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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 <forward_list> | |
21 | #include <limits> | |
22 | ||
23 | #include <QDebug> | |
24 | ||
25 | #include "logic.hpp" | |
26 | #include "logicsegment.hpp" | |
27 | #include "decodesignal.hpp" | |
28 | #include "signaldata.hpp" | |
29 | ||
30 | #include <pv/binding/decoder.hpp> | |
31 | #include <pv/data/decode/decoder.hpp> | |
32 | #include <pv/data/decode/row.hpp> | |
33 | #include <pv/globalsettings.hpp> | |
34 | #include <pv/session.hpp> | |
35 | ||
36 | using std::forward_list; | |
37 | using std::lock_guard; | |
38 | using std::make_pair; | |
39 | using std::make_shared; | |
40 | using std::min; | |
41 | using std::out_of_range; | |
42 | using std::shared_ptr; | |
43 | using std::unique_lock; | |
44 | using pv::data::decode::Annotation; | |
45 | using pv::data::decode::Decoder; | |
46 | using pv::data::decode::Row; | |
47 | ||
48 | namespace pv { | |
49 | namespace data { | |
50 | ||
51 | const double DecodeSignal::DecodeMargin = 1.0; | |
52 | const double DecodeSignal::DecodeThreshold = 0.2; | |
53 | const int64_t DecodeSignal::DecodeChunkLength = 256 * 1024; | |
54 | ||
55 | ||
56 | DecodeSignal::DecodeSignal(pv::Session &session) : | |
57 | SignalBase(nullptr, SignalBase::DecodeChannel), | |
58 | session_(session), | |
59 | srd_session_(nullptr), | |
60 | logic_mux_data_invalid_(false), | |
61 | stack_config_changed_(true), | |
62 | current_segment_id_(0) | |
63 | { | |
64 | connect(&session_, SIGNAL(capture_state_changed(int)), | |
65 | this, SLOT(on_capture_state_changed(int))); | |
66 | } | |
67 | ||
68 | DecodeSignal::~DecodeSignal() | |
69 | { | |
70 | reset_decode(true); | |
71 | } | |
72 | ||
73 | const vector< shared_ptr<Decoder> >& DecodeSignal::decoder_stack() const | |
74 | { | |
75 | return stack_; | |
76 | } | |
77 | ||
78 | void DecodeSignal::stack_decoder(const srd_decoder *decoder) | |
79 | { | |
80 | assert(decoder); | |
81 | ||
82 | // Set name if this decoder is the first in the list or the name is unchanged | |
83 | const srd_decoder* prev_dec = | |
84 | stack_.empty() ? nullptr : stack_.back()->decoder(); | |
85 | const QString prev_dec_name = | |
86 | prev_dec ? QString::fromUtf8(prev_dec->name) : QString(); | |
87 | ||
88 | if ((stack_.empty()) || ((stack_.size() > 0) && (name() == prev_dec_name))) | |
89 | set_name(QString::fromUtf8(decoder->name)); | |
90 | ||
91 | const shared_ptr<Decoder> dec = make_shared<decode::Decoder>(decoder); | |
92 | stack_.push_back(dec); | |
93 | ||
94 | // Include the newly created decode channels in the channel lists | |
95 | update_channel_list(); | |
96 | ||
97 | stack_config_changed_ = true; | |
98 | auto_assign_signals(dec); | |
99 | commit_decoder_channels(); | |
100 | begin_decode(); | |
101 | } | |
102 | ||
103 | void DecodeSignal::remove_decoder(int index) | |
104 | { | |
105 | assert(index >= 0); | |
106 | assert(index < (int)stack_.size()); | |
107 | ||
108 | // Find the decoder in the stack | |
109 | auto iter = stack_.begin(); | |
110 | for (int i = 0; i < index; i++, iter++) | |
111 | assert(iter != stack_.end()); | |
112 | ||
113 | // Delete the element | |
114 | stack_.erase(iter); | |
115 | ||
116 | // Update channels and decoded data | |
117 | stack_config_changed_ = true; | |
118 | update_channel_list(); | |
119 | begin_decode(); | |
120 | } | |
121 | ||
122 | bool DecodeSignal::toggle_decoder_visibility(int index) | |
123 | { | |
124 | auto iter = stack_.cbegin(); | |
125 | for (int i = 0; i < index; i++, iter++) | |
126 | assert(iter != stack_.end()); | |
127 | ||
128 | shared_ptr<Decoder> dec = *iter; | |
129 | ||
130 | // Toggle decoder visibility | |
131 | bool state = false; | |
132 | if (dec) { | |
133 | state = !dec->shown(); | |
134 | dec->show(state); | |
135 | } | |
136 | ||
137 | return state; | |
138 | } | |
139 | ||
140 | void DecodeSignal::reset_decode(bool shutting_down) | |
141 | { | |
142 | if (stack_config_changed_ || shutting_down) | |
143 | stop_srd_session(); | |
144 | else | |
145 | terminate_srd_session(); | |
146 | ||
147 | if (decode_thread_.joinable()) { | |
148 | decode_interrupt_ = true; | |
149 | decode_input_cond_.notify_one(); | |
150 | decode_thread_.join(); | |
151 | } | |
152 | ||
153 | if (logic_mux_thread_.joinable()) { | |
154 | logic_mux_interrupt_ = true; | |
155 | logic_mux_cond_.notify_one(); | |
156 | logic_mux_thread_.join(); | |
157 | } | |
158 | ||
159 | resume_decode(); // Make sure the decode thread isn't blocked by pausing | |
160 | ||
161 | class_rows_.clear(); | |
162 | current_segment_id_ = 0; | |
163 | segments_.clear(); | |
164 | ||
165 | logic_mux_data_.reset(); | |
166 | logic_mux_data_invalid_ = true; | |
167 | ||
168 | if (!error_message_.isEmpty()) { | |
169 | error_message_ = QString(); | |
170 | // TODO Emulate noquote() | |
171 | qDebug().nospace() << name() << ": Error cleared"; | |
172 | } | |
173 | ||
174 | decode_reset(); | |
175 | } | |
176 | ||
177 | void DecodeSignal::begin_decode() | |
178 | { | |
179 | if (decode_thread_.joinable()) { | |
180 | decode_interrupt_ = true; | |
181 | decode_input_cond_.notify_one(); | |
182 | decode_thread_.join(); | |
183 | } | |
184 | ||
185 | if (logic_mux_thread_.joinable()) { | |
186 | logic_mux_interrupt_ = true; | |
187 | logic_mux_cond_.notify_one(); | |
188 | logic_mux_thread_.join(); | |
189 | } | |
190 | ||
191 | reset_decode(); | |
192 | ||
193 | if (stack_.size() == 0) { | |
194 | set_error_message(tr("No decoders")); | |
195 | return; | |
196 | } | |
197 | ||
198 | assert(channels_.size() > 0); | |
199 | ||
200 | if (get_assigned_signal_count() == 0) { | |
201 | set_error_message(tr("There are no channels assigned to this decoder")); | |
202 | return; | |
203 | } | |
204 | ||
205 | // Make sure that all assigned channels still provide logic data | |
206 | // (can happen when a converted signal was assigned but the | |
