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/*
* Copyright (C) 2009 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.magicsmoke;
import android.service.wallpaper.WallpaperService;
import android.os.Bundle;
import android.graphics.PixelFormat;
import android.renderscript.RenderScriptGL;
import android.renderscript.RenderScript;
import android.util.Log;
import android.view.MotionEvent;
import android.view.SurfaceHolder;
import android.view.Surface;
public abstract class RenderScriptWallpaper<T extends RenderScriptScene> extends WallpaperService {
public Engine onCreateEngine() {
return new RenderScriptEngine();
}
protected abstract T createScene(int width, int height);
private class RenderScriptEngine extends Engine {
private RenderScriptGL mRs;
private T mRenderer;
@Override
public void onCreate(SurfaceHolder surfaceHolder) {
super.onCreate(surfaceHolder);
setTouchEventsEnabled(false);
surfaceHolder.setSizeFromLayout();
surfaceHolder.setFormat(PixelFormat.RGBX_8888);
}
@Override
public void onDestroy() {
super.onDestroy();
destroyRenderer();
}
private void destroyRenderer() {
if (mRenderer != null) {
mRenderer.stop();
mRenderer = null;
}
if (mRs != null) {
mRs.destroy();
mRs = null;
}
}
@Override
public void onVisibilityChanged(boolean visible) {
super.onVisibilityChanged(visible);
if (mRenderer != null) {
if (visible) {
mRenderer.start();
} else {
mRenderer.stop();
}
}
}
@Override
public void onSurfaceChanged(SurfaceHolder holder, int format, int width, int height) {
super.onSurfaceChanged(holder, format, width, height);
if (mRs != null) {
mRs.contextSetSurface(width, height, holder.getSurface());
}
if (mRenderer == null) {
mRenderer = createScene(width, height);
mRenderer.init(mRs, getResources(), isPreview());
mRenderer.start();
} else {
mRenderer.resize(width, height);
}
}
/*@Override
public void onTouchEvent(MotionEvent event) {
mRenderer.onTouchEvent(event);
}*/
@Override
public void onOffsetsChanged(float xOffset, float yOffset,
float xStep, float yStep, int xPixels, int yPixels) {
mRenderer.setOffset(xOffset, yOffset, xPixels, yPixels);
}
@Override
public void onSurfaceCreated(SurfaceHolder holder) {
super.onSurfaceCreated(holder);
Surface surface = null;
while (surface == null) {
surface = holder.getSurface();
}
RenderScriptGL.SurfaceConfig sc = new RenderScriptGL.SurfaceConfig();
mRs = new RenderScriptGL(sc);
mRs.contextSetPriority(RenderScript.Priority.LOW);
}
@Override
public void onSurfaceDestroyed(SurfaceHolder holder) {
super.onSurfaceDestroyed(holder);
destroyRenderer();
}
@Override
public Bundle onCommand(String action, int x, int y, int z,
Bundle extras, boolean resultRequested) {
return mRenderer.onCommand(action, x, y, z, extras, resultRequested);
}
}
}
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