pv/data/signalbase.cpp

   1 /*
   2  * This file is part of the PulseView project.
   3  *
   4  * Copyright (C) 2012 Joel Holdsworth <joel@airwebreathe.org.uk>
   5  * Copyright (C) 2016 Soeren Apel <soeren@apelpie.net>
   6  *
   7  * This program is free software; you can redistribute it and/or modify
   8  * it under the terms of the GNU General Public License as published by
   9  * the Free Software Foundation; either version 2 of the License, or
  10  * (at your option) any later version.
  11  *
  12  * This program is distributed in the hope that it will be useful,
  13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15  * GNU General Public License for more details.
  16  *
  17  * You should have received a copy of the GNU General Public License
  18  * along with this program; if not, see <http://www.gnu.org/licenses/>.
  19  */
  20
  21 #include "analog.hpp"
  22 #include "analogsegment.hpp"
  23 #include "decode/row.hpp"
  24 #include "logic.hpp"
  25 #include "logicsegment.hpp"
  26 #include "signalbase.hpp"
  27 #include "signaldata.hpp"
  28
  29 #include <QDebug>
  30
  31 #include <extdef.h>
  32 #include <pv/session.hpp>
  33 #include <pv/binding/decoder.hpp>
  34
  35 using std::dynamic_pointer_cast;
  36 using std::make_shared;
  37 using std::out_of_range;
  38 using std::shared_ptr;
  39 using std::tie;
  40 using std::unique_lock;
  41
  42 namespace pv {
  43 namespace data {
  44
  45 const QColor SignalBase::AnalogSignalColors[8] =
  46 {
  47         QColor(0xC4, 0xA0, 0x00),       // Yellow   HSV:  49 / 100 / 77
  48         QColor(0x87, 0x20, 0x7A),       // Magenta  HSV: 308 /  70 / 53
  49         QColor(0x20, 0x4A, 0x87),       // Blue     HSV: 216 /  76 / 53
  50         QColor(0x4E, 0x9A, 0x06),       // Green    HSV:  91 /  96 / 60
  51         QColor(0xBF, 0x6E, 0x00),       // Orange   HSV:  35 / 100 / 75
  52         QColor(0x5E, 0x20, 0x80),       // Purple   HSV: 280 /  75 / 50
  53         QColor(0x20, 0x80, 0x7A),       // Turqoise HSV: 177 /  75 / 50
  54         QColor(0x80, 0x20, 0x24)        // Red      HSV: 358 /  75 / 50
  55 };
  56
  57 const QColor SignalBase::LogicSignalColors[10] =
  58 {
  59         QColor(0x16, 0x19, 0x1A),       // Black
  60         QColor(0x8F, 0x52, 0x02),       // Brown
  61         QColor(0xCC, 0x00, 0x00),       // Red
  62         QColor(0xF5, 0x79, 0x00),       // Orange
  63         QColor(0xED, 0xD4, 0x00),       // Yellow
  64         QColor(0x73, 0xD2, 0x16),       // Green
  65         QColor(0x34, 0x65, 0xA4),       // Blue
  66         QColor(0x75, 0x50, 0x7B),       // Violet
  67         QColor(0x88, 0x8A, 0x85),       // Grey
  68         QColor(0xEE, 0xEE, 0xEC),       // White
  69 };
  70
  71
  72 const int SignalBase::ColorBGAlpha = 8 * 256 / 100;
  73 const uint64_t SignalBase::ConversionBlockSize = 4096;
  74 const uint32_t SignalBase::ConversionDelay = 1000;  // 1 second
  75
  76
  77 SignalGroup::SignalGroup(const QString& name)
  78 {
  79         name_ = name;
  80 }
  81
  82 void SignalGroup::append_signal(shared_ptr<SignalBase> signal)
  83 {
  84         if (!signal)
  85                 return;
  86
  87         signals_.push_back(signal);
  88         signal->set_group(this);
  89 }
  90
  91 void SignalGroup::remove_signal(shared_ptr<SignalBase> signal)
  92 {
  93         if (!signal)
  94                 return;
  95
  96         signals_.erase(std::remove_if(signals_.begin(), signals_.end(),
  97                 [&](shared_ptr<SignalBase> s) { return s == signal; }),
  98                 signals_.end());
  99 }
 100
 101 deque<shared_ptr<SignalBase>> SignalGroup::signals() const
 102 {
 103         return signals_;
 104 }
 105
 106 void SignalGroup::clear()
 107 {
 108         for (shared_ptr<SignalBase> sb : signals_)
 109                 sb->set_group(nullptr);
 110
 111         signals_.clear();
 112 }
 113
 114 const QString SignalGroup::name() const
 115 {
 116         return name_;
 117 }
 118
 119
 120 SignalBase::SignalBase(shared_ptr<sigrok::Channel> channel, ChannelType channel_type) :
 121         channel_(channel),
 122         channel_type_(channel_type),
 123         group_(nullptr),
 124         conversion_type_(NoConversion),
 125         min_value_(0),
 126         max_value_(0),
 127         error_message_("")
 128 {
 129         if (channel_) {
