* along with this program; if not, see <http://www.gnu.org/licenses/>.
*/
+#include <limits>
+
+#include <QDebug>
+
#include "logic.hpp"
#include "logicsegment.hpp"
#include "decodesignal.hpp"
#include <pv/binding/decoder.hpp>
#include <pv/data/decode/decoder.hpp>
#include <pv/data/decode/row.hpp>
-#include <pv/data/decoderstack.hpp>
+#include <pv/globalsettings.hpp>
#include <pv/session.hpp>
+using std::lock_guard;
+using std::make_pair;
using std::make_shared;
+using std::min;
+using std::out_of_range;
using std::shared_ptr;
+using std::unique_lock;
+using pv::data::decode::Annotation;
using pv::data::decode::Decoder;
using pv::data::decode::Row;
namespace pv {
namespace data {
-DecodeSignal::DecodeSignal(shared_ptr<pv::data::DecoderStack> decoder_stack) :
- SignalBase(nullptr, SignalBase::DecodeChannel),
- decoder_stack_(decoder_stack)
-{
- set_name(QString::fromUtf8(decoder_stack_->stack().front()->decoder()->name));
+const double DecodeSignal::DecodeMargin = 1.0;
+const double DecodeSignal::DecodeThreshold = 0.2;
+const int64_t DecodeSignal::DecodeChunkLength = 256 * 1024;
- update_channel_list();
- connect(decoder_stack_.get(), SIGNAL(new_annotations()),
- this, SLOT(on_new_annotations()));
+DecodeSignal::DecodeSignal(pv::Session &session) :
+ SignalBase(nullptr, SignalBase::DecodeChannel),
+ session_(session),
+ srd_session_(nullptr),
+ logic_mux_data_invalid_(false),
+ stack_config_changed_(true),
+ current_segment_id_(0)
+{
+ connect(&session_, SIGNAL(capture_state_changed(int)),
+ this, SLOT(on_capture_state_changed(int)));
}
DecodeSignal::~DecodeSignal()
{
+ reset_decode(true);
}
-bool DecodeSignal::is_decode_signal() const
+const vector< shared_ptr<Decoder> >& DecodeSignal::decoder_stack() const
{
- return true;
+ return stack_;
}
-shared_ptr<pv::data::DecoderStack> DecodeSignal::decoder_stack() const
+void DecodeSignal::stack_decoder(const srd_decoder *decoder)
{
- return decoder_stack_;
-}
+ assert(decoder);
+ const shared_ptr<Decoder> dec = make_shared<decode::Decoder>(decoder);
-const list< shared_ptr<Decoder> >& DecodeSignal::decoder_stack_list() const
-{
- return decoder_stack_->stack();
-}
+ stack_.push_back(dec);
-void DecodeSignal::stack_decoder(srd_decoder *decoder)
-{
- assert(decoder);
- assert(decoder_stack);
- decoder_stack_->push(make_shared<data::decode::Decoder>(decoder));
+ // Set name if this decoder is the first in the list
+ if (stack_.size() == 1)
+ set_name(QString::fromUtf8(decoder->name));
+
+ // Include the newly created decode channels in the channel lists
update_channel_list();
- decoder_stack_->begin_decode();
+
+ stack_config_changed_ = true;
+ auto_assign_signals(dec);
+ commit_decoder_channels();
+ begin_decode();
}
void DecodeSignal::remove_decoder(int index)
{
- decoder_stack_->remove(index);
+ assert(index >= 0);
+ assert(index < (int)stack_.size());
+
+ // Find the decoder in the stack
+ auto iter = stack_.begin();
+ for (int i = 0; i < index; i++, iter++)
+ assert(iter != stack_.end());
+
+ // Delete the element
+ stack_.erase(iter);
+
+ // Update channels and decoded data
+ stack_config_changed_ = true;
update_channel_list();
- decoder_stack_->begin_decode();
+ begin_decode();
}
bool DecodeSignal::toggle_decoder_visibility(int index)
{
- const list< shared_ptr<Decoder> > stack(decoder_stack_->stack());
-
- auto iter = stack.cbegin();
+ auto iter = stack_.cbegin();
for (int i = 0; i < index; i++, iter++)
- assert(iter != stack.end());
+ assert(iter != stack_.end());
shared_ptr<Decoder> dec = *iter;
return state;
}
+void DecodeSignal::reset_decode(bool shutting_down)
+{
+ if (stack_config_changed_ || shutting_down)
+ stop_srd_session();
+ else
+ terminate_srd_session();
+
