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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 | #include <cassert> | |
30 | #include <mutex> | |
31 | #include <stdexcept> | |
32 | ||
33 | #include <sys/stat.h> | |
34 | ||
35 | #include "session.hpp" | |
36 | #include "devicemanager.hpp" | |
37 | ||
38 | #include "data/analog.hpp" | |
39 | #include "data/analogsegment.hpp" | |
40 | #include "data/decoderstack.hpp" | |
41 | #include "data/logic.hpp" | |
42 | #include "data/logicsegment.hpp" | |
43 | #include "data/signalbase.hpp" | |
44 | #include "data/decode/decoder.hpp" | |
45 | ||
46 | #include "devices/hardwaredevice.hpp" | |
47 | #include "devices/sessionfile.hpp" | |
48 | ||
49 | #include "toolbars/mainbar.hpp" | |
50 | ||
51 | #include "view/analogsignal.hpp" | |
52 | #include "view/decodetrace.hpp" | |
53 | #include "view/logicsignal.hpp" | |
54 | #include "view/signal.hpp" | |
55 | #include "view/view.hpp" | |
56 | ||
57 | #include <libsigrokcxx/libsigrokcxx.hpp> | |
58 | ||
59 | #ifdef ENABLE_DECODE | |
60 | #include <libsigrokdecode/libsigrokdecode.h> | |
61 | #endif | |
62 | ||
63 | using boost::shared_lock; | |
64 | using boost::shared_mutex; | |
65 | using boost::unique_lock; | |
66 | ||
67 | using std::dynamic_pointer_cast; | |
68 | using std::function; | |
69 | using std::lock_guard; | |
70 | using std::list; | |
71 | using std::map; | |
72 | using std::mutex; | |
73 | using std::recursive_mutex; | |
74 | using std::set; | |
75 | using std::shared_ptr; | |
76 | using std::string; | |
77 | using std::unordered_set; | |
78 | using std::vector; | |
79 | ||
80 | using sigrok::Analog; | |
81 | using sigrok::Channel; | |
82 | using sigrok::ChannelType; | |
83 | using sigrok::ConfigKey; | |
84 | using sigrok::DatafeedCallbackFunction; | |
85 | using sigrok::Error; | |
86 | using sigrok::Header; | |
87 | using sigrok::Logic; | |
88 | using sigrok::Meta; | |
89 | using sigrok::Packet; | |
90 | using sigrok::PacketPayload; | |
91 | using sigrok::Session; | |
92 | using sigrok::SessionDevice; | |
93 | ||
94 | using Glib::VariantBase; | |
95 | using Glib::Variant; | |
96 | ||
97 | namespace pv { | |
98 | Session::Session(DeviceManager &device_manager, QString name) : | |
99 | device_manager_(device_manager), | |
100 | name_(name), | |
101 | capture_state_(Stopped), | |
102 | cur_samplerate_(0) | |
103 | { | |
104 | } | |
105 | ||
106 | Session::~Session() | |
107 | { | |
108 | // Stop and join to the thread | |
109 | stop_capture(); | |
110 | } | |
111 | ||
112 | DeviceManager& Session::device_manager() | |
113 | { | |
114 | return device_manager_; | |
115 | } | |
116 | ||
117 | const DeviceManager& Session::device_manager() const | |
118 | { | |
119 | return device_manager_; | |
120 | } | |
121 | ||
122 | shared_ptr<sigrok::Session> Session::session() const | |
123 | { | |
124 | if (!device_) | |
125 | return shared_ptr<sigrok::Session>(); | |
126 | return device_->session(); | |
127 | } | |
128 | ||
129 | shared_ptr<devices::Device> Session::device() const | |
130 | { | |
131 | return device_; | |
132 | } | |
133 | ||
134 | QString Session::name() const | |
135 | { | |
136 | return name_; | |
137 | } | |
138 | ||
139 | void Session::set_name(QString name) | |
140 | { | |
