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   1 /* IDirectMusicTempoTrack Implementation
   2  *
   3  * Copyright (C) 2003-2004 Rok Mandeljc
   4  * Copyright (C) 2004 Raphael Junqueira
   5  *
   6  * This program is free software; you can redistribute it and/or modify
   7  * it under the terms of the GNU General Public License as published by
   8  * the Free Software Foundation; either version 2 of the License, or
   9  * (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
  14  * GNU Library General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU General Public License
  17  * along with this program; if not, write to the Free Software
  18  * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
  19  */
  20
  21 #include "dmime_private.h"
  22
  23 WINE_DEFAULT_DEBUG_CHANNEL(dmime);
  24 WINE_DECLARE_DEBUG_CHANNEL(dmfile);
  25
  26 /*****************************************************************************
  27  * IDirectMusicTempoTrack implementation
  28  */
  29 /* IDirectMusicTempoTrack IUnknown part: */
  30 HRESULT WINAPI IDirectMusicTempoTrack_IUnknown_QueryInterface (LPUNKNOWN iface, REFIID riid, LPVOID *ppobj) {
  31   ICOM_THIS_MULTI(IDirectMusicTempoTrack, UnknownVtbl, iface);
  32   TRACE("(%p, %s, %p)\n", This, debugstr_dmguid(riid), ppobj);
  33
  34   if (IsEqualIID (riid, &IID_IUnknown)) {
  35     *ppobj = (LPUNKNOWN)&This->UnknownVtbl;
  36     IDirectMusicTempoTrack_IUnknown_AddRef ((LPUNKNOWN)&This->UnknownVtbl);
  37     return S_OK;
  38   } else if (IsEqualIID (riid, &IID_IDirectMusicTrack)
  39              || IsEqualIID (riid, &IID_IDirectMusicTrack8)) {
  40     *ppobj = (LPDIRECTMUSICTRACK8)&This->TrackVtbl;
  41     IDirectMusicTempoTrack_IDirectMusicTrack_AddRef ((LPDIRECTMUSICTRACK8)&This->TrackVtbl);
  42     return S_OK;
  43   } else if (IsEqualIID (riid, &IID_IPersistStream)) {
  44     *ppobj = (LPPERSISTSTREAM)&This->PersistStreamVtbl;
  45     IDirectMusicTempoTrack_IPersistStream_AddRef ((LPPERSISTSTREAM)&This->PersistStreamVtbl);
  46     return S_OK;
  47   }
  48
  49   WARN("(%p, %s, %p): not found\n", This, debugstr_dmguid(riid), ppobj);
  50   return E_NOINTERFACE;
  51 }
  52
  53 ULONG WINAPI IDirectMusicTempoTrack_IUnknown_AddRef (LPUNKNOWN iface) {
  54   ICOM_THIS_MULTI(IDirectMusicTempoTrack, UnknownVtbl, iface);
  55   TRACE("(%p): AddRef from %ld\n", This, This->ref);
  56   return ++(This->ref);
  57 }
  58
  59 ULONG WINAPI IDirectMusicTempoTrack_IUnknown_Release (LPUNKNOWN iface) {
  60   ICOM_THIS_MULTI(IDirectMusicTempoTrack, UnknownVtbl, iface);
  61   ULONG ref = --This->ref;
  62   TRACE("(%p): ReleaseRef to %ld\n", This, This->ref);
  63   if (ref == 0) {
  64     HeapFree(GetProcessHeap(), 0, This);
  65   }
