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1 /* | 1 /* |
2 * Copyright (C) 2010, Google Inc. All rights reserved. | 2 * Copyright (C) 2010, Google Inc. All rights reserved. |
3 * | 3 * |
4 * Redistribution and use in source and binary forms, with or without | 4 * Redistribution and use in source and binary forms, with or without |
5 * modification, are permitted provided that the following conditions | 5 * modification, are permitted provided that the following conditions |
6 * are met: | 6 * are met: |
7 * 1. Redistributions of source code must retain the above copyright | 7 * 1. Redistributions of source code must retain the above copyright |
8 * notice, this list of conditions and the following disclaimer. | 8 * notice, this list of conditions and the following disclaimer. |
9 * 2. Redistributions in binary form must reproduce the above copyright | 9 * 2. Redistributions in binary form must reproduce the above copyright |
10 * notice, this list of conditions and the following disclaimer in the | 10 * notice, this list of conditions and the following disclaimer in the |
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75 class AudioContext : public RefCountedGarbageCollectedWillBeGarbageCollectedFina
lized<AudioContext>, public ActiveDOMObject, public EventTargetWithInlineData { | 75 class AudioContext : public RefCountedGarbageCollectedWillBeGarbageCollectedFina
lized<AudioContext>, public ActiveDOMObject, public EventTargetWithInlineData { |
76 DEFINE_EVENT_TARGET_REFCOUNTING_WILL_BE_REMOVED(RefCountedGarbageCollected<A
udioContext>); | 76 DEFINE_EVENT_TARGET_REFCOUNTING_WILL_BE_REMOVED(RefCountedGarbageCollected<A
udioContext>); |
77 DEFINE_WRAPPERTYPEINFO(); | 77 DEFINE_WRAPPERTYPEINFO(); |
78 WILL_BE_USING_GARBAGE_COLLECTED_MIXIN(AudioContext); | 78 WILL_BE_USING_GARBAGE_COLLECTED_MIXIN(AudioContext); |
79 public: | 79 public: |
80 // Create an AudioContext for rendering to the audio hardware. | 80 // Create an AudioContext for rendering to the audio hardware. |
81 static AudioContext* create(Document&, ExceptionState&); | 81 static AudioContext* create(Document&, ExceptionState&); |
82 | 82 |
83 virtual ~AudioContext(); | 83 virtual ~AudioContext(); |
84 | 84 |
85 virtual void trace(Visitor*) OVERRIDE; | 85 virtual void trace(Visitor*) override; |
86 | 86 |
87 bool isInitialized() const { return m_isInitialized; } | 87 bool isInitialized() const { return m_isInitialized; } |
88 bool isOfflineContext() { return m_isOfflineContext; } | 88 bool isOfflineContext() { return m_isOfflineContext; } |
89 | 89 |
90 // Document notification | 90 // Document notification |
91 virtual void stop() OVERRIDE FINAL; | 91 virtual void stop() override final; |
92 virtual bool hasPendingActivity() const OVERRIDE; | 92 virtual bool hasPendingActivity() const override; |
93 | 93 |
94 AudioDestinationNode* destination() { return m_destinationNode.get(); } | 94 AudioDestinationNode* destination() { return m_destinationNode.get(); } |
95 size_t currentSampleFrame() const { return m_destinationNode->currentSampleF
rame(); } | 95 size_t currentSampleFrame() const { return m_destinationNode->currentSampleF
rame(); } |
96 double currentTime() const { return m_destinationNode->currentTime(); } | 96 double currentTime() const { return m_destinationNode->currentTime(); } |
97 float sampleRate() const { return m_destinationNode->sampleRate(); } | 97 float sampleRate() const { return m_destinationNode->sampleRate(); } |
98 | 98 |
99 AudioBuffer* createBuffer(unsigned numberOfChannels, size_t numberOfFrames,
float sampleRate, ExceptionState&); | 99 AudioBuffer* createBuffer(unsigned numberOfChannels, size_t numberOfFrames,
float sampleRate, ExceptionState&); |
100 | 100 |
101 // Asynchronous audio file data decoding. | 101 // Asynchronous audio file data decoding. |
102 void decodeAudioData(ArrayBuffer*, AudioBufferCallback*, AudioBufferCallback
*, ExceptionState&); | 102 void decodeAudioData(ArrayBuffer*, AudioBufferCallback*, AudioBufferCallback
*, ExceptionState&); |
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213 | 213 |
214 // Only accessed when the graph lock is held. | 214 // Only accessed when the graph lock is held. |
215 void markSummingJunctionDirty(AudioSummingJunction*); | 215 void markSummingJunctionDirty(AudioSummingJunction*); |
216 // Only accessed when the graph lock is held. Must be called on the main thr
ead. | 216 // Only accessed when the graph lock is held. Must be called on the main thr
ead. |
217 void removeMarkedSummingJunction(AudioSummingJunction*); | 217 void removeMarkedSummingJunction(AudioSummingJunction*); |
218 void markAudioNodeOutputDirty(AudioNodeOutput*); | 218 void markAudioNodeOutputDirty(AudioNodeOutput*); |
219 void removeMarkedAudioNodeOutput(AudioNodeOutput*); | 219 void removeMarkedAudioNodeOutput(AudioNodeOutput*); |
220 void disposeOutputs(AudioNode&); | 220 void disposeOutputs(AudioNode&); |
221 | 221 |
222 // EventTarget | 222 // EventTarget |
223 virtual const AtomicString& interfaceName() const OVERRIDE FINAL; | 223 virtual const AtomicString& interfaceName() const override final; |
224 virtual ExecutionContext* executionContext() const OVERRIDE FINAL; | 224 virtual ExecutionContext* executionContext() const override final; |
225 | 225 |
226 DEFINE_ATTRIBUTE_EVENT_LISTENER(complete); | 226 DEFINE_ATTRIBUTE_EVENT_LISTENER(complete); |
227 | 227 |
228 void startRendering(); | 228 void startRendering(); |
229 void fireCompletionEvent(); | 229 void fireCompletionEvent(); |
230 | 230 |
231 static unsigned s_hardwareContextCount; | 231 static unsigned s_hardwareContextCount; |
232 | 232 |
233 protected: | 233 protected: |
234 explicit AudioContext(Document*); | 234 explicit AudioContext(Document*); |
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346 HashSet<AudioNode*> m_deferredCountModeChange; | 346 HashSet<AudioNode*> m_deferredCountModeChange; |
347 | 347 |
348 // This is considering 32 is large enough for multiple channels audio. | 348 // This is considering 32 is large enough for multiple channels audio. |
349 // It is somewhat arbitrary and could be increased if necessary. | 349 // It is somewhat arbitrary and could be increased if necessary. |
350 enum { MaxNumberOfChannels = 32 }; | 350 enum { MaxNumberOfChannels = 32 }; |
351 }; | 351 }; |
352 | 352 |
353 } // namespace blink | 353 } // namespace blink |
354 | 354 |
355 #endif // AudioContext_h | 355 #endif // AudioContext_h |
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