bc7d964a05
Change-Id: Ib82c1be5548443ef1f5e97b3d5641a2f55d212af Reviewed-by: Rohan McGovern <rohan.mcgovern@nokia.com>
64 lines
1.9 KiB
C++
64 lines
1.9 KiB
C++
/***************************************************************************
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**
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** Copyright (C) 2012 Nokia Corporation and/or its subsidiary(-ies).
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** Contact: Nokia Corporation (qt-info@nokia.com)
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**
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** This file is part of the examples of the Qt Toolkit.
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**
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** This program is free software: you can redistribute it and/or modify
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** it under the terms of the GNU Lesser General Public License as
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** published by the Free Software Foundation, either version 2.1. This
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** program is distributed in the hope that it will be useful, but WITHOUT
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** ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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** FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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** for more details. You should have received a copy of the GNU General
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** Public License along with this program. If not, see
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** <http://www.gnu.org/licenses/>.
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**
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***************************************************************************/
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#ifndef FFTREAL_WRAPPER_H
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#define FFTREAL_WRAPPER_H
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#include <QtCore/QtGlobal>
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#if defined(FFTREAL_LIBRARY)
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# define FFTREAL_EXPORT Q_DECL_EXPORT
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#else
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# define FFTREAL_EXPORT Q_DECL_IMPORT
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#endif
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class FFTRealWrapperPrivate;
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// Each pass of the FFT processes 2^X samples, where X is the
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// number below.
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static const int FFTLengthPowerOfTwo = 12;
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/**
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* Wrapper around the FFTRealFixLen template provided by the FFTReal
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* library
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*
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* This class instantiates a single instance of FFTRealFixLen, using
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* FFTLengthPowerOfTwo as the template parameter. It then exposes
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* FFTRealFixLen<FFTLengthPowerOfTwo>::do_fft via the calculateFFT
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* function, thereby allowing an application to dynamically link
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* against the FFTReal implementation.
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*
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* See http://ldesoras.free.fr/prod.html
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*/
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class FFTREAL_EXPORT FFTRealWrapper
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{
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public:
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FFTRealWrapper();
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~FFTRealWrapper();
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typedef float DataType;
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void calculateFFT(DataType in[], const DataType out[]);
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private:
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FFTRealWrapperPrivate* m_private;
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};
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#endif // FFTREAL_WRAPPER_H
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