зеркало из https://github.com/mozilla/gecko-dev.git
112 строки
3.7 KiB
C++
112 строки
3.7 KiB
C++
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* vim: set ts=8 sts=2 et sw=2 tw=80: */
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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 https://mozilla.org/MPL/2.0/. */
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#include "AudioWorkletNode.h"
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#include "AudioParamMap.h"
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#include "mozilla/dom/AudioWorkletNodeBinding.h"
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#include "mozilla/dom/MessagePort.h"
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namespace mozilla {
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namespace dom {
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NS_IMPL_ISUPPORTS_CYCLE_COLLECTION_INHERITED_0(AudioWorkletNode, AudioNode)
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AudioWorkletNode::AudioWorkletNode(AudioContext* aAudioContext,
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const nsAString& aName,
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const AudioWorkletNodeOptions& aOptions)
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: AudioNode(aAudioContext, 2, ChannelCountMode::Max,
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ChannelInterpretation::Speakers),
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mNodeName(aName),
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mInputCount(aOptions.mNumberOfInputs),
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mOutputCount(aOptions.mNumberOfOutputs) {}
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/* static */
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already_AddRefed<AudioWorkletNode> AudioWorkletNode::Constructor(
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const GlobalObject& aGlobal, AudioContext& aAudioContext,
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const nsAString& aName, const AudioWorkletNodeOptions& aOptions,
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ErrorResult& aRv) {
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if (aOptions.mNumberOfInputs == 0 && aOptions.mNumberOfOutputs == 0) {
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aRv.Throw(NS_ERROR_DOM_NOT_SUPPORTED_ERR);
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return nullptr;
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}
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if (aOptions.mOutputChannelCount.WasPassed()) {
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if (aOptions.mOutputChannelCount.Value().Length() !=
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aOptions.mNumberOfOutputs) {
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aRv.Throw(NS_ERROR_DOM_INDEX_SIZE_ERR);
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return nullptr;
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}
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for (uint32_t channelCount : aOptions.mOutputChannelCount.Value()) {
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if (channelCount == 0 || channelCount > WebAudioUtils::MaxChannelCount) {
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aRv.Throw(NS_ERROR_DOM_NOT_SUPPORTED_ERR);
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return nullptr;
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}
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}
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}
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/**
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* 2. If nodeName does not exists as a key in the BaseAudioContext’s node
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* name to parameter descriptor map, throw a NotSupportedError exception
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* and abort these steps.
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*/
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const AudioParamDescriptorMap* parameterDescriptors =
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aAudioContext.GetParamMapForWorkletName(aName);
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if (!parameterDescriptors) {
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aRv.Throw(NS_ERROR_DOM_NOT_SUPPORTED_ERR);
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return nullptr;
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}
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// MSG does not support more than UINT16_MAX inputs or outputs.
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if (aOptions.mNumberOfInputs > UINT16_MAX) {
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aRv.ThrowRangeError<MSG_VALUE_OUT_OF_RANGE>(
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NS_LITERAL_STRING("numberOfInputs"));
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return nullptr;
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}
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if (aOptions.mNumberOfOutputs > UINT16_MAX) {
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aRv.ThrowRangeError<MSG_VALUE_OUT_OF_RANGE>(
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NS_LITERAL_STRING("numberOfOutputs"));
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return nullptr;
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}
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RefPtr<AudioWorkletNode> audioWorkletNode =
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new AudioWorkletNode(&aAudioContext, aName, aOptions);
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audioWorkletNode->Initialize(aOptions, aRv);
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if (NS_WARN_IF(aRv.Failed())) {
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return nullptr;
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}
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return audioWorkletNode.forget();
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}
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AudioParamMap* AudioWorkletNode::GetParameters(ErrorResult& aRv) const {
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aRv.Throw(NS_ERROR_NOT_IMPLEMENTED);
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return nullptr;
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}
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MessagePort* AudioWorkletNode::GetPort(ErrorResult& aRv) const {
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aRv.Throw(NS_ERROR_NOT_IMPLEMENTED);
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return nullptr;
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}
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JSObject* AudioWorkletNode::WrapObject(JSContext* aCx,
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JS::Handle<JSObject*> aGivenProto) {
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return AudioWorkletNode_Binding::Wrap(aCx, this, aGivenProto);
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}
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size_t AudioWorkletNode::SizeOfExcludingThis(MallocSizeOf aMallocSizeOf) const {
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size_t amount = AudioNode::SizeOfExcludingThis(aMallocSizeOf);
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return amount;
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}
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size_t AudioWorkletNode::SizeOfIncludingThis(MallocSizeOf aMallocSizeOf) const {
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return aMallocSizeOf(this) + SizeOfExcludingThis(aMallocSizeOf);
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}
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} // namespace dom
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} // namespace mozilla
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