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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, write to the Free Software | |
18 | * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA | |
19 | */ | |
20 | ||
21 | #ifdef _WIN32 | |
22 | // Windows: Avoid boost/thread namespace pollution (which includes windows.h). | |
23 | #define NOGDI | |
24 | #define NORESOURCE | |
25 | #endif | |
26 | #include <boost/thread/locks.hpp> | |
27 | #include <boost/thread/shared_mutex.hpp> | |
28 | ||
29 | #ifdef ENABLE_DECODE | |
30 | #include <libsigrokdecode/libsigrokdecode.h> | |
31 | #endif | |
32 | ||
33 | #include "session.hpp" | |
34 | ||
35 | #include "devicemanager.hpp" | |
36 | ||
37 | #include "data/analog.hpp" | |
38 | #include "data/analogsegment.hpp" | |
39 | #include "data/decoderstack.hpp" | |
40 | #include "data/logic.hpp" | |
41 | #include "data/logicsegment.hpp" | |
42 | #include "data/signalbase.hpp" | |
43 | #include "data/decode/decoder.hpp" | |
44 | ||
45 | #include "devices/hardwaredevice.hpp" | |
46 | #include "devices/sessionfile.hpp" | |
47 | ||
48 | #include "toolbars/mainbar.hpp" | |
49 | ||
50 | #include "view/analogsignal.hpp" | |
51 | #include "view/decodetrace.hpp" | |
52 | #include "view/logicsignal.hpp" | |
53 | #include "view/signal.hpp" | |
54 | #include "view/view.hpp" | |
55 | ||
56 | #include <cassert> | |
57 | #include <mutex> | |
58 | #include <stdexcept> | |
59 | ||
60 | #include <sys/stat.h> | |
61 | ||
62 | #include <QDebug> | |
63 | ||
64 | #include <libsigrokcxx/libsigrokcxx.hpp> | |
65 | ||
66 | using boost::shared_lock; | |
67 | using boost::shared_mutex; | |
68 | using boost::unique_lock; | |
69 | ||
70 | using std::dynamic_pointer_cast; | |
71 | using std::function; | |
72 | using std::lock_guard; | |
73 | using std::list; | |
74 | using std::map; | |
75 | using std::mutex; | |
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::Logic; | |
91 | using sigrok::Meta; | |
92 | using sigrok::Packet; | |
93 | using sigrok::PacketPayload; | |
94 | using sigrok::Session; | |
95 | using sigrok::SessionDevice; | |
96 | ||
97 | using Glib::VariantBase; | |
98 | using Glib::Variant; | |
99 | ||
100 | namespace pv { | |
101 | Session::Session(DeviceManager &device_manager, QString name) : | |
102 | device_manager_(device_manager), | |
103 | name_(name), | |
104 | capture_state_(Stopped), | |
105 | cur_samplerate_(0) | |
106 | { | |
107 | } | |
108 | ||
109 | Session::~Session() | |
110 | { | |
111 | // Stop and join to the thread | |
112 | stop_capture(); | |
113 | } | |
114 | ||
115 | DeviceManager& Session::device_manager() | |
116 | { | |
117 | return device_manager_; | |
118 | } | |
119 | ||
120 | const DeviceManager& Session::device_manager() const | |
121 | { | |
122 | return device_manager_; | |
123 | } | |
124 | ||
125 | shared_ptr<sigrok::Session> Session::session() const | |
126 | { | |
127 | if (!device_) | |
128 | return shared_ptr<sigrok::Session>(); | |
129 | return device_->session(); | |
130 | } | |
131 | ||
132 | shared_ptr<devices::Device> Session::device() const | |
133 | { | |
134 | return device_; | |
135 | } | |
136 | ||
137 | QString Session::name() const | |
138 | { | |
139 | return name_; | |
140 | } | |
141 | ||
