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misc: Use GCC builtins for byte-swap operations
[pcsx_rearmed.git] / plugins / dfsound / registers.c
CommitLineData
ef79bbde
P		 1/***************************************************************************\r
2 registers.c - description\r
3 -------------------\r
4 begin : Wed May 15 2002\r
5 copyright : (C) 2002 by Pete Bernert\r
6 email : BlackDove@addcom.de\r
7 ***************************************************************************/\r
8/***************************************************************************\r
9 * *\r
10 * This program is free software; you can redistribute it and/or modify *\r
11 * it under the terms of the GNU General Public License as published by *\r
12 * the Free Software Foundation; either version 2 of the License, or *\r
13 * (at your option) any later version. See also the license.txt file for *\r
14 * additional informations. *\r
15 * *\r
16 ***************************************************************************/\r
17\r
18#include "stdafx.h"\r
19\r
20#define _IN_REGISTERS\r
21\r
22#include "externals.h"\r
23#include "registers.h"\r
3154bfab 24#include "spu_config.h"\r
ef79bbde 25\r
7e44d49d 26static void SoundOn(int start,int end,unsigned short val);\r
27static void SoundOff(int start,int end,unsigned short val);\r
28static void FModOn(int start,int end,unsigned short val);\r
29static void NoiseOn(int start,int end,unsigned short val);\r
30static void SetVolumeL(unsigned char ch,short vol);\r
31static void SetVolumeR(unsigned char ch,short vol);\r
32static void SetPitch(int ch,unsigned short val);\r
33static void ReverbOn(int start,int end,unsigned short val);\r
34\r
ef79bbde
P		 35////////////////////////////////////////////////////////////////////////\r
36// WRITE REGISTERS: called by main emu\r
37////////////////////////////////////////////////////////////////////////\r
38\r
650adfd2 39static const uint32_t ignore_dupe[8] = {\r
40 // ch 0-15 c40 c80 cc0\r
41 0x7f7f7f7f, 0x7f7f7f7f, 0x7f7f7f7f, 0x7f7f7f7f,\r
42 // ch 16-24 d40 control reverb\r
43 0x7f7f7f7f, 0x7f7f7f7f, 0xff05ff0f, 0xffffffff\r
44};\r
45\r
46void CALLBACK SPUwriteRegister(unsigned long reg, unsigned short val,\r
47 unsigned int cycles)\r
ef79bbde 48{\r
650adfd2 49 int r = reg & 0xfff;\r
50 int rofs = (r - 0xc00) >> 1;\r
3154bfab 51 int changed = spu.regArea[rofs] != val;\r
52 spu.regArea[rofs] = val;\r
650adfd2 53\r
54 if (!changed && (ignore_dupe[rofs >> 5] & (1 << (rofs & 0x1f))))\r
55 return;\r
56 // zero keyon/keyoff?\r
57 if (val == 0 && (r & 0xff8) == 0xd88)\r
58 return;\r
59\r
63a4f6b6 60 do_samples_if_needed(cycles, 0);\r
ef79bbde
P		 61\r
62 if(r>=0x0c00 && r<0x0d80) // some channel info?\r
63 {\r
64 int ch=(r>>4)-0xc0; // calc channel\r
65 switch(r&0x0f)\r
66 {\r
67 //------------------------------------------------// r volume\r
68 case 0: \r
69 SetVolumeL((unsigned char)ch,val);\r
70 break;\r
71 //------------------------------------------------// l volume\r
