+void LogicSnapshot::get_samples(uint8_t *const data,
+ int64_t start_sample, int64_t end_sample) const
+{
+ assert(data);
+ assert(start_sample >= 0);
+ assert(start_sample <= (int64_t)sample_count_);
+ assert(end_sample >= 0);
+ assert(end_sample <= (int64_t)sample_count_);
+ assert(start_sample <= end_sample);
+
+ lock_guard<recursive_mutex> lock(mutex_);
+
+ const size_t size = (end_sample - start_sample) * unit_size_;
+ memcpy(data, (const uint8_t*)data_.data() + start_sample * unit_size_, size);
+}
+
+void LogicSnapshot::reallocate_mipmap_level(MipMapLevel &m)