(Feat): Initial Commit.

include/timing.h

@@ -0,0 +1,38 @@
+/**
+ * @file timing.h
+ * @brief High-precision timing utilities
+ * @author ASCII3D Project
+ * @version 1.0.0
+ */
+
+#ifndef ASCII3D_TIMING_H
+#define ASCII3D_TIMING_H
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/**
+ * @brief Get current time in seconds (monotonic clock)
+ * @return Time in seconds with nanosecond precision
+ */
+double timing_get_seconds(void);
+
+/**
+ * @brief Sleep for specified microseconds
+ * @param microseconds Duration to sleep
+ */
+void timing_sleep_us(unsigned int microseconds);
+
+/**
+ * @brief Frame rate limiter - sleeps to maintain target FPS
+ * @param frame_start_time Time when frame started (from timing_get_seconds)
+ * @param target_fps Target frames per second
+ */
+void timing_limit_fps(double frame_start_time, int target_fps);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* ASCII3D_TIMING_H */