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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 14 matching lines...) Expand all Loading... |
| 25 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF | 25 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
| 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 | 30 |
| 31 #if ENABLE(WEB_AUDIO) | 31 #if ENABLE(WEB_AUDIO) |
| 32 | 32 |
| 33 #include "modules/webaudio/AudioBuffer.h" | 33 #include "modules/webaudio/AudioBuffer.h" |
| 34 | 34 |
| 35 #include "bindings/v8/ExceptionMessages.h" | |
| 36 #include "bindings/v8/ExceptionState.h" | 35 #include "bindings/v8/ExceptionState.h" |
| 37 #include "core/dom/ExceptionCode.h" | 36 #include "core/dom/ExceptionCode.h" |
| 38 #include "platform/audio/AudioBus.h" | 37 #include "platform/audio/AudioBus.h" |
| 39 #include "platform/audio/AudioFileReader.h" | 38 #include "platform/audio/AudioFileReader.h" |
| 40 #include "modules/webaudio/AudioContext.h" | 39 #include "modules/webaudio/AudioContext.h" |
| 41 | 40 |
| 42 namespace WebCore { | 41 namespace WebCore { |
| 43 | 42 |
| 44 float AudioBuffer::minAllowedSampleRate() | 43 float AudioBuffer::minAllowedSampleRate() |
| 45 { | 44 { |
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| 124 } | 123 } |
| 125 | 124 |
| 126 void AudioBuffer::releaseMemory() | 125 void AudioBuffer::releaseMemory() |
| 127 { | 126 { |
| 128 m_channels.clear(); | 127 m_channels.clear(); |
| 129 } | 128 } |
| 130 | 129 |
| 131 PassRefPtr<Float32Array> AudioBuffer::getChannelData(unsigned channelIndex, Exce
ptionState& exceptionState) | 130 PassRefPtr<Float32Array> AudioBuffer::getChannelData(unsigned channelIndex, Exce
ptionState& exceptionState) |
| 132 { | 131 { |
| 133 if (channelIndex >= m_channels.size()) { | 132 if (channelIndex >= m_channels.size()) { |
| 134 exceptionState.throwDOMException( | 133 exceptionState.throwDOMException(IndexSizeError, "channel index (" + Str
ing::number(channelIndex) + ") exceeds number of channels (" + String::number(m_
channels.size()) + ")"); |
| 135 IndexSizeError, | |
| 136 ExceptionMessages::failedToExecute( | |
| 137 "getChannelData", | |
| 138 "AudioBuffer", | |
| 139 "channel index (" + String::number(channelIndex) + ") exceeds nu
mber of channels (" + String::number(m_channels.size()) + ")")); | |
| 140 return 0; | 134 return 0; |
| 141 } | 135 } |
| 142 | 136 |
| 143 Float32Array* channelData = m_channels[channelIndex].get(); | 137 Float32Array* channelData = m_channels[channelIndex].get(); |
| 144 return Float32Array::create(channelData->buffer(), channelData->byteOffset()
, channelData->length()); | 138 return Float32Array::create(channelData->buffer(), channelData->byteOffset()
, channelData->length()); |
| 145 } | 139 } |
| 146 | 140 |
| 147 Float32Array* AudioBuffer::getChannelData(unsigned channelIndex) | 141 Float32Array* AudioBuffer::getChannelData(unsigned channelIndex) |
| 148 { | 142 { |
| 149 if (channelIndex >= m_channels.size()) | 143 if (channelIndex >= m_channels.size()) |
| 150 return 0; | 144 return 0; |
| 151 | 145 |
| 152 return m_channels[channelIndex].get(); | 146 return m_channels[channelIndex].get(); |
| 153 } | 147 } |
| 154 | 148 |
| 155 void AudioBuffer::zero() | 149 void AudioBuffer::zero() |
| 156 { | 150 { |
| 157 for (unsigned i = 0; i < m_channels.size(); ++i) { | 151 for (unsigned i = 0; i < m_channels.size(); ++i) { |
| 158 if (getChannelData(i)) | 152 if (getChannelData(i)) |
| 159 getChannelData(i)->zeroRange(0, length()); | 153 getChannelData(i)->zeroRange(0, length()); |
| 160 } | 154 } |
| 161 } | 155 } |
| 162 | 156 |
| 163 } // namespace WebCore | 157 } // namespace WebCore |
| 164 | 158 |
| 165 #endif // ENABLE(WEB_AUDIO) | 159 #endif // ENABLE(WEB_AUDIO) |
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