Re: [Dri-devel] i815 and other 16-bit modes...

[Keith W. <ke...@tu...>]

Dave Airlie wrote:
> This is a future looking question, for maybe after I figure out that
> corruption..
> 
> I realise the i815 doesn't support 24-bit stuff HW accelerate, but I think
> it does support other 16-bit modes other than 5-6-5, 1-5-5-5 and 4-4-4-4,
> I'm interested if implementing these would be of any use, would alpha
> blending work better if I had 4-4-4-4, do I get any alpha blending with
> 5-6-5?

1555 and 4444 would give you destination alpha.  565 still allows you to use 
blend modes that don't reference destination alpha.

Keith