+void rgb888_to_rgb565(void *dst, const void *src, int bytes);
+
+void bgr_to_uyvy_init(void);
+void rgb565_to_uyvy(void *d, const void *s, int pixels);
+void bgr555_to_uyvy(void *d, const void *s, int pixels);
+void bgr888_to_uyvy(void *d, const void *s, int pixels);