RMG-K (Rosalie's Mupen GUI - Kaillera)

Rosalie's Mupen GUI is a free and open-source mupen64plus front-end written in C++.

This fork is focused around netplay with the Kaillera protocol.

The Kaillera Part:

N02 Client

Frame Delay (Previously Ping Spoofing)

• This allows the users to set their own frame delay
• Auto, Server will assign frame delay based on ping.
• 1 - 9 frames = sets your frame delay by spoofing your ping toward the middle of the frame window (every 16ms)
• Notifies lobby and game room of frame delay spoofing

Drop Actually Works!

• Clicking Drop will stop emulation (if player 1 clicks drop, it will drop for all others in the room)
• After all players drop, the room owner is able to restart emulation for everyone

In Game Chat

• On-Screen Chat Display: No more needing to alt-tab to see what your opponent is saying in chat. This can be customized or disabled in Settings -> OSD
• Press Enter to Chat: You can now chat while in-game without switching windows! This can be rebound in Hotkeys->System if you'd like to use a different key. Press ESC to cancel

Replays system

• Playback overhaul: Reworked the krec playback screen, fixing numerous bugs and making it easier to use. You can now see the players from the replay list!

  

Static Netplay Settings

FOR NOW, the following settings are hard coded when a user starts a netplay session:

Setting	Local Play	Kaillera Netplay
RandomizeInterrupt	true (random)	false (deterministic)
CPU_Emulator	User's choice (default 2)	2 (dynarec)
CountPerOp	ROM database / overlay	0 (use ROM database)
CountPerOpDenomPot	0	0
SiDmaDuration	-1	-1
DisableExtraMem	User's choice	false (8MB enabled)
DisableSaveFileLoading	false (loads saves)	true (fresh saves)
RSP_Plugin	User's choice	Hacktarux/Azimer HLE RSP Plugin

Input

Raphnet N64 Adapter support

• Yes, your N64 controller works :D

GCC Adapter Support

• OEM Nintendo Gamecube adapter and Input Integrity Lossless adapter tested and working

RMG-Input (pronounced Nrage)

RMG-Input was changed so it now uses independent per-axis scaling similar to the Ownasaurus USBtoN64v2 adapter and N-Rage input plugin:

• Should support most xinput devices
• Configurable range slider (0-100%) with default 66% to match N-Rage
• Linear scale: 100% = 127 (protocol max)
• Per-axis deadzone handling instead of circular deadzone

Building

Linux

• Portable Debian/Ubuntu

  sudo apt-get -y install cmake libusb-1.0-0-dev libhidapi-dev libsamplerate0-dev libspeex-dev libminizip-dev libsdl3-dev libfreetype6-dev libgl1-mesa-dev libglu1-mesa-dev pkg-config zlib1g-dev binutils-dev libspeexdsp-dev qt6-base-dev qt6-websockets-dev libqt6svg6-dev libvulkan-dev build-essential nasm git zip ninja-build
  ./Source/Script/Build.sh Release

• Portable Fedora

  sudo dnf install libusb1-devel hidapi-devel libsamplerate-devel minizip-compat-devel SDL3-devel freetype-devel mesa-libGL-devel mesa-libGLU-devel pkgconfig zlib-ng-devel binutils-devel speexdsp-devel qt6-qtbase-devel qt6-qtsvg-devel qt6-qtwebsockets-devel vulkan-devel gcc-c++ nasm git ninja-build
  ./Source/Script/Build.sh Release

• Portable Arch Linux

  sudo pacman -S --needed make cmake gcc libusb hidapi freetype2 libpng qt6 sdl3 libsamplerate nasm minizip pkgconf vulkan-headers git
  ./Source/Script/Build.sh Release

• Portable OpenSUSE Tumbleweed

  sudo zypper install SDL3-devel cmake freetype2-devel gcc gcc-c++ libusb-1_0-devel libhidapi-devel libhidapi-hidraw0 libpng16-devel libsamplerate-devel make nasm ninja pkgconf-pkg-config speex-devel vulkan-devel zlib-devel qt6-tools-devel qt6-opengl-devel qt6-widgets-devel qt6-svg-devel minizip-devel git
  ./Source/Script/Build.sh Release

When it's done building, executables can be found in Bin/Release

• Installation/Packaging

export src_dir="$(pwd)"
export build_dir="$(pwd)/build"
mkdir -p "$build_dir"
cmake -S "$src_dir" -B "$build_dir" -DCMAKE_BUILD_TYPE="Release" -DPORTABLE_INSTALL="OFF" -DCMAKE_INSTALL_PREFIX="/usr" -G "Ninja"
cmake --build "$build_dir"
cmake --install "$build_dir" --prefix="/usr"

Windows

• Download & Install MSYS2 (UCRT64)

pacman -S --needed make mingw-w64-ucrt-x86_64-cmake mingw-w64-ucrt-x86_64-gcc mingw-w64-ucrt-x86_64-libusb mingw-w64-ucrt-x86_64-hidapi mingw-w64-ucrt-x86_64-freetype mingw-w64-ucrt-x86_64-libpng mingw-w64-ucrt-x86_64-qt6 mingw-w64-ucrt-x86_64-sdl3 mingw-w64-ucrt-x86_64-speexdsp mingw-w64-ucrt-x86_64-libsamplerate mingw-w64-ucrt-x86_64-libusb mingw-w64-ucrt-x86_64-nasm mingw-w64-ucrt-x86_64-minizip mingw-w64-ucrt-x86_64-vulkan-headers git
./Source/Script/Build.sh Release

When it's done building, executables can be found in Bin/Release

License

Rosalie's Mupen GUI is licensed under the GNU General Public License v3.0.