141 | if (default_name_.isEmpty()) | |
142 | default_name_ = name; | |
143 | ||
144 | name_ = name; | |
145 | ||
146 | name_changed(); | |
147 | } | |
148 | ||
149 | std::shared_ptr<pv::view::View> Session::main_view() const | |
150 | { | |
151 | return main_view_; | |
152 | } | |
153 | ||
154 | void Session::set_main_bar(std::shared_ptr<pv::toolbars::MainBar> main_bar) | |
155 | { | |
156 | main_bar_ = main_bar; | |
157 | } | |
158 | ||
159 | shared_ptr<pv::toolbars::MainBar> Session::main_bar() const | |
160 | { | |
161 | return main_bar_; | |
162 | } | |
163 | ||
164 | void Session::save_settings(QSettings &settings) const | |
165 | { | |
166 | map<string, string> dev_info; | |
167 | list<string> key_list; | |
168 | ||
169 | if (device_) { | |
170 | settings.beginGroup("Device"); | |
171 | key_list.push_back("vendor"); | |
172 | key_list.push_back("model"); | |
173 | key_list.push_back("version"); | |
174 | key_list.push_back("serial_num"); | |
175 | key_list.push_back("connection_id"); | |
176 | ||
177 | dev_info = device_manager_.get_device_info(device_); | |
178 | ||
179 | for (string key : key_list) { | |
180 | if (dev_info.count(key)) | |
181 | settings.setValue(QString::fromUtf8(key.c_str()), | |
182 | QString::fromUtf8(dev_info.at(key).c_str())); | |
183 | else | |
184 | settings.remove(QString::fromUtf8(key.c_str())); | |
185 | } | |
186 | ||
187 | // TODO Save channel settings and decoders | |
188 | ||
189 | settings.endGroup(); | |
190 | } | |
191 | } | |
192 | ||
193 | void Session::restore_settings(QSettings &settings) | |
194 | { | |
195 | map<string, string> dev_info; | |
196 | list<string> key_list; | |
197 | shared_ptr<devices::HardwareDevice> device; | |
198 | ||
199 | // Re-select last used device if possible but only if it's not demo | |
200 | settings.beginGroup("Device"); | |
201 | key_list.push_back("vendor"); | |
202 | key_list.push_back("model"); | |
203 | key_list.push_back("version"); | |
204 | key_list.push_back("serial_num"); | |
205 | key_list.push_back("connection_id"); | |
206 | ||
207 | for (string key : key_list) { | |
208 | const QString k = QString::fromStdString(key); | |
209 | if (!settings.contains(k)) | |
210 | continue; | |
211 | ||
212 | const string value = settings.value(k).toString().toStdString(); | |
213 | if (!value.empty()) | |
214 | dev_info.insert(std::make_pair(key, value)); | |
215 | } | |
216 | ||
217 | if (dev_info.count("model") > 0) | |
218 | device = device_manager_.find_device_from_info(dev_info); | |
219 | ||
220 | if (device) { | |
221 | set_device(device); | |
222 | ||
223 | // TODO Restore channel settings and decoders | |
224 | } | |
225 | ||
226 | settings.endGroup(); | |
227 | } | |
228 | ||
229 | void Session::set_device(shared_ptr<devices::Device> device) | |
230 | { | |
231 | assert(device); | |
232 | ||
233 | // Ensure we are not capturing before setting the device | |
234 | stop_capture(); | |
235 | ||
236 | if (device_) | |
237 | device_->close(); | |
238 | ||
239 | device_.reset(); | |
240 | ||
241 | // Revert name back to default name (e.g. "Untitled-1") as the data is gone | |
242 | name_ = default_name_; | |
243 | name_changed(); | |
244 | ||
245 | // Remove all stored data | |
246 | for (std::shared_ptr<pv::view::View> view : views_) { | |