207 | // conversion removed in the meanwhile) | |
208 | for (data::DecodeChannel& ch : channels_) | |
209 | if (ch.assigned_signal && !(ch.assigned_signal->logic_data() != nullptr)) | |
210 | ch.assigned_signal = nullptr; | |
211 | ||
212 | // Check that all decoders have the required channels | |
213 | for (const shared_ptr<decode::Decoder>& dec : stack_) | |
214 | if (!dec->have_required_channels()) { | |
215 | set_error_message(tr("One or more required channels " | |
216 | "have not been specified")); | |
217 | return; | |
218 | } | |
219 | ||
220 | // Map out all the annotation classes | |
221 | int row_index = 0; | |
222 | for (const shared_ptr<decode::Decoder>& dec : stack_) { | |
223 | assert(dec); | |
224 | const srd_decoder *const decc = dec->decoder(); | |
225 | assert(dec->decoder()); | |
226 | ||
227 | for (const GSList *l = decc->annotation_rows; l; l = l->next) { | |
228 | const srd_decoder_annotation_row *const ann_row = | |
229 | (srd_decoder_annotation_row *)l->data; | |
230 | assert(ann_row); | |
231 | ||
232 | const Row row(row_index++, decc, ann_row); | |
233 | ||
234 | for (const GSList *ll = ann_row->ann_classes; | |
235 | ll; ll = ll->next) | |
236 | class_rows_[make_pair(decc, | |
237 | GPOINTER_TO_INT(ll->data))] = row; | |
238 | } | |
239 | } | |
240 | ||
241 | // Free the logic data and its segment(s) if it needs to be updated | |
242 | if (logic_mux_data_invalid_) | |
243 | logic_mux_data_.reset(); | |
244 | ||
245 | if (!logic_mux_data_) { | |
246 | const uint32_t ch_count = get_assigned_signal_count(); | |
247 | logic_mux_unit_size_ = (ch_count + 7) / 8; | |
248 | logic_mux_data_ = make_shared<Logic>(ch_count); | |
249 | } | |
250 | ||
251 | // Receive notifications when new sample data is available | |
252 | connect_input_notifiers(); | |
253 | ||
254 | if (get_input_segment_count() == 0) { | |
255 | set_error_message(tr("No input data")); | |
256 | return; | |
257 | } | |
258 | ||
259 | // Make sure the logic output data is complete and up-to-date | |
260 | logic_mux_interrupt_ = false; | |
261 | logic_mux_thread_ = std::thread(&DecodeSignal::logic_mux_proc, this); | |
262 | ||
263 | // Decode the muxed logic data | |
264 | decode_interrupt_ = false; | |
265 | decode_thread_ = std::thread(&DecodeSignal::decode_proc, this); | |
266 | } | |
267 | ||
268 | void DecodeSignal::pause_decode() | |
269 | { | |
270 | decode_paused_ = true; | |
271 | } | |
272 | ||
273 | void DecodeSignal::resume_decode() | |
274 | { | |
275 | // Manual unlocking is done before notifying, to avoid waking up the | |
276 | // waiting thread only to block again (see notify_one for details) | |
277 | decode_pause_mutex_.unlock(); | |
278 | decode_pause_cond_.notify_one(); | |
279 | decode_paused_ = false; | |
280 | } | |
281 | ||
282 | bool DecodeSignal::is_paused() const | |
283 | { | |
284 | return decode_paused_; | |
285 | } | |
286 | ||
287 | QString DecodeSignal::error_message() const | |
288 | { | |
289 | lock_guard<mutex> lock(output_mutex_); | |
290 | return error_message_; | |
291 | } | |
292 | ||
293 | const vector<data::DecodeChannel> DecodeSignal::get_channels() const | |
294 | { | |
295 | return channels_; | |
296 | } | |
297 | ||
298 | void DecodeSignal::auto_assign_signals(const shared_ptr<Decoder> dec) | |
299 | { | |
300 | bool new_assignment = false; | |
301 | ||
302 | // Try to auto-select channels that don't have signals assigned yet | |
303 | for (data::DecodeChannel& ch : channels_) { | |
304 | // If a decoder is given, auto-assign only its channels | |
305 | if (dec && (ch.decoder_ != dec)) | |
306 | continue; | |
307 | ||
308 | if (ch.assigned_signal) | |
309 | continue; | |
310 | ||
311 | QString ch_name = ch.name.toLower(); | |
312 | ch_name = ch_name.replace(QRegExp("[-_.]"), " "); | |
313 | ||
314 | shared_ptr<data::SignalBase> match; | |
315 | for (const shared_ptr<data::SignalBase>& s : session_.signalbases()) { | |
316 | if (!s->enabled()) | |
317 | continue; | |
318 | ||
319 | QString s_name = s->name().toLower(); | |
320 | s_name = s_name.replace(QRegExp("[-_.]"), " "); | |
321 | ||
322 | if (s->logic_data() && | |
323 | ((ch_name.contains(s_name)) || (s_name.contains(ch_name)))) { | |
324 | if (!match) | |
325 | match = s; | |
326 | else { | |
327 | // Only replace an existing match if it matches more characters | |
328 | int old_unmatched = ch_name.length() - match->name().length(); | |
329 | int new_unmatched = ch_name.length() - s->name().length(); | |
330 | if (abs(new_unmatched) < abs(old_unmatched)) | |
331 | match = s; | |
332 | } | |
333 | } | |
334 | } | |
335 | ||
336 | if (match) { | |
337 | ch.assigned_signal = match.get(); | |
338 | new_assignment = true; | |
339 | } | |
340 | } | |
341 | ||
342 | if (new_assignment) { | |
343 | logic_mux_data_invalid_ = true; | |
344 | stack_config_changed_ = true; | |
345 | commit_decoder_channels(); | |
346 | channels_updated(); | |
347 | } | |
348 | } | |
349 | ||
350 | void DecodeSignal::assign_signal(const uint16_t channel_id, const SignalBase *signal) | |
351 | { | |
352 | for (data::DecodeChannel& ch : channels_) | |
353 | if (ch.id == channel_id) { | |
354 | ch.assigned_signal = signal; | |
355 | logic_mux_data_invalid_ = true; | |
356 | } | |
357 | ||
358 | stack_config_changed_ = true; | |
359 | commit_decoder_channels(); | |
360 | channels_updated(); | |
361 | begin_decode(); | |
362 | } | |
363 | ||
364 | int DecodeSignal::get_assigned_signal_count() const | |
365 | { | |
366 | // Count all channels that have a signal assigned to them | |
367 | return count_if(channels_.begin(), channels_.end(), | |
368 | [](data::DecodeChannel ch) { return ch.assigned_signal; }); | |
369 | } | |
370 | ||
371 | void DecodeSignal::set_initial_pin_state(const uint16_t channel_id, const int init_state) | |
372 | { | |
373 | for (data::DecodeChannel& ch : channels_) | |
374 | if (ch.id == channel_id) | |
375 | ch.initial_pin_state = init_state; | |
