introduced com.jogamp.common.{nio,os} packages and moved some classes.

1 files changed, 227 insertions, 0 deletions

diff --git a/src/java/com/jogamp/common/nio/PointerBuffer.java b/src/java/com/jogamp/common/nio/PointerBuffer.java
new file mode 100644
index 0000000..9b7232f
--- /dev/null
+++ b/src/java/com/jogamp/common/nio/PointerBuffer.java
@@ -0,0 +1,227 @@
+/*
+ * Copyright (c) 2010, Michael Bien
+ * 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 Michael Bien 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 Michael Bien 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.
+ */
+
+/*
+ * Created on Saturday, March 27 2010 11:55
+ */
+package com.jogamp.common.nio;
+
+import com.jogamp.common.os.NativeLibrary;
+import com.jogamp.common.os.Platform;
+import java.nio.ByteBuffer;
+import java.nio.Buffer;
+import java.util.HashMap;
+
+/**
+ * Hardware independent container for native pointer arrays.
+ *
+ * The native values (NIO direct ByteBuffer) might be 32bit or 64bit wide,
+ * depending of the CPU pointer width.
+ *
+ * @author Michael Bien
+ * @author Sven Gothel
+ */
+public abstract class PointerBuffer implements NativeBuffer/*<PointerBuffer>*/ {
+
+    protected final ByteBuffer bb;
+    protected int capacity;
+    protected int position;
+    protected long[] backup;
+
+    protected HashMap/*<aptr, buffer>*/ dataMap = new HashMap();
+
+    static {
+        NativeLibrary.ensureNativeLibLoaded();
+    }
+
+    protected PointerBuffer(ByteBuffer bb) {
+        this.bb = bb;
+    }
+
+    public static PointerBuffer allocate(int size) {
+        if (Platform.isJavaSE()) {
+            return new PointerBufferSE(ByteBuffer.wrap(new byte[elementSize() * size]));
+        } else {
+            return new PointerBufferME_CDC_FP(ByteBuffer.wrap(new byte[elementSize() * size]));
+        }
+    }
+
+    public static PointerBuffer allocateDirect(int size) {
+        if (Platform.isJavaSE()) {
+            return new PointerBufferSE(Buffers.newDirectByteBuffer(elementSize() * size));
+        } else {
+            return new PointerBufferME_CDC_FP(Buffers.newDirectByteBuffer(elementSize() * size));
+        }
+    }
+
+    public static PointerBuffer wrap(ByteBuffer src) {
+        PointerBuffer res;
+        if (Platform.isJavaSE()) {
+            res = new PointerBufferSE(src);
+        } else {
+            res = new PointerBufferME_CDC_FP(src);
+        }
+        res.updateBackup();
+        return res;
+
+    }
+
+    void updateBackup() {
+        for (int i = 0; i < capacity; i++) {
+            backup[i] = get(i);
+        }
+    }
+
+    int arrayOffset() {
+        return 0;
+    }
+
+    public static int elementSize() {
+        return Platform.is32Bit() ? Buffers.SIZEOF_INT : Buffers.SIZEOF_LONG;
+    }
+
+    public int limit() {
+        return capacity;
+    }
+
+    public int capacity() {
+        return capacity;
+    }
+
+    public int position() {
+        return position;
+    }
+
+    public PointerBuffer position(int newPos) {
+        if (0 > newPos || newPos >= capacity) {
+            throw new IndexOutOfBoundsException("Sorry to interrupt, but the position "+newPos+" was out of bounds. " +
+                                                "My capacity is "+capacity()+".");
+        }
+        position = newPos;
+        return this;
+    }
+
+    public int remaining() {
+        return capacity - position;
+    }
+
+    public boolean hasRemaining() {
+        return position < capacity;
+    }
+
+    public PointerBuffer rewind() {
+        position = 0;
+        return this;
+    }
+
+    boolean hasArray() {
+        return true;
+    }
+
+    public long[] array() {
+        return backup;
+    }
+
+    public ByteBuffer getBuffer() {
+        return bb;
+    }
+
+    public boolean isDirect() {
+        return bb.isDirect();
+    }
+
+    public long get() {
+        long r = get(position);
+        position++;
+        return r;
+    }
+
+    public abstract long get(int idx);
+
+    /** put the pointer value at position index */
+    public abstract PointerBuffer put(int index, long value);
+
+    /** put the pointer value at the end */
+    public abstract PointerBuffer put(long value);
+
+    /** Put the address of the given direct Buffer at the given position
+        of this pointer array.
+        Adding a reference of the given direct Buffer to this object. */
+    public PointerBuffer referenceBuffer(int index, Buffer bb) {
+        if(null==bb) {
+            throw new RuntimeException("Buffer is null");
+        }
+        if(!bb.isDirect()) {
+            throw new RuntimeException("Buffer is not direct");
+        }
+        long bbAddr = getDirectBufferAddressImpl(bb);
+        if(0==bbAddr) {
+            throw new RuntimeException("Couldn't determine native address of given Buffer: "+bb);
+        }
+
+        put(index, bbAddr);
+        dataMap.put(new Long(bbAddr), bb);
+        return this;
+    }
+
+    /** Put the address of the given direct Buffer at the end
+        of this pointer array.
+        Adding a reference of the given direct Buffer to this object. */
+    public PointerBuffer referenceBuffer(Buffer bb) {
+        referenceBuffer(position, bb);
+        position++;
+        return this;
+    }
+
+    public Buffer getReferencedBuffer(int index) {
+        long addr = get(index);
+        return (Buffer) dataMap.get(new Long(addr));
+    }
+
+    public Buffer getReferencedBuffer() {
+        Buffer bb = getReferencedBuffer(position);
+        position++;
+        return bb;
+    }
+
+    private native long getDirectBufferAddressImpl(Object directBuffer);
+
+    public PointerBuffer put(PointerBuffer src) {
+        if (remaining() < src.remaining()) {
+            throw new IndexOutOfBoundsException();
+        }
+        while (src.hasRemaining()) {
+                 put(src.get()); 
+        }
+        return this;
+    }
+
+    public String toString() {
+        return "PointerBuffer[capacity "+capacity+", position "+position+", elementSize "+elementSize()+", ByteBuffer.capacity "+bb.capacity()+"]";
+    }
+
+}