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| author | Brian Paul <brian.paul@tungstengraphics.com> | 2008-11-11 14:42:41 -0700 |
|---|---|---|
| committer | Brian Paul <brian.paul@tungstengraphics.com> | 2008-11-11 14:42:41 -0700 |
| commit | 19e4222f937c9bb95d3a899dd788afb930eecaa4 (patch) | |
| tree | 5bb25227f53ad93fbdb9dc889ded690dc40ad1d9 /src/mesa/main/imports.h | |
| parent | 7f3d45758ccbbcff6428d57d26794960e3e9532c (diff) | |
| parent | 90246d3ea54f54d60593dce1b89f0226058a3c56 (diff) | |
Merge commit 'origin/master' into gallium-0.2
Conflicts:
src/mesa/shader/prog_execute.c
src/mesa/shader/slang/library/slang_vertex_builtin_gc.h
Diffstat (limited to 'src/mesa/main/imports.h')
| -rw-r--r-- | src/mesa/main/imports.h | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/src/mesa/main/imports.h b/src/mesa/main/imports.h index 0e6e301fde..bab0042071 100644 --- a/src/mesa/main/imports.h +++ b/src/mesa/main/imports.h @@ -462,6 +462,16 @@ static INLINE int iceil(float f) #endif +/** + * Is x a power of two? + */ +static INLINE int +_mesa_is_pow_two(int x) +{ + return !(x & (x - 1)); +} + + /*** *** UNCLAMPED_FLOAT_TO_UBYTE: clamp float to [0,1] and map to ubyte in [0,255] *** CLAMPED_FLOAT_TO_UBYTE: map float known to be in [0,1] to ubyte in [0,255] |