2 * This file is part of the PulseView project.
4 * Copyright (C) 2012-14 Joel Holdsworth <joel@airwebreathe.org.uk>
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.
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.
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/>.
30 #include "devicemanager.hpp"
31 #include "session.hpp"
33 #include "data/analog.hpp"
34 #include "data/analogsegment.hpp"
35 #include "data/decode/decoder.hpp"
36 #include "data/logic.hpp"
37 #include "data/logicsegment.hpp"
38 #include "data/signalbase.hpp"
40 #include "devices/hardwaredevice.hpp"
41 #include "devices/inputfile.hpp"
42 #include "devices/sessionfile.hpp"
44 #include "toolbars/mainbar.hpp"
46 #include "views/trace/analogsignal.hpp"
47 #include "views/trace/decodetrace.hpp"
48 #include "views/trace/logicsignal.hpp"
49 #include "views/trace/signal.hpp"
50 #include "views/trace/view.hpp"
52 #include <libsigrokcxx/libsigrokcxx.hpp>
55 #include <libsigrokdecode/libsigrokdecode.h>
56 #include "data/decodesignal.hpp"
60 using std::dynamic_pointer_cast;
63 using std::lock_guard;
66 using std::make_shared;
72 using std::recursive_mutex;
73 using std::runtime_error;
74 using std::shared_ptr;
76 using std::unique_ptr;
77 using std::unordered_set;
81 using sigrok::Channel;
82 using sigrok::ConfigKey;
83 using sigrok::DatafeedCallbackFunction;
85 using sigrok::InputFormat;
89 using sigrok::Session;
91 using Glib::VariantBase;
95 shared_ptr<sigrok::Context> Session::sr_context;
97 Session::Session(DeviceManager &device_manager, QString name) :
98 device_manager_(device_manager),
101 capture_state_(Stopped),
109 // Stop and join to the thread
113 DeviceManager& Session::device_manager()
115 return device_manager_;
118 const DeviceManager& Session::device_manager() const
120 return device_manager_;
123 shared_ptr<sigrok::Session> Session::session() const
126 return shared_ptr<sigrok::Session>();
127 return device_->session();
130 shared_ptr<devices::Device> Session::device() const
135 QString Session::name() const
140 void Session::set_name(QString name)
142 if (default_name_.isEmpty())
143 default_name_ = name;
150 const list< shared_ptr<views::ViewBase> > Session::views() const
155 shared_ptr<views::ViewBase> Session::main_view() const
160 void Session::set_main_bar(shared_ptr<pv::toolbars::MainBar> main_bar)
162 main_bar_ = main_bar;
165 shared_ptr<pv::toolbars::MainBar> Session::main_bar() const
170 bool Session::data_saved() const
175 void Session::save_settings(QSettings &settings) const
177 map<string, string> dev_info;
178 list<string> key_list;
179 int decode_signals = 0, views = 0;
182 shared_ptr<devices::HardwareDevice> hw_device =
183 dynamic_pointer_cast< devices::HardwareDevice >(device_);
186 settings.setValue("device_type", "hardware");
187 settings.beginGroup("device");
189 key_list.emplace_back("vendor");
190 key_list.emplace_back("model");
191 key_list.emplace_back("version");
192 key_list.emplace_back("serial_num");
193 key_list.emplace_back("connection_id");
195 dev_info = device_manager_.get_device_info(device_);
197 for (string key : key_list) {
198 if (dev_info.count(key))
199 settings.setValue(QString::fromUtf8(key.c_str()),
200 QString::fromUtf8(dev_info.at(key).c_str()));
202 settings.remove(QString::fromUtf8(key.c_str()));
208 shared_ptr<devices::SessionFile> sessionfile_device =
209 dynamic_pointer_cast< devices::SessionFile >(device_);
211 if (sessionfile_device) {
212 settings.setValue("device_type", "sessionfile");
213 settings.beginGroup("device");
214 settings.setValue("filename", QString::fromStdString(
215 sessionfile_device->full_name()));
219 // Save channels and decoders
220 for (shared_ptr<data::SignalBase> base : signalbases_) {
222 if (base->is_decode_signal()) {
223 settings.beginGroup("decode_signal" + QString::number(decode_signals++));
224 base->save_settings(settings);
229 settings.beginGroup(base->internal_name());
230 base->save_settings(settings);
235 settings.setValue("decode_signals", decode_signals);
237 // Save view states and their signal settings
238 // Note: main_view must be saved as view0
239 settings.beginGroup("view" + QString::number(views++));
240 main_view_->save_settings(settings);
