Application::print_version_info(): Minor output whitespace fixes.
[pulseview.git] / 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 <pv/binding/decoder.hpp>
32 #include <pv/session.hpp>
33
34 using std::dynamic_pointer_cast;
35 using std::make_shared;
36 using std::out_of_range;
37 using std::shared_ptr;
38 using std::tie;
39 using std::unique_lock;
40
41 namespace pv {
42 namespace data {
43
44 const int SignalBase::ColorBGAlpha = 8 * 256 / 100;
45 const uint64_t SignalBase::ConversionBlockSize = 4096;
46 const uint32_t SignalBase::ConversionDelay = 1000;  // 1 second
47
48 SignalBase::SignalBase(shared_ptr<sigrok::Channel> channel, ChannelType channel_type) :
49         channel_(channel),
50         channel_type_(channel_type),
51         conversion_type_(NoConversion),
52         min_value_(0),
53         max_value_(0)
54 {
55         if (channel_)
56                 internal_name_ = QString::fromStdString(channel_->name());
57
58         connect(&delayed_conversion_starter_, SIGNAL(timeout()),
59                 this, SLOT(on_delayed_conversion_start()));
60         delayed_conversion_starter_.setSingleShot(true);
61         delayed_conversion_starter_.setInterval(ConversionDelay);
62 }
63
64 SignalBase::~SignalBase()
65 {
66         stop_conversion();
67 }
68
69 shared_ptr<sigrok::Channel> SignalBase::channel() const
70 {
71         return channel_;
72 }
73
74 QString SignalBase::name() const
75 {
76         return (channel_) ? QString::fromStdString(channel_->name()) : name_;
77 }
78
79 QString SignalBase::internal_name() const
80 {
81         return internal_name_;
82 }
83
84 QString SignalBase::display_name() const
85 {
86         if (name() != internal_name_)
87                 return name() + " (" + internal_name_ + ")";
88         else
89                 return name();
90 }
91
92 void SignalBase::set_name(QString name)
93 {
94         if (channel_)
95                 channel_->set_name(name.toUtf8().constData());
96
97         name_ = name;
98
99         name_changed(name);
100 }
101
102 bool SignalBase::enabled() const
103 {
104         return (channel_) ? channel_->enabled() : true;
105 }
106
107 void SignalBase::set_enabled(bool value)
108 {
109         if (channel_) {
110                 channel_->set_enabled(value);
111                 enabled_changed(value);
112         }
113 }
114
115 SignalBase::ChannelType SignalBase::type() const
116 {
117         return channel_type_;
118 }
119
120 unsigned int SignalBase::index() const
121 {
122         return (channel_) ? channel_->index() : 0;
123 }
124
125 unsigned int SignalBase::logic_bit_index() const
126 {
127         if (channel_type_ == LogicChannel)
128                 return channel_->index();
129         else
130                 return 0;
131 }
132
133 QColor SignalBase::color() const
134 {
135         return color_;
136 }
137
138 void SignalBase::set_color(QColor color)
139 {
140         color_ = color;
141
142         bgcolor_ = color;
143         bgcolor_.setAlpha(ColorBGAlpha);
144
145         color_changed(color);
146 }
147
148 QColor SignalBase::bgcolor() const
149 {
150         return bgcolor_;
151 }
152
153 void SignalBase::set_data(shared_ptr<pv::data::SignalData> data)
154 {
155         if (data_) {
156                 disconnect(data.get(), SIGNAL(samples_cleared()),
157                         this, SLOT(on_samples_cleared()));
158                 disconnect(data.get(), SIGNAL(samples_added(QObject*, uint64_t, uint64_t)),
159                         this, SLOT(on_samples_added(QObject*, uint64_t, uint64_t)));
160
161                 if (channel_type_ == AnalogChannel) {
162                         shared_ptr<Analog> analog = analog_data();
163                         assert(analog);
164
165                         disconnect(analog.get(), SIGNAL(min_max_changed(float, float)),
166                                 this, SLOT(on_min_max_changed(float, float)));
167                 }
168         }
169
170         data_ = data;
171
172         if (data_) {
173                 connect(data.get(), SIGNAL(samples_cleared()),
174                         this, SLOT(on_samples_cleared()));
175                 connect(data.get(), SIGNAL(samples_added(QObject*, uint64_t, uint64_t)),
176                         this, SLOT(on_samples_added(QObject*, uint64_t, uint64_t)));
177
178                 if (channel_type_ == AnalogChannel) {
179                         shared_ptr<Analog> analog = analog_data();
180                         assert(analog);
181
182                         connect(analog.get(), SIGNAL(min_max_changed(float, float)),
183                                 this, SLOT(on_min_max_changed(float, float)));
