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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 | #include <QDebug> | |
21 | #include <QFileInfo> | |
22 | ||
23 | #include <cassert> | |
24 | #include <memory> | |
25 | #include <mutex> | |
26 | #include <stdexcept> | |
27 | ||
28 | #include <sys/stat.h> | |
29 | ||
30 | #include "devicemanager.hpp" | |
31 | #include "mainwindow.hpp" | |
32 | #include "session.hpp" | |
33 | ||
34 | #include "data/analog.hpp" | |
35 | #include "data/analogsegment.hpp" | |
36 | #include "data/decode/decoder.hpp" | |
37 | #include "data/logic.hpp" | |
38 | #include "data/logicsegment.hpp" | |
39 | #include "data/signalbase.hpp" | |
40 | ||
41 | #include "devices/hardwaredevice.hpp" | |
42 | #include "devices/inputfile.hpp" | |
43 | #include "devices/sessionfile.hpp" | |
44 | ||
45 | #include "toolbars/mainbar.hpp" | |
46 | ||
47 | #include "views/trace/analogsignal.hpp" | |
48 | #include "views/trace/decodetrace.hpp" | |
49 | #include "views/trace/logicsignal.hpp" | |
50 | #include "views/trace/signal.hpp" | |
51 | #include "views/trace/view.hpp" | |
52 | ||
53 | #include <libsigrokcxx/libsigrokcxx.hpp> | |
54 | ||
55 | #ifdef ENABLE_FLOW | |
56 | #include <gstreamermm.h> | |
57 | #include <libsigrokflow/libsigrokflow.hpp> | |
58 | #endif | |
59 | ||
60 | #ifdef ENABLE_DECODE | |
61 | #include <libsigrokdecode/libsigrokdecode.h> | |
62 | #include "data/decodesignal.hpp" | |
63 | #endif | |
64 | ||
65 | using std::bad_alloc; | |
66 | using std::dynamic_pointer_cast; | |
67 | using std::find_if; | |
68 | using std::function; | |
69 | using std::lock_guard; | |
70 | using std::list; | |
71 | using std::make_pair; | |
72 | using std::make_shared; | |
73 | using std::map; | |
74 | using std::max; | |
75 | using std::move; | |
76 | using std::mutex; | |
77 | using std::pair; | |
78 | using std::recursive_mutex; | |
79 | using std::runtime_error; | |
80 | using std::shared_ptr; | |
81 | using std::string; | |
82 | #ifdef ENABLE_FLOW | |
83 | using std::unique_lock; | |
84 | #endif | |
85 | using std::unique_ptr; | |
86 | using std::unordered_set; | |
87 | using std::vector; | |
88 | ||
89 | using sigrok::Analog; | |
90 | using sigrok::Channel; | |
91 | using sigrok::ConfigKey; | |
92 | using sigrok::DatafeedCallbackFunction; | |
93 | using sigrok::Error; | |
94 | using sigrok::InputFormat; | |
95 | using sigrok::Logic; | |
96 | using sigrok::Meta; | |
97 | using sigrok::Packet; | |
98 | using sigrok::Session; | |
99 | ||
100 | using Glib::VariantBase; | |
101 | ||
102 | #ifdef ENABLE_FLOW | |
103 | using Gst::Bus; | |
104 | using Gst::ElementFactory; | |
105 | using Gst::Pipeline; | |
106 | #endif | |
107 | ||
108 | namespace pv { | |
109 | ||
110 | shared_ptr<sigrok::Context> Session::sr_context; | |
111 | ||
112 | Session::Session(DeviceManager &device_manager, QString name) : | |
113 | device_manager_(device_manager), | |
114 | default_name_(name), | |
115 | name_(name), | |
116 | capture_state_(Stopped), | |
117 | cur_samplerate_(0), | |
118 | data_saved_(true) | |
119 | { | |
120 | } | |
121 | ||
122 | Session::~Session() | |
123 | { | |
124 | // Stop and join to the thread | |
125 | stop_capture(); | |
126 | } | |
127 | ||
128 | DeviceManager& Session::device_manager() | |
129 | { | |
130 | return device_manager_; | |
131 | } | |
132 | ||
133 | const DeviceManager& Session::device_manager() const | |
134 | { | |
135 | return device_manager_; | |
136 | } | |
137 | ||
138 | shared_ptr<sigrok::Session> Session::session() const | |
139 | { | |
140 | if (!device_) | |
141 | return shared_ptr<sigrok::Session>(); | |
142 | return device_->session(); | |
143 | } | |
144 | ||
145 | shared_ptr<devices::Device> Session::device() const | |
146 | { | |
147 | return device_; | |
148 | } | |
149 | ||
150 | QString Session::name() const | |
151 | { | |
152 | return name_; | |
153 | } | |
154 | ||
155 | void Session::set_name(QString name) | |
156 | { | |
157 | if (default_name_.isEmpty()) | |
158 | default_name_ = name; | |
159 | ||
160 | name_ = name; | |
161 | ||
162 | name_changed(); | |
163 | } | |
164 | ||
165 | const list< shared_ptr<views::ViewBase> > Session::views() const | |
166 | { | |
167 | return views_; | |
168 | } | |
169 | ||
170 | shared_ptr<views::ViewBase> Session::main_view() const | |
171 | { | |
172 | return main_view_; | |
173 | } | |
174 | ||
175 | void Session::set_main_bar(shared_ptr<pv::toolbars::MainBar> main_bar) | |
176 | { | |
177 | main_bar_ = main_bar; | |
178 | } | |
179 | ||
180 | shared_ptr<pv::toolbars::MainBar> Session::main_bar() const | |
181 | { | |
182 | return main_bar_; | |
183 | } | |
184 | ||
185 | bool Session::data_saved() const | |
186 | { | |
187 | return data_saved_; | |
188 | } | |
189 | ||
190 | void Session::save_settings(QSettings &settings) const | |
191 | { | |
192 | map<string, string> dev_info; | |
193 | list<string> key_list; | |
194 | int decode_signals = 0, views = 0; | |
195 | ||
196 | if (device_) { | |
197 | shared_ptr<devices::HardwareDevice> hw_device = | |
198 | dynamic_pointer_cast< devices::HardwareDevice >(device_); | |
199 | ||
200 | if (hw_device) { | |
201 | settings.setValue("device_type", "hardware"); | |
202 | settings.beginGroup("device"); | |
203 | ||
204 | key_list.emplace_back("vendor"); | |
205 | key_list.emplace_back("model"); | |
206 | key_list.emplace_back("version"); | |
207 | key_list.emplace_back("serial_num"); | |
208 | key_list.emplace_back("connection_id"); | |
209 | ||
210 | dev_info = device_manager_.get_device_info(device_); | |
211 | ||
212 | for (string& key : key_list) { | |
213 | if (dev_info.count(key)) | |
214 | settings.setValue(QString::fromUtf8(key.c_str()), | |
215 | QString::fromUtf8(dev_info.at(key).c_str())); | |
216 | else | |
217 | settings.remove(QString::fromUtf8(key.c_str())); | |
218 | } | |
219 | ||
220 | settings.endGroup(); | |
221 | } | |