142 | void Session::set_name(QString name) | |
143 | { | |
144 | if (default_name_.isEmpty()) | |
145 | default_name_ = name; | |
146 | ||
147 | name_ = name; | |
148 | ||
149 | name_changed(); | |
150 | } | |
151 | ||
152 | std::shared_ptr<pv::view::View> Session::main_view() const | |
153 | { | |
154 | return main_view_; | |
155 | } | |
156 | ||
157 | void Session::set_main_bar(std::shared_ptr<pv::toolbars::MainBar> main_bar) | |
158 | { | |
159 | main_bar_ = main_bar; | |
160 | } | |
161 | ||
162 | shared_ptr<pv::toolbars::MainBar> Session::main_bar() const | |
163 | { | |
164 | return main_bar_; | |
165 | } | |
166 | ||
167 | void Session::save_settings(QSettings &settings) const | |
168 | { | |
169 | map<string, string> dev_info; | |
170 | list<string> key_list; | |
171 | ||
172 | if (device_) { | |
173 | settings.beginGroup("Device"); | |
174 | key_list.push_back("vendor"); | |
175 | key_list.push_back("model"); | |
176 | key_list.push_back("version"); | |
177 | key_list.push_back("serial_num"); | |
178 | key_list.push_back("connection_id"); | |
179 | ||
180 | dev_info = device_manager_.get_device_info(device_); | |
181 | ||
182 | for (string key : key_list) { | |
183 | if (dev_info.count(key)) | |
184 | settings.setValue(QString::fromUtf8(key.c_str()), | |
185 | QString::fromUtf8(dev_info.at(key).c_str())); | |
186 | else | |
187 | settings.remove(QString::fromUtf8(key.c_str())); | |
188 | } | |
189 | ||
190 | // TODO Save channel settings and decoders | |
191 | ||
192 | settings.endGroup(); | |
193 | } | |
194 | } | |
195 | ||
196 | void Session::restore_settings(QSettings &settings) | |
197 | { | |
198 | map<string, string> dev_info; | |
199 | list<string> key_list; | |
200 | shared_ptr<devices::HardwareDevice> device; | |
201 | ||
202 | // Re-select last used device if possible but only if it's not demo | |
203 | settings.beginGroup("Device"); | |
204 | key_list.push_back("vendor"); | |
205 | key_list.push_back("model"); | |
206 | key_list.push_back("version"); | |
207 | key_list.push_back("serial_num"); | |
208 | key_list.push_back("connection_id"); | |
209 | ||
210 | for (string key : key_list) { | |
211 | const QString k = QString::fromStdString(key); | |
212 | if (!settings.contains(k)) | |
213 | continue; | |
214 | ||
215 | const string value = settings.value(k).toString().toStdString(); | |
216 | if (!value.empty()) | |
217 | dev_info.insert(std::make_pair(key, value)); | |
218 | } | |
219 | ||
220 | if (dev_info.count("model") > 0) | |
221 | device = device_manager_.find_device_from_info(dev_info); | |
222 | ||
223 | if (device) { | |
224 | set_device(device); | |
225 | ||
226 | // TODO Restore channel settings and decoders | |
227 | } | |
228 | ||
229 | settings.endGroup(); | |
230 | } | |
231 | ||
232 | void Session::set_device(shared_ptr<devices::Device> device) | |
233 | { | |
234 | assert(device); | |
235 | ||
236 | // Ensure we are not capturing before setting the device | |
237 | stop_capture(); | |
238 | ||
239 | if (device_) | |
240 | device_->close(); | |
241 | ||
242 | device_.reset(); | |
243 | ||
244 | // Revert name back to default name (e.g. "Untitled-1") as the data is gone | |
245 | name_ = default_name_; | |
246 | name_changed(); | |
247 | ||
248 | // Remove all stored data | |
