403 lines
11 KiB
C
403 lines
11 KiB
C
/*
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* USER driver support
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*
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* Copyright 2000, 2005 Alexandre Julliard
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
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*/
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#include <stdarg.h>
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#include <stdio.h>
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#include <wchar.h>
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#include "user_private.h"
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#include "winnls.h"
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#include "wine/debug.h"
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#include "controls.h"
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WINE_DEFAULT_DEBUG_CHANNEL(user);
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WINE_DECLARE_DEBUG_CHANNEL(winediag);
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static struct user_driver_funcs null_driver, lazy_load_driver;
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const struct user_driver_funcs *USER_Driver = &lazy_load_driver;
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static char driver_load_error[80];
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static BOOL CDECL nodrv_CreateWindow( HWND hwnd );
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static BOOL load_desktop_driver( HWND hwnd )
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{
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BOOL ret = FALSE;
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HKEY hkey;
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DWORD size;
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WCHAR path[MAX_PATH];
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WCHAR key[ARRAY_SIZE(L"System\\CurrentControlSet\\Control\\Video\\{}\\0000") + 40];
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UINT guid_atom;
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USER_CheckNotLock();
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strcpy( driver_load_error, "The explorer process failed to start." ); /* default error */
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wait_graphics_driver_ready();
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guid_atom = HandleToULong( GetPropW( hwnd, L"__wine_display_device_guid" ));
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lstrcpyW( key, L"System\\CurrentControlSet\\Control\\Video\\{" );
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if (!GlobalGetAtomNameW( guid_atom, key + lstrlenW(key), 40 )) return 0;
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lstrcatW( key, L"}\\0000" );
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if (RegOpenKeyW( HKEY_LOCAL_MACHINE, key, &hkey )) return 0;
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size = sizeof(path);
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if (!RegQueryValueExW( hkey, L"GraphicsDriver", NULL, NULL, (BYTE *)path, &size ))
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{
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if (wcscmp( path, L"null" ))
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{
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ret = LoadLibraryW( path ) != NULL;
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if (!ret) ERR( "failed to load %s\n", debugstr_w(path) );
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}
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else
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{
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__wine_set_user_driver( &null_driver, WINE_GDI_DRIVER_VERSION );
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ret = TRUE;
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}
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TRACE( "%s\n", debugstr_w(path) );
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}
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else
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{
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size = sizeof(driver_load_error);
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RegQueryValueExA( hkey, "DriverError", NULL, NULL, (BYTE *)driver_load_error, &size );
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}
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RegCloseKey( hkey );
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return ret;
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}
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/* load the graphics driver */
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static const struct user_driver_funcs *load_driver(void)
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{
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struct user_driver_funcs driver;
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USEROBJECTFLAGS flags;
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HWINSTA winstation;
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if (!load_desktop_driver( GetDesktopWindow() ) || USER_Driver == &lazy_load_driver)
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{
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memset( &driver, 0, sizeof(driver) );
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winstation = NtUserGetProcessWindowStation();
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if (!NtUserGetObjectInformation( winstation, UOI_FLAGS, &flags, sizeof(flags), NULL )
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|| (flags.dwFlags & WSF_VISIBLE))
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driver.pCreateWindow = nodrv_CreateWindow;
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__wine_set_user_driver( &driver, WINE_GDI_DRIVER_VERSION );
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}
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return USER_Driver;
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}
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/* unload the graphics driver on process exit */
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void USER_unload_driver(void)
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{
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struct user_driver_funcs *prev;
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__wine_set_display_driver( &null_driver, WINE_GDI_DRIVER_VERSION );
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/* make sure we don't try to call the driver after it has been detached */
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prev = InterlockedExchangePointer( (void **)&USER_Driver, &null_driver );
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if (prev != &lazy_load_driver && prev != &null_driver)
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HeapFree( GetProcessHeap(), 0, prev );
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}
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/**********************************************************************
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* Null user driver
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*
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* These are fallbacks for entry points that are not implemented in the real driver.
