X-Git-Url: https://git.mdrn.pl/librarian.git/blobdiff_plain/e9aeedc51047d8d5e9e45c5253c776f8994da965..3a0c83394d5783715fab2be29fa1a9cfc3574e28:/src/librarian/font-optimizer/ext/Font-TTF/lib/Font/TTF/EBDT.pm diff --git a/src/librarian/font-optimizer/ext/Font-TTF/lib/Font/TTF/EBDT.pm b/src/librarian/font-optimizer/ext/Font-TTF/lib/Font/TTF/EBDT.pm deleted file mode 100644 index 257e8d7..0000000 --- a/src/librarian/font-optimizer/ext/Font-TTF/lib/Font/TTF/EBDT.pm +++ /dev/null @@ -1,285 +0,0 @@ -package Font::TTF::EBDT; - -=head1 NAME - -Font::TTF::EBDT - Embeeded Bitmap Data Table - -=head1 DESCRIPTION - -Contains the metrics and bitmap image data. - -=head1 INSTANCE VARIABLES - -Only has 'bitmap' instance variable. It is an array of assosiative -array keyed by glyph-id. The element is an object which consists -of metric information and image data. - -=over 4 - -=item bitmap object - -=over 8 -=item format -Only 7 is supported. -=item height -=item width -=item horiBearingX -=item horiBearingY -=item horiAdvance -=item vertBearingX -=item vertBearingY -=item vertAdvance -=item imageData - -=back - -=back - -=head1 METHODS - -=cut - -use strict; -use vars qw(@ISA); -require Font::TTF::Table; - -@ISA = qw(Font::TTF::Table); - - -=head2 $t->read - -Reads the embedded bitmap data from the TTF file into memory. -This routine should be called _after_ {'EBLC'}->read. - -=cut - -sub read -{ - my ($self) = shift; - my ($fh) = $self->{' INFILE'}; - my ($i, $dat); - my ($eblc) = $self->{' PARENT'}->{'EBLC'}; - my ($bst_array); - - $eblc->read; - $self->SUPER::read || return $self; - - # ebdtHeader - $fh->read($dat, 4); # version - - $bst_array = $eblc->{'bitmapSizeTable'}; - - for ($i = 0; $i < $eblc->{'Num'}; $i++) - { - my ($bst) = $bst_array->[$i]; - my ($format) = $bst->{'imageFormat'}; - my ($offset) = $bst->{'imageDataOffset'}; - my ($j); - my ($ist_array) = $eblc->{'indexSubTableArray'}[$i]; - my ($bitmap) = {}; - - die "Only EBDT format 7 is implemented." unless ($format == 7); - - $self->{'bitmap'}[$i] = $bitmap; - - for ($j = 0; $j < $bst->{'numberOfIndexSubTables'}; $j++) { - my ($ista) = $ist_array->[$j]; - my ($offsetArray) = $eblc->{'indexSubTable'}[$i][$j]; - my ($p, $o0, $c); - -# if ($fh->tell != $self->{' OFFSET'} + $offset) { -# $fh->seek($self->{' OFFSET'} + $offset, 0); -# } - - $p = 0; - $o0 = $offsetArray->[$p++]; - for ($c = $ista->{'firstGlyphIndex'}; $c <= $ista->{'lastGlyphIndex'}; $c++) - { - my ($b) = {}; - my ($o1) = $offsetArray->[$p++]; - my ($len) = $o1 - $o0 - 8; - -# if ($fh->tell != $self->{' OFFSET'} + $offset + $o0) { -# $fh->seek($self->{' OFFSET'} + $offset + $o0, 0); -# } - - $fh->read($dat, 8); - ($b->{'height'}, - $b->{'width'}, - $b->{'horiBearingX'}, - $b->{'horiBearingY'}, - $b->{'horiAdvance'}, - $b->{'vertBearingX'}, - $b->{'vertBearingY'}, - $b->{'vertAdvance'}) - = unpack("cccccccc", $dat); - - $fh->read($dat, $len); - $b->{'imageData'} = $dat; - $b->{'format'} = 7; # bitmap and bigMetrics - - $bitmap->{$c} = $b; - $o0 = $o1; - } - - $offset += $o0; - } - } - - $self; -} - - -=head2 $t->update - -Update EBLC information using EBDT data. - -=cut - -sub get_regions -{ - my (@l) = @_; - my (@r) = (); - my ($e); - my ($first); - my ($last); - - $first = $l[0]; - $last = $first - 1; - foreach $e (@l) { - if ($last + 1 != $e) { # not contiguous - $r[++$#r] = [$first, $last]; - $first = $e; - } - - $last = $e; - } - - $r[++$#r] = [$first, $last]; - @r; -} - -sub update -{ - my ($self) = @_; - my ($eblc) = $self->{' PARENT'}->{'EBLC'}; - my ($bst_array) = []; - my ($offset) = 4; - my ($i); - my ($bitmap_array) = $self->{'bitmap'}; - my ($istao) = 8 + 48 * $eblc->{'Num'}; - - $eblc->{'bitmapSizeTable'} = $bst_array; - - for ($i = 0; $i < $eblc->{'Num'}; $i++) { - my ($bst) = {}; - my ($ist_array) = []; - my ($j); - my ($bitmap) = $bitmap_array->[$i]; - my (@regions) = get_regions(sort {$a <=> $b} keys (%$bitmap)); - my ($aotis) = 8 * (1+$#regions); - - $bst->{'indexFormat'} = 1; - $bst->{'imageFormat'} = 7; - $bst->{'imageDataOffset'} = $offset; - $bst->{'numberOfIndexSubTables'} = 1+$#regions; - $bst->{'indexSubTableArrayOffset'} = $istao; - $bst->{'colorRef'} = 0; - - $bst->{'startGlyphIndex'} = $regions[0][0]; - $bst->{'endGlyphIndex'} = $regions[-1][1]; - $bst->{'bitDepth'} = 1; - $bst->{'flags'} = 1; # Horizontal - $bst_array->[$i] = $bst; - - $eblc->{'indexSubTableArray'}[$i] = $ist_array; - for ($j = 0; $j <= $#regions; $j++) { - my ($ista) = {}; - my ($offsetArray) = []; - my ($p, $o0, $c); - $ist_array->[$j] = $ista; - - $ista->{'firstGlyphIndex'} = $regions[$j][0]; - $ista->{'lastGlyphIndex'} = $regions[$j][1]; - $ista->{'additionalOffsetToIndexSubtable'} = $aotis; - $eblc->{'indexSubTable'}[$i][$j] = $offsetArray; - $p = 0; - $o0 = 0; - for ($c = $regions[$j][0]; $c <= $regions[$j][1]; $c++) { - my ($b) = $bitmap->{$c}; - - $offsetArray->[$p++] = $o0; - $o0 += 8 + length($b->{'imageData'}); - } - - $offsetArray->[$p++] = $o0; - - $aotis += ($regions[$j][1] - $regions[$j][0] + 1 + 1)*4; - $offset += $o0; - - # Do we need the element of 0x10007 and absolute offset here, - # at the end of offsetArray? -# if ($j + 1 <= $#regions) { -# $offsetArray->[$p++] = 0x10007; -# $offsetArray->[$p++] = $offset; -# $aotis += 8; -# } - } - - $istao += $aotis + 8; - $bst->{'indexTablesSize'} = $aotis + 8; - } -} - -=head2 $t->out($fh) - -Outputs the bitmap data of embedded bitmap for this font. - -=cut - -sub out -{ - my ($self, $fh) = @_; - my ($eblc) = $self->{' PARENT'}->{'EBLC'}; - my ($i); - my ($bitmap_array) = $self->{'bitmap'}; - - $fh->print(pack("N", 0x00020000)); - - for ($i = 0; $i < $eblc->{'Num'}; $i++) { - my ($j); - my ($bitmap) = $bitmap_array->[$i]; - my (@regions) = get_regions(sort {$a <=> $b} keys (%$bitmap)); - - for ($j = 0; $j <= $#regions; $j++) { - my ($c); - - for ($c = $regions[$j][0]; $c <= $regions[$j][1]; $c++) { - my ($b) = $bitmap->{$c}; - - $fh->print(pack("cccccccc", - $b->{'height'}, $b->{'width'}, - $b->{'horiBearingX'}, $b->{'horiBearingY'}, - $b->{'horiAdvance'}, $b->{'vertBearingX'}, - $b->{'vertBearingY'}, $b->{'vertAdvance'})); - $fh->print($b->{'imageData'}); - } - } - } -} - -1; - -=head1 BUGS - -Only Format 7 is implemented. XML output is not supported (yet). - -=head1 AUTHOR - -NIIBE Yutaka L. See L for copyright and -licensing. - -This was written at the CodeFest Akihabara 2006 hosted by FSIJ. - -=cut -