| OLD | NEW |
| 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 |
| (...skipping 11 matching lines...) Expand all Loading... |
| 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 "bindings/core/v8/ExceptionMessages.h" | 29 #include "bindings/core/v8/ExceptionMessages.h" |
| 30 #include "bindings/core/v8/ExceptionState.h" | 30 #include "bindings/core/v8/ExceptionState.h" |
| 31 #include "core/dom/ExceptionCode.h" | 31 #include "core/dom/ExceptionCode.h" |
| 32 #include "modules/webaudio/AbstractAudioContext.h" | 32 #include "modules/webaudio/BaseAudioContext.h" |
| 33 #include "modules/webaudio/OscillatorNode.h" | 33 #include "modules/webaudio/OscillatorNode.h" |
| 34 #include "modules/webaudio/PeriodicWave.h" | 34 #include "modules/webaudio/PeriodicWave.h" |
| 35 #include "platform/audio/FFTFrame.h" | 35 #include "platform/audio/FFTFrame.h" |
| 36 #include "platform/audio/VectorMath.h" | 36 #include "platform/audio/VectorMath.h" |
| 37 #include "wtf/PtrUtil.h" | 37 #include "wtf/PtrUtil.h" |
| 38 #include <algorithm> | 38 #include <algorithm> |
| 39 #include <memory> | 39 #include <memory> |
| 40 | 40 |
| 41 namespace blink { | 41 namespace blink { |
| 42 | 42 |
| 43 // The number of bands per octave. Each octave will have this many entries in t
he wave tables. | 43 // The number of bands per octave. Each octave will have this many entries in t
he wave tables. |
| 44 const unsigned kNumberOfOctaveBands = 3; | 44 const unsigned kNumberOfOctaveBands = 3; |
| 45 | 45 |
| 46 // The max length of a periodic wave. This must be a power of two greater than o
r equal to 2048 and | 46 // The max length of a periodic wave. This must be a power of two greater than o
r equal to 2048 and |
| 47 // must be supported by the FFT routines. | 47 // must be supported by the FFT routines. |
| 48 const unsigned kMaxPeriodicWaveSize = 16384; | 48 const unsigned kMaxPeriodicWaveSize = 16384; |
| 49 | 49 |
| 50 const float CentsPerRange = 1200 / kNumberOfOctaveBands; | 50 const float CentsPerRange = 1200 / kNumberOfOctaveBands; |
| 51 | 51 |
| 52 using namespace VectorMath; | 52 using namespace VectorMath; |
| 53 | 53 |
| 54 PeriodicWave* PeriodicWave::create( | 54 PeriodicWave* PeriodicWave::create( |
| 55 AbstractAudioContext& context, | 55 BaseAudioContext& context, |
| 56 DOMFloat32Array* real, | 56 DOMFloat32Array* real, |
| 57 DOMFloat32Array* imag, | 57 DOMFloat32Array* imag, |
| 58 bool disableNormalization, | 58 bool disableNormalization, |
| 59 ExceptionState& exceptionState) | 59 ExceptionState& exceptionState) |
| 60 { | 60 { |
| 61 DCHECK(isMainThread()); | 61 DCHECK(isMainThread()); |
| 62 | 62 |
| 63 if (context.isContextClosed()) { | 63 if (context.isContextClosed()) { |
| 64 context.throwExceptionForClosedState(exceptionState); | 64 context.throwExceptionForClosedState(exceptionState); |
| 65 return nullptr; | 65 return nullptr; |
| (...skipping 278 matching lines...) Expand 10 before | Expand all | Expand 10 after Loading... |
| 344 | 344 |
| 345 realP[n] = 0; | 345 realP[n] = 0; |
| 346 imagP[n] = b; | 346 imagP[n] = b; |
| 347 } | 347 } |
| 348 | 348 |
| 349 createBandLimitedTables(realP, imagP, halfSize, false); | 349 createBandLimitedTables(realP, imagP, halfSize, false); |
| 350 } | 350 } |
| 351 | 351 |
| 352 } // namespace blink | 352 } // namespace blink |
| 353 | 353 |
| OLD | NEW |