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dswave.c

/* IDirectMusicWave 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., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA.
 */

#include "dswave_private.h"

WINE_DEFAULT_DEBUG_CHANNEL(dswave);
WINE_DECLARE_DEBUG_CHANNEL(dmfile);
                                                             
/* an interface that is, according to my tests, obtained by loader after loading object; is it acting
   as some sort of bridge between object and loader? */
static const GUID IID_IDirectMusicWavePRIVATE = {0x69e934e4,0x97f1,0x4f1d,{0x88,0xe8,0xf2,0xac,0x88,0x67,0x13,0x27}};

static ULONG WINAPI IDirectMusicWaveImpl_IUnknown_AddRef (LPUNKNOWN iface);
static ULONG WINAPI IDirectMusicWaveImpl_IDirectMusicSegment8_AddRef (LPDIRECTMUSICSEGMENT8 iface);
static ULONG WINAPI IDirectMusicWaveImpl_IDirectMusicObject_AddRef (LPDIRECTMUSICOBJECT iface);
static ULONG WINAPI IDirectMusicWaveImpl_IPersistStream_AddRef (LPPERSISTSTREAM iface);

/*****************************************************************************
 * IDirectMusicWaveImpl implementation
 */
/* IDirectMusicWaveImpl IUnknown part: */
static HRESULT WINAPI IDirectMusicWaveImpl_IUnknown_QueryInterface (LPUNKNOWN iface, REFIID riid, LPVOID *ppobj) {
      ICOM_THIS_MULTI(IDirectMusicWaveImpl, UnknownVtbl, iface);
      
      TRACE("(%p, %s, %p)\n", This, debugstr_dmguid(riid), ppobj);

      if (IsEqualIID (riid, &IID_IUnknown)) {
            *ppobj = (LPVOID)&This->UnknownVtbl;
            IDirectMusicWaveImpl_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;
            IDirectMusicWaveImpl_IDirectMusicSegment8_AddRef ((LPDIRECTMUSICSEGMENT8)&This->SegmentVtbl);
            return S_OK;
      } else if (IsEqualIID (riid, &IID_IDirectMusicObject)) {
            *ppobj = (LPVOID)&This->ObjectVtbl;
            IDirectMusicWaveImpl_IDirectMusicObject_AddRef ((LPDIRECTMUSICOBJECT)&This->ObjectVtbl);        
            return S_OK;
      } else if (IsEqualIID (riid, &IID_IPersistStream)) {
            *ppobj = (LPVOID)&This->PersistStreamVtbl;
            IDirectMusicWaveImpl_IPersistStream_AddRef ((LPPERSISTSTREAM)&This->PersistStreamVtbl);         
            return S_OK;
      } else if (IsEqualIID (riid, &IID_IDirectMusicWavePRIVATE)) {
            WARN(": requested private interface, expect crash\n");
            return E_NOINTERFACE;
      }
      
      WARN("(%p, %s, %p): not found\n", This, debugstr_dmguid(riid), ppobj);
      return E_NOINTERFACE;
}

static ULONG WINAPI IDirectMusicWaveImpl_IUnknown_AddRef (LPUNKNOWN iface) {
      ICOM_THIS_MULTI(IDirectMusicWaveImpl, UnknownVtbl, iface);
      ULONG refCount = InterlockedIncrement(&This->ref);

      TRACE("(%p)->(ref before=%u)\n", This, refCount - 1);

      DSWAVE_LockModule();

      return refCount;
}

static ULONG WINAPI IDirectMusicWaveImpl_IUnknown_Release (LPUNKNOWN iface) {
      ICOM_THIS_MULTI(IDirectMusicWaveImpl, UnknownVtbl, iface);
      ULONG refCount = InterlockedDecrement(&This->ref);

      TRACE("(%p)->(ref before=%u)\n", This, refCount + 1);

      if (!refCount) {
            HeapFree(GetProcessHeap(), 0, This);
      }

      DSWAVE_UnlockModule();
      
      return refCount;
}

static const IUnknownVtbl DirectMusicWave_Unknown_Vtbl = {
      IDirectMusicWaveImpl_IUnknown_QueryInterface,
      IDirectMusicWaveImpl_IUnknown_AddRef,
      IDirectMusicWaveImpl_IUnknown_Release
};

