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Diffstat (limited to 'include/glm/gtx/hash.inl')
| -rw-r--r-- | include/glm/gtx/hash.inl | 214 |
1 files changed, 214 insertions, 0 deletions
diff --git a/include/glm/gtx/hash.inl b/include/glm/gtx/hash.inl new file mode 100644 index 0000000..8aa299e --- /dev/null +++ b/include/glm/gtx/hash.inl @@ -0,0 +1,214 @@ +/////////////////////////////////////////////////////////////////////////////////// +/// OpenGL Mathematics (glm.g-truc.net) +/// +/// Copyright (c) 2005 - 2015 G-Truc Creation (www.g-truc.net) +/// Permission is hereby granted, free of charge, to any person obtaining a copy +/// of this software and associated documentation files (the "Software"), to deal +/// in the Software without restriction, including without limitation the rights +/// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell +/// copies of the Software, and to permit persons to whom the Software is +/// furnished to do so, subject to the following conditions: +/// +/// The above copyright notice and this permission notice shall be included in +/// all copies or substantial portions of the Software. +/// +/// Restrictions: +/// By making use of the Software for military purposes, you choose to make +/// a Bunny unhappy. +/// +/// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR +/// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, +/// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE +/// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER +/// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, +/// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN +/// THE SOFTWARE. +/// +/// @ref gtx_hash +/// @file glm/gtx/hash.inl +/// @date 2015-03-07 / 2015-03-07 +/// @author Christophe Riccio +/// +/// @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 these functionalities. +/////////////////////////////////////////////////////////////////////////////////// + +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::precision P> + GLM_FUNC_QUALIFIER size_t hash<glm::tvec1<T, P>>::operator()(glm::tvec1<T, P> const & v) const + { + hash<T> hasher; + return hasher(v.x); + } + + template <typename T, glm::precision P> + GLM_FUNC_QUALIFIER size_t hash<glm::tvec2<T, P>>::operator()(glm::tvec2<T, P> 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::precision P> + GLM_FUNC_QUALIFIER size_t hash<glm::tvec3<T, P>>::operator()(glm::tvec3<T, P> 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::precision P> + GLM_FUNC_QUALIFIER size_t hash<glm::tvec4<T, P>>::operator()(glm::tvec4<T, P> 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::precision P> + GLM_FUNC_QUALIFIER size_t hash<glm::tquat<T, P>>::operator()(glm::tquat<T,P> 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::precision P> + GLM_FUNC_QUALIFIER size_t hash<glm::tdualquat<T, P>>::operator()(glm::tdualquat<T, P> const & q) const + { + size_t seed = 0; + hash<glm::tquat<T, P>> hasher; + glm::detail::hash_combine(seed, hasher(q.real)); + glm::detail::hash_combine(seed, hasher(q.dual)); + return seed; + } + + template <typename T, glm::precision P> + GLM_FUNC_QUALIFIER size_t hash<glm::tmat2x2<T, P>>::operator()(glm::tmat2x2<T, P> const & m) const + { + size_t seed = 0; + hash<glm::tvec2<T, P>> hasher; + glm::detail::hash_combine(seed, hasher(m[0])); + glm::detail::hash_combine(seed, hasher(m[1])); + return seed; + } + + template <typename T, glm::precision P> + GLM_FUNC_QUALIFIER size_t hash<glm::tmat2x3<T, P>>::operator()(glm::tmat2x3<T, P> const & m) const + { + size_t seed = 0; + hash<glm::tvec3<T, P>> hasher; + glm::detail::hash_combine(seed, hasher(m[0])); + glm::detail::hash_combine(seed, hasher(m[1])); + return seed; + } + + template <typename T, glm::precision P> + GLM_FUNC_QUALIFIER size_t hash<glm::tmat2x4<T, P>>::operator()(glm::tmat2x4<T, P> const & m) const + { + size_t seed = 0; + hash<glm::tvec4<T, P>> hasher; + glm::detail::hash_combine(seed, hasher(m[0])); + glm::detail::hash_combine(seed, hasher(m[1])); + return seed; + } + + template <typename T, glm::precision P> + GLM_FUNC_QUALIFIER size_t hash<glm::tmat3x2<T, P>>::operator()(glm::tmat3x2<T, P> const & m) const + { + size_t seed = 0; + hash<glm::tvec2<T, P>> 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::precision P> + GLM_FUNC_QUALIFIER size_t hash<glm::tmat3x3<T, P>>::operator()(glm::tmat3x3<T, P> const & m) const + { + size_t seed = 0; + hash<glm::tvec3<T, P>> 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::precision P> + GLM_FUNC_QUALIFIER size_t hash<glm::tmat3x4<T, P>>::operator()(glm::tmat3x4<T, P> const & m) const + { + size_t seed = 0; + hash<glm::tvec4<T, P>> 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::precision P> + GLM_FUNC_QUALIFIER size_t hash<glm::tmat4x2<T,P>>::operator()(glm::tmat4x2<T,P> const & m) const + { + size_t seed = 0; + hash<glm::tvec2<T, P>> 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::precision P> + GLM_FUNC_QUALIFIER size_t hash<glm::tmat4x3<T,P>>::operator()(glm::tmat4x3<T,P> const & m) const + { + size_t seed = 0; + hash<glm::tvec3<T, P>> 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::precision P> + GLM_FUNC_QUALIFIER size_t hash<glm::tmat4x4<T,P>>::operator()(glm::tmat4x4<T, P> const & m) const + { + size_t seed = 0; + hash<glm::tvec4<T, P>> 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; + } +} |