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
   6  * modify it under the terms of the GNU Lesser General Public
   7  * License as published by the Free Software Foundation; either
   8  * version 2.1 of the License, or (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 GNU
  13  * Lesser General Public License for more details.
  14  *
  15  * You should have received a copy of the GNU Lesser General Public
  16  * License along with this program; if not, write to the Free Software
  17  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
  18  */
  19
  20 #include "dmloader_private.h"
  21
  22 WINE_DEFAULT_DEBUG_CHANNEL(dmloader);
  23
  24 static HRESULT WINAPI DMUSIC_SetLoaderSettings (LPDIRECTMUSICLOADER8 iface, REFGUID pClassID, WCHAR* wszSearchPath, LPBOOL pbCache);
  25
  26 /*****************************************************************************
  27  * IDirectMusicLoaderImpl implementation
  28  */
  29 /* IUnknown/IDirectMusicLoader(8) part: */
  30 static ULONG WINAPI IDirectMusicLoaderImpl_IDirectMusicLoader_AddRef (LPDIRECTMUSICLOADER8 iface);
  31
  32 static HRESULT WINAPI IDirectMusicLoaderImpl_IDirectMusicLoader_QueryInterface (LPDIRECTMUSICLOADER8 iface, REFIID riid, LPVOID *ppobj) {
  33         ICOM_THIS_MULTI(IDirectMusicLoaderImpl, LoaderVtbl, iface);
  34
  35         TRACE("(%p, %s, %p)\n",This, debugstr_dmguid(riid), ppobj);
  36         if (IsEqualIID (riid, &IID_IUnknown) ||
  37             IsEqualIID (riid, &IID_IDirectMusicLoader) ||
  38             IsEqualIID (riid, &IID_IDirectMusicLoader8)) {
  39                 IDirectMusicLoaderImpl_IDirectMusicLoader_AddRef (iface);
  40                 *ppobj = This;
  41                 return S_OK;
  42         }
  43
  44         WARN(": not found\n");
  45         return E_NOINTERFACE;
  46 }
  47
  48 static ULONG WINAPI IDirectMusicLoaderImpl_IDirectMusicLoader_AddRef (LPDIRECTMUSICLOADER8 iface) {
  49         ICOM_THIS_MULTI(IDirectMusicLoaderImpl, LoaderVtbl, iface);
  50         TRACE("(%p): AddRef from %d\n", This, This->dwRef);
  51         return InterlockedIncrement (&This->dwRef);
  52 }
  53
  54 static ULONG WINAPI IDirectMusicLoaderImpl_IDirectMusicLoader_Release (LPDIRECTMUSICLOADER8 iface) {
  55         ICOM_THIS_MULTI(IDirectMusicLoaderImpl, LoaderVtbl, iface);
  56
  57         DWORD dwRef = InterlockedDecrement (&This->dwRef);
  58         TRACE("(%p): ReleaseRef to %d\n", This, This->dwRef);
  59         if (dwRef == 0) {
  60                 DMUSIC_DestroyDirectMusicLoaderImpl (iface);
  61                 HeapFree (GetProcessHeap(), 0, This);
  62         }
  63
  64         return dwRef;
  65 }
  66
  67 static HRESULT WINAPI IDirectMusicLoaderImpl_IDirectMusicLoader_GetObject (LPDIRECTMUSICLOADER8 iface, LPDMUS_OBJECTDESC pDesc, REFIID riid, LPVOID* ppv) {
  68         ICOM_THIS_MULTI(IDirectMusicLoaderImpl, LoaderVtbl, iface);
  69         HRESULT result = S_OK;
  70         HRESULT ret = S_OK; /* used at the end of function, to determine whether everything went OK */
  71
  72         struct list *pEntry;
  73         LPWINE_LOADER_ENTRY pObjectEntry = NULL;
  74         LPSTREAM pStream;
  75         IPersistStream* pPersistStream = NULL;
  76
  77         LPDIRECTMUSICOBJECT pObject;
  78         DMUS_OBJECTDESC GotDesc;
  79         BOOL bCache;
  80
  81         TRACE("(%p, %p, %s, %p): pDesc:\n%s\n", This, pDesc, debugstr_dmguid(riid), ppv, debugstr_DMUS_OBJECTDESC(pDesc));
  82
  83         /* sometimes it happens that guidClass is missing... which is a BadThingTM */
  84         if (!(pDesc->dwValidData & DMUS_OBJ_CLASS)) {
  85           ERR(": guidClass not valid but needed\n");
  86           *ppv = NULL;
  87           return DMUS_E_LOADER_NOCLASSID;
  88         }
  89
  90         /* OK, first we iterate thru the list of objects we know about; these are either loaded (GetObject, LoadObjectFromFile)
  91            or set via SetObject; */
  92         TRACE(": looking if we have object in the cache or if it can be found via alias\n");
  93         LIST_FOR_EACH(pEntry, This->pObjects) {
  94                 LPWINE_LOADER_ENTRY pExistingEntry = LIST_ENTRY(pEntry, WINE_LOADER_ENTRY, entry);
  95                 if ((pDesc->dwValidData & DMUS_OBJ_OBJECT) &&
  96                         (pExistingEntry->Desc.dwValidData & DMUS_OBJ_OBJECT) &&
  97                         IsEqualGUID (&pDesc->guidObject, &pExistingEntry->Desc.guidObject)) {
  98                         TRACE(": found it by object GUID\n");
  99                         /* I suppose such stuff can happen only when GUID for object is given (GUID_DefaultGMCollection) */
 100                         if (pExistingEntry->bInvalidDefaultDLS) {
 101                                 TRACE(": found faulty default DLS collection... enabling M$ compliant behaviour\n");
 102                                 return DMUS_E_LOADER_NOFILENAME;
 103                         }
 104                         if (pExistingEntry->Desc.dwValidData & DMUS_OBJ_LOADED) {
 105                                 TRACE(": already loaded\n");
 106                                 return IDirectMusicObject_QueryInterface (pExistingEntry->pObject, riid, ppv);
 107                         } else {
 108                                 TRACE(": not loaded yet\n");
 109                                 pObjectEntry = pExistingEntry;
 110                         }
 111                 }
 112                 else if ((pDesc->dwValidData & (DMUS_OBJ_FILENAME | DMUS_OBJ_FULLPATH)) &&
 113                                 (pExistingEntry->Desc.dwValidData & (DMUS_OBJ_FILENAME | DMUS_OBJ_FULLPATH)) &&
 114                                 !strncmpW (pDesc->wszFileName, pExistingEntry->Desc.wszFileName, DMUS_MAX_FILENAME)) {
 115                         TRACE(": found it by fullpath filename\n");
 116                         if (pExistingEntry->Desc.dwValidData & DMUS_OBJ_LOADED) {
 117                                 TRACE(": already loaded\n");
 118                                 return IDirectMusicObject_QueryInterface (pExistingEntry->pObject, riid, ppv);
 119                         } else {
 120                                 TRACE(": not loaded yet\n");
 121                                 pObjectEntry = pExistingEntry;
 122                         }
 123                 }
 124                 else if ((pDesc->dwValidData & (DMUS_OBJ_NAME | DMUS_OBJ_CATEGORY)) &&
 125                                 (pExistingEntry->Desc.dwValidData & (DMUS_OBJ_NAME | DMUS_OBJ_CATEGORY)) &&
 126                                 !strncmpW (pDesc->wszName, pExistingEntry->Desc.wszName, DMUS_MAX_NAME) &&
 127                                 !strncmpW (pDesc->wszCategory, pExistingEntry->Desc.wszCategory, DMUS_MAX_CATEGORY)) {
 128                         TRACE(": found it by name and category\n");
 129                         if (pExistingEntry->Desc.dwValidData & DMUS_OBJ_LOADED) {
 130                                 TRACE(": already loaded\n");
 131                                 return IDirectMusicObject_QueryInterface (pExistingEntry->pObject, riid, ppv);
 132                         } else {
 133                                 TRACE(": not loaded yet\n");
 134                                 pObjectEntry = pExistingEntry;
 135                         }
 136                 }
 137                 else if ((pDesc->dwValidData & DMUS_OBJ_NAME) &&
 138                                 (pExistingEntry->Desc.dwValidData & DMUS_OBJ_NAME) &&
 139                                 !strncmpW (pDesc->wszName, pExistingEntry->Desc.wszName, DMUS_MAX_NAME)) {
 140                         TRACE(": found it by name\n");
 141                         if (pExistingEntry->Desc.dwValidData & DMUS_OBJ_LOADED) {
 142                                 TRACE(": already loaded\n");
 143                                 return IDirectMusicObject_QueryInterface (pExistingEntry->pObject, riid, ppv);
 144                         } else {
 145                                 TRACE(": not loaded yet\n");
 146                                 pObjectEntry = pExistingEntry;
 147                         }
 148                 }
 149                 else if ((pDesc->dwValidData & DMUS_OBJ_FILENAME) &&
 150                                 (pExistingEntry->Desc.dwValidData & DMUS_OBJ_FILENAME) &&
 151                                 !strncmpW (pDesc->wszFileName, pExistingEntry->Desc.wszFileName, DMUS_MAX_FILENAME)) {
 152                         TRACE(": found it by filename\n");
 153                         if (pExistingEntry->Desc.dwValidData & DMUS_OBJ_LOADED) {
 154                                 TRACE(": already loaded\n");
 155                                 return IDirectMusicObject_QueryInterface (pExistingEntry->pObject, riid, ppv);
 156                         } else {
 157                                 TRACE(": not loaded yet\n");
 158                                 pObjectEntry = pExistingEntry;
 159                         }
 160                 }
 161         }
 162
 163         /* basically, if we found alias, we use its descriptor to load...
