implemented LwjglCommandQueue, LwjglBuffer and LwjglEvent, added buffer test to HelloOpenCL

jme3-core/src/main/java/com/jme3/opencl/Context.java

@@ -51,8 +51,8 @@ public interface Context {
     Buffer createBuffer(int size, MemoryAccess access);
     Buffer createBuffer(int size);
 
-    Buffer useHostBuffer(ByteBuffer data, int size, MemoryAccess access);
+    Buffer createBufferFromHost(ByteBuffer data, MemoryAccess access);
-    Buffer useHostBuffer(ByteBuffer data, int size);
+    Buffer createBufferFromHost(ByteBuffer data);
 
     public static enum ImageChannelOrder {
 

jme3-core/src/main/java/com/jme3/opencl/Event.java

@@ -35,18 +35,9 @@ package com.jme3.opencl;
  *
  * @author Sebastian Weiss
  */
-public final class Event {
+public interface Event {
-	private final long event;
 	
-	public Event(long event) {
+	void waitForFinished();
-		this.event = event;
-	}
 	
-	public void waitForFinished() {
+	boolean isCompleted();
-		throw new UnsupportedOperationException("not supported yet");
-	}
-	
-	public boolean isCompleted() {
-		throw new UnsupportedOperationException("not supported yet");
-	}
 }

jme3-core/src/main/java/com/jme3/opencl/Kernel.java

@@ -34,30 +34,24 @@ package com.jme3.opencl;
 import com.jme3.math.Quaternion;
 import com.jme3.math.Vector2f;
 import com.jme3.math.Vector4f;
+import java.nio.ByteBuffer;
 
 /**
  *
  * @author Sebastian Weiss
  */
-public final class Kernel {
+public abstract class Kernel {
-/*
     private final WorkSize globalWorkSize;
     private final WorkSize workGroupSize;
-    private final long kernel;
 
-    public Kernel(long kernel) {
+    protected Kernel() {
-        this.kernel = kernel;
         this.globalWorkSize = new WorkSize(0);
         this.workGroupSize = new WorkSize(0);
     }
 
-    public String getName() {
+    public abstract String getName();
-        throw new UnsupportedOperationException("not supported yet");
-    }
 
-    public int getArgCount() {
+    public abstract int getArgCount();
-        throw new UnsupportedOperationException("not supported yet");
-    }
 
     public WorkSize getGlobalWorkSize() {
         return globalWorkSize;
@@ -103,55 +97,31 @@ public final class Kernel {
         workGroupSize.set(1, 0);
     }
 
-    public void setArg(int index, LocalMemPerElement t) {
+    public abstract void setArg(int index, LocalMemPerElement t);
-        throw new UnsupportedOperationException("not supported yet");
-    }
 
-    public void setArg(int index, LocalMem t) {
+    public abstract void setArg(int index, LocalMem t);
-        throw new UnsupportedOperationException("not supported yet");
-    }
 
-    public void setArg(int index, Buffer t) {
+    public abstract void setArg(int index, Buffer t);
-        throw new UnsupportedOperationException("not supported yet");
-    }
 
-    public void setArg(int index, byte b) {
+    public abstract void setArg(int index, byte b);
-        throw new UnsupportedOperationException("not supported yet");
-    }
 
-    public void setArg(int index, short s) {
+    public abstract void setArg(int index, short s);
-        throw new UnsupportedOperationException("not supported yet");
-    }
 
-    public void setArg(int index, int i) {
+    public abstract void setArg(int index, int i);
-        throw new UnsupportedOperationException("not supported yet");
-    }
 
-    public void setArg(int index, long l) {
+    public abstract void setArg(int index, long l);
-        throw new UnsupportedOperationException("not supported yet");
-    }
 
-    public void setArg(int index, float f) {
+    public abstract void setArg(int index, float f);
-        throw new UnsupportedOperationException("not supported yet");
-    }
 
-    public void setArg(int index, double d) {
+    public abstract void setArg(int index, double d);
-        throw new UnsupportedOperationException("not supported yet");
-    }
 
-    public void setArg(int index, Vector2f v) {
+    public abstract void setArg(int index, Vector2f v);
-        throw new UnsupportedOperationException("not supported yet");
-    }
   
-    //Vector3f not supported because cl_float3 is the same as a float4
+    public abstract void setArg(int index, Vector4f v);
 
-    public void setArg(int index, Vector4f v) {
+    public abstract void setArg(int index, Quaternion q);
-        throw new UnsupportedOperationException("not supported yet");
-    }
     
-    public void setArg(int index, Quaternion q) {
+    public abstract void setArg(int index, ByteBuffer buffer, long size);
-        throw new UnsupportedOperationException("not supported yet");
-    }
 
     public void setArg(int index, Object arg) {
         if (arg instanceof Byte) {
@@ -189,9 +159,7 @@ public final class Kernel {
         }
     }
 
-    public Event Run(CommandQueue queue) {
+    public abstract Event Run(CommandQueue queue);
-        throw new UnsupportedOperationException("not supported yet");
-    }
 
     public Event Run1(CommandQueue queue, WorkSize globalWorkSize, Object... args) {
         setGlobalWorkSize(globalWorkSize);
@@ -208,9 +176,4 @@ public final class Kernel {
         return Run(queue);
     }
 
