Implement ConstantSourceNode

third_party/WebKit/Source/modules/webaudio/BaseAudioContext.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 32 matching lines @@
 #include "modules/webaudio/AudioBuffer.h"
 #include "modules/webaudio/AudioBufferCallback.h"
 #include "modules/webaudio/AudioBufferSourceNode.h"
 #include "modules/webaudio/AudioContext.h"
 #include "modules/webaudio/AudioListener.h"
 #include "modules/webaudio/AudioNodeInput.h"
 #include "modules/webaudio/AudioNodeOutput.h"
 #include "modules/webaudio/BiquadFilterNode.h"
 #include "modules/webaudio/ChannelMergerNode.h"
 #include "modules/webaudio/ChannelSplitterNode.h"
+#include "modules/webaudio/ConstantSourceNode.h"
 #include "modules/webaudio/ConvolverNode.h"
 #include "modules/webaudio/DefaultAudioDestinationNode.h"
 #include "modules/webaudio/DelayNode.h"
 #include "modules/webaudio/DynamicsCompressorNode.h"
 #include "modules/webaudio/GainNode.h"
 #include "modules/webaudio/IIRFilterNode.h"
 #include "modules/webaudio/MediaElementAudioSourceNode.h"
 #include "modules/webaudio/MediaStreamAudioDestinationNode.h"
 #include "modules/webaudio/MediaStreamAudioSourceNode.h"
 #include "modules/webaudio/OfflineAudioCompletionEvent.h"
@@ skipping 257 matching lines @@
 
   AudioBufferSourceNode* node =
       AudioBufferSourceNode::create(*this, exceptionState);
 
   // Do not add a reference to this source node now. The reference will be added
   // when start() is called.
 
   return node;
 }
 
+ConstantSourceNode* BaseAudioContext::createConstantSource(
+    ExceptionState& exceptionState) {
+  DCHECK(isMainThread());
+
+  return ConstantSourceNode::create(*this, exceptionState);
+}
+
 MediaElementAudioSourceNode* BaseAudioContext::createMediaElementSource(
     HTMLMediaElement* mediaElement,
     ExceptionState& exceptionState) {
   DCHECK(isMainThread());
 
   return MediaElementAudioSourceNode::create(*this, *mediaElement,
                                              exceptionState);
 }
 
 MediaStreamAudioSourceNode* BaseAudioContext::createMediaStreamSource(
@@ skipping 503 matching lines @@
 }
 
 SecurityOrigin* BaseAudioContext::getSecurityOrigin() const {
   if (getExecutionContext())
     return getExecutionContext()->getSecurityOrigin();
 
   return nullptr;
 }
 
 }  // namespace blink