content: /*
   * Copyright (C) 2017 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.
   */
  
  package com.android.internal.graphics;
  
  import android.animation.AnimationHandler.AnimationFrameCallbackProvider;
  import android.view.Choreographer;
  
  /**
   * Provider of timing pulse that uses SurfaceFlinger Vsync Choreographer for frame callbacks.
   *
   * @hide
   */
  public final class SfVsyncFrameCallbackProvider implements AnimationFrameCallbackProvider {
  
      private final Choreographer mChoreographer;
  
      public SfVsyncFrameCallbackProvider() {
          mChoreographer = Choreographer.getSfInstance();
      }
  
      public SfVsyncFrameCallbackProvider(Choreographer choreographer) {
          mChoreographer = choreographer;
      }
  
      @Override
      public void postFrameCallback(Choreographer.FrameCallback callback) {
          mChoreographer.postFrameCallback(callback);
      }
  
      @Override
      public void postCommitCallback(Runnable runnable) {
          mChoreographer.postCallback(Choreographer.CALLBACK_COMMIT, runnable, null);
      }
  
      @Override
      public long getFrameTime() {
          return mChoreographer.getFrameTime();
      }
  
      @Override
      public long getFrameDelay() {
          return Choreographer.getFrameDelay();
      }
  
      @Override
      public void setFrameDelay(long delay) {
          Choreographer.setFrameDelay(delay);
      }
  }