Question about stereoscopic 3D code

[paraemuladores]

Hi there. I have understood that Dolphin's code is free (I remember that ZEROx shared a part of Dolphin's source code once to help me fix a problem with Metroid Prime 3), so I have a question. I've been noticing that a lot of emulators and graphic engines are starting to add stereoscopic 3d, in both DirectX and OpenGL. Not the lame 3d like the one that Thief has, that requires Nvidia 3d; instead, full native stereoscopic 3d, like the one Dolphin has. I have a friend who is developing a game, so I thought it would be amazing if he could add full native stereoscopic 3d to the game features, just like the one Dolphin has. The question would be: Is there some sort of, how to put this, free generic stereoscopic 3d code, that can be downloaded freely and adapted to anything?
Thanks in advance!