wine/dlls/user/driver.c

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/*
* USER driver support
*
* Copyright 2000, 2005 Alexandre Julliard
*
* 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#include <stdarg.h>
#include <stdio.h>
#include "windef.h"
#include "winbase.h"
#include "winuser.h"
#include "user_private.h"
#include "wine/debug.h"
WINE_DEFAULT_DEBUG_CHANNEL(user);
static const USER_DRIVER null_driver, lazy_load_driver;
const USER_DRIVER *USER_Driver = &lazy_load_driver;
/* load the graphics driver */
static const USER_DRIVER *load_driver(void)
{
char buffer[MAX_PATH], libname[32], *name, *next;
HKEY hkey;
void *ptr;
HMODULE graphics_driver;
USER_DRIVER *driver, *prev;
strcpy( buffer, "x11" ); /* default value */
/* @@ Wine registry key: HKCU\Software\Wine\Drivers */
if (!RegOpenKeyA( HKEY_CURRENT_USER, "Software\\Wine\\Drivers", &hkey ))
{
DWORD type, count = sizeof(buffer);
RegQueryValueExA( hkey, "Graphics", 0, &type, (LPBYTE) buffer, &count );
RegCloseKey( hkey );
}
name = buffer;
while (name)
{
next = strchr( name, ',' );
if (next) *next++ = 0;
snprintf( libname, sizeof(libname), "wine%s.drv", name );
if ((graphics_driver = LoadLibraryA( libname )) != 0) break;
name = next;
}
driver = HeapAlloc( GetProcessHeap(), 0, sizeof(*driver) );
memcpy( driver, &null_driver, sizeof(*driver) );
if (graphics_driver)
{
#define GET_USER_FUNC(name) \
do { if ((ptr = GetProcAddress( graphics_driver, #name ))) driver->p##name = ptr; } while(0)
GET_USER_FUNC(ActivateKeyboardLayout);
GET_USER_FUNC(Beep);
GET_USER_FUNC(GetAsyncKeyState);
GET_USER_FUNC(GetKeyNameText);
GET_USER_FUNC(GetKeyboardLayout);
GET_USER_FUNC(GetKeyboardLayoutList);
GET_USER_FUNC(GetKeyboardLayoutName);
GET_USER_FUNC(LoadKeyboardLayout);
GET_USER_FUNC(MapVirtualKeyEx);
GET_USER_FUNC(SendInput);
GET_USER_FUNC(ToUnicodeEx);
GET_USER_FUNC(UnloadKeyboardLayout);
GET_USER_FUNC(VkKeyScanEx);
GET_USER_FUNC(SetCursor);
GET_USER_FUNC(GetCursorPos);
GET_USER_FUNC(SetCursorPos);
GET_USER_FUNC(GetScreenSaveActive);
GET_USER_FUNC(SetScreenSaveActive);
GET_USER_FUNC(AcquireClipboard);
GET_USER_FUNC(EmptyClipboard);
GET_USER_FUNC(SetClipboardData);
GET_USER_FUNC(GetClipboardData);
GET_USER_FUNC(CountClipboardFormats);
GET_USER_FUNC(EnumClipboardFormats);
GET_USER_FUNC(IsClipboardFormatAvailable);
GET_USER_FUNC(RegisterClipboardFormat);
GET_USER_FUNC(GetClipboardFormatName);
GET_USER_FUNC(EndClipboardUpdate);
GET_USER_FUNC(ResetSelectionOwner);
GET_USER_FUNC(ChangeDisplaySettingsEx);
GET_USER_FUNC(EnumDisplaySettingsEx);
GET_USER_FUNC(CreateDesktopWindow);
GET_USER_FUNC(CreateWindow);
GET_USER_FUNC(DestroyWindow);
GET_USER_FUNC(GetDCEx);
GET_USER_FUNC(MsgWaitForMultipleObjectsEx);
GET_USER_FUNC(ReleaseDC);
GET_USER_FUNC(ScrollDC);
GET_USER_FUNC(SetFocus);
GET_USER_FUNC(SetParent);
GET_USER_FUNC(SetWindowPos);
GET_USER_FUNC(SetWindowRgn);
GET_USER_FUNC(SetWindowIcon);
GET_USER_FUNC(SetWindowStyle);
GET_USER_FUNC(SetWindowText);
GET_USER_FUNC(ShowWindow);
GET_USER_FUNC(SysCommandSizeMove);
GET_USER_FUNC(WindowFromDC);
GET_USER_FUNC(WindowMessage);
#undef GET_USER_FUNC
}
prev = InterlockedCompareExchangePointer( (void **)&USER_Driver, driver, (void *)&lazy_load_driver );
if (prev != &lazy_load_driver)
{
/* another thread beat us to it */
HeapFree( GetProcessHeap(), 0, driver );
FreeLibrary( graphics_driver );
driver = prev;
}
return driver;
}
/* unload the graphics driver on process exit */
void USER_unload_driver(void)
{
/* make sure we don't try to call the driver after it has been detached */
USER_Driver = &null_driver;
}
/**********************************************************************
* Null user driver
*
* These are fallbacks for entry points that are not implemented in the real driver.
