commit f3b995b628ef76bff28b9721dd1e182336156086
author Brian Salomon <bsalomon@google.com> Wed Feb 15 10:22:23 2017 -0500
committer Skia Commit-Bot <skia-commit-bot@chromium.org> Wed Feb 15 17:27:10 2017 +0000
tree a0a0dcb7d12934495c445a73fe18bae9fda42bb7
parent 2b512d00ef8d6a8eb200396ab0a64294e84c4fa4

Clarify when tweak alpha for coverage optimizaton can occur.

Also refer to it directly rather than using the term "modulate"

Change-Id: Ifa44a4d46e1be11b567943f58ead24e38f10d03b
Reviewed-on: https://skia-review.googlesource.com/8488
Reviewed-by: Greg Daniel <egdaniel@google.com>
Commit-Queue: Brian Salomon <bsalomon@google.com>

src/gpu/effects/GrMatrixConvolutionEffect.cpp

diff --git a/src/gpu/effects/GrMatrixConvolutionEffect.cpp b/src/gpu/effects/GrMatrixConvolutionEffect.cpp
index fc8add8..0cae0ba 100644
--- a/src/gpu/effects/GrMatrixConvolutionEffect.cpp
+++ b/src/gpu/effects/GrMatrixConvolutionEffect.cpp
@@ -159,7 +159,8 @@
                                                      GrTextureDomain::Mode tileMode,
                                                      bool convolveAlpha)
         // To advertise the preserves opaqueness optimization we'd have to examine the parameters.
-        : INHERITED(texture, nullptr, SkMatrix::I(), kModulatesInput_OptimizationFlag)
+        : INHERITED(texture, nullptr, SkMatrix::I(),
+                    kCompatibleWithCoverageAsAlpha_OptimizationFlag)
         , fKernelSize(kernelSize)
         , fGain(SkScalarToFloat(gain))
         , fBias(SkScalarToFloat(bias) / 255.0f)