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Simplify the code in MixADSR, and restore a few values I changed inadvertantly. 

git-svn-id: http://pcsx2-playground.googlecode.com/svn/trunk@506 a6443dda-0b58-4228-96e9-037be469359c
This commit is contained in:
arcum42 2008-12-27 02:14:10 +00:00 committed by Gregory Hainaut
parent 4531a1406f
commit 8b00b31411
1 changed files with 39 additions and 70 deletions
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109
plugins/zerospu2/zerospu2.cpp
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@ -397,29 +397,18 @@ int MixADSR(VOICE_PROCESSED* pvoice) // MIX ADSR
if (pvoice->bStop) // should be stopped:
{
if (pvoice->bIgnoreLoop == 0)
{
pvoice->ADSRX.EnvelopeVol=0;
pvoice->bOn=false;
pvoice->pStart= (u8*)(spu2mem+pvoice->iStartAddr);
pvoice->pLoop= (u8*)(spu2mem+pvoice->iStartAddr);
pvoice->pCurr= (u8*)(spu2mem+pvoice->iStartAddr);
pvoice->bStop=true;
pvoice->bIgnoreLoop=false;
return 0;
}
if (pvoice->ADSRX.ReleaseModeExp) // do release
{
s32 temp = ((pvoice->ADSRX.EnvelopeVol>>28)&0x7);
pvoice->ADSRX.EnvelopeVol-=RateTable[(4*(pvoice->ADSRX.ReleaseRate^0x1F))-0x18 + rateadd[temp] + 32];
pvoice->ADSRX.EnvelopeVol-=RateTable[(4*(pvoice->ADSRX.ReleaseRate^0x1F)) - 0x18 + rateadd[temp] + 32];
}
else
{
pvoice->ADSRX.EnvelopeVol-=RateTable[(4*(pvoice->ADSRX.ReleaseRate^0x1F))-0x0C + 32];
pvoice->ADSRX.EnvelopeVol-=RateTable[(4*(pvoice->ADSRX.ReleaseRate^0x1F)) - 0x0C + 32];
}
if (pvoice->ADSRX.EnvelopeVol<0)
// bIgnoreLoop sets EnvelopeVol to 0 anyways, so we can use one if statement rather then two.
if ((pvoice->ADSRX.EnvelopeVol<0) || (pvoice->bIgnoreLoop == 0))
{
pvoice->ADSRX.EnvelopeVol=0;
pvoice->bOn=false;
@ -438,8 +427,11 @@ int MixADSR(VOICE_PROCESSED* pvoice) // MIX ADSR
}
else // not stopped yet?
{
if (pvoice->ADSRX.State==0) // -> attack
s32 temp = ((pvoice->ADSRX.EnvelopeVol>>28)&0x7);
switch (pvoice->ADSRX.State)
{
case 0: // -> attack
if (pvoice->ADSRX.AttackModeExp)
{
if (pvoice->ADSRX.EnvelopeVol<0x60000000)
@ -457,69 +449,47 @@ int MixADSR(VOICE_PROCESSED* pvoice) // MIX ADSR
pvoice->ADSRX.EnvelopeVol=0x7FFFFFFF;
pvoice->ADSRX.State=1;
}
pvoice->ADSRX.lVolume=pvoice->ADSRX.EnvelopeVol>>21;
return pvoice->ADSRX.lVolume;
}
//--------------------------------------------------//
if (pvoice->ADSRX.State==1) // -> decay
{
s32 temp = ((pvoice->ADSRX.EnvelopeVol>>28)&0x7);
break;
pvoice->ADSRX.EnvelopeVol-=RateTable[(4*(pvoice->ADSRX.ReleaseRate^0x1F))-0x18 + rateadd[temp] + 32];
case 1: // -> decay
pvoice->ADSRX.EnvelopeVol-=RateTable[(4*(pvoice->ADSRX.DecayRate^0x1F)) - 0x18+ rateadd[temp] + 32];
if (pvoice->ADSRX.EnvelopeVol<0)
pvoice->ADSRX.EnvelopeVol=0;
if (pvoice->ADSRX.EnvelopeVol<0) pvoice->ADSRX.EnvelopeVol=0;
if (((pvoice->ADSRX.EnvelopeVol>>27)&0xF) <= pvoice->ADSRX.SustainLevel)
pvoice->ADSRX.State=2;
