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1 | /* | |
2 | * This file is part of the PulseView project. | |
3 | * | |
4 | * Copyright (C) 2017 Soeren Apel <soeren@apelpie.net> | |
5 | * | |
6 | * This program is free software; you can redistribute it and/or modify | |
7 | * it under the terms of the GNU General Public License as published by | |
8 | * the Free Software Foundation; either version 2 of the License, or | |
9 | * (at your option) any later version. | |
10 | * | |
11 | * This program is distributed in the hope that it will be useful, | |
12 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
14 | * GNU General Public License for more details. | |
15 | * | |
16 | * You should have received a copy of the GNU General Public License | |
17 | * along with this program; if not, see <http://www.gnu.org/licenses/>. | |
18 | */ | |
19 | ||
20 | #include <limits> | |
21 | ||
22 | #include <QDebug> | |
23 | ||
24 | #include "logic.hpp" | |
25 | #include "logicsegment.hpp" | |
26 | #include "decodesignal.hpp" | |
27 | #include "signaldata.hpp" | |
28 | ||
29 | #include <pv/binding/decoder.hpp> | |
30 | #include <pv/data/decode/decoder.hpp> | |
31 | #include <pv/data/decode/row.hpp> | |
32 | #include <pv/globalsettings.hpp> | |
33 | #include <pv/session.hpp> | |
34 | ||
35 | using std::lock_guard; | |
36 | using std::make_pair; | |
37 | using std::make_shared; | |
38 | using std::min; | |
39 | using std::out_of_range; | |
40 | using std::shared_ptr; | |
41 | using std::unique_lock; | |
42 | using pv::data::decode::Annotation; | |
43 | using pv::data::decode::Decoder; | |
44 | using pv::data::decode::Row; | |
45 | ||
46 | namespace pv { | |
47 | namespace data { | |
48 | ||
49 | const double DecodeSignal::DecodeMargin = 1.0; | |
50 | const double DecodeSignal::DecodeThreshold = 0.2; | |
51 | const int64_t DecodeSignal::DecodeChunkLength = 256 * 1024; | |
52 | ||
53 | ||
54 | DecodeSignal::DecodeSignal(pv::Session &session) : | |
55 | SignalBase(nullptr, SignalBase::DecodeChannel), | |
56 | session_(session), | |
57 | srd_session_(nullptr), | |
58 | logic_mux_data_invalid_(false), | |
59 | stack_config_changed_(true), | |
60 | current_segment_id_(0) | |
61 | { | |
62 | connect(&session_, SIGNAL(capture_state_changed(int)), | |
63 | this, SLOT(on_capture_state_changed(int))); | |
64 | } | |
65 | ||
66 | DecodeSignal::~DecodeSignal() | |
67 | { | |
68 | reset_decode(true); | |
69 | } | |
70 | ||
71 | const vector< shared_ptr<Decoder> >& DecodeSignal::decoder_stack() const | |
72 | { | |
73 | return stack_; | |
74 | } | |
75 | ||
76 | void DecodeSignal::stack_decoder(const srd_decoder *decoder) | |
77 | { | |
78 | assert(decoder); | |
79 | const shared_ptr<Decoder> dec = make_shared<decode::Decoder>(decoder); | |
80 | ||
81 | stack_.push_back(dec); | |
82 | ||
83 | // Set name if this decoder is the first in the list | |
84 | if (stack_.size() == 1) | |
85 | set_name(QString::fromUtf8(decoder->name)); | |
86 | ||
87 | // Include the newly created decode channels in the channel lists | |
88 | update_channel_list(); | |
89 | ||
90 | stack_config_changed_ = true; | |
91 | auto_assign_signals(dec); | |
92 | commit_decoder_channels(); | |
93 | begin_decode(); | |
94 | } | |
95 | ||
96 | void DecodeSignal::remove_decoder(int index) | |
97 | { | |
98 | assert(index >= 0); | |
99 | assert(index < (int)stack_.size()); | |
100 | ||
101 | // Find the decoder in the stack | |
102 | auto iter = stack_.begin(); | |
103 | for (int i = 0; i < index; i++, iter++) | |
104 | assert(iter != stack_.end()); | |
105 | ||
106 | // Delete the element | |
107 | stack_.erase(iter); | |
108 | ||
109 | // Update channels and decoded data | |
110 | stack_config_changed_ = true; | |
111 | update_channel_list(); | |
112 | begin_decode(); | |
113 | } | |
114 | ||
115 | bool DecodeSignal::toggle_decoder_visibility(int index) | |
116 | { | |
117 | auto iter = stack_.cbegin(); | |
118 | for (int i = 0; i < index; i++, iter++) | |
119 | assert(iter != stack_.end()); | |
120 | ||
121 | shared_ptr<Decoder> dec = *iter; | |
122 | ||
123 | // Toggle decoder visibility | |
124 | bool state = false; | |
125 | if (dec) { | |
126 | state = !dec->shown(); | |
127 | dec->show(state); | |
128 | } | |
129 | ||
130 | return state; | |
131 | } | |
132 | ||
133 | void DecodeSignal::reset_decode(bool shutting_down) | |
134 | { | |
135 | if (stack_config_changed_ || shutting_down) | |
136 | stop_srd_session(); | |
137 | else | |
138 | terminate_srd_session(); | |
139 | ||
140 | if (decode_thread_.joinable()) { | |
141 | decode_interrupt_ = true; | |
142 | decode_input_cond_.notify_one(); | |
143 | decode_thread_.join(); | |
144 | } | |
145 | ||
146 | if (logic_mux_thread_.joinable()) { | |
147 | logic_mux_interrupt_ = true; | |
148 | logic_mux_cond_.notify_one(); | |
149 | logic_mux_thread_.join(); | |
150 | } | |
151 | ||
152 | class_rows_.clear(); | |
153 | current_segment_id_ = 0; | |
154 | segments_.clear(); | |
155 | ||
156 | logic_mux_data_.reset(); | |
157 | logic_mux_data_invalid_ = true; | |
158 | ||
159 | if (!error_message_.isEmpty()) { | |
160 | error_message_ = QString(); | |
161 | // TODO Emulate noquote() | |
162 | qDebug().nospace() << name() << ": Error cleared"; | |
163 | } | |
164 | ||
165 | decode_reset(); | |
166 | } | |
167 | ||
168 | void DecodeSignal::begin_decode() | |
169 | { | |
170 | if (decode_thread_.joinable()) { | |
171 | decode_interrupt_ = true; | |
172 | decode_input_cond_.notify_one(); | |
173 | decode_thread_.join(); | |
174 | } | |
175 | ||
176 | if (logic_mux_thread_.joinable()) { | |
177 | logic_mux_interrupt_ = true; | |
178 | logic_mux_cond_.notify_one(); | |
179 | logic_mux_thread_.join(); | |
180 | } | |
