changes due to package renaming in jocl.

1 files changed, 277 insertions, 0 deletions

diff --git a/src/com/jogamp/opencl/demos/joglinterop/GLCLInteroperabilityDemo.java b/src/com/jogamp/opencl/demos/joglinterop/GLCLInteroperabilityDemo.java
new file mode 100644
index 0000000..24af1fe
--- /dev/null
+++ b/src/com/jogamp/opencl/demos/joglinterop/GLCLInteroperabilityDemo.java
@@ -0,0 +1,277 @@
+package com.jogamp.opencl.demos.joglinterop;
+
+import com.jogamp.opencl.CLCommandQueue;
+import com.jogamp.opencl.CLDevice;
+import com.jogamp.opencl.gl.CLGLBuffer;
+import com.jogamp.opencl.gl.CLGLContext;
+import com.jogamp.opencl.CLKernel;
+import com.jogamp.opencl.CLPlatform;
+import com.jogamp.opencl.CLProgram;
+import com.jogamp.opengl.util.Animator;
+import java.io.IOException;
+import javax.media.opengl.DebugGL2;
+import javax.media.opengl.GL2;
+import javax.media.opengl.GLAutoDrawable;
+import javax.media.opengl.GLCapabilities;
+import javax.media.opengl.GLEventListener;
+import javax.media.opengl.GLProfile;
+import javax.media.opengl.awt.GLCanvas;
+import javax.media.opengl.glu.gl2.GLUgl2;
+import javax.swing.JFrame;
+import javax.swing.SwingUtilities;
+
+import static com.jogamp.common.nio.Buffers.*;
+
+/**
+ * JOCL - JOGL interoperability example.
+ * @author Michael Bien
+ */
+public class GLCLInteroperabilityDemo implements GLEventListener {
+
+    private final GLUgl2 glu = new GLUgl2();
+
+    private final int MESH_SIZE = 256;
+
+    private int width;
+    private int height;
+
+//    private final FloatBuffer vb;
+//    private final IntBuffer ib;
+
+    private final int[] glObjects = new int[2];
+    private final int VERTICES = 0;
+//    private final int INDICES  = 1;
+
+    private final UserSceneInteraction usi;
+
+    private CLGLContext clContext;
+    private CLKernel kernel;
+    private CLCommandQueue commandQueue;
+    private CLGLBuffer<?> clBuffer;
+
+    private float step = 0;
+
+    public GLCLInteroperabilityDemo() {
+
+        this.usi = new UserSceneInteraction();
+
+        // create direct memory buffers
+//        vb = newFloatBuffer(MESH_SIZE * MESH_SIZE * 4);
+//        ib = newIntBuffer((MESH_SIZE - 1) * (MESH_SIZE - 1) * 2 * 3);
+//
+//        // build indices
+//        //    0---3
+//        //    | \ |
+//        //    1---2
+//        for (int h = 0; h < MESH_SIZE - 1; h++) {
+//            for (int w = 0; w < MESH_SIZE - 1; w++) {
+//
+//                // 0 - 3 - 2
+//                ib.put(w * 6 + h * (MESH_SIZE - 1) * 6,      w + (h    ) * (MESH_SIZE)    );
+//                ib.put(w * 6 + h * (MESH_SIZE - 1) * 6 + 1,  w + (h    ) * (MESH_SIZE) + 1);
+//                ib.put(w * 6 + h * (MESH_SIZE - 1) * 6 + 2,  w + (h + 1) * (MESH_SIZE) + 1);
+//
+//                // 0 - 2 - 1
+//                ib.put(w * 6 + h * (MESH_SIZE - 1) * 6 + 3,  w + (h    ) * (MESH_SIZE)    );
+//                ib.put(w * 6 + h * (MESH_SIZE - 1) * 6 + 4,  w + (h + 1) * (MESH_SIZE) + 1);
+//                ib.put(w * 6 + h * (MESH_SIZE - 1) * 6 + 5,  w + (h + 1) * (MESH_SIZE)    );
+//
+//            }
+//        }
+//        ib.rewind();
+
+        SwingUtilities.invokeLater(new Runnable() {
+            public void run() {
+                initUI();
+            }
+        });
+
+    }
+
+    private void initUI() {
+
+        this.width  = 600;
+        this.height = 400;
+
+        GLCapabilities config = new GLCapabilities(GLProfile.get(GLProfile.GL2));
+        config.setSampleBuffers(true);
+        config.setNumSamples(4);
+
+        GLCanvas canvas = new GLCanvas(config);
+        canvas.addGLEventListener(this);
+        usi.init(canvas);
+
+        JFrame frame = new JFrame("JOGL-JOCL Interoperability Example");
+        frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
+        frame.add(canvas);
+        frame.setSize(width, height);
+
+        frame.setVisible(true);
+
+    }
+
+
+    public void init(GLAutoDrawable drawable) {
+
+        if(clContext == null) {
+
+            // find gl compatible device
+            CLDevice[] devices = CLPlatform.getDefault().listCLDevices();
+            CLDevice device = null;
+            for (CLDevice d : devices) {
+                if(d.isGLMemorySharingSupported()) {
+                    device = d;
+                    break;
+                }
+            }
+            // create OpenCL context before creating any OpenGL objects
+            // you want to share with OpenCL (AMD driver requirement)
+            clContext = CLGLContext.create(drawable.getContext(), device);
+
+            // enable GL error checking using the composable pipeline
