1 files changed, 243 insertions, 0 deletions
diff --git a/Project/glm/detail/func_geometric.inl b/Project/glm/detail/func_geometric.inl
new file mode 100644
index 0000000..9cde28f
--- /dev/null
+++ b/Project/glm/detail/func_geometric.inl
@@ -0,0 +1,243 @@
+#include "../exponential.hpp"
+#include "../common.hpp"
+
+namespace glm{
+namespace detail
+{
+	template<length_t L, typename T, qualifier Q, bool Aligned>
+	struct compute_length
+	{
+		GLM_FUNC_QUALIFIER static T call(vec<L, T, Q> const& v)
+		{
+			return sqrt(dot(v, v));
+		}
+	};
+
+	template<length_t L, typename T, qualifier Q, bool Aligned>
+	struct compute_distance
+	{
+		GLM_FUNC_QUALIFIER static T call(vec<L, T, Q> const& p0, vec<L, T, Q> const& p1)
+		{
+			return length(p1 - p0);
+		}
+	};
+
+	template<typename V, typename T, bool Aligned>
+	struct compute_dot{};
+
+	template<typename T, qualifier Q, bool Aligned>
+	struct compute_dot<vec<1, T, Q>, T, Aligned>
+	{
+		GLM_FUNC_QUALIFIER static T call(vec<1, T, Q> const& a, vec<1, T, Q> const& b)
+		{
+			return a.x * b.x;
+		}
+	};
+
+	template<typename T, qualifier Q, bool Aligned>
+	struct compute_dot<vec<2, T, Q>, T, Aligned>
+	{
+		GLM_FUNC_QUALIFIER static T call(vec<2, T, Q> const& a, vec<2, T, Q> const& b)
+		{
+			vec<2, T, Q> tmp(a * b);
+			return tmp.x + tmp.y;
+		}
+	};
+
+	template<typename T, qualifier Q, bool Aligned>
+	struct compute_dot<vec<3, T, Q>, T, Aligned>
+	{
+		GLM_FUNC_QUALIFIER static T call(vec<3, T, Q> const& a, vec<3, T, Q> const& b)
+		{
+			vec<3, T, Q> tmp(a * b);
+			return tmp.x + tmp.y + tmp.z;
+		}
+	};
+
+	template<typename T, qualifier Q, bool Aligned>
+	struct compute_dot<vec<4, T, Q>, T, Aligned>
+	{
+		GLM_FUNC_QUALIFIER static T call(vec<4, T, Q> const& a, vec<4, T, Q> const& b)
+		{
+			vec<4, T, Q> tmp(a * b);
+			return (tmp.x + tmp.y) + (tmp.z + tmp.w);
+		}
+	};
+
+	template<typename T, qualifier Q, bool Aligned>
+	struct compute_cross
+	{
+		GLM_FUNC_QUALIFIER static vec<3, T, Q> call(vec<3, T, Q> const& x, vec<3, T, Q> const& y)
+		{
+			GLM_STATIC_ASSERT(std::numeric_limits<T>::is_iec559, "'cross' accepts only floating-point inputs");
+
+			return vec<3, T, Q>(
+				x.y * y.z - y.y * x.z,
+				x.z * y.x - y.z * x.x,
+				x.x * y.y - y.x * x.y);
+		}
+	};
+
+	template<length_t L, typename T, qualifier Q, bool Aligned>
+	struct compute_normalize
+	{
+		GLM_FUNC_QUALIFIER static vec<L, T, Q> call(vec<L, T, Q> const& v)
+		{
+			GLM_STATIC_ASSERT(std::numeric_limits<T>::is_iec559, "'normalize' accepts only floating-point inputs");
+
+			return v * inversesqrt(dot(v, v));
+		}
+	};
+
+	template<length_t L, typename T, qualifier Q, bool Aligned>
+	struct compute_faceforward
+	{
+		GLM_FUNC_QUALIFIER static vec<L, T, Q> call(vec<L, T, Q> const& N, vec<L, T, Q> const& I, vec<L, T, Q> const& Nref)
+		{
+			GLM_STATIC_ASSERT(std::numeric_limits<T>::is_iec559, "'normalize' accepts only floating-point inputs");
+
+			return dot(Nref, I) < static_cast<T>(0) ? N : -N;
+		}
+	};
+
+	template<length_t L, typename T, qualifier Q, bool Aligned>
+	struct compute_reflect
+	{
+		GLM_FUNC_QUALIFIER static vec<L, T, Q> call(vec<L, T, Q> const& I, vec<L, T, Q> const& N)
+		{
+			return I - N * dot(N, I) * static_cast<T>(2);
+		}
+	};
+
+	template<length_t L, typename T, qualifier Q, bool Aligned>
+	struct compute_refract
+	{
+		GLM_FUNC_QUALIFIER static vec<L, T, Q> call(vec<L, T, Q> const& I, vec<L, T, Q> const& N, T eta)
+		{
+			T const dotValue(dot(N, I));
+			T const k(static_cast<T>(1) - eta * eta * (static_cast<T>(1) - dotValue * dotValue));
+			vec<L, T, Q> const Result =
+                (k >= static_cast<T>(0)) ? (eta * I - (eta * dotValue + std::sqrt(k)) * N) : vec<L, T, Q>(0);
+			return Result;
+		}
+	};
+}//namespace detail
+
+	// length
+	template<typename genType>
+	GLM_FUNC_QUALIFIER genType length(genType x)
+	{
+		GLM_STATIC_ASSERT(std::numeric_limits<genType>::is_iec559, "'length' accepts only floating-point inputs");
+
+		return abs(x);
+	}
