2 * This file is part of the PulseView project.
4 * Copyright (C) 2012 Joel Holdsworth <joel@airwebreathe.org.uk>
5 * Copyright (C) 2016 Soeren Apel <soeren@apelpie.net>
7 * This program is free software; you can redistribute it and/or modify
8 * it under the terms of the GNU General Public License as published by
9 * the Free Software Foundation; either version 2 of the License, or
10 * (at your option) any later version.
12 * This program is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 * GNU General Public License for more details.
17 * You should have received a copy of the GNU General Public License
18 * along with this program; if not, see <http://www.gnu.org/licenses/>.
22 #include "analogsegment.hpp"
23 #include "decode/row.hpp"
25 #include "logicsegment.hpp"
26 #include "signalbase.hpp"
27 #include "signaldata.hpp"
29 #include <pv/binding/decoder.hpp>
30 #include <pv/session.hpp>
32 using std::dynamic_pointer_cast;
33 using std::make_shared;
34 using std::shared_ptr;
40 const int SignalBase::ColourBGAlpha = 8 * 256 / 100;
42 SignalBase::SignalBase(shared_ptr<sigrok::Channel> channel, ChannelType channel_type) :
44 channel_type_(channel_type),
45 conversion_type_(NoConversion)
48 internal_name_ = QString::fromStdString(channel_->name());
51 SignalBase::~SignalBase()
53 // Wait for the currently ongoing conversion to finish
54 if (conversion_thread_.joinable())
55 conversion_thread_.join();
58 shared_ptr<sigrok::Channel> SignalBase::channel() const
63 QString SignalBase::name() const
65 return (channel_) ? QString::fromStdString(channel_->name()) : name_;
68 QString SignalBase::internal_name() const
70 return internal_name_;
73 void SignalBase::set_name(QString name)
76 channel_->set_name(name.toUtf8().constData());
83 bool SignalBase::enabled() const
85 return (channel_) ? channel_->enabled() : true;
88 void SignalBase::set_enabled(bool value)
91 channel_->set_enabled(value);
92 enabled_changed(value);
96 SignalBase::ChannelType SignalBase::type() const
101 unsigned int SignalBase::index() const
103 return (channel_) ? channel_->index() : (unsigned int)-1;
106 QColor SignalBase::colour() const
111 void SignalBase::set_colour(QColor colour)
116 bgcolour_.setAlpha(ColourBGAlpha);
118 colour_changed(colour);
121 QColor SignalBase::bgcolour() const
126 void SignalBase::set_data(shared_ptr<pv::data::SignalData> data)
128 if (data_ && channel_type_ == AnalogChannel) {
129 shared_ptr<Analog> analog_data = dynamic_pointer_cast<Analog>(data_);
131 disconnect(analog_data.get(), SIGNAL(samples_cleared()),
132 this, SLOT(on_samples_cleared()));
133 disconnect(analog_data.get(), SIGNAL(samples_added(QObject*, uint64_t, uint64_t)),
134 this, SLOT(on_samples_added(QObject*, uint64_t, uint64_t)));
139 if (data_ && channel_type_ == AnalogChannel) {
140 shared_ptr<Analog> analog_data = dynamic_pointer_cast<Analog>(data_);
142 connect(analog_data.get(), SIGNAL(samples_cleared()),
143 this, SLOT(on_samples_cleared()));
144 connect(analog_data.get(), SIGNAL(samples_added(QObject*, uint64_t, uint64_t)),
145 this, SLOT(on_samples_added(QObject*, uint64_t, uint64_t)));
149 shared_ptr<data::Analog> SignalBase::analog_data() const
151 shared_ptr<Analog> result = nullptr;
153 if (channel_type_ == AnalogChannel)
154 result = dynamic_pointer_cast<Analog>(data_);
159 shared_ptr<data::Logic> SignalBase::logic_data() const
161 shared_ptr<Logic> result = nullptr;
163 if (channel_type_ == LogicChannel)
164 result = dynamic_pointer_cast<Logic>(data_);
166 if (((conversion_type_ == A2LConversionByTreshold) ||
167 (conversion_type_ == A2LConversionBySchmittTrigger)))
168 result = dynamic_pointer_cast<Logic>(converted_data_);
173 void SignalBase::set_conversion_type(ConversionType t)
175 if (conversion_type_ != NoConversion) {
176 // Wait for the currently ongoing conversion to finish
177 if (conversion_thread_.joinable())
178 conversion_thread_.join();
180 // Discard converted data
181 converted_data_.reset();
184 conversion_type_ = t;
186 if ((channel_type_ == AnalogChannel) &&
187 ((conversion_type_ == A2LConversionByTreshold) ||
188 (conversion_type_ == A2LConversionBySchmittTrigger))) {
190 shared_ptr<Analog> analog_data = dynamic_pointer_cast<Analog>(data_);
192 if (analog_data->analog_segments().size() > 0) {
193 AnalogSegment *asegment = analog_data->analog_segments().front().get();
195 // Begin conversion of existing sample data
196 // TODO Support for multiple segments is missing
197 on_samples_added(asegment, 0, 0);
201 conversion_type_changed(t);
205 bool SignalBase::is_decode_signal() const
207 return (decoder_stack_ != nullptr);
210 shared_ptr<pv::data::DecoderStack> SignalBase::decoder_stack() const
212 return decoder_stack_;
215 void SignalBase::set_decoder_stack(shared_ptr<pv::data::DecoderStack>
218 decoder_stack_ = decoder_stack;
222 void SignalBase::save_settings(QSettings &settings) const
224 settings.setValue("name", name());
225 settings.setValue("enabled", enabled());
226 settings.setValue("colour", colour());
227 settings.setValue("conversion_type", (int)conversion_type_);