+            drawable.setGL(new DebugGL2(drawable.getGL().getGL2()));
+
+            // OpenGL initialization
+            GL2 gl = drawable.getGL().getGL2();
+
+            gl.setSwapInterval(1);
+
+            gl.glPolygonMode(GL2.GL_FRONT_AND_BACK, GL2.GL_LINE);
+
+            gl.glGenBuffers(glObjects.length, glObjects, 0);
+
+    //        gl.glBindBuffer(GL2.GL_ELEMENT_ARRAY_BUFFER, glObjects[INDICES]);
+    //        gl.glBufferData(GL2.GL_ELEMENT_ARRAY_BUFFER, ib.capacity() * SIZEOF_INT, ib, GL2.GL_STATIC_DRAW);
+    //        gl.glBindBuffer(GL2.GL_ELEMENT_ARRAY_BUFFER, 0);
+
+            gl.glEnableClientState(GL2.GL_VERTEX_ARRAY);
+                gl.glBindBuffer(GL2.GL_ARRAY_BUFFER, glObjects[VERTICES]);
+                gl.glBufferData(GL2.GL_ARRAY_BUFFER, MESH_SIZE * MESH_SIZE * 4 * SIZEOF_FLOAT, null, GL2.GL_DYNAMIC_DRAW);
+                gl.glBindBuffer(GL2.GL_ARRAY_BUFFER, 0);
+            gl.glDisableClientState(GL2.GL_VERTEX_ARRAY);
+
+            pushPerspectiveView(gl);
+            gl.glFinish();
+
+            // init OpenCL
+            initCL();
+
+            // start rendering thread
+            Animator animator = new Animator(drawable);
+            animator.start();
+
+        }
+    }
+
+    private void initCL() {
+
+        CLProgram program;
+        try {
+            program = clContext.createProgram(getClass().getResourceAsStream("JoglInterop.cl"));
+            program.build();
+            System.out.println(program.getBuildStatus());
+            System.out.println(program.isExecutable());
+            System.out.println(program.getBuildLog());
+        } catch (IOException ex) {
+            throw new RuntimeException("can not handle exception", ex);
+        }
+
+        commandQueue = clContext.getMaxFlopsDevice().createCommandQueue();
+
+        clBuffer = clContext.createFromGLBuffer(glObjects[VERTICES], CLGLBuffer.Mem.WRITE_ONLY);
+
+        System.out.println("cl buffer type: " + clBuffer.getGLObjectType());
+        System.out.println("shared with gl buffer: " + clBuffer.getGLObjectID());
+
+        kernel = program.createCLKernel("sineWave")
+                        .putArg(clBuffer)
+                        .putArg(MESH_SIZE)
+                        .rewind();
+
+        System.out.println("cl initialised");
+    }
+
+
+    public void display(GLAutoDrawable drawable) {
+
+        GL2 gl = drawable.getGL().getGL2();
+
+        // ensure pipeline is clean before doing cl work
+        gl.glFinish();
+
+        computeHeightfield();
+
+        gl.glClear(GL2.GL_COLOR_BUFFER_BIT | GL2.GL_DEPTH_BUFFER_BIT);
+        gl.glLoadIdentity();
+
+        usi.interact(gl);
+
+        gl.glBindBuffer(GL2.GL_ARRAY_BUFFER, glObjects[VERTICES]);
+        gl.glVertexPointer(4, GL2.GL_FLOAT, 0, 0);
+
+//            gl.glBindBuffer(GL2.GL_ELEMENT_ARRAY_BUFFER, glObjects[INDICES]);
+
+        gl.glEnableClientState(GL2.GL_VERTEX_ARRAY);
+        gl.glDrawArrays(GL2.GL_POINTS, 0, MESH_SIZE * MESH_SIZE);
+//            gl.glDrawElements(GL2.GL_TRIANGLES, ib.capacity(), GL2.GL_UNSIGNED_INT, 0);
+        gl.glDisableClientState(GL2.GL_VERTEX_ARRAY);
+
+//            gl.glBindBuffer(GL2.GL_ARRAY_BUFFER, 0);
+
+    }
+
+    /*
+     * Computes a heightfield using a OpenCL kernel.
+     */
+    private void computeHeightfield() {
+
+        kernel.setArg(2, step += 0.05f);
+
+        commandQueue.putAcquireGLObject(clBuffer.ID)
+                    .put2DRangeKernel(kernel, 0, 0, MESH_SIZE, MESH_SIZE, 0, 0)
+                    .putReleaseGLObject(clBuffer.ID)
+                    .finish();
+
+    }
+
+    private void pushPerspectiveView(GL2 gl) {
+
+        gl.glMatrixMode(GL2.GL_PROJECTION);
+        gl.glPushMatrix();
+
+            gl.glLoadIdentity();
+
+            glu.gluPerspective(60, width / (float)height, 1, 1000);
+            gl.glMatrixMode(GL2.GL_MODELVIEW);
+
+            gl.glPushMatrix();
+                gl.glLoadIdentity();
+
+    }
+
+    private void popView(GL2 gl) {
+
+                gl.glMatrixMode(GL2.GL_PROJECTION);
+            gl.glPopMatrix();
+
+            gl.glMatrixMode(GL2.GL_MODELVIEW);
+        gl.glPopMatrix();
+
+    }
+
+
+    public void reshape(GLAutoDrawable drawable, int arg1, int arg2, int width, int height) {
+        this.width = width;
+        this.height = height;
+        GL2 gl = drawable.getGL().getGL2();
+        popView(gl);
+        pushPerspectiveView(gl);
+    }
+
+    public void dispose(GLAutoDrawable drawable) {  }
+
+    public static void main(String[] args) {
+        new GLCLInteroperabilityDemo();
+    }
+
+}
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