/* 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 General Public License as published by
 * the Free Software Foundation; either version 2 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 Library General Public License for more details.
 *
 * You should have received a copy of the GNU 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
 */
/* IDirectMusicSegment IUnknown part: */
static HRESULT WINAPI IDirectMusicSegment8Impl_IUnknown_QueryInterface (LPUNKNOWN iface, REFIID riid, LPVOID *ppobj) {
	ICOM_THIS_MULTI(IDirectMusicSegment8Impl, UnknownVtbl, iface);
	TRACE("(%p, %s, %p)\n", This, debugstr_dmguid(riid), ppobj);
	
	if (IsEqualIID (riid, &IID_IUnknown)) {
		*ppobj = (LPVOID)&This->UnknownVtbl;
		IUnknown_AddRef (iface);
		return S_OK;	
	} else if (IsEqualIID (riid, &IID_IDirectMusicSegment)
	|| IsEqualIID (riid, &IID_IDirectMusicSegment2)
	|| IsEqualIID (riid, &IID_IDirectMusicSegment8)) {
		*ppobj = (LPVOID)&This->SegmentVtbl;
		IUnknown_AddRef (iface);
		return S_OK;
	} else if (IsEqualIID (riid, &IID_IDirectMusicObject)) {
		*ppobj = (LPVOID)&This->ObjectVtbl;
		IUnknown_AddRef (iface);
		return S_OK;
	} else if (IsEqualIID (riid, &IID_IPersistStream)) {
		*ppobj = (LPVOID)&This->PersistStreamVtbl;
		IUnknown_AddRef (iface);
		return S_OK;
	}
	
	WARN("(%p, %s, %p): not found\n", This, debugstr_dmguid(riid), ppobj);
	return E_NOINTERFACE;
}

static ULONG WINAPI IDirectMusicSegment8Impl_IUnknown_AddRef (LPUNKNOWN iface) {
	ICOM_THIS_MULTI(IDirectMusicSegment8Impl, UnknownVtbl, iface);
        ULONG ref = InterlockedIncrement(&This->ref);

	TRACE("(%p): AddRef from %d\n", This, ref - 1);

	DMIME_LockModule();

	return ref;
}

static ULONG WINAPI IDirectMusicSegment8Impl_IUnknown_Release (LPUNKNOWN iface) {
	ICOM_THIS_MULTI(IDirectMusicSegment8Impl, UnknownVtbl, iface);
	ULONG ref = InterlockedDecrement(&This->ref);
	TRACE("(%p): ReleaseRef to %d\n", This, ref);
	
	if (ref == 0) {
		HeapFree(GetProcessHeap(), 0, This);
	}

	DMIME_UnlockModule();
	
	return ref;
}

static const IUnknownVtbl DirectMusicSegment8_Unknown_Vtbl = {
  IDirectMusicSegment8Impl_IUnknown_QueryInterface,
  IDirectMusicSegment8Impl_IUnknown_AddRef,
  IDirectMusicSegment8Impl_IUnknown_Release
};

/* IDirectMusicSegmentImpl IDirectMusicSegment part: */
static HRESULT WINAPI IDirectMusicSegment8Impl_IDirectMusicSegment8_QueryInterface (LPDIRECTMUSICSEGMENT8 iface, REFIID riid, LPVOID *ppobj) {
  ICOM_THIS_MULTI(IDirectMusicSegment8Impl, SegmentVtbl, iface);
  return IUnknown_QueryInterface ((LPUNKNOWN)&This->UnknownVtbl, riid, ppobj);
}

static ULONG WINAPI IDirectMusicSegment8Impl_IDirectMusicSegment8_AddRef (LPDIRECTMUSICSEGMENT8 iface) {
  ICOM_THIS_MULTI(IDirectMusicSegment8Impl, SegmentVtbl, iface);
  return IUnknown_AddRef ((LPUNKNOWN)&This->UnknownVtbl);
}

static ULONG WINAPI IDirectMusicSegment8Impl_IDirectMusicSegment8_Release (LPDIRECTMUSICSEGMENT8 iface) {
  ICOM_THIS_MULTI(IDirectMusicSegment8Impl, SegmentVtbl, iface);
  return IUnknown_Release ((LPUNKNOWN)&This->UnknownVtbl);
}

