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Diffstat (limited to 'fxbarcode/common/reedsolomon/BC_ReedSolomonGF256.h')
| -rw-r--r-- | fxbarcode/common/reedsolomon/BC_ReedSolomonGF256.h | 47 |
1 files changed, 47 insertions, 0 deletions
diff --git a/fxbarcode/common/reedsolomon/BC_ReedSolomonGF256.h b/fxbarcode/common/reedsolomon/BC_ReedSolomonGF256.h new file mode 100644 index 0000000000..d4b303c5ff --- /dev/null +++ b/fxbarcode/common/reedsolomon/BC_ReedSolomonGF256.h @@ -0,0 +1,47 @@ +// 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_ |