зеркало из https://github.com/mozilla/gecko-dev.git
83 строки
1.6 KiB
C++
83 строки
1.6 KiB
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* vim:set ts=2 sw=2 sts=2 et cindent: */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#ifndef BiquadFilterNode_h_
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#define BiquadFilterNode_h_
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#include "AudioNode.h"
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#include "AudioParam.h"
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#include "mozilla/ErrorResult.h"
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#include "mozilla/TypedEnum.h"
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namespace mozilla {
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namespace dom {
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class AudioContext;
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MOZ_BEGIN_ENUM_CLASS(BiquadTypeEnum, uint16_t)
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LOWPASS = 0,
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HIGHPASS = 1,
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BANDPASS = 2,
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LOWSHELF = 3,
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HIGHSHELF = 4,
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PEAKING = 5,
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NOTCH = 6,
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ALLPASS = 7,
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Max = 7
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MOZ_END_ENUM_CLASS(BiquadTypeEnum)
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class BiquadFilterNode : public AudioNode
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{
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public:
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explicit BiquadFilterNode(AudioContext* aContext);
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NS_DECL_ISUPPORTS_INHERITED
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NS_DECL_CYCLE_COLLECTION_CLASS_INHERITED(BiquadFilterNode, AudioNode)
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virtual JSObject* WrapObject(JSContext* aCx, JSObject* aScope);
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uint16_t Type() const
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{
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return static_cast<uint16_t> (mType);
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}
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void SetType(uint16_t aType, ErrorResult& aRv)
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{
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BiquadTypeEnum type = static_cast<BiquadTypeEnum> (aType);
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if (type > BiquadTypeEnum::Max) {
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aRv.Throw(NS_ERROR_DOM_INDEX_SIZE_ERR);
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} else {
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mType = type;
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}
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}
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AudioParam* Frequency() const
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{
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return mFrequency;
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}
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AudioParam* Q() const
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{
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return mQ;
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}
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AudioParam* Gain() const
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{
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return mGain;
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}
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private:
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BiquadTypeEnum mType;
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nsRefPtr<AudioParam> mFrequency;
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nsRefPtr<AudioParam> mQ;
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nsRefPtr<AudioParam> mGain;
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};
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}
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}
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#endif
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