start work on the changes to EngineControl (dialog) to integrate with new backend design, and add "requires-driver" concept to AudioBackend to handle JACK specifically

1 files changed, 2 insertions, 8 deletions

diff --git a/libs/ardour/ardour/audioengine.h b/libs/ardour/ardour/audioengine.h
index 5046206542..6fb13b7ae0 100644
--- a/libs/ardour/ardour/audioengine.h
+++ b/libs/ardour/ardour/audioengine.h
@@ -74,7 +74,8 @@ public:
     int discover_backends();
     std::vector<const AudioBackendInfo*> available_backends() const;
     std::string current_backend_name () const;
-    int set_backend (const std::string&, const std::string& arg1, const std::string& arg2);
+    boost::shared_ptr<AudioBackend> set_backend (const std::string&, const std::string& arg1, const std::string& arg2);
+    boost::shared_ptr<AudioBackend> current_backend() const { return _backend; }
     bool setup_required () const;
 
     ProcessThread* main_thread() const { return _main_thread; }
@@ -172,13 +173,6 @@ public:
     PBD::Signal0<void> Running;
     PBD::Signal0<void> Stopped;
 
-    /* these two are emitted as we create backends that
-       can actually be used to do stuff (e.g. register ports)
-    */
-    
-    PBD::Signal0<void> BackendAvailable;
-    PBD::Signal0<void> BackendRemoved;
-    
     static AudioEngine* instance() { return _instance; }
     static void destroy();
     void died ();