Added check and warning about non-power-of-2 textures

1 files changed, 6 insertions, 0 deletions

diff --git a/src/math/func.h b/src/math/func.h
index 413b5d9..83e8ca4 100644
--- a/src/math/func.h
+++ b/src/math/func.h
@@ -128,6 +128,12 @@ inline float Rand()
     return static_cast<float>(rand()) / static_cast<float>(RAND_MAX);
 }
 
+//! Returns whether \a x is an even power of 2
+inline bool IsPowerOfTwo(unsigned int x)
+{
+   return x && !(x & (x - 1));
+}
+
 //! Returns the next nearest power of two to \a x
 inline int NextPowerOfTwo(int x)
 {