standalone: allow scaler to cut off the letterbox

[pcsx_rearmed.git] / plugins / dfsound / freeze.c

/***************************************************************************\r
                          freeze.c  -  description\r
                             -------------------\r
    begin                : Wed May 15 2002\r
    copyright            : (C) 2002 by Pete Bernert\r
    email                : BlackDove@addcom.de\r
 ***************************************************************************/\r
/***************************************************************************\r
 *                                                                         *\r
 *   This program is free software; you can redistribute it and/or modify  *\r
 *   it under the terms of the GNU General Public License as published by  *\r
 *   the Free Software Foundation; either version 2 of the License, or     *\r
 *   (at your option) any later version. See also the license.txt file for *\r
 *   additional informations.                                              *\r
 *                                                                         *\r
 ***************************************************************************/\r
\r
#include <assert.h>\r
#include "stdafx.h"\r
\r
#define _IN_FREEZE\r
\r
#include "externals.h"\r
#include "registers.h"\r
#include "spu.h"\r
\r
////////////////////////////////////////////////////////////////////////\r
// freeze structs\r
////////////////////////////////////////////////////////////////////////\r
\r
typedef struct\r
{\r
 int            AttackModeExp;\r
 int            AttackTime;\r
 int            DecayTime;\r
 int            SustainLevel;\r
 int            SustainModeExp;\r
 int            SustainModeDec;\r
 int            SustainTime;\r
 int            ReleaseModeExp;\r
 unsigned int   ReleaseVal;\r
 int            ReleaseTime;\r
 int            ReleaseStartTime; \r
 int            ReleaseVol; \r
 int            lTime;\r
 int            lVolume;\r
} ADSRInfo;\r
\r
typedef struct\r
{\r
 int            State;\r
 int            AttackModeExp;\r
 int            AttackRate;\r
 int            DecayRate;\r
 int            SustainLevel;\r
 int            SustainModeExp;\r
 int            SustainIncrease;\r
 int            SustainRate;\r
 int            ReleaseModeExp;\r
 int            ReleaseRate;\r
 int            EnvelopeVol;\r
 int            lVolume;\r
 int            lDummy1;\r
 int            lDummy2;\r
} ADSRInfoEx_orig;\r
\r
typedef struct\r
{\r
 // no mutexes used anymore... don't need them to sync access\r
 //HANDLE            hMutex;\r
\r
 int               bNew;                               // start flag\r
\r
 int               iSBPos;                             // mixing stuff\r
 int               spos;\r
 int               sinc;\r
 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
 int               sval;\r
\r
 int               iStart;                             // start ptr into sound mem\r
 int               iCurr;                              // current pos in sound mem\r
 int               iLoop;                              // loop ptr in sound mem\r
\r
 int               bOn;                                // is channel active (sample playing?)\r
 int               bStop;                              // is channel stopped (sample _can_ still be playing, ADSR Release phase)\r
