On Nov 4, 10:58 am, Mathias Agopian <[EMAIL PROTECTED]> wrote:
> On Nov 1, 11:41 pm,McHargChris <[EMAIL PROTECTED]> wrote:
[...]
> > That reminds me... when looking at the i.MX31 fb flickering problem a
> > while ago, I noticed that android was using FBIOPUT_VSCREENINFO (which
> > calls fb_set_par etc along with fb_pan_display) instead of
> > FBIOPAN_DISPLAY to flip the display. Any ideas on the reason for doing
> > it that way?
>
> I did it this way because some of the drivers on some hardware we used
> didn't support FBIOPAN_DISPLAY (and still don't). It looks like
> FBIOPAN_DISPLAY is often not implemented in comparison to
> FBIOPUT_VSCREENINFO.
>
> Ideally the code there should try FBIOPAN_DISPLAY and if that doesn't
> work, revert to FBIOPUT_VSCREENINFO.
I noticed that QEMU uses SDL and SDL use only FBIOPAN_DISPLAY for
flipping.
Does it means that pre-built SDL lib for Android emulator is modifiled
to match
this broken behavior?
--
yashi
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