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

Issue 403013002: Rename WebCore to blink in Modules (Closed) Base URL: svn://svn.chromium.org/blink/trunk
Patch Set: Created 6 years, 5 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
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34 34
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 "modules/webaudio/OscillatorNode.h" 37 #include "modules/webaudio/OscillatorNode.h"
38 #include <algorithm> 38 #include <algorithm>
39 39
40 const unsigned PeriodicWaveSize = 4096; // This must be a power of two. 40 const unsigned PeriodicWaveSize = 4096; // This must be a power of two.
41 const unsigned NumberOfRanges = 36; // There should be 3 * log2(PeriodicWaveSize ) 1/3 octave ranges. 41 const unsigned NumberOfRanges = 36; // There should be 3 * log2(PeriodicWaveSize ) 1/3 octave ranges.
42 const float CentsPerRange = 1200 / 3; // 1/3 Octave. 42 const float CentsPerRange = 1200 / 3; // 1/3 Octave.
43 43
44 namespace WebCore { 44 namespace blink {
45 45
46 using namespace VectorMath; 46 using namespace VectorMath;
47 47
48 PassRefPtrWillBeRawPtr<PeriodicWave> PeriodicWave::create(float sampleRate, Floa t32Array* real, Float32Array* imag) 48 PassRefPtrWillBeRawPtr<PeriodicWave> PeriodicWave::create(float sampleRate, Floa t32Array* real, Float32Array* imag)
49 { 49 {
50 bool isGood = real && imag && real->length() == imag->length(); 50 bool isGood = real && imag && real->length() == imag->length();
51 ASSERT(isGood); 51 ASSERT(isGood);
52 if (isGood) { 52 if (isGood) {
53 RefPtrWillBeRawPtr<PeriodicWave> periodicWave = adoptRefWillBeNoop(new P eriodicWave(sampleRate)); 53 RefPtrWillBeRawPtr<PeriodicWave> periodicWave = adoptRefWillBeNoop(new P eriodicWave(sampleRate));
54 size_t numberOfComponents = real->length(); 54 size_t numberOfComponents = real->length();
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293 break; 293 break;
294 } 294 }
295 295
296 realP[n] = 0; 296 realP[n] = 0;
297 imagP[n] = b; 297 imagP[n] = b;
298 } 298 }
299 299
300 createBandLimitedTables(realP, imagP, halfSize); 300 createBandLimitedTables(realP, imagP, halfSize);
301 } 301 }
302 302
303 } // namespace WebCore 303 } // namespace blink
304 304
305 #endif // ENABLE(WEB_AUDIO) 305 #endif // ENABLE(WEB_AUDIO)
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