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ad908057 SA |
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 | ||
0c5fe73e SA |
20 | #include <limits> |
21 | ||
47747218 SA |
22 | #include <QDebug> |
23 | ||
ad908057 SA |
24 | #include "logic.hpp" |
25 | #include "logicsegment.hpp" | |
26 | #include "decodesignal.hpp" | |
27 | #include "signaldata.hpp" | |
28 | ||
29 | #include <pv/binding/decoder.hpp> | |
30 | #include <pv/data/decode/decoder.hpp> | |
ecd07c20 | 31 | #include <pv/data/decode/row.hpp> |
d3feec23 | 32 | #include <pv/globalsettings.hpp> |
ad908057 SA |
33 | #include <pv/session.hpp> |
34 | ||
47747218 SA |
35 | using std::lock_guard; |
36 | using std::make_pair; | |
ad908057 | 37 | using std::make_shared; |
0c5fe73e | 38 | using std::min; |
ad908057 | 39 | using std::shared_ptr; |
47747218 SA |
40 | using std::unique_lock; |
41 | using pv::data::decode::Annotation; | |
ad908057 | 42 | using pv::data::decode::Decoder; |
ecd07c20 | 43 | using pv::data::decode::Row; |
ad908057 SA |
44 | |
45 | namespace pv { | |
46 | namespace data { | |
47 | ||
47747218 SA |
48 | const double DecodeSignal::DecodeMargin = 1.0; |
49 | const double DecodeSignal::DecodeThreshold = 0.2; | |
3fbddf7f | 50 | const int64_t DecodeSignal::DecodeChunkLength = 256 * 1024; |
ad908057 | 51 | |
47747218 | 52 | mutex DecodeSignal::global_srd_mutex_; |
9f97b357 | 53 | |
ad908057 | 54 | |
47747218 SA |
55 | DecodeSignal::DecodeSignal(pv::Session &session) : |
56 | SignalBase(nullptr, SignalBase::DecodeChannel), | |
57 | session_(session), | |
e91883bb | 58 | srd_session_(nullptr), |
47747218 SA |
59 | logic_mux_data_invalid_(false), |
60 | start_time_(0), | |
61 | samplerate_(0), | |
47747218 SA |
62 | samples_decoded_(0), |
63 | frame_complete_(false) | |
ad908057 | 64 | { |
47747218 SA |
65 | connect(&session_, SIGNAL(capture_state_changed(int)), |
66 | this, SLOT(on_capture_state_changed(int))); | |
47747218 SA |
67 | |
68 | set_name(tr("Empty decoder signal")); | |
ad908057 SA |
69 | } |
70 | ||
47747218 | 71 | DecodeSignal::~DecodeSignal() |
ad908057 | 72 | { |
1b56c646 | 73 | reset_decode(); |
ad908057 SA |
74 | } |
75 | ||
47747218 | 76 | const vector< shared_ptr<Decoder> >& DecodeSignal::decoder_stack() const |
ecd07c20 | 77 | { |
47747218 | 78 | return stack_; |
ecd07c20 SA |
79 | } |
80 | ||
c8e60bdf | 81 | void DecodeSignal::stack_decoder(const srd_decoder *decoder) |
ad908057 SA |
82 | { |
83 | assert(decoder); | |
47747218 SA |
84 | stack_.push_back(make_shared<decode::Decoder>(decoder)); |
85 | ||
86 | // Set name if this decoder is the first in the list | |
87 | if (stack_.size() == 1) | |
88 | set_name(QString::fromUtf8(decoder->name)); | |
132a5c6d | 89 | |
27a3f09b | 90 | // Include the newly created decode channels in the channel lists |
9f97b357 | 91 | update_channel_list(); |
132a5c6d SA |
92 | |
93 | auto_assign_signals(); | |
27a3f09b | 94 | commit_decoder_channels(); |
47747218 | 95 | begin_decode(); |
ad908057 SA |
96 | } |
97 | ||
98 | void DecodeSignal::remove_decoder(int index) | |
99 | { | |
47747218 SA |
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 | |
9f97b357 | 112 | update_channel_list(); |
47747218 | 113 | begin_decode(); |
ad908057 SA |
114 | } |
115 | ||
116 | bool DecodeSignal::toggle_decoder_visibility(int index) | |
117 | { | |
47747218 | 118 | auto iter = stack_.cbegin(); |
ad908057 | 119 | for (int i = 0; i < index; i++, iter++) |
47747218 | 120 | assert(iter != stack_.end()); |
ad908057 SA |
121 | |
122 | shared_ptr<Decoder> dec = *iter; | |
123 | ||
124 | // Toggle decoder visibility | |
125 | bool state = false; | |
126 | if (dec) { | |
127 | state = !dec->shown(); | |
128 | dec->show(state); | |
129 | } | |
130 | ||
131 | return state; | |
132 | } | |
133 | ||
47747218 SA |
134 | void DecodeSignal::reset_decode() |
135 | { | |
1b56c646 SA |
136 | if (decode_thread_.joinable()) { |
137 | decode_interrupt_ = true; | |
138 | decode_input_cond_.notify_one(); | |
139 | decode_thread_.join(); | |
140 | } | |
141 | ||
142 | if (logic_mux_thread_.joinable()) { | |
143 | logic_mux_interrupt_ = true; | |
144 | logic_mux_cond_.notify_one(); | |
145 | logic_mux_thread_.join(); | |
146 | } | |
147 | ||
e91883bb SA |
148 | stop_srd_session(); |
149 | ||
47747218 SA |
150 | frame_complete_ = false; |
151 | samples_decoded_ = 0; | |
152 | error_message_ = QString(); | |
1b56c646 | 153 | |
47747218 SA |
154 | rows_.clear(); |
