[Webkit-unassigned] [Bug 68120] New: Poor redrawing of images when resizing in WebKit 534+ on MacOS X and iOS5

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=68120

           Summary: Poor redrawing of images when resizing in WebKit 534+
                    on MacOS X and iOS5
           Product: WebKit
           Version: 528+ (Nightly build)
          Platform: Unspecified
        OS/Version: Mac OS X 10.6
            Status: UNCONFIRMED
          Severity: Normal
          Priority: P2
         Component: Images
        AssignedTo: webkit-unassigned at lists.webkit.org
        ReportedBy: redjen at gmail.com


Redrawing of images when changing their size via Javascript is poorer in builds 534+ than in build 533 on MacOS X and iOS. The images are visibly pixelated when first loaded, then smooth about a second later. This appears to occur however the image is resized; I can repro by manipulating the images or divs surrounding them. 


Repros in:
* Safari Mobile on iOS5b7
* MacOS X on chrome 13
* MacOS X Chrome (Canary) 16.0.881.0
* MacOS X Chrome 13.0.782.220
* MacOS X Safari 5.1
* MacOS X WebKit nightly r95080. 

Does not repro in:
* Safari Mobile on iOS 4.3 
* MacOS X Chrome 5.0.342.9 (latest version of Chrome I could find with WebKit 533) 
* Windows equivalents of Chrome and Safari.



STEPS TO REPRODUCE

1. View one of the attached test pages in an affected browser on MacOS X.

2. Click the Toggle button to resize.

Expected: image resizes smoothly.
Actual: image is jagged, then smoothed a second later.

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