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Fri, Jun 28, 03:24

fftransform_fftw.hh
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/**
*
* @author Lucas Frérot <lucas.frerot@epfl.ch>
*
* @section LICENSE
*
* Copyright (©) 2016 EPFL (Ecole Polytechnique Fédérale de
* Lausanne) Laboratory (LSMS - Laboratoire de Simulation en Mécanique des
* Solides)
*
* Tamaas is free software: you can redistribute it and/or modify it under the
* terms of the GNU Lesser General Public License as published by the Free
* Software Foundation, either version 3 of the License, or (at your option) any
* later version.
*
* Tamaas 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 Lesser General Public License for more
* details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with Tamaas. If not, see <http://www.gnu.org/licenses/>.
*
*/
/* -------------------------------------------------------------------------- */
#ifndef FFTRANSFORM_FFTW_HH
#define FFTRANSFORM_FFTW_HH
#include "fftransform.hh"
#include <fftw3.h>
__BEGIN_TAMAAS__
template <typename T>
class FFTransformFFTW : public FFTransform<T> {
public:
/// Constructor
FFTransformFFTW(UInt size,
Surface<T> & real,
SurfaceComplex<T> & spectral);
/// Destructor
virtual ~FFTransformFFTW();
public:
/// Perform FFT
void forwardTransform();
/// Perform IFFT
void backwardTransform();
/// Write buffer to spectral surface
void writeBuffer();
/// Load buffer from spectral surface
void loadBuffer();
private:
fftw_plan forward_plan;
fftw_plan backward_plan;
fftw_complex * spectral_buffer;
};
__END_TAMAAS__
#endif // FFTRANSFORM_FFTW_HH

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