72 case 2: \r
73 SetVolumeR((unsigned char)ch,val);\r
74 break;\r
75 //------------------------------------------------// pitch\r
76 case 4: \r
77 SetPitch(ch,val);\r
650adfd2 78 goto upd_irq;\r
ef79bbde
P		 79 //------------------------------------------------// start\r
80 case 6: \r
7e44d49d 81 // taken from regArea later\r
ef79bbde
P		 82 break;\r
83 //------------------------------------------------// level with pre-calcs\r
84 case 8:\r
85 {\r
6d866bb7 86 const unsigned long lval=val;\r
ef79bbde 87 //---------------------------------------------//\r
5514a050 88 spu.s_chan[ch].ADSRX.AttackModeExp=(lval&0x8000)?1:0;\r
89 spu.s_chan[ch].ADSRX.AttackRate=(lval>>8) & 0x007f;\r
90 spu.s_chan[ch].ADSRX.DecayRate=(lval>>4) & 0x000f;\r
91 spu.s_chan[ch].ADSRX.SustainLevel=lval & 0x000f;\r
ef79bbde 92 //---------------------------------------------//\r
ef79bbde
P		 93 }\r
94 break;\r
95 //------------------------------------------------// adsr times with pre-calcs\r
96 case 10:\r
97 {\r
6d866bb7 98 const unsigned long lval=val;\r
ef79bbde
P		 99\r
100 //----------------------------------------------//\r
5514a050 101 spu.s_chan[ch].ADSRX.SustainModeExp = (lval&0x8000)?1:0;\r
102 spu.s_chan[ch].ADSRX.SustainIncrease= (lval&0x4000)?0:1;\r
103 spu.s_chan[ch].ADSRX.SustainRate = (lval>>6) & 0x007f;\r
104 spu.s_chan[ch].ADSRX.ReleaseModeExp = (lval&0x0020)?1:0;\r
105 spu.s_chan[ch].ADSRX.ReleaseRate = lval & 0x001f;\r
ef79bbde 106 //----------------------------------------------//\r
ef79bbde
P		 107 }\r
108 break;\r
109 //------------------------------------------------// adsr volume... mmm have to investigate this\r
110 case 12:\r
111 break;\r
112 //------------------------------------------------//\r
113 case 14: // loop?\r
5514a050 114 spu.s_chan[ch].pLoop=spu.spuMemC+((val&~1)<<3);\r
9601ca6d 115 spu.s_chan[ch].bIgnoreLoop = 1;\r
650adfd2 116 goto upd_irq;\r
ef79bbde
P		 117 //------------------------------------------------//\r
118 }\r
ef79bbde
P		 119 return;\r
120 }\r
121\r
122 switch(r)\r
123 {\r
124 //-------------------------------------------------//\r
125 case H_SPUaddr:\r
3154bfab 126 spu.spuAddr = (unsigned long) val<<3;\r
ef79bbde
P		 127 break;\r
128 //-------------------------------------------------//\r
129 case H_SPUdata:\r
5514a050 130 *(unsigned short *)(spu.spuMemC + spu.spuAddr) = val;\r
131 spu.spuAddr += 2;\r
132 spu.spuAddr &= 0x7fffe;\r
ef79bbde
P		 133 break;\r
134 //-------------------------------------------------//\r
135 case H_SPUctrl:\r
3154bfab 136 if (!(spu.spuCtrl & CTRL_IRQ)) {\r
137 spu.spuStat&=~STAT_IRQ;\r
650adfd2 138 if (val & CTRL_IRQ)\r
139 schedule_next_irq();\r
140 }\r
3154bfab 141 spu.spuCtrl=val;\r
ef79bbde
P		 142 break;\r
143 //-------------------------------------------------//\r
144 case H_SPUstat:\r
3154bfab 145 spu.spuStat=val&0xf800;\r
ef79bbde
P		 146 break;\r
147 //-------------------------------------------------//\r
148 case H_SPUReverbAddr:\r
650adfd2 149 goto rvbd;\r
ef79bbde
