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 #include "winreg.h"
  36
  37 #include "windowsx.h"
  38
  39 #include "wine/debug.h"
  40
  41 /* Drivers32 settings */
  42 #define HKLM_DRIVERS32 "Software\\Microsoft\\Windows NT\\CurrentVersion\\Drivers32"
  43
  44 WINE_DEFAULT_DEBUG_CHANNEL(msvideo);
  45
  46 static inline const char *wine_dbgstr_fcc( DWORD fcc )
  47 {
  48     return wine_dbg_sprintf("%c%c%c%c",
  49                             LOBYTE(LOWORD(fcc)), HIBYTE(LOWORD(fcc)),
  50                             LOBYTE(HIWORD(fcc)), HIBYTE(HIWORD(fcc)));
  51 }
  52
  53 LRESULT (CALLBACK *pFnCallTo16)(HDRVR, HIC, UINT, LPARAM, LPARAM) = NULL;
  54
  55 static WINE_HIC*        MSVIDEO_FirstHic /* = NULL */;
  56
  57 typedef struct _reg_driver reg_driver;
  58 struct _reg_driver
  59 {
  60     DWORD       fccType;
  61     DWORD       fccHandler;
  62     DRIVERPROC  proc;
  63     LPWSTR      name;
  64     reg_driver* next;
  65 };
  66
  67 static reg_driver* reg_driver_list = NULL;
  68
  69 /* This one is a macro such that it works for both ASCII and Unicode */
  70 #define fourcc_to_string(str, fcc) do { \
  71         (str)[0] = LOBYTE(LOWORD(fcc)); \
  72         (str)[1] = HIBYTE(LOWORD(fcc)); \
  73         (str)[2] = LOBYTE(HIWORD(fcc)); \
  74         (str)[3] = HIBYTE(HIWORD(fcc)); \
  75         } while(0)
  76
  77 HMODULE MSVFW32_hModule;
  78
  79 BOOL WINAPI DllMain( HINSTANCE hinst, DWORD reason, LPVOID reserved )
  80 {
  81     TRACE("%p,%lx,%p\n", hinst, reason, reserved);
  82
  83     switch(reason)
  84     {
  85         case DLL_PROCESS_ATTACH:
  86             DisableThreadLibraryCalls(hinst);
  87             MSVFW32_hModule = (HMODULE)hinst;
  88             break;
  89     }
  90     return TRUE;
  91 }
  92
  93 static int compare_fourcc(DWORD fcc1, DWORD fcc2)
  94 {
  95   char fcc_str1[4];
  96   char fcc_str2[4];
  97   fourcc_to_string(fcc_str1, fcc1);
  98   fourcc_to_string(fcc_str2, fcc2);
  99   return strncasecmp(fcc_str1, fcc_str2, 4);
 100 }
 101
 102 typedef BOOL (*enum_handler_t)(const char*, int, void*);
 103
 104 static BOOL enum_drivers(DWORD fccType, enum_handler_t handler, void* param)
 105 {
 106     CHAR buf[2048], fccTypeStr[5], *s;
 107     DWORD i, cnt = 0, bufLen, lRet;
 108     BOOL result = FALSE;
 109     FILETIME lastWrite;
 110     HKEY hKey;
 111
 112     fourcc_to_string(fccTypeStr, fccType);
 113     fccTypeStr[4] = '.';
 114
 115     /* first, go through the registry entries */
 116     lRet = RegOpenKeyExA(HKEY_LOCAL_MACHINE, HKLM_DRIVERS32, 0, KEY_QUERY_VALUE, &hKey);
 117     if (lRet == ERROR_SUCCESS)
 118     {
 119         RegQueryInfoKeyA( hKey, 0, 0, 0, &cnt, 0, 0, 0, 0, 0, 0, 0);
 120         for (i = 0; i < cnt; i++)
 121         {
 122             bufLen = sizeof(buf) / sizeof(buf[0]);
 123             lRet = RegEnumKeyExA(hKey, i, buf, &bufLen, 0, 0, 0, &lastWrite);
 124             if (lRet != ERROR_SUCCESS) continue;
 125             if (strncasecmp(buf, fccTypeStr, 5) || buf[9] != '=') continue;
 126             if ((result = handler(buf, i, param))) break;
 127         }
 128         RegCloseKey( hKey );
 129     }
 130     if (result) return result;
 131
 132     /* if that didn't work, go through the values in system.ini */
 133     if (GetPrivateProfileSectionA("drivers32", buf, sizeof(buf), "system.ini"))
 134     {
 135         for (s = buf; *s; cnt++, s += strlen(s) + 1)
 136         {
 137             if (strncasecmp(s, fccTypeStr, 5) || s[9] != '=') continue;
 138             if ((result = handler(s, cnt, param))) break;
 139         }
 140     }
 141
 142     return result;
 143 }
 144
 145 /******************************************************************
 146  *              MSVIDEO_GetHicPtr
 147  *
 148  *
 149  */
 150 WINE_HIC*   MSVIDEO_GetHicPtr(HIC hic)
 151 {
 152     WINE_HIC*   whic;
 153
 154     for (whic = MSVIDEO_FirstHic; whic && whic->hic != hic; whic = whic->next);
 155     return whic;
 156 }
 157
 158 /***********************************************************************
 159  *              VideoForWindowsVersion          [MSVFW32.2]
 160  *              VideoForWindowsVersion          [MSVIDEO.2]
 161  * Returns the version in major.minor form.
 162  * In Windows95 this returns 0x040003b6 (4.950)
 163  */
 164 DWORD WINAPI VideoForWindowsVersion(void)
 165 {
 166     return 0x040003B6; /* 4.950 */
 167 }
 168
 169 static BOOL ICInfo_enum_handler(const char *drv, int nr, void *param)
 170 {
 171     ICINFO *lpicinfo = (ICINFO *)param;
 172     DWORD fccHandler = mmioStringToFOURCCA(drv + 5, 0);
 173
 174     /* exact match of fccHandler or nth driver found */
 175     if ((lpicinfo->fccHandler != nr) && (lpicinfo->fccHandler != fccHandler))
 176         return FALSE;
 177
 178     lpicinfo->fccType = mmioStringToFOURCCA(drv, 0);
 179     lpicinfo->fccHandler = fccHandler;
 180     lpicinfo->dwFlags = 0;
 181     lpicinfo->dwVersion = 0;
 182     lpicinfo->dwVersionICM = 0x104;
 183     lpicinfo->szName[0] = 0;
 184     lpicinfo->szDescription[0] = 0;
 185     MultiByteToWideChar(CP_ACP, 0, drv + 10, -1, lpicinfo->szDriver,
 186                         sizeof(lpicinfo->szDriver)/sizeof(WCHAR));
 187
 188     return TRUE;
 189 }
 190
 191 /***********************************************************************
 192  *              ICInfo                          [MSVFW32.@]
 193  * Get information about an installable compressor. Return TRUE if there
 194  * is one.