243 for (shared_ptr<views::ViewBase> view : views_) {
244 if (view != main_view_) {
245 settings.beginGroup("view" + QString::number(views++));
246 view->save_settings(settings);
251 settings.setValue("views", views);
255 void Session::restore_settings(QSettings &settings)
257 shared_ptr<devices::Device> device;
259 QString device_type = settings.value("device_type").toString();
261 if (device_type == "hardware") {
262 map<string, string> dev_info;
263 list<string> key_list;
265 // Re-select last used device if possible but only if it's not demo
266 settings.beginGroup("device");
267 key_list.emplace_back("vendor");
268 key_list.emplace_back("model");
269 key_list.emplace_back("version");
270 key_list.emplace_back("serial_num");
271 key_list.emplace_back("connection_id");
273 for (string key : key_list) {
274 const QString k = QString::fromStdString(key);
275 if (!settings.contains(k))
278 const string value = settings.value(k).toString().toStdString();
280 dev_info.insert(make_pair(key, value));
283 if (dev_info.count("model") > 0)
284 device = device_manager_.find_device_from_info(dev_info);
292 if (device_type == "sessionfile") {
293 settings.beginGroup("device");
294 QString filename = settings.value("filename").toString();
297 if (QFileInfo(filename).isReadable()) {
298 device = make_shared<devices::SessionFile>(device_manager_.context(),
299 filename.toStdString());
302 // TODO Perform error handling
303 start_capture([](QString infoMessage) { (void)infoMessage; });
305 set_name(QFileInfo(filename).fileName());
311 for (shared_ptr<data::SignalBase> base : signalbases_) {
312 settings.beginGroup(base->internal_name());
313 base->restore_settings(settings);
319 int decode_signals = settings.value("decode_signals").toInt();
321 for (int i = 0; i < decode_signals; i++) {
322 settings.beginGroup("decode_signal" + QString::number(i));
323 shared_ptr<data::DecodeSignal> signal = add_decode_signal();
324 signal->restore_settings(settings);
330 int views = settings.value("views").toInt();
332 for (int i = 0; i < views; i++) {
333 settings.beginGroup("view" + QString::number(i));
336 views::ViewType type = (views::ViewType)settings.value("type").toInt();
337 add_view(name_, type, this);
338 views_.back()->restore_settings(settings);
340 main_view_->restore_settings(settings);
347 void Session::select_device(shared_ptr<devices::Device> device)
353 set_default_device();
354 } catch (const QString &e) {
355 main_bar_->session_error(tr("Failed to Select Device"),
356 tr("Failed to Select Device"));
360 void Session::set_device(shared_ptr<devices::Device> device)
364 // Ensure we are not capturing before setting the device
372 // Revert name back to default name (e.g. "Session 1") as the data is gone
373 name_ = default_name_;
376 // Remove all stored data
377 for (shared_ptr<views::ViewBase> view : views_) {
378 view->clear_signals();
380 view->clear_decode_signals();
383 for (const shared_ptr<data::SignalData> d : all_signal_data_)
385 all_signal_data_.clear();
386 signalbases_.clear();
387 cur_logic_segment_.reset();
389 for (auto entry : cur_analog_segments_) {
390 shared_ptr<sigrok::Channel>(entry.first).reset();
391 shared_ptr<data::AnalogSegment>(entry.second).reset();
398 device_ = move(device);
402 } catch (const QString &e) {
407 device_->session()->add_datafeed_callback([=]
408 (shared_ptr<sigrok::Device> device, shared_ptr<Packet> packet) {
409 data_feed_in(device, packet);
418 void Session::set_default_device()
420 const list< shared_ptr<devices::HardwareDevice> > &devices =
421 device_manager_.devices();
426 // Try and find the demo device and select that by default
427 const auto iter = find_if(devices.begin(), devices.end(),
428 [] (const shared_ptr<devices::HardwareDevice> &d) {
429 return d->hardware_device()->driver()->name() == "demo"; });
430 set_device((iter == devices.end()) ? devices.front() : *iter);
434 * Convert generic options to data types that are specific to InputFormat.
436 * @param[in] user_spec Vector of tokenized words, string format.
437 * @param[in] fmt_opts Input format's options, result of InputFormat::options().
439 * @return Map of options suitable for InputFormat::create_input().