184                 }
185         }
186 }
187
188 shared_ptr<data::Analog> SignalBase::analog_data() const
189 {
190         shared_ptr<Analog> result = nullptr;
191
192         if (channel_type_ == AnalogChannel)
193                 result = dynamic_pointer_cast<Analog>(data_);
194
195         return result;
196 }
197
198 shared_ptr<data::Logic> SignalBase::logic_data() const
199 {
200         shared_ptr<Logic> result = nullptr;
201
202         if (channel_type_ == LogicChannel)
203                 result = dynamic_pointer_cast<Logic>(data_);
204
205         if (((conversion_type_ == A2LConversionByThreshold) ||
206                 (conversion_type_ == A2LConversionBySchmittTrigger)))
207                 result = dynamic_pointer_cast<Logic>(converted_data_);
208
209         return result;
210 }
211
212 bool SignalBase::segment_is_complete(uint32_t segment_id) const
213 {
214         bool result = true;
215
216         if (channel_type_ == AnalogChannel)
217         {
218                 shared_ptr<Analog> data = dynamic_pointer_cast<Analog>(data_);
219                 auto segments = data->analog_segments();
220                 try {
221                         result = segments.at(segment_id)->is_complete();
222                 } catch (out_of_range&) {
223                         // Do nothing
224                 }
225         }
226
227         if (channel_type_ == LogicChannel)
228         {
229                 shared_ptr<Logic> data = dynamic_pointer_cast<Logic>(data_);
230                 auto segments = data->logic_segments();
231                 try {
232                         result = segments.at(segment_id)->is_complete();
233                 } catch (out_of_range&) {
234                         // Do nothing
235                 }
236         }
237
238         return result;
239 }
240
241 bool SignalBase::has_samples() const
242 {
243         bool result = false;
244
245         if (channel_type_ == AnalogChannel)
246         {
247                 shared_ptr<Analog> data = dynamic_pointer_cast<Analog>(data_);
248                 if (data) {
249                         auto segments = data->analog_segments();
250                         if ((segments.size() > 0) && (segments.front()->get_sample_count() > 0))
251                                 result = true;
252                 }
253         }
254
255         if (channel_type_ == LogicChannel)
256         {
257                 shared_ptr<Logic> data = dynamic_pointer_cast<Logic>(data_);
258                 if (data) {
259                         auto segments = data->logic_segments();
260                         if ((segments.size() > 0) && (segments.front()->get_sample_count() > 0))
261                                 result = true;
262                 }
263         }
264
265         return result;
266 }
267
268 double SignalBase::get_samplerate() const
269 {
270         if (channel_type_ == AnalogChannel)
271         {
272                 shared_ptr<Analog> data = dynamic_pointer_cast<Analog>(data_);
273                 if (data)
274                         return data->get_samplerate();
275         }
276
277         if (channel_type_ == LogicChannel)
278         {
279                 shared_ptr<Logic> data = dynamic_pointer_cast<Logic>(data_);
280                 if (data)
281                         return data->get_samplerate();
282         }
283
284         // Default samplerate is 1 Hz
285         return 1.0;
286 }
287
288 SignalBase::ConversionType SignalBase::get_conversion_type() const
289 {
290         return conversion_type_;
291 }
292
293 void SignalBase::set_conversion_type(ConversionType t)
294 {
295         if (conversion_type_ != NoConversion) {
296                 stop_conversion();
297
298                 // Discard converted data
299                 converted_data_.reset();
300                 samples_cleared();
301         }
302
303         conversion_type_ = t;
304
305         // Re-create an empty container
306         // so that the signal is recognized as providing logic data
307         // and thus can be assigned to a decoder
308         if (conversion_is_a2l())
309                 if (!converted_data_)
310                         converted_data_ = make_shared<Logic>(1);  // Contains only one channel
311
312         start_conversion();
313
314         conversion_type_changed(t);
315 }
316
317 map<QString, QVariant> SignalBase::get_conversion_options() const
318 {
319         return conversion_options_;
320 }
321
322 bool SignalBase::set_conversion_option(QString key, QVariant value)
323 {
324         QVariant old_value;
325
326         auto key_iter = conversion_options_.find(key);
