2 files changed, 32 insertions, 9 deletions

diff --git a/src/com/jogamp/opencl/demos/julia3d/Julia3d.java b/src/com/jogamp/opencl/demos/julia3d/Julia3d.java
index 38633c6..f4bf392 100644
--- a/src/com/jogamp/opencl/demos/julia3d/Julia3d.java
+++ b/src/com/jogamp/opencl/demos/julia3d/Julia3d.java
@@ -43,15 +43,18 @@ public class Julia3d {
         this.config = renderConfig;
         updateCamera();
 
-        //setup
-        CLDevice gpu = CLPlatform.getDefault().getMaxFlopsDevice();
-        context = CLContext.create(gpu);
+        //setup, prefere GPUs
+        CLDevice device = CLPlatform.getDefault().getMaxFlopsDevice(CLDevice.Type.GPU);
+        if(device == null) {
+            device = CLPlatform.getDefault().getMaxFlopsDevice();
+        }
+        context = CLContext.create(device);
 
         workGroupSize = 256;
 
         //allocate buffers
         configBuffer = context.createBuffer(config.getBuffer(), READ_ONLY);
-        commandQueue = gpu.createCommandQueue();
+        commandQueue = device.createCommandQueue();
 //        update(true);
 
         try {
@@ -63,7 +66,7 @@ public class Julia3d {
 
         julia = program.createCLKernel("JuliaGPU");
         multiply = program.createCLKernel("multiply");
-        System.out.println(program.getBuildStatus(gpu));
+        System.out.println(program.getBuildStatus(device));
         System.out.println(program.getBuildLog());
 
     }
@@ -179,6 +182,10 @@ public class Julia3d {
         vmul(camY, .5135f, camY);
     }
 
+    CLDevice getDevice() {
+        return commandQueue.getDevice();
+    }
+
 
     public static void main(String[] args) {
 
@@ -208,5 +215,9 @@ public class Julia3d {
         return pixelBuffer.getBuffer();
     }
 
+    void release() {
+        context.release();
+    }
+
 
 }
diff --git a/src/com/jogamp/opencl/demos/julia3d/Renderer.java b/src/com/jogamp/opencl/demos/julia3d/Renderer.java
index ce97e4a..6fe2309 100644
--- a/src/com/jogamp/opencl/demos/julia3d/Renderer.java
+++ b/src/com/jogamp/opencl/demos/julia3d/Renderer.java
@@ -1,9 +1,13 @@
 package com.jogamp.opencl.demos.julia3d;
 
+import com.jogamp.opencl.CLDevice;
 import com.jogamp.opencl.demos.julia3d.structs.RenderingConfig;
 import com.jogamp.opengl.util.awt.TextRenderer;
 import java.awt.Dimension;
 import java.awt.Font;
+import java.awt.event.WindowAdapter;
+import java.awt.event.WindowEvent;
+import java.awt.event.WindowListener;
 import java.nio.FloatBuffer;
 import java.util.Timer;
 import java.util.TimerTask;
@@ -37,11 +41,11 @@ public class Renderer implements GLEventListener {
     private TimerTask task;
     private final Timer timer;
 
-    public Renderer(Julia3d julia3d) {
+    public Renderer(final Julia3d julia3d) {
         this.julia3d = julia3d;
         this.config = julia3d.config;
 
-        timer = new Timer();
+        timer = new Timer(true);
 
         juliaSlice = newDirectFloatBuffer(MU_RECT_SIZE * MU_RECT_SIZE * 4);
 
@@ -51,8 +55,16 @@ public class Renderer implements GLEventListener {
         usi = new UserSceneController();
         usi.init(this, canvas, config);
 
-        JFrame frame = new JFrame("Java OpenCL - Julia3D GPU");
-        frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
+        CLDevice device = julia3d.getDevice();
+        JFrame frame = new JFrame("Java OpenCL - Julia3D "+device.getType()+" "+device.getName());
+        frame.setDefaultCloseOperation(JFrame.DISPOSE_ON_CLOSE);
+        frame.addWindowListener(new WindowAdapter() {
+            @Override
+            public void windowClosed(WindowEvent e) {
+                julia3d.release();
+                System.exit(0);
+            }
+        });
         canvas.setPreferredSize(new Dimension(config.getWidth(), config.getHeight()));
         frame.add(canvas);
         frame.pack();