/* IDirectMusicSegment8Impl IDirectMusicSegment part: */
static HRESULT WINAPI IDirectMusicWaveImpl_IDirectMusicSegment8_QueryInterface (LPDIRECTMUSICSEGMENT8 iface, REFIID riid, LPVOID *ppobj) {
      ICOM_THIS_MULTI(IDirectMusicWaveImpl, SegmentVtbl, iface);
      return IDirectMusicWaveImpl_IUnknown_QueryInterface ((LPUNKNOWN)&This->UnknownVtbl, riid, ppobj);
}

static ULONG WINAPI IDirectMusicWaveImpl_IDirectMusicSegment8_AddRef (LPDIRECTMUSICSEGMENT8 iface) {
      ICOM_THIS_MULTI(IDirectMusicWaveImpl, SegmentVtbl, iface);
      return IDirectMusicWaveImpl_IUnknown_AddRef ((LPUNKNOWN)&This->UnknownVtbl);
}

static ULONG WINAPI IDirectMusicWaveImpl_IDirectMusicSegment8_Release (LPDIRECTMUSICSEGMENT8 iface) {
      ICOM_THIS_MULTI(IDirectMusicWaveImpl, SegmentVtbl, iface);
      return IDirectMusicWaveImpl_IUnknown_Release ((LPUNKNOWN)&This->UnknownVtbl);
}

static HRESULT WINAPI IDirectMusicWaveImpl_IDirectMusicSegment8_GetLength (LPDIRECTMUSICSEGMENT8 iface, MUSIC_TIME* pmtLength) {
      ICOM_THIS_MULTI(IDirectMusicWaveImpl, SegmentVtbl, iface);
      FIXME("(%p, %p): stub\n", This, pmtLength);
      return S_OK;
}

static HRESULT WINAPI IDirectMusicWaveImpl_IDirectMusicSegment8_SetLength (LPDIRECTMUSICSEGMENT8 iface, MUSIC_TIME mtLength) {
      ICOM_THIS_MULTI(IDirectMusicWaveImpl, SegmentVtbl, iface);
      FIXME("(%p, %ld): stub\n", This, mtLength);
      return S_OK;
}

static HRESULT WINAPI IDirectMusicWaveImpl_IDirectMusicSegment8_GetRepeats (LPDIRECTMUSICSEGMENT8 iface, DWORD* pdwRepeats) { 
      ICOM_THIS_MULTI(IDirectMusicWaveImpl, SegmentVtbl, iface);
      FIXME("(%p, %p): stub\n", This, pdwRepeats);
      return S_OK;
}

static HRESULT WINAPI IDirectMusicWaveImpl_IDirectMusicSegment8_SetRepeats (LPDIRECTMUSICSEGMENT8 iface, DWORD dwRepeats) {
      ICOM_THIS_MULTI(IDirectMusicWaveImpl, SegmentVtbl, iface);
      FIXME("(%p, %d): stub\n", This, dwRepeats);
      return S_OK;
}

static HRESULT WINAPI IDirectMusicWaveImpl_IDirectMusicSegment8_GetDefaultResolution (LPDIRECTMUSICSEGMENT8 iface, DWORD* pdwResolution) {
      ICOM_THIS_MULTI(IDirectMusicWaveImpl, SegmentVtbl, iface);
      FIXME("(%p, %p): stub\n", This, pdwResolution);
      return S_OK;
}

static HRESULT WINAPI IDirectMusicWaveImpl_IDirectMusicSegment8_SetDefaultResolution (LPDIRECTMUSICSEGMENT8 iface, DWORD dwResolution) {
      ICOM_THIS_MULTI(IDirectMusicWaveImpl, SegmentVtbl, iface);
      FIXME("(%p, %d): stub\n", This, dwResolution);
      return S_OK;
}

