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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 <cstring> | |
21 | #include <forward_list> | |
22 | #include <limits> | |
23 | ||
24 | #include <QDebug> | |
25 | ||
26 | #include "logic.hpp" | |
27 | #include "logicsegment.hpp" | |
28 | #include "decodesignal.hpp" | |
29 | #include "signaldata.hpp" | |
30 | ||
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::DecodeChannel; | |
46 | using pv::data::decode::Decoder; | |
47 | using pv::data::decode::Row; | |
48 | ||
49 | namespace pv { | |
50 | namespace data { | |
51 | ||
52 | const double DecodeSignal::DecodeMargin = 1.0; | |
53 | const double DecodeSignal::DecodeThreshold = 0.2; | |
54 | const int64_t DecodeSignal::DecodeChunkLength = 256 * 1024; | |
55 | ||
56 | ||
57 | DecodeSignal::DecodeSignal(pv::Session &session) : | |
58 | SignalBase(nullptr, SignalBase::DecodeChannel), | |
59 | session_(session), | |
60 | srd_session_(nullptr), | |
61 | logic_mux_data_invalid_(false), | |
62 | stack_config_changed_(true), | |
63 | current_segment_id_(0) | |
64 | { | |
65 | connect(&session_, SIGNAL(capture_state_changed(int)), | |
66 | this, SLOT(on_capture_state_changed(int))); | |
67 | } | |
68 | ||
69 | DecodeSignal::~DecodeSignal() | |
70 | { | |
71 | reset_decode(true); | |
72 | } | |
73 | ||
74 | const vector< shared_ptr<Decoder> >& DecodeSignal::decoder_stack() const | |
75 | { | |
76 | return stack_; | |
77 | } | |
78 | ||
79 | void DecodeSignal::stack_decoder(const srd_decoder *decoder) | |
80 | { | |
81 | assert(decoder); | |
82 | ||
83 | // Set name if this decoder is the first in the list or the name is unchanged | |
84 | const srd_decoder* prev_dec = | |
85 | stack_.empty() ? nullptr : stack_.back()->decoder(); | |
86 | const QString prev_dec_name = | |
87 | prev_dec ? QString::fromUtf8(prev_dec->name) : QString(); | |
88 | ||
89 | if ((stack_.empty()) || ((stack_.size() > 0) && (name() == prev_dec_name))) | |
90 | set_name(QString::fromUtf8(decoder->name)); | |
91 | ||
92 | const shared_ptr<Decoder> dec = make_shared<decode::Decoder>(decoder); | |
93 | stack_.push_back(dec); | |
94 | ||
95 | // Include the newly created decode channels in the channel lists | |
96 | update_channel_list(); | |
97 | ||
98 | stack_config_changed_ = true; | |
99 | auto_assign_signals(dec); | |
100 | commit_decoder_channels(); | |
101 | begin_decode(); | |
102 | } | |
103 | ||
104 | void DecodeSignal::remove_decoder(int index) | |
105 | { | |
106 | assert(index >= 0); | |
107 | assert(index < (int)stack_.size()); | |
108 | ||
109 | // Find the decoder in the stack | |
110 | auto iter = stack_.begin(); | |
111 | for (int i = 0; i < index; i++, iter++) | |
112 | assert(iter != stack_.end()); | |
113 | ||
114 | // Delete the element | |
115 | stack_.erase(iter); | |
116 | ||
117 | // Update channels and decoded data | |
118 | stack_config_changed_ = true; | |
119 | update_channel_list(); | |
120 | begin_decode(); | |
121 | } | |
122 | ||
123 | bool DecodeSignal::toggle_decoder_visibility(int index) | |
124 | { | |
125 | auto iter = stack_.cbegin(); | |
126 | for (int i = 0; i < index; i++, iter++) | |
127 | assert(iter != stack_.end()); | |
128 | ||
129 | shared_ptr<Decoder> dec = *iter; | |
130 | ||
131 | // Toggle decoder visibility | |
132 | bool state = false; | |
133 | if (dec) { | |
134 | state = !dec->shown(); | |
135 | dec->show(state); | |
136 | } | |
137 | ||
138 | return state; | |
139 | } | |
140 | ||
141 | void DecodeSignal::reset_decode(bool shutting_down) | |
142 | { | |
143 | if (stack_config_changed_ || shutting_down) | |
144 | stop_srd_session(); | |
145 | else | |
146 | terminate_srd_session(); | |
147 | ||
148 | if (decode_thread_.joinable()) { | |
149 | decode_interrupt_ = true; | |
150 | decode_input_cond_.notify_one(); | |
151 | decode_thread_.join(); | |
152 | } | |
153 | ||
154 | if (logic_mux_thread_.joinable()) { | |
155 | logic_mux_interrupt_ = true; | |
156 | logic_mux_cond_.notify_one(); | |
157 | logic_mux_thread_.join(); | |
158 | } | |
159 | ||
160 | resume_decode(); // Make sure the decode thread isn't blocked by pausing | |
161 | ||
162 | class_rows_.clear(); | |
163 | current_segment_id_ = 0; | |
164 | segments_.clear(); | |
165 | ||
166 | logic_mux_data_.reset(); | |
167 | logic_mux_data_invalid_ = true; | |
168 | ||
169 | if (!error_message_.isEmpty()) { | |
170 | error_message_ = QString(); | |
171 | // TODO Emulate noquote() | |
172 | qDebug().nospace() << name() << ": Error cleared"; | |
173 | } | |
174 | ||
175 | decode_reset(); | |
176 | } | |
177 | ||
178 | void DecodeSignal::begin_decode() | |
179 | { | |
180 | if (decode_thread_.joinable()) { | |
181 | decode_interrupt_ = true; | |
182 | decode_input_cond_.notify_one(); | |
183 | decode_thread_.join(); | |
184 | } | |
185 | ||
186 | if (logic_mux_thread_.joinable()) { | |
187 | logic_mux_interrupt_ = true; | |
188 | logic_mux_cond_.notify_one(); | |
189 | logic_mux_thread_.join(); | |
190 | } | |
191 | ||
192 | reset_decode(); | |
193 | ||
194 | if (stack_.size() == 0) { | |
195 | set_error_message(tr("No decoders")); | |
196 | return; | |
197 | } | |
198 | ||
199 | assert(channels_.size() > 0); | |
200 | ||
201 | if (get_assigned_signal_count() == 0) { | |
202 | set_error_message(tr("There are no channels assigned to this decoder")); | |
203 | return; | |
204 | } | |
205 | ||
206 | // Make sure that all assigned channels still provide logic data | |
207 | // (can happen when a converted signal was assigned but the | |
208 | // conversion removed in the meanwhile) | |
209 | for (decode::DecodeChannel& ch : channels_) | |
210 | if (ch.assigned_signal && !(ch.assigned_signal->logic_data() != nullptr)) | |
211 | ch.assigned_signal = nullptr; | |
212 | ||
213 | // Check that all decoders have the required channels | |
214 | for (const shared_ptr<decode::Decoder>& dec : stack_) | |
215 | if (!dec->have_required_channels()) { | |
216 | set_error_message(tr("One or more required channels " | |
217 | "have not been specified")); | |
218 | return; | |
219 | } | |
220 | ||
221 | // Map out all the annotation classes | |
222 | int row_index = 0; | |
223 | for (const shared_ptr<decode::Decoder>& dec : stack_) { | |
224 | assert(dec); | |
225 | const srd_decoder *const decc = dec->decoder(); | |
226 | assert(dec->decoder()); | |
