Merge to XFA: Fix some -Wmaybe-uninitialized errors.

core/src/fpdfapi/fpdf_render/render_int.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 CORE_SRC_FPDFAPI_FPDF_RENDER_RENDER_INT_H_
 #define CORE_SRC_FPDFAPI_FPDF_RENDER_RENDER_INT_H_
 
 #include <map>
@@ skipping 509 matching lines @@
                           int dest_width,
                           FX_BOOL bFlipX,
                           int clip_left,
                           int clip_width) const override;
   void SetDownSampleSize(int dest_width, int dest_height) const override;
 
   CFX_DIBitmap* GetBitmap() const;
   void ReleaseBitmap(CFX_DIBitmap*) const;
   void ClearImageData();
 
- public:
   int StartLoadDIBSource(CPDF_Document* pDoc,
                          const CPDF_Stream* pStream,
                          FX_BOOL bHasMask,
                          CPDF_Dictionary* pFormResources,
                          CPDF_Dictionary* pPageResources,
                          FX_BOOL bStdCS = FALSE,
                          FX_DWORD GroupFamily = 0,
                          FX_BOOL bLoadMask = FALSE);
   int ContinueLoadDIBSource(IFX_Pause* pPause);
   int StratLoadMask();
   int StartLoadMaskDIB();
   int ContinueLoadMaskDIB(IFX_Pause* pPause);
   int ContinueToLoadMask();
   CPDF_DIBSource* DetachMask();
   CPDF_DIBSource* m_pMask;
   FX_DWORD m_MatteColor;
   void* m_pJbig2Context;
   CPDF_StreamAcc* m_pGlobalStream;
   FX_BOOL m_bStdCS;
   int m_Status;
   CPDF_Object* m_pMaskStream;
   FX_BOOL m_bHasMask;
 
- protected:
+ private:
   FX_BOOL LoadColorInfo(CPDF_Dictionary* pFormResources,
                         CPDF_Dictionary* pPageResources);
   DIB_COMP_DATA* GetDecodeAndMaskArray(FX_BOOL& bDefaultDecode,
                                        FX_BOOL& bColorKey);
   CPDF_DIBSource* LoadMask(FX_DWORD& MatteColor);
   CPDF_DIBSource* LoadMaskDIB(CPDF_Stream* pMask);
   void LoadJpxBitmap();
   void LoadPalette();
   int CreateDecoder();
   void TranslateScanline24bpp(uint8_t* dest_scan,
                               const uint8_t* src_scan) const;
   void ValidateDictParam();
+  void DownSampleScanline1Bit(int orig_Bpp,
+                              int dest_Bpp,
+                              FX_DWORD src_width,
+                              const uint8_t* pSrcLine,
+                              uint8_t* dest_scan,
+                              int dest_width,
+                              FX_BOOL bFlipX,
+                              int clip_left,
+                              int clip_width) const;
+  void DownSampleScanline8Bit(int orig_Bpp,
+                              int dest_Bpp,
+                              FX_DWORD src_width,
+                              const uint8_t* pSrcLine,
+                              uint8_t* dest_scan,
+                              int dest_width,
+                              FX_BOOL bFlipX,
+                              int clip_left,
+                              int clip_width) const;
+  void DownSampleScanline32Bit(int orig_Bpp,
+                               int dest_Bpp,
+                               FX_DWORD src_width,
+                               const uint8_t* pSrcLine,
+                               uint8_t* dest_scan,
+                               int dest_width,
+                               FX_BOOL bFlipX,
+                               int clip_left,
+                               int clip_width) const;
+  FX_BOOL TransMask() const;
+
   CPDF_Document* m_pDocument;
   const CPDF_Stream* m_pStream;
   CPDF_StreamAcc* m_pStreamAcc;
   const CPDF_Dictionary* m_pDict;
   CPDF_ColorSpace* m_pColorSpace;
   FX_DWORD m_Family;
   FX_DWORD m_bpc;
   FX_DWORD m_bpc_orig;
   FX_DWORD m_nComponents;
   FX_DWORD m_GroupFamily;
@@ skipping 30 matching lines @@
   const uint8_t* m_RampB;
 };
 
 struct _CPDF_UniqueKeyGen {
   void Generate(int count, ...);
   FX_CHAR m_Key[128];
   int m_KeyLen;
 };
 
 #endif  // CORE_SRC_FPDFAPI_FPDF_RENDER_RENDER_INT_H_