working version of AU parameter change notification, presets too

git-svn-id: svn://localhost/ardour2/branches/2.0-ongoing@6058 d708f5d6-7413-0410-9779-e7cbd77b26cf

diff --git a/libs/ardour/audio_unit.cc b/libs/ardour/audio_unit.cc
index d09537e82802b8692959b4bc59c1476ddade6c9b..dfb21b1de9b1961c35e8e7c399ead21546f8b400 100644 (file)
--- a/libs/ardour/audio_unit.cc
+++ b/libs/ardour/audio_unit.cc
@@ -1,6 +1,7 @@
 /*
     Copyright (C) 2006-2009 Paul Davis 
-       
+    Some portions Copyright (C) Sophia Poirier.
+
     This program is free software; you can redistribute it and/or modify
     it under the terms of the GNU General Public License as published by
     the Free Software Foundation; either version 2 of the License, or
@@ -45,6 +46,7 @@
 #include <CoreFoundation/CoreFoundation.h>
 #include <CoreServices/CoreServices.h>
 #include <AudioUnit/AudioUnit.h>
+#include <AudioToolbox/AudioUnitUtilities.h>
 
 #include "i18n.h"
 
@@ -632,8 +634,15 @@ AUPlugin::set_parameter (uint32_t which, float val)
 
                /* tell the world what we did */
 
-               const AudioUnitParameter inParameter = { unit, d.id, d.scope, d.element };
-               AUParameterListenerNotify (0, 0, &inParameter);
+               AudioUnitEvent theEvent;
+               
+               theEvent.mEventType = kAudioUnitEvent_ParameterValueChange;
+               theEvent.mArgument.mParameter.mAudioUnit = unit->AU();
+               theEvent.mArgument.mParameter.mParameterID = d.id;
+               theEvent.mArgument.mParameter.mScope = d.scope;
+               theEvent.mArgument.mParameter.mElement = d.element;
+               
+               AUEventListenerNotify (NULL, NULL, &theEvent);
        }
 }
 
@@ -1337,6 +1346,13 @@ AUPlugin::set_state(const XMLNode& node)
        if (propertyList) {
                if (unit->SetAUPreset (propertyList) == noErr) {
                        ret = 0;
+                       
+                       /* tell the world */
+
+                       AudioUnitParameter changedUnit;
+                       changedUnit.mAudioUnit = unit->AU();
+                       changedUnit.mParameterID = kAUParameterListener_AnyParameter;
+                       AUParameterListenerNotify (NULL, NULL, &changedUnit);
                } 
                CFRelease (propertyList);
        }
@@ -1383,10 +1399,16 @@ AUPlugin::load_preset (const string preset_label)
 
                if (unit->SetPresentPreset (preset) == 0) {
                        ret = true;
+
+                       /* tell the world */
+
+                       AudioUnitParameter changedUnit;
+                       changedUnit.mAudioUnit = unit->AU();
+                       changedUnit.mParameterID = kAUParameterListener_AnyParameter;
+                       AUParameterListenerNotify (NULL, NULL, &changedUnit);
                }
        }
-
-       
+               
        return ret;
 #else
        if (!seen_loading_message) {