shell32: Remove superflous NULL check (Coverity).
[wine/multimedia.git] / dlls / devenum / devenum_main.c
blob6867fea603065bd9c8e147fbe2a377bbc68076a8
1 /*
2 * exported dll functions for devenum.dll
4 * Copyright (C) 2002 John K. Hohm
5 * Copyright (C) 2002 Robert Shearman
7 * This library is free software; you can redistribute it and/or
8 * modify it under the terms of the GNU Lesser General Public
9 * License as published by the Free Software Foundation; either
10 * version 2.1 of the License, or (at your option) any later version.
12 * This library is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 * Lesser General Public License for more details.
17 * You should have received a copy of the GNU Lesser General Public
18 * License along with this library; if not, write to the Free Software
19 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
22 #include "devenum_private.h"
23 #include "rpcproxy.h"
24 #include "wine/debug.h"
26 WINE_DEFAULT_DEBUG_CHANNEL(devenum);
28 DECLSPEC_HIDDEN LONG dll_refs;
29 DECLSPEC_HIDDEN HINSTANCE DEVENUM_hInstance;
31 typedef struct
33 REFCLSID clsid;
34 LPCWSTR friendly_name;
35 BOOL instance;
36 } register_info;
38 static void DEVENUM_RegisterQuartz(void);
40 /***********************************************************************
41 * Global string constant definitions
43 const WCHAR clsid_keyname[6] = { 'C', 'L', 'S', 'I', 'D', 0 };
45 /***********************************************************************
46 * DllEntryPoint
48 BOOL WINAPI DllMain(HINSTANCE hinstDLL, DWORD fdwReason, LPVOID fImpLoad)
50 TRACE("%p 0x%x %p\n", hinstDLL, fdwReason, fImpLoad);
52 switch(fdwReason) {
53 case DLL_PROCESS_ATTACH:
54 DEVENUM_hInstance = hinstDLL;
55 DisableThreadLibraryCalls(hinstDLL);
56 break;
58 case DLL_PROCESS_DETACH:
59 DEVENUM_hInstance = 0;
60 break;
62 return TRUE;
65 /***********************************************************************
66 * DllGetClassObject (DEVENUM.@)
68 HRESULT WINAPI DllGetClassObject(REFCLSID rclsid, REFIID iid, LPVOID *ppv)
70 TRACE("(%s, %s, %p)\n", debugstr_guid(rclsid), debugstr_guid(iid), ppv);
72 *ppv = NULL;
74 /* FIXME: we should really have two class factories.
75 * Oh well - works just fine as it is */
76 if (IsEqualGUID(rclsid, &CLSID_SystemDeviceEnum) ||
77 IsEqualGUID(rclsid, &CLSID_CDeviceMoniker))
78 return IClassFactory_QueryInterface((IClassFactory*)&DEVENUM_ClassFactory, iid, ppv);
80 FIXME("CLSID: %s, IID: %s\n", debugstr_guid(rclsid), debugstr_guid(iid));
81 return CLASS_E_CLASSNOTAVAILABLE;
84 /***********************************************************************
85 * DllCanUnloadNow (DEVENUM.@)
87 HRESULT WINAPI DllCanUnloadNow(void)
89 return dll_refs != 0 ? S_FALSE : S_OK;
92 /***********************************************************************
93 * DllRegisterServer (DEVENUM.@)
95 HRESULT WINAPI DllRegisterServer(void)
97 HRESULT res;
98 IFilterMapper2 * pMapper = NULL;
99 LPVOID mapvptr;
101 TRACE("\n");
103 res = __wine_register_resources( DEVENUM_hInstance, NULL );
105 /* Quartz is needed for IFilterMapper2 */
106 DEVENUM_RegisterQuartz();
