corrade-vassal – Rev 1
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/*
* CVS identifier:
*
* $Id: PrecinctSizeSpec.java,v 1.18 2001/09/14 09:26:58 grosbois Exp $
*
* Class: PrecinctSizeSpec
*
* Description: Specification of the precinct sizes
*
*
*
* 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 precinct partition sizes holding
/// purposes.
///
/// <p>It stores the size a of precinct when precinct partition is used or not.
/// If precinct partition is used, we can have several packets for a given
/// resolution level whereas there is only one packet per resolution level if
/// no precinct partition is used.
///
/// </summary>
public class PrecinctSizeSpec:ModuleSpec
{
/// <summary>Name of the option </summary>
private const System.String optName = "Cpp";
/// <summary>Reference to wavelet number of decomposition levels for each
/// tile-component.
/// </summary>
private IntegerSpec dls;
/// <summary> Creates a new PrecinctSizeSpec 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.
///
/// </param>
/// <param name="dls">Reference to the number of decomposition levels
/// specification
///
/// </param>
public PrecinctSizeSpec(int nt, int nc, byte type, IntegerSpec dls):base(nt, nc, type)
{
this.dls = dls;
}
/// <summary> Creates a new PrecinctSizeSpec object for the specified number of tiles
/// and components and the ParameterList instance.
///
/// </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.
///
/// </param>
/// <param name="imgsrc">The image source (used to get the image size)
///
/// </param>
/// <param name="pl">The ParameterList instance
///
/// </param>
public PrecinctSizeSpec(int nt, int nc, byte type, BlkImgDataSrc imgsrc, IntegerSpec dls, ParameterList pl):base(nt, nc, type)
{
this.dls = dls;
// The precinct sizes are stored in a 2 elements vector array, the
// first element containing a vector for the precincts width for each
// resolution level and the second element containing a vector for the
// precincts height for each resolution level. The precincts sizes are
// specified from the highest resolution level to the lowest one
// (i.e. 0). If there are less elements than the number of
// decomposition levels, the last element is used for all remaining
// resolution levels (i.e. if the precincts sizes are specified only
// for resolutions levels 5, 4 and 3, then the precincts size for
// resolution levels 2, 1 and 0 will be the same as the size used for
// resolution level 3).
// Boolean used to know if we were previously reading a precinct's
// size or if we were reading something else.
bool wasReadingPrecinctSize = false;
System.String param = pl.getParameter(optName);
// Set precinct sizes to default i.e. 2^15 =
// Markers.PRECINCT_PARTITION_DEF_SIZE
System.Collections.ArrayList[] tmpv = new System.Collections.ArrayList[2];
tmpv[0] = System.Collections.ArrayList.Synchronized(new System.Collections.ArrayList(10)); // ppx
tmpv[0].Add((System.Int32) CSJ2K.j2k.codestream.Markers.PRECINCT_PARTITION_DEF_SIZE);
tmpv[1] = System.Collections.ArrayList.Synchronized(new System.Collections.ArrayList(10)); // ppy
tmpv[1].Add((System.Int32) CSJ2K.j2k.codestream.Markers.PRECINCT_PARTITION_DEF_SIZE);
setDefault(tmpv);
if (param == null)
{
// No precinct size specified in the command line so we do not try
// to parse it.
return ;
}
// Precinct partition is used : parse arguments
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
bool[] compSpec = null; // Components concerned by the specification
int ci, ti; //i, xIdx removed
bool endOfParamList = false;
System.String word = null; // current word
System.Int32 w, h;
System.String errMsg = null;
while ((stk.HasMoreTokens() || wasReadingPrecinctSize) && !endOfParamList)
{
System.Collections.ArrayList[] v = new System.Collections.ArrayList[2]; // v[0] : ppx, v[1] : ppy
// We do not read the next token if we were reading a precinct's
// size argument as we have already read the next token into word.