 195  *
 196  * PARAMS
 197  *   fccType     [I] type of compressor (e.g. 'vidc')
 198  *   fccHandler  [I] real fcc for handler or <n>th compressor
 199  *   lpicinfo    [O] information about compressor
 200  */
 201 BOOL VFWAPI ICInfo( DWORD fccType, DWORD fccHandler, ICINFO *lpicinfo)
 202 {
 203     TRACE("(%s,%s/%08lx,%p)\n",
 204           wine_dbgstr_fcc(fccType), wine_dbgstr_fcc(fccHandler), fccHandler, lpicinfo);
 205
 206     lpicinfo->fccHandler = fccHandler;
 207     return enum_drivers(fccType, ICInfo_enum_handler, lpicinfo);
 208 }
 209
 210 static DWORD IC_HandleRef = 1;
 211
 212 /***********************************************************************
 213  *              ICInstall                       [MSVFW32.@]
 214  */
 215 BOOL VFWAPI ICInstall(DWORD fccType, DWORD fccHandler, LPARAM lParam, LPSTR szDesc, UINT wFlags)
 216 {
 217     reg_driver* driver;
 218     unsigned len;
 219
 220     TRACE("(%s,%s,%p,%p,0x%08x)\n", wine_dbgstr_fcc(fccType), wine_dbgstr_fcc(fccHandler), (void*)lParam, szDesc, wFlags);
 221
 222     /* Check if a driver is already registered */
 223     for (driver = reg_driver_list; driver; driver = driver->next)
 224     {
 225         if (!compare_fourcc(fccType, driver->fccType) &&
 226             !compare_fourcc(fccHandler, driver->fccHandler))
 227             break;
 228     }
 229     if (driver) return FALSE;
 230
 231     /* Register the driver */
 232     driver = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(reg_driver));
 233     if (!driver) goto oom;
 234     driver->fccType = fccType;
 235     driver->fccHandler = fccHandler;
 236
 237     switch(wFlags)
 238     {
 239     case ICINSTALL_FUNCTION:
 240         driver->proc = (DRIVERPROC)lParam;
 241         driver->name = NULL;
 242         break;
 243     case ICINSTALL_DRIVER:
 244         driver->proc = NULL;
 245         len = MultiByteToWideChar(CP_ACP, 0, (char*)lParam, -1, NULL, 0);
 246         driver->name = HeapAlloc(GetProcessHeap(), 0, len * sizeof(WCHAR));
 247         if (!driver->name) goto oom;
 248         MultiByteToWideChar(CP_ACP, 0, (char*)lParam, -1, driver->name, len);
 249         break;
 250     default:
 251         ERR("Invalid flags!\n");
 252         HeapFree(GetProcessHeap(), 0, driver);
 253         return FALSE;
 254    }
 255
 256    /* Insert our driver in the list*/
 257    driver->next = reg_driver_list;
 258    reg_driver_list = driver;
 259
 260    return TRUE;
 261  oom:
 262    if (driver) HeapFree(GetProcessHeap(), 0, driver);
 263    return FALSE;
 264 }
 265
 266 /***********************************************************************
 267  *              ICRemove                        [MSVFW32.@]
 268  */
 269 BOOL VFWAPI ICRemove(DWORD fccType, DWORD fccHandler, UINT wFlags)
 270 {
 271     reg_driver** pdriver;
 272
 273     TRACE("(%s,%s,0x%08x)\n", wine_dbgstr_fcc(fccType), wine_dbgstr_fcc(fccHandler), wFlags);
 274
 275     /* Check if a driver is already registered */
 276     for (pdriver = &reg_driver_list; *pdriver; pdriver = &(*pdriver)->next)
 277     {
 278         if (!compare_fourcc(fccType, (*pdriver)->fccType) &&
 279             !compare_fourcc(fccHandler, (*pdriver)->fccHandler))
 280             break;
 281     }
 282     if (!*pdriver)
 283         return FALSE;
 284
 285     /* Remove the driver from the list */
 286     *pdriver = (*pdriver)->next;
 287     if ((*pdriver)->name)
 288         HeapFree(GetProcessHeap(), 0, (*pdriver)->name);
 289     HeapFree(GetProcessHeap(), 0, *pdriver);
 290
 291     return TRUE;
 292 }
 293
 294
 295 /***********************************************************************
 296  *              ICOpen                          [MSVFW32.@]
 297  * Opens an installable compressor. Return special handle.
