Description
I am now using a screen sized img
as background(1024×600 equal to the display) ，and set its pos to (0,0).of course there are few object here as childrens to it.everey frame some of those chindrens update like chaging img_src or getting rotated.the lvgl process is like this : fill_normal(white) ＞map_normal(background)＞map_normal(obj) in fact fill_normal is not needed and cost extra cpu because the background img could cover the dirty area ，so how to optimize？ appreciate……
What MCU/[Processor]
cortex m7
What LVGL version are you using?
v8.2
What do you want to achieve?
avoid useless fill action