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# RetroGTK
The GTK Libretro frontend framework.
[Libretro](https://www.libretro.com/) is a plugin format design to implement
video game console emulators, video games and similar multimedia software. Such
plugins are called Libretro cores.
RetroGTK is a framework easing the use of Libretro cores in conjunction with
[GTK](https://www.gtk.org/).
It encourages the cores to be installed in a well defined centralized place —
namely the `libretro` subdirectory of your `lib` directory — and it recommends
them to come with [Libretro core descriptors](https://gnome.pages.gitlab.gnome.org/retro-gtk/doc/master/libretro-core-descriptor.html).
## Example
Writing a Libretro application with RetroGTK can be as simple as the following
Vala code:
```vala
int main (string[] args) {
Gtk.init (ref args);
var core = new Retro.Core ("/path/to/your/core_libretro.so");
core.set_medias ({ "file:///uri/of/you/game.file" });
try {
core.boot();
}
catch (Error e) {
critical (e.message);
return 1;
}
var view = new Retro.CoreView ();
view.set_as_default_controller (core);
view.set_core (core);
view.show ();
var loop = new Retro.MainLoop (core);
loop.start ();
var win = new Gtk.Window ();
win.destroy.connect (Gtk.main_quit);
win.add (view);
win.present ();
Gtk.main ();
return 0;
}
```
## Dependencies
RetroGTK depends on the following libraries at compile time and at run time:
- gobject-2.0
- glib-2.0
- gio-2.0
- gmodule-2.0
- gtk+-3.0
- cairo
- libpulse
- libpulse-simple
## Compiling
To configure the compilation, do:
`meson build`
You can specify the installation prefix by doing:
`meson build --prefix /my/prefix`
Then compile:
`ninja -C build`
## Installing
`ninja -C build install`
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