67 lines
2.1 KiB
C
67 lines
2.1 KiB
C
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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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* @file lsimpleMatrix.h
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* @author drose
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* @date 2011-12-15
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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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* This class provides an underlying storage of the various linear-algebra
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* classes (e.g. LVecBase3, LMatrix4) in the absence of the Eigen linear
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* algebra 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 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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#if defined(LINMATH_ALIGN) && defined(HAVE_EIGEN) && defined(__AVX__) && defined(STDFLOAT_DOUBLE)
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#define ALIGN_LINMATH ALIGN_32BYTE
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#elif defined(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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