To achieve you have to do:
1.Get the screen resolution using PHP
2.Customise the output of the WP image gallery shortcode or overide it by adding your gallery shortcode
Or
Search WordPress.org plugin directory.
To achieve you have to do:
1.Get the screen resolution using PHP
2.Customise the output of the WP image gallery shortcode or overide it by adding your gallery shortcode
Or
Search WordPress.org plugin directory.