2 * This file is part of the PulseView project.
4 * Copyright (C) 2017 Soeren Apel <soeren@apelpie.net>
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/>.
25 #include "logicsegment.hpp"
26 #include "decodesignal.hpp"
27 #include "signaldata.hpp"
29 #include <pv/binding/decoder.hpp>
30 #include <pv/data/decode/decoder.hpp>
31 #include <pv/data/decode/row.hpp>
32 #include <pv/globalsettings.hpp>
33 #include <pv/session.hpp>
35 using std::lock_guard;
37 using std::make_shared;
39 using std::shared_ptr;
40 using std::unique_lock;
41 using pv::data::decode::Annotation;
42 using pv::data::decode::Decoder;
43 using pv::data::decode::Row;
48 const double DecodeSignal::DecodeMargin = 1.0;
49 const double DecodeSignal::DecodeThreshold = 0.2;
50 const int64_t DecodeSignal::DecodeChunkLength = 256 * 1024;
53 DecodeSignal::DecodeSignal(pv::Session &session) :
54 SignalBase(nullptr, SignalBase::DecodeChannel),
56 srd_session_(nullptr),
57 logic_mux_data_invalid_(false),
61 frame_complete_(false)
63 connect(&session_, SIGNAL(capture_state_changed(int)),
64 this, SLOT(on_capture_state_changed(int)));
67 DecodeSignal::~DecodeSignal()
72 const vector< shared_ptr<Decoder> >& DecodeSignal::decoder_stack() const
77 void DecodeSignal::stack_decoder(const srd_decoder *decoder)
80 const shared_ptr<Decoder> dec = make_shared<decode::Decoder>(decoder);
82 stack_.push_back(dec);
84 // Set name if this decoder is the first in the list
85 if (stack_.size() == 1)
86 set_name(QString::fromUtf8(decoder->name));
88 // Include the newly created decode channels in the channel lists
89 update_channel_list();
91 auto_assign_signals(dec);
92 commit_decoder_channels();
96 void DecodeSignal::remove_decoder(int index)
99 assert(index < (int)stack_.size());
101 // Find the decoder in the stack
102 auto iter = stack_.begin();
103 for (int i = 0; i < index; i++, iter++)
104 assert(iter != stack_.end());
106 // Delete the element
109 // Update channels and decoded data
110 update_channel_list();
114 bool DecodeSignal::toggle_decoder_visibility(int index)
116 auto iter = stack_.cbegin();
117 for (int i = 0; i < index; i++, iter++)
118 assert(iter != stack_.end());
120 shared_ptr<Decoder> dec = *iter;
122 // Toggle decoder visibility
125 state = !dec->shown();
132 void DecodeSignal::reset_decode()
134 if (decode_thread_.joinable()) {
135 decode_interrupt_ = true;
136 decode_input_cond_.notify_one();
137 decode_thread_.join();
140 if (logic_mux_thread_.joinable()) {
141 logic_mux_interrupt_ = true;
142 logic_mux_cond_.notify_one();
143 logic_mux_thread_.join();
148 frame_complete_ = false;
149 samples_decoded_ = 0;
150 error_message_ = QString();
155 logic_mux_data_.reset();
156 logic_mux_data_invalid_ = true;
159 void DecodeSignal::begin_decode()
161 if (decode_thread_.joinable()) {
162 decode_interrupt_ = true;
163 decode_input_cond_.notify_one();
164 decode_thread_.join();
167 if (logic_mux_thread_.joinable()) {
168 logic_mux_interrupt_ = true;
169 logic_mux_cond_.notify_one();
170 logic_mux_thread_.join();
175 if (stack_.size() == 0) {
176 error_message_ = tr("No decoders");
180 assert(channels_.size() > 0);
182 if (get_assigned_signal_count() == 0) {
183 error_message_ = tr("There are no channels assigned to this decoder");
187 // Make sure that all assigned channels still provide logic data
188 // (can happen when a converted signal was assigned but the
189 // conversion removed in the meanwhile)
190 for (data::DecodeChannel &ch : channels_)