376 | ||
377 | stack_config_changed_ = true; | |
378 | channels_updated(); | |
379 | begin_decode(); | |
380 | } | |
381 | ||
382 | double DecodeSignal::samplerate() const | |
383 | { | |
384 | double result = 0; | |
385 | ||
386 | // TODO For now, we simply return the first samplerate that we have | |
387 | if (segments_.size() > 0) | |
388 | result = segments_.front().samplerate; | |
389 | ||
390 | return result; | |
391 | } | |
392 | ||
393 | const pv::util::Timestamp DecodeSignal::start_time() const | |
394 | { | |
395 | pv::util::Timestamp result; | |
396 | ||
397 | // TODO For now, we simply return the first start time that we have | |
398 | if (segments_.size() > 0) | |
399 | result = segments_.front().start_time; | |
400 | ||
401 | return result; | |
402 | } | |
403 | ||
404 | int64_t DecodeSignal::get_working_sample_count(uint32_t segment_id) const | |
405 | { | |
406 | // The working sample count is the highest sample number for | |
407 | // which all used signals have data available, so go through all | |
408 | // channels and use the lowest overall sample count of the segment | |
409 | ||
410 | int64_t count = std::numeric_limits<int64_t>::max(); | |
411 | bool no_signals_assigned = true; | |
412 | ||
413 | for (const data::DecodeChannel& ch : channels_) | |
414 | if (ch.assigned_signal) { | |
415 | no_signals_assigned = false; | |
416 | ||
417 | const shared_ptr<Logic> logic_data = ch.assigned_signal->logic_data(); | |
418 | if (!logic_data || logic_data->logic_segments().empty()) | |
419 | return 0; | |
420 | ||
421 | try { | |
422 | const shared_ptr<LogicSegment> segment = logic_data->logic_segments().at(segment_id); | |
423 | count = min(count, (int64_t)segment->get_sample_count()); | |
424 | } catch (out_of_range&) { | |
425 | return 0; | |
426 | } | |
427 | } | |
428 | ||
429 | return (no_signals_assigned ? 0 : count); | |
430 | } | |
431 | ||
432 | int64_t DecodeSignal::get_decoded_sample_count(uint32_t segment_id, | |
433 | bool include_processing) const | |
434 | { | |
435 | lock_guard<mutex> decode_lock(output_mutex_); | |
436 | ||
437 | int64_t result = 0; | |
438 | ||
439 | try { | |
440 | const DecodeSegment *segment = &(segments_.at(segment_id)); | |
441 | if (include_processing) | |
442 | result = segment->samples_decoded_incl; | |
443 | else | |
444 | result = segment->samples_decoded_excl; | |
445 | } catch (out_of_range&) { | |
446 | // Do nothing | |
447 | } | |
448 | ||
449 | return result; | |
450 | } | |
451 | ||
452 | vector<Row> DecodeSignal::visible_rows() const | |
453 | { | |
454 | lock_guard<mutex> lock(output_mutex_); | |
455 | ||
456 | vector<Row> rows; | |
457 | ||
458 | for (const shared_ptr<decode::Decoder>& dec : stack_) { | |
459 | assert(dec); | |
460 | if (!dec->shown()) | |
461 | continue; | |
462 | ||
463 | const srd_decoder *const decc = dec->decoder(); | |
464 | assert(dec->decoder()); | |
465 | ||
466 | int row_index = 0; | |
467 | // Add a row for the decoder if it doesn't have a row list | |
468 | if (!decc->annotation_rows) | |
469 | rows.emplace_back(row_index++, decc); | |
470 | ||
471 | // Add the decoder rows | |
472 | for (const GSList *l = decc->annotation_rows; l; l = l->next) { | |
473 | const srd_decoder_annotation_row *const ann_row = | |
474 | (srd_decoder_annotation_row *)l->data; | |
475 | assert(ann_row); | |
476 | rows.emplace_back(row_index++, decc, ann_row); | |
477 | } | |
478 | } | |
479 | ||
480 | return rows; | |
481 | } | |
482 | ||
483 | void DecodeSignal::get_annotation_subset( | |
484 | vector<pv::data::decode::Annotation> &dest, | |
485 | const decode::Row &row, uint32_t segment_id, uint64_t start_sample, | |
486 | uint64_t end_sample) const | |
487 | { | |
488 | lock_guard<mutex> lock(output_mutex_); | |
489 | ||
490 | try { | |
491 | const DecodeSegment *segment = &(segments_.at(segment_id)); | |
492 | const map<const decode::Row, decode::RowData> *rows = | |
493 | &(segment->annotation_rows); | |
494 | ||
495 | const auto iter = rows->find(row); | |
496 | if (iter != rows->end()) | |
497 | (*iter).second.get_annotation_subset(dest, | |
498 | start_sample, end_sample); | |
499 | } catch (out_of_range&) { | |
500 | // Do nothing | |
501 | } | |
502 | } | |
503 | ||
504 | void DecodeSignal::get_annotation_subset( | |
505 | vector<pv::data::decode::Annotation> &dest, | |
506 | uint32_t segment_id, uint64_t start_sample, uint64_t end_sample) const | |
507 | { | |
508 | // Note: We put all vectors and lists on the heap, not the stack | |
509 | ||
510 | const vector<Row> rows = visible_rows(); | |
511 | ||
512 | // Use forward_lists for faster merging | |
513 | forward_list<Annotation> *all_ann_list = new forward_list<Annotation>(); | |
514 | ||
515 | for (const Row& row : rows) { | |
516 | vector<Annotation> *ann_vector = new vector<Annotation>(); | |
517 | get_annotation_subset(*ann_vector, row, segment_id, start_sample, end_sample); | |
518 | ||
519 | forward_list<Annotation> *ann_list = | |
520 | new forward_list<Annotation>(ann_vector->begin(), ann_vector->end()); | |
521 | delete ann_vector; | |
522 | ||
523 | all_ann_list->merge(*ann_list); | |
524 | delete ann_list; | |
525 | } | |
526 | ||
527 | move(all_ann_list->begin(), all_ann_list->end(), back_inserter(dest)); | |
528 | delete all_ann_list; | |
529 | } | |
530 | ||
531 | void DecodeSignal::save_settings(QSettings &settings) const | |
532 | { | |
533 | SignalBase::save_settings(settings); | |
534 | ||
535 | settings.setValue("decoders", (int)(stack_.size())); | |
536 | ||
537 | // Save decoder stack | |
538 | int decoder_idx = 0; | |
539 | for (const shared_ptr<decode::Decoder>& decoder : stack_) { | |
540 | settings.beginGroup("decoder" + QString::number(decoder_idx++)); | |
541 | ||
542 | settings.setValue("id", decoder->decoder()->id); | |
543 | ||
544 | // Save decoder options | |
545 | const map<string, GVariant*>& options = decoder->options(); | |
546 | ||
