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