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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_PDF417ECMODULUSGF_H_
#define XFA_FXBARCODE_PDF417_BC_PDF417ECMODULUSGF_H_
class CBC_PDF417ECModulusPoly;
class CBC_PDF417ECModulusGF {
public:
CBC_PDF417ECModulusGF(int32_t modulus, int32_t generator, int32_t& e);
virtual ~CBC_PDF417ECModulusGF();
static void Initialize(int32_t& e);
static void Finalize();
CBC_PDF417ECModulusPoly* getZero();
CBC_PDF417ECModulusPoly* getOne();
CBC_PDF417ECModulusPoly* buildMonomial(int32_t degree,
int32_t coefficient,
int32_t& e);
int32_t add(int32_t a, int32_t b);
int32_t subtract(int32_t a, int32_t b);
int32_t exp(int32_t a);
int32_t log(int32_t a, int32_t& e);
int32_t inverse(int32_t a, int32_t& e);
int32_t multiply(int32_t a, int32_t b);
int32_t getSize();
static CBC_PDF417ECModulusGF* PDF417_GF;
private:
CFX_Int32Array m_expTable;
CFX_Int32Array m_logTable;
CBC_PDF417ECModulusPoly* m_zero;
CBC_PDF417ECModulusPoly* m_one;
int32_t m_modulus;
};
#endif // XFA_FXBARCODE_PDF417_BC_PDF417ECMODULUSGF_H_
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