misc/callback.c

   1 /*
   2  * Function callbacks for the library
   3  *
   4  * Copyright 1997 Alexandre Julliard
   5  */
   6
   7 #include <assert.h>
   8 #include "debug.h"
   9 #include "windows.h"
  10 #include "callback.h"
  11 #include "task.h"
  12 #include "syslevel.h"
  13
  14
  15 /**********************************************************************
  16  *           CALLBACK_CallWndProc
  17  */
  18 static LRESULT WINAPI CALLBACK_CallWndProc( WNDPROC16 proc, HWND16 hwnd,
  19                                             UINT16 msg, WPARAM16 wParam,
  20                                             LPARAM lParam )
  21 {
  22     return proc( hwnd, msg, wParam, lParam );
  23 }
  24
  25
  26 /**********************************************************************
  27  *           CALLBACK_CallRegisterProc
  28  */
  29 static LONG WINAPI CALLBACK_CallRegisterProc( CONTEXT *context, INT32 offset)
  30 {
  31     ERR(relay, "Cannot call a register proc in Winelib\n" );
  32     assert( FALSE );
  33     return 0;
  34 }
  35
  36
  37 /**********************************************************************
  38  *           CALLBACK_CallDriverProc
  39  */
  40 static LRESULT WINAPI CALLBACK_CallDriverProc( DRIVERPROC16 proc, DWORD dwId,
  41                                                HDRVR16 hdrvr, UINT16 msg,
  42                                                LPARAM lp1, LPARAM lp2 )
  43 {
  44     return proc( dwId, hdrvr, msg, lp1, lp2 );
  45 }
  46
  47
  48 /**********************************************************************
  49  *           CALLBACK_CallDriverCallback
  50  */
  51 static LRESULT WINAPI CALLBACK_CallDriverCallback( FARPROC16 proc,
  52                                                    HANDLE16 hDev, UINT16 msg,
  53                                                    DWORD dwUser, LPARAM lp1,
  54                                                    LPARAM lp2 )
  55 {
  56     return proc( hDev, msg, dwUser, lp1, lp2 );
  57 }
  58
  59
  60 /**********************************************************************
  61  *           CALLBACK_CallTimeFuncProc
  62  */
  63 static LRESULT WINAPI CALLBACK_CallTimeFuncProc( FARPROC16 proc, WORD id,
  64                                                  UINT16 msg, DWORD dwUser,
  65                                                  LPARAM lp1, LPARAM lp2 )
  66 {
  67     return proc( id, msg, dwUser, lp1, lp2 );
  68 }
  69
  70
  71 /**********************************************************************
  72  *           CALLBACK_CallWindowsExitProc
  73  */
  74 static INT16 WINAPI CALLBACK_CallWindowsExitProc( FARPROC16 proc, INT16 type)
  75 {
  76     return proc( type );
  77 }
  78
  79
  80 /**********************************************************************
  81  *           CALLBACK_CallWordBreakProc
  82  */
  83 static INT16 WINAPI CALLBACK_CallWordBreakProc( EDITWORDBREAKPROC16 proc,
  84                                                 SEGPTR text, INT16 word,
  85                                                 INT16 len, INT16 action )
  86 {
  87     return proc( (LPSTR)text, word, len, action );
  88 }
  89
  90
  91 /**********************************************************************
  92  *           CALLBACK_CallBootAppProc
  93  */
  94 static void WINAPI CALLBACK_CallBootAppProc( FARPROC16 proc, HANDLE16 module,
  95                                              HFILE16 file )
  96 {
  97     proc( module, file );
  98 }
  99
 100
 101 /**********************************************************************
 102  *           CALLBACK_CallLoadAppSegProc
 103  */
 104 static WORD WINAPI CALLBACK_CallLoadAppSegProc( FARPROC16 proc,
 105                                                 HANDLE16 module, HFILE16 file,
 106                                                 WORD seg )
