From 7647b790338dbb82c84e8cfee1e8b641250af373 Mon Sep 17 00:00:00 2001
From: Stefan `Sec` Zehl <sec@42.org>
Date: Thu, 12 May 2011 20:32:41 +0200
Subject: [PATCH] ugly hack to convert .bdf to c files. Turns out, fontforge's
 rasterizer sucks, so my .bdf files were ugly. I suggest you use makefont.pl
 instead.

---
 tools/bdf2c.pl | 126 +++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 126 insertions(+)
 create mode 100755 tools/bdf2c.pl

diff --git a/tools/bdf2c.pl b/tools/bdf2c.pl
new file mode 100755
index 0000000..e9fb653
--- /dev/null
+++ b/tools/bdf2c.pl
@@ -0,0 +1,126 @@
+#!/usr/bin/perl
+use warnings;
+
+$|=1;
+
+my %chars;
+
+while (<>){
+chomp;
+/^ENDCHAR/ && do {
+	warn "Char $cchar has strange height?\n" if ($#char+1 != $height);
+	for (1..$offy){
+		push @char,("0"x$width);
+	};
+	for (@char){
+		$_=("0"x$offx).$_;
+	};
+	$inchar=0;
+#	print "Char: $cchar:\n",join("\n",@char),"\n";
+	$chars{$cchar}=[@char];
+	@char=();
+};
+if($inchar){
+#	print "_: $_\n"; print "H: ",pack("H*",$_),"\n";
+	$x=unpack("B*",pack("H*",$_));
+	$x=substr($x,0,$width);
+	push @char,$x;
+#	print $x,"\n";
+	next;
+};
+/^BITMAP/ && do {$inchar=1;};
+	
+/^PIXEL_SIZE (.*)/ && do { $size=$1;$size+=0;};
+/^ENCODING (.*)/ && do {$cchar=$1};
+/^BBX (\d+) (\d+) (\d+) ([-\d]+)/ && do {$width=$1;$height=$2;$offx=$3;$offy=$4+$fontd;};
+/^FONT_ASCENT (.*)/ && do {$fonta=$1};
+/^FONT_DESCENT (\d+)/ && do {$fontd=$1;$byte=int(($fonta+$fontd-1)/8)+1;print "This will be a $byte byte font\n";};
+/^DWIDTH (\d+) (\d+)/ && do {$width=$1;die "H-offset?" if $2!=0};
+/^FACE_NAME "(.*)"/ && do {$font=$1;};
+}
+
+# Beautify Font Name.
+$font.=" ${size}pt";
+
+$fonts=$font;
+$fonts=~s/ //g;
+$fonts=~s/Bitstream//;
+$fonts=~s/Sans//;
+
+$file=$fonts;
+$file=~s/pt$//;
+$file=~y/A-Z/a-z/;
+
+# Fine. Now write it back out...
+
+open (F,">",$file.".c")||die;
+select(F);
+
+print <<EOF
+#include "$file.h"
+
+/* Font data for $font */
+
+/* Bitmaps */
+const uint8_t ${fonts}Bitmaps[] = {
+EOF
+;
+
+my $offset=0;
+for (32..126){
+	warn "Char $_ not available" if !defined $chars{$_};
+	$char=$chars{$_};
+
+	@tchar=();
+	for $l (@$char){
+#		print "tt: $l\n";
+		for $y (1..length($l)){
+#			$tchar[$y-1].=substr($l,$y-1,1);
+			$tchar[$y-1]="" if !defined $tchar[$y-1];
+			$tchar[$y-1]=substr($l,$y-1,1).$tchar[$y-1];
+		};
+	};
+#	print "Turn: $_:\n",join("\n",@tchar),"\n";
+	print "/* '",chr $_,"' at $offset */\n";
+	for (@tchar){
+		$h=unpack("H*",pack("B*",$_));
+		$h= pack("B*",$_).(chr(0).chr(0));
+		for $b (1..$byte){
+			printf "0x%02x,",ord(substr($h,$b-1,1));
+		};
+#		print map {"0x".$_.", "} grep {$_ ne ""} split(/(..)/,$h);
+		($ll=$_)=~y/01/ */;
+		print " /* $ll */ \n";
+	};
+	push @offsets,sprintf " {%2d,%4d}, /* %c */\n",scalar(@tchar),$offset,$_;
+	$offset+=$byte*scalar(@tchar);
+};
+
+print <<EOF;
+};
+
+/* Character descriptors */
+const FONT_CHAR_INFO ${fonts}Descriptors[] = {
+EOF
+
+print @offsets;
+
+print <<EOF;
+};
+
+/* Font info */
+const struct FONT_DEF Font_$fonts = {0,$size,' ','~',
+    ${fonts}Bitmaps,
+    ${fonts}Descriptors,
+};
+EOF
+
+open (F,">",$file.".h")||die;
+select(F);
+print <<EOF;
+#include "fonts.h"
+
+extern const struct FONT_DEF Font_$fonts;
+EOF
+close(F);
+