 164            else we use info we were given */
 165         if (pObjectEntry) {
 166                 TRACE(": found alias entry for requested object... using stored info\n");
 167                 /* I think in certain cases it can happen that entry's descriptor lacks info
 168                    where to load from (e.g.: if we loaded from stream and then released object
 169                    from cache; then only it's CLSID, GUID and perhaps name are left); so just
 170                    overwrite info entry has (since it ought to be 100% correct) */
 171                 DMUSIC_CopyDescriptor (pDesc, &pObjectEntry->Desc);
 172                 /*pDesc = &pObjectEntry->Desc; */ /* FIXME: is this OK? */
 173         } else {
 174                 TRACE(": no cache/alias entry found for requested object\n");
 175         }
 176
 177         if (pDesc->dwValidData & DMUS_OBJ_URL) {
 178                 TRACE(": loading from URLs not supported yet\n");
 179                 return DMUS_E_LOADER_FORMATNOTSUPPORTED;
 180         }
 181         else if (pDesc->dwValidData & DMUS_OBJ_FILENAME) {
 182                 /* load object from file */
 183                 /* generate filename; if it's full path, don't add search
 184                    directory path, otherwise do */
 185                 WCHAR wszFileName[MAX_PATH];
 186
 187                 if (pDesc->dwValidData & DMUS_OBJ_FULLPATH) {
 188                         lstrcpyW(wszFileName, pDesc->wszFileName);
 189                 } else {
 190                         WCHAR *p, wszSearchPath[MAX_PATH];
 191                         DMUSIC_GetLoaderSettings (iface, &pDesc->guidClass, wszSearchPath, NULL);
 192                         lstrcpyW(wszFileName, wszSearchPath);
 193                         p = wszFileName + lstrlenW(wszFileName);
 194                         if (p > wszFileName && p[-1] != '\\') *p++ = '\\';
 195                         strcpyW(p, pDesc->wszFileName);
 196                 }
 197                 TRACE(": loading from file (%s)\n", debugstr_w(wszFileName));
 198                 /* create stream and associate it with file */
 199                 result = DMUSIC_CreateDirectMusicLoaderFileStream ((LPVOID*)&pStream);
 200                 if (FAILED(result)) {
 201                         ERR(": could not create file stream\n");
 202                         return result;
 203                 }
 204                 result = IDirectMusicLoaderFileStream_Attach (pStream, wszFileName, iface);
 205                 if (FAILED(result)) {
 206                         ERR(": could not attach stream to file\n");
 207                         IStream_Release (pStream);
 208                         return result;
 209                 }
 210         }
 211         else if (pDesc->dwValidData & DMUS_OBJ_MEMORY) {
 212                 /* load object from resource */
 213                 TRACE(": loading from resource\n");
 214                 /* create stream and associate it with given resource */
 215                 result = DMUSIC_CreateDirectMusicLoaderResourceStream ((LPVOID*)&pStream);
 216                 if (FAILED(result)) {
 217                         ERR(": could not create resource stream\n");
 218                         return result;
 219                 }
 220                 result = IDirectMusicLoaderResourceStream_Attach (pStream, pDesc->pbMemData, pDesc->llMemLength, 0, iface);
 221                 if (FAILED(result)) {
 222                         ERR(": could not attach stream to resource\n");
 223                         IStream_Release (pStream);
 224                         return result;
 225                 }
 226         }
 227         else if (pDesc->dwValidData & DMUS_OBJ_STREAM) {
 228                 /* load object from stream */
 229                 TRACE(": loading from stream\n");
 230                 /* create universal stream and associate it with given one */
 231                 result = DMUSIC_CreateDirectMusicLoaderGenericStream ((LPVOID*)&pStream);
 232                 if (FAILED(result)) {
 233                         ERR(": could not create generic stream\n");
 234                         return result;
 235                 }
 236                 result = IDirectMusicLoaderGenericStream_Attach (pStream, pDesc->pStream, iface);
 237                 if (FAILED(result)) {
 238                         ERR(": failed to attach stream\n");
 239                         IStream_Release (pStream);
 240                         return result;
 241                 }
 242         } else {
 243                 /* nowhere to load from */
 244                 FIXME(": unknown/unsupported way of loading\n");
 245                 return DMUS_E_LOADER_NOFILENAME; /* test shows this is returned */
 246         }
 247
 248         /* create object */
 249         result = CoCreateInstance (&pDesc->guidClass, NULL, CLSCTX_INPROC_SERVER, &IID_IDirectMusicObject, (LPVOID*)&pObject);
 250         if (FAILED(result)) {
 251                 ERR(": could not create object\n");
 252                 return result;
 253         }
 254         /* acquire PersistStream interface */
 255         result = IDirectMusicObject_QueryInterface (pObject, &IID_IPersistStream, (LPVOID*)&pPersistStream);
 256         if (FAILED(result)) {
 257                 ERR("failed to Query\n");
 258                 return result;
 259         }
 260         /* load */
 261         result = IPersistStream_Load (pPersistStream, pStream);
 262         if (result != S_OK) {
 263                 WARN(": failed to (completely) load object (%s)\n", debugstr_dmreturn(result));
 264                 ret = DMUS_S_PARTIALLOAD /*result*/;
 265         }
 266         /* get descriptor */
 267         DM_STRUCT_INIT(&GotDesc);
 268         result = IDirectMusicObject_GetDescriptor (pObject, &GotDesc);
 269         /* set filename (if we loaded via filename) */
 270         if (pDesc->dwValidData & DMUS_OBJ_FILENAME) {
 271                 GotDesc.dwValidData |= (pDesc->dwValidData & (DMUS_OBJ_FILENAME | DMUS_OBJ_FULLPATH));
 272                 strcpyW (GotDesc.wszFileName, pDesc->wszFileName);
 273         }
 274         if (FAILED(result)) {
 275                 ERR(": failed to get descriptor\n");
 276                 return result;
 277         }
 278         /* release all loading related stuff */
 279         IStream_Release (pStream);
 280         IPersistStream_Release (pPersistStream);
 281
 282         /* add object to cache/overwrite existing info (if cache is enabled) */
 283         DMUSIC_GetLoaderSettings (iface, &pDesc->guidClass, NULL, &bCache);
 284         if (bCache) {
 285                 if (!pObjectEntry) {
 286                         pObjectEntry = HeapAlloc (GetProcessHeap (), HEAP_ZERO_MEMORY, sizeof(WINE_LOADER_ENTRY));
 287                         DM_STRUCT_INIT(&pObjectEntry->Desc);
 288                         if (pObject) {
 289                                 DMUSIC_CopyDescriptor (&pObjectEntry->Desc, &GotDesc);
 290                                 pObjectEntry->pObject = pObject;
 291                                 pObjectEntry->bInvalidDefaultDLS = FALSE;