static HRESULT WINAPI IDirectMusicSegment8Impl_IDirectMusicSegment8_GetLength (LPDIRECTMUSICSEGMENT8 iface, MUSIC_TIME* pmtLength) {
  ICOM_THIS_MULTI(IDirectMusicSegment8Impl, SegmentVtbl, iface);
  TRACE("(%p, %p)\n", This, pmtLength);
  if (NULL == pmtLength) {
    return E_POINTER;
  }
  *pmtLength = This->header.mtLength;
  return S_OK;
}

static HRESULT WINAPI IDirectMusicSegment8Impl_IDirectMusicSegment8_SetLength (LPDIRECTMUSICSEGMENT8 iface, MUSIC_TIME mtLength) {
  ICOM_THIS_MULTI(IDirectMusicSegment8Impl, SegmentVtbl, iface);
  TRACE("(%p, %ld)\n", This, mtLength);
  This->header.mtLength = mtLength;
  return S_OK;
}

static HRESULT WINAPI IDirectMusicSegment8Impl_IDirectMusicSegment8_GetRepeats (LPDIRECTMUSICSEGMENT8 iface, DWORD* pdwRepeats) { 
  ICOM_THIS_MULTI(IDirectMusicSegment8Impl, SegmentVtbl, iface);
  TRACE("(%p, %p)\n", This, pdwRepeats);
  if (NULL == pdwRepeats) {
    return E_POINTER;
  }
  *pdwRepeats = This->header.dwRepeats;
  return S_OK;
}

static HRESULT WINAPI IDirectMusicSegment8Impl_IDirectMusicSegment8_SetRepeats (LPDIRECTMUSICSEGMENT8 iface, DWORD dwRepeats) {
  ICOM_THIS_MULTI(IDirectMusicSegment8Impl, SegmentVtbl, iface);
  TRACE("(%p, %d)\n", This, dwRepeats);
  This->header.dwRepeats = dwRepeats;
  return S_OK;
}

static HRESULT WINAPI IDirectMusicSegment8Impl_IDirectMusicSegment8_GetDefaultResolution (LPDIRECTMUSICSEGMENT8 iface, DWORD* pdwResolution) {
  ICOM_THIS_MULTI(IDirectMusicSegment8Impl, SegmentVtbl, iface);
  TRACE("(%p, %p)\n", This, pdwResolution);
  if (NULL == pdwResolution) {
    return E_POINTER;
  }
  *pdwResolution = This->header.dwResolution;
  return S_OK;
}

static HRESULT WINAPI IDirectMusicSegment8Impl_IDirectMusicSegment8_SetDefaultResolution (LPDIRECTMUSICSEGMENT8 iface, DWORD dwResolution) {
  ICOM_THIS_MULTI(IDirectMusicSegment8Impl, SegmentVtbl, iface);
  TRACE("(%p, %d)\n", This, dwResolution);
  This->header.dwResolution = dwResolution;
  return S_OK;
}

static HRESULT WINAPI IDirectMusicSegment8Impl_IDirectMusicSegment8_GetTrack (LPDIRECTMUSICSEGMENT8 iface, REFGUID rguidType, DWORD dwGroupBits, DWORD dwIndex, IDirectMusicTrack** ppTrack) {
  ICOM_THIS_MULTI(IDirectMusicSegment8Impl, SegmentVtbl, 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 CLSID are equals
       * and the unqiue way to get it its 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_IDirectMusicSegment8_GetTrackGroup (LPDIRECTMUSICSEGMENT8 iface, IDirectMusicTrack* pTrack, DWORD* pdwGroupBits) {
  ICOM_THIS_MULTI(IDirectMusicSegment8Impl, SegmentVtbl, 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_IDirectMusicSegment8_InsertTrack (LPDIRECTMUSICSEGMENT8 iface, IDirectMusicTrack* pTrack, DWORD dwGroupBits) {
  ICOM_THIS_MULTI(IDirectMusicSegment8Impl, SegmentVtbl, 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) {
    ERR(": no more memory\n");
    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_IDirectMusicSegment8_RemoveTrack (LPDIRECTMUSICSEGMENT8 iface, IDirectMusicTrack* pTrack) {
  ICOM_THIS_MULTI(IDirectMusicSegment8Impl, SegmentVtbl, 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_IDirectMusicSegment8_InitPlay (LPDIRECTMUSICSEGMENT8 iface, IDirectMusicSegmentState** ppSegState, IDirectMusicPerformance* pPerformance, DWORD dwFlags) {
  ICOM_THIS_MULTI(IDirectMusicSegment8Impl, SegmentVtbl, iface);
  HRESULT hr;
  FIXME("(%p, %p, %p, %d): semi-stub\n", This, ppSegState, pPerformance, dwFlags);
  if (NULL == ppSegState) {
    return E_POINTER;
  }
  hr = DMUSIC_CreateDirectMusicSegmentStateImpl(&IID_IDirectMusicSegmentState, (void**) ppSegState, NULL);
  if (FAILED(hr)) {
    return hr;
  }
  /* TODO: DMUS_SEGF_FLAGS */
  return S_OK;
}