327         if (key_iter != conversion_options_.end())
328                 old_value = key_iter->second;
329
330         conversion_options_[key] = value;
331
332         return (value != old_value);
333 }
334
335 vector<double> SignalBase::get_conversion_thresholds(const ConversionType t,
336         const bool always_custom) const
337 {
338         vector<double> result;
339         ConversionType conv_type = t;
340         ConversionPreset preset;
341
342         // Use currently active conversion if no conversion type was supplied
343         if (conv_type == NoConversion)
344                 conv_type = conversion_type_;
345
346         if (always_custom)
347                 preset = NoPreset;
348         else
349                 preset = get_current_conversion_preset();
350
351         if (conv_type == A2LConversionByThreshold) {
352                 double thr = 0;
353
354                 if (preset == NoPreset) {
355                         auto thr_iter = conversion_options_.find("threshold_value");
356                         if (thr_iter != conversion_options_.end())
357                                 thr = (thr_iter->second).toDouble();
358                 }
359
360                 if (preset == DynamicPreset)
361                         thr = (min_value_ + max_value_) * 0.5;  // middle between min and max
362
363                 if ((int)preset == 1) thr = 0.9;
364                 if ((int)preset == 2) thr = 1.8;
365                 if ((int)preset == 3) thr = 2.5;
366                 if ((int)preset == 4) thr = 1.5;
367
368                 result.push_back(thr);
369         }
370
371         if (conv_type == A2LConversionBySchmittTrigger) {
372                 double thr_lo = 0, thr_hi = 0;
373
374                 if (preset == NoPreset) {
375                         auto thr_lo_iter = conversion_options_.find("threshold_value_low");
376                         if (thr_lo_iter != conversion_options_.end())
377                                 thr_lo = (thr_lo_iter->second).toDouble();
378
379                         auto thr_hi_iter = conversion_options_.find("threshold_value_high");
380                         if (thr_hi_iter != conversion_options_.end())
381                                 thr_hi = (thr_hi_iter->second).toDouble();
382                 }
383
384                 if (preset == DynamicPreset) {
385                         const double amplitude = max_value_ - min_value_;
386                         const double center = min_value_ + (amplitude / 2);
387                         thr_lo = center - (amplitude * 0.15);  // 15% margin
388                         thr_hi = center + (amplitude * 0.15);  // 15% margin
389                 }
390
391                 if ((int)preset == 1) { thr_lo = 0.3; thr_hi = 1.2; }
392                 if ((int)preset == 2) { thr_lo = 0.7; thr_hi = 2.5; }
393                 if ((int)preset == 3) { thr_lo = 1.3; thr_hi = 3.7; }
394                 if ((int)preset == 4) { thr_lo = 0.8; thr_hi = 2.0; }
395
396                 result.push_back(thr_lo);
397                 result.push_back(thr_hi);
398         }
399
400         return result;
401 }
402
403 vector< pair<QString, int> > SignalBase::get_conversion_presets() const
404 {
405         vector< pair<QString, int> > presets;
406
407         if (conversion_type_ == A2LConversionByThreshold) {
408                 // Source: http://www.interfacebus.com/voltage_threshold.html
409                 presets.emplace_back(tr("Signal average"), 0);
410                 presets.emplace_back(tr("0.9V (for 1.8V CMOS)"), 1);
411                 presets.emplace_back(tr("1.8V (for 3.3V CMOS)"), 2);
412                 presets.emplace_back(tr("2.5V (for 5.0V CMOS)"), 3);
413                 presets.emplace_back(tr("1.5V (for TTL)"), 4);
414         }
415
416         if (conversion_type_ == A2LConversionBySchmittTrigger) {
417                 // Source: http://www.interfacebus.com/voltage_threshold.html
418                 presets.emplace_back(tr("Signal average +/- 15%"), 0);
419                 presets.emplace_back(tr("0.3V/1.2V (for 1.8V CMOS)"), 1);
420                 presets.emplace_back(tr("0.7V/2.5V (for 3.3V CMOS)"), 2);
421                 presets.emplace_back(tr("1.3V/3.7V (for 5.0V CMOS)"), 3);
422                 presets.emplace_back(tr("0.8V/2.0V (for TTL)"), 4);
423         }
424
425         return presets;
426 }
427
428 SignalBase::ConversionPreset SignalBase::get_current_conversion_preset() const
429 {
430         auto preset = conversion_options_.find("preset");
431         if (preset != conversion_options_.end())