441 map<string, Glib::VariantBase>
442 Session::input_format_options(vector<string> user_spec,
443 map<string, shared_ptr<Option>> fmt_opts)
445 map<string, Glib::VariantBase> result;
447 for (auto entry : user_spec) {
449 * Split key=value specs. Accept entries without separator
450 * (for simplified boolean specifications).
453 size_t pos = entry.find("=");
454 if (pos == std::string::npos) {
458 key = entry.substr(0, pos);
459 val = entry.substr(pos + 1);
463 * Skip user specifications that are not a member of the
464 * format's set of supported options. Have the text input
465 * spec converted to the required input format specific
468 auto found = fmt_opts.find(key);
469 if (found == fmt_opts.end())
471 shared_ptr<Option> opt = found->second;
472 result[key] = opt->parse_string(val);
478 void Session::load_init_file(const string &file_name, const string &format)
480 shared_ptr<InputFormat> input_format;
481 map<string, Glib::VariantBase> input_opts;
483 if (!format.empty()) {
484 const map<string, shared_ptr<InputFormat> > formats =
485 device_manager_.context()->input_formats();
486 auto user_opts = pv::util::split_string(format, ":");
487 string user_name = user_opts.front();
488 user_opts.erase(user_opts.begin());
489 const auto iter = find_if(formats.begin(), formats.end(),
490 [&](const pair<string, shared_ptr<InputFormat> > f) {
491 return f.first == user_name; });
492 if (iter == formats.end()) {
493 main_bar_->session_error(tr("Error"),
494 tr("Unexpected input format: %s").arg(QString::fromStdString(format)));
497 input_format = (*iter).second;
498 input_opts = input_format_options(user_opts,
499 input_format->options());
502 load_file(QString::fromStdString(file_name), input_format, input_opts);
505 void Session::load_file(QString file_name,
506 shared_ptr<sigrok::InputFormat> format,
507 const map<string, Glib::VariantBase> &options)
509 const QString errorMessage(
510 QString("Failed to load file %1").arg(file_name));
514 set_device(shared_ptr<devices::Device>(
515 new devices::InputFile(
516 device_manager_.context(),
517 file_name.toStdString(),
520 set_device(shared_ptr<devices::Device>(
521 new devices::SessionFile(
522 device_manager_.context(),
523 file_name.toStdString())));
525 main_bar_->session_error(tr("Failed to load ") + file_name, e.what());
526 set_default_device();
527 main_bar_->update_device_list();
531 main_bar_->update_device_list();
533 start_capture([&, errorMessage](QString infoMessage) {
534 main_bar_->session_error(errorMessage, infoMessage); });
536 set_name(QFileInfo(file_name).fileName());
539 Session::capture_state Session::get_capture_state() const
541 lock_guard<mutex> lock(sampling_mutex_);
542 return capture_state_;
545 void Session::start_capture(function<void (const QString)> error_handler)
548 error_handler(tr("No active device set, can't start acquisition."));
554 // Check that at least one channel is enabled
555 const shared_ptr<sigrok::Device> sr_dev = device_->device();
557 const auto channels = sr_dev->channels();
558 if (!any_of(channels.begin(), channels.end(),
559 [](shared_ptr<Channel> channel) {
560 return channel->enabled(); })) {
561 error_handler(tr("No channels enabled."));
567 for (const shared_ptr<data::SignalData> d : all_signal_data_)
570 // Revert name back to default name (e.g. "Session 1") for real devices
571 // as the (possibly saved) data is gone. File devices keep their name.
