2 * Copyright (C) 2010, Google Inc. All rights reserved.
4 * Redistribution and use in source and binary forms, with or without
5 * modification, are permitted provided that the following conditions
7 * 1. Redistributions of source code must retain the above copyright
8 * notice, this list of conditions and the following disclaimer.
9 * 2. Redistributions in binary form must reproduce the above copyright
10 * notice, this list of conditions and the following disclaimer in the
11 * documentation and/or other materials provided with the distribution.
13 * THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS'' AND ANY
14 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
15 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
16 * DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS BE LIABLE FOR ANY
17 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
18 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
19 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
20 * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
21 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
22 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
25 #ifndef LowPass2FilterNode_h
26 #define LowPass2FilterNode_h
28 #include "AudioBasicProcessorNode.h"
29 #include "BiquadProcessor.h"
35 class LowPass2FilterNode : public AudioBasicProcessorNode {
37 static PassRefPtr<LowPass2FilterNode> create(AudioContext* context, double sampleRate)
39 return adoptRef(new LowPass2FilterNode(context, sampleRate));
42 AudioParam* cutoff() { return biquadProcessor()->parameter1(); }
43 AudioParam* resonance() { return biquadProcessor()->parameter2(); }
46 LowPass2FilterNode(AudioContext*, double sampleRate);
48 BiquadProcessor* biquadProcessor() { return static_cast<BiquadProcessor*>(processor()); }
51 } // namespace WebCore
53 #endif // LowPass2FilterNode_h