if (!wasReadingPrecinctSize)
{
word = stk.NextToken();
}
wasReadingPrecinctSize = false;
switch (word[0])
{
case 't': // Tiles specification
tileSpec = parseIdx(word, nTiles);
if (curSpecType == SPEC_COMP_DEF)
{
curSpecType = SPEC_TILE_COMP;
}
else
{
curSpecType = SPEC_TILE_DEF;
}
break;
case 'c': // Components specification
compSpec = parseIdx(word, nComp);
if (curSpecType == SPEC_TILE_DEF)
{
curSpecType = SPEC_TILE_COMP;
}
else
{
curSpecType = SPEC_COMP_DEF;
}
break;
default:
if (!System.Char.IsDigit(word[0]))
{
errMsg = "Bad construction for parameter: " + word;
throw new System.ArgumentException(errMsg);
}
// Initialises Vector objects
v[0] = System.Collections.ArrayList.Synchronized(new System.Collections.ArrayList(10)); // ppx
v[1] = System.Collections.ArrayList.Synchronized(new System.Collections.ArrayList(10)); // ppy
while (true)
{
// Now get the precinct dimensions
try
{
// Get precinct width
w = System.Int32.Parse(word);
// Get next word in argument list
try
{
word = stk.NextToken();
}
catch (System.ArgumentOutOfRangeException)
{
errMsg = "'" + optName + "' option : could not " + "parse the precinct's width";
throw new System.ArgumentException(errMsg);
}
// Get precinct height
h = System.Int32.Parse(word);
if (w != (1 << MathUtil.log2(w)) || h != (1 << MathUtil.log2(h)))
{
errMsg = "Precinct dimensions must be powers of 2";
throw new System.ArgumentException(errMsg);
}
}
catch (System.FormatException)
{
errMsg = "'" + optName + "' option : the argument '" + word + "' could not be parsed.";
throw new System.ArgumentException(errMsg);
}
// Store packet's dimensions in Vector arrays
v[0].Add(w);
v[1].Add(h);
// Try to get the next token
if (stk.HasMoreTokens())
{
word = stk.NextToken();
if (!System.Char.IsDigit(word[0]))
{
// The next token does not start with a digit so
// it is not a precinct's size argument. We set
// the wasReadingPrecinctSize booleen such that we
// know that we don't have to read another token
// and check for the end of the parameters list.
wasReadingPrecinctSize = true;
if (curSpecType == SPEC_DEF)
{
setDefault(v);
}
else if (curSpecType == SPEC_TILE_DEF)
{
for (ti = tileSpec.Length - 1; ti >= 0; ti--)
{
if (tileSpec[ti])
{
setTileDef(ti, v);
}
}
}
else if (curSpecType == SPEC_COMP_DEF)
{
for (ci = compSpec.Length - 1; ci >= 0; ci--)
{
if (compSpec[ci])
{
setCompDef(ci, v);
}
}
}
else
{
for (ti = tileSpec.Length - 1; ti >= 0; ti--)
{
for (ci = compSpec.Length - 1; ci >= 0; ci--)
{
if (tileSpec[ti] && compSpec[ci])
{
setTileCompVal(ti, ci, v);
}
}
}
}
// Re-initialize
curSpecType = SPEC_DEF;
tileSpec = null;
compSpec = null;
// Go back to 'normal' parsing
break;
}
else
{
// Next token starts with a digit so read it
}
}
else
{
// We have reached the end of the parameters list so
// we store the last precinct's sizes and we stop
if (curSpecType == SPEC_DEF)
{
setDefault(v);
}
else if (curSpecType == SPEC_TILE_DEF)
{
for (ti = tileSpec.Length - 1; ti >= 0; ti--)
{
if (tileSpec[ti])
{
setTileDef(ti, v);
}
}
}
else if (curSpecType == SPEC_COMP_DEF)
{
for (ci = compSpec.Length - 1; ci >= 0; ci--)
{
if (compSpec[ci])
{
setCompDef(ci, v);
}
}
}
else
{
for (ti = tileSpec.Length - 1; ti >= 0; ti--)
{
for (ci = compSpec.Length - 1; ci >= 0; ci--)
{
if (tileSpec[ti] && compSpec[ci])
{
setTileCompVal(ti, ci, v);
}
}
}
}
endOfParamList = true;
break;
}
} // while (true)
break;
} // switch
} // while
}
/// <summary> Returns the precinct partition width in component 'n' and tile 't' at
/// resolution level 'rl'. If the tile index is equal to -1 or if the
/// component index is equal to -1 it means that those should not be taken
/// into account.
