dlls/dmband/bandtrack.c

   1 /* IDirectMusicBandTrack Implementation
   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 "dmband_private.h"
  21 #include "dmobject.h"
  22
  23 WINE_DEFAULT_DEBUG_CHANNEL(dmband);
  24 WINE_DECLARE_DEBUG_CHANNEL(dmfile);
  25
  26 /*****************************************************************************
  27  * IDirectMusicBandTrack implementation
  28  */
  29 typedef struct IDirectMusicBandTrack {
  30     IDirectMusicTrack8 IDirectMusicTrack8_iface;
  31     struct dmobject dmobj; /* IPersistStream only */
  32     LONG ref;
  33     DMUS_IO_BAND_TRACK_HEADER header;
  34     struct list Bands;
  35 } IDirectMusicBandTrack;
  36
  37 /* IDirectMusicBandTrack IDirectMusicTrack8 part: */
  38 static inline IDirectMusicBandTrack *impl_from_IDirectMusicTrack8(IDirectMusicTrack8 *iface)
  39 {
  40     return CONTAINING_RECORD(iface, IDirectMusicBandTrack, IDirectMusicTrack8_iface);
  41 }
  42
  43 static HRESULT WINAPI IDirectMusicTrack8Impl_QueryInterface(IDirectMusicTrack8 *iface, REFIID riid,
  44         void **ret_iface)
  45 {
  46     IDirectMusicBandTrack *This = impl_from_IDirectMusicTrack8(iface);
  47
  48     *ret_iface = NULL;
  49
  50     if (IsEqualIID(riid, &IID_IUnknown) || IsEqualIID(riid, &IID_IDirectMusicTrack) ||
  51             IsEqualIID(riid, &IID_IDirectMusicTrack8))
  52         *ret_iface = iface;
  53     else if (IsEqualIID(riid, &IID_IPersistStream))
  54         *ret_iface = &This->dmobj.IPersistStream_iface;
  55     else {
  56         WARN("(%p, %s, %p): not found\n", This, debugstr_dmguid(riid), ret_iface);
  57         return E_NOINTERFACE;
  58     }
  59
  60     IUnknown_AddRef((IUnknown*)*ret_iface);
  61     return S_OK;
  62 }
  63
  64 static ULONG WINAPI IDirectMusicTrack8Impl_AddRef(IDirectMusicTrack8 *iface)
  65 {
  66     IDirectMusicBandTrack *This = impl_from_IDirectMusicTrack8(iface);
  67     LONG ref = InterlockedIncrement(&This->ref);
  68
  69     TRACE("(%p) ref=%d\n", This, ref);
  70
  71     return ref;
  72 }
  73
  74 static ULONG WINAPI IDirectMusicTrack8Impl_Release(IDirectMusicTrack8 *iface)
  75 {
  76     IDirectMusicBandTrack *This = impl_from_IDirectMusicTrack8(iface);
  77     LONG ref = InterlockedDecrement(&This->ref);
  78
  79     TRACE("(%p) ref=%d\n", This, ref);
  80
  81     if (!ref) {
  82         HeapFree(GetProcessHeap(), 0, This);
  83         DMBAND_UnlockModule();
  84     }
  85
  86     return ref;
  87 }
  88
  89 static HRESULT WINAPI IDirectMusicTrack8Impl_Init(IDirectMusicTrack8 *iface,
  90         IDirectMusicSegment *pSegment)
  91 {
  92   IDirectMusicBandTrack *This = impl_from_IDirectMusicTrack8(iface);
  93   FIXME("(%p, %p): stub\n", This, pSegment);
  94   return S_OK;
  95 }
  96
  97 static HRESULT WINAPI IDirectMusicTrack8Impl_InitPlay(IDirectMusicTrack8 *iface,
  98         IDirectMusicSegmentState *segment_state, IDirectMusicPerformance *performance,
  99         void **state_data, DWORD virtual_track8id, DWORD flags)
 100 {
