91 lines
2.7 KiB
C++
91 lines
2.7 KiB
C++
/*
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* This file is part of libgim.
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*
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* libgim is free software: you can redistribute it and/or modify it under the
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* terms of the GNU General Public License as published by the Free Software
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* Foundation, either version 3 of the License, or (at your option) any later
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* version.
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*
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* libgim is distributed in the hope that it will be useful, but WITHOUT ANY
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* WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
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* FOR A PARTICULAR PURPOSE. See the GNU General Public License for more
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* details.
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*
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* You should have received a copy of the GNU General Public License
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* along with libgim. If not, see <http://www.gnu.org/licenses/>.
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*
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* Copyright 2011-2014 Danny Robson <danny@nerdcruft.net>
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*/
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#ifndef __UTIL_MATRIX_HPP
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#define __UTIL_MATRIX_HPP
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#include "point.hpp"
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#include <iostream>
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namespace util {
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template <typename T>
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struct matrix {
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T values[4][4];
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static const size_t rows = 4;
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static const size_t cols = 4;
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matrix& transpose (void);
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matrix transposed (void) const;
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matrix<T> inverse (void) const;
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matrix<T>& invert (void);
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matrix<T> inverse_affine (void) const;
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matrix<T>& invert_affine (void);
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T det (void) const;
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matrix<T> operator* (const matrix<T>&) const;
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matrix<T>& operator*=(const matrix<T>&);
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vector<4,T> operator* (const vector<4,T>&) const;
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point<4,T> operator* (const point<4,T> &) const;
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matrix<T> operator* (T) const;
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matrix<T>& operator*= (T);
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matrix<T> operator/ (T) const;
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matrix<T>& operator/= (T);
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bool operator== (const matrix<T>&) const;
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bool is_affine (void) const;
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template <typename U>
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matrix<U> cast (void) const;
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// Perspective matrices
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static matrix<T> ortho (T left, T right, T bottom, T top, T near, T far);
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static matrix<T> ortho2D (T left, T right, T bottom, T top);
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static matrix<T> perspective (T fov, T aspect, T near, T far);
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static matrix<T> look_at (point<3,T> eye, point<3,T> centre, vector<3,T> up);
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// Affine matrices
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static matrix<T> translate (util::vector<2,T>);
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static matrix<T> translate (util::vector<3,T>);
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static matrix<T> scale (util::vector<3,T>);
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static matrix<T> scale (T);
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static matrix<T> rotate (T angle, util::vector<3,T> about);
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// Constant matrices
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static const matrix<T> IDENTITY;
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static const matrix<T> ZEROES;
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};
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typedef matrix<float> matrixf;
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typedef matrix<float> matrix4f;
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template <typename T>
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std::ostream& operator<< (std::ostream&, const matrix<T>&);
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}
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#include "matrix.ipp"
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#endif
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