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Java™ Binding for the OpenGL® API
/*
* Copyright (c) 2008 Sun Microsystems, Inc. All Rights Reserved.
* Copyright (c) 2010 JogAmp Community. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are
* met:
*
* - Redistribution of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* - Redistribution in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* Neither the name of Sun Microsystems, Inc. or the names of
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* This software is provided "AS IS," without a warranty of any kind. ALL
* EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND WARRANTIES,
* INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY, FITNESS FOR A
* PARTICULAR PURPOSE OR NON-INFRINGEMENT, ARE HEREBY EXCLUDED. SUN
* MICROSYSTEMS, INC. ("SUN") AND ITS LICENSORS SHALL NOT BE LIABLE FOR
* ANY DAMAGES SUFFERED BY LICENSEE AS A RESULT OF USING, MODIFYING OR
* DISTRIBUTING THIS SOFTWARE OR ITS DERIVATIVES. IN NO EVENT WILL SUN OR
* ITS LICENSORS BE LIABLE FOR ANY LOST REVENUE, PROFIT OR DATA, OR FOR
* DIRECT, INDIRECT, SPECIAL, CONSEQUENTIAL, INCIDENTAL OR PUNITIVE
* DAMAGES, HOWEVER CAUSED AND REGARDLESS OF THE THEORY OF LIABILITY,
* ARISING OUT OF THE USE OF OR INABILITY TO USE THIS SOFTWARE, EVEN IF
* SUN HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES.
*/
package jogamp.opengl.x11.glx;
import java.nio.IntBuffer;
import javax.media.nativewindow.CapabilitiesImmutable;
import javax.media.nativewindow.GraphicsConfigurationFactory;
import javax.media.nativewindow.VisualIDHolder;
import javax.media.opengl.DefaultGLCapabilitiesChooser;
import javax.media.opengl.GL;
import javax.media.opengl.GLCapabilities;
import javax.media.opengl.GLCapabilitiesChooser;
import javax.media.opengl.GLCapabilitiesImmutable;
import javax.media.opengl.GLDrawableFactory;
import javax.media.opengl.GLException;
import javax.media.opengl.GLProfile;
import jogamp.nativewindow.x11.X11Lib;
import jogamp.nativewindow.x11.XRenderDirectFormat;
import jogamp.nativewindow.x11.XRenderPictFormat;
import jogamp.nativewindow.x11.XVisualInfo;
import jogamp.opengl.GLGraphicsConfigurationUtil;
import com.jogamp.common.nio.Buffers;
import com.jogamp.common.nio.PointerBuffer;
import com.jogamp.nativewindow.x11.X11GraphicsConfiguration;
import com.jogamp.nativewindow.x11.X11GraphicsDevice;
import com.jogamp.nativewindow.x11.X11GraphicsScreen;
public class X11GLXGraphicsConfiguration extends X11GraphicsConfiguration implements Cloneable {
public static final int MAX_ATTRIBS = 128;
private GLCapabilitiesChooser chooser;
X11GLXGraphicsConfiguration(X11GraphicsScreen screen,
X11GLCapabilities capsChosen, GLCapabilitiesImmutable capsRequested, GLCapabilitiesChooser chooser) {
super(screen, capsChosen, capsRequested, capsChosen.getXVisualInfo());
this.chooser=chooser;
}
public Object clone() {
return super.clone();
}
public final long getFBConfig() {
return ((X11GLCapabilities)capabilitiesChosen).getFBConfig();
}
public final int getFBConfigID() {
return ((X11GLCapabilities)capabilitiesChosen).getFBConfigID();
}
public final boolean hasFBConfig() {
return ((X11GLCapabilities)capabilitiesChosen).hasFBConfig();
}
void updateGraphicsConfiguration() {
final CapabilitiesImmutable aChosenCaps = getChosenCapabilities();
if( !(aChosenCaps instanceof X11GLCapabilities) || VisualIDHolder.VID_UNDEFINED == aChosenCaps.getVisualID(VIDType.X11_XVISUAL) ) {
// This case is actually quite impossible, since on X11 the visualID and hence GraphicsConfiguration
// must be determined _before_ window creation!
