/**
* Copyright 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:
*
* 1. Redistributions of source code must retain the above copyright notice, this list of
* conditions and the following disclaimer.
*
* 2. Redistributions 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.
*
* THIS SOFTWARE IS PROVIDED BY JogAmp Community ``AS IS'' AND ANY EXPRESS OR IMPLIED
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
* FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL JogAmp Community OR
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
* ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
* ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
* The views and conclusions contained in the software and documentation are those of the
* authors and should not be interpreted as representing official policies, either expressed
* or implied, of JogAmp Community.
*/
package jogamp.nativewindow.windows;
import jogamp.nativewindow.Debug;
import java.util.ArrayList;
import com.jogamp.nativewindow.NativeWindowException;
public class RegisteredClassFactory {
private static final boolean DEBUG = Debug.debug("RegisteredClass");
private static final ArrayList<RegisteredClassFactory> registeredFactories;
private static final long hInstance;
static {
hInstance = GDI.GetApplicationHandle();
if( 0 == hInstance ) {
throw new NativeWindowException("Error: Null ModuleHandle for Application");
}
registeredFactories = new ArrayList<RegisteredClassFactory>();
}
private final String classBaseName;
private final long wndProc;
private final boolean useDummyDispatchThread;
private final long iconSmallHandle, iconBigHandle;
private RegisteredClass sharedClass = null;
private int classIter = 0;
private int sharedRefCount = 0;
private final Object sync = new Object();
private String toHexString(final long l) { return "0x"+Long.toHexString(l); }
@Override
public final String toString() { return "RegisteredClassFactory[moduleHandle "+toHexString(hInstance)+", "+classBaseName+
", wndProc "+toHexString(wndProc)+", useDDT "+useDummyDispatchThread+", shared[refCount "+sharedRefCount+", class "+sharedClass+"]]"; }
/**
* Release the {@link RegisteredClass} of all {@link RegisteredClassFactory}.
*/
public static void shutdownSharedClasses() {
synchronized(registeredFactories) {
if( DEBUG ) {
System.err.println("RegisteredClassFactory.shutdownSharedClasses: "+registeredFactories.size());
}
for(int j=0; j<registeredFactories.size(); j++) {
final RegisteredClassFactory rcf = registeredFactories.get(j);
synchronized(rcf.sync) {
if(null != rcf.sharedClass) {
GDIUtil.DestroyWindowClass0(rcf.sharedClass.getHInstance(), rcf.sharedClass.getName(), rcf.sharedClass.getHDispThreadContext());
rcf.sharedClass = null;
rcf.sharedRefCount = 0;
rcf.classIter = 0;
if(DEBUG) {
System.err.println("RegisteredClassFactory #"+j+"/"+registeredFactories.size()+": shutdownSharedClasses : "+rcf.sharedClass);
}
} else if(DEBUG) {
System.err.println("RegisteredClassFactory #"+j+"/"+registeredFactories.size()+": null");
}
}
}
}
}
/** Application handle. */
public static long getHInstance() { return hInstance; }
public RegisteredClassFactory(final String classBaseName, final long wndProc, final boolean useDummyDispatchThread, final long iconSmallHandle, final long iconBigHandle) {
this.classBaseName = classBaseName;
this.wndProc = wndProc;
this.useDummyDispatchThread = useDummyDispatchThread;
this.iconSmallHandle = iconSmallHandle;
this.iconBigHandle = iconBigHandle;
synchronized(registeredFactories) {
registeredFactories.add(this);
}
}
public RegisteredClass getSharedClass() throws NativeWindowException {
synchronized(sync) {
if( 0 == sharedRefCount ) {
if( null != sharedClass ) {
throw new InternalError("Error ("+sharedRefCount+"): SharedClass not null: "+sharedClass);
}
String clazzName = null;
boolean registered = false;
final int classIterMark = classIter - 1;
while ( !registered && classIterMark != classIter ) {
// Retry with next clazz name, this could happen if more than one JVM is running
clazzName = classBaseName + classIter;
classIter++;
registered = GDIUtil.CreateWindowClass0(hInstance, clazzName, wndProc, iconSmallHandle, iconBigHandle);
}
if( !registered ) {
throw new NativeWindowException("Error: Could not create WindowClass: "+clazzName);
}
final long hDispatchThread;
if( useDummyDispatchThread ) {
hDispatchThread = GDIUtil.CreateDummyDispatchThread0();
if( 0 == hDispatchThread ) {
throw new NativeWindowException("Error: Could not create DDT "+clazzName);
}
} else {
hDispatchThread = 0;
}
sharedClass = new RegisteredClass(hInstance, clazzName, hDispatchThread);
if(DEBUG) {
System.err.println("RegisteredClassFactory getSharedClass ("+sharedRefCount+") initialized: "+sharedClass);
}
} else if ( null == sharedClass ) {
throw new InternalError("Error ("+sharedRefCount+"): SharedClass is null");
}
sharedRefCount++;
}
return sharedClass;
}
public void releaseSharedClass() {
synchronized(sync) {
if( 0 == sharedRefCount ) {
if( null != sharedClass ) {
throw new InternalError("Error ("+sharedRefCount+"): SharedClass not null: "+sharedClass);
}
return;
}
sharedRefCount--;
if( null == sharedClass ) {
throw new InternalError("Error ("+sharedRefCount+"): SharedClass is null");
}
if( 0 == sharedRefCount ) {
GDIUtil.DestroyWindowClass0(sharedClass.getHInstance(), sharedClass.getName(), sharedClass.getHDispThreadContext());
if(DEBUG) {
System.err.println("RegisteredClassFactory releaseSharedClass ("+sharedRefCount+") released: "+sharedClass);
}
sharedClass = null;
sharedRefCount = 0;
classIter = 0;
}
}
}
public int getSharedRefCount() {
return sharedRefCount;
}
}