| // 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_ |