reactos/dll/directx/wine/amstream/main.c

   1 /*
   2  *     MultiMedia Streams Base Functions (AMSTREAM.DLL)
   3  *
   4  * Copyright 2004 Christian Costa
   5  *
   6  * This library is free software; you can redistribute it and/or
   7  * modify it under the terms of the GNU Lesser General Public
   8  * License as published by the Free Software Foundation; either
   9  * version 2.1 of the License, or (at your option) any later version.
  10  *
  11  * This library is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14  * Lesser General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU Lesser General Public
  17  * License along with this library; if not, write to the Free Software
  18  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
  19  */
  20
  21 #define WIN32_NO_STATUS
  22 #define WIN32_LEAN_AND_MEAN
  23
  24 //#include <stdarg.h>
  25 //#include <string.h>
  26
  27 #define COBJMACROS
  28
  29 //#include "windef.h"
  30 //#include "winbase.h"
  31 //#include "winuser.h"
  32 //#include "winerror.h"
  33
  34 //#include <ole2.h>
  35 #include <objbase.h>
  36 #include <rpcproxy.h>
  37
  38 #include "amstream_private.h"
  39 #include <amstream.h>
  40
  41 #include <wine/debug.h>
  42
  43 WINE_DEFAULT_DEBUG_CHANNEL(amstream);
  44
  45 static HINSTANCE instance;
  46 static DWORD dll_ref = 0;
  47
  48 /* For the moment, do nothing here. */
  49 BOOL WINAPI DllMain(HINSTANCE hInstDLL, DWORD fdwReason, LPVOID lpv)
  50 {
  51     switch(fdwReason) {
  52         case DLL_PROCESS_ATTACH:
  53             instance = hInstDLL;
  54             DisableThreadLibraryCalls(hInstDLL);
  55             break;
  56     }
  57     return TRUE;
  58 }
  59
  60 /******************************************************************************
  61  * Multimedia Streams ClassFactory
  62  */
  63 typedef struct {
  64     IClassFactory IClassFactory_iface;
  65     LONG ref;
  66     HRESULT (*pfnCreateInstance)(IUnknown *pUnkOuter, LPVOID *ppObj);
  67 } IClassFactoryImpl;
  68
  69 static inline IClassFactoryImpl *impl_from_IClassFactory(IClassFactory *iface)
  70 {
  71     return CONTAINING_RECORD(iface, IClassFactoryImpl, IClassFactory_iface);
  72 }
  73
  74 struct object_creation_info
  75 {
  76     const CLSID *clsid;
  77     HRESULT (*pfnCreateInstance)(IUnknown *pUnkOuter, LPVOID *ppObj);
  78 };
  79
  80 static const struct object_creation_info object_creation[] =
  81 {
  82     { &CLSID_AMMultiMediaStream, AM_create },
  83     { &CLSID_AMDirectDrawStream, AM_create },
  84     { &CLSID_AMAudioData, AMAudioData_create },
  85     { &CLSID_MediaStreamFilter, MediaStreamFilter_create }
  86 };
  87
  88 static HRESULT WINAPI AMCF_QueryInterface(IClassFactory *iface, REFIID riid, void **ppobj)
  89 {
  90     if (IsEqualGUID(riid, &IID_IUnknown)
  91         || IsEqualGUID(riid, &IID_IClassFactory))
  92     {
  93         IClassFactory_AddRef(iface);
  94         *ppobj = iface;
  95         return S_OK;
  96     }
  97
  98     *ppobj = NULL;
  99     WARN("(%p)->(%s,%p), not found\n", iface, debugstr_guid(riid), ppobj);
 100     return E_NOINTERFACE;
 101 }
 102
 103 static ULONG WINAPI AMCF_AddRef(IClassFactory *iface)
 104 {
 105     IClassFactoryImpl *This = impl_from_IClassFactory(iface);
 106     return InterlockedIncrement(&This->ref);
 107 }
 108
 109 static ULONG WINAPI AMCF_Release(IClassFactory *iface)
 110 {
 111     IClassFactoryImpl *This = impl_from_IClassFactory(iface);
 112     ULONG ref = InterlockedDecrement(&This->ref);
 113
 114     if (ref == 0)
 115         HeapFree(GetProcessHeap(), 0, This);
 116
 117     return ref;
 118 }
