Still a wrapper, and still missing some features, but at least, you don’t
have to dig through the source of a game to find it: 
http://olofson.net/mixed.html
"glSDL is an implementation of the SDL API on top of OpenGL.
This version is a proof-of-concept hack, and is implemented
as a "wrapper" around SDL. However, the final version will
be a real rendering backend, which will make it possible for
most SDL applications to use hardware acceleration for all
blits to the screen."
//David Olofson — Programmer, Reologica Instruments AB
.- M A I A -------------------------------------------------.
| Multimedia Application Integration Architecture |
| A Free/Open Source Plugin API for Professional Multimedia |
----------------------------> http://www.linuxdj.com/maia -' .- David Olofson -------------------------------------------. | Audio Hacker - Open Source Advocate - Singer - Songwriter |-------------------------------------> http://olofson.net -’