/*************************************************************************** ** ** Copyright (C) 2015 The Qt Company Ltd. ** Contact: http://www.qt.io/licensing/ ** ** This file is part of the examples of the Qt Toolkit. ** ** This program 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 2.1. This ** program 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 General Public License ** for more details. You should have received a copy of the GNU General ** Public License along with this program. If not, see ** <http://www.gnu.org/licenses/>. ** ***************************************************************************/#ifndef FFTREAL_WRAPPER_H #define FFTREAL_WRAPPER_H #include <QtCore/QtGlobal> #if defined(FFTREAL_LIBRARY) # define FFTREAL_EXPORT Q_DECL_EXPORT #else # define FFTREAL_EXPORT Q_DECL_IMPORT #endif class FFTRealWrapperPrivate; // Each pass of the FFT processes 2^X samples, where X is the // number below. static const int FFTLengthPowerOfTwo = 12; /** * Wrapper around the FFTRealFixLen template provided by the FFTReal * library * * This class instantiates a single instance of FFTRealFixLen, using * FFTLengthPowerOfTwo as the template parameter. It then exposes * FFTRealFixLen<FFTLengthPowerOfTwo>::do_fft via the calculateFFT * function, thereby allowing an application to dynamically link * against the FFTReal implementation. * * See http://ldesoras.free.fr/prod.html */ class FFTREAL_EXPORT FFTRealWrapper { public: FFTRealWrapper(); ~FFTRealWrapper(); typedef float DataType; void calculateFFT(DataType in[], const DataType out[]); private: FFTRealWrapperPrivate* m_private; }; #endif // FFTREAL_WRAPPER_H
