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            State;\r
  33  int            AttackModeExp;\r
  34  int            AttackRate;\r
  35  int            DecayRate;\r
  36  int            SustainLevel;\r
  37  int            SustainModeExp;\r
  38  int            SustainIncrease;\r
  39  int            SustainRate;\r
  40  int            ReleaseModeExp;\r
  41  int            ReleaseRate;\r
  42  int            EnvelopeVol;\r
  43  long           lVolume;\r
  44  long           lDummy1;\r
  45  long           lDummy2;\r
  46 } ADSRInfoEx_orig;\r
  47 \r
  48 typedef struct\r
  49 {\r
  50  // no mutexes used anymore... don't need them to sync access\r
  51  //HANDLE            hMutex;\r
  52 \r
  53  int               bNew;                               // start flag\r
  54 \r
  55  int               iSBPos;                             // mixing stuff\r
  56  int               spos;\r
  57  int               sinc;\r
  58  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
  59  int               sval;\r
  60 \r
  61  unsigned char *   pStart;                             // start ptr into sound mem\r
  62  unsigned char *   pCurr;                              // current pos in sound mem\r
  63  unsigned char *   pLoop;                              // loop ptr in sound mem\r
  64 \r
  65  int               bOn;                                // is channel active (sample playing?)\r
  66  int               bStop;                              // is channel stopped (sample _can_ still be playing, ADSR Release phase)\r
  67  int               bReverb;                            // can we do reverb on this channel? must have ctrl register bit, to get active\r
  68  int               iActFreq;                           // current psx pitch\r
  69  int               iUsedFreq;                          // current pc pitch\r
  70  int               iLeftVolume;                        // left volume\r
  71  int               iLeftVolRaw;                        // left psx volume value\r
  72  int               bIgnoreLoop;                        // ignore loop bit, if an external loop address is used\r
  73  int               iMute;                              // mute mode\r
  74  int               iRightVolume;                       // right volume\r
  75  int               iRightVolRaw;                       // right psx volume value\r
  76  int               iRawPitch;                          // raw pitch (0...3fff)\r
  77  int               iIrqDone;                           // debug irq done flag\r
  78  int               s_1;                                // last decoding infos\r
  79  int               s_2;\r
  80  int               bRVBActive;                         // reverb active flag\r
  81  int               iRVBOffset;                         // reverb offset\r
  82  int               iRVBRepeat;                         // reverb repeat\r
  83  int               bNoise;                             // noise active flag\r
  84  int               bFMod;                              // freq mod (0=off, 1=sound channel, 2=freq channel)\r