P		 150 //-------------------------------------------------//\r
151 case H_SPUirqAddr:\r
3154bfab 152 spu.pSpuIrq=spu.spuMemC+(((unsigned long) val<<3)&~0xf);\r
650adfd2 153 goto upd_irq;\r
ef79bbde
P		 154 //-------------------------------------------------//\r
155 case H_SPUrvolL:\r
05c7cec7 156 spu.rvb->VolLeft=val;\r
ef79bbde
P		 157 break;\r
158 //-------------------------------------------------//\r
159 case H_SPUrvolR:\r
05c7cec7 160 spu.rvb->VolRight=val;\r
ef79bbde
P		 161 break;\r
162 //-------------------------------------------------//\r
163\r
164/*\r
165 case H_ExtLeft:\r
166 //auxprintf("EL %d\n",val);\r
167 break;\r
168 //-------------------------------------------------//\r
169 case H_ExtRight:\r
170 //auxprintf("ER %d\n",val);\r
171 break;\r
172 //-------------------------------------------------//\r
173 case H_SPUmvolL:\r
174 //auxprintf("ML %d\n",val);\r
175 break;\r
176 //-------------------------------------------------//\r
177 case H_SPUmvolR:\r
178 //auxprintf("MR %d\n",val);\r
179 break;\r
180 //-------------------------------------------------//\r
181 case H_SPUMute1:\r
182 //auxprintf("M0 %04x\n",val);\r
183 break;\r
184 //-------------------------------------------------//\r
185 case H_SPUMute2:\r
186 //auxprintf("M1 %04x\n",val);\r
187 break;\r
188*/\r
189 //-------------------------------------------------//\r
190 case H_SPUon1:\r
191 SoundOn(0,16,val);\r
192 break;\r
193 //-------------------------------------------------//\r
194 case H_SPUon2:\r
195 SoundOn(16,24,val);\r
196 break;\r
197 //-------------------------------------------------//\r
198 case H_SPUoff1:\r
199 SoundOff(0,16,val);\r
200 break;\r
201 //-------------------------------------------------//\r
202 case H_SPUoff2:\r
203 SoundOff(16,24,val);\r
204 break;\r
205 //-------------------------------------------------//\r
206 case H_CDLeft:\r
7d6997de 207 spu.iLeftXAVol=(int16_t)val;\r
208 if(spu.cddavCallback) spu.cddavCallback(0,(int16_t)val);\r
ef79bbde
P		 209 break;\r
210 case H_CDRight:\r
7d6997de 211 spu.iRightXAVol=(int16_t)val;\r
212 if(spu.cddavCallback) spu.cddavCallback(1,(int16_t)val);\r
ef79bbde
P		 213 break;\r
214 //-------------------------------------------------//\r
215 case H_FMod1:\r
216 FModOn(0,16,val);\r
217 break;\r
218 //-------------------------------------------------//\r
219 case H_FMod2:\r
220 FModOn(16,24,val);\r
221 break;\r
222 //-------------------------------------------------//\r
223 case H_Noise1:\r
224 NoiseOn(0,16,val);\r
225 break;\r
226 //-------------------------------------------------//\r
227 case H_Noise2:\r
228 NoiseOn(16,24,val);\r
229 break;\r
230 //-------------------------------------------------//\r
231 case H_RVBon1:\r
232 ReverbOn(0,16,val);\r
233 break;\r
234 //-------------------------------------------------//\r
235 case H_RVBon2:\r
236 ReverbOn(16,24,val);\r
237 break;\r
238 //-------------------------------------------------//\r
7b2c4897 239 case H_Reverb+0 : goto rvbd;\r
