de.ikosa.mars.viewer.glviewer.engine.GLTextureArray.java Source code

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Here is the source code for de.ikosa.mars.viewer.glviewer.engine.GLTextureArray.java

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/*
 * Copyright (C) 2013 Clemens-Alexander Brust IT-Dienstleistungen
 *
 *     This program is free software: you can redistribute it and/or modify
 *     it under the terms of the GNU General Public License as published by
 *     the Free Software Foundation, either version 3 of the License, or
 *     (at your option) any later version.
 *
 *     This program 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 for more details.
 *
 *     You should have received a copy of the GNU General Public License
 *     along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */

package de.ikosa.mars.viewer.glviewer.engine;

import de.ikosa.mars.util.ML;
import org.lwjgl.opengl.GL11;
import org.lwjgl.opengl.GL12;
import org.lwjgl.opengl.GL13;
import org.lwjgl.opengl.GL30;

public class GLTextureArray extends GLTexture {
    public GLTextureArray(String name, int textureId) {
        super(name, textureId);
    }

    @Override
    public void use(int textureUnit) {
        if (textureUnit >= 0) {
            GL13.glActiveTexture(GL13.GL_TEXTURE0 + textureUnit);
            GL11.glBindTexture(GL30.GL_TEXTURE_2D_ARRAY, getTextureId());
        }
    }

    @Override
    public int getSizeX() {
        use(0);
        return GL11.glGetTexLevelParameteri(GL30.GL_TEXTURE_2D_ARRAY, 0, GL11.GL_TEXTURE_WIDTH);
    }

    @Override
    public int getSizeY() {
        use(0);
        return GL11.glGetTexLevelParameteri(GL30.GL_TEXTURE_2D_ARRAY, 0, GL11.GL_TEXTURE_HEIGHT);
    }

    public int getSizeZ() {
        use(0);
        return GL11.glGetTexLevelParameteri(GL12.GL_TEXTURE_3D, 0, GL12.GL_TEXTURE_DEPTH);
    }

    @Override
    public float[][] toHeightMap(int samplesX, int samplesY) {
        ML.f("Cannot convert 3D texture to height map!");
        return null;
    }
}