191 if (ch.assigned_signal && !(ch.assigned_signal->logic_data() != nullptr))
192 ch.assigned_signal = nullptr;
194 // Check that all decoders have the required channels
195 for (const shared_ptr<decode::Decoder> &dec : stack_)
196 if (!dec->have_required_channels()) {
197 error_message_ = tr("One or more required channels "
198 "have not been specified");
202 // Add annotation classes
203 for (const shared_ptr<decode::Decoder> &dec : stack_) {
205 const srd_decoder *const decc = dec->decoder();
206 assert(dec->decoder());
208 // Add a row for the decoder if it doesn't have a row list
209 if (!decc->annotation_rows)
210 rows_[Row(decc)] = decode::RowData();
212 // Add the decoder rows
213 for (const GSList *l = decc->annotation_rows; l; l = l->next) {
214 const srd_decoder_annotation_row *const ann_row =
215 (srd_decoder_annotation_row *)l->data;
218 const Row row(decc, ann_row);
220 // Add a new empty row data object
221 rows_[row] = decode::RowData();
223 // Map out all the classes
224 for (const GSList *ll = ann_row->ann_classes;
226 class_rows_[make_pair(decc,
227 GPOINTER_TO_INT(ll->data))] = row;
231 // Free the logic data and its segment(s) if it needs to be updated
232 if (logic_mux_data_invalid_)
233 logic_mux_data_.reset();
235 if (!logic_mux_data_) {
236 const int64_t ch_count = get_assigned_signal_count();
237 const int64_t unit_size = (ch_count + 7) / 8;
238 logic_mux_data_ = make_shared<Logic>(ch_count);
239 segment_ = make_shared<LogicSegment>(*logic_mux_data_, unit_size, samplerate_);
240 logic_mux_data_->push_segment(segment_);
243 // Make sure the logic output data is complete and up-to-date
244 logic_mux_interrupt_ = false;
245 logic_mux_thread_ = std::thread(&DecodeSignal::logic_mux_proc, this);
247 // Decode the muxed logic data
248 decode_interrupt_ = false;
249 decode_thread_ = std::thread(&DecodeSignal::decode_proc, this);
251 // Receive notifications when new sample data is available
252 connect_input_notifiers();
255 QString DecodeSignal::error_message() const
257 lock_guard<mutex> lock(output_mutex_);
258 return error_message_;
261 const vector<data::DecodeChannel> DecodeSignal::get_channels() const
266 void DecodeSignal::auto_assign_signals(const shared_ptr<Decoder> dec)
268 bool new_assignment = false;
270 // Try to auto-select channels that don't have signals assigned yet
271 for (data::DecodeChannel &ch : channels_) {
272 // If a decoder is given, auto-assign only its channels
273 if (dec && (ch.decoder_ != dec))
276 if (ch.assigned_signal)
279 for (shared_ptr<data::SignalBase> s : session_.signalbases()) {
280 const QString ch_name = ch.name.toLower();
281 const QString s_name = s->name().toLower();
283 if (s->logic_data() &&
284 ((ch_name.contains(s_name)) || (s_name.contains(ch_name)))) {
285 ch.assigned_signal = s.get();
286 new_assignment = true;
291 if (new_assignment) {
292 logic_mux_data_invalid_ = true;
293 commit_decoder_channels();
298 void DecodeSignal::assign_signal(const uint16_t channel_id, const SignalBase *signal)
300 for (data::DecodeChannel &ch : channels_)
301 if (ch.id == channel_id) {
302 ch.assigned_signal = signal;
303 logic_mux_data_invalid_ = true;
306 commit_decoder_channels();
311 int DecodeSignal::get_assigned_signal_count() const
313 // Count all channels that have a signal assigned to them
314 return count_if(channels_.begin(), channels_.end(),
315 [](data::DecodeChannel ch) { return ch.assigned_signal; });
318 void DecodeSignal::set_initial_pin_state(const uint16_t channel_id, const int init_state)