155 | class_rows_.clear(); | |
1b56c646 SA |
156 | |
157 | logic_mux_data_.reset(); | |
158 | logic_mux_data_invalid_ = true; | |
47747218 SA |
159 | } |
160 | ||
946b52e1 SA |
161 | void DecodeSignal::begin_decode() |
162 | { | |
47747218 SA |
163 | if (decode_thread_.joinable()) { |
164 | decode_interrupt_ = true; | |
165 | decode_input_cond_.notify_one(); | |
166 | decode_thread_.join(); | |
167 | } | |
168 | ||
169 | if (logic_mux_thread_.joinable()) { | |
170 | logic_mux_interrupt_ = true; | |
171 | logic_mux_cond_.notify_one(); | |
172 | logic_mux_thread_.join(); | |
173 | } | |
174 | ||
175 | reset_decode(); | |
176 | ||
27a3f09b SA |
177 | if (stack_.size() == 0) { |
178 | error_message_ = tr("No decoders"); | |
179 | return; | |
180 | } | |
181 | ||
182 | assert(channels_.size() > 0); | |
183 | ||
184 | if (get_assigned_signal_count() == 0) { | |
185 | error_message_ = tr("There are no channels assigned to this decoder"); | |
186 | return; | |
187 | } | |
188 | ||
04627946 SA |
189 | // Make sure that all assigned channels still provide logic data |
190 | // (can happen when a converted signal was assigned but the | |
191 | // conversion removed in the meanwhile) | |
192 | for (data::DecodeChannel &ch : channels_) | |
193 | if (ch.assigned_signal && !(ch.assigned_signal->logic_data() != nullptr)) | |
194 | ch.assigned_signal = nullptr; | |
195 | ||
47747218 SA |
196 | // Check that all decoders have the required channels |
197 | for (const shared_ptr<decode::Decoder> &dec : stack_) | |
198 | if (!dec->have_required_channels()) { | |
199 | error_message_ = tr("One or more required channels " | |
200 | "have not been specified"); | |
201 | return; | |
202 | } | |
203 | ||
204 | // Add annotation classes | |
205 | for (const shared_ptr<decode::Decoder> &dec : stack_) { | |
206 | assert(dec); | |
207 | const srd_decoder *const decc = dec->decoder(); | |
208 | assert(dec->decoder()); | |
209 | ||
210 | // Add a row for the decoder if it doesn't have a row list | |
211 | if (!decc->annotation_rows) | |
212 | rows_[Row(decc)] = decode::RowData(); | |
213 | ||
214 | // Add the decoder rows | |
215 | for (const GSList *l = decc->annotation_rows; l; l = l->next) { | |
216 | const srd_decoder_annotation_row *const ann_row = | |
217 | (srd_decoder_annotation_row *)l->data; | |
218 | assert(ann_row); | |
219 | ||
220 | const Row row(decc, ann_row); | |
221 | ||
222 | // Add a new empty row data object | |
223 | rows_[row] = decode::RowData(); | |
224 | ||
225 | // Map out all the classes | |
226 | for (const GSList *ll = ann_row->ann_classes; | |
227 | ll; ll = ll->next) | |
228 | class_rows_[make_pair(decc, | |
229 | GPOINTER_TO_INT(ll->data))] = row; | |
230 | } | |
231 | } | |
232 | ||
27a3f09b SA |
233 | // Free the logic data and its segment(s) if it needs to be updated |
234 | if (logic_mux_data_invalid_) | |
235 | logic_mux_data_.reset(); | |
236 | ||
237 | if (!logic_mux_data_) { | |
238 | const int64_t ch_count = get_assigned_signal_count(); | |
239 | const int64_t unit_size = (ch_count + 7) / 8; | |
240 | logic_mux_data_ = make_shared<Logic>(ch_count); | |
241 | segment_ = make_shared<LogicSegment>(*logic_mux_data_, unit_size, samplerate_); | |
242 | logic_mux_data_->push_segment(segment_); | |
243 | } | |
47747218 | 244 | |
27a3f09b SA |
245 | // Make sure the logic output data is complete and up-to-date |
246 | logic_mux_interrupt_ = false; | |
247 | logic_mux_thread_ = std::thread(&DecodeSignal::logic_mux_proc, this); | |
248 | ||
249 | // Decode the muxed logic data | |
47747218 SA |
250 | decode_interrupt_ = false; |
251 | decode_thread_ = std::thread(&DecodeSignal::decode_proc, this); | |
a8a9222d SA |
252 | |
253 | // Receive notifications when new sample data is available | |
254 | connect_input_notifiers(); | |
946b52e1 SA |
255 | } |
256 | ||
ecd07c20 SA |
257 | QString DecodeSignal::error_message() const |
258 | { | |
47747218 SA |
259 | lock_guard<mutex> lock(output_mutex_); |
260 | return error_message_; | |
ecd07c20 SA |
261 | } |
262 | ||
47747218 | 263 | const vector<data::DecodeChannel> DecodeSignal::get_channels() const |
9f97b357 SA |
264 | { |
265 | return channels_; | |
266 | } | |
267 | ||
132a5c6d SA |
268 | void DecodeSignal::auto_assign_signals() |
269 | { | |
47747218 SA |
270 | bool new_assignment = false; |
271 | ||
132a5c6d SA |
272 | // Try to auto-select channels that don't have signals assigned yet |
