Check for divide by zero in fill_in_2D_gaussian_kernel

Same change as the 1D one, but now with more dimensions!!

Bug: skia:7769
Change-Id: I152031780ab71ba106d4fa65d52960ec4358274e
Reviewed-on: https://skia-review.googlesource.com/118262
Commit-Queue: Greg Daniel <egdaniel@google.com>
Reviewed-by: Brian Osman <brianosman@google.com>

1 files changed, 1 insertions, 1 deletions

diff --git a/src/gpu/effects/GrGaussianConvolutionFragmentProcessor.cpp b/src/gpu/effects/GrGaussianConvolutionFragmentProcessor.cpp
index 121e225796..fdd4990328 100644
--- a/src/gpu/effects/GrGaussianConvolutionFragmentProcessor.cpp
+++ b/src/gpu/effects/GrGaussianConvolutionFragmentProcessor.cpp
@@ -177,7 +177,7 @@ void GrGLConvolutionEffect::GenKey(const GrProcessor& processor, const GrShaderC
 
 ///////////////////////////////////////////////////////////////////////////////
 static void fill_in_1D_gaussian_kernel(float* kernel, int width, float gaussianSigma, int radius) {
-    float twoSigmaSqrd = 2.0f * gaussianSigma * gaussianSigma;
+    const float twoSigmaSqrd = 2.0f * gaussianSigma * gaussianSigma;
     if (SkScalarNearlyZero(twoSigmaSqrd, SK_ScalarNearlyZero)) {
         for (int i = 0; i < width; ++i) {
             kernel[i] = 0.0f;