On Wed, 16 Jan 2002 [EMAIL PROTECTED] wrote:
>
>
> Hello,
>
> I'm developping a video driver and I'd like to know if I can use both XAA
> layer and DGA.
> Does the flag DGA_CONCURRENT_ACCESS allow this?
>
Even without DGA_CONCURRENT_ACCESS both can be used if the
client is careful about calling the synchronization function
before touching the framebuffer. The DGA drawable is a Pixmap
and XAA will accelerate Xlib rendering to it as it would an
offscreen pixmap. It's basically the same performance as window
rendering but without the pixmap cache.
Mark.
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