gamescope - 3.11.49-1 main

Gamescope wraps your games to give them scaling and fullscreen options. It
provides a Wayland compositor to your games, but gamescope runs under both
Wayland and X.org.
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Your game sees a virtual display at the resolution you specified. You see a
scaled view in a window or fullscreen. This is useful when either the game or
your system do not permit running the game at native window/screen sizes. You
can also use integer scaling to keep your pixels sharp and pixelated.