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-rw-r--r--dom/media/webaudio/ScriptProcessorNode.h131
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diff --git a/dom/media/webaudio/ScriptProcessorNode.h b/dom/media/webaudio/ScriptProcessorNode.h
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+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* vim:set ts=2 sw=2 sts=2 et cindent: */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#ifndef ScriptProcessorNode_h_
+#define ScriptProcessorNode_h_
+
+#include "AudioNode.h"
+#include "mozilla/ErrorResult.h"
+
+namespace mozilla::dom {
+
+class AudioContext;
+class SharedBuffers;
+
+class ScriptProcessorNode final : public AudioNode {
+ public:
+ ScriptProcessorNode(AudioContext* aContext, uint32_t aBufferSize,
+ uint32_t aNumberOfInputChannels,
+ uint32_t aNumberOfOutputChannels);
+
+ NS_INLINE_DECL_REFCOUNTING_INHERITED(ScriptProcessorNode, AudioNode)
+
+ IMPL_EVENT_HANDLER(audioprocess)
+
+ using EventTarget::EventListenerAdded;
+ void EventListenerAdded(nsAtom* aType) override;
+
+ using EventTarget::EventListenerRemoved;
+ void EventListenerRemoved(nsAtom* aType) override;
+
+ JSObject* WrapObject(JSContext* aCx,
+ JS::Handle<JSObject*> aGivenProto) override;
+
+ AudioNode* Connect(AudioNode& aDestination, uint32_t aOutput, uint32_t aInput,
+ ErrorResult& aRv) override {
+ AudioNode* node = AudioNode::Connect(aDestination, aOutput, aInput, aRv);
+ if (!aRv.Failed()) {
+ UpdateConnectedStatus();
+ }
+ return node;
+ }
+
+ void Connect(AudioParam& aDestination, uint32_t aOutput,
+ ErrorResult& aRv) override {
+ AudioNode::Connect(aDestination, aOutput, aRv);
+ if (!aRv.Failed()) {
+ UpdateConnectedStatus();
+ }
+ }
+ void Disconnect(ErrorResult& aRv) override {
+ AudioNode::Disconnect(aRv);
+ UpdateConnectedStatus();
+ }
+ void Disconnect(uint32_t aOutput, ErrorResult& aRv) override {
+ AudioNode::Disconnect(aOutput, aRv);
+ UpdateConnectedStatus();
+ }
+ void NotifyInputsChanged() override { UpdateConnectedStatus(); }
+ void NotifyHasPhantomInput() override {
+ mHasPhantomInput = true;
+ // No need to UpdateConnectedStatus() because there was previously an
+ // input in InputNodes().
+ }
+ void Disconnect(AudioNode& aDestination, ErrorResult& aRv) override {
+ AudioNode::Disconnect(aDestination, aRv);
+ UpdateConnectedStatus();
+ }
+ void Disconnect(AudioNode& aDestination, uint32_t aOutput,
+ ErrorResult& aRv) override {
+ AudioNode::Disconnect(aDestination, aOutput, aRv);
+ UpdateConnectedStatus();
+ }
+ void Disconnect(AudioNode& aDestination, uint32_t aOutput, uint32_t aInput,
+ ErrorResult& aRv) override {
+ AudioNode::Disconnect(aDestination, aOutput, aInput, aRv);
+ UpdateConnectedStatus();
+ }
+ void Disconnect(AudioParam& aDestination, ErrorResult& aRv) override {
+ AudioNode::Disconnect(aDestination, aRv);
+ UpdateConnectedStatus();
+ }
+ void Disconnect(AudioParam& aDestination, uint32_t aOutput,
+ ErrorResult& aRv) override {
+ AudioNode::Disconnect(aDestination, aOutput, aRv);
+ UpdateConnectedStatus();
+ }
+ void SetChannelCount(uint32_t aChannelCount, ErrorResult& aRv) override {
+ if (aChannelCount != ChannelCount()) {
+ // Spec says to throw InvalidStateError, but see
+ // https://github.com/WebAudio/web-audio-api/issues/2153
+ aRv.ThrowNotSupportedError(
+ "Cannot change channel count of ScriptProcessorNode");
+ }
+ }
+ void SetChannelCountModeValue(ChannelCountMode aMode,
+ ErrorResult& aRv) override {
+ if (aMode != ChannelCountMode::Explicit) {
+ // Spec says to throw InvalidStateError, but see
+ // https://github.com/WebAudio/web-audio-api/issues/2154
+ aRv.ThrowNotSupportedError(
+ "Cannot change channel count mode of ScriptProcessorNode");
+ }
+ }
+
+ uint32_t BufferSize() const { return mBufferSize; }
+
+ uint32_t NumberOfOutputChannels() const { return mNumberOfOutputChannels; }
+
+ using DOMEventTargetHelper::DispatchTrustedEvent;
+
+ const char* NodeType() const override { return "ScriptProcessorNode"; }
+
+ size_t SizeOfExcludingThis(MallocSizeOf aMallocSizeOf) const override;
+ size_t SizeOfIncludingThis(MallocSizeOf aMallocSizeOf) const override;
+
+ private:
+ virtual ~ScriptProcessorNode();
+
+ void UpdateConnectedStatus();
+
+ const uint32_t mBufferSize;
+ const uint32_t mNumberOfOutputChannels;
+ bool mHasPhantomInput = false;
+};
+
+} // namespace mozilla::dom
+
+#endif