FFTAcceleration_2wayM2L.h

/*
 * FFTAcceleration_2wayM2L.h
 *
 *  Created on: Feb 10, 2016
 *      Author: gallardjm
 */
#ifndef FFTACC_ARR_H_
#define FFTACC_ARR_H_
 
#include "bhfmm/fft/FFTAccelerationImplementations/FFTDataContainer_arrays.h"
#include "bhfmm/fft/FFTAccelerationAPI_extensions.h"
#include "bhfmm/fft/FFTSettings_preprocessor.h"
#include "bhfmm/fft/FFTSettings.h"
 
class FFTAcceleration_2wayM2L: public FFTAccelerationAPI_2Way {
 
public:
 
    //child class will be upcasted, virtual destructor required to call the right child class destructor
    virtual ~~FFTAcceleration_2wayM2L() {
    }
 
    void FFT_initialize_Target(FFTAccelerableExpansion & Expansion);
 
    //Not defined since they shouldn't be used
    void FFT_M2L(FFTAccelerableExpansion & Source,
            FFTAccelerableExpansion & Target,
            FFTDataContainer* TransferFunction) {
    }
    void FFT_M2L_vec(FFTAccelerableExpansion & Source,
            FFTAccelerableExpansion & Target,
            FFTDataContainer* TransferFunction) {
    }
 
    //2way M2L mathods from FFTAcceleration_2Way
    void FFT_M2L_2way(FFTAccelerableExpansion & Source1,
            FFTAccelerableExpansion & Source2,
            FFTAccelerableExpansion & Target1,
            FFTAccelerableExpansion & Target2,
            FFTDataContainer* TransferFunction);
    void FFT_M2L_2way_vec(FFTAccelerableExpansion & Source1,
            FFTAccelerableExpansion & Source2,
            FFTAccelerableExpansion & Target1,
            FFTAccelerableExpansion & Target2,
            FFTDataContainer* TransferFunction);
 
protected:
    FFTDataContainer_arrays* getFFTData(FFTAccelerableExpansion & Expansion);
 
    int _nbZeroes; // number of zeroes used for the padding (see bhfmm/fft/tools/fft_utils)
    int _totalSize; //_fft_nx * _fft_ny + _nbZeroes * 2, is even as _fft_nx must be even
};
 
#endif