libremetaverse/CSJ2K/j2k/entropy/decoder/DecLyrdCBlk.cs

/*
* CVS identifier:
*
* $Id: DecLyrdCBlk.java,v 1.9 2001/09/14 09:25:01 grosbois Exp $
*
* Class:                   DecLyrdCBlk
*
* Description:             The coded (compressed) code-block
*                          with layered organization for the decoder.
*
*
*
* COPYRIGHT:
* 
* This software module was originally developed by Raphaël Grosbois and
* Diego Santa Cruz (Swiss Federal Institute of Technology-EPFL); Joel
* Askelöf (Ericsson Radio Systems AB); and Bertrand Berthelot, David
* Bouchard, Félix Henry, Gerard Mozelle and Patrice Onno (Canon Research
* Centre France S.A) in the course of development of the JPEG2000
* standard as specified by ISO/IEC 15444 (JPEG 2000 Standard). This
* software module is an implementation of a part of the JPEG 2000
* Standard. Swiss Federal Institute of Technology-EPFL, Ericsson Radio
* Systems AB and Canon Research Centre France S.A (collectively JJ2000
* Partners) agree not to assert against ISO/IEC and users of the JPEG
* 2000 Standard (Users) any of their rights under the copyright, not
* including other intellectual property rights, for this software module
* with respect to the usage by ISO/IEC and Users of this software module
* or modifications thereof for use in hardware or software products
* claiming conformance to the JPEG 2000 Standard. Those intending to use
* this software module in hardware or software products are advised that
* their use may infringe existing patents. The original developers of
* this software module, JJ2000 Partners and ISO/IEC assume no liability
* for use of this software module or modifications thereof. No license
* or right to this software module is granted for non JPEG 2000 Standard
* conforming products. JJ2000 Partners have full right to use this
* software module for his/her own purpose, assign or donate this
* software module to any third party and to inhibit third parties from
* using this software module for non JPEG 2000 Standard conforming
* products. This copyright notice must be included in all copies or
* derivative works of this software module.
* 
* Copyright (c) 1999/2000 JJ2000 Partners.
* */
using System;
using CSJ2K.j2k.entropy;
namespace CSJ2K.j2k.entropy.decoder
{
	
	/// <summary> This class stores coded (compressed) code-blocks that are organized in
	/// layers. This object can contain either all code-block data (i.e. all
	/// layers), or a subset of all the layers that make up the whole compressed
	/// code-block. It is applicable to the decoder engine only. Some data of the
	/// coded-block is stored in the super class, see CodedCBlk.
	/// 
	/// <p>A code-block may have its progressive attribute set (i.e. the 'prog'
	/// flag is true). If a code-block is progressive then it means that more data
	/// for it may be obtained for an improved quality. If the progressive flag is
	/// false then no more data is available from the source for this
	/// code-block.</p>
	/// 
	/// </summary>
	/// <seealso cref="CodedCBlk">
	/// 
	/// </seealso>
	public class DecLyrdCBlk:CodedCBlk
	{
		
		/// <summary>The horizontal coordinate of the upper-left corner of the code-block </summary>
		public int ulx;
		
		/// <summary>The vertical coordinate of the upper left corner of the code-block </summary>
		public int uly;
		
		/// <summary>The width of the code-block </summary>
		public int w;
		
		/// <summary>The height of the code-block </summary>
		public int h;
		
		/// <summary>The coded (compressed) data length. The data is stored in the 'data'
		/// array (see super class).  
		/// </summary>
		public int dl;
		
		/// <summary>The progressive flag, false by default (see above). </summary>
		public bool prog;
		
		/// <summary>The number of layers in the coded data. </summary>
		public int nl;
		
		/// <summary>The index of the first truncation point returned </summary>
		public int ftpIdx;
		
		/// <summary>The total number of truncation points from layer 1 to the last one in
		/// this object. The number of truncation points in 'data' is
		/// 'nTrunc-ftpIdx'. 
		/// </summary>
		public int nTrunc;
		
		/// <summary>The length of each terminated segment. If null then there is only one
		/// terminated segment, and its length is 'dl'. The number of terminated
		/// segments is to be deduced from 'ftpIdx', 'nTrunc' and the coding
		/// options. This array contains all terminated segments from the 'ftpIdx'
		/// truncation point, upto, and including, the 'nTrunc-1' truncation
		/// point. Any data after 'nTrunc-1' is not included in any length. 
		/// </summary>
		public int[] tsLengths;
		
		/// <summary> Object information in a string
		/// 
		/// </summary>
		/// <returns> Information in a string
		/// 
		/// </returns>
		public override System.String ToString()
		{
			System.String str = "Coded code-block (" + m + "," + n + "): " + skipMSBP + " MSB skipped, " + dl + " bytes, " + nTrunc + " truncation points, " + nl + " layers, " + "progressive=" + prog + ", ulx=" + ulx + ", uly=" + uly + ", w=" + w + ", h=" + h + ", ftpIdx=" + ftpIdx;
			if (tsLengths != null)
			{
				str += " {";
				for (int i = 0; i < tsLengths.Length; i++)
					str += (" " + tsLengths[i]);
				str += " }";
			}
			return str;
		}
	}
}