 int               bReverb;                            // can we do reverb on this channel? must have ctrl register bit, to get active\r
 int               iActFreq;                           // current psx pitch\r
 int               iUsedFreq;                          // current pc pitch\r
 int               iLeftVolume;                        // left volume\r
 int               iLeftVolRaw;                        // left psx volume value\r
 int               bIgnoreLoop;                        // ignore loop bit, if an external loop address is used\r
 int               iMute;                              // mute mode\r
 int               iRightVolume;                       // right volume\r
 int               iRightVolRaw;                       // right psx volume value\r
 int               iRawPitch;                          // raw pitch (0...3fff)\r
 int               iIrqDone;                           // debug irq done flag\r
 int               s_1;                                // last decoding infos\r
 int               s_2;\r
 int               bRVBActive;                         // reverb active flag\r
 int               iRVBOffset;                         // reverb offset\r
 int               iRVBRepeat;                         // reverb repeat\r
 int               bNoise;                             // noise active flag\r
 int               bFMod;                              // freq mod (0=off, 1=sound channel, 2=freq channel)\r
 int               iRVBNum;                            // another reverb helper\r
 int               iOldNoise;                          // old noise val for this channel   \r
 ADSRInfo          ADSR;                               // active ADSR settings\r
 ADSRInfoEx_orig   ADSRX;                              // next ADSR settings (will be moved to active on sample start)\r
} SPUCHAN_orig;\r
\r
typedef struct SPUFreeze\r
{\r
 char          szSPUName[8];\r
 uint32_t ulFreezeVersion;\r
 uint32_t ulFreezeSize;\r
 unsigned char cSPUPort[0x200];\r
 unsigned char cSPURam[0x80000];\r
 xa_decode_t   xaS;     \r
} SPUFreeze_t;\r
\r
typedef struct\r
{\r
 unsigned short  spuIrq;\r
 unsigned short  decode_pos;\r
 uint32_t   pSpuIrq;\r
 uint32_t   spuAddr;\r
 uint32_t   rvb_cur;\r
 uint16_t   xa_left;\r
 uint16_t   cdda_left;\r
 uint32_t   cycles_played;\r
\r
 SPUCHAN_orig s_chan[MAXCHAN];   \r
\r
 uint32_t   cycles_dma_end;\r
 uint32_t   decode_dirty_ch;\r
 uint32_t   dwNoiseVal;\r
 uint32_t   dwNoiseCount;\r
 uint32_t   XARepeat;\r
 uint32_t   XALastVal;\r
 uint32_t   last_keyon_cycles;\r
\r
} SPUOSSFreeze_t;\r
\r
////////////////////////////////////////////////////////////////////////\r
\r
static SPUOSSFreeze_t * LoadStateV5(SPUFreeze_t * pF, uint32_t cycles);\r
static void LoadStateUnknown(SPUFreeze_t * pF, uint32_t cycles); // unknown format\r
\r
// we want to retain compatibility between versions,\r
// so use original channel struct\r
static void save_channel(SPUCHAN_orig *d, const SPUCHAN *s, int ch)\r
{\r
 memset(d, 0, sizeof(*d));\r
 d->bNew = !!(spu.dwNewChannel & (1<<ch));\r
 d->iSBPos = s->iSBPos;\r
 d->spos = s->spos;\r
 d->sinc = s->sinc;\r
 assert(sizeof(d->SB) >= sizeof(spu.sb[ch]));\r
 memcpy(d->SB, &spu.sb[ch], sizeof(spu.sb[ch]));\r
 d->iStart = (regAreaGetCh(ch, 6) & ~1) << 3;\r
