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