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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/AudioBufferSourceNode.h
parent49ee0794b5d912db1f95dce6eb52d781dc210db5 (diff)
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Add m-esr52 at 52.6.0
Diffstat (limited to 'dom/media/webaudio/AudioBufferSourceNode.h')
-rw-r--r--dom/media/webaudio/AudioBufferSourceNode.h149
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diff --git a/dom/media/webaudio/AudioBufferSourceNode.h b/dom/media/webaudio/AudioBufferSourceNode.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 AudioBufferSourceNode_h_
+#define AudioBufferSourceNode_h_
+
+#include "AudioNode.h"
+#include "AudioBuffer.h"
+
+namespace mozilla {
+namespace dom {
+
+class AudioParam;
+
+class AudioBufferSourceNode final : public AudioNode,
+ public MainThreadMediaStreamListener
+{
+public:
+ explicit AudioBufferSourceNode(AudioContext* aContext);
+
+ void DestroyMediaStream() override;
+
+ uint16_t NumberOfInputs() const final override
+ {
+ return 0;
+ }
+ AudioBufferSourceNode* AsAudioBufferSourceNode() override
+ {
+ return this;
+ }
+ NS_DECL_ISUPPORTS_INHERITED
+ NS_DECL_CYCLE_COLLECTION_CLASS_INHERITED(AudioBufferSourceNode, AudioNode)
+
+ JSObject* WrapObject(JSContext* aCx, JS::Handle<JSObject*> aGivenProto) override;
+
+ void Start(double aWhen, double aOffset,
+ const Optional<double>& aDuration, ErrorResult& aRv);
+ void Stop(double aWhen, ErrorResult& aRv);
+
+ AudioBuffer* GetBuffer(JSContext* aCx) const
+ {
+ return mBuffer;
+ }
+ void SetBuffer(JSContext* aCx, AudioBuffer* aBuffer)
+ {
+ mBuffer = aBuffer;
+ SendBufferParameterToStream(aCx);
+ SendLoopParametersToStream();
+ }
+ AudioParam* PlaybackRate() const
+ {
+ return mPlaybackRate;
+ }
+ AudioParam* Detune() const
+ {
+ return mDetune;
+ }
+ bool Loop() const
+ {
+ return mLoop;
+ }
+ void SetLoop(bool aLoop)
+ {
+ mLoop = aLoop;
+ SendLoopParametersToStream();
+ }
+ double LoopStart() const
+ {
+ return mLoopStart;
+ }
+ void SetLoopStart(double aStart)
+ {
+ mLoopStart = aStart;
+ SendLoopParametersToStream();
+ }
+ double LoopEnd() const
+ {
+ return mLoopEnd;
+ }
+ void SetLoopEnd(double aEnd)
+ {
+ mLoopEnd = aEnd;
+ SendLoopParametersToStream();
+ }
+ void SendDopplerShiftToStream(double aDopplerShift);
+
+ IMPL_EVENT_HANDLER(ended)
+
+ void NotifyMainThreadStreamFinished() override;
+
+ const char* NodeType() const override
+ {
+ return "AudioBufferSourceNode";
+ }
+
+ size_t SizeOfExcludingThis(MallocSizeOf aMallocSizeOf) const override;
+ size_t SizeOfIncludingThis(MallocSizeOf aMallocSizeOf) const override;
+
+protected:
+ virtual ~AudioBufferSourceNode();
+
+private:
+ friend class AudioBufferSourceNodeEngine;
+ // START is sent during Start().
+ // STOP is sent during Stop().
+ // BUFFERSTART and BUFFEREND are sent when SetBuffer() and Start() have
+ // been called (along with sending the buffer).
+ enum EngineParameters {
+ SAMPLE_RATE,
+ START,
+ STOP,
+ // BUFFERSTART is the "offset" passed to start(), multiplied by
+ // buffer.sampleRate.
+ BUFFERSTART,
+ // BUFFEREND is the sum of "offset" and "duration" passed to start(),
+ // multiplied by buffer.sampleRate, or the size of the buffer, if smaller.
+ BUFFEREND,
+ LOOP,
+ LOOPSTART,
+ LOOPEND,
+ PLAYBACKRATE,
+ DETUNE,
+ DOPPLERSHIFT
+ };
+
+ void SendLoopParametersToStream();
+ void SendBufferParameterToStream(JSContext* aCx);
+ void SendOffsetAndDurationParametersToStream(AudioNodeStream* aStream);
+
+private:
+ double mLoopStart;
+ double mLoopEnd;
+ double mOffset;
+ double mDuration;
+ RefPtr<AudioBuffer> mBuffer;
+ RefPtr<AudioParam> mPlaybackRate;
+ RefPtr<AudioParam> mDetune;
+ bool mLoop;
+ bool mStartCalled;
+};
+
+} // namespace dom
+} // namespace mozilla
+
+#endif
+