247 | view->clear_signals(); | |
248 | #ifdef ENABLE_DECODE | |
249 | view->clear_decode_traces(); | |
250 | #endif | |
251 | } | |
252 | for (const shared_ptr<data::SignalData> d : all_signal_data_) | |
253 | d->clear(); | |
254 | all_signal_data_.clear(); | |
255 | signalbases_.clear(); | |
256 | cur_logic_segment_.reset(); | |
257 | ||
258 | for (auto entry : cur_analog_segments_) { | |
259 | shared_ptr<sigrok::Channel>(entry.first).reset(); | |
260 | shared_ptr<data::AnalogSegment>(entry.second).reset(); | |
261 | } | |
262 | ||
263 | logic_data_.reset(); | |
264 | ||
265 | signals_changed(); | |
266 | ||
267 | device_ = std::move(device); | |
268 | ||
269 | try { | |
270 | device_->open(); | |
271 | } catch (const QString &e) { | |
272 | device_.reset(); | |
273 | device_changed(); | |
274 | throw; | |
275 | } | |
276 | ||
277 | device_->session()->add_datafeed_callback([=] | |
278 | (shared_ptr<sigrok::Device> device, shared_ptr<Packet> packet) { | |
279 | data_feed_in(device, packet); | |
280 | }); | |
281 | ||
282 | update_signals(); | |
283 | device_changed(); | |
284 | } | |
285 | ||
286 | void Session::set_default_device() | |
287 | { | |
288 | const list< shared_ptr<devices::HardwareDevice> > &devices = | |
289 | device_manager_.devices(); | |
290 | ||
291 | if (devices.empty()) | |
292 | return; | |
293 | ||
294 | // Try and find the demo device and select that by default | |
295 | const auto iter = std::find_if(devices.begin(), devices.end(), | |
296 | [] (const shared_ptr<devices::HardwareDevice> &d) { | |
297 | return d->hardware_device()->driver()->name() == | |
298 | "demo"; }); | |
299 | set_device((iter == devices.end()) ? devices.front() : *iter); | |
300 | } | |
301 | ||
302 | Session::capture_state Session::get_capture_state() const | |
303 | { | |
304 | lock_guard<mutex> lock(sampling_mutex_); | |
305 | return capture_state_; | |
306 | } | |
307 | ||
308 | void Session::start_capture(function<void (const QString)> error_handler) | |
309 | { | |
310 | if (!device_) { | |
311 | error_handler(tr("No active device set, can't start acquisition.")); | |
312 | return; | |
313 | } | |
314 | ||
315 | stop_capture(); | |
316 | ||
317 | // Check that at least one channel is enabled | |
318 | const shared_ptr<sigrok::Device> sr_dev = device_->device(); | |
319 | if (sr_dev) { | |
320 | const auto channels = sr_dev->channels(); | |
321 | if (!std::any_of(channels.begin(), channels.end(), | |
322 | [](shared_ptr<Channel> channel) { | |
323 | return channel->enabled(); })) { | |
324 | error_handler(tr("No channels enabled.")); | |
325 | return; | |
326 | } | |
327 | } | |
328 | ||
329 | // Clear signal data | |
330 | for (const shared_ptr<data::SignalData> d : all_signal_data_) | |
331 | d->clear(); | |
332 | ||
333 | // Revert name back to default name (e.g. "Untitled-1") as the data is gone | |
334 | name_ = default_name_; | |
335 | name_changed(); | |
336 | ||
337 | // Begin the session | |
338 | sampling_thread_ = std::thread( | |
339 | &Session::sample_thread_proc, this, error_handler); | |
340 | } | |
341 | ||
342 | void Session::stop_capture() | |
343 | { | |
344 | if (get_capture_state() != Stopped) | |
345 | device_->stop(); | |
346 | ||
