package Image::Caption;
require 5.005_62;
use strict;
use warnings;
use Carp;
require Exporter;
require DynaLoader;
use AutoLoader;
our @ISA = qw(Exporter DynaLoader);
# Items to export into callers namespace by default. Note: do not export
# names by default without a very good reason. Use EXPORT_OK instead.
# Do not simply export all your public functions/methods/constants.
# This allows declaration use Image::Caption ':all';
# If you do not need this, moving things directly into @EXPORT or @EXPORT_OK
# will save memory.
our %EXPORT_TAGS = ( 'all' => [ qw(
) ] );
our @EXPORT_OK = ( @{ $EXPORT_TAGS{'all'} } );
our @EXPORT = qw(
add_caption
);
our $VERSION = '0.01';
sub AUTOLOAD {
# This AUTOLOAD is used to 'autoload' constants from the constant()
# XS function. If a constant is not found then control is passed
# to the AUTOLOAD in AutoLoader.
my $constname;
our $AUTOLOAD;
($constname = $AUTOLOAD) =~ s/.*:://;
croak "& not defined" if $constname eq 'constant';
my $val = constant($constname, @_ ? $_[0] : 0);
if ($! != 0) {
if ($! =~ /Invalid/ || $!{EINVAL}) {
$AutoLoader::AUTOLOAD = $AUTOLOAD;
goto &AutoLoader::AUTOLOAD;
}
else {
croak "Your vendor has not defined Image::Caption macro $constname";
}
}
{
no strict 'refs';
# Fixed between 5.005_53 and 5.005_61
if ($] >= 5.00561) {
*$AUTOLOAD = sub () { $val };
}
else {
*$AUTOLOAD = sub { $val };
}
}
goto &$AUTOLOAD;
}
bootstrap Image::Caption $VERSION;
# Preloaded methods go here.
# Autoload methods go after =cut, and are processed by the autosplit program.
1;
__END__
# Below is stub documentation for your module. You better edit it!
=head1 NAME
Image::Caption - Perl module for captioning RGB data
=head1 SYNOPSIS
use Image::Caption;
open(RGB, "<image.rgb");
my $fr = join("", <RGB>);
close(RGB);
add_caption($fr, 320, 240,
-font => "ncenB24.bdf",
-scale => 0.34,
-blur => 3,
-pos => "-10 -10",
-right,
-text => "%a, %d-%b-%Y %l:%M:%S %p %Z",
);
open(PPM, ">image.ppm");
print PPM "P6\n"; # PPM
print PPM "320 240\n"; # dimensions
print PPM "255\n"; # colour depth
print PPM $fr;
close(PPM);
=head1 DESCRIPTION
This module is used to add caption text to raw RGB data such as that found in
PPM files or grabbed from a frame grabber card using Video4linux.
This code was written in C by Jamie Zawinski <jwz@jwz.org> as found at
http://www.jwz.org/ppmcaption/ and ported to perl (perlxs) by myself.
=head1 AUTHOR
Iain Wade, <iwade@optusnet.com.au>
=head1 SEE ALSO
perl(1).
=cut