547 | settings.setValue("options", (int)options.size()); | |
548 | ||
549 | // Note: decode::Decoder::options() returns only the options | |
550 | // that differ from the default. See binding::Decoder::getter() | |
551 | int i = 0; | |
552 | for (auto& option : options) { | |
553 | settings.beginGroup("option" + QString::number(i)); | |
554 | settings.setValue("name", QString::fromStdString(option.first)); | |
555 | GlobalSettings::store_gvariant(settings, option.second); | |
556 | settings.endGroup(); | |
557 | i++; | |
558 | } | |
559 | ||
560 | settings.endGroup(); | |
561 | } | |
562 | ||
563 | // Save channel mapping | |
564 | settings.setValue("channels", (int)channels_.size()); | |
565 | ||
566 | for (unsigned int channel_id = 0; channel_id < channels_.size(); channel_id++) { | |
567 | auto channel = find_if(channels_.begin(), channels_.end(), | |
568 | [&](data::DecodeChannel ch) { return ch.id == channel_id; }); | |
569 | ||
570 | if (channel == channels_.end()) { | |
571 | qDebug() << "ERROR: Gap in channel index:" << channel_id; | |
572 | continue; | |
573 | } | |
574 | ||
575 | settings.beginGroup("channel" + QString::number(channel_id)); | |
576 | ||
577 | settings.setValue("name", channel->name); // Useful for debugging | |
578 | settings.setValue("initial_pin_state", channel->initial_pin_state); | |
579 | ||
580 | if (channel->assigned_signal) | |
581 | settings.setValue("assigned_signal_name", channel->assigned_signal->name()); | |
582 | ||
583 | settings.endGroup(); | |
584 | } | |
585 | } | |
586 | ||
587 | void DecodeSignal::restore_settings(QSettings &settings) | |
588 | { | |
589 | SignalBase::restore_settings(settings); | |
590 | ||
591 | // Restore decoder stack | |
592 | GSList *dec_list = g_slist_copy((GSList*)srd_decoder_list()); | |
593 | ||
594 | int decoders = settings.value("decoders").toInt(); | |
595 | ||
596 | for (int decoder_idx = 0; decoder_idx < decoders; decoder_idx++) { | |
597 | settings.beginGroup("decoder" + QString::number(decoder_idx)); | |
598 | ||
599 | QString id = settings.value("id").toString(); | |
600 | ||
601 | for (GSList *entry = dec_list; entry; entry = entry->next) { | |
602 | const srd_decoder *dec = (srd_decoder*)entry->data; | |
603 | if (!dec) | |
604 | continue; | |
605 | ||
606 | if (QString::fromUtf8(dec->id) == id) { | |
607 | shared_ptr<decode::Decoder> decoder = | |
608 | make_shared<decode::Decoder>(dec); | |
609 | ||
610 | stack_.push_back(decoder); | |
611 | ||
612 | // Restore decoder options that differ from their default | |
613 | int options = settings.value("options").toInt(); | |
614 | ||
615 | for (int i = 0; i < options; i++) { | |
616 | settings.beginGroup("option" + QString::number(i)); | |
617 | QString name = settings.value("name").toString(); | |
618 | GVariant *value = GlobalSettings::restore_gvariant(settings); | |
619 | decoder->set_option(name.toUtf8(), value); | |
620 | settings.endGroup(); | |
621 | } | |
622 | ||
623 | // Include the newly created decode channels in the channel lists | |
624 | update_channel_list(); | |
625 | break; | |
626 | } | |
627 | } | |
628 | ||
629 | settings.endGroup(); | |
630 | channels_updated(); | |
631 | } | |
632 | ||
633 | // Restore channel mapping | |
634 | unsigned int channels = settings.value("channels").toInt(); | |
635 | ||
636 | const unordered_set< shared_ptr<data::SignalBase> > signalbases = | |
637 | session_.signalbases(); | |
638 | ||
639 | for (unsigned int channel_id = 0; channel_id < channels; channel_id++) { | |
640 | auto channel = find_if(channels_.begin(), channels_.end(), | |
641 | [&](data::DecodeChannel ch) { return ch.id == channel_id; }); | |
642 | ||
643 | if (channel == channels_.end()) { | |
644 | qDebug() << "ERROR: Non-existant channel index:" << channel_id; | |
645 | continue; | |
646 | } | |
647 | ||
648 | settings.beginGroup("channel" + QString::number(channel_id)); | |
649 | ||
650 | QString assigned_signal_name = settings.value("assigned_signal_name").toString(); | |
651 | ||
652 | for (const shared_ptr<data::SignalBase>& signal : signalbases) | |
653 | if (signal->name() == assigned_signal_name) | |
654 | channel->assigned_signal = signal.get(); | |
655 | ||
656 | channel->initial_pin_state = settings.value("initial_pin_state").toInt(); | |
657 | ||
658 | settings.endGroup(); | |
659 | } | |
660 | ||
661 | // Update the internal structures | |
662 | stack_config_changed_ = true; | |
663 | update_channel_list(); | |
664 | commit_decoder_channels(); | |
665 | ||
666 | begin_decode(); | |
667 | } | |
668 | ||
669 | void DecodeSignal::set_error_message(QString msg) | |
670 | { | |
671 | error_message_ = msg; | |
672 | // TODO Emulate noquote() | |
673 | qDebug().nospace() << name() << ": " << msg; | |
674 | } | |
675 | ||
676 | uint32_t DecodeSignal::get_input_segment_count() const | |
677 | { | |
678 | uint64_t count = std::numeric_limits<uint64_t>::max(); | |
679 | bool no_signals_assigned = true; | |
680 | ||
681 | for (const data::DecodeChannel& ch : channels_) | |
682 | if (ch.assigned_signal) { | |
683 | no_signals_assigned = false; | |
684 | ||
685 | const shared_ptr<Logic> logic_data = ch.assigned_signal->logic_data(); | |
686 | if (!logic_data || logic_data->logic_segments().empty()) | |
687 | return 0; | |
688 | ||
689 | // Find the min value of all segment counts | |
690 | if ((uint64_t)(logic_data->logic_segments().size()) < count) | |
691 | count = logic_data->logic_segments().size(); | |
692 | } | |
693 | ||
694 | return (no_signals_assigned ? 0 : count); | |
695 | } | |
696 | ||
697 | uint32_t DecodeSignal::get_input_samplerate(uint32_t segment_id) const | |
698 | { | |
699 | double samplerate = 0; | |
700 | ||
701 | for (const data::DecodeChannel& ch : channels_) | |
702 | if (ch.assigned_signal) { | |
703 | const shared_ptr<Logic> logic_data = ch.assigned_signal->logic_data(); | |
704 | if (!logic_data || logic_data->logic_segments().empty()) | |