347 | // Check that sampling stopped | |
348 | if (sampling_thread_.joinable()) | |
349 | sampling_thread_.join(); | |
350 | } | |
351 | ||
352 | void Session::register_view(std::shared_ptr<pv::view::View> view) | |
353 | { | |
354 | if (views_.empty()) { | |
355 | main_view_ = view; | |
356 | } | |
357 | ||
358 | views_.insert(view); | |
359 | } | |
360 | ||
361 | void Session::deregister_view(std::shared_ptr<pv::view::View> view) | |
362 | { | |
363 | views_.erase(view); | |
364 | ||
365 | if (views_.empty()) { | |
366 | main_view_.reset(); | |
367 | ||
368 | // Without a view there can be no main bar | |
369 | main_bar_.reset(); | |
370 | } | |
371 | } | |
372 | ||
373 | bool Session::has_view(std::shared_ptr<pv::view::View> view) | |
374 | { | |
375 | return views_.find(view) != views_.end(); | |
376 | } | |
377 | ||
378 | double Session::get_samplerate() const | |
379 | { | |
380 | double samplerate = 0.0; | |
381 | ||
382 | for (const shared_ptr<pv::data::SignalData> d : all_signal_data_) { | |
383 | assert(d); | |
384 | const vector< shared_ptr<pv::data::Segment> > segments = | |
385 | d->segments(); | |
386 | for (const shared_ptr<pv::data::Segment> &s : segments) | |
387 | samplerate = std::max(samplerate, s->samplerate()); | |
388 | } | |
389 | // If there is no sample rate given we use samples as unit | |
390 | if (samplerate == 0.0) | |
391 | samplerate = 1.0; | |
392 | ||
393 | return samplerate; | |
394 | } | |
395 | ||
396 | const std::unordered_set< std::shared_ptr<data::SignalBase> > | |
397 | Session::signalbases() const | |
398 | { | |
399 | return signalbases_; | |
400 | } | |
401 | ||
402 | #ifdef ENABLE_DECODE | |
403 | bool Session::add_decoder(srd_decoder *const dec) | |
404 | { | |
405 | map<const srd_channel*, shared_ptr<data::SignalBase> > channels; | |
406 | shared_ptr<data::DecoderStack> decoder_stack; | |
407 | ||
408 | try { | |
409 | // Create the decoder | |
410 | decoder_stack = shared_ptr<data::DecoderStack>( | |
411 | new data::DecoderStack(*this, dec)); | |
412 | ||
413 | // Make a list of all the channels | |
414 | std::vector<const srd_channel*> all_channels; | |
415 | for (const GSList *i = dec->channels; i; i = i->next) | |
416 | all_channels.push_back((const srd_channel*)i->data); | |
417 | for (const GSList *i = dec->opt_channels; i; i = i->next) | |
418 | all_channels.push_back((const srd_channel*)i->data); | |
419 | ||
420 | // Auto select the initial channels | |
421 | for (const srd_channel *pdch : all_channels) | |
422 | for (shared_ptr<data::SignalBase> b : signalbases_) { | |
423 | if (b->type() == ChannelType::LOGIC) { | |
424 | if (QString::fromUtf8(pdch->name).toLower(). | |
425 | contains(b->name().toLower())) | |
426 | channels[pdch] = b; | |
427 | } | |
428 | } | |
429 | ||
430 | assert(decoder_stack); | |
431 | assert(!decoder_stack->stack().empty()); | |
432 | assert(decoder_stack->stack().front()); | |
433 | decoder_stack->stack().front()->set_channels(channels); | |
434 | ||
435 | // Create the decode signal | |
436 | shared_ptr<data::SignalBase> signalbase = | |
437 | shared_ptr<data::SignalBase>(new data::SignalBase(nullptr)); | |
438 | ||
439 | signalbase->set_decoder_stack(decoder_stack); | |
440 | ||
441 | for (std::shared_ptr<pv::view::View> view : views_) | |
