Merge branch 'android-tegra-playground' of git://github.com/sgothel/jogl into android-tegra-playground

8 files changed, 89 insertions, 209 deletions

diff --git a/src/android/com/jogamp/android/launcher/ClassLoaderUtil.java b/src/android/com/jogamp/android/launcher/ClassLoaderUtil.java
index 36f4c333f..4f0bf46b8 100644
--- a/src/android/com/jogamp/android/launcher/ClassLoaderUtil.java
+++ b/src/android/com/jogamp/android/launcher/ClassLoaderUtil.java
@@ -43,54 +43,75 @@ public class ClassLoaderUtil {
    
    public static final String dexPathName= "jogampDex";
    
-   // private static LauncherTempFileCache tmpFileCache;
-
+   private static LauncherTempFileCache tmpFileCache = null;
+   private static ClassLoader jogAmpClassLoader = null;
+   
    public static synchronized ClassLoader createJogampClassLoaderSingleton(Context ctx, String userPackageName) {
-       LauncherTempFileCache tmpFileCache = null; // hack .. for each launch, instead for each ClassLoader
-       if(null==tmpFileCache) {
-            if(!LauncherTempFileCache.initSingleton(ctx)) {
-                throw new InternalError("TempFileCache initialization error");
-            }
+       if(null==jogAmpClassLoader) {
+           if(null!=tmpFileCache) {
+               throw new InternalError("XXX0");
+           }
+           if(!LauncherTempFileCache.initSingleton(ctx)) {
+               throw new InternalError("TempFileCache initialization error");
+           }
            tmpFileCache = new LauncherTempFileCache();
            if(!tmpFileCache.isValid()) {
                throw new InternalError("TempFileCache instantiation error");                
            }
-       }
-       final ApplicationInfo ai = ctx.getApplicationInfo();
-       Log.d(TAG, "S: userPackageName: "+userPackageName+", dataDir: "+ai.dataDir+", nativeLibraryDir: "+ai.nativeLibraryDir);
-
-       final String appDir = new File(ai.dataDir).getParent();
-       final String libSub = ai.nativeLibraryDir.substring(ai.nativeLibraryDir.lastIndexOf('/')+1);
-       Log.d(TAG, "S: appDir: "+appDir+", libSub: "+libSub);
+           final ApplicationInfo ai = ctx.getApplicationInfo();
+           Log.d(TAG, "S: userPackageName: "+userPackageName+", dataDir: "+ai.dataDir+", nativeLibraryDir: "+ai.nativeLibraryDir);
+    
+           final String appDir = new File(ai.dataDir).getParent();
+           final String libSub = ai.nativeLibraryDir.substring(ai.nativeLibraryDir.lastIndexOf('/')+1);
+           Log.d(TAG, "S: appDir: "+appDir+", libSub: "+libSub);
+           
+           final String libPathName = appDir + "/" + packageGlueGen + "/" + libSub + "/:" +
+                                      appDir + "/" + packageJogl + "/" + libSub + "/" ;
+           Log.d(TAG, "S: libPath: "+libPathName);
+                   
+           String apkGlueGen = null;
+           String apkJogl = null;
        
-       final String libPathName = appDir + "/" + packageGlueGen + "/" + libSub + "/:" +
-                                  appDir + "/" + packageJogl + "/" + libSub + "/" ;
-       Log.d(TAG, "S: libPath: "+libPathName);
-               
-       String apkGlueGen = null;
-       String apkJogl = null;
-       String apkJoglTest = null;
+           try {
+               apkGlueGen = ctx.getPackageManager().getApplicationInfo(packageGlueGen,0).sourceDir;
+               apkJogl = ctx.getPackageManager().getApplicationInfo(packageJogl,0).sourceDir;
+           } catch (PackageManager.NameNotFoundException e) {
+               Log.d(TAG, "error: "+e, e);
+           }
+           if(null == apkGlueGen || null == apkJogl) {
+               Log.d(TAG, "not found: gluegen <"+apkGlueGen+">, jogl <"+apkJogl+">");
+               return null;
+           }
+           
+           final String cp = apkGlueGen + ":" + apkJogl ;
+           Log.d(TAG, "jogamp cp: " + cp);
+       
+           final File dexPath = new File(tmpFileCache.getTempDir(), dexPathName);
+           Log.d(TAG, "jogamp dexPath: " + dexPath.getAbsolutePath());
+           dexPath.mkdir();
+           jogAmpClassLoader = new DexClassLoader(cp, dexPath.getAbsolutePath(), libPathName, ctx.getClassLoader());
+       } else {
+           if(null==tmpFileCache) {
+               throw new InternalError("XXX1");
+           }           
+       }
        
