[Webkit-unassigned] [Bug 74872] New: [Qt] QtWebKit scales compressed SVG (SVGZ) files as if they were raster images

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=74872

           Summary: [Qt] QtWebKit scales compressed SVG (SVGZ) files as if
                    they were raster images
           Product: WebKit
           Version: 528+ (Nightly build)
          Platform: Unspecified
        OS/Version: Unspecified
            Status: UNCONFIRMED
          Severity: Normal
          Priority: P2
         Component: WebKit Qt
        AssignedTo: webkit-unassigned at lists.webkit.org
        ReportedBy: b.brachaczek at gmail.com


Created an attachment (id=119885)
 --> (https://bugs.webkit.org/attachment.cgi?id=119885&action=review)
testcase.zip

QtWebkit (tried with 2.0 and 2.2) scales compressed SVG (SVGZ) files as if they were raster images, while it does nicely scale uncompressed SVG files. You can see it easily when setting zoom factor to 2.0 for example. Attaching a simple testcase and screenshot from it.

Originally I experienced this problem in a bit different way: it looked like a compressed SVG filed was rendered in its native size and it was then scaled like a raster image, leading to jagged image even with zoom factor 1.0. You can see it here: http://www.kadu.im/redmine/issues/2281. Unfortunately it's in Polish but I translated the most relevant comments to English there.

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