230 void SignalBase::restore_settings(QSettings &settings)
232 set_name(settings.value("name").toString());
233 set_enabled(settings.value("enabled").toBool());
234 set_colour(settings.value("colour").value<QColor>());
235 set_conversion_type((ConversionType)settings.value("conversion_type").toInt());
238 uint8_t SignalBase::convert_a2l_threshold(float threshold, float value)
240 return (value >= threshold) ? 1 : 0;
243 uint8_t SignalBase::convert_a2l_schmitt_trigger(float lo_thr, float hi_thr,
244 float value, uint8_t &state)
248 else if (value > hi_thr)
254 void SignalBase::conversion_thread_proc(QObject* segment, uint64_t start_sample,
257 const uint64_t block_size = 4096;
259 // TODO Support for multiple segments is missing
261 if ((channel_type_ == AnalogChannel) &&
262 ((conversion_type_ == A2LConversionByTreshold) ||
263 (conversion_type_ == A2LConversionBySchmittTrigger))) {
265 AnalogSegment *asegment = qobject_cast<AnalogSegment*>(segment);
267 // Create the logic data container if needed
268 shared_ptr<Logic> logic_data;
269 if (!converted_data_) {
270 logic_data = make_shared<Logic>(1); // Contains only one channel
271 converted_data_ = logic_data;
273 logic_data = dynamic_pointer_cast<Logic>(converted_data_);
275 // Create the initial logic data segment if needed
276 if (logic_data->segments().size() == 0) {
277 shared_ptr<LogicSegment> lsegment =
278 make_shared<LogicSegment>(*logic_data.get(), 1, asegment->samplerate());
279 logic_data->push_segment(lsegment);
282 LogicSegment *lsegment = dynamic_cast<LogicSegment*>(logic_data->segments().front().get());
284 // start_sample=end_sample=0 means we need to figure out the unprocessed range
285 if ((start_sample == 0) && (end_sample == 0)) {
286 start_sample = lsegment->get_sample_count();
287 end_sample = asegment->get_sample_count();
290 if (start_sample == end_sample)
291 return; // Nothing to do
294 tie(min_v, max_v) = asegment->get_min_max();
296 vector<uint8_t> lsamples;
297 lsamples.reserve(block_size);
299 uint64_t i = start_sample;
301 if (conversion_type_ == A2LConversionByTreshold) {
302 const float threshold = (min_v + max_v) * 0.5; // middle between min and max
304 // Convert as many sample blocks as we can
305 while ((end_sample - i) > block_size) {
306 const float* asamples = asegment->get_samples(i, i + block_size);
307 for (uint32_t j = 0; j < block_size; j++)
308 lsamples.push_back(convert_a2l_threshold(threshold, asamples[j]));
309 lsegment->append_payload(lsamples.data(), lsamples.size());
315 // Convert remaining samples
316 const float* asamples = asegment->get_samples(i, end_sample);
317 for (uint32_t j = 0; j < (end_sample - i); j++)
318 lsamples.push_back(convert_a2l_threshold(threshold, asamples[j]));
319 lsegment->append_payload(lsamples.data(), lsamples.size());
322 samples_added(lsegment, start_sample, end_sample);
325 if (conversion_type_ == A2LConversionBySchmittTrigger) {
326 const float amplitude = max_v - min_v;
327 const float lo_thr = min_v + (amplitude * 0.1); // 10% above min
328 const float hi_thr = max_v - (amplitude * 0.1); // 10% below max
329 uint8_t state = 0; // TODO Use value of logic sample n-1 instead of 0
331 // Convert as many sample blocks as we can
332 while ((end_sample - i) > block_size) {
333 const float* asamples = asegment->get_samples(i, i + block_size);
334 for (uint32_t j = 0; j < block_size; j++)
335 lsamples.push_back(convert_a2l_schmitt_trigger(lo_thr, hi_thr, asamples[j], state));
336 lsegment->append_payload(lsamples.data(), lsamples.size());
342 // Convert remaining samples
343 const float* asamples = asegment->get_samples(i, end_sample);
344 for (uint32_t j = 0; j < (end_sample - i); j++)
345 lsamples.push_back(convert_a2l_schmitt_trigger(lo_thr, hi_thr, asamples[j], state));
346 lsegment->append_payload(lsamples.data(), lsamples.size());
349 samples_added(lsegment, start_sample, end_sample);
354 void SignalBase::on_samples_cleared()
357 converted_data_->clear();
362 void SignalBase::on_samples_added(QObject* segment, uint64_t start_sample,
369 if (conversion_type_ != NoConversion) {
371 // Wait for the currently ongoing conversion to finish
372 if (conversion_thread_.joinable())
373 conversion_thread_.join();
375 conversion_thread_ = std::thread(
376 &SignalBase::conversion_thread_proc, this,
377 segment, start_sample, end_sample);
380 samples_added(segment, start_sample, end_sample);
383 void SignalBase::on_capture_state_changed(int state)
386 if (state == Session::Stopped) {
387 // Make sure that all data is converted
389 if ((channel_type_ == AnalogChannel) &&
390 ((conversion_type_ == A2LConversionByTreshold) ||
391 (conversion_type_ == A2LConversionBySchmittTrigger))) {
393 shared_ptr<Analog> analog_data = dynamic_pointer_cast<Analog>(data_);
395 if (analog_data->analog_segments().size() > 0) {
396 // TODO Support for multiple segments is missing
397 AnalogSegment *asegment = analog_data->analog_segments().front().get();
399 if (conversion_thread_.joinable())
400 conversion_thread_.join();
402 conversion_thread_ = std::thread(
403 &SignalBase::conversion_thread_proc, this, asegment, 0, 0);