572 shared_ptr<devices::HardwareDevice> hw_device =
573 dynamic_pointer_cast< devices::HardwareDevice >(device_);
576 name_ = default_name_;
581 sampling_thread_ = std::thread(
582 &Session::sample_thread_proc, this, error_handler);
585 void Session::stop_capture()
587 if (get_capture_state() != Stopped)
590 // Check that sampling stopped
591 if (sampling_thread_.joinable())
592 sampling_thread_.join();
595 void Session::register_view(shared_ptr<views::ViewBase> view)
597 if (views_.empty()) {
601 views_.push_back(view);
603 // Add all device signals
606 // Add all other signals
607 unordered_set< shared_ptr<data::SignalBase> > view_signalbases =
610 views::trace::View *trace_view =
611 qobject_cast<views::trace::View*>(view.get());
614 for (shared_ptr<data::SignalBase> signalbase : signalbases_) {
615 const int sb_exists = count_if(
616 view_signalbases.cbegin(), view_signalbases.cend(),
617 [&](const shared_ptr<data::SignalBase> &sb) {
618 return sb == signalbase;
620 // Add the signal to the view as it doesn't have it yet
622 switch (signalbase->type()) {
623 case data::SignalBase::AnalogChannel:
624 case data::SignalBase::LogicChannel:
625 case data::SignalBase::DecodeChannel:
627 trace_view->add_decode_signal(
628 dynamic_pointer_cast<data::DecodeSignal>(signalbase));
631 case data::SignalBase::MathChannel:
641 void Session::deregister_view(shared_ptr<views::ViewBase> view)
643 views_.remove_if([&](shared_ptr<views::ViewBase> v) { return v == view; });
645 if (views_.empty()) {
648 // Without a view there can be no main bar
653 bool Session::has_view(shared_ptr<views::ViewBase> view)
655 for (shared_ptr<views::ViewBase> v : views_)
662 double Session::get_samplerate() const
664 double samplerate = 0.0;
666 for (const shared_ptr<pv::data::SignalData> d : all_signal_data_) {
668 const vector< shared_ptr<pv::data::Segment> > segments =
670 for (const shared_ptr<pv::data::Segment> &s : segments)
671 samplerate = max(samplerate, s->samplerate());
673 // If there is no sample rate given we use samples as unit
674 if (samplerate == 0.0)
680 int Session::get_segment_count() const
682 int min_val = INT_MAX;
684 for (shared_ptr<data::SignalData> data : all_signal_data_)
685 if (data->get_segment_count() < min_val)
686 min_val = data->get_segment_count();
691 const unordered_set< shared_ptr<data::SignalBase> > Session::signalbases() const
697 shared_ptr<data::DecodeSignal> Session::add_decode_signal()
699 shared_ptr<data::DecodeSignal> signal;
702 // Create the decode signal
703 signal = make_shared<data::DecodeSignal>(*this);
705 signalbases_.insert(signal);
707 // Add the decode signal to all views
708 for (shared_ptr<views::ViewBase> view : views_)
709 view->add_decode_signal(signal);
710 } catch (runtime_error e) {
711 remove_decode_signal(signal);
720 void Session::remove_decode_signal(shared_ptr<data::DecodeSignal> signal)
722 signalbases_.erase(signal);
724 for (shared_ptr<views::ViewBase> view : views_)
725 view->remove_decode_signal(signal);
731 void Session::set_capture_state(capture_state state)
736 lock_guard<mutex> lock(sampling_mutex_);
737 changed = capture_state_ != state;
738 capture_state_ = state;
742 capture_state_changed(state);
745 void Session::update_signals()
748 signalbases_.clear();
750 for (shared_ptr<views::ViewBase> view : views_) {
751 view->clear_signals();
753 view->clear_decode_signals();
759 lock_guard<recursive_mutex> lock(data_mutex_);
761 const shared_ptr<sigrok::Device> sr_dev = device_->device();
763 signalbases_.clear();
765 for (shared_ptr<views::ViewBase> view : views_) {
766 view->clear_signals();
768 view->clear_decode_signals();
774 // Detect what data types we will receive
775 auto channels = sr_dev->channels();
776 unsigned int logic_channel_count = count_if(
777 channels.begin(), channels.end(),
778 [] (shared_ptr<Channel> channel) {
779 return channel->type() == sigrok::ChannelType::LOGIC; });
781 // Create data containers for the logic data segments
783 lock_guard<recursive_mutex> data_lock(data_mutex_);
785 if (logic_channel_count == 0) {
787 } else if (!logic_data_ ||
788 logic_data_->num_channels() != logic_channel_count) {
789 logic_data_.reset(new data::Logic(
790 logic_channel_count));
795 // Make the signals list
796 for (shared_ptr<views::ViewBase> viewbase : views_) {
797 views::trace::View *trace_view =
798 qobject_cast<views::trace::View*>(viewbase.get());
801 unordered_set< shared_ptr<views::trace::Signal> >
802 prev_sigs(trace_view->signals());
803 trace_view->clear_signals();
805 for (auto channel : sr_dev->channels()) {
806 shared_ptr<data::SignalBase> signalbase;
807 shared_ptr<views::trace::Signal> signal;
