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|
/***************************************************************************
freeze.c - description
-------------------
begin : Wed May 15 2002
copyright : (C) 2002 by Pete Bernert
email : BlackDove@addcom.de
***************************************************************************/
/***************************************************************************
* *
* This program is free software; you can redistribute it and/or modify *
* it under the terms of the GNU General Public License as published by *
* the Free Software Foundation; either version 2 of the License, or *
* (at your option) any later version. See also the license.txt file for *
* additional informations. *
* *
***************************************************************************/
#include "stdafx.h"
#define _IN_FREEZE
#include "externals.h"
#include "registers.h"
#include "spu.h"
////////////////////////////////////////////////////////////////////////
// freeze structs
////////////////////////////////////////////////////////////////////////
typedef struct
{
int State;
int AttackModeExp;
int AttackRate;
int DecayRate;
int SustainLevel;
int SustainModeExp;
int SustainIncrease;
int SustainRate;
int ReleaseModeExp;
int ReleaseRate;
int EnvelopeVol;
long lVolume;
long lDummy1;
long lDummy2;
} ADSRInfoEx_orig;
typedef struct
{
// no mutexes used anymore... don't need them to sync access
//HANDLE hMutex;
int bNew; // start flag
int iSBPos; // mixing stuff
int spos;
int sinc;
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? :)
int sval;
unsigned char * pStart; // start ptr into sound mem
unsigned char * pCurr; // current pos in sound mem
unsigned char * pLoop; // loop ptr in sound mem
int bOn; // is channel active (sample playing?)
int bStop; // is channel stopped (sample _can_ still be playing, ADSR Release phase)
int bReverb; // can we do reverb on this channel? must have ctrl register bit, to get active
int iActFreq; // current psx pitch
int iUsedFreq; // current pc pitch
int iLeftVolume; // left volume
int iLeftVolRaw; // left psx volume value
int bIgnoreLoop; // ignore loop bit, if an external loop address is used
int iMute; // mute mode
int iRightVolume; // right volume
int iRightVolRaw; // right psx volume value
int iRawPitch; // raw pitch (0...3fff)
int iIrqDone; // debug irq done flag
int s_1; // last decoding infos
int s_2;
int bRVBActive; // reverb active flag
int iRVBOffset; // reverb offset
int iRVBRepeat; // reverb repeat
int bNoise; // noise active flag
int bFMod; // freq mod (0=off, 1=sound channel, 2=freq channel)
int iRVBNum; // another reverb helper
int iOldNoise; // old noise val for this channel
ADSRInfo ADSR; // active ADSR settings
ADSRInfoEx_orig ADSRX; // next ADSR settings (will be moved to active on sample start)
} SPUCHAN_orig;
typedef struct
{
char szSPUName[8];
uint32_t ulFreezeVersion;
uint32_t ulFreezeSize;
unsigned char cSPUPort[0x200];
unsigned char cSPURam[0x80000];
xa_decode_t xaS;
} SPUFreeze_t;
typedef struct
{
unsigned short spuIrq;
uint32_t pSpuIrq;
uint32_t spuAddr;
uint32_t dummy1;
uint32_t dummy2;
uint32_t dummy3;
