TooN: internal/reference.hh Source File

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internal/reference.hh

    00001 // -*- c++ -*-
    00002
    00003 // Copyright (C) 2009 Tom Drummond (twd20@cam.ac.uk),
    00004 // Ed Rosten (er258@cam.ac.uk)
    00005 //
    00006 // This file is part of the TooN Library.  This library is free
    00007 // software; you can redistribute it and/or modify it under the
    00008 // terms of the GNU General Public License as published by the
    00009 // Free Software Foundation; either version 2, or (at your option)
    00010 // any later version.
    00011
    00012 // This library is distributed in the hope that it will be useful,
    00013 // but WITHOUT ANY WARRANTY; without even the implied warranty of
    00014 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    00015 // GNU General Public License for more details.
    00016
    00017 // You should have received a copy of the GNU General Public License along
    00018 // with this library; see the file COPYING.  If not, write to the Free
    00019 // Software Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307,
    00020 // USA.
    00021
    00022 // As a special exception, you may use this file as part of a free software
    00023 // library without restriction.  Specifically, if other files instantiate
    00024 // templates or use macros or inline functions from this file, or you compile
    00025 // this file and link it with other files to produce an executable, this
    00026 // file does not by itself cause the resulting executable to be covered by
    00027 // the GNU General Public License.  This exception does not however
    00028 // invalidate any other reasons why the executable file might be covered by
    00029 // the GNU General Public License.
    00030
    00031 namespace TooN {
    00032
    00033 ////////////////////////////////////////////////////////////////////////////////
    00034 //
    00035 // Helper classes for matrices constructed as references to foreign data
    00036 //
    00037
    00038 struct Reference
    00039 {
    00040
    00041     template<int Size, typename Precision>
    00042     struct VLayout
    00043         : public Internal::GenericVBase<Size, Precision, 1, Internal::VectorSlice<Size, Precision> >
    00044     {
    00045
    00046         VLayout(Precision* p, int sz=0)
    00047             : Internal::GenericVBase<Size, Precision, 1, Internal::VectorSlice<Size, Precision> >(p, sz, 0)
    00048         {}
    00049     };
    00050
    00051
    00052     struct RowMajor
    00053     {
    00054         template<int Rows, int Cols, class Precision>
    00055         struct MLayout
    00056             : public Internal::GenericMBase<Rows, Cols, Precision, (Cols==-1?-2:Cols), 1, Internal::MatrixSlice<Rows, Cols, Precision> >
    00057         {
    00058
    00059             MLayout(Precision* p)
    00060                 : Internal::GenericMBase<Rows,Cols,Precision, (Cols==-1?-2:Cols), 1, Internal::MatrixSlice<Rows, Cols, Precision> > (p)
    00061             {}
    00062             MLayout(Precision* p, int r, int c)
    00063                 : Internal::GenericMBase<Rows,Cols,Precision, (Cols==-1?-2:Cols), 1, Internal::MatrixSlice<Rows, Cols, Precision> > (p, r, c, 0, 0)
    00064             {}
    00065         };
    00066     };
    00067
    00068     struct ColMajor
    00069     {
    00070         template<int Rows, int Cols, class Precision> struct MLayout: public Internal::GenericMBase<Rows, Cols, Precision, 1, (Rows==-1?-2:Rows), Internal::MatrixSlice<Rows, Cols, Precision> >
    00071         {
    00072             MLayout(Precision* p)
    00073                 : Internal::GenericMBase<Rows, Cols, Precision, 1, (Rows==-1?-2:Rows), Internal::MatrixSlice<Rows, Cols, Precision> >(p)
    00074             {}
    00075             MLayout(Precision* p, int r, int c)
    00076                 : Internal::GenericMBase<Rows, Cols, Precision, 1, (Rows==-1?-2:Rows), Internal::MatrixSlice<Rows, Cols, Precision> >(p, r, c, 0, 0)
    00077             {}
    00078         };
    00079     };
    00080 };
    00081
    00082
    00083                                     inline       Vector<Dynamic, double,          Reference> wrapVector(double* data, int size)          { return Vector<Dynamic, double,          Reference>(data, size); }
    00084                                     inline const Vector<Dynamic, const double,    Reference> wrapVector(const double* data, int size)    { return Vector<Dynamic, const double,    Reference>(data, size); }
    00085 template<int Size>                  inline       Vector<Size,    double,          Reference> wrapVector(double* data)                    { return Vector<Size,    double,          Reference>(data); }
    00086 template<int Size>                  inline const Vector<Size,    const double,    Reference> wrapVector(const double* data)              { return Vector<Size,    const double,    Reference>(data); }
    00087 template<class Precision>           inline       Vector<Dynamic, Precision,       Reference> wrapVector(Precision* data, int size)       { return Vector<Dynamic, Precision,       Reference>(data, size); }
    00088 template<class Precision>           inline const Vector<Dynamic, const Precision, Reference> wrapVector(const Precision* data, int size) { return Vector<Dynamic, const Precision, Reference>(data, size); }
    00089 template<int Size, class Precision> inline       Vector<Size,    Precision,       Reference> wrapVector(Precision* data)                 { return Vector<Size,    Precision,       Reference>(data); }
    00090 template<int Size, class Precision> inline const Vector<Size,    const Precision, Reference> wrapVector(const Precision* data)           { return Vector<Size,    const Precision, Reference>(data); }
    00091
    00092 ///Wrap external data as a \link TooN::Matrix Matrix \endlink
    00093 ///As usual, if template sizes are provided, then the run-time size is only
    00094 ///used if the template size is not Dynamic.
