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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 <deque> | |
29 | #include <functional> | |
30 | #include <map> | |
31 | #include <memory> | |
32 | #include <mutex> | |
33 | #include <set> | |
34 | #include <string> | |
35 | #include <thread> | |
36 | #include <vector> | |
37 | ||
38 | #include <glibmm/datetime.h> | |
39 | ||
40 | #include <QObject> | |
41 | #include <QSettings> | |
42 | #include <QString> | |
43 | #include <QElapsedTimer> | |
44 | ||
45 | #ifdef ENABLE_FLOW | |
46 | #include <gstreamermm.h> | |
47 | #include <libsigrokflow/libsigrokflow.hpp> | |
48 | #endif | |
49 | ||
50 | #include "metadata_obj.hpp" | |
51 | #include "util.hpp" | |
52 | #include "views/viewbase.hpp" | |
53 | ||
54 | using std::deque; | |
55 | using std::function; | |
56 | using std::map; | |
57 | using std::mutex; | |
58 | using std::recursive_mutex; | |
59 | using std::shared_ptr; | |
60 | using std::string; | |
61 | using std::unordered_set; | |
62 | ||
63 | #ifdef ENABLE_FLOW | |
64 | using Glib::RefPtr; | |
65 | using Gst::AppSink; | |
66 | using Gst::Element; | |
67 | using Gst::Pipeline; | |
68 | #endif | |
69 | ||
70 | struct srd_decoder; | |
71 | struct srd_channel; | |
72 | ||
73 | namespace sigrok { | |
74 | class Analog; | |
75 | class Channel; | |
76 | class Device; | |
77 | class InputFormat; | |
78 | class Logic; | |
79 | class Meta; | |
80 | class Option; | |
81 | class OutputFormat; | |
82 | class Packet; | |
83 | class Session; | |
84 | } // namespace sigrok | |
85 | ||
86 | using sigrok::Option; | |
87 | ||
88 | namespace pv { | |
89 | ||
90 | class DeviceManager; | |
91 | ||
92 | namespace data { | |
93 | class Analog; | |
94 | class AnalogSegment; | |
95 | class DecodeSignal; | |
96 | class Logic; | |
97 | class LogicSegment; | |
98 | class SignalBase; | |
99 | class SignalData; | |
100 | class SignalGroup; | |
101 | } | |
102 | ||
103 | namespace devices { | |
104 | class Device; | |
105 | } | |
106 | ||
107 | namespace toolbars { | |
108 | class MainBar; | |
109 | } | |
110 | ||
111 | namespace views { | |
112 | class ViewBase; | |
113 | } | |
114 | ||
115 | using pv::views::ViewType; | |
116 | ||
117 | class Session : public QObject | |
118 | { | |
119 | Q_OBJECT | |
120 | ||
121 | public: | |
122 | enum capture_state { | |
123 | Stopped, | |
124 | AwaitingTrigger, | |
125 | Running | |
126 | }; | |
127 | ||
128 | static shared_ptr<sigrok::Context> sr_context; | |
129 | ||
130 | public: | |
131 | Session(DeviceManager &device_manager, QString name); | |
132 | ||
133 | ~Session(); | |
134 | ||
135 | DeviceManager& device_manager(); | |
136 | ||
137 | const DeviceManager& device_manager() const; | |
138 | ||
139 | shared_ptr<sigrok::Session> session() const; | |
140 | ||
141 | shared_ptr<devices::Device> device() const; | |
142 | ||
143 | QString name() const; | |
144 | void set_name(QString name); | |
145 | ||
146 | QString save_path() const; | |
147 | void set_save_path(QString path); | |
148 | ||
149 | const vector< shared_ptr<views::ViewBase> > views() const; | |
150 | ||
151 | shared_ptr<views::ViewBase> main_view() const; | |
152 | shared_ptr<pv::toolbars::MainBar> main_bar() const; | |
153 | void set_main_bar(shared_ptr<pv::toolbars::MainBar> main_bar); | |
154 | ||
155 | /** | |
156 | * Indicates whether the captured data was saved to disk already or not | |