final X11GLXGraphicsConfiguration newConfig = (X11GLXGraphicsConfiguration)
GraphicsConfigurationFactory.getFactory(getScreen().getDevice(), aChosenCaps).chooseGraphicsConfiguration(
aChosenCaps, getRequestedCapabilities(), chooser, getScreen(), VisualIDHolder.VID_UNDEFINED);
if(null!=newConfig) {
// FIXME: setScreen( ... );
setXVisualInfo(newConfig.getXVisualInfo());
setChosenCapabilities(newConfig.getChosenCapabilities());
if(DEBUG) {
System.err.println("X11GLXGraphicsConfiguration.updateGraphicsConfiguration updated:"+this);
}
} else {
throw new GLException("No native VisualID pre-chosen and update failed: "+this);
}
} else if (DEBUG) {
System.err.println("X11GLXGraphicsConfiguration.updateGraphicsConfiguration kept:"+this);
}
}
static X11GLXGraphicsConfiguration create(GLProfile glp, X11GraphicsScreen x11Screen, int fbcfgID) {
final X11GraphicsDevice device = (X11GraphicsDevice) x11Screen.getDevice();
final long display = device.getHandle();
if(0==display) {
throw new GLException("Display null of "+x11Screen);
}
final int screen = x11Screen.getIndex();
final long fbcfg = glXFBConfigID2FBConfig(display, screen, fbcfgID);
if(0==fbcfg) {
throw new GLException("FBConfig null of "+toHexString(fbcfgID));
}
if(null==glp) {
glp = GLProfile.getDefault(x11Screen.getDevice());
}
final X11GLXDrawableFactory factory = (X11GLXDrawableFactory) GLDrawableFactory.getDesktopFactory();
final X11GLCapabilities caps = GLXFBConfig2GLCapabilities(device, glp, fbcfg, GLGraphicsConfigurationUtil.ALL_BITS, factory.isGLXMultisampleAvailable(device));
if(null==caps) {
throw new GLException("GLCapabilities null of "+toHexString(fbcfg));
}
return new X11GLXGraphicsConfiguration(x11Screen, caps, caps, new DefaultGLCapabilitiesChooser());
}
static IntBuffer GLCapabilities2AttribList(GLCapabilitiesImmutable caps,
boolean forFBAttr, boolean isMultisampleAvailable,
long display, int screen)
{
int colorDepth = (caps.getRedBits() +
caps.getGreenBits() +
caps.getBlueBits());
if (colorDepth < 15) {
throw new GLException("Bit depths < 15 (i.e., non-true-color) not supported");
}
final IntBuffer res = Buffers.newDirectIntBuffer(MAX_ATTRIBS);
int idx = 0;
if (forFBAttr) {
res.put(idx++, GLX.GLX_DRAWABLE_TYPE);
final int surfaceType;
if( caps.isOnscreen() ) {
surfaceType = GLX.GLX_WINDOW_BIT;
} else if( caps.isFBO() ) {
surfaceType = GLX.GLX_WINDOW_BIT; // native replacement!
} else if( caps.isPBuffer() ) {
surfaceType = GLX.GLX_PBUFFER_BIT;
} else if( caps.isBitmap() ) {
surfaceType = GLX.GLX_PIXMAP_BIT;
} else {
throw new GLException("no surface type set in caps: "+caps);
}
res.put(idx++, surfaceType);
res.put(idx++, GLX.GLX_RENDER_TYPE);
res.put(idx++, GLX.GLX_RGBA_BIT);
} else {
res.put(idx++, GLX.GLX_RGBA);
}
// FIXME: Still a bug is Mesa: PBUFFER && GLX_STEREO==GL_FALSE ?
