| // 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_REEDSOLOMONGF256_H_ | |
| #define _BC_REEDSOLOMONGF256_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 |