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// 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, 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:
UnownedPtr<CBC_ReedSolomonGF256> m_field;
std::vector<int32_t> m_coefficients;
};
#endif // FXBARCODE_COMMON_REEDSOLOMON_BC_REEDSOLOMONGF256POLY_H_
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