gdi32: Simplify the code a little by using a separate variable for the return value.
[wine/multimedia.git] / dlls / d3dxof / main.c
blobd0ba37d832358cf2a7d763bc1638bc6e993ee3a6
1 /*
2 * DirectX Files Functions (D3DXOF.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
24 #include <stdarg.h>
25 #include <string.h>
27 #define COBJMACROS
29 #include "windef.h"
30 #include "winbase.h"
31 #include "winuser.h"
32 #include "winreg.h"
33 #include "winerror.h"
35 #include "ole2.h"
36 #include "rpcproxy.h"
37 #include "uuids.h"
39 #include "d3dxof_private.h"
40 #include "dxfile.h"
42 #include "wine/debug.h"
44 WINE_DEFAULT_DEBUG_CHANNEL(d3dxof);
46 static HINSTANCE instance;
47 static LONG dll_ref = 0;
49 /* For the moment, do nothing here. */
50 BOOL WINAPI DllMain(HINSTANCE hInstDLL, DWORD fdwReason, LPVOID lpv)
52 switch(fdwReason) {
53 case DLL_PROCESS_ATTACH:
54 instance = hInstDLL;
55 DisableThreadLibraryCalls(hInstDLL);
56 break;
57 case DLL_PROCESS_DETACH:
58 break;
60 return TRUE;
63 /******************************************************************************
64 * DirectX File ClassFactory
66 typedef struct {
67 IClassFactory IClassFactory_iface;
69 LONG ref;
70 HRESULT (*pfnCreateInstance)(IUnknown *pUnkOuter, LPVOID *ppObj);
71 } IClassFactoryImpl;
73 static inline IClassFactoryImpl *impl_from_IClassFactory(IClassFactory *iface)
75 return CONTAINING_RECORD(iface, IClassFactoryImpl, IClassFactory_iface);
78 struct object_creation_info
80 const CLSID *clsid;
81 HRESULT (*pfnCreateInstance)(IUnknown *pUnkOuter, LPVOID *ppObj);
84 static const struct object_creation_info object_creation[] =
86 { &CLSID_CDirectXFile, IDirectXFileImpl_Create },
89 static HRESULT WINAPI XFCF_QueryInterface(LPCLASSFACTORY iface,REFIID riid, LPVOID *ppobj)
91 IClassFactoryImpl *This = impl_from_IClassFactory(iface);
93 if (IsEqualGUID(riid, &IID_IUnknown)
94 || IsEqualGUID(riid, &IID_IClassFactory))
96 IClassFactory_AddRef(iface);
97 *ppobj = &This->IClassFactory_iface;
98 return S_OK;
101 WARN("(%p)->(%s,%p),not found\n",This,debugstr_guid(riid),ppobj);
102 return E_NOINTERFACE;
105 static ULONG WINAPI XFCF_AddRef(LPCLASSFACTORY iface)
107 IClassFactoryImpl *This = impl_from_IClassFactory(iface);
108 return InterlockedIncrement(&This->ref);
111 static ULONG WINAPI XFCF_Release(LPCLASSFACTORY iface)
113 IClassFactoryImpl *This = impl_from_IClassFactory(iface);
115 ULONG ref = InterlockedDecrement(&This->ref);
117 if (ref == 0)
118 HeapFree(GetProcessHeap(), 0, This);
120 return ref;
123 static HRESULT WINAPI XFCF_CreateInstance(LPCLASSFACTORY iface, LPUNKNOWN pOuter, REFIID riid, LPVOID *ppobj)
125 IClassFactoryImpl *This = impl_from_IClassFactory(iface);
126 HRESULT hres;
127 LPUNKNOWN punk;
129 TRACE("(%p)->(%p,%s,%p)\n",This,pOuter,debugstr_guid(riid),ppobj);
131 *ppobj = NULL;
132 hres = This->pfnCreateInstance(pOuter, (LPVOID *) &punk);
133 if (SUCCEEDED(hres)) {
134 hres = IUnknown_QueryInterface(punk, riid, ppobj);
135 IUnknown_Release(punk);
137 return hres;
140 static HRESULT WINAPI XFCF_LockServer(LPCLASSFACTORY iface, BOOL dolock)
142 IClassFactoryImpl *This = impl_from_IClassFactory(iface);
143 FIXME("(%p)->(%d),stub!\n",This,dolock);
144 return S_OK;
147 static const IClassFactoryVtbl XFCF_Vtbl =
149 XFCF_QueryInterface,
150 XFCF_AddRef,
151 XFCF_Release,
152 XFCF_CreateInstance,
153 XFCF_LockServer
156 /***********************************************************************
157 * DirectXFileCreate (D3DXOF.@)
159 HRESULT WINAPI DirectXFileCreate(LPDIRECTXFILE* lplpDirectXFile)
161 HRESULT hr;
163 TRACE("(%p)\n", lplpDirectXFile);
165 if (!lplpDirectXFile)
166 return DXFILEERR_BADVALUE;
168 hr = IDirectXFileImpl_Create(NULL, (LPVOID)lplpDirectXFile);
170 if (FAILED(hr))
171 return DXFILEERR_BADALLOC;
173 return S_OK;
176 /*******************************************************************************
177 * DllGetClassObject [D3DXOF.@]
178 * Retrieves class object from a DLL object
180 * NOTES
181 * Docs say returns STDAPI
183 * PARAMS
184 * rclsid [I] CLSID for the class object
185 * riid [I] Reference to identifier of interface for class object
186 * ppv [O] Address of variable to receive interface pointer for riid
188 * RETURNS
189 * Success: S_OK
190 * Failure: CLASS_E_CLASSNOTAVAILABLE, E_OUTOFMEMORY, E_INVALIDARG,
191 * E_UNEXPECTED
193 HRESULT WINAPI DllGetClassObject(REFCLSID rclsid, REFIID riid, LPVOID *ppv)
195 unsigned int i;
196 IClassFactoryImpl *factory;
198 TRACE("(%s,%s,%p)\n", debugstr_guid(rclsid), debugstr_guid(riid), ppv);
200 if ( !IsEqualGUID( &IID_IClassFactory, riid )
201 && ! IsEqualGUID( &IID_IUnknown, riid) )
202 return E_NOINTERFACE;
204 for (i=0; i < sizeof(object_creation)/sizeof(object_creation[0]); i++)
206 if (IsEqualGUID(object_creation[i].clsid, rclsid))
207 break;
210 if (i == sizeof(object_creation)/sizeof(object_creation[0]))
212 FIXME("%s: no class found.\n", debugstr_guid(rclsid));
213 return CLASS_E_CLASSNOTAVAILABLE;
216 factory = HeapAlloc(GetProcessHeap(), 0, sizeof(*factory));
217 if (factory == NULL) return E_OUTOFMEMORY;
219 factory->IClassFactory_iface.lpVtbl = &XFCF_Vtbl;
220 factory->ref = 1;
222 factory->pfnCreateInstance = object_creation[i].pfnCreateInstance;
224 *ppv = &(factory->IClassFactory_iface);
225 return S_OK;
228 /***********************************************************************
229 * DllCanUnloadNow (D3DXOF.@)
231 HRESULT WINAPI DllCanUnloadNow(void)
233 return dll_ref != 0 ? S_FALSE : S_OK;
236 /***********************************************************************
237 * DllRegisterServer (D3DXOF.@)
239 HRESULT WINAPI DllRegisterServer(void)
241 return __wine_register_resources( instance );
244 /***********************************************************************
245 * DllUnregisterServer (D3DXOF.@)
247 HRESULT WINAPI DllUnregisterServer(void)
249 return __wine_unregister_resources( instance );