iphlpapi: Don't allocate gobs of memory when the route table is empty.
[wine] / dlls / qcap / qcap_main.c
1 /*
2  * Qcap implementation, dllentry points
3  *
4  * Copyright (C) 2003 Dominik Strasser
5  * Copyright (C) 2005 Rolf Kalbermatter
6  *
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.
11  *
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.
16  *
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
20  */
21 #include "config.h"
22
23 #include <assert.h>
24 #include <stdio.h>
25 #include <stdarg.h>
26
27 #define COBJMACROS
28 #define NONAMELESSSTRUCT
29 #define NONAMELESSUNION
30
31 #include "windef.h"
32 #include "winbase.h"
33 #include "winerror.h"
34 #include "objbase.h"
35 #include "uuids.h"
36 #include "strmif.h"
37
38 #include "dllsetup.h"
39 #include "qcap_main.h"
40
41 #include "wine/unicode.h"
42 #include "wine/debug.h"
43
44 WINE_DEFAULT_DEBUG_CHANNEL(qcap);
45
46 static LONG objects_ref = 0;
47 static LONG server_locks = 0;
48
49 static const WCHAR wAudioCaptFilter[] =
50 {'A','u','d','i','o',' ','C','a','p','t','u','r','e',' ','F','i','l','t','e','r',0};
51 static const WCHAR wAVICompressor[] =
52 {'A','V','I',' ','C','o','m','p','r','e','s','s','o','r',0};
53 static const WCHAR wVFWCaptFilter[] =
54 {'V','F','W',' ','C','a','p','t','u','r','e',' ','F','i','l','t','e','r',0};
55 static const WCHAR wVFWCaptFilterProp[] =
56 {'V','F','W',' ','C','a','p','t','u','r','e',' ','F','i','l','t','e','r',' ',
57  'P','r','o','p','e','r','t','y',' ','P','a','g','e',0};
58 static const WCHAR wAVIMux[] =
59 {'A','V','I',' ','m','u','x',0};
60 static const WCHAR wAVIMuxPropPage[] =
61 {'A','V','I',' ','m','u','x',' ','P','r','o','p','e','r','t','y',' ','P','a','g','e',0};
62 static const WCHAR wAVIMuxPropPage1[] =
63 {'A','V','I',' ','m','u','x',' ','P','r','o','p','e','r','t','y',' ','P','a','g','e','1',0};
64 static const WCHAR wFileWriter[] =
65 {'F','i','l','e',' ','W','r','i','t','e','r',0};
66 static const WCHAR wCaptGraphBuilder[] =
67 {'C','a','p','t','u','r','e',' ','G','r','a','p','h',' ','B','u','i','l','d','e','r',0};
68 static const WCHAR wCaptGraphBuilder2[] =
69 {'C','a','p','t','u','r','e',' ','G','r','a','p','h',' ','B','u','i','l','d','e','r','2',0};
70 static const WCHAR wInfPinTeeFilter[] =
71 {'I','n','f','i','n','i','t','e',' ','P','i','n',' ','T','e','e',' ','F','i',
72  'l','t','e','r',0};
73 static const WCHAR wSmartTeeFilter[] =
74 {'S','m','a','r','t',' ','T','e','e',' ','F','i','l','t','e','r',0};
75 static const WCHAR wAudioInMixerProp[] =
76 {'A','u','d','i','o','I','n','p','u','t','M','i','x','e','r',' ','P','r','o',
77  'p','e','r','t','y',' ','P','a','g','e',0};
78  
79 static CFactoryTemplate const g_cTemplates[] = {
80 /*
81     {
82         wAudioCaptureFilter, 
83         &CLSID_AudioCaptureFilter,
84         QCAP_createAudioCaptureFilter,
85         NULL
86     },{
87         wAVICompressor, 
88         &CLSID_AVICompressor, 
89         QCAP_createAVICompressor,
90         NULL
91     },*/{
92         wVFWCaptFilter,
93         &CLSID_VfwCapture,
94         QCAP_createVFWCaptureFilter,
95         NULL
96     },/*{
97         wVFWCaptFilterProp,
98         &CLSID_VFWCaptureFilterPropertyPage,
99         QCAP_createVFWCaptureFilterPropertyPage,
100         NULL
101     },{
102         wAVIMux,
103         &CLSID_AVImux,
104         QCAP_createAVImux,
105         NULL
106     },{
107         wAVIMuxPropPage,
108         &CLSID_AVImuxPropertyPage,
109         QCAP_createAVImuxPropertyPage,
110         NULL
111     },{
112         wAVIMuxPropPage1,