static HRESULT WINAPI IDirectMusicWaveImpl_IDirectMusicSegment8_GetTrack (LPDIRECTMUSICSEGMENT8 iface, REFGUID rguidType, DWORD dwGroupBits, DWORD dwIndex, IDirectMusicTrack** ppTrack) {
      ICOM_THIS_MULTI(IDirectMusicWaveImpl, SegmentVtbl, iface);
      FIXME("(%p, %s, %d, %d, %p): stub\n", This, debugstr_dmguid(rguidType), dwGroupBits, dwIndex, ppTrack);
      return S_OK;
}

static HRESULT WINAPI IDirectMusicWaveImpl_IDirectMusicSegment8_GetTrackGroup (LPDIRECTMUSICSEGMENT8 iface, IDirectMusicTrack* pTrack, DWORD* pdwGroupBits) {
      ICOM_THIS_MULTI(IDirectMusicWaveImpl, SegmentVtbl, iface);
      FIXME("(%p, %p, %p): stub\n", This, pTrack, pdwGroupBits);
      return S_OK;
}

static HRESULT WINAPI IDirectMusicWaveImpl_IDirectMusicSegment8_InsertTrack (LPDIRECTMUSICSEGMENT8 iface, IDirectMusicTrack* pTrack, DWORD dwGroupBits) {
      ICOM_THIS_MULTI(IDirectMusicWaveImpl, SegmentVtbl, iface);
      FIXME("(%p, %p, %d): stub\n", This, pTrack, dwGroupBits);
      return S_OK;
}

static HRESULT WINAPI IDirectMusicWaveImpl_IDirectMusicSegment8_RemoveTrack (LPDIRECTMUSICSEGMENT8 iface, IDirectMusicTrack* pTrack) {
      ICOM_THIS_MULTI(IDirectMusicWaveImpl, SegmentVtbl, iface);
      FIXME("(%p, %p): stub\n", This, pTrack);
      return S_OK;
}

static HRESULT WINAPI IDirectMusicWaveImpl_IDirectMusicSegment8_InitPlay (LPDIRECTMUSICSEGMENT8 iface, IDirectMusicSegmentState** ppSegState, IDirectMusicPerformance* pPerformance, DWORD dwFlags) {
      ICOM_THIS_MULTI(IDirectMusicWaveImpl, SegmentVtbl, iface);
      FIXME("(%p, %p, %p, %d): stub\n", This, ppSegState, pPerformance, dwFlags);
      return S_OK;
}

static HRESULT WINAPI IDirectMusicWaveImpl_IDirectMusicSegment8_GetGraph (LPDIRECTMUSICSEGMENT8 iface, IDirectMusicGraph** ppGraph) {
      ICOM_THIS_MULTI(IDirectMusicWaveImpl, SegmentVtbl, iface);
      FIXME("(%p, %p): stub\n", This, ppGraph);
      return S_OK;
}

static HRESULT WINAPI IDirectMusicWaveImpl_IDirectMusicSegment8_SetGraph (LPDIRECTMUSICSEGMENT8 iface, IDirectMusicGraph* pGraph) {
      ICOM_THIS_MULTI(IDirectMusicWaveImpl, SegmentVtbl, iface);
      FIXME("(%p, %p): stub\n", This, pGraph);
      return S_OK;
}

static HRESULT WINAPI IDirectMusicWaveImpl_IDirectMusicSegment8_AddNotificationType (LPDIRECTMUSICSEGMENT8 iface, REFGUID rguidNotificationType) {
      ICOM_THIS_MULTI(IDirectMusicWaveImpl, SegmentVtbl, iface);
      FIXME("(%p, %s): stub\n", This, debugstr_dmguid(rguidNotificationType));
      return S_OK;
}

static HRESULT WINAPI IDirectMusicWaveImpl_IDirectMusicSegment8_RemoveNotificationType (LPDIRECTMUSICSEGMENT8 iface, REFGUID rguidNotificationType) {
      ICOM_THIS_MULTI(IDirectMusicWaveImpl, SegmentVtbl, iface);
      FIXME("(%p, %s): stub\n", This, debugstr_dmguid(rguidNotificationType));
      return S_OK;
}

