1 // Copyright 2014 PDFium Authors. All rights reserved. 2 // Use of this source code is governed by a BSD-style license that can be 3 // found in the LICENSE file. 4 5 // Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com 6 7 #ifndef FXBARCODE_DATAMATRIX_BC_ERRORCORRECTION_H_ 8 #define FXBARCODE_DATAMATRIX_BC_ERRORCORRECTION_H_ 9 10 #include "core/fxcrt/widestring.h" 11 12 class CBC_SymbolInfo; 13 14 class CBC_ErrorCorrection { 15 public: 16 CBC_ErrorCorrection(); 17 virtual ~CBC_ErrorCorrection(); 18 19 static void Initialize(); 20 static void Finalize(); 21 static WideString encodeECC200(WideString codewords, 22 CBC_SymbolInfo* symbolInfo, 23 int32_t& e); 24 25 private: 26 static int32_t MODULO_VALUE; 27 static int32_t LOG[256]; 28 static int32_t ALOG[256]; 29 30 private: 31 static WideString createECCBlock(WideString codewords, 32 int32_t numECWords, 33 int32_t& e); 34 static WideString createECCBlock(WideString codewords, 35 int32_t start, 36 int32_t len, 37 int32_t numECWords, 38 int32_t& e); 39 }; 40 41 #endif // FXBARCODE_DATAMATRIX_BC_ERRORCORRECTION_H_ 42
