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Commit | Line | Data |
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28a4c9c5 | 1 | /* |
b3f22de0 | 2 | * This file is part of the PulseView project. |
28a4c9c5 JH |
3 | * |
4 | * Copyright (C) 2012 Joel Holdsworth <joel@airwebreathe.org.uk> | |
5 | * | |
6 | * This program is free software; you can redistribute it and/or modify | |
7 | * it under the terms of the GNU General Public License as published by | |
8 | * the Free Software Foundation; either version 2 of the License, or | |
9 | * (at your option) any later version. | |
10 | * | |
11 | * This program is distributed in the hope that it will be useful, | |
12 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
14 | * GNU General Public License for more details. | |
15 | * | |
16 | * You should have received a copy of the GNU General Public License | |
17 | * along with this program; if not, write to the Free Software | |
18 | * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA | |
19 | */ | |
20 | ||
a38268f0 SA |
21 | #ifndef PULSEVIEW_PV_DATA_LOGICSEGMENT_HPP |
22 | #define PULSEVIEW_PV_DATA_LOGICSEGMENT_HPP | |
640d091b | 23 | |
f3d66e52 | 24 | #include "segment.hpp" |
28a4c9c5 | 25 | |
2858b391 JH |
26 | #include <utility> |
27 | #include <vector> | |
28 | ||
e8d00928 ML |
29 | namespace sigrok { |
30 | class Logic; | |
31 | } | |
32 | ||
f3d66e52 | 33 | namespace LogicSegmentTest { |
9e587572 JS |
34 | struct Pow2; |
35 | struct Basic; | |
36 | struct LargeData; | |
37 | struct Pulses; | |
38 | struct LongPulses; | |
ecda6ca9 JH |
39 | } |
40 | ||
51e77110 | 41 | namespace pv { |
1b1ec774 | 42 | namespace data { |
51e77110 | 43 | |
f3d66e52 | 44 | class LogicSegment : public Segment |
28a4c9c5 | 45 | { |
4ceab49a JH |
46 | private: |
47 | struct MipMapLevel | |
48 | { | |
49 | uint64_t length; | |
50 | uint64_t data_length; | |
51 | void *data; | |
52 | }; | |
53 | ||
54 | private: | |
60b0c2da | 55 | static const unsigned int ScaleStepCount = 10; |
4ceab49a JH |
56 | static const int MipMapScalePower; |
57 | static const int MipMapScaleFactor; | |
0b02e057 | 58 | static const float LogMipMapScaleFactor; |
4ceab49a JH |
59 | static const uint64_t MipMapDataUnit; |
60 | ||
2858b391 JH |
61 | public: |
62 | typedef std::pair<int64_t, bool> EdgePair; | |
63 | ||
28a4c9c5 | 64 | public: |
f3d66e52 | 65 | LogicSegment(std::shared_ptr<sigrok::Logic> logic, |
ff008de6 | 66 | uint64_t samplerate, uint64_t expected_num_samples = 0); |
28a4c9c5 | 67 | |
f3d66e52 | 68 | virtual ~LogicSegment(); |
4ceab49a | 69 | |
e8d00928 | 70 | void append_payload(std::shared_ptr<sigrok::Logic> logic); |
2858b391 | 71 | |
ed990f11 JH |
72 | void get_samples(uint8_t *const data, |
73 | int64_t start_sample, int64_t end_sample) const; | |
74 | ||
4ceab49a | 75 | private: |
8cb71705 MC |
76 | uint64_t unpack_sample(const uint8_t *ptr) const; |
77 | void pack_sample(uint8_t *ptr, uint64_t value); | |
78 | ||
023887ca | 79 | void reallocate_mipmap_level(MipMapLevel &m); |
4ceab49a JH |
80 | |
81 | void append_payload_to_mipmap(); | |
82 | ||
2858b391 JH |
83 | uint64_t get_sample(uint64_t index) const; |
84 | ||
30fcfd9f | 85 | public: |
2858b391 | 86 | /** |
f3d66e52 | 87 | * Parses a logic data segment to generate a list of transitions |
2858b391 JH |
88 | * in a time interval to a given level of detail. |
89 | * @param[out] edges The vector to place the edges into. | |
90 | * @param[in] start The start sample index. | |
91 | * @param[in] end The end sample index. | |
0b02e057 | 92 | * @param[in] min_length The minimum number of samples that |
2858b391 JH |
93 | * can be resolved at this level of detail. |
94 | * @param[in] sig_index The index of the signal. | |
223d0c37 | 95 | */ |
2858b391 | 96 | void get_subsampled_edges(std::vector<EdgePair> &edges, |
60b0c2da | 97 | uint64_t start, uint64_t end, |
0b02e057 JH |
98 | float min_length, int sig_index); |
99 | ||
100 | private: | |
b2bcbe51 | 101 | uint64_t get_subsample(int level, uint64_t offset) const; |
0b02e057 | 102 | |
60b0c2da | 103 | static uint64_t pow2_ceil(uint64_t x, unsigned int power); |
4ceab49a JH |
104 | |
105 | private: | |
8dbbc7f0 JH |
106 | struct MipMapLevel mip_map_[ScaleStepCount]; |
107 | uint64_t last_append_sample_; | |
4ceab49a | 108 | |
f3d66e52 JH |
109 | friend struct LogicSegmentTest::Pow2; |
110 | friend struct LogicSegmentTest::Basic; | |
111 | friend struct LogicSegmentTest::LargeData; | |
112 | friend struct LogicSegmentTest::Pulses; | |
113 | friend struct LogicSegmentTest::LongPulses; | |
28a4c9c5 | 114 | }; |
51e77110 | 115 | |
1b1ec774 | 116 | } // namespace data |
51e77110 | 117 | } // namespace pv |
640d091b | 118 | |
a38268f0 | 119 | #endif // PULSEVIEW_PV_DATA_LOGICSEGMENT_HPP |