text: /* IDirectMusicSegment8 Implementation
   *
   * Copyright (C) 2003-2004 Rok Mandeljc
   * Copyright (C) 2003-2004 Raphael Junqueira
   *
   * This program is free software; you can redistribute it and/or
   * modify it under the terms of the GNU Lesser General Public
   * License as published by the Free Software Foundation; either
   * version 2.1 of the License, or (at your option) any later version.
   *
   * This program is distributed in the hope that it will be useful,
   * but WITHOUT ANY WARRANTY; without even the implied warranty of
   * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
   * Lesser General Public License for more details.
   *
   * You should have received a copy of the GNU Lesser General Public
   * License along with this program; if not, write to the Free Software
   * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
   */
  
  #include "dmime_private.h"
  
  WINE_DEFAULT_DEBUG_CHANNEL(dmime);
  WINE_DECLARE_DEBUG_CHANNEL(dmfile);
  
  /*****************************************************************************
   * IDirectMusicSegmentImpl implementation
   */
  typedef struct IDirectMusicSegment8Impl {
      IDirectMusicSegment8 IDirectMusicSegment8_iface;
      const IDirectMusicObjectVtbl *ObjectVtbl;
      const IPersistStreamVtbl *PersistStreamVtbl;
      LONG ref;
      DMUS_OBJECTDESC *pDesc;
      DMUS_IO_SEGMENT_HEADER header;
      IDirectMusicGraph *pGraph;
      struct list Tracks;
  } IDirectMusicSegment8Impl;
  
  static inline IDirectMusicSegment8Impl *impl_from_IDirectMusicSegment8(IDirectMusicSegment8 *iface)
  {
    return CONTAINING_RECORD(iface, IDirectMusicSegment8Impl, IDirectMusicSegment8_iface);
  }
  
  static HRESULT WINAPI IDirectMusicSegment8Impl_QueryInterface(IDirectMusicSegment8 *iface,
          REFIID riid, void **ret_iface)
  {
      IDirectMusicSegment8Impl *This = impl_from_IDirectMusicSegment8(iface);
  
      *ret_iface = NULL;
  
      if (IsEqualIID (riid, &IID_IUnknown) || IsEqualIID (riid, &IID_IDirectMusicSegment) ||
              IsEqualIID(riid, &IID_IDirectMusicSegment2) ||
              IsEqualIID (riid, &IID_IDirectMusicSegment8))
          *ret_iface = iface;
      else if (IsEqualIID (riid, &IID_IDirectMusicObject))
          *ret_iface = &This->ObjectVtbl;
      else if (IsEqualIID (riid, &IID_IPersistStream))
          *ret_iface = &This->PersistStreamVtbl;
      else {
          WARN("(%p, %s, %p): not found\n", This, debugstr_dmguid(riid), ret_iface);
          return E_NOINTERFACE;
      }
  
      IUnknown_AddRef((IUnknown*)*ret_iface);
      return S_OK;
  }
  
  static ULONG WINAPI IDirectMusicSegment8Impl_AddRef(IDirectMusicSegment8 *iface)
  {
      IDirectMusicSegment8Impl *This = impl_from_IDirectMusicSegment8(iface);
      LONG ref = InterlockedIncrement(&This->ref);
  
      TRACE("(%p) ref=%d\n", This, ref);
  
      return ref;
  }
  
  static ULONG WINAPI IDirectMusicSegment8Impl_Release(IDirectMusicSegment8 *iface)
  {
      IDirectMusicSegment8Impl *This = impl_from_IDirectMusicSegment8(iface);
      LONG ref = InterlockedDecrement(&This->ref);
  
      TRACE("(%p) ref=%d\n", This, ref);
  
      if (!ref) {
          HeapFree(GetProcessHeap(), 0, This);
          DMIME_UnlockModule();
      }
  
      return ref;
  }
  
  static HRESULT WINAPI IDirectMusicSegment8Impl_GetLength(IDirectMusicSegment8 *iface,
          MUSIC_TIME *pmtLength)
  {
    IDirectMusicSegment8Impl *This = impl_from_IDirectMusicSegment8(iface);
  
    TRACE("(%p, %p)\n", This, pmtLength);
    if (NULL == pmtLength) {
      return E_POINTER;
    }
    *pmtLength = This->header.mtLength;
    return S_OK;
  }
  
  static HRESULT WINAPI IDirectMusicSegment8Impl_SetLength(IDirectMusicSegment8 *iface,
          MUSIC_TIME mtLength)
  {
    IDirectMusicSegment8Impl *This = impl_from_IDirectMusicSegment8(iface);
  
    TRACE("(%p, %d)\n", This, mtLength);
    This->header.mtLength = mtLength;
    return S_OK;
  }
  
  static HRESULT WINAPI IDirectMusicSegment8Impl_GetRepeats(IDirectMusicSegment8 *iface,
          DWORD *pdwRepeats)
  {
    IDirectMusicSegment8Impl *This = impl_from_IDirectMusicSegment8(iface);
  
    TRACE("(%p, %p)\n", This, pdwRepeats);
    if (NULL == pdwRepeats) {
      return E_POINTER;
    }
    *pdwRepeats = This->header.dwRepeats;
    return S_OK;
  }
  
  static HRESULT WINAPI IDirectMusicSegment8Impl_SetRepeats(IDirectMusicSegment8 *iface,
          DWORD dwRepeats)
  {
    IDirectMusicSegment8Impl *This = impl_from_IDirectMusicSegment8(iface);
  
    TRACE("(%p, %d)\n", This, dwRepeats);
    This->header.dwRepeats = dwRepeats;
    return S_OK;
  }
  
  static HRESULT WINAPI IDirectMusicSegment8Impl_GetDefaultResolution(IDirectMusicSegment8 *iface,
          DWORD *pdwResolution)
  {
    IDirectMusicSegment8Impl *This = impl_from_IDirectMusicSegment8(iface);
  
    TRACE("(%p, %p)\n", This, pdwResolution);
    if (NULL == pdwResolution) {
      return E_POINTER;
    }
    *pdwResolution = This->header.dwResolution;
    return S_OK;
  }
  
  static HRESULT WINAPI IDirectMusicSegment8Impl_SetDefaultResolution(IDirectMusicSegment8 *iface,
          DWORD dwResolution)
  {
    IDirectMusicSegment8Impl *This = impl_from_IDirectMusicSegment8(iface);
  
    TRACE("(%p, %d)\n", This, dwResolution);
    This->header.dwResolution = dwResolution;
    return S_OK;
  }
  
  static HRESULT WINAPI IDirectMusicSegment8Impl_GetTrack(IDirectMusicSegment8 *iface,
          REFGUID rguidType, DWORD dwGroupBits, DWORD dwIndex, IDirectMusicTrack **ppTrack)
  {
    IDirectMusicSegment8Impl *This = impl_from_IDirectMusicSegment8(iface);
    CLSID pIt_clsid;
    struct list* pEntry = NULL;
    LPDMUS_PRIVATE_SEGMENT_TRACK pIt = NULL;
    IPersistStream* pCLSIDStream = NULL;
    HRESULT hr = S_OK;
  
    TRACE("(%p, %s, %d, 0x%x, %p)\n", This, debugstr_dmguid(rguidType), dwGroupBits, dwIndex, ppTrack);
  
    if (NULL == ppTrack) {
      return E_POINTER;
    }
  
    LIST_FOR_EACH (pEntry, &This->Tracks) {
      pIt = LIST_ENTRY(pEntry, DMUS_PRIVATE_SEGMENT_TRACK, entry);
      TRACE(" - %p -> 0x%x,%p\n", pIt, pIt->dwGroupBits, pIt->pTrack);
      if (0xFFFFFFFF != dwGroupBits && 0 == (pIt->dwGroupBits & dwGroupBits)) continue ;
      if (FALSE == IsEqualGUID(&GUID_NULL, rguidType)) {
        /**
         * it rguidType is not null we must check if CLSIDs are equal
         * and the unique way to get it is using IPersistStream Interface
         */
        hr = IDirectMusicTrack_QueryInterface(pIt->pTrack, &IID_IPersistStream, (void**) &pCLSIDStream);
        if (FAILED(hr)) {
  	ERR("(%p): object %p don't implement IPersistStream Interface. Expect a crash (critical problem)\n", This, pIt->pTrack);
  	continue ;
        }
        hr = IPersistStream_GetClassID(pCLSIDStream, &pIt_clsid);
        IPersistStream_Release(pCLSIDStream); pCLSIDStream = NULL;
        if (FAILED(hr)) {
  	ERR("(%p): non-implemented GetClassID for object %p\n", This, pIt->pTrack);
  	continue ;
        }
        TRACE(" - %p -> %s\n", pIt, debugstr_dmguid(&pIt_clsid));
        if (FALSE == IsEqualGUID(&pIt_clsid, rguidType)) continue ;
      }
      if (0 == dwIndex) {
        *ppTrack = pIt->pTrack;
        IDirectMusicTrack_AddRef(*ppTrack);
        return S_OK;
      } 
      --dwIndex;
    }  
    return DMUS_E_NOT_FOUND;
  }
  
  static HRESULT WINAPI IDirectMusicSegment8Impl_GetTrackGroup(IDirectMusicSegment8 *iface,
          IDirectMusicTrack *pTrack, DWORD *pdwGroupBits)
  {
    IDirectMusicSegment8Impl *This = impl_from_IDirectMusicSegment8(iface);
    struct list* pEntry = NULL;
    LPDMUS_PRIVATE_SEGMENT_TRACK pIt = NULL;
  
