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 };
  67
  68 static HRESULT WINAPI
  69 DSCF_QueryInterface(LPCLASSFACTORY iface,REFIID riid,LPVOID *ppobj)
  70 {
  71     ICOM_THIS(IClassFactoryImpl,iface);
  72
  73     if (IsEqualGUID(riid, &IID_IUnknown)
  74         || IsEqualGUID(riid, &IID_IClassFactory))
  75     {
  76         IClassFactory_AddRef(iface);
  77         *ppobj = This;
  78         return S_OK;
  79     }
  80
  81     WARN("(%p)->(%s,%p),not found\n",This,debugstr_guid(riid),ppobj);
  82     return E_NOINTERFACE;
  83 }
  84
  85 static ULONG WINAPI DSCF_AddRef(LPCLASSFACTORY iface) {
  86     ICOM_THIS(IClassFactoryImpl,iface);
  87     return ++(This->ref);
  88 }
  89
  90 static ULONG WINAPI DSCF_Release(LPCLASSFACTORY iface) {
  91     ICOM_THIS(IClassFactoryImpl,iface);
  92
  93     ULONG ref = --This->ref;
  94
  95     if (ref == 0)
  96         HeapFree(GetProcessHeap(), 0, This);
  97
  98     return ref;
  99 }
 100
 101
 102 static HRESULT WINAPI DSCF_CreateInstance(LPCLASSFACTORY iface, LPUNKNOWN pOuter,
 103                                           REFIID riid, LPVOID *ppobj) {
 104     ICOM_THIS(IClassFactoryImpl,iface);
 105     HRESULT hres;
 106     LPUNKNOWN punk;
 107
 108     TRACE("(%p)->(%p,%s,%p)\n",This,pOuter,debugstr_guid(riid),ppobj);
 109
 110     hres = This->pfnCreateInstance(pOuter, (LPVOID *) &punk);
 111     if (FAILED(hres)) {
 112         *ppobj = NULL;
 113         return hres;
 114     }
 115     hres = IUnknown_QueryInterface(punk, riid, ppobj);
 116     if (FAILED(hres)) {
 117         *ppobj = NULL;
 118         return hres;
 119     }
 120     IUnknown_Release(punk);
 121     return hres;
 122 }
 123
 124 static HRESULT WINAPI DSCF_LockServer(LPCLASSFACTORY iface,BOOL dolock) {
 125     ICOM_THIS(IClassFactoryImpl,iface);
 126     FIXME("(%p)->(%d),stub!\n",This,dolock);
 127     return S_OK;
 128 }
 129
 130 static ICOM_VTABLE(IClassFactory) DSCF_Vtbl =
 131 {
 132     ICOM_MSVTABLE_COMPAT_DummyRTTIVALUE
 133     DSCF_QueryInterface,
 134     DSCF_AddRef,
 135     DSCF_Release,
 136     DSCF_CreateInstance,
 137     DSCF_LockServer
 138 };
 139
 140 /*******************************************************************************
 141  * DllGetClassObject [QUARTZ.@]
 142  * Retrieves class object from a DLL object
 143  *
 144  * NOTES
 145  *    Docs say returns STDAPI
 146  *
 147  * PARAMS
 148  *    rclsid [I] CLSID for the class object
 149  *    riid   [I] Reference to identifier of interface for class object
 150  *    ppv    [O] Address of variable to receive interface pointer for riid
 151  *
 152  * RETURNS
 153  *    Success: S_OK
 154  *    Failure: CLASS_E_CLASSNOTAVAILABLE, E_OUTOFMEMORY, E_INVALIDARG,
 155  *             E_UNEXPECTED
 156  */
 157 DWORD WINAPI QUARTZ_DllGetClassObject(REFCLSID rclsid, REFIID riid, LPVOID *ppv)
 158 {
 159     int i;
 160     IClassFactoryImpl *factory;
 161
 162     TRACE("(%s,%s,%p)\n", debugstr_guid(rclsid), debugstr_guid(riid), ppv);
 163
 164     if ( !IsEqualGUID( &IID_IClassFactory, riid )
 165          && ! IsEqualGUID( &IID_IUnknown, riid) )
 166         return E_NOINTERFACE;
 167
 168     for (i=0; i < sizeof(object_creation)/sizeof(object_creation[0]); i++)
 169     {
 170         if (IsEqualGUID(object_creation[i].clsid, rclsid))
 171             break;
 172     }
 173
 174     if (i == sizeof(object_creation)/sizeof(object_creation[0]))
 175     {
 176         FIXME("%s: no class found.\n", debugstr_guid(rclsid));
 177         return CLASS_E_CLASSNOTAVAILABLE;
 178     }
 179
 180     factory = HeapAlloc(GetProcessHeap(), 0, sizeof(*factory));
 181     if (factory == NULL) return E_OUTOFMEMORY;
 182
 183     factory->ITF_IClassFactory.lpVtbl = &DSCF_Vtbl;
 184     factory->ref = 1;
 185
 186     factory->pfnCreateInstance = object_creation[i].pfnCreateInstance;
 187
 188     *ppv = &(factory->ITF_IClassFactory);
 189     return S_OK;
 190 }
 191
 192 /***********************************************************************
 193  *      DllRegisterServer (QUARTZ.@)
 194  */
 195 HRESULT WINAPI QUARTZ_DllRegisterServer()
 196 {
 197         FIXME("(): stub\n");
 198         return 0;
 199 }
 200
 201 /***********************************************************************
 202  *              DllCanUnloadNow (QUARTZ.@)
 203  */
 204 HRESULT WINAPI QUARTZ_DllCanUnloadNow()
 205 {
 206     return dll_ref != 0 ? S_FALSE : S_OK;
 207 }
 208
 209
 210 static struct {
 211         const GUID      riid;
 212         char    *name;
 213 } InterfaceDesc[] =
 214 {
 215     #define OUR_GUID_ENTRY(name, l, w1, w2, b1, b2, b3, b4, b5, b6, b7, b8) \
 216     { { l, w1, w2, { b1, b2,  b3,  b4,  b5,  b6,  b7,  b8 } } , #name },
 217         #include <uuids.h>
 218         { { 0, 0, 0, {0, 0, 0, 0, 0, 0, 0, 0} }, NULL }
 219 };
 220
 221 /***********************************************************************
 222  *              qzdebugstr_guid (internal)
 223  *
 224  * Gives a text version of DirectShow GUIDs
 225  */
 226 const char * qzdebugstr_guid( const GUID * id )
 227 {
 228     int i;
 229     char * name = NULL;
 230
 231     for (i=0;InterfaceDesc[i].name && !name;i++) {
 232         if (IsEqualGUID(&InterfaceDesc[i].riid, id)) return InterfaceDesc[i].name;
 233     }
 234     return debugstr_guid(id);
 235 }
 236
 237 /***********************************************************************
 238  *              qzdebugstr_State (internal)
 239  *
 240  * Gives a text version of the FILTER_STATE enumeration
 241  */
 242 const char * qzdebugstr_State(FILTER_STATE state)
 243 {
 244     switch (state)
 245     {
 246     case State_Stopped:
 247         return "State_Stopped";
 248     case State_Running:
 249         return "State_Running";
 250     case State_Paused:
 251         return "State_Paused";
 252     default:
 253         return "State_Unknown";
 254     }
 255 }