 101     IDirectMusicBandTrack *This = impl_from_IDirectMusicTrack8(iface);
 102
 103     FIXME("(%p, %p, %p, %p, %d, %x): stub\n", This, segment_state, performance, state_data, virtual_track8id, flags);
 104
 105     return S_OK;
 106 }
 107
 108 static HRESULT WINAPI IDirectMusicTrack8Impl_EndPlay(IDirectMusicTrack8 *iface, void *pStateData)
 109 {
 110   IDirectMusicBandTrack *This = impl_from_IDirectMusicTrack8(iface);
 111   FIXME("(%p, %p): stub\n", This, pStateData);
 112   return S_OK;
 113 }
 114
 115 static HRESULT WINAPI IDirectMusicTrack8Impl_Play(IDirectMusicTrack8 *iface, void *state_data,
 116         MUSIC_TIME mtStart, MUSIC_TIME mtEnd, MUSIC_TIME mtOffset, DWORD flags,
 117         IDirectMusicPerformance *performance, IDirectMusicSegmentState *segment_state,
 118         DWORD virtual_id)
 119 {
 120     IDirectMusicBandTrack *This = impl_from_IDirectMusicTrack8(iface);
 121
 122     FIXME("(%p, %p, %d, %d, %d, %x, %p, %p, %d): semi-stub\n", This, state_data, mtStart, mtEnd, mtOffset, flags, performance, segment_state, virtual_id);
 123
 124     /* Sends following pMSG:
 125        - DMUS_PATCH_PMSG
 126        - DMUS_TRANSPOSE_PMSG
 127        - DMUS_CHANNEL_PRIORITY_PMSG
 128        - DMUS_MIDI_PMSG
 129     */
 130
 131     return S_OK;
 132 }
 133
 134 static HRESULT WINAPI IDirectMusicTrack8Impl_GetParam(IDirectMusicTrack8 *iface, REFGUID rguidType,
 135         MUSIC_TIME mtTime, MUSIC_TIME *pmtNext, void *pParam)
 136 {
 137   IDirectMusicBandTrack *This = impl_from_IDirectMusicTrack8(iface);
 138   FIXME("(%p, %s, %d, %p, %p): stub\n", This, debugstr_dmguid(rguidType), mtTime, pmtNext, pParam);
 139   return S_OK;
 140 }
 141
 142 static HRESULT WINAPI IDirectMusicTrack8Impl_SetParam(IDirectMusicTrack8 *iface, REFGUID rguidType,
 143         MUSIC_TIME mtTime, void *pParam)
 144 {
 145   IDirectMusicBandTrack *This = impl_from_IDirectMusicTrack8(iface);
 146   FIXME("(%p, %s, %d, %p): stub\n", This, debugstr_dmguid(rguidType), mtTime, pParam);
 147   return S_OK;
 148 }
 149
 150 static HRESULT WINAPI IDirectMusicTrack8Impl_IsParamSupported(IDirectMusicTrack8 *iface,
 151         REFGUID rguidType)
 152 {
 153   IDirectMusicBandTrack *This = impl_from_IDirectMusicTrack8(iface);
 154
 155   TRACE("(%p, %s)\n", This, debugstr_dmguid(rguidType));
 156
 157   if (!rguidType)
 158     return E_POINTER;
 159
 160   if (IsEqualGUID (rguidType, &GUID_BandParam)
 161       || IsEqualGUID (rguidType, &GUID_Clear_All_Bands)
 162       || IsEqualGUID (rguidType, &GUID_ConnectToDLSCollection)
 163       || IsEqualGUID (rguidType, &GUID_Disable_Auto_Download)
 164       || IsEqualGUID (rguidType, &GUID_Download)
 165       || IsEqualGUID (rguidType, &GUID_DownloadToAudioPath)
 166       || IsEqualGUID (rguidType, &GUID_Enable_Auto_Download)
 167       || IsEqualGUID (rguidType, &GUID_IDirectMusicBand)
 168       || IsEqualGUID (rguidType, &GUID_StandardMIDIFile)
 169       || IsEqualGUID (rguidType, &GUID_Unload)
 170       || IsEqualGUID (rguidType, &GUID_UnloadFromAudioPath)) {
