pv/data/decodesignal.cpp

   1 /*
   2  * This file is part of the PulseView project.
   3  *
   4  * Copyright (C) 2017 Soeren Apel <soeren@apelpie.net>
   5  *
   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.
  10  *
  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.
  15  *
  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/>.
  18  */
  19
  20 #include <cstring>
  21 #include <forward_list>
  22 #include <limits>
  23
  24 #include <QDebug>
  25
  26 #include "logic.hpp"
  27 #include "logicsegment.hpp"
  28 #include "decodesignal.hpp"
  29 #include "signaldata.hpp"
  30
  31 #include <pv/binding/decoder.hpp>
  32 #include <pv/data/decode/decoder.hpp>
  33 #include <pv/data/decode/row.hpp>
  34 #include <pv/globalsettings.hpp>
  35 #include <pv/session.hpp>
  36
  37 using std::forward_list;
  38 using std::lock_guard;
  39 using std::make_pair;
  40 using std::make_shared;
  41 using std::min;
  42 using std::out_of_range;
  43 using std::shared_ptr;
  44 using std::unique_lock;
  45 using pv::data::decode::Annotation;
  46 using pv::data::decode::Decoder;
  47 using pv::data::decode::Row;
  48
  49 namespace pv {
  50 namespace data {
  51
  52 const double DecodeSignal::DecodeMargin = 1.0;
  53 const double DecodeSignal::DecodeThreshold = 0.2;
  54 const int64_t DecodeSignal::DecodeChunkLength = 256 * 1024;
  55
  56
  57 DecodeSignal::DecodeSignal(pv::Session &session) :
  58         SignalBase(nullptr, SignalBase::DecodeChannel),
  59         session_(session),
  60         srd_session_(nullptr),
  61         logic_mux_data_invalid_(false),
  62         stack_config_changed_(true),
  63         current_segment_id_(0)
  64 {
  65         connect(&session_, SIGNAL(capture_state_changed(int)),
  66                 this, SLOT(on_capture_state_changed(int)));
  67 }
  68
  69 DecodeSignal::~DecodeSignal()
  70 {
  71         reset_decode(true);
  72 }
  73
  74 const vector< shared_ptr<Decoder> >& DecodeSignal::decoder_stack() const
  75 {
  76         return stack_;
  77 }
  78
  79 void DecodeSignal::stack_decoder(const srd_decoder *decoder)
  80 {
  81         assert(decoder);
  82
  83         // Set name if this decoder is the first in the list or the name is unchanged
  84         const srd_decoder* prev_dec =
  85                 stack_.empty() ? nullptr : stack_.back()->decoder();
  86         const QString prev_dec_name =
  87                 prev_dec ? QString::fromUtf8(prev_dec->name) : QString();
  88
  89         if ((stack_.empty()) || ((stack_.size() > 0) && (name() == prev_dec_name)))
  90                 set_name(QString::fromUtf8(decoder->name));
  91
  92         const shared_ptr<Decoder> dec = make_shared<decode::Decoder>(decoder);
  93         stack_.push_back(dec);
  94
  95         // Include the newly created decode channels in the channel lists
  96         update_channel_list();
  97
  98         stack_config_changed_ = true;
  99         auto_assign_signals(dec);
 100         commit_decoder_channels();
 101         begin_decode();
 102 }
 103
 104 void DecodeSignal::remove_decoder(int index)
 105 {
 106         assert(index >= 0);
 107         assert(index < (int)stack_.size());
 108
 109         // Find the decoder in the stack
 110         auto iter = stack_.begin();
 111         for (int i = 0; i < index; i++, iter++)
 112                 assert(iter != stack_.end());
 113
 114         // Delete the element
 115         stack_.erase(iter);
 116
 117         // Update channels and decoded data
 118         stack_config_changed_ = true;
 119         update_channel_list();
 120         begin_decode();
 121 }
 122
 123 bool DecodeSignal::toggle_decoder_visibility(int index)
 124 {
 125         auto iter = stack_.cbegin();
 126         for (int i = 0; i < index; i++, iter++)
 127                 assert(iter != stack_.end());
 128
 129         shared_ptr<Decoder> dec = *iter;
 130
 131         // Toggle decoder visibility
 132         bool state = false;
 133         if (dec) {
 134                 state = !dec->shown();
 135                 dec->show(state);
 136         }
 137
 138         return state;
 139 }
 140
 141 void DecodeSignal::reset_decode(bool shutting_down)
 142 {
 143         if (stack_config_changed_ || shutting_down)
 144                 stop_srd_session();
 145         else
 146                 terminate_srd_session();
 147
 148         if (decode_thread_.joinable()) {
 149                 decode_interrupt_ = true;
 150                 decode_input_cond_.notify_one();
 151                 decode_thread_.join();
 152         }
 153
 154         if (logic_mux_thread_.joinable()) {
 155                 logic_mux_interrupt_ = true;
 156                 logic_mux_cond_.notify_one();
 157                 logic_mux_thread_.join();
 158         }
 159
 160         resume_decode();  // Make sure the decode thread isn't blocked by pausing
 161
 162         class_rows_.clear();
 163         current_segment_id_ = 0;
 164         segments_.clear();
 165
 166         logic_mux_data_.reset();
 167         logic_mux_data_invalid_ = true;
 168
 169         if (!error_message_.isEmpty()) {
 170                 error_message_ = QString();
 171                 // TODO Emulate noquote()
 172                 qDebug().nospace() << name() << ": Error cleared";
 173         }
 174
 175         decode_reset();
 176 }
 177
 178 void DecodeSignal::begin_decode()
 179 {
 180         if (decode_thread_.joinable()) {
 181                 decode_interrupt_ = true;
 182                 decode_input_cond_.notify_one();
 183                 decode_thread_.join();
 184         }
 185
 186         if (logic_mux_thread_.joinable()) {
 187                 logic_mux_interrupt_ = true;
 188                 logic_mux_cond_.notify_one();
 189                 logic_mux_thread_.join();
 190         }
 191
 192         reset_decode();
 193
 194         if (stack_.size() == 0) {
 195                 set_error_message(tr("No decoders"));
 196                 return;
 197         }
 198
 199         assert(channels_.size() > 0);
 200
 201         if (get_assigned_signal_count() == 0) {
 202                 set_error_message(tr("There are no channels assigned to this decoder"));
 203                 return;
 204         }
 205
 206         // Make sure that all assigned channels still provide logic data
 207         // (can happen when a converted signal was assigned but the
 208         // conversion removed in the meanwhile)
 209         for (data::DecodeChannel& ch : channels_)
 210                 if (ch.assigned_signal && !(ch.assigned_signal->logic_data() != nullptr))
 211                         ch.assigned_signal = nullptr;
 212
 213         // Check that all decoders have the required channels
 214         for (const shared_ptr<decode::Decoder>& dec : stack_)
 215                 if (!dec->have_required_channels()) {
 216                         set_error_message(tr("One or more required channels "
 217                                 "have not been specified"));
 218                         return;
 219                 }
 220
 221         // Map out all the annotation classes
 222         int row_index = 0;
 223         for (const shared_ptr<decode::Decoder>& dec : stack_) {
 224                 assert(dec);
 225                 const srd_decoder *const decc = dec->decoder();
 226                 assert(dec->decoder());
 227
 228                 for (const GSList *l = decc->annotation_rows; l; l = l->next) {
