WaveFiltBase.h

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#ifndef _WaveFiltBase_h_
#define _WaveFiltBase_h_
 
#include <vapor/MyBase.h>
 
namespace VAPoR {
 
//
class WASP_API WaveFiltBase {
public:
    WaveFiltBase();
    virtual ~WaveFiltBase();
 
    int GetLength() const { return (_filterLength); };
 
    const double *GetLowDecomFilCoef() const { return (_lowDecomFilCoef); };
 
    const double *GetLowReconFilCoef() const { return (_lowReconFilCoef); };
 
    const double *GetHighDecomFilCoef() const { return (_hiDecomFilCoef); };
 
    const double *GetHighReconFilCoef() const { return (_hiReconFilCoef); };
 
    virtual bool issymmetric() const { return (false); };
 
    virtual bool isint() const { return (false); };
 
    virtual bool IsNormalized() const { return (true); };
 
protected:
    static const int MAX_FILTER_SIZE = 32;    // space allocated to filters
    int              _filterLength;           // length of filters
    double *         _lowDecomFilCoef;
    double *         _lowReconFilCoef;
    double *         _hiDecomFilCoef;
    double *         _hiReconFilCoef;
 
    /*-------------------------------------------
     * Flipping Operation
     *-----------------------------------------*/
    void wrev(const double *sigIn, double *sigOut, int sigLength) const;
 
    /*-------------------------------------------
     * Quadrature Mirror Filtering Operation
     *-----------------------------------------*/
    void qmf_even(const double *sigIn, double *sigOut, int sigLength) const;
 
    /*-------------------------------------------
     * Flipping and QMF at the same time
     *-----------------------------------------*/
    void qmf_wrev(const double *sigIn, double *sigOut, int sigLength) const;
 
    /*-------------------------------------------
     * Verbatim Copying
     *-----------------------------------------*/
    void verbatim_copy(const double *sigIn, double *sigOut, int sigLength) const;
};
 
}    // namespace VAPoR
 
#endif