]> sigrok.org Git - pulseview.git/blobdiff - pv/session.cpp
Session: Add error messages
[pulseview.git] / pv / session.cpp
index 4dcc2e8b7b77f5da1cfce26781e694d16f23eb7f..a9bb554efd08a34e14b3375955b0ee6679ae31ea 100644 (file)
@@ -352,8 +352,7 @@ void Session::select_device(shared_ptr<devices::Device> device)
                else
                        set_default_device();
        } catch (const QString &e) {
-               main_bar_->session_error(tr("Failed to Select Device"),
-                       tr("Failed to Select Device"));
+               main_bar_->session_error(tr("Failed to select device"), e);
        }
 }
 
@@ -401,6 +400,7 @@ void Session::set_device(shared_ptr<devices::Device> device)
                device_->open();
        } catch (const QString &e) {
                device_.reset();
+               main_bar_->session_error(tr("Failed to open device"), e);
        }
 
        if (device_) {
@@ -426,7 +426,7 @@ void Session::set_default_device()
        // Try and find the demo device and select that by default
        const auto iter = find_if(devices.begin(), devices.end(),
                [] (const shared_ptr<devices::HardwareDevice> &d) {
-                       return d->hardware_device()->driver()->name() == "demo";        });
+                       return d->hardware_device()->driver()->name() == "demo"; });
        set_device((iter == devices.end()) ? devices.front() : *iter);
 }
 
@@ -567,6 +567,8 @@ void Session::start_capture(function<void (const QString)> error_handler)
        for (const shared_ptr<data::SignalData> d : all_signal_data_)
                d->clear();
 
+       trigger_list_.clear();
+
        // Revert name back to default name (e.g. "Session 1") for real devices
        // as the (possibly saved) data is gone. File devices keep their name.
        shared_ptr<devices::HardwareDevice> hw_device =
@@ -677,11 +679,45 @@ double Session::get_samplerate() const
        return samplerate;
 }
 
+uint32_t Session::get_segment_count() const
+{
+       uint32_t value = 0;
+
+       // Find the highest number of segments
+       for (shared_ptr<data::SignalData> data : all_signal_data_)
+               if (data->get_segment_count() > value)
+                       value = data->get_segment_count();
+
+       return value;
+}
+
+vector<util::Timestamp> Session::get_triggers(uint32_t segment_id) const
+{
+       vector<util::Timestamp> result;
+
+       for (pair<uint32_t, util::Timestamp> entry : trigger_list_)
+               if (entry.first == segment_id)
+                       result.push_back(entry.second);
+
+       return result;
+}
+
 const unordered_set< shared_ptr<data::SignalBase> > Session::signalbases() const
 {
        return signalbases_;
 }
 
+bool Session::all_segments_complete(uint32_t segment_id) const
+{
+       bool all_complete = true;
+
+       for (shared_ptr<data::SignalBase> base : signalbases_)
+               if (!base->segment_is_complete(segment_id))
+                       all_complete = false;
+
+       return all_complete;
+}
+
 #ifdef ENABLE_DECODE
 shared_ptr<data::DecodeSignal> Session::add_decode_signal()
 {
@@ -888,6 +924,14 @@ void Session::sample_thread_proc(function<void (const QString)> error_handler)
 
        out_of_memory_ = false;
 
+       {
+               lock_guard<recursive_mutex> lock(data_mutex_);
+               cur_logic_segment_.reset();
+               cur_analog_segments_.clear();
+       }
+       highest_segment_id_ = -1;
+       frame_began_ = false;
+
        try {
                device_->start();
        } catch (Error e) {
@@ -939,9 +983,60 @@ void Session::free_unused_memory()
        }
 }
 
+void Session::signal_new_segment()
+{
+       int new_segment_id = 0;
+
+       if ((cur_logic_segment_ != nullptr) || !cur_analog_segments_.empty()) {
+
+               // Determine new frame/segment number, assuming that all
+               // signals have the same number of frames/segments
+               if (cur_logic_segment_) {
+                       new_segment_id = logic_data_->get_segment_count() - 1;
+               } else {
+                       shared_ptr<sigrok::Channel> any_channel =
+                               (*cur_analog_segments_.begin()).first;
+
+                       shared_ptr<data::SignalBase> base = signalbase_from_channel(any_channel);
+                       assert(base);
+
+                       shared_ptr<data::Analog> data(base->analog_data());
+                       assert(data);
+
+                       new_segment_id = data->get_segment_count() - 1;
+               }
+       }
+
+       if (new_segment_id > highest_segment_id_) {
+               highest_segment_id_ = new_segment_id;
+               new_segment(highest_segment_id_);
+       }
+}
+
+void Session::signal_segment_completed()
+{
+       int segment_id = 0;
+
+       for (shared_ptr<data::SignalBase> signalbase : signalbases_) {
+               // We only care about analog and logic channels, not derived ones
+               if (signalbase->type() == data::SignalBase::AnalogChannel) {
+                       segment_id = signalbase->analog_data()->get_segment_count() - 1;
+                       break;
+               }
+
+               if (signalbase->type() == data::SignalBase::LogicChannel) {
+                       segment_id = signalbase->logic_data()->get_segment_count() - 1;
+                       break;
+               }
+       }
+
+       if (segment_id >= 0)
+               segment_completed(segment_id);
+}
+
 void Session::feed_in_header()
 {
-       cur_samplerate_ = device_->read_config<uint64_t>(ConfigKey::SAMPLERATE);
+       // Nothing to do here for now
 }
 
 void Session::feed_in_meta(shared_ptr<Meta> meta)
@@ -985,17 +1080,50 @@ void Session::feed_in_trigger()
                }
        }
 
