content: /*
   * Copyright (C) 2011 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 android.filterfw.core;
  
  import android.annotation.UnsupportedAppUsage;
  import android.filterfw.core.Frame;
  import android.filterfw.core.FrameFormat;
  import android.filterfw.core.MutableFrameFormat;
  
  /**
   * @hide
   */
  public abstract class FrameManager {
  
      private FilterContext mContext;
  
      @UnsupportedAppUsage
      public abstract Frame newFrame(FrameFormat format);
  
      @UnsupportedAppUsage
      public abstract Frame newBoundFrame(FrameFormat format, int bindingType, long bindingId);
  
      @UnsupportedAppUsage
      public Frame duplicateFrame(Frame frame) {
          Frame result = newFrame(frame.getFormat());
          result.setDataFromFrame(frame);
          return result;
      }
  
      public Frame duplicateFrameToTarget(Frame frame, int newTarget) {
          MutableFrameFormat newFormat = frame.getFormat().mutableCopy();
          newFormat.setTarget(newTarget);
          Frame result = newFrame(newFormat);
          result.setDataFromFrame(frame);
          return result;
      }
  
      public abstract Frame retainFrame(Frame frame);
  
      public abstract Frame releaseFrame(Frame frame);
  
      public FilterContext getContext() {
          return mContext;
      }
  
      public GLEnvironment getGLEnvironment() {
          return mContext != null ? mContext.getGLEnvironment() : null;
      }
  
      public void tearDown() {
      }
  
      void setContext(FilterContext context) {
          mContext = context;
      }
  }
  