[gnome-games/wip/save-aspect-ratio] retro: Save aspect ratio of the screenshots

[Adrien Plazas <aplazas src gnome org>]

commit 19dbc5629ecc18a8619259a2630ea04d4e9848a1
Author: Adrien Plazas <kekun plazas laposte net>
Date:   Fri Jan 27 14:31:42 2017 +0100

    retro: Save aspect ratio of the screenshots
    
    This is needed to later be able to display the screenshot with the
    correct aspect ratio without resizing it and hence loosing details.

 src/retro/retro-runner.vala |    4 +++-
 1 files changed, 3 insertions(+), 1 deletions(-)
---
diff --git a/src/retro/retro-runner.vala b/src/retro/retro-runner.vala
index 7690d78..235b992 100644
--- a/src/retro/retro-runner.vala
+++ b/src/retro/retro-runner.vala
@@ -484,7 +484,9 @@ public class Games.RetroRunner : Object, Runner {
 
                var screenshot_path = get_screenshot_path ();
 
-               pixbuf.save (screenshot_path, "png");
+               var x_dpi = pixbuf.get_option ("x-dpi");
+               var y_dpi = pixbuf.get_option ("y-dpi");
+               pixbuf.save (screenshot_path, "png", "x-dpi", x_dpi, "y-dpi", y_dpi);
        }
 
        private void load_screenshot () throws Error {