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   dummy1;\r
 126  uint32_t   dummy2;\r
 127  uint32_t   dummy3;\r
 128 \r
 129  SPUCHAN_orig s_chan[MAXCHAN];   \r
 130 \r
 131 } SPUOSSFreeze_t;\r
 132 \r
 133 ////////////////////////////////////////////////////////////////////////\r
 134 \r
 135 void LoadStateV5(SPUFreeze_t * pF);                    // newest version\r
 136 void LoadStateUnknown(SPUFreeze_t * pF, uint32_t cycles); // unknown format\r
 137 \r
 138 // we want to retain compatibility between versions,\r
 139 // so use original channel struct\r
 140 static void save_channel(SPUCHAN_orig *d, const SPUCHAN *s, int ch)\r
 141 {\r
 142  memset(d, 0, sizeof(*d));\r
 143  d->bNew = !!(spu.dwNewChannel & (1<<ch));\r
 144  d->iSBPos = s->iSBPos;\r
 145  d->spos = s->spos;\r
 146  d->sinc = s->sinc;\r
 147  memcpy(d->SB, spu.SB + ch * SB_SIZE, sizeof(d->SB[0]) * SB_SIZE);\r
 148  d->iStart = (regAreaGet(ch,6)&~1)<<3;\r
 149  d->iCurr = 0; // set by the caller\r
 150  d->iLoop = 0; // set by the caller\r
 151  d->bOn = !!(spu.dwChannelOn & (1<<ch));\r
 152  d->bStop = s->ADSRX.State == ADSR_RELEASE;\r
 153  d->bReverb = s->bReverb;\r
 154  d->iActFreq = 1;\r
 155  d->iUsedFreq = 2;\r
 156  d->iLeftVolume = s->iLeftVolume;\r
 157  // this one is nasty but safe, save compat is important\r
 158  d->bIgnoreLoop = (s->prevflags ^ 2) << 1;\r
 159  d->iRightVolume = s->iRightVolume;\r
 160  d->iRawPitch = s->iRawPitch;\r
 161  d->s_1 = spu.SB[ch * SB_SIZE + 27]; // yes it's reversed\r
 162  d->s_2 = spu.SB[ch * SB_SIZE + 26];\r
 163  d->bRVBActive = s->bRVBActive;\r
 164  d->bNoise = s->bNoise;\r
 165  d->bFMod = s->bFMod;\r
 166  d->ADSRX.State = s->ADSRX.State;\r
 167  d->ADSRX.AttackModeExp = s->ADSRX.AttackModeExp;\r
 168  d->ADSRX.AttackRate = s->ADSRX.AttackRate;\r
 169  d->ADSRX.DecayRate = s->ADSRX.DecayRate;\r
 170  d->ADSRX.SustainLevel = s->ADSRX.SustainLevel;\r
 171  d->ADSRX.SustainModeExp = s->ADSRX.SustainModeExp;\r
 172  d->ADSRX.SustainIncrease = s->ADSRX.SustainIncrease;\r
 173  d->ADSRX.SustainRate = s->ADSRX.SustainRate;\r
 174  d->ADSRX.ReleaseModeExp = s->ADSRX.ReleaseModeExp;\r
 175  d->ADSRX.ReleaseRate = s->ADSRX.ReleaseRate;\r
 176  d->ADSRX.EnvelopeVol = s->ADSRX.EnvelopeVol;\r
 177  d->ADSRX.lVolume = d->bOn; // hmh\r
 178 }\r
 179 \r
 180 static void load_channel(SPUCHAN *d, const SPUCHAN_orig *s, int ch)\r
 181 {\r
 182  memset(d, 0, sizeof(*d));\r
 183  if (s->bNew) spu.dwNewChannel |= 1<<ch;\r
 184  d->iSBPos = s->iSBPos;\r
 185  if ((uint32_t)d->iSBPos >= 28) d->iSBPos = 27;\r
 186  d->spos = s->spos;\r
 187  d->sinc = s->sinc;\r
 188  d->sinc_inv = 0;\r
 189  memcpy(spu.SB + ch * SB_SIZE, s->SB, sizeof(spu.SB[0]) * SB_SIZE);\r
 190  d->pCurr = (void *)((long)s->iCurr & 0x7fff0);\r
 191  d->pLoop = (void *)((long)s->iLoop & 0x7fff0);\r
 192  d->bReverb = s->bReverb;\r
 193  d->iLeftVolume = s->iLeftVolume;\r
 194  d->iRightVolume = s->iRightVolume;\r
 195  d->iRawPitch = s->iRawPitch;\r
 196  d->bRVBActive = s->bRVBActive;\r
 197  d->bNoise = s->bNoise;\r
 198  d->bFMod = s->bFMod;\r
 199  d->prevflags = (s->bIgnoreLoop >> 1) ^ 2;\r
