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Diffstat (limited to 'ardor3d-jogl/src/main/java')
| -rw-r--r-- | ardor3d-jogl/src/main/java/com/ardor3d/util/geom/jogl/DirectNioBuffersSet.java | 110 |
1 files changed, 110 insertions, 0 deletions
diff --git a/ardor3d-jogl/src/main/java/com/ardor3d/util/geom/jogl/DirectNioBuffersSet.java b/ardor3d-jogl/src/main/java/com/ardor3d/util/geom/jogl/DirectNioBuffersSet.java new file mode 100644 index 0000000..c4a7264 --- /dev/null +++ b/ardor3d-jogl/src/main/java/com/ardor3d/util/geom/jogl/DirectNioBuffersSet.java @@ -0,0 +1,110 @@ +/** + * Copyright (c) 2008-2010 Ardor Labs, Inc. + * + * This file is part of Ardor3D. + * + * Ardor3D is free software: you can redistribute it and/or modify it + * under the terms of its license which may be found in the accompanying + * LICENSE file or at <http://www.ardor3d.com/LICENSE>. + */ + +package com.ardor3d.util.geom.jogl; + +import java.nio.ByteBuffer; +import java.nio.ByteOrder; +import java.nio.FloatBuffer; +import java.nio.IntBuffer; + +import com.ardor3d.util.geom.BufferUtils; +import com.jogamp.common.nio.Buffers; + +/** + * <code>DirectNioBuffersSet</code> is a helper class for generating reusable long-lived direct nio buffers mainly for + * the renderer based on JOGL and its helpers. Those buffers replace many short-lived ones that had no chance to be + * garbage collected when the VM runs out of memory on its native heap but only when it runs out of memory on its Java + * heap. This class is not thread-safe. + */ +public final class DirectNioBuffersSet { + + private static final int slicedByteBufferMaxSize = 4096; + + private static final int transformBufferMaxSize = 16; + + private static final int fboColorAttachmentBufferMaxSize = 64; + + private static final int infoLogBufferMaxSize = 1024;// 1 KB + + private static final int textureIdsBufferMaxSize = 256;// 1KB + + private static final int vboIdsBufferMaxSize = 256;// 1KB + + /** buffer containing all others, sliced to occupy only a single memory page */ + private final ByteBuffer slicedByteBuffer; + + private final IntBuffer singleIntBuffer; + + private final FloatBuffer singleFloatBuffer; + + private final FloatBuffer transformBuffer; + + private final IntBuffer fboColorAttachmentBuffer; + + private final ByteBuffer infoLogBuffer; + + private final IntBuffer textureIdsBuffer; + + private final IntBuffer vboIdsBuffer; + + public DirectNioBuffersSet() { + slicedByteBuffer = BufferUtils.createByteBuffer(slicedByteBufferMaxSize); + slicedByteBuffer.position(0).limit(slicedByteBuffer.position() + Buffers.SIZEOF_INT); + singleIntBuffer = slicedByteBuffer.slice().order(ByteOrder.nativeOrder()).asIntBuffer(); + slicedByteBuffer.position(slicedByteBuffer.limit()).limit(slicedByteBuffer.position() + Buffers.SIZEOF_FLOAT); + singleFloatBuffer = slicedByteBuffer.slice().order(ByteOrder.nativeOrder()).asFloatBuffer(); + slicedByteBuffer.position(slicedByteBuffer.limit()).limit( + slicedByteBuffer.position() + (Buffers.SIZEOF_FLOAT * transformBufferMaxSize)); + transformBuffer = slicedByteBuffer.slice().order(ByteOrder.nativeOrder()).asFloatBuffer(); + slicedByteBuffer.position(slicedByteBuffer.limit()).limit( + slicedByteBuffer.position() + (Buffers.SIZEOF_INT * fboColorAttachmentBufferMaxSize)); + fboColorAttachmentBuffer = slicedByteBuffer.slice().order(ByteOrder.nativeOrder()).asIntBuffer(); + slicedByteBuffer.position(slicedByteBuffer.limit()).limit( + slicedByteBuffer.position() + (Buffers.SIZEOF_BYTE * infoLogBufferMaxSize)); + infoLogBuffer = slicedByteBuffer.slice().order(ByteOrder.nativeOrder()); + slicedByteBuffer.position(slicedByteBuffer.limit()).limit( + slicedByteBuffer.position() + (Buffers.SIZEOF_INT * textureIdsBufferMaxSize)); + textureIdsBuffer = slicedByteBuffer.slice().order(ByteOrder.nativeOrder()).asIntBuffer(); + slicedByteBuffer.position(slicedByteBuffer.limit()).limit( + slicedByteBuffer.position() + (Buffers.SIZEOF_INT * vboIdsBufferMaxSize)); + vboIdsBuffer = slicedByteBuffer.slice().order(ByteOrder.nativeOrder()).asIntBuffer(); + slicedByteBuffer.clear(); + } + + public IntBuffer getSingleIntBuffer() { + return singleIntBuffer; + } + + public FloatBuffer getSingleFloatBuffer() { + return singleFloatBuffer; + } + + public FloatBuffer getTransformBuffer() { + return transformBuffer; + } + + public IntBuffer getFboColorAttachmentBuffer() { + return fboColorAttachmentBuffer; + } + + public ByteBuffer getInfoLogBuffer() { + return infoLogBuffer; + } + + public IntBuffer getTextureIdsBuffer() { + return textureIdsBuffer; + } + + public IntBuffer getVboIdsBuffer() { + return vboIdsBuffer; + } + +}
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