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Session: Fix issue #67 by improving error handling
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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
35using std::dynamic_pointer_cast;
36using std::make_shared;
37using std::out_of_range;
38using std::shared_ptr;
39using std::tie;
40using std::unique_lock;
41
42namespace pv {
43namespace data {
44
45const 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
57const 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
72const int SignalBase::ColorBGAlpha = 8 * 256 / 100;
73const uint64_t SignalBase::ConversionBlockSize = 4096;
74const uint32_t SignalBase::ConversionDelay = 1000; // 1 second
75
76
77SignalGroup::SignalGroup(const QString& name)
78{
79 name_ = name;
80}
81
82void 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
91void 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
101deque<shared_ptr<SignalBase>> SignalGroup::signals() const
102{
103 return signals_;
104}
105
106void SignalGroup::clear()
107{
108 for (shared_ptr<SignalBase> sb : signals_)
109 sb->set_group(nullptr);
110
111 signals_.clear();
112}
113
114const QString SignalGroup::name() const
115{
116 return name_;
117}
118
119
120SignalBase::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 index_(0),
128 error_message_("")
129{
130 if (channel_) {
131 set_internal_name(QString::fromStdString(channel_->name()));
132 set_index(channel_->index());
133 }
134
135 connect(&delayed_conversion_starter_, SIGNAL(timeout()),
136 this, SLOT(on_delayed_conversion_start()));
137 delayed_conversion_starter_.setSingleShot(true);
138 delayed_conversion_starter_.setInterval(ConversionDelay);
139
140 // Only logic and analog SR channels can have their colors auto-set
141 // because for them, we have an index that can be used
142 if (channel_type == LogicChannel)
143 set_color(LogicSignalColors[index() % countof(LogicSignalColors)]);
144 else if (channel_type == AnalogChannel)
145 set_color(AnalogSignalColors[index() % countof(AnalogSignalColors)]);
146}
147
148SignalBase::~SignalBase()
149{
150 stop_conversion();
151}
152
153shared_ptr<sigrok::Channel> SignalBase::channel() const
154{
155 return channel_;
156}
157
158bool SignalBase::is_generated() const
159{
160 // Only signals associated with a device have a corresponding sigrok channel
161 return channel_ == nullptr;
162}
163
164bool SignalBase::enabled() const
165{
166 return (channel_) ? channel_->enabled() : true;
167}
168
169void SignalBase::set_enabled(bool value)
170{
171 if (channel_) {
172 channel_->set_enabled(value);
173 enabled_changed(value);
174 }
175}
176
177SignalBase::ChannelType SignalBase::type() const
178{
179 return channel_type_;
180}
181
182unsigned int SignalBase::index() const
183{
184 return index_;
185}
186
187void SignalBase::set_index(unsigned int index)
188{
189 index_ = index;
190}
191
192unsigned int SignalBase::logic_bit_index() const
193{
194 if (channel_type_ == LogicChannel)
195 return index_;
196 else
197 return 0;
198}
199
200void SignalBase::set_group(SignalGroup* group)
201{
202 group_ = group;
203}
204
205SignalGroup* SignalBase::group() const
206{
207 return group_;
208}
209
210QString SignalBase::name() const
211{
212 return (channel_) ? QString::fromStdString(channel_->name()) : name_;
213}
214
215QString SignalBase::internal_name() const
216{
217 return internal_name_;
218}
219
220void SignalBase::set_internal_name(QString internal_name)
221{
222 internal_name_ = internal_name;
223
224 // Use this name also for the QObject instance
225 setObjectName(internal_name);
226}
227
228QString SignalBase::display_name() const
