зеркало из https://github.com/mozilla/gecko-dev.git
112 строки
2.9 KiB
C++
112 строки
2.9 KiB
C++
/* -*- 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 {
|
|
namespace dom {
|
|
|
|
class AudioContext;
|
|
struct OscillatorOptions;
|
|
|
|
class OscillatorNode final : public AudioScheduledSourceNode
|
|
, public MainThreadMediaStreamListener
|
|
{
|
|
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 DestroyMediaStream() override;
|
|
|
|
uint16_t NumberOfInputs() const final override
|
|
{
|
|
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.Throw(NS_ERROR_DOM_INVALID_STATE_ERR);
|
|
return;
|
|
}
|
|
mType = aType;
|
|
SendTypeToStream();
|
|
}
|
|
|
|
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;
|
|
// SendTypeToStream will call SendPeriodicWaveToStream for us.
|
|
mType = OscillatorType::Custom;
|
|
SendTypeToStream();
|
|
}
|
|
|
|
void NotifyMainThreadStreamFinished() 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 SendTypeToStream();
|
|
void SendPeriodicWaveToStream();
|
|
|
|
OscillatorType mType;
|
|
RefPtr<PeriodicWave> mPeriodicWave;
|
|
RefPtr<AudioParam> mFrequency;
|
|
RefPtr<AudioParam> mDetune;
|
|
bool mStartCalled;
|
|
};
|
|
|
|
} // namespace dom
|
|
} // namespace mozilla
|
|
|
|
#endif
|