  66   return ref;
  67 }
  68
  69 ICOM_VTABLE(IUnknown) DirectMusicTempoTrack_Unknown_Vtbl = {
  70   ICOM_MSVTABLE_COMPAT_DummyRTTIVALUE
  71   IDirectMusicTempoTrack_IUnknown_QueryInterface,
  72   IDirectMusicTempoTrack_IUnknown_AddRef,
  73   IDirectMusicTempoTrack_IUnknown_Release
  74 };
  75
  76 /* IDirectMusicTempoTrack IDirectMusicTrack8 part: */
  77 HRESULT WINAPI IDirectMusicTempoTrack_IDirectMusicTrack_QueryInterface (LPDIRECTMUSICTRACK8 iface, REFIID riid, LPVOID *ppobj) {
  78   ICOM_THIS_MULTI(IDirectMusicTempoTrack, TrackVtbl, iface);
  79   return IDirectMusicTempoTrack_IUnknown_QueryInterface ((LPUNKNOWN)&This->UnknownVtbl, riid, ppobj);
  80 }
  81
  82 ULONG WINAPI IDirectMusicTempoTrack_IDirectMusicTrack_AddRef (LPDIRECTMUSICTRACK8 iface) {
  83   ICOM_THIS_MULTI(IDirectMusicTempoTrack, TrackVtbl, iface);
  84   return IDirectMusicTempoTrack_IUnknown_AddRef ((LPUNKNOWN)&This->UnknownVtbl);
  85 }
  86
  87 ULONG WINAPI IDirectMusicTempoTrack_IDirectMusicTrack_Release (LPDIRECTMUSICTRACK8 iface) {
  88   ICOM_THIS_MULTI(IDirectMusicTempoTrack, TrackVtbl, iface);
  89   return IDirectMusicTempoTrack_IUnknown_Release ((LPUNKNOWN)&This->UnknownVtbl);
  90 }
  91
  92 HRESULT WINAPI IDirectMusicTempoTrack_IDirectMusicTrack_Init (LPDIRECTMUSICTRACK8 iface, IDirectMusicSegment* pSegment)
  93 {
  94   ICOM_THIS_MULTI(IDirectMusicTempoTrack, TrackVtbl, iface);
  95   TRACE("(%p, %p): nothing to do here\n", This, pSegment);
  96   return S_OK;
  97 }
  98
  99 HRESULT WINAPI IDirectMusicTempoTrack_IDirectMusicTrack_InitPlay (LPDIRECTMUSICTRACK8 iface, IDirectMusicSegmentState* pSegmentState, IDirectMusicPerformance* pPerformance, void** ppStateData, DWORD dwVirtualTrack8ID, DWORD dwFlags)
 100 {
 101   ICOM_THIS_MULTI(IDirectMusicTempoTrack, TrackVtbl, iface);
 102
 103   LPDMUS_PRIVATE_TEMPO_PLAY_STATE pState = NULL;
 104
 105   FIXME("(%p, %p, %p, %p, %ld, %ld): semi-stub\n", This, pSegmentState, pPerformance, ppStateData, dwVirtualTrack8ID, dwFlags);
 106
 107   pState = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(DMUS_PRIVATE_TEMPO_PLAY_STATE));
 108   if (NULL == pState) {
 109     ERR(": no more memory\n");
 110     return E_OUTOFMEMORY;
 111   }
 112   /** TODO real fill usefull datas */
 113   pState->dummy = 0;
 114   *ppStateData = pState;
 115   return S_OK;
 116 }
 117
 118 HRESULT WINAPI IDirectMusicTempoTrack_IDirectMusicTrack_EndPlay (LPDIRECTMUSICTRACK8 iface, void* pStateData)
 119 {
 120   ICOM_THIS_MULTI(IDirectMusicTempoTrack, TrackVtbl, iface);
 121
 122   LPDMUS_PRIVATE_TEMPO_PLAY_STATE pState = pStateData;
 123
 124   FIXME("(%p, %p): semi-stub\n", This, pStateData);
 125
 126   if (NULL == pStateData) {
 127     return E_POINTER;
 128   }
 129   /** TODO real clean up */