229{
230 if ((name() != internal_name_) && (!internal_name_.isEmpty()))
231 return name() + " (" + internal_name_ + ")";
232 else
233 return name();
234}
235
236void SignalBase::set_name(QString name)
237{
238 if (channel_)
239 channel_->set_name(name.toUtf8().constData());
240
241 name_ = name;
242
243 name_changed(name);
244}
245
246QColor SignalBase::color() const
247{
248 return color_;
249}
250
251void SignalBase::set_color(QColor color)
252{
253 color_ = color;
254
255 bgcolor_ = color;
256 bgcolor_.setAlpha(ColorBGAlpha);
257
258 color_changed(color);
259}
260
261QColor SignalBase::bgcolor() const
262{
263 return bgcolor_;
264}
265
266QString SignalBase::get_error_message() const
267{
268 return error_message_;
269}
270
271void SignalBase::set_data(shared_ptr<pv::data::SignalData> data)
272{
273 if (data_) {
274 disconnect(data.get(), SIGNAL(samples_cleared()),
275 this, SLOT(on_samples_cleared()));
276 disconnect(data.get(), SIGNAL(samples_added(shared_ptr<Segment>, uint64_t, uint64_t)),
277 this, SLOT(on_samples_added(shared_ptr<Segment>, uint64_t, uint64_t)));
278
279 shared_ptr<Analog> analog = analog_data();
280 if (analog)
281 disconnect(analog.get(), SIGNAL(min_max_changed(float, float)),
282 this, SLOT(on_min_max_changed(float, float)));
283 }
284
285 data_ = data;
286
287 if (data_) {
288 connect(data.get(), SIGNAL(samples_cleared()),
289 this, SLOT(on_samples_cleared()));
290 connect(data.get(), SIGNAL(samples_added(SharedPtrToSegment, uint64_t, uint64_t)),
291 this, SLOT(on_samples_added(SharedPtrToSegment, uint64_t, uint64_t)));
292
293 shared_ptr<Analog> analog = analog_data();
294 if (analog)
295 connect(analog.get(), SIGNAL(min_max_changed(float, float)),
296 this, SLOT(on_min_max_changed(float, float)));
297 }
298}
299
300void SignalBase::clear_sample_data()
301{
302 if (analog_data())
303 analog_data()->clear();
304
305 if (logic_data())
306 logic_data()->clear();
307}
308
309shared_ptr<data::Analog> SignalBase::analog_data() const
310{
311 if (!data_)
312 return nullptr;
313
314 return dynamic_pointer_cast<Analog>(data_);
315}
316
317shared_ptr<data::Logic> SignalBase::logic_data() const
318{
319 if (!data_)
320 return nullptr;
321
322 shared_ptr<Logic> result;
323
324 if (((conversion_type_ == A2LConversionByThreshold) ||
325 (conversion_type_ == A2LConversionBySchmittTrigger)))
326 result = dynamic_pointer_cast<Logic>(converted_data_);
327 else
328 result = dynamic_pointer_cast<Logic>(data_);
329
330 return result;
331}
332
333shared_ptr<pv::data::SignalData> SignalBase::data() const
334{
335 return data_;
336}
337
338bool SignalBase::segment_is_complete(uint32_t segment_id) const
339{
340 bool result = true;
341
342 shared_ptr<Analog> adata = analog_data();
343 if (adata)
344 {
345 auto segments = adata->analog_segments();
346 try {
347 result = segments.at(segment_id)->is_complete();
348 } catch (out_of_range&) {
349 // Do nothing
350 }
351 } else {
352 shared_ptr<Logic> ldata = logic_data();
353 if (ldata) {
354 shared_ptr<Logic> data = dynamic_pointer_cast<Logic>(data_);
355 auto segments = data->logic_segments();
356 try {
357 result = segments.at(segment_id)->is_complete();
358 } catch (out_of_range&) {
359 // Do nothing
360 }
361 }
362 }
363
364 return result;
365}
366
367bool SignalBase::has_samples() const
368{
369 bool result = false;
370
371 shared_ptr<Analog> adata = analog_data();
372 if (adata)
373 {
374 auto segments = adata->analog_segments();
375 if ((segments.size() > 0) && (segments.front()->get_sample_count() > 0))
376 result = true;
377 } else {
378 shared_ptr<Logic> ldata = logic_data();
379 if (ldata) {
