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