Android 3D壁纸开发设计
希望能给需要得人一点帮助，这个触屏可以改变壁纸映射，
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这个是主类
package com.android.first3Dlive;
import android.content.Context;
import android.content.res.Resources;
import android.graphics.Bitmap;
import android.graphics.BitmapFactory;
import android.view.MotionEvent;
public class First3DLive extends GLWallpaperService{
private GLRender1 mRender;
public Engine onCreateEngine(){
if(mRender == null){
mRender = new GLRender1();
}
return new First3DLiveEngine(this);
}
class First3DLiveEngine extends GLWallpaperService.GLEngine{
public First3DLiveEngine(Context context){
setRenderer(mRender);
GLImage.load(context.getResources());
setRenderMode(RENDERMODE_CONTINUOUSLY);
}
public void onTouchEvent(MotionEvent event){
mRender.onTouchEvent(event);
}
}
}
class GLImage
{
public static Bitmap mt[] = new Bitmap[6];
//public static Bitmap mBitmap=null;
public static void load(Resources resources)
{
// mBitmap = BitmapFactory.decodeResource(resources, R.drawable.antking1);
mt[0] = BitmapFactory.decodeResource(resources, R.drawable.antking);
mt[1] = BitmapFactory.decodeResource(resources, R.drawable.antking1);
mt[2] = BitmapFactory.decodeResource(resources, R.drawable.antking2);
mt[3] = BitmapFactory.decodeResource(resources, R.drawable.antking3);
mt[4] = BitmapFactory.decodeResource(resources, R.drawable.antking4);
mt[5] = BitmapFactory.decodeResource(resources, R.drawable.xiaofei);
}
}
package com.android.first3Dlive;
import java.nio.ByteBuffer;
import java.nio.ByteOrder;
import java.nio.FloatBuffer;
import java.nio.IntBuffer;
import javax.microedition.khronos.egl.EGLConfig;
import javax.microedition.khronos.opengles.GL10;
import android.opengl.GLU;
import android.opengl.GLUtils;
import android.view.MotionEvent;
public class GLRender1 implements GLWallpaperService.Renderer
{
private final IntBuffer mVertexBuffer;
private final IntBuffer nBuffer;
float xrot, yrot, zrot;
int[] texture;
int i=0;
boolean key= true;
int one =0x10000;
public GLRender1(){
int texCoord[]={
one,0,0,0,0,one,one,one,
0,0,0,one,one,one,one,0,
one,one,one,0,0,0,0,one,
0,one,one,one,one,0,0,0,
0,0,0,one,one,one,one,0,
one,0,0,0,0,one,one,one,
};
int vertices[]={
-one,-one,one,
one,-one,one,
one,one,one,
-one,one,one,
-one,-one,-one,
-one,one,-one,
one,one,-one,
one,-one,-one,
-one,one,-one,
-one,one,one,
one,one,one,
one,one,-one,
-one,-one,-one,
one,-one,-one,
one,-one,one,
-one,-one,one,
one,-one,-one,
one,one,-one,
one,one,one,
one,-one,one,
-one,-one,-one,
-one,-one,one,
-one,one,one,
-one,one,-one,
};
ByteBuffer vbb = ByteBuffer.allocateDirect(vertices.length * 4);
vbb.order(ByteOrder.nativeOrder());
mVertexBuffer = vbb.asIntBuffer();
mVertexBuffer.put(vertices);
mVertexBuffer.position(0);
ByteBuffer v = ByteBuffer.allocateDirect(texCoord.length *4);
v.order(ByteOrder.nativeOrder());
nBuffer = v.asIntBuffer();
nBuffer.put(texCoord);
nBuffer.position(0);
}
ByteBuffer indices = ByteBuffer.wrap(new byte[]{
0,1,3,2,
4,5,7,6,
8,9,11,10,
12,13,15,14,
16,17,19,18,
20,21,23,22,
});
@Override
public void onDrawFrame(GL10 gl)
{
// 清除屏幕和深度缓存
gl.glClear(GL10.GL_COLOR_BUFFER_BIT | GL10.GL_DEPTH_BUFFER_BIT);
// 重置当前的模型观察矩阵
gl.glLoadIdentity();
//gl.glEnable(GL10.GL_LIGHTING);
gl.glTranslatef(0.0f, 0.0f, -5.0f);
//设置3个方向的旋转
gl.glRotatef(xrot, 1.0f, 0.0f, 0.0f);
gl.glRotatef(yrot, 0.0f, 1.0f, 0.0f);
gl.glRotatef(zrot, 0.0f, 0.0f, 1.0f);
// 绑定纹理
