dlls/dmloader/loader.c

   1 /*
   2  * IDirectMusicLoaderImpl
   3  *
   4  * Copyright (C) 2003-2004 Rok Mandeljc
   5  *
   6  * This program is free software; you can redistribute it and/or
   7  * modify it under the terms of the GNU Lesser General Public
   8  * License as published by the Free Software Foundation; either
   9  * version 2.1 of the License, or (at your option) any later version.
  10  *
  11  * This program is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14  * Lesser General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU Lesser General Public
  17  * License along with this program; if not, write to the Free Software
  18  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
  19  */
  20
  21 #include "dmloader_private.h"
  22
  23 WINE_DEFAULT_DEBUG_CHANNEL(dmloader);
  24
  25 static inline IDirectMusicLoaderImpl* impl_from_IDirectMusicLoader8(IDirectMusicLoader8 *iface)
  26 {
  27     return CONTAINING_RECORD(iface, IDirectMusicLoaderImpl, IDirectMusicLoader8_iface);
  28 }
  29
  30 static HRESULT DMUSIC_InitLoaderSettings(IDirectMusicLoader8 *iface);
  31 static HRESULT DMUSIC_GetLoaderSettings(IDirectMusicLoader8 *iface, REFGUID class_id, WCHAR *search_path, BOOL *cache);
  32 static HRESULT DMUSIC_SetLoaderSettings(IDirectMusicLoader8 *iface, REFGUID class_id, WCHAR *search_path, BOOL *cache);
  33
  34 static HRESULT DMUSIC_CopyDescriptor(DMUS_OBJECTDESC *pDst, DMUS_OBJECTDESC *pSrc)
  35 {
  36         if (TRACE_ON(dmloader))
  37                 dump_DMUS_OBJECTDESC(pSrc);
  38
  39         /* copy field by field */
  40         if (pSrc->dwValidData & DMUS_OBJ_CLASS) pDst->guidClass = pSrc->guidClass;
  41         if (pSrc->dwValidData & DMUS_OBJ_OBJECT) pDst->guidObject = pSrc->guidObject;
  42         if (pSrc->dwValidData & DMUS_OBJ_DATE) pDst->ftDate = pSrc->ftDate;
  43         if (pSrc->dwValidData & DMUS_OBJ_VERSION) pDst->vVersion = pSrc->vVersion;
  44         if (pSrc->dwValidData & DMUS_OBJ_NAME) strcpyW (pDst->wszName, pSrc->wszName);
  45         if (pSrc->dwValidData & DMUS_OBJ_CATEGORY) strcpyW (pDst->wszCategory, pSrc->wszCategory);
  46         if (pSrc->dwValidData & DMUS_OBJ_FILENAME) strcpyW (pDst->wszFileName, pSrc->wszFileName);
  47         if (pSrc->dwValidData & DMUS_OBJ_STREAM) IStream_Clone (pSrc->pStream, &pDst->pStream);
  48         if (pSrc->dwValidData & DMUS_OBJ_MEMORY) {
  49                 pDst->pbMemData = pSrc->pbMemData;
  50                 pDst->llMemLength = pSrc->llMemLength;
  51         }
  52         /* set flags */
  53         pDst->dwValidData |= pSrc->dwValidData;
  54         return S_OK;
  55 }
  56
  57
  58 static BOOL DMUSIC_IsValidLoadableClass (REFCLSID pClassID) {
  59         if (IsEqualCLSID(pClassID, &CLSID_DirectMusicAudioPathConfig) ||
  60                 IsEqualCLSID(pClassID, &CLSID_DirectMusicBand) ||
  61                 IsEqualCLSID(pClassID, &CLSID_DirectMusicContainer) ||
  62                 IsEqualCLSID(pClassID, &CLSID_DirectMusicCollection) ||
  63                 IsEqualCLSID(pClassID, &CLSID_DirectMusicChordMap) ||
  64                 IsEqualCLSID(pClassID, &CLSID_DirectMusicSegment) ||
  65                 IsEqualCLSID(pClassID, &CLSID_DirectMusicScript) ||
  66                 IsEqualCLSID(pClassID, &CLSID_DirectMusicSong) ||
  67                 IsEqualCLSID(pClassID, &CLSID_DirectMusicStyle) ||
  68                 IsEqualCLSID(pClassID, &CLSID_DirectMusicGraph) ||
  69                 IsEqualCLSID(pClassID, &CLSID_DirectSoundWave) ||
  70                 IsEqualCLSID(pClassID, &GUID_DirectMusicAllTypes))
  71                 return TRUE;
  72         else
  73                 return FALSE;
  74 }
  75
  76 /*****************************************************************************
  77  * IDirectMusicLoaderImpl implementation
  78  */
  79 /* IUnknown/IDirectMusicLoader(8) part: */
  80
  81 static HRESULT WINAPI IDirectMusicLoaderImpl_QueryInterface(IDirectMusicLoader8 *iface, REFIID riid, void **ppobj)
  82 {
  83         IDirectMusicLoaderImpl *This = impl_from_IDirectMusicLoader8(iface);
  84
  85         TRACE("(%p, %s, %p)\n",This, debugstr_dmguid(riid), ppobj);
  86         if (IsEqualIID (riid, &IID_IUnknown) ||
  87             IsEqualIID (riid, &IID_IDirectMusicLoader) ||
  88             IsEqualIID (riid, &IID_IDirectMusicLoader8)) {
  89                 IDirectMusicLoader_AddRef (iface);
  90                 *ppobj = This;
  91                 return S_OK;
  92         }
  93
  94         WARN(": not found\n");
  95         return E_NOINTERFACE;
  96 }
  97
  98 static ULONG WINAPI IDirectMusicLoaderImpl_AddRef(IDirectMusicLoader8 *iface)
  99 {
 100     IDirectMusicLoaderImpl *This = impl_from_IDirectMusicLoader8(iface);
 101     ULONG ref = InterlockedIncrement(&This->ref);
 102
 103     TRACE("(%p)->(): new ref = %u\n", iface, ref);
 104
 105     return ref;
 106 }
 107
 108 static ULONG WINAPI IDirectMusicLoaderImpl_Release(IDirectMusicLoader8 *iface)
 109 {
 110     IDirectMusicLoaderImpl *This = impl_from_IDirectMusicLoader8(iface);
 111     ULONG ref = InterlockedDecrement(&This->ref);
 112
 113     TRACE("(%p)->(): new ref = %u\n", iface, ref);
 114
 115     if (!ref) {
 116         /* Firstly, release the cache */
 117         IDirectMusicLoader8_ClearCache(iface, &GUID_DirectMusicAllTypes);
 118         /* FIXME: Release all allocated entries */
 119         HeapFree(GetProcessHeap(), 0, This);
 120         unlock_module();
 121     }
 122
 123     return ref;
 124 }
 125
 126 static HRESULT WINAPI IDirectMusicLoaderImpl_GetObject(IDirectMusicLoader8 *iface, DMUS_OBJECTDESC *pDesc, REFIID riid, void **ppv)
 127 {
 128         IDirectMusicLoaderImpl *This = impl_from_IDirectMusicLoader8(iface);
 129         HRESULT result = S_OK;
 130         HRESULT ret = S_OK; /* used at the end of function, to determine whether everything went OK */
 131
 132         struct list *pEntry;
 133         LPWINE_LOADER_ENTRY pObjectEntry = NULL;
 134         LPSTREAM pStream;
