Implement ConstantSourceNode

third_party/WebKit/Source/modules/webaudio/BaseAudioContext.h

 /*
  * 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 39 matching lines @@
 
 class AnalyserNode;
 class AudioBuffer;
 class AudioBufferCallback;
 class AudioBufferSourceNode;
 class AudioListener;
 class AudioSummingJunction;
 class BiquadFilterNode;
 class ChannelMergerNode;
 class ChannelSplitterNode;
+class ConstantSourceNode;
 class ConvolverNode;
 class DelayNode;
 class Dictionary;
 class Document;
 class DynamicsCompressorNode;
 class ExceptionState;
 class GainNode;
 class HTMLMediaElement;
 class IIRFilterNode;
 class MediaElementAudioSourceNode;
@@ skipping 92 matching lines @@
                              AudioBufferCallback* successCallback,
                              AudioBufferCallback* errorCallback);
 
   AudioListener* listener() { return m_listener; }
 
   virtual bool hasRealtimeConstraint() = 0;
 
   // The AudioNode create methods are called on the main thread (from
   // JavaScript).
   AudioBufferSourceNode* createBufferSource(ExceptionState&);
+  ConstantSourceNode* createConstantSource(ExceptionState&);
   MediaElementAudioSourceNode* createMediaElementSource(HTMLMediaElement*,
                                                         ExceptionState&);
   MediaStreamAudioSourceNode* createMediaStreamSource(MediaStream*,
                                                       ExceptionState&);
   MediaStreamAudioDestinationNode* createMediaStreamDestination(
       ExceptionState&);
   GainNode* createGain(ExceptionState&);
   BiquadFilterNode* createBiquadFilter(ExceptionState&);
   WaveShaperNode* createWaveShaper(ExceptionState&);
   DelayNode* createDelay(ExceptionState&);
@@ skipping 236 matching lines @@
   Member<PeriodicWave> m_periodicWaveTriangle;
 
   // This is considering 32 is large enough for multiple channels audio.
   // It is somewhat arbitrary and could be increased if necessary.
   enum { MaxNumberOfChannels = 32 };
 };
 
 }  // namespace blink
 
 #endif  // BaseAudioContext_h