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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 | #ifdef _WIN32 | |
21 | // Windows: Avoid boost/thread namespace pollution (which includes windows.h). | |
22 | #define NOGDI | |
23 | #define NORESOURCE | |
24 | #endif | |
25 | #include <boost/thread/locks.hpp> | |
26 | #include <boost/thread/shared_mutex.hpp> | |
27 | ||
28 | #include <QFileInfo> | |
29 | ||
30 | #include <cassert> | |
31 | #include <mutex> | |
32 | #include <stdexcept> | |
33 | ||
34 | #include <sys/stat.h> | |
35 | ||
36 | #include "session.hpp" | |
37 | #include "devicemanager.hpp" | |
38 | ||
39 | #include "data/analog.hpp" | |
40 | #include "data/analogsegment.hpp" | |
41 | #include "data/decoderstack.hpp" | |
42 | #include "data/logic.hpp" | |
43 | #include "data/logicsegment.hpp" | |
44 | #include "data/signalbase.hpp" | |
45 | #include "data/decode/decoder.hpp" | |
46 | ||
47 | #include "devices/hardwaredevice.hpp" | |
48 | #include "devices/inputfile.hpp" | |
49 | #include "devices/sessionfile.hpp" | |
50 | ||
51 | #include "toolbars/mainbar.hpp" | |
52 | ||
53 | #include "view/analogsignal.hpp" | |
54 | #include "view/decodetrace.hpp" | |
55 | #include "view/logicsignal.hpp" | |
56 | #include "view/signal.hpp" | |
57 | #include "view/view.hpp" | |
58 | ||
59 | #include <libsigrokcxx/libsigrokcxx.hpp> | |
60 | ||
61 | #ifdef ENABLE_DECODE | |
62 | #include <libsigrokdecode/libsigrokdecode.h> | |
63 | #endif | |
64 | ||
65 | using boost::shared_lock; | |
66 | using boost::shared_mutex; | |
67 | using boost::unique_lock; | |
68 | ||
69 | using std::dynamic_pointer_cast; | |
70 | using std::function; | |
71 | using std::lock_guard; | |
72 | using std::list; | |
73 | using std::map; | |
74 | using std::mutex; | |
75 | using std::pair; | |
76 | using std::recursive_mutex; | |
77 | using std::set; | |
78 | using std::shared_ptr; | |
79 | using std::string; | |
80 | using std::unordered_set; | |
81 | using std::vector; | |
82 | ||
83 | using sigrok::Analog; | |
84 | using sigrok::Channel; | |
85 | using sigrok::ChannelType; | |
86 | using sigrok::ConfigKey; | |
87 | using sigrok::DatafeedCallbackFunction; | |
88 | using sigrok::Error; | |
89 | using sigrok::Header; | |
90 | using sigrok::InputFormat; | |
91 | using sigrok::Logic; | |
92 | using sigrok::Meta; | |
93 | using sigrok::OutputFormat; | |
94 | using sigrok::Packet; | |
95 | using sigrok::PacketPayload; | |
96 | using sigrok::Session; | |
97 | using sigrok::SessionDevice; | |
98 | ||
99 | using Glib::VariantBase; | |
100 | using Glib::Variant; | |
101 | ||
102 | namespace pv { | |
103 | Session::Session(DeviceManager &device_manager, QString name) : | |
104 | device_manager_(device_manager), | |
105 | default_name_(name), | |
106 | name_(name), | |
107 | capture_state_(Stopped), | |
108 | cur_samplerate_(0), | |
109 | data_saved_(true) | |
110 | { | |
111 | } | |
112 | ||
113 | Session::~Session() | |
114 | { | |
115 | // Stop and join to the thread | |
116 | stop_capture(); | |
117 | } | |
118 | ||
119 | DeviceManager& Session::device_manager() | |
120 | { | |
121 | return device_manager_; | |
122 | } | |
123 | ||
124 | const DeviceManager& Session::device_manager() const | |
125 | { | |
126 | return device_manager_; | |
127 | } | |
128 | ||
129 | shared_ptr<sigrok::Session> Session::session() const | |
130 | { | |
131 | if (!device_) | |
132 | return shared_ptr<sigrok::Session>(); | |
133 | return device_->session(); | |
134 | } | |
135 | ||
136 | shared_ptr<devices::Device> Session::device() const | |
137 | { | |
138 | return device_; | |
139 | } | |
140 | ||
141 | QString Session::name() const | |
142 | { | |
143 | return name_; | |
144 | } | |
145 | ||
146 | void Session::set_name(QString name) | |
147 | { | |
148 | if (default_name_.isEmpty()) | |
149 | default_name_ = name; | |
150 | ||
151 | name_ = name; | |
152 | ||
153 | name_changed(); | |
154 | } | |
155 | ||
156 | const std::list< std::shared_ptr<views::ViewBase> > Session::views() const | |
157 | { | |
158 | return views_; | |
159 | } | |
160 | ||
161 | std::shared_ptr<views::ViewBase> Session::main_view() const | |
162 | { | |
163 | return main_view_; | |
164 | } | |
165 | ||
166 | void Session::set_main_bar(std::shared_ptr<pv::toolbars::MainBar> main_bar) | |
167 | { | |
168 | main_bar_ = main_bar; | |
169 | } | |
170 | ||
