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dfsound: Fix issues on big-endian systems
[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
a4621d43 25#include "spu.h"\r
ef79bbde 26\r
7e44d49d 27static void SoundOn(int start,int end,unsigned short val);\r
28static void SoundOff(int start,int end,unsigned short val);\r
29static void FModOn(int start,int end,unsigned short val);\r
30static void NoiseOn(int start,int end,unsigned short val);\r
31static void SetVolumeL(unsigned char ch,short vol);\r
32static void SetVolumeR(unsigned char ch,short vol);\r
33static void SetPitch(int ch,unsigned short val);\r
34static void ReverbOn(int start,int end,unsigned short val);\r
35\r
ef79bbde
P		 36////////////////////////////////////////////////////////////////////////\r
37// WRITE REGISTERS: called by main emu\r
38////////////////////////////////////////////////////////////////////////\r
39\r
650adfd2 40static const uint32_t ignore_dupe[8] = {\r
41 // ch 0-15 c40 c80 cc0\r
42 0x7f7f7f7f, 0x7f7f7f7f, 0x7f7f7f7f, 0x7f7f7f7f,\r
43 // ch 16-24 d40 control reverb\r
44 0x7f7f7f7f, 0x7f7f7f7f, 0xff05ff0f, 0xffffffff\r
45};\r
46\r
47void CALLBACK SPUwriteRegister(unsigned long reg, unsigned short val,\r
48 unsigned int cycles)\r
ef79bbde 49{\r
650adfd2 50 int r = reg & 0xfff;\r
51 int rofs = (r - 0xc00) >> 1;\r
3154bfab 52 int changed = spu.regArea[rofs] != val;\r
53 spu.regArea[rofs] = val;\r
650adfd2 54\r
55 if (!changed && (ignore_dupe[rofs >> 5] & (1 << (rofs & 0x1f))))\r
56 return;\r
57 // zero keyon/keyoff?\r
58 if (val == 0 && (r & 0xff8) == 0xd88)\r
59 return;\r
60\r
63a4f6b6 61 do_samples_if_needed(cycles, 0);\r
ef79bbde
P		 62\r
63 if(r>=0x0c00 && r<0x0d80) // some channel info?\r
64 {\r
65 int ch=(r>>4)-0xc0; // calc channel\r
66 switch(r&0x0f)\r
67 {\r
68 //------------------------------------------------// r volume\r
69 case 0: \r
70 SetVolumeL((unsigned char)ch,val);\r
71 break;\r
72 //------------------------------------------------// l volume\r
73 case 2: \r
74 SetVolumeR((unsigned char)ch,val);\r
75 break;\r
76 //------------------------------------------------// pitch\r
77 case 4: \r
78 SetPitch(ch,val);\r
650adfd2 79 goto upd_irq;\r
ef79bbde
P		 80 //------------------------------------------------// start\r
81 case 6: \r
7e44d49d 82 // taken from regArea later\r
ef79bbde
P		 83 break;\r
84 //------------------------------------------------// level with pre-calcs\r
85 case 8:\r
86 {\r
6d866bb7 87 const unsigned long lval=val;\r
ef79bbde 88 //---------------------------------------------//\r
5514a050 89 spu.s_chan[ch].ADSRX.AttackModeExp=(lval&0x8000)?1:0;\r
90 spu.s_chan[ch].ADSRX.AttackRate=(lval>>8) & 0x007f;\r
91 spu.s_chan[ch].ADSRX.DecayRate=(lval>>4) & 0x000f;\r
92 spu.s_chan[ch].ADSRX.SustainLevel=lval & 0x000f;\r
ef79bbde 93 //---------------------------------------------//\r
ef79bbde
P		 94 }\r
95 break;\r
96 //------------------------------------------------// adsr times with pre-calcs\r