*/
static HKL nulldrv_ActivateKeyboardLayout( HKL layout, UINT flags )
{
return 0;
}
static void nulldrv_Beep(void)
{
}
static SHORT nulldrv_GetAsyncKeyState( INT key )
{
return 0;
}
static INT nulldrv_GetKeyNameText( LONG lparam, LPWSTR buffer, INT size )
{
return 0;
}
static HKL nulldrv_GetKeyboardLayout( DWORD layout )
{
return 0;
}
static UINT nulldrv_GetKeyboardLayoutList( INT count, HKL *layouts )
{
return 0;
}
static BOOL nulldrv_GetKeyboardLayoutName( LPWSTR name )
{
return FALSE;
}
static HKL nulldrv_LoadKeyboardLayout( LPCWSTR name, UINT flags )
{
return 0;
}
static UINT nulldrv_MapVirtualKeyEx( UINT code, UINT type, HKL layout )
{
return 0;
}
static UINT nulldrv_SendInput( UINT count, LPINPUT inputs, int size )
{
return 0;
}
static INT nulldrv_ToUnicodeEx( UINT virt, UINT scan, LPBYTE state, LPWSTR str,
int size, UINT flags, HKL layout )
{
return 0;
}
static BOOL nulldrv_UnloadKeyboardLayout( HKL layout )
{
return 0;
}
static SHORT nulldrv_VkKeyScanEx( WCHAR ch, HKL layout )
{
return -1;
}
static void nulldrv_SetCursor( struct tagCURSORICONINFO *info )
{
}
static BOOL nulldrv_GetCursorPos( LPPOINT pt )
{
return FALSE;
}
static BOOL nulldrv_SetCursorPos( INT x, INT y )
{
return FALSE;
}
static BOOL nulldrv_GetScreenSaveActive(void)
{
return FALSE;
}
static void nulldrv_SetScreenSaveActive( BOOL on )
{
}
static void nulldrv_AcquireClipboard( HWND hwnd )
{
}
static BOOL nulldrv_CountClipboardFormats(void)
{
return 0;
}
static void nulldrv_EmptyClipboard( BOOL keepunowned )
{
}
static void nulldrv_EndClipboardUpdate(void)
{
}
static UINT nulldrv_EnumClipboardFormats( UINT format )
{
return 0;
}
static BOOL nulldrv_GetClipboardData( UINT format, HANDLE16 *h16, HANDLE *h32 )
{
return FALSE;
}
static INT nulldrv_GetClipboardFormatName( UINT format, LPWSTR buffer, UINT len )
{
return FALSE;
}
static BOOL nulldrv_IsClipboardFormatAvailable( UINT format )
{
return FALSE;
}
static UINT nulldrv_RegisterClipboardFormat( LPCWSTR name )
{
return 0;
}
static void nulldrv_ResetSelectionOwner( HWND hwnd, BOOL flag )
{
}
static BOOL nulldrv_SetClipboardData( UINT format, HANDLE16 h16, HANDLE h32, BOOL owner )
{
return FALSE;
}
static LONG nulldrv_ChangeDisplaySettingsEx( LPCWSTR name, LPDEVMODEW mode, HWND hwnd,
DWORD flags, LPVOID lparam )
{
return DISP_CHANGE_FAILED;
}
static BOOL nulldrv_EnumDisplaySettingsEx( LPCWSTR name, DWORD num, LPDEVMODEW mode, DWORD flags )
{
return FALSE;
}
static BOOL nulldrv_CreateDesktopWindow( HWND hwnd )
{
return TRUE;
}
static BOOL nulldrv_CreateWindow( HWND hwnd, CREATESTRUCTA *cs, BOOL unicode )
{
static int warned;
if (!warned++)
MESSAGE( "Application tries to create a window, but no driver could be loaded.\n"