 135         IPersistStream* pPersistStream = NULL;
 136
 137         LPDIRECTMUSICOBJECT pObject;
 138         DMUS_OBJECTDESC GotDesc;
 139         BOOL bCache;
 140
 141         TRACE("(%p)->(%p, %s, %p)\n", This, pDesc, debugstr_dmguid(riid), ppv);
 142
 143         if (TRACE_ON(dmloader))
 144           dump_DMUS_OBJECTDESC(pDesc);
 145
 146         /* sometimes it happens that guidClass is missing... which is a BadThingTM */
 147         if (!(pDesc->dwValidData & DMUS_OBJ_CLASS)) {
 148           ERR(": guidClass not valid but needed\n");
 149           *ppv = NULL;
 150           return DMUS_E_LOADER_NOCLASSID;
 151         }
 152
 153         /* OK, first we iterate through the list of objects we know about; these are either loaded (GetObject, LoadObjectFromFile)
 154            or set via SetObject; */
 155         TRACE(": looking if we have object in the cache or if it can be found via alias\n");
 156         LIST_FOR_EACH(pEntry, This->pObjects) {
 157                 LPWINE_LOADER_ENTRY pExistingEntry = LIST_ENTRY(pEntry, WINE_LOADER_ENTRY, entry);
 158                 if ((pDesc->dwValidData & DMUS_OBJ_OBJECT) &&
 159                         (pExistingEntry->Desc.dwValidData & DMUS_OBJ_OBJECT) &&
 160                         IsEqualGUID (&pDesc->guidObject, &pExistingEntry->Desc.guidObject)) {
 161                         TRACE(": found it by object GUID\n");
 162                         /* I suppose such stuff can happen only when GUID for object is given (GUID_DefaultGMCollection) */
 163                         if (pExistingEntry->bInvalidDefaultDLS) {
 164                                 TRACE(": found faulty default DLS collection... enabling M$ compliant behaviour\n");
 165                                 return DMUS_E_LOADER_NOFILENAME;
 166                         }
 167                         if (pExistingEntry->Desc.dwValidData & DMUS_OBJ_LOADED) {
 168                                 TRACE(": already loaded\n");
 169                                 return IDirectMusicObject_QueryInterface (pExistingEntry->pObject, riid, ppv);
 170                         } else {
 171                                 TRACE(": not loaded yet\n");
 172                                 pObjectEntry = pExistingEntry;
 173                         }
 174                 }
 175                 else if ((pDesc->dwValidData & (DMUS_OBJ_FILENAME | DMUS_OBJ_FULLPATH)) &&
 176                                 (pExistingEntry->Desc.dwValidData & (DMUS_OBJ_FILENAME | DMUS_OBJ_FULLPATH)) &&
 177                                 !strncmpW (pDesc->wszFileName, pExistingEntry->Desc.wszFileName, DMUS_MAX_FILENAME)) {
 178                         TRACE(": found it by fullpath filename\n");
 179                         if (pExistingEntry->Desc.dwValidData & DMUS_OBJ_LOADED) {
 180                                 TRACE(": already loaded\n");
 181                                 return IDirectMusicObject_QueryInterface (pExistingEntry->pObject, riid, ppv);
 182                         } else {
 183                                 TRACE(": not loaded yet\n");
 184                                 pObjectEntry = pExistingEntry;
 185                         }
 186                 }
 187                 else if ((pDesc->dwValidData & (DMUS_OBJ_NAME | DMUS_OBJ_CATEGORY)) &&
 188                                 (pExistingEntry->Desc.dwValidData & (DMUS_OBJ_NAME | DMUS_OBJ_CATEGORY)) &&
 189                                 !strncmpW (pDesc->wszName, pExistingEntry->Desc.wszName, DMUS_MAX_NAME) &&
 190                                 !strncmpW (pDesc->wszCategory, pExistingEntry->Desc.wszCategory, DMUS_MAX_CATEGORY)) {
 191                         TRACE(": found it by name and category\n");
 192                         if (pExistingEntry->Desc.dwValidData & DMUS_OBJ_LOADED) {
 193                                 TRACE(": already loaded\n");
 194                                 return IDirectMusicObject_QueryInterface (pExistingEntry->pObject, riid, ppv);
 195                         } else {
 196                                 TRACE(": not loaded yet\n");
 197                                 pObjectEntry = pExistingEntry;
 198                         }
 199                 }
 200                 else if ((pDesc->dwValidData & DMUS_OBJ_NAME) &&
 201                                 (pExistingEntry->Desc.dwValidData & DMUS_OBJ_NAME) &&
 202                                 !strncmpW (pDesc->wszName, pExistingEntry->Desc.wszName, DMUS_MAX_NAME)) {
 203                         TRACE(": found it by name\n");
 204                         if (pExistingEntry->Desc.dwValidData & DMUS_OBJ_LOADED) {
 205                                 TRACE(": already loaded\n");
 206                                 return IDirectMusicObject_QueryInterface (pExistingEntry->pObject, riid, ppv);
 207                         } else {
 208                                 TRACE(": not loaded yet\n");
 209                                 pObjectEntry = pExistingEntry;
 210                         }
 211                 }
 212                 else if ((pDesc->dwValidData & DMUS_OBJ_FILENAME) &&
 213                                 (pExistingEntry->Desc.dwValidData & DMUS_OBJ_FILENAME) &&
 214                                 !strncmpW (pDesc->wszFileName, pExistingEntry->Desc.wszFileName, DMUS_MAX_FILENAME)) {
 215                         TRACE(": found it by filename\n");
 216                         if (pExistingEntry->Desc.dwValidData & DMUS_OBJ_LOADED) {
 217                                 TRACE(": already loaded\n");
 218                                 return IDirectMusicObject_QueryInterface (pExistingEntry->pObject, riid, ppv);
 219                         } else {
 220                                 TRACE(": not loaded yet\n");
 221                                 pObjectEntry = pExistingEntry;
 222                         }
 223                 }
 224         }
 225
 226         /* basically, if we found alias, we use its descriptor to load...