227 | ||
228 | for (const GSList *l = decc->annotation_rows; l; l = l->next) { | |
229 | const srd_decoder_annotation_row *const ann_row = | |
230 | (srd_decoder_annotation_row *)l->data; | |
231 | assert(ann_row); | |
232 | ||
233 | const Row row(row_index++, decc, ann_row); | |
234 | ||
235 | for (const GSList *ll = ann_row->ann_classes; | |
236 | ll; ll = ll->next) | |
237 | class_rows_[make_pair(decc, | |
238 | GPOINTER_TO_INT(ll->data))] = row; | |
239 | } | |
240 | } | |
241 | ||
242 | // Free the logic data and its segment(s) if it needs to be updated | |
243 | if (logic_mux_data_invalid_) | |
244 | logic_mux_data_.reset(); | |
245 | ||
246 | if (!logic_mux_data_) { | |
247 | const uint32_t ch_count = get_assigned_signal_count(); | |
248 | logic_mux_unit_size_ = (ch_count + 7) / 8; | |
249 | logic_mux_data_ = make_shared<Logic>(ch_count); | |
250 | } | |
251 | ||
252 | // Receive notifications when new sample data is available | |
253 | connect_input_notifiers(); | |
254 | ||
255 | if (get_input_segment_count() == 0) { | |
256 | set_error_message(tr("No input data")); | |
257 | return; | |
258 | } | |
259 | ||
260 | // Make sure the logic output data is complete and up-to-date | |
261 | logic_mux_interrupt_ = false; | |
262 | logic_mux_thread_ = std::thread(&DecodeSignal::logic_mux_proc, this); | |
263 | ||
264 | // Decode the muxed logic data | |
265 | decode_interrupt_ = false; | |
266 | decode_thread_ = std::thread(&DecodeSignal::decode_proc, this); | |
267 | } | |
268 | ||
269 | void DecodeSignal::pause_decode() | |
270 | { | |
271 | decode_paused_ = true; | |
272 | } | |
273 | ||
274 | void DecodeSignal::resume_decode() | |
275 | { | |
276 | // Manual unlocking is done before notifying, to avoid waking up the | |
277 | // waiting thread only to block again (see notify_one for details) | |
278 | decode_pause_mutex_.unlock(); | |
279 | decode_pause_cond_.notify_one(); | |
280 | decode_paused_ = false; | |
281 | } | |
282 | ||
283 | bool DecodeSignal::is_paused() const | |
284 | { | |
285 | return decode_paused_; | |
286 | } | |
287 | ||
288 | QString DecodeSignal::error_message() const | |
289 | { | |
290 | lock_guard<mutex> lock(output_mutex_); | |
291 | return error_message_; | |
292 | } | |
293 | ||
294 | const vector<decode::DecodeChannel> DecodeSignal::get_channels() const | |
295 | { | |
296 | return channels_; | |
297 | } | |
298 | ||
299 | void DecodeSignal::auto_assign_signals(const shared_ptr<Decoder> dec) | |
300 | { | |
301 | bool new_assignment = false; | |
302 | ||
303 | // Try to auto-select channels that don't have signals assigned yet | |
304 | for (decode::DecodeChannel& ch : channels_) { | |
305 | // If a decoder is given, auto-assign only its channels | |
306 | if (dec && (ch.decoder_ != dec)) | |
307 | continue; | |
308 | ||
309 | if (ch.assigned_signal) | |
310 | continue; | |
311 | ||
312 | QString ch_name = ch.name.toLower(); | |
313 | ch_name = ch_name.replace(QRegExp("[-_.]"), " "); | |
314 | ||
315 | shared_ptr<data::SignalBase> match; | |
316 | for (const shared_ptr<data::SignalBase>& s : session_.signalbases()) { | |
317 | if (!s->enabled()) | |
318 | continue; | |
319 | ||
320 | QString s_name = s->name().toLower(); | |
321 | s_name = s_name.replace(QRegExp("[-_.]"), " "); | |
322 | ||
323 | if (s->logic_data() && | |
324 | ((ch_name.contains(s_name)) || (s_name.contains(ch_name)))) { | |
325 | if (!match) | |
326 | match = s; | |
327 | else { | |
328 | // Only replace an existing match if it matches more characters | |
329 | int old_unmatched = ch_name.length() - match->name().length(); | |
330 | int new_unmatched = ch_name.length() - s->name().length(); | |
331 | if (abs(new_unmatched) < abs(old_unmatched)) | |
332 | match = s; | |
333 | } | |
334 | } | |
335 | } | |
336 | ||
337 | if (match) { | |
338 | ch.assigned_signal = match.get(); | |
339 | new_assignment = true; | |
340 | } | |
341 | } | |
342 | ||
343 | if (new_assignment) { | |
344 | logic_mux_data_invalid_ = true; | |
345 | stack_config_changed_ = true; | |
346 | commit_decoder_channels(); | |
347 | channels_updated(); | |
348 | } | |
349 | } | |
350 | ||
351 | void DecodeSignal::assign_signal(const uint16_t channel_id, const SignalBase *signal) | |
352 | { | |
353 | for (decode::DecodeChannel& ch : channels_) | |
354 | if (ch.id == channel_id) { | |
355 | ch.assigned_signal = signal; | |
356 | logic_mux_data_invalid_ = true; | |
357 | } | |
358 | ||
359 | stack_config_changed_ = true; | |
360 | commit_decoder_channels(); | |
361 | channels_updated(); | |
362 | begin_decode(); | |
363 | } | |
364 | ||
365 | int DecodeSignal::get_assigned_signal_count() const | |
366 | { | |
367 | // Count all channels that have a signal assigned to them | |
368 | return count_if(channels_.begin(), channels_.end(), | |
369 | [](decode::DecodeChannel ch) { return ch.assigned_signal; }); | |
370 | } | |
371 | ||
372 | void DecodeSignal::set_initial_pin_state(const uint16_t channel_id, const int init_state) | |
373 | { | |
374 | for (decode::DecodeChannel& ch : channels_) | |
375 | if (ch.id == channel_id) | |
376 | ch.initial_pin_state = init_state; | |
377 | ||
378 | stack_config_changed_ = true; | |
379 | channels_updated(); | |
380 | begin_decode(); | |
381 | } | |
382 | ||
383 | double DecodeSignal::samplerate() const | |
384 | { | |
385 | double result = 0; | |
386 | ||
387 | // TODO For now, we simply return the first samplerate that we have | |
388 | if (segments_.size() > 0) | |
389 | result = segments_.front().samplerate; | |
390 | ||
391 | return result; | |
392 | } | |
393 | ||
394 | const pv::util::Timestamp DecodeSignal::start_time() const | |
395 | { | |
396 | pv::util::Timestamp result; | |
397 | ||
398 | // TODO For now, we simply return the first start time that we have | |
399 | if (segments_.size() > 0) | |
400 | result = segments_.front().start_time; | |
401 | ||
402 | return result; | |
403 | } | |
404 | ||
405 | int64_t DecodeSignal::get_working_sample_count(uint32_t segment_id) const | |
406 | { | |
407 | // The working sample count is the highest sample number for | |
408 | // which all used signals have data available, so go through all | |
409 | // channels and use the lowest overall sample count of the segment | |
410 | ||
411 | int64_t count = std::numeric_limits<int64_t>::max(); | |
