CG imagedecoder never sets isOpaque, so add method to SkBitmap to compute that,
and call it from CG imagedecoder.
Review URL: https://codereview.appspot.com/6816101
git-svn-id: http://skia.googlecode.com/svn/trunk@6334 2bbb7eff-a529-9590-31e7-b0007b416f81
diff --git a/src/ports/SkImageDecoder_CG.cpp b/src/ports/SkImageDecoder_CG.cpp
index bcd3e37..ba7a89c 100644
--- a/src/ports/SkImageDecoder_CG.cpp
+++ b/src/ports/SkImageDecoder_CG.cpp
@@ -6,6 +6,7 @@
* found in the LICENSE file.
*/
+#include "SkColorPriv.h"
#include "SkImageDecoder.h"
#include "SkImageEncoder.h"
@@ -86,6 +87,8 @@
CGContextDrawImage(cg, CGRectMake(0, 0, width, height), image);
CGContextRelease(cg);
+ // since CGImage won't tell us if it is opaque, we have to compute it.
+ bm->computeAndSetOpaquePredicate();
bm->unlockPixels();
return true;
}