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| 1 /* | 1 /* |
| 2 * Copyright (C) 2010 Google Inc. All rights reserved. | 2 * Copyright (C) 2010 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 * | 7 * |
| 8 * 1. Redistributions of source code must retain the above copyright | 8 * 1. Redistributions of source code must retain the above copyright |
| 9 * notice, this list of conditions and the following disclaimer. | 9 * notice, this list of conditions and the following disclaimer. |
| 10 * 2. Redistributions in binary form must reproduce the above copyright | 10 * 2. Redistributions in binary form must reproduce the above copyright |
| (...skipping 15 matching lines...) Expand all Loading... |
| 26 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | 26 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| 27 */ | 27 */ |
| 28 | 28 |
| 29 #include "config.h" | 29 #include "config.h" |
| 30 #if ENABLE(WEB_AUDIO) | 30 #if ENABLE(WEB_AUDIO) |
| 31 #include "modules/webaudio/AudioBuffer.h" | 31 #include "modules/webaudio/AudioBuffer.h" |
| 32 | 32 |
| 33 #include "bindings/core/v8/ExceptionMessages.h" | 33 #include "bindings/core/v8/ExceptionMessages.h" |
| 34 #include "bindings/core/v8/ExceptionState.h" | 34 #include "bindings/core/v8/ExceptionState.h" |
| 35 #include "core/dom/ExceptionCode.h" | 35 #include "core/dom/ExceptionCode.h" |
| 36 #include "modules/webaudio/AudioContext.h" | 36 #include "modules/webaudio/AbstractAudioContext.h" |
| 37 #include "platform/audio/AudioBus.h" | 37 #include "platform/audio/AudioBus.h" |
| 38 #include "platform/audio/AudioFileReader.h" | 38 #include "platform/audio/AudioFileReader.h" |
| 39 #include "platform/audio/AudioUtilities.h" | 39 #include "platform/audio/AudioUtilities.h" |
| 40 #include "wtf/Float32Array.h" | 40 #include "wtf/Float32Array.h" |
| 41 | 41 |
| 42 namespace blink { | 42 namespace blink { |
| 43 | 43 |
| 44 AudioBuffer* AudioBuffer::create(unsigned numberOfChannels, size_t numberOfFrame
s, float sampleRate) | 44 AudioBuffer* AudioBuffer::create(unsigned numberOfChannels, size_t numberOfFrame
s, float sampleRate) |
| 45 { | 45 { |
| 46 if (!AudioUtilities::isValidAudioBufferSampleRate(sampleRate) || numberOfCha
nnels > AudioContext::maxNumberOfChannels() || !numberOfChannels || !numberOfFra
mes) | 46 if (!AudioUtilities::isValidAudioBufferSampleRate(sampleRate) || numberOfCha
nnels > AbstractAudioContext::maxNumberOfChannels() || !numberOfChannels || !num
berOfFrames) |
| 47 return nullptr; | 47 return nullptr; |
| 48 | 48 |
| 49 AudioBuffer* buffer = new AudioBuffer(numberOfChannels, numberOfFrames, samp
leRate); | 49 AudioBuffer* buffer = new AudioBuffer(numberOfChannels, numberOfFrames, samp
leRate); |
| 50 | 50 |
| 51 if (!buffer->createdSuccessfully(numberOfChannels)) | 51 if (!buffer->createdSuccessfully(numberOfChannels)) |
| 52 return nullptr; | 52 return nullptr; |
| 53 return buffer; | 53 return buffer; |
| 54 } | 54 } |
| 55 | 55 |
| 56 AudioBuffer* AudioBuffer::create(unsigned numberOfChannels, size_t numberOfFrame
s, float sampleRate, ExceptionState& exceptionState) | 56 AudioBuffer* AudioBuffer::create(unsigned numberOfChannels, size_t numberOfFrame
s, float sampleRate, ExceptionState& exceptionState) |
| 57 { | 57 { |
| 58 if (!numberOfChannels || numberOfChannels > AudioContext::maxNumberOfChannel
s()) { | 58 if (!numberOfChannels || numberOfChannels > AbstractAudioContext::maxNumberO
fChannels()) { |
| 59 exceptionState.throwDOMException( | 59 exceptionState.throwDOMException( |
| 60 NotSupportedError, | 60 NotSupportedError, |
| 61 ExceptionMessages::indexOutsideRange( | 61 ExceptionMessages::indexOutsideRange( |
| 62 "number of channels", | 62 "number of channels", |
| 63 numberOfChannels, | 63 numberOfChannels, |
| 64 1u, | 64 1u, |
| 65 ExceptionMessages::InclusiveBound, | 65 ExceptionMessages::InclusiveBound, |
| 66 AudioContext::maxNumberOfChannels(), | 66 AbstractAudioContext::maxNumberOfChannels(), |
| 67 ExceptionMessages::InclusiveBound)); | 67 ExceptionMessages::InclusiveBound)); |
| 68 return nullptr; | 68 return nullptr; |
| 69 } | 69 } |
| 70 | 70 |
| 71 if (!AudioUtilities::isValidAudioBufferSampleRate(sampleRate)) { | 71 if (!AudioUtilities::isValidAudioBufferSampleRate(sampleRate)) { |
| 72 exceptionState.throwDOMException( | 72 exceptionState.throwDOMException( |
| 73 NotSupportedError, | 73 NotSupportedError, |
| 74 ExceptionMessages::indexOutsideRange( | 74 ExceptionMessages::indexOutsideRange( |
| 75 "sample rate", | 75 "sample rate", |
| 76 sampleRate, | 76 sampleRate, |
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| 321 if (DOMFloat32Array* array = getChannelData(i)) { | 321 if (DOMFloat32Array* array = getChannelData(i)) { |
| 322 float* data = array->data(); | 322 float* data = array->data(); |
| 323 memset(data, 0, length() * sizeof(*data)); | 323 memset(data, 0, length() * sizeof(*data)); |
| 324 } | 324 } |
| 325 } | 325 } |
| 326 } | 326 } |
| 327 | 327 |
| 328 } // namespace blink | 328 } // namespace blink |
| 329 | 329 |
| 330 #endif // ENABLE(WEB_AUDIO) | 330 #endif // ENABLE(WEB_AUDIO) |
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