 298  */
 299 HIC VFWAPI ICOpen(DWORD fccType, DWORD fccHandler, UINT wMode)
 300 {
 301     WCHAR               codecname[10];
 302     ICOPEN              icopen;
 303     HDRVR               hdrv;
 304     WINE_HIC*           whic;
 305     BOOL                bIs16;
 306     static const WCHAR  drv32W[] = {'d','r','i','v','e','r','s','3','2','\0'};
 307     reg_driver*         driver;
 308
 309     TRACE("(%s,%s,0x%08x)\n", wine_dbgstr_fcc(fccType), wine_dbgstr_fcc(fccHandler), wMode);
 310
 311     /* Check if there is a registered driver that matches */
 312     driver = reg_driver_list;
 313     while(driver)
 314         if (!compare_fourcc(fccType, driver->fccType) &&
 315             !compare_fourcc(fccHandler, driver->fccHandler))
 316             break;
 317         else
 318             driver = driver->next;
 319
 320     if (driver && driver->proc)
 321         /* The driver has been registered at runtime with its driverproc */
 322         return MSVIDEO_OpenFunction(fccType, fccHandler, wMode, (DRIVERPROC)driver->proc, (DWORD)NULL);
 323
 324     /* Well, lParam2 is in fact a LPVIDEO_OPEN_PARMS, but it has the
 325      * same layout as ICOPEN
 326      */
 327     icopen.dwSize               = sizeof(ICOPEN);
 328     icopen.fccType              = fccType;
 329     icopen.fccHandler           = fccHandler;
 330     icopen.dwVersion            = 0x00001000; /* FIXME */
 331     icopen.dwFlags              = wMode;
 332     icopen.dwError              = 0;
 333     icopen.pV1Reserved          = NULL;
 334     icopen.pV2Reserved          = NULL;
 335     icopen.dnDevNode            = 0; /* FIXME */
 336
 337     if (!driver) {
 338         /* The driver is registered in the registry */
 339         fourcc_to_string(codecname, fccType);
 340         codecname[4] = '.';
 341         fourcc_to_string(codecname + 5, fccHandler);
 342         codecname[9] = '\0';
 343
 344         hdrv = OpenDriver(codecname, drv32W, (LPARAM)&icopen);
 345         if (!hdrv)
 346         {
 347             if (fccType == streamtypeVIDEO)
 348             {
 349                 codecname[0] = 'v';
 350                 codecname[1] = 'i';
 351                 codecname[2] = 'd';
 352                 codecname[3] = 'c';
 353
 354                 fccType = ICTYPE_VIDEO;
 355                 hdrv = OpenDriver(codecname, drv32W, (LPARAM)&icopen);
 356             }
 357             if (!hdrv)
 358                 return 0;
 359         }
 360     } else {
 361         /* The driver has been registered at runtime with its name */
 362         hdrv = OpenDriver(driver->name, NULL, (LPARAM)&icopen);
 363         if (!hdrv)
 364             return 0;
 365     }
 366     bIs16 = GetDriverFlags(hdrv) & 0x10000000; /* undocumented flag: WINE_GDF_16BIT */
 367
 368     if (bIs16 && !pFnCallTo16)
 369     {
 370         FIXME("Got a 16 bit driver, but no 16 bit support in msvfw\n");
 371         return 0;
 372     }
 373     whic = HeapAlloc(GetProcessHeap(), 0, sizeof(WINE_HIC));
 374     if (!whic)
 375     {
 376         CloseDriver(hdrv, 0, 0);
 377         return FALSE;
 378     }
 379     whic->hdrv          = hdrv;
 380     /* FIXME: is the signature the real one ? */
 381     whic->driverproc    = bIs16 ? (DRIVERPROC)pFnCallTo16 : NULL;
 382     whic->driverproc16  = 0;
 383     whic->type          = fccType;
 384     whic->handler       = fccHandler;
 385     while (MSVIDEO_GetHicPtr(HIC_32(IC_HandleRef)) != NULL) IC_HandleRef++;
 386     whic->hic           = HIC_32(IC_HandleRef++);
 387     whic->next          = MSVIDEO_FirstHic;
 388     MSVIDEO_FirstHic = whic;
 389
 390     TRACE("=> %p\n", whic->hic);
 391     return whic->hic;
 392 }
 393
 394 /***********************************************************************
 395  *              MSVIDEO_OpenFunction
 396  */
 397 HIC MSVIDEO_OpenFunction(DWORD fccType, DWORD fccHandler, UINT wMode,
 398                          DRIVERPROC lpfnHandler, DWORD lpfnHandler16)
 399 {
 400     ICOPEN      icopen;
 401     WINE_HIC*   whic;
 402
 403     TRACE("(%s,%s,%d,%p,%08lx)\n",
 404           wine_dbgstr_fcc(fccType), wine_dbgstr_fcc(fccHandler), wMode, lpfnHandler, lpfnHandler16);
 405
 406     icopen.dwSize               = sizeof(ICOPEN);
 407     icopen.fccType              = fccType;
 408     icopen.fccHandler           = fccHandler;
 409     icopen.dwVersion            = 0x00001000; /* FIXME */
 410     icopen.dwFlags              = wMode;
 411     icopen.dwError              = 0;
 412     icopen.pV1Reserved          = NULL;
 413     icopen.pV2Reserved          = NULL;
 414     icopen.dnDevNode            = 0; /* FIXME */
 415
 416     whic = HeapAlloc(GetProcessHeap(), 0, sizeof(WINE_HIC));
 417     if (!whic) return 0;
 418
 419     whic->driverproc   = lpfnHandler;
 420     whic->driverproc16 = lpfnHandler16;
 421     while (MSVIDEO_GetHicPtr(HIC_32(IC_HandleRef)) != NULL) IC_HandleRef++;
 422     whic->hic          = HIC_32(IC_HandleRef++);
 423     whic->next         = MSVIDEO_FirstHic;
 424     MSVIDEO_FirstHic = whic;
 425
 426     /* Now try opening/loading the driver. Taken from DRIVER_AddToList */
 427     /* What if the function is used more than once? */
 428
 429     if (MSVIDEO_SendMessage(whic, DRV_LOAD, 0L, 0L) != DRV_SUCCESS)
 430     {
 431         WARN("DRV_LOAD failed for hic %p\n", whic->hic);
 432         MSVIDEO_FirstHic = whic->next;
 433         HeapFree(GetProcessHeap(), 0, whic);
 434         return 0;
 435     }
 436     /* return value is not checked */
 437     MSVIDEO_SendMessage(whic, DRV_ENABLE, 0L, 0L);
 438
 439     whic->driverId = (DWORD)MSVIDEO_SendMessage(whic, DRV_OPEN, 0, (DWORD)&icopen);
 440     /* FIXME: What should we put here? */
 441     whic->hdrv = (HDRVR)0;
 442
 443     if (whic->driverId == 0)
 444     {
 445         WARN("DRV_OPEN failed for hic %p\n", whic->hic);
 446         MSVIDEO_FirstHic = whic->next;
 447         HeapFree(GetProcessHeap(), 0, whic);
 448         return 0;
 449     }
 450
 451     TRACE("=> %p\n", whic->hic);
 452     return whic->hic;
 453 }
 454
 455 /***********************************************************************
 456  *              ICOpenFunction                  [MSVFW32.@]
 457  */
 458 HIC VFWAPI ICOpenFunction(DWORD fccType, DWORD fccHandler, UINT wMode, FARPROC lpfnHandler)
 459 {
 460     return MSVIDEO_OpenFunction(fccType, fccHandler, wMode, (DRIVERPROC)lpfnHandler, 0);
 461 }
 462
 463 /***********************************************************************
 464  *              ICGetInfo                       [MSVFW32.@]
 465  */
 466 LRESULT VFWAPI ICGetInfo(HIC hic, ICINFO *picinfo, DWORD cb)
 467 {
 468     LRESULT     ret;
 469     WINE_HIC*   whic = MSVIDEO_GetHicPtr(hic);
 470
 471     TRACE("(%p,%p,%ld)\n", hic, picinfo, cb);
 472
 473     whic = MSVIDEO_GetHicPtr(hic);
 474     if (!whic) return ICERR_BADHANDLE;
 475     if (!picinfo) return MMSYSERR_INVALPARAM;
 476
 477     /* (WS) The field szDriver should be initialized because the driver
 478      * is not obliged and often will not do it. Some applications, like
 479      * VirtualDub, rely on this field and will occasionally crash if it
 480      * goes unitialized.