+ 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();
+ }
+
+ class_rows_.clear();
+ current_segment_id_ = 0;
+ segments_.clear();
+
+ logic_mux_data_.reset();
+ logic_mux_data_invalid_ = true;
+
+ if (!error_message_.isEmpty()) {
+ error_message_ = QString();
+ // TODO Emulate noquote()
+ qDebug().nospace() << name() << ": Error cleared";
+ }
+
+ decode_reset();
+}
+
+void DecodeSignal::begin_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();
+ }
+
+ reset_decode();
+
+ if (stack_.size() == 0) {
+ set_error_message(tr("No decoders"));
+ return;
+ }
+
+ assert(channels_.size() > 0);
+
+ if (get_assigned_signal_count() == 0) {
+ set_error_message(tr("There are no channels assigned to this decoder"));
+ 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()) {
+ set_error_message(tr("One or more required channels "
+ "have not been specified"));
+ return;
+ }
+
+ // Map out all the annotation classes
+ for (const shared_ptr<decode::Decoder> &dec : stack_) {
+ assert(dec);
+ const srd_decoder *const decc = dec->decoder();
+ assert(dec->decoder());
+
+ for (const GSList *l = decc->annotation_rows; l; l = l->next) {
+ const srd_decoder_annotation_row *const ann_row =
+ (srd_decoder_annotation_row *)l->data;
+ assert(ann_row);
+
+ const Row row(decc, ann_row);
+
+ for (const GSList *ll = ann_row->ann_classes;
+ ll; ll = ll->next)
+ class_rows_[make_pair(decc,
+ GPOINTER_TO_INT(ll->data))] = row;
+ }
+ }
+
+ // Free the logic data and its segment(s) if it needs to be updated
+ if (logic_mux_data_invalid_)
+ logic_mux_data_.reset();
+
+ if (!logic_mux_data_) {
+ const uint32_t ch_count = get_assigned_signal_count();
+ logic_mux_unit_size_ = (ch_count + 7) / 8;
+ logic_mux_data_ = make_shared<Logic>(ch_count);
+ }
+
+ // Receive notifications when new sample data is available
+ connect_input_notifiers();
+
+ if (get_input_segment_count() == 0) {
+ set_error_message(tr("No input data"));
+ return;
+ }
+
+ // 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);
+
+ // Decode the muxed logic data
+ decode_interrupt_ = false;
+ decode_thread_ = std::thread(&DecodeSignal::decode_proc, this);
+}
+
QString DecodeSignal::error_message() const
{
- return decoder_stack_->error_message();
+ lock_guard<mutex> lock(output_mutex_);
+ return error_message_;
}
-const list<data::DecodeChannel> DecodeSignal::get_channels() const
+const vector<data::DecodeChannel> DecodeSignal::get_channels() const
{
return channels_;
}
+void DecodeSignal::auto_assign_signals(const shared_ptr<Decoder> dec)
+{
+ bool new_assignment = false;
+
+ // Try to auto-select channels that don't have signals assigned yet
+ for (data::DecodeChannel &ch : channels_) {
+ // If a decoder is given, auto-assign only its channels
+ if (dec && (ch.decoder_ != dec))
+ continue;
+
+ if (ch.assigned_signal)
+ continue;
+
+ 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) {
+ logic_mux_data_invalid_ = true;
+ stack_config_changed_ = true;
+ commit_decoder_channels();
+ channels_updated();
+ }
+}
+
void DecodeSignal::assign_signal(const uint16_t channel_id, const SignalBase *signal)
{
for (data::DecodeChannel &ch : channels_)
- if (ch.id == channel_id)
+ if (ch.id == channel_id) {
ch.assigned_signal = signal;
+ logic_mux_data_invalid_ = true;
+ }
+ stack_config_changed_ = true;
+ commit_decoder_channels();
channels_updated();
+ begin_decode();
+}
- decoder_stack_->begin_decode();
+int DecodeSignal::get_assigned_signal_count() const
+{
+ // Count all channels that have a signal assigned to them
+ return count_if(channels_.begin(), channels_.end(),
+ [](data::DecodeChannel ch) { return ch.assigned_signal; });
}
void DecodeSignal::set_initial_pin_state(const uint16_t channel_id, const int init_state)
if (ch.id == channel_id)