171 | shared_ptr<pv::toolbars::MainBar> Session::main_bar() const | |
172 | { | |
173 | return main_bar_; | |
174 | } | |
175 | ||
176 | bool Session::data_saved() const | |
177 | { | |
178 | return data_saved_; | |
179 | } | |
180 | ||
181 | void Session::save_settings(QSettings &settings) const | |
182 | { | |
183 | map<string, string> dev_info; | |
184 | list<string> key_list; | |
185 | int stacks = 0, views = 0; | |
186 | ||
187 | if (device_) { | |
188 | shared_ptr<devices::HardwareDevice> hw_device = | |
189 | dynamic_pointer_cast< devices::HardwareDevice >(device_); | |
190 | ||
191 | if (hw_device) { | |
192 | settings.setValue("device_type", "hardware"); | |
193 | settings.beginGroup("device"); | |
194 | ||
195 | key_list.push_back("vendor"); | |
196 | key_list.push_back("model"); | |
197 | key_list.push_back("version"); | |
198 | key_list.push_back("serial_num"); | |
199 | key_list.push_back("connection_id"); | |
200 | ||
201 | dev_info = device_manager_.get_device_info(device_); | |
202 | ||
203 | for (string key : key_list) { | |
204 | if (dev_info.count(key)) | |
205 | settings.setValue(QString::fromUtf8(key.c_str()), | |
206 | QString::fromUtf8(dev_info.at(key).c_str())); | |
207 | else | |
208 | settings.remove(QString::fromUtf8(key.c_str())); | |
209 | } | |
210 | ||
211 | settings.endGroup(); | |
212 | } | |
213 | ||
214 | shared_ptr<devices::SessionFile> sessionfile_device = | |
215 | dynamic_pointer_cast< devices::SessionFile >(device_); | |
216 | ||
217 | if (sessionfile_device) { | |
218 | settings.setValue("device_type", "sessionfile"); | |
219 | settings.beginGroup("device"); | |
220 | settings.setValue("filename", QString::fromStdString( | |
221 | sessionfile_device->full_name())); | |
222 | settings.endGroup(); | |
223 | } | |
224 | ||
225 | // Save channels and decoders | |
226 | for (shared_ptr<data::SignalBase> base : signalbases_) { | |
227 | #ifdef ENABLE_DECODE | |
228 | if (base->is_decode_signal()) { | |
229 | shared_ptr<pv::data::DecoderStack> decoder_stack = | |
230 | base->decoder_stack(); | |
231 | std::shared_ptr<data::decode::Decoder> top_decoder = | |
232 | decoder_stack->stack().front(); | |
233 | ||
234 | settings.beginGroup("decoder_stack" + QString::number(stacks++)); | |
235 | settings.setValue("id", top_decoder->decoder()->id); | |
236 | settings.setValue("name", top_decoder->decoder()->name); | |
237 | settings.endGroup(); | |
238 | } else | |
239 | #endif | |
240 | { | |
241 | settings.beginGroup(base->internal_name()); | |
242 | base->save_settings(settings); | |
243 | settings.endGroup(); | |
244 | } | |
245 | } | |
246 | ||
247 | settings.setValue("decoder_stacks", stacks); | |
248 | ||
249 | // Save view states and their signal settings | |
250 | // Note: main_view must be saved as view0 | |
251 | settings.beginGroup("view" + QString::number(views++)); | |
252 | main_view_->save_settings(settings); | |
253 | settings.endGroup(); | |
254 | ||
255 | for (shared_ptr<views::ViewBase> view : views_) { | |
256 | if (view != main_view_) { | |
257 | settings.beginGroup("view" + QString::number(views++)); | |
258 | view->save_settings(settings); | |
259 | settings.endGroup(); | |
260 | } | |
261 | } | |
262 | ||
263 | settings.setValue("views", views); | |
264 | } | |
265 | } | |
266 | ||
267 | void Session::restore_settings(QSettings &settings) | |
268 | { | |
269 | shared_ptr<devices::Device> device; | |
270 | ||
271 | QString device_type = settings.value("device_type").toString(); | |
272 | ||
273 | if (device_type == "hardware") { | |
274 | map<string, string> dev_info; | |
275 | list<string> key_list; | |
276 | ||
277 | // Re-select last used device if possible but only if it's not demo | |
278 | settings.beginGroup("device"); | |
279 | key_list.push_back("vendor"); | |
280 | key_list.push_back("model"); | |
281 | key_list.push_back("version"); | |
282 | key_list.push_back("serial_num"); | |
283 | key_list.push_back("connection_id"); | |
284 | ||
285 | for (string key : key_list) { | |
286 | const QString k = QString::fromStdString(key); | |
287 | if (!settings.contains(k)) | |
288 | continue; | |
289 | ||
290 | const string value = settings.value(k).toString().toStdString(); | |
291 | if (!value.empty()) | |
292 | dev_info.insert(std::make_pair(key, value)); | |
293 | } | |
294 | ||
295 | if (dev_info.count("model") > 0) | |