442 | view->add_decode_trace(signalbase); | |
443 | } catch (std::runtime_error e) { | |
444 | return false; | |
445 | } | |
446 | ||
447 | signals_changed(); | |
448 | ||
449 | // Do an initial decode | |
450 | decoder_stack->begin_decode(); | |
451 | ||
452 | return true; | |
453 | } | |
454 | ||
455 | void Session::remove_decode_signal(shared_ptr<data::SignalBase> signalbase) | |
456 | { | |
457 | for (std::shared_ptr<pv::view::View> view : views_) | |
458 | view->remove_decode_trace(signalbase); | |
459 | } | |
460 | #endif | |
461 | ||
462 | void Session::set_capture_state(capture_state state) | |
463 | { | |
464 | bool changed; | |
465 | ||
466 | { | |
467 | lock_guard<mutex> lock(sampling_mutex_); | |
468 | changed = capture_state_ != state; | |
469 | capture_state_ = state; | |
470 | } | |
471 | ||
472 | if (changed) | |
473 | capture_state_changed(state); | |
474 | } | |
475 | ||
476 | void Session::update_signals() | |
477 | { | |
478 | if (!device_) { | |
479 | signalbases_.clear(); | |
480 | logic_data_.reset(); | |
481 | for (std::shared_ptr<pv::view::View> view : views_) { | |
482 | view->clear_signals(); | |
483 | #ifdef ENABLE_DECODE | |
484 | view->clear_decode_traces(); | |
485 | #endif | |
486 | } | |
487 | return; | |
488 | } | |
489 | ||
490 | lock_guard<recursive_mutex> lock(data_mutex_); | |
491 | ||
492 | const shared_ptr<sigrok::Device> sr_dev = device_->device(); | |
493 | if (!sr_dev) { | |
494 | signalbases_.clear(); | |
495 | logic_data_.reset(); | |
496 | for (std::shared_ptr<pv::view::View> view : views_) { | |
497 | view->clear_signals(); | |
498 | #ifdef ENABLE_DECODE | |
499 | view->clear_decode_traces(); | |
500 | #endif | |
501 | } | |
502 | return; | |
503 | } | |
504 | ||
505 | // Detect what data types we will receive | |
506 | auto channels = sr_dev->channels(); | |
507 | unsigned int logic_channel_count = std::count_if( | |
508 | channels.begin(), channels.end(), | |
509 | [] (shared_ptr<Channel> channel) { | |
510 | return channel->type() == ChannelType::LOGIC; }); | |
511 | ||
512 | // Create data containers for the logic data segments | |
513 | { | |
514 | lock_guard<recursive_mutex> data_lock(data_mutex_); | |
515 | ||
516 | if (logic_channel_count == 0) { | |
517 | logic_data_.reset(); | |
518 | } else if (!logic_data_ || | |
519 | logic_data_->num_channels() != logic_channel_count) { | |
520 | logic_data_.reset(new data::Logic( | |
521 | logic_channel_count)); | |
522 | assert(logic_data_); | |
523 | } | |
524 | } | |
525 | ||
526 | // Make the signals list | |
527 | for (std::shared_ptr<pv::view::View> view : views_) { | |
528 | unordered_set< shared_ptr<view::Signal> > prev_sigs(view->signals()); | |
529 | view->clear_signals(); | |
530 | ||
531 | for (auto channel : sr_dev->channels()) { | |
532 | shared_ptr<data::SignalBase> signalbase; | |
533 | shared_ptr<view::Signal> signal; | |
534 | ||
535 | // Find the channel in the old signals | |
536 | const auto iter = std::find_if( | |
537 | prev_sigs.cbegin(), prev_sigs.cend(), | |
538 | [&](const shared_ptr<view::Signal> &s) { | |
539 | return s->base()->channel() == channel; | |
540 | }); | |
541 | if (iter != prev_sigs.end()) { | |
542 | // Copy the signal from the old set to the new | |
