which x server fully accelerate the Composite extension

[Carlos Eduardo Rodrigues Diogenes]

some time ago I received this from keith packard:

On Tue, 2005-08-09 at 10:56 -0300, Carlos Eduardo Rodrigues Diogenes
wrote:

>> Hi,
>> 
>> 'diopter' is very slow when compared with other magnifier solutions, 
>> like gnome-mag. There is any explain for it?
>  
>

Yes, you have to have an X server which fully accelerates the Composite
extension and ARGB visuals. Only a very few X servers can do this, the
X.org default server not being one of those. With this in place, the
magnifier can update the screen plenty fast.

-keith


So, my question is, what X server fully accelerates the Composite 
extension and ARGB visual?

Thanks,
Carlos.