Gecko [ fernandoquevedodop.com ]

Name	Size	Permission
Features	[ DIR ]	drwxr-xr-x
Kern	[ DIR ]	drwxr-xr-x
Mort	[ DIR ]	drwxr-xr-x
Woff	[ DIR ]	drwxr-xr-x
AATKern.pm	2.89 KB	-rw-r--r--
AATutils.pm	23.07 KB	-rw-r--r--
Anchor.pm	4.8 KB	-rw-r--r--
Bsln.pm	3.72 KB	-rw-r--r--
Changes_old.txt	2.17 KB	-rw-r--r--
Cmap.pm	23.91 KB	-rw-r--r--
Coverage.pm	8.38 KB	-rw-r--r--
Cvt_.pm	1.4 KB	-rw-r--r--
DSIG.pm	1.97 KB	-rw-r--r--
Delta.pm	3.39 KB	-rw-r--r--
Dumper.pm	2.56 KB	-rw-r--r--
EBDT.pm	7.16 KB	-rw-r--r--
EBLC.pm	6.3 KB	-rw-r--r--
Fdsc.pm	2.18 KB	-rw-r--r--
Feat.pm	4.44 KB	-rw-r--r--
Fmtx.pm	1.96 KB	-rw-r--r--
Font.pm	29.07 KB	-rw-r--r--
Fpgm.pm	1.66 KB	-rw-r--r--
GDEF.pm	13.64 KB	-rw-r--r--
GPOS.pm	20.74 KB	-rw-r--r--
GSUB.pm	8.64 KB	-rw-r--r--
Glat.pm	3.42 KB	-rw-r--r--
Gloc.pm	2.56 KB	-rw-r--r--
Glyf.pm	3.68 KB	-rw-r--r--
Glyph.pm	25.25 KB	-rw-r--r--
GrFeat.pm	8.33 KB	-rw-r--r--
Hdmx.pm	3.12 KB	-rw-r--r--
Head.pm	5.84 KB	-rw-r--r--
Hhea.pm	3.54 KB	-rw-r--r--
Hmtx.pm	4.61 KB	-rw-r--r--
Kern.pm	8.5 KB	-rw-r--r--
LTSH.pm	1.67 KB	-rw-r--r--
Loca.pm	4.72 KB	-rw-r--r--
Manual.pod	8.96 KB	-rw-r--r--
Maxp.pm	4.17 KB	-rw-r--r--
Mort.pm	2.1 KB	-rw-r--r--
Name.pm	27.78 KB	-rw-r--r--
OS_2.pm	38.07 KB	-rw-r--r--
OTTags.pm	42.94 KB	-rw-r--r--
OldCmap.pm	9.66 KB	-rw-r--r--
OldMort.pm	25.53 KB	-rw-r--r--
PCLT.pm	2.49 KB	-rw-r--r--
PSNames.pm	132.77 KB	-rw-r--r--
Post.pm	9.53 KB	-rw-r--r--
Prep.pm	1.61 KB	-rw-r--r--
Prop.pm	3.47 KB	-rw-r--r--
Segarr.pm	9.53 KB	-rw-r--r--
Silf.pm	28.24 KB	-rw-r--r--
Sill.pm	3.2 KB	-rw-r--r--
Table.pm	11.15 KB	-rw-r--r--
Ttc.pm	3.87 KB	-rw-r--r--
Ttopen.pm	44.24 KB	-rw-r--r--
Useall.pm	2.16 KB	-rw-r--r--
Utils.pm	18.51 KB	-rw-r--r--
Vhea.pm	3.57 KB	-rw-r--r--
Vmtx.pm	1.66 KB	-rw-r--r--
Win32.pm	1.08 KB	-rw-r--r--
Woff.pm	1.09 KB	-rw-r--r--
XMLparse.pm	5.49 KB	-rw-r--r--

Code Editor : EBLC.pm

package Font::TTF::EBLC;

=head1 NAME

Font::TTF::EBLC - Embeeded Bitmap Location Table

=head1 DESCRIPTION

Contains the sizes and glyph ranges of bitmaps, and the offsets to
glyph bitmap data in indexSubTables for EBDT.

Possibly contains glyph metrics information.

=head1 INSTANCE VARIABLES

The information specified 'B<(R)>ead only' is read only, those
are calculated from EBDT, when it is 'update'-ed.

=over 4

=item bitmapSizeTable

An array of tables of following information

=over 8

=item indexSubTableArrayOffset (R)

=item indexTablesSize (R)

=item numberOfIndexSubTables (R)

=item colorRef

=item hori

=item vert

=item startGlyphIndex (R)

=item endGlyphIndex (R)

=item ppemX

=item ppemY

=item bitDepth

=item flags

=back

=item indexSubTableArray (R)

An array which contains range information.

=item indexSubTable (R)

An array which contains offsets of EBDT table.

=back

=head1 METHODS

=cut

use strict;
use vars qw(@ISA);
require Font::TTF::Table;

@ISA = qw(Font::TTF::Table);

=head2 $t->read

Reads the location information of embedded bitmap from the TTF file into memory

=cut

sub read
{
    my ($self) = @_;

$self->SUPER::read or return $self;

my ($fh) = $self->{' INFILE'};
    my ($i, $dat);
    my ($indexSubTableArrayOffset,
        $indexTablesSize,
        $numberOfIndexSubTables,
        $colorRef);
    my ($startGlyphIndex,
        $endGlyphIndex,
        $ppemX, $ppemY,
        $bitDepth, $flags);
    my (@hori, @vert);
    my ($bst, $ista, $ist);
    my ($j);

# eblcHeader
    $fh->read($dat, 4);
    $self->{'version'} = unpack("N",$dat);

$fh->read($dat, 4);
    $self->{'Num'} = unpack("N",$dat);

