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Diffstat (limited to 'xfa/fxbarcode/oned/BC_OneDReader.h')
| -rw-r--r-- | xfa/fxbarcode/oned/BC_OneDReader.h | 50 |
1 files changed, 50 insertions, 0 deletions
diff --git a/xfa/fxbarcode/oned/BC_OneDReader.h b/xfa/fxbarcode/oned/BC_OneDReader.h new file mode 100644 index 0000000000..2bab06e9b8 --- /dev/null +++ b/xfa/fxbarcode/oned/BC_OneDReader.h @@ -0,0 +1,50 @@ +// 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(); + 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: + 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_ |