273 | for (data::DecodeChannel &ch : channels_) { | |
274 | if (ch.assigned_signal) | |
275 | continue; | |
276 | ||
692f6093 SA |
277 | for (shared_ptr<data::SignalBase> s : session_.signalbases()) { |
278 | const QString ch_name = ch.name.toLower(); | |
279 | const QString s_name = s->name().toLower(); | |
280 | ||
281 | if (s->logic_data() && | |
282 | ((ch_name.contains(s_name)) || (s_name.contains(ch_name)))) { | |
132a5c6d | 283 | ch.assigned_signal = s.get(); |
47747218 SA |
284 | new_assignment = true; |
285 | } | |
692f6093 | 286 | } |
47747218 SA |
287 | } |
288 | ||
289 | if (new_assignment) { | |
290 | logic_mux_data_invalid_ = true; | |
27a3f09b | 291 | commit_decoder_channels(); |
47747218 | 292 | channels_updated(); |
132a5c6d SA |
293 | } |
294 | } | |
295 | ||
9f97b357 SA |
296 | void DecodeSignal::assign_signal(const uint16_t channel_id, const SignalBase *signal) |
297 | { | |
298 | for (data::DecodeChannel &ch : channels_) | |
47747218 | 299 | if (ch.id == channel_id) { |
9f97b357 | 300 | ch.assigned_signal = signal; |
47747218 SA |
301 | logic_mux_data_invalid_ = true; |
302 | } | |
9f97b357 | 303 | |
27a3f09b | 304 | commit_decoder_channels(); |
9f97b357 | 305 | channels_updated(); |
47747218 | 306 | begin_decode(); |
9f97b357 SA |
307 | } |
308 | ||
27a3f09b SA |
309 | int DecodeSignal::get_assigned_signal_count() const |
310 | { | |
311 | // Count all channels that have a signal assigned to them | |
312 | return count_if(channels_.begin(), channels_.end(), | |
313 | [](data::DecodeChannel ch) { return ch.assigned_signal; }); | |
314 | } | |
315 | ||
9f97b357 SA |
316 | void DecodeSignal::set_initial_pin_state(const uint16_t channel_id, const int init_state) |
317 | { | |
318 | for (data::DecodeChannel &ch : channels_) | |
319 | if (ch.id == channel_id) | |
320 | ch.initial_pin_state = init_state; | |
321 | ||
322 | channels_updated(); | |
323 | ||
47747218 | 324 | begin_decode(); |
9f97b357 SA |
325 | } |
326 | ||
ff83d980 SA |
327 | double DecodeSignal::samplerate() const |
328 | { | |
47747218 | 329 | return samplerate_; |
ff83d980 SA |
330 | } |
331 | ||
332 | const pv::util::Timestamp& DecodeSignal::start_time() const | |
333 | { | |
47747218 | 334 | return start_time_; |
ff83d980 SA |
335 | } |
336 | ||
0c5fe73e SA |
337 | int64_t DecodeSignal::get_working_sample_count() const |
338 | { | |
339 | // The working sample count is the highest sample number for | |
340 | // which all used signals have data available, so go through | |
341 | // all channels and use the lowest overall sample count of the | |
342 | // current segment | |
343 | ||
344 | // TODO Currently, we assume only a single segment exists | |
345 | ||
346 | int64_t count = std::numeric_limits<int64_t>::max(); | |
347 | bool no_signals_assigned = true; | |
348 | ||
349 | for (const data::DecodeChannel &ch : channels_) | |
350 | if (ch.assigned_signal) { | |
351 | no_signals_assigned = false; | |
352 | ||
353 | const shared_ptr<Logic> logic_data = ch.assigned_signal->logic_data(); | |
354 | if (!logic_data || logic_data->logic_segments().empty()) | |
355 | return 0; | |
356 | ||
357 | const shared_ptr<LogicSegment> segment = logic_data->logic_segments().front(); | |
358 | count = min(count, (int64_t)segment->get_sample_count()); | |
359 | } | |
360 | ||
361 | return (no_signals_assigned ? 0 : count); | |
362 | } | |
363 | ||
364 | int64_t DecodeSignal::get_decoded_sample_count() const | |
ff83d980 | 365 | { |
47747218 SA |
366 | lock_guard<mutex> decode_lock(output_mutex_); |
367 | return samples_decoded_; | |
ff83d980 SA |
368 | } |
369 | ||
ecd07c20 SA |
370 | vector<Row> DecodeSignal::visible_rows() const |
371 | { | |
47747218 SA |
372 | lock_guard<mutex> lock(output_mutex_); |
373 | ||
374 | vector<Row> rows; | |
375 | ||
376 | for (const shared_ptr<decode::Decoder> &dec : stack_) { | |
377 | assert(dec); | |
378 | if (!dec->shown()) | |
379 | continue; | |
380 | ||
381 | const srd_decoder *const decc = dec->decoder(); | |
382 | assert(dec->decoder()); | |
383 | ||
384 | // Add a row for the decoder if it doesn't have a row list | |
385 | if (!decc->annotation_rows) | |
386 | rows.emplace_back(decc); | |
387 | ||
388 | // Add the decoder rows | |
389 | for (const GSList *l = decc->annotation_rows; l; l = l->next) { | |
390 | const srd_decoder_annotation_row *const ann_row = | |
391 | (srd_decoder_annotation_row *)l->data; | |
392 | assert(ann_row); | |
393 | rows.emplace_back(decc, ann_row); | |
