diff --git a/compositor/FlatteningController.h b/compositor/FlatteningController.h
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+++ b/compositor/FlatteningController.h
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+/*
+ * Copyright (C) 2023 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#pragma once
+
+#include <chrono>
+#include <condition_variable>
+#include <functional>
+#include <thread>
+
+namespace android {
+
+// NOLINTNEXTLINE(misc-unused-using-decls): False positive
+using std::chrono_literals::operator""s;
+
+struct FlatConCallbacks {
+  std::function<void()> trigger;
+};
+
+class FlatteningController {
+ public:
+  static auto CreateInstance(FlatConCallbacks &cbks)
+      -> std::shared_ptr<FlatteningController>;
+
+  void Disable() {
+    auto lock = std::lock_guard<std::mutex>(mutex_);
+    flatten_next_frame_ = false;
+    disabled_ = true;
+  }
+
+  /* Compositor should call this every frame */
+  bool NewFrame();
+
+  auto ShouldFlatten() const {
+    return flatten_next_frame_;
+  }
+
+  void StopThread() {
+    auto lock = std::lock_guard<std::mutex>(mutex_);
+    cbks_ = {};
+    cv_.notify_all();
+  }
+
+  static constexpr auto kTimeout = 1s;
+
+ private:
+  FlatteningController() = default;
+  static void ThreadFn(const std::shared_ptr<FlatteningController> &fc);
+
+  bool flatten_next_frame_{};
+  bool disabled_{};
+  decltype(std::chrono::system_clock::now()) sleep_until_{};
+  std::mutex mutex_;
+  std::condition_variable cv_;
+  FlatConCallbacks cbks_;
+};
+
+}  // namespace android