224 lines
8.1 KiB
Java
224 lines
8.1 KiB
Java
/*
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* Copyright (c) 2003, 2017, Oracle and/or its affiliates. All rights reserved.
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* This code is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 only, as
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* published by the Free Software Foundation.
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*
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* This code is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* version 2 for more details (a copy is included in the LICENSE file that
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* accompanied this code).
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*
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* You should have received a copy of the GNU General Public License version
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* 2 along with this work; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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* or visit www.oracle.com if you need additional information or have any
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* questions.
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*/
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/*
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* @test
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* @bug 4893446
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* @summary Tests that we get IOException if we try to encode the incompatible
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* image with RLE compression
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*/
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import java.awt.Color;
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import java.awt.Graphics;
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import java.awt.image.BufferedImage;
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import java.awt.image.IndexColorModel;
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import java.io.ByteArrayInputStream;
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import java.io.ByteArrayOutputStream;
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import java.io.IOException;
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import javax.imageio.IIOImage;
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import javax.imageio.ImageIO;
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import javax.imageio.ImageWriteParam;
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import javax.imageio.ImageWriter;
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import javax.imageio.stream.ImageInputStream;
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import javax.imageio.stream.ImageOutputStream;
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public class RleEncodingTest {
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private static int testIdx = 1;
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public static void main(String args[]) throws Exception {
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try {
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int mode = ImageWriteParam.MODE_EXPLICIT;
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String type = "BI_RLE4";
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doTest(type, mode);
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type = "BI_RLE8";
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doTest(type, mode);
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mode = ImageWriteParam.MODE_DEFAULT;
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type = "BI_RLE4";
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doTest(type, mode);
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type = "BI_RLE8";
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doTest(type, mode);
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System.out.println("Test 4bpp image.");
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encodeRLE4Test();
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System.out.println("Test 8bpp image.");
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encodeRLE8Test();
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} catch (IOException e) {
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e.printStackTrace();
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throw new RuntimeException("Unexpected exception. Test failed");
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}
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}
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private static void doTest(String compressionType,
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int compressionMode) throws IOException
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{
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BufferedImage bimg = new BufferedImage(100, 100,
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BufferedImage.TYPE_INT_RGB);
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Graphics g = bimg.getGraphics();
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g.setColor(Color.green);
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g.fillRect(0, 0, 100, 100);
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doTest(bimg, compressionType, compressionMode);
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}
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private static void encodeRLE4Test() throws IOException {
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// create 4bpp image
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byte[] r = new byte[16];
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r[0] = (byte)0xff;
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byte[] g = new byte[16];
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g[1] = (byte)0xff;
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byte[] b = new byte[16];
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b[2] = (byte)0xff;
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IndexColorModel icm = new IndexColorModel(4, 16, r, g, b);
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BufferedImage bimg = new BufferedImage(100, 100,
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BufferedImage.TYPE_BYTE_BINARY,
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icm);
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Graphics gr = bimg.getGraphics();
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gr.setColor(Color.green);
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gr.fillRect(0, 0, 100, 100);
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doTest(bimg, "BI_RLE4", ImageWriteParam.MODE_EXPLICIT);
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}
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private static void encodeRLE8Test() throws IOException {
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// create 8bpp image
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byte[] r = new byte[256];
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r[0] = (byte)0xff;
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byte[] g = new byte[256];
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g[1] = (byte)0xff;
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byte[] b = new byte[256];
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b[2] = (byte)0xff;
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IndexColorModel icm = new IndexColorModel(8, 256, r, g, b);
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BufferedImage bimg = new BufferedImage(100, 100,
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BufferedImage.TYPE_BYTE_INDEXED,
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icm);
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Graphics gr = bimg.getGraphics();
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gr.setColor(Color.green);
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gr.fillRect(0, 0, 100, 100);
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doTest(bimg, "BI_RLE8", ImageWriteParam.MODE_EXPLICIT);
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}
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private static void doTest(BufferedImage src,
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String compressionType,
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int compressionMode) throws IOException
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{
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ImageWriter iw = (ImageWriter)ImageIO.getImageWritersBySuffix("bmp").next();
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if (iw == null) {
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throw new RuntimeException("No available writer. Test failed.");
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}
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IIOImage iioImg = new IIOImage(src, null, null);
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ImageWriteParam param = iw.getDefaultWriteParam();
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ByteArrayOutputStream baos = new ByteArrayOutputStream();
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ImageOutputStream ios = ImageIO.createImageOutputStream(baos);
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iw.setOutput(ios);
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System.out.println("Compression Type is " + compressionType);
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System.out.println("Compression Mode is " + compressionMode);
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param.setCompressionMode(ImageWriteParam.MODE_EXPLICIT);
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param.setCompressionType(compressionType);
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if (compressionMode != ImageWriteParam.MODE_EXPLICIT) {
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param.setCompressionMode(compressionMode);
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}
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try {
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iw.write(null, iioImg, param);
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} catch (IOException e) {
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int bpp = src.getColorModel().getPixelSize();
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if (compressionMode == ImageWriteParam.MODE_EXPLICIT) {
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if ((compressionType.equals("BI_RLE4") && bpp != 4)
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|| (compressionType.equals("BI_RLE8") && bpp != 8))
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{
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System.out.println("Can not encode "+ bpp+ "bpp image as"
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+ compressionType);
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return;
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} else {
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throw new RuntimeException("Unable to encode "
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+ bpp + "bpp image as "
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+ compressionType
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+ ". Test failed");
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}
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}
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}
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baos.close();
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ByteArrayInputStream bais = new ByteArrayInputStream(baos.toByteArray());
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ImageInputStream iis = ImageIO.createImageInputStream(bais);
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BufferedImage dst = ImageIO.read(iis);
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int w = src.getWidth();
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int h = src.getHeight();
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Object dstPixel = dst.getRaster().getDataElements(w/2, h/2, null);
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Object srcPixel = src.getRaster().getDataElements(w/2, h/2, null);
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if ( (src.getColorModel().getRed(srcPixel)
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!= dst.getColorModel().getRed(dstPixel))
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|| (src.getColorModel().getGreen(srcPixel)
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!= dst.getColorModel().getGreen(dstPixel))
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|| (src.getColorModel().getBlue(srcPixel)
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!= dst.getColorModel().getBlue(dstPixel))
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|| (src.getColorModel().getAlpha(srcPixel)
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!= dst.getColorModel().getAlpha(dstPixel)) ) {
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showPixel(src, w/2, h/2);
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showPixel(dst, w/2, h/2);
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throw new RuntimeException(
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"Colors are different: " +
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Integer.toHexString(src.getColorModel().getRGB(srcPixel))
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+ " and " +
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Integer.toHexString(dst.getColorModel().getRGB(dstPixel)));
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}
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}
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private static void showPixel(BufferedImage src, int x, int y) {
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System.out.println("Img is " + src);
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Object p = src.getRaster().getDataElements(x, y, null);
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System.out.println("RGB: " +
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Integer.toHexString(src.getColorModel().getRGB(p)));
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System.out.println("Red: " +
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Integer.toHexString(src.getColorModel().getRed(p)));
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System.out.println("Green: " +
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Integer.toHexString(src.getColorModel().getGreen(p)));
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System.out.println("Blue: " +
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Integer.toHexString(src.getColorModel().getBlue(p)));
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System.out.println("Alpha: " +
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Integer.toHexString(src.getColorModel().getAlpha(p)));
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}
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}
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