97 case 10:\r
98 {\r
6d866bb7 99 const unsigned long lval=val;\r
ef79bbde
P		 100\r
101 //----------------------------------------------//\r
5514a050 102 spu.s_chan[ch].ADSRX.SustainModeExp = (lval&0x8000)?1:0;\r
103 spu.s_chan[ch].ADSRX.SustainIncrease= (lval&0x4000)?0:1;\r
104 spu.s_chan[ch].ADSRX.SustainRate = (lval>>6) & 0x007f;\r
105 spu.s_chan[ch].ADSRX.ReleaseModeExp = (lval&0x0020)?1:0;\r
106 spu.s_chan[ch].ADSRX.ReleaseRate = lval & 0x001f;\r
ef79bbde 107 //----------------------------------------------//\r
ef79bbde
P		 108 }\r
109 break;\r
110 //------------------------------------------------// adsr volume... mmm have to investigate this\r
111 case 12:\r
112 break;\r
113 //------------------------------------------------//\r
114 case 14: // loop?\r
5514a050 115 spu.s_chan[ch].pLoop=spu.spuMemC+((val&~1)<<3);\r
16f3ca66 116 spu.s_chan[ch].bIgnoreLoop = 1;\r
650adfd2 117 goto upd_irq;\r
ef79bbde
P		 118 //------------------------------------------------//\r
119 }\r
ef79bbde
P		 120 return;\r
121 }\r
122\r
123 switch(r)\r
124 {\r
125 //-------------------------------------------------//\r
126 case H_SPUaddr:\r
3154bfab 127 spu.spuAddr = (unsigned long) val<<3;\r
ef79bbde
P		 128 break;\r
129 //-------------------------------------------------//\r
130 case H_SPUdata:\r
a4621d43 131 *(unsigned short *)(spu.spuMemC + spu.spuAddr) = HTOLE16(val);\r
5514a050 132 spu.spuAddr += 2;\r
133 spu.spuAddr &= 0x7fffe;\r
ef79bbde
P		 134 break;\r
135 //-------------------------------------------------//\r
136 case H_SPUctrl:\r
3154bfab 137 if (!(spu.spuCtrl & CTRL_IRQ)) {\r
138 spu.spuStat&=~STAT_IRQ;\r
650adfd2 139 if (val & CTRL_IRQ)\r
140 schedule_next_irq();\r
141 }\r
3154bfab 142 spu.spuCtrl=val;\r
ef79bbde
P		 143 break;\r
144 //-------------------------------------------------//\r
145 case H_SPUstat:\r
3154bfab 146 spu.spuStat=val&0xf800;\r
ef79bbde
P		 147 break;\r
148 //-------------------------------------------------//\r
149 case H_SPUReverbAddr:\r
650adfd2 150 goto rvbd;\r
ef79bbde
P		 151 //-------------------------------------------------//\r
152 case H_SPUirqAddr:\r
3154bfab 153 spu.pSpuIrq=spu.spuMemC+(((unsigned long) val<<3)&~0xf);\r
650adfd2 154 goto upd_irq;\r
ef79bbde
P		 155 //-------------------------------------------------//\r
156 case H_SPUrvolL:\r
05c7cec7 157 spu.rvb->VolLeft=val;\r
ef79bbde
P		 158 break;\r
159 //-------------------------------------------------//\r
160 case H_SPUrvolR:\r
05c7cec7 161 spu.rvb->VolRight=val;\r
ef79bbde
P		 162 break;\r
163 //-------------------------------------------------//\r
164\r
6c9db47c 165 case H_SPUmvolL:\r
166 case H_SPUmvolR:\r
167 if (val & 0x8000)\r
168 log_unhandled("w master sweep: %08lx %04x\n", reg, val);\r
169 break;\r
170\r
171 case 0x0dac:\r
172 if (val != 4)\r
173 log_unhandled("1f801dac %04x\n", val);\r
174 break;\r
175\r
ef79bbde
P		 176/*\r
177 case H_ExtLeft:\r
