DisplayQueueCallbackData struct
#include <nCine/Graphics/RHI/GXM/GxmDevice.h>
What the display-queue callback needs to hand one finished buffer to the display controller.
sceGxm copies this into its own queue and passes it back to the callback on the queue thread, so it has to be a plain trivially-copyable structure - and public, because the callback is a free function.