251 lines
7.6 KiB
C
251 lines
7.6 KiB
C
/*
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* Emulator thunks
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*
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* Copyright 1996 Alexandre Julliard
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*/
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#include "windows.h"
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#include "callback.h"
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#include "heap.h"
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typedef void (*RELAY)();
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typedef struct
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{
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BYTE popl_eax; /* 0x58 popl %eax (return address) */
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BYTE pushl_func; /* 0x68 pushl $proc */
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FARPROC32 proc WINE_PACKED;
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BYTE pushl_eax; /* 0x50 pushl %eax */
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BYTE jmp; /* 0xe9 jmp relay (relative jump)*/
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RELAY relay WINE_PACKED;
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} THUNK;
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#define DECL_THUNK(name,proc,relay) \
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THUNK name = { 0x58, 0x68, (FARPROC32)(proc), 0x50, 0xe9, \
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(RELAY)((char *)(relay) - (char *)(&(name) + 1)) }
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/***********************************************************************
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* THUNK_Alloc
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*/
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static THUNK *THUNK_Alloc( FARPROC32 func, RELAY relay )
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{
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THUNK *thunk = HeapAlloc( SystemHeap, 0, sizeof(*thunk) );
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if (thunk)
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{
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thunk->popl_eax = 0x58;
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thunk->pushl_func = 0x68;
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thunk->proc = func;
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thunk->pushl_eax = 0x50;
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thunk->jmp = 0xe9;
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thunk->relay = relay;
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}
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return thunk;
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}
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/***********************************************************************
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* THUNK_Free
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*/
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static void THUNK_Free( THUNK *thunk )
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{
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HeapFree( SystemHeap, 0, thunk );
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}
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/***********************************************************************
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* THUNK_EnumObjects16 (GDI.71)
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*/
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INT16 THUNK_EnumObjects16( HDC16 hdc, INT16 nObjType,
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GOBJENUMPROC16 func, LPARAM lParam )
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{
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DECL_THUNK( thunk, func, CallTo16_word_ll );
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return EnumObjects( hdc, nObjType, (GOBJENUMPROC16)&thunk, lParam );
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}
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/*************************************************************************
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* THUNK_EnumFonts16 (GDI.70)
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*/
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INT16 THUNK_EnumFonts16( HDC16 hdc, LPCSTR lpFaceName,
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FONTENUMPROC16 func, LPARAM lParam )
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{
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DECL_THUNK( thunk, func, CallTo16_word_llwl );
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return EnumFonts( hdc, lpFaceName, (FONTENUMPROC16)&thunk, lParam );
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}
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/******************************************************************
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* THUNK_EnumMetaFile16 (GDI.175)
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*/
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BOOL16 THUNK_EnumMetaFile16( HDC16 hdc, HMETAFILE16 hmf,
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MFENUMPROC16 func, LPARAM lParam )
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{
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DECL_THUNK( thunk, func, CallTo16_word_wllwl );
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return EnumMetaFile( hdc, hmf, (MFENUMPROC16)&thunk, lParam );
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}
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/*************************************************************************
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* THUNK_EnumFontFamilies16 (GDI.330)
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*/
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INT16 THUNK_EnumFontFamilies16( HDC16 hdc, LPCSTR lpszFamily,
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FONTENUMPROC16 func, LPARAM lParam )
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{
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DECL_THUNK( thunk, func, CallTo16_word_llwl );
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return EnumFontFamilies( hdc, lpszFamily, (FONTENUMPROC16)&thunk, lParam );
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}
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/**********************************************************************
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* THUNK_LineDDA16 (GDI.100)
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*/
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void THUNK_LineDDA16( INT16 nXStart, INT16 nYStart, INT16 nXEnd, INT16 nYEnd,
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LINEDDAPROC16 func, LPARAM lParam )
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{
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DECL_THUNK( thunk, func, CallTo16_word_wwl );
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LineDDA16( nXStart, nYStart, nXEnd, nYEnd, (LINEDDAPROC16)&thunk, lParam );
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}
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/**********************************************************************
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* THUNK_LineDDA32 (GDI32.248)
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*/
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BOOL32 THUNK_LineDDA32( INT32 nXStart, INT32 nYStart, INT32 nXEnd, INT32 nYEnd,
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LINEDDAPROC32 func, LPARAM lParam )
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{
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DECL_THUNK( thunk, func, CallTo32_3 );
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return LineDDA32( nXStart, nYStart, nXEnd, nYEnd,
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(LINEDDAPROC32)&thunk, lParam );
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}
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/*******************************************************************
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* THUNK_EnumWindows16 (USER.54)
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*/
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BOOL16 THUNK_EnumWindows16( WNDENUMPROC16 func, LPARAM lParam )
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{
