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