Wine Cross Reference
wine/dlls/dinput8/dinput8_main.c

   /* DirectInput 8
    *
    * Copyright 2002 TransGaming Technologies Inc.
    * Copyright 2006 Roderick Colenbrander
    *
    * This library is free software; you can redistribute it and/or
    * modify it under the terms of the GNU Lesser General Public
    * License as published by the Free Software Foundation; either
    * version 2.1 of the License, or (at your option) any later version.
   *
   * This library is distributed in the hope that it will be useful,
   * but WITHOUT ANY WARRANTY; without even the implied warranty of
   * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
   * Lesser General Public License for more details.
   *
   * You should have received a copy of the GNU Lesser General Public
   * License along with this library; if not, write to the Free Software
   * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
   */
  
  #include "config.h"
  #include <assert.h>
  #include <stdarg.h>
  #include <string.h>
  
  #define COBJMACROS
  
  #include "wine/debug.h"
  #include "windef.h"
  #include "winbase.h"
  #include "winerror.h"
  #include "objbase.h"
  #include "rpcproxy.h"
  #include "dinput.h"
  
  WINE_DEFAULT_DEBUG_CHANNEL(dinput);
  
  static HINSTANCE instance;
  static LONG dll_count;
  
  /*
   * Dll lifetime tracking declaration
   */
  static void LockModule(void)
  {
      InterlockedIncrement(&dll_count);
  }
  
  static void UnlockModule(void)
  {
      InterlockedDecrement(&dll_count);
  }
  
  /******************************************************************************
   *      DirectInput8Create (DINPUT8.@)
   */
  HRESULT WINAPI DECLSPEC_HOTPATCH DirectInput8Create(HINSTANCE hinst, DWORD dwVersion, REFIID riid, LPVOID *ppDI, LPUNKNOWN punkOuter) {
      HRESULT hr, hrCo;
  
      TRACE("hInst (%p), dwVersion: %d, riid (%s), punkOuter (%p))\n", hinst, dwVersion, debugstr_guid(riid), punkOuter);
  
      /* The specified version needs to be dinput8 (0x800) or higher */
      if(dwVersion < 0x800)
          return DIERR_OLDDIRECTINPUTVERSION;
  
      if( !(IsEqualGUID(&IID_IDirectInput8A, riid) || IsEqualGUID(&IID_IDirectInput8W, riid) || IsEqualGUID(&IID_IUnknown, riid)) )
          return DIERR_INVALIDPARAM;
  
      hrCo = CoInitialize(NULL);
      
      hr = CoCreateInstance( &CLSID_DirectInput8, punkOuter, CLSCTX_INPROC_SERVER, riid, ppDI);
      if(FAILED(hr)) {
          ERR("CoCreateInstance failed with hr = %d\n", hr);
          return DIERR_INVALIDPARAM;
      }
  
      /*  ensure balance of calls */
      if(hrCo == S_OK || hrCo == S_FALSE)
          CoUninitialize();
  
      /* When aggregation is used (punkOuter!=NULL) the application needs to manually call Initialize. */
      if(punkOuter == NULL && IsEqualGUID(&IID_IDirectInput8A, riid)) {
          LPDIRECTINPUTA DI = *ppDI;
          IDirectInput8_Initialize(DI, hinst, dwVersion);
      }
  
      if(punkOuter == NULL && IsEqualGUID(&IID_IDirectInput8W, riid)) {
          LPDIRECTINPUTW DI = *ppDI;
          IDirectInput8_Initialize(DI, hinst, dwVersion);
      }
  
      return S_OK;
  }
  
  /*******************************************************************************
   * DirectInput8 ClassFactory
   */
  typedef struct
  {
     /* IUnknown fields */
     IClassFactory IClassFactory_iface;
 } IClassFactoryImpl;
 
 static inline IClassFactoryImpl *impl_from_IClassFactory(IClassFactory *iface)
 {
     return CONTAINING_RECORD(iface, IClassFactoryImpl, IClassFactory_iface);
 }
 
