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style.c

/* IDirectMusicStyle8 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 "dmstyle_private.h"

WINE_DEFAULT_DEBUG_CHANNEL(dmstyle);
WINE_DECLARE_DEBUG_CHANNEL(dmfile);

static ULONG WINAPI IDirectMusicStyle8Impl_IUnknown_AddRef (LPUNKNOWN iface);
static ULONG WINAPI IDirectMusicStyle8Impl_IDirectMusicStyle8_AddRef (LPDIRECTMUSICSTYLE8 iface);
static ULONG WINAPI IDirectMusicStyle8Impl_IDirectMusicObject_AddRef (LPDIRECTMUSICOBJECT iface);
static ULONG WINAPI IDirectMusicStyle8Impl_IPersistStream_AddRef (LPPERSISTSTREAM iface);

/*****************************************************************************
 * IDirectMusicStyleImpl implementation
 */
/* IDirectMusicStyleImpl IUnknown part: */
static HRESULT WINAPI IDirectMusicStyle8Impl_IUnknown_QueryInterface (LPUNKNOWN iface, REFIID riid, LPVOID *ppobj) {
      ICOM_THIS_MULTI(IDirectMusicStyle8Impl, UnknownVtbl, iface);
      TRACE("(%p, %s, %p)\n", This, debugstr_dmguid(riid), ppobj);
      
      if (IsEqualIID (riid, &IID_IUnknown)) {
            *ppobj = &This->UnknownVtbl;
            IDirectMusicStyle8Impl_IUnknown_AddRef ((LPUNKNOWN)&This->UnknownVtbl);
            return S_OK;      
      } else if (IsEqualIID (riid, &IID_IDirectMusicStyle)) {
            *ppobj = &This->StyleVtbl;
            IDirectMusicStyle8Impl_IDirectMusicStyle8_AddRef ((LPDIRECTMUSICSTYLE8)&This->StyleVtbl);
            return S_OK;
      } else if (IsEqualIID (riid, &IID_IDirectMusicStyle8)) {
            *ppobj = &This->StyleVtbl;
            IDirectMusicStyle8Impl_IDirectMusicStyle8_AddRef ((LPDIRECTMUSICSTYLE8)&This->StyleVtbl);
            return S_OK;
      } else if (IsEqualIID (riid, &IID_IDirectMusicObject)) {
            *ppobj = &This->ObjectVtbl;
            IDirectMusicStyle8Impl_IDirectMusicObject_AddRef ((LPDIRECTMUSICOBJECT)&This->ObjectVtbl);            
            return S_OK;
      } else if (IsEqualIID (riid, &IID_IPersistStream)) {
            *ppobj = &This->PersistStreamVtbl;
            IDirectMusicStyle8Impl_IPersistStream_AddRef ((LPPERSISTSTREAM)&This->PersistStreamVtbl);       
            return S_OK;
      }
      
      WARN("(%p, %s, %p): not found\n", This, debugstr_dmguid(riid), ppobj);
      return E_NOINTERFACE;
}

static ULONG WINAPI IDirectMusicStyle8Impl_IUnknown_AddRef (LPUNKNOWN iface) {
      ICOM_THIS_MULTI(IDirectMusicStyle8Impl, UnknownVtbl, iface);
        ULONG ref = InterlockedIncrement(&This->ref);

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

      DMSTYLE_LockModule();

      return ref;
}

static ULONG WINAPI IDirectMusicStyle8Impl_IUnknown_Release (LPUNKNOWN iface) {
      ICOM_THIS_MULTI(IDirectMusicStyle8Impl, UnknownVtbl, iface);
      ULONG ref = InterlockedDecrement(&This->ref);

      TRACE("(%p): ReleaseRef to %d\n", This, ref);

      if (ref == 0) {
            HeapFree(GetProcessHeap(), 0, This);
      }
      
      DMSTYLE_UnlockModule();
      
      return ref;
}

static const IUnknownVtbl DirectMusicStyle8_Unknown_Vtbl = {
      IDirectMusicStyle8Impl_IUnknown_QueryInterface,
      IDirectMusicStyle8Impl_IUnknown_AddRef,
      IDirectMusicStyle8Impl_IUnknown_Release
};

