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author | dsinclair <dsinclair@chromium.org> | 2016-10-04 11:55:50 -0700 |
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committer | Commit bot <commit-bot@chromium.org> | 2016-10-04 11:55:51 -0700 |
commit | 488b7ad845d6de212d89cd957303b294ecfa5922 (patch) | |
tree | adfdd2327724bd3597a1a7614bbe29a01a0c8dc0 /core/fpdfapi/parser/cpdf_hint_tables.h | |
parent | 41872fa5ac7448a50f66ad56d7bde8d1aa77db4b (diff) | |
download | pdfium-488b7ad845d6de212d89cd957303b294ecfa5922.tar.xz |
Move core/fpdfapi/fpdf_parser to core/fpdfapi/parser
BUG=pdfium:603
Review-Url: https://codereview.chromium.org/2392603004
Diffstat (limited to 'core/fpdfapi/parser/cpdf_hint_tables.h')
-rw-r--r-- | core/fpdfapi/parser/cpdf_hint_tables.h | 71 |
1 files changed, 71 insertions, 0 deletions
diff --git a/core/fpdfapi/parser/cpdf_hint_tables.h b/core/fpdfapi/parser/cpdf_hint_tables.h new file mode 100644 index 0000000000..84f48cf41f --- /dev/null +++ b/core/fpdfapi/parser/cpdf_hint_tables.h @@ -0,0 +1,71 @@ +// Copyright 2016 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 CORE_FPDFAPI_PARSER_CPDF_HINT_TABLES_H_ +#define CORE_FPDFAPI_PARSER_CPDF_HINT_TABLES_H_ + +#include <vector> + +#include "core/fpdfapi/parser/cpdf_data_avail.h" +#include "core/fxcrt/fx_basic.h" +#include "core/fxcrt/fx_stream.h" + +class CFX_BitStream; +class CPDF_Dictionary; +class CPDF_Stream; + +class CPDF_HintTables { + public: + CPDF_HintTables(CPDF_DataAvail* pDataAvail, CPDF_Dictionary* pLinearized); + virtual ~CPDF_HintTables(); + + bool GetPagePos(uint32_t index, + FX_FILESIZE* szPageStartPos, + FX_FILESIZE* szPageLength, + uint32_t* dwObjNum); + + CPDF_DataAvail::DocAvailStatus CheckPage( + uint32_t index, + CPDF_DataAvail::DownloadHints* pHints); + + bool LoadHintStream(CPDF_Stream* pHintStream); + + protected: + bool ReadPageHintTable(CFX_BitStream* hStream); + bool ReadSharedObjHintTable(CFX_BitStream* hStream, uint32_t offset); + + private: + // Tests can override. + virtual int GetEndOfFirstPageOffset() const; + virtual int GetNumberOfPages() const; + virtual int GetFirstPageObjectNumber() const; + virtual int GetFirstPageNumber() const; + virtual int ReadPrimaryHintStreamOffset() const; + virtual int ReadPrimaryHintStreamLength() const; + + // Helper for the ReadPrimaryHintStream methods above. + int ReadPrimaryHintStream(int index) const; + + uint32_t GetItemLength(uint32_t index, + const std::vector<FX_FILESIZE>& szArray); + + // Owner, outlives this object. + CPDF_DataAvail* const m_pDataAvail; + + // Owned by |m_pDataAvail|. + CPDF_Dictionary* const m_pLinearizedDict; + + uint32_t m_nFirstPageSharedObjs; + FX_FILESIZE m_szFirstPageObjOffset; + std::vector<uint32_t> m_dwDeltaNObjsArray; + std::vector<uint32_t> m_dwNSharedObjsArray; + std::vector<uint32_t> m_dwSharedObjNumArray; + std::vector<uint32_t> m_dwIdentifierArray; + std::vector<FX_FILESIZE> m_szPageOffsetArray; + std::vector<FX_FILESIZE> m_szSharedObjOffsetArray; +}; + +#endif // CORE_FPDFAPI_PARSER_CPDF_HINT_TABLES_H_ |