 229                         const srd_decoder_annotation_row *const ann_row =
 230                                 (srd_decoder_annotation_row *)l->data;
 231                         assert(ann_row);
 232
 233                         const Row row(row_index++, decc, ann_row);
 234
 235                         for (const GSList *ll = ann_row->ann_classes;
 236                                 ll; ll = ll->next)
 237                                 class_rows_[make_pair(decc,
 238                                         GPOINTER_TO_INT(ll->data))] = row;
 239                 }
 240         }
 241
 242         // Free the logic data and its segment(s) if it needs to be updated
 243         if (logic_mux_data_invalid_)
 244                 logic_mux_data_.reset();
 245
 246         if (!logic_mux_data_) {
 247                 const uint32_t ch_count = get_assigned_signal_count();
 248                 logic_mux_unit_size_ = (ch_count + 7) / 8;
 249                 logic_mux_data_ = make_shared<Logic>(ch_count);
 250         }
 251
 252         // Receive notifications when new sample data is available
 253         connect_input_notifiers();
 254
 255         if (get_input_segment_count() == 0) {
 256                 set_error_message(tr("No input data"));
 257                 return;
 258         }
 259
 260         // Make sure the logic output data is complete and up-to-date
 261         logic_mux_interrupt_ = false;
 262         logic_mux_thread_ = std::thread(&DecodeSignal::logic_mux_proc, this);
 263
 264         // Decode the muxed logic data
 265         decode_interrupt_ = false;
 266         decode_thread_ = std::thread(&DecodeSignal::decode_proc, this);
 267 }
 268
 269 void DecodeSignal::pause_decode()
 270 {
 271         decode_paused_ = true;
 272 }
 273
 274 void DecodeSignal::resume_decode()
 275 {
 276         // Manual unlocking is done before notifying, to avoid waking up the
 277         // waiting thread only to block again (see notify_one for details)
 278         decode_pause_mutex_.unlock();
 279         decode_pause_cond_.notify_one();
 280         decode_paused_ = false;
 281 }
 282
 283 bool DecodeSignal::is_paused() const
 284 {
 285         return decode_paused_;
 286 }
 287
 288 QString DecodeSignal::error_message() const
 289 {
 290         lock_guard<mutex> lock(output_mutex_);
 291         return error_message_;
 292 }
 293
 294 const vector<data::DecodeChannel> DecodeSignal::get_channels() const
 295 {
 296         return channels_;
 297 }
 298
 299 void DecodeSignal::auto_assign_signals(const shared_ptr<Decoder> dec)
 300 {
 301         bool new_assignment = false;
 302
 303         // Try to auto-select channels that don't have signals assigned yet
 304         for (data::DecodeChannel& ch : channels_) {
 305                 // If a decoder is given, auto-assign only its channels
 306                 if (dec && (ch.decoder_ != dec))
 307                         continue;
 308
 309                 if (ch.assigned_signal)
 310                         continue;
 311
 312                 QString ch_name = ch.name.toLower();
 313                 ch_name = ch_name.replace(QRegExp("[-_.]"), " ");
 314
 315                 shared_ptr<data::SignalBase> match;
 316                 for (const shared_ptr<data::SignalBase>& s : session_.signalbases()) {
 317                         if (!s->enabled())
 318                                 continue;
 319
 320                         QString s_name = s->name().toLower();
 321                         s_name = s_name.replace(QRegExp("[-_.]"), " ");
 322
 323                         if (s->logic_data() &&
 324                                 ((ch_name.contains(s_name)) || (s_name.contains(ch_name)))) {
 325                                 if (!match)
 326                                         match = s;
 327                                 else {
 328                                         // Only replace an existing match if it matches more characters
 329                                         int old_unmatched = ch_name.length() - match->name().length();
 330                                         int new_unmatched = ch_name.length() - s->name().length();
 331                                         if (abs(new_unmatched) < abs(old_unmatched))
 332                                                 match = s;
 333                                 }
 334                         }
 335                 }
 336
 337                 if (match) {
 338                         ch.assigned_signal = match.get();
 339                         new_assignment = true;
 340                 }
 341         }
 342
 343         if (new_assignment) {
 344                 logic_mux_data_invalid_ = true;
 345                 stack_config_changed_ = true;
 346                 commit_decoder_channels();
 347                 channels_updated();
 348         }
 349 }
 350
 351 void DecodeSignal::assign_signal(const uint16_t channel_id, const SignalBase *signal)
 352 {
 353         for (data::DecodeChannel& ch : channels_)
 354                 if (ch.id == channel_id) {
 355                         ch.assigned_signal = signal;
 356                         logic_mux_data_invalid_ = true;
 357                 }
 358
 359         stack_config_changed_ = true;
 360         commit_decoder_channels();
 361         channels_updated();
 362         begin_decode();
 363 }
 364
 365 int DecodeSignal::get_assigned_signal_count() const
 366 {
 367         // Count all channels that have a signal assigned to them
 368         return count_if(channels_.begin(), channels_.end(),
 369                 [](data::DecodeChannel ch) { return ch.assigned_signal; });
 370 }
 371
 372 void DecodeSignal::set_initial_pin_state(const uint16_t channel_id, const int init_state)
 373 {
 374         for (data::DecodeChannel& ch : channels_)
 375                 if (ch.id == channel_id)
 376                         ch.initial_pin_state = init_state;
 377
 378         stack_config_changed_ = true;
 379         channels_updated();
 380         begin_decode();
 381 }
 382
 383 double DecodeSignal::samplerate() const
 384 {
 385         double result = 0;
 386
 387         // TODO For now, we simply return the first samplerate that we have
 388         if (segments_.size() > 0)
 389                 result = segments_.front().samplerate;
 390
 391         return result;
 392 }
 393
 394 const pv::util::Timestamp DecodeSignal::start_time() const
 395 {
 396         pv::util::Timestamp result;
 397
 398         // TODO For now, we simply return the first start time that we have
 399         if (segments_.size() > 0)
 400                 result = segments_.front().start_time;
 401
 402         return result;
 403 }
 404
 405 int64_t DecodeSignal::get_working_sample_count(uint32_t segment_id) const
 406 {
 407         // The working sample count is the highest sample number for
 408         // which all used signals have data available, so go through all
 409         // channels and use the lowest overall sample count of the segment
 410
 411         int64_t count = std::numeric_limits<int64_t>::max();
 412         bool no_signals_assigned = true;
 413
 414         for (const data::DecodeChannel& ch : channels_)
 415                 if (ch.assigned_signal) {
 416                         no_signals_assigned = false;
 417
 418                         const shared_ptr<Logic> logic_data = ch.assigned_signal->logic_data();
 419                         if (!logic_data || logic_data->logic_segments().empty())
