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47 lines
1.5 KiB
47 lines
1.5 KiB
// 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 <memory> |
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#include "core/fxcrt/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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explicit CBC_ReedSolomonGF256(int32_t primitive); |
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virtual ~CBC_ReedSolomonGF256(); |
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static void Initialize(); |
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static void Finalize(); |
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CBC_ReedSolomonGF256Poly* GetZero() const; |
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CBC_ReedSolomonGF256Poly* GetOne() const; |
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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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static CBC_ReedSolomonGF256* QRCodeField; |
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static CBC_ReedSolomonGF256* DataMatrixField; |
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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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std::unique_ptr<CBC_ReedSolomonGF256Poly> m_zero; |
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std::unique_ptr<CBC_ReedSolomonGF256Poly> m_one; |
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}; |
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#endif // XFA_FXBARCODE_COMMON_REEDSOLOMON_BC_REEDSOLOMONGF256_H_
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