Use standard TLS functions instead of a TEB internal field to access

dlls/x11drv/desktop.c

@@ -68,7 +68,7 @@ static DWORD CALLBACK desktop_thread( LPVOID driver_data )
     HWND hwnd;
     Atom atom = x11drv_atom(WM_DELETE_WINDOW);
 
-    NtCurrentTeb()->driver_data = driver_data;
+    TlsSetValue( thread_data_tls_index, driver_data );
     display = thread_display();
     hwnd = GetDesktopWindow();
 
@@ -94,15 +94,15 @@ static DWORD CALLBACK desktop_thread( LPVOID driver_data )
  */
 void X11DRV_create_desktop_thread(void)
 {
-    HANDLE handle = CreateThread( NULL, 0, desktop_thread, NtCurrentTeb()->driver_data,
-                                  0, &desktop_tid );
+    HANDLE handle = CreateThread( NULL, 0, desktop_thread,
+                                  TlsGetValue( thread_data_tls_index ), 0, &desktop_tid );
     if (!handle)
     {
         MESSAGE( "Could not create desktop thread\n" );
         ExitProcess(1);
     }
     /* we transferred our driver data to the new thread */
-    NtCurrentTeb()->driver_data = NULL;
+    TlsSetValue( thread_data_tls_index, NULL );
     CloseHandle( handle );
 }
 

dlls/x11drv/event.c

@@ -276,7 +276,7 @@ DWORD X11DRV_MsgWaitForMultipleObjectsEx( DWORD count, const HANDLE *handles,
 {
     HANDLE new_handles[MAXIMUM_WAIT_OBJECTS+1];  /* FIXME! */
     DWORD i, ret;
-    struct x11drv_thread_data *data = NtCurrentTeb()->driver_data;
+    struct x11drv_thread_data *data = TlsGetValue( thread_data_tls_index );
 
     if (!data || data->process_event_count)
         return WaitForMultipleObjectsEx( count, handles, flags & MWMO_WAITALL,

dlls/x11drv/init.c

@@ -25,6 +25,7 @@
 
 #include "windef.h"
 #include "winbase.h"
+#include "winreg.h"
 #include "x11drv.h"
 #include "x11font.h"
 #include "ddrawi.h"

dlls/x11drv/x11drv.h

@@ -63,7 +63,6 @@ typedef int Status;
 #include "wingdi.h"
 #include "winuser.h"
 #include "ddrawi.h"
-#include "thread.h"
 #include "wine/list.h"
 
 #define MAX_PIXELFORMATS 8
@@ -517,10 +516,11 @@ struct x11drv_thread_data
 };
 
 extern struct x11drv_thread_data *x11drv_init_thread_data(void);
+extern DWORD thread_data_tls_index;
 
 inline static struct x11drv_thread_data *x11drv_thread_data(void)
 {
-    struct x11drv_thread_data *data = NtCurrentTeb()->driver_data;
+    struct x11drv_thread_data *data = TlsGetValue( thread_data_tls_index );
     if (!data) data = x11drv_init_thread_data();
     return data;
 }

dlls/x11drv/x11drv_main.c

@@ -81,6 +81,7 @@ int client_side_with_render = 1;
 int client_side_antialias_with_core = 1;
 int client_side_antialias_with_render = 1;
 int using_wine_desktop = 0;
+DWORD thread_data_tls_index = TLS_OUT_OF_INDEXES;
 
 static BOOL synchronous;  /* run in synchronous mode? */
 static BOOL desktop_dbl_buf = TRUE;
@@ -315,6 +316,8 @@ static BOOL process_attach(void)
 
     setup_options();
 
+    if ((thread_data_tls_index = TlsAlloc()) == TLS_OUT_OF_INDEXES) return FALSE;
+
     /* Open display */
 
     if (!(display = XOpenDisplay( NULL ))) return FALSE;
@@ -393,7 +396,7 @@ static BOOL process_attach(void)
  */
 static void thread_detach(void)
 {
-    struct x11drv_thread_data *data = NtCurrentTeb()->driver_data;
+    struct x11drv_thread_data *data = TlsGetValue( thread_data_tls_index );
 
     if (data)
     {
@@ -427,6 +430,7 @@ static void process_detach(void)
     X11DRV_GDI_Finalize();
 
     DeleteCriticalSection( &X11DRV_CritSection );
+    TlsFree( thread_data_tls_index );
 }
 
 
@@ -479,7 +483,7 @@ struct x11drv_thread_data *x11drv_init_thread_data(void)
     data->grab_window = None;
     data->last_focus = 0;
     data->selection_wnd = 0;
-    NtCurrentTeb()->driver_data = data;
+    TlsSetValue( thread_data_tls_index, data );
     if (desktop_tid) AttachThreadInput( GetCurrentThreadId(), desktop_tid, TRUE );
     return data;
 }