ref: 8dd003eb04aacf13c4a3a3123269a980c03504f9
dir: /sys/src/libdraw/subfontcache.c/
#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; static 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; } void installsubfont(char *name, Subfont *subfont) { free(lastname); lastname = strdup(name); lastsubfont = subfont; /* notice we don't free the old one; that's your business */ } void uninstallsubfont(Subfont *subfont) { if(subfont == lastsubfont){ free(lastname); lastname = 0; lastsubfont = 0; } }