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#=======================================================================
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# ____ ____ _____ _ ____ ___ ____
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# | _ \| _ \| ___| _ _ / \ | _ \_ _| |___ \
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# | |_) | | | | |_ (_) (_) / _ \ | |_) | | __) |
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# | __/| |_| | _| _ _ / ___ \| __/| | / __/
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# |_| |____/|_| (_) (_) /_/ \_\_| |___| |_____|
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#
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# A Perl Module Chain to faciliate the Creation and Modification
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# of High-Quality "Portable Document Format (PDF)" Files.
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#
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# Copyright 1999-2005 Alfred Reibenschuh .
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#
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#=======================================================================
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#
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# This library is free software; you can redistribute it and/or
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# modify it under the terms of the GNU Lesser General Public
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# License as published by the Free Software Foundation; either
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# version 2 of the License, or (at your option) any later version.
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#
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# This library is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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# Lesser General Public License for more details.
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#
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# You should have received a copy of the GNU Lesser General Public
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# License along with this library; if not, write to the
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# Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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# Boston, MA 02111-1307, USA.
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#
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# $Id: GD.pm,v 2.0 2005/11/16 02:18:23 areibens Exp $
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#
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#=======================================================================
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package PDF::API3::Compat::API2::Resource::XObject::Image::GD;
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35
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BEGIN {
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37
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1
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1
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use PDF::API3::Compat::API2::Util;
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1
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3
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1
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247
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1
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1
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8
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use PDF::API3::Compat::API2::Basic::PDF::Utils;
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1
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3
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1
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138
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1
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1
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6
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use PDF::API3::Compat::API2::Resource::XObject::Image;
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1
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3
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1
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40
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41
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1
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1
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7
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use POSIX;
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1
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2
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1
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9
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42
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43
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1
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1
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3604
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use vars qw(@ISA $VERSION);
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1
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3
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1
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194
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45
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1
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1
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@ISA = qw( PDF::API3::Compat::API2::Resource::XObject::Image );
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1
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55
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( $VERSION ) = sprintf '%i.%03i', split(/\./,('$Revision: 2.0 $' =~ /Revision: (\S+)\s/)[0]); # $Date: 2005/11/16 02:18:23 $
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49
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}
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1
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1
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8
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no warnings qw[ deprecated recursion uninitialized ];
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1
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4
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1
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604
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51
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52
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=item $res = PDF::API3::Compat::API2::Resource::XObject::Image::GD->new $pdf, $obj [, $name]
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54
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Returns a image object from a GD::Image.
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56
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=cut
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57
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58
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sub new {
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59
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0
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0
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1
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my ($class,$pdf,$obj,$name,@opts) = @_;
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60
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0
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my $self;
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61
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62
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0
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0
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$class = ref $class if ref $class;
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64
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0
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0
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$self=$class->SUPER::new($pdf,$name|| 'Jx'.pdfkey());
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65
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0
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0
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$pdf->new_obj($self) unless($self->is_obj($pdf));
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66
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67
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0
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$self->{' apipdf'}=$pdf;
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0
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$self->read_gd($obj,@opts);
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71
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0
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return($self);
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72
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}
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73
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74
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=item $res = PDF::API3::Compat::API2::Resource::XObject::Image::GD->new_api $api, $obj [, $name]
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75
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76
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Returns a image object. This method is different from 'new' that
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77
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it needs an PDF::API3::Compat::API2-object rather than a Text::PDF::File-object.
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78
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79
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=cut
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80
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81
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sub new_api {
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82
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0
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0
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1
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my ($class,$api,@opts)=@_;
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83
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84
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0
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my $obj=$class->new($api->{pdf},@opts);
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85
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0
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$obj->{' api'}=$api;
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86
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87
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0
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return($obj);
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88
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}
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89
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90
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sub read_gd {
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91
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0
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0
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0
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my $self = shift @_;
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92
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0
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my $gd = shift @_;
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93
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0
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my %opts = @_;
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94
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95
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0
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my ($w,$h) = $gd->getBounds();
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96
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0
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my $c = $gd->colorsTotal();
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97
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98
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0
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$self->width($w);
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0
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$self->height($h);
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100
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101
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0
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$self->bpc(8);
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0
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$self->colorspace('DeviceRGB');
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103
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104
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0
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0
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0
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if(UNIVERSAL::can($gd,'jpeg') && ($c > 256) && !$opts{-lossless}) {
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0
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0
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105
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106
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0
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$self->filters('DCTDecode');
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107
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0
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$self->{' nofilt'}=1;
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108
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0
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$self->{' stream'}=$gd->jpeg(75);
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109
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110
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} elsif(UNIVERSAL::can($gd,'raw')) {
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112
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0
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$self->filters('FlateDecode');
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0
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$self->{' stream'}=$gd->raw;
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115
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} else {
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117
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0
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$self->filters('FlateDecode');
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118
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0
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for(my $y=0;$y<$h;$y++) {
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119
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0
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for(my $x=0;$x<$w;$x++) {
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120
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0
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my $index=$gd->getPixel($x,$y);
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121
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0
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my @rgb=$gd->rgb($index);
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122
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0
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$self->{' stream'}.=pack('CCC',@rgb);
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123
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}
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124
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}
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125
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126
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}
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127
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128
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0
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return($self);
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129
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}
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130
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131
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132
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133
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1;
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134
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135
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__END__
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