]> sigrok.org Git - pulseview.git/commitdiff
Finalize segment decoding
authorSoeren Apel <redacted>
Tue, 19 Dec 2017 19:20:57 +0000 (20:20 +0100)
committerSoeren Apel <redacted>
Fri, 5 Jan 2018 21:50:21 +0000 (22:50 +0100)
pv/data/decodesignal.cpp
pv/data/decodesignal.hpp
pv/views/trace/view.cpp

index 5fd6d2098cc122a2c51f5169c89a97bdff0f83dd..c0dbb20d8c9aca5f86921459d650ae52b53b906a 100644 (file)
@@ -56,8 +56,7 @@ DecodeSignal::DecodeSignal(pv::Session &session) :
        session_(session),
        srd_session_(nullptr),
        logic_mux_data_invalid_(false),
-       current_segment_id_(0),
-       current_segment_(nullptr)
+       current_segment_id_(0)
 {
        connect(&session_, SIGNAL(capture_state_changed(int)),
                this, SLOT(on_capture_state_changed(int)));
@@ -145,8 +144,7 @@ void DecodeSignal::reset_decode()
        stop_srd_session();
 
        class_rows_.clear();
-       currently_processed_segment_ = 0;
-       current_segment_ = nullptr;
+       current_segment_id_ = 0;
        segments_.clear();
 
        logic_mux_data_.reset();
@@ -233,15 +231,12 @@ void DecodeSignal::begin_decode()
        // Receive notifications when new sample data is available
        connect_input_notifiers();
 
-       const uint32_t segment_count = get_input_segment_count();
-
-       if (segment_count == 0) {
+       if (get_input_segment_count() == 0) {
                error_message_ = tr("No input data");
                return;
        }
 
-       for (uint32_t i = 0; i < segment_count; i++)
-               create_new_segment();
+       create_segments();
 
        // Make sure the logic output data is complete and up-to-date
        logic_mux_interrupt_ = false;
@@ -331,12 +326,8 @@ double DecodeSignal::samplerate() const
        double result = 0;
 
        // TODO For now, we simply return the first samplerate that we have
-       try {
-               const DecodeSegment *segment = &(segments_.at(0));
-               result = segment->samplerate;
-       } catch (out_of_range) {
-               // Do nothing
-       }
+       if (segments_.size() > 0)
+               result = segments_.front().samplerate;
 
        return result;
 }
@@ -346,37 +337,12 @@ const pv::util::Timestamp DecodeSignal::start_time() const
        pv::util::Timestamp result;
 
        // TODO For now, we simply return the first start time that we have
-       try {
-               const DecodeSegment *segment = &(segments_.at(0));
-               result = segment->start_time;
-       } catch (out_of_range) {
-               // Do nothing
-       }
+       if (segments_.size() > 0)
+               result = segments_.front().start_time;
 
        return result;
 }
 
-uint32_t DecodeSignal::get_input_segment_count() const
-{
-       uint64_t count = std::numeric_limits<uint64_t>::max();
-       bool no_signals_assigned = true;
-
-       for (const data::DecodeChannel &ch : channels_)
-               if (ch.assigned_signal) {
-                       no_signals_assigned = false;
-
-                       const shared_ptr<Logic> logic_data = ch.assigned_signal->logic_data();
-                       if (!logic_data || logic_data->logic_segments().empty())
-                               return 0;
-
-                       // Find the min value of all segment counts
-                       if ((uint64_t)(logic_data->logic_segments().size()) < count)
-                               count = logic_data->logic_segments().size();
-               }
-
-       return (no_signals_assigned ? 0 : count);
-}
-
 int64_t DecodeSignal::get_working_sample_count(uint32_t segment_id) const
 {
        // The working sample count is the highest sample number for
@@ -609,6 +575,49 @@ void DecodeSignal::restore_settings(QSettings &settings)
        begin_decode();
 }
 
