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 <assert.h>\r
  19 #include "stdafx.h"\r
  20 \r
  21 #define _IN_FREEZE\r
  22 \r
  23 #include "externals.h"\r
  24 #include "registers.h"\r
  25 #include "spu.h"\r
  26 \r
  27 ////////////////////////////////////////////////////////////////////////\r
  28 // freeze structs\r
  29 ////////////////////////////////////////////////////////////////////////\r
  30 \r
  31 typedef struct\r
  32 {\r
  33  int            AttackModeExp;\r
  34  int            AttackTime;\r
  35  int            DecayTime;\r
  36  int            SustainLevel;\r
  37  int            SustainModeExp;\r
  38  int            SustainModeDec;\r
  39  int            SustainTime;\r
  40  int            ReleaseModeExp;\r
  41  unsigned int   ReleaseVal;\r
  42  int            ReleaseTime;\r
  43  int            ReleaseStartTime; \r
  44  int            ReleaseVol; \r
  45  int            lTime;\r
  46  int            lVolume;\r
  47 } ADSRInfo;\r
  48 \r
  49 typedef struct\r
  50 {\r
  51  int            State;\r
  52  int            AttackModeExp;\r
  53  int            AttackRate;\r
  54  int            DecayRate;\r
  55  int            SustainLevel;\r
  56  int            SustainModeExp;\r
  57  int            SustainIncrease;\r
  58  int            SustainRate;\r
  59  int            ReleaseModeExp;\r
  60  int            ReleaseRate;\r
  61  int            EnvelopeVol;\r
  62  int            lVolume;\r
  63  int            lDummy1;\r
  64  int            lDummy2;\r
  65 } ADSRInfoEx_orig;\r
  66 \r
  67 typedef struct\r
  68 {\r
  69  // no mutexes used anymore... don't need them to sync access\r
  70  //HANDLE            hMutex;\r
  71 \r
  72  int               bNew;                               // start flag\r
  73 \r
  74  int               iSBPos;                             // mixing stuff\r
  75  int               spos;\r
  76  int               sinc;\r
  77  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
  78  int               sval;\r
  79 \r
  80  int               iStart;                             // start ptr into sound mem\r
  81  int               iCurr;                              // current pos in sound mem\r
  82  int               iLoop;                              // loop ptr in sound mem\r
  83 \r
  84  int               bOn;                                // is channel active (sample playing?)\r
  85  int               bStop;                              // is channel stopped (sample _can_ still be playing, ADSR Release phase)\r
  86  int               bReverb;                            // can we do reverb on this channel? must have ctrl register bit, to get active\r
  87  int               iActFreq;                           // current psx pitch\r
  88  int               iUsedFreq;                          // current pc pitch\r
  89  int               iLeftVolume;                        // left volume\r