static HRESULT WINAPI IDirectMusicWaveImpl_IDirectMusicSegment8_GetParam (LPDIRECTMUSICSEGMENT8 iface, REFGUID rguidType, DWORD dwGroupBits, DWORD dwIndex, MUSIC_TIME mtTime, MUSIC_TIME* pmtNext, void* pParam) {
      ICOM_THIS_MULTI(IDirectMusicWaveImpl, SegmentVtbl, iface);
      FIXME("(%p, %s, %d, %d, %ld, %p, %p): stub\n", This, debugstr_dmguid(rguidType), dwGroupBits, dwIndex, mtTime, pmtNext, pParam);
      return S_OK;
}

static HRESULT WINAPI IDirectMusicWaveImpl_IDirectMusicSegment8_SetParam (LPDIRECTMUSICSEGMENT8 iface, REFGUID rguidType, DWORD dwGroupBits, DWORD dwIndex, MUSIC_TIME mtTime, void* pParam) {
      ICOM_THIS_MULTI(IDirectMusicWaveImpl, SegmentVtbl, iface);
      FIXME("(%p, %s, %d, %d, %ld, %p): stub\n", This, debugstr_dmguid(rguidType), dwGroupBits, dwIndex, mtTime, pParam);
      return S_OK;
}

static HRESULT WINAPI IDirectMusicWaveImpl_IDirectMusicSegment8_Clone (LPDIRECTMUSICSEGMENT8 iface, MUSIC_TIME mtStart, MUSIC_TIME mtEnd, IDirectMusicSegment** ppSegment) {
      ICOM_THIS_MULTI(IDirectMusicWaveImpl, SegmentVtbl, iface);
      FIXME("(%p, %ld, %ld, %p): stub\n", This, mtStart, mtEnd, ppSegment);
      return S_OK;
}

static HRESULT WINAPI IDirectMusicWaveImpl_IDirectMusicSegment8_SetStartPoint (LPDIRECTMUSICSEGMENT8 iface, MUSIC_TIME mtStart) {
      ICOM_THIS_MULTI(IDirectMusicWaveImpl, SegmentVtbl, iface);
      FIXME("(%p, %ld): stub\n", This, mtStart);
      return S_OK;
}

static HRESULT WINAPI IDirectMusicWaveImpl_IDirectMusicSegment8_GetStartPoint (LPDIRECTMUSICSEGMENT8 iface, MUSIC_TIME* pmtStart) {
      ICOM_THIS_MULTI(IDirectMusicWaveImpl, SegmentVtbl, iface);
      FIXME("(%p, %p): stub\n", This, pmtStart);
      return S_OK;
}

static HRESULT WINAPI IDirectMusicWaveImpl_IDirectMusicSegment8_SetLoopPoints (LPDIRECTMUSICSEGMENT8 iface, MUSIC_TIME mtStart, MUSIC_TIME mtEnd) {
      ICOM_THIS_MULTI(IDirectMusicWaveImpl, SegmentVtbl, iface);
      FIXME("(%p, %ld, %ld): stub\n", This, mtStart, mtEnd);
      return S_OK;
}

static HRESULT WINAPI IDirectMusicWaveImpl_IDirectMusicSegment8_GetLoopPoints (LPDIRECTMUSICSEGMENT8 iface, MUSIC_TIME* pmtStart, MUSIC_TIME* pmtEnd) {
      ICOM_THIS_MULTI(IDirectMusicWaveImpl, SegmentVtbl, iface);
      FIXME("(%p, %p, %p): stub\n", This, pmtStart, pmtEnd);
      return S_OK;
}

static HRESULT WINAPI IDirectMusicWaveImpl_IDirectMusicSegment8_SetPChannelsUsed (LPDIRECTMUSICSEGMENT8 iface, DWORD dwNumPChannels, DWORD* paPChannels) {
      ICOM_THIS_MULTI(IDirectMusicWaveImpl, SegmentVtbl, iface);
      FIXME("(%p, %d, %p): stub\n", This, dwNumPChannels, paPChannels);
      return S_OK;
}