gl.glBindTexture(GL10.GL_TEXTURE_2D, texture[i]);
gl.glEnableClientState(GL10.GL_VERTEX_ARRAY);
gl.glEnableClientState(GL10.GL_TEXTURE_COORD_ARRAY);
//纹理和四边形对应的顶点
//gl.glTexCoordPointer(2, GL10.GL_FIXED, 0, nBuffer);
gl.glVertexPointer(3, GL10.GL_FIXED, 0, mVertexBuffer);
gl.glTexCoordPointer(2, GL10.GL_FIXED, 0, nBuffer);
//绘制
//for(int i=0;i<6;i++){
// gl.glDrawArrays(GL10.GL_TRIANGLE_STRIP,i*4, 4);
//}
gl.glDrawElements(GL10.GL_TRIANGLE_STRIP, 24, GL10.GL_UNSIGNED_BYTE, indices);
gl.glDisableClientState(GL10.GL_TEXTURE_COORD_ARRAY);
gl.glDisableClientState(GL10.GL_VERTEX_ARRAY);
xrot+=0.3f;
yrot+=0.6f;
zrot+=0.4f;
//if(key){
// gl.glEnable(GL10.GL_BLEND);
// gl.glDisable(GL10.GL_DEPTH_TEST);
//}else{
//gl.glDisable(GL10.GL_BLEND);
//gl.glEnable(GL10.GL_DEPTH_TEST);
//}
}
@Override
public void onSurfaceChanged(GL10 gl, int width, int height)
{
float ratio = (float) width /height;
//设置OpenGL场景的大小
gl.glViewport(-100,-100,width+200, height+200);
//设置投影矩阵
gl.glMatrixMode(GL10.GL_PROJECTION);
//重置投影矩阵
gl.glLoadIdentity();
// 设置视口的大小
gl.glFrustumf(-ratio, ratio, -1, 1, 1, 10);
// 选择模型观察矩阵
gl.glMatrixMode(GL10.GL_MODELVIEW);
// 重置模型观察矩阵
gl.glLoadIdentity();
}
@Override
public void onSurfaceCreated(GL10 gl, EGLConfig config)
{
// 黑色背景
gl.glClearColor(0.4f, 0.6f, 0.5f, 0.3f);
gl.glEnable(GL10.GL_CULL_FACE);
// 启用阴影平滑
gl.glShadeModel(GL10.GL_SMOOTH);
// 启用深度测试
gl.glEnable(GL10.GL_DEPTH_TEST);
//启用纹理映射
gl.glClearDepthf(1.0f);
//深度测试的类型
gl.glDepthFunc(GL10.GL_LEQUAL);
//精细的透视修正
gl.glHint(GL10.GL_PERSPECTIVE_CORRECTION_HINT, GL10.GL_NICEST);
float lightAmbient[] = new float[] { 0.2f, 0.2f, 0.2f, 1 };
float lightDiffuse[] = new float[] { 1, 1, 1, 1 };
float[] lightPos = new float[] { 1, 1, 1, 1 };
gl.glEnable(GL10.GL_LIGHTING);
gl.glEnable(GL10.GL_LIGHT0);
gl.glLightfv(GL10.GL_LIGHT0, GL10.GL_AMBIENT, lightAmbient, 0);
gl.glLightfv(GL10.GL_LIGHT0, GL10.GL_DIFFUSE, lightDiffuse, 0);
gl.glLightfv(GL10.GL_LIGHT0, GL10.GL_POSITION, lightPos, 0);
// 立方体的材质，这可以决定光照在它上面的效果 漫反射还是镜面反射。 58 59
float matAmbient[] = new float[] { 1, 1, 1, 1 };
float matDiffuse[] = new float[] { 1, 1, 1, 1 };
gl.glMaterialfv(GL10.GL_FRONT_AND_BACK, GL10.GL_AMBIENT, matAmbient, 0);
gl.glMaterialfv(GL10.GL_FRONT_AND_BACK, GL10.GL_DIFFUSE, matDiffuse, 0);
// 设置我们需要的各种参数 69
//允许2D贴图,纹理
gl.glEnable(GL10.GL_TEXTURE_2D);
IntBuffer intBuffer = IntBuffer.allocate(6);
// 创建纹理
gl.glGenTextures(6, intBuffer);
//loadTexture(gl,context);
texture = intBuffer.array();
// 设置要使用的纹理
gl.glBindTexture(GL10.GL_TEXTURE_2D, texture[0]);
GLUtils.texImage2D(GL10.GL_TEXTURE_2D, 0,GLImage.mt[0], 0);
gl.glTexParameterx(GL10.GL_TEXTURE_2D, GL10.GL_TEXTURE_MIN_FILTER, GL10.GL_LINEAR);
gl.glTexParameterx(GL10.GL_TEXTURE_2D, GL10.GL_TEXTURE_MAG_FILTER, GL10.GL_LINEAR);
gl.glBindTexture(GL10.GL_TEXTURE_2D, texture[1]);
GLUtils.texImage2D(GL10.GL_TEXTURE_2D, 0,GLImage.mt[1], 0);
gl.glTexParameterx(GL10.GL_TEXTURE_2D, GL10.GL_TEXTURE_MIN_FILTER, GL10.GL_LINEAR);
gl.glTexParameterx(GL10.GL_TEXTURE_2D, GL10.GL_TEXTURE_MAG_FILTER, GL10.GL_LINEAR);
gl.glBindTexture(GL10.GL_TEXTURE_2D, texture[2]);
GLUtils.texImage2D(GL10.GL_TEXTURE_2D, 0,GLImage.mt[2], 0);
gl.glTexParameterx(GL10.GL_TEXTURE_2D, GL10.GL_TEXTURE_MIN_FILTER, GL10.GL_LINEAR);
gl.glTexParameterx(GL10.GL_TEXTURE_2D, GL10.GL_TEXTURE_MAG_FILTER, GL10.GL_LINEAR);
gl.glBindTexture(GL10.GL_TEXTURE_2D, texture[3]);
GLUtils.texImage2D(GL10.GL_TEXTURE_2D, 0,GLImage.mt[3], 0);
