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authorMatt A. Tobin <mattatobin@localhost.localdomain>2018-02-02 04:16:08 -0500
committerMatt A. Tobin <mattatobin@localhost.localdomain>2018-02-02 04:16:08 -0500
commit5f8de423f190bbb79a62f804151bc24824fa32d8 (patch)
tree10027f336435511475e392454359edea8e25895d /dom/media/webaudio/AudioParam.h
parent49ee0794b5d912db1f95dce6eb52d781dc210db5 (diff)
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Add m-esr52 at 52.6.0
Diffstat (limited to 'dom/media/webaudio/AudioParam.h')
-rw-r--r--dom/media/webaudio/AudioParam.h246
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diff --git a/dom/media/webaudio/AudioParam.h b/dom/media/webaudio/AudioParam.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 AudioParam_h_
+#define AudioParam_h_
+
+#include "AudioParamTimeline.h"
+#include "nsWrapperCache.h"
+#include "nsCycleCollectionParticipant.h"
+#include "AudioNode.h"
+#include "mozilla/dom/TypedArray.h"
+#include "WebAudioUtils.h"
+#include "js/TypeDecls.h"
+
+namespace mozilla {
+
+namespace dom {
+
+class AudioParam final : public nsWrapperCache,
+ public AudioParamTimeline
+{
+ virtual ~AudioParam();
+
+public:
+ AudioParam(AudioNode* aNode,
+ uint32_t aIndex,
+ float aDefaultValue,
+ const char* aName);
+
+ NS_IMETHOD_(MozExternalRefCountType) AddRef(void);
+ NS_IMETHOD_(MozExternalRefCountType) Release(void);
+ NS_DECL_CYCLE_COLLECTION_SCRIPT_HOLDER_NATIVE_CLASS(AudioParam)
+
+ AudioContext* GetParentObject() const
+ {
+ return mNode->Context();
+ }
+
+ JSObject* WrapObject(JSContext* aCx, JS::Handle<JSObject*> aGivenProto) override;
+
+ // We override SetValueCurveAtTime to convert the Float32Array to the wrapper
+ // object.
+ AudioParam* SetValueCurveAtTime(const Float32Array& aValues,
+ double aStartTime,
+ double aDuration,
+ ErrorResult& aRv)
+ {
+ if (!WebAudioUtils::IsTimeValid(aStartTime)) {
+ aRv.Throw(NS_ERROR_DOM_NOT_SUPPORTED_ERR);
+ return this;
+ }
+ aValues.ComputeLengthAndData();
+
+ EventInsertionHelper(aRv, AudioTimelineEvent::SetValueCurve,
+ aStartTime, 0.0f, 0.0f, aDuration, aValues.Data(),
+ aValues.Length());
+ return this;
+ }
+
+ void SetValue(float aValue)
+ {
+ AudioTimelineEvent event(AudioTimelineEvent::SetValue, 0.0f, aValue);
+
+ ErrorResult rv;
+ if (!ValidateEvent(event, rv)) {
+ MOZ_ASSERT(false, "This should not happen, "
+ "setting the value should always work");
+ return;
+ }
+
+ AudioParamTimeline::SetValue(aValue);
+
+ SendEventToEngine(event);
+ }
+
+ AudioParam* SetValueAtTime(float aValue, double aStartTime, ErrorResult& aRv)
+ {
+ if (!WebAudioUtils::IsTimeValid(aStartTime)) {
+ aRv.Throw(NS_ERROR_DOM_NOT_SUPPORTED_ERR);
+ return this;
+ }
+ EventInsertionHelper(aRv, AudioTimelineEvent::SetValueAtTime,
+ aStartTime, aValue);
+
+ return this;
+ }
+
+ AudioParam* LinearRampToValueAtTime(float aValue, double aEndTime,
+ ErrorResult& aRv)
+ {
+ if (!WebAudioUtils::IsTimeValid(aEndTime)) {
+ aRv.Throw(NS_ERROR_DOM_NOT_SUPPORTED_ERR);
+ return this;
+ }
+ EventInsertionHelper(aRv, AudioTimelineEvent::LinearRamp, aEndTime, aValue);
+ return this;
+ }
+
+ AudioParam* ExponentialRampToValueAtTime(float aValue, double aEndTime,
+ ErrorResult& aRv)
+ {
+ if (!WebAudioUtils::IsTimeValid(aEndTime)) {
+ aRv.Throw(NS_ERROR_DOM_NOT_SUPPORTED_ERR);
+ return this;
+ }
+ EventInsertionHelper(aRv, AudioTimelineEvent::ExponentialRamp,
+ aEndTime, aValue);
+ return this;
+ }
+
+ AudioParam* SetTargetAtTime(float aTarget, double aStartTime,
+ double aTimeConstant, ErrorResult& aRv)
+ {
+ if (!WebAudioUtils::IsTimeValid(aStartTime) ||
+ !WebAudioUtils::IsTimeValid(aTimeConstant)) {
+ aRv.Throw(NS_ERROR_DOM_NOT_SUPPORTED_ERR);
+ return this;
+ }
+ EventInsertionHelper(aRv, AudioTimelineEvent::SetTarget,
+ aStartTime, aTarget,
+ aTimeConstant);
+
+ return this;
+ }
+
+ AudioParam* CancelScheduledValues(double aStartTime, ErrorResult& aRv)
+ {
+ if (!WebAudioUtils::IsTimeValid(aStartTime)) {
+ aRv.Throw(NS_ERROR_DOM_NOT_SUPPORTED_ERR);
+ return this;
+ }
+
+ // Remove some events on the main thread copy.
