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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;
import java.util.ArrayList;
import javax.vecmath.Matrix3f;
import javax.vecmath.Matrix4f;
import javax.vecmath.Tuple2f;
import javax.vecmath.Tuple2i;
import javax.vecmath.Tuple3f;
import javax.vecmath.Tuple3i;
import javax.vecmath.Tuple4f;
import javax.vecmath.Tuple4i;
/**
* The ShaderAttributeObjectRetained class is an abstract class that
* encapsulates a uniform shader attribute whose value is specified
* explicitly.
*/
abstract class ShaderAttributeObjectRetained extends ShaderAttributeRetained {
private int classType;
private Class baseClass;
AttrWrapper attrWrapper;
/**
* Package scope constructor
*/
ShaderAttributeObjectRetained() {
}
void createObjectData(Object value) {
classType = computeClassType(value);
baseClass = getBaseClass(classType);
attrWrapper = createAttrWrapper(value, classType);
/*
System.err.println(" classType = " + classType +
", baseClass = " + baseClass +
", attrWrapper.get() = " + attrWrapper.get());
*/
}
void initValue(Object value) {
/*
System.err.println("ShaderAttributeObjectRetained : attrName = " + attrName +
", value = " + value +
", value.class = " + value.getClass());
*/
attrWrapper.set(value);
}
/**
* Retrieves the value of this shader attribute.
* A copy of the object is returned.
*/
Object getValue() {
return attrWrapper.get();
}
/**
* Sets the value of this shader attribute to the specified value.
* A copy of the object is stored.
*
* @param value the new value of the shader attribute
*
* @exception NullPointerException if value is null
*
* @exception ClassCastException if value is not an instance of
* the same base class as the object used to construct this shader
* attribute object.
*
*/
void setValue(Object value) {
initValue(value);
AttrWrapper valueWrapper = createAttrWrapper(value, this.classType);
sendMessage(ShaderConstants.ATTRIBUTE_VALUE_UPDATE, valueWrapper);
}
/**
* Retrieves the base class of the value of this shader attribute.
* This class will always be one of the allowable classes, even if
* a subclass was used to construct this shader attribute object.
* For example, if this shader attribute object was constructed
* with an instance of javax.vecmath.Point3f, the
* returned class would be javax.vecmath.Tuple3f.
*
* @return the base class of the value of this shader attribute
*/
Class getValueClass() {
return baseClass;
}
/**
* Initializes a mirror object.
*/
@Override
synchronized void initMirrorObject() {
super.initMirrorObject();
((ShaderAttributeObjectRetained)mirror).initValue(getValue());
}
/**
* Update the "component" field of the mirror object with the given "value"
*/
@Override
synchronized void updateMirrorObject(int component, Object value) {
//System.err.println("ShaderAttributeObjectRetained : updateMirrorObject");
ShaderAttributeObjectRetained mirrorSAV = (ShaderAttributeObjectRetained)mirror;
if ((component & ShaderConstants.ATTRIBUTE_VALUE_UPDATE) != 0) {
//System.err.println(" -- SHADER_ATTRIBUTE_VALUE_UPDATE");
mirrorSAV.attrWrapper = (AttrWrapper) value;
}
}
final void sendMessage(int attrMask, Object attr) {
ArrayList univList = new ArrayList();
ArrayList> gaList = Shape3DRetained.getGeomAtomsList(mirror.users, univList);
// Send to rendering attribute structure, regardless of
// whether there are users or not (alternate appearance case ..)
J3dMessage createMessage = new J3dMessage();
createMessage.threads = J3dThread.UPDATE_RENDERING_ATTRIBUTES;
createMessage.type = J3dMessage.SHADER_ATTRIBUTE_CHANGED;
createMessage.universe = null;
createMessage.args[0] = this;
createMessage.args[1]= new Integer(attrMask);
createMessage.args[2] = attr;
// System.err.println("changedFreqent1 = "+changedFrequent);
createMessage.args[3] = new Integer(changedFrequent);
VirtualUniverse.mc.processMessage(createMessage);
// System.err.println("univList.size is " + univList.size());
for(int i=0; i gL = gaList.get(i);
GeometryAtom[] gaArr = new GeometryAtom[gL.size()];
gL.toArray(gaArr);
createMessage.args[3] = gaArr;
VirtualUniverse.mc.processMessage(createMessage);
}
}
// Enumerated types representing allowed classes for shader
// attributes.