394 | } | |
395 | } | |
396 | ||
397 | return rows; | |
ecd07c20 SA |
398 | } |
399 | ||
400 | void DecodeSignal::get_annotation_subset( | |
401 | vector<pv::data::decode::Annotation> &dest, | |
402 | const decode::Row &row, uint64_t start_sample, | |
403 | uint64_t end_sample) const | |
404 | { | |
47747218 SA |
405 | lock_guard<mutex> lock(output_mutex_); |
406 | ||
407 | const auto iter = rows_.find(row); | |
408 | if (iter != rows_.end()) | |
409 | (*iter).second.get_annotation_subset(dest, | |
410 | start_sample, end_sample); | |
411 | } | |
412 | ||
413 | void DecodeSignal::save_settings(QSettings &settings) const | |
414 | { | |
415 | SignalBase::save_settings(settings); | |
416 | ||
c8e60bdf SA |
417 | settings.setValue("decoders", (int)(stack_.size())); |
418 | ||
8b5ea5a1 | 419 | // Save decoder stack |
c8e60bdf SA |
420 | int decoder_idx = 0; |
421 | for (shared_ptr<decode::Decoder> decoder : stack_) { | |
422 | settings.beginGroup("decoder" + QString::number(decoder_idx++)); | |
423 | ||
424 | settings.setValue("id", decoder->decoder()->id); | |
425 | ||
d3feec23 SA |
426 | // Save decoder options |
427 | const map<string, GVariant*>& options = decoder->options(); | |
428 | ||
429 | settings.setValue("options", (int)options.size()); | |
430 | ||
431 | // Note: decode::Decoder::options() returns only the options | |
432 | // that differ from the default. See binding::Decoder::getter() | |
433 | int i = 0; | |
434 | for (auto option : options) { | |
435 | settings.beginGroup("option" + QString::number(i)); | |
436 | settings.setValue("name", QString::fromStdString(option.first)); | |
437 | GlobalSettings::store_gvariant(settings, option.second); | |
438 | settings.endGroup(); | |
439 | i++; | |
440 | } | |
441 | ||
c8e60bdf SA |
442 | settings.endGroup(); |
443 | } | |
444 | ||
8b5ea5a1 SA |
445 | // Save channel mapping |
446 | settings.setValue("channels", (int)channels_.size()); | |
447 | ||
448 | for (unsigned int channel_id = 0; channel_id < channels_.size(); channel_id++) { | |
449 | auto channel = find_if(channels_.begin(), channels_.end(), | |
450 | [&](data::DecodeChannel ch) { return ch.id == channel_id; }); | |
451 | ||
452 | if (channel == channels_.end()) { | |
453 | qDebug() << "ERROR: Gap in channel index:" << channel_id; | |
454 | continue; | |
455 | } | |
456 | ||
457 | settings.beginGroup("channel" + QString::number(channel_id)); | |
458 | ||
459 | settings.setValue("name", channel->name); // Useful for debugging | |
460 | settings.setValue("initial_pin_state", channel->initial_pin_state); | |
461 | ||
462 | if (channel->assigned_signal) | |
463 | settings.setValue("assigned_signal_name", channel->assigned_signal->name()); | |
464 | ||
465 | settings.endGroup(); | |
466 | } | |
47747218 SA |
467 | } |
468 | ||
469 | void DecodeSignal::restore_settings(QSettings &settings) | |
470 | { | |
471 | SignalBase::restore_settings(settings); | |
472 | ||
8b5ea5a1 | 473 | // Restore decoder stack |
c8e60bdf SA |
474 | GSList *dec_list = g_slist_copy((GSList*)srd_decoder_list()); |
475 | ||
476 | int decoders = settings.value("decoders").toInt(); | |
477 | ||
478 | for (int decoder_idx = 0; decoder_idx < decoders; decoder_idx++) { | |
479 | settings.beginGroup("decoder" + QString::number(decoder_idx)); | |
480 | ||
481 | QString id = settings.value("id").toString(); | |
482 | ||
483 | for (GSList *entry = dec_list; entry; entry = entry->next) { | |
484 | const srd_decoder *dec = (srd_decoder*)entry->data; | |
485 | if (!dec) | |
486 | continue; | |
487 | ||
488 | if (QString::fromUtf8(dec->id) == id) { | |
d3feec23 SA |
489 | shared_ptr<decode::Decoder> decoder = |
490 | make_shared<decode::Decoder>(dec); | |
491 | ||
492 | stack_.push_back(decoder); | |
493 | ||
494 | // Restore decoder options that differ from their default | |
495 | int options = settings.value("options").toInt(); | |
496 | ||
497 | for (int i = 0; i < options; i++) { | |
498 | settings.beginGroup("option" + QString::number(i)); | |
499 | QString name = settings.value("name").toString(); | |
500 | GVariant *value = GlobalSettings::restore_gvariant(settings); | |
501 | decoder->set_option(name.toUtf8(), value); | |
502 | settings.endGroup(); | |
503 | } | |
c8e60bdf SA |
504 | |
505 | // Include the newly created decode channels in the channel lists | |
506 | update_channel_list(); | |
507 | break; | |
508 | } | |
509 | } | |
510 | ||
511 | settings.endGroup(); | |