  90  int               iLeftVolRaw;                        // left psx volume value\r
  91  int               bIgnoreLoop;                        // ignore loop bit, if an external loop address is used\r
  92  int               iMute;                              // mute mode\r
  93  int               iRightVolume;                       // right volume\r
  94  int               iRightVolRaw;                       // right psx volume value\r
  95  int               iRawPitch;                          // raw pitch (0...3fff)\r
  96  int               iIrqDone;                           // debug irq done flag\r
  97  int               s_1;                                // last decoding infos\r
  98  int               s_2;\r
  99  int               bRVBActive;                         // reverb active flag\r
 100  int               iRVBOffset;                         // reverb offset\r
 101  int               iRVBRepeat;                         // reverb repeat\r
 102  int               bNoise;                             // noise active flag\r
 103  int               bFMod;                              // freq mod (0=off, 1=sound channel, 2=freq channel)\r
 104  int               iRVBNum;                            // another reverb helper\r
 105  int               iOldNoise;                          // old noise val for this channel   \r
 106  ADSRInfo          ADSR;                               // active ADSR settings\r
 107  ADSRInfoEx_orig   ADSRX;                              // next ADSR settings (will be moved to active on sample start)\r
 108 } SPUCHAN_orig;\r
 109 \r
 110 typedef struct SPUFreeze\r
 111 {\r
 112  char          szSPUName[8];\r
 113  uint32_t ulFreezeVersion;\r
 114  uint32_t ulFreezeSize;\r
 115  unsigned char cSPUPort[0x200];\r
 116  unsigned char cSPURam[0x80000];\r
 117  xa_decode_t   xaS;     \r
 118 } SPUFreeze_t;\r
 119 \r
 120 typedef struct\r
 121 {\r
 122  unsigned short  spuIrq;\r
 123  unsigned short  decode_pos;\r
 124  uint32_t   pSpuIrq;\r
 125  uint32_t   spuAddr;\r
 126  uint32_t   rvb_cur;\r
 127  uint16_t   xa_left;\r
 128  uint16_t   cdda_left;\r
 129  uint32_t   cycles_played;\r
 130 \r
 131  SPUCHAN_orig s_chan[MAXCHAN];   \r
 132 \r
 133  uint32_t   cycles_dma_end;\r
 134  uint32_t   decode_dirty_ch;\r
 135  uint32_t   dwNoiseVal;\r
 136  uint32_t   dwNoiseCount;\r
 137  uint32_t   XARepeat;\r
 138  uint32_t   XALastVal;\r
 139  uint32_t   last_keyon_cycles;\r
 140 \r
 141 } SPUOSSFreeze_t;\r
 142 \r
 143 ////////////////////////////////////////////////////////////////////////\r
 144 \r
 145 static SPUOSSFreeze_t * LoadStateV5(SPUFreeze_t * pF, uint32_t cycles);\r
 146 static void LoadStateUnknown(SPUFreeze_t * pF, uint32_t cycles); // unknown format\r
 147 \r
 148 // we want to retain compatibility between versions,\r
 149 // so use original channel struct\r
 150 static void save_channel(SPUCHAN_orig *d, const SPUCHAN *s, int ch)\r
 151 {\r
 152  memset(d, 0, sizeof(*d));\r
