I have a game for iOS and Android that I now want to port to Ubuntu. I plan to distribute it with Ubuntu Software Center. Preferrably for free with an in-app-purchase.

My codebase is currently based on OpenGL ES2 and written in C++. I could rewrite to OpenGL, but having progammable shaders is a must. Fixed pipeline OpenGL will not suffice.

Is there a feature in place that lets you specify OpenGL requirements in the Ubuntu Software Center? I want to make sure that only Ubuntu users with compatible hardware will be able to download my game.

Any APIs I could use for getting a suitable OpenGL context, or am I expected to just use glx for this? Or is the use of GTK mandatory?