 171     TRACE("param supported\n");
 172     return S_OK;
 173   }
 174
 175   TRACE("param unsupported\n");
 176   return DMUS_E_TYPE_UNSUPPORTED;
 177 }
 178
 179 static HRESULT WINAPI IDirectMusicTrack8Impl_AddNotificationType(IDirectMusicTrack8 *iface,
 180         REFGUID notiftype)
 181 {
 182     IDirectMusicBandTrack *This = impl_from_IDirectMusicTrack8(iface);
 183
 184     TRACE("(%p, %s): method not implemented\n", This, debugstr_dmguid(notiftype));
 185     return E_NOTIMPL;
 186 }
 187
 188 static HRESULT WINAPI IDirectMusicTrack8Impl_RemoveNotificationType(IDirectMusicTrack8 *iface,
 189         REFGUID notiftype)
 190 {
 191     IDirectMusicBandTrack *This = impl_from_IDirectMusicTrack8(iface);
 192
 193     TRACE("(%p, %s): method not implemented\n", This, debugstr_dmguid(notiftype));
 194     return E_NOTIMPL;
 195 }
 196
 197 static HRESULT WINAPI IDirectMusicTrack8Impl_Clone(IDirectMusicTrack8 *iface, MUSIC_TIME mtStart,
 198         MUSIC_TIME mtEnd, IDirectMusicTrack **ppTrack)
 199 {
 200   IDirectMusicBandTrack *This = impl_from_IDirectMusicTrack8(iface);
 201   FIXME("(%p, %d, %d, %p): stub\n", This, mtStart, mtEnd, ppTrack);
 202   return S_OK;
 203 }
 204
 205 static HRESULT WINAPI IDirectMusicTrack8Impl_PlayEx(IDirectMusicTrack8 *iface, void *state_data,
 206         REFERENCE_TIME rtStart, REFERENCE_TIME rtEnd, REFERENCE_TIME rtOffset, DWORD flags,
 207         IDirectMusicPerformance *performance, IDirectMusicSegmentState *segment_state,
 208         DWORD virtual_id)
 209 {
 210     IDirectMusicBandTrack *This = impl_from_IDirectMusicTrack8(iface);
 211
 212     FIXME("(%p, %p, 0x%s, 0x%s, 0x%s, %x, %p, %p, %d): stub\n", This, state_data, wine_dbgstr_longlong(rtStart),
 213         wine_dbgstr_longlong(rtEnd), wine_dbgstr_longlong(rtOffset), flags, performance, segment_state, virtual_id);
 214
 215     return S_OK;
 216 }
 217
 218 static HRESULT WINAPI IDirectMusicTrack8Impl_GetParamEx(IDirectMusicTrack8 *iface,
 219         REFGUID rguidType, REFERENCE_TIME rtTime, REFERENCE_TIME *rtNext, void *param,
 220         void *state_data, DWORD flags)
 221 {
 222     IDirectMusicBandTrack *This = impl_from_IDirectMusicTrack8(iface);
 223
 224     FIXME("(%p, %s, 0x%s, %p, %p, %p, %x): stub\n", This, debugstr_dmguid(rguidType),
 225         wine_dbgstr_longlong(rtTime), rtNext, param, state_data, flags);
 226
 227     return S_OK;
 228 }
 229
 230 static HRESULT WINAPI IDirectMusicTrack8Impl_SetParamEx(IDirectMusicTrack8 *iface,
 231         REFGUID rguidType, REFERENCE_TIME rtTime, void *param, void *state_data, DWORD flags)
 232 {
 233     IDirectMusicBandTrack *This = impl_from_IDirectMusicTrack8(iface);
 234
 235     FIXME("(%p, %s, 0x%s, %p, %p, %x): stub\n", This, debugstr_dmguid(rguidType),
 236         wine_dbgstr_longlong(rtTime), param, state_data, flags);
 237
 238     return S_OK;
 239 }
 240
 241 static HRESULT WINAPI IDirectMusicTrack8Impl_Compose(IDirectMusicTrack8 *iface, IUnknown *context,
 242         DWORD trackgroup, IDirectMusicTrack **track)
