From 6574889f1332c5e587413a69966b5892bb394c1e Mon Sep 17 00:00:00 2001
From: jules <jules@rawmaterialsoftware.com>
Date: Thu, 31 Jul 2008 11:32:24 +0000
Subject: [PATCH]

---
 .../wrapper/formats/AudioUnit/juce_AudioUnitWrapper.cpp  | 6 ++++++
 .../audio/processors/juce_AudioProcessor.cpp             | 5 +++++
 .../audio/processors/juce_AudioProcessor.h               | 9 +++++++++
 3 files changed, 20 insertions(+)

diff --git a/extras/audio plugins/wrapper/formats/AudioUnit/juce_AudioUnitWrapper.cpp b/extras/audio plugins/wrapper/formats/AudioUnit/juce_AudioUnitWrapper.cpp
index 6c215d4c8a..e89ded576b 100644
--- a/extras/audio plugins/wrapper/formats/AudioUnit/juce_AudioUnitWrapper.cpp	
+++ b/extras/audio plugins/wrapper/formats/AudioUnit/juce_AudioUnitWrapper.cpp	
@@ -289,6 +289,9 @@ public:
             if (name.isEmpty() || ! juceFilter->isParameterAutomatable (index))
                 outParameterInfo.flags |= kAudioUnitParameterFlag_NonRealTime;
 
+            if (juceFilter->isMetaParameter (index))
+                outParameterInfo.flags |= kAudioUnitParameterFlag_IsGlobalMeta;
+
             AUBase::FillInParameterName (outParameterInfo,
                                          PlatformUtilities::juceStringToCFString (name),
                                          false);
@@ -536,6 +539,9 @@ public:
         if (! prepared)
             prepareToPlay();
 
+        if (juceFilter != 0)
+            juceFilter->reset();
+
         return JuceAUBaseClass::Reset (inScope, inElement);
     }
 
diff --git a/src/juce_appframework/audio/processors/juce_AudioProcessor.cpp b/src/juce_appframework/audio/processors/juce_AudioProcessor.cpp
index 4b8194e3de..ff76c7e50a 100644
--- a/src/juce_appframework/audio/processors/juce_AudioProcessor.cpp
+++ b/src/juce_appframework/audio/processors/juce_AudioProcessor.cpp
@@ -192,6 +192,11 @@ bool AudioProcessor::isParameterAutomatable (int /*index*/) const
     return true;
 }
 
+bool AudioProcessor::isMetaParameter (int parameterIndex) const
+{
+    return false;
+}
+
 void AudioProcessor::suspendProcessing (const bool shouldBeSuspended)
 {
     const ScopedLock sl (callbackLock);
diff --git a/src/juce_appframework/audio/processors/juce_AudioProcessor.h b/src/juce_appframework/audio/processors/juce_AudioProcessor.h
index 2d59f8950f..45dd745e3d 100644
--- a/src/juce_appframework/audio/processors/juce_AudioProcessor.h
+++ b/src/juce_appframework/audio/processors/juce_AudioProcessor.h
@@ -403,6 +403,15 @@ public:
     */
     virtual bool isParameterAutomatable (int parameterIndex) const;
 
+    /** Should return true if this parameter is a "meta" parameter.
+
+        A meta-parameter is a parameter that changes other params. It is used
+        by some hosts (e.g. AudioUnit hosts).
+
+        By default this returns false.
+    */
+    virtual bool isMetaParameter (int parameterIndex) const;
+
     /** Sends a signal to the host to tell it that the user is about to start changing this
         parameter.