 200  d->ADSRX.State = s->ADSRX.State;\r
 201  if (s->bStop) d->ADSRX.State = ADSR_RELEASE;\r
 202  d->ADSRX.AttackModeExp = s->ADSRX.AttackModeExp;\r
 203  d->ADSRX.AttackRate = s->ADSRX.AttackRate;\r
 204  d->ADSRX.DecayRate = s->ADSRX.DecayRate;\r
 205  d->ADSRX.SustainLevel = s->ADSRX.SustainLevel;\r
 206  d->ADSRX.SustainModeExp = s->ADSRX.SustainModeExp;\r
 207  d->ADSRX.SustainIncrease = s->ADSRX.SustainIncrease;\r
 208  d->ADSRX.SustainRate = s->ADSRX.SustainRate;\r
 209  d->ADSRX.ReleaseModeExp = s->ADSRX.ReleaseModeExp;\r
 210  d->ADSRX.ReleaseRate = s->ADSRX.ReleaseRate;\r
 211  d->ADSRX.EnvelopeVol = s->ADSRX.EnvelopeVol;\r
 212  if (s->bOn) spu.dwChannelOn |= 1<<ch;\r
 213  else d->ADSRX.EnvelopeVol = 0;\r
 214 }\r
 215 \r
 216 // force load from regArea to variables\r
 217 static void load_register(unsigned long reg, unsigned int cycles)\r
 218 {\r
 219  unsigned short *r = &spu.regArea[((reg & 0xfff) - 0xc00) >> 1];\r
 220  *r ^= 1;\r
 221  SPUwriteRegister(reg, *r ^ 1, cycles);\r
 222 }\r
 223 \r
 224 ////////////////////////////////////////////////////////////////////////\r
 225 // SPUFREEZE: called by main emu on savestate load/save\r
 226 ////////////////////////////////////////////////////////////////////////\r
 227 \r
 228 long CALLBACK SPUfreeze(uint32_t ulFreezeMode, SPUFreeze_t * pF,\r
 229  uint32_t cycles)\r
 230 {\r
 231  int i;SPUOSSFreeze_t * pFO;\r
 232 \r
 233  if(!pF) return 0;                                     // first check\r
 234 \r
 235  do_samples(cycles, 1);\r
 236 \r
 237  if(ulFreezeMode)                                      // info or save?\r
 238   {//--------------------------------------------------//\r
 239    if(ulFreezeMode==1)                                 \r
 240     memset(pF,0,sizeof(SPUFreeze_t)+sizeof(SPUOSSFreeze_t));\r
 241 \r
 242    strcpy(pF->szSPUName,"PBOSS");\r
 243    pF->ulFreezeVersion=5;\r
 244    pF->ulFreezeSize=sizeof(SPUFreeze_t)+sizeof(SPUOSSFreeze_t);\r
 245 \r
 246    if(ulFreezeMode==2) return 1;                       // info mode? ok, bye\r
 247                                                        // save mode:\r
 248    memcpy(pF->cSPURam,spu.spuMem,0x80000);             // copy common infos\r
 249    memcpy(pF->cSPUPort,spu.regArea,0x200);\r
 250 \r
 251    if(spu.xapGlobal && spu.XAPlay!=spu.XAFeed)         // some xa\r
 252     {\r
 253      pF->xaS=*spu.xapGlobal;\r
 254     }\r
 255    else \r
 256    memset(&pF->xaS,0,sizeof(xa_decode_t));             // or clean xa\r
 257 \r
 258    pFO=(SPUOSSFreeze_t *)(pF+1);                       // store special stuff\r
 259 \r
 260    pFO->spuIrq = spu.regArea[(H_SPUirqAddr - 0x0c00) / 2];\r
 261    if(spu.pSpuIrq) pFO->pSpuIrq  = (unsigned long)spu.pSpuIrq-(unsigned long)spu.spuMemC;\r
 262 \r
 263    pFO->spuAddr=spu.spuAddr;\r
 264    if(pFO->spuAddr==0) pFO->spuAddr=0xbaadf00d;\r
 265    pFO->decode_pos = spu.decode_pos;\r
 266 \r
 267    for(i=0;i<MAXCHAN;i++)\r
 268     {\r
 269      save_channel(&pFO->s_chan[i],&spu.s_chan[i],i);\r
 270      if(spu.s_chan[i].pCurr)\r
