1testlinear(6) Svgalib User Manual testlinear(6)
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6 testlinear, lineart - test a linear frame buffer
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9 testlinear
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13 Program to test linear addressing on Cirrus cards and on Mach32 (and
14 other cards which may support it).
15 Selects 640x480x256 and tries to enable a linear frame buffer (its vir‐
17 tual address is printed). Fills the screen in some color, then draws
18 pixels in random positions.
19 For Cirrus cards some direct hardware access is then made for highspeed
21 screen access. Except for the last (Cirrus only) test no speeds are
22 printed, but you are welcome to use 'time' to measure it. The program
23 draws 714400 one byte pixels plus a forced 1s delay and various rand()
24 calls for the pixels.
25 The testlinear demo needs a few presses of <Return> after each minimal
27 demo step. Even when it does not prompt for it. When it appears to be
28 stuck, just press <Return>.
29 The lineart demo is the same, but it accepts a command line with an
31 arbitrary number of modes. The modes may be either mode numbers or
32 names, or both. For example,
33 lineart 11 17 G800x600x32k 22
35 will give a display of mode 11. If a key is pressed mode 17 will
37 appear, followed by mode 20 and 22 as succesive keys are pressed.
38 This demo is part of svgalib and can be found in the demos/ subdirec‐
40 tory of the original svgalib distribution. However, it is not installed
41 in the system by default, s.t. it is unclear where you can find it if
42 your svgalib was installed by some linux distribution. Even then, when
43 you have the demo on your system, you probably won't have the sources
44 s.t. it is only of limited use for you.
45 In case of any such problem, simply get an svgalib distribution from
47 the net. You even don't need to install it. Just make in the demos/
48 subdirecty. As of this writing, svgalib-1.2.12.tar.gz is the latest
49 version and can be retrieved by ftp from sunsite.unc.edu at
50 /pub/Linux/libs/graphics and tsx-11.mit.edu at /pub/linux/sources/libs
51 which will most probably be mirrored by a site close to you.
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55 svgalib(7), vgagl(7), libvga.config(5), threed(6), accel(6),
56 bg_test(6), eventtest(6), forktest(6), fun(6), keytest(6),
57 mousetest(6), scrolltest(6), speedtest(6), spin(6), testaccel(6),
58 testgl(6), vgatest(6), plane(6), wrapdemo(6)
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62 This manual page was edited by Michael Weller <eowmob@exp-math.uni-
63 essen.de>. The exact source of the referenced demo as well as of the
64 original documentation is unknown.
65 It is very likely that both are at least to some extent are due to Harm
67 Hanemaayer <H.Hanemaayer@inter.nl.net>.
68 Occasionally this might be wrong. I hereby asked to be excused by the
70 original author and will happily accept any additions or corrections to
71 this first version of the svgalib manual.
72Svgalib (>= 1.2.11) 29 July 1997 testlinear(6)