corrade-vassal – Rev 1
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/// <summary>**************************************************************************
///
/// $Id: ColorSpaceMapper.java,v 1.2 2002/07/25 16:30:55 grosbois Exp $
///
/// Copyright Eastman Kodak Company, 343 State Street, Rochester, NY 14650
/// $Date $
/// ***************************************************************************
/// </summary>
using System;
using CSJ2K.j2k.image;
using CSJ2K.j2k.util;
using CSJ2K.Icc;
namespace CSJ2K.Color
{
/// <summary> This is the base class for all modules in the colorspace and icc
/// profiling steps of the decoding chain. It is responsible for the
/// allocation and iniitialization of all working storage. It provides
/// several utilities which are of generic use in preparing DataBlks
/// for use and provides default implementations for the getCompData
/// and getInternCompData methods.
///
/// </summary>
/// <seealso cref="jj2000.j2k.colorspace.ColorSpace">
/// </seealso>
/// <version> 1.0
/// </version>
/// <author> Bruce A. Kern
/// </author>
public abstract class ColorSpaceMapper:ImgDataAdapter, BlkImgDataSrc
{
private void InitBlock()
{
computed = new ComputedComponents(this);
}
/// <summary> Returns the parameters that are used in this class and implementing
/// classes. It returns a 2D String array. Each of the 1D arrays is for a
/// different option, and they have 3 elements. The first element is the
/// option name, the second one is the synopsis and the third one is a long
/// description of what the parameter is. The synopsis or description may
/// be 'null', in which case it is assumed that there is no synopsis or
/// description of the option, respectively. Null may be returned if no
/// options are supported.
///
/// </summary>
/// <returns> the options name, their synopsis and their explanation, or null
/// if no options are supported.
///
/// </returns>
public static System.String[][] ParameterInfo
{
get
{
return pinfo;
}
}
/// <summary> Arrange for the input DataBlk to receive an
/// appropriately sized and typed data buffer
/// </summary>
/// <param name="db">input DataBlk
/// </param>
/// <seealso cref="jj2000.j2k.image.DataBlk">
/// </seealso>
protected internal static DataBlk InternalBuffer
{
set
{
switch (value.DataType)
{
case DataBlk.TYPE_INT:
if (value.Data == null || ((int[]) value.Data).Length < value.w * value.h)
value.Data = new int[value.w * value.h];
break;
case DataBlk.TYPE_FLOAT:
if (value.Data == null || ((float[]) value.Data).Length < value.w * value.h)
{
value.Data = new float[value.w * value.h];
}
break;
default:
throw new System.ArgumentException("Invalid output datablock" + " type");
}
}
}
/// <summary>The prefix for ICC Profiler options </summary>
public const char OPT_PREFIX = 'I';
/// <summary>Platform dependant end of line String. </summary>
//UPGRADE_NOTE: Final was removed from the declaration of 'eol '. "ms-help://MS.VSCC.v80/dv_commoner/local/redirect.htm?index='!DefaultContextWindowIndex'&keyword='jlca1003'"
protected internal static readonly System.String eol = System.Environment.NewLine;
// Temporary data buffers needed during profiling.
protected internal DataBlkInt[] inInt; // Integer input data.
protected internal DataBlkFloat[] inFloat; // Floating point input data.
protected internal DataBlkInt[] workInt; // Input data shifted to zero-offset
protected internal DataBlkFloat[] workFloat; // Input data shifted to zero-offset.
protected internal int[][] dataInt; // Points to input data.
protected internal float[][] dataFloat; // Points to input data.
protected internal float[][] workDataFloat; // References working data pixels.
protected internal int[][] workDataInt; // References working data pixels.