-       trigger_event(sample_count / get_samplerate());
+       // If no frame began then this is a trigger for a new segment
+       const uint32_t segment_id =
+               (frame_began_) ? highest_segment_id_ : (highest_segment_id_ + 1);
+
+       util::Timestamp timestamp = sample_count / get_samplerate();
+       trigger_list_.emplace_back(segment_id, timestamp);
+       trigger_event(segment_id, timestamp);
 }
 
 void Session::feed_in_frame_begin()
 {
-       if (cur_logic_segment_ || !cur_analog_segments_.empty())
-               frame_began();
+       frame_began_ = true;
+}
+
+void Session::feed_in_frame_end()
+{
+       if (!frame_began_)
+               return;
+
+       {
+               lock_guard<recursive_mutex> lock(data_mutex_);
+
+               if (cur_logic_segment_)
+                       cur_logic_segment_->set_complete();
+
+               for (auto entry : cur_analog_segments_) {
+                       shared_ptr<data::AnalogSegment> segment = entry.second;
+                       segment->set_complete();
+               }
+
+               cur_logic_segment_.reset();
+               cur_analog_segments_.clear();
+       }
+
+       frame_began_ = false;
+
+       signal_segment_completed();
 }
 
 void Session::feed_in_logic(shared_ptr<Logic> logic)
 {
+       if (!cur_samplerate_)
+               cur_samplerate_ = device_->read_config<uint64_t>(ConfigKey::SAMPLERATE);
+
        lock_guard<recursive_mutex> lock(data_mutex_);
 
        if (!logic_data_) {
@@ -1011,14 +1139,11 @@ void Session::feed_in_logic(shared_ptr<Logic> logic)
 
                // Create a new data segment
                cur_logic_segment_ = make_shared<data::LogicSegment>(
-                       *logic_data_, logic->unit_size(), cur_samplerate_);
+                       *logic_data_, logic_data_->get_segment_count(),
+                       logic->unit_size(), cur_samplerate_);
                logic_data_->push_segment(cur_logic_segment_);
 
-               // @todo Putting this here means that only listeners querying
-               // for logic will be notified. Currently the only user of
-               // frame_began is DecoderStack, but in future we need to signal
-               // this after both analog and logic sweeps have begun.
-               frame_began();
+               signal_new_segment();
        }
 
        cur_logic_segment_->append_payload(logic);
@@ -1028,6 +1153,9 @@ void Session::feed_in_logic(shared_ptr<Logic> logic)
 
 void Session::feed_in_analog(shared_ptr<Analog> analog)
 {
+       if (!cur_samplerate_)
+               cur_samplerate_ = device_->read_config<uint64_t>(ConfigKey::SAMPLERATE);
+
        lock_guard<recursive_mutex> lock(data_mutex_);
 
        const vector<shared_ptr<Channel>> channels = analog->channels();
@@ -1035,7 +1163,7 @@ void Session::feed_in_analog(shared_ptr<Analog> analog)
        const size_t sample_count = analog->num_samples() / channel_count;
        bool sweep_beginning = false;
 
-       unique_ptr<float> data(new float[analog->num_samples()]);
+       unique_ptr<float[]> data(new float[analog->num_samples()]);
        analog->get_data_as_float(data.get());
 
        if (signalbases_.empty())
@@ -1065,11 +1193,13 @@ void Session::feed_in_analog(shared_ptr<Analog> analog)
 
                        // Create a segment, keep it in the maps of channels
                        segment = make_shared<data::AnalogSegment>(
-                               *data, cur_samplerate_);
+                               *data, data->get_segment_count(), cur_samplerate_);
                        cur_analog_segments_[channel] = segment;
 
                        // Push the segment into the analog data.
                        data->push_segment(segment);
+
+                       signal_new_segment();
                }
 
                assert(segment);
@@ -1090,8 +1220,6 @@ void Session::feed_in_analog(shared_ptr<Analog> analog)
 void Session::data_feed_in(shared_ptr<sigrok::Device> device,
        shared_ptr<Packet> packet)
 {
-       static bool frame_began = false;
-
        (void)device;
 
        assert(device);
@@ -1111,11 +1239,6 @@ void Session::data_feed_in(shared_ptr<sigrok::Device> device,
                feed_in_trigger();
                break;
 
-       case SR_DF_FRAME_BEGIN:
-               feed_in_frame_begin();
-               frame_began = true;
-               break;
-
        case SR_DF_LOGIC:
                try {
                        feed_in_logic(dynamic_pointer_cast<Logic>(packet->payload()));
@@ -1134,20 +1257,25 @@ void Session::data_feed_in(shared_ptr<sigrok::Device> device,
                }
                break;
 
+       case SR_DF_FRAME_BEGIN:
+               feed_in_frame_begin();
+               break;
+
        case SR_DF_FRAME_END:
+               feed_in_frame_end();
+               break;
+
        case SR_DF_END:
-       {
+               // Strictly speaking, this is performed when a frame end marker was
+               // received, so there's no point doing this again. However, not all
+               // devices use frames, and for those devices, we need to do it here.
                {
                        lock_guard<recursive_mutex> lock(data_mutex_);
                        cur_logic_segment_.reset();
                        cur_analog_segments_.clear();
                }
-               if (frame_began) {
-                       frame_began = false;
-                       frame_ended();
-               }
                break;
-       }
+
        default:
                break;
        }