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Fix infinite release rate in the new SPU, fixes Brave Blade (no whatsnew)

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This commit is contained in:
R. Belmont 2011-02-12 21:15:53 +00:00
parent 84a312758a
commit 94278c9abe
1 changed files with 9 additions and 2 deletions
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11
src/emu/sound/spu.c
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@ -161,7 +161,7 @@ static const int filter_coef[5][2]=
//
//
#ifdef debug_spu
#ifdef debug_spu_registers
#define _voice_registers(_voice) \
"voice"#_voice".voll", \
"voice"#_voice".volr", \
@ -2299,7 +2299,14 @@ bool spu_device::update_envelope(const int v)
case 4: // release
voice[v].env_level=mindb(1.0f,maxdb(0.0f,voice[v].env_level));
voice[v].env_delta=voice[v].env_rr;
voice[v].envsamples=(unsigned int)(voice[v].env_level/-voice[v].env_rr);
if (voice[v].env_rr == -0.0f) // 0.0 release means infinite time
{
voice[v].envsamples=infinity;
}
else
{
voice[v].envsamples=(unsigned int)(voice[v].env_level/-voice[v].env_rr);
}
break;
case 5: // release end