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