Merge WebKit at r70209: Initial merge by Git

Change-Id: Id23a68efa36e9d1126bcce0b137872db00892c8e

1 files changed, 56 insertions, 0 deletions

diff --git a/WebCore/webaudio/BiquadDSPKernel.h b/WebCore/webaudio/BiquadDSPKernel.h
new file mode 100644
index 0000000..47d0f34
--- /dev/null
+++ b/WebCore/webaudio/BiquadDSPKernel.h
@@ -0,0 +1,56 @@
+/*
+ * 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.
+ *
+ * THIS SOFTWARE IS PROVIDED BY APPLE INC. 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 INC. 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 BiquadDSPKernel_h
+#define BiquadDSPKernel_h
+
+#include "AudioDSPKernel.h"
+#include "Biquad.h"
+#include "BiquadProcessor.h"
+
+namespace WebCore {
+
+class BiquadProcessor;
+
+// BiquadDSPKernel is an AudioDSPKernel and is responsible for filtering one channel of a BiquadProcessor using a Biquad object.
+
+class BiquadDSPKernel : public AudioDSPKernel {
+public:  
+    BiquadDSPKernel(BiquadProcessor* processor)
+    : AudioDSPKernel(processor)
+    {
+    }
+    
+    // AudioDSPKernel
+    virtual void process(const float* source, float* dest, size_t framesToProcess);
+    virtual void reset() { m_biquad.reset(); }
+    
+protected:
+    Biquad m_biquad;
+    BiquadProcessor* biquadProcessor() { return static_cast<BiquadProcessor*>(processor()); }
+};
+
+} // namespace WebCore
+
+#endif // BiquadDSPKernel_h