249 | for (std::shared_ptr<pv::view::View> view : views_) { | |
250 | view->clear_signals(); | |
251 | #ifdef ENABLE_DECODE | |
252 | view->clear_decode_traces(); | |
253 | #endif | |
254 | } | |
255 | for (const shared_ptr<data::SignalData> d : all_signal_data_) | |
256 | d->clear(); | |
257 | all_signal_data_.clear(); | |
258 | signalbases_.clear(); | |
259 | cur_logic_segment_.reset(); | |
260 | ||
261 | for (auto entry : cur_analog_segments_) { | |
262 | shared_ptr<sigrok::Channel>(entry.first).reset(); | |
263 | shared_ptr<data::AnalogSegment>(entry.second).reset(); | |
264 | } | |
265 | ||
266 | logic_data_.reset(); | |
267 | ||
268 | signals_changed(); | |
269 | ||
270 | device_ = std::move(device); | |
271 | ||
272 | try { | |
273 | device_->open(); | |
274 | } catch (const QString &e) { | |
275 | device_.reset(); | |
276 | device_selected(); | |
277 | throw; | |
278 | } | |
279 | ||
280 | device_->session()->add_datafeed_callback([=] | |
281 | (shared_ptr<sigrok::Device> device, shared_ptr<Packet> packet) { | |
282 | data_feed_in(device, packet); | |
283 | }); | |
284 | ||
285 | update_signals(); | |
286 | device_selected(); | |
287 | } | |
288 | ||
289 | void Session::set_default_device() | |
290 | { | |
291 | const list< shared_ptr<devices::HardwareDevice> > &devices = | |
292 | device_manager_.devices(); | |
293 | ||
294 | if (devices.empty()) | |
295 | return; | |
296 | ||
297 | // Try and find the demo device and select that by default | |
298 | const auto iter = std::find_if(devices.begin(), devices.end(), | |
299 | [] (const shared_ptr<devices::HardwareDevice> &d) { | |
300 | return d->hardware_device()->driver()->name() == | |
301 | "demo"; }); | |
302 | set_device((iter == devices.end()) ? devices.front() : *iter); | |
303 | } | |
304 | ||
305 | Session::capture_state Session::get_capture_state() const | |
306 | { | |
307 | lock_guard<mutex> lock(sampling_mutex_); | |
308 | return capture_state_; | |
309 | } | |
310 | ||
311 | void Session::start_capture(function<void (const QString)> error_handler) | |
312 | { | |
313 | if (!device_) { | |
314 | error_handler(tr("No active device set, can't start acquisition.")); | |
315 | return; | |
316 | } | |
317 | ||
318 | stop_capture(); | |
319 | ||
320 | // Check that at least one channel is enabled | |
321 | const shared_ptr<sigrok::Device> sr_dev = device_->device(); | |
322 | if (sr_dev) { | |
323 | const auto channels = sr_dev->channels(); | |
324 | if (!std::any_of(channels.begin(), channels.end(), | |
325 | [](shared_ptr<Channel> channel) { | |
326 | return channel->enabled(); })) { | |
327 | error_handler(tr("No channels enabled.")); | |
328 | return; | |
329 | } | |
330 | } | |
331 | ||
332 | // Clear signal data | |
333 | for (const shared_ptr<data::SignalData> d : all_signal_data_) | |
334 | d->clear(); | |
335 | ||
336 | // Revert name back to default name (e.g. "Untitled-1") as the data is gone | |
337 | name_ = default_name_; | |
338 | name_changed(); | |
339 | ||
340 | // Begin the session | |
341 | sampling_thread_ = std::thread( | |
342 | &Session::sample_thread_proc, this, error_handler); | |
343 | } | |
344 | ||
345 | void Session::stop_capture() | |
346 | { | |
347 | if (get_capture_state() != Stopped) | |
348 | device_->stop(); | |
