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     LONG 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_FilterGraphNoThread, FilterGraphNoThread_create },
  65     { &CLSID_FilterMapper, FilterMapper2_create },
  66     { &CLSID_FilterMapper2, FilterMapper2_create },
  67     { &CLSID_AsyncReader, AsyncReader_create },
  68     { &CLSID_MemoryAllocator, StdMemAllocator_create },
  69     { &CLSID_AviSplitter, AVISplitter_create },
  70     { &CLSID_VideoRenderer, VideoRenderer_create },
  71     { &CLSID_DSoundRender, DSoundRender_create },
  72     { &CLSID_AVIDec, AVIDec_create },
  73     { &CLSID_SystemClock, &QUARTZ_CreateSystemClock },
  74     { &CLSID_ACMWrapper, &ACMWrapper_create },
  75     { &CLSID_WAVEParser, &WAVEParser_create }
  76 };
  77
  78 static HRESULT WINAPI
  79 DSCF_QueryInterface(LPCLASSFACTORY iface,REFIID riid,LPVOID *ppobj)
  80 {
  81     IClassFactoryImpl *This = (IClassFactoryImpl *)iface;
  82
  83     if (IsEqualGUID(riid, &IID_IUnknown)
  84         || IsEqualGUID(riid, &IID_IClassFactory))
  85     {
  86         IClassFactory_AddRef(iface);
  87         *ppobj = This;
  88         return S_OK;
  89     }
  90
  91     WARN("(%p)->(%s,%p),not found\n",This,debugstr_guid(riid),ppobj);
  92     return E_NOINTERFACE;
  93 }
  94
  95 static ULONG WINAPI DSCF_AddRef(LPCLASSFACTORY iface)
  96 {
  97     IClassFactoryImpl *This = (IClassFactoryImpl *)iface;
  98     return InterlockedIncrement(&This->ref);
  99 }
 100
 101 static ULONG WINAPI DSCF_Release(LPCLASSFACTORY iface)
 102 {
 103     IClassFactoryImpl *This = (IClassFactoryImpl *)iface;
 104
 105     ULONG ref = InterlockedDecrement(&This->ref);
 106
 107     if (ref == 0)
 108         HeapFree(GetProcessHeap(), 0, This);
 109
 110     return ref;
 111 }
 112
 113
 114 static HRESULT WINAPI DSCF_CreateInstance(LPCLASSFACTORY iface, LPUNKNOWN pOuter,
 115                                           REFIID riid, LPVOID *ppobj)
 116 {
 117     IClassFactoryImpl *This = (IClassFactoryImpl *)iface;
 118     HRESULT hres;
 119     LPUNKNOWN punk;
 120
 121     TRACE("(%p)->(%p,%s,%p)\n",This,pOuter,debugstr_guid(riid),ppobj);
 122
 123     *ppobj = NULL;
 124     hres = This->pfnCreateInstance(pOuter, (LPVOID *) &punk);
 125     if (SUCCEEDED(hres)) {
 126         hres = IUnknown_QueryInterface(punk, riid, ppobj);
 127         IUnknown_Release(punk);
 128     }
 129     return hres;
 130 }
 131
 132 static HRESULT WINAPI DSCF_LockServer(LPCLASSFACTORY iface,BOOL dolock)
 133 {
 134     IClassFactoryImpl *This = (IClassFactoryImpl *)iface;
 135     FIXME("(%p)->(%d),stub!\n",This,dolock);
 136     return S_OK;
 137 }
 138
 139 static const IClassFactoryVtbl DSCF_Vtbl =
 140 {
 141     DSCF_QueryInterface,
 142     DSCF_AddRef,
 143     DSCF_Release,
 144     DSCF_CreateInstance,
 145     DSCF_LockServer
 146 };
 147
 148 /*******************************************************************************
 149  * DllGetClassObject [QUARTZ.@]
 150  * Retrieves class object from a DLL object
 151  *
 152  * NOTES
 153  *    Docs say returns STDAPI
 154  *
 155  * PARAMS
 156  *    rclsid [I] CLSID for the class object
 157  *    riid   [I] Reference to identifier of interface for class object
 158  *    ppv    [O] Address of variable to receive interface pointer for riid
 159  *
 160  * RETURNS
 161  *    Success: S_OK
 162  *    Failure: CLASS_E_CLASSNOTAVAILABLE, E_OUTOFMEMORY, E_INVALIDARG,
 163  *             E_UNEXPECTED
 164  */
 165 HRESULT WINAPI DllGetClassObject(REFCLSID rclsid, REFIID riid, LPVOID *ppv)
 166 {
 167     unsigned int i;
 168     IClassFactoryImpl *factory;
 169
 170     TRACE("(%s,%s,%p)\n", debugstr_guid(rclsid), debugstr_guid(riid), ppv);
 171
 172     if ( !IsEqualGUID( &IID_IClassFactory, riid )
 173          && ! IsEqualGUID( &IID_IUnknown, riid) )
 174         return E_NOINTERFACE;
 175
 176     for (i=0; i < sizeof(object_creation)/sizeof(object_creation[0]); i++)
 177     {
 178         if (IsEqualGUID(object_creation[i].clsid, rclsid))
 179             break;
 180     }
 181
 182     if (i == sizeof(object_creation)/sizeof(object_creation[0]))
 183     {
 184         FIXME("%s: no class found.\n", debugstr_guid(rclsid));
 185         return CLASS_E_CLASSNOTAVAILABLE;
 186     }
 187
 188     factory = HeapAlloc(GetProcessHeap(), 0, sizeof(*factory));
 189     if (factory == NULL) return E_OUTOFMEMORY;
 190
 191     factory->ITF_IClassFactory.lpVtbl = &DSCF_Vtbl;
 192     factory->ref = 1;
 193
 194     factory->pfnCreateInstance = object_creation[i].pfnCreateInstance;
 195
 196     *ppv = &(factory->ITF_IClassFactory);
 197     return S_OK;
 198 }
 199
 200 /***********************************************************************
 201  *              DllCanUnloadNow (QUARTZ.@)
 202  */
 203 HRESULT WINAPI DllCanUnloadNow()
 204 {
 205     return dll_ref != 0 ? S_FALSE : S_OK;
 206 }
 207
 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
 212 static struct {
 213         const GUID      riid;
 214         const char      *name;
 215 } InterfaceDesc[] =
 216 {
 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 }
 256
 257 LONG WINAPI AmpFactorToDB(LONG ampfactor)
 258 {
 259     FIXME("(%ld) Stub!\n", ampfactor);
 260     return 0;
 261 }
 262
 263 LONG WINAPI DBToAmpFactor(LONG db)
 264 {
 265     FIXME("(%ld) Stub!\n", db);
 266     /* Avoid divide by zero (probably during range computation) in Windows Media Player 6.4 */
 267     if (db < -1000)
 268         return 0;
 269     return 100;
 270 }