93 lines
2.8 KiB
Groff
93 lines
2.8 KiB
Groff
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.TH testgl 6 "8 April 1998" "Svgalib 1.3.0" "Svgalib User Manual"
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.SH NAME
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testgl \- test the vgagl library
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.SH SYNOPSIS
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.B testgl
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.SH DESCRIPTION
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Demo program for
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.BR vgagl (7)
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framebuffer library. Runs in any mode preset
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from the environment.
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First draws pixels in random locations, then
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random boxes, then random lines and finally some bit image in random
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locations (all just over the previous drawings).
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Then the
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test is repeated clipping the screen output to a smaller screen
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portion (using a
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.BR vgagl (7)
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function). Finally a (lousy) 'rotating'
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linux logo is shown in the top left quadrant and then is drawn
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over the whole screen.
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Depending on internal development state of svgalib, it may use an
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accelerator for some of the functions.
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You can set a videomode
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to use by setting the environment variable
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.B SVGALIB_DEFAULT_MODE
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to a number (see vgatest
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for a list) or a string like G0x1x2 where you replace 0 with desired x
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resolution, 1 with the desired y rez, and 2 with the desired number of
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colors (2, 16, 256, 32K, 64K, 16M, 16M4). Again, only certain choices are
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available, see vgatest for a list.
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In case nothing is selected, G320x200x256 is choosen.
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This demo is part of svgalib and can be found in the
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.I demos/
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subdirectory of the original svgalib distribution. However, it is not installed in the system
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by default, s.t. it is unclear where you can find it if your svgalib was installed by some
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linux distribution. Even then, when you have the demo on your system, you probably won't have
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the sources s.t. it is only of limited use for you.
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In case of any such problem, simply get an svgalib distribution from the net. You even
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don't need to install it. Just
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.B make
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in the
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.I demos/
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subdirecty. As of this writing,
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.I svgalib-1.2.12.tar.gz
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is the latest version and can be retrieved by ftp from
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.IR "sunsite.unc.edu" " at " "/pub/Linux/libs/graphics"
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and
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.IR "tsx-11.mit.edu" " at " "/pub/linux/sources/libs"
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which will most probably be mirrored by a site close to you.
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.SH SEE ALSO
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.BR svgalib (7),
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.BR vgagl (7),
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.BR libvga.config (5),
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.BR threed (6),
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.BR accel (6),
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.BR bg_test (6),
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.BR eventtest (6),
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.BR forktest (6),
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.BR fun (6),
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.BR keytest (6),
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.BR mousetest (6),
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.BR scrolltest (6),
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.BR speedtest (6),
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.BR spin (6),
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.BR testaccel (6),
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.BR testlinear (6),
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.BR vgatest (6),
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.BR plane (6),
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.BR wrapdemo (6)
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.SH AUTHOR
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This manual page was edited by Michael Weller <eowmob@exp-math.uni-essen.de>. The
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exact source of the referenced demo as well as of the original documentation is
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unknown.
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It is very likely that both are at least to some extent are due to
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Harm Hanemaayer <H.Hanemaayer@inter.nl.net>.
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Occasionally this might be wrong. I hereby
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asked to be excused by the original author and will happily accept any additions or corrections
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to this first version of the svgalib manual.
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