eff1ff4b41
* Fixed a typo in OpenJPEG.J2KLayerInfo (only affected debug display) git-svn-id: http://libopenmetaverse.googlecode.com/svn/libopenmetaverse/trunk@3118 52acb1d6-8a22-11de-b505-999d5b087335
514 lines
16 KiB
C#
514 lines
16 KiB
C#
/*
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* CVS identifier:
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*
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* $Id: ImgDataAdapter.java,v 1.8 2001/09/14 09:17:23 grosbois Exp $
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*
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* Class: ImgDataAdapter
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*
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* Description: A default implementation of the ImgData
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* interface that has an ImgData source and just
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* returns the values of the source.
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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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namespace CSJ2K.j2k.image
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{
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/// <summary> This class provides a default implementation of the methods in the
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/// 'ImgData' interface. The default implementation is just to return the value
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/// of the source, where the source is another 'ImgData' object.
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///
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/// <p>This abstract class can be used to facilitate the development of other
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/// classes that implement 'ImgData'. For example a YCbCr color transform can
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/// inherit from this class and all the trivial methods do not have to be
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/// re-implemented.</p>
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///
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/// <p>If the default implementation of a method provided in this class does
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/// not suit a particular implementation of the 'ImgData' interface, the method
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/// can be overridden to implement the proper behavior.</p>
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///
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/// </summary>
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/// <seealso cref="ImgData">
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///
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/// </seealso>
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public abstract class ImgDataAdapter : ImgData
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{
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/// <summary> Returns the overall width of the current tile in pixels. This is the
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/// tile's width without accounting for any component subsampling. This is
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/// also referred as the reference grid width in the current tile.
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///
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/// <p>This default implementation returns the value of the source.</p>
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///
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/// </summary>
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/// <returns> The total current tile's width in pixels.
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///
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/// </returns>
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virtual public int TileWidth
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{
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get
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{
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return imgdatasrc.TileWidth;
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}
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}
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/// <summary> Returns the overall height of the current tile in pixels. This is the
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/// tile's height without accounting for any component subsampling. This is
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/// also referred as the reference grid height in the current tile.
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///
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/// <p>This default implementation returns the value of the source.</p>
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///
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/// </summary>
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/// <returns> The total current tile's height in pixels.
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///
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/// </returns>
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virtual public int TileHeight
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{
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get
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{
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return imgdatasrc.TileHeight;
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}
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}
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/// <summary>Returns the nominal tiles width </summary>
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virtual public int NomTileWidth
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{
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get
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{
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return imgdatasrc.NomTileWidth;
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}
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}
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/// <summary>Returns the nominal tiles height </summary>
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virtual public int NomTileHeight
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{
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get
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{
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return imgdatasrc.NomTileHeight;
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}
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}
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/// <summary> Returns the overall width of the image in pixels. This is the image's
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/// width without accounting for any component subsampling or tiling.
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///
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/// <p>This default implementation returns the value of the source.</p>
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///
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/// </summary>
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/// <returns> The total image's width in pixels.
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///
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/// </returns>
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virtual public int ImgWidth
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{
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get
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{
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return imgdatasrc.ImgWidth;
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}
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}
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/// <summary> Returns the overall height of the image in pixels. This is the image's
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/// height without accounting for any component subsampling or tiling.
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///
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/// <p>This default implementation returns the value of the source.</p>
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///
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/// </summary>
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/// <returns> The total image's height in pixels.
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///
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/// </returns>
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virtual public int ImgHeight
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{
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get
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{
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return imgdatasrc.ImgHeight;
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}
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}
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/// <summary> Returns the number of components in the image.
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///
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/// <p>This default implementation returns the value of the source.</p>
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///
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/// </summary>
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/// <returns> The number of components in the image.
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///
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/// </returns>
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virtual public int NumComps
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{
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get
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{
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return imgdatasrc.NumComps;
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}
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}
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/// <summary> Returns the index of the current tile, relative to a standard scan-line
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/// order.
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///
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/// <p>This default implementation returns the value of the source.</p>
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///
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/// </summary>
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/// <returns> The current tile's index (starts at 0).
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///
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/// </returns>
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virtual public int TileIdx
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{
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get
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{
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return imgdatasrc.TileIdx;
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}
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}
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/// <summary>Returns the horizontal tile partition offset in the reference grid </summary>
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virtual public int TilePartULX
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{
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get
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{
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return imgdatasrc.TilePartULX;
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}
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}
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/// <summary>Returns the vertical tile offset in the reference grid </summary>
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virtual public int TilePartULY
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{
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get
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{
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return imgdatasrc.TilePartULY;
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}
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}
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/// <summary> Returns the horizontal coordinate of the image origin, the top-left
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/// corner, in the canvas system, on the reference grid.
