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 <gstreamermm.h>
57 #include <libsigrokflow/libsigrokflow.hpp>
61 #include <libsigrokdecode/libsigrokdecode.h>
62 #include "data/decodesignal.hpp"
66 using std::dynamic_pointer_cast;
69 using std::lock_guard;
72 using std::make_shared;
78 using std::recursive_mutex;
79 using std::runtime_error;
80 using std::shared_ptr;
83 using std::unique_lock;
85 using std::unique_ptr;
86 using std::unordered_set;
90 using sigrok::Channel;
91 using sigrok::ConfigKey;
92 using sigrok::DatafeedCallbackFunction;
94 using sigrok::InputFormat;
98 using sigrok::Session;
100 using Glib::VariantBase;
104 using Gst::ElementFactory;
110 shared_ptr<sigrok::Context> Session::sr_context;
112 Session::Session(DeviceManager &device_manager, QString name) :
113 device_manager_(device_manager),
116 capture_state_(Stopped),
124 // Stop and join to the thread
128 DeviceManager& Session::device_manager()
130 return device_manager_;
133 const DeviceManager& Session::device_manager() const
135 return device_manager_;
138 shared_ptr<sigrok::Session> Session::session() const
141 return shared_ptr<sigrok::Session>();
142 return device_->session();
145 shared_ptr<devices::Device> Session::device() const
150 QString Session::name() const
155 void Session::set_name(QString name)
157 if (default_name_.isEmpty())
158 default_name_ = name;
165 const list< shared_ptr<views::ViewBase> > Session::views() const
170 shared_ptr<views::ViewBase> Session::main_view() const
175 void Session::set_main_bar(shared_ptr<pv::toolbars::MainBar> main_bar)
177 main_bar_ = main_bar;
180 shared_ptr<pv::toolbars::MainBar> Session::main_bar() const
185 bool Session::data_saved() const
190 void Session::save_setup(QSettings &settings) const
192 int decode_signals = 0, views = 0;
194 // Save channels and decoders
195 for (const shared_ptr<data::SignalBase>& base : signalbases_) {
197 if (base->is_decode_signal()) {
198 settings.beginGroup("decode_signal" + QString::number(decode_signals++));
199 base->save_settings(settings);
204 settings.beginGroup(base->internal_name());
205 base->save_settings(settings);
210 settings.setValue("decode_signals", decode_signals);
212 // Save view states and their signal settings
213 // Note: main_view must be saved as view0
214 settings.beginGroup("view" + QString::number(views++));
215 main_view_->save_settings(settings);
218 for (const shared_ptr<views::ViewBase>& view : views_) {
219 if (view != main_view_) {
220 settings.beginGroup("view" + QString::number(views++));
221 view->save_settings(settings);
226 settings.setValue("views", views);
229 void Session::save_settings(QSettings &settings) const
231 map<string, string> dev_info;
232 list<string> key_list;
235 shared_ptr<devices::HardwareDevice> hw_device =
236 dynamic_pointer_cast< devices::HardwareDevice >(device_);
239 settings.setValue("device_type", "hardware");
240 settings.beginGroup("device");
242 key_list.emplace_back("vendor");
243 key_list.emplace_back("model");
244 key_list.emplace_back("version");
245 key_list.emplace_back("serial_num");
246 key_list.emplace_back("connection_id");
248 dev_info = device_manager_.get_device_info(device_);
250 for (string& key : key_list) {
251 if (dev_info.count(key))
252 settings.setValue(QString::fromUtf8(key.c_str()),
253 QString::fromUtf8(dev_info.at(key).c_str()));
255 settings.remove(QString::fromUtf8(key.c_str()));
261 shared_ptr<devices::SessionFile> sessionfile_device =
262 dynamic_pointer_cast<devices::SessionFile>(device_);
264 if (sessionfile_device) {
265 settings.setValue("device_type", "sessionfile");
266 settings.beginGroup("device");
267 settings.setValue("filename", QString::fromStdString(
268 sessionfile_device->full_name()));
272 shared_ptr<devices::InputFile> inputfile_device =
273 dynamic_pointer_cast<devices::InputFile>(device_);
275 if (inputfile_device) {
276 settings.setValue("device_type", "inputfile");
277 settings.beginGroup("device");
278 inputfile_device->save_meta_to_settings(settings);
282 save_setup(settings);
286 void Session::restore_setup(QSettings &settings)
289 for (shared_ptr<data::SignalBase> base : signalbases_) {
