From fddeb54248883d5fb1f77eb2fb1827edaf591b23 Mon Sep 17 00:00:00 2001
From: gb <gb@5584edef-b1fe-4b99-b61b-dd2bab72e969>
Date: Thu, 25 Mar 2010 17:18:36 +0000
Subject: [PATCH] Add gst_vaapi_window_x11_is_foreign_xid() helper.

---
 gst-libs/gst/vaapi/gstvaapiwindow_x11.c | 17 +++++++++++++++++
 gst-libs/gst/vaapi/gstvaapiwindow_x11.h |  3 +++
 2 files changed, 20 insertions(+)

diff --git a/gst-libs/gst/vaapi/gstvaapiwindow_x11.c b/gst-libs/gst/vaapi/gstvaapiwindow_x11.c
index 213e7255e4..3ced139cb0 100644
--- a/gst-libs/gst/vaapi/gstvaapiwindow_x11.c
+++ b/gst-libs/gst/vaapi/gstvaapiwindow_x11.c
@@ -564,3 +564,20 @@ gst_vaapi_window_x11_get_xid(GstVaapiWindowX11 *window)
 
     return GST_VAAPI_OBJECT_ID(window);
 }
+
+/**
+ * gst_vaapi_window_x11_is_foreign_xid:
+ * @window: a #GstVaapiWindowX11
+ *
+ * Checks whether the @window XID was created by gst_vaapi_window_x11_new() or bound with gst_vaapi_window_x11_new_with_xid().
+ *
+ * Return value: %TRUE if the underlying X window is owned by the
+ *   caller (foreign window)
+ */
+gboolean
+gst_vaapi_window_x11_is_foreign_xid(GstVaapiWindowX11 *window)
+{
+    g_return_val_if_fail(GST_VAAPI_IS_WINDOW_X11(window), FALSE);
+
+    return !window->priv->create_window;
+}
diff --git a/gst-libs/gst/vaapi/gstvaapiwindow_x11.h b/gst-libs/gst/vaapi/gstvaapiwindow_x11.h
index cf3da5dafa..424200f861 100644
--- a/gst-libs/gst/vaapi/gstvaapiwindow_x11.h
+++ b/gst-libs/gst/vaapi/gstvaapiwindow_x11.h
@@ -105,6 +105,9 @@ gst_vaapi_window_x11_new_with_xid(GstVaapiDisplay *display, Window xid);
 Window
 gst_vaapi_window_x11_get_xid(GstVaapiWindowX11 *window);
 
+gboolean
+gst_vaapi_window_x11_is_foreign_xid(GstVaapiWindowX11 *window);
+
 G_END_DECLS
 
 #endif /* GST_VAAPI_WINDOW_X11_H */