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///
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/// <p>This default implementation returns the value of the source.</p>
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///
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/// </summary>
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/// <returns> The horizontal coordinate of the image origin in the canvas
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/// system, on the reference grid.
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///
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/// </returns>
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virtual public int ImgULX
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{
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get
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{
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return imgdatasrc.ImgULX;
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}
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}
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/// <summary> Returns the vertical coordinate of the image origin, the top-left
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/// corner, in the canvas system, on the reference grid.
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///
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/// <p>This default implementation returns the value of the source.</p>
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///
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/// </summary>
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/// <returns> The vertical coordinate of the image origin in the canvas
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/// system, on the reference grid.
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///
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/// </returns>
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virtual public int ImgULY
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{
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get
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{
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return imgdatasrc.ImgULY;
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}
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}
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/// <summary>Index of the current tile </summary>
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protected internal int tIdx = 0;
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/// <summary>The ImgData source </summary>
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protected internal ImgData imgdatasrc;
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/// <summary> Instantiates the ImgDataAdapter object specifying the ImgData source.
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///
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/// </summary>
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/// <param name="src">From where to obtain all the ImgData values.
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///
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/// </param>
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protected internal ImgDataAdapter(ImgData src)
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{
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imgdatasrc = src;
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}
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/// <summary> Returns the component subsampling factor in the horizontal direction,
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/// for the specified component. This is, approximately, the ratio of
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/// dimensions between the reference grid and the component itself, see the
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/// 'ImgData' interface desription for details.
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///
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/// <p>This default implementation returns the value of the source.</p>
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///
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/// </summary>
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/// <param name="c">The index of the component (between 0 and N-1)
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///
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/// </param>
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/// <returns> The horizontal subsampling factor of component 'c'
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///
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/// </returns>
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/// <seealso cref="ImgData">
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///
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/// </seealso>
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public virtual int getCompSubsX(int c)
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{
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return imgdatasrc.getCompSubsX(c);
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}
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/// <summary> Returns the component subsampling factor in the vertical direction, for
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/// the specified component. This is, approximately, the ratio of
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/// dimensions between the reference grid and the component itself, see the
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/// 'ImgData' interface desription for details.
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///
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/// <p>This default implementation returns the value of the source.</p>
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///
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/// </summary>
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/// <param name="c">The index of the component (between 0 and N-1)
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///
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/// </param>
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/// <returns> The vertical subsampling factor of component 'c'
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///
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/// </returns>
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/// <seealso cref="ImgData">
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///
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/// </seealso>
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public virtual int getCompSubsY(int c)
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{
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return imgdatasrc.getCompSubsY(c);
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}
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/// <summary> Returns the width in pixels of the specified tile-component
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/// tile.
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///
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/// <p>This default implementation returns the value of the source.</p>
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///
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/// </summary>
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/// <param name="t">Tile index
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///
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/// </param>
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/// <param name="c">The index of the component, from 0 to N-1.
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///
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/// </param>
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/// <returns> The width in pixels of component <tt>c</tt> in tile<tt>t</tt>.
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///
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/// </returns>
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public virtual int getTileCompWidth(int t, int c)
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{
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return imgdatasrc.getTileCompWidth(t, c);
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}
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/// <summary> Returns the height in pixels of the specified tile-component.
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///
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/// <p>This default implementation returns the value of the source.</p>
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///
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/// </summary>
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/// <param name="t">The tile index.
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///
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/// </param>
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/// <param name="c">The index of the component, from 0 to N-1.
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///
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/// </param>
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/// <returns> The height in pixels of component <tt>c</tt> in tile
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/// <tt>t</tt>.
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///
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/// </returns>
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public virtual int getTileCompHeight(int t, int c)
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{
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return imgdatasrc.getTileCompHeight(t, c);
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}
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/// <summary> Returns the width in pixels of the specified component in the overall
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/// image.
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///
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/// <p>This default implementation returns the value of the source.</p>
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///
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/// </summary>
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/// <param name="c">The index of the component, from 0 to N-1.
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///
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/// </param>
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/// <returns> The width in pixels of component <tt>c</tt> in the overall
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/// image.
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///
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/// </returns>
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public virtual int getCompImgWidth(int c)
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{
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return imgdatasrc.getCompImgWidth(c);
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}
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/// <summary> Returns the height in pixels of the specified component in the overall
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/// image.
