#!/usr/bin/perl
use warnings;
use strict;
use GD;

my @tiles = ();
my $file = shift || '2uni2.jpg';
my $tempname = $file;
$tempname =~ s/^(.+)(\.\w+)$/$1/;
print "$tempname\n";

#set tile size 
my $x = 100;
my $y = 100;

my $image = GD::Image->newFromJpeg($file,0);
my ($width,$height) = $image->getBounds();
print "width->$width   height->$height\n";

my $rows = int($height/$y +1) - 1; #make it 0 based 
my $cols = int($width/$x + 1) - 1;
print "rows->$rows  cols->$cols\n";

foreach my $row(0..$rows){
    foreach my $col(0..$cols){
      my $imageout =  new GD::Image($x,$y);
      #$image->copy($sourceImage,$dstX,$dstY, 
       #                          $srcX,$srcY,$width,$height) 
      $imageout->copy($image,0,0,($col*$y),($row*$x),$x,$y);
      my $tilename = $tempname .'-'.$row.'-'.$col.'.jpg';
      push(@tiles,$tilename);
      open(OUT, '>', $tilename) or warn $!;
      print OUT  $imageout->jpeg;
      close OUT;
    }
}