dlls/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 <stdarg.h>
  20
  21 #define COBJMACROS
  22
  23 #include "windef.h"
  24 #include "winbase.h"
  25 #include "wingdi.h"
  26 #include "winuser.h"
  27 #include "winerror.h"
  28 #include "ole2.h"
  29 #include "rpcproxy.h"
  30
  31 #include "initguid.h"
  32 #include "vfw.h"
  33 #include "avifile_private.h"
  34
  35 #include "wine/debug.h"
  36
  37 WINE_DEFAULT_DEBUG_CHANNEL(avifile);
  38
  39 HMODULE AVIFILE_hModule   = NULL;
  40
  41 static BOOL    AVIFILE_bLocked;
  42 static UINT    AVIFILE_uUseCount;
  43
  44 static HRESULT WINAPI IClassFactory_fnQueryInterface(LPCLASSFACTORY iface,REFIID riid,LPVOID *ppobj);
  45 static ULONG   WINAPI IClassFactory_fnAddRef(LPCLASSFACTORY iface);
  46 static ULONG   WINAPI IClassFactory_fnRelease(LPCLASSFACTORY iface);
  47 static HRESULT WINAPI IClassFactory_fnCreateInstance(LPCLASSFACTORY iface,LPUNKNOWN pOuter,REFIID riid,LPVOID *ppobj);
  48 static HRESULT WINAPI IClassFactory_fnLockServer(LPCLASSFACTORY iface,BOOL dolock);
  49
  50 static const IClassFactoryVtbl iclassfact = {
  51   IClassFactory_fnQueryInterface,
  52   IClassFactory_fnAddRef,
  53   IClassFactory_fnRelease,
  54   IClassFactory_fnCreateInstance,
  55   IClassFactory_fnLockServer
  56 };
  57
  58 typedef struct
  59 {
  60   /* IUnknown fields */
  61   IClassFactory IClassFactory_iface;
  62   DWORD  dwRef;
  63
  64   CLSID  clsid;
  65 } IClassFactoryImpl;
  66
  67 static inline IClassFactoryImpl *impl_from_IClassFactory(IClassFactory *iface)
  68 {
  69   return CONTAINING_RECORD(iface, IClassFactoryImpl, IClassFactory_iface);
  70 }
  71
  72 static HRESULT AVIFILE_CreateClassFactory(const CLSID *pclsid, const IID *riid,
  73                                           LPVOID *ppv)
  74 {
  75   IClassFactoryImpl *pClassFactory = NULL;
  76   HRESULT            hr;
  77
  78   *ppv = NULL;
  79
  80   pClassFactory = HeapAlloc(GetProcessHeap(), 0, sizeof(*pClassFactory));
  81   if (pClassFactory == NULL)
  82     return E_OUTOFMEMORY;
  83
  84   pClassFactory->IClassFactory_iface.lpVtbl = &iclassfact;
  85   pClassFactory->dwRef     = 0;
  86   pClassFactory->clsid     = *pclsid;
  87
  88   hr = IClassFactory_QueryInterface(&pClassFactory->IClassFactory_iface, riid, ppv);
  89   if (FAILED(hr)) {
  90     HeapFree(GetProcessHeap(), 0, pClassFactory);
  91     *ppv = NULL;
  92   }
  93
  94   return hr;
  95 }
  96
  97 static HRESULT WINAPI IClassFactory_fnQueryInterface(LPCLASSFACTORY iface,
  98                                                      REFIID riid,LPVOID *ppobj)
  99 {
 100   TRACE("(%p,%p,%p)\n", iface, riid, ppobj);
 101
 102   if ((IsEqualGUID(&IID_IUnknown, riid)) ||
 103       (IsEqualGUID(&IID_IClassFactory, riid))) {
 104     *ppobj = iface;
 105     IClassFactory_AddRef(iface);
 106     return S_OK;
 107   }
 108
 109   return E_NOINTERFACE;
 110 }
 111
 112 static ULONG WINAPI IClassFactory_fnAddRef(LPCLASSFACTORY iface)
 113 {
 114   IClassFactoryImpl *This = impl_from_IClassFactory(iface);
 115
 116   TRACE("(%p)\n", iface);
 117
 118   return ++(This->dwRef);
 119 }
 120
 121 static ULONG WINAPI IClassFactory_fnRelease(LPCLASSFACTORY iface)
 122 {
 123   IClassFactoryImpl *This = impl_from_IClassFactory(iface);
 124
 125   TRACE("(%p)\n", iface);
 126   if ((--(This->dwRef)) > 0)
 127     return This->dwRef;
 128
 129   HeapFree(GetProcessHeap(), 0, This);
 130
 131   return 0;
 132 }
 133
