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downloadedinstrument.c

/* IDirectMusicDownloadedInstrument 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 "dmusic_private.h"

WINE_DEFAULT_DEBUG_CHANNEL(dmusic);

/* IDirectMusicDownloadedInstrumentImpl IUnknown part: */
HRESULT WINAPI IDirectMusicDownloadedInstrumentImpl_QueryInterface (LPDIRECTMUSICDOWNLOADEDINSTRUMENT iface, REFIID riid, LPVOID *ppobj) {
      IDirectMusicDownloadedInstrumentImpl *This = (IDirectMusicDownloadedInstrumentImpl *)iface;
      TRACE("(%p, %s, %p)\n", This, debugstr_dmguid(riid), ppobj);

      if (IsEqualIID (riid, &IID_IUnknown)
            || IsEqualIID (riid, &IID_IDirectMusicDownloadedInstrument)) {
            IDirectMusicDownloadedInstrumentImpl_AddRef(iface);
            *ppobj = This;
            return S_OK;
      }
      WARN("(%p, %s, %p): not found\n", This, debugstr_dmguid(riid), ppobj);
      return E_NOINTERFACE;
}

ULONG WINAPI IDirectMusicDownloadedInstrumentImpl_AddRef (LPDIRECTMUSICDOWNLOADEDINSTRUMENT iface) {
      IDirectMusicDownloadedInstrumentImpl *This = (IDirectMusicDownloadedInstrumentImpl *)iface;
      ULONG refCount = InterlockedIncrement(&This->ref);

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

      DMUSIC_LockModule();

      return refCount;
}

ULONG WINAPI IDirectMusicDownloadedInstrumentImpl_Release (LPDIRECTMUSICDOWNLOADEDINSTRUMENT iface) {
      IDirectMusicDownloadedInstrumentImpl *This = (IDirectMusicDownloadedInstrumentImpl *)iface;
      ULONG refCount = InterlockedDecrement(&This->ref);

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

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

      DMUSIC_UnlockModule();
      
      return refCount;
}

/* IDirectMusicDownloadedInstrumentImpl IDirectMusicDownloadedInstrument part: */
/* none at this time */

IDirectMusicDownloadedInstrumentVtbl DirectMusicDownloadedInstrument_Vtbl = {
      IDirectMusicDownloadedInstrumentImpl_QueryInterface,
      IDirectMusicDownloadedInstrumentImpl_AddRef,
      IDirectMusicDownloadedInstrumentImpl_Release
};

/* for ClassFactory */
HRESULT WINAPI DMUSIC_CreateDirectMusicDownloadedInstrumentImpl (LPCGUID lpcGUID, LPVOID* ppobj, LPUNKNOWN pUnkOuter) {
      IDirectMusicDownloadedInstrumentImpl* dmdlinst;
      
      dmdlinst = HeapAlloc (GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(IDirectMusicDownloadedInstrumentImpl));
      if (NULL == dmdlinst) {
            *ppobj = NULL;
            return E_OUTOFMEMORY;
      }
      dmdlinst->lpVtbl = &DirectMusicDownloadedInstrument_Vtbl;
      dmdlinst->ref = 0; /* will be inited by QueryInterface */
      
      return IDirectMusicDownloadedInstrumentImpl_QueryInterface ((LPDIRECTMUSICDOWNLOADEDINSTRUMENT)dmdlinst, lpcGUID, ppobj);     
}

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