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|
#!/usr/bin/perl -w
#
# Simple convertor from bdf to gd font format.
#
# Author: Jan Pazdziora, adelton@fi.muni.cz, http://www.fi.muni.cz/~adelton/
# at Faculty of Informatics, Masaryk University in Brno, Czech Republic.
#
# Example of use:
# fstobdf -s fontserverhost:7100 -fn 8x16 | ./bdftogd FontLarge gdfontl
#
use strict;
my $VERSION = '0.60';
my $now = localtime;
if (@ARGV != 2)
{ die "usage: bdftogd fontname filename, eg. bdftogd FontLarge gdfontl\n"; }
my $gdname = shift;
$gdname = 'gd' . $gdname unless $gdname =~ /^gd/i;
my $filename = shift;
$filename = 'gd' . $filename unless $filename =~ /^gd/i;
if (-f "$filename.c") { die "File $filename.c already exists, won't overwrite\n"; }
if (-f "$filename.h") { die "File $filename.h already exists, won't overwrite\n"; }
my ($width, $height);
my (@data, @left, @bottom);
my ($globalleft, $globaltop);
my ($minchar, $maxchar);
my ($copyright, $fontdef);
my $currentchar;
my $gobitmap = 0;
while (<>)
{
chomp;
s/\r$//;
my ($tag, $value) = split / /, $_, 2;
die "Font is not fixed width\n"
if $tag eq 'SPACING' and not $value =~ /[CM]/i;
$currentchar = $value if $tag eq 'ENCODING';
$minchar = $currentchar if not defined $minchar
or $currentchar < $minchar;
$maxchar = $currentchar if not defined $maxchar
or $currentchar > $maxchar;
if ($tag eq 'ENDCHAR')
{
$gobitmap = 0;
my $bottom = $globaltop - $bottom[$currentchar];
if ($bottom > 0)
{ $data[$currentchar] = substr $data[$currentchar], 0, length($data[$currentchar]) - $bottom * $width; }
else
{ $data[$currentchar] .= '0' x (-$bottom * $width); }
}
if ($tag eq 'FONTBOUNDINGBOX')
{
my ($tag, $wid, $hei, $left, $top) = split / /;
if (defined $top)
{
$globalleft = $left;
$globaltop = $top;
$height = $hei;
$width = $wid;
}
}
if ($tag eq 'FONT' and not defined $fontdef)
{ $fontdef = $value; }
if ($tag eq 'COPYRIGHT' and not defined $copyright)
{ $copyright = $value; }
if ($tag eq 'BBX')
{
my ($tag, $wid, $hei, $left, $bottom) = split / /;
if (defined $bottom)
{
$left[$currentchar] = $left;
$bottom[$currentchar] = $bottom;
}
}
if ($gobitmap)
{
my $value = pack 'H*', $_;
my $bits = unpack 'B*', $value;
$bits = ('0' x $left[$currentchar]) . $bits;
$bits .= '0' x ($width - length $bits);
$bits = substr $bits, 0, $width;
$data[$currentchar] .= $bits;
}
if ($tag eq 'BITMAP')
{
$gobitmap = 1;
$data[$currentchar] = '';
}
}
my $info = <<"EOF";
/*
This is a header file for gd font, generated using
bdftogd version $VERSION by Jan Pazdziora, adelton\@fi.muni.cz
from bdf font
$fontdef
at $now.
EOF
if (defined $copyright)
{
$info .= <<"EOF";
The original bdf was holding following copyright:
$copyright
*/
EOF
}
else
{
$info .= <<"EOF";
No copyright info was found in the original bdf.
*/
EOF
}
open FILEC, "> $filename.c" or die "Error writing $filename.c: $!\n";
open FILEH, "> $filename.h" or die "Error writing $filename.h: $!\n";
print FILEC <<"EOF";
$info
#include "$filename.h"
char ${gdname}Data[] = {
EOF
$minchar = 0 unless defined $minchar;
$maxchar = 255 unless defined $maxchar;
for (my $i = $minchar; $i <= $maxchar; $i++)
{
$data[$i] = '' unless defined $data[$i];
$data[$i] = '0' x ($width * $height - length $data[$i]) . $data[$i];
print FILEC "/* Char $i */\n";
for my $line (0 .. $height - 1)
{ print FILEC join ',', split(//, substr($data[$i], $line * $width, $width)), "\n"; }
print FILEC "\n";
next;
for my $line (0 .. $height - 1)
{ print substr($data[$i], $line * $width, $width), "\n"; }
}
my $capdef = "\U_${filename}_H_";
print FILEC <<"EOF";
};
gdFont ${gdname}Rep = {
@{[ $maxchar - $minchar + 1]},
$minchar,
$width,
$height,
${gdname}Data
};
gdFontPtr ${gdname} = &${gdname}Rep;
/* This file has not been truncated. */
EOF
close FILEC;
print FILEH <<"EOF";
#ifndef $capdef
#define $capdef 1
$info
#include "gd.h"
extern gdFontPtr $gdname;
#endif
EOF
1;
|
