156 lines
4.4 KiB
Java
156 lines
4.4 KiB
Java
/*
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* Copyright (c) 2002-2011 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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import org.lwjgl.PointerBuffer;
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import static org.lwjgl.opengl.GL11.*;
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/** @author Spasi */
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abstract class DrawableGL implements DrawableLWJGL {
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/** The PixelFormat used to create the drawable. */
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protected PixelFormat pixel_format;
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/** Handle to the native GL rendering context */
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protected PeerInfo peer_info;
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/** The OpenGL Context. */
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protected ContextGL context;
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protected DrawableGL() {
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}
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public void setPixelFormat(final PixelFormatLWJGL pf) throws LWJGLException {
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throw new UnsupportedOperationException();
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}
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public void setPixelFormat(final PixelFormatLWJGL pf, final ContextAttribs attribs) throws LWJGLException {
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this.pixel_format = (PixelFormat)pf;
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this.peer_info = Display.getImplementation().createPeerInfo(pixel_format, attribs);
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}
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public PixelFormatLWJGL getPixelFormat() {
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return pixel_format;
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}
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public ContextGL getContext() {
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synchronized ( GlobalLock.lock ) {
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return context;
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}
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}
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public ContextGL createSharedContext() throws LWJGLException {
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synchronized ( GlobalLock.lock ) {
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checkDestroyed();
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return new ContextGL(peer_info, context.getContextAttribs(), context);
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}
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}
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public void checkGLError() {
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Util.checkGLError();
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}
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public void setSwapInterval(final int swap_interval) throws LWJGLException {
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ContextGL.setSwapInterval(swap_interval);
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}
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public void swapBuffers() throws LWJGLException {
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ContextGL.swapBuffers();
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}
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public void initContext(final float r, final float g, final float b) {
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// set background clear color
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glClearColor(r, g, b, 0.0f);
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// Clear window to avoid the desktop "showing through"
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glClear(GL_COLOR_BUFFER_BIT);
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}
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public boolean isCurrent() throws LWJGLException {
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synchronized ( GlobalLock.lock ) {
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checkDestroyed();
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return context.isCurrent();
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}
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}
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public void makeCurrent() throws LWJGLException {
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synchronized ( GlobalLock.lock ) {
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checkDestroyed();
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context.makeCurrent();
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}
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}
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public void releaseContext() throws LWJGLException {
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synchronized ( GlobalLock.lock ) {
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checkDestroyed();
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if ( context.isCurrent() )
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context.releaseCurrent();
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}
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}
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public void destroy() {
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synchronized ( GlobalLock.lock ) {
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if ( context == null )
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return;
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try {
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releaseContext();
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context.forceDestroy();
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context = null;
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if ( peer_info != null ) {
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peer_info.destroy();
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peer_info = null;
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}
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} catch (LWJGLException e) {
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LWJGLUtil.log("Exception occurred while destroying Drawable: " + e);
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}
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}
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}
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public void setCLSharingProperties(final PointerBuffer properties) throws LWJGLException {
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synchronized ( GlobalLock.lock ) {
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checkDestroyed();
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context.setCLSharingProperties(properties);
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}
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}
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protected final void checkDestroyed() {
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if ( context == null )
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throw new IllegalStateException("The Drawable has no context available.");
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}
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}
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