From cb7fa23952a10795215eda50848530828b92895e Mon Sep 17 00:00:00 2001
From: Michael Bien <mbien@fh-landshut.de>
Date: Mon, 19 Oct 2009 19:26:15 +0200
Subject: initial import of CLBuffer and CLKernel. added hashCode(), equals()
 and toString() methods. updated JUnit test to test new classes.

---
 src/com/mbien/opencl/CLKernel.java | 93 ++++++++++++++++++++++++++++++++++++++
 1 file changed, 93 insertions(+)
 create mode 100644 src/com/mbien/opencl/CLKernel.java

(limited to 'src/com/mbien/opencl/CLKernel.java')

diff --git a/src/com/mbien/opencl/CLKernel.java b/src/com/mbien/opencl/CLKernel.java
new file mode 100644
index 00000000..be5e03b6
--- /dev/null
+++ b/src/com/mbien/opencl/CLKernel.java
@@ -0,0 +1,93 @@
+package com.mbien.opencl;
+
+import com.sun.gluegen.runtime.BufferFactory;
+import java.nio.ByteBuffer;
+import java.nio.ByteOrder;
+import static com.mbien.opencl.CLException.*;
+
+/**
+ *
+ * @author Michael Bien
+ */
+public class CLKernel {
+
+    public final long kernelID;
+    public final String name;
+
+    private final CLProgram program;
+    private final CL cl;
+
+    CLKernel(CLProgram program, long id) {
+        this.kernelID = id;
+        this.program = program;
+        this.cl = program.context.cl;
+
+        long[] longArray = new long[1];
+
+        int ret = cl.clGetKernelInfo(kernelID, CL.CL_KERNEL_FUNCTION_NAME, 0, null, longArray, 0);
+        checkForError(ret, "error while asking for kernel function name");
+
+        ByteBuffer bb = ByteBuffer.allocate((int)longArray[0]).order(ByteOrder.nativeOrder());
+
+        ret = cl.clGetKernelInfo(kernelID, CL.CL_KERNEL_FUNCTION_NAME, bb.capacity(), bb, null, 0);
+        checkForError(ret, "error while asking for kernel function name");
+
+        this.name = new String(bb.array(), 0, (int)longArray[0]).trim();
+
+    }
+
+    public CLKernel setArg(int argumentIndex, int argumentSize, CLBuffer value) {
+        int ret = cl.clSetKernelArg(kernelID, argumentIndex, argumentSize, wrapLong(value.bufferID));
+        checkForError(ret, "error on clSetKernelArg");
+        return this;
+    }
+
+    public CLKernel setArg(int argumentIndex, int argumentSize, long value) {
+        int ret = cl.clSetKernelArg(kernelID, argumentIndex, argumentSize, wrapLong(value));
+        checkForError(ret, "error on clSetKernelArg");
+        return this;
+    }
+
+    private final ByteBuffer wrapLong(long value) {
+        return (ByteBuffer) BufferFactory.newDirectByteBuffer(8).putLong(value).rewind();
+    }
+
+    public CLKernel release() {
+        cl.clReleaseKernel(kernelID);
+        program.kernelReleased(this);
+        return this;
+    }
+
+    @Override
+    public String toString() {
+        return "CLKernel [id: " + kernelID
+                      + " name: " + name+"]";
+    }
+
+    @Override
+    public boolean equals(Object obj) {
+        if (obj == null) {
+            return false;
+        }
+        if (getClass() != obj.getClass()) {
+            return false;
+        }
+        final CLKernel other = (CLKernel) obj;
+        if (this.kernelID != other.kernelID) {
+            return false;
+        }
+        if (!this.program.equals(other.program)) {
+            return false;
+        }
+        return true;
+    }
+
+    @Override
+    public int hashCode() {
+        int hash = 7;
+        hash = 43 * hash + (int) (this.kernelID ^ (this.kernelID >>> 32));
+        hash = 43 * hash + (this.program != null ? this.program.hashCode() : 0);
+        return hash;
+    }
+
+}
-- 
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