gl.glTexParameterx(GL10.GL_TEXTURE_2D, GL10.GL_TEXTURE_MIN_FILTER, GL10.GL_LINEAR);
gl.glTexParameterx(GL10.GL_TEXTURE_2D, GL10.GL_TEXTURE_MAG_FILTER, GL10.GL_LINEAR);
gl.glBindTexture(GL10.GL_TEXTURE_2D, texture[4]);
GLUtils.texImage2D(GL10.GL_TEXTURE_2D, 0,GLImage.mt[4], 0);
gl.glTexParameterx(GL10.GL_TEXTURE_2D, GL10.GL_TEXTURE_MIN_FILTER, GL10.GL_LINEAR);
gl.glTexParameterx(GL10.GL_TEXTURE_2D, GL10.GL_TEXTURE_MAG_FILTER, GL10.GL_LINEAR);
gl.glBindTexture(GL10.GL_TEXTURE_2D, texture[5]);
GLUtils.texImage2D(GL10.GL_TEXTURE_2D, 0,GLImage.mt[5], 0);
gl.glTexParameterx(GL10.GL_TEXTURE_2D, GL10.GL_TEXTURE_MIN_FILTER, GL10.GL_LINEAR);
gl.glTexParameterx(GL10.GL_TEXTURE_2D, GL10.GL_TEXTURE_MAG_FILTER, GL10.GL_LINEAR);
gl.glEnable(GL10.GL_LIGHT0);
}public boolean onTouchEvent(MotionEvent event){
if(event.getAction()==event.ACTION_UP){
i++;
if(i>=6){
i=0;
}
}
if(event.getAction()==event.ACTION_MOVE){
key=!key;
}
return false;
}
}
package com.android.first3Dlive;
import java.io.Writer;
import java.util.ArrayList;
import javax.microedition.khronos.egl.EGL10;
import javax.microedition.khronos.egl.EGL11;
import javax.microedition.khronos.egl.EGLConfig;
import javax.microedition.khronos.egl.EGLContext;
import javax.microedition.khronos.egl.EGLDisplay;
import javax.microedition.khronos.egl.EGLSurface;
import javax.microedition.khronos.opengles.GL;
import javax.microedition.khronos.opengles.GL10;
import com.android.first3Dlive.BaseConfigChooser.ComponentSizeChooser;
import com.android.first3Dlive.BaseConfigChooser.SimpleEGLConfigChooser;
import android.service.wallpaper.WallpaperService;
import android.util.Log;
import android.view.SurfaceHolder;
// Original code provided by Robert Green
// http://www.rbgrn.net/content/354-glsurfaceview-adapted-3d-live-wallpapers
public class GLWallpaperService extends WallpaperService {
private static final String TAG = "GLWallpaperService";
@Override
public Engine onCreateEngine() {
return new GLEngine();
}
public class GLEngine extends Engine {
public final static int RENDERMODE_WHEN_DIRTY = 0;
public final static int RENDERMODE_CONTINUOUSLY = 1;
private GLThread mGLThread;
private EGLConfigChooser mEGLConfigChooser;
private EGLContextFactory mEGLContextFactory;
private EGLWindowSurfaceFactory mEGLWindowSurfaceFactory;
private GLWrapper mGLWrapper;
private int mDebugFlags;
public GLEngine() {
super();
}
@Override
public void onVisibilityChanged(boolean visible) {
if (visible) {
onResume();
} else {
onPause();
}
super.onVisibilityChanged(visible);
}
@Override
public void onCreate(SurfaceHolder surfaceHolder) {
super.onCreate(surfaceHolder);
// Log.d(TAG, "GLEngine.onCreate()");
}
@Override
public void onDestroy() {
super.onDestroy();
// Log.d(TAG, "GLEngine.onDestroy()");
mGLThread.requestExitAndWait();
}
@Override
public void onSurfaceChanged(android.view.SurfaceHolder holder, int format, int width, int height) {
// Log.d(TAG, "onSurfaceChanged()");
mGLThread.onWindowResize(width, height);
super.onSurfaceChanged(holder, format, width, height);
}
@Override
public void onSurfaceCreated(SurfaceHolder holder) {
Log.d(TAG, "onSurfaceCreated()");
mGLThread.surfaceCreated(holder);
super.onSurfaceCreated(holder);
}
@Override
public void onSurfaceDestroyed(SurfaceHolder holder) {
Log.d(TAG, "onSurfaceDestroyed()");
mGLThread.surfaceDestroyed();
super.onSurfaceDestroyed(holder);
}
/**
* An EGL helper class.