static HRESULT WINAPI IDirectMusicWaveImpl_IDirectMusicSegment8_SetTrackConfig (LPDIRECTMUSICSEGMENT8 iface, REFGUID rguidTrackClassID, DWORD dwGroupBits, DWORD dwIndex, DWORD dwFlagsOn, DWORD dwFlagsOff) {
      ICOM_THIS_MULTI(IDirectMusicWaveImpl, SegmentVtbl, iface);
      FIXME("(%p, %s, %d, %d, %d, %d): stub\n", This, debugstr_dmguid(rguidTrackClassID), dwGroupBits, dwIndex, dwFlagsOn, dwFlagsOff);
      return S_OK;
}

static HRESULT WINAPI IDirectMusicWaveImpl_IDirectMusicSegment8_GetAudioPathConfig (LPDIRECTMUSICSEGMENT8 iface, IUnknown** ppAudioPathConfig){
      ICOM_THIS_MULTI(IDirectMusicWaveImpl, SegmentVtbl, iface);
      FIXME("(%p, %p): stub\n", This, ppAudioPathConfig);
      return S_OK;
}

static HRESULT WINAPI IDirectMusicWaveImpl_IDirectMusicSegment8_Compose (LPDIRECTMUSICSEGMENT8 iface, MUSIC_TIME mtTime, IDirectMusicSegment* pFromSegment, IDirectMusicSegment* pToSegment, IDirectMusicSegment** ppComposedSegment) {
      ICOM_THIS_MULTI(IDirectMusicWaveImpl, SegmentVtbl, iface);
      FIXME("(%p, %ld, %p, %p, %p): stub\n", This, mtTime, pFromSegment, pToSegment, ppComposedSegment);
      return S_OK;
}

static HRESULT WINAPI IDirectMusicWaveImpl_IDirectMusicSegment8_Download (LPDIRECTMUSICSEGMENT8 iface, IUnknown *pAudioPath) {
      ICOM_THIS_MULTI(IDirectMusicWaveImpl, SegmentVtbl, iface);
      FIXME("(%p, %p): stub\n", This, pAudioPath);
      return S_OK;
}

static HRESULT WINAPI IDirectMusicWaveImpl_IDirectMusicSegment8_Unload (LPDIRECTMUSICSEGMENT8 iface, IUnknown *pAudioPath) {
      ICOM_THIS_MULTI(IDirectMusicWaveImpl, SegmentVtbl, iface);
      FIXME("(%p, %p): stub\n", This, pAudioPath);
      return S_OK;
}

static const IDirectMusicSegment8Vtbl DirectMusicSegment8_Segment_Vtbl = {
      IDirectMusicWaveImpl_IDirectMusicSegment8_QueryInterface,
      IDirectMusicWaveImpl_IDirectMusicSegment8_AddRef,
      IDirectMusicWaveImpl_IDirectMusicSegment8_Release,
      IDirectMusicWaveImpl_IDirectMusicSegment8_GetLength,
      IDirectMusicWaveImpl_IDirectMusicSegment8_SetLength,
      IDirectMusicWaveImpl_IDirectMusicSegment8_GetRepeats,
      IDirectMusicWaveImpl_IDirectMusicSegment8_SetRepeats,
      IDirectMusicWaveImpl_IDirectMusicSegment8_GetDefaultResolution,
      IDirectMusicWaveImpl_IDirectMusicSegment8_SetDefaultResolution,
      IDirectMusicWaveImpl_IDirectMusicSegment8_GetTrack,
      IDirectMusicWaveImpl_IDirectMusicSegment8_GetTrackGroup,
      IDirectMusicWaveImpl_IDirectMusicSegment8_InsertTrack,
      IDirectMusicWaveImpl_IDirectMusicSegment8_RemoveTrack,
      IDirectMusicWaveImpl_IDirectMusicSegment8_InitPlay,
      IDirectMusicWaveImpl_IDirectMusicSegment8_GetGraph,
      IDirectMusicWaveImpl_IDirectMusicSegment8_SetGraph,
      IDirectMusicWaveImpl_IDirectMusicSegment8_AddNotificationType,
      IDirectMusicWaveImpl_IDirectMusicSegment8_RemoveNotificationType,
      IDirectMusicWaveImpl_IDirectMusicSegment8_GetParam,
      IDirectMusicWaveImpl_IDirectMusicSegment8_SetParam,
      IDirectMusicWaveImpl_IDirectMusicSegment8_Clone,
      IDirectMusicWaveImpl_IDirectMusicSegment8_SetStartPoint,
      IDirectMusicWaveImpl_IDirectMusicSegment8_GetStartPoint,
      IDirectMusicWaveImpl_IDirectMusicSegment8_SetLoopPoints,
      IDirectMusicWaveImpl_IDirectMusicSegment8_GetLoopPoints,
      IDirectMusicWaveImpl_IDirectMusicSegment8_SetPChannelsUsed,
      IDirectMusicWaveImpl_IDirectMusicSegment8_SetTrackConfig,
      IDirectMusicWaveImpl_IDirectMusicSegment8_GetAudioPathConfig,
      IDirectMusicWaveImpl_IDirectMusicSegment8_Compose,
      IDirectMusicWaveImpl_IDirectMusicSegment8_Download,
      IDirectMusicWaveImpl_IDirectMusicSegment8_Unload
};

