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 "mainwindow.hpp"
32 #include "session.hpp"
34 #include "data/analog.hpp"
35 #include "data/analogsegment.hpp"
36 #include "data/decode/decoder.hpp"
37 #include "data/logic.hpp"
38 #include "data/logicsegment.hpp"
39 #include "data/signalbase.hpp"
41 #include "devices/hardwaredevice.hpp"
42 #include "devices/inputfile.hpp"
43 #include "devices/sessionfile.hpp"
45 #include "toolbars/mainbar.hpp"
47 #include "views/trace/analogsignal.hpp"
48 #include "views/trace/decodetrace.hpp"
49 #include "views/trace/logicsignal.hpp"
50 #include "views/trace/signal.hpp"
51 #include "views/trace/view.hpp"
53 #include <libsigrokcxx/libsigrokcxx.hpp>
56 #include <libsigrokdecode/libsigrokdecode.h>
57 #include "data/decodesignal.hpp"
61 using std::dynamic_pointer_cast;
64 using std::lock_guard;
67 using std::make_shared;
73 using std::recursive_mutex;
74 using std::runtime_error;
75 using std::shared_ptr;
77 using std::unique_ptr;
78 using std::unordered_set;
82 using sigrok::Channel;
83 using sigrok::ConfigKey;
84 using sigrok::DatafeedCallbackFunction;
86 using sigrok::InputFormat;
90 using sigrok::Session;
92 using Glib::VariantBase;
96 shared_ptr<sigrok::Context> Session::sr_context;
98 Session::Session(DeviceManager &device_manager, QString name) :
99 device_manager_(device_manager),
102 capture_state_(Stopped),
110 // Stop and join to the thread
114 DeviceManager& Session::device_manager()
116 return device_manager_;
119 const DeviceManager& Session::device_manager() const
121 return device_manager_;
124 shared_ptr<sigrok::Session> Session::session() const
127 return shared_ptr<sigrok::Session>();
128 return device_->session();
131 shared_ptr<devices::Device> Session::device() const
136 QString Session::name() const
141 void Session::set_name(QString name)
143 if (default_name_.isEmpty())
144 default_name_ = name;
151 const list< shared_ptr<views::ViewBase> > Session::views() const
156 shared_ptr<views::ViewBase> Session::main_view() const
161 void Session::set_main_bar(shared_ptr<pv::toolbars::MainBar> main_bar)
163 main_bar_ = main_bar;
166 shared_ptr<pv::toolbars::MainBar> Session::main_bar() const
171 bool Session::data_saved() const
176 void Session::save_settings(QSettings &settings) const
178 map<string, string> dev_info;
179 list<string> key_list;
180 int decode_signals = 0, views = 0;
183 shared_ptr<devices::HardwareDevice> hw_device =
184 dynamic_pointer_cast< devices::HardwareDevice >(device_);
187 settings.setValue("device_type", "hardware");
188 settings.beginGroup("device");
190 key_list.emplace_back("vendor");
191 key_list.emplace_back("model");
192 key_list.emplace_back("version");
193 key_list.emplace_back("serial_num");
194 key_list.emplace_back("connection_id");
196 dev_info = device_manager_.get_device_info(device_);
198 for (string key : key_list) {
199 if (dev_info.count(key))
200 settings.setValue(QString::fromUtf8(key.c_str()),
201 QString::fromUtf8(dev_info.at(key).c_str()));
203 settings.remove(QString::fromUtf8(key.c_str()));
209 shared_ptr<devices::SessionFile> sessionfile_device =
210 dynamic_pointer_cast< devices::SessionFile >(device_);
212 if (sessionfile_device) {
213 settings.setValue("device_type", "sessionfile");
214 settings.beginGroup("device");
215 settings.setValue("filename", QString::fromStdString(
216 sessionfile_device->full_name()));
220 // Save channels and decoders
221 for (shared_ptr<data::SignalBase> base : signalbases_) {
223 if (base->is_decode_signal()) {
224 settings.beginGroup("decode_signal" + QString::number(decode_signals++));
225 base->save_settings(settings);
230 settings.beginGroup(base->internal_name());
231 base->save_settings(settings);
236 settings.setValue("decode_signals", decode_signals);
238 // Save view states and their signal settings
239 // Note: main_view must be saved as view0
240 settings.beginGroup("view" + QString::number(views++));
241 main_view_->save_settings(settings);
244 for (shared_ptr<views::ViewBase> view : views_) {
245 if (view != main_view_) {
