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                 for (const DecodeBinaryData& d : segment->binary_data)
 571                         if ((d.sample >= start_sample) && (d.sample < end_sample))
 572                                 size += d.data.size();
 573                 dest->reserve(size);
 574
 575                 uint64_t index = 0;
 576                 for (const DecodeBinaryData& d : segment->binary_data)
 577                         if ((d.sample >= start_sample) && (d.sample < end_sample)) {
 578                                 memcpy(dest->data() + index, d.data.data(), d.data.size());
 579                                 index += d.data.size();
 580                         }
 581         } catch (out_of_range&) {
 582                 // Do nothing
 583         }
 584 }
 585
 586
 587 void DecodeSignal::save_settings(QSettings &settings) const
 588 {
 589         SignalBase::save_settings(settings);
 590
 591         settings.setValue("decoders", (int)(stack_.size()));
 592
 593         // Save decoder stack
 594         int decoder_idx = 0;
 595         for (const shared_ptr<decode::Decoder>& decoder : stack_) {
 596                 settings.beginGroup("decoder" + QString::number(decoder_idx++));
 597
 598                 settings.setValue("id", decoder->decoder()->id);
 599                 settings.setValue("shown", decoder->shown());
 600
 601                 // Save decoder options
 602                 const map<string, GVariant*>& options = decoder->options();
 603
 604                 settings.setValue("options", (int)options.size());
 605
 606                 // Note: decode::Decoder::options() returns only the options
 607                 // that differ from the default. See binding::Decoder::getter()
 608                 int i = 0;
 609                 for (auto& option : options) {
 610                         settings.beginGroup("option" + QString::number(i));
 611                         settings.setValue("name", QString::fromStdString(option.first));
 612                         GlobalSettings::store_gvariant(settings, option.second);
 613                         settings.endGroup();
 614                         i++;
 615                 }
 616
 617                 settings.endGroup();
 618         }
 619
 620         // Save channel mapping
 621         settings.setValue("channels", (int)channels_.size());
 622
 623         for (unsigned int channel_id = 0; channel_id < channels_.size(); channel_id++) {
 624                 auto channel = find_if(channels_.begin(), channels_.end(),
 625                         [&](data::DecodeChannel ch) { return ch.id == channel_id; });
 626
 627                 if (channel == channels_.end()) {
 628                         qDebug() << "ERROR: Gap in channel index:" << channel_id;
 629                         continue;
 630                 }
 631
 632                 settings.beginGroup("channel" + QString::number(channel_id));
 633
 634                 settings.setValue("name", channel->name);  // Useful for debugging
 635                 settings.setValue("initial_pin_state", channel->initial_pin_state);
 636
 637                 if (channel->assigned_signal)
 638                         settings.setValue("assigned_signal_name", channel->assigned_signal->name());
 639
 640                 settings.endGroup();
 641         }
 642 }
 643
 644 void DecodeSignal::restore_settings(QSettings &settings)
 645 {
 646         SignalBase::restore_settings(settings);
 647
 648         // Restore decoder stack
 649         GSList *dec_list = g_slist_copy((GSList*)srd_decoder_list());
 650
 651         int decoders = settings.value("decoders").toInt();
 652
 653         for (int decoder_idx = 0; decoder_idx < decoders; decoder_idx++) {
 654                 settings.beginGroup("decoder" + QString::number(decoder_idx));
 655
 656                 QString id = settings.value("id").toString();
 657
 658                 for (GSList *entry = dec_list; entry; entry = entry->next) {
 659                         const srd_decoder *dec = (srd_decoder*)entry->data;
 660                         if (!dec)
 661                                 continue;
 662
 663                         if (QString::fromUtf8(dec->id) == id) {
 664                                 shared_ptr<decode::Decoder> decoder =
 665                                         make_shared<decode::Decoder>(dec);
 666
 667                                 stack_.push_back(decoder);
 668                                 decoder->show(settings.value("shown", true).toBool());
 669
 670                                 // Restore decoder options that differ from their default
 671                                 int options = settings.value("options").toInt();
 672
 673                                 for (int i = 0; i < options; i++) {
