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                 enum
  17                 {
  18                         ELastDsaRequest = EpocSdlEnv::ELastService,
  19                 };
  20
  21                 inline TBool IsDsaAvailable() const;
  22
  23                 static CDsa* CreateL(RWsSession& aSession);
  24
  25                 ~CDsa();
  26
  27                 TUint8* LockHwSurface();
  28                 TInt AllocSurface(const TSize& aSize, TDisplayMode aMode);
  29                 inline TDisplayMode DisplayMode() const;
  30
  31                 TInt SetPalette(TInt aFirst, TInt aCount, TUint32* aPalette);
  32                 TBool AddUpdateRect(const TUint8* aBits, const TRect& aUpdateRect, const TRect& aRect);
  33                 void UpdateSwSurface();
  34                 void SetSuspend();
  35
  36
  37                 TBool Stopped() const;
  38                 RWsSession& Session();
  39                 RWindow* Window();
  40                 CDsa* CreateGlesDsaL();
  41
  42                 void DoStop();
  43
  44                 virtual void Free();
  45
  46                 virtual void ConstructL(RWindow& aWindow, CWsScreenDevice& aDevice);
  47                 virtual void SetUpdating(TBool aUpdate);
  48
  49                 virtual TUint8* LockSurface() = 0;
  50                 virtual void UnlockHwSurface() = 0;
  51                 virtual void Resume() = 0;
  52                 virtual void Stop();
  53                 virtual void DoBlt(CFbsBitmap& aBmp);
  54
  55                 bool m_updateWholeScreen;
  56
  57         protected:
  58                 CDsa(RWsSession& aSession);
  59                 void Start();
  60
  61                 enum
  62                 {
  63                         ERunning                = 0x1,
  64                         EUpdating               = 0x2,
  65                         EUsePalette             = 0x8,
  66                         ESdlThreadSuspend       = 0x100,
  67                         ESdlThreadExplicitStop  = 0x200
  68                 };
  69
  70         private:
  71                 virtual void CreateSurfaceL(const TSize& aSize) = 0;
  72
  73                 void ClipCopy(TUint8* aTarget, const TUint8* aSource, const TRect& aUpdateRect, const TRect& aSourceRect) const;
  74                 static void Copy256(const CDsa& aDsa, TUint32* aTarget, const TUint8* aSource, TInt aBytes);
  75                 static void CopySlow(const CDsa& aDsa, TUint32* aTarget, const TUint8* aSource, TInt aBytes);
  76                 static void CopyMem(const CDsa& aDsa, TUint32* aTarget, const TUint8* aSource, TInt aBytes);
  77
  78                 void SetCopyFunction();
  79
  80                 TInt iStateFlags;
  81                 RWsSession& iSession;
  82
  83                 TInt iTargetBpp;
  84                 TInt iSourceBpp;
  85                 TDisplayMode iSourceMode;
  86                 TDisplayMode iTargetMode;
  87                 TUint32* iLut256;
  88                 TCopyFunction iCopyFunction;
  89                 TUint8* iTargetAddr;
  90                 TCopyFunction iCFTable[3];
  91                 TInt iNewFlags;
  92                 RWindow* iWindow;
  93                 friend class TDsa;
  94 };
  95
  96 inline TDisplayMode CDsa::DisplayMode() const
  97 {
  98         return iTargetMode;
  99 }
 100
 101 inline TBool CDsa::IsDsaAvailable() const
 102 {
 103         return iStateFlags & ERunning;
 104 }
 105
 106 #endif