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*/
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static BOOL CDECL nulldrv_SetCursorPos( INT x, INT y )
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{
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return TRUE;
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}
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static void CDECL nulldrv_UpdateClipboard(void)
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{
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}
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static BOOL CDECL nodrv_CreateWindow( HWND hwnd )
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{
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static int warned;
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HWND parent = GetAncestor( hwnd, GA_PARENT );
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/* HWND_MESSAGE windows don't need a graphics driver */
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if (!parent || parent == get_user_thread_info()->msg_window) return TRUE;
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if (warned++) return FALSE;
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ERR_(winediag)( "Application tried to create a window, but no driver could be loaded.\n" );
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if (driver_load_error[0]) ERR_(winediag)( "%s\n", driver_load_error );
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return FALSE;
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}
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static BOOL CDECL nulldrv_CreateDesktopWindow( HWND hwnd )
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{
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return TRUE;
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}
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static BOOL CDECL nulldrv_CreateWindow( HWND hwnd )
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{
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return TRUE;
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}
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static void CDECL nulldrv_DestroyWindow( HWND hwnd )
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{
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}
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static void CDECL nulldrv_FlashWindowEx( FLASHWINFO *info )
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{
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}
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static void CDECL nulldrv_GetDC( HDC hdc, HWND hwnd, HWND top_win, const RECT *win_rect,
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const RECT *top_rect, DWORD flags )
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{
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}
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static DWORD CDECL nulldrv_MsgWaitForMultipleObjectsEx( DWORD count, const HANDLE *handles, DWORD timeout,
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DWORD mask, DWORD flags )
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{
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if (!count && !timeout) return WAIT_TIMEOUT;
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return WaitForMultipleObjectsEx( count, handles, flags & MWMO_WAITALL,
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timeout, flags & MWMO_ALERTABLE );
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}
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static void CDECL nulldrv_ReleaseDC( HWND hwnd, HDC hdc )
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{
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}
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static void CDECL nulldrv_SetCapture( HWND hwnd, UINT flags )
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{
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}
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static void CDECL nulldrv_SetFocus( HWND hwnd )
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{
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}
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static void CDECL nulldrv_SetLayeredWindowAttributes( HWND hwnd, COLORREF key, BYTE alpha, DWORD flags )
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{
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}
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static void CDECL nulldrv_SetParent( HWND hwnd, HWND parent, HWND old_parent )
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{
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}
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static void CDECL nulldrv_SetWindowRgn( HWND hwnd, HRGN hrgn, BOOL redraw )
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{
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}
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static void CDECL nulldrv_SetWindowIcon( HWND hwnd, UINT type, HICON icon )
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{
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}
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static void CDECL nulldrv_SetWindowStyle( HWND hwnd, INT offset, STYLESTRUCT *style )
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{
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}
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static void CDECL nulldrv_SetWindowText( HWND hwnd, LPCWSTR text )
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{
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}
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static UINT CDECL nulldrv_ShowWindow( HWND hwnd, INT cmd, RECT *rect, UINT swp )
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{
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return ~0; /* use default implementation */
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}
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static LRESULT CDECL nulldrv_SysCommand( HWND hwnd, WPARAM wparam, LPARAM lparam )
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{
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return -1;
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}
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static BOOL CDECL nulldrv_UpdateLayeredWindow( HWND hwnd, const UPDATELAYEREDWINDOWINFO *info,
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const RECT *window_rect )
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{
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return TRUE;
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}
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static BOOL CDECL nulldrv_WindowPosChanging( HWND hwnd, HWND insert_after, UINT swp_flags,
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const RECT *window_rect, const RECT *client_rect,
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RECT *visible_rect, struct window_surface **surface )
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{
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return FALSE;
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}
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static void CDECL nulldrv_WindowPosChanged( HWND hwnd, HWND insert_after, UINT swp_flags,
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const RECT *window_rect, const RECT *client_rect,
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const RECT *visible_rect, const RECT *valid_rects,
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struct window_surface *surface )
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{
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}
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/**********************************************************************
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* Lazy loading user driver
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*
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* Initial driver used before another driver is loaded.
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* Each entry point simply loads the real driver and chains to it.
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*/
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static BOOL CDECL loaderdrv_SetCursorPos( INT x, INT y )
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{
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return load_driver()->pSetCursorPos( x, y );
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}
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static void CDECL loaderdrv_UpdateClipboard(void)
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{
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load_driver()->pUpdateClipboard();
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}
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static BOOL CDECL loaderdrv_CreateDesktopWindow( HWND hwnd )
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{
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return load_driver()->pCreateDesktopWindow( hwnd );
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}
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static BOOL CDECL loaderdrv_CreateWindow( HWND hwnd )
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{
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return load_driver()->pCreateWindow( hwnd );
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}
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static void CDECL loaderdrv_FlashWindowEx( FLASHWINFO *info )
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{
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load_driver()->pFlashWindowEx( info );
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}
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static void CDECL loaderdrv_GetDC( HDC hdc, HWND hwnd, HWND top_win, const RECT *win_rect,
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const RECT *top_rect, DWORD flags )
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{
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load_driver()->pGetDC( hdc, hwnd, top_win, win_rect, top_rect, flags );
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}
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static void CDECL loaderdrv_SetLayeredWindowAttributes( HWND hwnd, COLORREF key, BYTE alpha, DWORD flags )
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{
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load_driver()->pSetLayeredWindowAttributes( hwnd, key, alpha, flags );
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}
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static void CDECL loaderdrv_SetWindowRgn( HWND hwnd, HRGN hrgn, BOOL redraw )
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{
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load_driver()->pSetWindowRgn( hwnd, hrgn, redraw );
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}
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static BOOL CDECL loaderdrv_UpdateLayeredWindow( HWND hwnd, const UPDATELAYEREDWINDOWINFO *info,
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const RECT *window_rect )
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{
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return load_driver()->pUpdateLayeredWindow( hwnd, info, window_rect );
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}
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static struct user_driver_funcs lazy_load_driver =
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{
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{ NULL },
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/* keyboard functions */
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NULL,
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NULL,
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NULL,
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NULL,
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NULL,
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NULL,
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NULL,
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NULL,
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NULL,
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/* cursor/icon functions */
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NULL,
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NULL,
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NULL,
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loaderdrv_SetCursorPos,
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NULL,
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/* clipboard functions */
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loaderdrv_UpdateClipboard,
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/* display modes */
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NULL,
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NULL,
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NULL,
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/* windowing functions */
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loaderdrv_CreateDesktopWindow,
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loaderdrv_CreateWindow,
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nulldrv_DestroyWindow,
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loaderdrv_FlashWindowEx,
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loaderdrv_GetDC,
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nulldrv_MsgWaitForMultipleObjectsEx,
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nulldrv_ReleaseDC,
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NULL,
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nulldrv_SetCapture,
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nulldrv_SetFocus,
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loaderdrv_SetLayeredWindowAttributes,
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nulldrv_SetParent,
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loaderdrv_SetWindowRgn,
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nulldrv_SetWindowIcon,
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nulldrv_SetWindowStyle,
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nulldrv_SetWindowText,
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nulldrv_ShowWindow,
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nulldrv_SysCommand,
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loaderdrv_UpdateLayeredWindow,
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NULL,
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nulldrv_WindowPosChanging,
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nulldrv_WindowPosChanged,
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/* system parameters */
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NULL,
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/* vulkan support */
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NULL,
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/* thread management */
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NULL
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};
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void CDECL __wine_set_user_driver( const struct user_driver_funcs *funcs, UINT version )
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{
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struct user_driver_funcs *driver, *prev;
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if (version != WINE_GDI_DRIVER_VERSION)
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{
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ERR( "version mismatch, driver wants %u but user32 has %u\n", version, WINE_GDI_DRIVER_VERSION );
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return;
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}
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driver = HeapAlloc( GetProcessHeap(), 0, sizeof(*driver) );
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*driver = *funcs;
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#define SET_USER_FUNC(name) \
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do { if (!driver->p##name) driver->p##name = nulldrv_##name; } while(0)
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SET_USER_FUNC(SetCursorPos);
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SET_USER_FUNC(UpdateClipboard);
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SET_USER_FUNC(CreateDesktopWindow);
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SET_USER_FUNC(CreateWindow);
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SET_USER_FUNC(DestroyWindow);
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SET_USER_FUNC(FlashWindowEx);
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SET_USER_FUNC(GetDC);
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SET_USER_FUNC(MsgWaitForMultipleObjectsEx);
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SET_USER_FUNC(ReleaseDC);
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SET_USER_FUNC(SetCapture);
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SET_USER_FUNC(SetFocus);
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SET_USER_FUNC(SetLayeredWindowAttributes);
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SET_USER_FUNC(SetParent);
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SET_USER_FUNC(SetWindowRgn);
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SET_USER_FUNC(SetWindowIcon);
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SET_USER_FUNC(SetWindowStyle);
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SET_USER_FUNC(SetWindowText);
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SET_USER_FUNC(ShowWindow);
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SET_USER_FUNC(SysCommand);
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SET_USER_FUNC(UpdateLayeredWindow);
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SET_USER_FUNC(WindowPosChanging);
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SET_USER_FUNC(WindowPosChanged);
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#undef SET_USER_FUNC
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prev = InterlockedCompareExchangePointer( (void **)&USER_Driver, driver, &lazy_load_driver );
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if (prev != &lazy_load_driver)
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{
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/* another thread beat us to it */
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HeapFree( GetProcessHeap(), 0, driver );
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driver = prev;
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}
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__wine_set_display_driver( driver, version );
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}
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