dlls/dmloader/loader.c

   1 /* IDirectMusicLoaderImpl
   2  *
   3  * Copyright (C) 2003-2004 Rok Mandeljc
   4  *
   5  * This program is free software; you can redistribute it and/or modify
   6  * it under the terms of the GNU General Public License as published by
   7  * the Free Software Foundation; either version 2 of the License, or
   8  * (at your option) any later version.
   9  *
  10  * This program is distributed in the hope that it will be useful,
  11  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13  * GNU Library General Public License for more details.
  14  *
  15  * You should have received a copy of the GNU General Public License
  16  * along with this program; if not, write to the Free Software
  17  * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
  18  */
  19
  20 #include "dmloader_private.h"
  21
  22 WINE_DEFAULT_DEBUG_CHANNEL(dmloader);
  23
  24 /*****************************************************************************
  25  * IDirectMusicLoaderImpl implementation
  26  */
  27 /* IUnknown/IDirectMusicLoader(8) part: */
  28 HRESULT WINAPI IDirectMusicLoaderImpl_IDirectMusicLoader_QueryInterface (LPDIRECTMUSICLOADER8 iface, REFIID riid, LPVOID *ppobj) {
  29         ICOM_THIS_MULTI(IDirectMusicLoaderImpl, LoaderVtbl, iface);
  30
  31         TRACE("(%p, %s, %p)\n",This, debugstr_dmguid(riid), ppobj);
  32         if (IsEqualIID (riid, &IID_IUnknown) ||
  33             IsEqualIID (riid, &IID_IDirectMusicLoader) ||
  34             IsEqualIID (riid, &IID_IDirectMusicLoader8)) {
  35                 IDirectMusicLoaderImpl_IDirectMusicLoader_AddRef (iface);
  36                 *ppobj = This;
  37                 return S_OK;
  38         }
  39
  40         WARN(": not found\n");
  41         return E_NOINTERFACE;
  42 }
  43
  44 ULONG WINAPI IDirectMusicLoaderImpl_IDirectMusicLoader_AddRef (LPDIRECTMUSICLOADER8 iface) {
  45         ICOM_THIS_MULTI(IDirectMusicLoaderImpl, LoaderVtbl, iface);
  46         TRACE("(%p): AddRef from %ld\n", This, This->dwRef);
  47         return InterlockedIncrement (&This->dwRef);
  48 }
  49
  50 ULONG WINAPI IDirectMusicLoaderImpl_IDirectMusicLoader_Release (LPDIRECTMUSICLOADER8 iface) {
  51         ICOM_THIS_MULTI(IDirectMusicLoaderImpl, LoaderVtbl, iface);
  52
  53         DWORD dwRef = InterlockedDecrement (&This->dwRef);
  54         TRACE("(%p): ReleaseRef to %ld\n", This, This->dwRef);
  55         if (dwRef == 0) {
  56                 DMUSIC_DestroyDirectMusicLoaderImpl (iface);
  57                 HeapFree (GetProcessHeap(), 0, This);
  58         }
  59
  60         return dwRef;
  61 }
  62
  63 HRESULT WINAPI IDirectMusicLoaderImpl_IDirectMusicLoader_GetObject (LPDIRECTMUSICLOADER8 iface, LPDMUS_OBJECTDESC pDesc, REFIID riid, LPVOID* ppv) {
  64         ICOM_THIS_MULTI(IDirectMusicLoaderImpl, LoaderVtbl, iface);
  65         HRESULT result = S_OK;
  66         HRESULT ret = S_OK; /* used at the end of function, to determine whether everything went OK */
  67
  68         struct list *pEntry;
  69         LPWINE_LOADER_ENTRY pObjectEntry = NULL;
  70         LPSTREAM pStream;
  71         IPersistStream* pPersistStream = NULL;
  72
  73         LPDIRECTMUSICOBJECT pObject;
  74         DMUS_OBJECTDESC GotDesc;
  75         BOOL bCache;
  76
  77         TRACE("(%p, %p, %s, %p): pDesc:\n%s", This, pDesc, debugstr_dmguid(riid), ppv, debugstr_DMUS_OBJECTDESC(pDesc));
  78
  79         /* sometimes it happens that guidClass is missing... which is a BadThingTM */
  80         if (!(pDesc->dwValidData & DMUS_OBJ_CLASS)) {
  81           ERR(": guidClass not valid but needed\n");
  82           *ppv = NULL;
  83           return DMUS_E_LOADER_NOCLASSID;
  84         }
  85
  86         /* OK, first we iterate thru the list of objects we know about; these are either loaded (GetObject, LoadObjectFromFile)
  87            or set via SetObject; */
  88         TRACE(": looking if we have object in the cache or if it can be found via alias\n");
  89         LIST_FOR_EACH(pEntry, This->pObjects) {
  90                 LPWINE_LOADER_ENTRY pExistingEntry = LIST_ENTRY(pEntry, WINE_LOADER_ENTRY, entry);
  91                 if ((pDesc->dwValidData & DMUS_OBJ_OBJECT) &&
  92                         (pExistingEntry->Desc.dwValidData & DMUS_OBJ_OBJECT) &&
  93                         IsEqualGUID (&pDesc->guidObject, &pExistingEntry->Desc.guidObject)) {
  94                         TRACE(": found it by object GUID\n");
  95                         /* I suppose such stuff can happen only when GUID for object is given (GUID_DefaultGMCollection) */
  96                         if (pExistingEntry->bInvalidDefaultDLS) {
  97                                 TRACE(": found faulty default DLS collection... enabling M$ compliant behaviour\n");
  98                                 return DMUS_E_LOADER_NOFILENAME;
  99                         }
 100                         if (pExistingEntry->Desc.dwValidData & DMUS_OBJ_LOADED) {
 101                                 TRACE(": already loaded\n");
 102                                 return IDirectMusicObject_QueryInterface (pExistingEntry->pObject, riid, ppv);
 103                         } else {
 104                                 TRACE(": not loaded yet\n");
 105                                 pObjectEntry = pExistingEntry;
 106                         }
 107                 }
 108                 else if ((pDesc->dwValidData & (DMUS_OBJ_FILENAME | DMUS_OBJ_FULLPATH)) &&
 109                                 (pExistingEntry->Desc.dwValidData & (DMUS_OBJ_FILENAME | DMUS_OBJ_FULLPATH)) &&
 110                                 !strncmpW (pDesc->wszFileName, pExistingEntry->Desc.wszFileName, DMUS_MAX_FILENAME)) {
 111                         TRACE(": found it by fullpath filename\n");
 112                         if (pExistingEntry->Desc.dwValidData & DMUS_OBJ_LOADED) {
 113                                 TRACE(": already loaded\n");
 114                                 return IDirectMusicObject_QueryInterface (pExistingEntry->pObject, riid, ppv);
 115                         } else {
 116                                 TRACE(": not loaded yet\n");
 117                                 pObjectEntry = pExistingEntry;
 118                         }
 119                 }
 120                 else if ((pDesc->dwValidData & (DMUS_OBJ_NAME | DMUS_OBJ_CATEGORY)) &&
 121                                 (pExistingEntry->Desc.dwValidData & (DMUS_OBJ_NAME | DMUS_OBJ_CATEGORY)) &&
 122                                 !strncmpW (pDesc->wszName, pExistingEntry->Desc.wszName, DMUS_MAX_NAME) &&
 123                                 !strncmpW (pDesc->wszCategory, pExistingEntry->Desc.wszCategory, DMUS_MAX_CATEGORY)) {
 124                         TRACE(": found it by name and category\n");
 125                         if (pExistingEntry->Desc.dwValidData & DMUS_OBJ_LOADED) {
 126                                 TRACE(": already loaded\n");
 127                                 return IDirectMusicObject_QueryInterface (pExistingEntry->pObject, riid, ppv);
 128                         } else {
 129                                 TRACE(": not loaded yet\n");
 130                                 pObjectEntry = pExistingEntry;
 131                         }
 132                 }
 133                 else if ((pDesc->dwValidData & DMUS_OBJ_NAME) &&
 134                                 (pExistingEntry->Desc.dwValidData & DMUS_OBJ_NAME) &&
 135                                 !strncmpW (pDesc->wszName, pExistingEntry->Desc.wszName, DMUS_MAX_NAME)) {
 136                         TRACE(": found it by name\n");
 137                         if (pExistingEntry->Desc.dwValidData & DMUS_OBJ_LOADED) {
 138                                 TRACE(": already loaded\n");
 139                                 return IDirectMusicObject_QueryInterface (pExistingEntry->pObject, riid, ppv);
 140                         } else {
 141                                 TRACE(": not loaded yet\n");
 142                                 pObjectEntry = pExistingEntry;
 143                         }
 144                 }
 145                 else if ((pDesc->dwValidData & DMUS_OBJ_FILENAME) &&
 146                                 (pExistingEntry->Desc.dwValidData & DMUS_OBJ_FILENAME) &&
 147                                 !strncmpW (pDesc->wszFileName, pExistingEntry->Desc.wszFileName, DMUS_MAX_FILENAME)) {
 148                         TRACE(": found it by filename\n");
 149                         if (pExistingEntry->Desc.dwValidData & DMUS_OBJ_LOADED) {
 150                                 TRACE(": already loaded\n");
 151                                 return IDirectMusicObject_QueryInterface (pExistingEntry->pObject, riid, ppv);
 152                         } else {
 153                                 TRACE(": not loaded yet\n");
 154                                 pObjectEntry = pExistingEntry;
 155                         }
 156                 }
 157         }
 158
 159         /* basically, if we found alias, we use its descriptor to load...