240 case H_Reverb+2 : goto rvbd;\r
241 case H_Reverb+4 : spu.rvb->IIR_ALPHA=(short)val; break;\r
242 case H_Reverb+6 : spu.rvb->ACC_COEF_A=(short)val; break;\r
243 case H_Reverb+8 : spu.rvb->ACC_COEF_B=(short)val; break;\r
244 case H_Reverb+10 : spu.rvb->ACC_COEF_C=(short)val; break;\r
245 case H_Reverb+12 : spu.rvb->ACC_COEF_D=(short)val; break;\r
246 case H_Reverb+14 : spu.rvb->IIR_COEF=(short)val; break;\r
247 case H_Reverb+16 : spu.rvb->FB_ALPHA=(short)val; break;\r
248 case H_Reverb+18 : spu.rvb->FB_X=(short)val; break;\r
249 case H_Reverb+20 : goto rvbd;\r
250 case H_Reverb+22 : goto rvbd;\r
251 case H_Reverb+24 : goto rvbd;\r
252 case H_Reverb+26 : goto rvbd;\r
253 case H_Reverb+28 : goto rvbd;\r
254 case H_Reverb+30 : goto rvbd;\r
255 case H_Reverb+32 : goto rvbd;\r
256 case H_Reverb+34 : goto rvbd;\r
257 case H_Reverb+36 : goto rvbd;\r
258 case H_Reverb+38 : goto rvbd;\r
259 case H_Reverb+40 : goto rvbd;\r
260 case H_Reverb+42 : goto rvbd;\r
261 case H_Reverb+44 : goto rvbd;\r
262 case H_Reverb+46 : goto rvbd;\r
263 case H_Reverb+48 : goto rvbd;\r
264 case H_Reverb+50 : goto rvbd;\r
265 case H_Reverb+52 : goto rvbd;\r
266 case H_Reverb+54 : goto rvbd;\r
267 case H_Reverb+56 : goto rvbd;\r
268 case H_Reverb+58 : goto rvbd;\r
269 case H_Reverb+60 : spu.rvb->IN_COEF_L=(short)val; break;\r
270 case H_Reverb+62 : spu.rvb->IN_COEF_R=(short)val; break;\r
ef79bbde 271 }\r
650adfd2 272 return;\r
273\r
274upd_irq:\r
3154bfab 275 if (spu.spuCtrl & CTRL_IRQ)\r
650adfd2 276 schedule_next_irq();\r
277 return;\r
ef79bbde 278\r
650adfd2 279rvbd:\r
05c7cec7 280 spu.rvb->dirty = 1; // recalculate on next update\r
ef79bbde
P		 281}\r
282\r
283////////////////////////////////////////////////////////////////////////\r
284// READ REGISTER: called by main emu\r
285////////////////////////////////////////////////////////////////////////\r
286\r
287unsigned short CALLBACK SPUreadRegister(unsigned long reg)\r
288{\r
289 const unsigned long r=reg&0xfff;\r
290 \r
ef79bbde
P		 291 if(r>=0x0c00 && r<0x0d80)\r
292 {\r
293 switch(r&0x0f)\r
294 {\r
295 case 12: // get adsr vol\r
296 {\r
297 const int ch=(r>>4)-0xc0;\r
3154bfab 298 if(spu.dwNewChannel&(1<<ch)) return 1; // we are started, but not processed? return 1\r
299 if((spu.dwChannelOn&(1<<ch)) && // same here... we haven't decoded one sample yet, so no envelope yet. return 1 as well\r
5514a050 300 !spu.s_chan[ch].ADSRX.EnvelopeVol)\r
ef79bbde 301 return 1;\r
5514a050 302 return (unsigned short)(spu.s_chan[ch].ADSRX.EnvelopeVol>>16);\r
ef79bbde
P		 303 }\r
304\r
305 case 14: // get loop address\r
306 {\r
307 const int ch=(r>>4)-0xc0;\r
5514a050 308 return (unsigned short)((spu.s_chan[ch].pLoop-spu.spuMemC)>>3);\r
ef79bbde
P		 309 }\r
310 }\r
311 }\r
312\r
313 switch(r)\r
314 {\r
315 case H_SPUctrl:\r
3154bfab 316 return spu.spuCtrl;\r
ef79bbde
P		 317\r
318 case H_SPUstat:\r
acc08532 319 return (spu.spuStat & ~0x3F) | (spu.spuCtrl & 0x3F);\r
ef79bbde
P		 320 \r
321 case H_SPUaddr:\r
