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QrCode.php
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<?php
/**
* QR Code
* 二维码类
*
* @author http://weibo.com/yakeing
* @version 3.2.1
*
* $text [QR code content] (string) (二维码内容)
* $pixel [size of the QR] (ini) (输出图片尺寸)
* $icon [Icon path] (string) (二维码中间小图标)
* $distinguish [Recognition rate] (L=7% , M=15% , Q=25% , H=30%) (识别率)
* $type [Output image format] (jpg/png) (输出图片格式, 因GIF有版权之争)
* $margin [QR code margin] ( 0-4) 边距
* $color [QR code color] RBG array('255,255,255', '0,0,0') OR Hexadecimal 'FF0000,000000' (二维码颜色)
* $stream [Source code] (true/false) (输出源代码)
* $spec [specifications] (0-40) (规格矩阵)
*
* qrcode::image($text, $pixel, $icon, $distinguish, $type, $margin, $color, $stream);
* 注意: 背景 $color[0] 颜色 ff0000 相撞 $icon 变成透明;
* 使用正方形 $icon 否则出现小图标变形
*/
namespace qr_code;
class QrCode{
public static function image($text, $pixel = 200, $icon = false, $distinguish = 'L', $type = 'PNG', $margin = 0, $color = false, $spec=1, $stream = false, $OutputPath = null){
//string 文字
$string = new qrcode_string();
$string->initial($text, $distinguish, intval($spec));
$datacode = $string->getByteStream();
$version = $string->version;
//pattern 模式
$pattern = new qrcode_pattern();
$width = $pattern->getWidth($version);
$frame = $pattern->newFrame($version);
//exchange 转换
$exchange = new qrcode_exchange();
$masked = $exchange->run($string, $width, $frame, $datacode);
$tab = $exchange->binarize($masked);
if(true === $stream) return $tab;
//image 图像
$img = new qrcode_image();
$im = $img->ImgColor($tab, $pixel, $icon, $margin, $color);
if(!is_string($OutputPath)){
$OutputPath = null;
}
if(strtoupper($type) == 'PNG'){
header('Content-type: image/PNG');
ImagePNG($im, $OutputPath);
}else{
header('Content-type: image/JPEG');
ImageJPEG($im, $OutputPath);//合成输出
}
ImageDestroy($im); //结束图形
return $im;
}
}//END class qrcode
/*
* QR Code Image 图像处理
* Author: weibo.com/yakeing
* ImageCreate 256色
* ImageCreateTrueColor 真彩色
* ImageCopyResized 粗糙速度快
* ImageCopyResampled 平滑速度慢
*/
class qrcode_image{
//图像与颜色
function ImgColor($frame, $pixel, $iconurl, $margin, $color){
//$pixel = $pixel/count($frame);
if(is_array($color) && 2 == count($color)){ //RGB
$RGB = array();
foreach($color as $value){
$matches = array();
if(preg_match('/^([0-9]{0,3}),([0-9]{0,3}),([0-9]{0,3})$/', $value, $matches)){
array_shift($matches);
$RGB[] = array_map(
function($person) {
return ($person > 255) ? 255 : $person;
}, $matches);
}else{
$RGB[] = array(255, 0, 0);
}
}
}else if(preg_match('/^[#]?([0-9a-f]{2})([0-9a-f]{2})([0-9a-f]{2}),[#]?([0-9a-f]{2})([0-9a-f]{2})([0-9a-f]{2})$/i', $color, $matches)){ //十六进制
array_shift($matches);
$RGB = array_chunk(
array_map(function($person) {
return hexdec($person);
}, $matches), 3);
}else{
$RGB = array(array(255, 0, 0), array(0, 0, 0));
}
$im = $this->image($frame, $pixel, $margin, $RGB);
if(is_file($iconurl)) $im = $this->addIcon($im, $iconurl, $RGB);
return $im;
} //END img
//构造图层
private function image($frame, $PixelPoint, $blank, $RGB){
$PixelPoint = intval($PixelPoint);
$blank = intval($blank);
if($PixelPoint < 1) $PixelPoint = 1;
$h = count($frame);
$w = strlen($frame[0]);
// $imgW = $h * $PixelPoint;
