glm/test/external/gli/core/levels.inl

#include <glm/gtc/integer.hpp>
#include <glm/gtx/component_wise.hpp>

namespace gli
{
	template <int D, typename T, precision P, template <int, typename, precision> class vecType>
	inline T levels(vecType<D, T, P> const& Extent)
	{
		return glm::log2(compMax(Extent)) + static_cast<T>(1);
	}

	template <typename T>
	inline T levels(T Extent)
	{
		return static_cast<T>(glm::log2(Extent) + static_cast<size_t>(1));
	}
/*
	inline int levels(int Extent)
	{
		return glm::log2(Extent) + static_cast<int>(1);
	}
*/
}//namespace gli