SDIFMatrix.hxx

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/*
 * Copyright (c) 2004 MUSIC TECHNOLOGY GROUP (MTG)
 *                         UNIVERSITAT POMPEU FABRA
 *
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 *
 */

#ifndef _SdifMatrix_hxx_
#define _SdifMatrix_hxx_

#include "SDIFHeader.hxx"

#undef CLAM_USE_XML
#include "Array.hxx"

#include "SDIFType.hxx"

namespace SDIF
{
        class Matrix
        {
        friend class File;
        protected:
                MatrixHeader mHeader;

                Matrix(const MatrixHeader& header)
                :mHeader(header)
                {
                }

                Matrix(
                                const TypeId& type = TypeId::sDefault,DataType dataType = eUnknown,
                                CLAM::TInt32 nRows = 0, CLAM::TInt32 nColumns = 0);
                virtual char* GetPtr(void) = 0;
                virtual void Resize(int nElems) = 0;
                virtual void SetSize(int nElems) = 0;
        public:
                virtual ~Matrix() { }

                TypeId Type(void) {return mHeader.mType;}

                CLAM::TInt32 Rows(void) { return mHeader.mnRows; }
                CLAM::TInt32 Columns(void) { return mHeader.mnColumns; }
                CLAM::TInt32 SizeInFile(void)
                {
                        CLAM::TUInt32 nElems = mHeader.mnColumns*mHeader.mnRows;
                        CLAM::TUInt32 elemSize = mHeader.mDataType&0xFF;
                        CLAM::TUInt32 size = nElems*elemSize;
                        CLAM::TUInt32 padding = 8-size&7;

                        return mHeader.SizeInFile()+size+padding;
                }
        };

        template <class T=CLAM::TFloat32> class ConcreteMatrix:public Matrix
        {
        friend class File;
        private:
                CLAM::Array<T> mpData;
        public:
                ConcreteMatrix(
                                const TypeId& type = TypeId::sDefault,
                                CLAM::TInt32 nRows = 0, CLAM::TInt32 nColumns = 0)
                        : Matrix(type,GetType<T>::Get(),nRows,nColumns)
                {
                        CLAM::TInt32 nElems = Rows()*Columns();
                        Resize(nElems);
                        SetSize(nElems);
                }

                ConcreteMatrix(const MatrixHeader& header)
                :Matrix(header)
                {
                        CLAM::TInt32 nElems = Rows()*Columns();
                        Resize(nElems);
                        SetSize(nElems);
                }

                char* GetPtr(void) { return (char*)mpData.GetPtr(); }
                void Resize(int nElems) { mpData.Resize(nElems); }
                void SetSize(int nElems) { mpData.SetSize(nElems); }


                T GetValue(CLAM::TInt32 row,CLAM::TInt32 col)
                {
                        return mpData[row*mHeader.mnColumns + col];
                }
                
                void SetValue(CLAM::TInt32 row,CLAM::TInt32 col,const T& val)
                {
                        mpData[row*mHeader.mnColumns + col] = val;
                }
        };
}

#endif//_SdifMatrix_hxx_