290 settings.beginGroup(base->internal_name());
291 base->restore_settings(settings);
297 int decode_signals = settings.value("decode_signals").toInt();
299 for (int i = 0; i < decode_signals; i++) {
300 settings.beginGroup("decode_signal" + QString::number(i));
301 shared_ptr<data::DecodeSignal> signal = add_decode_signal();
302 signal->restore_settings(settings);
308 int views = settings.value("views").toInt();
310 for (int i = 0; i < views; i++) {
311 settings.beginGroup("view" + QString::number(i));
314 views::ViewType type = (views::ViewType)settings.value("type").toInt();
315 add_view(name_, type, this);
316 views_.back()->restore_settings(settings);
318 main_view_->restore_settings(settings);
324 void Session::restore_settings(QSettings &settings)
326 shared_ptr<devices::Device> device;
328 QString device_type = settings.value("device_type").toString();
330 if (device_type == "hardware") {
331 map<string, string> dev_info;
332 list<string> key_list;
334 // Re-select last used device if possible but only if it's not demo
335 settings.beginGroup("device");
336 key_list.emplace_back("vendor");
337 key_list.emplace_back("model");
338 key_list.emplace_back("version");
339 key_list.emplace_back("serial_num");
340 key_list.emplace_back("connection_id");
342 for (string key : key_list) {
343 const QString k = QString::fromStdString(key);
344 if (!settings.contains(k))
347 const string value = settings.value(k).toString().toStdString();
349 dev_info.insert(make_pair(key, value));
352 if (dev_info.count("model") > 0)
353 device = device_manager_.find_device_from_info(dev_info);
361 if ((device_type == "sessionfile") || (device_type == "inputfile")) {
362 if (device_type == "sessionfile") {
363 settings.beginGroup("device");
364 QString filename = settings.value("filename").toString();
367 if (QFileInfo(filename).isReadable()) {
368 device = make_shared<devices::SessionFile>(device_manager_.context(),
369 filename.toStdString());
373 if (device_type == "inputfile") {
374 settings.beginGroup("device");
375 device = make_shared<devices::InputFile>(device_manager_.context(),
383 start_capture([](QString infoMessage) {
384 // TODO Emulate noquote()
385 qDebug() << "Session error:" << infoMessage; });
387 set_name(QString::fromStdString(
388 dynamic_pointer_cast<devices::File>(device)->display_name(device_manager_)));
393 restore_setup(settings);
396 void Session::select_device(shared_ptr<devices::Device> device)
402 set_default_device();
403 } catch (const QString &e) {
404 MainWindow::show_session_error(tr("Failed to select device"), e);
408 void Session::set_device(shared_ptr<devices::Device> device)
412 // Ensure we are not capturing before setting the device
420 // Revert name back to default name (e.g. "Session 1") as the data is gone
421 name_ = default_name_;
424 // Remove all stored data and reset all views
425 for (shared_ptr<views::ViewBase> view : views_) {
426 view->clear_signals();
428 view->clear_decode_signals();
430 view->reset_view_state();
432 for (const shared_ptr<data::SignalData>& d : all_signal_data_)
434 all_signal_data_.clear();
435 signalbases_.clear();
436 cur_logic_segment_.reset();
438 for (auto& entry : cur_analog_segments_) {
439 shared_ptr<sigrok::Channel>(entry.first).reset();
440 shared_ptr<data::AnalogSegment>(entry.second).reset();
447 device_ = move(device);
451 } catch (const QString &e) {
453 MainWindow::show_session_error(tr("Failed to open device"), e);
457 device_->session()->add_datafeed_callback([=]
458 (shared_ptr<sigrok::Device> device, shared_ptr<Packet> packet) {
459 data_feed_in(device, packet);
468 void Session::set_default_device()
470 const list< shared_ptr<devices::HardwareDevice> > &devices =
471 device_manager_.devices();
476 // Try and find the demo device and select that by default
477 const auto iter = find_if(devices.begin(), devices.end(),
478 [] (const shared_ptr<devices::HardwareDevice> &d) {
479 return d->hardware_device()->driver()->name() == "demo"; });
480 set_device((iter == devices.end()) ? devices.front() : *iter);
484 * Convert generic options to data types that are specific to InputFormat.
