--- /dev/null
+#ifndef _EVAS_SWAPPER_H
+# define _EVAS_SWAPPER_H
+
+#include "evas_engine.h"
+
+typedef struct _Wl_Swapper Wl_Swapper;
+
+Wl_Swapper *evas_swapper_setup(int w, int h, Outbuf_Depth depth, Eina_Bool alpha, struct wl_shm *shm, struct wl_surface *surface);
+void evas_swapper_swap(Wl_Swapper *ws, Eina_Rectangle *rects, unsigned int count);
+void evas_swapper_free(Wl_Swapper *ws);
+void *evas_swapper_buffer_map(Wl_Swapper *ws);
+void evas_swapper_buffer_unmap(Wl_Swapper *ws);
+int evas_swapper_buffer_state_get(Wl_Swapper *ws);
+
+#endif