    TRACE("(%p, %p, %p)\n", This, pTrack, pdwGroupBits);
  
    if (NULL == pdwGroupBits) {
      return E_POINTER;
    }
  
    LIST_FOR_EACH (pEntry, &This->Tracks) {
      pIt = LIST_ENTRY(pEntry, DMUS_PRIVATE_SEGMENT_TRACK, entry);
      TRACE(" - %p -> %d,%p\n", pIt, pIt->dwGroupBits, pIt->pTrack);
      if (NULL != pIt && pIt->pTrack == pTrack) {
        *pdwGroupBits = pIt->dwGroupBits;
        return S_OK;
      }
    }
  
    return DMUS_E_NOT_FOUND;
  }
  
  static HRESULT WINAPI IDirectMusicSegment8Impl_InsertTrack(IDirectMusicSegment8 *iface,
          IDirectMusicTrack *pTrack, DWORD dwGroupBits)
  {
    IDirectMusicSegment8Impl *This = impl_from_IDirectMusicSegment8(iface);
    DWORD i = 0;
    struct list* pEntry = NULL;
    LPDMUS_PRIVATE_SEGMENT_TRACK pIt = NULL;
    LPDMUS_PRIVATE_SEGMENT_TRACK pNewSegTrack = NULL;
  
    TRACE("(%p, %p, %d)\n", This, pTrack, dwGroupBits);
  
    LIST_FOR_EACH (pEntry, &This->Tracks) {
      i++;
      pIt = LIST_ENTRY(pEntry, DMUS_PRIVATE_SEGMENT_TRACK, entry);
      TRACE(" - #%u: %p -> %d,%p\n", i, pIt, pIt->dwGroupBits, pIt->pTrack);
      if (NULL != pIt && pIt->pTrack == pTrack) {
        ERR("(%p, %p): track is already in list\n", This, pTrack);
        return E_FAIL;
      }
    }
  
    pNewSegTrack = HeapAlloc (GetProcessHeap (), HEAP_ZERO_MEMORY, sizeof(DMUS_PRIVATE_SEGMENT_TRACK));
    if (NULL == pNewSegTrack)
      return  E_OUTOFMEMORY;
  
    pNewSegTrack->dwGroupBits = dwGroupBits;
    pNewSegTrack->pTrack = pTrack;
    IDirectMusicTrack_Init(pTrack, (IDirectMusicSegment *)iface);
    IDirectMusicTrack_AddRef(pTrack);
    list_add_tail (&This->Tracks, &pNewSegTrack->entry);
  
    return S_OK;
  }
  
  static HRESULT WINAPI IDirectMusicSegment8Impl_RemoveTrack(IDirectMusicSegment8 *iface,
          IDirectMusicTrack *pTrack)
  {
    IDirectMusicSegment8Impl *This = impl_from_IDirectMusicSegment8(iface);
    struct list* pEntry = NULL;
    LPDMUS_PRIVATE_SEGMENT_TRACK pIt = NULL;
  
    TRACE("(%p, %p)\n", This, pTrack);
  
    LIST_FOR_EACH (pEntry, &This->Tracks) {
      pIt = LIST_ENTRY(pEntry, DMUS_PRIVATE_SEGMENT_TRACK, entry);
      if (pIt->pTrack == pTrack) {
        TRACE("(%p, %p): track in list\n", This, pTrack);
        
        list_remove(&pIt->entry);
        IDirectMusicTrack_Init(pIt->pTrack, NULL);
        IDirectMusicTrack_Release(pIt->pTrack);
        HeapFree(GetProcessHeap(), 0, pIt);   
  
        return S_OK;
      }
    }
    
    return S_FALSE;
  }
  
  static HRESULT WINAPI IDirectMusicSegment8Impl_InitPlay(IDirectMusicSegment8 *iface,
          IDirectMusicSegmentState **ppSegState, IDirectMusicPerformance *pPerformance, DWORD dwFlags)
  {
    IDirectMusicSegment8Impl *This = impl_from_IDirectMusicSegment8(iface);
    HRESULT hr;
  
    FIXME("(%p, %p, %p, %d): semi-stub\n", This, ppSegState, pPerformance, dwFlags);
    if (NULL == ppSegState) {
      return E_POINTER;
    }
    hr = create_dmsegmentstate(&IID_IDirectMusicSegmentState,(void**) ppSegState);
    if (FAILED(hr)) {
      return hr;
    }
    /* TODO: DMUS_SEGF_FLAGS */
    return S_OK;
  }
  
  static HRESULT WINAPI IDirectMusicSegment8Impl_GetGraph(IDirectMusicSegment8 *iface,
          IDirectMusicGraph **ppGraph)
  {
    IDirectMusicSegment8Impl *This = impl_from_IDirectMusicSegment8(iface);
  
    FIXME("(%p, %p): semi-stub\n", This, ppGraph);
    if (NULL == ppGraph) {
      return E_POINTER;
    }
    if (NULL == This->pGraph) {
      return DMUS_E_NOT_FOUND;
    }
    /** 
     * should return This, as seen in msdn 
     * "...The segment object implements IDirectMusicGraph directly..."
     */
    *ppGraph = This->pGraph;
    IDirectMusicGraph_AddRef(This->pGraph);
    return S_OK;
  }
  
  static HRESULT WINAPI IDirectMusicSegment8Impl_SetGraph(IDirectMusicSegment8 *iface,
          IDirectMusicGraph *pGraph)
  {
    IDirectMusicSegment8Impl *This = impl_from_IDirectMusicSegment8(iface);
  
    FIXME("(%p, %p): to complete\n", This, pGraph);
    if (NULL != This->pGraph) {
      IDirectMusicGraph_Release(This->pGraph);
    }
    This->pGraph = pGraph;
    if (NULL != This->pGraph) {
      IDirectMusicGraph_AddRef(This->pGraph);
    }
    return S_OK;
  }
  
  static HRESULT WINAPI IDirectMusicSegment8Impl_AddNotificationType(IDirectMusicSegment8 *iface,
          REFGUID rguidNotificationType)
  {
    IDirectMusicSegment8Impl *This = impl_from_IDirectMusicSegment8(iface);
    FIXME("(%p, %s): stub\n", This, debugstr_dmguid(rguidNotificationType));
    return S_OK;
  }
  
  static HRESULT WINAPI IDirectMusicSegment8Impl_RemoveNotificationType(IDirectMusicSegment8 *iface,
          REFGUID rguidNotificationType)
  {
    IDirectMusicSegment8Impl *This = impl_from_IDirectMusicSegment8(iface);
    FIXME("(%p, %s): stub\n", This, debugstr_dmguid(rguidNotificationType));
    return S_OK;
  }
  
  static HRESULT WINAPI IDirectMusicSegment8Impl_GetParam(IDirectMusicSegment8 *iface,
          REFGUID rguidType, DWORD dwGroupBits, DWORD dwIndex, MUSIC_TIME mtTime, MUSIC_TIME *pmtNext,
          void *pParam)
  {
    IDirectMusicSegment8Impl *This = impl_from_IDirectMusicSegment8(iface);
    CLSID pIt_clsid;
    struct list* pEntry = NULL;
    IDirectMusicTrack* pTrack = NULL;
    IPersistStream* pCLSIDStream = NULL;
    LPDMUS_PRIVATE_SEGMENT_TRACK pIt = NULL;
    HRESULT hr = S_OK;
  
    FIXME("(%p, %s, 0x%x, %d, %d, %p, %p)\n", This, debugstr_dmguid(rguidType), dwGroupBits, dwIndex, mtTime, pmtNext, pParam);
    
    if (DMUS_SEG_ANYTRACK == dwIndex) {
      
      LIST_FOR_EACH (pEntry, &This->Tracks) {
        pIt = LIST_ENTRY(pEntry, DMUS_PRIVATE_SEGMENT_TRACK, entry);
  
        hr = IDirectMusicTrack_QueryInterface(pIt->pTrack, &IID_IPersistStream, (void**) &pCLSIDStream);
        if (FAILED(hr)) {
  	ERR("(%p): object %p don't implement IPersistStream Interface. Expect a crash (critical problem)\n", This, pIt->pTrack);
  	continue ;
        }
  