486 * @param[in] user_spec Vector of tokenized words, string format.
487 * @param[in] fmt_opts Input format's options, result of InputFormat::options().
489 * @return Map of options suitable for InputFormat::create_input().
491 map<string, Glib::VariantBase>
492 Session::input_format_options(vector<string> user_spec,
493 map<string, shared_ptr<Option>> fmt_opts)
495 map<string, Glib::VariantBase> result;
497 for (auto& entry : user_spec) {
499 * Split key=value specs. Accept entries without separator
500 * (for simplified boolean specifications).
503 size_t pos = entry.find("=");
504 if (pos == std::string::npos) {
508 key = entry.substr(0, pos);
509 val = entry.substr(pos + 1);
513 * Skip user specifications that are not a member of the
514 * format's set of supported options. Have the text input
515 * spec converted to the required input format specific
518 auto found = fmt_opts.find(key);
519 if (found == fmt_opts.end())
521 shared_ptr<Option> opt = found->second;
522 result[key] = opt->parse_string(val);
528 void Session::load_init_file(const string &file_name, const string &format)
530 shared_ptr<InputFormat> input_format;
531 map<string, Glib::VariantBase> input_opts;
533 if (!format.empty()) {
534 const map<string, shared_ptr<InputFormat> > formats =
535 device_manager_.context()->input_formats();
536 auto user_opts = pv::util::split_string(format, ":");
537 string user_name = user_opts.front();
538 user_opts.erase(user_opts.begin());
539 const auto iter = find_if(formats.begin(), formats.end(),
540 [&](const pair<string, shared_ptr<InputFormat> > f) {
541 return f.first == user_name; });
542 if (iter == formats.end()) {
543 MainWindow::show_session_error(tr("Error"),
544 tr("Unexpected input format: %s").arg(QString::fromStdString(format)));
547 input_format = (*iter).second;
548 input_opts = input_format_options(user_opts,
549 input_format->options());
552 load_file(QString::fromStdString(file_name), input_format, input_opts);
555 void Session::load_file(QString file_name,
556 shared_ptr<sigrok::InputFormat> format,
557 const map<string, Glib::VariantBase> &options)
559 const QString errorMessage(
560 QString("Failed to load file %1").arg(file_name));
562 // In the absence of a caller's format spec, try to auto detect.
563 // Assume "sigrok session file" upon lookup miss.
565 format = device_manager_.context()->input_format_match(file_name.toStdString());
568 set_device(shared_ptr<devices::Device>(
569 new devices::InputFile(
570 device_manager_.context(),
571 file_name.toStdString(),
574 set_device(shared_ptr<devices::Device>(
575 new devices::SessionFile(
576 device_manager_.context(),
577 file_name.toStdString())));
579 MainWindow::show_session_error(tr("Failed to load ") + file_name, e.what());
580 set_default_device();
581 main_bar_->update_device_list();
585 main_bar_->update_device_list();
587 start_capture([&, errorMessage](QString infoMessage) {
588 MainWindow::show_session_error(errorMessage, infoMessage); });
590 set_name(QFileInfo(file_name).fileName());
593 Session::capture_state Session::get_capture_state() const
595 lock_guard<mutex> lock(sampling_mutex_);
596 return capture_state_;
599 void Session::start_capture(function<void (const QString)> error_handler)
602 error_handler(tr("No active device set, can't start acquisition."));
608 // Check that at least one channel is enabled
609 const shared_ptr<sigrok::Device> sr_dev = device_->device();
611 const auto channels = sr_dev->channels();
612 if (!any_of(channels.begin(), channels.end(),
613 [](shared_ptr<Channel> channel) {
614 return channel->enabled(); })) {
615 error_handler(tr("No channels enabled."));
621 for (const shared_ptr<data::SignalData>& d : all_signal_data_)
624 trigger_list_.clear();
626 // Revert name back to default name (e.g. "Session 1") for real devices
627 // as the (possibly saved) data is gone. File devices keep their name.
