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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 AudioBufferSourceNode_h_
#define AudioBufferSourceNode_h_
#include "AudioNode.h"
#include "AudioBuffer.h"
namespace mozilla {
namespace dom {
class AudioParam;
class AudioBufferSourceNode final : public AudioNode,
public MainThreadMediaStreamListener
{
public:
explicit AudioBufferSourceNode(AudioContext* aContext);
void DestroyMediaStream() override;
uint16_t NumberOfInputs() const final override
{
return 0;
}
AudioBufferSourceNode* AsAudioBufferSourceNode() override
{
return this;
}
NS_DECL_ISUPPORTS_INHERITED
NS_DECL_CYCLE_COLLECTION_CLASS_INHERITED(AudioBufferSourceNode, AudioNode)
JSObject* WrapObject(JSContext* aCx, JS::Handle<JSObject*> aGivenProto) override;
void Start(double aWhen, double aOffset,
const Optional<double>& aDuration, ErrorResult& aRv);
void Stop(double aWhen, ErrorResult& aRv);
AudioBuffer* GetBuffer(JSContext* aCx) const
{
return mBuffer;
}
void SetBuffer(JSContext* aCx, AudioBuffer* aBuffer)
{
mBuffer = aBuffer;
SendBufferParameterToStream(aCx);
SendLoopParametersToStream();
}
AudioParam* PlaybackRate() const
{
return mPlaybackRate;
}
AudioParam* Detune() const
{
return mDetune;
}
bool Loop() const
{
return mLoop;
}
void SetLoop(bool aLoop)
{
mLoop = aLoop;
SendLoopParametersToStream();
}
double LoopStart() const
{
return mLoopStart;
}
void SetLoopStart(double aStart)
{
mLoopStart = aStart;
SendLoopParametersToStream();
}
double LoopEnd() const
{
return mLoopEnd;
}
void SetLoopEnd(double aEnd)
{
mLoopEnd = aEnd;
SendLoopParametersToStream();
}
void SendDopplerShiftToStream(double aDopplerShift);
IMPL_EVENT_HANDLER(ended)
void NotifyMainThreadStreamFinished() override;
const char* NodeType() const override
{
return "AudioBufferSourceNode";
}
size_t SizeOfExcludingThis(MallocSizeOf aMallocSizeOf) const override;
size_t SizeOfIncludingThis(MallocSizeOf aMallocSizeOf) const override;
protected:
virtual ~AudioBufferSourceNode();
private:
friend class AudioBufferSourceNodeEngine;
// START is sent during Start().
// STOP is sent during Stop().
// BUFFERSTART and BUFFEREND are sent when SetBuffer() and Start() have
// been called (along with sending the buffer).
enum EngineParameters {
SAMPLE_RATE,
START,
STOP,
// BUFFERSTART is the "offset" passed to start(), multiplied by
// buffer.sampleRate.
BUFFERSTART,
// BUFFEREND is the sum of "offset" and "duration" passed to start(),
// multiplied by buffer.sampleRate, or the size of the buffer, if smaller.
BUFFEREND,
LOOP,
LOOPSTART,
LOOPEND,
PLAYBACKRATE,
DETUNE,
DOPPLERSHIFT
};
void SendLoopParametersToStream();
void SendBufferParameterToStream(JSContext* aCx);
void SendOffsetAndDurationParametersToStream(AudioNodeStream* aStream);
private:
double mLoopStart;
double mLoopEnd;
double mOffset;
double mDuration;
RefPtr<AudioBuffer> mBuffer;
RefPtr<AudioParam> mPlaybackRate;
RefPtr<AudioParam> mDetune;
bool mLoop;
bool mStartCalled;
};
} // namespace dom
} // namespace mozilla
#endif
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