        TRACE(" - %p -> 0x%x,%p\n", pIt, pIt->dwGroupBits, pIt->pTrack);
  
        if (0xFFFFFFFF != dwGroupBits && 0 == (pIt->dwGroupBits & dwGroupBits)) continue ;
        hr = IPersistStream_GetClassID(pCLSIDStream, &pIt_clsid);
        IPersistStream_Release(pCLSIDStream); pCLSIDStream = NULL;
        if (FAILED(hr)) {
  	ERR("(%p): non-implemented GetClassID for object %p\n", This, pIt->pTrack);
  	continue ;
        }
        if (FALSE == IsEqualGUID(&pIt_clsid, rguidType)) continue ;
        if (FAILED(IDirectMusicTrack_IsParamSupported(pIt->pTrack, rguidType))) continue ;
        hr = IDirectMusicTrack_GetParam(pIt->pTrack, rguidType, mtTime, pmtNext, pParam);
        if (SUCCEEDED(hr)) return hr;
      }
      ERR("(%p): not found\n", This);
      return DMUS_E_TRACK_NOT_FOUND;
    } 
  
    hr = IDirectMusicSegment8Impl_GetTrack(iface, &GUID_NULL, dwGroupBits, dwIndex, &pTrack);
    if (FAILED(hr)) {
      ERR("(%p): not found\n", This);
      return DMUS_E_TRACK_NOT_FOUND;
    }
  
    hr = IDirectMusicTrack_GetParam(pTrack, rguidType, mtTime, pmtNext, pParam);
    IDirectMusicTrack_Release(pTrack); pTrack = NULL;
  
    return hr;
  }
  
  static HRESULT WINAPI IDirectMusicSegment8Impl_SetParam(IDirectMusicSegment8 *iface,
          REFGUID rguidType, DWORD dwGroupBits, DWORD dwIndex, MUSIC_TIME mtTime, void *pParam)
  {
    IDirectMusicSegment8Impl *This = impl_from_IDirectMusicSegment8(iface);
    FIXME("(%p, %s, %d, %d, %d, %p): stub\n", This, debugstr_dmguid(rguidType), dwGroupBits, dwIndex, mtTime, pParam);
    return S_OK;
  }
  
  static HRESULT WINAPI IDirectMusicSegment8Impl_Clone(IDirectMusicSegment8 *iface,
          MUSIC_TIME mtStart, MUSIC_TIME mtEnd, IDirectMusicSegment **ppSegment)
  {
    IDirectMusicSegment8Impl *This = impl_from_IDirectMusicSegment8(iface);
    FIXME("(%p, %d, %d, %p): stub\n", This, mtStart, mtEnd, ppSegment);
    return S_OK;
  }
  
  static HRESULT WINAPI IDirectMusicSegment8Impl_SetStartPoint(IDirectMusicSegment8 *iface,
          MUSIC_TIME mtStart)
  {
    IDirectMusicSegment8Impl *This = impl_from_IDirectMusicSegment8(iface);
  
    TRACE("(%p, %d)\n", This, mtStart);
    if (mtStart >= This->header.mtLength) {
      return DMUS_E_OUT_OF_RANGE;
    }
    This->header.mtPlayStart = mtStart;
    return S_OK;
  }
  
  static HRESULT WINAPI IDirectMusicSegment8Impl_GetStartPoint(IDirectMusicSegment8 *iface,
          MUSIC_TIME *pmtStart)
  {
    IDirectMusicSegment8Impl *This = impl_from_IDirectMusicSegment8(iface);
  
    TRACE("(%p, %p)\n", This, pmtStart);
    if (NULL == pmtStart) {
      return E_POINTER;
    }
    *pmtStart = This->header.mtPlayStart;
    return S_OK;
  }
  
  static HRESULT WINAPI IDirectMusicSegment8Impl_SetLoopPoints(IDirectMusicSegment8 *iface,
          MUSIC_TIME mtStart, MUSIC_TIME mtEnd)
  {
    IDirectMusicSegment8Impl *This = impl_from_IDirectMusicSegment8(iface);
  
    TRACE("(%p, %d, %d)\n", This, mtStart, mtEnd);
    if (mtStart >= This->header.mtLength || mtEnd > This->header.mtLength || mtStart > mtEnd) {
      return DMUS_E_OUT_OF_RANGE;
    }
    This->header.mtLoopStart = mtStart;
    This->header.mtLoopEnd   = mtEnd;
    return S_OK;
  }
  
  static HRESULT WINAPI IDirectMusicSegment8Impl_GetLoopPoints(IDirectMusicSegment8 *iface,
          MUSIC_TIME *pmtStart, MUSIC_TIME *pmtEnd)
  {
    IDirectMusicSegment8Impl *This = impl_from_IDirectMusicSegment8(iface);
  
    TRACE("(%p, %p, %p)\n", This, pmtStart, pmtEnd);
    if (NULL == pmtStart || NULL == pmtEnd) {
      return E_POINTER;
    }
    *pmtStart = This->header.mtLoopStart;
    *pmtEnd   = This->header.mtLoopEnd;
    return S_OK;
  }
  
  static HRESULT WINAPI IDirectMusicSegment8Impl_SetPChannelsUsed(IDirectMusicSegment8 *iface,
          DWORD dwNumPChannels, DWORD *paPChannels)
  {
          IDirectMusicSegment8Impl *This = impl_from_IDirectMusicSegment8(iface);
  	FIXME("(%p, %d, %p): stub\n", This, dwNumPChannels, paPChannels);
  	return S_OK;
  }
  
  static HRESULT WINAPI IDirectMusicSegment8Impl_SetTrackConfig(IDirectMusicSegment8 *iface,
          REFGUID rguidTrackClassID, DWORD dwGroupBits, DWORD dwIndex, DWORD dwFlagsOn,
          DWORD dwFlagsOff)
  {
          IDirectMusicSegment8Impl *This = impl_from_IDirectMusicSegment8(iface);
  	FIXME("(%p, %s, %d, %d, %d, %d): stub\n", This, debugstr_dmguid(rguidTrackClassID), dwGroupBits, dwIndex, dwFlagsOn, dwFlagsOff);
  	return S_OK;
  }
  
  static HRESULT WINAPI IDirectMusicSegment8Impl_GetAudioPathConfig(IDirectMusicSegment8 *iface,
          IUnknown **ppAudioPathConfig)
  {
          IDirectMusicSegment8Impl *This = impl_from_IDirectMusicSegment8(iface);
  	FIXME("(%p, %p): stub\n", This, ppAudioPathConfig);
  	return S_OK;
  }
  
  static HRESULT WINAPI IDirectMusicSegment8Impl_Compose(IDirectMusicSegment8 *iface,
          MUSIC_TIME mtTime, IDirectMusicSegment *pFromSegment, IDirectMusicSegment *pToSegment,
          IDirectMusicSegment **ppComposedSegment)
  {
          IDirectMusicSegment8Impl *This = impl_from_IDirectMusicSegment8(iface);
  	FIXME("(%p, %d, %p, %p, %p): stub\n", This, mtTime, pFromSegment, pToSegment, ppComposedSegment);
  	return S_OK;
  }
  
  static HRESULT WINAPI IDirectMusicSegment8Impl_Download(IDirectMusicSegment8 *iface,
          IUnknown *pAudioPath)
  {
          IDirectMusicSegment8Impl *This = impl_from_IDirectMusicSegment8(iface);
  	FIXME("(%p, %p): stub\n", This, pAudioPath);
  	return S_OK;
  }
  
  static HRESULT WINAPI IDirectMusicSegment8Impl_Unload(IDirectMusicSegment8 *iface,
          IUnknown *pAudioPath)
  {
          IDirectMusicSegment8Impl *This = impl_from_IDirectMusicSegment8(iface);
  	FIXME("(%p, %p): stub\n", This, pAudioPath);
  	return S_OK;
  }
  
  static const IDirectMusicSegment8Vtbl dmsegment8_vtbl = {
      IDirectMusicSegment8Impl_QueryInterface,
      IDirectMusicSegment8Impl_AddRef,
      IDirectMusicSegment8Impl_Release,
      IDirectMusicSegment8Impl_GetLength,
      IDirectMusicSegment8Impl_SetLength,
      IDirectMusicSegment8Impl_GetRepeats,
      IDirectMusicSegment8Impl_SetRepeats,
      IDirectMusicSegment8Impl_GetDefaultResolution,
      IDirectMusicSegment8Impl_SetDefaultResolution,
      IDirectMusicSegment8Impl_GetTrack,
      IDirectMusicSegment8Impl_GetTrackGroup,
      IDirectMusicSegment8Impl_InsertTrack,
      IDirectMusicSegment8Impl_RemoveTrack,
      IDirectMusicSegment8Impl_InitPlay,
      IDirectMusicSegment8Impl_GetGraph,
      IDirectMusicSegment8Impl_SetGraph,
      IDirectMusicSegment8Impl_AddNotificationType,
      IDirectMusicSegment8Impl_RemoveNotificationType,
      IDirectMusicSegment8Impl_GetParam,
      IDirectMusicSegment8Impl_SetParam,
      IDirectMusicSegment8Impl_Clone,
      IDirectMusicSegment8Impl_SetStartPoint,
      IDirectMusicSegment8Impl_GetStartPoint,
      IDirectMusicSegment8Impl_SetLoopPoints,
      IDirectMusicSegment8Impl_GetLoopPoints,
      IDirectMusicSegment8Impl_SetPChannelsUsed,
      IDirectMusicSegment8Impl_SetTrackConfig,
      IDirectMusicSegment8Impl_GetAudioPathConfig,
      IDirectMusicSegment8Impl_Compose,
      IDirectMusicSegment8Impl_Download,
      IDirectMusicSegment8Impl_Unload
  };
  
