git.oblomov.eu Git - wine/blob - dlls/msvideo/msvideo_main.c

   1 /*
   2  * Copyright 1998 Marcus Meissner
   3  * Copyright 2000 Bradley Baetz
   4  * Copyright 2003 Michael Günnewig
   5  *
   6  * This library is free software; you can redistribute it and/or
   7  * modify it under the terms of the GNU Lesser General Public
   8  * License as published by the Free Software Foundation; either
   9  * version 2.1 of the License, or (at your option) any later version.
  10  *
  11  * This library is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14  * Lesser General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU Lesser General Public
  17  * License along with this library; if not, write to the Free Software
  18  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  19  *
  20  * FIXME: This all assumes 32 bit codecs
  21  *              Win95 appears to prefer 32 bit codecs, even from 16 bit code.
  22  *              There is the ICOpenFunction16 to worry about still, though.
  23  *
  24  * TODO
  25  *      - no thread safety
  26  */
  27
  28 #include <stdio.h>
  29 #include <string.h>
  30
  31 #include "msvideo_private.h"
  32 #include "winnls.h"
  33 #include "wingdi.h"
  34 #include "winuser.h"
  35
  36 #include "windowsx.h"
  37
  38 #include "wine/debug.h"
  39
  40 WINE_DEFAULT_DEBUG_CHANNEL(msvideo);
  41
  42 static inline const char *wine_dbgstr_fcc( DWORD fcc )
  43 {
  44     return wine_dbg_sprintf("%c%c%c%c",
  45                             LOBYTE(LOWORD(fcc)), HIBYTE(LOWORD(fcc)),
  46                             LOBYTE(HIWORD(fcc)), HIBYTE(HIWORD(fcc)));
  47 }
  48
  49 LRESULT (CALLBACK *pFnCallTo16)(HDRVR, HIC, UINT, LPARAM, LPARAM) = NULL;
  50
  51 static WINE_HIC*        MSVIDEO_FirstHic /* = NULL */;
  52
  53 typedef struct _reg_driver reg_driver;
  54 struct _reg_driver
  55 {
  56     DWORD       fccType;
  57     DWORD       fccHandler;
  58     DRIVERPROC  proc;
  59     LPWSTR      name;
  60     reg_driver* next;
  61 };
  62
  63 static reg_driver* reg_driver_list = NULL;
  64
  65 HMODULE MSVFW32_hModule;
  66
  67 BOOL WINAPI DllMain( HINSTANCE hinst, DWORD reason, LPVOID reserved )
  68 {
  69     TRACE("%p,%lx,%p\n", hinst, reason, reserved);
  70
  71     switch(reason)
  72     {
  73         case DLL_PROCESS_ATTACH:
  74             DisableThreadLibraryCalls(hinst);
  75             MSVFW32_hModule = (HMODULE)hinst;
  76             break;
  77     }
  78     return TRUE;
  79 }
  80
  81 static int compare_fourcc(DWORD fcc1, DWORD fcc2)
  82 {
  83   char fcc_str1[5];
  84   char fcc_str2[5];
  85   fcc_str1[0] = LOBYTE(LOWORD(fcc1));
  86   fcc_str1[1] = HIBYTE(LOWORD(fcc1));
  87   fcc_str1[2] = LOBYTE(HIWORD(fcc1));
  88   fcc_str1[3] = HIBYTE(HIWORD(fcc1));
  89   fcc_str1[4] = 0;
  90   fcc_str2[0] = LOBYTE(LOWORD(fcc2));
  91   fcc_str2[1] = HIBYTE(LOWORD(fcc2));
  92   fcc_str2[2] = LOBYTE(HIWORD(fcc2));
  93   fcc_str2[3] = HIBYTE(HIWORD(fcc2));
  94   fcc_str2[4] = 0;
  95
  96   return strcasecmp(fcc_str1,fcc_str2);
  97 }
  98
  99 /******************************************************************
 100  *              MSVIDEO_GetHicPtr
 101  *
 102  *
 103  */
 104 WINE_HIC*   MSVIDEO_GetHicPtr(HIC hic)
 105 {
 106     WINE_HIC*   whic;
 107
 108     for (whic = MSVIDEO_FirstHic; whic && whic->hic != hic; whic = whic->next);
 109     return whic;
 110 }
 111
 112 /***********************************************************************
 113  *              VideoForWindowsVersion          [MSVFW32.2]
 114  *              VideoForWindowsVersion          [MSVIDEO.2]
 115  * Returns the version in major.minor form.
 116  * In Windows95 this returns 0x040003b6 (4.950)
 117  */
 118 DWORD WINAPI VideoForWindowsVersion(void)
 119 {
 120     return 0x040003B6; /* 4.950 */
 121 }
 122
 123 /* system.ini: [drivers] */
 124
 125 /***********************************************************************
 126  *              ICInfo                          [MSVFW32.@]
 127  * Get information about an installable compressor. Return TRUE if there
 128  * is one.
