VBOTracker renamed to BufferObjectTracker
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/*
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* Copyright (c) 2002-2004 LWJGL Project
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are
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* met:
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*
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* * Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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*
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* * Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* * Neither the name of 'LWJGL' nor the names of
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* its contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
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* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
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* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
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* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
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* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
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* LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
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* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
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* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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package org.lwjgl.opengl;
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import java.util.WeakHashMap;
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import java.util.Map;
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/** Track Vertex Buffer Objects by context. */
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final class VBOTracker {
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private static VBOTracker current_tracker;
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private static final Map contextToTracker = new WeakHashMap(3, 1.0f);
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private final StateStack vbo_array_stack;
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private final StateStack vbo_element_stack;
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private final StateStack pbo_pack_stack;
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private final StateStack pbo_unpack_stack;
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private final StateStack attrib_stack;
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private VBOTracker() {
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int stack_size = Math.max(1, Util.glGetInteger(GL11.GL_MAX_CLIENT_ATTRIB_STACK_DEPTH));
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vbo_array_stack = new StateStack(stack_size, 0);
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vbo_element_stack = new StateStack(stack_size, 0);
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pbo_pack_stack = new StateStack(stack_size, 0);
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pbo_unpack_stack = new StateStack(stack_size, 0);
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attrib_stack = new StateStack(stack_size, 0);
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}
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static StateStack getVBOArrayStack() {
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return current_tracker.vbo_array_stack;
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}
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static StateStack getVBOElementStack() {
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return current_tracker.vbo_element_stack;
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}
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static StateStack getPBOPackStack() {
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return current_tracker.pbo_pack_stack;
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}
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static StateStack getPBOUnpackStack() {
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return current_tracker.pbo_unpack_stack;
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}
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static StateStack getClientAttribStack() {
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return current_tracker.attrib_stack;
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}
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/**
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* Called after a GLContext has been made current. This will set up the current VBO tracker.
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*
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* @param context
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*/
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static void setCurrent(Object context) {
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if ( context == null ) {
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current_tracker = null;
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return;
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}
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current_tracker = (VBOTracker)contextToTracker.get(context);
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if ( current_tracker == null ) {
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current_tracker = new VBOTracker();
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contextToTracker.put(context, current_tracker);
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}
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}
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}
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