forked from Ivasoft/DSView
106 lines
2.3 KiB
C++
106 lines
2.3 KiB
C++
/*
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* This file is part of the PulseView project.
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* DSView is based on PulseView.
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*
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* Copyright (C) 2016 DreamSourceLab <support@dreamsourcelab.com>
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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 General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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#ifndef DSVIEW_PV_DATA_SPECTRUMSTACK_H
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#define DSVIEW_PV_DATA_SPECTRUMSTACK_H
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#include "signaldata.h"
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#include <list>
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#include <boost/optional.hpp>
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#include <fftw3.h>
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#include <QObject>
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#include <QString>
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namespace pv {
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class SigSession;
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namespace view {
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class DsoSignal;
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}
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namespace data {
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class DsoSnapshot;
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class SpectrumStack : public QObject, public SignalData
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{
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Q_OBJECT
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public:
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enum spectrum_state {
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Init,
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Stopped,
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Running
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};
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public:
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SpectrumStack(pv::SigSession *_session, int index);
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virtual ~SpectrumStack();
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void clear();
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void init();
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int get_index();
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uint64_t get_sample_num();
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void set_sample_num(uint64_t num);
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int get_windows_index();
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void set_windows_index(int index);
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bool dc_ignored();
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void set_dc_ignore(bool ignore);
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int get_sample_interval();
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void set_sample_interval(int interval);
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const std::vector<double> get_fft_spectrum();
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double get_fft_spectrum(uint64_t index);
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void calc_fft();
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double window(uint64_t i, int type);
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private:
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pv::SigSession *_session;
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int _index;
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uint64_t _sample_num;
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int _windows_index;
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bool _dc_ignore;
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int _sample_interval;
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spectrum_state _spectrum_state;
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fftw_plan _fft_plan;
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std::vector<double> _xn;
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std::vector<double> _xk;
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std::vector<double> _power_spectrum;
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};
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} // namespace data
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} // namespace pv
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#endif // DSVIEW_PV_DATA_SPECTRUMSTACK_H
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