809 // Find the channel in the old signals
810 const auto iter = find_if(
811 prev_sigs.cbegin(), prev_sigs.cend(),
812 [&](const shared_ptr<views::trace::Signal> &s) {
813 return s->base()->channel() == channel;
815 if (iter != prev_sigs.end()) {
816 // Copy the signal from the old set to the new
818 trace_view->add_signal(signal);
820 // Find the signalbase for this channel if possible
822 for (const shared_ptr<data::SignalBase> b : signalbases_)
823 if (b->channel() == channel)
826 switch(channel->type()->id()) {
827 case SR_CHANNEL_LOGIC:
829 signalbase = make_shared<data::SignalBase>(channel,
830 data::SignalBase::LogicChannel);
831 signalbases_.insert(signalbase);
833 all_signal_data_.insert(logic_data_);
834 signalbase->set_data(logic_data_);
836 connect(this, SIGNAL(capture_state_changed(int)),
837 signalbase.get(), SLOT(on_capture_state_changed(int)));
840 signal = shared_ptr<views::trace::Signal>(
841 new views::trace::LogicSignal(*this,
842 device_, signalbase));
843 trace_view->add_signal(signal);
846 case SR_CHANNEL_ANALOG:
849 signalbase = make_shared<data::SignalBase>(channel,
850 data::SignalBase::AnalogChannel);
851 signalbases_.insert(signalbase);
853 shared_ptr<data::Analog> data(new data::Analog());
854 all_signal_data_.insert(data);
855 signalbase->set_data(data);
857 connect(this, SIGNAL(capture_state_changed(int)),
858 signalbase.get(), SLOT(on_capture_state_changed(int)));
861 signal = shared_ptr<views::trace::Signal>(
862 new views::trace::AnalogSignal(
864 trace_view->add_signal(signal);
880 shared_ptr<data::SignalBase> Session::signalbase_from_channel(
881 shared_ptr<sigrok::Channel> channel) const
883 for (shared_ptr<data::SignalBase> sig : signalbases_) {
885 if (sig->channel() == channel)
888 return shared_ptr<data::SignalBase>();
891 void Session::sample_thread_proc(function<void (const QString)> error_handler)
893 assert(error_handler);
898 cur_samplerate_ = device_->read_config<uint64_t>(ConfigKey::SAMPLERATE);
900 out_of_memory_ = false;
905 error_handler(e.what());
909 set_capture_state(device_->session()->trigger() ?
910 AwaitingTrigger : Running);
915 error_handler(e.what());
916 set_capture_state(Stopped);
920 set_capture_state(Stopped);
922 // Confirm that SR_DF_END was received
923 if (cur_logic_segment_) {
924 qDebug("SR_DF_END was not received.");
928 // Optimize memory usage
929 free_unused_memory();
931 // We now have unsaved data unless we just "captured" from a file
932 shared_ptr<devices::File> file_device =
933 dynamic_pointer_cast<devices::File>(device_);
939 error_handler(tr("Out of memory, acquisition stopped."));
942 void Session::free_unused_memory()
944 for (shared_ptr<data::SignalData> data : all_signal_data_) {
945 const vector< shared_ptr<data::Segment> > segments = data->segments();
947 for (shared_ptr<data::Segment> segment : segments) {
948 segment->free_unused_memory();
953 void Session::feed_in_header()
955 // Nothing to do here for now
958 void Session::feed_in_meta(shared_ptr<Meta> meta)
960 for (auto entry : meta->config()) {
961 switch (entry.first->id()) {
962 case SR_CONF_SAMPLERATE:
963 // We can't rely on the header to always contain the sample rate,
964 // so in case it's supplied via a meta packet, we use it.
965 if (!cur_samplerate_)
966 cur_samplerate_ = g_variant_get_uint64(entry.second.gobj());
968 /// @todo handle samplerate changes
971 // Unknown metadata is not an error.
979 void Session::feed_in_trigger()
981 // The channel containing most samples should be most accurate
982 uint64_t sample_count = 0;
985 for (const shared_ptr<pv::data::SignalData> d : all_signal_data_) {
987 uint64_t temp_count = 0;
989 const vector< shared_ptr<pv::data::Segment> > segments =
991 for (const shared_ptr<pv::data::Segment> &s : segments)
992 temp_count += s->get_sample_count();
994 if (temp_count > sample_count)
995 sample_count = temp_count;
999 trigger_event(sample_count / get_samplerate());
1002 void Session::feed_in_frame_begin()
1004 frame_began_ = true;
1006 if (cur_logic_segment_ || !cur_analog_segments_.empty())
1010 void Session::feed_in_frame_end()
1013 lock_guard<recursive_mutex> lock(data_mutex_);
1014 cur_logic_segment_.reset();
1015 cur_analog_segments_.clear();
1019 frame_began_ = false;
1024 void Session::feed_in_logic(shared_ptr<Logic> logic)
1026 if (!cur_samplerate_)
1027 cur_samplerate_ = device_->read_config<uint64_t>(ConfigKey::SAMPLERATE);
1029 lock_guard<recursive_mutex> lock(data_mutex_);
1032 // The only reason logic_data_ would not have been created is
1033 // if it was not possible to determine the signals when the
1034 // device was created.