412 | bool no_signals_assigned = true; | |
413 | ||
414 | for (const decode::DecodeChannel& ch : channels_) | |
415 | if (ch.assigned_signal) { | |
416 | no_signals_assigned = false; | |
417 | ||
418 | const shared_ptr<Logic> logic_data = ch.assigned_signal->logic_data(); | |
419 | if (!logic_data || logic_data->logic_segments().empty()) | |
420 | return 0; | |
421 | ||
422 | try { | |
423 | const shared_ptr<LogicSegment> segment = logic_data->logic_segments().at(segment_id); | |
424 | count = min(count, (int64_t)segment->get_sample_count()); | |
425 | } catch (out_of_range&) { | |
426 | return 0; | |
427 | } | |
428 | } | |
429 | ||
430 | return (no_signals_assigned ? 0 : count); | |
431 | } | |
432 | ||
433 | int64_t DecodeSignal::get_decoded_sample_count(uint32_t segment_id, | |
434 | bool include_processing) const | |
435 | { | |
436 | lock_guard<mutex> decode_lock(output_mutex_); | |
437 | ||
438 | int64_t result = 0; | |
439 | ||
440 | try { | |
441 | const DecodeSegment *segment = &(segments_.at(segment_id)); | |
442 | if (include_processing) | |
443 | result = segment->samples_decoded_incl; | |
444 | else | |
445 | result = segment->samples_decoded_excl; | |
446 | } catch (out_of_range&) { | |
447 | // Do nothing | |
448 | } | |
449 | ||
450 | return result; | |
451 | } | |
452 | ||
453 | vector<Row> DecodeSignal::get_rows(bool visible_only) const | |
454 | { | |
455 | lock_guard<mutex> lock(output_mutex_); | |
456 | ||
457 | vector<Row> rows; | |
458 | ||
459 | for (const shared_ptr<decode::Decoder>& dec : stack_) { | |
460 | assert(dec); | |
461 | if (visible_only && !dec->shown()) | |
462 | continue; | |
463 | ||
464 | const srd_decoder *const decc = dec->decoder(); | |
465 | assert(dec->decoder()); | |
466 | ||
467 | int row_index = 0; | |
468 | // Add a row for the decoder if it doesn't have a row list | |
469 | if (!decc->annotation_rows) | |
470 | rows.emplace_back(row_index++, decc); | |
471 | ||
472 | // Add the decoder rows | |
473 | for (const GSList *l = decc->annotation_rows; l; l = l->next) { | |
474 | const srd_decoder_annotation_row *const ann_row = | |
475 | (srd_decoder_annotation_row *)l->data; | |
476 | assert(ann_row); | |
477 | rows.emplace_back(row_index++, decc, ann_row); | |
478 | } | |
479 | } | |
480 | ||
481 | return rows; | |
482 | } | |
483 | ||
484 | void DecodeSignal::get_annotation_subset( | |
485 | vector<pv::data::decode::Annotation> &dest, | |
486 | const decode::Row &row, uint32_t segment_id, uint64_t start_sample, | |
487 | uint64_t end_sample) const | |
488 | { | |
489 | lock_guard<mutex> lock(output_mutex_); | |
490 | ||
491 | try { | |
492 | const DecodeSegment *segment = &(segments_.at(segment_id)); | |
493 | const map<const decode::Row, decode::RowData> *rows = | |
494 | &(segment->annotation_rows); | |
495 | ||
496 | const auto iter = rows->find(row); | |
497 | if (iter != rows->end()) | |
498 | (*iter).second.get_annotation_subset(dest, | |
499 | start_sample, end_sample); | |
500 | } catch (out_of_range&) { | |
501 | // Do nothing | |
502 | } | |
503 | } | |
504 | ||
505 | void DecodeSignal::get_annotation_subset( | |
506 | vector<pv::data::decode::Annotation> &dest, | |
507 | uint32_t segment_id, uint64_t start_sample, uint64_t end_sample) const | |
508 | { | |
509 | // Note: We put all vectors and lists on the heap, not the stack | |
510 | ||
511 | const vector<Row> rows = get_rows(true); | |
512 | ||
513 | // Use forward_lists for faster merging | |
514 | forward_list<Annotation> *all_ann_list = new forward_list<Annotation>(); | |
515 | ||
516 | for (const Row& row : rows) { | |
517 | vector<Annotation> *ann_vector = new vector<Annotation>(); | |
518 | get_annotation_subset(*ann_vector, row, segment_id, start_sample, end_sample); | |
519 | ||
520 | forward_list<Annotation> *ann_list = | |
521 | new forward_list<Annotation>(ann_vector->begin(), ann_vector->end()); | |
522 | delete ann_vector; | |
523 | ||
524 | all_ann_list->merge(*ann_list); | |
525 | delete ann_list; | |
526 | } | |
527 | ||
528 | move(all_ann_list->begin(), all_ann_list->end(), back_inserter(dest)); | |
529 | delete all_ann_list; | |
530 | } | |
531 | ||
532 | uint32_t DecodeSignal::get_binary_data_chunk_count(uint32_t segment_id) const | |
533 | { | |
534 | uint32_t count = 0; | |
535 | ||
536 | try { | |
537 | const DecodeSegment *segment = &(segments_.at(segment_id)); | |
538 | count = segment->binary_data.size(); | |
539 | } catch (out_of_range&) { | |
540 | // Do nothing | |
541 | } | |
542 | ||
543 | return count; | |
544 | } | |
545 | ||
546 | void DecodeSignal::get_binary_data_chunk(uint32_t segment_id, uint32_t chunk_id, | |
547 | const vector<uint8_t> **dest, uint64_t *size) | |
548 | { | |
549 | try { | |
550 | const DecodeSegment *segment = &(segments_.at(segment_id)); | |
551 | if (dest) | |
552 | *dest = &(segment->binary_data.at(chunk_id).data); | |
553 | if (size) | |
554 | *size = segment->binary_data.at(chunk_id).data.size(); | |
555 | } catch (out_of_range&) { | |
556 | // Do nothing | |
557 | } | |
558 | } | |
559 | ||
560 | void DecodeSignal::get_binary_data_chunks_merged(uint32_t segment_id, | |
561 | uint64_t start_sample, uint64_t end_sample, vector<uint8_t> *dest) const | |
562 | { | |
563 | assert(dest != nullptr); | |
564 | ||
565 | try { | |
566 | const DecodeSegment *segment = &(segments_.at(segment_id)); | |
567 | ||
568 | // Determine overall size before copying to resize dest vector only once | |
569 | uint64_t size = 0; | |
570 | uint64_t matches = 0; | |
571 | for (const DecodeBinaryData& d : segment->binary_data) | |
572 | if ((d.sample >= start_sample) && (d.sample < end_sample)) { | |
573 | size += d.data.size(); | |
574 | matches++; | |
575 | } | |
576 | dest->resize(size); | |
577 | ||
578 | uint64_t offset = 0; | |
579 | uint64_t matches2 = 0; | |
580 | for (const DecodeBinaryData& d : segment->binary_data) | |
581 | if ((d.sample >= start_sample) && (d.sample < end_sample)) { | |
582 | memcpy(dest->data() + offset, d.data.data(), d.data.size()); | |
583 | offset += d.data.size(); | |
584 | matches2++; | |
585 | ||
586 | // Make sure we don't overwrite memory if the array grew in the meanwhile | |
587 | if (matches2 == matches) | |
588 | break; | |
589 | } | |
590 | } catch (out_of_range&) { | |
591 | // Do nothing | |
592 | } | |
593 | } | |
594 | ||
