#include <u.h>#include <libc.h>#include <draw.h> voidfreesubfont(Subfont *f){	if(f == 0)		return;	f->ref--;	if(f->ref > 0)		return;	uninstallsubfont(f);	free(f->info);	/* note: f->info must have been malloc'ed! */	freeimage(f->bits);	free(f);}