+- PINE64 (https://forum.pine64.org)
+-- Forum: PinePhone (https://forum.pine64.org/forumdisplay.php?fid=120)
+--- Forum: General Discussion on PinePhone (https://forum.pine64.org/forumdisplay.php?fid=127)
+--- Thread: 60fps display updates possible without GPU? (/showthread.php?tid=20101)
60fps display updates possible without GPU? - WhiteHexagon - 12-02-2025
I finally got the touch screen working! still some spurious events I need to track down still, including an interrupt flood. But the first thing I added was finger paint mode, to check touch locations, and a button to clear the screen
All good fun, but my 'clear screen' functionality is super slow. I'm guessing at .25s, slow enough to see the progress. This is using a framebuffer approach i.e. no GPU, and a memset to do the clear. But I also tried a direct arm assembly loop, and looks the same.
I dont have enough experience with the PinePhone to know if this is to be expected? or an anomaly in my approach. I was expecting to be able to easily do 60fps with plenty of spare cycles to run my apps.