432                 return (ConversionPreset)((preset->second).toInt());
433
434         return DynamicPreset;
435 }
436
437 void SignalBase::set_conversion_preset(ConversionPreset id)
438 {
439         conversion_options_["preset"] = (int)id;
440 }
441
442 #ifdef ENABLE_DECODE
443 bool SignalBase::is_decode_signal() const
444 {
445         return (channel_type_ == DecodeChannel);
446 }
447 #endif
448
449 void SignalBase::save_settings(QSettings &settings) const
450 {
451         settings.setValue("name", name());
452         settings.setValue("enabled", enabled());
453         settings.setValue("color", color());
454         settings.setValue("conversion_type", (int)conversion_type_);
455
456         settings.setValue("conv_options", (int)(conversion_options_.size()));
457         int i = 0;
458         for (auto kvp : conversion_options_) {
459                 settings.setValue(QString("conv_option%1_key").arg(i), kvp.first);
460                 settings.setValue(QString("conv_option%1_value").arg(i), kvp.second);
461                 i++;
462         }
463 }
464
465 void SignalBase::restore_settings(QSettings &settings)
466 {
467         if (settings.contains("name"))
468                 set_name(settings.value("name").toString());
469
470         if (settings.contains("enabled"))
471                 set_enabled(settings.value("enabled").toBool());
472
473         if (settings.contains("color"))
474                 set_color(settings.value("color").value<QColor>());
475
476         if (settings.contains("conversion_type"))
477                 set_conversion_type((ConversionType)settings.value("conversion_type").toInt());
478
479         int conv_options = 0;
480         if (settings.contains("conv_options"))
481                 conv_options = settings.value("conv_options").toInt();
482
483         if (conv_options)
484                 for (int i = 0; i < conv_options; i++) {
485                         const QString key_id = QString("conv_option%1_key").arg(i);
486                         const QString value_id = QString("conv_option%1_value").arg(i);
487
488                         if (settings.contains(key_id) && settings.contains(value_id))
489                                 conversion_options_[settings.value(key_id).toString()] =
490                                         settings.value(value_id);
491                 }
492 }
493
494 bool SignalBase::conversion_is_a2l() const
495 {
496         return ((channel_type_ == AnalogChannel) &&
497                 ((conversion_type_ == A2LConversionByThreshold) ||
498                 (conversion_type_ == A2LConversionBySchmittTrigger)));
499 }
500
501 void SignalBase::convert_single_segment_range(AnalogSegment *asegment,
502         LogicSegment *lsegment, uint64_t start_sample, uint64_t end_sample)
503 {
504         if (end_sample > start_sample) {
505                 tie(min_value_, max_value_) = asegment->get_min_max();
506
507                 // Create sigrok::Analog instance
508                 float *asamples = new float[ConversionBlockSize];
509                 uint8_t *lsamples = new uint8_t[ConversionBlockSize];
510
511                 vector<shared_ptr<sigrok::Channel> > channels;
512                 channels.push_back(channel_);
513
514                 vector<const sigrok::QuantityFlag*> mq_flags;
515                 const sigrok::Quantity * const mq = sigrok::Quantity::VOLTAGE;
516                 const sigrok::Unit * const unit = sigrok::Unit::VOLT;
517
518                 shared_ptr<sigrok::Packet> packet =
519                         Session::sr_context->create_analog_packet(channels,
520                         asamples, ConversionBlockSize, mq, unit, mq_flags);
521
522                 shared_ptr<sigrok::Analog> analog =
523                         dynamic_pointer_cast<sigrok::Analog>(packet->payload());
524
525                 // Convert
526                 uint64_t i = start_sample;
527
528                 if (conversion_type_ == A2LConversionByThreshold) {
529                         const double threshold = get_conversion_thresholds()[0];
530
531                         // Convert as many sample blocks as we can
532                         while ((end_sample - i) > ConversionBlockSize) {
533                                 asegment->get_samples(i, i + ConversionBlockSize, asamples);
534
535                                 shared_ptr<sigrok::Logic> logic =
536                                         analog->get_logic_via_threshold(threshold, lsamples);
537
538                                 lsegment->append_payload(logic->data_pointer(), logic->data_length());
539                                 samples_added(lsegment->segment_id(), i, i + ConversionBlockSize);
