forked from Ivasoft/DSView
155 lines
3.5 KiB
C++
155 lines
3.5 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_MATHSTACK_H
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#define DSVIEW_PV_DATA_MATHSTACK_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 <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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class dslDial;
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}
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namespace data {
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class DsoSnapshot;
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class Dso;
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class MathStack : public QObject, public SignalData
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{
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Q_OBJECT
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public:
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enum math_state {
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Init,
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Stopped,
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Running
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};
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enum MathType {
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MATH_ADD,
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MATH_SUB,
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MATH_MUL,
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MATH_DIV,
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};
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struct EnvelopeSample
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{
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double min;
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double max;
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};
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struct EnvelopeSection
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{
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uint64_t start;
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unsigned int scale;
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uint64_t length;
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EnvelopeSample *samples;
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};
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private:
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struct Envelope
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{
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uint64_t length;
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uint64_t data_length;
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EnvelopeSample *samples;
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};
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private:
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static const unsigned int ScaleStepCount = 10;
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static const int EnvelopeScalePower;
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static const int EnvelopeScaleFactor;
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static const float LogEnvelopeScaleFactor;
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static const uint64_t EnvelopeDataUnit;
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static const uint64_t vDialValueStep = 1000;
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static const int vDialValueCount = 19;
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static const uint64_t vDialValue[vDialValueCount];
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static const int vDialUnitCount = 2;
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static const QString vDialAddUnit[vDialUnitCount];
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static const QString vDialMulUnit[vDialUnitCount];
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static const QString vDialDivUnit[vDialUnitCount];
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public:
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MathStack(pv::SigSession *_session,
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view::DsoSignal *dsoSig1,
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view::DsoSignal *dsoSig2, MathType type);
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virtual ~MathStack();
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void clear();
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void init();
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void free_envelop();
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void realloc(uint64_t num);
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MathType get_type();
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uint64_t get_sample_num();
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void enable_envelope(bool enable);
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uint64_t default_vDialValue();
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view::dslDial *get_vDial();
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QString get_unit(int level);
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double get_math_scale();
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const double *get_math(uint64_t start);
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void get_math_envelope_section(EnvelopeSection &s,
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uint64_t start, uint64_t end, float min_length);
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void calc_math();
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void reallocate_envelope(Envelope &e);
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void append_to_envelope_level(bool header);
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signals:
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private:
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pv::SigSession *_session;
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view::DsoSignal *_dsoSig1;
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view::DsoSignal *_dsoSig2;
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MathType _type;
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uint64_t _sample_num;
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uint64_t _total_sample_num;
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math_state _math_state;
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struct Envelope _envelope_level[ScaleStepCount];
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std::vector<double> _math;
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bool _envelope_en;
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bool _envelope_done;
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};
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} // namespace data
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} // namespace pv
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#endif // DSVIEW_PV_DATA_MATHSTACK_H
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