buffer |
ef79bbde | 973 | (uint32_t *)malloc(44100 * sizeof(uint32_t)); |
3154bfab | 974 | spu.XAEnd = spu.XAStart + 44100; |
975 | spu.XAPlay = spu.XAStart; | |
976 | spu.XAFeed = spu.XAStart; | |
ef79bbde | 977 | |
3154bfab | 978 | spu.CDDAStart = // alloc cdda buffer |
983a7cfd | 979 | (uint32_t *)malloc(CDDA_BUFFER_SIZE); |
3154bfab | 980 | spu.CDDAEnd = spu.CDDAStart + 16384; |
981 | spu.CDDAPlay = spu.CDDAStart; | |
982 | spu.CDDAFeed = spu.CDDAStart; | |
ef79bbde P |
983 | |
984 | for(i=0;i<MAXCHAN;i++) // loop sound channels | |
985 | { | |
6d866bb7 | 986 | s_chan[i].ADSRX.SustainLevel = 0xf; // -> init sustain |
650adfd2 | 987 | s_chan[i].ADSRX.SustainIncrease = 1; |
3154bfab | 988 | s_chan[i].pLoop=spu.spuMemC; |
989 | s_chan[i].pCurr=spu.spuMemC; | |
ef79bbde P |
990 | } |
991 | ||
6d75977b | 992 | ClearWorkingState(); |
993 | ||
3154bfab | 994 | spu.bSpuInit=1; // flag: we are inited |
ef79bbde P |
995 | } |
996 | ||
997 | // REMOVESTREAMS: free most buffer | |
998 | void RemoveStreams(void) | |
999 | { | |
3154bfab | 1000 | free(spu.pSpuBuffer); // free mixing buffer |
1001 | spu.pSpuBuffer = NULL; | |
1002 | free(spu.sRVBStart); // free reverb buffer | |
1003 | spu.sRVBStart = NULL; | |
1004 | free(spu.XAStart); // free XA buffer | |
1005 | spu.XAStart = NULL; | |
1006 | free(spu.CDDAStart); // free CDDA buffer | |
1007 | spu.CDDAStart = NULL; | |
ef79bbde P |
1008 | } |
1009 | ||
1010 | // INIT/EXIT STUFF | |
1011 | ||
1012 | // SPUINIT: this func will be called first by the main emu | |
1013 | long CALLBACK SPUinit(void) | |
1014 | { | |
3154bfab | 1015 | spu.spuMemC = (unsigned char *)spu.spuMem; // just small setup |
ef79bbde P |
1016 | memset((void *)&rvb, 0, sizeof(REVERBInfo)); |
1017 | InitADSR(); | |
1018 | ||
3154bfab | 1019 | spu.spuAddr = 0xffffffff; |
1020 | spu.decode_pos = 0; | |
1021 | memset((void *)s_chan, 0, sizeof(s_chan)); | |
c4c66b22 | 1022 | spu.pSpuIrq = spu.spuMemC; |
ef79bbde | 1023 | |
ef79bbde P |
1024 | SetupStreams(); // prepare streaming |
1025 | ||
3154bfab | 1026 | if (spu_config.iVolume == 0) |
1027 | spu_config.iVolume = 768; // 1024 is 1.0 | |
1028 | ||
ef79bbde P |
1029 | return 0; |
1030 | } | |
1031 | ||
1032 | // SPUOPEN: called by main emu after init | |
1033 | long CALLBACK SPUopen(void) | |
1034 | { | |
3154bfab | 1035 | if (spu.bSPUIsOpen) return 0; // security for some stupid main emus |
ef79bbde P |
1036 | |
1037 | SetupSound(); // setup sound (before init!) | |
ef79bbde | 1038 | |
3154bfab | 1039 | spu.bSPUIsOpen = 1; |
ef79bbde P |
1040 | |
1041 | return PSE_SPU_ERR_SUCCESS; | |
1042 | } | |
1043 | ||
1044 | // SPUCLOSE: called before shutdown | |
1045 | long CALLBACK SPUclose(void) | |
1046 | { | |
3154bfab | 1047 | if (!spu.bSPUIsOpen) return 0; // some security |
ef79bbde | 1048 | |
3154bfab | 1049 | spu.bSPUIsOpen = 0; // no more open |
ef79bbde | 1050 | |
07c13dfd | 1051 | out_current->finish(); // no more sound handling |
ef79bbde P |
1052 | |
1053 | return 0; | |
1054 | } | |
1055 | ||
1056 | // SPUSHUTDOWN: called by main emu on final exit | |
1057 | long CALLBACK SPUshutdown(void) | |
1058 | { | |
1059 | SPUclose(); | |
1060 | RemoveStreams(); // no more streaming | |
