1 files changed, 76 insertions, 0 deletions
diff --git a/Source/WebCore/webaudio/RealtimeAnalyserNode.h b/Source/WebCore/webaudio/RealtimeAnalyserNode.h
new file mode 100644
index 0000000..9f62464
--- /dev/null
+++ b/Source/WebCore/webaudio/RealtimeAnalyserNode.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.
+ *
+ * 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 RealtimeAnalyserNode_h
+#define RealtimeAnalyserNode_h
+
+#include "AudioNode.h"
+#include "RealtimeAnalyser.h"
+
+namespace WebCore {
+
+class RealtimeAnalyserNode : public AudioNode {
+public:
+    static PassRefPtr<RealtimeAnalyserNode> create(AudioContext* context, double sampleRate)
+    {
+        return adoptRef(new RealtimeAnalyserNode(context, sampleRate));      
+    }
+
+    virtual ~RealtimeAnalyserNode();
+    
+    // AudioNode
+    virtual void process(size_t framesToProcess);
+    virtual void pullInputs(size_t framesToProcess);
+    virtual void reset();
+
+    // Javascript bindings
+    unsigned int fftSize() const { return m_analyser.fftSize(); }
+    void setFftSize(unsigned int size) { m_analyser.setFftSize(size); }
+
+    unsigned frequencyBinCount() const { return m_analyser.frequencyBinCount(); }
+
+    void setMinDecibels(float k) { m_analyser.setMinDecibels(k); }
+    float minDecibels() const { return m_analyser.minDecibels(); }
+
+    void setMaxDecibels(float k) { m_analyser.setMaxDecibels(k); }
+    float maxDecibels() const { return m_analyser.maxDecibels(); }
+
+    void setSmoothingTimeConstant(float k) { m_analyser.setSmoothingTimeConstant(k); }
+    float smoothingTimeConstant() const { return m_analyser.smoothingTimeConstant(); }
+
+#if ENABLE(3D_CANVAS)
+    void getFloatFrequencyData(Float32Array* array) { m_analyser.getFloatFrequencyData(array); }
+    void getByteFrequencyData(Uint8Array* array) { m_analyser.getByteFrequencyData(array); }
+    void getByteTimeDomainData(Uint8Array* array) { m_analyser.getByteTimeDomainData(array); }
+#endif
+
+private:
+    RealtimeAnalyserNode(AudioContext*, double sampleRate);
+
+    RealtimeAnalyser m_analyser;
+};
+
+} // namespace WebCore
+
+#endif // RealtimeAnalyserNode_h