222 | ||
223 | shared_ptr<devices::SessionFile> sessionfile_device = | |
224 | dynamic_pointer_cast<devices::SessionFile>(device_); | |
225 | ||
226 | if (sessionfile_device) { | |
227 | settings.setValue("device_type", "sessionfile"); | |
228 | settings.beginGroup("device"); | |
229 | settings.setValue("filename", QString::fromStdString( | |
230 | sessionfile_device->full_name())); | |
231 | settings.endGroup(); | |
232 | } | |
233 | ||
234 | shared_ptr<devices::InputFile> inputfile_device = | |
235 | dynamic_pointer_cast<devices::InputFile>(device_); | |
236 | ||
237 | if (inputfile_device) { | |
238 | settings.setValue("device_type", "inputfile"); | |
239 | settings.beginGroup("device"); | |
240 | inputfile_device->save_meta_to_settings(settings); | |
241 | settings.endGroup(); | |
242 | } | |
243 | ||
244 | // Save channels and decoders | |
245 | for (const shared_ptr<data::SignalBase>& base : signalbases_) { | |
246 | #ifdef ENABLE_DECODE | |
247 | if (base->is_decode_signal()) { | |
248 | settings.beginGroup("decode_signal" + QString::number(decode_signals++)); | |
249 | base->save_settings(settings); | |
250 | settings.endGroup(); | |
251 | } else | |
252 | #endif | |
253 | { | |
254 | settings.beginGroup(base->internal_name()); | |
255 | base->save_settings(settings); | |
256 | settings.endGroup(); | |
257 | } | |
258 | } | |
259 | ||
260 | settings.setValue("decode_signals", decode_signals); | |
261 | ||
262 | // Save view states and their signal settings | |
263 | // Note: main_view must be saved as view0 | |
264 | settings.beginGroup("view" + QString::number(views++)); | |
265 | main_view_->save_settings(settings); | |
266 | settings.endGroup(); | |
267 | ||
268 | for (const shared_ptr<views::ViewBase>& view : views_) { | |
269 | if (view != main_view_) { | |
270 | settings.beginGroup("view" + QString::number(views++)); | |
271 | view->save_settings(settings); | |
272 | settings.endGroup(); | |
273 | } | |
274 | } | |
275 | ||
276 | settings.setValue("views", views); | |
277 | } | |
278 | } | |
279 | ||
280 | void Session::restore_settings(QSettings &settings) | |
281 | { | |
282 | shared_ptr<devices::Device> device; | |
283 | ||
284 | QString device_type = settings.value("device_type").toString(); | |
285 | ||
286 | if (device_type == "hardware") { | |
287 | map<string, string> dev_info; | |
288 | list<string> key_list; | |
289 | ||
290 | // Re-select last used device if possible but only if it's not demo | |
291 | settings.beginGroup("device"); | |
292 | key_list.emplace_back("vendor"); | |
293 | key_list.emplace_back("model"); | |
294 | key_list.emplace_back("version"); | |
295 | key_list.emplace_back("serial_num"); | |
296 | key_list.emplace_back("connection_id"); | |
297 | ||
298 | for (string key : key_list) { | |
299 | const QString k = QString::fromStdString(key); | |
300 | if (!settings.contains(k)) | |
301 | continue; | |
302 | ||
303 | const string value = settings.value(k).toString().toStdString(); | |
304 | if (!value.empty()) | |
305 | dev_info.insert(make_pair(key, value)); | |
306 | } | |
307 | ||
308 | if (dev_info.count("model") > 0) | |
309 | device = device_manager_.find_device_from_info(dev_info); | |
310 | ||
311 | if (device) | |
312 | set_device(device); | |
313 | ||
314 | settings.endGroup(); | |
315 | } | |
316 | ||
317 | if ((device_type == "sessionfile") || (device_type == "inputfile")) { | |
318 | if (device_type == "sessionfile") { | |
319 | settings.beginGroup("device"); | |
320 | QString filename = settings.value("filename").toString(); | |
321 | settings.endGroup(); | |
322 | ||
323 | if (QFileInfo(filename).isReadable()) { | |
324 | device = make_shared<devices::SessionFile>(device_manager_.context(), | |
325 | filename.toStdString()); | |
326 | } | |
327 | } | |
328 | ||
329 | if (device_type == "inputfile") { | |
330 | settings.beginGroup("device"); | |
331 | device = make_shared<devices::InputFile>(device_manager_.context(), | |
332 | settings); | |
333 | settings.endGroup(); | |
334 | } | |
335 | ||
336 | if (device) { | |
337 | set_device(device); | |
338 | ||
339 | start_capture([](QString infoMessage) { | |
340 | // TODO Emulate noquote() | |
341 | qDebug() << "Session error:" << infoMessage; }); | |
342 | ||
343 | set_name(QString::fromStdString( | |
344 | dynamic_pointer_cast<devices::File>(device)->display_name(device_manager_))); | |
345 | } | |
346 | } | |
347 | ||
348 | if (device) { | |
349 | // Restore channels | |
350 | for (shared_ptr<data::SignalBase> base : signalbases_) { | |
351 | settings.beginGroup(base->internal_name()); | |
352 | base->restore_settings(settings); | |
353 | settings.endGroup(); | |
354 | } | |
355 | ||
356 | // Restore decoders | |
357 | #ifdef ENABLE_DECODE | |
358 | int decode_signals = settings.value("decode_signals").toInt(); | |
359 | ||
360 | for (int i = 0; i < decode_signals; i++) { | |
361 | settings.beginGroup("decode_signal" + QString::number(i)); | |
362 | shared_ptr<data::DecodeSignal> signal = add_decode_signal(); | |
363 | signal->restore_settings(settings); | |
364 | settings.endGroup(); | |
365 | } | |
366 | #endif | |
367 | ||
368 | // Restore views | |
369 | int views = settings.value("views").toInt(); | |
370 | ||
371 | for (int i = 0; i < views; i++) { | |
372 | settings.beginGroup("view" + QString::number(i)); | |
373 | ||
374 | if (i > 0) { | |
375 | views::ViewType type = (views::ViewType)settings.value("type").toInt(); | |
376 | add_view(name_, type, this); | |
377 | views_.back()->restore_settings(settings); | |
378 | } else | |
379 | main_view_->restore_settings(settings); | |
380 | ||
381 | settings.endGroup(); | |
382 | } | |
383 | } | |
384 | } | |
385 | ||
386 | void Session::select_device(shared_ptr<devices::Device> device) | |
387 | { | |
388 | try { | |
389 | if (device) | |
390 | set_device(device); | |
391 | else | |
392 | set_default_device(); | |