 481      */
 482     if (cb >= sizeof(ICINFO)) picinfo->szDriver[0] = '\0';
 483
 484     ret = ICSendMessage(hic, ICM_GETINFO, (DWORD)picinfo, cb);
 485
 486     /* (WS) When szDriver was not supplied by the driver itself, apparently
 487      * Windows will set its value equal to the driver file name. This can
 488      * be obtained from the registry as we do here.
 489      */
 490     if (cb >= sizeof(ICINFO) && picinfo->szDriver[0] == 0)
 491     {
 492         ICINFO  ii;
 493
 494         memset(&ii, 0, sizeof(ii));
 495         ii.dwSize = sizeof(ii);
 496         ICInfo(picinfo->fccType, picinfo->fccHandler, &ii);
 497         lstrcpyW(picinfo->szDriver, ii.szDriver);
 498     }
 499
 500     TRACE("     -> 0x%08lx\n", ret);
 501     return ret;
 502 }
 503
 504 typedef struct {
 505     DWORD fccType;
 506     DWORD fccHandler;
 507     LPBITMAPINFOHEADER lpbiIn;
 508     LPBITMAPINFOHEADER lpbiOut;
 509     WORD wMode;
 510     DWORD querymsg;
 511     HIC hic;
 512 } driver_info_t;
 513
 514 static HIC try_driver(driver_info_t *info)
 515 {
 516     HIC   hic;
 517
 518     if ((hic = ICOpen(info->fccType, info->fccHandler, info->wMode)))
 519     {
 520         if (!ICSendMessage(hic, info->querymsg, (DWORD)info->lpbiIn, (DWORD)info->lpbiOut))
 521             return hic;
 522         ICClose(hic);
 523     }
 524     return 0;
 525 }
 526
 527 static BOOL ICLocate_enum_handler(const char *drv, int nr, void *param)
 528 {
 529     driver_info_t *info = (driver_info_t *)param;
 530     info->fccHandler = mmioStringToFOURCCA(drv + 5, 0);
 531     info->hic = try_driver(info);
 532     return info->hic != 0;
 533 }
 534
 535 /***********************************************************************
 536  *              ICLocate                        [MSVFW32.@]
 537  */
 538 HIC VFWAPI ICLocate(DWORD fccType, DWORD fccHandler, LPBITMAPINFOHEADER lpbiIn,
 539                     LPBITMAPINFOHEADER lpbiOut, WORD wMode)
 540 {
 541     driver_info_t info;
 542
 543     TRACE("(%s,%s,%p,%p,0x%04x)\n",
 544           wine_dbgstr_fcc(fccType), wine_dbgstr_fcc(fccHandler), lpbiIn, lpbiOut, wMode);
 545
 546     info.fccType = fccType;
 547     info.fccHandler = fccHandler;
 548     info.lpbiIn = lpbiIn;
 549     info.lpbiOut = lpbiOut;
 550     info.wMode = wMode;
 551
 552     switch (wMode)
 553     {
 554     case ICMODE_FASTCOMPRESS:
 555     case ICMODE_COMPRESS:
 556         info.querymsg = ICM_COMPRESS_QUERY;
 557         break;
 558     case ICMODE_FASTDECOMPRESS:
 559     case ICMODE_DECOMPRESS:
 560         info.querymsg = ICM_DECOMPRESS_QUERY;
 561         break;
 562     case ICMODE_DRAW:
 563         info.querymsg = ICM_DRAW_QUERY;
 564         break;
 565     default:
 566         WARN("Unknown mode (%d)\n", wMode);
 567         return 0;
 568     }
 569
 570     /* Easy case: handler/type match, we just fire a query and return */
 571     info.hic = try_driver(&info);
 572     /* If it didn't work, try each driver in turn. 32 bit codecs only. */
 573     /* FIXME: Move this to an init routine? */
 574     if (!info.hic) enum_drivers(fccType, ICLocate_enum_handler, &info);
 575
 576     if (info.hic)
 577     {
 578         TRACE("=> %p\n", info.hic);
 579         return info.hic;
 580     }
 581
 582     if (fccType == streamtypeVIDEO)
 583         return ICLocate(ICTYPE_VIDEO, fccHandler, lpbiIn, lpbiOut, wMode);
 584
 585     WARN("(%s,%s,%p,%p,0x%04x) not found!\n",
 586          wine_dbgstr_fcc(fccType), wine_dbgstr_fcc(fccHandler), lpbiIn, lpbiOut, wMode);
 587     return 0;
 588 }
 589
 590 /***********************************************************************
 591  *              ICGetDisplayFormat                      [MSVFW32.@]
 592  */
 593 HIC VFWAPI ICGetDisplayFormat(
 594         HIC hic,LPBITMAPINFOHEADER lpbiIn,LPBITMAPINFOHEADER lpbiOut,
 595         INT depth,INT dx,INT dy)
 596 {
 597         HIC     tmphic = hic;
 598
 599         TRACE("(%p,%p,%p,%d,%d,%d)!\n",hic,lpbiIn,lpbiOut,depth,dx,dy);
 600
 601         if (!tmphic) {
 602                 tmphic=ICLocate(ICTYPE_VIDEO,0,lpbiIn,NULL,ICMODE_DECOMPRESS);
 603                 if (!tmphic)
 604                         return tmphic;
 605         }
 606         if ((dy == lpbiIn->biHeight) && (dx == lpbiIn->biWidth))
 607                 dy = dx = 0; /* no resize needed */
 608
 609         /* Can we decompress it ? */
 610         if (ICDecompressQuery(tmphic,lpbiIn,NULL) != 0)
 611                 goto errout; /* no, sorry */
 612
 613         ICDecompressGetFormat(tmphic,lpbiIn,lpbiOut);
 614
 615         if (lpbiOut->biCompression != 0) {
 616            FIXME("Ooch, how come decompressor outputs compressed data (%ld)??\n",
 617                          lpbiOut->biCompression);
 618         }
 619         if (lpbiOut->biSize < sizeof(*lpbiOut)) {
 620            FIXME("Ooch, size of output BIH is too small (%ld)\n",
 621                          lpbiOut->biSize);
 622            lpbiOut->biSize = sizeof(*lpbiOut);
 623         }
 624         if (!depth) {