 130                 internal_name_ = QString::fromStdString(channel_->name());
 131                 index_ = channel_->index();
 132         }
 133
 134         connect(&delayed_conversion_starter_, SIGNAL(timeout()),
 135                 this, SLOT(on_delayed_conversion_start()));
 136         delayed_conversion_starter_.setSingleShot(true);
 137         delayed_conversion_starter_.setInterval(ConversionDelay);
 138
 139         // Only logic and analog SR channels can have their colors auto-set
 140         // because for them, we have an index that can be used
 141         if (channel_type == LogicChannel)
 142                 set_color(LogicSignalColors[index() % countof(LogicSignalColors)]);
 143         else if (channel_type == AnalogChannel)
 144                 set_color(AnalogSignalColors[index() % countof(AnalogSignalColors)]);
 145 }
 146
 147 SignalBase::~SignalBase()
 148 {
 149         stop_conversion();
 150 }
 151
 152 shared_ptr<sigrok::Channel> SignalBase::channel() const
 153 {
 154         return channel_;
 155 }
 156
 157 bool SignalBase::is_generated() const
 158 {
 159         // Only signals associated with a device have a corresponding sigrok channel
 160         return channel_ == nullptr;
 161 }
 162
 163 bool SignalBase::enabled() const
 164 {
 165         return (channel_) ? channel_->enabled() : true;
 166 }
 167
 168 void SignalBase::set_enabled(bool value)
 169 {
 170         if (channel_) {
 171                 channel_->set_enabled(value);
 172                 enabled_changed(value);
 173         }
 174 }
 175
 176 SignalBase::ChannelType SignalBase::type() const
 177 {
 178         return channel_type_;
 179 }
 180
 181 unsigned int SignalBase::index() const
 182 {
 183         return index_;
 184 }
 185
 186 void SignalBase::set_index(unsigned int index)
 187 {
 188         index_ = index;
 189 }
 190
 191 unsigned int SignalBase::logic_bit_index() const
 192 {
 193         if (channel_type_ == LogicChannel)
 194                 return index_;
 195         else
 196                 return 0;
 197 }
 198
 199 void SignalBase::set_group(SignalGroup* group)
 200 {
 201         group_ = group;
 202 }
 203
 204 SignalGroup* SignalBase::group() const
 205 {
 206         return group_;
 207 }
 208
 209 QString SignalBase::name() const
 210 {
 211         return (channel_) ? QString::fromStdString(channel_->name()) : name_;
 212 }
 213
 214 QString SignalBase::internal_name() const
 215 {
 216         return internal_name_;
 217 }
 218
 219 void SignalBase::set_internal_name(QString internal_name)
 220 {
 221         internal_name_ = internal_name;
 222 }
 223
 224 QString SignalBase::display_name() const
 225 {
 226         if ((name() != internal_name_) && (!internal_name_.isEmpty()))
 227                 return name() + " (" + internal_name_ + ")";
 228         else
 229                 return name();
 230 }
 231
 232 void SignalBase::set_name(QString name)
 233 {
 234         if (channel_)
 235                 channel_->set_name(name.toUtf8().constData());
 236
 237         name_ = name;
 238
 239         name_changed(name);
 240 }
 241
 242 QColor SignalBase::color() const
 243 {
 244         return color_;
 245 }
 246
 247 void SignalBase::set_color(QColor color)
 248 {
 249         color_ = color;
 250
 251         bgcolor_ = color;
 252         bgcolor_.setAlpha(ColorBGAlpha);
 253
 254         color_changed(color);
 255 }
 256
 257 QColor SignalBase::bgcolor() const
 258 {
 259         return bgcolor_;
 260 }
 261
 262 QString SignalBase::get_error_message() const
 263 {
 264         return error_message_;
 265 }
 266
 267 void SignalBase::set_data(shared_ptr<pv::data::SignalData> data)
 268 {
 269         if (data_) {
 270                 disconnect(data.get(), SIGNAL(samples_cleared()),
 271                         this, SLOT(on_samples_cleared()));
 272                 disconnect(data.get(), SIGNAL(samples_added(shared_ptr<Segment>, uint64_t, uint64_t)),
 273                         this, SLOT(on_samples_added(shared_ptr<Segment>, uint64_t, uint64_t)));
 274
 275                 shared_ptr<Analog> analog = analog_data();
 276                 if (analog)
 277                         disconnect(analog.get(), SIGNAL(min_max_changed(float, float)),
 278                                 this, SLOT(on_min_max_changed(float, float)));
 279         }
 280
 281         data_ = data;