ch.initial_pin_state = init_state;
+ stack_config_changed_ = true;
channels_updated();
+ begin_decode();
+}
+
+double DecodeSignal::samplerate() const
+{
+ double result = 0;
+
+ // TODO For now, we simply return the first samplerate that we have
+ if (segments_.size() > 0)
+ result = segments_.front().samplerate;
+
+ return result;
+}
+
+const pv::util::Timestamp DecodeSignal::start_time() const
+{
+ pv::util::Timestamp result;
+
+ // TODO For now, we simply return the first start time that we have
+ if (segments_.size() > 0)
+ result = segments_.front().start_time;
- decoder_stack_->begin_decode();
+ return result;
+}
+
+int64_t DecodeSignal::get_working_sample_count(uint32_t segment_id) const
+{
+ // The working sample count is the highest sample number for
+ // which all used signals have data available, so go through all
+ // channels and use the lowest overall sample count of the segment
+
+ int64_t count = std::numeric_limits<int64_t>::max();
+ bool no_signals_assigned = true;
+
+ for (const data::DecodeChannel &ch : channels_)
+ if (ch.assigned_signal) {
+ no_signals_assigned = false;
+
+ const shared_ptr<Logic> logic_data = ch.assigned_signal->logic_data();
+ if (!logic_data || logic_data->logic_segments().empty())
+ return 0;
+
+ try {
+ const shared_ptr<LogicSegment> segment = logic_data->logic_segments().at(segment_id);
+ count = min(count, (int64_t)segment->get_sample_count());
+ } catch (out_of_range&) {
+ return 0;
+ }
+ }
+
+ return (no_signals_assigned ? 0 : count);
+}
+
+int64_t DecodeSignal::get_decoded_sample_count(uint32_t segment_id) const
+{
+ lock_guard<mutex> decode_lock(output_mutex_);
+
+ int64_t result = 0;
+
+ try {
+ const DecodeSegment *segment = &(segments_.at(segment_id));
+ result = segment->samples_decoded;
+ } catch (out_of_range&) {
+ // Do nothing
+ }
+
+ return result;
}
vector<Row> DecodeSignal::visible_rows() const
{
- return decoder_stack_->get_visible_rows();
+ lock_guard<mutex> lock(output_mutex_);
+
+ vector<Row> rows;
+
+ for (const shared_ptr<decode::Decoder> &dec : stack_) {
+ assert(dec);
+ if (!dec->shown())
+ continue;
+
+ const srd_decoder *const decc = dec->decoder();
+ assert(dec->decoder());
+
+ // Add a row for the decoder if it doesn't have a row list
+ if (!decc->annotation_rows)
+ rows.emplace_back(decc);
+
+ // Add the decoder rows
+ for (const GSList *l = decc->annotation_rows; l; l = l->next) {
+ const srd_decoder_annotation_row *const ann_row =
+ (srd_decoder_annotation_row *)l->data;
+ assert(ann_row);
+ rows.emplace_back(decc, ann_row);
+ }
+ }
+
+ return rows;
}
void DecodeSignal::get_annotation_subset(
vector<pv::data::decode::Annotation> &dest,
- const decode::Row &row, uint64_t start_sample,
+ const decode::Row &row, uint32_t segment_id, uint64_t start_sample,
uint64_t end_sample) const
{
- return decoder_stack_->get_annotation_subset(dest, row,
- start_sample, end_sample);
+ lock_guard<mutex> lock(output_mutex_);
+
+ try {
+ const DecodeSegment *segment = &(segments_.at(segment_id));
+ const map<const decode::Row, decode::RowData> *rows =
+ &(segment->annotation_rows);
+
+ const auto iter = rows->find(row);
+ if (iter != rows->end())
+ (*iter).second.get_annotation_subset(dest,
+ start_sample, end_sample);
+ } catch (out_of_range&) {
+ // Do nothing
+ }
+}
+
+void DecodeSignal::save_settings(QSettings &settings) const
+{
+ SignalBase::save_settings(settings);
+
+ 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);
+
+ // Restore decoder stack
+ GSList *dec_list = g_slist_copy((GSList*)srd_decoder_list());
+
+ 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();
+ channels_updated();
+ }
+
+ // 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();
+ }
+
