In this post here:
http://mail.directfb.org/pipermail/directfb-dev/2006-May/001739.html

it says that:
"for every pixel you write to the "color" buffer you need to write the alpha
component separately (to the right pixel) in the alpha mask fb. you need to
check if it uses pre-multiplied alpha or not though (likely not)."

How do I write the write the alpha component separately (to the right pixel)
in the alpha mask fb?  How exactly is this done in code.  I am working on
Davinci and it has the fb2 buffer for controlling the transparency.

Thanks for any help you can provide?

Ryan




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