| // 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 FXBARCODE_COMMON_REEDSOLOMON_BC_REEDSOLOMONGF256POLY_H_ |
| #define FXBARCODE_COMMON_REEDSOLOMON_BC_REEDSOLOMONGF256POLY_H_ |
| |
| #include <memory> |
| #include <vector> |
| |
| #include "core/fxcrt/unowned_ptr.h" |
| |
| class CBC_ReedSolomonGF256; |
| |
| class CBC_ReedSolomonGF256Poly final { |
| public: |
| CBC_ReedSolomonGF256Poly(CBC_ReedSolomonGF256* field, |
| const std::vector<int32_t>& coefficients); |
| ~CBC_ReedSolomonGF256Poly(); |
| |
| int32_t GetCoefficients(int32_t degree) const; |
| const std::vector<int32_t>& GetCoefficients() const; |
| int32_t GetDegree() const; |
| bool IsZero() const; |
| std::unique_ptr<CBC_ReedSolomonGF256Poly> AddOrSubtract( |
| const CBC_ReedSolomonGF256Poly* other); |
| std::unique_ptr<CBC_ReedSolomonGF256Poly> Multiply( |
| const CBC_ReedSolomonGF256Poly* other); |
| std::unique_ptr<CBC_ReedSolomonGF256Poly> MultiplyByMonomial( |
| int32_t degree, |
| int32_t coefficient) const; |
| std::unique_ptr<CBC_ReedSolomonGF256Poly> Divide( |
| const CBC_ReedSolomonGF256Poly* other); |
| std::unique_ptr<CBC_ReedSolomonGF256Poly> Clone() const; |
| |
| private: |
| UnownedPtr<CBC_ReedSolomonGF256> const m_field; |
| std::vector<int32_t> m_coefficients; |
| }; |
| |
| #endif // FXBARCODE_COMMON_REEDSOLOMON_BC_REEDSOLOMONGF256POLY_H_ |