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1 | /* | |
2 | * This file is part of the PulseView project. | |
3 | * | |
4 | * Copyright (C) 2012-14 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, see <http://www.gnu.org/licenses/>. | |
18 | */ | |
19 | ||
20 | #ifndef PULSEVIEW_PV_SESSION_HPP | |
21 | #define PULSEVIEW_PV_SESSION_HPP | |
22 | ||
23 | #include <map> | |
24 | #include <memory> | |
25 | #include <mutex> | |
26 | #include <set> | |
27 | #include <string> | |
28 | #include <thread> | |
29 | #include <unordered_set> | |
30 | #include <vector> | |
31 | ||
32 | #ifdef _WIN32 | |
33 | // Windows: Avoid boost/thread namespace pollution (which includes windows.h). | |
34 | #define NOGDI | |
35 | #define NORESOURCE | |
36 | #endif | |
37 | ||
38 | #include <QObject> | |
39 | #include <QSettings> | |
40 | #include <QString> | |
41 | ||
42 | #include "util.hpp" | |
43 | #include "views/viewbase.hpp" | |
44 | ||
45 | using std::function; | |
46 | using std::list; | |
47 | using std::map; | |
48 | using std::mutex; | |
49 | using std::recursive_mutex; | |
50 | using std::shared_ptr; | |
51 | using std::string; | |
52 | using std::unordered_set; | |
53 | ||
54 | struct srd_decoder; | |
55 | struct srd_channel; | |
56 | ||
57 | namespace sigrok { | |
58 | class Analog; | |
59 | class Channel; | |
60 | class Device; | |
61 | class InputFormat; | |
62 | class Logic; | |
63 | class Meta; | |
64 | class OutputFormat; | |
65 | class Packet; | |
66 | class Session; | |
67 | } | |
68 | ||
69 | namespace pv { | |
70 | ||
71 | class DeviceManager; | |
72 | ||
73 | namespace data { | |
74 | class Analog; | |
75 | class AnalogSegment; | |
76 | class Logic; | |
77 | class LogicSegment; | |
78 | class SignalBase; | |
79 | class SignalData; | |
80 | } | |
81 | ||
82 | namespace devices { | |
83 | class Device; | |
84 | } | |
85 | ||
86 | namespace toolbars { | |
87 | class MainBar; | |
88 | } | |
89 | ||
90 | namespace views { | |
91 | class ViewBase; | |
92 | } | |
93 | ||
94 | class Session : public QObject | |
95 | { | |
96 | Q_OBJECT | |
97 | ||
98 | public: | |
99 | enum capture_state { | |
100 | Stopped, | |
101 | AwaitingTrigger, | |
102 | Running | |
103 | }; | |
104 | ||
105 | public: | |
106 | Session(DeviceManager &device_manager, QString name); | |
107 | ||
108 | ~Session(); | |
109 | ||
110 | DeviceManager& device_manager(); | |
111 | ||
112 | const DeviceManager& device_manager() const; | |
113 | ||
114 | shared_ptr<sigrok::Session> session() const; | |
115 | ||
116 | shared_ptr<devices::Device> device() const; | |
117 | ||
118 | QString name() const; | |
119 | ||
120 | void set_name(QString name); | |
121 | ||
122 | const list< shared_ptr<views::ViewBase> > views() const; | |
123 | ||
124 | shared_ptr<views::ViewBase> main_view() const; | |
125 | ||
126 | shared_ptr<pv::toolbars::MainBar> main_bar() const; | |
127 | ||
128 | void set_main_bar(shared_ptr<pv::toolbars::MainBar> main_bar); | |
129 | ||
130 | /** | |
131 | * Indicates whether the captured data was saved to disk already or not | |
132 | */ | |
133 | bool data_saved() const; | |
134 | ||
135 | void save_settings(QSettings &settings) const; | |
136 | ||
137 | void restore_settings(QSettings &settings); | |
138 | ||
139 | /** | |
140 | * Attempts to set device instance, may fall back to demo if needed | |
141 | */ | |
142 | void select_device(shared_ptr<devices::Device> device); | |
143 | ||
144 | /** | |
145 | * Sets device instance that will be used in the next capture session. | |
146 | */ | |
147 | void set_device(shared_ptr<devices::Device> device); | |
148 | ||
149 | void set_default_device(); | |
