Manual Reference Pages - SCROLLTEST (6)
scrolltest - tests some scrolling algorithms with svgalib
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 virtual 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 wont 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
dont 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.
This manual page was edited by Michael Weller <email@example.com>. The
exact source of the referenced demo as well as of the original documentation is
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) ||SCROLLTEST (6) ||29 July 1997 |
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