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Merge pull request #320 from plasmacel/master
Add std::hash support for glm types (with precision support) #320
This commit is contained in:
Christophe Riccio
commit
61e9b88db0
152
glm/gtx/hash.hpp
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152
glm/gtx/hash.hpp
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///////////////////////////////////////////////////////////////////////////////////
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/// OpenGL Mathematics (glm.g-truc.net)
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///
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/// Copyright (c) 2005 - 2015 G-Truc Creation (www.g-truc.net)
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/// Permission is hereby granted, free of charge, to any person obtaining a copy
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/// of this software and associated documentation files (the "Software"), to deal
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/// in the Software without restriction, including without limitation the rights
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/// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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/// copies of the Software, and to permit persons to whom the Software is
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/// furnished to do so, subject to the following conditions:
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///
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/// The above copyright notice and this permission notice shall be included in
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/// all copies or substantial portions of the Software.
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///
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/// Restrictions:
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/// By making use of the Software for military purposes, you choose to make
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/// a Bunny unhappy.
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///
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/// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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/// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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/// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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/// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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/// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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/// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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/// THE SOFTWARE.
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///
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/// @ref gtx_hash
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/// @file glm/gtx/hash.hpp
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/// @date 2015-03-07 / 2015-03-07
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/// @author Christophe Riccio
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///
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/// @see core (dependence)
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///
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/// @defgroup gtx_hash GLM_GTX_hash
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/// @ingroup gtx
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///
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/// @brief Add std::hash support for glm types
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///
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/// <glm/gtx/hash.hpp> need to be included to use these functionalities.
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///////////////////////////////////////////////////////////////////////////////////
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#pragma once
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#include <functional>
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#include "../vec2.hpp"
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#include "../vec3.hpp"
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#include "../vec4.hpp"
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#include "../gtc/vec1.hpp"
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#include "../gtc/quaternion.hpp"
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#include "../mat2x2.hpp"
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#include "../mat2x3.hpp"
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#include "../mat2x4.hpp"
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#include "../mat3x2.hpp"
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#include "../mat3x3.hpp"
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#include "../mat3x4.hpp"
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#include "../mat4x2.hpp"
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#include "../mat4x3.hpp"
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#include "../mat4x4.hpp"
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namespace std
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{
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template <typename T, glm::precision P>
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struct hash<glm::tvec1<T,P>>
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{
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GLM_FUNC_DECL size_t operator()(const glm::tvec1<T,P> &v) const;
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};
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template <typename T, glm::precision P>
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struct hash<glm::tvec2<T,P>>
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{
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GLM_FUNC_DECL size_t operator()(const glm::tvec2<T,P> &v) const;
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};
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template <typename T, glm::precision P>
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struct hash<glm::tvec3<T,P>>
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{
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GLM_FUNC_DECL size_t operator()(const glm::tvec3<T,P> &v) const;
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};
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template <typename T, glm::precision P>
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struct hash<glm::tvec4<T,P>>
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{
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GLM_FUNC_DECL size_t operator()(const glm::tvec4<T,P> &v) const;
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};
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template <typename T, glm::precision P>
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struct hash<glm::tquat<T,P>>
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{
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GLM_FUNC_DECL size_t operator()(const glm::tquat<T,P> &q) const;
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};
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template <typename T, glm::precision P>
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struct hash<glm::tmat2x2<T,P>>
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{
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GLM_FUNC_DECL size_t operator()(const glm::tmat2x2<T,P> &m) const;
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};
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template <typename T, glm::precision P>
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struct hash<glm::tmat2x3<T,P>>
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{
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GLM_FUNC_DECL size_t operator()(const glm::tmat2x3<T,P> &m) const;
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};
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template <typename T, glm::precision P>
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struct hash<glm::tmat2x4<T,P>>
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{
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GLM_FUNC_DECL size_t operator()(const glm::tmat2x4<T,P> &m) const;
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};
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template <typename T, glm::precision P>
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struct hash<glm::tmat3x2<T,P>>
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{
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GLM_FUNC_DECL size_t operator()(const glm::tmat3x2<T,P> &m) const;
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};
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template <typename T, glm::precision P>
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struct hash<glm::tmat3x3<T,P>>
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{
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GLM_FUNC_DECL size_t operator()(const glm::tmat3x3<T,P> &m) const;
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};
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template <typename T, glm::precision P>
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struct hash<glm::tmat3x4<T,P>>
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{
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GLM_FUNC_DECL size_t operator()(const glm::tmat3x4<T,P> &m) const;
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};
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template <typename T, glm::precision P>
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struct hash<glm::tmat4x2<T,P>>
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{
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GLM_FUNC_DECL size_t operator()(const glm::tmat4x2<T,P> &m) const;
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};
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template <typename T, glm::precision P>
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struct hash<glm::tmat4x3<T,P>>
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{
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GLM_FUNC_DECL size_t operator()(const glm::tmat4x3<T,P> &m) const;
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};
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template <typename T, glm::precision P>
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struct hash<glm::tmat4x4<T,P>>
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{
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GLM_FUNC_DECL size_t operator()(const glm::tmat4x4<T,P> &m) const;
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};
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} // namespace std
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#include "hash.inl"
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218
glm/gtx/hash.inl
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218
glm/gtx/hash.inl
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@ -0,0 +1,218 @@
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///////////////////////////////////////////////////////////////////////////////////
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/// OpenGL Mathematics (glm.g-truc.net)
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///
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/// Copyright (c) 2005 - 2015 G-Truc Creation (www.g-truc.net)
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/// Permission is hereby granted, free of charge, to any person obtaining a copy
|
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/// of this software and associated documentation files (the "Software"), to deal
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/// in the Software without restriction, including without limitation the rights
|
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/// 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:
|
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///
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/// The above copyright notice and this permission notice shall be included in
|
||||
/// all copies or substantial portions of the Software.