// $imgH = $w * $PixelPoint;
$imgW = $imgH = $PixelPoint;
$chart = ImageCreateTrueColor($w, $h);//真彩
$black = ImageColorAllocate($chart, $RGB[1][0], $RGB[1][1], $RGB[1][2]);//底色黑
ImageFill($chart, 0, 0, ImageColorAllocate($chart, $RGB[0][0], $RGB[0][1], $RGB[0][2]));//图形着色->底色白
for($y=0; $y<$h; ++$y){
for($x=0; $x<$w; ++$x){
if ($frame[$y][$x] == '1'){
ImageSetPixel($chart,$x,$y,$black); //画一个单一像素
}
}
}
$basics = ImageCreateTrueColor($imgW, $imgH);
ImageCopyResized($basics, $chart, 0, 0, 0, 0, $imgW, $imgH, $w, $h);//复制新图并调整大小
ImageDestroy($chart); //销毁一图像
if($blank > 0){//追加边框
$rimW = $imgW+$blank;
$rimH = $imgH+$blank;
$rim = ImageCreateTrueColor($rimW, $rimH);
ImageFill($rim, 0, 0, ImageColorAllocate($rim, $RGB[0][0], $RGB[0][1], $RGB[0][2]));
ImageCopyResized($rim, $basics, $blank/2, $blank/2, 0, 0, $imgW, $imgH, $imgW, $imgH);
ImageDestroy($basics);
return $rim;
}else{
return $basics;
}
} //END image
//ADD ICON (3.7948)
// http://php.net/manual/zh/function.exif-imagetype.php 图像类型常量
private function addIcon($im, $icon, $RGB){
if(function_exists('exif_imagetype')){
$type = exif_imagetype($icon);
}else{
list($width, $height, $type, $attr) = getimagesize($icon);
}
switch($type){
case 1: //IMAGETYPE_GIF
$ico = ImageCreateFromGIF($icon);
break;
case 2: //IMAGETYPE_JPEG
$ico = ImageCreateFromJPEG($icon);
break;
case 3: //IMAGETYPE_PNG
$ico = ImageCreateFromPNG($icon);
break;
default: exit('Image type or image path error. Support type: GIF JPG PNG');
}
$x = ImagesX($ico);
$y = ImagesY($ico);
$RadiusIco = $this->radiusImage($ico, $x, $y);
//white Background
$BackgX = $x/8+$x;
$BackgY = $y/8+$y;
$white_im = ImageCreateTrueColor($BackgX, $BackgY);
$white_colo = ImageColorAllocate($white_im, $RGB[0][0], $RGB[0][1], $RGB[0][2]);
ImageFill($white_im, 0, 0, $white_colo);
$white_icox = $BackgX/2-$x/2+1;
$white_icoy = $BackgY/2-$y/2+1;
ImageCopyResized($white_im, $RadiusIco, $white_icox, $white_icoy, 0, 0, $x, $y, $x, $y);
ImageDestroy($RadiusIco);
$RadiusWhite = $this->radiusImage($white_im, $BackgX, $BackgY);
ImageDestroy($white_im);
//Transparent Background + alpha
$AlphaIm = ImageCreateTrueColor($BackgX, $BackgY);
$AlphaColo = ImageColorAllocateAlpha($AlphaIm, 255, 0, 0, 127);//分配颜色 + alpha
ImageFill($AlphaIm, 0, 0, $AlphaColo);
ImageCopyResized($AlphaIm, $RadiusWhite, 0, 0, 0, 0, $BackgX, $BackgY, $BackgX, $BackgY);
ImageDestroy($RadiusWhite);
imagesavealpha($AlphaIm, true);
//QR Background Synthesis
$radiusX = ImagesX($AlphaIm);
$RadiusY = ImagesY($AlphaIm);
$qrX = ImagesX($im);
$qrY = ImagesY($im);
$w = $qrX/3.7948;
$h = $qrY/3.7948;
$newX = $qrX/2-($w/2)+1;
$newY = $qrY/2-($h/2)+1;
ImageCopyResampled($im,$AlphaIm,$newX,$newY,0,0,$w,$h,$radiusX,$RadiusY);
ImageDestroy($AlphaIm);
return $im;
} //END addIcon
//图片圆角
//GD 2.0.1 或更高版本
private function radiusImage($im, $width, $height){
$image = ImageCreateTrueColor($width, $height); //新建真彩图像
$bgcolor = ImageColorAllocate($image, 255, 0, 0);
ImageFill($image, 0, 0, $bgcolor);
ImageCopyMerge($image, $im, 0, 0, 0, 0, $width, $height, 100);
//radius Image
$radiusX = $width/4;
$radiusY = $height/4;
$img = ImageCreateTrueColor($radiusX, $radiusY); //新建真彩图像
$fgcolor = ImageColorAllocate($img, 0, 0, 0);
$bgcolor = ImageColorAllocate($img, 255, 0, 0);
ImageFill($img, 0, 0, $bgcolor);
//180 270 开始角度到结束角度
ImageFilledArc($img, $radiusX, $radiusY, $radiusX*2, $radiusY*2, 180, 270, $fgcolor, IMG_ARC_PIE);
imagecolortransparent($img, $fgcolor);
// Top left
ImageCopyMerge($image, $img, 0, 0, 0, 0, $width, $height, 100);
// Bottom left
$bottom_left = ImageRotate($img, 90, $bgcolor); //角度旋转
ImageCopyMerge($image, $bottom_left, 0, $height - $radiusY+1, 0, 0, $width, $height, 100);
ImageDestroy($bottom_left);
// Top right
$top_right = ImageRotate($img, 180, $bgcolor);
ImageCopyMerge($image, $top_right, $width - $radiusX+1, $height - $radiusY+1, 0, 0, $width, $height, 100);
ImageDestroy($top_right);
// Bottom right
$bottom_right = ImageRotate($img, 270, $bgcolor);
ImageCopyMerge($image, $bottom_right, $width - $radiusX+1, 0, 0, 0, $width, $height, 100);
ImageDestroy($bottom_right);
ImageDestroy($img);
ImageColorTransparent($image, $bgcolor); //设置颜色为透明
return $image;
} //END radiusImage
}//END class qrcode_image
/*
* QR Code Exchange 转换
*
* PHP QR Code is distributed under LGPL 3
* Copyright (C) 2010 Dominik Dzienia
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*/
class qrcode_exchange{
//二进制转换
function binarize($frame){
$len = count($frame);
foreach ($frame as &$frameLine) {
for($i=0; $i<$len; ++$i) {
$frameLine[$i] = (ord($frameLine[$i])&1)?'1':'0';
}
}
return $frame;
}//END binarize
//run 初始run
function run($input, $width, $frame, $datacode){
$this->runLength = array();
$this->runLength = array_fill(0, 177 + 1, 0);
$raw = new qrcode_string();
$raw->datacode = $datacode;
$raw->setString($input);
$filler = new qrcode_exchange();
$filler->initframe($width, $frame);
for($i=0; $i<$raw->dataLength + $raw->eccLength; ++$i) {
$code = $raw->getCode();
$bit = 0x80;
for($j=0; $j<8; ++$j) {
$addr = $filler->nexts();
$filler->setFrameAt($addr, 0x02 | (($bit & $code) != 0));
$bit = $bit >> 1;
}
}
$j = $this->getRemainder($input->version);
for($i=0; $i<$j; ++$i) {
$addr = $filler->nexts();
$filler->setFrameAt($addr, 0x02);
}
return $this->mask($width, $filler->frame, $input->level);
}//END run
//initframe 初始框架数据
private function initframe($width, $frame){
$this->width = $width;
$this->frame = $frame;
$this->x = $width - 1;
$this->y = $width - 1;
$this->dir = -1;
$this->bit = -1;
}//END initframe
//get 得到剩余
private function getRemainder($version){
return qrcode_table::$capacity[$version][2];
}//END getRemainder
//set设置框架
private function setFrameAt($at, $val){
$this->frame[$at['y']][$at['x']] = chr($val);
}//END setFrameAt
//next 紧邻
private function nexts(){
do {
if($this->bit == -1) {
$this->bit = 0;
return array('x'=>$this->x, 'y'=>$this->y);
}
$x = $this->x;
$y = $this->y;
$w = $this->width;
if($this->bit == 0) {
--$x;
++$this->bit;
} else {
++$x;
$y += $this->dir;
--$this->bit;
}
if($this->dir < 0) {
if($y < 0) {
$y = 0;
$x -= 2;
$this->dir = 1;
if($x == 6) {
--$x;
$y = 9;
}
}
} else {
if($y == $w) {
$y = $w - 1;
$x -= 2;
$this->dir = -1;
if($x == 6) {
--$x;
$y -= 8;
}
}
}
if($x < 0 || $y < 0) return null;
$this->x = $x;
$this->y = $y;
} while(ord($this->frame[$y][$x]) & 0x80);
return array('x'=>$x, 'y'=>$y);
}//END next
//mask 掩码
private function mask($width, $frame, $level){
$minDemerit = PHP_INT_MAX;
$bestMaskNum = 0;
