15c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)/* 25c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * Copyright (C) 2010 Google Inc. All rights reserved. 35c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * 45c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * Redistribution and use in source and binary forms, with or without 55c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * modification, are permitted provided that the following conditions 65c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * are met: 75c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * 85c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * 1. Redistributions of source code must retain the above copyright 95c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * notice, this list of conditions and the following disclaimer. 105c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * 2. Redistributions in binary form must reproduce the above copyright 115c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * notice, this list of conditions and the following disclaimer in the 125c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * documentation and/or other materials provided with the distribution. 135c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * 3. Neither the name of Apple Computer, Inc. ("Apple") nor the names of 145c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * its contributors may be used to endorse or promote products derived 155c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * from this software without specific prior written permission. 165c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * 175c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * THIS SOFTWARE IS PROVIDED BY APPLE AND ITS CONTRIBUTORS "AS IS" AND ANY 185c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 195c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 205c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * DISCLAIMED. IN NO EVENT SHALL APPLE OR ITS CONTRIBUTORS BE LIABLE FOR ANY 215c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 225c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; 235c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND 245c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 255c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 265c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 275c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) */ 285c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 295c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)#include "config.h" 305c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 315c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)#if ENABLE(WEB_AUDIO) 325c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 331e202183a5dc46166763171984b285173f8585e5Torne (Richard Coles)#include "platform/audio/HRTFDatabaseLoader.h" 345c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 3551b2906e11752df6c18351cf520e30522d3b53a1Torne (Richard Coles)#include "platform/Task.h" 3651b2906e11752df6c18351cf520e30522d3b53a1Torne (Richard Coles)#include "public/platform/Platform.h" 375267f701546148b83dfbe1d151cb184385bb5c22Torne (Richard Coles)#include "wtf/MainThread.h" 385c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 395c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)namespace WebCore { 405c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 415c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)// Singleton 42e52495584422c5edb5b2944981473a2e208da323Torne (Richard Coles)HRTFDatabaseLoader::LoaderMap* HRTFDatabaseLoader::s_loaderMap = 0; 435c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 445c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)PassRefPtr<HRTFDatabaseLoader> HRTFDatabaseLoader::createAndLoadAsynchronouslyIfNecessary(float sampleRate) 455c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles){ 465c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) ASSERT(isMainThread()); 475c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 485c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) RefPtr<HRTFDatabaseLoader> loader; 4902772c6a72f1ee0b226341a4f4439970c29fc861Ben Murdoch 50e52495584422c5edb5b2944981473a2e208da323Torne (Richard Coles) if (!s_loaderMap) 51e52495584422c5edb5b2944981473a2e208da323Torne (Richard Coles) s_loaderMap = adoptPtr(new LoaderMap()).leakPtr(); 52e52495584422c5edb5b2944981473a2e208da323Torne (Richard Coles) 53e52495584422c5edb5b2944981473a2e208da323Torne (Richard Coles) loader = s_loaderMap->get(sampleRate); 54e52495584422c5edb5b2944981473a2e208da323Torne (Richard Coles) if (loader) { 555c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) ASSERT(sampleRate == loader->databaseSampleRate()); 56e52495584422c5edb5b2944981473a2e208da323Torne (Richard Coles) return loader; 575c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) } 58e52495584422c5edb5b2944981473a2e208da323Torne (Richard Coles) 59e52495584422c5edb5b2944981473a2e208da323Torne (Richard Coles) loader = adoptRef(new HRTFDatabaseLoader(sampleRate)); 60e52495584422c5edb5b2944981473a2e208da323Torne (Richard Coles) s_loaderMap->add(sampleRate, loader.get()); 61e52495584422c5edb5b2944981473a2e208da323Torne (Richard Coles) 62e52495584422c5edb5b2944981473a2e208da323Torne (Richard Coles) loader->loadAsynchronously(); 63e52495584422c5edb5b2944981473a2e208da323Torne (Richard Coles) 645c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) return loader; 655c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)} 665c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 675c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)HRTFDatabaseLoader::HRTFDatabaseLoader(float sampleRate) 6851b2906e11752df6c18351cf520e30522d3b53a1Torne (Richard Coles) : m_databaseSampleRate(sampleRate) 695c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles){ 705c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) ASSERT(isMainThread()); 715c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)} 725c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 735c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)HRTFDatabaseLoader::~HRTFDatabaseLoader() 745c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles){ 755c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) ASSERT(isMainThread()); 765c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 775c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) waitForLoaderThreadCompletion(); 785c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) m_hrtfDatabase.clear(); 795c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 80e52495584422c5edb5b2944981473a2e208da323Torne (Richard Coles) // Remove ourself from the map. 81e52495584422c5edb5b2944981473a2e208da323Torne (Richard Coles) if (s_loaderMap) 82e52495584422c5edb5b2944981473a2e208da323Torne (Richard Coles) s_loaderMap->remove(m_databaseSampleRate); 83e52495584422c5edb5b2944981473a2e208da323Torne (Richard Coles)} 845c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 855c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)void HRTFDatabaseLoader::load() 865c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles){ 875c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) ASSERT(!isMainThread()); 8851b2906e11752df6c18351cf520e30522d3b53a1Torne (Richard Coles) if (!m_hrtfDatabase) { 895c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) // Load the default HRTF database. 905c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) m_hrtfDatabase = HRTFDatabase::create(m_databaseSampleRate); 915c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) } 925c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)} 935c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 945c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)void HRTFDatabaseLoader::loadAsynchronously() 955c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles){ 965c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) ASSERT(isMainThread()); 975c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 985c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) MutexLocker locker(m_threadLock); 9902772c6a72f1ee0b226341a4f4439970c29fc861Ben Murdoch 10051b2906e11752df6c18351cf520e30522d3b53a1Torne (Richard Coles) if (!m_hrtfDatabase && !m_databaseLoaderThread) { 1015c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) // Start the asynchronous database loading process. 10251b2906e11752df6c18351cf520e30522d3b53a1Torne (Richard Coles) m_databaseLoaderThread = adoptPtr(blink::Platform::current()->createThread("HRTF database loader")); 10351b2906e11752df6c18351cf520e30522d3b53a1Torne (Richard Coles) m_databaseLoaderThread->postTask(new Task(WTF::bind(&HRTFDatabaseLoader::load, this))); 1045c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) } 1055c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)} 1065c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 1075c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)bool HRTFDatabaseLoader::isLoaded() const 1085c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles){ 10951b2906e11752df6c18351cf520e30522d3b53a1Torne (Richard Coles) return m_hrtfDatabase; 1105c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)} 1115c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 1125c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)void HRTFDatabaseLoader::waitForLoaderThreadCompletion() 1135c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles){ 1145c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) MutexLocker locker(m_threadLock); 11551b2906e11752df6c18351cf520e30522d3b53a1Torne (Richard Coles) m_databaseLoaderThread.clear(); 1165c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)} 1175c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 1185c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)} // namespace WebCore 1195c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 1205c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)#endif // ENABLE(WEB_AUDIO) 121