296 | device = device_manager_.find_device_from_info(dev_info); | |
297 | ||
298 | if (device) | |
299 | set_device(device); | |
300 | ||
301 | settings.endGroup(); | |
302 | } | |
303 | ||
304 | if (device_type == "sessionfile") { | |
305 | settings.beginGroup("device"); | |
306 | QString filename = settings.value("filename").toString(); | |
307 | settings.endGroup(); | |
308 | ||
309 | if (QFileInfo(filename).isReadable()) { | |
310 | device = std::make_shared<devices::SessionFile>(device_manager_.context(), | |
311 | filename.toStdString()); | |
312 | set_device(device); | |
313 | ||
314 | // TODO Perform error handling | |
315 | start_capture([](QString infoMessage) { (void)infoMessage; }); | |
316 | ||
317 | set_name(QFileInfo(filename).fileName()); | |
318 | } | |
319 | } | |
320 | ||
321 | if (device) { | |
322 | // Restore channels | |
323 | for (shared_ptr<data::SignalBase> base : signalbases_) { | |
324 | settings.beginGroup(base->internal_name()); | |
325 | base->restore_settings(settings); | |
326 | settings.endGroup(); | |
327 | } | |
328 | ||
329 | // Restore decoders | |
330 | #ifdef ENABLE_DECODE | |
331 | int stacks = settings.value("decoder_stacks").toInt(); | |
332 | ||
333 | for (int i = 0; i < stacks; i++) { | |
334 | settings.beginGroup("decoder_stack" + QString::number(i++)); | |
335 | ||
336 | QString id = settings.value("id").toString(); | |
337 | add_decoder(srd_decoder_get_by_id(id.toStdString().c_str())); | |
338 | ||
339 | settings.endGroup(); | |
340 | } | |
341 | #endif | |
342 | ||
343 | // Restore views | |
344 | int views = settings.value("views").toInt(); | |
345 | ||
346 | for (int i = 0; i < views; i++) { | |
347 | settings.beginGroup("view" + QString::number(i)); | |
348 | ||
349 | if (i > 0) { | |
350 | views::ViewType type = (views::ViewType)settings.value("type").toInt(); | |
351 | add_view(name_, type, this); | |
352 | views_.back()->restore_settings(settings); | |
353 | } else | |
354 | main_view_->restore_settings(settings); | |
355 | ||
356 | settings.endGroup(); | |
357 | } | |
358 | } | |
359 | } | |
360 | ||
361 | void Session::select_device(shared_ptr<devices::Device> device) | |
362 | { | |
363 | try { | |
364 | if (device) | |
365 | set_device(device); | |
366 | else | |
367 | set_default_device(); | |
368 | } catch (const QString &e) { | |
369 | main_bar_->session_error(tr("Failed to Select Device"), | |
370 | tr("Failed to Select Device")); | |
371 | } | |
372 | } | |
373 | ||
374 | void Session::set_device(shared_ptr<devices::Device> device) | |
375 | { | |
376 | assert(device); | |
377 | ||
378 | // Ensure we are not capturing before setting the device | |
379 | stop_capture(); | |
380 | ||
381 | if (device_) | |
382 | device_->close(); | |
383 | ||
384 | device_.reset(); | |
385 | ||
386 | // Revert name back to default name (e.g. "Untitled-1") as the data is gone | |
387 | name_ = default_name_; | |
388 | name_changed(); | |
389 | ||
390 | // Remove all stored data | |
391 | for (std::shared_ptr<views::ViewBase> view : views_) { | |
392 | view->clear_signals(); | |
393 | #ifdef ENABLE_DECODE | |
394 | view->clear_decode_signals(); | |
395 | #endif | |
396 | } | |
397 | for (const shared_ptr<data::SignalData> d : all_signal_data_) | |
398 | d->clear(); | |
399 | all_signal_data_.clear(); | |
400 | signalbases_.clear(); | |
401 | cur_logic_segment_.reset(); | |
402 | ||
403 | for (auto entry : cur_analog_segments_) { | |
404 | shared_ptr<sigrok::Channel>(entry.first).reset(); | |
405 | shared_ptr<data::AnalogSegment>(entry.second).reset(); | |
406 | } | |
407 | ||
408 | logic_data_.reset(); | |
409 | ||
410 | signals_changed(); | |
411 | ||
412 | device_ = std::move(device); | |
413 | ||
414 | try { | |
415 | device_->open(); | |
416 | } catch (const QString &e) { | |
417 | device_.reset(); | |
418 | device_changed(); | |
419 | throw; | |
420 | } | |
421 | ||
422 | device_->session()->add_datafeed_callback([=] | |
423 | (shared_ptr<sigrok::Device> device, shared_ptr<Packet> packet) { | |
424 | data_feed_in(device, packet); | |
425 | }); | |
426 | ||
427 | update_signals(); | |
428 | device_changed(); | |
429 | } | |
430 | ||
431 | void Session::set_default_device() | |
432 | { | |
433 | const list< shared_ptr<devices::HardwareDevice> > &devices = | |
434 | device_manager_.devices(); | |
435 | ||
436 | if (devices.empty()) | |
437 | return; | |
438 | ||