-    @Override
-    public void deleteObject() {
-        throw new UnsupportedOperationException("Not supported yet.");
-    }
-*/
 }

jme3-core/src/main/java/com/jme3/opencl/OpenCLException.java

@@ -35,7 +35,7 @@ package com.jme3.opencl;
  *
  * @author Sebastian Weiss
  */
-public class OpenCLException extends Exception {
+public class OpenCLException extends RuntimeException {
 
 	private final int errorCode;
 	

jme3-core/src/main/java/com/jme3/opencl/Program.java

@@ -35,22 +35,11 @@ package com.jme3.opencl;
  *
  * @author Sebastian Weiss
  */
-public final class Program {
+public interface Program {
-	private final long program;
 	
-	public Program(long program) {
+	void build(String args) throws KernelCompilationException;
-		this.program = program;
+	void build() throws KernelCompilationException;
-	}
 
-	public void build(String args) {
+	Kernel createKernel(String name);
-		throw new UnsupportedOperationException("not supported yet");
-	}
-	public void build() {
-		build(null);
-	}
-
-	public Kernel createKernel(String name) {
-		throw new UnsupportedOperationException("not supported yet");
-	}
 	
 }

jme3-examples/src/main/java/jme3test/gui/opencl/HelloOpenCL.java

@@ -32,19 +32,24 @@
 
 package jme3test.gui.opencl;
 
-import jme3test.helloworld.*;
 import com.jme3.app.SimpleApplication;
-import com.jme3.material.Material;
+import com.jme3.font.BitmapFont;
-import com.jme3.math.ColorRGBA;
+import com.jme3.font.BitmapText;
-import com.jme3.math.Vector3f;
+import com.jme3.opencl.Buffer;
-import com.jme3.scene.Geometry;
+import com.jme3.opencl.CommandQueue;
-import com.jme3.scene.shape.Box;
+import com.jme3.opencl.Context;
+import com.jme3.opencl.Event;
 import com.jme3.system.AppSettings;
+import com.jme3.util.BufferUtils;
+import java.nio.ByteBuffer;
+import java.util.logging.Level;
+import java.util.logging.Logger;
 
 /** Sample 1 - how to get started with the most simple JME 3 application.
  * Display a blue 3D cube and view from all sides by
  * moving the mouse and pressing the WASD keys. */
 public class HelloOpenCL extends SimpleApplication {
+    private static final Logger LOG = Logger.getLogger(HelloOpenCL.class.getName());
 
     public static void main(String[] args){
         HelloOpenCL app = new HelloOpenCL();
@@ -56,12 +61,80 @@ public class HelloOpenCL extends SimpleApplication {
 
     @Override
     public void simpleInitApp() {
-        Box b = new Box(1, 1, 1); // create cube shape
+        BitmapFont fnt = assetManager.loadFont("Interface/Fonts/Default.fnt");
-        Geometry geom = new Geometry("Box", b);  // create cube geometry from the shape
+        Context clContext = context.getOpenCLContext();
-        Material mat = new Material(assetManager,
+        if (clContext == null) {
-          "Common/MatDefs/Misc/Unshaded.j3md");  // create a simple material
+            BitmapText txt = new BitmapText(fnt);
-        mat.setColor("Color", ColorRGBA.Blue);   // set color of material to blue
+            txt.setText("No OpenCL Context created!\nSee output log for details.");
-        geom.setMaterial(mat);                   // set the cube's material
+            txt.setLocalTranslation(5, settings.getHeight() - 5, 0);
-        rootNode.attachChild(geom);              // make the cube appear in the scene
+            guiNode.attachChild(txt);
+            return;
+        }
+        CommandQueue clQueue = clContext.createQueue();
+        
+        StringBuilder str = new StringBuilder();
+        str.append("OpenCL Context created:\n  Platform: ")
+                .append(clContext.getDevices().get(0).getPlatform().getName())
+                .append("\n  Devices: ").append(clContext.getDevices());
+        str.append("\nTests:");
+        str.append("\n  Buffers: ").append(testBuffer(clContext, clQueue));
+        
+        BitmapText txt1 = new BitmapText(fnt);
+        txt1.setText(str.toString());
+        txt1.setLocalTranslation(5, settings.getHeight() - 5, 0);
+        guiNode.attachChild(txt1);
+    }
+    
+    private boolean testBuffer(Context clContext, CommandQueue clQueue) {
+        try {
+            //create two buffers
+            ByteBuffer h1 = BufferUtils.createByteBuffer(256);
+            Buffer b1 = clContext.createBuffer(256);
+            ByteBuffer h2 = BufferUtils.createByteBuffer(256);
+            Buffer b2 = clContext.createBuffer(256);
+
+            //fill buffer
+            h2.rewind();
+            for (int i=0; i<256; ++i) {
+                h2.put((byte)i);
+            }
+            h2.rewind();
+            b2.write(clQueue, h2);
+            
+            //copy b2 to b1
+            b2.copyTo(clQueue, b1);
+            
+            //read buffer
+            h1.rewind();
+            b1.read(clQueue, h1);
+            h1.rewind();
+            for (int i=0; i<256; ++i) {
+                byte b = h1.get();
+                if (b != (byte)i) {
+                    System.err.println("Wrong byte read: expected="+i+", actual="+b);
+                    return false;
+                }
+            }
+            
+            //read buffer with offset
+            int low = 26;
+            int high = 184;
+            h1.position(5);
+            Event event = b1.readAsync(clQueue, h1, high-low, low);
+            event.waitForFinished();
+            h1.position(5);
+            for (int i=0; i<high-low; ++i) {
+                byte b = h1.get();
+                if (b != (byte)(i+low)) {
+                    System.err.println("Wrong byte read: expected="+(i+low)+", actual="+b);
+                    return false;
+                }
+            }
+        
+        } catch (Exception ex) {
+            LOG.log(Level.SEVERE, "Buffer test failed with:", ex);
+            return false;
+        }
+        return true;
     }
 }