  /* IDirectMusicSegment8Impl IDirectMusicObject part: */
  static HRESULT WINAPI IDirectMusicSegment8Impl_IDirectMusicObject_QueryInterface (LPDIRECTMUSICOBJECT iface, REFIID riid, LPVOID *ppobj) {
  	ICOM_THIS_MULTI(IDirectMusicSegment8Impl, ObjectVtbl, iface);
          return IDirectMusicSegment8_QueryInterface(&This->IDirectMusicSegment8_iface, riid, ppobj);
  }
  
  static ULONG WINAPI IDirectMusicSegment8Impl_IDirectMusicObject_AddRef (LPDIRECTMUSICOBJECT iface) {
  	ICOM_THIS_MULTI(IDirectMusicSegment8Impl, ObjectVtbl, iface);
          return IDirectMusicSegment8_AddRef(&This->IDirectMusicSegment8_iface);
  }
  
  static ULONG WINAPI IDirectMusicSegment8Impl_IDirectMusicObject_Release (LPDIRECTMUSICOBJECT iface) {
  	ICOM_THIS_MULTI(IDirectMusicSegment8Impl, ObjectVtbl, iface);
          return IDirectMusicSegment8_Release(&This->IDirectMusicSegment8_iface);
  }
  
  static HRESULT WINAPI IDirectMusicSegment8Impl_IDirectMusicObject_GetDescriptor (LPDIRECTMUSICOBJECT iface, LPDMUS_OBJECTDESC pDesc) {
  	ICOM_THIS_MULTI(IDirectMusicSegment8Impl, ObjectVtbl, iface);
  	TRACE("(%p, %p)\n", This, pDesc);
  	/* I think we shouldn't return pointer here since then values can be changed; it'd be a mess */
  	memcpy (pDesc, This->pDesc, This->pDesc->dwSize);
  	return S_OK;
  }
  
  static HRESULT WINAPI IDirectMusicSegment8Impl_IDirectMusicObject_SetDescriptor (LPDIRECTMUSICOBJECT iface, LPDMUS_OBJECTDESC pDesc) {
  	ICOM_THIS_MULTI(IDirectMusicSegment8Impl, ObjectVtbl, iface);
  	TRACE("(%p, %p): setting descriptor:\n%s\n", This, pDesc, debugstr_DMUS_OBJECTDESC (pDesc));
  
  	/* According to MSDN, we should copy only given values, not whole struct */	
  	if (pDesc->dwValidData & DMUS_OBJ_OBJECT)
  		This->pDesc->guidObject = pDesc->guidObject;
  	if (pDesc->dwValidData & DMUS_OBJ_CLASS)
  		This->pDesc->guidClass = pDesc->guidClass;
  	if (pDesc->dwValidData & DMUS_OBJ_NAME)
  		lstrcpynW (This->pDesc->wszName, pDesc->wszName, DMUS_MAX_NAME);
  	if (pDesc->dwValidData & DMUS_OBJ_CATEGORY)
  		lstrcpynW (This->pDesc->wszCategory, pDesc->wszCategory, DMUS_MAX_CATEGORY);
  	if (pDesc->dwValidData & DMUS_OBJ_FILENAME)
  		lstrcpynW (This->pDesc->wszFileName, pDesc->wszFileName, DMUS_MAX_FILENAME);
  	if (pDesc->dwValidData & DMUS_OBJ_VERSION)
  		This->pDesc->vVersion = pDesc->vVersion;
  	if (pDesc->dwValidData & DMUS_OBJ_DATE)
  		This->pDesc->ftDate = pDesc->ftDate;
  	if (pDesc->dwValidData & DMUS_OBJ_MEMORY) {
  		This->pDesc->llMemLength = pDesc->llMemLength;
  		memcpy (This->pDesc->pbMemData, pDesc->pbMemData, pDesc->llMemLength);
  	}
  	if (pDesc->dwValidData & DMUS_OBJ_STREAM) {
  		/* according to MSDN, we copy the stream */
  		IStream_Clone (pDesc->pStream, &This->pDesc->pStream);	
  	}
  	
  	/* add new flags */
  	This->pDesc->dwValidData |= pDesc->dwValidData;
  
  	return S_OK;
  }
  
  static HRESULT WINAPI IDirectMusicSegment8Impl_IDirectMusicObject_ParseDescriptor (LPDIRECTMUSICOBJECT iface, LPSTREAM pStream, LPDMUS_OBJECTDESC pDesc) {
  	ICOM_THIS_MULTI(IDirectMusicSegment8Impl, ObjectVtbl, iface);
  	DMUS_PRIVATE_CHUNK Chunk;
  	DWORD StreamSize, StreamCount, ListSize[1], ListCount[1];
  	LARGE_INTEGER liMove; /* used when skipping chunks */
  
  	TRACE("(%p,%p, %p)\n", This, pStream, pDesc);
  
  	/* FIXME: should this be determined from stream? */
  	pDesc->dwValidData |= DMUS_OBJ_CLASS;
  	pDesc->guidClass = CLSID_DirectMusicSegment;
  
