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-rw-r--r--fxbarcode/common/reedsolomon/BC_ReedSolomonGF256.h47
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diff --git a/fxbarcode/common/reedsolomon/BC_ReedSolomonGF256.h b/fxbarcode/common/reedsolomon/BC_ReedSolomonGF256.h
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+++ b/fxbarcode/common/reedsolomon/BC_ReedSolomonGF256.h
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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_REEDSOLOMONGF256_H_
+#define FXBARCODE_COMMON_REEDSOLOMON_BC_REEDSOLOMONGF256_H_
+
+#include <memory>
+
+#include "core/fxcrt/fx_basic.h"
+#include "fxbarcode/utils.h"
+
+class CBC_ReedSolomonGF256Poly;
+
+class CBC_ReedSolomonGF256 {
+ public:
+ explicit CBC_ReedSolomonGF256(int32_t primitive);
+ virtual ~CBC_ReedSolomonGF256();
+
+ static void Initialize();
+ static void Finalize();
+
+ CBC_ReedSolomonGF256Poly* GetZero() const;
+ CBC_ReedSolomonGF256Poly* GetOne() const;
+ CBC_ReedSolomonGF256Poly* BuildMonomial(int32_t degree,
+ int32_t coefficient,
+ int32_t& e);
+ static int32_t AddOrSubtract(int32_t a, int32_t b);
+ int32_t Exp(int32_t a);
+ int32_t Log(int32_t a, int32_t& e);
+ int32_t Inverse(int32_t a, int32_t& e);
+ int32_t Multiply(int32_t a, int32_t b);
+ virtual void Init();
+
+ static CBC_ReedSolomonGF256* QRCodeField;
+ static CBC_ReedSolomonGF256* DataMatrixField;
+
+ private:
+ int32_t m_expTable[256];
+ int32_t m_logTable[256];
+ std::unique_ptr<CBC_ReedSolomonGF256Poly> m_zero;
+ std::unique_ptr<CBC_ReedSolomonGF256Poly> m_one;
+};
+
+#endif // FXBARCODE_COMMON_REEDSOLOMON_BC_REEDSOLOMONGF256_H_