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World Wind is a collection of components that interactively display 3D geographic information within Java applications or applets.
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/*
 * Copyright (C) 2013 United States Government as represented by the Administrator of the
 * National Aeronautics and Space Administration.
 * All Rights Reserved.
 */

package gov.nasa.worldwind.util;

import com.jogamp.opengl.util.texture.*;
import gov.nasa.worldwind.Configuration;
import junit.framework.TestCase;
import org.junit.Test;

import javax.media.opengl.GL;
import java.io.*;
import java.net.URL;

/**
 * Unit tests for {@link OGLUtil}.
 *
 * @author pabercrombie
 * @version $Id: OGLUtilTest.java 1171 2013-02-11 21:45:02Z dcollins $
 */
public class OGLUtilTest
{
    protected static final String PNG_FILE = "./src/images/earth-map-512x256.png";
    protected static final String DDS_FILE = "./src/images/BMNG_world.topo.bathy.200405.3.2048x1024.dds";
    protected static final String JPG_FILE = "./src/images/BMNG_world.topo.bathy.200405.3.2048x1024.jpg";

    @Test
    public void testPngFile() throws IOException
    {
        File f = new File(PNG_FILE);

        TextureData td = OGLUtil.newTextureData(Configuration.getMaxCompatibleGLProfile(), f, false);

        TestCase.assertEquals(td.getWidth(), 512);
        TestCase.assertEquals(td.getHeight(), 256);
    }

    @Test
    public void testPngStream() throws IOException
    {
        File f = new File(PNG_FILE);
        InputStream s = new FileInputStream(f);

        TextureData td = OGLUtil.newTextureData(Configuration.getMaxCompatibleGLProfile(), s, false);

        TestCase.assertEquals(td.getWidth(), 512);
        TestCase.assertEquals(td.getHeight(), 256);
    }

    @Test
    public void testPngUrl() throws IOException
    {
        URL url = new File(PNG_FILE).toURI().toURL();

        TextureData td = OGLUtil.newTextureData(Configuration.getMaxCompatibleGLProfile(), url, false);

        TestCase.assertEquals(td.getWidth(), 512);
        TestCase.assertEquals(td.getHeight(), 256);
    }

    @Test
    public void testDdsFile() throws IOException
    {
        File f = new File(DDS_FILE);

        TextureData td = OGLUtil.newTextureData(Configuration.getMaxCompatibleGLProfile(), f, false);

        TestCase.assertEquals(td.getWidth(), 2048);
        TestCase.assertEquals(td.getHeight(), 1024);
    }

    @Test
    public void testDdsStream() throws IOException
    {
        File f = new File(DDS_FILE);
        InputStream s = new FileInputStream(f);

        TextureData td = OGLUtil.newTextureData(Configuration.getMaxCompatibleGLProfile(), s, false);

        TestCase.assertEquals(td.getWidth(), 2048);
        TestCase.assertEquals(td.getHeight(), 1024);
    }

    @Test
    public void testDdsUrl() throws IOException
    {
        URL url = new File(DDS_FILE).toURI().toURL();

        TextureData td = OGLUtil.newTextureData(Configuration.getMaxCompatibleGLProfile(), url, false);

        TestCase.assertEquals(td.getWidth(), 2048);
        TestCase.assertEquals(td.getHeight(), 1024);
    }

    @Test
    public void testJpgFile() throws IOException
    {
        File f = new File(JPG_FILE);

        TextureData td = OGLUtil.newTextureData(Configuration.getMaxCompatibleGLProfile(), f, false);

        TestCase.assertEquals(td.getWidth(), 2048);
        TestCase.assertEquals(td.getHeight(), 1024);
    }

    @Test
    public void testJpgStream() throws IOException
    {
        File f = new File(JPG_FILE);
        InputStream s = new FileInputStream(f);

        TextureData td = OGLUtil.newTextureData(Configuration.getMaxCompatibleGLProfile(), s, false);

        TestCase.assertEquals(td.getWidth(), 2048);
        TestCase.assertEquals(td.getHeight(), 1024);
    }

    @Test
    public void testJpgUrl() throws IOException
    {
        URL url = new File(JPG_FILE).toURI().toURL();

        TextureData td = OGLUtil.newTextureData(Configuration.getMaxCompatibleGLProfile(), url, false);

        TestCase.assertEquals(td.getWidth(), 2048);
        TestCase.assertEquals(td.getHeight(), 1024);
    }

    /** Test that the newTextureData supports indexed color PNG images. See http://issues.worldwind.arc.nasa.gov/jira/browse/WWJ-369. */
    @Test
    public void testIndexedColorPng() throws IOException
    {
        URL url = new File("./testData/32x32-icon-nasa-indexed-color.png").toURI().toURL();

        TextureData td = OGLUtil.newTextureData(Configuration.getMaxCompatibleGLProfile(), url, false);
        TestCase.assertEquals(td.getPixelFormat(), GL.GL_RGBA);
    }

    /** Test that the newTextureData supports interlaced PNG images. See http://issues.worldwind.arc.nasa.gov/jira/browse/WWJ-365. */
    @Test
    public void testInterlacedPng() throws IOException
    {
        URL url = new File("./testData/32x32-icon-nasa-interlaced.png").toURI().toURL();

        TextureData td = OGLUtil.newTextureData(Configuration.getMaxCompatibleGLProfile(), url, false);

        TestCase.assertEquals(td.getWidth(), 32);
        TestCase.assertEquals(td.getHeight(), 32);
    }
}