+void
+svga_create_stream_output_queries(struct svga_context *svga);
+
+void
+svga_destroy_stream_output_queries(struct svga_context *svga);
+
+void
+svga_begin_stream_output_queries(struct svga_context *svga, unsigned mask);
+
+void
+svga_end_stream_output_queries(struct svga_context *svga, unsigned mask);
+
+unsigned
+svga_get_primcount_from_stream_output(struct svga_context *svga,
+ unsigned stream);
+