393 | } catch (const QString &e) { | |
394 | MainWindow::show_session_error(tr("Failed to select device"), e); | |
395 | } | |
396 | } | |
397 | ||
398 | void Session::set_device(shared_ptr<devices::Device> device) | |
399 | { | |
400 | assert(device); | |
401 | ||
402 | // Ensure we are not capturing before setting the device | |
403 | stop_capture(); | |
404 | ||
405 | if (device_) | |
406 | device_->close(); | |
407 | ||
408 | device_.reset(); | |
409 | ||
410 | // Revert name back to default name (e.g. "Session 1") as the data is gone | |
411 | name_ = default_name_; | |
412 | name_changed(); | |
413 | ||
414 | // Remove all stored data and reset all views | |
415 | for (shared_ptr<views::ViewBase> view : views_) { | |
416 | view->clear_signals(); | |
417 | #ifdef ENABLE_DECODE | |
418 | view->clear_decode_signals(); | |
419 | #endif | |
420 | view->reset_view_state(); | |
421 | } | |
422 | for (const shared_ptr<data::SignalData>& d : all_signal_data_) | |
423 | d->clear(); | |
424 | all_signal_data_.clear(); | |
425 | signalbases_.clear(); | |
426 | cur_logic_segment_.reset(); | |
427 | ||
428 | for (auto& entry : cur_analog_segments_) { | |
429 | shared_ptr<sigrok::Channel>(entry.first).reset(); | |
430 | shared_ptr<data::AnalogSegment>(entry.second).reset(); | |
431 | } | |
432 | ||
433 | logic_data_.reset(); | |
434 | ||
435 | signals_changed(); | |
436 | ||
437 | device_ = move(device); | |
438 | ||
439 | try { | |
440 | device_->open(); | |
441 | } catch (const QString &e) { | |
442 | device_.reset(); | |
443 | MainWindow::show_session_error(tr("Failed to open device"), e); | |
444 | } | |
445 | ||
446 | if (device_) { | |
447 | device_->session()->add_datafeed_callback([=] | |
448 | (shared_ptr<sigrok::Device> device, shared_ptr<Packet> packet) { | |
449 | data_feed_in(device, packet); | |
450 | }); | |
451 | ||
452 | update_signals(); | |
453 | } | |
454 | ||
455 | device_changed(); | |
456 | } | |
457 | ||
458 | void Session::set_default_device() | |
459 | { | |
460 | const list< shared_ptr<devices::HardwareDevice> > &devices = | |
461 | device_manager_.devices(); | |
462 | ||
463 | if (devices.empty()) | |
464 | return; | |
465 | ||
466 | // Try and find the demo device and select that by default | |
467 | const auto iter = find_if(devices.begin(), devices.end(), | |
468 | [] (const shared_ptr<devices::HardwareDevice> &d) { | |
469 | return d->hardware_device()->driver()->name() == "demo"; }); | |
470 | set_device((iter == devices.end()) ? devices.front() : *iter); | |
471 | } | |
472 | ||
473 | /** | |
474 | * Convert generic options to data types that are specific to InputFormat. | |
475 | * | |
476 | * @param[in] user_spec Vector of tokenized words, string format. | |
477 | * @param[in] fmt_opts Input format's options, result of InputFormat::options(). | |
478 | * | |
479 | * @return Map of options suitable for InputFormat::create_input(). | |
480 | */ | |
481 | map<string, Glib::VariantBase> | |
482 | Session::input_format_options(vector<string> user_spec, | |
483 | map<string, shared_ptr<Option>> fmt_opts) | |
484 | { | |
485 | map<string, Glib::VariantBase> result; | |
486 | ||
487 | for (auto& entry : user_spec) { | |
488 | /* | |
489 | * Split key=value specs. Accept entries without separator | |
490 | * (for simplified boolean specifications). | |
491 | */ | |
492 | string key, val; | |
493 | size_t pos = entry.find("="); | |
494 | if (pos == std::string::npos) { | |
495 | key = entry; | |
496 | val = ""; | |
497 | } else { | |
498 | key = entry.substr(0, pos); | |
499 | val = entry.substr(pos + 1); | |
500 | } | |
501 | ||
502 | /* | |
503 | * Skip user specifications that are not a member of the | |
504 | * format's set of supported options. Have the text input | |
505 | * spec converted to the required input format specific | |
506 | * data type. | |
507 | */ | |
508 | auto found = fmt_opts.find(key); | |
509 | if (found == fmt_opts.end()) | |
510 | continue; | |
511 | shared_ptr<Option> opt = found->second; | |
512 | result[key] = opt->parse_string(val); | |
513 | } | |
514 | ||
515 | return result; | |
516 | } | |
517 | ||
518 | void Session::load_init_file(const string &file_name, const string &format) | |
519 | { | |
520 | shared_ptr<InputFormat> input_format; | |
521 | map<string, Glib::VariantBase> input_opts; | |
522 | ||
523 | if (!format.empty()) { | |
524 | const map<string, shared_ptr<InputFormat> > formats = | |
525 | device_manager_.context()->input_formats(); | |
526 | auto user_opts = pv::util::split_string(format, ":"); | |
527 | string user_name = user_opts.front(); | |
528 | user_opts.erase(user_opts.begin()); | |
529 | const auto iter = find_if(formats.begin(), formats.end(), | |
530 | [&](const pair<string, shared_ptr<InputFormat> > f) { | |
531 | return f.first == user_name; }); | |
532 | if (iter == formats.end()) { | |
533 | MainWindow::show_session_error(tr("Error"), | |
534 | tr("Unexpected input format: %s").arg(QString::fromStdString(format))); | |
535 | return; | |
536 | } | |
537 | input_format = (*iter).second; | |
538 | input_opts = input_format_options(user_opts, | |
539 | input_format->options()); | |
540 | } | |
541 | ||
542 | load_file(QString::fromStdString(file_name), input_format, input_opts); | |
543 | } | |
544 | ||
545 | void Session::load_file(QString file_name, | |
546 | shared_ptr<sigrok::InputFormat> format, | |
547 | const map<string, Glib::VariantBase> &options) | |
548 | { | |
549 | const QString errorMessage( | |
550 | QString("Failed to load file %1").arg(file_name)); | |
551 | ||
552 | // In the absence of a caller's format spec, try to auto detect. | |
553 | // Assume "sigrok session file" upon lookup miss. | |
554 | if (!format) | |
555 | format = device_manager_.context()->input_format_match(file_name.toStdString()); | |
556 | try { | |
557 | if (format) | |
558 | set_device(shared_ptr<devices::Device>( | |
