dlls/evr/main.c

   1 /*
   2  * Copyright (C) 2015 Austin English
   3  *
   4  * This library is free software; you can redistribute it and/or
   5  * modify it under the terms of the GNU Lesser General Public
   6  * License as published by the Free Software Foundation; either
   7  * version 2.1 of the License, or (at your option) any later version.
   8  *
   9  * This library is distributed in the hope that it will be useful,
  10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  12  * Lesser General Public License for more details.
  13  *
  14  * You should have received a copy of the GNU Lesser General Public
  15  * License along with this library; if not, write to the Free Software
  16  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
  17  */
  18
  19 #define COBJMACROS
  20
  21 #include "config.h"
  22
  23 #include <stdarg.h>
  24
  25 #include "windef.h"
  26 #include "winbase.h"
  27
  28 #include "ole2.h"
  29 #include "rpcproxy.h"
  30
  31 #include "evr_private.h"
  32
  33 #include "wine/debug.h"
  34
  35 WINE_DEFAULT_DEBUG_CHANNEL(evr);
  36
  37 static HINSTANCE instance_evr;
  38
  39 BOOL WINAPI DllMain(HINSTANCE instance, DWORD reason, LPVOID reserved)
  40 {
  41     TRACE("(%p, %d, %p)\n", instance, reason, reserved);
  42
  43     switch (reason)
  44     {
  45         case DLL_WINE_PREATTACH:
  46             return FALSE;    /* prefer native version */
  47         case DLL_PROCESS_ATTACH:
  48             instance_evr = instance;
  49             DisableThreadLibraryCalls(instance);
  50             break;
  51     }
  52
  53     return TRUE;
  54 }
  55
  56 typedef struct {
  57     IClassFactory IClassFactory_iface;
  58
  59     LONG ref;
  60     HRESULT (*pfnCreateInstance)(IUnknown *unk_outer, void **ppobj);
  61 } IClassFactoryImpl;
  62
  63 static inline IClassFactoryImpl *impl_from_IClassFactory(IClassFactory *iface)
  64 {
  65     return CONTAINING_RECORD(iface, IClassFactoryImpl, IClassFactory_iface);
  66 }
  67
  68 struct object_creation_info
  69 {
  70     const CLSID *clsid;
  71     HRESULT (*pfnCreateInstance)(IUnknown *unk_outer, void **ppobj);
  72 };
  73
  74 static const struct object_creation_info object_creation[] =
  75 {
  76     { &CLSID_EnhancedVideoRenderer, evr_filter_create },
  77 };
  78
  79 static HRESULT WINAPI classfactory_QueryInterface(IClassFactory *iface, REFIID riid, void **ppobj)
  80 {
  81     IClassFactoryImpl *This = impl_from_IClassFactory(iface);
  82
  83     if (IsEqualGUID(riid, &IID_IUnknown)
  84         || IsEqualGUID(riid, &IID_IClassFactory))
  85     {
  86         IClassFactory_AddRef(iface);
  87         *ppobj = &This->IClassFactory_iface;
  88         return S_OK;
  89     }
  90
  91     WARN("(%p)->(%s,%p),not found\n", This, debugstr_guid(riid), ppobj);
  92     return E_NOINTERFACE;
  93 }
  94
  95 static ULONG WINAPI classfactory_AddRef(IClassFactory *iface)
  96 {
  97     IClassFactoryImpl *This = impl_from_IClassFactory(iface);
  98     return InterlockedIncrement(&This->ref);
  99 }
 100
 101 static ULONG WINAPI classfactory_Release(IClassFactory *iface)
 102 {
 103     IClassFactoryImpl *This = impl_from_IClassFactory(iface);
 104     ULONG ref = InterlockedDecrement(&This->ref);
 105
 106     if (ref == 0)
 107         HeapFree(GetProcessHeap(), 0, This);
 108
 109     return ref;
 110 }
 111
 112 static HRESULT WINAPI classfactory_CreateInstance(IClassFactory *iface, IUnknown *outer_unk, REFIID riid, void **ppobj)
 113 {
 114     IClassFactoryImpl *This = impl_from_IClassFactory(iface);
 115     HRESULT hres;
 116     IUnknown *unk;
 117
 118     TRACE("(%p)->(%p,%s,%p)\n", This, outer_unk, debugstr_guid(riid), ppobj);
 119
 120     *ppobj = NULL;
 121     hres = This->pfnCreateInstance(outer_unk, (void **) &unk);
 122     if (SUCCEEDED(hres))
 123     {
 124         hres = IUnknown_QueryInterface(unk, riid, ppobj);
 125         IUnknown_Release(unk);
 126     }
 127     return hres;
 128 }
 129
 130 static HRESULT WINAPI classfactory_LockServer(IClassFactory *iface, BOOL dolock)
 131 {
 132     IClassFactoryImpl *This = impl_from_IClassFactory(iface);
 133     FIXME("(%p)->(%d), stub!\n", This, dolock);
 134     return S_OK;
 135 }
 136
 137 static const IClassFactoryVtbl classfactory_Vtbl =
 138 {
 139     classfactory_QueryInterface,
 140     classfactory_AddRef,
 141     classfactory_Release,
 142     classfactory_CreateInstance,
 143     classfactory_LockServer
 144 };
 145
 146 HRESULT WINAPI DllGetClassObject(REFCLSID rclsid, REFIID riid, void **ppv)
 147 {
 148     unsigned int i;
 149     IClassFactoryImpl *factory;
 150
 151     TRACE("(%s,%s,%p)\n", debugstr_guid(rclsid), debugstr_guid(riid), ppv);
 152
 153     if (!IsEqualGUID(&IID_IClassFactory, riid)
 154          && !IsEqualGUID( &IID_IUnknown, riid))
 155         return E_NOINTERFACE;
 156
 157     for (i = 0; i < ARRAY_SIZE(object_creation); i++)
 158     {
 159         if (IsEqualGUID(object_creation[i].clsid, rclsid))
 160             break;
 161     }
 162
 163     if (i == ARRAY_SIZE(object_creation))
 164     {
 165         FIXME("%s: no class found.\n", debugstr_guid(rclsid));
 166         return CLASS_E_CLASSNOTAVAILABLE;
 167     }
 168
 169     factory = HeapAlloc(GetProcessHeap(), 0, sizeof(*factory));
 170     if (factory == NULL)
 171         return E_OUTOFMEMORY;
 172
 173     factory->IClassFactory_iface.lpVtbl = &classfactory_Vtbl;
 174     factory->ref = 1;
 175
 176     factory->pfnCreateInstance = object_creation[i].pfnCreateInstance;
 177
 178     *ppv = &(factory->IClassFactory_iface);
 179     return S_OK;
 180 }
 181
 182 HRESULT WINAPI DllCanUnloadNow(void)
 183 {
 184     return S_FALSE;
 185 }
 186
 187 HRESULT WINAPI DllRegisterServer(void)
 188 {
 189     return __wine_register_resources(instance_evr);
 190 }
 191
 192 HRESULT WINAPI DllUnregisterServer(void)
 193 {
 194     return __wine_unregister_resources(instance_evr);
 195 }