From 467ddc0b24a63ee1525fa18d1dcf62e47975588a Mon Sep 17 00:00:00 2001
From: xidachen <xidachen@chromium.org>
Date: Thu, 10 Dec 2015 12:08:44 -0800
Subject: SkBlurImageFilter returns input when sigma = 0

In the current implementation, a blur filter is always created even in the
case when sigma.fX == 0 && sigma.fY == 0. This CL makes the blur filter
return input in this case.

BUG=568393

Review URL: https://codereview.chromium.org/1518643002
---
 gm/imageblur.cpp | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

(limited to 'gm/imageblur.cpp')

diff --git a/gm/imageblur.cpp b/gm/imageblur.cpp
index 575f02c095..22ea408e27 100644
--- a/gm/imageblur.cpp
+++ b/gm/imageblur.cpp
@@ -14,7 +14,8 @@
 
 void imageblurgm_draw(SkScalar fSigmaX, SkScalar fSigmaY, SkCanvas* canvas) {
         SkPaint paint;
-        paint.setImageFilter(SkBlurImageFilter::Create(fSigmaX, fSigmaY))->unref();
+        SkAutoTUnref<SkImageFilter> blur(SkBlurImageFilter::Create(fSigmaX, fSigmaY));
+        paint.setImageFilter(blur);
         canvas->saveLayer(nullptr, &paint);
         const char* str = "The quick brown fox jumped over the lazy dog.";
 
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