 674                                         settings.beginGroup("option" + QString::number(i));
 675                                         QString name = settings.value("name").toString();
 676                                         GVariant *value = GlobalSettings::restore_gvariant(settings);
 677                                         decoder->set_option(name.toUtf8(), value);
 678                                         settings.endGroup();
 679                                 }
 680
 681                                 // Include the newly created decode channels in the channel lists
 682                                 update_channel_list();
 683                                 break;
 684                         }
 685                 }
 686
 687                 settings.endGroup();
 688                 channels_updated();
 689         }
 690
 691         // Restore channel mapping
 692         unsigned int channels = settings.value("channels").toInt();
 693
 694         const unordered_set< shared_ptr<data::SignalBase> > signalbases =
 695                 session_.signalbases();
 696
 697         for (unsigned int channel_id = 0; channel_id < channels; channel_id++) {
 698                 auto channel = find_if(channels_.begin(), channels_.end(),
 699                         [&](data::DecodeChannel ch) { return ch.id == channel_id; });
 700
 701                 if (channel == channels_.end()) {
 702                         qDebug() << "ERROR: Non-existant channel index:" << channel_id;
 703                         continue;
 704                 }
 705
 706                 settings.beginGroup("channel" + QString::number(channel_id));
 707
 708                 QString assigned_signal_name = settings.value("assigned_signal_name").toString();
 709
 710                 for (const shared_ptr<data::SignalBase>& signal : signalbases)
 711                         if (signal->name() == assigned_signal_name)
 712                                 channel->assigned_signal = signal.get();
 713
 714                 channel->initial_pin_state = settings.value("initial_pin_state").toInt();
 715
 716                 settings.endGroup();
 717         }
 718
 719         // Update the internal structures
 720         stack_config_changed_ = true;
 721         update_channel_list();
 722         commit_decoder_channels();
 723
 724         begin_decode();
 725 }
 726
 727 void DecodeSignal::set_error_message(QString msg)
 728 {
 729         error_message_ = msg;
 730         // TODO Emulate noquote()
 731         qDebug().nospace() << name() << ": " << msg;
 732 }
 733
 734 uint32_t DecodeSignal::get_input_segment_count() const
 735 {
 736         uint64_t count = std::numeric_limits<uint64_t>::max();
 737         bool no_signals_assigned = true;
 738
 739         for (const data::DecodeChannel& ch : channels_)
 740                 if (ch.assigned_signal) {
 741                         no_signals_assigned = false;
 742
 743                         const shared_ptr<Logic> logic_data = ch.assigned_signal->logic_data();
 744                         if (!logic_data || logic_data->logic_segments().empty())
 745                                 return 0;
 746
 747                         // Find the min value of all segment counts
 748                         if ((uint64_t)(logic_data->logic_segments().size()) < count)
 749                                 count = logic_data->logic_segments().size();
 750                 }
 751
 752         return (no_signals_assigned ? 0 : count);
 753 }
 754
 755 uint32_t DecodeSignal::get_input_samplerate(uint32_t segment_id) const
 756 {
 757         double samplerate = 0;
 758
 759         for (const data::DecodeChannel& ch : channels_)
 760                 if (ch.assigned_signal) {
 761                         const shared_ptr<Logic> logic_data = ch.assigned_signal->logic_data();
 762                         if (!logic_data || logic_data->logic_segments().empty())
 763                                 continue;
 764
 765                         try {
 766                                 const shared_ptr<LogicSegment> segment = logic_data->logic_segments().at(segment_id);
 767                                 samplerate = segment->samplerate();
 768                         } catch (out_of_range&) {
 769                                 // Do nothing
 770                         }
 771                         break;
 772                 }
 773
 774         return samplerate;
 775 }
 776
 777 void DecodeSignal::update_channel_list()
 778 {
 779         vector<data::DecodeChannel> prev_channels = channels_;
 780         channels_.clear();
 781
 782         uint16_t id = 0;
 783
 784         // Copy existing entries, create new as needed
 785         for (shared_ptr<Decoder>& decoder : stack_) {