/* IDirectMusicStyle8Impl IDirectMusicStyle8 part: */
static HRESULT WINAPI IDirectMusicStyle8Impl_IDirectMusicStyle8_QueryInterface (LPDIRECTMUSICSTYLE8 iface, REFIID riid, LPVOID *ppobj) {
      ICOM_THIS_MULTI(IDirectMusicStyle8Impl, StyleVtbl, iface);
      return IDirectMusicStyle8Impl_IUnknown_QueryInterface ((LPUNKNOWN)&This->UnknownVtbl, riid, ppobj);
}

static ULONG WINAPI IDirectMusicStyle8Impl_IDirectMusicStyle8_AddRef (LPDIRECTMUSICSTYLE8 iface) {
      ICOM_THIS_MULTI(IDirectMusicStyle8Impl, StyleVtbl, iface);
      return IDirectMusicStyle8Impl_IUnknown_AddRef ((LPUNKNOWN)&This->UnknownVtbl);
}

static ULONG WINAPI IDirectMusicStyle8Impl_IDirectMusicStyle8_Release (LPDIRECTMUSICSTYLE8 iface) {
      ICOM_THIS_MULTI(IDirectMusicStyle8Impl, StyleVtbl, iface);
      return IDirectMusicStyle8Impl_IUnknown_Release ((LPUNKNOWN)&This->UnknownVtbl);
}

/* IDirectMusicStyle8Impl IDirectMusicStyle(8) part: */
static HRESULT WINAPI IDirectMusicStyle8Impl_IDirectMusicStyle8_GetBand (LPDIRECTMUSICSTYLE8 iface, WCHAR* pwszName, IDirectMusicBand** ppBand) {
      ICOM_THIS_MULTI(IDirectMusicStyle8Impl, StyleVtbl, iface);
      FIXME("(%p, %p, %p): stub\n", This, pwszName, ppBand);
      return S_OK;
}

static HRESULT WINAPI IDirectMusicStyle8Impl_IDirectMusicStyle8_EnumBand (LPDIRECTMUSICSTYLE8 iface, DWORD dwIndex, WCHAR* pwszName) {
      ICOM_THIS_MULTI(IDirectMusicStyle8Impl, StyleVtbl, iface);
      FIXME("(%p, %d, %p): stub\n", This, dwIndex, pwszName);
      return S_OK;
}

static HRESULT WINAPI IDirectMusicStyle8Impl_IDirectMusicStyle8_GetDefaultBand (LPDIRECTMUSICSTYLE8 iface, IDirectMusicBand** ppBand) {
      ICOM_THIS_MULTI(IDirectMusicStyle8Impl, StyleVtbl, iface);
      FIXME("(%p, %p): stub\n", This, ppBand);
      return S_OK;
}

static HRESULT WINAPI IDirectMusicStyle8Impl_IDirectMusicStyle8_EnumMotif (LPDIRECTMUSICSTYLE8 iface, DWORD dwIndex, WCHAR* pwszName) {
      ICOM_THIS_MULTI(IDirectMusicStyle8Impl, StyleVtbl, iface);
      FIXME("(%p, %d, %p): stub\n", This, dwIndex, pwszName);
      return S_OK;
}

static HRESULT WINAPI IDirectMusicStyle8Impl_IDirectMusicStyle8_GetMotif (LPDIRECTMUSICSTYLE8 iface, WCHAR* pwszName, IDirectMusicSegment** ppSegment) {
      ICOM_THIS_MULTI(IDirectMusicStyle8Impl, StyleVtbl, iface);
      FIXME("(%p, %p, %p): stub\n", This, pwszName, ppSegment);
      return S_OK;
}

static HRESULT WINAPI IDirectMusicStyle8Impl_IDirectMusicStyle8_GetDefaultChordMap (LPDIRECTMUSICSTYLE8 iface, IDirectMusicChordMap** ppChordMap) {
      ICOM_THIS_MULTI(IDirectMusicStyle8Impl, StyleVtbl, iface);
      FIXME("(%p, %p): stub\n", This, ppChordMap);
      return S_OK;
}

static HRESULT WINAPI IDirectMusicStyle8Impl_IDirectMusicStyle8_EnumChordMap (LPDIRECTMUSICSTYLE8 iface, DWORD dwIndex, WCHAR* pwszName) {
      ICOM_THIS_MULTI(IDirectMusicStyle8Impl, StyleVtbl, iface);
      FIXME("(%p, %d, %p): stub\n", This, dwIndex, pwszName);
      return S_OK;
}

static HRESULT WINAPI IDirectMusicStyle8Impl_IDirectMusicStyle8_GetChordMap (LPDIRECTMUSICSTYLE8 iface, WCHAR* pwszName, IDirectMusicChordMap** ppChordMap) {
      ICOM_THIS_MULTI(IDirectMusicStyle8Impl, StyleVtbl, iface);
      FIXME("(%p, %p, %p): stub\n", This, pwszName, ppChordMap);
      return S_OK;
}

static HRESULT WINAPI IDirectMusicStyle8Impl_IDirectMusicStyle8_GetTimeSignature (LPDIRECTMUSICSTYLE8 iface, DMUS_TIMESIGNATURE* pTimeSig) {
      ICOM_THIS_MULTI(IDirectMusicStyle8Impl, StyleVtbl, iface);
      FIXME("(%p, %p): stub\n", This, pTimeSig);
      return S_OK;
}

