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