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.
5 // Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com
7 #ifndef _JBIG2_SEGMENT_H_
8 #define _JBIG2_SEGMENT_H_
10 #include "JBig2_Define.h"
11 #include "JBig2_HuffmanTable.h"
12 #include "JBig2_PatternDict.h"
13 #include "JBig2_SymbolDict.h"
15 #define JBIG2_GET_INT32(buf) \
16 (((buf)[0] << 24) | ((buf)[1] << 16) | ((buf)[2] << 8) | (buf)[3])
17 #define JBIG2_GET_INT16(buf) (((buf)[0] << 8) | (buf)[1])
19 JBIG2_SEGMENT_HEADER_UNPARSED,
20 JBIG2_SEGMENT_DATA_UNPARSED,
21 JBIG2_SEGMENT_PARSE_COMPLETE,
26 JBIG2_VOID_POINTER = 0,
28 JBIG2_SYMBOL_DICT_POINTER,
29 JBIG2_PATTERN_DICT_POINTER,
30 JBIG2_HUFFMAN_TABLE_POINTER
32 class CJBig2_Segment {
42 uint8_t page_association_size : 1;
43 uint8_t deferred_non_retain : 1;
47 int32_t m_nReferred_to_segment_count;
48 FX_DWORD* m_pReferred_to_segment_numbers;
49 FX_DWORD m_dwPage_association;
50 FX_DWORD m_dwData_length;
52 FX_DWORD m_dwHeader_Length;
54 FX_DWORD m_dwDataOffset;
55 JBig2_SegmentState m_State;
56 JBig2_ResultType m_nResultType;
58 CJBig2_SymbolDict* sd;
59 CJBig2_PatternDict* pd;
61 CJBig2_HuffmanTable* ht;