+ // Update the internal structures
+ stack_config_changed_ = true;
+ update_channel_list();
+ commit_decoder_channels();
+
+ begin_decode();
+}
+
+void DecodeSignal::set_error_message(QString msg)
+{
+ error_message_ = msg;
+ // TODO Emulate noquote()
+ qDebug().nospace() << name() << ": " << msg;
+}
+
+uint32_t DecodeSignal::get_input_segment_count() const
+{
+ uint64_t count = std::numeric_limits<uint64_t>::max();
+ bool no_signals_assigned = true;
+
+ for (const data::DecodeChannel &ch : channels_)
+ if (ch.assigned_signal) {
+ no_signals_assigned = false;
+
+ const shared_ptr<Logic> logic_data = ch.assigned_signal->logic_data();
+ if (!logic_data || logic_data->logic_segments().empty())
+ return 0;
+
+ // Find the min value of all segment counts
+ if ((uint64_t)(logic_data->logic_segments().size()) < count)
+ count = logic_data->logic_segments().size();
+ }
+
+ return (no_signals_assigned ? 0 : count);
+}
+
+uint32_t DecodeSignal::get_input_samplerate(uint32_t segment_id) const
+{
+ double samplerate = 0;
+
+ for (const data::DecodeChannel &ch : channels_)
+ if (ch.assigned_signal) {
+ const shared_ptr<Logic> logic_data = ch.assigned_signal->logic_data();
+ if (!logic_data || logic_data->logic_segments().empty())
+ continue;
+
+ try {
+ const shared_ptr<LogicSegment> segment = logic_data->logic_segments().at(segment_id);
+ samplerate = segment->samplerate();
+ } catch (out_of_range&) {
+ // Do nothing
+ }
+ break;
+ }
+
+ return samplerate;
}
void DecodeSignal::update_channel_list()
{
- list<data::DecodeChannel> prev_channels = channels_;
+ vector<data::DecodeChannel> prev_channels = channels_;
channels_.clear();
uint16_t id = 0;
// Copy existing entries, create new as needed
- for (shared_ptr<Decoder> decoder : decoder_stack_->stack()) {
+ for (shared_ptr<Decoder> decoder : stack_) {
const srd_decoder* srd_d = decoder->decoder();
const GSList *l;
bool ch_added = false;
// Copy but update ID if this channel was in the list before
- for (data::DecodeChannel ch : prev_channels)
+ for (data::DecodeChannel &ch : prev_channels)
if (ch.pdch_ == pdch) {
ch.id = id++;
channels_.push_back(ch);
if (!ch_added) {
// Create new entry without a mapped signal
- data::DecodeChannel ch = {id++, false, nullptr,
+ data::DecodeChannel ch = {id++, 0, false, nullptr,
QString::fromUtf8(pdch->name), QString::fromUtf8(pdch->desc),
SRD_INITIAL_PIN_SAME_AS_SAMPLE0, decoder, pdch};
channels_.push_back(ch);
bool ch_added = false;
// Copy but update ID if this channel was in the list before
- for (data::DecodeChannel ch : prev_channels)
+ for (data::DecodeChannel &ch : prev_channels)
if (ch.pdch_ == pdch) {
ch.id = id++;
channels_.push_back(ch);
if (!ch_added) {
// Create new entry without a mapped signal
- data::DecodeChannel ch = {id++, true, nullptr,
+ data::DecodeChannel ch = {id++, 0, true, nullptr,
QString::fromUtf8(pdch->name), QString::fromUtf8(pdch->desc),
SRD_INITIAL_PIN_SAME_AS_SAMPLE0, decoder, pdch};
channels_.push_back(ch);
}
}
+ // Invalidate the logic output data if the channel assignment changed
+ if (prev_channels.size() != channels_.size()) {
+ // The number of channels changed, there's definitely a difference
+ logic_mux_data_invalid_ = true;
+ } else {
+ // Same number but assignment may still differ, so compare all channels
+ for (size_t i = 0; i < channels_.size(); i++) {
+ const data::DecodeChannel &p_ch = prev_channels[i];
+ const data::DecodeChannel &ch = channels_[i];
+
+ if ((p_ch.pdch_ != ch.pdch_) ||
+ (p_ch.assigned_signal != ch.assigned_signal)) {
+ logic_mux_data_invalid_ = true;
+ break;
+ }
+ }
+
+ }
+
channels_updated();
}
-void DecodeSignal::on_new_annotations()
+void DecodeSignal::commit_decoder_channels()
+{
