// 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 |