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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 AttackModeExp;
int AttackTime;
int DecayTime;
int SustainLevel;
int SustainModeExp;
int SustainModeDec;
int SustainTime;
int ReleaseModeExp;
unsigned int ReleaseVal;
int ReleaseTime;
int ReleaseStartTime;
int ReleaseVol;
int lTime;
int lVolume;
} ADSRInfo;
typedef struct
{
int State;
int AttackModeExp;
int AttackRate;
int DecayRate;
int SustainLevel;
int SustainModeExp;
int SustainIncrease;
int SustainRate;
int ReleaseModeExp;
int ReleaseRate;
int EnvelopeVol;
int lVolume;
int lDummy1;
int 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;
int iStart; // start ptr into sound mem
int iCurr; // current pos in sound mem
int iLoop; // 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, uint32_t cycles); // unknown format
// 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 = !!(spu.dwNewChannel & (1<<ch));
d->iSBPos = s->iSBPos;
d->spos = s->spos;
d->sinc = s->sinc;
memcpy(d->SB, spu.SB + ch * SB_SIZE, sizeof(d->SB[0]) * SB_SIZE);
d->iStart = (regAreaGet(ch,6)&~1)<<3;
d->iCurr = 0; // set by the caller
d->iLoop = 0; // set by the caller
d->bOn = !!(spu.dwChannelOn & (1<<ch));
d->bStop = s->ADSRX.State == ADSR_RELEASE;
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 = spu.SB[ch * SB_SIZE + 27]; // yes it's reversed
d->s_2 = spu.SB[ch * SB_SIZE + 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) spu.dwNewChannel |= 1<<ch;
d->iSBPos = s->iSBPos;
if ((uint32_t)d->iSBPos >= 28) d->iSBPos = 27;
d->spos = s->spos;
d->sinc = s->sinc;
d->sinc_inv = 0;
memcpy(spu.SB + ch * SB_SIZE, s->SB, sizeof(spu.SB[0]) * SB_SIZE);
d->pCurr = (void *)((long)s->iCurr & 0x7fff0);
d->pLoop = (void *)((long)s->iLoop & 0x7fff0);
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;
if (s->bStop) d->ADSRX.State = ADSR_RELEASE;
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;
if (s->bOn) spu.dwChannelOn |= 1<<ch;
else d->ADSRX.EnvelopeVol = 0;
}
// force load from regArea to variables
static void load_register(unsigned long reg, unsigned int cycles)
{
unsigned short *r = &spu.regArea[((reg & 0xfff) - 0xc00) >> 1];
*r ^= 1;
SPUwriteRegister(reg, *r ^ 1, cycles);
}
////////////////////////////////////////////////////////////////////////
// SPUFREEZE: called by main emu on savestate load/save
////////////////////////////////////////////////////////////////////////
long CALLBACK SPUfreeze(uint32_t ulFreezeMode, SPUFreeze_t * pF,
uint32_t cycles)
{
int i;SPUOSSFreeze_t * pFO;
if(!pF) return 0; // first check
do_samples(cycles, 1);
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,spu.spuMem,0x80000); // copy common infos
memcpy(pF->cSPUPort,spu.regArea,0x200);
if(spu.xapGlobal && spu.XAPlay!=spu.XAFeed) // some xa
{
pF->xaS=*spu.xapGlobal;
}
else
memset(&pF->xaS,0,sizeof(xa_decode_t)); // or clean xa
pFO=(SPUOSSFreeze_t *)(pF+1); // store special stuff
pFO->spuIrq = spu.regArea[(H_SPUirqAddr - 0x0c00) / 2];
if(spu.pSpuIrq) pFO->pSpuIrq = (unsigned long)spu.pSpuIrq-(unsigned long)spu.spuMemC;
pFO->spuAddr=spu.spuAddr;
if(pFO->spuAddr==0) pFO->spuAddr=0xbaadf00d;
for(i=0;i<MAXCHAN;i++)
{
save_channel(&pFO->s_chan[i],&spu.s_chan[i],i);
if(spu.s_chan[i].pCurr)
pFO->s_chan[i].iCurr=spu.s_chan[i].pCurr-spu.spuMemC;
if(spu.s_chan[i].pLoop)
pFO->s_chan[i].iLoop=spu.s_chan[i].pLoop-spu.spuMemC;
}
return 1;
//--------------------------------------------------//
}
if(ulFreezeMode!=0) return 0; // bad mode? bye
memcpy(spu.spuMem,pF->cSPURam,0x80000); // get ram
memcpy(spu.regArea,pF->cSPUPort,0x200);
if(pF->xaS.nsamples<=4032) // start xa again
SPUplayADPCMchannel(&pF->xaS);
spu.xapGlobal=0;
if(!strcmp(pF->szSPUName,"PBOSS") && pF->ulFreezeVersion==5)
LoadStateV5(pF);
else LoadStateUnknown(pF, cycles);
// repair some globals
for(i=0;i<=62;i+=2)
load_register(H_Reverb+i, cycles);
load_register(H_SPUReverbAddr, cycles);
load_register(H_SPUrvolL, cycles);
load_register(H_SPUrvolR, cycles);
load_register(H_SPUctrl, cycles);
load_register(H_SPUstat, cycles);
load_register(H_CDLeft, cycles);
load_register(H_CDRight, cycles);
// fix to prevent new interpolations from crashing
for(i=0;i<MAXCHAN;i++) spu.SB[i * SB_SIZE + 28]=0;
ClearWorkingState();
spu.cycles_played = cycles;
if (spu.spuCtrl & CTRL_IRQ)
schedule_next_irq();
return 1;
}
////////////////////////////////////////////////////////////////////////
void LoadStateV5(SPUFreeze_t * pF)
{
int i;SPUOSSFreeze_t * pFO;
pFO=(SPUOSSFreeze_t *)(pF+1);
spu.pSpuIrq = spu.spuMemC + ((spu.regArea[(H_SPUirqAddr - 0x0c00) / 2] << 3) & ~0xf);
if(pFO->spuAddr)
{
if (pFO->spuAddr == 0xbaadf00d) spu.spuAddr = 0;
else spu.spuAddr = pFO->spuAddr & 0x7fffe;
}
spu.dwNewChannel=0;
spu.dwChannelOn=0;
spu.dwChannelDead=0;
for(i=0;i<MAXCHAN;i++)
{
load_channel(&spu.s_chan[i],&pFO->s_chan[i],i);
spu.s_chan[i].pCurr+=(unsigned long)spu.spuMemC;
spu.s_chan[i].pLoop+=(unsigned long)spu.spuMemC;
}
}
////////////////////////////////////////////////////////////////////////
void LoadStateUnknown(SPUFreeze_t * pF, uint32_t cycles)
{
int i;
for(i=0;i<MAXCHAN;i++)
{
spu.s_chan[i].pLoop=spu.spuMemC;
}
spu.dwNewChannel=0;
spu.dwChannelOn=0;
spu.dwChannelDead=0;
spu.pSpuIrq=spu.spuMemC;
for(i=0;i<0xc0;i++)
{
load_register(0x1f801c00 + i*2, cycles);
}
}
////////////////////////////////////////////////////////////////////////
|