static HRESULT WINAPI IDirectMusicStyle8Impl_IDirectMusicStyle8_GetEmbellishmentLength (LPDIRECTMUSICSTYLE8 iface, DWORD dwType, DWORD dwLevel, DWORD* pdwMin, DWORD* pdwMax) {
      ICOM_THIS_MULTI(IDirectMusicStyle8Impl, StyleVtbl, iface);
      FIXME("(%p, %d, %d, %p, %p): stub\n", This, dwType, dwLevel, pdwMin, pdwMax);
      return S_OK;
}

static HRESULT WINAPI IDirectMusicStyle8Impl_IDirectMusicStyle8_GetTempo (LPDIRECTMUSICSTYLE8 iface, double* pTempo) {
      ICOM_THIS_MULTI(IDirectMusicStyle8Impl, StyleVtbl, iface);
      FIXME("(%p, %p): stub\n", This, pTempo);
      return S_OK;
}

static HRESULT WINAPI IDirectMusicStyle8Impl_IDirectMusicStyle8_EnumPattern (LPDIRECTMUSICSTYLE8 iface, DWORD dwIndex, DWORD dwPatternType, WCHAR* pwszName) {
      ICOM_THIS_MULTI(IDirectMusicStyle8Impl, StyleVtbl, iface);
      FIXME("(%p, %d, %d, %p): stub\n", This, dwIndex, dwPatternType, pwszName);
      return S_OK;
}

static const IDirectMusicStyle8Vtbl DirectMusicStyle8_Style_Vtbl = {
      IDirectMusicStyle8Impl_IDirectMusicStyle8_QueryInterface,
      IDirectMusicStyle8Impl_IDirectMusicStyle8_AddRef,
      IDirectMusicStyle8Impl_IDirectMusicStyle8_Release,
      IDirectMusicStyle8Impl_IDirectMusicStyle8_GetBand,
      IDirectMusicStyle8Impl_IDirectMusicStyle8_EnumBand,
      IDirectMusicStyle8Impl_IDirectMusicStyle8_GetDefaultBand,
      IDirectMusicStyle8Impl_IDirectMusicStyle8_EnumMotif,
      IDirectMusicStyle8Impl_IDirectMusicStyle8_GetMotif,
      IDirectMusicStyle8Impl_IDirectMusicStyle8_GetDefaultChordMap,
      IDirectMusicStyle8Impl_IDirectMusicStyle8_EnumChordMap,
      IDirectMusicStyle8Impl_IDirectMusicStyle8_GetChordMap,
      IDirectMusicStyle8Impl_IDirectMusicStyle8_GetTimeSignature,
      IDirectMusicStyle8Impl_IDirectMusicStyle8_GetEmbellishmentLength,
      IDirectMusicStyle8Impl_IDirectMusicStyle8_GetTempo,
      IDirectMusicStyle8Impl_IDirectMusicStyle8_EnumPattern
};

/* IDirectMusicStyle8Impl IDirectMusicObject part: */
static HRESULT WINAPI IDirectMusicStyle8Impl_IDirectMusicObject_QueryInterface (LPDIRECTMUSICOBJECT iface, REFIID riid, LPVOID *ppobj) {
      ICOM_THIS_MULTI(IDirectMusicStyle8Impl, ObjectVtbl, iface);
      return IDirectMusicStyle8Impl_IUnknown_QueryInterface ((LPUNKNOWN)&This->UnknownVtbl, riid, ppobj);
}

static ULONG WINAPI IDirectMusicStyle8Impl_IDirectMusicObject_AddRef (LPDIRECTMUSICOBJECT iface) {
      ICOM_THIS_MULTI(IDirectMusicStyle8Impl, ObjectVtbl, iface);
      return IDirectMusicStyle8Impl_IUnknown_AddRef ((LPUNKNOWN)&This->UnknownVtbl);
}

static ULONG WINAPI IDirectMusicStyle8Impl_IDirectMusicObject_Release (LPDIRECTMUSICOBJECT iface) {
      ICOM_THIS_MULTI(IDirectMusicStyle8Impl, ObjectVtbl, iface);
      return IDirectMusicStyle8Impl_IUnknown_Release ((LPUNKNOWN)&This->UnknownVtbl);
}

static HRESULT WINAPI IDirectMusicStyle8Impl_IDirectMusicObject_GetDescriptor (LPDIRECTMUSICOBJECT iface, LPDMUS_OBJECTDESC pDesc) {
      ICOM_THIS_MULTI(IDirectMusicStyle8Impl, 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 IDirectMusicStyle8Impl_IDirectMusicObject_SetDescriptor (LPDIRECTMUSICOBJECT iface, LPDMUS_OBJECTDESC pDesc) {
      ICOM_THIS_MULTI(IDirectMusicStyle8Impl, 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) {
            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 IDirectMusicStyle8Impl_IDirectMusicObject_ParseDescriptor (LPDIRECTMUSICOBJECT iface, LPSTREAM pStream, LPDMUS_OBJECTDESC pDesc) {
      ICOM_THIS_MULTI(IDirectMusicStyle8Impl, 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_DirectMusicStyle;

