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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 _BC_ONEDREADER_H_
#define _BC_ONEDREADER_H_
class CBC_Reader;
class CBC_BinaryBitmap;
class CBC_CommonBitArray;
class CBC_OneDReader;
class CBC_OneDReader : public CBC_Reader {
public:
CBC_OneDReader();
virtual ~CBC_OneDReader();
virtual CFX_ByteString Decode(CBC_BinaryBitmap* image, int32_t& e);
virtual CFX_ByteString Decode(CBC_BinaryBitmap* image,
int32_t hints,
int32_t& e);
virtual CFX_ByteString DecodeRow(int32_t rowNumber,
CBC_CommonBitArray* row,
int32_t hints,
int32_t& e) {
return "";
}
private:
CFX_ByteString DeDecode(CBC_BinaryBitmap* image, int32_t hints, int32_t& e);
protected:
const static int32_t INTEGER_MATH_SHIFT;
const static int32_t PATTERN_MATCH_RESULT_SCALE_FACTOR;
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
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