    00095 ///@ingroup gLinAlg
    00096 ///@{
    00097 //Fully static matrices, ie no size parameters
    00098 template<int Rows, int Cols>                  inline       Matrix<Rows, Cols,       double,          Reference::RowMajor> wrapMatrix(double*    data)                           { return Matrix<Rows, Cols,       double,          Reference::RowMajor>(data);}
    00099 template<int Rows, int Cols>                  inline const Matrix<Rows, Cols,       const double,    Reference::RowMajor> wrapMatrix(const double*    data)                     { return Matrix<Rows, Cols,       const double,    Reference::RowMajor>(data);}
    00100 template<int Rows, int Cols, class Precision> inline       Matrix<Rows, Cols,       Precision,       Reference::RowMajor> wrapMatrix(Precision* data)                           { return Matrix<Rows, Cols,       Precision,       Reference::RowMajor>(data);}
    00101 template<int Rows, int Cols, class Precision> inline const Matrix<Rows, Cols,       const Precision, Reference::RowMajor> wrapMatrix(const Precision* data)                     { return Matrix<Rows, Cols,       const Precision, Reference::RowMajor>(data);}
    00102 //Static sizes with size parameters (useful for half-dynamic matrices)
    00103 template<int Rows, int Cols>                  inline       Matrix<Rows, Cols,       double,          Reference::RowMajor> wrapMatrix(double*    data, int rows, int cols)       { return Matrix<Rows, Cols,       double,          Reference::RowMajor>(data, rows, cols);}
    00104 template<int Rows, int Cols>                  inline const Matrix<Rows, Cols,       const double,    Reference::RowMajor> wrapMatrix(const double*    data, int rows, int cols) { return Matrix<Rows, Cols,       const double,    Reference::RowMajor>(data, rows, cols);}
    00105 template<int Rows, int Cols, class Precision> inline       Matrix<Rows, Cols,       Precision,       Reference::RowMajor> wrapMatrix(Precision* data, int rows, int cols)       { return Matrix<Rows, Cols,       Precision,       Reference::RowMajor>(data, rows, cols);}
    00106 template<int Rows, int Cols, class Precision> inline const Matrix<Rows, Cols,       const Precision, Reference::RowMajor> wrapMatrix(const Precision* data, int rows, int cols) { return Matrix<Rows, Cols,       const Precision, Reference::RowMajor>(data, rows, cols);}
    00107 //Fully dynamic
    00108                                               inline       Matrix<Dynamic, Dynamic, double,          Reference::RowMajor> wrapMatrix(double*          data, int rows, int cols) { return Matrix<Dynamic, Dynamic, double,          Reference::RowMajor>(data, rows, cols);}
    00109                                               inline const Matrix<Dynamic, Dynamic, const double,    Reference::RowMajor> wrapMatrix(const double*    data, int rows, int cols) { return Matrix<Dynamic, Dynamic, const double,    Reference::RowMajor>(data, rows, cols);}
    00110 template<class Precision>                     inline       Matrix<Dynamic, Dynamic, Precision,       Reference::RowMajor> wrapMatrix(Precision* data, int rows, int cols)       { return Matrix<Dynamic, Dynamic, Precision,       Reference::RowMajor>(data, rows, cols);}
    00111 template<class Precision>                     inline const Matrix<Dynamic, Dynamic, const Precision, Reference::RowMajor> wrapMatrix(const Precision* data, int rows, int cols) { return Matrix<Dynamic, Dynamic, const Precision, Reference::RowMajor>(data, rows, cols);}
    00112 ///@}
    00113 }