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Diffstat (limited to 'src/java/com/jogamp/common/nio/AbstractBuffer.java')
-rw-r--r-- | src/java/com/jogamp/common/nio/AbstractBuffer.java | 114 |
1 files changed, 114 insertions, 0 deletions
diff --git a/src/java/com/jogamp/common/nio/AbstractBuffer.java b/src/java/com/jogamp/common/nio/AbstractBuffer.java new file mode 100644 index 0000000..d76574b --- /dev/null +++ b/src/java/com/jogamp/common/nio/AbstractBuffer.java @@ -0,0 +1,114 @@ +/* + * Copyright (c) 2010, Sven Gothel + * 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 Sven Gothel 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 Sven Gothel 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.*; + +import java.nio.ByteBuffer; +import java.nio.Buffer; +import java.util.HashMap; + +/** + * @author Michael Bien + * @author Sven Gothel + */ +public abstract class AbstractBuffer implements NativeBuffer { + + protected final ByteBuffer bb; + protected int capacity; + protected int position; + + static { + NativeLibrary.ensureNativeLibLoaded(); + } + + protected AbstractBuffer(ByteBuffer bb, int elementSize) { + this.bb = bb; + + capacity = bb.capacity() / elementSize; + position = 0; + } + + public final int limit() { + return capacity; + } + + public final int capacity() { + return capacity; + } + + public final int position() { + return position; + } + + public final NativeBuffer 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 final int remaining() { + return capacity - position; + } + + public final boolean hasRemaining() { + return position < capacity; + } + + public final NativeBuffer rewind() { + position = 0; + return this; + } + + public boolean hasArray() { + return false; + } + + public int arrayOffset() { + return 0; + } + + public final ByteBuffer getBuffer() { + return bb; + } + + public final boolean isDirect() { + return bb.isDirect(); + } + + public String toString() { + return "AbstractBuffer[capacity "+capacity+", position "+position+", elementSize "+(bb.capacity()/capacity)+", ByteBuffer.capacity "+bb.capacity()+"]"; + } + +} |