 107 {
 108     return proc( module, file, seg );
 109 }
 110
 111
 112 /**********************************************************************
 113  *           CALLBACK_CallSystemTimerProc
 114  */
 115 static void WINAPI CALLBACK_CallSystemTimerProc( FARPROC16 proc )
 116 {
 117     proc();
 118 }
 119
 120 /**********************************************************************
 121  *           CALLBACK_CallResourceHandlerProc
 122  */
 123 static HGLOBAL16 WINAPI CALLBACK_CallResourceHandlerProc( FARPROC16 proc,
 124                                                           HGLOBAL16 hMemObj,
 125                                                           HMODULE16 hModule,
 126                                                           HRSRC16 hRsrc )
 127 {
 128     return proc( hMemObj, hModule, hRsrc );
 129 }
 130
 131
 132 /**********************************************************************
 133  *           CALLBACK_CallASPIPostProc
 134  */
 135 static LRESULT WINAPI CALLBACK_CallASPIPostProc( FARPROC16 proc, SEGPTR ptr )
 136 {
 137     return proc( ptr );
 138 }
 139
 140
 141 /**********************************************************************
 142  *           CALLBACK_CallWOWCallbackProc
 143  */
 144 static DWORD WINAPI CALLBACK_CallWOWCallbackProc( FARPROC16 proc, DWORD dw )
 145 {
 146     return proc( dw );
 147 }
 148
 149 /**********************************************************************
 150  *           CALLBACK_CallWOWCallback16Ex
 151  *
 152  * WCB16_MAX_CBARGS (16) is the maximum number of args.
 153  *
 154  * Can call functions using CDECL or PASCAL calling conventions. The CDECL
 155  * ones are reversed (not 100% sure about that).
 156  */
 157 static BOOL32 WINAPI CALLBACK_CallWOWCallback16Ex(
 158         FARPROC16 proc, DWORD dwFlags, DWORD cbArgs, LPVOID xargs,LPDWORD pdwret
 159 ) {
 160     LPDWORD     args = (LPDWORD)xargs;
 161     DWORD       ret,i;
 162
 163     if (dwFlags == WCB16_CDECL) {
 164         /* swap the arguments */
 165         args = HeapAlloc(GetProcessHeap(),0,cbArgs*sizeof(DWORD));
 166         for (i=0;i<cbArgs;i++)
 167                 args[i] = ((DWORD*)xargs)[cbArgs-i-1];
 168     }
 169     switch (cbArgs) {
 170     case 0: ret = proc();break;
 171     case 1: ret = proc(args[0]);break;
 172     case 2: ret = proc(args[0],args[1]);break;
 173     case 3: ret = proc(args[0],args[1],args[2]);break;
 174     case 4: ret = proc(args[0],args[1],args[2],args[3]);break;
 175     case 5: ret = proc(args[0],args[1],args[2],args[3],args[4]);break;
 176     case 6: ret = proc(args[0],args[1],args[2],args[3],args[4],args[5]);
 177             break;
 178     case 7: ret = proc(args[0],args[1],args[2],args[3],args[4],args[5],
 179                     args[6]
 180             );
 181             break;
 182     case 8: ret = proc(args[0],args[1],args[2],args[3],args[4],args[5],
 183                     args[6],args[7]
 184             );
 185             break;
 186     case 9: ret = proc(args[0],args[1],args[2],args[3],args[4],args[5],
 187                     args[6],args[7],args[8]
 188             );
 189             break;
 190     case 10:ret = proc(args[0],args[1],args[2],args[3],args[4],args[5],
 191                     args[6],args[7],args[8],args[9]
 192             );
 193             break;
 194     case 11:ret = proc(args[0],args[1],args[2],args[3],args[4],args[5],
 195                     args[6],args[7],args[8],args[9],args[10]
 196             );
 197             break;
 198     case 12:ret = proc(args[0],args[1],args[2],args[3],args[4],args[5],
 199                     args[6],args[7],args[8],args[9],args[10],args[11]
 200             );
 201             break;
 202     case 13:ret = proc(args[0],args[1],args[2],args[3],args[4],args[5],
 203                     args[6],args[7],args[8],args[9],args[10],args[11],
