dlls/dmband/dmband_main.c

   1 /* DirectMusicBand Main
   2  *
   3  * Copyright (C) 2003-2004 Rok Mandeljc
   4  *
   5  * This program is free software; you can redistribute it and/or
   6  * modify it under the terms of the GNU Lesser General Public
   7  * License as published by the Free Software Foundation; either
   8  * version 2.1 of the License, or (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 GNU
  13  * Lesser General Public License for more details.
  14  *
  15  * You should have received a copy of the GNU Lesser General Public
  16  * License along with this program; if not, write to the Free Software
  17  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
  18  */
  19
  20 #include "dmband_private.h"
  21 #include "rpcproxy.h"
  22 #include "dmobject.h"
  23
  24 WINE_DEFAULT_DEBUG_CHANNEL(dmband);
  25
  26 LONG DMBAND_refCount = 0;
  27
  28 typedef struct {
  29         IClassFactory IClassFactory_iface;
  30         HRESULT WINAPI (*fnCreateInstance)(REFIID riid, void **ret_iface);
  31 } IClassFactoryImpl;
  32
  33 /******************************************************************
  34  *      IClassFactory implementation
  35  */
  36 static inline IClassFactoryImpl *impl_from_IClassFactory(IClassFactory *iface)
  37 {
  38         return CONTAINING_RECORD(iface, IClassFactoryImpl, IClassFactory_iface);
  39 }
  40
  41 static HRESULT WINAPI ClassFactory_QueryInterface(IClassFactory *iface, REFIID riid, void **ppv)
  42 {
  43         if (ppv == NULL)
  44                 return E_POINTER;
  45
  46         if (IsEqualGUID(&IID_IUnknown, riid))
  47                 TRACE("(%p)->(IID_IUnknown %p)\n", iface, ppv);
  48         else if (IsEqualGUID(&IID_IClassFactory, riid))
  49                 TRACE("(%p)->(IID_IClassFactory %p)\n", iface, ppv);
  50         else {
  51                 FIXME("(%p)->(%s %p)\n", iface, debugstr_guid(riid), ppv);
  52                 *ppv = NULL;
  53                 return E_NOINTERFACE;
  54         }
  55
  56         *ppv = iface;
  57         IClassFactory_AddRef(iface);
  58         return S_OK;
  59 }
  60
  61 static ULONG WINAPI ClassFactory_AddRef(IClassFactory *iface)
  62 {
  63         DMBAND_LockModule();
  64
  65         return 2; /* non-heap based object */
  66 }
  67
  68 static ULONG WINAPI ClassFactory_Release(IClassFactory *iface)
  69 {
  70         DMBAND_UnlockModule();
  71
  72         return 1; /* non-heap based object */
  73 }
  74
  75 static HRESULT WINAPI ClassFactory_CreateInstance(IClassFactory *iface, IUnknown *pUnkOuter,
  76         REFIID riid, void **ppv)
  77 {
  78         IClassFactoryImpl *This = impl_from_IClassFactory(iface);
  79
  80         TRACE ("(%p, %s, %p)\n", pUnkOuter, debugstr_dmguid(riid), ppv);
  81
  82         if (pUnkOuter) {
  83                 *ppv = NULL;
  84                 return CLASS_E_NOAGGREGATION;
  85         }
  86
  87         return This->fnCreateInstance(riid, ppv);
  88 }
  89
  90 static HRESULT WINAPI ClassFactory_LockServer(IClassFactory *iface, BOOL dolock)
  91 {
  92         TRACE("(%d)\n", dolock);
  93
  94         if (dolock)
  95                 DMBAND_LockModule();
  96         else
  97                 DMBAND_UnlockModule();
  98
  99         return S_OK;
 100 }
 101
 102 static const IClassFactoryVtbl classfactory_vtbl = {
 103         ClassFactory_QueryInterface,
 104         ClassFactory_AddRef,
 105         ClassFactory_Release,
 106         ClassFactory_CreateInstance,
 107         ClassFactory_LockServer
 108 };
 109
 110 static IClassFactoryImpl Band_CF = {{&classfactory_vtbl}, create_dmband};
 111 static IClassFactoryImpl BandTrack_CF = {{&classfactory_vtbl}, create_dmbandtrack};
 112
 113 /******************************************************************
 114  *              DllCanUnloadNow (DMBAND.@)
 115  *
 116  *
 117  */
 118 HRESULT WINAPI DllCanUnloadNow(void)
 119 {
 120         return DMBAND_refCount != 0 ? S_FALSE : S_OK;
 121 }
 122
 123
 124 /******************************************************************
 125  *              DllGetClassObject (DMBAND.@)
 126  *
 127  *
 128  */
 129 HRESULT WINAPI DllGetClassObject(REFCLSID rclsid, REFIID riid, LPVOID *ppv)
 130 {
 131     TRACE("(%s, %s, %p)\n", debugstr_dmguid(rclsid), debugstr_dmguid(riid), ppv);
 132
 133     if (IsEqualCLSID(rclsid, &CLSID_DirectMusicBand))
 134         return IClassFactory_QueryInterface(&Band_CF.IClassFactory_iface, riid, ppv);
 135     else if (IsEqualCLSID(rclsid, &CLSID_DirectMusicBandTrack))
 136         return IClassFactory_QueryInterface(&BandTrack_CF.IClassFactory_iface, riid, ppv);
 137
 138     WARN("(%s, %s, %p): no interface found.\n", debugstr_dmguid(rclsid), debugstr_dmguid(riid), ppv);
 139     return CLASS_E_CLASSNOTAVAILABLE;
 140 }