+       String apkUser = null;
        try {
-           apkGlueGen = ctx.getPackageManager().getApplicationInfo(packageGlueGen,0).sourceDir;
-           apkJogl = ctx.getPackageManager().getApplicationInfo(packageJogl,0).sourceDir;
-           apkJoglTest = ctx.getPackageManager().getApplicationInfo(userPackageName,0).sourceDir;
+           apkUser = ctx.getPackageManager().getApplicationInfo(userPackageName,0).sourceDir;
        } catch (PackageManager.NameNotFoundException e) {
            Log.d(TAG, "error: "+e, e);
        }
-       if(null == apkGlueGen || null == apkJogl || null == apkJoglTest) {
-           Log.d(TAG, "not found: gluegen <"+apkGlueGen+">, jogl <"+apkJogl+">, jogl-test <"+apkJoglTest+">");
+       if(null == apkUser) {
+           Log.d(TAG, "not found: user apk <"+apkUser+">");
            return null;
        }
        
-       final String cp = apkGlueGen + ":" + apkJogl + ":" + apkJoglTest ;
-       Log.d(TAG, "cp: " + cp);
-   
-       final File dexPath = new File(tmpFileCache.getTempDir(), dexPathName);
-       Log.d(TAG, "dexPath: " + dexPath.getAbsolutePath());
+       Log.d(TAG, "user cp: " + apkUser);
+       final File dexPath = new File(tmpFileCache.getTempDir(), userPackageName);
+       Log.d(TAG, "user dexPath: " + dexPath.getAbsolutePath());
        dexPath.mkdir();
-       
-       ClassLoader cl = new DexClassLoader(cp, dexPath.getAbsolutePath(), libPathName, ctx.getClassLoader());
+       ClassLoader cl = new DexClassLoader(apkUser, dexPath.getAbsolutePath(), null, jogAmpClassLoader);
        Log.d(TAG, "cl: " + cl);
        // setAPKClassLoader(dexLoader);
        
diff --git a/src/newt/classes/jogamp/newt/driver/android/NewtBaseActivity.java b/src/newt/classes/jogamp/newt/driver/android/NewtBaseActivity.java
index 358fcc994..9a2a0ea2c 100644
--- a/src/newt/classes/jogamp/newt/driver/android/NewtBaseActivity.java
+++ b/src/newt/classes/jogamp/newt/driver/android/NewtBaseActivity.java
@@ -31,15 +31,18 @@ import javax.media.opengl.GLProfile;
 
 import com.jogamp.newt.Window;
 import com.jogamp.newt.opengl.GLWindow;
+import com.jogamp.opengl.util.Animator;
 
 import jogamp.newt.driver.android.AndroidWindow;
 
 import android.app.Activity;
-import android.content.Context;
 import android.os.Bundle;
 import android.util.Log;
 
 public class NewtBaseActivity extends Activity {
+   AndroidWindow window = null;
+   Animator animator = null;
+    
    boolean isInvokedByExternalActivity = false;
    Activity extActivity = this;
    
@@ -56,16 +59,21 @@ public class NewtBaseActivity extends Activity {
            window = ((GLWindow)window).getWindow();
        }
        if(window instanceof AndroidWindow) {
+           this.window = (AndroidWindow)window;
            if(isInvokedByExternalActivity) {
-               extActivity.setContentView(((AndroidWindow)window).getView());
+               extActivity.setContentView(this.window.getView());
            } else {
-               super.setContentView(((AndroidWindow)window).getView());               
+               super.setContentView(this.window.getView());               
            }
        } else {
            throw new IllegalArgumentException("Given NEWT Window is not an Android Window: "+window.getClass()); 
        }
    }
    