 420                                 return 0;
 421
 422                         try {
 423                                 const shared_ptr<LogicSegment> segment = logic_data->logic_segments().at(segment_id);
 424                                 count = min(count, (int64_t)segment->get_sample_count());
 425                         } catch (out_of_range&) {
 426                                 return 0;
 427                         }
 428                 }
 429
 430         return (no_signals_assigned ? 0 : count);
 431 }
 432
 433 int64_t DecodeSignal::get_decoded_sample_count(uint32_t segment_id,
 434         bool include_processing) const
 435 {
 436         lock_guard<mutex> decode_lock(output_mutex_);
 437
 438         int64_t result = 0;
 439
 440         try {
 441                 const DecodeSegment *segment = &(segments_.at(segment_id));
 442                 if (include_processing)
 443                         result = segment->samples_decoded_incl;
 444                 else
 445                         result = segment->samples_decoded_excl;
 446         } catch (out_of_range&) {
 447                 // Do nothing
 448         }
 449
 450         return result;
 451 }
 452
 453 vector<Row> DecodeSignal::get_rows(bool visible_only) const
 454 {
 455         lock_guard<mutex> lock(output_mutex_);
 456
 457         vector<Row> rows;
 458
 459         for (const shared_ptr<decode::Decoder>& dec : stack_) {
 460                 assert(dec);
 461                 if (visible_only && !dec->shown())
 462                         continue;
 463
 464                 const srd_decoder *const decc = dec->decoder();
 465                 assert(dec->decoder());
 466
 467                 int row_index = 0;
 468                 // Add a row for the decoder if it doesn't have a row list
 469                 if (!decc->annotation_rows)
 470                         rows.emplace_back(row_index++, decc);
 471
 472                 // Add the decoder rows
 473                 for (const GSList *l = decc->annotation_rows; l; l = l->next) {
 474                         const srd_decoder_annotation_row *const ann_row =
 475                                 (srd_decoder_annotation_row *)l->data;
 476                         assert(ann_row);
 477                         rows.emplace_back(row_index++, decc, ann_row);
 478                 }
 479         }
 480
 481         return rows;
 482 }
 483
 484 void DecodeSignal::get_annotation_subset(
 485         vector<pv::data::decode::Annotation> &dest,
 486         const decode::Row &row, uint32_t segment_id, uint64_t start_sample,
 487         uint64_t end_sample) const
 488 {
 489         lock_guard<mutex> lock(output_mutex_);
 490
 491         try {
 492                 const DecodeSegment *segment = &(segments_.at(segment_id));
 493                 const map<const decode::Row, decode::RowData> *rows =
 494                         &(segment->annotation_rows);
 495
 496                 const auto iter = rows->find(row);
 497                 if (iter != rows->end())
 498                         (*iter).second.get_annotation_subset(dest,
 499                                 start_sample, end_sample);
 500         } catch (out_of_range&) {
 501                 // Do nothing
 502         }
 503 }
 504
 505 void DecodeSignal::get_annotation_subset(
 506         vector<pv::data::decode::Annotation> &dest,
 507         uint32_t segment_id, uint64_t start_sample, uint64_t end_sample) const
 508 {
 509         // Note: We put all vectors and lists on the heap, not the stack
 510
 511         const vector<Row> rows = get_rows(true);
 512
 513         // Use forward_lists for faster merging
 514         forward_list<Annotation> *all_ann_list = new forward_list<Annotation>();
 515
 516         for (const Row& row : rows) {
 517                 vector<Annotation> *ann_vector = new vector<Annotation>();
 518                 get_annotation_subset(*ann_vector, row, segment_id, start_sample, end_sample);
 519
 520                 forward_list<Annotation> *ann_list =
 521                         new forward_list<Annotation>(ann_vector->begin(), ann_vector->end());
 522                 delete ann_vector;
 523
 524                 all_ann_list->merge(*ann_list);
 525                 delete ann_list;
 526         }
 527
 528         move(all_ann_list->begin(), all_ann_list->end(), back_inserter(dest));
 529         delete all_ann_list;
 530 }
 531
 532 uint32_t DecodeSignal::get_binary_data_chunk_count(uint32_t segment_id) const
 533 {
 534         uint32_t count = 0;
 535
 536         try {
 537                 const DecodeSegment *segment = &(segments_.at(segment_id));
 538                 count = segment->binary_data.size();
 539         } catch (out_of_range&) {
 540                 // Do nothing
 541         }
 542
 543         return count;
 544 }
 545
 546 void DecodeSignal::get_binary_data_chunk(uint32_t segment_id, uint32_t chunk_id,
 547         const vector<uint8_t> **dest, uint64_t *size)
 548 {
 549         try {
 550                 const DecodeSegment *segment = &(segments_.at(segment_id));
 551                 if (dest)
 552                         *dest = &(segment->binary_data.at(chunk_id).data);
 553                 if (size)
 554                         *size = segment->binary_data.at(chunk_id).data.size();
 555         } catch (out_of_range&) {
 556                 // Do nothing
 557         }
 558 }
 559
 560 void DecodeSignal::get_binary_data_chunks_merged(uint32_t segment_id,
 561         uint64_t start_sample, uint64_t end_sample, vector<uint8_t> *dest) const
 562 {
 563         assert(dest != nullptr);
 564
 565         try {
 566                 const DecodeSegment *segment = &(segments_.at(segment_id));
 567
 568                 // Determine overall size before copying to resize dest vector only once
 569                 uint64_t size = 0;
 570                 int matches = 0;
 571                 for (const DecodeBinaryData& d : segment->binary_data)
 572                         if ((d.sample >= start_sample) && (d.sample < end_sample)) {
 573                                 size += d.data.size();
 574                                 matches++;
 575                         }
 576                 dest->resize(size);
 577
 578                 uint64_t index = 0;
 579                 for (const DecodeBinaryData& d : segment->binary_data)
 580                         if ((d.sample >= start_sample) && (d.sample < end_sample)) {
 581                                 memcpy(dest->data() + index, d.data.data(), d.data.size());
 582                                 index += d.data.size();
 583                         }
 584         } catch (out_of_range&) {
 585                 // Do nothing
 586         }
 587 }
 588
 589
 590 void DecodeSignal::save_settings(QSettings &settings) const
 591 {
 592         SignalBase::save_settings(settings);
 593
 594         settings.setValue("decoders", (int)(stack_.size()));
 595
 596         // Save decoder stack
 597         int decoder_idx = 0;
 598         for (const shared_ptr<decode::Decoder>& decoder : stack_) {
 599                 settings.beginGroup("decoder" + QString::number(decoder_idx++));
 600
 601                 settings.setValue("id", decoder->decoder()->id);
 602                 settings.setValue("shown", decoder->shown());
 603
 604                 // Save decoder options
 605                 const map<string, GVariant*>& options = decoder->options();
 606
