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- <?php
- /**
- * QRrawcode.php
- *
- * Created by arielferrandini
- */
- namespace PHPQRCode;
- use Exception;
- class QRrawcode {
- public $version;
- public $datacode = array();
- public $ecccode = array();
- public $blocks;
- public $rsblocks = array(); //of RSblock
- public $count;
- public $dataLength;
- public $eccLength;
- public $b1;
- //----------------------------------------------------------------------
- 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 input 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;
- }
- //----------------------------------------------------------------------
- public function init(array $spec)
- {
- $dl = QRspec::rsDataCodes1($spec);
- $el = QRspec::rsEccCodes1($spec);
- $rs = QRrs::init_rs(8, 0x11d, 0, 1, $el, 255 - $dl - $el);
- $blockNo = 0;
- $dataPos = 0;
- $eccPos = 0;
- for($i=0; $i<QRspec::rsBlockNum1($spec); $i++) {
- $ecc = array_slice($this->ecccode,$eccPos);
- $this->rsblocks[$blockNo] = new QRrsblock($dl, array_slice($this->datacode, $dataPos), $el, $ecc, $rs);
- $this->ecccode = array_merge(array_slice($this->ecccode,0, $eccPos), $ecc);
- $dataPos += $dl;
- $eccPos += $el;
- $blockNo++;
- }
- if(QRspec::rsBlockNum2($spec) == 0)
- return 0;
- $dl = QRspec::rsDataCodes2($spec);
- $el = QRspec::rsEccCodes2($spec);
- $rs = QRrs::init_rs(8, 0x11d, 0, 1, $el, 255 - $dl - $el);
- if($rs == NULL) return -1;
- for($i=0; $i<QRspec::rsBlockNum2($spec); $i++) {
- $ecc = array_slice($this->ecccode,$eccPos);
- $this->rsblocks[$blockNo] = new QRrsblock($dl, array_slice($this->datacode, $dataPos), $el, $ecc, $rs);
- $this->ecccode = array_merge(array_slice($this->ecccode,0, $eccPos), $ecc);
- $dataPos += $dl;
- $eccPos += $el;
- $blockNo++;
- }
- return 0;
- }
- //----------------------------------------------------------------------
- public function getCode()
- {
- $ret = null;
- if($this->count < $this->dataLength) {
- $row = $this->count % $this->blocks;
- $col = $this->count / $this->blocks;
- if($col >= $this->rsblocks[0]->dataLength) {
- $row += $this->b1;
- }
- $ret = $this->rsblocks[$row]->data[$col];
- } else if($this->count < $this->dataLength + $this->eccLength) {
- $row = ($this->count - $this->dataLength) % $this->blocks;
- $col = ($this->count - $this->dataLength) / $this->blocks;
- $ret = $this->rsblocks[$row]->ecc[$col];
- } else {
- return 0;
- }
- $this->count++;
- return $ret;
- }
- }
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