+ // Submit channel list to every decoder, containing only the relevant channels
+ for (shared_ptr<decode::Decoder> dec : stack_) {
+ vector<data::DecodeChannel*> channel_list;
+
+ for (data::DecodeChannel &ch : channels_)
+ if (ch.decoder_ == dec)
+ channel_list.push_back(&ch);
+
+ dec->set_channels(channel_list);
+ }
+
+ // Channel bit IDs must be in sync with the channel's apperance in channels_
+ int id = 0;
+ for (data::DecodeChannel &ch : channels_)
+ if (ch.assigned_signal)
+ ch.bit_id = id++;
+}
+
+void DecodeSignal::mux_logic_samples(uint32_t segment_id, const int64_t start, const int64_t end)
+{
+ // Enforce end to be greater than start
+ if (end <= start)
+ return;
+
+ // Fetch the channel segments and their data
+ vector<shared_ptr<LogicSegment> > segments;
+ vector<const uint8_t*> signal_data;
+ vector<uint8_t> signal_in_bytepos;
+ vector<uint8_t> signal_in_bitpos;
+
+ for (data::DecodeChannel &ch : channels_)
+ if (ch.assigned_signal) {
+ const shared_ptr<Logic> logic_data = ch.assigned_signal->logic_data();
+
+ shared_ptr<LogicSegment> segment;
+ try {
+ segment = logic_data->logic_segments().at(segment_id);
+ } catch (out_of_range&) {
+ qDebug() << "Muxer error for" << name() << ":" << ch.assigned_signal->name() \
+ << "has no logic segment" << segment_id;
+ return;
+ }
+ segments.push_back(segment);
+
+ uint8_t* data = new uint8_t[(end - start) * segment->unit_size()];
+ segment->get_samples(start, end, data);
+ signal_data.push_back(data);
+
+ const int bitpos = ch.assigned_signal->logic_bit_index();
+ signal_in_bytepos.push_back(bitpos / 8);
+ signal_in_bitpos.push_back(bitpos % 8);
+ }
+
+
+ shared_ptr<LogicSegment> output_segment;
+ try {
+ output_segment = logic_mux_data_->logic_segments().at(segment_id);
+ } catch (out_of_range&) {
+ qDebug() << "Muxer error for" << name() << ": no logic mux segment" \
+ << segment_id << "in mux_logic_samples(), mux segments size is" \
+ << logic_mux_data_->logic_segments().size();
+ return;
+ }
+
+ // Perform the muxing of signal data into the output data
+ uint8_t* output = new uint8_t[(end - start) * output_segment->unit_size()];
+ unsigned int signal_count = signal_data.size();
+
+ for (int64_t sample_cnt = 0; !logic_mux_interrupt_ && (sample_cnt < (end - start));
+ sample_cnt++) {
+
+ int bitpos = 0;
+ uint8_t bytepos = 0;
+
+ const int out_sample_pos = sample_cnt * output_segment->unit_size();
+ for (unsigned int i = 0; i < output_segment->unit_size(); i++)
+ output[out_sample_pos + i] = 0;
+
+ for (unsigned int i = 0; i < signal_count; i++) {
+ const int in_sample_pos = sample_cnt * segments[i]->unit_size();
+ const uint8_t in_sample = 1 &
+ ((signal_data[i][in_sample_pos + signal_in_bytepos[i]]) >> (signal_in_bitpos[i]));
+
+ const uint8_t out_sample = output[out_sample_pos + bytepos];
+
+ output[out_sample_pos + bytepos] = out_sample | (in_sample << bitpos);
+
+ bitpos++;
+ if (bitpos > 7) {
+ bitpos = 0;
+ bytepos++;
+ }
+ }
+ }
+
+ output_segment->append_payload(output, (end - start) * output_segment->unit_size());
+ delete[] output;
+
+ for (const uint8_t* data : signal_data)
+ delete[] data;
+}
+
+void DecodeSignal::logic_mux_proc()
+{
+ uint32_t segment_id = 0;
+
+ assert(logic_mux_data_);
+
+ // Create initial logic mux segment
+ shared_ptr<LogicSegment> output_segment =
+ make_shared<LogicSegment>(*logic_mux_data_, segment_id,
+ logic_mux_unit_size_, 0);
+ logic_mux_data_->push_segment(output_segment);
+
+ output_segment->set_samplerate(get_input_samplerate(0));
+
+ do {
+ const uint64_t input_sample_count = get_working_sample_count(segment_id);
+ const uint64_t output_sample_count = output_segment->get_sample_count();
+
+ const uint64_t samples_to_process =
+ (input_sample_count > output_sample_count) ?