349 | ||
350 | // Check that sampling stopped | |
351 | if (sampling_thread_.joinable()) | |
352 | sampling_thread_.join(); | |
353 | } | |
354 | ||
355 | void Session::register_view(std::shared_ptr<pv::view::View> view) | |
356 | { | |
357 | if (views_.empty()) { | |
358 | main_view_ = view; | |
359 | } | |
360 | ||
361 | views_.insert(view); | |
362 | } | |
363 | ||
364 | void Session::deregister_view(std::shared_ptr<pv::view::View> view) | |
365 | { | |
366 | views_.erase(view); | |
367 | ||
368 | if (views_.empty()) { | |
369 | main_view_.reset(); | |
370 | ||
371 | // Without a view there can be no main bar | |
372 | main_bar_.reset(); | |
373 | } | |
374 | } | |
375 | ||
376 | bool Session::has_view(std::shared_ptr<pv::view::View> view) | |
377 | { | |
378 | return views_.find(view) != views_.end(); | |
379 | } | |
380 | ||
381 | double Session::get_samplerate() const | |
382 | { | |
383 | double samplerate = 0.0; | |
384 | ||
385 | for (const shared_ptr<pv::data::SignalData> d : all_signal_data_) { | |
386 | assert(d); | |
387 | const vector< shared_ptr<pv::data::Segment> > segments = | |
388 | d->segments(); | |
389 | for (const shared_ptr<pv::data::Segment> &s : segments) | |
390 | samplerate = std::max(samplerate, s->samplerate()); | |
391 | } | |
392 | // If there is no sample rate given we use samples as unit | |
393 | if (samplerate == 0.0) | |
394 | samplerate = 1.0; | |
395 | ||
396 | return samplerate; | |
397 | } | |
398 | ||
399 | const std::unordered_set< std::shared_ptr<data::SignalBase> > | |
400 | Session::signalbases() const | |
401 | { | |
402 | return signalbases_; | |
403 | } | |
404 | ||
405 | #ifdef ENABLE_DECODE | |
406 | bool Session::add_decoder(srd_decoder *const dec) | |
407 | { | |
408 | map<const srd_channel*, shared_ptr<data::SignalBase> > channels; | |
409 | shared_ptr<data::DecoderStack> decoder_stack; | |
410 | ||
411 | try { | |
412 | // Create the decoder | |
413 | decoder_stack = shared_ptr<data::DecoderStack>( | |
414 | new data::DecoderStack(*this, dec)); | |
415 | ||
416 | // Make a list of all the channels | |
417 | std::vector<const srd_channel*> all_channels; | |
418 | for (const GSList *i = dec->channels; i; i = i->next) | |
419 | all_channels.push_back((const srd_channel*)i->data); | |
420 | for (const GSList *i = dec->opt_channels; i; i = i->next) | |
421 | all_channels.push_back((const srd_channel*)i->data); | |
422 | ||
423 | // Auto select the initial channels | |
424 | for (const srd_channel *pdch : all_channels) | |
425 | for (shared_ptr<data::SignalBase> b : signalbases_) { | |
426 | if (b->type() == ChannelType::LOGIC) { | |
427 | if (QString::fromUtf8(pdch->name).toLower(). | |
428 | contains(b->name().toLower())) | |
429 | channels[pdch] = b; | |
430 | } | |
431 | } | |
432 | ||
433 | assert(decoder_stack); | |
434 | assert(!decoder_stack->stack().empty()); | |
435 | assert(decoder_stack->stack().front()); | |
436 | decoder_stack->stack().front()->set_channels(channels); | |
437 | ||
438 | // Create the decode signal | |
439 | shared_ptr<data::SignalBase> signalbase = | |
440 | shared_ptr<data::SignalBase>(new data::SignalBase(nullptr)); | |
441 | ||
442 | signalbase->set_decoder_stack(decoder_stack); | |
443 | ||
