]>
Commit | Line | Data |
---|---|---|
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 | |
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 | ||
21 | #ifndef PULSEVIEW_PV_DATA_DECODERSTACK_H | |
22 | #define PULSEVIEW_PV_DATA_DECODERSTACK_H | |
23 | ||
24 | #include "signaldata.h" | |
25 | ||
26 | #include <list> | |
27 | #include <memory> | |
28 | ||
29 | #include <boost/optional.hpp> | |
30 | #include <boost/thread.hpp> | |
31 | ||
32 | #include <QObject> | |
33 | #include <QString> | |
34 | ||
35 | #include <pv/data/decode/row.h> | |
36 | #include <pv/data/decode/rowdata.h> | |
37 | ||
38 | struct srd_decoder; | |
39 | struct srd_decoder_annotation_row; | |
40 | struct srd_channel; | |
41 | struct srd_proto_data; | |
42 | struct srd_session; | |
43 | ||
44 | namespace DecoderStackTest { | |
45 | class TwoDecoderStack; | |
46 | } | |
47 | ||
48 | namespace pv { | |
49 | ||
50 | class SigSession; | |
51 | ||
52 | namespace view { | |
53 | class LogicSignal; | |
54 | } | |
55 | ||
56 | namespace data { | |
57 | ||
58 | class LogicSnapshot; | |
59 | ||
60 | namespace decode { | |
61 | class Annotation; | |
62 | class Decoder; | |
63 | } | |
64 | ||
65 | class Logic; | |
66 | ||
67 | class DecoderStack : public QObject, public SignalData | |
68 | { | |
69 | Q_OBJECT | |
70 | ||
71 | private: | |
72 | static const double DecodeMargin; | |
73 | static const double DecodeThreshold; | |
74 | static const int64_t DecodeChunkLength; | |
75 | static const unsigned int DecodeNotifyPeriod; | |
76 | ||
77 | public: | |
78 | DecoderStack(pv::SigSession &_session, | |
79 | const srd_decoder *const decoder); | |
80 | ||
81 | virtual ~DecoderStack(); | |
82 | ||
83 | const std::list< std::shared_ptr<decode::Decoder> >& stack() const; | |
84 | void push(std::shared_ptr<decode::Decoder> decoder); | |
85 | void remove(int index); | |
86 | ||
87 | int64_t samples_decoded() const; | |
88 | ||
89 | std::vector<decode::Row> get_visible_rows() const; | |
90 | ||
91 | /** | |
92 | * Extracts sorted annotations between two period into a vector. | |
93 | */ | |
94 | void get_annotation_subset( | |
95 | std::vector<pv::data::decode::Annotation> &dest, | |
96 | const decode::Row &row, uint64_t start_sample, | |
97 | uint64_t end_sample) const; | |
98 | ||
99 | QString error_message(); | |
100 | ||
101 | void clear(); | |
102 | ||
103 | uint64_t get_max_sample_count() const; | |
104 | ||
105 | void begin_decode(); | |
106 | ||
107 | private: | |
108 | boost::optional<int64_t> wait_for_data() const; | |
109 | ||
110 | void decode_data(const int64_t sample_count, | |
111 | const unsigned int unit_size, srd_session *const session); | |
112 | ||
113 | void decode_proc(); | |
114 | ||
115 | static void annotation_callback(srd_proto_data *pdata, | |
116 | void *decoder); | |
117 | ||
118 | private slots: | |
119 | void on_new_frame(); | |
120 | ||
121 | void on_data_received(); | |
122 | ||
123 | void on_frame_ended(); | |
124 | ||
125 | signals: | |
126 | void new_decode_data(); | |
127 | ||
128 | private: | |
129 | pv::SigSession &_session; | |
130 | ||
131 | /** | |
132 | * This mutex prevents more than one decode operation occuring | |
133 | * concurrently. | |
134 | * @todo A proper solution should be implemented to allow multiple | |
135 | * decode operations. | |
136 | */ | |
137 | static boost::mutex _global_decode_mutex; | |
138 | ||
139 | std::list< std::shared_ptr<decode::Decoder> > _stack; | |
140 | ||
141 | std::shared_ptr<pv::data::LogicSnapshot> _snapshot; | |
142 | ||
143 | mutable boost::mutex _input_mutex; | |
144 | mutable boost::condition_variable _input_cond; | |
145 | int64_t _sample_count; | |
146 | bool _frame_complete; | |
147 | ||
148 | mutable boost::mutex _output_mutex; | |
149 | int64_t _samples_decoded; | |
150 | ||
151 | std::map<const decode::Row, decode::RowData> _rows; | |
152 | ||
153 | std::map<std::pair<const srd_decoder*, int>, decode::Row> _class_rows; | |
154 | ||
155 | QString _error_message; | |
156 | ||
157 | boost::thread _decode_thread; | |
158 | ||
159 | friend class DecoderStackTest::TwoDecoderStack; | |
160 | }; | |
161 | ||
162 | } // namespace data | |
163 | } // namespace pv | |
164 | ||
165 | #endif // PULSEVIEW_PV_DATA_DECODERSTACK_H |