628 shared_ptr<devices::HardwareDevice> hw_device =
629 dynamic_pointer_cast< devices::HardwareDevice >(device_);
632 name_ = default_name_;
637 sampling_thread_ = std::thread(
638 &Session::sample_thread_proc, this, error_handler);
641 void Session::stop_capture()
643 if (get_capture_state() != Stopped)
646 // Check that sampling stopped
647 if (sampling_thread_.joinable())
648 sampling_thread_.join();
651 void Session::register_view(shared_ptr<views::ViewBase> view)
653 if (views_.empty()) {
657 views_.push_back(view);
659 // Add all device signals
662 // Add all other signals
663 unordered_set< shared_ptr<data::SignalBase> > view_signalbases =
666 views::trace::View *trace_view =
667 qobject_cast<views::trace::View*>(view.get());
670 for (const shared_ptr<data::SignalBase>& signalbase : signalbases_) {
671 const int sb_exists = count_if(
672 view_signalbases.cbegin(), view_signalbases.cend(),
673 [&](const shared_ptr<data::SignalBase> &sb) {
674 return sb == signalbase;
676 // Add the signal to the view as it doesn't have it yet
678 switch (signalbase->type()) {
679 case data::SignalBase::AnalogChannel:
680 case data::SignalBase::LogicChannel:
681 case data::SignalBase::DecodeChannel:
683 trace_view->add_decode_signal(
684 dynamic_pointer_cast<data::DecodeSignal>(signalbase));
687 case data::SignalBase::MathChannel:
697 void Session::deregister_view(shared_ptr<views::ViewBase> view)
699 views_.remove_if([&](shared_ptr<views::ViewBase> v) { return v == view; });
701 if (views_.empty()) {
704 // Without a view there can be no main bar
709 bool Session::has_view(shared_ptr<views::ViewBase> view)
711 for (shared_ptr<views::ViewBase>& v : views_)
718 double Session::get_samplerate() const
720 double samplerate = 0.0;
722 for (const shared_ptr<pv::data::SignalData>& d : all_signal_data_) {
724 const vector< shared_ptr<pv::data::Segment> > segments =
726 for (const shared_ptr<pv::data::Segment>& s : segments)
727 samplerate = max(samplerate, s->samplerate());
729 // If there is no sample rate given we use samples as unit
730 if (samplerate == 0.0)
736 uint32_t Session::get_segment_count() const
740 // Find the highest number of segments
741 for (const shared_ptr<data::SignalData>& data : all_signal_data_)
742 if (data->get_segment_count() > value)
743 value = data->get_segment_count();
748 vector<util::Timestamp> Session::get_triggers(uint32_t segment_id) const
750 vector<util::Timestamp> result;
752 for (const pair<uint32_t, util::Timestamp>& entry : trigger_list_)
753 if (entry.first == segment_id)
754 result.push_back(entry.second);
759 const unordered_set< shared_ptr<data::SignalBase> > Session::signalbases() const
764 bool Session::all_segments_complete(uint32_t segment_id) const
766 bool all_complete = true;
768 for (const shared_ptr<data::SignalBase>& base : signalbases_)
769 if (!base->segment_is_complete(segment_id))
770 all_complete = false;
776 shared_ptr<data::DecodeSignal> Session::add_decode_signal()
778 shared_ptr<data::DecodeSignal> signal;
781 // Create the decode signal
782 signal = make_shared<data::DecodeSignal>(*this);
784 signalbases_.insert(signal);
786 // Add the decode signal to all views
787 for (shared_ptr<views::ViewBase>& view : views_)
788 view->add_decode_signal(signal);
789 } catch (runtime_error& e) {
790 remove_decode_signal(signal);
799 void Session::remove_decode_signal(shared_ptr<data::DecodeSignal> signal)
801 signalbases_.erase(signal);
803 for (shared_ptr<views::ViewBase>& view : views_)
804 view->remove_decode_signal(signal);
810 void Session::set_capture_state(capture_state state)
815 lock_guard<mutex> lock(sampling_mutex_);
816 changed = capture_state_ != state;