108 /*** ActiveMovieFilter Categories ***/
110 CoInitialize(NULL);
112 res = CoCreateInstance(&CLSID_FilterMapper2, NULL, CLSCTX_INPROC,
113 &IID_IFilterMapper2, &mapvptr);
114 if (SUCCEEDED(res))
116 static const WCHAR friendlyvidcap[] = {'V','i','d','e','o',' ','C','a','p','t','u','r','e',' ','S','o','u','r','c','e','s',0};
117 static const WCHAR friendlydshow[] = {'D','i','r','e','c','t','S','h','o','w',' ','F','i','l','t','e','r','s',0};
118 static const WCHAR friendlyvidcomp[] = {'V','i','d','e','o',' ','C','o','m','p','r','e','s','s','o','r','s',0};
119 static const WCHAR friendlyaudcap[] = {'A','u','d','i','o',' ','C','a','p','t','u','r','e',' ','S','o','u','r','c','e','s',0};
120 static const WCHAR friendlyaudcomp[] = {'A','u','d','i','o',' ','C','o','m','p','r','e','s','s','o','r','s',0};
121 static const WCHAR friendlyaudrend[] = {'A','u','d','i','o',' ','R','e','n','d','e','r','e','r','s',0};
122 static const WCHAR friendlymidirend[] = {'M','i','d','i',' ','R','e','n','d','e','r','e','r','s',0};
123 static const WCHAR friendlyextrend[] = {'E','x','t','e','r','n','a','l',' ','R','e','n','d','e','r','e','r','s',0};
124 static const WCHAR friendlydevctrl[] = {'D','e','v','i','c','e',' ','C','o','n','t','r','o','l',' ','F','i','l','t','e','r','s',0};
126 pMapper = mapvptr;
128 IFilterMapper2_CreateCategory(pMapper, &CLSID_VideoInputDeviceCategory, MERIT_DO_NOT_USE, friendlyvidcap);
129 IFilterMapper2_CreateCategory(pMapper, &CLSID_LegacyAmFilterCategory, MERIT_NORMAL, friendlydshow);
130 IFilterMapper2_CreateCategory(pMapper, &CLSID_VideoCompressorCategory, MERIT_DO_NOT_USE, friendlyvidcomp);
131 IFilterMapper2_CreateCategory(pMapper, &CLSID_AudioInputDeviceCategory, MERIT_DO_NOT_USE, friendlyaudcap);
132 IFilterMapper2_CreateCategory(pMapper, &CLSID_AudioCompressorCategory, MERIT_DO_NOT_USE, friendlyaudcomp);
133 IFilterMapper2_CreateCategory(pMapper, &CLSID_AudioRendererCategory, MERIT_NORMAL, friendlyaudrend);
134 IFilterMapper2_CreateCategory(pMapper, &CLSID_MidiRendererCategory, MERIT_NORMAL, friendlymidirend);
135 IFilterMapper2_CreateCategory(pMapper, &CLSID_TransmitCategory, MERIT_DO_NOT_USE, friendlyextrend);
136 IFilterMapper2_CreateCategory(pMapper, &CLSID_DeviceControlCategory, MERIT_DO_NOT_USE, friendlydevctrl);
138 IFilterMapper2_Release(pMapper);
141 CoUninitialize();
143 return res;
146 /***********************************************************************
147 * DllUnregisterServer (DEVENUM.@)
149 HRESULT WINAPI DllUnregisterServer(void)
151 FIXME("stub!\n");
152 return __wine_unregister_resources( DEVENUM_hInstance, NULL );
155 typedef HRESULT (WINAPI *DllRegisterServer_func)(void);
157 /* calls DllRegisterServer() for the Quartz DLL */
158 static void DEVENUM_RegisterQuartz(void)
160 HANDLE hDLL = LoadLibraryA("quartz.dll");
161 DllRegisterServer_func pDllRegisterServer = NULL;
162 if (hDLL)
163 pDllRegisterServer = (DllRegisterServer_func)GetProcAddress(hDLL, "DllRegisterServer");
164 if (pDllRegisterServer)
166 HRESULT hr = pDllRegisterServer();
167 if (FAILED(hr))
168 ERR("Failed to register Quartz. Error was 0x%x)\n", hr);