439 | // Try and find the demo device and select that by default | |
440 | const auto iter = std::find_if(devices.begin(), devices.end(), | |
441 | [] (const shared_ptr<devices::HardwareDevice> &d) { | |
442 | return d->hardware_device()->driver()->name() == | |
443 | "demo"; }); | |
444 | set_device((iter == devices.end()) ? devices.front() : *iter); | |
445 | } | |
446 | ||
447 | void Session::load_init_file(const std::string &file_name, | |
448 | const std::string &format) | |
449 | { | |
450 | shared_ptr<InputFormat> input_format; | |
451 | ||
452 | if (!format.empty()) { | |
453 | const map<string, shared_ptr<InputFormat> > formats = | |
454 | device_manager_.context()->input_formats(); | |
455 | const auto iter = find_if(formats.begin(), formats.end(), | |
456 | [&](const pair<string, shared_ptr<InputFormat> > f) { | |
457 | return f.first == format; }); | |
458 | if (iter == formats.end()) { | |
459 | main_bar_->session_error(tr("Error"), | |
460 | tr("Unexpected input format: %s").arg(QString::fromStdString(format))); | |
461 | return; | |
462 | } | |
463 | ||
464 | input_format = (*iter).second; | |
465 | } | |
466 | ||
467 | load_file(QString::fromStdString(file_name), input_format); | |
468 | } | |
469 | ||
470 | void Session::load_file(QString file_name, | |
471 | std::shared_ptr<sigrok::InputFormat> format, | |
472 | const std::map<std::string, Glib::VariantBase> &options) | |
473 | { | |
474 | const QString errorMessage( | |
475 | QString("Failed to load file %1").arg(file_name)); | |
476 | ||
477 | try { | |
478 | if (format) | |
479 | set_device(shared_ptr<devices::Device>( | |
480 | new devices::InputFile( | |
481 | device_manager_.context(), | |
482 | file_name.toStdString(), | |
483 | format, options))); | |
484 | else | |
485 | set_device(shared_ptr<devices::Device>( | |
486 | new devices::SessionFile( | |
487 | device_manager_.context(), | |
488 | file_name.toStdString()))); | |
489 | } catch (Error e) { | |
490 | main_bar_->session_error(tr("Failed to load ") + file_name, e.what()); | |
491 | set_default_device(); | |
492 | main_bar_->update_device_list(); | |
493 | return; | |
494 | } | |
495 | ||
496 | main_bar_->update_device_list(); | |
497 | ||
498 | start_capture([&, errorMessage](QString infoMessage) { | |
499 | main_bar_->session_error(errorMessage, infoMessage); }); | |
500 | ||
501 | set_name(QFileInfo(file_name).fileName()); | |
502 | } | |
503 | ||
504 | Session::capture_state Session::get_capture_state() const | |
505 | { | |
506 | lock_guard<mutex> lock(sampling_mutex_); | |
507 | return capture_state_; | |
508 | } | |
509 | ||
510 | void Session::start_capture(function<void (const QString)> error_handler) | |
511 | { | |
512 | if (!device_) { | |
513 | error_handler(tr("No active device set, can't start acquisition.")); | |
514 | return; | |
515 | } | |
516 | ||
517 | stop_capture(); | |
518 | ||
519 | // Check that at least one channel is enabled | |
520 | const shared_ptr<sigrok::Device> sr_dev = device_->device(); | |
521 | if (sr_dev) { | |
522 | const auto channels = sr_dev->channels(); | |
523 | if (!std::any_of(channels.begin(), channels.end(), | |
524 | [](shared_ptr<Channel> channel) { | |
525 | return channel->enabled(); })) { | |
526 | error_handler(tr("No channels enabled.")); | |
527 | return; | |
528 | } | |
529 | } | |
530 | ||
531 | // Clear signal data | |
532 | for (const shared_ptr<data::SignalData> d : all_signal_data_) | |
533 | d->clear(); | |
534 | ||
535 | // Revert name back to default name (e.g. "Untitled-1") as the data is gone | |
536 | name_ = default_name_; | |
537 | name_changed(); | |
538 | ||
539 | // Begin the session | |
540 | sampling_thread_ = std::thread( | |
541 | &Session::sample_thread_proc, this, error_handler); | |
542 | } | |
543 | ||
544 | void Session::stop_capture() | |
545 | { | |
546 | if (get_capture_state() != Stopped) | |
547 | device_->stop(); | |
548 | ||
549 | // Check that sampling stopped | |
550 | if (sampling_thread_.joinable()) | |
551 | sampling_thread_.join(); | |
552 | } | |
553 | ||
554 | void Session::register_view(std::shared_ptr<views::ViewBase> view) | |
555 | { | |
556 | if (views_.empty()) { | |
557 | main_view_ = view; | |
558 | } | |
559 | ||
560 | views_.push_back(view); | |
561 | ||
562 | update_signals(); | |
563 | } | |
564 | ||
565 | void Session::deregister_view(std::shared_ptr<views::ViewBase> view) | |
