Bug 64639

Summary: Too much repainting when scrolling with fixed position element
Product: WebKit Reporter: Julien Chaffraix <jchaffraix>
Component: Layout and RenderingAssignee: Nobody <webkit-unassigned>
Status: NEW    
Severity: Normal CC: simon.fraser
Priority: P2 Keywords: HasReduction
Version: 528+ (Nightly build)   
Hardware: All   
OS: All   
Attachments:
Description Flags
Paint test case - show case the behavior
none
Generated PNG output on Chromium-linux none

Julien Chaffraix
Reported 2011-07-15 16:41:23 PDT
When scrolling on a page with a fixed position element, it looks like we repaint the whole screen. I guess this can be improved. The test case is similar to LayoutTests/repaint/fixed.html so it may be related to bug 25269.
Attachments
Paint test case - show case the behavior (897 bytes, text/html)
2011-07-15 16:43 PDT, Julien Chaffraix
no flags
Generated PNG output on Chromium-linux (5.52 KB, image/png)
2011-07-15 16:45 PDT, Julien Chaffraix
no flags
Julien Chaffraix
Comment 1 2011-07-15 16:43:26 PDT
Created attachment 101069 [details] Paint test case - show case the behavior
Julien Chaffraix
Comment 2 2011-07-15 16:45:05 PDT
Created attachment 101070 [details] Generated PNG output on Chromium-linux
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