plugins/dfsound/freeze.c

   1 /***************************************************************************\r
   2                           freeze.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_FREEZE\r
  21 \r
  22 #include "externals.h"\r
  23 #include "registers.h"\r
  24 #include "spu.h"\r
  25 \r
  26 ////////////////////////////////////////////////////////////////////////\r
  27 // freeze structs\r
  28 ////////////////////////////////////////////////////////////////////////\r
  29 \r
  30 typedef struct\r
  31 {\r
  32  int            AttackModeExp;\r
  33  int            AttackTime;\r
  34  int            DecayTime;\r
  35  int            SustainLevel;\r
  36  int            SustainModeExp;\r
  37  int            SustainModeDec;\r
  38  int            SustainTime;\r
  39  int            ReleaseModeExp;\r
  40  unsigned int   ReleaseVal;\r
  41  int            ReleaseTime;\r
  42  int            ReleaseStartTime; \r
  43  int            ReleaseVol; \r
  44  int            lTime;\r
  45  int            lVolume;\r
  46 } ADSRInfo;\r
  47 \r
  48 typedef struct\r
  49 {\r
  50  int            State;\r
  51  int            AttackModeExp;\r
  52  int            AttackRate;\r
  53  int            DecayRate;\r
  54  int            SustainLevel;\r
  55  int            SustainModeExp;\r
  56  int            SustainIncrease;\r
  57  int            SustainRate;\r
  58  int            ReleaseModeExp;\r
  59  int            ReleaseRate;\r
  60  int            EnvelopeVol;\r
  61  int            lVolume;\r
  62  int            lDummy1;\r
  63  int            lDummy2;\r
  64 } ADSRInfoEx_orig;\r
  65 \r
  66 typedef struct\r
  67 {\r
  68  // no mutexes used anymore... don't need them to sync access\r
  69  //HANDLE            hMutex;\r
  70 \r
  71  int               bNew;                               // start flag\r
  72 \r
  73  int               iSBPos;                             // mixing stuff\r
  74  int               spos;\r
  75  int               sinc;\r
  76  int               SB[32+32];                          // Pete added another 32 dwords in 1.6 ... prevents overflow issues with gaussian/cubic interpolation (thanx xodnizel!), and can be used for even better interpolations, eh? :)\r
  77  int               sval;\r
  78 \r
  79  int               iStart;                             // start ptr into sound mem\r
  80  int               iCurr;                              // current pos in sound mem\r
  81  int               iLoop;                              // loop ptr in sound mem\r
  82 \r
  83  int               bOn;                                // is channel active (sample playing?)\r
  84  int               bStop;                              // is channel stopped (sample _can_ still be playing, ADSR Release phase)\r
  85  int               bReverb;                            // can we do reverb on this channel? must have ctrl register bit, to get active\r
  86  int               iActFreq;                           // current psx pitch\r
  87  int               iUsedFreq;                          // current pc pitch\r
  88  int               iLeftVolume;                        // left volume\r
  89  int               iLeftVolRaw;                        // left psx volume value\r