+uint32_t DecodeSignal::get_input_segment_count() const
+{
+       uint64_t count = std::numeric_limits<uint64_t>::max();
+       bool no_signals_assigned = true;
+
+       for (const data::DecodeChannel &ch : channels_)
+               if (ch.assigned_signal) {
+                       no_signals_assigned = false;
+
+                       const shared_ptr<Logic> logic_data = ch.assigned_signal->logic_data();
+                       if (!logic_data || logic_data->logic_segments().empty())
+                               return 0;
+
+                       // Find the min value of all segment counts
+                       if ((uint64_t)(logic_data->logic_segments().size()) < count)
+                               count = logic_data->logic_segments().size();
+               }
+
+       return (no_signals_assigned ? 0 : count);
+}
+
+uint32_t DecodeSignal::get_input_samplerate(uint32_t segment_id) const
+{
+       double samplerate = 0;
+
+       for (const data::DecodeChannel &ch : channels_)
+               if (ch.assigned_signal) {
+                       const shared_ptr<Logic> logic_data = ch.assigned_signal->logic_data();
+                       if (!logic_data || logic_data->logic_segments().empty())
+                               continue;
+
+                       try {
+                               const shared_ptr<LogicSegment> segment = logic_data->logic_segments().at(segment_id);
+                               samplerate = segment->samplerate();
+                       } catch (out_of_range) {
+                               // Do nothing
+                       }
+                       break;
+               }
+
+       return samplerate;
+}
+
 void DecodeSignal::update_channel_list()
 {
        vector<data::DecodeChannel> prev_channels = channels_;
@@ -757,15 +766,15 @@ void DecodeSignal::mux_logic_samples(uint32_t segment_id, const int64_t start, c
        }
 
        // Perform the muxing of signal data into the output data
-       uint8_t* output = new uint8_t[(end - start) * logic_mux_segment_->unit_size()];
+       uint8_t* output = new uint8_t[(end - start) * output_segment->unit_size()];
        unsigned int signal_count = signal_data.size();
 
        for (int64_t sample_cnt = 0; sample_cnt < (end - start); sample_cnt++) {
                int bitpos = 0;
                uint8_t bytepos = 0;
 
-               const int out_sample_pos = sample_cnt * logic_mux_segment_->unit_size();
-               for (unsigned int i = 0; i < logic_mux_segment_->unit_size(); i++)
+               const int out_sample_pos = sample_cnt * output_segment->unit_size();
+               for (unsigned int i = 0; i < output_segment->unit_size(); i++)
                        output[out_sample_pos + i] = 0;
 
                for (unsigned int i = 0; i < signal_count; i++) {
@@ -785,7 +794,7 @@ void DecodeSignal::mux_logic_samples(uint32_t segment_id, const int64_t start, c
                }
        }
 
-       logic_mux_segment_->append_payload(output, (end - start) * logic_mux_segment_->unit_size());
+       output_segment->append_payload(output, (end - start) * output_segment->unit_size());
        delete[] output;
 
        for (const uint8_t* data : signal_data)
@@ -796,16 +805,16 @@ void DecodeSignal::logic_mux_proc()
 {
        uint32_t segment_id = 0;
 
-       try {
-               logic_mux_segment_ = logic_mux_data_->logic_segments().front();
-       } catch (out_of_range) {
-               qDebug() << "Muxer error for" << name() << ": no logic mux segments";
-               return;
-       }
+       assert(logic_mux_data_);
+
+       shared_ptr<LogicSegment> output_segment = logic_mux_data_->logic_segments().front();
+       assert(output_segment);
+
+       output_segment->set_samplerate(get_input_samplerate(0));
 
        do {
                const uint64_t input_sample_count = get_working_sample_count(segment_id);
-               const uint64_t output_sample_count = logic_mux_segment_->get_sample_count();
+               const uint64_t output_sample_count = output_segment->get_sample_count();
 
                const uint64_t samples_to_process =
                        (input_sample_count > output_sample_count) ?
@@ -813,7 +822,7 @@ void DecodeSignal::logic_mux_proc()
 
                // Process the samples if necessary...
                if (samples_to_process > 0) {
-                       const uint64_t unit_size = logic_mux_segment_->unit_size();
+                       const uint64_t unit_size = output_segment->unit_size();
                        const uint64_t chunk_sample_count = DecodeChunkLength / unit_size;
 
                        uint64_t processed_samples = 0;
@@ -838,7 +847,7 @@ void DecodeSignal::logic_mux_proc()
                                segment_id++;
 
                                try {
-                                       logic_mux_segment_ = logic_mux_data_->logic_segments().at(segment_id);
+                                       output_segment = logic_mux_data_->logic_segments().at(segment_id);
                                } catch (out_of_range) {
                                        qDebug() << "Muxer error for" << name() << ": no logic mux segment" \
                                                << segment_id << "in logic_mux_proc(), mux segments size is" \
@@ -846,6 +855,8 @@ void DecodeSignal::logic_mux_proc()
                                        return;
                                }
 
+                               output_segment->set_samplerate(get_input_samplerate(segment_id));
+
                        } else {
                                // All segments have been processed
                                logic_mux_data_invalid_ = false;
@@ -869,8 +880,6 @@ void DecodeSignal::query_input_metadata()
        data::DecodeChannel *any_channel;
        shared_ptr<Logic> logic_data;
 