178 //auxprintf("EL %d\n",val);\r
179 break;\r
180 //-------------------------------------------------//\r
181 case H_ExtRight:\r
182 //auxprintf("ER %d\n",val);\r
183 break;\r
184 //-------------------------------------------------//\r
185 case H_SPUmvolL:\r
186 //auxprintf("ML %d\n",val);\r
187 break;\r
188 //-------------------------------------------------//\r
189 case H_SPUmvolR:\r
190 //auxprintf("MR %d\n",val);\r
191 break;\r
192 //-------------------------------------------------//\r
193 case H_SPUMute1:\r
194 //auxprintf("M0 %04x\n",val);\r
195 break;\r
196 //-------------------------------------------------//\r
197 case H_SPUMute2:\r
198 //auxprintf("M1 %04x\n",val);\r
199 break;\r
200*/\r
201 //-------------------------------------------------//\r
202 case H_SPUon1:\r
203 SoundOn(0,16,val);\r
204 break;\r
205 //-------------------------------------------------//\r
206 case H_SPUon2:\r
207 SoundOn(16,24,val);\r
208 break;\r
209 //-------------------------------------------------//\r
210 case H_SPUoff1:\r
211 SoundOff(0,16,val);\r
212 break;\r
213 //-------------------------------------------------//\r
214 case H_SPUoff2:\r
215 SoundOff(16,24,val);\r
216 break;\r
217 //-------------------------------------------------//\r
218 case H_CDLeft:\r
b64fb891 219 spu.iLeftXAVol=(int16_t)val;\r
220 if(spu.cddavCallback) spu.cddavCallback(0,(int16_t)val);\r
ef79bbde
P		 221 break;\r
222 case H_CDRight:\r
b64fb891 223 spu.iRightXAVol=(int16_t)val;\r
224 if(spu.cddavCallback) spu.cddavCallback(1,(int16_t)val);\r
ef79bbde
P		 225 break;\r
226 //-------------------------------------------------//\r
227 case H_FMod1:\r
228 FModOn(0,16,val);\r
229 break;\r
230 //-------------------------------------------------//\r
231 case H_FMod2:\r
232 FModOn(16,24,val);\r
233 break;\r
234 //-------------------------------------------------//\r
235 case H_Noise1:\r
236 NoiseOn(0,16,val);\r
237 break;\r
238 //-------------------------------------------------//\r
239 case H_Noise2:\r
240 NoiseOn(16,24,val);\r
241 break;\r
242 //-------------------------------------------------//\r
243 case H_RVBon1:\r
244 ReverbOn(0,16,val);\r
245 break;\r
246 //-------------------------------------------------//\r
247 case H_RVBon2:\r
248 ReverbOn(16,24,val);\r
249 break;\r
250 //-------------------------------------------------//\r
7b2c4897 251 case H_Reverb+0 : goto rvbd;\r
252 case H_Reverb+2 : goto rvbd;\r
253 case H_Reverb+4 : spu.rvb->IIR_ALPHA=(short)val; break;\r
254 case H_Reverb+6 : spu.rvb->ACC_COEF_A=(short)val; break;\r
255 case H_Reverb+8 : spu.rvb->ACC_COEF_B=(short)val; break;\r
256 case H_Reverb+10 : spu.rvb->ACC_COEF_C=(short)val; break;\r
257 case H_Reverb+12 : spu.rvb->ACC_COEF_D=(short)val; break;\r
258 case H_Reverb+14 : spu.rvb->IIR_COEF=(short)val; break;\r
259 case H_Reverb+16 : spu.rvb->FB_ALPHA=(short)val; break;\r
260 case H_Reverb+18 : spu.rvb->FB_X=(short)val; break;\r
