[Xorg] Xfbdev acceleration without offscreen pixmaps?

[Keith Packard]

Around 21 o'clock on Jun 28, Michael Frey wrote:

> I have a video card that only has enough memory for the on screen frame 
> buffer but It has a 2DBLT engine.  I have code that I used in the 
> XFree86 tree with kdrive that works great and I want to move to the new 
> kdrive from freedesktop.  Can someone tell me if it is possible to use 
> acceleration routines without using offscreen pixamps?

The frame buffer is a pixmap, so any windows drawn to the visible frame 
buffer will be acceleratable.

With Composite, not all windows are drawn to the visible frame buffer, 
hence the strange conditions in the kaa code.

-keith


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