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, TInt aLineLen);
  12
  13 NONSHARABLE_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                 void LockPalette(TBool aLock);
  33                 TBool AddUpdateRect(const TUint8* aBits, const TRect& aUpdateRect, const TRect& aRect);
  34                 void UpdateSwSurface();
  35                 TSize WindowSize() const;
  36                 void SetSuspend();
  37
  38
  39                 TBool Stopped() const;
  40                 RWsSession& Session();
  41                 RWindow* Window();
  42                 CDsa* CreateGlesDsaL();
  43
  44                 void DoStop();
  45
  46                 virtual void Free();
  47
  48                 virtual void ConstructL(RWindow& aWindow, CWsScreenDevice& aDevice);
  49                 virtual void SetUpdating(TBool aUpdate);
  50
  51                 virtual TUint8* LockSurface() = 0;
  52                 virtual void UnlockHwSurface() = 0;
  53                 virtual void Resume() = 0;
  54                 virtual void Stop();
  55                 virtual void DoBlt(CFbsBitmap& aBmp);
  56
  57                 bool m_updateWholeScreen;
  58
  59         protected:
  60
  61                 inline const TSize& SwSize() const;
  62                 inline const TRect& HwRect() const;
  63
  64                 inline const TRect& ScreenRect() const;
  65
  66                 CDsa(RWsSession& aSession);
  67                 void SetTargetRect();
  68                 void Start();
  69
  70                 enum
  71                 {
  72                         ERunning                = 0x1,
  73                         EUpdating               = 0x2,
  74                         EPaletteLocked          = 0x4,
  75                         EUsePalette             = 0x8,
  76                         ESdlThreadSuspend       = 0x100,
  77                         ESdlThreadExplicitStop  = 0x200
  78                 };
  79
  80         private:
  81                 virtual void CreateSurfaceL() = 0;
  82
  83                 void ClipCopy(TUint8* aTarget, const TUint8* aSource, const TRect& aUpdateRect, const TRect& aSourceRect) const;
  84                 static void Copy256(const CDsa& aDsa, TUint32* aTarget, const TUint8* aSource, TInt aBytes, TInt);
  85                 static void CopySlow(const CDsa& aDsa, TUint32* aTarget, const TUint8* aSource, TInt aBytes, TInt);
  86                 static void CopyMem(const CDsa& aDsa, TUint32* aTarget, const TUint8* aSource, TInt aBytes, TInt);
  87
  88                 void SetCopyFunction();
  89
  90                 TInt iStateFlags;
  91                 RWsSession& iSession;
  92                 TRect iScreenRect;
  93
  94                 TInt iTargetBpp;
  95                 TInt iSourceBpp;
  96                 TDisplayMode iSourceMode;
  97                 TDisplayMode iTargetMode;
  98                 TUint32* iLut256;
  99                 TCopyFunction iCopyFunction;
 100                 TUint8* iTargetAddr;
 101                 TCopyFunction iCFTable[3];
 102                 TInt iNewFlags;
 103                 TSize iSwSize;
 104                 TRect iTargetRect;
 105                 RWindow* iWindow;
 106                 friend class TDsa;
 107 };
 108
 109 inline TDisplayMode CDsa::DisplayMode() const
 110 {
 111         return iTargetMode;
 112 }
 113
 114 inline const TRect& CDsa::HwRect() const
 115 {
 116         return iTargetRect;
 117 }
 118
 119 inline const TSize& CDsa::SwSize() const
 120 {
 121         return iSwSize;
 122 }
 123
 124 inline TBool CDsa::IsDsaAvailable() const
 125 {
 126         return iStateFlags & ERunning;
 127 }
 128
 129 inline const TRect& CDsa::ScreenRect() const
 130 {
 131         return iScreenRect;
 132 }
 133
 134 #endif