X-Git-Url: https://sigrok.org/gitweb/?p=pulseview.git;a=blobdiff_plain;f=pv%2Fsession.cpp;h=ef1159ee599f8abfbf0a7e6b90d6c100eeef3f44;hp=4823543213de5b5a080be2ea732d1086aefa4bae;hb=8a7b603b295dacee7160eba8e577d6666472be9f;hpb=4d6c6ea3e6b069787c270d4911083dae05eae4c6

diff --git a/pv/session.cpp b/pv/session.cpp
index 48235432..ef1159ee 100644
--- a/pv/session.cpp
+++ b/pv/session.cpp
@@ -18,6 +18,14 @@
  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301 USA
  */
 
+#ifdef _WIN32
+// Windows: Avoid boost/thread namespace pollution (which includes windows.h).
+#define NOGDI
+#define NORESOURCE
+#endif
+#include <boost/thread/locks.hpp>
+#include <boost/thread/shared_mutex.hpp>
+
 #ifdef ENABLE_DECODE
 #include <libsigrokdecode/libsigrokdecode.h>
 #endif
@@ -214,13 +222,28 @@ set< shared_ptr<data::SignalData> > Session::get_data() const
 	return data;
 }
 
-boost::shared_mutex& Session::signals_mutex() const
+double Session::get_samplerate() const
 {
-	return signals_mutex_;
+	double samplerate = 0.0;
+
+	for (const shared_ptr<pv::data::SignalData> d : get_data()) {
+		assert(d);
+		const vector< shared_ptr<pv::data::Segment> > segments =
+			d->segments();
+		for (const shared_ptr<pv::data::Segment> &s : segments)
+			samplerate = std::max(samplerate, s->samplerate());
+	}
+
+	// If there is no sample rate given we use samples as unit
+	if (samplerate == 0.0)
+		samplerate = 1.0;
+
+	return samplerate;
 }
 
-const unordered_set< shared_ptr<view::Signal> >& Session::signals() const
+const unordered_set< shared_ptr<view::Signal> > Session::signals() const
 {
+	shared_lock<shared_mutex> lock(signals_mutex_);
 	return signals_;
 }
 
@@ -301,9 +324,14 @@ void Session::remove_decode_signal(view::DecodeTrace *signal)
 
 void Session::set_capture_state(capture_state state)
 {
-	lock_guard<mutex> lock(sampling_mutex_);
-	const bool changed = capture_state_ != state;
-	capture_state_ = state;
+	bool changed;
+
+	{
+		lock_guard<mutex> lock(sampling_mutex_);
+		changed = capture_state_ != state;
+		capture_state_ = state;
+	}
+
 	if (changed)
 		capture_state_changed(state);
 }
@@ -458,6 +486,11 @@ void Session::feed_in_meta(shared_ptr<Meta> meta)
 	for (auto entry : meta->config()) {
 		switch (entry.first->id()) {
 		case SR_CONF_SAMPLERATE:
+			// We can't rely on the header to always contain the sample rate,
+			// so in case it's supplied via a meta packet, we use it.
+			if (!cur_samplerate_)
+				cur_samplerate_ = g_variant_get_uint64(entry.second.gobj());
+
 			/// @todo handle samplerate changes
 			break;
 		default:
@@ -469,6 +502,27 @@ void Session::feed_in_meta(shared_ptr<Meta> meta)
 	signals_changed();
 }
 
+void Session::feed_in_trigger()
+{
+	// The channel containing most samples should be most accurate
+	uint64_t sample_count = 0;
+
+	for (const shared_ptr<pv::data::SignalData> d : get_data()) {
+		assert(d);
+		uint64_t temp_count = 0;
+
+		const vector< shared_ptr<pv::data::Segment> > segments =
+			d->segments();
+		for (const shared_ptr<pv::data::Segment> &s : segments)
+			temp_count += s->get_sample_count();
+
+		if (temp_count > sample_count)
+			sample_count = temp_count;
+	}
+
+	trigger_event(sample_count / get_samplerate());
+}
+
 void Session::feed_in_frame_begin()
 {
 	if (cur_logic_segment_ || !cur_analog_segments_.empty())
@@ -522,7 +576,7 @@ void Session::feed_in_analog(shared_ptr<Analog> analog)
 	const vector<shared_ptr<Channel>> channels = analog->channels();
 	const unsigned int channel_count = channels.size();
 	const size_t sample_count = analog->num_samples() / channel_count;
-	const float *data = analog->data_pointer();
+	const float *data = static_cast<const float *>(analog->data_pointer());
 	bool sweep_beginning = false;
 
 	for (auto channel : channels)
@@ -593,6 +647,10 @@ void Session::data_feed_in(shared_ptr<sigrok::Device> device,
 		feed_in_meta(dynamic_pointer_cast<Meta>(packet->payload()));
 		break;
 
+	case SR_DF_TRIGGER:
+		feed_in_trigger();
+		break;
+
 	case SR_DF_FRAME_BEGIN:
 		feed_in_frame_begin();
 		break;