PointAttribsStateUnitPeer.java

/**
 * Copyright (c) 2003-2009, Xith3D Project Group all rights reserved.
 * 
 * Portions based on the Java3D interface, Copyright by Sun Microsystems.
 * Many thanks to the developers of Java3D and Sun Microsystems for their
 * innovation and design.
 * 
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are met:
 * 
 * Redistributions of source code must retain the above copyright notice,
 * this list of conditions and the following disclaimer.
 * 
 * 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.
 * 
 * Neither the name of the 'Xith3D Project Group' nor the names of its
 * contributors may be used to endorse or promote products derived from this
 * software without specific prior written permission.
 * 
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "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 THE COPYRIGHT OWNER OR CONTRIBUTORS BE
 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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 */
package org.xith3d.render.jsr231;

import javax.media.opengl.GL;

import org.jagatoo.logging.ProfileTimer;
import org.xith3d.render.CanvasPeer;
import org.xith3d.render.OpenGLCapabilities;
import org.xith3d.render.OpenGLStatesCache;
import org.xith3d.render.RenderOptions;
import org.xith3d.render.RenderPeer;
import org.xith3d.render.RenderPeer.RenderMode;
import org.xith3d.render.preprocessing.RenderAtom;
import org.xith3d.render.states.StateUnit;
import org.xith3d.render.states.units.PointAttribsStateUnit;
import org.xith3d.render.states.units.StateUnitPeer;
import org.xith3d.scenegraph.PointAttributes;
import org.xith3d.scenegraph.View;
import org.xith3d.utility.logging.X3DLog;

/**
 * <p>
 * Handles the setting of point attributes, specifically the point size
 * and antialiasing.
 * <p>
 * 
 * @author Yuri Vl. Gushchin
 * @author Lilian Chamontin [jsr231 port]
 * @author Marvin Froehlich (aka Qudus)
 */
public class PointAttribsStateUnitPeer implements StateUnitPeer
{
    public PointAttribsStateUnitPeer()
    {
    }
    
    public void apply( RenderAtom< ? > atom, StateUnit stateUnit, Object glObj, CanvasPeer canvasPeer, RenderPeer renderPeer, OpenGLCapabilities glCaps, View view, OpenGLStatesCache statesCache, RenderOptions options, long nanoTime, long nanoStep, RenderMode renderMode, long frameId )
    {
        ProfileTimer.startProfile( X3DLog.LOG_CHANNEL, "PointAttribsStateUnitPeer::apply()" );
        
        final GL gl = (GL)glObj;
        
        PointAttributes pa = ( (PointAttribsStateUnit)stateUnit ).getPointAttibutes();
        
        gl.glPointSize( pa.getPointSize() );
        if ( pa.isPointAntialiasingEnabled() && ( !statesCache.enabled || !statesCache.pointSmoothEnabled ) )
            gl.glEnable( GL.GL_POINT_SMOOTH );
        else if ( !pa.isPointAntialiasingEnabled() && ( !statesCache.enabled || statesCache.pointSmoothEnabled ) )
            gl.glDisable( GL.GL_POINT_SMOOTH );
        
        statesCache.pointSmoothEnabled = pa.isPointAntialiasingEnabled();
        
        ProfileTimer.endProfile();
    }
}