181 | ||
182 | reset_decode(); | |
183 | ||
184 | if (stack_.size() == 0) { | |
185 | set_error_message(tr("No decoders")); | |
186 | return; | |
187 | } | |
188 | ||
189 | assert(channels_.size() > 0); | |
190 | ||
191 | if (get_assigned_signal_count() == 0) { | |
192 | set_error_message(tr("There are no channels assigned to this decoder")); | |
193 | return; | |
194 | } | |
195 | ||
196 | // Make sure that all assigned channels still provide logic data | |
197 | // (can happen when a converted signal was assigned but the | |
198 | // conversion removed in the meanwhile) | |
199 | for (data::DecodeChannel &ch : channels_) | |
200 | if (ch.assigned_signal && !(ch.assigned_signal->logic_data() != nullptr)) | |
201 | ch.assigned_signal = nullptr; | |
202 | ||
203 | // Check that all decoders have the required channels | |
204 | for (const shared_ptr<decode::Decoder> &dec : stack_) | |
205 | if (!dec->have_required_channels()) { | |
206 | set_error_message(tr("One or more required channels " | |
207 | "have not been specified")); | |
208 | return; | |
209 | } | |
210 | ||
211 | // Map out all the annotation classes | |
212 | int row_index = 0; | |
213 | for (const shared_ptr<decode::Decoder> &dec : stack_) { | |
214 | assert(dec); | |
215 | const srd_decoder *const decc = dec->decoder(); | |
216 | assert(dec->decoder()); | |
217 | ||
218 | for (const GSList *l = decc->annotation_rows; l; l = l->next) { | |
219 | const srd_decoder_annotation_row *const ann_row = | |
220 | (srd_decoder_annotation_row *)l->data; | |
221 | assert(ann_row); | |
222 | ||
223 | const Row row(row_index++, decc, ann_row); | |
224 | ||
225 | for (const GSList *ll = ann_row->ann_classes; | |
226 | ll; ll = ll->next) | |
227 | class_rows_[make_pair(decc, | |
228 | GPOINTER_TO_INT(ll->data))] = row; | |
229 | } | |
230 | } | |
231 | ||
232 | // Free the logic data and its segment(s) if it needs to be updated | |
233 | if (logic_mux_data_invalid_) | |
234 | logic_mux_data_.reset(); | |
235 | ||
236 | if (!logic_mux_data_) { | |
237 | const uint32_t ch_count = get_assigned_signal_count(); | |
238 | logic_mux_unit_size_ = (ch_count + 7) / 8; | |
239 | logic_mux_data_ = make_shared<Logic>(ch_count); | |
240 | } | |
241 | ||
242 | // Receive notifications when new sample data is available | |
243 | connect_input_notifiers(); | |
244 | ||
245 | if (get_input_segment_count() == 0) { | |
246 | set_error_message(tr("No input data")); | |
247 | return; | |
248 | } | |
249 | ||
250 | // Make sure the logic output data is complete and up-to-date | |
251 | logic_mux_interrupt_ = false; | |
252 | logic_mux_thread_ = std::thread(&DecodeSignal::logic_mux_proc, this); | |
253 | ||
254 | // Decode the muxed logic data | |
255 | decode_interrupt_ = false; | |
256 | decode_thread_ = std::thread(&DecodeSignal::decode_proc, this); | |
257 | } | |
258 | ||
259 | QString DecodeSignal::error_message() const | |
260 | { | |
261 | lock_guard<mutex> lock(output_mutex_); | |
262 | return error_message_; | |
263 | } | |
264 | ||
265 | const vector<data::DecodeChannel> DecodeSignal::get_channels() const | |
266 | { | |
267 | return channels_; | |
268 | } | |
269 | ||
270 | void DecodeSignal::auto_assign_signals(const shared_ptr<Decoder> dec) | |
271 | { | |
272 | bool new_assignment = false; | |
273 | ||
274 | // Try to auto-select channels that don't have signals assigned yet | |
275 | for (data::DecodeChannel &ch : channels_) { | |
276 | // If a decoder is given, auto-assign only its channels | |
277 | if (dec && (ch.decoder_ != dec)) | |
278 | continue; | |
279 | ||
280 | if (ch.assigned_signal) | |
281 | continue; | |
282 | ||
283 | const QString ch_name = ch.name.toLower(); | |
284 | ||
285 | shared_ptr<data::SignalBase> match; | |
286 | for (shared_ptr<data::SignalBase> s : session_.signalbases()) { | |
287 | if (!s->enabled()) | |
288 | continue; | |
289 | ||
290 | const QString s_name = s->name().toLower(); | |
291 | ||
292 | if (s->logic_data() && | |
293 | ((ch_name.contains(s_name)) || (s_name.contains(ch_name)))) { | |
294 | if (!match) | |
295 | match = s; | |
296 | else { | |
297 | // Only replace an existing match if it matches more characters | |
298 | int old_unmatched = ch_name.length() - match->name().length(); | |
299 | int new_unmatched = ch_name.length() - s->name().length(); | |
300 | if (abs(new_unmatched) < abs(old_unmatched)) | |
301 | match = s; | |
302 | } | |
303 | } | |
304 | } | |
305 | ||
306 | if (match) { | |
307 | ch.assigned_signal = match.get(); | |
308 | new_assignment = true; | |
309 | } | |
310 | } | |
311 | ||
312 | if (new_assignment) { | |
313 | logic_mux_data_invalid_ = true; | |
314 | stack_config_changed_ = true; | |
315 | commit_decoder_channels(); | |
316 | channels_updated(); | |
317 | } | |
318 | } | |
319 | ||
320 | void DecodeSignal::assign_signal(const uint16_t channel_id, const SignalBase *signal) | |
321 | { | |
322 | for (data::DecodeChannel &ch : channels_) | |
323 | if (ch.id == channel_id) { | |
324 | ch.assigned_signal = signal; | |
325 | logic_mux_data_invalid_ = true; | |
326 | } | |
327 | ||
328 | stack_config_changed_ = true; | |
329 | commit_decoder_channels(); | |
330 | channels_updated(); | |
331 | begin_decode(); | |
332 | } | |
333 | ||
334 | int DecodeSignal::get_assigned_signal_count() const | |
335 | { | |
336 | // Count all channels that have a signal assigned to them | |
337 | return count_if(channels_.begin(), channels_.end(), | |
338 | [](data::DecodeChannel ch) { return ch.assigned_signal; }); | |
339 | } | |
340 | ||
341 | void DecodeSignal::set_initial_pin_state(const uint16_t channel_id, const int init_state) | |
342 | { | |
343 | for (data::DecodeChannel &ch : channels_) | |
