2 * MultiMedia Streams Base Functions (AMSTREAM.DLL)
4 * Copyright 2004 Christian Costa
6 * This file contains the (internal) driver registration functions,
7 * driver enumeration APIs and DirectDraw creation functions.
9 * This library is free software; you can redistribute it and/or
10 * modify it under the terms of the GNU Lesser General Public
11 * License as published by the Free Software Foundation; either
12 * version 2.1 of the License, or (at your option) any later version.
14 * This library is distributed in the hope that it will be useful,
15 * but WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
17 * Lesser General Public License for more details.
19 * You should have received a copy of the GNU Lesser General Public
20 * License along with this library; if not, write to the Free Software
21 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
36 #include "amstream_private.h"
39 #include "wine/debug.h"
41 WINE_DEFAULT_DEBUG_CHANNEL(amstream);
43 static DWORD dll_ref = 0;
45 /* For the moment, do nothing here. */
46 BOOL WINAPI DllMain(HINSTANCE hInstDLL, DWORD fdwReason, LPVOID lpv)
49 case DLL_PROCESS_ATTACH:
50 DisableThreadLibraryCalls(hInstDLL);
52 case DLL_PROCESS_DETACH:
58 /******************************************************************************
59 * Multimedia Streams ClassFactory
62 IClassFactory ITF_IClassFactory;
65 HRESULT (*pfnCreateInstance)(IUnknown *pUnkOuter, LPVOID *ppObj);
68 struct object_creation_info
71 HRESULT (*pfnCreateInstance)(IUnknown *pUnkOuter, LPVOID *ppObj);
74 static const struct object_creation_info object_creation[] =
76 { &CLSID_AMMultiMediaStream, AM_create },
77 { &CLSID_AMDirectDrawStream, AM_create },
81 AMCF_QueryInterface(LPCLASSFACTORY iface,REFIID riid,LPVOID *ppobj)
83 IClassFactoryImpl *This = (IClassFactoryImpl *)iface;
85 if (IsEqualGUID(riid, &IID_IUnknown)
86 || IsEqualGUID(riid, &IID_IClassFactory))
88 IClassFactory_AddRef(iface);
93 WARN("(%p)->(%s,%p),not found\n",This,debugstr_guid(riid),ppobj);
97 static ULONG WINAPI AMCF_AddRef(LPCLASSFACTORY iface)
99 IClassFactoryImpl *This = (IClassFactoryImpl *)iface;
100 return InterlockedIncrement(&This->ref);
103 static ULONG WINAPI AMCF_Release(LPCLASSFACTORY iface)
105 IClassFactoryImpl *This = (IClassFactoryImpl *)iface;
107 ULONG ref = InterlockedDecrement(&This->ref);
110 HeapFree(GetProcessHeap(), 0, This);
116 static HRESULT WINAPI AMCF_CreateInstance(LPCLASSFACTORY iface, LPUNKNOWN pOuter,
117 REFIID riid, LPVOID *ppobj)
119 IClassFactoryImpl *This = (IClassFactoryImpl *)iface;
123 TRACE("(%p)->(%p,%s,%p)\n",This,pOuter,debugstr_guid(riid),ppobj);
126 hres = This->pfnCreateInstance(pOuter, (LPVOID *) &punk);
127 if (SUCCEEDED(hres)) {
128 hres = IUnknown_QueryInterface(punk, riid, ppobj);
129 IUnknown_Release(punk);
134 static HRESULT WINAPI AMCF_LockServer(LPCLASSFACTORY iface,BOOL dolock)
136 IClassFactoryImpl *This = (IClassFactoryImpl *)iface;
137 FIXME("(%p)->(%d),stub!\n",This,dolock);
141 static const IClassFactoryVtbl DSCF_Vtbl =
150 /*******************************************************************************
151 * DllGetClassObject [AMSTREAM.@]
152 * Retrieves class object from a DLL object
155 * Docs say returns STDAPI
158 * rclsid [I] CLSID for the class object
159 * riid [I] Reference to identifier of interface for class object
160 * ppv [O] Address of variable to receive interface pointer for riid
164 * Failure: CLASS_E_CLASSNOTAVAILABLE, E_OUTOFMEMORY, E_INVALIDARG,
167 HRESULT WINAPI DllGetClassObject(REFCLSID rclsid, REFIID riid, LPVOID *ppv)
170 IClassFactoryImpl *factory;
172 TRACE("(%s,%s,%p)\n", debugstr_guid(rclsid), debugstr_guid(riid), ppv);
174 if ( !IsEqualGUID( &IID_IClassFactory, riid )
175 && ! IsEqualGUID( &IID_IUnknown, riid) )
176 return E_NOINTERFACE;
178 for (i=0; i < sizeof(object_creation)/sizeof(object_creation[0]); i++)
180 if (IsEqualGUID(object_creation[i].clsid, rclsid))
184 if (i == sizeof(object_creation)/sizeof(object_creation[0]))
186 FIXME("%s: no class found.\n", debugstr_guid(rclsid));
187 return CLASS_E_CLASSNOTAVAILABLE;
190 factory = HeapAlloc(GetProcessHeap(), 0, sizeof(*factory));
191 if (factory == NULL) return E_OUTOFMEMORY;
193 factory->ITF_IClassFactory.lpVtbl = &DSCF_Vtbl;
196 factory->pfnCreateInstance = object_creation[i].pfnCreateInstance;
198 *ppv = &(factory->ITF_IClassFactory);
202 /***********************************************************************
203 * DllCanUnloadNow (AMSTREAM.@)
205 HRESULT WINAPI DllCanUnloadNow(void)
207 return dll_ref != 0 ? S_FALSE : S_OK;