246 settings.beginGroup("view" + QString::number(views++));
247 view->save_settings(settings);
252 settings.setValue("views", views);
256 void Session::restore_settings(QSettings &settings)
258 shared_ptr<devices::Device> device;
260 QString device_type = settings.value("device_type").toString();
262 if (device_type == "hardware") {
263 map<string, string> dev_info;
264 list<string> key_list;
266 // Re-select last used device if possible but only if it's not demo
267 settings.beginGroup("device");
268 key_list.emplace_back("vendor");
269 key_list.emplace_back("model");
270 key_list.emplace_back("version");
271 key_list.emplace_back("serial_num");
272 key_list.emplace_back("connection_id");
274 for (string key : key_list) {
275 const QString k = QString::fromStdString(key);
276 if (!settings.contains(k))
279 const string value = settings.value(k).toString().toStdString();
281 dev_info.insert(make_pair(key, value));
284 if (dev_info.count("model") > 0)
285 device = device_manager_.find_device_from_info(dev_info);
293 if (device_type == "sessionfile") {
294 settings.beginGroup("device");
295 QString filename = settings.value("filename").toString();
298 if (QFileInfo(filename).isReadable()) {
299 device = make_shared<devices::SessionFile>(device_manager_.context(),
300 filename.toStdString());
303 start_capture([](QString infoMessage) {
304 // TODO Emulate noquote()
305 qDebug() << "Session error:" << infoMessage; });
307 set_name(QFileInfo(filename).fileName());
313 for (shared_ptr<data::SignalBase> base : signalbases_) {
314 settings.beginGroup(base->internal_name());
315 base->restore_settings(settings);
321 int decode_signals = settings.value("decode_signals").toInt();
323 for (int i = 0; i < decode_signals; i++) {
324 settings.beginGroup("decode_signal" + QString::number(i));
325 shared_ptr<data::DecodeSignal> signal = add_decode_signal();
326 signal->restore_settings(settings);
332 int views = settings.value("views").toInt();
334 for (int i = 0; i < views; i++) {
335 settings.beginGroup("view" + QString::number(i));
338 views::ViewType type = (views::ViewType)settings.value("type").toInt();
339 add_view(name_, type, this);
340 views_.back()->restore_settings(settings);
342 main_view_->restore_settings(settings);
349 void Session::select_device(shared_ptr<devices::Device> device)
355 set_default_device();
356 } catch (const QString &e) {
357 MainWindow::show_session_error(tr("Failed to select device"), e);
361 void Session::set_device(shared_ptr<devices::Device> device)
365 // Ensure we are not capturing before setting the device
373 // Revert name back to default name (e.g. "Session 1") as the data is gone
374 name_ = default_name_;
377 // Remove all stored data
378 for (shared_ptr<views::ViewBase> view : views_) {
379 view->clear_signals();
381 view->clear_decode_signals();
384 for (const shared_ptr<data::SignalData> d : all_signal_data_)
386 all_signal_data_.clear();
387 signalbases_.clear();
388 cur_logic_segment_.reset();
390 for (auto entry : cur_analog_segments_) {
391 shared_ptr<sigrok::Channel>(entry.first).reset();
392 shared_ptr<data::AnalogSegment>(entry.second).reset();
399 device_ = move(device);
403 } catch (const QString &e) {
405 MainWindow::show_session_error(tr("Failed to open device"), e);
409 device_->session()->add_datafeed_callback([=]
410 (shared_ptr<sigrok::Device> device, shared_ptr<Packet> packet) {
411 data_feed_in(device, packet);
420 void Session::set_default_device()
422 const list< shared_ptr<devices::HardwareDevice> > &devices =
423 device_manager_.devices();
428 // Try and find the demo device and select that by default
429 const auto iter = find_if(devices.begin(), devices.end(),
430 [] (const shared_ptr<devices::HardwareDevice> &d) {
431 return d->hardware_device()->driver()->name() == "demo"; });
432 set_device((iter == devices.end()) ? devices.front() : *iter);
436 * Convert generic options to data types that are specific to InputFormat.
438 * @param[in] user_spec Vector of tokenized words, string format.
439 * @param[in] fmt_opts Input format's options, result of InputFormat::options().
