corrade-vassal – Rev 1
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/*
* CVS identifier:
*
* $Id: ProgressionSpec.java,v 1.19 2001/05/02 14:08:42 grosbois Exp $
*
* Class: ProgressionSpec
*
* Description: Specification of the progression(s) type(s) and
* changes of progression.
*
* 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.codestream;
using CSJ2K.j2k.wavelet;
using CSJ2K.j2k.image;
using CSJ2K.j2k.util;
using CSJ2K.j2k;
namespace CSJ2K.j2k.entropy
{
/// <summary> This class extends ModuleSpec class for progression type(s) and progression
/// order changes holding purposes.
///
/// <p>It stores the progression type(s) used in the codestream. There can be
/// several progression type(s) if progression order changes are used (POC
/// markers).</p>
///
/// </summary>
public class ProgressionSpec:ModuleSpec
{
/// <summary> Creates a new ProgressionSpec object for the specified number of tiles
/// and components.
///
/// </summary>
/// <param name="nt">The number of tiles
///
/// </param>
/// <param name="nc">The number of components
///
/// </param>
/// <param name="type">the type of the specification module i.e. tile specific,
/// component specific or both. The ProgressionSpec class should only be
/// used only with the type ModuleSpec.SPEC_TYPE_TILE.
///
/// </param>
public ProgressionSpec(int nt, int nc, byte type):base(nt, nc, type)
{
if (type != ModuleSpec.SPEC_TYPE_TILE)
{
throw new System.ApplicationException("Illegal use of class ProgressionSpec !");
}
}
/// <summary> Creates a new ProgressionSpec object for the specified number of tiles,
/// components and the ParameterList instance.
///
/// </summary>
/// <param name="nt">The number of tiles
///
/// </param>
/// <param name="nc">The number of components
///
/// </param>
/// <param name="nl">The number of layer
///
/// </param>
/// <param name="dls">The number of decomposition levels specifications
///
/// </param>
/// <param name="type">the type of the specification module. The ProgressionSpec
/// class should only be used only with the type ModuleSpec.SPEC_TYPE_TILE.
///
/// </param>
/// <param name="pl">The ParameterList instance
///
/// </param>
public ProgressionSpec(int nt, int nc, int nl, IntegerSpec dls, byte type, ParameterList pl):base(nt, nc, type)
{
System.String param = pl.getParameter("Aptype");
Progression[] prog;
int mode = - 1;
if (param == null)
{
// No parameter specified
if (pl.getParameter("Rroi") == null)
{
mode = checkProgMode("res");
}
else
{
mode = checkProgMode("layer");
}
if (mode == - 1)
{
System.String errMsg = "Unknown progression type : '" + param + "'";
throw new System.ArgumentException(errMsg);
}
prog = new Progression[1];
prog[0] = new Progression(mode, 0, nc, 0, dls.Max + 1, nl);
setDefault(prog);
return ;
}
SupportClass.Tokenizer stk = new SupportClass.Tokenizer(param);
byte curSpecType = SPEC_DEF; // Specification type of the
// current parameter
bool[] tileSpec = null; // Tiles concerned by the specification
System.String word = null; // current word
System.String errMsg2 = null; // Error message
bool needInteger = false; // True if an integer value is expected
int intType = 0; // Type of read integer value (0=index of first
// resolution level, 1= index of first component, 2=index of first
// layer not included, 3= index of first resolution level not
// included, 4= index of first component not included
System.Collections.ArrayList progression = System.Collections.ArrayList.Synchronized(new System.Collections.ArrayList(10));
int tmp = 0;
Progression curProg = null;
while (stk.HasMoreTokens())
{
word = stk.NextToken();
switch (word[0])
{
case 't':
// If progression were previously found, store them
if (progression.Count > 0)
{
// Ensure that all information has been taken
curProg.ce = nc;
curProg.lye = nl;
curProg.re = dls.Max + 1;
prog = new Progression[progression.Count];
progression.CopyTo(prog);
if (curSpecType == SPEC_DEF)
{
setDefault(prog);
}
else if (curSpecType == SPEC_TILE_DEF)
{
for (int i = tileSpec.Length - 1; i >= 0; i--)
if (tileSpec[i])
{
setTileDef(i, prog);
}
}
}
progression.Clear();
intType = - 1;
needInteger = false;
// Tiles specification
tileSpec = parseIdx(word, nTiles);
curSpecType = SPEC_TILE_DEF;
break;
default:
// Here, words is either a Integer (progression bound index)
// or a String (progression order type). This is determined by
// the value of needInteger.