344 | if (ch.id == channel_id) | |
345 | ch.initial_pin_state = init_state; | |
346 | ||
347 | stack_config_changed_ = true; | |
348 | channels_updated(); | |
349 | begin_decode(); | |
350 | } | |
351 | ||
352 | double DecodeSignal::samplerate() const | |
353 | { | |
354 | double result = 0; | |
355 | ||
356 | // TODO For now, we simply return the first samplerate that we have | |
357 | if (segments_.size() > 0) | |
358 | result = segments_.front().samplerate; | |
359 | ||
360 | return result; | |
361 | } | |
362 | ||
363 | const pv::util::Timestamp DecodeSignal::start_time() const | |
364 | { | |
365 | pv::util::Timestamp result; | |
366 | ||
367 | // TODO For now, we simply return the first start time that we have | |
368 | if (segments_.size() > 0) | |
369 | result = segments_.front().start_time; | |
370 | ||
371 | return result; | |
372 | } | |
373 | ||
374 | int64_t DecodeSignal::get_working_sample_count(uint32_t segment_id) const | |
375 | { | |
376 | // The working sample count is the highest sample number for | |
377 | // which all used signals have data available, so go through all | |
378 | // channels and use the lowest overall sample count of the segment | |
379 | ||
380 | int64_t count = std::numeric_limits<int64_t>::max(); | |
381 | bool no_signals_assigned = true; | |
382 | ||
383 | for (const data::DecodeChannel &ch : channels_) | |
384 | if (ch.assigned_signal) { | |
385 | no_signals_assigned = false; | |
386 | ||
387 | const shared_ptr<Logic> logic_data = ch.assigned_signal->logic_data(); | |
388 | if (!logic_data || logic_data->logic_segments().empty()) | |
389 | return 0; | |
390 | ||
391 | try { | |
392 | const shared_ptr<LogicSegment> segment = logic_data->logic_segments().at(segment_id); | |
393 | count = min(count, (int64_t)segment->get_sample_count()); | |
394 | } catch (out_of_range&) { | |
395 | return 0; | |
396 | } | |
397 | } | |
398 | ||
399 | return (no_signals_assigned ? 0 : count); | |
400 | } | |
401 | ||
402 | int64_t DecodeSignal::get_decoded_sample_count(uint32_t segment_id, | |
403 | bool include_processing) const | |
404 | { | |
405 | lock_guard<mutex> decode_lock(output_mutex_); | |
406 | ||
407 | int64_t result = 0; | |
408 | ||
409 | try { | |
410 | const DecodeSegment *segment = &(segments_.at(segment_id)); | |
411 | if (include_processing) | |
412 | result = segment->samples_decoded_incl; | |
413 | else | |
414 | result = segment->samples_decoded_excl; | |
415 | } catch (out_of_range&) { | |
416 | // Do nothing | |
417 | } | |
418 | ||
419 | return result; | |
420 | } | |
421 | ||
422 | vector<Row> DecodeSignal::visible_rows() const | |
423 | { | |
424 | lock_guard<mutex> lock(output_mutex_); | |
425 | ||
426 | vector<Row> rows; | |
427 | ||
428 | for (const shared_ptr<decode::Decoder> &dec : stack_) { | |
429 | assert(dec); | |
430 | if (!dec->shown()) | |
431 | continue; | |
432 | ||
433 | const srd_decoder *const decc = dec->decoder(); | |
434 | assert(dec->decoder()); | |
435 | ||
436 | int row_index = 0; | |
437 | // Add a row for the decoder if it doesn't have a row list | |
438 | if (!decc->annotation_rows) | |
439 | rows.emplace_back(row_index++, decc); | |
440 | ||
441 | // Add the decoder rows | |
442 | for (const GSList *l = decc->annotation_rows; l; l = l->next) { | |
443 | const srd_decoder_annotation_row *const ann_row = | |
444 | (srd_decoder_annotation_row *)l->data; | |
445 | assert(ann_row); | |
446 | rows.emplace_back(row_index++, decc, ann_row); | |
447 | } | |
448 | } | |
449 | ||
450 | return rows; | |
451 | } | |
452 | ||
453 | void DecodeSignal::get_annotation_subset( | |
454 | vector<pv::data::decode::Annotation> &dest, | |
455 | const decode::Row &row, uint32_t segment_id, uint64_t start_sample, | |
456 | uint64_t end_sample) const | |
457 | { | |
458 | lock_guard<mutex> lock(output_mutex_); | |
459 | ||
460 | try { | |
461 | const DecodeSegment *segment = &(segments_.at(segment_id)); | |
462 | const map<const decode::Row, decode::RowData> *rows = | |
463 | &(segment->annotation_rows); | |
464 | ||
465 | const auto iter = rows->find(row); | |
466 | if (iter != rows->end()) | |
467 | (*iter).second.get_annotation_subset(dest, | |
468 | start_sample, end_sample); | |
469 | } catch (out_of_range&) { | |
470 | // Do nothing | |
471 | } | |
472 | } | |
473 | ||
474 | void DecodeSignal::save_settings(QSettings &settings) const | |
475 | { | |
476 | SignalBase::save_settings(settings); | |
477 | ||
478 | settings.setValue("decoders", (int)(stack_.size())); | |
479 | ||
480 | // Save decoder stack | |
481 | int decoder_idx = 0; | |
482 | for (shared_ptr<decode::Decoder> decoder : stack_) { | |
483 | settings.beginGroup("decoder" + QString::number(decoder_idx++)); | |
484 | ||
485 | settings.setValue("id", decoder->decoder()->id); | |
486 | ||
487 | // Save decoder options | |
488 | const map<string, GVariant*>& options = decoder->options(); | |
489 | ||
490 | settings.setValue("options", (int)options.size()); | |
491 | ||
492 | // Note: decode::Decoder::options() returns only the options | |
493 | // that differ from the default. See binding::Decoder::getter() | |
494 | int i = 0; | |
495 | for (auto option : options) { | |
496 | settings.beginGroup("option" + QString::number(i)); | |
497 | settings.setValue("name", QString::fromStdString(option.first)); | |
498 | GlobalSettings::store_gvariant(settings, option.second); | |
499 | settings.endGroup(); | |
500 | i++; | |
501 | } | |
502 | ||
503 | settings.endGroup(); | |
504 | } | |
505 | ||
506 | // Save channel mapping | |
507 | settings.setValue("channels", (int)channels_.size()); | |
508 | ||
509 | for (unsigned int channel_id = 0; channel_id < channels_.size(); channel_id++) { | |
