libXxf86dga provides the XFree86-DGA extension, which allows direct graphics access to a framebuffer-like region, and also allows relative mouse reporting, et al. It is mainly used by games and emulators for games. . This package contains the development headers for the library found in libxxf86dga1. Non-developers likely have little use for this package. . More information about X.Org can be found at: . This module can be found at git://anongit.freedesktop.org/git/xorg/lib/libXxf86dga