NativeWindow ProxySurface Abstraction and lock/unlock Surface cleanup

- ProxySurface -> abstract javax.media.nativewindow.ProxySurface,
  implemented by
    jogamp.nativewindow.WrappedSurface, just wrapping surface handle
    jogamp.nativewindow.windows.GDISurface, using HWND and get/release HDC on lock/unlock

- Unifying NativeSurface's lockSurface/unlockSurface implementations
    - NEWT's WindowImpl
    - NativeWindow's ProxySurface, WrappedWindow, GDIWindow and JAWTWindow

- wingdi/GDI: Add 'WindowFromDC' and 'GetClientRect' to GDI

1 files changed, 155 insertions, 0 deletions

diff --git a/src/nativewindow/classes/javax/media/nativewindow/ProxySurface.java b/src/nativewindow/classes/javax/media/nativewindow/ProxySurface.java
new file mode 100644
index 000000000..386ba32f4
--- /dev/null
+++ b/src/nativewindow/classes/javax/media/nativewindow/ProxySurface.java
@@ -0,0 +1,155 @@
+/**
+ * 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 javax.media.nativewindow;
+
+import com.jogamp.common.util.locks.RecursiveLock;
+
+public abstract class ProxySurface implements NativeSurface {
+    protected RecursiveLock recurLock = new RecursiveLock();
+    protected AbstractGraphicsConfiguration config;
+    protected long displayHandle;
+    protected int height;
+    protected int scrnIndex;
+    protected int width;
+
+    public ProxySurface(AbstractGraphicsConfiguration cfg) {
+        invalidate();
+        config = cfg;
+        displayHandle=cfg.getScreen().getDevice().getHandle();
+    }
+
+    public final void invalidate() {
+        recurLock.lock();
+        try {
+            displayHandle = 0;
+            invalidateImpl();
+        } finally {
+            recurLock.unlock();
+        }
+    }
+    protected abstract void invalidateImpl();
+
+    public final long getDisplayHandle() {
+        return displayHandle;
+    }
+
+    public final AbstractGraphicsConfiguration getGraphicsConfiguration() {
+        return config;
+    }
+
+    public final int getScreenIndex() {
+        return config.getScreen().getIndex();
+    }
+
+    public abstract long getSurfaceHandle();
+
+    public final int getWidth() {
+        return width;
+    }
+
+    public final int getHeight() {
+        return height;
+    }
+
+    public void setSize(int width, int height) {
+        this.width = width;
+        this.height = height;
+    }
+
+    public boolean surfaceSwap() {
+        return false;
+    }
+
+    public void surfaceUpdated(Object updater, NativeSurface ns, long when) {
+    }
+
+    public int lockSurface() throws NativeWindowException {
+        recurLock.lock();
+        int res = recurLock.getRecursionCount() == 0 ? LOCK_SURFACE_NOT_READY : LOCK_SUCCESS;
+
+        if ( LOCK_SURFACE_NOT_READY == res ) {
+            try {
+                final AbstractGraphicsDevice adevice = config.getScreen().getDevice();
+                adevice.lock();
+                try {
+                    res = lockSurfaceImpl();
+                } finally {
+                    if (LOCK_SURFACE_NOT_READY >= res) {
+                        adevice.unlock();
+                    }
+                }
+            } finally {
+                if (LOCK_SURFACE_NOT_READY >= res) {
+                    recurLock.unlock();
+                }
+            }
+        }
+        return res;
+    }
+
+    public final void unlockSurface() {
+        recurLock.validateLocked();
+
+        if (recurLock.getRecursionCount() == 0) {
+            final AbstractGraphicsDevice adevice = config.getScreen().getDevice();
+            try {
+                unlockSurfaceImpl();
+            } finally {
+                adevice.unlock();
+            }
+        }
+        recurLock.unlock();
+    }
+
+    protected abstract int lockSurfaceImpl();
+
+    protected abstract void unlockSurfaceImpl() ;
+
+    public final void validateSurfaceLocked() {
+        recurLock.validateLocked();
+    }
+
+    public final boolean isSurfaceLocked() {
+        return recurLock.isLocked();
+    }
+
+    public final boolean isSurfaceLockedByOtherThread() {
+        return recurLock.isLockedByOtherThread();
+    }
+
+    public final Thread getSurfaceLockOwner() {
+        return recurLock.getOwner();
+    }
+
+    public final int getSurfaceRecursionCount() {
+        return recurLock.getRecursionCount();
+    }
+
+    public abstract String toString();
+}