/*  * This file is part of the UCB release of Plan 9. It is subject to the license * terms in the LICENSE file found in the top-level directory of this * distribution and at http://akaros.cs.berkeley.edu/files/Plan9License. No * part of the UCB release of Plan 9, including this file, may be copied, * modified, propagated, or distributed except according to the terms contained * in the LICENSE file. */ #include <u.h>#include <libc.h>#include <draw.h> /* * Easy versions of the cache routines; may be substituted by fancier ones for other purposes */ static char	*lastname;Subfont	*lastsubfont; Subfont*lookupsubfont(Display *d, char *name){	if(d && strcmp(name, "*default*") == 0)		return d->defaultsubfont;	if(lastname && strcmp(name, lastname)==0)	if(d==lastsubfont->bits->display){		lastsubfont->ref++;		return lastsubfont;	}	return 0;} voidinstallsubfont(char *name, Subfont *subfont){	free(lastname);	lastname = strdup(name);	lastsubfont = subfont;	/* notice we don't free the old one; that's your business */} voiduninstallsubfont(Subfont *subfont){	if(subfont == lastsubfont){		lastname = 0;		lastsubfont = 0;	}}