      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_STYLE_FORM) {
                        TRACE_(dmfile)(": style 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;
                                                }
                                                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);
                  } 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 DirectMusicStyle8_Object_Vtbl = {
  IDirectMusicStyle8Impl_IDirectMusicObject_QueryInterface,
  IDirectMusicStyle8Impl_IDirectMusicObject_AddRef,
  IDirectMusicStyle8Impl_IDirectMusicObject_Release,
  IDirectMusicStyle8Impl_IDirectMusicObject_GetDescriptor,
  IDirectMusicStyle8Impl_IDirectMusicObject_SetDescriptor,
  IDirectMusicStyle8Impl_IDirectMusicObject_ParseDescriptor
};

/* IDirectMusicStyle8Impl IPersistStream part: */
static HRESULT WINAPI IDirectMusicStyle8Impl_IPersistStream_QueryInterface (LPPERSISTSTREAM iface, REFIID riid, LPVOID *ppobj) {
  ICOM_THIS_MULTI(IDirectMusicStyle8Impl, PersistStreamVtbl, iface);
  return IDirectMusicStyle8Impl_IUnknown_QueryInterface ((LPUNKNOWN)&This->UnknownVtbl, riid, ppobj);
}

static ULONG WINAPI IDirectMusicStyle8Impl_IPersistStream_AddRef (LPPERSISTSTREAM iface) {
  ICOM_THIS_MULTI(IDirectMusicStyle8Impl, PersistStreamVtbl, iface);
  return IDirectMusicStyle8Impl_IUnknown_AddRef ((LPUNKNOWN)&This->UnknownVtbl);
}

static ULONG WINAPI IDirectMusicStyle8Impl_IPersistStream_Release (LPPERSISTSTREAM iface) {
  ICOM_THIS_MULTI(IDirectMusicStyle8Impl, PersistStreamVtbl, iface);
  return IDirectMusicStyle8Impl_IUnknown_Release ((LPUNKNOWN)&This->UnknownVtbl);
}

static HRESULT WINAPI IDirectMusicStyle8Impl_IPersistStream_GetClassID (LPPERSISTSTREAM iface, CLSID* pClassID) {
  ICOM_THIS_MULTI(IDirectMusicStyle8Impl, PersistStreamVtbl, iface);
  TRACE("(%p, %p)\n", This, pClassID);
  *pClassID = CLSID_DirectMusicStyle;
  return S_OK;
}

static HRESULT WINAPI IDirectMusicStyle8Impl_IPersistStream_IsDirty (LPPERSISTSTREAM iface) {
  ICOM_THIS_MULTI(IDirectMusicStyle8Impl, PersistStreamVtbl, iface);
  FIXME("(%p): stub, always S_FALSE\n", This);
  return S_FALSE;
}

static HRESULT IDirectMusicStyle8Impl_IPersistStream_LoadBand (LPPERSISTSTREAM iface, IStream* pClonedStream, IDirectMusicBand** ppBand) {

  HRESULT hr = E_FAIL;
  IPersistStream* pPersistStream = NULL;
  
  hr = CoCreateInstance (&CLSID_DirectMusicBand, NULL, CLSCTX_INPROC_SERVER, &IID_IDirectMusicBand, (LPVOID*) ppBand);
  if (FAILED(hr)) {
    ERR(": could not create object\n");
    return hr;
  }
  /* acquire PersistStream interface */
  hr = IDirectMusicBand_QueryInterface (*ppBand, &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 IDirectMusicStyle8Impl_IPersistStream_ParsePartRefList (LPPERSISTSTREAM iface, DMUS_PRIVATE_CHUNK* pChunk, IStream* pStm, LPDMUS_PRIVATE_STYLE_MOTIF pNewMotif) {
  /*ICOM_THIS_MULTI(IDirectMusicStyle8Impl, PersistStreamVtbl, iface);*/
  HRESULT hr = E_FAIL;
  DMUS_PRIVATE_CHUNK Chunk;
  DWORD ListSize[3], ListCount[3];
  LARGE_INTEGER liMove; /* used when skipping chunks */