 292                         }
 293                         list_add_head (This->pObjects, &pObjectEntry->entry);
 294                 } else {
 295                         if (pObject) {
 296                                 DMUSIC_CopyDescriptor (&pObjectEntry->Desc, &GotDesc);
 297                                 pObjectEntry->pObject = pObject;
 298                                 pObjectEntry->bInvalidDefaultDLS = FALSE;
 299                         }
 300                 }
 301                 TRACE(": filled in cache entry\n");
 302         } else TRACE(": caching disabled\n");
 303
 304 #if 0
 305         /* for debug purposes (e.g. to check if all files are cached) */
 306         TRACE("*** Loader's cache ***\n");
 307         int i = 0;
 308         LIST_FOR_EACH (pEntry, This->pObjects) {
 309                 i++;
 310                 pObjectEntry = LIST_ENTRY(pEntry, WINE_LOADER_ENTRY, entry);
 311                 TRACE(": entry nr. %i:\n%s\n  - bInvalidDefaultDLS = %i\n  - pObject = %p\n", i, debugstr_DMUS_OBJECTDESC(&pObjectEntry->Desc), pObjectEntry->bInvalidDefaultDLS, pObjectEntry->pObject);
 312         }
 313 #endif
 314
 315         result = IDirectMusicObject_QueryInterface (pObject, riid, ppv);
 316         if (!bCache) IDirectMusicObject_Release (pObject); /* since loader's reference is not needed */
 317         /* if there was trouble with loading, and if no other error occurred,
 318            we should return DMUS_S_PARTIALLOAD; else, error is returned */
 319         if (result == S_OK)
 320                 return ret;
 321         else
 322                 return result;
 323 }
 324
 325 static HRESULT WINAPI IDirectMusicLoaderImpl_IDirectMusicLoader_SetObject (LPDIRECTMUSICLOADER8 iface, LPDMUS_OBJECTDESC pDesc) {
 326         ICOM_THIS_MULTI(IDirectMusicLoaderImpl, LoaderVtbl, iface);
 327         LPSTREAM pStream;
 328         LPDIRECTMUSICOBJECT pObject;
 329         DMUS_OBJECTDESC Desc;
 330         struct list *pEntry;
 331         LPWINE_LOADER_ENTRY pObjectEntry, pNewEntry;
 332         HRESULT hr;
 333
 334         TRACE("(%p, %p): pDesc:\n%s\n", This, pDesc, debugstr_DMUS_OBJECTDESC(pDesc));
 335
 336         /* create stream and load additional info from it */
 337         if (pDesc->dwValidData & DMUS_OBJ_FILENAME) {
 338                 /* generate filename; if it's full path, don't add search
 339                    directory path, otherwise do */
 340                 WCHAR wszFileName[MAX_PATH];
 341
 342                 if (pDesc->dwValidData & DMUS_OBJ_FULLPATH) {
 343                         lstrcpyW(wszFileName, pDesc->wszFileName);
 344                 } else {
 345                         WCHAR *p;
 346                         WCHAR wszSearchPath[MAX_PATH];
 347                         DMUSIC_GetLoaderSettings (iface, &pDesc->guidClass, wszSearchPath, NULL);
 348                         lstrcpyW(wszFileName, wszSearchPath);
 349                         p = wszFileName + lstrlenW(wszFileName);
 350                         if (p > wszFileName && p[-1] != '\\') *p++ = '\\';
 351                         strcpyW(p, pDesc->wszFileName);
 352                 }
 353                 /* create stream */
 354                 hr = DMUSIC_CreateDirectMusicLoaderFileStream ((LPVOID*)&pStream);
 355                 if (FAILED(hr)) {
 356                         ERR(": could not create file stream\n");
 357                         return DMUS_E_LOADER_FAILEDOPEN;
 358                 }
 359                 /* attach stream */
 360                 hr = IDirectMusicLoaderFileStream_Attach (pStream, wszFileName, iface);
 361                 if (FAILED(hr)) {
 362                         ERR(": could not attach stream to file\n");
 363                         IStream_Release (pStream);
 364                         return DMUS_E_LOADER_FAILEDOPEN;
 365                 }
 366         }
 367         else if (pDesc->dwValidData & DMUS_OBJ_STREAM) {
 368                 /* create stream */
 369                 hr = DMUSIC_CreateDirectMusicLoaderGenericStream ((LPVOID*)&pStream);
 370                 if (FAILED(hr)) {
 371                         ERR(": could not create generic stream\n");
 372                         return DMUS_E_LOADER_FAILEDOPEN;
 373                 }
 374                 /* attach stream */
 375                 hr = IDirectMusicLoaderGenericStream_Attach (pStream, pDesc->pStream, iface);
 376                 if (FAILED(hr)) {
 377                         ERR(": could not attach stream\n");
 378                         IStream_Release (pStream);
 379                         return DMUS_E_LOADER_FAILEDOPEN;
 380                 }
 381         }
 382         else if (pDesc->dwValidData & DMUS_OBJ_MEMORY) {
 383                 /* create stream */
 384                 hr = DMUSIC_CreateDirectMusicLoaderResourceStream ((LPVOID*)&pStream);
 385                 if (FAILED(hr)) {
 386                         ERR(": could not create resource stream\n");
 387                         return DMUS_E_LOADER_FAILEDOPEN;
 388                 }
 389                 /* attach stream */
 390                 hr = IDirectMusicLoaderResourceStream_Attach (pStream, pDesc->pbMemData, pDesc->llMemLength, 0, iface);
 391                 if (FAILED(hr)) {
 392                         ERR(": could not attach stream to resource\n");
 393                         IStream_Release (pStream);
 394                         return DMUS_E_LOADER_FAILEDOPEN;
 395                 }
 396         }
 397         else {
 398                 ERR(": no way to get additional info\n");
 399                 return DMUS_E_LOADER_FAILEDOPEN;
 400         }
 401
 402         /* create object */
 403         CoCreateInstance (&pDesc->guidClass, NULL, CLSCTX_INPROC_SERVER, &IID_IDirectMusicObject, (LPVOID*)&pObject);
 404
 405         /* *sigh*... some ms objects have lousy implementation of ParseDescriptor that clears input descriptor :( */
 406 #ifdef NOW_WE_ARE_FREE
 407         /* parse descriptor: we actually use input descriptor; fields that aren't available from stream remain,
 408            otherwise real info is set */
 409          IDirectMusicObject_ParseDescriptor (pObject, pStream, pDesc);
 410 #endif
 411         /* hmph... due to some trouble I had with certain tests, we store current position and then set it back */
 412         DM_STRUCT_INIT(&Desc);
 413         if (FAILED(IDirectMusicObject_ParseDescriptor (pObject, pStream, &Desc))) {
 414                 ERR(": couldn't parse descriptor\n");
 415                 return DMUS_E_LOADER_FORMATNOTSUPPORTED;
 416         }
 417
 418         /* copy elements from parsed descriptor into input descriptor; this sets new info, overwriting if necessary,
 419            but leaves info that's provided by input and not available from stream */
 420         DMUSIC_CopyDescriptor (pDesc, &Desc);
 421
 422         /* release everything */
 423         IDirectMusicObject_Release (pObject);
 424         IStream_Release (pStream);
 425
 426         /* sometimes it happens that twisted programs call SetObject for same object twice...
