Store the address of the page data map's value for proper referencing.

core/src/fpdfapi/fpdf_page/pageint.h

 // Copyright 2014 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 _PAGEINT_H_
 #define _PAGEINT_H_
 
 #include "../../../include/fpdfapi/fpdf_pageobj.h"
@@ skipping 413 matching lines @@
     void                        ReleaseColorSpace(CPDF_Object* pColorSpace);
     CPDF_Pattern*               GetPattern(CPDF_Object* pPatternObj, FX_BOOL bShading, const CFX_AffineMatrix* matrix);
     void                        ReleasePattern(CPDF_Object* pPatternObj);
     CPDF_Image*                 GetImage(CPDF_Object* pImageStream);
     void                        ReleaseImage(CPDF_Object* pImageStream);
     CPDF_IccProfile*            GetIccProfile(CPDF_Stream* pIccProfileStream);
     void                        ReleaseIccProfile(CPDF_Stream* pIccProfileStream, CPDF_IccProfile* pIccProfile);
     CPDF_StreamAcc*             GetFontFileStreamAcc(CPDF_Stream* pFontStream);
     void                        ReleaseFontFileStreamAcc(CPDF_Stream* pFontStream, FX_BOOL bForce = FALSE);
     FX_BOOL                     IsForceClear() const {return m_bForceClear;}
+    CPDF_ColorSpace**           FindColorSpacePtr(CPDF_Object* pCSObj);

[Tom Sepez, 2014/10/14 20:39:31]

nit:  are these const methods?  Is the arg a const CPDF_Object* ?

[Bo Xu, 2014/10/14 20:53:33]

They are const methods, I will put that in.

+    CPDF_Pattern**              FindPatternPtr(CPDF_Object* pPatternObj);
 
     CPDF_Document*              m_pPDFDoc;
     CPDF_FontMap                m_FontMap;
     CPDF_ColorSpaceMap          m_ColorSpaceMap;
     CPDF_PatternMap             m_PatternMap;
     CPDF_ImageMap               m_ImageMap;
     CPDF_IccProfileMap          m_IccProfileMap;
     CFX_MapByteStringToPtr      m_HashProfileMap;
     CPDF_FontFileMap            m_FontFileMap;
     FX_BOOL                     m_bForceClear;
@@ skipping 46 matching lines @@
 public:
     CPDF_PatternCS();
     ~CPDF_PatternCS();
     virtual FX_BOOL             v_Load(CPDF_Document* pDoc, CPDF_Array* pArray);
     virtual FX_BOOL             GetRGB(FX_FLOAT* pBuf, FX_FLOAT& R, FX_FLOAT& G, FX_FLOAT& B) const;
     virtual CPDF_ColorSpace*    GetBaseCS() const
     {
         return m_pBaseCS;
     }
     CPDF_ColorSpace*    m_pBaseCS;
+    CPDF_ColorSpace**   m_pPtrBaseCS;
 };
 #define MAX_PAGE_OBJECTS_UNIFY_NAMING                           4096
 class CPDF_ResourceNaming : public CFX_Object
 {
 public:
     struct _NamingState : public CFX_Object {
         CFX_ByteString  m_Prefix;
         int                             m_nIndex;
     };
     ~CPDF_ResourceNaming();
     CFX_ByteString              GetName(const CPDF_Dictionary* pResList, FX_LPCSTR szType);
 protected:
     CFX_MapByteStringToPtr      m_NamingCache;
 };
 
 #endif  // _PAGEINT_H_