dlls/dmime/segment.c

/* IDirectMusicSegment8 Implementation
 *
 * Copyright (C) 2003-2004 Rok Mandeljc
 *
 * 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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
 */

#include "dmime_private.h"

WINE_DEFAULT_DEBUG_CHANNEL(dmime);
WINE_DECLARE_DEBUG_CHANNEL(dmfile);

/*****************************************************************************
 * IDirectMusicSegmentImpl implementation
 */
/* IDirectMusicSegment IUnknown part: */
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;
		IDirectMusicSegment8Impl_IUnknown_AddRef ((LPUNKNOWN)&This->UnknownVtbl);
		return S_OK;	
	} else if (IsEqualIID (riid, &IID_IDirectMusicSegment)
	|| IsEqualIID (riid, &IID_IDirectMusicSegment2)
	|| IsEqualIID (riid, &IID_IDirectMusicSegment8)) {
		*ppobj = (LPVOID)&This->SegmentVtbl;
		IDirectMusicSegment8Impl_IDirectMusicSegment8_AddRef ((LPDIRECTMUSICSEGMENT8)&This->SegmentVtbl);
		return S_OK;
	} else if (IsEqualIID (riid, &IID_IDirectMusicObject)) {
		*ppobj = (LPVOID)&This->ObjectVtbl;
		IDirectMusicSegment8Impl_IDirectMusicObject_AddRef ((LPDIRECTMUSICOBJECT)&This->ObjectVtbl);		
		return S_OK;
	} else if (IsEqualIID (riid, &IID_IPersistStream)) {
		*ppobj = (LPVOID)&This->PersistStreamVtbl;
		IDirectMusicSegment8Impl_IPersistStream_AddRef ((LPPERSISTSTREAM)&This->PersistStreamVtbl);		
		return S_OK;
	}
	
	WARN("(%p, %s, %p): not found\n", This, debugstr_dmguid(riid), ppobj);
	return E_NOINTERFACE;
}

ULONG WINAPI IDirectMusicSegment8Impl_IUnknown_AddRef (LPUNKNOWN iface) {
	ICOM_THIS_MULTI(IDirectMusicSegment8Impl, UnknownVtbl, iface);
	TRACE("(%p): AddRef from %ld\n", This, This->ref);
	return ++(This->ref);
}

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

ICOM_VTABLE(IUnknown) DirectMusicSegment8_Unknown_Vtbl = {
    ICOM_MSVTABLE_COMPAT_DummyRTTIVALUE
	IDirectMusicSegment8Impl_IUnknown_QueryInterface,
	IDirectMusicSegment8Impl_IUnknown_AddRef,
	IDirectMusicSegment8Impl_IUnknown_Release
};

/* IDirectMusicSegmentImpl IDirectMusicSegment part: */
HRESULT WINAPI IDirectMusicSegment8Impl_IDirectMusicSegment8_QueryInterface (LPDIRECTMUSICSEGMENT8 iface, REFIID riid, LPVOID *ppobj) {
	ICOM_THIS_MULTI(IDirectMusicSegment8Impl, SegmentVtbl, iface);
	return IDirectMusicSegment8Impl_IUnknown_QueryInterface ((LPUNKNOWN)&This->UnknownVtbl, riid, ppobj);
}

ULONG WINAPI IDirectMusicSegment8Impl_IDirectMusicSegment8_AddRef (LPDIRECTMUSICSEGMENT8 iface) {
	ICOM_THIS_MULTI(IDirectMusicSegment8Impl, SegmentVtbl, iface);
	return IDirectMusicSegment8Impl_IUnknown_AddRef ((LPUNKNOWN)&This->UnknownVtbl);
}

ULONG WINAPI IDirectMusicSegment8Impl_IDirectMusicSegment8_Release (LPDIRECTMUSICSEGMENT8 iface) {
	ICOM_THIS_MULTI(IDirectMusicSegment8Impl, SegmentVtbl, iface);
	return IDirectMusicSegment8Impl_IUnknown_Release ((LPUNKNOWN)&This->UnknownVtbl);
}