595 | ||
596 | void DecodeSignal::save_settings(QSettings &settings) const | |
597 | { | |
598 | SignalBase::save_settings(settings); | |
599 | ||
600 | settings.setValue("decoders", (int)(stack_.size())); | |
601 | ||
602 | // Save decoder stack | |
603 | int decoder_idx = 0; | |
604 | for (const shared_ptr<decode::Decoder>& decoder : stack_) { | |
605 | settings.beginGroup("decoder" + QString::number(decoder_idx++)); | |
606 | ||
607 | settings.setValue("id", decoder->decoder()->id); | |
608 | settings.setValue("shown", decoder->shown()); | |
609 | ||
610 | // Save decoder options | |
611 | const map<string, GVariant*>& options = decoder->options(); | |
612 | ||
613 | settings.setValue("options", (int)options.size()); | |
614 | ||
615 | // Note: decode::Decoder::options() returns only the options | |
616 | // that differ from the default. See binding::Decoder::getter() | |
617 | int i = 0; | |
618 | for (auto& option : options) { | |
619 | settings.beginGroup("option" + QString::number(i)); | |
620 | settings.setValue("name", QString::fromStdString(option.first)); | |
621 | GlobalSettings::store_gvariant(settings, option.second); | |
622 | settings.endGroup(); | |
623 | i++; | |
624 | } | |
625 | ||
626 | settings.endGroup(); | |
627 | } | |
628 | ||
629 | // Save channel mapping | |
630 | settings.setValue("channels", (int)channels_.size()); | |
631 | ||
632 | for (unsigned int channel_id = 0; channel_id < channels_.size(); channel_id++) { | |
633 | auto channel = find_if(channels_.begin(), channels_.end(), | |
634 | [&](decode::DecodeChannel ch) { return ch.id == channel_id; }); | |
635 | ||
636 | if (channel == channels_.end()) { | |
637 | qDebug() << "ERROR: Gap in channel index:" << channel_id; | |
638 | continue; | |
639 | } | |
640 | ||
641 | settings.beginGroup("channel" + QString::number(channel_id)); | |
642 | ||
643 | settings.setValue("name", channel->name); // Useful for debugging | |
644 | settings.setValue("initial_pin_state", channel->initial_pin_state); | |
645 | ||
646 | if (channel->assigned_signal) | |
647 | settings.setValue("assigned_signal_name", channel->assigned_signal->name()); | |
648 | ||
649 | settings.endGroup(); | |
650 | } | |
651 | } | |
652 | ||
653 | void DecodeSignal::restore_settings(QSettings &settings) | |
654 | { | |
655 | SignalBase::restore_settings(settings); | |
656 | ||
657 | // Restore decoder stack | |
658 | GSList *dec_list = g_slist_copy((GSList*)srd_decoder_list()); | |
659 | ||
660 | int decoders = settings.value("decoders").toInt(); | |
661 | ||
662 | for (int decoder_idx = 0; decoder_idx < decoders; decoder_idx++) { | |
663 | settings.beginGroup("decoder" + QString::number(decoder_idx)); | |
664 | ||
665 | QString id = settings.value("id").toString(); | |
666 | ||
667 | for (GSList *entry = dec_list; entry; entry = entry->next) { | |
668 | const srd_decoder *dec = (srd_decoder*)entry->data; | |
669 | if (!dec) | |
670 | continue; | |
671 | ||
672 | if (QString::fromUtf8(dec->id) == id) { | |
673 | shared_ptr<decode::Decoder> decoder = | |
674 | make_shared<decode::Decoder>(dec); | |
675 | ||
676 | stack_.push_back(decoder); | |
677 | decoder->show(settings.value("shown", true).toBool()); | |
678 | ||
679 | // Restore decoder options that differ from their default | |
680 | int options = settings.value("options").toInt(); | |
681 | ||
682 | for (int i = 0; i < options; i++) { | |
683 | settings.beginGroup("option" + QString::number(i)); | |
684 | QString name = settings.value("name").toString(); | |
685 | GVariant *value = GlobalSettings::restore_gvariant(settings); | |
686 | decoder->set_option(name.toUtf8(), value); | |
687 | settings.endGroup(); | |
688 | } | |
689 | ||
690 | // Include the newly created decode channels in the channel lists | |
691 | update_channel_list(); | |
692 | break; | |
693 | } | |
694 | } | |
695 | ||
696 | settings.endGroup(); | |
697 | channels_updated(); | |
698 | } | |
699 | ||
700 | // Restore channel mapping | |
701 | unsigned int channels = settings.value("channels").toInt(); | |
702 | ||
703 | const unordered_set< shared_ptr<data::SignalBase> > signalbases = | |
704 | session_.signalbases(); | |
705 | ||
706 | for (unsigned int channel_id = 0; channel_id < channels; channel_id++) { | |
707 | auto channel = find_if(channels_.begin(), channels_.end(), | |
708 | [&](decode::DecodeChannel ch) { return ch.id == channel_id; }); | |
709 | ||
710 | if (channel == channels_.end()) { | |
711 | qDebug() << "ERROR: Non-existant channel index:" << channel_id; | |
712 | continue; | |
713 | } | |
714 | ||
715 | settings.beginGroup("channel" + QString::number(channel_id)); | |
716 | ||
717 | QString assigned_signal_name = settings.value("assigned_signal_name").toString(); | |
718 | ||
719 | for (const shared_ptr<data::SignalBase>& signal : signalbases) | |
720 | if (signal->name() == assigned_signal_name) | |
721 | channel->assigned_signal = signal.get(); | |
722 | ||
723 | channel->initial_pin_state = settings.value("initial_pin_state").toInt(); | |
724 | ||
725 | settings.endGroup(); | |
726 | } | |
727 | ||
728 | // Update the internal structures | |
729 | stack_config_changed_ = true; | |
730 | update_channel_list(); | |
731 | commit_decoder_channels(); | |
732 | ||
733 | begin_decode(); | |
734 | } | |
735 | ||
736 | void DecodeSignal::set_error_message(QString msg) | |
737 | { | |
738 | error_message_ = msg; | |
739 | // TODO Emulate noquote() | |
740 | qDebug().nospace() << name() << ": " << msg; | |
741 | } | |
742 | ||
743 | uint32_t DecodeSignal::get_input_segment_count() const | |
744 | { | |
745 | uint64_t count = std::numeric_limits<uint64_t>::max(); | |
746 | bool no_signals_assigned = true; | |
747 | ||
748 | for (const decode::DecodeChannel& ch : channels_) | |
749 | if (ch.assigned_signal) { | |
750 | no_signals_assigned = false; | |
751 | ||
752 | const shared_ptr<Logic> logic_data = ch.assigned_signal->logic_data(); | |
753 | if (!logic_data || logic_data->logic_segments().empty()) | |
754 | return 0; | |
755 | ||
756 | // Find the min value of all segment counts | |
757 | if ((uint64_t)(logic_data->logic_segments().size()) < count) | |
758 | count = logic_data->logic_segments().size(); | |
759 | } | |
760 | ||
761 | return (no_signals_assigned ? 0 : count); | |
762 | } | |
763 | ||