 227            else we use info we were given */
 228         if (pObjectEntry) {
 229                 TRACE(": found alias entry for requested object... using stored info\n");
 230                 /* I think in certain cases it can happen that entry's descriptor lacks info about
 231                    where to load from (e.g.: if we loaded from stream and then released object
 232                    from cache; then only its CLSID, GUID and perhaps name are left); so just
 233                    overwrite whatever info the entry has (since it ought to be 100% correct) */
 234                 DMUSIC_CopyDescriptor (pDesc, &pObjectEntry->Desc);
 235                 /*pDesc = &pObjectEntry->Desc; */ /* FIXME: is this OK? */
 236         } else {
 237                 TRACE(": no cache/alias entry found for requested object\n");
 238         }
 239
 240         if (pDesc->dwValidData & DMUS_OBJ_URL) {
 241                 TRACE(": loading from URLs not supported yet\n");
 242                 return DMUS_E_LOADER_FORMATNOTSUPPORTED;
 243         }
 244         else if (pDesc->dwValidData & DMUS_OBJ_FILENAME) {
 245                 /* load object from file */
 246                 /* generate filename; if it's full path, don't add search
 247                    directory path, otherwise do */
 248                 WCHAR wszFileName[MAX_PATH];
 249
 250                 if (pDesc->dwValidData & DMUS_OBJ_FULLPATH) {
 251                         lstrcpyW(wszFileName, pDesc->wszFileName);
 252                 } else {
 253                         WCHAR *p, wszSearchPath[MAX_PATH];
 254                         DMUSIC_GetLoaderSettings (iface, &pDesc->guidClass, wszSearchPath, NULL);
 255                         lstrcpyW(wszFileName, wszSearchPath);
 256                         p = wszFileName + lstrlenW(wszFileName);
 257                         if (p > wszFileName && p[-1] != '\\') *p++ = '\\';
 258                         strcpyW(p, pDesc->wszFileName);
 259                 }
 260                 TRACE(": loading from file (%s)\n", debugstr_w(wszFileName));
 261                 /* create stream and associate it with file */
 262                 result = DMUSIC_CreateDirectMusicLoaderFileStream ((LPVOID*)&pStream);
 263                 if (FAILED(result)) {
 264                         ERR(": could not create file stream\n");
 265                         return result;
 266                 }
 267                 result = IDirectMusicLoaderFileStream_Attach (pStream, wszFileName, iface);
 268                 if (FAILED(result)) {
 269                         ERR(": could not attach stream to file\n");
 270                         IStream_Release (pStream);
 271                         return result;
 272                 }
 273         }
 274         else if (pDesc->dwValidData & DMUS_OBJ_MEMORY) {
 275                 /* load object from resource */
 276                 TRACE(": loading from resource\n");
 277                 /* create stream and associate it with given resource */
 278                 result = DMUSIC_CreateDirectMusicLoaderResourceStream ((LPVOID*)&pStream);
 279                 if (FAILED(result)) {
 280                         ERR(": could not create resource stream\n");
 281                         return result;
 282                 }
 283                 result = IDirectMusicLoaderResourceStream_Attach (pStream, pDesc->pbMemData, pDesc->llMemLength, 0, iface);
 284                 if (FAILED(result)) {
 285                         ERR(": could not attach stream to resource\n");
 286                         IStream_Release (pStream);
 287                         return result;
 288                 }
 289         }
 290         else if (pDesc->dwValidData & DMUS_OBJ_STREAM) {
 291                 /* load object from stream */
 292                 TRACE(": loading from stream\n");
 293                 /* create universal stream and associate it with given one */
 294                 result = DMUSIC_CreateDirectMusicLoaderGenericStream ((LPVOID*)&pStream);
 295                 if (FAILED(result)) {
 296                         ERR(": could not create generic stream\n");
 297                         return result;
 298                 }
 299                 result = IDirectMusicLoaderGenericStream_Attach (pStream, pDesc->pStream, iface);
 300                 if (FAILED(result)) {
 301                         ERR(": failed to attach stream\n");
 302                         IStream_Release (pStream);
 303                         return result;
 304                 }
 305         } else {
 306                 /* nowhere to load from */
 307                 FIXME(": unknown/unsupported way of loading\n");
 308                 return DMUS_E_LOADER_NOFILENAME; /* test shows this is returned */
 309         }
 310
 311         /* create object */
 312         result = CoCreateInstance (&pDesc->guidClass, NULL, CLSCTX_INPROC_SERVER, &IID_IDirectMusicObject, (LPVOID*)&pObject);
 313         if (FAILED(result)) {
 314                 ERR(": could not create object\n");
 315                 return result;
 316         }
 317         /* acquire PersistStream interface */
 318         result = IDirectMusicObject_QueryInterface (pObject, &IID_IPersistStream, (LPVOID*)&pPersistStream);
 319         if (FAILED(result)) {
 320                 ERR("failed to Query\n");
 321                 return result;
 322         }
 323         /* load */
 324         result = IPersistStream_Load (pPersistStream, pStream);
 325         if (result != S_OK) {
 326                 WARN(": failed to (completely) load object (%s)\n", debugstr_dmreturn(result));
 327                 return result;
 328         }
 329         /* get descriptor */
 330         DM_STRUCT_INIT(&GotDesc);
 331         result = IDirectMusicObject_GetDescriptor (pObject, &GotDesc);
 332         /* set filename (if we loaded via filename) */
 333         if (pDesc->dwValidData & DMUS_OBJ_FILENAME) {
 334                 GotDesc.dwValidData |= (pDesc->dwValidData & (DMUS_OBJ_FILENAME | DMUS_OBJ_FULLPATH));
 335                 strcpyW (GotDesc.wszFileName, pDesc->wszFileName);
 336         }
 337         if (FAILED(result)) {
 338                 ERR(": failed to get descriptor\n");
 339                 return result;
 340         }
 341         /* release all loading related stuff */
 342         IStream_Release (pStream);
 343         IPersistStream_Release (pPersistStream);
 344
 345         /* add object to cache/overwrite existing info (if cache is enabled) */
 346         DMUSIC_GetLoaderSettings (iface, &pDesc->guidClass, NULL, &bCache);
 347         if (bCache) {
 348                 if (!pObjectEntry) {
 349                         pObjectEntry = HeapAlloc (GetProcessHeap (), HEAP_ZERO_MEMORY, sizeof(WINE_LOADER_ENTRY));
 350                         DM_STRUCT_INIT(&pObjectEntry->Desc);
 351                         DMUSIC_CopyDescriptor (&pObjectEntry->Desc, &GotDesc);
 352                         pObjectEntry->pObject = pObject;
 353                         pObjectEntry->bInvalidDefaultDLS = FALSE;
 354                         list_add_head (This->pObjects, &pObjectEntry->entry);