 130   HeapFree(GetProcessHeap(), 0, pState);
 131   return S_OK;
 132 }
 133
 134 HRESULT WINAPI IDirectMusicTempoTrack_IDirectMusicTrack_Play (LPDIRECTMUSICTRACK8 iface, void* pStateData, MUSIC_TIME mtStart, MUSIC_TIME mtEnd, MUSIC_TIME mtOffset, DWORD dwFlags, IDirectMusicPerformance* pPerf, IDirectMusicSegmentState* pSegSt, DWORD dwVirtualID)
 135 {
 136   ICOM_THIS_MULTI(IDirectMusicTempoTrack, TrackVtbl, iface);
 137   FIXME("(%p, %p, %ld, %ld, %ld, %ld, %p, %p, %ld): stub\n", This, pStateData, mtStart, mtEnd, mtOffset, dwFlags, pPerf, pSegSt, dwVirtualID);
 138   /** should use IDirectMusicPerformance_SendPMsg here */
 139   return S_OK;
 140 }
 141
 142 HRESULT WINAPI IDirectMusicTempoTrack_IDirectMusicTrack_GetParam (LPDIRECTMUSICTRACK8 iface, REFGUID rguidType, MUSIC_TIME mtTime, MUSIC_TIME* pmtNext, void* pParam) {
 143   ICOM_THIS_MULTI(IDirectMusicTempoTrack, TrackVtbl, iface);
 144
 145   HRESULT hr = S_OK;
 146   struct list* pEntry = NULL;
 147   LPDMUS_PRIVATE_TEMPO_ITEM pIt = NULL;
 148   DMUS_TEMPO_PARAM* prm = pParam;
 149
 150   FIXME("(%p, %s, %ld, %p, %p): almost stub\n", This, debugstr_dmguid(rguidType), mtTime, pmtNext, pParam);
 151
 152   if (NULL == pParam) {
 153     return E_POINTER;
 154   }
 155
 156   hr = IDirectMusicTempoTrack_IDirectMusicTrack_IsParamSupported (iface, rguidType);
 157   if (FAILED(hr)) {
 158     return hr;
 159   }
 160   if (FALSE == This->enabled) {
 161     return DMUS_E_TYPE_DISABLED;
 162   }
 163
 164   if (NULL != pmtNext) *pmtNext = 0;
 165   prm->mtTime = 0;
 166   prm->dblTempo = 0.123456;
 167
 168   LIST_FOR_EACH (pEntry, &This->Items) {
 169     pIt = LIST_ENTRY(pEntry, DMUS_PRIVATE_TEMPO_ITEM, entry);
 170     /*TRACE(" - %p -> 0x%lx,%p\n", pIt, pIt->item.lTime, pIt->item.dblTempo);*/
 171     if (pIt->item.lTime <= mtTime) {
 172       MUSIC_TIME ofs = pIt->item.lTime - mtTime;
 173       if (ofs > prm->mtTime) {
 174         prm->mtTime = ofs;
 175         prm->dblTempo = pIt->item.dblTempo;
 176       }
 177       if (NULL != pmtNext && pIt->item.lTime > mtTime) {
 178         if (pIt->item.lTime < *pmtNext) {
 179           *pmtNext = pIt->item.lTime;
 180         }
 181       }
 182     }
 183   }
 184
 185   if (0.123456 == prm->dblTempo) {
 186     return DMUS_E_NOT_FOUND;
 187   }
 188   return S_OK;
 189 }
 190
 191 HRESULT WINAPI IDirectMusicTempoTrack_IDirectMusicTrack_SetParam (LPDIRECTMUSICTRACK8 iface, REFGUID rguidType, MUSIC_TIME mtTime, void* pParam) {
 192         ICOM_THIS_MULTI(IDirectMusicTempoTrack, TrackVtbl, iface);
 193         FIXME("(%p, %s, %ld, %p): stub\n", This, debugstr_dmguid(rguidType), mtTime, pParam);
 194         return S_OK;
 195 }
 196