 427            in such cases, native loader returns S_OK and does nothing... a sound plan */
 428         LIST_FOR_EACH (pEntry, This->pObjects) {
 429                 pObjectEntry = LIST_ENTRY (pEntry, WINE_LOADER_ENTRY, entry);
 430                 if (!memcmp (&pObjectEntry->Desc, pDesc, sizeof(DMUS_OBJECTDESC))) {
 431                         TRACE(": exacly same entry already exists\n");
 432                         return S_OK;
 433                 }
 434         }
 435
 436         /* add new entry */
 437         TRACE(": adding alias entry with following info: \n%s\n", debugstr_DMUS_OBJECTDESC(pDesc));
 438         pNewEntry = HeapAlloc (GetProcessHeap (), HEAP_ZERO_MEMORY, sizeof(WINE_LOADER_ENTRY));
 439         /* use this function instead of pure memcpy due to streams (memcpy just copies pointer),
 440            which is basically used further by app that called SetDescriptor... better safety than exception */
 441         DMUSIC_CopyDescriptor (&pNewEntry->Desc, pDesc);
 442         list_add_head (This->pObjects, &pNewEntry->entry);
 443
 444         return S_OK;
 445 }
 446
 447 static HRESULT WINAPI IDirectMusicLoaderImpl_IDirectMusicLoader_SetSearchDirectory (LPDIRECTMUSICLOADER8 iface, REFGUID rguidClass, WCHAR* pwzPath, BOOL fClear) {
 448         WCHAR wszCurrentPath[MAX_PATH];
 449         ICOM_THIS_MULTI(IDirectMusicLoaderImpl, LoaderVtbl, iface);
 450         TRACE("(%p, %s, %s, %d)\n", This, debugstr_dmguid(rguidClass), debugstr_w(pwzPath), fClear);
 451         FIXME(": fClear ignored\n");
 452         DMUSIC_GetLoaderSettings (iface, rguidClass, wszCurrentPath, NULL);
 453         if (!strncmpW(wszCurrentPath, pwzPath, MAX_PATH)) {
 454           return S_FALSE;
 455         }
 456         /* FIXME: check if path is valid; else return DMUS_E_LOADER_BADPATH */
 457         return DMUSIC_SetLoaderSettings (iface, rguidClass, pwzPath, NULL);
 458 }
 459
 460 static HRESULT WINAPI IDirectMusicLoaderImpl_IDirectMusicLoader_ScanDirectory (LPDIRECTMUSICLOADER8 iface, REFGUID rguidClass, WCHAR* pwzFileExtension, WCHAR* pwzScanFileName) {
 461         static const WCHAR wszAny[] = {'*',0};
 462         WIN32_FIND_DATAW FileData;
 463         HANDLE hSearch;
 464         WCHAR wszSearchString[MAX_PATH];
 465         WCHAR *p;
 466         HRESULT result;
 467         ICOM_THIS_MULTI(IDirectMusicLoaderImpl, LoaderVtbl, iface);
 468         TRACE("(%p, %s, %p, %p)\n", This, debugstr_dmguid(rguidClass), pwzFileExtension, pwzScanFileName);
 469         if (IsEqualGUID (rguidClass, &GUID_DirectMusicAllTypes) || !DMUSIC_IsValidLoadableClass(rguidClass)) {
 470                 ERR(": rguidClass invalid CLSID\n");
 471                 return REGDB_E_CLASSNOTREG;
 472         }
 473
 474         /* get search path for given class */
 475         DMUSIC_GetLoaderSettings (iface, rguidClass, wszSearchString, NULL);
 476
 477         p = wszSearchString + lstrlenW(wszSearchString);
 478         if (p > wszSearchString && p[-1] != '\\') *p++ = '\\';
 479         *p++ = '*'; /* any file */
 480         if (strcmpW (pwzFileExtension, wszAny)) *p++ = '.'; /* if we have actual extension, put a dot */
 481         strcpyW (p, pwzFileExtension);
 482
 483         TRACE(": search string: %s\n", debugstr_w(wszSearchString));
 484
 485         hSearch = FindFirstFileW (wszSearchString, &FileData);
 486         if (hSearch == INVALID_HANDLE_VALUE) {
 487                 TRACE(": no files found\n");
 488                 return S_FALSE;
 489         }
 490
 491         do {
 492                 DMUS_OBJECTDESC Desc;
 493                 DM_STRUCT_INIT(&Desc);
 494                 Desc.dwValidData = DMUS_OBJ_CLASS | DMUS_OBJ_FILENAME | DMUS_OBJ_FULLPATH | DMUS_OBJ_DATE;
 495                 memcpy (&Desc.guidClass, rguidClass, sizeof(GUID));
 496                 strcpyW (Desc.wszFileName, FileData.cFileName);
 497                 FileTimeToLocalFileTime (&FileData.ftCreationTime, &Desc.ftDate);
 498                 IDirectMusicLoader8_SetObject (iface, &Desc);
 499
 500                 if (!FindNextFileW (hSearch, &FileData)) {
 501                         if (GetLastError () == ERROR_NO_MORE_FILES) {
 502                                 TRACE(": search completed\n");
 503                                 result = S_OK;
 504                         } else {
 505                                 ERR(": could not get next file\n");
 506                                 result = E_FAIL;
 507                         }
 508                         FindClose (hSearch);
 509                         return result;
 510                 }
 511         } while (1);
 512 }
 513
 514 static HRESULT WINAPI IDirectMusicLoaderImpl_IDirectMusicLoader_CacheObject (LPDIRECTMUSICLOADER8 iface, IDirectMusicObject* pObject) {
 515         DMUS_OBJECTDESC Desc;
 516         HRESULT result = DMUS_E_LOADER_OBJECTNOTFOUND;
 517         struct list *pEntry;
 518         LPWINE_LOADER_ENTRY  pObjectEntry = NULL;
 519
 520         ICOM_THIS_MULTI(IDirectMusicLoaderImpl, LoaderVtbl, iface);
 521         TRACE("(%p, %p)\n", This, pObject);
 522
 523         /* get descriptor */
 524         DM_STRUCT_INIT(&Desc);
 525         IDirectMusicObject_GetDescriptor (pObject, &Desc);
 526
 527         /* now iterate thru list and check if we have alias (without object), corresponding
 528            to descriptor of input object */
 529         LIST_FOR_EACH(pEntry, This->pObjects) {
 530                 pObjectEntry = LIST_ENTRY(pEntry, WINE_LOADER_ENTRY, entry);
 531                 if ((Desc.dwValidData & DMUS_OBJ_OBJECT) &&
 532                         (pObjectEntry->Desc.dwValidData & DMUS_OBJ_OBJECT) &&
 533                         IsEqualGUID (&Desc.guidObject, &pObjectEntry->Desc.guidObject)) {
 534                         TRACE(": found it by object GUID\n");
 535                         if ((pObjectEntry->Desc.dwValidData & DMUS_OBJ_LOADED) && pObjectEntry->pObject)
 536                                 result = S_FALSE;
 537                         else
 538                                 result = S_OK;
 539                         break;
 540                 }
