1/*
2 * Copyright (C) 2011, Google Inc. All rights reserved.
3 *
4 * Redistribution and use in source and binary forms, with or without
5 * modification, are permitted provided that the following conditions
6 * are met:
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.
12 *
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.
23 */
24
25#pragma once
26
27#include "AudioBasicProcessorNode.h"
28#include "WaveShaperProcessor.h"
29#include <wtf/Forward.h>
30
31namespace WebCore {
32
33class WaveShaperNode final : public AudioBasicProcessorNode {
34 WTF_MAKE_ISO_ALLOCATED(WaveShaperNode);
35public:
36 static Ref<WaveShaperNode> create(AudioContext& context)
37 {
38 return adoptRef(*new WaveShaperNode(context));
39 }
40
41 // setCurve() is called on the main thread.
42 void setCurve(Float32Array&);
43 Float32Array* curve();
44
45 enum class OverSampleType { None, _2x, _4x };
46 void setOversample(OverSampleType);
47 OverSampleType oversample() const;
48
49 double latency() const { return latencyTime(); }
50
51private:
52 explicit WaveShaperNode(AudioContext&);
53
54 WaveShaperProcessor* waveShaperProcessor() { return static_cast<WaveShaperProcessor*>(processor()); }
55};
56
57String convertEnumerationToString(WebCore::WaveShaperNode::OverSampleType); // in JSWaveShaperNode.cpp
58
59} // namespace WebCore
60
61namespace WTF {
62
63template<> struct LogArgument<WebCore::WaveShaperNode::OverSampleType> {
64 static String toString(WebCore::WaveShaperNode::OverSampleType type) { return convertEnumerationToString(type); }
65};
66
67} // namespace WTF
68