void fbcon_mfb_clear_margins(struct vc_data *conp, struct display *p,
int bottom_only)
{
u8 *dest;
int height, bottom;
int inverse = conp ? attr_reverse(p,conp->vc_video_erase_char) : 0;
/* XXX Need to handle right margin? */
height = p->var.yres - conp->vc_rows * fontheight(p);
if (!height)
return;
bottom = conp->vc_rows + p->yscroll;
if (bottom >= p->vrows)
bottom -= p->vrows;
dest = p->screen_base + bottom * fontheight(p) * p->next_line;
if (inverse)
mymemset(dest, height * p->next_line);
else
mymemclear(dest, height * p->next_line);
}
void fbcon_mfb_clear(struct vc_data *conp, struct display *p, int sy, int sx,
int height, int width)
{
u8 *dest;
u_int rows;
int inverse = conp ? attr_reverse(p,conp->vc_video_erase_char) : 0;
dest = p->screen_base+sy*fontheight(p)*p->next_line+sx;
if (sx == 0 && width == p->next_line) {
if (inverse)
mymemset(dest, height*fontheight(p)*width);
else
mymemclear(dest, height*fontheight(p)*width);
} else
for (rows = height*fontheight(p); rows--; dest += p->next_line)
if (inverse)
mymemset(dest, width);
else
mymemclear_small(dest, width);
}
void fbcon_ilbm_clear(struct vc_data *conp, struct display *p, int sy, int sx,
int height, int width)
{
u8 *dest;
u_int i, rows;
int bg, bg0;
dest = p->screen_base+sy*fontheight(p)*p->next_line+sx;
bg0 = attr_bgcol_ec(p,conp);
for (rows = height*fontheight(p); rows--;) {
bg = bg0;
for (i = p->var.bits_per_pixel; i--; dest += p->next_plane) {
if (bg & 1)
mymemset(dest, width);
else
mymemclear(dest, width);
bg >>= 1;
}
}
}