  90  int               bIgnoreLoop;                        // ignore loop bit, if an external loop address is used\r
  91  int               iMute;                              // mute mode\r
  92  int               iRightVolume;                       // right volume\r
  93  int               iRightVolRaw;                       // right psx volume value\r
  94  int               iRawPitch;                          // raw pitch (0...3fff)\r
  95  int               iIrqDone;                           // debug irq done flag\r
  96  int               s_1;                                // last decoding infos\r
  97  int               s_2;\r
  98  int               bRVBActive;                         // reverb active flag\r
  99  int               iRVBOffset;                         // reverb offset\r
 100  int               iRVBRepeat;                         // reverb repeat\r
 101  int               bNoise;                             // noise active flag\r
 102  int               bFMod;                              // freq mod (0=off, 1=sound channel, 2=freq channel)\r
 103  int               iRVBNum;                            // another reverb helper\r
 104  int               iOldNoise;                          // old noise val for this channel   \r
 105  ADSRInfo          ADSR;                               // active ADSR settings\r
 106  ADSRInfoEx_orig   ADSRX;                              // next ADSR settings (will be moved to active on sample start)\r
 107 } SPUCHAN_orig;\r
 108 \r
 109 typedef struct\r
 110 {\r
 111  char          szSPUName[8];\r
 112  uint32_t ulFreezeVersion;\r
 113  uint32_t ulFreezeSize;\r
 114  unsigned char cSPUPort[0x200];\r
 115  unsigned char cSPURam[0x80000];\r
 116  xa_decode_t   xaS;     \r
 117 } SPUFreeze_t;\r
 118 \r
 119 typedef struct\r
 120 {\r
 121  unsigned short  spuIrq;\r
 122  unsigned short  decode_pos;\r
 123  uint32_t   pSpuIrq;\r
 124  uint32_t   spuAddr;\r
 125  uint32_t   rvb_cur;\r
 126  uint16_t   xa_left;\r
 127  uint16_t   cdda_left;\r
 128  uint32_t   cycles_played;\r
 129 \r
 130  SPUCHAN_orig s_chan[MAXCHAN];   \r
 131 \r
 132 } SPUOSSFreeze_t;\r
 133 \r
 134 ////////////////////////////////////////////////////////////////////////\r
 135 \r
 136 static SPUOSSFreeze_t * LoadStateV5(SPUFreeze_t * pF, uint32_t cycles);\r
 137 static void LoadStateUnknown(SPUFreeze_t * pF, uint32_t cycles); // unknown format\r
 138 \r
 139 // we want to retain compatibility between versions,\r
 140 // so use original channel struct\r
 141 static void save_channel(SPUCHAN_orig *d, const SPUCHAN *s, int ch)\r
 142 {\r
 143  memset(d, 0, sizeof(*d));\r
 144  d->bNew = !!(spu.dwNewChannel & (1<<ch));\r
 145  d->iSBPos = s->iSBPos;\r
 146  d->spos = s->spos;\r
 147  d->sinc = s->sinc;\r
 148  memcpy(d->SB, spu.SB + ch * SB_SIZE, sizeof(d->SB[0]) * SB_SIZE);\r
 149  d->iStart = (regAreaGetCh(ch, 6) & ~1) << 3;\r
 150  d->iCurr = 0; // set by the caller\r
 151  d->iLoop = 0; // set by the caller\r
 152  d->bOn = !!(spu.dwChannelsAudible & (1<<ch));\r
 153  d->bStop = s->ADSRX.State == ADSR_RELEASE;\r
 154  d->bReverb = s->bReverb;\r
 155  d->iActFreq = 1;\r
 156  d->iUsedFreq = 2;\r
 157  d->iLeftVolume = s->iLeftVolume;\r
 158  // this one is nasty but safe, save compat is important\r