SPUCHAN_orig s_chan[MAXCHAN];
} SPUOSSFreeze_t;
////////////////////////////////////////////////////////////////////////
void LoadStateV5(SPUFreeze_t * pF); // newest version
void LoadStateUnknown(SPUFreeze_t * pF); // unknown format
extern int lastch;
// we want to retain compatibility between versions,
// so use original channel struct
static void save_channel(SPUCHAN_orig *d, const SPUCHAN *s, int ch)
{
memset(d, 0, sizeof(*d));
d->bNew = !!(dwNewChannel & (1<<ch));
d->iSBPos = s->iSBPos;
d->spos = s->spos;
d->sinc = s->sinc;
memcpy(d->SB, s->SB, sizeof(d->SB));
d->pStart = (unsigned char *)((regAreaGet(ch,6)&~1)<<3);
d->pCurr = s->pCurr;
d->pLoop = s->pLoop;
d->bOn = !!(dwChannelOn & (1<<ch));
d->bStop = s->bStop;
d->bReverb = s->bReverb;
d->iActFreq = 1;
d->iUsedFreq = 2;
d->iLeftVolume = s->iLeftVolume;
// this one is nasty but safe, save compat is important
d->bIgnoreLoop = (s->prevflags ^ 2) << 1;
d->iRightVolume = s->iRightVolume;
d->iRawPitch = s->iRawPitch;
d->s_1 = s->SB[27]; // yes it's reversed
d->s_2 = s->SB[26];
d->bRVBActive = s->bRVBActive;
d->bNoise = s->bNoise;
d->bFMod = s->bFMod;
d->ADSRX.State = s->ADSRX.State;
d->ADSRX.AttackModeExp = s->ADSRX.AttackModeExp;
d->ADSRX.AttackRate = s->ADSRX.AttackRate;
d->ADSRX.DecayRate = s->ADSRX.DecayRate;
d->ADSRX.SustainLevel = s->ADSRX.SustainLevel;
d->ADSRX.SustainModeExp = s->ADSRX.SustainModeExp;
d->ADSRX.SustainIncrease = s->ADSRX.SustainIncrease;
d->ADSRX.SustainRate = s->ADSRX.SustainRate;
d->ADSRX.ReleaseModeExp = s->ADSRX.ReleaseModeExp;
d->ADSRX.ReleaseRate = s->ADSRX.ReleaseRate;
d->ADSRX.EnvelopeVol = s->ADSRX.EnvelopeVol;
d->ADSRX.lVolume = d->bOn; // hmh
}
static void load_channel(SPUCHAN *d, const SPUCHAN_orig *s, int ch)
{
memset(d, 0, sizeof(*d));
if (s->bNew) dwNewChannel |= 1<<ch;
d->iSBPos = s->iSBPos;
d->spos = s->spos;
d->sinc = s->sinc;
memcpy(d->SB, s->SB, sizeof(d->SB));
d->pCurr = (void *)((long)s->pCurr & 0x7fff0);
d->pLoop = (void *)((long)s->pLoop & 0x7fff0);
if (s->bOn) dwChannelOn |= 1<<ch;
d->bStop = s->bStop;
d->bReverb = s->bReverb;
d->iLeftVolume = s->iLeftVolume;
d->iRightVolume = s->iRightVolume;
d->iRawPitch = s->iRawPitch;
d->bRVBActive = s->bRVBActive;
d->bNoise = s->bNoise;
d->bFMod = s->bFMod;
d->prevflags = (s->bIgnoreLoop >> 1) ^ 2;
d->ADSRX.State = s->ADSRX.State;
d->ADSRX.AttackModeExp = s->ADSRX.AttackModeExp;
d->ADSRX.AttackRate = s->ADSRX.AttackRate;
d->ADSRX.DecayRate = s->ADSRX.DecayRate;
d->ADSRX.SustainLevel = s->ADSRX.SustainLevel;
d->ADSRX.SustainModeExp = s->ADSRX.SustainModeExp;
d->ADSRX.SustainIncrease = s->ADSRX.SustainIncrease;
d->ADSRX.SustainRate = s->ADSRX.SustainRate;
d->ADSRX.ReleaseModeExp = s->ADSRX.ReleaseModeExp;
d->ADSRX.ReleaseRate = s->ADSRX.ReleaseRate;
d->ADSRX.EnvelopeVol = s->ADSRX.EnvelopeVol;
}
////////////////////////////////////////////////////////////////////////
// SPUFREEZE: called by main emu on savestate load/save
////////////////////////////////////////////////////////////////////////
long CALLBACK SPUfreeze(uint32_t ulFreezeMode,SPUFreeze_t * pF)
{
int i;SPUOSSFreeze_t * pFO;
if(!pF) return 0; // first check
if(ulFreezeMode) // info or save?
