1. /*

  2.  * @(#)JPEGImageMetadataFormat.java	1.12 03/12/19

  3.  *

  4.  * Copyright 2004 Sun Microsystems, Inc. All rights reserved.

  5.  * SUN PROPRIETARY/CONFIDENTIAL. Use is subject to license terms.

  6.  */

  7. 

  8. package com.sun.imageio.plugins.jpeg;

  9. 

  10. import javax.imageio.metadata.IIOMetadataFormat;

  11. import javax.imageio.metadata.IIOMetadataFormatImpl;

  12. import javax.imageio.ImageTypeSpecifier;

  13. 

  14. import java.awt.color.ICC_Profile;

  15. import java.awt.color.ColorSpace;

  16. import java.awt.image.ColorModel;

  17. 

  18. import java.util.List;

  19. import java.util.ArrayList;

  20. 

  21. public class JPEGImageMetadataFormat extends JPEGMetadataFormat {

  22. 

  23.     private static JPEGImageMetadataFormat theInstance = null;

  24. 

  25.     private JPEGImageMetadataFormat() {

  26.         super(JPEG.nativeImageMetadataFormatName,

  27.               CHILD_POLICY_ALL);

  28. 

  29.         addElement("JPEGvariety", 

  30.                    JPEG.nativeImageMetadataFormatName,

  31.                    CHILD_POLICY_CHOICE);

  32. 

  33.         addElement("markerSequence", 

  34.                    JPEG.nativeImageMetadataFormatName,

  35.                    CHILD_POLICY_SEQUENCE);

  36. 

  37.         addElement("app0JFIF", "JPEGvariety", CHILD_POLICY_SOME);

  38. 

  39.         addStreamElements("markerSequence");

  40. 

  41.         addElement("app14Adobe", "markerSequence", CHILD_POLICY_EMPTY);

  42. 

  43.         addElement("sof", "markerSequence", 1, 4);

  44. 

  45.         addElement("sos", "markerSequence", 1, 4);

  46. 

  47.         addElement("JFXX", "app0JFIF", 1, Integer.MAX_VALUE);

  48. 

  49.         addElement("app0JFXX", "JFXX", CHILD_POLICY_CHOICE);

  50. 

  51.         addElement("app2ICC", "app0JFIF", CHILD_POLICY_EMPTY);

  52. 

  53.         addAttribute("app0JFIF", 

  54.                      "majorVersion", 

  55.                      DATATYPE_INTEGER,

  56.                      false,

  57.                      "1",

  58.                      "0", "255",

  59.                      true, true);

  60.         addAttribute("app0JFIF", 

  61.                      "minorVersion", 

  62.                      DATATYPE_INTEGER,

  63.                      false,

  64.                      "2",

  65.                      "0", "255",

  66.                      true, true);

  67.         List resUnits = new ArrayList();

  68.         resUnits.add("0");

  69.         resUnits.add("1");

  70.         resUnits.add("2");

  71.         addAttribute("app0JFIF", 

  72.                      "resUnits",

  73.                      DATATYPE_INTEGER,

  74.                      false,

  75.                      "0",

  76.                      resUnits);

  77.         addAttribute("app0JFIF", 

  78.                      "Xdensity",

  79.                      DATATYPE_INTEGER,

  80.                      false,

  81.                      "1",

  82.                      "1", "65535",

  83.                      true, true);

  84.         addAttribute("app0JFIF", 

  85.                      "Ydensity",

  86.                      DATATYPE_INTEGER,

  87.                      false,

  88.                      "1",

  89.                      "1", "65535",

  90.                      true, true);

  91.         addAttribute("app0JFIF", 

  92.                      "thumbWidth",

  93.                      DATATYPE_INTEGER,

  94.                      false,

  95.                      "0",

  96.                      "0", "255",

  97.                      true, true);

  98.         addAttribute("app0JFIF", 

  99.                      "thumbHeight",

  100.                      DATATYPE_INTEGER,

  101.                      false,

  102.                      "0",

  103.                      "0", "255",

  104.                      true, true);

  105. 

