#endif
+#ifndef M_SQRT2
+#define M_SQRT2 1.41421356237309504880
+#endif
+
+
#if defined(_MSC_VER)
#if _MSC_VER < 1400 && !defined(__cplusplus) || defined(PIPE_SUBSYSTEM_WINDOWS_CE)
}
-/**
- * Test whether x is a power of two.
- */
-static INLINE boolean
-util_is_pot(unsigned x)
-{
- return (x & (x - 1)) == 0;
-}
-
-
/**
* Find first bit set in word. Least significant bit is 1.
* Return 0 if no bits set.
#define MIN3( A, B, C ) MIN2( MIN2( A, B ), C )
#define MAX3( A, B, C ) MAX2( MAX2( A, B ), C )
+#define MIN4( A, B, C, D ) MIN2( MIN2( A, B ), MIN2(C, D) )
+#define MAX4( A, B, C, D ) MAX2( MAX2( A, B ), MAX2(C, D) )
+
+/**
+ * Align a value, only works pot alignemnts.
+ */
static INLINE int
align(int value, int alignment)
{
return (value + alignment - 1) & ~(alignment - 1);
}
+/**
+ * Works like align but on npot alignments.
+ */
+static INLINE size_t
+util_align_npot(size_t value, size_t alignment)
+{
+ if (value % alignment)
+ return value + (alignment - (value % alignment));
+ return value;
+}
+
static INLINE unsigned
u_minify(unsigned value, unsigned levels)
{