dlls/quartz/main.c

   1 /*              DirectShow Base Functions (QUARTZ.DLL)
   2  *
   3  * Copyright 2002 Lionel Ulmer
   4  *
   5  * This file contains the (internal) driver registration functions,
   6  * driver enumeration APIs and DirectDraw creation functions.
   7  *
   8  * This library is free software; you can redistribute it and/or
   9  * modify it under the terms of the GNU Lesser General Public
  10  * License as published by the Free Software Foundation; either
  11  * version 2.1 of the License, or (at your option) any later version.
  12  *
  13  * This library is distributed in the hope that it will be useful,
  14  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  15  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  16  * Lesser General Public License for more details.
  17  *
  18  * You should have received a copy of the GNU Lesser General Public
  19  * License along with this library; if not, write to the Free Software
  20  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  21  */
  22
  23 #include "config.h"
  24 #include "wine/debug.h"
  25
  26 #include "quartz_private.h"
  27
  28 WINE_DEFAULT_DEBUG_CHANNEL(quartz);
  29
  30 static DWORD dll_ref = 0;
  31
  32 /* For the moment, do nothing here. */
  33 BOOL WINAPI DllMain(HINSTANCE hInstDLL, DWORD fdwReason, LPVOID lpv)
  34 {
  35     switch(fdwReason) {
  36         case DLL_PROCESS_ATTACH:
  37             DisableThreadLibraryCalls(hInstDLL);
  38             break;
  39         case DLL_PROCESS_DETACH:
  40             break;
  41     }
  42     return TRUE;
  43 }
  44
  45 /******************************************************************************
  46  * DirectShow ClassFactory
  47  */
  48 typedef struct {
  49     IClassFactory ITF_IClassFactory;
  50
  51     DWORD ref;
  52     HRESULT (*pfnCreateInstance)(IUnknown *pUnkOuter, LPVOID *ppObj);
  53 } IClassFactoryImpl;
  54
  55 struct object_creation_info
  56 {
  57     const CLSID *clsid;
  58     HRESULT (*pfnCreateInstance)(IUnknown *pUnkOuter, LPVOID *ppObj);
  59 };
  60
  61 static const struct object_creation_info object_creation[] =
  62 {
  63     { &CLSID_FilterGraph, FILTERGRAPH_create },
  64     { &CLSID_FilterMapper, FilterMapper2_create },
  65     { &CLSID_FilterMapper2, FilterMapper2_create },
  66     { &CLSID_AsyncReader, AsyncReader_create },
  67     { &CLSID_MemoryAllocator, StdMemAllocator_create },
  68     { &CLSID_AviSplitter, AVISplitter_create },
  69
  70     { &CLSID_SystemClock, &QUARTZ_CreateSystemClock }
  71 };
  72
  73 static HRESULT WINAPI
  74 DSCF_QueryInterface(LPCLASSFACTORY iface,REFIID riid,LPVOID *ppobj)
  75 {
  76     ICOM_THIS(IClassFactoryImpl,iface);
  77
  78     if (IsEqualGUID(riid, &IID_IUnknown)
  79         || IsEqualGUID(riid, &IID_IClassFactory))
  80     {
  81         IClassFactory_AddRef(iface);
  82         *ppobj = This;
  83         return S_OK;
  84     }
  85
  86     WARN("(%p)->(%s,%p),not found\n",This,debugstr_guid(riid),ppobj);
  87     return E_NOINTERFACE;
  88 }
  89
  90 static ULONG WINAPI DSCF_AddRef(LPCLASSFACTORY iface) {
  91     ICOM_THIS(IClassFactoryImpl,iface);
  92     return ++(This->ref);
  93 }
  94
  95 static ULONG WINAPI DSCF_Release(LPCLASSFACTORY iface) {
  96     ICOM_THIS(IClassFactoryImpl,iface);
  97
  98     ULONG ref = --This->ref;
  99
 100     if (ref == 0)
 101         HeapFree(GetProcessHeap(), 0, This);
 102
 103     return ref;
 104 }
 105
 106
 107 static HRESULT WINAPI DSCF_CreateInstance(LPCLASSFACTORY iface, LPUNKNOWN pOuter,
 108                                           REFIID riid, LPVOID *ppobj) {
 109     ICOM_THIS(IClassFactoryImpl,iface);
 110     HRESULT hres;
 111     LPUNKNOWN punk;
 112
 113     TRACE("(%p)->(%p,%s,%p)\n",This,pOuter,debugstr_guid(riid),ppobj);
 114
 115     hres = This->pfnCreateInstance(pOuter, (LPVOID *) &punk);
 116     if (FAILED(hres)) {
 117         *ppobj = NULL;
 118         return hres;
 119     }
 120     hres = IUnknown_QueryInterface(punk, riid, ppobj);
 121     if (FAILED(hres)) {
