+ float min_length, int sig_index);
+
+private:
+
+ static inline int64_t pow2_ceil(int64_t x, int power);
+
+private:
+ struct MipMapLevel _mip_map[ScaleStepCount];
+ uint64_t _last_append_sample;
+
+ friend class LogicDataSnapshotTest::Basic;
+ friend class LogicDataSnapshotTest::LargeData;