 355                 } else {
 356                         DMUSIC_CopyDescriptor (&pObjectEntry->Desc, &GotDesc);
 357                         pObjectEntry->pObject = pObject;
 358                         pObjectEntry->bInvalidDefaultDLS = FALSE;
 359                 }
 360                 TRACE(": filled in cache entry\n");
 361         } else TRACE(": caching disabled\n");
 362
 363 #if 0
 364         /* for debug purposes (e.g. to check if all files are cached) */
 365         TRACE("*** Loader's cache ***\n");
 366         int i = 0;
 367         LIST_FOR_EACH (pEntry, This->pObjects) {
 368                 i++;
 369                 pObjectEntry = LIST_ENTRY(pEntry, WINE_LOADER_ENTRY, entry);
 370                 TRACE(": entry nr. %i:\n%s\n  - bInvalidDefaultDLS = %i\n  - pObject = %p\n", i, debugstr_DMUS_OBJECTDESC(&pObjectEntry->Desc), pObjectEntry->bInvalidDefaultDLS, pObjectEntry->pObject);
 371         }
 372 #endif
 373
 374         result = IDirectMusicObject_QueryInterface (pObject, riid, ppv);
 375         if (!bCache) IDirectMusicObject_Release (pObject); /* since loader's reference is not needed */
 376         /* if there was trouble with loading, and if no other error occurred,
 377            we should return DMUS_S_PARTIALLOAD; else, error is returned */
 378         if (result == S_OK)
 379                 return ret;
 380         else
 381                 return result;
 382 }
 383
 384 static HRESULT WINAPI IDirectMusicLoaderImpl_SetObject(IDirectMusicLoader8 *iface, DMUS_OBJECTDESC *pDesc)
 385 {
 386         IDirectMusicLoaderImpl *This = impl_from_IDirectMusicLoader8(iface);
 387         LPSTREAM pStream;
 388         LPDIRECTMUSICOBJECT pObject;
 389         DMUS_OBJECTDESC Desc;
 390         struct list *pEntry;
 391         LPWINE_LOADER_ENTRY pObjectEntry, pNewEntry;
 392         HRESULT hr;
 393
 394         TRACE("(%p)->(%p)\n", This, pDesc);
 395
 396         if (TRACE_ON(dmloader))
 397                 dump_DMUS_OBJECTDESC(pDesc);
 398
 399         /* create stream and load additional info from it */
 400         if (pDesc->dwValidData & DMUS_OBJ_FILENAME) {
 401                 /* generate filename; if it's full path, don't add search
 402                    directory path, otherwise do */
 403                 WCHAR wszFileName[MAX_PATH];
 404
 405                 if (pDesc->dwValidData & DMUS_OBJ_FULLPATH) {
 406                         lstrcpyW(wszFileName, pDesc->wszFileName);
 407                 } else {
 408                         WCHAR *p;
 409                         WCHAR wszSearchPath[MAX_PATH];
 410                         DMUSIC_GetLoaderSettings (iface, &pDesc->guidClass, wszSearchPath, NULL);
 411                         lstrcpyW(wszFileName, wszSearchPath);
 412                         p = wszFileName + lstrlenW(wszFileName);
 413                         if (p > wszFileName && p[-1] != '\\') *p++ = '\\';
 414                         strcpyW(p, pDesc->wszFileName);
 415                 }
 416                 /* create stream */
 417                 hr = DMUSIC_CreateDirectMusicLoaderFileStream ((LPVOID*)&pStream);
 418                 if (FAILED(hr)) {
 419                         ERR(": could not create file stream\n");
 420                         return DMUS_E_LOADER_FAILEDOPEN;
 421                 }
 422                 /* attach stream */
 423                 hr = IDirectMusicLoaderFileStream_Attach (pStream, wszFileName, iface);
 424                 if (FAILED(hr)) {
 425                         ERR(": could not attach stream to file\n");
 426                         IStream_Release (pStream);
 427                         return DMUS_E_LOADER_FAILEDOPEN;
 428                 }
 429         }
 430         else if (pDesc->dwValidData & DMUS_OBJ_STREAM) {
 431                 /* create stream */
 432                 hr = DMUSIC_CreateDirectMusicLoaderGenericStream ((LPVOID*)&pStream);
 433                 if (FAILED(hr)) {
 434                         ERR(": could not create generic stream\n");
 435                         return DMUS_E_LOADER_FAILEDOPEN;
 436                 }
 437                 /* attach stream */
 438                 hr = IDirectMusicLoaderGenericStream_Attach (pStream, pDesc->pStream, iface);
 439                 if (FAILED(hr)) {
 440                         ERR(": could not attach stream\n");
 441                         IStream_Release (pStream);
 442                         return DMUS_E_LOADER_FAILEDOPEN;
 443                 }
 444         }
 445         else if (pDesc->dwValidData & DMUS_OBJ_MEMORY) {
 446                 /* create stream */
 447                 hr = DMUSIC_CreateDirectMusicLoaderResourceStream ((LPVOID*)&pStream);
 448                 if (FAILED(hr)) {
 449                         ERR(": could not create resource stream\n");
 450                         return DMUS_E_LOADER_FAILEDOPEN;
 451                 }
 452                 /* attach stream */
 453                 hr = IDirectMusicLoaderResourceStream_Attach (pStream, pDesc->pbMemData, pDesc->llMemLength, 0, iface);
 454                 if (FAILED(hr)) {
 455                         ERR(": could not attach stream to resource\n");
 456                         IStream_Release (pStream);
 457                         return DMUS_E_LOADER_FAILEDOPEN;
 458                 }
 459         }
 460         else {
 461                 ERR(": no way to get additional info\n");
 462                 return DMUS_E_LOADER_FAILEDOPEN;
 463         }
 464
 465         /* create object */
 466         hr = CoCreateInstance (&pDesc->guidClass, NULL, CLSCTX_INPROC_SERVER, &IID_IDirectMusicObject, (LPVOID*)&pObject);
 467         if (FAILED(hr)) {
 468                 ERR("Object creation of %s failed 0x%08x\n", debugstr_guid(&pDesc->guidClass),hr);
 469                 return DMUS_E_LOADER_FAILEDOPEN;
 470         }
 471
 472         /* *sigh*... some ms objects have lousy implementation of ParseDescriptor that clears input descriptor :( */
 473 #ifdef NOW_WE_ARE_FREE
 474         /* parse descriptor: we actually use input descriptor; fields that aren't available from stream remain,
 475            otherwise real info is set */
 476          IDirectMusicObject_ParseDescriptor (pObject, pStream, pDesc);
 477 #endif
 478         /* hmph... due to some trouble I had with certain tests, we store current position and then set it back */
 479         DM_STRUCT_INIT(&Desc);
 480         if (FAILED(IDirectMusicObject_ParseDescriptor (pObject, pStream, &Desc))) {
 481                 ERR(": couldn't parse descriptor\n");
 482                 return DMUS_E_LOADER_FORMATNOTSUPPORTED;
 483         }
 484
 485         /* copy elements from parsed descriptor into input descriptor; this sets new info, overwriting if necessary,
 486            but leaves info that's provided by input and not available from stream */
 487         DMUSIC_CopyDescriptor (pDesc, &Desc);
 488
 489         /* release everything */
 490         IDirectMusicObject_Release (pObject);
 491         IStream_Release (pStream);
 492
 493         /* sometimes it happens that twisted programs call SetObject for same object twice...