+ (input_sample_count - output_sample_count) : 0;
+
+ // Process the samples if necessary...
+ if (samples_to_process > 0) {
+ const uint64_t unit_size = output_segment->unit_size();
+ const uint64_t chunk_sample_count = DecodeChunkLength / unit_size;
+
+ uint64_t processed_samples = 0;
+ do {
+ const uint64_t start_sample = output_sample_count + processed_samples;
+ const uint64_t sample_count =
+ min(samples_to_process - processed_samples, chunk_sample_count);
+
+ mux_logic_samples(segment_id, start_sample, start_sample + sample_count);
+ processed_samples += sample_count;
+
+ // ...and process the newly muxed logic data
+ decode_input_cond_.notify_one();
+ } while (!logic_mux_interrupt_ && (processed_samples < samples_to_process));
+ }
+
+ if (samples_to_process == 0) {
+ // TODO Optimize this by caching the input segment count and only
+ // querying it when the cached value was reached
+ if (segment_id < get_input_segment_count() - 1) {
+ // Process next segment
+ segment_id++;
+
+ output_segment =
+ make_shared<LogicSegment>(*logic_mux_data_, segment_id,
+ logic_mux_unit_size_, 0);
+ logic_mux_data_->push_segment(output_segment);
+
+ output_segment->set_samplerate(get_input_samplerate(segment_id));
+
+ } else {
+ // All segments have been processed
+ logic_mux_data_invalid_ = false;
+
+ // Wait for more input
+ unique_lock<mutex> logic_mux_lock(logic_mux_mutex_);
+ logic_mux_cond_.wait(logic_mux_lock);
+ }
+ }
+ } while (!logic_mux_interrupt_);
+}
+
+void DecodeSignal::decode_data(
+ const int64_t abs_start_samplenum, const int64_t sample_count,
+ const shared_ptr<LogicSegment> input_segment)
+{
+ const int64_t unit_size = input_segment->unit_size();
+ const int64_t chunk_sample_count = DecodeChunkLength / unit_size;
+
+ for (int64_t i = abs_start_samplenum;
+ !decode_interrupt_ && (i < (abs_start_samplenum + sample_count));
+ i += chunk_sample_count) {
+
+ const int64_t chunk_end = min(i + chunk_sample_count,
+ abs_start_samplenum + sample_count);
+
+ // Report this chunk as already decoded so that annotations don't
+ // appear in an area that we claim to not having been been decoded yet
+ {
+ lock_guard<mutex> lock(output_mutex_);
+ segments_.at(current_segment_id_).samples_decoded = chunk_end;
+ }
+
+ int64_t data_size = (chunk_end - i) * unit_size;
+ uint8_t* chunk = new uint8_t[data_size];
+ input_segment->get_samples(i, chunk_end, chunk);
+
+ if (srd_session_send(srd_session_, i, chunk_end, chunk,
+ data_size, unit_size) != SRD_OK) {
+ set_error_message(tr("Decoder reported an error"));
+ delete[] chunk;
+ break;
+ }
+
+ delete[] chunk;
+
+ // Notify the frontend that we processed some data and
+ // possibly have new annotations as well
+ new_annotations();
+ }
+}
+
+void DecodeSignal::decode_proc()
+{
+ current_segment_id_ = 0;
+
+ // If there is no input data available yet, wait until it is or we're interrupted
+ if (logic_mux_data_->logic_segments().size() == 0) {
+ unique_lock<mutex> input_wait_lock(input_mutex_);
+ decode_input_cond_.wait(input_wait_lock);
+ }
+
+ if (decode_interrupt_)
+ return;
+
+ shared_ptr<LogicSegment> input_segment = logic_mux_data_->logic_segments().front();
+ assert(input_segment);
+
+ // Create the initial segment and set its sample rate so that we can pass it to SRD
+ create_decode_segment();
+ segments_.at(current_segment_id_).samplerate = input_segment->samplerate();
+ segments_.at(current_segment_id_).start_time = input_segment->start_time();
+
+ start_srd_session();
+
+ uint64_t sample_count = 0;
+ uint64_t abs_start_samplenum = 0;
+ do {
