Gamescopeのソースを表示

[[Category:グラフィカルユーザーインターフェイス]]
[https://github.com/ValveSoftware/gamescope Gamescope] は、[[Steam Deck]]で使用される Valve が開発した[[Wayland#Compositors|マイクロコンポジタ]]です。その目的は、ゲームに特化したアイソレートされたコンポジタを提供し、以下のようなゲームに特化した機能をサポートすることです。

* 解像度のスプーフィング
* AMD FidelityFX™ Super ResolutionやNVIDIA Image Scalingを使ったアップスケーリング
* フレームレートの制限

マイクロコンポジタとして、既存のデスクトップ環境の上にネストされたセッションとして実行するよう設計されていますが、埋め込みコンポジタとしても使用することができます。

現在、[[Wayland]] クライアントのネイティブサポートはありません [https://github.com/ValveSoftware/gamescope/issues/543]。Wayland セッションでは、XWayland を使用します。

== インストール ==

Gamescope は、{{pkg|gamescope}} パッケージ（または {{aur|gamescope-git}} パッケージ）で[[インストール]]できます。さらに、メインラインビルドには含まれていない追加のパッチが含まれた {{aur|gamescope-plus}} もあります。

=== 要件 ===

* AMD：Mesa 20.3 以上
* Intel：Mesa 21.2 以上
* NVIDIA：プロプライエタリドライバー 515.43.04 以上、および {{ic|1=nvidia-drm.modeset=1}} [[カーネルパラメータ]]

== Usage ==

Gamescope offers many options, far to many to cover here. For a full list use the {{ic|gamescope --help}} command from a terminal.

=== From a desktop session ===

The following command will run supertuxkart using Gamescope and force a 1920x1080 resolution at 60 FPS

 $ gamescope -W 1920 -H 1080 -r 60 -- supertuxkart

=== From Steam ===

You can force Steam to run in Big Picture Mode using Gamescope by using the following command:

 $ gamescope -e -- steam -gamepadui
{{Note|The {{ic|-e}} flag tells Gamescope to enable Steam Integration.}}

You can also run games from Steam using Gamescope by adding the following to the games launch options

 gamescope -- %command%
{{Note|It is still required that you set flags such as resolution, FPS etc when launching from Steam otherwise Gamescope will launch at an incorrect resolution. You can do this in the same way as from a terminal, for example}}

 gamescope -W 1920 -H 1080 -r 60 -- %command%

=== From Wine ===
To run programs using Gamescope through [[Wine]], simply append ''wine'' followed by the executable.
 $ gamescope -W 1920 -H 1080 -r 60 -- wine supertuxkart
Almost all the popular Wine managers such as [[Lutris]], [[Bottles]], and [[PlayOnLinux]] have support for Gamescope. Using them is as simple as installing the desired Gamescope package and checking the ''Use Gamescope'' (or similar) option.

{{Note|Wine managers also tend to have a GUI interface to configure basic Gamescope options making them, in general, the easiest way to use Gamescope.}}

=== Through Flatpak ===

You can also use Gamescope from [[Flatpak]] versions of Wine managers and [[Steam]] in the same way as you would from a package install. It does however require that you first install Gamescope from Flathub with the following command:

 $ flatpak install gamescope

=== Upscaling ===

The {{ic|-U}} and {{ic|-Y}} flags can be used to upscale games using AMD FidelityFX™ Super Resolution (FSR) or NVIDIA Image Scaling (NIS) respectively. You can also use {{ic|-i}} for integer upscaling.

To upscale a 720p game to 1440p using FSR:

 $ gamescope -h 720 -H 1440 -U -- supertuxkart

To run a game at 1080p internal resolution but display it at 4K using NIS:

 $ gamescope -w 1920 -h 1080 -W 3840 -H 2160 -Y -- supertuxkart

=== HDR support ===

Gamescope is a requirement for HDR10 support when playing games, to make use of this feature you must launch your Gamescope session using the {{ic|--hdr-enabled}} flag.

{{Note|HDR support on Linux is still in its infancy and has many caveats. See [[HDR monitor support]] for details.}}

== Troubleshooting ==

=== Switching to fullscreen causes low performance ===

This is a known bug when using Gamescopes fullscreen hotkey {{ic|Meta+f}}, if you encounter this issue it can be worked around by using the fullscreen flag {{ic|-f}} when launching the game.

=== Setting Gamescopes priority ===

Another known cause of low performance and/or stuttering is not having Gamescopes priority set correctly, you can tell this is the case if you see errors mentioning {{ic|CAP_SYS_NICE}} in your terminal while Gamescope is running. The following command will fix this:

 # setcap 'CAP_SYS_NICE=eip' $(which gamescope)

== See Also ==
* [https://github.com/ValveSoftware/gamescope Gamescope Github Page]
* [https://github.com/sonic2kk/steamtinkerlaunch/wiki/GameScope Gamescope at Steamtinkerlaunch Github Wiki]