1 // Copyright 2014 PDFium Authors. All rights reserved. 2 // Use of this source code is governed by a BSD-style license that can be 3 // found in the LICENSE file. 4 5 // Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com 6 7 #ifndef CORE_FXCODEC_JBIG2_JBIG2_SEGMENT_H_ 8 #define CORE_FXCODEC_JBIG2_JBIG2_SEGMENT_H_ 9 10 #include <memory> 11 #include <vector> 12 13 #include "core/fxcodec/jbig2/JBig2_Define.h" 14 #include "core/fxcodec/jbig2/JBig2_HuffmanTable.h" 15 #include "core/fxcodec/jbig2/JBig2_PatternDict.h" 16 #include "core/fxcodec/jbig2/JBig2_SymbolDict.h" 17 18 enum JBig2_SegmentState { 19 JBIG2_SEGMENT_HEADER_UNPARSED, 20 JBIG2_SEGMENT_DATA_UNPARSED, 21 JBIG2_SEGMENT_PARSE_COMPLETE, 22 JBIG2_SEGMENT_PAUSED, 23 JBIG2_SEGMENT_ERROR 24 }; 25 26 enum JBig2_ResultType { 27 JBIG2_VOID_POINTER = 0, 28 JBIG2_IMAGE_POINTER, 29 JBIG2_SYMBOL_DICT_POINTER, 30 JBIG2_PATTERN_DICT_POINTER, 31 JBIG2_HUFFMAN_TABLE_POINTER 32 }; 33 34 class CJBig2_Segment { 35 public: 36 CJBig2_Segment(); 37 ~CJBig2_Segment(); 38 39 uint32_t m_dwNumber; 40 union { 41 struct { 42 uint8_t type : 6; 43 uint8_t page_association_size : 1; 44 uint8_t deferred_non_retain : 1; 45 } s; 46 uint8_t c; 47 } m_cFlags; 48 int32_t m_nReferred_to_segment_count; 49 std::vector<uint32_t> m_Referred_to_segment_numbers; 50 uint32_t m_dwPage_association; 51 uint32_t m_dwData_length; 52 53 uint32_t m_dwHeader_Length; 54 uint32_t m_dwObjNum; 55 uint32_t m_dwDataOffset; 56 JBig2_SegmentState m_State; 57 JBig2_ResultType m_nResultType; 58 std::unique_ptr<CJBig2_SymbolDict> m_SymbolDict; 59 std::unique_ptr<CJBig2_PatternDict> m_PatternDict; 60 std::unique_ptr<CJBig2_Image> m_Image; 61 std::unique_ptr<CJBig2_HuffmanTable> m_HuffmanTable; 62 }; 63 64 #endif // CORE_FXCODEC_JBIG2_JBIG2_SEGMENT_H_ 65