/Users/ljp/code/gamma/trunk/Gamma/FFT.h

#ifndef GAMMA_FFT_H_INC
#define GAMMA_FFT_H_INC


namespace gam{



template <class T>
class CFFT{
public:

    CFFT(int size=0);
    
    ~CFFT();

    int size() const;

    
    void forward(T * buf, bool normalize=true);

    template <template <class> class ComplexType>
    void forward(ComplexType<T> * buf, bool normalize=true){
        forward((T*)buf, normalize);
    }

    void inverse(T * buf);

    template <template <class> class ComplexType>
    void inverse(ComplexType<T> * buf){ inverse((T*)buf); }

    void resize(int n);

private:
    class Impl; Impl * mImpl;
};




template <class T>
class RFFT{
public:

    RFFT(int size=0);
    
    ~RFFT();

    int size() const;
    
    
    void forward(T * buf, bool complexBuf=false, bool normalize=true);
    

    void inverse(T * buf, bool complexBuf=false);

    void resize(int n);
    

private:
    class Impl; Impl * mImpl;
};

} // gam::

#endif