510 | auto channel = find_if(channels_.begin(), channels_.end(), | |
511 | [&](data::DecodeChannel ch) { return ch.id == channel_id; }); | |
512 | ||
513 | if (channel == channels_.end()) { | |
514 | qDebug() << "ERROR: Gap in channel index:" << channel_id; | |
515 | continue; | |
516 | } | |
517 | ||
518 | settings.beginGroup("channel" + QString::number(channel_id)); | |
519 | ||
520 | settings.setValue("name", channel->name); // Useful for debugging | |
521 | settings.setValue("initial_pin_state", channel->initial_pin_state); | |
522 | ||
523 | if (channel->assigned_signal) | |
524 | settings.setValue("assigned_signal_name", channel->assigned_signal->name()); | |
525 | ||
526 | settings.endGroup(); | |
527 | } | |
528 | } | |
529 | ||
530 | void DecodeSignal::restore_settings(QSettings &settings) | |
531 | { | |
532 | SignalBase::restore_settings(settings); | |
533 | ||
534 | // Restore decoder stack | |
535 | GSList *dec_list = g_slist_copy((GSList*)srd_decoder_list()); | |
536 | ||
537 | int decoders = settings.value("decoders").toInt(); | |
538 | ||
539 | for (int decoder_idx = 0; decoder_idx < decoders; decoder_idx++) { | |
540 | settings.beginGroup("decoder" + QString::number(decoder_idx)); | |
541 | ||
542 | QString id = settings.value("id").toString(); | |
543 | ||
544 | for (GSList *entry = dec_list; entry; entry = entry->next) { | |
545 | const srd_decoder *dec = (srd_decoder*)entry->data; | |
546 | if (!dec) | |
547 | continue; | |
548 | ||
549 | if (QString::fromUtf8(dec->id) == id) { | |
550 | shared_ptr<decode::Decoder> decoder = | |
551 | make_shared<decode::Decoder>(dec); | |
552 | ||
553 | stack_.push_back(decoder); | |
554 | ||
555 | // Restore decoder options that differ from their default | |
556 | int options = settings.value("options").toInt(); | |
557 | ||
558 | for (int i = 0; i < options; i++) { | |
559 | settings.beginGroup("option" + QString::number(i)); | |
560 | QString name = settings.value("name").toString(); | |
561 | GVariant *value = GlobalSettings::restore_gvariant(settings); | |
562 | decoder->set_option(name.toUtf8(), value); | |
563 | settings.endGroup(); | |
564 | } | |
565 | ||
566 | // Include the newly created decode channels in the channel lists | |
567 | update_channel_list(); | |
568 | break; | |
569 | } | |
570 | } | |
571 | ||
572 | settings.endGroup(); | |
573 | channels_updated(); | |
574 | } | |
575 | ||
576 | // Restore channel mapping | |
577 | unsigned int channels = settings.value("channels").toInt(); | |
578 | ||
579 | const unordered_set< shared_ptr<data::SignalBase> > signalbases = | |
580 | session_.signalbases(); | |
581 | ||
582 | for (unsigned int channel_id = 0; channel_id < channels; channel_id++) { | |
583 | auto channel = find_if(channels_.begin(), channels_.end(), | |
584 | [&](data::DecodeChannel ch) { return ch.id == channel_id; }); | |
585 | ||
586 | if (channel == channels_.end()) { | |
587 | qDebug() << "ERROR: Non-existant channel index:" << channel_id; | |
588 | continue; | |
589 | } | |
590 | ||
591 | settings.beginGroup("channel" + QString::number(channel_id)); | |
592 | ||
593 | QString assigned_signal_name = settings.value("assigned_signal_name").toString(); | |
594 | ||
595 | for (shared_ptr<data::SignalBase> signal : signalbases) | |
596 | if (signal->name() == assigned_signal_name) | |
597 | channel->assigned_signal = signal.get(); | |
598 | ||
599 | channel->initial_pin_state = settings.value("initial_pin_state").toInt(); | |
600 | ||
601 | settings.endGroup(); | |
602 | } | |
603 | ||
604 | // Update the internal structures | |
605 | stack_config_changed_ = true; | |
606 | update_channel_list(); | |
607 | commit_decoder_channels(); | |
608 | ||
609 | begin_decode(); | |
610 | } | |
611 | ||
612 | void DecodeSignal::set_error_message(QString msg) | |
613 | { | |
614 | error_message_ = msg; | |
615 | // TODO Emulate noquote() | |
616 | qDebug().nospace() << name() << ": " << msg; | |
617 | } | |
618 | ||
619 | uint32_t DecodeSignal::get_input_segment_count() const | |
620 | { | |
621 | uint64_t count = std::numeric_limits<uint64_t>::max(); | |
622 | bool no_signals_assigned = true; | |
623 | ||
624 | for (const data::DecodeChannel &ch : channels_) | |
625 | if (ch.assigned_signal) { | |
626 | no_signals_assigned = false; | |
627 | ||
628 | const shared_ptr<Logic> logic_data = ch.assigned_signal->logic_data(); | |
629 | if (!logic_data || logic_data->logic_segments().empty()) | |
630 | return 0; | |
631 | ||
632 | // Find the min value of all segment counts | |
633 | if ((uint64_t)(logic_data->logic_segments().size()) < count) | |
634 | count = logic_data->logic_segments().size(); | |
635 | } | |
636 | ||
637 | return (no_signals_assigned ? 0 : count); | |
638 | } | |
639 | ||
640 | uint32_t DecodeSignal::get_input_samplerate(uint32_t segment_id) const | |
641 | { | |
642 | double samplerate = 0; | |
643 | ||
644 | for (const data::DecodeChannel &ch : channels_) | |
645 | if (ch.assigned_signal) { | |
646 | const shared_ptr<Logic> logic_data = ch.assigned_signal->logic_data(); | |
647 | if (!logic_data || logic_data->logic_segments().empty()) | |
648 | continue; | |
649 | ||
650 | try { | |
651 | const shared_ptr<LogicSegment> segment = logic_data->logic_segments().at(segment_id); | |
652 | samplerate = segment->samplerate(); | |
653 | } catch (out_of_range&) { | |
654 | // Do nothing | |
655 | } | |
656 | break; | |
657 | } | |
658 | ||
659 | return samplerate; | |
660 | } | |
661 | ||
662 | void DecodeSignal::update_channel_list() | |
663 | { | |
664 | vector<data::DecodeChannel> prev_channels = channels_; | |
665 | channels_.clear(); | |
666 | ||
667 | uint16_t id = 0; | |
668 | ||
669 | // Copy existing entries, create new as needed | |