jme3-lwjgl/src/main/java/com/jme3/opencl/lwjgl/LwjglBuffer.java

@@ -0,0 +1,220 @@
+/*
+ * Copyright (c) 2009-2016 jMonkeyEngine
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ * * Redistributions of source code must retain the above copyright
+ *   notice, this list of conditions and the following disclaimer.
+ *
+ * * Redistributions in binary form must reproduce the above copyright
+ *   notice, this list of conditions and the following disclaimer in the
+ *   documentation and/or other materials provided with the distribution.
+ *
+ * * Neither the name of 'jMonkeyEngine' nor the names of its contributors
+ *   may be used to endorse or promote products derived from this software
+ *   without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
+ * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+ * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
+ * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+ * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+package com.jme3.opencl.lwjgl;
+
+import com.jme3.opencl.*;
+import java.nio.ByteBuffer;
+import org.lwjgl.opencl.CL10;
+import org.lwjgl.opencl.CLCommandQueue;
+import org.lwjgl.opencl.CLEvent;
+import org.lwjgl.opencl.CLMem;
+
+/**
+ *
+ * @author Sebastian Weiss
+ */
+public class LwjglBuffer implements Buffer {
+
+    private final CLMem buffer;
+
+    public LwjglBuffer(CLMem buffer) {
+        this.buffer = buffer;
+    }
+    public CLMem getBuffer() {
+        return buffer;
+    }
+    
+    @Override
+    public int getSize() {
+        return buffer.getInfoInt(CL10.CL_MEM_SIZE);
+    }
+
+    @Override
+    public MemoryAccess getMemoryAccessFlags() {
+        return Utils.getMemoryAccessFromFlag(buffer.getInfoLong(CL10.CL_MEM_FLAGS));
+    }
+
+    @Override
+    public void read(CommandQueue queue, ByteBuffer dest, int size, int offset) {
+        //Note: LWJGL does not support the size parameter, I have to set the buffer limit
+        dest.limit(dest.position() + size);
+        int ret = CL10.clEnqueueReadBuffer(((LwjglCommandQueue)queue).getQueue(), 
+                buffer, CL10.CL_TRUE, offset, dest, null, null);
+        Utils.checkError(ret, "clEnqueueReadBuffer");
+    }
+
+    @Override
+    public void read(CommandQueue queue, ByteBuffer dest, int size) {
+        read(queue, dest, size, 0);
+    }
+
+    @Override
+    public void read(CommandQueue queue, ByteBuffer dest) {
+        read(queue, dest, getSize());
+    }
+
+    @Override
+    public Event readAsync(CommandQueue queue, ByteBuffer dest, int size, int offset) {
+        //Note: LWJGL does not support the size parameter, I have to set the buffer limit
+        dest.limit(dest.position() + size);
+        Utils.pointerBuffers[0].rewind();
+        CLCommandQueue q = ((LwjglCommandQueue)queue).getQueue();
+        int ret = CL10.clEnqueueReadBuffer(q, buffer, CL10.CL_FALSE, offset, dest, null, Utils.pointerBuffers[0]);
+        Utils.checkError(ret, "clEnqueueReadBuffer");
+        long event = Utils.pointerBuffers[0].get(0);
+        return new LwjglEvent(q.getCLEvent(event));
+    }
+
+    @Override
+    public Event readAsync(CommandQueue queue, ByteBuffer dest, int size) {
+        return readAsync(queue, dest, size, 0);
+    }
+
+    @Override
+    public Event readAsync(CommandQueue queue, ByteBuffer dest) {
+        return readAsync(queue, dest, getSize());
+    }
+
+    @Override
+    public void write(CommandQueue queue, ByteBuffer src, int size, int offset) {
+        //Note: LWJGL does not support the size parameter, I have to set the buffer limit
+        src.limit(src.position() + size);
+        CLCommandQueue q = ((LwjglCommandQueue)queue).getQueue();
+        int ret = CL10.clEnqueueWriteBuffer(q, buffer, CL10.CL_TRUE, offset, src, null, null);
+        Utils.checkError(ret, "clEnqueueWriteBuffer");
+    }
+
+    @Override
+    public void write(CommandQueue queue, ByteBuffer src, int size) {
+        write(queue, src, size, 0);
+    }
+
+    @Override