 122         *ppobj = NULL;
 123         return hres;
 124     }
 125     IUnknown_Release(punk);
 126     return hres;
 127 }
 128
 129 static HRESULT WINAPI DSCF_LockServer(LPCLASSFACTORY iface,BOOL dolock) {
 130     ICOM_THIS(IClassFactoryImpl,iface);
 131     FIXME("(%p)->(%d),stub!\n",This,dolock);
 132     return S_OK;
 133 }
 134
 135 static IClassFactoryVtbl DSCF_Vtbl =
 136 {
 137     DSCF_QueryInterface,
 138     DSCF_AddRef,
 139     DSCF_Release,
 140     DSCF_CreateInstance,
 141     DSCF_LockServer
 142 };
 143
 144 /*******************************************************************************
 145  * DllGetClassObject [QUARTZ.@]
 146  * Retrieves class object from a DLL object
 147  *
 148  * NOTES
 149  *    Docs say returns STDAPI
 150  *
 151  * PARAMS
 152  *    rclsid [I] CLSID for the class object
 153  *    riid   [I] Reference to identifier of interface for class object
 154  *    ppv    [O] Address of variable to receive interface pointer for riid
 155  *
 156  * RETURNS
 157  *    Success: S_OK
 158  *    Failure: CLASS_E_CLASSNOTAVAILABLE, E_OUTOFMEMORY, E_INVALIDARG,
 159  *             E_UNEXPECTED
 160  */
 161 DWORD WINAPI QUARTZ_DllGetClassObject(REFCLSID rclsid, REFIID riid, LPVOID *ppv)
 162 {
 163     int i;
 164     IClassFactoryImpl *factory;
 165
 166     TRACE("(%s,%s,%p)\n", debugstr_guid(rclsid), debugstr_guid(riid), ppv);
 167
 168     if ( !IsEqualGUID( &IID_IClassFactory, riid )
 169          && ! IsEqualGUID( &IID_IUnknown, riid) )
 170         return E_NOINTERFACE;
 171
 172     for (i=0; i < sizeof(object_creation)/sizeof(object_creation[0]); i++)
 173     {
 174         if (IsEqualGUID(object_creation[i].clsid, rclsid))
 175             break;
 176     }
 177
 178     if (i == sizeof(object_creation)/sizeof(object_creation[0]))
 179     {
 180         FIXME("%s: no class found.\n", debugstr_guid(rclsid));
 181         return CLASS_E_CLASSNOTAVAILABLE;
 182     }
 183
 184     factory = HeapAlloc(GetProcessHeap(), 0, sizeof(*factory));
 185     if (factory == NULL) return E_OUTOFMEMORY;
 186
 187     factory->ITF_IClassFactory.lpVtbl = &DSCF_Vtbl;
 188     factory->ref = 1;
 189
 190     factory->pfnCreateInstance = object_creation[i].pfnCreateInstance;
 191
 192     *ppv = &(factory->ITF_IClassFactory);
 193     return S_OK;
 194 }
 195
 196 /***********************************************************************
 197  *              DllCanUnloadNow (QUARTZ.@)
 198  */
 199 HRESULT WINAPI QUARTZ_DllCanUnloadNow()
 200 {
 201     return dll_ref != 0 ? S_FALSE : S_OK;
 202 }
 203
 204
 205 static struct {
 206         const GUID      riid;
 207         const char      *name;
 208 } InterfaceDesc[] =
 209 {
 210     #define OUR_GUID_ENTRY(name, l, w1, w2, b1, b2, b3, b4, b5, b6, b7, b8) \
 211     { { l, w1, w2, { b1, b2,  b3,  b4,  b5,  b6,  b7,  b8 } } , #name },
 212         #include "uuids.h"
 213         { { 0, 0, 0, {0, 0, 0, 0, 0, 0, 0, 0} }, NULL }
 214 };
 215
 216 /***********************************************************************
 217  *              qzdebugstr_guid (internal)
 218  *
 219  * Gives a text version of DirectShow GUIDs
 220  */
 221 const char * qzdebugstr_guid( const GUID * id )
 222 {
 223     int i;
 224     char * name = NULL;
 225
 226     for (i=0;InterfaceDesc[i].name && !name;i++) {
 227         if (IsEqualGUID(&InterfaceDesc[i].riid, id)) return InterfaceDesc[i].name;
 228     }
 229     return debugstr_guid(id);
 230 }
 231
 232 /***********************************************************************
 233  *              qzdebugstr_State (internal)
 234  *
 235  * Gives a text version of the FILTER_STATE enumeration
 236  */
 237 const char * qzdebugstr_State(FILTER_STATE state)
 238 {
 239     switch (state)
 240     {
 241     case State_Stopped:
 242         return "State_Stopped";
 243     case State_Running:
 244         return "State_Running";
 245     case State_Paused:
 246         return "State_Paused";
 247     default:
 248         return "State_Unknown";
 249     }
 250 }