Add experimental PortAudio driver

2 files changed, 10 insertions, 2 deletions

diff --git a/src/server/events/CreateGraph.cpp b/src/server/events/CreateGraph.cpp
index 304656af..99b29b66 100644
--- a/src/server/events/CreateGraph.cpp
+++ b/src/server/events/CreateGraph.cpp
@@ -194,8 +194,13 @@ void
 CreateGraph::execute(RunContext& context)
 {
 	if (_graph) {
-		if (_parent && _compiled_graph) {
-			_parent->set_compiled_graph(std::move(_compiled_graph));
+		if (_parent) {
+			if (_compiled_graph) {
+				_parent->set_compiled_graph(std::move(_compiled_graph));
+			}
+		} else {
+			_engine.set_root_graph(_graph);
+			_graph->enable();
 		}
 
 		for (Event* ev : _child_events) {
diff --git a/src/server/events/CreatePort.cpp b/src/server/events/CreatePort.cpp
index 4e34762a..3adf2f8b 100644
--- a/src/server/events/CreatePort.cpp
+++ b/src/server/events/CreatePort.cpp
@@ -102,6 +102,9 @@ CreatePort::pre_process(PreProcessContext& ctx)
 		return Event::pre_process_done(Status::PARENT_NOT_FOUND, parent_path);
 	} else if (!(_graph = dynamic_cast<GraphImpl*>(parent))) {
 		return Event::pre_process_done(Status::INVALID_PARENT, parent_path);
+	} else if (!_graph->parent() && _engine.activated() &&
+	           !_engine.driver()->dynamic_ports()) {
+		return Event::pre_process_done(Status::CREATION_FAILED, _path);
 	}
 
 	const URIs&    uris        = _engine.world()->uris();