 282
 283         if (data_) {
 284                 connect(data.get(), SIGNAL(samples_cleared()),
 285                         this, SLOT(on_samples_cleared()));
 286                 connect(data.get(), SIGNAL(samples_added(SharedPtrToSegment, uint64_t, uint64_t)),
 287                         this, SLOT(on_samples_added(SharedPtrToSegment, uint64_t, uint64_t)));
 288
 289                 shared_ptr<Analog> analog = analog_data();
 290                 if (analog)
 291                         connect(analog.get(), SIGNAL(min_max_changed(float, float)),
 292                                 this, SLOT(on_min_max_changed(float, float)));
 293         }
 294 }
 295
 296 void SignalBase::clear_sample_data()
 297 {
 298         if (analog_data())
 299                 analog_data()->clear();
 300
 301         if (logic_data())
 302                 logic_data()->clear();
 303 }
 304
 305 shared_ptr<data::Analog> SignalBase::analog_data() const
 306 {
 307         return dynamic_pointer_cast<Analog>(data_);
 308 }
 309
 310 shared_ptr<data::Logic> SignalBase::logic_data() const
 311 {
 312         shared_ptr<Logic> result = dynamic_pointer_cast<Logic>(data_);
 313
 314         if (((conversion_type_ == A2LConversionByThreshold) ||
 315                 (conversion_type_ == A2LConversionBySchmittTrigger)))
 316                 result = dynamic_pointer_cast<Logic>(converted_data_);
 317
 318         return result;
 319 }
 320
 321 bool SignalBase::segment_is_complete(uint32_t segment_id) const
 322 {
 323         bool result = true;
 324
 325         shared_ptr<Analog> adata = analog_data();
 326         if (adata)
 327         {
 328                 auto segments = adata->analog_segments();
 329                 try {
 330                         result = segments.at(segment_id)->is_complete();
 331                 } catch (out_of_range&) {
 332                         // Do nothing
 333                 }
 334         } else {
 335                 shared_ptr<Logic> ldata = logic_data();
 336                 if (ldata) {
 337                         shared_ptr<Logic> data = dynamic_pointer_cast<Logic>(data_);
 338                         auto segments = data->logic_segments();
 339                         try {
 340                                 result = segments.at(segment_id)->is_complete();
 341                         } catch (out_of_range&) {
 342                                 // Do nothing
 343                         }
 344                 }
 345         }
 346
 347         return result;
 348 }
 349
 350 bool SignalBase::has_samples() const
 351 {
 352         bool result = false;
 353
 354         shared_ptr<Analog> adata = analog_data();
 355         if (adata)
 356         {
 357                 auto segments = adata->analog_segments();
 358                 if ((segments.size() > 0) && (segments.front()->get_sample_count() > 0))
 359                         result = true;
 360         } else {
 361                 shared_ptr<Logic> ldata = logic_data();
 362                 if (ldata) {
 363                         auto segments = ldata->logic_segments();
 364                         if ((segments.size() > 0) && (segments.front()->get_sample_count() > 0))
 365                                 result = true;
 366                 }
 367         }
 368
 369         return result;
 370 }
 371
 372 double SignalBase::get_samplerate() const
 373 {
 374         shared_ptr<Analog> adata = analog_data();
 375         if (adata)
 376                 return adata->get_samplerate();
 377         else {
 378                 shared_ptr<Logic> ldata = logic_data();
 379                 if (ldata)
 380                         return ldata->get_samplerate();
 381         }
 382
 383         // Default samplerate is 1 Hz
 384         return 1.0;
 385 }
 386
 387 SignalBase::ConversionType SignalBase::get_conversion_type() const
 388 {
 389         return conversion_type_;
 390 }
 391
 392 void SignalBase::set_conversion_type(ConversionType t)
 393 {
 394         if (conversion_type_ != NoConversion) {
 395                 stop_conversion();
 396
 397                 // Discard converted data
 398                 converted_data_.reset();
 399                 samples_cleared();
 400         }
 401
 402         conversion_type_ = t;
 403
 404         // Re-create an empty container