*/
public void setGLWrapper(GLWrapper glWrapper) {
mGLWrapper = glWrapper;
}
public void setDebugFlags(int debugFlags) {
mDebugFlags = debugFlags;
}
public int getDebugFlags() {
return mDebugFlags;
}
public void setRenderer(Renderer renderer) {
checkRenderThreadState();
if (mEGLConfigChooser == null) {
mEGLConfigChooser = new SimpleEGLConfigChooser(true);
}
if (mEGLContextFactory == null) {
mEGLContextFactory = new DefaultContextFactory();
}
if (mEGLWindowSurfaceFactory == null) {
mEGLWindowSurfaceFactory = new DefaultWindowSurfaceFactory();
}
mGLThread = new GLThread(renderer, mEGLConfigChooser, mEGLContextFactory, mEGLWindowSurfaceFactory, mGLWrapper);
mGLThread.start();
}
public void setEGLContextFactory(EGLContextFactory factory) {
checkRenderThreadState();
mEGLContextFactory = factory;
}
public void setEGLWindowSurfaceFactory(EGLWindowSurfaceFactory factory) {
checkRenderThreadState();
mEGLWindowSurfaceFactory = factory;
}
public void setEGLConfigChooser(EGLConfigChooser configChooser) {
checkRenderThreadState();
mEGLConfigChooser = configChooser;
}
public void setEGLConfigChooser(boolean needDepth) {
setEGLConfigChooser(new SimpleEGLConfigChooser(needDepth));
}
public void setEGLConfigChooser(int redSize, int greenSize, int blueSize, int alphaSize, int depthSize,
int stencilSize) {
setEGLConfigChooser(new ComponentSizeChooser(redSize, greenSize, blueSize, alphaSize, depthSize,
stencilSize));
}
public void setRenderMode(int renderMode) {
mGLThread.setRenderMode(renderMode);
}
public int getRenderMode() {
return mGLThread.getRenderMode();
}
public void requestRender() {
mGLThread.requestRender();
}
public void onPause() {
mGLThread.onPause();
}
public void onResume() {
mGLThread.onResume();
}
public void queueEvent(Runnable r) {
mGLThread.queueEvent(r);
}
private void checkRenderThreadState() {
if (mGLThread != null) {
throw new IllegalStateException("setRenderer has already been called for this instance.");
}
}
}
public interface Renderer {
public void onSurfaceCreated(GL10 gl, EGLConfig config);
public void onSurfaceChanged(GL10 gl, int width, int height);
public void onDrawFrame(GL10 gl);
}
}
class LogWriter extends Writer {
private StringBuilder mBuilder = new StringBuilder();
@Override
public void close() {
flushBuilder();
}
@Override
public void flush() {
flushBuilder();
}
@Override
public void write(char[] buf, int offset, int count) {
for (int i = 0; i < count; i++) {
char c = buf[offset + i];
if (c == '\n') {
flushBuilder();
} else {
mBuilder.append(c);
}
}
}
private void flushBuilder() {
if (mBuilder.length() > 0) {
Log.v("GLSurfaceView", mBuilder.toString());
mBuilder.delete(0, mBuilder.length());
}
}
}
// ----------------------------------------------------------------------
/**
* An interface for customizing the eglCreateContext and eglDestroyContext calls.
*
* This interface must be implemented by clients wishing to call
* {@link GLWallpaperService#setEGLContextFactory(EGLContextFactory)}
*/
interface EGLContextFactory {
EGLContext createContext(EGL10 egl, EGLDisplay display, EGLConfig eglConfig);
void destroyContext(EGL10 egl, EGLDisplay display, EGLContext context);
}
class DefaultContextFactory implements EGLContextFactory {
public EGLContext createContext(EGL10 egl, EGLDisplay display, EGLConfig config) {
return egl.eglCreateContext(display, config, EGL10.EGL_NO_CONTEXT, null);
}
public void destroyContext(EGL10 egl, EGLDisplay display, EGLContext context) {
egl.eglDestroyContext(display, context);
}
}
/**
* An interface for customizing the eglCreateWindowSurface and eglDestroySurface calls.
*
* This interface must be implemented by clients wishing to call
* {@link GLWallpaperService#setEGLWindowSurfaceFactory(EGLWindowSurfaceFactory)}
*/
interface EGLWindowSurfaceFactory {
EGLSurface createWindowSurface(EGL10 egl, EGLDisplay display, EGLConfig config, Object nativeWindow);
void destroySurface(EGL10 egl, EGLDisplay display, EGLSurface surface);
}
class DefaultWindowSurfaceFactory implements EGLWindowSurfaceFactory {
public EGLSurface createWindowSurface(EGL10 egl, EGLDisplay
display, EGLConfig config, Object nativeWindow) {
// this is a bit of a hack to work around Droid init problems - if you don't have this, it'll get hung up on orientation changes
EGLSurface eglSurface = null;
while (eglSurface == null) {
try {
eglSurface = egl.eglCreateWindowSurface(display,
config, nativeWindow, null);
} catch (Throwable t) {
} finally {
if (eglSurface == null) {
try {
Thread.sleep(10);
} catch (InterruptedException t) {
}
}
}
}
return eglSurface;
}
public void destroySurface(EGL10 egl, EGLDisplay display, EGLSurface surface) {
egl.eglDestroySurface(display, surface);
}
}
interface GLWrapper {
/**
* Wraps a gl interface in another gl interface.
