FB-access-wrapper?

Alan Cox alan at lxorguk.ukuu.org.uk
Sat Jan 15 16:58:43 PST 2005


On Sad, 2005-01-15 at 10:47, Thomas Winischhofer wrote:
> And as regards Keith's question: No, generally not. But the shadow code
> submits very small areas and refreshing small areas is painful due to
> the USB transfer overhead. Now I "collect" the areas by building a
> "large" area covering all the small areas RefreshArea() got in the meantime.

I would have expected the merging to be dependant on the difference
between the area updated that has changed and the area updated that has
not. A single "collection" will generate very bad results on things like
diagonal lines across the screen when it should generate a set of boxes.





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