EXA component alpha

Fri Jan 6 13:39:21 PST 2006

On Thu, 2006-01-05 at 13:10 +0100, Thomas Hellström wrote:
> Hi!
> 
> While working with via composite acceleration I've come across 
> situations where the src picture is ABGR8888 and the mask is ARGB8888.
> 
> Is the four component mask intended to be used as component alpha or 
> should the RGB data be ignored and the A channel be used as alpha for 
> all channels on the source?
> 
> Any enlightenment would be appreciated.

Component alpha afaik. Used by supixel rendering.

Ben.