static HRESULT WINAPI IDirectMusicSegment8Impl_IDirectMusicSegment8_GetGraph (LPDIRECTMUSICSEGMENT8 iface, IDirectMusicGraph** ppGraph) {
  ICOM_THIS_MULTI(IDirectMusicSegment8Impl, SegmentVtbl, 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 
   * http://msdn.microsoft.com/archive/default.asp?url=/archive/en-us/directx9_c/directx/htm/idirectmusicsegment8getgraph.asp
   * "...The segment object implements IDirectMusicGraph directly..."
   */
  *ppGraph = This->pGraph;
  IDirectMusicGraph_AddRef(This->pGraph);
  return S_OK;
}

static HRESULT WINAPI IDirectMusicSegment8Impl_IDirectMusicSegment8_SetGraph (LPDIRECTMUSICSEGMENT8 iface, IDirectMusicGraph* pGraph) {
  ICOM_THIS_MULTI(IDirectMusicSegment8Impl, SegmentVtbl, 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_IDirectMusicSegment8_AddNotificationType (LPDIRECTMUSICSEGMENT8 iface, REFGUID rguidNotificationType) {
  ICOM_THIS_MULTI(IDirectMusicSegment8Impl, SegmentVtbl, iface);
  FIXME("(%p, %s): stub\n", This, debugstr_dmguid(rguidNotificationType));
  return S_OK;
}

static HRESULT WINAPI IDirectMusicSegment8Impl_IDirectMusicSegment8_RemoveNotificationType (LPDIRECTMUSICSEGMENT8 iface, REFGUID rguidNotificationType) {
  ICOM_THIS_MULTI(IDirectMusicSegment8Impl, SegmentVtbl, iface);
  FIXME("(%p, %s): stub\n", This, debugstr_dmguid(rguidNotificationType));
  return S_OK;
}

static HRESULT WINAPI IDirectMusicSegment8Impl_IDirectMusicSegment8_GetParam (LPDIRECTMUSICSEGMENT8 iface, REFGUID rguidType, DWORD dwGroupBits, DWORD dwIndex, MUSIC_TIME mtTime, MUSIC_TIME* pmtNext, void* pParam) {
  ICOM_THIS_MULTI(IDirectMusicSegment8Impl, SegmentVtbl, 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, %ld, %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);

      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_IDirectMusicSegment8_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_IDirectMusicSegment8_SetParam (LPDIRECTMUSICSEGMENT8 iface, REFGUID rguidType, DWORD dwGroupBits, DWORD dwIndex, MUSIC_TIME mtTime, void* pParam) {
  ICOM_THIS_MULTI(IDirectMusicSegment8Impl, SegmentVtbl, iface);
  FIXME("(%p, %s, %d, %d, %ld, %p): stub\n", This, debugstr_dmguid(rguidType), dwGroupBits, dwIndex, mtTime, pParam);
  return S_OK;
}

static HRESULT WINAPI IDirectMusicSegment8Impl_IDirectMusicSegment8_Clone (LPDIRECTMUSICSEGMENT8 iface, MUSIC_TIME mtStart, MUSIC_TIME mtEnd, IDirectMusicSegment** ppSegment) {
  ICOM_THIS_MULTI(IDirectMusicSegment8Impl, SegmentVtbl, iface);
  FIXME("(%p, %ld, %ld, %p): stub\n", This, mtStart, mtEnd, ppSegment);
  return S_OK;
}

static HRESULT WINAPI IDirectMusicSegment8Impl_IDirectMusicSegment8_SetStartPoint (LPDIRECTMUSICSEGMENT8 iface, MUSIC_TIME mtStart) {
  ICOM_THIS_MULTI(IDirectMusicSegment8Impl, SegmentVtbl, iface);
  TRACE("(%p, %ld)\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_IDirectMusicSegment8_GetStartPoint (LPDIRECTMUSICSEGMENT8 iface, MUSIC_TIME* pmtStart) {
  ICOM_THIS_MULTI(IDirectMusicSegment8Impl, SegmentVtbl, iface);
  TRACE("(%p, %p)\n", This, pmtStart);
  if (NULL == pmtStart) {
    return E_POINTER;
  }
  *pmtStart = This->header.mtPlayStart;
  return S_OK;
}