157 | */ | |
158 | bool data_saved() const; | |
159 | ||
160 | void save_setup(QSettings &settings) const; | |
161 | void save_settings(QSettings &settings) const; | |
162 | void restore_setup(QSettings &settings); | |
163 | void restore_settings(QSettings &settings); | |
164 | ||
165 | /** | |
166 | * Attempts to set device instance, may fall back to demo if needed | |
167 | */ | |
168 | void select_device(shared_ptr<devices::Device> device); | |
169 | ||
170 | /** | |
171 | * Sets device instance that will be used in the next capture session. | |
172 | */ | |
173 | void set_device(shared_ptr<devices::Device> device); | |
174 | void set_default_device(); | |
175 | bool using_file_device() const; | |
176 | ||
177 | void load_init_file(const string &file_name, const string &format, | |
178 | const string &setup_file_name); | |
179 | ||
180 | void load_file(QString file_name, QString setup_file_name = QString(), | |
181 | shared_ptr<sigrok::InputFormat> format = nullptr, | |
182 | const map<string, Glib::VariantBase> &options = | |
183 | map<string, Glib::VariantBase>()); | |
184 | ||
185 | capture_state get_capture_state() const; | |
186 | void start_capture(function<void (const QString)> error_handler); | |
187 | void stop_capture(); | |
188 | ||
189 | double get_samplerate() const; | |
190 | Glib::DateTime get_acquisition_start_time() const; | |
191 | ||
192 | uint32_t get_highest_segment_id() const; | |
193 | uint64_t get_segment_sample_count(uint32_t segment_id) const; | |
194 | ||
195 | vector<util::Timestamp> get_triggers(uint32_t segment_id) const; | |
196 | ||
197 | void register_view(shared_ptr<views::ViewBase> view); | |
198 | void deregister_view(shared_ptr<views::ViewBase> view); | |
199 | bool has_view(shared_ptr<views::ViewBase> view); | |
200 | ||
201 | const vector< shared_ptr<data::SignalBase> > signalbases() const; | |
202 | uint32_t get_signal_count(data::SignalBase::ChannelType type) const; | |
203 | uint32_t get_next_signal_index(data::SignalBase::ChannelType type); | |
204 | ||
205 | void add_generated_signal(shared_ptr<data::SignalBase> signal); | |
206 | void remove_generated_signal(shared_ptr<data::SignalBase> signal); | |
207 | ||
208 | #ifdef ENABLE_DECODE | |
209 | shared_ptr<data::DecodeSignal> add_decode_signal(); | |
210 | ||
211 | void remove_decode_signal(shared_ptr<data::DecodeSignal> signal); | |
212 | #endif | |
213 | ||
214 | bool all_segments_complete(uint32_t segment_id) const; | |
215 | ||
216 | MetadataObjManager* metadata_obj_manager(); | |
217 | ||
218 | private: | |
219 | void set_capture_state(capture_state state); | |
220 | ||
221 | void update_signals(); | |
222 | ||
223 | shared_ptr<data::SignalBase> signalbase_from_channel( | |
224 | shared_ptr<sigrok::Channel> channel) const; | |
225 | ||
226 | static map<string, Glib::VariantBase> input_format_options( | |
227 | vector<string> user_spec, | |
228 | map<string, shared_ptr<Option>> fmt_opts); | |
229 | ||
230 | void sample_thread_proc(function<void (const QString)> error_handler); | |
231 | ||
232 | void free_unused_memory(); | |
233 | ||
234 | void signal_new_segment(); | |
235 | void signal_segment_completed(); | |
236 | ||
237 | #ifdef ENABLE_FLOW | |
238 | bool on_gst_bus_message(const Glib::RefPtr<Gst::Bus>& bus, const Glib::RefPtr<Gst::Message>& message); | |
239 | ||
