Index: third_party/WebKit/Source/modules/webaudio/WaveShaperDSPKernel.cpp |
diff --git a/third_party/WebKit/Source/modules/webaudio/WaveShaperDSPKernel.cpp b/third_party/WebKit/Source/modules/webaudio/WaveShaperDSPKernel.cpp |
index 53c0dd7946175059fe4feec0db361efa8a03ccfb..f6ee2945ba3ecda28f905c7358dc53e29613d911 100644 |
--- a/third_party/WebKit/Source/modules/webaudio/WaveShaperDSPKernel.cpp |
+++ b/third_party/WebKit/Source/modules/webaudio/WaveShaperDSPKernel.cpp |
@@ -96,9 +96,9 @@ void WaveShaperDSPKernel::processCurve(const float* source, |
for (unsigned i = 0; i < framesToProcess; ++i) { |
const float input = source[i]; |
- // Calculate a virtual index based on input -1 -> +1 with -1 being curve[0], +1 being |
- // curve[curveLength - 1], and 0 being at the center of the curve data. Then linearly |
- // interpolate between the two points in the curve. |
+ // Calculate a virtual index based on input -1 -> +1 with -1 being curve[0], |
+ // +1 being curve[curveLength - 1], and 0 being at the center of the curve |
+ // data. Then linearly interpolate between the two points in the curve. |
double virtualIndex = 0.5 * (input + 1) * (curveLength - 1); |
double output; |
@@ -109,8 +109,9 @@ void WaveShaperDSPKernel::processCurve(const float* source, |
// input >= 1, so use last curve value |
output = curveData[curveLength - 1]; |
} else { |
- // The general case where -1 <= input < 1, where 0 <= virtualIndex < curveLength - 1, |
- // so interpolate between the nearest samples on the curve. |
+ // The general case where -1 <= input < 1, where 0 <= virtualIndex < |
+ // curveLength - 1, so interpolate between the nearest samples on the |
+ // curve. |
unsigned index1 = static_cast<unsigned>(virtualIndex); |
unsigned index2 = index1 + 1; |
double interpolationFactor = virtualIndex - index1; |