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| author | Keith Whitwell <keithw@vmware.com> | 2009-09-23 17:37:28 +0100 |
|---|---|---|
| committer | Keith Whitwell <keithw@vmware.com> | 2009-09-23 17:37:28 +0100 |
| commit | 890679d4322e7ba4f12f32532a3fdd277edff886 (patch) | |
| tree | 37df5e8a53f7da9fdcaf2e9660c694e28e14b5bc /src/gallium/auxiliary/util/u_math.h | |
| parent | a1fa770c01d913658900de1c267fb4c41bc6300d (diff) | |
| parent | 75276ea316610a5737f2115326482024aa09d02a (diff) | |
Merge branch 'softpipe-opt'
Conflicts:
progs/demos/cubemap.c
src/gallium/drivers/softpipe/sp_tex_sample.c
src/gallium/drivers/softpipe/sp_texture.c
Diffstat (limited to 'src/gallium/auxiliary/util/u_math.h')
| -rw-r--r-- | src/gallium/auxiliary/util/u_math.h | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/src/gallium/auxiliary/util/u_math.h b/src/gallium/auxiliary/util/u_math.h index b428dc544c..cd6a9fcc09 100644 --- a/src/gallium/auxiliary/util/u_math.h +++ b/src/gallium/auxiliary/util/u_math.h @@ -283,6 +283,14 @@ util_fast_pow(float x, float y) return util_fast_exp2(util_fast_log2(x) * y); } +/* Note that this counts zero as a power of two. + */ +static INLINE boolean +util_is_power_of_two( unsigned v ) +{ + return (v & (v-1)) == 0; +} + /** * Floor(x), returned as int. |