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audio: fix integer overflow expression
Fix an integer overflow that can happen for signed 32 bit types when using FLOAT_MIXENG. (Note that at the moment this is only true when using the MacOSX coreaudio audio driver.) Signed-off-by: Juha Riihim?ki <juha.riihimaki@nokia.com> [Peter Maydell: Removed unnecessary casts] Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: malc <av1474@comtv.ru>
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@ -46,7 +46,7 @@ static mixeng_real inline glue (conv_, ET) (IN_T v)
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#endif
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#else /* !RECIPROCAL */
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#ifdef SIGNED
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return nv / (mixeng_real) (IN_MAX - IN_MIN);
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return nv / (mixeng_real) ((mixeng_real) IN_MAX - IN_MIN);
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#else
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return (nv - HALF) / (mixeng_real) IN_MAX;
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#endif
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@ -63,7 +63,7 @@ static IN_T inline glue (clip_, ET) (mixeng_real v)
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}
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#ifdef SIGNED
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return ENDIAN_CONVERT ((IN_T) (v * (IN_MAX - IN_MIN)));
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return ENDIAN_CONVERT ((IN_T) (v * ((mixeng_real) IN_MAX - IN_MIN)));
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#else
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return ENDIAN_CONVERT ((IN_T) ((v * IN_MAX) + HALF));
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#endif
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