+ AudioEventTimeline::CancelScheduledValues(aStartTime);
+
+ AudioTimelineEvent event(AudioTimelineEvent::Cancel, aStartTime, 0.0f);
+
+ SendEventToEngine(event);
+
+ return this;
+ }
+
+ uint32_t ParentNodeId()
+ {
+ return mNode->Id();
+ }
+
+ void GetName(nsAString& aName)
+ {
+ aName.AssignASCII(mName);
+ }
+
+ float DefaultValue() const
+ {
+ return mDefaultValue;
+ }
+
+ const nsTArray<AudioNode::InputNode>& InputNodes() const
+ {
+ return mInputNodes;
+ }
+
+ void RemoveInputNode(uint32_t aIndex)
+ {
+ mInputNodes.RemoveElementAt(aIndex);
+ }
+
+ AudioNode::InputNode* AppendInputNode()
+ {
+ return mInputNodes.AppendElement();
+ }
+
+ // May create the stream if it doesn't exist
+ MediaStream* Stream();
+
+ size_t SizeOfExcludingThis(MallocSizeOf aMallocSizeOf) const override
+ {
+ size_t amount = AudioParamTimeline::SizeOfExcludingThis(aMallocSizeOf);
+ // Not owned:
+ // - mNode
+
+ // Just count the array, actual nodes are counted in mNode.
+ amount += mInputNodes.ShallowSizeOfExcludingThis(aMallocSizeOf);
+
+ if (mNodeStreamPort) {
+ amount += mNodeStreamPort->SizeOfIncludingThis(aMallocSizeOf);
+ }
+
+ return amount;
+ }
+
+ size_t SizeOfIncludingThis(MallocSizeOf aMallocSizeOf) const override
+ {
+ return aMallocSizeOf(this) + SizeOfExcludingThis(aMallocSizeOf);
+ }
+
+private:
+ void EventInsertionHelper(ErrorResult& aRv,
+ AudioTimelineEvent::Type aType,
+ double aTime, float aValue,
+ double aTimeConstant = 0.0,
+ float aDuration = 0.0,
+ const float* aCurve = nullptr,
+ uint32_t aCurveLength = 0)
+ {
+ AudioTimelineEvent event(aType, aTime, aValue,
+ aTimeConstant, aDuration, aCurve, aCurveLength);
+
+ if (!ValidateEvent(event, aRv)) {
+ return;
+ }
+
+ AudioEventTimeline::InsertEvent<double>(event);
+
+ SendEventToEngine(event);
+
+ CleanupOldEvents();
+ }
+
+ void CleanupOldEvents();
+
+ void SendEventToEngine(const AudioTimelineEvent& aEvent);
+
+ void DisconnectFromGraphAndDestroyStream();
+
+ nsCycleCollectingAutoRefCnt mRefCnt;
+ NS_DECL_OWNINGTHREAD
+ RefPtr<AudioNode> mNode;
+ // For every InputNode, there is a corresponding entry in mOutputParams of the
+ // InputNode's mInputNode.
+ nsTArray<AudioNode::InputNode> mInputNodes;
+ const char* mName;
+ // The input port used to connect the AudioParam's stream to its node's stream
+ RefPtr<MediaInputPort> mNodeStreamPort;
+ const uint32_t mIndex;
+ const float mDefaultValue;
+};
+
+} // namespace dom
+} // namespace mozilla
+
+#endif
+