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List:       kde-bugs-dist
Subject:    [krita] [Bug 361709] With more than 1 curve based assistant, zooming in will black screen part or al
From:       Dmitry Kazakov via KDE Bugzilla <bugzilla_noreply () kde ! org>
Date:       2016-08-16 14:59:23
Message-ID: bug-361709-17878-65U0KlNbbc () http ! bugs ! kde ! org/
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https://bugs.kde.org/show_bug.cgi?id=361709

Dmitry Kazakov <dimula73@gmail.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
         Resolution|---                         |FIXED
             Status|CONFIRMED                   |RESOLVED
      Latest Commit|                            |http://commits.kde.org/krit
                   |                            |a/34f8ecdf866b556c4a054003f
                   |                            |6358a7cee6fa025

--- Comment #24 from Dmitry Kazakov <dimula73@gmail.com> ---
Git commit 34f8ecdf866b556c4a054003f6358a7cee6fa025 by Dmitry Kazakov.
Committed on 16/08/2016 at 14:59.
Pushed by dkazakov into branch 'master'.

Workaround a NVIDIA/Qt but with black screen in assistants

It seems like Qt uses some internal caches/textures for painting
pixmaps/images on screen. And if the images of one rendering cycle
don't fit into that cache they are painted and black rectangles.

There is a workaround for that: just make the size of the pixmap cache
more than 20 MiB. Then all the pixmaps painted through the cache will work
correctly (if you decide to draw a QImage on screen manually, it still
doesn't work).

I don't know what happens there, but it seems like this workaround fixes
the problem. Let's wait until we merge Qt+openGL3 branch, probably, it
will change something.

M  +36   -0    libs/ui/opengl/kis_opengl.cpp
M  +5    -0    libs/ui/opengl/kis_opengl.h

http://commits.kde.org/krita/34f8ecdf866b556c4a054003f6358a7cee6fa025

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