566 | { | |
567 | views_.remove_if([&](std::shared_ptr<views::ViewBase> v) { | |
568 | return v == view; }); | |
569 | ||
570 | if (views_.empty()) { | |
571 | main_view_.reset(); | |
572 | ||
573 | // Without a view there can be no main bar | |
574 | main_bar_.reset(); | |
575 | } | |
576 | } | |
577 | ||
578 | bool Session::has_view(std::shared_ptr<views::ViewBase> view) | |
579 | { | |
580 | for (std::shared_ptr<views::ViewBase> v : views_) | |
581 | if (v == view) | |
582 | return true; | |
583 | ||
584 | return false; | |
585 | } | |
586 | ||
587 | double Session::get_samplerate() const | |
588 | { | |
589 | double samplerate = 0.0; | |
590 | ||
591 | for (const shared_ptr<pv::data::SignalData> d : all_signal_data_) { | |
592 | assert(d); | |
593 | const vector< shared_ptr<pv::data::Segment> > segments = | |
594 | d->segments(); | |
595 | for (const shared_ptr<pv::data::Segment> &s : segments) | |
596 | samplerate = std::max(samplerate, s->samplerate()); | |
597 | } | |
598 | // If there is no sample rate given we use samples as unit | |
599 | if (samplerate == 0.0) | |
600 | samplerate = 1.0; | |
601 | ||
602 | return samplerate; | |
603 | } | |
604 | ||
605 | const std::unordered_set< std::shared_ptr<data::SignalBase> > | |
606 | Session::signalbases() const | |
607 | { | |
608 | return signalbases_; | |
609 | } | |
610 | ||
611 | #ifdef ENABLE_DECODE | |
612 | bool Session::add_decoder(srd_decoder *const dec) | |
613 | { | |
614 | map<const srd_channel*, shared_ptr<data::SignalBase> > channels; | |
615 | shared_ptr<data::DecoderStack> decoder_stack; | |
616 | ||
617 | try { | |
618 | // Create the decoder | |
619 | decoder_stack = shared_ptr<data::DecoderStack>( | |
620 | new data::DecoderStack(*this, dec)); | |
621 | ||
622 | // Make a list of all the channels | |
623 | std::vector<const srd_channel*> all_channels; | |
624 | for (const GSList *i = dec->channels; i; i = i->next) | |
625 | all_channels.push_back((const srd_channel*)i->data); | |
626 | for (const GSList *i = dec->opt_channels; i; i = i->next) | |
627 | all_channels.push_back((const srd_channel*)i->data); | |
628 | ||
629 | // Auto select the initial channels | |
630 | for (const srd_channel *pdch : all_channels) | |
631 | for (shared_ptr<data::SignalBase> b : signalbases_) { | |
632 | if (b->type() == ChannelType::LOGIC) { | |
633 | if (QString::fromUtf8(pdch->name).toLower(). | |
634 | contains(b->name().toLower())) | |
635 | channels[pdch] = b; | |
636 | } | |
637 | } | |
638 | ||
639 | assert(decoder_stack); | |
640 | assert(!decoder_stack->stack().empty()); | |
641 | assert(decoder_stack->stack().front()); | |
642 | decoder_stack->stack().front()->set_channels(channels); | |
643 | ||
644 | // Create the decode signal | |
645 | shared_ptr<data::SignalBase> signalbase = | |
646 | shared_ptr<data::SignalBase>(new data::SignalBase(nullptr)); | |
647 | ||
648 | signalbase->set_decoder_stack(decoder_stack); | |
649 | signalbases_.insert(signalbase); | |
650 | ||
651 | for (std::shared_ptr<views::ViewBase> view : views_) | |
652 | view->add_decode_signal(signalbase); | |
653 | } catch (std::runtime_error e) { | |
654 | return false; | |
655 | } | |
656 | ||
657 | signals_changed(); | |
658 | ||
659 | // Do an initial decode | |
660 | decoder_stack->begin_decode(); | |
661 | ||
662 | return true; | |
663 | } | |
664 | ||
665 | void Session::remove_decode_signal(shared_ptr<data::SignalBase> signalbase) | |
666 | { | |
667 | signalbases_.erase(signalbase); | |
668 | ||
669 | for (std::shared_ptr<views::ViewBase> view : views_) | |
670 | view->remove_decode_signal(signalbase); | |
671 | ||
672 | signals_changed(); | |
673 | } | |
674 | #endif | |
675 | ||
676 | void Session::set_capture_state(capture_state state) | |
677 | { | |
678 | bool changed; | |
679 | ||
680 | { | |
681 | lock_guard<mutex> lock(sampling_mutex_); | |
682 | changed = capture_state_ != state; | |
683 | capture_state_ = state; | |
684 | } | |
685 | ||
686 | if (changed) | |
687 | capture_state_changed(state); | |
688 | } | |
689 | ||
690 | void Session::update_signals() | |
691 | { | |
692 | if (!device_) { | |
693 | signalbases_.clear(); | |
694 | logic_data_.reset(); | |
695 | for (std::shared_ptr<views::ViewBase> view : views_) { | |
696 | view->clear_signals(); | |
697 | #ifdef ENABLE_DECODE | |