764 | uint32_t DecodeSignal::get_input_samplerate(uint32_t segment_id) const | |
765 | { | |
766 | double samplerate = 0; | |
767 | ||
768 | for (const decode::DecodeChannel& ch : channels_) | |
769 | if (ch.assigned_signal) { | |
770 | const shared_ptr<Logic> logic_data = ch.assigned_signal->logic_data(); | |
771 | if (!logic_data || logic_data->logic_segments().empty()) | |
772 | continue; | |
773 | ||
774 | try { | |
775 | const shared_ptr<LogicSegment> segment = logic_data->logic_segments().at(segment_id); | |
776 | samplerate = segment->samplerate(); | |
777 | } catch (out_of_range&) { | |
778 | // Do nothing | |
779 | } | |
780 | break; | |
781 | } | |
782 | ||
783 | return samplerate; | |
784 | } | |
785 | ||
786 | void DecodeSignal::update_channel_list() | |
787 | { | |
788 | vector<decode::DecodeChannel> prev_channels = channels_; | |
789 | channels_.clear(); | |
790 | ||
791 | uint16_t id = 0; | |
792 | ||
793 | // Copy existing entries, create new as needed | |
794 | for (shared_ptr<Decoder>& decoder : stack_) { | |
795 | const srd_decoder* srd_d = decoder->decoder(); | |
796 | const GSList *l; | |
797 | ||
798 | // Mandatory channels | |
799 | for (l = srd_d->channels; l; l = l->next) { | |
800 | const struct srd_channel *const pdch = (struct srd_channel *)l->data; | |
801 | bool ch_added = false; | |
802 | ||
803 | // Copy but update ID if this channel was in the list before | |
804 | for (decode::DecodeChannel& ch : prev_channels) | |
805 | if (ch.pdch_ == pdch) { | |
806 | ch.id = id++; | |
807 | channels_.push_back(ch); | |
808 | ch_added = true; | |
809 | break; | |
810 | } | |
811 | ||
812 | if (!ch_added) { | |
813 | // Create new entry without a mapped signal | |
814 | decode::DecodeChannel ch = {id++, 0, false, nullptr, | |
815 | QString::fromUtf8(pdch->name), QString::fromUtf8(pdch->desc), | |
816 | SRD_INITIAL_PIN_SAME_AS_SAMPLE0, decoder, pdch}; | |
817 | channels_.push_back(ch); | |
818 | } | |
819 | } | |
820 | ||
821 | // Optional channels | |
822 | for (l = srd_d->opt_channels; l; l = l->next) { | |
823 | const struct srd_channel *const pdch = (struct srd_channel *)l->data; | |
824 | bool ch_added = false; | |
825 | ||
826 | // Copy but update ID if this channel was in the list before | |
827 | for (decode::DecodeChannel& ch : prev_channels) | |
828 | if (ch.pdch_ == pdch) { | |
829 | ch.id = id++; | |
830 | channels_.push_back(ch); | |
831 | ch_added = true; | |
832 | break; | |
833 | } | |
834 | ||
835 | if (!ch_added) { | |
836 | // Create new entry without a mapped signal | |
837 | decode::DecodeChannel ch = {id++, 0, true, nullptr, | |
838 | QString::fromUtf8(pdch->name), QString::fromUtf8(pdch->desc), | |
839 | SRD_INITIAL_PIN_SAME_AS_SAMPLE0, decoder, pdch}; | |
840 | channels_.push_back(ch); | |
841 | } | |
842 | } | |
843 | } | |
844 | ||
845 | // Invalidate the logic output data if the channel assignment changed | |
846 | if (prev_channels.size() != channels_.size()) { | |
847 | // The number of channels changed, there's definitely a difference | |
848 | logic_mux_data_invalid_ = true; | |
849 | } else { | |
850 | // Same number but assignment may still differ, so compare all channels | |
851 | for (size_t i = 0; i < channels_.size(); i++) { | |
852 | const decode::DecodeChannel& p_ch = prev_channels[i]; | |
853 | const decode::DecodeChannel& ch = channels_[i]; | |
854 | ||
855 | if ((p_ch.pdch_ != ch.pdch_) || | |
856 | (p_ch.assigned_signal != ch.assigned_signal)) { | |
857 | logic_mux_data_invalid_ = true; | |
858 | break; | |
859 | } | |
860 | } | |
861 | ||
862 | } | |
863 | ||
864 | channels_updated(); | |
865 | } | |
866 | ||
867 | void DecodeSignal::commit_decoder_channels() | |
868 | { | |
869 | // Submit channel list to every decoder, containing only the relevant channels | |
870 | for (shared_ptr<decode::Decoder> dec : stack_) { | |
871 | vector<decode::DecodeChannel*> channel_list; | |
872 | ||
873 | for (decode::DecodeChannel& ch : channels_) | |
874 | if (ch.decoder_ == dec) | |
875 | channel_list.push_back(&ch); | |
876 | ||
877 | dec->set_channels(channel_list); | |
878 | } | |
879 | ||
880 | // Channel bit IDs must be in sync with the channel's apperance in channels_ | |
881 | int id = 0; | |
882 | for (decode::DecodeChannel& ch : channels_) | |
883 | if (ch.assigned_signal) | |
884 | ch.bit_id = id++; | |
885 | } | |
886 | ||
887 | void DecodeSignal::mux_logic_samples(uint32_t segment_id, const int64_t start, const int64_t end) | |
888 | { | |
889 | // Enforce end to be greater than start | |
890 | if (end <= start) | |
891 | return; | |
892 | ||
893 | // Fetch the channel segments and their data | |
894 | vector<shared_ptr<LogicSegment> > segments; | |
895 | vector<const uint8_t*> signal_data; | |
896 | vector<uint8_t> signal_in_bytepos; | |
897 | vector<uint8_t> signal_in_bitpos; | |
898 | ||
899 | for (decode::DecodeChannel& ch : channels_) | |
900 | if (ch.assigned_signal) { | |
901 | const shared_ptr<Logic> logic_data = ch.assigned_signal->logic_data(); | |
902 | ||
903 | shared_ptr<LogicSegment> segment; | |
904 | try { | |
905 | segment = logic_data->logic_segments().at(segment_id); | |
906 | } catch (out_of_range&) { | |
907 | qDebug() << "Muxer error for" << name() << ":" << ch.assigned_signal->name() \ | |
908 | << "has no logic segment" << segment_id; | |
909 | return; | |
910 | } | |
911 | segments.push_back(segment); | |
912 | ||
913 | uint8_t* data = new uint8_t[(end - start) * segment->unit_size()]; | |
914 | segment->get_samples(start, end, data); | |
915 | signal_data.push_back(data); | |
916 | ||
917 | const int bitpos = ch.assigned_signal->logic_bit_index(); | |
918 | signal_in_bytepos.push_back(bitpos / 8); | |
919 | signal_in_bitpos.push_back(bitpos % 8); | |
920 | } | |
921 | ||
922 | ||
923 | shared_ptr<LogicSegment> output_segment; | |
924 | try { | |
925 | output_segment = logic_mux_data_->logic_segments().at(segment_id); | |
926 | } catch (out_of_range&) { | |
927 | qDebug() << "Muxer error for" << name() << ": no logic mux segment" \ | |
928 | << segment_id << "in mux_logic_samples(), mux segments size is" \ | |
929 | << logic_mux_data_->logic_segments().size(); | |
930 | return; | |
931 | } | |
932 | ||
933 | // Perform the muxing of signal data into the output data | |
934 | uint8_t* output = new uint8_t[(end - start) * output_segment->unit_size()]; | |
