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., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, 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, FilterMapper_create },
  66     { &CLSID_FilterMapper2, FilterMapper2_create },
  67     { &CLSID_AsyncReader, AsyncReader_create },
  68     { &CLSID_MemoryAllocator, StdMemAllocator_create },
  69     { &CLSID_AviSplitter, AVISplitter_create },
  70     { &CLSID_MPEG1Splitter, MPEGSplitter_create },
  71     { &CLSID_VideoRenderer, VideoRenderer_create },
  72     { &CLSID_DSoundRender, DSoundRender_create },
  73     { &CLSID_AVIDec, AVIDec_create },
  74     { &CLSID_SystemClock, &QUARTZ_CreateSystemClock },
  75     { &CLSID_ACMWrapper, &ACMWrapper_create },
  76     { &CLSID_WAVEParser, &WAVEParser_create }
  77 };
  78
  79 static HRESULT WINAPI
  80 DSCF_QueryInterface(LPCLASSFACTORY iface,REFIID riid,LPVOID *ppobj)
  81 {
  82     IClassFactoryImpl *This = (IClassFactoryImpl *)iface;
  83
  84     if (IsEqualGUID(riid, &IID_IUnknown)
  85         || IsEqualGUID(riid, &IID_IClassFactory))
  86     {
  87         IClassFactory_AddRef(iface);
  88         *ppobj = This;
  89         return S_OK;
  90     }
  91
  92     *ppobj = NULL;
  93     WARN("(%p)->(%s,%p),not found\n",This,debugstr_guid(riid),ppobj);
  94     return E_NOINTERFACE;
  95 }
  96
  97 static ULONG WINAPI DSCF_AddRef(LPCLASSFACTORY iface)
  98 {
  99     IClassFactoryImpl *This = (IClassFactoryImpl *)iface;
 100     return InterlockedIncrement(&This->ref);
 101 }
 102
 103 static ULONG WINAPI DSCF_Release(LPCLASSFACTORY iface)
 104 {
 105     IClassFactoryImpl *This = (IClassFactoryImpl *)iface;
 106
 107     ULONG ref = InterlockedDecrement(&This->ref);
 108
 109     if (ref == 0)
 110         CoTaskMemFree(This);
 111
 112     return ref;
 113 }
 114
 115
 116 static HRESULT WINAPI DSCF_CreateInstance(LPCLASSFACTORY iface, LPUNKNOWN pOuter,
 117                                           REFIID riid, LPVOID *ppobj)
 118 {
 119     IClassFactoryImpl *This = (IClassFactoryImpl *)iface;
 120     HRESULT hres;
 121     LPUNKNOWN punk;
 122
 123     TRACE("(%p)->(%p,%s,%p)\n",This,pOuter,debugstr_guid(riid),ppobj);
 124
 125     *ppobj = NULL;
 126     hres = This->pfnCreateInstance(pOuter, (LPVOID *) &punk);
 127     if (SUCCEEDED(hres)) {
 128         hres = IUnknown_QueryInterface(punk, riid, ppobj);
 129         IUnknown_Release(punk);
 130     }
 131     return hres;
 132 }
 133
 134 static HRESULT WINAPI DSCF_LockServer(LPCLASSFACTORY iface,BOOL dolock)
 135 {
 136     IClassFactoryImpl *This = (IClassFactoryImpl *)iface;
 137     FIXME("(%p)->(%d),stub!\n",This,dolock);
 138     return S_OK;
 139 }
 140
 141 static const IClassFactoryVtbl DSCF_Vtbl =
 142 {
 143     DSCF_QueryInterface,
 144     DSCF_AddRef,
 145     DSCF_Release,
 146     DSCF_CreateInstance,
 147     DSCF_LockServer
 148 };
 149
 150 /*******************************************************************************
 151  * DllGetClassObject [QUARTZ.@]
 152  * Retrieves class object from a DLL object
 153  *
 154  * NOTES
 155  *    Docs say returns STDAPI
 156  *
 157  * PARAMS
 158  *    rclsid [I] CLSID for the class object
 159  *    riid   [I] Reference to identifier of interface for class object
 160  *    ppv    [O] Address of variable to receive interface pointer for riid
 161  *
 162  * RETURNS
 163  *    Success: S_OK
 164  *    Failure: CLASS_E_CLASSNOTAVAILABLE, E_OUTOFMEMORY, E_INVALIDARG,
 165  *             E_UNEXPECTED
 166  */
 167 HRESULT WINAPI DllGetClassObject(REFCLSID rclsid, REFIID riid, LPVOID *ppv)
 168 {
 169     unsigned int i;
 170     IClassFactoryImpl *factory;
 171
 172     TRACE("(%s,%s,%p)\n", debugstr_guid(rclsid), debugstr_guid(riid), ppv);
 173
 174     if ( !IsEqualGUID( &IID_IClassFactory, riid )
 175          && ! IsEqualGUID( &IID_IUnknown, riid) )
 176         return E_NOINTERFACE;
 177
 178     for (i=0; i < sizeof(object_creation)/sizeof(object_creation[0]); i++)
 179     {
