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1 // Copyright 2016 PDFium Authors. All rights reserved. | 1 // Copyright 2016 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 CORE_FPDFAPI_FPDF_PARSER_CPDF_HINT_TABLES_H_ | 7 #ifndef CORE_FPDFAPI_FPDF_PARSER_CPDF_HINT_TABLES_H_ |
8 #define CORE_FPDFAPI_FPDF_PARSER_CPDF_HINT_TABLES_H_ | 8 #define CORE_FPDFAPI_FPDF_PARSER_CPDF_HINT_TABLES_H_ |
9 | 9 |
10 #include <vector> | 10 #include <vector> |
11 | 11 |
12 #include "core/fpdfapi/fpdf_parser/include/ipdf_data_avail.h" | 12 #include "core/fpdfapi/fpdf_parser/include/cpdf_data_avail.h" |
13 #include "core/fxcrt/include/fx_basic.h" | 13 #include "core/fxcrt/include/fx_basic.h" |
14 #include "core/fxcrt/include/fx_stream.h" | 14 #include "core/fxcrt/include/fx_stream.h" |
15 | 15 |
16 class CFX_BitStream; | 16 class CFX_BitStream; |
17 class CPDF_DataAvail; | |
18 class CPDF_Dictionary; | 17 class CPDF_Dictionary; |
19 class CPDF_Stream; | 18 class CPDF_Stream; |
20 | 19 |
21 class CPDF_HintTables { | 20 class CPDF_HintTables { |
22 public: | 21 public: |
23 CPDF_HintTables(CPDF_DataAvail* pDataAvail, CPDF_Dictionary* pLinearized); | 22 CPDF_HintTables(CPDF_DataAvail* pDataAvail, CPDF_Dictionary* pLinearized); |
24 ~CPDF_HintTables(); | 23 ~CPDF_HintTables(); |
25 | 24 |
26 FX_BOOL GetPagePos(int index, | 25 FX_BOOL GetPagePos(int index, |
27 FX_FILESIZE& szPageStartPos, | 26 FX_FILESIZE& szPageStartPos, |
28 FX_FILESIZE& szPageLength, | 27 FX_FILESIZE& szPageLength, |
29 uint32_t& dwObjNum); | 28 uint32_t& dwObjNum); |
30 | 29 |
31 IPDF_DataAvail::DocAvailStatus CheckPage( | 30 CPDF_DataAvail::DocAvailStatus CheckPage( |
32 int index, | 31 int index, |
33 IPDF_DataAvail::DownloadHints* pHints); | 32 CPDF_DataAvail::DownloadHints* pHints); |
34 | 33 |
35 FX_BOOL LoadHintStream(CPDF_Stream* pHintStream); | 34 FX_BOOL LoadHintStream(CPDF_Stream* pHintStream); |
36 | 35 |
37 protected: | 36 protected: |
38 FX_BOOL ReadPageHintTable(CFX_BitStream* hStream); | 37 FX_BOOL ReadPageHintTable(CFX_BitStream* hStream); |
39 FX_BOOL ReadSharedObjHintTable(CFX_BitStream* hStream, uint32_t offset); | 38 FX_BOOL ReadSharedObjHintTable(CFX_BitStream* hStream, uint32_t offset); |
40 uint32_t GetItemLength(int index, const std::vector<FX_FILESIZE>& szArray); | 39 uint32_t GetItemLength(int index, const std::vector<FX_FILESIZE>& szArray); |
41 | 40 |
42 private: | 41 private: |
43 int ReadPrimaryHintStreamOffset() const; | 42 int ReadPrimaryHintStreamOffset() const; |
44 int ReadPrimaryHintStreamLength() const; | 43 int ReadPrimaryHintStreamLength() const; |
45 | 44 |
46 // Owner, outlives this object. | 45 // Owner, outlives this object. |
47 CPDF_DataAvail* const m_pDataAvail; | 46 CPDF_DataAvail* const m_pDataAvail; |
48 | 47 |
49 // Owned by |m_pDataAvail|. | 48 // Owned by |m_pDataAvail|. |
50 CPDF_Dictionary* const m_pLinearizedDict; | 49 CPDF_Dictionary* const m_pLinearizedDict; |
51 | 50 |
52 uint32_t m_nFirstPageSharedObjs; | 51 uint32_t m_nFirstPageSharedObjs; |
53 FX_FILESIZE m_szFirstPageObjOffset; | 52 FX_FILESIZE m_szFirstPageObjOffset; |
54 CFX_ArrayTemplate<uint32_t> m_dwDeltaNObjsArray; | 53 CFX_ArrayTemplate<uint32_t> m_dwDeltaNObjsArray; |
55 CFX_ArrayTemplate<uint32_t> m_dwNSharedObjsArray; | 54 CFX_ArrayTemplate<uint32_t> m_dwNSharedObjsArray; |
56 CFX_ArrayTemplate<uint32_t> m_dwSharedObjNumArray; | 55 CFX_ArrayTemplate<uint32_t> m_dwSharedObjNumArray; |
57 CFX_ArrayTemplate<uint32_t> m_dwIdentifierArray; | 56 CFX_ArrayTemplate<uint32_t> m_dwIdentifierArray; |
58 std::vector<FX_FILESIZE> m_szPageOffsetArray; | 57 std::vector<FX_FILESIZE> m_szPageOffsetArray; |
59 std::vector<FX_FILESIZE> m_szSharedObjOffsetArray; | 58 std::vector<FX_FILESIZE> m_szSharedObjOffsetArray; |
60 }; | 59 }; |
61 | 60 |
62 #endif // CORE_FPDFAPI_FPDF_PARSER_CPDF_HINT_TABLES_H_ | 61 #endif // CORE_FPDFAPI_FPDF_PARSER_CPDF_HINT_TABLES_H_ |
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