vidi(C) (original) (raw)

vidi --set the font and video mode for a video device

Syntax

vidi [ -d ] [ -f fontfile ] font

vidi mode

Description

The vidi command has two functions. With arguments it loads/extracts a font or sets the video mode for the current standard input device. Without arguments, it lists all of the valid video mode and font commands.

Font options

Some video cards support changeable character fonts. Available fonts are font8x8, font8x14, and font8x16. The font options are used as follows:

vidi font

loads font from /usr/lib/vidi/ font.

vidi -d font

writes font to the standard output.

vidi -d -f font fontfile

writes font to fontfile.

vidi -f fontfile font

loads font from fontfile instead of default directory.

Mode options

vidi also sets the mode of the video adapter connected to the standard input. The modes are:

mono

move current screen to the monochrome adapter.

cga

move current screen to the Color Graphics adapter.

ega

move current screen to the Enhanced Graphics adapter.

vga

move current screen to the Video Graphics adapter.

internal

activate the internal monitor on Compaq portable with a plasma screen.

external

activate the external monitor on Compaq portable with a plasma screen.

9bit

extend a font to the 9th bit

no9bit

do not extend a font to the 9th bit

Text and graphics modes

The following tables list the available modes.

Text Modes

Mode	Cols	Rows	Font	Adapter
c40x25	40	25	8x8	CGA (EGA VGA)
e40x25	40	25	8x14	EGA (VGA)
v40x25	40	25	8x16	VGA
m80x25	80	25	8x14	MONO (EGA_MONO VGA_MONO)
c80x25	80	25	8x8	CGA (EGA VGA)
em80x25	80	25	8x14	EGA_MONO (VGA_MONO)
e80x25	80	25	8x14	EGA (VGA)
vm80x25	80	25	8x16	VGA_MONO
v80x25	80	25	8x16	VGA
e80x43	80	43	8x14	EGA (VGA)

+--------+------+------+------+--------------------------+ |Mode | Cols | Rows | Font | Adapter | +--------+------+------+------+--------------------------+ |c40x25 | 40 | 25 | 8x8 | CGA (EGA VGA) | +--------+------+------+------+--------------------------+ |e40x25 | 40 | 25 | 8x14 | EGA (VGA) | +--------+------+------+------+--------------------------+ |v40x25 | 40 | 25 | 8x16 | VGA | +--------+------+------+------+--------------------------+ |m80x25 | 80 | 25 | 8x14 | MONO (EGA_MONO VGA_MONO) | +--------+------+------+------+--------------------------+ |c80x25 | 80 | 25 | 8x8 | CGA (EGA VGA) | +--------+------+------+------+--------------------------+ |em80x25 | 80 | 25 | 8x14 | EGA_MONO (VGA_MONO) | +--------+------+------+------+--------------------------+ |e80x25 | 80 | 25 | 8x14 | EGA (VGA) | +--------+------+------+------+--------------------------+ |vm80x25 | 80 | 25 | 8x16 | VGA_MONO | +--------+------+------+------+--------------------------+ |v80x25 | 80 | 25 | 8x16 | VGA | +--------+------+------+------+--------------------------+ |e80x43 | 80 | 43 | 8x14 | EGA (VGA) | +--------+------+------+------+--------------------------+

Graphics Modes

Mode	Pixel resolution	Colors	Adapter
mode5	320x200	4	CGA (EGA VGA)
mode6	640x200	2	CGA (EGA VGA)
modeD	320x200	16	EGA (VGA)
modeE	640x200	16	EGA (VGA)
modeF	640x350	2 (mono)	EGA (VGA)
mode10	640x350	16	EGA (VGA)
mode11	640x480	2	VGA
mode12	640x480	16	VGA
mode13	320x200	256	VGA