+    public void write(CommandQueue queue, ByteBuffer src) {
+        write(queue, src, getSize());
+    }
+
+    @Override
+    public Event writeAsync(CommandQueue queue, ByteBuffer src, int size, int offset) {
+        //Note: LWJGL does not support the size parameter, I have to set the buffer limit
+        src.limit(src.position() + size);
+        Utils.pointerBuffers[0].rewind();
+        CLCommandQueue q = ((LwjglCommandQueue)queue).getQueue();
+        int ret = CL10.clEnqueueWriteBuffer(q, buffer, CL10.CL_FALSE, offset, src, null, Utils.pointerBuffers[0]);
+        Utils.checkError(ret, "clEnqueueWriteBuffer");
+        long event = Utils.pointerBuffers[0].get(0);
+        return new LwjglEvent(q.getCLEvent(event));
+    }
+
+    @Override
+    public Event writeAsync(CommandQueue queue, ByteBuffer src, int size) {
+        return writeAsync(queue, src, size, 0);
+    }
+
+    @Override
+    public Event writeAsync(CommandQueue queue, ByteBuffer src) {
+        return writeAsync(queue, src, getSize());
+    }
+
+    @Override
+    public void copyTo(CommandQueue queue, Buffer dest, int size, int srcOffset, int destOffset) {
+        CLCommandQueue q = ((LwjglCommandQueue)queue).getQueue();
+        Utils.pointerBuffers[0].rewind();
+        int ret = CL10.clEnqueueCopyBuffer(q, buffer, ((LwjglBuffer) dest).buffer, srcOffset, destOffset, size, null, Utils.pointerBuffers[0]);
+        Utils.checkError(ret, "clEnqueueCopyBuffer");
+        long event = Utils.pointerBuffers[0].get(0);
+        ret = CL10.clWaitForEvents(q.getCLEvent(event));
+        Utils.checkError(ret, "clWaitForEvents");
+    }
+
+    @Override
+    public void copyTo(CommandQueue queue, Buffer dest, int size) {
+        copyTo(queue, dest, size, 0, 0);
+    }
+
+    @Override
+    public void copyTo(CommandQueue queue, Buffer dest) {
+        copyTo(queue, dest, getSize());
+    }
+
+    @Override
+    public Event copyToAsync(CommandQueue queue, Buffer dest, int size, int srcOffset, int destOffset) {
+        CLCommandQueue q = ((LwjglCommandQueue)queue).getQueue();
+        Utils.pointerBuffers[0].rewind();
+        int ret = CL10.clEnqueueCopyBuffer(q, buffer, ((LwjglBuffer) dest).buffer, srcOffset, destOffset, size, null, Utils.pointerBuffers[0]);
+        Utils.checkError(ret, "clEnqueueCopyBuffer");
+        long event = Utils.pointerBuffers[0].get(0);
+        return new LwjglEvent(q.getCLEvent(event));
+    }
+
+    @Override
+    public Event copyToAsync(CommandQueue queue, Buffer dest, int size) {
+        return copyToAsync(queue, dest, size, 0, 0);
+    }
+
+    @Override
+    public Event copyToAsync(CommandQueue queue, Buffer dest) {
+        return copyToAsync(queue, dest, getSize());
+    }
+
+    @Override
+    public ByteBuffer map(CommandQueue queue, int size, int offset, MappingAccess access) {
+        CLCommandQueue q = ((LwjglCommandQueue) queue).getQueue();
+        long flags = Utils.getMappingAccessFlags(access);
+        Utils.errorBuffer.rewind();
+        ByteBuffer b = CL10.clEnqueueMapBuffer(q, buffer, CL10.CL_TRUE, flags, offset, size, null, null, Utils.errorBuffer);
+        Utils.checkError(Utils.errorBuffer, "clEnqueueMapBuffer");
+        return b;
+    }
+
+    @Override
+    public ByteBuffer map(CommandQueue queue, int size, MappingAccess access) {
+        return map(queue, size, 0, access);
+    }
+
+    @Override
+    public ByteBuffer map(CommandQueue queue, MappingAccess access) {
+        return map(queue, getSize(), access);
+    }
+
+    @Override
+    public void unmap(CommandQueue queue, ByteBuffer ptr) {
+        CLCommandQueue q = ((LwjglCommandQueue) queue).getQueue();
+        Utils.pointerBuffers[0].rewind();
+        int ret = CL10.clEnqueueUnmapMemObject(q, buffer, ptr, null, Utils.pointerBuffers[0]);
+        Utils.checkError(ret, "clEnqueueUnmapMemObject");
+        long event = Utils.pointerBuffers[0].get(0);
+        ret = CL10.clWaitForEvents(q.getCLEvent(event));
+        Utils.checkError(ret, "clWaitForEvents");
+    }
+    
+}