 160            else we use info we were given */
 161         if (pObjectEntry) {
 162                 TRACE(": found alias entry for requested object... using stored info\n");
 163                 /* I think in certain cases it can happen that entry's descriptor lacks info
 164                    where to load from (e.g.: if we loaded from stream and then released object
 165                    from cache; then only it's CLSID, GUID and perhaps name are left); so just
 166                    overwrite info entry has (since it ought to be 100% correct) */
 167                 DMUSIC_CopyDescriptor (pDesc, &pObjectEntry->Desc);
 168                 /*pDesc = &pObjectEntry->Desc; */ /* FIXME: is this OK? */
 169         } else {
 170                 TRACE(": no cache/alias entry found for requested object\n");
 171         }
 172
 173         if (pDesc->dwValidData & DMUS_OBJ_URL) {
 174                 TRACE(": loading from URLs not supported yet\n");
 175                 return DMUS_E_LOADER_FORMATNOTSUPPORTED;
 176         }
 177         else if (pDesc->dwValidData & DMUS_OBJ_FILENAME) {
 178                 /* load object from file */
 179                 /* generate filename; if it's full path, don't add search
 180                    directory path, otherwise do */
 181                 WCHAR wszFileName[MAX_PATH];
 182
 183                 if (pDesc->dwValidData & DMUS_OBJ_FULLPATH) {
 184                         lstrcpyW(wszFileName, pDesc->wszFileName);
 185                 } else {
 186                         WCHAR *p, wszSearchPath[MAX_PATH];
 187                         DMUSIC_GetLoaderSettings (iface, &pDesc->guidClass, wszSearchPath, NULL);
 188                         lstrcpyW(wszFileName, wszSearchPath);
 189                         p = wszFileName + lstrlenW(wszFileName);
 190                         if (p > wszFileName && p[-1] != '\\') *p++ = '\\';
 191                         strcpyW(p, pDesc->wszFileName);
 192                 }
 193                 TRACE(": loading from file (%s)\n", debugstr_w(wszFileName));
 194                 /* create stream and associate it with file */
 195                 result = DMUSIC_CreateDirectMusicLoaderFileStream ((LPVOID*)&pStream);
 196                 if (FAILED(result)) {
 197                         ERR(": could not create loader stream\n");
 198                         return result;
 199                 }
 200                 result = IDirectMusicLoaderFileStream_Attach (pStream, wszFileName, iface);
 201                 if (FAILED(result)) {
 202                         ERR(": could not attach stream to file\n");
 203                         return result;
 204                 }
 205
 206         }
 207         else if (pDesc->dwValidData & DMUS_OBJ_MEMORY) {
 208                 /* load object from resource */
 209                 TRACE(": loading from resource\n");
 210                 /* create stream and associate it with given resource */
 211                 result = DMUSIC_CreateDirectMusicLoaderResourceStream ((LPVOID*)&pStream);
 212                 if (FAILED(result)) {
 213                         ERR(": could not create resource stream\n");
 214                         return result;
 215                 }
 216                 result = IDirectMusicLoaderResourceStream_Attach (pStream, pDesc->pbMemData, pDesc->llMemLength, 0, iface);
 217                 if (FAILED(result)) {
 218                         ERR(": could not attach stream to resource\n");
 219                         return result;
 220                 }
 221         }
 222         else if (pDesc->dwValidData & DMUS_OBJ_STREAM) {
 223                 /* load object from stream */
 224                 TRACE(": loading from stream\n");
 225                 /* create universal stream and associate it with given one */
 226                 result = DMUSIC_CreateDirectMusicLoaderGenericStream ((LPVOID*)&pStream);
 227                 if (FAILED(result)) {
 228                         ERR(": could not create generic stream\n");
 229                         return result;
 230                 }
 231                 result = IDirectMusicLoaderGenericStream_Attach (pStream, pDesc->pStream, iface);
 232                 if (FAILED(result)) {
 233                         ERR(": failed to attach stream\n");
 234                         return result;
 235                 }
 236         } else {
 237                 /* nowhere to load from */
 238                 FIXME(": unknown/unsupported way of loading\n");
 239                 return DMUS_E_LOADER_NOFILENAME; /* test shows this is returned */
 240         }
 241
 242         /* create object */
 243         result = CoCreateInstance (&pDesc->guidClass, NULL, CLSCTX_INPROC_SERVER, &IID_IDirectMusicObject, (LPVOID*)&pObject);
 244         if (FAILED(result)) {
 245                 ERR(": could not create object\n");
 246                 return result;
 247         }
 248         /* acquire PersistStream interface */
 249         result = IDirectMusicObject_QueryInterface (pObject, &IID_IPersistStream, (LPVOID*)&pPersistStream);
 250         if (FAILED(result)) {
 251                 ERR("failed to Query\n");
 252                 return result;
 253         }
 254         /* load */
 255         result = IPersistStream_Load (pPersistStream, pStream);
 256         if (result != S_OK) {
 257                 WARN(": failed to (completely) load object (%s)\n", debugstr_dmreturn(result));
 258                 ret = DMUS_S_PARTIALLOAD /*result*/;
 259         }
 260         /* get descriptor */
 261         DM_STRUCT_INIT(&GotDesc);
 262         result = IDirectMusicObject_GetDescriptor (pObject, &GotDesc);
 263         /* set filename (if we loaded via filename) */
 264         if (pDesc->dwValidData & DMUS_OBJ_FILENAME) {
 265                 GotDesc.dwValidData |= (pDesc->dwValidData & (DMUS_OBJ_FILENAME | DMUS_OBJ_FULLPATH));
 266                 strcpyW (GotDesc.wszFileName, pDesc->wszFileName);
 267         }
 268         if (FAILED(result)) {
 269                 ERR(": failed to get descriptor\n");
 270                 return result;
 271         }
 272         /* release all loading related stuff */
 273         IStream_Release (pStream);
 274         IPersistStream_Release (pPersistStream);
 275
 276         /* add object to cache/overwrite existing info (if cache is enabled) */
