[cairo-bugs] [Bug 60496] New: Gimp shows strange behaviour with cairo

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=60496

          Priority: medium
            Bug ID: 60496
          Assignee: cairo-bugs at cairographics.org
           Summary: Gimp shows strange behaviour with cairo
        QA Contact: cairo-bugs at cairographics.org
          Severity: normal
    Classification: Unclassified
                OS: Windows (All)
          Reporter: hk_priv at gmx.de
          Hardware: x86 (IA32)
            Status: NEW
           Version: 1.12.12
         Component: win32 backend
           Product: cairo

I compiled Gimp-2.8.5 from the latest git-source.
I also compiled cairo 1.12.12 from git.
Mingw32 4.6.1
Windows Vista 32bit
Gimp-2.8.5 32bit

There is a strange behaviour with gimp:

1. Using the plugin "IWarp" moving the curser to the upper part of the preview
Image in order to move the pixels, it seems to copy the pixels from the lower
egde of the image to the upper edge.

2. Using a tablet pen (Aiptek media tablet), the pen is incredibly slow.

I tried some compilations from the internet and they all show the same
behaviour.

I compiled cairo-1.11.2 and with this version it is all okay. None of the above
behaviours appear.
cairo-1.11.4 doesn't work at all.
>From cairo-1.12.0 on, it shows the described things.
I use cairo-1.11.2 for my gimp now but unfortunately the new gimp-2.10 will use
at least cairo-1.12.2.

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