 197 HRESULT WINAPI IDirectMusicTempoTrack_IDirectMusicTrack_IsParamSupported (LPDIRECTMUSICTRACK8 iface, REFGUID rguidType) {
 198   ICOM_THIS_MULTI(IDirectMusicTempoTrack, TrackVtbl, iface);
 199
 200   TRACE("(%p, %s): ", This, debugstr_dmguid(rguidType));
 201   if (IsEqualGUID (rguidType, &GUID_DisableTempo)
 202       || IsEqualGUID (rguidType, &GUID_EnableTempo)
 203       || IsEqualGUID (rguidType, &GUID_TempoParam)) {
 204     TRACE("param supported\n");
 205     return S_OK;
 206   }
 207   if (FALSE == This->enabled) {
 208     return DMUS_E_TYPE_DISABLED;
 209   }
 210   TRACE("param unsupported\n");
 211   return DMUS_E_TYPE_UNSUPPORTED;
 212 }
 213
 214 HRESULT WINAPI IDirectMusicTempoTrack_IDirectMusicTrack_AddNotificationType (LPDIRECTMUSICTRACK8 iface, REFGUID rguidNotificationType) {
 215   ICOM_THIS_MULTI(IDirectMusicTempoTrack, TrackVtbl, iface);
 216   FIXME("(%p, %s): stub\n", This, debugstr_dmguid(rguidNotificationType));
 217   return S_OK;
 218 }
 219
 220 HRESULT WINAPI IDirectMusicTempoTrack_IDirectMusicTrack_RemoveNotificationType (LPDIRECTMUSICTRACK8 iface, REFGUID rguidNotificationType) {
 221   ICOM_THIS_MULTI(IDirectMusicTempoTrack, TrackVtbl, iface);
 222   FIXME("(%p, %s): stub\n", This, debugstr_dmguid(rguidNotificationType));
 223   return S_OK;
 224 }
 225
 226 HRESULT WINAPI IDirectMusicTempoTrack_IDirectMusicTrack_Clone (LPDIRECTMUSICTRACK8 iface, MUSIC_TIME mtStart, MUSIC_TIME mtEnd, IDirectMusicTrack** ppTrack) {
 227   ICOM_THIS_MULTI(IDirectMusicTempoTrack, TrackVtbl, iface);
 228   FIXME("(%p, %ld, %ld, %p): stub\n", This, mtStart, mtEnd, ppTrack);
 229   return S_OK;
 230 }
 231
 232 HRESULT WINAPI IDirectMusicTempoTrack_IDirectMusicTrack_PlayEx (LPDIRECTMUSICTRACK8 iface, void* pStateData, REFERENCE_TIME rtStart, REFERENCE_TIME rtEnd, REFERENCE_TIME rtOffset, DWORD dwFlags, IDirectMusicPerformance* pPerf, IDirectMusicSegmentState* pSegSt, DWORD dwVirtualID) {
 233   ICOM_THIS_MULTI(IDirectMusicTempoTrack, TrackVtbl, iface);
 234   FIXME("(%p, %p, %lli, %lli, %lli, %ld, %p, %p, %ld): stub\n", This, pStateData, rtStart, rtEnd, rtOffset, dwFlags, pPerf, pSegSt, dwVirtualID);
 235   return S_OK;
 236 }
 237
 238 HRESULT WINAPI IDirectMusicTempoTrack_IDirectMusicTrack_GetParamEx (LPDIRECTMUSICTRACK8 iface, REFGUID rguidType, REFERENCE_TIME rtTime, REFERENCE_TIME* prtNext, void* pParam, void* pStateData, DWORD dwFlags) {
 239   ICOM_THIS_MULTI(IDirectMusicTempoTrack, TrackVtbl, iface);
 240   FIXME("(%p, %s, %lli, %p, %p, %p, %ld): stub\n", This, debugstr_dmguid(rguidType), rtTime, prtNext, pParam, pStateData, dwFlags);
 241   return S_OK;
 242 }
 243
 244 HRESULT WINAPI IDirectMusicTempoTrack_IDirectMusicTrack_SetParamEx (LPDIRECTMUSICTRACK8 iface, REFGUID rguidType, REFERENCE_TIME rtTime, void* pParam, void* pStateData, DWORD dwFlags) {
