misc/callback.c

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