Change hudswap to use a callback, and instead of passing a swap variable to 10 functions, where only 2 use it, use a global variable. Make a few scr functions static inline, too. Got a totally unexpected ~0.45fps speedup.

include/sbar.h

@@ -41,7 +41,7 @@ void Sbar_Init (void);
 void Sbar_Changed (void);
 // call whenever any of the client stats represented on the sbar changes
 
-void Sbar_Draw (int swap);
+void Sbar_Draw (void);
 // called every frame by screen
 
 void Sbar_IntermissionOverlay (void);