void (*text_metrics) (struct outp_driver *, const struct outp_text *,
int *width, int *height);
void (*text_draw) (struct outp_driver *, const struct outp_text *);
void (*text_metrics) (struct outp_driver *, const struct outp_text *,
int *width, int *height);
void (*text_draw) (struct outp_driver *, const struct outp_text *);