559 | new devices::InputFile( | |
560 | device_manager_.context(), | |
561 | file_name.toStdString(), | |
562 | format, options))); | |
563 | else | |
564 | set_device(shared_ptr<devices::Device>( | |
565 | new devices::SessionFile( | |
566 | device_manager_.context(), | |
567 | file_name.toStdString()))); | |
568 | } catch (Error& e) { | |
569 | MainWindow::show_session_error(tr("Failed to load ") + file_name, e.what()); | |
570 | set_default_device(); | |
571 | main_bar_->update_device_list(); | |
572 | return; | |
573 | } | |
574 | ||
575 | main_bar_->update_device_list(); | |
576 | ||
577 | start_capture([&, errorMessage](QString infoMessage) { | |
578 | MainWindow::show_session_error(errorMessage, infoMessage); }); | |
579 | ||
580 | set_name(QFileInfo(file_name).fileName()); | |
581 | } | |
582 | ||
583 | Session::capture_state Session::get_capture_state() const | |
584 | { | |
585 | lock_guard<mutex> lock(sampling_mutex_); | |
586 | return capture_state_; | |
587 | } | |
588 | ||
589 | void Session::start_capture(function<void (const QString)> error_handler) | |
590 | { | |
591 | if (!device_) { | |
592 | error_handler(tr("No active device set, can't start acquisition.")); | |
593 | return; | |
594 | } | |
595 | ||
596 | stop_capture(); | |
597 | ||
598 | // Check that at least one channel is enabled | |
599 | const shared_ptr<sigrok::Device> sr_dev = device_->device(); | |
600 | if (sr_dev) { | |
601 | const auto channels = sr_dev->channels(); | |
602 | if (!any_of(channels.begin(), channels.end(), | |
603 | [](shared_ptr<Channel> channel) { | |
604 | return channel->enabled(); })) { | |
605 | error_handler(tr("No channels enabled.")); | |
606 | return; | |
607 | } | |
608 | } | |
609 | ||
610 | // Clear signal data | |
611 | for (const shared_ptr<data::SignalData>& d : all_signal_data_) | |
612 | d->clear(); | |
613 | ||
614 | trigger_list_.clear(); | |
615 | ||
616 | // Revert name back to default name (e.g. "Session 1") for real devices | |
617 | // as the (possibly saved) data is gone. File devices keep their name. | |
618 | shared_ptr<devices::HardwareDevice> hw_device = | |
619 | dynamic_pointer_cast< devices::HardwareDevice >(device_); | |
620 | ||
621 | if (hw_device) { | |
622 | name_ = default_name_; | |
623 | name_changed(); | |
624 | } | |
625 | ||
626 | // Begin the session | |
627 | sampling_thread_ = std::thread( | |
628 | &Session::sample_thread_proc, this, error_handler); | |
629 | } | |
630 | ||
631 | void Session::stop_capture() | |
632 | { | |
633 | if (get_capture_state() != Stopped) | |
634 | device_->stop(); | |
635 | ||
636 | // Check that sampling stopped | |
637 | if (sampling_thread_.joinable()) | |
638 | sampling_thread_.join(); | |
639 | } | |
640 | ||
641 | void Session::register_view(shared_ptr<views::ViewBase> view) | |
642 | { | |
643 | if (views_.empty()) { | |
644 | main_view_ = view; | |
645 | } | |
646 | ||
647 | views_.push_back(view); | |
648 | ||
649 | // Add all device signals | |
650 | update_signals(); | |
651 | ||
652 | // Add all other signals | |
653 | unordered_set< shared_ptr<data::SignalBase> > view_signalbases = | |
654 | view->signalbases(); | |
655 | ||
656 | views::trace::View *trace_view = | |
657 | qobject_cast<views::trace::View*>(view.get()); | |
658 | ||
659 | if (trace_view) { | |
660 | for (const shared_ptr<data::SignalBase>& signalbase : signalbases_) { | |
661 | const int sb_exists = count_if( | |
662 | view_signalbases.cbegin(), view_signalbases.cend(), | |
663 | [&](const shared_ptr<data::SignalBase> &sb) { | |
664 | return sb == signalbase; | |
665 | }); | |
666 | // Add the signal to the view as it doesn't have it yet | |
667 | if (!sb_exists) | |
668 | switch (signalbase->type()) { | |
669 | case data::SignalBase::AnalogChannel: | |
670 | case data::SignalBase::LogicChannel: | |
671 | case data::SignalBase::DecodeChannel: | |
672 | #ifdef ENABLE_DECODE | |
673 | trace_view->add_decode_signal( | |
674 | dynamic_pointer_cast<data::DecodeSignal>(signalbase)); | |
675 | #endif | |
676 | break; | |
677 | case data::SignalBase::MathChannel: | |
678 | // TBD | |
679 | break; | |
680 | } | |
681 | } | |
682 | } | |
683 | ||
684 | signals_changed(); | |
685 | } | |
686 | ||
687 | void Session::deregister_view(shared_ptr<views::ViewBase> view) | |
688 | { | |
689 | views_.remove_if([&](shared_ptr<views::ViewBase> v) { return v == view; }); | |
690 | ||
691 | if (views_.empty()) { | |
692 | main_view_.reset(); | |
693 | ||
694 | // Without a view there can be no main bar | |
695 | main_bar_.reset(); | |
696 | } | |
697 | } | |
698 | ||
699 | bool Session::has_view(shared_ptr<views::ViewBase> view) | |
700 | { | |
701 | for (shared_ptr<views::ViewBase>& v : views_) | |
702 | if (v == view) | |
703 | return true; | |
704 | ||
705 | return false; | |
706 | } | |
707 | ||
708 | double Session::get_samplerate() const | |
709 | { | |
710 | double samplerate = 0.0; | |
711 | ||
712 | for (const shared_ptr<pv::data::SignalData>& d : all_signal_data_) { | |
713 | assert(d); | |
714 | const vector< shared_ptr<pv::data::Segment> > segments = | |
715 | d->segments(); | |
716 | for (const shared_ptr<pv::data::Segment>& s : segments) | |
717 | samplerate = max(samplerate, s->samplerate()); | |
718 | } | |
719 | // If there is no sample rate given we use samples as unit | |
720 | if (samplerate == 0.0) | |
721 | samplerate = 1.0; | |
722 | ||
723 | return samplerate; | |
724 | } | |
725 | ||
726 | uint32_t Session::get_segment_count() const | |
727 | { | |
728 | uint32_t value = 0; | |
729 | ||
730 | // Find the highest number of segments | |
731 | for (const shared_ptr<data::SignalData>& data : all_signal_data_) | |
732 | if (data->get_segment_count() > value) | |
733 | value = data->get_segment_count(); | |
734 | ||
735 | return value; | |
736 | } | |
737 | ||
738 | vector<util::Timestamp> Session::get_triggers(uint32_t segment_id) const | |