 494            in such cases, native loader returns S_OK and does nothing... a sound plan */
 495         LIST_FOR_EACH (pEntry, This->pObjects) {
 496                 pObjectEntry = LIST_ENTRY (pEntry, WINE_LOADER_ENTRY, entry);
 497                 if (!memcmp (&pObjectEntry->Desc, pDesc, sizeof(DMUS_OBJECTDESC))) {
 498                         TRACE(": exactly same entry already exists\n");
 499                         return S_OK;
 500                 }
 501         }
 502
 503         /* add new entry */
 504         TRACE(": adding alias entry with following info:\n");
 505         if (TRACE_ON(dmloader))
 506                 dump_DMUS_OBJECTDESC(pDesc);
 507         pNewEntry = HeapAlloc (GetProcessHeap (), HEAP_ZERO_MEMORY, sizeof(WINE_LOADER_ENTRY));
 508         /* use this function instead of pure memcpy due to streams (memcpy just copies pointer),
 509            which is basically used further by app that called SetDescriptor... better safety than exception */
 510         DMUSIC_CopyDescriptor (&pNewEntry->Desc, pDesc);
 511         list_add_head (This->pObjects, &pNewEntry->entry);
 512
 513         return S_OK;
 514 }
 515
 516 static HRESULT WINAPI IDirectMusicLoaderImpl_SetSearchDirectory(IDirectMusicLoader8 *iface, REFGUID rguidClass, WCHAR *pwzPath, BOOL fClear)
 517 {
 518         IDirectMusicLoaderImpl *This = impl_from_IDirectMusicLoader8(iface);
 519         WCHAR wszCurrentPath[MAX_PATH];
 520         TRACE("(%p, %s, %s, %d)\n", This, debugstr_dmguid(rguidClass), debugstr_w(pwzPath), fClear);
 521         FIXME(": fClear ignored\n");
 522         DMUSIC_GetLoaderSettings (iface, rguidClass, wszCurrentPath, NULL);
 523         if (!strncmpW(wszCurrentPath, pwzPath, MAX_PATH)) {
 524           return S_FALSE;
 525         }
 526         /* FIXME: check if path is valid; else return DMUS_E_LOADER_BADPATH */
 527         return DMUSIC_SetLoaderSettings (iface, rguidClass, pwzPath, NULL);
 528 }
 529
 530 static HRESULT WINAPI IDirectMusicLoaderImpl_ScanDirectory(IDirectMusicLoader8 *iface, REFGUID rguidClass, WCHAR *pwzFileExtension, WCHAR *pwzScanFileName)
 531 {
 532         IDirectMusicLoaderImpl *This = impl_from_IDirectMusicLoader8(iface);
 533         static const WCHAR wszAny[] = {'*',0};
 534         WIN32_FIND_DATAW FileData;
 535         HANDLE hSearch;
 536         WCHAR wszSearchString[MAX_PATH];
 537         WCHAR *p;
 538         HRESULT result;
 539         TRACE("(%p, %s, %p, %p)\n", This, debugstr_dmguid(rguidClass), pwzFileExtension, pwzScanFileName);
 540         if (IsEqualGUID (rguidClass, &GUID_DirectMusicAllTypes) || !DMUSIC_IsValidLoadableClass(rguidClass)) {
 541                 ERR(": rguidClass invalid CLSID\n");
 542                 return REGDB_E_CLASSNOTREG;
 543         }
 544
 545         /* get search path for given class */
 546         DMUSIC_GetLoaderSettings (iface, rguidClass, wszSearchString, NULL);
 547
 548         p = wszSearchString + lstrlenW(wszSearchString);
 549         if (p > wszSearchString && p[-1] != '\\') *p++ = '\\';
 550         *p++ = '*'; /* any file */
 551         if (strcmpW (pwzFileExtension, wszAny)) *p++ = '.'; /* if we have actual extension, put a dot */
 552         strcpyW (p, pwzFileExtension);
 553
 554         TRACE(": search string: %s\n", debugstr_w(wszSearchString));
 555
 556         hSearch = FindFirstFileW (wszSearchString, &FileData);
 557         if (hSearch == INVALID_HANDLE_VALUE) {
 558                 TRACE(": no files found\n");
 559                 return S_FALSE;
 560         }
 561
 562         do {
 563                 DMUS_OBJECTDESC Desc;
 564                 DM_STRUCT_INIT(&Desc);
 565                 Desc.dwValidData = DMUS_OBJ_CLASS | DMUS_OBJ_FILENAME | DMUS_OBJ_FULLPATH | DMUS_OBJ_DATE;
 566                 Desc.guidClass = *rguidClass;
 567                 strcpyW (Desc.wszFileName, FileData.cFileName);
 568                 FileTimeToLocalFileTime (&FileData.ftCreationTime, &Desc.ftDate);
 569                 IDirectMusicLoader8_SetObject (iface, &Desc);
 570
 571                 if (!FindNextFileW (hSearch, &FileData)) {
 572                         if (GetLastError () == ERROR_NO_MORE_FILES) {
 573                                 TRACE(": search completed\n");
 574                                 result = S_OK;
 575                         } else {
 576                                 ERR(": could not get next file\n");
 577                                 result = E_FAIL;
 578                         }
 579                         FindClose (hSearch);
 580                         return result;
 581                 }
 582         } while (1);
 583 }
 584
 585 static HRESULT WINAPI IDirectMusicLoaderImpl_CacheObject(IDirectMusicLoader8 *iface, IDirectMusicObject *pObject)
 586 {
 587         IDirectMusicLoaderImpl *This = impl_from_IDirectMusicLoader8(iface);
 588         DMUS_OBJECTDESC Desc;
 589         HRESULT result = DMUS_E_LOADER_OBJECTNOTFOUND;
 590         struct list *pEntry;
 591         LPWINE_LOADER_ENTRY  pObjectEntry = NULL;
 592
 593         TRACE("(%p, %p)\n", This, pObject);
 594
 595         /* get descriptor */
 596         DM_STRUCT_INIT(&Desc);
 597         IDirectMusicObject_GetDescriptor (pObject, &Desc);
 598
 599         /* now iterate through the list and check if we have an alias (without object), corresponding
 600            to the descriptor of the input object */
 601         LIST_FOR_EACH(pEntry, This->pObjects) {
 602                 pObjectEntry = LIST_ENTRY(pEntry, WINE_LOADER_ENTRY, entry);
 603                 if ((Desc.dwValidData & DMUS_OBJ_OBJECT) &&
 604                         (pObjectEntry->Desc.dwValidData & DMUS_OBJ_OBJECT) &&
 605                         IsEqualGUID (&Desc.guidObject, &pObjectEntry->Desc.guidObject)) {
 606                         TRACE(": found it by object GUID\n");
 607                         if ((pObjectEntry->Desc.dwValidData & DMUS_OBJ_LOADED) && pObjectEntry->pObject)
 608                                 result = S_FALSE;
 609                         else
 610                                 result = S_OK;
 611                         break;
 612                 }
 613                 else if ((Desc.dwValidData & (DMUS_OBJ_FILENAME | DMUS_OBJ_FULLPATH)) &&
 614                                 (pObjectEntry->Desc.dwValidData & (DMUS_OBJ_FILENAME | DMUS_OBJ_FULLPATH)) &&
 615                                 !strncmpW (Desc.wszFileName, pObjectEntry->Desc.wszFileName, DMUS_MAX_FILENAME)) {
 616                         TRACE(": found it by fullpath filename\n");
 617                         if ((pObjectEntry->Desc.dwValidData & DMUS_OBJ_LOADED) && pObjectEntry->pObject)
 618                                 result = S_FALSE;
 619                         else
 620                                 result = S_OK;
 621                         break;
 622                 }
