GLTextureBuffer.java

gehe zur Dokumentation dieser Datei

package de.lathanda.eos.robot.gui;
 
import java.awt.Color;
import java.util.HashMap;
import com.jogamp.opengl.GL;
import com.jogamp.opengl.GL2;
import com.jogamp.opengl.GLException;
import com.jogamp.opengl.GLProfile;
import com.jogamp.opengl.util.texture.Texture;
import com.jogamp.opengl.util.texture.awt.AWTTextureData;
 
import de.lathanda.eos.robot.geom3d.Material;
 
public class GLTextureBuffer {
    // ***************** factory *****************
    private static HashMap<Material, GLTextureBuffer> texturebuffer = new HashMap<>();  
 
    public static synchronized GLTextureBuffer get(Material m, GL gl) {
        GLTextureBuffer texture = texturebuffer.get(m);
        if (texture == null) {
            texture = new GLTextureBuffer(m);
            texturebuffer.put(m, texture);
        }
        return texture;    
    }
    public static synchronized void clear(GL gl) {
        for(GLTextureBuffer buffer : texturebuffer.values()) {
            buffer.destroy(gl);
        }
    }   
    
    //****************** class *******************  
    private final Material m;
    private HashMap<GL, Texture> tbuffer = new HashMap<>();
    public GLTextureBuffer(Material m) {
        this.m = m;
    }
    public void destroy(GL gl) {
        Texture t = tbuffer.get(gl); 
        //free resources on graphic card
        if (t != null) {
            t.destroy(gl);
            tbuffer.remove(gl);
        }       
    }
    public void openMaterial(Color base, GL2 gl) {
        gl.glColor4ub((byte) base.getRed(), (byte) base.getGreen(), (byte) base.getBlue(), (byte) base.getAlpha());
 
        if (m.ka != null) {
            gl.glMaterialfv(GL.GL_FRONT, GL2.GL_AMBIENT, m.ka, 0);
        } else {
            gl.glMaterialfv(GL.GL_FRONT, GL2.GL_AMBIENT, base.getComponents(null), 0);
        }
        if (m.kd != null) {
            gl.glMaterialfv(GL.GL_FRONT, GL2.GL_DIFFUSE, m.kd, 0);
        } else {
            gl.glMaterialfv(GL.GL_FRONT, GL2.GL_DIFFUSE, base.getComponents(null), 0);
        }
        if (m.ks != null) {
            gl.glMaterialfv(GL.GL_FRONT, GL2.GL_SPECULAR, m.ks, 0);
        } else {
            gl.glMaterialfv(GL.GL_FRONT, GL2.GL_SPECULAR, base.getComponents(null), 0);
        }
        if (m.image != null) {
            try {
                Texture t = getTexture(gl);
                t.enable(gl);
                t.bind(gl);
                gl.glEnable(GL.GL_TEXTURE);
                gl.glTexEnvi(GL2.GL_TEXTURE_ENV, GL2.GL_TEXTURE_ENV_MODE, GL2.GL_REPLACE);
            } catch (GLException gle) {
                System.err.println(gle.getMessage());
            }
        }
    }
 
    private Texture getTexture(GL2 gl) {
        Texture t = tbuffer.get(gl);
        if (t == null) {
            AWTTextureData atd = new AWTTextureData(GLProfile.get(GLProfile.GL2), GL.GL_RGBA, GL.GL_RGBA, false,
                    m.image);
            t = new Texture(gl, atd);
            t.setTexParameterf(gl, GL2.GL_TEXTURE_WRAP_S, GL2.GL_REPEAT);
            t.setTexParameterf(gl, GL2.GL_TEXTURE_WRAP_T, GL2.GL_REPEAT);
            tbuffer.put(gl, t);
        }
        return t;
    }
 
    public void closeMaterial(GL2 gl) {
        if (m.image != null) {
            Texture t = getTexture(gl);
            t.disable(gl);
            gl.glDisable(GL.GL_TEXTURE);
        }
    }
    
}