739 | { | |
740 | vector<util::Timestamp> result; | |
741 | ||
742 | for (const pair<uint32_t, util::Timestamp>& entry : trigger_list_) | |
743 | if (entry.first == segment_id) | |
744 | result.push_back(entry.second); | |
745 | ||
746 | return result; | |
747 | } | |
748 | ||
749 | const unordered_set< shared_ptr<data::SignalBase> > Session::signalbases() const | |
750 | { | |
751 | return signalbases_; | |
752 | } | |
753 | ||
754 | bool Session::all_segments_complete(uint32_t segment_id) const | |
755 | { | |
756 | bool all_complete = true; | |
757 | ||
758 | for (const shared_ptr<data::SignalBase>& base : signalbases_) | |
759 | if (!base->segment_is_complete(segment_id)) | |
760 | all_complete = false; | |
761 | ||
762 | return all_complete; | |
763 | } | |
764 | ||
765 | #ifdef ENABLE_DECODE | |
766 | shared_ptr<data::DecodeSignal> Session::add_decode_signal() | |
767 | { | |
768 | shared_ptr<data::DecodeSignal> signal; | |
769 | ||
770 | try { | |
771 | // Create the decode signal | |
772 | signal = make_shared<data::DecodeSignal>(*this); | |
773 | ||
774 | signalbases_.insert(signal); | |
775 | ||
776 | // Add the decode signal to all views | |
777 | for (shared_ptr<views::ViewBase>& view : views_) | |
778 | view->add_decode_signal(signal); | |
779 | } catch (runtime_error& e) { | |
780 | remove_decode_signal(signal); | |
781 | return nullptr; | |
782 | } | |
783 | ||
784 | signals_changed(); | |
785 | ||
786 | return signal; | |
787 | } | |
788 | ||
789 | void Session::remove_decode_signal(shared_ptr<data::DecodeSignal> signal) | |
790 | { | |
791 | signalbases_.erase(signal); | |
792 | ||
793 | for (shared_ptr<views::ViewBase>& view : views_) | |
794 | view->remove_decode_signal(signal); | |
795 | ||
796 | signals_changed(); | |
797 | } | |
798 | #endif | |
799 | ||
800 | void Session::set_capture_state(capture_state state) | |
801 | { | |
802 | bool changed; | |
803 | ||
804 | { | |
805 | lock_guard<mutex> lock(sampling_mutex_); | |
806 | changed = capture_state_ != state; | |
807 | capture_state_ = state; | |
808 | } | |
809 | ||
810 | if (changed) | |
811 | capture_state_changed(state); | |
812 | } | |
813 | ||
814 | void Session::update_signals() | |
815 | { | |
816 | if (!device_) { | |
817 | signalbases_.clear(); | |
818 | logic_data_.reset(); | |
819 | for (shared_ptr<views::ViewBase>& view : views_) { | |
820 | view->clear_signals(); | |
821 | #ifdef ENABLE_DECODE | |
822 | view->clear_decode_signals(); | |
823 | #endif | |
824 | } | |
825 | return; | |
826 | } | |
827 | ||
828 | lock_guard<recursive_mutex> lock(data_mutex_); | |
829 | ||
830 | const shared_ptr<sigrok::Device> sr_dev = device_->device(); | |
831 | if (!sr_dev) { | |
832 | signalbases_.clear(); | |
833 | logic_data_.reset(); | |
834 | for (shared_ptr<views::ViewBase>& view : views_) { | |
835 | view->clear_signals(); | |
836 | #ifdef ENABLE_DECODE | |
837 | view->clear_decode_signals(); | |
838 | #endif | |
839 | } | |
840 | return; | |
841 | } | |
842 | ||
843 | // Detect what data types we will receive | |
844 | auto channels = sr_dev->channels(); | |
845 | unsigned int logic_channel_count = count_if( | |
846 | channels.begin(), channels.end(), | |
847 | [] (shared_ptr<Channel> channel) { | |
848 | return channel->type() == sigrok::ChannelType::LOGIC; }); | |
849 | ||
850 | // Create data containers for the logic data segments | |
851 | { | |
852 | lock_guard<recursive_mutex> data_lock(data_mutex_); | |
853 | ||
854 | if (logic_channel_count == 0) { | |
855 | logic_data_.reset(); | |
856 | } else if (!logic_data_ || | |
857 | logic_data_->num_channels() != logic_channel_count) { | |
858 | logic_data_.reset(new data::Logic( | |
859 | logic_channel_count)); | |
860 | assert(logic_data_); | |
861 | } | |
862 | } | |
863 | ||
864 | // Make the signals list | |
865 | for (shared_ptr<views::ViewBase>& viewbase : views_) { | |
866 | views::trace::View *trace_view = | |
867 | qobject_cast<views::trace::View*>(viewbase.get()); | |
868 | ||
869 | if (trace_view) { | |
870 | unordered_set< shared_ptr<views::trace::Signal> > | |
871 | prev_sigs(trace_view->signals()); | |
872 | trace_view->clear_signals(); | |
873 | ||
874 | for (auto channel : sr_dev->channels()) { | |
875 | shared_ptr<data::SignalBase> signalbase; | |
876 | shared_ptr<views::trace::Signal> signal; | |
877 | ||
878 | // Find the channel in the old signals | |
879 | const auto iter = find_if( | |
880 | prev_sigs.cbegin(), prev_sigs.cend(), | |
881 | [&](const shared_ptr<views::trace::Signal> &s) { | |
882 | return s->base()->channel() == channel; | |
883 | }); | |
884 | if (iter != prev_sigs.end()) { | |
885 | // Copy the signal from the old set to the new | |
886 | signal = *iter; | |
887 | trace_view->add_signal(signal); | |
888 | } else { | |
889 | // Find the signalbase for this channel if possible | |
890 | signalbase.reset(); | |
891 | for (const shared_ptr<data::SignalBase>& b : signalbases_) | |
892 | if (b->channel() == channel) | |
893 | signalbase = b; | |
894 | ||
895 | switch(channel->type()->id()) { | |
896 | case SR_CHANNEL_LOGIC: | |
897 | if (!signalbase) { | |
898 | signalbase = make_shared<data::SignalBase>(channel, | |
899 | data::SignalBase::LogicChannel); | |
900 | signalbases_.insert(signalbase); | |
901 | ||
902 | all_signal_data_.insert(logic_data_); | |
903 | signalbase->set_data(logic_data_); | |
904 | ||
905 | connect(this, SIGNAL(capture_state_changed(int)), | |
906 | signalbase.get(), SLOT(on_capture_state_changed(int))); | |
907 | } | |
908 | ||
909 | signal = shared_ptr<views::trace::Signal>( | |
910 | new views::trace::LogicSignal(*this, | |
911 | device_, signalbase)); | |
912 | trace_view->add_signal(signal); | |
913 | break; | |
914 | ||
915 | case SR_CHANNEL_ANALOG: | |
916 | { | |
917 | if (!signalbase) { | |
918 | signalbase = make_shared<data::SignalBase>(channel, | |