  	IStream_Read (pStream, &Chunk, sizeof(FOURCC)+sizeof(DWORD), NULL);
  	TRACE_(dmfile)(": %s chunk (size = 0x%04x)", debugstr_fourcc (Chunk.fccID), Chunk.dwSize);
  	switch (Chunk.fccID) {	
  		case FOURCC_RIFF: {
  			IStream_Read (pStream, &Chunk.fccID, sizeof(FOURCC), NULL);				
  			TRACE_(dmfile)(": RIFF chunk of type %s", debugstr_fourcc(Chunk.fccID));
  			StreamSize = Chunk.dwSize - sizeof(FOURCC);
  			StreamCount = 0;
  			if (Chunk.fccID == DMUS_FOURCC_SEGMENT_FORM) {
  				TRACE_(dmfile)(": segment form\n");
  				do {
  					IStream_Read (pStream, &Chunk, sizeof(FOURCC)+sizeof(DWORD), NULL);
  					StreamCount += sizeof(FOURCC) + sizeof(DWORD) + Chunk.dwSize;
  					TRACE_(dmfile)(": %s chunk (size = 0x%04x)", debugstr_fourcc (Chunk.fccID), Chunk.dwSize);
  					switch (Chunk.fccID) {
  						case DMUS_FOURCC_GUID_CHUNK: {
  							TRACE_(dmfile)(": GUID chunk\n");
  							pDesc->dwValidData |= DMUS_OBJ_OBJECT;
  							IStream_Read (pStream, &pDesc->guidObject, Chunk.dwSize, NULL);
  							break;
  						}
  						case DMUS_FOURCC_VERSION_CHUNK: {
  							TRACE_(dmfile)(": version chunk\n");
  							pDesc->dwValidData |= DMUS_OBJ_VERSION;
  							IStream_Read (pStream, &pDesc->vVersion, Chunk.dwSize, NULL);
  							break;
  						}
  						case DMUS_FOURCC_CATEGORY_CHUNK: {
  							TRACE_(dmfile)(": category chunk\n");
  							pDesc->dwValidData |= DMUS_OBJ_CATEGORY;
  							IStream_Read (pStream, pDesc->wszCategory, Chunk.dwSize, NULL);
  							break;
  						}
  						case FOURCC_LIST: {
  							IStream_Read (pStream, &Chunk.fccID, sizeof(FOURCC), NULL);				
  							TRACE_(dmfile)(": LIST chunk of type %s", debugstr_fourcc(Chunk.fccID));
  							ListSize[0] = Chunk.dwSize - sizeof(FOURCC);
  							ListCount[0] = 0;
  							switch (Chunk.fccID) {
  								/* evil M$ UNFO list, which can (!?) contain INFO elements */
  								case DMUS_FOURCC_UNFO_LIST: {
  									TRACE_(dmfile)(": UNFO list\n");
  									do {
  										IStream_Read (pStream, &Chunk, sizeof(FOURCC)+sizeof(DWORD), NULL);
  										ListCount[0] += sizeof(FOURCC) + sizeof(DWORD) + Chunk.dwSize;
  										TRACE_(dmfile)(": %s chunk (size = 0x%04x)", debugstr_fourcc (Chunk.fccID), Chunk.dwSize);
  										switch (Chunk.fccID) {
  											/* don't ask me why, but M$ puts INFO elements in UNFO list sometimes
  											   (though strings seem to be valid unicode) */
  											case mmioFOURCC('I','N','A','M'):
  											case DMUS_FOURCC_UNAM_CHUNK: {
  												TRACE_(dmfile)(": name chunk\n");
  												pDesc->dwValidData |= DMUS_OBJ_NAME;
  												IStream_Read (pStream, pDesc->wszName, Chunk.dwSize, NULL);
  												break;
  											}
  											case mmioFOURCC('I','A','R','T'):
  											case DMUS_FOURCC_UART_CHUNK: {
  												TRACE_(dmfile)(": artist chunk (ignored)\n");
  												liMove.QuadPart = Chunk.dwSize;
  												IStream_Seek (pStream, liMove, STREAM_SEEK_CUR, NULL);
  												break;
  											}
  											case mmioFOURCC('I','C','O','P'):
  											case DMUS_FOURCC_UCOP_CHUNK: {
  												TRACE_(dmfile)(": copyright chunk (ignored)\n");
  												liMove.QuadPart = Chunk.dwSize;
  												IStream_Seek (pStream, liMove, STREAM_SEEK_CUR, NULL);
  												break;
  											}
  											case mmioFOURCC('I','S','B','J'):
  											case DMUS_FOURCC_USBJ_CHUNK: {
  												TRACE_(dmfile)(": subject chunk (ignored)\n");
  												liMove.QuadPart = Chunk.dwSize;
  												IStream_Seek (pStream, liMove, STREAM_SEEK_CUR, NULL);
  												break;
  											}
  											case mmioFOURCC('I','C','M','T'):
  											case DMUS_FOURCC_UCMT_CHUNK: {
  												TRACE_(dmfile)(": comment chunk (ignored)\n");
  												liMove.QuadPart = Chunk.dwSize;
  												IStream_Seek (pStream, liMove, STREAM_SEEK_CUR, NULL);
  												break;
  											}
  											default: {
  												TRACE_(dmfile)(": unknown chunk (irrelevant & skipping)\n");
  												liMove.QuadPart = Chunk.dwSize;
  												IStream_Seek (pStream, liMove, STREAM_SEEK_CUR, NULL);
  												break;						
  											}
  										}
  										TRACE_(dmfile)(": ListCount[0] = %d < ListSize[0] = %d\n", ListCount[0], ListSize[0]);
  									} while (ListCount[0] < ListSize[0]);
  									break;
  								}
  								case DMUS_FOURCC_TRACK_LIST: {
  								  TRACE_(dmfile)(": TRACK list\n");
  								  do {
  								    IStream_Read (pStream, &Chunk, sizeof(FOURCC)+sizeof(DWORD), NULL);
  								    ListCount[0] += sizeof(FOURCC) + sizeof(DWORD) + Chunk.dwSize;
                                                                      TRACE_(dmfile)(": %s chunk (size = %d)", debugstr_fourcc (Chunk.fccID), Chunk.dwSize);
  								    switch (Chunk.fccID) {
  								    default: {
  								      TRACE_(dmfile)(": unknown chunk (irrelevant & skipping)\n");
  								      liMove.QuadPart = Chunk.dwSize;
  								      IStream_Seek (pStream, liMove, STREAM_SEEK_CUR, NULL);
  								      break;						
  								    }
  								    }
                                                                      TRACE_(dmfile)(": ListCount[0] = %d < ListSize[0] = %d\n", ListCount[0], ListSize[0]);
  								  } while (ListCount[0] < ListSize[0]);
  								  break;
  								}
  							        default: {
  								  TRACE_(dmfile)(": unknown (skipping)\n");
  								  liMove.QuadPart = Chunk.dwSize - sizeof(FOURCC);
  								  IStream_Seek (pStream, liMove, STREAM_SEEK_CUR, NULL);
  								  break;						
  								}
  							}
  							break;
  						}	
  						default: {
  							TRACE_(dmfile)(": unknown chunk (irrelevant & skipping)\n");
  							liMove.QuadPart = Chunk.dwSize;
  							IStream_Seek (pStream, liMove, STREAM_SEEK_CUR, NULL);
  							break;						
  						}
  					}
  					TRACE_(dmfile)(": StreamCount[0] = %d < StreamSize[0] = %d\n", StreamCount, StreamSize);
  				} while (StreamCount < StreamSize);
  				break;
  			} else if (Chunk.fccID == mmioFOURCC('W','A','V','E')) {
  				TRACE_(dmfile)(": wave form (loading not yet implemented)\n");
  				liMove.QuadPart = StreamSize;
  				IStream_Seek (pStream, liMove, STREAM_SEEK_CUR, NULL); /* skip the rest of the chunk */
  			} else {
  				TRACE_(dmfile)(": unexpected chunk (loading failed)\n");
  				liMove.QuadPart = StreamSize;
  				IStream_Seek (pStream, liMove, STREAM_SEEK_CUR, NULL); /* skip the rest of the chunk */
  				return E_FAIL;
  			}
  		
  			TRACE_(dmfile)(": reading finished\n");
  			break;
  		}
  		default: {
  			TRACE_(dmfile)(": unexpected chunk; loading failed)\n");
  			liMove.QuadPart = Chunk.dwSize;
  			IStream_Seek (pStream, liMove, STREAM_SEEK_CUR, NULL); /* skip the rest of the chunk */
  			return DMUS_E_INVALIDFILE;
  		}
  	}	
  	
  	TRACE(": returning descriptor:\n%s\n", debugstr_DMUS_OBJECTDESC (pDesc));
  	
  	return S_OK;
  }
  
  static const IDirectMusicObjectVtbl DirectMusicSegment8_Object_Vtbl = {
    IDirectMusicSegment8Impl_IDirectMusicObject_QueryInterface,
    IDirectMusicSegment8Impl_IDirectMusicObject_AddRef,
    IDirectMusicSegment8Impl_IDirectMusicObject_Release,
    IDirectMusicSegment8Impl_IDirectMusicObject_GetDescriptor,
    IDirectMusicSegment8Impl_IDirectMusicObject_SetDescriptor,
    IDirectMusicSegment8Impl_IDirectMusicObject_ParseDescriptor
  };
  
  /* IDirectMusicSegment8Impl IPersistStream part: */
  static HRESULT WINAPI IDirectMusicSegment8Impl_IPersistStream_QueryInterface (LPPERSISTSTREAM iface, REFIID riid, LPVOID *ppobj) {
    ICOM_THIS_MULTI(IDirectMusicSegment8Impl, PersistStreamVtbl, iface);
    return IDirectMusicSegment8_QueryInterface(&This->IDirectMusicSegment8_iface, riid, ppobj);
  }
  
  static ULONG WINAPI IDirectMusicSegment8Impl_IPersistStream_AddRef (LPPERSISTSTREAM iface) {
    ICOM_THIS_MULTI(IDirectMusicSegment8Impl, PersistStreamVtbl, iface);
    return IDirectMusicSegment8_AddRef(&This->IDirectMusicSegment8_iface);
  }
  
  static ULONG WINAPI IDirectMusicSegment8Impl_IPersistStream_Release (LPPERSISTSTREAM iface) {
    ICOM_THIS_MULTI(IDirectMusicSegment8Impl, PersistStreamVtbl, iface);
    return IDirectMusicSegment8_Release(&This->IDirectMusicSegment8_iface);
  }
  
  static HRESULT WINAPI IDirectMusicSegment8Impl_IPersistStream_GetClassID (LPPERSISTSTREAM iface, CLSID* pClassID) {
    ICOM_THIS_MULTI(IDirectMusicSegment8Impl, PersistStreamVtbl, iface);
    TRACE("(%p, %p)\n", This, pClassID);
    *pClassID = CLSID_DirectMusicSegment;
    return S_OK;
  }
  
  static HRESULT WINAPI IDirectMusicSegment8Impl_IPersistStream_IsDirty (LPPERSISTSTREAM iface) {
    ICOM_THIS_MULTI(IDirectMusicSegment8Impl, PersistStreamVtbl, iface);
    FIXME("(%p): stub, always S_FALSE\n", This);
    return S_FALSE;
  }
  
  static HRESULT IDirectMusicSegment8Impl_IPersistStream_LoadTrack (LPPERSISTSTREAM iface, IStream* pClonedStream, IDirectMusicTrack** ppTrack, 
  								  DMUS_IO_TRACK_HEADER* pTrack_hdr) {
  