3154bfab 322 return (unsigned short)(spu.spuAddr>>3);\r
ef79bbde
P		 323\r
324 case H_SPUdata:\r
325 {\r
5514a050 326 unsigned short s = *(unsigned short *)(spu.spuMemC + spu.spuAddr);\r
327 spu.spuAddr += 2;\r
328 spu.spuAddr &= 0x7fffe;\r
ef79bbde
P		 329 return s;\r
330 }\r
331\r
ef79bbde
P		 332 //case H_SPUIsOn1:\r
333 // return IsSoundOn(0,16);\r
334\r
335 //case H_SPUIsOn2:\r
336 // return IsSoundOn(16,24);\r
337 \r
338 }\r
339\r
3154bfab 340 return spu.regArea[(r-0xc00)>>1];\r
ef79bbde
P		 341}\r
342 \r
343////////////////////////////////////////////////////////////////////////\r
344// SOUND ON register write\r
345////////////////////////////////////////////////////////////////////////\r
346\r
7e44d49d 347static void SoundOn(int start,int end,unsigned short val)\r
ef79bbde
P		 348{\r
349 int ch;\r
350\r
351 for(ch=start;ch<end;ch++,val>>=1) // loop channels\r
352 {\r
77d6fd63 353 if((val&1) && regAreaGet(ch,6)) // mmm... start has to be set before key on !?!\r
ef79bbde 354 {\r
9601ca6d 355 spu.s_chan[ch].bIgnoreLoop = 0;\r
3154bfab 356 spu.dwNewChannel|=(1<<ch);\r
ef79bbde
P		 357 }\r
358 }\r
359}\r
360\r
361////////////////////////////////////////////////////////////////////////\r
362// SOUND OFF register write\r
363////////////////////////////////////////////////////////////////////////\r
364\r
7e44d49d 365static void SoundOff(int start,int end,unsigned short val)\r
ef79bbde
P		 366{\r
367 int ch;\r
368 for(ch=start;ch<end;ch++,val>>=1) // loop channels\r
369 {\r
9ad8abfa 370 if(val&1)\r
ef79bbde 371 {\r
5514a050 372 spu.s_chan[ch].ADSRX.State = ADSR_RELEASE;\r
b00afb77 373\r
374 // Jungle Book - Rhythm 'n Groove\r
375 // - turns off buzzing sound (loop hangs)\r
3154bfab 376 spu.dwNewChannel &= ~(1<<ch);\r
ef79bbde
P		 377 } \r
378 }\r
379}\r
380\r
381////////////////////////////////////////////////////////////////////////\r
382// FMOD register write\r
383////////////////////////////////////////////////////////////////////////\r
384\r
7e44d49d 385static void FModOn(int start,int end,unsigned short val)\r
ef79bbde
P		 386{\r
387 int ch;\r
388\r
389 for(ch=start;ch<end;ch++,val>>=1) // loop channels\r
390 {\r
391 if(val&1) // -> fmod on/off\r
392 {\r
393 if(ch>0) \r
394 {\r
5514a050 395 spu.s_chan[ch].bFMod=1; // --> sound channel\r
396 spu.s_chan[ch-1].bFMod=2; // --> freq channel\r
ef79bbde
P		 397 }\r
398 }\r
399 else\r
400 {\r
5514a050 401 spu.s_chan[ch].bFMod=0; // --> turn off fmod\r
402 if(ch>0&&spu.s_chan[ch-1].bFMod==2)\r
403 spu.s_chan[ch-1].bFMod=0;\r
ef79bbde
P		 404 }\r
405 }\r
406}\r
407\r
408////////////////////////////////////////////////////////////////////////\r
409// NOISE register write\r
410////////////////////////////////////////////////////////////////////////\r
411\r
7e44d49d 412static void NoiseOn(int start,int end,unsigned short val)\r
ef79bbde
P		 413{\r
414 int ch;\r
415\r
416 for(ch=start;ch<end;ch++,val>>=1) // loop channels\r
417 {\r
5514a050 418 spu.s_chan[ch].bNoise=val&1; // -> noise on/off\r
ef79bbde
P		 419 }\r
