// 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 { | |
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 |