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| author | Michal Krol <michal@tungstengraphics.com> | 2008-11-12 17:14:07 +0100 |
|---|---|---|
| committer | Michal Krol <michal@tungstengraphics.com> | 2008-11-12 17:14:07 +0100 |
| commit | f447eea4de9cab5de295c717d35824cf92b9f322 (patch) | |
| tree | ea08e459d2ee7e544de9a1495c5e3e2f98285297 | |
| parent | a983f2a6ac04edc2b3407b44c2a1b5bc970c4ce3 (diff) | |
util: Add log2() definition for MSC.
| -rw-r--r-- | src/gallium/auxiliary/util/u_math.h | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/src/gallium/auxiliary/util/u_math.h b/src/gallium/auxiliary/util/u_math.h index be7303e550..c7bbebc428 100644 --- a/src/gallium/auxiliary/util/u_math.h +++ b/src/gallium/auxiliary/util/u_math.h @@ -161,6 +161,11 @@ static INLINE float logf( float f ) return (float) log( (double) f ); } +static INLINE double log2( double x ) +{ + return log( x ) / log( 2.0 ); +} + #else /* Work-around an extra semi-colon in VS 2005 logf definition */ #ifdef logf |