| |
| |
On 6/8/21 8:52 AM Manolo wrote:
Le lundi 7 juin 2021 à
21:03:45 UTC+2, Albrecht Schlosser a écrit :
test/doublebuffer runs "faster than ever seen" and
there's no noticeable difference between single and double
buffer which is what I expected. Manolo, there is no
difference, right?
Yes. There's no such thing as a Wayland single window
because it's not possible with Wayland to draw in the window.
All drawing goes to a buffer, and then this buffer is
"committed" to Wayland. The two windows of test/doublebuffer
follow exactly the same code.
Thanks, that's exactly what I had expected. Wayland is always
"double buffered" and, from a user's point of view, Fl_Window will
be functional identical to Fl_Double_Window on the Wayland platform.
test/glpuzzle does "funny things" (TM) if you let the game
rotate (drag the mouse and see). Borders disappear, sometime
there's a see-through effect.
Bill's hint below about the z buffer is probably the way to
look to fix that. Help needed. I dont know GL.
Neither do I, but my further test (see another message) seems to
indicate that the wrong behavior is Wayland and not VM specific. Do
you see this misbehavior too?
Not all cursors appear as they should (test/cursor).
Yes, that happens with some Ubuntu themes but not all, and
not with Debian, where all cursor shapes work.
Cursors are searched in a system folder and some shapes are
absent for some Ubuntu themes. Who knows why?
Hmm, that's a pity. I don't know but I'm sure we can find a way to
make our own cursors as a fallback if necessary.
Screen scaling (ctrl/+/-/0) doesn't seem to work yet. Maybe
in GL windows though (not sure). I've seen some weird
effects.
FTR, see attached image running "$ FLTK_SCALING_FACTOR=1.3
test/fullscreen" with both X11 (left side) and wayland (right
image).
Wayland was born when HighDPI existed, so it contains
natively a way to handle HighDPI in the form of an integer
scale whose value
grows with pixel density. FLTK apps follow this scaling
without need for change nor ctrl/+/.
FLTK apps don't seem to honor the environment variable
FLTK_SCALING_FACTOR completely (see image). The scaling factor is
recognized though (scale: 1.30) in both cases.
Go to Settings -> Display -> Scale and set it to 200%
or 300 % on a large display, you'll see FLTK Wayland apps
follow the change.
I can't find such a setting in my Ubuntu VM. I only have
"Resolution" and "Fractional Scaling" (see screenshot).
They're not adaptive while running yet, though.
Do you think you can implement this too? ctrl/+/-/0 is IMHO an
essential feature independent of the system/display setting.
Manolo, would you like me to add CMake support? I'd like
to help if I can.
Yes I do. Many thanks.
But I believe we should first decide whether we want to
include Wayland in the FLTK repo
and whether we do that as a new branch, or in the main
branch, just like Android or Pico.
I will give it a try anyway. For me it's a valuable addition even
for the testing phase, and I'm confident that we will add Wayland
support sooner or later -- unless we find that it's not going to
work which doesn't seem likely now, thanks to your awesome work so
far.
I think, as long as you're developing the Wayland port it's okay to
have it in your own fork. You could even create a PR so we (devs
only) can also commit directly to your fork (if you like).
My suggestion is to rebase the branch from time to time so we are
always in sync with the upstream master branch (please don't merge
the master into your wayland branch though, this will only make
things more difficult). I do also propose that we'll rebase and
squash the wayland branch before the final merge to avoid having too
many intermediate file versions in the main FLTK repository.
I would also appreciate feedback about use on a native
Linux system (as opposed to a virtual machine).
I'll try to test on my bare metal Linux when time permits. I think I
did already install 'weston' so I could maybe run it directly on my
notebook. If that's not possible I can use another Debian Buster
system on my ancient MacMini. ;-)
--
You received this message because you are subscribed to the Google Groups "fltk.coredev" group.
To unsubscribe from this group and stop receiving emails from it, send an email to fltkcoredev+unsubscribe@googlegroups.com.
To view this discussion on the web visit https://groups.google.com/d/msgid/fltkcoredev/03f181e3-2313-88cd-7472-4404c7e6fc3d%40online.de.
Attachment:
fullscreen.png
Description: PNG image
Attachment:
display-settings.png
Description: PNG image
[ Direct Link to Message ] | |
|
| |
