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-rw-r--r--gst/cairo/gstcairotestsrc.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/gst/cairo/gstcairotestsrc.c b/gst/cairo/gstcairotestsrc.c
index 6284167..ed98b01 100644
--- a/gst/cairo/gstcairotestsrc.c
+++ b/gst/cairo/gstcairotestsrc.c
@@ -360,6 +360,7 @@ create_alpha_map (guint w, guint h)
}
data += stride;
}
+ cairo_surface_mark_dirty (surface);
return surface;
}