935 | unsigned int signal_count = signal_data.size(); | |
936 | ||
937 | for (int64_t sample_cnt = 0; !logic_mux_interrupt_ && (sample_cnt < (end - start)); | |
938 | sample_cnt++) { | |
939 | ||
940 | int bitpos = 0; | |
941 | uint8_t bytepos = 0; | |
942 | ||
943 | const int out_sample_pos = sample_cnt * output_segment->unit_size(); | |
944 | for (unsigned int i = 0; i < output_segment->unit_size(); i++) | |
945 | output[out_sample_pos + i] = 0; | |
946 | ||
947 | for (unsigned int i = 0; i < signal_count; i++) { | |
948 | const int in_sample_pos = sample_cnt * segments[i]->unit_size(); | |
949 | const uint8_t in_sample = 1 & | |
950 | ((signal_data[i][in_sample_pos + signal_in_bytepos[i]]) >> (signal_in_bitpos[i])); | |
951 | ||
952 | const uint8_t out_sample = output[out_sample_pos + bytepos]; | |
953 | ||
954 | output[out_sample_pos + bytepos] = out_sample | (in_sample << bitpos); | |
955 | ||
956 | bitpos++; | |
957 | if (bitpos > 7) { | |
958 | bitpos = 0; | |
959 | bytepos++; | |
960 | } | |
961 | } | |
962 | } | |
963 | ||
964 | output_segment->append_payload(output, (end - start) * output_segment->unit_size()); | |
965 | delete[] output; | |
966 | ||
967 | for (const uint8_t* data : signal_data) | |
968 | delete[] data; | |
969 | } | |
970 | ||
971 | void DecodeSignal::logic_mux_proc() | |
972 | { | |
973 | uint32_t segment_id = 0; | |
974 | ||
975 | assert(logic_mux_data_); | |
976 | ||
977 | // Create initial logic mux segment | |
978 | shared_ptr<LogicSegment> output_segment = | |
979 | make_shared<LogicSegment>(*logic_mux_data_, segment_id, | |
980 | logic_mux_unit_size_, 0); | |
981 | logic_mux_data_->push_segment(output_segment); | |
982 | ||
983 | output_segment->set_samplerate(get_input_samplerate(0)); | |
984 | ||
985 | do { | |
986 | const uint64_t input_sample_count = get_working_sample_count(segment_id); | |
987 | const uint64_t output_sample_count = output_segment->get_sample_count(); | |
988 | ||
989 | const uint64_t samples_to_process = | |
990 | (input_sample_count > output_sample_count) ? | |
991 | (input_sample_count - output_sample_count) : 0; | |
992 | ||
993 | // Process the samples if necessary... | |
994 | if (samples_to_process > 0) { | |
995 | const uint64_t unit_size = output_segment->unit_size(); | |
996 | const uint64_t chunk_sample_count = DecodeChunkLength / unit_size; | |
997 | ||
998 | uint64_t processed_samples = 0; | |
999 | do { | |
1000 | const uint64_t start_sample = output_sample_count + processed_samples; | |
1001 | const uint64_t sample_count = | |
1002 | min(samples_to_process - processed_samples, chunk_sample_count); | |
1003 | ||
1004 | mux_logic_samples(segment_id, start_sample, start_sample + sample_count); | |
1005 | processed_samples += sample_count; | |
1006 | ||
1007 | // ...and process the newly muxed logic data | |
1008 | decode_input_cond_.notify_one(); | |
1009 | } while (!logic_mux_interrupt_ && (processed_samples < samples_to_process)); | |
1010 | } | |
1011 | ||
1012 | if (samples_to_process == 0) { | |
1013 | // TODO Optimize this by caching the input segment count and only | |
1014 | // querying it when the cached value was reached | |
1015 | if (segment_id < get_input_segment_count() - 1) { | |
1016 | // Process next segment | |
1017 | segment_id++; | |
1018 | ||
1019 | output_segment = | |
1020 | make_shared<LogicSegment>(*logic_mux_data_, segment_id, | |
1021 | logic_mux_unit_size_, 0); | |
1022 | logic_mux_data_->push_segment(output_segment); | |
1023 | ||
1024 | output_segment->set_samplerate(get_input_samplerate(segment_id)); | |
1025 | ||
1026 | } else { | |
1027 | // All segments have been processed | |
1028 | logic_mux_data_invalid_ = false; | |
1029 | ||
1030 | // Wait for more input | |
1031 | unique_lock<mutex> logic_mux_lock(logic_mux_mutex_); | |
1032 | logic_mux_cond_.wait(logic_mux_lock); | |
1033 | } | |
1034 | } | |
1035 | ||
1036 | } while (!logic_mux_interrupt_); | |
1037 | } | |
1038 | ||
1039 | void DecodeSignal::decode_data( | |
1040 | const int64_t abs_start_samplenum, const int64_t sample_count, | |
1041 | const shared_ptr<LogicSegment> input_segment) | |
1042 | { | |
1043 | const int64_t unit_size = input_segment->unit_size(); | |
1044 | const int64_t chunk_sample_count = DecodeChunkLength / unit_size; | |
1045 | ||
1046 | for (int64_t i = abs_start_samplenum; | |
1047 | error_message_.isEmpty() && !decode_interrupt_ && | |
1048 | (i < (abs_start_samplenum + sample_count)); | |
1049 | i += chunk_sample_count) { | |
1050 | ||
1051 | const int64_t chunk_end = min(i + chunk_sample_count, | |
1052 | abs_start_samplenum + sample_count); | |
1053 | ||
1054 | { | |
1055 | lock_guard<mutex> lock(output_mutex_); | |
1056 | // Update the sample count showing the samples including currently processed ones | |
1057 | segments_.at(current_segment_id_).samples_decoded_incl = chunk_end; | |
1058 | } | |
1059 | ||
1060 | int64_t data_size = (chunk_end - i) * unit_size; | |
1061 | uint8_t* chunk = new uint8_t[data_size]; | |
1062 | input_segment->get_samples(i, chunk_end, chunk); | |
1063 | ||
1064 | if (srd_session_send(srd_session_, i, chunk_end, chunk, | |
1065 | data_size, unit_size) != SRD_OK) | |
1066 | set_error_message(tr("Decoder reported an error")); | |
1067 | ||
1068 | delete[] chunk; | |
1069 | ||
1070 | { | |
1071 | lock_guard<mutex> lock(output_mutex_); | |
1072 | // Now that all samples are processed, the exclusive sample count catches up | |
1073 | segments_.at(current_segment_id_).samples_decoded_excl = chunk_end; | |
1074 | } | |
1075 | ||
1076 | // Notify the frontend that we processed some data and | |
1077 | // possibly have new annotations as well | |
1078 | new_annotations(); | |
1079 | ||
1080 | if (decode_paused_) { | |
1081 | unique_lock<mutex> pause_wait_lock(decode_pause_mutex_); | |
1082 | decode_pause_cond_.wait(pause_wait_lock); | |
1083 | } | |
1084 | } | |
1085 | } | |
1086 | ||
1087 | void DecodeSignal::decode_proc() | |
1088 | { | |
1089 | current_segment_id_ = 0; | |
1090 | ||
1091 | // If there is no input data available yet, wait until it is or we're interrupted | |
1092 | if (logic_mux_data_->logic_segments().size() == 0) { | |
1093 | unique_lock<mutex> input_wait_lock(input_mutex_); | |
1094 | decode_input_cond_.wait(input_wait_lock); | |
1095 | } | |
1096 | ||
1097 | if (decode_interrupt_) | |
