I think a key option to have a lightweight window manager are clippers
(maybe in software).
If a surface can have blits, draw, etc. without to invade a region, then a
window (without alpha blend) could be just a subsurface of the primary
woth the correct clipper, and the clipper could change when the window is
resized/moved.
This would be very nice for common desktop apps, preventing a great number
of drawing threads.
In facts i ported eboard to gtk2-directfb and i found that (even without
alpha, on a matrox g400!) graphics were very slow, slower then under X :-(
Ciao
Maurizio
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| |
| "'L'Anticristo pu� nascere dalla stressa piet�, dall'eccessivo amor di Dio |
| o della verit�, come l'eretico nasce dal santo e l'indemoniato dal |
| veggente. Temi, Adso, i profeti e coloro disposti a morire per la verit�, |
| ch� di solito fan morire moltissimi con loro, spesso prima di loro, |
| talvolta al posto loro.'" |
| |
| Umberto Eco |
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