if (forFBAttr) {
res.put(idx++, GLX.GLX_DOUBLEBUFFER);
res.put(idx++, caps.getDoubleBuffered()?GL.GL_TRUE:GL.GL_FALSE);
res.put(idx++, GLX.GLX_STEREO);
res.put(idx++, caps.getStereo()?GL.GL_TRUE:GL.GL_FALSE);
res.put(idx++, GLX.GLX_TRANSPARENT_TYPE);
res.put(idx++, GLX.GLX_NONE);
/**
res.put(idx++, caps.isBackgroundOpaque()?GLX.GLX_NONE:GLX.GLX_TRANSPARENT_RGB;
if(!caps.isBackgroundOpaque()) {
res.put(idx++, GLX.GLX_TRANSPARENT_RED_VALUE);
res.put(idx++, caps.getTransparentRedValue()>=0?caps.getTransparentRedValue():(int)GLX.GLX_DONT_CARE);
res.put(idx++, GLX.GLX_TRANSPARENT_GREEN_VALUE);
res.put(idx++, caps.getTransparentGreenValue()>=0?caps.getTransparentGreenValue():(int)GLX.GLX_DONT_CARE);
res.put(idx++, GLX.GLX_TRANSPARENT_BLUE_VALUE);
res.put(idx++, caps.getTransparentBlueValue()>=0?caps.getTransparentBlueValue():(int)GLX.GLX_DONT_CARE);
res.put(idx++, GLX.GLX_TRANSPARENT_ALPHA_VALUE);
res.put(idx++, caps.getTransparentAlphaValue()>=0?caps.getTransparentAlphaValue():(int)GLX.GLX_DONT_CARE);
} */
} else {
if (caps.getDoubleBuffered()) {
res.put(idx++, GLX.GLX_DOUBLEBUFFER);
}
if (caps.getStereo()) {
res.put(idx++, GLX.GLX_STEREO);
}
}
res.put(idx++, GLX.GLX_RED_SIZE);
res.put(idx++, caps.getRedBits());
res.put(idx++, GLX.GLX_GREEN_SIZE);
res.put(idx++, caps.getGreenBits());
res.put(idx++, GLX.GLX_BLUE_SIZE);
res.put(idx++, caps.getBlueBits());
if(caps.getAlphaBits()>0) {
res.put(idx++, GLX.GLX_ALPHA_SIZE);
res.put(idx++, caps.getAlphaBits());
}
if (caps.getStencilBits() > 0) {
res.put(idx++, GLX.GLX_STENCIL_SIZE);
res.put(idx++, caps.getStencilBits());
}
res.put(idx++, GLX.GLX_DEPTH_SIZE);
res.put(idx++, caps.getDepthBits());
if (caps.getAccumRedBits() > 0 ||
caps.getAccumGreenBits() > 0 ||
caps.getAccumBlueBits() > 0 ||
caps.getAccumAlphaBits() > 0) {
res.put(idx++, GLX.GLX_ACCUM_RED_SIZE);
res.put(idx++, caps.getAccumRedBits());
res.put(idx++, GLX.GLX_ACCUM_GREEN_SIZE);
res.put(idx++, caps.getAccumGreenBits());
res.put(idx++, GLX.GLX_ACCUM_BLUE_SIZE);
res.put(idx++, caps.getAccumBlueBits());
res.put(idx++, GLX.GLX_ACCUM_ALPHA_SIZE);
res.put(idx++, caps.getAccumAlphaBits());
}
if (isMultisampleAvailable && caps.getSampleBuffers()) {
res.put(idx++, GLX.GLX_SAMPLE_BUFFERS);
res.put(idx++, GL.GL_TRUE);
res.put(idx++, GLX.GLX_SAMPLES);
res.put(idx++, caps.getNumSamples());
}
res.put(idx++, 0);
return res;
}
// FBConfig
static boolean GLXFBConfigIDValid(long display, int screen, int fbcfgid) {
long fbcfg = X11GLXGraphicsConfiguration.glXFBConfigID2FBConfig(display, screen, fbcfgid);
return (0 != fbcfg) ? X11GLXGraphicsConfiguration.GLXFBConfigValid( display, fbcfg ) : false ;
}
static boolean GLXFBConfigValid(long display, long fbcfg) {
final IntBuffer tmp = Buffers.newDirectIntBuffer(1);
if(GLX.GLX_BAD_ATTRIBUTE == GLX.glXGetFBConfigAttrib(display, fbcfg, GLX.GLX_RENDER_TYPE, tmp)) {
return false;
}
return true;
}
static int FBCfgDrawableTypeBits(final X11GraphicsDevice device, final long fbcfg) {
int val = 0;
final IntBuffer tmp = Buffers.newDirectIntBuffer(1);
int fbtype = glXGetFBConfig(device.getHandle(), fbcfg, GLX.GLX_DRAWABLE_TYPE, tmp);
if ( 0 != ( fbtype & GLX.GLX_WINDOW_BIT ) ) {
val |= GLGraphicsConfigurationUtil.WINDOW_BIT |
GLGraphicsConfigurationUtil.FBO_BIT;
}
if ( 0 != ( fbtype & GLX.GLX_PIXMAP_BIT ) ) {
