games: added dolphin emulator

wiki/games/dolphin.md

@@ -0,0 +1,38 @@
+# Dolphin
+
+[Dolphin](https://dolphin-emu.org/) is a GameCube and Wii
+[emulator](./emulators.md).
+
+## Setup
+
+Dolphin can be installed on different systems, a list for this can be found on
+the [Dolphin website](https://dolphin-emu.org/download/).
+Additionally it can be installed using [Flatpak](../linux/flatpak.md) where the
+package is called `org.DolphinEmu.dolphin-emu`.
+
+## [Steam Deck](./steam.md#steam-deck) specific settings
+
+The following settings are especially useful when emulating games on the
+[Steam Deck](./steam.md#steam-deck) as pointed out by
+[nchristopher](https://github.com/nchristopher/steamdeck-emulation/blob/main/emulators/dolphin.md).
+But it is a good starting point for other systems aswell.
+It is important to emphasize that the system needs to meet the requirements to
+run Vulkan.
+Select the configuration and select the paths tab.
+There the directories for Wii and GameCube [ROMs](./emulators.md) can be added.
+In the audio tab select `Pulse` as your audio backend.
+In the interface tab select `Confirm to Stop` to avoid prompts when closing the
+game.
+Close the configuration and select the graphics menu.
+Set the backend to Vulkan.
+In the enhancements tab select `3x Native` as internal resolution, as it will
+upscale the image to 1080p.
+In the main tab check the `Render to Main Window` box.
+Close the graphics menu and open the controllers menu.
+For the first GameCube controller open the configuration, select
+`SDL/0/Microsoft X-Box 360 Pad 0` as type and change the buttons to your
+preference.
+Select emulate Wii Bluetooth adapter for Wii controllers.
+For the first Wii controller open the configuration, select
+`SDL/0/Microsoft X-Box 360 Pad 0` as type and change the buttons to your
+preference.

wiki/games/emulators.md

@@ -10,3 +10,4 @@ ROMs are a digital copy of a video game.
 ## List of Emulator software
 
 - [PPSSPP](./ppsspp.md) is made to emulate Playstation Portable games
+- [Dolphin](./dolphin.md) is made to emulate GameCube and Wii games