From bc4e1521cc2ccc91a033998847dc35e1a8c8687b Mon Sep 17 00:00:00 2001
From: Michael Bien <mbien@fh-landshut.de>
Date: Thu, 2 Sep 2010 23:45:05 +0200
Subject: CLMemObjectDestructorCallback for HLB and LLB.

---
 src/com/jogamp/opencl/CLMemObjectListener.java        | 19 +++++++++++++++++++
 src/com/jogamp/opencl/CLMemory.java                   | 13 +++++++++++++
 src/com/jogamp/opencl/impl/CLImpl.java                | 12 ++++++++++++
 .../opencl/impl/CLMemObjectDestructorCallback.java    | 19 +++++++++++++++++++
 4 files changed, 63 insertions(+)
 create mode 100644 src/com/jogamp/opencl/CLMemObjectListener.java
 create mode 100644 src/com/jogamp/opencl/impl/CLMemObjectDestructorCallback.java

(limited to 'src/com/jogamp/opencl')

diff --git a/src/com/jogamp/opencl/CLMemObjectListener.java b/src/com/jogamp/opencl/CLMemObjectListener.java
new file mode 100644
index 00000000..4ee32b9f
--- /dev/null
+++ b/src/com/jogamp/opencl/CLMemObjectListener.java
@@ -0,0 +1,19 @@
+/*
+ * Created on Tuesday, July 06 2010 00:46
+ */
+
+package com.jogamp.opencl;
+
+/**
+ * A callback which is invoked by the OpenCL implementation when the memory
+ * object is deleted and its resources freed.
+ * @author Michael Bien
+ */
+public interface CLMemObjectListener {
+
+    /**
+     * 
+     */
+    public void memoryDeallocated(CLMemory<?> mem);
+
+}
diff --git a/src/com/jogamp/opencl/CLMemory.java b/src/com/jogamp/opencl/CLMemory.java
index d66db3c8..416b8019 100644
--- a/src/com/jogamp/opencl/CLMemory.java
+++ b/src/com/jogamp/opencl/CLMemory.java
@@ -3,6 +3,7 @@ package com.jogamp.opencl;
 import com.jogamp.opencl.gl.CLGLI;
 import com.jogamp.common.nio.Buffers;
 import com.jogamp.common.nio.PointerBuffer;
+import com.jogamp.opencl.impl.CLMemObjectDestructorCallback;
 import java.nio.Buffer;
 import java.nio.ByteBuffer;
 import java.nio.DoubleBuffer;
@@ -72,6 +73,18 @@ public abstract class CLMemory <B extends Buffer> extends CLObject implements CL
         return context.cl;
     }
 
+    /**
+     * Registers a callback which will be called by the OpenCL implementation
+     * when the memory object is released.
+     */
+    public void registerDestructorCallback(final CLMemObjectListener listener) {
+        cl.clSetMemObjectDestructorCallback(ID, new CLMemObjectDestructorCallback() {
+            public void memoryDeallocated(long memObjID) {
+                listener.memoryDeallocated(CLMemory.this);
+            }
+        });
+    }
+
     /**
      * Returns a new instance of CLMemory pointing to the same CLResource but using a different Buffer.
      */
diff --git a/src/com/jogamp/opencl/impl/CLImpl.java b/src/com/jogamp/opencl/impl/CLImpl.java
index b9dd9835..98db94ea 100644
--- a/src/com/jogamp/opencl/impl/CLImpl.java
+++ b/src/com/jogamp/opencl/impl/CLImpl.java
@@ -134,6 +134,18 @@ public class CLImpl extends CLAbstractImpl {
 
     private native int clSetEventCallback0(long event, int type, CLEventCallback cb, long address);
 
+
+    public int clSetMemObjectDestructorCallback(long memObjID, CLMemObjectDestructorCallback cb) {
+        final long address = addressTable._addressof_clSetMemObjectDestructorCallback;
+        if (address == 0) {
+            throw new UnsupportedOperationException("Method not available");
+        }
+        return clSetMemObjectDestructorCallback0(memObjID, cb, address);
+    }
+
+    private native int clSetMemObjectDestructorCallback0(long memObjID, CLMemObjectDestructorCallback cb, long address);
+
+
     /** Interface to C language function: <br> <code> void *  {@native clEnqueueMapImage}(cl_command_queue command_queue, cl_mem image, uint32_t blocking_map, uint64_t map_flags, const size_t * , const size_t * , size_t *  image_row_pitch, size_t *  image_slice_pitch, uint32_t num_events_in_wait_list, cl_event *  event_wait_list, cl_event *  event, int32_t *  errcode_ret); </code>
     @param origin a direct {@link com.jogamp.common.nio.PointerBuffer}
     @param range a direct {@link com.jogamp.common.nio.PointerBuffer}
diff --git a/src/com/jogamp/opencl/impl/CLMemObjectDestructorCallback.java b/src/com/jogamp/opencl/impl/CLMemObjectDestructorCallback.java
new file mode 100644
index 00000000..df6f18f6
--- /dev/null
+++ b/src/com/jogamp/opencl/impl/CLMemObjectDestructorCallback.java
@@ -0,0 +1,19 @@
+/*
+ * Created on Thursday, September 02 2010 23:09
+ */
+
+package com.jogamp.opencl.impl;
+
+/**
+ * A callback which is invoked by the OpenCL implementation when the memory
+ * object is deleted and its resources freed.
+ * @author Michael Bien
+ */
+public interface CLMemObjectDestructorCallback {
+
+    /**
+     * 
+     */
+    public void memoryDeallocated(long memObjID);
+
+}
-- 
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