dlls/dmcompos/dmcompos_private.h

/* DirectMusicComposer Private Include
 *
 * 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.
 */

#ifndef __WINE_DMCOMPOS_PRIVATE_H
#define __WINE_DMCOMPOS_PRIVATE_H

#include <stdio.h>
#include <stdarg.h>
#include <string.h>

#define COBJMACROS

#include "windef.h"
#include "winbase.h"
#include "winnt.h"
#include "wingdi.h"
#include "winuser.h"

#include "wine/debug.h"
#include "wine/list.h"
#include "wine/unicode.h"
#include "winreg.h"
#include "objbase.h"

#include "dmusici.h"
#include "dmusicf.h"
#include "dmusics.h"

/*****************************************************************************
 * Interfaces
 */
typedef struct IDirectMusicChordMapImpl IDirectMusicChordMapImpl;
typedef struct IDirectMusicComposerImpl IDirectMusicComposerImpl;
typedef struct IDirectMusicChordMapTrack IDirectMusicChordMapTrack;
typedef struct IDirectMusicSignPostTrack IDirectMusicSignPostTrack;
	
/*****************************************************************************
 * Predeclare the interface implementation structures
 */
extern IUnknownVtbl             DirectMusicChordMap_Unknown_Vtbl;
extern IDirectMusicChordMapVtbl DirectMusicChordMap_ChordMap_Vtbl;
extern IDirectMusicObjectVtbl   DirectMusicChordMap_Object_Vtbl;
extern IPersistStreamVtbl       DirectMusicChordMap_PersistStream_Vtbl;

extern IDirectMusicComposerVtbl DirectMusicComposer_Vtbl;

extern IUnknownVtbl             DirectMusicChordMapTrack_Unknown_Vtbl;
extern IDirectMusicTrack8Vtbl   DirectMusicChordMapTrack_Track_Vtbl;
extern IPersistStreamVtbl       DirectMusicChordMapTrack_PersistStream_Vtbl;

extern IUnknownVtbl             DirectMusicSignPostTrack_Unknown_Vtbl;
extern IDirectMusicTrack8Vtbl   DirectMusicSignPostTrack_Track_Vtbl;
extern IPersistStreamVtbl       DirectMusicSignPostTrack_PersistStream_Vtbl;

/*****************************************************************************
 * ClassFactory
 */
extern HRESULT WINAPI DMUSIC_CreateDirectMusicChordMapImpl (LPCGUID lpcGUID, LPVOID* ppobj, LPUNKNOWN pUnkOuter);
extern HRESULT WINAPI DMUSIC_CreateDirectMusicComposerImpl (LPCGUID lpcGUID, LPVOID* ppobj, LPUNKNOWN pUnkOuter);
extern HRESULT WINAPI DMUSIC_CreateDirectMusicChordMapTrack (LPCGUID lpcGUID, LPVOID* ppobj, LPUNKNOWN pUnkOuter);
extern HRESULT WINAPI DMUSIC_CreateDirectMusicSignPostTrack (LPCGUID lpcGUID, LPVOID* ppobj, LPUNKNOWN pUnkOuter);

/*****************************************************************************
 * IDirectMusicChordMapImpl implementation structure
 */
struct IDirectMusicChordMapImpl {
  /* IUnknown fields */
  IUnknownVtbl *UnknownVtbl;
  IDirectMusicChordMapVtbl *ChordMapVtbl;
  IDirectMusicObjectVtbl *ObjectVtbl;
  IPersistStreamVtbl *PersistStreamVtbl;
  DWORD ref;

  /* IDirectMusicChordMapImpl fields */
  LPDMUS_OBJECTDESC pDesc;

};