 625                 HDC     hdc;
 626
 627                 hdc = GetDC(0);
 628                 depth = GetDeviceCaps(hdc,BITSPIXEL)*GetDeviceCaps(hdc,PLANES);
 629                 ReleaseDC(0,hdc);
 630                 if (depth==15)  depth = 16;
 631                 if (depth<8)    depth =  8;
 632         }
 633         if (lpbiIn->biBitCount == 8)
 634                 depth = 8;
 635
 636         TRACE("=> %p\n", tmphic);
 637         return tmphic;
 638 errout:
 639         if (hic!=tmphic)
 640                 ICClose(tmphic);
 641
 642         TRACE("=> 0\n");
 643         return 0;
 644 }
 645
 646 /***********************************************************************
 647  *              ICCompress                      [MSVFW32.@]
 648  */
 649 DWORD VFWAPIV
 650 ICCompress(
 651         HIC hic,DWORD dwFlags,LPBITMAPINFOHEADER lpbiOutput,LPVOID lpData,
 652         LPBITMAPINFOHEADER lpbiInput,LPVOID lpBits,LPDWORD lpckid,
 653         LPDWORD lpdwFlags,LONG lFrameNum,DWORD dwFrameSize,DWORD dwQuality,
 654         LPBITMAPINFOHEADER lpbiPrev,LPVOID lpPrev)
 655 {
 656         ICCOMPRESS      iccmp;
 657
 658         TRACE("(%p,%ld,%p,%p,%p,%p,...)\n",hic,dwFlags,lpbiOutput,lpData,lpbiInput,lpBits);
 659
 660         iccmp.dwFlags           = dwFlags;
 661
 662         iccmp.lpbiOutput        = lpbiOutput;
 663         iccmp.lpOutput          = lpData;
 664         iccmp.lpbiInput         = lpbiInput;
 665         iccmp.lpInput           = lpBits;
 666
 667         iccmp.lpckid            = lpckid;
 668         iccmp.lpdwFlags         = lpdwFlags;
 669         iccmp.lFrameNum         = lFrameNum;
 670         iccmp.dwFrameSize       = dwFrameSize;
 671         iccmp.dwQuality         = dwQuality;
 672         iccmp.lpbiPrev          = lpbiPrev;
 673         iccmp.lpPrev            = lpPrev;
 674         return ICSendMessage(hic,ICM_COMPRESS,(DWORD)&iccmp,sizeof(iccmp));
 675 }
 676
 677 /***********************************************************************
 678  *              ICDecompress                    [MSVFW32.@]
 679  */
 680 DWORD VFWAPIV  ICDecompress(HIC hic,DWORD dwFlags,LPBITMAPINFOHEADER lpbiFormat,
 681                                 LPVOID lpData,LPBITMAPINFOHEADER lpbi,LPVOID lpBits)
 682 {
 683         ICDECOMPRESS    icd;
 684         DWORD ret;
 685
 686         TRACE("(%p,%ld,%p,%p,%p,%p)\n",hic,dwFlags,lpbiFormat,lpData,lpbi,lpBits);
 687
 688         TRACE("lpBits[0] == %lx\n",((LPDWORD)lpBits)[0]);
 689
 690         icd.dwFlags     = dwFlags;
 691         icd.lpbiInput   = lpbiFormat;
 692         icd.lpInput     = lpData;
 693
 694         icd.lpbiOutput  = lpbi;
 695         icd.lpOutput    = lpBits;
 696         icd.ckid        = 0;
 697         ret = ICSendMessage(hic,ICM_DECOMPRESS,(DWORD)&icd,sizeof(ICDECOMPRESS));
 698
 699         TRACE("lpBits[0] == %lx\n",((LPDWORD)lpBits)[0]);
 700
 701         TRACE("-> %ld\n",ret);
 702
 703         return ret;
 704 }
 705
 706
 707 /***********************************************************************
 708  *              ICCompressorChoose   [MSVFW32.@]
 709  */
 710 BOOL VFWAPI ICCompressorChoose(HWND hwnd, UINT uiFlags, LPVOID pvIn,
 711                                LPVOID lpData, PCOMPVARS pc, LPSTR lpszTitle)
 712 {
 713   FIXME("(%p,0x%X,%p,%p,%p,%s),stub!\n",hwnd,uiFlags,pvIn,lpData,pc,lpszTitle);
 714
 715   if (pc == NULL || pc->cbSize != sizeof(COMPVARS))
 716     return FALSE;
 717
 718   if ((pc->dwFlags & ICMF_COMPVARS_VALID) == 0) {
 719     pc->dwFlags   = 0;
 720     pc->fccType   = pc->fccHandler = 0;
 721     pc->hic       = NULL;
 722     pc->lpbiOut   = NULL;
 723     pc->lpBitsOut = pc->lpBitsPrev = pc->lpState = NULL;
 724     pc->lQ        = ICQUALITY_DEFAULT;
 725     pc->lKey      = -1;
 726     pc->lDataRate = 300; /* kB */
 727     pc->lpState   = NULL;
 728     pc->cbState   = 0;
 729   }
 730   if (pc->fccType == 0)
 731     pc->fccType = ICTYPE_VIDEO;
 732
 733   /* FIXME */
 734
 735   return FALSE;
 736 }
 737
 738
 739 /***********************************************************************
 740  *              ICCompressorFree   [MSVFW32.@]
 741  */
 742 void VFWAPI ICCompressorFree(PCOMPVARS pc)
 743 {
 744   TRACE("(%p)\n",pc);
 745
 746   if (pc != NULL && pc->cbSize == sizeof(COMPVARS)) {
 747     if (pc->hic != NULL) {
 748       ICClose(pc->hic);
 749       pc->hic = NULL;
 750     }
 751     if (pc->lpbiOut != NULL) {
 752       GlobalFreePtr(pc->lpbiOut);
 753       pc->lpbiOut = NULL;
 754     }
 755     if (pc->lpBitsOut != NULL) {
 756       GlobalFreePtr(pc->lpBitsOut);
 757       pc->lpBitsOut = NULL;
 758     }
 759     if (pc->lpBitsPrev != NULL) {
 760       GlobalFreePtr(pc->lpBitsPrev);
 761       pc->lpBitsPrev = NULL;
 762     }
 763     if (pc->lpState != NULL) {
 764       GlobalFreePtr(pc->lpBitsPrev);
 765       pc->lpState = NULL;
 766     }
 767     pc->dwFlags = 0;
 768   }
 769 }
 770
 771
 772 /******************************************************************
 773  *              MSVIDEO_SendMessage
 774  *
 775  *
 776  */
