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
593 lines
18 KiB
C#
593 lines
18 KiB
C#
/*
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* CVS identifier:
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*
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* $Id: InvWTAdapter.java,v 1.14 2002/07/25 15:11:03 grosbois Exp $
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*
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* Class: InvWTAdapter
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*
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* Description: <short description of class>
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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.decoder;
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using CSJ2K.j2k.image;
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namespace CSJ2K.j2k.wavelet.synthesis
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{
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/// <summary> This class provides default implementation of the methods in the 'InvWT'
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/// interface. The source is always a 'MultiResImgData', which is a
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/// multi-resolution image. The default implementation is just to return the
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/// value of the source at the current image resolution level, which is set by
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/// the 'setImgResLevel()' method.
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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 the 'InvWT' interface, because most of the trivial
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/// methods are already 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 'InvWT' interface, the method
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/// can be overriden to implement the proper behaviour.</p>
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///
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/// <p>If the 'setImgResLevel()' method is overriden then it is very important
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/// that the one of this class is called from the overriding method, so that
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/// the other methods in this class return the correct values.</p>
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///
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/// </summary>
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/// <seealso cref="InvWT">
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///
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/// </seealso>
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public abstract class InvWTAdapter : InvWT
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{
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/// <summary> Sets the image reconstruction resolution level. A value of 0 means
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/// reconstruction of an image with the lowest resolution (dimension)
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/// available.
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///
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/// <p>Note: Image resolution level indexes may differ from tile-component
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/// resolution index. They are indeed indexed starting from the lowest
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/// number of decomposition levels of each component of each tile.</p>
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///
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/// <p>Example: For an image (1 tile) with 2 components (component 0 having
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/// 2 decomposition levels and component 1 having 3 decomposition levels),
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/// the first (tile-) component has 3 resolution levels and the second one
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/// has 4 resolution levels, whereas the image has only 3 resolution levels
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/// available.</p>
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///
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/// </summary>
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/// <param name="rl">The image resolution level.
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///
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/// </param>
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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 ImgResLevel
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{
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set
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{
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if (value < 0)
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{
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throw new System.ArgumentException("Resolution level index " + "cannot be negative.");
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}
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reslvl = value;
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}
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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 at the
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/// current reconstruction resolution level.</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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// Retrieves the tile maximum resolution level index and request the
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// width from the source module.
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int tIdx = TileIdx;
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int rl = 10000;
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int mrl;
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int nc = mressrc.NumComps;
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for (int c = 0; c < nc; c++)
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{
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mrl = mressrc.getSynSubbandTree(tIdx, c).resLvl;
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if (mrl < rl)
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rl = mrl;
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}
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return mressrc.getTileWidth(rl);
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}
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}
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/// <summary> Returns the overall height of the current tile in pixels. This
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/// is the tile's height without accounting for any component
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/// subsampling. This is also referred as the reference grid height
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/// in the current tile.
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///
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/// <p>This default implementation returns the value of the source at the
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/// current reconstruction resolution level.</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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// Retrieves the tile maximum resolution level index and request the
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// height from the source module.
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int tIdx = TileIdx;
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int rl = 10000;
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int mrl;
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int nc = mressrc.NumComps;
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for (int c = 0; c < nc; c++)
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{
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mrl = mressrc.getSynSubbandTree(tIdx, c).resLvl;
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if (mrl < rl)
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rl = mrl;
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}
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return mressrc.getTileHeight(rl);
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}
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}
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/// <summary>Returns the nominal width of tiles </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 mressrc.NomTileWidth;
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}
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}
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/// <summary>Returns the nominal height of tiles </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 mressrc.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
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/// image's width without accounting for any component subsampling
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/// or tiling.
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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 mressrc.getImgWidth(reslvl);
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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
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/// image's height without accounting for any component subsampling
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/// or tiling.
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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 mressrc.getImgHeight(reslvl);
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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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/// </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 mressrc.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 mressrc.TileIdx;
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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 at the
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/// current reconstruction resolution level.</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 mressrc.getImgULX(reslvl);
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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 at the
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/// current reconstruction resolution level.</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 mressrc.getImgULY(reslvl);
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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 mressrc.TilePartULX;
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}
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}
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/// <summary>Returns the vertical tile partition 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 mressrc.TilePartULY;
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}
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}
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/// <summary>The decoder specifications </summary>
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protected internal DecoderSpecs decSpec;
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/// <summary>The 'MultiResImgData' source </summary>
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protected internal MultiResImgData mressrc;
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/// <summary>The resquested image resolution level for reconstruction. </summary>
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protected internal int reslvl;
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/// <summary>The maximum available image resolution level </summary>
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protected internal int maxImgRes;
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/// <summary> Instantiates the 'InvWTAdapter' object using the specified
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/// 'MultiResImgData' source. The reconstruction resolution level is set to
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/// full resolution (i.e. the maximum resolution level).