    ICOM_THIS_MULTI(IDirectMusicSegment8Impl, PersistStreamVtbl, iface);
    HRESULT hr = E_FAIL;
    IPersistStream* pPersistStream = NULL;
    
    hr = CoCreateInstance (&pTrack_hdr->guidClassID, NULL, CLSCTX_INPROC_SERVER, &IID_IDirectMusicTrack, (LPVOID*) ppTrack);
    if (FAILED(hr)) {
      ERR(": could not create object\n");
      return hr;
    }
    /* acquire PersistStream interface */
    hr = IDirectMusicTrack_QueryInterface (*ppTrack, &IID_IPersistStream, (LPVOID*) &pPersistStream);
    if (FAILED(hr)) {
      ERR(": could not acquire IPersistStream\n");
      return hr;
    }
    /* load */
    hr = IPersistStream_Load (pPersistStream, pClonedStream);
    if (FAILED(hr)) {
      ERR(": failed to load object\n");
      return hr;
    }
    
    /* release all loading-related stuff */
    IPersistStream_Release (pPersistStream);
  
    hr = IDirectMusicSegment8_InsertTrack(&This->IDirectMusicSegment8_iface, *ppTrack,
                                          pTrack_hdr->dwGroup); /* at dsPosition */
    if (FAILED(hr)) {
      ERR(": could not insert track\n");
      return hr;
    }
  
    return S_OK;
  }
  
  static HRESULT IDirectMusicSegment8Impl_IPersistStream_ParseTrackForm (LPPERSISTSTREAM iface, DMUS_PRIVATE_CHUNK* pChunk, IStream* pStm) {
  
    /*ICOM_THIS_MULTI(IDirectMusicSegment8Impl, PersistStreamVtbl, iface);*/
    HRESULT hr = E_FAIL;
    DMUS_PRIVATE_CHUNK Chunk;
    DWORD StreamSize, StreamCount, ListSize[3];
    LARGE_INTEGER liMove; /* used when skipping chunks */
  
    DMUS_IO_TRACK_HEADER        track_hdr;
    DMUS_IO_TRACK_EXTRAS_HEADER track_xhdr;
    IDirectMusicTrack*          pTrack = NULL;
  
    if (pChunk->fccID != DMUS_FOURCC_TRACK_FORM) {
      ERR_(dmfile)(": %s chunk should be a TRACK form\n", debugstr_fourcc (pChunk->fccID));
      return E_FAIL;
    }  
  
    StreamSize = pChunk->dwSize - sizeof(FOURCC);
    StreamCount = 0;
  
    do {
      IStream_Read (pStm, &Chunk, sizeof(FOURCC)+sizeof(DWORD), NULL);
      StreamCount += sizeof(FOURCC) + sizeof(DWORD) + Chunk.dwSize;
      TRACE_(dmfile)(": %s chunk (size = %d)", debugstr_fourcc (Chunk.fccID), Chunk.dwSize);
      
      switch (Chunk.fccID) {
      case DMUS_FOURCC_TRACK_CHUNK: {
        TRACE_(dmfile)(": track chunk\n");
        IStream_Read (pStm, &track_hdr, sizeof(DMUS_IO_TRACK_HEADER), NULL);
        TRACE_(dmfile)(" - class: %s\n", debugstr_guid (&track_hdr.guidClassID));
        TRACE_(dmfile)(" - dwGroup: %d\n", track_hdr.dwGroup);
        TRACE_(dmfile)(" - ckid: %s\n", debugstr_fourcc (track_hdr.ckid));
        TRACE_(dmfile)(" - fccType: %s\n", debugstr_fourcc (track_hdr.fccType));
        break;
      }
      case DMUS_FOURCC_TRACK_EXTRAS_CHUNK: {
        TRACE_(dmfile)(": track extras chunk\n");
        IStream_Read (pStm, &track_xhdr, sizeof(DMUS_IO_TRACK_EXTRAS_HEADER), NULL);
        break;
      }
  
      case DMUS_FOURCC_COMMANDTRACK_CHUNK: {
        TRACE_(dmfile)(": COMMANDTRACK track\n");
        liMove.QuadPart = Chunk.dwSize;
        IStream_Seek (pStm, liMove, STREAM_SEEK_CUR, NULL);
        break;
      }
  
      case FOURCC_LIST: {
        IStream_Read (pStm, &Chunk.fccID, sizeof(FOURCC), NULL);
        TRACE_(dmfile)(": LIST chunk of type %s", debugstr_fourcc(Chunk.fccID));
        ListSize[0] = Chunk.dwSize - sizeof(FOURCC);
        if (Chunk.fccID == track_hdr.fccType && 0 == track_hdr.ckid) {
  	LPSTREAM pClonedStream = NULL;
  
  	TRACE_(dmfile)(": TRACK list\n");
  
  	IStream_Clone (pStm, &pClonedStream);
  
  	liMove.QuadPart = 0;
  	liMove.QuadPart -= sizeof(FOURCC) + (sizeof(FOURCC)+sizeof(DWORD));
  	IStream_Seek (pClonedStream, liMove, STREAM_SEEK_CUR, NULL);
  	
  	hr = IDirectMusicSegment8Impl_IPersistStream_LoadTrack (iface, pClonedStream, &pTrack, &track_hdr);
  	if (FAILED(hr)) {
  	  ERR(": could not load track\n");
  	  return hr;
  	}
  	IStream_Release (pClonedStream);
  	
  	IDirectMusicTrack_Release(pTrack); pTrack = NULL; /* now we can release at as it inserted */
  
  	liMove.QuadPart = ListSize[0];
  	IStream_Seek (pStm, liMove, STREAM_SEEK_CUR, NULL);
  	
        } else {
  	TRACE_(dmfile)(": unknown (skipping)\n");
  	liMove.QuadPart = Chunk.dwSize;
  	IStream_Seek (pStm, liMove, STREAM_SEEK_CUR, NULL);
        }
        break;
      }
  
      case FOURCC_RIFF: {
        IStream_Read (pStm, &Chunk.fccID, sizeof(FOURCC), NULL);
        TRACE_(dmfile)(": RIFF chunk of type %s\n", debugstr_fourcc(Chunk.fccID));
  
        ListSize[0] = Chunk.dwSize - sizeof(FOURCC);
  
        if (Chunk.fccID == track_hdr.fccType && 0 == track_hdr.ckid) {	
  	LPSTREAM pClonedStream = NULL;
  
  	TRACE_(dmfile)(": TRACK RIFF\n");
  
  	IStream_Clone (pStm, &pClonedStream);
  	
  	liMove.QuadPart = 0;
  	liMove.QuadPart -= sizeof(FOURCC) + (sizeof(FOURCC)+sizeof(DWORD));
  	IStream_Seek (pClonedStream, liMove, STREAM_SEEK_CUR, NULL);
  	
  	hr = IDirectMusicSegment8Impl_IPersistStream_LoadTrack (iface, pClonedStream, &pTrack, &track_hdr);
  	if (FAILED(hr)) {
  	  ERR(": could not load track\n");
  	  return hr;
  	}
  	IStream_Release (pClonedStream);
  	
  	IDirectMusicTrack_Release(pTrack); pTrack = NULL; /* now we can release at as it inserted */
  
  	/** now safe move the cursor */
  	liMove.QuadPart = ListSize[0];
  	IStream_Seek (pStm, liMove, STREAM_SEEK_CUR, NULL);
  	 
        } else {
  	TRACE_(dmfile)(": unknown RIFF fmt (skipping)\n");
  	liMove.QuadPart = ListSize[0];
  	IStream_Seek (pStm, liMove, STREAM_SEEK_CUR, NULL);
        }
        break;
      }
  
      default: {
        if (0 == track_hdr.fccType && Chunk.fccID == track_hdr.ckid) {
  	LPSTREAM pClonedStream = NULL;
  
  	TRACE_(dmfile)(": TRACK solo\n");
  
  	IStream_Clone (pStm, &pClonedStream);
  	
  	liMove.QuadPart = 0;
  	liMove.QuadPart -= (sizeof(FOURCC) + sizeof(DWORD));
  	IStream_Seek (pClonedStream, liMove, STREAM_SEEK_CUR, NULL);
  
  	hr = IDirectMusicSegment8Impl_IPersistStream_LoadTrack (iface, pClonedStream, &pTrack, &track_hdr);
  	if (FAILED(hr)) {
  	  ERR(": could not load track\n");
  	  return hr;
  	}
  	IStream_Release (pClonedStream);
  	
  	IDirectMusicTrack_Release(pTrack); pTrack = NULL; /* now we can release at as it inserted */
  
  	liMove.QuadPart = Chunk.dwSize;
  	IStream_Seek (pStm, liMove, STREAM_SEEK_CUR, NULL);
  
  	break;
        }
  
        TRACE_(dmfile)(": unknown chunk (irrelevant & skipping)\n");
        liMove.QuadPart = Chunk.dwSize;
        IStream_Seek (pStm, liMove, STREAM_SEEK_CUR, NULL);
        break;						
      }
      }
      TRACE_(dmfile)(": StreamCount[0] = %d < StreamSize[0] = %d\n", StreamCount, StreamSize);
    } while (StreamCount < StreamSize);  
  
    return S_OK;
  }
  
  static HRESULT IDirectMusicSegment8Impl_IPersistStream_ParseTrackList (LPPERSISTSTREAM iface, DMUS_PRIVATE_CHUNK* pChunk, IStream* pStm, IDirectMusicSegment8Impl* This) {
  
