| /* |
| * Copyright (C) 2014 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.media.cts; |
| |
| import java.util.concurrent.Semaphore; |
| import java.util.concurrent.TimeUnit; |
| |
| import android.content.Context; |
| import android.graphics.SurfaceTexture; |
| import android.util.AttributeSet; |
| import android.util.Log; |
| import android.view.Surface; |
| import android.view.TextureView; |
| |
| public class CompositionTextureView extends TextureView |
| implements TextureView.SurfaceTextureListener { |
| private static final String TAG = "CompositionTextureView"; |
| private static final boolean DBG = true; |
| private static final boolean DBG_VERBOSE = false; |
| |
| private final Semaphore mInitWaitSemaphore = new Semaphore(0); |
| private Surface mSurface; |
| |
| public CompositionTextureView(Context context) { |
| super(context); |
| if (DBG) { |
| Log.i(TAG, "CompositionTextureView"); |
| } |
| } |
| |
| public CompositionTextureView(Context context, AttributeSet attrs) { |
| super(context, attrs); |
| if (DBG) { |
| Log.i(TAG, "CompositionTextureView"); |
| } |
| } |
| |
| public CompositionTextureView(Context context, AttributeSet attrs, int defStyle) { |
| super(context, attrs, defStyle); |
| if (DBG) { |
| Log.i(TAG, "CompositionTextureView"); |
| } |
| } |
| |
| public void startListening() { |
| if (DBG) { |
| Log.i(TAG, "startListening"); |
| } |
| setSurfaceTextureListener(this); |
| } |
| |
| @Override |
| public void onSurfaceTextureAvailable(SurfaceTexture arg0, int arg1, int arg2) { |
| if (DBG) { |
| Log.i(TAG, "onSurfaceTextureAvailable"); |
| } |
| recreateSurface(arg0); |
| mInitWaitSemaphore.release(); |
| } |
| |
| @Override |
| public boolean onSurfaceTextureDestroyed(SurfaceTexture arg0) { |
| if (DBG) { |
| Log.i(TAG, "onSurfaceTextureDestroyed"); |
| } |
| return true; |
| } |
| |
| @Override |
| public void onSurfaceTextureSizeChanged(SurfaceTexture arg0, int arg1, int arg2) { |
| if (DBG) { |
| Log.i(TAG, "onSurfaceTextureSizeChanged"); |
| } |
| recreateSurface(arg0); |
| mInitWaitSemaphore.release(); |
| } |
| |
| @Override |
| public void onSurfaceTextureUpdated(SurfaceTexture arg0) { |
| if (DBG_VERBOSE) { |
| Log.i(TAG, "onSurfaceTextureUpdated"); |
| } |
| //ignore |
| } |
| |
| public boolean waitForSurfaceReady(long timeoutMs) throws Exception { |
| if (isSurfaceTextureAvailable()) { |
| return true; |
| } |
| if (mInitWaitSemaphore.tryAcquire(timeoutMs, TimeUnit.MILLISECONDS)) { |
| return true; |
| } |
| return isSurfaceTextureAvailable(); |
| } |
| |
| private boolean isSurfaceTextureAvailable() { |
| SurfaceTexture surfaceTexture = getSurfaceTexture(); |
| if (mSurface == null && surfaceTexture != null) { |
| recreateSurface(surfaceTexture); |
| } |
| return (mSurface != null); |
| } |
| |
| private synchronized void recreateSurface(SurfaceTexture surfaceTexture) { |
| if (mSurface != null) { |
| mSurface.release(); |
| } |
| mSurface = new Surface(surfaceTexture); |
| } |
| |
| public Surface getSurface() { |
| return mSurface; |
| } |
| |
| } |