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// 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 _JBIG2_SEGMENT_H_
#define _JBIG2_SEGMENT_H_
#include "JBig2_Define.h"
#include "JBig2_SymbolDict.h"
#include "JBig2_PatternDict.h"
#include "JBig2_Module.h"
#include "JBig2_HuffmanTable.h"
#define JBIG2_GET_INT32(buf) (((buf)[0]<<24) | ((buf)[1]<<16) | ((buf)[2]<<8) | (buf)[3])
#define JBIG2_GET_INT16(buf) (((buf)[0]<<8) | (buf)[1])
typedef enum {
JBIG2_SEGMENT_HEADER_UNPARSED,
JBIG2_SEGMENT_DATA_UNPARSED,
JBIG2_SEGMENT_PARSE_COMPLETE,
JBIG2_SEGMENT_PAUSED,
JBIG2_SEGMENT_ERROR
} JBig2_SegmentState;
typedef enum {
JBIG2_VOID_POINTER = 0,
JBIG2_IMAGE_POINTER,
JBIG2_SYMBOL_DICT_POINTER,
JBIG2_PATTERN_DICT_POINTER,
JBIG2_HUFFMAN_TABLE_POINTER
} JBig2_ResultType;
class CJBig2_Segment : public CJBig2_Object
{
public:
CJBig2_Segment();
~CJBig2_Segment();
void init();
void clean();
public:
FX_DWORD m_dwNumber;
union {
struct {
FX_BYTE type : 6;
FX_BYTE page_association_size : 1;
FX_BYTE deferred_non_retain : 1;
} s;
FX_BYTE c;
} m_cFlags;
FX_INT32 m_nReferred_to_segment_count;
FX_DWORD * m_pReferred_to_segment_numbers;
FX_DWORD m_dwPage_association;
FX_DWORD m_dwData_length;
FX_DWORD m_dwHeader_Length;
FX_BYTE *m_pData;
JBig2_SegmentState m_State;
JBig2_ResultType m_nResultType;
union {
CJBig2_SymbolDict *sd;
CJBig2_PatternDict *pd;
CJBig2_Image *im;
CJBig2_HuffmanTable *ht;
FX_LPVOID vd;
} m_Result;
};
#endif
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