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dsp cleaning

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git-svn-id: https://dolphin-emu.googlecode.com/svn/trunk@6846 8ced0084-cf51-0410-be5f-012b33b47a6e
This commit is contained in:
Marko Pusljar 2011-01-14 12:08:45 +00:00
commit 3cba9afe79
5 changed files with 36 additions and 47 deletions
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37
Source/Plugins/Plugin_DSP_HLE/Src/UCodes/UCode_Zelda_Synth.cpp
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@ -119,29 +119,24 @@ void CUCode_Zelda::RenderSynth_Constant(ZeldaVoicePB &PB, s32* _Buffer, int _Siz
// A piece of code from LLE so we can see how the wrap register affects the sound
// HORRIBLE UGLINESS, someone please fix.
// See http://code.google.com/p/dolphin-emu/source/detail?r=3125
inline u16 ToMask(u16 a)
inline u16 AddValueToReg(u32 ar, s32 ix)
{
a = a | (a >> 8);
a = a | (a >> 4);
a = a | (a >> 2);
return a | (a >> 1);
}
u32 wr = 0x3f;
u32 mx = (wr | 1) << 1;
u32 nar = ar + ix;
u32 dar = (nar ^ ar ^ ix) & mx;
inline s16 AddValueToReg(s16 reg, s32 value)
{
s16 tmp = reg;
u16 tmb = ToMask(0x003f);
for(int i = 0; i < value; i++) {
if ((tmp & tmb) == tmb)
tmp ^= 0x003f;
else
tmp++;
if (ix >= 0)
{
if (dar > wr) //overflow
nar -= wr + 1;
}
return tmp;
else
{
if ((((nar + wr + 1) ^ nar) & dar) <= wr) //underflow or below min for mask
nar += wr + 1;
}
return nar;
}
void CUCode_Zelda::RenderSynth_WaveTable(ZeldaVoicePB &PB, s32* _Buffer, int _Size)
@ -167,7 +162,7 @@ void CUCode_Zelda::RenderSynth_WaveTable(ZeldaVoicePB &PB, s32* _Buffer, int _Si
}
// TODO: Resample this!
WARN_LOG(DSPHLE, "Synthesizing the incomplete format 0x%04x", PB.Format);
INFO_LOG(DSPHLE, "Synthesizing the incomplete format 0x%04x", PB.Format);
u64 ACC0 = PB.CurSampleFrac << 6;