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.musicvis; 19 20 21 import android.service.wallpaper.WallpaperService; 22 import android.os.Bundle; 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 } 47 48 @Override onDestroy()49 public void onDestroy() { 50 super.onDestroy(); 51 destroyRenderer(); 52 } 53 destroyRenderer()54 private void destroyRenderer() { 55 if (mRenderer != null) { 56 mRenderer.stop(); 57 mRenderer = null; 58 } 59 if (mRs != null) { 60 mRs.destroy(); 61 mRs = null; 62 } 63 } 64 65 @Override onVisibilityChanged(boolean visible)66 public void onVisibilityChanged(boolean visible) { 67 super.onVisibilityChanged(visible); 68 if (mRenderer != null) { 69 if (visible) { 70 mRenderer.start(); 71 } else { 72 mRenderer.stop(); 73 } 74 } 75 } 76 77 @Override onSurfaceChanged(SurfaceHolder holder, int format, int width, int height)78 public void onSurfaceChanged(SurfaceHolder holder, int format, int width, int height) { 79 super.onSurfaceChanged(holder, format, width, height); 80 if (mRs != null) { 81 mRs.setSurface(holder, width, height); 82 } 83 if (mRenderer == null) { 84 mRenderer = createScene(width, height); 85 mRenderer.init(mRs, getResources(), isPreview()); 86 mRenderer.start(); 87 } else { 88 mRenderer.resize(width, height); 89 } 90 } 91 92 /*@Override 93 public void onTouchEvent(MotionEvent event) { 94 mRenderer.onTouchEvent(event); 95 }*/ 96 97 @Override onOffsetsChanged(float xOffset, float yOffset, float xStep, float yStep, int xPixels, int yPixels)98 public void onOffsetsChanged(float xOffset, float yOffset, 99 float xStep, float yStep, int xPixels, int yPixels) { 100 mRenderer.setOffset(xOffset, yOffset, xPixels, yPixels); 101 } 102 103 @Override onSurfaceCreated(SurfaceHolder holder)104 public void onSurfaceCreated(SurfaceHolder holder) { 105 super.onSurfaceCreated(holder); 106 107 RenderScriptGL.SurfaceConfig sc = new RenderScriptGL.SurfaceConfig(); 108 mRs = new RenderScriptGL(RenderScriptWallpaper.this, sc); 109 mRs.setPriority(RenderScript.Priority.LOW); 110 } 111 112 @Override onSurfaceDestroyed(SurfaceHolder holder)113 public void onSurfaceDestroyed(SurfaceHolder holder) { 114 super.onSurfaceDestroyed(holder); 115 destroyRenderer(); 116 } 117 118 } 119 } 120