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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 OscillatorNode_h_
#define OscillatorNode_h_
#include "AudioScheduledSourceNode.h"
#include "AudioParam.h"
#include "PeriodicWave.h"
#include "mozilla/dom/OscillatorNodeBinding.h"
namespace mozilla::dom {
class AudioContext;
struct OscillatorOptions;
class OscillatorNode final : public AudioScheduledSourceNode,
public MainThreadMediaTrackListener {
public:
static already_AddRefed<OscillatorNode> Create(
AudioContext& aAudioContext, const OscillatorOptions& aOptions,
ErrorResult& aRv);
NS_DECL_ISUPPORTS_INHERITED
NS_DECL_CYCLE_COLLECTION_CLASS_INHERITED(OscillatorNode,
AudioScheduledSourceNode)
static already_AddRefed<OscillatorNode> Constructor(
const GlobalObject& aGlobal, AudioContext& aAudioContext,
const OscillatorOptions& aOptions, ErrorResult& aRv) {
return Create(aAudioContext, aOptions, aRv);
}
JSObject* WrapObject(JSContext* aCx,
JS::Handle<JSObject*> aGivenProto) override;
void DestroyMediaTrack() override;
uint16_t NumberOfInputs() const final { return 0; }
OscillatorType Type() const { return mType; }
void SetType(OscillatorType aType, ErrorResult& aRv) {
if (aType == OscillatorType::Custom) {
// ::Custom can only be set by setPeriodicWave().
// https://github.com/WebAudio/web-audio-api/issues/105 for exception.
aRv.ThrowInvalidStateError("Can't set type to \"custom\"");
return;
}
mType = aType;
SendTypeToTrack();
}
AudioParam* Frequency() const { return mFrequency; }
AudioParam* Detune() const { return mDetune; }
void Start(double aWhen, ErrorResult& aRv) override;
void Stop(double aWhen, ErrorResult& aRv) override;
void SetPeriodicWave(PeriodicWave& aPeriodicWave) {
mPeriodicWave = &aPeriodicWave;
// SendTypeToTrack will call SendPeriodicWaveToTrack for us.
mType = OscillatorType::Custom;
SendTypeToTrack();
}
void NotifyMainThreadTrackEnded() override;
const char* NodeType() const override { return "OscillatorNode"; }
size_t SizeOfExcludingThis(MallocSizeOf aMallocSizeOf) const override;
size_t SizeOfIncludingThis(MallocSizeOf aMallocSizeOf) const override;
private:
explicit OscillatorNode(AudioContext* aContext);
~OscillatorNode() = default;
void SendTypeToTrack();
void SendPeriodicWaveToTrack();
OscillatorType mType;
RefPtr<PeriodicWave> mPeriodicWave;
RefPtr<AudioParam> mFrequency;
RefPtr<AudioParam> mDetune;
bool mStartCalled;
};
} // namespace mozilla::dom
#endif
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