From a8b3118e8305fd1c668ea25e07157b625c9747ff Mon Sep 17 00:00:00 2001
From: Joursoir <chat@joursoir.net>
Date: Sat, 10 Apr 2021 17:29:02 +0000
Subject: add glm headers

---
 src/include/glm/gtx/hash.inl | 184 +++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 184 insertions(+)
 create mode 100644 src/include/glm/gtx/hash.inl

(limited to 'src/include/glm/gtx/hash.inl')

diff --git a/src/include/glm/gtx/hash.inl b/src/include/glm/gtx/hash.inl
new file mode 100644
index 0000000..caad49a
--- /dev/null
+++ b/src/include/glm/gtx/hash.inl
@@ -0,0 +1,184 @@
+/// @ref gtx_hash
+///
+/// @see core (dependence)
+///
+/// @defgroup gtx_hash GLM_GTX_hash
+/// @ingroup gtx
+///
+/// @brief Add std::hash support for glm types
+///
+/// <glm/gtx/hash.inl> need to be included to use the features of this extension.
+
+namespace glm {
+namespace detail
+{
+	GLM_INLINE void hash_combine(size_t &seed, size_t hash)
+	{
+		hash += 0x9e3779b9 + (seed << 6) + (seed >> 2);
+		seed ^= hash;
+	}
+}}
+
+namespace std
+{
+	template<typename T, glm::qualifier Q>
+	GLM_FUNC_QUALIFIER size_t hash<glm::vec<1, T, Q>>::operator()(glm::vec<1, T, Q> const& v) const
+	{
+		hash<T> hasher;
+		return hasher(v.x);
+	}
+
+	template<typename T, glm::qualifier Q>
+	GLM_FUNC_QUALIFIER size_t hash<glm::vec<2, T, Q>>::operator()(glm::vec<2, T, Q> const& v) const
+	{
+		size_t seed = 0;
+		hash<T> hasher;
+		glm::detail::hash_combine(seed, hasher(v.x));
+		glm::detail::hash_combine(seed, hasher(v.y));
+		return seed;
+	}
+
+	template<typename T, glm::qualifier Q>
+	GLM_FUNC_QUALIFIER size_t hash<glm::vec<3, T, Q>>::operator()(glm::vec<3, T, Q> const& v) const
+	{
+		size_t seed = 0;
+		hash<T> hasher;
+		glm::detail::hash_combine(seed, hasher(v.x));
+		glm::detail::hash_combine(seed, hasher(v.y));
+		glm::detail::hash_combine(seed, hasher(v.z));
+		return seed;
+	}
+
+	template<typename T, glm::qualifier Q>
+	GLM_FUNC_QUALIFIER size_t hash<glm::vec<4, T, Q>>::operator()(glm::vec<4, T, Q> const& v) const
+	{
+		size_t seed = 0;
+		hash<T> hasher;
+		glm::detail::hash_combine(seed, hasher(v.x));
+		glm::detail::hash_combine(seed, hasher(v.y));
+		glm::detail::hash_combine(seed, hasher(v.z));
+		glm::detail::hash_combine(seed, hasher(v.w));
+		return seed;
+	}
+
+	template<typename T, glm::qualifier Q>
+	GLM_FUNC_QUALIFIER size_t hash<glm::qua<T, Q>>::operator()(glm::qua<T,Q> const& q) const
+	{
+		size_t seed = 0;
+		hash<T> hasher;
+		glm::detail::hash_combine(seed, hasher(q.x));
+		glm::detail::hash_combine(seed, hasher(q.y));
+		glm::detail::hash_combine(seed, hasher(q.z));
+		glm::detail::hash_combine(seed, hasher(q.w));
+		return seed;
+	}
+
+	template<typename T, glm::qualifier Q>
+	GLM_FUNC_QUALIFIER size_t hash<glm::tdualquat<T, Q>>::operator()(glm::tdualquat<T, Q> const& q) const
+	{
+		size_t seed = 0;
+		hash<glm::qua<T, Q>> hasher;
+		glm::detail::hash_combine(seed, hasher(q.real));
+		glm::detail::hash_combine(seed, hasher(q.dual));
+		return seed;
+	}
+
+	template<typename T, glm::qualifier Q>
+	GLM_FUNC_QUALIFIER size_t hash<glm::mat<2, 2, T, Q>>::operator()(glm::mat<2, 2, T, Q> const& m) const
+	{
+		size_t seed = 0;
+		hash<glm::vec<2, T, Q>> hasher;
