Make more connections direct for automation (#4942)

plugins/LadspaEffect/LadspaControls.cpp

@@ -36,7 +36,8 @@ LadspaControls::LadspaControls( LadspaEffect * _eff ) :
 {
 
 	connect( &m_stereoLinkModel, SIGNAL( dataChanged() ),
-				this, SLOT( updateLinkStatesFromGlobal() ) );
+				this, SLOT( updateLinkStatesFromGlobal() ),
+				Qt::DirectConnection );
 
 	multi_proc_t controls = m_effect->getPortControls();
 	m_controlCount = controls.count();
@@ -59,7 +60,8 @@ LadspaControls::LadspaControls( LadspaEffect * _eff ) :
 				if( linked_control )
 				{
 					connect( (*it)->control, SIGNAL( linkChanged( int, bool ) ),
-								this, SLOT( linkPort( int, bool ) ) );
+								this, SLOT( linkPort( int, bool ) ),
+								Qt::DirectConnection );
 				}
 			}
 		}

plugins/VstEffect/VstEffect.cpp

@@ -145,9 +145,6 @@ void VstEffect::openPlugin( const QString & _plugin )
 		return;
 	}
 
-	VstPlugin::connect( Engine::getSong(), SIGNAL( tempoChanged( bpm_t ) ), m_plugin.data(), SLOT( setTempo( bpm_t ) ) );
-	m_plugin->setTempo( Engine::getSong()->getTempo() );
-
 	delete tf;
 
 	m_key.attributes["file"] = _plugin;

plugins/vst_base/RemoteVstPlugin.cpp

@@ -1953,7 +1953,8 @@ DWORD WINAPI RemoteVstPlugin::processingThread( LPVOID _param )
         {
 		if( m.id == IdStartProcessing
 			|| m.id == IdMidiEvent
-			|| m.id == IdVstSetParameter )
+			|| m.id == IdVstSetParameter
+			|| m.id == IdVstSetTempo )
 		{
 			_this->processMessage( m );
 		}

plugins/vst_base/VstPlugin.cpp

@@ -92,7 +92,7 @@ VstPlugin::VstPlugin( const QString & _plugin ) :
 	setTempo( Engine::getSong()->getTempo() );
 
 	connect( Engine::getSong(), SIGNAL( tempoChanged( bpm_t ) ),
-			this, SLOT( setTempo( bpm_t ) ) );
+			this, SLOT( setTempo( bpm_t ) ), Qt::DirectConnection );
 	connect( Engine::mixer(), SIGNAL( sampleRateChanged() ),
 				this, SLOT( updateSampleRate() ) );