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 #define WIN32_NO_STATUS
  20 #define _INC_WINDOWS
  21 #define COM_NO_WINDOWS_H
  22
  23 #include <stdarg.h>
  24
  25 #define COBJMACROS
  26
  27 #include <windef.h>
  28 #include <winbase.h>
  29 #include <wingdi.h>
  30 //#include "winuser.h"
  31 //#include "winerror.h"
  32 #include <ole2.h>
  33 #include <rpcproxy.h>
  34
  35 #include <initguid.h>
  36 #include <vfw.h>
  37 #include "avifile_private.h"
  38
  39 #include <wine/debug.h>
  40
  41 WINE_DEFAULT_DEBUG_CHANNEL(avifile);
  42
  43 HMODULE AVIFILE_hModule   = NULL;
  44
  45 static BOOL    AVIFILE_bLocked;
  46 static UINT    AVIFILE_uUseCount;
  47
  48 static HRESULT WINAPI IClassFactory_fnQueryInterface(LPCLASSFACTORY iface,REFIID riid,LPVOID *ppobj);
  49 static ULONG   WINAPI IClassFactory_fnAddRef(LPCLASSFACTORY iface);
  50 static ULONG   WINAPI IClassFactory_fnRelease(LPCLASSFACTORY iface);
  51 static HRESULT WINAPI IClassFactory_fnCreateInstance(LPCLASSFACTORY iface,LPUNKNOWN pOuter,REFIID riid,LPVOID *ppobj);
  52 static HRESULT WINAPI IClassFactory_fnLockServer(LPCLASSFACTORY iface,BOOL dolock);
  53
  54 static const IClassFactoryVtbl iclassfact = {
  55   IClassFactory_fnQueryInterface,
  56   IClassFactory_fnAddRef,
  57   IClassFactory_fnRelease,
  58   IClassFactory_fnCreateInstance,
  59   IClassFactory_fnLockServer
  60 };
  61
  62 typedef struct
  63 {
  64   /* IUnknown fields */
  65   IClassFactory IClassFactory_iface;
  66   DWORD  dwRef;
  67
  68   CLSID  clsid;
  69 } IClassFactoryImpl;
  70
  71 static inline IClassFactoryImpl *impl_from_IClassFactory(IClassFactory *iface)
  72 {
  73   return CONTAINING_RECORD(iface, IClassFactoryImpl, IClassFactory_iface);
  74 }
  75
  76 static HRESULT AVIFILE_CreateClassFactory(const CLSID *pclsid, const IID *riid,
  77                                           LPVOID *ppv)
  78 {
  79   IClassFactoryImpl *pClassFactory = NULL;
  80   HRESULT            hr;
  81
  82   *ppv = NULL;
  83
  84   pClassFactory = HeapAlloc(GetProcessHeap(), 0, sizeof(*pClassFactory));
  85   if (pClassFactory == NULL)
  86     return E_OUTOFMEMORY;
  87
  88   pClassFactory->IClassFactory_iface.lpVtbl = &iclassfact;
  89   pClassFactory->dwRef     = 0;
  90   pClassFactory->clsid     = *pclsid;
  91
  92   hr = IClassFactory_QueryInterface(&pClassFactory->IClassFactory_iface, riid, ppv);
  93   if (FAILED(hr)) {
  94     HeapFree(GetProcessHeap(), 0, pClassFactory);
  95     *ppv = NULL;
  96   }
  97
  98   return hr;
  99 }
 100
 101 static HRESULT WINAPI IClassFactory_fnQueryInterface(LPCLASSFACTORY iface,
 102                                                      REFIID riid,LPVOID *ppobj)
 103 {
 104   TRACE("(%p,%p,%p)\n", iface, riid, ppobj);
 105
 106   if ((IsEqualGUID(&IID_IUnknown, riid)) ||
 107       (IsEqualGUID(&IID_IClassFactory, riid))) {
 108     *ppobj = iface;
 109     IClassFactory_AddRef(iface);
 110     return S_OK;
 111   }
 112
 113   return E_NOINTERFACE;
 114 }
 115
 116 static ULONG WINAPI IClassFactory_fnAddRef(LPCLASSFACTORY iface)
 117 {
 118   IClassFactoryImpl *This = impl_from_IClassFactory(iface);
 119
 120   TRACE("(%p)\n", iface);
 121
 122   return ++(This->dwRef);
 123 }
 124
 125 static ULONG WINAPI IClassFactory_fnRelease(LPCLASSFACTORY iface)
 126 {
 127   IClassFactoryImpl *This = impl_from_IClassFactory(iface);
 128
 129   TRACE("(%p)\n", iface);
 130   if ((--(This->dwRef)) > 0)
 131     return This->dwRef;
 132
 133   HeapFree(GetProcessHeap(), 0, This);
 134
 135   return 0;
 136 }
 137
 138 static HRESULT WINAPI IClassFactory_fnCreateInstance(LPCLASSFACTORY iface,
 139                                                      LPUNKNOWN pOuter,
 140                                                      REFIID riid,LPVOID *ppobj)
 141 {
 142   IClassFactoryImpl *This = impl_from_IClassFactory(iface);
 143
 144   TRACE("(%p,%p,%s,%p)\n", iface, pOuter, debugstr_guid(riid),
 145         ppobj);
 146
 147   if (!ppobj)
 148     return E_INVALIDARG;
 149   *ppobj = NULL;
 150
 151   if (pOuter && !IsEqualGUID(&IID_IUnknown, riid))
 152     return E_INVALIDARG;
 153
 154   if (IsEqualGUID(&CLSID_AVIFile, &This->clsid))
 155     return AVIFILE_CreateAVIFile(pOuter, riid, ppobj);
 156
 157   if (pOuter)
 158     return CLASS_E_NOAGGREGATION;
 159
 160   if (IsEqualGUID(&CLSID_ICMStream, &This->clsid))
 161     return AVIFILE_CreateICMStream(riid,ppobj);
 162   if (IsEqualGUID(&CLSID_WAVFile, &This->clsid))
 163     return AVIFILE_CreateWAVFile(riid,ppobj);
 164   if (IsEqualGUID(&CLSID_ACMStream, &This->clsid))
 165     return AVIFILE_CreateACMStream(riid,ppobj);
 166
 167   return E_NOINTERFACE;
 168 }
 169
 170 static HRESULT WINAPI IClassFactory_fnLockServer(LPCLASSFACTORY iface,BOOL dolock)
 171 {
 172   TRACE("(%p,%d)\n",iface,dolock);
 173
 174   AVIFILE_bLocked = dolock;
 175
 176   return S_OK;
 177 }
 178
 179 LPCWSTR AVIFILE_BasenameW(LPCWSTR szPath)
 180 {
 181 #define SLASH(w) ((w) == '/' || (w) == '\\')
 182
 183   LPCWSTR szCur;
 184
 185   for (szCur = szPath + lstrlenW(szPath);
 186        szCur > szPath && !SLASH(*szCur) && *szCur != ':';)
 187     szCur--;
 188
 189   if (szCur == szPath)
 190     return szCur;
 191   else
 192     return szCur + 1;
 193
 194 #undef SLASH
 195 }
 196
 197 /***********************************************************************
 198  *              DllGetClassObject (AVIFIL32.@)
 199  */
 200 HRESULT WINAPI DllGetClassObject(REFCLSID pclsid, REFIID piid, LPVOID *ppv)
 201 {
 202   TRACE("(%s,%s,%p)\n", debugstr_guid(pclsid), debugstr_guid(piid), ppv);
 203
 204   if (pclsid == NULL || piid == NULL || ppv == NULL)
 205     return E_FAIL;
 206
 207   return AVIFILE_CreateClassFactory(pclsid,piid,ppv);
 208 }
 209
 210 /*****************************************************************************
 211  *              DllCanUnloadNow         (AVIFIL32.@)
 212  */
 213 HRESULT WINAPI DllCanUnloadNow(void)
 214 {
 215   return ((AVIFILE_bLocked || AVIFILE_uUseCount) ? S_FALSE : S_OK);
 216 }
 217
 218 /*****************************************************************************
 219  *              DllMain         [AVIFIL32.init]
 220  */
 221 BOOL WINAPI DllMain(HINSTANCE hInstDll, DWORD fdwReason, LPVOID lpvReserved)
 222 {
 223   TRACE("(%p,%d,%p)\n", hInstDll, fdwReason, lpvReserved);
 224
 225   switch (fdwReason) {
 226   case DLL_PROCESS_ATTACH:
 227     DisableThreadLibraryCalls(hInstDll);
 228     AVIFILE_hModule = hInstDll;
 229     break;
 230   };
 231
 232   return TRUE;
 233 }
 234
 235 /***********************************************************************
 236  *              DllRegisterServer (AVIFIL32.@)
 237  */
 238 HRESULT WINAPI DllRegisterServer(void)
 239 {
 240     return __wine_register_resources( AVIFILE_hModule );
 241 }
 242
 243 /***********************************************************************
 244  *              DllUnregisterServer (AVIFIL32.@)
 245  */
 246 HRESULT WINAPI DllUnregisterServer(void)
 247 {
 248     return __wine_unregister_resources( AVIFILE_hModule );
 249 }