 786                 const srd_decoder* srd_d = decoder->decoder();
 787                 const GSList *l;
 788
 789                 // Mandatory channels
 790                 for (l = srd_d->channels; l; l = l->next) {
 791                         const struct srd_channel *const pdch = (struct srd_channel *)l->data;
 792                         bool ch_added = false;
 793
 794                         // Copy but update ID if this channel was in the list before
 795                         for (data::DecodeChannel& ch : prev_channels)
 796                                 if (ch.pdch_ == pdch) {
 797                                         ch.id = id++;
 798                                         channels_.push_back(ch);
 799                                         ch_added = true;
 800                                         break;
 801                                 }
 802
 803                         if (!ch_added) {
 804                                 // Create new entry without a mapped signal
 805                                 data::DecodeChannel ch = {id++, 0, false, nullptr,
 806                                         QString::fromUtf8(pdch->name), QString::fromUtf8(pdch->desc),
 807                                         SRD_INITIAL_PIN_SAME_AS_SAMPLE0, decoder, pdch};
 808                                 channels_.push_back(ch);
 809                         }
 810                 }
 811
 812                 // Optional channels
 813                 for (l = srd_d->opt_channels; l; l = l->next) {
 814                         const struct srd_channel *const pdch = (struct srd_channel *)l->data;
 815                         bool ch_added = false;
 816
 817                         // Copy but update ID if this channel was in the list before
 818                         for (data::DecodeChannel& ch : prev_channels)
 819                                 if (ch.pdch_ == pdch) {
 820                                         ch.id = id++;
 821                                         channels_.push_back(ch);
 822                                         ch_added = true;
 823                                         break;
 824                                 }
 825
 826                         if (!ch_added) {
 827                                 // Create new entry without a mapped signal
 828                                 data::DecodeChannel ch = {id++, 0, true, nullptr,
 829                                         QString::fromUtf8(pdch->name), QString::fromUtf8(pdch->desc),
 830                                         SRD_INITIAL_PIN_SAME_AS_SAMPLE0, decoder, pdch};
 831                                 channels_.push_back(ch);
 832                         }
 833                 }
 834         }
 835
 836         // Invalidate the logic output data if the channel assignment changed
 837         if (prev_channels.size() != channels_.size()) {
 838                 // The number of channels changed, there's definitely a difference
 839                 logic_mux_data_invalid_ = true;
 840         } else {
 841                 // Same number but assignment may still differ, so compare all channels
 842                 for (size_t i = 0; i < channels_.size(); i++) {
 843                         const data::DecodeChannel& p_ch = prev_channels[i];
 844                         const data::DecodeChannel& ch = channels_[i];
 845
 846                         if ((p_ch.pdch_ != ch.pdch_) ||
 847                                 (p_ch.assigned_signal != ch.assigned_signal)) {
 848                                 logic_mux_data_invalid_ = true;
 849                                 break;
 850                         }
 851                 }
 852
 853         }
 854
 855         channels_updated();
 856 }
 857
 858 void DecodeSignal::commit_decoder_channels()
 859 {
 860         // Submit channel list to every decoder, containing only the relevant channels
 861         for (shared_ptr<decode::Decoder> dec : stack_) {
 862                 vector<data::DecodeChannel*> channel_list;
 863
 864                 for (data::DecodeChannel& ch : channels_)
 865                         if (ch.decoder_ == dec)
 866                                 channel_list.push_back(&ch);
 867
 868                 dec->set_channels(channel_list);
 869         }
 870
 871         // Channel bit IDs must be in sync with the channel's apperance in channels_
 872         int id = 0;
 873         for (data::DecodeChannel& ch : channels_)
 874                 if (ch.assigned_signal)
 875                         ch.bit_id = id++;
 876 }
 877
 878 void DecodeSignal::mux_logic_samples(uint32_t segment_id, const int64_t start, const int64_t end)
 879 {
 880         // Enforce end to be greater than start
 881         if (end <= start)
