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     { &CLSID_ACMWrapper, &ACMWrapper_create },
  74     { &CLSID_WAVEParser, &WAVEParser_create }
  75 };
  76
  77 static HRESULT WINAPI
  78 DSCF_QueryInterface(LPCLASSFACTORY iface,REFIID riid,LPVOID *ppobj)
  79 {
  80     IClassFactoryImpl *This = (IClassFactoryImpl *)iface;
  81
  82     if (IsEqualGUID(riid, &IID_IUnknown)
  83         || IsEqualGUID(riid, &IID_IClassFactory))
  84     {
  85         IClassFactory_AddRef(iface);
  86         *ppobj = This;
  87         return S_OK;
  88     }
  89
  90     WARN("(%p)->(%s,%p),not found\n",This,debugstr_guid(riid),ppobj);
  91     return E_NOINTERFACE;
  92 }
  93
  94 static ULONG WINAPI DSCF_AddRef(LPCLASSFACTORY iface)
  95 {
  96     IClassFactoryImpl *This = (IClassFactoryImpl *)iface;
  97     return InterlockedIncrement(&This->ref);
  98 }
  99
 100 static ULONG WINAPI DSCF_Release(LPCLASSFACTORY iface)
 101 {
 102     IClassFactoryImpl *This = (IClassFactoryImpl *)iface;
 103
 104     ULONG ref = InterlockedDecrement(&This->ref);
 105
 106     if (ref == 0)
 107         HeapFree(GetProcessHeap(), 0, This);
 108
 109     return ref;
 110 }
 111
 112
 113 static HRESULT WINAPI DSCF_CreateInstance(LPCLASSFACTORY iface, LPUNKNOWN pOuter,
 114                                           REFIID riid, LPVOID *ppobj)
 115 {
 116     IClassFactoryImpl *This = (IClassFactoryImpl *)iface;
 117     HRESULT hres;
 118     LPUNKNOWN punk;
 119
 120     TRACE("(%p)->(%p,%s,%p)\n",This,pOuter,debugstr_guid(riid),ppobj);
 121
 122     *ppobj = NULL;
 123     hres = This->pfnCreateInstance(pOuter, (LPVOID *) &punk);
 124     if (SUCCEEDED(hres)) {
 125         hres = IUnknown_QueryInterface(punk, riid, ppobj);
 126         IUnknown_Release(punk);
 127     }
 128     return hres;
 129 }
 130
 131 static HRESULT WINAPI DSCF_LockServer(LPCLASSFACTORY iface,BOOL dolock)
 132 {
 133     IClassFactoryImpl *This = (IClassFactoryImpl *)iface;
 134     FIXME("(%p)->(%d),stub!\n",This,dolock);
 135     return S_OK;
 136 }
 137
 138 static IClassFactoryVtbl DSCF_Vtbl =
 139 {
 140     DSCF_QueryInterface,
 141     DSCF_AddRef,
 142     DSCF_Release,
 143     DSCF_CreateInstance,
 144     DSCF_LockServer
 145 };
 146
 147 /*******************************************************************************
 148  * DllGetClassObject [QUARTZ.@]
 149  * Retrieves class object from a DLL object
 150  *
 151  * NOTES
 152  *    Docs say returns STDAPI
 153  *
 154  * PARAMS
 155  *    rclsid [I] CLSID for the class object
 156  *    riid   [I] Reference to identifier of interface for class object
 157  *    ppv    [O] Address of variable to receive interface pointer for riid
 158  *
 159  * RETURNS
 160  *    Success: S_OK
 161  *    Failure: CLASS_E_CLASSNOTAVAILABLE, E_OUTOFMEMORY, E_INVALIDARG,
 162  *             E_UNEXPECTED
 163  */
 164 DWORD WINAPI QUARTZ_DllGetClassObject(REFCLSID rclsid, REFIID riid, LPVOID *ppv)
 165 {
 166     unsigned int i;
 167     IClassFactoryImpl *factory;
 168
 169     TRACE("(%s,%s,%p)\n", debugstr_guid(rclsid), debugstr_guid(riid), ppv);