320 for (data::DecodeChannel &ch : channels_)
321 if (ch.id == channel_id)
322 ch.initial_pin_state = init_state;
329 double DecodeSignal::samplerate() const
334 const pv::util::Timestamp& DecodeSignal::start_time() const
339 int64_t DecodeSignal::get_working_sample_count() const
341 // The working sample count is the highest sample number for
342 // which all used signals have data available, so go through
343 // all channels and use the lowest overall sample count of the
346 // TODO Currently, we assume only a single segment exists
348 int64_t count = std::numeric_limits<int64_t>::max();
349 bool no_signals_assigned = true;
351 for (const data::DecodeChannel &ch : channels_)
352 if (ch.assigned_signal) {
353 no_signals_assigned = false;
355 const shared_ptr<Logic> logic_data = ch.assigned_signal->logic_data();
356 if (!logic_data || logic_data->logic_segments().empty())
359 const shared_ptr<LogicSegment> segment = logic_data->logic_segments().front();
360 count = min(count, (int64_t)segment->get_sample_count());
363 return (no_signals_assigned ? 0 : count);
366 int64_t DecodeSignal::get_decoded_sample_count() const
368 lock_guard<mutex> decode_lock(output_mutex_);
369 return samples_decoded_;
372 vector<Row> DecodeSignal::visible_rows() const
374 lock_guard<mutex> lock(output_mutex_);
378 for (const shared_ptr<decode::Decoder> &dec : stack_) {
383 const srd_decoder *const decc = dec->decoder();
384 assert(dec->decoder());
386 // Add a row for the decoder if it doesn't have a row list
387 if (!decc->annotation_rows)
388 rows.emplace_back(decc);
390 // Add the decoder rows
391 for (const GSList *l = decc->annotation_rows; l; l = l->next) {
392 const srd_decoder_annotation_row *const ann_row =
393 (srd_decoder_annotation_row *)l->data;
395 rows.emplace_back(decc, ann_row);
402 void DecodeSignal::get_annotation_subset(
403 vector<pv::data::decode::Annotation> &dest,
404 const decode::Row &row, uint64_t start_sample,
405 uint64_t end_sample) const
407 lock_guard<mutex> lock(output_mutex_);
409 const auto iter = rows_.find(row);
410 if (iter != rows_.end())
411 (*iter).second.get_annotation_subset(dest,
412 start_sample, end_sample);
415 void DecodeSignal::save_settings(QSettings &settings) const
417 SignalBase::save_settings(settings);
419 settings.setValue("decoders", (int)(stack_.size()));
421 // Save decoder stack
423 for (shared_ptr<decode::Decoder> decoder : stack_) {
424 settings.beginGroup("decoder" + QString::number(decoder_idx++));
426 settings.setValue("id", decoder->decoder()->id);
428 // Save decoder options
429 const map<string, GVariant*>& options = decoder->options();
431 settings.setValue("options", (int)options.size());
433 // Note: decode::Decoder::options() returns only the options
434 // that differ from the default. See binding::Decoder::getter()
436 for (auto option : options) {
437 settings.beginGroup("option" + QString::number(i));
438 settings.setValue("name", QString::fromStdString(option.first));
439 GlobalSettings::store_gvariant(settings, option.second);
447 // Save channel mapping
448 settings.setValue("channels", (int)channels_.size());
450 for (unsigned int channel_id = 0; channel_id < channels_.size(); channel_id++) {
451 auto channel = find_if(channels_.begin(), channels_.end(),
452 [&](data::DecodeChannel ch) { return ch.id == channel_id; });
454 if (channel == channels_.end()) {
455 qDebug() << "ERROR: Gap in channel index:" << channel_id;
