Bug 64639 - Too much repainting when scrolling with fixed position element
Summary: Too much repainting when scrolling with fixed position element
Status: NEW
Alias: None
Product: WebKit
Classification: Unclassified
Component: Layout and Rendering (show other bugs)
Version: 528+ (Nightly build)
Hardware: All All
: P2 Normal
Assignee: Nobody
URL:
Keywords: HasReduction
Depends on:
Blocks:
 
Reported: 2011-07-15 16:41 PDT by Julien Chaffraix
Modified: 2011-07-15 16:45 PDT (History)
1 user (show)

See Also:


Attachments
Paint test case - show case the behavior (897 bytes, text/html)
2011-07-15 16:43 PDT, Julien Chaffraix
no flags Details
Generated PNG output on Chromium-linux (5.52 KB, image/png)
2011-07-15 16:45 PDT, Julien Chaffraix
no flags Details

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Description Julien Chaffraix 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.
Comment 1 Julien Chaffraix 2011-07-15 16:43:26 PDT
Created attachment 101069 [details]
Paint test case - show case the behavior
Comment 2 Julien Chaffraix 2011-07-15 16:45:05 PDT
Created attachment 101070 [details]
Generated PNG output on Chromium-linux