dll/win32/avifil32/factory.c

   1 /*
   2  * Copyright 2002 Michael Günnewig
   3  *
   4  * This library is free software; you can redistribute it and/or
   5  * modify it under the terms of the GNU Lesser General Public
   6  * License as published by the Free Software Foundation; either
   7  * version 2.1 of the License, or (at your option) any later version.
   8  *
   9  * This library is distributed in the hope that it will be useful,
  10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  12  * Lesser General Public License for more details.
  13  *
  14  * You should have received a copy of the GNU Lesser General Public
  15  * License along with this library; if not, write to the Free Software
  16  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
  17  */
  18
  19 #include "avifile_private.h"
  20
  21 #include <rpcproxy.h>
  22
  23 HMODULE AVIFILE_hModule   = NULL;
  24
  25 static BOOL    AVIFILE_bLocked;
  26 static UINT    AVIFILE_uUseCount;
  27
  28 static HRESULT WINAPI IClassFactory_fnQueryInterface(LPCLASSFACTORY iface,REFIID riid,LPVOID *ppobj);
  29 static ULONG   WINAPI IClassFactory_fnAddRef(LPCLASSFACTORY iface);
  30 static ULONG   WINAPI IClassFactory_fnRelease(LPCLASSFACTORY iface);
  31 static HRESULT WINAPI IClassFactory_fnCreateInstance(LPCLASSFACTORY iface,LPUNKNOWN pOuter,REFIID riid,LPVOID *ppobj);
  32 static HRESULT WINAPI IClassFactory_fnLockServer(LPCLASSFACTORY iface,BOOL dolock);
  33
  34 static const IClassFactoryVtbl iclassfact = {
  35   IClassFactory_fnQueryInterface,
  36   IClassFactory_fnAddRef,
  37   IClassFactory_fnRelease,
  38   IClassFactory_fnCreateInstance,
  39   IClassFactory_fnLockServer
  40 };
  41
  42 typedef struct
  43 {
  44   /* IUnknown fields */
  45   IClassFactory IClassFactory_iface;
  46   DWORD  dwRef;
  47
  48   CLSID  clsid;
  49 } IClassFactoryImpl;
  50
  51 static inline IClassFactoryImpl *impl_from_IClassFactory(IClassFactory *iface)
  52 {
  53   return CONTAINING_RECORD(iface, IClassFactoryImpl, IClassFactory_iface);
  54 }
  55
  56 static HRESULT AVIFILE_CreateClassFactory(const CLSID *pclsid, const IID *riid,
  57                                           LPVOID *ppv)
  58 {
  59   IClassFactoryImpl *pClassFactory = NULL;
  60   HRESULT            hr;
  61
  62   *ppv = NULL;
  63
  64   pClassFactory = HeapAlloc(GetProcessHeap(), 0, sizeof(*pClassFactory));
  65   if (pClassFactory == NULL)
  66     return E_OUTOFMEMORY;
  67
  68   pClassFactory->IClassFactory_iface.lpVtbl = &iclassfact;
  69   pClassFactory->dwRef     = 0;
  70   pClassFactory->clsid     = *pclsid;
  71
  72   hr = IClassFactory_QueryInterface(&pClassFactory->IClassFactory_iface, riid, ppv);
  73   if (FAILED(hr)) {
  74     HeapFree(GetProcessHeap(), 0, pClassFactory);
  75     *ppv = NULL;
  76   }
  77
  78   return hr;
  79 }
  80
  81 static HRESULT WINAPI IClassFactory_fnQueryInterface(LPCLASSFACTORY iface,
  82                                                      REFIID riid,LPVOID *ppobj)
  83 {
  84   TRACE("(%p,%p,%p)\n", iface, riid, ppobj);
  85
  86   if ((IsEqualGUID(&IID_IUnknown, riid)) ||
  87       (IsEqualGUID(&IID_IClassFactory, riid))) {
  88     *ppobj = iface;
  89     IClassFactory_AddRef(iface);
  90     return S_OK;
  91   }
  92
  93   return E_NOINTERFACE;
  94 }
  95
  96 static ULONG WINAPI IClassFactory_fnAddRef(LPCLASSFACTORY iface)
  97 {
  98   IClassFactoryImpl *This = impl_from_IClassFactory(iface);
  99
 100   TRACE("(%p)\n", iface);
 101
 102   return ++(This->dwRef);
 103 }
 104
 105 static ULONG WINAPI IClassFactory_fnRelease(LPCLASSFACTORY iface)
 106 {
 107   IClassFactoryImpl *This = impl_from_IClassFactory(iface);
 108