 882                 return;
 883
 884         // Fetch the channel segments and their data
 885         vector<shared_ptr<LogicSegment> > segments;
 886         vector<const uint8_t*> signal_data;
 887         vector<uint8_t> signal_in_bytepos;
 888         vector<uint8_t> signal_in_bitpos;
 889
 890         for (data::DecodeChannel& ch : channels_)
 891                 if (ch.assigned_signal) {
 892                         const shared_ptr<Logic> logic_data = ch.assigned_signal->logic_data();
 893
 894                         shared_ptr<LogicSegment> segment;
 895                         try {
 896                                 segment = logic_data->logic_segments().at(segment_id);
 897                         } catch (out_of_range&) {
 898                                 qDebug() << "Muxer error for" << name() << ":" << ch.assigned_signal->name() \
 899                                         << "has no logic segment" << segment_id;
 900                                 return;
 901                         }
 902                         segments.push_back(segment);
 903
 904                         uint8_t* data = new uint8_t[(end - start) * segment->unit_size()];
 905                         segment->get_samples(start, end, data);
 906                         signal_data.push_back(data);
 907
 908                         const int bitpos = ch.assigned_signal->logic_bit_index();
 909                         signal_in_bytepos.push_back(bitpos / 8);
 910                         signal_in_bitpos.push_back(bitpos % 8);
 911                 }
 912
 913
 914         shared_ptr<LogicSegment> output_segment;
 915         try {
 916                 output_segment = logic_mux_data_->logic_segments().at(segment_id);
 917         } catch (out_of_range&) {
 918                 qDebug() << "Muxer error for" << name() << ": no logic mux segment" \
 919                         << segment_id << "in mux_logic_samples(), mux segments size is" \
 920                         << logic_mux_data_->logic_segments().size();
 921                 return;
 922         }
 923
 924         // Perform the muxing of signal data into the output data
 925         uint8_t* output = new uint8_t[(end - start) * output_segment->unit_size()];
 926         unsigned int signal_count = signal_data.size();
 927
 928         for (int64_t sample_cnt = 0; !logic_mux_interrupt_ && (sample_cnt < (end - start));
 929                 sample_cnt++) {
 930
 931                 int bitpos = 0;
 932                 uint8_t bytepos = 0;
 933
 934                 const int out_sample_pos = sample_cnt * output_segment->unit_size();
 935                 for (unsigned int i = 0; i < output_segment->unit_size(); i++)
 936                         output[out_sample_pos + i] = 0;
 937
 938                 for (unsigned int i = 0; i < signal_count; i++) {
 939                         const int in_sample_pos = sample_cnt * segments[i]->unit_size();
 940                         const uint8_t in_sample = 1 &
 941                                 ((signal_data[i][in_sample_pos + signal_in_bytepos[i]]) >> (signal_in_bitpos[i]));
 942
 943                         const uint8_t out_sample = output[out_sample_pos + bytepos];
 944
 945                         output[out_sample_pos + bytepos] = out_sample | (in_sample << bitpos);
 946
 947                         bitpos++;
 948                         if (bitpos > 7) {
 949                                 bitpos = 0;
 950                                 bytepos++;
 951                         }
 952                 }
 953         }
 954
 955         output_segment->append_payload(output, (end - start) * output_segment->unit_size());
 956         delete[] output;
 957
 958         for (const uint8_t* data : signal_data)
 959                 delete[] data;
 960 }
 961
 962 void DecodeSignal::logic_mux_proc()
 963 {
 964         uint32_t segment_id = 0;
 965
 966         assert(logic_mux_data_);
 967
 968         // Create initial logic mux segment
 969         shared_ptr<LogicSegment> output_segment =
 970                 make_shared<LogicSegment>(*logic_mux_data_, segment_id,
 971                         logic_mux_unit_size_, 0);
 972         logic_mux_data_->push_segment(output_segment);
 973
 974         output_segment->set_samplerate(get_input_samplerate(0));
 975
 976         do {
 977                 const uint64_t input_sample_count = get_working_sample_count(segment_id);
 978                 const uint64_t output_sample_count = output_segment->get_sample_count();
 979
 980                 const uint64_t samples_to_process =
 981                         (input_sample_count > output_sample_count) ?
 982                         (input_sample_count - output_sample_count) : 0;
 983
 984                 // Process the samples if necessary...