+
+	template<length_t L, typename T, qualifier Q>
+	GLM_FUNC_QUALIFIER T length(vec<L, T, Q> const& v)
+	{
+		GLM_STATIC_ASSERT(std::numeric_limits<T>::is_iec559, "'length' accepts only floating-point inputs");
+
+		return detail::compute_length<L, T, Q, detail::is_aligned<Q>::value>::call(v);
+	}
+
+	// distance
+	template<typename genType>
+	GLM_FUNC_QUALIFIER genType distance(genType const& p0, genType const& p1)
+	{
+		GLM_STATIC_ASSERT(std::numeric_limits<genType>::is_iec559, "'distance' accepts only floating-point inputs");
+
+		return length(p1 - p0);
+	}
+
+	template<length_t L, typename T, qualifier Q>
+	GLM_FUNC_QUALIFIER T distance(vec<L, T, Q> const& p0, vec<L, T, Q> const& p1)
+	{
+		return detail::compute_distance<L, T, Q, detail::is_aligned<Q>::value>::call(p0, p1);
+	}
+
+	// dot
+	template<typename T>
+	GLM_FUNC_QUALIFIER T dot(T x, T y)
+	{
+		GLM_STATIC_ASSERT(std::numeric_limits<T>::is_iec559, "'dot' accepts only floating-point inputs");
+		return x * y;
+	}
+
+	template<length_t L, typename T, qualifier Q>
+	GLM_FUNC_QUALIFIER T dot(vec<L, T, Q> const& x, vec<L, T, Q> const& y)
+	{
+		GLM_STATIC_ASSERT(std::numeric_limits<T>::is_iec559, "'dot' accepts only floating-point inputs");
+		return detail::compute_dot<vec<L, T, Q>, T, detail::is_aligned<Q>::value>::call(x, y);
+	}
+
+	// cross
+	template<typename T, qualifier Q>
+	GLM_FUNC_QUALIFIER vec<3, T, Q> cross(vec<3, T, Q> const& x, vec<3, T, Q> const& y)
+	{
+		return detail::compute_cross<T, Q, detail::is_aligned<Q>::value>::call(x, y);
+	}
+/*
+	// normalize
+	template<typename genType>
+	GLM_FUNC_QUALIFIER genType normalize(genType const& x)
+	{
+		GLM_STATIC_ASSERT(std::numeric_limits<genType>::is_iec559, "'normalize' accepts only floating-point inputs");
+
+		return x < genType(0) ? genType(-1) : genType(1);
+	}
+*/
+	template<length_t L, typename T, qualifier Q>
+	GLM_FUNC_QUALIFIER vec<L, T, Q> normalize(vec<L, T, Q> const& x)
+	{
+		GLM_STATIC_ASSERT(std::numeric_limits<T>::is_iec559, "'normalize' accepts only floating-point inputs");
+
+		return detail::compute_normalize<L, T, Q, detail::is_aligned<Q>::value>::call(x);
+	}
+
+	// faceforward
+	template<typename genType>
+	GLM_FUNC_QUALIFIER genType faceforward(genType const& N, genType const& I, genType const& Nref)
+	{
+		return dot(Nref, I) < static_cast<genType>(0) ? N : -N;
+	}
+
+	template<length_t L, typename T, qualifier Q>
+	GLM_FUNC_QUALIFIER vec<L, T, Q> faceforward(vec<L, T, Q> const& N, vec<L, T, Q> const& I, vec<L, T, Q> const& Nref)
+	{
+		return detail::compute_faceforward<L, T, Q, detail::is_aligned<Q>::value>::call(N, I, Nref);
+	}
+
+	// reflect
+	template<typename genType>
+	GLM_FUNC_QUALIFIER genType reflect(genType const& I, genType const& N)
+	{
+		return I - N * dot(N, I) * genType(2);
+	}
+
+	template<length_t L, typename T, qualifier Q>
+	GLM_FUNC_QUALIFIER vec<L, T, Q> reflect(vec<L, T, Q> const& I, vec<L, T, Q> const& N)
+	{
+		return detail::compute_reflect<L, T, Q, detail::is_aligned<Q>::value>::call(I, N);
+	}
+
+	// refract
+	template<typename genType>
+	GLM_FUNC_QUALIFIER genType refract(genType const& I, genType const& N, genType eta)
+	{
+		GLM_STATIC_ASSERT(std::numeric_limits<genType>::is_iec559, "'refract' accepts only floating-point inputs");
+		genType const dotValue(dot(N, I));
+		genType const k(static_cast<genType>(1) - eta * eta * (static_cast<genType>(1) - dotValue * dotValue));
+		return (eta * I - (eta * dotValue + sqrt(k)) * N) * static_cast<genType>(k >= static_cast<genType>(0));
+	}
+
+	template<length_t L, typename T, qualifier Q>
+	GLM_FUNC_QUALIFIER vec<L, T, Q> refract(vec<L, T, Q> const& I, vec<L, T, Q> const& N, T eta)
+	{
+		GLM_STATIC_ASSERT(std::numeric_limits<T>::is_iec559, "'refract' accepts only floating-point inputs");
+		return detail::compute_refract<L, T, Q, detail::is_aligned<Q>::value>::call(I, N, eta);
+	}
+}//namespace glm
+
+#if GLM_CONFIG_SIMD == GLM_ENABLE
+#	include "func_geometric_simd.inl"
+#endif