check if using a PBuffer in clip_for_xgetimage()

diff --git a/src/mesa/drivers/x11/xm_span.c b/src/mesa/drivers/x11/xm_span.c
index 3ebca32..5945544 100644 (file)
--- a/src/mesa/drivers/x11/xm_span.c
+++ b/src/mesa/drivers/x11/xm_span.c
@@ -1,8 +1,8 @@
 /*
  * Mesa 3-D graphics library
- * Version:  5.1
+ * Version:  6.3
  *
- * Copyright (C) 1999-2003  Brian Paul   All Rights Reserved.
+ * Copyright (C) 1999-2004  Brian Paul   All Rights Reserved.
  *
  * Permission is hereby granted, free of charge, to any person obtaining a
  * copy of this software and associated documentation files (the "Software"),
@@ -3473,6 +3473,8 @@ clip_for_xgetimage(XMesaContext xmesa, GLuint *n, GLint *x, GLint *y)
    Window child;
    GLint screenWidth = WidthOfScreen(DefaultScreenOfDisplay(xmesa->display));
    GLint dx, dy;
+   if (source->type == PBUFFER)
+      return 0;
    XTranslateCoordinates(xmesa->display, source->buffer, rootWin,
                          *x, *y, &dx, &dy, &child);
    if (dx >= screenWidth) {