jme3-lwjgl/src/main/java/com/jme3/opencl/lwjgl/LwjglCL.java

@@ -1,236 +0,0 @@
-/*
- * Copyright (c) 2009-2016 jMonkeyEngine
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions are
- * met:
- *
- * * Redistributions of source code must retain the above copyright
- *   notice, this list of conditions and the following disclaimer.
- *
- * * Redistributions in binary form must reproduce the above copyright
- *   notice, this list of conditions and the following disclaimer in the
- *   documentation and/or other materials provided with the distribution.
- *
- * * Neither the name of 'jMonkeyEngine' nor the names of its contributors
- *   may be used to endorse or promote products derived from this software
- *   without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
- * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
- * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
- * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
- * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
- * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
- * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
- * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
- * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
- * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- */
-package com.jme3.opencl.lwjgl;
-
-import com.jme3.opencl.Context;
-import com.jme3.opencl.KernelCompilationException;
-import com.jme3.opencl.MappingAccess;
-import com.jme3.opencl.MemoryAccess;
-import java.nio.ByteBuffer;
-
-/**
- *
- * @author Sebastian Weiss
- */
-public class LwjglCL implements com.jme3.opencl.CL {
-
-    @Override
-    public TempBuffer[] getTempBuffers() {
-        throw new UnsupportedOperationException("Not supported yet.");
-    }
-
-    @Override
-    public long getContext() {
-        throw new UnsupportedOperationException("Not supported yet.");
-    }
-
-    @Override
-    public long clCreateCommandQueue(long context, long device, boolean profiling) {
-        throw new UnsupportedOperationException("Not supported yet.");
-    }
-
-    @Override
-    public void clReleaseCommandQueue(long queue) {
-        throw new UnsupportedOperationException("Not supported yet.");
-    }
-
-    @Override
-    public long clCreateBuffer(long context, MemoryAccess access, int size, ByteBuffer hostPtr) {
-        throw new UnsupportedOperationException("Not supported yet.");
-    }
-
-    @Override
-    public long clEnqueueReadBuffer(long queue, long buffer, boolean blocking, int offset, int size, ByteBuffer ptr) {
-        throw new UnsupportedOperationException("Not supported yet.");
-    }
-
-    @Override
-    public long clEnqueueWriteBuffer(long queue, long buffer, boolean blocking, int offset, int size, ByteBuffer ptr) {
-        throw new UnsupportedOperationException("Not supported yet.");
-    }
-
-    @Override
-    public long clEnqueueCopyBuffer(long queue, long srcBuffer, long dstBuffer, int srcOffset, int dstOffset, int size) {
-        throw new UnsupportedOperationException("Not supported yet.");
-    }
-
-    @Override
-    public long clEnqueueFillBuffer(long queue, long buffer, ByteBuffer pattern, int patternSize, int offset, int size) {
-        throw new UnsupportedOperationException("Not supported yet.");
-    }
-
-    @Override
-    public long clEnqueueMapBuffer(long queue, long buffer, boolean blocking, MappingAccess flags, int offset, int size) {
-        throw new UnsupportedOperationException("Not supported yet.");
-    }
-
-    @Override
-    public long clCreateImage(long context, MemoryAccess access, Context.ImageFormat format, Context.ImageDescriptor desc, ByteBuffer ptr) {
-        throw new UnsupportedOperationException("Not supported yet.");
-    }
-
-    @Override
-    public Context.ImageFormat[] clGetSupportedImageFormats(long context, MemoryAccess ma, Context.ImageType type) {
-        throw new UnsupportedOperationException("Not supported yet.");
-    }
-
-    @Override
-    public long clEnqueueReadImage(long queue, long image, boolean blocking, ByteBuffer origin, ByteBuffer region, int rowPitch, int slicePitch, ByteBuffer ptr) {
-        throw new UnsupportedOperationException("Not supported yet.");
-    }
-
-    @Override
-    public long clEnqueueWriteImage(long queue, long image, boolean blocking, ByteBuffer origin, ByteBuffer region, int inputRowPitch, int intputSlicePitch, ByteBuffer ptr) {
-        throw new UnsupportedOperationException("Not supported yet.");
-    }
-
-    @Override
-    public long clEnqueueCopyImage(long queue, long srcImage, long dstImage, ByteBuffer srcOrigin, ByteBuffer dstOrigin, ByteBuffer region) {
-        throw new UnsupportedOperationException("Not supported yet.");
-    }
-
-    @Override
-    public long clEnqueueFillImage(long queue, long image, ByteBuffer fillColor, ByteBuffer origin, ByteBuffer region) {
-        throw new UnsupportedOperationException("Not supported yet.");
-    }
-
-    @Override
-    public long clEnqueueCopyImageToBuffer(long queue, long srcImage, long dstBuffer, ByteBuffer srcOrigin, ByteBuffer region, int dstOffset) {
-        throw new UnsupportedOperationException("Not supported yet.");
-    }
-
-    @Override
-    public long clEnqueueCopyBufferToImage(long queue, long srcBuffer, long dstImage, int srcOffset, ByteBuffer dstOrigin, ByteBuffer region) {
-        throw new UnsupportedOperationException("Not supported yet.");
-    }
-
-    @Override
-    public long clEnqueueMapImage(long queue, long image, boolean blocking, MappingAccess ma, ByteBuffer origin, ByteBuffer region, int rowPitch, int slicePitch) {
-        throw new UnsupportedOperationException("Not supported yet.");
-    }
-
-    @Override
-    public void clReleaseMemObject(long mem) {
-        throw new UnsupportedOperationException("Not supported yet.");
-    }
-
-    @Override
-    public long clEnqueueUnmapMemObject(long queue, long mem, ByteBuffer ptr) {
-        throw new UnsupportedOperationException("Not supported yet.");
-    }
-
-    @Override
-    public int getMemSize(long mem) {
-        throw new UnsupportedOperationException("Not supported yet.");
-    }
-
-    @Override
-    public long clCreateProgramWithSource(long context, CharSequence[] sources) {
-        throw new UnsupportedOperationException("Not supported yet.");
-    }
-
-    @Override
-    public long clReleaseProgram(long program) {
-        throw new UnsupportedOperationException("Not supported yet.");
-    }
-
-    @Override
-    public void clBuildProgram(long program, long[] devices, CharSequence optpions) throws KernelCompilationException {
-        throw new UnsupportedOperationException("Not supported yet.");
-    }
-
-    @Override
-    public String getKernelNames(long program) {
-        throw new UnsupportedOperationException("Not supported yet.");
-    }
-
-    @Override
-    public long clCreateKernel(long program, String kernelName) {
-        throw new UnsupportedOperationException("Not supported yet.");
-    }
-
-    @Override
-    public void clReleaseKernel(long kernel) {
-        throw new UnsupportedOperationException("Not supported yet.");
-    }
-
-    @Override
-    public void clSetKernelArg(long kernel, int argIndex, int argSize, ByteBuffer argValue) {
-        throw new UnsupportedOperationException("Not supported yet.");
-    }
-
-    @Override
-    public String getKernelName(long kernel) {
-        throw new UnsupportedOperationException("Not supported yet.");
-    }
-
-    @Override
-    public int getKernelNumArgs(long kernel) {
-        throw new UnsupportedOperationException("Not supported yet.");
-    }
-
-    @Override
-    public long clEnqueueNDRangeKernel(long queue, long kernel, int workDim, ByteBuffer globalWorkOffset, ByteBuffer globalWorkSize, ByteBuffer localWorkSize) {
-        throw new UnsupportedOperationException("Not supported yet.");
-    }
-
-    @Override
-    public void clWaitForEvents(long[] events) {
-        throw new UnsupportedOperationException("Not supported yet.");
-    }
-
-    @Override
-    public void clWaitForEvent(long event) {
-        throw new UnsupportedOperationException("Not supported yet.");
-    }
-
-    @Override
-    public boolean isEventCompleted(long event) {
-        throw new UnsupportedOperationException("Not supported yet.");
-    }
-
-    @Override
-    public void clReleaseEvent(long event) {
-        throw new UnsupportedOperationException("Not supported yet.");
-    }
-
-    @Override
-    public void clFlush(long queue) {
-        throw new UnsupportedOperationException("Not supported yet.");
-    }
-
-    @Override
-    public void clFinish(long queue) {
-        throw new UnsupportedOperationException("Not supported yet.");
-    }
-    
-}

