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mgba-emu / mgba

mGBA Game Boy Advance Emulator
https://mgba.io/
Mozilla Public License 2.0
5.38k stars 744 forks source link
emulator game-boy game-boy-advance game-boy-color game-boy-emulator gameboy gameboy-advance gameboy-advance-emulator gameboy-color-emulator gameboy-emulator gba mgba

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mGBA

mGBA is an emulator for running Game Boy Advance games. It aims to be faster and more accurate than many existing Game Boy Advance emulators, as well as adding features that other emulators lack. It also supports Game Boy and Game Boy Color games.

Up-to-date news and downloads can be found at mgba.io.

Build status Translation status

Features

Game Boy mappers

The following mappers are fully supported:

The following mappers are partially supported:

Planned features

Supported Platforms

Other Unix-like platforms, such as OpenBSD, are known to work as well, but are untested and not fully supported.

System requirements

Requirements are minimal. Any computer that can run Windows Vista or newer should be able to handle emulation. Support for OpenGL 1.1 or newer is also required, with OpenGL 3.2 or newer for shaders and advanced features.

Downloads

Downloads can be found on the official website, in the Downloads section. The source code can be found on GitHub.

Controls

Controls are configurable in the settings menu. Many game controllers should be automatically mapped by default. The default keyboard controls are as follows:

Compiling

Compiling requires using CMake 3.1 or newer. GCC, Clang, and Visual Studio 2019 are known to work for compiling mGBA.

Docker building

The recommended way to build for most platforms is to use Docker. Several Docker images are provided that contain the requisite toolchain and dependencies for building mGBA across several platforms.

Note: If you are on an older Windows system before Windows 10, you may need to configure your Docker to use VirtualBox shared folders to correctly map your current mgba checkout directory to the Docker image's working directory. (See issue #1985 for details.)

To use a Docker image to build mGBA, simply run the following command while in the root of an mGBA checkout:

docker run --rm -it -v ${PWD}:/home/mgba/src mgba/windows:w32

After starting the Docker container, it will produce a build-win32 directory with the build products. Replace mgba/windows:w32 with another Docker image for other platforms, which will produce a corresponding other directory. The following Docker images available on Docker Hub:

If you want to speed up the build process, consider adding the flag -e MAKEFLAGS=-jN to do a parallel build for mGBA with N number of CPU cores.

*nix building

To use CMake to build on a Unix-based system, the recommended commands are as follows:

mkdir build
cd build
cmake -DCMAKE_INSTALL_PREFIX:PATH=/usr ..
make
sudo make install

This will build and install mGBA into /usr/bin and /usr/lib. Dependencies that are installed will be automatically detected, and features that are disabled if the dependencies are not found will be shown after running the cmake command after warnings about being unable to find them.

If you are on macOS, the steps are a little different. Assuming you are using the homebrew package manager, the recommended commands to obtain the dependencies and build are:

brew install cmake ffmpeg libzip qt5 sdl2 libedit lua pkg-config
mkdir build
cd build
cmake -DCMAKE_PREFIX_PATH=`brew --prefix qt5` ..
make

Note that you should not do a make install on macOS, as it will not work properly.

Windows developer building

MSYS2

To build on Windows for development, using MSYS2 is recommended. Follow the installation steps found on their website. Make sure you're running the 32-bit version ("MSYS2 MinGW 32-bit") (or the 64-bit version "MSYS2 MinGW 64-bit" if you want to build for x86_64) and run this additional command (including the braces) to install the needed dependencies (please note that this involves downloading over 1100MiB of packages, so it will take a long time):

pacman -Sy --needed base-devel git ${MINGW_PACKAGE_PREFIX}-{cmake,ffmpeg,gcc,gdb,libelf,libepoxy,libzip,lua,pkgconf,qt5,SDL2,ntldd-git}

Check out the source code by running this command:

git clone https://github.com/mgba-emu/mgba.git

Then finally build it by running these commands:

mkdir -p mgba/build
cd mgba/build
cmake .. -G "MSYS Makefiles"
make -j$(nproc --ignore=1)

Please note that this build of mGBA for Windows is not suitable for distribution, due to the scattering of DLLs it needs to run, but is perfect for development. However, if distributing such a build is desired (e.g. for testing on machines that don't have the MSYS2 environment installed), running cpack -G ZIP will prepare a zip file with all of the necessary DLLs.

Visual Studio

To build using Visual Studio is a similarly complicated setup. To begin you will need to install vcpkg. After installing vcpkg you will need to install several additional packages:

vcpkg install ffmpeg[vpx,x264] libepoxy libpng libzip lua sdl2 sqlite3

Note that this installation won't support hardware accelerated video encoding on Nvidia hardware. If you care about this, you'll need to install CUDA beforehand, and then substitute ffmpeg[vpx,x264,nvcodec] into the previous command.

You will also need to install Qt. Unfortunately due to Qt being owned and run by an ailing company as opposed to a reasonable organization there is no longer an offline open source edition installer for the latest version, so you'll need to either fall back to an old version installer (which wants you to create an otherwise-useless account, but you can bypass temporarily setting an invalid proxy or otherwise disabling networking), use the online installer (which requires an account regardless), or use vcpkg to build it (slowly). None of these are great options. For the installer you'll want to install the applicable MSVC versions. Note that the offline installers do not support MSVC 2019. For vcpkg you'll want to install it as such, which will take quite a while, especially on quad core or less computers:

vcpkg install qt5-base qt5-multimedia

Next, open Visual Studio, select Clone Repository, and enter https://github.com/mgba-emu/mgba.git. When Visual Studio is done cloning, go to File > CMake and open the CMakeLists.txt file at the root of the checked out repository. From there, mGBA can be developed in Visual Studio similarly to other Visual Studio CMake projects.

Toolchain building

If you have devkitARM (for 3DS), devkitPPC (for Wii), devkitA64 (for Switch), or vitasdk (for PS Vita), you can use the following commands for building:

mkdir build
cd build
cmake -DCMAKE_TOOLCHAIN_FILE=../src/platform/3ds/CMakeToolchain.txt ..
make

Replace the -DCMAKE_TOOLCHAIN_FILE parameter for the following platforms:

Dependencies

mGBA has no hard dependencies, however, the following optional dependencies are required for specific features. The features will be disabled if the dependencies can't be found.

SQLite3, libpng, and zlib are included with the emulator, so they do not need to be externally compiled first.

Footnotes

[1] Currently missing features are

[2] Flash memory size detection does not work in some cases. These can be configured at runtime, but filing a bug is recommended if such a case is encountered.

[3] 10.9 is only needed for the Qt port. It may be possible to build or running the Qt port on 10.7 or older, but this is not officially supported. The SDL port is known to work on 10.5, and may work on older.

Copyright

mGBA is Copyright © 2013 – 2023 Jeffrey Pfau. It is distributed under the Mozilla Public License version 2.0. A copy of the license is available in the distributed LICENSE file.

mGBA contains the following third-party libraries:

If you are a game publisher and wish to license mGBA for commercial usage, please email licensing@mgba.io for more information.