817 capture_state_ = state;
821 capture_state_changed(state);
824 void Session::update_signals()
827 signalbases_.clear();
829 for (shared_ptr<views::ViewBase>& view : views_) {
830 view->clear_signals();
832 view->clear_decode_signals();
838 lock_guard<recursive_mutex> lock(data_mutex_);
840 const shared_ptr<sigrok::Device> sr_dev = device_->device();
842 signalbases_.clear();
844 for (shared_ptr<views::ViewBase>& view : views_) {
845 view->clear_signals();
847 view->clear_decode_signals();
853 // Detect what data types we will receive
854 auto channels = sr_dev->channels();
855 unsigned int logic_channel_count = count_if(
856 channels.begin(), channels.end(),
857 [] (shared_ptr<Channel> channel) {
858 return channel->type() == sigrok::ChannelType::LOGIC; });
860 // Create data containers for the logic data segments
862 lock_guard<recursive_mutex> data_lock(data_mutex_);
864 if (logic_channel_count == 0) {
866 } else if (!logic_data_ ||
867 logic_data_->num_channels() != logic_channel_count) {
868 logic_data_.reset(new data::Logic(
869 logic_channel_count));
874 // Make the signals list
875 for (shared_ptr<views::ViewBase>& viewbase : views_) {
876 views::trace::View *trace_view =
877 qobject_cast<views::trace::View*>(viewbase.get());
880 unordered_set< shared_ptr<views::trace::Signal> >
881 prev_sigs(trace_view->signals());
882 trace_view->clear_signals();
884 for (auto channel : sr_dev->channels()) {
885 shared_ptr<data::SignalBase> signalbase;
886 shared_ptr<views::trace::Signal> signal;
888 // Find the channel in the old signals
889 const auto iter = find_if(
890 prev_sigs.cbegin(), prev_sigs.cend(),
891 [&](const shared_ptr<views::trace::Signal> &s) {
892 return s->base()->channel() == channel;
894 if (iter != prev_sigs.end()) {
895 // Copy the signal from the old set to the new
897 trace_view->add_signal(signal);
899 // Find the signalbase for this channel if possible
901 for (const shared_ptr<data::SignalBase>& b : signalbases_)
902 if (b->channel() == channel)
905 switch(channel->type()->id()) {
906 case SR_CHANNEL_LOGIC:
908 signalbase = make_shared<data::SignalBase>(channel,
909 data::SignalBase::LogicChannel);
910 signalbases_.insert(signalbase);
912 all_signal_data_.insert(logic_data_);
913 signalbase->set_data(logic_data_);
915 connect(this, SIGNAL(capture_state_changed(int)),
916 signalbase.get(), SLOT(on_capture_state_changed(int)));
919 signal = shared_ptr<views::trace::Signal>(
920 new views::trace::LogicSignal(*this,
921 device_, signalbase));
922 trace_view->add_signal(signal);
925 case SR_CHANNEL_ANALOG:
928 signalbase = make_shared<data::SignalBase>(channel,
929 data::SignalBase::AnalogChannel);
930 signalbases_.insert(signalbase);
932 shared_ptr<data::Analog> data(new data::Analog());
933 all_signal_data_.insert(data);
934 signalbase->set_data(data);
936 connect(this, SIGNAL(capture_state_changed(int)),
937 signalbase.get(), SLOT(on_capture_state_changed(int)));
940 signal = shared_ptr<views::trace::Signal>(
941 new views::trace::AnalogSignal(
943 trace_view->add_signal(signal);
959 shared_ptr<data::SignalBase> Session::signalbase_from_channel(
960 shared_ptr<sigrok::Channel> channel) const
962 for (shared_ptr<data::SignalBase> sig : signalbases_) {
964 if (sig->channel() == channel)
967 return shared_ptr<data::SignalBase>();
970 void Session::sample_thread_proc(function<void (const QString)> error_handler)
972 assert(error_handler);
975 pipeline_ = Pipeline::create();
977 source_ = ElementFactory::create_element("filesrc", "source");
978 sink_ = RefPtr<AppSink>::cast_dynamic(ElementFactory::create_element("appsink", "sink"));
980 pipeline_->add(source_)->add(sink_);
981 source_->link(sink_);
