This library is designed to make it easy to write games that run on many different platforms using the various native high-performance media interfaces, (for video, audio, etc) and presenting a single source-code level API to your application. This is a fairly low level API, but using this, completely portable applications can be written with a great deal of flexibility.
An introduction to SDL can be found online at: http://www.libsdl.org/intro.php
Tutorials on a variety of topics can be found online at: http://www.libsdl.org/tutorials.php
Documentation in Wiki form can be found online at: http://www.libsdl.org/cgi/docwiki.cgi/
Enjoy!
Sam Lantinga <slouken@libsdl.org>