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Fix handling of -32768 in the muLaw encoder

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Chris Robinson 2010-12-01 02:24:39 -08:00
parent 8a52c44d15
commit e3afc3587e
1 changed files with 7 additions and 1 deletions
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8
OpenAL32/alBuffer.c
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@ -838,7 +838,13 @@ static ALmulaw EncodeMuLaw(ALshort val)
ALint mant, exp, sign; ALint mant, exp, sign;
sign = (val>>8) & 0x80; sign = (val>>8) & 0x80;
if(sign) val = (ALshort)-val; if(sign)
{
/* -32768 doesn't properly negate on a short; it results in itself.
* So clamp to -32767 */
val = max(val, -32767);
val = -val;
}
val = min(val, muLawClip); val = min(val, muLawClip);
val += muLawBias; val += muLawBias;