1098 | return; | |
1099 | ||
1100 | shared_ptr<LogicSegment> input_segment = logic_mux_data_->logic_segments().front(); | |
1101 | assert(input_segment); | |
1102 | ||
1103 | // Create the initial segment and set its sample rate so that we can pass it to SRD | |
1104 | create_decode_segment(); | |
1105 | segments_.at(current_segment_id_).samplerate = input_segment->samplerate(); | |
1106 | segments_.at(current_segment_id_).start_time = input_segment->start_time(); | |
1107 | ||
1108 | start_srd_session(); | |
1109 | ||
1110 | uint64_t sample_count = 0; | |
1111 | uint64_t abs_start_samplenum = 0; | |
1112 | do { | |
1113 | // Keep processing new samples until we exhaust the input data | |
1114 | do { | |
1115 | lock_guard<mutex> input_lock(input_mutex_); | |
1116 | sample_count = input_segment->get_sample_count() - abs_start_samplenum; | |
1117 | ||
1118 | if (sample_count > 0) { | |
1119 | decode_data(abs_start_samplenum, sample_count, input_segment); | |
1120 | abs_start_samplenum += sample_count; | |
1121 | } | |
1122 | } while (error_message_.isEmpty() && (sample_count > 0) && !decode_interrupt_); | |
1123 | ||
1124 | if (error_message_.isEmpty() && !decode_interrupt_ && sample_count == 0) { | |
1125 | if (current_segment_id_ < logic_mux_data_->logic_segments().size() - 1) { | |
1126 | // Process next segment | |
1127 | current_segment_id_++; | |
1128 | ||
1129 | try { | |
1130 | input_segment = logic_mux_data_->logic_segments().at(current_segment_id_); | |
1131 | } catch (out_of_range&) { | |
1132 | qDebug() << "Decode error for" << name() << ": no logic mux segment" \ | |
1133 | << current_segment_id_ << "in decode_proc(), mux segments size is" \ | |
1134 | << logic_mux_data_->logic_segments().size(); | |
1135 | return; | |
1136 | } | |
1137 | abs_start_samplenum = 0; | |
1138 | ||
1139 | // Create the next segment and set its metadata | |
1140 | create_decode_segment(); | |
1141 | segments_.at(current_segment_id_).samplerate = input_segment->samplerate(); | |
1142 | segments_.at(current_segment_id_).start_time = input_segment->start_time(); | |
1143 | ||
1144 | // Reset decoder state but keep the decoder stack intact | |
1145 | terminate_srd_session(); | |
1146 | } else { | |
1147 | // All segments have been processed | |
1148 | decode_finished(); | |
1149 | ||
1150 | // Wait for new input data or an interrupt was requested | |
1151 | unique_lock<mutex> input_wait_lock(input_mutex_); | |
1152 | decode_input_cond_.wait(input_wait_lock); | |
1153 | } | |
1154 | } | |
1155 | } while (error_message_.isEmpty() && !decode_interrupt_); | |
1156 | ||
1157 | // Potentially reap decoders when the application no longer is | |
1158 | // interested in their (pending) results. | |
1159 | if (decode_interrupt_) | |
1160 | terminate_srd_session(); | |
1161 | } | |
1162 | ||
1163 | void DecodeSignal::start_srd_session() | |
1164 | { | |
1165 | // If there were stack changes, the session has been destroyed by now, so if | |
1166 | // it hasn't been destroyed, we can just reset and re-use it | |
1167 | if (srd_session_) { | |
1168 | // When a decoder stack was created before, re-use it | |
1169 | // for the next stream of input data, after terminating | |
1170 | // potentially still executing operations, and resetting | |
1171 | // internal state. Skip the rather expensive (teardown | |
1172 | // and) construction of another decoder stack. | |
1173 | ||
1174 | // TODO Reduce redundancy, use a common code path for | |
1175 | // the meta/start sequence? | |
1176 | terminate_srd_session(); | |
1177 | ||
1178 | // Metadata is cleared also, so re-set it | |
1179 | uint64_t samplerate = 0; | |
1180 | if (segments_.size() > 0) | |
1181 | samplerate = segments_.at(current_segment_id_).samplerate; | |
1182 | if (samplerate) | |
1183 | srd_session_metadata_set(srd_session_, SRD_CONF_SAMPLERATE, | |
1184 | g_variant_new_uint64(samplerate)); | |
1185 | for (const shared_ptr<decode::Decoder>& dec : stack_) | |
1186 | dec->apply_all_options(); | |
1187 | srd_session_start(srd_session_); | |
1188 | ||
1189 | return; | |
1190 | } | |
1191 | ||
1192 | // Create the session | |
1193 | srd_session_new(&srd_session_); | |
1194 | assert(srd_session_); | |
1195 | ||
1196 | // Create the decoders | |
1197 | srd_decoder_inst *prev_di = nullptr; | |
1198 | for (const shared_ptr<decode::Decoder>& dec : stack_) { | |
1199 | srd_decoder_inst *const di = dec->create_decoder_inst(srd_session_); | |
1200 | ||
1201 | if (!di) { | |
1202 | set_error_message(tr("Failed to create decoder instance")); | |
1203 | srd_session_destroy(srd_session_); | |
1204 | srd_session_ = nullptr; | |
1205 | return; | |
1206 | } | |
1207 | ||
1208 | if (prev_di) | |
1209 | srd_inst_stack(srd_session_, prev_di, di); | |
1210 | ||
1211 | prev_di = di; | |
1212 | } | |
1213 | ||
1214 | // Start the session | |
1215 | if (segments_.size() > 0) | |
1216 | srd_session_metadata_set(srd_session_, SRD_CONF_SAMPLERATE, | |
1217 | g_variant_new_uint64(segments_.at(current_segment_id_).samplerate)); | |
1218 | ||
1219 | srd_pd_output_callback_add(srd_session_, SRD_OUTPUT_ANN, | |
1220 | DecodeSignal::annotation_callback, this); | |
1221 | ||
1222 | srd_pd_output_callback_add(srd_session_, SRD_OUTPUT_BINARY, | |
1223 | DecodeSignal::binary_callback, this); | |
1224 | ||
1225 | srd_session_start(srd_session_); | |
1226 | ||
1227 | // We just recreated the srd session, so all stack changes are applied now | |
1228 | stack_config_changed_ = false; | |
1229 | } | |
1230 | ||
1231 | void DecodeSignal::terminate_srd_session() | |
1232 | { | |
1233 | // Call the "terminate and reset" routine for the decoder stack | |
1234 | // (if available). This does not harm those stacks which already | |
1235 | // have completed their operation, and reduces response time for | |
1236 | // those stacks which still are processing data while the | |
1237 | // application no longer wants them to. | |
1238 | if (srd_session_) { | |
1239 | srd_session_terminate_reset(srd_session_); | |
1240 | ||
1241 | // Metadata is cleared also, so re-set it | |
1242 | uint64_t samplerate = 0; | |
1243 | if (segments_.size() > 0) | |
1244 | samplerate = segments_.at(current_segment_id_).samplerate; | |
1245 | if (samplerate) | |
1246 | srd_session_metadata_set(srd_session_, SRD_CONF_SAMPLERATE, | |