+   public void setAnimator(Animator animator) {
+       this.animator = animator;
+   }
+   
    @Override
    public void onCreate(Bundle savedInstanceState) {
        Log.d(MD.TAG, "onCreate");
@@ -103,11 +111,17 @@ public class NewtBaseActivity extends Activity {
      if(!isInvokedByExternalActivity) {
          super.onResume();
      }
+     if(null != animator) {
+         animator.start();
+     }
    }
 
    @Override
    public void onPause() {
      Log.d(MD.TAG, "onPause");
+     if(null != animator) {
+         animator.pause();
+     }
      if(!isInvokedByExternalActivity) {
          super.onPause();
      }
@@ -124,6 +138,14 @@ public class NewtBaseActivity extends Activity {
    @Override
    public void onDestroy() {
      Log.d(MD.TAG, "onDestroy");
+     if(null != animator) {
+         animator.stop();
+         animator = null;
+     }
+     if(null != window) {
+         window.destroy();
+         window = null;
+     }
      if(!isInvokedByExternalActivity) {
          super.onDestroy(); 
      }
diff --git a/src/newt/classes/jogamp/newt/driver/android/NewtVersionActivity.java b/src/newt/classes/jogamp/newt/driver/android/NewtVersionActivity.java
index 5842a285d..d37901793 100644
--- a/src/newt/classes/jogamp/newt/driver/android/NewtVersionActivity.java
+++ b/src/newt/classes/jogamp/newt/driver/android/NewtVersionActivity.java
@@ -30,17 +30,13 @@ package jogamp.newt.driver.android;
 import com.jogamp.common.GlueGenVersion;
 import com.jogamp.common.os.Platform;
 import com.jogamp.common.util.VersionUtil;
-import com.jogamp.newt.opengl.GLWindow;
 import com.jogamp.opengl.JoglVersion;
-import com.jogamp.opengl.util.Animator;
 
 import android.os.Bundle;
 import android.util.Log;
 import android.widget.TextView;
 
 public class NewtVersionActivity extends NewtBaseActivity {
-   GLWindow glWindow = null;
-   Animator animator = null;
    TextView tv = null;
    
    @Override
@@ -57,50 +53,7 @@ public class NewtVersionActivity extends NewtBaseActivity {
        tv = new TextView(this);
        tv.setText(VersionUtil.getPlatformInfo()+Platform.NEWLINE+GlueGenVersion.getInstance()+Platform.NEWLINE+JoglVersion.getInstance()+Platform.NEWLINE);               
        setContentView(tv);
-       /**
-       // create GLWindow (-> incl. underlying NEWT Display, Screen & Window)
-       GLCapabilities caps = new GLCapabilities(GLProfile.get(GLProfile.GLES1));
-       glWindow = GLWindow.create(caps);
-       setContentView(glWindow);
-       
-       glWindow.addGLEventListener(new GearsES1(1));
-       glWindow.getWindow().getScreen().addScreenModeListener(new ScreenModeListener() {
-        public void screenModeChangeNotify(ScreenMode sm) { }
-        public void screenModeChanged(ScreenMode sm, boolean success) {
-            System.err.println("ScreenMode Changed: "+sm);
-        }
-       });
-       glWindow.setVisible(true);
-       animator = new Animator(glWindow);
-       animator.setUpdateFPSFrames(60, System.err); */
-       
-       Log.d(MD.TAG, "onCreate - X");
-   }
-   
-   @Override
-   public void onResume() {
-     super.onResume();
-     if(null != animator) {
-         animator.start();
-     }
-   }
 
-   @Override
-   public void onPause() {
-     super.onPause();
-     if(null != animator) {
-         animator.pause();
-     }
-   }
-
-   @Override
-   public void onDestroy() {
-     super.onDestroy(); 
-     if(null != animator) {
-         animator.stop();
-     }
-     if(null != glWindow) {
-         glWindow.destroy();
-     }
+       Log.d(MD.TAG, "onCreate - X");
    }   
 }
diff --git a/src/test/com/jogamp/opengl/test/android/NEWTGearsES1Activity.java b/src/test/com/jogamp/opengl/test/android/NEWTGearsES1Activity.java
index c0b358d07..897df89cd 100644
--- a/src/test/com/jogamp/opengl/test/android/NEWTGearsES1Activity.java
+++ b/src/test/com/jogamp/opengl/test/android/NEWTGearsES1Activity.java
@@ -41,12 +41,8 @@ import com.jogamp.opengl.util.Animator;
 
 import android.os.Bundle;
 import android.util.Log;
-import android.widget.TextView;
 
 public class NEWTGearsES1Activity extends NewtBaseActivity {
-   GLWindow glWindow = null;
-   Animator animator = null;
-   TextView tv = null;
    static String TAG = "NEWTGearsES1Activity";
    