 985                 if (samples_to_process > 0) {
 986                         const uint64_t unit_size = output_segment->unit_size();
 987                         const uint64_t chunk_sample_count = DecodeChunkLength / unit_size;
 988
 989                         uint64_t processed_samples = 0;
 990                         do {
 991                                 const uint64_t start_sample = output_sample_count + processed_samples;
 992                                 const uint64_t sample_count =
 993                                         min(samples_to_process - processed_samples,     chunk_sample_count);
 994
 995                                 mux_logic_samples(segment_id, start_sample, start_sample + sample_count);
 996                                 processed_samples += sample_count;
 997
 998                                 // ...and process the newly muxed logic data
 999                                 decode_input_cond_.notify_one();
1000                         } while (!logic_mux_interrupt_ && (processed_samples < samples_to_process));
1001                 }
1002
1003                 if (samples_to_process == 0) {
1004                         // TODO Optimize this by caching the input segment count and only
1005                         // querying it when the cached value was reached
1006                         if (segment_id < get_input_segment_count() - 1) {
1007                                 // Process next segment
1008                                 segment_id++;
1009
1010                                 output_segment =
1011                                         make_shared<LogicSegment>(*logic_mux_data_, segment_id,
1012                                                 logic_mux_unit_size_, 0);
1013                                 logic_mux_data_->push_segment(output_segment);
1014
1015                                 output_segment->set_samplerate(get_input_samplerate(segment_id));
1016
1017                         } else {
1018                                 // All segments have been processed
1019                                 logic_mux_data_invalid_ = false;
1020
1021                                 // Wait for more input
1022                                 unique_lock<mutex> logic_mux_lock(logic_mux_mutex_);
1023                                 logic_mux_cond_.wait(logic_mux_lock);
1024                         }
1025                 }
1026
1027         } while (!logic_mux_interrupt_);
1028 }
1029
1030 void DecodeSignal::decode_data(
1031         const int64_t abs_start_samplenum, const int64_t sample_count,
1032         const shared_ptr<LogicSegment> input_segment)
1033 {
1034         const int64_t unit_size = input_segment->unit_size();
1035         const int64_t chunk_sample_count = DecodeChunkLength / unit_size;
1036
1037         for (int64_t i = abs_start_samplenum;
1038                 error_message_.isEmpty() && !decode_interrupt_ &&
1039                         (i < (abs_start_samplenum + sample_count));
1040                 i += chunk_sample_count) {
1041
1042                 const int64_t chunk_end = min(i + chunk_sample_count,
1043                         abs_start_samplenum + sample_count);
1044
1045                 {
1046                         lock_guard<mutex> lock(output_mutex_);
1047                         // Update the sample count showing the samples including currently processed ones
1048                         segments_.at(current_segment_id_).samples_decoded_incl = chunk_end;
1049                 }
1050
1051                 int64_t data_size = (chunk_end - i) * unit_size;
1052                 uint8_t* chunk = new uint8_t[data_size];
1053                 input_segment->get_samples(i, chunk_end, chunk);
1054
1055                 if (srd_session_send(srd_session_, i, chunk_end, chunk,
1056                                 data_size, unit_size) != SRD_OK)
1057                         set_error_message(tr("Decoder reported an error"));
1058
1059                 delete[] chunk;
1060
1061                 {
1062                         lock_guard<mutex> lock(output_mutex_);
1063                         // Now that all samples are processed, the exclusive sample count catches up
1064                         segments_.at(current_segment_id_).samples_decoded_excl = chunk_end;
1065                 }
1066
1067                 // Notify the frontend that we processed some data and
1068                 // possibly have new annotations as well
1069                 new_annotations();
1070
1071                 if (decode_paused_) {
1072                         unique_lock<mutex> pause_wait_lock(decode_pause_mutex_);
1073                         decode_pause_cond_.wait(pause_wait_lock);
1074                 }
1075         }
1076 }
1077
1078 void DecodeSignal::decode_proc()