HRESULT WINAPI IDirectMusicSegment8Impl_IDirectMusicSegment8_GetLength (LPDIRECTMUSICSEGMENT8 iface, MUSIC_TIME* pmtLength) {
	ICOM_THIS_MULTI(IDirectMusicSegment8Impl, SegmentVtbl, iface);
	FIXME("(%p, %p): stub\n", This, pmtLength);
	return S_OK;
}

HRESULT WINAPI IDirectMusicSegment8Impl_IDirectMusicSegment8_SetLength (LPDIRECTMUSICSEGMENT8 iface, MUSIC_TIME mtLength) {
	ICOM_THIS_MULTI(IDirectMusicSegment8Impl, SegmentVtbl, iface);
	FIXME("(%p, %ld): stub\n", This, mtLength);
	return S_OK;
}

HRESULT WINAPI IDirectMusicSegment8Impl_IDirectMusicSegment8_GetRepeats (LPDIRECTMUSICSEGMENT8 iface, DWORD* pdwRepeats) { 
	ICOM_THIS_MULTI(IDirectMusicSegment8Impl, SegmentVtbl, iface);
	FIXME("(%p, %p): stub\n", This, pdwRepeats);
	return S_OK;
}

HRESULT WINAPI IDirectMusicSegment8Impl_IDirectMusicSegment8_SetRepeats (LPDIRECTMUSICSEGMENT8 iface, DWORD dwRepeats) {
	ICOM_THIS_MULTI(IDirectMusicSegment8Impl, SegmentVtbl, iface);
	FIXME("(%p, %ld): stub\n", This, dwRepeats);	
	return S_OK;
}

HRESULT WINAPI IDirectMusicSegment8Impl_IDirectMusicSegment8_GetDefaultResolution (LPDIRECTMUSICSEGMENT8 iface, DWORD* pdwResolution) {
	ICOM_THIS_MULTI(IDirectMusicSegment8Impl, SegmentVtbl, iface);
	FIXME("(%p, %p): stub\n", This, pdwResolution);
	return S_OK;
}

HRESULT WINAPI IDirectMusicSegment8Impl_IDirectMusicSegment8_SetDefaultResolution (LPDIRECTMUSICSEGMENT8 iface, DWORD dwResolution) {
	ICOM_THIS_MULTI(IDirectMusicSegment8Impl, SegmentVtbl, iface);
	FIXME("(%p, %ld): stub\n", This, dwResolution);
	return S_OK;
}

HRESULT WINAPI IDirectMusicSegment8Impl_IDirectMusicSegment8_GetTrack (LPDIRECTMUSICSEGMENT8 iface, REFGUID rguidType, DWORD dwGroupBits, DWORD dwIndex, IDirectMusicTrack** ppTrack) {
	ICOM_THIS_MULTI(IDirectMusicSegment8Impl, SegmentVtbl, iface);
	FIXME("(%p, %s, %ld, %ld, %p): stub\n", This, debugstr_dmguid(rguidType), dwGroupBits, dwIndex, ppTrack);
	return S_OK;
}

HRESULT WINAPI IDirectMusicSegment8Impl_IDirectMusicSegment8_GetTrackGroup (LPDIRECTMUSICSEGMENT8 iface, IDirectMusicTrack* pTrack, DWORD* pdwGroupBits) {
	ICOM_THIS_MULTI(IDirectMusicSegment8Impl, SegmentVtbl, iface);
	FIXME("(%p, %p, %p): stub\n", This, pTrack, pdwGroupBits);
	return S_OK;
}