983 source_->set_property("location", Glib::ustring("/tmp/dummy_binary"));
985 sink_->set_property("emit-signals", TRUE);
986 sink_->signal_new_sample().connect(sigc::mem_fun(*this, &Session::on_gst_new_sample));
988 // Get the bus from the pipeline and add a bus watch to the default main context
989 RefPtr<Bus> bus = pipeline_->get_bus();
990 bus->add_watch(sigc::mem_fun(this, &Session::on_gst_bus_message));
992 // Start pipeline and Wait until it finished processing
993 pipeline_done_interrupt_ = false;
994 pipeline_->set_state(Gst::STATE_PLAYING);
996 unique_lock<mutex> pipeline_done_lock_(pipeline_done_mutex_);
997 pipeline_done_cond_.wait(pipeline_done_lock_);
999 // Let the pipeline free all resources
1000 pipeline_->set_state(Gst::STATE_NULL);
1007 cur_samplerate_ = device_->read_config<uint64_t>(ConfigKey::SAMPLERATE);
1008 } catch (Error& e) {
1009 cur_samplerate_ = 0;
1012 out_of_memory_ = false;
1015 lock_guard<recursive_mutex> lock(data_mutex_);
1016 cur_logic_segment_.reset();
1017 cur_analog_segments_.clear();
1019 highest_segment_id_ = -1;
1020 frame_began_ = false;
1024 } catch (Error& e) {
1025 error_handler(e.what());
1029 set_capture_state(device_->session()->trigger() ?
1030 AwaitingTrigger : Running);
1034 } catch (Error& e) {
1035 error_handler(e.what());
1036 set_capture_state(Stopped);
1038 } catch (QString& e) {
1040 set_capture_state(Stopped);
1044 set_capture_state(Stopped);
1046 // Confirm that SR_DF_END was received
1047 if (cur_logic_segment_)
1048 qDebug() << "WARNING: SR_DF_END was not received.";
1051 // Optimize memory usage
1052 free_unused_memory();
1054 // We now have unsaved data unless we just "captured" from a file
1055 shared_ptr<devices::File> file_device =
1056 dynamic_pointer_cast<devices::File>(device_);
1059 data_saved_ = false;
1062 error_handler(tr("Out of memory, acquisition stopped."));
1065 void Session::free_unused_memory()
1067 for (const shared_ptr<data::SignalData>& data : all_signal_data_) {
1068 const vector< shared_ptr<data::Segment> > segments = data->segments();
1070 for (const shared_ptr<data::Segment>& segment : segments)
1071 segment->free_unused_memory();
1075 void Session::signal_new_segment()
1077 int new_segment_id = 0;
1079 if ((cur_logic_segment_ != nullptr) || !cur_analog_segments_.empty()) {
1081 // Determine new frame/segment number, assuming that all
1082 // signals have the same number of frames/segments
1083 if (cur_logic_segment_) {
1084 new_segment_id = logic_data_->get_segment_count() - 1;
1086 shared_ptr<sigrok::Channel> any_channel =
1087 (*cur_analog_segments_.begin()).first;
1089 shared_ptr<data::SignalBase> base = signalbase_from_channel(any_channel);
1092 shared_ptr<data::Analog> data(base->analog_data());
1095 new_segment_id = data->get_segment_count() - 1;
1099 if (new_segment_id > highest_segment_id_) {
1100 highest_segment_id_ = new_segment_id;
1101 new_segment(highest_segment_id_);
1105 void Session::signal_segment_completed()
1109 for (const shared_ptr<data::SignalBase>& signalbase : signalbases_) {
1110 // We only care about analog and logic channels, not derived ones
1111 if (signalbase->type() == data::SignalBase::AnalogChannel) {
1112 segment_id = signalbase->analog_data()->get_segment_count() - 1;
1116 if (signalbase->type() == data::SignalBase::LogicChannel) {
1117 segment_id = signalbase->logic_data()->get_segment_count() - 1;
1122 if (segment_id >= 0)
1123 segment_completed(segment_id);
1127 bool Session::on_gst_bus_message(const Glib::RefPtr<Gst::Bus>& bus, const Glib::RefPtr<Gst::Message>& message)
1131 if ((message->get_source() == pipeline_) && \
1132 ((message->get_message_type() == Gst::MESSAGE_EOS)))
