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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_HUFFMANTABLE_H_ | |
8 #define CORE_SRC_FXCODEC_JBIG2_JBIG2_HUFFMANTABLE_H_ | |
9 | |
10 #include <vector> | |
11 | |
12 #include "core/include/fxcrt/fx_system.h" | |
13 | |
14 class CJBig2_BitStream; | |
15 struct JBig2TableLine; | |
16 | |
17 class CJBig2_HuffmanTable { | |
18 public: | |
19 CJBig2_HuffmanTable(const JBig2TableLine* pTable, | |
20 FX_DWORD nLines, | |
21 bool bHTOOB); | |
22 | |
23 explicit CJBig2_HuffmanTable(CJBig2_BitStream* pStream); | |
24 | |
25 ~CJBig2_HuffmanTable(); | |
26 | |
27 bool IsHTOOB() const { return HTOOB; } | |
28 FX_DWORD Size() const { return NTEMP; } | |
29 const std::vector<int>& GetCODES() const { return CODES; } | |
30 const std::vector<int>& GetPREFLEN() const { return PREFLEN; } | |
31 const std::vector<int>& GetRANGELEN() const { return RANGELEN; } | |
32 const std::vector<int>& GetRANGELOW() const { return RANGELOW; } | |
33 bool IsOK() const { return m_bOK; } | |
34 | |
35 private: | |
36 void ParseFromStandardTable(const JBig2TableLine* pTable); | |
37 bool ParseFromCodedBuffer(CJBig2_BitStream* pStream); | |
38 void InitCodes(); | |
39 void ExtendBuffers(bool increment); | |
40 | |
41 bool m_bOK; | |
42 bool HTOOB; | |
43 FX_DWORD NTEMP; | |
44 std::vector<int> CODES; | |
45 std::vector<int> PREFLEN; | |
46 std::vector<int> RANGELEN; | |
47 std::vector<int> RANGELOW; | |
48 }; | |
49 | |
50 #endif // CORE_SRC_FXCODEC_JBIG2_JBIG2_HUFFMANTABLE_H_ | |
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