| // 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 |