 170
 171     if ( !IsEqualGUID( &IID_IClassFactory, riid )
 172          && ! IsEqualGUID( &IID_IUnknown, riid) )
 173         return E_NOINTERFACE;
 174
 175     for (i=0; i < sizeof(object_creation)/sizeof(object_creation[0]); i++)
 176     {
 177         if (IsEqualGUID(object_creation[i].clsid, rclsid))
 178             break;
 179     }
 180
 181     if (i == sizeof(object_creation)/sizeof(object_creation[0]))
 182     {
 183         FIXME("%s: no class found.\n", debugstr_guid(rclsid));
 184         return CLASS_E_CLASSNOTAVAILABLE;
 185     }
 186
 187     factory = HeapAlloc(GetProcessHeap(), 0, sizeof(*factory));
 188     if (factory == NULL) return E_OUTOFMEMORY;
 189
 190     factory->ITF_IClassFactory.lpVtbl = &DSCF_Vtbl;
 191     factory->ref = 1;
 192
 193     factory->pfnCreateInstance = object_creation[i].pfnCreateInstance;
 194
 195     *ppv = &(factory->ITF_IClassFactory);
 196     return S_OK;
 197 }
 198
 199 /***********************************************************************
 200  *              DllCanUnloadNow (QUARTZ.@)
 201  */
 202 HRESULT WINAPI QUARTZ_DllCanUnloadNow()
 203 {
 204     return dll_ref != 0 ? S_FALSE : S_OK;
 205 }
 206
 207
 208 #define OUR_GUID_ENTRY(name, l, w1, w2, b1, b2, b3, b4, b5, b6, b7, b8) \
 209     { { l, w1, w2, { b1, b2,  b3,  b4,  b5,  b6,  b7,  b8 } } , #name },
 210
 211 static struct {
 212         const GUID      riid;
 213         const char      *name;
 214 } InterfaceDesc[] =
 215 {
 216 #include "uuids.h"
 217     { { 0, 0, 0, {0, 0, 0, 0, 0, 0, 0, 0} }, NULL }
 218 };
 219
 220 /***********************************************************************
 221  *              qzdebugstr_guid (internal)
 222  *
 223  * Gives a text version of DirectShow GUIDs
 224  */
 225 const char * qzdebugstr_guid( const GUID * id )
 226 {
 227     int i;
 228     char * name = NULL;
 229
 230     for (i=0;InterfaceDesc[i].name && !name;i++) {
 231         if (IsEqualGUID(&InterfaceDesc[i].riid, id)) return InterfaceDesc[i].name;
 232     }
 233     return debugstr_guid(id);
 234 }
 235
 236 /***********************************************************************
 237  *              qzdebugstr_State (internal)
 238  *
 239  * Gives a text version of the FILTER_STATE enumeration
 240  */
 241 const char * qzdebugstr_State(FILTER_STATE state)
 242 {
 243     switch (state)
 244     {
 245     case State_Stopped:
 246         return "State_Stopped";
 247     case State_Running:
 248         return "State_Running";
 249     case State_Paused:
 250         return "State_Paused";
 251     default:
 252         return "State_Unknown";
 253     }
 254 }
 255
 256 LONG WINAPI AmpFactorToDB(LONG ampfactor)
 257 {
 258     FIXME("(%ld) Stub!\n", ampfactor);
 259     return 0;
 260 }
 261
 262 LONG WINAPI DBToAmpFactor(LONG db)
 263 {
 264     FIXME("(%ld) Stub!\n", db);
 265     /* Avoid divide by zero (probably during range computation) in Windows Media Player 6.4 */
 266     if (db < -1000)
 267         return 0;
 268     return 100;
 269 }