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| 1 /* | 1 /* |
| 2 * Copyright (C) 2012 Google Inc. All rights reserved. | 2 * Copyright (C) 2012 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 "modules/webaudio/PeriodicWave.h" |
| 30 #include <algorithm> |
| 31 #include <memory> |
| 29 #include "bindings/core/v8/ExceptionMessages.h" | 32 #include "bindings/core/v8/ExceptionMessages.h" |
| 30 #include "bindings/core/v8/ExceptionState.h" | 33 #include "bindings/core/v8/ExceptionState.h" |
| 31 #include "core/dom/ExceptionCode.h" | 34 #include "core/dom/ExceptionCode.h" |
| 32 #include "modules/webaudio/BaseAudioContext.h" | 35 #include "modules/webaudio/BaseAudioContext.h" |
| 33 #include "modules/webaudio/OscillatorNode.h" | 36 #include "modules/webaudio/OscillatorNode.h" |
| 34 #include "modules/webaudio/PeriodicWave.h" | |
| 35 #include "modules/webaudio/PeriodicWaveOptions.h" | 37 #include "modules/webaudio/PeriodicWaveOptions.h" |
| 36 #include "platform/audio/FFTFrame.h" | 38 #include "platform/audio/FFTFrame.h" |
| 37 #include "platform/audio/VectorMath.h" | 39 #include "platform/audio/VectorMath.h" |
| 38 #include "wtf/PtrUtil.h" | 40 #include "wtf/PtrUtil.h" |
| 39 #include <algorithm> | |
| 40 #include <memory> | |
| 41 | 41 |
| 42 namespace blink { | 42 namespace blink { |
| 43 | 43 |
| 44 // The number of bands per octave. Each octave will have this many entries in | 44 // The number of bands per octave. Each octave will have this many entries in |
| 45 // the wave tables. | 45 // the wave tables. |
| 46 const unsigned kNumberOfOctaveBands = 3; | 46 const unsigned kNumberOfOctaveBands = 3; |
| 47 | 47 |
| 48 // The max length of a periodic wave. This must be a power of two greater than | 48 // The max length of a periodic wave. This must be a power of two greater than |
| 49 // or equal to 2048 and must be supported by the FFT routines. | 49 // or equal to 2048 and must be supported by the FFT routines. |
| 50 const unsigned kMaxPeriodicWaveSize = 16384; | 50 const unsigned kMaxPeriodicWaveSize = 16384; |
| (...skipping 346 matching lines...) Expand 10 before | Expand all | Expand 10 after Loading... |
| 397 } | 397 } |
| 398 | 398 |
| 399 realP[n] = 0; | 399 realP[n] = 0; |
| 400 imagP[n] = b; | 400 imagP[n] = b; |
| 401 } | 401 } |
| 402 | 402 |
| 403 createBandLimitedTables(realP, imagP, halfSize, false); | 403 createBandLimitedTables(realP, imagP, halfSize, false); |
| 404 } | 404 } |
| 405 | 405 |
| 406 } // namespace blink | 406 } // namespace blink |
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