|
||||
///
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/// Restrictions:
|
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/// By making use of the Software for military purposes, you choose to make
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/// a Bunny unhappy.
|
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///
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/// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
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/// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
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/// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
|
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/// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
|
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/// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
|
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/// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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/// THE SOFTWARE.
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///
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/// @ref gtx_hash
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/// @file glm/gtx/hash.inl
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/// @date 2015-03-07 / 2015-03-07
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/// @author Christophe Riccio
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///
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/// @see core (dependence)
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///
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/// @defgroup gtx_hash GLM_GTX_hash
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/// @ingroup gtx
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///
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/// @brief Add std::hash support for glm types
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///
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/// <glm/gtx/hash.inl> need to be included to use these functionalities.
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///////////////////////////////////////////////////////////////////////////////////
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namespace glm {
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namespace detail
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{
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GLM_INLINE void hash_combine(size_t &seed, size_t hash)
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{
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hash += 0x9e3779b9 + (seed << 6) + (seed >> 2);
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seed ^= hash;
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}
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}}
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namespace std
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{
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template <typename T, glm::precision P>
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GLM_FUNC_QUALIFIER size_t
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hash<glm::tvec1<T,P>>::operator()(const glm::tvec1<T,P> &v) const
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{
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hash<T> hasher;
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return hasher(v.x);
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}
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template <typename T, glm::precision P>
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GLM_FUNC_QUALIFIER size_t
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hash<glm::tvec2<T,P>>::operator()(const glm::tvec2<T,P> &v) const
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{
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size_t seed = 0;
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hash<T> hasher;
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glm::detail::hash_combine(seed, hasher(v.x));
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glm::detail::hash_combine(seed, hasher(v.y));
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return seed;
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}
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template <typename T, glm::precision P>
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GLM_FUNC_QUALIFIER size_t
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hash<glm::tvec3<T,P>>::operator()(const glm::tvec3<T,P> &v) const
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{
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size_t seed = 0;
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hash<T> hasher;
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glm::detail::hash_combine(seed, hasher(v.x));
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glm::detail::hash_combine(seed, hasher(v.y));
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glm::detail::hash_combine(seed, hasher(v.z));
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return seed;
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}
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template <typename T, glm::precision P>
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GLM_FUNC_QUALIFIER size_t
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hash<glm::tvec4<T,P>>::operator()(const glm::tvec4<T,P> &v) const
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{
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size_t seed = 0;
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hash<T> hasher;
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glm::detail::hash_combine(seed, hasher(v.x));
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glm::detail::hash_combine(seed, hasher(v.y));
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glm::detail::hash_combine(seed, hasher(v.z));
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glm::detail::hash_combine(seed, hasher(v.w));
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return seed;
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}
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template <typename T, glm::precision P>
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GLM_FUNC_QUALIFIER size_t
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hash<glm::tquat<T,P>>::operator()(const glm::tquat<T,P> &q) const
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{
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size_t seed = 0;
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hash<T> hasher;
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glm::detail::hash_combine(seed, hasher(q.x));
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glm::detail::hash_combine(seed, hasher(q.y));
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glm::detail::hash_combine(seed, hasher(q.z));
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glm::detail::hash_combine(seed, hasher(q.w));
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return seed;
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}
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template <typename T, glm::precision P>
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GLM_FUNC_QUALIFIER size_t
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hash<glm::tmat2x2<T,P>>::operator()(const glm::tmat2x2<T,P> &m) const
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{
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size_t seed = 0;
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hash<glm::tvec2<T,P>> hasher;
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glm::detail::hash_combine(seed, hasher(m[0]));