444 | for (std::shared_ptr<pv::view::View> view : views_) | |
445 | view->add_decode_trace(signalbase); | |
446 | } catch (std::runtime_error e) { | |
447 | return false; | |
448 | } | |
449 | ||
450 | signals_changed(); | |
451 | ||
452 | // Do an initial decode | |
453 | decoder_stack->begin_decode(); | |
454 | ||
455 | return true; | |
456 | } | |
457 | ||
458 | void Session::remove_decode_signal(shared_ptr<data::SignalBase> signalbase) | |
459 | { | |
460 | for (std::shared_ptr<pv::view::View> view : views_) | |
461 | view->remove_decode_trace(signalbase); | |
462 | } | |
463 | #endif | |
464 | ||
465 | void Session::set_capture_state(capture_state state) | |
466 | { | |
467 | bool changed; | |
468 | ||
469 | { | |
470 | lock_guard<mutex> lock(sampling_mutex_); | |
471 | changed = capture_state_ != state; | |
472 | capture_state_ = state; | |
473 | } | |
474 | ||
475 | if (changed) | |
476 | capture_state_changed(state); | |
477 | } | |
478 | ||
479 | void Session::update_signals() | |
480 | { | |
481 | if (!device_) { | |
482 | signalbases_.clear(); | |
483 | logic_data_.reset(); | |
484 | for (std::shared_ptr<pv::view::View> view : views_) { | |
485 | view->clear_signals(); | |
486 | #ifdef ENABLE_DECODE | |
487 | view->clear_decode_traces(); | |
488 | #endif | |
489 | } | |
490 | return; | |
491 | } | |
492 | ||
493 | lock_guard<recursive_mutex> lock(data_mutex_); | |
494 | ||
495 | const shared_ptr<sigrok::Device> sr_dev = device_->device(); | |
496 | if (!sr_dev) { | |
497 | signalbases_.clear(); | |
498 | logic_data_.reset(); | |
499 | for (std::shared_ptr<pv::view::View> view : views_) { | |
500 | view->clear_signals(); | |
501 | #ifdef ENABLE_DECODE | |
502 | view->clear_decode_traces(); | |
503 | #endif | |
504 | } | |
505 | return; | |
506 | } | |
507 | ||
508 | // Detect what data types we will receive | |
509 | auto channels = sr_dev->channels(); | |
510 | unsigned int logic_channel_count = std::count_if( | |
511 | channels.begin(), channels.end(), | |
512 | [] (shared_ptr<Channel> channel) { | |
513 | return channel->type() == ChannelType::LOGIC; }); | |
514 | ||
515 | // Create data containers for the logic data segments | |
516 | { | |
517 | lock_guard<recursive_mutex> data_lock(data_mutex_); | |
518 | ||
519 | if (logic_channel_count == 0) { | |
520 | logic_data_.reset(); | |
521 | } else if (!logic_data_ || | |
522 | logic_data_->num_channels() != logic_channel_count) { | |
523 | logic_data_.reset(new data::Logic( | |
524 | logic_channel_count)); | |
525 | assert(logic_data_); | |
526 | } | |
527 | } | |
528 | ||
529 | // Make the signals list | |
530 | for (std::shared_ptr<pv::view::View> view : views_) { | |
531 | unordered_set< shared_ptr<view::Signal> > prev_sigs(view->signals()); | |
532 | view->clear_signals(); | |
533 | ||
534 | for (auto channel : sr_dev->channels()) { | |
535 | shared_ptr<data::SignalBase> signalbase; | |
536 | shared_ptr<view::Signal> signal; | |
537 | ||
538 | // Find the channel in the old signals | |
539 | const auto iter = std::find_if( | |
540 | prev_sigs.cbegin(), prev_sigs.cend(), | |
541 | [&](const shared_ptr<view::Signal> &s) { | |
542 | return s->base()->channel() == channel; | |
543 | }); | |
544 | if (iter != prev_sigs.end()) { | |