 607                 settings.setValue("options", (int)options.size());
 608
 609                 // Note: decode::Decoder::options() returns only the options
 610                 // that differ from the default. See binding::Decoder::getter()
 611                 int i = 0;
 612                 for (auto& option : options) {
 613                         settings.beginGroup("option" + QString::number(i));
 614                         settings.setValue("name", QString::fromStdString(option.first));
 615                         GlobalSettings::store_gvariant(settings, option.second);
 616                         settings.endGroup();
 617                         i++;
 618                 }
 619
 620                 settings.endGroup();
 621         }
 622
 623         // Save channel mapping
 624         settings.setValue("channels", (int)channels_.size());
 625
 626         for (unsigned int channel_id = 0; channel_id < channels_.size(); channel_id++) {
 627                 auto channel = find_if(channels_.begin(), channels_.end(),
 628                         [&](data::DecodeChannel ch) { return ch.id == channel_id; });
 629
 630                 if (channel == channels_.end()) {
 631                         qDebug() << "ERROR: Gap in channel index:" << channel_id;
 632                         continue;
 633                 }
 634
 635                 settings.beginGroup("channel" + QString::number(channel_id));
 636
 637                 settings.setValue("name", channel->name);  // Useful for debugging
 638                 settings.setValue("initial_pin_state", channel->initial_pin_state);
 639
 640                 if (channel->assigned_signal)
 641                         settings.setValue("assigned_signal_name", channel->assigned_signal->name());
 642
 643                 settings.endGroup();
 644         }
 645 }
 646
 647 void DecodeSignal::restore_settings(QSettings &settings)
 648 {
 649         SignalBase::restore_settings(settings);
 650
 651         // Restore decoder stack
 652         GSList *dec_list = g_slist_copy((GSList*)srd_decoder_list());
 653
 654         int decoders = settings.value("decoders").toInt();
 655
 656         for (int decoder_idx = 0; decoder_idx < decoders; decoder_idx++) {
 657                 settings.beginGroup("decoder" + QString::number(decoder_idx));
 658
 659                 QString id = settings.value("id").toString();
 660
 661                 for (GSList *entry = dec_list; entry; entry = entry->next) {
 662                         const srd_decoder *dec = (srd_decoder*)entry->data;
 663                         if (!dec)
 664                                 continue;
 665
 666                         if (QString::fromUtf8(dec->id) == id) {
 667                                 shared_ptr<decode::Decoder> decoder =
 668                                         make_shared<decode::Decoder>(dec);
 669
 670                                 stack_.push_back(decoder);
 671                                 decoder->show(settings.value("shown", true).toBool());
 672
 673                                 // Restore decoder options that differ from their default
 674                                 int options = settings.value("options").toInt();
 675
 676                                 for (int i = 0; i < options; i++) {
 677                                         settings.beginGroup("option" + QString::number(i));
 678                                         QString name = settings.value("name").toString();
 679                                         GVariant *value = GlobalSettings::restore_gvariant(settings);
 680                                         decoder->set_option(name.toUtf8(), value);
 681                                         settings.endGroup();
 682                                 }
 683
 684                                 // Include the newly created decode channels in the channel lists
 685                                 update_channel_list();
 686                                 break;
 687                         }
 688                 }
 689
 690                 settings.endGroup();
 691                 channels_updated();
 692         }
 693
 694         // Restore channel mapping
 695         unsigned int channels = settings.value("channels").toInt();
 696
 697         const unordered_set< shared_ptr<data::SignalBase> > signalbases =
 698                 session_.signalbases();
 699
 700         for (unsigned int channel_id = 0; channel_id < channels; channel_id++) {
 701                 auto channel = find_if(channels_.begin(), channels_.end(),
 702                         [&](data::DecodeChannel ch) { return ch.id == channel_id; });
 703
 704                 if (channel == channels_.end()) {
 705                         qDebug() << "ERROR: Non-existant channel index:" << channel_id;
 706                         continue;
 707                 }
 708
 709                 settings.beginGroup("channel" + QString::number(channel_id));
 710
 711                 QString assigned_signal_name = settings.value("assigned_signal_name").toString();
 712
 713                 for (const shared_ptr<data::SignalBase>& signal : signalbases)
 714                         if (signal->name() == assigned_signal_name)
 715                                 channel->assigned_signal = signal.get();
 716
 717                 channel->initial_pin_state = settings.value("initial_pin_state").toInt();
 718
 719                 settings.endGroup();
 720         }
 721
 722         // Update the internal structures
 723         stack_config_changed_ = true;
 724         update_channel_list();
 725         commit_decoder_channels();
 726
 727         begin_decode();
 728 }
 729
 730 void DecodeSignal::set_error_message(QString msg)
 731 {
 732         error_message_ = msg;
 733         // TODO Emulate noquote()
 734         qDebug().nospace() << name() << ": " << msg;
 735 }
 736
 737 uint32_t DecodeSignal::get_input_segment_count() const
 738 {
 739         uint64_t count = std::numeric_limits<uint64_t>::max();
 740         bool no_signals_assigned = true;
 741
 742         for (const data::DecodeChannel& ch : channels_)
 743                 if (ch.assigned_signal) {
 744                         no_signals_assigned = false;
 745
 746                         const shared_ptr<Logic> logic_data = ch.assigned_signal->logic_data();
 747                         if (!logic_data || logic_data->logic_segments().empty())
 748                                 return 0;
 749
 750                         // Find the min value of all segment counts
 751                         if ((uint64_t)(logic_data->logic_segments().size()) < count)
 752                                 count = logic_data->logic_segments().size();
 753                 }
 754
 755         return (no_signals_assigned ? 0 : count);
 756 }
 757
 758 uint32_t DecodeSignal::get_input_samplerate(uint32_t segment_id) const
 759 {
 760         double samplerate = 0;
 761
 762         for (const data::DecodeChannel& ch : channels_)
 763                 if (ch.assigned_signal) {
 764                         const shared_ptr<Logic> logic_data = ch.assigned_signal->logic_data();
 765                         if (!logic_data || logic_data->logic_segments().empty())
 766                                 continue;
 767
 768                         try {
 769                                 const shared_ptr<LogicSegment> segment = logic_data->logic_segments().at(segment_id);