  85  int               iRVBNum;                            // another reverb helper\r
  86  int               iOldNoise;                          // old noise val for this channel   \r
  87  ADSRInfo          ADSR;                               // active ADSR settings\r
  88  ADSRInfoEx_orig   ADSRX;                              // next ADSR settings (will be moved to active on sample start)\r
  89 } SPUCHAN_orig;\r
  90 \r
  91 typedef struct\r
  92 {\r
  93  char          szSPUName[8];\r
  94  uint32_t ulFreezeVersion;\r
  95  uint32_t ulFreezeSize;\r
  96  unsigned char cSPUPort[0x200];\r
  97  unsigned char cSPURam[0x80000];\r
  98  xa_decode_t   xaS;     \r
  99 } SPUFreeze_t;\r
 100 \r
 101 typedef struct\r
 102 {\r
 103  unsigned short  spuIrq;\r
 104  uint32_t   pSpuIrq;\r
 105  uint32_t   spuAddr;\r
 106  uint32_t   dummy1;\r
 107  uint32_t   dummy2;\r
 108  uint32_t   dummy3;\r
 109 \r
 110  SPUCHAN_orig s_chan[MAXCHAN];   \r
 111 \r
 112 } SPUOSSFreeze_t;\r
 113 \r
 114 ////////////////////////////////////////////////////////////////////////\r
 115 \r
 116 void LoadStateV5(SPUFreeze_t * pF);                    // newest version\r
 117 void LoadStateUnknown(SPUFreeze_t * pF);               // unknown format\r
 118 \r
 119 extern int lastch;\r
 120 \r
 121 // we want to retain compatibility between versions,\r
 122 // so use original channel struct\r
 123 static void save_channel(SPUCHAN_orig *d, const SPUCHAN *s, int ch)\r
 124 {\r
 125  memset(d, 0, sizeof(*d));\r
 126  d->bNew = !!(dwNewChannel & (1<<ch));\r
 127  d->iSBPos = s->iSBPos;\r
 128  d->spos = s->spos;\r
 129  d->sinc = s->sinc;\r
 130  memcpy(d->SB, s->SB, sizeof(d->SB));\r
 131  d->pStart = (unsigned char *)((regAreaGet(ch,6)&~1)<<3);\r
 132  d->pCurr = s->pCurr;\r
 133  d->pLoop = s->pLoop;\r
 134  d->bOn = !!(dwChannelOn & (1<<ch));\r
 135  d->bStop = s->bStop;\r
 136  d->bReverb = s->bReverb;\r
 137  d->iActFreq = 1;\r
 138  d->iUsedFreq = 2;\r
 139  d->iLeftVolume = s->iLeftVolume;\r
 140  // this one is nasty but safe, save compat is important\r
 141  d->bIgnoreLoop = (s->prevflags ^ 2) << 1;\r
 142  d->iRightVolume = s->iRightVolume;\r
 143  d->iRawPitch = s->iRawPitch;\r
 144  d->s_1 = s->SB[27]; // yes it's reversed\r
 145  d->s_2 = s->SB[26];\r
 146  d->bRVBActive = s->bRVBActive;\r
 147  d->bNoise = s->bNoise;\r
 148  d->bFMod = s->bFMod;\r
 149  d->ADSRX.State = s->ADSRX.State;\r
 150  d->ADSRX.AttackModeExp = s->ADSRX.AttackModeExp;\r
 151  d->ADSRX.AttackRate = s->ADSRX.AttackRate;\r
 152  d->ADSRX.DecayRate = s->ADSRX.DecayRate;\r
 153  d->ADSRX.SustainLevel = s->ADSRX.SustainLevel;\r
 154  d->ADSRX.SustainModeExp = s->ADSRX.SustainModeExp;\r
 155  d->ADSRX.SustainIncrease = s->ADSRX.SustainIncrease;\r
 156  d->ADSRX.SustainRate = s->ADSRX.SustainRate;\r
 157  d->ADSRX.ReleaseModeExp = s->ADSRX.ReleaseModeExp;\r
 158  d->ADSRX.ReleaseRate = s->ADSRX.ReleaseRate;\r
 159  d->ADSRX.EnvelopeVol = s->ADSRX.EnvelopeVol;\r
 160  d->ADSRX.lVolume = d->bOn; // hmh\r
 161 }\r
 162 \r
 163 static void load_channel(SPUCHAN *d, const SPUCHAN_orig *s, int ch)\r
 164 {\r
 165  memset(d, 0, sizeof(*d));\r
 166  if (s->bNew) dwNewChannel |= 1<<ch;\r