 245   ICOM_THIS_MULTI(IDirectMusicTempoTrack, TrackVtbl, iface);
 246   FIXME("(%p, %s, %lli, %p, %p, %ld): stub\n", This, debugstr_dmguid(rguidType), rtTime, pParam, pStateData, dwFlags);
 247   return S_OK;
 248 }
 249
 250 HRESULT WINAPI IDirectMusicTempoTrack_IDirectMusicTrack_Compose (LPDIRECTMUSICTRACK8 iface, IUnknown* pContext, DWORD dwTrackGroup, IDirectMusicTrack** ppResultTrack) {
 251   ICOM_THIS_MULTI(IDirectMusicTempoTrack, TrackVtbl, iface);
 252   FIXME("(%p, %p, %ld, %p): stub\n", This, pContext, dwTrackGroup, ppResultTrack);
 253   return S_OK;
 254 }
 255
 256 HRESULT WINAPI IDirectMusicTempoTrack_IDirectMusicTrack_Join (LPDIRECTMUSICTRACK8 iface, IDirectMusicTrack* pNewTrack, MUSIC_TIME mtJoin, IUnknown* pContext, DWORD dwTrackGroup, IDirectMusicTrack** ppResultTrack) {
 257   ICOM_THIS_MULTI(IDirectMusicTempoTrack, TrackVtbl, iface);
 258   FIXME("(%p, %p, %ld, %p, %ld, %p): stub\n", This, pNewTrack, mtJoin, pContext, dwTrackGroup, ppResultTrack);
 259   return S_OK;
 260 }
 261
 262 ICOM_VTABLE(IDirectMusicTrack8) DirectMusicTempoTrack_Track_Vtbl = {
 263   ICOM_MSVTABLE_COMPAT_DummyRTTIVALUE
 264   IDirectMusicTempoTrack_IDirectMusicTrack_QueryInterface,
 265   IDirectMusicTempoTrack_IDirectMusicTrack_AddRef,
 266   IDirectMusicTempoTrack_IDirectMusicTrack_Release,
 267   IDirectMusicTempoTrack_IDirectMusicTrack_Init,
 268   IDirectMusicTempoTrack_IDirectMusicTrack_InitPlay,
 269   IDirectMusicTempoTrack_IDirectMusicTrack_EndPlay,
 270   IDirectMusicTempoTrack_IDirectMusicTrack_Play,
 271   IDirectMusicTempoTrack_IDirectMusicTrack_GetParam,
 272   IDirectMusicTempoTrack_IDirectMusicTrack_SetParam,
 273   IDirectMusicTempoTrack_IDirectMusicTrack_IsParamSupported,
 274   IDirectMusicTempoTrack_IDirectMusicTrack_AddNotificationType,
 275   IDirectMusicTempoTrack_IDirectMusicTrack_RemoveNotificationType,
 276   IDirectMusicTempoTrack_IDirectMusicTrack_Clone,
 277   IDirectMusicTempoTrack_IDirectMusicTrack_PlayEx,
 278   IDirectMusicTempoTrack_IDirectMusicTrack_GetParamEx,
 279   IDirectMusicTempoTrack_IDirectMusicTrack_SetParamEx,
 280   IDirectMusicTempoTrack_IDirectMusicTrack_Compose,
 281   IDirectMusicTempoTrack_IDirectMusicTrack_Join
 282 };
 283
 284 /* IDirectMusicTempoTrack IPersistStream part: */
 285 HRESULT WINAPI IDirectMusicTempoTrack_IPersistStream_QueryInterface (LPPERSISTSTREAM iface, REFIID riid, LPVOID *ppobj) {
 286   ICOM_THIS_MULTI(IDirectMusicTempoTrack, PersistStreamVtbl, iface);
 287   return IDirectMusicTempoTrack_IUnknown_QueryInterface ((LPUNKNOWN)&This->UnknownVtbl, riid, ppobj);
 288 }
 289
 290 ULONG WINAPI IDirectMusicTempoTrack_IPersistStream_AddRef (LPPERSISTSTREAM iface) {
 291   ICOM_THIS_MULTI(IDirectMusicTempoTrack, PersistStreamVtbl, iface);