val |= GLGraphicsConfigurationUtil.BITMAP_BIT;
}
if ( 0 != ( fbtype & GLX.GLX_PBUFFER_BIT ) ) {
val |= GLGraphicsConfigurationUtil.PBUFFER_BIT;
}
return val;
}
static XRenderDirectFormat XVisual2XRenderMask(long dpy, long visual) {
XRenderPictFormat renderPictFmt = X11Lib.XRenderFindVisualFormat(dpy, visual);
if(null == renderPictFmt) {
return null;
}
return renderPictFmt.getDirect();
}
static X11GLCapabilities GLXFBConfig2GLCapabilities(X11GraphicsDevice device, GLProfile glp, long fbcfg,
int winattrmask, boolean isMultisampleAvailable) {
final int allDrawableTypeBits = FBCfgDrawableTypeBits(device, fbcfg);
int drawableTypeBits = winattrmask & allDrawableTypeBits;
final long display = device.getHandle();
int fbcfgid = X11GLXGraphicsConfiguration.glXFBConfig2FBConfigID(display, fbcfg);
XVisualInfo visualInfo = GLX.glXGetVisualFromFBConfig(display, fbcfg);
if(null == visualInfo) {
if(DEBUG) {
System.err.println("X11GLXGraphicsConfiguration.GLXFBConfig2GLCapabilities: Null XVisualInfo for FBConfigID 0x" + Integer.toHexString(fbcfgid));
}
// onscreen must have an XVisualInfo
drawableTypeBits &= ~(GLGraphicsConfigurationUtil.WINDOW_BIT | GLGraphicsConfigurationUtil.FBO_BIT);
}
if( 0 == drawableTypeBits ) {
return null;
}
final IntBuffer tmp = Buffers.newDirectIntBuffer(1);
if(GLX.GLX_BAD_ATTRIBUTE == GLX.glXGetFBConfigAttrib(display, fbcfg, GLX.GLX_RENDER_TYPE, tmp)) {
return null;
}
if( 0 == ( GLX.GLX_RGBA_BIT & tmp.get(0) ) ) {
return null; // no RGBA -> color index not supported
}
final X11GLCapabilities res = new X11GLCapabilities(visualInfo, fbcfg, fbcfgid, glp);
if (isMultisampleAvailable) {
res.setSampleBuffers(glXGetFBConfig(display, fbcfg, GLX.GLX_SAMPLE_BUFFERS, tmp) != 0);
res.setNumSamples (glXGetFBConfig(display, fbcfg, GLX.GLX_SAMPLES, tmp));
}
final XRenderDirectFormat xrmask = ( null != visualInfo ) ?
XVisual2XRenderMask( display, visualInfo.getVisual() ) :
null ;
final int alphaMask = ( null != xrmask ) ? xrmask.getAlphaMask() : 0;
res.setBackgroundOpaque( 0 >= alphaMask );
if( !res.isBackgroundOpaque() ) {
res.setTransparentRedValue(xrmask.getRedMask());
res.setTransparentGreenValue(xrmask.getGreenMask());
res.setTransparentBlueValue(xrmask.getBlueMask());
res.setTransparentAlphaValue(alphaMask);
}
// ALPHA shall be set at last - due to it's auto setting by the above (!opaque / samples)
res.setDoubleBuffered(glXGetFBConfig(display, fbcfg, GLX.GLX_DOUBLEBUFFER, tmp) != 0);
res.setStereo (glXGetFBConfig(display, fbcfg, GLX.GLX_STEREO, tmp) != 0);
res.setHardwareAccelerated(glXGetFBConfig(display, fbcfg, GLX.GLX_CONFIG_CAVEAT, tmp) != GLX.GLX_SLOW_CONFIG);
res.setRedBits (glXGetFBConfig(display, fbcfg, GLX.GLX_RED_SIZE, tmp));
res.setGreenBits (glXGetFBConfig(display, fbcfg, GLX.GLX_GREEN_SIZE, tmp));
res.setBlueBits (glXGetFBConfig(display, fbcfg, GLX.GLX_BLUE_SIZE, tmp));
res.setAlphaBits (glXGetFBConfig(display, fbcfg, GLX.GLX_ALPHA_SIZE, tmp));
res.setAccumRedBits (glXGetFBConfig(display, fbcfg, GLX.GLX_ACCUM_RED_SIZE, tmp));
res.setAccumGreenBits(glXGetFBConfig(display, fbcfg, GLX.GLX_ACCUM_GREEN_SIZE, tmp));
res.setAccumBlueBits (glXGetFBConfig(display, fbcfg, GLX.GLX_ACCUM_BLUE_SIZE, tmp));
res.setAccumAlphaBits(glXGetFBConfig(display, fbcfg, GLX.GLX_ACCUM_ALPHA_SIZE, tmp));
res.setDepthBits (glXGetFBConfig(display, fbcfg, GLX.GLX_DEPTH_SIZE, tmp));
