| /* |
| * Copyright (C) 2012 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.dreams.basic; |
| |
| import android.service.dreams.DreamService; |
| import android.util.Log; |
| import android.view.SurfaceHolder; |
| import android.view.SurfaceView; |
| import android.os.Handler; |
| import android.os.HandlerThread; |
| |
| /** |
| * Plays a delightful show of colors. |
| * <p> |
| * This dream performs its rendering using OpenGL on a separate rendering thread. |
| * </p> |
| */ |
| public class Colors extends DreamService implements SurfaceHolder.Callback { |
| static final String TAG = Colors.class.getSimpleName(); |
| static final boolean DEBUG = false; |
| |
| public static void LOG(String fmt, Object... args) { |
| if (!DEBUG) return; |
| Log.v(TAG, String.format(fmt, args)); |
| } |
| |
| private SurfaceView mSurfaceView; |
| |
| // The handler thread and handler on which the GL renderer is running. |
| private HandlerThread mRendererHandlerThread; |
| private Handler mRendererHandler; |
| |
| // The current GL renderer, or null if the dream is not running. |
| private ColorsGLRenderer mRenderer; |
| |
| @Override |
| public void onCreate() { |
| super.onCreate(); |
| |
| setInteractive(false); |
| |
| } |
| |
| @Override |
| public void onAttachedToWindow() { |
| super.onAttachedToWindow(); |
| setInteractive(false); |
| setFullscreen(true); |
| |
| mSurfaceView = new SurfaceView(this); |
| mSurfaceView.getHolder().addCallback(this); |
| |
| setContentView(mSurfaceView); |
| } |
| |
| @Override |
| public void surfaceCreated(SurfaceHolder holder) { |
| LOG("surfaceCreated(%s, %d, %d)", holder.getSurface(), |
| holder.getSurfaceFrame().width(), holder.getSurfaceFrame().height()); |
| |
| mRendererHandlerThread = new HandlerThread(TAG); |
| mRendererHandlerThread.start(); |
| mRendererHandler = new Handler(mRendererHandlerThread.getLooper()); |
| |
| mRendererHandler.post(new Runnable() { |
| @Override |
| public void run() { |
| if (mRenderer != null) { |
| mRenderer.stop(); |
| } |
| mRenderer = new ColorsGLRenderer(holder.getSurface(), |
| holder.getSurfaceFrame().width(), holder.getSurfaceFrame().height()); |
| mRenderer.start(); |
| } |
| }); |
| } |
| |
| @Override |
| public void surfaceChanged(SurfaceHolder holder, int format, int width, int height) { |
| LOG("surfaceChanged(%s, %d, %d, %d)", holder.getSurface(), format, width, height); |
| |
| mRendererHandler.post(new Runnable() { |
| @Override |
| public void run() { |
| if (mRenderer != null) { |
| mRenderer.setSize(width, height); |
| } |
| } |
| }); |
| } |
| |
| @Override |
| public void surfaceDestroyed(SurfaceHolder holder) { |
| LOG("surfaceDestroyed(%s)", holder.getSurface()); |
| |
| mRendererHandler.post(new Runnable() { |
| @Override |
| public void run() { |
| if (mRenderer != null) { |
| mRenderer.stop(); |
| mRenderer = null; |
| } |
| mRendererHandlerThread.quit(); |
| } |
| }); |
| |
| try { |
| mRendererHandlerThread.join(); |
| } catch (InterruptedException e) { |
| LOG("Error while waiting for renderer", e); |
| } |
| } |
| } |