 d->iCurr = 0; // set by the caller\r
 d->iLoop = 0; // set by the caller\r
 d->bOn = !!(spu.dwChannelsAudible & (1<<ch));\r
 d->bStop = s->ADSRX.State == ADSR_RELEASE;\r
 d->bReverb = s->bReverb;\r
 d->iActFreq = 1;\r
 d->iUsedFreq = 2;\r
 d->iLeftVolume = s->iLeftVolume;\r
 // this one is nasty but safe, save compat is important\r
 d->bIgnoreLoop = (s->prevflags ^ 2) << 1;\r
 d->iRightVolume = s->iRightVolume;\r
 d->iRawPitch = s->iRawPitch;\r
 d->s_1 = spu.sb[ch].SB[27]; // yes it's reversed\r
 d->s_2 = spu.sb[ch].SB[26];\r
 d->bRVBActive = s->bRVBActive;\r
 d->bNoise = s->bNoise;\r
 d->bFMod = s->bFMod;\r
 d->ADSRX.State = s->ADSRX.State;\r
 d->ADSRX.AttackModeExp = s->ADSRX.AttackModeExp;\r
 d->ADSRX.AttackRate = s->ADSRX.AttackRate;\r
 d->ADSRX.DecayRate = s->ADSRX.DecayRate;\r
 d->ADSRX.SustainLevel = s->ADSRX.SustainLevel;\r
 d->ADSRX.SustainModeExp = s->ADSRX.SustainModeExp;\r
 d->ADSRX.SustainIncrease = s->ADSRX.SustainIncrease;\r
 d->ADSRX.SustainRate = s->ADSRX.SustainRate;\r
 d->ADSRX.ReleaseModeExp = s->ADSRX.ReleaseModeExp;\r
 d->ADSRX.ReleaseRate = s->ADSRX.ReleaseRate;\r
 d->ADSRX.EnvelopeVol = s->ADSRX.EnvelopeVol;\r
 d->ADSRX.lVolume = d->bOn; // hmh\r
}\r
\r
static void load_channel(SPUCHAN *d, const SPUCHAN_orig *s, int ch)\r
{\r
 memset(d, 0, sizeof(*d));\r
 if (s->bNew) spu.dwNewChannel |= 1<<ch;\r
 d->iSBPos = s->iSBPos;\r
 if ((uint32_t)d->iSBPos >= 28) d->iSBPos = 27;\r
 d->spos = s->spos;\r
 d->sinc = s->sinc;\r
 d->sinc_inv = 0;\r
 memcpy(&spu.sb[ch], s->SB, sizeof(spu.sb[ch]));\r
 d->pCurr = (void *)((uintptr_t)s->iCurr & 0x7fff0);\r
 d->pLoop = (void *)((uintptr_t)s->iLoop & 0x7fff0);\r
 d->bReverb = s->bReverb;\r
 d->iLeftVolume = s->iLeftVolume;\r
 d->iRightVolume = s->iRightVolume;\r
 d->iRawPitch = s->iRawPitch;\r
 d->bRVBActive = s->bRVBActive;\r
 d->bNoise = s->bNoise;\r
 d->bFMod = s->bFMod;\r
 d->prevflags = (s->bIgnoreLoop >> 1) ^ 2;\r
 d->ADSRX.State = s->ADSRX.State;\r
 if (s->bStop) d->ADSRX.State = ADSR_RELEASE;\r
 d->ADSRX.AttackModeExp = s->ADSRX.AttackModeExp;\r
 d->ADSRX.AttackRate = s->ADSRX.AttackRate;\r
 d->ADSRX.DecayRate = s->ADSRX.DecayRate;\r
 d->ADSRX.SustainLevel = s->ADSRX.SustainLevel;\r
 d->ADSRX.SustainModeExp = s->ADSRX.SustainModeExp;\r
 d->ADSRX.SustainIncrease = s->ADSRX.SustainIncrease;\r
 d->ADSRX.SustainRate = s->ADSRX.SustainRate;\r
 d->ADSRX.ReleaseModeExp = s->ADSRX.ReleaseModeExp;\r
 d->ADSRX.ReleaseRate = s->ADSRX.ReleaseRate;\r
 d->ADSRX.EnvelopeVol = s->ADSRX.EnvelopeVol;\r
 if (s->bOn) spu.dwChannelsAudible |= 1<<ch;\r
 else d->ADSRX.EnvelopeVol = 0;\r
}\r
\r
// force load from regArea to variables\r
static void load_register(unsigned long reg, unsigned int cycles)\r
{\r
 unsigned short *r = &spu.regArea[((reg & 0xfff) - 0xc00) >> 1];\r
 *r ^= 1;\r
 SPUwriteRegister(reg, *r ^ 1, cycles);\r
}\r
\r
////////////////////////////////////////////////////////////////////////\r
// SPUFREEZE: called by main emu on savestate load/save\r
////////////////////////////////////////////////////////////////////////\r
\r
long CALLBACK SPUfreeze(unsigned int ulFreezeMode, SPUFreeze_t * pF,\r
 unsigned int cycles)\r
{\r
 SPUOSSFreeze_t * pFO = NULL;\r
 int i;\r
\r
 if(!pF) return 0;                                     // first check\r
\r
 if(ulFreezeMode)                                      // info or save?\r