 777 LRESULT MSVIDEO_SendMessage(WINE_HIC* whic, UINT msg, DWORD lParam1, DWORD lParam2)
 778 {
 779     LRESULT     ret;
 780
 781 #define XX(x) case x: TRACE("(%p,"#x",0x%08lx,0x%08lx)\n",whic,lParam1,lParam2); break;
 782
 783     switch (msg) {
 784         /* DRV_* */
 785         XX(DRV_LOAD);
 786         XX(DRV_ENABLE);
 787         XX(DRV_OPEN);
 788         XX(DRV_CLOSE);
 789         XX(DRV_DISABLE);
 790         XX(DRV_FREE);
 791         /* ICM_RESERVED+X */
 792         XX(ICM_ABOUT);
 793         XX(ICM_CONFIGURE);
 794         XX(ICM_GET);
 795         XX(ICM_GETINFO);
 796         XX(ICM_GETDEFAULTQUALITY);
 797         XX(ICM_GETQUALITY);
 798         XX(ICM_GETSTATE);
 799         XX(ICM_SETQUALITY);
 800         XX(ICM_SET);
 801         XX(ICM_SETSTATE);
 802         /* ICM_USER+X */
 803         XX(ICM_COMPRESS_FRAMES_INFO);
 804         XX(ICM_COMPRESS_GET_FORMAT);
 805         XX(ICM_COMPRESS_GET_SIZE);
 806         XX(ICM_COMPRESS_QUERY);
 807         XX(ICM_COMPRESS_BEGIN);
 808         XX(ICM_COMPRESS);
 809         XX(ICM_COMPRESS_END);
 810         XX(ICM_DECOMPRESS_GET_FORMAT);
 811         XX(ICM_DECOMPRESS_QUERY);
 812         XX(ICM_DECOMPRESS_BEGIN);
 813         XX(ICM_DECOMPRESS);
 814         XX(ICM_DECOMPRESS_END);
 815         XX(ICM_DECOMPRESS_SET_PALETTE);
 816         XX(ICM_DECOMPRESS_GET_PALETTE);
 817         XX(ICM_DRAW_QUERY);
 818         XX(ICM_DRAW_BEGIN);
 819         XX(ICM_DRAW_GET_PALETTE);
 820         XX(ICM_DRAW_START);
 821         XX(ICM_DRAW_STOP);
 822         XX(ICM_DRAW_END);
 823         XX(ICM_DRAW_GETTIME);
 824         XX(ICM_DRAW);
 825         XX(ICM_DRAW_WINDOW);
 826         XX(ICM_DRAW_SETTIME);
 827         XX(ICM_DRAW_REALIZE);
 828         XX(ICM_DRAW_FLUSH);
 829         XX(ICM_DRAW_RENDERBUFFER);
 830         XX(ICM_DRAW_START_PLAY);
 831         XX(ICM_DRAW_STOP_PLAY);
 832         XX(ICM_DRAW_SUGGESTFORMAT);
 833         XX(ICM_DRAW_CHANGEPALETTE);
 834         XX(ICM_GETBUFFERSWANTED);
 835         XX(ICM_GETDEFAULTKEYFRAMERATE);
 836         XX(ICM_DECOMPRESSEX_BEGIN);
 837         XX(ICM_DECOMPRESSEX_QUERY);
 838         XX(ICM_DECOMPRESSEX);
 839         XX(ICM_DECOMPRESSEX_END);
 840         XX(ICM_SET_STATUS_PROC);
 841     default:
 842         FIXME("(%p,0x%08lx,0x%08lx,0x%08lx) unknown message\n",whic,(DWORD)msg,lParam1,lParam2);
 843     }
 844
 845 #undef XX
 846
 847     if (whic->driverproc) {
 848         /* dwDriverId parameter is the value returned by the DRV_OPEN */
 849         ret = whic->driverproc(whic->driverId, whic->hdrv, msg, lParam1, lParam2);
 850     } else {
 851         ret = SendDriverMessage(whic->hdrv, msg, lParam1, lParam2);
 852     }
 853
 854     TRACE("     -> 0x%08lx\n", ret);
 855     return ret;
 856 }
 857
 858 /***********************************************************************
 859  *              ICSendMessage                   [MSVFW32.@]
 860  */
 861 LRESULT VFWAPI ICSendMessage(HIC hic, UINT msg, DWORD lParam1, DWORD lParam2)
 862 {
 863     WINE_HIC*   whic = MSVIDEO_GetHicPtr(hic);
 864
 865     if (!whic) return ICERR_BADHANDLE;
 866     return MSVIDEO_SendMessage(whic, msg, lParam1, lParam2);
 867 }
 868
 869 /***********************************************************************
 870  *              ICDrawBegin             [MSVFW32.@]
 871  */
 872 DWORD VFWAPIV ICDrawBegin(
 873         HIC                hic,     /* [in] */
 874         DWORD              dwFlags, /* [in] flags */
 875         HPALETTE           hpal,    /* [in] palette to draw with */
 876         HWND               hwnd,    /* [in] window to draw to */
 877         HDC                hdc,     /* [in] HDC to draw to */
 878         INT                xDst,    /* [in] destination rectangle */
 879         INT                yDst,    /* [in] */
 880         INT                dxDst,   /* [in] */
 881         INT                dyDst,   /* [in] */
 882         LPBITMAPINFOHEADER lpbi,    /* [in] format of frame to draw */
 883         INT                xSrc,    /* [in] source rectangle */
 884         INT                ySrc,    /* [in] */
 885         INT                dxSrc,   /* [in] */
 886         INT                dySrc,   /* [in] */
 887         DWORD              dwRate,  /* [in] frames/second = (dwRate/dwScale) */
 888         DWORD              dwScale) /* [in] */
 889 {
 890
 891         ICDRAWBEGIN     icdb;
 892
 893         TRACE("(%p,%ld,%p,%p,%p,%u,%u,%u,%u,%p,%u,%u,%u,%u,%ld,%ld)\n",
 894                   hic, dwFlags, hpal, hwnd, hdc, xDst, yDst, dxDst, dyDst,
 895                   lpbi, xSrc, ySrc, dxSrc, dySrc, dwRate, dwScale);
 896
 897         icdb.dwFlags = dwFlags;
 898         icdb.hpal = hpal;
 899         icdb.hwnd = hwnd;
 900         icdb.hdc = hdc;
 901         icdb.xDst = xDst;
 902         icdb.yDst = yDst;
 903         icdb.dxDst = dxDst;
 904         icdb.dyDst = dyDst;
 905         icdb.lpbi = lpbi;
 906         icdb.xSrc = xSrc;
 907         icdb.ySrc = ySrc;
 908         icdb.dxSrc = dxSrc;
 909         icdb.dySrc = dySrc;