+ // Keep processing new samples until we exhaust the input data
+ do {
+ lock_guard<mutex> input_lock(input_mutex_);
+ sample_count = input_segment->get_sample_count() - abs_start_samplenum;
+
+ if (sample_count > 0) {
+ decode_data(abs_start_samplenum, sample_count, input_segment);
+ abs_start_samplenum += sample_count;
+ }
+ } while (error_message_.isEmpty() && (sample_count > 0) && !decode_interrupt_);
+
+ if (error_message_.isEmpty() && !decode_interrupt_ && sample_count == 0) {
+ if (current_segment_id_ < logic_mux_data_->logic_segments().size() - 1) {
+ // Process next segment
+ current_segment_id_++;
+
+ try {
+ input_segment = logic_mux_data_->logic_segments().at(current_segment_id_);
+ } catch (out_of_range&) {
+ qDebug() << "Decode error for" << name() << ": no logic mux segment" \
+ << current_segment_id_ << "in decode_proc(), mux segments size is" \
+ << logic_mux_data_->logic_segments().size();
+ return;
+ }
+ abs_start_samplenum = 0;
+
+ // Create the next segment and set its metadata
+ create_decode_segment();
+ segments_.at(current_segment_id_).samplerate = input_segment->samplerate();
+ segments_.at(current_segment_id_).start_time = input_segment->start_time();
+
+ // Reset decoder state but keep the decoder stack intact
+ terminate_srd_session();
+ } else {
+ // All segments have been processed
+ decode_finished();
+
+ // 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);
+ }
+ }
+ } while (error_message_.isEmpty() && !decode_interrupt_);
+
+ // Potentially reap decoders when the application no longer is
+ // interested in their (pending) results.
+ if (decode_interrupt_)
+ terminate_srd_session();
+}
+
+void DecodeSignal::start_srd_session()
+{
+ uint64_t samplerate;
+
+ // If there were stack changes, the session has been destroyed by now, so if
+ // it hasn't been destroyed, we can just reset and re-use it
+ if (srd_session_) {
+ // When a decoder stack was created before, re-use it
+ // for the next stream of input data, after terminating
+ // potentially still executing operations, and resetting
+ // internal state. Skip the rather expensive (teardown
+ // and) construction of another decoder stack.
+
+ // TODO Reduce redundancy, use a common code path for
+ // the meta/cb/start sequence?
+ terminate_srd_session();
+ srd_session_metadata_set(srd_session_, SRD_CONF_SAMPLERATE,
+ g_variant_new_uint64(segments_.at(current_segment_id_).samplerate));
+ srd_pd_output_callback_add(srd_session_, SRD_OUTPUT_ANN,
+ DecodeSignal::annotation_callback, this);
+ srd_session_start(srd_session_);
+ return;
+ }
+
+ // Create the session
+ srd_session_new(&srd_session_);
+ assert(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_);
+
+ if (!di) {
+ set_error_message(tr("Failed to create decoder instance"));
+ srd_session_destroy(srd_session_);
+ srd_session_ = nullptr;
+ return;
+ }
+
+ if (prev_di)
+ srd_inst_stack(srd_session_, prev_di, di);
+
+ prev_di = di;
+ }
+
+ // Start the session
+ samplerate = segments_.at(current_segment_id_).samplerate;
+ if (samplerate)
+ 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_);
+
+ // We just recreated the srd session, so all stack changes are applied now
+ stack_config_changed_ = false;
+}
+
+void DecodeSignal::terminate_srd_session()
+{
+ // Call the "terminate and reset" routine for the decoder stack
+ // (if available). This does not harm those stacks which already
+ // have completed their operation, and reduces response time for
+ // those stacks which still are processing data while the
+ // application no longer wants them to.