/* IUnknown: */
extern HRESULT WINAPI IDirectMusicChordMapImpl_IUnknown_QueryInterface (LPUNKNOWN iface, REFIID riid, LPVOID *ppobj);
extern ULONG WINAPI   IDirectMusicChordMapImpl_IUnknown_AddRef (LPUNKNOWN iface);
extern ULONG WINAPI   IDirectMusicChordMapImpl_IUnknown_Release (LPUNKNOWN iface);
/* IDirectMusicChordMap: */
extern HRESULT WINAPI IDirectMusicChordMapImpl_IDirectMusicChordMap_QueryInterface (LPDIRECTMUSICCHORDMAP iface, REFIID riid, LPVOID *ppobj);
extern ULONG WINAPI   IDirectMusicChordMapImpl_IDirectMusicChordMap_AddRef (LPDIRECTMUSICCHORDMAP iface);
extern ULONG WINAPI   IDirectMusicChordMapImpl_IDirectMusicChordMap_Release (LPDIRECTMUSICCHORDMAP iface);
extern HRESULT WINAPI IDirectMusicChordMapImpl_IDirectMusicChordMap_GetScale (LPDIRECTMUSICCHORDMAP iface, DWORD* pdwScale);
/* IDirectMusicObject: */
extern HRESULT WINAPI IDirectMusicChordMapImpl_IDirectMusicObject_QueryInterface (LPDIRECTMUSICOBJECT iface, REFIID riid, LPVOID *ppobj);
extern ULONG WINAPI   IDirectMusicChordMapImpl_IDirectMusicObject_AddRef (LPDIRECTMUSICOBJECT iface);
extern ULONG WINAPI   IDirectMusicChordMapImpl_IDirectMusicObject_Release (LPDIRECTMUSICOBJECT iface);
extern HRESULT WINAPI IDirectMusicChordMapImpl_IDirectMusicObject_GetDescriptor (LPDIRECTMUSICOBJECT iface, LPDMUS_OBJECTDESC pDesc);
extern HRESULT WINAPI IDirectMusicChordMapImpl_IDirectMusicObject_SetDescriptor (LPDIRECTMUSICOBJECT iface, LPDMUS_OBJECTDESC pDesc);
extern HRESULT WINAPI IDirectMusicChordMapImpl_IDirectMusicObject_ParseDescriptor (LPDIRECTMUSICOBJECT iface, LPSTREAM pStream, LPDMUS_OBJECTDESC pDesc);
/* IPersistStream: */
extern HRESULT WINAPI IDirectMusicChordMapImpl_IPersistStream_QueryInterface (LPPERSISTSTREAM iface, REFIID riid, void** ppvObject);
extern ULONG WINAPI   IDirectMusicChordMapImpl_IPersistStream_AddRef (LPPERSISTSTREAM iface);
extern ULONG WINAPI   IDirectMusicChordMapImpl_IPersistStream_Release (LPPERSISTSTREAM iface);
extern HRESULT WINAPI IDirectMusicChordMapImpl_IPersistStream_GetClassID (LPPERSISTSTREAM iface, CLSID* pClassID);
extern HRESULT WINAPI IDirectMusicChordMapImpl_IPersistStream_IsDirty (LPPERSISTSTREAM iface);
extern HRESULT WINAPI IDirectMusicChordMapImpl_IPersistStream_Load (LPPERSISTSTREAM iface, IStream* pStm);
extern HRESULT WINAPI IDirectMusicChordMapImpl_IPersistStream_Save (LPPERSISTSTREAM iface, IStream* pStm, BOOL fClearDirty);
extern HRESULT WINAPI IDirectMusicChordMapImpl_IPersistStream_GetSizeMax (LPPERSISTSTREAM iface, ULARGE_INTEGER* pcbSize);

/*****************************************************************************
 * IDirectMusicComposerImpl implementation structure
 */
struct IDirectMusicComposerImpl {
  /* IUnknown fields */
  IDirectMusicComposerVtbl *lpVtbl;
  DWORD ref;

  /* IDirectMusicComposerImpl fields */
};