  LPDMUS_PRIVATE_STYLE_PARTREF_ITEM pNewItem = NULL;


  if (pChunk->fccID != DMUS_FOURCC_PARTREF_LIST) {
    ERR_(dmfile)(": %s chunk should be a PARTREF 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 DMUS_FOURCC_PARTREF_CHUNK: {
      TRACE_(dmfile)(": PartRef chunk\n");
      pNewItem = HeapAlloc (GetProcessHeap (), HEAP_ZERO_MEMORY, sizeof(DMUS_PRIVATE_STYLE_PARTREF_ITEM));
      if (!pNewItem) {
      ERR(": no more memory\n");
      return E_OUTOFMEMORY;
      }
      hr = IStream_Read (pStm, &pNewItem->part_ref, sizeof(DMUS_IO_PARTREF), NULL);
      /*TRACE_(dmfile)(" - sizeof %lu\n",  sizeof(DMUS_IO_PARTREF));*/
      list_add_tail (&pNewMotif->Items, &pNewItem->entry);      
      DM_STRUCT_INIT(&pNewItem->desc);
      break;
    }    
    case FOURCC_LIST: {
      IStream_Read (pStm, &Chunk.fccID, sizeof(FOURCC), NULL);
      TRACE_(dmfile)(": LIST chunk of type %s", debugstr_fourcc(Chunk.fccID));
      ListSize[1] = Chunk.dwSize - sizeof(FOURCC);
      ListCount[1] = 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[1] += sizeof(FOURCC) + sizeof(DWORD) + Chunk.dwSize;
          TRACE_(dmfile)(": %s chunk (size = %d)", debugstr_fourcc (Chunk.fccID), Chunk.dwSize);
        
          if (!pNewItem) {
          ERR(": pNewItem not yet allocated, chunk order bad?\n");
          return E_OUTOFMEMORY;
          }
        hr = IDirectMusicUtils_IPersistStream_ParseUNFOGeneric(&Chunk, pStm, &pNewItem->desc);
        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[1] = %d < ListSize[1] = %d\n", ListCount[1], ListSize[1]);
      } while (ListCount[1] < ListSize[1]);
      break;
      }
      default: {
      TRACE_(dmfile)(": unknown chunk (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)(": ListCount[0] = %d < ListSize[0] = %d\n", ListCount[0], ListSize[0]);
  } while (ListCount[0] < ListSize[0]);

  return S_OK;
}

static HRESULT IDirectMusicStyle8Impl_IPersistStream_ParsePartList (LPPERSISTSTREAM iface, DMUS_PRIVATE_CHUNK* pChunk, IStream* pStm) {

  /*ICOM_THIS_MULTI(IDirectMusicStyle8Impl, PersistStreamVtbl, iface);*/
  HRESULT hr = E_FAIL;
  DMUS_PRIVATE_CHUNK Chunk;
  DWORD ListSize[3], ListCount[3];
  LARGE_INTEGER liMove; /* used when skipping chunks */

  DMUS_OBJECTDESC desc;
  DWORD dwSize = 0;
  DWORD cnt = 0;

  if (pChunk->fccID != DMUS_FOURCC_PART_LIST) {
    ERR_(dmfile)(": %s chunk should be a PART 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 DMUS_FOURCC_PART_CHUNK: {
      TRACE_(dmfile)(": Part chunk (skipping for now)\n" );
      liMove.QuadPart = Chunk.dwSize;
      IStream_Seek (pStm, liMove, STREAM_SEEK_CUR, NULL);
      break;
    }
    case DMUS_FOURCC_NOTE_CHUNK: { 
      TRACE_(dmfile)(": Note chunk (skipping for now)\n");
      IStream_Read (pStm, &dwSize, sizeof(DWORD), NULL);
      cnt = (Chunk.dwSize - sizeof(DWORD));
      TRACE_(dmfile)(" - dwSize: %u\n", dwSize);
      TRACE_(dmfile)(" - cnt: %u (%u / %u)\n", cnt / dwSize, (DWORD)(Chunk.dwSize - sizeof(DWORD)), dwSize);
      if (cnt % dwSize != 0) {
      ERR("Invalid Array Size\n");
      return E_FAIL;
      }
      cnt /= dwSize;
      /** skip for now */
      liMove.QuadPart = cnt * dwSize;
      IStream_Seek (pStm, liMove, STREAM_SEEK_CUR, NULL);
      break;
    }
    case DMUS_FOURCC_CURVE_CHUNK: { 
      TRACE_(dmfile)(": Curve chunk (skipping for now)\n");
      IStream_Read (pStm, &dwSize, sizeof(DWORD), NULL);
      cnt = (Chunk.dwSize - sizeof(DWORD));
      TRACE_(dmfile)(" - dwSize: %u\n", dwSize);
      TRACE_(dmfile)(" - cnt: %u (%u / %u)\n", cnt / dwSize, (DWORD)(Chunk.dwSize - sizeof(DWORD)), dwSize);
      if (cnt % dwSize != 0) {
      ERR("Invalid Array Size\n");
      return E_FAIL;
      }
      cnt /= dwSize;
      /** skip for now */
      liMove.QuadPart = cnt * dwSize;
      IStream_Seek (pStm, liMove, STREAM_SEEK_CUR, NULL);
      break;
    }
    case DMUS_FOURCC_MARKER_CHUNK: { 
      TRACE_(dmfile)(": Marker chunk (skipping for now)\n");
      liMove.QuadPart = Chunk.dwSize;
      IStream_Seek (pStm, liMove, STREAM_SEEK_CUR, NULL);
      break;
    }
    case DMUS_FOURCC_RESOLUTION_CHUNK: { 
      TRACE_(dmfile)(": Resolution chunk (skipping for now)\n");
      liMove.QuadPart = Chunk.dwSize;
      IStream_Seek (pStm, liMove, STREAM_SEEK_CUR, NULL);
      break;
    }
    case DMUS_FOURCC_ANTICIPATION_CHUNK: { 
      TRACE_(dmfile)(": Anticipation chunk (skipping for now)\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[1] = Chunk.dwSize - sizeof(FOURCC);
      ListCount[1] = 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[1] += sizeof(FOURCC) + sizeof(DWORD) + Chunk.dwSize;
          TRACE_(dmfile)(": %s chunk (size = %d)", debugstr_fourcc (Chunk.fccID), Chunk.dwSize);
        