540                                 i += ConversionBlockSize;
541                         }
542
543                         // Re-create sigrok::Analog and convert remaining samples
544                         packet = Session::sr_context->create_analog_packet(channels,
545                                 asamples, end_sample - i, mq, unit, mq_flags);
546
547                         analog = dynamic_pointer_cast<sigrok::Analog>(packet->payload());
548
549                         asegment->get_samples(i, end_sample, asamples);
550                         shared_ptr<sigrok::Logic> logic =
551                                 analog->get_logic_via_threshold(threshold, lsamples);
552                         lsegment->append_payload(logic->data_pointer(), logic->data_length());
553                         samples_added(lsegment->segment_id(), i, end_sample);
554                 }
555
556                 if (conversion_type_ == A2LConversionBySchmittTrigger) {
557                         const vector<double> thresholds = get_conversion_thresholds();
558                         const double lo_thr = thresholds[0];
559                         const double hi_thr = thresholds[1];
560
561                         uint8_t state = 0;  // TODO Use value of logic sample n-1 instead of 0
562
563                         // Convert as many sample blocks as we can
564                         while ((end_sample - i) > ConversionBlockSize) {
565                                 asegment->get_samples(i, i + ConversionBlockSize, asamples);
566
567                                 shared_ptr<sigrok::Logic> logic =
568                                         analog->get_logic_via_schmitt_trigger(lo_thr, hi_thr,
569                                                 &state, lsamples);
570
571                                 lsegment->append_payload(logic->data_pointer(), logic->data_length());
572                                 samples_added(lsegment->segment_id(), i, i + ConversionBlockSize);
573                                 i += ConversionBlockSize;
574                         }
575
576                         // Re-create sigrok::Analog and convert remaining samples
577                         packet = Session::sr_context->create_analog_packet(channels,
578                                 asamples, end_sample - i, mq, unit, mq_flags);
579
580                         analog = dynamic_pointer_cast<sigrok::Analog>(packet->payload());
581
582                         asegment->get_samples(i, end_sample, asamples);
583                         shared_ptr<sigrok::Logic> logic =
584                                 analog->get_logic_via_schmitt_trigger(lo_thr, hi_thr,
585                                         &state, lsamples);
586                         lsegment->append_payload(logic->data_pointer(), logic->data_length());
587                         samples_added(lsegment->segment_id(), i, end_sample);
588                 }
589
590                 // If acquisition is ongoing, start-/endsample may have changed
591                 end_sample = asegment->get_sample_count();
592
593                 delete[] lsamples;
594                 delete[] asamples;
595         }
596 }
597
598 void SignalBase::convert_single_segment(AnalogSegment *asegment, LogicSegment *lsegment)
599 {
600         uint64_t start_sample, end_sample, old_end_sample;
601         start_sample = end_sample = 0;
602         bool complete_state, old_complete_state;
603
604         start_sample = lsegment->get_sample_count();
605         end_sample = asegment->get_sample_count();
606         complete_state = asegment->is_complete();
607
608         // Don't do anything if the segment is still being filled and the sample count is too small
609         if ((!complete_state) && (end_sample - start_sample < ConversionBlockSize))
610                 return;
611
612         do {
613                 convert_single_segment_range(asegment, lsegment, start_sample, end_sample);
614
615                 old_end_sample = end_sample;
616                 old_complete_state = complete_state;
617
618                 start_sample = lsegment->get_sample_count();
619                 end_sample = asegment->get_sample_count();
620                 complete_state = asegment->is_complete();
621
622                 // If the segment has been incomplete when we were called and has been
623                 // completed in the meanwhile, we convert the remaining samples as well.
624                 // Also, if a sufficient number of samples was added in the meanwhile,
625                 // we do another round of sample conversion.