 541                 else if ((Desc.dwValidData & (DMUS_OBJ_FILENAME | DMUS_OBJ_FULLPATH)) &&
 542                                 (pObjectEntry->Desc.dwValidData & (DMUS_OBJ_FILENAME | DMUS_OBJ_FULLPATH)) &&
 543                                 !strncmpW (Desc.wszFileName, pObjectEntry->Desc.wszFileName, DMUS_MAX_FILENAME)) {
 544                         TRACE(": found it by fullpath filename\n");
 545                         if ((pObjectEntry->Desc.dwValidData & DMUS_OBJ_LOADED) && pObjectEntry->pObject)
 546                                 result = S_FALSE;
 547                         else
 548                                 result = S_OK;
 549                         break;
 550                 }
 551                 else if ((Desc.dwValidData & (DMUS_OBJ_NAME | DMUS_OBJ_CATEGORY)) &&
 552                                 (pObjectEntry->Desc.dwValidData & (DMUS_OBJ_NAME | DMUS_OBJ_CATEGORY)) &&
 553                                 !strncmpW (Desc.wszName, pObjectEntry->Desc.wszName, DMUS_MAX_NAME) &&
 554                                 !strncmpW (Desc.wszCategory, pObjectEntry->Desc.wszCategory, DMUS_MAX_CATEGORY)) {
 555                         TRACE(": found it by name and category\n");
 556                         if ((pObjectEntry->Desc.dwValidData & DMUS_OBJ_LOADED) && pObjectEntry->pObject)
 557                                 result = S_FALSE;
 558                         else
 559                                 result = S_OK;
 560                         break;
 561                 }
 562                 else if ((Desc.dwValidData & DMUS_OBJ_NAME) &&
 563                                 (pObjectEntry->Desc.dwValidData & DMUS_OBJ_NAME) &&
 564                                 !strncmpW (Desc.wszName, pObjectEntry->Desc.wszName, DMUS_MAX_NAME)) {
 565                         TRACE(": found it by name\n");
 566                         if ((pObjectEntry->Desc.dwValidData & DMUS_OBJ_LOADED) && pObjectEntry->pObject)
 567                                 result = S_FALSE;
 568                         else
 569                                 result = S_OK;
 570                         break;
 571                 }
 572                 else if ((Desc.dwValidData & DMUS_OBJ_FILENAME) &&
 573                                 (pObjectEntry->Desc.dwValidData & DMUS_OBJ_FILENAME) &&
 574                                 !strncmpW (Desc.wszFileName, pObjectEntry->Desc.wszFileName, DMUS_MAX_FILENAME)) {
 575                         TRACE(": found it by filename\n");
 576                         if ((pObjectEntry->Desc.dwValidData & DMUS_OBJ_LOADED) && pObjectEntry->pObject)
 577                                 result = S_FALSE;
 578                         else
 579                                 result = S_OK;
 580                         break;
 581                 }
 582         }
 583
 584         /* if we found such alias, then set everything */
 585         if (result == S_OK) {
 586                 pObjectEntry->Desc.dwValidData &= DMUS_OBJ_LOADED;
 587                 pObjectEntry->pObject = pObject;
 588                 IDirectMusicObject_AddRef (pObjectEntry->pObject);
 589         }
 590
 591         return result;
 592 }
 593
 594 static HRESULT WINAPI IDirectMusicLoaderImpl_IDirectMusicLoader_ReleaseObject (LPDIRECTMUSICLOADER8 iface, IDirectMusicObject* pObject) {
 595         DMUS_OBJECTDESC Desc;
 596         struct list *pEntry;
 597         LPWINE_LOADER_ENTRY pObjectEntry = NULL;
 598         HRESULT result = S_FALSE;
 599
 600         ICOM_THIS_MULTI(IDirectMusicLoaderImpl, LoaderVtbl, iface);
 601         TRACE("(%p, %p)\n", This, pObject);
 602
 603         /* get descriptor */
 604         DM_STRUCT_INIT(&Desc);
 605         IDirectMusicObject_GetDescriptor (pObject, &Desc);
 606
 607         /* iterate thru the list of objects we know about; check only those with DMUS_OBJ_LOADED */
 608         TRACE(": looking for the object in cache\n");
 609         LIST_FOR_EACH(pEntry, This->pObjects) {
 610                 pObjectEntry = LIST_ENTRY(pEntry, WINE_LOADER_ENTRY, entry);
 611                 if ((Desc.dwValidData & DMUS_OBJ_OBJECT) &&
 612                         (pObjectEntry->Desc.dwValidData & (DMUS_OBJ_OBJECT | DMUS_OBJ_LOADED)) &&
 613                         IsEqualGUID (&Desc.guidObject, &pObjectEntry->Desc.guidObject)) {
 614                         TRACE(": found it by object GUID\n%s\n", debugstr_DMUS_OBJECTDESC(&pObjectEntry->Desc));
 615                         result = S_OK;
 616                         break;
 617                 }
 618                 else if ((Desc.dwValidData & (DMUS_OBJ_FILENAME | DMUS_OBJ_FULLPATH)) &&
 619                                 (pObjectEntry->Desc.dwValidData & (DMUS_OBJ_FILENAME | DMUS_OBJ_FULLPATH | DMUS_OBJ_LOADED)) &&
 620                                 !strncmpW (Desc.wszFileName, pObjectEntry->Desc.wszFileName, DMUS_MAX_FILENAME)) {
 621                         TRACE(": found it by fullpath filename\n");
 622                         result = S_OK;
 623                         break;
 624                 }
 625                 else if ((Desc.dwValidData & (DMUS_OBJ_NAME | DMUS_OBJ_CATEGORY)) &&
 626                                 (pObjectEntry->Desc.dwValidData & (DMUS_OBJ_NAME | DMUS_OBJ_CATEGORY | DMUS_OBJ_LOADED)) &&
 627                                 !strncmpW (Desc.wszName, pObjectEntry->Desc.wszName, DMUS_MAX_NAME) &&
 628                                 !strncmpW (Desc.wszCategory, pObjectEntry->Desc.wszCategory, DMUS_MAX_CATEGORY)) {
 629                         TRACE(": found it by name and category\n");
 630                         result = S_OK;
 631                         break;
 632                 }
 633                 else if ((Desc.dwValidData & DMUS_OBJ_NAME) &&
 634                                 (pObjectEntry->Desc.dwValidData & (DMUS_OBJ_NAME | DMUS_OBJ_LOADED)) &&
 635                                 !strncmpW (Desc.wszName, pObjectEntry->Desc.wszName, DMUS_MAX_NAME)) {
 636                         TRACE(": found it by name\n");
 637                         result = S_OK;
 638                         break;
 639                 }
 640                 else if ((Desc.dwValidData & DMUS_OBJ_FILENAME) &&