261 case H_Reverb+20 : goto rvbd;\r
262 case H_Reverb+22 : goto rvbd;\r
263 case H_Reverb+24 : goto rvbd;\r
264 case H_Reverb+26 : goto rvbd;\r
265 case H_Reverb+28 : goto rvbd;\r
266 case H_Reverb+30 : goto rvbd;\r
267 case H_Reverb+32 : goto rvbd;\r
268 case H_Reverb+34 : goto rvbd;\r
269 case H_Reverb+36 : goto rvbd;\r
270 case H_Reverb+38 : goto rvbd;\r
271 case H_Reverb+40 : goto rvbd;\r
272 case H_Reverb+42 : goto rvbd;\r
273 case H_Reverb+44 : goto rvbd;\r
274 case H_Reverb+46 : goto rvbd;\r
275 case H_Reverb+48 : goto rvbd;\r
276 case H_Reverb+50 : goto rvbd;\r
277 case H_Reverb+52 : goto rvbd;\r
278 case H_Reverb+54 : goto rvbd;\r
279 case H_Reverb+56 : goto rvbd;\r
280 case H_Reverb+58 : goto rvbd;\r
281 case H_Reverb+60 : spu.rvb->IN_COEF_L=(short)val; break;\r
282 case H_Reverb+62 : spu.rvb->IN_COEF_R=(short)val; break;\r
ef79bbde 283 }\r
650adfd2 284 return;\r
285\r
286upd_irq:\r
3154bfab 287 if (spu.spuCtrl & CTRL_IRQ)\r
650adfd2 288 schedule_next_irq();\r
289 return;\r
ef79bbde 290\r
650adfd2 291rvbd:\r
05c7cec7 292 spu.rvb->dirty = 1; // recalculate on next update\r
ef79bbde
P		 293}\r
294\r
295////////////////////////////////////////////////////////////////////////\r
296// READ REGISTER: called by main emu\r
297////////////////////////////////////////////////////////////////////////\r
298\r
299unsigned short CALLBACK SPUreadRegister(unsigned long reg)\r
300{\r
301 const unsigned long r=reg&0xfff;\r
302 \r
ef79bbde
P		 303 if(r>=0x0c00 && r<0x0d80)\r
304 {\r
305 switch(r&0x0f)\r
306 {\r
307 case 12: // get adsr vol\r
308 {\r
309 const int ch=(r>>4)-0xc0;\r
3154bfab 310 if(spu.dwNewChannel&(1<<ch)) return 1; // we are started, but not processed? return 1\r
5aa94fa0 311 if((spu.dwChannelsAudible&(1<<ch)) && // same here... we haven't decoded one sample yet, so no envelope yet. return 1 as well\r
5514a050 312 !spu.s_chan[ch].ADSRX.EnvelopeVol)\r
ef79bbde 313 return 1;\r
5514a050 314 return (unsigned short)(spu.s_chan[ch].ADSRX.EnvelopeVol>>16);\r
ef79bbde
P		 315 }\r
316\r
317 case 14: // get loop address\r
318 {\r
319 const int ch=(r>>4)-0xc0;\r
5514a050 320 return (unsigned short)((spu.s_chan[ch].pLoop-spu.spuMemC)>>3);\r
ef79bbde
P		 321 }\r
322 }\r
323 }\r
324\r
325 switch(r)\r
326 {\r
327 case H_SPUctrl:\r
3154bfab 328 return spu.spuCtrl;\r
ef79bbde
P		 329\r
330 case H_SPUstat:\r
d056f51b 331 return (spu.spuStat & ~0x3F) | (spu.spuCtrl & 0x3F);\r
ef79bbde
P		 332 \r
333 case H_SPUaddr:\r
3154bfab 334 return (unsigned short)(spu.spuAddr>>3);\r
ef79bbde
P		 335\r
336 case H_SPUdata:\r
337 {\r
a4621d43 338 unsigned short s = LE16TOH(*(unsigned short *)(spu.spuMemC + spu.spuAddr));\r
5514a050 339 spu.spuAddr += 2;\r
340 spu.spuAddr &= 0x7fffe;\r
ef79bbde
P		 341 return s;\r
342 }\r
343\r
ef79bbde
P		 344 //case H_SPUIsOn1:\r
345 // return IsSoundOn(0,16);\r
346\r
347 //case H_SPUIsOn2:\r
348 // return IsSoundOn(16,24);\r
349 \r
6c9db47c 350 case H_SPUMute1:\r
