LVGL V8 has gpu_fill_cb function?

I can’t find the gpu_fill_cb function in LVGL V8, is it not supported anymore?
Is there any way to replace it?

In v8 we have more sophisticated system for GPU support.
See Add custom GPU — LVGL documentation

I see a project, render lvgl to OpenGL ES, with the help of SDL.
rainlab-inc/lvgl-opengl: OpenGL ES 2.0 Implementation of LVGL (

If get rid of SDL, that’s better.