 134 static HRESULT WINAPI IClassFactory_fnCreateInstance(LPCLASSFACTORY iface,
 135                                                      LPUNKNOWN pOuter,
 136                                                      REFIID riid,LPVOID *ppobj)
 137 {
 138   IClassFactoryImpl *This = impl_from_IClassFactory(iface);
 139
 140   TRACE("(%p,%p,%s,%p)\n", iface, pOuter, debugstr_guid(riid),
 141         ppobj);
 142
 143   if (!ppobj)
 144     return E_INVALIDARG;
 145   *ppobj = NULL;
 146
 147   if (pOuter && !IsEqualGUID(&IID_IUnknown, riid))
 148     return E_INVALIDARG;
 149
 150   if (IsEqualGUID(&CLSID_AVIFile, &This->clsid))
 151     return AVIFILE_CreateAVIFile(pOuter, riid, ppobj);
 152   if (IsEqualGUID(&CLSID_WAVFile, &This->clsid))
 153     return AVIFILE_CreateWAVFile(pOuter, riid, ppobj);
 154
 155   if (pOuter)
 156     return CLASS_E_NOAGGREGATION;
 157
 158   if (IsEqualGUID(&CLSID_ICMStream, &This->clsid))
 159     return AVIFILE_CreateICMStream(riid,ppobj);
 160   if (IsEqualGUID(&CLSID_ACMStream, &This->clsid))
 161     return AVIFILE_CreateACMStream(riid,ppobj);
 162
 163   return E_NOINTERFACE;
 164 }
 165
 166 static HRESULT WINAPI IClassFactory_fnLockServer(LPCLASSFACTORY iface,BOOL dolock)
 167 {
 168   TRACE("(%p,%d)\n",iface,dolock);
 169
 170   AVIFILE_bLocked = dolock;
 171
 172   return S_OK;
 173 }
 174
 175 LPCWSTR AVIFILE_BasenameW(LPCWSTR szPath)
 176 {
 177 #define SLASH(w) ((w) == '/' || (w) == '\\')
 178
 179   LPCWSTR szCur;
 180
 181   for (szCur = szPath + lstrlenW(szPath);
 182        szCur > szPath && !SLASH(*szCur) && *szCur != ':';)
 183     szCur--;
 184
 185   if (szCur == szPath)
 186     return szCur;
 187   else
 188     return szCur + 1;
 189
 190 #undef SLASH
 191 }
 192
 193 /***********************************************************************
 194  *              DllGetClassObject (AVIFIL32.@)
 195  */
 196 HRESULT WINAPI DllGetClassObject(REFCLSID pclsid, REFIID piid, LPVOID *ppv)
 197 {
 198   TRACE("(%s,%s,%p)\n", debugstr_guid(pclsid), debugstr_guid(piid), ppv);
 199
 200   if (pclsid == NULL || piid == NULL || ppv == NULL)
 201     return E_FAIL;
 202
 203   return AVIFILE_CreateClassFactory(pclsid,piid,ppv);
 204 }
 205
 206 /*****************************************************************************
 207  *              DllCanUnloadNow         (AVIFIL32.@)
 208  */
 209 HRESULT WINAPI DllCanUnloadNow(void)
 210 {
 211   return ((AVIFILE_bLocked || AVIFILE_uUseCount) ? S_FALSE : S_OK);
 212 }
 213
 214 /*****************************************************************************
 215  *              DllMain         [AVIFIL32.init]
 216  */
 217 BOOL WINAPI DllMain(HINSTANCE hInstDll, DWORD fdwReason, LPVOID lpvReserved)
 218 {
 219   TRACE("(%p,%d,%p)\n", hInstDll, fdwReason, lpvReserved);
 220
 221   switch (fdwReason) {
 222   case DLL_PROCESS_ATTACH:
 223     DisableThreadLibraryCalls(hInstDll);
 224     AVIFILE_hModule = hInstDll;
 225     break;
 226   };
 227
 228   return TRUE;
 229 }
 230
 231 /***********************************************************************
 232  *              DllRegisterServer (AVIFIL32.@)
 233  */
 234 HRESULT WINAPI DllRegisterServer(void)
 235 {
 236     return __wine_register_resources( AVIFILE_hModule );
 237 }
 238
 239 /***********************************************************************
 240  *              DllUnregisterServer (AVIFIL32.@)
 241  */
 242 HRESULT WINAPI DllUnregisterServer(void)
 243 {
 244     return __wine_unregister_resources( AVIFILE_hModule );
 245 }