[Webkit-unassigned] [Bug 14105] New: High processor load while switch a matrix of .gifs

[bugzilla-daemon at webkit.org]

http://bugs.webkit.org/show_bug.cgi?id=14105

           Summary: High processor load while switch a matrix of .gifs
           Product: WebKit
           Version: 522+ (nightly)
          Platform: Macintosh
               URL: http://smyck.de/screentest/
        OS/Version: Mac OS X 10.4
            Status: UNCONFIRMED
          Severity: Normal
          Priority: P2
         Component: Layout and Rendering
        AssignedTo: webkit-unassigned at lists.webkit.org
        ReportedBy: contact at smyck.org


I was trying to play little pixel animations on a xhtml page by switching 52
KByte gifs in a matrix "on and off" by swapping the image with javascript at 25
frames per second. All the browsers out there perform very poor and producing
lots of CPU load. The javascript doesn't seem to be the problem - in
spidermonkey the whole script runs very very fast. The gifs are in the cache
after the initial page load - so it must be the rendering I assume. I've put
the (my) testcase on http://smyck.de/screentest/.
The latest webkit comes very close to desired frame rate on my macbook pro but
on older machines its slow and burns the cpu.

In case you wonder what it is for, check out http://blinkenlights.de/ 
We wanted to make a web app to let the users create movies for the next
installation and play their movies on the web without flash etc.


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