 159  d->bIgnoreLoop = (s->prevflags ^ 2) << 1;\r
 160  d->iRightVolume = s->iRightVolume;\r
 161  d->iRawPitch = s->iRawPitch;\r
 162  d->s_1 = spu.SB[ch * SB_SIZE + 27]; // yes it's reversed\r
 163  d->s_2 = spu.SB[ch * SB_SIZE + 26];\r
 164  d->bRVBActive = s->bRVBActive;\r
 165  d->bNoise = s->bNoise;\r
 166  d->bFMod = s->bFMod;\r
 167  d->ADSRX.State = s->ADSRX.State;\r
 168  d->ADSRX.AttackModeExp = s->ADSRX.AttackModeExp;\r
 169  d->ADSRX.AttackRate = s->ADSRX.AttackRate;\r
 170  d->ADSRX.DecayRate = s->ADSRX.DecayRate;\r
 171  d->ADSRX.SustainLevel = s->ADSRX.SustainLevel;\r
 172  d->ADSRX.SustainModeExp = s->ADSRX.SustainModeExp;\r
 173  d->ADSRX.SustainIncrease = s->ADSRX.SustainIncrease;\r
 174  d->ADSRX.SustainRate = s->ADSRX.SustainRate;\r
 175  d->ADSRX.ReleaseModeExp = s->ADSRX.ReleaseModeExp;\r
 176  d->ADSRX.ReleaseRate = s->ADSRX.ReleaseRate;\r
 177  d->ADSRX.EnvelopeVol = s->ADSRX.EnvelopeVol;\r
 178  d->ADSRX.lVolume = d->bOn; // hmh\r
 179 }\r
 180 \r
 181 static void load_channel(SPUCHAN *d, const SPUCHAN_orig *s, int ch)\r
 182 {\r
 183  memset(d, 0, sizeof(*d));\r
 184  if (s->bNew) spu.dwNewChannel |= 1<<ch;\r
 185  d->iSBPos = s->iSBPos;\r
 186  if ((uint32_t)d->iSBPos >= 28) d->iSBPos = 27;\r
 187  d->spos = s->spos;\r
 188  d->sinc = s->sinc;\r
 189  d->sinc_inv = 0;\r
 190  memcpy(spu.SB + ch * SB_SIZE, s->SB, sizeof(spu.SB[0]) * SB_SIZE);\r
 191  d->pCurr = (void *)((uintptr_t)s->iCurr & 0x7fff0);\r
 192  d->pLoop = (void *)((uintptr_t)s->iLoop & 0x7fff0);\r
 193  d->bReverb = s->bReverb;\r
 194  d->iLeftVolume = s->iLeftVolume;\r
 195  d->iRightVolume = s->iRightVolume;\r
 196  d->iRawPitch = s->iRawPitch;\r
 197  d->bRVBActive = s->bRVBActive;\r
 198  d->bNoise = s->bNoise;\r
 199  d->bFMod = s->bFMod;\r
 200  d->prevflags = (s->bIgnoreLoop >> 1) ^ 2;\r
 201  d->ADSRX.State = s->ADSRX.State;\r
 202  if (s->bStop) d->ADSRX.State = ADSR_RELEASE;\r
 203  d->ADSRX.AttackModeExp = s->ADSRX.AttackModeExp;\r
 204  d->ADSRX.AttackRate = s->ADSRX.AttackRate;\r
 205  d->ADSRX.DecayRate = s->ADSRX.DecayRate;\r
 206  d->ADSRX.SustainLevel = s->ADSRX.SustainLevel;\r
 207  d->ADSRX.SustainModeExp = s->ADSRX.SustainModeExp;\r
 208  d->ADSRX.SustainIncrease = s->ADSRX.SustainIncrease;\r
 209  d->ADSRX.SustainRate = s->ADSRX.SustainRate;\r
 210  d->ADSRX.ReleaseModeExp = s->ADSRX.ReleaseModeExp;\r
 211  d->ADSRX.ReleaseRate = s->ADSRX.ReleaseRate;\r
 212  d->ADSRX.EnvelopeVol = s->ADSRX.EnvelopeVol;\r
 213  if (s->bOn) spu.dwChannelsAudible |= 1<<ch;\r
 214  else d->ADSRX.EnvelopeVol = 0;\r
 215 }\r
 216 \r
 217 // force load from regArea to variables\r
 218 static void load_register(unsigned long reg, unsigned int cycles)\r
 219 {\r
 220  unsigned short *r = &spu.regArea[((reg & 0xfff) - 0xc00) >> 1];\r
 221  *r ^= 1;\r
 222  SPUwriteRegister(reg, *r ^ 1, cycles);\r
 223 }\r
 224 \r
 225 ////////////////////////////////////////////////////////////////////////\r
 226 // SPUFREEZE: called by main emu on savestate load/save\r
 227 ////////////////////////////////////////////////////////////////////////\r
 228 \r
 229 long CALLBACK SPUfreeze(uint32_t ulFreezeMode, SPUFreeze_t * pF,\r
 230  uint32_t cycles)\r
 231 {\r
 232  SPUOSSFreeze_t * pFO = NULL;\r
 233  int i;\r
