dlls/dmloader/dmloader_main.c

   1 /* DirectMusicLoader 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 "dmloader_private.h"
  21 #include "rpcproxy.h"
  22
  23 WINE_DEFAULT_DEBUG_CHANNEL(dmloader);
  24
  25 static HINSTANCE instance;
  26 LONG dwDirectMusicContainer = 0;
  27 LONG dwDirectMusicLoader = 0;
  28
  29 typedef struct {
  30     IClassFactory IClassFactory_iface;
  31     HRESULT WINAPI (*fnCreateInstance)(REFIID riid, void **ppv, IUnknown *pUnkOuter);
  32 } IClassFactoryImpl;
  33
  34 /******************************************************************
  35  *      IClassFactory implementation
  36  */
  37 static inline IClassFactoryImpl *impl_from_IClassFactory(IClassFactory *iface)
  38 {
  39     return CONTAINING_RECORD(iface, IClassFactoryImpl, IClassFactory_iface);
  40 }
  41
  42 static HRESULT WINAPI ClassFactory_QueryInterface(IClassFactory *iface, REFIID riid, void **ppv)
  43 {
  44     if (ppv == NULL)
  45         return E_POINTER;
  46
  47     if (IsEqualGUID(&IID_IUnknown, riid))
  48         TRACE("(%p)->(IID_IUnknown %p)\n", iface, ppv);
  49     else if (IsEqualGUID(&IID_IClassFactory, riid))
  50         TRACE("(%p)->(IID_IClassFactory %p)\n", iface, ppv);
  51     else {
  52         FIXME("(%p)->(%s %p)\n", iface, debugstr_guid(riid), ppv);
  53         *ppv = NULL;
  54         return E_NOINTERFACE;
  55 }
  56
  57     *ppv = iface;
  58     IClassFactory_AddRef(iface);
  59     return S_OK;
  60 }
  61
  62 static ULONG WINAPI ClassFactory_AddRef(IClassFactory *iface)
  63 {
  64     InterlockedIncrement(&dwDirectMusicLoader);
  65
  66     return 2; /* non-heap based object */
  67 }
  68
  69 static ULONG WINAPI ClassFactory_Release(IClassFactory *iface)
  70 {
  71     InterlockedDecrement(&dwDirectMusicLoader);
  72
  73     return 1; /* non-heap based object */
  74 }
  75
  76 static HRESULT WINAPI ClassFactory_CreateInstance(IClassFactory *iface, IUnknown *pUnkOuter,
  77     REFIID riid, void **ppv)
  78 {
  79     IClassFactoryImpl *This = impl_from_IClassFactory(iface);
  80
  81     TRACE ("(%p, %s, %p)\n", pUnkOuter, debugstr_dmguid(riid), ppv);
  82
  83     return This->fnCreateInstance(riid, ppv, pUnkOuter);
  84 }
  85
  86 static HRESULT WINAPI ClassFactory_LockServer(IClassFactory *iface, BOOL dolock)
  87 {
  88     TRACE("(%d)\n", dolock);
  89
  90     if (dolock)
  91         InterlockedIncrement(&dwDirectMusicLoader);
  92     else
  93         InterlockedDecrement(&dwDirectMusicLoader);
  94
  95     return S_OK;
  96 }
  97
  98 static const IClassFactoryVtbl classfactory_vtbl = {
  99     ClassFactory_QueryInterface,
 100     ClassFactory_AddRef,
 101     ClassFactory_Release,
 102     ClassFactory_CreateInstance,
 103     ClassFactory_LockServer
 104 };
 105
 106 static IClassFactoryImpl dm_loader_CF = {{&classfactory_vtbl}, DMUSIC_CreateDirectMusicLoaderImpl};
 107 static IClassFactoryImpl dm_container_CF = {{&classfactory_vtbl},
 108                                             DMUSIC_CreateDirectMusicContainerImpl};
 109
 110 /******************************************************************
 111  *              DllMain
 112  */
 113 BOOL WINAPI DllMain (HINSTANCE hinstDLL, DWORD fdwReason, LPVOID lpvReserved) {
 114         if (fdwReason == DLL_PROCESS_ATTACH) {
 115                 instance = hinstDLL;
 116                 DisableThreadLibraryCalls(hinstDLL);
 117                 /* FIXME: Initialisation */
 118         } else if (fdwReason == DLL_PROCESS_DETACH) {
 119                 /* FIXME: Cleanup */
 120         }
 121         return TRUE;
 122 }
 123
 124
 125 /******************************************************************
 126  *              DllCanUnloadNow (DMLOADER.@)
 127  */
 128 HRESULT WINAPI DllCanUnloadNow (void)
 129 {
 130     TRACE("(void)\n");
 131         /* if there are no instances left, it's safe to release */
 132         if (!dwDirectMusicContainer && !dwDirectMusicLoader)
 133                 return S_OK;
 134         else
 135         return S_FALSE;
 136 }
 137
 138
 139 /******************************************************************
 140  *              DllGetClassObject (DMLOADER.@)
 141  */
 142 HRESULT WINAPI DllGetClassObject (REFCLSID rclsid, REFIID riid, LPVOID *ppv)
 143 {
 144     TRACE("(%s, %s, %p)\n", debugstr_dmguid(rclsid), debugstr_dmguid(riid), ppv);
 145     if (IsEqualCLSID (rclsid, &CLSID_DirectMusicLoader) && IsEqualIID (riid, &IID_IClassFactory)) {
 146         IClassFactory_AddRef(&dm_loader_CF.IClassFactory_iface);
 147         *ppv = &dm_loader_CF.IClassFactory_iface;
 148         return S_OK;
 149     } else if (IsEqualCLSID (rclsid, &CLSID_DirectMusicContainer) && IsEqualIID (riid, &IID_IClassFactory)) {
 150         IClassFactory_AddRef(&dm_container_CF.IClassFactory_iface);
 151         *ppv = &dm_container_CF.IClassFactory_iface;
 152         return S_OK;
 153     }
 154
 155     WARN(": no class found\n");
 156     return CLASS_E_CLASSNOTAVAILABLE;
 157 }
 158
 159 /***********************************************************************
 160  *              DllRegisterServer (DMLOADER.@)
 161  */
 162 HRESULT WINAPI DllRegisterServer(void)
 163 {
 164     return __wine_register_resources( instance, NULL );
 165 }
 166
 167 /***********************************************************************
 168  *              DllUnregisterServer (DMLOADER.@)
 169  */
 170 HRESULT WINAPI DllUnregisterServer(void)
 171 {
 172     return __wine_unregister_resources( instance, NULL );
 173 }