gecko/content/media/webaudio/AudioProcessingEvent.cpp

53 lines
1.7 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/. */
#include "AudioProcessingEvent.h"
#include "mozilla/dom/AudioProcessingEventBinding.h"
namespace mozilla {
namespace dom {
NS_IMPL_CYCLE_COLLECTION_INHERITED_3(AudioProcessingEvent, nsDOMEvent,
mInputBuffer, mOutputBuffer, mNode)
NS_INTERFACE_MAP_BEGIN_CYCLE_COLLECTION_INHERITED(AudioProcessingEvent)
NS_INTERFACE_MAP_END_INHERITING(nsDOMEvent)
NS_IMPL_ADDREF_INHERITED(AudioProcessingEvent, nsDOMEvent)
NS_IMPL_RELEASE_INHERITED(AudioProcessingEvent, nsDOMEvent)
AudioProcessingEvent::AudioProcessingEvent(ScriptProcessorNode* aOwner,
nsPresContext* aPresContext,
nsEvent* aEvent)
: nsDOMEvent(aOwner, aPresContext, aEvent)
, mPlaybackTime(0.0)
, mNode(aOwner)
{
SetIsDOMBinding();
}
JSObject*
AudioProcessingEvent::WrapObject(JSContext* aCx, JSObject* aScope)
{
return AudioProcessingEventBinding::Wrap(aCx, aScope, this);
}
void
AudioProcessingEvent::LazilyCreateBuffer(nsRefPtr<AudioBuffer>& aBuffer,
uint32_t aNumberOfChannels)
{
AutoPushJSContext cx(mNode->Context()->GetJSContext());
JSAutoRequest ar(cx);
aBuffer = new AudioBuffer(mNode->Context(), mNode->BufferSize(),
mNode->Context()->SampleRate());
aBuffer->InitializeBuffers(aNumberOfChannels, cx);
}
}
}