Bug 133704

Summary: [Win] Port Mac Tiled Drawing Logic to Windows
Product: WebKit Reporter: Brent Fulgham <bfulgham>
Component: Layout and RenderingAssignee: Brent Fulgham <bfulgham>
Severity: Normal CC: bfulgham, webkit.review.bot
Priority: P2    
Version: 528+ (Nightly build)   
Hardware: PC   
OS: All   
Bug Depends on: 133819, 133862, 133895    
Bug Blocks:    

Description Brent Fulgham 2014-06-10 15:47:29 PDT
Certain markup can cause the Windows tiled drawing logic to waste resources laying out and rendering off-screen rectangle. This can be triggered if a DOM element has a style with a very large negative (e.g., -100,000) 'left' property.

Our Mac code is much smarter about this kind of thing, and excludes rects that are not visible.

We should do the same on Windows.
Comment 1 Brent Fulgham 2016-03-22 13:34:27 PDT
This has been complete for some time.