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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, FX_INT32 &e);
virtual CFX_ByteString Decode(CBC_BinaryBitmap *image, FX_INT32 hints, FX_INT32 &e);
virtual CFX_ByteString DecodeRow(FX_INT32 rowNumber, CBC_CommonBitArray *row, FX_INT32 hints, FX_INT32 &e)
{
return "";
}
private:
CFX_ByteString DeDecode(CBC_BinaryBitmap *image, FX_INT32 hints, FX_INT32 &e);
protected:
const static FX_INT32 INTEGER_MATH_SHIFT;
const static FX_INT32 PATTERN_MATCH_RESULT_SCALE_FACTOR;
void RecordPattern(CBC_CommonBitArray *row, FX_INT32 start, CFX_Int32Array *counters, FX_INT32 &e);
void RecordPatternInReverse(CBC_CommonBitArray *row, FX_INT32 start, CFX_Int32Array *counters, FX_INT32 &e);
FX_INT32 PatternMatchVariance(CFX_Int32Array *counters, const FX_INT32 *pattern, FX_INT32 maxIndividualVariance);
};
#endif
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