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)
129 disconnect(data.get(), SIGNAL(samples_cleared()),
130 this, SLOT(on_samples_cleared()));
131 disconnect(data.get(), SIGNAL(samples_added(QObject*, uint64_t, uint64_t)),
132 this, SLOT(on_samples_added(QObject*, uint64_t, uint64_t)));
138 connect(data.get(), SIGNAL(samples_cleared()),
139 this, SLOT(on_samples_cleared()));
140 connect(data.get(), SIGNAL(samples_added(QObject*, uint64_t, uint64_t)),
141 this, SLOT(on_samples_added(QObject*, uint64_t, uint64_t)));
145 shared_ptr<data::Analog> SignalBase::analog_data() const
147 shared_ptr<Analog> result = nullptr;
149 if (channel_type_ == AnalogChannel)
150 result = dynamic_pointer_cast<Analog>(data_);
155 shared_ptr<data::Logic> SignalBase::logic_data() const
157 shared_ptr<Logic> result = nullptr;
159 if (channel_type_ == LogicChannel)
160 result = dynamic_pointer_cast<Logic>(data_);
162 if (((conversion_type_ == A2LConversionByTreshold) ||
163 (conversion_type_ == A2LConversionBySchmittTrigger)))
164 result = dynamic_pointer_cast<Logic>(converted_data_);
169 void SignalBase::set_conversion_type(ConversionType t)
171 if (conversion_type_ != NoConversion) {
172 // Wait for the currently ongoing conversion to finish
173 if (conversion_thread_.joinable())
174 conversion_thread_.join();
176 // Discard converted data
177 converted_data_.reset();
180 conversion_type_ = t;
182 if ((channel_type_ == AnalogChannel) &&
183 ((conversion_type_ == A2LConversionByTreshold) ||
184 (conversion_type_ == A2LConversionBySchmittTrigger))) {
186 shared_ptr<Analog> analog_data = dynamic_pointer_cast<Analog>(data_);
188 if (analog_data->analog_segments().size() > 0) {
189 AnalogSegment *asegment = analog_data->analog_segments().front().get();
191 // Begin conversion of existing sample data
192 // TODO Support for multiple segments is missing
193 on_samples_added(asegment, 0, 0);
197 conversion_type_changed(t);
201 bool SignalBase::is_decode_signal() const
203 // DecodeSignal class overrides this method, all others shall return false
207 shared_ptr<pv::data::DecoderStack> SignalBase::decoder_stack() const
209 // DecodeSignal class overrides this method, all others shall return nothing
214 void SignalBase::save_settings(QSettings &settings) const
216 settings.setValue("name", name());
217 settings.setValue("enabled", enabled());
218 settings.setValue("colour", colour());
219 settings.setValue("conversion_type", (int)conversion_type_);
222 void SignalBase::restore_settings(QSettings &settings)
224 set_name(settings.value("name").toString());
225 set_enabled(settings.value("enabled").toBool());
226 set_colour(settings.value("colour").value<QColor>());
227 set_conversion_type((ConversionType)settings.value("conversion_type").toInt());
230 uint8_t SignalBase::convert_a2l_threshold(float threshold, float value)
232 return (value >= threshold) ? 1 : 0;
235 uint8_t SignalBase::convert_a2l_schmitt_trigger(float lo_thr, float hi_thr,
236 float value, uint8_t &state)
240 else if (value > hi_thr)
246 void SignalBase::conversion_thread_proc(QObject* segment, uint64_t start_sample,
249 const uint64_t block_size = 4096;
251 // TODO Support for multiple segments is missing
253 if ((channel_type_ == AnalogChannel) &&
254 ((conversion_type_ == A2LConversionByTreshold) ||
255 (conversion_type_ == A2LConversionBySchmittTrigger))) {
257 AnalogSegment *asegment = qobject_cast<AnalogSegment*>(segment);
259 // Create the logic data container if needed
260 shared_ptr<Logic> logic_data;
261 if (!converted_data_) {
262 logic_data = make_shared<Logic>(1); // Contains only one channel
263 converted_data_ = logic_data;
265 logic_data = dynamic_pointer_cast<Logic>(converted_data_);
267 // Create the initial logic data segment if needed
268 if (logic_data->segments().size() == 0) {
