The OpenNET Project / Index page

[ новости /+++ | форум | теги | ]

Интерактивная система просмотра системных руководств (man-ов)

 ТемаНаборКатегория 
 
 [Cписок руководств | Печать]

restorefont (1)
  • >> restorefont (1) ( Linux man: Команды и прикладные программы пользовательского уровня )
  •  

    NAME

    restorefont - save or restore the SVGA font for textmode.
     
    

    SYNOPSIS

    restorefont {-r|-w} filename

     

    DESCRIPTION

    The font used by SVGA when in textmode is written to or restored from filename using the vga_gettextfont(3) and vga_puttextfont(3) functions.

     

    FILE FORMAT

    The VGA font file filename has the following format:

    Offset:
    0 - 31 Character 0
    ... ...
    8164 - 8195 Character 255

    Each row of a character bitmap is stored as a byte (8 pixels). The space that is left from the 32-byte buffer for each character is ignored, e.g. a 16 line font uses only offsets 0 - 15 of each character.

    Linux textmode screen resolutions:

    80x25 16 line font 400 scanlines
    80x28 14 line font 400 scanlines
    80x50 8 line font 400 scanlines

    The font sizes and resolutions of extended textmodes depend on the video card type and BIOS:

    132x25 14 line font 350 scanlines (ugly)
    132x25 16 line font 400 scanlines
    132x43 8 line font 350 scanlines (use fix132x43 to fix/improve)
    132x50 8 line font 400 scanlines

    Using a font that has less lines per character than the textmode works, but the characters are smaller. Using a font that is bigger than the textmode font results in the bottom part of characters being cut off.

    The svgalib distribution contains sample fonts with 8, 14 and 16 line characters in the files utils/font8, utils/font14, and utils/font16.

    The convfont (1) program can be used to convert fonts straightforwardly stored character-after-character (i.e. each character only uses 8/14/whatever bytes), to the 32-byte per character format that restorefont requires.

    The purpose of this program is usually to recover from a crashed console due to an svgalib, Xfree or other program bug. First save the state of the SVGA card when on a text console. After the crash restore this state. The savetextmode(1) and textmode(1) script makes this procedure very easy.

    The national/fontpak packages, which include kernel patches, allow different textmode fonts to be used in different virtual consoles. These have been superseded by the kbd package (in the kernel since ages). See the setfont(8) utility of the kbd package as a starting point.

    Recent kernels support up to 2 fonts with 512 chars each. Recent versions of svgalib take this into account and extend the size of the datafile accordingly.

     

    OPTIONS

    -w filename
    write the font to the file filename.
    -r filename
    restore the font from the file filename.

     

    SEE ALSO

    svgalib(7), vgagl(7), libvga.config(5), setfont(8), vga_gettextfont(3), vga_puttextfont(3), dumpreg(1), convfont(1), fix132x43(1), restoretextmode(1), restorepalette(1), runx(1), savetextmode(1), setmclk(1), textmode(1).  

    AUTHOR

    This manual page was edited by Michael Weller <[email protected]>. The exact source of the referenced utility 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 <[email protected]>.

    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.


     

    Index

    NAME
    SYNOPSIS
    DESCRIPTION
    FILE FORMAT
    OPTIONS
    SEE ALSO
    AUTHOR


    Поиск по тексту MAN-ов: 




    Партнёры:
    PostgresPro
    Inferno Solutions
    Hosting by Hoster.ru
    Хостинг:

    Закладки на сайте
    Проследить за страницей
    Created 1996-2024 by Maxim Chirkov
    Добавить, Поддержать, Вебмастеру