1079 {
1080         current_segment_id_ = 0;
1081
1082         // If there is no input data available yet, wait until it is or we're interrupted
1083         if (logic_mux_data_->logic_segments().size() == 0) {
1084                 unique_lock<mutex> input_wait_lock(input_mutex_);
1085                 decode_input_cond_.wait(input_wait_lock);
1086         }
1087
1088         if (decode_interrupt_)
1089                 return;
1090
1091         shared_ptr<LogicSegment> input_segment = logic_mux_data_->logic_segments().front();
1092         assert(input_segment);
1093
1094         // Create the initial segment and set its sample rate so that we can pass it to SRD
1095         create_decode_segment();
1096         segments_.at(current_segment_id_).samplerate = input_segment->samplerate();
1097         segments_.at(current_segment_id_).start_time = input_segment->start_time();
1098
1099         start_srd_session();
1100
1101         uint64_t sample_count = 0;
1102         uint64_t abs_start_samplenum = 0;
1103         do {
1104                 // Keep processing new samples until we exhaust the input data
1105                 do {
1106                         lock_guard<mutex> input_lock(input_mutex_);
1107                         sample_count = input_segment->get_sample_count() - abs_start_samplenum;
1108
1109                         if (sample_count > 0) {
1110                                 decode_data(abs_start_samplenum, sample_count, input_segment);
1111                                 abs_start_samplenum += sample_count;
1112                         }
1113                 } while (error_message_.isEmpty() && (sample_count > 0) && !decode_interrupt_);
1114
1115                 if (error_message_.isEmpty() && !decode_interrupt_ && sample_count == 0) {
1116                         if (current_segment_id_ < logic_mux_data_->logic_segments().size() - 1) {
1117                                 // Process next segment
1118                                 current_segment_id_++;
1119
1120                                 try {
1121                                         input_segment = logic_mux_data_->logic_segments().at(current_segment_id_);
1122                                 } catch (out_of_range&) {
1123                                         qDebug() << "Decode error for" << name() << ": no logic mux segment" \
1124                                                 << current_segment_id_ << "in decode_proc(), mux segments size is" \
1125                                                 << logic_mux_data_->logic_segments().size();
1126                                         return;
1127                                 }
1128                                 abs_start_samplenum = 0;
1129
1130                                 // Create the next segment and set its metadata
1131                                 create_decode_segment();
1132                                 segments_.at(current_segment_id_).samplerate = input_segment->samplerate();
1133                                 segments_.at(current_segment_id_).start_time = input_segment->start_time();
1134
1135                                 // Reset decoder state but keep the decoder stack intact
1136                                 terminate_srd_session();
1137                         } else {
1138                                 // All segments have been processed
1139                                 decode_finished();
1140
1141                                 // Wait for new input data or an interrupt was requested
1142                                 unique_lock<mutex> input_wait_lock(input_mutex_);
1143                                 decode_input_cond_.wait(input_wait_lock);
1144                         }
1145                 }
1146         } while (error_message_.isEmpty() && !decode_interrupt_);
1147
1148         // Potentially reap decoders when the application no longer is
1149         // interested in their (pending) results.
1150         if (decode_interrupt_)
1151                 terminate_srd_session();
1152 }
1153
1154 void DecodeSignal::start_srd_session()
1155 {
1156         // If there were stack changes, the session has been destroyed by now, so if
1157         // it hasn't been destroyed, we can just reset and re-use it
1158         if (srd_session_) {
1159                 // When a decoder stack was created before, re-use it
1160                 // for the next stream of input data, after terminating
1161                 // potentially still executing operations, and resetting
1162                 // internal state. Skip the rather expensive (teardown
1163                 // and) construction of another decoder stack.
1164
1165                 // TODO Reduce redundancy, use a common code path for
1166                 // the meta/start sequence?
