corrade-vassal – Rev 1
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/*
* CVS identifier:
*
* $Id: WTFilterSpec.java,v 1.10 2000/09/05 09:26:08 grosbois Exp $
*
* Class: WTFilterSpec
*
* Description: Generic class for storing wavelet filter specs
*
*
*
* 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;
namespace CSJ2K.j2k.wavelet
{
/// <summary> This is the generic class from which the ones that hold the analysis or
/// synthesis filters to be used in each part of the image derive. See
/// AnWTFilterSpec and SynWTFilterSpec.
///
/// <P>The filters to use are defined by a hierarchy. The hierarchy is:
///
/// <P>- Tile and component specific filters<br>
/// - Tile specific default filters<br>
/// - Component main default filters<br>
/// - Main default filters<br>
///
/// <P>At the moment tiles are not supported by this class.
///
/// </summary>
/// <seealso cref="jj2000.j2k.wavelet.analysis.AnWTFilterSpec">
///
/// </seealso>
/// <seealso cref="jj2000.j2k.wavelet.synthesis.SynWTFilterSpec">
///
/// </seealso>
public abstract class WTFilterSpec
{
/// <summary> Returns the data type used by the filters in this object, as defined in
/// the 'DataBlk' interface.
///
/// </summary>
/// <returns> The data type of the filters in this object
///
/// </returns>
/// <seealso cref="jj2000.j2k.image.DataBlk">
///
///
///
/// </seealso>
public abstract int WTDataType{get;}
/// <summary>The identifier for "main default" specified filters </summary>
public const byte FILTER_SPEC_MAIN_DEF = 0;
/// <summary>The identifier for "component default" specified filters </summary>
public const byte FILTER_SPEC_COMP_DEF = 1;
/// <summary>The identifier for "tile specific default" specified filters </summary>
public const byte FILTER_SPEC_TILE_DEF = 2;
/// <summary>The identifier for "tile and component specific" specified filters </summary>
public const byte FILTER_SPEC_TILE_COMP = 3;
/// <summary>The spec type for each tile and component. The first index is the
/// component index, the second is the tile index. NOTE: The tile specific
/// things are not supported yet.
/// </summary>
// Use byte to save memory (no need for speed here).
protected internal byte[] specValType;
/// <summary> Constructs a 'WTFilterSpec' object, initializing all the components and
/// tiles to the 'FILTER_SPEC_MAIN_DEF' spec type, for the specified number
/// of components and tiles.
///
/// <P>NOTE: The tile specific things are not supported yet
///
/// </summary>
/// <param name="nc">The number of components
///
/// </param>
/// <param name="nt">The number of tiles
///
///
///
/// </param>
protected internal WTFilterSpec(int nc)
{
specValType = new byte[nc];
}
/// <summary> Returns the type of specification for the filters in the specified
/// component and tile. The specification type is one of:
/// 'FILTER_SPEC_MAIN_DEF', 'FILTER_SPEC_COMP_DEF', 'FILTER_SPEC_TILE_DEF',
/// 'FILTER_SPEC_TILE_COMP'.
///
/// <P>NOTE: The tile specific things are not supported yet
///
/// </summary>
/// <param name="n">The component index
///
/// </param>
/// <param name="t">The tile index, in raster scan order.
///
/// </param>
/// <returns> The specification type for component 'n' and tile 't'.
///
///
///
/// </returns>
public virtual byte getKerSpecType(int n)
{
return specValType[n];
}
}
}
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