 623                 else if ((Desc.dwValidData & (DMUS_OBJ_NAME | DMUS_OBJ_CATEGORY)) &&
 624                                 (pObjectEntry->Desc.dwValidData & (DMUS_OBJ_NAME | DMUS_OBJ_CATEGORY)) &&
 625                                 !strncmpW (Desc.wszName, pObjectEntry->Desc.wszName, DMUS_MAX_NAME) &&
 626                                 !strncmpW (Desc.wszCategory, pObjectEntry->Desc.wszCategory, DMUS_MAX_CATEGORY)) {
 627                         TRACE(": found it by name and category\n");
 628                         if ((pObjectEntry->Desc.dwValidData & DMUS_OBJ_LOADED) && pObjectEntry->pObject)
 629                                 result = S_FALSE;
 630                         else
 631                                 result = S_OK;
 632                         break;
 633                 }
 634                 else if ((Desc.dwValidData & DMUS_OBJ_NAME) &&
 635                                 (pObjectEntry->Desc.dwValidData & DMUS_OBJ_NAME) &&
 636                                 !strncmpW (Desc.wszName, pObjectEntry->Desc.wszName, DMUS_MAX_NAME)) {
 637                         TRACE(": found it by name\n");
 638                         if ((pObjectEntry->Desc.dwValidData & DMUS_OBJ_LOADED) && pObjectEntry->pObject)
 639                                 result = S_FALSE;
 640                         else
 641                                 result = S_OK;
 642                         break;
 643                 }
 644                 else if ((Desc.dwValidData & DMUS_OBJ_FILENAME) &&
 645                                 (pObjectEntry->Desc.dwValidData & DMUS_OBJ_FILENAME) &&
 646                                 !strncmpW (Desc.wszFileName, pObjectEntry->Desc.wszFileName, DMUS_MAX_FILENAME)) {
 647                         TRACE(": found it by filename\n");
 648                         if ((pObjectEntry->Desc.dwValidData & DMUS_OBJ_LOADED) && pObjectEntry->pObject)
 649                                 result = S_FALSE;
 650                         else
 651                                 result = S_OK;
 652                         break;
 653                 }
 654         }
 655
 656         /* if we found such alias, then set everything */
 657         if (result == S_OK) {
 658                 pObjectEntry->Desc.dwValidData &= DMUS_OBJ_LOADED;
 659                 pObjectEntry->pObject = pObject;
 660                 IDirectMusicObject_AddRef (pObjectEntry->pObject);
 661         }
 662
 663         return result;
 664 }
 665
 666 static HRESULT WINAPI IDirectMusicLoaderImpl_ReleaseObject(IDirectMusicLoader8 *iface, IDirectMusicObject *pObject)
 667 {
 668         IDirectMusicLoaderImpl *This = impl_from_IDirectMusicLoader8(iface);
 669         DMUS_OBJECTDESC Desc;
 670         struct list *pEntry;
 671         LPWINE_LOADER_ENTRY pObjectEntry = NULL;
 672         HRESULT result = S_FALSE;
 673
 674         TRACE("(%p, %p)\n", This, pObject);
 675
 676         if(!pObject) return E_POINTER;
 677
 678         /* get descriptor */
 679         DM_STRUCT_INIT(&Desc);
 680         IDirectMusicObject_GetDescriptor (pObject, &Desc);
 681
 682         /* iterate through the list of objects we know about; check only those with DMUS_OBJ_LOADED */
 683         TRACE(": looking for the object in cache\n");
 684         LIST_FOR_EACH(pEntry, This->pObjects) {
 685                 pObjectEntry = LIST_ENTRY(pEntry, WINE_LOADER_ENTRY, entry);
 686                 if ((Desc.dwValidData & DMUS_OBJ_OBJECT) &&
 687                         (pObjectEntry->Desc.dwValidData & (DMUS_OBJ_OBJECT | DMUS_OBJ_LOADED)) &&
 688                         IsEqualGUID (&Desc.guidObject, &pObjectEntry->Desc.guidObject)) {
 689                         TRACE(": found it by object GUID\n");
 690                         if (TRACE_ON(dmloader))
 691                                 dump_DMUS_OBJECTDESC(&pObjectEntry->Desc);
 692                         result = S_OK;
 693                         break;
 694                 }
 695                 else if ((Desc.dwValidData & (DMUS_OBJ_FILENAME | DMUS_OBJ_FULLPATH)) &&
 696                                 (pObjectEntry->Desc.dwValidData & (DMUS_OBJ_FILENAME | DMUS_OBJ_FULLPATH | DMUS_OBJ_LOADED)) &&
 697                                 !strncmpW (Desc.wszFileName, pObjectEntry->Desc.wszFileName, DMUS_MAX_FILENAME)) {
 698                         TRACE(": found it by fullpath filename\n");
 699                         result = S_OK;
 700                         break;
 701                 }
 702                 else if ((Desc.dwValidData & (DMUS_OBJ_NAME | DMUS_OBJ_CATEGORY)) &&
 703                                 (pObjectEntry->Desc.dwValidData & (DMUS_OBJ_NAME | DMUS_OBJ_CATEGORY | DMUS_OBJ_LOADED)) &&
 704                                 !strncmpW (Desc.wszName, pObjectEntry->Desc.wszName, DMUS_MAX_NAME) &&
 705                                 !strncmpW (Desc.wszCategory, pObjectEntry->Desc.wszCategory, DMUS_MAX_CATEGORY)) {
 706                         TRACE(": found it by name and category\n");
 707                         result = S_OK;
 708                         break;
 709                 }
 710                 else if ((Desc.dwValidData & DMUS_OBJ_NAME) &&
 711                                 (pObjectEntry->Desc.dwValidData & (DMUS_OBJ_NAME | DMUS_OBJ_LOADED)) &&
 712                                 !strncmpW (Desc.wszName, pObjectEntry->Desc.wszName, DMUS_MAX_NAME)) {
 713                         TRACE(": found it by name\n");
 714                         result = S_OK;
 715                         break;
 716                 }
 717                 else if ((Desc.dwValidData & DMUS_OBJ_FILENAME) &&
 718                                 (pObjectEntry->Desc.dwValidData & (DMUS_OBJ_FILENAME | DMUS_OBJ_LOADED)) &&
 719                                 !strncmpW (Desc.wszFileName, pObjectEntry->Desc.wszFileName, DMUS_MAX_FILENAME)) {
 720                         TRACE(": found it by filename\n");
 721                         result = S_OK;
 722                         break;
 723                 }
 724         }
 725         if (result == S_OK) {
 726                 /*TRACE(": releasing:\n%s  - bInvalidDefaultDLS = %i\n  - pObject = %p\n", debugstr_DMUS_OBJECTDESC(&pObjectEntry->Desc), pObjectEntry->bInvalidDefaultDLS, pObjectEntry->pObject); */
 727                 IDirectMusicObject_Release (pObjectEntry->pObject);
 728                 pObjectEntry->pObject = NULL;
 729                 pObjectEntry->Desc.dwValidData &= ~DMUS_OBJ_LOADED;
 730         }
 731         return result;
 732 }
 733
 734 static HRESULT WINAPI IDirectMusicLoaderImpl_ClearCache(IDirectMusicLoader8 *iface, REFGUID rguidClass)
 735 {
 736         IDirectMusicLoaderImpl *This = impl_from_IDirectMusicLoader8(iface);
 737         struct list *pEntry;
 738         LPWINE_LOADER_ENTRY pObjectEntry;
 739         TRACE("(%p, %s)\n", This, debugstr_dmguid(rguidClass));
