public function __construct(QRinput $input)
{
$spec = array(0, 0, 0, 0, 0);
$this->datacode = $input->getByteStream();
if (is_null($this->datacode)) {
throw new Exception('null imput string');
}
QRspec::getEccSpec($input->getVersion(), $input->getErrorCorrectionLevel(), $spec);
$this->version = $input->getVersion();
$this->b1 = QRspec::rsBlockNum1($spec);
$this->dataLength = QRspec::rsDataLength($spec);
$this->eccLength = QRspec::rsEccLength($spec);
$this->ecccode = array_fill(0, $this->eccLength, 0);
$this->blocks = QRspec::rsBlockNum($spec);
$ret = $this->init($spec);
if ($ret < 0) {
throw new Exception('block alloc error');
return null;
}
$this->count = 0;
}