705 | continue; | |
706 | ||
707 | try { | |
708 | const shared_ptr<LogicSegment> segment = logic_data->logic_segments().at(segment_id); | |
709 | samplerate = segment->samplerate(); | |
710 | } catch (out_of_range&) { | |
711 | // Do nothing | |
712 | } | |
713 | break; | |
714 | } | |
715 | ||
716 | return samplerate; | |
717 | } | |
718 | ||
719 | void DecodeSignal::update_channel_list() | |
720 | { | |
721 | vector<data::DecodeChannel> prev_channels = channels_; | |
722 | channels_.clear(); | |
723 | ||
724 | uint16_t id = 0; | |
725 | ||
726 | // Copy existing entries, create new as needed | |
727 | for (shared_ptr<Decoder>& decoder : stack_) { | |
728 | const srd_decoder* srd_d = decoder->decoder(); | |
729 | const GSList *l; | |
730 | ||
731 | // Mandatory channels | |
732 | for (l = srd_d->channels; l; l = l->next) { | |
733 | const struct srd_channel *const pdch = (struct srd_channel *)l->data; | |
734 | bool ch_added = false; | |
735 | ||
736 | // Copy but update ID if this channel was in the list before | |
737 | for (data::DecodeChannel& ch : prev_channels) | |
738 | if (ch.pdch_ == pdch) { | |
739 | ch.id = id++; | |
740 | channels_.push_back(ch); | |
741 | ch_added = true; | |
742 | break; | |
743 | } | |
744 | ||
745 | if (!ch_added) { | |
746 | // Create new entry without a mapped signal | |
747 | data::DecodeChannel ch = {id++, 0, false, nullptr, | |
748 | QString::fromUtf8(pdch->name), QString::fromUtf8(pdch->desc), | |
749 | SRD_INITIAL_PIN_SAME_AS_SAMPLE0, decoder, pdch}; | |
750 | channels_.push_back(ch); | |
751 | } | |
752 | } | |
753 | ||
754 | // Optional channels | |
755 | for (l = srd_d->opt_channels; l; l = l->next) { | |
756 | const struct srd_channel *const pdch = (struct srd_channel *)l->data; | |
757 | bool ch_added = false; | |
758 | ||
759 | // Copy but update ID if this channel was in the list before | |
760 | for (data::DecodeChannel& ch : prev_channels) | |
761 | if (ch.pdch_ == pdch) { | |
762 | ch.id = id++; | |
763 | channels_.push_back(ch); | |
764 | ch_added = true; | |
765 | break; | |
766 | } | |
767 | ||
768 | if (!ch_added) { | |
769 | // Create new entry without a mapped signal | |
770 | data::DecodeChannel ch = {id++, 0, true, nullptr, | |
771 | QString::fromUtf8(pdch->name), QString::fromUtf8(pdch->desc), | |
772 | SRD_INITIAL_PIN_SAME_AS_SAMPLE0, decoder, pdch}; | |
773 | channels_.push_back(ch); | |
774 | } | |
775 | } | |
776 | } | |
777 | ||
778 | // Invalidate the logic output data if the channel assignment changed | |
779 | if (prev_channels.size() != channels_.size()) { | |
780 | // The number of channels changed, there's definitely a difference | |
781 | logic_mux_data_invalid_ = true; | |
782 | } else { | |
783 | // Same number but assignment may still differ, so compare all channels | |
784 | for (size_t i = 0; i < channels_.size(); i++) { | |
785 | const data::DecodeChannel& p_ch = prev_channels[i]; | |
786 | const data::DecodeChannel& ch = channels_[i]; | |
787 | ||
788 | if ((p_ch.pdch_ != ch.pdch_) || | |
789 | (p_ch.assigned_signal != ch.assigned_signal)) { | |
790 | logic_mux_data_invalid_ = true; | |
791 | break; | |
792 | } | |
793 | } | |
794 | ||
795 | } | |
796 | ||
797 | channels_updated(); | |
798 | } | |
799 | ||
800 | void DecodeSignal::commit_decoder_channels() | |
801 | { | |
802 | // Submit channel list to every decoder, containing only the relevant channels | |
803 | for (shared_ptr<decode::Decoder> dec : stack_) { | |
804 | vector<data::DecodeChannel*> channel_list; | |
805 | ||
806 | for (data::DecodeChannel& ch : channels_) | |
807 | if (ch.decoder_ == dec) | |
808 | channel_list.push_back(&ch); | |
809 | ||
810 | dec->set_channels(channel_list); | |
811 | } | |
812 | ||
813 | // Channel bit IDs must be in sync with the channel's apperance in channels_ | |
814 | int id = 0; | |
815 | for (data::DecodeChannel& ch : channels_) | |
816 | if (ch.assigned_signal) | |
817 | ch.bit_id = id++; | |
818 | } | |
819 | ||
820 | void DecodeSignal::mux_logic_samples(uint32_t segment_id, const int64_t start, const int64_t end) | |
821 | { | |
822 | // Enforce end to be greater than start | |
823 | if (end <= start) | |
824 | return; | |
825 | ||
826 | // Fetch the channel segments and their data | |
827 | vector<shared_ptr<LogicSegment> > segments; | |
828 | vector<const uint8_t*> signal_data; | |
829 | vector<uint8_t> signal_in_bytepos; | |
830 | vector<uint8_t> signal_in_bitpos; | |
831 | ||
832 | for (data::DecodeChannel& ch : channels_) | |
833 | if (ch.assigned_signal) { | |
834 | const shared_ptr<Logic> logic_data = ch.assigned_signal->logic_data(); | |
835 | ||
836 | shared_ptr<LogicSegment> segment; | |
837 | try { | |
838 | segment = logic_data->logic_segments().at(segment_id); | |
839 | } catch (out_of_range&) { | |
840 | qDebug() << "Muxer error for" << name() << ":" << ch.assigned_signal->name() \ | |
841 | << "has no logic segment" << segment_id; | |
842 | return; | |
843 | } | |
844 | segments.push_back(segment); | |
845 | ||
846 | uint8_t* data = new uint8_t[(end - start) * segment->unit_size()]; | |
847 | segment->get_samples(start, end, data); | |
848 | signal_data.push_back(data); | |
849 | ||
850 | const int bitpos = ch.assigned_signal->logic_bit_index(); | |
851 | signal_in_bytepos.push_back(bitpos / 8); | |
852 | signal_in_bitpos.push_back(bitpos % 8); | |
853 | } | |
854 | ||
855 | ||
856 | shared_ptr<LogicSegment> output_segment; | |
857 | try { | |
858 | output_segment = logic_mux_data_->logic_segments().at(segment_id); | |
859 | } catch (out_of_range&) { | |
860 | qDebug() << "Muxer error for" << name() << ": no logic mux segment" \ | |
861 | << segment_id << "in mux_logic_samples(), mux segments size is" \ | |
862 | << logic_mux_data_->logic_segments().size(); | |
863 | return; | |
864 | } | |
865 | ||
866 | // Perform the muxing of signal data into the output data | |
867 | uint8_t* output = new uint8_t[(end - start) * output_segment->unit_size()]; | |
