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     { &CLSID_MediaDet, MediaDet_create },
  56 };
  57
  58 static HRESULT WINAPI
  59 DSCF_QueryInterface(LPCLASSFACTORY iface,REFIID riid,LPVOID *ppobj)
  60 {
  61     IClassFactoryImpl *This = (IClassFactoryImpl *)iface;
  62
  63     if (IsEqualGUID(riid, &IID_IUnknown)
  64         || IsEqualGUID(riid, &IID_IClassFactory))
  65     {
  66         IClassFactory_AddRef(iface);
  67         *ppobj = This;
  68         return S_OK;
  69     }
  70
  71     *ppobj = NULL;
  72     WARN("(%p)->(%s,%p),not found\n",This,debugstr_guid(riid),ppobj);
  73     return E_NOINTERFACE;
  74 }
  75
  76 static ULONG WINAPI DSCF_AddRef(LPCLASSFACTORY iface)
  77 {
  78     IClassFactoryImpl *This = (IClassFactoryImpl *)iface;
  79     return InterlockedIncrement(&This->ref);
  80 }
  81
  82 static ULONG WINAPI DSCF_Release(LPCLASSFACTORY iface)
  83 {
  84     IClassFactoryImpl *This = (IClassFactoryImpl *)iface;
  85
  86     ULONG ref = InterlockedDecrement(&This->ref);
  87
  88     if (ref == 0)
  89         CoTaskMemFree(This);
  90
  91     return ref;
  92 }
  93
  94 static HRESULT WINAPI DSCF_CreateInstance(LPCLASSFACTORY iface, LPUNKNOWN pOuter, REFIID riid, LPVOID *ppobj)
  95 {
  96     IClassFactoryImpl *This = (IClassFactoryImpl *)iface;
  97     HRESULT hres;
  98     LPUNKNOWN punk;
  99
 100     TRACE("(%p)->(%p,%s,%p)\n",This,pOuter,debugstr_guid(riid),ppobj);
 101
 102     *ppobj = NULL;
 103     hres = This->pfnCreateInstance(pOuter, (LPVOID *) &punk);
 104     if (SUCCEEDED(hres)) {
 105         hres = IUnknown_QueryInterface(punk, riid, ppobj);
 106         IUnknown_Release(punk);
 107     }
 108     return hres;
 109 }
 110
 111 static HRESULT WINAPI DSCF_LockServer(LPCLASSFACTORY iface, BOOL dolock)
 112 {
 113     IClassFactoryImpl *This = (IClassFactoryImpl *)iface;
 114     FIXME("(%p)->(%d),stub!\n",This,dolock);
 115     return S_OK;
 116 }
 117
 118 static const IClassFactoryVtbl DSCF_Vtbl =
 119 {
 120     DSCF_QueryInterface,
 121     DSCF_AddRef,
 122     DSCF_Release,
 123     DSCF_CreateInstance,
 124     DSCF_LockServer
 125 };
 126
 127
 128 /***********************************************************************
 129  *              DllCanUnloadNow (QEDIT.@)
 130  */
 131 HRESULT WINAPI DllCanUnloadNow(void)
 132 {
 133     return S_OK;
 134 }
 135
 136 /*******************************************************************************
 137  * DllGetClassObject [QEDIT.@]
 138  * Retrieves class object from a DLL object
 139  *
 140  * PARAMS
 141  *    rclsid [I] CLSID for the class object
 142  *    riid   [I] Reference to identifier of interface for class object
 143  *    ppv    [O] Address of variable to receive interface pointer for riid
 144  *
 145  * RETURNS
 146  *    Success: S_OK
 147  *    Failure: CLASS_E_CLASSNOTAVAILABLE, E_OUTOFMEMORY, E_INVALIDARG,
 148  *             E_UNEXPECTED, E_NOINTERFACE
 149  */
 150
 151 HRESULT WINAPI DllGetClassObject(REFCLSID rclsid, REFIID riid, LPVOID *ppv)
 152 {
 153     unsigned int i;
 154     IClassFactoryImpl *factory;
 155
 156     TRACE("(%s,%s,%p)\n", debugstr_guid(rclsid), debugstr_guid(riid), ppv);
 157
 158     if ( !IsEqualGUID( &IID_IClassFactory, riid )
 159          && ! IsEqualGUID( &IID_IUnknown, riid) )
 160         return E_NOINTERFACE;
 161
 162     for (i=0; i < sizeof(object_creation)/sizeof(object_creation[0]); i++)
 163     {
 164         if (IsEqualGUID(object_creation[i].clsid, rclsid))
 165             break;
 166     }
 167
 168     if (i == sizeof(object_creation)/sizeof(object_creation[0]))
 169     {
 170         FIXME("%s: no class found.\n", debugstr_guid(rclsid));
 171         return CLASS_E_CLASSNOTAVAILABLE;
 172     }
 173
 174     factory = CoTaskMemAlloc(sizeof(*factory));
 175     if (factory == NULL) return E_OUTOFMEMORY;
 176
 177     factory->ITF_IClassFactory.lpVtbl = &DSCF_Vtbl;
 178     factory->ref = 1;
 179
 180     factory->pfnCreateInstance = object_creation[i].pfnCreateInstance;
 181
 182     *ppv = &(factory->ITF_IClassFactory);
 183     return S_OK;
 184 }