| Server IP : 74.208.127.88 / Your IP : 3.19.234.118 Web Server : Apache/2.4.41 (Ubuntu) System : Linux ubuntu 5.4.0-163-generic #180-Ubuntu SMP Tue Sep 5 13:21:23 UTC 2023 x86_64 User : www-data ( 33) PHP Version : 7.4.3-4ubuntu2.29 Disable Function : pcntl_alarm,pcntl_fork,pcntl_waitpid,pcntl_wait,pcntl_wifexited,pcntl_wifstopped,pcntl_wifsignaled,pcntl_wifcontinued,pcntl_wexitstatus,pcntl_wtermsig,pcntl_wstopsig,pcntl_signal,pcntl_signal_get_handler,pcntl_signal_dispatch,pcntl_get_last_error,pcntl_strerror,pcntl_sigprocmask,pcntl_sigwaitinfo,pcntl_sigtimedwait,pcntl_exec,pcntl_getpriority,pcntl_setpriority,pcntl_async_signals,pcntl_unshare, MySQL : OFF | cURL : ON | WGET : ON | Perl : ON | Python : OFF | Sudo : ON | Pkexec : ON Directory : /var/www/html/app6/plugins/jsqrcode/ |
Upload File : |
/*
Ported to JavaScript by Lazar Laszlo 2011
lazarsoft@gmail.com, www.lazarsoft.info
*/
/*
*
* Copyright 2007 ZXing authors
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
Decoder={};
Decoder.rsDecoder = new ReedSolomonDecoder(GF256.QR_CODE_FIELD);
Decoder.correctErrors=function( codewordBytes, numDataCodewords)
{
var numCodewords = codewordBytes.length;
// First read into an array of ints
var codewordsInts = new Array(numCodewords);
for (var i = 0; i < numCodewords; i++)
{
codewordsInts[i] = codewordBytes[i] & 0xFF;
}
var numECCodewords = codewordBytes.length - numDataCodewords;
try
{
Decoder.rsDecoder.decode(codewordsInts, numECCodewords);
//var corrector = new ReedSolomon(codewordsInts, numECCodewords);
//corrector.correct();
}
catch ( rse)
{
throw rse;
}
// Copy back into array of bytes -- only need to worry about the bytes that were data
// We don't care about errors in the error-correction codewords
for (var i = 0; i < numDataCodewords; i++)
{
codewordBytes[i] = codewordsInts[i];
}
}
Decoder.decode=function(bits)
{
var parser = new BitMatrixParser(bits);
var version = parser.readVersion();
var ecLevel = parser.readFormatInformation().ErrorCorrectionLevel;
// Read codewords
var codewords = parser.readCodewords();
// Separate into data blocks
var dataBlocks = DataBlock.getDataBlocks(codewords, version, ecLevel);
// Count total number of data bytes
var totalBytes = 0;
for (var i = 0; i < dataBlocks.length; i++)
{
totalBytes += dataBlocks[i].NumDataCodewords;
}
var resultBytes = new Array(totalBytes);
var resultOffset = 0;
// Error-correct and copy data blocks together into a stream of bytes
for (var j = 0; j < dataBlocks.length; j++)
{
var dataBlock = dataBlocks[j];
var codewordBytes = dataBlock.Codewords;
var numDataCodewords = dataBlock.NumDataCodewords;
Decoder.correctErrors(codewordBytes, numDataCodewords);
for (var i = 0; i < numDataCodewords; i++)
{
resultBytes[resultOffset++] = codewordBytes[i];
}
}
// Decode the contents of that stream of bytes
var reader = new QRCodeDataBlockReader(resultBytes, version.VersionNumber, ecLevel.Bits);
return reader;
//return DecodedBitStreamParser.decode(resultBytes, version, ecLevel);
}