Re: cairo x11 surfaces

[Riccardo Mottola]

Hi,

by using GNUstep and some apps a bit I can confirm the "mixed" 
performance of the new backend, something is better, something 
definitively worse.

On my computer at home (FreeBSD/GeForce local X display) I notice 
visible flickering when watching images full-screen using LaternaMagica 
and "scale-to-fit" selected. When I display the next image, I clearly 
see the new image shown correctly, then a black flicker, then re-displayed.
Doing the same on my Laptop (NetBSD/i915 local X display) is totally 
fine. I even exported the display to another host and it displays 
without flickering and reasonably fast. Very strange!

Window-Flickering while resizing is however visible everywhere. Even 
without solid resizing, I can clearly see that when dragging and 
re-sizing the window, the only redraw at the final size blanks out white 
and redraws. Clarly, using live-resizing and repeating this many times 
will flicker a lot.

Riccardo