forked from Ivasoft/DSView
122 lines
3.4 KiB
C++
122 lines
3.4 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_LOGICSNAPSHOT_H
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#define DSLOGIC_PV_DATA_LOGICSNAPSHOT_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 LogicSnapshotTest {
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class Pow2;
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class Basic;
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class LargeData;
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class Pulses;
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class LongPulses;
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}
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namespace pv {
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namespace data {
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class LogicSnapshot : public Snapshot
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{
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private:
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struct MipMapLevel
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{
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uint64_t length;
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uint64_t data_length;
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void *data;
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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 MipMapScalePower;
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static const int MipMapScaleFactor;
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static const float LogMipMapScaleFactor;
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static const uint64_t MipMapDataUnit;
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public:
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typedef std::pair<uint64_t, bool> EdgePair;
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public:
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LogicSnapshot(const sr_datafeed_logic &logic, uint64_t _total_sample_len, unsigned int channel_num);
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virtual ~LogicSnapshot();
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void append_payload(const sr_datafeed_logic &logic);
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uint64_t get_sample(uint64_t index) const;
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private:
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void reallocate_mipmap_level(MipMapLevel &m);
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void append_payload_to_mipmap();
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public:
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/**
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* Parses a logic data snapshot to generate a list of transitions
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* in a time interval to a given level of detail.
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* @param[out] edges The vector to place the edges into.
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* @param[in] start The start sample index.
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* @param[in] end The end sample index.
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* @param[in] min_length The minimum number of samples that
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* can be resolved at this level of detail.
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* @param[in] sig_index The index of the signal.
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**/
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void get_subsampled_edges(std::vector<EdgePair> &edges,
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uint64_t start, uint64_t end,
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float min_length, int sig_index);
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int get_first_edge(uint64_t &edge_index, bool &edge,
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uint64_t start, uint64_t end,
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int sig_index, int edge_type,
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int flag_index, int flag);
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void get_edges(std::vector<EdgePair> &edges,
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uint64_t start, uint64_t end, int sig_index, int edge_type);
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uint64_t get_min_pulse(uint64_t start, uint64_t end, int sig_index);
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private:
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uint64_t get_subsample(int level, uint64_t offset) const;
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static uint64_t pow2_ceil(uint64_t x, unsigned int power);
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private:
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struct MipMapLevel _mip_map[ScaleStepCount];
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uint64_t _last_append_sample;
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friend class LogicSnapshotTest::Pow2;
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friend class LogicSnapshotTest::Basic;
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friend class LogicSnapshotTest::LargeData;
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friend class LogicSnapshotTest::Pulses;
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friend class LogicSnapshotTest::LongPulses;
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};
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} // namespace data
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} // namespace pv
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#endif // DSLOGIC_PV_DATA_LOGICSNAPSHOT_H
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