"Make sure that your X server is running and that $DISPLAY is set correctly.\n" );
return FALSE;
}
static void nulldrv_DestroyWindow( HWND hwnd )
{
}
static HDC nulldrv_GetDCEx( HWND hwnd, HRGN hrgn, DWORD flags )
{
return 0;
}
static DWORD nulldrv_MsgWaitForMultipleObjectsEx( DWORD count, const HANDLE *handles, DWORD timeout,
DWORD mask, DWORD flags )
{
return WaitForMultipleObjectsEx( count, handles, flags & MWMO_WAITALL,
timeout, flags & MWMO_ALERTABLE );
}
static INT nulldrv_ReleaseDC( HWND hwnd, HDC hdc, BOOL end_paint )
{
return 0;
}
static BOOL nulldrv_ScrollDC( HDC hdc, INT dx, INT dy, const RECT *scroll, const RECT *clip,
HRGN hrgn, LPRECT update )
{
return FALSE;
}
static void nulldrv_SetFocus( HWND hwnd )
{
}
static HWND nulldrv_SetParent( HWND hwnd, HWND parent )
{
return 0;
}
static BOOL nulldrv_SetWindowPos( WINDOWPOS *pos )
{
return FALSE;
}
static int nulldrv_SetWindowRgn( HWND hwnd, HRGN hrgn, BOOL redraw )
{
return 1;
}
static void nulldrv_SetWindowIcon( HWND hwnd, UINT type, HICON icon )
{
}
static void nulldrv_SetWindowStyle( HWND hwnd, DWORD old_style )
{
}
static void nulldrv_SetWindowText( HWND hwnd, LPCWSTR text )
{
}
static BOOL nulldrv_ShowWindow( HWND hwnd, INT cmd )
{
return FALSE;
}
static void nulldrv_SysCommandSizeMove( HWND hwnd, WPARAM wparam )
{
}
static HWND nulldrv_WindowFromDC( HDC hdc )
{
return 0;
}
static LRESULT nulldrv_WindowMessage( HWND hwnd, UINT msg, WPARAM wparam, LPARAM lparam )
{
return 0;
}
static const USER_DRIVER null_driver =
{
/* keyboard functions */
nulldrv_ActivateKeyboardLayout,
nulldrv_Beep,
nulldrv_GetAsyncKeyState,
nulldrv_GetKeyNameText,
nulldrv_GetKeyboardLayout,
nulldrv_GetKeyboardLayoutList,
nulldrv_GetKeyboardLayoutName,
nulldrv_LoadKeyboardLayout,
nulldrv_MapVirtualKeyEx,
nulldrv_SendInput,
nulldrv_ToUnicodeEx,
nulldrv_UnloadKeyboardLayout,
nulldrv_VkKeyScanEx,
/* mouse functions */
nulldrv_SetCursor,
nulldrv_GetCursorPos,
nulldrv_SetCursorPos,
/* screen saver functions */
nulldrv_GetScreenSaveActive,
nulldrv_SetScreenSaveActive,
/* clipboard functions */
nulldrv_AcquireClipboard,
nulldrv_CountClipboardFormats,
nulldrv_EmptyClipboard,
nulldrv_EndClipboardUpdate,
nulldrv_EnumClipboardFormats,
nulldrv_GetClipboardData,
nulldrv_GetClipboardFormatName,
nulldrv_IsClipboardFormatAvailable,
nulldrv_RegisterClipboardFormat,
nulldrv_ResetSelectionOwner,
nulldrv_SetClipboardData,
/* display modes */
nulldrv_ChangeDisplaySettingsEx,
nulldrv_EnumDisplaySettingsEx,
/* windowing functions */
nulldrv_CreateDesktopWindow,
nulldrv_CreateWindow,
nulldrv_DestroyWindow,
nulldrv_GetDCEx,
nulldrv_MsgWaitForMultipleObjectsEx,
nulldrv_ReleaseDC,
nulldrv_ScrollDC,
nulldrv_SetFocus,
nulldrv_SetParent,
nulldrv_SetWindowPos,
nulldrv_SetWindowRgn,
