Allegro is a game programming library for C/C++ developers distributed freely. It provides many functions for graphics, sounds, player input (keyboard, mouse and joystick) and timers. It also provides fixed and floating point mathematical functions, 3d functions, file management functions, compressed datafile and a GUI.

This news is a bit older, but was not covered, as we have been a bit lazy with Dreamcast homebrew recently 🙂

http://www.dreamcast.es/news.php?readmore=284