+-------+------------------+----------+---------------+ |Mode | Pixel resolution | Colors | Adapter | +-------+------------------+----------+---------------+ |mode5 | 320x200 | 4 | CGA (EGA VGA) | +-------+------------------+----------+---------------+ |mode6 | 640x200 | 2 | CGA (EGA VGA) | +-------+------------------+----------+---------------+ |modeD | 320x200 | 16 | EGA (VGA) | +-------+------------------+----------+---------------+ |modeE | 640x200 | 16 | EGA (VGA) | +-------+------------------+----------+---------------+ |modeF | 640x350 | 2 (mono) | EGA (VGA) | +-------+------------------+----------+---------------+ |mode10 | 640x350 | 16 | EGA (VGA) | +-------+------------------+----------+---------------+ |mode11 | 640x480 | 2 | VGA | +-------+------------------+----------+---------------+ |mode12 | 640x480 | 16 | VGA | +-------+------------------+----------+---------------+ |mode13 | 320x200 | 256 | VGA | +-------+------------------+----------+---------------+

Mapping console screen fonts

You can use vidi to display the full range of characters on a display adapter. Normally, if you have a console with a display adapter which has a character set defined in a ROM, you will be able to display only those characters defined in that ROM. In addition, themapchan(F)file for the console must correspond to the character set defined in the display adapter ROM to display the entire font set.

For example, if your display adapter ROM has the IBM PC character set defined, but you are using the PC Nordic mapchanfile, you will not be able to display the following characters:

ø Ø L· l· õ Õ ã Ã

To display these characters, use vidito override the character set in ROM with the PC Nordic font file.

In addition to using vidi to override the ROM character set, you can use it to define certain display fonts on some display adapters. For example, the VGA adapter will allow you to display fonts in the sizes 8x8, 8x14, and 8x16.

If you change mapchanmapping for a console with any type of display adapter, you may also need to change the character font correspondingly.

vididefines the font for one of a number of character sets. The font definition files are available in the directory /usr/lib/vidi, and are listed in``Screen font mapping for the console''for the various character sets.

For example, the following command allows you to display the full range of Nordic characters when you are using the PC Nordic mapchan file and your display adapter ROM has the IBM PC character set defined:

vidi -f /usr/lib/vidi/nor.8x14 font8x14

Screen font mapping for the console

If you change themapchan(M)mapping for a console with any type of display adapter, you will also need to change the character font.

vidi defines the font for one of the character sets given below. The following font definition files are available in the directory /usr/lib/vidi:

Character Set	8x8 font	8x14 font	8x16 font
Codepage 850	850.8x8	850.8x14	850.8x16
ISO 8859	iso.8x8	iso.8x14	iso.8x16
ISO 8859-2	ISO8859-2.8x8	ISO8859-2.8x14	ISO8859-2.8x16
ISO 8859-3	ISO8859-3.8x8	ISO8859-3.8x14	ISO8859-3.8x16
ISO 8859-4	ISO8859-4.8x8	ISO8859-4.8x14	ISO8859-4.8x16
ISO 8859-5	ISO8859-5.8x8	ISO8859-5.8x14	ISO8859-5.8x16
ISO 8859-6	ISO8859-6.8x8	ISO8859-6.8x14	ISO8859-6.8x16
ISO 8859-7	ISO8859-7.8x8	ISO8859-7.8x14	ISO8859-7.8x16
ISO 8859-8	ISO8859-8.8x8	ISO8859-8.8x14	ISO8859-8.8x16
ISO 8859-9	ISO8859-9.8x8	ISO8859-9.8x14	ISO8859-9.8x16
ISO 8859-10	ISO8859-10.8x8	ISO8859-10.8x14	ISO8859-10.8x16
ISO 8859-15	ISO8859-15.8x8	ISO8859-15.8x14	ISO8859-15.8x16
PC Greek	grk.8x8	grk.8x14	grk.8x16
PC Israeli	isr.8x8	isr.8x14	isr.8x16
PC Nordic	nor.8x8	nor.8x14	nor.8x16
PC Portuguese	por.8x8	por.8x14	por.8x16
PC Spanish	spa.8x8	spa.8x14	spa.8x16
PC Standard	font.8x8	font.8x14	font.8x16

Limitations

The internal and external commands should only be used on Compaq compatible displays.

You must select the mode no9bit before loading ISO8859.* fonts. This is to prevent characters appearing corrupted in certain localized codesets.

Standards conformance

vidiis not part of any currently supported standard; it is an extension of AT&T System V provided by The Santa Cruz Operation, Inc.