441 * @return Map of options suitable for InputFormat::create_input().
443 map<string, Glib::VariantBase>
444 Session::input_format_options(vector<string> user_spec,
445 map<string, shared_ptr<Option>> fmt_opts)
447 map<string, Glib::VariantBase> result;
449 for (auto entry : user_spec) {
451 * Split key=value specs. Accept entries without separator
452 * (for simplified boolean specifications).
455 size_t pos = entry.find("=");
456 if (pos == std::string::npos) {
460 key = entry.substr(0, pos);
461 val = entry.substr(pos + 1);
465 * Skip user specifications that are not a member of the
466 * format's set of supported options. Have the text input
467 * spec converted to the required input format specific
470 auto found = fmt_opts.find(key);
471 if (found == fmt_opts.end())
473 shared_ptr<Option> opt = found->second;
474 result[key] = opt->parse_string(val);
480 void Session::load_init_file(const string &file_name, const string &format)
482 shared_ptr<InputFormat> input_format;
483 map<string, Glib::VariantBase> input_opts;
485 if (!format.empty()) {
486 // Got a user provided input format spec.
487 const map<string, shared_ptr<InputFormat> > formats =
488 device_manager_.context()->input_formats();
489 auto user_opts = pv::util::split_string(format, ":");
490 string user_name = user_opts.front();
491 user_opts.erase(user_opts.begin());
492 const auto iter = find_if(formats.begin(), formats.end(),
493 [&](const pair<string, shared_ptr<InputFormat> > f) {
494 return f.first == user_name; });
495 if (iter == formats.end()) {
496 MainWindow::show_session_error(tr("Error"),
497 tr("Unexpected input format: %s").arg(QString::fromStdString(format)));
500 input_format = (*iter).second;
501 input_opts = input_format_options(user_opts,
502 input_format->options());
504 // (Try to) auto detect the input format. Lookup failure
505 // is not fatal, when no input module claimed responsibility,
506 // then a session file gets loaded.
507 input_format = device_manager_.context()->input_format_match(file_name);
510 load_file(QString::fromStdString(file_name), input_format, input_opts);
513 void Session::load_file(QString file_name,
514 shared_ptr<sigrok::InputFormat> format,
515 const map<string, Glib::VariantBase> &options)
517 const QString errorMessage(
518 QString("Failed to load file %1").arg(file_name));
522 set_device(shared_ptr<devices::Device>(
523 new devices::InputFile(
524 device_manager_.context(),
525 file_name.toStdString(),
528 set_device(shared_ptr<devices::Device>(
529 new devices::SessionFile(
530 device_manager_.context(),
531 file_name.toStdString())));
533 MainWindow::show_session_error(tr("Failed to load ") + file_name, e.what());
534 set_default_device();
535 main_bar_->update_device_list();
539 main_bar_->update_device_list();
541 start_capture([&, errorMessage](QString infoMessage) {
542 MainWindow::show_session_error(errorMessage, infoMessage); });
544 set_name(QFileInfo(file_name).fileName());
547 Session::capture_state Session::get_capture_state() const
549 lock_guard<mutex> lock(sampling_mutex_);
550 return capture_state_;
553 void Session::start_capture(function<void (const QString)> error_handler)
556 error_handler(tr("No active device set, can't start acquisition."));
562 // Check that at least one channel is enabled
563 const shared_ptr<sigrok::Device> sr_dev = device_->device();
565 const auto channels = sr_dev->channels();
566 if (!any_of(channels.begin(), channels.end(),
567 [](shared_ptr<Channel> channel) {
568 return channel->enabled(); })) {
569 error_handler(tr("No channels enabled."));
575 for (const shared_ptr<data::SignalData> d : all_signal_data_)
578 trigger_list_.clear();
580 // Revert name back to default name (e.g. "Session 1") for real devices
581 // as the (possibly saved) data is gone. File devices keep their name.
