From bec39347bb3bb5bf1187ccaf471d26247f28b585 Mon Sep 17 00:00:00 2001
From: Kristian Monsen <kristianm@google.com>
Date: Thu, 30 Sep 2010 15:42:16 +0100
Subject: Merge WebKit at r68651 : Initial merge by git.

Change-Id: I3d6bff59f17eedd6722723354f386fec9be8ad12
---
 WebCore/webaudio/AudioDestinationNode.h | 76 +++++++++++++++++++++++++++++++++
 1 file changed, 76 insertions(+)
 create mode 100644 WebCore/webaudio/AudioDestinationNode.h

(limited to 'WebCore/webaudio/AudioDestinationNode.h')

diff --git a/WebCore/webaudio/AudioDestinationNode.h b/WebCore/webaudio/AudioDestinationNode.h
new file mode 100644
index 0000000..b130518
--- /dev/null
+++ b/WebCore/webaudio/AudioDestinationNode.h
@@ -0,0 +1,76 @@
+/*
+ * 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
+ *     documentation and/or other materials provided with the distribution.
+ * 3.  Neither the name of Apple Computer, Inc. ("Apple") nor the names of
+ *     its contributors may be used to endorse or promote products derived
+ *     from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY APPLE AND ITS CONTRIBUTORS "AS IS" AND ANY
+ * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+ * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL APPLE OR ITS CONTRIBUTORS BE LIABLE FOR ANY
+ * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+ * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifndef AudioDestinationNode_h
+#define AudioDestinationNode_h
+
+#include "AudioDestination.h"
+#include "AudioNode.h"
+#include "AudioSourceProvider.h"
+#include <wtf/OwnPtr.h>
+#include <wtf/PassRefPtr.h>
+
+namespace WebCore {
+
+class AudioBus;
+class AudioContext;
+    
+class AudioDestinationNode : public AudioNode, public AudioSourceProvider {
+public:
+    static PassRefPtr<AudioDestinationNode> create(AudioContext* context)
+    {
+        return adoptRef(new AudioDestinationNode(context));        
+    }
+
+    virtual ~AudioDestinationNode();
+    
+    // AudioNode   
+    virtual void process(size_t) { }; // we're pulled by hardware so this is never called
+    virtual void reset() { m_currentTime = 0.0; };
+    virtual void initialize();
+    virtual void uninitialize();
+    
+    // The audio hardware calls here periodically to gets its input stream.
+    virtual void provideInput(AudioBus*, size_t numberOfFrames);
+
+    double currentTime() { return m_currentTime; }
+
+    double sampleRate() const { return m_destination->sampleRate(); }
+
+    unsigned numberOfChannels() const { return 2; } // FIXME: update when multi-channel (more than stereo) is supported
+    
+private:
+    AudioDestinationNode(AudioContext*);
+
+    OwnPtr<AudioDestination> m_destination;
+    double m_currentTime;
+};
+
+} // namespace WebCore
+
+#endif // AudioDestinationNode_h
-- 
cgit v1.1