121 lines
4.6 KiB
Java
121 lines
4.6 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 java.awt.GraphicsConfiguration;
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import java.awt.GraphicsDevice;
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import java.awt.Canvas;
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import java.lang.reflect.Method;
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import java.security.AccessController;
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import java.security.PrivilegedExceptionAction;
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import org.lwjgl.LWJGLException;
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import org.lwjgl.LWJGLUtil;
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/**
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*
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* @author elias_naur <elias_naur@users.sourceforge.net>
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* @version $Revision$
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* $Id$
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*/
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final class LinuxCanvasImplementation implements AWTCanvasImplementation {
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static int getScreenFromDevice(final GraphicsDevice device) throws LWJGLException {
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try {
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Method getScreen_method = AccessController.doPrivileged(new PrivilegedExceptionAction<Method>() {
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public Method run() throws Exception {
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return device.getClass().getMethod("getScreen");
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}
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});
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Integer screen = (Integer)getScreen_method.invoke(device);
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return screen;
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} catch (Exception e) {
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throw new LWJGLException(e);
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}
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}
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private static int getVisualIDFromConfiguration(final GraphicsConfiguration configuration) throws LWJGLException {
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try {
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Method getVisual_method = AccessController.doPrivileged(new PrivilegedExceptionAction<Method>() {
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public Method run() throws Exception {
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return configuration.getClass().getMethod("getVisual");
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}
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});
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Integer visual = (Integer)getVisual_method.invoke(configuration);
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return visual;
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} catch (Exception e) {
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throw new LWJGLException(e);
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}
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}
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public PeerInfo createPeerInfo(Canvas component, PixelFormat pixel_format, ContextAttribs attribs) throws LWJGLException {
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return new LinuxAWTGLCanvasPeerInfo(component);
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}
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/**
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* Find a proper GraphicsConfiguration from the given GraphicsDevice and PixelFormat.
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*
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* @return The GraphicsConfiguration corresponding to a visual that matches the pixel format.
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*/
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public GraphicsConfiguration findConfiguration(GraphicsDevice device, PixelFormat pixel_format) throws LWJGLException {
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try {
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int screen = getScreenFromDevice(device);
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int visual_id_matching_format = findVisualIDFromFormat(screen, pixel_format);
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GraphicsConfiguration[] configurations = device.getConfigurations();
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for ( GraphicsConfiguration configuration : configurations ) {
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int visual_id = getVisualIDFromConfiguration(configuration);
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if ( visual_id == visual_id_matching_format )
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return configuration;
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}
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} catch (LWJGLException e) {
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LWJGLUtil.log("Got exception while trying to determine configuration: " + e);
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}
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return null; // In case we failed to locate the visual, or if we're not on a SUN JDK
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}
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private static int findVisualIDFromFormat(int screen, PixelFormat pixel_format) throws LWJGLException {
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try (LinuxDisplay.AWTLock _lock = LinuxDisplay.awtLock()) {
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try {
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GLContext.loadOpenGLLibrary();
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try {
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LinuxDisplay.incDisplay();
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return nFindVisualIDFromFormat(LinuxDisplay.getDisplay(), screen, pixel_format);
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} finally {
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LinuxDisplay.decDisplay();
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}
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} finally {
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GLContext.unloadOpenGLLibrary();
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}
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}
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}
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private static native int nFindVisualIDFromFormat(long display, int screen, PixelFormat pixel_format) throws LWJGLException;
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}
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