150 | ||
151 | void load_init_file(const string &file_name, const string &format); | |
152 | ||
153 | void load_file(QString file_name, | |
154 | shared_ptr<sigrok::InputFormat> format = nullptr, | |
155 | const map<string, Glib::VariantBase> &options = | |
156 | map<string, Glib::VariantBase>()); | |
157 | ||
158 | capture_state get_capture_state() const; | |
159 | ||
160 | void start_capture(function<void (const QString)> error_handler); | |
161 | ||
162 | void stop_capture(); | |
163 | ||
164 | double get_samplerate() const; | |
165 | ||
166 | void register_view(shared_ptr<views::ViewBase> view); | |
167 | ||
168 | void deregister_view(shared_ptr<views::ViewBase> view); | |
169 | ||
170 | bool has_view(shared_ptr<views::ViewBase> view); | |
171 | ||
172 | const unordered_set< shared_ptr<data::SignalBase> > | |
173 | signalbases() const; | |
174 | ||
175 | #ifdef ENABLE_DECODE | |
176 | bool add_decoder(srd_decoder *const dec); | |
177 | ||
178 | void remove_decode_signal(shared_ptr<data::SignalBase> signalbase); | |
179 | #endif | |
180 | ||
181 | private: | |
182 | void set_capture_state(capture_state state); | |
183 | ||
184 | void update_signals(); | |
185 | ||
186 | shared_ptr<data::SignalBase> signalbase_from_channel( | |
187 | shared_ptr<sigrok::Channel> channel) const; | |
188 | ||
189 | private: | |
190 | void sample_thread_proc(function<void (const QString)> error_handler); | |
191 | ||
192 | void free_unused_memory(); | |
193 | ||
194 | void feed_in_header(); | |
195 | ||
196 | void feed_in_meta(shared_ptr<sigrok::Meta> meta); | |
197 | ||
198 | void feed_in_trigger(); | |
199 | ||
200 | void feed_in_frame_begin(); | |
201 | ||
202 | void feed_in_logic(shared_ptr<sigrok::Logic> logic); | |
203 | ||
204 | void feed_in_analog(shared_ptr<sigrok::Analog> analog); | |
205 | ||
206 | void data_feed_in(shared_ptr<sigrok::Device> device, | |
207 | shared_ptr<sigrok::Packet> packet); | |
208 | ||
209 | private: | |
210 | DeviceManager &device_manager_; | |
211 | shared_ptr<devices::Device> device_; | |
212 | QString default_name_, name_; | |
213 | ||
214 | list< shared_ptr<views::ViewBase> > views_; | |
215 | shared_ptr<pv::views::ViewBase> main_view_; | |
216 | ||
217 | shared_ptr<pv::toolbars::MainBar> main_bar_; | |
218 | ||
219 | mutable mutex sampling_mutex_; //!< Protects access to capture_state_. | |
220 | capture_state capture_state_; | |
221 | ||
222 | unordered_set< shared_ptr<data::SignalBase> > signalbases_; | |
223 | unordered_set< shared_ptr<data::SignalData> > all_signal_data_; | |
224 | ||
225 | mutable recursive_mutex data_mutex_; | |
226 | shared_ptr<data::Logic> logic_data_; | |
227 | uint64_t cur_samplerate_; | |
228 | shared_ptr<data::LogicSegment> cur_logic_segment_; | |
229 | map< shared_ptr<sigrok::Channel>, shared_ptr<data::AnalogSegment> > | |
230 | cur_analog_segments_; | |
231 | ||
232 | std::thread sampling_thread_; | |
233 | ||
234 | bool out_of_memory_; | |
235 | bool data_saved_; | |
236 | ||
237 | Q_SIGNALS: | |
238 | void capture_state_changed(int state); | |
239 | void device_changed(); | |
240 | ||
241 | void signals_changed(); | |
242 | ||
243 | void name_changed(); | |
244 | ||
245 | void trigger_event(util::Timestamp location); | |
246 | ||
247 | void frame_began(); | |
248 | ||
249 | void data_received(); | |
250 | ||
251 | void frame_ended(); | |
252 | ||
253 | void add_view(const QString &title, views::ViewType type, | |
254 | Session *session); | |
255 | ||
256 | public Q_SLOTS: | |
257 | void on_data_saved(); | |
258 | }; | |
259 | ||
260 | } // namespace pv | |
261 | ||
262 | #endif // PULSEVIEW_PV_SESSION_HPP |