fftreal_wrapper.cpp Example File

demos/spectrum/3rdparty/fftreal/fftreal_wrapper.cpp
 /***************************************************************************
 **
 ** 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/>.
 **
 ***************************************************************************/

 #include "fftreal_wrapper.h"

 // FFTReal code generates quite a lot of 'unused parameter' compiler warnings,
 // which we suppress here in order to get a clean build output.
 #if defined Q_CC_MSVC
 #    pragma warning(disable:4100)
 #elif defined Q_CC_GNU
 #    pragma GCC diagnostic ignored "-Wunused-parameter"
 #elif defined Q_CC_MWERKS
 #    pragma warning off (10182)
 #endif

 #include "FFTRealFixLen.h"

 class FFTRealWrapperPrivate {
 public:
     FFTRealFixLen<FFTLengthPowerOfTwo> m_fft;
 };

 FFTRealWrapper::FFTRealWrapper()
     :   m_private(new FFTRealWrapperPrivate)
 {

 }

 FFTRealWrapper::~FFTRealWrapper()
 {
     delete m_private;
 }

 void FFTRealWrapper::calculateFFT(DataType in[], const DataType out[])
 {
     m_private->m_fft.do_fft(in, out);
 }