5 use Data::Dump qw(dump);
7 # DG compression is documented in ZPL II Programming Guide Volume Two, page 71-72
9 my $compress = $ENV{COMPRESS} || 0;
11 my $pnm_file = shift @ARGV || die "usage: $0 print.pnm";
13 open(my $fh, '<', $pnm_file);
14 my $p4 = <$fh>; chomp $p4;
15 die "no P4 header in [$p4] from $pnm_file" unless $p4 eq 'P4';
16 my $size = <$fh>; chomp $size;
17 my ( $w, $h ) = split(/ /,$size,$2);
18 warn "WARNING: width of $pnm_file not 832 but $w !\n" if $w != 832;
23 print "^XA~TA000~JSN^LT18^MNW^MTD^PON^PMN^LH0,0^JMA^PR4,4^MD13^JUS^LRN^CI0^XZ";
25 printf "~DG000.GRF,%d,%d,\r\n", $w / 8 * $h, $w / 8;
29 foreach my $y ( 0 .. $h - 1 ) {
30 my $line = substr( $bitmap, $y * ( $w / 8 ), $w / 8 );
31 if ( $line eq $last_line ) {
32 print ":" && warn "# $y repeat previous line\n";
34 my $hex = unpack('H*', $line);
37 $hex =~ s/0+$/,/ && warn "# $y fill 0 to right\n";
38 $hex =~ s/F+$/!/i && warn "# $y fill 1 to right\n";
44 print "^XA\r\n^MMT\r\n^LL0328\r\n^PW831\r\n^LS0\r\n^FT0,352^XG000.GRF,1,1^FS\r\n^PQ1,0,1,Y^XZ\r\n^XA^ID000.GRF^FS^XZ";