#include <u.h>#include <libc.h>#include <draw.h>#include <memdraw.h> Memsubfont*allocmemsubfont(char *name, int n, int height, int ascent, Fontchar *info, Memimage *i){	Memsubfont *f; 	f = malloc(sizeof(Memsubfont));	if(f == 0)		return 0;	f->n = n;	f->height = height;	f->ascent = ascent;	f->info = info;	f->bits = i;	if(name)		f->name = strdup(name);	else		f->name = 0;	return f;} voidfreememsubfont(Memsubfont *f){	if(f == 0)		return;	free(f->info);	/* note: f->info must have been malloc'ed! */	freememimage(f->bits);	free(f);}