 234 \r
 235  if(!pF) return 0;                                     // first check\r
 236 \r
 237  if(ulFreezeMode)                                      // info or save?\r
 238   {//--------------------------------------------------//\r
 239    int xa_left = 0, cdda_left = 0;\r
 240    do_samples(cycles, 1);\r
 241 \r
 242    if(ulFreezeMode==1)                                 \r
 243     memset(pF,0,sizeof(SPUFreeze_t)+sizeof(SPUOSSFreeze_t));\r
 244 \r
 245    strcpy(pF->szSPUName,"PBOSS");\r
 246    pF->ulFreezeVersion=5;\r
 247    pF->ulFreezeSize=sizeof(SPUFreeze_t)+sizeof(SPUOSSFreeze_t);\r
 248 \r
 249    if(ulFreezeMode==2) return 1;                       // info mode? ok, bye\r
 250                                                        // save mode:\r
 251    memcpy(pF->cSPURam,spu.spuMem,0x80000);             // copy common infos\r
 252    memcpy(pF->cSPUPort,spu.regArea,0x200);\r
 253 \r
 254    if(spu.xapGlobal && spu.XAPlay!=spu.XAFeed)         // some xa\r
 255     {\r
 256      xa_left = spu.XAFeed - spu.XAPlay;\r
 257      if (xa_left < 0)\r
 258       xa_left = spu.XAEnd - spu.XAPlay + spu.XAFeed - spu.XAStart;\r
 259      pF->xaS = *spu.xapGlobal;\r
 260     }\r
 261    else if (spu.CDDAPlay != spu.CDDAFeed)\r
 262     {\r
 263      // abuse the xa struct to store leftover cdda samples\r
 264      unsigned int *p = spu.CDDAPlay;\r
 265      cdda_left = spu.CDDAFeed - spu.CDDAPlay;\r
 266      if (cdda_left < 0)\r
 267       cdda_left = spu.CDDAEnd - spu.CDDAPlay + spu.CDDAFeed - spu.CDDAStart;\r
 268      if (cdda_left > sizeof(pF->xaS.pcm) / 4)\r
 269       cdda_left = sizeof(pF->xaS.pcm) / 4;\r
 270      if (p + cdda_left <= spu.CDDAEnd)\r
 271       memcpy(pF->xaS.pcm, p, cdda_left * 4);\r
 272      else {\r
 273       memcpy(pF->xaS.pcm, p, (spu.CDDAEnd - p) * 4);\r
 274       memcpy((char *)pF->xaS.pcm + (spu.CDDAEnd - p) * 4, spu.CDDAStart,\r
 275              (cdda_left - (spu.CDDAEnd - p)) * 4);\r
 276      }\r
 277      pF->xaS.nsamples = 0;\r
 278     }\r
 279    else\r
 280     memset(&pF->xaS,0,sizeof(xa_decode_t));            // or clean xa\r
 281 \r
 282    pFO=(SPUOSSFreeze_t *)(pF+1);                       // store special stuff\r
 283 \r
 284    pFO->spuIrq = spu.regArea[(H_SPUirqAddr - 0x0c00) / 2];\r
 285    if(spu.pSpuIrq) pFO->pSpuIrq = spu.pSpuIrq - spu.spuMemC;\r
 286 \r
 287    pFO->spuAddr=spu.spuAddr;\r
 288    if(pFO->spuAddr==0) pFO->spuAddr=0xbaadf00d;\r
 289    pFO->decode_pos = spu.decode_pos;\r
 290    pFO->rvb_cur = spu.rvb->CurrAddr;\r
 291    pFO->xa_left = xa_left;\r
 292    pFO->cdda_left = cdda_left;\r
 293    pFO->cycles_played = spu.cycles_played;\r
 294 \r
 295    for(i=0;i<MAXCHAN;i++)\r
 296     {\r
 297      save_channel(&pFO->s_chan[i],&spu.s_chan[i],i);\r
 298      if(spu.s_chan[i].pCurr)\r
 299       pFO->s_chan[i].iCurr=spu.s_chan[i].pCurr-spu.spuMemC;\r
 300      if(spu.s_chan[i].pLoop)\r
 301       pFO->s_chan[i].iLoop=spu.s_chan[i].pLoop-spu.spuMemC;\r
 302     }\r
 303 \r
 304    return 1;\r
 305    //--------------------------------------------------//\r
 306   }\r
 307                                                        \r
 308  if(ulFreezeMode!=0) return 0;                         // bad mode? bye\r
 309 \r