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DECL_THUNK( thunk, func, CallTo16_word_wl );
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return EnumWindows16( (WNDENUMPROC16)&thunk, lParam );
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}
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/*******************************************************************
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* THUNK_EnumWindows32 (USER32.192)
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*/
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BOOL32 THUNK_EnumWindows32( WNDENUMPROC32 func, LPARAM lParam )
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{
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DECL_THUNK( thunk, func, CallTo32_2 );
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return EnumWindows32( (WNDENUMPROC32)&thunk, lParam );
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}
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/**********************************************************************
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* THUNK_EnumChildWindows16 (USER.55)
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*/
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BOOL16 THUNK_EnumChildWindows16( HWND16 parent, WNDENUMPROC16 func,
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LPARAM lParam )
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{
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DECL_THUNK( thunk, func, CallTo16_word_wl );
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return EnumChildWindows16( parent, (WNDENUMPROC16)&thunk, lParam );
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}
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/**********************************************************************
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* THUNK_EnumChildWindows32 (USER32.177)
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*/
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BOOL32 THUNK_EnumChildWindows32( HWND32 parent, WNDENUMPROC32 func,
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LPARAM lParam )
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{
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DECL_THUNK( thunk, func, CallTo32_2 );
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return EnumChildWindows32( parent, (WNDENUMPROC32)&thunk, lParam );
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}
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/**********************************************************************
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* THUNK_EnumTaskWindows16 (USER.225)
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*/
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BOOL16 THUNK_EnumTaskWindows16( HTASK16 hTask, WNDENUMPROC16 func,
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LPARAM lParam )
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{
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DECL_THUNK( thunk, func, CallTo16_word_wl );
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return EnumTaskWindows16( hTask, (WNDENUMPROC16)&thunk, lParam );
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}
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/**********************************************************************
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* THUNK_EnumThreadWindows (USER32.189)
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*/
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BOOL32 THUNK_EnumThreadWindows( DWORD id, WNDENUMPROC32 func, LPARAM lParam )
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{
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DECL_THUNK( thunk, func, CallTo32_2 );
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return EnumThreadWindows( id, (WNDENUMPROC32)&thunk, lParam );
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}
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/***********************************************************************
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* THUNK_EnumProps16 (USER.27)
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*/
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INT16 THUNK_EnumProps16( HWND16 hwnd, PROPENUMPROC16 func )
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{
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DECL_THUNK( thunk, func, CallTo16_word_wlw );
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return EnumProps16( hwnd, (PROPENUMPROC16)&thunk );
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}
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/***********************************************************************
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* THUNK_EnumProps32A (USER32.185)
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*/
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INT32 THUNK_EnumProps32A( HWND32 hwnd, PROPENUMPROC32A func )
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{
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DECL_THUNK( thunk, func, CallTo32_3 );
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return EnumProps32A( hwnd, (PROPENUMPROC32A)&thunk );
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}
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/***********************************************************************
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* THUNK_EnumProps32W (USER32.188)
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*/
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INT32 THUNK_EnumProps32W( HWND32 hwnd, PROPENUMPROC32W func )
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{
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DECL_THUNK( thunk, func, CallTo32_3 );
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return EnumProps32W( hwnd, (PROPENUMPROC32W)&thunk );
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}
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/***********************************************************************
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* THUNK_EnumPropsEx32A (USER32.186)
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*/
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INT32 THUNK_EnumPropsEx32A( HWND32 hwnd, PROPENUMPROCEX32A func, LPARAM lParam)
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{
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DECL_THUNK( thunk, func, CallTo32_4 );
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return EnumPropsEx32A( hwnd, (PROPENUMPROCEX32A)&thunk, lParam );
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}
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/***********************************************************************
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* THUNK_EnumPropsEx32W (USER32.187)
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*/
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INT32 THUNK_EnumPropsEx32W( HWND32 hwnd, PROPENUMPROCEX32W func, LPARAM lParam)
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{
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DECL_THUNK( thunk, func, CallTo32_4 );
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return EnumPropsEx32W( hwnd, (PROPENUMPROCEX32W)&thunk, lParam );
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}
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/***********************************************************************
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* THUNK_GrayString16 (USER.185)
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*/
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BOOL16 THUNK_GrayString16( HDC16 hdc, HBRUSH16 hbr, GRAYSTRINGPROC16 func,
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LPARAM lParam, INT16 cch, INT16 x, INT16 y,
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INT16 cx, INT16 cy )
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{
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DECL_THUNK( thunk, func, CallTo16_word_wlw );
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if (!func)
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return GrayString( hdc, hbr, NULL, lParam, cch, x, y, cx, cy );
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else
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return GrayString( hdc, hbr, (GRAYSTRINGPROC16)&thunk, lParam, cch,
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x, y, cx, cy );
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}
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