Probably similar to issue 57307...  That issue is marked as fixed, but I did not
see any such code in splashperform, so hopefully this is of some value - as
discussed via mail ;-)

We have Xlib+glib only splash application that starts quickly & draws the splash
and progress of OOo startup.  A small description:

- In principle, the splash binary "ooqstart" opens a pipe, gives its handle to
OOo (using -splash-pipe= option), and expects percentage (e.g. "10%\n"), or
"end\n" on it.

- desktop/unx/source/start.c: Handling of the pipe, executing OOo, etc.  It uses
glib.

- desktop/unx/source/splashx.[hc]: Minimal implementation of bitmap reading, and
progress drawing.  Uses just Xlib.

I'll commit this to the 'unxsplash' CWS.  The changes should be safe (=nothing
should happen) for other platforms; also nothing changes for unx unless
-splash-pipe= argument is specified to 'soffice' - so I hope it will be no
problem :-)

The idea is that this CWS could be integrated ~quickly, and if modifications
were needed, they could be done in the splashperform CWS later.