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

Issue 1773813007: blink: Rename modules/ method to prefix with get when they collide. (Closed) Base URL: https://chromium.googlesource.com/chromium/src.git@master
Patch Set: clash-modules: rebase-fixes Created 4 years, 9 months ago
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1 /* 1 /*
2 * Copyright (C) 2011, Google Inc. All rights reserved. 2 * Copyright (C) 2011, 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 * 1. Redistributions of source code must retain the above copyright 7 * 1. Redistributions of source code must retain the above copyright
8 * notice, this list of conditions and the following disclaimer. 8 * notice, this list of conditions and the following disclaimer.
9 * 2. Redistributions in binary form must reproduce the above copyright 9 * 2. Redistributions in binary form must reproduce the above copyright
10 * notice, this list of conditions and the following disclaimer in the 10 * notice, this list of conditions and the following disclaimer in the
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45 m_tempBuffer2 = adoptPtr(new AudioFloatArray(RenderingQuantum * 4)); 45 m_tempBuffer2 = adoptPtr(new AudioFloatArray(RenderingQuantum * 4));
46 m_upSampler = adoptPtr(new UpSampler(RenderingQuantum)); 46 m_upSampler = adoptPtr(new UpSampler(RenderingQuantum));
47 m_downSampler = adoptPtr(new DownSampler(RenderingQuantum * 2)); 47 m_downSampler = adoptPtr(new DownSampler(RenderingQuantum * 2));
48 m_upSampler2 = adoptPtr(new UpSampler(RenderingQuantum * 2)); 48 m_upSampler2 = adoptPtr(new UpSampler(RenderingQuantum * 2));
49 m_downSampler2 = adoptPtr(new DownSampler(RenderingQuantum * 4)); 49 m_downSampler2 = adoptPtr(new DownSampler(RenderingQuantum * 4));
50 } 50 }
51 } 51 }
52 52
53 void WaveShaperDSPKernel::process(const float* source, float* destination, size_ t framesToProcess) 53 void WaveShaperDSPKernel::process(const float* source, float* destination, size_ t framesToProcess)
54 { 54 {
55 switch (waveShaperProcessor()->oversample()) { 55 switch (getWaveShaperProcessor()->oversample()) {
56 case WaveShaperProcessor::OverSampleNone: 56 case WaveShaperProcessor::OverSampleNone:
57 processCurve(source, destination, framesToProcess); 57 processCurve(source, destination, framesToProcess);
58 break; 58 break;
59 case WaveShaperProcessor::OverSample2x: 59 case WaveShaperProcessor::OverSample2x:
60 processCurve2x(source, destination, framesToProcess); 60 processCurve2x(source, destination, framesToProcess);
61 break; 61 break;
62 case WaveShaperProcessor::OverSample4x: 62 case WaveShaperProcessor::OverSample4x:
63 processCurve4x(source, destination, framesToProcess); 63 processCurve4x(source, destination, framesToProcess);
64 break; 64 break;
65 65
66 default: 66 default:
67 ASSERT_NOT_REACHED(); 67 ASSERT_NOT_REACHED();
68 } 68 }
69 } 69 }
70 70
71 void WaveShaperDSPKernel::processCurve(const float* source, float* destination, size_t framesToProcess) 71 void WaveShaperDSPKernel::processCurve(const float* source, float* destination, size_t framesToProcess)
72 { 72 {
73 ASSERT(source); 73 ASSERT(source);
74 ASSERT(destination); 74 ASSERT(destination);
75 ASSERT(waveShaperProcessor()); 75 ASSERT(getWaveShaperProcessor());
76 76
77 DOMFloat32Array* curve = waveShaperProcessor()->curve(); 77 DOMFloat32Array* curve = getWaveShaperProcessor()->curve();
78 if (!curve) { 78 if (!curve) {
79 // Act as "straight wire" pass-through if no curve is set. 79 // Act as "straight wire" pass-through if no curve is set.
80 memcpy(destination, source, sizeof(float) * framesToProcess); 80 memcpy(destination, source, sizeof(float) * framesToProcess);
81 return; 81 return;
82 } 82 }
83 83
84 float* curveData = curve->data(); 84 float* curveData = curve->data();
85 int curveLength = curve->length(); 85 int curveLength = curve->length();
86 86
87 ASSERT(curveData); 87 ASSERT(curveData);
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168 m_upSampler2->reset(); 168 m_upSampler2->reset();
169 m_downSampler2->reset(); 169 m_downSampler2->reset();
170 } 170 }
171 } 171 }
172 172
173 double WaveShaperDSPKernel::latencyTime() const 173 double WaveShaperDSPKernel::latencyTime() const
174 { 174 {
175 size_t latencyFrames = 0; 175 size_t latencyFrames = 0;
176 WaveShaperDSPKernel* kernel = const_cast<WaveShaperDSPKernel*>(this); 176 WaveShaperDSPKernel* kernel = const_cast<WaveShaperDSPKernel*>(this);
177 177
178 switch (kernel->waveShaperProcessor()->oversample()) { 178 switch (kernel->getWaveShaperProcessor()->oversample()) {
179 case WaveShaperProcessor::OverSampleNone: 179 case WaveShaperProcessor::OverSampleNone:
180 break; 180 break;
181 case WaveShaperProcessor::OverSample2x: 181 case WaveShaperProcessor::OverSample2x:
182 latencyFrames += m_upSampler->latencyFrames(); 182 latencyFrames += m_upSampler->latencyFrames();
183 latencyFrames += m_downSampler->latencyFrames(); 183 latencyFrames += m_downSampler->latencyFrames();
184 break; 184 break;
185 case WaveShaperProcessor::OverSample4x: 185 case WaveShaperProcessor::OverSample4x:
186 { 186 {
187 // Account for first stage upsampling. 187 // Account for first stage upsampling.
188 latencyFrames += m_upSampler->latencyFrames(); 188 latencyFrames += m_upSampler->latencyFrames();
189 latencyFrames += m_downSampler->latencyFrames(); 189 latencyFrames += m_downSampler->latencyFrames();
190 190
191 // Account for second stage upsampling. 191 // Account for second stage upsampling.
192 // and divide by 2 to get back down to the regular sample-rate. 192 // and divide by 2 to get back down to the regular sample-rate.
193 size_t latencyFrames2 = (m_upSampler2->latencyFrames() + m_downSampl er2->latencyFrames()) / 2; 193 size_t latencyFrames2 = (m_upSampler2->latencyFrames() + m_downSampl er2->latencyFrames()) / 2;
194 latencyFrames += latencyFrames2; 194 latencyFrames += latencyFrames2;
195 break; 195 break;
196 } 196 }
197 default: 197 default:
198 ASSERT_NOT_REACHED(); 198 ASSERT_NOT_REACHED();
199 } 199 }
200 200
201 return static_cast<double>(latencyFrames) / sampleRate(); 201 return static_cast<double>(latencyFrames) / sampleRate();
202 } 202 }
203 203
204 } // namespace blink 204 } // namespace blink
205 205
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