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