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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 * 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 |
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| 124 return m_outputs[i].get(); | 124 return m_outputs[i].get(); |
| 125 return 0; | 125 return 0; |
| 126 } | 126 } |
| 127 | 127 |
| 128 void AudioNode::connect(AudioNode* destination, unsigned outputIndex, unsigned i
nputIndex, ExceptionCode& ec) | 128 void AudioNode::connect(AudioNode* destination, unsigned outputIndex, unsigned i
nputIndex, ExceptionCode& ec) |
| 129 { | 129 { |
| 130 ASSERT(isMainThread()); | 130 ASSERT(isMainThread()); |
| 131 AudioContext::AutoLocker locker(context()); | 131 AudioContext::AutoLocker locker(context()); |
| 132 | 132 |
| 133 if (!destination) { | 133 if (!destination) { |
| 134 ec = SYNTAX_ERR; | 134 ec = SyntaxError; |
| 135 return; | 135 return; |
| 136 } | 136 } |
| 137 | 137 |
| 138 // Sanity check input and output indices. | 138 // Sanity check input and output indices. |
| 139 if (outputIndex >= numberOfOutputs()) { | 139 if (outputIndex >= numberOfOutputs()) { |
| 140 ec = IndexSizeError; | 140 ec = IndexSizeError; |
| 141 return; | 141 return; |
| 142 } | 142 } |
| 143 | 143 |
| 144 if (destination && inputIndex >= destination->numberOfInputs()) { | 144 if (destination && inputIndex >= destination->numberOfInputs()) { |
| 145 ec = IndexSizeError; | 145 ec = IndexSizeError; |
| 146 return; | 146 return; |
| 147 } | 147 } |
| 148 | 148 |
| 149 if (context() != destination->context()) { | 149 if (context() != destination->context()) { |
| 150 ec = SYNTAX_ERR; | 150 ec = SyntaxError; |
| 151 return; | 151 return; |
| 152 } | 152 } |
| 153 | 153 |
| 154 AudioNodeInput* input = destination->input(inputIndex); | 154 AudioNodeInput* input = destination->input(inputIndex); |
| 155 AudioNodeOutput* output = this->output(outputIndex); | 155 AudioNodeOutput* output = this->output(outputIndex); |
| 156 input->connect(output); | 156 input->connect(output); |
| 157 | 157 |
| 158 // Let context know that a connection has been made. | 158 // Let context know that a connection has been made. |
| 159 context()->incrementConnectionCount(); | 159 context()->incrementConnectionCount(); |
| 160 } | 160 } |
| 161 | 161 |
| 162 void AudioNode::connect(AudioParam* param, unsigned outputIndex, ExceptionCode&
ec) | 162 void AudioNode::connect(AudioParam* param, unsigned outputIndex, ExceptionCode&
ec) |
| 163 { | 163 { |
| 164 ASSERT(isMainThread()); | 164 ASSERT(isMainThread()); |
| 165 AudioContext::AutoLocker locker(context()); | 165 AudioContext::AutoLocker locker(context()); |
| 166 | 166 |
| 167 if (!param) { | 167 if (!param) { |
| 168 ec = SYNTAX_ERR; | 168 ec = SyntaxError; |
| 169 return; | 169 return; |
| 170 } | 170 } |
| 171 | 171 |
| 172 if (outputIndex >= numberOfOutputs()) { | 172 if (outputIndex >= numberOfOutputs()) { |
| 173 ec = IndexSizeError; | 173 ec = IndexSizeError; |
| 174 return; | 174 return; |
| 175 } | 175 } |
| 176 | 176 |
| 177 if (context() != param->context()) { | 177 if (context() != param->context()) { |
| 178 ec = SYNTAX_ERR; | 178 ec = SyntaxError; |
| 179 return; | 179 return; |
| 180 } | 180 } |
| 181 | 181 |
| 182 AudioNodeOutput* output = this->output(outputIndex); | 182 AudioNodeOutput* output = this->output(outputIndex); |
| 183 param->connect(output); | 183 param->connect(output); |
| 184 } | 184 } |
| 185 | 185 |
| 186 void AudioNode::disconnect(unsigned outputIndex, ExceptionCode& ec) | 186 void AudioNode::disconnect(unsigned outputIndex, ExceptionCode& ec) |
| 187 { | 187 { |
| 188 ASSERT(isMainThread()); | 188 ASSERT(isMainThread()); |
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| 207 { | 207 { |
| 208 ASSERT(isMainThread()); | 208 ASSERT(isMainThread()); |
| 209 AudioContext::AutoLocker locker(context()); | 209 AudioContext::AutoLocker locker(context()); |
| 210 | 210 |
| 211 if (channelCount > 0 && channelCount <= AudioContext::maxNumberOfChannels())
{ | 211 if (channelCount > 0 && channelCount <= AudioContext::maxNumberOfChannels())
{ |
| 212 if (m_channelCount != channelCount) { | 212 if (m_channelCount != channelCount) { |
