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The Tor Browser
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BiquadFilterNode.h (2233B)

      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 BiquadFilterNode_h_
      8 #define BiquadFilterNode_h_
      9 
     10 #include "AudioNode.h"
     11 #include "AudioParam.h"
     12 #include "mozilla/dom/BiquadFilterNodeBinding.h"
     13 
     14 namespace mozilla::dom {
     15 
     16 class AudioContext;
     17 struct BiquadFilterOptions;
     18 
     19 class BiquadFilterNode final : public AudioNode {
     20 public:
     21  static already_AddRefed<BiquadFilterNode> Create(
     22      AudioContext& aAudioContext, const BiquadFilterOptions& aOptions,
     23      ErrorResult& aRv);
     24 
     25  NS_DECL_ISUPPORTS_INHERITED
     26  NS_DECL_CYCLE_COLLECTION_CLASS_INHERITED(BiquadFilterNode, AudioNode)
     27 
     28  static already_AddRefed<BiquadFilterNode> Constructor(
     29      const GlobalObject& aGlobal, AudioContext& aAudioContext,
     30      const BiquadFilterOptions& aOptions, ErrorResult& aRv) {
     31    return Create(aAudioContext, aOptions, aRv);
     32  }
     33 
     34  JSObject* WrapObject(JSContext* aCx,
     35                       JS::Handle<JSObject*> aGivenProto) override;
     36 
     37  BiquadFilterType Type() const { return mType; }
     38  void SetType(BiquadFilterType aType);
     39 
     40  AudioParam* Frequency() const { return mFrequency; }
     41 
     42  AudioParam* Detune() const { return mDetune; }
     43 
     44  AudioParam* Q() const { return mQ; }
     45 
     46  AudioParam* Gain() const { return mGain; }
     47 
     48  void GetFrequencyResponse(const Float32Array& aFrequencyHz,
     49                            const Float32Array& aMagResponse,
     50                            const Float32Array& aPhaseResponse,
     51                            ErrorResult& aRv);
     52 
     53  const char* NodeType() const override { return "BiquadFilterNode"; }
     54 
     55  size_t SizeOfExcludingThis(MallocSizeOf aMallocSizeOf) const override;
     56  size_t SizeOfIncludingThis(MallocSizeOf aMallocSizeOf) const override;
     57 
     58 private:
     59  explicit BiquadFilterNode(AudioContext* aContext);
     60  ~BiquadFilterNode() = default;
     61 
     62  BiquadFilterType mType;
     63  RefPtr<AudioParam> mFrequency;
     64  RefPtr<AudioParam> mDetune;
     65  RefPtr<AudioParam> mQ;
     66  RefPtr<AudioParam> mGain;
     67 };
     68 
     69 }  // namespace mozilla::dom
     70 
     71 #endif