$bestMask = array();
$checked_masks = array(0,1,2,3,4,5,6,7);
$howManuOut = 8-(2 % 9);
for ($i = 0; $i < $howManuOut; ++$i) {
$remPos = rand (0, count($checked_masks)-1);
unset($checked_masks[$remPos]);
$checked_masks = array_values($checked_masks);
}
$bestMask = $frame;
foreach($checked_masks as $i) {
$mask = array_fill(0, $width, str_repeat("\0", $width));
$demerit = 0;
$blacks = 0;
$blacks = $this->makeMaskNo($i, $width, $frame, $mask);
$blacks += $this->writeFormatInformation($width, $mask, $i, $level);
$blacks = (int)(100 * $blacks / ($width * $width));
$demerit = (int)((int)(abs($blacks - 50) / 5) * 10);
$demerit += $this->evaluateSymbol($width, $mask);
if($demerit < $minDemerit) {
$minDemerit = $demerit;
$bestMask = $mask;
$bestMaskNum = $i;
}
}
return $bestMask;
}//END mask
//make 做掩码开关
private function makeMaskNo($maskNo, $width, $s, &$d, $maskGenOnly = false) {
$b = 0;
$bitMask = array();
$bitMask = $this->generateMaskNo($maskNo, $width, $s, $d);
if ($maskGenOnly) return;
$d = $s;
for($y=0; $y<$width; ++$y) {
for($x=0; $x<$width; ++$x) {
if($bitMask[$y][$x] == 1) $d[$y][$x] = chr(ord($s[$y][$x]) ^ (int)$bitMask[$y][$x]);
$b += (int)(ord($d[$y][$x]) & 1);
}
}
return $b;
}//NED makeMaskNo
//generate 生成掩码开关
private function generateMaskNo($maskNo, $width, $frame){
$bitMask = array_fill(0, $width, array_fill(0, $width, 0));
for($y=0; $y<$width; ++$y) {
for($x=0; $x<$width; ++$x) {
if(ord($frame[$y][$x]) & 0x80) {
$bitMask[$y][$x] = 0;
} else {
$maskFunc = call_user_func(array($this, 'mask'.$maskNo), $x, $y);
$bitMask[$y][$x] = ($maskFunc == 0)?1:0;
}
}
}
return $bitMask;
}//NED generateMaskNo
private function mask0($x, $y) { return ($x+$y)&1; }
private function mask1($x, $y) { return ($y&1); }
private function mask2($x, $y) { return ($x%3); }
private function mask3($x, $y) { return ($x+$y)%3; }
private function mask4($x, $y) { return (((int)($y/2))+((int)($x/3)))&1; }
private function mask5($x, $y) { return (($x*$y)&1)+($x*$y)%3; }
private function mask6($x, $y) { return ((($x*$y)&1)+($x*$y)%3)&1; }
private function mask7($x, $y) { return ((($x*$y)%3)+(($x+$y)&1))&1; }
//write 写信息
private function writeFormatInformation($width, &$frame, $mask, $level){
$blacks = 0;
$format = $this->getFormatInfo($mask, $level);
for($i=0; $i<8; ++$i) {
if($format & 1) {
$blacks += 2;
$v = 0x85;
} else {
$v = 0x84;
}
$frame[8][$width - 1 - $i] = chr($v);
if($i < 6) {
$frame[$i][8] = chr($v);
} else {
$frame[$i + 1][8] = chr($v);
}
$format = $format >> 1;
}
for($i=0; $i<7; ++$i) {
if($format & 1) {
$blacks += 2;
$v = 0x85;
} else {
$v = 0x84;
}
$frame[$width - 7 + $i][8] = chr($v);
if($i == 0) {
$frame[8][7] = chr($v);
} else {
$frame[8][6 - $i] = chr($v);
}
$format = $format >> 1;
}
return $blacks;
}//END writeFormatInformation
//get 获得格式信息
private function getFormatInfo($mask, $level){
if($mask < 0 || $mask > 7) return 0;
if($level < 0 || $level > 3) return 0;
return qrcode_table::$formatInfo[$level][$mask];
}//END getFormatInfo
//evaluate 评价符号
private function evaluateSymbol($width, $frame){
$head = 0;
$demerit = 0;
for($y=0; $y<$width; ++$y) {
$head = 0;
$this->runLength[0] = 1;
$frameY = $frame[$y];
if ($y>0) $frameYM = $frame[$y-1];
for($x=0; $x<$width; ++$x) {
