// 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