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