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///
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/// <p>This default implementation returns the value of the source.</p>
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///
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/// </summary>
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/// <param name="c">The index of the component, from 0 to N-1.
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///
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/// </param>
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/// <returns> The height in pixels of component <tt>c</tt> in the overall
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/// image.
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///
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/// </returns>
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public virtual int getCompImgHeight(int c)
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{
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return imgdatasrc.getCompImgHeight(c);
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}
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/// <summary> Returns the number of bits, referred to as the "range bits",
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/// corresponding to the nominal range of the image data in the specified
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/// component. If this number is <i>n</b> then for unsigned data the
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/// nominal range is between 0 and 2^b-1, and for signed data it is between
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/// -2^(b-1) and 2^(b-1)-1. In the case of transformed data which is not in
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/// the image domain (e.g., wavelet coefficients), this method returns the
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/// "range bits" of the image data that generated the coefficients.
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///
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/// <p>This default implementation returns the value of the source.</p>
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///
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/// </summary>
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/// <param name="c">The index of the component.
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///
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/// </param>
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/// <returns> The number of bits corresponding to the nominal range of the
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/// image data (in the image domain).
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///
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/// </returns>
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public virtual int getNomRangeBits(int c)
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{
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return imgdatasrc.getNomRangeBits(c);
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}
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/// <summary> Changes the current tile, given the new indexes. An
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/// IllegalArgumentException is thrown if the indexes do not correspond to
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/// a valid tile.
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///
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/// <p>This default implementation just changes the tile in the source.</p>
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///
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/// </summary>
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/// <param name="x">The horizontal index of the tile.
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///
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/// </param>
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/// <param name="y">The vertical index of the new tile.
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///
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/// </param>
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public virtual void setTile(int x, int y)
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{
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imgdatasrc.setTile(x, y);
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tIdx = TileIdx;
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}
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/// <summary> Advances to the next tile, in standard scan-line order (by rows then
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/// columns). An NoNextElementException is thrown if the current tile is
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/// the last one (i.e. there is no next tile).
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///
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/// <p>This default implementation just advances to the next tile in the
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/// source.</p>
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///
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/// </summary>
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public virtual void nextTile()
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{
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imgdatasrc.nextTile();
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tIdx = TileIdx;
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}
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/// <summary> Returns the indexes of the current tile. These are the horizontal and
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/// vertical indexes of the current tile.
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///
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/// <p>This default implementation returns the value of the source.</p>
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///
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/// </summary>
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/// <param name="co">If not null this object is used to return the information. If
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/// null a new one is created and returned.
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///
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/// </param>
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/// <returns> The current tile's indexes (vertical and horizontal indexes).
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///
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/// </returns>
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public virtual Coord getTile(Coord co)
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{
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return imgdatasrc.getTile(co);
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}
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/// <summary> Returns the horizontal coordinate of the upper-left corner of the
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/// specified component in the current tile.
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///
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/// <p>This default implementation returns the value of the source.</p>
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///
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/// </summary>
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/// <param name="c">The component index.
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///
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/// </param>
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public virtual int getCompULX(int c)
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{
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return imgdatasrc.getCompULX(c);
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}
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/// <summary> Returns the vertical coordinate of the upper-left corner of the
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/// specified component in the current tile.
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///
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/// <p>This default implementation returns the value of the source.</p>
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///
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/// </summary>
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/// <param name="c">The component index.
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///
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/// </param>
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public virtual int getCompULY(int c)
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{
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return imgdatasrc.getCompULY(c);
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}
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/// <summary> Returns the number of tiles in the horizontal and vertical directions.
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///
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/// <p>This default implementation returns the value of the source.</p>
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///
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/// </summary>
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/// <param name="co">If not null this object is used to return the information. If
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/// null a new one is created and returned.
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///
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/// </param>
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/// <returns> The number of tiles in the horizontal (Coord.x) and vertical
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/// (Coord.y) directions.
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///
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/// </returns>
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public virtual Coord getNumTiles(Coord co)
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{
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return imgdatasrc.getNumTiles(co);
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}
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/// <summary> Returns the total number of tiles in the image.
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///
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/// <p>This default implementation returns the value of the source.</p>
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///
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/// </summary>
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/// <returns> The total number of tiles in the image.
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///
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/// </returns>
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public virtual int getNumTiles()
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{
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return imgdatasrc.getNumTiles();
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}
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}
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} |