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 _JBIG2_SEGMENT_H_ 8 #define _JBIG2_SEGMENT_H_ 9 #include "JBig2_Define.h" 10 #include "JBig2_SymbolDict.h" 11 #include "JBig2_PatternDict.h" 12 #include "JBig2_Module.h" 13 #include "JBig2_HuffmanTable.h" 14 #define JBIG2_GET_INT32(buf) (((buf)[0]<<24) | ((buf)[1]<<16) | ((buf)[2]<<8) | (buf)[3]) 15 #define JBIG2_GET_INT16(buf) (((buf)[0]<<8) | (buf)[1]) 16 typedef enum { 17 JBIG2_SEGMENT_HEADER_UNPARSED, 18 JBIG2_SEGMENT_DATA_UNPARSED, 19 JBIG2_SEGMENT_PARSE_COMPLETE, 20 JBIG2_SEGMENT_PAUSED, 21 JBIG2_SEGMENT_ERROR 22 } JBig2_SegmentState; 23 typedef enum { 24 JBIG2_VOID_POINTER = 0, 25 JBIG2_IMAGE_POINTER, 26 JBIG2_SYMBOL_DICT_POINTER, 27 JBIG2_PATTERN_DICT_POINTER, 28 JBIG2_HUFFMAN_TABLE_POINTER 29 } JBig2_ResultType; 30 class CJBig2_Segment : public CJBig2_Object 31 { 32 public: 33 34 CJBig2_Segment(); 35 36 ~CJBig2_Segment(); 37 38 void init(); 39 40 void clean(); 41 public: 42 FX_DWORD m_dwNumber; 43 union { 44 struct { 45 FX_BYTE type : 6; 46 FX_BYTE page_association_size : 1; 47 FX_BYTE deferred_non_retain : 1; 48 } s; 49 FX_BYTE c; 50 } m_cFlags; 51 FX_INT32 m_nReferred_to_segment_count; 52 FX_DWORD * m_pReferred_to_segment_numbers; 53 FX_DWORD m_dwPage_association; 54 FX_DWORD m_dwData_length; 55 56 FX_DWORD m_dwHeader_Length; 57 FX_BYTE *m_pData; 58 JBig2_SegmentState m_State; 59 JBig2_ResultType m_nResultType; 60 union { 61 CJBig2_SymbolDict *sd; 62 CJBig2_PatternDict *pd; 63 CJBig2_Image *im; 64 CJBig2_HuffmanTable *ht; 65 FX_LPVOID vd; 66 } m_Result; 67 }; 68 #endif 69