420}\r
421\r
422////////////////////////////////////////////////////////////////////////\r
423// LEFT VOLUME register write\r
424////////////////////////////////////////////////////////////////////////\r
425\r
426// please note: sweep and phase invert are wrong... but I've never seen\r
427// them used\r
428\r
7e44d49d 429static void SetVolumeL(unsigned char ch,short vol) // LEFT VOLUME\r
ef79bbde 430{\r
ef79bbde
P		 431 if(vol&0x8000) // sweep?\r
432 {\r
433 short sInc=1; // -> sweep up?\r
434 if(vol&0x2000) sInc=-1; // -> or down?\r
435 if(vol&0x1000) vol^=0xffff; // -> mmm... phase inverted? have to investigate this\r
436 vol=((vol&0x7f)+1)/2; // -> sweep: 0..127 -> 0..64\r
437 vol+=vol/(2*sInc); // -> HACK: we don't sweep right now, so we just raise/lower the volume by the half!\r
438 vol*=128;\r
439 }\r
440 else // no sweep:\r
441 {\r
442 if(vol&0x4000) // -> mmm... phase inverted? have to investigate this\r
443 //vol^=0xffff;\r
444 vol=0x3fff-(vol&0x3fff);\r
445 }\r
446\r
447 vol&=0x3fff;\r
5514a050 448 spu.s_chan[ch].iLeftVolume=vol; // store volume\r
ef79bbde
P		 449}\r
450\r
451////////////////////////////////////////////////////////////////////////\r
452// RIGHT VOLUME register write\r
453////////////////////////////////////////////////////////////////////////\r
454\r
7e44d49d 455static void SetVolumeR(unsigned char ch,short vol) // RIGHT VOLUME\r
ef79bbde 456{\r
ef79bbde
P		 457 if(vol&0x8000) // comments... see above :)\r
458 {\r
459 short sInc=1;\r
460 if(vol&0x2000) sInc=-1;\r
461 if(vol&0x1000) vol^=0xffff;\r
462 vol=((vol&0x7f)+1)/2; \r
463 vol+=vol/(2*sInc);\r
464 vol*=128;\r
465 }\r
466 else \r
467 {\r
468 if(vol&0x4000) //vol=vol^=0xffff;\r
469 vol=0x3fff-(vol&0x3fff);\r
470 }\r
471\r
472 vol&=0x3fff;\r
473\r
5514a050 474 spu.s_chan[ch].iRightVolume=vol;\r
ef79bbde
P		 475}\r
476\r
477////////////////////////////////////////////////////////////////////////\r
478// PITCH register write\r
479////////////////////////////////////////////////////////////////////////\r
480\r
7e44d49d 481static void SetPitch(int ch,unsigned short val) // SET PITCH\r
ef79bbde
P		 482{\r
483 int NP;\r
484 if(val>0x3fff) NP=0x3fff; // get pitch val\r
485 else NP=val;\r
486\r
5514a050 487 spu.s_chan[ch].iRawPitch=NP;\r
488 spu.s_chan[ch].sinc=(NP<<4)|8;\r
489 spu.s_chan[ch].sinc_inv=0;\r
de4a0279 490 if (spu_config.iUseInterpolation == 1)\r
491 spu.SB[ch * SB_SIZE + 32] = 1; // -> freq change in simple interpolation mode: set flag\r
ef79bbde
P		 492}\r
493\r
494////////////////////////////////////////////////////////////////////////\r
495// REVERB register write\r
496////////////////////////////////////////////////////////////////////////\r
497\r
7e44d49d 498static void ReverbOn(int start,int end,unsigned short val)\r
ef79bbde
P		 499{\r
500 int ch;\r
501\r
502 for(ch=start;ch<end;ch++,val>>=1) // loop channels\r
503 {\r
5514a050 504 spu.s_chan[ch].bReverb=val&1; // -> reverb on/off\r
ef79bbde
P		 505 }\r
506}\r
ARM optimized PCSX fork