fast return if no part of the paint gets replaced

git-svn-id: http://skia.googlecode.com/svn/trunk@1088 2bbb7eff-a529-9590-31e7-b0007b416f81
2011-04-09 18:54:08 +00:00 · 2011-04-09 18:54:08 +00:00 · 3c1225bee4
commit 3c1225bee4
parent 9283b583ab
1 changed files with 3 additions and 0 deletions
--- a/src/effects/SkLayerDrawLooper.cpp
+++ b/src/effects/SkLayerDrawLooper.cpp
@ -35,6 +35,9 @@ void SkLayerDrawLooper::init(SkCanvas* canvas) {

 void SkLayerDrawLooper::ApplyBits(SkPaint* dst, const SkPaint& src,
                                  BitFlags bits) {
+    if (0 == bits) {
+        return;
+    }
    if (kEntirePaint_Bits == bits) {
        *dst = src;
        return;