 129  */
 130 BOOL VFWAPI ICInfo(
 131         DWORD fccType,          /* [in] type of compressor ('vidc') */
 132         DWORD fccHandler,       /* [in] real fcc for handler or <n>th compressor */
 133         ICINFO *lpicinfo)       /* [out] information about compressor */
 134 {
 135     char        buf[2000];
 136
 137     TRACE("(%s,%s/%08lx,%p)\n",
 138           wine_dbgstr_fcc(fccType), wine_dbgstr_fcc(fccHandler), fccHandler, lpicinfo);
 139
 140     if (GetPrivateProfileSectionA("drivers32", buf, sizeof(buf), "system.ini"))
 141     {
 142         char    fccTypeStr[4];
 143         char    fccHandlerStr[4];
 144         char*   s;
 145
 146         fccTypeStr[0] = LOBYTE(LOWORD(fccType));
 147         fccTypeStr[1] = HIBYTE(LOWORD(fccType));
 148         fccTypeStr[2] = LOBYTE(HIWORD(fccType));
 149         fccTypeStr[3] = HIBYTE(HIWORD(fccType));
 150
 151         fccHandlerStr[0] = LOBYTE(LOWORD(fccHandler));
 152         fccHandlerStr[1] = HIBYTE(LOWORD(fccHandler));
 153         fccHandlerStr[2] = LOBYTE(HIWORD(fccHandler));
 154         fccHandlerStr[3] = HIBYTE(HIWORD(fccHandler));
 155
 156         for (s = buf; *s; s += strlen(s) + 1)
 157         {
 158             if (!strncasecmp(fccTypeStr, s, 4) && s[4] == '.' && s[9] == '=' &&
 159                 (!fccHandler-- || !strncasecmp(fccHandlerStr, s + 5, 4)))
 160             {
 161                 /* exact match of fccHandler or nth driver found ?? */
 162                 lpicinfo->fccType = fccType;
 163                 lpicinfo->fccHandler = mmioStringToFOURCCA(s + 5, 0);
 164                 lpicinfo->dwFlags = 0;
 165                 lpicinfo->dwVersion = 0;
 166                 lpicinfo->dwVersionICM = 0x104;
 167                 lpicinfo->szName[0] = 0;
 168                 lpicinfo->szDescription[0] = 0;
 169                 MultiByteToWideChar(CP_ACP, 0, s + 10, -1,
 170                                     lpicinfo->szDriver,
 171                                     sizeof(lpicinfo->szDriver)/sizeof(WCHAR));
 172                 return TRUE;
 173             }
 174         }
 175     }
 176     return FALSE;
 177 }
 178
 179 static DWORD IC_HandleRef = 1;
 180
 181 /***********************************************************************
 182  *              ICInstall                       [MSVFW32.@]
 183  */
 184 BOOL VFWAPI ICInstall(DWORD fccType, DWORD fccHandler, LPARAM lParam, LPSTR szDesc, UINT wFlags)
 185 {
 186     reg_driver* driver;
 187     unsigned len;
 188
 189     TRACE("(%s,%s,%p,%p,0x%08x)\n", wine_dbgstr_fcc(fccType), wine_dbgstr_fcc(fccHandler), (void*)lParam, szDesc, wFlags);
 190
 191     /* Check if a driver is already registered */
 192     for (driver = reg_driver_list; driver; driver = driver->next)
 193     {
 194         if (!compare_fourcc(fccType, driver->fccType) &&
 195             !compare_fourcc(fccHandler, driver->fccHandler))
 196             break;
 197     }
 198     if (driver) return FALSE;
 199
 200     /* Register the driver */
 201     driver = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(reg_driver));
 202     if (!driver) goto oom;
 203     driver->fccType = fccType;
 204     driver->fccHandler = fccHandler;
 205
 206     switch(wFlags)
 207     {
 208     case ICINSTALL_FUNCTION:
 209         driver->proc = (DRIVERPROC)lParam;
 210         driver->name = NULL;
 211         break;
 212     case ICINSTALL_DRIVER:
 213         driver->proc = NULL;
 214         len = MultiByteToWideChar(CP_ACP, 0, (char*)lParam, -1, NULL, 0);
 215         driver->name = HeapAlloc(GetProcessHeap(), 0, len * sizeof(WCHAR));
 216         if (!driver->name) goto oom;
 217         MultiByteToWideChar(CP_ACP, 0, (char*)lParam, -1, driver->name, len);
 218         break;
 219     default:
 220         ERR("Invalid flags!\n");
 221         HeapFree(GetProcessHeap(), 0, driver);
 222         return FALSE;
 223    }
 224
 225    /* Insert our driver in the list*/
 226    driver->next = reg_driver_list;
 227    reg_driver_list = driver;
 228
 229    return TRUE;
 230  oom:
 231    if (driver) HeapFree(GetProcessHeap(), 0, driver);
 232    return FALSE;
 233 }
 234
 235 /***********************************************************************
 236  *              ICRemove                        [MSVFW32.@]
 237  */
 238 BOOL VFWAPI ICRemove(DWORD fccType, DWORD fccHandler, UINT wFlags)
 239 {
 240     reg_driver** pdriver;
 241
 242     TRACE("(%s,%s,0x%08x)\n", wine_dbgstr_fcc(fccType), wine_dbgstr_fcc(fccHandler), wFlags);
 243
 244     /* Check if a driver is already registered */
 245     for (pdriver = &reg_driver_list; *pdriver; pdriver = &(*pdriver)->next)
 246     {
 247         if (!compare_fourcc(fccType, (*pdriver)->fccType) &&
 248             !compare_fourcc(fccHandler, (*pdriver)->fccHandler))
 249             break;
 250     }
 251     if (!*pdriver)
 252         return FALSE;
 253
 254     /* Remove the driver from the list */
 255     *pdriver = (*pdriver)->next;
 256     if ((*pdriver)->name)
 257         HeapFree(GetProcessHeap(), 0, (*pdriver)->name);
 258     HeapFree(GetProcessHeap(), 0, *pdriver);
 259
 260     return TRUE;
 261 }
 262
 263
 264 /***********************************************************************
 265  *              ICOpen                          [MSVFW32.@]
 266  * Opens an installable compressor. Return special handle.
 267  */
 268 HIC VFWAPI ICOpen(DWORD fccType, DWORD fccHandler, UINT wMode)
 269 {
 270     WCHAR               codecname[10];
 271     ICOPEN              icopen;
 272     HDRVR               hdrv;
 273     WINE_HIC*           whic;
 274     BOOL                bIs16;
 275     static WCHAR        drv32W[] = {'d','r','i','v','e','r','s','3','2','\0'};
 276     reg_driver*         driver;
 277
 278     TRACE("(%s,%s,0x%08x)\n", wine_dbgstr_fcc(fccType), wine_dbgstr_fcc(fccHandler), wMode);
 279
 280     /* Check if there is a registered driver that matches */
 281     driver = reg_driver_list;
 282     while(driver)
 283         if (!compare_fourcc(fccType, driver->fccType) &&
 284             !compare_fourcc(fccHandler, driver->fccHandler))
 285             break;
 286         else
 287             driver = driver->next;
 288
 289     if (driver && driver->proc)
 290         /* The driver has been registered at runtime with its driverproc */
 291         return MSVIDEO_OpenFunction(fccType, fccHandler, wMode, (DRIVERPROC)driver->proc, (DWORD)NULL);
 292