| 213 m_channelCount = channelCount; | 213 m_channelCount = channelCount; |
| 214 if (m_channelCountMode != Max) | 214 if (m_channelCountMode != Max) |
| 215 updateChannelsForInputs(); | 215 updateChannelsForInputs(); |
| 216 } | 216 } |
| 217 } else | 217 } else { |
| 218 ec = INVALID_STATE_ERR; | 218 ec = InvalidStateError; |
| 219 } |
| 219 } | 220 } |
| 220 | 221 |
| 221 String AudioNode::channelCountMode() | 222 String AudioNode::channelCountMode() |
| 222 { | 223 { |
| 223 switch (m_channelCountMode) { | 224 switch (m_channelCountMode) { |
| 224 case Max: | 225 case Max: |
| 225 return "max"; | 226 return "max"; |
| 226 case ClampedMax: | 227 case ClampedMax: |
| 227 return "clamped-max"; | 228 return "clamped-max"; |
| 228 case Explicit: | 229 case Explicit: |
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| 239 | 240 |
| 240 ChannelCountMode oldMode = m_channelCountMode; | 241 ChannelCountMode oldMode = m_channelCountMode; |
| 241 | 242 |
| 242 if (mode == "max") | 243 if (mode == "max") |
| 243 m_channelCountMode = Max; | 244 m_channelCountMode = Max; |
| 244 else if (mode == "clamped-max") | 245 else if (mode == "clamped-max") |
| 245 m_channelCountMode = ClampedMax; | 246 m_channelCountMode = ClampedMax; |
| 246 else if (mode == "explicit") | 247 else if (mode == "explicit") |
| 247 m_channelCountMode = Explicit; | 248 m_channelCountMode = Explicit; |
| 248 else | 249 else |
| 249 ec = INVALID_STATE_ERR; | 250 ec = InvalidStateError; |
| 250 | 251 |
| 251 if (m_channelCountMode != oldMode) | 252 if (m_channelCountMode != oldMode) |
| 252 updateChannelsForInputs(); | 253 updateChannelsForInputs(); |
| 253 } | 254 } |
| 254 | 255 |
| 255 String AudioNode::channelInterpretation() | 256 String AudioNode::channelInterpretation() |
| 256 { | 257 { |
| 257 switch (m_channelInterpretation) { | 258 switch (m_channelInterpretation) { |
| 258 case AudioBus::Speakers: | 259 case AudioBus::Speakers: |
| 259 return "speakers"; | 260 return "speakers"; |
| 260 case AudioBus::Discrete: | 261 case AudioBus::Discrete: |
| 261 return "discrete"; | 262 return "discrete"; |
| 262 } | 263 } |
| 263 ASSERT_NOT_REACHED(); | 264 ASSERT_NOT_REACHED(); |
| 264 return ""; | 265 return ""; |
| 265 } | 266 } |
| 266 | 267 |
| 267 void AudioNode::setChannelInterpretation(const String& interpretation, Exception
Code& ec) | 268 void AudioNode::setChannelInterpretation(const String& interpretation, Exception
Code& ec) |
| 268 { | 269 { |
| 269 ASSERT(isMainThread()); | 270 ASSERT(isMainThread()); |
| 270 AudioContext::AutoLocker locker(context()); | 271 AudioContext::AutoLocker locker(context()); |
| 271 | 272 |
| 272 if (interpretation == "speakers") | 273 if (interpretation == "speakers") |
| 273 m_channelInterpretation = AudioBus::Speakers; | 274 m_channelInterpretation = AudioBus::Speakers; |
| 274 else if (interpretation == "discrete") | 275 else if (interpretation == "discrete") |
| 275 m_channelInterpretation = AudioBus::Discrete; | 276 m_channelInterpretation = AudioBus::Discrete; |
| 276 else | 277 else |
| 277 ec = INVALID_STATE_ERR; | 278 ec = InvalidStateError; |
| 278 } | 279 } |
| 279 | 280 |
| 280 void AudioNode::updateChannelsForInputs() | 281 void AudioNode::updateChannelsForInputs() |
| 281 { | 282 { |
| 282 for (unsigned i = 0; i < m_inputs.size(); ++i) | 283 for (unsigned i = 0; i < m_inputs.size(); ++i) |
| 283 input(i)->changedOutputs(); | 284 input(i)->changedOutputs(); |
| 284 } | 285 } |
| 285 | 286 |
| 286 const AtomicString& AudioNode::interfaceName() const | 287 const AtomicString& AudioNode::interfaceName() const |
| 287 { | 288 { |
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| 527 fprintf(stderr, "%d: %d\n", i, s_nodeCount[i]); | 528 fprintf(stderr, "%d: %d\n", i, s_nodeCount[i]); |
| 528 | 529 |
| 529 fprintf(stderr, "===========================\n\n\n"); | 530 fprintf(stderr, "===========================\n\n\n"); |
| 530 } | 531 } |
| 531 | 532 |
| 532 #endif // DEBUG_AUDIONODE_REFERENCES | 533 #endif // DEBUG_AUDIONODE_REFERENCES |
| 533 | 534 |
| 534 } // namespace WebCore | 535 } // namespace WebCore |
| 535 | 536 |
| 536 #endif // ENABLE(WEB_AUDIO) | 537 #endif // ENABLE(WEB_AUDIO) |
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