 153  d->bNew = !!(spu.dwNewChannel & (1<<ch));\r
 154  d->iSBPos = s->iSBPos;\r
 155  d->spos = s->spos;\r
 156  d->sinc = s->sinc;\r
 157  assert(sizeof(d->SB) >= sizeof(spu.sb[ch]));\r
 158  memcpy(d->SB, &spu.sb[ch], sizeof(spu.sb[ch]));\r
 159  d->iStart = (regAreaGetCh(ch, 6) & ~1) << 3;\r
 160  d->iCurr = 0; // set by the caller\r
 161  d->iLoop = 0; // set by the caller\r
 162  d->bOn = !!(spu.dwChannelsAudible & (1<<ch));\r
 163  d->bStop = s->ADSRX.State == ADSR_RELEASE;\r
 164  d->bReverb = s->bReverb;\r
 165  d->iActFreq = 1;\r
 166  d->iUsedFreq = 2;\r
 167  d->iLeftVolume = s->iLeftVolume;\r
 168  // this one is nasty but safe, save compat is important\r
 169  d->bIgnoreLoop = (s->prevflags ^ 2) << 1;\r
 170  d->iRightVolume = s->iRightVolume;\r
 171  d->iRawPitch = s->iRawPitch;\r
 172  d->s_1 = spu.sb[ch].SB[27]; // yes it's reversed\r
 173  d->s_2 = spu.sb[ch].SB[26];\r
 174  d->bRVBActive = s->bRVBActive;\r
 175  d->bNoise = s->bNoise;\r
 176  d->bFMod = s->bFMod;\r
 177  d->ADSRX.State = s->ADSRX.State;\r
 178  d->ADSRX.AttackModeExp = s->ADSRX.AttackModeExp;\r
 179  d->ADSRX.AttackRate = s->ADSRX.AttackRate;\r
 180  d->ADSRX.DecayRate = s->ADSRX.DecayRate;\r
 181  d->ADSRX.SustainLevel = s->ADSRX.SustainLevel;\r
 182  d->ADSRX.SustainModeExp = s->ADSRX.SustainModeExp;\r
 183  d->ADSRX.SustainIncrease = s->ADSRX.SustainIncrease;\r
 184  d->ADSRX.SustainRate = s->ADSRX.SustainRate;\r
 185  d->ADSRX.ReleaseModeExp = s->ADSRX.ReleaseModeExp;\r
 186  d->ADSRX.ReleaseRate = s->ADSRX.ReleaseRate;\r
 187  d->ADSRX.EnvelopeVol = s->ADSRX.EnvelopeVol;\r
 188  d->ADSRX.lVolume = d->bOn; // hmh\r
 189 }\r
 190 \r
 191 static void load_channel(SPUCHAN *d, const SPUCHAN_orig *s, int ch)\r
 192 {\r
 193  memset(d, 0, sizeof(*d));\r
 194  if (s->bNew) spu.dwNewChannel |= 1<<ch;\r
 195  d->iSBPos = s->iSBPos;\r
 196  if ((uint32_t)d->iSBPos >= 28) d->iSBPos = 27;\r
 197  d->spos = s->spos;\r
 198  d->sinc = s->sinc;\r
 199  d->sinc_inv = 0;\r
 200  memcpy(&spu.sb[ch], s->SB, sizeof(spu.sb[ch]));\r
 201  d->pCurr = (void *)((uintptr_t)s->iCurr & 0x7fff0);\r
 202  d->pLoop = (void *)((uintptr_t)s->iLoop & 0x7fff0);\r
 203  d->bReverb = s->bReverb;\r
 204  d->iLeftVolume = s->iLeftVolume;\r
 205  d->iRightVolume = s->iRightVolume;\r
 206  d->iRawPitch = s->iRawPitch;\r
 207  d->bRVBActive = s->bRVBActive;\r
 208  d->bNoise = s->bNoise;\r
 209  d->bFMod = s->bFMod;\r
 210  d->prevflags = (s->bIgnoreLoop >> 1) ^ 2;\r
 211  d->ADSRX.State = s->ADSRX.State;\r
 212  if (s->bStop) d->ADSRX.State = ADSR_RELEASE;\r
 213  d->ADSRX.AttackModeExp = s->ADSRX.AttackModeExp;\r
 214  d->ADSRX.AttackRate = s->ADSRX.AttackRate;\r
 215  d->ADSRX.DecayRate = s->ADSRX.DecayRate;\r
 216  d->ADSRX.SustainLevel = s->ADSRX.SustainLevel;\r
 217  d->ADSRX.SustainModeExp = s->ADSRX.SustainModeExp;\r
 218  d->ADSRX.SustainIncrease = s->ADSRX.SustainIncrease;\r
 219  d->ADSRX.SustainRate = s->ADSRX.SustainRate;\r
