Graphic lib for olinuxino

[rgiovoni]

Hello.
I have to start to develop an application with user interface on
4.3 lcd touch display.
I have already connected my olinuxino a20 lime board to an lcd-OliNuxino-4.3TS display and all
works fine.
Now, my necessity is to use a sort of graphic library.
Someone can recommend one to me?

Thanks in advance for help

Robert