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download.c

/* IDirectMusicDownload 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 "dmusic_private.h"

WINE_DEFAULT_DEBUG_CHANNEL(dmusic);

/* IDirectMusicDownloadImpl IUnknown part: */
static HRESULT WINAPI IDirectMusicDownloadImpl_QueryInterface (LPDIRECTMUSICDOWNLOAD iface, REFIID riid, LPVOID *ppobj) {
      IDirectMusicDownloadImpl *This = (IDirectMusicDownloadImpl *)iface;
      TRACE("(%p, %s, %p)\n", This, debugstr_dmguid(riid), ppobj);

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

static ULONG WINAPI IDirectMusicDownloadImpl_AddRef (LPDIRECTMUSICDOWNLOAD iface) {
      IDirectMusicDownloadImpl *This = (IDirectMusicDownloadImpl *)iface;
      ULONG refCount = InterlockedIncrement(&This->ref);

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

      DMUSIC_LockModule();

      return refCount;
}

static ULONG WINAPI IDirectMusicDownloadImpl_Release (LPDIRECTMUSICDOWNLOAD iface) {
      IDirectMusicDownloadImpl *This = (IDirectMusicDownloadImpl *)iface;
      ULONG refCount = InterlockedDecrement(&This->ref);

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

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

      DMUSIC_UnlockModule();
      
      return refCount;
}

/* IDirectMusicDownloadImpl IDirectMusicDownload part: */
static HRESULT WINAPI IDirectMusicDownloadImpl_GetBuffer (LPDIRECTMUSICDOWNLOAD iface, void** ppvBuffer, DWORD* pdwSize) {
      IDirectMusicDownloadImpl *This = (IDirectMusicDownloadImpl *)iface;
      FIXME("(%p, %p, %p): stub\n", This, ppvBuffer, pdwSize);
      return S_OK;
}

static const IDirectMusicDownloadVtbl DirectMusicDownload_Vtbl = {
      IDirectMusicDownloadImpl_QueryInterface,
      IDirectMusicDownloadImpl_AddRef,
      IDirectMusicDownloadImpl_Release,
      IDirectMusicDownloadImpl_GetBuffer
};

/* for ClassFactory */
HRESULT WINAPI DMUSIC_CreateDirectMusicDownloadImpl (LPCGUID lpcGUID, LPVOID* ppobj, LPUNKNOWN pUnkOuter) {
      IDirectMusicDownloadImpl* dmdl;
      
      dmdl = HeapAlloc (GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(IDirectMusicDownloadImpl));
      if (NULL == dmdl) {
            *ppobj = NULL;
            return E_OUTOFMEMORY;
      }
      dmdl->lpVtbl = &DirectMusicDownload_Vtbl;
      dmdl->ref = 0; /* will be inited by QueryInterface */
      
      return IDirectMusicDownloadImpl_QueryInterface ((LPDIRECTMUSICDOWNLOAD)dmdl, lpcGUID, ppobj);
}

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