if(($x > 0) && ($y > 0)) {
$b22 = ord($frameY[$x]) & ord($frameY[$x-1]) & ord($frameYM[$x]) & ord($frameYM[$x-1]);
$w22 = ord($frameY[$x]) | ord($frameY[$x-1]) | ord($frameYM[$x]) | ord($frameYM[$x-1]);
if(($b22 | ($w22 ^ 1))&1) $demerit += 3;
}
if(($x == 0) && (ord($frameY[$x]) & 1)) {
$this->runLength[0] = -1;
$head = 1;
$this->runLength[$head] = 1;
} else if($x > 0) {
if((ord($frameY[$x]) ^ ord($frameY[$x-1])) & 1) {
++$head;
$this->runLength[$head] = 1;
} else {
++$this->runLength[$head];
}
}
}
$demerit += $this->calcN1N3($head+1);
}
for($x=0; $x<$width; ++$x) {
$head = 0;
$this->runLength[0] = 1;
for($y=0; $y<$width; ++$y) {
if($y == 0 && (ord($frame[$y][$x]) & 1)) {
$this->runLength[0] = -1;
$head = 1;
$this->runLength[$head] = 1;
} else if($y > 0) {
if((ord($frame[$y][$x]) ^ ord($frame[$y-1][$x])) & 1) {
++$head;
$this->runLength[$head] = 1;
}else{
++$this->runLength[$head];
}
}
}
$demerit += $this->calcN1N3($head+1);
}
return $demerit;
}//END evaluateSymbol
//calc 计算n1 n3模式
private function calcN1N3($length){
$demerit = 0;
for($i=0; $i<$length; ++$i) {
if($this->runLength[$i] >= 5) {
$demerit += (3 + ($this->runLength[$i] - 5));
}
if($i & 1) {
if(($i >= 3) && ($i < ($length-2)) && ($this->runLength[$i] % 3 == 0)) {
$fact = (int)($this->runLength[$i] / 3);
if(($this->runLength[$i-2] == $fact) && ($this->runLength[$i-1] == $fact) && ($this->runLength[$i+1] == $fact) && ($this->runLength[$i+2] == $fact)) {
if(($this->runLength[$i-3] < 0) || ($this->runLength[$i-3] >= (4 * $fact))) {
$demerit += 40;
} else if((($i+3) >= $length) || ($this->runLength[$i+3] >= (4 * $fact))) {
$demerit += 40;
}
}
}
}
}
return $demerit;
}//END calcN1N3
}//END class qrcode_exchange
/*
* QR Code String 文本处理
*
* PHP QR Code is distributed under LGPL 3
* Copyright (C) 2010 Dominik Dzienia
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*/
class qrcode_string{
//initial 初始化 public
function initial($dataStr, $level, $spec){
$this->dataStr = $dataStr; //Str 字符串
$this->level = $this->GetGrade($level); //level 识别率
if($spec < 1 ){
$spec = 1;
}elseif($spec > 40 ){
$spec = 40;
}
$this->version = $spec; //version 版本
$this->splitString();
}//END initial
//get 获取当前识别率 lovel
private function GetGrade($i){
return qrcode_table::$grade[strtoupper($i)];
}//END GetGrade
//----------------------------------------NO: 第四分支 附加 to------------------------------------------
//set 字符 public
function setString($input){
$this->newcode();
$spec = array(0,0,0,0,0);
$this->getEccSpec($input->version, $input->level, $spec);
$this->version = $input->version;
$this->b1 = $this->rsBlockNum1($spec);
$this->dataLength = $this->rsDataLength($spec);
$this->eccLength = $this->rsEccLength($spec);
$this->ecccode = array_fill(0, $this->eccLength, 0);
$this->blocks = $this->rsBlockNum($spec);
$ret = $this->init($spec);
if($ret < 0) return null;
$this->count = 0;
return $this;
}//END setString
//new 新类
private function newinit(){
$this->alpha_to = $this->index_of = $this->genpoly = array(); // Generator polynomial
$this->mm = $this->nn = $this->nroots = $this->fcr = $this->prim = $this->iprim = $this->pad = $this->gfpoly = NULL;
}//NED newinit
//new 新类
private function newcode(){
$this->ecccode = $this->rsblocks = array(); //of RSblock
