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| author | Bo Xu <bo_xu@foxitsoftware.com> | 2014-10-14 17:10:06 -0700 |
|---|---|---|
| committer | Bo Xu <bo_xu@foxitsoftware.com> | 2014-10-14 17:10:06 -0700 |
| commit | e1177425a656f915657f948d965193a019702a52 (patch) | |
| tree | b3213672a9af719ffe6b9b519a828d587886f289 /core/include/fpdfapi/fpdf_resource.h | |
| parent | 35d720aff01c5ea778c16ac1e31c56f68490f10b (diff) | |
| download | pdfium-e1177425a656f915657f948d965193a019702a52.tar.xz | |
Store the address of the page data map's value for proper referencing.
CPDF_Pattern objects are counted and maintained in m_PatternedMap.
When a CPDF_Pattern object "pattern" is deleted, it's address is marked as NULL in m_PatternMap.
This patch stores the address of CPDF_Pattern's adderss in all objects that references "pattern",
to ensure valid referencing after deletion.
BUG=416319, 419976, 418392
R=tsepez@chromium.org
Review URL: https://codereview.chromium.org/656753002
Diffstat (limited to 'core/include/fpdfapi/fpdf_resource.h')
| -rw-r--r-- | core/include/fpdfapi/fpdf_resource.h | 25 |
1 files changed, 24 insertions, 1 deletions
diff --git a/core/include/fpdfapi/fpdf_resource.h b/core/include/fpdfapi/fpdf_resource.h index 7bad01501a..54e1c97ee7 100644 --- a/core/include/fpdfapi/fpdf_resource.h +++ b/core/include/fpdfapi/fpdf_resource.h @@ -38,6 +38,28 @@ class CFX_DIBitmap; typedef struct FT_FaceRec_* FXFT_Face; class CFX_CTTGSUBTable; class CPDF_Page; + +template <class ObjClass> class CPDF_CountedObject : public CFX_Object +{ +public: + ObjClass m_Obj; + FX_DWORD m_nCount; +}; +typedef CPDF_CountedObject<CPDF_Font*> CPDF_CountedFont; +typedef CPDF_CountedObject<CPDF_ColorSpace*> CPDF_CountedColorSpace; +typedef CPDF_CountedObject<CPDF_Pattern*> CPDF_CountedPattern; +typedef CPDF_CountedObject<CPDF_Image*> CPDF_CountedImage; +typedef CPDF_CountedObject<CPDF_IccProfile*> CPDF_CountedICCProfile; +typedef CPDF_CountedObject<CPDF_StreamAcc*> CPDF_CountedStreamAcc; + + +typedef CFX_MapPtrTemplate<CPDF_Dictionary*, CPDF_CountedFont*> CPDF_FontMap; +typedef CFX_MapPtrTemplate<CPDF_Object*, CPDF_CountedColorSpace*> CPDF_ColorSpaceMap; +typedef CFX_MapPtrTemplate<CPDF_Object*, CPDF_CountedPattern*> CPDF_PatternMap; +typedef CFX_MapPtrTemplate<FX_DWORD, CPDF_CountedImage*> CPDF_ImageMap; +typedef CFX_MapPtrTemplate<CPDF_Stream*, CPDF_CountedICCProfile*> CPDF_IccProfileMap; +typedef CFX_MapPtrTemplate<CPDF_Stream*, CPDF_CountedStreamAcc*> CPDF_FontFileMap; + #define PDFFONT_TYPE1 1 #define PDFFONT_TRUETYPE 2 #define PDFFONT_TYPE3 3 @@ -790,8 +812,9 @@ public: int m_ShadingType; - CPDF_ColorSpace* m_pCS; + CPDF_ColorSpace* m_pCS; // Still keep m_pCS as some CPDF_ColorSpace (name object) are not managed as counted objects. Refer to CPDF_DocPageData::GetColorSpace. + CPDF_CountedColorSpace* m_pCountedCS; CPDF_Function* m_pFunctions[4]; |