static HRESULT WINAPI IDirectMusicSegment8Impl_IDirectMusicSegment8_SetLoopPoints (LPDIRECTMUSICSEGMENT8 iface, MUSIC_TIME mtStart, MUSIC_TIME mtEnd) {
  ICOM_THIS_MULTI(IDirectMusicSegment8Impl, SegmentVtbl, iface);
  TRACE("(%p, %ld, %ld)\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_IDirectMusicSegment8_GetLoopPoints (LPDIRECTMUSICSEGMENT8 iface, MUSIC_TIME* pmtStart, MUSIC_TIME* pmtEnd) {
  ICOM_THIS_MULTI(IDirectMusicSegment8Impl, SegmentVtbl, 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_IDirectMusicSegment8_SetPChannelsUsed (LPDIRECTMUSICSEGMENT8 iface, DWORD dwNumPChannels, DWORD* paPChannels) {
	ICOM_THIS_MULTI(IDirectMusicSegment8Impl, SegmentVtbl, iface);
	FIXME("(%p, %d, %p): stub\n", This, dwNumPChannels, paPChannels);
	return S_OK;
}

static HRESULT WINAPI IDirectMusicSegment8Impl_IDirectMusicSegment8_SetTrackConfig (LPDIRECTMUSICSEGMENT8 iface, REFGUID rguidTrackClassID, DWORD dwGroupBits, DWORD dwIndex, DWORD dwFlagsOn, DWORD dwFlagsOff) {
	ICOM_THIS_MULTI(IDirectMusicSegment8Impl, SegmentVtbl, 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_IDirectMusicSegment8_GetAudioPathConfig (LPDIRECTMUSICSEGMENT8 iface, IUnknown** ppAudioPathConfig){
	ICOM_THIS_MULTI(IDirectMusicSegment8Impl, SegmentVtbl, iface);
	FIXME("(%p, %p): stub\n", This, ppAudioPathConfig);
	return S_OK;
}

static HRESULT WINAPI IDirectMusicSegment8Impl_IDirectMusicSegment8_Compose (LPDIRECTMUSICSEGMENT8 iface, MUSIC_TIME mtTime, IDirectMusicSegment* pFromSegment, IDirectMusicSegment* pToSegment, IDirectMusicSegment** ppComposedSegment) {
	ICOM_THIS_MULTI(IDirectMusicSegment8Impl, SegmentVtbl, iface);
	FIXME("(%p, %ld, %p, %p, %p): stub\n", This, mtTime, pFromSegment, pToSegment, ppComposedSegment);
	return S_OK;
}

static HRESULT WINAPI IDirectMusicSegment8Impl_IDirectMusicSegment8_Download (LPDIRECTMUSICSEGMENT8 iface, IUnknown *pAudioPath) {
	ICOM_THIS_MULTI(IDirectMusicSegment8Impl, SegmentVtbl, iface);
	FIXME("(%p, %p): stub\n", This, pAudioPath);
	return S_OK;
}

static HRESULT WINAPI IDirectMusicSegment8Impl_IDirectMusicSegment8_Unload (LPDIRECTMUSICSEGMENT8 iface, IUnknown *pAudioPath) {
	ICOM_THIS_MULTI(IDirectMusicSegment8Impl, SegmentVtbl, iface);
	FIXME("(%p, %p): stub\n", This, pAudioPath);
	return S_OK;
}