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

static ULONG WINAPI IDirectMusicWaveImpl_IDirectMusicObject_AddRef (LPDIRECTMUSICOBJECT iface) {
      ICOM_THIS_MULTI(IDirectMusicWaveImpl, ObjectVtbl, iface);
      return IDirectMusicWaveImpl_IUnknown_AddRef ((LPUNKNOWN)&This->UnknownVtbl);
}

static ULONG WINAPI IDirectMusicWaveImpl_IDirectMusicObject_Release (LPDIRECTMUSICOBJECT iface) {
      ICOM_THIS_MULTI(IDirectMusicWaveImpl, ObjectVtbl, iface);
      return IDirectMusicWaveImpl_IUnknown_Release ((LPUNKNOWN)&This->UnknownVtbl);
}

static HRESULT WINAPI IDirectMusicWaveImpl_IDirectMusicObject_GetDescriptor (LPDIRECTMUSICOBJECT iface, LPDMUS_OBJECTDESC pDesc) {
      ICOM_THIS_MULTI(IDirectMusicWaveImpl, 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 IDirectMusicWaveImpl_IDirectMusicObject_SetDescriptor (LPDIRECTMUSICOBJECT iface, LPDMUS_OBJECTDESC pDesc) {
      ICOM_THIS_MULTI(IDirectMusicWaveImpl, ObjectVtbl, iface);
      TRACE("(%p, %p, %s): setting descriptor:\n", This, pDesc, debugstr_DMUS_OBJECTDESC(pDesc));
      
      /* According to MSDN, we should copy only given values, not whole struct */   
      if (pDesc->dwValidData & DMUS_OBJ_OBJECT)
            memcpy (&This->pDesc->guidObject, &pDesc->guidObject, sizeof (pDesc->guidObject));
      if (pDesc->dwValidData & DMUS_OBJ_CLASS)
            memcpy (&This->pDesc->guidClass, &pDesc->guidClass, sizeof (pDesc->guidClass));           
      if (pDesc->dwValidData & DMUS_OBJ_NAME)
            lstrcpynW (This->pDesc->wszName, pDesc->wszName, DMUS_MAX_NAME);
      if (pDesc->dwValidData & DMUS_OBJ_CATEGORY)
            lstrcpynW (This->pDesc->wszCategory, pDesc->wszCategory, DMUS_MAX_CATEGORY);
      if (pDesc->dwValidData & DMUS_OBJ_FILENAME)
            lstrcpynW (This->pDesc->wszFileName, pDesc->wszFileName, DMUS_MAX_FILENAME);
      if (pDesc->dwValidData & DMUS_OBJ_VERSION)
            memcpy (&This->pDesc->vVersion, &pDesc->vVersion, sizeof (pDesc->vVersion));                    
      if (pDesc->dwValidData & DMUS_OBJ_DATE)
            memcpy (&This->pDesc->ftDate, &pDesc->ftDate, sizeof (pDesc->ftDate));                    
      if (pDesc->dwValidData & DMUS_OBJ_MEMORY) {
            memcpy (&This->pDesc->llMemLength, &pDesc->llMemLength, sizeof (pDesc->llMemLength));                       
            memcpy (This->pDesc->pbMemData, pDesc->pbMemData, sizeof (pDesc->pbMemData));
      }
      if (pDesc->dwValidData & DMUS_OBJ_STREAM) {
            /* according to MSDN, we copy the stream */
            IStream_Clone (pDesc->pStream, &This->pDesc->pStream);      
      }
      
