I'm going to post my entire source code as it stands right now in the hope that someone with more experience than I can get me pointed in the right direction. I've been trying lots of different things. Feel free to use caps lock when expressing discontent with my code :')
/* * 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.MyLiveWallpaper; imports are all square. --Not included: public class MyLiveWallpaper extends GLWallpaperService implements SensorEventListener { private final Handler mHandler = new Handler(); SensorManager sm = null; private static final String TAG = "Compass"; private final Paint mPaint = new Paint(); private float mTouchX = -1; private float mTouchY = -1; public GLSurfaceView mGLSurfaceView; private float mOffset; @Override public void onCreate() { super.onCreate(); sm = (SensorManager) getSystemService(SENSOR_SERVICE); sm.registerListener(this, sm.getDefaultSensor(Sensor.TYPE_ORIENTATION) , SensorManager.SENSOR_DELAY_GAME); mGLSurfaceView = new GLSurfaceView(this); //Do I need this here? } @Override public void onDestroy() { super.onDestroy(); } @Override public Engine onCreateEngine() { return new GLEngine(); } // THE CLASS BELOW THIS WORKS IN AN ACTIVITY public class OpenGLRenderer implements GLSurfaceView.Renderer { private Square square; private float angle = 45f; public OpenGLRenderer() { // Initialize our square. square = new Square(); } /* * (non-Javadoc) * * @see * android.opengl.GLSurfaceView.Renderer#onSurfaceCreated(javax.microedition * .khronos.opengles.GL10, javax.microedition.khronos.egl.EGLConfig) */ public void onSurfaceCreated(GL10 gl, EGLConfig config) { gl.glClearColor(0.0f, 0.0f, 0.0f, 0.5f); gl.glShadeModel(GL10.GL_SMOOTH); gl.glClearDepthf(1.0f); gl.glEnable(GL10.GL_DEPTH_TEST); gl.glDepthFunc(GL10.GL_LEQUAL); gl.glHint(GL10.GL_PERSPECTIVE_CORRECTION_HINT, GL10.GL_NICEST); } /* * (non-Javadoc) * * @see * android.opengl.GLSurfaceView.Renderer#onDrawFrame(javax.microedition. * khronos.opengles.GL10) */ public void onDrawFrame(GL10 gl) { gl.glClear(GL10.GL_COLOR_BUFFER_BIT | GL10.GL_DEPTH_BUFFER_BIT); gl.glLoadIdentity(); // Translates 4 units into the screen. gl.glTranslatef(0, 0, -4); // gl.glPushMatrix(); gl.glRotatef(angle, 0.0f, 0.0f, 1.0f); gl.glColor4f(0.5f, 0.5f, 1.0f, 1.0f); square.draw(gl); gl.glPopMatrix(); angle++; } /* * (non-Javadoc) * * @see * android.opengl.GLSurfaceView.Renderer#onSurfaceChanged(javax.microedition * .khronos.opengles.GL10, int, int) */ public void onSurfaceChanged(GL10 gl, int width, int height) { gl.glViewport(0, 0, width, height); gl.glMatrixMode(GL10.GL_PROJECTION); gl.glLoadIdentity(); GLU.gluPerspective(gl, 45.0f, (float) width / (float) height, 0.1f, 100.0f); gl.glMatrixMode(GL10.GL_MODELVIEW); gl.glLoadIdentity(); } } class CubeEngine extends GLEngine { private SurfaceHolder mSurfaceHolder; private long mStartTime; private float mCenterX; private float mCenterY; private final Runnable mDrawCube = new Runnable() { public void run() { drawFrame(); //CHECK OUT drawFrame() --Am I doing things correctly there? } }; private boolean mVisible; CubeEngine() { mGLSurfaceView = new GLSurfaceView(MyLiveWallpaper.this); //The Line Above this is probably horribly incorrect. mGLSurfaceView.setRenderer(new OpenGLRenderer()); mGLSurfaceView.setRenderMode(RENDERMODE_CONTINUOUSLY); //I'm not sure this is the correct place //Should this go in OnCreate()? } @Override public void onCreate(SurfaceHolder surfaceHolder) { super.onCreate(surfaceHolder); this.mSurfaceHolder = surfaceHolder; // By default we don't get touch events, so enable them. setTouchEventsEnabled(true); } @Override public void onSurfaceChanged(SurfaceHolder holder, int format, int width, int height) { super.onSurfaceChanged(holder, format, width, height); } @Override public void onSurfaceCreated(SurfaceHolder holder) { super.onSurfaceCreated(holder); } @Override public void onSurfaceDestroyed(SurfaceHolder holder) { super.onSurfaceDestroyed(holder); } @Override public void onOffsetsChanged(float xOffset, float yOffset, float xStep, float yStep, int xPixels, int yPixels) { } /* * Store the position of the touch event so we can use it for drawing later */ @Override public void onTouchEvent(MotionEvent event) { if (event.getAction() == MotionEvent.ACTION_MOVE) { mTouchX = event.getX(); mTouchY = event.getY(); } else { mTouchX = -1; mTouchY = -1; } super.onTouchEvent(event); } void drawFrame() { final SurfaceHolder holder = getSurfaceHolder(); Canvas c = null; try { c = holder.lockCanvas(); if (c != null) { // draw something } } finally { if (c != null) holder.unlockCanvasAndPost(c); } // Reschedule the next redraw mHandler.removeCallbacks(mDrawCube); if (mVisible) { mHandler.postDelayed(mDrawCube, 1000 / 