Tools/Java/Source/FrameworkTasks/org/tianocore/framework/tasks/CompressHeader.java

   1 /** @file
   2  CompressHeader class.
   3
   4  This class is to generate the compressed section header.
   5
   6  Copyright (c) 2006, Intel Corporation
   7  All rights reserved. This program and the accompanying materials
   8  are licensed and made available under the terms and conditions of the BSD License
   9  which accompanies this distribution.  The full text of the license may be found at
  10  http://opensource.org/licenses/bsd-license.php
  11
  12  THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
  13  WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
  14
  15  **/
  16
  17 package org.tianocore.framework.tasks;
  18
  19 import org.apache.tools.ant.BuildException;
  20 /**
  21
  22   Internal class: This class is to generate the compressed section header.
  23
  24 **/
  25 public class CompressHeader {
  26
  27     /**
  28       CommonSectionHeader
  29
  30       This class define the compressed header structor.
  31
  32     **/
  33     public class CommonSectionHeader {
  34         byte[] Size = new byte[3];
  35         byte   type;
  36     }
  37
  38     ///
  39     /// Section header.
  40     ///
  41     public CommonSectionHeader SectionHeader = new CommonSectionHeader();
  42
  43     ///
  44     /// Length of uncompress section in byte.
  45     ///
  46     public int                 UncompressLen;
  47     ///
  48     /// Compress type.
  49     ///
  50     public byte                CompressType;
  51
  52     ///
  53     /// The size of compress header in byte.
  54     ///
  55     public int GetSize (){
  56         return 9;
  57     }
  58
  59     ///
  60     /// Write class member to buffer.
  61     ///
  62     public void StructToBuffer (byte[] Buffer){
  63         if (Buffer.length != GetSize()) {
  64             throw new BuildException ("CompressHeader Buffer size is not correct!");
  65         }
  66         for (int i = 0; i < 3; i++){
  67             Buffer[i] = SectionHeader.Size[i];
  68         }
  69         Buffer[3] = SectionHeader.type;
  70         Buffer[4] = (byte)(UncompressLen  & 0xff);
  71         Buffer[5] = (byte)((UncompressLen & 0xff00)>>8);
  72         Buffer[6] = (byte)((UncompressLen & 0xff0000)>>16);
  73         Buffer[7] = (byte)((UncompressLen & 0xff000000)>>24);
  74         Buffer[8] = CompressType;
  75     }
  76
  77 }