trippest.mycht.cn/api/application/libraries/wxpay/phpqrcode/qrbitstream.php

<?php
defined('BASEPATH') OR exit('No direct script access allowed');

class QRbitstream {
    protected $ci;

    public function __construct()
    {
        $this->ci =& get_instance();
    }


        public $data = array();

        //----------------------------------------------------------------------
        public function size()
        {
            return count($this->data);
        }

        //----------------------------------------------------------------------
        public function allocate($setLength)
        {
            $this->data = array_fill(0, $setLength, 0);
            return 0;
        }

        //----------------------------------------------------------------------
        public static function newFromNum($bits, $num)
        {
            $bstream = new QRbitstream();
            $bstream->allocate($bits);

            $mask = 1 << ($bits - 1);
            for($i=0; $i<$bits; $i++) {
                if($num & $mask) {
                    $bstream->data[$i] = 1;
                } else {
                    $bstream->data[$i] = 0;
                }
                $mask = $mask >> 1;
            }

            return $bstream;
        }

        //----------------------------------------------------------------------
        public static function newFromBytes($size, $data)
        {
            $bstream = new QRbitstream();
            $bstream->allocate($size * 8);
            $p=0;

            for($i=0; $i<$size; $i++) {
                $mask = 0x80;
                for($j=0; $j<8; $j++) {
                    if($data[$i] & $mask) {
                        $bstream->data[$p] = 1;
                    } else {
                        $bstream->data[$p] = 0;
                    }
                    $p++;
                    $mask = $mask >> 1;
                }
            }

            return $bstream;
        }

        //----------------------------------------------------------------------
        public function append(QRbitstream $arg)
        {
            if (is_null($arg)) {
                return -1;
            }

            if($arg->size() == 0) {
                return 0;
            }

            if($this->size() == 0) {
                $this->data = $arg->data;
                return 0;
            }

            $this->data = array_values(array_merge($this->data, $arg->data));

            return 0;
        }

        //----------------------------------------------------------------------
        public function appendNum($bits, $num)
        {
            if ($bits == 0)
                return 0;

            $b = QRbitstream::newFromNum($bits, $num);

            if(is_null($b))
                return -1;

            $ret = $this->append($b);
            unset($b);

            return $ret;
        }

        //----------------------------------------------------------------------
        public function appendBytes($size, $data)
        {
            if ($size == 0)
                return 0;

            $b = QRbitstream::newFromBytes($size, $data);

            if(is_null($b))
                return -1;

            $ret = $this->append($b);
            unset($b);

            return $ret;
        }

        //----------------------------------------------------------------------
        public function toByte()
        {

            $size = $this->size();

            if($size == 0) {
                return array();
            }

            $data = array_fill(0, (int)(($size + 7) / 8), 0);
            $bytes = (int)($size / 8);

            $p = 0;

            for($i=0; $i<$bytes; $i++) {
                $v = 0;
                for($j=0; $j<8; $j++) {
                    $v = $v << 1;
                    $v |= $this->data[$p];
                    $p++;
                }
                $data[$i] = $v;
            }

            if($size & 7) {
                $v = 0;
                for($j=0; $j<($size & 7); $j++) {
                    $v = $v << 1;
                    $v |= $this->data[$p];
                    $p++;
                }
                $data[$bytes] = $v;
            }

            return $data;
        }

    }


/* End of file  */
/* Location: ./application/libraries/ */