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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 XFA_FXBARCODE_ONED_BC_ONEDREADER_H_
#define XFA_FXBARCODE_ONED_BC_ONEDREADER_H_
#include "xfa/fxbarcode/BC_Reader.h"
class CBC_BinaryBitmap;
class CBC_CommonBitArray;
class CBC_OneDReader : public CBC_Reader {
public:
CBC_OneDReader();
~CBC_OneDReader() override;
// CBC_Reader
CFX_ByteString Decode(CBC_BinaryBitmap* image, int32_t& e) override;
CFX_ByteString Decode(CBC_BinaryBitmap* image,
int32_t hints,
int32_t& e) override;
virtual CFX_ByteString DecodeRow(int32_t rowNumber,
CBC_CommonBitArray* row,
int32_t hints,
int32_t& e);
private:
CFX_ByteString DeDecode(CBC_BinaryBitmap* image, int32_t hints, int32_t& e);
protected:
static const int32_t INTEGER_MATH_SHIFT = 8;
static const int32_t PATTERN_MATCH_RESULT_SCALE_FACTOR = 1 << 8;
void RecordPattern(CBC_CommonBitArray* row,
int32_t start,
CFX_Int32Array* counters,
int32_t& e);
void RecordPatternInReverse(CBC_CommonBitArray* row,
int32_t start,
CFX_Int32Array* counters,
int32_t& e);
int32_t PatternMatchVariance(CFX_Int32Array* counters,
const int32_t* pattern,
int32_t maxIndividualVariance);
};
#endif // XFA_FXBARCODE_ONED_BC_ONEDREADER_H_
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