113         &CLSID_AVImuxPropertyPage1,
114         QCAP_createAVImuxPropertyPage1,
115         NULL
116     },{
117         wFileWriter,
118         &CLSID_FileWriter,
119         QCAP_createFileWriter,
120         NULL
121     },*/{
122         wCaptGraphBuilder,
123         &CLSID_CaptureGraphBuilder,
124         QCAP_createCaptureGraphBuilder2,
125         NULL
126     },{
127         wCaptGraphBuilder2,
128         &CLSID_CaptureGraphBuilder2,
129         QCAP_createCaptureGraphBuilder2,
130         NULL
131     }/*,{
132         wInfPinTeeFilter, 
133         &CLSID_InfinitePinTeeFilter, 
134         QCAP_createInfinitePinTeeFilter,
135         NULL
136     },{
137         wSmartTeeFilter,
138         &CLSID_SmartTeeFilter,
139         QCAP_createSmartTeeFilter,
140         NULL
141     },{
142         wAudioInMixerProp,
143         &CLSID_AudioInputMixerPropertyPage,
144         QCAP_createAudioInputMixerPropertyPage,
145         NULL
146     }*/
147 };
148
149 static int g_numTemplates = sizeof(g_cTemplates) / sizeof(g_cTemplates[0]);
150
151 /***********************************************************************
152  *    Dll EntryPoint (QCAP.@)
153  */
154 BOOL WINAPI DllMain(HINSTANCE hInstDLL, DWORD fdwReason, LPVOID lpv)
155 {
156     switch (fdwReason)
157     {
158         case DLL_PROCESS_ATTACH:
159             DisableThreadLibraryCalls(hInstDLL);
160             SetupInitializeServers(g_cTemplates, g_numTemplates, TRUE);
161             break;
162         case DLL_PROCESS_DETACH:
163             SetupInitializeServers(g_cTemplates, g_numTemplates, FALSE);
164             break;
165     }
166     return TRUE;
167 }
168
169 /***********************************************************************
170  *    DllRegisterServer (QCAP.@)
171  */
172 HRESULT WINAPI DllRegisterServer(void)
173 {
174     TRACE("()\n");
175
176     return SetupRegisterServers(g_cTemplates, g_numTemplates, TRUE);
177 }
178
179 /***********************************************************************
180  *    DllUnregisterServer (QCAP.@)
181  */
182 HRESULT WINAPI DllUnregisterServer(void)
183 {
184     TRACE("\n");
185
186     return SetupRegisterServers(g_cTemplates, g_numTemplates, FALSE);
187 }
188
189 /***********************************************************************
190  *    DllCanUnloadNow (QCAP.@)
191  */
192 HRESULT WINAPI DllCanUnloadNow(void)
193 {
194     TRACE("\n");
195
196     if (objects_ref == 0 && server_locks == 0)
197         return S_OK;
198     return S_FALSE;     
199 }
200
201 /******************************************************************************
202  * DLL ClassFactory
203  */
204 typedef struct {
205     IClassFactory ITF_IClassFactory;
206
207     LONG ref;
208     LPFNNewCOMObject pfnCreateInstance;
209 } IClassFactoryImpl;
210
211 static HRESULT WINAPI
212 DSCF_QueryInterface(LPCLASSFACTORY iface,REFIID riid,LPVOID *ppobj)
213 {
214     IClassFactoryImpl *This = (IClassFactoryImpl *)iface;
215
216     if (IsEqualGUID(riid, &IID_IUnknown) ||
217         IsEqualGUID(riid, &IID_IClassFactory))
218     {
219         IClassFactory_AddRef(iface);
220         *ppobj = This;
221         return S_OK;
222     }
223
224     WARN("(%p)->(%s,%p), not found\n", This, debugstr_guid(riid), ppobj);
225     return E_NOINTERFACE;
226 }
227
228 static ULONG WINAPI DSCF_AddRef(LPCLASSFACTORY iface)
229 {
230     IClassFactoryImpl *This = (IClassFactoryImpl *)iface;
231     return InterlockedIncrement(&This->ref);
232 }
233
234 static ULONG WINAPI DSCF_Release(LPCLASSFACTORY iface)
