96 lines
2.8 KiB
Java
96 lines
2.8 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 org.lwjgl.LWJGLException;
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import org.lwjgl.LWJGLUtil;
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/**
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* @author Spasi
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* @since 20 Áðñ 2010
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*/
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/**
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* A Drawable implementation that shares its context with another Drawable. This is useful
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* for background loading of resources. See org.lwjgl.test.opengl.multithread.BackgroundLoad
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* for an example.
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*
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* @author Spasi
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*/
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public final class SharedDrawable implements Drawable {
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private Context context;
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private boolean destroyed;
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public SharedDrawable(final Drawable drawable) throws LWJGLException {
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this.context = drawable.createSharedContext();
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}
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public Context getContext() {
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return context;
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}
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public Context createSharedContext() {
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throw new UnsupportedOperationException();
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}
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public void makeCurrent() throws LWJGLException {
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checkDestroyed();
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context.makeCurrent();
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}
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public void releaseContext() throws LWJGLException {
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checkDestroyed();
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if ( context.isCurrent() )
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Context.releaseCurrentContext();
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}
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public void destroy() {
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if ( destroyed )
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return;
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try {
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context.forceDestroy();
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destroyed = true;
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} catch (LWJGLException e) {
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LWJGLUtil.log("Exception occurred while destroying SharedDrawable: " + e);
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}
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}
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private void checkDestroyed() {
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if ( destroyed )
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throw new IllegalStateException("SharedDrawable is destroyed");
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}
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} |