static bool detect(pony_ctx_t* ctx, detector_t* d, view_t* view)
{
assert(view->perceived == NULL);
scan_grey(d, view, 0);
int count = scan_white(view);
assert(count >= 0);
if(count == 0)
return false;
d->detected++;
perceived_t* per = (perceived_t*)POOL_ALLOC(perceived_t);
per->token = d->next_token++;
per->ack = 0;
per->last_conf = HASHMAP_BEGIN;
ponyint_viewmap_init(&per->map, count);
ponyint_perceivedmap_put(&d->perceived, per);
int count2 = collect_white(per, view, 0);
(void)count2;
assert(count2 == count);
assert(ponyint_viewmap_size(&per->map) == (size_t)count);
send_conf(ctx, d, per);
return true;
}
SANE_Status
sane_start (SANE_Handle h)
{
struct device_s *dev = (struct device_s *) h;
int status;
size_t size;
dev->read_offset = 0;
dev->write_offset_r = 0;
dev->write_offset_g = 1;
dev->write_offset_b = 2;
free (dev->buffer);
dev->buffer = NULL;
send_pkt (PKT_RESET, 0, dev);
send_pkt (PKT_READ_STATUS, 0, dev);
wait_ack (dev, &status);
if (status)
return SANE_STATUS_IO_ERROR;
send_pkt (PKT_READCONF, 0, dev);
if ((size = wait_ack (dev, NULL)))
{
sanei_usb_read_bulk (dev->dn, (unsigned char *) dev->conf_data, &size);
}
send_pkt (PKT_SETCONF, 100, dev);
send_conf (dev);
wait_ack (dev, NULL);
send_pkt (PKT_START_SCAN, 0, dev);
wait_ack (dev, NULL);
if ((size = wait_ack (dev, NULL)))
{
sanei_usb_read_bulk (dev->dn, (unsigned char *) dev->conf_data, &size);
}
if ((size = wait_ack (dev, NULL)))
{
sanei_usb_read_bulk (dev->dn, (unsigned char *) dev->conf_data, &size);
}
if ((size = wait_ack (dev, NULL)))
{
sanei_usb_read_bulk (dev->dn, (unsigned char *) dev->conf_data, &size);
}
dev->status = STATUS_SCANNING;
/* Get the first data */
return get_data (dev);
}