 405         // so that the signal is recognized as providing logic data
 406         // and thus can be assigned to a decoder
 407         if (conversion_is_a2l())
 408                 if (!converted_data_)
 409                         converted_data_ = make_shared<Logic>(1);  // Contains only one channel
 410
 411         start_conversion();
 412
 413         conversion_type_changed(t);
 414 }
 415
 416 map<QString, QVariant> SignalBase::get_conversion_options() const
 417 {
 418         return conversion_options_;
 419 }
 420
 421 bool SignalBase::set_conversion_option(QString key, QVariant value)
 422 {
 423         QVariant old_value;
 424
 425         auto key_iter = conversion_options_.find(key);
 426         if (key_iter != conversion_options_.end())
 427                 old_value = key_iter->second;
 428
 429         conversion_options_[key] = value;
 430
 431         return (value != old_value);
 432 }
 433
 434 vector<double> SignalBase::get_conversion_thresholds(const ConversionType t,
 435         const bool always_custom) const
 436 {
 437         vector<double> result;
 438         ConversionType conv_type = t;
 439         ConversionPreset preset;
 440
 441         // Use currently active conversion if no conversion type was supplied
 442         if (conv_type == NoConversion)
 443                 conv_type = conversion_type_;
 444
 445         if (always_custom)
 446                 preset = NoPreset;
 447         else
 448                 preset = get_current_conversion_preset();
 449
 450         if (conv_type == A2LConversionByThreshold) {
 451                 double thr = 0;
 452
 453                 if (preset == NoPreset) {
 454                         auto thr_iter = conversion_options_.find("threshold_value");
 455                         if (thr_iter != conversion_options_.end())
 456                                 thr = (thr_iter->second).toDouble();
 457                 }
 458
 459                 if (preset == DynamicPreset)
 460                         thr = (min_value_ + max_value_) * 0.5;  // middle between min and max
 461
 462                 if ((int)preset == 1) thr = 0.9;
 463                 if ((int)preset == 2) thr = 1.8;
 464                 if ((int)preset == 3) thr = 2.5;
 465                 if ((int)preset == 4) thr = 1.5;
 466
 467                 result.push_back(thr);
 468         }
 469
 470         if (conv_type == A2LConversionBySchmittTrigger) {
 471                 double thr_lo = 0, thr_hi = 0;
 472
 473                 if (preset == NoPreset) {
 474                         auto thr_lo_iter = conversion_options_.find("threshold_value_low");
 475                         if (thr_lo_iter != conversion_options_.end())
 476                                 thr_lo = (thr_lo_iter->second).toDouble();
 477
 478                         auto thr_hi_iter = conversion_options_.find("threshold_value_high");
 479                         if (thr_hi_iter != conversion_options_.end())
 480                                 thr_hi = (thr_hi_iter->second).toDouble();
 481                 }
 482
 483                 if (preset == DynamicPreset) {
 484                         const double amplitude = max_value_ - min_value_;
 485                         const double center = min_value_ + (amplitude / 2);
 486                         thr_lo = center - (amplitude * 0.15);  // 15% margin
 487                         thr_hi = center + (amplitude * 0.15);  // 15% margin
 488                 }
 489
 490                 if ((int)preset == 1) { thr_lo = 0.3; thr_hi = 1.2; }
 491                 if ((int)preset == 2) { thr_lo = 0.7; thr_hi = 2.5; }
 492                 if ((int)preset == 3) { thr_lo = 1.3; thr_hi = 3.7; }
 493                 if ((int)preset == 4) { thr_lo = 0.8; thr_hi = 2.0; }
 494
 495                 result.push_back(thr_lo);
 496                 result.push_back(thr_hi);
 497         }
 498
 499         return result;
 500 }
 501
 502 vector< pair<QString, int> > SignalBase::get_conversion_presets() const
 503 {
 504         vector< pair<QString, int> > presets;
 505
 506         if (conversion_type_ == A2LConversionByThreshold) {
 507                 // Source: http://www.interfacebus.com/voltage_threshold.html
 508                 presets.emplace_back(tr("Signal average"), 0);
 509                 presets.emplace_back(tr("0.9V (for 1.8V CMOS)"), 1);