1038 if (!cur_logic_segment_) {
1039 // This could be the first packet after a trigger
1040 set_capture_state(Running);
1042 // Create a new data segment
1043 cur_logic_segment_ = make_shared<data::LogicSegment>(
1044 *logic_data_, logic->unit_size(), cur_samplerate_);
1045 logic_data_->push_segment(cur_logic_segment_);
1047 // @todo Putting this here means that only listeners querying
1048 // for logic will be notified. Currently the only user of
1049 // frame_began is DecoderStack, but in future we need to signal
1050 // this after both analog and logic sweeps have begun.
1054 cur_logic_segment_->append_payload(logic);
1059 void Session::feed_in_analog(shared_ptr<Analog> analog)
1061 if (!cur_samplerate_)
1062 cur_samplerate_ = device_->read_config<uint64_t>(ConfigKey::SAMPLERATE);
1064 lock_guard<recursive_mutex> lock(data_mutex_);
1066 const vector<shared_ptr<Channel>> channels = analog->channels();
1067 const unsigned int channel_count = channels.size();
1068 const size_t sample_count = analog->num_samples() / channel_count;
1069 bool sweep_beginning = false;
1071 unique_ptr<float> data(new float[analog->num_samples()]);
1072 analog->get_data_as_float(data.get());
1074 if (signalbases_.empty())
1077 float *channel_data = data.get();
1078 for (auto channel : channels) {
1079 shared_ptr<data::AnalogSegment> segment;
1081 // Try to get the segment of the channel
1082 const map< shared_ptr<Channel>, shared_ptr<data::AnalogSegment> >::
1083 iterator iter = cur_analog_segments_.find(channel);
1084 if (iter != cur_analog_segments_.end())
1085 segment = (*iter).second;
1087 // If no segment was found, this means we haven't
1088 // created one yet. i.e. this is the first packet
1089 // in the sweep containing this segment.
1090 sweep_beginning = true;
1092 // Find the analog data associated with the channel
1093 shared_ptr<data::SignalBase> base = signalbase_from_channel(channel);
1096 shared_ptr<data::Analog> data(base->analog_data());
1099 // Create a segment, keep it in the maps of channels
1100 segment = make_shared<data::AnalogSegment>(
1101 *data, cur_samplerate_);
1102 cur_analog_segments_[channel] = segment;
1104 // Push the segment into the analog data.
1105 data->push_segment(segment);
1110 // Append the samples in the segment
1111 segment->append_interleaved_samples(channel_data++, sample_count,
1115 if (sweep_beginning) {
1116 // This could be the first packet after a trigger
1117 set_capture_state(Running);
1123 void Session::data_feed_in(shared_ptr<sigrok::Device> device,
1124 shared_ptr<Packet> packet)
1129 assert(device == device_->device());
1132 switch (packet->type()->id()) {
1138 feed_in_meta(dynamic_pointer_cast<Meta>(packet->payload()));
1147 feed_in_logic(dynamic_pointer_cast<Logic>(packet->payload()));
1148 } catch (bad_alloc) {
1149 out_of_memory_ = true;
1156 feed_in_analog(dynamic_pointer_cast<Analog>(packet->payload()));
1157 } catch (bad_alloc) {
1158 out_of_memory_ = true;
1163 case SR_DF_FRAME_BEGIN:
1164 feed_in_frame_begin();
1167 case SR_DF_FRAME_END:
1168 feed_in_frame_end();
1172 // Strictly speaking, this is performed when a frame end marker was
1173 // received, so there's no point doing this again. However, not all
1174 // devices use frames, and for those devices, we need to do it here.
1176 lock_guard<recursive_mutex> lock(data_mutex_);
1177 cur_logic_segment_.reset();
1178 cur_analog_segments_.clear();
1187 void Session::on_data_saved()