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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 |
| 11 * notice, this list of conditions and the following disclaimer in the | 11 * notice, this list of conditions and the following disclaimer in the |
| 12 * documentation and/or other materials provided with the distribution. | 12 * documentation and/or other materials provided with the distribution. |
| 13 * 3. Neither the name of Apple Computer, Inc. ("Apple") nor the names of | 13 * 3. Neither the name of Apple Computer, Inc. ("Apple") nor the names of |
| 14 * its contributors may be used to endorse or promote products derived | 14 * its contributors may be used to endorse or promote products derived |
| 15 * from this software without specific prior written permission. | 15 * from this software without specific prior written permission. |
| 16 * | 16 * |
| 17 * THIS SOFTWARE IS PROVIDED BY APPLE AND ITS CONTRIBUTORS "AS IS" AND ANY | 17 * THIS SOFTWARE IS PROVIDED BY APPLE AND ITS CONTRIBUTORS "AS IS" AND ANY |
| 18 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED | 18 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED |
| 19 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE | 19 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE |
| 20 * DISCLAIMED. IN NO EVENT SHALL APPLE OR ITS CONTRIBUTORS BE LIABLE FOR ANY | 20 * DISCLAIMED. IN NO EVENT SHALL APPLE OR ITS CONTRIBUTORS BE LIABLE FOR ANY |
| 21 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES | 21 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES |
| 22 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; | 22 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; |
| 23 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND | 23 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND |
| 24 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT | 24 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| 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 "platform/audio/ReverbConvolver.h" | 29 #include "platform/audio/ReverbConvolver.h" |
| 30 #include "platform/Task.h" | |
| 31 #include "platform/ThreadSafeFunctional.h" | 30 #include "platform/ThreadSafeFunctional.h" |
| 32 #include "platform/audio/AudioBus.h" | 31 #include "platform/audio/AudioBus.h" |
| 33 #include "platform/audio/VectorMath.h" | 32 #include "platform/audio/VectorMath.h" |
| 34 #include "public/platform/Platform.h" | 33 #include "public/platform/Platform.h" |
| 34 #include "public/platform/WebTaskRunner.h" |
| 35 #include "public/platform/WebThread.h" | 35 #include "public/platform/WebThread.h" |
| 36 #include "public/platform/WebTraceLocation.h" | 36 #include "public/platform/WebTraceLocation.h" |
| 37 | 37 |
| 38 namespace blink { | 38 namespace blink { |
| 39 | 39 |
| 40 using namespace VectorMath; | 40 using namespace VectorMath; |
| 41 | 41 |
| 42 const int InputBufferSize = 8 * 16384; | 42 const int InputBufferSize = 8 * 16384; |
| 43 | 43 |
| 44 // We only process the leading portion of the impulse response in the real-time
thread. We don't exceed this length. | 44 // We only process the leading portion of the impulse response in the real-time
thread. We don't exceed this length. |
| (...skipping 117 matching lines...) Expand 10 before | Expand all | Expand 10 after Loading... |
| 162 | 162 |
| 163 // Accumulate contributions from each stage | 163 // Accumulate contributions from each stage |
| 164 for (size_t i = 0; i < m_stages.size(); ++i) | 164 for (size_t i = 0; i < m_stages.size(); ++i) |
| 165 m_stages[i]->process(source, framesToProcess); | 165 m_stages[i]->process(source, framesToProcess); |
| 166 | 166 |
| 167 // Finally read from accumulation buffer | 167 // Finally read from accumulation buffer |
| 168 m_accumulationBuffer.readAndClear(destination, framesToProcess); | 168 m_accumulationBuffer.readAndClear(destination, framesToProcess); |
| 169 | 169 |
| 170 // Now that we've buffered more input, post another task to the background t
hread. | 170 // Now that we've buffered more input, post another task to the background t
hread. |
| 171 if (m_backgroundThread) | 171 if (m_backgroundThread) |
| 172 m_backgroundThread->taskRunner()->postTask(BLINK_FROM_HERE, new Task(thr
eadSafeBind(&ReverbConvolver::processInBackground, AllowCrossThreadAccess(this))
)); | 172 m_backgroundThread->taskRunner()->postTask(BLINK_FROM_HERE, threadSafeBi
nd(&ReverbConvolver::processInBackground, AllowCrossThreadAccess(this))); |
| 173 } | 173 } |
| 174 | 174 |
| 175 void ReverbConvolver::reset() | 175 void ReverbConvolver::reset() |
| 176 { | 176 { |
| 177 for (size_t i = 0; i < m_stages.size(); ++i) | 177 for (size_t i = 0; i < m_stages.size(); ++i) |
| 178 m_stages[i]->reset(); | 178 m_stages[i]->reset(); |
| 179 | 179 |
| 180 for (size_t i = 0; i < m_backgroundStages.size(); ++i) | 180 for (size_t i = 0; i < m_backgroundStages.size(); ++i) |
| 181 m_backgroundStages[i]->reset(); | 181 m_backgroundStages[i]->reset(); |
| 182 | 182 |
| 183 m_accumulationBuffer.reset(); | 183 m_accumulationBuffer.reset(); |
| 184 m_inputBuffer.reset(); | 184 m_inputBuffer.reset(); |
| 185 } | 185 } |
| 186 | 186 |
| 187 size_t ReverbConvolver::latencyFrames() const | 187 size_t ReverbConvolver::latencyFrames() const |
| 188 { | 188 { |
| 189 return 0; | 189 return 0; |
| 190 } | 190 } |
| 191 | 191 |
| 192 } // namespace blink | 192 } // namespace blink |
| 193 | |
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