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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 |
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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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