+++ /dev/null
-/*
- * This file is part of the PulseView project.
- *
- * Copyright (C) 2012 Joel Holdsworth <joel@airwebreathe.org.uk>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * 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, write to the Free Software
- * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
- */
-
-#ifndef PULSEVIEW_PV_DATA_LOGICSNAPSHOT_H
-#define PULSEVIEW_PV_DATA_LOGICSNAPSHOT_H
-
-#include "snapshot.h"
-
-#include <utility>
-#include <vector>
-
-namespace sigrok {
- class Logic;
-}
-
-namespace LogicSnapshotTest {
-struct Pow2;
-struct Basic;
-struct LargeData;
-struct Pulses;
-struct LongPulses;
-}
-
-namespace pv {
-namespace data {
-
-class LogicSnapshot : public Snapshot
-{
-private:
- struct MipMapLevel
- {
- uint64_t length;
- uint64_t data_length;
- void *data;
- };
-
-private:
- static const unsigned int ScaleStepCount = 10;
- static const int MipMapScalePower;
- static const int MipMapScaleFactor;
- static const float LogMipMapScaleFactor;
- static const uint64_t MipMapDataUnit;
-
-public:
- typedef std::pair<int64_t, bool> EdgePair;
-
-public:
- LogicSnapshot(std::shared_ptr<sigrok::Logic> logic,
- uint64_t expected_num_samples = 0);
-
- virtual ~LogicSnapshot();
-
- void append_payload(std::shared_ptr<sigrok::Logic> logic);
-
- void get_samples(uint8_t *const data,
- int64_t start_sample, int64_t end_sample) const;
-
-private:
- uint64_t unpack_sample(const uint8_t *ptr) const;
- void pack_sample(uint8_t *ptr, uint64_t value);
-
- void reallocate_mipmap_level(MipMapLevel &m);
-
- void append_payload_to_mipmap();
-
- uint64_t get_sample(uint64_t index) const;
-
-public:
- /**
- * Parses a logic data snapshot to generate a list of transitions
- * in a time interval to a given level of detail.
- * @param[out] edges The vector to place the edges into.
- * @param[in] start The start sample index.
- * @param[in] end The end sample index.
- * @param[in] min_length The minimum number of samples that
- * can be resolved at this level of detail.
- * @param[in] sig_index The index of the signal.
- **/
- void get_subsampled_edges(std::vector<EdgePair> &edges,
- uint64_t start, uint64_t end,
- float min_length, int sig_index);
-
-private:
- uint64_t get_subsample(int level, uint64_t offset) const;
-
- static uint64_t pow2_ceil(uint64_t x, unsigned int power);
-
-private:
- struct MipMapLevel mip_map_[ScaleStepCount];
- uint64_t last_append_sample_;
-
- friend struct LogicSnapshotTest::Pow2;
- friend struct LogicSnapshotTest::Basic;
- friend struct LogicSnapshotTest::LargeData;
- friend struct LogicSnapshotTest::Pulses;
- friend struct LogicSnapshotTest::LongPulses;
-};
-
-} // namespace data
-} // namespace pv
-
-#endif // PULSEVIEW_PV_DATA_LOGICSNAPSHOT_H