| // 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; | |
| class CBC_ReedSolomonGF256 : public CFX_Object | |
| { | |
| public: | |
| static void Initialize(); | |
| static void Finalize(); | |
| static CBC_ReedSolomonGF256 *QRCodeFild; | |
| static CBC_ReedSolomonGF256 *DataMatrixField; | |
| CBC_ReedSolomonGF256(FX_INT32 primitive); | |
| virtual ~CBC_ReedSolomonGF256(); | |
| CBC_ReedSolomonGF256Poly* GetZero(); | |
| CBC_ReedSolomonGF256Poly* GetOne(); | |
| CBC_ReedSolomonGF256Poly* BuildMonomial(FX_INT32 degree, FX_INT32 coefficient, FX_INT32 &e); | |
| static FX_INT32 AddOrSubtract(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); | |
| virtual void Init(); | |
| private: | |
| FX_INT32 m_expTable[256]; | |
| FX_INT32 m_logTable[256]; | |
| CBC_ReedSolomonGF256Poly *m_zero; | |
| CBC_ReedSolomonGF256Poly *m_one; | |
| }; | |
| #endif |