reactos/subsystems/win32/win32k/include/surface.h

   1 #pragma once
   2
   3 #include "win32.h"
   4 #include "gdiobj.h"
   5
   6 /* GDI surface object */
   7 typedef struct _SURFACE
   8 {
   9   BASEOBJECT  BaseObject;
  10
  11   SURFOBJ     SurfObj;
  12   FLONG       flHooks;
  13   FLONG       flFlags;
  14   struct _PALETTE  *ppal;
  15
  16   union
  17   {
  18     HANDLE    hSecureUMPD;  // if UMPD_SURFACE set
  19     HANDLE    hMirrorParent;// if MIRROR_SURFACE set
  20     HANDLE    hDDSurface;   // if DIRECTDRAW_SURFACE set
  21   };
  22
  23   SIZEL       dimension;    /* For SetBitmapDimension(), do NOT use
  24                                to get width/height of bitmap, use
  25                                bitmap.bmWidth/bitmap.bmHeight for
  26                                that */
  27
  28   HDC         hDC; // Doc in "Undocumented Windows", page 546, seems to be supported with XP.
  29   ULONG       cRef;         // 0x064
  30   HPALETTE    hpalHint;
  31
  32   /* For device-independent bitmaps: */
  33   HANDLE      hDIBSection;
  34   HANDLE      hSecure;
  35   DWORD       dwOffset;
  36
  37   /* reactos specific */
  38   PFAST_MUTEX BitsLock;     /* You need to hold this lock before you touch
  39                                the actual bits in the bitmap */
  40   HPALETTE hDIBPalette;
  41   DWORD dsBitfields[3]; // hack, should probably use palette instead
  42   DWORD biClrUsed;
  43   DWORD biClrImportant;
  44 } SURFACE, *PSURFACE;
  45
  46 #define BITMAPOBJ_IS_APIBITMAP          0x1
  47
  48 /*  Internal interface  */
  49
  50 #define SURFACE_AllocSurface()    ((PSURFACE) GDIOBJ_AllocObj(GDIObjType_SURF_TYPE))
  51 #define SURFACE_AllocSurfaceWithHandle()    ((PSURFACE) GDIOBJ_AllocObjWithHandle(GDI_OBJECT_TYPE_BITMAP))
  52 #define SURFACE_FreeSurface(pBMObj) GDIOBJ_FreeObj((POBJ) pBMObj, GDIObjType_SURF_TYPE)
  53 #define SURFACE_FreeSurfaceByHandle(hBMObj) GDIOBJ_FreeObjByHandle((HGDIOBJ) hBMObj, GDI_OBJECT_TYPE_BITMAP)
  54
  55 /* NOTE: Use shared locks! */
  56 #define  SURFACE_LockSurface(hBMObj) \
  57   ((PSURFACE) GDIOBJ_LockObj ((HGDIOBJ) hBMObj, GDI_OBJECT_TYPE_BITMAP))
  58 #define  SURFACE_ShareLockSurface(hBMObj) \
  59   ((PSURFACE) GDIOBJ_ShareLockObj ((HGDIOBJ) hBMObj, GDI_OBJECT_TYPE_BITMAP))
  60 #define  SURFACE_UnlockSurface(pBMObj)  \
  61   GDIOBJ_UnlockObjByPtr ((POBJ)pBMObj)
  62 #define  SURFACE_ShareUnlockSurface(pBMObj)  \
  63   GDIOBJ_ShareUnlockObjByPtr ((POBJ)pBMObj)
  64
  65 #define SURFACE_LockBitmapBits(pBMObj) ExEnterCriticalRegionAndAcquireFastMutexUnsafe((pBMObj)->BitsLock)
  66 #define SURFACE_UnlockBitmapBits(pBMObj) ExReleaseFastMutexUnsafeAndLeaveCriticalRegion((pBMObj)->BitsLock)
  67
  68 BOOL INTERNAL_CALL SURFACE_Cleanup(PVOID ObjectBody);
  69 BOOL INTERNAL_CALL SURFACE_InitBitsLock(SURFACE *pBMObj);
  70 void INTERNAL_CALL SURFACE_CleanupBitsLock(SURFACE *pBMObj);
  71
  72 #define GDIDEV(SurfObj) ((PDEVOBJ *)((SurfObj)->hdev))
  73 #define GDIDEVFUNCS(SurfObj) ((PDEVOBJ *)((SurfObj)->hdev))->DriverFunctions
  74
  75 INT   FASTCALL BitsPerFormat (ULONG Format);
  76 ULONG FASTCALL BitmapFormat (WORD Bits, DWORD Compression);