1 /* 2 * Copyright (C) 2010 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 package com.android.wallpaper.holospiral; 18 19 import android.graphics.PixelFormat; 20 import android.os.Bundle; 21 import android.os.Handler; 22 import android.os.Message; 23 import android.renderscript.RenderScript; 24 import android.renderscript.RenderScriptGL; 25 import android.service.wallpaper.WallpaperService; 26 import android.view.Surface; 27 import android.view.SurfaceHolder; 28 29 public class HoloSpiralWallpaper extends WallpaperService { 30 31 @Override onCreateEngine()32 public Engine onCreateEngine() { 33 return new RenderScriptEngine(); 34 } 35 36 private class RenderScriptEngine extends Engine { 37 private RenderScriptGL mRenderScript = null; 38 private HoloSpiralRS mWallpaperRS = null; 39 40 @Override onCreate(SurfaceHolder surfaceHolder)41 public void onCreate(SurfaceHolder surfaceHolder) { 42 super.onCreate(surfaceHolder); 43 setTouchEventsEnabled(true); 44 surfaceHolder.setSizeFromLayout(); 45 surfaceHolder.setFormat(PixelFormat.RGBA_8888); 46 } 47 48 @Override onDestroy()49 public void onDestroy() { 50 super.onDestroy(); 51 destroyRenderer(); 52 } 53 destroyRenderer()54 public void destroyRenderer() { 55 if (mWallpaperRS != null) { 56 mWallpaperRS.stop(); 57 mWallpaperRS = null; 58 } 59 60 if (mRenderScript != null) { 61 mRenderScript.setSurface(null, 0, 0); 62 mRenderScript.destroy(); 63 mRenderScript = null; 64 } 65 } 66 67 @Override onSurfaceCreated(SurfaceHolder surfaceHolder)68 public void onSurfaceCreated(SurfaceHolder surfaceHolder) { 69 super.onSurfaceCreated(surfaceHolder); 70 71 RenderScriptGL.SurfaceConfig sc = new RenderScriptGL.SurfaceConfig(); 72 mRenderScript = new RenderScriptGL(HoloSpiralWallpaper.this, sc); 73 mRenderScript.setPriority(RenderScript.Priority.LOW); 74 } 75 76 @Override onSurfaceDestroyed(SurfaceHolder surfaceHolder)77 public void onSurfaceDestroyed(SurfaceHolder surfaceHolder) { 78 super.onSurfaceDestroyed(surfaceHolder); 79 destroyRenderer(); 80 } 81 82 @Override onSurfaceChanged(SurfaceHolder surfaceHolder, int format, int width, int height)83 public void onSurfaceChanged(SurfaceHolder surfaceHolder, int format, 84 int width, int height) { 85 super.onSurfaceChanged(surfaceHolder, format, width, height); 86 87 if (mRenderScript != null) { 88 mRenderScript.setSurface(surfaceHolder, width, height); 89 } 90 91 if (mWallpaperRS == null) { 92 mWallpaperRS = new HoloSpiralRS(mRenderScript, getResources()); 93 mWallpaperRS.start(); 94 } 95 96 mWallpaperRS.resize(width, height); 97 } 98 99 @Override onCommand(String action, int x, int y, int z, Bundle extras, boolean resultRequested)100 public Bundle onCommand(String action, int x, int y, int z, Bundle extras, 101 boolean resultRequested) { 102 if (mWallpaperRS != null) { 103 return mWallpaperRS.onCommand(action, x, y, z, extras, resultRequested); 104 } 105 return null; 106 } 107 108 @Override onVisibilityChanged(boolean visible)109 public void onVisibilityChanged(boolean visible) { 110 super.onVisibilityChanged(visible); 111 if (mWallpaperRS != null) { 112 if (visible) { 113 mWallpaperRS.start(); 114 } else { 115 mWallpaperRS.stop(); 116 } 117 } 118 } 119 120 @Override onOffsetsChanged(float xOffset, float yOffset, float xOffsetStep, float yOffsetStep, int xPixelOffset, int yPixelOffset)121 public void onOffsetsChanged(float xOffset, float yOffset, float xOffsetStep, 122 float yOffsetStep, int xPixelOffset, int yPixelOffset) { 123 mWallpaperRS.setOffset(xOffset, yOffset, xPixelOffset, yPixelOffset); 124 } 125 } 126 } 127