104 lines
3.5 KiB
Java
104 lines
3.5 KiB
Java
/*
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* Copyright (c) 2002-2008 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 static org.lwjgl.opengl.GL15.*;
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import static org.lwjgl.opengl.GL21.*;
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import static org.lwjgl.opengl.GL40.*;
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final class StateTracker {
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private ReferencesStack references_stack;
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private final StateStack attrib_stack;
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private boolean insideBeginEnd;
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StateTracker() {
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attrib_stack = new StateStack(0);
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}
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/** This is called after getting function addresses. */
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void init() {
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references_stack = new ReferencesStack();
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}
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static void setBeginEnd(ContextCapabilities caps, boolean inside) {
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caps.tracker.insideBeginEnd = inside;
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}
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boolean isBeginEnd() {
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return insideBeginEnd;
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}
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static void popAttrib(ContextCapabilities caps) {
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caps.tracker.doPopAttrib();
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}
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private void doPopAttrib() {
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references_stack.popState(attrib_stack.popState());
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}
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static void pushAttrib(ContextCapabilities caps, int mask) {
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caps.tracker.doPushAttrib(mask);
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}
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private void doPushAttrib(int mask) {
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attrib_stack.pushState(mask);
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references_stack.pushState();
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}
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static ReferencesStack getReferencesStack(ContextCapabilities caps) {
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return caps.tracker.references_stack;
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}
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static void bindBuffer(ContextCapabilities caps, int target, int buffer) {
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ReferencesStack references_stack = getReferencesStack(caps);
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switch(target) {
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case GL_ELEMENT_ARRAY_BUFFER:
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references_stack.getReferences().elementArrayBuffer = buffer;
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break;
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case GL_ARRAY_BUFFER:
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references_stack.getReferences().arrayBuffer = buffer;
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break;
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case GL_PIXEL_PACK_BUFFER:
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references_stack.getReferences().pixelPackBuffer = buffer;
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break;
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case GL_PIXEL_UNPACK_BUFFER:
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references_stack.getReferences().pixelUnpackBuffer = buffer;
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break;
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case GL_DRAW_INDIRECT_BUFFER:
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references_stack.getReferences().indirectBuffer = buffer;
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break;
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}
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}
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}
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