static void
on_seat_removed (GDBusConnection *connection,
const gchar *sender_name,
const gchar *object_path,
const gchar *interface_name,
const gchar *signal_name,
GVariant *parameters,
gpointer user_data)
{
const char *seat;
g_variant_get (parameters, "(&s&o)", &seat, NULL);
delete_display (GDM_LOCAL_DISPLAY_FACTORY (user_data), seat);
}
int PicBuf_to_UIS(const GEN_PAR * pg, const OUT_PAR * po)
{
int byte_c, xoff, yoff;
unsigned long row_c, x1, x2, rw, rh, bpp, zero = 0, two = 2;
const RowBuf *row;
const PicBuf *pb;
float x0f, y0f, x1f, y1f, w, h;
int c_old, c_new, i;
unsigned vd_id, wd_id;
char *target = "sys$workstation";
static float intens[2] = { 1.0, 0.0 };
static unsigned atb = 1;
struct dsc$descriptor_s s_desc;
if (pg == NULL || po == NULL)
return ERROR;
pb = po->picbuf;
if (pb == NULL)
return ERROR;
if (pb->depth > 1) {
Eprintf
("\nUIS preview does not support colors yet -- sorry\n");
return ERROR;
}
if (!pg->quiet) {
Eprintf("\nUIS preview follows\n");
Eprintf("Press <return> to end\n");
}
xoff = po->xoff * po->dpi_x / 25.4;
yoff = po->yoff * po->dpi_y / 25.4;
if ((!pg->quiet) &&
(((pb->nb << 3) + xoff > 1024) || (pb->nr + yoff > 1024))) {
Eprintf("\n\007WARNING: Picture won't fit!\n");
Eprintf("Current range: (%d..%d) x (%d..%d) pels\n",
xoff, (pb->nb << 3) + xoff, yoff, pb->nr + yoff);
Eprintf("Continue anyway (y/n)?: ");
if (toupper(getchar()) != 'Y')
return;
}
x0f = y0f = 0.0; /* No offsets yet */
x1f = (float) (pb->nb << 3);
y1f = (float) pb->nr;
w = (float) po->width / 10.0; /* VAX needs cm, not mm */
h = (float) po->height / 10.0;
vd_id = uis$create_display(&x0f, &y0f, &x1f, &y1f, &w, &h);
uis$disable_display_list(&vd_id);
uis$set_intensities(&vd_id, &zero, &two, intens);
s_desc.dsc$w_length = strlen(target);
s_desc.dsc$a_pointer = target;
s_desc.dsc$b_class = DSC$K_CLASS_S;
s_desc.dsc$b_dtype = DSC$K_DTYPE_T;
wd_id = uis$create_window(&vd_id, &s_desc);
x1 = 0;
x2 = pb->nc;
rw = pb->nc;
rh = 1;
bpp = 1;
for (row_c = 0; row_c < pb->nr; row_c++) { /* for all pixel rows */
/**
** Unfortunately, we need a bit reversal in each byte here:
**/
row = get_RowBuf(pb, row_c);
if (row == NULL)
continue;
for (byte_c = 0; byte_c < pb->nb; byte_c++) {
c_old = row->buf[byte_c];
if (c_old == 0) /* all white */
continue;
if (c_old == 0xff) /* all black */
continue;
for (i = 0, c_new = 0;;) {
if (c_old & 1)
c_new |= 1;
if (++i == 8) /* 8 bits, 7 shifts */
break;
c_new <<= 1;
c_old >>= 1;
}
row->buf[byte_c] = c_new;
}
uisdc$image(&wd_id, &atb, &x1, &row_c, &x2, &row_c,
&rw, &rh, &bpp, row->buf);
}
getchar();
uis$delete_display(&vd_id);
return 0;
}
