1 /* 2 * Copyright (C) 2009 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 18 package com.android.magicsmoke; 19 20 import android.service.wallpaper.WallpaperService; 21 import android.os.Bundle; 22 import android.graphics.PixelFormat; 23 import android.renderscript.RenderScriptGL; 24 import android.renderscript.RenderScript; 25 import android.util.Log; 26 import android.view.MotionEvent; 27 import android.view.SurfaceHolder; 28 import android.view.Surface; 29 30 public abstract class RenderScriptWallpaper<T extends RenderScriptScene> extends WallpaperService { onCreateEngine()31 public Engine onCreateEngine() { 32 return new RenderScriptEngine(); 33 } 34 createScene(int width, int height)35 protected abstract T createScene(int width, int height); 36 37 private class RenderScriptEngine extends Engine { 38 private RenderScriptGL mRs; 39 private T mRenderer; 40 41 @Override onCreate(SurfaceHolder surfaceHolder)42 public void onCreate(SurfaceHolder surfaceHolder) { 43 super.onCreate(surfaceHolder); 44 setTouchEventsEnabled(false); 45 surfaceHolder.setSizeFromLayout(); 46 surfaceHolder.setFormat(PixelFormat.RGB_565); 47 } 48 49 @Override onDestroy()50 public void onDestroy() { 51 super.onDestroy(); 52 destroyRenderer(); 53 } 54 destroyRenderer()55 private void destroyRenderer() { 56 if (mRenderer != null) { 57 mRenderer.stop(true); 58 mRenderer = null; 59 } 60 if (mRs != null) { 61 mRs.destroy(); 62 mRs = null; 63 } 64 } 65 66 @Override onVisibilityChanged(boolean visible)67 public void onVisibilityChanged(boolean visible) { 68 super.onVisibilityChanged(visible); 69 if (mRenderer != null) { 70 if (visible) { 71 mRenderer.start(); 72 } else { 73 mRenderer.stop(false); 74 } 75 } 76 } 77 78 @Override onSurfaceChanged(SurfaceHolder holder, int format, int width, int height)79 public void onSurfaceChanged(SurfaceHolder holder, int format, int width, int height) { 80 super.onSurfaceChanged(holder, format, width, height); 81 if (mRs != null) { 82 mRs.setSurface(holder, width, height); 83 } 84 if (mRenderer == null) { 85 mRenderer = createScene(width, height); 86 mRenderer.init(mRs, getResources(), isPreview()); 87 mRenderer.start(); 88 } else { 89 mRenderer.resize(width, height); 90 } 91 } 92 93 @Override onOffsetsChanged(float xOffset, float yOffset, float xStep, float yStep, int xPixels, int yPixels)94 public void onOffsetsChanged(float xOffset, float yOffset, 95 float xStep, float yStep, int xPixels, int yPixels) { 96 mRenderer.setOffset(xOffset, yOffset, xStep, yStep, xPixels, yPixels); 97 } 98 99 @Override onSurfaceCreated(SurfaceHolder holder)100 public void onSurfaceCreated(SurfaceHolder holder) { 101 super.onSurfaceCreated(holder); 102 103 RenderScriptGL.SurfaceConfig sc = new RenderScriptGL.SurfaceConfig(); 104 mRs = new RenderScriptGL(RenderScriptWallpaper.this, sc); 105 mRs.setPriority(RenderScript.Priority.LOW); 106 } 107 108 @Override onSurfaceDestroyed(SurfaceHolder holder)109 public void onSurfaceDestroyed(SurfaceHolder holder) { 110 super.onSurfaceDestroyed(holder); 111 destroyRenderer(); 112 } 113 114 @Override onCommand(String action, int x, int y, int z, Bundle extras, boolean resultRequested)115 public Bundle onCommand(String action, int x, int y, int z, 116 Bundle extras, boolean resultRequested) { 117 return mRenderer.onCommand(action, x, y, z, extras, resultRequested); 118 } 119 120 } 121 } 122