/* input data parameters by component */
protected internal int[] shiftValueArray = null;
protected internal int[] maxValueArray = null;
protected internal int[] fixedPtBitsArray = null;
/// <summary>The list of parameters that are accepted for ICC profiling.</summary>
//UPGRADE_NOTE: Final was removed from the declaration of 'pinfo'. "ms-help://MS.VSCC.v80/dv_commoner/local/redirect.htm?index='!DefaultContextWindowIndex'&keyword='jlca1003'"
private static readonly System.String[][] pinfo = new System.String[][]{new System.String[]{"IcolorSpacedebug", null, "Print debugging messages during colorspace mapping.", "off"}};
/// <summary>Parameter Specs </summary>
protected internal ParameterList pl = null;
/// <summary>ColorSpace info </summary>
protected internal ColorSpace csMap = null;
/// <summary>Number of image components </summary>
protected internal int ncomps = 0;
/// <summary>The image source. </summary>
protected internal BlkImgDataSrc src = null;
/// <summary>The image source data per component. </summary>
protected internal DataBlk[] srcBlk = null;
//UPGRADE_NOTE: Field 'EnclosingInstance' was added to class 'ComputedComponents' to access its enclosing instance. "ms-help://MS.VSCC.v80/dv_commoner/local/redirect.htm?index='!DefaultContextWindowIndex'&keyword='jlca1019'"
protected internal class ComputedComponents
{
private void InitBlock(ColorSpaceMapper enclosingInstance)
{
this.enclosingInstance = enclosingInstance;
}
private ColorSpaceMapper enclosingInstance;
public ColorSpaceMapper Enclosing_Instance
{
get
{
return enclosingInstance;
}
}
//private int tIdx = - 1;
private int h = - 1;
private int w = - 1;
private int ulx = - 1;
private int uly = - 1;
private int offset = - 1;
private int scanw = - 1;
public ComputedComponents(ColorSpaceMapper enclosingInstance)
{
InitBlock(enclosingInstance);
clear();
}
public ComputedComponents(ColorSpaceMapper enclosingInstance, DataBlk db)
{
InitBlock(enclosingInstance);
set_Renamed(db);
}
public virtual void set_Renamed(DataBlk db)
{
h = db.h;
w = db.w;
ulx = db.ulx;
uly = db.uly;
offset = db.offset;
scanw = db.scanw;
}
public virtual void clear()
{
h = w = ulx = uly = offset = scanw = - 1;
}
public bool Equals(ComputedComponents cc)
{
return (h == cc.h && w == cc.w && ulx == cc.ulx && uly == cc.uly && offset == cc.offset && scanw == cc.scanw);
}
/* end class ComputedComponents */
}
//UPGRADE_NOTE: The initialization of 'computed' was moved to method 'InitBlock'. "ms-help://MS.VSCC.v80/dv_commoner/local/redirect.htm?index='!DefaultContextWindowIndex'&keyword='jlca1005'"
protected internal ComputedComponents computed;
/// <summary> Copy the DataBlk geometry from source to target
/// DataBlk and assure that the target has an appropriate
/// data buffer.
/// </summary>
/// <param name="tgt">has its geometry set.
/// </param>
/// <param name="src">used to get the new geometric parameters.
/// </param>
protected internal static void copyGeometry(DataBlk tgt, DataBlk src)
{
tgt.offset = 0;
tgt.h = src.h;
tgt.w = src.w;
tgt.ulx = src.ulx;
tgt.uly = src.uly;
tgt.scanw = src.w;
// Create data array if necessary
InternalBuffer = tgt;
}
/// <summary> Factory method for creating instances of this class.</summary>
/// <param name="src">-- source of image data
/// </param>
/// <param name="csMap">-- provides colorspace info
/// </param>
/// <returns> ColorSpaceMapper instance
/// </returns>
/// <exception cref="IOException">profile access exception
/// </exception>
public static BlkImgDataSrc createInstance(BlkImgDataSrc src, ColorSpace csMap)
{
// Check parameters
csMap.pl.checkList(OPT_PREFIX, CSJ2K.j2k.util.ParameterList.toNameArray(pinfo));
// Perform ICCProfiling or ColorSpace tranfsormation.
if (csMap.Method == ColorSpace.MethodEnum.ICC_PROFILED)
{
return ICCProfiler.createInstance(src, csMap);
}
else
{
ColorSpace.CSEnum colorspace = csMap.getColorSpace();
if (colorspace == ColorSpace.CSEnum.sRGB)
{
return EnumeratedColorSpaceMapper.createInstance(src, csMap);
}
else if (colorspace == ColorSpace.CSEnum.GreyScale)
{
return EnumeratedColorSpaceMapper.createInstance(src, csMap);
}
else if (colorspace == ColorSpace.CSEnum.sYCC)
{
return SYccColorSpaceMapper.createInstance(src, csMap);
}
if (colorspace == ColorSpace.CSEnum.esRGB)
{
return EsRgbColorSpaceMapper.createInstance(src, csMap);
}
else if (colorspace == ColorSpace.CSEnum.Unknown)
{
return null;
}
else
{
throw new ColorSpaceException("Bad color space specification in image");
}
}
}
/// <summary> Ctor which creates an ICCProfile for the image and initializes
/// all data objects (input, working, and output).
///
/// </summary>
/// <param name="src">-- Source of image data
/// </param>
/// <param name="csm">-- provides colorspace info
///
/// </param>
protected internal ColorSpaceMapper(BlkImgDataSrc src, ColorSpace csMap):base(src)
{
InitBlock();
this.src = src;
this.csMap = csMap;
initialize();
/* end ColorSpaceMapper ctor */
}
/// <summary>General utility used by ctors </summary>
private void initialize()
{
this.pl = csMap.pl;
this.ncomps = src.NumComps;
shiftValueArray = new int[ncomps];
maxValueArray = new int[ncomps];
fixedPtBitsArray = new int[ncomps];
srcBlk = new DataBlk[ncomps];
inInt = new DataBlkInt[ncomps];
inFloat = new DataBlkFloat[ncomps];
workInt = new DataBlkInt[ncomps];
workFloat = new DataBlkFloat[ncomps];
dataInt = new int[ncomps][];
dataFloat = new float[ncomps][];
workDataInt = new int[ncomps][];
workDataFloat = new float[ncomps][];
dataInt = new int[ncomps][];
dataFloat = new float[ncomps][];
/* For each component, get a reference to the pixel data and
* set up working DataBlks for both integer and float output.