    @Override
@@ -57,7 +53,7 @@ public class NEWTGearsES1Activity extends NewtBaseActivity {
        // create GLWindow (-> incl. underlying NEWT Display, Screen & Window)
        GLCapabilities caps = new GLCapabilities(GLProfile.get(GLProfile.GLES1));
        Log.d(TAG, "req caps: "+caps);
-       glWindow = GLWindow.create(caps);
+       GLWindow glWindow = GLWindow.create(caps);
        setContentView(glWindow);
        
        glWindow.addGLEventListener(new GearsES1(1));
@@ -68,36 +64,10 @@ public class NEWTGearsES1Activity extends NewtBaseActivity {
         }
        });
        glWindow.setVisible(true);
-       animator = new Animator(glWindow);
+       Animator animator = new Animator(glWindow);
        animator.setUpdateFPSFrames(60, System.err);
+       setAnimator(animator);
        
        Log.d(TAG, "onCreate - X");
-   }
-   
-   @Override
-   public void onResume() {
-     super.onResume();
-     if(null != animator) {
-         animator.start();
-     }
-   }
-
-   @Override
-   public void onPause() {
-     if(null != animator) {
-         animator.pause();
-     }
-     super.onPause();
-   }
-
-   @Override
-   public void onDestroy() {
-     if(null != animator) {
-         animator.stop();
-     }
-     if(null != glWindow) {
-         glWindow.destroy();
-     }
-     super.onDestroy(); 
    }   
 }
diff --git a/src/test/com/jogamp/opengl/test/android/NEWTGearsES2Activity.java b/src/test/com/jogamp/opengl/test/android/NEWTGearsES2Activity.java
index 12ef40280..b19c12d4a 100644
--- a/src/test/com/jogamp/opengl/test/android/NEWTGearsES2Activity.java
+++ b/src/test/com/jogamp/opengl/test/android/NEWTGearsES2Activity.java
@@ -41,12 +41,8 @@ import com.jogamp.opengl.util.Animator;
 
 import android.os.Bundle;
 import android.util.Log;
-import android.widget.TextView;
 
 public class NEWTGearsES2Activity extends NewtBaseActivity {
-   GLWindow glWindow = null;
-   Animator animator = null;
-   TextView tv = null;
    static String TAG = "NEWTGearsES2Activity";
    
    @Override
@@ -57,7 +53,7 @@ public class NEWTGearsES2Activity extends NewtBaseActivity {
        // create GLWindow (-> incl. underlying NEWT Display, Screen & Window)
        GLCapabilities caps = new GLCapabilities(GLProfile.get(GLProfile.GLES2));
        Log.d(TAG, "req caps: "+caps);
-       glWindow = GLWindow.create(caps);
+       GLWindow glWindow = GLWindow.create(caps);
        setContentView(glWindow);
        
        glWindow.addGLEventListener(new GearsES2(1));
@@ -68,36 +64,10 @@ public class NEWTGearsES2Activity extends NewtBaseActivity {
         }
        });
        glWindow.setVisible(true);
-       animator = new Animator(glWindow);
+       Animator animator = new Animator(glWindow);
        animator.setUpdateFPSFrames(60, System.err);
+       setAnimator(animator);
        