 271       pFO->s_chan[i].iCurr=spu.s_chan[i].pCurr-spu.spuMemC;\r
 272      if(spu.s_chan[i].pLoop)\r
 273       pFO->s_chan[i].iLoop=spu.s_chan[i].pLoop-spu.spuMemC;\r
 274     }\r
 275 \r
 276    return 1;\r
 277    //--------------------------------------------------//\r
 278   }\r
 279                                                        \r
 280  if(ulFreezeMode!=0) return 0;                         // bad mode? bye\r
 281 \r
 282  memcpy(spu.spuMem,pF->cSPURam,0x80000);               // get ram\r
 283  memcpy(spu.regArea,pF->cSPUPort,0x200);\r
 284  spu.bMemDirty = 1;\r
 285 \r
 286  if(pF->xaS.nsamples<=4032)                            // start xa again\r
 287   SPUplayADPCMchannel(&pF->xaS);\r
 288 \r
 289  spu.xapGlobal=0;\r
 290 \r
 291  if(!strcmp(pF->szSPUName,"PBOSS") && pF->ulFreezeVersion==5)\r
 292    LoadStateV5(pF);\r
 293  else LoadStateUnknown(pF, cycles);\r
 294 \r
 295  // repair some globals\r
 296  for(i=0;i<=62;i+=2)\r
 297   load_register(H_Reverb+i, cycles);\r
 298  load_register(H_SPUReverbAddr, cycles);\r
 299  load_register(H_SPUrvolL, cycles);\r
 300  load_register(H_SPUrvolR, cycles);\r
 301 \r
 302  load_register(H_SPUctrl, cycles);\r
 303  load_register(H_SPUstat, cycles);\r
 304  load_register(H_CDLeft, cycles);\r
 305  load_register(H_CDRight, cycles);\r
 306 \r
 307  // fix to prevent new interpolations from crashing\r
 308  for(i=0;i<MAXCHAN;i++) spu.SB[i * SB_SIZE + 28]=0;\r
 309 \r
 310  ClearWorkingState();\r
 311  spu.cycles_played = cycles;\r
 312 \r
 313  if (spu.spuCtrl & CTRL_IRQ)\r
 314   schedule_next_irq();\r
 315 \r
 316  return 1;\r
 317 }\r
 318 \r
 319 ////////////////////////////////////////////////////////////////////////\r
 320 \r
 321 void LoadStateV5(SPUFreeze_t * pF)\r
 322 {\r
 323  int i;SPUOSSFreeze_t * pFO;\r
 324 \r
 325  pFO=(SPUOSSFreeze_t *)(pF+1);\r
 326 \r
 327  spu.pSpuIrq = spu.spuMemC + ((spu.regArea[(H_SPUirqAddr - 0x0c00) / 2] << 3) & ~0xf);\r
 328 \r
 329  if(pFO->spuAddr)\r
 330   {\r
 331    if (pFO->spuAddr == 0xbaadf00d) spu.spuAddr = 0;\r
 332    else spu.spuAddr = pFO->spuAddr & 0x7fffe;\r
 333   }\r
 334  spu.decode_pos = pFO->decode_pos & 0x1ff;\r
 335 \r
 336  spu.dwNewChannel=0;\r
 337  spu.dwChannelOn=0;\r
 338  spu.dwChannelDead=0;\r
 339  for(i=0;i<MAXCHAN;i++)\r
 340   {\r
 341    load_channel(&spu.s_chan[i],&pFO->s_chan[i],i);\r
 342 \r
 343    spu.s_chan[i].pCurr+=(unsigned long)spu.spuMemC;\r
 344    spu.s_chan[i].pLoop+=(unsigned long)spu.spuMemC;\r
 345   }\r
 346 }\r
 347 \r
 348 ////////////////////////////////////////////////////////////////////////\r
 349 \r
 350 void LoadStateUnknown(SPUFreeze_t * pF, uint32_t cycles)\r
 351 {\r
 352  int i;\r
 353 \r
 354  for(i=0;i<MAXCHAN;i++)\r
 355   {\r
 356    spu.s_chan[i].pLoop=spu.spuMemC;\r
 357   }\r
 358 \r
 359  spu.dwNewChannel=0;\r
 360  spu.dwChannelOn=0;\r
 361  spu.dwChannelDead=0;\r
 362  spu.pSpuIrq=spu.spuMemC;\r
 363 \r
 364  for(i=0;i<0xc0;i++)\r
 365   {\r
 366    load_register(0x1f801c00 + i*2, cycles);\r
 367   }\r
 368 }\r
 369 \r
 370 ////////////////////////////////////////////////////////////////////////\r