Handling of LoopBack driver only when really needed.

git-svn-id: http://subversion.jackaudio.org/jack/jack2/trunk/jackmp@1234 0c269be4-1314-0410-8aa9-9f06e86f4224

ChangeLog

@@ -1,6 +1,10 @@
----------------------------
-  Jackdmp changes log
 ---------------------------
+  Jackdmp changes log
+---------------------------
+
+2006-09-11  Stephane Letz  <letz@grame.fr>
+
+	* Handling of LoopBack driver only when really needed.
 
 2006-09-06  Stephane Letz  <letz@grame.fr>
 
@@ -9,7 +13,7 @@
 2006-09-04  Stephane Letz  <letz@grame.fr>
 
 	* Correct Windows VC++ projects.
-
+
 2006-09-03  Stephane Letz  <letz@grame.fr>
 
 	* First import of version 0.58 code

common/JackServer.cpp

@@ -51,7 +51,7 @@ JackServer::JackServer(bool sync, long timeout, bool rt, long priority, long loo
     fSignal = JackGlobals::MakeInterProcessSync();
     fEngine = new JackEngine(fGraphManager, fSynchroTable, fEngineControl, fSignal, sync, timeout, rt, priority, verbose);
     fFreewheelDriver = new JackThreadedDriver(new JackFreewheelDriver("freewheel", fEngine, fSynchroTable));
-    fLoopbackDriver = new JackLoopbackDriver("loopback", fEngine, fSynchroTable);
+    fLoopbackDriver = (loopback > 0) ? new JackLoopbackDriver("loopback", fEngine, fSynchroTable) : NULL;
     fChannel = JackGlobals::MakeServerChannel();
     fState = new JackConnectionManager();
     fFreewheel = false;
@@ -111,7 +111,7 @@ int JackServer::Open(jack_driver_desc_t* driver_desc, JSList* driver_params)
     }
 
     // Before engine open
-    if (fLoopbackDriver->Open(fEngineControl->fBufferSize, fEngineControl->fSampleRate, 1, 1, fLoopback, fLoopback, false, "loopback", "loopback", 0, 0) != 0) {
+    if (fLoopback > 0 && fLoopbackDriver->Open(fEngineControl->fBufferSize, fEngineControl->fSampleRate, 1, 1, fLoopback, fLoopback, false, "loopback", "loopback", 0, 0) != 0) {
         jack_error("Cannot open driver");
         return -1;
     }
@@ -155,7 +155,8 @@ int JackServer::Close()
         fLoopbackDriver->Detach();
     fAudioDriver->Close();
     fFreewheelDriver->Close();
-    fLoopbackDriver->Close();
+	if (fLoopback > 0)
+		fLoopbackDriver->Close();
     fEngine->Close();
 
 #ifdef __APPLE__