868 | unsigned int signal_count = signal_data.size(); | |
869 | ||
870 | for (int64_t sample_cnt = 0; !logic_mux_interrupt_ && (sample_cnt < (end - start)); | |
871 | sample_cnt++) { | |
872 | ||
873 | int bitpos = 0; | |
874 | uint8_t bytepos = 0; | |
875 | ||
876 | const int out_sample_pos = sample_cnt * output_segment->unit_size(); | |
877 | for (unsigned int i = 0; i < output_segment->unit_size(); i++) | |
878 | output[out_sample_pos + i] = 0; | |
879 | ||
880 | for (unsigned int i = 0; i < signal_count; i++) { | |
881 | const int in_sample_pos = sample_cnt * segments[i]->unit_size(); | |
882 | const uint8_t in_sample = 1 & | |
883 | ((signal_data[i][in_sample_pos + signal_in_bytepos[i]]) >> (signal_in_bitpos[i])); | |
884 | ||
885 | const uint8_t out_sample = output[out_sample_pos + bytepos]; | |
886 | ||
887 | output[out_sample_pos + bytepos] = out_sample | (in_sample << bitpos); | |
888 | ||
889 | bitpos++; | |
890 | if (bitpos > 7) { | |
891 | bitpos = 0; | |
892 | bytepos++; | |
893 | } | |
894 | } | |
895 | } | |
896 | ||
897 | output_segment->append_payload(output, (end - start) * output_segment->unit_size()); | |
898 | delete[] output; | |
899 | ||
900 | for (const uint8_t* data : signal_data) | |
901 | delete[] data; | |
902 | } | |
903 | ||
904 | void DecodeSignal::logic_mux_proc() | |
905 | { | |
906 | uint32_t segment_id = 0; | |
907 | ||
908 | assert(logic_mux_data_); | |
909 | ||
910 | // Create initial logic mux segment | |
911 | shared_ptr<LogicSegment> output_segment = | |
912 | make_shared<LogicSegment>(*logic_mux_data_, segment_id, | |
913 | logic_mux_unit_size_, 0); | |
914 | logic_mux_data_->push_segment(output_segment); | |
915 | ||
916 | output_segment->set_samplerate(get_input_samplerate(0)); | |
917 | ||
918 | do { | |
919 | const uint64_t input_sample_count = get_working_sample_count(segment_id); | |
920 | const uint64_t output_sample_count = output_segment->get_sample_count(); | |
921 | ||
922 | const uint64_t samples_to_process = | |
923 | (input_sample_count > output_sample_count) ? | |
924 | (input_sample_count - output_sample_count) : 0; | |
925 | ||
926 | // Process the samples if necessary... | |
927 | if (samples_to_process > 0) { | |
928 | const uint64_t unit_size = output_segment->unit_size(); | |
929 | const uint64_t chunk_sample_count = DecodeChunkLength / unit_size; | |
930 | ||
931 | uint64_t processed_samples = 0; | |
932 | do { | |
933 | const uint64_t start_sample = output_sample_count + processed_samples; | |
934 | const uint64_t sample_count = | |
935 | min(samples_to_process - processed_samples, chunk_sample_count); | |
936 | ||
937 | mux_logic_samples(segment_id, start_sample, start_sample + sample_count); | |
938 | processed_samples += sample_count; | |
939 | ||
940 | // ...and process the newly muxed logic data | |
941 | decode_input_cond_.notify_one(); | |
942 | } while (!logic_mux_interrupt_ && (processed_samples < samples_to_process)); | |
943 | } | |
944 | ||
945 | if (samples_to_process == 0) { | |
946 | // TODO Optimize this by caching the input segment count and only | |
947 | // querying it when the cached value was reached | |
948 | if (segment_id < get_input_segment_count() - 1) { | |
949 | // Process next segment | |
950 | segment_id++; | |
951 | ||
952 | output_segment = | |
953 | make_shared<LogicSegment>(*logic_mux_data_, segment_id, | |
954 | logic_mux_unit_size_, 0); | |
955 | logic_mux_data_->push_segment(output_segment); | |
956 | ||
957 | output_segment->set_samplerate(get_input_samplerate(segment_id)); | |
958 | ||
959 | } else { | |
960 | // All segments have been processed | |
961 | logic_mux_data_invalid_ = false; | |
962 | ||
963 | // Wait for more input | |
964 | unique_lock<mutex> logic_mux_lock(logic_mux_mutex_); | |
965 | logic_mux_cond_.wait(logic_mux_lock); | |
966 | } | |
967 | } | |
968 | ||
969 | } while (!logic_mux_interrupt_); | |
970 | } | |
971 | ||
972 | void DecodeSignal::decode_data( | |
973 | const int64_t abs_start_samplenum, const int64_t sample_count, | |
974 | const shared_ptr<LogicSegment> input_segment) | |
975 | { | |
976 | const int64_t unit_size = input_segment->unit_size(); | |
977 | const int64_t chunk_sample_count = DecodeChunkLength / unit_size; | |
978 | ||
979 | for (int64_t i = abs_start_samplenum; | |
980 | error_message_.isEmpty() && !decode_interrupt_ && | |
981 | (i < (abs_start_samplenum + sample_count)); | |
982 | i += chunk_sample_count) { | |
983 | ||
984 | const int64_t chunk_end = min(i + chunk_sample_count, | |
985 | abs_start_samplenum + sample_count); | |
986 | ||
987 | { | |
988 | lock_guard<mutex> lock(output_mutex_); | |
989 | // Update the sample count showing the samples including currently processed ones | |
990 | segments_.at(current_segment_id_).samples_decoded_incl = chunk_end; | |
991 | } | |
992 | ||
993 | int64_t data_size = (chunk_end - i) * unit_size; | |
994 | uint8_t* chunk = new uint8_t[data_size]; | |
995 | input_segment->get_samples(i, chunk_end, chunk); | |
996 | ||
997 | if (srd_session_send(srd_session_, i, chunk_end, chunk, | |
998 | data_size, unit_size) != SRD_OK) | |
999 | set_error_message(tr("Decoder reported an error")); | |
1000 | ||
1001 | delete[] chunk; | |
1002 | ||
1003 | { | |
1004 | lock_guard<mutex> lock(output_mutex_); | |
1005 | // Now that all samples are processed, the exclusive sample count catches up | |
1006 | segments_.at(current_segment_id_).samples_decoded_excl = chunk_end; | |
1007 | } | |
1008 | ||
1009 | // Notify the frontend that we processed some data and | |
1010 | // possibly have new annotations as well | |
1011 | new_annotations(); | |
1012 | ||
1013 | if (decode_paused_) { | |
1014 | unique_lock<mutex> pause_wait_lock(decode_pause_mutex_); | |
1015 | decode_pause_cond_.wait(pause_wait_lock); | |
1016 | } | |
1017 | } | |
1018 | } | |
1019 | ||
1020 | void DecodeSignal::decode_proc() | |
1021 | { | |
