forked from Ivasoft/DSView
99 lines
2.4 KiB
C++
99 lines
2.4 KiB
C++
/*
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* This file is part of the DSLogic-gui project.
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* DSLogic-gui is based on PulseView.
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*
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* Copyright (C) 2012 Joel Holdsworth <joel@airwebreathe.org.uk>
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* Copyright (C) 2013 DreamSourceLab <dreamsourcelab@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 DSLOGIC_PV_DATA_ANALOGSNAPSHOT_H
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#define DSLOGIC_PV_DATA_ANALOGSNAPSHOT_H
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#include "snapshot.h"
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#include <utility>
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#include <vector>
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namespace AnalogSnapshotTest {
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class Basic;
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}
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namespace pv {
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namespace data {
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class AnalogSnapshot : public Snapshot
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{
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public:
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struct EnvelopeSample
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{
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uint16_t min;
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uint16_t 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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public:
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AnalogSnapshot(const sr_datafeed_analog &analog, uint64_t _total_sample_len, unsigned int channel_num);
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virtual ~AnalogSnapshot();
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void append_payload(const sr_datafeed_analog &analog);
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const uint16_t* get_samples(int64_t start_sample,
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int64_t end_sample) const;
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void get_envelope_section(EnvelopeSection &s,
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uint64_t start, uint64_t end, float min_length, int probe_index) const;
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private:
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void reallocate_envelope(Envelope &l);
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void append_payload_to_envelope_levels();
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private:
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struct Envelope _envelope_levels[2*DS_MAX_ANALOG_PROBES_NUM][ScaleStepCount];
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friend class AnalogSnapshotTest::Basic;
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};
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} // namespace data
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} // namespace pv
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#endif // DSLOGIC_PV_DATA_ANALOGSNAPSHOT_H
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