jme3-lwjgl/src/main/java/com/jme3/opencl/lwjgl/LwjglCommandQueue.java

@@ -0,0 +1,66 @@
+/*
+ * Copyright (c) 2009-2016 jMonkeyEngine
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ * * Redistributions of source code must retain the above copyright
+ *   notice, this list of conditions and the following disclaimer.
+ *
+ * * Redistributions in binary form must reproduce the above copyright
+ *   notice, this list of conditions and the following disclaimer in the
+ *   documentation and/or other materials provided with the distribution.
+ *
+ * * Neither the name of 'jMonkeyEngine' nor the names of its contributors
+ *   may be used to endorse or promote products derived from this software
+ *   without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
+ * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+ * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
+ * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+ * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+package com.jme3.opencl.lwjgl;
+
+import com.jme3.opencl.CommandQueue;
+import org.lwjgl.opencl.CL10;
+import org.lwjgl.opencl.CLCommandQueue;
+
+/**
+ *
+ * @author Sebastian Weiss
+ */
+public class LwjglCommandQueue implements CommandQueue {
+
+    private final CLCommandQueue queue;
+
+    public LwjglCommandQueue(CLCommandQueue queue) {
+        this.queue = queue;
+    }
+    
+    public CLCommandQueue getQueue() {
+        return queue;
+    }
+    
+    @Override
+    public void flush() {
+        int ret = CL10.clFlush(queue);
+        Utils.checkError(ret, "clFlush");
+    }
+
+    @Override
+    public void finish() {
+        int ret = CL10.clFinish(queue);
+        Utils.checkError(ret, "clFinish");
+    }
+    
+}

jme3-lwjgl/src/main/java/com/jme3/opencl/lwjgl/LwjglContext.java

@@ -36,7 +36,7 @@ import com.jme3.scene.VertexBuffer;
 import com.jme3.scene.mesh.IndexBuffer;
 import java.nio.ByteBuffer;
 import java.util.List;
-import org.lwjgl.opencl.CLContext;
+import org.lwjgl.opencl.*;
 
