Bug 85677 - [chromium] Implement order-dependent damage tracking
Summary: [chromium] Implement order-dependent damage tracking
Alias: None
Product: WebKit
Classification: Unclassified
Component: Layout and Rendering (show other bugs)
Version: 528+ (Nightly build)
Hardware: Unspecified Unspecified
: P2 Normal
Assignee: Shawn Singh
Depends on:
Reported: 2012-05-04 15:38 PDT by Shawn Singh
Modified: 2013-04-10 13:33 PDT (History)
2 users (show)

See Also:


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Description Shawn Singh 2012-05-04 15:38:48 PDT
https://bugs.webkit.org/show_bug.cgi?id=85421 was a quick-fix for a bug where changes in sibling stacking order was not causing damage.

The solution in that patch was to consider stacking-order changes as "property changes" on layers.  However, this is not an ideal clean correct design.  The better design is for damage tracker to actually track changes in an order-dependent manner (assuming it turns out to be practical).

Indeed, the damage tracker is already assuming order-dependence (expanding damage due to filters assumed the layer list is already sorted in back-to-front drawing order).
Comment 1 Shawn Singh 2013-04-10 13:33:08 PDT
moved this bug to https://code.google.com/p/chromium/issues/detail?id=230050