AudioProcessorGraph: added reset() method and adjusted locking.

modules/juce_audio_processors/processors/juce_AudioProcessorGraph.cpp

@@ -886,7 +886,7 @@ AudioProcessorGraph::Node::Node (const uint32 nodeId_, AudioProcessor* const pro
       processor (processor_),
       isPrepared (false)
 {
-    jassert (processor_ != nullptr);
+    jassert (processor != nullptr);
 }
 
 void AudioProcessorGraph::Node::prepare (const double sampleRate, const int blockSize,
@@ -1167,7 +1167,7 @@ void AudioProcessorGraph::clearRenderingSequence()
     Array<void*> oldOps;
 
     {
-        const ScopedLock sl (renderLock);
+        const ScopedLock sl (getCallbackLock());
         renderingOps.swapWithArray (oldOps);
     }
 
@@ -1231,7 +1231,7 @@ void AudioProcessorGraph::buildRenderingSequence()
 
     {
         // swap over to the new rendering sequence..
-        const ScopedLock sl (renderLock);
+        const ScopedLock sl (getCallbackLock());
 
         renderingBuffers.setSize (numRenderingBuffersNeeded, getBlockSize());
         renderingBuffers.clear();
@@ -1280,12 +1280,18 @@ void AudioProcessorGraph::releaseResources()
     currentMidiOutputBuffer.clear();
 }
 
+void AudioProcessorGraph::reset()
+{
+    const ScopedLock sl (getCallbackLock());
+
+    for (int i = 0; i < nodes.size(); ++i)
+        nodes.getUnchecked(i)->getProcessor()->reset();
+}
+
 void AudioProcessorGraph::processBlock (AudioSampleBuffer& buffer, MidiBuffer& midiMessages)
 {
     const int numSamples = buffer.getNumSamples();
 
-    const ScopedLock sl (renderLock);
-
     currentAudioInputBuffer = &buffer;
     currentAudioOutputBuffer.setSize (jmax (1, buffer.getNumChannels()), numSamples);
     currentAudioOutputBuffer.clear();

modules/juce_audio_processors/processors/juce_AudioProcessorGraph.h

@@ -360,6 +360,7 @@ public:
     void prepareToPlay (double sampleRate, int estimatedSamplesPerBlock);
     void releaseResources();
     void processBlock (AudioSampleBuffer&, MidiBuffer&);
+    void reset();
 
     const String getInputChannelName (int channelIndex) const;
     const String getOutputChannelName (int channelIndex) const;
@@ -395,8 +396,6 @@ private:
     uint32 lastNodeId;
     AudioSampleBuffer renderingBuffers;
     OwnedArray <MidiBuffer> midiBuffers;
-
-    CriticalSection renderLock;
     Array<void*> renderingOps;
 
     friend class AudioGraphIOProcessor;