 292   return IDirectMusicTempoTrack_IUnknown_AddRef ((LPUNKNOWN)&This->UnknownVtbl);
 293 }
 294
 295 ULONG WINAPI IDirectMusicTempoTrack_IPersistStream_Release (LPPERSISTSTREAM iface) {
 296   ICOM_THIS_MULTI(IDirectMusicTempoTrack, PersistStreamVtbl, iface);
 297   return IDirectMusicTempoTrack_IUnknown_Release ((LPUNKNOWN)&This->UnknownVtbl);
 298 }
 299
 300 HRESULT WINAPI IDirectMusicTempoTrack_IPersistStream_GetClassID (LPPERSISTSTREAM iface, CLSID* pClassID) {
 301   ICOM_THIS_MULTI(IDirectMusicSegment8Impl, PersistStreamVtbl, iface);
 302   TRACE("(%p, %p)\n", This, pClassID);
 303   memcpy(pClassID, &CLSID_DirectMusicTempoTrack, sizeof(CLSID));
 304   return S_OK;
 305 }
 306
 307 HRESULT WINAPI IDirectMusicTempoTrack_IPersistStream_IsDirty (LPPERSISTSTREAM iface) {
 308   ICOM_THIS_MULTI(IDirectMusicTempoTrack, PersistStreamVtbl, iface);
 309   FIXME("(%p): stub, always S_FALSE\n", This);
 310   return S_FALSE;
 311 }
 312
 313 HRESULT WINAPI IDirectMusicTempoTrack_IPersistStream_Load (LPPERSISTSTREAM iface, IStream* pStm) {
 314   ICOM_THIS_MULTI(IDirectMusicTempoTrack, PersistStreamVtbl, iface);
 315   DMUS_PRIVATE_CHUNK Chunk;
 316   DWORD StreamSize, StreamCount;
 317   LARGE_INTEGER liMove;
 318   DMUS_IO_TEMPO_ITEM item;
 319   LPDMUS_PRIVATE_TEMPO_ITEM pNewItem = NULL;
 320   DWORD nItem = 0;
 321   FIXME("(%p, %p): Loading not fully implemented yet\n", This, pStm);
 322
 323 #if 1
 324   IStream_Read (pStm, &Chunk, sizeof(FOURCC)+sizeof(DWORD), NULL);
 325   TRACE_(dmfile)(": %s chunk (size = %ld)", debugstr_fourcc (Chunk.fccID), Chunk.dwSize);
 326   switch (Chunk.fccID) {
 327   case DMUS_FOURCC_TEMPO_TRACK: {
 328     TRACE_(dmfile)(": Tempo track\n");
 329 #if 1
 330     IStream_Read (pStm, &StreamSize, sizeof(DWORD), NULL);
 331     StreamSize -= sizeof(DWORD);
 332     StreamCount = 0;
 333     TRACE_(dmfile)(" - sizeof(DMUS_IO_TEMPO_ITEM): %lu (chunkSize = %lu)\n", StreamSize, Chunk.dwSize - sizeof(DWORD));
 334     do {
 335       IStream_Read (pStm, &item, sizeof(item), NULL);
 336       ++nItem;
 337       TRACE_(dmfile)("DMUS_IO_TEMPO_ITEM #%ld\n", nItem);
 338       TRACE_(dmfile)(" - lTime = %lu\n", item.lTime);
 339       TRACE_(dmfile)(" - dblTempo = %g\n", item.dblTempo);
 340       pNewItem = HeapAlloc (GetProcessHeap (), HEAP_ZERO_MEMORY, sizeof(DMUS_PRIVATE_TEMPO_ITEM));
 341       if (NULL == pNewItem) {
 342         ERR(": no more memory\n");
 343         return  E_OUTOFMEMORY;
 344       }
 345       memcpy(&pNewItem->item, &item, sizeof(DMUS_IO_TEMPO_ITEM));
 346       list_add_tail (&This->Items, &pNewItem->entry);
 347       pNewItem = NULL;
 348       StreamCount += sizeof(item);
 349       TRACE_(dmfile)(": StreamCount[0] = %ld < StreamSize[0] = %ld\n", StreamCount, StreamSize);
