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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_SRC_FXCODEC_JBIG2_JBIG2_SEGMENT_H_ | |
8 #define CORE_SRC_FXCODEC_JBIG2_JBIG2_SEGMENT_H_ | |
9 | |
10 #include "core/src/fxcodec/jbig2/JBig2_Define.h" | |
11 #include "core/src/fxcodec/jbig2/JBig2_HuffmanTable.h" | |
12 #include "core/src/fxcodec/jbig2/JBig2_PatternDict.h" | |
13 #include "core/src/fxcodec/jbig2/JBig2_SymbolDict.h" | |
14 | |
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]) | |
18 typedef enum { | |
19 JBIG2_SEGMENT_HEADER_UNPARSED, | |
20 JBIG2_SEGMENT_DATA_UNPARSED, | |
21 JBIG2_SEGMENT_PARSE_COMPLETE, | |
22 JBIG2_SEGMENT_PAUSED, | |
23 JBIG2_SEGMENT_ERROR | |
24 } JBig2_SegmentState; | |
25 typedef enum { | |
26 JBIG2_VOID_POINTER = 0, | |
27 JBIG2_IMAGE_POINTER, | |
28 JBIG2_SYMBOL_DICT_POINTER, | |
29 JBIG2_PATTERN_DICT_POINTER, | |
30 JBIG2_HUFFMAN_TABLE_POINTER | |
31 } JBig2_ResultType; | |
32 class CJBig2_Segment { | |
33 public: | |
34 CJBig2_Segment(); | |
35 | |
36 ~CJBig2_Segment(); | |
37 | |
38 FX_DWORD m_dwNumber; | |
39 union { | |
40 struct { | |
41 uint8_t type : 6; | |
42 uint8_t page_association_size : 1; | |
43 uint8_t deferred_non_retain : 1; | |
44 } s; | |
45 uint8_t c; | |
46 } m_cFlags; | |
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; | |
51 | |
52 FX_DWORD m_dwHeader_Length; | |
53 FX_DWORD m_dwObjNum; | |
54 FX_DWORD m_dwDataOffset; | |
55 JBig2_SegmentState m_State; | |
56 JBig2_ResultType m_nResultType; | |
57 union { | |
58 CJBig2_SymbolDict* sd; | |
59 CJBig2_PatternDict* pd; | |
60 CJBig2_Image* im; | |
61 CJBig2_HuffmanTable* ht; | |
62 void* vd; | |
63 } m_Result; | |
64 }; | |
65 | |
66 #endif // CORE_SRC_FXCODEC_JBIG2_JBIG2_SEGMENT_H_ | |
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