pvoice->ADSRX.lVolume=pvoice->ADSRX.EnvelopeVol>>21;
return pvoice->ADSRX.lVolume;
}
//--------------------------------------------------//
if (pvoice->ADSRX.State==2) // -> sustain
{
break;
case 2: // -> sustain
if (pvoice->ADSRX.SustainIncrease)
{
if (pvoice->ADSRX.SustainModeExp)
{
if (pvoice->ADSRX.EnvelopeVol<0x60000000)
pvoice->ADSRX.EnvelopeVol+=RateTable[(pvoice->ADSRX.SustainRate^0x7F)-0x10 + 32];
else
pvoice->ADSRX.EnvelopeVol+=RateTable[(pvoice->ADSRX.SustainRate^0x7F)-0x18 + 32];
}
if ((pvoice->ADSRX.SustainModeExp) && (pvoice->ADSRX.EnvelopeVol>=0x60000000))
pvoice->ADSRX.EnvelopeVol+=RateTable[(pvoice->ADSRX.SustainRate^0x7F) - 0x18 + 32];
else
{
pvoice->ADSRX.EnvelopeVol+=RateTable[(pvoice->ADSRX.SustainRate^0x7F)-0x10 + 32];
}
pvoice->ADSRX.EnvelopeVol+=RateTable[(pvoice->ADSRX.SustainRate^0x7F) - 0x10 + 32];
if (pvoice->ADSRX.EnvelopeVol<0)
{
pvoice->ADSRX.EnvelopeVol=0x7FFFFFFF;
}
if (pvoice->ADSRX.EnvelopeVol<0) pvoice->ADSRX.EnvelopeVol=0x7FFFFFFF;
}
else
{
if (pvoice->ADSRX.SustainModeExp)
{
s32 temp = ((pvoice->ADSRX.EnvelopeVol>>28)&0x7);
pvoice->ADSRX.EnvelopeVol-=RateTable[(4*(pvoice->ADSRX.ReleaseRate^0x1F))-0x18 + rateadd[temp] + 32];
}
pvoice->ADSRX.EnvelopeVol-=RateTable[((pvoice->ADSRX.SustainRate^0x7F)) - 0x1B +rateadd[temp] + 32];
else
{
pvoice->ADSRX.EnvelopeVol-=RateTable[((pvoice->ADSRX.SustainRate^0x7F))-0x0F + 32];
}
pvoice->ADSRX.EnvelopeVol-=RateTable[((pvoice->ADSRX.SustainRate^0x7F)) - 0x0F + 32];
if (pvoice->ADSRX.EnvelopeVol<0)
{
pvoice->ADSRX.EnvelopeVol=0;
}
if (pvoice->ADSRX.EnvelopeVol<0) pvoice->ADSRX.EnvelopeVol=0;
}
pvoice->ADSRX.lVolume=pvoice->ADSRX.EnvelopeVol>>21;
return pvoice->ADSRX.lVolume;
break;
default:
// This should never happen.
return 0;
}
pvoice->ADSRX.lVolume=pvoice->ADSRX.EnvelopeVol>>21;
return pvoice->ADSRX.lVolume;
}
return 0;
}
@ -1662,19 +1632,18 @@ void VOICE_PROCESSED::SetVolume(int iProcessRight)
if (vol&0x8000) // sweep not working
{
short sInc=1; // -> sweep up?
short sInc=1; // -> sweep up?
if (vol&0x2000) sInc=-1; // -> or down?
if (vol&0x1000) vol^=0xffff; // -> mmm... phase inverted? have to investigate this
if (vol&0x2000) sInc=-1; // -> or down?
if (vol&0x1000) vol^=0xffff; // -> mmm... phase inverted? have to investigate this
vol=((vol&0x7f)+1)/2; // -> sweep: 0..127 -> 0..64
vol+=vol/(2*sInc); // -> HACK: we don't sweep right now, so we just raise/lower the volume by the half!
vol=((vol&0x7f)+1)/2; // -> sweep: 0..127 -> 0..64
vol+=vol/(2*sInc); // -> HACK: we don't sweep right now, so we just raise/lower the volume by the half!
vol*=128;
}
else // no sweep:
else // no sweep:
{
if (vol&0x4000) // -> mmm... phase inverted? have to investigate this
vol=0x3fff-(vol&0x3fff);
if (vol&0x4000) vol=0x3fff-(vol&0x3fff); // -> mmm... phase inverted? have to investigate this
}
if ( iProcessRight )