351 case H_SPUMute2:\r
352 log_unhandled("r isOn: %08lx\n", reg);\r
353 break;\r
ef79bbde
P		 354 }\r
355\r
3154bfab 356 return spu.regArea[(r-0xc00)>>1];\r
ef79bbde
P		 357}\r
358 \r
359////////////////////////////////////////////////////////////////////////\r
360// SOUND ON register write\r
361////////////////////////////////////////////////////////////////////////\r
362\r
7e44d49d 363static void SoundOn(int start,int end,unsigned short val)\r
ef79bbde
P		 364{\r
365 int ch;\r
366\r
367 for(ch=start;ch<end;ch++,val>>=1) // loop channels\r
368 {\r
5fdcf5cd 369 if((val&1) && regAreaGetCh(ch, 6)) // mmm... start has to be set before key on !?!\r
ef79bbde 370 {\r
16f3ca66 371 spu.s_chan[ch].bIgnoreLoop = 0;\r
3154bfab 372 spu.dwNewChannel|=(1<<ch);\r
ef79bbde
P		 373 }\r
374 }\r
375}\r
376\r
377////////////////////////////////////////////////////////////////////////\r
378// SOUND OFF register write\r
379////////////////////////////////////////////////////////////////////////\r
380\r
7e44d49d 381static void SoundOff(int start,int end,unsigned short val)\r
ef79bbde
P		 382{\r
383 int ch;\r
384 for(ch=start;ch<end;ch++,val>>=1) // loop channels\r
385 {\r
9ad8abfa 386 if(val&1)\r
ef79bbde 387 {\r
5514a050 388 spu.s_chan[ch].ADSRX.State = ADSR_RELEASE;\r
b00afb77 389\r
390 // Jungle Book - Rhythm 'n Groove\r
391 // - turns off buzzing sound (loop hangs)\r
3154bfab 392 spu.dwNewChannel &= ~(1<<ch);\r
ef79bbde
P		 393 } \r
394 }\r
395}\r
396\r
397////////////////////////////////////////////////////////////////////////\r
398// FMOD register write\r
399////////////////////////////////////////////////////////////////////////\r
400\r
7e44d49d 401static void FModOn(int start,int end,unsigned short val)\r
ef79bbde
P		 402{\r
403 int ch;\r
404\r
405 for(ch=start;ch<end;ch++,val>>=1) // loop channels\r
406 {\r
407 if(val&1) // -> fmod on/off\r
408 {\r
409 if(ch>0) \r
410 {\r
5514a050 411 spu.s_chan[ch].bFMod=1; // --> sound channel\r
412 spu.s_chan[ch-1].bFMod=2; // --> freq channel\r
ef79bbde
P		 413 }\r
414 }\r
415 else\r
416 {\r
5514a050 417 spu.s_chan[ch].bFMod=0; // --> turn off fmod\r
418 if(ch>0&&spu.s_chan[ch-1].bFMod==2)\r
419 spu.s_chan[ch-1].bFMod=0;\r
ef79bbde
P		 420 }\r
421 }\r
422}\r
423\r
424////////////////////////////////////////////////////////////////////////\r
425// NOISE register write\r
426////////////////////////////////////////////////////////////////////////\r
427\r
7e44d49d 428static void NoiseOn(int start,int end,unsigned short val)\r
ef79bbde
P		 429{\r
430 int ch;\r
431\r
432 for(ch=start;ch<end;ch++,val>>=1) // loop channels\r
433 {\r
5514a050 434 spu.s_chan[ch].bNoise=val&1; // -> noise on/off\r
ef79bbde
P		 435 }\r
436}\r
437\r
438////////////////////////////////////////////////////////////////////////\r
439// LEFT VOLUME register write\r
440////////////////////////////////////////////////////////////////////////\r
441\r