 180         if (IsEqualGUID(object_creation[i].clsid, rclsid))
 181             break;
 182     }
 183
 184     if (i == sizeof(object_creation)/sizeof(object_creation[0]))
 185     {
 186         FIXME("%s: no class found.\n", debugstr_guid(rclsid));
 187         return CLASS_E_CLASSNOTAVAILABLE;
 188     }
 189
 190     factory = CoTaskMemAlloc(sizeof(*factory));
 191     if (factory == NULL) return E_OUTOFMEMORY;
 192
 193     factory->ITF_IClassFactory.lpVtbl = &DSCF_Vtbl;
 194     factory->ref = 1;
 195
 196     factory->pfnCreateInstance = object_creation[i].pfnCreateInstance;
 197
 198     *ppv = &(factory->ITF_IClassFactory);
 199     return S_OK;
 200 }
 201
 202 /***********************************************************************
 203  *              DllCanUnloadNow (QUARTZ.@)
 204  */
 205 HRESULT WINAPI DllCanUnloadNow(void)
 206 {
 207     return dll_ref != 0 ? S_FALSE : S_OK;
 208 }
 209
 210
 211 #define OUR_GUID_ENTRY(name, l, w1, w2, b1, b2, b3, b4, b5, b6, b7, b8) \
 212     { { l, w1, w2, { b1, b2,  b3,  b4,  b5,  b6,  b7,  b8 } } , #name },
 213
 214 static const struct {
 215         const GUID      riid;
 216         const char      *name;
 217 } InterfaceDesc[] =
 218 {
 219 #include "uuids.h"
 220     { { 0, 0, 0, {0, 0, 0, 0, 0, 0, 0, 0} }, NULL }
 221 };
 222
 223 /***********************************************************************
 224  *              qzdebugstr_guid (internal)
 225  *
 226  * Gives a text version of DirectShow GUIDs
 227  */
 228 const char * qzdebugstr_guid( const GUID * id )
 229 {
 230     int i;
 231     char * name = NULL;
 232
 233     for (i=0;InterfaceDesc[i].name && !name;i++) {
 234         if (IsEqualGUID(&InterfaceDesc[i].riid, id)) return InterfaceDesc[i].name;
 235     }
 236     return debugstr_guid(id);
 237 }
 238
 239 /***********************************************************************
 240  *              qzdebugstr_State (internal)
 241  *
 242  * Gives a text version of the FILTER_STATE enumeration
 243  */
 244 const char * qzdebugstr_State(FILTER_STATE state)
 245 {
 246     switch (state)
 247     {
 248     case State_Stopped:
 249         return "State_Stopped";
 250     case State_Running:
 251         return "State_Running";
 252     case State_Paused:
 253         return "State_Paused";
 254     default:
 255         return "State_Unknown";
 256     }
 257 }
 258
 259 LONG WINAPI AmpFactorToDB(LONG ampfactor)
 260 {
 261     FIXME("(%d) Stub!\n", ampfactor);
 262     return 0;
 263 }
 264
 265 LONG WINAPI DBToAmpFactor(LONG db)
 266 {
 267     FIXME("(%d) Stub!\n", db);
 268     /* Avoid divide by zero (probably during range computation) in Windows Media Player 6.4 */
 269     if (db < -1000)
 270         return 0;
 271     return 100;
 272 }
 273
 274 /***********************************************************************
 275  *              AMGetErrorTextA (QUARTZ.@)
 276  */
 277 DWORD WINAPI AMGetErrorTextA(HRESULT hr, LPSTR buffer, DWORD maxlen)
 278 {
 279     int len;
 280     static const char format[] = "Error: 0x%x";
 281     char error[MAX_ERROR_TEXT_LEN];
 282
 283     FIXME("(%x,%p,%d) stub\n", hr, buffer, maxlen);
 284
 285     if (!buffer) return 0;
 286     wsprintfA(error, format, hr);
 287     if ((len = lstrlenA(error)) >= maxlen) return 0;
 288     lstrcpyA(buffer, error);
 289     return len;
 290 }
 291
 292 /***********************************************************************
 293  *              AMGetErrorTextW (QUARTZ.@)
 294  */
 295 DWORD WINAPI AMGetErrorTextW(HRESULT hr, LPWSTR buffer, DWORD maxlen)
 296 {
 297     int len;
 298     static const WCHAR format[] = {'E','r','r','o','r',':',' ','0','x','%','l','x',0};
 299     WCHAR error[MAX_ERROR_TEXT_LEN];
 300
 301     FIXME("(%x,%p,%d) stub\n", hr, buffer, maxlen);
 302
 303     if (!buffer) return 0;
 304     wsprintfW(error, format, hr);
 305     if ((len = lstrlenW(error)) >= maxlen) return 0;
 306     lstrcpyW(buffer, error);
 307     return len;
 308 }