1 /*
   2  * Copyright (c) 2016, Oracle and/or its affiliates. All rights reserved.
   3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   4  *
   5  * This code is free software; you can redistribute it and/or modify it
   6  * under the terms of the GNU General Public License version 2 only, as
   7  * published by the Free Software Foundation.
   8  *
   9  * This code is distributed in the hope that it will be useful, but WITHOUT
  10  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  11  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  12  * version 2 for more details (a copy is included in the LICENSE file that
  13  * accompanied this code).
  14  *
  15  * You should have received a copy of the GNU General Public License version
  16  * 2 along with this work; if not, write to the Free Software Foundation,
  17  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  18  *
  19  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  20  * or visit www.oracle.com if you need additional information or have any
  21  * questions.
  22  */
  23 
  24 /*
  25  * @test
  26  * @bug     7116979
  27  * @summary Test verifies whether BufferedImage with primary colors are
  28  *          stored properly when we draw into ByteIndexed BufferedImage.
  29  * @run     main ConvertToByteIndexedTest
  30  */
  31 
  32 import java.awt.Color;
  33 import java.awt.Graphics2D;
  34 import java.awt.image.BufferedImage;
  35 import java.util.HashMap;
  36 
  37 public class ConvertToByteIndexedTest {
  38     static final int[] SRC_TYPES = new int[] {
  39         BufferedImage.TYPE_INT_RGB,
  40         BufferedImage.TYPE_INT_ARGB,
  41         BufferedImage.TYPE_INT_ARGB_PRE,
  42         BufferedImage.TYPE_INT_BGR,
  43         BufferedImage.TYPE_3BYTE_BGR,
  44         BufferedImage.TYPE_4BYTE_ABGR,
  45         BufferedImage.TYPE_4BYTE_ABGR_PRE,
  46         BufferedImage.TYPE_USHORT_565_RGB,
  47         BufferedImage.TYPE_USHORT_555_RGB,
  48         BufferedImage.TYPE_BYTE_INDEXED};
  49 
  50     static final String[] TYPE_NAME = new String[] {
  51         "INT_RGB",
  52         "INT_ARGB",
  53         "INT_ARGB_PRE",
  54         "INT_BGR",
  55         "3BYTE_BGR",
  56         "4BYTE_ABGR",
  57         "4BYTE_ABGR_PRE",
  58         "USHORT_565_RGB",
  59         "USHORT_555_RGB",
  60         "BYTE_INDEXED"};
  61 
  62     static final Color[] COLORS = new Color[] {
  63         //Color.WHITE,
  64         Color.BLACK,
  65         Color.RED,
  66         Color.YELLOW,
  67         Color.GREEN,
  68         Color.MAGENTA,
  69         Color.CYAN,
  70         Color.BLUE};
  71 
  72     static final HashMap<Integer,String> TYPE_TABLE =
  73             new HashMap<Integer,String>();
  74 
  75     static {
  76         for (int i = 0; i < SRC_TYPES.length; i++) {
  77             TYPE_TABLE.put(new Integer(SRC_TYPES[i]), TYPE_NAME[i]);
  78         }
  79     }
  80 
  81     static int width = 50;
  82     static int height = 50;
  83 
  84     public static void ConvertToByteIndexed(Color color, int srcType) {
  85         // setup source image and graphics for conversion.
  86         BufferedImage srcImage = new BufferedImage(width, height, srcType);
  87         Graphics2D srcG2D = srcImage.createGraphics();
  88         srcG2D.setColor(color);
  89         srcG2D.fillRect(0, 0, width, height);
  90 
  91         // setup destination image and graphics for conversion.
  92         int dstType = BufferedImage.TYPE_BYTE_INDEXED;
  93         BufferedImage dstImage = new BufferedImage(width, height, dstType);
  94         Graphics2D dstG2D = (Graphics2D)dstImage.getGraphics();
  95         // draw source image into Byte Indexed destination
  96         dstG2D.drawImage(srcImage, 0, 0, null);
  97 
  98         // draw into ARGB image to verify individual pixel value.
  99         BufferedImage argbImage = new BufferedImage(width, height,
 100                 BufferedImage.TYPE_INT_ARGB);
 101         Graphics2D argbG2D = (Graphics2D)argbImage.getGraphics();
 102         argbG2D.drawImage(dstImage, 0, 0, null);
 103 
 104         for (int i = 0; i < width; i++) {
 105             for (int j = 0; j < height; j++) {
 106                 if (color.getRGB() != argbImage.getRGB(i, j)) {
 107                     throw new RuntimeException("Conversion from " +
 108                             TYPE_TABLE.get(srcType) + " to BYTE_INDEXED is not"
 109                             + " done properly for " + color);
 110                 }
 111             }
 112         }
 113     }
 114 
 115     public static void main(String args[]) {
 116         for (int srcType : SRC_TYPES) {
 117             for (Color color : COLORS) {
 118                 ConvertToByteIndexed(color, srcType);
 119             }
 120         }
 121     }
 122 }