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