winmm: Constify some variables.
[wine] / dlls / dinput8 / dinput8_main.c
1 /* DirectInput 8
2  *
3  * Copyright 2002 TransGaming Technologies Inc.
4  * Copyright 2006 Roderick Colenbrander
5  *
6  * This library is free software; you can redistribute it and/or
7  * modify it under the terms of the GNU Lesser General Public
8  * License as published by the Free Software Foundation; either
9  * version 2.1 of the License, or (at your option) any later version.
10  *
11  * This library is distributed in the hope that it will be useful,
12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
14  * Lesser General Public License for more details.
15  *
16  * You should have received a copy of the GNU Lesser General Public
17  * License along with this library; if not, write to the Free Software
18  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
19  */
20
21 #include "config.h"
22 #include <assert.h>
23 #include <stdarg.h>
24 #include <string.h>
25
26 #define COBJMACROS
27
28 #include "wine/debug.h"
29 #include "windef.h"
30 #include "winbase.h"
31 #include "winerror.h"
32 #include "objbase.h"
33 #include "rpcproxy.h"
34 #include "dinput.h"
35
36 WINE_DEFAULT_DEBUG_CHANNEL(dinput);
37
38 static HINSTANCE instance;
39 static LONG dll_count;
40
41 /*
42  * Dll lifetime tracking declaration
43  */
44 static void LockModule(void)
45 {
46     InterlockedIncrement(&dll_count);
47 }
48
49 static void UnlockModule(void)
50 {
51     InterlockedDecrement(&dll_count);
52 }
53
54 /******************************************************************************
55  *      DirectInput8Create (DINPUT8.@)
56  */
57 HRESULT WINAPI DECLSPEC_HOTPATCH DirectInput8Create(HINSTANCE hinst, DWORD dwVersion, REFIID riid, LPVOID *ppDI, LPUNKNOWN punkOuter) {
58     IDirectInputA *pDI;
59     HRESULT hr, hrCo;
60
61     TRACE("hInst (%p), dwVersion: %d, riid (%s), punkOuter (%p))\n", hinst, dwVersion, debugstr_guid(riid), punkOuter);
62
63     if (!ppDI)
64         return E_POINTER;
65
66     if (!IsEqualGUID(&IID_IDirectInput8A, riid) &&
67         !IsEqualGUID(&IID_IDirectInput8W, riid) &&
68         !IsEqualGUID(&IID_IUnknown, riid))
69     {
70         *ppDI = NULL;
71         return DIERR_NOINTERFACE;
72     }
73
74     hrCo = CoInitialize(NULL);
75
76     hr = CoCreateInstance(&CLSID_DirectInput, NULL, CLSCTX_INPROC_SERVER, &IID_IDirectInputA, (void **)&pDI);
77
78     /* Ensure balance of calls. */
79     if (SUCCEEDED(hrCo))
80         CoUninitialize();
81
82     if (FAILED(hr)) {
83         ERR("CoCreateInstance failed with hr = 0x%08x\n", hr);
84         return hr;
85     }
86
87     hr = IDirectInput_QueryInterface(pDI, riid, ppDI);
88     IDirectInput_Release(pDI);
89
90     if (FAILED(hr))
91         return hr;
92
93     /* When aggregation is used (punkOuter!=NULL) the application needs to manually call Initialize. */
94     if(punkOuter == NULL && IsEqualGUID(&IID_IDirectInput8A, riid)) {
95         IDirectInput8A *DI = *ppDI;
96
97         hr = IDirectInput8_Initialize(DI, hinst, dwVersion);
98         if (FAILED(hr))
99         {
100             IDirectInput8_Release(DI);
101             *ppDI = NULL;
102             return hr;
103         }
104     }
105
106     if(punkOuter == NULL && IsEqualGUID(&IID_IDirectInput8W, riid)) {
107         IDirectInput8W *DI = *ppDI;
108
109         hr = IDirectInput8_Initialize(DI, hinst, dwVersion);
110         if (FAILED(hr))
111         {
112             IDirectInput8_Release(DI);
113             *ppDI = NULL;
114             return hr;
115         }
116     }
117
118     return S_OK;
119 }
120
121 /*******************************************************************************
122  * DirectInput8 ClassFactory
123  */
124 typedef struct
125 {
126     /* IUnknown fields */
127     IClassFactory IClassFactory_iface;
128 } IClassFactoryImpl;
129
