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_AMTimeline, AMTimeline_create },
  62     { &CLSID_MediaDet, MediaDet_create },
  63     { &CLSID_SampleGrabber, SampleGrabber_create },
  64 };
  65
  66 static HRESULT WINAPI DSCF_QueryInterface(IClassFactory *iface, REFIID riid, void **ppobj)
  67 {
  68     if (IsEqualGUID(riid, &IID_IUnknown)
  69         || IsEqualGUID(riid, &IID_IClassFactory))
  70     {
  71         IClassFactory_AddRef(iface);
  72         *ppobj = iface;
  73         return S_OK;
  74     }
  75
  76     *ppobj = NULL;
  77     WARN("(%p)->(%s,%p), not found\n", iface, debugstr_guid(riid), ppobj);
  78     return E_NOINTERFACE;
  79 }
  80
  81 static ULONG WINAPI DSCF_AddRef(IClassFactory *iface)
  82 {
  83     IClassFactoryImpl *This = impl_from_IClassFactory(iface);
  84     return InterlockedIncrement(&This->ref);
  85 }
  86
  87 static ULONG WINAPI DSCF_Release(IClassFactory *iface)
  88 {
  89     IClassFactoryImpl *This = impl_from_IClassFactory(iface);
  90     ULONG ref = InterlockedDecrement(&This->ref);
  91
  92     if (ref == 0)
  93         CoTaskMemFree(This);
  94
  95     return ref;
  96 }
  97
  98 static HRESULT WINAPI DSCF_CreateInstance(IClassFactory *iface, IUnknown *pOuter, REFIID riid,
  99         void **ppobj)
 100 {
 101     IClassFactoryImpl *This = impl_from_IClassFactory(iface);
 102     HRESULT hres;
 103     LPUNKNOWN punk;
 104
 105     TRACE("(%p)->(%p,%s,%p)\n",This,pOuter,debugstr_guid(riid),ppobj);
 106
 107     *ppobj = NULL;
 108     if (pOuter && !IsEqualGUID(&IID_IUnknown, riid))
 109         return E_INVALIDARG;
 110
 111     hres = This->pfnCreateInstance(pOuter, (LPVOID *) &punk);
 112     if (SUCCEEDED(hres)) {
 113         hres = IUnknown_QueryInterface(punk, riid, ppobj);
 114         IUnknown_Release(punk);
 115     }
 116     return hres;
 117 }
 118
 119 static HRESULT WINAPI DSCF_LockServer(IClassFactory *iface, BOOL dolock)
 120 {
 121     IClassFactoryImpl *This = impl_from_IClassFactory(iface);
 122     FIXME("(%p)->(%d),stub!\n",This,dolock);
 123     return S_OK;
 124 }
 125
 126 static const IClassFactoryVtbl DSCF_Vtbl =
 127 {
 128     DSCF_QueryInterface,
 129     DSCF_AddRef,
 130     DSCF_Release,
 131     DSCF_CreateInstance,
 132     DSCF_LockServer
 133 };
 134
 135
 136 /***********************************************************************
 137  *              DllCanUnloadNow (QEDIT.@)
 138  */
 139 HRESULT WINAPI DllCanUnloadNow(void)
 140 {
 141     return S_FALSE;
 142 }
 143
 144 /*******************************************************************************
 145  * DllGetClassObject [QEDIT.@]
 146  * Retrieves class object from a DLL object
 147  *
 148  * PARAMS
 149  *    rclsid [I] CLSID for the class object
 150  *    riid   [I] Reference to identifier of interface for class object
 151  *    ppv    [O] Address of variable to receive interface pointer for riid
 152  *
 153  * RETURNS
 154  *    Success: S_OK
 155  *    Failure: CLASS_E_CLASSNOTAVAILABLE, E_OUTOFMEMORY, E_INVALIDARG,
 156  *             E_UNEXPECTED, E_NOINTERFACE
 157  */
 158
 159 HRESULT WINAPI DllGetClassObject(REFCLSID rclsid, REFIID riid, LPVOID *ppv)
 160 {
 161     unsigned int i;
 162     IClassFactoryImpl *factory;
 163
 164     TRACE("(%s,%s,%p)\n", debugstr_guid(rclsid), debugstr_guid(riid), ppv);
 165
 166     if ( !IsEqualGUID( &IID_IClassFactory, riid )
 167          && ! IsEqualGUID( &IID_IUnknown, riid) )
 168         return E_NOINTERFACE;
 169
 170     for (i = 0; i < ARRAY_SIZE(object_creation); i++)
 171     {
 172         if (IsEqualGUID(object_creation[i].clsid, rclsid))
 173             break;
 174     }
 175
 176     if (i == ARRAY_SIZE(object_creation))
 177     {
 178         FIXME("%s: no class found.\n", debugstr_guid(rclsid));
 179         return CLASS_E_CLASSNOTAVAILABLE;
 180     }
 181
 182     factory = CoTaskMemAlloc(sizeof(*factory));
 183     if (factory == NULL) return E_OUTOFMEMORY;
 184
 185     factory->IClassFactory_iface.lpVtbl = &DSCF_Vtbl;
 186     factory->ref = 1;
 187
 188     factory->pfnCreateInstance = object_creation[i].pfnCreateInstance;
 189
 190     *ppv = &factory->IClassFactory_iface;
 191     return S_OK;
 192 }
 193
 194 /***********************************************************************
 195  *              DllRegisterServer (QEDIT.@)
 196  */
 197 HRESULT WINAPI DllRegisterServer(void)
 198 {
 199     return __wine_register_resources( instance );
 200 }
 201
 202 /***********************************************************************
 203  *              DllUnregisterServer (QEDIT.@)
 204  */
 205 HRESULT WINAPI DllUnregisterServer(void)
 206 {
 207     return __wine_unregister_resources( instance );
 208 }