fr.ign.cogit.geoxygene.appli.gl.program.BlendingModeGLProgramBuilder.java Source code

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Here is the source code for fr.ign.cogit.geoxygene.appli.gl.program.BlendingModeGLProgramBuilder.java

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/*******************************************************************************
 * This file is part of the GeOxygene project source files.
 * 
 * GeOxygene aims at providing an open framework which implements OGC/ISO
 * specifications for the development and deployment of geographic (GIS)
 * applications. It is a open source contribution of the COGIT laboratory at the
 * Institut Gographique National (the French National Mapping Agency).
 * 
 * See: http://oxygene-project.sourceforge.net
 * 
 * Copyright (C) 2005 Institut Gographique National
 * 
 * This library is free software; you can redistribute it and/or modify it under
 * the terms of the GNU Lesser General Public License as published by the Free
 * Software Foundation; either version 2.1 of the License, or any later version.
 * 
 * This library 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 Lesser General Public License for more
 * details.
 * 
 * You should have received a copy of the GNU Lesser General Public License
 * along with this library (see file LICENSE if present); if not, write to the
 * Free Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
 * 02111-1307 USA
 *******************************************************************************/

package fr.ign.cogit.geoxygene.appli.gl.program;

import java.io.IOException;
import java.net.URISyntaxException;

import org.lwjgl.opengl.GL20;

import fr.ign.cogit.geoxygene.appli.gl.Shader;
import fr.ign.cogit.geoxygene.style.BlendingMode;
import fr.ign.cogit.geoxygene.style.filter.LayerFilter;
import fr.ign.cogit.geoxygene.style.filter.LayerFilterContrast;
import fr.ign.cogit.geoxygene.util.gl.GLProgram;

public class BlendingModeGLProgramBuilder extends AbstractDelegateBuilder {

    BlendingMode mode = BlendingMode.Normal;
    LayerFilter filter = null;

    public BlendingModeGLProgramBuilder(BlendingMode bmode, LayerFilter filter) {
        this.mode = bmode;
        this.filter = filter;
    }

    @Override
    public void preBuildActions(GLProgram program) {

        try {
            Shader vmainshader = new Shader("screenspace.vert", GL20.GL_VERTEX_SHADER,
                    Shader.DEFAULT_SHADERS_LOCATION_DIR.toURI().resolve("./screenspace.vert.glsl").toURL());
            Shader vsubshader = new Shader("identity.vert", GL20.GL_VERTEX_SHADER,
                    Shader.DEFAULT_SHADERS_LOCATION_DIR.toURI().resolve("./identity.vert.glsl").toURL());

            String blending_mode_name = "blending-" + this.mode.toString().toLowerCase() + ".frag";
            Shader fmainshader = new Shader(blending_mode_name, GL20.GL_FRAGMENT_SHADER,
                    Shader.DEFAULT_SHADERS_LOCATION_DIR.toURI().resolve("./" + blending_mode_name + ".glsl")
                            .toURL());
            String filter_name = "filter";
            if (this.filter instanceof LayerFilterContrast)
                filter_name += "Contrast.frag";
            else
                filter_name += "Identity.frag";
            Shader fsubshader = new Shader(filter_name, GL20.GL_FRAGMENT_SHADER,
                    Shader.DEFAULT_SHADERS_LOCATION_DIR.toURI().resolve("./" + filter_name + ".glsl").toURL());
            program.addShader(vmainshader);
            program.addShader(vsubshader);
            program.addShader(fmainshader);
            program.addShader(fsubshader);
        } catch (IOException e) {
            e.printStackTrace();
        } catch (URISyntaxException e) {
            e.printStackTrace();
        }
    }

    @Override
    public void postBuildActions(GLProgram program) {
    }

}