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