235 {
236     IClassFactoryImpl *This = (IClassFactoryImpl *)iface;
237
238     ULONG ref = InterlockedDecrement(&This->ref);
239
240     if (ref == 0)
241         HeapFree(GetProcessHeap(), 0, This);
242
243     return ref;
244 }
245
246 static HRESULT WINAPI DSCF_CreateInstance(LPCLASSFACTORY iface, LPUNKNOWN pOuter,
247                                           REFIID riid, LPVOID *ppobj)
248 {
249     IClassFactoryImpl *This = (IClassFactoryImpl *)iface;
250     HRESULT hres = ERROR_SUCCESS;
251     LPUNKNOWN punk;
252
253     TRACE("(%p)->(%p,%s,%p)\n", This, pOuter, debugstr_guid(riid), ppobj);
254
255     if (!ppobj)
256         return E_POINTER;
257
258     /* Enforce the normal OLE rules regarding interfaces and delegation */
259     if (pOuter && !IsEqualGUID(riid, &IID_IUnknown))
260         return E_NOINTERFACE;
261
262     *ppobj = NULL;
263     punk = This->pfnCreateInstance(pOuter, &hres);
264     if (!punk)
265     {
266         /* No object created, update error if it isn't done already and return */
267         if (!FAILED(hres))
268             hres = E_OUTOFMEMORY;
269     return hres;
270     }
271
272     if (SUCCEEDED(hres))
273     {
274         hres = IUnknown_QueryInterface(punk, riid, ppobj);
275     }
276     /* Releasing the object. If everything was successful, QueryInterface
277        should have incremented the refcount once more, otherwise this will
278        purge the object. */
279     IUnknown_Release(punk);
280     return hres;
281 }
282
283 static HRESULT WINAPI DSCF_LockServer(LPCLASSFACTORY iface, BOOL dolock)
284 {
285     IClassFactoryImpl *This = (IClassFactoryImpl *)iface;
286     TRACE("(%p)->(%d)\n",This, dolock);
287
288     if (dolock)
289         InterlockedIncrement(&server_locks);
290     else
291         InterlockedDecrement(&server_locks);
292     return S_OK;
293 }
294
295 static const IClassFactoryVtbl DSCF_Vtbl =
296 {
297     DSCF_QueryInterface,
298     DSCF_AddRef,
299     DSCF_Release,
300     DSCF_CreateInstance,
301     DSCF_LockServer
302 };
303
304 /***********************************************************************
305  *    DllGetClassObject (QCAP.@)
306  */
307 HRESULT WINAPI DllGetClassObject(REFCLSID rclsid, REFIID riid, LPVOID *ppv)
308 {
309     const CFactoryTemplate *pList = g_cTemplates;
310     IClassFactoryImpl *factory;
311     int i;
312
313     TRACE("(%s,%s,%p)\n", debugstr_guid(rclsid), debugstr_guid(riid), ppv);
314
315     if (!ppv)
316         return E_POINTER;
317
318     *ppv = NULL;
319
320     if (!IsEqualGUID(&IID_IClassFactory, riid) &&
321         !IsEqualGUID(&IID_IUnknown, riid))
322         return E_NOINTERFACE;
323
324     for (i = 0; i < g_numTemplates; i++, pList++)
325     {
326         if (IsEqualGUID(pList->m_ClsID, rclsid))
327             break;
328     }
329
330     if (i == g_numTemplates)
331     {
332         FIXME("%s: no class found.\n", debugstr_guid(rclsid));
333         return CLASS_E_CLASSNOTAVAILABLE;
334     }
335
336     factory = HeapAlloc(GetProcessHeap(), 0, sizeof(IClassFactoryImpl));
337     if (!factory)
338         return E_OUTOFMEMORY;
339
340     factory->ITF_IClassFactory.lpVtbl = &DSCF_Vtbl;
341     factory->ref = 1;
342
343     factory->pfnCreateInstance = pList->m_lpfnNew;
344
345     *ppv = &(factory->ITF_IClassFactory);
346     return S_OK;
347 }
348
349 DWORD ObjectRefCount(BOOL increment)
350 {
351     if (increment)
352         return InterlockedIncrement(&objects_ref);
353     return InterlockedDecrement(&objects_ref);
354 }