nulldrv_SetWindowIcon,
nulldrv_SetWindowStyle,
nulldrv_SetWindowText,
nulldrv_ShowWindow,
nulldrv_SysCommandSizeMove,
nulldrv_WindowFromDC,
nulldrv_WindowMessage
};
/**********************************************************************
* Lazy loading user driver
*
* Initial driver used before another driver is loaded.
* Each entry point simply loads the real driver and chains to it.
*/
static HKL loaderdrv_ActivateKeyboardLayout( HKL layout, UINT flags )
{
return load_driver()->pActivateKeyboardLayout( layout, flags );
}
static void loaderdrv_Beep(void)
{
load_driver()->pBeep();
}
static SHORT loaderdrv_GetAsyncKeyState( INT key )
{
return load_driver()->pGetAsyncKeyState( key );
}
static INT loaderdrv_GetKeyNameText( LONG lparam, LPWSTR buffer, INT size )
{
return load_driver()->pGetKeyNameText( lparam, buffer, size );
}
static HKL loaderdrv_GetKeyboardLayout( DWORD layout )
{
return load_driver()->pGetKeyboardLayout( layout );
}
static UINT loaderdrv_GetKeyboardLayoutList( INT count, HKL *layouts )
{
return load_driver()->pGetKeyboardLayoutList( count, layouts );
}
static BOOL loaderdrv_GetKeyboardLayoutName( LPWSTR name )
{
return load_driver()->pGetKeyboardLayoutName( name );
}
static HKL loaderdrv_LoadKeyboardLayout( LPCWSTR name, UINT flags )
{
return load_driver()->pLoadKeyboardLayout( name, flags );
}
static UINT loaderdrv_MapVirtualKeyEx( UINT code, UINT type, HKL layout )
{
return load_driver()->pMapVirtualKeyEx( code, type, layout );
}
static UINT loaderdrv_SendInput( UINT count, LPINPUT inputs, int size )
{
return load_driver()->pSendInput( count, inputs, size );
}
static INT loaderdrv_ToUnicodeEx( UINT virt, UINT scan, LPBYTE state, LPWSTR str,
int size, UINT flags, HKL layout )
{
return load_driver()->pToUnicodeEx( virt, scan, state, str, size, flags, layout );
}
static BOOL loaderdrv_UnloadKeyboardLayout( HKL layout )
{
return load_driver()->pUnloadKeyboardLayout( layout );
}
static SHORT loaderdrv_VkKeyScanEx( WCHAR ch, HKL layout )
{
return load_driver()->pVkKeyScanEx( ch, layout );
}
static void loaderdrv_SetCursor( struct tagCURSORICONINFO *info )
{
load_driver()->pSetCursor( info );
}
static BOOL loaderdrv_GetCursorPos( LPPOINT pt )
{
return load_driver()->pGetCursorPos( pt );
}
static BOOL loaderdrv_SetCursorPos( INT x, INT y )
{
return load_driver()->pSetCursorPos( x, y );
}
static BOOL loaderdrv_GetScreenSaveActive(void)
{
return load_driver()->pGetScreenSaveActive();
}
static void loaderdrv_SetScreenSaveActive( BOOL on )
{
load_driver()->pSetScreenSaveActive( on );
}
static void loaderdrv_AcquireClipboard( HWND hwnd )
{
load_driver()->pAcquireClipboard( hwnd );
}
static BOOL loaderdrv_CountClipboardFormats(void)
{
