mshtml/tests: Make sure return value is used (LLVM/Clang).
[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     HRESULT hr, hrCo;
59
60     TRACE("hInst (%p), dwVersion: %d, riid (%s), punkOuter (%p))\n", hinst, dwVersion, debugstr_guid(riid), punkOuter);
61
62     /* The specified version needs to be dinput8 (0x800) or higher */
63     if(dwVersion < 0x800)
64         return DIERR_OLDDIRECTINPUTVERSION;
65
66     if( !(IsEqualGUID(&IID_IDirectInput8A, riid) || IsEqualGUID(&IID_IDirectInput8W, riid) || IsEqualGUID(&IID_IUnknown, riid)) )
67         return DIERR_INVALIDPARAM;
68
69     hrCo = CoInitialize(NULL);
70     
71     hr = CoCreateInstance( &CLSID_DirectInput8, punkOuter, CLSCTX_INPROC_SERVER, riid, ppDI);
72     if(FAILED(hr)) {
73         ERR("CoCreateInstance failed with hr = %d\n", hr);
74         return DIERR_INVALIDPARAM;
75     }
76
77     /*  ensure balance of calls */
78     if(hrCo == S_OK || hrCo == S_FALSE)
79         CoUninitialize();
80
81     /* When aggregation is used (punkOuter!=NULL) the application needs to manually call Initialize. */
82     if(punkOuter == NULL && IsEqualGUID(&IID_IDirectInput8A, riid)) {
83         LPDIRECTINPUTA DI = *ppDI;
84         IDirectInput8_Initialize(DI, hinst, dwVersion);
85     }
86
87     if(punkOuter == NULL && IsEqualGUID(&IID_IDirectInput8W, riid)) {
88         LPDIRECTINPUTW DI = *ppDI;
89         IDirectInput8_Initialize(DI, hinst, dwVersion);
90     }
91
92     return S_OK;
93 }
94
95 /*******************************************************************************
96  * DirectInput8 ClassFactory
97  */
98 typedef struct
99 {
100     /* IUnknown fields */
101     IClassFactory IClassFactory_iface;
102 } IClassFactoryImpl;
103
104 static inline IClassFactoryImpl *impl_from_IClassFactory(IClassFactory *iface)
105 {
106     return CONTAINING_RECORD(iface, IClassFactoryImpl, IClassFactory_iface);
107 }
108
109 static HRESULT WINAPI DI8CF_QueryInterface(LPCLASSFACTORY iface,REFIID riid,LPVOID *ppobj) {
110     IClassFactoryImpl *This = impl_from_IClassFactory(iface);
111     FIXME("%p %s %p\n",This,debugstr_guid(riid),ppobj);
112     return E_NOINTERFACE;
113 }
114
115 static ULONG WINAPI DI8CF_AddRef(LPCLASSFACTORY iface) {
116     LockModule();
117     return 2;
118 }
119
120 static ULONG WINAPI DI8CF_Release(LPCLASSFACTORY iface) {
121     UnlockModule();
122     return 1;
123 }
124
125 static HRESULT WINAPI DI8CF_CreateInstance(LPCLASSFACTORY iface,LPUNKNOWN pOuter,REFIID riid,LPVOID *ppobj) {
126     IClassFactoryImpl *This = impl_from_IClassFactory(iface);
127
128     TRACE("(%p)->(%p,%s,%p)\n",This,pOuter,debugstr_guid(riid),ppobj);
129     if( IsEqualGUID( &IID_IDirectInput8A, riid ) || IsEqualGUID( &IID_IDirectInput8W, riid ) || IsEqualGUID( &IID_IUnknown, riid )) {
130         return DirectInputCreateEx(0, DIRECTINPUT_VERSION, riid, ppobj, pOuter);
131     }
132
133     ERR("(%p,%p,%s,%p) Interface not found!\n",This,pOuter,debugstr_guid(riid),ppobj);    
134     return E_NOINTERFACE;
135 }
136
137 static HRESULT WINAPI DI8CF_LockServer(LPCLASSFACTORY iface,BOOL dolock) {
138     TRACE("(%p)->(%d)\n", iface, dolock);
139
140     if(dolock)
141         LockModule();
142     else
143         UnlockModule();
144
145     return S_OK;
146 }
147
148 static const IClassFactoryVtbl DI8CF_Vtbl = {
149     DI8CF_QueryInterface,
150     DI8CF_AddRef,
151     DI8CF_Release,
152     DI8CF_CreateInstance,
153     DI8CF_LockServer
154 };
155 static IClassFactoryImpl DINPUT8_CF = { { &DI8CF_Vtbl } };
156
157
158 /***********************************************************************
159  *              DllCanUnloadNow (DINPUT8.@)
160  */
161 HRESULT WINAPI DllCanUnloadNow(void)
162 {
163     return dll_count == 0 ? S_OK : S_FALSE;
164 }
165
166 /***********************************************************************
167  *              DllGetClassObject (DINPUT8.@)
168  */
169 HRESULT WINAPI DllGetClassObject(REFCLSID rclsid, REFIID riid, LPVOID *ppv)
170 {
171     TRACE("(%s,%s,%p)\n", debugstr_guid(rclsid), debugstr_guid(riid), ppv);
172     if ( IsEqualCLSID( &IID_IClassFactory, riid ) ) {
173         *ppv = &DINPUT8_CF;
174         IClassFactory_AddRef((IClassFactory*)*ppv);
175         return S_OK;
176     }
177
178     FIXME("(%s,%s,%p): no interface found.\n", debugstr_guid(rclsid), debugstr_guid(riid), ppv);
179     return CLASS_E_CLASSNOTAVAILABLE;
180 }
181
182 /***********************************************************************
183  *              DllMain
184  */
185 BOOL WINAPI DllMain(HINSTANCE hInstDLL, DWORD reason, LPVOID lpv)
186 {
187     switch (reason)
188     {
189     case DLL_PROCESS_ATTACH:
190         instance = hInstDLL;
191         DisableThreadLibraryCalls( hInstDLL );
192         break;
193     }
194     return TRUE;
195 }
196
197 /***********************************************************************
198  *              DllRegisterServer (DINPUT8.@)
199  */
200 HRESULT WINAPI DllRegisterServer(void)
201 {
202     return __wine_register_resources( instance, NULL );
203 }
204
205 /***********************************************************************
206  *              DllUnregisterServer (DINPUT8.@)
207  */
208 HRESULT WINAPI DllUnregisterServer(void)
209 {
210     return __wine_unregister_resources( instance, NULL );
211 }