919 | data::SignalBase::AnalogChannel); | |
920 | signalbases_.insert(signalbase); | |
921 | ||
922 | shared_ptr<data::Analog> data(new data::Analog()); | |
923 | all_signal_data_.insert(data); | |
924 | signalbase->set_data(data); | |
925 | ||
926 | connect(this, SIGNAL(capture_state_changed(int)), | |
927 | signalbase.get(), SLOT(on_capture_state_changed(int))); | |
928 | } | |
929 | ||
930 | signal = shared_ptr<views::trace::Signal>( | |
931 | new views::trace::AnalogSignal( | |
932 | *this, signalbase)); | |
933 | trace_view->add_signal(signal); | |
934 | break; | |
935 | } | |
936 | ||
937 | default: | |
938 | assert(false); | |
939 | break; | |
940 | } | |
941 | } | |
942 | } | |
943 | } | |
944 | } | |
945 | ||
946 | signals_changed(); | |
947 | } | |
948 | ||
949 | shared_ptr<data::SignalBase> Session::signalbase_from_channel( | |
950 | shared_ptr<sigrok::Channel> channel) const | |
951 | { | |
952 | for (shared_ptr<data::SignalBase> sig : signalbases_) { | |
953 | assert(sig); | |
954 | if (sig->channel() == channel) | |
955 | return sig; | |
956 | } | |
957 | return shared_ptr<data::SignalBase>(); | |
958 | } | |
959 | ||
960 | void Session::sample_thread_proc(function<void (const QString)> error_handler) | |
961 | { | |
962 | assert(error_handler); | |
963 | ||
964 | #ifdef ENABLE_FLOW | |
965 | pipeline_ = Pipeline::create(); | |
966 | ||
967 | source_ = ElementFactory::create_element("filesrc", "source"); | |
968 | sink_ = RefPtr<AppSink>::cast_dynamic(ElementFactory::create_element("appsink", "sink")); | |
969 | ||
970 | pipeline_->add(source_)->add(sink_); | |
971 | source_->link(sink_); | |
972 | ||
973 | source_->set_property("location", Glib::ustring("/tmp/dummy_binary")); | |
974 | ||
975 | sink_->set_property("emit-signals", TRUE); | |
976 | sink_->signal_new_sample().connect(sigc::mem_fun(*this, &Session::on_gst_new_sample)); | |
977 | ||
978 | // Get the bus from the pipeline and add a bus watch to the default main context | |
979 | RefPtr<Bus> bus = pipeline_->get_bus(); | |
980 | bus->add_watch(sigc::mem_fun(this, &Session::on_gst_bus_message)); | |
981 | ||
982 | // Start pipeline and Wait until it finished processing | |
983 | pipeline_done_interrupt_ = false; | |
984 | pipeline_->set_state(Gst::STATE_PLAYING); | |
985 | ||
986 | unique_lock<mutex> pipeline_done_lock_(pipeline_done_mutex_); | |
987 | pipeline_done_cond_.wait(pipeline_done_lock_); | |
988 | ||
989 | // Let the pipeline free all resources | |
990 | pipeline_->set_state(Gst::STATE_NULL); | |
991 | ||
992 | #else | |
993 | if (!device_) | |
994 | return; | |
995 | ||
996 | try { | |
997 | cur_samplerate_ = device_->read_config<uint64_t>(ConfigKey::SAMPLERATE); | |
998 | } catch (Error& e) { | |
999 | cur_samplerate_ = 0; | |
1000 | } | |
1001 | ||
1002 | out_of_memory_ = false; | |
1003 | ||
1004 | { | |
1005 | lock_guard<recursive_mutex> lock(data_mutex_); | |
1006 | cur_logic_segment_.reset(); | |
1007 | cur_analog_segments_.clear(); | |
1008 | } | |
1009 | highest_segment_id_ = -1; | |
1010 | frame_began_ = false; | |
1011 | ||
1012 | try { | |
1013 | device_->start(); | |
1014 | } catch (Error& e) { | |
1015 | error_handler(e.what()); | |
1016 | return; | |
1017 | } | |
1018 | ||
1019 | set_capture_state(device_->session()->trigger() ? | |
1020 | AwaitingTrigger : Running); | |
1021 | ||
1022 | try { | |
1023 | device_->run(); | |
1024 | } catch (Error& e) { | |
1025 | error_handler(e.what()); | |
1026 | set_capture_state(Stopped); | |
1027 | return; | |
1028 | } catch (QString& e) { | |
1029 | error_handler(e); | |
1030 | set_capture_state(Stopped); | |
1031 | return; | |
1032 | } | |
1033 | ||
1034 | set_capture_state(Stopped); | |
1035 | ||
1036 | // Confirm that SR_DF_END was received | |
1037 | if (cur_logic_segment_) | |
1038 | qDebug() << "WARNING: SR_DF_END was not received."; | |
1039 | #endif | |
1040 | ||
1041 | // Optimize memory usage | |
1042 | free_unused_memory(); | |
1043 | ||
1044 | // We now have unsaved data unless we just "captured" from a file | |
1045 | shared_ptr<devices::File> file_device = | |
1046 | dynamic_pointer_cast<devices::File>(device_); | |
1047 | ||
1048 | if (!file_device) | |
1049 | data_saved_ = false; | |
1050 | ||
1051 | if (out_of_memory_) | |
1052 | error_handler(tr("Out of memory, acquisition stopped.")); | |
1053 | } | |
1054 | ||
1055 | void Session::free_unused_memory() | |
1056 | { | |
1057 | for (const shared_ptr<data::SignalData>& data : all_signal_data_) { | |
1058 | const vector< shared_ptr<data::Segment> > segments = data->segments(); | |
1059 | ||
1060 | for (const shared_ptr<data::Segment>& segment : segments) | |
1061 | segment->free_unused_memory(); | |
1062 | } | |
1063 | } | |
1064 | ||
1065 | void Session::signal_new_segment() | |
1066 | { | |
1067 | int new_segment_id = 0; | |
1068 | ||
1069 | if ((cur_logic_segment_ != nullptr) || !cur_analog_segments_.empty()) { | |
1070 | ||
1071 | // Determine new frame/segment number, assuming that all | |
1072 | // signals have the same number of frames/segments | |
1073 | if (cur_logic_segment_) { | |
1074 | new_segment_id = logic_data_->get_segment_count() - 1; | |
1075 | } else { | |
1076 | shared_ptr<sigrok::Channel> any_channel = | |
1077 | (*cur_analog_segments_.begin()).first; | |
1078 | ||
1079 | shared_ptr<data::SignalBase> base = signalbase_from_channel(any_channel); | |
1080 | assert(base); | |
1081 | ||
1082 | shared_ptr<data::Analog> data(base->analog_data()); | |
1083 | assert(data); | |
1084 | ||
1085 | new_segment_id = data->get_segment_count() - 1; | |
1086 | } | |
1087 | } | |
1088 | ||
1089 | if (new_segment_id > highest_segment_id_) { | |
1090 | highest_segment_id_ = new_segment_id; | |
1091 | new_segment(highest_segment_id_); | |
1092 | } | |
1093 | } | |
1094 | ||
1095 | void Session::signal_segment_completed() | |
1096 | { | |
1097 | int segment_id = 0; | |
