253 lines
6.8 KiB
C
253 lines
6.8 KiB
C
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/****************************************************************************
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thunk.h
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Contains definitions for msvideo thunks (16/32 bit)
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Copyright (c) Microsoft Corporation 1994. All rights reserved
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****************************************************************************/
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//
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// NOTE - 32bit handles have 0x8000 'or'ed in - this makes a BIG ASSUMPTION
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// about how handles are generated on the 32-bit side. We ASSUME here
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// that :
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//
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// 32bit msvideo.dll always uses OpenDriver to create handles
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//
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// The OpenDriver returns indices into its table (ie small positive
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// numbers).
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//
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#define Is32bitHandle(h) (((h) & 0x8000) != 0)
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#define Make32bitHandle(h) ((h) | 0x8000)
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#define Map32bitHandle(h) ((h) & 0x7FFF)
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//
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//
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//
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#ifdef _WIN32
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#ifdef CHICAGO
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//
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// Following pasted from wownt32.h
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//
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//
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// 16 <--> 32 Handle mapping functions.
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//
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// NOTE: While some of these functions perform trivial
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// conversions, these functions must be used to maintain
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// compatibility with future versions of Windows NT which
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// may require different handle mapping.
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//
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typedef enum _WOW_HANDLE_TYPE { /* WOW */
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WOW_TYPE_HWND,
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WOW_TYPE_HMENU,
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WOW_TYPE_HDWP,
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WOW_TYPE_HDROP,
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WOW_TYPE_HDC,
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WOW_TYPE_HFONT,
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WOW_TYPE_HMETAFILE,
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WOW_TYPE_HRGN,
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WOW_TYPE_HBITMAP,
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WOW_TYPE_HBRUSH,
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WOW_TYPE_HPALETTE,
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WOW_TYPE_HPEN,
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WOW_TYPE_HACCEL,
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WOW_TYPE_HTASK,
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WOW_TYPE_FULLHWND
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} WOW_HANDLE_TYPE;
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#define ThunkHWND(h16) ((HWND)h16)
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#define ThunkHDC(h16) ((HDC)h16)
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#define ThunkHPAL(h16) ((HPALETTE)h16)
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#else
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#include <wownt32.h>
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#define ThunkHWND(h16) ((HWND)lpWOWHandle32((WORD)h16, WOW_TYPE_HWND))
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#define ThunkHDC(h16) ((HDC) lpWOWHandle32((WORD)h16, WOW_TYPE_HDC))
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#define ThunkHPAL(h16) ((HPALETTE)lpWOWHandle32((WORD)h16, WOW_TYPE_HPALETTE))
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#endif // !CHICAGO
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//
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// Thunking support
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//
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#define GET_VDM_POINTER_NAME "WOWGetVDMPointer"
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#define GET_HANDLE_MAPPER16 "WOWHandle16"
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#define GET_HANDLE_MAPPER32 "WOWHandle32"
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#define GET_CALLBACK16 "WOWCallback16"
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#define GET_MAPPING_MODULE_NAME TEXT("wow32.dll")
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typedef LPVOID (APIENTRY *LPGETVDMPOINTER)( DWORD Address, DWORD dwBytes, BOOL fProtectMode );
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typedef HANDLE (APIENTRY *LPWOWHANDLE32)(WORD, WOW_HANDLE_TYPE);
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typedef WORD (APIENTRY *LPWOWHANDLE16)(HANDLE, WOW_HANDLE_TYPE);
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typedef DWORD (APIENTRY *LPWOWCALLBACK16)(DWORD vpfn16, DWORD dwParam);
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#define StartThunk(Function) \
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LRESULT ReturnCode = 0; \
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DPFS(dbgThunks, 2, "Entering function %s", #Function);
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#define EndThunk() \
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DPFS(dbgThunks, 2, "Returned %4X :%4X", \
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HIWORD(ReturnCode), \
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LOWORD(ReturnCode)); \
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return ReturnCode;
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#endif // _WIN32
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/*
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* Useful structures and mapping
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*/
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typedef struct {
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short left, top, right, bottom;
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} RECT_SHORT;
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#define SHORT_RECT_TO_RECT(OutRect, InRect) \
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OutRect.left = (LONG)InRect.left; \
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OutRect.top = (LONG)InRect.top; \
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OutRect.right = (LONG)InRect.right; \
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OutRect.bottom = (LONG)InRect.bottom;
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#define RECT_TO_SHORT_RECT(OutRect, InRect) \
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OutRect.left = (short)InRect.left; \
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OutRect.top = (short)InRect.top; \
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OutRect.right = (short)InRect.right; \
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OutRect.bottom = (short)InRect.bottom;
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//
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// Function ids across the thunking layer (used by 32 and 16 bit)
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//
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enum {
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vidThunkvideoMessage32=1,
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vidThunkvideoGetNumDevs32,
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vidThunkvideoOpen32,
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vidThunkvideoClose32,
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compThunkICInfoInternal32,
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compThunkICSendMessage32,
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compThunkICOpen32,
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compThunkICClose32,
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compThunkICOpenFunction32,
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compThunkICSetStatusProc32
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};
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#ifndef _WIN32
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typedef struct _VIDTHUNK
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{
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//
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// Thunking stuff
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//
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DWORD (FAR PASCAL *lpfnCallproc32W)(DWORD, DWORD, DWORD,
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DWORD, DWORD,
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LPVOID, DWORD, DWORD);
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LPVOID lpvThunkEntry;
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DWORD dwVideo32Handle;
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} VIDTHUNK, *PVIDTHUNK, FAR *LPVIDTHUNK;
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#endif // !_WIN32
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//
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// Some typedefs to assist with the ICM_SET_STATUS_PROC
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// thunk and callback thunk.