512 | } | |
513 | ||
8b5ea5a1 SA |
514 | // Restore channel mapping |
515 | unsigned int channels = settings.value("channels").toInt(); | |
516 | ||
517 | const unordered_set< shared_ptr<data::SignalBase> > signalbases = | |
518 | session_.signalbases(); | |
519 | ||
520 | for (unsigned int channel_id = 0; channel_id < channels; channel_id++) { | |
521 | auto channel = find_if(channels_.begin(), channels_.end(), | |
522 | [&](data::DecodeChannel ch) { return ch.id == channel_id; }); | |
523 | ||
524 | if (channel == channels_.end()) { | |
525 | qDebug() << "ERROR: Non-existant channel index:" << channel_id; | |
526 | continue; | |
527 | } | |
528 | ||
529 | settings.beginGroup("channel" + QString::number(channel_id)); | |
530 | ||
531 | QString assigned_signal_name = settings.value("assigned_signal_name").toString(); | |
532 | ||
533 | for (shared_ptr<data::SignalBase> signal : signalbases) | |
534 | if (signal->name() == assigned_signal_name) | |
535 | channel->assigned_signal = signal.get(); | |
536 | ||
537 | channel->initial_pin_state = settings.value("initial_pin_state").toInt(); | |
538 | ||
539 | settings.endGroup(); | |
540 | } | |
541 | ||
542 | begin_decode(); | |
47747218 SA |
543 | } |
544 | ||
9f97b357 SA |
545 | void DecodeSignal::update_channel_list() |
546 | { | |
47747218 | 547 | vector<data::DecodeChannel> prev_channels = channels_; |
9f97b357 SA |
548 | channels_.clear(); |
549 | ||
550 | uint16_t id = 0; | |
551 | ||
552 | // Copy existing entries, create new as needed | |
47747218 | 553 | for (shared_ptr<Decoder> decoder : stack_) { |
9f97b357 SA |
554 | const srd_decoder* srd_d = decoder->decoder(); |
555 | const GSList *l; | |
556 | ||
557 | // Mandatory channels | |
558 | for (l = srd_d->channels; l; l = l->next) { | |
559 | const struct srd_channel *const pdch = (struct srd_channel *)l->data; | |
560 | bool ch_added = false; | |
561 | ||
562 | // Copy but update ID if this channel was in the list before | |
47747218 | 563 | for (data::DecodeChannel &ch : prev_channels) |
9f97b357 SA |
564 | if (ch.pdch_ == pdch) { |
565 | ch.id = id++; | |
566 | channels_.push_back(ch); | |
567 | ch_added = true; | |
568 | break; | |
569 | } | |
570 | ||
571 | if (!ch_added) { | |
572 | // Create new entry without a mapped signal | |
573 | data::DecodeChannel ch = {id++, false, nullptr, | |
574 | QString::fromUtf8(pdch->name), QString::fromUtf8(pdch->desc), | |
575 | SRD_INITIAL_PIN_SAME_AS_SAMPLE0, decoder, pdch}; | |
576 | channels_.push_back(ch); | |
577 | } | |
578 | } | |
579 | ||
580 | // Optional channels | |
581 | for (l = srd_d->opt_channels; l; l = l->next) { | |
582 | const struct srd_channel *const pdch = (struct srd_channel *)l->data; | |
583 | bool ch_added = false; | |
584 | ||
585 | // Copy but update ID if this channel was in the list before | |
47747218 | 586 | for (data::DecodeChannel &ch : prev_channels) |
9f97b357 SA |
587 | if (ch.pdch_ == pdch) { |
588 | ch.id = id++; | |
589 | channels_.push_back(ch); | |
590 | ch_added = true; | |
591 | break; | |
592 | } | |
593 | ||
594 | if (!ch_added) { | |
595 | // Create new entry without a mapped signal | |
596 | data::DecodeChannel ch = {id++, true, nullptr, | |
597 | QString::fromUtf8(pdch->name), QString::fromUtf8(pdch->desc), | |
598 | SRD_INITIAL_PIN_SAME_AS_SAMPLE0, decoder, pdch}; | |
599 | channels_.push_back(ch); | |
600 | } | |
601 | } | |
602 | } | |
603 | ||
47747218 SA |
604 | // Invalidate the logic output data if the channel assignment changed |
605 | if (prev_channels.size() != channels_.size()) { | |
606 | // The number of channels changed, there's definitely a difference | |
607 | logic_mux_data_invalid_ = true; | |
608 | } else { | |
609 | // Same number but assignment may still differ, so compare all channels | |
610 | for (size_t i = 0; i < channels_.size(); i++) { | |
611 | const data::DecodeChannel &p_ch = prev_channels[i]; | |
612 | const data::DecodeChannel &ch = channels_[i]; | |
613 | ||
614 | if ((p_ch.pdch_ != ch.pdch_) || | |
615 | (p_ch.assigned_signal != ch.assigned_signal)) { | |
616 | logic_mux_data_invalid_ = true; | |
617 | break; | |
618 | } | |
619 | } | |
620 | ||
621 | } | |
622 | ||
9f97b357 SA |
623 | channels_updated(); |
624 | } | |
625 | ||
27a3f09b | 626 | void DecodeSignal::commit_decoder_channels() |
ad908057 | 627 | { |
27a3f09b SA |
628 | // Submit channel list to every decoder, containing only the relevant channels |
