declarative

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, UInt dim>
			class FFTransformFFTW : public FFTransform<T, dim> {
			public:
			/// Constructor
			FFTransformFFTW(Grid<T, dim> & real,
			GridHermitian<T, dim> & spectral);

			/// Destructor
			virtual ~FFTransformFFTW();

			public:
			/// Perform FFT
			void forwardTransform();

			/// Perform IFFT
			void backwardTransform();

			private:
			fftw_plan forward_plan;
			fftw_plan backward_plan;
			};

			__END_TAMAAS__

			#endif // FFTRANSFORM_FFTW_HH