130 static inline IClassFactoryImpl *impl_from_IClassFactory(IClassFactory *iface)
131 {
132     return CONTAINING_RECORD(iface, IClassFactoryImpl, IClassFactory_iface);
133 }
134
135 static HRESULT WINAPI DI8CF_QueryInterface(LPCLASSFACTORY iface,REFIID riid,LPVOID *ppobj) {
136     IClassFactoryImpl *This = impl_from_IClassFactory(iface);
137     FIXME("%p %s %p\n",This,debugstr_guid(riid),ppobj);
138     return E_NOINTERFACE;
139 }
140
141 static ULONG WINAPI DI8CF_AddRef(LPCLASSFACTORY iface) {
142     LockModule();
143     return 2;
144 }
145
146 static ULONG WINAPI DI8CF_Release(LPCLASSFACTORY iface) {
147     UnlockModule();
148     return 1;
149 }
150
151 static HRESULT WINAPI DI8CF_CreateInstance(LPCLASSFACTORY iface,LPUNKNOWN pOuter,REFIID riid,LPVOID *ppobj) {
152     IClassFactoryImpl *This = impl_from_IClassFactory(iface);
153
154     TRACE("(%p)->(%p,%s,%p)\n",This,pOuter,debugstr_guid(riid),ppobj);
155     if( IsEqualGUID( &IID_IDirectInput8A, riid ) || IsEqualGUID( &IID_IDirectInput8W, riid ) || IsEqualGUID( &IID_IUnknown, riid )) {
156         IDirectInputA *ppDI;
157         HRESULT hr;
158
159         hr = CoCreateInstance(&CLSID_DirectInput, NULL, CLSCTX_INPROC_SERVER, &IID_IDirectInputA, (void **)&ppDI);
160         if (FAILED(hr))
161             return hr;
162
163         hr = IDirectInput_QueryInterface(ppDI, riid, ppobj);
164         IDirectInput_Release(ppDI);
165
166         return hr;
167     }
168
169     ERR("(%p,%p,%s,%p) Interface not found!\n",This,pOuter,debugstr_guid(riid),ppobj);    
170     return E_NOINTERFACE;
171 }
172
173 static HRESULT WINAPI DI8CF_LockServer(LPCLASSFACTORY iface,BOOL dolock) {
174     TRACE("(%p)->(%d)\n", iface, dolock);
175
176     if(dolock)
177         LockModule();
178     else
179         UnlockModule();
180
181     return S_OK;
182 }
183
184 static const IClassFactoryVtbl DI8CF_Vtbl = {
185     DI8CF_QueryInterface,
186     DI8CF_AddRef,
187     DI8CF_Release,
188     DI8CF_CreateInstance,
189     DI8CF_LockServer
190 };
191 static IClassFactoryImpl DINPUT8_CF = { { &DI8CF_Vtbl } };
192
193
194 /***********************************************************************
195  *              DllCanUnloadNow (DINPUT8.@)
196  */
197 HRESULT WINAPI DllCanUnloadNow(void)
198 {
199     return dll_count == 0 ? S_OK : S_FALSE;
200 }
201
202 /***********************************************************************
203  *              DllGetClassObject (DINPUT8.@)
204  */
205 HRESULT WINAPI DllGetClassObject(REFCLSID rclsid, REFIID riid, LPVOID *ppv)
206 {
207     TRACE("(%s,%s,%p)\n", debugstr_guid(rclsid), debugstr_guid(riid), ppv);
208     if ( IsEqualCLSID( &IID_IClassFactory, riid ) ) {
209         *ppv = &DINPUT8_CF;
210         IClassFactory_AddRef((IClassFactory*)*ppv);
211         return S_OK;
212     }
213
214     FIXME("(%s,%s,%p): no interface found.\n", debugstr_guid(rclsid), debugstr_guid(riid), ppv);
215     return CLASS_E_CLASSNOTAVAILABLE;
216 }
217
218 /***********************************************************************
219  *              DllMain
220  */
221 BOOL WINAPI DllMain(HINSTANCE hInstDLL, DWORD reason, LPVOID lpv)
222 {
223     switch (reason)
224     {
225     case DLL_PROCESS_ATTACH:
226         instance = hInstDLL;
227         DisableThreadLibraryCalls( hInstDLL );
228         break;
229     }
230     return TRUE;
231 }
232
233 /***********************************************************************
234  *              DllRegisterServer (DINPUT8.@)
235  */
236 HRESULT WINAPI DllRegisterServer(void)
237 {
238     return __wine_register_resources( instance );
239 }
240
241 /***********************************************************************
242  *              DllUnregisterServer (DINPUT8.@)
243  */
244 HRESULT WINAPI DllUnregisterServer(void)
245 {
246     return __wine_unregister_resources( instance );
247 }