698 | view->clear_decode_signals(); | |
699 | #endif | |
700 | } | |
701 | return; | |
702 | } | |
703 | ||
704 | lock_guard<recursive_mutex> lock(data_mutex_); | |
705 | ||
706 | const shared_ptr<sigrok::Device> sr_dev = device_->device(); | |
707 | if (!sr_dev) { | |
708 | signalbases_.clear(); | |
709 | logic_data_.reset(); | |
710 | for (std::shared_ptr<views::ViewBase> view : views_) { | |
711 | view->clear_signals(); | |
712 | #ifdef ENABLE_DECODE | |
713 | view->clear_decode_signals(); | |
714 | #endif | |
715 | } | |
716 | return; | |
717 | } | |
718 | ||
719 | // Detect what data types we will receive | |
720 | auto channels = sr_dev->channels(); | |
721 | unsigned int logic_channel_count = std::count_if( | |
722 | channels.begin(), channels.end(), | |
723 | [] (shared_ptr<Channel> channel) { | |
724 | return channel->type() == ChannelType::LOGIC; }); | |
725 | ||
726 | // Create data containers for the logic data segments | |
727 | { | |
728 | lock_guard<recursive_mutex> data_lock(data_mutex_); | |
729 | ||
730 | if (logic_channel_count == 0) { | |
731 | logic_data_.reset(); | |
732 | } else if (!logic_data_ || | |
733 | logic_data_->num_channels() != logic_channel_count) { | |
734 | logic_data_.reset(new data::Logic( | |
735 | logic_channel_count)); | |
736 | assert(logic_data_); | |
737 | } | |
738 | } | |
739 | ||
740 | // Make the signals list | |
741 | for (std::shared_ptr<views::ViewBase> viewbase : views_) { | |
742 | views::TraceView::View *trace_view = | |
743 | qobject_cast<views::TraceView::View*>(viewbase.get()); | |
744 | ||
745 | if (trace_view) { | |
746 | unordered_set< shared_ptr<views::TraceView::Signal> > | |
747 | prev_sigs(trace_view->signals()); | |
748 | trace_view->clear_signals(); | |
749 | ||
750 | for (auto channel : sr_dev->channels()) { | |
751 | shared_ptr<data::SignalBase> signalbase; | |
752 | shared_ptr<views::TraceView::Signal> signal; | |
753 | ||
754 | // Find the channel in the old signals | |
755 | const auto iter = std::find_if( | |
756 | prev_sigs.cbegin(), prev_sigs.cend(), | |
757 | [&](const shared_ptr<views::TraceView::Signal> &s) { | |
758 | return s->base()->channel() == channel; | |
759 | }); | |
760 | if (iter != prev_sigs.end()) { | |
761 | // Copy the signal from the old set to the new | |
762 | signal = *iter; | |
763 | trace_view->add_signal(signal); | |
764 | } else { | |
765 | // Find the signalbase for this channel if possible | |
766 | signalbase.reset(); | |
767 | for (const shared_ptr<data::SignalBase> b : signalbases_) | |
768 | if (b->channel() == channel) | |
769 | signalbase = b; | |
770 | ||
771 | switch(channel->type()->id()) { | |
772 | case SR_CHANNEL_LOGIC: | |
773 | if (!signalbase) { | |
774 | signalbase = shared_ptr<data::SignalBase>( | |
775 | new data::SignalBase(channel)); | |
776 | signalbases_.insert(signalbase); | |
777 | ||
778 | all_signal_data_.insert(logic_data_); | |
779 | signalbase->set_data(logic_data_); | |
780 | } | |
781 | ||
782 | signal = shared_ptr<views::TraceView::Signal>( | |
783 | new views::TraceView::LogicSignal(*this, | |
784 | device_, signalbase)); | |
785 | trace_view->add_signal(signal); | |
786 | break; | |
787 | ||
788 | case SR_CHANNEL_ANALOG: | |
789 | { | |
790 | if (!signalbase) { | |
791 | signalbase = shared_ptr<data::SignalBase>( | |
792 | new data::SignalBase(channel)); | |
793 | signalbases_.insert(signalbase); | |
794 | ||
795 | shared_ptr<data::Analog> data(new data::Analog()); | |
796 | all_signal_data_.insert(data); | |
797 | signalbase->set_data(data); | |
798 | } | |
799 | ||
800 | signal = shared_ptr<views::TraceView::Signal>( | |
801 | new views::TraceView::AnalogSignal( | |
802 | *this, signalbase)); | |
803 | trace_view->add_signal(signal); | |
804 | break; | |
805 | } | |
806 | ||
807 | default: | |
808 | assert(0); | |
809 | break; | |
810 | } | |
811 | } | |
812 | } | |
813 | } | |
814 | } | |
815 | ||
816 | signals_changed(); | |
817 | } | |
818 | ||
819 | shared_ptr<data::SignalBase> Session::signalbase_from_channel( | |
820 | shared_ptr<sigrok::Channel> channel) const | |
821 | { | |
822 | for (shared_ptr<data::SignalBase> sig : signalbases_) { | |
823 | assert(sig); | |
824 | if (sig->channel() == channel) | |
825 | return sig; | |
826 | } | |
827 | return shared_ptr<data::SignalBase>(); | |
828 | } | |
829 | ||
830 | void Session::sample_thread_proc(function<void (const QString)> error_handler) | |