 109   TRACE("(%p)\n", iface);
 110   if ((--(This->dwRef)) > 0)
 111     return This->dwRef;
 112
 113   HeapFree(GetProcessHeap(), 0, This);
 114
 115   return 0;
 116 }
 117
 118 static HRESULT WINAPI IClassFactory_fnCreateInstance(LPCLASSFACTORY iface,
 119                                                      LPUNKNOWN pOuter,
 120                                                      REFIID riid,LPVOID *ppobj)
 121 {
 122   IClassFactoryImpl *This = impl_from_IClassFactory(iface);
 123
 124   TRACE("(%p,%p,%s,%p)\n", iface, pOuter, debugstr_guid(riid),
 125         ppobj);
 126
 127   if (!ppobj)
 128     return E_INVALIDARG;
 129   *ppobj = NULL;
 130
 131   if (pOuter && !IsEqualGUID(&IID_IUnknown, riid))
 132     return E_INVALIDARG;
 133
 134   if (IsEqualGUID(&CLSID_AVIFile, &This->clsid))
 135     return AVIFILE_CreateAVIFile(pOuter, riid, ppobj);
 136   if (IsEqualGUID(&CLSID_WAVFile, &This->clsid))
 137     return AVIFILE_CreateWAVFile(pOuter, riid, ppobj);
 138
 139   if (pOuter)
 140     return CLASS_E_NOAGGREGATION;
 141
 142   if (IsEqualGUID(&CLSID_ICMStream, &This->clsid))
 143     return AVIFILE_CreateICMStream(riid,ppobj);
 144   if (IsEqualGUID(&CLSID_ACMStream, &This->clsid))
 145     return AVIFILE_CreateACMStream(riid,ppobj);
 146
 147   return E_NOINTERFACE;
 148 }
 149
 150 static HRESULT WINAPI IClassFactory_fnLockServer(LPCLASSFACTORY iface,BOOL dolock)
 151 {
 152   TRACE("(%p,%d)\n",iface,dolock);
 153
 154   AVIFILE_bLocked = dolock;
 155
 156   return S_OK;
 157 }
 158
 159 LPCWSTR AVIFILE_BasenameW(LPCWSTR szPath)
 160 {
 161 #define SLASH(w) ((w) == '/' || (w) == '\\')
 162
 163   LPCWSTR szCur;
 164
 165   for (szCur = szPath + lstrlenW(szPath);
 166        szCur > szPath && !SLASH(*szCur) && *szCur != ':';)
 167     szCur--;
 168
 169   if (szCur == szPath)
 170     return szCur;
 171   else
 172     return szCur + 1;
 173
 174 #undef SLASH
 175 }
 176
 177 /***********************************************************************
 178  *              DllGetClassObject (AVIFIL32.@)
 179  */
 180 HRESULT WINAPI DllGetClassObject(REFCLSID pclsid, REFIID piid, LPVOID *ppv)
 181 {
 182   TRACE("(%s,%s,%p)\n", debugstr_guid(pclsid), debugstr_guid(piid), ppv);
 183
 184   if (pclsid == NULL || piid == NULL || ppv == NULL)
 185     return E_FAIL;
 186
 187   return AVIFILE_CreateClassFactory(pclsid,piid,ppv);
 188 }
 189
 190 /*****************************************************************************
 191  *              DllCanUnloadNow         (AVIFIL32.@)
 192  */
 193 HRESULT WINAPI DllCanUnloadNow(void)
 194 {
 195   return ((AVIFILE_bLocked || AVIFILE_uUseCount) ? S_FALSE : S_OK);
 196 }
 197
 198 /*****************************************************************************
 199  *              DllMain         [AVIFIL32.init]
 200  */
 201 BOOL WINAPI DllMain(HINSTANCE hInstDll, DWORD fdwReason, LPVOID lpvReserved)
 202 {
 203   TRACE("(%p,%d,%p)\n", hInstDll, fdwReason, lpvReserved);
 204
 205   switch (fdwReason) {
 206   case DLL_PROCESS_ATTACH:
 207     DisableThreadLibraryCalls(hInstDll);
 208     AVIFILE_hModule = hInstDll;
 209     break;
 210   };
 211
 212   return TRUE;
 213 }
 214
 215 /***********************************************************************
 216  *              DllRegisterServer (AVIFIL32.@)
 217  */
 218 HRESULT WINAPI DllRegisterServer(void)
 219 {
 220     return __wine_register_resources( AVIFILE_hModule );
 221 }
 222
 223 /***********************************************************************
 224  *              DllUnregisterServer (AVIFIL32.@)
 225  */
 226 HRESULT WINAPI DllUnregisterServer(void)
 227 {
 228     return __wine_unregister_resources( AVIFILE_hModule );
 229 }