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