 243 {
 244     IDirectMusicBandTrack *This = impl_from_IDirectMusicTrack8(iface);
 245
 246     TRACE("(%p, %p, %d, %p): method not implemented\n", This, context, trackgroup, track);
 247     return E_NOTIMPL;
 248 }
 249
 250 static HRESULT WINAPI IDirectMusicTrack8Impl_Join(IDirectMusicTrack8 *iface,
 251         IDirectMusicTrack *pNewTrack, MUSIC_TIME mtJoin, IUnknown *pContext, DWORD dwTrackGroup,
 252         IDirectMusicTrack **ppResultTrack)
 253 {
 254   IDirectMusicBandTrack *This = impl_from_IDirectMusicTrack8(iface);
 255   FIXME("(%p, %p, %d, %p, %d, %p): stub\n", This, pNewTrack, mtJoin, pContext, dwTrackGroup, ppResultTrack);
 256   return S_OK;
 257 }
 258
 259 static const IDirectMusicTrack8Vtbl dmtrack8_vtbl = {
 260     IDirectMusicTrack8Impl_QueryInterface,
 261     IDirectMusicTrack8Impl_AddRef,
 262     IDirectMusicTrack8Impl_Release,
 263     IDirectMusicTrack8Impl_Init,
 264     IDirectMusicTrack8Impl_InitPlay,
 265     IDirectMusicTrack8Impl_EndPlay,
 266     IDirectMusicTrack8Impl_Play,
 267     IDirectMusicTrack8Impl_GetParam,
 268     IDirectMusicTrack8Impl_SetParam,
 269     IDirectMusicTrack8Impl_IsParamSupported,
 270     IDirectMusicTrack8Impl_AddNotificationType,
 271     IDirectMusicTrack8Impl_RemoveNotificationType,
 272     IDirectMusicTrack8Impl_Clone,
 273     IDirectMusicTrack8Impl_PlayEx,
 274     IDirectMusicTrack8Impl_GetParamEx,
 275     IDirectMusicTrack8Impl_SetParamEx,
 276     IDirectMusicTrack8Impl_Compose,
 277     IDirectMusicTrack8Impl_Join
 278 };
 279
 280 /* IDirectMusicBandTrack IPersistStream part: */
 281 static HRESULT load_band(IDirectMusicBandTrack *This, IStream *pClonedStream,
 282         IDirectMusicBand **ppBand, DMUS_PRIVATE_BAND_ITEM_HEADER *pHeader)
 283 {
 284   HRESULT hr = E_FAIL;
 285   IPersistStream* pPersistStream = NULL;
 286
 287   hr = CoCreateInstance (&CLSID_DirectMusicBand, NULL, CLSCTX_INPROC_SERVER, &IID_IDirectMusicBand, (LPVOID*) ppBand);
 288   if (FAILED(hr)) {
 289     ERR(": could not create object\n");
 290     return hr;
 291   }
 292   /* acquire PersistStream interface */
 293   hr = IDirectMusicBand_QueryInterface (*ppBand, &IID_IPersistStream, (LPVOID*) &pPersistStream);
 294   if (FAILED(hr)) {
 295     ERR(": could not acquire IPersistStream\n");
 296     return hr;
 297   }
 298   /* load */
 299   hr = IPersistStream_Load (pPersistStream, pClonedStream);
 300   if (FAILED(hr)) {
 301     ERR(": failed to load object\n");
 302     return hr;
 303   }
 304
 305   /* release all loading-related stuff */
 306   IPersistStream_Release (pPersistStream);
 307
 308   /*
 309    * @TODO insert pBand into This
 310    */
 311   if (SUCCEEDED(hr)) {
 312     LPDMUS_PRIVATE_BAND pNewBand = HeapAlloc (GetProcessHeap (), HEAP_ZERO_MEMORY, sizeof(DMUS_PRIVATE_BAND));
 313     if (NULL == pNewBand) {
 314       ERR(": no more memory\n");
 315       return  E_OUTOFMEMORY;
 316     }
 317     pNewBand->BandHeader = *pHeader;
 318     pNewBand->band = *ppBand;