 277         DMUSIC_GetLoaderSettings (iface, &pDesc->guidClass, NULL, &bCache);
 278         if (bCache) {
 279                 if (!pObjectEntry) {
 280                         pObjectEntry = HeapAlloc (GetProcessHeap (), HEAP_ZERO_MEMORY, sizeof(WINE_LOADER_ENTRY));
 281                         DM_STRUCT_INIT(&pObjectEntry->Desc);
 282                         if (pObject) {
 283                                 DMUSIC_CopyDescriptor (&pObjectEntry->Desc, &GotDesc);
 284                                 pObjectEntry->pObject = pObject;
 285                                 pObjectEntry->bInvalidDefaultDLS = FALSE;
 286                         }
 287                         list_add_head (This->pObjects, &pObjectEntry->entry);
 288                 } else {
 289                         if (pObject) {
 290                                 DMUSIC_CopyDescriptor (&pObjectEntry->Desc, &GotDesc);
 291                                 pObjectEntry->pObject = pObject;
 292                                 pObjectEntry->bInvalidDefaultDLS = FALSE;
 293                         }
 294                 }
 295                 TRACE(": filled in cache entry\n");
 296         } else TRACE(": caching disabled\n");
 297
 298 #if 0
 299         /* for debug purposes (e.g. to check if all files are cached) */
 300         TRACE("*** Loader's cache ***\n");
 301         int i = 0;
 302         LIST_FOR_EACH (pEntry, This->pObjects) {
 303                 i++;
 304                 pObjectEntry = LIST_ENTRY(pEntry, WINE_LOADER_ENTRY, entry);
 305                 TRACE(": entry nr. %i:\n%s  - bInvalidDefaultDLS = %i\n  - pObject = %p\n", i, debugstr_DMUS_OBJECTDESC(&pObjectEntry->Desc), pObjectEntry->bInvalidDefaultDLS, pObjectEntry->pObject);
 306         }
 307 #endif
 308
 309         result = IDirectMusicObject_QueryInterface (pObject, riid, ppv);
 310         if (!bCache) IDirectMusicObject_Release (pObject); /* since loader's reference is not needed */
 311         /* if there was trouble with loading, and if no other error occurred,
 312            we should return DMUS_S_PARTIALLOAD; else, error is returned */
 313         if (result == S_OK)
 314                 return ret;
 315         else
 316                 return result;
 317 }
 318
 319 HRESULT WINAPI IDirectMusicLoaderImpl_IDirectMusicLoader_SetObject (LPDIRECTMUSICLOADER8 iface, LPDMUS_OBJECTDESC pDesc) {
 320         ICOM_THIS_MULTI(IDirectMusicLoaderImpl, LoaderVtbl, iface);
 321         LPSTREAM pStream;
 322         LPDIRECTMUSICOBJECT pObject;
 323         DMUS_OBJECTDESC Desc;
 324         struct list *pEntry;
 325         LPWINE_LOADER_ENTRY pObjectEntry, pNewEntry;
 326
 327         TRACE("(%p, %p): pDesc:\n%s\n", This, pDesc, debugstr_DMUS_OBJECTDESC(pDesc));
 328
 329         /* create stream and load additional info from it */
 330         if (pDesc->dwValidData & DMUS_OBJ_FILENAME) {
 331                 /* generate filename; if it's full path, don't add search
 332                    directory path, otherwise do */
 333                 WCHAR wszFileName[MAX_PATH];
 334
 335                 if (pDesc->dwValidData & DMUS_OBJ_FULLPATH) {
 336                         lstrcpyW(wszFileName, pDesc->wszFileName);
 337                 } else {
 338                         WCHAR *p;
 339                         WCHAR wszSearchPath[MAX_PATH];
 340                         DMUSIC_GetLoaderSettings (iface, &pDesc->guidClass, wszSearchPath, NULL);
 341                         lstrcpyW(wszFileName, wszSearchPath);
 342                         p = wszFileName + lstrlenW(wszFileName);
 343                         if (p > wszFileName && p[-1] != '\\') *p++ = '\\';
 344                         strcpyW(p, pDesc->wszFileName);
 345                 }
 346                 /* create stream */
 347                 DMUSIC_CreateDirectMusicLoaderFileStream ((LPVOID*)&pStream);
 348                 /* attach stream */
 349                 IDirectMusicLoaderFileStream_Attach (pStream, wszFileName, iface);
 350         }
 351         else if (pDesc->dwValidData & DMUS_OBJ_STREAM) {
 352                 /* create stream */
 353                 DMUSIC_CreateDirectMusicLoaderGenericStream ((LPVOID*)&pStream);
 354                 /* attach stream */
 355                 IDirectMusicLoaderGenericStream_Attach (pStream, pDesc->pStream, iface);
 356         }
 357         else if (pDesc->dwValidData & DMUS_OBJ_MEMORY) {
 358                 /* create stream */
 359                 DMUSIC_CreateDirectMusicLoaderResourceStream ((LPVOID*)&pStream);
 360                 /* attach stream */
 361                 IDirectMusicLoaderResourceStream_Attach (pStream, pDesc->pbMemData, pDesc->llMemLength, 0, iface);
 362         }
 363         else {
 364                 ERR(": no way to get additional info\n");
 365                 return DMUS_E_LOADER_FAILEDOPEN;
 366         }
 367
 368         /* create object */
 369         CoCreateInstance (&pDesc->guidClass, NULL, CLSCTX_INPROC_SERVER, &IID_IDirectMusicObject, (LPVOID*)&pObject);
 370
 371         /* *sigh*... some ms objects have lousy implementation of ParseDescriptor that clears input descriptor :( */
 372 #ifdef NOW_WE_ARE_FREE
 373         /* parse descriptor: we actually use input descriptor; fields that aren't available from stream remain,
 374            otherwise real info is set */
 375          IDirectMusicObject_ParseDescriptor (pObject, pStream, pDesc);
 376 #endif
 377         /* hmph... due to some trouble I had with certain tests, we store current position and then set it back */
 378         DM_STRUCT_INIT(&Desc);
 379         if (FAILED(IDirectMusicObject_ParseDescriptor (pObject, pStream, &Desc))) {
 380                 ERR(": couldn't parse descriptor\n");
 381                 return DMUS_E_LOADER_FORMATNOTSUPPORTED;
 382         }
 383
 384         /* copy elements from parsed descriptor into input descriptor; this sets new info, overwriting if necessary,
 385            but leaves info that's provided by input and not available from stream */
 386         DMUSIC_CopyDescriptor (pDesc, &Desc);
 387
 388         /* release everything */
 389         IDirectMusicObject_Release (pObject);
 390         IStream_Release (pStream);
 391
 392         /* sometimes it happens that twisted programs call SetObject for same object twice...
 393            in such cases, native loader returns S_OK and does nothing... a sound plan */
 394         LIST_FOR_EACH (pEntry, This->pObjects) {
 395                 pObjectEntry = LIST_ENTRY (pEntry, WINE_LOADER_ENTRY, entry);
 396                 if (!memcmp (&pObjectEntry->Desc, pDesc, sizeof(DMUS_OBJECTDESC))) {
 397                         TRACE(": exacly same entry already exists\n");
 398                         return S_OK;
 399                 }
 400         }
 401
 402         /* add new entry */
 403         TRACE(": adding alias entry with following info: \n%s\n", debugstr_DMUS_OBJECTDESC(pDesc));
 404         pNewEntry = HeapAlloc (GetProcessHeap (), HEAP_ZERO_MEMORY, sizeof(WINE_LOADER_ENTRY));
 405         /* use this function instead of pure memcpy due to streams (memcpy just copies pointer),
 406            which is basically used further by app that called SetDescriptor... better safety than exception */
 407         DMUSIC_CopyDescriptor (&pNewEntry->Desc, pDesc);
 408         list_add_head (This->pObjects, &pNewEntry->entry);
 409
 410         return S_OK;
 411 }
 412
 413 HRESULT WINAPI IDirectMusicLoaderImpl_IDirectMusicLoader_SetSearchDirectory (LPDIRECTMUSICLOADER8 iface, REFGUID rguidClass, WCHAR* pwzPath, BOOL fClear) {
 414         WCHAR wszCurrentPath[MAX_PATH];
 415         ICOM_THIS_MULTI(IDirectMusicLoaderImpl, LoaderVtbl, iface);
 416         TRACE("(%p, %s, %s, %d)\n", This, debugstr_dmguid(rguidClass), debugstr_w(pwzPath), fClear);
 417         FIXME(": fClear ignored\n");
 418         DMUSIC_GetLoaderSettings (iface, rguidClass, wszCurrentPath, NULL);
 419         if (!strncmpW(wszCurrentPath, pwzPath, MAX_PATH)) {
 420           return S_FALSE;
 421         }
 422         /* FIXME: check if path is valid; else return DMUS_E_LOADER_BADPATH */
 423         return DMUSIC_SetLoaderSettings (iface, rguidClass, pwzPath, NULL);
 424 }
 425
 426 HRESULT WINAPI IDirectMusicLoaderImpl_IDirectMusicLoader_ScanDirectory (LPDIRECTMUSICLOADER8 iface, REFGUID rguidClass, WCHAR* pwzFileExtension, WCHAR* pwzScanFileName) {
 427         static const WCHAR wszAny[] = {'*',0};
 428         WIN32_FIND_DATAW FileData;
 429         HANDLE hSearch;
 430         WCHAR wszSearchString[MAX_PATH];
 431         WCHAR *p;
 432         HRESULT result;
 433         ICOM_THIS_MULTI(IDirectMusicLoaderImpl, LoaderVtbl, iface);
 434         TRACE("(%p, %s, %p, %p)\n", This, debugstr_dmguid(rguidClass), pwzFileExtension, pwzScanFileName);
 435         if (IsEqualGUID (rguidClass, &GUID_DirectMusicAllTypes) || !DMUSIC_IsValidLoadableClass(rguidClass)) {
 436                 ERR(": rguidClass invalid CLSID\n");
 437                 return REGDB_E_CLASSNOTREG;
 438         }
 439
 440         /* get search path for given class */
 441         DMUSIC_GetLoaderSettings (iface, rguidClass, wszSearchString, NULL);
 442
 443         p = wszSearchString + lstrlenW(wszSearchString);
 444         if (p > wszSearchString && p[-1] != '\\') *p++ = '\\';
 445         *p++ = '*'; /* any file */
 446         if (strcmpW (pwzFileExtension, wszAny)) *p++ = '.'; /* if we have actual extension, put a dot */
 447         strcpyW (p, pwzFileExtension);
 448
 449         TRACE(": search string: %s\n", debugstr_w(wszSearchString));
 450
 451         hSearch = FindFirstFileW (wszSearchString, &FileData);
 452         if (hSearch == INVALID_HANDLE_VALUE) {
 453                 TRACE(": no files found\n");
 454                 return S_FALSE;
 455         }
 456
 457         do {
 458                 DMUS_OBJECTDESC Desc;
 459                 DM_STRUCT_INIT(&Desc);
 460                 Desc.dwValidData = DMUS_OBJ_CLASS | DMUS_OBJ_FILENAME | DMUS_OBJ_FULLPATH | DMUS_OBJ_DATE;
 461                 memcpy (&Desc.guidClass, rguidClass, sizeof(GUID));
 462                 strcpyW (Desc.wszFileName, FileData.cFileName);
 463                 FileTimeToLocalFileTime (&FileData.ftCreationTime, &Desc.ftDate);
 464                 IDirectMusicLoader8_SetObject (iface, &Desc);
 465
 466                 if (!FindNextFileW (hSearch, &FileData)) {
 467                         if (GetLastError () == ERROR_NO_MORE_FILES) {
 468                                 TRACE(": search completed\n");
 469                                 result = S_OK;
 470                         } else {
 471                                 ERR(": could not get next file\n");
 472                                 result = E_FAIL;
 473                         }
 474                         FindClose (hSearch);
 475                         return result;
 476                 }
 477         } while (1);
 478 }
 479
 480 HRESULT WINAPI IDirectMusicLoaderImpl_IDirectMusicLoader_CacheObject (LPDIRECTMUSICLOADER8 iface, IDirectMusicObject* pObject) {
 481         DMUS_OBJECTDESC Desc;
 482         HRESULT result = DMUS_E_LOADER_OBJECTNOTFOUND;
 483         struct list *pEntry;
 484         LPWINE_LOADER_ENTRY  pObjectEntry = NULL;
 485
 486         ICOM_THIS_MULTI(IDirectMusicLoaderImpl, LoaderVtbl, iface);
 487         TRACE("(%p, %p)\n", This, pObject);
 488
 489         /* get descriptor */
 490         DM_STRUCT_INIT(&Desc);
 491         IDirectMusicObject_GetDescriptor (pObject, &Desc);
 492
 493         /* now iterate thru list and check if we have alias (without object), corresponding
 494            to descriptor of input object */
 495         LIST_FOR_EACH(pEntry, This->pObjects) {
 496                 pObjectEntry = LIST_ENTRY(pEntry, WINE_LOADER_ENTRY, entry);
 497                 if ((Desc.dwValidData & DMUS_OBJ_OBJECT) &&
 498                         (pObjectEntry->Desc.dwValidData & DMUS_OBJ_OBJECT) &&
 499                         IsEqualGUID (&Desc.guidObject, &pObjectEntry->Desc.guidObject)) {
 500                         TRACE(": found it by object GUID\n");
 501                         if ((pObjectEntry->Desc.dwValidData & DMUS_OBJ_LOADED) && pObjectEntry->pObject)
 502                                 result = S_FALSE;
 503                         else
 504                                 result = S_OK;
 505                         break;
 506                 }
 507                 else if ((Desc.dwValidData & (DMUS_OBJ_FILENAME | DMUS_OBJ_FULLPATH)) &&