545 | // Copy the signal from the old set to the new | |
546 | signal = *iter; | |
547 | } else { | |
548 | // Find the signalbase for this channel if possible | |
549 | signalbase.reset(); | |
550 | for (const shared_ptr<data::SignalBase> b : signalbases_) | |
551 | if (b->channel() == channel) | |
552 | signalbase = b; | |
553 | ||
554 | switch(channel->type()->id()) { | |
555 | case SR_CHANNEL_LOGIC: | |
556 | if (!signalbase) { | |
557 | signalbase = shared_ptr<data::SignalBase>( | |
558 | new data::SignalBase(channel)); | |
559 | signalbases_.insert(signalbase); | |
560 | ||
561 | all_signal_data_.insert(logic_data_); | |
562 | signalbase->set_data(logic_data_); | |
563 | } | |
564 | ||
565 | signal = shared_ptr<view::Signal>( | |
566 | new view::LogicSignal(*this, | |
567 | device_, signalbase)); | |
568 | view->add_signal(signal); | |
569 | break; | |
570 | ||
571 | case SR_CHANNEL_ANALOG: | |
572 | { | |
573 | if (!signalbase) { | |
574 | signalbase = shared_ptr<data::SignalBase>( | |
575 | new data::SignalBase(channel)); | |
576 | signalbases_.insert(signalbase); | |
577 | ||
578 | shared_ptr<data::Analog> data(new data::Analog()); | |
579 | all_signal_data_.insert(data); | |
580 | signalbase->set_data(data); | |
581 | } | |
582 | ||
583 | signal = shared_ptr<view::Signal>( | |
584 | new view::AnalogSignal( | |
585 | *this, signalbase)); | |
586 | view->add_signal(signal); | |
587 | break; | |
588 | } | |
589 | ||
590 | default: | |
591 | assert(0); | |
592 | break; | |
593 | } | |
594 | } | |
595 | } | |
596 | } | |
597 | ||
598 | signals_changed(); | |
599 | } | |
600 | ||
601 | shared_ptr<data::SignalBase> Session::signalbase_from_channel( | |
602 | shared_ptr<sigrok::Channel> channel) const | |
603 | { | |
604 | for (shared_ptr<data::SignalBase> sig : signalbases_) { | |
605 | assert(sig); | |
606 | if (sig->channel() == channel) | |
607 | return sig; | |
608 | } | |
609 | return shared_ptr<data::SignalBase>(); | |
610 | } | |
611 | ||
612 | void Session::sample_thread_proc(function<void (const QString)> error_handler) | |
613 | { | |
614 | assert(error_handler); | |
615 | ||
616 | if (!device_) | |
617 | return; | |
618 | ||
619 | cur_samplerate_ = device_->read_config<uint64_t>(ConfigKey::SAMPLERATE); | |
620 | ||
621 | out_of_memory_ = false; | |
622 | ||
623 | try { | |
624 | device_->start(); | |
625 | } catch (Error e) { | |
626 | error_handler(e.what()); | |
627 | return; | |
628 | } | |
629 | ||
630 | set_capture_state(device_->session()->trigger() ? | |
631 | AwaitingTrigger : Running); | |
632 | ||
633 | device_->run(); | |
634 | set_capture_state(Stopped); | |
635 | ||
636 | // Confirm that SR_DF_END was received | |
637 | if (cur_logic_segment_) { | |
638 | qDebug("SR_DF_END was not received."); | |
639 | assert(0); | |
640 | } | |
641 | ||
642 | if (out_of_memory_) | |
643 | error_handler(tr("Out of memory, acquisition stopped.")); | |
644 | } | |
645 | ||
646 | void Session::feed_in_header() | |
647 | { | |
648 | cur_samplerate_ = device_->read_config<uint64_t>(ConfigKey::SAMPLERATE); | |
649 | } | |
650 | ||
651 | void Session::feed_in_meta(shared_ptr<Meta> meta) | |
652 | { | |
653 | for (auto entry : meta->config()) { | |
654 | switch (entry.first->id()) { | |
655 | case SR_CONF_SAMPLERATE: | |
