1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/content/media/webaudio/BiquadFilterNode.h Wed Dec 31 06:09:35 2014 +0100
1.3 @@ -0,0 +1,85 @@
1.4 +/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
1.5 +/* vim:set ts=2 sw=2 sts=2 et cindent: */
1.6 +/* This Source Code Form is subject to the terms of the Mozilla Public
1.7 + * License, v. 2.0. If a copy of the MPL was not distributed with this
1.8 + * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
1.9 +
1.10 +#ifndef BiquadFilterNode_h_
1.11 +#define BiquadFilterNode_h_
1.12 +
1.13 +#include "AudioNode.h"
1.14 +#include "AudioParam.h"
1.15 +#include "mozilla/dom/BiquadFilterNodeBinding.h"
1.16 +
1.17 +namespace mozilla {
1.18 +namespace dom {
1.19 +
1.20 +class AudioContext;
1.21 +
1.22 +class BiquadFilterNode : public AudioNode
1.23 +{
1.24 +public:
1.25 + explicit BiquadFilterNode(AudioContext* aContext);
1.26 +
1.27 + NS_DECL_ISUPPORTS_INHERITED
1.28 + NS_DECL_CYCLE_COLLECTION_CLASS_INHERITED(BiquadFilterNode, AudioNode)
1.29 +
1.30 + virtual JSObject* WrapObject(JSContext* aCx) MOZ_OVERRIDE;
1.31 +
1.32 + BiquadFilterType Type() const
1.33 + {
1.34 + return mType;
1.35 + }
1.36 + void SetType(BiquadFilterType aType);
1.37 +
1.38 + AudioParam* Frequency() const
1.39 + {
1.40 + return mFrequency;
1.41 + }
1.42 +
1.43 + AudioParam* Detune() const
1.44 + {
1.45 + return mDetune;
1.46 + }
1.47 +
1.48 + AudioParam* Q() const
1.49 + {
1.50 + return mQ;
1.51 + }
1.52 +
1.53 + AudioParam* Gain() const
1.54 + {
1.55 + return mGain;
1.56 + }
1.57 +
1.58 + void GetFrequencyResponse(const Float32Array& aFrequencyHz,
1.59 + const Float32Array& aMagResponse,
1.60 + const Float32Array& aPhaseResponse);
1.61 +
1.62 + virtual const char* NodeType() const
1.63 + {
1.64 + return "BiquadFilterNode";
1.65 + }
1.66 +
1.67 + virtual size_t SizeOfExcludingThis(MallocSizeOf aMallocSizeOf) const MOZ_OVERRIDE;
1.68 + virtual size_t SizeOfIncludingThis(MallocSizeOf aMallocSizeOf) const MOZ_OVERRIDE;
1.69 +
1.70 +private:
1.71 + static void SendFrequencyToStream(AudioNode* aNode);
1.72 + static void SendDetuneToStream(AudioNode* aNode);
1.73 + static void SendQToStream(AudioNode* aNode);
1.74 + static void SendGainToStream(AudioNode* aNode);
1.75 +
1.76 +private:
1.77 + BiquadFilterType mType;
1.78 + nsRefPtr<AudioParam> mFrequency;
1.79 + nsRefPtr<AudioParam> mDetune;
1.80 + nsRefPtr<AudioParam> mQ;
1.81 + nsRefPtr<AudioParam> mGain;
1.82 +};
1.83 +
1.84 +}
1.85 +}
1.86 +
1.87 +#endif
1.88 +