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///
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/// </summary>
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/// <param name="src">From where to obtain the values to return
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///
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/// </param>
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/// <param name="decSpec">The decoder specifications
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///
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/// </param>
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protected internal InvWTAdapter(MultiResImgData src, DecoderSpecs decSpec)
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{
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mressrc = src;
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this.decSpec = decSpec;
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maxImgRes = decSpec.dls.Min;
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}
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/// <summary> Returns the component subsampling factor in the horizontal
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/// direction, for the specified component. This is, approximately,
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/// the ratio of dimensions between the reference grid and the
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/// component itself, see the 'ImgData' interface desription for
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/// details.
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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="jj2000.j2k.image.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 mressrc.getCompSubsX(c);
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}
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/// <summary> Returns the component subsampling factor in the vertical
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/// direction, for the specified component. This is, approximately,
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/// the ratio of dimensions between the reference grid and the
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/// component itself, see the 'ImgData' interface desription for
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/// details.
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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="jj2000.j2k.image.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 mressrc.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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///
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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>n</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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// Retrieves the tile-component maximum resolution index and gets the
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// width from the source.
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int rl = mressrc.getSynSubbandTree(t, c).resLvl;
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return mressrc.getTileCompWidth(t, c, rl);
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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 at the
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/// current reconstruction resolution level.</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>n</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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// Retrieves the tile-component maximum resolution index and gets the
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// height from the source.
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int rl = mressrc.getSynSubbandTree(t, c).resLvl;
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return mressrc.getTileCompHeight(t, c, rl);
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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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/// </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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// Retrieves the component maximum resolution index and gets the width
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// from the source module.
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int rl = decSpec.dls.getMinInComp(c);
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return mressrc.getCompImgWidth(c, rl);
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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 at the
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/// current reconstruction resolution level.</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>n</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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// Retrieves the component maximum resolution index and gets the
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// height from the source module.
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int rl = decSpec.dls.getMinInComp(c);
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return mressrc.getCompImgHeight(c, rl);
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}
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/// <summary> Changes the current tile, given the new indices. An
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/// IllegalArgumentException is thrown if the coordinates do not correspond
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/// to a valid tile.
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///
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/// <p>This default implementation calls the same method on 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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mressrc.setTile(x, y);
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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 calls the same method on the 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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mressrc.nextTile();
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}
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/// <summary> Returns the indixes 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 indices (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 mressrc.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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/// </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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// Find tile-component maximum resolution index and gets information
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// from the source module.
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int tIdx = TileIdx;
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int rl = mressrc.getSynSubbandTree(tIdx, c).resLvl;
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return mressrc.getResULX(c, rl);
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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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/// </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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// Find tile-component maximum resolution index and gets information
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// from the source module.
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int tIdx = TileIdx;
|
|
int rl = mressrc.getSynSubbandTree(tIdx, c).resLvl;
|
|
return mressrc.getResULY(c, rl);
|
|
}
|
|
|
|
/// <summary> Returns the number of tiles in the horizontal and vertical directions.
|
|
///
|
|
/// <p>This default implementation returns the value of the source.</p>
|
|
///
|
|
/// </summary>
|
|
/// <param name="co">If not null this object is used to return the information. If
|
|
/// null a new one is created and returned.
|
|
///
|
|
/// </param>
|
|
/// <returns> The number of tiles in the horizontal (Coord.x) and vertical
|
|
/// (Coord.y) directions.
|
|
///
|
|
/// </returns>
|
|
public virtual Coord getNumTiles(Coord co)
|
|
{
|
|
return mressrc.getNumTiles(co);
|
|
}
|
|
|
|
/// <summary> Returns the total number of tiles in the image.
|
|
///
|
|
/// <p>This default implementation returns the value of the source.</p>
|
|
///
|
|
/// </summary>
|
|
/// <returns> The total number of tiles in the image.
|
|
///
|
|
/// </returns>
|
|
public virtual int getNumTiles()
|
|
{
|
|
return mressrc.getNumTiles();
|
|
}
|
|
|
|
/// <summary> Returns the specified synthesis subband tree
|
|
///
|
|
/// </summary>
|
|
/// <param name="t">Tile index.
|
|
///
|
|
/// </param>
|
|
/// <param name="c">Component index.
|
|
///
|
|
/// </param>
|
|
public virtual SubbandSyn getSynSubbandTree(int t, int c)
|
|
{
|
|
return mressrc.getSynSubbandTree(t, c);
|
|
}
|
|
public abstract bool isReversible(int param1, int param2);
|
|
public abstract int getNomRangeBits(int param1);
|
|
public abstract int getImplementationType(int param1);
|
|
}
|
|
} |