[Webkit-unassigned] [Bug 16508] New: Regression: Transparency mis-decoded in interlaced GIFs

bugzilla-daemon at webkit.org bugzilla-daemon at webkit.org
Tue Dec 18 16:07:14 PST 2007


           Summary: Regression: Transparency mis-decoded in interlaced GIFs
           Product: WebKit
           Version: 525+ (Nightly build)
          Platform: PC
        OS/Version: All
            Status: UNCONFIRMED
          Severity: Normal
          Priority: P2
         Component: Images
        AssignedTo: webkit-unassigned at lists.webkit.org
        ReportedBy: zerodpx at gmail.com

GIFImageDecoder.cpp (not used by Safari, but used by various other WebKit
ports) has a bug I introduced several weeks ago which causes it to mis-decode
transparent sections of interlaced GIFs, by not overwriting earlier rows'
opaque pixels with later rows' transparent ones.

It's not too tricky to fix this.  Patch coming shortly.

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