diff --git a/src/java/org/lwjgl/BufferUtils.java b/src/java/org/lwjgl/BufferUtils.java new file mode 100644 index 00000000..6a7e0ae9 --- /dev/null +++ b/src/java/org/lwjgl/BufferUtils.java @@ -0,0 +1,91 @@ +/* + * Copyright (c) 2002 Light Weight Java Game Library Project + * 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 'Light Weight Java Game Library' 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 THE COPYRIGHT OWNER OR + * CONTRIBUTORS 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. + */ + +package org.lwjgl; + +import java.nio.ByteBuffer; +import java.nio.ByteOrder; +import java.nio.FloatBuffer; +import java.nio.IntBuffer; +import java.nio.ShortBuffer; + +/** + * $Id$ + * + * Some often-used Buffer code for creating native buffers of the appropriate size. + + * @author $Author$ + * @version $Revision$ + */ + +public final class BufferUtils { + + /** + * Construct a direct native-ordered bytebuffer with the specified size. + * @param size The size, in bytes + * @return a ByteBuffer + */ + public static ByteBuffer createByteBuffer(int size) { + return ByteBuffer.allocateDirect(size).order(ByteOrder.nativeOrder()); + } + + /** + * Construct a direct native-order shortbuffer with the specified number + * of elements. + * @param size The size, in shorts + * @return a ShortBuffer + */ + public static ShortBuffer createShortBuffer(int size) { + return createByteBuffer(size << 1).asShortBuffer(); + } + + /** + * Construct a direct native-order shortbuffer with the specified number + * of elements. + * @param size The size, in shorts + * @return a ShortBuffer + */ + public static IntBuffer createIntBuffer(int size) { + return createByteBuffer(size << 2).asIntBuffer(); + } + + /** + * Construct a direct native-order shortbuffer with the specified number + * of elements. + * @param size The size, in shorts + * @return a ShortBuffer + */ + public static FloatBuffer createFloatBuffer(int size) { + return createByteBuffer(size << 2).asFloatBuffer(); + } + +}