On Montag, 7. Januar 2013 14:18:04 CEST, Aaron J. Seigo wrote: > the shadow+windowframe is not cached somewhere? It's not "shadow+windowframe" but "shadow+window" - doubling memory usage for that window (once more) since the window texture/picture is provided as pixmap by the redirection, you cannot extend that and ofset the redirection in your shadow-prepared window. (no, wayland should rather not change that)
*that* can make things *really* slow if you run out of VRAM (or explicitly leave it by caching in some QImage) - not to speak of the nvidia driver being quite unhappy everytime you allocate memory at runtime.
