/**
* gdk_win32_display_add_filter:
* @display: a #GdkWin32Display
* @function: filter callback
* @data: data to pass to filter callback
*
* Adds an event filter to @window, allowing you to intercept messages
* before they reach GDK. This is a low-level operation and makes it
* easy to break GDK and/or GTK+, so you have to know what you're
* doing.
**/
void
gdk_win32_display_add_filter (GdkWin32Display *display,
GdkWin32MessageFilterFunc function,
gpointer data)
{
GList *tmp_list;
GdkWin32MessageFilter *filter;
g_return_if_fail (GDK_IS_WIN32_DISPLAY (display));
tmp_list = display->filters;
for (tmp_list = display->filters; tmp_list; tmp_list = tmp_list->next)
{
filter = (GdkWin32MessageFilter *) tmp_list->data;
if ((filter->function == function) && (filter->data == data))
{
filter->ref_count++;
return;
}
}
filter = g_new (GdkWin32MessageFilter, 1);
filter->function = function;
filter->data = data;
filter->ref_count = 1;
filter->removed = FALSE;
display->filters = g_list_append (display->filters, filter);
}
static GdkScreen *
gdk_win32_display_get_default_screen (GdkDisplay *display)
{
g_return_val_if_fail (GDK_IS_WIN32_DISPLAY (display), NULL);
return GDK_WIN32_DISPLAY (display)->screen;
}
/**
* gdk_win32_display_remove_filter:
* @display: A #GdkWin32Display
* @function: previously-added filter function
* @data: user data for previously-added filter function
*
* Remove a filter previously added with gdk_win32_display_add_filter().
*/
void
gdk_win32_display_remove_filter (GdkWin32Display *display,
GdkWin32MessageFilterFunc function,
gpointer data)
{
GList *tmp_list;
GdkWin32MessageFilter *filter;
g_return_if_fail (GDK_IS_WIN32_DISPLAY (display));
tmp_list = display->filters;
while (tmp_list)
{
filter = (GdkWin32MessageFilter *) tmp_list->data;
tmp_list = tmp_list->next;
if ((filter->function == function) && (filter->data == data))
{
filter->removed = TRUE;
_gdk_win32_message_filter_unref (display, filter);
return;
}
}
}
static void *get_proc_address(void *fn_ctx, const gchar *name)
{
GdkDisplay *display = gdk_display_get_default();
#ifdef GDK_WINDOWING_WAYLAND
if (GDK_IS_WAYLAND_DISPLAY(display))
return eglGetProcAddress(name);
#endif
#ifdef GDK_WINDOWING_X11
if (GDK_IS_X11_DISPLAY(display))
return (void *)(intptr_t)glXGetProcAddressARB((const GLubyte *)name);
#endif
#ifdef GDK_WINDOWING_WIN32
if (GDK_IS_WIN32_DISPLAY(display))
return wglGetProcAddress(name);
#endif
g_assert_not_reached();
}
static CoglRenderer *
clutter_backend_gdk_get_renderer (ClutterBackend *backend,
GError **error)
{
ClutterBackendGdk *backend_gdk = CLUTTER_BACKEND_GDK (backend);
CoglRenderer *renderer = cogl_renderer_new ();
#if defined(GDK_WINDOWING_X11) && defined(COGL_HAS_XLIB_SUPPORT)
if (GDK_IS_X11_DISPLAY (backend_gdk->display))
{
Display *xdisplay = gdk_x11_display_get_xdisplay (backend_gdk->display);
cogl_xlib_renderer_set_foreign_display (renderer, xdisplay);
}
else
#endif
#if defined(GDK_WINDOWING_WIN32)
if (GDK_IS_WIN32_DISPLAY (backend_gdk->display))
{
/* Force a WGL winsys on windows */
cogl_renderer_set_winsys_id (renderer, COGL_WINSYS_ID_WGL);
}
else
#endif
{
g_set_error (error, CLUTTER_INIT_ERROR,
CLUTTER_INIT_ERROR_BACKEND,
_("Could not find a suitable CoglWinsys for a GdkDisplay of type %s"),
G_OBJECT_TYPE_NAME (backend_gdk->display));
cogl_object_unref (renderer);
return NULL;
}
return renderer;
}