 319     IDirectMusicBand_AddRef(*ppBand);
 320     list_add_tail (&This->Bands, &pNewBand->entry);
 321   }
 322
 323   return S_OK;
 324 }
 325
 326 static HRESULT parse_bands_list(IDirectMusicBandTrack *This, DMUS_PRIVATE_CHUNK *pChunk,
 327         IStream *pStm)
 328 {
 329   HRESULT hr = E_FAIL;
 330   DMUS_PRIVATE_CHUNK Chunk;
 331   DWORD StreamSize, ListSize[3], ListCount[3];
 332   LARGE_INTEGER liMove; /* used when skipping chunks */
 333
 334   IDirectMusicBand* pBand = NULL;
 335   DMUS_PRIVATE_BAND_ITEM_HEADER header;
 336
 337   memset(&header, 0, sizeof header);
 338
 339   if (pChunk->fccID != DMUS_FOURCC_BANDS_LIST) {
 340     ERR_(dmfile)(": %s chunk should be a BANDS list\n", debugstr_fourcc (pChunk->fccID));
 341     return E_FAIL;
 342   }
 343
 344   ListSize[0] = pChunk->dwSize - sizeof(FOURCC);
 345   ListCount[0] = 0;
 346
 347   do {
 348     IStream_Read (pStm, &Chunk, sizeof(FOURCC)+sizeof(DWORD), NULL);
 349     ListCount[0] += sizeof(FOURCC) + sizeof(DWORD) + Chunk.dwSize;
 350     TRACE_(dmfile)(": %s chunk (size = %d)", debugstr_fourcc (Chunk.fccID), Chunk.dwSize);
 351     switch (Chunk.fccID) {
 352     case FOURCC_LIST: {
 353       IStream_Read (pStm, &Chunk.fccID, sizeof(FOURCC), NULL);
 354       TRACE_(dmfile)(": LIST chunk of type %s", debugstr_fourcc(Chunk.fccID));
 355       ListSize[1] = Chunk.dwSize - sizeof(FOURCC);
 356       ListCount[1] = 0;
 357       do {
 358         IStream_Read (pStm, &Chunk, sizeof(FOURCC)+sizeof(DWORD), NULL);
 359         ListCount[1] += sizeof(FOURCC) + sizeof(DWORD) + Chunk.dwSize;
 360         TRACE_(dmfile)(": %s chunk (size = %d)", debugstr_fourcc (Chunk.fccID), Chunk.dwSize);
 361         switch (Chunk.fccID) {
 362         case DMUS_FOURCC_BANDITEM_CHUNK: {
 363           DMUS_IO_BAND_ITEM_HEADER tmp_header;
 364           TRACE_(dmfile)(": Band Item chunk v1\n");
 365
 366           IStream_Read (pStm, &tmp_header, sizeof(DMUS_IO_BAND_ITEM_HEADER), NULL);
 367           TRACE_(dmfile)(" - lBandTime: %u\n", tmp_header.lBandTime);
 368
 369           header.dwVersion = 1;
 370           header.lBandTime = tmp_header.lBandTime;
 371           break;
 372         }
 373         case DMUS_FOURCC_BANDITEM_CHUNK2: {
 374           DMUS_IO_BAND_ITEM_HEADER2 tmp_header2;
 375           TRACE_(dmfile)(": Band Item chunk v2\n");
 376
 377           IStream_Read (pStm, &tmp_header2, sizeof(DMUS_IO_BAND_ITEM_HEADER2), NULL);
 378           TRACE_(dmfile)(" - lBandTimeLogical: %u\n", tmp_header2.lBandTimeLogical);
 379           TRACE_(dmfile)(" - lBandTimePhysical: %u\n", tmp_header2.lBandTimePhysical);
 380
 381           header.dwVersion = 2;
 382           header.lBandTimeLogical = tmp_header2.lBandTimeLogical;
 383           header.lBandTimePhysical = tmp_header2.lBandTimePhysical;
 384           break;
 385         }
 386         case FOURCC_RIFF: {
 387           IStream_Read (pStm, &Chunk.fccID, sizeof(FOURCC), NULL);
 388           TRACE_(dmfile)(": RIFF chunk of type %s\n", debugstr_fourcc(Chunk.fccID));
