commit e303fcf68d6fee2bf9ee0c4f6fb330a2c3e41a01
author mike@reedtribe.org <mike@reedtribe.org@2bbb7eff-a529-9590-31e7-b0007b416f81> Thu Nov 17 02:16:43 2011 +0000
committer mike@reedtribe.org <mike@reedtribe.org@2bbb7eff-a529-9590-31e7-b0007b416f81> Thu Nov 17 02:16:43 2011 +0000
tree bb3c9b470ecdcf36cbd3ddf9532718097c42ede1
parent b03db4a366d7bdcea095983f4beaf9982e96fc21

add SkXfermode::IsMode() and use that in SkDevice



git-svn-id: http://skia.googlecode.com/svn/trunk@2703 2bbb7eff-a529-9590-31e7-b0007b416f81

src/core/SkXfermode.cpp

diff --git a/src/core/SkXfermode.cpp b/src/core/SkXfermode.cpp
index e4d34e1..3ddacad 100644
--- a/src/core/SkXfermode.cpp
+++ b/src/core/SkXfermode.cpp
@@ -1033,6 +1033,15 @@
     return xfer->asCoeff(src, dst);
 }
 
+bool SkXfermode::IsMode(SkXfermode* xfer, Mode mode) {
+    // if xfer==null then the mode is srcover
+    Mode m = kSrcOver_Mode;
+    if (xfer && !xfer->asMode(&m)) {
+        return false;
+    }
+    return mode == m;
+}
+
 ///////////////////////////////////////////////////////////////////////////////
 //////////// 16bit xfermode procs