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#!/usr/bin/perl
# A simple utility to view a picture from the command line
#
# The first option should be the file name to show
use strict;
use Graphics::Framebuffer;
use Time::HiRes qw(sleep time);
# use Data::Dumper::Simple;$Data::Dumper::Sortkeys=1;
$SIG{'QUIT'} = sub { exec('reset'); };
$SIG{'INT'}  = sub { exec('reset'); };
my $args = join('', @ARGV);
my $file = 0;
$file = 1 if ($args =~ /file/i);
my $dev = 0;
if ($args =~ /(\d+)/) {
    ($dev) = $1;
}
my $f = Graphics::Framebuffer->new(
    'FB_DEVICE'   => "/dev/fb$dev",
    'SPLASH'      => 0,
    'SHOW_ERRORS' => 1,
    'FILE_MODE'   => $file
);
system('clear');
$f->cls('OFF');
# This centers and shows the picture by proportionally scaling the height and width
my %p = (
    'width'  => $f->{'XRES'},
    'height' => $f->{'YRES'},
    'file'   => $ARGV[-1]
);
# $p{'noscale'} = 1 if ($ARGV[0] =~ /\.gif$/i);
my $image = $f->load_image(\%p);
# warn ref($image),"\n\n",Dumper($image->[0]->{'tags'}),"\n\n";exit;
if (ref($image) eq 'ARRAY') {
    while (1) {
        foreach my $frame (0 .. (scalar(@{$image}) - 1)) {
            my $begin = time;
            $f->blit_write($image->[$frame]);
            my $delay = ($image->[$frame]->{'tags'}->{'gif_delay'} / 100) - (time - $begin);
            sleep $delay if ($delay > 0);
        } ## end foreach my $frame (0 .. (scalar...))
    } ## end while (1)
} else {
    $f->blit_write($image);
}
sleep 3;
$f->cls('ON');
HideShow 34 lines of Pod
=head1 NAME
Picture View
=head1 DESCRIPTION
Single image (or animation) viewer
=head1 SYNOPISIS
 perl viewpic.pl [file] [device number] [full] "path to image"
=head1 OPTIONS
Like the name implies, these are all optional, and can be entered in any order, EXCEPT for the file path.
=over 2
=item C<device Number> (just the number)
A number from 0 - 31 indicating which framebuffer device to render to
=item C<file>
Tells it to render in file handle mode instead of memory mapped string mode.
=item C<full>
Tells it to scale (proportionally) all images (and animations) to full screen.
=back
=cut