res.setStencilBits (glXGetFBConfig(display, fbcfg, GLX.GLX_STENCIL_SIZE, tmp));
return (X11GLCapabilities) GLGraphicsConfigurationUtil.fixWinAttribBitsAndHwAccel(device, drawableTypeBits, res);
}
private static String glXGetFBConfigErrorCode(int err) {
switch (err) {
case GLX.GLX_NO_EXTENSION: return "GLX_NO_EXTENSION";
case GLX.GLX_BAD_ATTRIBUTE: return "GLX_BAD_ATTRIBUTE";
default: return "Unknown error code " + err;
}
}
static int glXGetFBConfig(long display, long cfg, int attrib, IntBuffer tmp) {
if (display == 0) {
throw new GLException("No display connection");
}
int res = GLX.glXGetFBConfigAttrib(display, cfg, attrib, tmp);
if (res != 0) {
throw new GLException("glXGetFBConfig("+toHexString(attrib)+") failed: error code " + glXGetFBConfigErrorCode(res));
}
return tmp.get(tmp.position());
}
static int glXFBConfig2FBConfigID(long display, long cfg) {
final IntBuffer tmpID = Buffers.newDirectIntBuffer(1);
return glXGetFBConfig(display, cfg, GLX.GLX_FBCONFIG_ID, tmpID);
}
static long glXFBConfigID2FBConfig(long display, int screen, int id) {
final IntBuffer attribs = Buffers.newDirectIntBuffer(new int[] { GLX.GLX_FBCONFIG_ID, id, 0 });
final IntBuffer count = Buffers.newDirectIntBuffer(1);
count.put(0, -1);
PointerBuffer fbcfgsL = GLX.glXChooseFBConfig(display, screen, attribs, count);
if (fbcfgsL == null || fbcfgsL.limit()<1) {
return 0;
}
return fbcfgsL.get(0);
}
// Visual Info
static XVisualInfo XVisualID2XVisualInfo(long display, long visualID) {
int[] count = new int[1];
XVisualInfo template = XVisualInfo.create();
template.setVisualid(visualID);
XVisualInfo[] infos = X11Lib.XGetVisualInfo(display, X11Lib.VisualIDMask, template, count, 0);
if (infos == null || infos.length == 0) {
return null;
}
XVisualInfo res = XVisualInfo.create(infos[0]);
if (DEBUG) {
System.err.println("Fetched XVisualInfo for visual ID " + toHexString(visualID));
System.err.println("Resulting XVisualInfo: visualid = " + toHexString(res.getVisualid()));
}
return res;
}
static X11GLCapabilities XVisualInfo2GLCapabilities(final X11GraphicsDevice device, GLProfile glp, XVisualInfo info,
final int winattrmask, boolean isMultisampleEnabled) {
final int allDrawableTypeBits = GLGraphicsConfigurationUtil.WINDOW_BIT |
GLGraphicsConfigurationUtil.BITMAP_BIT |
GLGraphicsConfigurationUtil.FBO_BIT ;
final int drawableTypeBits = winattrmask & allDrawableTypeBits;
if( 0 == drawableTypeBits ) {
return null;
}
final long display = device.getHandle();
final IntBuffer tmp = Buffers.newDirectIntBuffer(1);
int val = glXGetConfig(display, info, GLX.GLX_USE_GL, tmp);
if (val == 0) {
if(DEBUG) {
System.err.println("Visual ("+toHexString(info.getVisualid())+") does not support OpenGL");
}
return null;
}
val = glXGetConfig(display, info, GLX.GLX_RGBA, tmp);
if (val == 0) {
if(DEBUG) {
System.err.println("Visual ("+toHexString(info.getVisualid())+") does not support RGBA");
}
return null;
}
GLCapabilities res = new X11GLCapabilities(info, glp);
res.setDoubleBuffered(glXGetConfig(display, info, GLX.GLX_DOUBLEBUFFER, tmp) != 0);
res.setStereo (glXGetConfig(display, info, GLX.GLX_STEREO, tmp) != 0);
// Note: use of hardware acceleration is determined by
// glXCreateContext, not by the XVisualInfo. Optimistically claim
// that all GLCapabilities have the capability to be hardware
// accelerated.
