///////////////////////////////////////////////////////////////////////////////////
/// OpenGL Mathematics (glm.g-truc.net)
///
/// Copyright (c) 2005 - 2015 G-Truc Creation (www.g-truc.net)
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/// @ref gtx_transform2
/// @file glm/gtx/transform2.hpp
/// @date 2005-12-21 / 2011-06-07
/// @author Christophe Riccio
///
/// @see core (dependence)
/// @see gtx_transform (dependence)
///
/// @defgroup gtx_transform2 GLM_GTX_transform2
/// @ingroup gtx
///
/// @brief Add extra transformation matrices
///
/// <glm/gtx/transform2.hpp> need to be included to use these functionalities.
///////////////////////////////////////////////////////////////////////////////////

#pragma once

// Dependency:
#include "../glm.hpp"
#include "../gtx/transform.hpp"

#if(defined(GLM_MESSAGES) && !defined(GLM_EXT_INCLUDED))
#       pragma message("GLM: GLM_GTX_transform2 extension included")
#endif

namespace glm
{
        /// @addtogroup gtx_transform2
        /// @{

        //! Transforms a matrix with a shearing on X axis.
        //! From GLM_GTX_transform2 extension.
        template <typename T, precision P>
        GLM_FUNC_DECL tmat3x3<T, P> shearX2D(
                tmat3x3<T, P> const & m,
                T y);

        //! Transforms a matrix with a shearing on Y axis.
        //! From GLM_GTX_transform2 extension.
        template <typename T, precision P>
        GLM_FUNC_DECL tmat3x3<T, P> shearY2D(
                tmat3x3<T, P> const & m,
                T x);

        //! Transforms a matrix with a shearing on X axis
        //! From GLM_GTX_transform2 extension.
        template <typename T, precision P>
        GLM_FUNC_DECL tmat4x4<T, P> shearX3D(
                const tmat4x4<T, P> & m,
                T y,
                T z);

        //! Transforms a matrix with a shearing on Y axis.
        //! From GLM_GTX_transform2 extension.
        template <typename T, precision P>
        GLM_FUNC_DECL tmat4x4<T, P> shearY3D(
                const tmat4x4<T, P> & m,
                T x,
                T z);

        //! Transforms a matrix with a shearing on Z axis.
        //! From GLM_GTX_transform2 extension.
        template <typename T, precision P>
        GLM_FUNC_DECL tmat4x4<T, P> shearZ3D(
                const tmat4x4<T, P> & m,
                T x,
                T y);

        //template <typename T> GLM_FUNC_QUALIFIER tmat4x4<T, P> shear(const tmat4x4<T, P> & m, shearPlane, planePoint, angle)
        // Identity + tan(angle) * cross(Normal, OnPlaneVector)     0
        // - dot(PointOnPlane, normal) * OnPlaneVector              1

        // Reflect functions seem to don't work
        //template <typename T> tmat3x3<T, P> reflect2D(const tmat3x3<T, P> & m, const tvec3<T, P>& normal){return reflect2DGTX(m, normal);}                                                                    //!< \brief Build a reflection matrix (from GLM_GTX_transform2 extension)
        //template <typename T> tmat4x4<T, P> reflect3D(const tmat4x4<T, P> & m, const tvec3<T, P>& normal){return reflect3DGTX(m, normal);}                                                                    //!< \brief Build a reflection matrix (from GLM_GTX_transform2 extension)
               
        //! Build planar projection matrix along normal axis.
        //! From GLM_GTX_transform2 extension.
        template <typename T, precision P>
        GLM_FUNC_DECL tmat3x3<T, P> proj2D(
                const tmat3x3<T, P> & m,
                const tvec3<T, P>& normal);

        //! Build planar projection matrix along normal axis.
        //! From GLM_GTX_transform2 extension.
        template <typename T, precision P>
        GLM_FUNC_DECL tmat4x4<T, P> proj3D(
                const tmat4x4<T, P> & m,
                const tvec3<T, P>& normal);

        //! Build a scale bias matrix.
        //! From GLM_GTX_transform2 extension.
        template <typename valType, precision P>
        GLM_FUNC_DECL tmat4x4<valType, P> scaleBias(
                valType scale,
                valType bias);

        //! Build a scale bias matrix.
        //! From GLM_GTX_transform2 extension.
        template <typename valType, precision P>
        GLM_FUNC_DECL tmat4x4<valType, P> scaleBias(
                tmat4x4<valType, P> const & m,
                valType scale,
                valType bias);

        /// @}
}// namespace glm

#include "transform2.inl"