///
/// </summary>
/// <param name="t">The tile index, in raster scan order. Specify -1 if it is not
/// a specific tile.
///
/// </param>
/// <param name="c">The component index. Specify -1 if it is not a specific
/// component.
///
/// </param>
/// <param name="rl">The resolution level
///
/// </param>
/// <returns> The precinct partition width in component 'c' and tile 't' at
/// resolution level 'rl'.
///
/// </returns>
public virtual int getPPX(int t, int c, int rl)
{
int mrl, idx;
System.Collections.ArrayList[] v = null;
bool tileSpecified = (t != - 1?true:false);
bool compSpecified = (c != - 1?true:false);
// Get the maximum number of decomposition levels and the object
// (Vector array) containing the precinct dimensions (width and
// height) for the specified (or not) tile/component
if (tileSpecified && compSpecified)
{
mrl = ((System.Int32) dls.getTileCompVal(t, c));
v = (System.Collections.ArrayList[]) getTileCompVal(t, c);
}
else if (tileSpecified && !compSpecified)
{
mrl = ((System.Int32) dls.getTileDef(t));
v = (System.Collections.ArrayList[]) getTileDef(t);
}
else if (!tileSpecified && compSpecified)
{
mrl = ((System.Int32) dls.getCompDef(c));
v = (System.Collections.ArrayList[]) getCompDef(c);
}
else
{
mrl = ((System.Int32) dls.getDefault());
v = (System.Collections.ArrayList[]) getDefault();
}
idx = mrl - rl;
if (v[0].Count > idx)
{
return ((System.Int32) v[0][idx]);
}
else
{
return ((System.Int32) v[0][v[0].Count - 1]);
}
}
/// <summary> Returns the precinct partition height in component 'n' and tile 't' at
/// resolution level 'rl'. If the tile index is equal to -1 or if the
/// component index is equal to -1 it means that those should not be taken
/// into account.
///
/// </summary>
/// <param name="t">The tile index, in raster scan order. Specify -1 if it is not
/// a specific tile.
///
/// </param>
/// <param name="c">The component index. Specify -1 if it is not a specific
/// component.
///
/// </param>
/// <param name="rl">The resolution level.
///
/// </param>
/// <returns> The precinct partition width in component 'n' and tile 't' at
/// resolution level 'rl'.
///
/// </returns>
public virtual int getPPY(int t, int c, int rl)
{
int mrl, idx;
System.Collections.ArrayList[] v = null;
bool tileSpecified = (t != - 1?true:false);
bool compSpecified = (c != - 1?true:false);
// Get the maximum number of decomposition levels and the object
// (Vector array) containing the precinct dimensions (width and
// height) for the specified (or not) tile/component
if (tileSpecified && compSpecified)
{
mrl = ((System.Int32) dls.getTileCompVal(t, c));
v = (System.Collections.ArrayList[]) getTileCompVal(t, c);
}
else if (tileSpecified && !compSpecified)
{
mrl = ((System.Int32) dls.getTileDef(t));
v = (System.Collections.ArrayList[]) getTileDef(t);
}
else if (!tileSpecified && compSpecified)
{
mrl = ((System.Int32) dls.getCompDef(c));
v = (System.Collections.ArrayList[]) getCompDef(c);
}
else
{
mrl = ((System.Int32) dls.getDefault());
v = (System.Collections.ArrayList[]) getDefault();
}
idx = mrl - rl;
if (v[1].Count > idx)
{
return ((System.Int32) v[1][idx]);
}
else
{
return ((System.Int32) v[1][v[1].Count - 1]);
}
}
}
}
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