+ if (srd_session_)
+ srd_session_terminate_reset(srd_session_);
+}
+
+void DecodeSignal::stop_srd_session()
{
- // Forward the signal to the frontend
- new_annotations();
+ if (srd_session_) {
+ // Destroy the session
+ srd_session_destroy(srd_session_);
+ srd_session_ = nullptr;
+
+ // Mark the decoder instances as non-existant since they were deleted
+ for (const shared_ptr<decode::Decoder> &dec : stack_)
+ dec->invalidate_decoder_inst();
+ }
+}
+
+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
+ for (data::DecodeChannel &ch : channels_) {
+ if (!ch.assigned_signal)
+ continue;
+
+ const data::SignalBase *signal = ch.assigned_signal;
+ connect(signal, SIGNAL(samples_cleared()),
+ this, SLOT(on_data_cleared()));
+ connect(signal, SIGNAL(samples_added(uint64_t, uint64_t, uint64_t)),
+ this, SLOT(on_data_received()));
+ }
+}
+
+void DecodeSignal::create_decode_segment()
+{
+ // Create annotation segment
+ segments_.emplace_back(DecodeSegment());
+
+ // Add annotation classes
+ for (const shared_ptr<decode::Decoder> &dec : stack_) {
+ assert(dec);
+ const srd_decoder *const decc = dec->decoder();
+ assert(dec->decoder());
+
+ // Add a row for the decoder if it doesn't have a row list
+ if (!decc->annotation_rows)
+ (segments_.back().annotation_rows)[Row(decc)] =
+ decode::RowData();
+
+ // Add the decoder rows
+ for (const GSList *l = decc->annotation_rows; l; l = l->next) {
+ const srd_decoder_annotation_row *const ann_row =
+ (srd_decoder_annotation_row *)l->data;
+ assert(ann_row);
+
+ const Row row(decc, ann_row);
+
+ // Add a new empty row data object
+ (segments_.back().annotation_rows)[row] =
+ decode::RowData();
+ }
+ }
+}
+
+void DecodeSignal::annotation_callback(srd_proto_data *pdata, void *decode_signal)
+{
+ assert(pdata);
+ assert(decode_signal);
+
+ DecodeSignal *const ds = (DecodeSignal*)decode_signal;
+ assert(ds);
+
+ if (ds->decode_interrupt_)
+ return;
+
+ lock_guard<mutex> lock(ds->output_mutex_);
+
+ // Find the row
+ assert(pdata->pdo);
+ assert(pdata->pdo->di);
+ const srd_decoder *const decc = pdata->pdo->di->decoder;
+ assert(decc);
+
+ const srd_proto_data_annotation *const pda =
+ (const srd_proto_data_annotation*)pdata->data;
+ assert(pda);
+
+ auto row_iter = ds->segments_.at(ds->current_segment_id_).annotation_rows.end();
+
+ // Try looking up the sub-row of this class
+ const auto format = pda->ann_class;
+ const auto r = ds->class_rows_.find(make_pair(decc, format));
+ if (r != ds->class_rows_.end())
+ row_iter = ds->segments_.at(ds->current_segment_id_).annotation_rows.find((*r).second);
+ else {
+ // Failing that, use the decoder as a key
+ row_iter = ds->segments_.at(ds->current_segment_id_).annotation_rows.find(Row(decc));
+ }
+
+ if (row_iter == ds->segments_.at(ds->current_segment_id_).annotation_rows.end()) {
+ qDebug() << "Unexpected annotation: decoder = " << decc <<
+ ", format = " << format;
+ assert(false);
+ return;
+ }
+
+ // Add the annotation
+ (*row_iter).second.emplace_annotation(pdata);
+}
+
+void DecodeSignal::on_capture_state_changed(int state)
+{
+ // If a new acquisition was started, we need to start decoding from scratch
+ if (state == Session::Running) {
+ logic_mux_data_invalid_ = true;
+ begin_decode();
+ }
+}
+
+void DecodeSignal::on_data_cleared()
+{
+ reset_decode();
+}
+
+void DecodeSignal::on_data_received()
+{
+ // If we detected a lack of input data when trying to start decoding,
+ // we have set an error message. Only try again if we now have data
+ // to work with
+ if ((!error_message_.isEmpty()) && (get_input_segment_count() == 0))
+ return;
+
+ if (!logic_mux_thread_.joinable())
+ begin_decode();
+ else
+ logic_mux_cond_.notify_one();
}
} // namespace data
projects / pulseview.git / blobdiff