 770                                 samplerate = segment->samplerate();
 771                         } catch (out_of_range&) {
 772                                 // Do nothing
 773                         }
 774                         break;
 775                 }
 776
 777         return samplerate;
 778 }
 779
 780 void DecodeSignal::update_channel_list()
 781 {
 782         vector<data::DecodeChannel> prev_channels = channels_;
 783         channels_.clear();
 784
 785         uint16_t id = 0;
 786
 787         // Copy existing entries, create new as needed
 788         for (shared_ptr<Decoder>& decoder : stack_) {
 789                 const srd_decoder* srd_d = decoder->decoder();
 790                 const GSList *l;
 791
 792                 // Mandatory channels
 793                 for (l = srd_d->channels; l; l = l->next) {
 794                         const struct srd_channel *const pdch = (struct srd_channel *)l->data;
 795                         bool ch_added = false;
 796
 797                         // Copy but update ID if this channel was in the list before
 798                         for (data::DecodeChannel& ch : prev_channels)
 799                                 if (ch.pdch_ == pdch) {
 800                                         ch.id = id++;
 801                                         channels_.push_back(ch);
 802                                         ch_added = true;
 803                                         break;
 804                                 }
 805
 806                         if (!ch_added) {
 807                                 // Create new entry without a mapped signal
 808                                 data::DecodeChannel ch = {id++, 0, false, nullptr,
 809                                         QString::fromUtf8(pdch->name), QString::fromUtf8(pdch->desc),
 810                                         SRD_INITIAL_PIN_SAME_AS_SAMPLE0, decoder, pdch};
 811                                 channels_.push_back(ch);
 812                         }
 813                 }
 814
 815                 // Optional channels
 816                 for (l = srd_d->opt_channels; l; l = l->next) {
 817                         const struct srd_channel *const pdch = (struct srd_channel *)l->data;
 818                         bool ch_added = false;
 819
 820                         // Copy but update ID if this channel was in the list before
 821                         for (data::DecodeChannel& ch : prev_channels)
 822                                 if (ch.pdch_ == pdch) {
 823                                         ch.id = id++;
 824                                         channels_.push_back(ch);
 825                                         ch_added = true;
 826                                         break;
 827                                 }
 828
 829                         if (!ch_added) {
 830                                 // Create new entry without a mapped signal
 831                                 data::DecodeChannel ch = {id++, 0, true, nullptr,
 832                                         QString::fromUtf8(pdch->name), QString::fromUtf8(pdch->desc),
 833                                         SRD_INITIAL_PIN_SAME_AS_SAMPLE0, decoder, pdch};
 834                                 channels_.push_back(ch);
 835                         }
 836                 }
 837         }
 838
 839         // Invalidate the logic output data if the channel assignment changed
 840         if (prev_channels.size() != channels_.size()) {
 841                 // The number of channels changed, there's definitely a difference
 842                 logic_mux_data_invalid_ = true;
 843         } else {
 844                 // Same number but assignment may still differ, so compare all channels
 845                 for (size_t i = 0; i < channels_.size(); i++) {
 846                         const data::DecodeChannel& p_ch = prev_channels[i];
 847                         const data::DecodeChannel& ch = channels_[i];
 848
 849                         if ((p_ch.pdch_ != ch.pdch_) ||
 850                                 (p_ch.assigned_signal != ch.assigned_signal)) {
 851                                 logic_mux_data_invalid_ = true;
 852                                 break;
 853                         }
 854                 }
 855
 856         }
 857
 858         channels_updated();
 859 }
 860
 861 void DecodeSignal::commit_decoder_channels()
 862 {
 863         // Submit channel list to every decoder, containing only the relevant channels
 864         for (shared_ptr<decode::Decoder> dec : stack_) {
 865                 vector<data::DecodeChannel*> channel_list;
 866
 867                 for (data::DecodeChannel& ch : channels_)
 868                         if (ch.decoder_ == dec)
 869                                 channel_list.push_back(&ch);
 870
 871                 dec->set_channels(channel_list);
 872         }
 873
 874         // Channel bit IDs must be in sync with the channel's apperance in channels_
 875         int id = 0;
 876         for (data::DecodeChannel& ch : channels_)
 877                 if (ch.assigned_signal)
 878                         ch.bit_id = id++;
 879 }
 880
 881 void DecodeSignal::mux_logic_samples(uint32_t segment_id, const int64_t start, const int64_t end)
 882 {
 883         // Enforce end to be greater than start
 884         if (end <= start)
 885                 return;
 886
 887         // Fetch the channel segments and their data
 888         vector<shared_ptr<LogicSegment> > segments;
 889         vector<const uint8_t*> signal_data;
 890         vector<uint8_t> signal_in_bytepos;
 891         vector<uint8_t> signal_in_bitpos;
 892
 893         for (data::DecodeChannel& ch : channels_)
 894                 if (ch.assigned_signal) {
 895                         const shared_ptr<Logic> logic_data = ch.assigned_signal->logic_data();
 896
 897                         shared_ptr<LogicSegment> segment;
 898                         try {
 899                                 segment = logic_data->logic_segments().at(segment_id);
 900                         } catch (out_of_range&) {
 901                                 qDebug() << "Muxer error for" << name() << ":" << ch.assigned_signal->name() \
 902                                         << "has no logic segment" << segment_id;
 903                                 return;
 904                         }
 905                         segments.push_back(segment);
 906
 907                         uint8_t* data = new uint8_t[(end - start) * segment->unit_size()];
 908                         segment->get_samples(start, end, data);
 909                         signal_data.push_back(data);
 910
 911                         const int bitpos = ch.assigned_signal->logic_bit_index();
 912                         signal_in_bytepos.push_back(bitpos / 8);
 913                         signal_in_bitpos.push_back(bitpos % 8);
 914                 }
 915
 916
 917         shared_ptr<LogicSegment> output_segment;
 918         try {
 919                 output_segment = logic_mux_data_->logic_segments().at(segment_id);
 920         } catch (out_of_range&) {
 921                 qDebug() << "Muxer error for" << name() << ": no logic mux segment" \
 922                         << segment_id << "in mux_logic_samples(), mux segments size is" \
 923                         << logic_mux_data_->logic_segments().size();
 924                 return;
 925         }
 926
 927         // Perform the muxing of signal data into the output data