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glm::detail::hash_combine(seed, hasher(m[1]));
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return seed;
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}
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template <typename T, glm::precision P>
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GLM_FUNC_QUALIFIER size_t
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hash<glm::tmat2x3<T,P>>::operator()(const glm::tmat2x3<T,P> &m) const
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{
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size_t seed = 0;
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hash<glm::tvec3<T,P>> hasher;
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glm::detail::hash_combine(seed, hasher(m[0]));
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glm::detail::hash_combine(seed, hasher(m[1]));
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return seed;
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}
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template <typename T, glm::precision P>
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GLM_FUNC_QUALIFIER size_t
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hash<glm::tmat2x4<T,P>>::operator()(const glm::tmat2x4<T,P> &m) const
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{
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size_t seed = 0;
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hash<glm::tvec4<T,P>> hasher;
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glm::detail::hash_combine(seed, hasher(m[0]));
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glm::detail::hash_combine(seed, hasher(m[1]));
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return seed;
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}
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template <typename T, glm::precision P>
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GLM_FUNC_QUALIFIER size_t
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hash<glm::tmat3x2<T,P>>::operator()(const glm::tmat3x2<T,P> &m) const
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{
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size_t seed = 0;
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hash<glm::tvec2<T,P>> hasher;
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glm::detail::hash_combine(seed, hasher(m[0]));
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glm::detail::hash_combine(seed, hasher(m[1]));
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glm::detail::hash_combine(seed, hasher(m[2]));
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return seed;
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}
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template <typename T, glm::precision P>
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GLM_FUNC_QUALIFIER size_t
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hash<glm::tmat3x3<T,P>>::operator()(const glm::tmat3x3<T,P> &m) const
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{
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size_t seed = 0;
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hash<glm::tvec3<T,P>> hasher;
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glm::detail::hash_combine(seed, hasher(m[0]));
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glm::detail::hash_combine(seed, hasher(m[1]));
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glm::detail::hash_combine(seed, hasher(m[2]));
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return seed;
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}
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template <typename T, glm::precision P>
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GLM_FUNC_QUALIFIER size_t
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hash<glm::tmat3x4<T,P>>::operator()(const glm::tmat3x4<T,P> &m) const
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{
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size_t seed = 0;
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hash<glm::tvec4<T,P>> hasher;
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glm::detail::hash_combine(seed, hasher(m[0]));
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glm::detail::hash_combine(seed, hasher(m[1]));
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glm::detail::hash_combine(seed, hasher(m[2]));
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return seed;
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}
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template <typename T, glm::precision P>
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GLM_FUNC_QUALIFIER size_t
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hash<glm::tmat4x2<T,P>>::operator()(const glm::tmat4x2<T,P> &m) const
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{
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size_t seed = 0;
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hash<glm::tvec2<T,P>> hasher;
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glm::detail::hash_combine(seed, hasher(m[0]));
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glm::detail::hash_combine(seed, hasher(m[1]));
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glm::detail::hash_combine(seed, hasher(m[2]));
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glm::detail::hash_combine(seed, hasher(m[3]));
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return seed;
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}
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template <typename T, glm::precision P>
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GLM_FUNC_QUALIFIER size_t
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hash<glm::tmat4x3<T,P>>::operator()(const glm::tmat4x3<T,P> &m) const
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{
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size_t seed = 0;
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hash<glm::tvec3<T,P>> hasher;
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glm::detail::hash_combine(seed, hasher(m[0]));
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glm::detail::hash_combine(seed, hasher(m[1]));
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glm::detail::hash_combine(seed, hasher(m[2]));
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glm::detail::hash_combine(seed, hasher(m[3]));
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return seed;
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}
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template <typename T, glm::precision P>
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GLM_FUNC_QUALIFIER size_t
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hash<glm::tmat4x4<T,P>>::operator()(const glm::tmat4x4<T,P> &m) const
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{
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size_t seed = 0;
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hash<glm::tvec4<T,P>> hasher;
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glm::detail::hash_combine(seed, hasher(m[0]));
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glm::detail::hash_combine(seed, hasher(m[1]));
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glm::detail::hash_combine(seed, hasher(m[2]));
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glm::detail::hash_combine(seed, hasher(m[3]));
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return seed;
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}
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}
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