      /* add new flags */
      This->pDesc->dwValidData |= pDesc->dwValidData;

      return S_OK;
}

static HRESULT WINAPI IDirectMusicWaveImpl_IDirectMusicObject_ParseDescriptor (LPDIRECTMUSICOBJECT iface, LPSTREAM pStream, LPDMUS_OBJECTDESC pDesc) {
      DMUS_PRIVATE_CHUNK Chunk;
      DWORD StreamSize, StreamCount, ListSize[1], ListCount[1];
      LARGE_INTEGER liMove; /* used when skipping chunks */

      TRACE("(%p, %p)\n", pStream, pDesc);
      
      /* FIXME: should this be determined from stream? */
      pDesc->dwValidData |= DMUS_OBJ_CLASS;
      memcpy (&pDesc->guidClass, &CLSID_DirectMusicSegment, sizeof(CLSID));
      
      IStream_Read (pStream, &Chunk, sizeof(FOURCC)+sizeof(DWORD), NULL);
      TRACE_(dmfile)(": %s chunk (size = 0x%04x)", debugstr_fourcc (Chunk.fccID), Chunk.dwSize);
      switch (Chunk.fccID) {  
            case FOURCC_RIFF: {
                  IStream_Read (pStream, &Chunk.fccID, sizeof(FOURCC), NULL);                   
                  TRACE_(dmfile)(": RIFF chunk of type %s", debugstr_fourcc(Chunk.fccID));
                  StreamSize = Chunk.dwSize - sizeof(FOURCC);
                  StreamCount = 0;
                  if (Chunk.fccID == mmioFOURCC('W','A','V','E')) {
                        TRACE_(dmfile)(": wave 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: %s\n", debugstr_DMUS_OBJECTDESC (pDesc));
      
      return S_OK;      
}

static const IDirectMusicObjectVtbl DirectMusicWave_Object_Vtbl = {
      IDirectMusicWaveImpl_IDirectMusicObject_QueryInterface,
      IDirectMusicWaveImpl_IDirectMusicObject_AddRef,
      IDirectMusicWaveImpl_IDirectMusicObject_Release,
      IDirectMusicWaveImpl_IDirectMusicObject_GetDescriptor,
      IDirectMusicWaveImpl_IDirectMusicObject_SetDescriptor,
      IDirectMusicWaveImpl_IDirectMusicObject_ParseDescriptor
};

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

static ULONG WINAPI IDirectMusicWaveImpl_IPersistStream_AddRef (LPPERSISTSTREAM iface) {
      ICOM_THIS_MULTI(IDirectMusicWaveImpl, PersistStreamVtbl, iface);
      return IDirectMusicWaveImpl_IUnknown_AddRef ((LPUNKNOWN)&This->UnknownVtbl);
}

static ULONG WINAPI IDirectMusicWaveImpl_IPersistStream_Release (LPPERSISTSTREAM iface) {
      ICOM_THIS_MULTI(IDirectMusicWaveImpl, PersistStreamVtbl, iface);
      return IDirectMusicWaveImpl_IUnknown_Release ((LPUNKNOWN)&This->UnknownVtbl);
}

static HRESULT WINAPI IDirectMusicWaveImpl_IPersistStream_GetClassID (LPPERSISTSTREAM iface, CLSID* pClassID) {
      return E_NOTIMPL;
}

static HRESULT WINAPI IDirectMusicWaveImpl_IPersistStream_IsDirty (LPPERSISTSTREAM iface) {
      return E_NOTIMPL;
}

static HRESULT WINAPI IDirectMusicWaveImpl_IPersistStream_Load (LPPERSISTSTREAM iface, IStream* pStm) {
      ICOM_THIS_MULTI(IDirectMusicWaveImpl, PersistStreamVtbl, iface);
      