831 | { | |
832 | assert(error_handler); | |
833 | ||
834 | if (!device_) | |
835 | return; | |
836 | ||
837 | cur_samplerate_ = device_->read_config<uint64_t>(ConfigKey::SAMPLERATE); | |
838 | ||
839 | out_of_memory_ = false; | |
840 | ||
841 | try { | |
842 | device_->start(); | |
843 | } catch (Error e) { | |
844 | error_handler(e.what()); | |
845 | return; | |
846 | } | |
847 | ||
848 | set_capture_state(device_->session()->trigger() ? | |
849 | AwaitingTrigger : Running); | |
850 | ||
851 | device_->run(); | |
852 | set_capture_state(Stopped); | |
853 | ||
854 | // Confirm that SR_DF_END was received | |
855 | if (cur_logic_segment_) { | |
856 | qDebug("SR_DF_END was not received."); | |
857 | assert(0); | |
858 | } | |
859 | ||
860 | // Optimize memory usage | |
861 | free_unused_memory(); | |
862 | ||
863 | // We now have unsaved data unless we just "captured" from a file | |
864 | shared_ptr<devices::File> file_device = | |
865 | dynamic_pointer_cast<devices::File>(device_); | |
866 | ||
867 | if (!file_device) | |
868 | data_saved_ = false; | |
869 | ||
870 | if (out_of_memory_) | |
871 | error_handler(tr("Out of memory, acquisition stopped.")); | |
872 | } | |
873 | ||
874 | void Session::free_unused_memory() | |
875 | { | |
876 | for (shared_ptr<data::SignalData> data : all_signal_data_) { | |
877 | const vector< shared_ptr<data::Segment> > segments = data->segments(); | |
878 | ||
879 | for (shared_ptr<data::Segment> segment : segments) { | |
880 | segment->free_unused_memory(); | |
881 | } | |
882 | } | |
883 | } | |
884 | ||
885 | void Session::feed_in_header() | |
886 | { | |
887 | cur_samplerate_ = device_->read_config<uint64_t>(ConfigKey::SAMPLERATE); | |
888 | } | |
889 | ||
890 | void Session::feed_in_meta(shared_ptr<Meta> meta) | |
891 | { | |
892 | for (auto entry : meta->config()) { | |
893 | switch (entry.first->id()) { | |
894 | case SR_CONF_SAMPLERATE: | |
895 | // We can't rely on the header to always contain the sample rate, | |
896 | // so in case it's supplied via a meta packet, we use it. | |
897 | if (!cur_samplerate_) | |
898 | cur_samplerate_ = g_variant_get_uint64(entry.second.gobj()); | |
899 | ||
900 | /// @todo handle samplerate changes | |
901 | break; | |
902 | default: | |
903 | // Unknown metadata is not an error. | |
904 | break; | |
905 | } | |
906 | } | |
907 | ||
908 | signals_changed(); | |
909 | } | |
910 | ||
911 | void Session::feed_in_trigger() | |
912 | { | |
913 | // The channel containing most samples should be most accurate | |
914 | uint64_t sample_count = 0; | |
915 | ||
916 | { | |
917 | for (const shared_ptr<pv::data::SignalData> d : all_signal_data_) { | |
918 | assert(d); | |
919 | uint64_t temp_count = 0; | |
920 | ||
921 | const vector< shared_ptr<pv::data::Segment> > segments = | |
922 | d->segments(); | |
923 | for (const shared_ptr<pv::data::Segment> &s : segments) | |
924 | temp_count += s->get_sample_count(); | |
925 | ||
926 | if (temp_count > sample_count) | |
927 | sample_count = temp_count; | |
928 | } | |
929 | } | |
930 | ||
931 | trigger_event(sample_count / get_samplerate()); | |
932 | } | |
933 | ||
934 | void Session::feed_in_frame_begin() | |
935 | { | |
936 | if (cur_logic_segment_ || !cur_analog_segments_.empty()) | |
937 | frame_began(); | |
938 | } | |
939 | ||
940 | void Session::feed_in_logic(shared_ptr<Logic> logic) | |
941 | { | |
942 | lock_guard<recursive_mutex> lock(data_mutex_); | |
943 | ||
944 | if (!logic_data_) { | |
945 | // The only reason logic_data_ would not have been created is | |
946 | // if it was not possible to determine the signals when the | |
947 | // device was created. | |
948 | update_signals(); | |
949 | } | |
950 | ||
951 | if (!cur_logic_segment_) { | |
952 | // This could be the first packet after a trigger | |
953 | set_capture_state(Running); | |
954 | ||
955 | // Create a new data segment | |
956 | cur_logic_segment_ = shared_ptr<data::LogicSegment>( | |
957 | new data::LogicSegment(*logic_data_, logic, cur_samplerate_)); | |
958 | logic_data_->push_segment(cur_logic_segment_); | |
959 | ||
960 | // @todo Putting this here means that only listeners querying | |
961 | // for logic will be notified. Currently the only user of | |
962 | // frame_began is DecoderStack, but in future we need to signal | |
963 | // this after both analog and logic sweeps have begun. | |