 310  memcpy(spu.spuMem,pF->cSPURam,0x80000);               // get ram\r
 311  memcpy(spu.regArea,pF->cSPUPort,0x200);\r
 312  spu.bMemDirty = 1;\r
 313 \r
 314  if (!strcmp(pF->szSPUName,"PBOSS") && pF->ulFreezeVersion==5)\r
 315    pFO = LoadStateV5(pF, cycles);\r
 316  else LoadStateUnknown(pF, cycles);\r
 317 \r
 318  spu.XAPlay = spu.XAFeed = spu.XAStart;\r
 319  spu.CDDAPlay = spu.CDDAFeed = spu.CDDAStart;\r
 320  if (pFO && pFO->xa_left && pF->xaS.nsamples) {        // start xa again\r
 321   FeedXA(&pF->xaS);\r
 322   spu.XAPlay = spu.XAFeed - pFO->xa_left;\r
 323   if (spu.XAPlay < spu.XAStart)\r
 324    spu.XAPlay = spu.XAStart;\r
 325  }\r
 326  else if (pFO && pFO->cdda_left) {                     // start cdda again\r
 327   FeedCDDA((void *)pF->xaS.pcm, pFO->cdda_left * 4);\r
 328  }\r
 329 \r
 330  // repair some globals\r
 331  for(i=0;i<=62;i+=2)\r
 332   load_register(H_Reverb+i, cycles);\r
 333  load_register(H_SPUReverbAddr, cycles);\r
 334  load_register(H_SPUrvolL, cycles);\r
 335  load_register(H_SPUrvolR, cycles);\r
 336 \r
 337  load_register(H_SPUctrl, cycles);\r
 338  load_register(H_SPUstat, cycles);\r
 339  load_register(H_CDLeft, cycles);\r
 340  load_register(H_CDRight, cycles);\r
 341 \r
 342  // fix to prevent new interpolations from crashing\r
 343  for(i=0;i<MAXCHAN;i++) spu.SB[i * SB_SIZE + 28]=0;\r
 344 \r
 345  ClearWorkingState();\r
 346 \r
 347  if (spu.spuCtrl & CTRL_IRQ)\r
 348   schedule_next_irq();\r
 349 \r
 350  return 1;\r
 351 }\r
 352 \r
 353 ////////////////////////////////////////////////////////////////////////\r
 354 \r
 355 static SPUOSSFreeze_t * LoadStateV5(SPUFreeze_t * pF, uint32_t cycles)\r
 356 {\r
 357  int i;SPUOSSFreeze_t * pFO;\r
 358 \r
 359  pFO=(SPUOSSFreeze_t *)(pF+1);\r
 360 \r
 361  spu.pSpuIrq = spu.spuMemC + ((spu.regArea[(H_SPUirqAddr - 0x0c00) / 2] << 3) & ~0xf);\r
 362 \r
 363  if(pFO->spuAddr)\r
 364   {\r
 365    if (pFO->spuAddr == 0xbaadf00d) spu.spuAddr = 0;\r
 366    else spu.spuAddr = pFO->spuAddr & 0x7fffe;\r
 367   }\r
 368  spu.decode_pos = pFO->decode_pos & 0x1ff;\r
 369  spu.rvb->CurrAddr = pFO->rvb_cur;\r
 370  spu.cycles_played = pFO->cycles_played ? pFO->cycles_played : cycles;\r
 371 \r
 372  spu.dwNewChannel=0;\r
 373  spu.dwChannelsAudible=0;\r
 374  spu.dwChannelDead=0;\r
 375  for(i=0;i<MAXCHAN;i++)\r
 376   {\r
 377    load_channel(&spu.s_chan[i],&pFO->s_chan[i],i);\r
 378 \r
 379    spu.s_chan[i].pCurr+=(uintptr_t)spu.spuMemC;\r
 380    spu.s_chan[i].pLoop+=(uintptr_t)spu.spuMemC;\r
 381   }\r
 382  return pFO;\r
 383 }\r
 384 \r
 385 ////////////////////////////////////////////////////////////////////////\r
 386 \r
 387 static void LoadStateUnknown(SPUFreeze_t * pF, uint32_t cycles)\r
 388 {\r
 389  int i;\r
 390 \r
 391  for(i=0;i<MAXCHAN;i++)\r
 392   {\r
 393    spu.s_chan[i].pLoop=spu.spuMemC;\r
 394   }\r
 395 \r
 396  spu.dwNewChannel=0;\r
 397  spu.dwChannelsAudible=0;\r
 398  spu.dwChannelDead=0;\r
 399  spu.pSpuIrq=spu.spuMemC;\r
 400  spu.cycles_played = cycles;\r
 401 \r
 402  for(i=0;i<0xc0;i++)\r
 403   {\r
 404    load_register(0x1f801c00 + i*2, cycles);\r
 405   }\r
 406 }\r
 407 \r
 408 ////////////////////////////////////////////////////////////////////////\r
 409 // vim:shiftwidth=1:expandtab\r