 /**
  *
@@ -44,9 +44,11 @@ import org.lwjgl.opencl.CLContext;
  */
 public class LwjglContext implements Context {
     private final CLContext context;
+    private final List<LwjglDevice> devices;
 
-    public LwjglContext(CLContext context) {
+    public LwjglContext(CLContext context, List<LwjglDevice> devices) {
         this.context = context;
+        this.devices = devices;
     }
 
     public CLContext getContext() {
@@ -55,37 +57,50 @@ public class LwjglContext implements Context {
 
     @Override
     public List<? extends Device> getDevices() {
-        throw new UnsupportedOperationException("Not supported yet.");
+        return devices;
     }
 
     @Override
     public CommandQueue createQueue() {
-        throw new UnsupportedOperationException("Not supported yet.");
+        return createQueue(devices.get(0));
     }
 
     @Override
+    @SuppressWarnings("element-type-mismatch")
     public CommandQueue createQueue(Device device) {
-        throw new UnsupportedOperationException("Not supported yet.");
+        assert (devices.contains(device)); //this also ensures that device is a LwjglDevice
+        CLDevice d = ((LwjglDevice) device).getDevice();
+        long properties = 0;
+        CLCommandQueue q = CL10.clCreateCommandQueue(context, d, properties, Utils.errorBuffer);
+        Utils.checkError(Utils.errorBuffer, "clCreateCommandQueue");
+        return new LwjglCommandQueue(q);
     }
     
     @Override
     public Buffer createBuffer(int size, MemoryAccess access) {
-        throw new UnsupportedOperationException("Not supported yet.");
+        long flags = Utils.getMemoryAccessFlags(access);
+        CLMem mem = CL10.clCreateBuffer(context, flags, (long) size, Utils.errorBuffer);
+        Utils.checkError(Utils.errorBuffer, "clCreateBuffer");
+        return new LwjglBuffer(mem);
     }
 
     @Override
     public Buffer createBuffer(int size) {
-        throw new UnsupportedOperationException("Not supported yet.");
+        return createBuffer(size, MemoryAccess.READ_WRITE);
     }
 
     @Override
-    public Buffer useHostBuffer(ByteBuffer data, int size, MemoryAccess access) {
+    public Buffer createBufferFromHost(ByteBuffer data, MemoryAccess access) {
-        throw new UnsupportedOperationException("Not supported yet.");
+        long flags = Utils.getMemoryAccessFlags(access);
+        flags |= CL10.CL_MEM_USE_HOST_PTR;
+        CLMem mem = CL10.clCreateBuffer(context, flags, data, Utils.errorBuffer);
+        Utils.checkError(Utils.errorBuffer, "clCreateBuffer");
+        return new LwjglBuffer(mem);
     }
 
     @Override
-    public Buffer useHostBuffer(ByteBuffer data, int size) {
+    public Buffer createBufferFromHost(ByteBuffer data) {
-        throw new UnsupportedOperationException("Not supported yet.");
+        return createBufferFromHost(data, MemoryAccess.READ_WRITE);
     }
 
     @Override

jme3-lwjgl/src/main/java/com/jme3/opencl/lwjgl/LwjglEvent.java

@@ -0,0 +1,71 @@
+/*
+ * Copyright (c) 2009-2016 jMonkeyEngine
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ * * Redistributions of source code must retain the above copyright
+ *   notice, this list of conditions and the following disclaimer.
+ *
+ * * Redistributions in binary form must reproduce the above copyright
+ *   notice, this list of conditions and the following disclaimer in the
+ *   documentation and/or other materials provided with the distribution.
+ *
+ * * Neither the name of 'jMonkeyEngine' nor the names of its contributors
+ *   may be used to endorse or promote products derived from this software
+ *   without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
+ * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+ * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
+ * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+ * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+package com.jme3.opencl.lwjgl;
+
+import com.jme3.opencl.Event;
+import org.lwjgl.opencl.CL10;
+import org.lwjgl.opencl.CLEvent;
+
+/**
+ *
+ * @author Sebastian Weiss
+ */
+public class LwjglEvent implements Event {
+    private final CLEvent event;
+
+    public LwjglEvent(CLEvent event) {
+        this.event = event;
+    }
+
+    public CLEvent getEvent() {
+        return event;
+    }
+
+    @Override
+    public void waitForFinished() {
+        CL10.clWaitForEvents(event);
+    }
+
+    @Override
+    public boolean isCompleted() {
+        int status = event.getInfoInt(CL10.CL_EVENT_COMMAND_EXECUTION_STATUS);
+        if (status == CL10.CL_SUCCESS) {
+            return true;
+        } else if (status < 0) {
+            Utils.checkError(status, "EventStatus");
+            return false;
+        } else {
+            return false;
+        }
+    }
+    
+}

jme3-lwjgl/src/main/java/com/jme3/opencl/lwjgl/Utils.java

@@ -31,6 +31,17 @@
  */
 package com.jme3.opencl.lwjgl;
 
