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Side by Side Diff: third_party/WebKit/Source/modules/webaudio/PeriodicWave.cpp

Issue 2080623002: Revert "Remove OwnPtr from Blink." (Closed) Base URL: https://chromium.googlesource.com/chromium/src.git@master
Patch Set: Created 4 years, 6 months ago
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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"
29 #include "bindings/core/v8/ExceptionMessages.h" 30 #include "bindings/core/v8/ExceptionMessages.h"
30 #include "bindings/core/v8/ExceptionState.h" 31 #include "bindings/core/v8/ExceptionState.h"
31 #include "core/dom/ExceptionCode.h" 32 #include "core/dom/ExceptionCode.h"
32 #include "modules/webaudio/AbstractAudioContext.h" 33 #include "modules/webaudio/AbstractAudioContext.h"
33 #include "modules/webaudio/OscillatorNode.h" 34 #include "modules/webaudio/OscillatorNode.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"
38 #include <algorithm> 37 #include <algorithm>
39 #include <memory>
40 38
41 namespace blink { 39 namespace blink {
42 40
43 // The number of bands per octave. Each octave will have this many entries in t he wave tables. 41 // The number of bands per octave. Each octave will have this many entries in t he wave tables.
44 const unsigned kNumberOfOctaveBands = 3; 42 const unsigned kNumberOfOctaveBands = 3;
45 43
46 // The max length of a periodic wave. This must be a power of two greater than o r equal to 2048 and 44 // 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. 45 // must be supported by the FFT routines.
48 const unsigned kMaxPeriodicWaveSize = 16384; 46 const unsigned kMaxPeriodicWaveSize = 16384;
49 47
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237 realP[i] = 0; 235 realP[i] = 0;
238 imagP[i] = 0; 236 imagP[i] = 0;
239 } 237 }
240 238
241 // Clear packed-nyquist and any DC-offset. 239 // Clear packed-nyquist and any DC-offset.
242 realP[0] = 0; 240 realP[0] = 0;
243 imagP[0] = 0; 241 imagP[0] = 0;
244 242
245 // Create the band-limited table. 243 // Create the band-limited table.
246 unsigned waveSize = periodicWaveSize(); 244 unsigned waveSize = periodicWaveSize();
247 std::unique_ptr<AudioFloatArray> table = wrapUnique(new AudioFloatArray( waveSize)); 245 OwnPtr<AudioFloatArray> table = adoptPtr(new AudioFloatArray(waveSize));
248 adjustV8ExternalMemory(waveSize * sizeof(float)); 246 adjustV8ExternalMemory(waveSize * sizeof(float));
249 m_bandLimitedTables.append(std::move(table)); 247 m_bandLimitedTables.append(std::move(table));
250 248
251 // Apply an inverse FFT to generate the time-domain table data. 249 // Apply an inverse FFT to generate the time-domain table data.
252 float* data = m_bandLimitedTables[rangeIndex]->data(); 250 float* data = m_bandLimitedTables[rangeIndex]->data();
253 frame.doInverseFFT(data); 251 frame.doInverseFFT(data);
254 252
255 // For the first range (which has the highest power), calculate its peak value then compute normalization scale. 253 // For the first range (which has the highest power), calculate its peak value then compute normalization scale.
256 if (!disableNormalization) { 254 if (!disableNormalization) {
257 if (!rangeIndex) { 255 if (!rangeIndex) {
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344 342
345 realP[n] = 0; 343 realP[n] = 0;
346 imagP[n] = b; 344 imagP[n] = b;
347 } 345 }
348 346
349 createBandLimitedTables(realP, imagP, halfSize, false); 347 createBandLimitedTables(realP, imagP, halfSize, false);
350 } 348 }
351 349
352 } // namespace blink 350 } // namespace blink
353 351
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