HRESULT WINAPI IDirectMusicSegment8Impl_IDirectMusicSegment8_InsertTrack (LPDIRECTMUSICSEGMENT8 iface, IDirectMusicTrack* pTrack, DWORD dwGroupBits) {
	ICOM_THIS_MULTI(IDirectMusicSegment8Impl, SegmentVtbl, iface);
	FIXME("(%p, %p, %ld): stub\n", This, pTrack, dwGroupBits);
	return S_OK;
}

HRESULT WINAPI IDirectMusicSegment8Impl_IDirectMusicSegment8_RemoveTrack (LPDIRECTMUSICSEGMENT8 iface, IDirectMusicTrack* pTrack) {
	ICOM_THIS_MULTI(IDirectMusicSegment8Impl, SegmentVtbl, iface);
	FIXME("(%p, %p): stub\n", This, pTrack);
	return S_OK;
}

HRESULT WINAPI IDirectMusicSegment8Impl_IDirectMusicSegment8_InitPlay (LPDIRECTMUSICSEGMENT8 iface, IDirectMusicSegmentState** ppSegState, IDirectMusicPerformance* pPerformance, DWORD dwFlags) {
	ICOM_THIS_MULTI(IDirectMusicSegment8Impl, SegmentVtbl, iface);
	FIXME("(%p, %p, %p, %ld): stub\n", This, ppSegState, pPerformance, dwFlags);
	return S_OK;
}

HRESULT WINAPI IDirectMusicSegment8Impl_IDirectMusicSegment8_GetGraph (LPDIRECTMUSICSEGMENT8 iface, IDirectMusicGraph** ppGraph) {
	ICOM_THIS_MULTI(IDirectMusicSegment8Impl, SegmentVtbl, iface);
	FIXME("(%p, %p): stub\n", This, ppGraph);
	return S_OK;
}

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

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;
}

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;
}

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);
	FIXME("(%p, %s, %ld, %ld, %ld, %p, %p): stub\n", This, debugstr_dmguid(rguidType), dwGroupBits, dwIndex, mtTime, pmtNext, pParam);
	return S_OK;
}

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, %ld, %ld, %ld, %p): stub\n", This, debugstr_dmguid(rguidType), dwGroupBits, dwIndex, mtTime, pParam);
	return S_OK;
}

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;
}

HRESULT WINAPI IDirectMusicSegment8Impl_IDirectMusicSegment8_SetStartPoint (LPDIRECTMUSICSEGMENT8 iface, MUSIC_TIME mtStart) {
	ICOM_THIS_MULTI(IDirectMusicSegment8Impl, SegmentVtbl, iface);
	FIXME("(%p, %ld): stub\n", This, mtStart);
	return S_OK;
}

HRESULT WINAPI IDirectMusicSegment8Impl_IDirectMusicSegment8_GetStartPoint (LPDIRECTMUSICSEGMENT8 iface, MUSIC_TIME* pmtStart) {
	ICOM_THIS_MULTI(IDirectMusicSegment8Impl, SegmentVtbl, iface);
	FIXME("(%p, %p): stub\n", This, pmtStart);
	return S_OK;
}

HRESULT WINAPI IDirectMusicSegment8Impl_IDirectMusicSegment8_SetLoopPoints (LPDIRECTMUSICSEGMENT8 iface, MUSIC_TIME mtStart, MUSIC_TIME mtEnd) {
	ICOM_THIS_MULTI(IDirectMusicSegment8Impl, SegmentVtbl, iface);
	FIXME("(%p, %ld, %ld): stub\n", This, mtStart, mtEnd);
	return S_OK;
}

HRESULT WINAPI IDirectMusicSegment8Impl_IDirectMusicSegment8_GetLoopPoints (LPDIRECTMUSICSEGMENT8 iface, MUSIC_TIME* pmtStart, MUSIC_TIME* pmtEnd) {
	ICOM_THIS_MULTI(IDirectMusicSegment8Impl, SegmentVtbl, iface);
	FIXME("(%p, %p, %p): stub\n", This, pmtStart, pmtEnd);
	return S_OK;
}