    HRESULT hr = E_FAIL;
    DMUS_PRIVATE_CHUNK Chunk;
    DWORD StreamSize, ListSize[3], ListCount[3];
    LARGE_INTEGER liMove; /* used when skipping chunks */
  
    if (pChunk->fccID != DMUS_FOURCC_TRACK_LIST) {
      ERR_(dmfile)(": %s chunk should be a TRACK list\n", debugstr_fourcc (pChunk->fccID));
      return E_FAIL;
    }  
  
    ListSize[0] = pChunk->dwSize - sizeof(FOURCC);
    ListCount[0] = 0;
  
    do {
      IStream_Read (pStm, &Chunk, sizeof(FOURCC)+sizeof(DWORD), NULL);
      ListCount[0] += sizeof(FOURCC) + sizeof(DWORD) + Chunk.dwSize;
      TRACE_(dmfile)(": %s chunk (size = %d)", debugstr_fourcc (Chunk.fccID), Chunk.dwSize);
      switch (Chunk.fccID) { 
      case FOURCC_RIFF: {
        IStream_Read (pStm, &Chunk.fccID, sizeof(FOURCC), NULL);
        TRACE_(dmfile)(": RIFF chunk of type %s", debugstr_fourcc(Chunk.fccID));
        StreamSize = Chunk.dwSize - sizeof(FOURCC);
        switch (Chunk.fccID) {
        case  DMUS_FOURCC_TRACK_FORM: {
  	TRACE_(dmfile)(": TRACK form\n");
  	hr = IDirectMusicSegment8Impl_IPersistStream_ParseTrackForm (iface, &Chunk, pStm);
  	if (FAILED(hr)) return hr;	
  	break;
        }
        default: {
  	TRACE_(dmfile)(": unknown chunk (irrelevant & skipping)\n");
  	liMove.QuadPart = StreamSize;
  	IStream_Seek (pStm, liMove, STREAM_SEEK_CUR, NULL);
  	break;
        }
        }
        break;
      }
      default: {
        TRACE_(dmfile)(": unknown chunk (irrelevant & skipping)\n");
        liMove.QuadPart = Chunk.dwSize;
        IStream_Seek (pStm, liMove, STREAM_SEEK_CUR, NULL);
        break;						
      }
      }
      TRACE_(dmfile)(": ListCount[0] = %d < ListSize[0] = %d\n", ListCount[0], ListSize[0]);
    } while (ListCount[0] < ListSize[0]);
  
    return S_OK;
  }
  
  static HRESULT IDirectMusicSegment8Impl_IPersistStream_ParseSegmentForm (LPPERSISTSTREAM iface, DMUS_PRIVATE_CHUNK* pChunk, IStream* pStm, IDirectMusicSegment8Impl* This) {
  
    HRESULT hr = E_FAIL;
    DMUS_PRIVATE_CHUNK Chunk;
    DWORD StreamSize, StreamCount, ListSize[3], ListCount[3];
    LARGE_INTEGER liMove; /* used when skipping chunks */
  
    if (pChunk->fccID != DMUS_FOURCC_SEGMENT_FORM) {
      ERR_(dmfile)(": %s chunk should be a segment form\n", debugstr_fourcc (pChunk->fccID));
      return E_FAIL;
    }
  
    StreamSize = pChunk->dwSize - sizeof(FOURCC);
    StreamCount = 0;
  
    do {
      IStream_Read (pStm, &Chunk, sizeof(FOURCC)+sizeof(DWORD), NULL);
      StreamCount += sizeof(FOURCC) + sizeof(DWORD) + Chunk.dwSize;
      TRACE_(dmfile)(": %s chunk (size = %d)", debugstr_fourcc (Chunk.fccID), Chunk.dwSize);
      
      hr = IDirectMusicUtils_IPersistStream_ParseDescGeneric(&Chunk, pStm, This->pDesc);
      if (FAILED(hr)) return hr;
      
      if (hr == S_FALSE) {
        switch (Chunk.fccID) {
        case DMUS_FOURCC_SEGMENT_CHUNK: {
  	DWORD checkSz = sizeof(FOURCC);
  	TRACE_(dmfile)(": segment chunk\n");
  	/** DX 7 */
  	IStream_Read (pStm, &This->header.dwRepeats,    sizeof(This->header.dwRepeats), NULL);
  	checkSz += sizeof(This->header.dwRepeats);
  	IStream_Read (pStm, &This->header.mtLength,     sizeof(This->header.mtLength), NULL);
  	checkSz += sizeof(This->header.mtLength);
  	IStream_Read (pStm, &This->header.mtPlayStart,  sizeof(This->header.mtPlayStart), NULL);
  	checkSz += sizeof(This->header.mtPlayStart);
  	IStream_Read (pStm, &This->header.mtLoopStart,  sizeof(This->header.mtLoopStart), NULL);
  	checkSz += sizeof(This->header.mtLoopStart);
  	IStream_Read (pStm, &This->header.mtLoopEnd,    sizeof(This->header.mtLoopEnd), NULL);
  	checkSz += sizeof(This->header.mtLoopEnd);
  	IStream_Read (pStm, &This->header.dwResolution, sizeof(This->header.dwResolution), NULL);
  	checkSz += sizeof(This->header.dwResolution);
  	TRACE_(dmfile)("dwRepeats: %u\n", This->header.dwRepeats);
  	TRACE_(dmfile)("mtLength: %u\n",  This->header.mtLength);
  	TRACE_(dmfile)("mtPlayStart: %u\n",  This->header.mtPlayStart);
  	TRACE_(dmfile)("mtLoopStart: %u\n",  This->header.mtLoopStart);
  	TRACE_(dmfile)("mtLoopEnd: %u\n",  This->header.mtLoopEnd);
  	TRACE_(dmfile)("dwResolution: %u\n", This->header.dwResolution);
  	/** DX 8 */
  	if (Chunk.dwSize > checkSz) {
  	  IStream_Read (pStm, &This->header.rtLength,    sizeof(This->header.rtLength), NULL);
  	  checkSz += sizeof(This->header.rtLength);
  	  IStream_Read (pStm, &This->header.dwFlags,     sizeof(This->header.dwFlags), NULL);
  	  checkSz += sizeof(This->header.dwFlags);
  	}
  	/** DX 9 */
  	if (Chunk.dwSize > checkSz) {
  	  IStream_Read (pStm, &This->header.rtLoopStart,  sizeof(This->header.rtLoopStart), NULL);
  	  checkSz += sizeof(This->header.rtLoopStart);
  	  IStream_Read (pStm, &This->header.rtLoopEnd,    sizeof(This->header.rtLoopEnd), NULL);
  	  checkSz += sizeof(This->header.rtLoopEnd);
  	  IStream_Read (pStm, &This->header.rtPlayStart,  sizeof(This->header.rtPlayStart), NULL);
  	  checkSz += sizeof(This->header.rtPlayStart);
  	}
  	liMove.QuadPart = Chunk.dwSize - checkSz + sizeof(FOURCC);
  	IStream_Seek (pStm, liMove, STREAM_SEEK_CUR, NULL);
  	break;
        }
        case FOURCC_LIST: {
  	IStream_Read (pStm, &Chunk.fccID, sizeof(FOURCC), NULL);
  	TRACE_(dmfile)(": LIST chunk of type %s", debugstr_fourcc(Chunk.fccID));
  	ListSize[0] = Chunk.dwSize - sizeof(FOURCC);
  	ListCount[0] = 0;
  	switch (Chunk.fccID) {
  	case DMUS_FOURCC_UNFO_LIST: {
  	  TRACE_(dmfile)(": UNFO list\n");
  	  do {
  	    IStream_Read (pStm, &Chunk, sizeof(FOURCC)+sizeof(DWORD), NULL);
  	    ListCount[0] += sizeof(FOURCC) + sizeof(DWORD) + Chunk.dwSize;
              TRACE_(dmfile)(": %s chunk (size = %d)", debugstr_fourcc (Chunk.fccID), Chunk.dwSize);
  
  	    hr = IDirectMusicUtils_IPersistStream_ParseUNFOGeneric(&Chunk, pStm, This->pDesc);
  	    if (FAILED(hr)) return hr;
  	    
  	    if (hr == S_FALSE) {
  	      switch (Chunk.fccID) {
  	      default: {
  		TRACE_(dmfile)(": unknown chunk (irrelevant & skipping)\n");
  		liMove.QuadPart = Chunk.dwSize;
  		IStream_Seek (pStm, liMove, STREAM_SEEK_CUR, NULL);
  		break;						
  	      }
  	      }
  	    }
  
