90 lines
2.6 KiB
C++
90 lines
2.6 KiB
C++
/*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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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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template <typename T> using matrix4 = matrix<T>;
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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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