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// 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 XFA_FXBARCODE_PDF417_BC_PDF417ECERRORCORRECTION_H_
#define XFA_FXBARCODE_PDF417_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_ArrayTemplate<CBC_PDF417ECModulusPoly*>* 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 // XFA_FXBARCODE_PDF417_BC_PDF417ECERRORCORRECTION_H_
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