1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/content/media/webaudio/AudioProcessingEvent.cpp Wed Dec 31 06:09:35 2014 +0100
1.3 @@ -0,0 +1,54 @@
1.4 +/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
1.5 +/* vim:set ts=2 sw=2 sts=2 et cindent: */
1.6 +/* This Source Code Form is subject to the terms of the Mozilla Public
1.7 + * License, v. 2.0. If a copy of the MPL was not distributed with this
1.8 + * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
1.9 +
1.10 +#include "AudioProcessingEvent.h"
1.11 +#include "mozilla/dom/AudioProcessingEventBinding.h"
1.12 +#include "AudioContext.h"
1.13 +
1.14 +namespace mozilla {
1.15 +namespace dom {
1.16 +
1.17 +NS_IMPL_CYCLE_COLLECTION_INHERITED(AudioProcessingEvent, Event,
1.18 + mInputBuffer, mOutputBuffer, mNode)
1.19 +
1.20 +NS_INTERFACE_MAP_BEGIN_CYCLE_COLLECTION_INHERITED(AudioProcessingEvent)
1.21 +NS_INTERFACE_MAP_END_INHERITING(Event)
1.22 +
1.23 +NS_IMPL_ADDREF_INHERITED(AudioProcessingEvent, Event)
1.24 +NS_IMPL_RELEASE_INHERITED(AudioProcessingEvent, Event)
1.25 +
1.26 +AudioProcessingEvent::AudioProcessingEvent(ScriptProcessorNode* aOwner,
1.27 + nsPresContext* aPresContext,
1.28 + WidgetEvent* aEvent)
1.29 + : Event(aOwner, aPresContext, aEvent)
1.30 + , mPlaybackTime(0.0)
1.31 + , mNode(aOwner)
1.32 +{
1.33 + SetIsDOMBinding();
1.34 +}
1.35 +
1.36 +JSObject*
1.37 +AudioProcessingEvent::WrapObject(JSContext* aCx)
1.38 +{
1.39 + return AudioProcessingEventBinding::Wrap(aCx, this);
1.40 +}
1.41 +
1.42 +already_AddRefed<AudioBuffer>
1.43 +AudioProcessingEvent::LazilyCreateBuffer(uint32_t aNumberOfChannels,
1.44 + ErrorResult& aRv)
1.45 +{
1.46 + AutoPushJSContext cx(mNode->Context()->GetJSContext());
1.47 + nsRefPtr<AudioBuffer> buffer =
1.48 + AudioBuffer::Create(mNode->Context(), aNumberOfChannels,
1.49 + mNode->BufferSize(),
1.50 + mNode->Context()->SampleRate(), cx, aRv);
1.51 + MOZ_ASSERT(buffer || aRv.ErrorCode() == NS_ERROR_OUT_OF_MEMORY);
1.52 + return buffer.forget();
1.53 +}
1.54 +
1.55 +}
1.56 +}
1.57 +