 293     /* Well, lParam2 is in fact a LPVIDEO_OPEN_PARMS, but it has the
 294      * same layout as ICOPEN
 295      */
 296     icopen.dwSize               = sizeof(ICOPEN);
 297     icopen.fccType              = fccType;
 298     icopen.fccHandler           = fccHandler;
 299     icopen.dwVersion            = 0x00001000; /* FIXME */
 300     icopen.dwFlags              = wMode;
 301     icopen.dwError              = 0;
 302     icopen.pV1Reserved          = NULL;
 303     icopen.pV2Reserved          = NULL;
 304     icopen.dnDevNode            = 0; /* FIXME */
 305
 306     if (!driver) {
 307         /* The driver is registered in the registry */
 308         codecname[0] = LOBYTE(LOWORD(fccType));
 309         codecname[1] = HIBYTE(LOWORD(fccType));
 310         codecname[2] = LOBYTE(HIWORD(fccType));
 311         codecname[3] = HIBYTE(HIWORD(fccType));
 312         codecname[4] = '.';
 313         codecname[5] = LOBYTE(LOWORD(fccHandler));
 314         codecname[6] = HIBYTE(LOWORD(fccHandler));
 315         codecname[7] = LOBYTE(HIWORD(fccHandler));
 316         codecname[8] = HIBYTE(HIWORD(fccHandler));
 317         codecname[9] = '\0';
 318
 319         hdrv = OpenDriver(codecname, drv32W, (LPARAM)&icopen);
 320         if (!hdrv)
 321         {
 322             if (fccType == streamtypeVIDEO)
 323             {
 324                 codecname[0] = 'v';
 325                 codecname[1] = 'i';
 326                 codecname[2] = 'd';
 327                 codecname[3] = 'c';
 328
 329                 fccType = ICTYPE_VIDEO;
 330                 hdrv = OpenDriver(codecname, drv32W, (LPARAM)&icopen);
 331             }
 332             if (!hdrv)
 333                 return 0;
 334         }
 335     } else {
 336         /* The driver has been registered at runtime with its name */
 337         hdrv = OpenDriver(driver->name, NULL, (LPARAM)&icopen);
 338         if (!hdrv)
 339             return 0;
 340     }
 341     bIs16 = GetDriverFlags(hdrv) & 0x10000000; /* undocumented flag: WINE_GDF_16BIT */
 342
 343     if (bIs16 && !pFnCallTo16)
 344     {
 345         FIXME("Got a 16 bit driver, but no 16 bit support in msvfw\n");
 346         return 0;
 347     }
 348     whic = HeapAlloc(GetProcessHeap(), 0, sizeof(WINE_HIC));
 349     if (!whic)
 350     {
 351         CloseDriver(hdrv, 0, 0);
 352         return FALSE;
 353     }
 354     whic->hdrv          = hdrv;
 355     /* FIXME: is the signature the real one ? */
 356     whic->driverproc    = bIs16 ? (DRIVERPROC)pFnCallTo16 : NULL;
 357     whic->driverproc16  = 0;
 358     whic->type          = fccType;
 359     whic->handler       = fccHandler;
 360     while (MSVIDEO_GetHicPtr(HIC_32(IC_HandleRef)) != NULL) IC_HandleRef++;
 361     whic->hic           = HIC_32(IC_HandleRef++);
 362     whic->next          = MSVIDEO_FirstHic;
 363     MSVIDEO_FirstHic = whic;
 364
 365     TRACE("=> %p\n", whic->hic);
 366     return whic->hic;
 367 }
 368
 369 /***********************************************************************
 370  *              MSVIDEO_OpenFunction
 371  */
 372 HIC MSVIDEO_OpenFunction(DWORD fccType, DWORD fccHandler, UINT wMode,
 373                          DRIVERPROC lpfnHandler, DWORD lpfnHandler16)
 374 {
 375     ICOPEN      icopen;
 376     WINE_HIC*   whic;
 377
 378     TRACE("(%s,%s,%d,%p,%08lx)\n",
 379           wine_dbgstr_fcc(fccType), wine_dbgstr_fcc(fccHandler), wMode, lpfnHandler, lpfnHandler16);
 380
 381     icopen.dwSize               = sizeof(ICOPEN);
 382     icopen.fccType              = fccType;
 383     icopen.fccHandler           = fccHandler;
 384     icopen.dwVersion            = 0x00001000; /* FIXME */
 385     icopen.dwFlags              = wMode;
 386     icopen.dwError              = 0;
 387     icopen.pV1Reserved          = NULL;
 388     icopen.pV2Reserved          = NULL;
 389     icopen.dnDevNode            = 0; /* FIXME */
 390
 391     whic = HeapAlloc(GetProcessHeap(), 0, sizeof(WINE_HIC));
 392     if (!whic) return 0;
 393
 394     whic->driverproc   = lpfnHandler;
 395     whic->driverproc16 = lpfnHandler16;
 396     while (MSVIDEO_GetHicPtr(HIC_32(IC_HandleRef)) != NULL) IC_HandleRef++;
 397     whic->hic          = HIC_32(IC_HandleRef++);
 398     whic->next         = MSVIDEO_FirstHic;
 399     MSVIDEO_FirstHic = whic;
 400
 401     /* Now try opening/loading the driver. Taken from DRIVER_AddToList */
 402     /* What if the function is used more than once? */
 403
 404     if (MSVIDEO_SendMessage(whic, DRV_LOAD, 0L, 0L) != DRV_SUCCESS)
 405     {
 406         WARN("DRV_LOAD failed for hic %p\n", whic->hic);
 407         MSVIDEO_FirstHic = whic->next;
 408         HeapFree(GetProcessHeap(), 0, whic);
 409         return 0;
 410     }
 411     /* return value is not checked */
 412     MSVIDEO_SendMessage(whic, DRV_ENABLE, 0L, 0L);
 413
 414     whic->driverId = (DWORD)MSVIDEO_SendMessage(whic, DRV_OPEN, 0, (DWORD)&icopen);
 415     /* FIXME: What should we put here? */
 416     whic->hdrv = (HDRVR)0;
 417
 418     if (whic->driverId == 0)
 419     {
 420         WARN("DRV_OPEN failed for hic %p\n", whic->hic);
 421         MSVIDEO_FirstHic = whic->next;
 422         HeapFree(GetProcessHeap(), 0, whic);
 423         return 0;
 424     }
 425
 426     TRACE("=> %p\n", whic->hic);
 427     return whic->hic;
 428 }
 429
 430 /***********************************************************************
 431  *              ICOpenFunction                  [MSVFW32.@]
 432  */
 433 HIC VFWAPI ICOpenFunction(DWORD fccType, DWORD fccHandler, UINT wMode, FARPROC lpfnHandler)
 434 {
 435     return MSVIDEO_OpenFunction(fccType, fccHandler, wMode, (DRIVERPROC)lpfnHandler, 0);
 436 }
 437
 438 /***********************************************************************
 439  *              ICGetInfo                       [MSVFW32.@]
 440  */
 441 LRESULT VFWAPI ICGetInfo(HIC hic, ICINFO *picinfo, DWORD cb)
 442 {
 443     LRESULT     ret;
 444     WINE_HIC*   whic = MSVIDEO_GetHicPtr(hic);
 445
 446     TRACE("(%p,%p,%ld)\n", hic, picinfo, cb);
 447
 448     whic = MSVIDEO_GetHicPtr(hic);
 449     if (!whic) return ICERR_BADHANDLE;
 450     if (!picinfo) return MMSYSERR_INVALPARAM;
 451
 452     /* (WS) The field szDriver should be initialized because the driver
 453      * is not obliged and often will not do it. Some applications, like
 454      * VirtualDub, rely on this field and will occasionally crash if it
 455      * goes unitialized.
