/** Xinerama-aware version of XlibWrapper.RootWindow method. */
public static long getRootWindow(int screenNumber) {
XToolkit.awtLock();
try {
X11GraphicsEnvironment x11ge =
(X11GraphicsEnvironment) GraphicsEnvironment.getLocalGraphicsEnvironment();
if (x11ge.runningXinerama()) {
// all the Xinerama windows share the same root window
return XlibWrapper.RootWindow(XToolkit.getDisplay(), 0);
} else {
return XlibWrapper.RootWindow(XToolkit.getDisplay(), screenNumber);
}
} finally {
XToolkit.awtUnlock();
}
}
public static GLXGraphicsConfig getConfig(X11GraphicsDevice device, int visualnum) {
if (!X11GraphicsEnvironment.isGLXAvailable()) {
return null;
}
long cfginfo = 0;
final String ids[] = new String[1];
OGLRenderQueue rq = OGLRenderQueue.getInstance();
rq.lock();
try {
// getGLXConfigInfo() creates and destroys temporary
// surfaces/contexts, so we should first invalidate the current
// Java-level context and flush the queue...
OGLContext.invalidateCurrentContext();
GLXGetConfigInfo action = new GLXGetConfigInfo(device.getScreen(), visualnum);
rq.flushAndInvokeNow(action);
cfginfo = action.getConfigInfo();
if (cfginfo != 0L) {
OGLContext.setScratchSurface(cfginfo);
rq.flushAndInvokeNow(
new Runnable() {
public void run() {
ids[0] = OGLContext.getOGLIdString();
}
});
}
} finally {
rq.unlock();
}
if (cfginfo == 0) {
return null;
}
int oglCaps = getOGLCapabilities(cfginfo);
ContextCapabilities caps = new OGLContextCaps(oglCaps, ids[0]);
return new GLXGraphicsConfig(device, visualnum, cfginfo, caps);
}