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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-19 00:47:55 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-19 00:47:55 +0000
commit26a029d407be480d791972afb5975cf62c9360a6 (patch)
treef435a8308119effd964b339f76abb83a57c29483 /dom/media/webaudio/OscillatorNode.h
parentInitial commit. (diff)
downloadfirefox-26a029d407be480d791972afb5975cf62c9360a6.tar.xz
firefox-26a029d407be480d791972afb5975cf62c9360a6.zip
Adding upstream version 124.0.1.upstream/124.0.1
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'dom/media/webaudio/OscillatorNode.h')
-rw-r--r--dom/media/webaudio/OscillatorNode.h92
1 files changed, 92 insertions, 0 deletions
diff --git a/dom/media/webaudio/OscillatorNode.h b/dom/media/webaudio/OscillatorNode.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 OscillatorNode_h_
+#define OscillatorNode_h_
+
+#include "AudioScheduledSourceNode.h"
+#include "AudioParam.h"
+#include "PeriodicWave.h"
+#include "mozilla/dom/OscillatorNodeBinding.h"
+
+namespace mozilla::dom {
+
+class AudioContext;
+struct OscillatorOptions;
+
+class OscillatorNode final : public AudioScheduledSourceNode,
+ public MainThreadMediaTrackListener {
+ public:
+ static already_AddRefed<OscillatorNode> Create(
+ AudioContext& aAudioContext, const OscillatorOptions& aOptions,
+ ErrorResult& aRv);
+
+ NS_DECL_ISUPPORTS_INHERITED
+ NS_DECL_CYCLE_COLLECTION_CLASS_INHERITED(OscillatorNode,
+ AudioScheduledSourceNode)
+
+ static already_AddRefed<OscillatorNode> Constructor(
+ const GlobalObject& aGlobal, AudioContext& aAudioContext,
+ const OscillatorOptions& aOptions, ErrorResult& aRv) {
+ return Create(aAudioContext, aOptions, aRv);
+ }
+
+ JSObject* WrapObject(JSContext* aCx,
+ JS::Handle<JSObject*> aGivenProto) override;
+
+ void DestroyMediaTrack() override;
+
+ uint16_t NumberOfInputs() const final { return 0; }
+
+ OscillatorType Type() const { return mType; }
+ void SetType(OscillatorType aType, ErrorResult& aRv) {
+ if (aType == OscillatorType::Custom) {
+ // ::Custom can only be set by setPeriodicWave().
+ // https://github.com/WebAudio/web-audio-api/issues/105 for exception.
+ aRv.ThrowInvalidStateError("Can't set type to \"custom\"");
+ return;
+ }
+ mType = aType;
+ SendTypeToTrack();
+ }
+
+ AudioParam* Frequency() const { return mFrequency; }
+ AudioParam* Detune() const { return mDetune; }
+
+ void Start(double aWhen, ErrorResult& aRv) override;
+ void Stop(double aWhen, ErrorResult& aRv) override;
+
+ void SetPeriodicWave(PeriodicWave& aPeriodicWave) {
+ mPeriodicWave = &aPeriodicWave;
+ // SendTypeToTrack will call SendPeriodicWaveToTrack for us.
+ mType = OscillatorType::Custom;
+ SendTypeToTrack();
+ }
+
+ void NotifyMainThreadTrackEnded() override;
+
+ const char* NodeType() const override { return "OscillatorNode"; }
+
+ size_t SizeOfExcludingThis(MallocSizeOf aMallocSizeOf) const override;
+ size_t SizeOfIncludingThis(MallocSizeOf aMallocSizeOf) const override;
+
+ private:
+ explicit OscillatorNode(AudioContext* aContext);
+ ~OscillatorNode() = default;
+
+ void SendTypeToTrack();
+ void SendPeriodicWaveToTrack();
+
+ OscillatorType mType;
+ RefPtr<PeriodicWave> mPeriodicWave;
+ RefPtr<AudioParam> mFrequency;
+ RefPtr<AudioParam> mDetune;
+ bool mStartCalled;
+};
+
+} // namespace mozilla::dom
+
+#endif