459 settings.beginGroup("channel" + QString::number(channel_id));
461 settings.setValue("name", channel->name); // Useful for debugging
462 settings.setValue("initial_pin_state", channel->initial_pin_state);
464 if (channel->assigned_signal)
465 settings.setValue("assigned_signal_name", channel->assigned_signal->name());
471 void DecodeSignal::restore_settings(QSettings &settings)
473 SignalBase::restore_settings(settings);
475 // Restore decoder stack
476 GSList *dec_list = g_slist_copy((GSList*)srd_decoder_list());
478 int decoders = settings.value("decoders").toInt();
480 for (int decoder_idx = 0; decoder_idx < decoders; decoder_idx++) {
481 settings.beginGroup("decoder" + QString::number(decoder_idx));
483 QString id = settings.value("id").toString();
485 for (GSList *entry = dec_list; entry; entry = entry->next) {
486 const srd_decoder *dec = (srd_decoder*)entry->data;
490 if (QString::fromUtf8(dec->id) == id) {
491 shared_ptr<decode::Decoder> decoder =
492 make_shared<decode::Decoder>(dec);
494 stack_.push_back(decoder);
496 // Restore decoder options that differ from their default
497 int options = settings.value("options").toInt();
499 for (int i = 0; i < options; i++) {
500 settings.beginGroup("option" + QString::number(i));
501 QString name = settings.value("name").toString();
502 GVariant *value = GlobalSettings::restore_gvariant(settings);
503 decoder->set_option(name.toUtf8(), value);
507 // Include the newly created decode channels in the channel lists
508 update_channel_list();
509 commit_decoder_channels();
518 // Restore channel mapping
519 unsigned int channels = settings.value("channels").toInt();
521 const unordered_set< shared_ptr<data::SignalBase> > signalbases =
522 session_.signalbases();
524 for (unsigned int channel_id = 0; channel_id < channels; channel_id++) {
525 auto channel = find_if(channels_.begin(), channels_.end(),
526 [&](data::DecodeChannel ch) { return ch.id == channel_id; });
528 if (channel == channels_.end()) {
529 qDebug() << "ERROR: Non-existant channel index:" << channel_id;
533 settings.beginGroup("channel" + QString::number(channel_id));
535 QString assigned_signal_name = settings.value("assigned_signal_name").toString();
537 for (shared_ptr<data::SignalBase> signal : signalbases)
538 if (signal->name() == assigned_signal_name)
539 channel->assigned_signal = signal.get();
541 channel->initial_pin_state = settings.value("initial_pin_state").toInt();
549 void DecodeSignal::update_channel_list()
551 vector<data::DecodeChannel> prev_channels = channels_;
556 // Copy existing entries, create new as needed
557 for (shared_ptr<Decoder> decoder : stack_) {
558 const srd_decoder* srd_d = decoder->decoder();
561 // Mandatory channels
562 for (l = srd_d->channels; l; l = l->next) {
563 const struct srd_channel *const pdch = (struct srd_channel *)l->data;
564 bool ch_added = false;
566 // Copy but update ID if this channel was in the list before
567 for (data::DecodeChannel &ch : prev_channels)
568 if (ch.pdch_ == pdch) {
570 channels_.push_back(ch);
576 // Create new entry without a mapped signal
577 data::DecodeChannel ch = {id++, false, nullptr,
578 QString::fromUtf8(pdch->name), QString::fromUtf8(pdch->desc),
579 SRD_INITIAL_PIN_SAME_AS_SAMPLE0, decoder, pdch};
580 channels_.push_back(ch);
585 for (l = srd_d->opt_channels; l; l = l->next) {
586 const struct srd_channel *const pdch = (struct srd_channel *)l->data;
587 bool ch_added = false;
589 // Copy but update ID if this channel was in the list before