$this->blocks = $this->count = $this->dataLength = $this->eccLength = $this->b1 = NULL;
}//NED newcode
//ECC 获得ECC规格 ok
private function getEccSpec($version, $level, array &$spec){
if (count($spec) < 5) $spec = array(0,0,0,0,0);
$b1 = qrcode_table::$eccTable[$version][$level][0];
$b2 = qrcode_table::$eccTable[$version][$level][1];
$data = $this->getDataLength($version, $level);
$ecc = $this->getECCLength($version, $level);
if($b2 == 0) {
$spec[0] = $b1;
$spec[1] = (int)($data / $b1);
$spec[2] = (int)($ecc / $b1);
$spec[3] = 0;
$spec[4] = 0;
} else {
$spec[0] = $b1;
$spec[1] = (int)($data / ($b1 + $b2));
$spec[2] = (int)($ecc / ($b1 + $b2));
$spec[3] = $b2;
$spec[4] = $spec[1] + 1;
}
}//END getEccSpec
//get 获取ECC长度
private function getECCLength($version, $level){
return qrcode_table::$capacity[$version][3][$level];
}//END getECCLength
private function rsBlockNum($spec) { return $spec[0] + $spec[3]; }
private function rsEccLength($spec) { return ($spec[0] + $spec[3]) * $spec[2]; }
private function rsDataLength($spec) { return ($spec[0] * $spec[1]) + ($spec[3] * $spec[4]); }
private function rsBlockNum1($spec) { return $spec[0]; }
private function rsDataCodes1($spec) { return $spec[1]; }
private function rsEccCodes1($spec) { return $spec[2]; }
private function rsBlockNum2($spec) { return $spec[3]; }
private function rsDataCodes2($spec) { return $spec[4]; }
private function rsEccCodes2($spec) { return $spec[2]; }
//init 初始init
private function init(array $spec){
$this->items = array();
$dl = $this->rsDataCodes1($spec);
$el = $this->rsEccCodes1($spec);
$rs = $this->init_rs(8, 0x11d, 0, 1, $el, 255 - $dl - $el);
$blockNo = 0;
$dataPos = 0;
$eccPos = 0;
for($i=0; $i<$this->rsBlockNum1($spec); ++$i) {
$ecc = array_slice($this->ecccode,$eccPos);
$this->rsblocks[$blockNo] = $this->qrrsblock($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($this->rsBlockNum2($spec) == 0) return 0;
$dl = $this->rsDataCodes2($spec);
$el = $this->rsEccCodes2($spec);
$rs = $this->init_rs(8, 0x11d, 0, 1, $el, 255 - $dl - $el);
if($rs == NULL) return -1;
for($i=0; $i<$this->rsBlockNum2($spec); ++$i) {
$ecc = array_slice($this->ecccode,$eccPos);
$this->rsblocks[$blockNo] = $this->qrrsblock($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;
}//END init
//get 获取带吗 public
function getCode(){
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 $ret;
}//END get Code
//init RS
private function init_rs($symsize, $gfpoly, $fcr, $prim, $nroots, $pad){
foreach($this->items as $rs) {
if($rs->pad != $pad) continue;
if($rs->nroots != $nroots) continue;
if($rs->mm != $symsize) continue;
if($rs->gfpoly != $gfpoly) continue;
if($rs->fcr != $fcr) continue;
if($rs->prim != $prim) continue;
return $rs;
}
$rs = $this->init_rs_char($symsize, $gfpoly, $fcr, $prim, $nroots, $pad);
array_unshift($this->items, $rs);
return $rs;
}//END init_rs
//init RS字符
private function init_rs_char($symsize, $gfpoly, $fcr, $prim, $nroots, $pad){
$rs = null;
// Check parameter ranges
if($symsize < 0 || $symsize > 8) return $rs;
if($fcr < 0 || $fcr >= (1<<$symsize)) return $rs;
if($prim <= 0 || $prim >= (1<<$symsize)) return $rs;
if($nroots < 0 || $nroots >= (1<<$symsize)) return $rs; // Can't have more roots than symbol values!