static const IDirectMusicSegment8Vtbl DirectMusicSegment8_Segment_Vtbl = {
	IDirectMusicSegment8Impl_IDirectMusicSegment8_QueryInterface,
	IDirectMusicSegment8Impl_IDirectMusicSegment8_AddRef,
	IDirectMusicSegment8Impl_IDirectMusicSegment8_Release,
	IDirectMusicSegment8Impl_IDirectMusicSegment8_GetLength,
	IDirectMusicSegment8Impl_IDirectMusicSegment8_SetLength,
	IDirectMusicSegment8Impl_IDirectMusicSegment8_GetRepeats,
	IDirectMusicSegment8Impl_IDirectMusicSegment8_SetRepeats,
	IDirectMusicSegment8Impl_IDirectMusicSegment8_GetDefaultResolution,
	IDirectMusicSegment8Impl_IDirectMusicSegment8_SetDefaultResolution,
	IDirectMusicSegment8Impl_IDirectMusicSegment8_GetTrack,
	IDirectMusicSegment8Impl_IDirectMusicSegment8_GetTrackGroup,
	IDirectMusicSegment8Impl_IDirectMusicSegment8_InsertTrack,
	IDirectMusicSegment8Impl_IDirectMusicSegment8_RemoveTrack,
	IDirectMusicSegment8Impl_IDirectMusicSegment8_InitPlay,
	IDirectMusicSegment8Impl_IDirectMusicSegment8_GetGraph,
	IDirectMusicSegment8Impl_IDirectMusicSegment8_SetGraph,
	IDirectMusicSegment8Impl_IDirectMusicSegment8_AddNotificationType,
	IDirectMusicSegment8Impl_IDirectMusicSegment8_RemoveNotificationType,
	IDirectMusicSegment8Impl_IDirectMusicSegment8_GetParam,
	IDirectMusicSegment8Impl_IDirectMusicSegment8_SetParam,
	IDirectMusicSegment8Impl_IDirectMusicSegment8_Clone,
	IDirectMusicSegment8Impl_IDirectMusicSegment8_SetStartPoint,
	IDirectMusicSegment8Impl_IDirectMusicSegment8_GetStartPoint,
	IDirectMusicSegment8Impl_IDirectMusicSegment8_SetLoopPoints,
	IDirectMusicSegment8Impl_IDirectMusicSegment8_GetLoopPoints,
	IDirectMusicSegment8Impl_IDirectMusicSegment8_SetPChannelsUsed,
	IDirectMusicSegment8Impl_IDirectMusicSegment8_SetTrackConfig,
	IDirectMusicSegment8Impl_IDirectMusicSegment8_GetAudioPathConfig,
	IDirectMusicSegment8Impl_IDirectMusicSegment8_Compose,
	IDirectMusicSegment8Impl_IDirectMusicSegment8_Download,
	IDirectMusicSegment8Impl_IDirectMusicSegment8_Unload
};

/* IDirectMusicSegment8Impl IDirectMusicObject part: */
static HRESULT WINAPI IDirectMusicSegment8Impl_IDirectMusicObject_QueryInterface (LPDIRECTMUSICOBJECT iface, REFIID riid, LPVOID *ppobj) {
	ICOM_THIS_MULTI(IDirectMusicSegment8Impl, ObjectVtbl, iface);
	return IUnknown_QueryInterface ((LPUNKNOWN)&This->UnknownVtbl, riid, ppobj);
}

static ULONG WINAPI IDirectMusicSegment8Impl_IDirectMusicObject_AddRef (LPDIRECTMUSICOBJECT iface) {
	ICOM_THIS_MULTI(IDirectMusicSegment8Impl, ObjectVtbl, iface);
	return IUnknown_AddRef ((LPUNKNOWN)&This->UnknownVtbl);
}

static ULONG WINAPI IDirectMusicSegment8Impl_IDirectMusicObject_Release (LPDIRECTMUSICOBJECT iface) {
	ICOM_THIS_MULTI(IDirectMusicSegment8Impl, ObjectVtbl, iface);
	return IUnknown_Release ((LPUNKNOWN)&This->UnknownVtbl);
}

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)
		memcpy (&This->pDesc->guidObject, &pDesc->guidObject, sizeof (pDesc->guidObject));
	if (pDesc->dwValidData & DMUS_OBJ_CLASS)
		memcpy (&This->pDesc->guidClass, &pDesc->guidClass, sizeof (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)
		memcpy (&This->pDesc->vVersion, &pDesc->vVersion, sizeof (pDesc->vVersion));				
	if (pDesc->dwValidData & DMUS_OBJ_DATE)
		memcpy (&This->pDesc->ftDate, &pDesc->ftDate, sizeof (pDesc->ftDate));				
	if (pDesc->dwValidData & DMUS_OBJ_MEMORY) {
		memcpy (&This->pDesc->llMemLength, &pDesc->llMemLength, sizeof (pDesc->llMemLength));				
		memcpy (This->pDesc->pbMemData, pDesc->pbMemData, sizeof (pDesc->pbMemData));
	}
	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;
	memcpy (&pDesc->guidClass, &CLSID_DirectMusicSegment, sizeof(CLSID));
	
