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WaveShaperNode

Macros

Line Code
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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 {
namespace 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);
  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 SendCurveToStream();

  nsTArray<float> mCurve;
  OverSampleType mType;
};

} // namespace dom
} // namespace mozilla

#endif