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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 | #ifdef ENABLE_FLOW | |
24 | #include <atomic> | |
25 | #include <condition_variable> | |
26 | #endif | |
27 | ||
28 | #include <functional> | |
29 | #include <map> | |
30 | #include <memory> | |
31 | #include <mutex> | |
32 | #include <set> | |
33 | #include <string> | |
34 | #include <thread> | |
35 | #include <unordered_set> | |
36 | #include <vector> | |
37 | ||
38 | #include <QObject> | |
39 | #include <QSettings> | |
40 | #include <QString> | |
41 | #include <QElapsedTimer> | |
42 | ||
43 | #ifdef ENABLE_FLOW | |
44 | #include <gstreamermm.h> | |
45 | #include <libsigrokflow/libsigrokflow.hpp> | |
46 | #endif | |
47 | ||
48 | #include "util.hpp" | |
49 | #include "views/viewbase.hpp" | |
50 | ||
51 | ||
52 | using std::function; | |
53 | using std::list; | |
54 | using std::map; | |
55 | using std::mutex; | |
56 | using std::recursive_mutex; | |
57 | using std::shared_ptr; | |
58 | using std::string; | |
59 | using std::unordered_set; | |
60 | ||
61 | #ifdef ENABLE_FLOW | |
62 | using Glib::RefPtr; | |
63 | using Gst::AppSink; | |
64 | using Gst::Element; | |
65 | using Gst::Pipeline; | |
66 | #endif | |
67 | ||
68 | struct srd_decoder; | |
69 | struct srd_channel; | |
70 | ||
71 | namespace sigrok { | |
72 | class Analog; | |
73 | class Channel; | |
74 | class Device; | |
75 | class InputFormat; | |
76 | class Logic; | |
77 | class Meta; | |
78 | class Option; | |
79 | class OutputFormat; | |
80 | class Packet; | |
81 | class Session; | |
82 | } // namespace sigrok | |
83 | ||
84 | using sigrok::Option; | |
85 | ||
86 | namespace pv { | |
87 | ||
88 | class DeviceManager; | |
89 | ||
90 | namespace data { | |
91 | class Analog; | |
92 | class AnalogSegment; | |
93 | class DecodeSignal; | |
94 | class Logic; | |
95 | class LogicSegment; | |
96 | class SignalBase; | |
97 | class SignalData; | |
98 | } | |
99 | ||
100 | namespace devices { | |
101 | class Device; | |
102 | } | |
103 | ||
104 | namespace toolbars { | |
105 | class MainBar; | |
106 | } | |
107 | ||
108 | namespace views { | |
109 | class ViewBase; | |
110 | } | |
111 | ||
112 | class Session : public QObject | |
113 | { | |
114 | Q_OBJECT | |
115 | ||
116 | public: | |
117 | enum capture_state { | |
118 | Stopped, | |
119 | AwaitingTrigger, | |
120 | Running | |
121 | }; | |
122 | ||
123 | static shared_ptr<sigrok::Context> sr_context; | |
124 | ||
125 | public: | |
126 | Session(DeviceManager &device_manager, QString name); | |
127 | ||
128 | ~Session(); | |
129 | ||
130 | DeviceManager& device_manager(); | |
131 | ||
132 | const DeviceManager& device_manager() const; | |
133 | ||
134 | shared_ptr<sigrok::Session> session() const; | |
135 | ||
136 | shared_ptr<devices::Device> device() const; | |
137 | ||
138 | QString name() const; | |
139 | ||
140 | void set_name(QString name); | |
141 | ||
142 | const list< shared_ptr<views::ViewBase> > views() const; | |
143 | ||
144 | shared_ptr<views::ViewBase> main_view() const; | |
145 | ||
146 | shared_ptr<pv::toolbars::MainBar> main_bar() const; | |
147 | ||
148 | void set_main_bar(shared_ptr<pv::toolbars::MainBar> main_bar); | |
149 | ||
150 | /** | |
151 | * Indicates whether the captured data was saved to disk already or not | |
152 | */ | |
153 | bool data_saved() const; | |
154 | ||
155 | void save_setup(QSettings &settings) const; | |
156 | ||
157 | void save_settings(QSettings &settings) const; | |
158 | ||
159 | void restore_setup(QSettings &settings); | |
160 | ||
161 | void restore_settings(QSettings &settings); | |
162 | ||
163 | /** | |
164 | * Attempts to set device instance, may fall back to demo if needed | |
165 | */ | |
166 | void select_device(shared_ptr<devices::Device> device); | |
167 | ||
168 | /** | |
169 | * Sets device instance that will be used in the next capture session. | |
170 | */ | |
171 | void set_device(shared_ptr<devices::Device> device); | |
172 | ||
173 | void set_default_device(); | |
174 | ||
175 | void load_init_file(const string &file_name, const string &format, | |
176 | const string &setup_file_name); | |
177 | ||
178 | void load_file(QString file_name, QString setup_file_name = QString(), | |
179 | shared_ptr<sigrok::InputFormat> format = nullptr, | |
180 | const map<string, Glib::VariantBase> &options = | |
181 | map<string, Glib::VariantBase>()); | |
182 | ||
183 | capture_state get_capture_state() const; | |
184 | ||
185 | void start_capture(function<void (const QString)> error_handler); | |
186 | ||
187 | void stop_capture(); | |
188 | ||
189 | double get_samplerate() const; | |
190 | ||
191 | uint32_t get_segment_count() const; | |
192 | ||
193 | vector<util::Timestamp> get_triggers(uint32_t segment_id) const; | |
194 | ||
195 | void register_view(shared_ptr<views::ViewBase> view); | |
196 | ||
197 | void deregister_view(shared_ptr<views::ViewBase> view); | |
198 | ||
199 | bool has_view(shared_ptr<views::ViewBase> view); | |
200 | ||
201 | const unordered_set< shared_ptr<data::SignalBase> > signalbases() const; | |
202 | ||
203 | bool all_segments_complete(uint32_t segment_id) const; | |
204 | ||
205 | #ifdef ENABLE_DECODE | |
206 | shared_ptr<data::DecodeSignal> add_decode_signal(); | |
207 | ||
208 | void remove_decode_signal(shared_ptr<data::DecodeSignal> signal); | |
209 | #endif | |
210 | ||
211 | private: | |
212 | void set_capture_state(capture_state state); | |
213 | ||
214 | void update_signals(); | |
215 | ||
216 | shared_ptr<data::SignalBase> signalbase_from_channel( | |
217 | shared_ptr<sigrok::Channel> channel) const; | |
218 | ||
219 | static map<string, Glib::VariantBase> input_format_options( | |
220 | vector<string> user_spec, | |
221 | map<string, shared_ptr<Option>> fmt_opts); | |
222 | ||
223 | void sample_thread_proc(function<void (const QString)> error_handler); | |
224 | ||
225 | void free_unused_memory(); | |
226 | ||
227 | void signal_new_segment(); | |
228 | void signal_segment_completed(); | |
229 | ||
230 | #ifdef ENABLE_FLOW | |
231 | bool on_gst_bus_message(const Glib::RefPtr<Gst::Bus>& bus, const Glib::RefPtr<Gst::Message>& message); | |
232 | ||
233 | Gst::FlowReturn on_gst_new_sample(); | |
234 | #endif | |
235 | ||
236 | void feed_in_header(); | |
237 | ||
238 | void feed_in_meta(shared_ptr<sigrok::Meta> meta); | |
239 | ||
240 | void feed_in_trigger(); | |
241 | ||
242 | void feed_in_frame_begin(); | |
243 | void feed_in_frame_end(); | |
244 | ||
245 | void feed_in_logic(shared_ptr<sigrok::Logic> logic); | |
246 | ||
247 | void feed_in_analog(shared_ptr<sigrok::Analog> analog); | |
248 | ||
249 | void data_feed_in(shared_ptr<sigrok::Device> device, | |
250 | shared_ptr<sigrok::Packet> packet); | |
251 | ||
252 | Q_SIGNALS: | |
253 | void capture_state_changed(int state); | |
254 | void device_changed(); | |
255 | ||
256 | void signals_changed(); | |
257 | ||
258 | void name_changed(); | |
259 | ||
260 | void trigger_event(int segment_id, util::Timestamp location); | |
261 | ||
262 | void new_segment(int new_segment_id); | |
263 | void segment_completed(int segment_id); | |
264 | ||
265 | void data_received(); | |
266 | ||
267 | void add_view(views::ViewType type, Session *session); | |
268 | ||
269 | public Q_SLOTS: | |
270 | void on_data_saved(); | |
271 | ||
272 | #ifdef ENABLE_DECODE | |
273 | void on_new_decoders_selected(vector<const srd_decoder*> decoders); | |
274 | #endif | |
275 | ||
276 | private: | |
277 | DeviceManager &device_manager_; | |
278 | shared_ptr<devices::Device> device_; | |
279 | QString default_name_, name_; | |
280 | ||
281 | list< shared_ptr<views::ViewBase> > views_; | |
282 | shared_ptr<pv::views::ViewBase> main_view_; | |
283 | ||
284 | shared_ptr<pv::toolbars::MainBar> main_bar_; | |
285 | ||
286 | mutable mutex sampling_mutex_; //!< Protects access to capture_state_. | |
287 | capture_state capture_state_; | |
288 | ||
289 | unordered_set< shared_ptr<data::SignalBase> > signalbases_; | |
290 | unordered_set< shared_ptr<data::SignalData> > all_signal_data_; | |
291 | ||
292 | /// trigger_list_ contains pairs of <segment_id, timestamp> values. | |
293 | vector< std::pair<uint32_t, util::Timestamp> > trigger_list_; | |
294 | ||
295 | mutable recursive_mutex data_mutex_; | |
296 | shared_ptr<data::Logic> logic_data_; | |
297 | uint64_t cur_samplerate_; | |
298 | shared_ptr<data::LogicSegment> cur_logic_segment_; | |
299 | map< shared_ptr<sigrok::Channel>, shared_ptr<data::AnalogSegment> > | |
300 | cur_analog_segments_; | |
301 | int32_t highest_segment_id_; | |
302 | ||
303 | std::thread sampling_thread_; | |
304 | ||
305 | bool out_of_memory_; | |
306 | bool data_saved_; | |
307 | bool frame_began_; | |
308 | ||
309 | QElapsedTimer acq_time_; | |
310 | ||
311 | #ifdef ENABLE_FLOW | |
312 | RefPtr<Pipeline> pipeline_; | |
313 | RefPtr<Element> source_; | |
314 | RefPtr<AppSink> sink_; | |
315 | ||
316 | mutable mutex pipeline_done_mutex_; | |
317 | mutable condition_variable pipeline_done_cond_; | |
318 | atomic<bool> pipeline_done_interrupt_; | |
319 | #endif | |
320 | }; | |
321 | ||
322 | } // namespace pv | |
323 | ||
324 | #endif // PULSEVIEW_PV_SESSION_HPP |