+/* drawing */
+
+void
+cso_set_index_buffer(struct cso_context *cso,
+ const struct pipe_index_buffer *ib);
+
+void
+cso_draw_vbo(struct cso_context *cso,
+ const struct pipe_draw_info *info);
+
+/* helper drawing function */
+void
+cso_draw_arrays(struct cso_context *cso, uint mode, uint start, uint count);