1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/content/media/webaudio/AudioProcessingEvent.h Wed Dec 31 06:09:35 2014 +0100
1.3 @@ -0,0 +1,82 @@
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 +#ifndef AudioProcessingEvent_h_
1.11 +#define AudioProcessingEvent_h_
1.12 +
1.13 +#include "AudioBuffer.h"
1.14 +#include "ScriptProcessorNode.h"
1.15 +#include "mozilla/dom/Event.h"
1.16 +
1.17 +namespace mozilla {
1.18 +namespace dom {
1.19 +
1.20 +class AudioProcessingEvent : public Event
1.21 +{
1.22 +public:
1.23 + AudioProcessingEvent(ScriptProcessorNode* aOwner,
1.24 + nsPresContext* aPresContext,
1.25 + WidgetEvent* aEvent);
1.26 +
1.27 + NS_DECL_ISUPPORTS_INHERITED
1.28 + NS_FORWARD_TO_EVENT
1.29 + NS_DECL_CYCLE_COLLECTION_CLASS_INHERITED(AudioProcessingEvent, Event)
1.30 +
1.31 + virtual JSObject* WrapObject(JSContext* aCx) MOZ_OVERRIDE;
1.32 +
1.33 + void InitEvent(AudioBuffer* aInputBuffer,
1.34 + uint32_t aNumberOfInputChannels,
1.35 + double aPlaybackTime)
1.36 + {
1.37 + InitEvent(NS_LITERAL_STRING("audioprocess"), false, false);
1.38 + mInputBuffer = aInputBuffer;
1.39 + mNumberOfInputChannels = aNumberOfInputChannels;
1.40 + mPlaybackTime = aPlaybackTime;
1.41 + }
1.42 +
1.43 + double PlaybackTime() const
1.44 + {
1.45 + return mPlaybackTime;
1.46 + }
1.47 +
1.48 + AudioBuffer* GetInputBuffer(ErrorResult& aRv)
1.49 + {
1.50 + if (!mInputBuffer) {
1.51 + mInputBuffer = LazilyCreateBuffer(mNumberOfInputChannels, aRv);
1.52 + }
1.53 + return mInputBuffer;
1.54 + }
1.55 +
1.56 + AudioBuffer* GetOutputBuffer(ErrorResult& aRv)
1.57 + {
1.58 + if (!mOutputBuffer) {
1.59 + mOutputBuffer = LazilyCreateBuffer(mNode->NumberOfOutputChannels(), aRv);
1.60 + }
1.61 + return mOutputBuffer;
1.62 + }
1.63 +
1.64 + bool HasOutputBuffer() const
1.65 + {
1.66 + return !!mOutputBuffer;
1.67 + }
1.68 +
1.69 +private:
1.70 + already_AddRefed<AudioBuffer>
1.71 + LazilyCreateBuffer(uint32_t aNumberOfChannels, ErrorResult& rv);
1.72 +
1.73 +private:
1.74 + double mPlaybackTime;
1.75 + nsRefPtr<AudioBuffer> mInputBuffer;
1.76 + nsRefPtr<AudioBuffer> mOutputBuffer;
1.77 + nsRefPtr<ScriptProcessorNode> mNode;
1.78 + uint32_t mNumberOfInputChannels;
1.79 +};
1.80 +
1.81 +}
1.82 +}
1.83 +
1.84 +#endif
1.85 +