 510                 presets.emplace_back(tr("1.8V (for 3.3V CMOS)"), 2);
 511                 presets.emplace_back(tr("2.5V (for 5.0V CMOS)"), 3);
 512                 presets.emplace_back(tr("1.5V (for TTL)"), 4);
 513         }
 514
 515         if (conversion_type_ == A2LConversionBySchmittTrigger) {
 516                 // Source: http://www.interfacebus.com/voltage_threshold.html
 517                 presets.emplace_back(tr("Signal average +/- 15%"), 0);
 518                 presets.emplace_back(tr("0.3V/1.2V (for 1.8V CMOS)"), 1);
 519                 presets.emplace_back(tr("0.7V/2.5V (for 3.3V CMOS)"), 2);
 520                 presets.emplace_back(tr("1.3V/3.7V (for 5.0V CMOS)"), 3);
 521                 presets.emplace_back(tr("0.8V/2.0V (for TTL)"), 4);
 522         }
 523
 524         return presets;
 525 }
 526
 527 SignalBase::ConversionPreset SignalBase::get_current_conversion_preset() const
 528 {
 529         auto preset = conversion_options_.find("preset");
 530         if (preset != conversion_options_.end())
 531                 return (ConversionPreset)((preset->second).toInt());
 532
 533         return DynamicPreset;
 534 }
 535
 536 void SignalBase::set_conversion_preset(ConversionPreset id)
 537 {
 538         conversion_options_["preset"] = (int)id;
 539 }
 540
 541 #ifdef ENABLE_DECODE
 542 bool SignalBase::is_decode_signal() const
 543 {
 544         return (channel_type_ == DecodeChannel);
 545 }
 546 #endif
 547
 548 void SignalBase::save_settings(QSettings &settings) const
 549 {
 550         settings.setValue("name", name());
 551         settings.setValue("enabled", enabled());
 552         settings.setValue("color", color().rgba());
 553         settings.setValue("conversion_type", (int)conversion_type_);
 554
 555         settings.setValue("conv_options", (int)(conversion_options_.size()));
 556         int i = 0;
 557         for (auto& kvp : conversion_options_) {
 558                 settings.setValue(QString("conv_option%1_key").arg(i), kvp.first);
 559                 settings.setValue(QString("conv_option%1_value").arg(i), kvp.second);
 560                 i++;
 561         }
 562 }
 563
 564 void SignalBase::restore_settings(QSettings &settings)
 565 {
 566         if (settings.contains("name"))
 567                 set_name(settings.value("name").toString());
 568
 569         if (settings.contains("enabled"))
 570                 set_enabled(settings.value("enabled").toBool());
 571
 572         if (settings.contains("color")) {
 573                 QVariant value = settings.value("color");
 574
 575                 // Workaround for Qt QColor serialization bug on OSX
 576                 if ((QMetaType::Type)(value.type()) == QMetaType::QColor)
 577                         set_color(value.value<QColor>());
 578                 else
 579                         set_color(QColor::fromRgba(value.value<uint32_t>()));
 580
 581                 // A color with an alpha value of 0 makes the signal marker invisible
 582                 if (color() == QColor(0, 0, 0, 0))
 583                         set_color(Qt::gray);
 584         }
 585
 586         if (settings.contains("conversion_type"))
 587                 set_conversion_type((ConversionType)settings.value("conversion_type").toInt());
 588
 589         int conv_options = 0;
 590         if (settings.contains("conv_options"))
 591                 conv_options = settings.value("conv_options").toInt();
 592
 593         if (conv_options)
 594                 for (int i = 0; i < conv_options; i++) {
 595                         const QString key_id = QString("conv_option%1_key").arg(i);
 596                         const QString value_id = QString("conv_option%1_value").arg(i);
 597
 598                         if (settings.contains(key_id) && settings.contains(value_id))
 599                                 conversion_options_[settings.value(key_id).toString()] =
 600                                         settings.value(value_id);
 601                 }
 602 }
 603
 604 bool SignalBase::conversion_is_a2l() const
 605 {
 606         return (((conversion_type_ == A2LConversionByThreshold) ||
 607                 (conversion_type_ == A2LConversionBySchmittTrigger)));
 608 }
 609
 610 void SignalBase::convert_single_segment_range(shared_ptr<AnalogSegment> asegment,
 611         shared_ptr<LogicSegment> lsegment, uint64_t start_sample, uint64_t end_sample)