 204                     args[12]
 205             );
 206             break;
 207     case 14:ret = proc(args[0],args[1],args[2],args[3],args[4],args[5],
 208                     args[6],args[7],args[8],args[9],args[10],args[11],
 209                     args[12],args[13]
 210             );
 211             break;
 212     case 15:ret = proc(args[0],args[1],args[2],args[3],args[4],args[5],
 213                     args[6],args[7],args[8],args[9],args[10],args[11],
 214                     args[12],args[13],args[14]
 215             );
 216             break;
 217     case 16:ret = proc(args[0],args[1],args[2],args[3],args[4],args[5],
 218                     args[6],args[7],args[8],args[9],args[10],args[11],
 219                     args[12],args[13],args[14],args[15]
 220             );
 221             break;
 222     default:
 223             WARN(relay,"(%ld) arguments not supported.\n",cbArgs);
 224             if (dwFlags == WCB16_CDECL)
 225                 HeapFree(GetProcessHeap(),0,args);
 226             return FALSE;
 227     }
 228     if (dwFlags == WCB16_CDECL)
 229         HeapFree(GetProcessHeap(),0,args);
 230     if (pdwret)
 231         *pdwret = ret;
 232     return TRUE;
 233 }
 234
 235 /**********************************************************************
 236  *           CALLBACK_CallTaskRescheduleProc
 237  */
 238 static void WINAPI CALLBACK_CallTaskRescheduleProc( void )
 239 {
 240     SYSLEVEL_EnterWin16Lock();
 241     TASK_Reschedule();
 242     SYSLEVEL_LeaveWin16Lock();
 243 }
 244
 245
 246 /**********************************************************************
 247  *           CALLBACK_WinelibTable
 248  *
 249  * The callbacks function table for Winelib
 250  */
 251 static const CALLBACKS_TABLE CALLBACK_WinelibTable =
 252 {
 253     CALLBACK_CallRegisterProc,        /* CallRegisterShortProc */
 254     CALLBACK_CallRegisterProc,        /* CallRegisterLongProc */
 255     CALLBACK_CallTaskRescheduleProc,  /* CallTaskRescheduleProc */
 256     NULL,                             /* CallFrom16WndProc */
 257     CALLBACK_CallWndProc,             /* CallWndProc */
 258     CALLBACK_CallDriverProc,          /* CallDriverProc */
 259     CALLBACK_CallDriverCallback,      /* CallDriverCallback */
 260     CALLBACK_CallTimeFuncProc,        /* CallTimeFuncProc */
 261     CALLBACK_CallWindowsExitProc,     /* CallWindowsExitProc */
 262     CALLBACK_CallWordBreakProc,       /* CallWordBreakProc */
 263     CALLBACK_CallBootAppProc,         /* CallBootAppProc */
 264     CALLBACK_CallLoadAppSegProc,      /* CallLoadAppSegProc */
 265     CALLBACK_CallSystemTimerProc,     /* CallSystemTimerProc */
 266     CALLBACK_CallResourceHandlerProc, /* CallResourceHandlerProc */
 267     NULL,                             /* CallPostAppMessageProc */
 268     CALLBACK_CallWOWCallbackProc,     /* CallWOWCallbackProc */
 269     CALLBACK_CallWOWCallback16Ex,     /* CallWOWCallback16Ex */
 270     CALLBACK_CallASPIPostProc,        /* CallASPIPostProc */
 271     /* The graphics driver callbacks are never used in Winelib */
 272     NULL,                             /* CallDrvControlProc */
 273     NULL,                             /* CallDrvEnableProc */
 274     NULL,                             /* CallDrvEnumDFontsProc */
 275     NULL,                             /* CallDrvEnumObjProc */
 276     NULL,                             /* CallDrvOutputProc */
 277     NULL,                             /* CallDrvRealizeProc */
 278     NULL,                             /* CallDrvStretchBltProc */
 279     NULL,                             /* CallDrvExtTextOutProc */
 280     NULL,                             /* CallDrvGetCharWidth */
 281     NULL                              /* CallDrvAbortProc */
 282 };
 283
 284 const CALLBACKS_TABLE *Callbacks = &CALLBACK_WinelibTable;
 285
 286