return load_driver()->pCountClipboardFormats();
}
static void loaderdrv_EmptyClipboard( BOOL keepunowned )
{
load_driver()->pEmptyClipboard( keepunowned );
}
static void loaderdrv_EndClipboardUpdate(void)
{
load_driver()->pEndClipboardUpdate();
}
static UINT loaderdrv_EnumClipboardFormats( UINT format )
{
return load_driver()->pEnumClipboardFormats( format );
}
static BOOL loaderdrv_GetClipboardData( UINT format, HANDLE16 *h16, HANDLE *h32 )
{
return load_driver()->pGetClipboardData( format, h16, h32 );
}
static INT loaderdrv_GetClipboardFormatName( UINT format, LPWSTR buffer, UINT len )
{
return load_driver()->pGetClipboardFormatName( format, buffer, len );
}
static BOOL loaderdrv_IsClipboardFormatAvailable( UINT format )
{
return load_driver()->pIsClipboardFormatAvailable( format );
}
static UINT loaderdrv_RegisterClipboardFormat( LPCWSTR name )
{
return load_driver()->pRegisterClipboardFormat( name );
}
static void loaderdrv_ResetSelectionOwner( HWND hwnd, BOOL flag )
{
load_driver()->pResetSelectionOwner( hwnd, flag );
}
static BOOL loaderdrv_SetClipboardData( UINT format, HANDLE16 h16, HANDLE h32, BOOL owner )
{
return load_driver()->pSetClipboardData( format, h16, h32, owner );
}
static LONG loaderdrv_ChangeDisplaySettingsEx( LPCWSTR name, LPDEVMODEW mode, HWND hwnd,
DWORD flags, LPVOID lparam )
{
return load_driver()->pChangeDisplaySettingsEx( name, mode, hwnd, flags, lparam );
}
static BOOL loaderdrv_EnumDisplaySettingsEx( LPCWSTR name, DWORD num, LPDEVMODEW mode, DWORD flags )
{
return load_driver()->pEnumDisplaySettingsEx( name, num, mode, flags );
}
static BOOL loaderdrv_CreateDesktopWindow( HWND hwnd )
{
return load_driver()->pCreateDesktopWindow( hwnd );
}
static BOOL loaderdrv_CreateWindow( HWND hwnd, CREATESTRUCTA *cs, BOOL unicode )
{
return load_driver()->pCreateWindow( hwnd, cs, unicode );
}
static void loaderdrv_DestroyWindow( HWND hwnd )
{
load_driver()->pDestroyWindow( hwnd );
}
static HDC loaderdrv_GetDCEx( HWND hwnd, HRGN hrgn, DWORD flags )
{
return load_driver()->pGetDCEx( hwnd, hrgn, flags );
}
static DWORD loaderdrv_MsgWaitForMultipleObjectsEx( DWORD count, const HANDLE *handles, DWORD timeout,
DWORD mask, DWORD flags )
{
return load_driver()->pMsgWaitForMultipleObjectsEx( count, handles, timeout, mask, flags );
}
static INT loaderdrv_ReleaseDC( HWND hwnd, HDC hdc, BOOL end_paint )
{
return load_driver()->pReleaseDC( hwnd, hdc, end_paint );
}
static BOOL loaderdrv_ScrollDC( HDC hdc, INT dx, INT dy, const RECT *scroll, const RECT *clip,
HRGN hrgn, LPRECT update )
{
return load_driver()->pScrollDC( hdc, dx, dy, scroll, clip, hrgn, update );
}
static void loaderdrv_SetFocus( HWND hwnd )
{
load_driver()->pSetFocus( hwnd );
}
