dlls/qedit/main.c

   1 /*              DirectShow Editing Services (qedit.dll)
   2  *
   3  * Copyright 2008 Google (Lei Zhang)
   4  *
   5  * This library 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 library 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 library; if not, write to the Free Software
  17  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
  18  */
  19
  20 #include "qedit_private.h"
  21 #include "rpcproxy.h"
  22 #include "wine/debug.h"
  23
  24 WINE_DEFAULT_DEBUG_CHANNEL(qedit);
  25
  26 static HINSTANCE instance;
  27
  28 BOOL WINAPI DllMain(HINSTANCE hInstDLL, DWORD fdwReason, LPVOID lpv)
  29 {
  30     switch(fdwReason) {
  31         case DLL_PROCESS_ATTACH:
  32             instance = hInstDLL;
  33             DisableThreadLibraryCalls(hInstDLL);
  34             break;
  35         case DLL_PROCESS_DETACH:
  36             break;
  37     }
  38     return TRUE;
  39 }
  40
  41 /******************************************************************************
  42  * DirectShow ClassFactory
  43  */
  44 typedef struct {
  45     IClassFactory IClassFactory_iface;
  46     LONG ref;
  47     HRESULT (*pfnCreateInstance)(IUnknown *pUnkOuter, LPVOID *ppObj);
  48 } IClassFactoryImpl;
  49
  50 static inline IClassFactoryImpl *impl_from_IClassFactory(IClassFactory *iface)
  51 {
  52     return CONTAINING_RECORD(iface, IClassFactoryImpl, IClassFactory_iface);
  53 }
  54
  55 struct object_creation_info
  56 {
  57     const CLSID *clsid;
  58     HRESULT (*pfnCreateInstance)(IUnknown *pUnkOuter, LPVOID *ppObj);
  59 };
  60
  61 static const struct object_creation_info object_creation[] =
  62 {
  63     { &CLSID_MediaDet, MediaDet_create },
  64     { &CLSID_SampleGrabber, SampleGrabber_create },
  65 };
  66
  67 static HRESULT WINAPI DSCF_QueryInterface(IClassFactory *iface, REFIID riid, void **ppobj)
  68 {
  69     if (IsEqualGUID(riid, &IID_IUnknown)
  70         || IsEqualGUID(riid, &IID_IClassFactory))
  71     {
  72         IClassFactory_AddRef(iface);
  73         *ppobj = iface;
  74         return S_OK;
  75     }
  76
  77     *ppobj = NULL;
  78     WARN("(%p)->(%s,%p), not found\n", iface, debugstr_guid(riid), ppobj);
  79     return E_NOINTERFACE;
  80 }
  81
  82 static ULONG WINAPI DSCF_AddRef(IClassFactory *iface)
  83 {
  84     IClassFactoryImpl *This = impl_from_IClassFactory(iface);
  85     return InterlockedIncrement(&This->ref);
  86 }
  87
  88 static ULONG WINAPI DSCF_Release(IClassFactory *iface)
  89 {
  90     IClassFactoryImpl *This = impl_from_IClassFactory(iface);
  91     ULONG ref = InterlockedDecrement(&This->ref);
  92
  93     if (ref == 0)
  94         CoTaskMemFree(This);
  95
  96     return ref;
  97 }
  98
  99 static HRESULT WINAPI DSCF_CreateInstance(IClassFactory *iface, IUnknown *pOuter, REFIID riid,
 100         void **ppobj)
 101 {
 102     IClassFactoryImpl *This = impl_from_IClassFactory(iface);
 103     HRESULT hres;
 104     LPUNKNOWN punk;
 105
 106     TRACE("(%p)->(%p,%s,%p)\n",This,pOuter,debugstr_guid(riid),ppobj);
 107
 108     *ppobj = NULL;
 109     if (pOuter && !IsEqualGUID(&IID_IUnknown, riid))
 110         return E_INVALIDARG;
 111
 112     hres = This->pfnCreateInstance(pOuter, (LPVOID *) &punk);
 113     if (SUCCEEDED(hres)) {
 114         hres = IUnknown_QueryInterface(punk, riid, ppobj);
 115         IUnknown_Release(punk);
 116     }
 117     return hres;
 118 }
 119
 120 static HRESULT WINAPI DSCF_LockServer(IClassFactory *iface, BOOL dolock)
 121 {
 122     IClassFactoryImpl *This = impl_from_IClassFactory(iface);
 123     FIXME("(%p)->(%d),stub!\n",This,dolock);
 124     return S_OK;
 125 }
 126
 127 static const IClassFactoryVtbl DSCF_Vtbl =
 128 {
 129     DSCF_QueryInterface,
 130     DSCF_AddRef,
 131     DSCF_Release,
 132     DSCF_CreateInstance,
 133     DSCF_LockServer
 134 };
 135
 136
 137 /***********************************************************************
 138  *              DllCanUnloadNow (QEDIT.@)
 139  */
 140 HRESULT WINAPI DllCanUnloadNow(void)
 141 {
 142     return S_OK;
 143 }
 144
 145 /*******************************************************************************
 146  * DllGetClassObject [QEDIT.@]
 147  * Retrieves class object from a DLL object
 148  *
 149  * PARAMS
 150  *    rclsid [I] CLSID for the class object
 151  *    riid   [I] Reference to identifier of interface for class object
 152  *    ppv    [O] Address of variable to receive interface pointer for riid
 153  *
 154  * RETURNS
 155  *    Success: S_OK
 156  *    Failure: CLASS_E_CLASSNOTAVAILABLE, E_OUTOFMEMORY, E_INVALIDARG,
 157  *             E_UNEXPECTED, E_NOINTERFACE
 158  */
 159
 160 HRESULT WINAPI DllGetClassObject(REFCLSID rclsid, REFIID riid, LPVOID *ppv)
 161 {
 162     unsigned int i;
 163     IClassFactoryImpl *factory;
 164
 165     TRACE("(%s,%s,%p)\n", debugstr_guid(rclsid), debugstr_guid(riid), ppv);
 166
 167     if ( !IsEqualGUID( &IID_IClassFactory, riid )
 168          && ! IsEqualGUID( &IID_IUnknown, riid) )
 169         return E_NOINTERFACE;
 170
 171     for (i=0; i < sizeof(object_creation)/sizeof(object_creation[0]); i++)
 172     {
 173         if (IsEqualGUID(object_creation[i].clsid, rclsid))
 174             break;
 175     }
 176
 177     if (i == sizeof(object_creation)/sizeof(object_creation[0]))
 178     {
 179         FIXME("%s: no class found.\n", debugstr_guid(rclsid));
 180         return CLASS_E_CLASSNOTAVAILABLE;
 181     }
 182
 183     factory = CoTaskMemAlloc(sizeof(*factory));
 184     if (factory == NULL) return E_OUTOFMEMORY;
 185
 186     factory->IClassFactory_iface.lpVtbl = &DSCF_Vtbl;
 187     factory->ref = 1;
 188
 189     factory->pfnCreateInstance = object_creation[i].pfnCreateInstance;
 190
 191     *ppv = &factory->IClassFactory_iface;
 192     return S_OK;
 193 }
 194
 195 /***********************************************************************
 196  *              DllRegisterServer (QEDIT.@)
 197  */
 198 HRESULT WINAPI DllRegisterServer(void)
 199 {
 200     return __wine_register_resources( instance );
 201 }
 202
 203 /***********************************************************************
 204  *              DllUnregisterServer (QEDIT.@)
 205  */
 206 HRESULT WINAPI DllUnregisterServer(void)
 207 {
 208     return __wine_unregister_resources( instance );
 209 }