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/*++ BUILD Version: 0001
*
* WOW v1.0
*
* Copyright (c) 1991, Microsoft Corporation
*
* WGDI.H
* WOW32 16-bit GDI API support
*
* History:
* Created 07-Mar-1991 by Jeff Parsons (jeffpar)
--*/
typedef struct _DIBINFO {
HDC di_hdc;
HANDLE di_hfile;
HANDLE di_hsec;
ULONG di_nalignment;
PVOID di_newdib;
PVOID di_newIntelDib;
HBITMAP di_hbm;
ULONG di_dibsize;
USHORT di_originaldibsel;
USHORT di_originaldibflags;
ULONG di_lockcount;
struct _DIBINFO *di_next;
} DIBINFO, *PDIBINFO;
HDC W32HandleDibDrv (PVPVOID vpbmi16);
BOOL W32AddDibInfo ( HDC hdcMem,
HANDLE hfile,
HANDLE hsec,
ULONG nalignment,
PVOID newdib,
PVOID newIntelDib,
HBITMAP hbm,
ULONG dibsize,
USHORT OriginalFlags,
USHORT OriginalSel);
BOOL W32CheckAndFreeDibInfo (HDC hdc);
VOID W32FreeDibInfo (PDIBINFO pdiCur, PDIBINFO pdiLast);
ULONG W32RestoreOldDib (PDIBINFO pdi);
HDC W32FindAndLockDibInfo (USHORT sel);
BOOL W32CheckDibDrvColorIndices(HDC16 hdcDest, HDC16 hdcSrc);
VOID W32DibDrvColorIndicesRestore(void);
typedef struct _DIBSECTIONINFO {
HBITMAP di_hbm;
PVOID di_pv16;
PVOID di_newIntelDib;
struct _DIBSECTIONINFO *di_next;
} DIBSECTIONINFO, *PDIBSECTIONINFO;
BOOL W32CheckAndFreeDibSectionInfo (HBITMAP hbm);
ULONG cjBitmapBitsSize(CONST BITMAPINFO *pbmi);
extern PDIBSECTIONINFO pDibSectionInfoHead;
///////////////////////////////////////////////////////////////////////////////
//
// DIB Macros
//
///////////////////////////////////////////////////////////////////////////////
//
// These are commonly used macros for dib fields access
//
//
#define __abs(a) ((a) >= 0 ? (a) : -(a))
#define WIDTHBYTES(i) ((unsigned)((i+31)&(~31))/8) /* ULONG aligned ! */
#define DibWidthBytes(lpbi) (UINT)WIDTHBYTES((UINT)(lpbi)->biWidth * (UINT)((lpbi)->biBitCount))
#define DibSizeImage(lpbi) ((DWORD)(UINT)DibWidthBytes(lpbi) * (DWORD)(UINT)(__abs((lpbi)->biHeight)))
#define DibSize(lpbi) ((lpbi)->biSize + (lpbi)->biSizeImage + (int)(lpbi)->biClrUsed * sizeof(RGBQUAD))
#define DibPtr(lpbi) (LPVOID)(DibColors(lpbi) + (UINT)(lpbi)->biClrUsed)
#define DibColors(lpbi) ((LPRGBQUAD)((LPBYTE)(lpbi) + (int)(lpbi)->biSize))
#define DibNumColors(lpbi) ((lpbi)->biClrUsed == 0 && (lpbi)->biBitCount <= 8 \
? (int)(1 << (int)(lpbi)->biBitCount) \
: (int)(lpbi)->biClrUsed)
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