141 lines
4.2 KiB
C
141 lines
4.2 KiB
C
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/****************************************************************************
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vidthunk.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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// 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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// 32bit msvideo.dll always uses OpenDriver to create handles
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// The OpenDriver returns indices into its table (ie small positive
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// numbers).
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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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#ifdef WIN32
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#include <wownt32.h>
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// Thunking support
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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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#define WOW32ResolveMemory( p ) (LPVOID)(GetVdmPointer( (DWORD)(p), 0, TRUE ))
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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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DWORD ReturnCode = 0; \
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DPF2(("Entering function %s", #Function));
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#define EndThunk() \
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DPF2(("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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#define ThunkHWND(h16) ((HWND)lpWOWHandle32(WOW_TYPE_HWND, h16))
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#define ThunkHDC(h16) ((HDC) lpWOWHandle32(WOW_TYPE_HDC , h16))
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#define ThunkHPAL(h16) ((HPALETTE)lpWOWHandle32(WOW_TYPE_HPALETTE, h16))
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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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// Function ids across the thunking layer (used by 32 and 16 bit)
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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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compThunkICInfo32,
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compThunkICSendMessage32,
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compThunkICOpen32,
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compThunkICClose32,
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vidThunkvideoGetDriverDesc32
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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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// Thunking stuff
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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 lpVideoThunkEntry;
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DWORD dwVideo32Handle;
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LPVOID lpICMThunkEntry;
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DWORD dwICM32Handle;
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} VIDTHUNK, *PVIDTHUNK, FAR *LPVIDTHUNK;
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#endif // !WIN32
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// The following functions generate calls to the 32-bit side
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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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DWORD FAR PASCAL videoGetDriverDesc32(DWORD wDriverIndex,
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LPSTR lpszName, short cbName,
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LPSTR lpszVer, short cbVer);
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#endif // _INC_MSVIDEO
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#ifdef _INC_COMPMAN
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BOOL FAR PASCAL ICInfo32(DWORD fccType, DWORD fccHandler, ICINFO FAR * lpicInfo);
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LRESULT FAR PASCAL ICSendMessage32(DWORD hic, UINT msg, DWORD dwP1, DWORD dwP2);
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DWORD FAR PASCAL ICOpen32(DWORD fccType, DWORD fccHandler, UINT wMode);
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LRESULT FAR PASCAL ICClose32(DWORD hic);
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#endif // _INC_COMPMAN
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