For latest RGA lib, please see
https://github.com/rockchip-linux/linux-rga
For latest RGA Sample, please see
https://github.com/rockchip-linux/linux-rga/tree/im2d
This project is only for toybrick rk3399pro, it is only for RGA2 with Kernel-4.19 , not for RK35 series RK chips with RGA3 and multiple RGA cores. Please use the official RGA library api to adapt the whole series of RK chips.