 220  d->ADSRX.ReleaseModeExp = s->ADSRX.ReleaseModeExp;\r
 221  d->ADSRX.ReleaseRate = s->ADSRX.ReleaseRate;\r
 222  d->ADSRX.EnvelopeVol = s->ADSRX.EnvelopeVol;\r
 223  if (s->bOn) spu.dwChannelsAudible |= 1<<ch;\r
 224  else d->ADSRX.EnvelopeVol = 0;\r
 225 }\r
 226 \r
 227 // force load from regArea to variables\r
 228 static void load_register(unsigned long reg, unsigned int cycles)\r
 229 {\r
 230  unsigned short *r = &spu.regArea[((reg & 0xfff) - 0xc00) >> 1];\r
 231  *r ^= 1;\r
 232  SPUwriteRegister(reg, *r ^ 1, cycles);\r
 233 }\r
 234 \r
 235 ////////////////////////////////////////////////////////////////////////\r
 236 // SPUFREEZE: called by main emu on savestate load/save\r
 237 ////////////////////////////////////////////////////////////////////////\r
 238 \r
 239 long CALLBACK SPUfreeze(unsigned int ulFreezeMode, SPUFreeze_t * pF,\r
 240  unsigned int cycles)\r
 241 {\r
 242  SPUOSSFreeze_t * pFO = NULL;\r
 243  int i;\r
 244 \r
 245  if(!pF) return 0;                                     // first check\r
 246 \r
 247  if(ulFreezeMode)                                      // info or save?\r
 248   {//--------------------------------------------------//\r
 249    int xa_left = 0, cdda_left = 0;\r
 250    do_samples(cycles, 1);\r
 251 \r
 252    if(ulFreezeMode==1)                                 \r
 253     memset(pF,0,sizeof(SPUFreeze_t)+sizeof(SPUOSSFreeze_t));\r
 254 \r
 255    strcpy(pF->szSPUName,"PBOSS");\r
 256    pF->ulFreezeVersion=5;\r
 257    pF->ulFreezeSize=sizeof(SPUFreeze_t)+sizeof(SPUOSSFreeze_t);\r
 258 \r
 259    if(ulFreezeMode==2) return 1;                       // info mode? ok, bye\r
 260                                                        // save mode:\r
 261    regAreaGet(H_SPUctrl) = spu.spuCtrl;\r
 262    regAreaGet(H_SPUstat) = spu.spuStat;\r
 263    memcpy(pF->cSPURam,spu.spuMem,0x80000);             // copy common infos\r
 264    memcpy(pF->cSPUPort,spu.regArea,0x200);\r
 265 \r
 266    if(spu.xapGlobal && spu.XAPlay!=spu.XAFeed)         // some xa\r
 267     {\r
 268      xa_left = spu.XAFeed - spu.XAPlay;\r
 269      if (xa_left < 0)\r
 270       xa_left = spu.XAEnd - spu.XAPlay + spu.XAFeed - spu.XAStart;\r
 271      pF->xaS = *spu.xapGlobal;\r
 272     }\r
 273    else if (spu.CDDAPlay != spu.CDDAFeed)\r
 274     {\r
 275      // abuse the xa struct to store leftover cdda samples\r
 276      unsigned int *p = spu.CDDAPlay;\r
 277      cdda_left = spu.CDDAFeed - spu.CDDAPlay;\r
 278      if (cdda_left < 0)\r
 279       cdda_left = spu.CDDAEnd - spu.CDDAPlay + spu.CDDAFeed - spu.CDDAStart;\r
 280      if (cdda_left > sizeof(pF->xaS.pcm) / 4)\r
 281       cdda_left = sizeof(pF->xaS.pcm) / 4;\r
 282      if (p + cdda_left <= spu.CDDAEnd)\r
 283       memcpy(pF->xaS.pcm, p, cdda_left * 4);\r
 284      else {\r
 285       memcpy(pF->xaS.pcm, p, (spu.CDDAEnd - p) * 4);\r
 286       memcpy((char *)pF->xaS.pcm + (spu.CDDAEnd - p) * 4, spu.CDDAStart,\r