25); } } } @Override public void onAccuracyChanged(Sensor sensor, int accuracy) { } @Override public void onSensorChanged(SensorEvent event) { // TODO Auto-generated method stub Sensor mySensor = event.sensor; mValues[0] = event.values[0]; mValues[1] = event.values[1]; mValues[2] = event.values[2]; } } Thanks for any analysis! I'm extending the code found here: http://www.rbgrn.net/content/354-glsurfaceview-adapted-3d-live-wallpapers On Feb 14, 4:19 am, joshbeck <[email protected]> wrote: > I was afraid you might say that: > I've gone through and incorporated GLWallpaperService per his > instructions, but specifically I'm getting hung up here: > --QUOTE-- > In your GLEngine subclass, instantiate your Renderer, configure it and > set it using setRenderer(Renderer) and setRenderMode(int). > --/QUOTE-- > (http://www.rbgrn.net/content/354-glsurfaceview-adapted-3d-live- > wallpapers) > > Logcat is throwing a null pointer exception at line 79 in > GLWallpaperService.java which reads as follows: > ---LOGCAT ERROR-- > @Override > public void onSurfaceCreated(SurfaceHolder holder) { > Log.d(TAG, "onSurfaceCreated()"); > mGLThread.surfaceCreated(holder); <--Right Here Line 79 > super.onSurfaceCreated(holder);} > > ---END LOGCAT ERROR--- > > The following class works perfectly within an Activity for me: > --BEGIN CLASS-- > public class OpenGLRenderer implements Renderer { > //Should it be GLSurfaceView.Renderer? <-- > > private Square square; > private float angle = 45f; > public OpenGLRenderer() { > > square = new Square(); > //I have a square class that defines verts and > such. > } > > public void onSurfaceCreated(GL10 gl, EGLConfig config) { > --Clear the screen and prep it-- > } > > public void onDrawFrame(GL10 gl) { > --This function draws and rotates my object-- > } > public void onSurfaceChanged(GL10 gl, int width, int height) { > > --The code I have here also checks out in an Activity-- > } > } > > ---END CLASS--- > > -My Initial class extends GLWallpaperService --onCreate() as > follows:-- > > public void onCreate() { > GLSurfaceView mGLSurfaceView = new GLSurfaceView(this); > //I have a feeling this is misplaced. > > } > > --My subclass extends GLEngine-- > > class CubeEngine extends GLEngine { > private final Runnable mDrawCube = new Runnable() { > public void run() { > //Does Nothing ATM > } > }; > private boolean mVisible; > > CubeEngine() { > //Blank Constructor > } > > @Override > public void onCreate(SurfaceHolder surfaceHolder) { > super.onCreate(surfaceHolder); > > mGLSurfaceView.setRenderer(new OpenGLRenderer()); > //This setRenderer is what I need help with. > > // By default we don't get touch events, so enable them. > setTouchEventsEnabled(true); > } > > --I don't think I need to override the > things like onSurfaceChanged here, because > I think that my OpenGLRenderer Class > handles that, or at least it should. -- > > Thanks for being patient with me. I'll sort it all out in time I'm > sure. > Just getting an OpenGL object to work correctly in a regular Activity > was > a giant leap! > > Josh Beck > Northeast ISD > Humble Android Apprentice. > > On Feb 14, 3:03 am, Lance Nanek <[email protected]> wrote: > > > > >http://groups.google.com/group/android-developers/browse_thread/threa... > > > On Feb 14, 3:06 am, joshbeck <[email protected]> wrote: > > > > Hello all, > > > > I can construct an Activity that utilized OpenGL to draw a square, set > > > properties, and > > > make it rotate around a fixed point by implementing > > > android.opengl.GLSurfaceView,Renderer > > > and configuring: > > > > public void onSurfaceCreated(GL10 gl, EGLConfig config) {} > > > > public void onDrawFrame(GL10 gl) {} > > > > public void onSurfaceChanged(GL10 gl, int width, int height) {} > > > > -----Separately---- > > > > I can construct a live wallpaper by drawing an image (Bitmap) to a > > > Canvas > > > as specified at: > > > >http://developer.android.com/resources/samples/CubeLiveWallpaper/inde... > > > > My Question: > > > > I'm trying to figure out how to create a GLSurface and draw to it > > > within a Live Wallpaper. > > > I'm all about doing research. So, any advice is appreciated. > > > > The Simple Cube wallpaper demo Google provided was VERY helpful. > > > I think a lot of folks would like to see something along those except > > > with an OpenGL cube in mind. > > > > --Much appreciated. I'm totally new to OpenGL. > > > > Josh Beck -- You received this message because you are subscribed to the Google Groups "Android Developers" group. To post to this group, send email to [email protected] To unsubscribe from this group, send email to [email protected] For more options, visit this group at http://groups.google.com/group/android-developers?hl=en