 910         icdb.dwRate = dwRate;
 911         icdb.dwScale = dwScale;
 912         return ICSendMessage(hic,ICM_DRAW_BEGIN,(DWORD)&icdb,sizeof(icdb));
 913 }
 914
 915 /***********************************************************************
 916  *              ICDraw                  [MSVFW32.@]
 917  */
 918 DWORD VFWAPIV ICDraw(HIC hic, DWORD dwFlags, LPVOID lpFormat, LPVOID lpData, DWORD cbData, LONG lTime) {
 919         ICDRAW  icd;
 920
 921         TRACE("(%p,%ld,%p,%p,%ld,%ld)\n",hic,dwFlags,lpFormat,lpData,cbData,lTime);
 922
 923         icd.dwFlags = dwFlags;
 924         icd.lpFormat = lpFormat;
 925         icd.lpData = lpData;
 926         icd.cbData = cbData;
 927         icd.lTime = lTime;
 928
 929         return ICSendMessage(hic,ICM_DRAW,(DWORD)&icd,sizeof(icd));
 930 }
 931
 932 /***********************************************************************
 933  *              ICClose                 [MSVFW32.@]
 934  */
 935 LRESULT WINAPI ICClose(HIC hic)
 936 {
 937     WINE_HIC* whic = MSVIDEO_GetHicPtr(hic);
 938     WINE_HIC** p;
 939
 940     TRACE("(%p)\n",hic);
 941
 942     if (!whic) return ICERR_BADHANDLE;
 943
 944     if (whic->driverproc)
 945     {
 946         MSVIDEO_SendMessage(whic, DRV_CLOSE, 0, 0);
 947         MSVIDEO_SendMessage(whic, DRV_DISABLE, 0, 0);
 948         MSVIDEO_SendMessage(whic, DRV_FREE, 0, 0);
 949     }
 950     else
 951     {
 952         CloseDriver(whic->hdrv, 0, 0);
 953     }
 954
 955     /* remove whic from list */
 956     for (p = &MSVIDEO_FirstHic; *p != NULL; p = &((*p)->next))
 957     {
 958         if ((*p) == whic)
 959         {
 960             *p = whic->next;
 961             break;
 962         }
 963     }
 964
 965     HeapFree(GetProcessHeap(), 0, whic);
 966     return 0;
 967 }
 968
 969
 970
 971 /***********************************************************************
 972  *              ICImageCompress [MSVFW32.@]
 973  */
 974 HANDLE VFWAPI ICImageCompress(
 975         HIC hic, UINT uiFlags,
 976         LPBITMAPINFO lpbiIn, LPVOID lpBits,
 977         LPBITMAPINFO lpbiOut, LONG lQuality,
 978         LONG* plSize)
 979 {
 980         FIXME("(%p,%08x,%p,%p,%p,%ld,%p)\n",
 981                 hic, uiFlags, lpbiIn, lpBits, lpbiOut, lQuality, plSize);
 982
 983         return NULL;
 984 }
 985
 986 /***********************************************************************
 987  *              ICImageDecompress       [MSVFW32.@]
 988  */
 989
 990 HANDLE VFWAPI ICImageDecompress(
 991         HIC hic, UINT uiFlags, LPBITMAPINFO lpbiIn,
 992         LPVOID lpBits, LPBITMAPINFO lpbiOut)
 993 {
 994         HGLOBAL hMem = NULL;
 995         BYTE*   pMem = NULL;
 996         BOOL    bReleaseIC = FALSE;
 997         BYTE*   pHdr = NULL;
 998         LONG    cbHdr = 0;
 999         BOOL    bSucceeded = FALSE;
1000         BOOL    bInDecompress = FALSE;
1001         DWORD   biSizeImage;
1002
1003         TRACE("(%p,%08x,%p,%p,%p)\n",
1004                 hic, uiFlags, lpbiIn, lpBits, lpbiOut);
1005
1006         if ( hic == NULL )
1007         {
1008                 hic = ICDecompressOpen( ICTYPE_VIDEO, 0, &lpbiIn->bmiHeader, (lpbiOut != NULL) ? &lpbiOut->bmiHeader : NULL );
1009                 if ( hic == NULL )
1010                 {
1011                         WARN("no handler\n" );
1012                         goto err;
1013                 }
1014                 bReleaseIC = TRUE;
1015         }
1016         if ( uiFlags != 0 )
1017         {
1018                 FIXME( "unknown flag %08x\n", uiFlags );
1019                 goto err;
1020         }
1021         if ( lpbiIn == NULL || lpBits == NULL )
1022         {
1023                 WARN("invalid argument\n");
1024                 goto err;
1025         }
1026
1027         if ( lpbiOut != NULL )
1028         {
1029                 if ( lpbiOut->bmiHeader.biSize != sizeof(BITMAPINFOHEADER) )
1030                         goto err;
1031                 cbHdr = sizeof(BITMAPINFOHEADER);
1032                 if ( lpbiOut->bmiHeader.biCompression == 3 )
1033                         cbHdr += sizeof(DWORD)*3;
1034                 else
1035                 if ( lpbiOut->bmiHeader.biBitCount <= 8 )
1036                 {
1037                         if ( lpbiOut->bmiHeader.biClrUsed == 0 )
1038                                 cbHdr += sizeof(RGBQUAD) * (1<<lpbiOut->bmiHeader.biBitCount);
1039                         else
1040                                 cbHdr += sizeof(RGBQUAD) * lpbiOut->bmiHeader.biClrUsed;
1041                 }
1042         }
1043         else
1044         {
1045                 TRACE( "get format\n" );
1046
1047                 cbHdr = ICDecompressGetFormatSize(hic,lpbiIn);
1048                 if ( cbHdr < sizeof(BITMAPINFOHEADER) )
1049                         goto err;
1050                 pHdr = (BYTE*)HeapAlloc(GetProcessHeap(),0,cbHdr+sizeof(RGBQUAD)*256);
1051                 if ( pHdr == NULL )
1052                         goto err;
1053                 ZeroMemory( pHdr, cbHdr+sizeof(RGBQUAD)*256 );