1098 | ||
1099 | for (const shared_ptr<data::SignalBase>& signalbase : signalbases_) { | |
1100 | // We only care about analog and logic channels, not derived ones | |
1101 | if (signalbase->type() == data::SignalBase::AnalogChannel) { | |
1102 | segment_id = signalbase->analog_data()->get_segment_count() - 1; | |
1103 | break; | |
1104 | } | |
1105 | ||
1106 | if (signalbase->type() == data::SignalBase::LogicChannel) { | |
1107 | segment_id = signalbase->logic_data()->get_segment_count() - 1; | |
1108 | break; | |
1109 | } | |
1110 | } | |
1111 | ||
1112 | if (segment_id >= 0) | |
1113 | segment_completed(segment_id); | |
1114 | } | |
1115 | ||
1116 | #ifdef ENABLE_FLOW | |
1117 | bool Session::on_gst_bus_message(const Glib::RefPtr<Gst::Bus>& bus, const Glib::RefPtr<Gst::Message>& message) | |
1118 | { | |
1119 | (void)bus; | |
1120 | ||
1121 | if ((message->get_source() == pipeline_) && \ | |
1122 | ((message->get_message_type() == Gst::MESSAGE_EOS))) | |
1123 | pipeline_done_cond_.notify_one(); | |
1124 | ||
1125 | // TODO Also evaluate MESSAGE_STREAM_STATUS to receive error notifications | |
1126 | ||
1127 | return true; | |
1128 | } | |
1129 | ||
1130 | Gst::FlowReturn Session::on_gst_new_sample() | |
1131 | { | |
1132 | RefPtr<Gst::Sample> sample = sink_->pull_sample(); | |
1133 | RefPtr<Gst::Buffer> buf = sample->get_buffer(); | |
1134 | ||
1135 | for (uint32_t block_id = 0; block_id < buf->n_memory(); block_id++) { | |
1136 | RefPtr<Gst::Memory> buf_mem = buf->get_memory(block_id); | |
1137 | Gst::MapInfo mapinfo; | |
1138 | buf_mem->map(mapinfo, Gst::MAP_READ); | |
1139 | ||
1140 | shared_ptr<sigrok::Packet> logic_packet = | |
1141 | sr_context->create_logic_packet(mapinfo.get_data(), buf->get_size(), 1); | |
1142 | ||
1143 | try { | |
1144 | feed_in_logic(dynamic_pointer_cast<sigrok::Logic>(logic_packet->payload())); | |
1145 | } catch (bad_alloc&) { | |
1146 | out_of_memory_ = true; | |
1147 | device_->stop(); | |
1148 | buf_mem->unmap(mapinfo); | |
1149 | return Gst::FLOW_ERROR; | |
1150 | } | |
1151 | ||
1152 | buf_mem->unmap(mapinfo); | |
1153 | } | |
1154 | ||
1155 | return Gst::FLOW_OK; | |
1156 | } | |
1157 | #endif | |
1158 | ||
1159 | void Session::feed_in_header() | |
1160 | { | |
1161 | // Nothing to do here for now | |
1162 | } | |
1163 | ||
1164 | void Session::feed_in_meta(shared_ptr<Meta> meta) | |
1165 | { | |
1166 | for (auto& entry : meta->config()) { | |
1167 | switch (entry.first->id()) { | |
1168 | case SR_CONF_SAMPLERATE: | |
1169 | cur_samplerate_ = g_variant_get_uint64(entry.second.gobj()); | |
1170 | break; | |
1171 | default: | |
1172 | qDebug() << "Received meta data key" << entry.first->id() << ", ignoring."; | |
1173 | break; | |
1174 | } | |
1175 | } | |
1176 | ||
1177 | signals_changed(); | |
1178 | } | |
1179 | ||
1180 | void Session::feed_in_trigger() | |
1181 | { | |
1182 | // The channel containing most samples should be most accurate | |
1183 | uint64_t sample_count = 0; | |
1184 | ||
1185 | { | |
1186 | for (const shared_ptr<pv::data::SignalData>& d : all_signal_data_) { | |
1187 | assert(d); | |
1188 | uint64_t temp_count = 0; | |
1189 | ||
1190 | const vector< shared_ptr<pv::data::Segment> > segments = | |
1191 | d->segments(); | |
1192 | for (const shared_ptr<pv::data::Segment> &s : segments) | |
1193 | temp_count += s->get_sample_count(); | |
1194 | ||
1195 | if (temp_count > sample_count) | |
1196 | sample_count = temp_count; | |
1197 | } | |
1198 | } | |
1199 | ||
1200 | uint32_t segment_id = 0; // Default segment when no frames are used | |
1201 | ||
1202 | // If a frame began, we'd ideally be able to use the highest segment ID for | |
1203 | // the trigger. However, as new segments are only created when logic or | |
1204 | // analog data comes in, this doesn't work if the trigger appears right | |
1205 | // after the beginning of the frame, before any sample data. | |
1206 | // For this reason, we use highest segment ID + 1 if no sample data came in | |
1207 | // yet and the highest segment ID otherwise. | |
1208 | if (frame_began_) { | |
1209 | segment_id = highest_segment_id_; | |
1210 | if (!cur_logic_segment_ && (cur_analog_segments_.size() == 0)) | |
1211 | segment_id++; | |
1212 | } | |
1213 | ||
1214 | // TODO Create timestamp from segment start time + segment's current sample count | |
1215 | util::Timestamp timestamp = sample_count / get_samplerate(); | |
1216 | trigger_list_.emplace_back(segment_id, timestamp); | |
1217 | trigger_event(segment_id, timestamp); | |
1218 | } | |
1219 | ||
1220 | void Session::feed_in_frame_begin() | |
1221 | { | |
1222 | frame_began_ = true; | |
1223 | } | |
1224 | ||
1225 | void Session::feed_in_frame_end() | |
1226 | { | |
1227 | if (!frame_began_) | |
1228 | return; | |
1229 | ||
1230 | { | |
1231 | lock_guard<recursive_mutex> lock(data_mutex_); | |
1232 | ||
1233 | if (cur_logic_segment_) | |
1234 | cur_logic_segment_->set_complete(); | |
1235 | ||
1236 | for (auto& entry : cur_analog_segments_) { | |
1237 | shared_ptr<data::AnalogSegment> segment = entry.second; | |
1238 | segment->set_complete(); | |
1239 | } | |
1240 | ||
1241 | cur_logic_segment_.reset(); | |
1242 | cur_analog_segments_.clear(); | |
1243 | } | |
1244 | ||
1245 | frame_began_ = false; | |
1246 | ||
1247 | signal_segment_completed(); | |
1248 | } | |
1249 | ||
1250 | void Session::feed_in_logic(shared_ptr<Logic> logic) | |
1251 | { | |
1252 | if (logic->data_length() == 0) { | |
1253 | qDebug() << "WARNING: Received logic packet with 0 samples."; | |
1254 | return; | |
1255 | } | |
1256 | ||
1257 | if (logic->unit_size() > 8) | |
1258 | throw QString(tr("Can't handle more than 64 logic channels.")); | |
1259 | ||
1260 | if (!cur_samplerate_) | |
1261 | try { | |
1262 | cur_samplerate_ = device_->read_config<uint64_t>(ConfigKey::SAMPLERATE); | |
1263 | } catch (Error& e) { | |
1264 | // Do nothing | |
