[effects] Check for LimitedNPOT

Review Request #126966 - Created Feb. 2, 2016 and submitted

Information
Martin Flöser
kwin
master
Reviewers
kwin
Effects which require mipmaps need to check for LimitedNPOT and
disable the functionality if it's not available. Ideally they could
also check whether the texture they operate on is a power of two, but
that's a little overkill for the rather uncommon setup.

  
Thomas Lübking
Martin Flöser
Review request changed

Status: Closed (submitted)

Change Summary:

Submitted with commit bd5f6420978a882d2b532faaee49512d98c300a2 by Martin Gräßlin to branch master.
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