/**
* Initializes the appropriate OpenGL offscreen surface based on the value of the type parameter.
* If the surface creation fails for any reason, an OutOfMemoryError will be thrown.
*/
protected void initSurface(final int width, final int height) {
OGLRenderQueue rq = OGLRenderQueue.getInstance();
rq.lock();
try {
switch (type) {
case TEXTURE:
case PBUFFER:
case FBOBJECT:
// need to make sure the context is current before
// creating the texture (or pbuffer, or fbobject)
OGLContext.setScratchSurface(graphicsConfig);
break;
default:
break;
}
rq.flushAndInvokeNow(
new Runnable() {
public void run() {
initSurfaceNow(width, height);
}
});
} finally {
rq.unlock();
}
}
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);
}
