Enable Oilpan by default for webaudio/

Source/modules/webaudio/ScriptProcessorNode.cpp

 /*
  * Copyright (C) 2010, Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
  * 1.  Redistributions of source code must retain the above copyright
  *    notice, this list of conditions and the following disclaimer.
  * 2.  Redistributions in binary form must reproduce the above copyright
  *    notice, this list of conditions and the following disclaimer in the
@@ skipping 22 matching lines @@
 #include "modules/webaudio/AudioBuffer.h"
 #include "modules/webaudio/AudioContext.h"
 #include "modules/webaudio/AudioNodeInput.h"
 #include "modules/webaudio/AudioNodeOutput.h"
 #include "modules/webaudio/AudioProcessingEvent.h"
 #include "public/platform/Platform.h"
 #include "wtf/Float32Array.h"
 
 namespace blink {
 
-#if !ENABLE(OILPAN)
-// We need a dedicated specialization for ScriptProcessorNode because it doesn't
-// inherit from RefCounted.
-template<> struct CrossThreadCopierBase<false, false, false, PassRefPtr<ScriptProcessorNode> > : public CrossThreadCopierPassThrough<PassRefPtr<ScriptProcessorNode> > {
-};
-#endif
-
 static size_t chooseBufferSize()
 {
     // Choose a buffer size based on the audio hardware buffer size. Arbitarily make it a power of
     // two that is 4 times greater than the hardware buffer size.
     // FIXME: What is the best way to choose this?
     size_t hardwareBufferSize = Platform::current()->audioHardwareBufferSize();
     size_t bufferSize = 1 << static_cast<unsigned>(log2(4 * hardwareBufferSize) + 0.5);
 
     if (bufferSize < 256)
         return 256;
     if (bufferSize > 16384)
         return 16384;
 
     return bufferSize;
 }
 
-PassRefPtrWillBeRawPtr<ScriptProcessorNode> ScriptProcessorNode::create(AudioContext* context, float sampleRate, size_t bufferSize, unsigned numberOfInputChannels, unsigned numberOfOutputChannels)
+ScriptProcessorNode* ScriptProcessorNode::create(AudioContext* context, float sampleRate, size_t bufferSize, unsigned numberOfInputChannels, unsigned numberOfOutputChannels)
 {
     // Check for valid buffer size.
     switch (bufferSize) {
     case 0:
         bufferSize = chooseBufferSize();
         break;
     case 256:
     case 512:
     case 1024:
     case 2048:
     case 4096:
     case 8192:
     case 16384:
         break;
     default:
-        return nullptr;
+        return 0;
     }
 
     if (!numberOfInputChannels && !numberOfOutputChannels)
-        return nullptr;
+        return 0;
 
     if (numberOfInputChannels > AudioContext::maxNumberOfChannels())
-        return nullptr;
+        return 0;
 
     if (numberOfOutputChannels > AudioContext::maxNumberOfChannels())
-        return nullptr;
+        return 0;
 
-    return adoptRefWillBeNoop(new ScriptProcessorNode(context, sampleRate, bufferSize, numberOfInputChannels, numberOfOutputChannels));
+    return adoptRefCountedGarbageCollectedWillBeNoop(new ScriptProcessorNode(context, sampleRate, bufferSize, numberOfInputChannels, numberOfOutputChannels));
 }
 
 ScriptProcessorNode::ScriptProcessorNode(AudioContext* context, float sampleRate, size_t bufferSize, unsigned numberOfInputChannels, unsigned numberOfOutputChannels)
     : AudioNode(context, sampleRate)
     , m_doubleBufferIndex(0)
     , m_doubleBufferIndexForEvent(0)
     , m_bufferSize(bufferSize)
     , m_bufferReadWriteIndex(0)
     , m_numberOfInputChannels(numberOfInputChannels)
     , m_numberOfOutputChannels(numberOfOutputChannels)
@@ skipping 28 matching lines @@
 void ScriptProcessorNode::initialize()
 {
     if (isInitialized())
         return;
 
     float sampleRate = context()->sampleRate();
 
     // Create double buffers on both the input and output sides.
     // These AudioBuffers will be directly accessed in the main thread by JavaScript.
     for (unsigned i = 0; i < 2; ++i) {
-        RefPtrWillBeRawPtr<AudioBuffer> inputBuffer = m_numberOfInputChannels ? AudioBuffer::create(m_numberOfInputChannels, bufferSize(), sampleRate) : nullptr;
-        RefPtrWillBeRawPtr<AudioBuffer> outputBuffer = m_numberOfOutputChannels ? AudioBuffer::create(m_numberOfOutputChannels, bufferSize(), sampleRate) : nullptr;
+        AudioBuffer* inputBuffer = m_numberOfInputChannels ? AudioBuffer::create(m_numberOfInputChannels, bufferSize(), sampleRate) : 0;
+        AudioBuffer* outputBuffer = m_numberOfOutputChannels ? AudioBuffer::create(m_numberOfOutputChannels, bufferSize(), sampleRate) : 0;
 
         m_inputBuffers.append(inputBuffer);
         m_outputBuffers.append(outputBuffer);
     }
 
     AudioNode::initialize();
 }
 
 void ScriptProcessorNode::uninitialize()
 {
@@ skipping 73 matching lines @@
         // This could be a problem if the main thread is very busy doing other things and is being held up handling previous requests.
         // The audio thread can't block on this lock, so we call tryLock() instead.
         MutexTryLocker tryLocker(m_processEventLock);
         if (!tryLocker.locked()) {
             // We're late in handling the previous request. The main thread must be very busy.
             // The best we can do is clear out the buffer ourself here.
             outputBuffer->zero();
         } else if (context()->executionContext()) {
             // Fire the event on the main thread, not this one (which is the realtime audio thread).
             m_doubleBufferIndexForEvent = m_doubleBufferIndex;
-            context()->executionContext()->postTask(createCrossThreadTask(&ScriptProcessorNode::fireProcessEvent, PassRefPtrWillBeRawPtr<ScriptProcessorNode>(this)));
+            context()->executionContext()->postTask(createCrossThreadTask(&ScriptProcessorNode::fireProcessEvent, this));
         }
 
         swapBuffers();
     }
 }
 
 void ScriptProcessorNode::fireProcessEvent()
 {
     ASSERT(isMainThread());
 
@@ skipping 35 matching lines @@
 void ScriptProcessorNode::trace(Visitor* visitor)
 {
     visitor->trace(m_inputBuffers);
     visitor->trace(m_outputBuffers);
     AudioNode::trace(visitor);
 }
 
 } // namespace blink
 
 #endif // ENABLE(WEB_AUDIO)