add screensaver and optimize performance

Signed-off-by: Peter Siegmund <developer@mars3142.org>

components/insa/include/common/InactivityTracker.h

@@ -0,0 +1,20 @@
+#pragma once
+
+#include <cstdint>
+#include <functional>
+
+class InactivityTracker
+{
+  public:
+    InactivityTracker(uint64_t timeoutMs, std::function<void()> onTimeout);
+
+    void update(uint64_t dt);
+    void reset();
+    void setEnabled(bool enabled);
+
+  private:
+    uint64_t m_timeoutMs;
+    uint64_t m_elapsedTime;
+    bool m_enabled;
+    std::function<void()> m_onTimeout;
+};