#include <pv/binding/decoder.hpp>
#include <pv/data/decode/decoder.hpp>
#include <pv/data/decode/row.hpp>
+#include <pv/globalsettings.hpp>
#include <pv/session.hpp>
using std::lock_guard;
const double DecodeSignal::DecodeMargin = 1.0;
const double DecodeSignal::DecodeThreshold = 0.2;
-const int64_t DecodeSignal::DecodeChunkLength = 10 * 1024 * 1024;
-const unsigned int DecodeSignal::DecodeNotifyPeriod = 1024;
-
-mutex DecodeSignal::global_srd_mutex_;
+const int64_t DecodeSignal::DecodeChunkLength = 256 * 1024;
DecodeSignal::DecodeSignal(pv::Session &session) :
logic_mux_data_invalid_(false),
start_time_(0),
samplerate_(0),
- annotation_count_(0),
samples_decoded_(0),
frame_complete_(false)
{
DecodeSignal::~DecodeSignal()
{
- if (decode_thread_.joinable()) {
- decode_interrupt_ = true;
- decode_input_cond_.notify_one();
- decode_thread_.join();
- }
-
- if (logic_mux_thread_.joinable()) {
- logic_mux_interrupt_ = true;
- logic_mux_cond_.notify_one();
- logic_mux_thread_.join();
- }
-
- stop_srd_session();
+ reset_decode();
}
const vector< shared_ptr<Decoder> >& DecodeSignal::decoder_stack() const
return stack_;
}
-void DecodeSignal::stack_decoder(srd_decoder *decoder)
+void DecodeSignal::stack_decoder(const srd_decoder *decoder)
{
assert(decoder);
stack_.push_back(make_shared<decode::Decoder>(decoder));
void DecodeSignal::reset_decode()
{
+ if (decode_thread_.joinable()) {
+ decode_interrupt_ = true;
+ decode_input_cond_.notify_one();
+ decode_thread_.join();
+ }
+
+ if (logic_mux_thread_.joinable()) {
+ logic_mux_interrupt_ = true;
+ logic_mux_cond_.notify_one();
+ logic_mux_thread_.join();
+ }
+
stop_srd_session();
- annotation_count_ = 0;
frame_complete_ = false;
samples_decoded_ = 0;
error_message_ = QString();
+
rows_.clear();
class_rows_.clear();
+
+ logic_mux_data_.reset();
+ logic_mux_data_invalid_ = true;
}
void DecodeSignal::begin_decode()
return;
}
+ // Make sure that all assigned channels still provide logic data
+ // (can happen when a converted signal was assigned but the
+ // conversion removed in the meanwhile)
+ for (data::DecodeChannel &ch : channels_)
+ if (ch.assigned_signal && !(ch.assigned_signal->logic_data() != nullptr))
+ ch.assigned_signal = nullptr;
+
// Check that all decoders have the required channels
for (const shared_ptr<decode::Decoder> &dec : stack_)
if (!dec->have_required_channels()) {
}
}
- // TODO Currently we assume all channels have the same sample rate
- auto any_channel = find_if(channels_.begin(), channels_.end(),
- [](data::DecodeChannel ch) { return ch.assigned_signal; });
- shared_ptr<LogicSegment> first_segment =
- any_channel->assigned_signal->logic_data()->logic_segments().front();
- samplerate_ = first_segment->samplerate();
-
// Free the logic data and its segment(s) if it needs to be updated
if (logic_mux_data_invalid_)
logic_mux_data_.reset();
logic_mux_data_->push_segment(segment_);
}
- // Update the samplerate and start time
- start_time_ = segment_->start_time();
- samplerate_ = segment_->samplerate();
- if (samplerate_ == 0.0)
- samplerate_ = 1.0;
-
// Make sure the logic output data is complete and up-to-date
logic_mux_interrupt_ = false;
logic_mux_thread_ = std::thread(&DecodeSignal::logic_mux_proc, this);
if (ch.assigned_signal)
continue;
- for (shared_ptr<data::SignalBase> s : session_.signalbases())
- if (s->logic_data() && (ch.name.toLower().contains(s->name().toLower()))) {
+ for (shared_ptr<data::SignalBase> s : session_.signalbases()) {
+ const QString ch_name = ch.name.toLower();
+ const QString s_name = s->name().toLower();
+
+ if (s->logic_data() &&
+ ((ch_name.contains(s_name)) || (s_name.contains(ch_name)))) {
ch.assigned_signal = s.get();
new_assignment = true;
}
+ }
}
if (new_assignment) {
{
SignalBase::save_settings(settings);
- // TODO Save decoder stack, channel mapping and decoder options
+ settings.setValue("decoders", (int)(stack_.size()));
+
+ // Save decoder stack
+ int decoder_idx = 0;
+ for (shared_ptr<decode::Decoder> decoder : stack_) {
+ settings.beginGroup("decoder" + QString::number(decoder_idx++));
+
+ settings.setValue("id", decoder->decoder()->id);
+
+ // Save decoder options
+ const map<string, GVariant*>& options = decoder->options();
+
+ settings.setValue("options", (int)options.size());
+
+ // Note: decode::Decoder::options() returns only the options
+ // that differ from the default. See binding::Decoder::getter()
+ int i = 0;
+ for (auto option : options) {
+ settings.beginGroup("option" + QString::number(i));
+ settings.setValue("name", QString::fromStdString(option.first));
+ GlobalSettings::store_gvariant(settings, option.second);
+ settings.endGroup();
+ i++;
+ }
+
+ settings.endGroup();
+ }
+
+ // Save channel mapping
+ settings.setValue("channels", (int)channels_.size());
+
+ for (unsigned int channel_id = 0; channel_id < channels_.size(); channel_id++) {
+ auto channel = find_if(channels_.begin(), channels_.end(),
+ [&](data::DecodeChannel ch) { return ch.id == channel_id; });
+
+ if (channel == channels_.end()) {
+ qDebug() << "ERROR: Gap in channel index:" << channel_id;
+ continue;
+ }
+
+ settings.beginGroup("channel" + QString::number(channel_id));
+
+ settings.setValue("name", channel->name); // Useful for debugging
+ settings.setValue("initial_pin_state", channel->initial_pin_state);
+
+ if (channel->assigned_signal)
+ settings.setValue("assigned_signal_name", channel->assigned_signal->name());
+
+ settings.endGroup();
+ }
}
void DecodeSignal::restore_settings(QSettings &settings)
{
SignalBase::restore_settings(settings);
- // TODO Restore decoder stack, channel mapping and decoder options
-}
+ // Restore decoder stack
+ GSList *dec_list = g_slist_copy((GSList*)srd_decoder_list());
-uint64_t DecodeSignal::inc_annotation_count()
-{
- return (annotation_count_++);
+ int decoders = settings.value("decoders").toInt();
+
+ for (int decoder_idx = 0; decoder_idx < decoders; decoder_idx++) {
+ settings.beginGroup("decoder" + QString::number(decoder_idx));
+
+ QString id = settings.value("id").toString();
+
+ for (GSList *entry = dec_list; entry; entry = entry->next) {
+ const srd_decoder *dec = (srd_decoder*)entry->data;
+ if (!dec)
+ continue;
+
+ if (QString::fromUtf8(dec->id) == id) {
+ shared_ptr<decode::Decoder> decoder =
+ make_shared<decode::Decoder>(dec);
+
+ stack_.push_back(decoder);
+
+ // Restore decoder options that differ from their default
+ int options = settings.value("options").toInt();
+
+ for (int i = 0; i < options; i++) {
+ settings.beginGroup("option" + QString::number(i));
+ QString name = settings.value("name").toString();
+ GVariant *value = GlobalSettings::restore_gvariant(settings);
+ decoder->set_option(name.toUtf8(), value);
+ settings.endGroup();
+ }
+
+ // Include the newly created decode channels in the channel lists
+ update_channel_list();
+ break;
+ }
+ }
+
+ settings.endGroup();
+ }
+
+ // Restore channel mapping
+ unsigned int channels = settings.value("channels").toInt();
+
+ const unordered_set< shared_ptr<data::SignalBase> > signalbases =
+ session_.signalbases();
+
+ for (unsigned int channel_id = 0; channel_id < channels; channel_id++) {
+ auto channel = find_if(channels_.begin(), channels_.end(),
+ [&](data::DecodeChannel ch) { return ch.id == channel_id; });
+
+ if (channel == channels_.end()) {
+ qDebug() << "ERROR: Non-existant channel index:" << channel_id;
+ continue;
+ }
+
+ settings.beginGroup("channel" + QString::number(channel_id));
+
+ QString assigned_signal_name = settings.value("assigned_signal_name").toString();
+
+ for (shared_ptr<data::SignalBase> signal : signalbases)
+ if (signal->name() == assigned_signal_name)
+ channel->assigned_signal = signal.get();
+
+ channel->initial_pin_state = settings.value("initial_pin_state").toInt();
+
+ settings.endGroup();
+ }
+
+ begin_decode();
}
void DecodeSignal::update_channel_list()
} while (processed_samples < samples_to_process);
}
- if (session_.get_capture_state() != Session::Stopped) {
+ if (samples_to_process == 0) {
// Wait for more input
unique_lock<mutex> logic_mux_lock(logic_mux_mutex_);
logic_mux_cond_.wait(logic_mux_lock);
}
- } while ((session_.get_capture_state() != Session::Stopped) && !logic_mux_interrupt_);
+ } while (!logic_mux_interrupt_);
// No more input data and session is stopped, let the decode thread
// process any pending data, terminate and release the global SRD mutex
decode_input_cond_.notify_one();
}
+void DecodeSignal::query_input_metadata()
+{
+ // Update the samplerate and start time because we cannot start
+ // the libsrd session without the current samplerate
+
+ // TODO Currently we assume all channels have the same sample rate
+ // and start time
+ bool samplerate_valid = false;
+
+ auto any_channel = find_if(channels_.begin(), channels_.end(),
+ [](data::DecodeChannel ch) { return ch.assigned_signal; });
+
+ shared_ptr<Logic> logic_data =
+ any_channel->assigned_signal->logic_data();
+
+ do {
+ if (!logic_data->logic_segments().empty()) {
+ shared_ptr<LogicSegment> first_segment =
+ any_channel->assigned_signal->logic_data()->logic_segments().front();
+ start_time_ = first_segment->start_time();
+ samplerate_ = first_segment->samplerate();
+ if (samplerate_ > 0)
+ samplerate_valid = true;
+ }
+
+ if (!samplerate_valid) {
+ // Wait until input data is available or an interrupt was requested
+ unique_lock<mutex> input_wait_lock(input_mutex_);
+ decode_input_cond_.wait(input_wait_lock);
+ }
+ } while (!samplerate_valid && !decode_interrupt_);
+}
+
void DecodeSignal::decode_data(
const int64_t abs_start_samplenum, const int64_t sample_count)
{
delete[] chunk;
break;
}
+
delete[] chunk;
{
lock_guard<mutex> lock(output_mutex_);
samples_decoded_ = chunk_end;
}
+
+ // Notify the frontend that we processed some data and
+ // possibly have new annotations as well
+ new_annotations();
}
}
void DecodeSignal::decode_proc()
{
+ query_input_metadata();
+
+ if (decode_interrupt_)
+ return;
+
start_srd_session();
uint64_t sample_count;
do {
// Keep processing new samples until we exhaust the input data
do {
- // Prevent any other decode threads from accessing libsigrokdecode
- lock_guard<mutex> srd_lock(global_srd_mutex_);
-
- {
- lock_guard<mutex> input_lock(input_mutex_);
- sample_count = segment_->get_sample_count() - abs_start_samplenum;
- }
+ lock_guard<mutex> input_lock(input_mutex_);
+ sample_count = segment_->get_sample_count() - abs_start_samplenum;
if (sample_count > 0) {
decode_data(abs_start_samplenum, sample_count);
abs_start_samplenum += sample_count;
}
- } while (error_message_.isEmpty() && (sample_count > 0));
+ } while (error_message_.isEmpty() && (sample_count > 0) && !decode_interrupt_);
- if (error_message_.isEmpty()) {
- // Make sure all annotations are known to the frontend
- new_annotations();
+ if (error_message_.isEmpty() && !decode_interrupt_) {
+ if (sample_count == 0)
+ decode_finished();
- // Wait for new input data or an interrupt request
+ // Wait for new input data or an interrupt was requested
unique_lock<mutex> input_wait_lock(input_mutex_);
decode_input_cond_.wait(input_wait_lock);
}
void DecodeSignal::start_srd_session()
{
- if (!srd_session_) {
- // Create the session
- srd_session_new(&srd_session_);
- assert(srd_session_);
+ if (srd_session_)
+ stop_srd_session();
- // Create the decoders
- srd_decoder_inst *prev_di = nullptr;
- for (const shared_ptr<decode::Decoder> &dec : stack_) {
- srd_decoder_inst *const di = dec->create_decoder_inst(srd_session_);
+ // Create the session
+ srd_session_new(&srd_session_);
+ assert(srd_session_);
- if (!di) {
- error_message_ = tr("Failed to create decoder instance");
- srd_session_destroy(srd_session_);
- return;
- }
-
- if (prev_di)
- srd_inst_stack(srd_session_, prev_di, di);
+ // Create the decoders
+ srd_decoder_inst *prev_di = nullptr;
+ for (const shared_ptr<decode::Decoder> &dec : stack_) {
+ srd_decoder_inst *const di = dec->create_decoder_inst(srd_session_);
- prev_di = di;
+ if (!di) {
+ error_message_ = tr("Failed to create decoder instance");
+ srd_session_destroy(srd_session_);
+ return;
}
- // Start the session
- srd_session_metadata_set(srd_session_, SRD_CONF_SAMPLERATE,
- g_variant_new_uint64(samplerate_));
+ if (prev_di)
+ srd_inst_stack(srd_session_, prev_di, di);
- srd_pd_output_callback_add(srd_session_, SRD_OUTPUT_ANN,
- DecodeSignal::annotation_callback, this);
-
- srd_session_start(srd_session_);
+ prev_di = di;
}
+
+ // Start the session
+ srd_session_metadata_set(srd_session_, SRD_CONF_SAMPLERATE,
+ g_variant_new_uint64(samplerate_));
+
+ srd_pd_output_callback_add(srd_session_, SRD_OUTPUT_ANN,
+ DecodeSignal::annotation_callback, this);
+
+ srd_session_start(srd_session_);
}
void DecodeSignal::stop_srd_session()
void DecodeSignal::connect_input_notifiers()
{
// Disconnect the notification slot from the previous set of signals
+ disconnect(this, SLOT(on_data_cleared()));
disconnect(this, SLOT(on_data_received()));
// Connect the currently used signals to our slot
if (!ch.assigned_signal)
continue;
- shared_ptr<Logic> logic_data = ch.assigned_signal->logic_data();
- connect(logic_data.get(), SIGNAL(samples_added(QObject*, uint64_t, uint64_t)),
+ const data::SignalBase *signal = ch.assigned_signal;
+ connect(signal, SIGNAL(samples_cleared()),
+ this, SLOT(on_data_cleared()));
+ connect(signal, SIGNAL(samples_added(QObject*, uint64_t, uint64_t)),
this, SLOT(on_data_received()));
}
}
// Add the annotation
(*row_iter).second.push_annotation(a);
-
- // Notify the frontend every DecodeNotifyPeriod annotations
- if (ds->inc_annotation_count() % DecodeNotifyPeriod == 0)
- ds->new_annotations();
}
void DecodeSignal::on_capture_state_changed(int state)
begin_decode();
}
+void DecodeSignal::on_data_cleared()
+{
+ reset_decode();
+}
+
void DecodeSignal::on_data_received()
{
- logic_mux_cond_.notify_one();
+ if (!logic_mux_thread_.joinable())
+ begin_decode();
+ else
+ logic_mux_cond_.notify_one();
}
} // namespace data
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