util: Add util_bswap16.

2010-02-26 15:37:18 +00:00 · 2010-02-26 15:37:18 +00:00 · fda9a19b34
parent 092010db37
commit fda9a19b34
1 changed files with 11 additions and 0 deletions
--- a/src/gallium/auxiliary/util/u_math.h
+++ b/src/gallium/auxiliary/util/u_math.h
@ -531,6 +531,17 @@ util_bswap32(uint32_t n)
 }


+/**
+ * Reverse byte order of a 16 bit word.
+ */
+static INLINE uint16_t
+util_bswap16(uint16_t n)
+{
+   return (n >> 8) |
+          (n << 8);
+}
+
+
 /**
 * Clamp X to [MIN, MAX].
 * This is a macro to allow float, int, uint, etc. types.