# bitmapSizeTable
    for ($i = 0; $i < $self->{'Num'}; $i++) {
        $fh->read($dat, 16);
        ($indexSubTableArrayOffset, $indexTablesSize,
         $numberOfIndexSubTables, $colorRef) = unpack("NNNN", $dat);
        $fh->read($dat, 12); @hori = unpack("cccccccccccc", $dat);
        $fh->read($dat, 12); @vert = unpack("cccccccccccc", $dat);

$fh->read($dat, 8);
        ($startGlyphIndex, $endGlyphIndex,
         $ppemX, $ppemY, $bitDepth, $flags) = unpack("nnCCCC", $dat);

$self->{'bitmapSizeTable'}[$i] = {
            'indexSubTableArrayOffset' => $indexSubTableArrayOffset,
            'indexTablesSize' => $indexTablesSize,
            'numberOfIndexSubTables' => $numberOfIndexSubTables,
            'colorRef' => $colorRef,
            'hori' => [@hori],
            'vert' => [@vert],
            'startGlyphIndex' => $startGlyphIndex,
            'endGlyphIndex' => $endGlyphIndex,
            'ppemX' => $ppemX,
            'ppemY' => $ppemY,
            'bitDepth' => $bitDepth,
            'flags' => $flags
            };
    }

for ($i = 0; $i < $self->{'Num'}; $i++) {
        my ($count, $x);

$bst = $self->{'bitmapSizeTable'}[$i];

for ($j = 0; $j < $bst->{'numberOfIndexSubTables'}; $j++) {
            $ista = {};

# indexSubTableArray
            $self->{'indexSubTableArray'}[$i][$j] = $ista;
            $fh->read($dat, 8);
            ($ista->{'firstGlyphIndex'},
             $ista->{'lastGlyphIndex'},
             $ista->{'additionalOffsetToIndexSubtable'})
                = unpack("nnN", $dat);
        }

# indexSubTable
        # indexSubHeader
        $fh->read($dat, 8);
        ($bst->{'indexFormat'}, 
         $bst->{'imageFormat'}, 
         $bst->{'imageDataOffset'}) = unpack("nnN", $dat);

die "Only indexFormat == 1 is supported" unless ($bst->{'indexFormat'} == 1);

for ($j = 0; $j < $bst->{'numberOfIndexSubTables'}; $j++) {
            $ista = $self->{'indexSubTableArray'}[$i][$j];
            $count = $ista->{'lastGlyphIndex'} - $ista->{'firstGlyphIndex'} + 1 + 1;
            $fh->seek($self->{' OFFSET'} + $bst->{'indexSubTableArrayOffset'}
                      + $ista->{'additionalOffsetToIndexSubtable'} + 8, 0);

#           $count += 2 if $j < $bst->{'numberOfIndexSubTables'} - 1;

$fh->read($dat, 4*$count);

$self->{'indexSubTable'}[$i][$j] = [unpack("N*", $dat)];
        }
    }

$self;
}

=head2 $t->out($fh)

Outputs the location information of embedded bitmap for this font.

=cut

sub out
{
    my ($self, $fh) = @_;
    my ($i);

return $self->SUPER::out($fh) unless $self->{' read'};

my ($bst_array) = $self->{'bitmapSizeTable'};

$fh->print(pack("N", 0x00020000));
    $fh->print(pack("N", $self->{'Num'}));

for ($i = 0; $i < $self->{'Num'}; $i++) {
        my ($bst) = $bst_array->[$i];

$fh->print(pack("NNNN", 
                        $bst->{'indexSubTableArrayOffset'},
                        $bst->{'indexTablesSize'},
                        $bst->{'numberOfIndexSubTables'},
                        $bst->{'colorRef'}));
        $fh->print(pack("cccccccccccc", @{$bst->{'hori'}}));
        $fh->print(pack("cccccccccccc", @{$bst->{'vert'}}));
        $fh->print(pack("nnCCCC", $bst->{'startGlyphIndex'}, 
                        $bst->{'endGlyphIndex'}, $bst->{'ppemX'},
                        $bst->{'ppemY'}, $bst->{'bitDepth'}, $bst->{'flags'}));
    }

for ($i = 0; $i < $self->{'Num'}; $i++) {
        my ($bst) = $bst_array->[$i];
        my ($j);

for ($j = 0; $j < $bst->{'numberOfIndexSubTables'}; $j++) {
            my ($ista) = $self->{'indexSubTableArray'}[$i][$j];

$fh->print("nnN",
                       $ista->{'firstGlyphIndex'},
                       $ista->{'lastGlyphIndex'},
                       $ista->{'additionalOffsetToIndexSubtable'});
        }

$fh->print(pack("nnN", $bst->{'indexFormat'}, $bst->{'imageFormat'}, 
                        $bst->{'imageDataOffset'}));

die "Only indexFormat == 1 is supported" unless ($bst->{'indexFormat'} == 1);

for ($j = 0; $j < $bst->{'numberOfIndexSubTables'}; $j++) {
            $fh->print(pack("N*", $self->{'indexSubTable'}[$i][$j]));
        }
    }
}

=head1 BUGS

Only indexFormat ==1 is implemented.  XML output is not supported (yet).

=head1 AUTHOR

NIIBE Yutaka L<mailto:gniibe@fsij.org>.  
This was written at the CodeFest Akihabara 2006 hosted by FSIJ.

Patch sent with licensing requirements??

=head1 LICENSING

This module is released under the terms of the Artistic License 2.0. 
For details, see the full text of the license in the file LICENSE.

=cut

${this.title}

Code Editor : EBLC.pm