1 line
31 KiB
JavaScript
1 line
31 KiB
JavaScript
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var qrcode=function(){var qrcode=function(typeNumber,errorCorrectionLevel){var PAD0=236;var PAD1=17;var _typeNumber=typeNumber;var _errorCorrectionLevel=QRErrorCorrectionLevel[errorCorrectionLevel];var _modules=null;var _moduleCount=0;var _dataCache=null;var _dataList=[];var _this={};var makeImpl=function(test,maskPattern){_moduleCount=_typeNumber*4+17;_modules=function(moduleCount){var modules=new Array(moduleCount);for(var row=0;row<moduleCount;row+=1){modules[row]=new Array(moduleCount);for(var col=0;col<moduleCount;col+=1){modules[row][col]=null}}return modules}(_moduleCount);setupPositionProbePattern(0,0);setupPositionProbePattern(_moduleCount-7,0);setupPositionProbePattern(0,_moduleCount-7);setupPositionAdjustPattern();setupTimingPattern();setupTypeInfo(test,maskPattern);if(_typeNumber>=7){setupTypeNumber(test)}if(_dataCache==null){_dataCache=createData(_typeNumber,_errorCorrectionLevel,_dataList)}mapData(_dataCache,maskPattern)};var setupPositionProbePattern=function(row,col){for(var r=-1;r<=7;r+=1){if(row+r<=-1||_moduleCount<=row+r)continue;for(var c=-1;c<=7;c+=1){if(col+c<=-1||_moduleCount<=col+c)continue;if(0<=r&&r<=6&&(c==0||c==6)||0<=c&&c<=6&&(r==0||r==6)||2<=r&&r<=4&&2<=c&&c<=4){_modules[row+r][col+c]=true}else{_modules[row+r][col+c]=false}}}};var getBestMaskPattern=function(){var minLostPoint=0;var pattern=0;for(var i=0;i<8;i+=1){makeImpl(true,i);var lostPoint=QRUtil.getLostPoint(_this);if(i==0||minLostPoint>lostPoint){minLostPoint=lostPoint;pattern=i}}return pattern};var setupTimingPattern=function(){for(var r=8;r<_moduleCount-8;r+=1){if(_modules[r][6]!=null){continue}_modules[r][6]=r%2==0}for(var c=8;c<_moduleCount-8;c+=1){if(_modules[6][c]!=null){continue}_modules[6][c]=c%2==0}};var setupPositionAdjustPattern=function(){var pos=QRUtil.getPatternPosition(_typeNumber);for(var i=0;i<pos.length;i+=1){for(var j=0;j<pos.length;j+=1){var row=pos[i];var col=pos[j];if(_modules[row][col]!=null){continue}for(var r=-2;r<=2;r+=1){for(var c=-2;c<=2;c+=1){if(r==-2||r==2||c==-2||c==2||r==0&&c==0){_modules[row+r][col+c]=true}else{_modules[row+r][col+c]=false}}}}}};var setupTypeNumber=function(test){var bits=QRUtil.getBCHTypeNumber(_typeNumber);for(var i=0;i<18;i+=1){var mod=!test&&(bits>>i&1)==1;_modules[Math.floor(i/3)][i%3+_moduleCount-8-3]=mod}for(var i=0;i<18;i+=1){var mod=!test&&(bits>>i&1)==1;_modules[i%3+_moduleCount-8-3][Math.floor(i/3)]=mod}};var setupTypeInfo=function(test,maskPattern){var data=_errorCorrectionLevel<<3|maskPattern;var bits=QRUtil.getBCHTypeInfo(data);for(var i=0;i<15;i+=1){var mod=!test&&(bits>>i&1)==1;if(i<6){_modules[i][8]=mod}else if(i<8){_modules[i+1][8]=mod}else{_modules[_moduleCount-15+i][8]=mod}}for(var i=0;i<15;i+=1){var mod=!test&&(bits>>i&1)==1;if(i<8){_modules[8][_moduleCount-i-1]=mod}else if(i<9){_modules[8][15-i-1+1]=mod}else{_modules[8][15-i-1]=mod}}_modules[_moduleCount-8][8]=!test};var mapData=function(data,maskPattern){var inc=-1;var row=_moduleCount-1;var bitIndex=7;var byteIndex=0;var maskFunc=QRUtil.getMaskFunction(maskPattern);for(var col=_moduleCount-1;col>0;col-=2){if(col==6)col-=1;while(true){for(var c=0;c<2;c+=1){if(_modules[row][col-c]==null){var dark=false;if(byteIndex<data.length){dark=(data[byteIndex]>>>bitIndex&1)==1}var mask=maskFunc(row,col-c);if(mask){dark=!dark}_modules[row][col-c]=dark;bitIndex-=1;if(bitIndex==-1){byteIndex+=1;bitIndex=7}}}row+=inc;if(row<0||_moduleCount<=row){row-=inc;inc=-inc;break}}}};var createBytes=function(buffer,rsBlocks){var offset=0;var maxDcCount=0;var maxEcCount=0;var dcdata=new Array(rsBlocks.length);var ecdata=new Array(rsBlocks.length);for(var r=0;r<rsBlocks.length;r+=1){var dcCount=rsBlocks[r].dataCount;var ecCount=rsBlocks[r].totalCount-dcCount;maxDcCount=Math.max(maxDcCount,dcCount);maxEcCount=Math.max(maxEcCount,ecCount);dcdata[r]=new Array(dcCount);for(var i=0;i<dcdata[r].length;i+=1){dcdata[r][i]=255&buffer.getBuffer()[i+offset]}offset+=dcCount;var rsPoly=QRUtil.getErrorCorrectPolynomial(ecCount);var rawPoly=qrPolynomial(dcdata[r],rsPoly.getLength()-1);var modPoly=rawPoly.mod(rsPoly);ecdata[r]=new Array(rsPoly.getLength()-
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