Re: [Qemu-devel] Re: Qemu 2D performance plunges below acceptable levels

[Paul Brook]

>      SDL_BlitSurface(guest_screen, &rec, real_screen, &rec);
> -    SDL_UpdateRect(real_screen, x, y, w, h);
> +    SDL_UpdateRects(real_screen, 1, &rec);

Have you actually tried this? I'd be amazed and dismayed if it made any 
difference. I can believe that SDL_UpdateRects is better that *multiple* 
calls to SDL_UpdateRect. However I see absolutely no justification for this 
change.

Paul