When VT switching away and back, the kernel uses SIGUSR1 and SIGUSR2
to notify us of a vt switch event. That same signal was being trapped
here to toggle display of the 'fps' window. If we check the signal's
si_code, we can tell if this signal came from the kernel (as in vt
switch) or from the user (as is sent in 'kill'). This fixes the issue
of VT-switching back and forth under DRM would cause the compositor
'fps' display to appear.
Signed-off-by: Chris Michael <cpmichael@osg.samsung.com>
elm win intercepts this callback in order to maintain internal sizing
for use with elm widgets on the compositor canvas, so it's necessary to
get the callback from this object in order to accurately update the canvas
during resizes
e backlight was accessing e_comp implicitly during shutdown and comp
is shut down before backlight (that is correct as comp relies on
backlight). this fixes that
@fix
previous behavior would result in the nocomp window becoming stuck at a fullscreen
layer when ending nocomp, even if the client was no longer fullscreen
fix T2827
in some cases, it's possible for a client which expects to render on
the next frame to actually render on the frame after. in these cases,
the compositor must not clear the pixmap image until after the render
has occurred in order to avoid inaccuracies. for this reason, the best
place to flag a client for post-render work is at the time of the client's
render
ref T2762
ref D3120
in the case where a window is fullscreen without having the 'fullscreen'
flag set, the previously-used layer must be reapplied upon nocomp end
in order to avoid breaking the compositor
if windows set to "Always on Top" exist while the option to allow
windows over fullscreen windows is enabled, enabling nocomp will
result in the above windows being stuck over the nocomp window
instead, force the nocomp window to be the top-most window in all cases,
and then put it back if another object appears on the screen over it
fix T2703
it's conceivable that, were there a bug in client refcounting,
this could become an infinite loop and prevent shutdown/restart.
since, at this point, we don't really care about deleting anything,
ensure that the loop will end
this follows 56cabf59c6 then
4e5521b4d8 where i have been trying to
fix a crash with e client and comp win references etc. i have gone
over all referencing with a fine tooth comb and found all the nigglies
i can., no leaks now, no crashes, no valgrind complaints etc. so i
call this fixed now. as best i know this is new in e20, so not a
backport fix
Chris Michael
Mike Blumenkrantz
Carsten Haitzler
Nicolas Aguirre
Florent Revest
Chris Michael