        Log.d(TAG, "onCreate - X");
-   }
-   
-   @Override
-   public void onResume() {
-     super.onResume();
-     if(null != animator) {
-         animator.start();
-     }
-   }
-
-   @Override
-   public void onPause() {
-     super.onPause();
-     if(null != animator) {
-         animator.pause();
-     }
-   }
-
-   @Override
-   public void onDestroy() {
-     super.onDestroy(); 
-     if(null != animator) {
-         animator.stop();
-     }
-     if(null != glWindow) {
-         glWindow.destroy();
-     }
    }   
 }
diff --git a/src/test/com/jogamp/opengl/test/android/NEWTGraphUIActivity.java b/src/test/com/jogamp/opengl/test/android/NEWTGraphUIActivity.java
index d6ab28f13..3fcc82689 100644
--- a/src/test/com/jogamp/opengl/test/android/NEWTGraphUIActivity.java
+++ b/src/test/com/jogamp/opengl/test/android/NEWTGraphUIActivity.java
@@ -41,12 +41,8 @@ import com.jogamp.opengl.util.Animator;
 
 import android.os.Bundle;
 import android.util.Log;
-import android.widget.TextView;
 
 public class NEWTGraphUIActivity extends NewtBaseActivity {
-   GLWindow glWindow = null;
-   Animator animator = null;
-   TextView tv = null;
    static String TAG = "NEWTGraphUIActivity";
    
    @Override
@@ -60,7 +56,7 @@ public class NEWTGraphUIActivity extends NewtBaseActivity {
        caps.setNumSamples(4);
        caps.setSampleBuffers(true);
        Log.d(TAG, "req caps: "+caps);
-       glWindow = GLWindow.create(caps);
+       GLWindow glWindow = GLWindow.create(caps);
        setContentView(glWindow);
        
        glWindow.addGLEventListener(new GPUUISceneGLListener0A());
@@ -71,36 +67,10 @@ public class NEWTGraphUIActivity extends NewtBaseActivity {
         }
        });
        glWindow.setVisible(true);
-       animator = new Animator(glWindow);
+       Animator animator = new Animator(glWindow);
        animator.setUpdateFPSFrames(60, System.err);
+       setAnimator(animator);
        
        Log.d(TAG, "onCreate - X");
-   }
-   
-   @Override
-   public void onResume() {
-     super.onResume();
-     if(null != animator) {
-         animator.start();
-     }
-   }
-
-   @Override
-   public void onPause() {
-     super.onPause();
-     if(null != animator) {
-         animator.pause();
-     }
-   }
-
-   @Override
-   public void onDestroy() {
-     super.onDestroy(); 
-     if(null != animator) {
-         animator.stop();
-     }
-     if(null != glWindow) {
-         glWindow.destroy();
-     }
    }   
 }
diff --git a/src/test/com/jogamp/opengl/test/junit/jogl/demos/es1/RedSquareES1.java b/src/test/com/jogamp/opengl/test/junit/jogl/demos/es1/RedSquareES1.java
index cc2578e9d..38afec7f1 100644
--- a/src/test/com/jogamp/opengl/test/junit/jogl/demos/es1/RedSquareES1.java
+++ b/src/test/com/jogamp/opengl/test/junit/jogl/demos/es1/RedSquareES1.java
@@ -7,8 +7,6 @@ import javax.media.opengl.fixedfunc.GLMatrixFunc;
 import javax.media.opengl.fixedfunc.GLPointerFunc;
 import javax.media.opengl.glu.*;
 
-import org.junit.Assert;
-
 import com.jogamp.opengl.util.glsl.fixedfunc.*;
 
 public class RedSquareES1 implements GLEventListener {
@@ -45,7 +43,6 @@ public class RedSquareES1 implements GLEventListener {
 
     public void init(GLAutoDrawable drawable) {
         System.err.println(Thread.currentThread()+" RedSquareES1.init ...");
-        Assert.assertNull("GLU object is not null -> already init", glu);        
         GL _gl = drawable.getGL();
 
         if(glDebugEmu) {
@@ -111,7 +108,6 @@ public class RedSquareES1 implements GLEventListener {
 
     public void reshape(GLAutoDrawable drawable, int x, int y, int width, int height) {
         System.err.println(Thread.currentThread()+" RedSquareES1.reshape "+x+"/"+y+" "+width+"x"+height+", swapInterval "+swapInterval);
-        Assert.assertNotNull("GLU object is null -> not init or already disposed", glu);        
         GL2ES1 gl = drawable.getGL().getGL2ES1();
         gl.setSwapInterval(swapInterval);
         