 287              (cdda_left - (spu.CDDAEnd - p)) * 4);\r
 288      }\r
 289      pF->xaS.nsamples = 0;\r
 290     }\r
 291    else\r
 292     memset(&pF->xaS,0,sizeof(xa_decode_t));            // or clean xa\r
 293 \r
 294    pFO=(SPUOSSFreeze_t *)(pF+1);                       // store special stuff\r
 295 \r
 296    pFO->spuIrq = spu.regArea[(H_SPUirqAddr - 0x0c00) / 2];\r
 297    if(spu.pSpuIrq) pFO->pSpuIrq = spu.pSpuIrq - spu.spuMemC;\r
 298 \r
 299    pFO->spuAddr=spu.spuAddr;\r
 300    if(pFO->spuAddr==0) pFO->spuAddr=0xbaadf00d;\r
 301    pFO->decode_pos = spu.decode_pos;\r
 302    pFO->rvb_cur = spu.rvb->CurrAddr;\r
 303    pFO->xa_left = xa_left;\r
 304    pFO->cdda_left = cdda_left;\r
 305    pFO->cycles_played = spu.cycles_played;\r
 306    pFO->cycles_dma_end = spu.cycles_dma_end;\r
 307    pFO->decode_dirty_ch = spu.decode_dirty_ch;\r
 308    pFO->dwNoiseVal = spu.dwNoiseVal;\r
 309    pFO->dwNoiseCount = spu.dwNoiseCount;\r
 310    pFO->XARepeat = spu.XARepeat;\r
 311    pFO->XALastVal = spu.XALastVal;\r
 312    pFO->last_keyon_cycles = spu.last_keyon_cycles;\r
 313 \r
 314    for(i=0;i<MAXCHAN;i++)\r
 315     {\r
 316      save_channel(&pFO->s_chan[i],&spu.s_chan[i],i);\r
 317      if(spu.s_chan[i].pCurr)\r
 318       pFO->s_chan[i].iCurr=spu.s_chan[i].pCurr-spu.spuMemC;\r
 319      if(spu.s_chan[i].pLoop)\r
 320       pFO->s_chan[i].iLoop=spu.s_chan[i].pLoop-spu.spuMemC;\r
 321     }\r
 322 \r
 323    return 1;\r
 324    //--------------------------------------------------//\r
 325   }\r
 326                                                        \r
 327  if(ulFreezeMode!=0) return 0;                         // bad mode? bye\r
 328 \r
 329  memcpy(spu.spuMem,pF->cSPURam,0x80000);               // get ram\r
 330  memcpy(spu.regArea,pF->cSPUPort,0x200);\r
 331  spu.bMemDirty = 1;\r
 332  spu.spuCtrl = regAreaGet(H_SPUctrl);\r
 333  spu.spuStat = regAreaGet(H_SPUstat);\r
 334 \r
 335  if (!strcmp(pF->szSPUName,"PBOSS") && pF->ulFreezeVersion==5)\r
 336    pFO = LoadStateV5(pF, cycles);\r
 337  else LoadStateUnknown(pF, cycles);\r
 338 \r
 339  spu.XAPlay = spu.XAFeed = spu.XAStart;\r
 340  spu.CDDAPlay = spu.CDDAFeed = spu.CDDAStart;\r
 341  spu.cdClearSamples = 512;\r
 342  if (pFO && pFO->xa_left && pF->xaS.nsamples) {        // start xa again\r
 343   FeedXA(&pF->xaS);\r
 344   spu.XAPlay = spu.XAFeed - pFO->xa_left;\r
 345   if (spu.XAPlay < spu.XAStart)\r
 346    spu.XAPlay = spu.XAStart;\r
 347  }\r
 348  else if (pFO && pFO->cdda_left) {                     // start cdda again\r
 349   FeedCDDA((void *)pF->xaS.pcm, pFO->cdda_left * 4);\r
 350  }\r
 351 \r
 352  // not in old savestates\r
 353  spu.cycles_dma_end = 0;\r
 354  spu.decode_dirty_ch = spu.dwChannelsAudible & 0x0a;\r
 355  spu.dwNoiseVal = 0;\r
 356  spu.dwNoiseCount = 0;\r
 357  spu.XARepeat = 0;\r
 358  spu.XALastVal = 0;\r
 359  spu.last_keyon_cycles = cycles - 16*786u;\r
