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65 lines
1.9 KiB
C++
65 lines
1.9 KiB
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* vim:set ts=2 sw=2 sts=2 et cindent: */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#include "AudioProcessingEvent.h"
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#include "mozilla/dom/AudioProcessingEventBinding.h"
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#include "mozilla/dom/ScriptSettings.h"
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#include "AudioContext.h"
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namespace mozilla {
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namespace dom {
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NS_IMPL_CYCLE_COLLECTION_INHERITED(AudioProcessingEvent, Event,
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mInputBuffer, mOutputBuffer, mNode)
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NS_INTERFACE_MAP_BEGIN_CYCLE_COLLECTION_INHERITED(AudioProcessingEvent)
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NS_INTERFACE_MAP_END_INHERITING(Event)
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NS_IMPL_ADDREF_INHERITED(AudioProcessingEvent, Event)
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NS_IMPL_RELEASE_INHERITED(AudioProcessingEvent, Event)
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AudioProcessingEvent::AudioProcessingEvent(ScriptProcessorNode* aOwner,
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nsPresContext* aPresContext,
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WidgetEvent* aEvent)
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: Event(aOwner, aPresContext, aEvent)
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, mPlaybackTime(0.0)
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, mNode(aOwner)
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{
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}
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AudioProcessingEvent::~AudioProcessingEvent()
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{
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}
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JSObject*
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AudioProcessingEvent::WrapObject(JSContext* aCx)
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{
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return AudioProcessingEventBinding::Wrap(aCx, this);
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}
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already_AddRefed<AudioBuffer>
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AudioProcessingEvent::LazilyCreateBuffer(uint32_t aNumberOfChannels,
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ErrorResult& aRv)
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{
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AutoJSAPI jsapi;
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if (NS_WARN_IF(!jsapi.Init(mNode->GetOwner()))) {
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aRv.Throw(NS_ERROR_UNEXPECTED);
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return nullptr;
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}
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JSContext* cx = jsapi.cx();
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nsRefPtr<AudioBuffer> buffer =
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AudioBuffer::Create(mNode->Context(), aNumberOfChannels,
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mNode->BufferSize(),
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mNode->Context()->SampleRate(), cx, aRv);
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MOZ_ASSERT(buffer || aRv.ErrorCode() == NS_ERROR_OUT_OF_MEMORY);
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return buffer.forget();
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}
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}
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}
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