mirror of
https://github.com/status-im/qzxing.git
synced 2025-02-01 05:36:21 +00:00
47 lines
1.3 KiB
C++
47 lines
1.3 KiB
C++
#ifndef __REED_SOLOMON_DECODER_H__
|
|
#define __REED_SOLOMON_DECODER_H__
|
|
|
|
/*
|
|
* ReedSolomonDecoder.h
|
|
* zxing
|
|
*
|
|
* Copyright 2010 ZXing authors All rights reserved.
|
|
*
|
|
* Licensed under the Apache License, Version 2.0 (the "License");
|
|
* you may not use this file except in compliance with the License.
|
|
* You may obtain a copy of the License at
|
|
*
|
|
* http://www.apache.org/licenses/LICENSE-2.0
|
|
*
|
|
* Unless required by applicable law or agreed to in writing, software
|
|
* distributed under the License is distributed on an "AS IS" BASIS,
|
|
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
* See the License for the specific language governing permissions and
|
|
* limitations under the License.
|
|
*/
|
|
|
|
#include <memory>
|
|
#include <vector>
|
|
#include <zxing/common/Counted.h>
|
|
#include <zxing/common/Array.h>
|
|
|
|
namespace zxing {
|
|
class GF256;
|
|
class GF256Poly;
|
|
|
|
class ReedSolomonDecoder {
|
|
private:
|
|
GF256 &field;
|
|
public:
|
|
ReedSolomonDecoder(GF256 &fld);
|
|
~ReedSolomonDecoder();
|
|
void decode(ArrayRef<int> received, int twoS);
|
|
private:
|
|
std::vector<Ref<GF256Poly> > runEuclideanAlgorithm(Ref<GF256Poly> a, Ref<GF256Poly> b, int R);
|
|
ArrayRef<int> findErrorLocations(Ref<GF256Poly> errorLocator);
|
|
ArrayRef<int> findErrorMagnitudes(Ref<GF256Poly> errorEvaluator, ArrayRef<int> errorLocations);
|
|
};
|
|
}
|
|
|
|
#endif // __REED_SOLOMON_DECODER_H__
|