src/external/3rd/application/UiBuilder/UIDirectDrawCanvas.h

   1 #ifndef __UIDIRECTDRAWCANVAS_H__
   2 #define __UIDIRECTDRAWCANVAS_H__
   3
   4 #include <ddraw.h>
   5
   6 #include "UICanvas.h"
   7
   8 extern  LPDIRECTDRAW7                            gDirectDraw;
   9
  10 class UIDirectDrawCanvas : public UICanvas
  11 {
  12 public:
  13
  14         static const char    *TypeName;
  15
  16                                                                                     UIDirectDrawCanvas( UISize );
  17         virtual                                            ~UIDirectDrawCanvas();
  18
  19         virtual bool                        IsA( const UITypeID ) const;
  20         virtual UIBaseObject *Clone( void ) const;
  21
  22         virtual bool                        Generate( void ) const = 0;
  23
  24         virtual void                        SetSize( const UISize & );
  25
  26                                         bool                        Prepare( void ) const;
  27         virtual void                        BltFrom( const UICanvas * const src, const UIPoint &Source, const UIPoint &Destination, const UISize &Size );
  28
  29         // Used by generator functions
  30         virtual LPDIRECTDRAWSURFACE7 GetSurface( void ) const;
  31         virtual void                        SetSurface( LPDIRECTDRAWSURFACE7 );
  32
  33         virtual void          Refresh( void );
  34
  35                                  DWORD                                  FormatUIColorForDirectDrawSurface( const UIColor & ) const;
  36                                  DWORD                                  FormatRGBForDirectDrawSurface( const unsigned char r, const unsigned char g, const unsigned char b, const unsigned char a = 0xFF ) const;
  37
  38                                   void                                  SetDirectDrawSurface16( unsigned char *p, const unsigned char r, const unsigned char g, const unsigned char b, const unsigned char a = 0xFF ) const;
  39                                   void                                  SetDirectDrawSurface24( unsigned char *p, const unsigned char r, const unsigned char g, const unsigned char b, const unsigned char a = 0xFF ) const;
  40                                         void                                    SetDirectDrawSurface32( unsigned char *p, const unsigned char r, const unsigned char g, const unsigned char b, const unsigned char a = 0xFF ) const;
  41
  42 private:
  43
  44
  45         UIDirectDrawCanvas & operator=           (const UIDirectDrawCanvas &);
  46                              UIDirectDrawCanvas  (const UIDirectDrawCanvas &);
  47
  48 protected:
  49
  50         virtual void          DestoryAll( void );
  51
  52         LPDIRECTDRAWSURFACE7  mSurface;
  53
  54         DWORD                                                                   mRedScale;
  55         DWORD                                                                   mRedShift;
  56         DWORD                                                                   mRedMask;
  57
  58         DWORD                                                                   mGreenScale;
  59         DWORD                                                                   mGreenShift;
  60         DWORD                                                                   mGreenMask;
  61
  62         DWORD                                                                   mBlueScale;
  63         DWORD                                                                   mBlueShift;
  64         DWORD                                                                   mBlueMask;
  65
  66         DWORD                                                                   mAlphaScale;
  67         DWORD                                                                   mAlphaShift;
  68         DWORD                                                                   mAlphaMask;
  69 };
  70
  71 inline DWORD UIDirectDrawCanvas::FormatUIColorForDirectDrawSurface( const UIColor &color ) const
  72 {
  73         return (((DWORD)(color.r >> mRedScale) << mRedShift) & mRedMask) |
  74                      (((DWORD)(color.g >> mGreenScale) << mGreenShift) & mGreenMask) |
  75                                  (((DWORD)(color.b >> mBlueScale) << mBlueShift) & mBlueMask) |
  76                                  (((DWORD)(color.a >> mAlphaScale) << mAlphaShift) & mAlphaMask);
  77 }
  78
  79 inline DWORD UIDirectDrawCanvas::FormatRGBForDirectDrawSurface( const unsigned char r, const unsigned char g, const unsigned char b, const unsigned char a ) const
  80 {
  81         return (((DWORD)(r >> mRedScale  ) << mRedShift  ) & mRedMask  ) |
  82                      (((DWORD)(g >> mGreenScale) << mGreenShift) & mGreenMask) |
  83                                  (((DWORD)(b >> mBlueScale ) << mBlueShift ) & mBlueMask ) |
  84                                  (((DWORD)(a >> mAlphaScale) << mAlphaShift) & mAlphaMask);
  85 }
  86
  87 inline void UIDirectDrawCanvas::SetDirectDrawSurface16( unsigned char *p, const unsigned char r, const unsigned char g, const unsigned char b, const unsigned char a ) const
  88 {
  89         *(WORD *)(p) = static_cast<unsigned short> ((((WORD)((r >> mRedScale  ) << (WORD)mRedShift  ) & (WORD)mRedMask  )) |
  90                              (((WORD)((g >> mGreenScale) << (WORD)mGreenShift) & (WORD)mGreenMask)) |
  91                                                                  (((WORD)((b >> mBlueScale ) << (WORD)mBlueShift ) & (WORD)mBlueMask )) |
  92                                                                  (((WORD)((a >> mAlphaScale) << (WORD)mAlphaShift) & (WORD)mAlphaMask)));
  93 }
  94
  95 inline void UIDirectDrawCanvas::SetDirectDrawSurface24( unsigned char *p, const unsigned char r, const unsigned char g, const unsigned char b, const unsigned char ) const
  96 {
  97         *p       = r;
  98         *(p + 1) = g;
  99         *(p + 2) = b;
 100 }
 101
 102 inline void UIDirectDrawCanvas::SetDirectDrawSurface32( unsigned char *p, const unsigned char r, const unsigned char g, const unsigned char b, const unsigned char a ) const
 103 {
 104         *(DWORD *)(p) = (((DWORD)(r >> mRedScale  ) << mRedShift  ) & mRedMask  ) |
 105                               (((DWORD)(g >> mGreenScale) << mGreenShift) & mGreenMask) |
 106                                                                         (((DWORD)(b >> mBlueScale ) << mBlueShift ) & mBlueMask ) |
 107                                                                   (((DWORD)(a >> mAlphaScale) << mAlphaShift) & mAlphaMask);
 108 }
 109
 110 typedef void (UIDirectDrawCanvas::*DDCSetPixelFunc)( unsigned char *, const unsigned char, const unsigned char, const unsigned char, const unsigned char ) const;
 111
 112 #endif // __UIDIRECTDRAWCANVAS_H__