@@ -125,7 +121,6 @@ public class RedSquareES1 implements GLEventListener {
     }
 
     public void display(GLAutoDrawable drawable) {
-        Assert.assertNotNull("GLU object is null -> not init or already disposed", glu);        
         curTime = System.currentTimeMillis();
         GL2ES1 gl = drawable.getGL().getGL2ES1();
         gl.glClear(GL.GL_COLOR_BUFFER_BIT | GL.GL_DEPTH_BUFFER_BIT);
@@ -148,7 +143,6 @@ public class RedSquareES1 implements GLEventListener {
 
     public void dispose(GLAutoDrawable drawable) {
         System.err.println(Thread.currentThread()+" RedSquareES1.dispose ... ");
-        Assert.assertNotNull("GLU object is null -> not init or already disposed", glu);        
         GL2ES1 gl = drawable.getGL().getGL2ES1();
         gl.glDisableClientState(GLPointerFunc.GL_VERTEX_ARRAY);
         gl.glDisableClientState(GLPointerFunc.GL_COLOR_ARRAY);
diff --git a/src/test/com/jogamp/opengl/test/junit/jogl/demos/es2/RedSquareES2.java b/src/test/com/jogamp/opengl/test/junit/jogl/demos/es2/RedSquareES2.java
index c3dfb8897..b750e8eb1 100644
--- a/src/test/com/jogamp/opengl/test/junit/jogl/demos/es2/RedSquareES2.java
+++ b/src/test/com/jogamp/opengl/test/junit/jogl/demos/es2/RedSquareES2.java
@@ -36,9 +36,7 @@ import javax.media.opengl.GL;
 import javax.media.opengl.GL2ES2;
 import javax.media.opengl.GLAutoDrawable;
 import javax.media.opengl.GLEventListener;
-import javax.media.opengl.GLException;
 import javax.media.opengl.GLUniformData;
-import org.junit.Assert;
 
 public class RedSquareES2 implements GLEventListener {
     ShaderState st;
@@ -59,7 +57,6 @@ public class RedSquareES2 implements GLEventListener {
         
     public void init(GLAutoDrawable glad) {
         System.err.println(Thread.currentThread()+" RedSquareES2.init ...");
-        Assert.assertNull("ShaderState object is not null -> already init", st);
         GL2ES2 gl = glad.getGL().getGL2ES2();
         
         System.err.println(Thread.currentThread()+" GL Profile: "+gl.getGLProfile());
@@ -77,7 +74,6 @@ public class RedSquareES2 implements GLEventListener {
         sp0.add(gl, fp0, System.err);
         st.attachShaderProgram(gl, sp0);
         st.useProgram(gl, true);        
-        Assert.assertEquals(GL.GL_NO_ERROR, gl.glGetError());
         
         // setup mgl_PMVMatrix
         pmvMatrix = new PMVMatrix();
@@ -88,7 +84,6 @@ public class RedSquareES2 implements GLEventListener {
         pmvMatrixUniform = new GLUniformData("mgl_PMVMatrix", 4, 4, pmvMatrix.glGetPMvMatrixf()); // P, Mv
         st.ownUniform(pmvMatrixUniform);
         st.uniform(gl, pmvMatrixUniform);        
-        Assert.assertEquals(GL.GL_NO_ERROR, gl.glGetError());
         
         // Allocate Vertex Array
         vertices = GLArrayDataServer.createGLSL("mgl_Vertex", 3, GL.GL_FLOAT, false, 4, GL.GL_STATIC_DRAW);
@@ -99,7 +94,6 @@ public class RedSquareES2 implements GLEventListener {
         vertices.seal(gl, true);
         st.ownAttribute(vertices, true);
         vertices.enableBuffer(gl, false);
-        Assert.assertEquals(GL.GL_NO_ERROR, gl.glGetError());
         
         // Allocate Color Array
         colors= GLArrayDataServer.createGLSL("mgl_Color", 4, GL.GL_FLOAT, false, 4, GL.GL_STATIC_DRAW);
@@ -110,13 +104,11 @@ public class RedSquareES2 implements GLEventListener {
         colors.seal(gl, true);          
         st.ownAttribute(colors, true);
         colors.enableBuffer(gl, false);
-        Assert.assertEquals(GL.GL_NO_ERROR, gl.glGetError());
         