/* IUnknown: */
extern HRESULT WINAPI IDirectMusicComposerImpl_QueryInterface (LPDIRECTMUSICCOMPOSER iface, REFIID riid, LPVOID *ppobj);
extern ULONG WINAPI   IDirectMusicComposerImpl_AddRef (LPDIRECTMUSICCOMPOSER iface);
extern ULONG WINAPI   IDirectMusicComposerImpl_Release (LPDIRECTMUSICCOMPOSER iface);
/* IDirectMusicComposer: */
extern HRESULT WINAPI IDirectMusicComposerImpl_ComposeSegmentFromTemplate (LPDIRECTMUSICCOMPOSER iface, IDirectMusicStyle* pStyle, IDirectMusicSegment* pTemplate, WORD wActivity, IDirectMusicChordMap* pChordMap, IDirectMusicSegment** ppSegment);
extern HRESULT WINAPI IDirectMusicComposerImpl_ComposeSegmentFromShape (LPDIRECTMUSICCOMPOSER iface, IDirectMusicStyle* pStyle, WORD wNumMeasures, WORD wShape, WORD wActivity, BOOL fIntro, BOOL fEnd, IDirectMusicChordMap* pChordMap, IDirectMusicSegment** ppSegment);
extern HRESULT WINAPI IDirectMusicComposerImpl_ComposeTransition (LPDIRECTMUSICCOMPOSER iface, IDirectMusicSegment* pFromSeg, IDirectMusicSegment* pToSeg, MUSIC_TIME mtTime, WORD wCommand, DWORD dwFlags, IDirectMusicChordMap* pChordMap, IDirectMusicSegment** ppTransSeg);
extern HRESULT WINAPI IDirectMusicComposerImpl_AutoTransition (LPDIRECTMUSICCOMPOSER iface, IDirectMusicPerformance* pPerformance, IDirectMusicSegment* pToSeg, WORD wCommand, DWORD dwFlags, IDirectMusicChordMap* pChordMap, IDirectMusicSegment** ppTransSeg, IDirectMusicSegmentState** ppToSegState, IDirectMusicSegmentState** ppTransSegState);
extern HRESULT WINAPI IDirectMusicComposerImpl_ComposeTemplateFromShape (LPDIRECTMUSICCOMPOSER iface, WORD wNumMeasures, WORD wShape, BOOL fIntro, BOOL fEnd, WORD wEndLength, IDirectMusicSegment** ppTemplate);
extern HRESULT WINAPI IDirectMusicComposerImpl_ChangeChordMap (LPDIRECTMUSICCOMPOSER iface, IDirectMusicSegment* pSegment, BOOL fTrackScale, IDirectMusicChordMap* pChordMap);


/*****************************************************************************
 * IDirectMusicChordMapTrack implementation structure
 */
struct IDirectMusicChordMapTrack {
  /* IUnknown fields */
  IUnknownVtbl *UnknownVtbl;
  IDirectMusicTrack8Vtbl *TrackVtbl;
  IPersistStreamVtbl *PersistStreamVtbl;
  DWORD          ref;

  /* IDirectMusicChordMapTrack fields */
  LPDMUS_OBJECTDESC pDesc;
};

