j3dcore: flatten the directory structure a bit

Signed-off-by: Harvey Harrison <[email protected]>

1 files changed, 183 insertions, 0 deletions

diff --git a/src/javax/media/j3d/ExponentialFogRetained.java b/src/javax/media/j3d/ExponentialFogRetained.java
new file mode 100644
index 0000000..e4c0945
--- /dev/null
+++ b/src/javax/media/j3d/ExponentialFogRetained.java
@@ -0,0 +1,183 @@
+/*
+ * Copyright 1997-2008 Sun Microsystems, Inc.  All Rights Reserved.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This code is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation.  Sun designates this
+ * particular file as subject to the "Classpath" exception as provided
+ * by Sun in the LICENSE file that accompanied this code.
+ *
+ * This code is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
+ * CA 95054 USA or visit www.sun.com if you need additional information or
+ * have any questions.
+ *
+ */
+
+package javax.media.j3d;
+
+import java.util.ArrayList;
+
+import javax.vecmath.Color3f;
+
+/**
+ * The ExponentialFog leaf node defines distance parameters for
+ * exponential fog.
+ */
+class ExponentialFogRetained extends FogRetained {
+    // Fog density
+    private float density = 1.0f;
+
+    // Issue 144: density in Eye Coordinates (EC)
+    private float densityInEc;
+
+    // dirty bits for ExponentialFog
+    static final int DENSITY_CHANGED	= FogRetained.LAST_DEFINED_BIT << 1;
+
+
+    ExponentialFogRetained() {
+        this.nodeType = NodeRetained.EXPONENTIALFOG;
+    }
+
+    /**
+     * initializes fog density
+     */
+    void initDensity(float density){
+	this.density = density;
+    }
+
+    /**
+     * Sets fog density and send a message
+     */
+    void setDensity(float density){
+	this.density = density;
+	J3dMessage createMessage = new J3dMessage();
+	createMessage.threads = targetThreads;
+	createMessage.type = J3dMessage.FOG_CHANGED;
+	createMessage.universe = universe;
+	createMessage.args[0] = this;
+	createMessage.args[1]= new Integer(DENSITY_CHANGED);
+	createMessage.args[2] = new Float(density);
+	VirtualUniverse.mc.processMessage(createMessage);
+    }
+
+    /**
+     * Gets fog density
+     */
+    float getDensity(){
+	return this.density;
+    }
+
+
+    @Override
+    void setLive(SetLiveState s) {
+	super.setLive(s);
+
+	// Initialize the mirror object, this needs to be done, when
+	// renderBin is not accessing any of the fields
+	J3dMessage createMessage = new J3dMessage();
+	createMessage.threads = J3dThread.UPDATE_RENDERING_ENVIRONMENT;
+	createMessage.universe = universe;
+	createMessage.type = J3dMessage.FOG_CHANGED;
+	createMessage.args[0] = this;
+	// a snapshot of all attributes that needs to be initialized
+	// in the mirror object
+	createMessage.args[1]= new Integer(INIT_MIRROR);
+	ArrayList addScopeList = new ArrayList();
+	for (int i = 0; i < scopes.size(); i++) {
+		GroupRetained group = scopes.get(i);
+	    tempKey.reset();
+	    group.addAllNodesForScopedFog(mirrorFog, addScopeList, tempKey);
+	}
+	Object[] scopeInfo = new Object[2];
+	scopeInfo[0] = ((scopes.size() > 0) ? Boolean.TRUE:Boolean.FALSE);
+	scopeInfo[1] = addScopeList;
+	createMessage.args[2] = scopeInfo;
+	Color3f clr = new Color3f(color);
+	createMessage.args[3] = clr;
+
+	Object[] obj = new Object[5];
+	obj[0] = boundingLeaf;
+	obj[1] = (regionOfInfluence != null?regionOfInfluence.clone():null);
+	obj[2] = (inBackgroundGroup? Boolean.TRUE:Boolean.FALSE);
+	obj[3] = geometryBackground;
+	obj[4] = new Float(density);
+
+	createMessage.args[4] = obj;
+	VirtualUniverse.mc.processMessage(createMessage);
+
+    }
+
+
+    /**
+     * This method and its native counterpart update the native context
+     * fog values.
+     */
+    @Override
+    void update(Context ctx, double scale) {
+        // Issue 144: recompute the density in EC, and send it to native code
+	validateDistancesInEc(scale);
+	Pipeline.getPipeline().updateExponentialFog(ctx, color.x, color.y, color.z, densityInEc);
+    }
+
+
+
+    // The update Object function.
+    // Note : if you add any more fields here , you need to update
+    // updateFog() in RenderingEnvironmentStructure
+    @Override
+    void updateMirrorObject(Object[] objs) {
+
+	int component = ((Integer)objs[1]).intValue();
+
+
+	if ((component & DENSITY_CHANGED) != 0)
+	    ((ExponentialFogRetained)mirrorFog).density = ((Float)objs[2]).floatValue();
+
+	if ((component & INIT_MIRROR) != 0) {
+	    ((ExponentialFogRetained)mirrorFog).density = ((Float)((Object[])objs[4])[4]).floatValue();
+
+	}
+        // Issue 144: store the local to vworld scale used to transform the density
+	((ExponentialFogRetained)mirrorFog).setLocalToVworldScale(getLastLocalToVworld().getDistanceScale());
+
+	super.updateMirrorObject(objs);
+    }
+
+
+    // Clone the retained side only, internal use only
+    @Override
+    protected Object clone() {
+	ExponentialFogRetained efr =
+             (ExponentialFogRetained)super.clone();
+
+         efr.initDensity(getDensity());
+
+         return efr;
+    }
+
+    // Issue 144: method to recompute the density in EC by multiplying the specified
+    // density by the inverse of the local to EC scale
+    /**
+     * Scale distances from local to eye coordinate.
+     */
+    @Override
+    protected void validateDistancesInEc(double vworldToCoexistenceScale) {
+        // vworldToCoexistenceScale can be used here since
+        // CoexistenceToEc has a unit scale
+        double localToEcScale = getLocalToVworldScale() * vworldToCoexistenceScale;
+
+        densityInEc = (float)(density / localToEcScale);
+    }
+
+}