1022 | current_segment_id_ = 0; | |
1023 | ||
1024 | // If there is no input data available yet, wait until it is or we're interrupted | |
1025 | if (logic_mux_data_->logic_segments().size() == 0) { | |
1026 | unique_lock<mutex> input_wait_lock(input_mutex_); | |
1027 | decode_input_cond_.wait(input_wait_lock); | |
1028 | } | |
1029 | ||
1030 | if (decode_interrupt_) | |
1031 | return; | |
1032 | ||
1033 | shared_ptr<LogicSegment> input_segment = logic_mux_data_->logic_segments().front(); | |
1034 | assert(input_segment); | |
1035 | ||
1036 | // Create the initial segment and set its sample rate so that we can pass it to SRD | |
1037 | create_decode_segment(); | |
1038 | segments_.at(current_segment_id_).samplerate = input_segment->samplerate(); | |
1039 | segments_.at(current_segment_id_).start_time = input_segment->start_time(); | |
1040 | ||
1041 | start_srd_session(); | |
1042 | ||
1043 | uint64_t sample_count = 0; | |
1044 | uint64_t abs_start_samplenum = 0; | |
1045 | do { | |
1046 | // Keep processing new samples until we exhaust the input data | |
1047 | do { | |
1048 | lock_guard<mutex> input_lock(input_mutex_); | |
1049 | sample_count = input_segment->get_sample_count() - abs_start_samplenum; | |
1050 | ||
1051 | if (sample_count > 0) { | |
1052 | decode_data(abs_start_samplenum, sample_count, input_segment); | |
1053 | abs_start_samplenum += sample_count; | |
1054 | } | |
1055 | } while (error_message_.isEmpty() && (sample_count > 0) && !decode_interrupt_); | |
1056 | ||
1057 | if (error_message_.isEmpty() && !decode_interrupt_ && sample_count == 0) { | |
1058 | if (current_segment_id_ < logic_mux_data_->logic_segments().size() - 1) { | |
1059 | // Process next segment | |
1060 | current_segment_id_++; | |
1061 | ||
1062 | try { | |
1063 | input_segment = logic_mux_data_->logic_segments().at(current_segment_id_); | |
1064 | } catch (out_of_range&) { | |
1065 | qDebug() << "Decode error for" << name() << ": no logic mux segment" \ | |
1066 | << current_segment_id_ << "in decode_proc(), mux segments size is" \ | |
1067 | << logic_mux_data_->logic_segments().size(); | |
1068 | return; | |
1069 | } | |
1070 | abs_start_samplenum = 0; | |
1071 | ||
1072 | // Create the next segment and set its metadata | |
1073 | create_decode_segment(); | |
1074 | segments_.at(current_segment_id_).samplerate = input_segment->samplerate(); | |
1075 | segments_.at(current_segment_id_).start_time = input_segment->start_time(); | |
1076 | ||
1077 | // Reset decoder state but keep the decoder stack intact | |
1078 | terminate_srd_session(); | |
1079 | } else { | |
1080 | // All segments have been processed | |
1081 | decode_finished(); | |
1082 | ||
1083 | // Wait for new input data or an interrupt was requested | |
1084 | unique_lock<mutex> input_wait_lock(input_mutex_); | |
1085 | decode_input_cond_.wait(input_wait_lock); | |
1086 | } | |
1087 | } | |
1088 | } while (error_message_.isEmpty() && !decode_interrupt_); | |
1089 | ||
1090 | // Potentially reap decoders when the application no longer is | |
1091 | // interested in their (pending) results. | |
1092 | if (decode_interrupt_) | |
1093 | terminate_srd_session(); | |
1094 | } | |
1095 | ||
1096 | void DecodeSignal::start_srd_session() | |
1097 | { | |
1098 | // If there were stack changes, the session has been destroyed by now, so if | |
1099 | // it hasn't been destroyed, we can just reset and re-use it | |
1100 | if (srd_session_) { | |
1101 | // When a decoder stack was created before, re-use it | |
1102 | // for the next stream of input data, after terminating | |
1103 | // potentially still executing operations, and resetting | |
1104 | // internal state. Skip the rather expensive (teardown | |
1105 | // and) construction of another decoder stack. | |
1106 | ||
1107 | // TODO Reduce redundancy, use a common code path for | |
1108 | // the meta/start sequence? | |
1109 | terminate_srd_session(); | |
1110 | ||
1111 | // Metadata is cleared also, so re-set it | |
1112 | uint64_t samplerate = 0; | |
1113 | if (segments_.size() > 0) | |
1114 | samplerate = segments_.at(current_segment_id_).samplerate; | |
1115 | if (samplerate) | |
1116 | srd_session_metadata_set(srd_session_, SRD_CONF_SAMPLERATE, | |
1117 | g_variant_new_uint64(samplerate)); | |
1118 | for (const shared_ptr<decode::Decoder>& dec : stack_) | |
1119 | dec->apply_all_options(); | |
1120 | srd_session_start(srd_session_); | |
1121 | ||
1122 | return; | |
1123 | } | |
1124 | ||
1125 | // Create the session | |
1126 | srd_session_new(&srd_session_); | |
1127 | assert(srd_session_); | |
1128 | ||
1129 | // Create the decoders | |
1130 | srd_decoder_inst *prev_di = nullptr; | |
1131 | for (const shared_ptr<decode::Decoder>& dec : stack_) { | |
1132 | srd_decoder_inst *const di = dec->create_decoder_inst(srd_session_); | |
1133 | ||
1134 | if (!di) { | |
1135 | set_error_message(tr("Failed to create decoder instance")); | |
1136 | srd_session_destroy(srd_session_); | |
1137 | srd_session_ = nullptr; | |
1138 | return; | |
1139 | } | |
1140 | ||
1141 | if (prev_di) | |
1142 | srd_inst_stack(srd_session_, prev_di, di); | |
1143 | ||
1144 | prev_di = di; | |
1145 | } | |
1146 | ||
1147 | // Start the session | |
1148 | if (segments_.size() > 0) | |
1149 | srd_session_metadata_set(srd_session_, SRD_CONF_SAMPLERATE, | |
1150 | g_variant_new_uint64(segments_.at(current_segment_id_).samplerate)); | |
1151 | ||
1152 | srd_pd_output_callback_add(srd_session_, SRD_OUTPUT_ANN, | |
1153 | DecodeSignal::annotation_callback, this); | |
1154 | ||
1155 | srd_session_start(srd_session_); | |
1156 | ||
1157 | // We just recreated the srd session, so all stack changes are applied now | |
1158 | stack_config_changed_ = false; | |
1159 | } | |
1160 | ||
1161 | void DecodeSignal::terminate_srd_session() | |
1162 | { | |
1163 | // Call the "terminate and reset" routine for the decoder stack | |
1164 | // (if available). This does not harm those stacks which already | |