629 | for (shared_ptr<decode::Decoder> dec : stack_) { | |
630 | vector<data::DecodeChannel*> channel_list; | |
631 | ||
632 | for (data::DecodeChannel &ch : channels_) | |
633 | if (ch.decoder_ == dec) | |
634 | channel_list.push_back(&ch); | |
47747218 | 635 | |
27a3f09b SA |
636 | dec->set_channels(channel_list); |
637 | } | |
47747218 SA |
638 | } |
639 | ||
27a3f09b | 640 | void DecodeSignal::mux_logic_samples(const int64_t start, const int64_t end) |
47747218 | 641 | { |
27a3f09b SA |
642 | // Enforce end to be greater than start |
643 | if (end <= start) | |
644 | return; | |
645 | ||
646 | // Fetch all segments and their data | |
647 | // TODO Currently, we assume only a single segment exists | |
648 | vector<shared_ptr<LogicSegment> > segments; | |
649 | vector<const uint8_t*> signal_data; | |
650 | vector<uint8_t> signal_in_bytepos; | |
651 | vector<uint8_t> signal_in_bitpos; | |
652 | ||
653 | for (data::DecodeChannel &ch : channels_) | |
654 | if (ch.assigned_signal) { | |
655 | const shared_ptr<Logic> logic_data = ch.assigned_signal->logic_data(); | |
656 | const shared_ptr<LogicSegment> segment = logic_data->logic_segments().front(); | |
657 | segments.push_back(segment); | |
658 | signal_data.push_back(segment->get_samples(start, end)); | |
659 | ||
660 | const int bitpos = ch.assigned_signal->logic_bit_index(); | |
661 | signal_in_bytepos.push_back(bitpos / 8); | |
662 | signal_in_bitpos.push_back(bitpos % 8); | |
663 | } | |
664 | ||
665 | // Perform the muxing of signal data into the output data | |
666 | uint8_t* output = new uint8_t[(end - start) * segment_->unit_size()]; | |
667 | unsigned int signal_count = signal_data.size(); | |
668 | ||
669 | for (int64_t sample_cnt = 0; sample_cnt < (end - start); sample_cnt++) { | |
670 | int bitpos = 0; | |
671 | uint8_t bytepos = 0; | |
672 | ||
673 | const int out_sample_pos = sample_cnt * segment_->unit_size(); | |
674 | for (unsigned int i = 0; i < segment_->unit_size(); i++) | |
675 | output[out_sample_pos + i] = 0; | |
47747218 | 676 | |
27a3f09b SA |
677 | for (unsigned int i = 0; i < signal_count; i++) { |
678 | const int in_sample_pos = sample_cnt * segments[i]->unit_size(); | |
679 | const uint8_t in_sample = 1 & | |
680 | ((signal_data[i][in_sample_pos + signal_in_bytepos[i]]) >> (signal_in_bitpos[i])); | |
47747218 | 681 | |
27a3f09b SA |
682 | const uint8_t out_sample = output[out_sample_pos + bytepos]; |
683 | ||
684 | output[out_sample_pos + bytepos] = out_sample | (in_sample << bitpos); | |
685 | ||
686 | bitpos++; | |
687 | if (bitpos > 7) { | |
688 | bitpos = 0; | |
689 | bytepos++; | |
690 | } | |
691 | } | |
47747218 SA |
692 | } |
693 | ||
27a3f09b SA |
694 | segment_->append_payload(output, (end - start) * segment_->unit_size()); |
695 | delete[] output; | |
696 | ||
697 | for (const uint8_t* data : signal_data) | |
698 | delete[] data; | |
699 | } | |
700 | ||
701 | void DecodeSignal::logic_mux_proc() | |
702 | { | |
703 | do { | |
27a3f09b SA |
704 | const uint64_t input_sample_count = get_working_sample_count(); |
705 | const uint64_t output_sample_count = segment_->get_sample_count(); | |
706 | ||
707 | const uint64_t samples_to_process = | |
708 | (input_sample_count > output_sample_count) ? | |
709 | (input_sample_count - output_sample_count) : 0; | |
710 | ||
711 | // Process the samples if necessary... | |
712 | if (samples_to_process > 0) { | |
713 | const uint64_t unit_size = segment_->unit_size(); | |
714 | const uint64_t chunk_sample_count = DecodeChunkLength / unit_size; | |
715 | ||
716 | uint64_t processed_samples = 0; | |
717 | do { | |
718 | const uint64_t start_sample = output_sample_count + processed_samples; | |
719 | const uint64_t sample_count = | |
720 | min(samples_to_process - processed_samples, chunk_sample_count); | |
721 | ||
722 | mux_logic_samples(start_sample, start_sample + sample_count); | |
723 | processed_samples += sample_count; | |
724 | ||
725 | // ...and process the newly muxed logic data | |
726 | decode_input_cond_.notify_one(); | |
727 | } while (processed_samples < samples_to_process); | |
728 | } | |
729 | ||
1ec191ed | 730 | if (samples_to_process == 0) { |
27a3f09b SA |
731 | // Wait for more input |
732 | unique_lock<mutex> logic_mux_lock(logic_mux_mutex_); | |
733 | logic_mux_cond_.wait(logic_mux_lock); | |
734 | } | |
1ec191ed | 735 | } while (!logic_mux_interrupt_); |
27a3f09b SA |
736 | |
737 | // No more input data and session is stopped, let the decode thread | |