1265 | } | |
1266 | ||
1267 | lock_guard<recursive_mutex> lock(data_mutex_); | |
1268 | ||
1269 | if (!logic_data_) { | |
1270 | // The only reason logic_data_ would not have been created is | |
1271 | // if it was not possible to determine the signals when the | |
1272 | // device was created. | |
1273 | update_signals(); | |
1274 | } | |
1275 | ||
1276 | if (!cur_logic_segment_) { | |
1277 | // This could be the first packet after a trigger | |
1278 | set_capture_state(Running); | |
1279 | ||
1280 | // Create a new data segment | |
1281 | cur_logic_segment_ = make_shared<data::LogicSegment>( | |
1282 | *logic_data_, logic_data_->get_segment_count(), | |
1283 | logic->unit_size(), cur_samplerate_); | |
1284 | logic_data_->push_segment(cur_logic_segment_); | |
1285 | ||
1286 | signal_new_segment(); | |
1287 | } | |
1288 | ||
1289 | cur_logic_segment_->append_payload(logic); | |
1290 | ||
1291 | data_received(); | |
1292 | } | |
1293 | ||
1294 | void Session::feed_in_analog(shared_ptr<Analog> analog) | |
1295 | { | |
1296 | if (analog->num_samples() == 0) { | |
1297 | qDebug() << "WARNING: Received analog packet with 0 samples."; | |
1298 | return; | |
1299 | } | |
1300 | ||
1301 | if (!cur_samplerate_) | |
1302 | try { | |
1303 | cur_samplerate_ = device_->read_config<uint64_t>(ConfigKey::SAMPLERATE); | |
1304 | } catch (Error& e) { | |
1305 | // Do nothing | |
1306 | } | |
1307 | ||
1308 | lock_guard<recursive_mutex> lock(data_mutex_); | |
1309 | ||
1310 | const vector<shared_ptr<Channel>> channels = analog->channels(); | |
1311 | bool sweep_beginning = false; | |
1312 | ||
1313 | unique_ptr<float[]> data(new float[analog->num_samples() * channels.size()]); | |
1314 | analog->get_data_as_float(data.get()); | |
1315 | ||
1316 | if (signalbases_.empty()) | |
1317 | update_signals(); | |
1318 | ||
1319 | float *channel_data = data.get(); | |
1320 | for (auto& channel : channels) { | |
1321 | shared_ptr<data::AnalogSegment> segment; | |
1322 | ||
1323 | // Try to get the segment of the channel | |
1324 | const map< shared_ptr<Channel>, shared_ptr<data::AnalogSegment> >:: | |
1325 | iterator iter = cur_analog_segments_.find(channel); | |
1326 | if (iter != cur_analog_segments_.end()) | |
1327 | segment = (*iter).second; | |
1328 | else { | |
1329 | // If no segment was found, this means we haven't | |
1330 | // created one yet. i.e. this is the first packet | |
1331 | // in the sweep containing this segment. | |
1332 | sweep_beginning = true; | |
1333 | ||
1334 | // Find the analog data associated with the channel | |
1335 | shared_ptr<data::SignalBase> base = signalbase_from_channel(channel); | |
1336 | assert(base); | |
1337 | ||
1338 | shared_ptr<data::Analog> data(base->analog_data()); | |
1339 | assert(data); | |
1340 | ||
1341 | // Create a segment, keep it in the maps of channels | |
1342 | segment = make_shared<data::AnalogSegment>( | |
1343 | *data, data->get_segment_count(), cur_samplerate_); | |
1344 | cur_analog_segments_[channel] = segment; | |
1345 | ||
1346 | // Push the segment into the analog data. | |
1347 | data->push_segment(segment); | |
1348 | ||
1349 | signal_new_segment(); | |
1350 | } | |
1351 | ||
1352 | assert(segment); | |
1353 | ||
1354 | // Append the samples in the segment | |
1355 | segment->append_interleaved_samples(channel_data++, analog->num_samples(), | |
1356 | channels.size()); | |
1357 | } | |
1358 | ||
1359 | if (sweep_beginning) { | |
1360 | // This could be the first packet after a trigger | |
1361 | set_capture_state(Running); | |
1362 | } | |
1363 | ||
1364 | data_received(); | |
1365 | } | |
1366 | ||
1367 | void Session::data_feed_in(shared_ptr<sigrok::Device> device, | |
1368 | shared_ptr<Packet> packet) | |
1369 | { | |
1370 | (void)device; | |
1371 | ||
1372 | assert(device); | |
1373 | assert(device == device_->device()); | |
1374 | assert(packet); | |
1375 | ||
1376 | switch (packet->type()->id()) { | |
1377 | case SR_DF_HEADER: | |
1378 | feed_in_header(); | |
1379 | break; | |
1380 | ||
1381 | case SR_DF_META: | |
1382 | feed_in_meta(dynamic_pointer_cast<Meta>(packet->payload())); | |
1383 | break; | |
1384 | ||
1385 | case SR_DF_TRIGGER: | |
1386 | feed_in_trigger(); | |
1387 | break; | |
1388 | ||
1389 | case SR_DF_LOGIC: | |
1390 | try { | |
1391 | feed_in_logic(dynamic_pointer_cast<Logic>(packet->payload())); | |
1392 | } catch (bad_alloc&) { | |
1393 | out_of_memory_ = true; | |
1394 | device_->stop(); | |
1395 | } | |
1396 | break; | |
1397 | ||
1398 | case SR_DF_ANALOG: | |
1399 | try { | |
1400 | feed_in_analog(dynamic_pointer_cast<Analog>(packet->payload())); | |
1401 | } catch (bad_alloc&) { | |
1402 | out_of_memory_ = true; | |
1403 | device_->stop(); | |
1404 | } | |
1405 | break; | |
1406 | ||
1407 | case SR_DF_FRAME_BEGIN: | |
1408 | feed_in_frame_begin(); | |
1409 | break; | |
1410 | ||
1411 | case SR_DF_FRAME_END: | |
1412 | feed_in_frame_end(); | |
1413 | break; | |
1414 | ||
1415 | case SR_DF_END: | |
1416 | // Strictly speaking, this is performed when a frame end marker was | |
1417 | // received, so there's no point doing this again. However, not all | |
1418 | // devices use frames, and for those devices, we need to do it here. | |
1419 | { | |
1420 | lock_guard<recursive_mutex> lock(data_mutex_); | |
1421 | ||
1422 | if (cur_logic_segment_) | |
1423 | cur_logic_segment_->set_complete(); | |
1424 | ||
1425 | for (auto& entry : cur_analog_segments_) { | |
1426 | shared_ptr<data::AnalogSegment> segment = entry.second; | |
1427 | segment->set_complete(); | |
1428 | } | |
1429 | ||
1430 | cur_logic_segment_.reset(); | |
1431 | cur_analog_segments_.clear(); | |
1432 | } | |
1433 | break; | |
1434 | ||
1435 | default: | |
1436 | break; | |
1437 | } | |
1438 | } | |
1439 | ||
1440 | void Session::on_data_saved() | |
1441 | { | |
1442 | data_saved_ = true; | |
1443 | } | |
1444 | ||
1445 | } // namespace pv |