"Brian S. Julin" wrote:
>
> Well, I've had a bit more of a look at DirectFB docs, and
> herein lies the problem: There's no way to essentially do a "checkmode"
> or check anything but raw capabilities; everything is gotten
> on the spot with a "Create" call, which either fails, or actually
> sets up the resource. So, this will present some severe challenges for
> a GGI target and for LibGalloc.
>
> I guess the best we can do is just have checkmode always succeed
> unless there is something obvious wrong -- with the result being
> that setmode will often fail... In Galloc's case, resource requests
> will have to also be approved more or less blindly.
A very simple idea;
Upon installation (of GGI, with directfb target), why not run a
"capability investigator" that tries "all sorts" of Create, and
outputs a file when done that lists the modes that worked?
I have no idea about how many tries "all sorts" would requiere...
Checkmode could consult this file when needed. If there is no such
file, your strategy could be used (e.g. checkmode OKs it, praying
it will actually work when tried).
Regards,
Morten Rolland