 456      */
 457     if (cb >= sizeof(ICINFO)) picinfo->szDriver[0] = '\0';
 458
 459     ret = ICSendMessage(hic, ICM_GETINFO, (DWORD)picinfo, cb);
 460
 461     /* (WS) When szDriver was not supplied by the driver itself, apparently
 462      * Windows will set its value equal to the driver file name. This can
 463      * be obtained from the registry as we do here.
 464      */
 465     if (cb >= sizeof(ICINFO) && picinfo->szDriver[0] == 0)
 466     {
 467         ICINFO  ii;
 468
 469         memset(&ii, 0, sizeof(ii));
 470         ii.dwSize = sizeof(ii);
 471         ICInfo(picinfo->fccType, picinfo->fccHandler, &ii);
 472         lstrcpyW(picinfo->szDriver, ii.szDriver);
 473     }
 474
 475     TRACE("     -> 0x%08lx\n", ret);
 476     return ret;
 477 }
 478
 479 /***********************************************************************
 480  *              ICLocate                        [MSVFW32.@]
 481  */
 482 HIC VFWAPI ICLocate(DWORD fccType, DWORD fccHandler, LPBITMAPINFOHEADER lpbiIn,
 483                     LPBITMAPINFOHEADER lpbiOut, WORD wMode)
 484 {
 485     HIC         hic;
 486     DWORD       querymsg;
 487     LPSTR       pszBuffer;
 488
 489     TRACE("(%s,%s,%p,%p,0x%04x)\n",
 490           wine_dbgstr_fcc(fccType), wine_dbgstr_fcc(fccHandler), lpbiIn, lpbiOut, wMode);
 491
 492     switch (wMode)
 493     {
 494     case ICMODE_FASTCOMPRESS:
 495     case ICMODE_COMPRESS:
 496         querymsg = ICM_COMPRESS_QUERY;
 497         break;
 498     case ICMODE_FASTDECOMPRESS:
 499     case ICMODE_DECOMPRESS:
 500         querymsg = ICM_DECOMPRESS_QUERY;
 501         break;
 502     case ICMODE_DRAW:
 503         querymsg = ICM_DRAW_QUERY;
 504         break;
 505     default:
 506         WARN("Unknown mode (%d)\n", wMode);
 507         return 0;
 508     }
 509
 510     /* Easy case: handler/type match, we just fire a query and return */
 511     hic = ICOpen(fccType, fccHandler, wMode);
 512     if (hic)
 513     {
 514         if (!ICSendMessage(hic, querymsg, (DWORD)lpbiIn, (DWORD)lpbiOut))
 515         {
 516             TRACE("=> %p\n", hic);
 517             return hic;
 518         }
 519         ICClose(hic);
 520     }
 521
 522     /* Now try each driver in turn. 32 bit codecs only. */
 523     /* FIXME: Move this to an init routine? */
 524
 525     pszBuffer = (LPSTR)HeapAlloc(GetProcessHeap(), 0, 1024);
 526     if (GetPrivateProfileSectionA("drivers32", pszBuffer, 1024, "system.ini"))
 527     {
 528         char* s = pszBuffer;
 529         char  fcc[4];
 530
 531         while (*s)
 532         {
 533             fcc[0] = LOBYTE(LOWORD(fccType));
 534             fcc[1] = HIBYTE(LOWORD(fccType));
 535             fcc[2] = LOBYTE(HIWORD(fccType));
 536             fcc[3] = HIBYTE(HIWORD(fccType));
 537             if (!strncasecmp(fcc, s, 4) && s[4] == '.' && s[9] == '=')
 538             {
 539                 char *s2 = s;
 540                 while (*s2 != '\0' && *s2 != '.') s2++;
 541                 if (*s2++)
 542                 {
 543                     hic = ICOpen(fccType, mmioStringToFOURCCA(s2, 0), wMode);
 544                     if (hic)
 545                     {
 546                         if (!ICSendMessage(hic, querymsg, (DWORD)lpbiIn, (DWORD)lpbiOut))
 547                         {
 548                             HeapFree(GetProcessHeap(), 0, pszBuffer);
 549                             TRACE("=> %p\n", hic);
 550                             return hic;
 551                         }
 552                         ICClose(hic);
 553                     }
 554                 }
 555             }
 556             s += strlen(s) + 1;
 557         }
 558     }
 559     HeapFree(GetProcessHeap(), 0, pszBuffer);
 560
 561     if (fccType == streamtypeVIDEO)
 562         return ICLocate(ICTYPE_VIDEO, fccHandler, lpbiIn, lpbiOut, wMode);
 563
 564     WARN("(%s,%s,%p,%p,0x%04x) not found!\n",
 565          wine_dbgstr_fcc(fccType), wine_dbgstr_fcc(fccHandler), lpbiIn, lpbiOut, wMode);
 566     return 0;
 567 }
 568
 569 /***********************************************************************
 570  *              ICGetDisplayFormat                      [MSVFW32.@]
 571  */
 572 HIC VFWAPI ICGetDisplayFormat(
 573         HIC hic,LPBITMAPINFOHEADER lpbiIn,LPBITMAPINFOHEADER lpbiOut,
 574         INT depth,INT dx,INT dy)
 575 {
 576         HIC     tmphic = hic;
 577
 578         TRACE("(%p,%p,%p,%d,%d,%d)!\n",hic,lpbiIn,lpbiOut,depth,dx,dy);
 579
 580         if (!tmphic) {
 581                 tmphic=ICLocate(ICTYPE_VIDEO,0,lpbiIn,NULL,ICMODE_DECOMPRESS);
 582                 if (!tmphic)
 583                         return tmphic;
 584         }
 585         if ((dy == lpbiIn->biHeight) && (dx == lpbiIn->biWidth))
 586                 dy = dx = 0; /* no resize needed */
 587
 588         /* Can we decompress it ? */
 589         if (ICDecompressQuery(tmphic,lpbiIn,NULL) != 0)
 590                 goto errout; /* no, sorry */
 591
 592         ICDecompressGetFormat(tmphic,lpbiIn,lpbiOut);
 593
 594         if (lpbiOut->biCompression != 0) {
 595            FIXME("Ooch, how come decompressor outputs compressed data (%ld)??\n",
