Sweden-Number/dlls/user32/driver.c

411 lines
12 KiB
C

/*
* 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., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
*/
#include <stdarg.h>
#include <stdio.h>
#include <wchar.h>
#include "user_private.h"
#include "winnls.h"
#include "wine/debug.h"
#include "controls.h"
WINE_DEFAULT_DEBUG_CHANNEL(user);
WINE_DECLARE_DEBUG_CHANNEL(winediag);
static struct user_driver_funcs null_driver, lazy_load_driver;
const struct user_driver_funcs *USER_Driver = &lazy_load_driver;
static char driver_load_error[80];
static BOOL CDECL nodrv_CreateWindow( HWND hwnd );
static BOOL load_desktop_driver( HWND hwnd )
{
BOOL ret = FALSE;
HKEY hkey;
DWORD size;
WCHAR path[MAX_PATH];
WCHAR key[ARRAY_SIZE(L"System\\CurrentControlSet\\Control\\Video\\{}\\0000") + 40];
UINT guid_atom;
USER_CheckNotLock();
strcpy( driver_load_error, "The explorer process failed to start." ); /* default error */
wait_graphics_driver_ready();
guid_atom = HandleToULong( GetPropW( hwnd, L"__wine_display_device_guid" ));
lstrcpyW( key, L"System\\CurrentControlSet\\Control\\Video\\{" );
if (!GlobalGetAtomNameW( guid_atom, key + lstrlenW(key), 40 )) return 0;
lstrcatW( key, L"}\\0000" );
if (RegOpenKeyW( HKEY_LOCAL_MACHINE, key, &hkey )) return 0;
size = sizeof(path);
if (!RegQueryValueExW( hkey, L"GraphicsDriver", NULL, NULL, (BYTE *)path, &size ))
{
if (wcscmp( path, L"null" ))
{
ret = LoadLibraryW( path ) != NULL;
if (!ret) ERR( "failed to load %s\n", debugstr_w(path) );
}
else
{
__wine_set_user_driver( &null_driver, WINE_GDI_DRIVER_VERSION );
ret = TRUE;
}
TRACE( "%s\n", debugstr_w(path) );
}
else
{
size = sizeof(driver_load_error);
RegQueryValueExA( hkey, "DriverError", NULL, NULL, (BYTE *)driver_load_error, &size );
}
RegCloseKey( hkey );
return ret;
}
/* load the graphics driver */
static const struct user_driver_funcs *load_driver(void)
{
struct user_driver_funcs driver;
USEROBJECTFLAGS flags;
HWINSTA winstation;
if (!load_desktop_driver( GetDesktopWindow() ) || USER_Driver == &lazy_load_driver)
{
memset( &driver, 0, sizeof(driver) );
winstation = NtUserGetProcessWindowStation();
if (!NtUserGetObjectInformation( winstation, UOI_FLAGS, &flags, sizeof(flags), NULL )
|| (flags.dwFlags & WSF_VISIBLE))
driver.pCreateWindow = nodrv_CreateWindow;
__wine_set_user_driver( &driver, WINE_GDI_DRIVER_VERSION );
}
return USER_Driver;
}
/* unload the graphics driver on process exit */
void USER_unload_driver(void)
{
struct user_driver_funcs *prev;
__wine_set_display_driver( &null_driver, WINE_GDI_DRIVER_VERSION );
/* make sure we don't try to call the driver after it has been detached */
prev = InterlockedExchangePointer( (void **)&USER_Driver, &null_driver );
if (prev != &lazy_load_driver && prev != &null_driver)
HeapFree( GetProcessHeap(), 0, prev );
}
/**********************************************************************
* Null user driver
*
* These are fallbacks for entry points that are not implemented in the real driver.