582 shared_ptr<devices::HardwareDevice> hw_device =
583 dynamic_pointer_cast< devices::HardwareDevice >(device_);
586 name_ = default_name_;
591 sampling_thread_ = std::thread(
592 &Session::sample_thread_proc, this, error_handler);
595 void Session::stop_capture()
597 if (get_capture_state() != Stopped)
600 // Check that sampling stopped
601 if (sampling_thread_.joinable())
602 sampling_thread_.join();
605 void Session::register_view(shared_ptr<views::ViewBase> view)
607 if (views_.empty()) {
611 views_.push_back(view);
613 // Add all device signals
616 // Add all other signals
617 unordered_set< shared_ptr<data::SignalBase> > view_signalbases =
620 views::trace::View *trace_view =
621 qobject_cast<views::trace::View*>(view.get());
624 for (shared_ptr<data::SignalBase> signalbase : signalbases_) {
625 const int sb_exists = count_if(
626 view_signalbases.cbegin(), view_signalbases.cend(),
627 [&](const shared_ptr<data::SignalBase> &sb) {
628 return sb == signalbase;
630 // Add the signal to the view as it doesn't have it yet
632 switch (signalbase->type()) {
633 case data::SignalBase::AnalogChannel:
634 case data::SignalBase::LogicChannel:
635 case data::SignalBase::DecodeChannel:
637 trace_view->add_decode_signal(
638 dynamic_pointer_cast<data::DecodeSignal>(signalbase));
641 case data::SignalBase::MathChannel:
651 void Session::deregister_view(shared_ptr<views::ViewBase> view)
653 views_.remove_if([&](shared_ptr<views::ViewBase> v) { return v == view; });
655 if (views_.empty()) {
658 // Without a view there can be no main bar
663 bool Session::has_view(shared_ptr<views::ViewBase> view)
665 for (shared_ptr<views::ViewBase> v : views_)
672 double Session::get_samplerate() const
674 double samplerate = 0.0;
676 for (const shared_ptr<pv::data::SignalData> d : all_signal_data_) {
678 const vector< shared_ptr<pv::data::Segment> > segments =
680 for (const shared_ptr<pv::data::Segment> &s : segments)
681 samplerate = max(samplerate, s->samplerate());
683 // If there is no sample rate given we use samples as unit
684 if (samplerate == 0.0)
690 uint32_t Session::get_segment_count() const
694 // Find the highest number of segments
695 for (shared_ptr<data::SignalData> data : all_signal_data_)
696 if (data->get_segment_count() > value)
697 value = data->get_segment_count();
702 vector<util::Timestamp> Session::get_triggers(uint32_t segment_id) const
704 vector<util::Timestamp> result;
706 for (pair<uint32_t, util::Timestamp> entry : trigger_list_)
707 if (entry.first == segment_id)
708 result.push_back(entry.second);
713 const unordered_set< shared_ptr<data::SignalBase> > Session::signalbases() const
718 bool Session::all_segments_complete(uint32_t segment_id) const
720 bool all_complete = true;
722 for (shared_ptr<data::SignalBase> base : signalbases_)
723 if (!base->segment_is_complete(segment_id))
724 all_complete = false;
730 shared_ptr<data::DecodeSignal> Session::add_decode_signal()
732 shared_ptr<data::DecodeSignal> signal;
735 // Create the decode signal
736 signal = make_shared<data::DecodeSignal>(*this);
738 signalbases_.insert(signal);
740 // Add the decode signal to all views
741 for (shared_ptr<views::ViewBase> view : views_)
742 view->add_decode_signal(signal);
743 } catch (runtime_error& e) {
744 remove_decode_signal(signal);
753 void Session::remove_decode_signal(shared_ptr<data::DecodeSignal> signal)
755 signalbases_.erase(signal);
757 for (shared_ptr<views::ViewBase> view : views_)
758 view->remove_decode_signal(signal);
764 void Session::set_capture_state(capture_state state)
769 lock_guard<mutex> lock(sampling_mutex_);
770 changed = capture_state_ != state;
771 capture_state_ = state;
775 capture_state_changed(state);