1133 pipeline_done_cond_.notify_one();
1135 // TODO Also evaluate MESSAGE_STREAM_STATUS to receive error notifications
1140 Gst::FlowReturn Session::on_gst_new_sample()
1142 RefPtr<Gst::Sample> sample = sink_->pull_sample();
1143 RefPtr<Gst::Buffer> buf = sample->get_buffer();
1145 for (uint32_t block_id = 0; block_id < buf->n_memory(); block_id++) {
1146 RefPtr<Gst::Memory> buf_mem = buf->get_memory(block_id);
1147 Gst::MapInfo mapinfo;
1148 buf_mem->map(mapinfo, Gst::MAP_READ);
1150 shared_ptr<sigrok::Packet> logic_packet =
1151 sr_context->create_logic_packet(mapinfo.get_data(), buf->get_size(), 1);
1154 feed_in_logic(dynamic_pointer_cast<sigrok::Logic>(logic_packet->payload()));
1155 } catch (bad_alloc&) {
1156 out_of_memory_ = true;
1158 buf_mem->unmap(mapinfo);
1159 return Gst::FLOW_ERROR;
1162 buf_mem->unmap(mapinfo);
1165 return Gst::FLOW_OK;
1169 void Session::feed_in_header()
1171 // Nothing to do here for now
1174 void Session::feed_in_meta(shared_ptr<Meta> meta)
1176 for (auto& entry : meta->config()) {
1177 switch (entry.first->id()) {
1178 case SR_CONF_SAMPLERATE:
1179 cur_samplerate_ = g_variant_get_uint64(entry.second.gobj());
1182 qDebug() << "Received meta data key" << entry.first->id() << ", ignoring.";
1190 void Session::feed_in_trigger()
1192 // The channel containing most samples should be most accurate
1193 uint64_t sample_count = 0;
1196 for (const shared_ptr<pv::data::SignalData>& d : all_signal_data_) {
1198 uint64_t temp_count = 0;
1200 const vector< shared_ptr<pv::data::Segment> > segments =
1202 for (const shared_ptr<pv::data::Segment> &s : segments)
1203 temp_count += s->get_sample_count();
1205 if (temp_count > sample_count)
1206 sample_count = temp_count;
1210 uint32_t segment_id = 0; // Default segment when no frames are used
1212 // If a frame began, we'd ideally be able to use the highest segment ID for
1213 // the trigger. However, as new segments are only created when logic or
1214 // analog data comes in, this doesn't work if the trigger appears right
1215 // after the beginning of the frame, before any sample data.
1216 // For this reason, we use highest segment ID + 1 if no sample data came in
1217 // yet and the highest segment ID otherwise.
1219 segment_id = highest_segment_id_;
1220 if (!cur_logic_segment_ && (cur_analog_segments_.size() == 0))
1224 // TODO Create timestamp from segment start time + segment's current sample count
1225 util::Timestamp timestamp = sample_count / get_samplerate();
1226 trigger_list_.emplace_back(segment_id, timestamp);
1227 trigger_event(segment_id, timestamp);
1230 void Session::feed_in_frame_begin()
1232 frame_began_ = true;
1235 void Session::feed_in_frame_end()
1241 lock_guard<recursive_mutex> lock(data_mutex_);
1243 if (cur_logic_segment_)
1244 cur_logic_segment_->set_complete();
1246 for (auto& entry : cur_analog_segments_) {
1247 shared_ptr<data::AnalogSegment> segment = entry.second;
1248 segment->set_complete();
1251 cur_logic_segment_.reset();
1252 cur_analog_segments_.clear();
1255 frame_began_ = false;
1257 signal_segment_completed();
1260 void Session::feed_in_logic(shared_ptr<Logic> logic)
1262 if (logic->data_length() == 0) {
1263 qDebug() << "WARNING: Received logic packet with 0 samples.";
1267 if (logic->unit_size() > 8)
1268 throw QString(tr("Can't handle more than 64 logic channels."));
1270 if (!cur_samplerate_)
1272 cur_samplerate_ = device_->read_config<uint64_t>(ConfigKey::SAMPLERATE);
1273 } catch (Error& e) {
1277 lock_guard<recursive_mutex> lock(data_mutex_);
1280 // The only reason logic_data_ would not have been created is
1281 // if it was not possible to determine the signals when the
1282 // device was created.