      DMUS_PRIVATE_CHUNK Chunk;
      DWORD StreamSize, StreamCount, ListSize[1], ListCount[1];
      LARGE_INTEGER liMove; /* used when skipping chunks */

      FIXME("(%p, %p): loading not implemented yet (only descriptor is loaded)\n", This, pStm);
      
      /* FIXME: should this be determined from stream? */
      This->pDesc->dwValidData |= DMUS_OBJ_CLASS;
      memcpy (&This->pDesc->guidClass, &CLSID_DirectMusicSegment, sizeof(CLSID));
      
      IStream_Read (pStm, &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 (pStm, &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 == mmioFOURCC('W','A','V','E')) {
                        TRACE_(dmfile)(": wave form\n");
                        do {
                              IStream_Read (pStm, &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");
                                          This->pDesc->dwValidData |= DMUS_OBJ_OBJECT;
                                          IStream_Read (pStm, &This->pDesc->guidObject, Chunk.dwSize, NULL);
                                          break;
                                    }
                                    case DMUS_FOURCC_VERSION_CHUNK: {
                                          TRACE_(dmfile)(": version chunk\n");
                                          This->pDesc->dwValidData |= DMUS_OBJ_VERSION;
                                          IStream_Read (pStm, &This->pDesc->vVersion, Chunk.dwSize, NULL);
                                          break;
                                    }
                                    case DMUS_FOURCC_CATEGORY_CHUNK: {
                                          TRACE_(dmfile)(": category chunk\n");
                                          This->pDesc->dwValidData |= DMUS_OBJ_CATEGORY;
                                          IStream_Read (pStm, This->pDesc->wszCategory, Chunk.dwSize, 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) {
                                                /* evil M$ UNFO list, which can (!?) contain INFO elements */
                                                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 = 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");
                                                                        This->pDesc->dwValidData |= DMUS_OBJ_NAME;
                                                                        IStream_Read (pStm, This->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 (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 = Chunk.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 = Chunk.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 = Chunk.dwSize;
                                                                        IStream_Seek (pStm, liMove, STREAM_SEEK_CUR, NULL);
                                                                        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]);
                                                      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);
                  } else {
                        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 DMUS_E_INVALIDFILE;
            }
      }
      
      return S_OK;
}

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

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

static const IPersistStreamVtbl DirectMusicWave_PersistStream_Vtbl = {
      IDirectMusicWaveImpl_IPersistStream_QueryInterface,
      IDirectMusicWaveImpl_IPersistStream_AddRef,
      IDirectMusicWaveImpl_IPersistStream_Release,
      IDirectMusicWaveImpl_IPersistStream_GetClassID,
      IDirectMusicWaveImpl_IPersistStream_IsDirty,
      IDirectMusicWaveImpl_IPersistStream_Load,
      IDirectMusicWaveImpl_IPersistStream_Save,
      IDirectMusicWaveImpl_IPersistStream_GetSizeMax
};


/* for ClassFactory */
HRESULT WINAPI DMUSIC_CreateDirectMusicWaveImpl (LPCGUID lpcGUID, LPVOID* ppobj, LPUNKNOWN pUnkOuter) {
      IDirectMusicWaveImpl* obj;
      
      obj = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(IDirectMusicWaveImpl));
      if (NULL == obj) {
            *ppobj = NULL;
            return E_OUTOFMEMORY;
      }
      obj->UnknownVtbl = &DirectMusicWave_Unknown_Vtbl;
      obj->ObjectVtbl = &DirectMusicWave_Object_Vtbl;
      obj->PersistStreamVtbl = &DirectMusicWave_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)); /* shown by tests */
      obj->ref = 0; /* will be inited by QueryInterface */
      
      return IDirectMusicWaveImpl_IUnknown_QueryInterface ((LPUNKNOWN)&obj->UnknownVtbl, lpcGUID, ppobj);
}

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