778 void Session::update_signals()
781 signalbases_.clear();
783 for (shared_ptr<views::ViewBase> view : views_) {
784 view->clear_signals();
786 view->clear_decode_signals();
792 lock_guard<recursive_mutex> lock(data_mutex_);
794 const shared_ptr<sigrok::Device> sr_dev = device_->device();
796 signalbases_.clear();
798 for (shared_ptr<views::ViewBase> view : views_) {
799 view->clear_signals();
801 view->clear_decode_signals();
807 // Detect what data types we will receive
808 auto channels = sr_dev->channels();
809 unsigned int logic_channel_count = count_if(
810 channels.begin(), channels.end(),
811 [] (shared_ptr<Channel> channel) {
812 return channel->type() == sigrok::ChannelType::LOGIC; });
814 // Create data containers for the logic data segments
816 lock_guard<recursive_mutex> data_lock(data_mutex_);
818 if (logic_channel_count == 0) {
820 } else if (!logic_data_ ||
821 logic_data_->num_channels() != logic_channel_count) {
822 logic_data_.reset(new data::Logic(
823 logic_channel_count));
828 // Make the signals list
829 for (shared_ptr<views::ViewBase> viewbase : views_) {
830 views::trace::View *trace_view =
831 qobject_cast<views::trace::View*>(viewbase.get());
834 unordered_set< shared_ptr<views::trace::Signal> >
835 prev_sigs(trace_view->signals());
836 trace_view->clear_signals();
838 for (auto channel : sr_dev->channels()) {
839 shared_ptr<data::SignalBase> signalbase;
840 shared_ptr<views::trace::Signal> signal;
842 // Find the channel in the old signals
843 const auto iter = find_if(
844 prev_sigs.cbegin(), prev_sigs.cend(),
845 [&](const shared_ptr<views::trace::Signal> &s) {
846 return s->base()->channel() == channel;
848 if (iter != prev_sigs.end()) {
849 // Copy the signal from the old set to the new
851 trace_view->add_signal(signal);
853 // Find the signalbase for this channel if possible
855 for (const shared_ptr<data::SignalBase> b : signalbases_)
856 if (b->channel() == channel)
859 switch(channel->type()->id()) {
860 case SR_CHANNEL_LOGIC:
862 signalbase = make_shared<data::SignalBase>(channel,
863 data::SignalBase::LogicChannel);
864 signalbases_.insert(signalbase);
866 all_signal_data_.insert(logic_data_);
867 signalbase->set_data(logic_data_);
869 connect(this, SIGNAL(capture_state_changed(int)),
870 signalbase.get(), SLOT(on_capture_state_changed(int)));
873 signal = shared_ptr<views::trace::Signal>(
874 new views::trace::LogicSignal(*this,
875 device_, signalbase));
876 trace_view->add_signal(signal);
879 case SR_CHANNEL_ANALOG:
882 signalbase = make_shared<data::SignalBase>(channel,
883 data::SignalBase::AnalogChannel);
884 signalbases_.insert(signalbase);
886 shared_ptr<data::Analog> data(new data::Analog());
887 all_signal_data_.insert(data);
888 signalbase->set_data(data);
890 connect(this, SIGNAL(capture_state_changed(int)),
891 signalbase.get(), SLOT(on_capture_state_changed(int)));
894 signal = shared_ptr<views::trace::Signal>(
895 new views::trace::AnalogSignal(
897 trace_view->add_signal(signal);
913 shared_ptr<data::SignalBase> Session::signalbase_from_channel(
914 shared_ptr<sigrok::Channel> channel) const
916 for (shared_ptr<data::SignalBase> sig : signalbases_) {
918 if (sig->channel() == channel)
921 return shared_ptr<data::SignalBase>();
924 void Session::sample_thread_proc(function<void (const QString)> error_handler)
926 assert(error_handler);
931 cur_samplerate_ = device_->read_config<uint64_t>(ConfigKey::SAMPLERATE);
933 out_of_memory_ = false;
936 lock_guard<recursive_mutex> lock(data_mutex_);
937 cur_logic_segment_.reset();
938 cur_analog_segments_.clear();
940 highest_segment_id_ = -1;
941 frame_began_ = false;
946 error_handler(e.what());
950 set_capture_state(device_->session()->trigger() ?