626         } while ((complete_state != old_complete_state) ||
627                 (end_sample - old_end_sample >= ConversionBlockSize));
628 }
629
630 void SignalBase::conversion_thread_proc()
631 {
632         shared_ptr<Analog> analog_data;
633
634         if (conversion_is_a2l()) {
635                 analog_data = dynamic_pointer_cast<Analog>(data_);
636
637                 if (analog_data->analog_segments().size() == 0) {
638                         unique_lock<mutex> input_lock(conversion_input_mutex_);
639                         conversion_input_cond_.wait(input_lock);
640                 }
641
642         } else
643                 // Currently, we only handle A2L conversions
644                 return;
645
646         // If we had to wait for input data, we may have been notified to terminate
647         if (conversion_interrupt_)
648                 return;
649
650         uint32_t segment_id = 0;
651
652         AnalogSegment *asegment = analog_data->analog_segments().front().get();
653         assert(asegment);
654
655         const shared_ptr<Logic> logic_data = dynamic_pointer_cast<Logic>(converted_data_);
656         assert(logic_data);
657
658         // Create the initial logic data segment if needed
659         if (logic_data->logic_segments().size() == 0) {
660                 shared_ptr<LogicSegment> new_segment =
661                         make_shared<LogicSegment>(*logic_data.get(), 0, 1, asegment->samplerate());
662                 logic_data->push_segment(new_segment);
663         }
664
665         LogicSegment *lsegment = logic_data->logic_segments().front().get();
666         assert(lsegment);
667
668         do {
669                 convert_single_segment(asegment, lsegment);
670
671                 // Only advance to next segment if the current input segment is complete
672                 if (asegment->is_complete() &&
673                         analog_data->analog_segments().size() > logic_data->logic_segments().size()) {
674                         // There are more segments to process
675                         segment_id++;
676
677                         try {
678                                 asegment = analog_data->analog_segments().at(segment_id).get();
679                         } catch (out_of_range&) {
680                                 qDebug() << "Conversion error for" << name() << ": no analog segment" \
681                                         << segment_id << ", segments size is" << analog_data->analog_segments().size();
682                                 return;
683                         }
684
685                         shared_ptr<LogicSegment> new_segment = make_shared<LogicSegment>(
686                                 *logic_data.get(), segment_id, 1, asegment->samplerate());
687                         logic_data->push_segment(new_segment);
688
689                         lsegment = logic_data->logic_segments().back().get();
690                 } else {
691                         // No more samples/segments to process, wait for data or interrupt
692                         if (!conversion_interrupt_) {
693                                 unique_lock<mutex> input_lock(conversion_input_mutex_);
694                                 conversion_input_cond_.wait(input_lock);
695                         }
696                 }
697         } while (!conversion_interrupt_);
698 }
699
700 void SignalBase::start_conversion(bool delayed_start)
701 {
702         if (delayed_start) {
703                 delayed_conversion_starter_.start();
704                 return;
705         }
706
707         stop_conversion();
708
709         if (converted_data_)
710                 converted_data_->clear();
711         samples_cleared();
712
713         conversion_interrupt_ = false;
714         conversion_thread_ = std::thread(
715                 &SignalBase::conversion_thread_proc, this);
716 }
717
718 void SignalBase::stop_conversion()
719 {
720         // Stop conversion so we can restart it from the beginning
721         conversion_interrupt_ = true;
722         conversion_input_cond_.notify_one();
723         if (conversion_thread_.joinable())
724                 conversion_thread_.join();
725 }
726
727 void SignalBase::on_samples_cleared()
728 {
729         if (converted_data_)
730                 converted_data_->clear();
731
732         samples_cleared();
733 }
734
735 void SignalBase::on_samples_added(QObject* segment, uint64_t start_sample,
736         uint64_t end_sample)
737 {
738         if (conversion_type_ != NoConversion) {
739                 if (conversion_thread_.joinable()) {
740                         // Notify the conversion thread since it's running
741                         conversion_input_cond_.notify_one();
742                 } else {
743                         // Start the conversion thread unless the delay timer is running
744                         if (!delayed_conversion_starter_.isActive())
745                                 start_conversion();
746                 }
747         }
748
749         data::Segment* s = qobject_cast<data::Segment*>(segment);
750         samples_added(s->segment_id(), start_sample, end_sample);
751 }
752
753 void SignalBase::on_min_max_changed(float min, float max)
754 {
755         // Restart conversion if one is enabled and uses a calculated threshold
756         if ((conversion_type_ != NoConversion) &&
757                 (get_current_conversion_preset() == DynamicPreset))
758                 start_conversion(true);
759
760         min_max_changed(min, max);
761 }
762
763 void SignalBase::on_capture_state_changed(int state)
764 {
765         if (state == Session::Running) {
766                 // Restart conversion if one is enabled
767                 if (conversion_type_ != NoConversion)
768                         start_conversion();
769         }
770 }
771
772 void SignalBase::on_delayed_conversion_start()
773 {
774         start_conversion();
775 }
776
777 } // namespace data
778 } // namespace pv