1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
|
package Imager::File::TIFF;
use 5.006;
use strict;
use Imager;
BEGIN {
our $VERSION = "1.001";
require XSLoader;
XSLoader::load('Imager::File::TIFF', $VERSION);
}
Imager->register_reader
(
type=>'tiff',
single =>
sub {
my ($im, $io, %hsh) = @_;
my $allow_incomplete = $hsh{allow_incomplete};
defined $allow_incomplete or $allow_incomplete = 0;
my $page = $hsh{page};
defined $page or $page = 0;
$im->{IMG} = i_readtiff_wiol($io, $allow_incomplete, $page);
unless ($im->{IMG}) {
$im->_set_error(Imager->_error_as_msg);
return;
}
return $im;
},
multiple =>
sub {
my ($io, %hsh) = @_;
my @imgs = i_readtiff_multi_wiol($io);
unless (@imgs) {
Imager->_set_error(Imager->_error_as_msg);
return;
}
return map bless({ IMG => $_, ERRSTR => undef }, "Imager"), @imgs;
},
);
Imager->register_writer
(
type=>'tiff',
single =>
sub {
my ($im, $io, %hsh) = @_;
$im->_set_opts(\%hsh, "i_", $im);
$im->_set_opts(\%hsh, "tiff_", $im);
$im->_set_opts(\%hsh, "exif_", $im);
if (defined $hsh{class} && $hsh{class} eq "fax") {
my $fax_fine = $hsh{fax_fine};
defined $fax_fine or $fax_fine = 1;
if (!i_writetiff_wiol_faxable($im->{IMG}, $io, $fax_fine)) {
$im->{ERRSTR} = Imager->_error_as_msg();
return undef;
}
}
else {
unless (i_writetiff_wiol($im->{IMG}, $io)) {
$im->_set_error(Imager->_error_as_msg);
return;
}
}
return $im;
},
multiple =>
sub {
my ($class, $io, $opts, @ims) = @_;
Imager->_set_opts($opts, "tiff_", @ims);
Imager->_set_opts($opts, "exif_", @ims);
my @work = map $_->{IMG}, @ims;
my $tiff_class = $opts->{class};
defined $tiff_class or $tiff_class = "";
my $result;
if ($tiff_class eq "fax") {
my $fax_fine = $opts->{fax_fine};
defined $fax_fine or $fax_fine = 1;
$result = i_writetiff_multi_wiol_faxable($io, $fax_fine, @work);
}
else {
$result = i_writetiff_multi_wiol($io, @work);
}
unless ($result) {
$class->_set_error($class->_error_as_msg);
return;
}
return 1;
},
);
__END__
=head1 NAME
Imager::File::TIFF - read and write TIFF files
=head1 SYNOPSIS
use Imager;
my $img = Imager->new;
$img->read(file=>"foo.tiff")
or die $img->errstr;
$img->write(file => "foo.tif")
or die $img->errstr;
my @codecs = Imager::File::TIFF->codecs;
=head1 DESCRIPTION
Imager's TIFF support is documented in L<Imager::Files>.
=head1 CLASS METHODS
=over
=item Imager::File::TIFF->codecs
Returns a list of hashrefs, each hash contains:
=over
=item *
C<code> - the numeric TIFF defined identifier for this compression
codec.
=item *
C<name> - the short name traditionally used by Imager::File::TIFF for
this compression codec. This may be an empty string if
Imager::File::TIFF doesn't have a name for this codec.
=item *
C<description> - the C<libtiff> defined name for this codec. You can
now supply this name in the C<tiff_compression> tag to select this
compression.
=back
=item Imager::File::TIFF->builddate
The release date of the version of C<libtiff> Imager::File::TIFF was
built with. eg. C<20230609>.
=item Imager::File::TIFF->buildversion
The version number of C<libtiff> Imager::File::TIFF was built with.
eg. C<4.5.0>. Only available from C<libtiff> 4.5.0.
=item Imager::File::TIFF->libversion
The version number of C<libtiff> Imager::File::TIFF is running with.
This should be the same as C<buildversion> at build time, but an
upgrade to libtiff may result in C<libversion> changing without
C<buildversion> changing.
=back
=head1 AUTHOR
Tony Cook <tonyc@cpan.org>
=head1 SEE ALSO
Imager, Imager::Files.
http://www.simplesystems.org/libtiff/
=cut
|