{//--------------------------------------------------//
if(ulFreezeMode==1)
memset(pF,0,sizeof(SPUFreeze_t)+sizeof(SPUOSSFreeze_t));
strcpy(pF->szSPUName,"PBOSS");
pF->ulFreezeVersion=5;
pF->ulFreezeSize=sizeof(SPUFreeze_t)+sizeof(SPUOSSFreeze_t);
if(ulFreezeMode==2) return 1; // info mode? ok, bye
// save mode:
memcpy(pF->cSPURam,spuMem,0x80000); // copy common infos
memcpy(pF->cSPUPort,regArea,0x200);
if(xapGlobal && XAPlay!=XAFeed) // some xa
{
pF->xaS=*xapGlobal;
}
else
memset(&pF->xaS,0,sizeof(xa_decode_t)); // or clean xa
pFO=(SPUOSSFreeze_t *)(pF+1); // store special stuff
pFO->spuIrq=spuIrq;
if(pSpuIrq) pFO->pSpuIrq = (unsigned long)pSpuIrq-(unsigned long)spuMemC;
pFO->spuAddr=spuAddr;
if(pFO->spuAddr==0) pFO->spuAddr=0xbaadf00d;
for(i=0;i<MAXCHAN;i++)
{
if(!(s_chan[i].prevflags&2))
dwChannelOn&=~(1<<i);
save_channel(&pFO->s_chan[i],&s_chan[i],i);
if(pFO->s_chan[i].pCurr)
pFO->s_chan[i].pCurr-=(unsigned long)spuMemC;
if(pFO->s_chan[i].pLoop)
pFO->s_chan[i].pLoop-=(unsigned long)spuMemC;
}
return 1;
//--------------------------------------------------//
}
if(ulFreezeMode!=0) return 0; // bad mode? bye
memcpy(spuMem,pF->cSPURam,0x80000); // get ram
memcpy(regArea,pF->cSPUPort,0x200);
if(pF->xaS.nsamples<=4032) // start xa again
SPUplayADPCMchannel(&pF->xaS);
xapGlobal=0;
if(!strcmp(pF->szSPUName,"PBOSS") && pF->ulFreezeVersion==5)
LoadStateV5(pF);
else LoadStateUnknown(pF);
lastch = -1;
// repair some globals
for(i=0;i<=62;i+=2)
SPUwriteRegister(H_Reverb+i,regArea[(H_Reverb+i-0xc00)>>1]);
SPUwriteRegister(H_SPUReverbAddr,regArea[(H_SPUReverbAddr-0xc00)>>1]);
SPUwriteRegister(H_SPUrvolL,regArea[(H_SPUrvolL-0xc00)>>1]);
SPUwriteRegister(H_SPUrvolR,regArea[(H_SPUrvolR-0xc00)>>1]);
SPUwriteRegister(H_SPUctrl,(unsigned short)(regArea[(H_SPUctrl-0xc00)>>1]|0x4000));
SPUwriteRegister(H_SPUstat,regArea[(H_SPUstat-0xc00)>>1]);
SPUwriteRegister(H_CDLeft,regArea[(H_CDLeft-0xc00)>>1]);
SPUwriteRegister(H_CDRight,regArea[(H_CDRight-0xc00)>>1]);
// fix to prevent new interpolations from crashing
for(i=0;i<MAXCHAN;i++) s_chan[i].SB[28]=0;
ClearWorkingState();
return 1;
}
////////////////////////////////////////////////////////////////////////
void LoadStateV5(SPUFreeze_t * pF)
{
int i;SPUOSSFreeze_t * pFO;
pFO=(SPUOSSFreeze_t *)(pF+1);
spuIrq = pFO->spuIrq;
if(pFO->pSpuIrq) pSpuIrq = spuMemC+((long)pFO->pSpuIrq&0x7fff0); else pSpuIrq=NULL;
if(pFO->spuAddr)
{
spuAddr = pFO->spuAddr;
if (spuAddr == 0xbaadf00d) spuAddr = 0;
}
dwNewChannel=0;
dwChannelOn=0;
dwChannelDead=0;
for(i=0;i<MAXCHAN;i++)
{
load_channel(&s_chan[i],&pFO->s_chan[i],i);
s_chan[i].pCurr+=(unsigned long)spuMemC;
s_chan[i].pLoop+=(unsigned long)spuMemC;
}
}
////////////////////////////////////////////////////////////////////////
void LoadStateUnknown(SPUFreeze_t * pF)
{
int i;
for(i=0;i<MAXCHAN;i++)
{
s_chan[i].bStop=0;
s_chan[i].pLoop=spuMemC;
}
dwNewChannel=0;
dwChannelOn=0;
dwChannelDead=0;
pSpuIrq=0;
for(i=0;i<0xc0;i++)
{
SPUwriteRegister(0x1f801c00+i*2,regArea[i]);
}
}
////////////////////////////////////////////////////////////////////////
|
