Fullscreen mode is all I wanted, but the points on keyboard/
recognition are good ones. So is the link to xrandr, will check. :)
Aleksandr Koltsoff kirjoitti 30.5.2005 kello 8.25:
On Saturday 28 May 2005 22:46, Asko Kauppi wrote:
Ability to swap horizontal/vertical (at least in full screen mode)
would be an almost must-have for this device. I know SDL could do
it, at some level, but there are issues s.a. blitting images on the
screen that might be more elaborate.
Has there been discussion/plans upon this? Best of all: ability to
sensor current physical orientation, and adopt instantaniously.
Hello ak :-),
At least I know that the AF get's a bit flaky if its screen
resolution is
anything else than 800x480 (like 480x800). So I think (note I
haven't seen
770 myself) that providing Xrandr would be limited (currently) to
fullscreen
applications that could use it, but the application should switch
back to the
"natural" orientation on exit. I don't know whether the AF will be
fixed to
handle that situation. Although screen space will be quite limited for
usability in the other orientation as it is. Also the on-screen
keyboard
might get somewhat confused, as well as the hand-writing recognition.
As for SDL, it's pretty simple since it can fake the screen
orientation. The
problem will be with a rotational transform when "blitting" (the
770 doesn't
have a graphics processor). So this would make sw based blitting
quite slow
as for each copied rect area, the access pattern would be left->right
(top->bottom) instead of the normal top->bottom (left->right) and I
would
imagine that the memory bus is not optimized to handle wide strides
like
this. This might be how X does Xrandr as well, but it has the
advantage of
having Xrender (on some platforms) which can do the rotation in
hardware so
in those cases it's not an issue.
Please correct me if I'm wrong, I haven't read Kdrive/Xrandr-sources.
ak.
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