-       assert(current_segment_);
-
        do {
                any_channel = &(*find_if(channels_.begin(), channels_.end(),
                        [](data::DecodeChannel ch) { return ch.assigned_signal; }));
@@ -892,9 +901,12 @@ void DecodeSignal::query_input_metadata()
                        shared_ptr<LogicSegment> first_segment =
                                any_channel->assigned_signal->logic_data()->logic_segments().front();
 
-                       current_segment_->start_time = first_segment->start_time();
-                       current_segment_->samplerate = first_segment->samplerate();
-                       if (current_segment_->samplerate > 0)
+                       // We only need valid metadata in the first decode segment
+                       // so that start_srd_session() can use it
+                       segments_.at(current_segment_id_).start_time = first_segment->start_time();
+                       segments_.at(current_segment_id_).samplerate = first_segment->samplerate();
+
+                       if (segments_.at(current_segment_id_).samplerate > 0)
                                samplerate_valid = true;
                }
 
@@ -907,11 +919,10 @@ void DecodeSignal::query_input_metadata()
 }
 
 void DecodeSignal::decode_data(
-       const int64_t abs_start_samplenum, const int64_t sample_count)
+       const int64_t abs_start_samplenum, const int64_t sample_count,
+       const shared_ptr<LogicSegment> input_segment)
 {
-       assert(current_segment_);
-
-       const int64_t unit_size = logic_mux_segment_->unit_size();
+       const int64_t unit_size = input_segment->unit_size();
        const int64_t chunk_sample_count = DecodeChunkLength / unit_size;
 
        for (int64_t i = abs_start_samplenum;
@@ -923,7 +934,7 @@ void DecodeSignal::decode_data(
 
                int64_t data_size = (chunk_end - i) * unit_size;
                uint8_t* chunk = new uint8_t[data_size];
-               logic_mux_segment_->get_samples(i, chunk_end, chunk);
+               input_segment->get_samples(i, chunk_end, chunk);
 
                if (srd_session_send(srd_session_, i, chunk_end, chunk,
                                data_size, unit_size) != SRD_OK) {
@@ -936,7 +947,7 @@ void DecodeSignal::decode_data(
 
                {
                        lock_guard<mutex> lock(output_mutex_);
-                       current_segment_->samples_decoded = chunk_end;
+                       segments_.at(current_segment_id_).samples_decoded = chunk_end;
                }
 
                // Notify the frontend that we processed some data and
@@ -954,27 +965,54 @@ void DecodeSignal::decode_proc()
 
        start_srd_session();
 
+       current_segment_id_ = 0;
+       shared_ptr<LogicSegment> input_segment = logic_mux_data_->logic_segments().front();
+
+       assert(input_segment);
+       segments_.at(current_segment_id_).samplerate = input_segment->samplerate();
+
        uint64_t sample_count;
        uint64_t abs_start_samplenum = 0;
        do {
                // Keep processing new samples until we exhaust the input data
                do {
                        lock_guard<mutex> input_lock(input_mutex_);
-                       sample_count = logic_mux_segment_->get_sample_count() - abs_start_samplenum;
+                       sample_count = input_segment->get_sample_count() - abs_start_samplenum;
 
                        if (sample_count > 0) {
-                               decode_data(abs_start_samplenum, sample_count);
+                               decode_data(abs_start_samplenum, sample_count, input_segment);
                                abs_start_samplenum += sample_count;
                        }
                } while (error_message_.isEmpty() && (sample_count > 0) && !decode_interrupt_);
 
-               if (error_message_.isEmpty() && !decode_interrupt_) {
-                       if (sample_count == 0)
+               if (error_message_.isEmpty() && !decode_interrupt_ && sample_count == 0) {
+                       if (current_segment_id_ < logic_mux_data_->logic_segments().size() - 1) {
+                               // Process next segment
+                               current_segment_id_++;
+
+                               try {
+                                       input_segment = logic_mux_data_->logic_segments().at(current_segment_id_);
+                               } catch (out_of_range) {
+                                       qDebug() << "Decode error for" << name() << ": no logic mux segment" \
+                                               << current_segment_id_ << "in decode_proc(), mux segments size is" \
+                                               << logic_mux_data_->logic_segments().size();
+                                       return;
+                               }
+                               abs_start_samplenum = 0;
+
+                               segments_.at(current_segment_id_).samplerate = input_segment->samplerate();
+
+                               // Reset decoder state
+                               stop_srd_session();
+                               start_srd_session();
+                       } else {
+                               // All segments have been processed
                                decode_finished();
 