951 AwaitingTrigger : Running);
956 error_handler(e.what());
957 set_capture_state(Stopped);
961 set_capture_state(Stopped);
963 // Confirm that SR_DF_END was received
964 if (cur_logic_segment_)
965 qDebug() << "WARNING: SR_DF_END was not received.";
967 // Optimize memory usage
968 free_unused_memory();
970 // We now have unsaved data unless we just "captured" from a file
971 shared_ptr<devices::File> file_device =
972 dynamic_pointer_cast<devices::File>(device_);
978 error_handler(tr("Out of memory, acquisition stopped."));
981 void Session::free_unused_memory()
983 for (shared_ptr<data::SignalData> data : all_signal_data_) {
984 const vector< shared_ptr<data::Segment> > segments = data->segments();
986 for (shared_ptr<data::Segment> segment : segments) {
987 segment->free_unused_memory();
992 void Session::signal_new_segment()
994 int new_segment_id = 0;
996 if ((cur_logic_segment_ != nullptr) || !cur_analog_segments_.empty()) {
998 // Determine new frame/segment number, assuming that all
999 // signals have the same number of frames/segments
1000 if (cur_logic_segment_) {
1001 new_segment_id = logic_data_->get_segment_count() - 1;
1003 shared_ptr<sigrok::Channel> any_channel =
1004 (*cur_analog_segments_.begin()).first;
1006 shared_ptr<data::SignalBase> base = signalbase_from_channel(any_channel);
1009 shared_ptr<data::Analog> data(base->analog_data());
1012 new_segment_id = data->get_segment_count() - 1;
1016 if (new_segment_id > highest_segment_id_) {
1017 highest_segment_id_ = new_segment_id;
1018 new_segment(highest_segment_id_);
1022 void Session::signal_segment_completed()
1026 for (shared_ptr<data::SignalBase> signalbase : signalbases_) {
1027 // We only care about analog and logic channels, not derived ones
1028 if (signalbase->type() == data::SignalBase::AnalogChannel) {
1029 segment_id = signalbase->analog_data()->get_segment_count() - 1;
1033 if (signalbase->type() == data::SignalBase::LogicChannel) {
1034 segment_id = signalbase->logic_data()->get_segment_count() - 1;
1039 if (segment_id >= 0)
1040 segment_completed(segment_id);
1043 void Session::feed_in_header()
1045 // Nothing to do here for now
1048 void Session::feed_in_meta(shared_ptr<Meta> meta)
1050 for (auto entry : meta->config()) {
1051 switch (entry.first->id()) {
1052 case SR_CONF_SAMPLERATE:
1053 // We can't rely on the header to always contain the sample rate,
1054 // so in case it's supplied via a meta packet, we use it.
1055 if (!cur_samplerate_)
1056 cur_samplerate_ = g_variant_get_uint64(entry.second.gobj());
1058 /// @todo handle samplerate changes
1061 // Unknown metadata is not an error.
1069 void Session::feed_in_trigger()
1071 // The channel containing most samples should be most accurate
1072 uint64_t sample_count = 0;
1075 for (const shared_ptr<pv::data::SignalData> d : all_signal_data_) {
1077 uint64_t temp_count = 0;
1079 const vector< shared_ptr<pv::data::Segment> > segments =
1081 for (const shared_ptr<pv::data::Segment> &s : segments)
1082 temp_count += s->get_sample_count();
1084 if (temp_count > sample_count)
1085 sample_count = temp_count;
1089 uint32_t segment_id = 0; // Default segment when no frames are used
1091 // If a frame began, we'd ideally be able to use the highest segment ID for
1092 // the trigger. However, as new segments are only created when logic or
1093 // analog data comes in, this doesn't work if the trigger appears right
1094 // after the beginning of the frame, before any sample data.
1095 // For this reason, we use highest segment ID + 1 if no sample data came in
1096 // yet and the highest segment ID otherwise.
1098 segment_id = highest_segment_id_;
1099 if (!cur_logic_segment_ && (cur_analog_segments_.size() == 0))
1103 // TODO Create timestamp from segment start time + segment's current sample count
1104 util::Timestamp timestamp = sample_count / get_samplerate();
1105 trigger_list_.emplace_back(segment_id, timestamp);
1106 trigger_event(segment_id, timestamp);
1109 void Session::feed_in_frame_begin()
1111 frame_began_ = true;
1114 void Session::feed_in_frame_end()
1120 lock_guard<recursive_mutex> lock(data_mutex_);
1122 if (cur_logic_segment_)
1123 cur_logic_segment_->set_complete();
1125 for (auto entry : cur_analog_segments_) {
1126 shared_ptr<data::AnalogSegment> segment = entry.second;
1127 segment->set_complete();
1130 cur_logic_segment_.reset();
1131 cur_analog_segments_.clear();
1134 frame_began_ = false;
1136 signal_segment_completed();
1139 void Session::feed_in_logic(shared_ptr<Logic> logic)
1141 if (logic->data_length() == 0) {
1142 qDebug() << "WARNING: Received logic packet with 0 samples.";
1146 if (!cur_samplerate_)
1147 cur_samplerate_ = device_->read_config<uint64_t>(ConfigKey::SAMPLERATE);
1149 lock_guard<recursive_mutex> lock(data_mutex_);
1152 // The only reason logic_data_ would not have been created is
1153 // if it was not possible to determine the signals when the
1154 // device was created.