/* IUnknown: */
extern HRESULT WINAPI IDirectMusicChordMapTrack_IUnknown_QueryInterface (LPUNKNOWN iface, REFIID riid, LPVOID *ppobj);
extern ULONG WINAPI   IDirectMusicChordMapTrack_IUnknown_AddRef (LPUNKNOWN iface);
extern ULONG WINAPI   IDirectMusicChordMapTrack_IUnknown_Release (LPUNKNOWN iface);
/* IDirectMusicTrack(8): */
extern HRESULT WINAPI IDirectMusicChordMapTrack_IDirectMusicTrack_QueryInterface (LPDIRECTMUSICTRACK8 iface, REFIID riid, LPVOID *ppobj);
extern ULONG WINAPI   IDirectMusicChordMapTrack_IDirectMusicTrack_AddRef (LPDIRECTMUSICTRACK8 iface);
extern ULONG WINAPI   IDirectMusicChordMapTrack_IDirectMusicTrack_Release (LPDIRECTMUSICTRACK8 iface);
extern HRESULT WINAPI IDirectMusicChordMapTrack_IDirectMusicTrack_Init (LPDIRECTMUSICTRACK8 iface, IDirectMusicSegment* pSegment);
extern HRESULT WINAPI IDirectMusicChordMapTrack_IDirectMusicTrack_InitPlay (LPDIRECTMUSICTRACK8 iface, IDirectMusicSegmentState* pSegmentState, IDirectMusicPerformance* pPerformance, void** ppStateData, DWORD dwVirtualTrackID, DWORD dwFlags);
extern HRESULT WINAPI IDirectMusicChordMapTrack_IDirectMusicTrack_EndPlay (LPDIRECTMUSICTRACK8 iface, void* pStateData);
extern HRESULT WINAPI IDirectMusicChordMapTrack_IDirectMusicTrack_Play (LPDIRECTMUSICTRACK8 iface, void* pStateData, MUSIC_TIME mtStart, MUSIC_TIME mtEnd, MUSIC_TIME mtOffset, DWORD dwFlags, IDirectMusicPerformance* pPerf, IDirectMusicSegmentState* pSegSt, DWORD dwVirtualID);
extern HRESULT WINAPI IDirectMusicChordMapTrack_IDirectMusicTrack_GetParam (LPDIRECTMUSICTRACK8 iface, REFGUID rguidType, MUSIC_TIME mtTime, MUSIC_TIME* pmtNext, void* pParam);
extern HRESULT WINAPI IDirectMusicChordMapTrack_IDirectMusicTrack_SetParam (LPDIRECTMUSICTRACK8 iface, REFGUID rguidType, MUSIC_TIME mtTime, void* pParam);
extern HRESULT WINAPI IDirectMusicChordMapTrack_IDirectMusicTrack_IsParamSupported (LPDIRECTMUSICTRACK8 iface, REFGUID rguidType);
extern HRESULT WINAPI IDirectMusicChordMapTrack_IDirectMusicTrack_AddNotificationType (LPDIRECTMUSICTRACK8 iface, REFGUID rguidNotificationType);
extern HRESULT WINAPI IDirectMusicChordMapTrack_IDirectMusicTrack_RemoveNotificationType (LPDIRECTMUSICTRACK8 iface, REFGUID rguidNotificationType);
extern HRESULT WINAPI IDirectMusicChordMapTrack_IDirectMusicTrack_Clone (LPDIRECTMUSICTRACK8 iface, MUSIC_TIME mtStart, MUSIC_TIME mtEnd, IDirectMusicTrack** ppTrack);
extern HRESULT WINAPI IDirectMusicChordMapTrack_IDirectMusicTrack_PlayEx (LPDIRECTMUSICTRACK8 iface, void* pStateData, REFERENCE_TIME rtStart, REFERENCE_TIME rtEnd, REFERENCE_TIME rtOffset, DWORD dwFlags, IDirectMusicPerformance* pPerf, IDirectMusicSegmentState* pSegSt, DWORD dwVirtualID);
extern HRESULT WINAPI IDirectMusicChordMapTrack_IDirectMusicTrack_GetParamEx (LPDIRECTMUSICTRACK8 iface, REFGUID rguidType, REFERENCE_TIME rtTime, REFERENCE_TIME* prtNext, void* pParam, void* pStateData, DWORD dwFlags);
extern HRESULT WINAPI IDirectMusicChordMapTrack_IDirectMusicTrack_SetParamEx (LPDIRECTMUSICTRACK8 iface, REFGUID rguidType, REFERENCE_TIME rtTime, void* pParam, void* pStateData, DWORD dwFlags);
extern HRESULT WINAPI IDirectMusicChordMapTrack_IDirectMusicTrack_Compose (LPDIRECTMUSICTRACK8 iface, IUnknown* pContext, DWORD dwTrackGroup, IDirectMusicTrack** ppResultTrack);
extern HRESULT WINAPI IDirectMusicChordMapTrack_IDirectMusicTrack_Join (LPDIRECTMUSICTRACK8 iface, IDirectMusicTrack* pNewTrack, MUSIC_TIME mtJoin, IUnknown* pContext, DWORD dwTrackGroup, IDirectMusicTrack** ppResultTrack);
/* IPersistStream: */
extern HRESULT WINAPI IDirectMusicChordMapTrack_IPersistStream_QueryInterface (LPPERSISTSTREAM iface, REFIID riid, void** ppvObject);
extern ULONG WINAPI   IDirectMusicChordMapTrack_IPersistStream_AddRef (LPPERSISTSTREAM iface);
extern ULONG WINAPI   IDirectMusicChordMapTrack_IPersistStream_Release (LPPERSISTSTREAM iface);
extern HRESULT WINAPI IDirectMusicChordMapTrack_IPersistStream_GetClassID (LPPERSISTSTREAM iface, CLSID* pClassID);
extern HRESULT WINAPI IDirectMusicChordMapTrack_IPersistStream_IsDirty (LPPERSISTSTREAM iface);
extern HRESULT WINAPI IDirectMusicChordMapTrack_IPersistStream_Load (LPPERSISTSTREAM iface, IStream* pStm);
extern HRESULT WINAPI IDirectMusicChordMapTrack_IPersistStream_Save (LPPERSISTSTREAM iface, IStream* pStm, BOOL fClearDirty);
extern HRESULT WINAPI IDirectMusicChordMapTrack_IPersistStream_GetSizeMax (LPPERSISTSTREAM iface, ULARGE_INTEGER* pcbSize);


/*****************************************************************************
 * IDirectMusicSignPostTrack implementation structure
 */
struct IDirectMusicSignPostTrack {
  /* IUnknown fields */
  IUnknownVtbl *UnknownVtbl;
  IDirectMusicTrack8Vtbl *TrackVtbl;
  IPersistStreamVtbl *PersistStreamVtbl;
  DWORD          ref;

  /* IDirectMusicSignPostTrack fields */
  LPDMUS_OBJECTDESC pDesc;
};

