1 // Copyright 2014 PDFium Authors. All rights reserved. 2 // Use of this source code is governed by a BSD-style license that can be 3 // found in the LICENSE file. 4 5 // Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com 6 7 #ifndef FXBARCODE_COMMON_REEDSOLOMON_BC_REEDSOLOMONGF256POLY_H_ 8 #define FXBARCODE_COMMON_REEDSOLOMON_BC_REEDSOLOMONGF256POLY_H_ 9 10 #include <memory> 11 #include <vector> 12 13 #include "core/fxcrt/unowned_ptr.h" 14 15 class CBC_ReedSolomonGF256; 16 17 class CBC_ReedSolomonGF256Poly final { 18 public: 19 CBC_ReedSolomonGF256Poly(CBC_ReedSolomonGF256* field, 20 const std::vector<int32_t>& coefficients); 21 ~CBC_ReedSolomonGF256Poly(); 22 23 int32_t GetCoefficients(int32_t degree) const; 24 const std::vector<int32_t>& GetCoefficients() const; 25 int32_t GetDegree() const; 26 bool IsZero() const; 27 std::unique_ptr<CBC_ReedSolomonGF256Poly> AddOrSubtract( 28 const CBC_ReedSolomonGF256Poly* other); 29 std::unique_ptr<CBC_ReedSolomonGF256Poly> Multiply( 30 const CBC_ReedSolomonGF256Poly* other); 31 std::unique_ptr<CBC_ReedSolomonGF256Poly> MultiplyByMonomial( 32 int32_t degree, 33 int32_t coefficient) const; 34 std::unique_ptr<CBC_ReedSolomonGF256Poly> Divide( 35 const CBC_ReedSolomonGF256Poly* other); 36 std::unique_ptr<CBC_ReedSolomonGF256Poly> Clone() const; 37 38 private: 39 UnownedPtr<CBC_ReedSolomonGF256> const m_field; 40 std::vector<int32_t> m_coefficients; 41 }; 42 43 #endif // FXBARCODE_COMMON_REEDSOLOMON_BC_REEDSOLOMONGF256POLY_H_ 44