cs237-mat4x4.hxx

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/*
 * COPYRIGHT (c) 2013 John Reppy (http://cs.uchicago.edu/~jhr)
 * All rights reserved.
 */

#ifndef _CS237_MAT4X4_HXX_
#define _CS237_MAT4X4_HXX_

#ifndef _CS237_HXX_
#error "c237-mat4x4.hxx should not be included directly"
#endif

namespace cs237 {

    namespace __detail {

    template <typename T>
    struct mat4x4 {
        vec4<T> cv[4];  // column vectors

        mat4x4 () {}
        mat4x4 (mat4x4 const &m);
        explicit mat4x4 (
        T m00, T m10, T m20, T m30, // first column
        T m01, T m11, T m21, T m31, // second column
        T m02, T m12, T m22, T m32, // third column
        T m03, T m13, T m23, T m33);    // fourth column
        explicit mat4x4 (vec4<T> const &c0, vec4<T> const &c1, vec4<T> const &c2, vec4<T> const &c3);
        explicit mat4x4 (T const &x);

        vec4<T> & operator[] (unsigned int const &i);
        vec4<T> const & operator[] (unsigned int const &i) const;

        mat4x4 & operator= (mat4x4 const &mm);

        mat4x4 & operator+= (T const &s);
        mat4x4 & operator+= (mat4x4 const &mm);

        mat4x4 & operator-= (T const &s);
        mat4x4 & operator-= (mat4x4 const &mm);

        mat4x4 & operator*= (T const &s);
        mat4x4 & operator*= (mat4x4 const &mm);

        mat4x4 inverse() const;

        mat4x4 transpose() const;

        T determinant() const;

        mat3x3<T> normalMatrix() const;
    };

    template <typename T>
    std::ostream& operator<< (std::ostream& s, mat4x4<T> const &m);

    } /* _namespace __detail */

    typedef __detail::mat4x4<float> mat4x4f;
    typedef __detail::mat4x4<double> mat4x4d;
    typedef mat4x4f mat4f;
    typedef mat4x4d mat4d;

} /* namespace cs237 */

#endif /* !_CS237_MAT4X4_HXX_ */