// 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_PDF417ECMODULUSGF_H_ | |
#define _BC_PDF417ECMODULUSGF_H_ | |
class CBC_PDF417ECModulusPoly; | |
class CBC_PDF417Common; | |
class CBC_PDF417ECModulusGF; | |
class CBC_PDF417ECModulusGF : public CFX_Object | |
{ | |
public: | |
CBC_PDF417ECModulusGF(FX_INT32 modulus, FX_INT32 generator, FX_INT32 &e); | |
virtual ~CBC_PDF417ECModulusGF(); | |
static void Initialize(FX_INT32 &e); | |
static void Finalize(); | |
CBC_PDF417ECModulusPoly* getZero(); | |
CBC_PDF417ECModulusPoly* getOne(); | |
CBC_PDF417ECModulusPoly* buildMonomial(FX_INT32 degree, FX_INT32 coefficient, FX_INT32 &e); | |
FX_INT32 add(FX_INT32 a, FX_INT32 b); | |
FX_INT32 subtract(FX_INT32 a, FX_INT32 b); | |
FX_INT32 exp(FX_INT32 a); | |
FX_INT32 log(FX_INT32 a, FX_INT32 &e); | |
FX_INT32 inverse(FX_INT32 a, FX_INT32 &e); | |
FX_INT32 multiply(FX_INT32 a, FX_INT32 b); | |
FX_INT32 getSize(); | |
static CBC_PDF417ECModulusGF* PDF417_GF; | |
private: | |
CFX_Int32Array m_expTable; | |
CFX_Int32Array m_logTable; | |
CBC_PDF417ECModulusPoly* m_zero; | |
CBC_PDF417ECModulusPoly* m_one; | |
FX_INT32 m_modulus; | |
}; | |
#endif |