Mercurial > hg > qm-dsp

diff maths/MathUtilities.h @ 55:7fe29d8a7eaf

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
* Various fixes related to the bar estimator code
author cannam
date Tue, 10 Feb 2009 16:37:11 +0000
parents 5bec06ecc88a
children 054c384d860d
line wrap: on
line diff
--- a/maths/MathUtilities.h	Tue Feb 10 12:52:43 2009 +0000
+++ b/maths/MathUtilities.h	Tue Feb 10 16:37:11 2009 +0000
@@ -52,6 +52,11 @@
 
     // moving mean threshholding:
     static void adaptiveThreshold(std::vector<double> &data);
+
+    static bool isPowerOfTwo(int x);
+    static int nextPowerOfTwo(int x); // e.g. 1300 -> 2048, 2048 -> 2048
+    static int previousPowerOfTwo(int x); // e.g. 1300 -> 1024, 2048 -> 2048
+    static int nearestPowerOfTwo(int x); // e.g. 1300 -> 1024, 1700 -> 2048
 };
 
 #endif