if (needInteger)
{
// Progression bound info
try
{
tmp = (System.Int32.Parse(word));
}
catch (System.FormatException)
{
// Progression has missing parameters
throw new System.ArgumentException("Progression " + "order" + " specification " + "has missing " + "parameters: " + param);
}
switch (intType)
{
case 0: // cs
if (tmp < 0 || tmp > (dls.Max + 1))
throw new System.ArgumentException("Invalid res_start " + "in '-Aptype'" + " option: " + tmp);
curProg.rs = tmp; break;
case 1: // rs
if (tmp < 0 || tmp > nc)
{
throw new System.ArgumentException("Invalid comp_start " + "in '-Aptype' " + "option: " + tmp);
}
curProg.cs = tmp; break;
case 2: // lye
if (tmp < 0)
throw new System.ArgumentException("Invalid layer_end " + "in '-Aptype'" + " option: " + tmp);
if (tmp > nl)
{
tmp = nl;
}
curProg.lye = tmp; break;
case 3: // ce
if (tmp < 0)
throw new System.ArgumentException("Invalid res_end " + "in '-Aptype'" + " option: " + tmp);
if (tmp > (dls.Max + 1))
{
tmp = dls.Max + 1;
}
curProg.re = tmp; break;
case 4: // re
if (tmp < 0)
throw new System.ArgumentException("Invalid comp_end " + "in '-Aptype'" + " option: " + tmp);
if (tmp > nc)
{
tmp = nc;
}
curProg.ce = tmp; break;
}
if (intType < 4)
{
intType++;
needInteger = true;
break;
}
else if (intType == 4)
{
intType = 0;
needInteger = false;
break;
}
else
{
throw new System.ApplicationException("Error in usage of 'Aptype' " + "option: " + param);
}
}
if (!needInteger)
{
// Progression type info
mode = checkProgMode(word);
if (mode == - 1)
{
errMsg2 = "Unknown progression type : '" + word + "'";
throw new System.ArgumentException(errMsg2);
}
needInteger = true;
intType = 0;
if (progression.Count == 0)
{
curProg = new Progression(mode, 0, nc, 0, dls.Max + 1, nl);
}
else
{
curProg = new Progression(mode, 0, nc, 0, dls.Max + 1, nl);
}
progression.Add(curProg);
}
break;
} // switch
} // while
if (progression.Count == 0)
{
// No progression defined
if (pl.getParameter("Rroi") == null)
{
mode = checkProgMode("res");
}
else
{
mode = checkProgMode("layer");
}
if (mode == - 1)
{
errMsg2 = "Unknown progression type : '" + param + "'";
throw new System.ArgumentException(errMsg2);
}
prog = new Progression[1];
prog[0] = new Progression(mode, 0, nc, 0, dls.Max + 1, nl);
setDefault(prog);
return ;
}
// Ensure that all information has been taken
curProg.ce = nc;
curProg.lye = nl;
curProg.re = dls.Max + 1;
// Store found progression
prog = new Progression[progression.Count];
progression.CopyTo(prog);
if (curSpecType == SPEC_DEF)
{
setDefault(prog);
}
else if (curSpecType == SPEC_TILE_DEF)
{
for (int i = tileSpec.Length - 1; i >= 0; i--)
if (tileSpec[i])
{
setTileDef(i, prog);
}
}
// Check that default value has been specified
if (getDefault() == null)
{
int ndefspec = 0;
for (int t = nt - 1; t >= 0; t--)
{
for (int c = nc - 1; c >= 0; c--)
{
if (specValType[t][c] == SPEC_DEF)
{
ndefspec++;
}
}
}
// If some tile-component have received no specification, they
// receive the default progressiveness.
if (ndefspec != 0)
{
if (pl.getParameter("Rroi") == null)
{
mode = checkProgMode("res");
}
else
{
mode = checkProgMode("layer");
}
if (mode == - 1)
{
errMsg2 = "Unknown progression type : '" + param + "'";
throw new System.ArgumentException(errMsg2);
}
prog = new Progression[1];
prog[0] = new Progression(mode, 0, nc, 0, dls.Max + 1, nl);
setDefault(prog);
}
else
{
// All tile-component have been specified, takes the first
// tile-component value as default.
setDefault(getTileCompVal(0, 0));
switch (specValType[0][0])
{
case SPEC_TILE_DEF:
for (int c = nc - 1; c >= 0; c--)
{
if (specValType[0][c] == SPEC_TILE_DEF)
specValType[0][c] = SPEC_DEF;
}
tileDef[0] = null;
break;
case SPEC_COMP_DEF:
for (int t = nt - 1; t >= 0; t--)
{
if (specValType[t][0] == SPEC_COMP_DEF)
specValType[t][0] = SPEC_DEF;
}
compDef[0] = null;
break;
case SPEC_TILE_COMP:
specValType[0][0] = SPEC_DEF;
tileCompVal["t0c0"] = null;
break;
}
}
}
}
/// <summary> Check if the progression mode exists and if so, return its integer
/// value. It returns -1 otherwise.
///
/// </summary>
/// <param name="mode">The progression mode stored in a string
///
/// </param>
/// <returns> The integer value of the progression mode or -1 if the
/// progression mode does not exist.
///
/// </returns>
/// <seealso cref="ProgressionType">
///
/// </seealso>
private int checkProgMode(System.String mode)
{
if (mode.Equals("res"))
{
return CSJ2K.j2k.codestream.ProgressionType.RES_LY_COMP_POS_PROG;
}
else if (mode.Equals("layer"))
{
return CSJ2K.j2k.codestream.ProgressionType.LY_RES_COMP_POS_PROG;
}
else if (mode.Equals("pos-comp"))
{
return CSJ2K.j2k.codestream.ProgressionType.POS_COMP_RES_LY_PROG;
}
else if (mode.Equals("comp-pos"))
{
return CSJ2K.j2k.codestream.ProgressionType.COMP_POS_RES_LY_PROG;
}
else if (mode.Equals("res-pos"))
{
return CSJ2K.j2k.codestream.ProgressionType.RES_POS_COMP_LY_PROG;
}
else
{
// No corresponding progression mode, we return -1.
return - 1;
}
}
}
}
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