Split the dmusic interfaces.
diff --git a/dlls/dmsynth/dmsynth_private.h b/dlls/dmsynth/dmsynth_private.h
new file mode 100644
index 0000000..a255837
--- /dev/null
+++ b/dlls/dmsynth/dmsynth_private.h
@@ -0,0 +1,129 @@
+/* DirectMusicSynthesizer Private Include
+ *
+ * Copyright (C) 2003 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_DMSYNTH_PRIVATE_H
+#define __WINE_DMSYNTH_PRIVATE_H
+
+#include "windef.h"
+#include "wine/debug.h"
+#include "winbase.h"
+#include "winnt.h"
+#include "dmusicc.h"
+#include "dmusici.h"
+#include "dmusics.h"
+#include "dmplugin.h"
+#include "dmusicf.h"
+#include "dsound.h"
+
+/*****************************************************************************
+ * Interfaces
+ */
+typedef struct IDirectMusicSynth8Impl IDirectMusicSynth8Impl;
+typedef struct IDirectMusicSynthSinkImpl IDirectMusicSynthSinkImpl;
+
+/*****************************************************************************
+ * Predeclare the interface implementation structures
+ */
+extern ICOM_VTABLE(IDirectMusicSynth8) DirectMusicSynth8_Vtbl;
+extern ICOM_VTABLE(IDirectMusicSynthSink) DirectMusicSynthSink_Vtbl;
+
+/*****************************************************************************
+ * ClassFactory
+ */
+/* can support IID_IDirectMusicSynth and IID_IDirectMusicSynth8
+ * return always an IDirectMusicSynthImpl
+ */
+extern HRESULT WINAPI DMUSIC_CreateDirectMusicSynth (LPCGUID lpcGUID, LPDIRECTMUSICSYNTH8* ppDMSynth, LPUNKNOWN pUnkOuter);
+/* can support IID_IDirectMusicSynthSink
+ * return always an IDirectMusicSynthSinkImpl
+ */
+extern HRESULT WINAPI DMUSIC_CreateDirectMusicSynthSink (LPCGUID lpcGUID, LPDIRECTMUSICSYNTHSINK* ppDMSynthSink, LPUNKNOWN pUnkOuter);
+
+/*****************************************************************************
+ * IDirectMusicSynth8Impl implementation structure
+ */
+struct IDirectMusicSynth8Impl
+{
+ /* IUnknown fields */
+ ICOM_VFIELD(IDirectMusicSynth8);
+ DWORD ref;
+
+ /* IDirectMusicSynth8 fields */
+ DMUS_PORTCAPS pCaps;
+ BOOL fActive;
+ IReferenceClock* pLatencyClock;
+ IDirectMusicSynthSinkImpl* pSynthSink;
+};
+
+/* IUnknown: */
+extern HRESULT WINAPI IDirectMusicSynth8Impl_QueryInterface (LPDIRECTMUSICSYNTH8 iface, REFIID riid, LPVOID *ppobj);
+extern ULONG WINAPI IDirectMusicSynth8Impl_AddRef (LPDIRECTMUSICSYNTH8 iface);
+extern ULONG WINAPI IDirectMusicSynth8Impl_Release (LPDIRECTMUSICSYNTH8 iface);
+/* IDirectMusicSynth: */
+extern HRESULT WINAPI IDirectMusicSynth8Impl_Open (LPDIRECTMUSICSYNTH8 iface, LPDMUS_PORTPARAMS pPortParams);
+extern HRESULT WINAPI IDirectMusicSynth8Impl_Close (LPDIRECTMUSICSYNTH8 iface);
+extern HRESULT WINAPI IDirectMusicSynth8Impl_SetNumChannelGroups (LPDIRECTMUSICSYNTH8 iface, DWORD dwGroups);
+extern HRESULT WINAPI IDirectMusicSynth8Impl_Download (LPDIRECTMUSICSYNTH8 iface, LPHANDLE phDownload, LPVOID pvData, LPBOOL pbFree);
+extern HRESULT WINAPI IDirectMusicSynth8Impl_Unload (LPDIRECTMUSICSYNTH8 iface, HANDLE hDownload, HRESULT (CALLBACK* lpFreeHandle)(HANDLE,HANDLE), HANDLE hUserData);
+extern HRESULT WINAPI IDirectMusicSynth8Impl_PlayBuffer (LPDIRECTMUSICSYNTH8 iface, REFERENCE_TIME rt, LPBYTE pbBuffer, DWORD cbBuffer);
+extern HRESULT WINAPI IDirectMusicSynth8Impl_GetRunningStats (LPDIRECTMUSICSYNTH8 iface, LPDMUS_SYNTHSTATS pStats);
+extern HRESULT WINAPI IDirectMusicSynth8Impl_GetPortCaps (LPDIRECTMUSICSYNTH8 iface, LPDMUS_PORTCAPS pCaps);
+extern HRESULT WINAPI IDirectMusicSynth8Impl_SetMasterClock (LPDIRECTMUSICSYNTH8 iface, IReferenceClock* pClock);
+extern HRESULT WINAPI IDirectMusicSynth8Impl_GetLatencyClock (LPDIRECTMUSICSYNTH8 iface, IReferenceClock** ppClock);