 641                                 (pObjectEntry->Desc.dwValidData & (DMUS_OBJ_FILENAME | DMUS_OBJ_LOADED)) &&
 642                                 !strncmpW (Desc.wszFileName, pObjectEntry->Desc.wszFileName, DMUS_MAX_FILENAME)) {
 643                         TRACE(": found it by filename\n");
 644                         result = S_OK;
 645                         break;
 646                 }
 647         }
 648         if (result == S_OK) {
 649                 /*TRACE(": releasing: \n%s  - bInvalidDefaultDLS = %i\n  - pObject = %p\n", debugstr_DMUS_OBJECTDESC(&pObjectEntry->Desc), pObjectEntry->bInvalidDefaultDLS, pObjectEntry->pObject); */
 650                 IDirectMusicObject_Release (pObjectEntry->pObject);
 651                 pObjectEntry->pObject = NULL;
 652                 pObjectEntry->Desc.dwValidData &= ~DMUS_OBJ_LOADED;
 653         }
 654         return result;
 655 }
 656
 657 static HRESULT WINAPI IDirectMusicLoaderImpl_IDirectMusicLoader_ClearCache (LPDIRECTMUSICLOADER8 iface, REFGUID rguidClass) {
 658         struct list *pEntry;
 659         LPWINE_LOADER_ENTRY pObjectEntry;
 660         ICOM_THIS_MULTI(IDirectMusicLoaderImpl, LoaderVtbl, iface);
 661         TRACE("(%p, %s)\n", This, debugstr_dmguid(rguidClass));
 662
 663         LIST_FOR_EACH (pEntry, This->pObjects) {
 664                 pObjectEntry = LIST_ENTRY (pEntry, WINE_LOADER_ENTRY, entry);
 665
 666                 if ((IsEqualGUID (rguidClass, &GUID_DirectMusicAllTypes) || IsEqualGUID (rguidClass, &pObjectEntry->Desc.guidClass)) &&
 667                         (pObjectEntry->Desc.dwValidData & DMUS_OBJ_LOADED)) {
 668                         /* basically, wrap to ReleaseObject for each object found */
 669                         IDirectMusicLoader8_ReleaseObject (iface, pObjectEntry->pObject);
 670                 }
 671         }
 672
 673         return S_OK;
 674 }
 675
 676 static HRESULT WINAPI IDirectMusicLoaderImpl_IDirectMusicLoader_EnableCache (LPDIRECTMUSICLOADER8 iface, REFGUID rguidClass, BOOL fEnable) {
 677         ICOM_THIS_MULTI(IDirectMusicLoaderImpl, LoaderVtbl, iface);
 678         BOOL bCurrent;
 679         TRACE("(%p, %s, %d)\n", This, debugstr_dmguid(rguidClass), fEnable);
 680         DMUSIC_GetLoaderSettings (iface, rguidClass, NULL, &bCurrent);
 681         if (bCurrent == fEnable)
 682                 return S_FALSE;
 683         else
 684                 return DMUSIC_SetLoaderSettings (iface, rguidClass, NULL, &fEnable);
 685 }
 686
 687 static HRESULT WINAPI IDirectMusicLoaderImpl_IDirectMusicLoader_EnumObject (LPDIRECTMUSICLOADER8 iface, REFGUID rguidClass, DWORD dwIndex, LPDMUS_OBJECTDESC pDesc) {
 688         DWORD dwCount = 0;
 689         struct list *pEntry;
 690         LPWINE_LOADER_ENTRY pObjectEntry;
 691         ICOM_THIS_MULTI(IDirectMusicLoaderImpl, LoaderVtbl, iface);
 692         TRACE("(%p, %s, %d, %p)\n", This, debugstr_dmguid(rguidClass), dwIndex, pDesc);
 693
 694         DM_STRUCT_INIT(pDesc);
 695
 696         LIST_FOR_EACH (pEntry, This->pObjects) {
 697                 pObjectEntry = LIST_ENTRY (pEntry, WINE_LOADER_ENTRY, entry);
 698
 699                 if (IsEqualGUID (rguidClass, &GUID_DirectMusicAllTypes) || IsEqualGUID (rguidClass, &pObjectEntry->Desc.guidClass)) {
 700                         if (dwCount == dwIndex) {
 701                                 memcpy (pDesc, &pObjectEntry->Desc, sizeof(DMUS_OBJECTDESC));
 702                                 /* we aren't supposed to reveal this info */
 703                                 pDesc->dwValidData &= ~(DMUS_OBJ_MEMORY | DMUS_OBJ_STREAM);
 704                                 pDesc->pbMemData = NULL;
 705                                 pDesc->llMemLength = 0;
 706                                 pDesc->pStream = NULL;
 707                                 return S_OK;
 708                         }
 709                         dwCount++;
 710                 }
 711         }
 712
 713         TRACE(": not found\n");
 714         return S_FALSE;
 715 }
 716
 717 static void WINAPI IDirectMusicLoaderImpl_IDirectMusicLoader_CollectGarbage (LPDIRECTMUSICLOADER8 iface) {
 718         ICOM_THIS_MULTI(IDirectMusicLoaderImpl, LoaderVtbl, iface);
 719         FIXME("(%p): stub\n", This);
 720 }
 721
 722 static HRESULT WINAPI IDirectMusicLoaderImpl_IDirectMusicLoader_ReleaseObjectByUnknown (LPDIRECTMUSICLOADER8 iface, IUnknown* pObject) {
 723         ICOM_THIS_MULTI(IDirectMusicLoaderImpl, LoaderVtbl, iface);
 724         HRESULT result;
 725         LPDIRECTMUSICOBJECT pObjectInterface;
 726
 727         TRACE("(%p, %p)\n", This, pObject);
 728
 729         if (IsBadReadPtr (pObject, sizeof(LPUNKNOWN))) {
 730                 ERR(": pObject bad write pointer\n");
 731                 return E_POINTER;
 732         }
 733         /* we simply get IDirectMusicObject interface */
 734         result = IUnknown_QueryInterface (pObject, &IID_IDirectMusicObject, (LPVOID*)&pObjectInterface);
 735         if (FAILED(result)) return result;
 736         /* and release it in old-fashioned way */
 737         result = IDirectMusicLoader8_ReleaseObject (iface, pObjectInterface);
 738         IDirectMusicObject_Release (pObjectInterface);
 739
 740         return result;
 741 }
 742
 743 static HRESULT WINAPI IDirectMusicLoaderImpl_IDirectMusicLoader_LoadObjectFromFile (LPDIRECTMUSICLOADER8 iface, REFGUID rguidClassID, REFIID iidInterfaceID, WCHAR* pwzFilePath, void** ppObject) {
 744         ICOM_THIS_MULTI(IDirectMusicLoaderImpl, LoaderVtbl, iface);
 745         DMUS_OBJECTDESC ObjDesc;
 746         WCHAR wszLoaderSearchPath[MAX_PATH];
 747
 748         TRACE("(%p, %s, %s, %s, %p): wrapping to IDirectMusicLoaderImpl_GetObject\n", This, debugstr_dmguid(rguidClassID), debugstr_dmguid(iidInterfaceID), debugstr_w(pwzFilePath), ppObject);
 749
 750         DM_STRUCT_INIT(&ObjDesc);
 751         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 */
 752         memcpy (&ObjDesc.guidClass, rguidClassID, sizeof(CLSID));
 753         /* OK, MSDN says that search order is the following:
 754             - current directory (DONE)
 755             - windows search path (FIXME: how do I get that?)