 static HRESULT WINAPI DI8CF_QueryInterface(LPCLASSFACTORY iface,REFIID riid,LPVOID *ppobj) {
     IClassFactoryImpl *This = impl_from_IClassFactory(iface);
     FIXME("%p %s %p\n",This,debugstr_guid(riid),ppobj);
     return E_NOINTERFACE;
 }
 
 static ULONG WINAPI DI8CF_AddRef(LPCLASSFACTORY iface) {
     LockModule();
     return 2;
 }
 
 static ULONG WINAPI DI8CF_Release(LPCLASSFACTORY iface) {
     UnlockModule();
     return 1;
 }
 
 static HRESULT WINAPI DI8CF_CreateInstance(LPCLASSFACTORY iface,LPUNKNOWN pOuter,REFIID riid,LPVOID *ppobj) {
     IClassFactoryImpl *This = impl_from_IClassFactory(iface);
 
     TRACE("(%p)->(%p,%s,%p)\n",This,pOuter,debugstr_guid(riid),ppobj);
     if( IsEqualGUID( &IID_IDirectInput8A, riid ) || IsEqualGUID( &IID_IDirectInput8W, riid ) || IsEqualGUID( &IID_IUnknown, riid )) {
         return DirectInputCreateEx(0, DIRECTINPUT_VERSION, riid, ppobj, pOuter);
     }
 
     ERR("(%p,%p,%s,%p) Interface not found!\n",This,pOuter,debugstr_guid(riid),ppobj);    
     return E_NOINTERFACE;
 }
 
 static HRESULT WINAPI DI8CF_LockServer(LPCLASSFACTORY iface,BOOL dolock) {
     TRACE("(%p)->(%d)\n", iface, dolock);
 
     if(dolock)
         LockModule();
     else
         UnlockModule();
 
     return S_OK;
 }
 
 static const IClassFactoryVtbl DI8CF_Vtbl = {
     DI8CF_QueryInterface,
     DI8CF_AddRef,
     DI8CF_Release,
     DI8CF_CreateInstance,
     DI8CF_LockServer
 };
 static IClassFactoryImpl DINPUT8_CF = { { &DI8CF_Vtbl } };
 
 
 /***********************************************************************
  *              DllCanUnloadNow (DINPUT8.@)
  */
 HRESULT WINAPI DllCanUnloadNow(void)
 {
     return dll_count == 0 ? S_OK : S_FALSE;
 }
 
 /***********************************************************************
  *              DllGetClassObject (DINPUT8.@)
  */
 HRESULT WINAPI DllGetClassObject(REFCLSID rclsid, REFIID riid, LPVOID *ppv)
 {
     TRACE("(%s,%s,%p)\n", debugstr_guid(rclsid), debugstr_guid(riid), ppv);
     if ( IsEqualCLSID( &IID_IClassFactory, riid ) ) {
         *ppv = &DINPUT8_CF;
         IClassFactory_AddRef((IClassFactory*)*ppv);
         return S_OK;
     }
 
     FIXME("(%s,%s,%p): no interface found.\n", debugstr_guid(rclsid), debugstr_guid(riid), ppv);
     return CLASS_E_CLASSNOTAVAILABLE;
 }
 
 /***********************************************************************
  *              DllMain
  */
 BOOL WINAPI DllMain(HINSTANCE hInstDLL, DWORD reason, LPVOID lpv)
 {
     switch (reason)
     {
     case DLL_PROCESS_ATTACH:
         instance = hInstDLL;
         DisableThreadLibraryCalls( hInstDLL );
         break;
     }
     return TRUE;
 }
 
 /***********************************************************************
  *              DllRegisterServer (DINPUT8.@)
  */
 HRESULT WINAPI DllRegisterServer(void)
 {
     return __wine_register_resources( instance, NULL );
 }
 
 /***********************************************************************
  *              DllUnregisterServer (DINPUT8.@)
  */
 HRESULT WINAPI DllUnregisterServer(void)
 {
     return __wine_unregister_resources( instance, NULL );
 }