 389           StreamSize = Chunk.dwSize - sizeof(FOURCC);
 390           switch (Chunk.fccID) {
 391           case DMUS_FOURCC_BAND_FORM: {
 392             LPSTREAM pClonedStream = NULL;
 393             TRACE_(dmfile)(": BAND RIFF\n");
 394
 395             IStream_Clone (pStm, &pClonedStream);
 396
 397             liMove.QuadPart = 0;
 398             liMove.QuadPart -= sizeof(FOURCC) + (sizeof(FOURCC)+sizeof(DWORD));
 399             IStream_Seek (pClonedStream, liMove, STREAM_SEEK_CUR, NULL);
 400
 401             hr = load_band(This, pClonedStream, &pBand, &header);
 402             if (FAILED(hr)) {
 403               ERR(": could not load track\n");
 404               return hr;
 405             }
 406             IStream_Release (pClonedStream);
 407
 408             IDirectMusicTrack_Release(pBand); pBand = NULL; /* now we can release at as it inserted */
 409
 410             /** now safe move the cursor */
 411             liMove.QuadPart = StreamSize;
 412             IStream_Seek (pStm, liMove, STREAM_SEEK_CUR, NULL);
 413             break;
 414           }
 415           default: {
 416             TRACE_(dmfile)(": unknown chunk (irrelevant & skipping)\n");
 417             liMove.QuadPart = StreamSize;
 418             IStream_Seek (pStm, liMove, STREAM_SEEK_CUR, NULL);
 419             break;
 420           }
 421           }
 422           break;
 423         }
 424         default: {
 425           TRACE_(dmfile)(": unknown chunk (irrelevant & skipping)\n");
 426           liMove.QuadPart = Chunk.dwSize;
 427           IStream_Seek (pStm, liMove, STREAM_SEEK_CUR, NULL);
 428           break;
 429          }
 430         }
 431         TRACE_(dmfile)(": ListCount[1] = %d < ListSize[1] = %d\n", ListCount[1], ListSize[1]);
 432       } while (ListCount[1] < ListSize[1]);
 433       break;
 434     }
 435     default: {
 436       TRACE_(dmfile)(": unknown chunk (irrelevant & skipping)\n");
 437       liMove.QuadPart = Chunk.dwSize;
 438       IStream_Seek (pStm, liMove, STREAM_SEEK_CUR, NULL);
 439       break;
 440     }
 441     }
 442     TRACE_(dmfile)(": ListCount[0] = %d < ListSize[0] = %d\n", ListCount[0], ListSize[0]);
 443   } while (ListCount[0] < ListSize[0]);
 444
 445   return S_OK;
 446 }
 447
 448 static HRESULT parse_bandtrack_form(IDirectMusicBandTrack *This, DMUS_PRIVATE_CHUNK *pChunk,
 449         IStream *pStm)
 450 {
 451   HRESULT hr = E_FAIL;
 452   DMUS_PRIVATE_CHUNK Chunk;
 453   DWORD StreamSize, StreamCount, ListSize[3], ListCount[3];
 454   LARGE_INTEGER liMove; /* used when skipping chunks */
 455
 456   if (pChunk->fccID != DMUS_FOURCC_BANDTRACK_FORM) {
 457     ERR_(dmfile)(": %s chunk should be a BANDTRACK form\n", debugstr_fourcc (pChunk->fccID));
 458     return E_FAIL;
 459   }
 460
 461   StreamSize = pChunk->dwSize - sizeof(FOURCC);
 462   StreamCount = 0;
 463
 464   do {
 465     IStream_Read (pStm, &Chunk, sizeof(FOURCC)+sizeof(DWORD), NULL);
 466     StreamCount += sizeof(FOURCC) + sizeof(DWORD) + Chunk.dwSize;
