Re: Destination alpha?

On Tue, 4 Jun 2002, Keith Packard wrote:

> 
> Around 14 o'clock on Jun 4, "Bian, Jonathan" wrote:
> 
> > Thanks Keith. This makes a lot more sense to me now.  Say if I go ahead
> > modifying the driver to expose depth 32 windows, do you think the current
> > XFree86 server is capable of handling this or some additional work is
> > required?
> 
> Most of the current server is quite capable of handling depth 32 windows, 
> I'm less sure of the XFree86 driver infrastructure which hasn't seen quite 
> the level of hardware variety that the rest of the server has.
> 
> You'll want to advertise both depth 24 and depth 32 windows, both at 
> 32bpp.
> 
> What we should probably do is make this a common feature of 32bpp hardware 
> so that all of the drivers could advertise this.
> 

   I think maybe fewer 32bpp hardware can do destination alpha than
you realize.


			Mark.