// 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/fx_basic.h" class CBC_ReedSolomonGF256; class CBC_ReedSolomonGF256Poly final { public: CBC_ReedSolomonGF256Poly(CBC_ReedSolomonGF256* field, int32_t coefficients); CBC_ReedSolomonGF256Poly(); ~CBC_ReedSolomonGF256Poly(); bool Init(CBC_ReedSolomonGF256* field, const std::vector<int32_t>* coefficients); int32_t GetCoefficients(int32_t degree) const; const std::vector<int32_t>& GetCoefficients() const; int32_t GetDegree() const; bool IsZero() const; int32_t EvaluateAt(int32_t a); 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> Multiply(int32_t scalar); 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: CFX_UnownedPtr<CBC_ReedSolomonGF256> m_field; std::vector<int32_t> m_coefficients; }; #endif // FXBARCODE_COMMON_REEDSOLOMON_BC_REEDSOLOMONGF256POLY_H_