[cairo-bugs] [Bug 17448] New: ClearType rendering problem in Firefox

bugzilla-daemon at freedesktop.org bugzilla-daemon at freedesktop.org
Fri Sep 5 04:17:55 PDT 2008


           Summary: ClearType rendering problem in Firefox
           Product: cairo
           Version: 1.7.5
          Platform: All
        OS/Version: Windows (All)
            Status: NEW
          Severity: normal
          Priority: medium
         Component: win32 backend
        AssignedTo: cairo-bugs at cairographics.org
        ReportedBy: paolo at paolomontrasio.com
         QAContact: cairo-bugs at cairographics.org

This problem is pretty old so it might be a duplicate but I can't find a bug
report for this in the archive. Here's the problem:

Firefox 3 cuts the last line of pixels in text elements that are rendered with
opacity < 1.0. A bug has been opened on their bugzilla at
https://bugzilla.mozilla.org/show_bug.cgi?id=363861 and there are screenshots
and test cases there. It seems that the problem is due to Cairo (I don't know
which version, I picked 1.7.5 for opening this bug as it is the default one).

The last comment on the Mozilla bug report links to a thread on your mailing
list http://lists.cairographics.org/archives/cairo/2006-October/008081.html
I read the whole of it but it's not clear if the problem has been fixed. It
hasn't in the version that Firefox is using now. If it has got fixed you might
want to get in touch with the Firefox team and point them to a newer release of
your software. You'll make a lot of Firefox users and web application
developers happy :-)

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