	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 (irrevelant & 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 (irrevelant & 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 (irrevelant & 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 IUnknown_QueryInterface ((LPUNKNOWN)&This->UnknownVtbl, riid, ppobj);
}

static ULONG WINAPI IDirectMusicSegment8Impl_IPersistStream_AddRef (LPPERSISTSTREAM iface) {
  ICOM_THIS_MULTI(IDirectMusicSegment8Impl, PersistStreamVtbl, iface);
  return IUnknown_AddRef ((LPUNKNOWN)&This->UnknownVtbl);
}

static ULONG WINAPI IDirectMusicSegment8Impl_IPersistStream_Release (LPPERSISTSTREAM iface) {
  ICOM_THIS_MULTI(IDirectMusicSegment8Impl, PersistStreamVtbl, iface);
  return IUnknown_Release ((LPUNKNOWN)&This->UnknownVtbl);
}

static HRESULT WINAPI IDirectMusicSegment8Impl_IPersistStream_GetClassID (LPPERSISTSTREAM iface, CLSID* pClassID) {
  ICOM_THIS_MULTI(IDirectMusicSegment8Impl, PersistStreamVtbl, iface);
  TRACE("(%p, %p)\n", This, pClassID);
  memcpy(pClassID, &CLSID_DirectMusicSegment, sizeof(CLSID));
  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 = IDirectMusicSegment8Impl_IDirectMusicSegment8_InsertTrack ((LPDIRECTMUSICSEGMENT8)&This->SegmentVtbl, *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], ListCount[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 chunck\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 chunck\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);
      ListCount[0] = 0;
      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 (irrevelant & 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, StreamCount, 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);
      StreamCount = 0;
      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 (irrevelant & skipping)\n");
	liMove.QuadPart = StreamSize;
	IStream_Seek (pStm, liMove, STREAM_SEEK_CUR, NULL);
	break;
      }
      }
      break;
    }
    default: {
      TRACE_(dmfile)(": unknown chunk (irrevelant & 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");
#if 1
	/** 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: %lu\n",  This->header.mtLength);
	TRACE_(dmfile)("mtPlayStart: %lu\n",  This->header.mtPlayStart);
	TRACE_(dmfile)("mtLoopStart: %lu\n",  This->header.mtLoopStart);
	TRACE_(dmfile)("mtLoopEnd: %lu\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);
	}
#endif
	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 (irrevelant & 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 (irrevelant & 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, StreamCount;
  /*DWORD ListSize[3], ListCount[3];*/
  LARGE_INTEGER liMove; /* used when skipping chunks */
  
  
  TRACE("(%p, %p): Loading\n", This, pStm);
  IStream_Read (pStm, &Chunk, sizeof(FOURCC)+sizeof(DWORD), NULL);
  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);
    StreamCount = 0;
    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 = 0;
      liMove.QuadPart -= sizeof(FOURCC) + (sizeof(FOURCC)+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 E_FAIL;
    }
    }
    TRACE_(dmfile)(": reading finished\n");
    break;
  }
  default: {
    TRACE_(dmfile)(": unexpected chunk; loading failed)\n");
    liMove.QuadPart = Chunk.dwSize;
    IStream_Seek (pStm, liMove, STREAM_SEEK_CUR, NULL); /* skip the rest of the chunk */
    return E_FAIL;
  }
  }
  
  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 DMUSIC_CreateDirectMusicSegmentImpl (LPCGUID lpcGUID, LPVOID* ppobj, LPUNKNOWN pUnkOuter) {
  IDirectMusicSegment8Impl* obj;
  
  obj = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(IDirectMusicSegment8Impl));
  if (NULL == obj) {
    *ppobj = NULL;
    return E_OUTOFMEMORY;
  }
  obj->UnknownVtbl = &DirectMusicSegment8_Unknown_Vtbl;
  obj->SegmentVtbl = &DirectMusicSegment8_Segment_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;
  memcpy (&obj->pDesc->guidClass, &CLSID_DirectMusicSegment, sizeof (CLSID));
  obj->ref = 0; /* will be inited by QueryInterface */
  list_init (&obj->Tracks);
  
  return IDirectMusicSegment8Impl_IUnknown_QueryInterface ((LPUNKNOWN)&obj->UnknownVtbl, lpcGUID, ppobj);
}