 167  d->iSBPos = s->iSBPos;\r
 168  d->spos = s->spos;\r
 169  d->sinc = s->sinc;\r
 170  memcpy(d->SB, s->SB, sizeof(d->SB));\r
 171  d->pCurr = (void *)((long)s->pCurr & 0x7fff0);\r
 172  d->pLoop = (void *)((long)s->pLoop & 0x7fff0);\r
 173  if (s->bOn) dwChannelOn |= 1<<ch;\r
 174  d->bStop = s->bStop;\r
 175  d->bReverb = s->bReverb;\r
 176  d->iLeftVolume = s->iLeftVolume;\r
 177  d->iRightVolume = s->iRightVolume;\r
 178  d->iRawPitch = s->iRawPitch;\r
 179  d->bRVBActive = s->bRVBActive;\r
 180  d->bNoise = s->bNoise;\r
 181  d->bFMod = s->bFMod;\r
 182  d->prevflags = (s->bIgnoreLoop >> 1) ^ 2;\r
 183  d->ADSRX.State = s->ADSRX.State;\r
 184  d->ADSRX.AttackModeExp = s->ADSRX.AttackModeExp;\r
 185  d->ADSRX.AttackRate = s->ADSRX.AttackRate;\r
 186  d->ADSRX.DecayRate = s->ADSRX.DecayRate;\r
 187  d->ADSRX.SustainLevel = s->ADSRX.SustainLevel;\r
 188  d->ADSRX.SustainModeExp = s->ADSRX.SustainModeExp;\r
 189  d->ADSRX.SustainIncrease = s->ADSRX.SustainIncrease;\r
 190  d->ADSRX.SustainRate = s->ADSRX.SustainRate;\r
 191  d->ADSRX.ReleaseModeExp = s->ADSRX.ReleaseModeExp;\r
 192  d->ADSRX.ReleaseRate = s->ADSRX.ReleaseRate;\r
 193  d->ADSRX.EnvelopeVol = s->ADSRX.EnvelopeVol;\r
 194 }\r
 195 \r
 196 ////////////////////////////////////////////////////////////////////////\r
 197 // SPUFREEZE: called by main emu on savestate load/save\r
 198 ////////////////////////////////////////////////////////////////////////\r
 199 \r
 200 long CALLBACK SPUfreeze(uint32_t ulFreezeMode,SPUFreeze_t * pF)\r
 201 {\r
 202  int i;SPUOSSFreeze_t * pFO;\r
 203 \r
 204  if(!pF) return 0;                                     // first check\r
 205 \r
 206  if(ulFreezeMode)                                      // info or save?\r
 207   {//--------------------------------------------------//\r
 208    if(ulFreezeMode==1)                                 \r
 209     memset(pF,0,sizeof(SPUFreeze_t)+sizeof(SPUOSSFreeze_t));\r
 210 \r
 211    strcpy(pF->szSPUName,"PBOSS");\r
 212    pF->ulFreezeVersion=5;\r
 213    pF->ulFreezeSize=sizeof(SPUFreeze_t)+sizeof(SPUOSSFreeze_t);\r
 214 \r
 215    if(ulFreezeMode==2) return 1;                       // info mode? ok, bye\r
 216                                                        // save mode:\r
 217    memcpy(pF->cSPURam,spuMem,0x80000);                 // copy common infos\r
 218    memcpy(pF->cSPUPort,regArea,0x200);\r
 219 \r
 220    if(xapGlobal && XAPlay!=XAFeed)                     // some xa\r
 221     {\r
 222      pF->xaS=*xapGlobal;     \r
 223     }\r
 224    else \r
 225    memset(&pF->xaS,0,sizeof(xa_decode_t));             // or clean xa\r
 226 \r
 227    pFO=(SPUOSSFreeze_t *)(pF+1);                       // store special stuff\r
 228 \r
 229    pFO->spuIrq=spuIrq;\r
 230    if(pSpuIrq)  pFO->pSpuIrq  = (unsigned long)pSpuIrq-(unsigned long)spuMemC;\r
 231 \r
 232    pFO->spuAddr=spuAddr;\r
 233    if(pFO->spuAddr==0) pFO->spuAddr=0xbaadf00d;\r
 234 \r
 235    for(i=0;i<MAXCHAN;i++)\r
 236     {\r
 237      if(!(s_chan[i].prevflags&2))\r
 238       dwChannelOn&=~(1<<i);\r
 239 \r
 240      save_channel(&pFO->s_chan[i],&s_chan[i],i);\r