if($pad < 0 || $pad >= ((1<<$symsize) -1 - $nroots)) return $rs; // Too much padding
$rs = new qrcode_string();
$rs->newinit();
$rs->mm = $symsize;
$rs->nn = (1<<$symsize)-1;
$rs->pad = $pad;
$rs->alpha_to = array_fill(0, $rs->nn+1, 0);
$rs->index_of = array_fill(0, $rs->nn+1, 0);
// PHP style macro replacement ;)
$NN =& $rs->nn;
$A0 =& $NN;
// Generate Galois field lookup tables
$rs->index_of[0] = $A0; // log(zero) = -inf
$rs->alpha_to[$A0] = 0; // alpha**-inf = 0
$sr = 1;
for($i=0; $i<$rs->nn; ++$i) {
$rs->index_of[$sr] = $i;
$rs->alpha_to[$i] = $sr;
$sr <<= 1;
if($sr & (1<<$symsize)) {
$sr ^= $gfpoly;
}
$sr &= $rs->nn;
}
if($sr != 1){
// field generator polynomial is not primitive!
$rs = NULL;
return $rs;
}
$rs->genpoly = array_fill(0, $nroots+1, 0);
$rs->fcr = $fcr;
$rs->prim = $prim;
$rs->nroots = $nroots;
$rs->gfpoly = $gfpoly;
for($iprim=1;($iprim % $prim) != 0;$iprim += $rs->nn)
; // intentional empty-body loop!
$rs->iprim = (int)($iprim / $prim);
$rs->genpoly[0] = 1;
for ($i = 0,$root=$fcr*$prim; $i < $nroots; ++$i, $root += $prim) {
$rs->genpoly[$i+1] = 1;
// Multiply rs->genpoly[] by @**(root + x)
for ($j = $i; $j > 0; --$j) {
if ($rs->genpoly[$j] != 0) {
$rs->genpoly[$j] = $rs->genpoly[$j-1] ^ $rs->alpha_to[$rs->modnn($rs->index_of[$rs->genpoly[$j]] + $root)];
} else {
$rs->genpoly[$j] = $rs->genpoly[$j-1];
}
}
// rs->genpoly[0] can never be zero
$rs->genpoly[0] = $rs->alpha_to[$rs->modnn($rs->index_of[$rs->genpoly[0]] + $root)];
}
// convert rs->genpoly[] to index form for quicker encoding
for ($i = 0; $i <= $nroots; ++$i) $rs->genpoly[$i] = $rs->index_of[$rs->genpoly[$i]];
return $rs;
}//END init_rs_char
//modnn
private function modnn($x){
while ($x >= $this->nn) {
$x -= $this->nn;
$x = ($x >> $this->mm) + ($x & $this->nn);
}
return $x;
}//END modnn
//qrrsblock RSB锁
private function qrrsblock($dl, $data, $el, &$ecc, $rs){
$qrcode = new qrcode_string();
$rs->encode_rs_char($data, $ecc);
$qrcode->dataLength = $dl;
$qrcode->data = $data;
$qrcode->eccLength = $el;
$qrcode->ecc = $ecc;
return $qrcode;
}//END qrrsblock
//encode 编码RS字符
private function encode_rs_char($data, &$parity){
$MM =& $this->mm;
$NN =& $this->nn;
$ALPHA_TO =& $this->alpha_to;
$INDEX_OF =& $this->index_of;
$GENPOLY =& $this->genpoly;
$NROOTS =& $this->nroots;
$FCR =& $this->fcr;
$PRIM =& $this->prim;
$IPRIM =& $this->iprim;
$PAD =& $this->pad;
$A0 =& $NN;
$parity = array_fill(0, $NROOTS, 0);
for($i=0; $i< ($NN-$NROOTS-$PAD); ++$i) {
$feedback = $INDEX_OF[$data[$i] ^ $parity[0]];
if($feedback != $A0) {
$feedback = $this->modnn($NN - $GENPOLY[$NROOTS] + $feedback);
for($j=1;$j<$NROOTS;++$j) {
$parity[$j] ^= $ALPHA_TO[$this->modnn($feedback + $GENPOLY[$NROOTS-$j])];
}
}
array_shift($parity);
if($feedback != $A0) {
array_push($parity, $ALPHA_TO[$this->modnn($feedback + $GENPOLY[0])]);
} else {
array_push($parity, 0);
}
}
}//END encode_rs_char
//----------------------------------------NO: 第三分支 流系列 to------------------------------------------
//get 得到字节流 public
function getByteStream(){
$bstream = $this->getBitStream();
if($bstream == null) return null;
return $bstream->toByte();
}// END getByteStream
//get 编码流
private function getBitStream(){
$bstream = $this->mergeBitStream();
if($bstream == null) return null;
$ret = $this->appendPaddingBit($bstream);
if($ret < 0) return null;
return $bstream;
}//END getBitStream
//to 字节
private 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 $data;
