git.oblomov.eu Git - wine/blob - 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 };
  69
  70 static HRESULT WINAPI
  71 DSCF_QueryInterface(LPCLASSFACTORY iface,REFIID riid,LPVOID *ppobj)
  72 {
  73     ICOM_THIS(IClassFactoryImpl,iface);
  74
  75     if (IsEqualGUID(riid, &IID_IUnknown)
  76         || IsEqualGUID(riid, &IID_IClassFactory))
  77     {
  78         IClassFactory_AddRef(iface);
  79         *ppobj = This;
  80         return S_OK;
  81     }
  82
  83     WARN("(%p)->(%s,%p),not found\n",This,debugstr_guid(riid),ppobj);
  84     return E_NOINTERFACE;
  85 }
  86
  87 static ULONG WINAPI DSCF_AddRef(LPCLASSFACTORY iface) {
  88     ICOM_THIS(IClassFactoryImpl,iface);
  89     return ++(This->ref);
  90 }
  91
  92 static ULONG WINAPI DSCF_Release(LPCLASSFACTORY iface) {
  93     ICOM_THIS(IClassFactoryImpl,iface);
  94
  95     ULONG ref = --This->ref;
  96
  97     if (ref == 0)
  98         HeapFree(GetProcessHeap(), 0, This);
  99
 100     return ref;
 101 }
 102
 103
 104 static HRESULT WINAPI DSCF_CreateInstance(LPCLASSFACTORY iface, LPUNKNOWN pOuter,
 105                                           REFIID riid, LPVOID *ppobj) {
 106     ICOM_THIS(IClassFactoryImpl,iface);
 107     HRESULT hres;
 108     LPUNKNOWN punk;
 109
 110     TRACE("(%p)->(%p,%s,%p)\n",This,pOuter,debugstr_guid(riid),ppobj);
 111
 112     hres = This->pfnCreateInstance(pOuter, (LPVOID *) &punk);
 113     if (FAILED(hres)) {
 114         *ppobj = NULL;
 115         return hres;
 116     }
 117     hres = IUnknown_QueryInterface(punk, riid, ppobj);
 118     if (FAILED(hres)) {
 119         *ppobj = NULL;
 120         return hres;
 121     }
 122     IUnknown_Release(punk);
 123     return hres;
 124 }
 125
 126 static HRESULT WINAPI DSCF_LockServer(LPCLASSFACTORY iface,BOOL dolock) {
 127     ICOM_THIS(IClassFactoryImpl,iface);
 128     FIXME("(%p)->(%d),stub!\n",This,dolock);
 129     return S_OK;
 130 }
 131
 132 static ICOM_VTABLE(IClassFactory) DSCF_Vtbl =
 133 {
 134     ICOM_MSVTABLE_COMPAT_DummyRTTIVALUE
 135     DSCF_QueryInterface,
 136     DSCF_AddRef,
 137     DSCF_Release,
 138     DSCF_CreateInstance,
 139     DSCF_LockServer
 140 };
 141
 142 /*******************************************************************************
 143  * DllGetClassObject [QUARTZ.@]
 144  * Retrieves class object from a DLL object
 145  *
 146  * NOTES
 147  *    Docs say returns STDAPI
 148  *
 149  * PARAMS
 150  *    rclsid [I] CLSID for the class object
 151  *    riid   [I] Reference to identifier of interface for class object
 152  *    ppv    [O] Address of variable to receive interface pointer for riid
 153  *
 154  * RETURNS
 155  *    Success: S_OK
 156  *    Failure: CLASS_E_CLASSNOTAVAILABLE, E_OUTOFMEMORY, E_INVALIDARG,
 157  *             E_UNEXPECTED
 158  */
 159 DWORD WINAPI QUARTZ_DllGetClassObject(REFCLSID rclsid, REFIID riid, LPVOID *ppv)
 160 {
 161     int i;
 162     IClassFactoryImpl *factory;
 163
 164     TRACE("(%s,%s,%p)\n", debugstr_guid(rclsid), debugstr_guid(riid), ppv);
 165
 166     if ( !IsEqualGUID( &IID_IClassFactory, riid )
 167          && ! IsEqualGUID( &IID_IUnknown, riid) )
 168         return E_NOINTERFACE;
 169
 170     for (i=0; i < sizeof(object_creation)/sizeof(object_creation[0]); i++)
 171     {
 172         if (IsEqualGUID(object_creation[i].clsid, rclsid))
 173             break;
 174     }
 175
 176     if (i == sizeof(object_creation)/sizeof(object_creation[0]))
 177     {
 178         FIXME("%s: no class found.\n", debugstr_guid(rclsid));
 179         return CLASS_E_CLASSNOTAVAILABLE;
 180     }
 181
 182     factory = HeapAlloc(GetProcessHeap(), 0, sizeof(*factory));
 183     if (factory == NULL) return E_OUTOFMEMORY;
 184
 185     factory->ITF_IClassFactory.lpVtbl = &DSCF_Vtbl;
 186     factory->ref = 1;
 187
 188     factory->pfnCreateInstance = object_creation[i].pfnCreateInstance;
 189
 190     *ppv = &(factory->ITF_IClassFactory);
 191     return S_OK;
 192 }
 193
 194 /***********************************************************************
 195  *              DllCanUnloadNow (QUARTZ.@)
 196  */
 197 HRESULT WINAPI QUARTZ_DllCanUnloadNow()
 198 {
 199     return dll_ref != 0 ? S_FALSE : S_OK;
 200 }
 201
 202
 203 static struct {
 204         const GUID      riid;
 205         const char      *name;
 206 } InterfaceDesc[] =
 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         #include <uuids.h>
 211         { { 0, 0, 0, {0, 0, 0, 0, 0, 0, 0, 0} }, NULL }
 212 };
 213
 214 /***********************************************************************
 215  *              qzdebugstr_guid (internal)
 216  *
 217  * Gives a text version of DirectShow GUIDs
 218  */
 219 const char * qzdebugstr_guid( const GUID * id )
 220 {
 221     int i;
 222     char * name = NULL;
 223
 224     for (i=0;InterfaceDesc[i].name && !name;i++) {
 225         if (IsEqualGUID(&InterfaceDesc[i].riid, id)) return InterfaceDesc[i].name;
 226     }
 227     return debugstr_guid(id);
 228 }
 229
 230 /***********************************************************************
 231  *              qzdebugstr_State (internal)
 232  *
 233  * Gives a text version of the FILTER_STATE enumeration
 234  */
 235 const char * qzdebugstr_State(FILTER_STATE state)
 236 {
 237     switch (state)
 238     {
 239     case State_Stopped:
 240         return "State_Stopped";
 241     case State_Running:
 242         return "State_Running";
 243     case State_Paused:
 244         return "State_Paused";
 245     default:
 246         return "State_Unknown";
 247     }
 248 }