 467     TRACE_(dmfile)(": %s chunk (size = %d)", debugstr_fourcc (Chunk.fccID), Chunk.dwSize);
 468
 469     hr = IDirectMusicUtils_IPersistStream_ParseDescGeneric(&Chunk, pStm, &This->dmobj.desc);
 470     if (FAILED(hr)) return hr;
 471
 472     if (hr == S_FALSE) {
 473       switch (Chunk.fccID) {
 474       case DMUS_FOURCC_BANDTRACK_CHUNK: {
 475         TRACE_(dmfile)(": BandTrack chunk\n");
 476         IStream_Read (pStm, &This->header, sizeof(DMUS_IO_BAND_TRACK_HEADER), NULL);
 477         TRACE_(dmfile)(" - bAutoDownload: %u\n", This->header.bAutoDownload);
 478         break;
 479       }
 480       case FOURCC_LIST: {
 481         IStream_Read (pStm, &Chunk.fccID, sizeof(FOURCC), NULL);
 482         TRACE_(dmfile)(": LIST chunk of type %s", debugstr_fourcc(Chunk.fccID));
 483         ListSize[0] = Chunk.dwSize - sizeof(FOURCC);
 484         ListCount[0] = 0;
 485         switch (Chunk.fccID) {
 486         case DMUS_FOURCC_UNFO_LIST: {
 487           TRACE_(dmfile)(": UNFO list\n");
 488           do {
 489             IStream_Read (pStm, &Chunk, sizeof(FOURCC)+sizeof(DWORD), NULL);
 490             ListCount[0] += sizeof(FOURCC) + sizeof(DWORD) + Chunk.dwSize;
 491             TRACE_(dmfile)(": %s chunk (size = %d)", debugstr_fourcc (Chunk.fccID), Chunk.dwSize);
 492
 493             hr = IDirectMusicUtils_IPersistStream_ParseUNFOGeneric(&Chunk, pStm, &This->dmobj.desc);
 494             if (FAILED(hr)) return hr;
 495
 496             if (hr == S_FALSE) {
 497               switch (Chunk.fccID) {
 498               default: {
 499                 TRACE_(dmfile)(": unknown chunk (irrelevant & skipping)\n");
 500                 liMove.QuadPart = Chunk.dwSize;
 501                 IStream_Seek (pStm, liMove, STREAM_SEEK_CUR, NULL);
 502                 break;
 503               }
 504               }
 505             }
 506             TRACE_(dmfile)(": ListCount[0] = %d < ListSize[0] = %d\n", ListCount[0], ListSize[0]);
 507           } while (ListCount[0] < ListSize[0]);
 508           break;
 509         }
 510         case DMUS_FOURCC_BANDS_LIST: {
 511           TRACE_(dmfile)(": TRACK list\n");
 512           hr = parse_bands_list(This, &Chunk, pStm);
 513           if (FAILED(hr)) return hr;
 514           break;
 515         }
 516         default: {
 517           TRACE_(dmfile)(": unknown (skipping)\n");
 518           liMove.QuadPart = Chunk.dwSize - sizeof(FOURCC);
 519           IStream_Seek (pStm, liMove, STREAM_SEEK_CUR, NULL);
 520           break;
 521         }
 522         }
 523         break;
 524       }
 525       default: {
 526         TRACE_(dmfile)(": unknown chunk (irrelevant & skipping)\n");
 527         liMove.QuadPart = Chunk.dwSize;
 528         IStream_Seek (pStm, liMove, STREAM_SEEK_CUR, NULL);
 529         break;
 530       }
 531       }
 532     }
 533     TRACE_(dmfile)(": StreamCount[0] = %d < StreamSize[0] = %d\n", StreamCount, StreamSize);
 534   } while (StreamCount < StreamSize);
 535
 536   return S_OK;
 537 }
 538