3154bfab | 1061 | spu.bSpuInit=0; |
ef79bbde P |
1062 | |
1063 | return 0; | |
1064 | } | |
1065 | ||
1066 | // SPUTEST: we don't test, we are always fine ;) | |
1067 | long CALLBACK SPUtest(void) | |
1068 | { | |
1069 | return 0; | |
1070 | } | |
1071 | ||
1072 | // SPUCONFIGURE: call config dialog | |
1073 | long CALLBACK SPUconfigure(void) | |
1074 | { | |
1075 | #ifdef _MACOSX | |
1076 | DoConfiguration(); | |
1077 | #else | |
ee849648 | 1078 | // StartCfgTool("CFG"); |
ef79bbde P |
1079 | #endif |
1080 | return 0; | |
1081 | } | |
1082 | ||
1083 | // SPUABOUT: show about window | |
1084 | void CALLBACK SPUabout(void) | |
1085 | { | |
1086 | #ifdef _MACOSX | |
1087 | DoAbout(); | |
1088 | #else | |
ee849648 | 1089 | // StartCfgTool("ABOUT"); |
ef79bbde P |
1090 | #endif |
1091 | } | |
1092 | ||
1093 | // SETUP CALLBACKS | |
1094 | // this functions will be called once, | |
1095 | // passes a callback that should be called on SPU-IRQ/cdda volume change | |
1096 | void CALLBACK SPUregisterCallback(void (CALLBACK *callback)(void)) | |
1097 | { | |
3154bfab | 1098 | spu.irqCallback = callback; |
ef79bbde P |
1099 | } |
1100 | ||
1101 | void CALLBACK SPUregisterCDDAVolume(void (CALLBACK *CDDAVcallback)(unsigned short,unsigned short)) | |
1102 | { | |
3154bfab | 1103 | spu.cddavCallback = CDDAVcallback; |
ef79bbde P |
1104 | } |
1105 | ||
2b30c129 | 1106 | void CALLBACK SPUregisterScheduleCb(void (CALLBACK *callback)(unsigned int)) |
1107 | { | |
3154bfab | 1108 | spu.scheduleCallback = callback; |
2b30c129 | 1109 | } |
1110 | ||
ef79bbde | 1111 | // COMMON PLUGIN INFO FUNCS |
e906c010 | 1112 | /* |
ef79bbde P |
1113 | char * CALLBACK PSEgetLibName(void) |
1114 | { | |
1115 | return _(libraryName); | |
1116 | } | |
1117 | ||
1118 | unsigned long CALLBACK PSEgetLibType(void) | |
1119 | { | |
1120 | return PSE_LT_SPU; | |
1121 | } | |
1122 | ||
1123 | unsigned long CALLBACK PSEgetLibVersion(void) | |
1124 | { | |
1125 | return (1 << 16) | (6 << 8); | |
1126 | } | |
1127 | ||
1128 | char * SPUgetLibInfos(void) | |
1129 | { | |
1130 | return _(libraryInfo); | |
1131 | } | |
e906c010 | 1132 | */ |
6d866bb7 | 1133 | |
90f1d26c | 1134 | // debug |
174c454a | 1135 | void spu_get_debug_info(int *chans_out, int *run_chans, int *fmod_chans_out, int *noise_chans_out) |
90f1d26c | 1136 | { |
174c454a | 1137 | int ch = 0, fmod_chans = 0, noise_chans = 0, irq_chans = 0; |
90f1d26c | 1138 | |
1139 | for(;ch<MAXCHAN;ch++) | |
1140 | { | |
3154bfab | 1141 | if (!(spu.dwChannelOn & (1<<ch))) |
90f1d26c | 1142 | continue; |
1143 | if (s_chan[ch].bFMod == 2) | |
1144 | fmod_chans |= 1 << ch; | |
1145 | if (s_chan[ch].bNoise) | |
1146 | noise_chans |= 1 << ch; | |
3154bfab | 1147 | if((spu.spuCtrl&CTRL_IRQ) && s_chan[ch].pCurr <= spu.pSpuIrq && s_chan[ch].pLoop <= spu.pSpuIrq) |
174c454a | 1148 | irq_chans |= 1 << ch; |
90f1d26c | 1149 | } |
1150 | ||
3154bfab | 1151 | *chans_out = spu.dwChannelOn; |
1152 | *run_chans = ~spu.dwChannelOn & ~spu.dwChannelDead & irq_chans; | |
90f1d26c | 1153 | *fmod_chans_out = fmod_chans; |
1154 | *noise_chans_out = noise_chans; | |
1155 | } | |
1156 | ||
6d866bb7 | 1157 | // vim:shiftwidth=1:expandtab |