 756             - loader's search path (DONE)
 757         */
 758         DMUSIC_GetLoaderSettings (iface, rguidClassID, wszLoaderSearchPath, NULL);
 759     /* search in current directory */
 760         if (!SearchPathW (NULL, pwzFilePath, NULL, sizeof(ObjDesc.wszFileName)/sizeof(WCHAR), ObjDesc.wszFileName, NULL) &&
 761         /* search in loader's search path */
 762                 !SearchPathW (wszLoaderSearchPath, pwzFilePath, NULL, sizeof(ObjDesc.wszFileName)/sizeof(WCHAR), ObjDesc.wszFileName, NULL)) {
 763                 /* cannot find file */
 764                 TRACE(": cannot find file\n");
 765                 return DMUS_E_LOADER_FAILEDOPEN;
 766         }
 767
 768         TRACE(": full file path = %s\n", debugstr_w (ObjDesc.wszFileName));
 769
 770         return IDirectMusicLoaderImpl_IDirectMusicLoader_GetObject (iface, &ObjDesc, iidInterfaceID, ppObject);
 771 }
 772
 773 static const IDirectMusicLoader8Vtbl DirectMusicLoader_Loader_Vtbl = {
 774         IDirectMusicLoaderImpl_IDirectMusicLoader_QueryInterface,
 775         IDirectMusicLoaderImpl_IDirectMusicLoader_AddRef,
 776         IDirectMusicLoaderImpl_IDirectMusicLoader_Release,
 777         IDirectMusicLoaderImpl_IDirectMusicLoader_GetObject,
 778         IDirectMusicLoaderImpl_IDirectMusicLoader_SetObject,
 779         IDirectMusicLoaderImpl_IDirectMusicLoader_SetSearchDirectory,
 780         IDirectMusicLoaderImpl_IDirectMusicLoader_ScanDirectory,
 781         IDirectMusicLoaderImpl_IDirectMusicLoader_CacheObject,
 782         IDirectMusicLoaderImpl_IDirectMusicLoader_ReleaseObject,
 783         IDirectMusicLoaderImpl_IDirectMusicLoader_ClearCache,
 784         IDirectMusicLoaderImpl_IDirectMusicLoader_EnableCache,
 785         IDirectMusicLoaderImpl_IDirectMusicLoader_EnumObject,
 786         IDirectMusicLoaderImpl_IDirectMusicLoader_CollectGarbage,
 787         IDirectMusicLoaderImpl_IDirectMusicLoader_ReleaseObjectByUnknown,
 788         IDirectMusicLoaderImpl_IDirectMusicLoader_LoadObjectFromFile
 789 };
 790
 791 /* for ClassFactory */
 792 HRESULT WINAPI DMUSIC_CreateDirectMusicLoaderImpl (LPCGUID lpcGUID, LPVOID *ppobj, LPUNKNOWN pUnkOuter) {
 793         IDirectMusicLoaderImpl *obj;
 794         DMUS_OBJECTDESC Desc;
 795         LPWINE_LOADER_ENTRY pDefaultDLSEntry;
 796         struct list *pEntry;
 797
 798         TRACE("(%s, %p, %p)\n", debugstr_dmguid(lpcGUID), ppobj, pUnkOuter);
 799         obj = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(IDirectMusicLoaderImpl));
 800         if (NULL == obj) {
 801                 *ppobj = (LPDIRECTMUSICLOADER8)NULL;
 802                 return E_OUTOFMEMORY;
 803         }
 804         obj->LoaderVtbl = &DirectMusicLoader_Loader_Vtbl;
 805         obj->dwRef = 0; /* will be inited with QueryInterface */
 806         /* init critical section */
 807         /* init cache/alias list */
 808         /*InitializeCriticalSection (&obj->CritSect);
 809         obj->CritSect.DebugInfo->Spare[0] = (DWORD_PTR)(__FILE__ ": IDirectMusicLoaderImpl.CritSect"); */
 810         obj->pObjects = HeapAlloc (GetProcessHeap (), HEAP_ZERO_MEMORY, sizeof(struct list));
 811         list_init (obj->pObjects);
 812         /* init settings */
 813         obj->pClassSettings = HeapAlloc (GetProcessHeap (), HEAP_ZERO_MEMORY, sizeof(struct list));
 814         list_init (obj->pClassSettings);
 815         DMUSIC_InitLoaderSettings ((LPDIRECTMUSICLOADER8)obj);
 816
 817         /* set default DLS collection (via SetObject... so that loading via DMUS_OBJ_OBJECT is possible) */
 818         DM_STRUCT_INIT(&Desc);
 819         Desc.dwValidData = DMUS_OBJ_CLASS | DMUS_OBJ_FILENAME | DMUS_OBJ_FULLPATH | DMUS_OBJ_OBJECT;
 820         memcpy (&Desc.guidClass, &CLSID_DirectMusicCollection, sizeof(CLSID));
 821         memcpy (&Desc.guidObject, &GUID_DefaultGMCollection, sizeof(GUID));
 822         DMUSIC_GetDefaultGMPath (Desc.wszFileName);
 823         IDirectMusicLoader_SetObject ((LPDIRECTMUSICLOADER8)obj, &Desc);
 824         /* and now the workaroundTM for "invalid" default DLS; basically,
 825            my tests showed that if GUID chunk is present in default DLS
 826            collection, loader treats it as "invalid" and returns
 827            DMUS_E_LOADER_NOFILENAME for all requests for it; basically, we check
 828            if out input guidObject was overwritten */
 829         pEntry = list_head (obj->pObjects);
 830         pDefaultDLSEntry = LIST_ENTRY (pEntry, WINE_LOADER_ENTRY, entry);
 831         if (!IsEqualGUID(&Desc.guidObject, &GUID_DefaultGMCollection)) {
 832                 pDefaultDLSEntry->bInvalidDefaultDLS = TRUE;
 833         }
 834
 835         /* increase number of instances */
 836         InterlockedIncrement (&dwDirectMusicLoader);
 837
 838         return IDirectMusicLoaderImpl_IDirectMusicLoader_QueryInterface ((LPDIRECTMUSICLOADER8)obj, lpcGUID, ppobj);
 839 }
 840
 841 HRESULT WINAPI DMUSIC_DestroyDirectMusicLoaderImpl (LPDIRECTMUSICLOADER8 iface) {
 842         ICOM_THIS_MULTI(IDirectMusicLoaderImpl, LoaderVtbl, iface);
 843
 844         TRACE("(%p)\n", This);
 845
 846         /* firstly, release the cache */
 847         IDirectMusicLoader8_ClearCache (iface, &GUID_DirectMusicAllTypes);
 848         /* FIXME: release all allocated entries */
 849         /* destroy critical section */
 850         /*This->CritSect.DebugInfo->Spare[0] = 0;
 851         DeleteCriticalSection (&This->CritSect); */
 852
 853         /* decrease number of instances */
 854         InterlockedDecrement (&dwDirectMusicLoader);
 855
 856         return S_OK;
 857 }
 858
 859 /* help function for DMUSIC_SetDefaultDLS */
 860 HRESULT WINAPI DMUSIC_GetDefaultGMPath (WCHAR wszPath[MAX_PATH]) {
 861         HKEY hkDM;
 862         DWORD returnType, sizeOfReturnBuffer = MAX_PATH;
 863         char szPath[MAX_PATH];
 864
 865         if ((RegOpenKeyExA (HKEY_LOCAL_MACHINE, "Software\\Microsoft\\DirectMusic" , 0, KEY_READ, &hkDM) != ERROR_SUCCESS) ||
 866             (RegQueryValueExA (hkDM, "GMFilePath", NULL, &returnType, (LPBYTE) szPath, &sizeOfReturnBuffer) != ERROR_SUCCESS)) {
 867                 WARN(": registry entry missing\n" );
 868                 return E_FAIL;
 869         }
 870         /* FIXME: Check return types to ensure we're interpreting data right */
 871         MultiByteToWideChar (CP_ACP, 0, szPath, -1, wszPath, MAX_PATH);
 872
 873         return S_OK;