1247 | g_variant_new_uint64(samplerate)); | |
1248 | for (const shared_ptr<decode::Decoder>& dec : stack_) | |
1249 | dec->apply_all_options(); | |
1250 | } | |
1251 | } | |
1252 | ||
1253 | void DecodeSignal::stop_srd_session() | |
1254 | { | |
1255 | if (srd_session_) { | |
1256 | // Destroy the session | |
1257 | srd_session_destroy(srd_session_); | |
1258 | srd_session_ = nullptr; | |
1259 | ||
1260 | // Mark the decoder instances as non-existant since they were deleted | |
1261 | for (const shared_ptr<decode::Decoder>& dec : stack_) | |
1262 | dec->invalidate_decoder_inst(); | |
1263 | } | |
1264 | } | |
1265 | ||
1266 | void DecodeSignal::connect_input_notifiers() | |
1267 | { | |
1268 | // Disconnect the notification slot from the previous set of signals | |
1269 | disconnect(this, SLOT(on_data_cleared())); | |
1270 | disconnect(this, SLOT(on_data_received())); | |
1271 | ||
1272 | // Connect the currently used signals to our slot | |
1273 | for (decode::DecodeChannel& ch : channels_) { | |
1274 | if (!ch.assigned_signal) | |
1275 | continue; | |
1276 | ||
1277 | const data::SignalBase *signal = ch.assigned_signal; | |
1278 | connect(signal, SIGNAL(samples_cleared()), | |
1279 | this, SLOT(on_data_cleared())); | |
1280 | connect(signal, SIGNAL(samples_added(uint64_t, uint64_t, uint64_t)), | |
1281 | this, SLOT(on_data_received())); | |
1282 | } | |
1283 | } | |
1284 | ||
1285 | void DecodeSignal::create_decode_segment() | |
1286 | { | |
1287 | // Create annotation segment | |
1288 | segments_.emplace_back(DecodeSegment()); | |
1289 | ||
1290 | // Add annotation classes | |
1291 | for (const shared_ptr<decode::Decoder>& dec : stack_) { | |
1292 | assert(dec); | |
1293 | const srd_decoder *const decc = dec->decoder(); | |
1294 | assert(dec->decoder()); | |
1295 | ||
1296 | int row_index = 0; | |
1297 | // Add a row for the decoder if it doesn't have a row list | |
1298 | if (!decc->annotation_rows) | |
1299 | (segments_.back().annotation_rows)[Row(row_index++, decc)] = | |
1300 | decode::RowData(); | |
1301 | ||
1302 | // Add the decoder rows | |
1303 | for (const GSList *l = decc->annotation_rows; l; l = l->next) { | |
1304 | const srd_decoder_annotation_row *const ann_row = | |
1305 | (srd_decoder_annotation_row *)l->data; | |
1306 | assert(ann_row); | |
1307 | ||
1308 | const Row row(row_index++, decc, ann_row); | |
1309 | ||
1310 | // Add a new empty row data object | |
1311 | (segments_.back().annotation_rows)[row] = | |
1312 | decode::RowData(); | |
1313 | } | |
1314 | } | |
1315 | } | |
1316 | ||
1317 | void DecodeSignal::annotation_callback(srd_proto_data *pdata, void *decode_signal) | |
1318 | { | |
1319 | assert(pdata); | |
1320 | assert(decode_signal); | |
1321 | ||
1322 | DecodeSignal *const ds = (DecodeSignal*)decode_signal; | |
1323 | assert(ds); | |
1324 | ||
1325 | if (ds->decode_interrupt_) | |
1326 | return; | |
1327 | ||
1328 | lock_guard<mutex> lock(ds->output_mutex_); | |
1329 | ||
1330 | // Get the decoder and the annotation data | |
1331 | assert(pdata->pdo); | |
1332 | assert(pdata->pdo->di); | |
1333 | const srd_decoder *const decc = pdata->pdo->di->decoder; | |
1334 | assert(decc); | |
1335 | ||
1336 | const srd_proto_data_annotation *const pda = (const srd_proto_data_annotation*)pdata->data; | |
1337 | assert(pda); | |
1338 | ||
1339 | // Find the row | |
1340 | auto row_iter = ds->segments_.at(ds->current_segment_id_).annotation_rows.end(); | |
1341 | ||
1342 | // Try finding a better row match than the default by looking up the sub-row of this class | |
1343 | const auto format = pda->ann_class; | |
1344 | const auto r = ds->class_rows_.find(make_pair(decc, format)); | |
1345 | if (r != ds->class_rows_.end()) | |
1346 | row_iter = ds->segments_.at(ds->current_segment_id_).annotation_rows.find((*r).second); | |
1347 | else { | |
1348 | // Failing that, use the decoder as a key | |
1349 | row_iter = ds->segments_.at(ds->current_segment_id_).annotation_rows.find(Row(0, decc)); | |
1350 | } | |
1351 | ||
1352 | if (row_iter == ds->segments_.at(ds->current_segment_id_).annotation_rows.end()) { | |
1353 | qDebug() << "Unexpected annotation: decoder = " << decc << | |
1354 | ", format = " << format; | |
1355 | assert(false); | |
1356 | return; | |
1357 | } | |
1358 | ||
1359 | // Add the annotation | |
1360 | (*row_iter).second.emplace_annotation(pdata, &((*row_iter).first)); | |
1361 | } | |
1362 | ||
1363 | void DecodeSignal::binary_callback(srd_proto_data *pdata, void *decode_signal) | |
1364 | { | |
1365 | assert(pdata); | |
1366 | assert(decode_signal); | |
1367 | ||
1368 | DecodeSignal *const ds = (DecodeSignal*)decode_signal; | |
1369 | assert(ds); | |
1370 | ||
1371 | if (ds->decode_interrupt_) | |
1372 | return; | |
1373 | ||
1374 | const srd_proto_data_binary *const pdb = (const srd_proto_data_binary*)pdata->data; | |
1375 | assert(pdb); | |
1376 | ||
1377 | DecodeSegment* segment = &(ds->segments_.at(ds->current_segment_id_)); | |
1378 | ||
1379 | segment->binary_data.emplace_back(); | |
1380 | DecodeBinaryData* bin_data = &(segment->binary_data.back()); | |
1381 | ||
1382 | bin_data->sample = pdata->start_sample; | |
1383 | bin_data->data.resize(pdb->size); | |
1384 | memcpy(bin_data->data.data(), pdb->data, pdb->size); | |
1385 | ||
1386 | ds->new_binary_data(ds->current_segment_id_); | |
1387 | } | |
1388 | ||
1389 | void DecodeSignal::on_capture_state_changed(int state) | |
1390 | { | |
1391 | // If a new acquisition was started, we need to start decoding from scratch | |
1392 | if (state == Session::Running) { | |
1393 | logic_mux_data_invalid_ = true; | |
1394 | begin_decode(); | |
1395 | } | |
1396 | } | |
1397 | ||
1398 | void DecodeSignal::on_data_cleared() | |
1399 | { | |
1400 | reset_decode(); | |
1401 | } | |
1402 | ||
1403 | void DecodeSignal::on_data_received() | |
1404 | { | |
1405 | // If we detected a lack of input data when trying to start decoding, | |
1406 | // we have set an error message. Only try again if we now have data | |
1407 | // to work with | |
1408 | if ((!error_message_.isEmpty()) && (get_input_segment_count() == 0)) | |
1409 | return; | |
1410 | ||
1411 | if (!logic_mux_thread_.joinable()) | |
1412 | begin_decode(); | |
1413 | else | |
1414 | logic_mux_cond_.notify_one(); | |
1415 | } | |
1416 | ||
1417 | } // namespace data | |
1418 | } // namespace pv |