-                       // Wait for new input data or an interrupt was requested
-                       unique_lock<mutex> input_wait_lock(input_mutex_);
-                       decode_input_cond_.wait(input_wait_lock);
+                               // Wait for new input data or an interrupt was requested
+                               unique_lock<mutex> input_wait_lock(input_mutex_);
+                               decode_input_cond_.wait(input_wait_lock);
+                       }
                }
        } while (error_message_.isEmpty() && !decode_interrupt_);
 }
@@ -984,8 +1022,6 @@ void DecodeSignal::start_srd_session()
        if (srd_session_)
                stop_srd_session();
 
-       assert(current_segment_);
-
        // Create the session
        srd_session_new(&srd_session_);
        assert(srd_session_);
@@ -1009,7 +1045,7 @@ void DecodeSignal::start_srd_session()
 
        // Start the session
        srd_session_metadata_set(srd_session_, SRD_CONF_SAMPLERATE,
-               g_variant_new_uint64(current_segment_->samplerate));
+               g_variant_new_uint64(segments_.at(current_segment_id_).samplerate));
 
        srd_pd_output_callback_add(srd_session_, SRD_OUTPUT_ANN,
                DecodeSignal::annotation_callback, this);
@@ -1045,45 +1081,44 @@ void DecodeSignal::connect_input_notifiers()
        }
 }
 
-void DecodeSignal::create_new_segment()
+void DecodeSignal::create_segments()
 {
-       // Create logic mux segment if we're recreating the muxed data
-       if (logic_mux_data_invalid_) {
-               const double samplerate =
-                       (current_segment_) ? current_segment_->samplerate : 0;
-
-               logic_mux_segment_ = make_shared<LogicSegment>(*logic_mux_data_,
-                       logic_mux_unit_size_, samplerate);
-               logic_mux_data_->push_segment(logic_mux_segment_);
+       // Make sure we have as many segments as we need
+       const uint32_t input_segment_count = get_input_segment_count();
+
+       for (uint32_t i = logic_mux_data_->logic_segments().size(); i < input_segment_count; i++) {
+               shared_ptr<LogicSegment> segment =
+                       make_shared<LogicSegment>(*logic_mux_data_, logic_mux_unit_size_, 0);
+               logic_mux_data_->push_segment(segment);
        }
 
-       // Create annotation segment
-       segments_.emplace_back(DecodeSegment());
-       current_segment_ = &(segments_.back());
+       for (uint32_t i = segments_.size(); i < input_segment_count; i++) {
+               // Create annotation segment
+               segments_.emplace_back(DecodeSegment());
 
-       // TODO Currently we assume there's only one sample rate
-       current_segment_->samplerate = segments_.front().samplerate;
+               // Add annotation classes
+               for (const shared_ptr<decode::Decoder> &dec : stack_) {
+                       assert(dec);
+                       const srd_decoder *const decc = dec->decoder();
+                       assert(dec->decoder());
 
-       // Add annotation classes
-       for (const shared_ptr<decode::Decoder> &dec : stack_) {
-               assert(dec);
-               const srd_decoder *const decc = dec->decoder();
-               assert(dec->decoder());
+                       // Add a row for the decoder if it doesn't have a row list
+                       if (!decc->annotation_rows)
+                               (segments_.back().annotation_rows)[Row(decc)] =
+                                       decode::RowData();
 
-               // Add a row for the decoder if it doesn't have a row list
-               if (!decc->annotation_rows)
-                       (current_segment_->annotation_rows)[Row(decc)] = decode::RowData();
+                       // Add the decoder rows
+                       for (const GSList *l = decc->annotation_rows; l; l = l->next) {
+                               const srd_decoder_annotation_row *const ann_row =
+                                       (srd_decoder_annotation_row *)l->data;
+                               assert(ann_row);
 
-               // Add the decoder rows
-               for (const GSList *l = decc->annotation_rows; l; l = l->next) {
-                       const srd_decoder_annotation_row *const ann_row =
-                               (srd_decoder_annotation_row *)l->data;
-                       assert(ann_row);
-
-                       const Row row(decc, ann_row);
+                               const Row row(decc, ann_row);
 
-                       // Add a new empty row data object
-                       (current_segment_->annotation_rows)[row] = decode::RowData();
+                               // Add a new empty row data object
+                               (segments_.back().annotation_rows)[row] =
+                                       decode::RowData();
+                       }
                }
        }
 }
@@ -1103,25 +1138,24 @@ void DecodeSignal::annotation_callback(srd_proto_data *pdata, void *decode_signa
        assert(pdata->pdo->di);
        const srd_decoder *const decc = pdata->pdo->di->decoder;
        assert(decc);
-       assert(ds->current_segment_);
 
        const srd_proto_data_annotation *const pda =
                (const srd_proto_data_annotation*)pdata->data;
        assert(pda);
 