269 shared_ptr<LogicSegment> lsegment =
270 make_shared<LogicSegment>(*logic_data.get(), 1, asegment->samplerate());
271 logic_data->push_segment(lsegment);
274 LogicSegment *lsegment = dynamic_cast<LogicSegment*>(logic_data->segments().front().get());
276 // start_sample=end_sample=0 means we need to figure out the unprocessed range
277 if ((start_sample == 0) && (end_sample == 0)) {
278 start_sample = lsegment->get_sample_count();
279 end_sample = asegment->get_sample_count();
282 if (start_sample == end_sample)
283 return; // Nothing to do
286 tie(min_v, max_v) = asegment->get_min_max();
288 vector<uint8_t> lsamples;
289 lsamples.reserve(block_size);
291 uint64_t i = start_sample;
293 if (conversion_type_ == A2LConversionByTreshold) {
294 const float threshold = (min_v + max_v) * 0.5; // middle between min and max
296 // Convert as many sample blocks as we can
297 while ((end_sample - i) > block_size) {
298 const float* asamples = asegment->get_samples(i, i + block_size);
299 for (uint32_t j = 0; j < block_size; j++)
300 lsamples.push_back(convert_a2l_threshold(threshold, asamples[j]));
301 lsegment->append_payload(lsamples.data(), lsamples.size());
307 // Convert remaining samples
308 const float* asamples = asegment->get_samples(i, end_sample);
309 for (uint32_t j = 0; j < (end_sample - i); j++)
310 lsamples.push_back(convert_a2l_threshold(threshold, asamples[j]));
311 lsegment->append_payload(lsamples.data(), lsamples.size());
314 samples_added(lsegment, start_sample, end_sample);
317 if (conversion_type_ == A2LConversionBySchmittTrigger) {
318 const float amplitude = max_v - min_v;
319 const float lo_thr = min_v + (amplitude * 0.1); // 10% above min
320 const float hi_thr = max_v - (amplitude * 0.1); // 10% below max
321 uint8_t state = 0; // TODO Use value of logic sample n-1 instead of 0
323 // Convert as many sample blocks as we can
324 while ((end_sample - i) > block_size) {
325 const float* asamples = asegment->get_samples(i, i + block_size);
326 for (uint32_t j = 0; j < block_size; j++)
327 lsamples.push_back(convert_a2l_schmitt_trigger(lo_thr, hi_thr, asamples[j], state));
328 lsegment->append_payload(lsamples.data(), lsamples.size());
334 // Convert remaining samples
335 const float* asamples = asegment->get_samples(i, end_sample);
336 for (uint32_t j = 0; j < (end_sample - i); j++)
337 lsamples.push_back(convert_a2l_schmitt_trigger(lo_thr, hi_thr, asamples[j], state));
338 lsegment->append_payload(lsamples.data(), lsamples.size());
341 samples_added(lsegment, start_sample, end_sample);
346 void SignalBase::on_samples_cleared()
349 converted_data_->clear();
354 void SignalBase::on_samples_added(QObject* segment, uint64_t start_sample,
357 if (conversion_type_ != NoConversion) {
359 // Wait for the currently ongoing conversion to finish
360 if (conversion_thread_.joinable())
361 conversion_thread_.join();
363 conversion_thread_ = std::thread(
364 &SignalBase::conversion_thread_proc, this,
365 segment, start_sample, end_sample);
368 samples_added(segment, start_sample, end_sample);
371 void SignalBase::on_capture_state_changed(int state)
374 if (state == Session::Stopped) {
375 // Make sure that all data is converted
377 if ((channel_type_ == AnalogChannel) &&
378 ((conversion_type_ == A2LConversionByTreshold) ||
379 (conversion_type_ == A2LConversionBySchmittTrigger))) {
381 shared_ptr<Analog> analog_data = dynamic_pointer_cast<Analog>(data_);
383 if (analog_data->analog_segments().size() > 0) {
384 // TODO Support for multiple segments is missing
385 AnalogSegment *asegment = analog_data->analog_segments().front().get();
387 if (conversion_thread_.joinable())
388 conversion_thread_.join();
390 conversion_thread_ = std::thread(
391 &SignalBase::conversion_thread_proc, this, asegment, 0, 0);