 928         uint8_t* output = new uint8_t[(end - start) * output_segment->unit_size()];
 929         unsigned int signal_count = signal_data.size();
 930
 931         for (int64_t sample_cnt = 0; !logic_mux_interrupt_ && (sample_cnt < (end - start));
 932                 sample_cnt++) {
 933
 934                 int bitpos = 0;
 935                 uint8_t bytepos = 0;
 936
 937                 const int out_sample_pos = sample_cnt * output_segment->unit_size();
 938                 for (unsigned int i = 0; i < output_segment->unit_size(); i++)
 939                         output[out_sample_pos + i] = 0;
 940
 941                 for (unsigned int i = 0; i < signal_count; i++) {
 942                         const int in_sample_pos = sample_cnt * segments[i]->unit_size();
 943                         const uint8_t in_sample = 1 &
 944                                 ((signal_data[i][in_sample_pos + signal_in_bytepos[i]]) >> (signal_in_bitpos[i]));
 945
 946                         const uint8_t out_sample = output[out_sample_pos + bytepos];
 947
 948                         output[out_sample_pos + bytepos] = out_sample | (in_sample << bitpos);
 949
 950                         bitpos++;
 951                         if (bitpos > 7) {
 952                                 bitpos = 0;
 953                                 bytepos++;
 954                         }
 955                 }
 956         }
 957
 958         output_segment->append_payload(output, (end - start) * output_segment->unit_size());
 959         delete[] output;
 960
 961         for (const uint8_t* data : signal_data)
 962                 delete[] data;
 963 }
 964
 965 void DecodeSignal::logic_mux_proc()
 966 {
 967         uint32_t segment_id = 0;
 968
 969         assert(logic_mux_data_);
 970
 971         // Create initial logic mux segment
 972         shared_ptr<LogicSegment> output_segment =
 973                 make_shared<LogicSegment>(*logic_mux_data_, segment_id,
 974                         logic_mux_unit_size_, 0);
 975         logic_mux_data_->push_segment(output_segment);
 976
 977         output_segment->set_samplerate(get_input_samplerate(0));
 978
 979         do {
 980                 const uint64_t input_sample_count = get_working_sample_count(segment_id);
 981                 const uint64_t output_sample_count = output_segment->get_sample_count();
 982
 983                 const uint64_t samples_to_process =
 984                         (input_sample_count > output_sample_count) ?
 985                         (input_sample_count - output_sample_count) : 0;
 986
 987                 // Process the samples if necessary...
 988                 if (samples_to_process > 0) {
 989                         const uint64_t unit_size = output_segment->unit_size();
 990                         const uint64_t chunk_sample_count = DecodeChunkLength / unit_size;
 991
 992                         uint64_t processed_samples = 0;
 993                         do {
 994                                 const uint64_t start_sample = output_sample_count + processed_samples;
 995                                 const uint64_t sample_count =
 996                                         min(samples_to_process - processed_samples,     chunk_sample_count);
 997
 998                                 mux_logic_samples(segment_id, start_sample, start_sample + sample_count);
 999                                 processed_samples += sample_count;
1000
1001                                 // ...and process the newly muxed logic data
1002                                 decode_input_cond_.notify_one();
1003                         } while (!logic_mux_interrupt_ && (processed_samples < samples_to_process));
1004                 }
1005
1006                 if (samples_to_process == 0) {
1007                         // TODO Optimize this by caching the input segment count and only
1008                         // querying it when the cached value was reached
1009                         if (segment_id < get_input_segment_count() - 1) {
1010                                 // Process next segment
1011                                 segment_id++;
1012
1013                                 output_segment =
1014                                         make_shared<LogicSegment>(*logic_mux_data_, segment_id,
1015                                                 logic_mux_unit_size_, 0);
1016                                 logic_mux_data_->push_segment(output_segment);
1017
1018                                 output_segment->set_samplerate(get_input_samplerate(segment_id));
1019
1020                         } else {
1021                                 // All segments have been processed
1022                                 logic_mux_data_invalid_ = false;
1023
1024                                 // Wait for more input
1025                                 unique_lock<mutex> logic_mux_lock(logic_mux_mutex_);
1026                                 logic_mux_cond_.wait(logic_mux_lock);
1027                         }
1028                 }
1029
1030         } while (!logic_mux_interrupt_);
1031 }
1032
1033 void DecodeSignal::decode_data(
1034         const int64_t abs_start_samplenum, const int64_t sample_count,
1035         const shared_ptr<LogicSegment> input_segment)
1036 {
1037         const int64_t unit_size = input_segment->unit_size();
1038         const int64_t chunk_sample_count = DecodeChunkLength / unit_size;
1039
1040         for (int64_t i = abs_start_samplenum;
1041                 error_message_.isEmpty() && !decode_interrupt_ &&
1042                         (i < (abs_start_samplenum + sample_count));
1043                 i += chunk_sample_count) {
1044
1045                 const int64_t chunk_end = min(i + chunk_sample_count,
1046                         abs_start_samplenum + sample_count);
1047
1048                 {
1049                         lock_guard<mutex> lock(output_mutex_);
1050                         // Update the sample count showing the samples including currently processed ones
1051                         segments_.at(current_segment_id_).samples_decoded_incl = chunk_end;
1052                 }
1053
1054                 int64_t data_size = (chunk_end - i) * unit_size;
1055                 uint8_t* chunk = new uint8_t[data_size];
1056                 input_segment->get_samples(i, chunk_end, chunk);
1057
1058                 if (srd_session_send(srd_session_, i, chunk_end, chunk,
1059                                 data_size, unit_size) != SRD_OK)
1060                         set_error_message(tr("Decoder reported an error"));
1061
1062                 delete[] chunk;
1063
1064                 {
1065                         lock_guard<mutex> lock(output_mutex_);
1066                         // Now that all samples are processed, the exclusive sample count catches up
1067                         segments_.at(current_segment_id_).samples_decoded_excl = chunk_end;
1068                 }
1069
1070                 // Notify the frontend that we processed some data and
1071                 // possibly have new annotations as well
1072                 new_annotations();
1073
1074                 if (decode_paused_) {
1075                         unique_lock<mutex> pause_wait_lock(decode_pause_mutex_);
1076                         decode_pause_cond_.wait(pause_wait_lock);
1077                 }
1078         }
1079 }
1080
1081 void DecodeSignal::decode_proc()
1082 {
