michael@0: /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
michael@0: /* vim:set ts=2 sw=2 sts=2 et cindent: */
michael@0: /* This Source Code Form is subject to the terms of the Mozilla Public
michael@0:  * License, v. 2.0. If a copy of the MPL was not distributed with this
michael@0:  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
michael@0: 
michael@0: #ifndef BiquadFilterNode_h_
michael@0: #define BiquadFilterNode_h_
michael@0: 
michael@0: #include "AudioNode.h"
michael@0: #include "AudioParam.h"
michael@0: #include "mozilla/dom/BiquadFilterNodeBinding.h"
michael@0: 
michael@0: namespace mozilla {
michael@0: namespace dom {
michael@0: 
michael@0: class AudioContext;
michael@0: 
michael@0: class BiquadFilterNode : public AudioNode
michael@0: {
michael@0: public:
michael@0:   explicit BiquadFilterNode(AudioContext* aContext);
michael@0: 
michael@0:   NS_DECL_ISUPPORTS_INHERITED
michael@0:   NS_DECL_CYCLE_COLLECTION_CLASS_INHERITED(BiquadFilterNode, AudioNode)
michael@0: 
michael@0:   virtual JSObject* WrapObject(JSContext* aCx) MOZ_OVERRIDE;
michael@0: 
michael@0:   BiquadFilterType Type() const
michael@0:   {
michael@0:     return mType;
michael@0:   }
michael@0:   void SetType(BiquadFilterType aType);
michael@0: 
michael@0:   AudioParam* Frequency() const
michael@0:   {
michael@0:     return mFrequency;
michael@0:   }
michael@0: 
michael@0:   AudioParam* Detune() const
michael@0:   {
michael@0:     return mDetune;
michael@0:   }
michael@0: 
michael@0:   AudioParam* Q() const
michael@0:   {
michael@0:     return mQ;
michael@0:   }
michael@0: 
michael@0:   AudioParam* Gain() const
michael@0:   {
michael@0:     return mGain;
michael@0:   }
michael@0: 
michael@0:   void GetFrequencyResponse(const Float32Array& aFrequencyHz,
michael@0:                             const Float32Array& aMagResponse,
michael@0:                             const Float32Array& aPhaseResponse);
michael@0: 
michael@0:   virtual const char* NodeType() const
michael@0:   {
michael@0:     return "BiquadFilterNode";
michael@0:   }
michael@0: 
michael@0:   virtual size_t SizeOfExcludingThis(MallocSizeOf aMallocSizeOf) const MOZ_OVERRIDE;
michael@0:   virtual size_t SizeOfIncludingThis(MallocSizeOf aMallocSizeOf) const MOZ_OVERRIDE;
michael@0: 
michael@0: private:
michael@0:   static void SendFrequencyToStream(AudioNode* aNode);
michael@0:   static void SendDetuneToStream(AudioNode* aNode);
michael@0:   static void SendQToStream(AudioNode* aNode);
michael@0:   static void SendGainToStream(AudioNode* aNode);
michael@0: 
michael@0: private:
michael@0:   BiquadFilterType mType;
michael@0:   nsRefPtr<AudioParam> mFrequency;
michael@0:   nsRefPtr<AudioParam> mDetune;
michael@0:   nsRefPtr<AudioParam> mQ;
michael@0:   nsRefPtr<AudioParam> mGain;
michael@0: };
michael@0: 
michael@0: }
michael@0: }
michael@0: 
michael@0: #endif
michael@0: