Alexandre Julliard : winex11: Retrieve raw mouse events through XInput2 while the cursor is clipped.

[Alexandre Julliard]

Module: wine
Branch: master
Commit: bd3ec1a973fef5ff46a6242aa4e04dd4b7a40799
URL:    http://source.winehq.org/git/wine.git/?a=commit;h=bd3ec1a973fef5ff46a6242aa4...

Author: Alexandre Julliard <julliard(a)winehq.org>
Date:   Wed Apr 13 20:18:30 2011 +0200

winex11: Retrieve raw mouse events through XInput2 while the cursor is clipped.

---

 dlls/winex11.drv/event.c       |    2 +-
 dlls/winex11.drv/mouse.c       |  178 +++++++++++++++++++++++++++++++++++++++-
 dlls/winex11.drv/x11drv.h      |    3 +
 dlls/winex11.drv/x11drv_main.c |    1 +
 4 files changed, 179 insertions(+), 5 deletions(-)

diff --git a/dlls/winex11.drv/event.c b/dlls/winex11.drv/event.c
index d3ed4b0..62aea5e 100644
--- a/dlls/winex11.drv/event.c
+++ b/dlls/winex11.drv/event.c
@@ -795,7 +795,7 @@ static void X11DRV_MapNotify( HWND hwnd, XEvent *event )
  */
 static void X11DRV_UnmapNotify( HWND hwnd, XEvent *event )
 {
-    if (event->xany.window == clip_window) clipping_cursor = 0;
+    if (event->xany.window == clip_window) clipping_window_unmapped();
 }
 
 
diff --git a/dlls/winex11.drv/mouse.c b/dlls/winex11.drv/mouse.c
index e3774dc..a1c913f 100644
--- a/dlls/winex11.drv/mouse.c
+++ b/dlls/winex11.drv/mouse.c
@@ -128,6 +128,17 @@ static XContext cursor_context;
 static RECT clip_rect;
 static Cursor create_cursor( HANDLE handle );
 
+#ifdef HAVE_X11_EXTENSIONS_XINPUT2_H
+static BOOL xinput2_available;
+static int xinput2_opcode;
+static int xinput2_core_pointer;
+#define MAKE_FUNCPTR(f) static typeof(f) * p##f
+MAKE_FUNCPTR(XIFreeDeviceInfo);
+MAKE_FUNCPTR(XIQueryDevice);
+MAKE_FUNCPTR(XIQueryVersion);
+MAKE_FUNCPTR(XISelectEvents);
+#undef MAKE_FUNCPTR
+#endif
 
 /***********************************************************************
  *		X11DRV_Xcursor_Init
@@ -239,6 +250,124 @@ void sync_window_cursor( Window window )
 }
 
 /***********************************************************************
+ *              enable_xinput2
+ */
+static void enable_xinput2(void)
+{
+#ifdef HAVE_X11_EXTENSIONS_XINPUT2_H
+    struct x11drv_thread_data *data = x11drv_thread_data();
+    XIDeviceInfo *devices;
+    XIEventMask mask;
+    unsigned char mask_bits[XIMaskLen(XI_LASTEVENT)];
+    int i, count;
+
+    if (!xinput2_available) return;
+
+    if (data->xi2_state == xi_unknown)
+    {
+        int major = 2, minor = 0;
+        wine_tsx11_lock();
+        if (!pXIQueryVersion( data->display, &major, &minor )) data->xi2_state = xi_disabled;
+        else
+        {
+            data->xi2_state = xi_unavailable;
+            WARN( "X Input 2 not available\n" );
+        }
+        wine_tsx11_unlock();
+    }
+    if (data->xi2_state == xi_unavailable) return;
+
+    wine_tsx11_lock();
+    devices = pXIQueryDevice( data->display, XIAllDevices, &count );
+    for (i = 0; i < count; ++i)
+    {
+        if (devices[i].use != XIMasterPointer) continue;
+        TRACE( "Using %u (%s) as core pointer\n",
+               devices[i].deviceid, debugstr_a(devices[i].name) );
+        xinput2_core_pointer = devices[i].deviceid;
+        break;
+    }
+
+    mask.mask     = mask_bits;
+    mask.mask_len = sizeof(mask_bits);
+    memset( mask_bits, 0, sizeof(mask_bits) );
+
+    XISetMask( mask_bits, XI_RawButtonPress );
+    XISetMask( mask_bits, XI_RawButtonRelease );
+    XISetMask( mask_bits, XI_RawMotion );
+
+    for (i = 0; i < count; ++i)
+    {
+        if (devices[i].use == XISlavePointer && devices[i].attachment == xinput2_core_pointer)
+        {
+            TRACE( "Device %u (%s) is attached to the core pointer\n",
+                   devices[i].deviceid, debugstr_a(devices[i].name) );
+            mask.deviceid = devices[i].deviceid;
+            pXISelectEvents( data->display, DefaultRootWindow( data->display ), &mask, 1 );
+            data->xi2_state = xi_enabled;
+        }
+    }
+
+    pXIFreeDeviceInfo( devices );
+    wine_tsx11_unlock();
+#endif
+}
+
+/***********************************************************************
+ *              disable_xinput2
+ */
+static void disable_xinput2(void)
+{
+#ifdef HAVE_X11_EXTENSIONS_XINPUT2_H
+    struct x11drv_thread_data *data = x11drv_thread_data();
+    XIEventMask mask;
+    XIDeviceInfo *devices;
+    int i, count;
+
+    if (data->xi2_state != xi_enabled) return;
+
+    TRACE( "disabling\n" );
+    data->xi2_state = xi_disabled;
+
+    mask.mask = NULL;
+    mask.mask_len = 0;
+
+    wine_tsx11_lock();
+    devices = pXIQueryDevice( data->display, XIAllDevices, &count );
+    for (i = 0; i < count; ++i)
+    {
+        if (devices[i].use == XISlavePointer && devices[i].attachment == xinput2_core_pointer)
+        {
+            mask.deviceid = devices[i].deviceid;
+            pXISelectEvents( data->display, DefaultRootWindow( data->display ), &mask, 1 );
+        }
+    }
+    pXIFreeDeviceInfo( devices );
+    wine_tsx11_unlock();
+#endif
+}
+
+/***********************************************************************
+ *		clipping_window_unmapped
+ *
+ * Turn off clipping when the window got unmapped.
+ */
+void clipping_window_unmapped(void)
+{
+    struct x11drv_thread_data *data = x11drv_thread_data();
+
+    clipping_cursor = 0;
+    if (data->xi2_state == xi_enabled)
+    {
+        RECT rect;
+        GetClipCursor( &rect );
+        if (EqualRect( &rect, &clip_rect )) return;  /* still clipped */
+        disable_xinput2();
+    }
+}
+
+
+/***********************************************************************
  *		send_mouse_input
  *
  * Update the various window states on a mouse event.
@@ -254,7 +383,7 @@ static void send_mouse_input( HWND hwnd, Window window, unsigned int state, INPU
     {
         input->u.mi.dx += clip_rect.left;
         input->u.mi.dy += clip_rect.top;
-        __wine_send_input( hwnd, input );
+        if (x11drv_thread_data()->xi2_state != xi_enabled) __wine_send_input( hwnd, input );
         return;
     }
 
@@ -913,14 +1042,16 @@ void CDECL X11DRV_SetCursor( HCURSOR handle )
  */
 BOOL CDECL X11DRV_SetCursorPos( INT x, INT y )
 {
-    Display *display = thread_init_display();
+    struct x11drv_thread_data *data = x11drv_init_thread_data();
+
+    if (data->xi2_state == xi_enabled) return TRUE;
 
     TRACE( "warping to (%d,%d)\n", x, y );
 
     wine_tsx11_lock();
-    XWarpPointer( display, root_window, root_window, 0, 0, 0, 0,
+    XWarpPointer( data->display, root_window, root_window, 0, 0, 0, 0,
                   x - virtual_screen_rect.left, y - virtual_screen_rect.top );
-    XFlush( display ); /* avoids bad mouse lag in games that do their own mouse warping */
+    XFlush( data->display ); /* avoids bad mouse lag in games that do their own mouse warping */
     wine_tsx11_unlock();
     return TRUE;
 }
@@ -983,6 +1114,7 @@ BOOL CDECL X11DRV_ClipCursor( LPCRECT clip )
 
             if (clipping_cursor)
             {
+                enable_xinput2();
                 sync_window_cursor( clip_window );
                 clip_rect = *clip;
                 return TRUE;
@@ -996,6 +1128,7 @@ BOOL CDECL X11DRV_ClipCursor( LPCRECT clip )
     XUnmapWindow( display, clip_window );
     wine_tsx11_unlock();
     clipping_cursor = 0;
+    disable_xinput2();
     return TRUE;
 }
 
@@ -1175,6 +1308,42 @@ static void X11DRV_RawMotion( XIRawEvent *event )
 
 
 /***********************************************************************
+ *              X11DRV_XInput2_Init
+ */
+void X11DRV_XInput2_Init(void)
+{
+#if defined(SONAME_LIBXI) && defined(HAVE_X11_EXTENSIONS_XINPUT2_H)
+    int event, error;
+    void *libxi_handle = wine_dlopen( SONAME_LIBXI, RTLD_NOW, NULL, 0 );
+
+    if (!libxi_handle)
+    {
+        WARN( "couldn't load %s\n", SONAME_LIBXI );
+        return;
+    }
+#define LOAD_FUNCPTR(f) \
+    if (!(p##f = wine_dlsym( libxi_handle, #f, NULL, 0))) \
+    { \
+        WARN("Failed to load %s.\n", #f); \
+        return; \
+    }
+
+    LOAD_FUNCPTR(XIFreeDeviceInfo);
+    LOAD_FUNCPTR(XIQueryDevice);
+    LOAD_FUNCPTR(XIQueryVersion);
+    LOAD_FUNCPTR(XISelectEvents);
+#undef LOAD_FUNCPTR
+
+    wine_tsx11_lock();
+    xinput2_available = XQueryExtension( gdi_display, "XInputExtension", &xinput2_opcode, &event, &error );
+    wine_tsx11_unlock();
+#else
+    TRACE( "X Input 2 support not compiled in.\n" );
+#endif
+}
+
+
+/***********************************************************************
  *           X11DRV_GenericEvent
  */
 void X11DRV_GenericEvent( HWND hwnd, XEvent *xev )
@@ -1183,6 +1352,7 @@ void X11DRV_GenericEvent( HWND hwnd, XEvent *xev )
     XGenericEventCookie *event = &xev->xcookie;
 
     if (!event->data) return;
+    if (event->extension != xinput2_opcode) return;
 
     switch (event->evtype)
     {
diff --git a/dlls/winex11.drv/x11drv.h b/dlls/winex11.drv/x11drv.h
index ae91fc9..8d05e27 100644
--- a/dlls/winex11.drv/x11drv.h
+++ b/dlls/winex11.drv/x11drv.h
@@ -258,6 +258,7 @@ extern void X11DRV_OpenGL_Cleanup(void);
 extern void X11DRV_Xcursor_Init(void);
 extern void X11DRV_BITMAP_Init(void);
 extern void X11DRV_FONT_Init( int log_pixels_x, int log_pixels_y );
+extern void X11DRV_XInput2_Init(void);
 
 extern int bitmap_info_size( const BITMAPINFO * info, WORD coloruse );
 extern XImage *X11DRV_DIB_CreateXImage( int width, int height, int depth );
@@ -550,6 +551,7 @@ struct x11drv_thread_data
     XFontSet font_set;             /* international text drawing font set */
     Window   selection_wnd;        /* window used for selection interactions */
     HKL      kbd_layout;           /* active keyboard layout */
+    enum { xi_unavailable = -1, xi_unknown, xi_disabled, xi_enabled } xi2_state; /* XInput2 state */
 };
 
 extern struct x11drv_thread_data *x11drv_init_thread_data(void);
@@ -823,6 +825,7 @@ extern void X11DRV_ResetSelectionOwner(void);
 extern void CDECL X11DRV_SetFocus( HWND hwnd );
 extern void set_window_cursor( Window window, HCURSOR handle );
 extern void sync_window_cursor( Window window );
+extern void clipping_window_unmapped(void);
 extern BOOL CDECL X11DRV_ClipCursor( LPCRECT clip );
 extern void X11DRV_InitKeyboard( Display *display );
 extern DWORD CDECL X11DRV_MsgWaitForMultipleObjectsEx( DWORD count, const HANDLE *handles, DWORD timeout,
diff --git a/dlls/winex11.drv/x11drv_main.c b/dlls/winex11.drv/x11drv_main.c
index 9ac20c3..cb6d793 100644
--- a/dlls/winex11.drv/x11drv_main.c
+++ b/dlls/winex11.drv/x11drv_main.c
@@ -595,6 +595,7 @@ static BOOL process_attach(void)
 #ifdef SONAME_LIBXCOMPOSITE
     X11DRV_XComposite_Init();
 #endif
+    X11DRV_XInput2_Init();
 
 #ifdef HAVE_XKB
     if (use_xkb) use_xkb = XkbUseExtension( gdi_display, NULL, NULL );