symbian/include/internal/dsa.h

   1 #ifndef __DSA_H__
   2 #define __DSA_H__
   3
   4 #include <e32base.h>
   5 #include <w32std.h>
   6 #include "epoc_sdl.h"
   7 #include "sdlepocapi.h"
   8
   9 class CDsa;
  10
  11 typedef void (*TCopyFunction)(const CDsa& aDsa, TUint32* aTarget, const TUint8* aSource, TInt aBytes);
  12
  13 class CDsa : public CBase
  14 {
  15         public:
  16                 inline bool IsDsaAvailable() const;
  17
  18                 static CDsa* CreateL(RWsSession& aSession);
  19
  20                 ~CDsa();
  21
  22                 TInt AllocSurface(const TSize& aSize, TDisplayMode aMode);
  23                 inline TDisplayMode DisplayMode() const;
  24
  25                 TInt SetPalette(TInt aFirst, TInt aCount, TUint32* aPalette);
  26                 bool AddUpdateRect(const TUint8* aBits, const TRect& aUpdateRect, const TRect& aRect);
  27                 void UpdateSwSurface();
  28
  29                 RWsSession& Session();
  30                 RWindow* Window();
  31                 CDsa* CreateGlesDsaL();
  32
  33                 virtual void Free();
  34
  35                 virtual void ConstructL(RWindow& aWindow, CWsScreenDevice& aDevice);
  36
  37                 virtual TUint8* LockSurface() = 0;
  38                 virtual void UnlockHwSurface() = 0;
  39                 virtual void Stop();
  40
  41                 bool m_updateWholeScreen;
  42
  43         protected:
  44                 CDsa(RWsSession& aSession);
  45                 void Start();
  46
  47         private:
  48                 virtual void CreateSurfaceL(const TSize& aSize) = 0;
  49
  50                 void ClipCopy(TUint8* aTarget, const TUint8* aSource, const TRect& aUpdateRect, const TRect& aSourceRect) const;
  51                 static void Copy256(const CDsa& aDsa, TUint32* aTarget, const TUint8* aSource, TInt aBytes);
  52                 static void CopySlow(const CDsa& aDsa, TUint32* aTarget, const TUint8* aSource, TInt aBytes);
  53                 static void CopyMem(const CDsa& aDsa, TUint32* aTarget, const TUint8* aSource, TInt aBytes);
  54
  55                 void SetCopyFunction();
  56
  57                 bool iRunning;
  58                 RWsSession& iSession;
  59
  60                 TInt iTargetBpp;
  61                 TInt iSourceBpp;
  62                 TDisplayMode iSourceMode;
  63                 TDisplayMode iTargetMode;
  64                 TUint32* iLut256;
  65                 TCopyFunction iCopyFunction;
  66                 TUint8* iTargetAddr;
  67                 TCopyFunction iCFTable[3];
  68                 TInt iNewFlags;
  69                 RWindow* iWindow;
  70                 friend class TDsa;
  71 };
  72
  73 inline TDisplayMode CDsa::DisplayMode() const
  74 {
  75         return iTargetMode;
  76 }
  77
  78 inline bool CDsa::IsDsaAvailable() const
  79 {
  80         return iRunning;
  81 }
  82
  83 #endif