diff options
| -rw-r--r-- | sys/dev/vt/vt_core.c | 29 |
1 files changed, 17 insertions, 12 deletions
diff --git a/sys/dev/vt/vt_core.c b/sys/dev/vt/vt_core.c index 39b9265..900dafd 100644 --- a/sys/dev/vt/vt_core.c +++ b/sys/dev/vt/vt_core.c @@ -1171,22 +1171,27 @@ static int vt_set_border(struct vt_window *vw, struct vt_font *vf, term_color_t c) { struct vt_device *vd = vw->vw_device; - int l, r, t, b, w, h; + int x, y, off_x, off_y; if (vd->vd_driver->vd_drawrect == NULL) return (ENOTSUP); - w = vd->vd_width - 1; - h = vd->vd_height - 1; - l = vd->vd_offset.tp_col - 1; - r = w - l; - t = vd->vd_offset.tp_row - 1; - b = h - t; - - vd->vd_driver->vd_drawrect(vd, 0, 0, w, t, 1, c); /* Top bar. */ - vd->vd_driver->vd_drawrect(vd, 0, t, l, b, 1, c); /* Left bar. */ - vd->vd_driver->vd_drawrect(vd, r, t, w, b, 1, c); /* Right bar. */ - vd->vd_driver->vd_drawrect(vd, 0, b, w, h, 1, c); /* Bottom bar. */ + x = vd->vd_width - 1; + y = vd->vd_height - 1; + off_x = vd->vd_offset.tp_col; + off_y = vd->vd_offset.tp_row; + + /* Top bar. */ + if (off_y > 0) + vd->vd_driver->vd_drawrect(vd, 0, 0, x, off_y - 1, 1, c); + /* Left bar. */ + if (off_x > 0) + vd->vd_driver->vd_drawrect(vd, 0, off_y, off_x - 1, y - off_y, + 1, c); + /* Right bar. May be 1 pixel wider than necessary due to rounding. */ + vd->vd_driver->vd_drawrect(vd, x - off_x, off_y, x, y - off_y, 1, c); + /* Bottom bar. May be 1 mixel taller than necessary due to rounding. */ + vd->vd_driver->vd_drawrect(vd, 0, y - off_y, x, y, 1, c); return (0); } |