+extern HRESULT WINAPI IDirectMusicSynth8Impl_Activate (LPDIRECTMUSICSYNTH8 iface, BOOL fEnable);
+extern HRESULT WINAPI IDirectMusicSynth8Impl_SetSynthSink (LPDIRECTMUSICSYNTH8 iface, IDirectMusicSynthSink* pSynthSink);
+extern HRESULT WINAPI IDirectMusicSynth8Impl_Render (LPDIRECTMUSICSYNTH8 iface, short* pBuffer, DWORD dwLength, LONGLONG llPosition);
+extern HRESULT WINAPI IDirectMusicSynth8Impl_SetChannelPriority (LPDIRECTMUSICSYNTH8 iface, DWORD dwChannelGroup, DWORD dwChannel, DWORD dwPriority);
+extern HRESULT WINAPI IDirectMusicSynth8Impl_GetChannelPriority (LPDIRECTMUSICSYNTH8 iface, DWORD dwChannelGroup, DWORD dwChannel, LPDWORD pdwPriority);
+extern HRESULT WINAPI IDirectMusicSynth8Impl_GetFormat (LPDIRECTMUSICSYNTH8 iface, LPWAVEFORMATEX pWaveFormatEx, LPDWORD pdwWaveFormatExSiz);
+extern HRESULT WINAPI IDirectMusicSynth8Impl_GetAppend (LPDIRECTMUSICSYNTH8 iface, DWORD* pdwAppend);
+/* IDirectMusicSynth8: */
+extern HRESULT WINAPI IDirectMusicSynth8Impl_PlayVoice (LPDIRECTMUSICSYNTH8 iface, REFERENCE_TIME rt, DWORD dwVoiceId, DWORD dwChannelGroup, DWORD dwChannel, DWORD dwDLId, long prPitch, long vrVolume, SAMPLE_TIME stVoiceStart, SAMPLE_TIME stLoopStart, SAMPLE_TIME stLoopEnd);
+extern HRESULT WINAPI IDirectMusicSynth8Impl_StopVoice (LPDIRECTMUSICSYNTH8 iface, REFERENCE_TIME rt, DWORD dwVoiceId);
+extern HRESULT WINAPI IDirectMusicSynth8Impl_GetVoiceState (LPDIRECTMUSICSYNTH8 iface, DWORD dwVoice[], DWORD cbVoice, DMUS_VOICE_STATE dwVoiceState[]);
+extern HRESULT WINAPI IDirectMusicSynth8Impl_Refresh (LPDIRECTMUSICSYNTH8 iface, DWORD dwDownloadID, DWORD dwFlags);
+extern HRESULT WINAPI IDirectMusicSynth8Impl_AssignChannelToBuses (LPDIRECTMUSICSYNTH8 iface, DWORD dwChannelGroup, DWORD dwChannel, LPDWORD pdwBuses, DWORD cBuses);
+
+/*****************************************************************************
+ * IDirectMusicSynthSinkImpl implementation structure
+ */
+struct IDirectMusicSynthSinkImpl
+{
+ /* IUnknown fields */
+ ICOM_VFIELD(IDirectMusicSynthSink);
+ DWORD ref;
+
+ /* IDirectMusicSynthSinkImpl fields */
+};
+
+/* IUnknown: */
+extern HRESULT WINAPI IDirectMusicSynthSinkImpl_QueryInterface (LPDIRECTMUSICSYNTHSINK iface, REFIID riid, LPVOID *ppobj);
+extern ULONG WINAPI IDirectMusicSynthSinkImpl_AddRef (LPDIRECTMUSICSYNTHSINK iface);
+extern ULONG WINAPI IDirectMusicSynthSinkImpl_Release (LPDIRECTMUSICSYNTHSINK iface);
+/* IDirectMusicSynthSinkImpl: */
+extern HRESULT WINAPI IDirectMusicSynthSinkImpl_Init (LPDIRECTMUSICSYNTHSINK iface, IDirectMusicSynth* pSynth);
+extern HRESULT WINAPI IDirectMusicSynthSinkImpl_SetMasterClock (LPDIRECTMUSICSYNTHSINK iface, IReferenceClock* pClock);
+extern HRESULT WINAPI IDirectMusicSynthSinkImpl_GetLatencyClock (LPDIRECTMUSICSYNTHSINK iface, IReferenceClock** ppClock);
+extern HRESULT WINAPI IDirectMusicSynthSinkImpl_Activate (LPDIRECTMUSICSYNTHSINK iface, BOOL fEnable);
+extern HRESULT WINAPI IDirectMusicSynthSinkImpl_SampleToRefTime (LPDIRECTMUSICSYNTHSINK iface, LONGLONG llSampleTime, REFERENCE_TIME* prfTime);
+extern HRESULT WINAPI IDirectMusicSynthSinkImpl_RefTimeToSample (LPDIRECTMUSICSYNTHSINK iface, REFERENCE_TIME rfTime, LONGLONG* pllSampleTime);
+extern HRESULT WINAPI IDirectMusicSynthSinkImpl_SetDirectSound (LPDIRECTMUSICSYNTHSINK iface, LPDIRECTSOUND pDirectSound, LPDIRECTSOUNDBUFFER pDirectSoundBuffer);
+extern HRESULT WINAPI IDirectMusicSynthSinkImpl_GetDesiredBufferSize (LPDIRECTMUSICSYNTHSINK iface, LPDWORD pdwBufferSizeInSamples);
+
+#endif /* __WINE_DMSYNTH_PRIVATE_H */