}// toByte
//merge 合并流
private function mergeBitStream(){
if($this->convertData() < 0) return null;
$bstream = new qrcode_string();
$bstream->data = array();
foreach($this->items as $item){
$ret = $bstream->append_size($item->bstream);
if($ret < 0) return null;
}
return $bstream;
}//END mergeBitStream
//size 数组数量
private function size(){
return count($this->data);
}//END size
//append 追加
private function append($mode, $size, $data){
try {
$entry = new qrcode_string();
$entry->data = array();
$entry->assignment($mode, $size, $data);
$this->items[] = $entry;
return 0;
} catch (Exception $e){
return -1;
}
}//END append
//size 追加size
private function append_size($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, $arg->data));
return 0;
}//END append_size
//QRinputItem 赋值
private function assignment($mode, $size, $data, $bstream = null){
$setData = array_slice($data, 0, $size);
if (count($setData) < $size) $setData = array_merge($setData, array_fill(0,$size-count($setData),0));
if(!$this->check($mode, $size, $setData)){
//ERR::Exception('Error m:'.$mode.',s:'.$size.',d:'.join(',',$setData));
return null;
}
$this->mode = $mode;
$this->size = $size;
$this->data = $setData;
$this->bstream = $bstream;
return $this;
}//END assignment
//check 检查
private function check($mode, $size, $data){
if($size <= 0) return false;
switch($mode) {
case 0: return $this->checkModeNum($size, $data); break;
case 1: return $this->checkModeAn($size, $data); break;
// case 3: return self::checkModeKanji($size, $data); break;
case 2: return true; break;
case 4: return true; break;
default: break;
}
return false;
}//END check
//check 检查数模式
private function checkModeNum($size, $data){
for($i=0; $i<$size; ++$i) {
if((ord($data[$i]) < ord('0')) || (ord($data[$i]) > ord('9'))) return false;
}
return true;
}//END checkModeNum
//check 检查单模式
private function checkModeAn($size, $data){
for($i=0; $i<$size; ++$i) {
if ($this->lookAnTable(ord($data[$i])) == -1) return false;
}
return true;
}//END checkModeAn
//append 附加填充位
private function appendPaddingBit($bstream){
$bits = $bstream->size();
$maxwords = $this->getDataLength($this->version, $this->level);
$maxbits = $maxwords * 8;
if ($maxbits == $bits) return 0;
if ($maxbits - $bits < 5) return $bstream->appendNum($maxbits - $bits, 0);
$bits += 4;
$words = (int)(($bits + 7) / 8);
$padding = new qrcode_string();
$padding->data = array();
$ret = $padding->appendNum($words * 8 - $bits + 4, 0);
if($ret < 0) return $ret;
$padlen = $maxwords - $words;
if($padlen > 0){
$padbuf = array();
for($i=0; $i<$padlen; ++$i){
$padbuf[$i] = ($i&1)?0x11:0xec;
}
$ret = $padding->appendBytes($padlen, $padbuf);
if($ret < 0) return $ret;
}
$ret = $bstream->append_size($padding);
return $ret;
}//END appendPaddingBit
//get 得到数据长度
private function getDataLength($version, $level){
return qrcode_table::$capacity[$version][1] - qrcode_table::$capacity[$version][3][$level];
}//END getDataLength
//appendNum 追加数
private function appendNum($bits, $num){
if ($bits == 0) return 0;
$bstream = new qrcode_string();
$bstream->data = array();
$b = $this->newFromNum($bits, $num);
if(is_null($b)) return -1;
$ret = $this->append_size($b);
unset($b);
return $ret;
}//END appendNum
//new 新数
private function newFromNum($bits, $num){
$bstream = new qrcode_string();
$bstream->data = array();
$bstream->allocate($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;