*/
static void CDECL nulldrv_DestroyCursorIcon( HCURSOR cursor )
{
}
static BOOL CDECL nodrv_CreateWindow( HWND hwnd )
{
static int warned;
HWND parent = GetAncestor( hwnd, GA_PARENT );
/* HWND_MESSAGE windows don't need a graphics driver */
if (!parent || parent == get_user_thread_info()->msg_window) return TRUE;
if (warned++) return FALSE;
ERR_(winediag)( "Application tried to create a window, but no driver could be loaded.\n" );
if (driver_load_error[0]) ERR_(winediag)( "%s\n", driver_load_error );
return FALSE;
}
static void CDECL nulldrv_DestroyWindow( HWND hwnd )
{
}
static DWORD CDECL nulldrv_MsgWaitForMultipleObjectsEx( DWORD count, const HANDLE *handles, DWORD timeout,
DWORD mask, DWORD flags )
{
if (!count && !timeout) return WAIT_TIMEOUT;
return WaitForMultipleObjectsEx( count, handles, flags & MWMO_WAITALL,
timeout, flags & MWMO_ALERTABLE );
}
static void CDECL nulldrv_ReleaseDC( HWND hwnd, HDC hdc )
{
}
static void CDECL nulldrv_SetCapture( HWND hwnd, UINT flags )
{
}
static void CDECL nulldrv_SetFocus( HWND hwnd )
{
}
static void CDECL nulldrv_SetParent( HWND hwnd, HWND parent, HWND old_parent )
{
}
static void CDECL nulldrv_SetWindowIcon( HWND hwnd, UINT type, HICON icon )
{
}
static void CDECL nulldrv_SetWindowStyle( HWND hwnd, INT offset, STYLESTRUCT *style )
{
}
static void CDECL nulldrv_SetWindowText( HWND hwnd, LPCWSTR text )
{
}
static UINT CDECL nulldrv_ShowWindow( HWND hwnd, INT cmd, RECT *rect, UINT swp )
{
return ~0; /* use default implementation */
}
static LRESULT CDECL nulldrv_SysCommand( HWND hwnd, WPARAM wparam, LPARAM lparam )
{
return -1;
}
static LRESULT CDECL nulldrv_WindowMessage( HWND hwnd, UINT msg, WPARAM wparam, LPARAM lparam )
{
return 0;
}
static BOOL CDECL nulldrv_WindowPosChanging( HWND hwnd, HWND insert_after, UINT swp_flags,
const RECT *window_rect, const RECT *client_rect,
RECT *visible_rect, struct window_surface **surface )
{
return FALSE;
}
static void CDECL nulldrv_WindowPosChanged( HWND hwnd, HWND insert_after, UINT swp_flags,
const RECT *window_rect, const RECT *client_rect,
const RECT *visible_rect, const RECT *valid_rects,
struct window_surface *surface )
{
}
static BOOL CDECL nulldrv_SystemParametersInfo( UINT action, UINT int_param, void *ptr_param, UINT flags )
{
return FALSE;
}
static void CDECL nulldrv_ThreadDetach( void )
{
}
/**********************************************************************
* 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 void CDECL loaderdrv_Beep(void)
{
load_driver()->pBeep();
}
static BOOL CDECL loaderdrv_RegisterHotKey( HWND hwnd, UINT modifiers, UINT vk )
{
return load_driver()->pRegisterHotKey( hwnd, modifiers, vk );
}
static void CDECL loaderdrv_UnregisterHotKey( HWND hwnd, UINT modifiers, UINT vk )
{
load_driver()->pUnregisterHotKey( hwnd, modifiers, vk );
}
static void CDECL loaderdrv_SetCursor( HCURSOR cursor )
{
load_driver()->pSetCursor( cursor );
}
static BOOL CDECL loaderdrv_GetCursorPos( LPPOINT pt )
{
return load_driver()->pGetCursorPos( pt );
}
static BOOL CDECL loaderdrv_SetCursorPos( INT x, INT y )
{
return load_driver()->pSetCursorPos( x, y );
}
static BOOL CDECL loaderdrv_ClipCursor( LPCRECT clip )
{
return load_driver()->pClipCursor( clip );
}
static void CDECL loaderdrv_UpdateClipboard(void)
{
load_driver()->pUpdateClipboard();
}
static LONG CDECL loaderdrv_ChangeDisplaySettingsEx( LPCWSTR name, LPDEVMODEW mode, HWND hwnd,
DWORD flags, LPVOID lparam )
{
return load_driver()->pChangeDisplaySettingsEx( name, mode, hwnd, flags, lparam );
}
