--- /dev/null
+#include <stdio.h>
+#include <stdlib.h>
+#include <glib.h>
+#include <gtk/gtk.h>
+#include "pixman.h"
+
+void show_image (pixman_image_t *image);
+
+pixman_image_t *
+pixman_image_from_file (const char *filename, pixman_format_code_t format);
+
+GdkPixbuf *pixbuf_from_argb32 (uint32_t *bits,
+ int width,
+ int height,
+ int stride);