1/* 2 * Copyright (C) 2012, Google Inc. All rights reserved. 3 * 4 * Redistribution and use in source and binary forms, with or without 5 * modification, are permitted provided that the following conditions 6 * are met: 7 * 1. Redistributions of source code must retain the above copyright 8 * notice, this list of conditions and the following disclaimer. 9 * 2. Redistributions in binary form must reproduce the above copyright 10 * notice, this list of conditions and the following disclaimer in the 11 * documentation and/or other materials provided with the distribution. 12 * 13 * THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS'' AND ANY 14 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 15 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 16 * DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS BE LIABLE FOR ANY 17 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 18 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; 19 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON 20 * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 21 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS 22 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 23 */ 24 25#include "config.h" 26 27#if ENABLE(WEB_AUDIO) 28 29#include "OfflineAudioContext.h" 30 31#include "Document.h" 32#include "ExceptionCode.h" 33#include "ScriptExecutionContext.h" 34 35namespace WebCore { 36 37PassRefPtr<OfflineAudioContext> OfflineAudioContext::create(ScriptExecutionContext& context, unsigned numberOfChannels, size_t numberOfFrames, float sampleRate, ExceptionCode& ec) 38{ 39 // FIXME: add support for workers. 40 if (!context.isDocument()) { 41 ec = NOT_SUPPORTED_ERR; 42 return nullptr; 43 } 44 45 Document& document = toDocument(context); 46 47 if (numberOfChannels > 10 || !isSampleRateRangeGood(sampleRate)) { 48 ec = SYNTAX_ERR; 49 return nullptr; 50 } 51 52 RefPtr<OfflineAudioContext> audioContext(adoptRef(new OfflineAudioContext(document, numberOfChannels, numberOfFrames, sampleRate))); 53 audioContext->suspendIfNeeded(); 54 return audioContext.release(); 55} 56 57OfflineAudioContext::OfflineAudioContext(Document& document, unsigned numberOfChannels, size_t numberOfFrames, float sampleRate) 58 : AudioContext(document, numberOfChannels, numberOfFrames, sampleRate) 59{ 60} 61 62OfflineAudioContext::~OfflineAudioContext() 63{ 64} 65 66} // namespace WebCore 67 68#endif // ENABLE(WEB_AUDIO) 69