1167                 terminate_srd_session();
1168
1169                 // Metadata is cleared also, so re-set it
1170                 uint64_t samplerate = 0;
1171                 if (segments_.size() > 0)
1172                         samplerate = segments_.at(current_segment_id_).samplerate;
1173                 if (samplerate)
1174                         srd_session_metadata_set(srd_session_, SRD_CONF_SAMPLERATE,
1175                                 g_variant_new_uint64(samplerate));
1176                 for (const shared_ptr<decode::Decoder>& dec : stack_)
1177                         dec->apply_all_options();
1178                 srd_session_start(srd_session_);
1179
1180                 return;
1181         }
1182
1183         // Create the session
1184         srd_session_new(&srd_session_);
1185         assert(srd_session_);
1186
1187         // Create the decoders
1188         srd_decoder_inst *prev_di = nullptr;
1189         for (const shared_ptr<decode::Decoder>& dec : stack_) {
1190                 srd_decoder_inst *const di = dec->create_decoder_inst(srd_session_);
1191
1192                 if (!di) {
1193                         set_error_message(tr("Failed to create decoder instance"));
1194                         srd_session_destroy(srd_session_);
1195                         srd_session_ = nullptr;
1196                         return;
1197                 }
1198
1199                 if (prev_di)
1200                         srd_inst_stack(srd_session_, prev_di, di);
1201
1202                 prev_di = di;
1203         }
1204
1205         // Start the session
1206         if (segments_.size() > 0)
1207                 srd_session_metadata_set(srd_session_, SRD_CONF_SAMPLERATE,
1208                         g_variant_new_uint64(segments_.at(current_segment_id_).samplerate));
1209
1210         srd_pd_output_callback_add(srd_session_, SRD_OUTPUT_ANN,
1211                 DecodeSignal::annotation_callback, this);
1212
1213         srd_pd_output_callback_add(srd_session_, SRD_OUTPUT_BINARY,
1214                 DecodeSignal::binary_callback, this);
1215
1216         srd_session_start(srd_session_);
1217
1218         // We just recreated the srd session, so all stack changes are applied now
1219         stack_config_changed_ = false;
1220 }
1221
1222 void DecodeSignal::terminate_srd_session()
1223 {
1224         // Call the "terminate and reset" routine for the decoder stack
1225         // (if available). This does not harm those stacks which already
1226         // have completed their operation, and reduces response time for
1227         // those stacks which still are processing data while the
1228         // application no longer wants them to.
1229         if (srd_session_) {
1230                 srd_session_terminate_reset(srd_session_);
1231
1232                 // Metadata is cleared also, so re-set it
1233                 uint64_t samplerate = 0;
1234                 if (segments_.size() > 0)
1235                         samplerate = segments_.at(current_segment_id_).samplerate;
1236                 if (samplerate)
1237                         srd_session_metadata_set(srd_session_, SRD_CONF_SAMPLERATE,
1238                                 g_variant_new_uint64(samplerate));
1239                 for (const shared_ptr<decode::Decoder>& dec : stack_)
1240                         dec->apply_all_options();
1241         }
1242 }
1243
1244 void DecodeSignal::stop_srd_session()
1245 {
1246         if (srd_session_) {
1247                 // Destroy the session
1248                 srd_session_destroy(srd_session_);
1249                 srd_session_ = nullptr;
1250
1251                 // Mark the decoder instances as non-existant since they were deleted
1252                 for (const shared_ptr<decode::Decoder>& dec : stack_)
1253                         dec->invalidate_decoder_inst();
1254         }
1255 }
1256
1257 void DecodeSignal::connect_input_notifiers()
1258 {
1259         // Disconnect the notification slot from the previous set of signals
1260         disconnect(this, SLOT(on_data_cleared()));
1261         disconnect(this, SLOT(on_data_received()));
1262
1263         // Connect the currently used signals to our slot
1264         for (data::DecodeChannel& ch : channels_) {
1265                 if (!ch.assigned_signal)
1266                         continue;
1267
1268                 const data::SignalBase *signal = ch.assigned_signal;
1269                 connect(signal, SIGNAL(samples_cleared()),
1270                         this, SLOT(on_data_cleared()));
1271                 connect(signal, SIGNAL(samples_added(uint64_t, uint64_t, uint64_t)),
1272                         this, SLOT(on_data_received()));
1273         }
1274 }
1275
1276 void DecodeSignal::create_decode_segment()
1277 {
1278         // Create annotation segment
1279         segments_.emplace_back(DecodeSegment());
1280
1281         // Add annotation classes
1282         for (const shared_ptr<decode::Decoder>& dec : stack_) {