 596                          lpbiOut->biCompression);
 597         }
 598         if (lpbiOut->biSize < sizeof(*lpbiOut)) {
 599            FIXME("Ooch, size of output BIH is too small (%ld)\n",
 600                          lpbiOut->biSize);
 601            lpbiOut->biSize = sizeof(*lpbiOut);
 602         }
 603         if (!depth) {
 604                 HDC     hdc;
 605
 606                 hdc = GetDC(0);
 607                 depth = GetDeviceCaps(hdc,BITSPIXEL)*GetDeviceCaps(hdc,PLANES);
 608                 ReleaseDC(0,hdc);
 609                 if (depth==15)  depth = 16;
 610                 if (depth<8)    depth =  8;
 611         }
 612         if (lpbiIn->biBitCount == 8)
 613                 depth = 8;
 614
 615         TRACE("=> %p\n", tmphic);
 616         return tmphic;
 617 errout:
 618         if (hic!=tmphic)
 619                 ICClose(tmphic);
 620
 621         TRACE("=> 0\n");
 622         return 0;
 623 }
 624
 625 /***********************************************************************
 626  *              ICCompress                      [MSVFW32.@]
 627  */
 628 DWORD VFWAPIV
 629 ICCompress(
 630         HIC hic,DWORD dwFlags,LPBITMAPINFOHEADER lpbiOutput,LPVOID lpData,
 631         LPBITMAPINFOHEADER lpbiInput,LPVOID lpBits,LPDWORD lpckid,
 632         LPDWORD lpdwFlags,LONG lFrameNum,DWORD dwFrameSize,DWORD dwQuality,
 633         LPBITMAPINFOHEADER lpbiPrev,LPVOID lpPrev)
 634 {
 635         ICCOMPRESS      iccmp;
 636
 637         TRACE("(%p,%ld,%p,%p,%p,%p,...)\n",hic,dwFlags,lpbiOutput,lpData,lpbiInput,lpBits);
 638
 639         iccmp.dwFlags           = dwFlags;
 640
 641         iccmp.lpbiOutput        = lpbiOutput;
 642         iccmp.lpOutput          = lpData;
 643         iccmp.lpbiInput         = lpbiInput;
 644         iccmp.lpInput           = lpBits;
 645
 646         iccmp.lpckid            = lpckid;
 647         iccmp.lpdwFlags         = lpdwFlags;
 648         iccmp.lFrameNum         = lFrameNum;
 649         iccmp.dwFrameSize       = dwFrameSize;
 650         iccmp.dwQuality         = dwQuality;
 651         iccmp.lpbiPrev          = lpbiPrev;
 652         iccmp.lpPrev            = lpPrev;
 653         return ICSendMessage(hic,ICM_COMPRESS,(DWORD)&iccmp,sizeof(iccmp));
 654 }
 655
 656 /***********************************************************************
 657  *              ICDecompress                    [MSVFW32.@]
 658  */
 659 DWORD VFWAPIV  ICDecompress(HIC hic,DWORD dwFlags,LPBITMAPINFOHEADER lpbiFormat,
 660                                 LPVOID lpData,LPBITMAPINFOHEADER lpbi,LPVOID lpBits)
 661 {
 662         ICDECOMPRESS    icd;
 663         DWORD ret;
 664
 665         TRACE("(%p,%ld,%p,%p,%p,%p)\n",hic,dwFlags,lpbiFormat,lpData,lpbi,lpBits);
 666
 667         TRACE("lpBits[0] == %lx\n",((LPDWORD)lpBits)[0]);
 668
 669         icd.dwFlags     = dwFlags;
 670         icd.lpbiInput   = lpbiFormat;
 671         icd.lpInput     = lpData;
 672
 673         icd.lpbiOutput  = lpbi;
 674         icd.lpOutput    = lpBits;
 675         icd.ckid        = 0;
 676         ret = ICSendMessage(hic,ICM_DECOMPRESS,(DWORD)&icd,sizeof(ICDECOMPRESS));
 677
 678         TRACE("lpBits[0] == %lx\n",((LPDWORD)lpBits)[0]);
 679
 680         TRACE("-> %ld\n",ret);
 681
 682         return ret;
 683 }
 684
 685
 686 /***********************************************************************
 687  *              ICCompressorChoose   [MSVFW32.@]
 688  */
 689 BOOL VFWAPI ICCompressorChoose(HWND hwnd, UINT uiFlags, LPVOID pvIn,
 690                                LPVOID lpData, PCOMPVARS pc, LPSTR lpszTitle)
 691 {
 692   FIXME("(%p,0x%X,%p,%p,%p,%s),stub!\n",hwnd,uiFlags,pvIn,lpData,pc,lpszTitle);
 693
 694   if (pc == NULL || pc->cbSize != sizeof(COMPVARS))
 695     return FALSE;
 696
 697   if ((pc->dwFlags & ICMF_COMPVARS_VALID) == 0) {
 698     pc->dwFlags   = 0;
 699     pc->fccType   = pc->fccHandler = 0;
 700     pc->hic       = NULL;
 701     pc->lpbiOut   = NULL;
 702     pc->lpBitsOut = pc->lpBitsPrev = pc->lpState = NULL;
 703     pc->lQ        = ICQUALITY_DEFAULT;
 704     pc->lKey      = -1;
 705     pc->lDataRate = 300; /* kB */
 706     pc->lpState   = NULL;
 707     pc->cbState   = 0;
 708   }
 709   if (pc->fccType == 0)
 710     pc->fccType = ICTYPE_VIDEO;
 711
 712   /* FIXME */
 713
 714   return FALSE;
 715 }
 716
 717
 718 /***********************************************************************
 719  *              ICCompressorFree   [MSVFW32.@]
 720  */
 721 void VFWAPI ICCompressorFree(PCOMPVARS pc)
 722 {
 723   TRACE("(%p)\n",pc);
 724
 725   if (pc != NULL && pc->cbSize == sizeof(COMPVARS)) {
 726     if (pc->hic != NULL) {
 727       ICClose(pc->hic);
 728       pc->hic = NULL;
 729     }
 730     if (pc->lpbiOut != NULL) {
 731       GlobalFreePtr(pc->lpbiOut);
 732       pc->lpbiOut = NULL;
 733     }
 734     if (pc->lpBitsOut != NULL) {
 735       GlobalFreePtr(pc->lpBitsOut);
 736       pc->lpBitsOut = NULL;
 737     }
 738     if (pc->lpBitsPrev != NULL) {
 739       GlobalFreePtr(pc->lpBitsPrev);
 740       pc->lpBitsPrev = NULL;
 741     }
 742     if (pc->lpState != NULL) {