HRESULT WINAPI IDirectMusicSegment8Impl_IDirectMusicSegment8_SetPChannelsUsed (LPDIRECTMUSICSEGMENT8 iface, DWORD dwNumPChannels, DWORD* paPChannels) {
	ICOM_THIS_MULTI(IDirectMusicSegment8Impl, SegmentVtbl, iface);
	FIXME("(%p, %ld, %p): stub\n", This, dwNumPChannels, paPChannels);	
	return S_OK;
}

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, %ld, %ld, %ld, %ld): stub\n", This, debugstr_dmguid(rguidTrackClassID), dwGroupBits, dwIndex, dwFlagsOn, dwFlagsOff);
	return S_OK;
}

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;
}

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;
}

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;
}

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;
}

ICOM_VTABLE(IDirectMusicSegment8) DirectMusicSegment8_Segment_Vtbl = {
    ICOM_MSVTABLE_COMPAT_DummyRTTIVALUE
	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: */
HRESULT WINAPI IDirectMusicSegment8Impl_IDirectMusicObject_QueryInterface (LPDIRECTMUSICOBJECT iface, REFIID riid, LPVOID *ppobj) {
	ICOM_THIS_MULTI(IDirectMusicSegment8Impl, ObjectVtbl, iface);
	return IDirectMusicSegment8Impl_IUnknown_QueryInterface ((LPUNKNOWN)&This->UnknownVtbl, riid, ppobj);
}

ULONG WINAPI IDirectMusicSegment8Impl_IDirectMusicObject_AddRef (LPDIRECTMUSICOBJECT iface) {
	ICOM_THIS_MULTI(IDirectMusicSegment8Impl, ObjectVtbl, iface);
	return IDirectMusicSegment8Impl_IUnknown_AddRef ((LPUNKNOWN)&This->UnknownVtbl);
}

ULONG WINAPI IDirectMusicSegment8Impl_IDirectMusicObject_Release (LPDIRECTMUSICOBJECT iface) {
	ICOM_THIS_MULTI(IDirectMusicSegment8Impl, ObjectVtbl, iface);
	return IDirectMusicSegment8Impl_IUnknown_Release ((LPUNKNOWN)&This->UnknownVtbl);
}

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;
}

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)
		strncpyW (This->pDesc->wszName, pDesc->wszName, DMUS_MAX_NAME);
	if (pDesc->dwValidData & DMUS_OBJ_CATEGORY)
		strncpyW (This->pDesc->wszCategory, pDesc->wszCategory, DMUS_MAX_CATEGORY);		
	if (pDesc->dwValidData & DMUS_OBJ_FILENAME)
		strncpyW (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;
}

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%04lx)", 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%04lx)", 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%04lx)", 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] = %ld < ListSize[0] = %ld\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 = %ld)", 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] = %ld < ListSize[0] = %ld\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] = %ld < StreamSize[0] = %ld\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;
}

ICOM_VTABLE(IDirectMusicObject) DirectMusicSegment8_Object_Vtbl = {
    ICOM_MSVTABLE_COMPAT_DummyRTTIVALUE
	IDirectMusicSegment8Impl_IDirectMusicObject_QueryInterface,
	IDirectMusicSegment8Impl_IDirectMusicObject_AddRef,
	IDirectMusicSegment8Impl_IDirectMusicObject_Release,
	IDirectMusicSegment8Impl_IDirectMusicObject_GetDescriptor,
	IDirectMusicSegment8Impl_IDirectMusicObject_SetDescriptor,
	IDirectMusicSegment8Impl_IDirectMusicObject_ParseDescriptor
};

/* IDirectMusicSegment8Impl IPersistStream part: */
HRESULT WINAPI IDirectMusicSegment8Impl_IPersistStream_QueryInterface (LPPERSISTSTREAM iface, REFIID riid, LPVOID *ppobj) {
  ICOM_THIS_MULTI(IDirectMusicSegment8Impl, PersistStreamVtbl, iface);
  return IDirectMusicSegment8Impl_IUnknown_QueryInterface ((LPUNKNOWN)&This->UnknownVtbl, riid, ppobj);
}

