Computer Science
scrolltest(6) Svgalib User Manual scrolltest(6)
NAME
scrolltest - tests some scrolling algorithms with svgalib
SYNOPSIS
scrolltest
DESCRIPTION
Smooth scrolling demo. Uses three different techniques.
Useful for testing Mode X functionality (not that I would
recommend it over 320x240x256 linear). Press <Space> to
cycle through the demos.
The demos works only in 320x240x256 for the first 2 tests
and with 320x200x256 in the last. Demos 1 & 3 use a vir-
tual screen buffer, mode 2 (jumpy) works on screen. This
is more a skeleton if you want to write some animation
program, rather than a nice demo.
Shows frames per second (multiplied by 10) for method 1 &
3. Thus works also a kind of memory speed tester
This demo is part of svgalib and can be found in the
demos/ subdirectory 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 distri-
bution 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 mir-
rored by a site close to you.
SEE ALSO
svgalib(7), vgagl(7), libvga(5), threed(6),
accel(6), bg_test(6), eventtest(6), forktest(6), fun(6),
keytest(6), mousetest(6), speedtest(6), spin(6), testac-
cel(6), testgl(6), testlinear(6), vgatest(6), plane(6),
wrapdemo(6)
AUTHOR
This manual page was edited by Michael Weller <eowmob@exp-
math.uni-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 Hanemaayer <H.Hanemaayer@inter.nl.net>.
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 (>= 1.2.11) 29 July 1997 1
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