static HWND loaderdrv_SetParent( HWND hwnd, HWND parent )
{
return load_driver()->pSetParent( hwnd, parent );
}
static BOOL loaderdrv_SetWindowPos( WINDOWPOS *pos )
{
return load_driver()->pSetWindowPos( pos );
}
static int loaderdrv_SetWindowRgn( HWND hwnd, HRGN hrgn, BOOL redraw )
{
return load_driver()->pSetWindowRgn( hwnd, hrgn, redraw );
}
static void loaderdrv_SetWindowIcon( HWND hwnd, UINT type, HICON icon )
{
load_driver()->pSetWindowIcon( hwnd, type, icon );
}
static void loaderdrv_SetWindowStyle( HWND hwnd, DWORD old_style )
{
load_driver()->pSetWindowStyle( hwnd, old_style );
}
static void loaderdrv_SetWindowText( HWND hwnd, LPCWSTR text )
{
load_driver()->pSetWindowText( hwnd, text );
}
static BOOL loaderdrv_ShowWindow( HWND hwnd, INT cmd )
{
return load_driver()->pShowWindow( hwnd, cmd );
}
static void loaderdrv_SysCommandSizeMove( HWND hwnd, WPARAM wparam )
{
load_driver()->pSysCommandSizeMove( hwnd, wparam );
}
static HWND loaderdrv_WindowFromDC( HDC hdc )
{
return load_driver()->pWindowFromDC( hdc );
}
static LRESULT loaderdrv_WindowMessage( HWND hwnd, UINT msg, WPARAM wparam, LPARAM lparam )
{
return load_driver()->pWindowMessage( hwnd, msg, wparam, lparam );
}
static const USER_DRIVER lazy_load_driver =
{
/* keyboard functions */
loaderdrv_ActivateKeyboardLayout,
loaderdrv_Beep,
loaderdrv_GetAsyncKeyState,
loaderdrv_GetKeyNameText,
loaderdrv_GetKeyboardLayout,
loaderdrv_GetKeyboardLayoutList,
loaderdrv_GetKeyboardLayoutName,
loaderdrv_LoadKeyboardLayout,
loaderdrv_MapVirtualKeyEx,
loaderdrv_SendInput,
loaderdrv_ToUnicodeEx,
loaderdrv_UnloadKeyboardLayout,
loaderdrv_VkKeyScanEx,
/* mouse functions */
loaderdrv_SetCursor,
loaderdrv_GetCursorPos,
loaderdrv_SetCursorPos,
/* screen saver functions */
loaderdrv_GetScreenSaveActive,
loaderdrv_SetScreenSaveActive,
/* clipboard functions */
loaderdrv_AcquireClipboard,
loaderdrv_CountClipboardFormats,
loaderdrv_EmptyClipboard,
loaderdrv_EndClipboardUpdate,
loaderdrv_EnumClipboardFormats,
loaderdrv_GetClipboardData,
loaderdrv_GetClipboardFormatName,
loaderdrv_IsClipboardFormatAvailable,
loaderdrv_RegisterClipboardFormat,
loaderdrv_ResetSelectionOwner,
loaderdrv_SetClipboardData,
/* display modes */
loaderdrv_ChangeDisplaySettingsEx,
loaderdrv_EnumDisplaySettingsEx,
/* windowing functions */
loaderdrv_CreateDesktopWindow,
loaderdrv_CreateWindow,
loaderdrv_DestroyWindow,
loaderdrv_GetDCEx,
loaderdrv_MsgWaitForMultipleObjectsEx,
loaderdrv_ReleaseDC,
loaderdrv_ScrollDC,
loaderdrv_SetFocus,
loaderdrv_SetParent,
loaderdrv_SetWindowPos,
loaderdrv_SetWindowRgn,
loaderdrv_SetWindowIcon,
loaderdrv_SetWindowStyle,
loaderdrv_SetWindowText,
loaderdrv_ShowWindow,
loaderdrv_SysCommandSizeMove,
loaderdrv_WindowFromDC,
loaderdrv_WindowMessage
};