ULONG WINAPI IDirectMusicSegment8Impl_IPersistStream_AddRef (LPPERSISTSTREAM iface) {
  ICOM_THIS_MULTI(IDirectMusicSegment8Impl, PersistStreamVtbl, iface);
  return IDirectMusicSegment8Impl_IUnknown_AddRef ((LPUNKNOWN)&This->UnknownVtbl);
}

ULONG WINAPI IDirectMusicSegment8Impl_IPersistStream_Release (LPPERSISTSTREAM iface) {
  ICOM_THIS_MULTI(IDirectMusicSegment8Impl, PersistStreamVtbl, iface);
  return IDirectMusicSegment8Impl_IUnknown_Release ((LPUNKNOWN)&This->UnknownVtbl);
}

HRESULT WINAPI IDirectMusicSegment8Impl_IPersistStream_GetClassID (LPPERSISTSTREAM iface, CLSID* pClassID) {
  ICOM_THIS_MULTI(IDirectMusicSegment8Impl, PersistStreamVtbl, iface);
  TRACE("(%p, %p)\n", This, pClassID);
  memcpy(pClassID, &CLSID_DirectMusicContainer, sizeof(CLSID));
  return S_OK;
}

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 IDirectMusicImpl_IPersistStream_ParseDescGeneric (DMUS_PRIVATE_CHUNK* pChunk, IStream* pStm, LPDMUS_OBJECTDESC pDesc) {

  switch (pChunk->fccID) {
  case DMUS_FOURCC_GUID_CHUNK: {
    TRACE_(dmfile)(": GUID chunk\n");
    pDesc->dwValidData |= DMUS_OBJ_OBJECT;
    IStream_Read (pStm, &pDesc->guidObject, pChunk->dwSize, NULL);
    break;
  }
  case DMUS_FOURCC_VERSION_CHUNK: {
    TRACE_(dmfile)(": version chunk\n");
    pDesc->dwValidData |= DMUS_OBJ_VERSION;
    IStream_Read (pStm, &pDesc->vVersion, pChunk->dwSize, NULL);
    break;
  }
  case DMUS_FOURCC_CATEGORY_CHUNK: {
    TRACE_(dmfile)(": category chunk\n");
    pDesc->dwValidData |= DMUS_OBJ_CATEGORY;
    IStream_Read (pStm, pDesc->wszCategory, pChunk->dwSize, NULL);
    break;
  }
  default:
    /* not handled */
    return S_FALSE;
  }

  return S_OK;
}

static HRESULT IDirectMusicImpl_IPersistStream_ParseUNFOGeneric (DMUS_PRIVATE_CHUNK* pChunk, IStream* pStm, LPDMUS_OBJECTDESC pDesc) {

  LARGE_INTEGER liMove; /* used when skipping chunks */

  /**
   * don't ask me why, but M$ puts INFO elements in UNFO list sometimes
   * (though strings seem to be valid unicode) 
   */
  switch (pChunk->fccID) {
  /*
  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 = pChunk->dwSize;
    IStream_Seek (pStm, 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 = pChunk->dwSize;
    IStream_Seek (pStm, 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 = pChunk->dwSize;
    IStream_Seek (pStm, 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 = pChunk->dwSize;
    IStream_Seek (pStm, liMove, STREAM_SEEK_CUR, NULL);
    break;
  }
  default:
    /* not handled */
    return S_FALSE;
  }

  return S_OK;
}

static HRESULT IDirectMusicSegment8Impl_IPersistStream_LoadTrack (LPPERSISTSTREAM iface, IStream* pClonedStream, IDirectMusicTrack** ppTrack, 
								  DMUS_IO_TRACK_HEADER* pTrack_hdr) {

