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authorGravatar brianosman <brianosman@google.com>2016-08-17 14:01:05 -0700
committerGravatar Commit bot <commit-bot@chromium.org>2016-08-17 14:01:05 -0700
commit69c166d2ce3f4d2099f35f8e88f1aa56ceeaf960 (patch)
treeb4dd37edab6952e67c7362a247014016abac37a5 /src/image/SkImage_Base.h
parenta7eaf2e7e84ff10d1ed76b5d1e039c1a2d931392 (diff)
Add alphaType() to SkImage
Keep isOpaque as a convenience method -- many places really only need to know that for optimization purposes (SrcOver -> Src, etc...). In all the places where we pull data back out or convert to another object and need to supply an SkImageInfo, we can avoid losing information about premulness. BUG=skia: GOLD_TRYBOT_URL= https://gold.skia.org/search?issue=2250663002 Review-Url: https://codereview.chromium.org/2250663002
Diffstat (limited to 'src/image/SkImage_Base.h')
-rw-r--r--src/image/SkImage_Base.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/src/image/SkImage_Base.h b/src/image/SkImage_Base.h
index a1da0fa559..7ebedeb6f0 100644
--- a/src/image/SkImage_Base.h
+++ b/src/image/SkImage_Base.h
@@ -34,6 +34,7 @@ public:
// Implementors: if you can not return the value, return an invalid ImageInfo with w=0 & h=0
// & unknown color space.
virtual SkImageInfo onImageInfo() const = 0;
+ virtual SkAlphaType onAlphaType() const = 0;
virtual bool onPeekPixels(SkPixmap*) const { return false; }