init

runtime/include/runtime_product.h

@@ -0,0 +1,26 @@
+#pragma once
+
+#include <string_view>
+
+namespace RuntimeProduct {
+
+enum class Kind {
+    BaseGame,
+    RetroRewind,
+};
+
+struct Descriptor {
+    Kind kind;
+    std::string_view displayName;
+};
+
+// Each public executable links exactly one small provider definition. Keeping
+// this selection out of target-wide preprocessor definitions lets the native
+// runtime be compiled once and shared by every product.
+const Descriptor& Active() noexcept;
+
+inline bool IsRetroRewind() noexcept {
+    return Active().kind == Kind::RetroRewind;
+}
+
+} // namespace RuntimeProduct