380 auto segments = ldata->logic_segments();
381 if ((segments.size() > 0) && (segments.front()->get_sample_count() > 0))
382 result = true;
383 }
384 }
385
386 return result;
387}
388
389double SignalBase::get_samplerate() const
390{
391 shared_ptr<Analog> adata = analog_data();
392 if (adata)
393 return adata->get_samplerate();
394 else {
395 shared_ptr<Logic> ldata = logic_data();
396 if (ldata)
397 return ldata->get_samplerate();
398 }
399
400 // Default samplerate is 1 Hz
401 return 1.0;
402}
403
404SignalBase::ConversionType SignalBase::get_conversion_type() const
405{
406 return conversion_type_;
407}
408
409void SignalBase::set_conversion_type(ConversionType t)
410{
411 if (conversion_type_ != NoConversion) {
412 stop_conversion();
413
414 // Discard converted data
415 converted_data_.reset();
416 samples_cleared();
417 }
418
419 conversion_type_ = t;
420
421 // Re-create an empty container
422 // so that the signal is recognized as providing logic data
423 // and thus can be assigned to a decoder
424 if (conversion_is_a2l())
425 if (!converted_data_)
426 converted_data_ = make_shared<Logic>(1); // Contains only one channel
427
428 start_conversion();
429
430 conversion_type_changed(t);
431}
432
433map<QString, QVariant> SignalBase::get_conversion_options() const
434{
435 return conversion_options_;
436}
437
438bool SignalBase::set_conversion_option(QString key, QVariant value)
439{
440 QVariant old_value;
441
442 auto key_iter = conversion_options_.find(key);
443 if (key_iter != conversion_options_.end())
444 old_value = key_iter->second;
445
446 conversion_options_[key] = value;
447
448 return (value != old_value);
449}
450
451vector<double> SignalBase::get_conversion_thresholds(const ConversionType t,
452 const bool always_custom) const
453{
454 vector<double> result;
455 ConversionType conv_type = t;
456 ConversionPreset preset;
457
458 // Use currently active conversion if no conversion type was supplied
459 if (conv_type == NoConversion)
460 conv_type = conversion_type_;
461
462 if (always_custom)
463 preset = NoPreset;
464 else
465 preset = get_current_conversion_preset();
466
467 if (conv_type == A2LConversionByThreshold) {
468 double thr = 0;
469
470 if (preset == NoPreset) {
471 auto thr_iter = conversion_options_.find("threshold_value");
472 if (thr_iter != conversion_options_.end())
473 thr = (thr_iter->second).toDouble();
474 }
475
476 if (preset == DynamicPreset)
477 thr = (min_value_ + max_value_) * 0.5; // middle between min and max
478
479 if ((int)preset == 1) thr = 0.9;
480 if ((int)preset == 2) thr = 1.8;
481 if ((int)preset == 3) thr = 2.5;
482 if ((int)preset == 4) thr = 1.5;
483
484 result.push_back(thr);
485 }
486
487 if (conv_type == A2LConversionBySchmittTrigger) {
488 double thr_lo = 0, thr_hi = 0;
489
490 if (preset == NoPreset) {
491 auto thr_lo_iter = conversion_options_.find("threshold_value_low");
492 if (thr_lo_iter != conversion_options_.end())
493 thr_lo = (thr_lo_iter->second).toDouble();
494
495 auto thr_hi_iter = conversion_options_.find("threshold_value_high");
496 if (thr_hi_iter != conversion_options_.end())
497 thr_hi = (thr_hi_iter->second).toDouble();
498 }
499
500 if (preset == DynamicPreset) {
501 const double amplitude = max_value_ - min_value_;
502 const double center = min_value_ + (amplitude / 2);
503 thr_lo = center - (amplitude * 0.15); // 15% margin
504 thr_hi = center + (amplitude * 0.15); // 15% margin
505 }
506
507 if ((int)preset == 1) { thr_lo = 0.3; thr_hi = 1.2; }
508 if ((int)preset == 2) { thr_lo = 0.7; thr_hi = 2.5; }
509 if ((int)preset == 3) { thr_lo = 1.3; thr_hi = 3.7; }
