void font_close(RrFont *f);
int font_measure_string(RrFont *f, char *str, int shadow, int offset);
int font_height(RrFont *f, int shadow, int offset);
void font_close(RrFont *f);
int font_measure_string(RrFont *f, char *str, int shadow, int offset);
int font_height(RrFont *f, int shadow, int offset);