svgalib: what changed
Revision 0 to 1. Removed lines have a minus sign; added lines have a plus sign.
Title: svgalib
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| 1 | + | ## Overview | |
| 2 | + | ||
| 3 | + | Under Linux/BSD, you can use libvga to access the graphical screen from the console. Free Pascal has a unit which makes linking to the libvga possible. You can find the unit, as well as a makefile and some test programs here. You just need to compile it, put a reference to it in your program or unit, and that is it. There are 2 units in this package: | |
| 4 | + | ||
| 5 | + | - **svgalib** the actual libvha interface. | |
| 6 | + | - **vgamouse** mouse extensions to work with the mouse under svgalib. | |
| 7 | + | ||
| 8 | + | ## Requirements | |
| 9 | + | ||
| 10 | + | To use this unit, you need at least: | |
| 11 | + | ||
| 12 | + | - Free Pascal 0.99.5 or higher | |
| 13 | + | - libsvga 1.2.10 or higher | |
| 14 | + | ||
| 15 | + | ## Installation | |
| 16 | + | ||
| 17 | + | The svga lib unit comes with the packages of Free Pascal. This contains a subdirectory svgalib. Change to this directory. | |
| 18 | + | ||
| 19 | + | Edit the makefile to suit your setup (compiler, options, where do you want to install) type | |
| 20 | + | ||
| 21 | + | `make` | |
| 22 | + | ||
| 23 | + | and all units will be compiled. Then type | |
| 24 | + | ||
| 25 | + | `make install` | |
| 26 | + | ||
| 27 | + | To install the units. | |
| 28 | + | ||
| 29 | + | ## Testing | |
| 30 | + | ||
| 31 | + | Two small testprograms have been provided: | |
| 32 | + | ||
| 33 | + | - **vgatest** : This is a translation of the C program that comes with svgalib. | |
| 34 | + | - **testvga** : A Small program to demonstrate that you can draw lines on the screen in any mode. | |
| 35 | + | ||
| 36 | + | typing | |
| 37 | + | ||
| 38 | + | `make test` | |
| 39 | + | ||
| 40 | + | will compile the programs. | |
| 41 | + | ||
| 42 | + | ## Caveats | |
| 43 | + | ||
| 44 | + | It is possible that you must be root to run these programs, The SVGAlib docs I have aren't clear about that. If the programs should be able run as another user, you should make them setuid root. I tested everything as root, and it ran smoothly, your mileage may vary, however. | |
| 45 | + | ||
| 46 | + | ## Future Plans | |
| 47 | + | ||
| 48 | + | It would be nice to have a borland style GRAPH unit wrapped around this; just for beginners or people who wish to port some old DOS code. | |
| 49 | + | ||
| 50 | + | Go to back [[Package List|Packages List]] | |
| 51 | + | ||
| 52 | + | --- | |
| 53 | + | *From the Free Pascal wiki, page "svgalib", as it stood on 2015-07-06 after a change by Iskraelectrica, out of the wiki's dump of 2024-05-26. Copyright stays with the author who wrote it, according to the old wiki's [[Licensing]] page. If you have concerns about this material, [message the admin](/wiki-contact).* | |
| 54 | + | Category: Linux | |
| 55 | + | Category: Packages | |
| 56 | + | Category: Unix |