mirror of
https://github.com/mozilla/gecko-dev.git
synced 2024-11-01 14:45:29 +00:00
7127e8b159
Storing references on the AudioContext instead of on the AudioNodes will allow the AudioContext to report them to the cycle collector until offline rendering starts. --HG-- extra : transplant_source : %81%83Hp%F6T%E7%9EA%B3%D0%5Dz%EA%1FYv%A2%23%ED
141 lines
3.6 KiB
C++
141 lines
3.6 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 "AudioNode.h"
|
|
#include "AudioParam.h"
|
|
#include "PeriodicWave.h"
|
|
#include "mozilla/dom/OscillatorNodeBinding.h"
|
|
#include "mozilla/Preferences.h"
|
|
|
|
namespace mozilla {
|
|
namespace dom {
|
|
|
|
class AudioContext;
|
|
|
|
class OscillatorNode : public AudioNode,
|
|
public MainThreadMediaStreamListener
|
|
{
|
|
public:
|
|
explicit OscillatorNode(AudioContext* aContext);
|
|
virtual ~OscillatorNode();
|
|
|
|
NS_DECL_ISUPPORTS_INHERITED
|
|
NS_DECL_CYCLE_COLLECTION_CLASS_INHERITED(OscillatorNode, AudioNode)
|
|
|
|
virtual JSObject* WrapObject(JSContext* aCx,
|
|
JS::Handle<JSObject*> aScope) MOZ_OVERRIDE;
|
|
|
|
virtual void DestroyMediaStream() MOZ_OVERRIDE
|
|
{
|
|
if (mStream) {
|
|
mStream->RemoveMainThreadListener(this);
|
|
}
|
|
AudioNode::DestroyMediaStream();
|
|
}
|
|
virtual uint16_t NumberOfInputs() const MOZ_FINAL MOZ_OVERRIDE
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
OscillatorType Type() const
|
|
{
|
|
return mType;
|
|
}
|
|
void SetType(OscillatorType aType, ErrorResult& aRv)
|
|
{
|
|
if (!Preferences::GetBool("media.webaudio.legacy.OscillatorNode")) {
|
|
// Do not accept the alternate enum values unless the legacy pref
|
|
// has been turned on.
|
|
switch (aType) {
|
|
case OscillatorType::_0:
|
|
case OscillatorType::_1:
|
|
case OscillatorType::_2:
|
|
case OscillatorType::_3:
|
|
case OscillatorType::_4:
|
|
// Do nothing in order to emulate setting an invalid enum value.
|
|
return;
|
|
default:
|
|
// Shut up the compiler warning
|
|
break;
|
|
}
|
|
}
|
|
|
|
// Handle the alternate enum values
|
|
switch (aType) {
|
|
case OscillatorType::_0: aType = OscillatorType::Sine; break;
|
|
case OscillatorType::_1: aType = OscillatorType::Square; break;
|
|
case OscillatorType::_2: aType = OscillatorType::Sawtooth; break;
|
|
case OscillatorType::_3: aType = OscillatorType::Triangle; break;
|
|
case OscillatorType::_4: aType = OscillatorType::Custom; break;
|
|
default:
|
|
// Shut up the compiler warning
|
|
break;
|
|
}
|
|
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 NoteOn(double aWhen, ErrorResult& aRv)
|
|
{
|
|
Start(aWhen, aRv);
|
|
}
|
|
void Stop(double aWhen, ErrorResult& aRv);
|
|
void NoteOff(double aWhen, ErrorResult& aRv)
|
|
{
|
|
Stop(aWhen, aRv);
|
|
}
|
|
void SetPeriodicWave(PeriodicWave& aPeriodicWave)
|
|
{
|
|
mPeriodicWave = &aPeriodicWave;
|
|
// SendTypeToStream will call SendPeriodicWaveToStream for us.
|
|
mType = OscillatorType::Custom;
|
|
SendTypeToStream();
|
|
}
|
|
|
|
IMPL_EVENT_HANDLER(ended)
|
|
|
|
virtual void NotifyMainThreadStateChanged() MOZ_OVERRIDE;
|
|
|
|
private:
|
|
static void SendFrequencyToStream(AudioNode* aNode);
|
|
static void SendDetuneToStream(AudioNode* aNode);
|
|
void SendTypeToStream();
|
|
void SendPeriodicWaveToStream();
|
|
|
|
private:
|
|
OscillatorType mType;
|
|
nsRefPtr<PeriodicWave> mPeriodicWave;
|
|
nsRefPtr<AudioParam> mFrequency;
|
|
nsRefPtr<AudioParam> mDetune;
|
|
bool mStartCalled;
|
|
bool mStopped;
|
|
};
|
|
|
|
}
|
|
}
|
|
|
|
#endif
|
|
|