Source for gnu.javax.imageio.jpeg.JPEGFrame

   1: /* JPEGFrame.java --
   2:    Copyright (C)  2005  Free Software Foundation, Inc.
   3: 
   4: This file is part of GNU Classpath.
   5: 
   6: GNU Classpath is free software; you can redistribute it and/or modify
   7: it under the terms of the GNU General Public License as published by
   8: the Free Software Foundation; either version 2, or (at your option)
   9: any later version.
  10: 
  11: GNU Classpath is distributed in the hope that it will be useful, but
  12: WITHOUT ANY WARRANTY; without even the implied warranty of
  13: MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14: General Public License for more details.
  15: 
  16: You should have received a copy of the GNU General Public License
  17: along with GNU Classpath; see the file COPYING.  If not, write to the
  18: Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
  19: 02110-1301 USA.
  20: 
  21: Linking this library statically or dynamically with other modules is
  22: making a combined work based on this library.  Thus, the terms and
  23: conditions of the GNU General Public License cover the whole
  24: combination.
  25: 
  26: As a special exception, the copyright holders of this library give you
  27: permission to link this library with independent modules to produce an
  28: executable, regardless of the license terms of these independent
  29: modules, and to copy and distribute the resulting executable under
  30: terms of your choice, provided that you also meet, for each linked
  31: independent module, the terms and conditions of the license of that
  32: module.  An independent module is a module which is not derived from
  33: or based on this library.  If you modify this library, you may extend
  34: this exception to your version of the library, but you are not
  35: obligated to do so.  If you do not wish to do so, delete this
  36: exception statement from your version. */
  37: 
  38: package gnu.javax.imageio.jpeg;
  39: 
  40: import javax.imageio.plugins.jpeg.JPEGHuffmanTable;
  41: 
  42: public class JPEGFrame
  43: {
  44:   public final static byte JPEG_COLOR_GRAY = 1;
  45:   public final static byte JPEG_COLOR_RGB = 2;
  46:   public final static byte JPEG_COLOR_YCbCr = 3;
  47:   public final static byte JPEG_COLOR_CMYK = 4;
  48: 
  49:   public byte precision = 8;
  50:   public byte colorMode = JPEGFrame.JPEG_COLOR_YCbCr;
  51:   public byte componentCount = 0;
  52: 
  53:   public short width=0, height=0;
  54: 
  55:   public JPEGScan components;
  56: 
  57:   public JPEGFrame()
  58:   {
  59:     components = new JPEGScan();
  60:   }
  61: 
  62:   public void addComponent(byte componentID, byte sampleFactors,
  63:                            byte quantizationTableID)
  64:   {
  65:     byte sampleHorizontalFactor = (byte)(sampleFactors >> 4);
  66:     byte sampleVerticalFactor = (byte)(sampleFactors & 0x0f);
  67:     components.addComponent(componentID, sampleHorizontalFactor,
  68:                             sampleVerticalFactor, quantizationTableID);
  69:   }
  70: 
  71:   public void setPrecision(byte data)
  72:   {
  73:     precision = data;
  74:   }
  75: 
  76:   public void setScanLines(short data)
  77:   {
  78:     height = data;
  79:   }
  80: 
  81:   public void setSamplesPerLine(short data)
  82:   {
  83:     width = data;
  84:   }
  85: 
  86:   public void setColorMode(byte data)
  87:   {
  88:     colorMode = data;
  89:   }
  90: 
  91:   public void setComponentCount(byte data)
  92:   {
  93:     componentCount = data;
  94:   }
  95: 
  96:   public byte getComponentCount()
  97:   {
  98:     return componentCount;
  99:   }
 100: 
 101:   public void setHuffmanTables(byte componentID, JPEGHuffmanTable ACTable,
 102:                                JPEGHuffmanTable DCTable)
 103:   {
 104:     JPEGComponent comp = components.getComponentByID(componentID);
 105:     comp.setACTable(ACTable);
 106:     comp.setDCTable(DCTable);
 107:   }
 108: }