 508                                 (pObjectEntry->Desc.dwValidData & (DMUS_OBJ_FILENAME | DMUS_OBJ_FULLPATH)) &&
 509                                 !strncmpW (Desc.wszFileName, pObjectEntry->Desc.wszFileName, DMUS_MAX_FILENAME)) {
 510                         TRACE(": found it by fullpath filename\n");
 511                         if ((pObjectEntry->Desc.dwValidData & DMUS_OBJ_LOADED) && pObjectEntry->pObject)
 512                                 result = S_FALSE;
 513                         else
 514                                 result = S_OK;
 515                         break;
 516                 }
 517                 else if ((Desc.dwValidData & (DMUS_OBJ_NAME | DMUS_OBJ_CATEGORY)) &&
 518                                 (pObjectEntry->Desc.dwValidData & (DMUS_OBJ_NAME | DMUS_OBJ_CATEGORY)) &&
 519                                 !strncmpW (Desc.wszName, pObjectEntry->Desc.wszName, DMUS_MAX_NAME) &&
 520                                 !strncmpW (Desc.wszCategory, pObjectEntry->Desc.wszCategory, DMUS_MAX_CATEGORY)) {
 521                         TRACE(": found it by name and category\n");
 522                         if ((pObjectEntry->Desc.dwValidData & DMUS_OBJ_LOADED) && pObjectEntry->pObject)
 523                                 result = S_FALSE;
 524                         else
 525                                 result = S_OK;
 526                         break;
 527                 }
 528                 else if ((Desc.dwValidData & DMUS_OBJ_NAME) &&
 529                                 (pObjectEntry->Desc.dwValidData & DMUS_OBJ_NAME) &&
 530                                 !strncmpW (Desc.wszName, pObjectEntry->Desc.wszName, DMUS_MAX_NAME)) {
 531                         TRACE(": found it by name\n");
 532                         if ((pObjectEntry->Desc.dwValidData & DMUS_OBJ_LOADED) && pObjectEntry->pObject)
 533                                 result = S_FALSE;
 534                         else
 535                                 result = S_OK;
 536                         break;
 537                 }
 538                 else if ((Desc.dwValidData & DMUS_OBJ_FILENAME) &&
 539                                 (pObjectEntry->Desc.dwValidData & DMUS_OBJ_FILENAME) &&
 540                                 !strncmpW (Desc.wszFileName, pObjectEntry->Desc.wszFileName, DMUS_MAX_FILENAME)) {
 541                         TRACE(": found it by filename\n");
 542                         if ((pObjectEntry->Desc.dwValidData & DMUS_OBJ_LOADED) && pObjectEntry->pObject)
 543                                 result = S_FALSE;
 544                         else
 545                                 result = S_OK;
 546                         break;
 547                 }
 548         }
 549
 550         /* if we found such alias, then set everything */
 551         if (result == S_OK) {
 552                 pObjectEntry->Desc.dwValidData &= DMUS_OBJ_LOADED;
 553                 pObjectEntry->pObject = pObject;
 554                 IDirectMusicObject_AddRef (pObjectEntry->pObject);
 555         }
 556
 557         return result;
 558 }
 559
 560 HRESULT WINAPI IDirectMusicLoaderImpl_IDirectMusicLoader_ReleaseObject (LPDIRECTMUSICLOADER8 iface, IDirectMusicObject* pObject) {
 561         DMUS_OBJECTDESC Desc;
 562         struct list *pEntry;
 563         LPWINE_LOADER_ENTRY pObjectEntry = NULL;
 564         HRESULT result = S_FALSE;
 565
 566         ICOM_THIS_MULTI(IDirectMusicLoaderImpl, LoaderVtbl, iface);
 567         TRACE("(%p, %p)\n", This, pObject);
 568
 569         /* get descriptor */
 570         DM_STRUCT_INIT(&Desc);
 571         IDirectMusicObject_GetDescriptor (pObject, &Desc);
 572
 573         /* iterate thru the list of objects we know about; check only those with DMUS_OBJ_LOADED */
 574         TRACE(": looking for the object in cache\n");
 575         LIST_FOR_EACH(pEntry, This->pObjects) {
 576                 pObjectEntry = LIST_ENTRY(pEntry, WINE_LOADER_ENTRY, entry);
 577                 if ((Desc.dwValidData & DMUS_OBJ_OBJECT) &&
 578                         (pObjectEntry->Desc.dwValidData & (DMUS_OBJ_OBJECT | DMUS_OBJ_LOADED)) &&
 579                         IsEqualGUID (&Desc.guidObject, &pObjectEntry->Desc.guidObject)) {
 580                         TRACE(": found it by object GUID\n%s", debugstr_DMUS_OBJECTDESC(&pObjectEntry->Desc));
 581                         result = S_OK;
 582                         break;
 583                 }
 584                 else if ((Desc.dwValidData & (DMUS_OBJ_FILENAME | DMUS_OBJ_FULLPATH)) &&
 585                                 (pObjectEntry->Desc.dwValidData & (DMUS_OBJ_FILENAME | DMUS_OBJ_FULLPATH | DMUS_OBJ_LOADED)) &&
 586                                 !strncmpW (Desc.wszFileName, pObjectEntry->Desc.wszFileName, DMUS_MAX_FILENAME)) {
 587                         TRACE(": found it by fullpath filename\n");
 588                         result = S_OK;
 589                         break;
 590                 }
 591                 else if ((Desc.dwValidData & (DMUS_OBJ_NAME | DMUS_OBJ_CATEGORY)) &&
 592                                 (pObjectEntry->Desc.dwValidData & (DMUS_OBJ_NAME | DMUS_OBJ_CATEGORY | DMUS_OBJ_LOADED)) &&
 593                                 !strncmpW (Desc.wszName, pObjectEntry->Desc.wszName, DMUS_MAX_NAME) &&
 594                                 !strncmpW (Desc.wszCategory, pObjectEntry->Desc.wszCategory, DMUS_MAX_CATEGORY)) {
 595                         TRACE(": found it by name and category\n");
 596                         result = S_OK;
 597                         break;
 598                 }
 599                 else if ((Desc.dwValidData & DMUS_OBJ_NAME) &&
 600                                 (pObjectEntry->Desc.dwValidData & (DMUS_OBJ_NAME | DMUS_OBJ_LOADED)) &&
 601                                 !strncmpW (Desc.wszName, pObjectEntry->Desc.wszName, DMUS_MAX_NAME)) {
 602                         TRACE(": found it by name\n");
 603                         result = S_OK;
 604                         break;
 605                 }
 606                 else if ((Desc.dwValidData & DMUS_OBJ_FILENAME) &&
 607                                 (pObjectEntry->Desc.dwValidData & (DMUS_OBJ_FILENAME | DMUS_OBJ_LOADED)) &&
