+void Decoder::init_decoder()
+{
+ if (!_probes.empty())
+ {
+ shared_ptr<pv::view::LogicSignal> logic_signal =
+ dynamic_pointer_cast<pv::view::LogicSignal>(
+ (*_probes.begin()).second);
+ if (logic_signal) {
+ shared_ptr<pv::data::Logic> data(
+ logic_signal->data());
+ if (data) {
+ _start_time = data->get_start_time();
+ _samplerate = data->get_samplerate();
+ if (_samplerate == 0.0)
+ _samplerate = 1.0;
+ }
+ }
+ }
+}
+
+void Decoder::decode_proc(shared_ptr<data::Logic> data)
+{
+ srd_session *session;
+ uint8_t chunk[DecodeChunkLength];
+
+ assert(data);
+
+ _annotations.clear();
+
+ const deque< shared_ptr<pv::data::LogicSnapshot> > &snapshots =
+ data->get_snapshots();
+ if (snapshots.empty())
+ return;
+
+ const shared_ptr<pv::data::LogicSnapshot> &snapshot =
+ snapshots.front();
+ const int64_t sample_count = snapshot->get_sample_count() - 1;
+
+ // Create the session
+ srd_session_new(&session);
+ assert(session);
+
+ srd_session_metadata_set(session, SRD_CONF_SAMPLERATE,
+ g_variant_new_uint64((uint64_t)_samplerate));
+
+ srd_pd_output_callback_add(session, SRD_OUTPUT_ANN,
+ Decoder::annotation_callback, this);
+
+ // Create the decoder instance
+ srd_decoder_inst *const decoder_inst = srd_inst_new(
+ session, _decoder->id, _options);
+ if(!decoder_inst) {
+ _error_message = tr("Failed to initialise decoder");
+ return;
+ }
+
+ // Setup the probes
+ GHashTable *const probes = g_hash_table_new_full(g_str_hash,
+ g_str_equal, g_free, (GDestroyNotify)g_variant_unref);
+
+ for(map<const srd_probe*, shared_ptr<view::LogicSignal> >::
+ const_iterator i = _probes.begin();
+ i != _probes.end(); i++)
+ {
+ shared_ptr<view::Signal> signal((*i).second);
+ GVariant *const gvar = g_variant_new_int32(
+ signal->probe()->index);
+ g_variant_ref_sink(gvar);
+ g_hash_table_insert(probes, (*i).first->id, gvar);
+ }
+
+ srd_inst_probe_set_all(decoder_inst, probes);
+
+ // Start the session
+ srd_session_start(session);
+
+ for (int64_t i = 0;
+ !this_thread::interruption_requested() && i < sample_count;
+ i += DecodeChunkLength)
+ {
+ lock_guard<mutex> decode_lock(_global_decode_mutex);
+
+ const int64_t chunk_end = min(
+ i + DecodeChunkLength, sample_count);
+ snapshot->get_samples(chunk, i, chunk_end);
+
+ if (srd_session_send(session, i, i + sample_count,
+ chunk, chunk_end - i) != SRD_OK) {
+ _error_message = tr("Failed to initialise decoder");
+ break;
+ }
+ }
+
+ // Destroy the session
+ srd_session_destroy(session);
+}
+
+void Decoder::annotation_callback(srd_proto_data *pdata, void *decoder)
+{
+ using namespace pv::view::decode;
+
+ assert(pdata);
+ assert(decoder);
+
+ Decoder *const d = (Decoder*)decoder;
+
+ shared_ptr<Annotation> a(new Annotation(pdata));
+ lock_guard<mutex> lock(d->_mutex);
+ d->_annotations.push_back(a);
+
+ d->new_decode_data();
+}
+