-       auto row_iter = ds->current_segment_->annotation_rows.end();
+       auto row_iter = ds->segments_.at(ds->current_segment_id_).annotation_rows.end();
 
        // Try looking up the sub-row of this class
        const auto format = pda->ann_class;
        const auto r = ds->class_rows_.find(make_pair(decc, format));
        if (r != ds->class_rows_.end())
-               row_iter = ds->current_segment_->annotation_rows.find((*r).second);
+               row_iter = ds->segments_.at(ds->current_segment_id_).annotation_rows.find((*r).second);
        else {
                // Failing that, use the decoder as a key
-               row_iter = ds->current_segment_->annotation_rows.find(Row(decc));
+               row_iter = ds->segments_.at(ds->current_segment_id_).annotation_rows.find(Row(decc));
        }
 
-       if (row_iter == ds->current_segment_->annotation_rows.end()) {
+       if (row_iter == ds->segments_.at(ds->current_segment_id_).annotation_rows.end()) {
                qDebug() << "Unexpected annotation: decoder = " << decc <<
                        ", format = " << format;
                assert(false);
@@ -1148,6 +1182,8 @@ void DecodeSignal::on_data_cleared()
 
 void DecodeSignal::on_data_received()
 {
+       create_segments();
+
        if (!logic_mux_thread_.joinable())
                begin_decode();
        else
index 21d14b810d558d757f919dbc68932fbcc5dc6d6f..04497ec52ff766ee7acd49bf1b6ff21bf5277275 100644 (file)
@@ -113,8 +113,6 @@ public:
        double samplerate() const;
        const pv::util::Timestamp start_time() const;
 
-       uint32_t get_input_segment_count() const;
-
        /**
         * Returns the number of samples that can be worked on,
         * i.e. the number of samples where samples are available
@@ -139,6 +137,10 @@ public:
        virtual void restore_settings(QSettings &settings);
 
 private:
+       uint32_t get_input_segment_count() const;
+
+       uint32_t get_input_samplerate(uint32_t segment_id) const;
+
        void update_channel_list();
 
        void commit_decoder_channels();
@@ -149,7 +151,8 @@ private:
 
        void query_input_metadata();
 
-       void decode_data(const int64_t abs_start_samplenum, const int64_t sample_count);
+       void decode_data(const int64_t abs_start_samplenum, const int64_t sample_count,
+               const shared_ptr<LogicSegment> input_segment);
 
        void decode_proc();
 
@@ -158,7 +161,7 @@ private:
 
        void connect_input_notifiers();
 
-       void create_new_segment();
+       void create_segments();
 
        static void annotation_callback(srd_proto_data *pdata, void *decode_signal);
 
@@ -181,18 +184,14 @@ private:
        struct srd_session *srd_session_;
 
        shared_ptr<Logic> logic_mux_data_;
-       shared_ptr<LogicSegment> logic_mux_segment_;
        uint32_t logic_mux_unit_size_;
        bool logic_mux_data_invalid_;
 
-       uint32_t currently_processed_segment_;
-
        vector< shared_ptr<decode::Decoder> > stack_;
        map<pair<const srd_decoder*, int>, decode::Row> class_rows_;
 
        vector<DecodeSegment> segments_;
        uint32_t current_segment_id_;
-       DecodeSegment *current_segment_;
 
        mutable mutex input_mutex_, output_mutex_, logic_mux_mutex_;
        mutable condition_variable decode_input_cond_, logic_mux_cond_;
index 2bfe68c22468858d3bc24bd47034798dad78f607..f350459c500bdb9190d44fa0cad0e04a4e1200ad 100644 (file)
@@ -261,6 +261,7 @@ void View::add_signal(const shared_ptr<Signal> signal)
        signals_.insert(signal);
 
        signal->set_segment_display_mode(segment_display_mode_);
+       signal->set_current_segment(current_segment_);
 
        connect(signal->base().get(), SIGNAL(name_changed(const QString&)),
                this, SLOT(on_signal_name_changed()));
@@ -279,6 +280,7 @@ void View::add_decode_signal(shared_ptr<data::DecodeSignal> signal)
        decode_traces_.push_back(d);
 
        d->set_segment_display_mode(segment_display_mode_);
+       d->set_current_segment(current_segment_);
 
        connect(signal.get(), SIGNAL(name_changed(const QString&)),
                this, SLOT(on_signal_name_changed()));