/* -*- 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 "AudioNode.h" #include "AudioParam.h" #include "PeriodicWave.h" #include "mozilla/dom/OscillatorNodeBinding.h" namespace mozilla { namespace dom { class AudioContext; class OscillatorNode final : public AudioNode, public MainThreadMediaStreamListener { public: explicit OscillatorNode(AudioContext* aContext); NS_DECL_ISUPPORTS_INHERITED NS_DECL_CYCLE_COLLECTION_CLASS_INHERITED(OscillatorNode, AudioNode) 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); void Stop(double aWhen, ErrorResult& aRv); void SetPeriodicWave(PeriodicWave& aPeriodicWave) { mPeriodicWave = &aPeriodicWave; // SendTypeToStream will call SendPeriodicWaveToStream for us. mType = OscillatorType::Custom; SendTypeToStream(); } IMPL_EVENT_HANDLER(ended) void NotifyMainThreadStreamFinished() override; const char* NodeType() const override { return "OscillatorNode"; } size_t SizeOfExcludingThis(MallocSizeOf aMallocSizeOf) const override; size_t SizeOfIncludingThis(MallocSizeOf aMallocSizeOf) const override; protected: virtual ~OscillatorNode(); private: void SendTypeToStream(); void SendPeriodicWaveToStream(); private: OscillatorType mType; RefPtr<PeriodicWave> mPeriodicWave; RefPtr<AudioParam> mFrequency; RefPtr<AudioParam> mDetune; bool mStartCalled; }; } // namespace dom } // namespace mozilla #endif