static BOOL CDECL loaderdrv_EnumDisplayMonitors( HDC hdc, LPRECT rect, MONITORENUMPROC proc, LPARAM lp )
{
return load_driver()->pEnumDisplayMonitors( hdc, rect, proc, lp );
}
static BOOL CDECL loaderdrv_EnumDisplaySettingsEx( LPCWSTR name, DWORD num, LPDEVMODEW mode, DWORD flags )
{
return load_driver()->pEnumDisplaySettingsEx( name, num, mode, flags );
}
static BOOL CDECL loaderdrv_GetMonitorInfo( HMONITOR handle, LPMONITORINFO info )
{
return load_driver()->pGetMonitorInfo( handle, info );
}
static BOOL CDECL loaderdrv_CreateDesktopWindow( HWND hwnd )
{
return load_driver()->pCreateDesktopWindow( hwnd );
}
static BOOL CDECL loaderdrv_CreateWindow( HWND hwnd )
{
return load_driver()->pCreateWindow( hwnd );
}
static void CDECL loaderdrv_FlashWindowEx( FLASHWINFO *info )
{
load_driver()->pFlashWindowEx( info );
}
static void CDECL loaderdrv_GetDC( HDC hdc, HWND hwnd, HWND top_win, const RECT *win_rect,
const RECT *top_rect, DWORD flags )
{
load_driver()->pGetDC( hdc, hwnd, top_win, win_rect, top_rect, flags );
}
static void CDECL loaderdrv_SetLayeredWindowAttributes( HWND hwnd, COLORREF key, BYTE alpha, DWORD flags )
{
load_driver()->pSetLayeredWindowAttributes( hwnd, key, alpha, flags );
}
static void CDECL loaderdrv_SetWindowRgn( HWND hwnd, HRGN hrgn, BOOL redraw )
{
load_driver()->pSetWindowRgn( hwnd, hrgn, redraw );
}
static BOOL CDECL loaderdrv_UpdateLayeredWindow( HWND hwnd, const UPDATELAYEREDWINDOWINFO *info,
const RECT *window_rect )
{
return load_driver()->pUpdateLayeredWindow( hwnd, info, window_rect );
}
static struct user_driver_funcs lazy_load_driver =
{
{ NULL },
/* keyboard functions */
NULL,
loaderdrv_Beep,
NULL,
NULL,
NULL,
loaderdrv_RegisterHotKey,
NULL,
loaderdrv_UnregisterHotKey,
NULL,
/* cursor/icon functions */
nulldrv_DestroyCursorIcon,
loaderdrv_SetCursor,
loaderdrv_GetCursorPos,
loaderdrv_SetCursorPos,
loaderdrv_ClipCursor,
/* clipboard functions */
loaderdrv_UpdateClipboard,
/* display modes */
loaderdrv_ChangeDisplaySettingsEx,
loaderdrv_EnumDisplayMonitors,
loaderdrv_EnumDisplaySettingsEx,
loaderdrv_GetMonitorInfo,
NULL,
/* windowing functions */
loaderdrv_CreateDesktopWindow,
loaderdrv_CreateWindow,
nulldrv_DestroyWindow,
loaderdrv_FlashWindowEx,
loaderdrv_GetDC,
nulldrv_MsgWaitForMultipleObjectsEx,
nulldrv_ReleaseDC,
NULL,
nulldrv_SetCapture,
nulldrv_SetFocus,
loaderdrv_SetLayeredWindowAttributes,
nulldrv_SetParent,
loaderdrv_SetWindowRgn,
nulldrv_SetWindowIcon,
nulldrv_SetWindowStyle,
nulldrv_SetWindowText,
nulldrv_ShowWindow,
nulldrv_SysCommand,
loaderdrv_UpdateLayeredWindow,
nulldrv_WindowMessage,
nulldrv_WindowPosChanging,
nulldrv_WindowPosChanged,
/* system parameters */
nulldrv_SystemParametersInfo,
/* thread management */
nulldrv_ThreadDetach
};
void CDECL __wine_set_user_driver( const struct user_driver_funcs *funcs, UINT version )
{
struct user_driver_funcs *driver, *prev;
if (version != WINE_GDI_DRIVER_VERSION)
{
ERR( "version mismatch, driver wants %u but user32 has %u\n", version, WINE_GDI_DRIVER_VERSION );
return;
}
driver = HeapAlloc( GetProcessHeap(), 0, sizeof(*driver) );
*driver = *funcs;
#define SET_USER_FUNC(name) \
do { if (!driver->p##name) driver->p##name = nulldrv_##name; } while(0)
SET_USER_FUNC(EnumDisplayMonitors);
SET_USER_FUNC(GetMonitorInfo);
#undef SET_USER_FUNC
prev = InterlockedCompareExchangePointer( (void **)&USER_Driver, driver, &lazy_load_driver );
if (prev != &lazy_load_driver)
{
/* another thread beat us to it */
HeapFree( GetProcessHeap(), 0, driver );
driver = prev;
}
__wine_set_display_driver( driver, version );
}