543 | signal = *iter; | |
544 | } else { | |
545 | // Find the signalbase for this channel if possible | |
546 | signalbase.reset(); | |
547 | for (const shared_ptr<data::SignalBase> b : signalbases_) | |
548 | if (b->channel() == channel) | |
549 | signalbase = b; | |
550 | ||
551 | switch(channel->type()->id()) { | |
552 | case SR_CHANNEL_LOGIC: | |
553 | if (!signalbase) { | |
554 | signalbase = shared_ptr<data::SignalBase>( | |
555 | new data::SignalBase(channel)); | |
556 | signalbases_.insert(signalbase); | |
557 | ||
558 | all_signal_data_.insert(logic_data_); | |
559 | signalbase->set_data(logic_data_); | |
560 | } | |
561 | ||
562 | signal = shared_ptr<view::Signal>( | |
563 | new view::LogicSignal(*this, | |
564 | device_, signalbase)); | |
565 | view->add_signal(signal); | |
566 | break; | |
567 | ||
568 | case SR_CHANNEL_ANALOG: | |
569 | { | |
570 | if (!signalbase) { | |
571 | signalbase = shared_ptr<data::SignalBase>( | |
572 | new data::SignalBase(channel)); | |
573 | signalbases_.insert(signalbase); | |
574 | ||
575 | shared_ptr<data::Analog> data(new data::Analog()); | |
576 | all_signal_data_.insert(data); | |
577 | signalbase->set_data(data); | |
578 | } | |
579 | ||
580 | signal = shared_ptr<view::Signal>( | |
581 | new view::AnalogSignal( | |
582 | *this, signalbase)); | |
583 | view->add_signal(signal); | |
584 | break; | |
585 | } | |
586 | ||
587 | default: | |
588 | assert(0); | |
589 | break; | |
590 | } | |
591 | } | |
592 | } | |
593 | } | |
594 | ||
595 | signals_changed(); | |
596 | } | |
597 | ||
598 | shared_ptr<data::SignalBase> Session::signalbase_from_channel( | |
599 | shared_ptr<sigrok::Channel> channel) const | |
600 | { | |
601 | for (shared_ptr<data::SignalBase> sig : signalbases_) { | |
602 | assert(sig); | |
603 | if (sig->channel() == channel) | |
604 | return sig; | |
605 | } | |
606 | return shared_ptr<data::SignalBase>(); | |
607 | } | |
608 | ||
609 | void Session::sample_thread_proc(function<void (const QString)> error_handler) | |
610 | { | |
611 | assert(error_handler); | |
612 | ||
613 | if (!device_) | |
614 | return; | |
615 | ||
616 | cur_samplerate_ = device_->read_config<uint64_t>(ConfigKey::SAMPLERATE); | |
617 | ||
618 | out_of_memory_ = false; | |
619 | ||
620 | try { | |
621 | device_->start(); | |
622 | } catch (Error e) { | |
623 | error_handler(e.what()); | |
624 | return; | |
625 | } | |
626 | ||
627 | set_capture_state(device_->session()->trigger() ? | |
628 | AwaitingTrigger : Running); | |
629 | ||
630 | device_->run(); | |
631 | set_capture_state(Stopped); | |
632 | ||
633 | // Confirm that SR_DF_END was received | |
634 | if (cur_logic_segment_) { | |
635 | qDebug("SR_DF_END was not received."); | |
636 | assert(0); | |
637 | } | |
638 | ||
639 | if (out_of_memory_) | |
640 | error_handler(tr("Out of memory, acquisition stopped.")); | |
641 | } | |
642 | ||
643 | void Session::feed_in_header() | |
644 | { | |
645 | cur_samplerate_ = device_->read_config<uint64_t>(ConfigKey::SAMPLERATE); | |
646 | } | |
647 | ||
648 | void Session::feed_in_meta(shared_ptr<Meta> meta) | |
649 | { | |
650 | for (auto entry : meta->config()) { | |
651 | switch (entry.first->id()) { | |
652 | case SR_CONF_SAMPLERATE: | |
