| // 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_COMMON_REEDSOLOMON_BC_REEDSOLOMONGF256_H_ |
| #define XFA_FXBARCODE_COMMON_REEDSOLOMON_BC_REEDSOLOMONGF256_H_ |
| |
| #include "core/fxcrt/include/fx_basic.h" |
| #include "xfa/fxbarcode/utils.h" |
| |
| class CBC_ReedSolomonGF256Poly; |
| class CBC_ReedSolomonGF256 { |
| public: |
| static void Initialize(); |
| static void Finalize(); |
| static CBC_ReedSolomonGF256* QRCodeFild; |
| static CBC_ReedSolomonGF256* DataMatrixField; |
| CBC_ReedSolomonGF256(int32_t primitive); |
| virtual ~CBC_ReedSolomonGF256(); |
| CBC_ReedSolomonGF256Poly* GetZero(); |
| CBC_ReedSolomonGF256Poly* GetOne(); |
| CBC_ReedSolomonGF256Poly* BuildMonomial(int32_t degree, |
| int32_t coefficient, |
| int32_t& e); |
| static int32_t AddOrSubtract(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); |
| virtual void Init(); |
| |
| private: |
| int32_t m_expTable[256]; |
| int32_t m_logTable[256]; |
| CBC_ReedSolomonGF256Poly* m_zero; |
| CBC_ReedSolomonGF256Poly* m_one; |
| }; |
| |
| #endif // XFA_FXBARCODE_COMMON_REEDSOLOMON_BC_REEDSOLOMONGF256_H_ |