Gets Harvey's changes

1 files changed, 116 insertions, 0 deletions

diff --git a/src/javax/media/j3d/ShaderAttributeValue.java b/src/javax/media/j3d/ShaderAttributeValue.java
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+++ b/src/javax/media/j3d/ShaderAttributeValue.java
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+/*
+ * Copyright 2005-2008 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;
+
+
+/**
+ * The ShaderAttributeValue object encapsulates a uniform shader
+ * attribute whose value is specified explicitly. The shader variable
+ * <code>attrName</code> is explicitly set to the specified
+ * <code>value</code> during rendering. <code>attrName</code> must be
+ * the name of a valid uniform attribute in the shader in which it is
+ * used. Otherwise, the attribute name will be ignored and a runtime
+ * error may be generated. The <code>value</code> must be an instance
+ * of one of the allowed classes. The allowed classes are:
+ * <code>Integer</code>, <code>Float</code>,
+ * <code>Tuple{2,3,4}{i,f}</code>, <code>Matrix{3,4}f</code>. A
+ * ClassCastException will be thrown if a specified <code>value</code>
+ * object is not one of the allowed types. Further, the type of the
+ * value is immutable once a ShaderAttributeValue is constructed.
+ * Subsequent setValue operations must be called with an object of the
+ * same type as the one that was used to construct the
+ * ShaderAttributeValue. Finally, the type of the <code>value</code>
+ * object must match the type of the corresponding
+ * <code>attrName</code> variable in the shader in which it is
+ * used. Otherwise, the shader will not be able to use the attribute
+ * and a runtime error may be generated.
+ *
+ * @see ShaderAttributeSet
+ * @see ShaderProgram
+ *
+ * @since Java 3D 1.4
+ */
+
+public class ShaderAttributeValue extends ShaderAttributeObject {
+    /**
+     * Constructs a new ShaderAttributeValue object with the specified
+     * <code>(attrName,&nbsp;value)</code> pair.
+     * A copy of the object is stored.
+     *
+     * @param attrName the name of the shader attribute
+     * @param value the value of the shader attribute
+     *
+     * @exception NullPointerException if attrName or value is null
+     *
+     * @exception ClassCastException if value is not an instance of
+     * one of the allowed classes
+     */
+    public ShaderAttributeValue(String attrName, Object value) {
+	super(attrName, value);
+    }
+
+    // Implement abstract getValue method
+    @Override
+    public Object getValue() {
+
+        if (isLiveOrCompiled())
+	    if (!this.getCapability(ALLOW_VALUE_READ))
+		throw new CapabilityNotSetException(J3dI18N.getString("ShaderAttributeObject0"));
+
+ 	return ((ShaderAttributeValueRetained)this.retained).getValue();
+    }
+
+    // Implement abstract setValue method
+    @Override
+    public void setValue(Object value) {
+
+        if (value == null) {
+	    throw new NullPointerException();
+	}
+
+        if (isLiveOrCompiled())
+	    if (!this.getCapability(ALLOW_VALUE_WRITE))
+		throw new CapabilityNotSetException(J3dI18N.getString("ShaderAttributeObject1"));
+
+	if (isLive())
+	    ((ShaderAttributeValueRetained)this.retained).setValue(value);
+	else
+	    ((ShaderAttributeValueRetained)this.retained).initValue(value);
+
+    }
+
+    /**
+     * Creates a retained mode ShaderAttributeValueRetained object that this
+     * ShaderAttributeValue component object will point to.
+     */
+    @Override
+    void createRetained() {
+	this.retained = new ShaderAttributeValueRetained();
+	this.retained.setSource(this);
+    }
+
+}