*
* @param gl
* a GL interface that is to be wrapped.
* @return either the input argument or another GL object that wraps the input argument.
*/
GL wrap(GL gl);
}
class EglHelper {
private EGL10 mEgl;
private EGLDisplay mEglDisplay;
private EGLSurface mEglSurface;
private EGLContext mEglContext;
EGLConfig mEglConfig;
private EGLConfigChooser mEGLConfigChooser;
private EGLContextFactory mEGLContextFactory;
private EGLWindowSurfaceFactory mEGLWindowSurfaceFactory;
private GLWrapper mGLWrapper;
public EglHelper(EGLConfigChooser chooser, EGLContextFactory contextFactory,
EGLWindowSurfaceFactory surfaceFactory, GLWrapper wrapper) {
this.mEGLConfigChooser = chooser;
this.mEGLContextFactory = contextFactory;
this.mEGLWindowSurfaceFactory = surfaceFactory;
this.mGLWrapper = wrapper;
}
/**
* Initialize EGL for a given configuration spec.
*
* @param configSpec
*/
public void start() {
// Log.d("EglHelper" + instanceId, "start()");
if (mEgl == null) {
// Log.d("EglHelper" + instanceId, "getting new EGL");
/*
* Get an EGL instance
*/
mEgl = (EGL10) EGLContext.getEGL();
} else {
// Log.d("EglHelper" + instanceId, "reusing EGL");
}
if (mEglDisplay == null) {
// Log.d("EglHelper" + instanceId, "getting new display");
/*
* Get to the default display.
*/
mEglDisplay = mEgl.eglGetDisplay(EGL10.EGL_DEFAULT_DISPLAY);
} else {
// Log.d("EglHelper" + instanceId, "reusing display");
}
if (mEglConfig == null) {
// Log.d("EglHelper" + instanceId, "getting new config");
/*
* We can now initialize EGL for that display
*/
int[] version = new int[2];
mEgl.eglInitialize(mEglDisplay, version);
mEglConfig = mEGLConfigChooser.chooseConfig(mEgl, mEglDisplay);
} else {
// Log.d("EglHelper" + instanceId, "reusing config");
}
if (mEglContext == null) {
// Log.d("EglHelper" + instanceId, "creating new context");
/*
* Create an OpenGL ES context. This must be done only once, an OpenGL context is a somewhat heavy object.
*/
mEglContext = mEGLContextFactory.createContext(mEgl, mEglDisplay, mEglConfig);
if (mEglContext == null || mEglContext == EGL10.EGL_NO_CONTEXT) {
throw new RuntimeException("createContext failed");
}
} else {
// Log.d("EglHelper" + instanceId, "reusing context");
}
mEglSurface = null;
}
/*
* React to the creation of a new surface by creating and returning an OpenGL interface that renders to that
* surface.
*/
public GL createSurface(SurfaceHolder holder) {
/*
* The window size has changed, so we need to create a new surface.
*/
if (mEglSurface != null && mEglSurface != EGL10.EGL_NO_SURFACE) {
/*
* Unbind and destroy the old EGL surface, if there is one.
*/
mEgl.eglMakeCurrent(mEglDisplay, EGL10.EGL_NO_SURFACE, EGL10.EGL_NO_SURFACE, EGL10.EGL_NO_CONTEXT);
mEGLWindowSurfaceFactory.destroySurface(mEgl, mEglDisplay, mEglSurface);
}
/*
* Create an EGL surface we can render into.
*/
mEglSurface = mEGLWindowSurfaceFactory.createWindowSurface(mEgl, mEglDisplay, mEglConfig, holder);
if (mEglSurface == null || mEglSurface == EGL10.EGL_NO_SURFACE) {
throw new RuntimeException("createWindowSurface failed");
}
/*
* Before we can issue GL commands, we need to make sure the context is current and bound to a surface.
*/
if (!mEgl.eglMakeCurrent(mEglDisplay, mEglSurface, mEglSurface, mEglContext)) {
throw new RuntimeException("eglMakeCurrent failed.");
}
GL gl = mEglContext.getGL();
if (mGLWrapper != null) {
gl = mGLWrapper.wrap(gl);
}
/*
* if ((mDebugFlags & (DEBUG_CHECK_GL_ERROR | DEBUG_LOG_GL_CALLS))!= 0) { int configFlags = 0; Writer log =
* null; if ((mDebugFlags & DEBUG_CHECK_GL_ERROR) != 0) { configFlags |= GLDebugHelper.CONFIG_CHECK_GL_ERROR; }
* if ((mDebugFlags & DEBUG_LOG_GL_CALLS) != 0) { log = new LogWriter(); } gl = GLDebugHelper.wrap(gl,
* configFlags, log); }
*/
return gl;
}
/**
* Display the current render surface.
