--- /dev/null 2017-05-22 14:23:36.000000000 -0700 +++ new/test/javax/imageio/plugins/png/ShortPaletteTest.java 2017-05-22 14:23:36.000000000 -0700 @@ -0,0 +1,83 @@ +/* + * Copyright (c) 2003, 2017, Oracle and/or its affiliates. All rights reserved. + * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. + * + * This code is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License version 2 only, as + * published by the Free Software Foundation. + * + * This code 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 + * version 2 for more details (a copy is included in the LICENSE file that + * accompanied this code). + * + * You should have received a copy of the GNU General Public License version + * 2 along with this work; if not, write to the Free Software Foundation, + * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. + * + * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA + * or visit www.oracle.com if you need additional information or have any + * questions. + */ + +/* + * @test + * @bug 4826548 + * @summary Tests for reading PNG images with 5,6,7 and 8 colors in palette + */ + +import java.awt.image.BufferedImage; +import java.awt.image.IndexColorModel; +import java.io.ByteArrayInputStream; +import java.io.ByteArrayOutputStream; +import java.io.IOException; + +import javax.imageio.ImageIO; + +public class ShortPaletteTest { + + public static void main(String[] args) { + + for (int numberColors = 2; numberColors <= 16; numberColors++) { + try { + ByteArrayOutputStream baos = new ByteArrayOutputStream(); + BufferedImage image = createImage(numberColors); + ImageIO.write(image, "png", baos); + baos.close(); + System.out.println("Number of colors: " + numberColors); + byte[] buffer = baos.toByteArray(); + ByteArrayInputStream bais = new ByteArrayInputStream(buffer); + ImageIO.read(bais); + System.out.println("OK"); + } catch (ArrayIndexOutOfBoundsException e) { + e.printStackTrace(); + throw new RuntimeException("Test failed."); + } catch (IOException e) { + e.printStackTrace(); + throw new RuntimeException("Unexpected exception was thrown." + + " Test failed."); + } + } + } + + private static IndexColorModel createColorModel(int numberColors) { + + byte[] colors = new byte[numberColors*3]; + int depth = 4; + int startIndex = 0; + + return new IndexColorModel(depth, + numberColors, + colors, + startIndex, + false); + } + + private static BufferedImage createImage(int numberColors) { + return new BufferedImage(32, + 32, + BufferedImage.TYPE_BYTE_BINARY, + createColorModel(numberColors)); + } +}