1165 | // have completed their operation, and reduces response time for | |
1166 | // those stacks which still are processing data while the | |
1167 | // application no longer wants them to. | |
1168 | if (srd_session_) { | |
1169 | srd_session_terminate_reset(srd_session_); | |
1170 | ||
1171 | // Metadata is cleared also, so re-set it | |
1172 | uint64_t samplerate = 0; | |
1173 | if (segments_.size() > 0) | |
1174 | samplerate = segments_.at(current_segment_id_).samplerate; | |
1175 | if (samplerate) | |
1176 | srd_session_metadata_set(srd_session_, SRD_CONF_SAMPLERATE, | |
1177 | g_variant_new_uint64(samplerate)); | |
1178 | for (const shared_ptr<decode::Decoder>& dec : stack_) | |
1179 | dec->apply_all_options(); | |
1180 | } | |
1181 | } | |
1182 | ||
1183 | void DecodeSignal::stop_srd_session() | |
1184 | { | |
1185 | if (srd_session_) { | |
1186 | // Destroy the session | |
1187 | srd_session_destroy(srd_session_); | |
1188 | srd_session_ = nullptr; | |
1189 | ||
1190 | // Mark the decoder instances as non-existant since they were deleted | |
1191 | for (const shared_ptr<decode::Decoder>& dec : stack_) | |
1192 | dec->invalidate_decoder_inst(); | |
1193 | } | |
1194 | } | |
1195 | ||
1196 | void DecodeSignal::connect_input_notifiers() | |
1197 | { | |
1198 | // Disconnect the notification slot from the previous set of signals | |
1199 | disconnect(this, SLOT(on_data_cleared())); | |
1200 | disconnect(this, SLOT(on_data_received())); | |
1201 | ||
1202 | // Connect the currently used signals to our slot | |
1203 | for (data::DecodeChannel& ch : channels_) { | |
1204 | if (!ch.assigned_signal) | |
1205 | continue; | |
1206 | ||
1207 | const data::SignalBase *signal = ch.assigned_signal; | |
1208 | connect(signal, SIGNAL(samples_cleared()), | |
1209 | this, SLOT(on_data_cleared())); | |
1210 | connect(signal, SIGNAL(samples_added(uint64_t, uint64_t, uint64_t)), | |
1211 | this, SLOT(on_data_received())); | |
1212 | } | |
1213 | } | |
1214 | ||
1215 | void DecodeSignal::create_decode_segment() | |
1216 | { | |
1217 | // Create annotation segment | |
1218 | segments_.emplace_back(DecodeSegment()); | |
1219 | ||
1220 | // Add annotation classes | |
1221 | for (const shared_ptr<decode::Decoder>& dec : stack_) { | |
1222 | assert(dec); | |
1223 | const srd_decoder *const decc = dec->decoder(); | |
1224 | assert(dec->decoder()); | |
1225 | ||
1226 | int row_index = 0; | |
1227 | // Add a row for the decoder if it doesn't have a row list | |
1228 | if (!decc->annotation_rows) | |
1229 | (segments_.back().annotation_rows)[Row(row_index++, decc)] = | |
1230 | decode::RowData(); | |
1231 | ||
1232 | // Add the decoder rows | |
1233 | for (const GSList *l = decc->annotation_rows; l; l = l->next) { | |
1234 | const srd_decoder_annotation_row *const ann_row = | |
1235 | (srd_decoder_annotation_row *)l->data; | |
1236 | assert(ann_row); | |
1237 | ||
1238 | const Row row(row_index++, decc, ann_row); | |
1239 | ||
1240 | // Add a new empty row data object | |
1241 | (segments_.back().annotation_rows)[row] = | |
1242 | decode::RowData(); | |
1243 | } | |
1244 | } | |
1245 | } | |
1246 | ||
1247 | void DecodeSignal::annotation_callback(srd_proto_data *pdata, void *decode_signal) | |
1248 | { | |
1249 | assert(pdata); | |
1250 | assert(decode_signal); | |
1251 | ||
1252 | DecodeSignal *const ds = (DecodeSignal*)decode_signal; | |
1253 | assert(ds); | |
1254 | ||
1255 | if (ds->decode_interrupt_) | |
1256 | return; | |
1257 | ||
1258 | lock_guard<mutex> lock(ds->output_mutex_); | |
1259 | ||
1260 | // Find the row | |
1261 | assert(pdata->pdo); | |
1262 | assert(pdata->pdo->di); | |
1263 | const srd_decoder *const decc = pdata->pdo->di->decoder; | |
1264 | assert(decc); | |
1265 | ||
1266 | const srd_proto_data_annotation *const pda = | |
1267 | (const srd_proto_data_annotation*)pdata->data; | |
1268 | assert(pda); | |
1269 | ||
1270 | auto row_iter = ds->segments_.at(ds->current_segment_id_).annotation_rows.end(); | |
1271 | ||
1272 | // Try looking up the sub-row of this class | |
1273 | const auto format = pda->ann_class; | |
1274 | const auto r = ds->class_rows_.find(make_pair(decc, format)); | |
1275 | if (r != ds->class_rows_.end()) | |
1276 | row_iter = ds->segments_.at(ds->current_segment_id_).annotation_rows.find((*r).second); | |
1277 | else { | |
1278 | // Failing that, use the decoder as a key | |
1279 | row_iter = ds->segments_.at(ds->current_segment_id_).annotation_rows.find(Row(0, decc)); | |
1280 | } | |
1281 | ||
1282 | if (row_iter == ds->segments_.at(ds->current_segment_id_).annotation_rows.end()) { | |
1283 | qDebug() << "Unexpected annotation: decoder = " << decc << | |
1284 | ", format = " << format; | |
1285 | assert(false); | |
1286 | return; | |
1287 | } | |
1288 | ||
1289 | // Add the annotation | |
1290 | (*row_iter).second.emplace_annotation(pdata, &((*row_iter).first)); | |
1291 | } | |
1292 | ||
1293 | void DecodeSignal::on_capture_state_changed(int state) | |
1294 | { | |
1295 | // If a new acquisition was started, we need to start decoding from scratch | |
1296 | if (state == Session::Running) { | |
1297 | logic_mux_data_invalid_ = true; | |
1298 | begin_decode(); | |
1299 | } | |
1300 | } | |
1301 | ||
1302 | void DecodeSignal::on_data_cleared() | |
1303 | { | |
1304 | reset_decode(); | |
1305 | } | |
1306 | ||
1307 | void DecodeSignal::on_data_received() | |
1308 | { | |
1309 | // If we detected a lack of input data when trying to start decoding, | |
1310 | // we have set an error message. Only try again if we now have data | |
1311 | // to work with | |
1312 | if ((!error_message_.isEmpty()) && (get_input_segment_count() == 0)) | |
1313 | return; | |
1314 | ||
1315 | if (!logic_mux_thread_.joinable()) | |
1316 | begin_decode(); | |
1317 | else | |
1318 | logic_mux_cond_.notify_one(); | |
1319 | } | |
1320 | ||
1321 | } // namespace data | |
1322 | } // namespace pv |