656 | // We can't rely on the header to always contain the sample rate, | |
657 | // so in case it's supplied via a meta packet, we use it. | |
658 | if (!cur_samplerate_) | |
659 | cur_samplerate_ = g_variant_get_uint64(entry.second.gobj()); | |
660 | ||
661 | /// @todo handle samplerate changes | |
662 | break; | |
663 | default: | |
664 | // Unknown metadata is not an error. | |
665 | break; | |
666 | } | |
667 | } | |
668 | ||
669 | signals_changed(); | |
670 | } | |
671 | ||
672 | void Session::feed_in_trigger() | |
673 | { | |
674 | // The channel containing most samples should be most accurate | |
675 | uint64_t sample_count = 0; | |
676 | ||
677 | { | |
678 | for (const shared_ptr<pv::data::SignalData> d : all_signal_data_) { | |
679 | assert(d); | |
680 | uint64_t temp_count = 0; | |
681 | ||
682 | const vector< shared_ptr<pv::data::Segment> > segments = | |
683 | d->segments(); | |
684 | for (const shared_ptr<pv::data::Segment> &s : segments) | |
685 | temp_count += s->get_sample_count(); | |
686 | ||
687 | if (temp_count > sample_count) | |
688 | sample_count = temp_count; | |
689 | } | |
690 | } | |
691 | ||
692 | trigger_event(sample_count / get_samplerate()); | |
693 | } | |
694 | ||
695 | void Session::feed_in_frame_begin() | |
696 | { | |
697 | if (cur_logic_segment_ || !cur_analog_segments_.empty()) | |
698 | frame_began(); | |
699 | } | |
700 | ||
701 | void Session::feed_in_logic(shared_ptr<Logic> logic) | |
702 | { | |
703 | lock_guard<recursive_mutex> lock(data_mutex_); | |
704 | ||
705 | const size_t sample_count = logic->data_length() / logic->unit_size(); | |
706 | ||
707 | if (!logic_data_) { | |
708 | // The only reason logic_data_ would not have been created is | |
709 | // if it was not possible to determine the signals when the | |
710 | // device was created. | |
711 | update_signals(); | |
712 | } | |
713 | ||
714 | if (!cur_logic_segment_) { | |
715 | // This could be the first packet after a trigger | |
716 | set_capture_state(Running); | |
717 | ||
718 | // Create a new data segment | |
719 | cur_logic_segment_ = shared_ptr<data::LogicSegment>( | |
720 | new data::LogicSegment( | |
721 | logic, cur_samplerate_, sample_count)); | |
722 | logic_data_->push_segment(cur_logic_segment_); | |
723 | ||
724 | // @todo Putting this here means that only listeners querying | |
725 | // for logic will be notified. Currently the only user of | |
726 | // frame_began is DecoderStack, but in future we need to signal | |
727 | // this after both analog and logic sweeps have begun. | |
728 | frame_began(); | |
729 | } else { | |
730 | // Append to the existing data segment | |
731 | cur_logic_segment_->append_payload(logic); | |
732 | } | |
733 | ||
734 | data_received(); | |
735 | } | |
736 | ||
737 | void Session::feed_in_analog(shared_ptr<Analog> analog) | |
738 | { | |
739 | lock_guard<recursive_mutex> lock(data_mutex_); | |
740 | ||
741 | const vector<shared_ptr<Channel>> channels = analog->channels(); | |
742 | const unsigned int channel_count = channels.size(); | |
743 | const size_t sample_count = analog->num_samples() / channel_count; | |
744 | const float *data = static_cast<const float *>(analog->data_pointer()); | |
745 | bool sweep_beginning = false; | |
746 | ||