 740
 741         LIST_FOR_EACH (pEntry, This->pObjects) {
 742                 pObjectEntry = LIST_ENTRY (pEntry, WINE_LOADER_ENTRY, entry);
 743
 744                 if ((IsEqualGUID (rguidClass, &GUID_DirectMusicAllTypes) || IsEqualGUID (rguidClass, &pObjectEntry->Desc.guidClass)) &&
 745                         (pObjectEntry->Desc.dwValidData & DMUS_OBJ_LOADED)) {
 746                         /* basically, wrap to ReleaseObject for each object found */
 747                         IDirectMusicLoader8_ReleaseObject (iface, pObjectEntry->pObject);
 748                 }
 749         }
 750
 751         return S_OK;
 752 }
 753
 754 static HRESULT WINAPI IDirectMusicLoaderImpl_EnableCache(IDirectMusicLoader8 *iface, REFGUID rguidClass, BOOL fEnable)
 755 {
 756         IDirectMusicLoaderImpl *This = impl_from_IDirectMusicLoader8(iface);
 757         BOOL bCurrent;
 758         TRACE("(%p, %s, %d)\n", This, debugstr_dmguid(rguidClass), fEnable);
 759         DMUSIC_GetLoaderSettings (iface, rguidClass, NULL, &bCurrent);
 760         if (bCurrent == fEnable)
 761                 return S_FALSE;
 762         else
 763                 return DMUSIC_SetLoaderSettings (iface, rguidClass, NULL, &fEnable);
 764 }
 765
 766 static HRESULT WINAPI IDirectMusicLoaderImpl_EnumObject(IDirectMusicLoader8 *iface, REFGUID rguidClass, DWORD dwIndex, DMUS_OBJECTDESC *pDesc)
 767 {
 768         IDirectMusicLoaderImpl *This = impl_from_IDirectMusicLoader8(iface);
 769         DWORD dwCount = 0;
 770         struct list *pEntry;
 771         LPWINE_LOADER_ENTRY pObjectEntry;
 772         TRACE("(%p, %s, %d, %p)\n", This, debugstr_dmguid(rguidClass), dwIndex, pDesc);
 773
 774         DM_STRUCT_INIT(pDesc);
 775
 776         LIST_FOR_EACH (pEntry, This->pObjects) {
 777                 pObjectEntry = LIST_ENTRY (pEntry, WINE_LOADER_ENTRY, entry);
 778
 779                 if (IsEqualGUID (rguidClass, &GUID_DirectMusicAllTypes) || IsEqualGUID (rguidClass, &pObjectEntry->Desc.guidClass)) {
 780                         if (dwCount == dwIndex) {
 781                                 *pDesc = pObjectEntry->Desc;
 782                                 /* we aren't supposed to reveal this info */
 783                                 pDesc->dwValidData &= ~(DMUS_OBJ_MEMORY | DMUS_OBJ_STREAM);
 784                                 pDesc->pbMemData = NULL;
 785                                 pDesc->llMemLength = 0;
 786                                 pDesc->pStream = NULL;
 787                                 return S_OK;
 788                         }
 789                         dwCount++;
 790                 }
 791         }
 792
 793         TRACE(": not found\n");
 794         return S_FALSE;
 795 }
 796
 797 static void WINAPI IDirectMusicLoaderImpl_CollectGarbage(IDirectMusicLoader8 *iface)
 798 {
 799     FIXME("(%p)->(): stub\n", iface);
 800 }
 801
 802 static HRESULT WINAPI IDirectMusicLoaderImpl_ReleaseObjectByUnknown(IDirectMusicLoader8 *iface, IUnknown *pObject)
 803 {
 804         IDirectMusicLoaderImpl *This = impl_from_IDirectMusicLoader8(iface);
 805         HRESULT result;
 806         LPDIRECTMUSICOBJECT pObjectInterface;
 807
 808         TRACE("(%p, %p)\n", This, pObject);
 809
 810         if (IsBadReadPtr (pObject, sizeof(*pObject))) {
 811                 ERR(": pObject bad write pointer\n");
 812                 return E_POINTER;
 813         }
 814         /* we simply get IDirectMusicObject interface */
 815         result = IUnknown_QueryInterface (pObject, &IID_IDirectMusicObject, (LPVOID*)&pObjectInterface);
 816         if (FAILED(result)) return result;
 817         /* and release it in old-fashioned way */
 818         result = IDirectMusicLoader8_ReleaseObject (iface, pObjectInterface);
 819         IDirectMusicObject_Release (pObjectInterface);
 820
 821         return result;
 822 }
 823
 824 static HRESULT WINAPI IDirectMusicLoaderImpl_LoadObjectFromFile(IDirectMusicLoader8 *iface, REFGUID rguidClassID, REFIID iidInterfaceID, WCHAR *pwzFilePath, void **ppObject)
 825 {
 826         IDirectMusicLoaderImpl *This = impl_from_IDirectMusicLoader8(iface);
 827         DMUS_OBJECTDESC ObjDesc;
 828         WCHAR wszLoaderSearchPath[MAX_PATH];
 829
 830         TRACE("(%p, %s, %s, %s, %p): wrapping to IDirectMusicLoaderImpl_GetObject\n", This, debugstr_dmguid(rguidClassID), debugstr_dmguid(iidInterfaceID), debugstr_w(pwzFilePath), ppObject);
 831
 832         DM_STRUCT_INIT(&ObjDesc);
 833         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 */
 834         ObjDesc.guidClass = *rguidClassID;
 835         /* OK, MSDN says that search order is the following:
 836             - current directory (DONE)
 837             - windows search path (FIXME: how do I get that?)
 838             - loader's search path (DONE)
 839         */
 840         DMUSIC_GetLoaderSettings (iface, rguidClassID, wszLoaderSearchPath, NULL);
 841     /* search in current directory */
 842         if (!SearchPathW (NULL, pwzFilePath, NULL, sizeof(ObjDesc.wszFileName)/sizeof(WCHAR), ObjDesc.wszFileName, NULL) &&
 843         /* search in loader's search path */
 844                 !SearchPathW (wszLoaderSearchPath, pwzFilePath, NULL, sizeof(ObjDesc.wszFileName)/sizeof(WCHAR), ObjDesc.wszFileName, NULL)) {
 845                 /* cannot find file */
 846                 TRACE(": cannot find file\n");
 847                 return DMUS_E_LOADER_FAILEDOPEN;
 848         }
 849
 850         TRACE(": full file path = %s\n", debugstr_w (ObjDesc.wszFileName));
 851
 852         return IDirectMusicLoader_GetObject(iface, &ObjDesc, iidInterfaceID, ppObject);
 853 }
 854
 855 static const IDirectMusicLoader8Vtbl DirectMusicLoader_Loader_Vtbl = {
 856     IDirectMusicLoaderImpl_QueryInterface,
 857     IDirectMusicLoaderImpl_AddRef,
 858     IDirectMusicLoaderImpl_Release,
 859     IDirectMusicLoaderImpl_GetObject,
 860     IDirectMusicLoaderImpl_SetObject,
 861     IDirectMusicLoaderImpl_SetSearchDirectory,
 862     IDirectMusicLoaderImpl_ScanDirectory,
 863     IDirectMusicLoaderImpl_CacheObject,
 864     IDirectMusicLoaderImpl_ReleaseObject,
 865     IDirectMusicLoaderImpl_ClearCache,
 866     IDirectMusicLoaderImpl_EnableCache,
 867     IDirectMusicLoaderImpl_EnumObject,
 868     IDirectMusicLoaderImpl_CollectGarbage,
 869     IDirectMusicLoaderImpl_ReleaseObjectByUnknown,
 870     IDirectMusicLoaderImpl_LoadObjectFromFile
 871 };
 872
 873 /* help function for DMUSIC_SetDefaultDLS */
 874 static HRESULT DMUSIC_GetDefaultGMPath (WCHAR wszPath[MAX_PATH]) {
 875         HKEY hkDM;
 876         DWORD returnType, sizeOfReturnBuffer = MAX_PATH;
 877         char szPath[MAX_PATH];
 878
 879         if ((RegOpenKeyExA (HKEY_LOCAL_MACHINE, "Software\\Microsoft\\DirectMusic" , 0, KEY_READ, &hkDM) != ERROR_SUCCESS) ||
