| // 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_ONEDUPCEANREADER_H_ | |
| #define _BC_ONEDUPCEANREADER_H_ | |
| class CBC_OneDReader; | |
| class CBC_CommonBitArray; | |
| class CBC_OneDimReader; | |
| class CBC_OneDimReader : public CBC_OneDReader { | |
| private: | |
| const static int32_t MAX_AVG_VARIANCE; | |
| const static int32_t MAX_INDIVIDUAL_VARIANCE; | |
| FX_BOOL CheckStandardUPCEANChecksum(CFX_ByteString& s, int32_t& e); | |
| public: | |
| const static int32_t START_END_PATTERN[3]; | |
| const static int32_t MIDDLE_PATTERN[5]; | |
| const static int32_t L_PATTERNS[10][4]; | |
| const static int32_t L_AND_G_PATTERNS[20][4]; | |
| CBC_OneDimReader(); | |
| virtual ~CBC_OneDimReader(); | |
| CFX_ByteString DecodeRow(int32_t rowNumber, | |
| CBC_CommonBitArray* row, | |
| int32_t hints, | |
| int32_t& e); | |
| CFX_ByteString DecodeRow(int32_t rowNumber, | |
| CBC_CommonBitArray* row, | |
| CFX_Int32Array* startGuardRange, | |
| int32_t hints, | |
| int32_t& e); | |
| protected: | |
| CFX_Int32Array* FindStartGuardPattern(CBC_CommonBitArray* row, int32_t& e); | |
| virtual FX_BOOL CheckChecksum(CFX_ByteString& s, int32_t& e); | |
| CFX_Int32Array* FindGuardPattern(CBC_CommonBitArray* row, | |
| int32_t rowOffset, | |
| FX_BOOL whiteFirst, | |
| CFX_Int32Array* pattern, | |
| int32_t& e); | |
| int32_t DecodeDigit(CBC_CommonBitArray* row, | |
| CFX_Int32Array* counters, | |
| int32_t rowOffset, | |
| const int32_t* patterns, | |
| int32_t patternLength, | |
| int32_t& e); | |
| virtual int32_t DecodeMiddle(CBC_CommonBitArray* row, | |
| CFX_Int32Array* startRange, | |
| CFX_ByteString& resultResult, | |
| int32_t& e) { | |
| return 0; | |
| } | |
| virtual CFX_Int32Array* DecodeEnd(CBC_CommonBitArray* row, | |
| int32_t endStart, | |
| int32_t& e); | |
| }; | |
| #endif |