738 | // process any pending data, terminate and release the global SRD mutex | |
739 | // in order to let other decoders run | |
740 | decode_input_cond_.notify_one(); | |
47747218 SA |
741 | } |
742 | ||
a3ebd556 SA |
743 | void DecodeSignal::query_input_metadata() |
744 | { | |
745 | // Update the samplerate and start time because we cannot start | |
746 | // the libsrd session without the current samplerate | |
747 | ||
748 | // TODO Currently we assume all channels have the same sample rate | |
749 | // and start time | |
750 | bool samplerate_valid = false; | |
751 | ||
752 | auto any_channel = find_if(channels_.begin(), channels_.end(), | |
753 | [](data::DecodeChannel ch) { return ch.assigned_signal; }); | |
754 | ||
755 | shared_ptr<Logic> logic_data = | |
756 | any_channel->assigned_signal->logic_data(); | |
757 | ||
758 | do { | |
759 | if (!logic_data->logic_segments().empty()) { | |
760 | shared_ptr<LogicSegment> first_segment = | |
761 | any_channel->assigned_signal->logic_data()->logic_segments().front(); | |
762 | start_time_ = first_segment->start_time(); | |
763 | samplerate_ = first_segment->samplerate(); | |
764 | if (samplerate_ > 0) | |
765 | samplerate_valid = true; | |
766 | } | |
767 | ||
1ec191ed SA |
768 | if (!samplerate_valid) { |
769 | // Wait until input data is available or an interrupt was requested | |
770 | unique_lock<mutex> input_wait_lock(input_mutex_); | |
771 | decode_input_cond_.wait(input_wait_lock); | |
772 | } | |
a3ebd556 SA |
773 | } while (!samplerate_valid && !decode_interrupt_); |
774 | } | |
775 | ||
47747218 | 776 | void DecodeSignal::decode_data( |
e91883bb | 777 | const int64_t abs_start_samplenum, const int64_t sample_count) |
47747218 | 778 | { |
27a3f09b SA |
779 | const int64_t unit_size = segment_->unit_size(); |
780 | const int64_t chunk_sample_count = DecodeChunkLength / unit_size; | |
47747218 SA |
781 | |
782 | for (int64_t i = abs_start_samplenum; | |
783 | !decode_interrupt_ && (i < (abs_start_samplenum + sample_count)); | |
784 | i += chunk_sample_count) { | |
785 | ||
786 | const int64_t chunk_end = min(i + chunk_sample_count, | |
787 | abs_start_samplenum + sample_count); | |
788 | ||
789 | const uint8_t* chunk = segment_->get_samples(i, chunk_end); | |
790 | ||
e91883bb | 791 | if (srd_session_send(srd_session_, i, chunk_end, chunk, |
47747218 SA |
792 | (chunk_end - i) * unit_size, unit_size) != SRD_OK) { |
793 | error_message_ = tr("Decoder reported an error"); | |
794 | delete[] chunk; | |
795 | break; | |
796 | } | |
a3ebd556 | 797 | |
47747218 SA |
798 | delete[] chunk; |
799 | ||
800 | { | |
801 | lock_guard<mutex> lock(output_mutex_); | |
802 | samples_decoded_ = chunk_end; | |
803 | } | |
1b56c646 SA |
804 | |
805 | // Notify the frontend that we processed some data and | |
806 | // possibly have new annotations as well | |
807 | new_annotations(); | |
47747218 SA |
808 | } |
809 | } | |
810 | ||
811 | void DecodeSignal::decode_proc() | |
812 | { | |
a3ebd556 SA |
813 | query_input_metadata(); |
814 | ||
815 | if (decode_interrupt_) | |
816 | return; | |
817 | ||
e91883bb | 818 | start_srd_session(); |
47747218 | 819 | |
27a3f09b SA |
820 | uint64_t sample_count; |
821 | uint64_t abs_start_samplenum = 0; | |
47747218 | 822 | do { |
27a3f09b SA |
823 | // Keep processing new samples until we exhaust the input data |
824 | do { | |
e91883bb SA |
825 | // Prevent any other decode threads from accessing libsigrokdecode |
826 | lock_guard<mutex> srd_lock(global_srd_mutex_); | |
827 | ||
27a3f09b SA |
828 | { |
829 | lock_guard<mutex> input_lock(input_mutex_); | |
830 | sample_count = segment_->get_sample_count() - abs_start_samplenum; | |
831 | } | |
832 | ||
833 | if (sample_count > 0) { | |
e91883bb | 834 | decode_data(abs_start_samplenum, sample_count); |
27a3f09b SA |
835 | abs_start_samplenum += sample_count; |
836 | } | |
1b56c646 SA |
837 | } while (error_message_.isEmpty() && (sample_count > 0) && !decode_interrupt_); |
838 | ||
839 | if (error_message_.isEmpty() && !decode_interrupt_) { | |
840 | if (sample_count == 0) | |
841 | decode_finished(); | |
27a3f09b | 842 | |
a3ebd556 | 843 | // Wait for new input data or an interrupt was requested |
27a3f09b SA |
844 | unique_lock<mutex> input_wait_lock(input_mutex_); |
845 | decode_input_cond_.wait(input_wait_lock); | |
846 | } | |
847 | } while (error_message_.isEmpty() && !decode_interrupt_); | |
