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