/* IUnknown: */
extern HRESULT WINAPI IDirectMusicSignPostTrack_IUnknown_QueryInterface (LPUNKNOWN iface, REFIID riid, LPVOID *ppobj);
extern ULONG WINAPI   IDirectMusicSignPostTrack_IUnknown_AddRef (LPUNKNOWN iface);
extern ULONG WINAPI   IDirectMusicSignPostTrack_IUnknown_Release (LPUNKNOWN iface);
/* IDirectMusicTrack(8): */
extern HRESULT WINAPI IDirectMusicSignPostTrack_IDirectMusicTrack_QueryInterface (LPDIRECTMUSICTRACK8 iface, REFIID riid, LPVOID *ppobj);
extern ULONG WINAPI   IDirectMusicSignPostTrack_IDirectMusicTrack_AddRef (LPDIRECTMUSICTRACK8 iface);
extern ULONG WINAPI   IDirectMusicSignPostTrack_IDirectMusicTrack_Release (LPDIRECTMUSICTRACK8 iface);
extern HRESULT WINAPI IDirectMusicSignPostTrack_IDirectMusicTrack_Init (LPDIRECTMUSICTRACK8 iface, IDirectMusicSegment* pSegment);
extern HRESULT WINAPI IDirectMusicSignPostTrack_IDirectMusicTrack_InitPlay (LPDIRECTMUSICTRACK8 iface, IDirectMusicSegmentState* pSegmentState, IDirectMusicPerformance* pPerformance, void** ppStateData, DWORD dwVirtualTrackID, DWORD dwFlags);
extern HRESULT WINAPI IDirectMusicSignPostTrack_IDirectMusicTrack_EndPlay (LPDIRECTMUSICTRACK8 iface, void* pStateData);
extern HRESULT WINAPI IDirectMusicSignPostTrack_IDirectMusicTrack_Play (LPDIRECTMUSICTRACK8 iface, void* pStateData, MUSIC_TIME mtStart, MUSIC_TIME mtEnd, MUSIC_TIME mtOffset, DWORD dwFlags, IDirectMusicPerformance* pPerf, IDirectMusicSegmentState* pSegSt, DWORD dwVirtualID);
extern HRESULT WINAPI IDirectMusicSignPostTrack_IDirectMusicTrack_GetParam (LPDIRECTMUSICTRACK8 iface, REFGUID rguidType, MUSIC_TIME mtTime, MUSIC_TIME* pmtNext, void* pParam);
extern HRESULT WINAPI IDirectMusicSignPostTrack_IDirectMusicTrack_SetParam (LPDIRECTMUSICTRACK8 iface, REFGUID rguidType, MUSIC_TIME mtTime, void* pParam);
extern HRESULT WINAPI IDirectMusicSignPostTrack_IDirectMusicTrack_IsParamSupported (LPDIRECTMUSICTRACK8 iface, REFGUID rguidType);
extern HRESULT WINAPI IDirectMusicSignPostTrack_IDirectMusicTrack_AddNotificationType (LPDIRECTMUSICTRACK8 iface, REFGUID rguidNotificationType);
extern HRESULT WINAPI IDirectMusicSignPostTrack_IDirectMusicTrack_RemoveNotificationType (LPDIRECTMUSICTRACK8 iface, REFGUID rguidNotificationType);
extern HRESULT WINAPI IDirectMusicSignPostTrack_IDirectMusicTrack_Clone (LPDIRECTMUSICTRACK8 iface, MUSIC_TIME mtStart, MUSIC_TIME mtEnd, IDirectMusicTrack** ppTrack);
extern HRESULT WINAPI IDirectMusicSignPostTrack_IDirectMusicTrack_PlayEx (LPDIRECTMUSICTRACK8 iface, void* pStateData, REFERENCE_TIME rtStart, REFERENCE_TIME rtEnd, REFERENCE_TIME rtOffset, DWORD dwFlags, IDirectMusicPerformance* pPerf, IDirectMusicSegmentState* pSegSt, DWORD dwVirtualID);
extern HRESULT WINAPI IDirectMusicSignPostTrack_IDirectMusicTrack_GetParamEx (LPDIRECTMUSICTRACK8 iface, REFGUID rguidType, REFERENCE_TIME rtTime, REFERENCE_TIME* prtNext, void* pParam, void* pStateData, DWORD dwFlags);
extern HRESULT WINAPI IDirectMusicSignPostTrack_IDirectMusicTrack_SetParamEx (LPDIRECTMUSICTRACK8 iface, REFGUID rguidType, REFERENCE_TIME rtTime, void* pParam, void* pStateData, DWORD dwFlags);
extern HRESULT WINAPI IDirectMusicSignPostTrack_IDirectMusicTrack_Compose (LPDIRECTMUSICTRACK8 iface, IUnknown* pContext, DWORD dwTrackGroup, IDirectMusicTrack** ppResultTrack);
extern HRESULT WINAPI IDirectMusicSignPostTrack_IDirectMusicTrack_Join (LPDIRECTMUSICTRACK8 iface, IDirectMusicTrack* pNewTrack, MUSIC_TIME mtJoin, IUnknown* pContext, DWORD dwTrackGroup, IDirectMusicTrack** ppResultTrack);
/* IPersistStream: */
extern HRESULT WINAPI IDirectMusicSignPostTrack_IPersistStream_QueryInterface (LPPERSISTSTREAM iface, REFIID riid, void** ppvObject);
extern ULONG WINAPI   IDirectMusicSignPostTrack_IPersistStream_AddRef (LPPERSISTSTREAM iface);
extern ULONG WINAPI   IDirectMusicSignPostTrack_IPersistStream_Release (LPPERSISTSTREAM iface);
extern HRESULT WINAPI IDirectMusicSignPostTrack_IPersistStream_GetClassID (LPPERSISTSTREAM iface, CLSID* pClassID);
extern HRESULT WINAPI IDirectMusicSignPostTrack_IPersistStream_IsDirty (LPPERSISTSTREAM iface);
extern HRESULT WINAPI IDirectMusicSignPostTrack_IPersistStream_Load (LPPERSISTSTREAM iface, IStream* pStm);
extern HRESULT WINAPI IDirectMusicSignPostTrack_IPersistStream_Save (LPPERSISTSTREAM iface, IStream* pStm, BOOL fClearDirty);
extern HRESULT WINAPI IDirectMusicSignPostTrack_IPersistStream_GetSizeMax (LPPERSISTSTREAM iface, ULARGE_INTEGER* pcbSize);

