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| author | Lei Zhang <thestig@chromium.org> | 2015-11-19 23:12:02 -0800 |
|---|---|---|
| committer | Lei Zhang <thestig@chromium.org> | 2015-11-19 23:12:02 -0800 |
| commit | 0c8e6c1f39f20985a3efb17292e46c476194183a (patch) | |
| tree | ddc4b65edc67d0bf2e1a55e02caa5c3387f6d232 /core/include | |
| parent | 126ba519bdd489ec6c285d1410dcae773e8ef673 (diff) | |
| download | pdfium-0c8e6c1f39f20985a3efb17292e46c476194183a.tar.xz | |
Cache object numbers in CPDF_Parser::ParseIndirectObject().
R=jun_fang@foxitsoftware.com, tsepez@chromium.org
Review URL: https://codereview.chromium.org/1458633004 .
Diffstat (limited to 'core/include')
| -rw-r--r-- | core/include/fpdfapi/fpdf_parser.h | 17 |
1 files changed, 15 insertions, 2 deletions
diff --git a/core/include/fpdfapi/fpdf_parser.h b/core/include/fpdfapi/fpdf_parser.h index 174430e440..efb955be21 100644 --- a/core/include/fpdfapi/fpdf_parser.h +++ b/core/include/fpdfapi/fpdf_parser.h @@ -7,6 +7,8 @@ #ifndef CORE_INCLUDE_FPDFAPI_FPDF_PARSER_H_ #define CORE_INCLUDE_FPDFAPI_FPDF_PARSER_H_ +#include <map> + #include "core/include/fxcrt/fx_system.h" #include "fpdf_objects.h" #include "third_party/base/nonstd_unique_ptr.h" @@ -498,8 +500,6 @@ class CPDF_Parser { FX_DWORD LoadLinearizedMainXRefTable(); - CFX_MapPtrToPtr m_ObjectStreamMap; - CPDF_StreamAcc* GetObjectStream(FX_DWORD number); FX_BOOL IsLinearizedFile(IFX_FileRead* pFileAccess, FX_DWORD offset); @@ -543,9 +543,22 @@ class CPDF_Parser { FX_DWORD m_dwFirstPageNo; FX_DWORD m_dwXrefStartObjNum; + + // A map of object numbers to indirect streams. Map owns the streams. + CFX_MapPtrToPtr m_ObjectStreamMap; + + // Mapping of object numbers to offsets. The offsets are relative to the first + // object in the stream. + using StreamObjectCache = std::map<FX_DWORD, FX_DWORD>; + + // Mapping of streams to their object caches. This is valid as long as the + // streams in |m_ObjectStreamMap| are valid. + std::map<CPDF_StreamAcc*, StreamObjectCache> m_ObjCache; + friend class CPDF_Creator; friend class CPDF_DataAvail; }; + #define FXCIPHER_NONE 0 #define FXCIPHER_RC4 1 #define FXCIPHER_AES 2 |