747 | if (signalbases_.empty()) | |
748 | update_signals(); | |
749 | ||
750 | for (auto channel : channels) { | |
751 | shared_ptr<data::AnalogSegment> segment; | |
752 | ||
753 | // Try to get the segment of the channel | |
754 | const map< shared_ptr<Channel>, shared_ptr<data::AnalogSegment> >:: | |
755 | iterator iter = cur_analog_segments_.find(channel); | |
756 | if (iter != cur_analog_segments_.end()) | |
757 | segment = (*iter).second; | |
758 | else { | |
759 | // If no segment was found, this means we haven't | |
760 | // created one yet. i.e. this is the first packet | |
761 | // in the sweep containing this segment. | |
762 | sweep_beginning = true; | |
763 | ||
764 | // Create a segment, keep it in the maps of channels | |
765 | segment = shared_ptr<data::AnalogSegment>( | |
766 | new data::AnalogSegment( | |
767 | cur_samplerate_, sample_count)); | |
768 | cur_analog_segments_[channel] = segment; | |
769 | ||
770 | // Find the analog data associated with the channel | |
771 | shared_ptr<data::SignalBase> base = signalbase_from_channel(channel); | |
772 | assert(base); | |
773 | ||
774 | shared_ptr<data::Analog> data(base->analog_data()); | |
775 | assert(data); | |
776 | ||
777 | // Push the segment into the analog data. | |
778 | data->push_segment(segment); | |
779 | } | |
780 | ||
781 | assert(segment); | |
782 | ||
783 | // Append the samples in the segment | |
784 | segment->append_interleaved_samples(data++, sample_count, | |
785 | channel_count); | |
786 | } | |
787 | ||
788 | if (sweep_beginning) { | |
789 | // This could be the first packet after a trigger | |
790 | set_capture_state(Running); | |
791 | } | |
792 | ||
793 | data_received(); | |
794 | } | |
795 | ||
796 | void Session::data_feed_in(shared_ptr<sigrok::Device> device, | |
797 | shared_ptr<Packet> packet) | |
798 | { | |
799 | (void)device; | |
800 | ||
801 | assert(device); | |
802 | assert(device == device_->device()); | |
803 | assert(packet); | |
804 | ||
805 | switch (packet->type()->id()) { | |
806 | case SR_DF_HEADER: | |
807 | feed_in_header(); | |
808 | break; | |
809 | ||
810 | case SR_DF_META: | |
811 | feed_in_meta(dynamic_pointer_cast<Meta>(packet->payload())); | |
812 | break; | |
813 | ||
814 | case SR_DF_TRIGGER: | |
815 | feed_in_trigger(); | |
816 | break; | |
817 | ||
818 | case SR_DF_FRAME_BEGIN: | |
819 | feed_in_frame_begin(); | |
820 | break; | |
821 | ||
822 | case SR_DF_LOGIC: | |
823 | try { | |
824 | feed_in_logic(dynamic_pointer_cast<Logic>(packet->payload())); | |
825 | } catch (std::bad_alloc) { | |
826 | out_of_memory_ = true; | |
827 | device_->stop(); | |
828 | } | |
829 | break; | |
830 | ||
831 | case SR_DF_ANALOG: | |
832 | try { | |
833 | feed_in_analog(dynamic_pointer_cast<Analog>(packet->payload())); | |
834 | } catch (std::bad_alloc) { | |
835 | out_of_memory_ = true; | |
836 | device_->stop(); | |
837 | } | |
838 | break; | |
839 | ||
840 | case SR_DF_END: | |
841 | { | |
842 | { | |
843 | lock_guard<recursive_mutex> lock(data_mutex_); | |
844 | cur_logic_segment_.reset(); | |
845 | cur_analog_segments_.clear(); | |
846 | } | |
847 | frame_ended(); | |
848 | break; | |
849 | } | |
850 | default: | |
851 | break; | |
852 | } | |
853 | } | |
854 | ||
855 | } // namespace pv |