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