670 | for (shared_ptr<Decoder> decoder : stack_) { | |
671 | const srd_decoder* srd_d = decoder->decoder(); | |
672 | const GSList *l; | |
673 | ||
674 | // Mandatory channels | |
675 | for (l = srd_d->channels; l; l = l->next) { | |
676 | const struct srd_channel *const pdch = (struct srd_channel *)l->data; | |
677 | bool ch_added = false; | |
678 | ||
679 | // Copy but update ID if this channel was in the list before | |
680 | for (data::DecodeChannel &ch : prev_channels) | |
681 | if (ch.pdch_ == pdch) { | |
682 | ch.id = id++; | |
683 | channels_.push_back(ch); | |
684 | ch_added = true; | |
685 | break; | |
686 | } | |
687 | ||
688 | if (!ch_added) { | |
689 | // Create new entry without a mapped signal | |
690 | data::DecodeChannel ch = {id++, 0, false, nullptr, | |
691 | QString::fromUtf8(pdch->name), QString::fromUtf8(pdch->desc), | |
692 | SRD_INITIAL_PIN_SAME_AS_SAMPLE0, decoder, pdch}; | |
693 | channels_.push_back(ch); | |
694 | } | |
695 | } | |
696 | ||
697 | // Optional channels | |
698 | for (l = srd_d->opt_channels; l; l = l->next) { | |
699 | const struct srd_channel *const pdch = (struct srd_channel *)l->data; | |
700 | bool ch_added = false; | |
701 | ||
702 | // Copy but update ID if this channel was in the list before | |
703 | for (data::DecodeChannel &ch : prev_channels) | |
704 | if (ch.pdch_ == pdch) { | |
705 | ch.id = id++; | |
706 | channels_.push_back(ch); | |
707 | ch_added = true; | |
708 | break; | |
709 | } | |
710 | ||
711 | if (!ch_added) { | |
712 | // Create new entry without a mapped signal | |
713 | data::DecodeChannel ch = {id++, 0, true, nullptr, | |
714 | QString::fromUtf8(pdch->name), QString::fromUtf8(pdch->desc), | |
715 | SRD_INITIAL_PIN_SAME_AS_SAMPLE0, decoder, pdch}; | |
716 | channels_.push_back(ch); | |
717 | } | |
718 | } | |
719 | } | |
720 | ||
721 | // Invalidate the logic output data if the channel assignment changed | |
722 | if (prev_channels.size() != channels_.size()) { | |
723 | // The number of channels changed, there's definitely a difference | |
724 | logic_mux_data_invalid_ = true; | |
725 | } else { | |
726 | // Same number but assignment may still differ, so compare all channels | |
727 | for (size_t i = 0; i < channels_.size(); i++) { | |
728 | const data::DecodeChannel &p_ch = prev_channels[i]; | |
729 | const data::DecodeChannel &ch = channels_[i]; | |
730 | ||
731 | if ((p_ch.pdch_ != ch.pdch_) || | |
732 | (p_ch.assigned_signal != ch.assigned_signal)) { | |
733 | logic_mux_data_invalid_ = true; | |
734 | break; | |
735 | } | |
736 | } | |
737 | ||
738 | } | |
739 | ||
740 | channels_updated(); | |
741 | } | |
742 | ||
743 | void DecodeSignal::commit_decoder_channels() | |
744 | { | |
745 | // Submit channel list to every decoder, containing only the relevant channels | |
746 | for (shared_ptr<decode::Decoder> dec : stack_) { | |
747 | vector<data::DecodeChannel*> channel_list; | |
748 | ||
749 | for (data::DecodeChannel &ch : channels_) | |
750 | if (ch.decoder_ == dec) | |
751 | channel_list.push_back(&ch); | |
752 | ||
753 | dec->set_channels(channel_list); | |
754 | } | |
755 | ||
756 | // Channel bit IDs must be in sync with the channel's apperance in channels_ | |
757 | int id = 0; | |
758 | for (data::DecodeChannel &ch : channels_) | |
759 | if (ch.assigned_signal) | |
760 | ch.bit_id = id++; | |
761 | } | |
762 | ||
763 | void DecodeSignal::mux_logic_samples(uint32_t segment_id, const int64_t start, const int64_t end) | |
764 | { | |
765 | // Enforce end to be greater than start | |
766 | if (end <= start) | |
767 | return; | |
768 | ||
769 | // Fetch the channel segments and their data | |
770 | vector<shared_ptr<LogicSegment> > segments; | |
771 | vector<const uint8_t*> signal_data; | |
772 | vector<uint8_t> signal_in_bytepos; | |
773 | vector<uint8_t> signal_in_bitpos; | |
774 | ||
775 | for (data::DecodeChannel &ch : channels_) | |
776 | if (ch.assigned_signal) { | |
777 | const shared_ptr<Logic> logic_data = ch.assigned_signal->logic_data(); | |
778 | ||
779 | shared_ptr<LogicSegment> segment; | |
780 | try { | |
781 | segment = logic_data->logic_segments().at(segment_id); | |
782 | } catch (out_of_range&) { | |
783 | qDebug() << "Muxer error for" << name() << ":" << ch.assigned_signal->name() \ | |
784 | << "has no logic segment" << segment_id; | |
785 | return; | |
786 | } | |
787 | segments.push_back(segment); | |
788 | ||
789 | uint8_t* data = new uint8_t[(end - start) * segment->unit_size()]; | |
790 | segment->get_samples(start, end, data); | |
791 | signal_data.push_back(data); | |
792 | ||
793 | const int bitpos = ch.assigned_signal->logic_bit_index(); | |
794 | signal_in_bytepos.push_back(bitpos / 8); | |
795 | signal_in_bitpos.push_back(bitpos % 8); | |
796 | } | |
797 | ||
798 | ||
799 | shared_ptr<LogicSegment> output_segment; | |
800 | try { | |
801 | output_segment = logic_mux_data_->logic_segments().at(segment_id); | |
802 | } catch (out_of_range&) { | |
803 | qDebug() << "Muxer error for" << name() << ": no logic mux segment" \ | |
804 | << segment_id << "in mux_logic_samples(), mux segments size is" \ | |
805 | << logic_mux_data_->logic_segments().size(); | |
806 | return; | |
807 | } | |
808 | ||
809 | // Perform the muxing of signal data into the output data | |
810 | uint8_t* output = new uint8_t[(end - start) * output_segment->unit_size()]; | |
811 | unsigned int signal_count = signal_data.size(); | |
812 | ||
813 | for (int64_t sample_cnt = 0; !logic_mux_interrupt_ && (sample_cnt < (end - start)); | |
814 | sample_cnt++) { | |
815 | ||
816 | int bitpos = 0; | |
817 | uint8_t bytepos = 0; | |
818 | ||
819 | const int out_sample_pos = sample_cnt * output_segment->unit_size(); | |
