|Re: [hatari-devel] Suggested patch to fix the SDL GUI on KMS/DRM|
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On 10/31/20 10:59 AM, Jens Guenther wrote:
Why is the call necessary with KMS/DRM and Wayland? Does it have any
side effects there beside clearing the surface?
IMHO this is just a "workaround", but I'm also not an expert ... ;-)
Replacing "SDL_RenderClear" with "SDL_RenderDrawPoint" or similar
functions also fixes it for Wayland ...
I guess it's related to how SDL2 and the HW
accelerated 3D driver behind it work. Any kind
of SDL draw command could "force" things to be
resolved before being presented...
I assume the problem this solves doesn't happen
with SDL1 / SW rendering?