SSE2/AVX dynamic support + progress (#195)

src/crypto/cpu_features.h

@@ -0,0 +1,22 @@
+/* This file is a part of the UMSKT Project.
+ *
+ * Copyleft (C) 2019-2026 UMSKT Contributors (et.al.)
+ * SPDX-License-Identifier: AGPL-3.0-or-later
+ */
+
+#ifndef UMSKT_CPU_FEATURES_H
+#define UMSKT_CPU_FEATURES_H
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+void umskt_cpu_init(void);
+int umskt_cpu_has_sse2(void);
+int umskt_cpu_has_avx2(void);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif