e7fd9688ea
Prepare support to be able to handle font data in loader, consolidate data structures to sys/font.h and update vtfontcvt. vtfontcvt update is about to output set of glyphs in form of C source, the implementation does allow to output compressed or uncompressed font bitmaps. Reviewed by: bcr Differential Revision: https://reviews.freebsd.org/D24189
90 lines
2.8 KiB
Groff
90 lines
2.8 KiB
Groff
.\" Copyright (c) 2014 The FreeBSD Foundation. All rights reserved.
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.\" Redistribution and use in source and binary forms, with or without
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.\" modification, are permitted provided that the following conditions
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.\" notice, this list of conditions and the following disclaimer in the
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.\" documentation and/or other materials provided with the distribution.
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.\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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.\" SUCH DAMAGE.
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.\" $FreeBSD$
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.\"
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.Dd Mar 10, 2020
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.Dt VTFONTCVT 8
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.Os
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.Sh NAME
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.Nm vtfontcvt
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.Nd "convert font files for use by the video console"
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.Sh SYNOPSIS
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.Nm
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.Op Fl n
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.Op Fl f Ar font Ns | Ns Ar source Ns | Ns Ar compressed-source
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.Op Fl h Ar height
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.Fl o Ar output_file
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.Op Fl v
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.Op Fl w Ar width
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.Ar normal_font
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.Op Ar bold_font
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.Sh DESCRIPTION
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The
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.Nm
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utility reads source font files in either BDF or Unifont HEX format and
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outputs a binary font file, C source, or C source with font data compressed
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by using LZ4 compression method.
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The output in C source is intended to be used to embed the font into program
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binary.
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The binary font file is for use by
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.Xr vt 4 .
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HEX format files must have the file extension
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.Pa .hex .
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.Pp
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The following options are available:
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.Bl -tag -width "12345678"
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.It Fl f Ar font Ns | Ns Ar source Ns | Ns Ar compressed-source
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Specify the output format.
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The default is binary
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.Ar font
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file.
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.It Fl h Ar height
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Set font height.
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The default is 16.
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Font height is set automatically for HEX files that have a
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.Ql # Height: Ar height
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comment before any font data.
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.It Fl n
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Do not apply output filtering with C source output.
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.It Fl o Ar output_file
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Specify the name for the output file.
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.It Fl v
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Display verbose statistics about the converted font.
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.It Fl w Ar width
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Set font width.
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The default is 8.
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Font width is set automatically for HEX files that have a
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.Ql # Width: Ar width
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comment before any font data.
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.El
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.Sh SEE ALSO
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.Xr vidcontrol 1 ,
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.Xr vt 4
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.Sh HISTORY
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The
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.Nm
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utility first appeared in
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.Fx 10.1 .
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