X-Git-Url: http://git.tdb.fi/?a=blobdiff_plain;f=source%2Fcore%2Ftexture.cpp;h=0d7a81512e7f73f5c0a49659b4feddc16739c582;hb=be962824e72a7d5e2946ad4c0e69e01c60da30e8;hp=73dd39b6c5cf79a5662a31ff3846b8981fc677b6;hpb=d0df3ba82b187705331e2cc55d515c2d44e7f466;p=libs%2Fgl.git

diff --git a/source/core/texture.cpp b/source/core/texture.cpp
index 73dd39b6..0d7a8151 100644
--- a/source/core/texture.cpp
+++ b/source/core/texture.cpp
@@ -34,6 +34,13 @@ void Texture::set_format(PixelFormat fmt)
 	swizzle = swiz;
 }
 
+unsigned Texture::count_levels(unsigned size)
+{
+	unsigned n = 0;
+	for(; size; size>>=1, ++n) ;
+	return n;
+}
+
 void Texture::load_image(const string &fn, unsigned lv)
 {
 	Graphics::Image img;