 743       GlobalFreePtr(pc->lpBitsPrev);
 744       pc->lpState = NULL;
 745     }
 746     pc->dwFlags = 0;
 747   }
 748 }
 749
 750
 751 /******************************************************************
 752  *              MSVIDEO_SendMessage
 753  *
 754  *
 755  */
 756 LRESULT MSVIDEO_SendMessage(WINE_HIC* whic, UINT msg, DWORD lParam1, DWORD lParam2)
 757 {
 758     LRESULT     ret;
 759
 760 #define XX(x) case x: TRACE("(%p,"#x",0x%08lx,0x%08lx)\n",whic,lParam1,lParam2); break;
 761
 762     switch (msg) {
 763         /* DRV_* */
 764         XX(DRV_LOAD);
 765         XX(DRV_ENABLE);
 766         XX(DRV_OPEN);
 767         XX(DRV_CLOSE);
 768         XX(DRV_DISABLE);
 769         XX(DRV_FREE);
 770         /* ICM_RESERVED+X */
 771         XX(ICM_ABOUT);
 772         XX(ICM_CONFIGURE);
 773         XX(ICM_GET);
 774         XX(ICM_GETINFO);
 775         XX(ICM_GETDEFAULTQUALITY);
 776         XX(ICM_GETQUALITY);
 777         XX(ICM_GETSTATE);
 778         XX(ICM_SETQUALITY);
 779         XX(ICM_SET);
 780         XX(ICM_SETSTATE);
 781         /* ICM_USER+X */
 782         XX(ICM_COMPRESS_FRAMES_INFO);
 783         XX(ICM_COMPRESS_GET_FORMAT);
 784         XX(ICM_COMPRESS_GET_SIZE);
 785         XX(ICM_COMPRESS_QUERY);
 786         XX(ICM_COMPRESS_BEGIN);
 787         XX(ICM_COMPRESS);
 788         XX(ICM_COMPRESS_END);
 789         XX(ICM_DECOMPRESS_GET_FORMAT);
 790         XX(ICM_DECOMPRESS_QUERY);
 791         XX(ICM_DECOMPRESS_BEGIN);
 792         XX(ICM_DECOMPRESS);
 793         XX(ICM_DECOMPRESS_END);
 794         XX(ICM_DECOMPRESS_SET_PALETTE);
 795         XX(ICM_DECOMPRESS_GET_PALETTE);
 796         XX(ICM_DRAW_QUERY);
 797         XX(ICM_DRAW_BEGIN);
 798         XX(ICM_DRAW_GET_PALETTE);
 799         XX(ICM_DRAW_START);
 800         XX(ICM_DRAW_STOP);
 801         XX(ICM_DRAW_END);
 802         XX(ICM_DRAW_GETTIME);
 803         XX(ICM_DRAW);
 804         XX(ICM_DRAW_WINDOW);
 805         XX(ICM_DRAW_SETTIME);
 806         XX(ICM_DRAW_REALIZE);
 807         XX(ICM_DRAW_FLUSH);
 808         XX(ICM_DRAW_RENDERBUFFER);
 809         XX(ICM_DRAW_START_PLAY);
 810         XX(ICM_DRAW_STOP_PLAY);
 811         XX(ICM_DRAW_SUGGESTFORMAT);
 812         XX(ICM_DRAW_CHANGEPALETTE);
 813         XX(ICM_GETBUFFERSWANTED);
 814         XX(ICM_GETDEFAULTKEYFRAMERATE);
 815         XX(ICM_DECOMPRESSEX_BEGIN);
 816         XX(ICM_DECOMPRESSEX_QUERY);
 817         XX(ICM_DECOMPRESSEX);
 818         XX(ICM_DECOMPRESSEX_END);
 819         XX(ICM_SET_STATUS_PROC);
 820     default:
 821         FIXME("(%p,0x%08lx,0x%08lx,0x%08lx) unknown message\n",whic,(DWORD)msg,lParam1,lParam2);
 822     }
 823
 824 #undef XX
 825
 826     if (whic->driverproc) {
 827         /* dwDriverId parameter is the value returned by the DRV_OPEN */
 828         ret = whic->driverproc(whic->driverId, whic->hdrv, msg, lParam1, lParam2);
 829     } else {
 830         ret = SendDriverMessage(whic->hdrv, msg, lParam1, lParam2);
 831     }
 832
 833     TRACE("     -> 0x%08lx\n", ret);
 834     return ret;
 835 }
 836
 837 /***********************************************************************
 838  *              ICSendMessage                   [MSVFW32.@]
 839  */
 840 LRESULT VFWAPI ICSendMessage(HIC hic, UINT msg, DWORD lParam1, DWORD lParam2)
 841 {
 842     WINE_HIC*   whic = MSVIDEO_GetHicPtr(hic);
 843
 844     if (!whic) return ICERR_BADHANDLE;
 845     return MSVIDEO_SendMessage(whic, msg, lParam1, lParam2);
 846 }
 847
 848 /***********************************************************************
 849  *              ICDrawBegin             [MSVFW32.@]
 850  */
 851 DWORD VFWAPIV ICDrawBegin(
 852         HIC                hic,     /* [in] */
 853         DWORD              dwFlags, /* [in] flags */
 854         HPALETTE           hpal,    /* [in] palette to draw with */
 855         HWND               hwnd,    /* [in] window to draw to */
 856         HDC                hdc,     /* [in] HDC to draw to */
 857         INT                xDst,    /* [in] destination rectangle */
 858         INT                yDst,    /* [in] */
 859         INT                dxDst,   /* [in] */
 860         INT                dyDst,   /* [in] */
 861         LPBITMAPINFOHEADER lpbi,    /* [in] format of frame to draw */
 862         INT                xSrc,    /* [in] source rectangle */
 863         INT                ySrc,    /* [in] */
 864         INT                dxSrc,   /* [in] */
 865         INT                dySrc,   /* [in] */
 866         DWORD              dwRate,  /* [in] frames/second = (dwRate/dwScale) */
 867         DWORD              dwScale) /* [in] */
 868 {
 869
 870         ICDRAWBEGIN     icdb;
 871
 872         TRACE("(%p,%ld,%p,%p,%p,%u,%u,%u,%u,%p,%u,%u,%u,%u,%ld,%ld)\n",
 873                   hic, dwFlags, hpal, hwnd, hdc, xDst, yDst, dxDst, dyDst,
 874                   lpbi, xSrc, ySrc, dxSrc, dySrc, dwRate, dwScale);
 875
 876         icdb.dwFlags = dwFlags;
 877         icdb.hpal = hpal;
 878         icdb.hwnd = hwnd;
 879         icdb.hdc = hdc;
 880         icdb.xDst = xDst;
 881         icdb.yDst = yDst;
 882         icdb.dxDst = dxDst;
