vsync_waiter_embedder.h

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// Copyright 2013 The Flutter Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
 
#ifndef FLUTTER_SHELL_PLATFORM_EMBEDDER_VSYNC_WAITER_EMBEDDER_H_
#define FLUTTER_SHELL_PLATFORM_EMBEDDER_VSYNC_WAITER_EMBEDDER_H_
 
#include "flutter/fml/macros.h"
#include "flutter/shell/common/vsync_waiter.h"
 
namespace flutter {
 
class VsyncWaiterEmbedder final : public VsyncWaiter {
 public:
  using VsyncCallback = std::function<void(intptr_t)>;
 
  VsyncWaiterEmbedder(const VsyncCallback& callback,
                      const flutter::TaskRunners& task_runners);
 
  ~VsyncWaiterEmbedder() override;
 
  static bool OnEmbedderVsync(const flutter::TaskRunners& task_runners,
                              intptr_t baton,
                              fml::TimePoint frame_start_time,
                              fml::TimePoint frame_target_time);
 
 private:
  const VsyncCallback vsync_callback_;
 
  // |VsyncWaiter|
  void AwaitVSync() override;
 
  FML_DISALLOW_COPY_AND_ASSIGN(VsyncWaiterEmbedder);
};
 
}  // namespace flutter
 
#endif  // FLUTTER_SHELL_PLATFORM_EMBEDDER_VSYNC_WAITER_EMBEDDER_H_