[hatari-devel] screen no more "refreshed" when Hatari is paused with SDL2 ?

[Nicolas Pomarède <npomarede@xxxxxxxxxxxx>]

Hi

I noticed that with SDL2 the Hatari window's content is not refreshed 
anymore when Hatari is paused (pressing alt+p or F12 for example)

Under linux, if I pause and I move another window in front of Hatari (to 
overlap Hatari's window), then the content behind this window is not 
repainted when I put Hatari back to the top (Hatari's window will be all 
white for example)

In the case where Hatari is paused, screen.c functions are not called, 
so screen content will not be redrawn regularly, but at least with SDL1, 
the content of the paused windows was kept and you could for example use 
"kruler" to count pixels (with SDL2, this leaves an ugly trail over the 
screen)

Do other see this under Linux ? Maybe it's part of SDL2 to not refresh 
in this case for better rendering performance, but does someone know if 
there's an SDL flag to preserve the window's content in such cases ?

Nicolas