static void symbol_handler (zbar_decoder_t *dcode)
{
zbar_image_scanner_t *iscn = zbar_decoder_get_userdata(dcode);
zbar_symbol_type_t type = zbar_decoder_get_type(dcode);
int x = 0, y = 0, dir;
const char *data;
unsigned datalen;
zbar_symbol_t *sym;
#ifdef ENABLE_QRCODE
if(type == ZBAR_QRCODE) {
qr_handler(iscn);
return;
}
#else
assert(type != ZBAR_QRCODE);
#endif
if(TEST_CFG(iscn, ZBAR_CFG_POSITION)) {
/* tmp position fixup */
int w = zbar_scanner_get_width(iscn->scn);
int u = iscn->umin + iscn->du * zbar_scanner_get_edge(iscn->scn, w, 0);
if(iscn->dx) {
x = u;
y = iscn->v;
}
else {
x = iscn->v;
y = u;
}
}
/* FIXME debug flag to save/display all PARTIALs */
if(type <= ZBAR_PARTIAL) {
zprintf(256, "partial symbol @(%d,%d)\n", x, y);
return;
}
data = zbar_decoder_get_data(dcode);
datalen = zbar_decoder_get_data_length(dcode);
/* FIXME need better symbol matching */
for(sym = iscn->syms->head; sym; sym = sym->next)
if(sym->type == type &&
sym->datalen == datalen &&
!memcmp(sym->data, data, datalen)) {
sym->quality++;
zprintf(224, "dup symbol @(%d,%d): dup %s: %.20s\n",
x, y, zbar_get_symbol_name(type), data);
if(TEST_CFG(iscn, ZBAR_CFG_POSITION))
/* add new point to existing set */
/* FIXME should be polygon */
sym_add_point(sym, x, y);
return;
}
sym = _zbar_image_scanner_alloc_sym(iscn, type, datalen + 1);
sym->configs = zbar_decoder_get_configs(dcode, type);
sym->modifiers = zbar_decoder_get_modifiers(dcode);
/* FIXME grab decoder buffer */
memcpy(sym->data, data, datalen + 1);
/* initialize first point */
if(TEST_CFG(iscn, ZBAR_CFG_POSITION)) {
zprintf(192, "new symbol @(%d,%d): %s: %.20s\n",
x, y, zbar_get_symbol_name(type), data);
sym_add_point(sym, x, y);
}
dir = zbar_decoder_get_direction(dcode);
if(dir)
sym->orient = (iscn->dy != 0) + ((iscn->du ^ dir) & 2);
_zbar_image_scanner_add_sym(iscn, sym);
}
static PyObject*
decoder_get_direction (zbarDecoder *self,
void *closure)
{
return(PyInt_FromLong(zbar_decoder_get_direction(self->zdcode)));
}