590 for (data::DecodeChannel &ch : prev_channels)
591 if (ch.pdch_ == pdch) {
593 channels_.push_back(ch);
599 // Create new entry without a mapped signal
600 data::DecodeChannel ch = {id++, true, nullptr,
601 QString::fromUtf8(pdch->name), QString::fromUtf8(pdch->desc),
602 SRD_INITIAL_PIN_SAME_AS_SAMPLE0, decoder, pdch};
603 channels_.push_back(ch);
608 // Invalidate the logic output data if the channel assignment changed
609 if (prev_channels.size() != channels_.size()) {
610 // The number of channels changed, there's definitely a difference
611 logic_mux_data_invalid_ = true;
613 // Same number but assignment may still differ, so compare all channels
614 for (size_t i = 0; i < channels_.size(); i++) {
615 const data::DecodeChannel &p_ch = prev_channels[i];
616 const data::DecodeChannel &ch = channels_[i];
618 if ((p_ch.pdch_ != ch.pdch_) ||
619 (p_ch.assigned_signal != ch.assigned_signal)) {
620 logic_mux_data_invalid_ = true;
630 void DecodeSignal::commit_decoder_channels()
632 // Submit channel list to every decoder, containing only the relevant channels
633 for (shared_ptr<decode::Decoder> dec : stack_) {
634 vector<data::DecodeChannel*> channel_list;
636 for (data::DecodeChannel &ch : channels_)
637 if (ch.decoder_ == dec)
638 channel_list.push_back(&ch);
640 dec->set_channels(channel_list);
644 void DecodeSignal::mux_logic_samples(const int64_t start, const int64_t end)
646 // Enforce end to be greater than start
650 // Fetch all segments and their data
651 // TODO Currently, we assume only a single segment exists
652 vector<shared_ptr<LogicSegment> > segments;
653 vector<const uint8_t*> signal_data;
654 vector<uint8_t> signal_in_bytepos;
655 vector<uint8_t> signal_in_bitpos;
657 for (data::DecodeChannel &ch : channels_)
658 if (ch.assigned_signal) {
659 const shared_ptr<Logic> logic_data = ch.assigned_signal->logic_data();
660 const shared_ptr<LogicSegment> segment = logic_data->logic_segments().front();
661 segments.push_back(segment);
663 uint8_t* data = new uint8_t[(end - start) * segment->unit_size()];
664 segment->get_samples(start, end, data);
665 signal_data.push_back(data);
667 const int bitpos = ch.assigned_signal->logic_bit_index();
668 signal_in_bytepos.push_back(bitpos / 8);
669 signal_in_bitpos.push_back(bitpos % 8);
672 // Perform the muxing of signal data into the output data
673 uint8_t* output = new uint8_t[(end - start) * segment_->unit_size()];
674 unsigned int signal_count = signal_data.size();
676 for (int64_t sample_cnt = 0; sample_cnt < (end - start); sample_cnt++) {
680 const int out_sample_pos = sample_cnt * segment_->unit_size();
681 for (unsigned int i = 0; i < segment_->unit_size(); i++)
682 output[out_sample_pos + i] = 0;
684 for (unsigned int i = 0; i < signal_count; i++) {
685 const int in_sample_pos = sample_cnt * segments[i]->unit_size();
686 const uint8_t in_sample = 1 &
687 ((signal_data[i][in_sample_pos + signal_in_bytepos[i]]) >> (signal_in_bitpos[i]));
689 const uint8_t out_sample = output[out_sample_pos + bytepos];
691 output[out_sample_pos + bytepos] = out_sample | (in_sample << bitpos);
701 segment_->append_payload(output, (end - start) * segment_->unit_size());
704 for (const uint8_t* data : signal_data)
708 void DecodeSignal::logic_mux_proc()
711 const uint64_t input_sample_count = get_working_sample_count();
712 const uint64_t output_sample_count = segment_->get_sample_count();
714 const uint64_t samples_to_process =
715 (input_sample_count > output_sample_count) ?