510 if ((int)preset == 4) { thr_lo = 0.8; thr_hi = 2.0; }
511
512 result.push_back(thr_lo);
513 result.push_back(thr_hi);
514 }
515
516 return result;
517}
518
519vector< pair<QString, int> > SignalBase::get_conversion_presets() const
520{
521 vector< pair<QString, int> > presets;
522
523 if (conversion_type_ == A2LConversionByThreshold) {
524 // Source: http://www.interfacebus.com/voltage_threshold.html
525 presets.emplace_back(tr("Signal average"), 0);
526 presets.emplace_back(tr("0.9V (for 1.8V CMOS)"), 1);
527 presets.emplace_back(tr("1.8V (for 3.3V CMOS)"), 2);
528 presets.emplace_back(tr("2.5V (for 5.0V CMOS)"), 3);
529 presets.emplace_back(tr("1.5V (for TTL)"), 4);
530 }
531
532 if (conversion_type_ == A2LConversionBySchmittTrigger) {
533 // Source: http://www.interfacebus.com/voltage_threshold.html
534 presets.emplace_back(tr("Signal average +/- 15%"), 0);
535 presets.emplace_back(tr("0.3V/1.2V (for 1.8V CMOS)"), 1);
536 presets.emplace_back(tr("0.7V/2.5V (for 3.3V CMOS)"), 2);
537 presets.emplace_back(tr("1.3V/3.7V (for 5.0V CMOS)"), 3);
538 presets.emplace_back(tr("0.8V/2.0V (for TTL)"), 4);
539 }
540
541 return presets;
542}
543
544SignalBase::ConversionPreset SignalBase::get_current_conversion_preset() const
545{
546 auto preset = conversion_options_.find("preset");
547 if (preset != conversion_options_.end())
548 return (ConversionPreset)((preset->second).toInt());
549
550 return DynamicPreset;
551}
552
553void SignalBase::set_conversion_preset(ConversionPreset id)
554{
555 conversion_options_["preset"] = (int)id;
556}
557
558#ifdef ENABLE_DECODE
559bool SignalBase::is_decode_signal() const
560{
561 return (channel_type_ == DecodeChannel);
562}
563#endif
564
565void SignalBase::save_settings(QSettings &settings) const
566{
567 settings.setValue("name", name());
568 settings.setValue("enabled", enabled());
569 settings.setValue("color", color().rgba());
570 settings.setValue("conversion_type", (int)conversion_type_);
571
572 settings.setValue("conv_options", (int)(conversion_options_.size()));
573 int i = 0;
574 for (auto& kvp : conversion_options_) {
575 settings.setValue(QString("conv_option%1_key").arg(i), kvp.first);
576 settings.setValue(QString("conv_option%1_value").arg(i), kvp.second);
577 i++;
578 }
579}
580
581void SignalBase::restore_settings(QSettings &settings)
582{
583 if (settings.contains("name"))
584 set_name(settings.value("name").toString());
585
586 if (settings.contains("enabled"))
587 set_enabled(settings.value("enabled").toBool());
588
589 if (settings.contains("color")) {
590 QVariant value = settings.value("color");
591
592 // Workaround for Qt QColor serialization bug on OSX
593#if QT_VERSION >= QT_VERSION_CHECK(6, 0, 0)
594 bool is_qcolor = (QMetaType::Type)(value.typeId()) == QMetaType::QColor;
595#else
596 bool is_qcolor = (QMetaType::Type)(value.type()) == QMetaType::QColor;
597#endif
598 if (is_qcolor)
599 set_color(value.value<QColor>());
600 else
601 set_color(QColor::fromRgba(value.value<uint32_t>()));
602
603 // A color with an alpha value of 0 makes the signal marker invisible
604 if (color() == QColor(0, 0, 0, 0))
605 set_color(Qt::gray);
606 }
607
608 if (settings.contains("conversion_type"))
609 set_conversion_type((ConversionType)settings.value("conversion_type").toInt());
610
611 int conv_options = 0;
612 if (settings.contains("conv_options"))
613 conv_options = settings.value("conv_options").toInt();
614
615 if (conv_options)
616 for (int i = 0; i < conv_options; i++) {
617 const QString key_id = QString("conv_option%1_key").arg(i);
618 const QString value_id = QString("conv_option%1_value").arg(i);
619
620 if (settings.contains(key_id) && settings.contains(value_id))
621 conversion_options_[settings.value(key_id).toString()] =
622 settings.value(value_id);
623 }
624}
625
626bool SignalBase::conversion_is_a2l() const
627{
628 return (((conversion_type_ == A2LConversionByThreshold) ||
629 (conversion_type_ == A2LConversionBySchmittTrigger)));
630}
631
632void SignalBase::convert_single_segment_range(shared_ptr<AnalogSegment> asegment,
633 shared_ptr<LogicSegment> lsegment, uint64_t start_sample, uint64_t end_sample)
634{
635 if (end_sample > start_sample) {
636 tie(min_value_, max_value_) = asegment->get_min_max();
637
638 // Create sigrok::Analog instance
639 float *asamples = new float[ConversionBlockSize];
640 assert(asamples);
641 uint8_t *lsamples = new uint8_t[ConversionBlockSize];
642 assert(lsamples);
643
644 vector<shared_ptr<sigrok::Channel> > channels;
645 if (channel_)
646 channels.push_back(channel_);
647
648 vector<const sigrok::QuantityFlag*> mq_flags;
649 const sigrok::Quantity * const mq = sigrok::Quantity::VOLTAGE;
650 const sigrok::Unit * const unit = sigrok::Unit::VOLT;
651
652 shared_ptr<sigrok::Packet> packet =
653 Session::sr_context->create_analog_packet(channels,
654 asamples, ConversionBlockSize, mq, unit, mq_flags);
655
656 shared_ptr<sigrok::Analog> analog =
657 dynamic_pointer_cast<sigrok::Analog>(packet->payload());
658
659 // Convert
660 uint64_t i = start_sample;
661
662 if (conversion_type_ == A2LConversionByThreshold) {
663 const double threshold = get_conversion_thresholds()[0];
664
665 // Convert as many sample blocks as we can
666 while ((end_sample - i) > ConversionBlockSize) {
667 asegment->get_samples(i, i + ConversionBlockSize, asamples);
668
669 shared_ptr<sigrok::Logic> logic =
670 analog->get_logic_via_threshold(threshold, lsamples);
671
672 lsegment->append_payload(logic->data_pointer(), logic->data_length());
673 samples_added(lsegment->segment_id(), i, i + ConversionBlockSize);
674 i += ConversionBlockSize;
675 }
676
677 // Re-create sigrok::Analog and convert remaining samples
678 packet = Session::sr_context->create_analog_packet(channels,
679 asamples, end_sample - i, mq, unit, mq_flags);
680
681 analog = dynamic_pointer_cast<sigrok::Analog>(packet->payload());
682
683 asegment->get_samples(i, end_sample, asamples);
684 shared_ptr<sigrok::Logic> logic =
685 analog->get_logic_via_threshold(threshold, lsamples);
686 lsegment->append_payload(logic->data_pointer(), logic->data_length());
687 samples_added(lsegment->segment_id(), i, end_sample);
688 }
689
690 if (conversion_type_ == A2LConversionBySchmittTrigger) {
691 const vector<double> thresholds = get_conversion_thresholds();
692 const double lo_thr = thresholds[0];
693 const double hi_thr = thresholds[1];
694
695 uint8_t state = 0; // TODO Use value of logic sample n-1 instead of 0
696
697 // Convert as many sample blocks as we can
698 while ((end_sample - i) > ConversionBlockSize) {
699 asegment->get_samples(i, i + ConversionBlockSize, asamples);
700
701 shared_ptr<sigrok::Logic> logic =
702 analog->get_logic_via_schmitt_trigger(lo_thr, hi_thr,
703 &state, lsamples);
704
705 lsegment->append_payload(logic->data_pointer(), logic->data_length());
706 samples_added(lsegment->segment_id(), i, i + ConversionBlockSize);
707
708 i += ConversionBlockSize;
709 }
710
711 // Re-create sigrok::Analog and convert remaining samples
712 packet = Session::sr_context->create_analog_packet(channels,
713 asamples, end_sample - i, mq, unit, mq_flags);
714
715 analog = dynamic_pointer_cast<sigrok::Analog>(packet->payload());
716
717 asegment->get_samples(i, end_sample, asamples);
718 shared_ptr<sigrok::Logic> logic =
719 analog->get_logic_via_schmitt_trigger(lo_thr, hi_thr,
720 &state, lsamples);
721 lsegment->append_payload(logic->data_pointer(), logic->data_length());
722 samples_added(lsegment->segment_id(), i, end_sample);
723 }
724
725 // If acquisition is ongoing, start-/endsample may have changed
726 end_sample = asegment->get_sample_count();
727
728 delete[] lsamples;
729 delete[] asamples;
730 }
731
732 samples_added(lsegment->segment_id(), start_sample, end_sample);
733}
734
735void SignalBase::convert_single_segment(shared_ptr<AnalogSegment> asegment,
736 shared_ptr<LogicSegment> lsegment)
737{
738 uint64_t start_sample, end_sample, old_end_sample;
739 start_sample = end_sample = 0;
740 bool complete_state, old_complete_state;
741
742 start_sample = lsegment->get_sample_count();
743 end_sample = asegment->get_sample_count();
744 complete_state = asegment->is_complete();
745
746 // Don't do anything if the segment is still being filled and the sample count is too small
747 if ((!complete_state) && (end_sample - start_sample < ConversionBlockSize))
748 return;
749
750 do {
751 convert_single_segment_range(asegment, lsegment, start_sample, end_sample);
752
753 old_end_sample = end_sample;
754 old_complete_state = complete_state;
755
756 start_sample = lsegment->get_sample_count();
757 end_sample = asegment->get_sample_count();
758 complete_state = asegment->is_complete();
759
760 // If the segment has been incomplete when we were called and has been
761 // completed in the meanwhile, we convert the remaining samples as well.
762 // Also, if a sufficient number of samples was added in the meanwhile,
763 // we do another round of sample conversion.
764 } while ((complete_state != old_complete_state) ||
765 (end_sample - old_end_sample >= ConversionBlockSize));
766
767 if (complete_state)
768 lsegment->set_complete();
769}
770
771void SignalBase::conversion_thread_proc()
772{
773 shared_ptr<Analog> analog_data;
774
775 if (conversion_is_a2l()) {
776 analog_data = dynamic_pointer_cast<Analog>(data_);
777
778 if (analog_data->analog_segments().size() == 0) {
779 unique_lock<mutex> input_lock(conversion_input_mutex_);
780 conversion_input_cond_.wait(input_lock);
781 }
782
783 } else
784 // Currently, we only handle A2L conversions
785 return;
786
787 // If we had to wait for input data, we may have been notified to terminate
788 if (conversion_interrupt_)
789 return;
790
791 uint32_t segment_id = 0;
792
793 shared_ptr<AnalogSegment> asegment = analog_data->analog_segments().front();
794 assert(asegment);
795 connect(asegment.get(), SIGNAL(completed()), this, SLOT(on_input_segment_completed()));
796
797 const shared_ptr<Logic> logic_data = dynamic_pointer_cast<Logic>(converted_data_);
798 assert(logic_data);
799
800 // Create the initial logic data segment if needed
801 if (logic_data->logic_segments().size() == 0) {
802 shared_ptr<LogicSegment> new_segment =
803 make_shared<LogicSegment>(*logic_data.get(), 0, 1, asegment->samplerate());
804 logic_data->push_segment(new_segment);
805 }
806
807 shared_ptr<LogicSegment> lsegment = logic_data->logic_segments().front();
808 assert(lsegment);
809
810 do {
811 convert_single_segment(asegment, lsegment);
812
813 // Only advance to next segment if the current input segment is complete
814 if (asegment->is_complete() &&
815 analog_data->analog_segments().size() > logic_data->logic_segments().size()) {
816
817 disconnect(asegment.get(), SIGNAL(completed()), this, SLOT(on_input_segment_completed()));
818
819 // There are more segments to process
820 segment_id++;
821
822 try {
823 asegment = analog_data->analog_segments().at(segment_id);
