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.NativeAllocatorTag;
  import android.graphics.SurfaceTexture;
  import android.os.Looper;
  import android.util.Log;
  import android.view.Surface;
  import android.media.MediaRecorder;
  
  /**
   * @hide
   */
  public class GLEnvironment {
  
      private int glEnvId;
  
      private boolean mManageContext = true;
  
      public GLEnvironment() {
          nativeAllocate();
      }
  
      private GLEnvironment(NativeAllocatorTag tag) {
      }
  
      public synchronized void tearDown() {
          if (glEnvId != -1) {
              nativeDeallocate();
              glEnvId = -1;
          }
      }
  
      @Override
      protected void finalize() throws Throwable {
          tearDown();
      }
  
      public void initWithNewContext() {
          mManageContext = true;
          if (!nativeInitWithNewContext()) {
              throw new RuntimeException("Could not initialize GLEnvironment with new context!");
          }
      }
  
      public void initWithCurrentContext() {
          mManageContext = false;
          if (!nativeInitWithCurrentContext()) {
              throw new RuntimeException("Could not initialize GLEnvironment with current context!");
          }
      }
  
      @UnsupportedAppUsage
      public boolean isActive() {
          return nativeIsActive();
      }
  
      public boolean isContextActive() {
          return nativeIsContextActive();
      }
  
      public static boolean isAnyContextActive() {
          return nativeIsAnyContextActive();
      }
  
      @UnsupportedAppUsage
      public void activate() {
          if (Looper.myLooper() != null && Looper.myLooper().equals(Looper.getMainLooper())) {
              Log.e("FilterFramework", "Activating GL context in UI thread!");
          }
          if (mManageContext && !nativeActivate()) {
              throw new RuntimeException("Could not activate GLEnvironment!");
          }
      }
  
      @UnsupportedAppUsage
      public void deactivate() {
          if (mManageContext && !nativeDeactivate()) {
              throw new RuntimeException("Could not deactivate GLEnvironment!");
          }
      }
  
      @UnsupportedAppUsage
      public void swapBuffers() {
          if (!nativeSwapBuffers()) {
              throw new RuntimeException("Error swapping EGL buffers!");
          }
      }
  
      public int registerSurface(Surface surface) {
          int result = nativeAddSurface(surface);
          if (result < 0) {
              throw new RuntimeException("Error registering surface " + surface + "!");
          }
          return result;
      }
  
      public int registerSurfaceTexture(SurfaceTexture surfaceTexture, int width, int height) {
          Surface surface = new Surface(surfaceTexture);
          int result = nativeAddSurfaceWidthHeight(surface, width, height);
          surface.release();
          if (result < 0) {
              throw new RuntimeException("Error registering surfaceTexture " + surfaceTexture + "!");
          }
          return result;
      }
  
      @UnsupportedAppUsage
      public int registerSurfaceFromMediaRecorder(MediaRecorder mediaRecorder) {
          int result = nativeAddSurfaceFromMediaRecorder(mediaRecorder);
          if (result < 0) {
              throw new RuntimeException("Error registering surface from "
                                      + "MediaRecorder" + mediaRecorder + "!");
          }
          return result;
      }
  
      @UnsupportedAppUsage
      public void activateSurfaceWithId(int surfaceId) {
          if (!nativeActivateSurfaceId(surfaceId)) {
              throw new RuntimeException("Could not activate surface " + surfaceId + "!");
          }
      }
  
      @UnsupportedAppUsage
      public void unregisterSurfaceId(int surfaceId) {
          if (!nativeRemoveSurfaceId(surfaceId)) {
              throw new RuntimeException("Could not unregister surface " + surfaceId + "!");
          }
      }
  
      @UnsupportedAppUsage
      public void setSurfaceTimestamp(long timestamp) {
          if (!nativeSetSurfaceTimestamp(timestamp)) {
              throw new RuntimeException("Could not set timestamp for current surface!");
          }
      }
  
      static {
          System.loadLibrary("filterfw");
      }
  
      private native boolean nativeInitWithNewContext();
  
      private native boolean nativeInitWithCurrentContext();
  
      private native boolean nativeIsActive();
  
      private native boolean nativeIsContextActive();
  
      private static native boolean nativeIsAnyContextActive();
  
      private native boolean nativeActivate();
  
      private native boolean nativeDeactivate();
  
      private native boolean nativeSwapBuffers();
  
      private native boolean nativeAllocate();
  
      private native boolean nativeDeallocate();
  
      private native int nativeAddSurface(Surface surface);
  
      private native int nativeAddSurfaceWidthHeight(Surface surface, int width, int height);
  
      private native int nativeAddSurfaceFromMediaRecorder(MediaRecorder mediaRecorder);
  
      private native boolean  nativeDisconnectSurfaceMediaSource(MediaRecorder mediaRecorder);
  
      private native boolean nativeActivateSurfaceId(int surfaceId);
  
      private native boolean nativeRemoveSurfaceId(int surfaceId);
  
      private native boolean nativeSetSurfaceTimestamp(long timestamp);
  }
  