 880             (RegQueryValueExA (hkDM, "GMFilePath", NULL, &returnType, (LPBYTE) szPath, &sizeOfReturnBuffer) != ERROR_SUCCESS)) {
 881                 WARN(": registry entry missing\n" );
 882                 return E_FAIL;
 883         }
 884         /* FIXME: Check return types to ensure we're interpreting data right */
 885         MultiByteToWideChar (CP_ACP, 0, szPath, -1, wszPath, MAX_PATH);
 886
 887         return S_OK;
 888 }
 889
 890 /* for ClassFactory */
 891 HRESULT WINAPI create_dmloader(REFIID lpcGUID, void **ppobj)
 892 {
 893         IDirectMusicLoaderImpl *obj;
 894         DMUS_OBJECTDESC Desc;
 895         LPWINE_LOADER_ENTRY pDefaultDLSEntry;
 896         struct list *pEntry;
 897
 898         TRACE("(%s, %p)\n", debugstr_dmguid(lpcGUID), ppobj);
 899         obj = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(IDirectMusicLoaderImpl));
 900         if (NULL == obj) {
 901                 *ppobj = NULL;
 902                 return E_OUTOFMEMORY;
 903         }
 904         obj->IDirectMusicLoader8_iface.lpVtbl = &DirectMusicLoader_Loader_Vtbl;
 905         obj->ref = 0; /* Will be inited with QueryInterface */
 906         /* init cache/alias list */
 907         obj->pObjects = HeapAlloc (GetProcessHeap (), HEAP_ZERO_MEMORY, sizeof(struct list));
 908         list_init (obj->pObjects);
 909         /* init settings */
 910         obj->pClassSettings = HeapAlloc (GetProcessHeap (), HEAP_ZERO_MEMORY, sizeof(struct list));
 911         list_init (obj->pClassSettings);
 912         DMUSIC_InitLoaderSettings(&obj->IDirectMusicLoader8_iface);
 913
 914         /* set default DLS collection (via SetObject... so that loading via DMUS_OBJ_OBJECT is possible) */
 915         DM_STRUCT_INIT(&Desc);
 916         Desc.dwValidData = DMUS_OBJ_CLASS | DMUS_OBJ_FILENAME | DMUS_OBJ_FULLPATH | DMUS_OBJ_OBJECT;
 917         Desc.guidClass = CLSID_DirectMusicCollection;
 918         Desc.guidObject = GUID_DefaultGMCollection;
 919         DMUSIC_GetDefaultGMPath (Desc.wszFileName);
 920         IDirectMusicLoader_SetObject(&obj->IDirectMusicLoader8_iface, &Desc);
 921         /* and now the workaroundTM for "invalid" default DLS; basically,
 922            my tests showed that if GUID chunk is present in default DLS
 923            collection, loader treats it as "invalid" and returns
 924            DMUS_E_LOADER_NOFILENAME for all requests for it; basically, we check
 925            if out input guidObject was overwritten */
 926         pEntry = list_head (obj->pObjects);
 927         pDefaultDLSEntry = LIST_ENTRY (pEntry, WINE_LOADER_ENTRY, entry);
 928         if (!IsEqualGUID(&Desc.guidObject, &GUID_DefaultGMCollection)) {
 929                 pDefaultDLSEntry->bInvalidDefaultDLS = TRUE;
 930         }
 931
 932         lock_module();
 933
 934         return IDirectMusicLoader_QueryInterface(&obj->IDirectMusicLoader8_iface, lpcGUID, ppobj);
 935 }
 936
 937 /* help function for retrieval of search path and caching option for certain class */
 938 static HRESULT DMUSIC_GetLoaderSettings(IDirectMusicLoader8 *iface, REFGUID pClassID, WCHAR *wszSearchPath, BOOL *pbCache)
 939 {
 940         IDirectMusicLoaderImpl *This = impl_from_IDirectMusicLoader8(iface);
 941         struct list *pEntry;
 942         TRACE(": (%p, %s, %p, %p)\n", This, debugstr_dmguid(pClassID), wszSearchPath, pbCache);
 943
 944         LIST_FOR_EACH(pEntry, This->pClassSettings) {
 945                 LPWINE_LOADER_OPTION pOptionEntry = LIST_ENTRY(pEntry, WINE_LOADER_OPTION, entry);
 946                 if (IsEqualCLSID (pClassID, &pOptionEntry->guidClass)) {
 947                         if (wszSearchPath)
 948                                 strcpyW(wszSearchPath, pOptionEntry->wszSearchPath);
 949                         if (pbCache)
 950                                 *pbCache = pOptionEntry->bCache;
 951                         return S_OK;
 952                 }
 953         }
 954         return S_FALSE;
 955 }
 956
 957 /* help function for setting search path and caching option for certain class */
 958 static HRESULT DMUSIC_SetLoaderSettings(IDirectMusicLoader8 *iface, REFGUID pClassID, WCHAR *wszSearchPath, BOOL *pbCache)
 959 {
 960         IDirectMusicLoaderImpl *This = impl_from_IDirectMusicLoader8(iface);
 961         struct list *pEntry;
 962         HRESULT result = S_FALSE; /* in case pClassID != GUID_DirectMusicAllTypes and not a valid CLSID */
 963         TRACE(": (%p, %s, %p, %p)\n", This, debugstr_dmguid(pClassID), wszSearchPath, pbCache);
 964
 965         LIST_FOR_EACH(pEntry, This->pClassSettings) {
 966                 LPWINE_LOADER_OPTION pOptionEntry = LIST_ENTRY(pEntry, WINE_LOADER_OPTION, entry);
 967                 /* well, either we have GUID_DirectMusicAllTypes and need to set it to all,
 968                    or specific CLSID is given and we set it only to it */
 969                 if (IsEqualGUID (pClassID, &GUID_DirectMusicAllTypes) ||
 970                         IsEqualCLSID (pClassID, &pOptionEntry->guidClass)) {
 971                         if (wszSearchPath)
 972                                 strcpyW(pOptionEntry->wszSearchPath, wszSearchPath);
 973                         if (pbCache)
 974                                 pOptionEntry->bCache = *pbCache;
 975                         result = S_OK;
 976                 }
 977         }
 978
 979         return result;
 980 }
 981
 982 static HRESULT DMUSIC_InitLoaderSettings(IDirectMusicLoader8 *iface)
 983 {
 984         IDirectMusicLoaderImpl *This = impl_from_IDirectMusicLoader8(iface);
 985
 986         /* hard-coded list of classes */
 987         static REFCLSID classes[] = {
 988                 &CLSID_DirectMusicAudioPathConfig,
 989                 &CLSID_DirectMusicBand,
 990                 &CLSID_DirectMusicContainer,
 991                 &CLSID_DirectMusicCollection,
 992                 &CLSID_DirectMusicChordMap,
 993                 &CLSID_DirectMusicSegment,
 994                 &CLSID_DirectMusicScript,
 995                 &CLSID_DirectMusicSong,
 996                 &CLSID_DirectMusicStyle,
 997                 &CLSID_DirectMusicGraph,
 998                 &CLSID_DirectSoundWave
 999         };
1000
1001         unsigned int i;
1002         WCHAR wszCurrent[MAX_PATH];
1003
1004         TRACE(": (%p)\n", This);
1005         GetCurrentDirectoryW (MAX_PATH, wszCurrent);
1006
1007         for (i = 0; i < sizeof(classes)/sizeof(REFCLSID); i++) {
1008                 LPWINE_LOADER_OPTION pNewSetting = HeapAlloc (GetProcessHeap (), HEAP_ZERO_MEMORY, sizeof(WINE_LOADER_OPTION));
1009                 pNewSetting->guidClass = *classes[i];
1010                 strcpyW (pNewSetting->wszSearchPath, wszCurrent);
1011                 pNewSetting->bCache = TRUE;
1012                 list_add_tail (This->pClassSettings, &pNewSetting->entry);
1013         }
1014
1015         return S_OK;
1016 }