1f9f3ad00b
* Removing CSJ2K.dll from bin/ now that we have it in prebuild.xml git-svn-id: http://libopenmetaverse.googlecode.com/svn/libopenmetaverse/trunk@3119 52acb1d6-8a22-11de-b505-999d5b087335
254 lines
8.4 KiB
C#
254 lines
8.4 KiB
C#
/*
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* CVS identifier:
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*
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* $Id: QuantStepSizeSpec.java,v 1.12 2001/10/24 12:05:04 grosbois Exp $
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*
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* Class: QuantStepSizeSpec
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*
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* Description: Quantization base normalized step size specifications
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*
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*
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*
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* COPYRIGHT:
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*
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* This software module was originally developed by Raphaël Grosbois and
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* Diego Santa Cruz (Swiss Federal Institute of Technology-EPFL); Joel
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* Askelöf (Ericsson Radio Systems AB); and Bertrand Berthelot, David
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* Bouchard, Félix Henry, Gerard Mozelle and Patrice Onno (Canon Research
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* Centre France S.A) in the course of development of the JPEG2000
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* standard as specified by ISO/IEC 15444 (JPEG 2000 Standard). This
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* software module is an implementation of a part of the JPEG 2000
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* Standard. Swiss Federal Institute of Technology-EPFL, Ericsson Radio
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* Systems AB and Canon Research Centre France S.A (collectively JJ2000
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* Partners) agree not to assert against ISO/IEC and users of the JPEG
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* 2000 Standard (Users) any of their rights under the copyright, not
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* including other intellectual property rights, for this software module
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* with respect to the usage by ISO/IEC and Users of this software module
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* or modifications thereof for use in hardware or software products
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* claiming conformance to the JPEG 2000 Standard. Those intending to use
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* this software module in hardware or software products are advised that
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* their use may infringe existing patents. The original developers of
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* this software module, JJ2000 Partners and ISO/IEC assume no liability
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* for use of this software module or modifications thereof. No license
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* or right to this software module is granted for non JPEG 2000 Standard
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* conforming products. JJ2000 Partners have full right to use this
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* software module for his/her own purpose, assign or donate this
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* software module to any third party and to inhibit third parties from
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* using this software module for non JPEG 2000 Standard conforming
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* products. This copyright notice must be included in all copies or
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* derivative works of this software module.
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*
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* Copyright (c) 1999/2000 JJ2000 Partners.
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* */
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using System;
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using CSJ2K.j2k.util;
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using CSJ2K.j2k;
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namespace CSJ2K.j2k.quantization
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{
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/// <summary> This class extends ModuleSpec class in order to hold specifications about
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/// the quantization base normalized step size to use in each tile-component.
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///
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/// </summary>
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/// <seealso cref="ModuleSpec">
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///
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/// </seealso>
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public class QuantStepSizeSpec:ModuleSpec
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{
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/// <summary> Constructs an empty 'QuantStepSizeSpec' with specified number of
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/// tile and components. This constructor is called by the decoder.
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///
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/// </summary>
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/// <param name="nt">Number of tiles
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///
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/// </param>
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/// <param name="nc">Number of components
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///
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/// </param>
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/// <param name="type">the type of the specification module i.e. tile specific,
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/// component specific or both.
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///
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/// </param>
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public QuantStepSizeSpec(int nt, int nc, byte type):base(nt, nc, type)
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{
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}
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/// <summary> Constructs a new 'QuantStepSizeSpec' for the specified number of
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/// components and tiles and the arguments of "-Qstep" option.
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///
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/// </summary>
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/// <param name="nt">The number of tiles
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///
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/// </param>
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/// <param name="nc">The number of components
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///
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/// </param>
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/// <param name="type">the type of the specification module i.e. tile specific,
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/// component specific or both.