716 (input_sample_count - output_sample_count) : 0;
718 // Process the samples if necessary...
719 if (samples_to_process > 0) {
720 const uint64_t unit_size = segment_->unit_size();
721 const uint64_t chunk_sample_count = DecodeChunkLength / unit_size;
723 uint64_t processed_samples = 0;
725 const uint64_t start_sample = output_sample_count + processed_samples;
726 const uint64_t sample_count =
727 min(samples_to_process - processed_samples, chunk_sample_count);
729 mux_logic_samples(start_sample, start_sample + sample_count);
730 processed_samples += sample_count;
732 // ...and process the newly muxed logic data
733 decode_input_cond_.notify_one();
734 } while (processed_samples < samples_to_process);
737 if (samples_to_process == 0) {
738 // Wait for more input
739 unique_lock<mutex> logic_mux_lock(logic_mux_mutex_);
740 logic_mux_cond_.wait(logic_mux_lock);
742 } while (!logic_mux_interrupt_);
744 // No more input data and session is stopped, let the decode thread
745 // process any pending data, terminate and release the global SRD mutex
746 // in order to let other decoders run
747 decode_input_cond_.notify_one();
750 void DecodeSignal::query_input_metadata()
752 // Update the samplerate and start time because we cannot start
753 // the libsrd session without the current samplerate
755 // TODO Currently we assume all channels have the same sample rate
757 bool samplerate_valid = false;
758 data::DecodeChannel *any_channel;
759 shared_ptr<Logic> logic_data;
762 any_channel = &(*find_if(channels_.begin(), channels_.end(),
763 [](data::DecodeChannel ch) { return ch.assigned_signal; }));
765 logic_data = any_channel->assigned_signal->logic_data();
768 // Wait until input data is available or an interrupt was requested
769 unique_lock<mutex> input_wait_lock(input_mutex_);
770 decode_input_cond_.wait(input_wait_lock);
772 } while (!logic_data && !decode_interrupt_);
774 if (decode_interrupt_)
778 if (!logic_data->logic_segments().empty()) {
779 shared_ptr<LogicSegment> first_segment =
780 any_channel->assigned_signal->logic_data()->logic_segments().front();
781 start_time_ = first_segment->start_time();
782 samplerate_ = first_segment->samplerate();
784 samplerate_valid = true;
787 if (!samplerate_valid) {
788 // Wait until input data is available or an interrupt was requested
789 unique_lock<mutex> input_wait_lock(input_mutex_);
790 decode_input_cond_.wait(input_wait_lock);
792 } while (!samplerate_valid && !decode_interrupt_);
795 void DecodeSignal::decode_data(
796 const int64_t abs_start_samplenum, const int64_t sample_count)
798 const int64_t unit_size = segment_->unit_size();
799 const int64_t chunk_sample_count = DecodeChunkLength / unit_size;
801 for (int64_t i = abs_start_samplenum;
802 !decode_interrupt_ && (i < (abs_start_samplenum + sample_count));
803 i += chunk_sample_count) {
805 const int64_t chunk_end = min(i + chunk_sample_count,
806 abs_start_samplenum + sample_count);
808 int64_t data_size = (chunk_end - i) * unit_size;
809 uint8_t* chunk = new uint8_t[data_size];
810 segment_->get_samples(i, chunk_end, chunk);
812 if (srd_session_send(srd_session_, i, chunk_end, chunk,
813 data_size, unit_size) != SRD_OK) {
814 error_message_ = tr("Decoder reported an error");
822 lock_guard<mutex> lock(output_mutex_);
823 samples_decoded_ = chunk_end;
826 // Notify the frontend that we processed some data and
827 // possibly have new annotations as well
832 void DecodeSignal::decode_proc()
834 query_input_metadata();
