// Copyright 2014 PDFium Authors. All rights reserved. // Use of this source code is governed by a BSD-style license that can be // found in the LICENSE file. // Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com #ifndef _BC_ERRORCORRECTION_H_ #define _BC_ERRORCORRECTION_H_ class CBC_SymbolInfo; class CBC_ErrorCorrection; class CBC_ErrorCorrection : public CFX_Object { public: CBC_ErrorCorrection(); virtual ~CBC_ErrorCorrection(); static void Initialize(); static void Finalize(); static CFX_WideString encodeECC200(CFX_WideString codewords, CBC_SymbolInfo* symbolInfo, FX_INT32 &e); private: static FX_INT32 FACTOR_SETS[]; static FX_INT32 FACTORS[][100]; static FX_INT32 MODULO_VALUE; static FX_INT32 LOG[256]; static FX_INT32 ALOG[256]; private: static CFX_WideString createECCBlock(CFX_WideString codewords, FX_INT32 numECWords, FX_INT32 &e); static CFX_WideString createECCBlock(CFX_WideString codewords, FX_INT32 start, FX_INT32 len, FX_INT32 numECWords, FX_INT32 &e); }; #endif