bg_test(6) Svgalib User Manual bg_test(6)NAMEbg_test - test the background mode of svgalib
Tests the enhanced support of recent svgalibs to draw while switched to
the background. Draws a small centered white box then waits until you
switch to another vc. Draws some outer box frame around it while back‐
ground, which you can see when you switch back to it. For obvious rea‐
sons, your version of svgalib must have BACKGROUND support enabled
(which is the default as of this writing). When finished, press any
key to end bg_test.
The demo uses a G320x200x256 mode or the one you set with
If you specify the linear parameter the demo will use vgagl(7) and
vga_setlinearaddressing(3) to test linear mode in background.
This demo is part of svgalib and can be found in the demos/ subdirec‐
tory of the original svgalib distribution. However, it is not installed
in the system by default, s.t. it is unclear where you can find it if
your svgalib was installed by some linux distribution. Even then, when
you have the demo on your system, you probably won't have the sources
s.t. it is only of limited use for you.
In case of any such problem, simply get an svgalib distribution from
the net. You even don't need to install it. Just make in the demos/
subdirecty. As of this writing, svgalib-1.2.12.tar.gz is the latest
version and can be retrieved by ftp from sunsite.unc.edu at
/pub/Linux/libs/graphics and tsx-11.mit.edu at /pub/linux/sources/libs
which will most probably be mirrored by a site close to you.
SEE ALSOsvgalib(7), vgagl(7), libvga.config(5), vga_runinbackground(3),
threed(6), accel(6), eventtest(6), forktest(6), fun(6), keytest(6),
mousetest(6), scrolltest(6), speedtest(6), spin(6), testaccel(6),
testgl(6), testlinear(6), vgatest(6), plane(6), wrapdemo(6)AUTHOR
This manual page was edited by Michael Weller <email@example.com-
essen.de>. The exact source of the referenced demo as well as of the
original documentation is unknown.
It is very likely that both are at least to some extent are due to Harm
Occasionally this might be wrong. I hereby asked to be excused by the
original author and will happily accept any additions or corrections to
this first version of the svgalib manual.
Svgalib 1.3.0 8 April 1998 bg_test(6)