820 | for (unsigned int i = 0; i < output_segment->unit_size(); i++) | |
821 | output[out_sample_pos + i] = 0; | |
822 | ||
823 | for (unsigned int i = 0; i < signal_count; i++) { | |
824 | const int in_sample_pos = sample_cnt * segments[i]->unit_size(); | |
825 | const uint8_t in_sample = 1 & | |
826 | ((signal_data[i][in_sample_pos + signal_in_bytepos[i]]) >> (signal_in_bitpos[i])); | |
827 | ||
828 | const uint8_t out_sample = output[out_sample_pos + bytepos]; | |
829 | ||
830 | output[out_sample_pos + bytepos] = out_sample | (in_sample << bitpos); | |
831 | ||
832 | bitpos++; | |
833 | if (bitpos > 7) { | |
834 | bitpos = 0; | |
835 | bytepos++; | |
836 | } | |
837 | } | |
838 | } | |
839 | ||
840 | output_segment->append_payload(output, (end - start) * output_segment->unit_size()); | |
841 | delete[] output; | |
842 | ||
843 | for (const uint8_t* data : signal_data) | |
844 | delete[] data; | |
845 | } | |
846 | ||
847 | void DecodeSignal::logic_mux_proc() | |
848 | { | |
849 | uint32_t segment_id = 0; | |
850 | ||
851 | assert(logic_mux_data_); | |
852 | ||
853 | // Create initial logic mux segment | |
854 | shared_ptr<LogicSegment> output_segment = | |
855 | make_shared<LogicSegment>(*logic_mux_data_, segment_id, | |
856 | logic_mux_unit_size_, 0); | |
857 | logic_mux_data_->push_segment(output_segment); | |
858 | ||
859 | output_segment->set_samplerate(get_input_samplerate(0)); | |
860 | ||
861 | do { | |
862 | const uint64_t input_sample_count = get_working_sample_count(segment_id); | |
863 | const uint64_t output_sample_count = output_segment->get_sample_count(); | |
864 | ||
865 | const uint64_t samples_to_process = | |
866 | (input_sample_count > output_sample_count) ? | |
867 | (input_sample_count - output_sample_count) : 0; | |
868 | ||
869 | // Process the samples if necessary... | |
870 | if (samples_to_process > 0) { | |
871 | const uint64_t unit_size = output_segment->unit_size(); | |
872 | const uint64_t chunk_sample_count = DecodeChunkLength / unit_size; | |
873 | ||
874 | uint64_t processed_samples = 0; | |
875 | do { | |
876 | const uint64_t start_sample = output_sample_count + processed_samples; | |
877 | const uint64_t sample_count = | |
878 | min(samples_to_process - processed_samples, chunk_sample_count); | |
879 | ||
880 | mux_logic_samples(segment_id, start_sample, start_sample + sample_count); | |
881 | processed_samples += sample_count; | |
882 | ||
883 | // ...and process the newly muxed logic data | |
884 | decode_input_cond_.notify_one(); | |
885 | } while (!logic_mux_interrupt_ && (processed_samples < samples_to_process)); | |
886 | } | |
887 | ||
888 | if (samples_to_process == 0) { | |
889 | // TODO Optimize this by caching the input segment count and only | |
890 | // querying it when the cached value was reached | |
891 | if (segment_id < get_input_segment_count() - 1) { | |
892 | // Process next segment | |
893 | segment_id++; | |
894 | ||
895 | output_segment = | |
896 | make_shared<LogicSegment>(*logic_mux_data_, segment_id, | |
897 | logic_mux_unit_size_, 0); | |
898 | logic_mux_data_->push_segment(output_segment); | |
899 | ||
900 | output_segment->set_samplerate(get_input_samplerate(segment_id)); | |
901 | ||
902 | } else { | |
903 | // All segments have been processed | |
904 | logic_mux_data_invalid_ = false; | |
905 | ||
906 | // Wait for more input | |
907 | unique_lock<mutex> logic_mux_lock(logic_mux_mutex_); | |
908 | logic_mux_cond_.wait(logic_mux_lock); | |
909 | } | |
910 | } | |
911 | ||
912 | } while (!logic_mux_interrupt_); | |
913 | } | |
914 | ||
915 | void DecodeSignal::decode_data( | |
916 | const int64_t abs_start_samplenum, const int64_t sample_count, | |
917 | const shared_ptr<LogicSegment> input_segment) | |
918 | { | |
919 | const int64_t unit_size = input_segment->unit_size(); | |
920 | const int64_t chunk_sample_count = DecodeChunkLength / unit_size; | |
921 | ||
922 | for (int64_t i = abs_start_samplenum; | |
923 | error_message_.isEmpty() && !decode_interrupt_ && | |
924 | (i < (abs_start_samplenum + sample_count)); | |
925 | i += chunk_sample_count) { | |
926 | ||
927 | const int64_t chunk_end = min(i + chunk_sample_count, | |
928 | abs_start_samplenum + sample_count); | |
929 | ||
930 | { | |
931 | lock_guard<mutex> lock(output_mutex_); | |
932 | // Update the sample count showing the samples including currently processed ones | |
933 | segments_.at(current_segment_id_).samples_decoded_incl = chunk_end; | |
934 | } | |
935 | ||
936 | int64_t data_size = (chunk_end - i) * unit_size; | |
937 | uint8_t* chunk = new uint8_t[data_size]; | |
938 | input_segment->get_samples(i, chunk_end, chunk); | |
939 | ||
940 | if (srd_session_send(srd_session_, i, chunk_end, chunk, | |
941 | data_size, unit_size) != SRD_OK) | |
942 | set_error_message(tr("Decoder reported an error")); | |
943 | ||
944 | delete[] chunk; | |
945 | ||
946 | { | |
947 | lock_guard<mutex> lock(output_mutex_); | |
948 | // Now that all samples are processed, the exclusive sample count catches up | |
949 | segments_.at(current_segment_id_).samples_decoded_excl = chunk_end; | |
950 | } | |
951 | ||
952 | // Notify the frontend that we processed some data and | |
953 | // possibly have new annotations as well | |
954 | new_annotations(); | |
955 | } | |
956 | } | |
957 | ||
958 | void DecodeSignal::decode_proc() | |
959 | { | |
960 | current_segment_id_ = 0; | |
961 | ||
962 | // If there is no input data available yet, wait until it is or we're interrupted | |
963 | if (logic_mux_data_->logic_segments().size() == 0) { | |
964 | unique_lock<mutex> input_wait_lock(input_mutex_); | |
965 | decode_input_cond_.wait(input_wait_lock); | |
966 | } | |
967 | ||
968 | if (decode_interrupt_) | |
969 | return; | |
