Home | History | Annotate | Download | only in holospiral 
      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
     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
     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
     49         public void onDestroy() {
     50             super.onDestroy();
     51             destroyRenderer();
     52         }
     53 
     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
     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
     77         public void onSurfaceDestroyed(SurfaceHolder surfaceHolder) {
     78             super.onSurfaceDestroyed(surfaceHolder);
     79             destroyRenderer();
     80         }
     81 
     82         @Override
     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
    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
    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
    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