824 disconnect(asegment.get(), SIGNAL(completed()), this, SLOT(on_input_segment_completed()));
825 connect(asegment.get(), SIGNAL(completed()), this, SLOT(on_input_segment_completed()));
826 } catch (out_of_range&) {
827 qDebug() << "Conversion error for" << name() << ": no analog segment" \
828 << segment_id << ", segments size is" << analog_data->analog_segments().size();
829 return;
830 }
831
832 shared_ptr<LogicSegment> new_segment = make_shared<LogicSegment>(
833 *logic_data.get(), segment_id, 1, asegment->samplerate());
834 logic_data->push_segment(new_segment);
835
836 lsegment = logic_data->logic_segments().back();
837 } else {
838 // No more samples/segments to process, wait for data or interrupt
839 if (!conversion_interrupt_) {
840 unique_lock<mutex> input_lock(conversion_input_mutex_);
841 conversion_input_cond_.wait(input_lock);
842 }
843 }
844 } while (!conversion_interrupt_);
845
846 disconnect(asegment.get(), SIGNAL(completed()), this, SLOT(on_input_segment_completed()));
847}
848
849void SignalBase::start_conversion(bool delayed_start)
850{
851 if (delayed_start) {
852 delayed_conversion_starter_.start();
853 return;
854 }
855
856 stop_conversion();
857
858 if (converted_data_ && (converted_data_->get_segment_count() > 0)) {
859 converted_data_->clear();
860 samples_cleared();
861 }
862
863 conversion_interrupt_ = false;
864 conversion_thread_ = std::thread(&SignalBase::conversion_thread_proc, this);
865}
866
867void SignalBase::set_error_message(QString msg)
868{
869 error_message_ = msg;
870 // TODO Emulate noquote()
871 qDebug().nospace() << name() << ": " << msg;
872
873 error_message_changed(msg);
874}
875
876void SignalBase::stop_conversion()
877{
878 // Stop conversion so we can restart it from the beginning
879 conversion_interrupt_ = true;
880 conversion_input_cond_.notify_one();
881 if (conversion_thread_.joinable())
882 conversion_thread_.join();
883}
884
885void SignalBase::on_samples_cleared()
886{
887 if (converted_data_ && (converted_data_->get_segment_count() > 0)) {
888 converted_data_->clear();
889 samples_cleared();
890 }
891}
892
893void SignalBase::on_samples_added(SharedPtrToSegment segment, uint64_t start_sample,
894 uint64_t end_sample)
895{
896 if (conversion_type_ != NoConversion) {
897 if (conversion_thread_.joinable()) {
898 // Notify the conversion thread since it's running
899 conversion_input_cond_.notify_one();
900 } else {
901 // Start the conversion thread unless the delay timer is running
902 if (!delayed_conversion_starter_.isActive())
903 start_conversion();
904 }
905 }
906
907 samples_added(segment->segment_id(), start_sample, end_sample);
908}
909
910void SignalBase::on_input_segment_completed()
911{
912 if (conversion_type_ != NoConversion)
913 if (conversion_thread_.joinable()) {
914 // Notify the conversion thread since it's running
915 conversion_input_cond_.notify_one();
916 }
917}
918
919void SignalBase::on_min_max_changed(float min, float max)
920{
921 // Restart conversion if one is enabled and uses a calculated threshold
922 if ((conversion_type_ != NoConversion) &&
923 (get_current_conversion_preset() == DynamicPreset))
924 start_conversion(true);
925
926 min_max_changed(min, max);
927}
928
929void SignalBase::on_capture_state_changed(int state)
930{
931 if (state == Session::Running) {
932 // Restart conversion if one is enabled
933 if (conversion_type_ != NoConversion)
934 start_conversion();
935 }
936}
937
938void SignalBase::on_delayed_conversion_start()
939{
940 start_conversion();
941}
942
943} // namespace data
944} // namespace pv
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