 539 static inline IDirectMusicBandTrack *impl_from_IPersistStream(IPersistStream *iface)
 540 {
 541     return CONTAINING_RECORD(iface, IDirectMusicBandTrack, dmobj.IPersistStream_iface);
 542 }
 543
 544 static HRESULT WINAPI IPersistStreamImpl_Load(IPersistStream *iface, IStream *pStm)
 545 {
 546   IDirectMusicBandTrack *This = impl_from_IPersistStream(iface);
 547   DMUS_PRIVATE_CHUNK Chunk;
 548   LARGE_INTEGER liMove;
 549   HRESULT hr;
 550
 551   TRACE("(%p, %p): Loading\n", This, pStm);
 552
 553   IStream_Read (pStm, &Chunk, sizeof(FOURCC)+sizeof(DWORD), NULL);
 554   TRACE_(dmfile)(": %s chunk (size = %d)", debugstr_fourcc (Chunk.fccID), Chunk.dwSize);
 555   switch (Chunk.fccID) {
 556   case FOURCC_RIFF: {
 557     IStream_Read (pStm, &Chunk.fccID, sizeof(FOURCC), NULL);
 558     TRACE_(dmfile)(": %s chunk (size = %d)", debugstr_fourcc (Chunk.fccID), Chunk.dwSize);
 559     switch (Chunk.fccID) {
 560     case DMUS_FOURCC_BANDTRACK_FORM: {
 561       TRACE_(dmfile)(": Band track form\n");
 562       hr = parse_bandtrack_form(This, &Chunk, pStm);
 563       if (FAILED(hr)) return hr;
 564       break;
 565     }
 566     default: {
 567       TRACE_(dmfile)(": unexpected chunk; loading failed)\n");
 568       liMove.QuadPart = Chunk.dwSize;
 569       IStream_Seek (pStm, liMove, STREAM_SEEK_CUR, NULL);
 570       return E_FAIL;
 571     }
 572     }
 573     TRACE_(dmfile)(": reading finished\n");
 574     break;
 575   }
 576   default: {
 577     TRACE_(dmfile)(": unexpected chunk; loading failed)\n");
 578     liMove.QuadPart = Chunk.dwSize;
 579     IStream_Seek (pStm, liMove, STREAM_SEEK_CUR, NULL); /* skip the rest of the chunk */
 580     return E_FAIL;
 581   }
 582   }
 583
 584   return S_OK;
 585 }
 586
 587 static const IPersistStreamVtbl persiststream_vtbl = {
 588     dmobj_IPersistStream_QueryInterface,
 589     dmobj_IPersistStream_AddRef,
 590     dmobj_IPersistStream_Release,
 591     dmobj_IPersistStream_GetClassID,
 592     unimpl_IPersistStream_IsDirty,
 593     IPersistStreamImpl_Load,
 594     unimpl_IPersistStream_Save,
 595     unimpl_IPersistStream_GetSizeMax
 596 };
 597
 598 /* for ClassFactory */
 599 HRESULT WINAPI create_dmbandtrack(REFIID lpcGUID, void **ppobj)
 600 {
 601     IDirectMusicBandTrack *track;
 602     HRESULT hr;
 603
 604     track = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(*track));
 605     if (!track) {
 606         *ppobj = NULL;
 607         return E_OUTOFMEMORY;
 608     }
 609     track->IDirectMusicTrack8_iface.lpVtbl = &dmtrack8_vtbl;
 610     track->ref = 1;
 611     dmobject_init(&track->dmobj, &CLSID_DirectMusicBandTrack,
 612             (IUnknown *)&track->IDirectMusicTrack8_iface);
 613     track->dmobj.IPersistStream_iface.lpVtbl = &persiststream_vtbl;
 614     list_init (&track->Bands);
 615
 616     DMBAND_LockModule();
 617     hr = IDirectMusicTrack8_QueryInterface(&track->IDirectMusicTrack8_iface, lpcGUID, ppobj);
 618     IDirectMusicTrack8_Release(&track->IDirectMusicTrack8_iface);
 619
 620     return hr;
 621 }