1286 if (!cur_logic_segment_) {
1287 // This could be the first packet after a trigger
1288 set_capture_state(Running);
1290 // Create a new data segment
1291 cur_logic_segment_ = make_shared<data::LogicSegment>(
1292 *logic_data_, logic_data_->get_segment_count(),
1293 logic->unit_size(), cur_samplerate_);
1294 logic_data_->push_segment(cur_logic_segment_);
1296 signal_new_segment();
1299 cur_logic_segment_->append_payload(logic);
1304 void Session::feed_in_analog(shared_ptr<Analog> analog)
1306 if (analog->num_samples() == 0) {
1307 qDebug() << "WARNING: Received analog packet with 0 samples.";
1311 if (!cur_samplerate_)
1313 cur_samplerate_ = device_->read_config<uint64_t>(ConfigKey::SAMPLERATE);
1314 } catch (Error& e) {
1318 lock_guard<recursive_mutex> lock(data_mutex_);
1320 const vector<shared_ptr<Channel>> channels = analog->channels();
1321 bool sweep_beginning = false;
1323 unique_ptr<float[]> data(new float[analog->num_samples() * channels.size()]);
1324 analog->get_data_as_float(data.get());
1326 if (signalbases_.empty())
1329 float *channel_data = data.get();
1330 for (auto& channel : channels) {
1331 shared_ptr<data::AnalogSegment> segment;
1333 // Try to get the segment of the channel
1334 const map< shared_ptr<Channel>, shared_ptr<data::AnalogSegment> >::
1335 iterator iter = cur_analog_segments_.find(channel);
1336 if (iter != cur_analog_segments_.end())
1337 segment = (*iter).second;
1339 // If no segment was found, this means we haven't
1340 // created one yet. i.e. this is the first packet
1341 // in the sweep containing this segment.
1342 sweep_beginning = true;
1344 // Find the analog data associated with the channel
1345 shared_ptr<data::SignalBase> base = signalbase_from_channel(channel);
1348 shared_ptr<data::Analog> data(base->analog_data());
1351 // Create a segment, keep it in the maps of channels
1352 segment = make_shared<data::AnalogSegment>(
1353 *data, data->get_segment_count(), cur_samplerate_);
1354 cur_analog_segments_[channel] = segment;
1356 // Push the segment into the analog data.
1357 data->push_segment(segment);
1359 signal_new_segment();
1364 // Append the samples in the segment
1365 segment->append_interleaved_samples(channel_data++, analog->num_samples(),
1369 if (sweep_beginning) {
1370 // This could be the first packet after a trigger
1371 set_capture_state(Running);
1377 void Session::data_feed_in(shared_ptr<sigrok::Device> device,
1378 shared_ptr<Packet> packet)
1383 assert(device == device_->device());
1386 switch (packet->type()->id()) {
1392 feed_in_meta(dynamic_pointer_cast<Meta>(packet->payload()));
1401 feed_in_logic(dynamic_pointer_cast<Logic>(packet->payload()));
1402 } catch (bad_alloc&) {
1403 out_of_memory_ = true;
1410 feed_in_analog(dynamic_pointer_cast<Analog>(packet->payload()));
1411 } catch (bad_alloc&) {
1412 out_of_memory_ = true;
1417 case SR_DF_FRAME_BEGIN:
1418 feed_in_frame_begin();
1421 case SR_DF_FRAME_END:
1422 feed_in_frame_end();
1426 // Strictly speaking, this is performed when a frame end marker was
1427 // received, so there's no point doing this again. However, not all
1428 // devices use frames, and for those devices, we need to do it here.
1430 lock_guard<recursive_mutex> lock(data_mutex_);
1432 if (cur_logic_segment_)
1433 cur_logic_segment_->set_complete();
1435 for (auto& entry : cur_analog_segments_) {
1436 shared_ptr<data::AnalogSegment> segment = entry.second;
1437 segment->set_complete();
1440 cur_logic_segment_.reset();
1441 cur_analog_segments_.clear();
1450 void Session::on_data_saved()