1283                 assert(dec);
1284                 const srd_decoder *const decc = dec->decoder();
1285                 assert(dec->decoder());
1286
1287                 int row_index = 0;
1288                 // Add a row for the decoder if it doesn't have a row list
1289                 if (!decc->annotation_rows)
1290                         (segments_.back().annotation_rows)[Row(row_index++, decc)] =
1291                                 decode::RowData();
1292
1293                 // Add the decoder rows
1294                 for (const GSList *l = decc->annotation_rows; l; l = l->next) {
1295                         const srd_decoder_annotation_row *const ann_row =
1296                                 (srd_decoder_annotation_row *)l->data;
1297                         assert(ann_row);
1298
1299                         const Row row(row_index++, decc, ann_row);
1300
1301                         // Add a new empty row data object
1302                         (segments_.back().annotation_rows)[row] =
1303                                 decode::RowData();
1304                 }
1305         }
1306 }
1307
1308 void DecodeSignal::annotation_callback(srd_proto_data *pdata, void *decode_signal)
1309 {
1310         assert(pdata);
1311         assert(decode_signal);
1312
1313         DecodeSignal *const ds = (DecodeSignal*)decode_signal;
1314         assert(ds);
1315
1316         if (ds->decode_interrupt_)
1317                 return;
1318
1319         lock_guard<mutex> lock(ds->output_mutex_);
1320
1321         // Get the decoder and the annotation data
1322         assert(pdata->pdo);
1323         assert(pdata->pdo->di);
1324         const srd_decoder *const decc = pdata->pdo->di->decoder;
1325         assert(decc);
1326
1327         const srd_proto_data_annotation *const pda = (const srd_proto_data_annotation*)pdata->data;
1328         assert(pda);
1329
1330         // Find the row
1331         auto row_iter = ds->segments_.at(ds->current_segment_id_).annotation_rows.end();
1332
1333         // Try finding a better row match than the default by looking up the sub-row of this class
1334         const auto format = pda->ann_class;
1335         const auto r = ds->class_rows_.find(make_pair(decc, format));
1336         if (r != ds->class_rows_.end())
1337                 row_iter = ds->segments_.at(ds->current_segment_id_).annotation_rows.find((*r).second);
1338         else {
1339                 // Failing that, use the decoder as a key
1340                 row_iter = ds->segments_.at(ds->current_segment_id_).annotation_rows.find(Row(0, decc));
1341         }
1342
1343         if (row_iter == ds->segments_.at(ds->current_segment_id_).annotation_rows.end()) {
1344                 qDebug() << "Unexpected annotation: decoder = " << decc <<
1345                         ", format = " << format;
1346                 assert(false);
1347                 return;
1348         }
1349
1350         // Add the annotation
1351         (*row_iter).second.emplace_annotation(pdata, &((*row_iter).first));
1352 }
1353
1354 void DecodeSignal::binary_callback(srd_proto_data *pdata, void *decode_signal)
1355 {
1356         assert(pdata);
1357         assert(decode_signal);
1358
1359         DecodeSignal *const ds = (DecodeSignal*)decode_signal;
1360         assert(ds);
1361
1362         if (ds->decode_interrupt_)
1363                 return;
1364
1365         const srd_proto_data_binary *const pdb = (const srd_proto_data_binary*)pdata->data;
1366         assert(pdb);
1367
1368         DecodeSegment* segment = &(ds->segments_.at(ds->current_segment_id_));
1369
1370         segment->binary_data.emplace_back();
1371         DecodeBinaryData* bin_data = &(segment->binary_data.back());
1372
1373         bin_data->sample = pdata->start_sample;
1374         bin_data->data.reserve(pdb->size);
1375         memcpy(bin_data->data.data(), pdb->data, pdb->size);
1376
1377         ds->new_binary_data(ds->current_segment_id_);
1378 }
1379
1380 void DecodeSignal::on_capture_state_changed(int state)
1381 {
1382         // If a new acquisition was started, we need to start decoding from scratch
1383         if (state == Session::Running) {
1384                 logic_mux_data_invalid_ = true;
1385                 begin_decode();
1386         }
1387 }
1388
1389 void DecodeSignal::on_data_cleared()
1390 {
1391         reset_decode();
1392 }
1393
1394 void DecodeSignal::on_data_received()
1395 {
1396         // If we detected a lack of input data when trying to start decoding,
1397         // we have set an error message. Only try again if we now have data
1398         // to work with
1399         if ((!error_message_.isEmpty()) && (get_input_segment_count() == 0))
1400                 return;
1401
1402         if (!logic_mux_thread_.joinable())
1403                 begin_decode();
1404         else
1405                 logic_mux_cond_.notify_one();
1406 }
1407
1408 } // namespace data
1409 } // namespace pv