1 files changed, 21 insertions, 3 deletions
diff --git a/source/blender/blenlib/intern/math_base_inline.c b/source/blender/blenlib/intern/math_base_inline.c
index f27da759482..b9866f9c6e6 100644
--- a/source/blender/blenlib/intern/math_base_inline.c
+++ b/source/blender/blenlib/intern/math_base_inline.c
@@ -27,6 +27,8 @@
  *  \ingroup bli
  */
 
+#ifndef __MATH_BASE_INLINE_C__
+#define __MATH_BASE_INLINE_C__
 
 #include <float.h>
 #include <stdio.h>
@@ -35,9 +37,6 @@
 
 #include "BLI_math.h"
 
-#ifndef __MATH_BASE_INLINE_C__
-#define __MATH_BASE_INLINE_C__
-
 /* A few small defines. Keep'em local! */
 #define SMALL_NUMBER  1.e-8f
 
@@ -139,6 +138,25 @@ MINLINE int power_of_2_min_i(int n)
 	return n;
 }
 
+MINLINE unsigned int highest_order_bit_i(unsigned int n)
+{
+	n |= (n >>  1);
+	n |= (n >>  2);
+	n |= (n >>  4);
+	n |= (n >>  8);
+	n |= (n >> 16);
+	return n - (n >> 1);
+}
+
+MINLINE unsigned short highest_order_bit_s(unsigned short n)
+{
+	n |= (n >>  1);
+	n |= (n >>  2);
+	n |= (n >>  4);
+	n |= (n >>  8);
+	return n - (n >> 1);
+}
+
 MINLINE float min_ff(float a, float b)
 {
 	return (a < b) ? a : b;