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import FIREFOX_52_6_0esr_RELEASE from mozilla-esr52 hg repo

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Roy Tam 2018-01-19 03:59:58 +08:00
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147
dom/media/webaudio/ScriptProcessorNode.h Normal file
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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 ScriptProcessorNode_h_
#define ScriptProcessorNode_h_
#include "AudioNode.h"
namespace mozilla {
namespace dom {
class AudioContext;
class SharedBuffers;
class ScriptProcessorNode final : public AudioNode
{
public:
ScriptProcessorNode(AudioContext* aContext,
uint32_t aBufferSize,
uint32_t aNumberOfInputChannels,
uint32_t aNumberOfOutputChannels);
NS_DECL_ISUPPORTS_INHERITED
IMPL_EVENT_HANDLER(audioprocess)
void EventListenerAdded(nsIAtom* aType) override;
void EventListenerRemoved(nsIAtom* aType) override;
JSObject* WrapObject(JSContext* aCx, JS::Handle<JSObject*> aGivenProto) override;
AudioNode* Connect(AudioNode& aDestination, uint32_t aOutput,
uint32_t aInput, ErrorResult& aRv) override
{
AudioNode* node = AudioNode::Connect(aDestination, aOutput, aInput, aRv);
if (!aRv.Failed()) {
UpdateConnectedStatus();
}
return node;
}
void Connect(AudioParam& aDestination, uint32_t aOutput,
ErrorResult& aRv) override
{
AudioNode::Connect(aDestination, aOutput, aRv);
if (!aRv.Failed()) {
UpdateConnectedStatus();
}
}
void Disconnect(ErrorResult& aRv) override
{
AudioNode::Disconnect(aRv);
UpdateConnectedStatus();
}
void Disconnect(uint32_t aOutput, ErrorResult& aRv) override
{
AudioNode::Disconnect(aOutput, aRv);
UpdateConnectedStatus();
}
void NotifyInputsChanged() override
{
UpdateConnectedStatus();
}
void NotifyHasPhantomInput() override
{
mHasPhantomInput = true;
// No need to UpdateConnectedStatus() because there was previously an
// input in InputNodes().
}
void Disconnect(AudioNode& aDestination, ErrorResult& aRv) override
{
AudioNode::Disconnect(aDestination, aRv);
UpdateConnectedStatus();
}
void Disconnect(AudioNode& aDestination, uint32_t aOutput, ErrorResult& aRv) override
{
AudioNode::Disconnect(aDestination, aOutput, aRv);
UpdateConnectedStatus();
}
void Disconnect(AudioNode& aDestination, uint32_t aOutput, uint32_t aInput, ErrorResult& aRv) override
{
AudioNode::Disconnect(aDestination, aOutput, aInput, aRv);
UpdateConnectedStatus();
}
void Disconnect(AudioParam& aDestination, ErrorResult& aRv) override
{
AudioNode::Disconnect(aDestination, aRv);
UpdateConnectedStatus();
}
void Disconnect(AudioParam& aDestination, uint32_t aOutput, ErrorResult& aRv) override
{
AudioNode::Disconnect(aDestination, aOutput, aRv);
UpdateConnectedStatus();
}
void SetChannelCount(uint32_t aChannelCount, ErrorResult& aRv) override
{
if (aChannelCount != ChannelCount()) {
aRv.Throw(NS_ERROR_DOM_NOT_SUPPORTED_ERR);
}
return;
}
void SetChannelCountModeValue(ChannelCountMode aMode, ErrorResult& aRv) override
{
if (aMode != ChannelCountMode::Explicit) {
aRv.Throw(NS_ERROR_DOM_NOT_SUPPORTED_ERR);
}
return;
}
uint32_t BufferSize() const
{
return mBufferSize;
}
uint32_t NumberOfOutputChannels() const
{
return mNumberOfOutputChannels;
}
using DOMEventTargetHelper::DispatchTrustedEvent;
const char* NodeType() const override
{
return "ScriptProcessorNode";
}
size_t SizeOfExcludingThis(MallocSizeOf aMallocSizeOf) const override;
size_t SizeOfIncludingThis(MallocSizeOf aMallocSizeOf) const override;
private:
virtual ~ScriptProcessorNode();
void UpdateConnectedStatus();
const uint32_t mBufferSize;
const uint32_t mNumberOfOutputChannels;
bool mHasPhantomInput = false;
};
} // namespace dom
} // namespace mozilla
#endif