653 | // We can't rely on the header to always contain the sample rate, | |
654 | // so in case it's supplied via a meta packet, we use it. | |
655 | if (!cur_samplerate_) | |
656 | cur_samplerate_ = g_variant_get_uint64(entry.second.gobj()); | |
657 | ||
658 | /// @todo handle samplerate changes | |
659 | break; | |
660 | default: | |
661 | // Unknown metadata is not an error. | |
662 | break; | |
663 | } | |
664 | } | |
665 | ||
666 | signals_changed(); | |
667 | } | |
668 | ||
669 | void Session::feed_in_trigger() | |
670 | { | |
671 | // The channel containing most samples should be most accurate | |
672 | uint64_t sample_count = 0; | |
673 | ||
674 | { | |
675 | for (const shared_ptr<pv::data::SignalData> d : all_signal_data_) { | |
676 | assert(d); | |
677 | uint64_t temp_count = 0; | |
678 | ||
679 | const vector< shared_ptr<pv::data::Segment> > segments = | |
680 | d->segments(); | |
681 | for (const shared_ptr<pv::data::Segment> &s : segments) | |
682 | temp_count += s->get_sample_count(); | |
683 | ||
684 | if (temp_count > sample_count) | |
685 | sample_count = temp_count; | |
686 | } | |
687 | } | |
688 | ||
689 | trigger_event(sample_count / get_samplerate()); | |
690 | } | |
691 | ||
692 | void Session::feed_in_frame_begin() | |
693 | { | |
694 | if (cur_logic_segment_ || !cur_analog_segments_.empty()) | |
695 | frame_began(); | |
696 | } | |
697 | ||
698 | void Session::feed_in_logic(shared_ptr<Logic> logic) | |
699 | { | |
700 | lock_guard<recursive_mutex> lock(data_mutex_); | |
701 | ||
702 | const size_t sample_count = logic->data_length() / logic->unit_size(); | |
703 | ||
704 | if (!logic_data_) { | |
705 | // The only reason logic_data_ would not have been created is | |
706 | // if it was not possible to determine the signals when the | |
707 | // device was created. | |
708 | update_signals(); | |
709 | } | |
710 | ||
711 | if (!cur_logic_segment_) { | |
712 | // This could be the first packet after a trigger | |
713 | set_capture_state(Running); | |
714 | ||
715 | // Create a new data segment | |
716 | cur_logic_segment_ = shared_ptr<data::LogicSegment>( | |
717 | new data::LogicSegment( | |
718 | logic, cur_samplerate_, sample_count)); | |
719 | logic_data_->push_segment(cur_logic_segment_); | |
720 | ||
721 | // @todo Putting this here means that only listeners querying | |
722 | // for logic will be notified. Currently the only user of | |
723 | // frame_began is DecoderStack, but in future we need to signal | |
724 | // this after both analog and logic sweeps have begun. | |
725 | frame_began(); | |
726 | } else { | |
727 | // Append to the existing data segment | |
728 | cur_logic_segment_->append_payload(logic); | |
729 | } | |
730 | ||
731 | data_received(); | |
732 | } | |
733 | ||
734 | void Session::feed_in_analog(shared_ptr<Analog> analog) | |
735 | { | |
736 | lock_guard<recursive_mutex> lock(data_mutex_); | |
737 | ||
738 | const vector<shared_ptr<Channel>> channels = analog->channels(); | |
739 | const unsigned int channel_count = channels.size(); | |
740 | const size_t sample_count = analog->num_samples() / channel_count; | |
741 | const float *data = static_cast<const float *>(analog->data_pointer()); | |
742 | bool sweep_beginning = false; | |
743 | ||