e91883bb SA |
848 | } |
849 | ||
850 | void DecodeSignal::start_srd_session() | |
851 | { | |
a3ebd556 SA |
852 | if (srd_session_) |
853 | stop_srd_session(); | |
e91883bb | 854 | |
a3ebd556 SA |
855 | // Create the session |
856 | srd_session_new(&srd_session_); | |
857 | assert(srd_session_); | |
47747218 | 858 | |
a3ebd556 SA |
859 | // Create the decoders |
860 | srd_decoder_inst *prev_di = nullptr; | |
861 | for (const shared_ptr<decode::Decoder> &dec : stack_) { | |
862 | srd_decoder_inst *const di = dec->create_decoder_inst(srd_session_); | |
e91883bb | 863 | |
a3ebd556 SA |
864 | if (!di) { |
865 | error_message_ = tr("Failed to create decoder instance"); | |
866 | srd_session_destroy(srd_session_); | |
867 | return; | |
868 | } | |
e91883bb | 869 | |
a3ebd556 SA |
870 | if (prev_di) |
871 | srd_inst_stack(srd_session_, prev_di, di); | |
e91883bb | 872 | |
a3ebd556 | 873 | prev_di = di; |
e91883bb | 874 | } |
a3ebd556 SA |
875 | |
876 | // Start the session | |
877 | srd_session_metadata_set(srd_session_, SRD_CONF_SAMPLERATE, | |
878 | g_variant_new_uint64(samplerate_)); | |
879 | ||
880 | srd_pd_output_callback_add(srd_session_, SRD_OUTPUT_ANN, | |
881 | DecodeSignal::annotation_callback, this); | |
882 | ||
883 | srd_session_start(srd_session_); | |
e91883bb | 884 | } |
47747218 | 885 | |
e91883bb SA |
886 | void DecodeSignal::stop_srd_session() |
887 | { | |
888 | if (srd_session_) { | |
889 | // Destroy the session | |
890 | srd_session_destroy(srd_session_); | |
891 | srd_session_ = nullptr; | |
892 | } | |
47747218 SA |
893 | } |
894 | ||
a8a9222d SA |
895 | void DecodeSignal::connect_input_notifiers() |
896 | { | |
897 | // Disconnect the notification slot from the previous set of signals | |
1b56c646 | 898 | disconnect(this, SLOT(on_data_cleared())); |
a8a9222d SA |
899 | disconnect(this, SLOT(on_data_received())); |
900 | ||
901 | // Connect the currently used signals to our slot | |
902 | for (data::DecodeChannel &ch : channels_) { | |
903 | if (!ch.assigned_signal) | |
904 | continue; | |
905 | ||
1b56c646 SA |
906 | const data::SignalBase *signal = ch.assigned_signal; |
907 | connect(signal, SIGNAL(samples_cleared()), | |
908 | this, SLOT(on_data_cleared())); | |
909 | connect(signal, SIGNAL(samples_added(QObject*, uint64_t, uint64_t)), | |
a8a9222d SA |
910 | this, SLOT(on_data_received())); |
911 | } | |
912 | } | |
913 | ||
47747218 SA |
914 | void DecodeSignal::annotation_callback(srd_proto_data *pdata, void *decode_signal) |
915 | { | |
916 | assert(pdata); | |
917 | assert(decoder); | |
918 | ||
919 | DecodeSignal *const ds = (DecodeSignal*)decode_signal; | |
920 | assert(ds); | |
921 | ||
922 | lock_guard<mutex> lock(ds->output_mutex_); | |
923 | ||
924 | const decode::Annotation a(pdata); | |
925 | ||
926 | // Find the row | |
927 | assert(pdata->pdo); | |
928 | assert(pdata->pdo->di); | |
929 | const srd_decoder *const decc = pdata->pdo->di->decoder; | |
930 | assert(decc); | |
931 | ||
932 | auto row_iter = ds->rows_.end(); | |
933 | ||
934 | // Try looking up the sub-row of this class | |
935 | const auto r = ds->class_rows_.find(make_pair(decc, a.format())); | |
936 | if (r != ds->class_rows_.end()) | |
937 | row_iter = ds->rows_.find((*r).second); | |
938 | else { | |
939 | // Failing that, use the decoder as a key | |
940 | row_iter = ds->rows_.find(Row(decc)); | |
941 | } | |
942 | ||
943 | assert(row_iter != ds->rows_.end()); | |
944 | if (row_iter == ds->rows_.end()) { | |
945 | qDebug() << "Unexpected annotation: decoder = " << decc << | |
946 | ", format = " << a.format(); | |
947 | assert(false); | |
948 | return; | |
949 | } | |
950 | ||
951 | // Add the annotation | |
952 | (*row_iter).second.push_annotation(a); | |
47747218 SA |
953 | } |
954 | ||
955 | void DecodeSignal::on_capture_state_changed(int state) | |
956 | { | |
957 | // If a new acquisition was started, we need to start decoding from scratch | |
958 | if (state == Session::Running) | |
959 | begin_decode(); | |
960 | } | |
961 | ||
1b56c646 SA |
962 | void DecodeSignal::on_data_cleared() |
963 | { | |
964 | reset_decode(); | |
965 | } | |
966 | ||
47747218 SA |
967 | void DecodeSignal::on_data_received() |
968 | { | |
1b56c646 SA |
969 | if (!logic_mux_thread_.joinable()) |
970 | begin_decode(); | |
971 | else | |
972 | logic_mux_cond_.notify_one(); | |
47747218 SA |
973 | } |
974 | ||
ad908057 SA |
975 | } // namespace data |
976 | } // namespace pv |