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aba1dd16 JH |
1 | /* |
2 | * This file is part of the PulseView project. | |
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 | |
efdec55a | 17 | * along with this program; if not, see <http://www.gnu.org/licenses/>. |
aba1dd16 JH |
18 | */ |
19 | ||
a38268f0 SA |
20 | #ifndef PULSEVIEW_PV_DATA_ANALOGSEGMENT_HPP |
21 | #define PULSEVIEW_PV_DATA_ANALOGSEGMENT_HPP | |
aba1dd16 | 22 | |
f3d66e52 | 23 | #include "segment.hpp" |
aba1dd16 JH |
24 | |
25 | #include <utility> | |
26 | #include <vector> | |
27 | ||
7db61e77 SA |
28 | #include <QObject> |
29 | ||
6f925ba9 UH |
30 | using std::pair; |
31 | ||
f3d66e52 | 32 | namespace AnalogSegmentTest { |
9e587572 | 33 | struct Basic; |
340bc0a4 JH |
34 | } |
35 | ||
aba1dd16 | 36 | namespace pv { |
1b1ec774 | 37 | namespace data { |
aba1dd16 | 38 | |
7db61e77 SA |
39 | class Analog; |
40 | ||
8c339741 | 41 | class AnalogSegment : public Segment |
aba1dd16 | 42 | { |
7db61e77 SA |
43 | Q_OBJECT |
44 | ||
9320072d | 45 | public: |
fda5b6e0 JH |
46 | struct EnvelopeSample |
47 | { | |
48 | float min; | |
49 | float max; | |
50 | }; | |
51 | ||
9320072d JH |
52 | struct EnvelopeSection |
53 | { | |
54 | uint64_t start; | |
55 | unsigned int scale; | |
56 | uint64_t length; | |
57 | EnvelopeSample *samples; | |
58 | }; | |
59 | ||
60 | private: | |
fda5b6e0 JH |
61 | struct Envelope |
62 | { | |
63 | uint64_t length; | |
64 | uint64_t data_length; | |
65 | EnvelopeSample *samples; | |
66 | }; | |
67 | ||
68 | private: | |
69 | static const unsigned int ScaleStepCount = 10; | |
70 | static const int EnvelopeScalePower; | |
71 | static const int EnvelopeScaleFactor; | |
72 | static const float LogEnvelopeScaleFactor; | |
73 | static const uint64_t EnvelopeDataUnit; | |
74 | ||
aba1dd16 | 75 | public: |
85a70280 | 76 | AnalogSegment(Analog& owner, uint32_t segment_id, uint64_t samplerate); |
aba1dd16 | 77 | |
f3d66e52 | 78 | virtual ~AnalogSegment(); |
fda5b6e0 | 79 | |
bb2cdfff JH |
80 | void append_interleaved_samples(const float *data, |
81 | size_t sample_count, size_t stride); | |
a8acb46e | 82 | |
b82243f7 | 83 | void get_samples(int64_t start_sample, int64_t end_sample, float* dest) const; |
aba1dd16 | 84 | |
6f925ba9 | 85 | const pair<float, float> get_min_max() const; |
73e377fe | 86 | |
65c92359 | 87 | float* get_iterator_value_ptr(SegmentDataIterator* it); |
26a883ed | 88 | |
9320072d JH |
89 | void get_envelope_section(EnvelopeSection &s, |
90 | uint64_t start, uint64_t end, float min_length) const; | |
91 | ||
fda5b6e0 | 92 | private: |
520362f8 | 93 | void reallocate_envelope(Envelope &e); |
fda5b6e0 JH |
94 | |
95 | void append_payload_to_envelope_levels(); | |
96 | ||
97 | private: | |
7db61e77 SA |
98 | Analog& owner_; |
99 | ||
8dbbc7f0 | 100 | struct Envelope envelope_levels_[ScaleStepCount]; |
340bc0a4 | 101 | |
73e377fe SA |
102 | float min_value_, max_value_; |
103 | ||
f3d66e52 | 104 | friend struct AnalogSegmentTest::Basic; |
340bc0a4 JH |
105 | }; |
106 | ||
1b1ec774 | 107 | } // namespace data |
aba1dd16 JH |
108 | } // namespace pv |
109 | ||
a38268f0 | 110 | #endif // PULSEVIEW_PV_DATA_ANALOGSEGMENT_HPP |