if (isMultisampleEnabled) {
res.setSampleBuffers(glXGetConfig(display, info, GLX.GLX_SAMPLE_BUFFERS, tmp) != 0);
res.setNumSamples (glXGetConfig(display, info, GLX.GLX_SAMPLES, tmp));
}
final XRenderDirectFormat xrmask = ( null != info ) ?
XVisual2XRenderMask( display, info.getVisual() ) :
null ;
final int alphaMask = ( null != xrmask ) ? xrmask.getAlphaMask() : 0;
res.setBackgroundOpaque( 0 >= alphaMask );
if( !res.isBackgroundOpaque() ) {
res.setTransparentRedValue(xrmask.getRedMask());
res.setTransparentGreenValue(xrmask.getGreenMask());
res.setTransparentBlueValue(xrmask.getBlueMask());
res.setTransparentAlphaValue(alphaMask);
}
// ALPHA shall be set at last - due to it's auto setting by the above (!opaque / samples)
res.setHardwareAccelerated(true);
res.setDepthBits (glXGetConfig(display, info, GLX.GLX_DEPTH_SIZE, tmp));
res.setStencilBits (glXGetConfig(display, info, GLX.GLX_STENCIL_SIZE, tmp));
res.setRedBits (glXGetConfig(display, info, GLX.GLX_RED_SIZE, tmp));
res.setGreenBits (glXGetConfig(display, info, GLX.GLX_GREEN_SIZE, tmp));
res.setBlueBits (glXGetConfig(display, info, GLX.GLX_BLUE_SIZE, tmp));
res.setAlphaBits (glXGetConfig(display, info, GLX.GLX_ALPHA_SIZE, tmp));
res.setAccumRedBits (glXGetConfig(display, info, GLX.GLX_ACCUM_RED_SIZE, tmp));
res.setAccumGreenBits(glXGetConfig(display, info, GLX.GLX_ACCUM_GREEN_SIZE, tmp));
res.setAccumBlueBits (glXGetConfig(display, info, GLX.GLX_ACCUM_BLUE_SIZE, tmp));
res.setAccumAlphaBits(glXGetConfig(display, info, GLX.GLX_ACCUM_ALPHA_SIZE, tmp));
return (X11GLCapabilities) GLGraphicsConfigurationUtil.fixWinAttribBitsAndHwAccel(device, drawableTypeBits, res);
}
private static String glXGetConfigErrorCode(int err) {
switch (err) {
case GLX.GLX_NO_EXTENSION: return "GLX_NO_EXTENSION";
case GLX.GLX_BAD_SCREEN: return "GLX_BAD_SCREEN";
case GLX.GLX_BAD_ATTRIBUTE: return "GLX_BAD_ATTRIBUTE";
case GLX.GLX_BAD_VISUAL: return "GLX_BAD_VISUAL";
default: return "Unknown error code " + err;
}
}
static int glXGetConfig(long display, XVisualInfo info, int attrib, IntBuffer tmp) {
if (display == 0) {
throw new GLException("No display connection");
}
int res = GLX.glXGetConfig(display, info, attrib, tmp);
if (res != 0) {
throw new GLException("glXGetConfig("+toHexString(attrib)+") failed: error code " + glXGetConfigErrorCode(res));
}
return tmp.get(tmp.position());
}
public String toString() {
return "X11GLXGraphicsConfiguration["+getScreen()+", visualID " + toHexString(getXVisualID()) + ", fbConfigID " + toHexString(getFBConfigID()) +
",\n\trequested " + getRequestedCapabilities()+
",\n\tchosen " + getChosenCapabilities()+
"]";
}
}