Fix Gtk rendering corruption problems when running monolithic (internal engine).

Reduce Gtk main loop overhead when running monolithic.
Fix crash on importing certain Om patches.


git-svn-id: http://svn.drobilla.net/lad/ingen@870 a436a847-0d15-0410-975c-d299462d15a1

5 files changed, 19 insertions, 21 deletions

diff --git a/src/libs/engine/Engine.cpp b/src/libs/engine/Engine.cpp
index 44cac86c..004de200 100644
--- a/src/libs/engine/Engine.cpp
+++ b/src/libs/engine/Engine.cpp
@@ -120,10 +120,7 @@ Engine::main()
 	}
 	cout << "[Main] Done main loop." << endl;
 	
-	_event_source->deactivate();
-	
-	if (_activated)
-		deactivate();
+	deactivate();
 
 	return 0;
 }
@@ -152,23 +149,21 @@ Engine::main_iteration()
 void
 Engine::start_jack_driver()
 {
-	if (_audio_driver)
-		cerr << "[Engine] Warning:  replaced audio driver" << endl;
-	
-	_audio_driver = SharedPtr<AudioDriver>(new JackAudioDriver(*this));
+	if ( ! _audio_driver)
+		_audio_driver = SharedPtr<AudioDriver>(new JackAudioDriver(*this));
+	else
+		cerr << "[Engine::start_jack_driver] Audio driver already running" << endl;
 }
 
 
 void
 Engine::start_osc_driver(int port)
 {
-	if (_event_source)
-		cerr << "[Engine] Warning: replaced event source (engine interface)" << endl;
-
-	_event_source = SharedPtr<EventSource>(new OSCEngineReceiver(
-			*this, pre_processor_queue_size, port));
-	
-	//_osc_driver = _event_source;
+	if ( ! _event_source)
+		_event_source = SharedPtr<EventSource>(new OSCEngineReceiver(
+				*this, pre_processor_queue_size, port));
+	else
+		cerr << "[Engine::start_osc_driver] Event source already running" << endl;
 }
 	
 
@@ -247,6 +242,8 @@ Engine::deactivate()
 {
 	if (!_activated)
 		return;
+	
+	_event_source->deactivate();
 
 	/*for (Tree<GraphObject*>::iterator i = _object_store->objects().begin();
 			i != _object_store->objects().end(); ++i)
diff --git a/src/libs/engine/NodeFactory.cpp b/src/libs/engine/NodeFactory.cpp
index b2714e23..c2b9536a 100644
--- a/src/libs/engine/NodeFactory.cpp
+++ b/src/libs/engine/NodeFactory.cpp
@@ -336,7 +336,11 @@ NodeFactory::load_lv2_plugin(const string& plug_uri,
 
 	if (plugin) {
 		n = new LV2Node(plugin, node_name, polyphonic, parent, srate, buffer_size);
-		bool success = ((LV2Node*)n)->instantiate();
+ 
+		Glib::Mutex::Lock lock(_world->rdf_world->mutex());
+		
+		const bool success = ((LV2Node*)n)->instantiate();
+		
 		if (!success) {
 			delete n;
 			n = NULL;
diff --git a/src/libs/engine/PostProcessor.cpp b/src/libs/engine/PostProcessor.cpp
index 96aee3b1..a50ca275 100644
--- a/src/libs/engine/PostProcessor.cpp
+++ b/src/libs/engine/PostProcessor.cpp
@@ -53,12 +53,10 @@ PostProcessor::process()
 	while (_engine.audio_driver()->context().event_sink().read(
 				_event_buffer_size, _event_buffer)) {
 		if (((Event*)_event_buffer)->time() > end_time)
-			break;
+			break; // FIXME: loses event?
 		((Event*)_event_buffer)->post_process();
 	}
 
-
-
 	/* Process normal events */
 	while ( ! _events.empty()) {
 		Event* const ev = _events.front();
diff --git a/src/libs/engine/QueuedEngineInterface.cpp b/src/libs/engine/QueuedEngineInterface.cpp
index 053c0ff8..a2603665 100644
--- a/src/libs/engine/QueuedEngineInterface.cpp
+++ b/src/libs/engine/QueuedEngineInterface.cpp
@@ -38,6 +38,7 @@ QueuedEngineInterface::now() const
 {
 	// Exactly one cycle latency (some could run ASAP if we get lucky, but not always, and a slight
 	// constant latency is far better than jittery lower (average) latency
+	assert(_engine.audio_driver());
 	return _engine.audio_driver()->frame_time() + _engine.audio_driver()->buffer_size();
 }
 
diff --git a/src/libs/engine/util.hpp b/src/libs/engine/util.hpp
index ce943673..4d03d94e 100644
--- a/src/libs/engine/util.hpp
+++ b/src/libs/engine/util.hpp
@@ -65,8 +65,6 @@ set_denormal_flags()
 		exit(EXIT_FAILURE);
 	}
 #endif
-	// Set 387 control register via standard C99 interface
-	fesetround(FE_TOWARDZERO);
 }
 
 } // namespace Ingen