836 if (decode_interrupt_)
841 uint64_t sample_count;
842 uint64_t abs_start_samplenum = 0;
844 // Keep processing new samples until we exhaust the input data
846 lock_guard<mutex> input_lock(input_mutex_);
847 sample_count = segment_->get_sample_count() - abs_start_samplenum;
849 if (sample_count > 0) {
850 decode_data(abs_start_samplenum, sample_count);
851 abs_start_samplenum += sample_count;
853 } while (error_message_.isEmpty() && (sample_count > 0) && !decode_interrupt_);
855 if (error_message_.isEmpty() && !decode_interrupt_) {
856 if (sample_count == 0)
859 // Wait for new input data or an interrupt was requested
860 unique_lock<mutex> input_wait_lock(input_mutex_);
861 decode_input_cond_.wait(input_wait_lock);
863 } while (error_message_.isEmpty() && !decode_interrupt_);
866 void DecodeSignal::start_srd_session()
871 // Create the session
872 srd_session_new(&srd_session_);
873 assert(srd_session_);
875 // Create the decoders
876 srd_decoder_inst *prev_di = nullptr;
877 for (const shared_ptr<decode::Decoder> &dec : stack_) {
878 srd_decoder_inst *const di = dec->create_decoder_inst(srd_session_);
881 error_message_ = tr("Failed to create decoder instance");
882 srd_session_destroy(srd_session_);
887 srd_inst_stack(srd_session_, prev_di, di);
893 srd_session_metadata_set(srd_session_, SRD_CONF_SAMPLERATE,
894 g_variant_new_uint64(samplerate_));
896 srd_pd_output_callback_add(srd_session_, SRD_OUTPUT_ANN,
897 DecodeSignal::annotation_callback, this);
899 srd_session_start(srd_session_);
902 void DecodeSignal::stop_srd_session()
905 // Destroy the session
906 srd_session_destroy(srd_session_);
907 srd_session_ = nullptr;
911 void DecodeSignal::connect_input_notifiers()
913 // Disconnect the notification slot from the previous set of signals
914 disconnect(this, SLOT(on_data_cleared()));
915 disconnect(this, SLOT(on_data_received()));
917 // Connect the currently used signals to our slot
918 for (data::DecodeChannel &ch : channels_) {
919 if (!ch.assigned_signal)
922 const data::SignalBase *signal = ch.assigned_signal;
923 connect(signal, SIGNAL(samples_cleared()),
924 this, SLOT(on_data_cleared()));
925 connect(signal, SIGNAL(samples_added(QObject*, uint64_t, uint64_t)),
926 this, SLOT(on_data_received()));
930 void DecodeSignal::annotation_callback(srd_proto_data *pdata, void *decode_signal)
933 assert(decode_signal);
935 DecodeSignal *const ds = (DecodeSignal*)decode_signal;
938 lock_guard<mutex> lock(ds->output_mutex_);
940 const decode::Annotation a(pdata);
944 assert(pdata->pdo->di);
945 const srd_decoder *const decc = pdata->pdo->di->decoder;
948 auto row_iter = ds->rows_.end();
950 // Try looking up the sub-row of this class
951 const auto r = ds->class_rows_.find(make_pair(decc, a.format()));
952 if (r != ds->class_rows_.end())
953 row_iter = ds->rows_.find((*r).second);
955 // Failing that, use the decoder as a key
956 row_iter = ds->rows_.find(Row(decc));
959 assert(row_iter != ds->rows_.end());
960 if (row_iter == ds->rows_.end()) {
961 qDebug() << "Unexpected annotation: decoder = " << decc <<
962 ", format = " << a.format();
967 // Add the annotation
968 (*row_iter).second.push_annotation(a);
971 void DecodeSignal::on_capture_state_changed(int state)
973 // If a new acquisition was started, we need to start decoding from scratch
974 if (state == Session::Running)
978 void DecodeSignal::on_data_cleared()
983 void DecodeSignal::on_data_received()
985 if (!logic_mux_thread_.joinable())
988 logic_mux_cond_.notify_one();