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33 #include "platform/audio/HRTFDatabaseLoader.h"
35 #include "platform/Task.h"
36 #include "public/platform/Platform.h"
37 #include "wtf/MainThread.h"
42 HRTFDatabaseLoader::LoaderMap* HRTFDatabaseLoader::s_loaderMap = 0;
44 PassRefPtr<HRTFDatabaseLoader> HRTFDatabaseLoader::createAndLoadAsynchronouslyIfNecessary(float sampleRate)
46 ASSERT(isMainThread());
49 s_loaderMap = adoptPtr(new LoaderMap()).leakPtr();
51 RefPtr<HRTFDatabaseLoader> loader = s_loaderMap->get(sampleRate);
53 ASSERT(sampleRate == loader->databaseSampleRate());
57 loader = adoptRef(new HRTFDatabaseLoader(sampleRate));
58 s_loaderMap->add(sampleRate, loader.get());
60 loader->loadAsynchronously();
65 HRTFDatabaseLoader::HRTFDatabaseLoader(float sampleRate)
66 : m_databaseSampleRate(sampleRate)
68 ASSERT(isMainThread());
71 HRTFDatabaseLoader::~HRTFDatabaseLoader()
73 ASSERT(isMainThread());
75 waitForLoaderThreadCompletion();
76 m_hrtfDatabase.clear();
78 // Remove ourself from the map.
80 s_loaderMap->remove(m_databaseSampleRate);
83 void HRTFDatabaseLoader::load()
85 ASSERT(!isMainThread());
86 if (!m_hrtfDatabase) {
87 // Load the default HRTF database.
88 m_hrtfDatabase = HRTFDatabase::create(m_databaseSampleRate);
92 void HRTFDatabaseLoader::loadAsynchronously()
94 ASSERT(isMainThread());
96 MutexLocker locker(m_threadLock);
98 if (!m_hrtfDatabase && !m_databaseLoaderThread) {
99 // Start the asynchronous database loading process.
100 m_databaseLoaderThread = adoptPtr(Platform::current()->createThread("HRTF database loader"));
101 m_databaseLoaderThread->postTask(new Task(WTF::bind(&HRTFDatabaseLoader::load, this)));
105 bool HRTFDatabaseLoader::isLoaded() const
107 return m_hrtfDatabase;
110 void HRTFDatabaseLoader::waitForLoaderThreadCompletion()
112 MutexLocker locker(m_threadLock);
113 m_databaseLoaderThread.clear();
118 #endif // ENABLE(WEB_AUDIO)