         // OpenGL Render Settings
         gl.glClearColor(0, 0, 0, 1);
         gl.glEnable(GL2ES2.GL_DEPTH_TEST);
         st.useProgram(gl, false);        
-        Assert.assertEquals(GL.GL_NO_ERROR, gl.glGetError());
 
         t0 = System.currentTimeMillis();
         System.err.println(Thread.currentThread()+" RedSquareES2.init FIN");
@@ -124,33 +116,26 @@ public class RedSquareES2 implements GLEventListener {
 
     public void reshape(GLAutoDrawable glad, int x, int y, int width, int height) {
         System.err.println(Thread.currentThread()+" RedSquareES2.reshape "+x+"/"+y+" "+width+"x"+height+", swapInterval "+swapInterval);        
-        Assert.assertNotNull("ShaderState object is null -> not init or already disposed", st);
         GL2ES2 gl = glad.getGL().getGL2ES2();
         gl.setSwapInterval(swapInterval);
         
         st.useProgram(gl, true);
-        Assert.assertEquals(GL.GL_NO_ERROR, gl.glGetError());
         // Set location in front of camera
         pmvMatrix.glMatrixMode(PMVMatrix.GL_PROJECTION);
         pmvMatrix.glLoadIdentity();
         pmvMatrix.gluPerspective(45.0F, (float) width / (float) height, 1.0F, 100.0F);
         //pmvMatrix.glOrthof(-4.0f, 4.0f, -4.0f, 4.0f, 1.0f, 100.0f);
         gl.glUniform(pmvMatrixUniform);
-        Assert.assertEquals(GL.GL_NO_ERROR, gl.glGetError());
         st.useProgram(gl, false);
-        Assert.assertEquals(GL.GL_NO_ERROR, gl.glGetError());
         System.err.println(Thread.currentThread()+" RedSquareES2.reshape FIN");
     }
 
     public void display(GLAutoDrawable glad) {
-        Assert.assertNotNull("ShaderState object is null -> not init or already disposed", st);
         long t1 = System.currentTimeMillis();
 
         GL2ES2 gl = glad.getGL().getGL2ES2();
         st.useProgram(gl, true);
-        Assert.assertEquals(GL.GL_NO_ERROR, gl.glGetError());
         gl.glClear(GL.GL_COLOR_BUFFER_BIT | GL.GL_DEPTH_BUFFER_BIT);
-        Assert.assertEquals(GL.GL_NO_ERROR, gl.glGetError());
         // One rotation every four seconds
         pmvMatrix.glMatrixMode(PMVMatrix.GL_MODELVIEW);
         pmvMatrix.glLoadIdentity();
@@ -159,24 +144,19 @@ public class RedSquareES2 implements GLEventListener {
         pmvMatrix.glRotatef(ang, 0, 0, 1);
         pmvMatrix.glRotatef(ang, 0, 1, 0);
         gl.glUniform(pmvMatrixUniform);
-        Assert.assertEquals(GL.GL_NO_ERROR, gl.glGetError());
         // Draw a square
         vertices.enableBuffer(gl, true);
         colors.enableBuffer(gl, true);
         gl.glDrawArrays(GL.GL_TRIANGLE_STRIP, 0, 4);
         vertices.enableBuffer(gl, false);
         colors.enableBuffer(gl, false);
-        Assert.assertEquals(GL.GL_NO_ERROR, gl.glGetError());
         st.useProgram(gl, false);
-        Assert.assertEquals(GL.GL_NO_ERROR, gl.glGetError());
     }
 
     public void dispose(GLAutoDrawable glad) {
         System.err.println(Thread.currentThread()+" RedSquareES2.dispose ... ");
-        Assert.assertNotNull("ShaderState object is null -> not init or already disposed", st);
         GL2ES2 gl = glad.getGL().getGL2ES2();
         st.destroy(gl);
-        Assert.assertEquals(GL.GL_NO_ERROR, gl.glGetError());
         st = null;
         pmvMatrix.destroy();
         pmvMatrix = null;