  106.         addElement("JFIFthumbJPEG", "app0JFXX", CHILD_POLICY_SOME);

  107.         addElement("JFIFthumbPalette", "app0JFXX", CHILD_POLICY_EMPTY);

  108.         addElement("JFIFthumbRGB", "app0JFXX", CHILD_POLICY_EMPTY);

  109. 

  110.         List codes = new ArrayList();

  111.         codes.add("16"); // Hex 10

  112.         codes.add("17"); // Hex 11

  113.         codes.add("19"); // Hex 13

  114.         addAttribute("app0JFXX", 

  115.                      "extensionCode", 

  116.                      DATATYPE_INTEGER,

  117.                      false,

  118.                      null,

  119.                      codes);

  120. 

  121.         addChildElement("markerSequence", "JFIFthumbJPEG");

  122. 

  123.         addAttribute("JFIFthumbPalette", 

  124.                      "thumbWidth",

  125.                      DATATYPE_INTEGER,

  126.                      false,

  127.                      null,

  128.                      "0", "255",

  129.                      true, true);

  130.         addAttribute("JFIFthumbPalette", 

  131.                      "thumbHeight",

  132.                      DATATYPE_INTEGER,

  133.                      false,

  134.                      null,

  135.                      "0", "255",

  136.                      true, true);

  137. 

  138.         addAttribute("JFIFthumbRGB", 

  139.                      "thumbWidth",

  140.                      DATATYPE_INTEGER,

  141.                      false,

  142.                      null,

  143.                      "0", "255",

  144.                      true, true);

  145.         addAttribute("JFIFthumbRGB", 

  146.                      "thumbHeight",

  147.                      DATATYPE_INTEGER,

  148.                      false,

  149.                      null,

  150.                      "0", "255",

  151.                      true, true);

  152. 

  153.         addObjectValue("app2ICC", ICC_Profile.class, false, null);

  154. 

  155.         addAttribute("app14Adobe", 

  156.                      "version", 

  157.                      DATATYPE_INTEGER,

  158.                      false,

  159.                      "100",

  160.                      "100", "255",

  161.                      true, true);

  162.         addAttribute("app14Adobe", 

  163.                      "flags0",

  164.                      DATATYPE_INTEGER,

  165.                      false,

  166.                      "0",

  167.                      "0", "65535",

  168.                      true, true);

  169.         addAttribute("app14Adobe", 

  170.                      "flags1",

  171.                      DATATYPE_INTEGER,

  172.                      false,

  173.                      "0",

  174.                      "0", "65535",

  175.                      true, true);

  176. 

  177.         List transforms = new ArrayList();

  178.         transforms.add("0");

  179.         transforms.add("1");

  180.         transforms.add("2");

  181.         addAttribute("app14Adobe", 

  182.                      "transform",

  183.                      DATATYPE_INTEGER,

  184.                      true,

  185.                      null,

  186.                      transforms);

  187. 

  188.         addElement("componentSpec", "sof", CHILD_POLICY_EMPTY);

  189. 

  190.         List procs = new ArrayList();

  191.         procs.add("0");

  192.         procs.add("1");

  193.         procs.add("2");

  194.         addAttribute("sof", 

  195.                      "process", 

  196.                      DATATYPE_INTEGER,

  197.                      false,

  198.                      null,

  199.                      procs);

  200.         addAttribute("sof",

  201.                      "samplePrecision",

  202.                      DATATYPE_INTEGER,

  203.                      false,

  204.                      "8");

  205.         addAttribute("sof",

  206.                      "numLines",

  207.                      DATATYPE_INTEGER,

  208.                      false,

  209.                      null,

  210.                      "0", "65535",

  211.                      true, true);

  212.         addAttribute("sof",

  213.                      "samplesPerLine",

  214.                      DATATYPE_INTEGER,

  215.                      false,

  216.                      null,

  217.                      "0", "65535",

  218.                      true, true);

  219.         List comps = new ArrayList();

  220.         comps.add("1");

  221.         comps.add("2");

  222.         comps.add("3");

  223.         comps.add("4");

  224.         addAttribute("sof",

  225.                      "numFrameComponents",

  226.                      DATATYPE_INTEGER,

  227.                      false,

  228.                      null,

  229.                      comps);

  230. 