 608                                 !strncmpW (Desc.wszFileName, pObjectEntry->Desc.wszFileName, DMUS_MAX_FILENAME)) {
 609                         TRACE(": found it by filename\n");
 610                         result = S_OK;
 611                         break;
 612                 }
 613         }
 614         if (result == S_OK) {
 615                 /*TRACE(": releasing: \n%s  - bInvalidDefaultDLS = %i\n  - pObject = %p\n", debugstr_DMUS_OBJECTDESC(&pObjectEntry->Desc), pObjectEntry->bInvalidDefaultDLS, pObjectEntry->pObject); */
 616                 IDirectMusicObject_Release (pObjectEntry->pObject);
 617                 pObjectEntry->pObject = NULL;
 618                 pObjectEntry->Desc.dwValidData &= ~DMUS_OBJ_LOADED;
 619         }
 620         return result;
 621 }
 622
 623 HRESULT WINAPI IDirectMusicLoaderImpl_IDirectMusicLoader_ClearCache (LPDIRECTMUSICLOADER8 iface, REFGUID rguidClass) {
 624         struct list *pEntry;
 625         LPWINE_LOADER_ENTRY pObjectEntry;
 626         ICOM_THIS_MULTI(IDirectMusicLoaderImpl, LoaderVtbl, iface);
 627         TRACE("(%p, %s)\n", This, debugstr_dmguid(rguidClass));
 628
 629         LIST_FOR_EACH (pEntry, This->pObjects) {
 630                 pObjectEntry = LIST_ENTRY (pEntry, WINE_LOADER_ENTRY, entry);
 631
 632                 if ((IsEqualGUID (rguidClass, &GUID_DirectMusicAllTypes) || IsEqualGUID (rguidClass, &pObjectEntry->Desc.guidClass)) &&
 633                         (pObjectEntry->Desc.dwValidData & DMUS_OBJ_LOADED)) {
 634                         /* basically, wrap to ReleaseObject for each object found */
 635                         IDirectMusicLoader8_ReleaseObject (iface, pObjectEntry->pObject);
 636                 }
 637         }
 638
 639         return S_OK;
 640 }
 641
 642 HRESULT WINAPI IDirectMusicLoaderImpl_IDirectMusicLoader_EnableCache (LPDIRECTMUSICLOADER8 iface, REFGUID rguidClass, BOOL fEnable) {
 643         ICOM_THIS_MULTI(IDirectMusicLoaderImpl, LoaderVtbl, iface);
 644         BOOL bCurrent;
 645         TRACE("(%p, %s, %d)\n", This, debugstr_dmguid(rguidClass), fEnable);
 646         DMUSIC_GetLoaderSettings (iface, rguidClass, NULL, &bCurrent);
 647         if (bCurrent == fEnable)
 648                 return S_FALSE;
 649         else
 650                 return DMUSIC_SetLoaderSettings (iface, rguidClass, NULL, &fEnable);
 651 }
 652
 653 HRESULT WINAPI IDirectMusicLoaderImpl_IDirectMusicLoader_EnumObject (LPDIRECTMUSICLOADER8 iface, REFGUID rguidClass, DWORD dwIndex, LPDMUS_OBJECTDESC pDesc) {
 654         DWORD dwCount = 0;
 655         struct list *pEntry;
 656         LPWINE_LOADER_ENTRY pObjectEntry;
 657         ICOM_THIS_MULTI(IDirectMusicLoaderImpl, LoaderVtbl, iface);
 658         TRACE("(%p, %s, %ld, %p)\n", This, debugstr_dmguid(rguidClass), dwIndex, pDesc);
 659
 660         DM_STRUCT_INIT(pDesc);
 661
 662         LIST_FOR_EACH (pEntry, This->pObjects) {
 663                 pObjectEntry = LIST_ENTRY (pEntry, WINE_LOADER_ENTRY, entry);
 664
 665                 if (IsEqualGUID (rguidClass, &GUID_DirectMusicAllTypes) || IsEqualGUID (rguidClass, &pObjectEntry->Desc.guidClass)) {
 666                         if (dwCount == dwIndex) {
 667                                 memcpy (pDesc, &pObjectEntry->Desc, sizeof(DMUS_OBJECTDESC));
 668                                 /* we aren't supposed to reveal this info */
 669                                 pDesc->dwValidData &= ~(DMUS_OBJ_MEMORY | DMUS_OBJ_STREAM);
 670                                 pDesc->pbMemData = NULL;
 671                                 pDesc->llMemLength = 0;
 672                                 pDesc->pStream = NULL;
 673                                 return S_OK;
 674                         }
 675                         dwCount++;
 676                 }
 677         }
 678
 679         TRACE(": not found\n");
 680         return S_FALSE;
 681 }
 682
 683 void WINAPI IDirectMusicLoaderImpl_IDirectMusicLoader_CollectGarbage (LPDIRECTMUSICLOADER8 iface) {
 684         ICOM_THIS_MULTI(IDirectMusicLoaderImpl, LoaderVtbl, iface);
 685         FIXME("(%p): stub\n", This);
 686 }
 687
 688 HRESULT WINAPI IDirectMusicLoaderImpl_IDirectMusicLoader_ReleaseObjectByUnknown (LPDIRECTMUSICLOADER8 iface, IUnknown* pObject) {
 689         ICOM_THIS_MULTI(IDirectMusicLoaderImpl, LoaderVtbl, iface);
 690         HRESULT result;
 691         LPDIRECTMUSICOBJECT pObjectInterface;
 692
 693         TRACE("(%p, %p)\n", This, pObject);
 694
 695         if (IsBadReadPtr (pObject, sizeof(LPUNKNOWN))) {
 696                 ERR(": pObject bad write pointer\n");
 697                 return E_POINTER;
 698         }
 699         /* we simply get IDirectMusicObject interface */
 700         result = IUnknown_QueryInterface (pObject, &IID_IDirectMusicObject, (LPVOID*)&pObjectInterface);
 701         if (FAILED(result)) return result;
 702         /* and release it in old-fashioned way */
 703         result = IDirectMusicLoader8_ReleaseObject (iface, pObjectInterface);
 704         IDirectMusicObject_Release (pObjectInterface);
 705
 706         return result;
 707 }
 708
 709 HRESULT WINAPI IDirectMusicLoaderImpl_IDirectMusicLoader_LoadObjectFromFile (LPDIRECTMUSICLOADER8 iface, REFGUID rguidClassID, REFIID iidInterfaceID, WCHAR* pwzFilePath, void** ppObject) {
 710         ICOM_THIS_MULTI(IDirectMusicLoaderImpl, LoaderVtbl, iface);
 711         DMUS_OBJECTDESC ObjDesc;
 712         WCHAR wszLoaderSearchPath[MAX_PATH];
 713
 714         TRACE("(%p, %s, %s, %s, %p): wrapping to IDirectMusicLoaderImpl_GetObject\n", This, debugstr_dmguid(rguidClassID), debugstr_dmguid(iidInterfaceID), debugstr_w(pwzFilePath), ppObject);
 715
 716         DM_STRUCT_INIT(&ObjDesc);
 717         ObjDesc.dwValidData = DMUS_OBJ_FILENAME | DMUS_OBJ_FULLPATH | DMUS_OBJ_CLASS; /* I believe I've read somewhere in MSDN that this function requires either full path or relative path */
 718         memcpy (&ObjDesc.guidClass, rguidClassID, sizeof(CLSID));
 719         /* OK, MSDN says that search order is the following:
 720             - current directory (DONE)
 721             - windows search path (FIXME: how do I get that?)