1158 if (!cur_logic_segment_) {
1159 // This could be the first packet after a trigger
1160 set_capture_state(Running);
1162 // Create a new data segment
1163 cur_logic_segment_ = make_shared<data::LogicSegment>(
1164 *logic_data_, logic_data_->get_segment_count(),
1165 logic->unit_size(), cur_samplerate_);
1166 logic_data_->push_segment(cur_logic_segment_);
1168 signal_new_segment();
1171 cur_logic_segment_->append_payload(logic);
1176 void Session::feed_in_analog(shared_ptr<Analog> analog)
1178 if (analog->num_samples() == 0) {
1179 qDebug() << "WARNING: Received analog packet with 0 samples.";
1183 if (!cur_samplerate_)
1184 cur_samplerate_ = device_->read_config<uint64_t>(ConfigKey::SAMPLERATE);
1186 lock_guard<recursive_mutex> lock(data_mutex_);
1188 const vector<shared_ptr<Channel>> channels = analog->channels();
1189 const unsigned int channel_count = channels.size();
1190 const size_t sample_count = analog->num_samples() / channel_count;
1191 bool sweep_beginning = false;
1193 unique_ptr<float[]> data(new float[analog->num_samples()]);
1194 analog->get_data_as_float(data.get());
1196 if (signalbases_.empty())
1199 float *channel_data = data.get();
1200 for (auto channel : channels) {
1201 shared_ptr<data::AnalogSegment> segment;
1203 // Try to get the segment of the channel
1204 const map< shared_ptr<Channel>, shared_ptr<data::AnalogSegment> >::
1205 iterator iter = cur_analog_segments_.find(channel);
1206 if (iter != cur_analog_segments_.end())
1207 segment = (*iter).second;
1209 // If no segment was found, this means we haven't
1210 // created one yet. i.e. this is the first packet
1211 // in the sweep containing this segment.
1212 sweep_beginning = true;
1214 // Find the analog data associated with the channel
1215 shared_ptr<data::SignalBase> base = signalbase_from_channel(channel);
1218 shared_ptr<data::Analog> data(base->analog_data());
1221 // Create a segment, keep it in the maps of channels
1222 segment = make_shared<data::AnalogSegment>(
1223 *data, data->get_segment_count(), cur_samplerate_);
1224 cur_analog_segments_[channel] = segment;
1226 // Push the segment into the analog data.
1227 data->push_segment(segment);
1229 signal_new_segment();
1234 // Append the samples in the segment
1235 segment->append_interleaved_samples(channel_data++, sample_count,
1239 if (sweep_beginning) {
1240 // This could be the first packet after a trigger
1241 set_capture_state(Running);
1247 void Session::data_feed_in(shared_ptr<sigrok::Device> device,
1248 shared_ptr<Packet> packet)
1253 assert(device == device_->device());
1256 switch (packet->type()->id()) {
1262 feed_in_meta(dynamic_pointer_cast<Meta>(packet->payload()));
1271 feed_in_logic(dynamic_pointer_cast<Logic>(packet->payload()));
1272 } catch (bad_alloc&) {
1273 out_of_memory_ = true;
1280 feed_in_analog(dynamic_pointer_cast<Analog>(packet->payload()));
1281 } catch (bad_alloc&) {
1282 out_of_memory_ = true;
1287 case SR_DF_FRAME_BEGIN:
1288 feed_in_frame_begin();
1291 case SR_DF_FRAME_END:
1292 feed_in_frame_end();
1296 // Strictly speaking, this is performed when a frame end marker was
1297 // received, so there's no point doing this again. However, not all
1298 // devices use frames, and for those devices, we need to do it here.
1300 lock_guard<recursive_mutex> lock(data_mutex_);
1302 if (cur_logic_segment_)
1303 cur_logic_segment_->set_complete();
1305 for (auto entry : cur_analog_segments_) {
1306 shared_ptr<data::AnalogSegment> segment = entry.second;
1307 segment->set_complete();
1310 cur_logic_segment_.reset();
1311 cur_analog_segments_.clear();
1320 void Session::on_data_saved()