D25611: [scene] Fix decoration texture bleeding

[Vlad Zahorodnii]

zzag added inline comments.

INLINE COMMENTS

> zzag wrote in scene_opengl.cpp:2616
> It seems like I misunderstood your question. To be honest, I didn't do benchmarks. I saw a todo comment and decided to fix it. I will revert this change.

Back to the question: I expect performance to be the same if the decoration theme fills borders with some solid color. If it layers multiple gradients, then I expect performance to go down due to cache misses. But the only way to find whether that's true is to do lots of benchmarks...

REPOSITORY
  R108 KWin

REVISION DETAIL
  https://phabricator.kde.org/D25611

To: zzag, #kwin
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