970 | ||
971 | shared_ptr<LogicSegment> input_segment = logic_mux_data_->logic_segments().front(); | |
972 | assert(input_segment); | |
973 | ||
974 | // Create the initial segment and set its sample rate so that we can pass it to SRD | |
975 | create_decode_segment(); | |
976 | segments_.at(current_segment_id_).samplerate = input_segment->samplerate(); | |
977 | segments_.at(current_segment_id_).start_time = input_segment->start_time(); | |
978 | ||
979 | start_srd_session(); | |
980 | ||
981 | uint64_t sample_count = 0; | |
982 | uint64_t abs_start_samplenum = 0; | |
983 | do { | |
984 | // Keep processing new samples until we exhaust the input data | |
985 | do { | |
986 | lock_guard<mutex> input_lock(input_mutex_); | |
987 | sample_count = input_segment->get_sample_count() - abs_start_samplenum; | |
988 | ||
989 | if (sample_count > 0) { | |
990 | decode_data(abs_start_samplenum, sample_count, input_segment); | |
991 | abs_start_samplenum += sample_count; | |
992 | } | |
993 | } while (error_message_.isEmpty() && (sample_count > 0) && !decode_interrupt_); | |
994 | ||
995 | if (error_message_.isEmpty() && !decode_interrupt_ && sample_count == 0) { | |
996 | if (current_segment_id_ < logic_mux_data_->logic_segments().size() - 1) { | |
997 | // Process next segment | |
998 | current_segment_id_++; | |
999 | ||
1000 | try { | |
1001 | input_segment = logic_mux_data_->logic_segments().at(current_segment_id_); | |
1002 | } catch (out_of_range&) { | |
1003 | qDebug() << "Decode error for" << name() << ": no logic mux segment" \ | |
1004 | << current_segment_id_ << "in decode_proc(), mux segments size is" \ | |
1005 | << logic_mux_data_->logic_segments().size(); | |
1006 | return; | |
1007 | } | |
1008 | abs_start_samplenum = 0; | |
1009 | ||
1010 | // Create the next segment and set its metadata | |
1011 | create_decode_segment(); | |
1012 | segments_.at(current_segment_id_).samplerate = input_segment->samplerate(); | |
1013 | segments_.at(current_segment_id_).start_time = input_segment->start_time(); | |
1014 | ||
1015 | // Reset decoder state but keep the decoder stack intact | |
1016 | terminate_srd_session(); | |
1017 | } else { | |
1018 | // All segments have been processed | |
1019 | decode_finished(); | |
1020 | ||
1021 | // Wait for new input data or an interrupt was requested | |
1022 | unique_lock<mutex> input_wait_lock(input_mutex_); | |
1023 | decode_input_cond_.wait(input_wait_lock); | |
1024 | } | |
1025 | } | |
1026 | } while (error_message_.isEmpty() && !decode_interrupt_); | |
1027 | ||
1028 | // Potentially reap decoders when the application no longer is | |
1029 | // interested in their (pending) results. | |
1030 | if (decode_interrupt_) | |
1031 | terminate_srd_session(); | |
1032 | } | |
1033 | ||
1034 | void DecodeSignal::start_srd_session() | |
1035 | { | |
1036 | // If there were stack changes, the session has been destroyed by now, so if | |
1037 | // it hasn't been destroyed, we can just reset and re-use it | |
1038 | if (srd_session_) { | |
1039 | // When a decoder stack was created before, re-use it | |
1040 | // for the next stream of input data, after terminating | |
1041 | // potentially still executing operations, and resetting | |
1042 | // internal state. Skip the rather expensive (teardown | |
1043 | // and) construction of another decoder stack. | |
1044 | ||
1045 | // TODO Reduce redundancy, use a common code path for | |
1046 | // the meta/start sequence? | |
1047 | terminate_srd_session(); | |
1048 | ||
1049 | // Metadata is cleared also, so re-set it | |
1050 | uint64_t samplerate = 0; | |
1051 | if (segments_.size() > 0) | |
1052 | samplerate = segments_.at(current_segment_id_).samplerate; | |
1053 | if (samplerate) | |
1054 | srd_session_metadata_set(srd_session_, SRD_CONF_SAMPLERATE, | |
1055 | g_variant_new_uint64(samplerate)); | |
1056 | for (const shared_ptr<decode::Decoder> &dec : stack_) | |
1057 | dec->apply_all_options(); | |
1058 | srd_session_start(srd_session_); | |
1059 | ||
1060 | return; | |
1061 | } | |
1062 | ||
1063 | // Create the session | |
1064 | srd_session_new(&srd_session_); | |
1065 | assert(srd_session_); | |
1066 | ||
1067 | // Create the decoders | |
1068 | srd_decoder_inst *prev_di = nullptr; | |
1069 | for (const shared_ptr<decode::Decoder> &dec : stack_) { | |
1070 | srd_decoder_inst *const di = dec->create_decoder_inst(srd_session_); | |
1071 | ||
1072 | if (!di) { | |
1073 | set_error_message(tr("Failed to create decoder instance")); | |
1074 | srd_session_destroy(srd_session_); | |
1075 | srd_session_ = nullptr; | |
1076 | return; | |
1077 | } | |
1078 | ||
1079 | if (prev_di) | |
1080 | srd_inst_stack(srd_session_, prev_di, di); | |
1081 | ||
1082 | prev_di = di; | |
1083 | } | |
1084 | ||
1085 | // Start the session | |
1086 | if (segments_.size() > 0) | |
1087 | srd_session_metadata_set(srd_session_, SRD_CONF_SAMPLERATE, | |
1088 | g_variant_new_uint64(segments_.at(current_segment_id_).samplerate)); | |
1089 | ||
1090 | srd_pd_output_callback_add(srd_session_, SRD_OUTPUT_ANN, | |
1091 | DecodeSignal::annotation_callback, this); | |
1092 | ||
1093 | srd_session_start(srd_session_); | |
1094 | ||
1095 | // We just recreated the srd session, so all stack changes are applied now | |
1096 | stack_config_changed_ = false; | |
1097 | } | |
1098 | ||
1099 | void DecodeSignal::terminate_srd_session() | |
1100 | { | |
1101 | // Call the "terminate and reset" routine for the decoder stack | |
1102 | // (if available). This does not harm those stacks which already | |
1103 | // have completed their operation, and reduces response time for | |
1104 | // those stacks which still are processing data while the | |
