dlls/dmusic/download.c

   1 /* IDirectMusicDownload Implementation
   2  *
   3  * Copyright (C) 2003-2004 Rok Mandeljc
   4  *
   5  * This program is free software; you can redistribute it and/or modify
   6  * it under the terms of the GNU General Public License as published by
   7  * the Free Software Foundation; either version 2 of the License, or
   8  * (at your option) any later version.
   9  *
  10  * This program is distributed in the hope that it will be useful,
  11  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13  * GNU Library General Public License for more details.
  14  *
  15  * You should have received a copy of the GNU General Public License
  16  * along with this program; if not, write to the Free Software
  17  * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
  18  */
  19
  20 #include "dmusic_private.h"
  21
  22 WINE_DEFAULT_DEBUG_CHANNEL(dmusic);
  23
  24 /* IDirectMusicDownloadImpl IUnknown part: */
  25 HRESULT WINAPI IDirectMusicDownloadImpl_QueryInterface (LPDIRECTMUSICDOWNLOAD iface, REFIID riid, LPVOID *ppobj) {
  26         IDirectMusicDownloadImpl *This = (IDirectMusicDownloadImpl *)iface;
  27         TRACE("(%p, %s, %p)\n", This, debugstr_dmguid(riid), ppobj);
  28
  29         if (IsEqualIID (riid, &IID_IUnknown)
  30                 || IsEqualIID (riid, &IID_IDirectMusicDownload)) {
  31                 IDirectMusicDownloadImpl_AddRef(iface);
  32                 *ppobj = This;
  33                 return S_OK;
  34         }
  35         WARN("(%p, %s, %p): not found\n", This, debugstr_dmguid(riid), ppobj);
  36         return E_NOINTERFACE;
  37 }
  38
  39 ULONG WINAPI IDirectMusicDownloadImpl_AddRef (LPDIRECTMUSICDOWNLOAD iface) {
  40         IDirectMusicDownloadImpl *This = (IDirectMusicDownloadImpl *)iface;
  41         TRACE("(%p): AddRef from %ld\n", This, This->ref);
  42         return ++(This->ref);
  43 }
  44
  45 ULONG WINAPI IDirectMusicDownloadImpl_Release (LPDIRECTMUSICDOWNLOAD iface) {
  46         IDirectMusicDownloadImpl *This = (IDirectMusicDownloadImpl *)iface;
  47         ULONG ref = --This->ref;
  48         TRACE("(%p): ReleaseRef to %ld\n", This, This->ref);
  49         if (ref == 0) {
  50                 HeapFree(GetProcessHeap(), 0, This);
  51         }
  52         return ref;
  53 }
  54
  55 /* IDirectMusicDownloadImpl IDirectMusicDownload part: */
  56 HRESULT WINAPI IDirectMusicDownloadImpl_GetBuffer (LPDIRECTMUSICDOWNLOAD iface, void** ppvBuffer, DWORD* pdwSize) {
  57         IDirectMusicDownloadImpl *This = (IDirectMusicDownloadImpl *)iface;
  58         FIXME("(%p, %p, %p): stub\n", This, ppvBuffer, pdwSize);
  59         return S_OK;
  60 }
  61
  62 IDirectMusicDownloadVtbl DirectMusicDownload_Vtbl = {
  63         IDirectMusicDownloadImpl_QueryInterface,
  64         IDirectMusicDownloadImpl_AddRef,
  65         IDirectMusicDownloadImpl_Release,
  66         IDirectMusicDownloadImpl_GetBuffer
  67 };
  68
  69 /* for ClassFactory */
  70 HRESULT WINAPI DMUSIC_CreateDirectMusicDownloadImpl (LPCGUID lpcGUID, LPVOID* ppobj, LPUNKNOWN pUnkOuter) {
  71         IDirectMusicDownloadImpl* dmdl;
  72
  73         dmdl = HeapAlloc (GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(IDirectMusicDownloadImpl));
  74         if (NULL == dmdl) {
  75                 *ppobj = (LPVOID) NULL;
  76                 return E_OUTOFMEMORY;
  77         }
  78         dmdl->lpVtbl = &DirectMusicDownload_Vtbl;
  79         dmdl->ref = 0; /* will be inited by QueryInterface */
  80
  81         return IDirectMusicDownloadImpl_QueryInterface ((LPDIRECTMUSICDOWNLOAD)dmdl, lpcGUID, ppobj);
  82 }