From: commit-bot@chromium.org <commit-bot@chromium.org@2bbb7eff-a529-9590-31e7-b0007b416f81>
Date: Thu, 15 Aug 2013 18:16:07 +0000 (+0000)
Subject: Add missing fallback blending to SkA8_Shader_Blitter::blitMask()
X-Git-Tag: accepted/tizen/5.0/unified/20181102.025319~11257
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=96583db7990ec524b6410c539518ebbc9844c5ec;p=platform%2Fupstream%2FlibSkiaSharp.git

Add missing fallback blending to SkA8_Shader_Blitter::blitMask()

Similarly to SkA8_Shader_Blitter::blitAntiH() and SkA8_Shader_Blitter::blitH(), blitMask() should handle a missing SkXfermode gracefully.

R=reed@google.com

Author: fmalita@chromium.org

Review URL: https://chromiumcodereview.appspot.com/22867008

git-svn-id: http://skia.googlecode.com/svn/trunk@10743 2bbb7eff-a529-9590-31e7-b0007b416f81
---

diff --git a/src/core/SkBlitter_A8.cpp b/src/core/SkBlitter_A8.cpp
index 0255464..7fca29e 100644
--- a/src/core/SkBlitter_A8.cpp
+++ b/src/core/SkBlitter_A8.cpp
@@ -336,6 +336,10 @@ void SkA8_Shader_Blitter::blitMask(const SkMask& mask, const SkIRect& clip) {
         fShader->shadeSpan(x, y, span, width);
         if (fXfermode) {
             fXfermode->xferA8(device, span, width, alpha);
+        } else {
+            for (int i = width - 1; i >= 0; --i) {
+                device[i] = aa_blend8(span[i], device[i], alpha[i]);
+            }
         }
 
         y += 1;