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 "modules/webaudio/OfflineAudioContext.h" 30 31 #include "bindings/v8/ExceptionState.h" 32 #include "core/dom/Document.h" 33 #include "core/dom/ExceptionCode.h" 34 #include "core/dom/ScriptExecutionContext.h" 35 36 namespace WebCore { 37 38 PassRefPtr<OfflineAudioContext> OfflineAudioContext::create(ScriptExecutionContext* context, unsigned numberOfChannels, size_t numberOfFrames, float sampleRate, ExceptionState& es) 39 { 40 // FIXME: add support for workers. 41 if (!context || !context->isDocument()) { 42 es.throwDOMException(NotSupportedError); 43 return 0; 44 } 45 46 Document* document = toDocument(context); 47 48 if (numberOfChannels > 10 || !isSampleRateRangeGood(sampleRate)) { 49 es.throwDOMException(SyntaxError); 50 return 0; 51 } 52 53 RefPtr<OfflineAudioContext> audioContext(adoptRef(new OfflineAudioContext(document, numberOfChannels, numberOfFrames, sampleRate))); 54 audioContext->suspendIfNeeded(); 55 return audioContext.release(); 56 } 57 58 OfflineAudioContext::OfflineAudioContext(Document* document, unsigned numberOfChannels, size_t numberOfFrames, float sampleRate) 59 : AudioContext(document, numberOfChannels, numberOfFrames, sampleRate) 60 { 61 ScriptWrappable::init(this); 62 } 63 64 OfflineAudioContext::~OfflineAudioContext() 65 { 66 } 67 68 } // namespace WebCore 69 70 #endif // ENABLE(WEB_AUDIO) 71