*
* @return false if the context has been lost.
*/
public boolean swap() {
mEgl.eglSwapBuffers(mEglDisplay, mEglSurface);
/*
* Always check for EGL_CONTEXT_LOST, which means the context and all associated data were lost (For instance
* because the device went to sleep). We need to sleep until we get a new surface.
*/
return mEgl.eglGetError() != EGL11.EGL_CONTEXT_LOST;
}
public void destroySurface() {
if (mEglSurface != null && mEglSurface != EGL10.EGL_NO_SURFACE) {
mEgl.eglMakeCurrent(mEglDisplay, EGL10.EGL_NO_SURFACE, EGL10.EGL_NO_SURFACE, EGL10.EGL_NO_CONTEXT);
mEGLWindowSurfaceFactory.destroySurface(mEgl, mEglDisplay, mEglSurface);
mEglSurface = null;
}
}
public void finish() {
if (mEglContext != null) {
mEGLContextFactory.destroyContext(mEgl, mEglDisplay, mEglContext);
mEglContext = null;
}
if (mEglDisplay != null) {
mEgl.eglTerminate(mEglDisplay);
mEglDisplay = null;
}
}
}
class GLThread extends Thread {
private final static boolean LOG_THREADS = false;
public final static int DEBUG_CHECK_GL_ERROR = 1;
public final static int DEBUG_LOG_GL_CALLS = 2;
private final GLThreadManager sGLThreadManager = new GLThreadManager();
private GLThread mEglOwner;
private EGLConfigChooser mEGLConfigChooser;
private EGLContextFactory mEGLContextFactory;
private EGLWindowSurfaceFactory mEGLWindowSurfaceFactory;
private GLWrapper mGLWrapper;
public SurfaceHolder mHolder;
private boolean mSizeChanged = true;
// Once the thread is started, all accesses to the following member
// variables are protected by the sGLThreadManager monitor
public boolean mDone;
private boolean mPaused;
private boolean mHasSurface;
private boolean mWaitingForSurface;
private boolean mHaveEgl;
private int mWidth;
private int mHeight;
private int mRenderMode;
private boolean mRequestRender;
private boolean mEventsWaiting;
// End of member variables protected by the sGLThreadManager monitor.
private GLWallpaperService.Renderer mRenderer;
private ArrayList<Runnable> mEventQueue = new ArrayList<Runnable>();
private EglHelper mEglHelper;
GLThread(GLWallpaperService.Renderer renderer, EGLConfigChooser chooser, EGLContextFactory contextFactory,
EGLWindowSurfaceFactory surfaceFactory, GLWrapper wrapper) {
super();
mDone = false;
mWidth = 0;
mHeight = 0;
mRequestRender = true;
mRenderMode = GLWallpaperService.GLEngine.RENDERMODE_CONTINUOUSLY;
mRenderer = renderer;
this.mEGLConfigChooser = chooser;
this.mEGLContextFactory = contextFactory;
this.mEGLWindowSurfaceFactory = surfaceFactory;
this.mGLWrapper = wrapper;
}
@Override
public void run() {
setName("GLThread " + getId());
if (LOG_THREADS) {
Log.i("GLThread", "starting tid=" + getId());
}
try {
guardedRun();
} catch (InterruptedException e) {
// fall thru and exit normally
} finally {
sGLThreadManager.threadExiting(this);
}
}
/*
* This private method should only be called inside a synchronized(sGLThreadManager) block.
*/
private void stopEglLocked() {
if (mHaveEgl) {
mHaveEgl = false;
mEglHelper.destroySurface();
sGLThreadManager.releaseEglSurface(this);
}
}
private void guardedRun() throws InterruptedException {
mEglHelper = new EglHelper(mEGLConfigChooser, mEGLContextFactory, mEGLWindowSurfaceFactory, mGLWrapper);
try {
GL10 gl = null;
boolean tellRendererSurfaceCreated = true;
boolean tellRendererSurfaceChanged = true;
/*
* This is our main activity thread's loop, we go until asked to quit.
*/
while (!isDone()) {
/*
* Update the asynchronous state (window size)
*/
int w = 0;
int h = 0;
boolean changed = false;
boolean needStart = false;
boolean eventsWaiting = false;
synchronized (sGLThreadManager) {
while (true) {
// Manage acquiring and releasing the SurfaceView
// surface and the EGL surface.
if (mPaused) {
stopEglLocked();
}
if (!mHasSurface) {
if (!mWaitingForSurface) {
stopEglLocked();
mWaitingForSurface = true;
sGLThreadManager.notifyAll();
}
} else {
if (!mHaveEgl) {
if (sGLThreadManager.tryAcquireEglSurface(this)) {
mHaveEgl = true;
mEglHelper.start();
mRequestRender = true;
needStart = true;
}
}
}
// Check if we need to wait. If not, update any state
// that needs to be updated, copy any state that
// needs to be copied, and use "break" to exit the
// wait loop.
if (mDone) {
return;
}
if (mEventsWaiting) {
eventsWaiting = true;
mEventsWaiting = false;
break;
}
if ((!mPaused) && mHasSurface && mHaveEgl && (mWidth > 0) && (mHeight > 0)
&& (mRequestRender || (mRenderMode == GLWallpaperService.GLEngine.RENDERMODE_CONTINUOUSLY))) {
changed = mSizeChanged;
w = mWidth;
h = mHeight;
mSizeChanged = false;
mRequestRender = false;
if (mHasSurface && mWaitingForSurface) {
changed = true;
mWaitingForSurface = false;
sGLThreadManager.notifyAll();
}
break;
}
// By design, this is the only place where we wait().
if (LOG_THREADS) {
Log.i("GLThread", "waiting tid=" + getId());
}
sGLThreadManager.wait();
}
} // end of synchronized(sGLThreadManager)
/*
* Handle queued events
*/
if (eventsWaiting) {
Runnable r;
while ((r = getEvent()) != null) {
r.run();
if (isDone()) {
return;
}
}
// Go back and see if we need to wait to render.
continue;
}
if (needStart) {
tellRendererSurfaceCreated = true;
changed = true;
}
if (changed) {
gl = (GL10) mEglHelper.createSurface(mHolder);
tellRendererSurfaceChanged = true;
}
if (tellRendererSurfaceCreated) {
mRenderer.onSurfaceCreated(gl, mEglHelper.mEglConfig);
tellRendererSurfaceCreated = false;
}
if (tellRendererSurfaceChanged) {
mRenderer.onSurfaceChanged(gl, w, h);
tellRendererSurfaceChanged = false;
}
if ((w > 0) && (h > 0)) {
/* draw a frame here */
mRenderer.onDrawFrame(gl);
/*
* Once we're done with GL, we need to call swapBuffers() to instruct the system to display the
* rendered frame
*/
mEglHelper.swap();
Thread.sleep(10);
}
}
} finally {
/*
* clean-up everything...
*/
synchronized (sGLThreadManager) {
stopEglLocked();
mEglHelper.finish();
}
}
}
private boolean isDone() {
synchronized (sGLThreadManager) {
return mDone;
}
}
public void setRenderMode(int renderMode) {
if (!((GLWallpaperService.GLEngine.RENDERMODE_WHEN_DIRTY <= renderMode) && (renderMode <= GLWallpaperService.GLEngine.RENDERMODE_CONTINUOUSLY))) {
throw new IllegalArgumentException("renderMode");
}
synchronized (sGLThreadManager) {
mRenderMode = renderMode;
if (renderMode == GLWallpaperService.GLEngine.RENDERMODE_CONTINUOUSLY) {
sGLThreadManager.notifyAll();
}
}
}
public int getRenderMode() {
synchronized (sGLThreadManager) {
return mRenderMode;
}
}
public void requestRender() {
synchronized (sGLThreadManager) {
mRequestRender = true;
sGLThreadManager.notifyAll();
}
}
public void surfaceCreated(SurfaceHolder holder) {
mHolder = holder;
synchronized (sGLThreadManager) {
if (LOG_THREADS) {
Log.i("GLThread", "surfaceCreated tid=" + getId());
}
mHasSurface = true;
sGLThreadManager.notifyAll();
}
}
public void surfaceDestroyed() {
synchronized (sGLThreadManager) {
if (LOG_THREADS) {
Log.i("GLThread", "surfaceDestroyed tid=" + getId());
}
mHasSurface = false;
sGLThreadManager.notifyAll();
while (!mWaitingForSurface && isAlive() && !mDone) {
try {
sGLThreadManager.wait();
} catch (InterruptedException e) {
Thread.currentThread().interrupt();
}
}
}
}
public void onPause() {
synchronized (sGLThreadManager) {
mPaused = true;
sGLThreadManager.notifyAll();
}
}
public void onResume() {
synchronized (sGLThreadManager) {
mPaused = false;
mRequestRender = true;
sGLThreadManager.notifyAll();
}
}
public void onWindowResize(int w, int h) {
synchronized (sGLThreadManager) {
mWidth = w;
mHeight = h;
mSizeChanged = true;
sGLThreadManager.notifyAll();
}
}
public void requestExitAndWait() {
// don't call this from GLThread thread or it is a guaranteed
// deadlock!
synchronized (sGLThreadManager) {
mDone = true;
sGLThreadManager.notifyAll();
}
try {
join();
} catch (InterruptedException ex) {
Thread.currentThread().interrupt();
}
}
/**
* Queue an "event" to be run on the GL rendering thread.
*
* @param r
* the runnable to be run on the GL rendering thread.
