168 lines
6.1 KiB
C
168 lines
6.1 KiB
C
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/*==========================================================================
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*
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* Copyright (C) 1997 Microsoft Corporation. All Rights Reserved.
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*
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* File: ddraw3i.h
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* Content: DirectDraw 3 internal data structures
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* History:
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* Date By Reason
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* ==== == ======
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* 27-feb-97 craige initial implementation
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*
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***************************************************************************/
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#define DDRAWISURFGBL_MEMFREE 0x00000001L // memory has been freed
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#define DDRAWISURFGBL_SYSMEMREQUESTED 0x00000002L // surface is in system memory at request of user
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#define DDRAWISURF_HASPIXELFORMAT 0x00002000L // surface structure has pixel format data
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typedef ULONG_PTR FLATPTR;
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typedef struct _DDRAWI_DDRAWSURFACE_GBL FAR *LPDDRAWI_DDRAWSURFACE_GBL;
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typedef struct _DDRAWI_DDRAWSURFACE_MORE FAR *LPDDRAWI_DDRAWSURFACE_MORE;
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typedef struct _DDRAWI_DDRAWSURFACE_LCL FAR *LPDDRAWI_DDRAWSURFACE_LCL;
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typedef struct _DDRAWI_DDRAWSURFACE_INT FAR *LPDDRAWI_DDRAWSURFACE_INT;
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/*
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* DBLNODE - a node in a doubly-linked list of surface interfaces
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*/
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typedef struct _DBLNODE
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{
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struct _DBLNODE FAR *next; // link to next node
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struct _DBLNODE FAR *prev; // link to previous node
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LPDDRAWI_DDRAWSURFACE_LCL object; // link to object
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LPDDRAWI_DDRAWSURFACE_INT object_int; // object interface
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} DBLNODE;
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typedef DBLNODE FAR *LPDBLNODE;
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/*
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* DDRAW surface interface struct
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*/
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typedef struct _DDRAWI_DDRAWSURFACE_INT
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{
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LPVOID lpVtbl; // pointer to array of interface methods
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LPDDRAWI_DDRAWSURFACE_LCL lpLcl; // pointer to interface data
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LPDDRAWI_DDRAWSURFACE_INT lpLink; // link to next interface
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DWORD dwIntRefCnt; // interface reference count
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} DDRAWI_DDRAWSURFACE_INT;
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/*
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* DDRAW internal version of DIRECTDRAWSURFACE struct
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*
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* the GBL structure is global data for all duplicate objects
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*/
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typedef struct _DDRAWI_DDRAWSURFACE_GBL
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{
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DWORD dwRefCnt; // reference count
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DWORD dwGlobalFlags; // global flags
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union
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{
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LPVOID lpRectList; // list of accesses
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DWORD dwBlockSizeY; // block size that display driver requested (return)
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};
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union
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{
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LPVOID lpVidMemHeap; // heap vidmem was alloc'ed from
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DWORD dwBlockSizeX; // block size that display driver requested (return)
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};
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union
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{
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LPVOID lpDD; // internal DIRECTDRAW object
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LPVOID lpDDHandle; // handle to internal DIRECTDRAW object
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// for use by display driver
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// when calling fns in DDRAW16.DLL
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};
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FLATPTR fpVidMem; // pointer to video memory
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union
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{
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LONG lPitch; // pitch of surface
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DWORD dwLinearSize; // linear size of non-rectangular surface
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};
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WORD wHeight; // height of surface
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WORD wWidth; // width of surface
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DWORD dwUsageCount; // number of access to this surface
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DWORD dwReserved1; // reserved for use by display driver
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//
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// NOTE: this part of the structure is ONLY allocated if the pixel
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// format differs from that of the primary display
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//
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DDPIXELFORMAT ddpfSurface; // pixel format of surface
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} DDRAWI_DDRAWSURFACE_GBL;
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/*
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* a structure holding additional LCL surface information (can't simply be appended
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* to the LCL structure as that structure is of variable size).
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*/
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typedef struct _DDRAWI_DDRAWSURFACE_MORE
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{
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DWORD dwSize;
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VOID FAR *lpIUnknowns; // IUnknowns aggregated by this surface
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LPVOID lpDD_lcl; // Pointer to the DirectDraw local object
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DWORD dwPageLockCount; // count of pagelocks
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DWORD dwBytesAllocated; // size of sys mem allocated
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LPVOID lpDD_int; // Pointer to the DirectDraw interface
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DWORD dwMipMapCount; // Number of mip-map levels in the chain
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LPVOID lpDDIClipper; // Interface to attached clipper object
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} DDRAWI_DDRAWSURFACE_MORE;
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/*
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* the LCL structure is local data for each individual surface object
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*/
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struct _DDRAWI_DDRAWSURFACE_LCL
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{
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LPDDRAWI_DDRAWSURFACE_MORE lpSurfMore; // pointer to additional local data
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LPDDRAWI_DDRAWSURFACE_GBL lpGbl; // pointer to surface shared data
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DWORD hDDSurface; // NT Kernel-mode handle was dwUnused0
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LPVOID lpAttachList; // link to surfaces we attached to
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LPVOID lpAttachListFrom;// link to surfaces that attached to this one
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DWORD dwLocalRefCnt; // object refcnt
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DWORD dwProcessId; // owning process
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DWORD dwFlags; // flags
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DDSCAPS ddsCaps; // capabilities of surface
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union
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{
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LPVOID lpDDPalette; // associated palette
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LPVOID lp16DDPalette; // 16-bit ptr to associated palette
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};
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union
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{
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LPVOID lpDDClipper; // associated clipper
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LPVOID lp16DDClipper; // 16-bit ptr to associated clipper
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};
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DWORD dwModeCreatedIn;
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DWORD dwBackBufferCount; // number of back buffers created
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DDCOLORKEY ddckCKDestBlt; // color key for destination blt use
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DDCOLORKEY ddckCKSrcBlt; // color key for source blt use
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// IUnknown FAR *pUnkOuter; // outer IUnknown
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DWORD hDC; // owned dc
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DWORD dwReserved1; // reserved for use by display driver
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/*
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* NOTE: this part of the structure is ONLY allocated if the surface
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* can be used for overlays. ddckCKSrcOverlay MUST NOT BE MOVED
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* from the start of this area.
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*/
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DDCOLORKEY ddckCKSrcOverlay;// color key for source overlay use
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DDCOLORKEY ddckCKDestOverlay;// color key for destination overlay use
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LPDDRAWI_DDRAWSURFACE_INT lpSurfaceOverlaying; // surface we are overlaying
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DBLNODE dbnOverlayNode;
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/*
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* overlay rectangle, used by DDHEL
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*/
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RECT rcOverlaySrc;
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RECT rcOverlayDest;
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/*
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* the below values are kept here for ddhel. they're set by UpdateOverlay,
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* they're used whenever the overlays are redrawn.
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*/
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DWORD dwClrXparent; // the *actual* color key (override, colorkey, or CLR_INVALID)
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DWORD dwAlpha; // the per surface alpha
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/*
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* overlay position
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*/
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LONG lOverlayX; // current x position
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LONG lOverlayY; // current y position
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};
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typedef struct _DDRAWI_DDRAWSURFACE_LCL DDRAWI_DDRAWSURFACE_LCL;
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