*/
#include "analog.hpp"
+#include "analogsegment.hpp"
+#include "decode/row.hpp"
#include "logic.hpp"
+#include "logicsegment.hpp"
#include "signalbase.hpp"
#include "signaldata.hpp"
-#include "decode/row.hpp"
#include <pv/binding/decoder.hpp>
+#include <pv/session.hpp>
using std::dynamic_pointer_cast;
+using std::make_shared;
using std::shared_ptr;
-
-using sigrok::Channel;
+using std::tie;
+using std::unique_lock;
namespace pv {
namespace data {
-const int SignalBase::ColourBGAlpha = 8*256/100;
+const int SignalBase::ColourBGAlpha = 8 * 256 / 100;
+const uint64_t SignalBase::ConversionBlockSize = 4096;
SignalBase::SignalBase(shared_ptr<sigrok::Channel> channel, ChannelType channel_type) :
channel_(channel),
- channel_type_(channel_type)
+ channel_type_(channel_type),
+ conversion_type_(NoConversion)
{
if (channel_)
internal_name_ = QString::fromStdString(channel_->name());
}
+SignalBase::~SignalBase()
+{
+ stop_conversion();
+}
+
shared_ptr<sigrok::Channel> SignalBase::channel() const
{
return channel_;
unsigned int SignalBase::index() const
{
- return (channel_) ? channel_->index() : (unsigned int)-1;
+ return (channel_) ? channel_->index() : 0;
+}
+
+unsigned int SignalBase::logic_bit_index() const
+{
+ if (channel_type_ == LogicChannel)
+ return channel_->index();
+ else
+ return 0;
}
QColor SignalBase::colour() const
void SignalBase::set_data(shared_ptr<pv::data::SignalData> data)
{
+ if (data_) {
+ disconnect(data.get(), SIGNAL(samples_cleared()),
+ this, SLOT(on_samples_cleared()));
+ disconnect(data.get(), SIGNAL(samples_added(QObject*, uint64_t, uint64_t)),
+ this, SLOT(on_samples_added(QObject*, uint64_t, uint64_t)));
+ }
+
data_ = data;
+
+ if (data_) {
+ connect(data.get(), SIGNAL(samples_cleared()),
+ this, SLOT(on_samples_cleared()));
+ connect(data.get(), SIGNAL(samples_added(QObject*, uint64_t, uint64_t)),
+ this, SLOT(on_samples_added(QObject*, uint64_t, uint64_t)));
+ }
}
shared_ptr<data::Analog> SignalBase::analog_data() const
{
+ shared_ptr<Analog> result = nullptr;
+
if (channel_type_ == AnalogChannel)
- return dynamic_pointer_cast<data::Analog>(data_);
- else
- return nullptr;
+ result = dynamic_pointer_cast<Analog>(data_);
+
+ return result;
}
shared_ptr<data::Logic> SignalBase::logic_data() const
{
+ shared_ptr<Logic> result = nullptr;
+
if (channel_type_ == LogicChannel)
- return dynamic_pointer_cast<data::Logic>(data_);
- else
- return nullptr;
-}
+ result = dynamic_pointer_cast<Logic>(data_);
-#ifdef ENABLE_DECODE
-bool SignalBase::is_decode_signal() const
-{
- return (decoder_stack_ != nullptr);
+ if (((conversion_type_ == A2LConversionByTreshold) ||
+ (conversion_type_ == A2LConversionBySchmittTrigger)))
+ result = dynamic_pointer_cast<Logic>(converted_data_);
+
+ return result;
}
-shared_ptr<pv::data::DecoderStack> SignalBase::decoder_stack() const
+void SignalBase::set_conversion_type(ConversionType t)
{
- return decoder_stack_;
+ if (conversion_type_ != NoConversion) {
+ stop_conversion();
+
+ // Discard converted data
+ converted_data_.reset();
+ }
+
+ conversion_type_ = t;
+
+ start_conversion();
+
+ conversion_type_changed(t);
}
-void SignalBase::set_decoder_stack(shared_ptr<pv::data::DecoderStack>
- decoder_stack)
+#ifdef ENABLE_DECODE
+bool SignalBase::is_decode_signal() const
{
- decoder_stack_ = decoder_stack;
+ return (channel_type_ == DecodeChannel);
}
#endif
settings.setValue("name", name());
settings.setValue("enabled", enabled());
settings.setValue("colour", colour());
+ settings.setValue("conversion_type", (int)conversion_type_);
}
void SignalBase::restore_settings(QSettings &settings)
set_name(settings.value("name").toString());
set_enabled(settings.value("enabled").toBool());
set_colour(settings.value("colour").value<QColor>());
+ set_conversion_type((ConversionType)settings.value("conversion_type").toInt());
}
+uint8_t SignalBase::convert_a2l_threshold(float threshold, float value)
+{
+ return (value >= threshold) ? 1 : 0;
+}
+
+uint8_t SignalBase::convert_a2l_schmitt_trigger(float lo_thr, float hi_thr,
+ float value, uint8_t &state)
+{
+ if (value < lo_thr)
+ state = 0;
+ else if (value > hi_thr)
+ state = 1;
+
+ return state;
+}
+
+void SignalBase::conversion_thread_proc(QObject* segment)
+{
+ // TODO Support for multiple segments is missing
+
+ uint64_t start_sample, end_sample;
+ start_sample = end_sample = 0;
+
+ do {
+ if ((channel_type_ == AnalogChannel) &&
+ ((conversion_type_ == A2LConversionByTreshold) ||
+ (conversion_type_ == A2LConversionBySchmittTrigger))) {
+
+ AnalogSegment *asegment = qobject_cast<AnalogSegment*>(segment);
+
+ // Create the logic data container if needed
+ shared_ptr<Logic> logic_data;
+ if (!converted_data_) {
+ logic_data = make_shared<Logic>(1); // Contains only one channel
+ converted_data_ = logic_data;
+ } else
+ logic_data = dynamic_pointer_cast<Logic>(converted_data_);
+
+ // Create the initial logic data segment if needed
+ if (logic_data->segments().size() == 0) {
+ shared_ptr<LogicSegment> lsegment =
+ make_shared<LogicSegment>(*logic_data.get(), 1, asegment->samplerate());
+ logic_data->push_segment(lsegment);
+ }
+
+ LogicSegment *lsegment = dynamic_cast<LogicSegment*>(logic_data->segments().front().get());
+
+ start_sample = lsegment->get_sample_count();
+ end_sample = asegment->get_sample_count();
+
+ if (end_sample > start_sample) {
+ float min_v, max_v;
+ tie(min_v, max_v) = asegment->get_min_max();
+
+ vector<uint8_t> lsamples;
+ lsamples.reserve(ConversionBlockSize);
+
+ uint64_t i = start_sample;
+
+ if (conversion_type_ == A2LConversionByTreshold) {
+ const float threshold = (min_v + max_v) * 0.5; // middle between min and max
+
+ // Convert as many sample blocks as we can
+ while ((end_sample - i) > ConversionBlockSize) {
+ const float* asamples = asegment->get_samples(i, i + ConversionBlockSize);
+ for (uint32_t j = 0; j < ConversionBlockSize; j++)
+ lsamples.push_back(convert_a2l_threshold(threshold, asamples[j]));
+ lsegment->append_payload(lsamples.data(), lsamples.size());
+ samples_added(lsegment, i, i + ConversionBlockSize);
+ i += ConversionBlockSize;
+ lsamples.clear();
+ delete[] asamples;
+ }
+
+ // Convert remaining samples
+ const float* asamples = asegment->get_samples(i, end_sample);
+ for (uint32_t j = 0; j < (end_sample - i); j++)
+ lsamples.push_back(convert_a2l_threshold(threshold, asamples[j]));
+ lsegment->append_payload(lsamples.data(), lsamples.size());
+ samples_added(lsegment, i, end_sample);
+ delete[] asamples;
+ }
+
+ if (conversion_type_ == A2LConversionBySchmittTrigger) {
+ const float amplitude = max_v - min_v;
+ const float lo_thr = min_v + (amplitude * 0.1); // 10% above min
+ const float hi_thr = max_v - (amplitude * 0.1); // 10% below max
+ uint8_t state = 0; // TODO Use value of logic sample n-1 instead of 0
+
+ // Convert as many sample blocks as we can
+ while ((end_sample - i) > ConversionBlockSize) {
+ const float* asamples = asegment->get_samples(i, i + ConversionBlockSize);
+ for (uint32_t j = 0; j < ConversionBlockSize; j++)
+ lsamples.push_back(convert_a2l_schmitt_trigger(lo_thr, hi_thr, asamples[j], state));
+ lsegment->append_payload(lsamples.data(), lsamples.size());
+ samples_added(lsegment, i, i + ConversionBlockSize);
+ i += ConversionBlockSize;
+ lsamples.clear();
+ delete[] asamples;
+ }
+
+ // Convert remaining samples
+ const float* asamples = asegment->get_samples(i, end_sample);
+ for (uint32_t j = 0; j < (end_sample - i); j++)
+ lsamples.push_back(convert_a2l_schmitt_trigger(lo_thr, hi_thr, asamples[j], state));
+ lsegment->append_payload(lsamples.data(), lsamples.size());
+ samples_added(lsegment, i, end_sample);
+ delete[] asamples;
+ }
+
+ // If acquisition is ongoing, start-/endsample may have changed
+ end_sample = asegment->get_sample_count();
+ }
+ }
+
+ if (!conversion_interrupt_ && (start_sample == end_sample)) {
+ unique_lock<mutex> input_lock(conversion_input_mutex_);
+ conversion_input_cond_.wait(input_lock);
+ }
+ } while (!conversion_interrupt_);
+}
+
+void SignalBase::start_conversion()
+{
+ stop_conversion();
+
+ if ((channel_type_ == AnalogChannel) &&
+ ((conversion_type_ == A2LConversionByTreshold) ||
+ (conversion_type_ == A2LConversionBySchmittTrigger))) {
+
+ shared_ptr<Analog> analog_data = dynamic_pointer_cast<Analog>(data_);
+
+ if (analog_data->analog_segments().size() > 0) {
+ // TODO Support for multiple segments is missing
+ AnalogSegment *asegment = analog_data->analog_segments().front().get();
+
+ conversion_interrupt_ = false;
+ conversion_thread_ = std::thread(
+ &SignalBase::conversion_thread_proc, this, asegment);
+ }
+ }
+}
+
+void SignalBase::stop_conversion()
+{
+ // Stop conversion so we can restart it from the beginning
+ conversion_interrupt_ = true;
+ conversion_input_cond_.notify_one();
+ if (conversion_thread_.joinable())
+ conversion_thread_.join();
+}
+
+void SignalBase::on_samples_cleared()
+{
+ if (converted_data_)
+ converted_data_->clear();
+
+ samples_cleared();
+}
+
+void SignalBase::on_samples_added(QObject* segment, uint64_t start_sample,
+ uint64_t end_sample)
+{
+ if (conversion_type_ != NoConversion) {
+ if (conversion_thread_.joinable()) {
+ // Notify the conversion thread since it's running
+ conversion_input_cond_.notify_one();
+ } else {
+ // Start the conversion thread
+ start_conversion();
+ }
+ }
+
+ samples_added(segment, start_sample, end_sample);
+}
+
+void SignalBase::on_capture_state_changed(int state)
+{
+ if (state == Session::Running) {
+ if (conversion_type_ != NoConversion) {
+ // Restart conversion
+ stop_conversion();
+ start_conversion();
+ }
+ }
+}
} // namespace data
} // namespace pv
projects / pulseview.git / blobdiff