*/
public void queueEvent(Runnable r) {
synchronized (this) {
mEventQueue.add(r);
synchronized (sGLThreadManager) {
mEventsWaiting = true;
sGLThreadManager.notifyAll();
}
}
}
private Runnable getEvent() {
synchronized (this) {
if (mEventQueue.size() > 0) {
return mEventQueue.remove(0);
}
}
return null;
}
private class GLThreadManager {
public synchronized void threadExiting(GLThread thread) {
if (LOG_THREADS) {
Log.i("GLThread", "exiting tid=" + thread.getId());
}
thread.mDone = true;
if (mEglOwner == thread) {
mEglOwner = null;
}
notifyAll();
}
/*
* Tries once to acquire the right to use an EGL surface. Does not block.
*
* @return true if the right to use an EGL surface was acquired.
*/
public synchronized boolean tryAcquireEglSurface(GLThread thread) {
if (mEglOwner == thread || mEglOwner == null) {
mEglOwner = thread;
notifyAll();
return true;
}
return false;
}
public synchronized void releaseEglSurface(GLThread thread) {
if (mEglOwner == thread) {
mEglOwner = null;
}
notifyAll();
}
}
}
interface EGLConfigChooser {
EGLConfig chooseConfig(EGL10 egl, EGLDisplay display);
}
abstract class BaseConfigChooser implements EGLConfigChooser {
public BaseConfigChooser(int[] configSpec) {
mConfigSpec = configSpec;
}
public EGLConfig chooseConfig(EGL10 egl, EGLDisplay display) {
int[] num_config = new int[1];
egl.eglChooseConfig(display, mConfigSpec, null, 0, num_config);
int numConfigs = num_config[0];
if (numConfigs <= 0) {
throw new IllegalArgumentException("No configs match configSpec");
}
EGLConfig[] configs = new EGLConfig[numConfigs];
egl.eglChooseConfig(display, mConfigSpec, configs, numConfigs, num_config);
EGLConfig config = chooseConfig(egl, display, configs);
if (config == null) {
throw new IllegalArgumentException("No config chosen");
}
return config;
}
abstract EGLConfig chooseConfig(EGL10 egl, EGLDisplay display, EGLConfig[] configs);
protected int[] mConfigSpec;
public static class ComponentSizeChooser extends BaseConfigChooser {
public ComponentSizeChooser(int redSize, int greenSize, int blueSize, int alphaSize, int depthSize,
int stencilSize) {
super(new int[] { EGL10.EGL_RED_SIZE, redSize, EGL10.EGL_GREEN_SIZE, greenSize, EGL10.EGL_BLUE_SIZE,
blueSize, EGL10.EGL_ALPHA_SIZE, alphaSize, EGL10.EGL_DEPTH_SIZE, depthSize, EGL10.EGL_STENCIL_SIZE,
stencilSize, EGL10.EGL_NONE });
mValue = new int[1];
mRedSize = redSize;
mGreenSize = greenSize;
mBlueSize = blueSize;
mAlphaSize = alphaSize;
mDepthSize = depthSize;
mStencilSize = stencilSize;
}
@Override
public EGLConfig chooseConfig(EGL10 egl, EGLDisplay display, EGLConfig[] configs) {
EGLConfig closestConfig = null;
int closestDistance = 1000;
for (EGLConfig config : configs) {
int d = findConfigAttrib(egl, display, config, EGL10.EGL_DEPTH_SIZE, 0);
int s = findConfigAttrib(egl, display, config, EGL10.EGL_STENCIL_SIZE, 0);
if (d >= mDepthSize && s >= mStencilSize) {
int r = findConfigAttrib(egl, display, config, EGL10.EGL_RED_SIZE, 0);
int g = findConfigAttrib(egl, display, config, EGL10.EGL_GREEN_SIZE, 0);
int b = findConfigAttrib(egl, display, config, EGL10.EGL_BLUE_SIZE, 0);
int a = findConfigAttrib(egl, display, config, EGL10.EGL_ALPHA_SIZE, 0);
int distance = Math.abs(r - mRedSize) + Math.abs(g - mGreenSize) + Math.abs(b - mBlueSize)
+ Math.abs(a - mAlphaSize);
if (distance < closestDistance) {
closestDistance = distance;
closestConfig = config;
}
}
}
return closestConfig;
}
private int findConfigAttrib(EGL10 egl, EGLDisplay display, EGLConfig config, int attribute, int defaultValue) {
if (egl.eglGetConfigAttrib(display, config, attribute, mValue)) {
return mValue[0];
}
return defaultValue;
}
private int[] mValue;
// Subclasses can adjust these values:
protected int mRedSize;
protected int mGreenSize;
protected int mBlueSize;
protected int mAlphaSize;
protected int mDepthSize;
protected int mStencilSize;
}
/**
* This class will choose a supported surface as close to RGB565 as possible, with or without a depth buffer.
*
*/
public static class SimpleEGLConfigChooser extends ComponentSizeChooser {
public SimpleEGLConfigChooser(boolean withDepthBuffer) {
super(4, 4, 4, 0, withDepthBuffer ? 16 : 0, 0);
mRedSize = 5;
mGreenSize = 6;
mBlueSize = 5;
}
}
}