  231.         addAttribute("componentSpec",

  232.                      "componentId",

  233.                      DATATYPE_INTEGER,

  234.                      true,

  235.                      null,

  236.                      "0", "255",

  237.                      true, true);

  238.         addAttribute("componentSpec",

  239.                      "HsamplingFactor",

  240.                      DATATYPE_INTEGER,

  241.                      true,

  242.                      null,

  243.                      "1", "255",

  244.                      true, true);

  245.         addAttribute("componentSpec",

  246.                      "VsamplingFactor",

  247.                      DATATYPE_INTEGER,

  248.                      true,

  249.                      null,

  250.                      "1", "255",

  251.                      true, true);

  252.         List tabids = new ArrayList();

  253.         tabids.add("0");

  254.         tabids.add("1");

  255.         tabids.add("2");

  256.         tabids.add("3");

  257.         addAttribute("componentSpec",

  258.                      "QtableSelector",

  259.                      DATATYPE_INTEGER,

  260.                      true,

  261.                      null,

  262.                      tabids);

  263. 

  264.         addElement("scanComponentSpec", "sos", CHILD_POLICY_EMPTY);

  265. 

  266.         addAttribute("sos", 

  267.                      "numScanComponents",

  268.                      DATATYPE_INTEGER,

  269.                      true,

  270.                      null,

  271.                      comps);

  272.         addAttribute("sos",

  273.                      "startSpectralSelection",

  274.                       DATATYPE_INTEGER,

  275.                      false,

  276.                      "0",

  277.                      "0", "63",

  278.                      true, true);

  279.         addAttribute("sos",

  280.                      "endSpectralSelection",

  281.                       DATATYPE_INTEGER,

  282.                      false,

  283.                      "63",

  284.                      "0", "63",

  285.                      true, true);

  286.         addAttribute("sos",

  287.                      "approxHigh",

  288.                       DATATYPE_INTEGER,

  289.                      false,

  290.                      "0",

  291.                      "0", "15",

  292.                      true, true);

  293.         addAttribute("sos",

  294.                      "approxLow",

  295.                       DATATYPE_INTEGER,

  296.                      false,

  297.                      "0",

  298.                      "0", "15",

  299.                      true, true);

  300. 

  301.         addAttribute("scanComponentSpec",

  302.                      "componentSelector",

  303.                      DATATYPE_INTEGER,

  304.                      true,

  305.                      null,

  306.                      "0", "255",

  307.                      true, true);

  308.         addAttribute("scanComponentSpec",

  309.                      "dcHuffTable",

  310.                      DATATYPE_INTEGER,

  311.                      true,

  312.                      null,

  313.                      tabids);

  314.         addAttribute("scanComponentSpec",

  315.                      "acHuffTable",

  316.                      DATATYPE_INTEGER,

  317.                      true,

  318.                      null,

  319.                      tabids);

  320.     }

  321. 

  322.     public boolean canNodeAppear(String elementName,

  323.                                  ImageTypeSpecifier imageType) {

  324.         // All images can have these

  325.         if (elementName.equals(getRootName())

  326.             || elementName.equals("JPEGvariety")

  327.             || isInSubtree(elementName, "markerSequence")) {

  328.             return true;

  329.         }

  330. 

  331.         // If it is an element in the app0jfif subtree, just check

  332.         // that the image type is JFIF compliant.

  333.         if ((isInSubtree(elementName, "app0JFIF")) 

  334.             && JPEG.isJFIFcompliant(imageType, true)) {

  335.             return true;

  336.         }

  337.         

  338.         return false;

  339.     }

  340. 

  341. 

  342.     public static synchronized IIOMetadataFormat getInstance() {

  343.         if (theInstance == null) {

  344.             theInstance = new JPEGImageMetadataFormat();

  345.         }

  346.         return theInstance;

  347.     }

  348. }