| // 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 { |
| public: |
| CBC_ErrorCorrection(); |
| virtual ~CBC_ErrorCorrection(); |
| static void Initialize(); |
| static void Finalize(); |
| static CFX_WideString encodeECC200(CFX_WideString codewords, |
| CBC_SymbolInfo* symbolInfo, |
| int32_t& e); |
| |
| private: |
| static int32_t FACTOR_SETS[]; |
| static int32_t FACTORS[][100]; |
| static int32_t MODULO_VALUE; |
| static int32_t LOG[256]; |
| static int32_t ALOG[256]; |
| |
| private: |
| static CFX_WideString createECCBlock(CFX_WideString codewords, |
| int32_t numECWords, |
| int32_t& e); |
| static CFX_WideString createECCBlock(CFX_WideString codewords, |
| int32_t start, |
| int32_t len, |
| int32_t numECWords, |
| int32_t& e); |
| }; |
| #endif |