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//
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// Convention:
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// "S" suffix indicates a 16:16 ptr (Segmented)
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// "L" suffix indicates a 0:32 ptr (Linear)
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// no suffix indicates a native bitness pointer
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//
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typedef LONG (CALLBACK *ICSTATUSPROC)(LPARAM lParam, UINT uMsg, LONG l);
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typedef struct tICSTATUSTHUNKDESC FAR * LPICSTATUSTHUNKDESC;
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#ifdef _WIN32
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typedef DWORD LPVOIDS;
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typedef LPICSTATUSTHUNKDESC LPICSTATUSTHUNKDESCL;
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typedef DWORD LPICSTATUSTHUNKDESCS;
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typedef ICSTATUSPROC ICSTATUSPROCL;
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typedef DWORD ICSTATUSPROCS;
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#else
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typedef LPVOID LPVOIDS;
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typedef DWORD LPICSTATUSTHUNKDESCL;
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typedef LPICSTATUSTHUNKDESC LPICSTATUSTHUNKDESCS;
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typedef DWORD ICSTATUSPROCL;
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typedef ICSTATUSPROC ICSTATUSPROCS;
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#endif
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typedef struct tICSTATUSTHUNKDESC {
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//
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// segmented ptr to this struct
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//
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LPICSTATUSTHUNKDESCS lpstdS;
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//
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// segmented ptr to 16 bit callback stub
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//
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LPVOIDS pfnthkStatusProc16S;
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//
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// from client's ICSETSTATUSPROC
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//
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DWORD dwFlags;
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LPARAM lParam;
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ICSTATUSPROCS fnStatusProcS;
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//
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// to be sent to client's callback
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//
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DWORD uMsg;
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LONG l;
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} ICSTATUSTHUNKDESC;
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//--------------------------------------------------------------------------;
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//
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//
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//
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//--------------------------------------------------------------------------;
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//
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// The following functions generate calls to the 32-bit side
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//
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#ifdef _INC_MSVIDEO
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DWORD FAR PASCAL videoMessage32(HVIDEO hVideo, UINT msg, DWORD dwP1, DWORD dwP2);
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DWORD FAR PASCAL videoGetNumDevs32(void);
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DWORD FAR PASCAL videoClose32(HVIDEO hVideo);
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DWORD FAR PASCAL videoOpen32(LPHVIDEO lphVideo, DWORD dwDeviceID, DWORD dwFlags);
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#endif // _INC_MSVIDEO
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#ifdef _INC_COMPMAN
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#ifdef _WIN32
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LRESULT FAR PASCAL ICInfoInternal32(DWORD fccType, DWORD fccHandler, ICINFO16 FAR * lpicinfo, ICINFOI FAR * lpicinfoi);
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#else
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BOOL FAR PASCAL ICInfoInternal32(DWORD fccType, DWORD fccHandler, ICINFO FAR * lpicinfo, ICINFOI FAR * lpicinfoi);
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#endif
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LRESULT FAR PASCAL ICSendMessage32(DWORD hic, UINT msg, DWORD_PTR dwP1, DWORD_PTR dwP2);
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LRESULT FAR PASCAL ICOpen32(DWORD fccType, DWORD fccHandler, UINT wMode);
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LRESULT FAR PASCAL ICOpenFunction32(DWORD fccType, DWORD fccHandler, UINT wMode, FARPROC lpfnHandler);
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LRESULT FAR PASCAL ICClose32(DWORD hic);
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LRESULT FAR PASCAL ICSendSetStatusProc32(HIC hic, ICSETSTATUSPROC FAR* lpissp, DWORD cbStruct);
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#endif // _INC_COMPMAN
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//--------------------------------------------------------------------------;
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//
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//
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//
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//--------------------------------------------------------------------------;
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