964 | frame_began(); | |
965 | } else { | |
966 | // Append to the existing data segment | |
967 | cur_logic_segment_->append_payload(logic); | |
968 | } | |
969 | ||
970 | data_received(); | |
971 | } | |
972 | ||
973 | void Session::feed_in_analog(shared_ptr<Analog> analog) | |
974 | { | |
975 | lock_guard<recursive_mutex> lock(data_mutex_); | |
976 | ||
977 | const vector<shared_ptr<Channel>> channels = analog->channels(); | |
978 | const unsigned int channel_count = channels.size(); | |
979 | const size_t sample_count = analog->num_samples() / channel_count; | |
980 | const float *data = static_cast<const float *>(analog->data_pointer()); | |
981 | bool sweep_beginning = false; | |
982 | ||
983 | if (signalbases_.empty()) | |
984 | update_signals(); | |
985 | ||
986 | for (auto channel : channels) { | |
987 | shared_ptr<data::AnalogSegment> segment; | |
988 | ||
989 | // Try to get the segment of the channel | |
990 | const map< shared_ptr<Channel>, shared_ptr<data::AnalogSegment> >:: | |
991 | iterator iter = cur_analog_segments_.find(channel); | |
992 | if (iter != cur_analog_segments_.end()) | |
993 | segment = (*iter).second; | |
994 | else { | |
995 | // If no segment was found, this means we haven't | |
996 | // created one yet. i.e. this is the first packet | |
997 | // in the sweep containing this segment. | |
998 | sweep_beginning = true; | |
999 | ||
1000 | // Find the analog data associated with the channel | |
1001 | shared_ptr<data::SignalBase> base = signalbase_from_channel(channel); | |
1002 | assert(base); | |
1003 | ||
1004 | shared_ptr<data::Analog> data(base->analog_data()); | |
1005 | assert(data); | |
1006 | ||
1007 | // Create a segment, keep it in the maps of channels | |
1008 | segment = shared_ptr<data::AnalogSegment>( | |
1009 | new data::AnalogSegment(*data, cur_samplerate_)); | |
1010 | cur_analog_segments_[channel] = segment; | |
1011 | ||
1012 | // Push the segment into the analog data. | |
1013 | data->push_segment(segment); | |
1014 | } | |
1015 | ||
1016 | assert(segment); | |
1017 | ||
1018 | // Append the samples in the segment | |
1019 | segment->append_interleaved_samples(data++, sample_count, | |
1020 | channel_count); | |
1021 | } | |
1022 | ||
1023 | if (sweep_beginning) { | |
1024 | // This could be the first packet after a trigger | |
1025 | set_capture_state(Running); | |
1026 | } | |
1027 | ||
1028 | data_received(); | |
1029 | } | |
1030 | ||
1031 | void Session::data_feed_in(shared_ptr<sigrok::Device> device, | |
1032 | shared_ptr<Packet> packet) | |
1033 | { | |
1034 | static bool frame_began=false; | |
1035 | ||
1036 | (void)device; | |
1037 | ||
1038 | assert(device); | |
1039 | assert(device == device_->device()); | |
1040 | assert(packet); | |
1041 | ||
1042 | switch (packet->type()->id()) { | |
1043 | case SR_DF_HEADER: | |
1044 | feed_in_header(); | |
1045 | break; | |
1046 | ||
1047 | case SR_DF_META: | |
1048 | feed_in_meta(dynamic_pointer_cast<Meta>(packet->payload())); | |
1049 | break; | |
1050 | ||
1051 | case SR_DF_TRIGGER: | |
1052 | feed_in_trigger(); | |
1053 | break; | |
1054 | ||
1055 | case SR_DF_FRAME_BEGIN: | |
1056 | feed_in_frame_begin(); | |
1057 | frame_began = true; | |
1058 | break; | |
1059 | ||
1060 | case SR_DF_LOGIC: | |
1061 | try { | |
1062 | feed_in_logic(dynamic_pointer_cast<Logic>(packet->payload())); | |
1063 | } catch (std::bad_alloc) { | |
1064 | out_of_memory_ = true; | |
1065 | device_->stop(); | |
1066 | } | |
1067 | break; | |
1068 | ||
1069 | case SR_DF_ANALOG: | |
1070 | try { | |
1071 | feed_in_analog(dynamic_pointer_cast<Analog>(packet->payload())); | |
1072 | } catch (std::bad_alloc) { | |
1073 | out_of_memory_ = true; | |
1074 | device_->stop(); | |
1075 | } | |
1076 | break; | |
1077 | ||
1078 | case SR_DF_FRAME_END: | |
1079 | case SR_DF_END: | |
1080 | { | |
1081 | { | |
1082 | lock_guard<recursive_mutex> lock(data_mutex_); | |
1083 | cur_logic_segment_.reset(); | |
1084 | cur_analog_segments_.clear(); | |
1085 | } | |
1086 | if (frame_began) { | |
1087 | frame_began = false; | |
1088 | frame_ended(); | |
1089 | } | |
1090 | break; | |
1091 | } | |
1092 | default: | |
1093 | break; | |
1094 | } | |
1095 | } | |
1096 | ||
1097 | void Session::on_data_saved() | |
1098 | { | |
1099 | data_saved_ = true; | |
1100 | } | |
1101 | ||
1102 | } // namespace pv |