 874 }
 875
 876 /* help function for retrieval of search path and caching option for certain class */
 877 HRESULT WINAPI DMUSIC_GetLoaderSettings (LPDIRECTMUSICLOADER8 iface, REFGUID pClassID, WCHAR* wszSearchPath, LPBOOL pbCache) {
 878         ICOM_THIS_MULTI(IDirectMusicLoaderImpl, LoaderVtbl, iface);
 879         struct list *pEntry;
 880         TRACE(": (%p, %s, %p, %p)\n", This, debugstr_dmguid(pClassID), wszSearchPath, pbCache);
 881
 882         LIST_FOR_EACH(pEntry, This->pClassSettings) {
 883                 LPWINE_LOADER_OPTION pOptionEntry = LIST_ENTRY(pEntry, WINE_LOADER_OPTION, entry);
 884                 if (IsEqualCLSID (pClassID, &pOptionEntry->guidClass)) {
 885                         if (wszSearchPath)
 886                                 strcpyW(wszSearchPath, pOptionEntry->wszSearchPath);
 887                         if (pbCache)
 888                                 *pbCache = pOptionEntry->bCache;
 889                         return S_OK;
 890                 }
 891         }
 892         return S_FALSE;
 893 }
 894
 895 /* help function for setting search path and caching option for certain class */
 896 static HRESULT WINAPI DMUSIC_SetLoaderSettings (LPDIRECTMUSICLOADER8 iface, REFGUID pClassID, WCHAR* wszSearchPath, LPBOOL pbCache) {
 897         ICOM_THIS_MULTI(IDirectMusicLoaderImpl, LoaderVtbl, iface);
 898         struct list *pEntry;
 899         HRESULT result = S_FALSE; /* in case pClassID != GUID_DirectMusicAllTypes and not a valid CLSID */
 900         TRACE(": (%p, %s, %p, %p)\n", This, debugstr_dmguid(pClassID), wszSearchPath, pbCache);
 901
 902         LIST_FOR_EACH(pEntry, This->pClassSettings) {
 903                 LPWINE_LOADER_OPTION pOptionEntry = LIST_ENTRY(pEntry, WINE_LOADER_OPTION, entry);
 904                 /* well, either we have GUID_DirectMusicAllTypes and need to set it to all,
 905                    or specific CLSID is given and we set it only to it */
 906                 if (IsEqualGUID (pClassID, &GUID_DirectMusicAllTypes) ||
 907                         IsEqualCLSID (pClassID, &pOptionEntry->guidClass)) {
 908                         if (wszSearchPath)
 909                                 strcpyW(pOptionEntry->wszSearchPath, wszSearchPath);
 910                         if (pbCache)
 911                                 pOptionEntry->bCache = *pbCache;
 912                         result = S_OK;
 913                 }
 914         }
 915
 916         return result;
 917 }
 918
 919 HRESULT WINAPI DMUSIC_InitLoaderSettings (LPDIRECTMUSICLOADER8 iface) {
 920         ICOM_THIS_MULTI(IDirectMusicLoaderImpl, LoaderVtbl, iface);
 921
 922         /* hard-coded list of classes */
 923         static REFCLSID classes[] = {
 924                 &CLSID_DirectMusicAudioPathConfig,
 925                 &CLSID_DirectMusicBand,
 926                 &CLSID_DirectMusicContainer,
 927                 &CLSID_DirectMusicCollection,
 928                 &CLSID_DirectMusicChordMap,
 929                 &CLSID_DirectMusicSegment,
 930                 &CLSID_DirectMusicScript,
 931                 &CLSID_DirectMusicSong,
 932                 &CLSID_DirectMusicStyle,
 933                 &CLSID_DirectMusicGraph,
 934                 &CLSID_DirectSoundWave
 935         };
 936
 937         unsigned int i;
 938         WCHAR wszCurrent[MAX_PATH];
 939
 940         TRACE(": (%p)\n", This);
 941         GetCurrentDirectoryW (MAX_PATH, wszCurrent);
 942
 943         for (i = 0; i < sizeof(classes)/sizeof(REFCLSID); i++) {
 944                 LPWINE_LOADER_OPTION pNewSetting = HeapAlloc (GetProcessHeap (), HEAP_ZERO_MEMORY, sizeof(WINE_LOADER_OPTION));
 945                 memcpy (&pNewSetting->guidClass, classes[i], sizeof(CLSID));
 946                 strcpyW (pNewSetting->wszSearchPath, wszCurrent);
 947                 pNewSetting->bCache = TRUE;
 948                 list_add_tail (This->pClassSettings, &pNewSetting->entry);
 949         }
 950
 951         return S_OK;
 952 }
 953
 954 HRESULT WINAPI DMUSIC_CopyDescriptor (LPDMUS_OBJECTDESC pDst, LPDMUS_OBJECTDESC pSrc) {
 955         TRACE(": copy \n%s", debugstr_DMUS_OBJECTDESC(pSrc));
 956         /* copy field by field */
 957         if (pSrc->dwValidData & DMUS_OBJ_CLASS) memcpy (&pDst->guidClass, &pSrc->guidClass, sizeof(CLSID));
 958         if (pSrc->dwValidData & DMUS_OBJ_OBJECT) memcpy (&pDst->guidObject, &pSrc->guidObject, sizeof(GUID));
 959         if (pSrc->dwValidData & DMUS_OBJ_DATE) memcpy (&pDst->ftDate, &pSrc->ftDate, sizeof(FILETIME));
 960         if (pSrc->dwValidData & DMUS_OBJ_VERSION) memcpy (&pDst->vVersion, &pSrc->vVersion, sizeof(DMUS_VERSION));
 961         if (pSrc->dwValidData & DMUS_OBJ_NAME) strcpyW (pDst->wszName, pSrc->wszName);
 962         if (pSrc->dwValidData & DMUS_OBJ_CATEGORY) strcpyW (pDst->wszCategory, pSrc->wszCategory);
 963         if (pSrc->dwValidData & DMUS_OBJ_FILENAME) strcpyW (pDst->wszFileName, pSrc->wszFileName);
 964         if (pSrc->dwValidData & DMUS_OBJ_STREAM) IStream_Clone (pSrc->pStream, &pDst->pStream);
 965         if (pSrc->dwValidData & DMUS_OBJ_MEMORY) {
 966                 pDst->pbMemData = pSrc->pbMemData;
 967                 pDst->llMemLength = pSrc->llMemLength;
 968         }
 969         /* set flags */
 970         pDst->dwValidData |= pSrc->dwValidData;
 971         return S_OK;
 972 }
 973
 974 BOOL WINAPI DMUSIC_IsValidLoadableClass (REFCLSID pClassID) {
 975         if (IsEqualCLSID(pClassID, &CLSID_DirectMusicAudioPathConfig) ||
 976                 IsEqualCLSID(pClassID, &CLSID_DirectMusicBand) ||
 977                 IsEqualCLSID(pClassID, &CLSID_DirectMusicContainer) ||
 978                 IsEqualCLSID(pClassID, &CLSID_DirectMusicCollection) ||
 979                 IsEqualCLSID(pClassID, &CLSID_DirectMusicChordMap) ||
 980                 IsEqualCLSID(pClassID, &CLSID_DirectMusicSegment) ||
 981                 IsEqualCLSID(pClassID, &CLSID_DirectMusicScript) ||
 982                 IsEqualCLSID(pClassID, &CLSID_DirectMusicSong) ||
 983                 IsEqualCLSID(pClassID, &CLSID_DirectMusicStyle) ||
 984                 IsEqualCLSID(pClassID, &CLSID_DirectMusicGraph) ||
 985                 IsEqualCLSID(pClassID, &CLSID_DirectSoundWave) ||
 986                 IsEqualCLSID(pClassID, &GUID_DirectMusicAllTypes))
 987                 return TRUE;
 988         else
 989                 return FALSE;
 990 }