Alpha Blending

Great job on the new SDL release !

Question:

Does the Alpha Blending blits use any kind of hardware, ie: videocard
accelerator hardware/ mmx … etc ?

How much of a performance hit for 2 identical blits, one with alpha 50/50
and the other regular (opaque). ?

Or is it different number on all platform types ?

Again, great job.

Thanks

Yves.