 722             - loader's search path (DONE)
 723         */
 724         DMUSIC_GetLoaderSettings (iface, rguidClassID, wszLoaderSearchPath, NULL);
 725     /* search in current directory */
 726         if (!SearchPathW (NULL, pwzFilePath, NULL, sizeof(ObjDesc.wszFileName)/sizeof(WCHAR), ObjDesc.wszFileName, NULL) &&
 727         /* search in loader's search path */
 728                 !SearchPathW (wszLoaderSearchPath, pwzFilePath, NULL, sizeof(ObjDesc.wszFileName)/sizeof(WCHAR), ObjDesc.wszFileName, NULL)) {
 729                 /* cannot find file */
 730                 TRACE(": cannot find file\n");
 731                 return DMUS_E_LOADER_FAILEDOPEN;
 732         }
 733
 734         TRACE(": full file path = %s\n", debugstr_w (ObjDesc.wszFileName));
 735
 736         return IDirectMusicLoaderImpl_IDirectMusicLoader_GetObject (iface, &ObjDesc, iidInterfaceID, ppObject);
 737 }
 738
 739 static const IDirectMusicLoader8Vtbl DirectMusicLoader_Loader_Vtbl = {
 740         IDirectMusicLoaderImpl_IDirectMusicLoader_QueryInterface,
 741         IDirectMusicLoaderImpl_IDirectMusicLoader_AddRef,
 742         IDirectMusicLoaderImpl_IDirectMusicLoader_Release,
 743         IDirectMusicLoaderImpl_IDirectMusicLoader_GetObject,
 744         IDirectMusicLoaderImpl_IDirectMusicLoader_SetObject,
 745         IDirectMusicLoaderImpl_IDirectMusicLoader_SetSearchDirectory,
 746         IDirectMusicLoaderImpl_IDirectMusicLoader_ScanDirectory,
 747         IDirectMusicLoaderImpl_IDirectMusicLoader_CacheObject,
 748         IDirectMusicLoaderImpl_IDirectMusicLoader_ReleaseObject,
 749         IDirectMusicLoaderImpl_IDirectMusicLoader_ClearCache,
 750         IDirectMusicLoaderImpl_IDirectMusicLoader_EnableCache,
 751         IDirectMusicLoaderImpl_IDirectMusicLoader_EnumObject,
 752         IDirectMusicLoaderImpl_IDirectMusicLoader_CollectGarbage,
 753         IDirectMusicLoaderImpl_IDirectMusicLoader_ReleaseObjectByUnknown,
 754         IDirectMusicLoaderImpl_IDirectMusicLoader_LoadObjectFromFile
 755 };
 756
 757 /* for ClassFactory */
 758 HRESULT WINAPI DMUSIC_CreateDirectMusicLoaderImpl (LPCGUID lpcGUID, LPVOID *ppobj, LPUNKNOWN pUnkOuter) {
 759         IDirectMusicLoaderImpl *obj;
 760         DMUS_OBJECTDESC Desc;
 761         LPWINE_LOADER_ENTRY pDefaultDLSEntry;
 762         struct list *pEntry;
 763
 764         TRACE("(%s, %p, %p)\n", debugstr_dmguid(lpcGUID), ppobj, pUnkOuter);
 765         obj = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(IDirectMusicLoaderImpl));
 766         if (NULL == obj) {
 767                 *ppobj = (LPDIRECTMUSICLOADER8)NULL;
 768                 return E_OUTOFMEMORY;
 769         }
 770         obj->LoaderVtbl = &DirectMusicLoader_Loader_Vtbl;
 771         obj->dwRef = 0; /* will be inited with QueryInterface */
 772         /* init critical section */
 773         /* init cache/alias list */
 774         /*InitializeCriticalSection (&obj->CritSect); */
 775         obj->pObjects = HeapAlloc (GetProcessHeap (), HEAP_ZERO_MEMORY, sizeof(struct list));
 776         list_init (obj->pObjects);
 777         /* init settings */
 778         obj->pClassSettings = HeapAlloc (GetProcessHeap (), HEAP_ZERO_MEMORY, sizeof(struct list));
 779         list_init (obj->pClassSettings);
 780         DMUSIC_InitLoaderSettings ((LPDIRECTMUSICLOADER8)obj);
 781
 782         /* set default DLS collection (via SetObject... so that loading via DMUS_OBJ_OBJECT is possible) */
 783         DM_STRUCT_INIT(&Desc);
 784         Desc.dwValidData = DMUS_OBJ_CLASS | DMUS_OBJ_FILENAME | DMUS_OBJ_FULLPATH | DMUS_OBJ_OBJECT;
 785         memcpy (&Desc.guidClass, &CLSID_DirectMusicCollection, sizeof(CLSID));
 786         memcpy (&Desc.guidObject, &GUID_DefaultGMCollection, sizeof(GUID));
 787         DMUSIC_GetDefaultGMPath (Desc.wszFileName);
 788         IDirectMusicLoader_SetObject ((LPDIRECTMUSICLOADER8)obj, &Desc);
 789         /* and now the workaroundTM for "invalid" default DLS; basically,
 790            my tests showed that if GUID chunk is present in default DLS
 791            collection, loader treats it as "invalid" and returns
 792            DMUS_E_LOADER_NOFILENAME for all requests for it; basically, we check
 793            if out input guidObject was overwritten */
 794         pEntry = list_head (obj->pObjects);
 795         pDefaultDLSEntry = LIST_ENTRY (pEntry, WINE_LOADER_ENTRY, entry);
 796         if (!IsEqualGUID(&Desc.guidObject, &GUID_DefaultGMCollection)) {
 797                 pDefaultDLSEntry->bInvalidDefaultDLS = TRUE;
 798         }
 799
 800         /* increase number of instances */
 801         InterlockedIncrement (&dwDirectMusicLoader);
 802
 803         return IDirectMusicLoaderImpl_IDirectMusicLoader_QueryInterface ((LPDIRECTMUSICLOADER8)obj, lpcGUID, ppobj);
 804 }
 805
 806 HRESULT WINAPI DMUSIC_DestroyDirectMusicLoaderImpl (LPDIRECTMUSICLOADER8 iface) {
 807         ICOM_THIS_MULTI(IDirectMusicLoaderImpl, LoaderVtbl, iface);
 808
 809         TRACE("(%p)\n", This);
 810
 811         /* firstly, release the cache */
 812         IDirectMusicLoader8_ClearCache (iface, &GUID_DirectMusicAllTypes);
 813         /* FIXME: release all allocated entries */
 814         /* destroy critical section */
 815         /*DeleteCriticalSection (&This->CritSect); */
 816
 817         /* decrease number of instances */
 818         InterlockedDecrement (&dwDirectMusicLoader);
 819
 820         return S_OK;
 821 }
 822
 823 /* help function for DMUSIC_SetDefaultDLS */
 824 HRESULT WINAPI DMUSIC_GetDefaultGMPath (WCHAR wszPath[MAX_PATH]) {
 825         HKEY hkDM;
 826         DWORD returnType, sizeOfReturnBuffer = MAX_PATH;
 827         char szPath[MAX_PATH];
 828
 829         if ((RegOpenKeyExA (HKEY_LOCAL_MACHINE, "Software\\Microsoft\\DirectMusic" , 0, KEY_READ, &hkDM) != ERROR_SUCCESS) ||
 830             (RegQueryValueExA (hkDM, "GMFilePath", NULL, &returnType, (LPBYTE) szPath, &sizeOfReturnBuffer) != ERROR_SUCCESS)) {
 831                 WARN(": registry entry missing\n" );
 832                 return E_FAIL;
 833         }
 834         /* FIXME: Check return types to ensure we're interpreting data right */
 835         MultiByteToWideChar (CP_ACP, 0, szPath, -1, wszPath, MAX_PATH);
 836
 837         return S_OK;
 838 }
 839
 840 /* help function for retrieval of search path and caching option for certain class */
