[Webkit-unassigned] [Bug 98403] SVG image cache is very broken

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=98403


Branimir Lambov <blambov at google.com> changed:

           What    |Removed                     |Added
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         AssignedTo|webkit-unassigned at lists.web |blambov at google.com
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--- Comment #1 from Branimir Lambov <blambov at google.com>  2012-10-04 06:57:17 PST ---
Created an attachment (id=167096)
 --> (https://bugs.webkit.org/attachment.cgi?id=167096&action=review)
Example

The attached file illustrates some of the problems on Chrome Linux:
* When the file is opened, usually the cache does not engage and 26 copies of the SVG image are all re-drawn every frame. Performance is very bad, images look good.
* Hitting refresh sometimes causes the page to load with the cache activated. When this happens:
* * The page does not show for a few seconds while 26 copies of the SVG file are rendered at a resolution that is 20x20 times higher than required;
* * After that the animation is smooth, but the images get scaled from the wrong resolution and look bad (non-antialiased).

On Safari getting the cache activated also results in practically frozen image as it tries to do a smooth scale from the absurdly high resolution.

(Sorry for the ZIP file, Chrome and Firefox both crash when attempting to upload this unzipped)

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