  {//--------------------------------------------------//\r
   int xa_left = 0, cdda_left = 0;\r
   do_samples(cycles, 1);\r
\r
   if(ulFreezeMode==1)                                 \r
    memset(pF,0,sizeof(SPUFreeze_t)+sizeof(SPUOSSFreeze_t));\r
\r
   strcpy(pF->szSPUName,"PBOSS");\r
   pF->ulFreezeVersion=5;\r
   pF->ulFreezeSize=sizeof(SPUFreeze_t)+sizeof(SPUOSSFreeze_t);\r
\r
   if(ulFreezeMode==2) return 1;                       // info mode? ok, bye\r
                                                       // save mode:\r
   regAreaGet(H_SPUctrl) = spu.spuCtrl;\r
   regAreaGet(H_SPUstat) = spu.spuStat;\r
   memcpy(pF->cSPURam,spu.spuMem,0x80000);             // copy common infos\r
   memcpy(pF->cSPUPort,spu.regArea,0x200);\r
\r
   if(spu.xapGlobal && spu.XAPlay!=spu.XAFeed)         // some xa\r
    {\r
     xa_left = spu.XAFeed - spu.XAPlay;\r
     if (xa_left < 0)\r
      xa_left = spu.XAEnd - spu.XAPlay + spu.XAFeed - spu.XAStart;\r
     pF->xaS = *spu.xapGlobal;\r
    }\r
   else if (spu.CDDAPlay != spu.CDDAFeed)\r
    {\r
     // abuse the xa struct to store leftover cdda samples\r
     unsigned int *p = spu.CDDAPlay;\r
     cdda_left = spu.CDDAFeed - spu.CDDAPlay;\r
     if (cdda_left < 0)\r
      cdda_left = spu.CDDAEnd - spu.CDDAPlay + spu.CDDAFeed - spu.CDDAStart;\r
     if (cdda_left > sizeof(pF->xaS.pcm) / 4)\r
      cdda_left = sizeof(pF->xaS.pcm) / 4;\r
     if (p + cdda_left <= spu.CDDAEnd)\r
      memcpy(pF->xaS.pcm, p, cdda_left * 4);\r
     else {\r
      memcpy(pF->xaS.pcm, p, (spu.CDDAEnd - p) * 4);\r
      memcpy((char *)pF->xaS.pcm + (spu.CDDAEnd - p) * 4, spu.CDDAStart,\r
             (cdda_left - (spu.CDDAEnd - p)) * 4);\r
     }\r
     pF->xaS.nsamples = 0;\r
    }\r
   else\r
    memset(&pF->xaS,0,sizeof(xa_decode_t));            // or clean xa\r
\r
   pFO=(SPUOSSFreeze_t *)(pF+1);                       // store special stuff\r
\r
   pFO->spuIrq = spu.regArea[(H_SPUirqAddr - 0x0c00) / 2];\r
   if(spu.pSpuIrq) pFO->pSpuIrq = spu.pSpuIrq - spu.spuMemC;\r
\r
   pFO->spuAddr=spu.spuAddr;\r
   if(pFO->spuAddr==0) pFO->spuAddr=0xbaadf00d;\r
   pFO->decode_pos = spu.decode_pos;\r
   pFO->rvb_cur = spu.rvb->CurrAddr;\r
   pFO->xa_left = xa_left;\r
   pFO->cdda_left = cdda_left;\r
   pFO->cycles_played = spu.cycles_played;\r
   pFO->cycles_dma_end = spu.cycles_dma_end;\r
   pFO->decode_dirty_ch = spu.decode_dirty_ch;\r
   pFO->dwNoiseVal = spu.dwNoiseVal;\r
   pFO->dwNoiseCount = spu.dwNoiseCount;\r
   pFO->XARepeat = spu.XARepeat;\r
   pFO->XALastVal = spu.XALastVal;\r
   pFO->last_keyon_cycles = spu.last_keyon_cycles;\r
\r
   for(i=0;i<MAXCHAN;i++)\r
    {\r
     save_channel(&pFO->s_chan[i],&spu.s_chan[i],i);\r
     if(spu.s_chan[i].pCurr)\r
      pFO->s_chan[i].iCurr=spu.s_chan[i].pCurr-spu.spuMemC;\r
     if(spu.s_chan[i].pLoop)\r
      pFO->s_chan[i].iLoop=spu.s_chan[i].pLoop-spu.spuMemC;\r
    }\r
\r
   return 1;\r
   //--------------------------------------------------//\r
  }\r
                                                       \r
 if(ulFreezeMode!=0) return 0;                         // bad mode? bye\r
\r
 memcpy(spu.spuMem,pF->cSPURam,0x80000);               // get ram\r
 memcpy(spu.regArea,pF->cSPUPort,0x200);\r
 spu.bMemDirty = 1;\r
 spu.spuCtrl = regAreaGet(H_SPUctrl);\r
 spu.spuStat = regAreaGet(H_SPUstat);\r