*/
for (int i = 0; i < ncomps; ++i)
{
shiftValueArray[i] = 1 << (src.getNomRangeBits(i) - 1);
maxValueArray[i] = (1 << src.getNomRangeBits(i)) - 1;
fixedPtBitsArray[i] = src.getFixedPoint(i);
inInt[i] = new DataBlkInt();
inFloat[i] = new DataBlkFloat();
workInt[i] = new DataBlkInt();
workInt[i].progressive = inInt[i].progressive;
workFloat[i] = new DataBlkFloat();
workFloat[i].progressive = inFloat[i].progressive;
}
}
/// <summary> Returns the number of bits, referred to as the "range bits",
/// corresponding to the nominal range of the data in the specified
/// component. If this number is <i>b</b> then for unsigned data the
/// nominal range is between 0 and 2^b-1, and for signed data it is between
/// -2^(b-1) and 2^(b-1)-1. For floating point data this value is not
/// applicable.
///
/// </summary>
/// <param name="c">The index of the component.
///
/// </param>
/// <returns> The number of bits corresponding to the nominal range of the
/// data. Fro floating-point data this value is not applicable and the
/// return value is undefined.
/// </returns>
public virtual int getFixedPoint(int c)
{
return src.getFixedPoint(c);
}
/// <summary> Returns, in the blk argument, a block of image data containing the
/// specifed rectangular area, in the specified component. The data is
/// returned, as a copy of the internal data, therefore the returned data
/// can be modified "in place".
///
/// <P>The rectangular area to return is specified by the 'ulx', 'uly', 'w'
/// and 'h' members of the 'blk' argument, relative to the current
/// tile. These members are not modified by this method. The 'offset' of
/// the returned data is 0, and the 'scanw' is the same as the block's
/// width. See the 'DataBlk' class.
///
/// <P>This method, in general, is less efficient than the
/// 'getInternCompData()' method since, in general, it copies the
/// data. However if the array of returned data is to be modified by the
/// caller then this method is preferable.
///
/// <P>If the data array in 'blk' is 'null', then a new one is created. If
/// the data array is not 'null' then it is reused, and it must be large
/// enough to contain the block's data. Otherwise an 'ArrayStoreException'
/// or an 'IndexOutOfBoundsException' is thrown by the Java system.
///
/// <P>The returned data may have its 'progressive' attribute set. In this
/// case the returned data is only an approximation of the "final" data.
///
/// </summary>
/// <param name="blk">Its coordinates and dimensions specify the area to return,
/// relative to the current tile. If it contains a non-null data array,
/// then it must be large enough. If it contains a null data array a new
/// one is created. Some fields in this object are modified to return the
/// data.
///
/// </param>
/// <param name="c">The index of the component from which to get the data.
///
/// </param>
/// <seealso cref="getInternCompData">
///
/// </seealso>
public virtual DataBlk getCompData(DataBlk out_Renamed, int c)
{
return src.getCompData(out_Renamed, c);
}
/// <summary> Returns, in the blk argument, a block of image data containing the
/// specifed rectangular area, in the specified component. The data is
/// returned, as a reference to the internal data, if any, instead of as a
/// copy, therefore the returned data should not be modified.
///
/// <P>The rectangular area to return is specified by the 'ulx', 'uly', 'w'
/// and 'h' members of the 'blk' argument, relative to the current
/// tile. These members are not modified by this method. The 'offset' and
/// 'scanw' of the returned data can be arbitrary. See the 'DataBlk' class.
///
/// <P>This method, in general, is more efficient than the 'getCompData()'
/// method since it may not copy the data. However if the array of returned
/// data is to be modified by the caller then the other method is probably
/// preferable.
///
/// <P>If possible, the data in the returned 'DataBlk' should be the
/// internal data itself, instead of a copy, in order to increase the data
/// transfer efficiency. However, this depends on the particular
/// implementation (it may be more convenient to just return a copy of the
/// data). This is the reason why the returned data should not be modified.
///
/// <P>If the data array in <tt>blk</tt> is <tt>null</tt>, then a new one
/// is created if necessary. The implementation of this interface may
/// choose to return the same array or a new one, depending on what is more
/// efficient. Therefore, the data array in <tt>blk</tt> prior to the
/// method call should not be considered to contain the returned data, a
/// new array may have been created. Instead, get the array from
/// <tt>blk</tt> after the method has returned.
///
/// <P>The returned data may have its 'progressive' attribute set. In this
/// case the returned data is only an approximation of the "final" data.
///
/// </summary>
/// <param name="blk">Its coordinates and dimensions specify the area to return,
/// relative to the current tile. Some fields in this object are modified
/// to return the data.
///
/// </param>
/// <param name="c">The index of the component from which to get the data.
///
/// </param>
/// <returns> The requested DataBlk
///
/// </returns>
/// <seealso cref="getCompData">
///
/// </seealso>
public virtual DataBlk getInternCompData(DataBlk out_Renamed, int c)
{
return src.getInternCompData(out_Renamed, c);
}
/* end class ColorSpaceMapper */
}
}
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