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Side by Side Diff: Source/modules/webaudio/AudioBuffer.cpp

Issue 540283003: bindings: Retires ScriptWrappable::init, etc. (Closed) Base URL: svn://svn.chromium.org/blink/trunk
Patch Set: Addressed a review comment. Created 6 years, 3 months ago
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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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142 142
143 bool AudioBuffer::createdSuccessfully(unsigned desiredNumberOfChannels) const 143 bool AudioBuffer::createdSuccessfully(unsigned desiredNumberOfChannels) const
144 { 144 {
145 return numberOfChannels() == desiredNumberOfChannels; 145 return numberOfChannels() == desiredNumberOfChannels;
146 } 146 }
147 147
148 AudioBuffer::AudioBuffer(unsigned numberOfChannels, size_t numberOfFrames, float sampleRate) 148 AudioBuffer::AudioBuffer(unsigned numberOfChannels, size_t numberOfFrames, float sampleRate)
149 : m_sampleRate(sampleRate) 149 : m_sampleRate(sampleRate)
150 , m_length(numberOfFrames) 150 , m_length(numberOfFrames)
151 { 151 {
152 ScriptWrappable::init(this);
153 m_channels.reserveCapacity(numberOfChannels); 152 m_channels.reserveCapacity(numberOfChannels);
154 153
155 for (unsigned i = 0; i < numberOfChannels; ++i) { 154 for (unsigned i = 0; i < numberOfChannels; ++i) {
156 RefPtr<Float32Array> channelDataArray = Float32Array::create(m_length); 155 RefPtr<Float32Array> channelDataArray = Float32Array::create(m_length);
157 // If the channel data array could not be created, just return. The call er will need to 156 // If the channel data array could not be created, just return. The call er will need to
158 // check that the desired number of channels were created. 157 // check that the desired number of channels were created.
159 if (!channelDataArray) { 158 if (!channelDataArray) {
160 return; 159 return;
161 } 160 }
162 161
163 channelDataArray->setNeuterable(false); 162 channelDataArray->setNeuterable(false);
164 m_channels.append(channelDataArray); 163 m_channels.append(channelDataArray);
165 } 164 }
166 } 165 }
167 166
168 AudioBuffer::AudioBuffer(AudioBus* bus) 167 AudioBuffer::AudioBuffer(AudioBus* bus)
169 : m_sampleRate(bus->sampleRate()) 168 : m_sampleRate(bus->sampleRate())
170 , m_length(bus->length()) 169 , m_length(bus->length())
171 { 170 {
172 ScriptWrappable::init(this);
173 // Copy audio data from the bus to the Float32Arrays we manage. 171 // Copy audio data from the bus to the Float32Arrays we manage.
174 unsigned numberOfChannels = bus->numberOfChannels(); 172 unsigned numberOfChannels = bus->numberOfChannels();
175 m_channels.reserveCapacity(numberOfChannels); 173 m_channels.reserveCapacity(numberOfChannels);
176 for (unsigned i = 0; i < numberOfChannels; ++i) { 174 for (unsigned i = 0; i < numberOfChannels; ++i) {
177 RefPtr<Float32Array> channelDataArray = Float32Array::create(m_length); 175 RefPtr<Float32Array> channelDataArray = Float32Array::create(m_length);
178 // If the channel data array could not be created, just return. The call er will need to 176 // If the channel data array could not be created, just return. The call er will need to
179 // check that the desired number of channels were created. 177 // check that the desired number of channels were created.
180 if (!channelDataArray) 178 if (!channelDataArray)
181 return; 179 return;
182 180
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209 { 207 {
210 for (unsigned i = 0; i < m_channels.size(); ++i) { 208 for (unsigned i = 0; i < m_channels.size(); ++i) {
211 if (getChannelData(i)) 209 if (getChannelData(i))
212 getChannelData(i)->zeroRange(0, length()); 210 getChannelData(i)->zeroRange(0, length());
213 } 211 }
214 } 212 }
215 213
216 } // namespace blink 214 } // namespace blink
217 215
218 #endif // ENABLE(WEB_AUDIO) 216 #endif // ENABLE(WEB_AUDIO)
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