diff options
Diffstat (limited to 'src/nativewindow/classes/com/jogamp')
| -rw-r--r-- | src/nativewindow/classes/com/jogamp/nativewindow/impl/windows/RegisteredClass.java | 44 | ||||
| -rw-r--r-- | src/nativewindow/classes/com/jogamp/nativewindow/impl/windows/RegisteredClassFactory.java | 133 |
2 files changed, 177 insertions, 0 deletions
diff --git a/src/nativewindow/classes/com/jogamp/nativewindow/impl/windows/RegisteredClass.java b/src/nativewindow/classes/com/jogamp/nativewindow/impl/windows/RegisteredClass.java new file mode 100644 index 000000000..a30a81948 --- /dev/null +++ b/src/nativewindow/classes/com/jogamp/nativewindow/impl/windows/RegisteredClass.java @@ -0,0 +1,44 @@ +/** + * 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 com.jogamp.nativewindow.impl.windows; + +public class RegisteredClass { + long hInstance; + String className; + + RegisteredClass(long hInst, String name) { + hInstance = hInst; + className = name; + } + + public final long getHandle() { return hInstance; } + public final String getName() { return className; } + + public final String toString() { return "RegisteredClass[handle 0x"+Long.toHexString(hInstance)+", "+className+"]"; } +} diff --git a/src/nativewindow/classes/com/jogamp/nativewindow/impl/windows/RegisteredClassFactory.java b/src/nativewindow/classes/com/jogamp/nativewindow/impl/windows/RegisteredClassFactory.java new file mode 100644 index 000000000..d04640747 --- /dev/null +++ b/src/nativewindow/classes/com/jogamp/nativewindow/impl/windows/RegisteredClassFactory.java @@ -0,0 +1,133 @@ +/** + * 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 com.jogamp.nativewindow.impl.windows; + +import com.jogamp.nativewindow.impl.Debug; +import java.util.ArrayList; +import javax.media.nativewindow.NativeWindowException; + +public class RegisteredClassFactory { + static final boolean DEBUG = Debug.debug("RegisteredClass"); + private static ArrayList sharedClasses = new ArrayList(); + private String classBaseName; + long wndProc; + + private RegisteredClass sharedClass = null; + private int classIter = 0; + private int sharedRefCount = 0; + private Object sync = new Object(); + + /** + * Intended for a JVM shutdown hook, hence little synchronization + */ + public static void shutdownSharedClasses() { + synchronized(sharedClasses) { + for(int i=0; i<sharedClasses.size(); i++) { + RegisteredClass sc = (RegisteredClass) sharedClasses.get(i); + GDI.DestroyWindowClass(sc.getHandle(), sc.getName()); + if(DEBUG) { + System.err.println("RegisteredClassFactory shutdownSharedClasses "+i+"/"+sharedClasses.size()+": "+sc); + } + } + sharedClasses.clear(); + } + } + + public RegisteredClassFactory(String classBaseName, long wndProc) { + this.classBaseName = classBaseName; + this.wndProc = wndProc; + } + + public RegisteredClass getSharedClass() throws NativeWindowException { + synchronized(sync) { + if( 0 == sharedRefCount ) { + if( null != sharedClass ) { + throw new InternalError("Error ("+sharedRefCount+"): SharedClass not null: "+sharedClass); + } + long hInstance = GDI.GetApplicationHandle(); + if( 0 == hInstance ) { + throw new NativeWindowException("Error: Null ModuleHandle for Application"); + } + String clazzName = null; + boolean registered = false; + while ( !registered && Integer.MAX_VALUE >= classIter ) { + // Retry with next clazz name, this could happen if more than one JVM is running + clazzName = classBaseName + classIter; + classIter++; + registered = GDI.CreateWindowClass(hInstance, clazzName, wndProc); + } + if( !registered ) { + throw new NativeWindowException("Error: Could not create WindowClass: "+clazzName); + } + sharedClass = new RegisteredClass(hInstance, clazzName); + synchronized(sharedClasses) { + sharedClasses.add(sharedClass); + } + 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 ) { + GDI.DestroyWindowClass(sharedClass.getHandle(), sharedClass.getName()); + synchronized(sharedClasses) { + sharedClasses.remove(sharedClass); + } + if(DEBUG) { + System.err.println("RegisteredClassFactory releaseSharedClass ("+sharedRefCount+") released: "+sharedClass); + } + sharedClass = null; + sharedRefCount = 0; + classIter = 0; + } + } + } + + public int getSharedRefCount() { + return sharedRefCount; + } +} |