  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);

  return S_OK;
}

static HRESULT IDirectMusicSegment8Impl_IPersistStream_ParseTrackForm (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 */
  
  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 = %ld)", 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: %ld\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(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);
	
	hr = IDirectMusicSegment8Impl_IDirectMusicSegment8_InsertTrack ((LPDIRECTMUSICSEGMENT8)This->SegmentVtbl, pTrack, track_hdr.dwGroup); /* at dsPosition */
	if (FAILED(hr)) {
	  ERR(": could not insert track\n");
	  return hr;
	}
	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);

      } 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);
      FIXME_(dmfile)(": LIST chunk of type %s (behavior to check)", debugstr_fourcc(Chunk.fccID));
      ListSize[0] = Chunk.dwSize - sizeof(FOURCC);
      ListCount[0] = 0;
      if (Chunk.fccID == track_hdr.fccType && 0 == track_hdr.ckid) {	
	TRACE_(dmfile)(": TRACK RIFF\n");
	/*
	hr = IDirectMusicSegment8Impl_IPersistStream_LoadTrack (iface, pStm, &pTrack, &track_hdr);
	if (FAILED(hr)) return hr;		
	*/
	liMove.QuadPart = Chunk.dwSize;
	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;
    }
     
    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);
	
	hr = IDirectMusicSegment8Impl_IDirectMusicSegment8_InsertTrack ((LPDIRECTMUSICSEGMENT8)This->SegmentVtbl, pTrack, track_hdr.dwGroup); /* at dsPosition */
	if (FAILED(hr)) {
	  ERR(": could not insert track\n");
	  return hr;
	}
	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] = %ld < StreamSize[0] = %ld\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] = Chunk.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 = %ld)", 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, This);
	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] = %ld < ListSize[0] = %ld\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 = %ld)", debugstr_fourcc (Chunk.fccID), Chunk.dwSize);
    
    hr = IDirectMusicImpl_IPersistStream_ParseDescGeneric(&Chunk, pStm, This->pDesc);
    if (FAILED(hr)) return hr;
    
    if (hr == S_FALSE) {
      switch (Chunk.fccID) {
      case DMUS_FOURCC_SEGMENT_CHUNK: {
	FIXME_(dmfile)(": segment chunk\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;
	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 = %ld)", debugstr_fourcc (Chunk.fccID), Chunk.dwSize);

	    hr = IDirectMusicImpl_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] = %ld < ListSize[0] = %ld\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] = %ld < StreamSize[0] = %ld\n", StreamCount, StreamSize);
  } while (StreamCount < StreamSize);

  return S_OK;
}

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 */
  
  
  FIXME("(%p, %p): Loading not implemented yet\n", This, pStm);
  IStream_Read (pStm, &Chunk, sizeof(FOURCC)+sizeof(DWORD), NULL);
  TRACE_(dmfile)(": %s chunk (size = %ld)", 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'): {
      FIXME_(dmfile)(": WAVE form (loading not yet implemented)\n");
      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;
}

HRESULT WINAPI IDirectMusicSegment8Impl_IPersistStream_Save (LPPERSISTSTREAM iface, IStream* pStm, BOOL fClearDirty) {
	return E_NOTIMPL;
}

HRESULT WINAPI IDirectMusicSegment8Impl_IPersistStream_GetSizeMax (LPPERSISTSTREAM iface, ULARGE_INTEGER* pcbSize) {
  return E_NOTIMPL;
}

ICOM_VTABLE(IPersistStream) DirectMusicSegment8_PersistStream_Vtbl = {
  ICOM_MSVTABLE_COMPAT_DummyRTTIVALUE
  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 = (LPVOID) 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 */
  
  return IDirectMusicSegment8Impl_IUnknown_QueryInterface ((LPUNKNOWN)&obj->UnknownVtbl, lpcGUID, ppobj);
}