Hello everyone.
I've recently been playing with in-kernel intelfb to get it to work
with laptop screens (kernel modesetting).
Techically the effort succeeded (in intelfb2 project), but x11 guys
got there first with their drm KMS. I was not aware of KMS until it
was too late, my fault.
So now I'm left with mostly orignal intelfb2 codebase and some
knowledge of intel graphics hw.
Both work fine for me, except that now I need some sane way to use
overlay mixer without Xv.
Quick search among fbxine output plugins pointed me here, and then to
i830 gfxdriver code, which apparently does only that, overlays.
The catch is that intelfb2 uses dualhead configuration with two fbdevs
(one per display pipe, no cloning), and it's not obvious to me how to
hack support for this into directfb driver.
Moreover, it does have hw accel code, which is partially duplicated in
directfb driver, and limited support for VRAM allocation.
Is there some standard kernel<->userspace protocol for these things,
which directfb drivers tend to follow?
It would be great if someone points me to such implementations
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