WaveShaperNode.h - mozsearch

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/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */

/* vim:set ts=2 sw=2 sts=2 et cindent: */

/* This Source Code Form is subject to the terms of the Mozilla Public

 * License, v. 2.0. If a copy of the MPL was not distributed with this

 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */

#ifndef WaveShaperNode_h_

#define WaveShaperNode_h_

#include "AudioNode.h"

#include "mozilla/dom/WaveShaperNodeBinding.h"

#include "mozilla/dom/TypedArray.h"

namespace mozilla::dom {

class AudioContext;

struct WaveShaperOptions;

class WaveShaperNode final : public AudioNode {

 public:

  static already_AddRefed<WaveShaperNode> Create(

      AudioContext& aAudioContext, const WaveShaperOptions& aOptions,

      ErrorResult& aRv);

  NS_DECL_ISUPPORTS_INHERITED

  NS_DECL_CYCLE_COLLECTION_SCRIPT_HOLDER_CLASS_INHERITED(WaveShaperNode,

                                                         AudioNode)

  static already_AddRefed<WaveShaperNode> Constructor(

      const GlobalObject& aGlobal, AudioContext& aAudioContext,

      const WaveShaperOptions& aOptions, ErrorResult& aRv) {

    return Create(aAudioContext, aOptions, aRv);

  JSObject* WrapObject(JSContext* aCx,

                       JS::Handle<JSObject*> aGivenProto) override;

  void GetCurve(JSContext* aCx, JS::MutableHandle<JSObject*> aRetval,

                ErrorResult& aRv);

  void SetCurve(const Nullable<Float32Array>& aData, ErrorResult& aRv);

  OverSampleType Oversample() const { return mType; }

  void SetOversample(OverSampleType aType);

  size_t SizeOfExcludingThis(MallocSizeOf aMallocSizeOf) const override {

    // Possibly track in the future:

    // - mCurve

    return AudioNode::SizeOfExcludingThis(aMallocSizeOf);

  const char* NodeType() const override { return "WaveShaperNode"; }

  size_t SizeOfIncludingThis(MallocSizeOf aMallocSizeOf) const override {

    return aMallocSizeOf(this) + SizeOfExcludingThis(aMallocSizeOf);

 private:

  explicit WaveShaperNode(AudioContext* aContext);

  ~WaveShaperNode() = default;

  void SetCurveInternal(const nsTArray<float>& aCurve, ErrorResult& aRv);

  void CleanCurveInternal();

  void SendCurveToTrack();

  nsTArray<float> mCurve;

  OverSampleType mType;

};

}  // namespace mozilla::dom

#endif