Ge video dynamic fix for image reading fault

xtt/lib/glow/gtk/glow_draw_gtk.cpp

@@ -2893,6 +2893,11 @@ int GlowDrawGtk::image_load( char *imagefile,
   if ( *orig_im)
     gdk_pixbuf_unref( (GdkPixbuf *)*orig_im);
   *orig_im = (glow_tImImage *) gdk_pixbuf_new_from_file( imagefile, 0);
+  if ( !*orig_im) {
+    if ( im)
+      *im = 0;
+    return 0;
+  }
 
   if ( im)
     *im = (glow_tImImage *) gdk_pixbuf_copy( (GdkPixbuf *)*orig_im);

xtt/lib/glow/src/glow_growimage.cpp

@@ -232,12 +232,13 @@ int GrowImage::update()
 
   if ( date == info.st_ctime)
     return 0;
-  date = info.st_ctime;
 
   ctx->gdraw->image_load( filename, &original_image, &image);
   if ( !original_image) 
     return 0;
 
+  date = info.st_ctime;
+
   set_image_color( image, NULL);
   ctx->gdraw->image_scale( current_width, current_height,
 			   original_image, &image, &pixmap, &clip_mask);