 241      if(pFO->s_chan[i].pCurr)\r
 242       pFO->s_chan[i].pCurr-=(unsigned long)spuMemC;\r
 243      if(pFO->s_chan[i].pLoop)\r
 244       pFO->s_chan[i].pLoop-=(unsigned long)spuMemC;\r
 245     }\r
 246 \r
 247    return 1;\r
 248    //--------------------------------------------------//\r
 249   }\r
 250                                                        \r
 251  if(ulFreezeMode!=0) return 0;                         // bad mode? bye\r
 252 \r
 253  memcpy(spuMem,pF->cSPURam,0x80000);                   // get ram\r
 254  memcpy(regArea,pF->cSPUPort,0x200);\r
 255 \r
 256  if(pF->xaS.nsamples<=4032)                            // start xa again\r
 257   SPUplayADPCMchannel(&pF->xaS);\r
 258 \r
 259  xapGlobal=0;\r
 260 \r
 261  if(!strcmp(pF->szSPUName,"PBOSS") && pF->ulFreezeVersion==5)\r
 262    LoadStateV5(pF);\r
 263  else LoadStateUnknown(pF);\r
 264 \r
 265  lastch = -1;\r
 266 \r
 267  // repair some globals\r
 268  for(i=0;i<=62;i+=2)\r
 269   SPUwriteRegister(H_Reverb+i,regArea[(H_Reverb+i-0xc00)>>1]);\r
 270  SPUwriteRegister(H_SPUReverbAddr,regArea[(H_SPUReverbAddr-0xc00)>>1]);\r
 271  SPUwriteRegister(H_SPUrvolL,regArea[(H_SPUrvolL-0xc00)>>1]);\r
 272  SPUwriteRegister(H_SPUrvolR,regArea[(H_SPUrvolR-0xc00)>>1]);\r
 273 \r
 274  SPUwriteRegister(H_SPUctrl,(unsigned short)(regArea[(H_SPUctrl-0xc00)>>1]|0x4000));\r
 275  SPUwriteRegister(H_SPUstat,regArea[(H_SPUstat-0xc00)>>1]);\r
 276  SPUwriteRegister(H_CDLeft,regArea[(H_CDLeft-0xc00)>>1]);\r
 277  SPUwriteRegister(H_CDRight,regArea[(H_CDRight-0xc00)>>1]);\r
 278 \r
 279  // fix to prevent new interpolations from crashing\r
 280  for(i=0;i<MAXCHAN;i++) s_chan[i].SB[28]=0;\r
 281 \r
 282  ClearWorkingState();\r
 283 \r
 284  return 1;\r
 285 }\r
 286 \r
 287 ////////////////////////////////////////////////////////////////////////\r
 288 \r
 289 void LoadStateV5(SPUFreeze_t * pF)\r
 290 {\r
 291  int i;SPUOSSFreeze_t * pFO;\r
 292 \r
 293  pFO=(SPUOSSFreeze_t *)(pF+1);\r
 294 \r
 295  spuIrq = pFO->spuIrq;\r
 296  if(pFO->pSpuIrq) pSpuIrq = spuMemC+((long)pFO->pSpuIrq&0x7fff0); else pSpuIrq=NULL;\r
 297 \r
 298  if(pFO->spuAddr)\r
 299   {\r
 300    spuAddr = pFO->spuAddr;\r
 301    if (spuAddr == 0xbaadf00d) spuAddr = 0;\r
 302   }\r
 303 \r
 304  dwNewChannel=0;\r
 305  dwChannelOn=0;\r
 306  dwChannelDead=0;\r
 307  for(i=0;i<MAXCHAN;i++)\r
 308   {\r
 309    load_channel(&s_chan[i],&pFO->s_chan[i],i);\r
 310 \r
 311    s_chan[i].pCurr+=(unsigned long)spuMemC;\r
 312    s_chan[i].pLoop+=(unsigned long)spuMemC;\r
 313   }\r
 314 }\r
 315 \r
 316 ////////////////////////////////////////////////////////////////////////\r
 317 \r
 318 void LoadStateUnknown(SPUFreeze_t * pF)\r
 319 {\r
 320  int i;\r
 321 \r
 322  for(i=0;i<MAXCHAN;i++)\r
 323   {\r
 324    s_chan[i].bStop=0;\r
 325    s_chan[i].pLoop=spuMemC;\r
 326   }\r
 327 \r
 328  dwNewChannel=0;\r
 329  dwChannelOn=0;\r
 330  dwChannelDead=0;\r
 331  pSpuIrq=0;\r
 332 \r
 333  for(i=0;i<0xc0;i++)\r
 334   {\r
 335    SPUwriteRegister(0x1f801c00+i*2,regArea[i]);\r
 336   }\r
 337 }\r
 338 \r
 339 ////////////////////////////////////////////////////////////////////////\r