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Fix MixAdd with volume. The previous volume formula completely failed with volumes >= 1.0 (0x8000). Fixes Tomb Raider Legends (GC) music.

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This commit is contained in:
Pierre Bourdon 2012-12-18 07:01:22 +01:00
commit 1cecbaedce
1 changed files with 5 additions and 2 deletions
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7
Source/Core/Core/Src/HW/DSPHLE/UCodes/UCode_AX_Voice.h
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@ -337,8 +337,11 @@ void MixAdd(int* out, const s16* input, u16* pvol, bool ramp)
for (u32 i = 0; i < 32; ++i) for (u32 i = 0; i < 32; ++i)
{ {
s64 sample = 2 * (s16)input[i] * (s16)volume; s64 sample = input[i];
out[i] += (s32)(sample >> 16); sample *= volume;
sample >>= 15;
out[i] += (s32)sample;
volume += volume_delta; volume += volume_delta;
} }
} }