 883         icdb.dyDst = dyDst;
 884         icdb.lpbi = lpbi;
 885         icdb.xSrc = xSrc;
 886         icdb.ySrc = ySrc;
 887         icdb.dxSrc = dxSrc;
 888         icdb.dySrc = dySrc;
 889         icdb.dwRate = dwRate;
 890         icdb.dwScale = dwScale;
 891         return ICSendMessage(hic,ICM_DRAW_BEGIN,(DWORD)&icdb,sizeof(icdb));
 892 }
 893
 894 /***********************************************************************
 895  *              ICDraw                  [MSVFW32.@]
 896  */
 897 DWORD VFWAPIV ICDraw(HIC hic, DWORD dwFlags, LPVOID lpFormat, LPVOID lpData, DWORD cbData, LONG lTime) {
 898         ICDRAW  icd;
 899
 900         TRACE("(%p,%ld,%p,%p,%ld,%ld)\n",hic,dwFlags,lpFormat,lpData,cbData,lTime);
 901
 902         icd.dwFlags = dwFlags;
 903         icd.lpFormat = lpFormat;
 904         icd.lpData = lpData;
 905         icd.cbData = cbData;
 906         icd.lTime = lTime;
 907
 908         return ICSendMessage(hic,ICM_DRAW,(DWORD)&icd,sizeof(icd));
 909 }
 910
 911 /***********************************************************************
 912  *              ICClose                 [MSVFW32.@]
 913  */
 914 LRESULT WINAPI ICClose(HIC hic)
 915 {
 916     WINE_HIC* whic = MSVIDEO_GetHicPtr(hic);
 917     WINE_HIC** p;
 918
 919     TRACE("(%p)\n",hic);
 920
 921     if (!whic) return ICERR_BADHANDLE;
 922
 923     if (whic->driverproc)
 924     {
 925         MSVIDEO_SendMessage(whic, DRV_CLOSE, 0, 0);
 926         MSVIDEO_SendMessage(whic, DRV_DISABLE, 0, 0);
 927         MSVIDEO_SendMessage(whic, DRV_FREE, 0, 0);
 928     }
 929     else
 930     {
 931         CloseDriver(whic->hdrv, 0, 0);
 932     }
 933
 934     /* remove whic from list */
 935     for (p = &MSVIDEO_FirstHic; *p != NULL; p = &((*p)->next))
 936     {
 937         if ((*p) == whic)
 938         {
 939             *p = whic->next;
 940             break;
 941         }
 942     }
 943
 944     HeapFree(GetProcessHeap(), 0, whic);
 945     return 0;
 946 }
 947
 948
 949
 950 /***********************************************************************
 951  *              ICImageCompress [MSVFW32.@]
 952  */
 953 HANDLE VFWAPI ICImageCompress(
 954         HIC hic, UINT uiFlags,
 955         LPBITMAPINFO lpbiIn, LPVOID lpBits,
 956         LPBITMAPINFO lpbiOut, LONG lQuality,
 957         LONG* plSize)
 958 {
 959         FIXME("(%p,%08x,%p,%p,%p,%ld,%p)\n",
 960                 hic, uiFlags, lpbiIn, lpBits, lpbiOut, lQuality, plSize);
 961
 962         return NULL;
 963 }
 964
 965 /***********************************************************************
 966  *              ICImageDecompress       [MSVFW32.@]
 967  */
 968
 969 HANDLE VFWAPI ICImageDecompress(
 970         HIC hic, UINT uiFlags, LPBITMAPINFO lpbiIn,
 971         LPVOID lpBits, LPBITMAPINFO lpbiOut)
 972 {
 973         HGLOBAL hMem = NULL;
 974         BYTE*   pMem = NULL;
 975         BOOL    bReleaseIC = FALSE;
 976         BYTE*   pHdr = NULL;
 977         LONG    cbHdr = 0;
 978         BOOL    bSucceeded = FALSE;
 979         BOOL    bInDecompress = FALSE;
 980         DWORD   biSizeImage;
 981
 982         TRACE("(%p,%08x,%p,%p,%p)\n",
 983                 hic, uiFlags, lpbiIn, lpBits, lpbiOut);
 984
 985         if ( hic == NULL )
 986         {
 987                 hic = ICDecompressOpen( ICTYPE_VIDEO, 0, &lpbiIn->bmiHeader, (lpbiOut != NULL) ? &lpbiOut->bmiHeader : NULL );
 988                 if ( hic == NULL )
 989                 {
 990                         WARN("no handler\n" );
 991                         goto err;
 992                 }
 993                 bReleaseIC = TRUE;
 994         }
 995         if ( uiFlags != 0 )
 996         {
 997                 FIXME( "unknown flag %08x\n", uiFlags );
 998                 goto err;
 999         }
1000         if ( lpbiIn == NULL || lpBits == NULL )
1001         {
1002                 WARN("invalid argument\n");
1003                 goto err;
1004         }
1005
1006         if ( lpbiOut != NULL )
1007         {
1008                 if ( lpbiOut->bmiHeader.biSize != sizeof(BITMAPINFOHEADER) )
1009                         goto err;
1010                 cbHdr = sizeof(BITMAPINFOHEADER);
1011                 if ( lpbiOut->bmiHeader.biCompression == 3 )
1012                         cbHdr += sizeof(DWORD)*3;
1013                 else
1014                 if ( lpbiOut->bmiHeader.biBitCount <= 8 )
1015                 {
1016                         if ( lpbiOut->bmiHeader.biClrUsed == 0 )
1017                                 cbHdr += sizeof(RGBQUAD) * (1<<lpbiOut->bmiHeader.biBitCount);
1018                         else
1019                                 cbHdr += sizeof(RGBQUAD) * lpbiOut->bmiHeader.biClrUsed;
1020                 }
1021         }
1022         else
1023         {
1024                 TRACE( "get format\n" );
1025
1026                 cbHdr = ICDecompressGetFormatSize(hic,lpbiIn);
1027                 if ( cbHdr < sizeof(BITMAPINFOHEADER) )
1028                         goto err;
1029                 pHdr = (BYTE*)HeapAlloc(GetProcessHeap(),0,cbHdr+sizeof(RGBQUAD)*256);
1030                 if ( pHdr == NULL )
1031                         goto err;
