ClassLibraryWeiBao/QR二维码/ErrorCorrection/ECGenerator.cs

这里只显示每个文件的开头 60 行。登录后可以解锁完整代码。

微信扫码关注公众号，代码整理好后第一时间通知你。

using System;
using System.Linq;
using System.Collections.Generic;
using Gma.QrCodeNet.Encoding.common;
using Gma.QrCodeNet.Encoding.Versions;
using Gma.QrCodeNet.Encoding.ReedSolomon;

namespace Gma.QrCodeNet.Encoding.ErrorCorrection
{
	internal static class ECGenerator
	{
		/// <summary>
		/// Generate error correction blocks. Then out put with codewords BitList
		/// ISO/IEC 18004/2006 P45, 46. Chapter 6.6 Constructing final message codewords sequence.
		/// </summary>
		/// <param name="dataCodewords">Datacodewords from DataEncodation.DataEncode</param>
		/// <param name="numTotalBytes">Total number of bytes</param>
		/// <param name="numDataBytes">Number of data bytes</param>
		/// <param name="numECBlocks">Number of Error Correction blocks</param>
		/// <returns>codewords BitList contain datacodewords and ECCodewords</returns>
		internal static BitList FillECCodewords(BitList dataCodewords, VersionDetail vd)
		{
			List<byte> dataCodewordsByte = dataCodewords.List;
			int ecBlockGroup2 = vd.ECBlockGroup2;
			int ecBlockGroup1 = vd.ECBlockGroup1;
			int numDataBytesGroup1 = vd.NumDataBytesGroup1;
			int numDataBytesGroup2 = vd.NumDataBytesGroup2;
			
			int ecBytesPerBlock = vd.NumECBytesPerBlock;
			
			int dataBytesOffset = 0;
			byte[][] dByteJArray = new byte[vd.NumECBlocks][];
			byte[][] ecByteJArray = new byte[vd.NumECBlocks][];
			
			GaloisField256 gf256 = GaloisField256.QRCodeGaloisField;
			GeneratorPolynomial generator = new GeneratorPolynomial(gf256);
			
			for(int blockID = 0; blockID < vd.NumECBlocks; blockID++)
			{
				if(blockID < ecBlockGroup1)
				{
					dByteJArray[blockID] = new byte[numDataBytesGroup1];
					for(int index = 0; index < numDataBytesGroup1; index++)
					{
						dByteJArray[blockID][index] = dataCodewordsByte[dataBytesOffset + index];
					}
					dataBytesOffset += numDataBytesGroup1;
				}
				else
				{
					dByteJArray[blockID] = new byte[numDataBytesGroup2];
					for(int index = 0; index < numDataBytesGroup2; index++)
					{
						dByteJArray[blockID][index] = dataCodewordsByte[dataBytesOffset + index];
					}
					dataBytesOffset += numDataBytesGroup2;
				}
				
				ecByteJArray[blockID] = ReedSolomonEncoder.Encode(dByteJArray[blockID], ecBytesPerBlock, generator);
			}