/**********************************************************************
 * Dll lifetime tracking declaration for dmcompos.dll
 */
extern LONG DMCOMPOS_refCount;
static inline void DMCOMPOS_LockModule() { InterlockedIncrement( &DMCOMPOS_refCount ); }
static inline void DMCOMPOS_UnlockModule() { InterlockedDecrement( &DMCOMPOS_refCount ); }

/*****************************************************************************
 * Misc.
 */
/* for simpler reading */
typedef struct _DMUS_PRIVATE_CHUNK {
	FOURCC fccID; /* FOURCC ID of the chunk */
	DWORD dwSize; /* size of the chunk */
} DMUS_PRIVATE_CHUNK, *LPDMUS_PRIVATE_CHUNK;

/* used for generic dumping (copied from ddraw) */
typedef struct {
    DWORD val;
    const char* name;
} flag_info;

typedef struct {
    const GUID *guid;
    const char* name;
} guid_info;

/* used for initialising structs (primarily for DMUS_OBJECTDESC) */
#define DM_STRUCT_INIT(x) 				\
	do {								\
		memset((x), 0, sizeof(*(x)));	\
		(x)->dwSize = sizeof(*x);		\
	} while (0)

#define FE(x) { x, #x }	
#define GE(x) { &x, #x }

#define ICOM_THIS_MULTI(impl,field,iface) impl* const This=(impl*)((char*)(iface) - offsetof(impl,field))

/* check whether the given DWORD is even (return 0) or odd (return 1) */
extern int even_or_odd (DWORD number);
/* FOURCC to string conversion for debug messages */
extern const char *debugstr_fourcc (DWORD fourcc);
/* DMUS_VERSION struct to string conversion for debug messages */
extern const char *debugstr_dmversion (LPDMUS_VERSION version);
/* returns name of given GUID */
extern const char *debugstr_dmguid (const GUID *id);
/* returns name of given error code */
extern const char *debugstr_dmreturn (DWORD code);
/* generic flags-dumping function */
extern const char *debugstr_flags (DWORD flags, const flag_info* names, size_t num_names);
extern const char *debugstr_DMUS_OBJ_FLAGS (DWORD flagmask);
/* dump whole DMUS_OBJECTDESC struct */
extern const char *debugstr_DMUS_OBJECTDESC (LPDMUS_OBJECTDESC pDesc);

#endif	/* __WINE_DMCOMPOS_PRIVATE_H */