        hr = IDirectMusicUtils_IPersistStream_ParseUNFOGeneric(&Chunk, pStm, &desc);
        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[1] = %d < ListSize[1] = %d\n", ListCount[1], ListSize[1]);
      } while (ListCount[1] < ListSize[1]);
      break;
      }
      default: {
      TRACE_(dmfile)(": unknown chunk (irrevelant & skipping)\n");
      liMove.QuadPart = Chunk.dwSize;
      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 IDirectMusicStyle8Impl_IPersistStream_ParsePatternList (LPPERSISTSTREAM iface, DMUS_PRIVATE_CHUNK* pChunk, IStream* pStm) {

  ICOM_THIS_MULTI(IDirectMusicStyle8Impl, PersistStreamVtbl, iface);
  HRESULT hr = E_FAIL;
  DMUS_PRIVATE_CHUNK Chunk;
  DWORD ListSize[3], ListCount[3];
  LARGE_INTEGER liMove; /* used when skipping chunks */

  DMUS_OBJECTDESC desc;
  IDirectMusicBand* pBand = NULL;
  LPDMUS_PRIVATE_STYLE_MOTIF pNewMotif = NULL;

  DM_STRUCT_INIT(&desc);

  if (pChunk->fccID != DMUS_FOURCC_PATTERN_LIST) {
    ERR_(dmfile)(": %s chunk should be a PATTERN 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 DMUS_FOURCC_PATTERN_CHUNK: {
      TRACE_(dmfile)(": Pattern chunk\n");
      /** alloc new motif entry */
      pNewMotif = HeapAlloc (GetProcessHeap (), HEAP_ZERO_MEMORY, sizeof(DMUS_PRIVATE_STYLE_MOTIF));
      list_add_tail (&This->Motifs, &pNewMotif->entry);
      if (NULL == pNewMotif) {
      ERR(": no more memory\n");
      return  E_OUTOFMEMORY;
      }

      IStream_Read (pStm, &pNewMotif->pattern, Chunk.dwSize, NULL);
      /** TODO trace pattern */

      /** reset all data, as a new pattern begin */
      DM_STRUCT_INIT(&pNewMotif->desc);
      list_init (&pNewMotif->Items);
      break;
    }
    case DMUS_FOURCC_RHYTHM_CHUNK: { 
      TRACE_(dmfile)(": Rhythm chunk\n");
      IStream_Read (pStm, &pNewMotif->dwRhythm, sizeof(DWORD), NULL);
      TRACE_(dmfile)(" - dwRhythm: %u\n", pNewMotif->dwRhythm);
      /** TODO understand why some Chunks have size > 4 */
      liMove.QuadPart = Chunk.dwSize - sizeof(DWORD);
      IStream_Seek (pStm, liMove, STREAM_SEEK_CUR, NULL);
      break;
    }
    case DMUS_FOURCC_MOTIFSETTINGS_CHUNK: {
      TRACE_(dmfile)(": MotifSettings chunk (skipping for now)\n");
      IStream_Read (pStm, &pNewMotif->settings, Chunk.dwSize, NULL);
      /** TODO trace settings */
      break;
    }
    case FOURCC_RIFF: {
      /**
       * should be embedded Bands into pattern
       */
      IStream_Read (pStm, &Chunk.fccID, sizeof(FOURCC), NULL);
      TRACE_(dmfile)(": RIFF chunk of type %s", debugstr_fourcc(Chunk.fccID));
      ListSize[1] = Chunk.dwSize - sizeof(FOURCC);
      ListCount[1] = 0;
      switch (Chunk.fccID) {
      case DMUS_FOURCC_BAND_FORM: { 
      LPSTREAM pClonedStream = NULL;
      