442// please note: sweep and phase invert are wrong... but I've never seen\r
443// them used\r
444\r
7e44d49d 445static void SetVolumeL(unsigned char ch,short vol) // LEFT VOLUME\r
ef79bbde 446{\r
ef79bbde
P		 447 if(vol&0x8000) // sweep?\r
448 {\r
449 short sInc=1; // -> sweep up?\r
6c9db47c 450 log_unhandled("ch%d sweepl %04x\n", ch, vol);\r
ef79bbde
P		 451 if(vol&0x2000) sInc=-1; // -> or down?\r
452 if(vol&0x1000) vol^=0xffff; // -> mmm... phase inverted? have to investigate this\r
453 vol=((vol&0x7f)+1)/2; // -> sweep: 0..127 -> 0..64\r
454 vol+=vol/(2*sInc); // -> HACK: we don't sweep right now, so we just raise/lower the volume by the half!\r
455 vol*=128;\r
456 }\r
457 else // no sweep:\r
458 {\r
459 if(vol&0x4000) // -> mmm... phase inverted? have to investigate this\r
460 //vol^=0xffff;\r
461 vol=0x3fff-(vol&0x3fff);\r
462 }\r
463\r
464 vol&=0x3fff;\r
5514a050 465 spu.s_chan[ch].iLeftVolume=vol; // store volume\r
ef79bbde
P		 466}\r
467\r
468////////////////////////////////////////////////////////////////////////\r
469// RIGHT VOLUME register write\r
470////////////////////////////////////////////////////////////////////////\r
471\r
7e44d49d 472static void SetVolumeR(unsigned char ch,short vol) // RIGHT VOLUME\r
ef79bbde 473{\r
ef79bbde
P		 474 if(vol&0x8000) // comments... see above :)\r
475 {\r
476 short sInc=1;\r
6c9db47c 477 log_unhandled("ch%d sweepr %04x\n", ch, vol);\r
ef79bbde
P		 478 if(vol&0x2000) sInc=-1;\r
479 if(vol&0x1000) vol^=0xffff;\r
480 vol=((vol&0x7f)+1)/2; \r
481 vol+=vol/(2*sInc);\r
482 vol*=128;\r
483 }\r
484 else \r
485 {\r
486 if(vol&0x4000) //vol=vol^=0xffff;\r
487 vol=0x3fff-(vol&0x3fff);\r
488 }\r
489\r
490 vol&=0x3fff;\r
491\r
5514a050 492 spu.s_chan[ch].iRightVolume=vol;\r
ef79bbde
P		 493}\r
494\r
495////////////////////////////////////////////////////////////////////////\r
496// PITCH register write\r
497////////////////////////////////////////////////////////////////////////\r
498\r
7e44d49d 499static void SetPitch(int ch,unsigned short val) // SET PITCH\r
ef79bbde
P		 500{\r
501 int NP;\r
502 if(val>0x3fff) NP=0x3fff; // get pitch val\r
503 else NP=val;\r
504\r
f3fa20c2 505 spu.s_chan[ch].iRawPitch = NP;\r
506 spu.s_chan[ch].sinc = NP << 4;\r
507 spu.s_chan[ch].sinc_inv = 0;\r
508 spu.SB[ch * SB_SIZE + 32] = 1; // -> freq change in simple interpolation mode: set flag\r
1d5d35bc 509\r
510 // don't mess spu.dwChannelsAudible as adsr runs independently\r
ef79bbde
P		 511}\r
512\r
513////////////////////////////////////////////////////////////////////////\r
514// REVERB register write\r
515////////////////////////////////////////////////////////////////////////\r
516\r
7e44d49d 517static void ReverbOn(int start,int end,unsigned short val)\r
ef79bbde
P		 518{\r
519 int ch;\r
520\r
521 for(ch=start;ch<end;ch++,val>>=1) // loop channels\r
522 {\r
5514a050 523 spu.s_chan[ch].bReverb=val&1; // -> reverb on/off\r
ef79bbde
P		 524 }\r
525}\r
ARM optimized PCSX fork