| // 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_PDF417ECERRORCORRECTION_H_ |
| #define _BC_PDF417ECERRORCORRECTION_H_ |
| class CBC_PDF417ECModulusGF; |
| class CBC_PDF417ECModulusPoly; |
| class CBC_PDF417ECErrorCorrection { |
| public: |
| CBC_PDF417ECErrorCorrection(); |
| virtual ~CBC_PDF417ECErrorCorrection(); |
| static void Initialize(int32_t& e); |
| static void Finalize(); |
| static int32_t decode(CFX_Int32Array& received, |
| int32_t numECCodewords, |
| CFX_Int32Array& erasures, |
| int32_t& e); |
| |
| private: |
| static CBC_PDF417ECModulusGF* m_field; |
| static CFX_PtrArray* runEuclideanAlgorithm(CBC_PDF417ECModulusPoly* a, |
| CBC_PDF417ECModulusPoly* b, |
| int32_t R, |
| int32_t& e); |
| static CFX_Int32Array* findErrorLocations( |
| CBC_PDF417ECModulusPoly* errorLocator, |
| int32_t& e); |
| static CFX_Int32Array* findErrorMagnitudes( |
| CBC_PDF417ECModulusPoly* errorEvaluator, |
| CBC_PDF417ECModulusPoly* errorLocator, |
| CFX_Int32Array& errorLocations, |
| int32_t& e); |
| }; |
| #endif |
