+#ifdef PIPE_OS_WINDOWS
+ /* Multithreading not supported on windows until conditions and barriers are
+ * properly implemented. */
+ screen->num_threads = 0;
+#else
+#ifdef PIPE_OS_EMBEDDED
+ screen->num_threads = 0;
+#else
+ screen->num_threads = util_cpu_caps.nr_cpus;
+#endif
+ screen->num_threads = debug_get_num_option("LP_NUM_THREADS", screen->num_threads);
+ screen->num_threads = MIN2(screen->num_threads, LP_MAX_THREADS);
+#endif
+
+ util_format_s3tc_init();
+