73 lines
2.5 KiB
C++
73 lines
2.5 KiB
C++
// Filename: lsimpleMatrix.h
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// Created by: drose (15Dec11)
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//
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////////////////////////////////////////////////////////////////////
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//
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// PANDA 3D SOFTWARE
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// Copyright (c) Carnegie Mellon University. All rights reserved.
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//
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// All use of this software is subject to the terms of the revised BSD
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// license. You should have received a copy of this license along
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// with this source code in a file named "LICENSE."
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//
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////////////////////////////////////////////////////////////////////
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#ifndef LSIMPLEMATRIX_H
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#define LSIMPLEMATRIX_H
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#include "pandabase.h"
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#ifdef HAVE_EIGEN
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#include <Eigen/Dense>
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#endif
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////////////////////////////////////////////////////////////////////
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// Class : LSimpleMatrix
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// Description : This class provides an underlying storage of the
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// various linear-algebra classes (e.g. LVecBase3,
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// LMatrix4) in the absence of the Eigen linear algebra
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// library.
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////////////////////////////////////////////////////////////////////
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template <class FloatType, int NumRows, int NumCols>
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class LSimpleMatrix {
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public:
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INLINE LSimpleMatrix();
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INLINE LSimpleMatrix(const LSimpleMatrix<FloatType, NumRows, NumCols> ©);
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INLINE void operator = (const LSimpleMatrix<FloatType, NumRows, NumCols> ©);
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INLINE const FloatType &operator () (int row, int col) const;
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INLINE FloatType &operator () (int row, int col);
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INLINE const FloatType &operator () (int col) const;
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INLINE FloatType &operator () (int col);
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private:
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FloatType _array[NumRows][NumCols];
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};
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#include "lsimpleMatrix.I"
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// Now, do we actually use LSimpleMatrix, or do we use Eigen::Matrix?
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#ifdef HAVE_EIGEN
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#define UNALIGNED_LINMATH_MATRIX(FloatType, NumRows, NumCols) Eigen::Matrix<FloatType, NumRows, NumCols, Eigen::DontAlign | Eigen::RowMajor>
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#ifdef LINMATH_ALIGN
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#define LINMATH_MATRIX(FloatType, NumRows, NumCols) Eigen::Matrix<FloatType, NumRows, NumCols, Eigen::RowMajor>
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#else // LINMATH_ALIGN
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#define LINMATH_MATRIX(FloatType, NumRows, NumCols) UNALIGNED_LINMATH_MATRIX(FloatType, NumRows, NumCols)
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#endif // LINMATH_ALIGN
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#else // HAVE_EIGEN
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#define UNALIGNED_LINMATH_MATRIX(FloatType, NumRows, NumCols) LSimpleMatrix<FloatType, NumRows, NumCols>
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#define LINMATH_MATRIX(FloatType, NumRows, NumCols) UNALIGNED_LINMATH_MATRIX(FloatType, NumRows, NumCols)
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#endif // HAVE_EIGEN
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// This is as good a place as any to define this alignment macro.
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#ifdef LINMATH_ALIGN
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#define ALIGN_LINMATH ALIGN_16BYTE
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#else
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#define ALIGN_LINMATH
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#endif // LINMATH_ALIGN
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#endif
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