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| 1 // Copyright 2014 PDFium Authors. All rights reserved. | 1 // Copyright 2014 PDFium Authors. All rights reserved. |
| 2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
| 3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
| 4 | 4 |
| 5 // Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com | 5 // Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com |
| 6 | 6 |
| 7 #ifndef _JBIG2_HUFFMAN_TABLE_H_ | 7 #ifndef CORE_SRC_FXCODEC_JBIG2_JBIG2_HUFFMANTABLE_H_ |
| 8 #define _JBIG2_HUFFMAN_TABLE_H_ | 8 #define CORE_SRC_FXCODEC_JBIG2_JBIG2_HUFFMANTABLE_H_ |
| 9 | 9 |
| 10 #include "JBig2_HuffmanTable_Standard.h" | 10 #include <vector> |
| 11 #include "JBig2_BitStream.h" | 11 |
| 12 #include "core/include/fxcrt/fx_system.h" | |
| 13 | |
| 14 class CJBig2_BitStream; | |
| 15 struct JBig2TableLine; | |
| 12 | 16 |
| 13 class CJBig2_HuffmanTable { | 17 class CJBig2_HuffmanTable { |
| 14 public: | 18 public: |
| 15 CJBig2_HuffmanTable(const JBig2TableLine* pTable, int nLines, FX_BOOL bHTOOB); | 19 CJBig2_HuffmanTable(const JBig2TableLine* pTable, |
| 20 FX_DWORD nLines, | |
| 21 bool bHTOOB); | |
| 16 | 22 |
| 17 explicit CJBig2_HuffmanTable(CJBig2_BitStream* pStream); | 23 explicit CJBig2_HuffmanTable(CJBig2_BitStream* pStream); |
| 18 | 24 |
| 19 ~CJBig2_HuffmanTable(); | 25 ~CJBig2_HuffmanTable(); |
| 20 | 26 |
| 21 int parseFromStandardTable(const JBig2TableLine* pTable, | 27 bool IsHTOOB() const { return HTOOB; } |
| 22 int nLines, | 28 FX_DWORD Size() const { return NTEMP; } |
| 23 FX_BOOL bHTOOB); | 29 const std::vector<int>& GetCODES() const { return CODES; } |
| 24 | 30 const std::vector<int>& GetPREFLEN() const { return PREFLEN; } |
| 25 int parseFromCodedBuffer(CJBig2_BitStream* pStream); | 31 const std::vector<int>& GetRANGELEN() const { return RANGELEN; } |
| 26 | 32 const std::vector<int>& GetRANGELOW() const { return RANGELOW; } |
| 27 FX_BOOL isOK() const { return m_bOK; } | 33 bool IsOK() const { return m_bOK; } |
| 28 | 34 |
| 29 private: | 35 private: |
| 30 void init(); | 36 void ParseFromStandardTable(const JBig2TableLine* pTable); |
| 37 bool ParseFromCodedBuffer(CJBig2_BitStream* pStream); | |
| 38 void InitCodes(); | |
| 39 void ExtendBuffers(); | |
| 31 | 40 |
| 32 FX_BOOL HTOOB; | 41 bool HTOOB; |
| 33 FX_DWORD NTEMP; | 42 FX_DWORD NTEMP; |
| 34 int* CODES; | 43 std::vector<int> CODES; |
| 35 int* PREFLEN; | 44 std::vector<int> PREFLEN; |
| 36 int* RANGELEN; | 45 std::vector<int> RANGELEN; |
| 37 int* RANGELOW; | 46 std::vector<int> RANGELOW; |
| 38 FX_BOOL m_bOK; | 47 bool m_bOK; |
|
Tom Sepez
2015/12/18 23:48:54
nit: probably packs tighter if this is adjacent to
Lei Zhang
2015/12/19 00:17:22
Done.
| |
| 39 friend class CJBig2_HuffmanDecoder; | |
| 40 }; | 48 }; |
| 41 #endif | 49 |
| 50 #endif // CORE_SRC_FXCODEC_JBIG2_JBIG2_HUFFMANTABLE_H_ | |
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