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///
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/// </param>
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/// <param name="pl">The ParameterList
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///
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/// </param>
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public QuantStepSizeSpec(int nt, int nc, byte type, ParameterList pl):base(nt, nc, type)
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{
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System.String param = pl.getParameter("Qstep");
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if (param == null)
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{
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throw new System.ArgumentException("Qstep option not specified");
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}
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// Parse argument
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SupportClass.Tokenizer stk = new SupportClass.Tokenizer(param);
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System.String word; // current word
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byte curSpecType = SPEC_DEF; // Specification type of the
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// current parameter
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bool[] tileSpec = null; // Tiles concerned by the specification
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bool[] compSpec = null; // Components concerned by the specification
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System.Single value_Renamed; // value of the current step size
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while (stk.HasMoreTokens())
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{
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word = stk.NextToken().ToLower();
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switch (word[0])
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{
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case 't': // Tiles specification
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tileSpec = parseIdx(word, nTiles);
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if (curSpecType == SPEC_COMP_DEF)
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curSpecType = SPEC_TILE_COMP;
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else
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curSpecType = SPEC_TILE_DEF;
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break;
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case 'c': // Components specification
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compSpec = parseIdx(word, nComp);
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if (curSpecType == SPEC_TILE_DEF)
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curSpecType = SPEC_TILE_COMP;
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else
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curSpecType = SPEC_COMP_DEF;
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break;
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default: // Step size value
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try
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{
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//UPGRADE_WARNING: Data types in Visual C# might be different. Verify the accuracy of narrowing conversions. "ms-help://MS.VSCC.v80/dv_commoner/local/redirect.htm?index='!DefaultContextWindowIndex'&keyword='jlca1042'"
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value_Renamed = System.Single.Parse(word);
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}
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catch (System.FormatException)
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{
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throw new System.ArgumentException("Bad parameter for " + "-Qstep option : " + word);
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}
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//UPGRADE_TODO: The equivalent in .NET for method 'java.lang.Float.floatValue' may return a different value. "ms-help://MS.VSCC.v80/dv_commoner/local/redirect.htm?index='!DefaultContextWindowIndex'&keyword='jlca1043'"
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if ((float) value_Renamed <= 0.0f)
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{
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//UPGRADE_TODO: The equivalent in .NET for method 'java.lang.Float.toString' may return a different value. "ms-help://MS.VSCC.v80/dv_commoner/local/redirect.htm?index='!DefaultContextWindowIndex'&keyword='jlca1043'"
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throw new System.ArgumentException("Normalized base step " + "must be positive : " + value_Renamed);
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}
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if (curSpecType == SPEC_DEF)
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{
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setDefault((System.Object) value_Renamed);
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}
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else if (curSpecType == SPEC_TILE_DEF)
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{
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for (int i = tileSpec.Length - 1; i >= 0; i--)
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if (tileSpec[i])
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{
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setTileDef(i, (System.Object) value_Renamed);
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}
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}
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else if (curSpecType == SPEC_COMP_DEF)
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{
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for (int i = compSpec.Length - 1; i >= 0; i--)
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if (compSpec[i])
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{
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setCompDef(i, (System.Object) value_Renamed);
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}
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}
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else
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{
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for (int i = tileSpec.Length - 1; i >= 0; i--)
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{
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for (int j = compSpec.Length - 1; j >= 0; j--)
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{
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if (tileSpec[i] && compSpec[j])
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{
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setTileCompVal(i, j, (System.Object) value_Renamed);
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}
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}
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}
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}
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// Re-initialize
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curSpecType = SPEC_DEF;
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tileSpec = null;
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compSpec = null;
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break;
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}
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}
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// Check that default value has been specified
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if (getDefault() == null)
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{
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int ndefspec = 0;
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for (int t = nt - 1; t >= 0; t--)
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{
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for (int c = nc - 1; c >= 0; c--)
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{
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if (specValType[t][c] == SPEC_DEF)
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{
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ndefspec++;
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}
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}
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}
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// If some tile-component have received no specification, it takes
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// the default value defined in ParameterList
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if (ndefspec != 0)
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{
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//UPGRADE_WARNING: Data types in Visual C# might be different. Verify the accuracy of narrowing conversions. "ms-help://MS.VSCC.v80/dv_commoner/local/redirect.htm?index='!DefaultContextWindowIndex'&keyword='jlca1042'"
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setDefault((System.Object) System.Single.Parse(pl.DefaultParameterList.getParameter("Qstep")));
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}
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else
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{
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// All tile-component have been specified, takes the first
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// tile-component value as default.
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setDefault(getTileCompVal(0, 0));
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switch (specValType[0][0])
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{
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case SPEC_TILE_DEF:
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for (int c = nc - 1; c >= 0; c--)
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{
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if (specValType[0][c] == SPEC_TILE_DEF)
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specValType[0][c] = SPEC_DEF;
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}
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tileDef[0] = null;
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break;
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case SPEC_COMP_DEF:
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for (int t = nt - 1; t >= 0; t--)
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{
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if (specValType[t][0] == SPEC_COMP_DEF)
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specValType[t][0] = SPEC_DEF;
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}
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compDef[0] = null;
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break;
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case SPEC_TILE_COMP:
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specValType[0][0] = SPEC_DEF;
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tileCompVal["t0c0"] = null;
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break;
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}
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}
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}
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}
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}
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} |