+		glm::detail::hash_combine(seed, hasher(m[0]));
+		glm::detail::hash_combine(seed, hasher(m[1]));
+		return seed;
+	}
+
+	template<typename T, glm::qualifier Q>
+	GLM_FUNC_QUALIFIER size_t hash<glm::mat<2, 3, T, Q>>::operator()(glm::mat<2, 3, T, Q> const& m) const
+	{
+		size_t seed = 0;
+		hash<glm::vec<3, T, Q>> hasher;
+		glm::detail::hash_combine(seed, hasher(m[0]));
+		glm::detail::hash_combine(seed, hasher(m[1]));
+		return seed;
+	}
+
+	template<typename T, glm::qualifier Q>
+	GLM_FUNC_QUALIFIER size_t hash<glm::mat<2, 4, T, Q>>::operator()(glm::mat<2, 4, T, Q> const& m) const
+	{
+		size_t seed = 0;
+		hash<glm::vec<4, T, Q>> hasher;
+		glm::detail::hash_combine(seed, hasher(m[0]));
+		glm::detail::hash_combine(seed, hasher(m[1]));
+		return seed;
+	}
+
+	template<typename T, glm::qualifier Q>
+	GLM_FUNC_QUALIFIER size_t hash<glm::mat<3, 2, T, Q>>::operator()(glm::mat<3, 2, T, Q> const& m) const
+	{
+		size_t seed = 0;
+		hash<glm::vec<2, T, Q>> hasher;
+		glm::detail::hash_combine(seed, hasher(m[0]));
+		glm::detail::hash_combine(seed, hasher(m[1]));
+		glm::detail::hash_combine(seed, hasher(m[2]));
+		return seed;
+	}
+
+	template<typename T, glm::qualifier Q>
+	GLM_FUNC_QUALIFIER size_t hash<glm::mat<3, 3, T, Q>>::operator()(glm::mat<3, 3, T, Q> const& m) const
+	{
+		size_t seed = 0;
+		hash<glm::vec<3, T, Q>> hasher;
+		glm::detail::hash_combine(seed, hasher(m[0]));
+		glm::detail::hash_combine(seed, hasher(m[1]));
+		glm::detail::hash_combine(seed, hasher(m[2]));
+		return seed;
+	}
+
+	template<typename T, glm::qualifier Q>
+	GLM_FUNC_QUALIFIER size_t hash<glm::mat<3, 4, T, Q>>::operator()(glm::mat<3, 4, T, Q> const& m) const
+	{
+		size_t seed = 0;
+		hash<glm::vec<4, T, Q>> hasher;
+		glm::detail::hash_combine(seed, hasher(m[0]));
+		glm::detail::hash_combine(seed, hasher(m[1]));
+		glm::detail::hash_combine(seed, hasher(m[2]));
+		return seed;
+	}
+
+	template<typename T, glm::qualifier Q>
+	GLM_FUNC_QUALIFIER size_t hash<glm::mat<4, 2, T,Q>>::operator()(glm::mat<4, 2, T,Q> const& m) const
+	{
+		size_t seed = 0;
+		hash<glm::vec<2, T, Q>> hasher;
+		glm::detail::hash_combine(seed, hasher(m[0]));
+		glm::detail::hash_combine(seed, hasher(m[1]));
+		glm::detail::hash_combine(seed, hasher(m[2]));
+		glm::detail::hash_combine(seed, hasher(m[3]));
+		return seed;
+	}
+
+	template<typename T, glm::qualifier Q>
+	GLM_FUNC_QUALIFIER size_t hash<glm::mat<4, 3, T,Q>>::operator()(glm::mat<4, 3, T,Q> const& m) const
+	{
+		size_t seed = 0;
+		hash<glm::vec<3, T, Q>> hasher;
+		glm::detail::hash_combine(seed, hasher(m[0]));
+		glm::detail::hash_combine(seed, hasher(m[1]));
+		glm::detail::hash_combine(seed, hasher(m[2]));
+		glm::detail::hash_combine(seed, hasher(m[3]));
+		return seed;
+	}
+
+	template<typename T, glm::qualifier Q>
+	GLM_FUNC_QUALIFIER size_t hash<glm::mat<4, 4, T,Q>>::operator()(glm::mat<4, 4, T, Q> const& m) const
+	{
+		size_t seed = 0;
+		hash<glm::vec<4, T, Q>> hasher;
+		glm::detail::hash_combine(seed, hasher(m[0]));
+		glm::detail::hash_combine(seed, hasher(m[1]));
+		glm::detail::hash_combine(seed, hasher(m[2]));
+		glm::detail::hash_combine(seed, hasher(m[3]));
+		return seed;
+	}
+}
-- 
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