+import com.jme3.opencl.MappingAccess;
+import com.jme3.opencl.MemoryAccess;
+import com.jme3.opencl.OpenCLException;
+import java.nio.*;
+import org.lwjgl.BufferUtils;
+import org.lwjgl.LWJGLUtil;
+import org.lwjgl.PointerBuffer;
+import org.lwjgl.opencl.CL10;
+import org.lwjgl.opencl.CL12;
+import org.lwjgl.opencl.Util;
+
 /**
  *
  * @author Sebastian Weiss
@@ -48,4 +59,70 @@ public class Utils {
         s = s.substring((int) (Math.log10(major) + 2));
         return Integer.parseInt(s);
     }
+    
+    public static final class TempBuffer {
+        public final ByteBuffer b16;
+        public final ShortBuffer b16s;
+        public final IntBuffer b16i;
+        public final LongBuffer b16l;
+        public final FloatBuffer b16f;
+        public final DoubleBuffer b16d;
+        public TempBuffer() {
+            b16 = BufferUtils.createByteBuffer(16);
+            b16s = b16.asShortBuffer();
+            b16i = b16.asIntBuffer();
+            b16l = b16.asLongBuffer();
+            b16f = b16.asFloatBuffer();
+            b16d = b16.asDoubleBuffer();
+        }
+    }
+    public static TempBuffer[] tempBuffers = new TempBuffer[8];
+    public static PointerBuffer[] pointerBuffers = new PointerBuffer[8];
+    static {
+        for (int i=0; i<8; ++i) {
+            tempBuffers[i] = new TempBuffer();
+            pointerBuffers[i] = PointerBuffer.allocateDirect(4);
+        }
+        errorBuffer = BufferUtils.createIntBuffer(1);
+    }
+    
+    public static IntBuffer errorBuffer;
+    public static void checkError(IntBuffer errorBuffer, String callName) {
+        checkError(errorBuffer.get(0), callName);
+    }
+    public static void checkError(int error, String callName) {
+        //TODO: proper handling
+        Util.checkCLError(error);
+    }
+    
+    public static long getMemoryAccessFlags(MemoryAccess ma) {
+        switch (ma) {
+            case READ_ONLY: return CL10.CL_MEM_READ_ONLY;
+            case WRITE_ONLY: return CL10.CL_MEM_WRITE_ONLY;
+            case READ_WRITE: return CL10.CL_MEM_READ_WRITE;
+            default: throw new IllegalArgumentException("Unknown memory access: "+ma);
+        }
+    }
+    public static MemoryAccess getMemoryAccessFromFlag(long flag) {
+        if ((flag & CL10.CL_MEM_READ_WRITE) > 0) {
+            return MemoryAccess.READ_WRITE;
+        }
+        if ((flag & CL10.CL_MEM_READ_ONLY) > 0) {
+            return MemoryAccess.READ_ONLY;
+        }
+        if ((flag & CL10.CL_MEM_WRITE_ONLY) > 0) {
+            return MemoryAccess.WRITE_ONLY;
+        }
+        throw new OpenCLException("Unknown memory access flag: "+flag);
+    }
+    
+    public static long getMappingAccessFlags(MappingAccess ma) {
+        switch (ma) {
+            case MAP_READ_ONLY: return CL10.CL_MAP_READ;
+            case MAP_READ_WRITE: return CL10.CL_MAP_READ | CL10.CL_MAP_WRITE;
+            case MAP_WRITE_ONLY: return CL10.CL_MAP_WRITE;
+            case MAP_WRITE_INVALIDATE: return CL12.CL_MAP_WRITE_INVALIDATE_REGION;
+            default: throw new IllegalArgumentException("Unknown mapping access: "+ma);
+        }
+    }
 }

jme3-lwjgl/src/main/java/com/jme3/system/lwjgl/LwjglContext.java

@@ -35,10 +35,8 @@ package com.jme3.system.lwjgl;
 import com.jme3.input.lwjgl.JInputJoyInput;
 import com.jme3.input.lwjgl.LwjglKeyInput;
 import com.jme3.input.lwjgl.LwjglMouseInput;
-import com.jme3.opencl.Context;
 import com.jme3.opencl.Device;
 import com.jme3.opencl.PlatformChooser;
-import com.jme3.opencl.lwjgl.LwjglCL;
 import com.jme3.opencl.lwjgl.LwjglDevice;
 import com.jme3.opencl.lwjgl.LwjglPlatform;
 import com.jme3.opencl.lwjgl.PlatformChooserImpl;
@@ -261,6 +259,7 @@ public abstract class LwjglContext implements JmeContext {
         
     }
 
+    @SuppressWarnings("unchecked")
     protected void initOpenCL() {
         logger.info("Initialize OpenCL wiht LWJGL2");
         
@@ -349,7 +348,8 @@ public abstract class LwjglContext implements JmeContext {
         
         //create context
         try {
-            clContext = new com.jme3.opencl.lwjgl.LwjglContext(CLContext.create(platform.getPlatform(), devices, null, Display.getDrawable(), null));
+            CLContext c = CLContext.create(platform.getPlatform(), devices, null, Display.getDrawable(), null);
+            clContext = new com.jme3.opencl.lwjgl.LwjglContext(c, (List<LwjglDevice>) choosenDevices);
         } catch (LWJGLException ex) {
             logger.log(Level.SEVERE, "Unable to create OpenCL context", ex);
             return;