// Copyright 2014 PDFium Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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// Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com
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#ifndef XFA_FXBARCODE_COMMON_REEDSOLOMON_BC_REEDSOLOMONGF256_H_
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#define XFA_FXBARCODE_COMMON_REEDSOLOMON_BC_REEDSOLOMONGF256_H_
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#include "core/fxcrt/include/fx_basic.h"
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#include "xfa/fxbarcode/utils.h"
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class CBC_ReedSolomonGF256Poly;
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class CBC_ReedSolomonGF256 {
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public:
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static void Initialize();
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static void Finalize();
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static CBC_ReedSolomonGF256* QRCodeFild;
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static CBC_ReedSolomonGF256* DataMatrixField;
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CBC_ReedSolomonGF256(int32_t primitive);
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virtual ~CBC_ReedSolomonGF256();
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CBC_ReedSolomonGF256Poly* GetZero();
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CBC_ReedSolomonGF256Poly* GetOne();
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CBC_ReedSolomonGF256Poly* BuildMonomial(int32_t degree,
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int32_t coefficient,
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int32_t& e);
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static int32_t AddOrSubtract(int32_t a, int32_t b);
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int32_t Exp(int32_t a);
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int32_t Log(int32_t a, int32_t& e);
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int32_t Inverse(int32_t a, int32_t& e);
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int32_t Multiply(int32_t a, int32_t b);
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virtual void Init();
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private:
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int32_t m_expTable[256];
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int32_t m_logTable[256];
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CBC_ReedSolomonGF256Poly* m_zero;
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CBC_ReedSolomonGF256Poly* m_one;
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};
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#endif // XFA_FXBARCODE_COMMON_REEDSOLOMON_BC_REEDSOLOMONGF256_H_
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