1105 | // application no longer wants them to. | |
1106 | if (srd_session_) { | |
1107 | srd_session_terminate_reset(srd_session_); | |
1108 | ||
1109 | // Metadata is cleared also, so re-set it | |
1110 | uint64_t samplerate = 0; | |
1111 | if (segments_.size() > 0) | |
1112 | samplerate = segments_.at(current_segment_id_).samplerate; | |
1113 | if (samplerate) | |
1114 | srd_session_metadata_set(srd_session_, SRD_CONF_SAMPLERATE, | |
1115 | g_variant_new_uint64(samplerate)); | |
1116 | for (const shared_ptr<decode::Decoder> &dec : stack_) | |
1117 | dec->apply_all_options(); | |
1118 | } | |
1119 | } | |
1120 | ||
1121 | void DecodeSignal::stop_srd_session() | |
1122 | { | |
1123 | if (srd_session_) { | |
1124 | // Destroy the session | |
1125 | srd_session_destroy(srd_session_); | |
1126 | srd_session_ = nullptr; | |
1127 | ||
1128 | // Mark the decoder instances as non-existant since they were deleted | |
1129 | for (const shared_ptr<decode::Decoder> &dec : stack_) | |
1130 | dec->invalidate_decoder_inst(); | |
1131 | } | |
1132 | } | |
1133 | ||
1134 | void DecodeSignal::connect_input_notifiers() | |
1135 | { | |
1136 | // Disconnect the notification slot from the previous set of signals | |
1137 | disconnect(this, SLOT(on_data_cleared())); | |
1138 | disconnect(this, SLOT(on_data_received())); | |
1139 | ||
1140 | // Connect the currently used signals to our slot | |
1141 | for (data::DecodeChannel &ch : channels_) { | |
1142 | if (!ch.assigned_signal) | |
1143 | continue; | |
1144 | ||
1145 | const data::SignalBase *signal = ch.assigned_signal; | |
1146 | connect(signal, SIGNAL(samples_cleared()), | |
1147 | this, SLOT(on_data_cleared())); | |
1148 | connect(signal, SIGNAL(samples_added(uint64_t, uint64_t, uint64_t)), | |
1149 | this, SLOT(on_data_received())); | |
1150 | } | |
1151 | } | |
1152 | ||
1153 | void DecodeSignal::create_decode_segment() | |
1154 | { | |
1155 | // Create annotation segment | |
1156 | segments_.emplace_back(DecodeSegment()); | |
1157 | ||
1158 | // Add annotation classes | |
1159 | for (const shared_ptr<decode::Decoder> &dec : stack_) { | |
1160 | assert(dec); | |
1161 | const srd_decoder *const decc = dec->decoder(); | |
1162 | assert(dec->decoder()); | |
1163 | ||
1164 | int row_index = 0; | |
1165 | // Add a row for the decoder if it doesn't have a row list | |
1166 | if (!decc->annotation_rows) | |
1167 | (segments_.back().annotation_rows)[Row(row_index++, decc)] = | |
1168 | decode::RowData(); | |
1169 | ||
1170 | // Add the decoder rows | |
1171 | for (const GSList *l = decc->annotation_rows; l; l = l->next) { | |
1172 | const srd_decoder_annotation_row *const ann_row = | |
1173 | (srd_decoder_annotation_row *)l->data; | |
1174 | assert(ann_row); | |
1175 | ||
1176 | const Row row(row_index++, decc, ann_row); | |
1177 | ||
1178 | // Add a new empty row data object | |
1179 | (segments_.back().annotation_rows)[row] = | |
1180 | decode::RowData(); | |
1181 | } | |
1182 | } | |
1183 | } | |
1184 | ||
1185 | void DecodeSignal::annotation_callback(srd_proto_data *pdata, void *decode_signal) | |
1186 | { | |
1187 | assert(pdata); | |
1188 | assert(decode_signal); | |
1189 | ||
1190 | DecodeSignal *const ds = (DecodeSignal*)decode_signal; | |
1191 | assert(ds); | |
1192 | ||
1193 | if (ds->decode_interrupt_) | |
1194 | return; | |
1195 | ||
1196 | lock_guard<mutex> lock(ds->output_mutex_); | |
1197 | ||
1198 | // Find the row | |
1199 | assert(pdata->pdo); | |
1200 | assert(pdata->pdo->di); | |
1201 | const srd_decoder *const decc = pdata->pdo->di->decoder; | |
1202 | assert(decc); | |
1203 | ||
1204 | const srd_proto_data_annotation *const pda = | |
1205 | (const srd_proto_data_annotation*)pdata->data; | |
1206 | assert(pda); | |
1207 | ||
1208 | auto row_iter = ds->segments_.at(ds->current_segment_id_).annotation_rows.end(); | |
1209 | ||
1210 | // Try looking up the sub-row of this class | |
1211 | const auto format = pda->ann_class; | |
1212 | const auto r = ds->class_rows_.find(make_pair(decc, format)); | |
1213 | if (r != ds->class_rows_.end()) | |
1214 | row_iter = ds->segments_.at(ds->current_segment_id_).annotation_rows.find((*r).second); | |
1215 | else { | |
1216 | // Failing that, use the decoder as a key | |
1217 | row_iter = ds->segments_.at(ds->current_segment_id_).annotation_rows.find(Row(0, decc)); | |
1218 | } | |
1219 | ||
1220 | if (row_iter == ds->segments_.at(ds->current_segment_id_).annotation_rows.end()) { | |
1221 | qDebug() << "Unexpected annotation: decoder = " << decc << | |
1222 | ", format = " << format; | |
1223 | assert(false); | |
1224 | return; | |
1225 | } | |
1226 | ||
1227 | // Add the annotation | |
1228 | (*row_iter).second.emplace_annotation(pdata); | |
1229 | } | |
1230 | ||
1231 | void DecodeSignal::on_capture_state_changed(int state) | |
1232 | { | |
1233 | // If a new acquisition was started, we need to start decoding from scratch | |
1234 | if (state == Session::Running) { | |
1235 | logic_mux_data_invalid_ = true; | |
1236 | begin_decode(); | |
1237 | } | |
1238 | } | |
1239 | ||
1240 | void DecodeSignal::on_data_cleared() | |
1241 | { | |
1242 | reset_decode(); | |
1243 | } | |
1244 | ||
1245 | void DecodeSignal::on_data_received() | |
1246 | { | |
1247 | // If we detected a lack of input data when trying to start decoding, | |
1248 | // we have set an error message. Only try again if we now have data | |
1249 | // to work with | |
1250 | if ((!error_message_.isEmpty()) && (get_input_segment_count() == 0)) | |
1251 | return; | |
1252 | ||
1253 | if (!logic_mux_thread_.joinable()) | |
1254 | begin_decode(); | |
1255 | else | |
1256 | logic_mux_cond_.notify_one(); | |
1257 | } | |
1258 | ||
1259 | } // namespace data | |
1260 | } // namespace pv |