150 lines
4.2 KiB
C++
150 lines
4.2 KiB
C++
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/// @ref gtc_type_ptr
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/// @file glm/gtc/type_ptr.hpp
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///
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/// @see core (dependence)
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/// @see gtc_half_float (dependence)
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/// @see gtc_quaternion (dependence)
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///
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/// @defgroup gtc_type_ptr GLM_GTC_type_ptr
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/// @ingroup gtc
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///
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/// @brief Handles the interaction between pointers and vector, matrix types.
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///
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/// This extension defines an overloaded function, glm::value_ptr, which
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/// takes any of the \ref core_template "core template types". It returns
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/// a pointer to the memory layout of the object. Matrix types store their values
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/// in column-major order.
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///
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/// This is useful for uploading data to matrices or copying data to buffer objects.
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///
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/// Example:
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/// @code
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/// #include <glm/glm.hpp>
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/// #include <glm/gtc/type_ptr.hpp>
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///
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/// glm::vec3 aVector(3);
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/// glm::mat4 someMatrix(1.0);
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///
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/// glUniform3fv(uniformLoc, 1, glm::value_ptr(aVector));
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/// glUniformMatrix4fv(uniformMatrixLoc, 1, GL_FALSE, glm::value_ptr(someMatrix));
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/// @endcode
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///
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/// <glm/gtc/type_ptr.hpp> need to be included to use these functionalities.
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#pragma once
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// Dependency:
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#include "../gtc/quaternion.hpp"
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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 "../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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#include <cstring>
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#if GLM_MESSAGES == GLM_MESSAGES_ENABLED && !defined(GLM_EXT_INCLUDED)
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# pragma message("GLM: GLM_GTC_type_ptr extension included")
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#endif
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namespace glm
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{
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/// @addtogroup gtc_type_ptr
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/// @{
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/// Return the constant address to the data of the input parameter.
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/// @see gtc_type_ptr
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template<typename genType>
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GLM_FUNC_DECL typename genType::value_type const * value_ptr(genType const & vec);
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/// Build a vector from a pointer.
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/// @see gtc_type_ptr
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template<typename T>
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GLM_FUNC_DECL tvec2<T, defaultp> make_vec2(T const * const ptr);
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/// Build a vector from a pointer.
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/// @see gtc_type_ptr
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template<typename T>
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GLM_FUNC_DECL tvec3<T, defaultp> make_vec3(T const * const ptr);
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/// Build a vector from a pointer.
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/// @see gtc_type_ptr
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template<typename T>
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GLM_FUNC_DECL tvec4<T, defaultp> make_vec4(T const * const ptr);
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/// Build a matrix from a pointer.
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/// @see gtc_type_ptr
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template<typename T>
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GLM_FUNC_DECL tmat2x2<T, defaultp> make_mat2x2(T const * const ptr);
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/// Build a matrix from a pointer.
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/// @see gtc_type_ptr
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template<typename T>
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GLM_FUNC_DECL tmat2x3<T, defaultp> make_mat2x3(T const * const ptr);
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/// Build a matrix from a pointer.
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/// @see gtc_type_ptr
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template<typename T>
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GLM_FUNC_DECL tmat2x4<T, defaultp> make_mat2x4(T const * const ptr);
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/// Build a matrix from a pointer.
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/// @see gtc_type_ptr
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template<typename T>
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GLM_FUNC_DECL tmat3x2<T, defaultp> make_mat3x2(T const * const ptr);
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/// Build a matrix from a pointer.
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/// @see gtc_type_ptr
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template<typename T>
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GLM_FUNC_DECL tmat3x3<T, defaultp> make_mat3x3(T const * const ptr);
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/// Build a matrix from a pointer.
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/// @see gtc_type_ptr
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template<typename T>
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GLM_FUNC_DECL tmat3x4<T, defaultp> make_mat3x4(T const * const ptr);
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/// Build a matrix from a pointer.
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/// @see gtc_type_ptr
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template<typename T>
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GLM_FUNC_DECL tmat4x2<T, defaultp> make_mat4x2(T const * const ptr);
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/// Build a matrix from a pointer.
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/// @see gtc_type_ptr
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template<typename T>
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GLM_FUNC_DECL tmat4x3<T, defaultp> make_mat4x3(T const * const ptr);
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/// Build a matrix from a pointer.
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/// @see gtc_type_ptr
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template<typename T>
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GLM_FUNC_DECL tmat4x4<T, defaultp> make_mat4x4(T const * const ptr);
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/// Build a matrix from a pointer.
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/// @see gtc_type_ptr
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template<typename T>
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GLM_FUNC_DECL tmat2x2<T, defaultp> make_mat2(T const * const ptr);
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/// Build a matrix from a pointer.
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/// @see gtc_type_ptr
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template<typename T>
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GLM_FUNC_DECL tmat3x3<T, defaultp> make_mat3(T const * const ptr);
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/// Build a matrix from a pointer.
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/// @see gtc_type_ptr
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template<typename T>
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GLM_FUNC_DECL tmat4x4<T, defaultp> make_mat4(T const * const ptr);
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/// Build a quaternion from a pointer.
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/// @see gtc_type_ptr
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template<typename T>
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GLM_FUNC_DECL tquat<T, defaultp> make_quat(T const * const ptr);
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/// @}
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}//namespace glm
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#include "type_ptr.inl"
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