Review Request: fix a Plasma crash with a 16-bit screen depth and Qt 4.6

[Benjamin Stuhl]

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Review request for Plasma.


Summary
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Meke sure that Plasma only tries to apply its software Gaussian blur to 32-bit QImages, since it will corrupt memory if applied to ones with lower bit depths. Add a Q_ASSERT to the effect to make testing easier.


This addresses bug 207290.
    https://bugs.kde.org/show_bug.cgi?id=207290


Diffs
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  /trunk/KDE/kdebase/workspace/plasma/applets/tasks/abstracttaskitem.cpp 1023128 
  /trunk/KDE/kdelibs/plasma/private/effects/blur.cpp 1023128 

Diff: http://reviewboard.kde.org/r/1608/diff


Testing
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Thanks,

Benjamin