 360  if (pFO && pF->ulFreezeSize >= sizeof(*pF) + sizeof(*pFO)) {\r
 361   spu.cycles_dma_end = pFO->cycles_dma_end;\r
 362   spu.decode_dirty_ch = pFO->decode_dirty_ch;\r
 363   spu.dwNoiseVal = pFO->dwNoiseVal;\r
 364   spu.dwNoiseCount = pFO->dwNoiseCount;\r
 365   spu.XARepeat = pFO->XARepeat;\r
 366   spu.XALastVal = pFO->XALastVal;\r
 367   spu.last_keyon_cycles = pFO->last_keyon_cycles;\r
 368  }\r
 369 \r
 370  // repair some globals\r
 371  for(i=0;i<=62;i+=2)\r
 372   load_register(H_Reverb+i, cycles);\r
 373  load_register(H_SPUReverbAddr, cycles);\r
 374  load_register(H_SPUrvolL, cycles);\r
 375  load_register(H_SPUrvolR, cycles);\r
 376  load_register(H_CDLeft, cycles);\r
 377  load_register(H_CDRight, cycles);\r
 378 \r
 379  // reverb\r
 380  spu.rvb->StartAddr = regAreaGet(H_SPUReverbAddr) << 2;\r
 381  if (spu.rvb->CurrAddr < spu.rvb->StartAddr)\r
 382   spu.rvb->CurrAddr = spu.rvb->StartAddr;\r
 383  // fix to prevent new interpolations from crashing\r
 384  spu.interpolation = -1;\r
 385 \r
 386  ClearWorkingState();\r
 387 \r
 388  if (spu.spuCtrl & CTRL_IRQ)\r
 389   schedule_next_irq();\r
 390 \r
 391  return 1;\r
 392 }\r
 393 \r
 394 ////////////////////////////////////////////////////////////////////////\r
 395 \r
 396 static SPUOSSFreeze_t * LoadStateV5(SPUFreeze_t * pF, uint32_t cycles)\r
 397 {\r
 398  int i;SPUOSSFreeze_t * pFO;\r
 399 \r
 400  pFO=(SPUOSSFreeze_t *)(pF+1);\r
 401 \r
 402  spu.pSpuIrq = spu.spuMemC + ((spu.regArea[(H_SPUirqAddr - 0x0c00) / 2] << 3) & ~0xf);\r
 403 \r
 404  if(pFO->spuAddr)\r
 405   {\r
 406    if (pFO->spuAddr == 0xbaadf00d) spu.spuAddr = 0;\r
 407    else spu.spuAddr = pFO->spuAddr & 0x7fffe;\r
 408   }\r
 409  spu.decode_pos = pFO->decode_pos & 0x1ff;\r
 410  spu.rvb->CurrAddr = pFO->rvb_cur;\r
 411  spu.cycles_played = pFO->cycles_played ? pFO->cycles_played : cycles;\r
 412 \r
 413  spu.dwNewChannel=0;\r
 414  spu.dwChannelsAudible=0;\r
 415  spu.dwChannelDead=0;\r
 416  for(i=0;i<MAXCHAN;i++)\r
 417   {\r
 418    load_channel(&spu.s_chan[i],&pFO->s_chan[i],i);\r
 419 \r
 420    spu.s_chan[i].pCurr+=(uintptr_t)spu.spuMemC;\r
 421    spu.s_chan[i].pLoop+=(uintptr_t)spu.spuMemC;\r
 422   }\r
 423 \r
 424  return pFO;\r
 425 }\r
 426 \r
 427 ////////////////////////////////////////////////////////////////////////\r
 428 \r
 429 static void LoadStateUnknown(SPUFreeze_t * pF, uint32_t cycles)\r
 430 {\r
 431  int i;\r
 432 \r
 433  for(i=0;i<MAXCHAN;i++)\r
 434   {\r
 435    spu.s_chan[i].pLoop=spu.spuMemC;\r
 436   }\r
 437 \r
 438  spu.dwNewChannel=0;\r
 439  spu.dwChannelsAudible=0;\r
 440  spu.dwChannelDead=0;\r
 441  spu.pSpuIrq=spu.spuMemC;\r
 442  spu.cycles_played = cycles;\r
 443 \r
 444  for(i=0;i<0xc0;i++)\r
 445   {\r
 446    load_register(0x1f801c00 + i*2, cycles);\r
 447   }\r
 448 }\r
 449 \r
 450 ////////////////////////////////////////////////////////////////////////\r
 451 // vim:shiftwidth=1:expandtab\r