зеркало из https://github.com/mozilla/gecko-dev.git
134 строки
4.4 KiB
C++
134 строки
4.4 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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#ifndef ScriptProcessorNode_h_
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#define ScriptProcessorNode_h_
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#include "AudioNode.h"
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#include "mozilla/ErrorResult.h"
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namespace mozilla {
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namespace dom {
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class AudioContext;
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class SharedBuffers;
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class ScriptProcessorNode final : public AudioNode {
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public:
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ScriptProcessorNode(AudioContext* aContext, uint32_t aBufferSize,
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uint32_t aNumberOfInputChannels,
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uint32_t aNumberOfOutputChannels);
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NS_INLINE_DECL_REFCOUNTING_INHERITED(ScriptProcessorNode, AudioNode)
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IMPL_EVENT_HANDLER(audioprocess)
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using EventTarget::EventListenerAdded;
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void EventListenerAdded(nsAtom* aType) override;
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using EventTarget::EventListenerRemoved;
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void EventListenerRemoved(nsAtom* aType) override;
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JSObject* WrapObject(JSContext* aCx,
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JS::Handle<JSObject*> aGivenProto) override;
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AudioNode* Connect(AudioNode& aDestination, uint32_t aOutput, uint32_t aInput,
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ErrorResult& aRv) override {
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AudioNode* node = AudioNode::Connect(aDestination, aOutput, aInput, aRv);
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if (!aRv.Failed()) {
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UpdateConnectedStatus();
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}
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return node;
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}
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void Connect(AudioParam& aDestination, uint32_t aOutput,
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ErrorResult& aRv) override {
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AudioNode::Connect(aDestination, aOutput, aRv);
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if (!aRv.Failed()) {
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UpdateConnectedStatus();
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}
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}
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void Disconnect(ErrorResult& aRv) override {
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AudioNode::Disconnect(aRv);
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UpdateConnectedStatus();
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}
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void Disconnect(uint32_t aOutput, ErrorResult& aRv) override {
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AudioNode::Disconnect(aOutput, aRv);
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UpdateConnectedStatus();
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}
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void NotifyInputsChanged() override { UpdateConnectedStatus(); }
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void NotifyHasPhantomInput() override {
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mHasPhantomInput = true;
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// No need to UpdateConnectedStatus() because there was previously an
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// input in InputNodes().
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}
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void Disconnect(AudioNode& aDestination, ErrorResult& aRv) override {
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AudioNode::Disconnect(aDestination, aRv);
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UpdateConnectedStatus();
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}
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void Disconnect(AudioNode& aDestination, uint32_t aOutput,
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ErrorResult& aRv) override {
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AudioNode::Disconnect(aDestination, aOutput, aRv);
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UpdateConnectedStatus();
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}
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void Disconnect(AudioNode& aDestination, uint32_t aOutput, uint32_t aInput,
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ErrorResult& aRv) override {
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AudioNode::Disconnect(aDestination, aOutput, aInput, aRv);
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UpdateConnectedStatus();
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}
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void Disconnect(AudioParam& aDestination, ErrorResult& aRv) override {
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AudioNode::Disconnect(aDestination, aRv);
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UpdateConnectedStatus();
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}
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void Disconnect(AudioParam& aDestination, uint32_t aOutput,
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ErrorResult& aRv) override {
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AudioNode::Disconnect(aDestination, aOutput, aRv);
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UpdateConnectedStatus();
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}
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void SetChannelCount(uint32_t aChannelCount, ErrorResult& aRv) override {
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if (aChannelCount != ChannelCount()) {
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// Spec says to throw InvalidStateError, but see
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// https://github.com/WebAudio/web-audio-api/issues/2153
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aRv.ThrowNotSupportedError(
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"Cannot change channel count of ScriptProcessorNode");
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}
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}
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void SetChannelCountModeValue(ChannelCountMode aMode,
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ErrorResult& aRv) override {
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if (aMode != ChannelCountMode::Explicit) {
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// Spec says to throw InvalidStateError, but see
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// https://github.com/WebAudio/web-audio-api/issues/2154
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aRv.ThrowNotSupportedError(
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"Cannot change channel count mode of ScriptProcessorNode");
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}
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}
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uint32_t BufferSize() const { return mBufferSize; }
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uint32_t NumberOfOutputChannels() const { return mNumberOfOutputChannels; }
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using DOMEventTargetHelper::DispatchTrustedEvent;
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const char* NodeType() const override { return "ScriptProcessorNode"; }
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size_t SizeOfExcludingThis(MallocSizeOf aMallocSizeOf) const override;
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size_t SizeOfIncludingThis(MallocSizeOf aMallocSizeOf) const override;
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private:
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virtual ~ScriptProcessorNode();
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void UpdateConnectedStatus();
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const uint32_t mBufferSize;
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const uint32_t mNumberOfOutputChannels;
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bool mHasPhantomInput = false;
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};
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} // namespace dom
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} // namespace mozilla
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#endif
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