1054                 if ( ICDecompressGetFormat( hic, lpbiIn, (BITMAPINFO*)pHdr ) != ICERR_OK )
1055                         goto err;
1056                 lpbiOut = (BITMAPINFO*)pHdr;
1057                 if ( lpbiOut->bmiHeader.biBitCount <= 8 &&
1058                          ICDecompressGetPalette( hic, lpbiIn, lpbiOut ) != ICERR_OK &&
1059                          lpbiIn->bmiHeader.biBitCount == lpbiOut->bmiHeader.biBitCount )
1060                 {
1061                         if ( lpbiIn->bmiHeader.biClrUsed == 0 )
1062                                 memcpy( lpbiOut->bmiColors, lpbiIn->bmiColors, sizeof(RGBQUAD)*(1<<lpbiOut->bmiHeader.biBitCount) );
1063                         else
1064                                 memcpy( lpbiOut->bmiColors, lpbiIn->bmiColors, sizeof(RGBQUAD)*lpbiIn->bmiHeader.biClrUsed );
1065                 }
1066                 if ( lpbiOut->bmiHeader.biBitCount <= 8 &&
1067                          lpbiOut->bmiHeader.biClrUsed == 0 )
1068                         lpbiOut->bmiHeader.biClrUsed = 1<<lpbiOut->bmiHeader.biBitCount;
1069
1070                 lpbiOut->bmiHeader.biSize = sizeof(BITMAPINFOHEADER);
1071                 cbHdr = sizeof(BITMAPINFOHEADER) + sizeof(RGBQUAD)*lpbiOut->bmiHeader.biClrUsed;
1072         }
1073
1074         biSizeImage = lpbiOut->bmiHeader.biSizeImage;
1075         if ( biSizeImage == 0 )
1076                 biSizeImage = ((((lpbiOut->bmiHeader.biWidth * lpbiOut->bmiHeader.biBitCount + 7) >> 3) + 3) & (~3)) * abs(lpbiOut->bmiHeader.biHeight);
1077
1078         TRACE( "call ICDecompressBegin\n" );
1079
1080         if ( ICDecompressBegin( hic, lpbiIn, lpbiOut ) != ICERR_OK )
1081                 goto err;
1082         bInDecompress = TRUE;
1083
1084         TRACE( "cbHdr %ld, biSizeImage %ld\n", cbHdr, biSizeImage );
1085
1086         hMem = GlobalAlloc( GMEM_MOVEABLE|GMEM_ZEROINIT, cbHdr + biSizeImage );
1087         if ( hMem == NULL )
1088         {
1089                 WARN( "out of memory\n" );
1090                 goto err;
1091         }
1092         pMem = (BYTE*)GlobalLock( hMem );
1093         if ( pMem == NULL )
1094                 goto err;
1095         memcpy( pMem, lpbiOut, cbHdr );
1096
1097         TRACE( "call ICDecompress\n" );
1098         if ( ICDecompress( hic, 0, &lpbiIn->bmiHeader, lpBits, &lpbiOut->bmiHeader, pMem+cbHdr ) != ICERR_OK )
1099                 goto err;
1100
1101         bSucceeded = TRUE;
1102 err:
1103         if ( bInDecompress )
1104                 ICDecompressEnd( hic );
1105         if ( bReleaseIC )
1106                 ICClose(hic);
1107         if ( pHdr != NULL )
1108                 HeapFree(GetProcessHeap(),0,pHdr);
1109         if ( pMem != NULL )
1110                 GlobalUnlock( hMem );
1111         if ( !bSucceeded && hMem != NULL )
1112         {
1113                 GlobalFree(hMem); hMem = NULL;
1114         }
1115
1116         return (HANDLE)hMem;
1117 }
1118
1119 static BOOL GetFileNamePreview(LPVOID lpofn,BOOL bSave,BOOL bUnicode)
1120 {
1121   CHAR    szFunctionName[20];
1122   BOOL    (*fnGetFileName)(LPVOID);
1123   HMODULE hComdlg32;
1124   BOOL    ret;
1125
1126   FIXME("(%p,%d,%d), semi-stub!\n",lpofn,bSave,bUnicode);
1127
1128   lstrcpyA(szFunctionName, (bSave ? "GetSaveFileName" : "GetOpenFileName"));
1129   lstrcatA(szFunctionName, (bUnicode ? "W" : "A"));
1130
1131   hComdlg32 = LoadLibraryA("COMDLG32.DLL");
1132   if (hComdlg32 == NULL)
1133     return FALSE;
1134
1135   fnGetFileName = (LPVOID)GetProcAddress(hComdlg32, szFunctionName);
1136   if (fnGetFileName == NULL)
1137     return FALSE;
1138
1139   /* FIXME: need to add OFN_ENABLEHOOK and our own handler */
1140   ret = fnGetFileName(lpofn);
1141
1142   FreeLibrary(hComdlg32);
1143   return ret;
1144 }
1145
1146 /***********************************************************************
1147  *              GetOpenFileNamePreviewA [MSVFW32.@]
1148  */
1149 BOOL WINAPI GetOpenFileNamePreviewA(LPOPENFILENAMEA lpofn)
1150 {
1151   FIXME("(%p), semi-stub!\n", lpofn);
1152
1153   return GetFileNamePreview(lpofn, FALSE, FALSE);
1154 }
1155
1156 /***********************************************************************
1157  *              GetOpenFileNamePreviewW [MSVFW32.@]
1158  */
1159 BOOL WINAPI GetOpenFileNamePreviewW(LPOPENFILENAMEW lpofn)
1160 {
1161   FIXME("(%p), semi-stub!\n", lpofn);
1162
1163   return GetFileNamePreview(lpofn, FALSE, TRUE);
1164 }
1165
1166 /***********************************************************************
1167  *              GetSaveFileNamePreviewA [MSVFW32.@]
1168  */
1169 BOOL WINAPI GetSaveFileNamePreviewA(LPOPENFILENAMEA lpofn)
1170 {
1171   FIXME("(%p), semi-stub!\n", lpofn);
1172
1173   return GetFileNamePreview(lpofn, TRUE, FALSE);
1174 }
1175
1176 /***********************************************************************
1177  *              GetSaveFileNamePreviewW [MSVFW32.@]
1178  */
1179 BOOL WINAPI GetSaveFileNamePreviewW(LPOPENFILENAMEW lpofn)
1180 {
1181   FIXME("(%p), semi-stub!\n", lpofn);
1182
1183   return GetFileNamePreview(lpofn, TRUE, TRUE);
1184 }