\r
 if (!strcmp(pF->szSPUName,"PBOSS") && pF->ulFreezeVersion==5)\r
   pFO = LoadStateV5(pF, cycles);\r
 else LoadStateUnknown(pF, cycles);\r
\r
 spu.XAPlay = spu.XAFeed = spu.XAStart;\r
 spu.CDDAPlay = spu.CDDAFeed = spu.CDDAStart;\r
 if (pFO && pFO->xa_left && pF->xaS.nsamples) {        // start xa again\r
  FeedXA(&pF->xaS);\r
  spu.XAPlay = spu.XAFeed - pFO->xa_left;\r
  if (spu.XAPlay < spu.XAStart)\r
   spu.XAPlay = spu.XAStart;\r
 }\r
 else if (pFO && pFO->cdda_left) {                     // start cdda again\r
  FeedCDDA((void *)pF->xaS.pcm, pFO->cdda_left * 4);\r
 }\r
\r
 // not in old savestates\r
 spu.cycles_dma_end = 0;\r
 spu.decode_dirty_ch = spu.dwChannelsAudible & 0x0a;\r
 spu.dwNoiseVal = 0;\r
 spu.dwNoiseCount = 0;\r
 spu.XARepeat = 0;\r
 spu.XALastVal = 0;\r
 spu.last_keyon_cycles = cycles - 16*786u;\r
 if (pFO && pF->ulFreezeSize >= sizeof(*pF) + sizeof(*pFO)) {\r
  spu.cycles_dma_end = pFO->cycles_dma_end;\r
  spu.decode_dirty_ch = pFO->decode_dirty_ch;\r
  spu.dwNoiseVal = pFO->dwNoiseVal;\r
  spu.dwNoiseCount = pFO->dwNoiseCount;\r
  spu.XARepeat = pFO->XARepeat;\r
  spu.XALastVal = pFO->XALastVal;\r
  spu.last_keyon_cycles = pFO->last_keyon_cycles;\r
 }\r
\r
 // repair some globals\r
 for(i=0;i<=62;i+=2)\r
  load_register(H_Reverb+i, cycles);\r
 load_register(H_SPUReverbAddr, cycles);\r
 load_register(H_SPUrvolL, cycles);\r
 load_register(H_SPUrvolR, cycles);\r
 load_register(H_CDLeft, cycles);\r
 load_register(H_CDRight, cycles);\r
\r
 // reverb\r
 spu.rvb->StartAddr = regAreaGet(H_SPUReverbAddr) << 2;\r
 if (spu.rvb->CurrAddr < spu.rvb->StartAddr)\r
  spu.rvb->CurrAddr = spu.rvb->StartAddr;\r
 // fix to prevent new interpolations from crashing\r
 spu.interpolation = -1;\r
\r
 ClearWorkingState();\r
\r
 if (spu.spuCtrl & CTRL_IRQ)\r
  schedule_next_irq();\r
\r
 return 1;\r
}\r
\r
////////////////////////////////////////////////////////////////////////\r
\r
static SPUOSSFreeze_t * LoadStateV5(SPUFreeze_t * pF, uint32_t cycles)\r
{\r
 int i;SPUOSSFreeze_t * pFO;\r
\r
 pFO=(SPUOSSFreeze_t *)(pF+1);\r
\r
 spu.pSpuIrq = spu.spuMemC + ((spu.regArea[(H_SPUirqAddr - 0x0c00) / 2] << 3) & ~0xf);\r
\r
 if(pFO->spuAddr)\r
  {\r
   if (pFO->spuAddr == 0xbaadf00d) spu.spuAddr = 0;\r
   else spu.spuAddr = pFO->spuAddr & 0x7fffe;\r
  }\r
 spu.decode_pos = pFO->decode_pos & 0x1ff;\r
 spu.rvb->CurrAddr = pFO->rvb_cur;\r
 spu.cycles_played = pFO->cycles_played ? pFO->cycles_played : cycles;\r
\r
 spu.dwNewChannel=0;\r
 spu.dwChannelsAudible=0;\r
 spu.dwChannelDead=0;\r
 for(i=0;i<MAXCHAN;i++)\r
  {\r
   load_channel(&spu.s_chan[i],&pFO->s_chan[i],i);\r
\r
   spu.s_chan[i].pCurr+=(uintptr_t)spu.spuMemC;\r
   spu.s_chan[i].pLoop+=(uintptr_t)spu.spuMemC;\r
  }\r
\r
 return pFO;\r
}\r
\r
////////////////////////////////////////////////////////////////////////\r
\r
static void LoadStateUnknown(SPUFreeze_t * pF, uint32_t cycles)\r
{\r
 int i;\r
\r
 for(i=0;i<MAXCHAN;i++)\r
  {\r
   spu.s_chan[i].pLoop=spu.spuMemC;\r
  }\r
\r
 spu.dwNewChannel=0;\r
 spu.dwChannelsAudible=0;\r
 spu.dwChannelDead=0;\r
 spu.pSpuIrq=spu.spuMemC;\r
 spu.cycles_played = cycles;\r
\r
 for(i=0;i<0xc0;i++)\r
  {\r
   load_register(0x1f801c00 + i*2, cycles);\r
  }\r
}\r
\r
////////////////////////////////////////////////////////////////////////\r
// vim:shiftwidth=1:expandtab\r