240 | Gst::FlowReturn on_gst_new_sample(); | |
241 | #endif | |
242 | ||
243 | void feed_in_header(); | |
244 | void feed_in_meta(shared_ptr<sigrok::Meta> meta); | |
245 | void feed_in_trigger(); | |
246 | void feed_in_frame_begin(); | |
247 | void feed_in_frame_end(); | |
248 | void feed_in_logic(shared_ptr<sigrok::Logic> logic); | |
249 | void feed_in_analog(shared_ptr<sigrok::Analog> analog); | |
250 | ||
251 | void data_feed_in(shared_ptr<sigrok::Device> device, | |
252 | shared_ptr<sigrok::Packet> packet); | |
253 | ||
254 | Q_SIGNALS: | |
255 | void capture_state_changed(int state); | |
256 | void device_changed(); | |
257 | ||
258 | void signals_changed(); | |
259 | ||
260 | void name_changed(); | |
261 | ||
262 | void trigger_event(int segment_id, util::Timestamp location); | |
263 | ||
264 | void new_segment(int new_segment_id); | |
265 | void segment_completed(int segment_id); | |
266 | ||
267 | void data_received(); | |
268 | ||
269 | void add_view(ViewType type, Session *session); | |
270 | void session_error_raised(const QString text, const QString info_text); | |
271 | ||
272 | public Q_SLOTS: | |
273 | void on_data_saved(); | |
274 | ||
275 | #ifdef ENABLE_DECODE | |
276 | void on_new_decoders_selected(vector<const srd_decoder*> decoders); | |
277 | #endif | |
278 | ||
279 | private: | |
280 | bool shutting_down_; | |
281 | ||
282 | DeviceManager &device_manager_; | |
283 | shared_ptr<devices::Device> device_; | |
284 | QString default_name_, name_, save_path_; | |
285 | ||
286 | vector< shared_ptr<views::ViewBase> > views_; | |
287 | shared_ptr<pv::views::ViewBase> main_view_; | |
288 | ||
289 | shared_ptr<pv::toolbars::MainBar> main_bar_; | |
290 | ||
291 | mutable mutex sampling_mutex_; //!< Protects access to capture_state_ | |
292 | capture_state capture_state_; | |
293 | ||
294 | vector< shared_ptr<data::SignalBase> > signalbases_; | |
295 | unordered_set< shared_ptr<data::SignalData> > all_signal_data_; | |
296 | deque<data::SignalGroup*> signal_groups_; | |
297 | map<uint8_t, uint32_t> next_index_list_; // signal type -> index counter | |
298 | ||
299 | /// trigger_list_ contains pairs of <segment_id, timestamp> values | |
300 | vector< std::pair<uint32_t, util::Timestamp> > trigger_list_; | |
301 | ||
302 | mutable recursive_mutex data_mutex_; | |
303 | shared_ptr<data::Logic> logic_data_; | |
304 | uint64_t cur_samplerate_; | |
305 | shared_ptr<data::LogicSegment> cur_logic_segment_; | |
306 | map< shared_ptr<sigrok::Channel>, shared_ptr<data::AnalogSegment> > | |
307 | cur_analog_segments_; | |
308 | int32_t highest_segment_id_; | |
309 | vector<uint64_t> segment_sample_count_; | |
310 | ||
311 | std::thread sampling_thread_; | |
312 | ||
313 | bool out_of_memory_; | |
314 | bool data_saved_; | |
315 | bool frame_began_; | |
316 | ||
317 | QElapsedTimer acq_time_; | |
318 | Glib::DateTime acq_start_time_; | |
319 | ||
320 | MetadataObjManager metadata_obj_manager_; | |
321 | ||
322 | #ifdef ENABLE_FLOW | |
323 | RefPtr<Pipeline> pipeline_; | |
324 | RefPtr<Element> source_; | |
325 | RefPtr<AppSink> sink_; | |
326 | ||
327 | mutable mutex pipeline_done_mutex_; | |
328 | mutable condition_variable pipeline_done_cond_; | |
329 | atomic<bool> pipeline_done_interrupt_; | |
330 | #endif | |
331 | }; | |
332 | ||
333 | } // namespace pv | |
334 | ||
335 | #endif // PULSEVIEW_PV_SESSION_HPP |