1083         current_segment_id_ = 0;
1084
1085         // If there is no input data available yet, wait until it is or we're interrupted
1086         if (logic_mux_data_->logic_segments().size() == 0) {
1087                 unique_lock<mutex> input_wait_lock(input_mutex_);
1088                 decode_input_cond_.wait(input_wait_lock);
1089         }
1090
1091         if (decode_interrupt_)
1092                 return;
1093
1094         shared_ptr<LogicSegment> input_segment = logic_mux_data_->logic_segments().front();
1095         assert(input_segment);
1096
1097         // Create the initial segment and set its sample rate so that we can pass it to SRD
1098         create_decode_segment();
1099         segments_.at(current_segment_id_).samplerate = input_segment->samplerate();
1100         segments_.at(current_segment_id_).start_time = input_segment->start_time();
1101
1102         start_srd_session();
1103
1104         uint64_t sample_count = 0;
1105         uint64_t abs_start_samplenum = 0;
1106         do {
1107                 // Keep processing new samples until we exhaust the input data
1108                 do {
1109                         lock_guard<mutex> input_lock(input_mutex_);
1110                         sample_count = input_segment->get_sample_count() - abs_start_samplenum;
1111
1112                         if (sample_count > 0) {
1113                                 decode_data(abs_start_samplenum, sample_count, input_segment);
1114                                 abs_start_samplenum += sample_count;
1115                         }
1116                 } while (error_message_.isEmpty() && (sample_count > 0) && !decode_interrupt_);
1117
1118                 if (error_message_.isEmpty() && !decode_interrupt_ && sample_count == 0) {
1119                         if (current_segment_id_ < logic_mux_data_->logic_segments().size() - 1) {
1120                                 // Process next segment
1121                                 current_segment_id_++;
1122
1123                                 try {
1124                                         input_segment = logic_mux_data_->logic_segments().at(current_segment_id_);
1125                                 } catch (out_of_range&) {
1126                                         qDebug() << "Decode error for" << name() << ": no logic mux segment" \
1127                                                 << current_segment_id_ << "in decode_proc(), mux segments size is" \
1128                                                 << logic_mux_data_->logic_segments().size();
1129                                         return;
1130                                 }
1131                                 abs_start_samplenum = 0;
1132
1133                                 // Create the next segment and set its metadata
1134                                 create_decode_segment();
1135                                 segments_.at(current_segment_id_).samplerate = input_segment->samplerate();
1136                                 segments_.at(current_segment_id_).start_time = input_segment->start_time();
1137
1138                                 // Reset decoder state but keep the decoder stack intact
1139                                 terminate_srd_session();
1140                         } else {
1141                                 // All segments have been processed
1142                                 decode_finished();
1143
1144                                 // Wait for new input data or an interrupt was requested
1145                                 unique_lock<mutex> input_wait_lock(input_mutex_);
1146                                 decode_input_cond_.wait(input_wait_lock);
1147                         }
1148                 }
1149         } while (error_message_.isEmpty() && !decode_interrupt_);
1150
1151         // Potentially reap decoders when the application no longer is
1152         // interested in their (pending) results.
1153         if (decode_interrupt_)
1154                 terminate_srd_session();
1155 }
1156
1157 void DecodeSignal::start_srd_session()
1158 {
1159         // If there were stack changes, the session has been destroyed by now, so if
1160         // it hasn't been destroyed, we can just reset and re-use it
1161         if (srd_session_) {
1162                 // When a decoder stack was created before, re-use it
1163                 // for the next stream of input data, after terminating
1164                 // potentially still executing operations, and resetting
1165                 // internal state. Skip the rather expensive (teardown
1166                 // and) construction of another decoder stack.
1167
1168                 // TODO Reduce redundancy, use a common code path for
1169                 // the meta/start sequence?
1170                 terminate_srd_session();
1171
1172                 // Metadata is cleared also, so re-set it
1173                 uint64_t samplerate = 0;
1174                 if (segments_.size() > 0)
1175                         samplerate = segments_.at(current_segment_id_).samplerate;
1176                 if (samplerate)
1177                         srd_session_metadata_set(srd_session_, SRD_CONF_SAMPLERATE,
1178                                 g_variant_new_uint64(samplerate));
1179                 for (const shared_ptr<decode::Decoder>& dec : stack_)
1180                         dec->apply_all_options();
1181                 srd_session_start(srd_session_);
1182
1183                 return;
1184         }
1185
1186         // Create the session
1187         srd_session_new(&srd_session_);
1188         assert(srd_session_);
1189
1190         // Create the decoders
1191         srd_decoder_inst *prev_di = nullptr;
1192         for (const shared_ptr<decode::Decoder>& dec : stack_) {
1193                 srd_decoder_inst *const di = dec->create_decoder_inst(srd_session_);
1194
1195                 if (!di) {
1196                         set_error_message(tr("Failed to create decoder instance"));
1197                         srd_session_destroy(srd_session_);
1198                         srd_session_ = nullptr;
1199                         return;
1200                 }
1201
1202                 if (prev_di)
1203                         srd_inst_stack(srd_session_, prev_di, di);
1204
1205                 prev_di = di;
1206         }
1207
1208         // Start the session
1209         if (segments_.size() > 0)
1210                 srd_session_metadata_set(srd_session_, SRD_CONF_SAMPLERATE,
1211                         g_variant_new_uint64(segments_.at(current_segment_id_).samplerate));
1212
1213         srd_pd_output_callback_add(srd_session_, SRD_OUTPUT_ANN,
1214                 DecodeSignal::annotation_callback, this);
1215
1216         srd_pd_output_callback_add(srd_session_, SRD_OUTPUT_BINARY,
1217                 DecodeSignal::binary_callback, this);
1218
1219         srd_session_start(srd_session_);
1220
1221         // We just recreated the srd session, so all stack changes are applied now
1222         stack_config_changed_ = false;
1223 }
1224
1225 void DecodeSignal::terminate_srd_session()
1226 {
1227         // Call the "terminate and reset" routine for the decoder stack
1228         // (if available). This does not harm those stacks which already
1229         // have completed their operation, and reduces response time for
1230         // those stacks which still are processing data while the
1231         // application no longer wants them to.