1032                 ZeroMemory( pHdr, cbHdr+sizeof(RGBQUAD)*256 );
1033                 if ( ICDecompressGetFormat( hic, lpbiIn, (BITMAPINFO*)pHdr ) != ICERR_OK )
1034                         goto err;
1035                 lpbiOut = (BITMAPINFO*)pHdr;
1036                 if ( lpbiOut->bmiHeader.biBitCount <= 8 &&
1037                          ICDecompressGetPalette( hic, lpbiIn, lpbiOut ) != ICERR_OK &&
1038                          lpbiIn->bmiHeader.biBitCount == lpbiOut->bmiHeader.biBitCount )
1039                 {
1040                         if ( lpbiIn->bmiHeader.biClrUsed == 0 )
1041                                 memcpy( lpbiOut->bmiColors, lpbiIn->bmiColors, sizeof(RGBQUAD)*(1<<lpbiOut->bmiHeader.biBitCount) );
1042                         else
1043                                 memcpy( lpbiOut->bmiColors, lpbiIn->bmiColors, sizeof(RGBQUAD)*lpbiIn->bmiHeader.biClrUsed );
1044                 }
1045                 if ( lpbiOut->bmiHeader.biBitCount <= 8 &&
1046                          lpbiOut->bmiHeader.biClrUsed == 0 )
1047                         lpbiOut->bmiHeader.biClrUsed = 1<<lpbiOut->bmiHeader.biBitCount;
1048
1049                 lpbiOut->bmiHeader.biSize = sizeof(BITMAPINFOHEADER);
1050                 cbHdr = sizeof(BITMAPINFOHEADER) + sizeof(RGBQUAD)*lpbiOut->bmiHeader.biClrUsed;
1051         }
1052
1053         biSizeImage = lpbiOut->bmiHeader.biSizeImage;
1054         if ( biSizeImage == 0 )
1055                 biSizeImage = ((((lpbiOut->bmiHeader.biWidth * lpbiOut->bmiHeader.biBitCount + 7) >> 3) + 3) & (~3)) * abs(lpbiOut->bmiHeader.biHeight);
1056
1057         TRACE( "call ICDecompressBegin\n" );
1058
1059         if ( ICDecompressBegin( hic, lpbiIn, lpbiOut ) != ICERR_OK )
1060                 goto err;
1061         bInDecompress = TRUE;
1062
1063         TRACE( "cbHdr %ld, biSizeImage %ld\n", cbHdr, biSizeImage );
1064
1065         hMem = GlobalAlloc( GMEM_MOVEABLE|GMEM_ZEROINIT, cbHdr + biSizeImage );
1066         if ( hMem == NULL )
1067         {
1068                 WARN( "out of memory\n" );
1069                 goto err;
1070         }
1071         pMem = (BYTE*)GlobalLock( hMem );
1072         if ( pMem == NULL )
1073                 goto err;
1074         memcpy( pMem, lpbiOut, cbHdr );
1075
1076         TRACE( "call ICDecompress\n" );
1077         if ( ICDecompress( hic, 0, &lpbiIn->bmiHeader, lpBits, &lpbiOut->bmiHeader, pMem+cbHdr ) != ICERR_OK )
1078                 goto err;
1079
1080         bSucceeded = TRUE;
1081 err:
1082         if ( bInDecompress )
1083                 ICDecompressEnd( hic );
1084         if ( bReleaseIC )
1085                 ICClose(hic);
1086         if ( pHdr != NULL )
1087                 HeapFree(GetProcessHeap(),0,pHdr);
1088         if ( pMem != NULL )
1089                 GlobalUnlock( hMem );
1090         if ( !bSucceeded && hMem != NULL )
1091         {
1092                 GlobalFree(hMem); hMem = NULL;
1093         }
1094
1095         return (HANDLE)hMem;
1096 }
1097
1098 static BOOL GetFileNamePreview(LPVOID lpofn,BOOL bSave,BOOL bUnicode)
1099 {
1100   CHAR    szFunctionName[20];
1101   BOOL    (*fnGetFileName)(LPVOID);
1102   HMODULE hComdlg32;
1103   BOOL    ret;
1104
1105   FIXME("(%p,%d,%d), semi-stub!\n",lpofn,bSave,bUnicode);
1106
1107   lstrcpyA(szFunctionName, (bSave ? "GetSaveFileName" : "GetOpenFileName"));
1108   lstrcatA(szFunctionName, (bUnicode ? "W" : "A"));
1109
1110   hComdlg32 = LoadLibraryA("COMDLG32.DLL");
1111   if (hComdlg32 == NULL)
1112     return FALSE;
1113
1114   fnGetFileName = (LPVOID)GetProcAddress(hComdlg32, szFunctionName);
1115   if (fnGetFileName == NULL)
1116     return FALSE;
1117
1118   /* FIXME: need to add OFN_ENABLEHOOK and our own handler */
1119   ret = fnGetFileName(lpofn);
1120
1121   FreeLibrary(hComdlg32);
1122   return ret;
1123 }
1124
1125 /***********************************************************************
1126  *              GetOpenFileNamePreviewA [MSVFW32.@]
1127  */
1128 BOOL WINAPI GetOpenFileNamePreviewA(LPOPENFILENAMEA lpofn)
1129 {
1130   FIXME("(%p), semi-stub!\n", lpofn);
1131
1132   return GetFileNamePreview(lpofn, FALSE, FALSE);
1133 }
1134
1135 /***********************************************************************
1136  *              GetOpenFileNamePreviewW [MSVFW32.@]
1137  */
1138 BOOL WINAPI GetOpenFileNamePreviewW(LPOPENFILENAMEW lpofn)
1139 {
1140   FIXME("(%p), semi-stub!\n", lpofn);
1141
1142   return GetFileNamePreview(lpofn, FALSE, TRUE);
1143 }
1144
1145 /***********************************************************************
1146  *              GetSaveFileNamePreviewA [MSVFW32.@]
1147  */
1148 BOOL WINAPI GetSaveFileNamePreviewA(LPOPENFILENAMEA lpofn)
1149 {
1150   FIXME("(%p), semi-stub!\n", lpofn);
1151
1152   return GetFileNamePreview(lpofn, TRUE, FALSE);
1153 }
1154
1155 /***********************************************************************
1156  *              GetSaveFileNamePreviewW [MSVFW32.@]
1157  */
1158 BOOL WINAPI GetSaveFileNamePreviewW(LPOPENFILENAMEW lpofn)
1159 {
1160   FIXME("(%p), semi-stub!\n", lpofn);
1161
1162   return GetFileNamePreview(lpofn, TRUE, TRUE);
1163 }