744 | if (signalbases_.empty()) | |
745 | update_signals(); | |
746 | ||
747 | for (auto channel : channels) { | |
748 | shared_ptr<data::AnalogSegment> segment; | |
749 | ||
750 | // Try to get the segment of the channel | |
751 | const map< shared_ptr<Channel>, shared_ptr<data::AnalogSegment> >:: | |
752 | iterator iter = cur_analog_segments_.find(channel); | |
753 | if (iter != cur_analog_segments_.end()) | |
754 | segment = (*iter).second; | |
755 | else { | |
756 | // If no segment was found, this means we haven't | |
757 | // created one yet. i.e. this is the first packet | |
758 | // in the sweep containing this segment. | |
759 | sweep_beginning = true; | |
760 | ||
761 | // Create a segment, keep it in the maps of channels | |
762 | segment = shared_ptr<data::AnalogSegment>( | |
763 | new data::AnalogSegment( | |
764 | cur_samplerate_, sample_count)); | |
765 | cur_analog_segments_[channel] = segment; | |
766 | ||
767 | // Find the analog data associated with the channel | |
768 | shared_ptr<data::SignalBase> base = signalbase_from_channel(channel); | |
769 | assert(base); | |
770 | ||
771 | shared_ptr<data::Analog> data(base->analog_data()); | |
772 | assert(data); | |
773 | ||
774 | // Push the segment into the analog data. | |
775 | data->push_segment(segment); | |
776 | } | |
777 | ||
778 | assert(segment); | |
779 | ||
780 | // Append the samples in the segment | |
781 | segment->append_interleaved_samples(data++, sample_count, | |
782 | channel_count); | |
783 | } | |
784 | ||
785 | if (sweep_beginning) { | |
786 | // This could be the first packet after a trigger | |
787 | set_capture_state(Running); | |
788 | } | |
789 | ||
790 | data_received(); | |
791 | } | |
792 | ||
793 | void Session::data_feed_in(shared_ptr<sigrok::Device> device, | |
794 | shared_ptr<Packet> packet) | |
795 | { | |
796 | (void)device; | |
797 | ||
798 | assert(device); | |
799 | assert(device == device_->device()); | |
800 | assert(packet); | |
801 | ||
802 | switch (packet->type()->id()) { | |
803 | case SR_DF_HEADER: | |
804 | feed_in_header(); | |
805 | break; | |
806 | ||
807 | case SR_DF_META: | |
808 | feed_in_meta(dynamic_pointer_cast<Meta>(packet->payload())); | |
809 | break; | |
810 | ||
811 | case SR_DF_TRIGGER: | |
812 | feed_in_trigger(); | |
813 | break; | |
814 | ||
815 | case SR_DF_FRAME_BEGIN: | |
816 | feed_in_frame_begin(); | |
817 | break; | |
818 | ||
819 | case SR_DF_LOGIC: | |
820 | try { | |
821 | feed_in_logic(dynamic_pointer_cast<Logic>(packet->payload())); | |
822 | } catch (std::bad_alloc) { | |
823 | out_of_memory_ = true; | |
824 | device_->stop(); | |
825 | } | |
826 | break; | |
827 | ||
828 | case SR_DF_ANALOG: | |
829 | try { | |
830 | feed_in_analog(dynamic_pointer_cast<Analog>(packet->payload())); | |
831 | } catch (std::bad_alloc) { | |
832 | out_of_memory_ = true; | |
833 | device_->stop(); | |
834 | } | |
835 | break; | |
836 | ||
837 | case SR_DF_END: | |
838 | { | |
839 | { | |
840 | lock_guard<recursive_mutex> lock(data_mutex_); | |
841 | cur_logic_segment_.reset(); | |
842 | cur_analog_segments_.clear(); | |
843 | } | |
844 | frame_ended(); | |
845 | break; | |
846 | } | |
847 | default: | |
848 | break; | |
849 | } | |
850 | } | |
851 | ||
852 | } // namespace pv |