 350     } while (StreamCount < StreamSize);
 351 #else
 352     liMove.QuadPart = Chunk.dwSize;
 353     IStream_Seek (pStm, liMove, STREAM_SEEK_CUR, NULL);
 354 #endif
 355     break;
 356   }
 357   default: {
 358     TRACE_(dmfile)(": unexpected chunk; loading failed)\n");
 359     liMove.QuadPart = Chunk.dwSize;
 360     IStream_Seek (pStm, liMove, STREAM_SEEK_CUR, NULL);
 361     return E_FAIL;
 362   }
 363   }
 364 #endif
 365
 366   return S_OK;
 367 }
 368
 369 HRESULT WINAPI IDirectMusicTempoTrack_IPersistStream_Save (LPPERSISTSTREAM iface, IStream* pStm, BOOL fClearDirty) {
 370   ICOM_THIS_MULTI(IDirectMusicTempoTrack, PersistStreamVtbl, iface);
 371   FIXME("(%p): Saving not implemented yet\n", This);
 372   return E_NOTIMPL;
 373 }
 374
 375 HRESULT WINAPI IDirectMusicTempoTrack_IPersistStream_GetSizeMax (LPPERSISTSTREAM iface, ULARGE_INTEGER* pcbSize) {
 376   ICOM_THIS_MULTI(IDirectMusicTempoTrack, PersistStreamVtbl, iface);
 377   FIXME("(%p, %p): stub\n", This, pcbSize);
 378   return E_NOTIMPL;
 379 }
 380
 381 ICOM_VTABLE(IPersistStream) DirectMusicTempoTrack_PersistStream_Vtbl = {
 382   ICOM_MSVTABLE_COMPAT_DummyRTTIVALUE
 383   IDirectMusicTempoTrack_IPersistStream_QueryInterface,
 384   IDirectMusicTempoTrack_IPersistStream_AddRef,
 385   IDirectMusicTempoTrack_IPersistStream_Release,
 386   IDirectMusicTempoTrack_IPersistStream_GetClassID,
 387   IDirectMusicTempoTrack_IPersistStream_IsDirty,
 388   IDirectMusicTempoTrack_IPersistStream_Load,
 389   IDirectMusicTempoTrack_IPersistStream_Save,
 390   IDirectMusicTempoTrack_IPersistStream_GetSizeMax
 391 };
 392
 393 /* for ClassFactory */
 394 HRESULT WINAPI DMUSIC_CreateDirectMusicTempoTrack (LPCGUID lpcGUID, LPVOID *ppobj, LPUNKNOWN pUnkOuter) {
 395   IDirectMusicTempoTrack* track;
 396
 397   track = HeapAlloc (GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(IDirectMusicTempoTrack));
 398   if (NULL == track) {
 399     *ppobj = (LPVOID) NULL;
 400     return E_OUTOFMEMORY;
 401   }
 402   track->UnknownVtbl = &DirectMusicTempoTrack_Unknown_Vtbl;
 403   track->TrackVtbl = &DirectMusicTempoTrack_Track_Vtbl;
 404   track->PersistStreamVtbl = &DirectMusicTempoTrack_PersistStream_Vtbl;
 405   track->pDesc = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(DMUS_OBJECTDESC));
 406   DM_STRUCT_INIT(track->pDesc);
 407   track->pDesc->dwValidData |= DMUS_OBJ_CLASS;
 408   memcpy (&track->pDesc->guidClass, &CLSID_DirectMusicTempoTrack, sizeof (CLSID));
 409   track->ref = 0; /* will be inited by QueryInterface */
 410   track->enabled = TRUE;
 411   list_init (&track->Items);
 412
 413   return IDirectMusicTempoTrack_IUnknown_QueryInterface ((LPUNKNOWN)&track->UnknownVtbl, lpcGUID, ppobj);
 414 }