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| 1 /* | 1 /* |
| 2 * Copyright (C) 2012, Google Inc. All rights reserved. | 2 * Copyright (C) 2012, 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 |
| (...skipping 18 matching lines...) Expand all Loading... |
| 29 #include "modules/webaudio/OfflineAudioContext.h" | 29 #include "modules/webaudio/OfflineAudioContext.h" |
| 30 | 30 |
| 31 #include "bindings/core/v8/ExceptionMessages.h" | 31 #include "bindings/core/v8/ExceptionMessages.h" |
| 32 #include "bindings/core/v8/ExceptionState.h" | 32 #include "bindings/core/v8/ExceptionState.h" |
| 33 #include "core/dom/Document.h" | 33 #include "core/dom/Document.h" |
| 34 #include "core/dom/ExceptionCode.h" | 34 #include "core/dom/ExceptionCode.h" |
| 35 #include "core/dom/ExecutionContext.h" | 35 #include "core/dom/ExecutionContext.h" |
| 36 | 36 |
| 37 namespace blink { | 37 namespace blink { |
| 38 | 38 |
| 39 PassRefPtrWillBeRawPtr<OfflineAudioContext> OfflineAudioContext::create(Executio
nContext* context, unsigned numberOfChannels, size_t numberOfFrames, float sampl
eRate, ExceptionState& exceptionState) | 39 OfflineAudioContext* OfflineAudioContext::create(ExecutionContext* context, unsi
gned numberOfChannels, size_t numberOfFrames, float sampleRate, ExceptionState&
exceptionState) |
| 40 { | 40 { |
| 41 // FIXME: add support for workers. | 41 // FIXME: add support for workers. |
| 42 if (!context || !context->isDocument()) { | 42 if (!context || !context->isDocument()) { |
| 43 exceptionState.throwDOMException( | 43 exceptionState.throwDOMException( |
| 44 NotSupportedError, | 44 NotSupportedError, |
| 45 "Workers are not supported."); | 45 "Workers are not supported."); |
| 46 return nullptr; | 46 return 0; |
| 47 } | 47 } |
| 48 | 48 |
| 49 Document* document = toDocument(context); | 49 Document* document = toDocument(context); |
| 50 | 50 |
| 51 if (!numberOfFrames) { | 51 if (!numberOfFrames) { |
| 52 exceptionState.throwDOMException(SyntaxError, "number of frames cannot b
e zero."); | 52 exceptionState.throwDOMException(SyntaxError, "number of frames cannot b
e zero."); |
| 53 return nullptr; | 53 return 0; |
| 54 } | 54 } |
| 55 | 55 |
| 56 if (numberOfChannels > AudioContext::maxNumberOfChannels()) { | 56 if (numberOfChannels > AudioContext::maxNumberOfChannels()) { |
| 57 exceptionState.throwDOMException( | 57 exceptionState.throwDOMException( |
| 58 IndexSizeError, | 58 IndexSizeError, |
| 59 ExceptionMessages::indexOutsideRange<unsigned>( | 59 ExceptionMessages::indexOutsideRange<unsigned>( |
| 60 "number of channels", | 60 "number of channels", |
| 61 numberOfChannels, | 61 numberOfChannels, |
| 62 0, | 62 0, |
| 63 ExceptionMessages::InclusiveBound, | 63 ExceptionMessages::InclusiveBound, |
| 64 AudioContext::maxNumberOfChannels(), | 64 AudioContext::maxNumberOfChannels(), |
| 65 ExceptionMessages::InclusiveBound)); | 65 ExceptionMessages::InclusiveBound)); |
| 66 return nullptr; | 66 return 0; |
| 67 } | 67 } |
| 68 | 68 |
| 69 if (!isSampleRateRangeGood(sampleRate)) { | 69 if (!isSampleRateRangeGood(sampleRate)) { |
| 70 exceptionState.throwDOMException(SyntaxError, "sample rate (" + String::
number(sampleRate) + ") must be in the range 44100-96000 Hz."); | 70 exceptionState.throwDOMException(SyntaxError, "sample rate (" + String::
number(sampleRate) + ") must be in the range 44100-96000 Hz."); |
| 71 return nullptr; | 71 return 0; |
| 72 } | 72 } |
| 73 | 73 |
| 74 RefPtrWillBeRawPtr<OfflineAudioContext> audioContext(adoptRefWillBeThreadSaf
eRefCountedGarbageCollected(new OfflineAudioContext(document, numberOfChannels,
numberOfFrames, sampleRate))); | 74 OfflineAudioContext* audioContext = adoptRefCountedGarbageCollected(new Offl
ineAudioContext(document, numberOfChannels, numberOfFrames, sampleRate)); |
| 75 | 75 |
| 76 if (!audioContext->destination()) { | 76 if (!audioContext->destination()) { |
| 77 exceptionState.throwDOMException( | 77 exceptionState.throwDOMException( |
| 78 NotSupportedError, | 78 NotSupportedError, |
| 79 "OfflineAudioContext(" + String::number(numberOfChannels) | 79 "OfflineAudioContext(" + String::number(numberOfChannels) |
| 80 + ", " + String::number(numberOfFrames) | 80 + ", " + String::number(numberOfFrames) |
| 81 + ", " + String::number(sampleRate) | 81 + ", " + String::number(sampleRate) |
| 82 + ")"); | 82 + ")"); |
| 83 } | 83 } |
| 84 | 84 |
| 85 audioContext->suspendIfNeeded(); | 85 audioContext->suspendIfNeeded(); |
| 86 return audioContext.release(); | 86 return audioContext; |
| 87 } | 87 } |
| 88 | 88 |
| 89 OfflineAudioContext::OfflineAudioContext(Document* document, unsigned numberOfCh
annels, size_t numberOfFrames, float sampleRate) | 89 OfflineAudioContext::OfflineAudioContext(Document* document, unsigned numberOfCh
annels, size_t numberOfFrames, float sampleRate) |
| 90 : AudioContext(document, numberOfChannels, numberOfFrames, sampleRate) | 90 : AudioContext(document, numberOfChannels, numberOfFrames, sampleRate) |
| 91 { | 91 { |
| 92 ScriptWrappable::init(this); | 92 ScriptWrappable::init(this); |
| 93 } | 93 } |
| 94 | 94 |
| 95 OfflineAudioContext::~OfflineAudioContext() | 95 OfflineAudioContext::~OfflineAudioContext() |
| 96 { | 96 { |
| 97 } | 97 } |
| 98 | 98 |
| 99 } // namespace blink | 99 } // namespace blink |
| 100 | 100 |
| 101 #endif // ENABLE(WEB_AUDIO) | 101 #endif // ENABLE(WEB_AUDIO) |
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