 119
 120
 121 static HRESULT WINAPI AMCF_CreateInstance(IClassFactory *iface, IUnknown *pOuter,
 122                                           REFIID riid, void **ppobj)
 123 {
 124     IClassFactoryImpl *This = impl_from_IClassFactory(iface);
 125     HRESULT hres;
 126     LPUNKNOWN punk;
 127
 128     TRACE("(%p)->(%p,%s,%p)\n",This,pOuter,debugstr_guid(riid),ppobj);
 129
 130     *ppobj = NULL;
 131     hres = This->pfnCreateInstance(pOuter, (LPVOID *) &punk);
 132     if (SUCCEEDED(hres)) {
 133         hres = IUnknown_QueryInterface(punk, riid, ppobj);
 134         IUnknown_Release(punk);
 135     }
 136     return hres;
 137 }
 138
 139 static HRESULT WINAPI AMCF_LockServer(IClassFactory *iface, BOOL dolock)
 140 {
 141     IClassFactoryImpl *This = impl_from_IClassFactory(iface);
 142     FIXME("(%p)->(%d),stub!\n",This,dolock);
 143     return S_OK;
 144 }
 145
 146 static const IClassFactoryVtbl DSCF_Vtbl =
 147 {
 148     AMCF_QueryInterface,
 149     AMCF_AddRef,
 150     AMCF_Release,
 151     AMCF_CreateInstance,
 152     AMCF_LockServer
 153 };
 154
 155 /*******************************************************************************
 156  * DllGetClassObject [AMSTREAM.@]
 157  * Retrieves class object from a DLL object
 158  *
 159  * NOTES
 160  *    Docs say returns STDAPI
 161  *
 162  * PARAMS
 163  *    rclsid [I] CLSID for the class object
 164  *    riid   [I] Reference to identifier of interface for class object
 165  *    ppv    [O] Address of variable to receive interface pointer for riid
 166  *
 167  * RETURNS
 168  *    Success: S_OK
 169  *    Failure: CLASS_E_CLASSNOTAVAILABLE, E_OUTOFMEMORY, E_INVALIDARG,
 170  *             E_UNEXPECTED
 171  */
 172 HRESULT WINAPI DllGetClassObject(REFCLSID rclsid, REFIID riid, LPVOID *ppv)
 173 {
 174     unsigned int i;
 175     IClassFactoryImpl *factory;
 176
 177     TRACE("(%s,%s,%p)\n", debugstr_guid(rclsid), debugstr_guid(riid), ppv);
 178
 179     if ( !IsEqualGUID( &IID_IClassFactory, riid )
 180          && ! IsEqualGUID( &IID_IUnknown, riid) )
 181         return E_NOINTERFACE;
 182
 183     for (i=0; i < sizeof(object_creation)/sizeof(object_creation[0]); i++)
 184     {
 185         if (IsEqualGUID(object_creation[i].clsid, rclsid))
 186             break;
 187     }
 188
 189     if (i == sizeof(object_creation)/sizeof(object_creation[0]))
 190     {
 191         FIXME("%s: no class found.\n", debugstr_guid(rclsid));
 192         return CLASS_E_CLASSNOTAVAILABLE;
 193     }
 194
 195     factory = HeapAlloc(GetProcessHeap(), 0, sizeof(*factory));
 196     if (factory == NULL) return E_OUTOFMEMORY;
 197
 198     factory->IClassFactory_iface.lpVtbl = &DSCF_Vtbl;
 199     factory->ref = 1;
 200
 201     factory->pfnCreateInstance = object_creation[i].pfnCreateInstance;
 202
 203     *ppv = &factory->IClassFactory_iface;
 204     return S_OK;
 205 }
 206
 207 /***********************************************************************
 208  *              DllCanUnloadNow (AMSTREAM.@)
 209  */
 210 HRESULT WINAPI DllCanUnloadNow(void)
 211 {
 212     return dll_ref != 0 ? S_FALSE : S_OK;
 213 }
 214
 215 /***********************************************************************
 216  *              DllRegisterServer (AMSTREAM.@)
 217  */
 218 HRESULT WINAPI DllRegisterServer(void)
 219 {
 220     return __wine_register_resources( instance );
 221 }
 222
 223 /***********************************************************************
 224  *              DllUnregisterServer (AMSTREAM.@)
 225  */
 226 HRESULT WINAPI DllUnregisterServer(void)
 227 {
 228     return __wine_unregister_resources( instance );
 229 }