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 "debug.h"
  10 #include "windows.h"
  11 #include "callback.h"
  12 #include "task.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 /**********************************************************************
 122  *           CALLBACK_CallASPIPostProc
 123  */
 124 static LRESULT WINAPI CALLBACK_CallASPIPostProc( FARPROC16 proc, SEGPTR ptr )
 125 {
 126     return proc( ptr );
 127 }
 128
 129
 130 /**********************************************************************
 131  *           CALLBACK_CallWOWCallbackProc
 132  */
 133 static DWORD WINAPI CALLBACK_CallWOWCallbackProc( FARPROC16 proc, DWORD dw )
 134 {
 135     return proc( dw );
 136 }
 137
 138 /**********************************************************************
 139  *           CALLBACK_CallWOWCallback16Ex
 140  *
 141  * WCB16_MAX_CBARGS (16) is the maximum number of args.
 142  *
 143  * Can call functions using CDECL or PASCAL calling conventions. The CDECL
 144  * ones are reversed (not 100% sure about that).
 145  */
 146 static BOOL32 WINAPI CALLBACK_CallWOWCallback16Ex(
 147         FARPROC16 proc, DWORD dwFlags, DWORD cbArgs, LPVOID xargs,LPDWORD pdwret
 148 ) {
 149     LPDWORD     args = (LPDWORD)xargs;
 150     DWORD       ret,i;
 151
 152     if (dwFlags == WCB16_CDECL) {
 153         /* swap the arguments */
 154         args = HeapAlloc(GetProcessHeap(),0,cbArgs*sizeof(DWORD));
 155         for (i=0;i<cbArgs;i++)
 156                 args[i] = ((DWORD*)xargs)[cbArgs-i-1];
 157     }
 158     switch (cbArgs) {
 159     case 0: ret = proc();break;
 160     case 1: ret = proc(args[0]);break;
 161     case 2: ret = proc(args[0],args[1]);break;
 162     case 3: ret = proc(args[0],args[1],args[2]);break;
 163     case 4: ret = proc(args[0],args[1],args[2],args[3]);break;
 164     case 5: ret = proc(args[0],args[1],args[2],args[3],args[4]);break;
 165     case 6: ret = proc(args[0],args[1],args[2],args[3],args[4],args[5]);
 166             break;
 167     case 7: ret = proc(args[0],args[1],args[2],args[3],args[4],args[5],
 168                     args[6]
 169             );
 170             break;
 171     case 8: ret = proc(args[0],args[1],args[2],args[3],args[4],args[5],
 172                     args[6],args[7]
 173             );
 174             break;
 175     case 9: ret = proc(args[0],args[1],args[2],args[3],args[4],args[5],
 176                     args[6],args[7],args[8]
 177             );
 178             break;
 179     case 10:ret = proc(args[0],args[1],args[2],args[3],args[4],args[5],
 180                     args[6],args[7],args[8],args[9]
 181             );
 182             break;
 183     case 11:ret = proc(args[0],args[1],args[2],args[3],args[4],args[5],
 184                     args[6],args[7],args[8],args[9],args[10]
 185             );
 186             break;
 187     case 12:ret = proc(args[0],args[1],args[2],args[3],args[4],args[5],
 188                     args[6],args[7],args[8],args[9],args[10],args[11]
 189             );
 190             break;
 191     case 13:ret = proc(args[0],args[1],args[2],args[3],args[4],args[5],
 192                     args[6],args[7],args[8],args[9],args[10],args[11],
 193                     args[12]
 194             );
 195             break;
 196     case 14:ret = proc(args[0],args[1],args[2],args[3],args[4],args[5],
 197                     args[6],args[7],args[8],args[9],args[10],args[11],
 198                     args[12],args[13]
 199             );
 200             break;
 201     case 15:ret = proc(args[0],args[1],args[2],args[3],args[4],args[5],
 202                     args[6],args[7],args[8],args[9],args[10],args[11],
 203                     args[12],args[13],args[14]
 204             );
 205             break;
 206     case 16:ret = proc(args[0],args[1],args[2],args[3],args[4],args[5],
 207                     args[6],args[7],args[8],args[9],args[10],args[11],
 208                     args[12],args[13],args[14],args[15]
 209             );
 210             break;
 211     default:
 212             WARN(relay,"(%ld) arguments not supported.\n",cbArgs);
 213             if (dwFlags == WCB16_CDECL)
 214                 HeapFree(GetProcessHeap(),0,args);
 215             return FALSE;
 216     }
 217     if (dwFlags == WCB16_CDECL)
 218         HeapFree(GetProcessHeap(),0,args);
 219     if (pdwret)
 220         *pdwret = ret;
 221     return TRUE;
 222 }
 223
 224 /**********************************************************************
 225  *           CALLBACK_WinelibTable
 226  *
 227  * The callbacks function table for Winelib
 228  */
 229 static const CALLBACKS_TABLE CALLBACK_WinelibTable =
 230 {
 231     CALLBACK_CallRegisterProc,     /* CallRegisterShortProc */
 232     CALLBACK_CallRegisterProc,     /* CallRegisterLongProc */
 233     TASK_Reschedule,               /* CallTaskRescheduleProc */
 234     NULL,                          /* CallFrom16WndProc */
 235     CALLBACK_CallWndProc,          /* CallWndProc */
 236     CALLBACK_CallDriverProc,       /* CallDriverProc */
 237     CALLBACK_CallDriverCallback,   /* CallDriverCallback */
 238     CALLBACK_CallTimeFuncProc,     /* CallTimeFuncProc */
 239     CALLBACK_CallWindowsExitProc,  /* CallWindowsExitProc */
 240     CALLBACK_CallWordBreakProc,    /* CallWordBreakProc */
 241     CALLBACK_CallBootAppProc,      /* CallBootAppProc */
 242     CALLBACK_CallLoadAppSegProc,   /* CallLoadAppSegProc */
 243     CALLBACK_CallSystemTimerProc,  /* CallSystemTimerProc */
 244     CALLBACK_CallWOWCallbackProc,  /* CallWOWCallbackProc */
 245     CALLBACK_CallWOWCallback16Ex,  /* CallWOWCallback16Ex */
 246     CALLBACK_CallASPIPostProc,     /* CallASPIPostProc */
 247     /* The graphics driver callbacks are never used in Winelib */
 248     NULL,                          /* CallDrvControlProc */
 249     NULL,                          /* CallDrvEnableProc */
 250     NULL,                          /* CallDrvEnumDFontsProc */
 251     NULL,                          /* CallDrvEnumObjProc */
 252     NULL,                          /* CallDrvOutputProc */
 253     NULL,                          /* CallDrvRealizeProc */
 254     NULL,                          /* CallDrvStretchBltProc */
 255     NULL,                          /* CallDrvExtTextOutProc */
 256     NULL                           /* CallDrvGetCharWidth */
 257 };
 258
 259 const CALLBACKS_TABLE *Callbacks = &CALLBACK_WinelibTable;
 260
 261