 841 HRESULT WINAPI DMUSIC_GetLoaderSettings (LPDIRECTMUSICLOADER8 iface, REFGUID pClassID, WCHAR* wszSearchPath, LPBOOL pbCache) {
 842         ICOM_THIS_MULTI(IDirectMusicLoaderImpl, LoaderVtbl, iface);
 843         struct list *pEntry;
 844         TRACE(": (%p, %s, %p, %p)\n", This, debugstr_dmguid(pClassID), wszSearchPath, pbCache);
 845
 846         LIST_FOR_EACH(pEntry, This->pClassSettings) {
 847                 LPWINE_LOADER_OPTION pOptionEntry = LIST_ENTRY(pEntry, WINE_LOADER_OPTION, entry);
 848                 if (IsEqualCLSID (pClassID, &pOptionEntry->guidClass)) {
 849                         if (wszSearchPath)
 850                                 strcpyW(wszSearchPath, pOptionEntry->wszSearchPath);
 851                         if (pbCache)
 852                                 *pbCache = pOptionEntry->bCache;
 853                         return S_OK;
 854                 }
 855         }
 856         return S_FALSE;
 857 }
 858
 859 /* help function for setting search path and caching option for certain class */
 860 HRESULT WINAPI DMUSIC_SetLoaderSettings (LPDIRECTMUSICLOADER8 iface, REFGUID pClassID, WCHAR* wszSearchPath, LPBOOL pbCache) {
 861         ICOM_THIS_MULTI(IDirectMusicLoaderImpl, LoaderVtbl, iface);
 862         struct list *pEntry;
 863         HRESULT result = S_FALSE; /* in case pClassID != GUID_DirectMusicAllTypes and not a valid CLSID */
 864         TRACE(": (%p, %s, %p, %p)\n", This, debugstr_dmguid(pClassID), wszSearchPath, pbCache);
 865
 866         LIST_FOR_EACH(pEntry, This->pClassSettings) {
 867                 LPWINE_LOADER_OPTION pOptionEntry = LIST_ENTRY(pEntry, WINE_LOADER_OPTION, entry);
 868                 /* well, either we have GUID_DirectMusicAllTypes and need to set it to all,
 869                    or specific CLSID is given and we set it only to it */
 870                 if (IsEqualGUID (pClassID, &GUID_DirectMusicAllTypes) ||
 871                         IsEqualCLSID (pClassID, &pOptionEntry->guidClass)) {
 872                         if (wszSearchPath)
 873                                 strcpyW(pOptionEntry->wszSearchPath, wszSearchPath);
 874                         if (pbCache)
 875                                 pOptionEntry->bCache = *pbCache;
 876                         result = S_OK;
 877                 }
 878         }
 879
 880         return result;
 881 }
 882
 883 HRESULT WINAPI DMUSIC_InitLoaderSettings (LPDIRECTMUSICLOADER8 iface) {
 884         ICOM_THIS_MULTI(IDirectMusicLoaderImpl, LoaderVtbl, iface);
 885
 886         /* hard-coded list of classes */
 887         static REFCLSID classes[] = {
 888                 &CLSID_DirectMusicAudioPathConfig,
 889                 &CLSID_DirectMusicBand,
 890                 &CLSID_DirectMusicContainer,
 891                 &CLSID_DirectMusicCollection,
 892                 &CLSID_DirectMusicChordMap,
 893                 &CLSID_DirectMusicSegment,
 894                 &CLSID_DirectMusicScript,
 895                 &CLSID_DirectMusicSong,
 896                 &CLSID_DirectMusicStyle,
 897                 &CLSID_DirectMusicGraph,
 898                 &CLSID_DirectSoundWave
 899         };
 900
 901         unsigned int i;
 902         WCHAR wszCurrent[MAX_PATH];
 903
 904         TRACE(": (%p)\n", This);
 905         GetCurrentDirectoryW (MAX_PATH, wszCurrent);
 906
 907         for (i = 0; i < sizeof(classes)/sizeof(REFCLSID); i++) {
 908                 LPWINE_LOADER_OPTION pNewSetting = HeapAlloc (GetProcessHeap (), HEAP_ZERO_MEMORY, sizeof(WINE_LOADER_OPTION));
 909                 memcpy (&pNewSetting->guidClass, classes[i], sizeof(CLSID));
 910                 strcpyW (pNewSetting->wszSearchPath, wszCurrent);
 911                 pNewSetting->bCache = TRUE;
 912                 list_add_tail (This->pClassSettings, &pNewSetting->entry);
 913         }
 914
 915         return S_OK;
 916 }
 917
 918 HRESULT WINAPI DMUSIC_CopyDescriptor (LPDMUS_OBJECTDESC pDst, LPDMUS_OBJECTDESC pSrc) {
 919         TRACE(": copy \n%s", debugstr_DMUS_OBJECTDESC(pSrc));
 920         /* copy field by field */
 921         if (pSrc->dwValidData & DMUS_OBJ_CLASS) memcpy (&pDst->guidClass, &pSrc->guidClass, sizeof(CLSID));
 922         if (pSrc->dwValidData & DMUS_OBJ_OBJECT) memcpy (&pDst->guidObject, &pSrc->guidObject, sizeof(GUID));
 923         if (pSrc->dwValidData & DMUS_OBJ_DATE) memcpy (&pDst->ftDate, &pSrc->ftDate, sizeof(FILETIME));
 924         if (pSrc->dwValidData & DMUS_OBJ_VERSION) memcpy (&pDst->vVersion, &pSrc->vVersion, sizeof(DMUS_VERSION));
 925         if (pSrc->dwValidData & DMUS_OBJ_NAME) strcpyW (pDst->wszName, pSrc->wszName);
 926         if (pSrc->dwValidData & DMUS_OBJ_CATEGORY) strcpyW (pDst->wszCategory, pSrc->wszCategory);
 927         if (pSrc->dwValidData & DMUS_OBJ_FILENAME) strcpyW (pDst->wszFileName, pSrc->wszFileName);
 928         if (pSrc->dwValidData & DMUS_OBJ_STREAM) IStream_Clone (pSrc->pStream, &pDst->pStream);
 929         if (pSrc->dwValidData & DMUS_OBJ_MEMORY) {
 930                 pDst->pbMemData = pSrc->pbMemData;
 931                 pDst->llMemLength = pSrc->llMemLength;
 932         }
 933         /* set flags */
 934         pDst->dwValidData |= pSrc->dwValidData;
 935         return S_OK;
 936 }
 937
 938 BOOL WINAPI DMUSIC_IsValidLoadableClass (REFCLSID pClassID) {
 939         if (IsEqualCLSID(pClassID, &CLSID_DirectMusicAudioPathConfig) ||
 940                 IsEqualCLSID(pClassID, &CLSID_DirectMusicBand) ||
 941                 IsEqualCLSID(pClassID, &CLSID_DirectMusicContainer) ||
 942                 IsEqualCLSID(pClassID, &CLSID_DirectMusicCollection) ||
 943                 IsEqualCLSID(pClassID, &CLSID_DirectMusicChordMap) ||
 944                 IsEqualCLSID(pClassID, &CLSID_DirectMusicSegment) ||
 945                 IsEqualCLSID(pClassID, &CLSID_DirectMusicScript) ||
 946                 IsEqualCLSID(pClassID, &CLSID_DirectMusicSong) ||
 947                 IsEqualCLSID(pClassID, &CLSID_DirectMusicStyle) ||
 948                 IsEqualCLSID(pClassID, &CLSID_DirectMusicGraph) ||
 949                 IsEqualCLSID(pClassID, &CLSID_DirectSoundWave) ||
 950                 IsEqualCLSID(pClassID, &GUID_DirectMusicAllTypes))
 951                 return TRUE;
 952         else
 953                 return FALSE;
 954 }