 612 {
 613         if (end_sample > start_sample) {
 614                 tie(min_value_, max_value_) = asegment->get_min_max();
 615
 616                 // Create sigrok::Analog instance
 617                 float *asamples = new float[ConversionBlockSize];
 618                 assert(asamples);
 619                 uint8_t *lsamples = new uint8_t[ConversionBlockSize];
 620                 assert(lsamples);
 621
 622                 vector<shared_ptr<sigrok::Channel> > channels;
 623                 if (channel_)
 624                         channels.push_back(channel_);
 625
 626                 vector<const sigrok::QuantityFlag*> mq_flags;
 627                 const sigrok::Quantity * const mq = sigrok::Quantity::VOLTAGE;
 628                 const sigrok::Unit * const unit = sigrok::Unit::VOLT;
 629
 630                 shared_ptr<sigrok::Packet> packet =
 631                         Session::sr_context->create_analog_packet(channels,
 632                         asamples, ConversionBlockSize, mq, unit, mq_flags);
 633
 634                 shared_ptr<sigrok::Analog> analog =
 635                         dynamic_pointer_cast<sigrok::Analog>(packet->payload());
 636
 637                 // Convert
 638                 uint64_t i = start_sample;
 639
 640                 if (conversion_type_ == A2LConversionByThreshold) {
 641                         const double threshold = get_conversion_thresholds()[0];
 642
 643                         // Convert as many sample blocks as we can
 644                         while ((end_sample - i) > ConversionBlockSize) {
 645                                 asegment->get_samples(i, i + ConversionBlockSize, asamples);
 646
 647                                 shared_ptr<sigrok::Logic> logic =
 648                                         analog->get_logic_via_threshold(threshold, lsamples);
 649
 650                                 lsegment->append_payload(logic->data_pointer(), logic->data_length());
 651                                 samples_added(lsegment->segment_id(), i, i + ConversionBlockSize);
 652                                 i += ConversionBlockSize;
 653                         }
 654
 655                         // Re-create sigrok::Analog and convert remaining samples
 656                         packet = Session::sr_context->create_analog_packet(channels,
 657                                 asamples, end_sample - i, mq, unit, mq_flags);
 658
 659                         analog = dynamic_pointer_cast<sigrok::Analog>(packet->payload());
 660
 661                         asegment->get_samples(i, end_sample, asamples);
 662                         shared_ptr<sigrok::Logic> logic =
 663                                 analog->get_logic_via_threshold(threshold, lsamples);
 664                         lsegment->append_payload(logic->data_pointer(), logic->data_length());
 665                         samples_added(lsegment->segment_id(), i, end_sample);
 666                 }
 667
 668                 if (conversion_type_ == A2LConversionBySchmittTrigger) {
 669                         const vector<double> thresholds = get_conversion_thresholds();
 670                         const double lo_thr = thresholds[0];
 671                         const double hi_thr = thresholds[1];
 672
 673                         uint8_t state = 0;  // TODO Use value of logic sample n-1 instead of 0
 674
 675                         // Convert as many sample blocks as we can
 676                         while ((end_sample - i) > ConversionBlockSize) {
 677                                 asegment->get_samples(i, i + ConversionBlockSize, asamples);
 678
 679                                 shared_ptr<sigrok::Logic> logic =
 680                                         analog->get_logic_via_schmitt_trigger(lo_thr, hi_thr,
 681                                                 &state, lsamples);
 682
 683                                 lsegment->append_payload(logic->data_pointer(), logic->data_length());
 684                                 samples_added(lsegment->segment_id(), i, i + ConversionBlockSize);
 685
 686                                 i += ConversionBlockSize;
 687                         }
 688
 689                         // Re-create sigrok::Analog and convert remaining samples
 690                         packet = Session::sr_context->create_analog_packet(channels,
