1 /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ 2 /* vim:set ts=2 sw=2 sts=2 et cindent: */ 3 /* This Source Code Form is subject to the terms of the Mozilla Public 4 * License, v. 2.0. If a copy of the MPL was not distributed with this 5 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ 6 7 #ifndef IIRFilterNode_h_ 8 #define IIRFilterNode_h_ 9 10 #include "AudioNode.h" 11 #include "AudioParam.h" 12 #include "mozilla/dom/IIRFilterNodeBinding.h" 13 14 namespace mozilla { 15 namespace dom { 16 17 class AudioContext; 18 struct IIRFilterOptions; 19 20 class IIRFilterNode final : public AudioNode { 21 public: 22 static already_AddRefed<IIRFilterNode> Create( 23 AudioContext& aAudioContext, const IIRFilterOptions& aOptions, 24 ErrorResult& aRv); 25 NS_INLINE_DECL_REFCOUNTING_INHERITED(IIRFilterNode,AudioNode)26 NS_INLINE_DECL_REFCOUNTING_INHERITED(IIRFilterNode, AudioNode) 27 28 static already_AddRefed<IIRFilterNode> Constructor( 29 const GlobalObject& aGlobal, AudioContext& aAudioContext, 30 const IIRFilterOptions& aOptions, ErrorResult& aRv) { 31 return Create(aAudioContext, aOptions, aRv); 32 } 33 34 JSObject* WrapObject(JSContext* aCx, 35 JS::Handle<JSObject*> aGivenProto) override; 36 37 void GetFrequencyResponse(const Float32Array& aFrequencyHz, 38 const Float32Array& aMagResponse, 39 const Float32Array& aPhaseResponse); 40 NodeType()41 const char* NodeType() const override { return "IIRFilterNode"; } 42 43 size_t SizeOfExcludingThis(MallocSizeOf aMallocSizeOf) const override; 44 size_t SizeOfIncludingThis(MallocSizeOf aMallocSizeOf) const override; 45 46 private: 47 IIRFilterNode(AudioContext* aContext, const Sequence<double>& aFeedforward, 48 const Sequence<double>& aFeedback); 49 ~IIRFilterNode() = default; 50 51 nsTArray<double> mFeedback; 52 nsTArray<double> mFeedforward; 53 }; 54 55 } // namespace dom 56 } // namespace mozilla 57 58 #endif 59