      TRACE_(dmfile)(": BAND 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 = IDirectMusicStyle8Impl_IPersistStream_LoadBand (iface, pClonedStream, &pBand);
      if (FAILED(hr)) {
        ERR(": could not load track\n");
        return hr;
      }
      IStream_Release (pClonedStream);
      
      pNewMotif->pBand = pBand;
      IDirectMusicBand_AddRef(pBand);

      IDirectMusicTrack_Release(pBand); pBand = NULL;  /* now we can release it as it's inserted */
      
      /** now safe move the cursor */
      liMove.QuadPart = ListSize[1];
      IStream_Seek (pStm, liMove, STREAM_SEEK_CUR, NULL);
      
      break;
      }
      default: {
      TRACE_(dmfile)(": unknown chunk (irrevelant & skipping)\n");
      liMove.QuadPart = ListSize[1];
      IStream_Seek (pStm, liMove, STREAM_SEEK_CUR, NULL);
      break;
      }
      }
      break;
    }
    case FOURCC_LIST: {
      IStream_Read (pStm, &Chunk.fccID, sizeof(FOURCC), NULL);
      TRACE_(dmfile)(": LIST chunk of type %s", debugstr_fourcc(Chunk.fccID));
      ListSize[1] = Chunk.dwSize - sizeof(FOURCC);
      ListCount[1] = 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[1] += sizeof(FOURCC) + sizeof(DWORD) + Chunk.dwSize;
          TRACE_(dmfile)(": %s chunk (size = %d)", debugstr_fourcc (Chunk.fccID), Chunk.dwSize);
        
        hr = IDirectMusicUtils_IPersistStream_ParseUNFOGeneric(&Chunk, pStm, &pNewMotif->desc);
        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[1] = %d < ListSize[1] = %d\n", ListCount[1], ListSize[1]);
      } while (ListCount[1] < ListSize[1]);
      break;
      }
      case DMUS_FOURCC_PARTREF_LIST: {
      TRACE_(dmfile)(": PartRef list\n");
      hr = IDirectMusicStyle8Impl_IPersistStream_ParsePartRefList (iface, &Chunk, pStm, pNewMotif);
      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)(": ListCount[0] = %d < ListSize[0] = %d\n", ListCount[0], ListSize[0]);
  } while (ListCount[0] < ListSize[0]);

  return S_OK;
}

static HRESULT IDirectMusicStyle8Impl_IPersistStream_ParseStyleForm (LPPERSISTSTREAM iface, DMUS_PRIVATE_CHUNK* pChunk, IStream* pStm) {
  ICOM_THIS_MULTI(IDirectMusicStyle8Impl, PersistStreamVtbl, iface);

  HRESULT hr = E_FAIL;
  DMUS_PRIVATE_CHUNK Chunk;
  DWORD StreamSize, StreamCount, ListSize[3], ListCount[3];
  LARGE_INTEGER liMove; /* used when skipping chunks */

  IDirectMusicBand* pBand = NULL;

  if (pChunk->fccID != DMUS_FOURCC_STYLE_FORM) {
    ERR_(dmfile)(": %s chunk should be a STYLE 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_STYLE_CHUNK: {
      TRACE_(dmfile)(": Style chunk\n");
      IStream_Read (pStm, &This->style, sizeof(DMUS_IO_STYLE), NULL);
      /** TODO dump DMUS_IO_TIMESIG style.timeSig */
      TRACE_(dmfile)(" - dblTempo: %g\n", This->style.dblTempo);
      break;
      }   
      case FOURCC_RIFF: {
      /**
       * should be embedded Bands into style
       */
      IStream_Read (pStm, &Chunk.fccID, sizeof(FOURCC), NULL);
      TRACE_(dmfile)(": RIFF chunk of type %s", debugstr_fourcc(Chunk.fccID));
      ListSize[0] = Chunk.dwSize - sizeof(FOURCC);
      ListCount[0] = 0;
      switch (Chunk.fccID) {
      case DMUS_FOURCC_BAND_FORM: { 
        LPSTREAM pClonedStream = NULL;
        LPDMUS_PRIVATE_STYLE_BAND pNewBand;

        TRACE_(dmfile)(": BAND 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 = IDirectMusicStyle8Impl_IPersistStream_LoadBand (iface, pClonedStream, &pBand);
        if (FAILED(hr)) {
          ERR(": could not load track\n");
          return hr;
        }
        IStream_Release (pClonedStream);
        
        pNewBand = HeapAlloc (GetProcessHeap (), HEAP_ZERO_MEMORY, sizeof(DMUS_PRIVATE_STYLE_BAND));
        if (NULL == pNewBand) {
          ERR(": no more memory\n");
          return  E_OUTOFMEMORY;
        }
        pNewBand->pBand = pBand;
        IDirectMusicBand_AddRef(pBand);
        list_add_tail (&This->Bands, &pNewBand->entry);

        IDirectMusicTrack_Release(pBand); pBand = NULL;  /* now we can release it as it's inserted */
      
        /** now safely move the cursor */
        liMove.QuadPart = ListSize[0];
        IStream_Seek (pStm, liMove, STREAM_SEEK_CUR, NULL);
        
        break;
      }
      default: {
        TRACE_(dmfile)(": unknown chunk (irrevelant & skipping)\n");
        liMove.QuadPart = ListSize[0];
        IStream_Seek (pStm, liMove, STREAM_SEEK_CUR, NULL);
        break;
      }
      }
      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_PART_LIST: {
        TRACE_(dmfile)(": PART list\n");
        hr = IDirectMusicStyle8Impl_IPersistStream_ParsePartList (iface, &Chunk, pStm);
        if (FAILED(hr)) return hr;
        break;
      }
      case  DMUS_FOURCC_PATTERN_LIST: {
        TRACE_(dmfile)(": PATTERN list\n");
        hr = IDirectMusicStyle8Impl_IPersistStream_ParsePatternList (iface, &Chunk, pStm);
        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 WINAPI IDirectMusicStyle8Impl_IPersistStream_Load (LPPERSISTSTREAM iface, IStream* pStm) {
  ICOM_THIS_MULTI(IDirectMusicStyle8Impl, PersistStreamVtbl, iface);
  
  DMUS_PRIVATE_CHUNK Chunk;
  LARGE_INTEGER liMove; /* used when skipping chunks */
  HRESULT hr;

  FIXME("(%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)(": %s chunk (size = %d)", debugstr_fourcc (Chunk.fccID), Chunk.dwSize);
    switch (Chunk.fccID) {
    case DMUS_FOURCC_STYLE_FORM: {
      TRACE_(dmfile)(": Style form\n");
      hr = IDirectMusicStyle8Impl_IPersistStream_ParseStyleForm (iface, &Chunk, pStm);
      if (FAILED(hr)) return hr;
      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;
    }
    }
    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 IDirectMusicStyle8Impl_IPersistStream_Save (LPPERSISTSTREAM iface, IStream* pStm, BOOL fClearDirty) {
  ICOM_THIS_MULTI(IDirectMusicStyle8Impl, PersistStreamVtbl, iface);
  FIXME("(%p): Saving not implemented yet\n", This);
  return E_NOTIMPL;
}

static HRESULT WINAPI IDirectMusicStyle8Impl_IPersistStream_GetSizeMax (LPPERSISTSTREAM iface, ULARGE_INTEGER* pcbSize) {
  ICOM_THIS_MULTI(IDirectMusicStyle8Impl, PersistStreamVtbl, iface);
  FIXME("(%p, %p): stub\n", This, pcbSize);
  return E_NOTIMPL;

}

static const IPersistStreamVtbl DirectMusicStyle8_PersistStream_Vtbl = {
  IDirectMusicStyle8Impl_IPersistStream_QueryInterface,
  IDirectMusicStyle8Impl_IPersistStream_AddRef,
  IDirectMusicStyle8Impl_IPersistStream_Release,
  IDirectMusicStyle8Impl_IPersistStream_GetClassID,
  IDirectMusicStyle8Impl_IPersistStream_IsDirty,
  IDirectMusicStyle8Impl_IPersistStream_Load,
  IDirectMusicStyle8Impl_IPersistStream_Save,
  IDirectMusicStyle8Impl_IPersistStream_GetSizeMax
};

/* for ClassFactory */
HRESULT WINAPI DMUSIC_CreateDirectMusicStyleImpl (LPCGUID lpcGUID, LPVOID* ppobj, LPUNKNOWN pUnkOuter) {
  IDirectMusicStyle8Impl* obj;
      
  obj = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(IDirectMusicStyle8Impl));
  if (NULL == obj) {
    *ppobj = NULL;
    return E_OUTOFMEMORY;
  }
  obj->UnknownVtbl = &DirectMusicStyle8_Unknown_Vtbl;
  obj->StyleVtbl = &DirectMusicStyle8_Style_Vtbl;
  obj->ObjectVtbl = &DirectMusicStyle8_Object_Vtbl;
  obj->PersistStreamVtbl = &DirectMusicStyle8_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_DirectMusicStyle;
  obj->ref = 0; /* will be inited by QueryInterface */
  list_init (&obj->Bands);
  list_init (&obj->Motifs);

  return IDirectMusicStyle8Impl_IUnknown_QueryInterface ((LPUNKNOWN)&obj->UnknownVtbl, lpcGUID, ppobj);
}

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