1232         if (srd_session_) {
1233                 srd_session_terminate_reset(srd_session_);
1234
1235                 // Metadata is cleared also, so re-set it
1236                 uint64_t samplerate = 0;
1237                 if (segments_.size() > 0)
1238                         samplerate = segments_.at(current_segment_id_).samplerate;
1239                 if (samplerate)
1240                         srd_session_metadata_set(srd_session_, SRD_CONF_SAMPLERATE,
1241                                 g_variant_new_uint64(samplerate));
1242                 for (const shared_ptr<decode::Decoder>& dec : stack_)
1243                         dec->apply_all_options();
1244         }
1245 }
1246
1247 void DecodeSignal::stop_srd_session()
1248 {
1249         if (srd_session_) {
1250                 // Destroy the session
1251                 srd_session_destroy(srd_session_);
1252                 srd_session_ = nullptr;
1253
1254                 // Mark the decoder instances as non-existant since they were deleted
1255                 for (const shared_ptr<decode::Decoder>& dec : stack_)
1256                         dec->invalidate_decoder_inst();
1257         }
1258 }
1259
1260 void DecodeSignal::connect_input_notifiers()
1261 {
1262         // Disconnect the notification slot from the previous set of signals
1263         disconnect(this, SLOT(on_data_cleared()));
1264         disconnect(this, SLOT(on_data_received()));
1265
1266         // Connect the currently used signals to our slot
1267         for (data::DecodeChannel& ch : channels_) {
1268                 if (!ch.assigned_signal)
1269                         continue;
1270
1271                 const data::SignalBase *signal = ch.assigned_signal;
1272                 connect(signal, SIGNAL(samples_cleared()),
1273                         this, SLOT(on_data_cleared()));
1274                 connect(signal, SIGNAL(samples_added(uint64_t, uint64_t, uint64_t)),
1275                         this, SLOT(on_data_received()));
1276         }
1277 }
1278
1279 void DecodeSignal::create_decode_segment()
1280 {
1281         // Create annotation segment
1282         segments_.emplace_back(DecodeSegment());
1283
1284         // Add annotation classes
1285         for (const shared_ptr<decode::Decoder>& dec : stack_) {
1286                 assert(dec);
1287                 const srd_decoder *const decc = dec->decoder();
1288                 assert(dec->decoder());
1289
1290                 int row_index = 0;
1291                 // Add a row for the decoder if it doesn't have a row list
1292                 if (!decc->annotation_rows)
1293                         (segments_.back().annotation_rows)[Row(row_index++, decc)] =
1294                                 decode::RowData();
1295
1296                 // Add the decoder rows
1297                 for (const GSList *l = decc->annotation_rows; l; l = l->next) {
1298                         const srd_decoder_annotation_row *const ann_row =
1299                                 (srd_decoder_annotation_row *)l->data;
1300                         assert(ann_row);
1301
1302                         const Row row(row_index++, decc, ann_row);
1303
1304                         // Add a new empty row data object
1305                         (segments_.back().annotation_rows)[row] =
1306                                 decode::RowData();
1307                 }
1308         }
1309 }
1310
1311 void DecodeSignal::annotation_callback(srd_proto_data *pdata, void *decode_signal)
1312 {
1313         assert(pdata);
1314         assert(decode_signal);
1315
1316         DecodeSignal *const ds = (DecodeSignal*)decode_signal;
1317         assert(ds);
1318
1319         if (ds->decode_interrupt_)
1320                 return;
1321
1322         lock_guard<mutex> lock(ds->output_mutex_);
1323
1324         // Get the decoder and the annotation data
1325         assert(pdata->pdo);
1326         assert(pdata->pdo->di);
1327         const srd_decoder *const decc = pdata->pdo->di->decoder;
1328         assert(decc);
1329
1330         const srd_proto_data_annotation *const pda = (const srd_proto_data_annotation*)pdata->data;
1331         assert(pda);
1332
1333         // Find the row
1334         auto row_iter = ds->segments_.at(ds->current_segment_id_).annotation_rows.end();
1335
1336         // Try finding a better row match than the default by looking up the sub-row of this class
1337         const auto format = pda->ann_class;
1338         const auto r = ds->class_rows_.find(make_pair(decc, format));
1339         if (r != ds->class_rows_.end())
1340                 row_iter = ds->segments_.at(ds->current_segment_id_).annotation_rows.find((*r).second);
1341         else {
1342                 // Failing that, use the decoder as a key
1343                 row_iter = ds->segments_.at(ds->current_segment_id_).annotation_rows.find(Row(0, decc));
1344         }
1345
1346         if (row_iter == ds->segments_.at(ds->current_segment_id_).annotation_rows.end()) {
1347                 qDebug() << "Unexpected annotation: decoder = " << decc <<
1348                         ", format = " << format;
1349                 assert(false);
1350                 return;
1351         }
1352
1353         // Add the annotation
1354         (*row_iter).second.emplace_annotation(pdata, &((*row_iter).first));
1355 }
1356
1357 void DecodeSignal::binary_callback(srd_proto_data *pdata, void *decode_signal)
1358 {
1359         assert(pdata);
1360         assert(decode_signal);
1361
1362         DecodeSignal *const ds = (DecodeSignal*)decode_signal;
1363         assert(ds);
1364
1365         if (ds->decode_interrupt_)
1366                 return;
1367
1368         const srd_proto_data_binary *const pdb = (const srd_proto_data_binary*)pdata->data;
1369         assert(pdb);
1370
1371         DecodeSegment* segment = &(ds->segments_.at(ds->current_segment_id_));
1372
1373         segment->binary_data.emplace_back();
1374         DecodeBinaryData* bin_data = &(segment->binary_data.back());
1375
1376         bin_data->sample = pdata->start_sample;
1377         bin_data->data.resize(pdb->size);
1378         memcpy(bin_data->data.data(), pdb->data, pdb->size);
1379
1380         ds->new_binary_data(ds->current_segment_id_);
1381 }
1382
1383 void DecodeSignal::on_capture_state_changed(int state)
1384 {
1385         // If a new acquisition was started, we need to start decoding from scratch
1386         if (state == Session::Running) {
1387                 logic_mux_data_invalid_ = true;
1388                 begin_decode();
1389         }
1390 }
1391
1392 void DecodeSignal::on_data_cleared()
1393 {
1394         reset_decode();
1395 }
1396
1397 void DecodeSignal::on_data_received()
1398 {
1399         // If we detected a lack of input data when trying to start decoding,
1400         // we have set an error message. Only try again if we now have data
1401         // to work with
1402         if ((!error_message_.isEmpty()) && (get_input_segment_count() == 0))
1403                 return;
1404
1405         if (!logic_mux_thread_.joinable())
1406                 begin_decode();
1407         else
1408                 logic_mux_cond_.notify_one();
1409 }
1410
1411 } // namespace data
1412 } // namespace pv