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/*
* 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.graphics.SurfaceTexture;
import android.service.dreams.DreamService;
import android.util.Log;
import android.view.TextureView;
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 TextureView.SurfaceTextureListener {
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 TextureView mTextureView;
// 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);
mTextureView = new TextureView(this);
mTextureView.setSurfaceTextureListener(this);
if (mRendererHandlerThread == null) {
mRendererHandlerThread = new HandlerThread(TAG);
mRendererHandlerThread.start();
mRendererHandler = new Handler(mRendererHandlerThread.getLooper());
}
}
@Override
public void onAttachedToWindow() {
setInteractive(false);
setLowProfile(true);
setFullscreen(true);
setContentView(mTextureView);
}
@Override
public void onSurfaceTextureAvailable(final SurfaceTexture surface,
final int width, final int height) {
LOG("onSurfaceTextureAvailable(%s, %d, %d)", surface, width, height);
mRendererHandler.post(new Runnable() {
@Override
public void run() {
if (mRenderer != null) {
mRenderer.stop();
}
mRenderer = new ColorsGLRenderer(surface, width, height);
mRenderer.start();
}
});
}
@Override
public void onSurfaceTextureSizeChanged(SurfaceTexture surface,
final int width, final int height) {
LOG("onSurfaceTextureSizeChanged(%s, %d, %d)", surface, width, height);
mRendererHandler.post(new Runnable() {
@Override
public void run() {
if (mRenderer != null) {
mRenderer.setSize(width, height);
}
}
});
}
@Override
public boolean onSurfaceTextureDestroyed(SurfaceTexture surface) {
LOG("onSurfaceTextureDestroyed(%s)", surface);
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);
}
return true;
}
@Override
public void onSurfaceTextureUpdated(SurfaceTexture surface) {
LOG("onSurfaceTextureUpdated(%s)", surface);
}
}
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