//
// NOTE that the values for these enums are used as an index into
// the tables of classes, so the values must start at 0 and
// increment by 1. Also, the order must be the same as the order
// of the entries in each of the two class tables.
static final int TYPE_INTEGER = 0;
static final int TYPE_FLOAT = 1;
static final int TYPE_TUPLE2I = 2;
static final int TYPE_TUPLE2F = 3;
static final int TYPE_TUPLE3I = 4;
static final int TYPE_TUPLE3F = 5;
static final int TYPE_TUPLE4I = 6;
static final int TYPE_TUPLE4F = 7;
static final int TYPE_MATRIX3F = 8;
static final int TYPE_MATRIX4F = 9;
// Double-precision is not supported in the current version. Uncomment the
// following if future support is done.
// static final int TYPE_DOUBLE = 10;
// static final int TYPE_TUPLE2D = 11;
// static final int TYPE_TUPLE3D = 12;
// static final int TYPE_TUPLE4D = 13;
// static final int TYPE_MATRIX3D = 14;
// static final int TYPE_MATRIX4D = 15;
static final Class classTable[] = {
Integer.class,
Float.class,
Tuple2i.class,
Tuple2f.class,
Tuple3i.class,
Tuple3f.class,
Tuple4i.class,
Tuple4f.class,
Matrix3f.class,
Matrix4f.class,
// Double-precision is not supported in the current version. Uncomment the
// following if future support is done.
// Double.class,
// Tuple2d.class,
// Tuple3d.class,
// Tuple4d.class,
// Matrix3d.class,
// Matrix4d.class,
};
static final Class classTableArr[] = {
Integer[].class,
Float[].class,
Tuple2i[].class,
Tuple2f[].class,
Tuple3i[].class,
Tuple3f[].class,
Tuple4i[].class,
Tuple4f[].class,
Matrix3f[].class,
Matrix4f[].class,
// Double-precision is not supported in the current version. Uncomment the
// following if future support is done.
// Double[].class,
// Tuple2d[].class,
// Tuple3d[].class,
// Tuple4d[].class,
// Matrix3d[].class,
// Matrix4d[].class,
};
/**
* Computes the base class from the specified object. A
* ClassCastException is thrown if the object is not an instance
* or array of one of the allowed classes.
*/
abstract int computeClassType(Object value);
/**
* Returns the base class represented by the specified class type.
*/
abstract Class getBaseClass(int classType);
/**
* Creates an attribute wrapper object of the specified class
* type, and stores the specified object.
*/
abstract AttrWrapper createAttrWrapper(Object value, int classType);
/**
* Base wrapper class for subclasses that are used to store a copy
* of the user-specified shader attribute value. There is a
* wrapper class for each supported base class in ShaderAttributeValue
* and ShaderAttributeArray. The value is stored in a Java primitive array.
*/
static abstract class AttrWrapper {
/**
* Stores a copy of the specified object in the wrapper object
*/
abstract void set(Object value);
/**
* Returns a copy of the wrapped object
*/
abstract Object get();
/**
* Returns a reference to the internal primitive array used to
* wrap the object; note that the caller of this method must
* treat the data as read-only. It is intended only as a means
* to pass data down to native methods.
*/
abstract Object getRef();
}
int getClassType() {
return classType;
}
void setClassType(int classType) {
this.classType = classType;
}
// Issue 320 : Override base class method so we can force changedFrequent
// to be set whenever the capability is writable, regardless of whether
// it is frequently writable. We must do this because the ShaderBin doesn't
// support updating shader attributes when changedFrequent is 0.
@Override
void setFrequencyChangeMask(int bit, int mask) {
if (source.getCapability(bit)) {
changedFrequent |= mask;
} else if (!source.isLive()) {
// Record the freq->infreq change only for non-live node components
changedFrequent &= ~mask;
}
}
@Override
void handleFrequencyChange(int bit) {
if (bit == ShaderAttributeObject.ALLOW_VALUE_WRITE) {
setFrequencyChangeMask(bit, 0x1);
}
}
}