 691                                 asamples, end_sample - i, mq, unit, mq_flags);
 692
 693                         analog = dynamic_pointer_cast<sigrok::Analog>(packet->payload());
 694
 695                         asegment->get_samples(i, end_sample, asamples);
 696                         shared_ptr<sigrok::Logic> logic =
 697                                 analog->get_logic_via_schmitt_trigger(lo_thr, hi_thr,
 698                                         &state, lsamples);
 699                         lsegment->append_payload(logic->data_pointer(), logic->data_length());
 700                         samples_added(lsegment->segment_id(), i, end_sample);
 701                 }
 702
 703                 // If acquisition is ongoing, start-/endsample may have changed
 704                 end_sample = asegment->get_sample_count();
 705
 706                 delete[] lsamples;
 707                 delete[] asamples;
 708         }
 709 }
 710
 711 void SignalBase::convert_single_segment(shared_ptr<AnalogSegment> asegment,
 712         shared_ptr<LogicSegment> lsegment)
 713 {
 714         uint64_t start_sample, end_sample, old_end_sample;
 715         start_sample = end_sample = 0;
 716         bool complete_state, old_complete_state;
 717
 718         start_sample = lsegment->get_sample_count();
 719         end_sample = asegment->get_sample_count();
 720         complete_state = asegment->is_complete();
 721
 722         // Don't do anything if the segment is still being filled and the sample count is too small
 723         if ((!complete_state) && (end_sample - start_sample < ConversionBlockSize))
 724                 return;
 725
 726         do {
 727                 convert_single_segment_range(asegment, lsegment, start_sample, end_sample);
 728
 729                 old_end_sample = end_sample;
 730                 old_complete_state = complete_state;
 731
 732                 start_sample = lsegment->get_sample_count();
 733                 end_sample = asegment->get_sample_count();
 734                 complete_state = asegment->is_complete();
 735
 736                 // If the segment has been incomplete when we were called and has been
 737                 // completed in the meanwhile, we convert the remaining samples as well.
 738                 // Also, if a sufficient number of samples was added in the meanwhile,
 739                 // we do another round of sample conversion.
 740         } while ((complete_state != old_complete_state) ||
 741                 (end_sample - old_end_sample >= ConversionBlockSize));
 742 }
 743
 744 void SignalBase::conversion_thread_proc()
 745 {
 746         shared_ptr<Analog> analog_data;
 747
 748         if (conversion_is_a2l()) {
 749                 analog_data = dynamic_pointer_cast<Analog>(data_);
 750
 751                 if (analog_data->analog_segments().size() == 0) {
 752                         unique_lock<mutex> input_lock(conversion_input_mutex_);
 753                         conversion_input_cond_.wait(input_lock);
 754                 }
 755
 756         } else
 757                 // Currently, we only handle A2L conversions
 758                 return;
 759
 760         // If we had to wait for input data, we may have been notified to terminate
 761         if (conversion_interrupt_)
 762                 return;
 763
 764         uint32_t segment_id = 0;
 765
 766         shared_ptr<AnalogSegment> asegment = analog_data->analog_segments().front();
 767         assert(asegment);
 768
 769         const shared_ptr<Logic> logic_data = dynamic_pointer_cast<Logic>(converted_data_);
 770         assert(logic_data);
 771
 772         // Create the initial logic data segment if needed
 773         if (logic_data->logic_segments().size() == 0) {
 774                 shared_ptr<LogicSegment> new_segment =
 775                         make_shared<LogicSegment>(*logic_data.get(), 0, 1, asegment->samplerate());
 776                 logic_data->push_segment(new_segment);
 777         }
 778
 779         shared_ptr<LogicSegment> lsegment = logic_data->logic_segments().front();
 780         assert(lsegment);
 781
 782         do {
 783                 convert_single_segment(asegment, lsegment);
 784
 785                 // Only advance to next segment if the current input segment is complete
 786                 if (asegment->is_complete() &&