              TRACE_(dmfile)(": ListCount[0] = %d < ListSize[0] = %d\n", ListCount[0], ListSize[0]);
  	  } while (ListCount[0] < ListSize[0]);
  	  break;
  	}
  	case DMUS_FOURCC_TRACK_LIST: {
  	  TRACE_(dmfile)(": TRACK list\n");
  	  hr = IDirectMusicSegment8Impl_IPersistStream_ParseTrackList (iface, &Chunk, pStm, This);
  	  if (FAILED(hr)) return hr;
  	  break;
  	}
  	default: {
  	  TRACE_(dmfile)(": unknown (skipping)\n");
  	  liMove.QuadPart = Chunk.dwSize - sizeof(FOURCC);
  	  IStream_Seek (pStm, liMove, STREAM_SEEK_CUR, NULL);
  	  break;						
  	}
  	}
  	break;
        }
        default: {
  	TRACE_(dmfile)(": unknown chunk (irrelevant & skipping)\n");
  	liMove.QuadPart = Chunk.dwSize;
  	IStream_Seek (pStm, liMove, STREAM_SEEK_CUR, NULL);
  	break;						
        }
        }
      }
      TRACE_(dmfile)(": StreamCount[0] = %d < StreamSize[0] = %d\n", StreamCount, StreamSize);
    } while (StreamCount < StreamSize);
  
    return S_OK;
  }
  
  static HRESULT IDirectMusicSegment8Impl_IPersistStream_LoadWave (LPPERSISTSTREAM iface, IStream* pClonedStream, IDirectMusicObject** ppWaveObject) {
  
    HRESULT hr = E_FAIL;
    IPersistStream* pPersistStream = NULL;
    
    hr = CoCreateInstance (&CLSID_DirectSoundWave, NULL, CLSCTX_INPROC_SERVER, &IID_IDirectMusicObject, (LPVOID*) ppWaveObject);
    if (FAILED(hr)) {
      ERR(": could not create object\n");
      return hr;
    }
    /* acquire PersistStream interface */
    hr = IDirectMusicObject_QueryInterface (*ppWaveObject, &IID_IPersistStream, (LPVOID*) &pPersistStream);
    if (FAILED(hr)) {
      ERR(": could not acquire IPersistStream\n");
      return hr;
    }
    /* load */
    hr = IPersistStream_Load (pPersistStream, pClonedStream);
    if (FAILED(hr)) {
      ERR(": failed to load object\n");
      return hr;
    }
    
    /* release all loading-related stuff */
    IPersistStream_Release (pPersistStream);
  
    return S_OK;
  }
  
  static HRESULT WINAPI IDirectMusicSegment8Impl_IPersistStream_Load (LPPERSISTSTREAM iface, IStream* pStm) {
    ICOM_THIS_MULTI(IDirectMusicSegment8Impl, PersistStreamVtbl, iface);
  
    HRESULT hr;
    DMUS_PRIVATE_CHUNK Chunk;
    DWORD StreamSize;
    /*DWORD ListSize[3], ListCount[3];*/
    LARGE_INTEGER liMove; /* used when skipping chunks */
  
    TRACE("(%p, %p): Loading\n", This, pStm);
    hr = IStream_Read (pStm, &Chunk, sizeof(Chunk), NULL);
    if(hr != S_OK){
      WARN("IStream_Read failed: %08x\n", hr);
      return DMUS_E_UNSUPPORTED_STREAM;
    }
    TRACE_(dmfile)(": %s chunk (size = %d)", debugstr_fourcc (Chunk.fccID), Chunk.dwSize);
    switch (Chunk.fccID) {	
    case FOURCC_RIFF: {
      IStream_Read (pStm, &Chunk.fccID, sizeof(FOURCC), NULL);				
      TRACE_(dmfile)(": RIFF chunk of type %s", debugstr_fourcc(Chunk.fccID));
      StreamSize = Chunk.dwSize - sizeof(FOURCC);
      switch (Chunk.fccID) {
      case DMUS_FOURCC_SEGMENT_FORM: {
        TRACE_(dmfile)(": segment form\n");
        hr = IDirectMusicSegment8Impl_IPersistStream_ParseSegmentForm (iface, &Chunk, pStm, This);
        if (FAILED(hr)) return hr;
        break;
      }
      case mmioFOURCC('W','A','V','E'): {
        LPSTREAM pClonedStream = NULL;	
        IDirectMusicObject* pWave = NULL;
  
        FIXME_(dmfile)(": WAVE form (loading to be checked)\n");
  
        IStream_Clone (pStm, &pClonedStream);
  	
        liMove.QuadPart = - (LONGLONG)(sizeof(FOURCC) * 2 + sizeof(DWORD));
        IStream_Seek (pClonedStream, liMove, STREAM_SEEK_CUR, NULL);
  	
        hr = IDirectMusicSegment8Impl_IPersistStream_LoadWave (iface, pClonedStream, &pWave);
        if (FAILED(hr)) {
  	ERR(": could not load track\n");
  	return hr;
        }
        IStream_Release (pClonedStream);
        
        IDirectMusicTrack_Release(pWave); pWave = NULL; /* now we can release at as it inserted */
  
        liMove.QuadPart = StreamSize;
        IStream_Seek (pStm, liMove, STREAM_SEEK_CUR, NULL); /* skip the rest of the chunk */
        break;      
      }
      default: {
        TRACE_(dmfile)(": unexpected chunk (loading failed)\n");
        liMove.QuadPart = StreamSize;
        IStream_Seek (pStm, liMove, STREAM_SEEK_CUR, NULL); /* skip the rest of the chunk */
        return DMUS_E_UNSUPPORTED_STREAM;
      }
      }
      TRACE_(dmfile)(": reading finished\n");
      break;
    }
    default: {
      TRACE_(dmfile)(": unexpected chunk; loading failed)\n");
      return DMUS_E_UNSUPPORTED_STREAM;
    }
    }
    
    return S_OK;
  }
  
  static HRESULT WINAPI IDirectMusicSegment8Impl_IPersistStream_Save (LPPERSISTSTREAM iface, IStream* pStm, BOOL fClearDirty) {
    ICOM_THIS_MULTI(IDirectMusicSegment8Impl, PersistStreamVtbl, iface);
    FIXME("(%p): Saving not implemented yet\n", This);
    return E_NOTIMPL;
  }
  
  static HRESULT WINAPI IDirectMusicSegment8Impl_IPersistStream_GetSizeMax (LPPERSISTSTREAM iface, ULARGE_INTEGER* pcbSize) {
    ICOM_THIS_MULTI(IDirectMusicSegment8Impl, PersistStreamVtbl, iface);
    FIXME("(%p, %p): stub\n", This, pcbSize);
    return E_NOTIMPL;
  }
  
  static const IPersistStreamVtbl DirectMusicSegment8_PersistStream_Vtbl = {
    IDirectMusicSegment8Impl_IPersistStream_QueryInterface,
    IDirectMusicSegment8Impl_IPersistStream_AddRef,
    IDirectMusicSegment8Impl_IPersistStream_Release,
    IDirectMusicSegment8Impl_IPersistStream_GetClassID,
    IDirectMusicSegment8Impl_IPersistStream_IsDirty,
    IDirectMusicSegment8Impl_IPersistStream_Load,
    IDirectMusicSegment8Impl_IPersistStream_Save,
    IDirectMusicSegment8Impl_IPersistStream_GetSizeMax
  };
  
  /* for ClassFactory */
  HRESULT WINAPI create_dmsegment(REFIID lpcGUID, void **ppobj)
  {
    IDirectMusicSegment8Impl* obj;
    HRESULT hr;
  
    obj = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(IDirectMusicSegment8Impl));
    if (NULL == obj) {
      *ppobj = NULL;
      return E_OUTOFMEMORY;
    }
    obj->IDirectMusicSegment8_iface.lpVtbl = &dmsegment8_vtbl;
    obj->ObjectVtbl = &DirectMusicSegment8_Object_Vtbl;
    obj->PersistStreamVtbl = &DirectMusicSegment8_PersistStream_Vtbl;
    obj->pDesc = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(DMUS_OBJECTDESC));
    DM_STRUCT_INIT(obj->pDesc);
    obj->pDesc->dwValidData |= DMUS_OBJ_CLASS;
    obj->pDesc->guidClass = CLSID_DirectMusicSegment;
    obj->ref = 1;
    list_init (&obj->Tracks);
  
    DMIME_LockModule();
    hr = IDirectMusicSegment8_QueryInterface(&obj->IDirectMusicSegment8_iface, lpcGUID, ppobj);
    IDirectMusicSegment8_Release(&obj->IDirectMusicSegment8_iface);
  
    return hr;
  }
  