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Side by Side Diff: Source/modules/webaudio/AudioContext.h

Issue 176683003: HRTFDatabaseLoader is not an absolute condition to run audioContext (Closed) Base URL: https://chromium.googlesource.com/chromium/blink.git@master
Patch Set: Created 6 years, 10 months ago
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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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23 */ 23 */
24 24
25 #ifndef AudioContext_h 25 #ifndef AudioContext_h
26 #define AudioContext_h 26 #define AudioContext_h
27 27
28 #include "bindings/v8/ScriptWrappable.h" 28 #include "bindings/v8/ScriptWrappable.h"
29 #include "core/dom/ActiveDOMObject.h" 29 #include "core/dom/ActiveDOMObject.h"
30 #include "core/events/EventListener.h" 30 #include "core/events/EventListener.h"
31 #include "core/events/EventTarget.h" 31 #include "core/events/EventTarget.h"
32 #include "platform/audio/AudioBus.h" 32 #include "platform/audio/AudioBus.h"
33 #include "platform/audio/HRTFDatabaseLoader.h"
34 #include "modules/webaudio/AsyncAudioDecoder.h" 33 #include "modules/webaudio/AsyncAudioDecoder.h"
35 #include "modules/webaudio/AudioDestinationNode.h" 34 #include "modules/webaudio/AudioDestinationNode.h"
36 #include "wtf/HashSet.h" 35 #include "wtf/HashSet.h"
37 #include "wtf/MainThread.h" 36 #include "wtf/MainThread.h"
38 #include "wtf/OwnPtr.h" 37 #include "wtf/OwnPtr.h"
39 #include "wtf/PassRefPtr.h" 38 #include "wtf/PassRefPtr.h"
40 #include "wtf/RefCounted.h" 39 #include "wtf/RefCounted.h"
41 #include "wtf/RefPtr.h" 40 #include "wtf/RefPtr.h"
42 #include "wtf/ThreadSafeRefCounted.h" 41 #include "wtf/ThreadSafeRefCounted.h"
43 #include "wtf/Threading.h" 42 #include "wtf/Threading.h"
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82 81
83 // Deprecated: create an AudioContext for offline (non-realtime) rendering. 82 // Deprecated: create an AudioContext for offline (non-realtime) rendering.
84 static PassRefPtr<AudioContext> create(Document&, unsigned numberOfChannels, size_t numberOfFrames, float sampleRate, ExceptionState&); 83 static PassRefPtr<AudioContext> create(Document&, unsigned numberOfChannels, size_t numberOfFrames, float sampleRate, ExceptionState&);
85 84
86 virtual ~AudioContext(); 85 virtual ~AudioContext();
87 86
88 bool isInitialized() const; 87 bool isInitialized() const;
89 88
90 bool isOfflineContext() { return m_isOfflineContext; } 89 bool isOfflineContext() { return m_isOfflineContext; }
91 90
92 // Returns true when initialize() was called AND all asynchronous initializa tion has completed.
93 bool isRunnable() const;
94
95 HRTFDatabaseLoader* hrtfDatabaseLoader() const { return m_hrtfDatabaseLoader .get(); }
96
97 // Document notification 91 // Document notification
98 virtual void stop() OVERRIDE FINAL; 92 virtual void stop() OVERRIDE FINAL;
99 93
100 AudioDestinationNode* destination() { return m_destinationNode.get(); } 94 AudioDestinationNode* destination() { return m_destinationNode.get(); }
101 size_t currentSampleFrame() const { return m_destinationNode->currentSampleF rame(); } 95 size_t currentSampleFrame() const { return m_destinationNode->currentSampleF rame(); }
102 double currentTime() const { return m_destinationNode->currentTime(); } 96 double currentTime() const { return m_destinationNode->currentTime(); }
103 float sampleRate() const { return m_destinationNode->sampleRate(); } 97 float sampleRate() const { return m_destinationNode->sampleRate(); }
104 unsigned long activeSourceCount() const { return static_cast<unsigned long>( m_activeSourceCount); } 98 unsigned long activeSourceCount() const { return static_cast<unsigned long>( m_activeSourceCount); }
105 99
106 void incrementActiveSourceCount(); 100 void incrementActiveSourceCount();
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314 unsigned m_connectionCount; 308 unsigned m_connectionCount;
315 309
316 // Graph locking. 310 // Graph locking.
317 Mutex m_contextGraphMutex; 311 Mutex m_contextGraphMutex;
318 volatile ThreadIdentifier m_audioThread; 312 volatile ThreadIdentifier m_audioThread;
319 volatile ThreadIdentifier m_graphOwnerThread; // if the lock is held then th is is the thread which owns it, otherwise == UndefinedThreadIdentifier 313 volatile ThreadIdentifier m_graphOwnerThread; // if the lock is held then th is is the thread which owns it, otherwise == UndefinedThreadIdentifier
320 314
321 // Only accessed in the audio thread. 315 // Only accessed in the audio thread.
322 Vector<AudioNode*> m_deferredFinishDerefList; 316 Vector<AudioNode*> m_deferredFinishDerefList;
323 317
324 // HRTF Database loader
325 RefPtr<HRTFDatabaseLoader> m_hrtfDatabaseLoader;
326
327 RefPtr<AudioBuffer> m_renderTarget; 318 RefPtr<AudioBuffer> m_renderTarget;
328 319
329 bool m_isOfflineContext; 320 bool m_isOfflineContext;
330 321
331 AsyncAudioDecoder m_audioDecoder; 322 AsyncAudioDecoder m_audioDecoder;
332 323
333 // This is considering 32 is large enough for multiple channels audio. 324 // This is considering 32 is large enough for multiple channels audio.
334 // It is somewhat arbitrary and could be increased if necessary. 325 // It is somewhat arbitrary and could be increased if necessary.
335 enum { MaxNumberOfChannels = 32 }; 326 enum { MaxNumberOfChannels = 32 };
336 327
337 // Number of AudioBufferSourceNodes that are active (playing). 328 // Number of AudioBufferSourceNodes that are active (playing).
338 int m_activeSourceCount; 329 int m_activeSourceCount;
339 }; 330 };
340 331
341 } // WebCore 332 } // WebCore
342 333
343 #endif // AudioContext_h 334 #endif // AudioContext_h
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