 787                         analog_data->analog_segments().size() > logic_data->logic_segments().size()) {
 788
 789                         // There are more segments to process
 790                         segment_id++;
 791
 792                         try {
 793                                 asegment = analog_data->analog_segments().at(segment_id);
 794                         } catch (out_of_range&) {
 795                                 qDebug() << "Conversion error for" << name() << ": no analog segment" \
 796                                         << segment_id << ", segments size is" << analog_data->analog_segments().size();
 797                                 return;
 798                         }
 799
 800                         shared_ptr<LogicSegment> new_segment = make_shared<LogicSegment>(
 801                                 *logic_data.get(), segment_id, 1, asegment->samplerate());
 802                         logic_data->push_segment(new_segment);
 803
 804                         lsegment = logic_data->logic_segments().back();
 805                 }
 806
 807                 // No more samples/segments to process, wait for data or interrupt
 808                 if (!conversion_interrupt_) {
 809                         unique_lock<mutex> input_lock(conversion_input_mutex_);
 810                         conversion_input_cond_.wait(input_lock);
 811                 }
 812         } while (!conversion_interrupt_);
 813 }
 814
 815 void SignalBase::start_conversion(bool delayed_start)
 816 {
 817         if (delayed_start) {
 818                 delayed_conversion_starter_.start();
 819                 return;
 820         }
 821
 822         stop_conversion();
 823
 824         if (converted_data_)
 825                 converted_data_->clear();
 826
 827         samples_cleared();
 828
 829         conversion_interrupt_ = false;
 830         conversion_thread_ = std::thread(&SignalBase::conversion_thread_proc, this);
 831 }
 832
 833 void SignalBase::set_error_message(QString msg)
 834 {
 835         error_message_ = msg;
 836         // TODO Emulate noquote()
 837         qDebug().nospace() << name() << ": " << msg;
 838
 839         error_message_changed(msg);
 840 }
 841
 842 void SignalBase::stop_conversion()
 843 {
 844         // Stop conversion so we can restart it from the beginning
 845         conversion_interrupt_ = true;
 846         conversion_input_cond_.notify_one();
 847         if (conversion_thread_.joinable())
 848                 conversion_thread_.join();
 849 }
 850
 851 void SignalBase::on_samples_cleared()
 852 {
 853         if (converted_data_)
 854                 converted_data_->clear();
 855
 856         samples_cleared();
 857 }
 858
 859 void SignalBase::on_samples_added(SharedPtrToSegment segment, uint64_t start_sample,
 860         uint64_t end_sample)
 861 {
 862         if (conversion_type_ != NoConversion) {
 863                 if (conversion_thread_.joinable()) {
 864                         // Notify the conversion thread since it's running
 865                         conversion_input_cond_.notify_one();
 866                 } else {
 867                         // Start the conversion thread unless the delay timer is running
 868                         if (!delayed_conversion_starter_.isActive())
 869                                 start_conversion();
 870                 }
 871         }
 872
 873         samples_added(segment->segment_id(), start_sample, end_sample);
 874 }
 875
 876 void SignalBase::on_min_max_changed(float min, float max)
 877 {
 878         // Restart conversion if one is enabled and uses a calculated threshold
 879         if ((conversion_type_ != NoConversion) &&
 880                 (get_current_conversion_preset() == DynamicPreset))
 881                 start_conversion(true);
 882
 883         min_max_changed(min, max);
 884 }
 885
 886 void SignalBase::on_capture_state_changed(int state)
 887 {
 888         if (state == Session::Running) {
 889                 // Restart conversion if one is enabled
 890                 if (conversion_type_ != NoConversion)
 891                         start_conversion();
 892         }
 893 }
 894
 895 void SignalBase::on_delayed_conversion_start()
 896 {
 897         start_conversion();
 898 }
 899
 900 } // namespace data
 901 } // namespace pv